MetaWindowActor: Fix crashes when mapping and unmapping windows

The assumptions made when getting the size of the window for the
paint volume turned out not to be accurate in all cases -
get_paint_volume() could be called on windows without computed
bounds.

https://bugzilla.gnome.org/show_bug.cgi?id=592382

.gitignore

@@ -13,17 +13,22 @@ config.sub
 configure
 depcomp
 install-sh
+intltool-extract.in
+intltool-merge.in
 libtool
 ltmain.sh
 missing
 .deps
-src/metacity-wm.desktop
+src/mutter-wm.desktop
+src/mutter.desktop
 *.o
 *.a
 *.lo
 *.la
 .libs
 *.swp
+*.gir
+*.typelib
 tidy-enum-types.[ch]
 tidy-marshal.[ch]
 stamp-tidy-enum-types.h
@@ -38,19 +43,18 @@ POTFILES
 50-metacity-desktop-key.xml
 50-metacity-key.xml
 inlinepixbufs.h
-libmetacity-private.pc
-metacity
-metacity-dialog
-metacity-theme-viewer
-metacity.desktop
-metacity.schemas
+libmutter-private.pc
+mutter
+mutter-theme-viewer
+mutter.desktop
+mutter.schemas
 testasyncgetprop
 testboxes
 testgradient
-metacity-grayscale
-metacity-mag
-metacity-message
-metacity-window-demo
+mutter-grayscale
+mutter-mag
+mutter-message
+mutter-window-demo
 focus-window
 test-gravity
 test-resizing
@@ -58,3 +62,8 @@ test-size-hints
 wm-tester
 INSTALL
 mkinstalldirs
+src/mutter-enum-types.[ch]
+src/stamp-mutter-enum-types.h
+src/mutter-marshal.[ch]
+src/stamp-mutter-marshal.h
+src/mutter-plugins.pc

configure.in

@@ -1,15 +1,13 @@
 AC_PREREQ(2.50)
 
 m4_define([mutter_major_version], [2])
-m4_define([mutter_minor_version], [27])
-# Fibonacci sequence for micro version numbering:
-# 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987
+m4_define([mutter_minor_version], [91])
 m4_define([mutter_micro_version], [2])
 
 m4_define([mutter_version],
           [mutter_major_version.mutter_minor_version.mutter_micro_version])
 
-m4_define([mutter_plugin_api_version], [2])
+m4_define([mutter_plugin_api_version], [3])
 
 AC_INIT([mutter], [mutter_version],
         [http://bugzilla.gnome.org/enter_bug.cgi?product=mutter])
@@ -18,7 +16,7 @@ AC_CONFIG_SRCDIR(src/core/display.c)
 AC_CONFIG_HEADERS(config.h)
 
 AM_INIT_AUTOMAKE([dist-bzip2 no-dist-gzip])
-m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([no])],)
+m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])],)
 AM_MAINTAINER_MODE
 
 MUTTER_MAJOR_VERSION=mutter_major_version
@@ -65,68 +63,75 @@ AC_C_BIGENDIAN
 
 #### Warnings
 
+# Stay command-line compatible with the gnome-common configure option. Here
+# minimum/yes/maximum are the same, however.
+AC_ARG_ENABLE(compile_warnings,
+  AS_HELP_STRING([--enable-compile-warnings=@<:@no/minimum/yes/maximum/error@:>@],[Turn on compiler warnings]),,
+  enable_compile_warnings=error)
+
 changequote(,)dnl
-if test "x$GCC" = "xyes"; then
-  case " $CFLAGS " in
-  *[\ \	]-Wall[\ \	]*) ;;
-  *) CFLAGS="$CFLAGS -Wall" ;;
-  esac
-
-#  case " $CFLAGS " in
-#  *[\ \	]-Wshadow[\ \	]*) ;;
-#  *) CFLAGS="$CFLAGS -Wshadow" ;;
-#  esac
-
-  case " $CFLAGS " in
-  *[\ \	]-Wchar-subscripts[\ \	]*) ;;
-  *) CFLAGS="$CFLAGS -Wchar-subscripts" ;;
-  esac
-
-  case " $CFLAGS " in
-  *[\ \	]-Wmissing-declarations[\ \	]*) ;;
-  *) CFLAGS="$CFLAGS -Wmissing-declarations" ;;
-  esac
-
-  case " $CFLAGS " in
-  *[\ \	]-Wmissing-prototypes[\ \	]*) ;;
-  *) CFLAGS="$CFLAGS -Wmissing-prototypes" ;;
-  esac
-
-  case " $CFLAGS " in
-  *[\ \	]-Wnested-externs[\ \	]*) ;;
-  *) CFLAGS="$CFLAGS -Wnested-externs" ;;
-  esac
-
-  case " $CFLAGS " in
-  *[\ \	]-Wpointer-arith[\ \	]*) ;;
-  *) CFLAGS="$CFLAGS -Wpointer-arith" ;;
-  esac
-
-  case " $CFLAGS " in
-  *[\ \	]-Wcast-align[\ \	]*) ;;
-  *) CFLAGS="$CFLAGS -Wcast-align" ;;
-  esac
-
-  case " $CFLAGS " in
-  *[\ \	]-Wsign-compare[\ \	]*) ;;
-  *) CFLAGS="$CFLAGS -Wsign-compare" ;;
-  esac
-
-  if test "x$enable_ansi" = "xyes"; then
+if test "$enable_compile_warnings" != no ; then
+  if test "x$GCC" = "xyes"; then
     case " $CFLAGS " in
-    *[\ \	]-ansi[\ \	]*) ;;
-    *) CFLAGS="$CFLAGS -ansi" ;;
+    *[\ \	]-Wall[\ \	]*) ;;
+    *) CFLAGS="$CFLAGS -Wall" ;;
+    esac
+
+#   case " $CFLAGS " in
+#   *[\ \	]-Wshadow[\ \	]*) ;;
+#   *) CFLAGS="$CFLAGS -Wshadow" ;;
+#   esac
+
+    case " $CFLAGS " in
+    *[\ \	]-Wchar-subscripts[\ \	]*) ;;
+    *) CFLAGS="$CFLAGS -Wchar-subscripts" ;;
     esac
 
     case " $CFLAGS " in
-    *[\ \	]-pedantic[\ \	]*) ;;
-    *) CFLAGS="$CFLAGS -pedantic" ;;
+    *[\ \	]-Wmissing-declarations[\ \	]*) ;;
+    *) CFLAGS="$CFLAGS -Wmissing-declarations" ;;
     esac
+
+    case " $CFLAGS " in
+    *[\ \	]-Wmissing-prototypes[\ \	]*) ;;
+    *) CFLAGS="$CFLAGS -Wmissing-prototypes" ;;
+    esac
+
+    case " $CFLAGS " in
+    *[\ \	]-Wnested-externs[\ \	]*) ;;
+    *) CFLAGS="$CFLAGS -Wnested-externs" ;;
+    esac
+
+    case " $CFLAGS " in
+    *[\ \	]-Wpointer-arith[\ \	]*) ;;
+    *) CFLAGS="$CFLAGS -Wpointer-arith" ;;
+    esac
+
+    case " $CFLAGS " in
+    *[\ \	]-Wcast-align[\ \	]*) ;;
+    *) CFLAGS="$CFLAGS -Wcast-align" ;;
+    esac
+
+    case " $CFLAGS " in
+    *[\ \	]-Wsign-compare[\ \	]*) ;;
+    *) CFLAGS="$CFLAGS -Wsign-compare" ;;
+    esac
+
+    if test "$enable_compile_warnings" = error; then
+      case " $CFLAGS " in
+      *[\ \	]-Werror[\ \	]*) ;;
+      *) CFLAGS="$CFLAGS -Werror" ;;
+      esac
+    fi
   fi
 fi
 changequote([,])dnl
 
-MUTTER_PC_MODULES='gtk+-2.0 >= 2.10.0 pango >= 1.2.0'
+GTK_MIN_VERSION=2.90.7
+CANBERRA_GTK=libcanberra-gtk3
+CANBERRA_GTK_VERSION=0.26
+
+MUTTER_PC_MODULES="gtk+-3.0 >= $GTK_MIN_VERSION pango >= 1.2.0 cairo >= 1.10.0"
 
 AC_ARG_ENABLE(gconf,
   AC_HELP_STRING([--disable-gconf],
@@ -162,6 +167,11 @@ AC_ARG_WITH(introspection,
                  [disable the use of GObject introspection]),,
   with_introspection=auto)
 
+AC_ARG_WITH(libcanberra,
+  AC_HELP_STRING([--without-libcanberra],
+                 [disable the use of libcanberra for playing sounds]),,
+  with_libcanberra=auto)
+
 AC_ARG_ENABLE(xsync,
   AC_HELP_STRING([--disable-xsync],
                  [disable mutter's use of the XSync extension]),,
@@ -178,11 +188,11 @@ AC_CHECK_HEADERS(execinfo.h, [AC_CHECK_FUNCS(backtrace)])
 AM_GLIB_GNU_GETTEXT
 
 ## here we get the flags we'll actually use
-# GOptionEntry requires	glib-2.6.0
-PKG_CHECK_MODULES(ALL, glib-2.0 >= 2.6.0)
+# GRegex requires Glib-2.14.0
+PKG_CHECK_MODULES(ALL, glib-2.0 >= 2.14.0)
 # gtk_window_set_icon_name requires gtk2+-2.6.0
-PKG_CHECK_MODULES(MUTTER_MESSAGE, gtk+-2.0 >= 2.6.0)
-PKG_CHECK_MODULES(MUTTER_WINDOW_DEMO, gtk+-2.0 >= 2.6.0)
+PKG_CHECK_MODULES(MUTTER_MESSAGE, gtk+-3.0 >= $GTK_MIN_VERSION)
+PKG_CHECK_MODULES(MUTTER_WINDOW_DEMO, gtk+-3.0 >= $GTK_MIN_VERSION)
 
 # Unconditionally use this dir to avoid a circular dep with gnomecc
 GNOME_KEYBINDINGS_KEYSDIR="${datadir}/gnome-control-center/keybindings"
@@ -214,6 +224,24 @@ else
   echo "Building without libstartup-notification"
 fi
 
+have_libcanberra=no
+AC_MSG_CHECKING([libcanberra-gtk])
+if test x$with_libcanberra = xno ; then
+  AC_MSG_RESULT([disabled])
+else
+  if $PKG_CONFIG --exists $CANBERRA_GTK '>=' $CANBERRA_GTK_VERSION; then
+    have_libcanberra=yes
+    AC_MSG_RESULT(yes)
+    MUTTER_PC_MODULES="$MUTTER_PC_MODULES $CANBERRA_GTK"
+    AC_DEFINE([HAVE_LIBCANBERRA], 1, [Building with libcanberra for playing sounds])
+  else
+    AC_MSG_RESULT(no)
+    if test x$with_libcanberra = xyes ; then
+      AC_MSG_ERROR([libcanberra forced and libcanberra-gtk was not found])
+    fi
+  fi
+fi
+
 XCOMPOSITE_VERSION=0.2
 
 AC_MSG_CHECKING([Xcomposite >= $XCOMPOSITE_VERSION])
@@ -228,7 +256,7 @@ else
   AC_MSG_ERROR([no. Mutter requires the Xcomposite extension to build.])
 fi
 
-CLUTTER_VERSION=1.0.0
+CLUTTER_VERSION=1.2.0
 CLUTTER_PACKAGE=clutter-1.0
 AC_SUBST(CLUTTER_PACKAGE)
 if $PKG_CONFIG --atleast-version $CLUTTER_VERSION $CLUTTER_PACKAGE ; then
@@ -253,7 +281,7 @@ else
 fi
 
 if test x$with_introspection != xno; then
-  PKG_CHECK_MODULES(INTROSPECTION, gobject-introspection-1.0, have_introspection=yes, have_introspection=no)
+  PKG_CHECK_MODULES(INTROSPECTION, gobject-introspection-1.0 >= 0.9.5, have_introspection=yes, have_introspection=no)
   if test x$have_introspection=xyes; then
     MUTTER_PC_MODULES="$MUTTER_PC_MODULES gobject-introspection-1.0"
     AC_DEFINE(HAVE_INTROSPECTION, 1, [Define if GObject introspection is available])
@@ -416,7 +444,7 @@ fi
 
 MUTTER_LIBS="$MUTTER_LIBS $XSYNC_LIBS $RANDR_LIBS $SHAPE_LIBS $X_LIBS $X_PRE_LIBS -lX11 $X_EXTRA_LIBS -lm"
 MUTTER_MESSAGE_LIBS="$MUTTER_MESSAGE_LIBS $X_LIBS $X_PRE_LIBS -lX11 $X_EXTRA_LIBS"
-MUTTER_WINDOW_DEMO_LIBS="$MUTTER_WINDOW_DEMO_LIBS $X_LIBS $X_PRE_LIBS -lX11 $X_EXTRA_LIBS"
+MUTTER_WINDOW_DEMO_LIBS="$MUTTER_WINDOW_DEMO_LIBS $X_LIBS $X_PRE_LIBS -lX11 $X_EXTRA_LIBS -lm"
 MUTTER_PROPS_LIBS="$MUTTER_PROPS_LIBS $X_LIBS $X_PRE_LIBS -lX11 $X_EXTRA_LIBS"
 
 found_sm=no
@@ -484,10 +512,8 @@ if test "x$enable_debug" = "xyes"; then
 	CFLAGS="$CFLAGS -g -O"
 fi
 
-# Warnings are there for a reason
-if test "x$GCC" = "xyes"; then
-  CFLAGS="$CFLAGS -Wall -Werror -ansi"
-fi
+# For fix-meta-rectangle.py
+AM_PATH_PYTHON([2.5])
 
 # Use gnome-doc-utils:
 GNOME_DOC_INIT([0.8.0])
@@ -524,7 +550,7 @@ fi
 
 dnl ==========================================================================
 echo "
-mutter-$VERSION:
+mutter-$VERSION
 
 	prefix:                   ${prefix}
 	source code location:	  ${srcdir}
@@ -534,6 +560,7 @@ mutter-$VERSION:
 	XFree86 Xinerama:         ${use_xfree_xinerama}
 	Solaris Xinerama:         ${use_solaris_xinerama}
 	Startup notification:     ${have_startup_notification}
+	libcanberra:              ${have_libcanberra}
 	Introspection:            ${have_introspection}
 	Session management:       ${found_sm}
 	Shape extension:          ${found_shape}

doc/theme-format.txt

@@ -4,6 +4,7 @@ of the theme format, and a given theme can support more than one format.
 Version 1:     THEMEDIR/metacity-1/metacity-theme-1.xml
   (original metacity format)
 Version 2:     THEMEDIR/metacity-1/metacity-theme-2.xml
+Version 3:     THEMEDIR/metacity-1/metacity-theme-3.xml
 
 The subdirectory name is "metacity-1" in all versions.
 
@@ -21,6 +22,41 @@ This document has separate sections for each format version. You may
 want to read the document in reverse order, since the base features
 are discussed under version 1.
 
+New Features in Theme Format Version 3.1
+========================================
+
+Additional predefined variables are added for positioning expressions:
+
+ frame_x_center: the X center of the entire frame, with respect to the
+     piece currently being drawn.
+ frame_y_center: the Y center of the entire frame, with respect to the
+     piece currently being drawn.
+
+The <title/> element now supports an "ellipsize_width" attribute. When
+specified, this gives a width at which to ellipsize the title. If not
+specified, the title will simply be clipped to the title area.
+
+New Features in Theme Format Version 3
+======================================
+
+Format version 3 has exactly one new feature; any element in the file
+can now have a version attribute:
+
+  version="[<|<=|=>|>] MAJOR.MINOR"
+
+(< and > should be to be entity escaped as &lt; and &gt;). If this
+version check is not met, then the element and its children will be
+ignored. This allows having alternate sections of the theme file for
+older and newer version of the Metacity theme format.
+
+When placed on the toplevel <metacity_theme> element, an unsatisfied
+version check will not just cause the contents of the file to be
+ignored, it will also cause the lookup of a theme file to proceed on
+and look for an older format 2 or format 1 file. This allows making a
+metacity-theme-3.xml file that is only used the format version 3.2 or
+newer is supported, and using metacity-theme-1.xml for older window
+managers.
+
 New Features in Theme Format Version 2
 ======================================
 

po/LINGUAS

@@ -10,6 +10,7 @@ be@latin
 bg
 bn
 bn_IN
+br
 bs
 ca
 ca@valencia
@@ -56,6 +57,7 @@ mn
 mr
 ms
 nb
+nds
 ne
 nl
 nn

po/POTFILES.in

@@ -1,5 +1,6 @@
 # List of source files containing translatable strings.
 # Please keep this file sorted alphabetically.
+src/core/bell.c
 src/core/core.c
 src/core/delete.c
 src/core/display.c

src/Makefile.am

@@ -1,3 +1,6 @@
+# Flag build for parallelism; see https://savannah.gnu.org/patch/?6905
+.AUTOPARALLEL:
+
 lib_LTLIBRARIES = libmutter-private.la
 
 SUBDIRS=wm-tester tools compositor/plugins
@@ -13,34 +16,36 @@ mutter_built_sources = \
 mutter_SOURCES= 				\
 	core/async-getprop.c			\
 	core/async-getprop.h			\
-	core/alttabhandler.c			\
-	include/alttabhandler.h			\
-	core/alttabhandlerdefault.c		\
-	include/alttabhandlerdefault.h		\
 	core/bell.c				\
 	core/bell.h				\
 	core/boxes.c				\
+	core/boxes-private.h			\
 	include/boxes.h				\
 	compositor/compositor.c			\
 	compositor/compositor-private.h		\
-	compositor/mutter-module.c		\
-	compositor/mutter-module.h		\
-	compositor/mutter-plugin.c		\
-	compositor/mutter-plugin-manager.c	\
-	compositor/mutter-plugin-manager.h	\
-	compositor/mutter-shaped-texture.c	\
-	compositor/mutter-window.c		\
-	compositor/mutter-window-private.h	\
-	compositor/mutter-window-group.c	\
-	compositor/mutter-window-group.h	\
-	compositor/shadow.c			\
-	compositor/shadow.h			\
-	compositor/mutter-shaped-texture.h	\
-	compositor/tidy/tidy-texture-frame.c	\
-	compositor/tidy/tidy-texture-frame.h	\
+	compositor/meta-module.c		\
+	compositor/meta-module.h		\
+	compositor/meta-plugin.c		\
+	compositor/meta-plugin-manager.c	\
+	compositor/meta-plugin-manager.h	\
+	compositor/meta-shadow-factory.c	\
+	compositor/meta-shadow-factory-private.h	\
+	compositor/meta-shaped-texture.c	\
+	compositor/meta-shaped-texture.h	\
+	compositor/meta-texture-tower.c		\
+	compositor/meta-texture-tower.h		\
+	compositor/meta-window-actor.c		\
+	compositor/meta-window-actor-private.h	\
+	compositor/meta-window-group.c		\
+	compositor/meta-window-group.h		\
+	compositor/meta-window-shape.c		\
+	compositor/meta-window-shape.h		\
+	compositor/region-utils.c		\
+	compositor/region-utils.h		\
 	include/compositor.h			\
-	include/mutter-plugin.h			\
-	include/mutter-window.h			\
+	include/meta-plugin.h			\
+	include/meta-shadow-factory.h		\
+	include/meta-window-actor.h		\
 	include/compositor-mutter.h 		\
 	core/constraints.c			\
 	core/constraints.h			\
@@ -72,7 +77,7 @@ mutter_SOURCES= 				\
 	core/keybindings.c			\
 	core/keybindings-private.h		\
 	core/main.c				\
-	core/mutter-Xatomtype.h		\
+	core/mutter-Xatomtype.h			\
 	core/place.c				\
 	core/place.h				\
 	core/prefs.c				\
@@ -114,12 +119,12 @@ mutter_SOURCES= 				\
 	include/resizepopup.h			\
 	ui/tabpopup.c				\
 	include/tabpopup.h				\
+	ui/tile-preview.c			\
+	include/tile-preview.h			\
 	ui/theme-parser.c			\
-	ui/theme-parser.h			\
 	ui/theme.c				\
 	ui/theme.h				\
-	ui/themewidget.c			\
-	ui/themewidget.h			\
+	ui/theme-private.h			\
 	ui/ui.c					\
 	include/all-keybindings.h               \
 	$(mutter_built_sources)
@@ -138,25 +143,20 @@ libmutter_private_la_SOURCES=			\
 	ui/preview-widget.c			\
 	ui/preview-widget.h			\
 	ui/theme-parser.c			\
-	ui/theme-parser.h			\
 	ui/theme.c				\
 	ui/theme.h
 
 libmutter_private_la_LDFLAGS = -no-undefined
 libmutter_private_la_LIBADD  = @MUTTER_LIBS@
 
-libmutterincludedir = $(includedir)/mutter/mutter-private
-
 # Headers installed for plugins; introspected information will
 # be extracted into Mutter-<version>.gir
 libmutterinclude_base_headers =		\
-	include/alttabhandler.h			\
 	include/boxes.h				\
 	ui/gradient.h				\
 	include/main.h				\
 	include/util.h				\
 	include/common.h			\
-	ui/theme-parser.h			\
 	ui/theme.h				\
 	include/prefs.h				\
 	include/window.h			\
@@ -164,12 +164,14 @@ libmutterinclude_base_headers =		\
 	include/compositor.h			\
 	include/compositor-mutter.h		\
 	include/types.h				\
+	include/errors.h			\
 	include/screen.h			\
 	include/display.h			\
 	include/group.h				\
 	include/keybindings.h			\
-	include/mutter-plugin.h			\
-	include/mutter-window.h
+	include/meta-plugin.h			\
+	include/meta-shadow-factory.h		\
+	include/meta-window-actor.h
 
 # Excluded from scanning for introspection but installed
 # preview-widget.h: only part of libmutter-private
@@ -178,6 +180,8 @@ libmutterinclude_extra_headers =		\
 	ui/preview-widget.h			\
 	include/atomnames.h
 
+libmutterincludedir = $(includedir)/mutter/mutter-private
+
 libmutterinclude_HEADERS =			\
 	$(libmutterinclude_base_headers)	\
 	$(libmutterinclude_extra_headers)
@@ -201,20 +205,24 @@ typelib_DATA = Meta-$(api_version).typelib
 
 # We need to strip out the attribute that would point back to libmutter-introspect
 # so that libgirepository looks for symbols in the executable instead
-Meta-$(api_version).gir: $(G_IR_SCANNER) mutter $(libmutterinclude_HEADERS) $(mutter_SOURCES)
+Meta-$(api_version).gir: $(G_IR_SCANNER) mutter $(libmutterinclude_HEADERS) $(mutter_SOURCES) Makefile
 	$(AM_V_GEN) pwd=`pwd` ;				\
         cd $(srcdir) &&					\
 	$(G_IR_SCANNER)					\
 		--namespace=Meta			\
 		--nsversion=$(api_version)		\
+		--warn-all				\
+		--warn-error				\
 		--include=GObject-2.0			\
-		--include=Gdk-2.0			\
-		--include=Gtk-2.0			\
+		--include=Gdk-3.0			\
+		--include=Gtk-3.0			\
 		--include=Clutter-1.0			\
 		--pkg=clutter-1.0			\
-		--pkg=gtk+-2.0				\
+		--pkg=gtk+-3.0				\
+		--include=xlib-2.0			\
 		--include=xfixes-4.0			\
 		--program=$$pwd/mutter			\
+		mutter-enum-types.h			\
 		$(filter %.c,$(mutter_SOURCES))		\
 		$(libmutterinclude_base_headers)	\
 		$(INCLUDES)				\
@@ -327,7 +335,7 @@ mutter-marshal.c: Makefile mutter-marshal.list
 
 mutter-enum-types.h: stamp-mutter-enum-types.h Makefile
 	@true
-stamp-mutter-enum-types.h: $(mutter_source_h) mutter-enum-types.h.in
+stamp-mutter-enum-types.h: $(libmutterinclude_base_headers) mutter-enum-types.h.in
 	$(AM_V_GEN) ( cd $(srcdir) && \
 	  $(GLIB_MKENUMS) \
 	    --template $(srcdir)/mutter-enum-types.h.in \

src/compositor/compositor-private.h

@@ -7,7 +7,7 @@
 
 #include "compositor.h"
 #include "display.h"
-#include "mutter-plugin-manager.h"
+#include "meta-plugin-manager.h"
 #include <clutter/clutter.h>
 
 typedef struct _MetaCompScreen MetaCompScreen;
@@ -23,6 +23,8 @@ struct _MetaCompositor
 
   ClutterActor   *shadow_src;
 
+  MetaPlugin     *modal_plugin;
+
   gboolean        show_redraw : 1;
   gboolean        debug       : 1;
   gboolean        no_mipmaps  : 1;
@@ -43,12 +45,24 @@ struct _MetaCompScreen
 
   gint                   switch_workspace_in_progress;
 
-  MutterPluginManager *plugin_mgr;
+  MetaPluginManager *plugin_mgr;
 };
 
-void mutter_switch_workspace_completed (MetaScreen    *screen);
-void mutter_set_stage_input_region     (MetaScreen    *screen,
-                                        XserverRegion  region);
-void mutter_empty_stage_input_region   (MetaScreen    *screen);
+void meta_switch_workspace_completed (MetaScreen    *screen);
+void meta_set_stage_input_region     (MetaScreen    *screen,
+                                      XserverRegion  region);
+void meta_empty_stage_input_region   (MetaScreen    *screen);
+
+gboolean meta_begin_modal_for_plugin (MetaScreen       *screen,
+                                      MetaPlugin       *plugin,
+                                      Window            grab_window,
+                                      Cursor            cursor,
+                                      MetaModalOptions  options,
+                                      guint32           timestamp);
+void     meta_end_modal_for_plugin   (MetaScreen       *screen,
+                                      MetaPlugin       *plugin,
+                                      guint32           timestamp);
+
+void meta_check_end_modal (MetaScreen *screen);
 
 #endif /* META_COMPOSITOR_PRIVATE_H */

src/compositor/compositor.c

@@ -11,8 +11,9 @@
 #include "compositor-mutter.h"
 #include "xprops.h"
 #include "prefs.h"
-#include "mutter-window-private.h"
-#include "mutter-window-group.h"
+#include "meta-shadow-factory.h"
+#include "meta-window-actor-private.h"
+#include "meta-window-group.h"
 #include "../core/window-private.h" /* to check window->hidden */
 #include "../core/display-private.h" /* for meta_display_lookup_x_window() */
 #include <X11/extensions/shape.h>
@@ -33,69 +34,16 @@ composite_at_least_version (MetaDisplay *display, int maj, int min)
   return (major > maj || (major == maj && minor >= min));
 }
 
-static MutterWindow*
-find_window_for_screen (MetaScreen *screen, Window xwindow)
-{
-  MetaCompScreen *info = meta_screen_get_compositor_data (screen);
-
-  if (info == NULL)
-    return NULL;
-
-  return g_hash_table_lookup (info->windows_by_xid,
-                              (gpointer) xwindow);
-}
-
-static MutterWindow *
-find_window_in_display (MetaDisplay *display, Window xwindow)
-{
-  GSList *index;
-  MetaWindow *window = meta_display_lookup_x_window (display, xwindow);
-
-  if (window)
-    {
-      void *priv = meta_window_get_compositor_private (window);
-      if (priv)
-	return priv;
-    }
-
-  for (index = meta_display_get_screens (display);
-       index;
-       index = index->next)
-    {
-      MutterWindow *cw = find_window_for_screen (index->data, xwindow);
-
-      if (cw != NULL)
-        return cw;
-    }
-
-  return NULL;
-}
-
-static MutterWindow *
-find_window_for_child_window_in_display (MetaDisplay *display, Window xwindow)
-{
-  Window ignored1, *ignored2, parent;
-  guint  ignored_children;
-
-  XQueryTree (meta_display_get_xdisplay (display), xwindow, &ignored1,
-              &parent, &ignored2, &ignored_children);
-
-  if (parent != None)
-    return find_window_in_display (display, parent);
-
-  return NULL;
-}
-
 static void sync_actor_stacking (GList *windows);
 
 static void
-mutter_finish_workspace_switch (MetaCompScreen *info)
+meta_finish_workspace_switch (MetaCompScreen *info)
 {
   GList *l;
 
   /* Finish hiding and showing actors for the new workspace */
   for (l = info->windows; l; l = l->next)
-    mutter_window_sync_visibility (l->data);
+    meta_window_actor_sync_visibility (l->data);
 
   /*
    * Fix up stacking order in case the plugin messed it up.
@@ -107,7 +55,7 @@ mutter_finish_workspace_switch (MetaCompScreen *info)
 }
 
 void
-mutter_switch_workspace_completed (MetaScreen *screen)
+meta_switch_workspace_completed (MetaScreen *screen)
 {
   MetaCompScreen *info = meta_screen_get_compositor_data (screen);
 
@@ -120,7 +68,7 @@ mutter_switch_workspace_completed (MetaScreen *screen)
     }
 
   if (!info->switch_workspace_in_progress)
-    mutter_finish_workspace_switch (info);
+    meta_finish_workspace_switch (info);
 }
 
 void
@@ -137,82 +85,72 @@ add_win (MetaWindow *window)
 
   g_return_if_fail (info != NULL);
 
-  mutter_window_new (window);
+  meta_window_actor_new (window);
 
   sync_actor_stacking (info->windows);
 }
 
 static void
 process_damage (MetaCompositor     *compositor,
-                XDamageNotifyEvent *event)
+                XDamageNotifyEvent *event,
+                MetaWindow         *window)
 {
-  MutterWindow *cw = find_window_in_display (compositor->display, event->drawable);
-  if (cw == NULL)
+  MetaWindowActor *window_actor;
+
+  if (window == NULL)
     return;
 
-  mutter_window_process_damage (cw, event);
+  window_actor = META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
+  if (window_actor == NULL)
+    return;
+
+  meta_window_actor_process_damage (window_actor, event);
 }
 
 #ifdef HAVE_SHAPE
 static void
 process_shape (MetaCompositor *compositor,
-               XShapeEvent    *event)
+               XShapeEvent    *event,
+               MetaWindow     *window)
 {
-  MutterWindow *cw = find_window_in_display (compositor->display,
-                                             event->window);
-  if (cw == NULL)
+  MetaWindowActor *window_actor;
+
+  if (window == NULL)
+    return;
+
+  window_actor = META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
+  if (window_actor == NULL)
     return;
 
   if (event->kind == ShapeBounding)
     {
-      mutter_window_update_shape (cw, event->shaped);
+      meta_window_actor_update_shape (window_actor, event->shaped);
     }
 }
 #endif
 
 static void
 process_property_notify (MetaCompositor	*compositor,
-                         XPropertyEvent *event)
+                         XPropertyEvent *event,
+                         MetaWindow     *window)
 {
-  MetaDisplay *display = compositor->display;
+  MetaWindowActor *window_actor;
+
+  if (window == NULL)
+    return;
+
+  window_actor = META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
+  if (window_actor == NULL)
+    return;
 
   /* Check for the opacity changing */
   if (event->atom == compositor->atom_net_wm_window_opacity)
     {
-      MutterWindow *cw = find_window_in_display (display, event->window);
-
-      if (!cw)
-        {
-          /* Applications can set this for their toplevel windows, so
-           * this must be propagated to the window managed by the compositor
-           */
-          cw = find_window_for_child_window_in_display (display,
-                                                        event->window);
-        }
-
-      if (!cw)
-	{
-	  DEBUG_TRACE ("process_property_notify: opacity, early exit\n");
-	  return;
-	}
-
-      mutter_window_update_opacity (cw);
-    }
-  else if (event->atom == meta_display_get_atom (display,
-					       META_ATOM__NET_WM_WINDOW_TYPE))
-    {
-      MutterWindow *cw = find_window_in_display (display, event->window);
-
-      if (!cw)
-	{
-	  DEBUG_TRACE ("process_property_notify: net_wm_type, early exit\n");
-	  return;
-	}
-
-      mutter_window_update_window_type (cw);
-      DEBUG_TRACE ("process_property_notify: net_wm_type\n");
+      meta_window_actor_update_opacity (window_actor);
+      DEBUG_TRACE ("process_property_notify: net_wm_window_opacity\n");
       return;
     }
+
   DEBUG_TRACE ("process_property_notify: unknown\n");
 }
 
@@ -247,8 +185,14 @@ get_output_window (MetaScreen *screen)
   return output;
 }
 
+/**
+ * meta_get_stage_for_screen:
+ * @screen: a #MetaScreen
+ *
+ * Returns: (transfer none): The #ClutterStage for the screen
+ */
 ClutterActor *
-mutter_get_stage_for_screen (MetaScreen *screen)
+meta_get_stage_for_screen (MetaScreen *screen)
 {
   MetaCompScreen *info = meta_screen_get_compositor_data (screen);
 
@@ -258,8 +202,14 @@ mutter_get_stage_for_screen (MetaScreen *screen)
   return info->stage;
 }
 
+/**
+ * meta_get_overlay_group_for_screen:
+ * @screen: a #MetaScreen
+ *
+ * Returns: (transfer none): The overlay group corresponding to @screen
+ */
 ClutterActor *
-mutter_get_overlay_group_for_screen (MetaScreen *screen)
+meta_get_overlay_group_for_screen (MetaScreen *screen)
 {
   MetaCompScreen *info = meta_screen_get_compositor_data (screen);
 
@@ -269,8 +219,14 @@ mutter_get_overlay_group_for_screen (MetaScreen *screen)
   return info->overlay_group;
 }
 
+/**
+ * meta_get_window_group_for_screen:
+ * @screen: a #MetaScreen
+ *
+ * Returns: (transfer none): The window group corresponding to @screen
+ */
 ClutterActor *
-mutter_get_window_group_for_screen (MetaScreen *screen)
+meta_get_window_group_for_screen (MetaScreen *screen)
 {
   MetaCompScreen *info = meta_screen_get_compositor_data (screen);
 
@@ -280,8 +236,14 @@ mutter_get_window_group_for_screen (MetaScreen *screen)
   return info->window_group;
 }
 
+/**
+ * meta_get_window_actors:
+ * @screen: a #MetaScreen
+ *
+ * Returns: (transfer none) (element-type Clutter.Actor): The set of #MetaWindowActor on @screen
+ */
 GList *
-mutter_get_windows (MetaScreen *screen)
+meta_get_window_actors (MetaScreen *screen)
 {
   MetaCompScreen *info = meta_screen_get_compositor_data (screen);
 
@@ -292,7 +254,7 @@ mutter_get_windows (MetaScreen *screen)
 }
 
 static void
-do_set_stage_input_region (MetaScreen *screen,
+do_set_stage_input_region (MetaScreen   *screen,
                            XserverRegion region)
 {
   MetaCompScreen *info = meta_screen_get_compositor_data (screen);
@@ -305,8 +267,8 @@ do_set_stage_input_region (MetaScreen *screen,
 }
 
 void
-mutter_set_stage_input_region (MetaScreen *screen,
-                               XserverRegion region)
+meta_set_stage_input_region (MetaScreen   *screen,
+                             XserverRegion region)
 {
   MetaCompScreen *info = meta_screen_get_compositor_data (screen);
   MetaDisplay  *display = meta_screen_get_display (screen);
@@ -334,7 +296,7 @@ mutter_set_stage_input_region (MetaScreen *screen,
 }
 
 void
-mutter_empty_stage_input_region (MetaScreen *screen)
+meta_empty_stage_input_region (MetaScreen *screen)
 {
   /* Using a static region here is a bit hacky, but Metacity never opens more than
    * one XDisplay, so it works fine. */
@@ -347,7 +309,118 @@ mutter_empty_stage_input_region (MetaScreen *screen)
       region = XFixesCreateRegion (xdpy, NULL, 0);
     }
 
-  mutter_set_stage_input_region (screen, region);
+  meta_set_stage_input_region (screen, region);
+}
+
+gboolean
+meta_begin_modal_for_plugin (MetaScreen       *screen,
+                             MetaPlugin       *plugin,
+                             Window            grab_window,
+                             Cursor            cursor,
+                             MetaModalOptions  options,
+                             guint32           timestamp)
+{
+  /* To some extent this duplicates code in meta_display_begin_grab_op(), but there
+   * are significant differences in how we handle grabs that make it difficult to
+   * merge the two.
+   */
+  MetaDisplay    *display    = meta_screen_get_display (screen);
+  Display        *xdpy       = meta_display_get_xdisplay (display);
+  MetaCompositor *compositor = display->compositor;
+  gboolean pointer_grabbed = FALSE;
+  gboolean keyboard_grabbed = FALSE;
+  int result;
+
+  if (compositor->modal_plugin != NULL || display->grab_op != META_GRAB_OP_NONE)
+    return FALSE;
+
+  if ((options & META_MODAL_POINTER_ALREADY_GRABBED) == 0)
+    {
+      result = XGrabPointer (xdpy, grab_window,
+                             False, /* owner_events */
+                             (ButtonPressMask | ButtonReleaseMask |
+                              EnterWindowMask | LeaveWindowMask | PointerMotionMask),
+                             GrabModeAsync, GrabModeAsync,
+                             None, /* confine to */
+                             cursor,
+                             timestamp);
+      if (result != Success)
+        goto fail;
+
+      pointer_grabbed = TRUE;
+    }
+
+  if ((options & META_MODAL_KEYBOARD_ALREADY_GRABBED) == 0)
+    {
+      result = XGrabKeyboard (xdpy, grab_window,
+                              False, /* owner_events */
+                              GrabModeAsync, GrabModeAsync,
+                              timestamp);
+
+      if (result != Success)
+        goto fail;
+
+      keyboard_grabbed = TRUE;
+    }
+
+  display->grab_op = META_GRAB_OP_COMPOSITOR;
+  display->grab_window = NULL;
+  display->grab_screen = screen;
+  display->grab_have_pointer = TRUE;
+  display->grab_have_keyboard = TRUE;
+
+  compositor->modal_plugin = plugin;
+
+  return TRUE;
+
+ fail:
+  if (pointer_grabbed)
+    XUngrabPointer (xdpy, timestamp);
+  if (keyboard_grabbed)
+    XUngrabKeyboard (xdpy, timestamp);
+
+  return FALSE;
+}
+
+void
+meta_end_modal_for_plugin (MetaScreen     *screen,
+                           MetaPlugin     *plugin,
+                           guint32         timestamp)
+{
+  MetaDisplay    *display    = meta_screen_get_display (screen);
+  Display        *xdpy = meta_display_get_xdisplay (display);
+  MetaCompositor *compositor = display->compositor;
+
+  g_return_if_fail (compositor->modal_plugin == plugin);
+
+  XUngrabPointer (xdpy, timestamp);
+  XUngrabKeyboard (xdpy, timestamp);
+
+  display->grab_op = META_GRAB_OP_NONE;
+  display->grab_window = NULL;
+  display->grab_screen = NULL;
+  display->grab_have_pointer = FALSE;
+  display->grab_have_keyboard = FALSE;
+
+  compositor->modal_plugin = NULL;
+}
+
+/* This is used when reloading plugins to make sure we don't have
+ * a left-over modal grab for this screen.
+ */
+void
+meta_check_end_modal (MetaScreen *screen)
+{
+  MetaDisplay    *display    = meta_screen_get_display (screen);
+  MetaCompositor *compositor = display->compositor;
+
+  if (compositor->modal_plugin &&
+      meta_plugin_get_screen (compositor->modal_plugin) == screen)
+    {
+      meta_end_modal_for_plugin (screen,
+                                   compositor->modal_plugin,
+                                   CurrentTime);
+    }
 }
 
 void
@@ -372,7 +445,7 @@ meta_compositor_manage_screen (MetaCompositor *compositor,
   XCompositeRedirectSubwindows (xdisplay, xroot, CompositeRedirectManual);
   XSync (xdisplay, FALSE);
 
-  if (meta_error_trap_pop_with_return (display, FALSE))
+  if (meta_error_trap_pop_with_return (display))
     {
       g_warning ("Another compositing manager is running on screen %i",
                  screen_number);
@@ -394,7 +467,6 @@ meta_compositor_manage_screen (MetaCompositor *compositor,
 
   info->output = None;
   info->windows = NULL;
-  info->windows_by_xid = g_hash_table_new (g_direct_hash, g_direct_equal);
 
   meta_screen_set_cm_selection (screen);
 
@@ -421,7 +493,7 @@ meta_compositor_manage_screen (MetaCompositor *compositor,
 
   XSelectInput (xdisplay, xwin, event_mask);
 
-  info->window_group = mutter_window_group_new (screen);
+  info->window_group = meta_window_group_new (screen);
   info->overlay_group = clutter_group_new ();
   info->hidden_group = clutter_group_new ();
 
@@ -434,10 +506,18 @@ meta_compositor_manage_screen (MetaCompositor *compositor,
   clutter_actor_hide (info->hidden_group);
 
   info->plugin_mgr =
-    mutter_plugin_manager_new (screen);
-  if (!mutter_plugin_manager_load (info->plugin_mgr))
-    g_critical ("failed to load plugins");
-  if (!mutter_plugin_manager_initialize (info->plugin_mgr))
+    meta_plugin_manager_get (screen);
+
+  if (info->plugin_mgr != meta_plugin_manager_get_default ())
+    {
+      /* The default plugin manager has been initialized during
+       * global preferences load.
+       */
+      if (!meta_plugin_manager_load (info->plugin_mgr))
+        g_critical ("failed to load plugins");
+    }
+
+  if (!meta_plugin_manager_initialize (info->plugin_mgr))
     g_critical ("failed to initialize plugins");
 
   /*
@@ -489,21 +569,21 @@ meta_compositor_add_window (MetaCompositor    *compositor,
 
   add_win (window);
 
-  meta_error_trap_pop (display, FALSE);
+  meta_error_trap_pop (display);
 }
 
 void
 meta_compositor_remove_window (MetaCompositor *compositor,
                                MetaWindow     *window)
 {
-  MutterWindow         *cw     = NULL;
+  MetaWindowActor         *window_actor     = NULL;
 
   DEBUG_TRACE ("meta_compositor_remove_window\n");
-  cw = MUTTER_WINDOW (meta_window_get_compositor_private (window));
-  if (!cw)
+  window_actor = META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
+  if (!window_actor)
     return;
 
-  mutter_window_destroy (cw);
+  meta_window_actor_destroy (window_actor);
 }
 
 void
@@ -513,11 +593,44 @@ meta_compositor_set_updates (MetaCompositor *compositor,
 {
 }
 
+static gboolean
+is_grabbed_event (XEvent *event)
+{
+  switch (event->xany.type)
+    {
+    case ButtonPress:
+    case ButtonRelease:
+    case EnterNotify:
+    case LeaveNotify:
+    case MotionNotify:
+    case KeyPress:
+    case KeyRelease:
+      return TRUE;
+    }
+
+  return FALSE;
+}
+/**
+ * meta_compositor_process_event: (skip)
+ *
+ */
 gboolean
 meta_compositor_process_event (MetaCompositor *compositor,
                                XEvent         *event,
                                MetaWindow     *window)
 {
+  if (compositor->modal_plugin && is_grabbed_event (event))
+    {
+      MetaPluginClass *klass = META_PLUGIN_GET_CLASS (compositor->modal_plugin);
+
+      if (klass->xevent_filter)
+        klass->xevent_filter (compositor->modal_plugin, event);
+
+      /* We always consume events even if the plugin says it didn't handle them;
+       * exclusive is exclusive */
+      return TRUE;
+    }
+
   if (window)
     {
       MetaCompScreen *info;
@@ -526,7 +639,7 @@ meta_compositor_process_event (MetaCompositor *compositor,
       screen = meta_window_get_screen (window);
       info = meta_screen_get_compositor_data (screen);
 
-      if (mutter_plugin_manager_xevent_filter (info->plugin_mgr, event))
+      if (meta_plugin_manager_xevent_filter (info->plugin_mgr, event))
 	{
 	  DEBUG_TRACE ("meta_compositor_process_event (filtered,window==NULL)\n");
 	  return TRUE;
@@ -545,7 +658,7 @@ meta_compositor_process_event (MetaCompositor *compositor,
 
 	  info = meta_screen_get_compositor_data (screen);
 
-	  if (mutter_plugin_manager_xevent_filter (info->plugin_mgr, event))
+	  if (meta_plugin_manager_xevent_filter (info->plugin_mgr, event))
 	    {
 	      DEBUG_TRACE ("meta_compositor_process_event (filtered,window==NULL)\n");
 	      return TRUE;
@@ -555,38 +668,37 @@ meta_compositor_process_event (MetaCompositor *compositor,
 	}
     }
 
-  /*
-   * This trap is so that none of the compositor functions cause
-   * X errors. This is really a hack, but I'm afraid I don't understand
-   * enough about Metacity/X to know how else you are supposed to do it
-   */
-
-
-  meta_error_trap_push (compositor->display);
   switch (event->type)
     {
     case PropertyNotify:
-      process_property_notify (compositor, (XPropertyEvent *) event);
+      process_property_notify (compositor, (XPropertyEvent *) event, window);
       break;
 
     default:
       if (event->type == meta_display_get_damage_event_base (compositor->display) + XDamageNotify)
         {
+          /* Core code doesn't handle damage events, so we need to extract the MetaWindow
+           * ourselves
+           */
+          if (window == NULL)
+            {
+              Window xwin = ((XDamageNotifyEvent *) event)->drawable;
+              window = meta_display_lookup_x_window (compositor->display, xwin);
+            }
+
 	  DEBUG_TRACE ("meta_compositor_process_event (process_damage)\n");
-          process_damage (compositor, (XDamageNotifyEvent *) event);
+          process_damage (compositor, (XDamageNotifyEvent *) event, window);
         }
 #ifdef HAVE_SHAPE
       else if (event->type == meta_display_get_shape_event_base (compositor->display) + ShapeNotify)
 	{
 	  DEBUG_TRACE ("meta_compositor_process_event (process_shape)\n");
-	  process_shape (compositor, (XShapeEvent *) event);
+	  process_shape (compositor, (XShapeEvent *) event, window);
 	}
 #endif /* HAVE_SHAPE */
       break;
     }
 
-  meta_error_trap_pop (compositor->display, FALSE);
-
   /* Clutter needs to know about MapNotify events otherwise it will
      think the stage is invisible */
   if (event->type == MapNotify)
@@ -604,12 +716,12 @@ meta_compositor_show_window (MetaCompositor *compositor,
 			     MetaWindow	    *window,
                              MetaCompEffect  effect)
 {
-  MutterWindow *cw = MUTTER_WINDOW (meta_window_get_compositor_private (window));
+  MetaWindowActor *window_actor = META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
   DEBUG_TRACE ("meta_compositor_show_window\n");
-  if (!cw)
+  if (!window_actor)
     return;
 
-  mutter_window_show (cw, effect);
+  meta_window_actor_show (window_actor, effect);
 }
 
 void
@@ -617,12 +729,12 @@ meta_compositor_hide_window (MetaCompositor *compositor,
                              MetaWindow     *window,
                              MetaCompEffect  effect)
 {
-  MutterWindow *cw = MUTTER_WINDOW (meta_window_get_compositor_private (window));
+  MetaWindowActor *window_actor = META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
   DEBUG_TRACE ("meta_compositor_hide_window\n");
-  if (!cw)
+  if (!window_actor)
     return;
 
-  mutter_window_hide (cw, effect);
+  meta_window_actor_hide (window_actor, effect);
 }
 
 void
@@ -631,12 +743,12 @@ meta_compositor_maximize_window (MetaCompositor    *compositor,
 				 MetaRectangle	   *old_rect,
 				 MetaRectangle	   *new_rect)
 {
-  MutterWindow	 *cw = MUTTER_WINDOW (meta_window_get_compositor_private (window));
+  MetaWindowActor *window_actor = META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
   DEBUG_TRACE ("meta_compositor_maximize_window\n");
-  if (!cw)
+  if (!window_actor)
     return;
 
-  mutter_window_maximize (cw, old_rect, new_rect);
+  meta_window_actor_maximize (window_actor, old_rect, new_rect);
 }
 
 void
@@ -645,12 +757,12 @@ meta_compositor_unmaximize_window (MetaCompositor    *compositor,
 				   MetaRectangle     *old_rect,
 				   MetaRectangle     *new_rect)
 {
-  MutterWindow	 *cw = MUTTER_WINDOW (meta_window_get_compositor_private (window));
+  MetaWindowActor *window_actor = META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
   DEBUG_TRACE ("meta_compositor_unmaximize_window\n");
-  if (!cw)
+  if (!window_actor)
     return;
 
-  mutter_window_unmaximize (cw, old_rect, new_rect);
+  meta_window_actor_unmaximize (window_actor, old_rect, new_rect);
 }
 
 void
@@ -663,7 +775,7 @@ meta_compositor_update_workspace_geometry (MetaCompositor *compositor,
    */
   MetaScreen     *screen = meta_workspace_get_screen (workspace);
   MetaCompScreen *info;
-  MutterPluginManager *mgr;
+  MetaPluginManager *mgr;
 
   DEBUG_TRACE ("meta_compositor_update_workspace_geometry\n");
   info = meta_screen_get_compositor_data (screen);
@@ -672,7 +784,7 @@ meta_compositor_update_workspace_geometry (MetaCompositor *compositor,
   if (!mgr || !workspace)
     return;
 
-  mutter_plugin_manager_update_workspace (mgr, workspace);
+  meta_plugin_manager_update_workspace (mgr, workspace);
 #endif
 }
 
@@ -698,8 +810,7 @@ meta_compositor_switch_workspace (MetaCompositor     *compositor,
   info->switch_workspace_in_progress++;
 
   if (!info->plugin_mgr ||
-      !mutter_plugin_manager_switch_workspace (info->plugin_mgr,
-					       (const GList **)&info->windows,
+      !meta_plugin_manager_switch_workspace (info->plugin_mgr,
 					       from_indx,
 					       to_indx,
 					       direction))
@@ -711,7 +822,7 @@ meta_compositor_switch_workspace (MetaCompositor     *compositor,
        * necessarily change during the window hiding/unhiding, only their
        * relative position toward the destkop window.
        */
-      mutter_finish_workspace_switch (info);
+      meta_finish_workspace_switch (info);
     }
 }
 
@@ -724,9 +835,9 @@ sync_actor_stacking (GList *windows)
 
   for (tmp = g_list_last (windows); tmp != NULL; tmp = tmp->prev)
     {
-      MutterWindow *cw = tmp->data;
+      MetaWindowActor *window_actor = tmp->data;
 
-      clutter_actor_lower_bottom (CLUTTER_ACTOR (cw));
+      clutter_actor_lower_bottom (CLUTTER_ACTOR (window_actor));
     }
 }
 
@@ -748,12 +859,12 @@ meta_compositor_sync_stack (MetaCompositor  *compositor,
 
   /* Sources: first window is the highest */
   stack = g_list_copy (stack); /* The new stack of MetaWindow */
-  old_stack = g_list_reverse (info->windows); /* The old stack of MutterWindow */
+  old_stack = g_list_reverse (info->windows); /* The old stack of MetaWindowActor */
   info->windows = NULL;
 
   while (TRUE)
     {
-      MutterWindow *old_actor = NULL, *stack_actor = NULL, *actor;
+      MetaWindowActor *old_actor = NULL, *stack_actor = NULL, *actor;
       MetaWindow *old_window = NULL, *stack_window = NULL, *window;
 
       /* Find the remaining top actor in our existing stack (ignoring
@@ -761,10 +872,10 @@ meta_compositor_sync_stack (MetaCompositor  *compositor,
       while (old_stack)
         {
           old_actor = old_stack->data;
-          old_window = mutter_window_get_meta_window (old_actor);
+          old_window = meta_window_actor_get_meta_window (old_actor);
 
           if (old_window->hidden &&
-              !mutter_window_effect_in_progress (old_actor))
+              !meta_window_actor_effect_in_progress (old_actor))
             old_stack = g_list_delete_link (old_stack, old_stack);
           else
             break;
@@ -774,10 +885,10 @@ meta_compositor_sync_stack (MetaCompositor  *compositor,
       while (stack)
         {
           stack_window = stack->data;
-          stack_actor = MUTTER_WINDOW (meta_window_get_compositor_private (stack_window));
+          stack_actor = META_WINDOW_ACTOR (meta_window_get_compositor_private (stack_window));
           if (!stack_actor)
             {
-              meta_verbose ("Failed to find corresponding MutterWindow "
+              meta_verbose ("Failed to find corresponding MetaWindowActor "
                             "for window %s\n", meta_window_get_description (stack_window));
               stack = g_list_delete_link (stack, stack);
             }
@@ -823,41 +934,41 @@ void
 meta_compositor_window_mapped (MetaCompositor *compositor,
                                MetaWindow     *window)
 {
-  MutterWindow *cw = MUTTER_WINDOW (meta_window_get_compositor_private (window));
+  MetaWindowActor *window_actor = META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
   DEBUG_TRACE ("meta_compositor_window_mapped\n");
-  if (!cw)
+  if (!window_actor)
     return;
 
-  mutter_window_mapped (cw);
+  meta_window_actor_mapped (window_actor);
 }
 
 void
 meta_compositor_window_unmapped (MetaCompositor *compositor,
                                  MetaWindow     *window)
 {
-  MutterWindow *cw = MUTTER_WINDOW (meta_window_get_compositor_private (window));
+  MetaWindowActor *window_actor = META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
   DEBUG_TRACE ("meta_compositor_window_unmapped\n");
-  if (!cw)
+  if (!window_actor)
     return;
 
-  mutter_window_unmapped (cw);
+  meta_window_actor_unmapped (window_actor);
 }
 
 void
 meta_compositor_sync_window_geometry (MetaCompositor *compositor,
 				      MetaWindow *window)
 {
-  MutterWindow	 *cw = MUTTER_WINDOW (meta_window_get_compositor_private (window));
-  MetaScreen	 *screen = meta_window_get_screen (window);
-  MetaCompScreen *info = meta_screen_get_compositor_data (screen);
+  MetaWindowActor *window_actor = META_WINDOW_ACTOR (meta_window_get_compositor_private (window));
+  MetaScreen      *screen = meta_window_get_screen (window);
+  MetaCompScreen  *info = meta_screen_get_compositor_data (screen);
 
   DEBUG_TRACE ("meta_compositor_sync_window_geometry\n");
   g_return_if_fail (info);
 
-  if (!cw)
+  if (!window_actor)
     return;
 
-  mutter_window_sync_actor_position (cw);
+  meta_window_actor_sync_actor_position (window_actor);
 }
 
 void
@@ -884,11 +995,11 @@ pre_paint_windows (MetaCompScreen *info)
   GList *l;
 
   for (l = info->windows; l; l = l->next)
-    mutter_window_pre_paint (l->data);
+    meta_window_actor_pre_paint (l->data);
 }
 
 static gboolean
-mutter_repaint_func (gpointer data)
+meta_repaint_func (gpointer data)
 {
   MetaCompositor *compositor = data;
   GSList *screens = meta_display_get_screens (compositor->display);
@@ -907,6 +1018,30 @@ mutter_repaint_func (gpointer data)
   return TRUE;
 }
 
+static void
+on_shadow_factory_changed (MetaShadowFactory *factory,
+                           MetaCompositor    *compositor)
+{
+  GSList *screens = meta_display_get_screens (compositor->display);
+  GList *l;
+  GSList *sl;
+
+  for (sl = screens; sl; sl = sl->next)
+    {
+      MetaScreen *screen = sl->data;
+      MetaCompScreen *info = meta_screen_get_compositor_data (screen);
+      if (!info)
+        continue;
+
+      for (l = info->windows; l; l = l->next)
+        meta_window_actor_invalidate_shadow (l->data);
+    }
+}
+
+/**
+ * meta_compositor_new: (skip)
+ *
+ */
 MetaCompositor *
 meta_compositor_new (MetaDisplay *display)
 {
@@ -926,26 +1061,35 @@ meta_compositor_new (MetaDisplay *display)
 
   compositor->display = display;
 
-  if (g_getenv("MUTTER_DISABLE_MIPMAPS"))
+  if (g_getenv("META_DISABLE_MIPMAPS"))
     compositor->no_mipmaps = TRUE;
 
   meta_verbose ("Creating %d atoms\n", (int) G_N_ELEMENTS (atom_names));
   XInternAtoms (xdisplay, atom_names, G_N_ELEMENTS (atom_names),
                 False, atoms);
 
+  g_signal_connect (meta_shadow_factory_get_default (),
+                    "changed",
+                    G_CALLBACK (on_shadow_factory_changed),
+                    compositor);
+
   compositor->atom_x_root_pixmap = atoms[0];
   compositor->atom_x_set_root = atoms[1];
   compositor->atom_net_wm_window_opacity = atoms[2];
 
-  compositor->repaint_func_id = clutter_threads_add_repaint_func (mutter_repaint_func,
+  compositor->repaint_func_id = clutter_threads_add_repaint_func (meta_repaint_func,
                                                                   compositor,
                                                                   NULL);
 
   return compositor;
 }
 
+/**
+ * meta_get_overlay_window: (skip)
+ *
+ */
 Window
-mutter_get_overlay_window (MetaScreen *screen)
+meta_get_overlay_window (MetaScreen *screen)
 {
   MetaCompScreen *info = meta_screen_get_compositor_data (screen);
 

src/compositor/meta-module.c

@@ -21,8 +21,8 @@
  * 02111-1307, USA.
  */
 
-#include "mutter-plugin.h"
-#include "mutter-module.h"
+#include "meta-plugin.h"
+#include "meta-module.h"
 
 #include <gmodule.h>
 
@@ -32,23 +32,23 @@ enum
   PROP_PATH,
 };
 
-struct _MutterModulePrivate
+struct _MetaModulePrivate
 {
   GModule      *lib;
   gchar        *path;
   GType         plugin_type;
 };
 
-#define MUTTER_MODULE_GET_PRIVATE(obj) \
-(G_TYPE_INSTANCE_GET_PRIVATE ((obj), MUTTER_TYPE_MODULE, MutterModulePrivate))
+#define META_MODULE_GET_PRIVATE(obj) \
+(G_TYPE_INSTANCE_GET_PRIVATE ((obj), META_TYPE_MODULE, MetaModulePrivate))
 
-G_DEFINE_TYPE (MutterModule, mutter_module, G_TYPE_TYPE_MODULE);
+G_DEFINE_TYPE (MetaModule, meta_module, G_TYPE_TYPE_MODULE);
 
 static gboolean
-mutter_module_load (GTypeModule *gmodule)
+meta_module_load (GTypeModule *gmodule)
 {
-  MutterModulePrivate  *priv = MUTTER_MODULE (gmodule)->priv;
-  MutterPluginVersion  *info = NULL;
+  MetaModulePrivate  *priv = META_MODULE (gmodule)->priv;
+  MetaPluginVersion  *info = NULL;
   GType                (*register_type) (GTypeModule *) = NULL;
 
   if (priv->lib && priv->plugin_type)
@@ -64,9 +64,9 @@ mutter_module_load (GTypeModule *gmodule)
       return FALSE;
     }
 
-  if (g_module_symbol (priv->lib, "mutter_plugin_version",
+  if (g_module_symbol (priv->lib, "meta_plugin_version",
                        (gpointer *)(void *)&info) &&
-      g_module_symbol (priv->lib, "mutter_plugin_register_type",
+      g_module_symbol (priv->lib, "meta_plugin_register_type",
 		       (gpointer *)(void *)&register_type) &&
       info && register_type)
     {
@@ -97,9 +97,9 @@ mutter_module_load (GTypeModule *gmodule)
 }
 
 static void
-mutter_module_unload (GTypeModule *gmodule)
+meta_module_unload (GTypeModule *gmodule)
 {
-  MutterModulePrivate *priv = MUTTER_MODULE (gmodule)->priv;
+  MetaModulePrivate *priv = META_MODULE (gmodule)->priv;
 
   g_module_close (priv->lib);
 
@@ -108,29 +108,29 @@ mutter_module_unload (GTypeModule *gmodule)
 }
 
 static void
-mutter_module_dispose (GObject *object)
+meta_module_dispose (GObject *object)
 {
-  G_OBJECT_CLASS (mutter_module_parent_class)->dispose (object);
+  G_OBJECT_CLASS (meta_module_parent_class)->dispose (object);
 }
 
 static void
-mutter_module_finalize (GObject *object)
+meta_module_finalize (GObject *object)
 {
-  MutterModulePrivate *priv = MUTTER_MODULE (object)->priv;
+  MetaModulePrivate *priv = META_MODULE (object)->priv;
 
   g_free (priv->path);
   priv->path = NULL;
 
-  G_OBJECT_CLASS (mutter_module_parent_class)->finalize (object);
+  G_OBJECT_CLASS (meta_module_parent_class)->finalize (object);
 }
 
 static void
-mutter_module_set_property (GObject      *object,
-			    guint         prop_id,
-			    const GValue *value,
-			    GParamSpec   *pspec)
+meta_module_set_property (GObject      *object,
+                          guint         prop_id,
+                          const GValue *value,
+                          GParamSpec   *pspec)
 {
-  MutterModulePrivate *priv = MUTTER_MODULE (object)->priv;
+  MetaModulePrivate *priv = META_MODULE (object)->priv;
 
   switch (prop_id)
     {
@@ -145,12 +145,12 @@ mutter_module_set_property (GObject      *object,
 }
 
 static void
-mutter_module_get_property (GObject    *object,
-			    guint       prop_id,
-			    GValue     *value,
-			    GParamSpec *pspec)
+meta_module_get_property (GObject    *object,
+                          guint       prop_id,
+                          GValue     *value,
+                          GParamSpec *pspec)
 {
-  MutterModulePrivate *priv = MUTTER_MODULE (object)->priv;
+  MetaModulePrivate *priv = META_MODULE (object)->priv;
 
   switch (prop_id)
     {
@@ -164,18 +164,18 @@ mutter_module_get_property (GObject    *object,
 }
 
 static void
-mutter_module_class_init (MutterModuleClass *klass)
+meta_module_class_init (MetaModuleClass *klass)
 {
   GObjectClass     *gobject_class = G_OBJECT_CLASS (klass);
   GTypeModuleClass *gmodule_class = G_TYPE_MODULE_CLASS (klass);
 
-  gobject_class->finalize     = mutter_module_finalize;
-  gobject_class->dispose      = mutter_module_dispose;
-  gobject_class->set_property = mutter_module_set_property;
-  gobject_class->get_property = mutter_module_get_property;
+  gobject_class->finalize     = meta_module_finalize;
+  gobject_class->dispose      = meta_module_dispose;
+  gobject_class->set_property = meta_module_set_property;
+  gobject_class->get_property = meta_module_get_property;
 
-  gmodule_class->load         = mutter_module_load;
-  gmodule_class->unload       = mutter_module_unload;
+  gmodule_class->load         = meta_module_load;
+  gmodule_class->unload       = meta_module_unload;
 
   g_object_class_install_property (gobject_class,
 				   PROP_PATH,
@@ -186,22 +186,22 @@ mutter_module_class_init (MutterModuleClass *klass)
 							G_PARAM_READWRITE |
 						      G_PARAM_CONSTRUCT_ONLY));
 
-  g_type_class_add_private (gobject_class, sizeof (MutterModulePrivate));
+  g_type_class_add_private (gobject_class, sizeof (MetaModulePrivate));
 }
 
 static void
-mutter_module_init (MutterModule *self)
+meta_module_init (MetaModule *self)
 {
-  MutterModulePrivate *priv;
+  MetaModulePrivate *priv;
 
-  self->priv = priv = MUTTER_MODULE_GET_PRIVATE (self);
+  self->priv = priv = META_MODULE_GET_PRIVATE (self);
 
 }
 
 GType
-mutter_module_get_plugin_type (MutterModule *module)
+meta_module_get_plugin_type (MetaModule *module)
 {
-  MutterModulePrivate *priv = MUTTER_MODULE (module)->priv;
+  MetaModulePrivate *priv = META_MODULE (module)->priv;
 
   return priv->plugin_type;
 }

src/compositor/meta-module.h

@@ -21,37 +21,37 @@
  * 02111-1307, USA.
  */
 
-#ifndef MUTTER_MODULE_H_
-#define MUTTER_MODULE_H_
+#ifndef META_MODULE_H_
+#define META_MODULE_H_
 
 #include <glib-object.h>
 
-#define MUTTER_TYPE_MODULE            (mutter_module_get_type ())
-#define MUTTER_MODULE(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), MUTTER_TYPE_MODULE, MutterModule))
-#define MUTTER_MODULE_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  MUTTER_TYPE_MODULE, MutterModuleClass))
-#define MUTTER_IS_MODULE(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), MUTTER_MODULE_TYPE))
-#define MUTTER_IS_MODULE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  MUTTER_TYPE_MODULE))
-#define MUTTER_MODULE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  MUTTER_TYPE_MODULE, MutterModuleClass))
+#define META_TYPE_MODULE            (meta_module_get_type ())
+#define META_MODULE(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_MODULE, MetaModule))
+#define META_MODULE_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  META_TYPE_MODULE, MetaModuleClass))
+#define META_IS_MODULE(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_MODULE_TYPE))
+#define META_IS_MODULE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  META_TYPE_MODULE))
+#define META_MODULE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  META_TYPE_MODULE, MetaModuleClass))
 
-typedef struct _MutterModule        MutterModule;
-typedef struct _MutterModuleClass   MutterModuleClass;
-typedef struct _MutterModulePrivate MutterModulePrivate;
+typedef struct _MetaModule        MetaModule;
+typedef struct _MetaModuleClass   MetaModuleClass;
+typedef struct _MetaModulePrivate MetaModulePrivate;
 
-struct _MutterModule
+struct _MetaModule
 {
   GTypeModule parent;
 
-  MutterModulePrivate *priv;
+  MetaModulePrivate *priv;
 };
 
-struct _MutterModuleClass
+struct _MetaModuleClass
 {
   GTypeModuleClass parent_class;
 };
 
 
-GType mutter_module_get_type (void);
+GType meta_module_get_type (void);
 
-GType mutter_module_get_plugin_type (MutterModule *module);
+GType meta_module_get_plugin_type (MetaModule *module);
 
 #endif

src/compositor/meta-plugin-manager.c

@@ -22,11 +22,13 @@
  */
 
 #include "config.h"
-#include "mutter-plugin-manager.h"
+#include "compositor-private.h"
+#include "meta-plugin-manager.h"
 #include "prefs.h"
 #include "errors.h"
 #include "workspace.h"
-#include "mutter-module.h"
+#include "meta-module.h"
+#include "../core/window-private.h"
 
 #include <string.h>
 
@@ -37,37 +39,38 @@
  */
 static GHashTable *plugin_modules = NULL;
 
-static gboolean mutter_plugin_manager_reload (MutterPluginManager *plugin_mgr);
+/*
+ * We have one "default plugin manager" that acts for the first screen,
+ * but also can be used before we open any screens, and additional
+ * plugin managers for each screen. (This is ugly. Probably we should
+ * have one plugin manager and only make the plugins per-screen.)
+ */
 
-struct MutterPluginManager
+static MetaPluginManager *default_plugin_manager;
+
+static gboolean meta_plugin_manager_reload (MetaPluginManager *plugin_mgr);
+
+struct MetaPluginManager
 {
   MetaScreen   *screen;
 
-  GList /* MutterPluginPending */ *pending_plugin_modules; /* Plugins not yet fully loaded */
-  GList /* MutterPlugin */       *plugins;  /* TODO -- maybe use hash table */
-  GList                          *unload;  /* Plugins that are disabled and pending unload */
+  GList /* MetaPlugin */       *plugins;  /* TODO -- maybe use hash table */
+  GList                        *unload;  /* Plugins that are disabled and pending unload */
 
   guint         idle_unload_id;
 };
 
-typedef struct MutterPluginPending
-{
-  MutterModule *module;
-  char *path;
-  char *params;
-} MutterPluginPending;
-
 /*
  * Checks that the plugin is compatible with the WM and sets up the plugin
  * struct.
  */
-static MutterPlugin *
-mutter_plugin_load (MutterPluginManager *mgr,
-                    MutterModule        *module,
-                    const gchar         *params)
+static MetaPlugin *
+meta_plugin_load (MetaPluginManager *mgr,
+                  MetaModule        *module,
+                  const gchar       *params)
 {
-  MutterPlugin *plugin = NULL;
-  GType         plugin_type = mutter_module_get_plugin_type (module);
+  MetaPlugin *plugin = NULL;
+  GType         plugin_type = meta_module_get_plugin_type (module);
 
   if (!plugin_type)
     {
@@ -76,7 +79,6 @@ mutter_plugin_load (MutterPluginManager *mgr,
     }
 
   plugin = g_object_new (plugin_type,
-                         "screen", mgr->screen,
                          "params", params,
                          NULL);
 
@@ -89,9 +91,9 @@ mutter_plugin_load (MutterPluginManager *mgr,
  * removal later.
  */
 static gboolean
-mutter_plugin_unload (MutterPlugin *plugin)
+meta_plugin_unload (MetaPlugin *plugin)
 {
-  if (mutter_plugin_running (plugin))
+  if (meta_plugin_running (plugin))
     {
       g_object_set (plugin, "disabled", TRUE, NULL);
       return FALSE;
@@ -107,16 +109,16 @@ mutter_plugin_unload (MutterPlugin *plugin)
  * pending for removal.
  */
 static gboolean
-mutter_plugin_manager_idle_unload (MutterPluginManager *plugin_mgr)
+meta_plugin_manager_idle_unload (MetaPluginManager *plugin_mgr)
 {
   GList *l = plugin_mgr->unload;
   gboolean dont_remove = TRUE;
 
   while (l)
     {
-      MutterPlugin *plugin = l->data;
+      MetaPlugin *plugin = l->data;
 
-      if (mutter_plugin_unload (plugin))
+      if (meta_plugin_unload (plugin))
         {
           /* Remove from list */
           GList *p = l->prev;
@@ -152,23 +154,23 @@ mutter_plugin_manager_idle_unload (MutterPluginManager *plugin_mgr)
  * Unloads all plugins
  */
 static void
-mutter_plugin_manager_unload (MutterPluginManager *plugin_mgr)
+meta_plugin_manager_unload (MetaPluginManager *plugin_mgr)
 {
   GList *plugins = plugin_mgr->plugins;
 
   while (plugins)
     {
-      MutterPlugin *plugin = plugins->data;
+      MetaPlugin *plugin = plugins->data;
 
       /* If the plugin could not be removed, move it to the unload list */
-      if (!mutter_plugin_unload (plugin))
+      if (!meta_plugin_unload (plugin))
         {
           plugin_mgr->unload = g_list_prepend (plugin_mgr->unload, plugin);
 
           if (!plugin_mgr->idle_unload_id)
             {
               plugin_mgr->idle_unload_id = g_idle_add ((GSourceFunc)
-                            mutter_plugin_manager_idle_unload,
+                            meta_plugin_manager_idle_unload,
                             plugin_mgr);
             }
         }
@@ -184,21 +186,21 @@ static void
 prefs_changed_callback (MetaPreference pref,
                         void          *data)
 {
-  MutterPluginManager *plugin_mgr = data;
+  MetaPluginManager *plugin_mgr = data;
 
   if (pref == META_PREF_CLUTTER_PLUGINS)
     {
-      mutter_plugin_manager_reload (plugin_mgr);
+      meta_plugin_manager_reload (plugin_mgr);
     }
 }
 
-static MutterModule *
-mutter_plugin_manager_get_module (const gchar *path)
+static MetaModule *
+meta_plugin_manager_get_module (const gchar *path)
 {
-  MutterModule *module = g_hash_table_lookup (plugin_modules, path);
+  MetaModule *module = g_hash_table_lookup (plugin_modules, path);
 
   if (!module &&
-      (module = g_object_new (MUTTER_TYPE_MODULE, "path", path, NULL)))
+      (module = g_object_new (META_TYPE_MODULE, "path", path, NULL)))
     {
       g_hash_table_insert (plugin_modules, g_strdup (path), module);
     }
@@ -210,7 +212,7 @@ mutter_plugin_manager_get_module (const gchar *path)
  * Loads all plugins listed in gconf registry.
  */
 gboolean
-mutter_plugin_manager_load (MutterPluginManager *plugin_mgr)
+meta_plugin_manager_load (MetaPluginManager *plugin_mgr)
 {
   const gchar *dpath = MUTTER_PLUGIN_DIR "/";
   GSList      *plugins, *fallback = NULL;
@@ -235,7 +237,7 @@ mutter_plugin_manager_load (MutterPluginManager *plugin_mgr)
 
       if (plugin_string)
         {
-          MutterModule *module;
+          MetaModule *module;
           gchar        *path;
 
           params = strchr (plugin_string, ':');
@@ -251,7 +253,7 @@ mutter_plugin_manager_load (MutterPluginManager *plugin_mgr)
           else
             path = g_strconcat (dpath, plugin_string, ".so", NULL);
 
-          module = mutter_plugin_manager_get_module (path);
+          module = meta_plugin_manager_get_module (path);
 
           if (module)
             {
@@ -268,12 +270,14 @@ mutter_plugin_manager_load (MutterPluginManager *plugin_mgr)
 
               if (use_succeeded)
                 {
-                  MutterPluginPending *pending = g_new0 (MutterPluginPending, 1);
-                  pending->module = module;
-                  pending->path = g_strdup (path);
-                  pending->params = g_strdup (params);
-                  plugin_mgr->pending_plugin_modules =
-                    g_list_prepend (plugin_mgr->pending_plugin_modules, pending);
+                  MetaPlugin *plugin = meta_plugin_load (plugin_mgr, module, params);
+
+                  if (plugin)
+                    plugin_mgr->plugins = g_list_prepend (plugin_mgr->plugins, plugin);
+                  else
+                    g_warning ("Plugin load for [%s] failed", path);
+
+                  g_type_module_unuse (G_TYPE_MODULE (module));
                 }
             }
           else
@@ -291,7 +295,7 @@ mutter_plugin_manager_load (MutterPluginManager *plugin_mgr)
   if (fallback)
     g_slist_free (fallback);
 
-  if (plugin_mgr->pending_plugin_modules != NULL)
+  if (plugin_mgr->plugins != NULL)
     {
       meta_prefs_add_listener (prefs_changed_callback, plugin_mgr);
       return TRUE;
@@ -301,31 +305,23 @@ mutter_plugin_manager_load (MutterPluginManager *plugin_mgr)
 }
 
 gboolean
-mutter_plugin_manager_initialize (MutterPluginManager *plugin_mgr)
+meta_plugin_manager_initialize (MetaPluginManager *plugin_mgr)
 {
   GList *iter;
 
-  for (iter = plugin_mgr->pending_plugin_modules; iter; iter = iter->next)
+  for (iter = plugin_mgr->plugins; iter; iter = iter->next)
     {
-      MutterPluginPending *pending = (MutterPluginPending*) iter->data;
-      MutterPlugin *p;
+      MetaPlugin *plugin = (MetaPlugin*) iter->data;
+      MetaPluginClass *klass = META_PLUGIN_GET_CLASS (plugin);
 
-      if ((p = mutter_plugin_load (plugin_mgr, pending->module, pending->params)))
-        {
-          plugin_mgr->plugins = g_list_prepend (plugin_mgr->plugins, p);
-        }
-      else
-        {
-          g_warning ("Plugin load for [%s] failed", pending->path);
-        }
+      g_object_set (plugin,
+                    "screen", plugin_mgr->screen,
+                    NULL);
 
-      g_type_module_unuse (G_TYPE_MODULE (pending->module));
-      g_free (pending->path);
-      g_free (pending->params);
-      g_free (pending);
+      if (klass->start)
+        klass->start (plugin);
     }
-  g_list_free (plugin_mgr->pending_plugin_modules);
-  plugin_mgr->pending_plugin_modules = NULL;
+
   return TRUE;
 }
 
@@ -333,20 +329,24 @@ mutter_plugin_manager_initialize (MutterPluginManager *plugin_mgr)
  * Reloads all plugins
  */
 static gboolean
-mutter_plugin_manager_reload (MutterPluginManager *plugin_mgr)
+meta_plugin_manager_reload (MetaPluginManager *plugin_mgr)
 {
   /* TODO -- brute force; should we build a list of plugins to load and list of
    * plugins to unload? We are probably not going to have large numbers of
    * plugins loaded at the same time, so it might not be worth it.
    */
-  mutter_plugin_manager_unload (plugin_mgr);
-  return mutter_plugin_manager_load (plugin_mgr);
+
+  /* Prevent stale grabs on unloaded plugins */
+  meta_check_end_modal (plugin_mgr->screen);
+
+  meta_plugin_manager_unload (plugin_mgr);
+  return meta_plugin_manager_load (plugin_mgr);
 }
 
-MutterPluginManager *
-mutter_plugin_manager_new (MetaScreen *screen)
+static MetaPluginManager *
+meta_plugin_manager_new (MetaScreen *screen)
 {
-  MutterPluginManager *plugin_mgr;
+  MetaPluginManager *plugin_mgr;
 
   if (!plugin_modules)
     {
@@ -354,37 +354,91 @@ mutter_plugin_manager_new (MetaScreen *screen)
                                               NULL);
     }
 
-  plugin_mgr = g_new0 (MutterPluginManager, 1);
+  plugin_mgr = g_new0 (MetaPluginManager, 1);
 
   plugin_mgr->screen        = screen;
 
+  if (screen)
+    g_object_set_data (G_OBJECT (screen), "meta-plugin-manager", plugin_mgr);
+
   return plugin_mgr;
 }
 
+MetaPluginManager *
+meta_plugin_manager_get_default (void)
+{
+  if (!default_plugin_manager)
+    {
+      default_plugin_manager = meta_plugin_manager_new (NULL);
+    }
+
+  return default_plugin_manager;
+}
+
+MetaPluginManager *
+meta_plugin_manager_get (MetaScreen *screen)
+{
+  MetaPluginManager *plugin_mgr;
+
+  plugin_mgr = g_object_get_data (G_OBJECT (screen), "meta-plugin-manager");
+  if (plugin_mgr)
+    return plugin_mgr;
+
+  if (!default_plugin_manager)
+    meta_plugin_manager_get_default ();
+
+  if (!default_plugin_manager->screen)
+    {
+      /* The default plugin manager is so far unused, we can recycle it */
+      default_plugin_manager->screen = screen;
+      g_object_set_data (G_OBJECT (screen), "meta-plugin-manager", default_plugin_manager);
+
+      return default_plugin_manager;
+    }
+  else
+    {
+      return meta_plugin_manager_new (screen);
+    }
+}
+
 static void
-mutter_plugin_manager_kill_effect (MutterPluginManager *plugin_mgr,
-                                   MutterWindow        *actor,
-                                   unsigned long        events)
+meta_plugin_manager_kill_window_effects (MetaPluginManager *plugin_mgr,
+                                         MetaWindowActor   *actor)
 {
   GList *l = plugin_mgr->plugins;
 
   while (l)
     {
-      MutterPlugin        *plugin = l->data;
-      MutterPluginClass   *klass = MUTTER_PLUGIN_GET_CLASS (plugin);
+      MetaPlugin        *plugin = l->data;
+      MetaPluginClass   *klass = META_PLUGIN_GET_CLASS (plugin);
 
-      if (!mutter_plugin_disabled (plugin)
-	  && (mutter_plugin_features (plugin) & events)
-	  && klass->kill_effect)
-        klass->kill_effect (plugin, actor, events);
+      if (!meta_plugin_disabled (plugin)
+	  && klass->kill_window_effects)
+        klass->kill_window_effects (plugin, actor);
+
+      l = l->next;
+    }
+}
+
+static void
+meta_plugin_manager_kill_switch_workspace (MetaPluginManager *plugin_mgr)
+{
+  GList *l = plugin_mgr->plugins;
+
+  while (l)
+    {
+      MetaPlugin        *plugin = l->data;
+      MetaPluginClass   *klass = META_PLUGIN_GET_CLASS (plugin);
+
+      if (!meta_plugin_disabled (plugin)
+          && (meta_plugin_features (plugin) & META_PLUGIN_SWITCH_WORKSPACE)
+	  && klass->kill_switch_workspace)
+        klass->kill_switch_workspace (plugin);
 
       l = l->next;
     }
 }
 
-#define ALL_BUT_SWITCH \
-  MUTTER_PLUGIN_ALL_EFFECTS & \
-  ~MUTTER_PLUGIN_SWITCH_WORKSPACE
 /*
  * Public method that the compositor hooks into for events that require
  * no additional parameters.
@@ -395,53 +449,55 @@ mutter_plugin_manager_kill_effect (MutterPluginManager *plugin_mgr,
  * appropriate post-effect cleanup is carried out.
  */
 gboolean
-mutter_plugin_manager_event_simple (MutterPluginManager *plugin_mgr,
-                                    MutterWindow        *actor,
-                                    unsigned long        event)
+meta_plugin_manager_event_simple (MetaPluginManager *plugin_mgr,
+                                  MetaWindowActor   *actor,
+                                  unsigned long      event)
 {
   GList *l = plugin_mgr->plugins;
   gboolean retval = FALSE;
+  MetaDisplay *display  = meta_screen_get_display (plugin_mgr->screen);
+
+  if (display->display_opening)
+    return FALSE;
 
   while (l)
     {
-      MutterPlugin        *plugin = l->data;
-      MutterPluginClass   *klass = MUTTER_PLUGIN_GET_CLASS (plugin);
+      MetaPlugin        *plugin = l->data;
+      MetaPluginClass   *klass = META_PLUGIN_GET_CLASS (plugin);
 
-      if (!mutter_plugin_disabled (plugin) &&
-          (mutter_plugin_features (plugin) & event))
+      if (!meta_plugin_disabled (plugin) &&
+          (meta_plugin_features (plugin) & event))
         {
           retval = TRUE;
 
           switch (event)
             {
-            case MUTTER_PLUGIN_MINIMIZE:
+            case META_PLUGIN_MINIMIZE:
               if (klass->minimize)
                 {
-                  mutter_plugin_manager_kill_effect (
+                  meta_plugin_manager_kill_window_effects (
 		      plugin_mgr,
-		      actor,
-		      ALL_BUT_SWITCH);
+		      actor);
 
-                  _mutter_plugin_effect_started (plugin);
+                  _meta_plugin_effect_started (plugin);
                   klass->minimize (plugin, actor);
                 }
               break;
-            case MUTTER_PLUGIN_MAP:
+            case META_PLUGIN_MAP:
               if (klass->map)
                 {
-                  mutter_plugin_manager_kill_effect (
+                  meta_plugin_manager_kill_window_effects (
 		      plugin_mgr,
-		      actor,
-		      ALL_BUT_SWITCH);
+		      actor);
 
-                  _mutter_plugin_effect_started (plugin);
+                  _meta_plugin_effect_started (plugin);
                   klass->map (plugin, actor);
                 }
               break;
-            case MUTTER_PLUGIN_DESTROY:
+            case META_PLUGIN_DESTROY:
               if (klass->destroy)
                 {
-                  _mutter_plugin_effect_started (plugin);
+                  _meta_plugin_effect_started (plugin);
                   klass->destroy (plugin, actor);
                 }
               break;
@@ -466,52 +522,54 @@ mutter_plugin_manager_event_simple (MutterPluginManager *plugin_mgr,
  * appropriate post-effect cleanup is carried out.
  */
 gboolean
-mutter_plugin_manager_event_maximize (MutterPluginManager *plugin_mgr,
-                                      MutterWindow        *actor,
-                                      unsigned long        event,
-                                      gint                 target_x,
-                                      gint                 target_y,
-                                      gint                 target_width,
-                                      gint                 target_height)
+meta_plugin_manager_event_maximize (MetaPluginManager *plugin_mgr,
+                                    MetaWindowActor   *actor,
+                                    unsigned long      event,
+                                    gint               target_x,
+                                    gint               target_y,
+                                    gint               target_width,
+                                    gint               target_height)
 {
   GList *l = plugin_mgr->plugins;
   gboolean retval = FALSE;
+  MetaDisplay *display  = meta_screen_get_display (plugin_mgr->screen);
+
+  if (display->display_opening)
+    return FALSE;
 
   while (l)
     {
-      MutterPlugin        *plugin = l->data;
-      MutterPluginClass   *klass = MUTTER_PLUGIN_GET_CLASS (plugin);
+      MetaPlugin        *plugin = l->data;
+      MetaPluginClass   *klass = META_PLUGIN_GET_CLASS (plugin);
 
-      if (!mutter_plugin_disabled (plugin) &&
-          (mutter_plugin_features (plugin) & event))
+      if (!meta_plugin_disabled (plugin) &&
+          (meta_plugin_features (plugin) & event))
         {
           retval = TRUE;
 
           switch (event)
             {
-            case MUTTER_PLUGIN_MAXIMIZE:
+            case META_PLUGIN_MAXIMIZE:
               if (klass->maximize)
                 {
-                  mutter_plugin_manager_kill_effect (
+                  meta_plugin_manager_kill_window_effects (
 		      plugin_mgr,
-		      actor,
-		      ALL_BUT_SWITCH);
+		      actor);
 
-                  _mutter_plugin_effect_started (plugin);
+                  _meta_plugin_effect_started (plugin);
                   klass->maximize (plugin, actor,
                                    target_x, target_y,
                                    target_width, target_height);
                 }
               break;
-            case MUTTER_PLUGIN_UNMAXIMIZE:
+            case META_PLUGIN_UNMAXIMIZE:
               if (klass->unmaximize)
                 {
-                  mutter_plugin_manager_kill_effect (
+                  meta_plugin_manager_kill_window_effects (
 		      plugin_mgr,
-		      actor,
-		      ALL_BUT_SWITCH);
+		      actor);
 
-                  _mutter_plugin_effect_started (plugin);
+                  _meta_plugin_effect_started (plugin);
                   klass->unmaximize (plugin, actor,
                                      target_x, target_y,
                                      target_width, target_height);
@@ -537,34 +595,33 @@ mutter_plugin_manager_event_maximize (MutterPluginManager *plugin_mgr,
  * appropriate post-effect cleanup is carried out.
  */
 gboolean
-mutter_plugin_manager_switch_workspace (MutterPluginManager *plugin_mgr,
-                                        const GList        **actors,
-                                        gint                 from,
-                                        gint                 to,
-                                        MetaMotionDirection  direction)
+meta_plugin_manager_switch_workspace (MetaPluginManager   *plugin_mgr,
+                                      gint                 from,
+                                      gint                 to,
+                                      MetaMotionDirection  direction)
 {
   GList *l = plugin_mgr->plugins;
   gboolean retval = FALSE;
+  MetaDisplay *display  = meta_screen_get_display (plugin_mgr->screen);
+
+  if (display->display_opening)
+    return FALSE;
 
   while (l)
     {
-      MutterPlugin        *plugin = l->data;
-      MutterPluginClass   *klass = MUTTER_PLUGIN_GET_CLASS (plugin);
+      MetaPlugin        *plugin = l->data;
+      MetaPluginClass   *klass = META_PLUGIN_GET_CLASS (plugin);
 
-      if (!mutter_plugin_disabled (plugin) &&
-          (mutter_plugin_features (plugin) & MUTTER_PLUGIN_SWITCH_WORKSPACE) &&
-          (actors && *actors))
+      if (!meta_plugin_disabled (plugin) &&
+          (meta_plugin_features (plugin) & META_PLUGIN_SWITCH_WORKSPACE))
         {
           if (klass->switch_workspace)
             {
               retval = TRUE;
-              mutter_plugin_manager_kill_effect (
-		  plugin_mgr,
-		  MUTTER_WINDOW ((*actors)->data),
-		  MUTTER_PLUGIN_SWITCH_WORKSPACE);
+              meta_plugin_manager_kill_switch_workspace (plugin_mgr);
 
-              _mutter_plugin_effect_started (plugin);
-              klass->switch_workspace (plugin, actors, from, to, direction);
+              _meta_plugin_effect_started (plugin);
+              klass->switch_workspace (plugin, from, to, direction);
             }
         }
 
@@ -583,8 +640,8 @@ mutter_plugin_manager_switch_workspace (MutterPluginManager *plugin_mgr,
  * appropriate post-effect cleanup is carried out.
  */
 gboolean
-mutter_plugin_manager_xevent_filter (MutterPluginManager *plugin_mgr,
-                                     XEvent              *xev)
+meta_plugin_manager_xevent_filter (MetaPluginManager *plugin_mgr,
+                                   XEvent            *xev)
 {
   GList *l;
   gboolean have_plugin_xevent_func;
@@ -614,8 +671,8 @@ mutter_plugin_manager_xevent_filter (MutterPluginManager *plugin_mgr,
 
   while (l)
     {
-      MutterPlugin      *plugin = l->data;
-      MutterPluginClass *klass = MUTTER_PLUGIN_GET_CLASS (plugin);
+      MetaPlugin      *plugin = l->data;
+      MetaPluginClass *klass = META_PLUGIN_GET_CLASS (plugin);
 
       if (klass->xevent_filter)
         {

src/compositor/meta-plugin-manager.h

@@ -0,0 +1,78 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/*
+ * Copyright (c) 2008 Intel Corp.
+ *
+ * Author: Tomas Frydrych <tf@linux.intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+#ifndef META_PLUGIN_MANAGER_H_
+#define META_PLUGIN_MANAGER_H_
+
+#include "types.h"
+#include "screen.h"
+
+#define  META_PLUGIN_FROM_MANAGER_
+#include "meta-plugin.h"
+#undef   META_PLUGIN_FROM_MANAGER_
+
+#define META_PLUGIN_MINIMIZE         (1<<0)
+#define META_PLUGIN_MAXIMIZE         (1<<1)
+#define META_PLUGIN_UNMAXIMIZE       (1<<2)
+#define META_PLUGIN_MAP              (1<<3)
+#define META_PLUGIN_DESTROY          (1<<4)
+#define META_PLUGIN_SWITCH_WORKSPACE (1<<5)
+
+#define META_PLUGIN_ALL_EFFECTS      (~0)
+
+/**
+ * MetaPluginManager: (skip)
+ *
+ */
+typedef struct MetaPluginManager MetaPluginManager;
+
+MetaPluginManager * meta_plugin_manager_get         (MetaScreen *screen);
+MetaPluginManager * meta_plugin_manager_get_default (void);
+
+gboolean meta_plugin_manager_load         (MetaPluginManager *mgr);
+gboolean meta_plugin_manager_initialize   (MetaPluginManager *plugin_mgr);
+gboolean meta_plugin_manager_event_simple (MetaPluginManager *mgr,
+                                           MetaWindowActor   *actor,
+                                           unsigned long      event);
+
+gboolean meta_plugin_manager_event_maximize    (MetaPluginManager *mgr,
+                                                MetaWindowActor   *actor,
+                                                unsigned long      event,
+                                                gint               target_x,
+                                                gint               target_y,
+                                                gint               target_width,
+                                                gint               target_height);
+void     meta_plugin_manager_update_workspaces (MetaPluginManager *mgr);
+
+void meta_plugin_manager_update_workspace (MetaPluginManager *mgr,
+                                           MetaWorkspace     *w);
+
+gboolean meta_plugin_manager_switch_workspace (MetaPluginManager   *mgr,
+                                               gint                 from,
+                                               gint                 to,
+                                               MetaMotionDirection  direction);
+
+gboolean meta_plugin_manager_xevent_filter (MetaPluginManager *mgr,
+                                            XEvent            *xev);
+
+#endif

src/compositor/meta-plugin.c

@@ -0,0 +1,607 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/*
+ * Copyright (c) 2008 Intel Corp.
+ *
+ * Author: Tomas Frydrych <tf@linux.intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+#include "meta-plugin.h"
+#include "screen.h"
+#include "display.h"
+
+#include <string.h>
+#include <X11/Xlib.h>
+#include <X11/extensions/Xfixes.h>
+#include <X11/extensions/shape.h>
+#include <clutter/x11/clutter-x11.h>
+
+#include "compositor-private.h"
+#include "meta-window-actor-private.h"
+
+G_DEFINE_ABSTRACT_TYPE (MetaPlugin, meta_plugin, G_TYPE_OBJECT);
+
+#define META_PLUGIN_GET_PRIVATE(obj) \
+(G_TYPE_INSTANCE_GET_PRIVATE ((obj), META_TYPE_PLUGIN, MetaPluginPrivate))
+
+enum
+{
+  PROP_0,
+  PROP_SCREEN,
+  PROP_PARAMS,
+  PROP_FEATURES,
+  PROP_DISABLED,
+  PROP_DEBUG_MODE,
+};
+
+struct _MetaPluginPrivate
+{
+  MetaScreen   *screen;
+  gchar        *params;
+  gulong        features;
+
+  gint          running;
+
+  gboolean      disabled : 1;
+  gboolean      debug    : 1;
+};
+
+static void
+meta_plugin_dispose (GObject *object)
+{
+  G_OBJECT_CLASS (meta_plugin_parent_class)->dispose (object);
+}
+
+static void
+meta_plugin_finalize (GObject *object)
+{
+  MetaPluginPrivate *priv = META_PLUGIN (object)->priv;
+
+  g_free (priv->params);
+  priv->params = NULL;
+
+  G_OBJECT_CLASS (meta_plugin_parent_class)->finalize (object);
+}
+
+static void
+meta_plugin_parse_params (MetaPlugin *plugin)
+{
+  char                  *p;
+  gulong                features = 0;
+  MetaPluginPrivate  *priv     = plugin->priv;
+  MetaPluginClass    *klass    = META_PLUGIN_GET_CLASS (plugin);
+
+/*
+ * Feature flags: identify events that the plugin can handle; a plugin can
+ * handle one or more events.
+ */
+  if (klass->minimize)
+    features |= META_PLUGIN_MINIMIZE;
+
+  if (klass->maximize)
+    features |= META_PLUGIN_MAXIMIZE;
+
+  if (klass->unmaximize)
+    features |= META_PLUGIN_UNMAXIMIZE;
+
+  if (klass->map)
+    features |= META_PLUGIN_MAP;
+
+  if (klass->destroy)
+    features |= META_PLUGIN_DESTROY;
+
+  if (klass->switch_workspace)
+    features |= META_PLUGIN_SWITCH_WORKSPACE;
+
+  if (priv->params)
+    {
+      gboolean debug = FALSE;
+
+      if ((p = strstr (priv->params, "disable:")))
+        {
+          gchar *d = g_strdup (p+8);
+
+          p = strchr (d, ';');
+
+          if (p)
+            *p = 0;
+
+          if (strstr (d, "minimize"))
+            features &= ~ META_PLUGIN_MINIMIZE;
+
+          if (strstr (d, "maximize"))
+            features &= ~ META_PLUGIN_MAXIMIZE;
+
+          if (strstr (d, "unmaximize"))
+            features &= ~ META_PLUGIN_UNMAXIMIZE;
+
+          if (strstr (d, "map"))
+            features &= ~ META_PLUGIN_MAP;
+
+          if (strstr (d, "destroy"))
+            features &= ~ META_PLUGIN_DESTROY;
+
+          if (strstr (d, "switch-workspace"))
+            features &= ~META_PLUGIN_SWITCH_WORKSPACE;
+
+          g_free (d);
+        }
+
+      if (strstr (priv->params, "debug"))
+        debug = TRUE;
+
+      if (debug != priv->debug)
+        {
+          priv->debug = debug;
+
+          g_object_notify (G_OBJECT (plugin), "debug-mode");
+        }
+    }
+
+  if (features != priv->features)
+    {
+      priv->features = features;
+
+      g_object_notify (G_OBJECT (plugin), "features");
+    }
+}
+
+static void
+meta_plugin_set_property (GObject      *object,
+                          guint         prop_id,
+                          const GValue *value,
+                          GParamSpec   *pspec)
+{
+  MetaPluginPrivate *priv = META_PLUGIN (object)->priv;
+
+  switch (prop_id)
+    {
+    case PROP_SCREEN:
+      priv->screen = g_value_get_object (value);
+      break;
+    case PROP_PARAMS:
+      priv->params = g_value_dup_string (value);
+      meta_plugin_parse_params (META_PLUGIN (object));
+      break;
+    case PROP_DISABLED:
+      priv->disabled = g_value_get_boolean (value);
+      break;
+    case PROP_DEBUG_MODE:
+      priv->debug = g_value_get_boolean (value);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+    }
+}
+
+static void
+meta_plugin_get_property (GObject    *object,
+                          guint       prop_id,
+                          GValue     *value,
+                          GParamSpec *pspec)
+{
+  MetaPluginPrivate *priv = META_PLUGIN (object)->priv;
+
+  switch (prop_id)
+    {
+    case PROP_SCREEN:
+      g_value_set_object (value, priv->screen);
+      break;
+    case PROP_PARAMS:
+      g_value_set_string (value, priv->params);
+      break;
+    case PROP_DISABLED:
+      g_value_set_boolean (value, priv->disabled);
+      break;
+    case PROP_DEBUG_MODE:
+      g_value_set_boolean (value, priv->debug);
+      break;
+    case PROP_FEATURES:
+      g_value_set_ulong (value, priv->features);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+    }
+}
+
+
+static void
+meta_plugin_class_init (MetaPluginClass *klass)
+{
+  GObjectClass      *gobject_class = G_OBJECT_CLASS (klass);
+
+  gobject_class->finalize        = meta_plugin_finalize;
+  gobject_class->dispose         = meta_plugin_dispose;
+  gobject_class->set_property    = meta_plugin_set_property;
+  gobject_class->get_property    = meta_plugin_get_property;
+
+  g_object_class_install_property (gobject_class,
+                                   PROP_SCREEN,
+                                   g_param_spec_object ("screen",
+                                                        "MetaScreen",
+                                                        "MetaScreen",
+                                                        META_TYPE_SCREEN,
+                                                        G_PARAM_READWRITE));
+
+  g_object_class_install_property (gobject_class,
+				   PROP_PARAMS,
+				   g_param_spec_string ("params",
+							"Parameters",
+							"Plugin Parameters",
+							NULL,
+							G_PARAM_READWRITE |
+                                                        G_PARAM_CONSTRUCT));
+
+  g_object_class_install_property (gobject_class,
+				   PROP_FEATURES,
+				   g_param_spec_ulong ("features",
+                                                       "Features",
+                                                       "Plugin Features",
+                                                       0 , G_MAXULONG, 0,
+                                                       G_PARAM_READABLE));
+
+  g_object_class_install_property (gobject_class,
+				   PROP_DISABLED,
+				   g_param_spec_boolean ("disabled",
+                                                      "Plugin disabled",
+                                                      "Plugin disabled",
+                                                      FALSE,
+                                                      G_PARAM_READWRITE));
+
+  g_object_class_install_property (gobject_class,
+				   PROP_DEBUG_MODE,
+				   g_param_spec_boolean ("debug-mode",
+                                                      "Debug Mode",
+                                                      "Debug Mode",
+                                                      FALSE,
+                                                      G_PARAM_READABLE));
+
+  g_type_class_add_private (gobject_class, sizeof (MetaPluginPrivate));
+}
+
+static void
+meta_plugin_init (MetaPlugin *self)
+{
+  MetaPluginPrivate *priv;
+
+  self->priv = priv = META_PLUGIN_GET_PRIVATE (self);
+}
+
+gulong
+meta_plugin_features (MetaPlugin *plugin)
+{
+  MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;
+
+  return priv->features;
+}
+
+gboolean
+meta_plugin_disabled (MetaPlugin *plugin)
+{
+  MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;
+
+  return priv->disabled;
+}
+
+gboolean
+meta_plugin_running  (MetaPlugin *plugin)
+{
+  MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;
+
+  return (priv->running > 0);
+}
+
+gboolean
+meta_plugin_debug_mode (MetaPlugin *plugin)
+{
+  MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;
+
+  return priv->debug;
+}
+
+const MetaPluginInfo *
+meta_plugin_get_info (MetaPlugin *plugin)
+{
+  MetaPluginClass  *klass = META_PLUGIN_GET_CLASS (plugin);
+
+  if (klass && klass->plugin_info)
+    return klass->plugin_info (plugin);
+
+  return NULL;
+}
+
+ClutterActor *
+meta_plugin_get_overlay_group (MetaPlugin *plugin)
+{
+  MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;
+
+  return meta_get_overlay_group_for_screen (priv->screen);
+}
+
+ClutterActor *
+meta_plugin_get_stage (MetaPlugin *plugin)
+{
+  MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;
+
+  return meta_get_stage_for_screen (priv->screen);
+}
+
+ClutterActor *
+meta_plugin_get_window_group (MetaPlugin *plugin)
+{
+  MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;
+
+  return meta_get_window_group_for_screen (priv->screen);
+}
+
+/**
+ * _meta_plugin_effect_started:
+ * @plugin: the plugin
+ *
+ * Mark that an effect has started for the plugin. This is called
+ * internally by MetaPluginManager.
+ */
+void
+_meta_plugin_effect_started (MetaPlugin *plugin)
+{
+  MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;
+
+  priv->running++;
+}
+
+void
+meta_plugin_switch_workspace_completed (MetaPlugin *plugin)
+{
+  MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;
+
+  MetaScreen *screen = meta_plugin_get_screen (plugin);
+
+  if (priv->running-- < 0)
+    {
+      g_warning ("Error in running effect accounting, adjusting.");
+      priv->running = 0;
+    }
+
+  meta_switch_workspace_completed (screen);
+}
+
+static void
+meta_plugin_window_effect_completed (MetaPlugin      *plugin,
+                                     MetaWindowActor *actor,
+                                     unsigned long    event)
+{
+  MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;
+
+  if (priv->running-- < 0)
+    {
+      g_warning ("Error in running effect accounting, adjusting.");
+      priv->running = 0;
+    }
+
+  if (!actor)
+    {
+      const MetaPluginInfo *info;
+      const gchar            *name = NULL;
+
+      if (plugin && (info = meta_plugin_get_info (plugin)))
+        name = info->name;
+
+      g_warning ("Plugin [%s] passed NULL for actor!",
+                 name ? name : "unknown");
+    }
+
+  meta_window_actor_effect_completed (actor, event);
+}
+
+void
+meta_plugin_minimize_completed (MetaPlugin      *plugin,
+                                MetaWindowActor *actor)
+{
+  meta_plugin_window_effect_completed (plugin, actor, META_PLUGIN_MINIMIZE);
+}
+
+void
+meta_plugin_maximize_completed (MetaPlugin      *plugin,
+                                MetaWindowActor *actor)
+{
+  meta_plugin_window_effect_completed (plugin, actor, META_PLUGIN_MAXIMIZE);
+}
+
+void
+meta_plugin_unmaximize_completed (MetaPlugin      *plugin,
+                                  MetaWindowActor *actor)
+{
+  meta_plugin_window_effect_completed (plugin, actor, META_PLUGIN_UNMAXIMIZE);
+}
+
+void
+meta_plugin_map_completed (MetaPlugin      *plugin,
+                           MetaWindowActor *actor)
+{
+  meta_plugin_window_effect_completed (plugin, actor, META_PLUGIN_MAP);
+}
+
+void
+meta_plugin_destroy_completed (MetaPlugin      *plugin,
+                               MetaWindowActor *actor)
+{
+  meta_plugin_window_effect_completed (plugin, actor, META_PLUGIN_DESTROY);
+}
+
+void
+meta_plugin_query_screen_size (MetaPlugin *plugin,
+                               int        *width,
+                               int        *height)
+{
+  MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;
+
+  meta_screen_get_size (priv->screen, width, height);
+}
+
+void
+meta_plugin_set_stage_reactive (MetaPlugin *plugin,
+                                gboolean    reactive)
+{
+  MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;
+  MetaScreen  *screen  = priv->screen;
+
+  if (reactive)
+    meta_set_stage_input_region (screen, None);
+  else
+    meta_empty_stage_input_region (screen);
+}
+
+void
+meta_plugin_set_stage_input_area (MetaPlugin *plugin,
+                                  gint x, gint y, gint width, gint height)
+{
+  MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;
+  MetaScreen   *screen  = priv->screen;
+  MetaDisplay  *display = meta_screen_get_display (screen);
+  Display      *xdpy    = meta_display_get_xdisplay (display);
+  XRectangle    rect;
+  XserverRegion region;
+
+  rect.x = x;
+  rect.y = y;
+  rect.width = width;
+  rect.height = height;
+
+  region = XFixesCreateRegion (xdpy, &rect, 1);
+  meta_set_stage_input_region (screen, region);
+  XFixesDestroyRegion (xdpy, region);
+}
+
+void
+meta_plugin_set_stage_input_region (MetaPlugin   *plugin,
+                                    XserverRegion region)
+{
+  MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;
+  MetaScreen  *screen  = priv->screen;
+
+  meta_set_stage_input_region (screen, region);
+}
+
+/**
+ * meta_plugin_get_window_actors:
+ * @plugin: A #MetaPlugin
+ *
+ * This function returns all of the #MetaWindowActor objects referenced by Mutter, including
+ * override-redirect windows.  The returned list is a snapshot of Mutter's current
+ * stacking order, with the topmost window last.
+ *
+ * The 'restacked' signal of #MetaScreen signals when this value has changed.
+ *
+ * Returns: (transfer none) (element-type MetaWindowActor): Windows in stacking order, topmost last
+ */
+GList *
+meta_plugin_get_window_actors (MetaPlugin *plugin)
+{
+  MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;
+
+  return meta_get_window_actors (priv->screen);
+}
+
+/**
+ * meta_plugin_begin_modal:
+ * @plugin: a #MetaPlugin
+ * @grab_window: the X window to grab the keyboard and mouse on
+ * @cursor: the cursor to use for the pointer grab, or None,
+ *          to use the normal cursor for the grab window and
+ *          its descendants.
+ * @options: flags that modify the behavior of the modal grab
+ * @timestamp: the timestamp used for establishing grabs
+ *
+ * This function is used to grab the keyboard and mouse for the exclusive
+ * use of the plugin. Correct operation requires that both the keyboard
+ * and mouse are grabbed, or thing will break. (In particular, other
+ * passive X grabs in Meta can trigger but not be handled by the normal
+ * keybinding handling code.) However, the plugin can establish the keyboard
+ * and/or mouse grabs ahead of time and pass in the
+ * %META_MODAL_POINTER_ALREADY_GRABBED and/or %META_MODAL_KEYBOARD_ALREADY_GRABBED
+ * options. This facility is provided for two reasons: first to allow using
+ * this function to establish modality after a passive grab, and second to
+ * allow using obscure features of XGrabPointer() and XGrabKeyboard() without
+ * having to add them to this API.
+ *
+ * Return value: whether we successfully grabbed the keyboard and
+ *  mouse and made the plugin modal.
+ */
+gboolean
+meta_plugin_begin_modal (MetaPlugin       *plugin,
+                         Window            grab_window,
+                         Cursor            cursor,
+                         MetaModalOptions  options,
+                         guint32           timestamp)
+{
+  MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;
+
+  return meta_begin_modal_for_plugin (priv->screen, plugin,
+                                      grab_window, cursor, options, timestamp);
+}
+
+/**
+ * meta_plugin_end_modal
+ * @plugin: a #MetaPlugin
+ * @timestamp: the time used for releasing grabs
+ *
+ * Ends the modal operation begun with meta_plugin_begin_modal(). This
+ * ungrabs both the mouse and keyboard even when
+ * %META_MODAL_POINTER_ALREADY_GRABBED or
+ * %META_MODAL_KEYBOARD_ALREADY_GRABBED were provided as options
+ * when beginnning the modal operation.
+ */
+void
+meta_plugin_end_modal (MetaPlugin *plugin,
+                       guint32     timestamp)
+{
+  MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;
+
+  meta_end_modal_for_plugin (priv->screen, plugin, timestamp);
+}
+
+Display *
+meta_plugin_get_xdisplay (MetaPlugin *plugin)
+{
+  MetaPluginPrivate *priv    = META_PLUGIN (plugin)->priv;
+  MetaDisplay       *display = meta_screen_get_display (priv->screen);
+  Display           *xdpy    = meta_display_get_xdisplay (display);
+
+  return xdpy;
+}
+
+/**
+ * meta_plugin_get_screen:
+ * @plugin: a #MetaPlugin
+ *
+ * Gets the #MetaScreen corresponding to a plugin. Each plugin instance
+ * is associated with exactly one screen; if Metacity is managing
+ * multiple screens, multiple plugin instances will be created.
+ *
+ * Return value: (transfer none): the #MetaScreen for the plugin
+ */
+MetaScreen *
+meta_plugin_get_screen (MetaPlugin *plugin)
+{
+  MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;
+
+  return priv->screen;
+}
+

src/compositor/meta-shadow-factory-private.h

@@ -0,0 +1,65 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+/*
+ * MetaShadowFactory:
+ *
+ * Create and cache shadow textures for arbitrary window shapes
+ *
+ * Copyright (C) 2010 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+#ifndef __META_SHADOW_FACTORY_PRIVATE_H__
+#define __META_SHADOW_FACTORY_PRIVATE_H__
+
+#include <cairo.h>
+#include <clutter/clutter.h>
+#include "meta-window-shape.h"
+#include "meta-shadow-factory.h"
+
+/**
+ * MetaShadow:
+ * #MetaShadow holds a shadow texture along with information about how to
+ * apply that texture to draw a window texture. (E.g., it knows how big the
+ * unscaled borders are on each side of the shadow texture.)
+ */
+typedef struct _MetaShadow MetaShadow;
+
+MetaShadow *meta_shadow_ref         (MetaShadow            *shadow);
+void        meta_shadow_unref       (MetaShadow            *shadow);
+CoglHandle  meta_shadow_get_texture (MetaShadow            *shadow);
+void        meta_shadow_paint       (MetaShadow            *shadow,
+                                     int                    window_x,
+                                     int                    window_y,
+                                     int                    window_width,
+                                     int                    window_height,
+                                     guint8                 opacity,
+                                     cairo_region_t        *clip);
+void        meta_shadow_get_bounds  (MetaShadow            *shadow,
+                                     int                    window_x,
+                                     int                    window_y,
+                                     int                    window_width,
+                                     int                    window_height,
+                                     cairo_rectangle_int_t *bounds);
+
+MetaShadow *meta_shadow_factory_get_shadow (MetaShadowFactory *factory,
+                                            MetaWindowShape   *shape,
+                                            int                width,
+                                            int                height,
+                                            const char        *class_name,
+                                            gboolean           focused);
+
+#endif /* __META_SHADOW_FACTORY_PRIVATE_H__ */

src/compositor/meta-shaped-texture.c

@@ -0,0 +1,635 @@
+/*
+ * shaped texture
+ *
+ * An actor to draw a texture clipped to a list of rectangles
+ *
+ * Authored By Neil Roberts  <neil@linux.intel.com>
+ *
+ * Copyright (C) 2008 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+#include <config.h>
+
+#include "meta-shaped-texture.h"
+#include "meta-texture-tower.h"
+
+#include <clutter/clutter.h>
+#include <cogl/cogl.h>
+#include <string.h>
+
+static void meta_shaped_texture_dispose  (GObject    *object);
+static void meta_shaped_texture_finalize (GObject    *object);
+static void meta_shaped_texture_notify   (GObject    *object,
+					  GParamSpec *pspec);
+
+static void meta_shaped_texture_paint (ClutterActor       *actor);
+static void meta_shaped_texture_pick  (ClutterActor       *actor,
+				       const ClutterColor *color);
+
+static void meta_shaped_texture_update_area (ClutterX11TexturePixmap *texture,
+					     int                      x,
+					     int                      y,
+					     int                      width,
+					     int                      height);
+
+static void meta_shaped_texture_dirty_mask (MetaShapedTexture *stex);
+
+#ifdef HAVE_GLX_TEXTURE_PIXMAP
+G_DEFINE_TYPE (MetaShapedTexture, meta_shaped_texture,
+               CLUTTER_GLX_TYPE_TEXTURE_PIXMAP);
+#else /* HAVE_GLX_TEXTURE_PIXMAP */
+G_DEFINE_TYPE (MetaShapedTexture, meta_shaped_texture,
+               CLUTTER_X11_TYPE_TEXTURE_PIXMAP);
+#endif /* HAVE_GLX_TEXTURE_PIXMAP */
+
+#define META_SHAPED_TEXTURE_GET_PRIVATE(obj) \
+  (G_TYPE_INSTANCE_GET_PRIVATE ((obj), META_TYPE_SHAPED_TEXTURE, \
+                                MetaShapedTexturePrivate))
+
+struct _MetaShapedTexturePrivate
+{
+  MetaTextureTower *paint_tower;
+  CoglHandle mask_texture;
+  CoglHandle material;
+  CoglHandle material_unshaped;
+
+  cairo_region_t *clip_region;
+
+  guint mask_width, mask_height;
+
+  GArray *rectangles;
+
+  guint create_mipmaps : 1;
+};
+
+static void
+meta_shaped_texture_class_init (MetaShapedTextureClass *klass)
+{
+  GObjectClass *gobject_class = (GObjectClass *) klass;
+  ClutterActorClass *actor_class = (ClutterActorClass *) klass;
+  ClutterX11TexturePixmapClass *x11_texture_class = (ClutterX11TexturePixmapClass *) klass;
+
+  gobject_class->dispose = meta_shaped_texture_dispose;
+  gobject_class->finalize = meta_shaped_texture_finalize;
+  gobject_class->notify = meta_shaped_texture_notify;
+
+  actor_class->paint = meta_shaped_texture_paint;
+  actor_class->pick = meta_shaped_texture_pick;
+
+  x11_texture_class->update_area = meta_shaped_texture_update_area;
+
+  g_type_class_add_private (klass, sizeof (MetaShapedTexturePrivate));
+}
+
+static void
+meta_shaped_texture_init (MetaShapedTexture *self)
+{
+  MetaShapedTexturePrivate *priv;
+
+  priv = self->priv = META_SHAPED_TEXTURE_GET_PRIVATE (self);
+
+  priv->rectangles = g_array_new (FALSE, FALSE, sizeof (XRectangle));
+
+  priv->paint_tower = meta_texture_tower_new ();
+  priv->mask_texture = COGL_INVALID_HANDLE;
+  priv->create_mipmaps = TRUE;
+}
+
+static void
+meta_shaped_texture_dispose (GObject *object)
+{
+  MetaShapedTexture *self = (MetaShapedTexture *) object;
+  MetaShapedTexturePrivate *priv = self->priv;
+
+  if (priv->paint_tower)
+    meta_texture_tower_free (priv->paint_tower);
+  priv->paint_tower = NULL;
+
+  meta_shaped_texture_dirty_mask (self);
+
+  if (priv->material != COGL_INVALID_HANDLE)
+    {
+      cogl_handle_unref (priv->material);
+      priv->material = COGL_INVALID_HANDLE;
+    }
+  if (priv->material_unshaped != COGL_INVALID_HANDLE)
+    {
+      cogl_handle_unref (priv->material_unshaped);
+      priv->material_unshaped = COGL_INVALID_HANDLE;
+    }
+
+  meta_shaped_texture_set_clip_region (self, NULL);
+
+  G_OBJECT_CLASS (meta_shaped_texture_parent_class)->dispose (object);
+}
+
+static void
+meta_shaped_texture_finalize (GObject *object)
+{
+  MetaShapedTexture *self = (MetaShapedTexture *) object;
+  MetaShapedTexturePrivate *priv = self->priv;
+
+  g_array_free (priv->rectangles, TRUE);
+
+  G_OBJECT_CLASS (meta_shaped_texture_parent_class)->finalize (object);
+}
+
+static void
+meta_shaped_texture_notify (GObject    *object,
+			    GParamSpec *pspec)
+{
+  if (G_OBJECT_CLASS (meta_shaped_texture_parent_class)->notify)
+    G_OBJECT_CLASS (meta_shaped_texture_parent_class)->notify (object, pspec);
+
+  /* It seems like we could just do this out of update_area(), but unfortunately,
+   * clutter_glx_texture_pixmap() doesn't call through the vtable on the
+   * initial update_area, so we need to look for changes to the texture
+   * explicitly.
+   */
+  if (strcmp (pspec->name, "cogl-texture") == 0)
+    {
+      MetaShapedTexture *stex = (MetaShapedTexture *) object;
+      MetaShapedTexturePrivate *priv = stex->priv;
+
+      meta_shaped_texture_clear (stex);
+
+      if (priv->create_mipmaps)
+	meta_texture_tower_set_base_texture (priv->paint_tower,
+					       clutter_texture_get_cogl_texture (CLUTTER_TEXTURE (stex)));
+    }
+}
+
+static void
+meta_shaped_texture_dirty_mask (MetaShapedTexture *stex)
+{
+  MetaShapedTexturePrivate *priv = stex->priv;
+
+  if (priv->mask_texture != COGL_INVALID_HANDLE)
+    {
+      GLuint mask_gl_tex;
+      GLenum mask_gl_target;
+
+      cogl_texture_get_gl_texture (priv->mask_texture,
+                                   &mask_gl_tex, &mask_gl_target);
+
+      if (mask_gl_target == GL_TEXTURE_RECTANGLE_ARB)
+        glDeleteTextures (1, &mask_gl_tex);
+
+      cogl_handle_unref (priv->mask_texture);
+      priv->mask_texture = COGL_INVALID_HANDLE;
+
+      if (priv->material != COGL_INVALID_HANDLE)
+        cogl_material_set_layer (priv->material, 1, COGL_INVALID_HANDLE);
+    }
+}
+
+static void
+meta_shaped_texture_ensure_mask (MetaShapedTexture *stex)
+{
+  MetaShapedTexturePrivate *priv = stex->priv;
+  CoglHandle paint_tex;
+  guint tex_width, tex_height;
+
+  paint_tex = clutter_texture_get_cogl_texture (CLUTTER_TEXTURE (stex));
+
+  if (paint_tex == COGL_INVALID_HANDLE)
+    return;
+
+  tex_width = cogl_texture_get_width (paint_tex);
+  tex_height = cogl_texture_get_height (paint_tex);
+
+  /* If the mask texture we have was created for a different size then
+     recreate it */
+  if (priv->mask_texture != COGL_INVALID_HANDLE
+      && (priv->mask_width != tex_width || priv->mask_height != tex_height))
+    meta_shaped_texture_dirty_mask (stex);
+
+  /* If we don't have a mask texture yet then create one */
+  if (priv->mask_texture == COGL_INVALID_HANDLE)
+    {
+      guchar *mask_data;
+      const XRectangle *rect;
+      GLenum paint_gl_target;
+
+      /* Create data for an empty image */
+      mask_data = g_malloc0 (tex_width * tex_height);
+
+      /* Cut out a hole for each rectangle */
+      for (rect = (XRectangle *) priv->rectangles->data
+             + priv->rectangles->len;
+           rect-- > (XRectangle *) priv->rectangles->data;)
+        {
+          gint x1 = rect->x, x2 = x1 + rect->width;
+          gint y1 = rect->y, y2 = y1 + rect->height;
+          guchar *p;
+
+          /* Clip the rectangle to the size of the texture */
+          x1 = CLAMP (x1, 0, (gint) tex_width - 1);
+          x2 = CLAMP (x2, x1, (gint) tex_width);
+          y1 = CLAMP (y1, 0, (gint) tex_height - 1);
+          y2 = CLAMP (y2, y1, (gint) tex_height);
+
+          /* Fill the rectangle */
+          for (p = mask_data + y1 * tex_width + x1;
+               y1 < y2;
+               y1++, p += tex_width)
+            memset (p, 255, x2 - x1);
+        }
+
+      cogl_texture_get_gl_texture (paint_tex, NULL, &paint_gl_target);
+
+      if (paint_gl_target == GL_TEXTURE_RECTANGLE_ARB)
+        {
+          GLuint tex;
+
+          glGenTextures (1, &tex);
+          glBindTexture (GL_TEXTURE_RECTANGLE_ARB, tex);
+          glPixelStorei (GL_UNPACK_ROW_LENGTH, tex_width);
+          glPixelStorei (GL_UNPACK_ALIGNMENT, 1);
+          glPixelStorei (GL_UNPACK_SKIP_ROWS, 0);
+          glPixelStorei (GL_UNPACK_SKIP_PIXELS, 0);
+          glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0,
+                        GL_ALPHA, tex_width, tex_height,
+                        0, GL_ALPHA, GL_UNSIGNED_BYTE, mask_data);
+
+          priv->mask_texture
+            = cogl_texture_new_from_foreign (tex,
+                                             GL_TEXTURE_RECTANGLE_ARB,
+                                             tex_width, tex_height,
+                                             0, 0,
+                                             COGL_PIXEL_FORMAT_A_8);
+        }
+      else
+        priv->mask_texture = cogl_texture_new_from_data (tex_width, tex_height,
+                                                         COGL_TEXTURE_NONE,
+                                                         COGL_PIXEL_FORMAT_A_8,
+                                                         COGL_PIXEL_FORMAT_ANY,
+                                                         tex_width,
+                                                         mask_data);
+
+      g_free (mask_data);
+
+      priv->mask_width = tex_width;
+      priv->mask_height = tex_height;
+    }
+}
+
+static void
+meta_shaped_texture_paint (ClutterActor *actor)
+{
+  MetaShapedTexture *stex = (MetaShapedTexture *) actor;
+  MetaShapedTexturePrivate *priv = stex->priv;
+  CoglHandle paint_tex;
+  guint tex_width, tex_height;
+  ClutterActorBox alloc;
+
+  static CoglHandle material_template = COGL_INVALID_HANDLE;
+  static CoglHandle material_unshaped_template = COGL_INVALID_HANDLE;
+
+  CoglHandle material;
+
+  if (priv->clip_region && cairo_region_is_empty (priv->clip_region))
+    return;
+
+  if (!CLUTTER_ACTOR_IS_REALIZED (CLUTTER_ACTOR (stex)))
+    clutter_actor_realize (CLUTTER_ACTOR (stex));
+
+  /* The GL EXT_texture_from_pixmap extension does allow for it to be
+   * used together with SGIS_generate_mipmap, however this is very
+   * rarely supported. Also, even when it is supported there
+   * are distinct performance implications from:
+   *
+   *  - Updating mipmaps that we don't need
+   *  - Having to reallocate pixmaps on the server into larger buffers
+   *
+   * So, we just unconditionally use our mipmap emulation code. If we
+   * wanted to use SGIS_generate_mipmap, we'd have to  query COGL to
+   * see if it was supported (no API currently), and then if and only
+   * if that was the case, set the clutter texture quality to HIGH.
+   * Setting the texture quality to high without SGIS_generate_mipmap
+   * support for TFP textures will result in fallbacks to XGetImage.
+   */
+  if (priv->create_mipmaps)
+    paint_tex = meta_texture_tower_get_paint_texture (priv->paint_tower);
+  else
+    paint_tex = clutter_texture_get_cogl_texture (CLUTTER_TEXTURE (stex));
+
+  if (paint_tex == COGL_INVALID_HANDLE)
+    return;
+
+  tex_width = cogl_texture_get_width (paint_tex);
+  tex_height = cogl_texture_get_height (paint_tex);
+
+  if (tex_width == 0 || tex_height == 0) /* no contents yet */
+    return;
+
+  if (priv->rectangles->len < 1)
+    {
+      /* If there are no rectangles use a single-layer texture */
+
+      if (priv->material_unshaped == COGL_INVALID_HANDLE) 
+        {
+          if (G_UNLIKELY (material_unshaped_template == COGL_INVALID_HANDLE))
+            material_unshaped_template = cogl_material_new ();
+
+          priv->material_unshaped = cogl_material_copy (material_unshaped_template);
+        }
+        material = priv->material_unshaped;
+    }
+  else
+    {
+      meta_shaped_texture_ensure_mask (stex);
+
+      if (priv->material == COGL_INVALID_HANDLE)
+	{
+	   if (G_UNLIKELY (material_template == COGL_INVALID_HANDLE))
+	    {
+	      material_template =  cogl_material_new ();
+	      cogl_material_set_layer_combine (material_template, 1,
+					   "RGBA = MODULATE (PREVIOUS, TEXTURE[A])",
+					   NULL);
+	    }
+	  priv->material = cogl_material_copy (material_template);
+	}
+      material = priv->material;
+
+      cogl_material_set_layer (material, 1, priv->mask_texture);
+    }
+
+  cogl_material_set_layer (material, 0, paint_tex);
+
+  {
+    CoglColor color;
+    guchar opacity = clutter_actor_get_paint_opacity (actor);
+    cogl_color_set_from_4ub (&color, opacity, opacity, opacity, opacity);
+    cogl_material_set_color (material, &color);
+  }
+
+  cogl_set_source (material);
+
+  clutter_actor_get_allocation_box (actor, &alloc);
+
+  if (priv->clip_region)
+    {
+      int n_rects;
+      int i;
+
+      /* Limit to how many separate rectangles we'll draw; beyond this just
+       * fall back and draw the whole thing */
+#     define MAX_RECTS 16
+
+      n_rects = cairo_region_num_rectangles (priv->clip_region);
+      if (n_rects <= MAX_RECTS)
+	{
+	  float coords[8];
+          float x1, y1, x2, y2;
+
+	  for (i = 0; i < n_rects; i++)
+	    {
+	      cairo_rectangle_int_t rect;
+
+	      cairo_region_get_rectangle (priv->clip_region, i, &rect);
+
+	      x1 = rect.x;
+	      y1 = rect.y;
+	      x2 = rect.x + rect.width;
+	      y2 = rect.y + rect.height;
+
+	      coords[0] = rect.x / (alloc.x2 - alloc.x1);
+	      coords[1] = rect.y / (alloc.y2 - alloc.y1);
+	      coords[2] = (rect.x + rect.width) / (alloc.x2 - alloc.x1);
+	      coords[3] = (rect.y + rect.height) / (alloc.y2 - alloc.y1);
+
+              coords[4] = coords[0];
+              coords[5] = coords[1];
+              coords[6] = coords[2];
+              coords[7] = coords[3];
+
+              cogl_rectangle_with_multitexture_coords (x1, y1, x2, y2,
+                                                       &coords[0], 8);
+            }
+
+	  return;
+	}
+    }
+
+  cogl_rectangle (0, 0,
+		  alloc.x2 - alloc.x1,
+		  alloc.y2 - alloc.y1);
+}
+
+static void
+meta_shaped_texture_pick (ClutterActor       *actor,
+			  const ClutterColor *color)
+{
+  MetaShapedTexture *stex = (MetaShapedTexture *) actor;
+  MetaShapedTexturePrivate *priv = stex->priv;
+
+  /* If there are no rectangles then use the regular pick */
+  if (priv->rectangles->len < 1)
+    CLUTTER_ACTOR_CLASS (meta_shaped_texture_parent_class)
+      ->pick (actor, color);
+  else if (clutter_actor_should_pick_paint (actor))
+    {
+      CoglHandle paint_tex;
+      ClutterActorBox alloc;
+      guint tex_width, tex_height;
+
+      paint_tex = clutter_texture_get_cogl_texture (CLUTTER_TEXTURE (stex));
+
+      if (paint_tex == COGL_INVALID_HANDLE)
+        return;
+
+      tex_width = cogl_texture_get_width (paint_tex);
+      tex_height = cogl_texture_get_height (paint_tex);
+
+      if (tex_width == 0 || tex_height == 0) /* no contents yet */
+        return;
+
+      meta_shaped_texture_ensure_mask (stex);
+
+      cogl_set_source_color4ub (color->red, color->green, color->blue,
+                                 color->alpha);
+
+      clutter_actor_get_allocation_box (actor, &alloc);
+
+      /* Paint the mask rectangle in the given color */
+      cogl_set_source_texture (priv->mask_texture);
+      cogl_rectangle_with_texture_coords (0, 0,
+                                          alloc.x2 - alloc.x1,
+                                          alloc.y2 - alloc.y1,
+                                          0, 0, 1, 1);
+    }
+}
+
+static void
+meta_shaped_texture_update_area (ClutterX11TexturePixmap *texture,
+				 int                      x,
+				 int                      y,
+				 int                      width,
+				 int                      height)
+{
+  MetaShapedTexture *stex = (MetaShapedTexture *) texture;
+  MetaShapedTexturePrivate *priv = stex->priv;
+
+  CLUTTER_X11_TEXTURE_PIXMAP_CLASS (meta_shaped_texture_parent_class)->update_area (texture,
+                                                                                      x, y, width, height);
+
+  meta_texture_tower_update_area (priv->paint_tower, x, y, width, height);
+}
+
+ClutterActor *
+meta_shaped_texture_new (void)
+{
+  ClutterActor *self = g_object_new (META_TYPE_SHAPED_TEXTURE, NULL);
+
+  return self;
+}
+
+void
+meta_shaped_texture_set_create_mipmaps (MetaShapedTexture *stex,
+					gboolean           create_mipmaps)
+{
+  MetaShapedTexturePrivate *priv;
+
+  g_return_if_fail (META_IS_SHAPED_TEXTURE (stex));
+
+  priv = stex->priv;
+
+  create_mipmaps = create_mipmaps != FALSE;
+
+  if (create_mipmaps != priv->create_mipmaps)
+    {
+      CoglHandle base_texture;
+
+      priv->create_mipmaps = create_mipmaps;
+
+      base_texture = create_mipmaps ?
+	clutter_texture_get_cogl_texture (CLUTTER_TEXTURE (stex)) : COGL_INVALID_HANDLE;
+
+      meta_texture_tower_set_base_texture (priv->paint_tower, base_texture);
+    }
+}
+
+/* This is a workaround for deficiencies in the hack tower:
+ *
+ * When we call clutter_x11_texture_pixmap_set_pixmap(tp, None),
+ * ClutterX11TexturePixmap knows that it has to get rid of the old texture, but
+ * clutter_texture_set_cogl_texture(texture, COGL_INVALID_HANDLE) isn't allowed, so
+ * it grabs the material for the texture and manually sets the texture in it. This means
+ * that the "cogl-texture" property isn't notified, so we don't find out about it.
+ *
+ * And if we keep the CoglX11TexturePixmap around after the X pixmap is freed, then
+ * we'll trigger X errors when we actually try to free it.
+ *
+ * The only correct thing to do here is to change our code to derive
+ * from ClutterActor and get rid of the inheritance hack tower.  Once
+ * we want to depend on Clutter-1.4 (which has CoglTexturePixmapX11),
+ * that will be very easy to do.
+ */
+void
+meta_shaped_texture_clear (MetaShapedTexture *stex)
+{
+  MetaShapedTexturePrivate *priv;
+
+  g_return_if_fail (META_IS_SHAPED_TEXTURE (stex));
+
+  priv = stex->priv;
+
+  meta_texture_tower_set_base_texture (priv->paint_tower, COGL_INVALID_HANDLE);
+
+  if (priv->material != COGL_INVALID_HANDLE)
+    cogl_material_set_layer (priv->material, 0, COGL_INVALID_HANDLE);
+
+  if (priv->material_unshaped != COGL_INVALID_HANDLE)
+    cogl_material_set_layer (priv->material_unshaped, 0, COGL_INVALID_HANDLE);
+}
+
+void
+meta_shaped_texture_clear_rectangles (MetaShapedTexture *stex)
+{
+  MetaShapedTexturePrivate *priv;
+
+  g_return_if_fail (META_IS_SHAPED_TEXTURE (stex));
+
+  priv = stex->priv;
+
+  g_array_set_size (priv->rectangles, 0);
+  meta_shaped_texture_dirty_mask (stex);
+  clutter_actor_queue_redraw (CLUTTER_ACTOR (stex));
+}
+
+void
+meta_shaped_texture_add_rectangle (MetaShapedTexture *stex,
+				   const XRectangle  *rect)
+{
+  g_return_if_fail (META_IS_SHAPED_TEXTURE (stex));
+
+  meta_shaped_texture_add_rectangles (stex, 1, rect);
+}
+
+void
+meta_shaped_texture_add_rectangles (MetaShapedTexture *stex,
+				    size_t             num_rects,
+				    const XRectangle  *rects)
+{
+  MetaShapedTexturePrivate *priv;
+
+  g_return_if_fail (META_IS_SHAPED_TEXTURE (stex));
+
+  priv = stex->priv;
+
+  g_array_append_vals (priv->rectangles, rects, num_rects);
+
+  meta_shaped_texture_dirty_mask (stex);
+  clutter_actor_queue_redraw (CLUTTER_ACTOR (stex));
+}
+
+/**
+ * meta_shaped_texture_set_clip_region:
+ * @frame: a #TidyTextureframe
+ * @clip_region: (transfer full): the region of the texture that
+ *   is visible and should be painted. OWNERSHIP IS ASSUMED BY
+ *   THE FUNCTION (for efficiency to avoid a copy.)
+ *
+ * Provides a hint to the texture about what areas of the texture
+ * are not completely obscured and thus need to be painted. This
+ * is an optimization and is not supposed to have any effect on
+ * the output.
+ *
+ * Typically a parent container will set the clip region before
+ * painting its children, and then unset it afterwards.
+ */
+void
+meta_shaped_texture_set_clip_region (MetaShapedTexture *stex,
+				     cairo_region_t    *clip_region)
+{
+  MetaShapedTexturePrivate *priv;
+
+  g_return_if_fail (META_IS_SHAPED_TEXTURE (stex));
+
+  priv = stex->priv;
+
+  if (priv->clip_region)
+    {
+      cairo_region_destroy (priv->clip_region);
+      priv->clip_region = NULL;
+    }
+
+  priv->clip_region = clip_region;
+}

src/compositor/meta-shaped-texture.h

@@ -0,0 +1,92 @@
+/*
+ * shaped texture
+ *
+ * An actor to draw a texture clipped to a list of rectangles
+ *
+ * Authored By Neil Roberts  <neil@linux.intel.com>
+ *
+ * Copyright (C) 2008 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+#ifndef __META_SHAPED_TEXTURE_H__
+#define __META_SHAPED_TEXTURE_H__
+
+#include <config.h>
+
+#include <clutter/clutter.h>
+#ifdef HAVE_GLX_TEXTURE_PIXMAP
+#include <clutter/glx/clutter-glx.h>
+#endif /* HAVE_GLX_TEXTURE_PIXMAP */
+
+G_BEGIN_DECLS
+
+#define META_TYPE_SHAPED_TEXTURE            (meta_shaped_texture_get_type())
+#define META_SHAPED_TEXTURE(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj),META_TYPE_SHAPED_TEXTURE, MetaShapedTexture))
+#define META_SHAPED_TEXTURE_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), META_TYPE_SHAPED_TEXTURE, MetaShapedTextureClass))
+#define META_IS_SHAPED_TEXTURE(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_SHAPED_TEXTURE))
+#define META_IS_SHAPED_TEXTURE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), META_TYPE_SHAPED_TEXTURE))
+#define META_SHAPED_TEXTURE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), META_TYPE_SHAPED_TEXTURE, MetaShapedTextureClass))
+
+typedef struct _MetaShapedTexture        MetaShapedTexture;
+typedef struct _MetaShapedTextureClass   MetaShapedTextureClass;
+typedef struct _MetaShapedTexturePrivate MetaShapedTexturePrivate;
+
+struct _MetaShapedTextureClass
+{
+#ifdef HAVE_GLX_TEXTURE_PIXMAP
+  ClutterGLXTexturePixmapClass parent_class;
+#else
+  ClutterX11TexturePixmapClass parent_class;
+#endif
+};
+
+struct _MetaShapedTexture
+{
+#ifdef HAVE_GLX_TEXTURE_PIXMAP
+  ClutterGLXTexturePixmap parent;
+#else
+  ClutterX11TexturePixmap parent;
+#endif
+
+  MetaShapedTexturePrivate *priv;
+};
+
+GType meta_shaped_texture_get_type (void) G_GNUC_CONST;
+
+ClutterActor *meta_shaped_texture_new (void);
+
+void meta_shaped_texture_set_create_mipmaps (MetaShapedTexture *stex,
+					     gboolean           create_mipmaps);
+
+void meta_shaped_texture_clear (MetaShapedTexture *stex);
+
+void meta_shaped_texture_clear_rectangles (MetaShapedTexture *stex);
+
+void meta_shaped_texture_add_rectangle  (MetaShapedTexture *stex,
+					 const XRectangle  *rect);
+void meta_shaped_texture_add_rectangles (MetaShapedTexture *stex,
+					 size_t             num_rects,
+					 const XRectangle  *rects);
+
+/* Assumes ownership of clip_region */
+void meta_shaped_texture_set_clip_region (MetaShapedTexture *stex,
+					  cairo_region_t    *clip_region);
+
+G_END_DECLS
+
+#endif /* __META_SHAPED_TEXTURE_H__ */

src/compositor/meta-texture-tower.c

@@ -0,0 +1,654 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+/*
+ * MetaTextureTower
+ *
+ * Mipmap emulation by creation of scaled down images
+ *
+ * Copyright (C) 2009 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+#include <math.h>
+#include <string.h>
+
+#include "meta-texture-tower.h"
+
+#ifndef M_LOG2E
+#define M_LOG2E 1.4426950408889634074
+#endif
+
+#define MAX_TEXTURE_LEVELS 12
+
+/* If the texture format in memory doesn't match this, then Mesa
+ * will do the conversion, so things will still work, but it might
+ * be slow depending on how efficient Mesa is. These should be the
+ * native formats unless the display is 16bpp. If conversions
+ * here are a bottleneck, investigate whether we are converting when
+ * storing window data *into* the texture before adding extra code
+ * to handle multiple texture formats.
+ */
+#if G_BYTE_ORDER == G_LITTLE_ENDIAN
+#define TEXTURE_FORMAT COGL_PIXEL_FORMAT_BGRA_8888_PRE
+#else
+#define TEXTURE_FORMAT COGL_PIXEL_FORMAT_ARGB_8888_PRE
+#endif
+
+typedef struct
+{
+  guint16 x1;
+  guint16 y1;
+  guint16 x2;
+  guint16 y2;
+} Box;
+
+struct _MetaTextureTower
+{
+  int n_levels;
+  CoglHandle textures[MAX_TEXTURE_LEVELS];
+  CoglHandle fbos[MAX_TEXTURE_LEVELS];
+  Box invalid[MAX_TEXTURE_LEVELS];
+};
+
+/**
+ * meta_texture_tower_new:
+ *
+ * Creates a new texture tower. The base texture has to be set with
+ * meta_texture_tower_set_base_texture() before use.
+ *
+ * Return value: the new texture tower. Free with meta_texture_tower_free()
+ */
+MetaTextureTower *
+meta_texture_tower_new (void)
+{
+  MetaTextureTower *tower;
+
+  tower = g_slice_new0 (MetaTextureTower);
+
+  return tower;
+}
+
+/**
+ * meta_texture_tower_free:
+ * @tower: a #MetaTextureTower
+ *
+ * Frees a texture tower created with meta_texture_tower_new().
+ */
+void
+meta_texture_tower_free (MetaTextureTower *tower)
+{
+  g_return_if_fail (tower != NULL);
+
+  meta_texture_tower_set_base_texture (tower, COGL_INVALID_HANDLE);
+
+  g_slice_free (MetaTextureTower, tower);
+}
+
+static gboolean
+texture_is_rectangle (CoglHandle texture)
+{
+  GLuint gl_tex;
+  GLenum gl_target;
+
+  cogl_texture_get_gl_texture (texture, &gl_tex, &gl_target);
+  return gl_target == GL_TEXTURE_RECTANGLE_ARB;
+}
+
+static void
+free_texture (CoglHandle texture)
+{
+  GLuint gl_tex;
+  GLenum gl_target;
+
+  cogl_texture_get_gl_texture (texture, &gl_tex, &gl_target);
+
+  if (gl_target == GL_TEXTURE_RECTANGLE_ARB)
+    glDeleteTextures (1, &gl_tex);
+
+  cogl_handle_unref (texture);
+}
+
+/**
+ * meta_texture_tower_update_area:
+ * @tower: a MetaTextureTower
+ * @texture: the new texture used as a base for scaled down versions
+ *
+ * Sets the base texture that is the scaled texture that the
+ * scaled textures of the tower are derived from. The texture itself
+ * will be used as level 0 of the tower and will be referenced until
+ * unset or until the tower is freed.
+ */
+void
+meta_texture_tower_set_base_texture (MetaTextureTower *tower,
+                                     CoglHandle        texture)
+{
+  int i;
+
+  g_return_if_fail (tower != NULL);
+
+  if (texture == tower->textures[0])
+    return;
+
+  if (tower->textures[0] != COGL_INVALID_HANDLE)
+    {
+      for (i = 1; i < tower->n_levels; i++)
+        {
+          if (tower->textures[i] != COGL_INVALID_HANDLE)
+            {
+              free_texture (tower->textures[i]);
+              tower->textures[i] = COGL_INVALID_HANDLE;
+            }
+
+          if (tower->fbos[i] != COGL_INVALID_HANDLE)
+            {
+              cogl_handle_unref (tower->fbos[i]);
+              tower->fbos[i] = COGL_INVALID_HANDLE;
+            }
+        }
+
+      cogl_handle_unref (tower->textures[0]);
+    }
+
+  tower->textures[0] = texture;
+
+  if (tower->textures[0] != COGL_INVALID_HANDLE)
+    {
+      int width, height;
+
+      cogl_handle_ref (tower->textures[0]);
+
+      width = cogl_texture_get_width (tower->textures[0]);
+      height = cogl_texture_get_height (tower->textures[0]);
+
+      tower->n_levels = 1 + MAX ((int)(M_LOG2E * log (width)), (int)(M_LOG2E * log (height)));
+      tower->n_levels = MIN(tower->n_levels, MAX_TEXTURE_LEVELS);
+
+      meta_texture_tower_update_area (tower, 0, 0, width, height);
+    }
+  else
+    {
+      tower->n_levels = 0;
+    }
+}
+
+/**
+ * meta_texture_tower_update_area:
+ * @tower: a MetaTextureTower
+ * @x: X coordinate of upper left of rectangle that changed
+ * @y: Y coordinate of upper left of rectangle that changed
+ * @width: width of rectangle that changed
+ * @height: height rectangle that changed
+ *
+ * Mark a region of the base texture as having changed; the next
+ * time a scaled down version of the base texture is retrieved,
+ * the appropriate area of the scaled down texture will be updated.
+ */
+void
+meta_texture_tower_update_area (MetaTextureTower *tower,
+                                int               x,
+                                int               y,
+                                int               width,
+                                int               height)
+{
+  int texture_width, texture_height;
+  Box invalid;
+  int i;
+
+  g_return_if_fail (tower != NULL);
+
+  texture_width = cogl_texture_get_width (tower->textures[0]);
+  texture_height = cogl_texture_get_height (tower->textures[0]);
+
+  invalid.x1 = x;
+  invalid.y1 = y;
+  invalid.x2 = x + width;
+  invalid.y2 = y + height;
+
+  for (i = 1; i < tower->n_levels; i++)
+    {
+      texture_width = MAX (1, texture_width / 2);
+      texture_height = MAX (1, texture_height / 2);
+
+      invalid.x1 = invalid.x1 / 2;
+      invalid.y1 = invalid.y1 / 2;
+      invalid.x2 = MIN (texture_width, (invalid.x2 + 1) / 2);
+      invalid.y2 = MIN (texture_height, (invalid.y2 + 1) / 2);
+
+      if (tower->invalid[i].x1 == tower->invalid[i].x2 ||
+          tower->invalid[i].y1 == tower->invalid[i].y2)
+        {
+          tower->invalid[i] = invalid;
+        }
+      else
+        {
+          tower->invalid[i].x1 = MIN (tower->invalid[i].x1, invalid.x1);
+          tower->invalid[i].y1 = MIN (tower->invalid[i].y1, invalid.y1);
+          tower->invalid[i].x2 = MAX (tower->invalid[i].x2, invalid.x2);
+          tower->invalid[i].y2 = MAX (tower->invalid[i].y2, invalid.y2);
+        }
+    }
+}
+
+/* It generally looks worse if we scale up a window texture by even a
+ * small amount than if we scale it down using bilinear filtering, so
+ * we always pick the *larger* adjacent level. */
+#define LOD_BIAS (-0.49)
+
+/* This determines the appropriate level of detail to use when drawing the
+ * texture, in a way that corresponds to what the GL specification does
+ * when mip-mapping. This is probably fancier and slower than what we need,
+ * but we do the computation only once each time we paint a window, and
+ * its easier to just use the equations from the specification than to
+ * come up with something simpler.
+ *
+ * If window is being painted at an angle from the viewer, then we have to
+ * pick a point in the texture; we use the middle of the texture (which is
+ * why the width/height are passed in.) This is not the normal case for
+ * Meta.
+ */
+static int
+get_paint_level (int width, int height)
+{
+  CoglMatrix projection, modelview, pm;
+  float v[4];
+  double viewport_width, viewport_height;
+  double u0, v0;
+  double xc, yc, wc;
+  double dxdu_, dxdv_, dydu_, dydv_;
+  double det_, det_sq;
+  double rho_sq;
+  double lambda;
+
+  /* See
+   * http://www.opengl.org/registry/doc/glspec32.core.20090803.pdf
+   * Section 3.8.9, p. 1.6.2. Here we have
+   *
+   *  u(x,y) = x_o;
+   *  v(x,y) = y_o;
+   *
+   * Since we are mapping 1:1 from object coordinates into pixel
+   * texture coordinates, the clip coordinates are:
+   *
+   *  (x_c)                               (x_o)        (u)
+   *  (y_c) = (M_projection)(M_modelview) (y_o) = (PM) (v)
+   *  (z_c)                               (z_o)        (0)
+   *  (w_c)                               (w_o)        (1)
+   */
+
+  cogl_get_projection_matrix (&projection);
+  cogl_get_modelview_matrix (&modelview);
+
+  cogl_matrix_multiply (&pm, &projection, &modelview);
+
+  cogl_get_viewport (v);
+  viewport_width = v[2];
+  viewport_height = v[3];
+
+  u0 = width / 2.;
+  v0 = height / 2.;
+
+  xc = pm.xx * u0 + pm.xy * v0 + pm.xw;
+  yc = pm.yx * u0 + pm.yy * v0 + pm.yw;
+  wc = pm.wx * u0 + pm.wy * v0 + pm.ww;
+
+  /* We'll simplify the equations below for a bit of micro-optimization.
+   * The commented out code is the unsimplified version.
+
+  // Partial derivates of window coordinates:
+  //
+  //  x_w = 0.5 * viewport_width * x_c / w_c + viewport_center_x
+  //  y_w = 0.5 * viewport_height * y_c / w_c + viewport_center_y
+  //
+  // with respect to u, v, using
+  // d(a/b)/dx = da/dx * (1/b) - a * db/dx / (b^2)
+
+  dxdu = 0.5 * viewport_width * (pm.xx - pm.wx * (xc/wc)) / wc;
+  dxdv = 0.5 * viewport_width * (pm.xy - pm.wy * (xc/wc)) / wc;
+  dydu = 0.5 * viewport_height * (pm.yx - pm.wx * (yc/wc)) / wc;
+  dydv = 0.5 * viewport_height * (pm.yy - pm.wy * (yc/wc)) / wc;
+
+  // Compute the inverse partials as the matrix inverse
+  det = dxdu * dydv - dxdv * dydu;
+
+  dudx =   dydv / det;
+  dudy = - dxdv / det;
+  dvdx = - dydu / det;
+  dvdy =   dvdu / det;
+
+  // Scale factor; maximum of the distance in texels for a change of 1 pixel
+  // in the X direction or 1 pixel in the Y direction
+  rho = MAX (sqrt (dudx * dudx + dvdx * dvdx), sqrt(dudy * dudy + dvdy * dvdy));
+
+  // Level of detail
+  lambda = log2 (rho) + LOD_BIAS;
+  */
+
+  /* dxdu * wc, etc */
+  dxdu_ = 0.5 * viewport_width * (pm.xx - pm.wx * (xc/wc));
+  dxdv_ = 0.5 * viewport_width * (pm.xy - pm.wy * (xc/wc));
+  dydu_ = 0.5 * viewport_height * (pm.yx - pm.wx * (yc/wc));
+  dydv_ = 0.5 * viewport_height * (pm.yy - pm.wy * (yc/wc));
+
+  /* det * wc^2 */
+  det_ = dxdu_ * dydv_ - dxdv_ * dydu_;
+  det_sq = det_ * det_;
+  if (det_sq == 0.0)
+    return -1;
+
+  /* (rho * det * wc)^2 */
+  rho_sq = MAX (dydv_ * dydv_ + dydu_ * dydu_, dxdv_ * dxdv_ + dxdu_ * dxdu_);
+  lambda = 0.5 * M_LOG2E * log (rho_sq * wc * wc / det_sq) + LOD_BIAS;
+
+#if 0
+  g_print ("%g %g %g\n", 0.5 * viewport_width * pm.xx / pm.ww, 0.5 * viewport_height * pm.yy / pm.ww, lambda);
+#endif
+
+  if (lambda <= 0.)
+    return 0;
+  else
+    return (int)(0.5 + lambda);
+}
+
+static gboolean
+is_power_of_two (int x)
+{
+  return (x & (x - 1)) == 0;
+}
+
+static void
+texture_tower_create_texture (MetaTextureTower *tower,
+                              int               level,
+                              int               width,
+                              int               height)
+{
+  if ((!is_power_of_two (width) || !is_power_of_two (height)) &&
+      texture_is_rectangle (tower->textures[level - 1]))
+    {
+      GLuint tex = 0;
+
+      glGenTextures (1, &tex);
+      glBindTexture (GL_TEXTURE_RECTANGLE_ARB, tex);
+      glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0,
+                    GL_RGBA, width,height,
+#if TEXTURE_FORMAT == COGL_PIXEL_FORMAT_BGRA_8888_PRE
+                    0, GL_BGRA, GL_UNSIGNED_BYTE,
+#else /* assume big endian */
+                    0, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV,
+#endif
+                    NULL);
+
+      tower->textures[level] = cogl_texture_new_from_foreign (tex, GL_TEXTURE_RECTANGLE_ARB,
+                                                              width, height,
+                                                              0, 0,
+                                                              TEXTURE_FORMAT);
+    }
+  else
+    {
+      tower->textures[level] = cogl_texture_new_with_size (width, height,
+                                                           COGL_TEXTURE_NO_AUTO_MIPMAP,
+                                                           TEXTURE_FORMAT);
+    }
+
+  tower->invalid[level].x1 = 0;
+  tower->invalid[level].y1 = 0;
+  tower->invalid[level].x2 = width;
+  tower->invalid[level].y2 = height;
+}
+
+static gboolean
+texture_tower_revalidate_fbo (MetaTextureTower *tower,
+                              int               level)
+{
+  CoglHandle source_texture = tower->textures[level - 1];
+  int source_texture_width = cogl_texture_get_width (source_texture);
+  int source_texture_height = cogl_texture_get_height (source_texture);
+  CoglHandle dest_texture = tower->textures[level];
+  int dest_texture_width = cogl_texture_get_width (dest_texture);
+  int dest_texture_height = cogl_texture_get_height (dest_texture);
+  Box *invalid = &tower->invalid[level];
+  CoglMatrix modelview;
+
+  if (tower->fbos[level] == COGL_INVALID_HANDLE)
+    {
+      /* Work around http://bugzilla.openedhand.com/show_bug.cgi?id=2110 */
+      cogl_flush();
+
+      tower->fbos[level] = cogl_offscreen_new_to_texture (dest_texture);
+    }
+
+  if (tower->fbos[level] == COGL_INVALID_HANDLE)
+    return FALSE;
+
+  cogl_push_framebuffer (tower->fbos[level]);
+
+  cogl_ortho (0, dest_texture_width, dest_texture_height, 0, -1., 1.);
+
+  cogl_matrix_init_identity (&modelview);
+  cogl_set_modelview_matrix (&modelview);
+
+  cogl_set_source_texture (tower->textures[level - 1]);
+  cogl_rectangle_with_texture_coords (invalid->x1, invalid->y1,
+                                      invalid->x2, invalid->y2,
+                                      (2. * invalid->x1) / source_texture_width,
+                                      (2. * invalid->y1) / source_texture_height,
+                                      (2. * invalid->x2) / source_texture_width,
+                                      (2. * invalid->y2) / source_texture_height);
+
+  cogl_pop_framebuffer ();
+
+  return TRUE;
+}
+
+static void
+fill_copy (guchar       *buf,
+           const guchar *source,
+           int           width)
+{
+  memcpy (buf, source, width * 4);
+}
+
+static void
+fill_scale_down (guchar       *buf,
+                 const guchar *source,
+                 int           width)
+{
+  while (width > 1)
+    {
+      buf[0] = (source[0] + source[4]) / 2;
+      buf[1] = (source[1] + source[5]) / 2;
+      buf[2] = (source[2] + source[6]) / 2;
+      buf[3] = (source[3] + source[7]) / 2;
+
+      buf += 4;
+      source += 8;
+      width -= 2;
+    }
+
+  if (width > 0)
+    {
+      buf[0] = source[0] / 2;
+      buf[1] = source[1] / 2;
+      buf[2] = source[2] / 2;
+      buf[3] = source[3] / 2;
+    }
+}
+
+static void
+texture_tower_revalidate_client (MetaTextureTower *tower,
+                                 int               level)
+{
+  CoglHandle source_texture = tower->textures[level - 1];
+  int source_texture_width = cogl_texture_get_width (source_texture);
+  int source_texture_height = cogl_texture_get_height (source_texture);
+  guint source_rowstride;
+  guchar *source_data;
+  CoglHandle dest_texture = tower->textures[level];
+  int dest_texture_width = cogl_texture_get_width (dest_texture);
+  int dest_texture_height = cogl_texture_get_height (dest_texture);
+  int dest_x = tower->invalid[level].x1;
+  int dest_y = tower->invalid[level].y1;
+  int dest_width = tower->invalid[level].x2 - tower->invalid[level].x1;
+  int dest_height = tower->invalid[level].y2 - tower->invalid[level].y1;
+  guchar *dest_data;
+  guchar *source_tmp1 = NULL, *source_tmp2 = NULL;
+  int i, j;
+
+  source_rowstride = source_texture_width * 4;
+
+  source_data = g_malloc (source_texture_height * source_rowstride);
+  cogl_texture_get_data (source_texture, TEXTURE_FORMAT, source_rowstride,
+                         source_data);
+
+  dest_data = g_malloc (dest_height * dest_width * 4);
+
+  if (dest_texture_height < source_texture_height)
+    {
+      source_tmp1 = g_malloc (dest_width * 4);
+      source_tmp2 = g_malloc (dest_width * 4);
+    }
+
+  for (i = 0; i < dest_height; i++)
+    {
+      guchar *dest_row = dest_data + i * dest_width * 4;
+      if (dest_texture_height < source_texture_height)
+        {
+          guchar *source1, *source2;
+          guchar *dest;
+
+          if (dest_texture_width < source_texture_width)
+            {
+              fill_scale_down (source_tmp1,
+                               source_data + ((i + dest_y) * 2) * source_rowstride + dest_x * 2 * 4,
+                               dest_width * 2);
+              fill_scale_down (source_tmp2,
+                               source_data + ((i + dest_y) * 2 + 1) * source_rowstride + dest_x * 2 * 4,
+                               dest_width * 2);
+            }
+          else
+            {
+              fill_copy (source_tmp1,
+                         source_data + ((i + dest_y) * 2) * source_rowstride + dest_x * 4,
+                         dest_width);
+              fill_copy (source_tmp2,
+                         source_data + ((i + dest_y) * 2 + 1) * source_rowstride + dest_x * 4,
+                         dest_width);
+            }
+
+          source1 = source_tmp1;
+          source2 = source_tmp2;
+
+          dest = dest_row;
+          for (j = 0; j < dest_width * 4; j++)
+            *(dest++) = (*(source1++) + *(source2++)) / 2;
+        }
+      else
+        {
+          if (dest_texture_width < source_texture_width)
+            fill_scale_down (dest_row,
+                             source_data + (i + dest_y) * source_rowstride + dest_x * 2 * 4,
+                             dest_width * 2);
+          else
+            fill_copy (dest_row,
+                       source_data + (i + dest_y) * source_rowstride,
+                       dest_width);
+        }
+    }
+
+  cogl_texture_set_region (dest_texture,
+                           0, 0,
+                           dest_x, dest_y,
+                           dest_width, dest_height,
+                           dest_width, dest_height,
+                           TEXTURE_FORMAT,
+                           4 * dest_width,
+                           dest_data);
+
+  if (dest_height < source_texture_height)
+    {
+      g_free (source_tmp1);
+      g_free (source_tmp2);
+    }
+
+  g_free (source_data);
+  g_free (dest_data);
+}
+
+static void
+texture_tower_revalidate (MetaTextureTower *tower,
+                          int               level)
+{
+  if (!texture_tower_revalidate_fbo (tower, level))
+    texture_tower_revalidate_client (tower, level);
+}
+
+/**
+ * meta_texture_tower_get_paint_texture:
+ * @tower: a MetaTextureTower
+ *
+ * Gets the texture from the tower that best matches the current
+ * rendering scale. (On the assumption here the texture is going to
+ * be rendered with vertex coordinates that correspond to its
+ * size in pixels, so a 200x200 texture will be rendered on the
+ * rectangle (0, 0, 200, 200).
+ *
+ * Return value: the COGL texture handle to use for painting, or
+ *  %COGL_INVALID_HANDLE if no base texture has yet been set.
+ */
+CoglHandle
+meta_texture_tower_get_paint_texture (MetaTextureTower *tower)
+{
+  int texture_width, texture_height;
+  int level;
+
+  g_return_val_if_fail (tower != NULL, COGL_INVALID_HANDLE);
+
+  if (tower->textures[0] == COGL_INVALID_HANDLE)
+    return COGL_INVALID_HANDLE;
+
+  texture_width = cogl_texture_get_width (tower->textures[0]);
+  texture_height = cogl_texture_get_height (tower->textures[0]);
+
+  level = get_paint_level(texture_width, texture_height);
+  if (level < 0) /* singular paint matrix, scaled to nothing */
+    return COGL_INVALID_HANDLE;
+  level = MIN (level, tower->n_levels - 1);
+
+  if (tower->textures[level] == COGL_INVALID_HANDLE ||
+      (tower->invalid[level].x2 != tower->invalid[level].x1 &&
+       tower->invalid[level].y2 != tower->invalid[level].y1))
+    {
+      int i;
+
+      for (i = 1; i <= level; i++)
+       {
+         /* Use "floor" convention here to be consistent with the NPOT texture extension */
+         texture_width = MAX (1, texture_width / 2);
+         texture_height = MAX (1, texture_height / 2);
+
+         if (tower->textures[i] == COGL_INVALID_HANDLE)
+           texture_tower_create_texture (tower, i, texture_width, texture_height);
+       }
+
+      for (i = 1; i <= level; i++)
+       {
+         if (tower->invalid[level].x2 != tower->invalid[level].x1 &&
+             tower->invalid[level].y2 != tower->invalid[level].y1)
+           texture_tower_revalidate (tower, i);
+       }
+   }
+
+  return tower->textures[level];
+}

src/compositor/meta-texture-tower.h

@@ -0,0 +1,69 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+/*
+ * MetaTextureTower
+ *
+ * Mipmap emulation by creation of scaled down images
+ *
+ * Copyright (C) 2009 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+#ifndef __META_TEXTURE_TOWER_H__
+#define __META_TEXTURE_TOWER_H__
+
+#include <clutter/clutter.h>
+
+G_BEGIN_DECLS
+
+/**
+ * SECTION:MetaTextureTower
+ * @short_description: mipmap emulation by creation of scaled down images
+ *
+ * A #MetaTextureTower is used to get good looking scaled down images when
+ * we can't use the GL drivers mipmap support. There are two separate reasons
+ *
+ *  - Some cards (including radeon cards <= r5xx) only support
+ *    TEXTURE_RECTANGLE_ARB and not NPOT textures. Rectangular textures
+ *    are defined not to support mipmapping.
+ *  - Even when NPOT textures are available, the combination of NPOT
+ *    textures, texture_from_pixmap, and mipmapping doesn't typically
+ *    work, since the X server doesn't allocate pixmaps in the right
+ *    layout for mipmapping.
+ *
+ * So, what we do is create the "mipmap" levels ourselves by successive
+ * power-of-two scaledowns, and when rendering pick the single texture
+ * that best matches the scale we are rendering at. (Since we aren't
+ * typically using perspective transforms, we'll frequently have a single
+ * scale for the entire texture.)
+ */
+
+typedef struct _MetaTextureTower MetaTextureTower;
+
+MetaTextureTower *meta_texture_tower_new               (void);
+void              meta_texture_tower_free              (MetaTextureTower *tower);
+void              meta_texture_tower_set_base_texture  (MetaTextureTower *tower,
+                                                        CoglHandle        texture);
+void              meta_texture_tower_update_area       (MetaTextureTower *tower,
+                                                        int               x,
+                                                        int               y,
+                                                        int               width,
+                                                        int               height);
+CoglHandle        meta_texture_tower_get_paint_texture (MetaTextureTower *tower);
+
+G_BEGIN_DECLS
+
+#endif /* __META_TEXTURE_TOWER_H__ */

src/compositor/meta-window-actor-private.h

@@ -0,0 +1,53 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+#ifndef META_WINDOW_ACTOR_PRIVATE_H
+#define META_WINDOW_ACTOR_PRIVATE_H
+
+#include <config.h>
+
+#include <X11/extensions/Xdamage.h>
+#include "compositor-mutter.h"
+
+MetaWindowActor *meta_window_actor_new (MetaWindow *window);
+
+void meta_window_actor_destroy   (MetaWindowActor *self);
+
+void meta_window_actor_show (MetaWindowActor *self,
+                             MetaCompEffect   effect);
+void meta_window_actor_hide (MetaWindowActor *self,
+                             MetaCompEffect   effect);
+
+void meta_window_actor_maximize   (MetaWindowActor *self,
+                                   MetaRectangle   *old_rect,
+                                   MetaRectangle   *new_rect);
+void meta_window_actor_unmaximize (MetaWindowActor *self,
+                                   MetaRectangle   *old_rect,
+                                   MetaRectangle   *new_rect);
+
+void meta_window_actor_process_damage (MetaWindowActor    *self,
+                                       XDamageNotifyEvent *event);
+void meta_window_actor_pre_paint      (MetaWindowActor    *self);
+
+void meta_window_actor_invalidate_shadow (MetaWindowActor *self);
+
+gboolean meta_window_actor_effect_in_progress  (MetaWindowActor *self);
+void     meta_window_actor_sync_actor_position (MetaWindowActor *self);
+void     meta_window_actor_sync_visibility     (MetaWindowActor *self);
+void     meta_window_actor_update_shape        (MetaWindowActor *self,
+                                                gboolean         shaped);
+void     meta_window_actor_update_opacity      (MetaWindowActor *self);
+void     meta_window_actor_mapped              (MetaWindowActor *self);
+void     meta_window_actor_unmapped            (MetaWindowActor *self);
+
+cairo_region_t *meta_window_actor_get_obscured_region (MetaWindowActor *self);
+
+void meta_window_actor_set_visible_region         (MetaWindowActor *self,
+                                                   cairo_region_t  *visible_region);
+void meta_window_actor_set_visible_region_beneath (MetaWindowActor *self,
+                                                   cairo_region_t  *beneath_region);
+void meta_window_actor_reset_visible_regions      (MetaWindowActor *self);
+
+void meta_window_actor_effect_completed (MetaWindowActor *actor,
+                                         gulong           event);
+
+#endif /* META_WINDOW_ACTOR_PRIVATE_H */

src/compositor/meta-window-group.c

@@ -1,24 +1,26 @@
 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
 
+#include <config.h>
+
 #define _ISOC99_SOURCE /* for roundf */
 #include <math.h>
 
-#include "mutter-window-private.h"
-#include "mutter-window-group.h"
+#include "meta-window-actor-private.h"
+#include "meta-window-group.h"
 
-struct _MutterWindowGroupClass
+struct _MetaWindowGroupClass
 {
   ClutterGroupClass parent_class;
 };
 
-struct _MutterWindowGroup
+struct _MetaWindowGroup
 {
   ClutterGroup parent;
 
   MetaScreen *screen;
 };
 
-G_DEFINE_TYPE (MutterWindowGroup, mutter_window_group, CLUTTER_TYPE_GROUP);
+G_DEFINE_TYPE (MetaWindowGroup, meta_window_group, CLUTTER_TYPE_GROUP);
 
 /* We want to find out if the window is "close enough" to
  * 1:1 transform. We do that by converting the transformed coordinates
@@ -96,11 +98,11 @@ actor_is_untransformed (ClutterActor *actor,
 }
 
 static void
-mutter_window_group_paint (ClutterActor *actor)
+meta_window_group_paint (ClutterActor *actor)
 {
-  MutterWindowGroup *window_group = MUTTER_WINDOW_GROUP (actor);
-  GdkRegion *visible_region;
-  GdkRectangle screen_rect = { 0 };
+  MetaWindowGroup *window_group = META_WINDOW_GROUP (actor);
+  cairo_region_t *visible_region;
+  cairo_rectangle_int_t screen_rect = { 0 };
   GList *children, *l;
 
   /* We walk the list from top to bottom (opposite of painting order),
@@ -116,77 +118,77 @@ mutter_window_group_paint (ClutterActor *actor)
    * optimization, however.)
    */
   meta_screen_get_size (window_group->screen, &screen_rect.width, &screen_rect.height);
-  visible_region = gdk_region_rectangle (&screen_rect);
+  visible_region = cairo_region_create_rectangle (&screen_rect);
 
   for (l = children; l; l = l->next)
     {
-      MutterWindow *cw;
+      MetaWindowActor *window_actor;
       gboolean x, y;
 
-      if (!MUTTER_IS_WINDOW (l->data) || !CLUTTER_ACTOR_IS_VISIBLE (l->data))
+      if (!META_IS_WINDOW_ACTOR (l->data) || !CLUTTER_ACTOR_IS_VISIBLE (l->data))
         continue;
 
-      cw = l->data;
+      window_actor = l->data;
 
-      if (!actor_is_untransformed (CLUTTER_ACTOR (cw), &x, &y))
+      if (!actor_is_untransformed (CLUTTER_ACTOR (window_actor), &x, &y))
         continue;
 
       /* Temporarily move to the coordinate system of the actor */
-      gdk_region_offset (visible_region, - x, - y);
+      cairo_region_translate (visible_region, - x, - y);
 
-      mutter_window_set_visible_region (cw, visible_region);
+      meta_window_actor_set_visible_region (window_actor, visible_region);
 
-      if (clutter_actor_get_paint_opacity (actor) == 0xff)
+      if (clutter_actor_get_paint_opacity (CLUTTER_ACTOR (window_actor)) == 0xff)
         {
-          GdkRegion *obscured_region = mutter_window_get_obscured_region (cw);
+          cairo_region_t *obscured_region = meta_window_actor_get_obscured_region (window_actor);
           if (obscured_region)
-            gdk_region_subtract (visible_region, obscured_region);
+            cairo_region_subtract (visible_region, obscured_region);
         }
 
-      mutter_window_set_visible_region_beneath (cw, visible_region);
-      gdk_region_offset (visible_region, x, y);
+      meta_window_actor_set_visible_region_beneath (window_actor, visible_region);
+      cairo_region_translate (visible_region, x, y);
     }
 
-  gdk_region_destroy (visible_region);
+  cairo_region_destroy (visible_region);
 
-  CLUTTER_ACTOR_CLASS (mutter_window_group_parent_class)->paint (actor);
+  CLUTTER_ACTOR_CLASS (meta_window_group_parent_class)->paint (actor);
 
   /* Now that we are done painting, unset the visible regions (they will
    * mess up painting clones of our actors)
    */
   for (l = children; l; l = l->next)
     {
-      MutterWindow *cw;
+      MetaWindowActor *window_actor;
 
-      if (!MUTTER_IS_WINDOW (l->data))
+      if (!META_IS_WINDOW_ACTOR (l->data))
         continue;
 
-      cw = l->data;
-      mutter_window_reset_visible_regions (cw);
+      window_actor = l->data;
+      meta_window_actor_reset_visible_regions (window_actor);
     }
 
   g_list_free (children);
 }
 
 static void
-mutter_window_group_class_init (MutterWindowGroupClass *klass)
+meta_window_group_class_init (MetaWindowGroupClass *klass)
 {
   ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
 
-  actor_class->paint = mutter_window_group_paint;
+  actor_class->paint = meta_window_group_paint;
 }
 
 static void
-mutter_window_group_init (MutterWindowGroup *window_group)
+meta_window_group_init (MetaWindowGroup *window_group)
 {
 }
 
 ClutterActor *
-mutter_window_group_new (MetaScreen *screen)
+meta_window_group_new (MetaScreen *screen)
 {
-  MutterWindowGroup *window_group;
+  MetaWindowGroup *window_group;
 
-  window_group = g_object_new (MUTTER_TYPE_WINDOW_GROUP, NULL);
+  window_group = g_object_new (META_TYPE_WINDOW_GROUP, NULL);
 
   window_group->screen = screen;
 

src/compositor/meta-window-group.h

@@ -1,17 +1,17 @@
 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
 
-#ifndef MUTTER_WINDOW_GROUP_H
-#define MUTTER_WINDOW_GROUP_H
+#ifndef META_WINDOW_GROUP_H
+#define META_WINDOW_GROUP_H
 
 #include <clutter/clutter.h>
 
 #include "screen.h"
 
 /**
- * MutterWindowGroup:
+ * MetaWindowGroup:
  *
  * This class is a subclass of ClutterGroup with special handling for
- * MutterWindow when painting the group. When we are painting a stack
+ * MetaWindowActor when painting the group. When we are painting a stack
  * of 5-10 maximized windows, the standard bottom-to-top method of
  * drawing every actor results in a tremendous amount of overdraw
  * and can easily max out the available memory bandwidth on a low-end
@@ -21,7 +21,7 @@
  * The basic technique applied here is to do a pre-pass before painting
  * where we walk window from top to bottom and compute the visible area
  * at each step by subtracting out the windows above it. The visible
- * area is passed to MutterWindow which uses it to clip the portion of
+ * area is passed to MetaWindowActor which uses it to clip the portion of
  * the window which drawn and avoid redrawing the shadow if it is completely
  * obscured.
  *
@@ -34,19 +34,19 @@
  * we have lots of memory and bandwidth.)
  */
 
-#define MUTTER_TYPE_WINDOW_GROUP            (mutter_window_group_get_type ())
-#define MUTTER_WINDOW_GROUP(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), MUTTER_TYPE_WINDOW_GROUP, MutterWindowGroup))
-#define MUTTER_WINDOW_GROUP_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), MUTTER_TYPE_WINDOW_GROUP, MutterWindowGroupClass))
-#define MUTTER_IS_WINDOW_GROUP(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), MUTTER_TYPE_WINDOW_GROUP))
-#define MUTTER_IS_WINDOW_GROU_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE ((klass), MUTTER_TYPE_WINDOW_GROUP))
-#define MUTTER_WINDOW_GROUP_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), MUTTER_TYPE_WINDOW_GROUP, MutterWindowGroupClass))
+#define META_TYPE_WINDOW_GROUP            (meta_window_group_get_type ())
+#define META_WINDOW_GROUP(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_WINDOW_GROUP, MetaWindowGroup))
+#define META_WINDOW_GROUP_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), META_TYPE_WINDOW_GROUP, MetaWindowGroupClass))
+#define META_IS_WINDOW_GROUP(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_WINDOW_GROUP))
+#define META_IS_WINDOW_GROUP_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE ((klass), META_TYPE_WINDOW_GROUP))
+#define META_WINDOW_GROUP_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), META_TYPE_WINDOW_GROUP, MetaWindowGroupClass))
 
-typedef struct _MutterWindowGroup        MutterWindowGroup;
-typedef struct _MutterWindowGroupClass   MutterWindowGroupClass;
-typedef struct _MutterWindowGroupPrivate MutterWindowGroupPrivate;
+typedef struct _MetaWindowGroup        MetaWindowGroup;
+typedef struct _MetaWindowGroupClass   MetaWindowGroupClass;
+typedef struct _MetaWindowGroupPrivate MetaWindowGroupPrivate;
 
-GType mutter_window_group_get_type (void);
+GType meta_window_group_get_type (void);
 
-ClutterActor *mutter_window_group_new (MetaScreen *screen);
+ClutterActor *meta_window_group_new (MetaScreen *screen);
 
-#endif /* MUTTER_WINDOW_GROUP_H */
+#endif /* META_WINDOW_GROUP_H */

src/compositor/meta-window-shape.c

@@ -0,0 +1,253 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+/*
+ * MetaWindowShape
+ *
+ * Extracted invariant window shape
+ *
+ * Copyright (C) 2010 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+#include <string.h>
+
+#include "meta-window-shape.h"
+#include "region-utils.h"
+
+struct _MetaWindowShape
+{
+  guint ref_count;
+
+  int top, right, bottom, left;
+  int n_rectangles;
+  cairo_rectangle_int_t *rectangles;
+  guint hash;
+};
+
+MetaWindowShape *
+meta_window_shape_new (cairo_region_t *region)
+{
+  MetaWindowShape *shape;
+  MetaRegionIterator iter;
+  cairo_rectangle_int_t extents;
+  int max_yspan_y1 = 0;
+  int max_yspan_y2 = 0;
+  int max_xspan_x1 = -1;
+  int max_xspan_x2 = -1;
+  guint hash;
+
+  shape = g_slice_new0 (MetaWindowShape);
+  shape->ref_count = 1;
+
+  cairo_region_get_extents (region, &extents);
+
+  shape->n_rectangles = cairo_region_num_rectangles (region);
+
+  if (shape->n_rectangles == 0)
+    {
+      shape->rectangles = NULL;
+      shape->top = shape->right = shape->bottom = shape->left = 0;
+      shape->hash = 0;
+      return shape;
+    }
+
+  for (meta_region_iterator_init (&iter, region);
+       !meta_region_iterator_at_end (&iter);
+       meta_region_iterator_next (&iter))
+    {
+      int max_line_xspan_x1 = -1;
+      int max_line_xspan_x2 = -1;
+
+      if (iter.rectangle.width > max_line_xspan_x2 - max_line_xspan_x1)
+        {
+          max_line_xspan_x1 = iter.rectangle.x;
+          max_line_xspan_x2 = iter.rectangle.x + iter.rectangle.width;
+        }
+
+      if (iter.line_end)
+        {
+          if (iter.rectangle.height > max_yspan_y2 - max_yspan_y1)
+            {
+              max_yspan_y1 = iter.rectangle.y;
+              max_yspan_y2 = iter.rectangle.y + iter.rectangle.height;
+            }
+
+          if (max_xspan_x1 < 0) /* First line */
+            {
+              max_xspan_x1 = max_line_xspan_x1;
+              max_xspan_x2 = max_line_xspan_x2;
+            }
+          else
+            {
+              max_xspan_x1 = MAX (max_xspan_x1, max_line_xspan_x1);
+              max_xspan_x2 = MIN (max_xspan_x2, max_line_xspan_x2);
+
+              if (max_xspan_x2 < max_xspan_x1)
+                max_xspan_x2 = max_xspan_x1;
+            }
+        }
+    }
+
+#if 0
+  g_print ("xspan: %d -> %d, yspan: %d -> %d\n",
+           max_xspan_x1, max_xspan_x2,
+           max_yspan_y1, max_yspan_y2);
+#endif
+
+  shape->top = max_yspan_y1 - extents.y;
+  shape->right = extents.x + extents.width - max_xspan_x2;
+  shape->bottom = extents.y + extents.height - max_yspan_y2;
+  shape->left = max_xspan_x1 - extents.x;
+
+  shape->rectangles = g_new (cairo_rectangle_int_t, shape->n_rectangles);
+
+  hash = 0;
+  for (meta_region_iterator_init (&iter, region);
+       !meta_region_iterator_at_end (&iter);
+       meta_region_iterator_next (&iter))
+    {
+      int x1, x2, y1, y2;
+
+      x1 = iter.rectangle.x;
+      x2 = iter.rectangle.x + iter.rectangle.width;
+      y1 = iter.rectangle.y;
+      y2 = iter.rectangle.y + iter.rectangle.height;
+
+      if (x1 > max_xspan_x1)
+        x1 -= MIN (x1, max_xspan_x2 - 1) - max_xspan_x1;
+      if (x2 > max_xspan_x1)
+        x2 -= MIN (x2, max_xspan_x2 - 1) - max_xspan_x1;
+      if (y1 > max_yspan_y1)
+        y1 -= MIN (y1, max_yspan_y2 - 1) - max_yspan_y1;
+      if (y2 > max_yspan_y1)
+        y2 -= MIN (y2, max_yspan_y2 - 1) - max_yspan_y1;
+
+      shape->rectangles[iter.i].x = x1 - extents.x;
+      shape->rectangles[iter.i].y = y1 - extents.y;
+      shape->rectangles[iter.i].width = x2 - x1;
+      shape->rectangles[iter.i].height = y2 - y1;
+
+#if 0
+      g_print ("%d: +%d+%dx%dx%d => +%d+%dx%dx%d\n",
+               i, iter.rectangle.x, iter.rectangle.y, iter.rectangle.width, iter.rectangle.height,
+               shape->rectangles[i].x, shape->rectangles[i].y, shape->rectangles[i].width, shape->rectangles[i].height);
+#endif
+
+      hash = hash * 31 + x1 * 17 + x2 * 27 + y1 * 37 + y2 * 43;
+    }
+
+  shape->hash = hash;
+
+#if 0
+  g_print ("%d %d %d %d: %#x\n\n", shape->top, shape->right, shape->bottom, shape->left, shape->hash);
+#endif
+
+  return shape;
+}
+
+MetaWindowShape *
+meta_window_shape_ref (MetaWindowShape *shape)
+{
+  shape->ref_count++;
+
+  return shape;
+}
+
+void
+meta_window_shape_unref (MetaWindowShape *shape)
+{
+  shape->ref_count--;
+  if (shape->ref_count == 0)
+    {
+      g_free (shape->rectangles);
+      g_slice_free (MetaWindowShape, shape);
+    }
+}
+
+guint
+meta_window_shape_hash (MetaWindowShape *shape)
+{
+  return shape->hash;
+}
+
+gboolean
+meta_window_shape_equal (MetaWindowShape *shape_a,
+                         MetaWindowShape *shape_b)
+{
+  if (shape_a->n_rectangles != shape_b->n_rectangles)
+    return FALSE;
+
+  return memcmp (shape_a->rectangles, shape_b->rectangles,
+                 sizeof (cairo_rectangle_int_t) * shape_a->n_rectangles) == 0;
+}
+
+void
+meta_window_shape_get_borders (MetaWindowShape *shape,
+                               int             *border_top,
+                               int             *border_right,
+                               int             *border_bottom,
+                               int             *border_left)
+{
+  if (border_top)
+    *border_top = shape->top;
+  if (border_right)
+    *border_right = shape->right;
+  if (border_bottom)
+    *border_bottom = shape->bottom;
+  if (border_left)
+    *border_left = shape->left;
+}
+
+/**
+ * meta_window_shape_to_region:
+ * @shape: a #MetaWindowShape
+ * @center_width: size of the central region horizontally
+ * @center_height: size of the central region vertically
+ *
+ * Converts the shape to to a cairo_region_t using the given width
+ * and height for the central scaled region.
+ *
+ * Return value: a newly created region
+ */
+cairo_region_t *
+meta_window_shape_to_region (MetaWindowShape *shape,
+                             int              center_width,
+                             int              center_height)
+{
+  cairo_region_t *region;
+  int i;
+
+  region = cairo_region_create ();
+
+  for (i = 0; i < shape->n_rectangles; i++)
+    {
+      cairo_rectangle_int_t rect = shape->rectangles[i];
+
+      if (rect.x <= shape->left && rect.x + rect.width >= shape->left + 1)
+        rect.width += center_width;
+      else if (rect.x >= shape->left + 1)
+        rect.x += center_width;
+
+      if (rect.y <= shape->top && rect.y + rect.height >= shape->top + 1)
+        rect.height += center_height;
+      else if (rect.y >= shape->top + 1)
+        rect.y += center_height;
+
+      cairo_region_union_rectangle (region, &rect);
+    }
+
+  return region;
+}
+

src/compositor/meta-window-shape.h

@@ -0,0 +1,60 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+/*
+ * MetaWindowShape
+ *
+ * Extracted invariant window shape
+ *
+ * Copyright (C) 2010 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+#ifndef __META_WINDOW_SHAPE_H__
+#define __META_WINDOW_SHAPE_H__
+
+#include <cairo.h>
+#include <glib.h>
+
+/**
+ * MetaWindowShape:
+ * #MetaWindowShape represents a 9-sliced region with borders on all sides that
+ * are unscaled, and a constant central region that is scaled. For example,
+ * if you the regions representing two windows that around rounded rectangles,
+ * with the same corner regions, but different sizes, they have the
+ * same MetaWindowShape.
+ *
+ * #MetaWindowShape is designed to be used as part of a hash table key, so has
+ * efficient hash and equal functions.
+ */
+typedef struct _MetaWindowShape MetaWindowShape;
+
+MetaWindowShape *  meta_window_shape_new         (cairo_region_t  *region);
+MetaWindowShape *  meta_window_shape_ref         (MetaWindowShape *shape);
+void               meta_window_shape_unref       (MetaWindowShape *shape);
+guint              meta_window_shape_hash        (MetaWindowShape *shape);
+gboolean           meta_window_shape_equal       (MetaWindowShape *shape_a,
+                                                  MetaWindowShape *shape_b);
+void               meta_window_shape_get_borders (MetaWindowShape *shape,
+                                                  int             *border_top,
+                                                  int             *border_right,
+                                                  int             *border_bottom,
+                                                  int             *border_left);
+cairo_region_t    *meta_window_shape_to_region   (MetaWindowShape *shape,
+                                                  int              center_width,
+                                                  int              center_height);
+
+#endif /* __META_WINDOW_SHAPE_H __*/
+

src/compositor/mutter-plugin-manager.h

@@ -1,63 +0,0 @@
-/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
-
-/*
- * Copyright (c) 2008 Intel Corp.
- *
- * Author: Tomas Frydrych <tf@linux.intel.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
- */
-
-#ifndef MUTTER_PLUGIN_MANAGER_H_
-#define MUTTER_PLUGIN_MANAGER_H_
-
-#include "types.h"
-#include "screen.h"
-
-#define  MUTTER_PLUGIN_FROM_MANAGER_
-#include "mutter-plugin.h"
-#undef   MUTTER_PLUGIN_FROM_MANAGER_
-
-typedef struct MutterPluginManager MutterPluginManager;
-
-MutterPluginManager * mutter_plugin_manager_new (MetaScreen *screen);
-gboolean mutter_plugin_manager_load (MutterPluginManager *mgr);
-gboolean mutter_plugin_manager_initialize (MutterPluginManager *plugin_mgr);
-gboolean mutter_plugin_manager_event_simple (MutterPluginManager *mgr,
-					     MutterWindow  *actor,
-					     unsigned long    event);
-
-gboolean mutter_plugin_manager_event_maximize (MutterPluginManager *mgr,
-					       MutterWindow  *actor,
-					       unsigned long    event,
-					       gint             target_x,
-					       gint             target_y,
-					       gint             target_width,
-					       gint		target_height);
-void mutter_plugin_manager_update_workspaces (MutterPluginManager *mgr);
-
-void mutter_plugin_manager_update_workspace (MutterPluginManager *mgr, MetaWorkspace *w);
-
-gboolean mutter_plugin_manager_switch_workspace (MutterPluginManager *mgr,
-						 const GList **actors,
-						 gint          from,
-						 gint          to,
-						 MetaMotionDirection direction);
-
-gboolean mutter_plugin_manager_xevent_filter (MutterPluginManager *mgr,
-					      XEvent *xev);
-
-#endif

src/compositor/mutter-plugin.c

@@ -1,497 +0,0 @@
-/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
-
-/*
- * Copyright (c) 2008 Intel Corp.
- *
- * Author: Tomas Frydrych <tf@linux.intel.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
- */
-
-#include "mutter-plugin.h"
-#include "screen.h"
-#include "display.h"
-
-#include <string.h>
-#include <X11/Xlib.h>
-#include <X11/extensions/Xfixes.h>
-#include <X11/extensions/shape.h>
-#include <clutter/x11/clutter-x11.h>
-
-#include "compositor-private.h"
-#include "mutter-window-private.h"
-
-G_DEFINE_ABSTRACT_TYPE (MutterPlugin, mutter_plugin, G_TYPE_OBJECT);
-
-#define MUTTER_PLUGIN_GET_PRIVATE(obj) \
-(G_TYPE_INSTANCE_GET_PRIVATE ((obj), MUTTER_TYPE_PLUGIN, MutterPluginPrivate))
-
-enum
-{
-  PROP_0,
-  PROP_SCREEN,
-  PROP_PARAMS,
-  PROP_FEATURES,
-  PROP_DISABLED,
-  PROP_DEBUG_MODE,
-};
-
-struct _MutterPluginPrivate
-{
-  MetaScreen   *screen;
-  gchar        *params;
-  gulong        features;
-
-  gint          running;
-
-  gboolean      disabled : 1;
-  gboolean      debug    : 1;
-};
-
-static void
-mutter_plugin_dispose (GObject *object)
-{
-  G_OBJECT_CLASS (mutter_plugin_parent_class)->dispose (object);
-}
-
-static void
-mutter_plugin_finalize (GObject *object)
-{
-  MutterPluginPrivate *priv = MUTTER_PLUGIN (object)->priv;
-
-  g_free (priv->params);
-  priv->params = NULL;
-
-  G_OBJECT_CLASS (mutter_plugin_parent_class)->finalize (object);
-}
-
-static void
-mutter_plugin_parse_params (MutterPlugin *plugin)
-{
-  char                  *p;
-  gulong                features = 0;
-  MutterPluginPrivate  *priv     = plugin->priv;
-  MutterPluginClass    *klass    = MUTTER_PLUGIN_GET_CLASS (plugin);
-
-/*
- * Feature flags: identify events that the plugin can handle; a plugin can
- * handle one or more events.
- */
-  if (klass->minimize)
-    features |= MUTTER_PLUGIN_MINIMIZE;
-
-  if (klass->maximize)
-    features |= MUTTER_PLUGIN_MAXIMIZE;
-
-  if (klass->unmaximize)
-    features |= MUTTER_PLUGIN_UNMAXIMIZE;
-
-  if (klass->map)
-    features |= MUTTER_PLUGIN_MAP;
-
-  if (klass->destroy)
-    features |= MUTTER_PLUGIN_DESTROY;
-
-  if (klass->switch_workspace)
-    features |= MUTTER_PLUGIN_SWITCH_WORKSPACE;
-
-  if (priv->params)
-    {
-      gboolean debug = FALSE;
-
-      if ((p = strstr (priv->params, "disable:")))
-        {
-          gchar *d = g_strdup (p+8);
-
-          p = strchr (d, ';');
-
-          if (p)
-            *p = 0;
-
-          if (strstr (d, "minimize"))
-            features &= ~ MUTTER_PLUGIN_MINIMIZE;
-
-          if (strstr (d, "maximize"))
-            features &= ~ MUTTER_PLUGIN_MAXIMIZE;
-
-          if (strstr (d, "unmaximize"))
-            features &= ~ MUTTER_PLUGIN_UNMAXIMIZE;
-
-          if (strstr (d, "map"))
-            features &= ~ MUTTER_PLUGIN_MAP;
-
-          if (strstr (d, "destroy"))
-            features &= ~ MUTTER_PLUGIN_DESTROY;
-
-          if (strstr (d, "switch-workspace"))
-            features &= ~MUTTER_PLUGIN_SWITCH_WORKSPACE;
-
-          g_free (d);
-        }
-
-      if (strstr (priv->params, "debug"))
-        debug = TRUE;
-
-      if (debug != priv->debug)
-        {
-          priv->debug = debug;
-
-          g_object_notify (G_OBJECT (plugin), "debug-mode");
-        }
-    }
-
-  if (features != priv->features)
-    {
-      priv->features = features;
-
-      g_object_notify (G_OBJECT (plugin), "features");
-    }
-}
-
-static void
-mutter_plugin_set_property (GObject      *object,
-			    guint         prop_id,
-			    const GValue *value,
-			    GParamSpec   *pspec)
-{
-  MutterPluginPrivate *priv = MUTTER_PLUGIN (object)->priv;
-
-  switch (prop_id)
-    {
-    case PROP_SCREEN:
-      priv->screen = g_value_get_object (value);
-      break;
-    case PROP_PARAMS:
-      priv->params = g_value_dup_string (value);
-      mutter_plugin_parse_params (MUTTER_PLUGIN (object));
-      break;
-    case PROP_DISABLED:
-      priv->disabled = g_value_get_boolean (value);
-      break;
-    case PROP_DEBUG_MODE:
-      priv->debug = g_value_get_boolean (value);
-      break;
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-    }
-}
-
-static void
-mutter_plugin_get_property (GObject    *object,
-			    guint       prop_id,
-			    GValue     *value,
-			    GParamSpec *pspec)
-{
-  MutterPluginPrivate *priv = MUTTER_PLUGIN (object)->priv;
-
-  switch (prop_id)
-    {
-    case PROP_SCREEN:
-      g_value_set_object (value, priv->screen);
-      break;
-    case PROP_PARAMS:
-      g_value_set_string (value, priv->params);
-      break;
-    case PROP_DISABLED:
-      g_value_set_boolean (value, priv->disabled);
-      break;
-    case PROP_DEBUG_MODE:
-      g_value_set_boolean (value, priv->debug);
-      break;
-    case PROP_FEATURES:
-      g_value_set_ulong (value, priv->features);
-      break;
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-    }
-}
-
-
-static void
-mutter_plugin_class_init (MutterPluginClass *klass)
-{
-  GObjectClass      *gobject_class = G_OBJECT_CLASS (klass);
-
-  gobject_class->finalize        = mutter_plugin_finalize;
-  gobject_class->dispose         = mutter_plugin_dispose;
-  gobject_class->set_property    = mutter_plugin_set_property;
-  gobject_class->get_property    = mutter_plugin_get_property;
-
-  g_object_class_install_property (gobject_class,
-                                   PROP_SCREEN,
-                                   g_param_spec_object ("screen",
-                                                        "MetaScreen",
-                                                        "MetaScreen",
-                                                        META_TYPE_SCREEN,
-                                                        G_PARAM_READWRITE |
-                                                      G_PARAM_CONSTRUCT_ONLY));
-
-  g_object_class_install_property (gobject_class,
-				   PROP_PARAMS,
-				   g_param_spec_string ("params",
-							"Parameters",
-							"Plugin Parameters",
-							NULL,
-							G_PARAM_READWRITE |
-                                                        G_PARAM_CONSTRUCT));
-
-  g_object_class_install_property (gobject_class,
-				   PROP_FEATURES,
-				   g_param_spec_ulong ("features",
-                                                       "Features",
-                                                       "Plugin Features",
-                                                       0 , G_MAXULONG, 0,
-                                                       G_PARAM_READABLE));
-
-  g_object_class_install_property (gobject_class,
-				   PROP_DISABLED,
-				   g_param_spec_boolean ("disabled",
-                                                      "Plugin disabled",
-                                                      "Plugin disabled",
-                                                      FALSE,
-                                                      G_PARAM_READWRITE));
-
-  g_object_class_install_property (gobject_class,
-				   PROP_DEBUG_MODE,
-				   g_param_spec_boolean ("debug-mode",
-                                                      "Debug Mode",
-                                                      "Debug Mode",
-                                                      FALSE,
-                                                      G_PARAM_READABLE));
-
-  g_type_class_add_private (gobject_class, sizeof (MutterPluginPrivate));
-}
-
-static void
-mutter_plugin_init (MutterPlugin *self)
-{
-  MutterPluginPrivate *priv;
-
-  self->priv = priv = MUTTER_PLUGIN_GET_PRIVATE (self);
-}
-
-gulong
-mutter_plugin_features (MutterPlugin *plugin)
-{
-  MutterPluginPrivate *priv = MUTTER_PLUGIN (plugin)->priv;
-
-  return priv->features;
-}
-
-gboolean
-mutter_plugin_disabled (MutterPlugin *plugin)
-{
-  MutterPluginPrivate *priv = MUTTER_PLUGIN (plugin)->priv;
-
-  return priv->disabled;
-}
-
-gboolean
-mutter_plugin_running  (MutterPlugin *plugin)
-{
-  MutterPluginPrivate *priv = MUTTER_PLUGIN (plugin)->priv;
-
-  return (priv->running > 0);
-}
-
-gboolean
-mutter_plugin_debug_mode (MutterPlugin *plugin)
-{
-  MutterPluginPrivate *priv = MUTTER_PLUGIN (plugin)->priv;
-
-  return priv->debug;
-}
-
-const MutterPluginInfo *
-mutter_plugin_get_info (MutterPlugin *plugin)
-{
-  MutterPluginClass  *klass = MUTTER_PLUGIN_GET_CLASS (plugin);
-
-  if (klass && klass->plugin_info)
-    return klass->plugin_info (plugin);
-
-  return NULL;
-}
-
-ClutterActor *
-mutter_plugin_get_overlay_group (MutterPlugin *plugin)
-{
-  MutterPluginPrivate *priv = MUTTER_PLUGIN (plugin)->priv;
-
-  return mutter_get_overlay_group_for_screen (priv->screen);
-}
-
-ClutterActor *
-mutter_plugin_get_stage (MutterPlugin *plugin)
-{
-  MutterPluginPrivate *priv = MUTTER_PLUGIN (plugin)->priv;
-
-  return mutter_get_stage_for_screen (priv->screen);
-}
-
-ClutterActor *
-mutter_plugin_get_window_group (MutterPlugin *plugin)
-{
-  MutterPluginPrivate *priv = MUTTER_PLUGIN (plugin)->priv;
-
-  return mutter_get_window_group_for_screen (priv->screen);
-}
-
-/**
- * _mutter_plugin_effect_started:
- * @plugin: the plugin
- *
- * Mark that an effect has started for the plugin. This is called
- * internally by MutterPluginManager.
- */
-void
-_mutter_plugin_effect_started (MutterPlugin *plugin)
-{
-  MutterPluginPrivate *priv = MUTTER_PLUGIN (plugin)->priv;
-
-  priv->running++;
-}
-
-void
-mutter_plugin_effect_completed (MutterPlugin *plugin,
-                                MutterWindow *actor,
-                                unsigned long event)
-{
-  MutterPluginPrivate *priv = MUTTER_PLUGIN (plugin)->priv;
-
-  if (priv->running-- < 0)
-    {
-      g_warning ("Error in running effect accounting, adjusting.");
-      priv->running = 0;
-    }
-
-  if (!actor)
-    {
-      const MutterPluginInfo *info;
-      const gchar            *name = NULL;
-
-      if (plugin && (info = mutter_plugin_get_info (plugin)))
-        name = info->name;
-
-      g_warning ("Plugin [%s] passed NULL for actor!",
-                 name ? name : "unknown");
-    }
-
-  if (event == MUTTER_PLUGIN_SWITCH_WORKSPACE)
-    {
-      /* The window is just used to identify the screen */
-      MetaWindow *window = mutter_window_get_meta_window (actor);
-      MetaScreen *screen = meta_window_get_screen (window);
-      mutter_switch_workspace_completed (screen);
-    }
-    else
-    {
-      mutter_window_effect_completed (actor, event);
-    }
-}
-
-void
-mutter_plugin_query_screen_size (MutterPlugin *plugin,
-                                 int          *width,
-                                 int          *height)
-{
-  MutterPluginPrivate *priv = MUTTER_PLUGIN (plugin)->priv;
-
-  meta_screen_get_size (priv->screen, width, height);
-}
-
-void
-mutter_plugin_set_stage_reactive (MutterPlugin *plugin,
-                                  gboolean      reactive)
-{
-  MutterPluginPrivate *priv = MUTTER_PLUGIN (plugin)->priv;
-  MetaScreen  *screen  = priv->screen;
-
-  if (reactive)
-    mutter_set_stage_input_region (screen, None);
-  else
-    mutter_empty_stage_input_region (screen);
-}
-
-void
-mutter_plugin_set_stage_input_area (MutterPlugin *plugin,
-                                    gint x, gint y, gint width, gint height)
-{
-  MutterPluginPrivate *priv = MUTTER_PLUGIN (plugin)->priv;
-  MetaScreen   *screen  = priv->screen;
-  MetaDisplay  *display = meta_screen_get_display (screen);
-  Display      *xdpy    = meta_display_get_xdisplay (display);
-  XRectangle    rect;
-  XserverRegion region;
-
-  rect.x = x;
-  rect.y = y;
-  rect.width = width;
-  rect.height = height;
-
-  region = XFixesCreateRegion (xdpy, &rect, 1);
-  mutter_set_stage_input_region (screen, region);
-  XFixesDestroyRegion (xdpy, region);
-}
-
-void
-mutter_plugin_set_stage_input_region (MutterPlugin *plugin,
-                                      XserverRegion region)
-{
-  MutterPluginPrivate *priv = MUTTER_PLUGIN (plugin)->priv;
-  MetaScreen  *screen  = priv->screen;
-
-  mutter_set_stage_input_region (screen, region);
-}
-
-GList *
-mutter_plugin_get_windows (MutterPlugin *plugin)
-{
-  MutterPluginPrivate *priv = MUTTER_PLUGIN (plugin)->priv;
-
-  return mutter_get_windows (priv->screen);
-}
-
-Display *
-mutter_plugin_get_xdisplay (MutterPlugin *plugin)
-{
-  MutterPluginPrivate *priv    = MUTTER_PLUGIN (plugin)->priv;
-  MetaDisplay         *display = meta_screen_get_display (priv->screen);
-  Display             *xdpy    = meta_display_get_xdisplay (display);
-
-  return xdpy;
-}
-
-/**
- * mutter_plugin_get_screen:
- * @plugin: a #MutterPlugin
- *
- * Gets the #MetaScreen corresponding to a plugin. Each plugin instance
- * is associated with exactly one screen; if Metacity is managing
- * multiple screens, multiple plugin instances will be created.
- *
- * Return value: (transfer none): the #MetaScreen for the plugin
- */
-MetaScreen *
-mutter_plugin_get_screen (MutterPlugin *plugin)
-{
-  MutterPluginPrivate *priv = MUTTER_PLUGIN (plugin)->priv;
-
-  return priv->screen;
-}
-

src/compositor/mutter-shaped-texture.c

@@ -1,521 +0,0 @@
-/*
- * shaped texture
- *
- * An actor to draw a texture clipped to a list of rectangles
- *
- * Authored By Neil Roberts  <neil@linux.intel.com>
- *
- * Copyright (C) 2008 Intel Corporation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
- */
-
-#include <config.h>
-
-#include "mutter-shaped-texture.h"
-
-#include <clutter/clutter.h>
-#include <cogl/cogl.h>
-#include <string.h>
-
-
-static void mutter_shaped_texture_dispose (GObject *object);
-static void mutter_shaped_texture_finalize (GObject *object);
-
-static void mutter_shaped_texture_paint (ClutterActor *actor);
-static void mutter_shaped_texture_pick (ClutterActor *actor,
-					const ClutterColor *color);
-
-static void mutter_shaped_texture_dirty_mask (MutterShapedTexture *stex);
-
-#ifdef HAVE_GLX_TEXTURE_PIXMAP
-G_DEFINE_TYPE (MutterShapedTexture, mutter_shaped_texture,
-               CLUTTER_GLX_TYPE_TEXTURE_PIXMAP);
-#else /* HAVE_GLX_TEXTURE_PIXMAP */
-G_DEFINE_TYPE (MutterShapedTexture, mutter_shaped_texture,
-               CLUTTER_X11_TYPE_TEXTURE_PIXMAP);
-#endif /* HAVE_GLX_TEXTURE_PIXMAP */
-
-#define MUTTER_SHAPED_TEXTURE_GET_PRIVATE(obj) \
-  (G_TYPE_INSTANCE_GET_PRIVATE ((obj), MUTTER_TYPE_SHAPED_TEXTURE, \
-                                MutterShapedTexturePrivate))
-
-struct _MutterShapedTexturePrivate
-{
-  CoglHandle mask_texture;
-  CoglHandle material;
-  CoglHandle material_unshaped;
-#if 1 /* see workaround comment in mutter_shaped_texture_paint */
-  CoglHandle material_workaround;
-#endif
-
-  GdkRegion *clip_region;
-
-  guint mask_width, mask_height;
-
-  GArray *rectangles;
-};
-
-static void
-mutter_shaped_texture_class_init (MutterShapedTextureClass *klass)
-{
-  GObjectClass *gobject_class = (GObjectClass *) klass;
-  ClutterActorClass *actor_class = (ClutterActorClass *) klass;
-
-  gobject_class->dispose = mutter_shaped_texture_dispose;
-  gobject_class->finalize = mutter_shaped_texture_finalize;
-
-  actor_class->paint = mutter_shaped_texture_paint;
-  actor_class->pick = mutter_shaped_texture_pick;
-
-  g_type_class_add_private (klass, sizeof (MutterShapedTexturePrivate));
-}
-
-static void
-mutter_shaped_texture_init (MutterShapedTexture *self)
-{
-  MutterShapedTexturePrivate *priv;
-
-  priv = self->priv = MUTTER_SHAPED_TEXTURE_GET_PRIVATE (self);
-
-  priv->rectangles = g_array_new (FALSE, FALSE, sizeof (XRectangle));
-
-  priv->mask_texture = COGL_INVALID_HANDLE;
-}
-
-static void
-mutter_shaped_texture_dispose (GObject *object)
-{
-  MutterShapedTexture *self = (MutterShapedTexture *) object;
-  MutterShapedTexturePrivate *priv = self->priv;
-
-  mutter_shaped_texture_dirty_mask (self);
-
-  if (priv->material != COGL_INVALID_HANDLE)
-    {
-      cogl_material_unref (priv->material);
-      priv->material = COGL_INVALID_HANDLE;
-    }
-  if (priv->material_unshaped != COGL_INVALID_HANDLE)
-    {
-      cogl_material_unref (priv->material_unshaped);
-      priv->material_unshaped = COGL_INVALID_HANDLE;
-    }
-#if 1 /* see comment in mutter_shaped_texture_paint */
-  if (priv->material_workaround != COGL_INVALID_HANDLE)
-    {
-      cogl_material_unref (priv->material_workaround);
-      priv->material_workaround = COGL_INVALID_HANDLE;
-    }
-#endif
-
-  mutter_shaped_texture_set_clip_region (self, NULL);
-
-  G_OBJECT_CLASS (mutter_shaped_texture_parent_class)->dispose (object);
-}
-
-static void
-mutter_shaped_texture_finalize (GObject *object)
-{
-  MutterShapedTexture *self = (MutterShapedTexture *) object;
-  MutterShapedTexturePrivate *priv = self->priv;
-
-  g_array_free (priv->rectangles, TRUE);
-
-  G_OBJECT_CLASS (mutter_shaped_texture_parent_class)->finalize (object);
-}
-
-static void
-mutter_shaped_texture_dirty_mask (MutterShapedTexture *stex)
-{
-  MutterShapedTexturePrivate *priv = stex->priv;
-
-  if (priv->mask_texture != COGL_INVALID_HANDLE)
-    {
-      GLuint mask_gl_tex;
-      GLenum mask_gl_target;
-
-      cogl_texture_get_gl_texture (priv->mask_texture,
-                                   &mask_gl_tex, &mask_gl_target);
-
-      if (mask_gl_target == CGL_TEXTURE_RECTANGLE_ARB)
-        glDeleteTextures (1, &mask_gl_tex);
-
-      cogl_texture_unref (priv->mask_texture);
-      priv->mask_texture = COGL_INVALID_HANDLE;
-    }
-}
-
-static void
-mutter_shaped_texture_ensure_mask (MutterShapedTexture *stex)
-{
-  MutterShapedTexturePrivate *priv = stex->priv;
-  CoglHandle paint_tex;
-  guint tex_width, tex_height;
-
-  paint_tex = clutter_texture_get_cogl_texture (CLUTTER_TEXTURE (stex));
-
-  if (paint_tex == COGL_INVALID_HANDLE)
-    return;
-
-  tex_width = cogl_texture_get_width (paint_tex);
-  tex_height = cogl_texture_get_height (paint_tex);
-
-  /* If the mask texture we have was created for a different size then
-     recreate it */
-  if (priv->mask_texture != COGL_INVALID_HANDLE
-      && (priv->mask_width != tex_width || priv->mask_height != tex_height))
-    mutter_shaped_texture_dirty_mask (stex);
-
-  /* If we don't have a mask texture yet then create one */
-  if (priv->mask_texture == COGL_INVALID_HANDLE)
-    {
-      guchar *mask_data;
-      const XRectangle *rect;
-      GLenum paint_gl_target;
-
-      /* Create data for an empty image */
-      mask_data = g_malloc0 (tex_width * tex_height);
-
-      /* Cut out a hole for each rectangle */
-      for (rect = (XRectangle *) priv->rectangles->data
-             + priv->rectangles->len;
-           rect-- > (XRectangle *) priv->rectangles->data;)
-        {
-          gint x1 = rect->x, x2 = x1 + rect->width;
-          gint y1 = rect->y, y2 = y1 + rect->height;
-          guchar *p;
-
-          /* Clip the rectangle to the size of the texture */
-          x1 = CLAMP (x1, 0, (gint) tex_width - 1);
-          x2 = CLAMP (x2, x1, (gint) tex_width);
-          y1 = CLAMP (y1, 0, (gint) tex_height - 1);
-          y2 = CLAMP (y2, y1, (gint) tex_height);
-
-          /* Fill the rectangle */
-          for (p = mask_data + y1 * tex_width + x1;
-               y1 < y2;
-               y1++, p += tex_width)
-            memset (p, 255, x2 - x1);
-        }
-
-      cogl_texture_get_gl_texture (paint_tex, NULL, &paint_gl_target);
-
-      if (paint_gl_target == CGL_TEXTURE_RECTANGLE_ARB)
-        {
-          GLuint tex;
-
-          glGenTextures (1, &tex);
-          glBindTexture (CGL_TEXTURE_RECTANGLE_ARB, tex);
-          glPixelStorei (GL_UNPACK_ROW_LENGTH, tex_width);
-          glPixelStorei (GL_UNPACK_ALIGNMENT, 1);
-          glPixelStorei (GL_UNPACK_SKIP_ROWS, 0);
-          glPixelStorei (GL_UNPACK_SKIP_PIXELS, 0);
-          glTexImage2D (CGL_TEXTURE_RECTANGLE_ARB, 0,
-                        GL_ALPHA, tex_width, tex_height,
-                        0, GL_ALPHA, GL_UNSIGNED_BYTE, mask_data);
-
-          priv->mask_texture
-            = cogl_texture_new_from_foreign (tex,
-                                             CGL_TEXTURE_RECTANGLE_ARB,
-                                             tex_width, tex_height,
-                                             0, 0,
-                                             COGL_PIXEL_FORMAT_A_8);
-        }
-      else
-        priv->mask_texture = cogl_texture_new_from_data (tex_width, tex_height,
-                                                         COGL_TEXTURE_NONE,
-                                                         COGL_PIXEL_FORMAT_A_8,
-                                                         COGL_PIXEL_FORMAT_ANY,
-                                                         tex_width,
-                                                         mask_data);
-
-      g_free (mask_data);
-
-      priv->mask_width = tex_width;
-      priv->mask_height = tex_height;
-    }
-}
-
-static void
-mutter_shaped_texture_paint (ClutterActor *actor)
-{
-  MutterShapedTexture *stex = (MutterShapedTexture *) actor;
-  MutterShapedTexturePrivate *priv = stex->priv;
-  CoglHandle paint_tex;
-  guint tex_width, tex_height;
-  ClutterActorBox alloc;
-  CoglHandle material;
-#if 1 /* please see comment below about workaround */
-  guint depth;
-#endif
-
-  if (priv->clip_region && gdk_region_empty (priv->clip_region))
-    return;
-
-  if (!CLUTTER_ACTOR_IS_REALIZED (CLUTTER_ACTOR (stex)))
-    clutter_actor_realize (CLUTTER_ACTOR (stex));
-
-  paint_tex = clutter_texture_get_cogl_texture (CLUTTER_TEXTURE (stex));
-
-  tex_width = cogl_texture_get_width (paint_tex);
-  tex_height = cogl_texture_get_height (paint_tex);
-
-  if (tex_width == 0 || tex_height == 0) /* no contents yet */
-    return;
-
-  if (paint_tex == COGL_INVALID_HANDLE)
-    return;
-
-  if (priv->rectangles->len < 1)
-    {
-      /* If there are no rectangles use a single-layer texture */
-
-      if (priv->material_unshaped == COGL_INVALID_HANDLE)
-	priv->material_unshaped = cogl_material_new ();
-
-      material = priv->material_unshaped;
-    }
-  else
-    {
-      mutter_shaped_texture_ensure_mask (stex);
-
-      if (priv->material == COGL_INVALID_HANDLE)
-	{
-	  priv->material = cogl_material_new ();
-
-	  cogl_material_set_layer_combine (priv->material, 1,
-					   "RGBA = MODULATE (PREVIOUS, TEXTURE[A])",
-					   NULL);
-	}
-      material = priv->material;
-
-#if 1
-      /* This was added as a workaround. It seems that with the intel
-       * drivers when multi-texturing using an RGB TFP texture, the
-       * texture is actually setup internally as an RGBA texture, where
-       * the alpha channel is mostly 0.0 so you only see a shimmer of the
-       * window. This workaround forcibly defines the alpha channel as
-       * 1.0. Maybe there is some clutter/cogl state that is interacting
-       * with this that is being overlooked, but for now this seems to
-       * work. */
-      g_object_get (stex, "pixmap-depth", &depth, NULL);
-      if (depth == 24)
-	{
-	  if (priv->material_workaround == COGL_INVALID_HANDLE)
-	    {
-	      material = priv->material_workaround = cogl_material_new ();
-
-	      cogl_material_set_layer_combine (material, 0,
-					       "RGB = MODULATE (TEXTURE, PREVIOUS)"
-					       "A = REPLACE (PREVIOUS)",
-					       NULL);
-	      cogl_material_set_layer_combine (material, 1,
-					       "RGBA = MODULATE (PREVIOUS, TEXTURE[A])",
-					       NULL);
-	    }
-
-	  material = priv->material_workaround;
-	}
-#endif
-
-      cogl_material_set_layer (material, 1, priv->mask_texture);
-    }
-
-  cogl_material_set_layer (material, 0, paint_tex);
-
-  {
-    CoglColor color;
-    guchar opacity = clutter_actor_get_paint_opacity (actor);
-    cogl_color_set_from_4ub (&color, opacity, opacity, opacity, opacity);
-    cogl_material_set_color (material, &color);
-  }
-
-  cogl_set_source (material);
-
-  clutter_actor_get_allocation_box (actor, &alloc);
-
-  if (priv->clip_region)
-    {
-      GdkRectangle *rects;
-      int n_rects;
-      int i;
-
-      /* Limit to how many separate rectangles we'll draw; beyond this just
-       * fall back and draw the whole thing */
-#     define MAX_RECTS 16
-
-      /* Would be nice to be able to check the number of rects first */
-      gdk_region_get_rectangles (priv->clip_region, &rects, &n_rects);
-      if (n_rects > MAX_RECTS)
-	{
-	  g_free (rects);
-	  /* Fall through to following code */
-	}
-      else
-	{
-	  float coords[MAX_RECTS * 8];
-	  for (i = 0; i < n_rects; i++)
-	    {
-	      GdkRectangle *rect = &rects[i];
-
-	      coords[i * 8 + 0] = rect->x;
-	      coords[i * 8 + 1] = rect->y;
-	      coords[i * 8 + 2] = rect->x + rect->width;
-	      coords[i * 8 + 3] = rect->y + rect->height;
-	      coords[i * 8 + 4] = rect->x / (alloc.x2 - alloc.x1);
-	      coords[i * 8 + 5] = rect->y / (alloc.y2 - alloc.y1);
-	      coords[i * 8 + 6] = (rect->x + rect->width) / (alloc.x2 - alloc.x1);
-	      coords[i * 8 + 7] = (rect->y + rect->height) / (alloc.y2 - alloc.y1);
-	    }
-
-	  g_free (rects);
-
-	  cogl_rectangles_with_texture_coords (coords, n_rects);
-	  return;
-	}
-    }
-
-  cogl_rectangle (0, 0,
-		  alloc.x2 - alloc.x1,
-		  alloc.y2 - alloc.y1);
-}
-
-static void
-mutter_shaped_texture_pick (ClutterActor *actor,
-			    const ClutterColor *color)
-{
-  MutterShapedTexture *stex = (MutterShapedTexture *) actor;
-  MutterShapedTexturePrivate *priv = stex->priv;
-
-  /* If there are no rectangles then use the regular pick */
-  if (priv->rectangles->len < 1)
-    CLUTTER_ACTOR_CLASS (mutter_shaped_texture_parent_class)
-      ->pick (actor, color);
-  else if (clutter_actor_should_pick_paint (actor))
-    {
-      CoglHandle paint_tex;
-      ClutterActorBox alloc;
-      guint tex_width, tex_height;
-
-      paint_tex = clutter_texture_get_cogl_texture (CLUTTER_TEXTURE (stex));
-
-      if (paint_tex == COGL_INVALID_HANDLE)
-        return;
-
-      tex_width = cogl_texture_get_width (paint_tex);
-      tex_height = cogl_texture_get_height (paint_tex);
-
-      if (tex_width == 0 || tex_height == 0) /* no contents yet */
-        return;
-
-      mutter_shaped_texture_ensure_mask (stex);
-
-      cogl_set_source_color4ub (color->red, color->green, color->blue,
-                                 color->alpha);
-
-      clutter_actor_get_allocation_box (actor, &alloc);
-
-      /* Paint the mask rectangle in the given color */
-      cogl_set_source_texture (priv->mask_texture);
-      cogl_rectangle_with_texture_coords (0, 0,
-                                          alloc.x2 - alloc.x1,
-                                          alloc.y2 - alloc.y1,
-                                          0, 0, 1, 1);
-    }
-}
-
-ClutterActor *
-mutter_shaped_texture_new (void)
-{
-  ClutterActor *self = g_object_new (MUTTER_TYPE_SHAPED_TEXTURE, NULL);
-
-  return self;
-}
-
-void
-mutter_shaped_texture_clear_rectangles (MutterShapedTexture *stex)
-{
-  MutterShapedTexturePrivate *priv;
-
-  g_return_if_fail (MUTTER_IS_SHAPED_TEXTURE (stex));
-
-  priv = stex->priv;
-
-  g_array_set_size (priv->rectangles, 0);
-  mutter_shaped_texture_dirty_mask (stex);
-  clutter_actor_queue_redraw (CLUTTER_ACTOR (stex));
-}
-
-void
-mutter_shaped_texture_add_rectangle (MutterShapedTexture *stex,
-				     const XRectangle *rect)
-{
-  g_return_if_fail (MUTTER_IS_SHAPED_TEXTURE (stex));
-
-  mutter_shaped_texture_add_rectangles (stex, 1, rect);
-}
-
-void
-mutter_shaped_texture_add_rectangles (MutterShapedTexture *stex,
-				      size_t num_rects,
-				      const XRectangle *rects)
-{
-  MutterShapedTexturePrivate *priv;
-
-  g_return_if_fail (MUTTER_IS_SHAPED_TEXTURE (stex));
-
-  priv = stex->priv;
-
-  g_array_append_vals (priv->rectangles, rects, num_rects);
-
-  mutter_shaped_texture_dirty_mask (stex);
-  clutter_actor_queue_redraw (CLUTTER_ACTOR (stex));
-}
-
-/**
- * mutter_shaped_texture_set_clip_region:
- * @frame: a #TidyTextureframe
- * @clip_region: (transfer full): the region of the texture that
- *   is visible and should be painted. OWNERSHIP IS ASSUMED BY
- *   THE FUNCTION (for efficiency to avoid a copy.)
- *
- * Provides a hint to the texture about what areas of the texture
- * are not completely obscured and thus need to be painted. This
- * is an optimization and is not supposed to have any effect on
- * the output.
- *
- * Typically a parent container will set the clip region before
- * painting its children, and then unset it afterwards.
- */
-void
-mutter_shaped_texture_set_clip_region (MutterShapedTexture *stex,
-				       GdkRegion           *clip_region)
-{
-  MutterShapedTexturePrivate *priv;
-
-  g_return_if_fail (MUTTER_IS_SHAPED_TEXTURE (stex));
-
-  priv = stex->priv;
-
-  if (priv->clip_region)
-    {
-      gdk_region_destroy (priv->clip_region);
-      priv->clip_region = NULL;
-    }
-
-  priv->clip_region = clip_region;
-}

src/compositor/mutter-shaped-texture.h

@@ -1,101 +0,0 @@
-/*
- * shaped texture
- *
- * An actor to draw a texture clipped to a list of rectangles
- *
- * Authored By Neil Roberts  <neil@linux.intel.com>
- *
- * Copyright (C) 2008 Intel Corporation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
- */
-
-#ifndef __MUTTER_SHAPED_TEXTURE_H__
-#define __MUTTER_SHAPED_TEXTURE_H__
-
-#include <clutter/clutter.h>
-#ifdef HAVE_GLX_TEXTURE_PIXMAP
-#include <clutter/glx/clutter-glx.h>
-#endif /* HAVE_GLX_TEXTURE_PIXMAP */
-
-#include <gdk/gdkregion.h>
-
-G_BEGIN_DECLS
-
-#define MUTTER_TYPE_SHAPED_TEXTURE			    \
-  (mutter_shaped_texture_get_type())
-#define MUTTER_SHAPED_TEXTURE(obj)                          \
-  (G_TYPE_CHECK_INSTANCE_CAST ((obj),                       \
-                               MUTTER_TYPE_SHAPED_TEXTURE,  \
-                               MutterShapedTexture))
-#define MUTTER_SHAPED_TEXTURE_CLASS(klass)                  \
-  (G_TYPE_CHECK_CLASS_CAST ((klass),			    \
-                            MUTTER_TYPE_SHAPED_TEXTURE,	    \
-                            MutterShapedTextureClass))
-#define MUTTER_IS_SHAPED_TEXTURE(obj)                       \
-  (G_TYPE_CHECK_INSTANCE_TYPE ((obj),			    \
-                               MUTTER_TYPE_SHAPED_TEXTURE))
-#define MUTTER_IS_SHAPED_TEXTURE_CLASS(klass)		    \
-  (G_TYPE_CHECK_CLASS_TYPE ((klass),			    \
-                            MUTTER_TYPE_SHAPED_TEXTURE))
-#define MUTTER_SHAPED_TEXTURE_GET_CLASS(obj)                \
-  (G_TYPE_INSTANCE_GET_CLASS ((obj),                        \
-                              MUTTER_TYPE_SHAPED_TEXTURE,   \
-                              MutterShapedTextureClass))
-
-typedef struct _MutterShapedTexture        MutterShapedTexture;
-typedef struct _MutterShapedTextureClass   MutterShapedTextureClass;
-typedef struct _MutterShapedTexturePrivate MutterShapedTexturePrivate;
-
-struct _MutterShapedTextureClass
-{
-#ifdef HAVE_GLX_TEXTURE_PIXMAP
-  ClutterGLXTexturePixmapClass parent_class;
-#else
-  ClutterX11TexturePixmapClass parent_class;
-#endif
-};
-
-struct _MutterShapedTexture
-{
-#ifdef HAVE_GLX_TEXTURE_PIXMAP
-  ClutterGLXTexturePixmap parent;
-#else
-  ClutterX11TexturePixmap parent;
-#endif
-
-  MutterShapedTexturePrivate *priv;
-};
-
-GType mutter_shaped_texture_get_type (void) G_GNUC_CONST;
-
-ClutterActor *mutter_shaped_texture_new (void);
-
-void mutter_shaped_texture_clear_rectangles (MutterShapedTexture *stex);
-
-void mutter_shaped_texture_add_rectangle (MutterShapedTexture *stex,
-					  const XRectangle *rect);
-void mutter_shaped_texture_add_rectangles (MutterShapedTexture *stex,
-					   size_t num_rects,
-					   const XRectangle *rects);
-
-/* Assumes ownership of clip_region */
-void mutter_shaped_texture_set_clip_region (MutterShapedTexture *stex,
-					    GdkRegion           *clip_region);
-
-G_END_DECLS
-
-#endif /* __MUTTER_SHAPED_TEXTURE_H__ */

src/compositor/mutter-window-private.h

@@ -1,51 +0,0 @@
-/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
-
-#ifndef MUTTER_WINDOW_PRIVATE_H
-#define MUTTER_WINDOW_PRIVATE_H
-
-#include <X11/extensions/Xdamage.h>
-#include <gdk/gdk.h>
-#include "compositor-mutter.h"
-
-MutterWindow *mutter_window_new (MetaWindow *window);
-
-void mutter_window_destroy   (MutterWindow *cw);
-
-void mutter_window_show (MutterWindow   *cw,
-                         MetaCompEffect  effect);
-void mutter_window_hide (MutterWindow   *cw,
-                         MetaCompEffect  effect);
-
-void mutter_window_maximize   (MutterWindow  *cw,
-                               MetaRectangle *old_rect,
-                               MetaRectangle *new_rect);
-void mutter_window_unmaximize (MutterWindow  *cw,
-                               MetaRectangle *old_rect,
-                               MetaRectangle *new_rect);
-
-void     mutter_window_process_damage          (MutterWindow       *cw,
-                                                XDamageNotifyEvent *event);
-void     mutter_window_pre_paint               (MutterWindow       *self);
-
-gboolean mutter_window_effect_in_progress      (MutterWindow       *cw);
-void     mutter_window_sync_actor_position     (MutterWindow       *cw);
-void     mutter_window_sync_visibility         (MutterWindow       *cw);
-void     mutter_window_update_window_type      (MutterWindow       *cw);
-void     mutter_window_update_shape            (MutterWindow       *cw,
-                                                gboolean            shaped);
-void     mutter_window_update_opacity          (MutterWindow       *cw);
-void     mutter_window_mapped                  (MutterWindow       *cw);
-void     mutter_window_unmapped                (MutterWindow       *cw);
-
-GdkRegion *mutter_window_get_obscured_region   (MutterWindow       *cw);
-
-void mutter_window_set_visible_region          (MutterWindow       *cw,
-                                                GdkRegion          *visible_region);
-void mutter_window_set_visible_region_beneath  (MutterWindow       *cw,
-                                                GdkRegion          *beneath_region);
-void mutter_window_reset_visible_regions       (MutterWindow       *cw);
-
-void mutter_window_effect_completed (MutterWindow *actor,
-                                     gulong        event);
-
-#endif /* MUTTER_WINDOW_PRIVATE_H */

src/compositor/plugins/default.c

@@ -21,7 +21,8 @@
  * 02111-1307, USA.
  */
 
-#include "mutter-plugin.h"
+#include "meta-plugin.h"
+#include "window.h"
 
 #include <libintl.h>
 #define _(x) dgettext (GETTEXT_PACKAGE, x)
@@ -39,71 +40,78 @@
 
 #define ACTOR_DATA_KEY "MCCP-Default-actor-data"
 
-#define MUTTER_TYPE_DEFAULT_PLUGIN            (mutter_default_plugin_get_type ())
-#define MUTTER_DEFAULT_PLUGIN(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), MUTTER_TYPE_DEFAULT_PLUGIN, MutterDefaultPlugin))
-#define MUTTER_DEFAULT_PLUGIN_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  MUTTER_TYPE_DEFAULT_PLUGIN, MutterDefaultPluginClass))
-#define MUTTER_IS_DEFAULT_PLUGIN(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), MUTTER_DEFAULT_PLUGIN_TYPE))
-#define MUTTER_IS_DEFAULT_PLUGIN_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  MUTTER_TYPE_DEFAULT_PLUGIN))
-#define MUTTER_DEFAULT_PLUGIN_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  MUTTER_TYPE_DEFAULT_PLUGIN, MutterDefaultPluginClass))
+#define META_TYPE_DEFAULT_PLUGIN            (meta_default_plugin_get_type ())
+#define META_DEFAULT_PLUGIN(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_DEFAULT_PLUGIN, MetaDefaultPlugin))
+#define META_DEFAULT_PLUGIN_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  META_TYPE_DEFAULT_PLUGIN, MetaDefaultPluginClass))
+#define META_IS_DEFAULT_PLUGIN(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_DEFAULT_PLUGIN_TYPE))
+#define META_IS_DEFAULT_PLUGIN_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  META_TYPE_DEFAULT_PLUGIN))
+#define META_DEFAULT_PLUGIN_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  META_TYPE_DEFAULT_PLUGIN, MetaDefaultPluginClass))
 
-#define MUTTER_DEFAULT_PLUGIN_GET_PRIVATE(obj) \
-(G_TYPE_INSTANCE_GET_PRIVATE ((obj), MUTTER_TYPE_DEFAULT_PLUGIN, MutterDefaultPluginPrivate))
+#define META_DEFAULT_PLUGIN_GET_PRIVATE(obj) \
+(G_TYPE_INSTANCE_GET_PRIVATE ((obj), META_TYPE_DEFAULT_PLUGIN, MetaDefaultPluginPrivate))
 
-typedef struct _MutterDefaultPlugin        MutterDefaultPlugin;
-typedef struct _MutterDefaultPluginClass   MutterDefaultPluginClass;
-typedef struct _MutterDefaultPluginPrivate MutterDefaultPluginPrivate;
+typedef struct _MetaDefaultPlugin        MetaDefaultPlugin;
+typedef struct _MetaDefaultPluginClass   MetaDefaultPluginClass;
+typedef struct _MetaDefaultPluginPrivate MetaDefaultPluginPrivate;
 
-struct _MutterDefaultPlugin
+struct _MetaDefaultPlugin
 {
-  MutterPlugin parent;
+  MetaPlugin parent;
 
-  MutterDefaultPluginPrivate *priv;
+  MetaDefaultPluginPrivate *priv;
 };
 
-struct _MutterDefaultPluginClass
+struct _MetaDefaultPluginClass
 {
-  MutterPluginClass parent_class;
+  MetaPluginClass parent_class;
 };
 
 static GQuark actor_data_quark = 0;
 
-static void     minimize   (MutterPlugin *plugin,
-                            MutterWindow *actor);
-static void     map        (MutterPlugin *plugin,
-                            MutterWindow *actor);
-static void     destroy    (MutterPlugin *plugin,
-                            MutterWindow *actor);
-static void     maximize   (MutterPlugin *plugin,
-                            MutterWindow *actor,
-                            gint x, gint y, gint width, gint height);
-static void     unmaximize (MutterPlugin *plugin,
-                            MutterWindow *actor,
-                            gint x, gint y, gint width, gint height);
+static void minimize   (MetaPlugin      *plugin,
+                        MetaWindowActor *actor);
+static void map        (MetaPlugin      *plugin,
+                        MetaWindowActor *actor);
+static void destroy    (MetaPlugin      *plugin,
+                        MetaWindowActor *actor);
+static void maximize   (MetaPlugin      *plugin,
+                        MetaWindowActor *actor,
+                        gint             x,
+                        gint             y,
+                        gint             width,
+                        gint             height);
+static void unmaximize (MetaPlugin      *plugin,
+                        MetaWindowActor *actor,
+                        gint             x,
+                        gint             y,
+                        gint             width,
+                        gint             height);
 
-static void switch_workspace (MutterPlugin *plugin,
-                              const GList **actors, gint from, gint to,
-                              MetaMotionDirection direction);
+static void switch_workspace (MetaPlugin          *plugin,
+                              gint                 from,
+                              gint                 to,
+                              MetaMotionDirection  direction);
 
-static void kill_effect (MutterPlugin *plugin,
-                         MutterWindow *actor, gulong event);
+static void kill_window_effects   (MetaPlugin      *plugin,
+                                   MetaWindowActor *actor);
+static void kill_switch_workspace (MetaPlugin      *plugin);
 
-static const MutterPluginInfo * plugin_info (MutterPlugin *plugin);
+static const MetaPluginInfo * plugin_info (MetaPlugin *plugin);
 
-MUTTER_PLUGIN_DECLARE(MutterDefaultPlugin, mutter_default_plugin);
+META_PLUGIN_DECLARE(MetaDefaultPlugin, meta_default_plugin);
 
 /*
  * Plugin private data that we store in the .plugin_private member.
  */
-struct _MutterDefaultPluginPrivate
+struct _MetaDefaultPluginPrivate
 {
   /* Valid only when switch_workspace effect is in progress */
   ClutterTimeline       *tml_switch_workspace1;
   ClutterTimeline       *tml_switch_workspace2;
-  GList                **actors;
   ClutterActor          *desktop1;
   ClutterActor          *desktop2;
 
-  MutterPluginInfo       info;
+  MetaPluginInfo         info;
 
   gboolean               debug_mode : 1;
 };
@@ -128,26 +136,26 @@ typedef struct _ActorPrivate
 typedef struct
 {
   ClutterActor *actor;
-  MutterPlugin *plugin;
+  MetaPlugin *plugin;
 } EffectCompleteData;
 
 
 static void
-mutter_default_plugin_dispose (GObject *object)
+meta_default_plugin_dispose (GObject *object)
 {
-  /* MutterDefaultPluginPrivate *priv = MUTTER_DEFAULT_PLUGIN (object)->priv;
+  /* MetaDefaultPluginPrivate *priv = META_DEFAULT_PLUGIN (object)->priv;
   */
-  G_OBJECT_CLASS (mutter_default_plugin_parent_class)->dispose (object);
+  G_OBJECT_CLASS (meta_default_plugin_parent_class)->dispose (object);
 }
 
 static void
-mutter_default_plugin_finalize (GObject *object)
+meta_default_plugin_finalize (GObject *object)
 {
-  G_OBJECT_CLASS (mutter_default_plugin_parent_class)->finalize (object);
+  G_OBJECT_CLASS (meta_default_plugin_parent_class)->finalize (object);
 }
 
 static void
-mutter_default_plugin_set_property (GObject      *object,
+meta_default_plugin_set_property (GObject      *object,
 			    guint         prop_id,
 			    const GValue *value,
 			    GParamSpec   *pspec)
@@ -161,7 +169,7 @@ mutter_default_plugin_set_property (GObject      *object,
 }
 
 static void
-mutter_default_plugin_get_property (GObject    *object,
+meta_default_plugin_get_property (GObject    *object,
 			    guint       prop_id,
 			    GValue     *value,
 			    GParamSpec *pspec)
@@ -175,10 +183,9 @@ mutter_default_plugin_get_property (GObject    *object,
 }
 
 static void
-mutter_default_plugin_constructed (GObject *object)
+start (MetaPlugin *plugin)
 {
-  MutterPlugin               *plugin = MUTTER_PLUGIN (object);
-  MutterDefaultPluginPrivate *priv   = MUTTER_DEFAULT_PLUGIN (object)->priv;
+  MetaDefaultPluginPrivate *priv   = META_DEFAULT_PLUGIN (plugin)->priv;
 
   guint destroy_timeout  = DESTROY_TIMEOUT;
   guint minimize_timeout = MINIMIZE_TIMEOUT;
@@ -186,7 +193,7 @@ mutter_default_plugin_constructed (GObject *object)
   guint map_timeout      = MAP_TIMEOUT;
   guint switch_timeout   = SWITCH_TIMEOUT;
 
-  if (mutter_plugin_debug_mode (plugin))
+  if (meta_plugin_debug_mode (plugin))
     {
       g_debug ("Plugin %s: Entering debug mode.", priv->info.name);
 
@@ -201,39 +208,39 @@ mutter_default_plugin_constructed (GObject *object)
       map_timeout      *= 2;
       switch_timeout   *= 2;
     }
-
 }
 
 static void
-mutter_default_plugin_class_init (MutterDefaultPluginClass *klass)
+meta_default_plugin_class_init (MetaDefaultPluginClass *klass)
 {
   GObjectClass      *gobject_class = G_OBJECT_CLASS (klass);
-  MutterPluginClass *plugin_class  = MUTTER_PLUGIN_CLASS (klass);
+  MetaPluginClass *plugin_class  = META_PLUGIN_CLASS (klass);
 
-  gobject_class->finalize        = mutter_default_plugin_finalize;
-  gobject_class->dispose         = mutter_default_plugin_dispose;
-  gobject_class->constructed     = mutter_default_plugin_constructed;
-  gobject_class->set_property    = mutter_default_plugin_set_property;
-  gobject_class->get_property    = mutter_default_plugin_get_property;
+  gobject_class->finalize        = meta_default_plugin_finalize;
+  gobject_class->dispose         = meta_default_plugin_dispose;
+  gobject_class->set_property    = meta_default_plugin_set_property;
+  gobject_class->get_property    = meta_default_plugin_get_property;
 
+  plugin_class->start            = start;
   plugin_class->map              = map;
   plugin_class->minimize         = minimize;
   plugin_class->maximize         = maximize;
   plugin_class->unmaximize       = unmaximize;
   plugin_class->destroy          = destroy;
   plugin_class->switch_workspace = switch_workspace;
-  plugin_class->kill_effect      = kill_effect;
   plugin_class->plugin_info      = plugin_info;
+  plugin_class->kill_window_effects   = kill_window_effects;
+  plugin_class->kill_switch_workspace = kill_switch_workspace;
 
-  g_type_class_add_private (gobject_class, sizeof (MutterDefaultPluginPrivate));
+  g_type_class_add_private (gobject_class, sizeof (MetaDefaultPluginPrivate));
 }
 
 static void
-mutter_default_plugin_init (MutterDefaultPlugin *self)
+meta_default_plugin_init (MetaDefaultPlugin *self)
 {
-  MutterDefaultPluginPrivate *priv;
+  MetaDefaultPluginPrivate *priv;
 
-  self->priv = priv = MUTTER_DEFAULT_PLUGIN_GET_PRIVATE (self);
+  self->priv = priv = META_DEFAULT_PLUGIN_GET_PRIVATE (self);
 
   priv->info.name        = "Default Effects";
   priv->info.version     = "0.1";
@@ -253,7 +260,7 @@ free_actor_private (gpointer data)
 }
 
 static ActorPrivate *
-get_actor_private (MutterWindow *actor)
+get_actor_private (MetaWindowActor *actor)
 {
   ActorPrivate *priv = g_object_get_qdata (G_OBJECT (actor), actor_data_quark);
 
@@ -272,26 +279,18 @@ get_actor_private (MutterWindow *actor)
   return priv;
 }
 
-typedef struct SwitchWorkspaceData
-{
-  MutterPlugin  *plugin;
-  const GList  **actors;
-} SwitchWorkspaceData;
-
 static void
 on_switch_workspace_effect_complete (ClutterTimeline *timeline, gpointer data)
 {
-  SwitchWorkspaceData        *sw_data = data;
-  MutterPlugin               *plugin  = sw_data->plugin;
-  MutterDefaultPluginPrivate *priv = MUTTER_DEFAULT_PLUGIN (plugin)->priv;
-  GList        *l     = *((GList**)sw_data->actors);
-  MutterWindow *actor_for_cb = l->data;
+  MetaPlugin               *plugin  = META_PLUGIN (data);
+  MetaDefaultPluginPrivate *priv = META_DEFAULT_PLUGIN (plugin)->priv;
+  GList        *l     = meta_plugin_get_window_actors (plugin);
 
   while (l)
     {
       ClutterActor *a = l->data;
-      MutterWindow *mc_window = MUTTER_WINDOW (a);
-      ActorPrivate *apriv = get_actor_private (mc_window);
+      MetaWindowActor *window_actor = META_WINDOW_ACTOR (a);
+      ActorPrivate *apriv = get_actor_private (window_actor);
 
       if (apriv->orig_parent)
         {
@@ -305,40 +304,32 @@ on_switch_workspace_effect_complete (ClutterTimeline *timeline, gpointer data)
   clutter_actor_destroy (priv->desktop1);
   clutter_actor_destroy (priv->desktop2);
 
-  priv->actors = NULL;
   priv->tml_switch_workspace1 = NULL;
   priv->tml_switch_workspace2 = NULL;
   priv->desktop1 = NULL;
   priv->desktop2 = NULL;
 
-  g_free (data);
-
-  mutter_plugin_effect_completed (plugin, actor_for_cb,
-                                  MUTTER_PLUGIN_SWITCH_WORKSPACE);
+  meta_plugin_switch_workspace_completed (plugin);
 }
 
 static void
-switch_workspace (MutterPlugin *plugin,
-                  const GList **actors, gint from, gint to,
+switch_workspace (MetaPlugin *plugin,
+                  gint from, gint to,
                   MetaMotionDirection direction)
 {
-  MutterDefaultPluginPrivate *priv = MUTTER_DEFAULT_PLUGIN (plugin)->priv;
+  MetaDefaultPluginPrivate *priv = META_DEFAULT_PLUGIN (plugin)->priv;
   GList        *l;
   gint          n_workspaces;
   ClutterActor *workspace0  = clutter_group_new ();
   ClutterActor *workspace1  = clutter_group_new ();
   ClutterActor *stage;
   int           screen_width, screen_height;
-  MetaScreen   *screen = mutter_plugin_get_screen (plugin);
-  SwitchWorkspaceData *sw_data = g_new (SwitchWorkspaceData, 1);
+  MetaScreen   *screen = meta_plugin_get_screen (plugin);
   ClutterAnimation *animation;
 
-  sw_data->plugin = plugin;
-  sw_data->actors = actors;
+  stage = meta_plugin_get_stage (plugin);
 
-  stage = mutter_plugin_get_stage (plugin);
-
-  mutter_plugin_query_screen_size (plugin,
+  meta_plugin_query_screen_size (plugin,
 					      &screen_width,
 					      &screen_height);
   clutter_actor_set_anchor_point (workspace1,
@@ -355,32 +346,31 @@ switch_workspace (MutterPlugin *plugin,
 
   if (from == to)
     {
-      mutter_plugin_effect_completed (plugin, NULL,
-                           MUTTER_PLUGIN_SWITCH_WORKSPACE);
+      meta_plugin_switch_workspace_completed (plugin);
       return;
     }
 
   n_workspaces = meta_screen_get_n_workspaces (screen);
 
-  l = g_list_last (*((GList**) actors));
+  l = g_list_last (meta_plugin_get_window_actors (plugin));
 
   while (l)
     {
-      MutterWindow *mc_window	= l->data;
-      ActorPrivate *apriv	= get_actor_private (mc_window);
-      ClutterActor *window	= CLUTTER_ACTOR (mc_window);
-      gint          win_workspace;
+      MetaWindowActor *window_actor = l->data;
+      ActorPrivate    *apriv	    = get_actor_private (window_actor);
+      ClutterActor    *actor	    = CLUTTER_ACTOR (window_actor);
+      gint             win_workspace;
 
-      win_workspace = mutter_window_get_workspace (mc_window);
+      win_workspace = meta_window_actor_get_workspace (window_actor);
 
       if (win_workspace == to || win_workspace == from)
         {
-          apriv->orig_parent = clutter_actor_get_parent (window);
+          apriv->orig_parent = clutter_actor_get_parent (actor);
 
-          clutter_actor_reparent (window,
+          clutter_actor_reparent (actor,
 				  win_workspace == to ? workspace1 : workspace0);
-          clutter_actor_show_all (window);
-          clutter_actor_raise_top (window);
+          clutter_actor_show_all (actor);
+          clutter_actor_raise_top (actor);
         }
       else if (win_workspace < 0)
         {
@@ -390,14 +380,13 @@ switch_workspace (MutterPlugin *plugin,
       else
         {
           /* Window on some other desktop */
-          clutter_actor_hide (window);
+          clutter_actor_hide (actor);
           apriv->orig_parent = NULL;
         }
 
       l = l->prev;
     }
 
-  priv->actors   = (GList **)actors;
   priv->desktop1 = workspace0;
   priv->desktop2 = workspace1;
 
@@ -410,7 +399,7 @@ switch_workspace (MutterPlugin *plugin,
   g_signal_connect (priv->tml_switch_workspace1,
                     "completed",
                     G_CALLBACK (on_switch_workspace_effect_complete),
-                    sw_data);
+                    plugin);
 
   animation = clutter_actor_animate (workspace1, CLUTTER_EASE_IN_SINE,
                                      SWITCH_TIMEOUT,
@@ -432,11 +421,11 @@ on_minimize_effect_complete (ClutterTimeline *timeline, EffectCompleteData *data
    * Must reverse the effect of the effect; must hide it first to ensure
    * that the restoration will not be visible.
    */
-  MutterPlugin *plugin = data->plugin;
+  MetaPlugin *plugin = data->plugin;
   ActorPrivate *apriv;
-  MutterWindow *mc_window = MUTTER_WINDOW (data->actor);
+  MetaWindowActor *window_actor = META_WINDOW_ACTOR (data->actor);
 
-  apriv = get_actor_private (MUTTER_WINDOW (data->actor));
+  apriv = get_actor_private (META_WINDOW_ACTOR (data->actor));
   apriv->tml_minimize = NULL;
 
   clutter_actor_hide (data->actor);
@@ -448,8 +437,7 @@ on_minimize_effect_complete (ClutterTimeline *timeline, EffectCompleteData *data
                                                 CLUTTER_GRAVITY_NORTH_WEST);
 
   /* Now notify the manager that we are done with this effect */
-  mutter_plugin_effect_completed (plugin, mc_window,
-                                  MUTTER_PLUGIN_MINIMIZE);
+  meta_plugin_minimize_completed (plugin, window_actor);
 
   g_free (data);
 }
@@ -459,18 +447,20 @@ on_minimize_effect_complete (ClutterTimeline *timeline, EffectCompleteData *data
  * completion).
  */
 static void
-minimize (MutterPlugin *plugin, MutterWindow *mc_window)
+minimize (MetaPlugin *plugin, MetaWindowActor *window_actor)
 {
-  MetaCompWindowType          type;
-  ClutterActor               *actor  = CLUTTER_ACTOR (mc_window);
+  MetaWindowType type;
+  MetaWindow *meta_window = meta_window_actor_get_meta_window (window_actor);
+  ClutterActor *actor  = CLUTTER_ACTOR (window_actor);
 
-  type = mutter_window_get_window_type (mc_window);
 
-  if (type == META_COMP_WINDOW_NORMAL)
+  type = meta_window_get_window_type (meta_window);
+
+  if (type == META_WINDOW_NORMAL)
     {
       ClutterAnimation *animation;
       EffectCompleteData *data = g_new0 (EffectCompleteData, 1);
-      ActorPrivate *apriv = get_actor_private (mc_window);
+      ActorPrivate *apriv = get_actor_private (window_actor);
 
       apriv->is_minimized = TRUE;
 
@@ -492,8 +482,7 @@ minimize (MutterPlugin *plugin, MutterWindow *mc_window)
 
     }
   else
-    mutter_plugin_effect_completed (plugin, mc_window,
-                                    MUTTER_PLUGIN_MINIMIZE);
+    meta_plugin_minimize_completed (plugin, window_actor);
 }
 
 /*
@@ -506,9 +495,9 @@ on_maximize_effect_complete (ClutterTimeline *timeline, EffectCompleteData *data
   /*
    * Must reverse the effect of the effect.
    */
-  MutterPlugin * plugin = data->plugin;
-  MutterWindow  *mc_window = MUTTER_WINDOW (data->actor);
-  ActorPrivate  *apriv     = get_actor_private (mc_window);
+  MetaPlugin *plugin = data->plugin;
+  MetaWindowActor *window_actor = META_WINDOW_ACTOR (data->actor);
+  ActorPrivate *apriv = get_actor_private (window_actor);
 
   apriv->tml_maximize = NULL;
 
@@ -518,8 +507,7 @@ on_maximize_effect_complete (ClutterTimeline *timeline, EffectCompleteData *data
                                                 CLUTTER_GRAVITY_NORTH_WEST);
 
   /* Now notify the manager that we are done with this effect */
-  mutter_plugin_effect_completed (plugin, mc_window,
-                                  MUTTER_PLUGIN_MAXIMIZE);
+  meta_plugin_maximize_completed (plugin, window_actor);
 
   g_free (data);
 }
@@ -533,25 +521,26 @@ on_maximize_effect_complete (ClutterTimeline *timeline, EffectCompleteData *data
  * (Something like a sound would be more appropriate.)
  */
 static void
-maximize (MutterPlugin *plugin,
-          MutterWindow *mc_window,
+maximize (MetaPlugin *plugin,
+          MetaWindowActor *window_actor,
           gint end_x, gint end_y, gint end_width, gint end_height)
 {
-  MetaCompWindowType  type;
-  ClutterActor	     *actor = CLUTTER_ACTOR (mc_window);
+  MetaWindowType type;
+  ClutterActor *actor = CLUTTER_ACTOR (window_actor);
+  MetaWindow *meta_window = meta_window_actor_get_meta_window (window_actor);
 
   gdouble  scale_x    = 1.0;
   gdouble  scale_y    = 1.0;
   gfloat   anchor_x   = 0;
   gfloat   anchor_y   = 0;
 
-  type = mutter_window_get_window_type (mc_window);
+  type = meta_window_get_window_type (meta_window);
 
-  if (type == META_COMP_WINDOW_NORMAL)
+  if (type == META_WINDOW_NORMAL)
     {
       ClutterAnimation *animation;
       EffectCompleteData *data = g_new0 (EffectCompleteData, 1);
-      ActorPrivate *apriv = get_actor_private (mc_window);
+      ActorPrivate *apriv = get_actor_private (window_actor);
       gfloat width, height;
       gfloat x, y;
 
@@ -589,8 +578,7 @@ maximize (MutterPlugin *plugin,
       return;
     }
 
-  mutter_plugin_effect_completed (plugin, mc_window,
-                                  MUTTER_PLUGIN_MAXIMIZE);
+  meta_plugin_maximize_completed (plugin, window_actor);
 }
 
 /*
@@ -599,22 +587,22 @@ maximize (MutterPlugin *plugin,
  * (Just a skeleton code.)
  */
 static void
-unmaximize (MutterPlugin *plugin,
-            MutterWindow *mc_window,
+unmaximize (MetaPlugin *plugin,
+            MetaWindowActor *window_actor,
             gint end_x, gint end_y, gint end_width, gint end_height)
 {
-  MetaCompWindowType type = mutter_window_get_window_type (mc_window);
+  MetaWindow *meta_window = meta_window_actor_get_meta_window (window_actor);
+  MetaWindowType type = meta_window_get_window_type (meta_window);
 
-  if (type == META_COMP_WINDOW_NORMAL)
+  if (type == META_WINDOW_NORMAL)
     {
-      ActorPrivate *apriv = get_actor_private (mc_window);
+      ActorPrivate *apriv = get_actor_private (window_actor);
 
       apriv->is_maximized = FALSE;
     }
 
   /* Do this conditionally, if the effect requires completion callback. */
-  mutter_plugin_effect_completed (plugin, mc_window,
-                                  MUTTER_PLUGIN_UNMAXIMIZE);
+  meta_plugin_unmaximize_completed (plugin, window_actor);
 }
 
 static void
@@ -623,9 +611,9 @@ on_map_effect_complete (ClutterTimeline *timeline, EffectCompleteData *data)
   /*
    * Must reverse the effect of the effect.
    */
-  MutterPlugin  *plugin = data->plugin;
-  MutterWindow  *mc_window = MUTTER_WINDOW (data->actor);
-  ActorPrivate  *apriv     = get_actor_private (mc_window);
+  MetaPlugin *plugin = data->plugin;
+  MetaWindowActor  *window_actor = META_WINDOW_ACTOR (data->actor);
+  ActorPrivate  *apriv = get_actor_private (window_actor);
 
   apriv->tml_map = NULL;
 
@@ -633,7 +621,7 @@ on_map_effect_complete (ClutterTimeline *timeline, EffectCompleteData *data)
                                                 CLUTTER_GRAVITY_NORTH_WEST);
 
   /* Now notify the manager that we are done with this effect */
-  mutter_plugin_effect_completed (plugin, mc_window, MUTTER_PLUGIN_MAP);
+  meta_plugin_map_completed (plugin, window_actor);
 
   g_free (data);
 }
@@ -643,18 +631,19 @@ on_map_effect_complete (ClutterTimeline *timeline, EffectCompleteData *data)
  * completion).
  */
 static void
-map (MutterPlugin *plugin, MutterWindow *mc_window)
+map (MetaPlugin *plugin, MetaWindowActor *window_actor)
 {
-  MetaCompWindowType  type;
-  ClutterActor       *actor = CLUTTER_ACTOR (mc_window);
+  MetaWindowType type;
+  ClutterActor *actor = CLUTTER_ACTOR (window_actor);
+  MetaWindow *meta_window = meta_window_actor_get_meta_window (window_actor);
 
-  type = mutter_window_get_window_type (mc_window);
+  type = meta_window_get_window_type (meta_window);
 
-  if (type == META_COMP_WINDOW_NORMAL)
+  if (type == META_WINDOW_NORMAL)
     {
       ClutterAnimation *animation;
       EffectCompleteData *data = g_new0 (EffectCompleteData, 1);
-      ActorPrivate *apriv = get_actor_private (mc_window);
+      ActorPrivate *apriv = get_actor_private (window_actor);
 
       clutter_actor_move_anchor_point_from_gravity (actor,
                                                     CLUTTER_GRAVITY_CENTER);
@@ -679,8 +668,7 @@ map (MutterPlugin *plugin, MutterWindow *mc_window)
 
     }
   else
-    mutter_plugin_effect_completed (plugin, mc_window,
-                                    MUTTER_PLUGIN_MAP);
+    meta_plugin_map_completed (plugin, window_actor);
 }
 
 /*
@@ -690,32 +678,32 @@ map (MutterPlugin *plugin, MutterWindow *mc_window)
 static void
 on_destroy_effect_complete (ClutterTimeline *timeline, EffectCompleteData *data)
 {
-  MutterPlugin *plugin = data->plugin;
-  MutterWindow *mc_window = MUTTER_WINDOW (data->actor);
-  ActorPrivate *apriv = get_actor_private (mc_window);
+  MetaPlugin *plugin = data->plugin;
+  MetaWindowActor *window_actor = META_WINDOW_ACTOR (data->actor);
+  ActorPrivate *apriv = get_actor_private (window_actor);
 
   apriv->tml_destroy = NULL;
 
-  mutter_plugin_effect_completed (plugin, mc_window,
-                                  MUTTER_PLUGIN_DESTROY);
+  meta_plugin_destroy_completed (plugin, window_actor);
 }
 
 /*
  * Simple TV-out like effect.
  */
 static void
-destroy (MutterPlugin *plugin, MutterWindow *mc_window)
+destroy (MetaPlugin *plugin, MetaWindowActor *window_actor)
 {
-  MetaCompWindowType   type;
-  ClutterActor	      *actor = CLUTTER_ACTOR (mc_window);
+  MetaWindowType type;
+  ClutterActor *actor = CLUTTER_ACTOR (window_actor);
+  MetaWindow *meta_window = meta_window_actor_get_meta_window (window_actor);
 
-  type = mutter_window_get_window_type (mc_window);
+  type = meta_window_get_window_type (meta_window);
 
-  if (type == META_COMP_WINDOW_NORMAL)
+  if (type == META_WINDOW_NORMAL)
     {
       ClutterAnimation *animation;
       EffectCompleteData *data = g_new0 (EffectCompleteData, 1);
-      ActorPrivate *apriv = get_actor_private (mc_window);
+      ActorPrivate *apriv = get_actor_private (window_actor);
 
       clutter_actor_move_anchor_point_from_gravity (actor,
                                                     CLUTTER_GRAVITY_CENTER);
@@ -734,64 +722,59 @@ destroy (MutterPlugin *plugin, MutterWindow *mc_window)
                         data);
     }
   else
-    mutter_plugin_effect_completed (plugin, mc_window,
-                                    MUTTER_PLUGIN_DESTROY);
+    meta_plugin_destroy_completed (plugin, window_actor);
 }
 
 static void
-kill_effect (MutterPlugin *plugin, MutterWindow *mc_window, gulong event)
+kill_switch_workspace (MetaPlugin     *plugin)
+{
+  MetaDefaultPluginPrivate *priv = META_DEFAULT_PLUGIN (plugin)->priv;
+
+  if (priv->tml_switch_workspace1)
+    {
+      clutter_timeline_stop (priv->tml_switch_workspace1);
+      clutter_timeline_stop (priv->tml_switch_workspace2);
+      g_signal_emit_by_name (priv->tml_switch_workspace1, "completed", NULL);
+    }
+}
+
+static void
+kill_window_effects (MetaPlugin      *plugin,
+                     MetaWindowActor *window_actor)
 {
   ActorPrivate *apriv;
 
-  if (event & MUTTER_PLUGIN_SWITCH_WORKSPACE)
-    {
-      MutterDefaultPluginPrivate *priv = MUTTER_DEFAULT_PLUGIN (plugin)->priv;
+  apriv = get_actor_private (window_actor);
 
-      if (priv->tml_switch_workspace1)
-        {
-          clutter_timeline_stop (priv->tml_switch_workspace1);
-          clutter_timeline_stop (priv->tml_switch_workspace2);
-          g_signal_emit_by_name (priv->tml_switch_workspace1, "completed", NULL);
-        }
-
-      if (!(event & ~MUTTER_PLUGIN_SWITCH_WORKSPACE))
-        {
-          /* Workspace switch only, nothing more to do */
-          return;
-        }
-    }
-
-  apriv = get_actor_private (mc_window);
-
-  if ((event & MUTTER_PLUGIN_MINIMIZE) && apriv->tml_minimize)
+  if (apriv->tml_minimize)
     {
       clutter_timeline_stop (apriv->tml_minimize);
       g_signal_emit_by_name (apriv->tml_minimize, "completed", NULL);
     }
 
-  if ((event & MUTTER_PLUGIN_MAXIMIZE) && apriv->tml_maximize)
+  if (apriv->tml_maximize)
     {
       clutter_timeline_stop (apriv->tml_maximize);
       g_signal_emit_by_name (apriv->tml_maximize, "completed", NULL);
     }
 
-  if ((event & MUTTER_PLUGIN_MAP) && apriv->tml_map)
+  if (apriv->tml_map)
     {
       clutter_timeline_stop (apriv->tml_map);
       g_signal_emit_by_name (apriv->tml_map, "completed", NULL);
     }
 
-  if ((event & MUTTER_PLUGIN_DESTROY) && apriv->tml_destroy)
+  if (apriv->tml_destroy)
     {
       clutter_timeline_stop (apriv->tml_destroy);
       g_signal_emit_by_name (apriv->tml_destroy, "completed", NULL);
     }
 }
 
-static const MutterPluginInfo *
-plugin_info (MutterPlugin *plugin)
+static const MetaPluginInfo *
+plugin_info (MetaPlugin *plugin)
 {
-  MutterDefaultPluginPrivate *priv = MUTTER_DEFAULT_PLUGIN (plugin)->priv;
+  MetaDefaultPluginPrivate *priv = META_DEFAULT_PLUGIN (plugin)->priv;
 
   return &priv->info;
 }

src/compositor/region-utils.c

@@ -0,0 +1,334 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+/*
+ * Utilities for region manipulation
+ *
+ * Copyright (C) 2010 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+#include "region-utils.h"
+
+#include <math.h>
+
+/* MetaRegionBuilder */
+
+/* Various algorithms in this file require unioning together a set of rectangles
+ * that are unsorted or overlap; unioning such a set of rectangles 1-by-1
+ * using cairo_region_union_rectangle() produces O(N^2) behavior (if the union
+ * adds or removes rectangles in the middle of the region, then it has to
+ * move all the rectangles after that.) To avoid this behavior, MetaRegionBuilder
+ * creates regions for small groups of rectangles and merges them together in
+ * a binary tree.
+ *
+ * Possible improvement: From a glance at the code, accumulating all the rectangles
+ *  into a flat array and then calling the (not usefully documented)
+ *  cairo_region_create_rectangles() would have the same behavior and would be
+ *  simpler and a bit more efficient.
+ */
+
+/* Optimium performance seems to be with MAX_CHUNK_RECTANGLES=4; 8 is about 10% slower.
+ * But using 8 may be more robust to systems with slow malloc(). */
+#define MAX_CHUNK_RECTANGLES 8
+#define MAX_LEVELS 16
+
+typedef struct
+{
+  /* To merge regions in a binary tree, we need to keep track of The way these are filled is in the pattern:
+   *
+   * |a  |
+   * |b  |a  |
+   * |c  |   |ab |
+   * |d  |c  |ab |
+   * |e  |   |   |abcd|
+   */
+  cairo_region_t *levels[MAX_LEVELS];
+  int n_levels;
+} MetaRegionBuilder;
+
+static void
+meta_region_builder_init (MetaRegionBuilder *builder)
+{
+  int i;
+  for (i = 0; i < MAX_LEVELS; i++)
+    builder->levels[i] = NULL;
+  builder->n_levels = 1;
+}
+
+static void
+meta_region_builder_add_rectangle (MetaRegionBuilder *builder,
+                                   int                x,
+                                   int                y,
+                                   int                width,
+                                   int                height)
+{
+  cairo_rectangle_int_t rect;
+  int i;
+
+  if (builder->levels[0] == NULL)
+    builder->levels[0] = cairo_region_create ();
+
+  rect.x = x;
+  rect.y = y;
+  rect.width = width;
+  rect.height = height;
+
+  cairo_region_union_rectangle (builder->levels[0], &rect);
+  if (cairo_region_num_rectangles (builder->levels[0]) >= MAX_CHUNK_RECTANGLES)
+    {
+      for (i = 1; i < builder->n_levels + 1; i++)
+        {
+          if (builder->levels[i] == NULL)
+            {
+              if (i < MAX_LEVELS)
+                {
+                  builder->levels[i] = builder->levels[i - 1];
+                  builder->levels[i - 1] = NULL;
+                  if (i == builder->n_levels)
+                    builder->n_levels++;
+                }
+
+              break;
+            }
+          else
+            {
+              cairo_region_union (builder->levels[i], builder->levels[i - 1]);
+              cairo_region_destroy (builder->levels[i - 1]);
+              builder->levels[i - 1] = NULL;
+            }
+        }
+    }
+}
+
+static cairo_region_t *
+meta_region_builder_finish (MetaRegionBuilder *builder)
+{
+  cairo_region_t *result = NULL;
+  int i;
+
+  for (i = 0; i < builder->n_levels; i++)
+    {
+      if (builder->levels[i])
+        {
+          if (result == NULL)
+            result = builder->levels[i];
+          else
+            {
+              cairo_region_union(result, builder->levels[i]);
+              cairo_region_destroy (builder->levels[i]);
+            }
+        }
+    }
+
+  if (result == NULL)
+    result = cairo_region_create ();
+
+  return result;
+}
+
+
+/* MetaRegionIterator */
+
+void
+meta_region_iterator_init (MetaRegionIterator *iter,
+                           cairo_region_t     *region)
+{
+  iter->region = region;
+  iter->i = 0;
+  iter->n_rectangles = cairo_region_num_rectangles (region);
+  iter->line_start = TRUE;
+
+  if (iter->n_rectangles > 1)
+    {
+      cairo_region_get_rectangle (region, 0, &iter->rectangle);
+      cairo_region_get_rectangle (region, 1, &iter->next_rectangle);
+
+      iter->line_end = iter->next_rectangle.y != iter->rectangle.y;
+    }
+  else if (iter->n_rectangles > 0)
+    {
+      cairo_region_get_rectangle (region, 0, &iter->rectangle);
+      iter->line_end = TRUE;
+    }
+}
+
+gboolean
+meta_region_iterator_at_end (MetaRegionIterator *iter)
+{
+  return iter->i >= iter->n_rectangles;
+}
+
+void
+meta_region_iterator_next (MetaRegionIterator *iter)
+{
+  iter->i++;
+  iter->rectangle = iter->next_rectangle;
+  iter->line_start = iter->line_end;
+
+  if (iter->i < iter->n_rectangles)
+    {
+      cairo_region_get_rectangle (iter->region, iter->i + 1, &iter->next_rectangle);
+      iter->line_end = iter->next_rectangle.y != iter->rectangle.y;
+    }
+  else
+    {
+      iter->line_end = TRUE;
+    }
+}
+
+static void
+add_expanded_rect (MetaRegionBuilder  *builder,
+                   int                 x,
+                   int                 y,
+                   int                 width,
+                   int                 height,
+                   int                 x_amount,
+                   int                 y_amount,
+                   gboolean            flip)
+{
+  if (flip)
+    meta_region_builder_add_rectangle (builder,
+                                         y - y_amount, x - x_amount,
+                                         height + 2 * y_amount, width + 2 * x_amount);
+  else
+    meta_region_builder_add_rectangle (builder,
+                                         x - x_amount, y - y_amount,
+                                         width + 2 * x_amount, height + 2 * y_amount);
+}
+
+static cairo_region_t *
+expand_region (cairo_region_t *region,
+               int             x_amount,
+               int             y_amount,
+               gboolean        flip)
+{
+  MetaRegionBuilder builder;
+  int n;
+  int i;
+
+  meta_region_builder_init (&builder);
+
+  n = cairo_region_num_rectangles (region);
+  for (i = 0; i < n; i++)
+    {
+      cairo_rectangle_int_t rect;
+
+      cairo_region_get_rectangle (region, i, &rect);
+      add_expanded_rect (&builder,
+                         rect.x, rect.y, rect.width, rect.height,
+                         x_amount, y_amount, flip);
+    }
+
+  return meta_region_builder_finish (&builder);
+}
+
+/* This computes a (clipped version) of the inverse of the region
+ * and expands it by the given amount */
+static cairo_region_t *
+expand_region_inverse (cairo_region_t *region,
+                       int             x_amount,
+                       int             y_amount,
+                       gboolean        flip)
+{
+  MetaRegionBuilder builder;
+  MetaRegionIterator iter;
+  cairo_rectangle_int_t extents;
+  cairo_region_t *chunk;
+
+  int last_x;
+
+  meta_region_builder_init (&builder);
+
+  cairo_region_get_extents (region, &extents);
+  add_expanded_rect (&builder,
+                     extents.x, extents.y - 1, extents.width, 1,
+                     x_amount, y_amount, flip);
+  add_expanded_rect (&builder,
+                     extents.x - 1, extents.y, 1, extents.height,
+                     x_amount, y_amount, flip);
+  add_expanded_rect (&builder,
+                     extents.x + extents.width, extents.y, 1, extents.height,
+                     x_amount, y_amount, flip);
+  add_expanded_rect (&builder,
+                     extents.x, extents.y + extents.height, extents.width, 1,
+                     x_amount, y_amount, flip);
+
+  chunk = NULL;
+
+  last_x = extents.x;
+  for (meta_region_iterator_init (&iter, region);
+       !meta_region_iterator_at_end (&iter);
+       meta_region_iterator_next (&iter))
+    {
+      if (chunk == NULL)
+        chunk = cairo_region_create ();
+
+      if (iter.rectangle.x > last_x)
+        add_expanded_rect (&builder,
+                           last_x, iter.rectangle.y,
+                           iter.rectangle.x - last_x, iter.rectangle.height,
+                           x_amount, y_amount, flip);
+
+      if (iter.line_end)
+        {
+          if (extents.x + extents.width > iter.rectangle.x + iter.rectangle.width)
+            add_expanded_rect (&builder,
+                               iter.rectangle.x + iter.rectangle.width, iter.rectangle.y,
+                               (extents.x + extents.width) - (iter.rectangle.x + iter.rectangle.width), iter.rectangle.height,
+                               x_amount, y_amount, flip);
+          last_x = extents.x;
+        }
+      else
+        last_x = iter.rectangle.x + iter.rectangle.width;
+    }
+
+  return meta_region_builder_finish (&builder);
+}
+
+/**
+ * meta_make_border_region:
+ * @region: a #cairo_region_t
+ * @x_amount: distance from the border to extend horizontally
+ * @y_amount: distance from the border to extend vertically
+ * @flip: if true, the result is computed with x and y interchanged
+ *
+ * Computes the "border region" of a given region, which is roughly
+ * speaking the set of points near the boundary of the region.  If we
+ * define the operation of growing a region as computing the set of
+ * points within a given manhattan distance of the region, then the
+ * border is 'grow(region) intersect grow(inverse(region))'.
+ *
+ * If we create an image by filling the region with a solid color,
+ * the border is the region affected by blurring the region.
+ *
+ * Return value: a new region which is the border of the given region
+ */
+cairo_region_t *
+meta_make_border_region (cairo_region_t *region,
+                         int             x_amount,
+                         int             y_amount,
+                         gboolean        flip)
+{
+  cairo_region_t *border_region;
+  cairo_region_t *inverse_region;
+
+  border_region = expand_region (region, x_amount, y_amount, flip);
+  inverse_region = expand_region_inverse (region, x_amount, y_amount, flip);
+  cairo_region_intersect (border_region, inverse_region);
+  cairo_region_destroy (inverse_region);
+
+  return border_region;
+}

src/compositor/region-utils.h

@@ -0,0 +1,76 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+/*
+ * Utilities for region manipulation
+ *
+ * Copyright (C) 2010 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+#ifndef __META_REGION_UTILS_H__
+#define __META_REGION_UTILS_H__
+
+#include <clutter/clutter.h>
+
+#include <cairo.h>
+#include <glib.h>
+
+/**
+ * MetaRegionIterator:
+ * @region: region being iterated
+ * @rectangle: current rectangle
+ * @line_start: whether the current rectangle starts a horizontal band
+ * @line_end: whether the current rectangle ends a horizontal band
+ *
+ * cairo_region_t is a yx banded region; sometimes its useful to iterate through
+ * such a region treating the start and end of each horizontal band in a distinct
+ * fashion.
+ *
+ * Usage:
+ *
+ *  MetaRegionIterator iter;
+ *  for (meta_region_iterator_init (&iter, region);
+ *       !meta_region_iterator_at_end (&iter);
+ *       meta_region_iterator_next (&iter))
+ *  {
+ *    [ Use iter.rectangle, iter.line_start, iter.line_end ]
+ *  }
+ */
+typedef struct _MetaRegionIterator MetaRegionIterator;
+
+struct _MetaRegionIterator {
+  cairo_region_t *region;
+  cairo_rectangle_int_t rectangle;
+  gboolean line_start;
+  gboolean line_end;
+  int i;
+
+  /*< private >*/
+  int n_rectangles;
+  cairo_rectangle_int_t next_rectangle;
+};
+
+void     meta_region_iterator_init      (MetaRegionIterator *iter,
+                                         cairo_region_t     *region);
+gboolean meta_region_iterator_at_end    (MetaRegionIterator *iter);
+void     meta_region_iterator_next      (MetaRegionIterator *iter);
+
+cairo_region_t *meta_make_border_region (cairo_region_t *region,
+                                         int             x_amount,
+                                         int             y_amount,
+                                         gboolean        flip);
+
+#endif /* __META_REGION_UTILS_H__ */

src/compositor/shadow.c

@@ -1,350 +0,0 @@
-/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
-
-#define _GNU_SOURCE /* For M_PI */
-
-#include <math.h>
-
-#include "compositor-private.h"
-#include "shadow.h"
-#include "tidy/tidy-texture-frame.h"
-
-#define SHADOW_RADIUS 8
-#define SHADOW_OPACITY	0.9
-#define SHADOW_OFFSET_X	(SHADOW_RADIUS)
-#define SHADOW_OFFSET_Y	(SHADOW_RADIUS)
-
-#define MAX_TILE_SZ 8 	/* Must be <= shaddow radius */
-#define TILE_WIDTH  (3*MAX_TILE_SZ)
-#define TILE_HEIGHT (3*MAX_TILE_SZ)
-
-static unsigned char* shadow_gaussian_make_tile (void);
-
-ClutterActor *
-mutter_create_shadow_frame (MetaCompositor *compositor)
-{
-  ClutterActor *frame;
-
-  if (!compositor->shadow_src)
-    {
-      guchar *data;
-
-      data = shadow_gaussian_make_tile ();
-
-      compositor->shadow_src = clutter_texture_new ();
-
-      clutter_texture_set_from_rgb_data (CLUTTER_TEXTURE (compositor->shadow_src),
-                                         data,
-                                         TRUE,
-                                         TILE_WIDTH,
-                                         TILE_HEIGHT,
-                                         TILE_WIDTH*4,
-                                         4,
-                                         0,
-                                         NULL);
-      g_free (data);
-    }
-
-  frame = tidy_texture_frame_new (CLUTTER_TEXTURE (compositor->shadow_src),
-                                  MAX_TILE_SZ,
-                                  MAX_TILE_SZ,
-                                  MAX_TILE_SZ,
-                                  MAX_TILE_SZ);
-
-  clutter_actor_set_position (frame,
-                              SHADOW_OFFSET_X , SHADOW_OFFSET_Y);
-
-  return frame;
-}
-
-typedef struct GaussianMap
-{
-  int	   size;
-  double * data;
-} GaussianMap;
-
-static double
-gaussian (double r, double x, double y)
-{
-  return ((1 / (sqrt (2 * M_PI * r))) *
-	  exp ((- (x * x + y * y)) / (2 * r * r)));
-}
-
-
-static GaussianMap *
-make_gaussian_map (double r)
-{
-  GaussianMap  *c;
-  int	          size = ((int) ceil ((r * 3)) + 1) & ~1;
-  int	          center = size / 2;
-  int	          x, y;
-  double          t = 0.0;
-  double          g;
-
-  c = g_malloc (sizeof (GaussianMap) + size * size * sizeof (double));
-  c->size = size;
-
-  c->data = (double *) (c + 1);
-
-  for (y = 0; y < size; y++)
-    for (x = 0; x < size; x++)
-      {
-	g = gaussian (r, (double) (x - center), (double) (y - center));
-	t += g;
-	c->data[y * size + x] = g;
-      }
-
-  for (y = 0; y < size; y++)
-    for (x = 0; x < size; x++)
-      c->data[y*size + x] /= t;
-
-  return c;
-}
-
-static unsigned char
-sum_gaussian (GaussianMap * map, double opacity,
-              int x, int y, int width, int height)
-{
-  int	           fx, fy;
-  double         * g_data;
-  double         * g_line = map->data;
-  int	           g_size = map->size;
-  int	           center = g_size / 2;
-  int	           fx_start, fx_end;
-  int	           fy_start, fy_end;
-  double           v;
-  unsigned int     r;
-
-  /*
-   * Compute set of filter values which are "in range",
-   * that's the set with:
-   *	0 <= x + (fx-center) && x + (fx-center) < width &&
-   *  0 <= y + (fy-center) && y + (fy-center) < height
-   *
-   *  0 <= x + (fx - center)	x + fx - center < width
-   *  center - x <= fx	fx < width + center - x
-   */
-
-  fx_start = center - x;
-  if (fx_start < 0)
-    fx_start = 0;
-  fx_end = width + center - x;
-  if (fx_end > g_size)
-    fx_end = g_size;
-
-  fy_start = center - y;
-  if (fy_start < 0)
-    fy_start = 0;
-  fy_end = height + center - y;
-  if (fy_end > g_size)
-    fy_end = g_size;
-
-  g_line = g_line + fy_start * g_size + fx_start;
-
-  v = 0;
-  for (fy = fy_start; fy < fy_end; fy++)
-    {
-      g_data = g_line;
-      g_line += g_size;
-
-      for (fx = fx_start; fx < fx_end; fx++)
-	v += *g_data++;
-    }
-  if (v > 1)
-    v = 1;
-
-  v *= (opacity * 255.0);
-
-  r = (unsigned int) v;
-
-  return (unsigned char) r;
-}
-
-static unsigned char *
-shadow_gaussian_make_tile ()
-{
-  unsigned char              * data;
-  int		               size;
-  int		               center;
-  int		               x, y;
-  unsigned char                d;
-  int                          pwidth, pheight;
-  double                       opacity = SHADOW_OPACITY;
-  static GaussianMap       * gaussian_map = NULL;
-
-  struct _mypixel
-  {
-    unsigned char r;
-    unsigned char g;
-    unsigned char b;
-    unsigned char a;
-  } * _d;
-
-
-  if (!gaussian_map)
-    gaussian_map =
-      make_gaussian_map (SHADOW_RADIUS);
-
-  size   = gaussian_map->size;
-  center = size / 2;
-
-  /* Top & bottom */
-
-  pwidth  = MAX_TILE_SZ;
-  pheight = MAX_TILE_SZ;
-
-  data = g_malloc0 (4 * TILE_WIDTH * TILE_HEIGHT);
-
-  _d = (struct _mypixel*) data;
-
-  /* N */
-  for (y = 0; y < pheight; y++)
-    {
-      d = sum_gaussian (gaussian_map, opacity,
-                        center, y - center,
-                        TILE_WIDTH, TILE_HEIGHT);
-      for (x = 0; x < pwidth; x++)
-	{
-	  _d[y*3*pwidth + x + pwidth].r = 0;
-	  _d[y*3*pwidth + x + pwidth].g = 0;
-	  _d[y*3*pwidth + x + pwidth].b = 0;
-	  _d[y*3*pwidth + x + pwidth].a = d;
-	}
-
-    }
-
-  /* S */
-  pwidth = MAX_TILE_SZ;
-  pheight = MAX_TILE_SZ;
-
-  for (y = 0; y < pheight; y++)
-    {
-      d = sum_gaussian (gaussian_map, opacity,
-                        center, y - center,
-                        TILE_WIDTH, TILE_HEIGHT);
-      for (x = 0; x < pwidth; x++)
-	{
-	  _d[(pheight-y-1)*3*pwidth + 6*pwidth*pheight + x + pwidth].r = 0;
-	  _d[(pheight-y-1)*3*pwidth + 6*pwidth*pheight + x + pwidth].g = 0;
-	  _d[(pheight-y-1)*3*pwidth + 6*pwidth*pheight + x + pwidth].b = 0;
-	  _d[(pheight-y-1)*3*pwidth + 6*pwidth*pheight + x + pwidth].a = d;
-	}
-
-    }
-
-
-  /* w */
-  pwidth = MAX_TILE_SZ;
-  pheight = MAX_TILE_SZ;
-
-  for (x = 0; x < pwidth; x++)
-    {
-      d = sum_gaussian (gaussian_map, opacity,
-                        x - center, center,
-                        TILE_WIDTH, TILE_HEIGHT);
-      for (y = 0; y < pheight; y++)
-	{
-	  _d[y*3*pwidth + 3*pwidth*pheight + x].r = 0;
-	  _d[y*3*pwidth + 3*pwidth*pheight + x].g = 0;
-	  _d[y*3*pwidth + 3*pwidth*pheight + x].b = 0;
-	  _d[y*3*pwidth + 3*pwidth*pheight + x].a = d;
-	}
-
-    }
-
-  /* E */
-  for (x = 0; x < pwidth; x++)
-    {
-      d = sum_gaussian (gaussian_map, opacity,
-					       x - center, center,
-					       TILE_WIDTH, TILE_HEIGHT);
-      for (y = 0; y < pheight; y++)
-	{
-	  _d[y*3*pwidth + 3*pwidth*pheight + (pwidth-x-1) + 2*pwidth].r = 0;
-	  _d[y*3*pwidth + 3*pwidth*pheight + (pwidth-x-1) + 2*pwidth].g = 0;
-	  _d[y*3*pwidth + 3*pwidth*pheight + (pwidth-x-1) + 2*pwidth].b = 0;
-	  _d[y*3*pwidth + 3*pwidth*pheight + (pwidth-x-1) + 2*pwidth].a = d;
-	}
-
-    }
-
-  /* NW */
-  pwidth = MAX_TILE_SZ;
-  pheight = MAX_TILE_SZ;
-
-  for (x = 0; x < pwidth; x++)
-    for (y = 0; y < pheight; y++)
-      {
-	d = sum_gaussian (gaussian_map, opacity,
-                          x-center, y-center,
-                          TILE_WIDTH, TILE_HEIGHT);
-
-	_d[y*3*pwidth + x].r = 0;
-	_d[y*3*pwidth + x].g = 0;
-	_d[y*3*pwidth + x].b = 0;
-	_d[y*3*pwidth + x].a = d;
-      }
-
-  /* SW */
-  for (x = 0; x < pwidth; x++)
-    for (y = 0; y < pheight; y++)
-      {
-	d = sum_gaussian (gaussian_map, opacity,
-                          x-center, y-center,
-                          TILE_WIDTH, TILE_HEIGHT);
-
-	_d[(pheight-y-1)*3*pwidth + 6*pwidth*pheight + x].r = 0;
-	_d[(pheight-y-1)*3*pwidth + 6*pwidth*pheight + x].g = 0;
-	_d[(pheight-y-1)*3*pwidth + 6*pwidth*pheight + x].b = 0;
-	_d[(pheight-y-1)*3*pwidth + 6*pwidth*pheight + x].a = d;
-      }
-
-  /* SE */
-  for (x = 0; x < pwidth; x++)
-    for (y = 0; y < pheight; y++)
-      {
-	d = sum_gaussian (gaussian_map, opacity,
-                          x-center, y-center,
-                          TILE_WIDTH, TILE_HEIGHT);
-
-	_d[(pheight-y-1)*3*pwidth + 6*pwidth*pheight + (pwidth-x-1) +
-	   2*pwidth].r = 0;
-	_d[(pheight-y-1)*3*pwidth + 6*pwidth*pheight + (pwidth-x-1) +
-	   2*pwidth].g = 0;
-	_d[(pheight-y-1)*3*pwidth + 6*pwidth*pheight + (pwidth-x-1) +
-	   2*pwidth].b = 0;
-	_d[(pheight-y-1)*3*pwidth + 6*pwidth*pheight + (pwidth-x-1) +
-	   2*pwidth].a = d;
-      }
-
-  /* NE */
-  for (x = 0; x < pwidth; x++)
-    for (y = 0; y < pheight; y++)
-      {
-	d = sum_gaussian (gaussian_map, opacity,
-                          x-center, y-center,
-                          TILE_WIDTH, TILE_HEIGHT);
-
-	_d[y*3*pwidth + (pwidth - x - 1) + 2*pwidth].r = 0;
-	_d[y*3*pwidth + (pwidth - x - 1) + 2*pwidth].g = 0;
-	_d[y*3*pwidth + (pwidth - x - 1) + 2*pwidth].b = 0;
-	_d[y*3*pwidth + (pwidth - x - 1) + 2*pwidth].a = d;
-      }
-
-  /* center */
-  pwidth = MAX_TILE_SZ;
-  pheight = MAX_TILE_SZ;
-
-  d = sum_gaussian (gaussian_map, opacity,
-                    center, center, TILE_WIDTH, TILE_HEIGHT);
-
-  for (x = 0; x < pwidth; x++)
-    for (y = 0; y < pheight; y++)
-      {
-	_d[y*3*pwidth + 3*pwidth*pheight + x + pwidth].r = 0;
-	_d[y*3*pwidth + 3*pwidth*pheight + x + pwidth].g = 0;
-	_d[y*3*pwidth + 3*pwidth*pheight + x + pwidth].b = 0;
-	_d[y*3*pwidth + 3*pwidth*pheight + x + pwidth].a = 0;
-      }
-
-  return data;
-}

src/compositor/shadow.h

@@ -1,9 +0,0 @@
-#ifndef SHADOW_H
-#define SHADOW_H
-
-#include <clutter/clutter.h>
-#include "compositor.h"
-
-ClutterActor *mutter_create_shadow_frame (MetaCompositor *compositor);
-
-#endif /* SHADOW_H */

src/compositor/tidy/tidy-texture-frame.c

@@ -1,641 +0,0 @@
-/* tidy-texture-frame.h: Expandible texture actor
- *
- * Copyright (C) 2007 OpenedHand
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-/**
- * SECTION:tidy-texture-frame
- * @short_description: Stretch a texture to fit the entire allocation
- *
- * #TidyTextureFrame
- *
- */
-
-#include <cogl/cogl.h>
-
-#include "tidy-texture-frame.h"
-
-#define TIDY_PARAM_READABLE     \
-        (G_PARAM_READABLE |     \
-         G_PARAM_STATIC_NICK | G_PARAM_STATIC_NAME | G_PARAM_STATIC_BLURB)
-
-#define TIDY_PARAM_READWRITE    \
-        (G_PARAM_READABLE | G_PARAM_WRITABLE | \
-         G_PARAM_STATIC_NICK | G_PARAM_STATIC_NAME | G_PARAM_STATIC_BLURB)
-
-enum
-{
-  PROP_0,
-
-  PROP_PARENT_TEXTURE,
-
-  PROP_LEFT,
-  PROP_TOP,
-  PROP_RIGHT,
-  PROP_BOTTOM
-};
-
-G_DEFINE_TYPE (TidyTextureFrame, tidy_texture_frame, CLUTTER_TYPE_ACTOR);
-
-#define TIDY_TEXTURE_FRAME_GET_PRIVATE(obj)     (G_TYPE_INSTANCE_GET_PRIVATE ((obj), TIDY_TYPE_TEXTURE_FRAME, TidyTextureFramePrivate))
-
-struct _TidyTextureFramePrivate
-{
-  ClutterTexture *parent_texture;
-
-  gfloat left;
-  gfloat top;
-  gfloat right;
-  gfloat bottom;
-
-  CoglHandle material;
-
-  guint needs_paint : 1;
-};
-
-static void
-tidy_texture_frame_get_preferred_width (ClutterActor *self,
-                                        gfloat        for_height,
-                                        gfloat       *min_width_p,
-                                        gfloat       *natural_width_p)
-{
-  TidyTextureFramePrivate *priv = TIDY_TEXTURE_FRAME (self)->priv;
-
-  if (G_UNLIKELY (priv->parent_texture == NULL))
-    {
-      if (min_width_p)
-        *min_width_p = 0;
-
-      if (natural_width_p)
-        *natural_width_p = 0;
-    }
-  else
-    {
-      ClutterActorClass *klass;
-
-      /* by directly querying the parent texture's class implementation
-       * we are going around any override mechanism the parent texture
-       * might have in place, and we ask directly for the original
-       * preferred width
-       */
-      klass = CLUTTER_ACTOR_GET_CLASS (priv->parent_texture);
-      klass->get_preferred_width (CLUTTER_ACTOR (priv->parent_texture),
-                                  for_height,
-                                  min_width_p,
-                                  natural_width_p);
-    }
-}
-
-static void
-tidy_texture_frame_get_preferred_height (ClutterActor *self,
-                                         gfloat        for_width,
-                                         gfloat       *min_height_p,
-                                         gfloat       *natural_height_p)
-{
-  TidyTextureFramePrivate *priv = TIDY_TEXTURE_FRAME (self)->priv;
-
-  if (G_UNLIKELY (priv->parent_texture == NULL))
-    {
-      if (min_height_p)
-        *min_height_p = 0;
-
-      if (natural_height_p)
-        *natural_height_p = 0;
-    }
-  else
-    {
-      ClutterActorClass *klass;
-
-      /* by directly querying the parent texture's class implementation
-       * we are going around any override mechanism the parent texture
-       * might have in place, and we ask directly for the original
-       * preferred height
-       */
-      klass = CLUTTER_ACTOR_GET_CLASS (priv->parent_texture);
-      klass->get_preferred_height (CLUTTER_ACTOR (priv->parent_texture),
-                                   for_width,
-                                   min_height_p,
-                                   natural_height_p);
-    }
-}
-
-static void
-tidy_texture_frame_realize (ClutterActor *self)
-{
-  TidyTextureFramePrivate *priv = TIDY_TEXTURE_FRAME (self)->priv;
-
-  if (priv->material != COGL_INVALID_HANDLE)
-    return;
-
-  priv->material = cogl_material_new ();
-
-  CLUTTER_ACTOR_SET_FLAGS (self, CLUTTER_ACTOR_REALIZED);
-}
-
-static void
-tidy_texture_frame_unrealize (ClutterActor *self)
-{
-  TidyTextureFramePrivate *priv = TIDY_TEXTURE_FRAME (self)->priv;
-
-  if (priv->material == COGL_INVALID_HANDLE)
-    return;
-
-  cogl_material_unref (priv->material);
-  priv->material = COGL_INVALID_HANDLE;
-
-  CLUTTER_ACTOR_UNSET_FLAGS (self, CLUTTER_ACTOR_REALIZED);
-}
-
-static void
-tidy_texture_frame_paint (ClutterActor *self)
-{
-  TidyTextureFramePrivate *priv = TIDY_TEXTURE_FRAME (self)->priv;
-  CoglHandle cogl_texture = COGL_INVALID_HANDLE;
-  ClutterActorBox box = { 0, };
-  gfloat width, height;
-  gfloat tex_width, tex_height;
-  gfloat ex, ey;
-  gfloat tx1, ty1, tx2, ty2;
-  guint8 opacity;
-
-  /* no need to paint stuff if we don't have a texture */
-  if (G_UNLIKELY (priv->parent_texture == NULL))
-    return;
-
-  if (!priv->needs_paint)
-    return;
-
-  /* parent texture may have been hidden, so need to make sure it gets
-   * realized
-   */
-  if (!CLUTTER_ACTOR_IS_REALIZED (priv->parent_texture))
-    clutter_actor_realize (CLUTTER_ACTOR (priv->parent_texture));
-
-  cogl_texture = clutter_texture_get_cogl_texture (priv->parent_texture);
-  if (cogl_texture == COGL_INVALID_HANDLE)
-    return;
-
-  tex_width  = cogl_texture_get_width (cogl_texture);
-  tex_height = cogl_texture_get_height (cogl_texture);
-
-  clutter_actor_get_allocation_box (self, &box);
-  width = box.x2 - box.x1;
-  height = box.y2 - box.y1;
-
-  tx1 = priv->left / tex_width;
-  tx2 = (tex_width - priv->right) / tex_width;
-  ty1 = priv->top / tex_height;
-  ty2 = (tex_height - priv->bottom) / tex_height;
-
-  ex = width - priv->right;
-  if (ex < 0)
-    ex = priv->right; 		/* FIXME ? */
-
-  ey = height - priv->bottom;
-  if (ey < 0)
-    ey = priv->bottom; 		/* FIXME ? */
-
-  opacity = clutter_actor_get_paint_opacity (self);
-
-  g_assert (priv->material != COGL_INVALID_HANDLE);
-
-  /* set the source material using the parent texture's COGL handle */
-  cogl_material_set_color4ub (priv->material, opacity, opacity, opacity, opacity);
-  cogl_material_set_layer (priv->material, 0, cogl_texture);
-  cogl_set_source (priv->material);
-
-  /* top left corner */
-  cogl_rectangle_with_texture_coords (0, 0, priv->left, priv->top,
-                                      0.0, 0.0,
-                                      tx1, ty1);
-
-  /* top middle */
-  cogl_rectangle_with_texture_coords (priv->left, 0, ex, priv->top,
-                                      tx1, 0.0,
-                                      tx2, ty1);
-
-  /* top right */
-  cogl_rectangle_with_texture_coords (ex, 0, width, priv->top,
-                                      tx2, 0.0,
-                                      1.0, ty1);
-
-  /* mid left */
-  cogl_rectangle_with_texture_coords (0, priv->top, priv->left, ey,
-                                      0.0, ty1,
-                                      tx1, ty2);
-
-  /* center */
-  cogl_rectangle_with_texture_coords (priv->left, priv->top, ex, ey,
-                                      tx1, ty1,
-                                      tx2, ty2);
-
-  /* mid right */
-  cogl_rectangle_with_texture_coords (ex, priv->top, width, ey,
-                                      tx2, ty1,
-                                      1.0, ty2);
-  
-  /* bottom left */
-  cogl_rectangle_with_texture_coords (0, ey, priv->left, height,
-                                      0.0, ty2,
-                                      tx1, 1.0);
-
-  /* bottom center */
-  cogl_rectangle_with_texture_coords (priv->left, ey, ex, height,
-                                      tx1, ty2,
-                                      tx2, 1.0);
-
-  /* bottom right */
-  cogl_rectangle_with_texture_coords (ex, ey, width, height,
-                                      tx2, ty2,
-                                      1.0, 1.0);
-}
-
-static inline void
-tidy_texture_frame_set_frame_internal (TidyTextureFrame *frame,
-                                       gfloat            left,
-                                       gfloat            top,
-                                       gfloat            right,
-                                       gfloat            bottom)
-{
-  TidyTextureFramePrivate *priv = frame->priv;
-  GObject *gobject = G_OBJECT (frame);
-  gboolean changed = FALSE;
-
-  g_object_freeze_notify (gobject);
-
-  if (priv->top != top)
-    {
-      priv->top = top;
-      g_object_notify (gobject, "top");
-      changed = TRUE;
-    }
-
-  if (priv->right != right)
-    {
-      priv->right = right;
-      g_object_notify (gobject, "right");
-      changed = TRUE;
-    }
-
-  if (priv->bottom != bottom)
-    {
-      priv->bottom = bottom;
-      g_object_notify (gobject, "bottom");
-      changed = TRUE;
-    }
-
-  if (priv->left != left)
-    {
-      priv->left = left;
-      g_object_notify (gobject, "left");
-      changed = TRUE;
-    }
-
-  if (changed && CLUTTER_ACTOR_IS_VISIBLE (frame))
-    clutter_actor_queue_redraw (CLUTTER_ACTOR (frame));
-
-  g_object_thaw_notify (gobject);
-}
-
-static void
-tidy_texture_frame_set_property (GObject      *gobject,
-                                 guint         prop_id,
-                                 const GValue *value,
-                                 GParamSpec   *pspec)
-{
-  TidyTextureFrame *frame = TIDY_TEXTURE_FRAME (gobject);
-  TidyTextureFramePrivate *priv = frame->priv;
-
-  switch (prop_id)
-    {
-    case PROP_PARENT_TEXTURE:
-      tidy_texture_frame_set_parent_texture (frame,
-                                             g_value_get_object (value));
-      break;
-
-    case PROP_TOP:
-      tidy_texture_frame_set_frame_internal (frame,
-                                             priv->left,
-                                             g_value_get_float (value),
-                                             priv->right,
-                                             priv->bottom);
-      break;
-
-    case PROP_RIGHT:
-      tidy_texture_frame_set_frame_internal (frame,
-                                             priv->top,
-                                             g_value_get_float (value),
-                                             priv->bottom,
-                                             priv->left);
-      break;
-
-    case PROP_BOTTOM:
-      tidy_texture_frame_set_frame_internal (frame,
-                                             priv->top,
-                                             priv->right,
-                                             g_value_get_float (value),
-                                             priv->left);
-      break;
-
-    case PROP_LEFT:
-      tidy_texture_frame_set_frame_internal (frame,
-                                             priv->top,
-                                             priv->right,
-                                             priv->bottom,
-                                             g_value_get_float (value));
-      break;
-
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
-      break;
-    }
-}
-
-static void
-tidy_texture_frame_get_property (GObject    *gobject,
-                                 guint       prop_id,
-                                 GValue     *value,
-                                 GParamSpec *pspec)
-{
-  TidyTextureFramePrivate *priv = TIDY_TEXTURE_FRAME (gobject)->priv;
-
-  switch (prop_id)
-    {
-    case PROP_PARENT_TEXTURE:
-      g_value_set_object (value, priv->parent_texture);
-      break;
-
-    case PROP_LEFT:
-      g_value_set_float (value, priv->left);
-      break;
-
-    case PROP_TOP:
-      g_value_set_float (value, priv->top);
-      break;
-
-    case PROP_RIGHT:
-      g_value_set_float (value, priv->right);
-      break;
-
-    case PROP_BOTTOM:
-      g_value_set_float (value, priv->bottom);
-      break;
-
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
-      break;
-    }
-}
-
-static void
-tidy_texture_frame_dispose (GObject *gobject)
-{
-  TidyTextureFramePrivate *priv = TIDY_TEXTURE_FRAME (gobject)->priv;
-
-  if (priv->parent_texture)
-    {
-      g_object_unref (priv->parent_texture);
-      priv->parent_texture = NULL;
-    }
-
-  if (priv->material)
-    {
-      cogl_material_unref (priv->material);
-      priv->material = COGL_INVALID_HANDLE;
-    }
-
-  G_OBJECT_CLASS (tidy_texture_frame_parent_class)->dispose (gobject);
-}
-
-static void
-tidy_texture_frame_class_init (TidyTextureFrameClass *klass)
-{
-  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
-  ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
-  GParamSpec *pspec;
-
-  g_type_class_add_private (gobject_class, sizeof (TidyTextureFramePrivate));
-
-  actor_class->get_preferred_width =
-    tidy_texture_frame_get_preferred_width;
-  actor_class->get_preferred_height =
-    tidy_texture_frame_get_preferred_height;
-  actor_class->realize = tidy_texture_frame_realize;
-  actor_class->unrealize = tidy_texture_frame_unrealize;
-  actor_class->paint = tidy_texture_frame_paint;
-
-  gobject_class->set_property = tidy_texture_frame_set_property;
-  gobject_class->get_property = tidy_texture_frame_get_property;
-  gobject_class->dispose = tidy_texture_frame_dispose;
-
-  pspec = g_param_spec_object ("parent-texture",
-                               "Parent Texture",
-                               "The parent ClutterTexture",
-                               CLUTTER_TYPE_TEXTURE,
-                               TIDY_PARAM_READWRITE |
-                               G_PARAM_CONSTRUCT);
-  g_object_class_install_property (gobject_class, PROP_PARENT_TEXTURE, pspec);
-
-  pspec = g_param_spec_float ("left",
-                              "Left",
-                              "Left offset",
-			      0, G_MAXFLOAT,
-                              0,
-                              TIDY_PARAM_READWRITE);
-  g_object_class_install_property (gobject_class, PROP_LEFT, pspec);
-
-  pspec = g_param_spec_float ("top",
-                              "Top",
-                              "Top offset",
-                              0, G_MAXFLOAT,
-                              0,
-                              TIDY_PARAM_READWRITE);
-  g_object_class_install_property (gobject_class, PROP_TOP, pspec);
-
-  pspec = g_param_spec_float ("bottom",
-                              "Bottom",
-                              "Bottom offset",
-                              0, G_MAXFLOAT,
-                              0,
-                              TIDY_PARAM_READWRITE);
-  g_object_class_install_property (gobject_class, PROP_BOTTOM, pspec);
-
-  pspec = g_param_spec_float ("right",
-                              "Right",
-                              "Right offset",
-                              0, G_MAXFLOAT,
-                              0,
-                              TIDY_PARAM_READWRITE);
-  g_object_class_install_property (gobject_class, PROP_RIGHT, pspec);
-}
-
-static void
-tidy_texture_frame_init (TidyTextureFrame *self)
-{
-  TidyTextureFramePrivate *priv;
-
-  self->priv = priv = TIDY_TEXTURE_FRAME_GET_PRIVATE (self);
-
-  priv->material = COGL_INVALID_HANDLE;
-}
-
-/**
- * tidy_texture_frame_new:
- * @texture: a #ClutterTexture or %NULL
- * @left: left margin preserving its content
- * @top: top margin preserving its content
- * @right: right margin preserving its content
- * @bottom: bottom margin preserving its content
- *
- * A #TidyTextureFrame is a specialized texture that efficiently clones
- * an area of the given @texture while keeping preserving portions of the
- * same texture.
- *
- * A #TidyTextureFrame can be used to make a rectangular texture fit a
- * given size without stretching its borders.
- *
- * Return value: the newly created #TidyTextureFrame
- */
-ClutterActor*
-tidy_texture_frame_new (ClutterTexture *texture, 
-			gfloat          left,
-			gfloat          top,
-			gfloat          right,
-			gfloat          bottom)
-{
-  g_return_val_if_fail (texture == NULL || CLUTTER_IS_TEXTURE (texture), NULL);
-
-  return g_object_new (TIDY_TYPE_TEXTURE_FRAME,
- 		       "parent-texture", texture,
-		       "left", left,
-		       "top", top,
-		       "right", right,
-		       "bottom", bottom,
-		       NULL);
-}
-
-ClutterTexture *
-tidy_texture_frame_get_parent_texture (TidyTextureFrame *frame)
-{
-  g_return_val_if_fail (TIDY_IS_TEXTURE_FRAME (frame), NULL);
-
-  return frame->priv->parent_texture;
-}
-
-void
-tidy_texture_frame_set_parent_texture (TidyTextureFrame *frame,
-                                       ClutterTexture   *texture)
-{
-  TidyTextureFramePrivate *priv;
-  gboolean was_visible;
-
-  g_return_if_fail (TIDY_IS_TEXTURE_FRAME (frame));
-  g_return_if_fail (texture == NULL || CLUTTER_IS_TEXTURE (texture));
-
-  priv = frame->priv;
-
-  was_visible = CLUTTER_ACTOR_IS_VISIBLE (frame);
-
-  if (priv->parent_texture == texture)
-    return;
-
-  if (priv->parent_texture)
-    {
-      g_object_unref (priv->parent_texture);
-      priv->parent_texture = NULL;
-
-      if (was_visible)
-        clutter_actor_hide (CLUTTER_ACTOR (frame));
-    }
-
-  if (texture)
-    {
-      priv->parent_texture = g_object_ref (texture);
-
-      if (was_visible && CLUTTER_ACTOR_IS_VISIBLE (priv->parent_texture))
-        clutter_actor_show (CLUTTER_ACTOR (frame));
-    }
-
-  clutter_actor_queue_relayout (CLUTTER_ACTOR (frame));
-
-  g_object_notify (G_OBJECT (frame), "parent-texture");
-}
-
-void
-tidy_texture_frame_set_frame (TidyTextureFrame *frame,
-                              gfloat            top,
-                              gfloat            right,
-                              gfloat            bottom,
-                              gfloat            left)
-{
-  g_return_if_fail (TIDY_IS_TEXTURE_FRAME (frame));
-
-  tidy_texture_frame_set_frame_internal (frame, top, right, bottom, left);
-}
-
-void
-tidy_texture_frame_get_frame (TidyTextureFrame *frame,
-                              gfloat           *top,
-                              gfloat           *right,
-                              gfloat           *bottom,
-                              gfloat           *left)
-{
-  TidyTextureFramePrivate *priv;
-
-  g_return_if_fail (TIDY_IS_TEXTURE_FRAME (frame));
-
-  priv = frame->priv;
-
-  if (top)
-    *top = priv->top;
-
-  if (right)
-    *right = priv->right;
-
-  if (bottom)
-    *bottom = priv->bottom;
-
-  if (left)
-    *left = priv->left;
-}
-
-/**
- * tidy_texture_frame_set_needs_paint:
- * @frame: a #TidyTextureframe
- * @needs_paint: if %FALSE, the paint will be skipped
- *
- * Provides a hint to the texture frame that it is totally obscured
- * and doesn't need to be painted. This would typically be called
- * by a parent container if it detects the condition prior to
- * painting its children and then unset afterwards.
- *
- * Since it is not supposed to have any effect on display, it does
- * not queue a repaint.
- */
-void
-tidy_texture_frame_set_needs_paint (TidyTextureFrame *frame,
-				    gboolean          needs_paint)
-{
-  TidyTextureFramePrivate *priv;
-
-  g_return_if_fail (TIDY_IS_TEXTURE_FRAME (frame));
-
-  priv = frame->priv;
-
-  priv->needs_paint = needs_paint;
-}

src/compositor/tidy/tidy-texture-frame.h

@@ -1,84 +0,0 @@
-/* tidy-texture-frame.h: Expandible texture actor
- *
- * Copyright (C) 2007, 2008 OpenedHand Ltd
- * Copyright (C) 2009 Intel Corp.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef _HAVE_TIDY_TEXTURE_FRAME_H
-#define _HAVE_TIDY_TEXTURE_FRAME_H
-
-#include <clutter/clutter.h>
-
-G_BEGIN_DECLS
-
-#define TIDY_TYPE_TEXTURE_FRAME                 (tidy_texture_frame_get_type ())
-#define TIDY_TEXTURE_FRAME(obj)                 (G_TYPE_CHECK_INSTANCE_CAST ((obj), TIDY_TYPE_TEXTURE_FRAME, TidyTextureFrame))
-#define TIDY_TEXTURE_FRAME_CLASS(klass)         (G_TYPE_CHECK_CLASS_CAST ((klass), TIDY_TYPE_TEXTURE_FRAME, TidyTextureFrameClass))
-#define TIDY_IS_TEXTURE_FRAME(obj)              (G_TYPE_CHECK_INSTANCE_TYPE ((obj), TIDY_TYPE_TEXTURE_FRAME))
-#define TIDY_IS_TEXTURE_FRAME_CLASS(klass)      (G_TYPE_CHECK_CLASS_TYPE ((klass), TIDY_TYPE_TEXTURE_FRAME))
-#define TIDY_TEXTURE_FRAME_GET_CLASS(obj)       (G_TYPE_INSTANCE_GET_CLASS ((obj), TIDY_TYPE_TEXTURE_FRAME, TidyTextureFrameClass))
-
-typedef struct _TidyTextureFrame                TidyTextureFrame;
-typedef struct _TidyTextureFramePrivate         TidyTextureFramePrivate;
-typedef struct _TidyTextureFrameClass           TidyTextureFrameClass;
-
-struct _TidyTextureFrame
-{
-  /*< private >*/
-  ClutterActor parent_instance;
-  
-  TidyTextureFramePrivate    *priv;
-};
-
-struct _TidyTextureFrameClass
-{
-  ClutterActorClass parent_class;
-
-  /* padding for future expansion */
-  void (*_clutter_box_1) (void);
-  void (*_clutter_box_2) (void);
-  void (*_clutter_box_3) (void);
-  void (*_clutter_box_4) (void);
-};
-
-GType           tidy_texture_frame_get_type           (void) G_GNUC_CONST;
-ClutterActor *  tidy_texture_frame_new                (ClutterTexture   *texture,
-                                                       gfloat            top,
-                                                       gfloat            right,
-                                                       gfloat            bottom,
-                                                       gfloat            left);
-void            tidy_texture_frame_set_parent_texture (TidyTextureFrame *frame,
-                                                       ClutterTexture   *texture);
-ClutterTexture *tidy_texture_frame_get_parent_texture (TidyTextureFrame *frame);
-void            tidy_texture_frame_set_frame          (TidyTextureFrame *frame,
-                                                       gfloat            top,
-                                                       gfloat            right,
-                                                       gfloat            bottom,
-                                                       gfloat            left);
-void            tidy_texture_frame_get_frame          (TidyTextureFrame *frame,
-                                                       gfloat           *top,
-                                                       gfloat           *right,
-                                                       gfloat           *bottom,
-                                                       gfloat           *left);
-
-void            tidy_texture_frame_set_needs_paint    (TidyTextureFrame *frame,
-                                                       gboolean          needs_paint);
-
-G_END_DECLS
-
-#endif /* _HAVE_TIDY_TEXTURE_FRAME_H */

src/core/alttabhandler.c

@@ -1,138 +0,0 @@
-/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
-
-/* Metacity Alt-Tab abstraction */
-
-/*
- * Copyright (C) 2009 Red Hat, Inc.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
- */
-
-#include <config.h>
-#include "alttabhandlerdefault.h"
-#include "screen-private.h"
-
-static GType handler_type = G_TYPE_INVALID;
-
-GType meta_alt_tab_handler_default_get_type (void);
-
-void
-meta_alt_tab_handler_register (GType type)
-{
-  handler_type = type;
-}
-
-MetaAltTabHandler *
-meta_alt_tab_handler_new (MetaScreen *screen,
-                          gboolean    immediate)
-{
-  if (handler_type == G_TYPE_INVALID)
-    handler_type = meta_alt_tab_handler_default_get_type ();
-
-  return g_object_new (handler_type,
-                       "screen", screen,
-                       "immediate", immediate,
-                       NULL);
-}
-
-static void meta_alt_tab_handler_class_init (GObjectClass *object_class);
-
-GType
-meta_alt_tab_handler_get_type (void)
-{
-  static volatile gsize g_define_type_id__volatile = 0;
-
-  if (g_once_init_enter (&g_define_type_id__volatile))
-    {
-      const GTypeInfo type_info =
-      {
-        sizeof (MetaAltTabHandlerInterface), /* class_size */
-	NULL,           /* base_init */
-	NULL,		/* base_finalize */
-	(GClassInitFunc)meta_alt_tab_handler_class_init,
-	NULL,		/* class_finalize */
-	NULL,		/* class_data */
-	0,
-	0,              /* n_preallocs */
-	NULL
-      };
-      GType g_define_type_id =
-	g_type_register_static (G_TYPE_INTERFACE, "MetaAltTabHandler",
-				&type_info, 0);
-
-      g_type_interface_add_prerequisite (g_define_type_id, G_TYPE_OBJECT);
-
-      g_once_init_leave (&g_define_type_id__volatile, g_define_type_id);
-    }
-
-  return g_define_type_id__volatile;
-}
-
-static void
-meta_alt_tab_handler_class_init (GObjectClass *object_class)
-{
-  g_object_interface_install_property (object_class,
-                                       g_param_spec_object ("screen",
-                                                            "Screen",
-                                                            "MetaScreen this is the switcher for",
-                                                            META_TYPE_SCREEN,
-                                                            G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));
-  g_object_interface_install_property (object_class,
-                                       g_param_spec_boolean ("immediate",
-                                                             "Immediate mode",
-                                                             "Whether or not to select windows immediately",
-                                                             FALSE,
-                                                             G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));
-}
-
-void
-meta_alt_tab_handler_add_window (MetaAltTabHandler *handler,
-				 MetaWindow        *window)
-{
-  META_ALT_TAB_HANDLER_GET_INTERFACE (handler)->add_window (handler, window);
-}
-
-void
-meta_alt_tab_handler_show (MetaAltTabHandler *handler,
-                           MetaWindow        *initial_selection)
-{
-  META_ALT_TAB_HANDLER_GET_INTERFACE (handler)->show (handler,
-                                                      initial_selection);
-}
-
-void
-meta_alt_tab_handler_destroy (MetaAltTabHandler *handler)
-{
-  META_ALT_TAB_HANDLER_GET_INTERFACE (handler)->destroy (handler);
-}
-
-void
-meta_alt_tab_handler_forward (MetaAltTabHandler *handler)
-{
-  META_ALT_TAB_HANDLER_GET_INTERFACE (handler)->forward (handler);
-}
-
-void
-meta_alt_tab_handler_backward (MetaAltTabHandler *handler)
-{
-  META_ALT_TAB_HANDLER_GET_INTERFACE (handler)->backward (handler);
-}
-
-MetaWindow *
-meta_alt_tab_handler_get_selected (MetaAltTabHandler *handler)
-{
-  return META_ALT_TAB_HANDLER_GET_INTERFACE (handler)->get_selected (handler);
-}

src/core/alttabhandlerdefault.c

@@ -1,223 +0,0 @@
-/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
-
-/* Metacity Alt-Tab abstraction: default implementation */
-
-/*
- * Copyright (C) 2009 Red Hat, Inc.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
- */
-
-#include <config.h>
-#include "alttabhandlerdefault.h"
-#include "frame-private.h"
-#include "window-private.h"
-
-static void meta_alt_tab_handler_default_interface_init (MetaAltTabHandlerInterface *handler_iface);
-
-G_DEFINE_TYPE_WITH_CODE (MetaAltTabHandlerDefault, meta_alt_tab_handler_default, G_TYPE_OBJECT,
-                         G_IMPLEMENT_INTERFACE (META_TYPE_ALT_TAB_HANDLER,
-                                                meta_alt_tab_handler_default_interface_init))
-
-enum {
-  PROP_SCREEN = 1,
-  PROP_IMMEDIATE
-};
-
-static void
-meta_alt_tab_handler_default_init (MetaAltTabHandlerDefault *hd)
-{
-  hd->entries = g_array_new (FALSE, FALSE, sizeof (MetaTabEntry));
-}
-
-static void
-meta_alt_tab_handler_default_set_property (GObject      *object,
-                                           guint         prop_id,
-                                           const GValue *value,
-                                           GParamSpec   *pspec)
-{
-  MetaAltTabHandlerDefault *hd = META_ALT_TAB_HANDLER_DEFAULT (object);
-
-  switch (prop_id)
-    {
-    case PROP_SCREEN:
-      hd->screen = g_value_get_object (value);
-      break;
-    case PROP_IMMEDIATE:
-      hd->immediate_mode = g_value_get_boolean (value);
-      break;
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-    }
-}
-
-static void
-meta_alt_tab_handler_default_finalize (GObject *object)
-{
-  MetaAltTabHandlerDefault *hd = META_ALT_TAB_HANDLER_DEFAULT (object);
-
-  g_array_free (hd->entries, TRUE);
-
-  if (hd->tab_popup)
-    meta_ui_tab_popup_free (hd->tab_popup);
-
-  G_OBJECT_CLASS (meta_alt_tab_handler_default_parent_class)->finalize (object);
-}
-
-static void
-meta_alt_tab_handler_default_add_window (MetaAltTabHandler *handler,
-                                         MetaWindow        *window)
-{
-  MetaAltTabHandlerDefault *hd = META_ALT_TAB_HANDLER_DEFAULT (handler);
-  MetaTabEntry entry;
-  MetaRectangle r;
-
-  entry.key = (MetaTabEntryKey) window;
-  entry.title = window->title;
-  entry.icon = window->icon;
-  entry.blank = FALSE;
-  entry.hidden = !meta_window_showing_on_its_workspace (window);
-  entry.demands_attention = window->wm_state_demands_attention;
-
-  if (hd->immediate_mode || !entry.hidden ||
-      !meta_window_get_icon_geometry (window, &r))
-    meta_window_get_outer_rect (window, &r);
-  entry.rect = r;
-
-  /* Find inside of highlight rectangle to be used when window is
-   * outlined for tabbing.  This should be the size of the
-   * east/west frame, and the size of the south frame, on those
-   * sides.  On the top it should be the size of the south frame
-   * edge.
-   */
-#define OUTLINE_WIDTH 5
-  /* Top side */
-  if (!entry.hidden &&
-      window->frame && window->frame->bottom_height > 0 &&
-      window->frame->child_y >= window->frame->bottom_height)
-    entry.inner_rect.y = window->frame->bottom_height;
-  else
-    entry.inner_rect.y = OUTLINE_WIDTH;
-
-  /* Bottom side */
-  if (!entry.hidden &&
-      window->frame && window->frame->bottom_height != 0)
-    entry.inner_rect.height = r.height
-      - entry.inner_rect.y - window->frame->bottom_height;
-  else
-    entry.inner_rect.height = r.height
-      - entry.inner_rect.y - OUTLINE_WIDTH;
-
-  /* Left side */
-  if (!entry.hidden && window->frame && window->frame->child_x != 0)
-    entry.inner_rect.x = window->frame->child_x;
-  else
-    entry.inner_rect.x = OUTLINE_WIDTH;
-
-  /* Right side */
-  if (!entry.hidden &&
-      window->frame && window->frame->right_width != 0)
-    entry.inner_rect.width = r.width
-      - entry.inner_rect.x - window->frame->right_width;
-  else
-    entry.inner_rect.width = r.width
-      - entry.inner_rect.x - OUTLINE_WIDTH;
-
-  g_array_append_val (hd->entries, entry);
-}
-
-static void
-meta_alt_tab_handler_default_show (MetaAltTabHandler *handler,
-                                   MetaWindow        *initial_selection)
-{
-  MetaAltTabHandlerDefault *hd = META_ALT_TAB_HANDLER_DEFAULT (handler);
-
-  if (hd->tab_popup)
-    return;
-
-  hd->tab_popup = meta_ui_tab_popup_new ((MetaTabEntry *)hd->entries->data,
-                                         hd->screen->number,
-                                         hd->entries->len,
-                                         5, /* FIXME */
-                                         TRUE);
-  meta_ui_tab_popup_select (hd->tab_popup, (MetaTabEntryKey) initial_selection);
-  meta_ui_tab_popup_set_showing (hd->tab_popup, !hd->immediate_mode);
-}
-
-static void
-meta_alt_tab_handler_default_destroy (MetaAltTabHandler *handler)
-{
-  MetaAltTabHandlerDefault *hd = META_ALT_TAB_HANDLER_DEFAULT (handler);
-
-  if (hd->tab_popup)
-    {
-      meta_ui_tab_popup_free (hd->tab_popup);
-      hd->tab_popup = NULL;
-    }
-}
-
-static void
-meta_alt_tab_handler_default_forward (MetaAltTabHandler *handler)
-{
-  MetaAltTabHandlerDefault *hd = META_ALT_TAB_HANDLER_DEFAULT (handler);
-
-  if (hd->tab_popup)
-    meta_ui_tab_popup_forward (hd->tab_popup);
-}
-
-static void
-meta_alt_tab_handler_default_backward (MetaAltTabHandler *handler)
-{
-  MetaAltTabHandlerDefault *hd = META_ALT_TAB_HANDLER_DEFAULT (handler);
-
-  if (hd->tab_popup)
-    meta_ui_tab_popup_backward (hd->tab_popup);
-}
-
-static MetaWindow *
-meta_alt_tab_handler_default_get_selected (MetaAltTabHandler *handler)
-{
-  MetaAltTabHandlerDefault *hd = META_ALT_TAB_HANDLER_DEFAULT (handler);
-
-  if (hd->tab_popup)
-    return (MetaWindow *)meta_ui_tab_popup_get_selected (hd->tab_popup);
-  else
-    return NULL;
-}
-
-static void
-meta_alt_tab_handler_default_class_init (MetaAltTabHandlerDefaultClass *klass)
-{
-  GObjectClass *object_class = G_OBJECT_CLASS (klass);
-
-  object_class->set_property = meta_alt_tab_handler_default_set_property;
-  object_class->finalize     = meta_alt_tab_handler_default_finalize;
-
-  g_object_class_override_property (object_class, PROP_SCREEN, "screen");
-  g_object_class_override_property (object_class, PROP_IMMEDIATE, "immediate");
-}
-
-static void
-meta_alt_tab_handler_default_interface_init (MetaAltTabHandlerInterface *handler_iface)
-{
-  handler_iface->add_window   = meta_alt_tab_handler_default_add_window;
-  handler_iface->show         = meta_alt_tab_handler_default_show;
-  handler_iface->destroy      = meta_alt_tab_handler_default_destroy;
-  handler_iface->forward      = meta_alt_tab_handler_default_forward;
-  handler_iface->backward     = meta_alt_tab_handler_default_backward;
-  handler_iface->get_selected = meta_alt_tab_handler_default_get_selected;
-}

src/core/bell.c

@@ -52,6 +52,9 @@
 #include "bell.h"
 #include "screen-private.h"
 #include "prefs.h"
+#ifdef HAVE_LIBCANBERRA
+#include <canberra-gtk.h>
+#endif
 
 /**
  * Flashes one entire screen.  This is done by making a window the size of the
@@ -228,18 +231,18 @@ bell_flash_window_frame (MetaWindow *window)
  */
 static void
 bell_flash_frame (MetaDisplay *display, 
-		       XkbAnyEvent *xkb_ev)
+		  XkbAnyEvent *xkb_ev)
 {
   XkbBellNotifyEvent *xkb_bell_event = (XkbBellNotifyEvent *) xkb_ev;
   MetaWindow *window;
   
   g_assert (xkb_ev->xkb_type == XkbBellNotify);
   window = meta_display_lookup_x_window (display, xkb_bell_event->window);
-  if (!window && (display->focus_window) && (display->focus_window->frame))
+  if (!window && (display->focus_window))
     {
       window = display->focus_window;
     }
-  if (window)
+  if (window && window->frame)
     {
       bell_flash_window_frame (window);
     }
@@ -285,6 +288,48 @@ meta_bell_notify (MetaDisplay *display,
   /* flash something */
   if (meta_prefs_get_visual_bell ()) 
     bell_visual_notify (display, xkb_ev);
+
+#ifdef HAVE_LIBCANBERRA
+  if (meta_prefs_bell_is_audible ())
+    {
+      ca_proplist *p;
+      XkbBellNotifyEvent *xkb_bell_event = (XkbBellNotifyEvent*) xkb_ev;
+      MetaWindow *window;
+      int res;
+
+      ca_proplist_create (&p);
+      ca_proplist_sets (p, CA_PROP_EVENT_ID, "bell-window-system");
+      ca_proplist_sets (p, CA_PROP_EVENT_DESCRIPTION, _("Bell event"));
+      ca_proplist_sets (p, CA_PROP_CANBERRA_CACHE_CONTROL, "permanent");
+
+      window = meta_display_lookup_x_window (display, xkb_bell_event->window);
+      if (!window && (display->focus_window) && (display->focus_window->frame))
+        window = display->focus_window;
+
+      if (window)
+        {
+          ca_proplist_sets (p, CA_PROP_WINDOW_NAME, window->title);
+          ca_proplist_setf (p, CA_PROP_WINDOW_X11_XID, "%lu", (unsigned long)window->xwindow);
+          ca_proplist_sets (p, CA_PROP_APPLICATION_NAME, window->res_name);
+          ca_proplist_setf (p, CA_PROP_APPLICATION_PROCESS_ID, "%d", window->net_wm_pid);
+        }
+
+      /* First, we try to play a real sound ... */
+      res = ca_context_play_full (ca_gtk_context_get (), 1, p, NULL, NULL);
+
+      ca_proplist_destroy (p);
+
+      if (res != CA_SUCCESS && res != CA_ERROR_DISABLED)
+        {
+          /* ...and in case that failed we use the classic X11 bell. */
+          XkbForceDeviceBell (display->xdisplay,
+                              xkb_bell_event->device,
+                              xkb_bell_event->bell_class,
+                              xkb_bell_event->bell_id,
+                              xkb_bell_event->percent);
+        }
+    }
+#endif /* HAVE_LIBCANBERRA */
 }
 #endif /* HAVE_XKB */
 
@@ -292,11 +337,19 @@ void
 meta_bell_set_audible (MetaDisplay *display, gboolean audible)
 {
 #ifdef HAVE_XKB
+#ifdef HAVE_LIBCANBERRA
+  /* When we are playing sounds using libcanberra support, we handle the
+   * bell whether its an audible bell or a visible bell */
+  gboolean enable_system_bell = FALSE;
+#else
+  gboolean enable_system_bell = audible;
+#endif /* HAVE_LIBCANBERRA */
+
   XkbChangeEnabledControls (display->xdisplay,
-			    XkbUseCoreKbd,
-			    XkbAudibleBellMask,
-			    audible ? XkbAudibleBellMask : 0);
-#endif  
+                            XkbUseCoreKbd,
+                            XkbAudibleBellMask,
+                            enable_system_bell ? XkbAudibleBellMask : 0);
+#endif /* HAVE_XKB */
 }
 
 gboolean
@@ -323,11 +376,7 @@ meta_bell_init (MetaDisplay *display)
 		       XkbUseCoreKbd,
 		       XkbBellNotifyMask,
 		       XkbBellNotifyMask);
-      XkbChangeEnabledControls (display->xdisplay,
-				XkbUseCoreKbd,
-				XkbAudibleBellMask,
-				meta_prefs_bell_is_audible () 
-				? XkbAudibleBellMask : 0);
+      meta_bell_set_audible (display, meta_prefs_bell_is_audible ());
       if (visual_bell_auto_reset) {
 	XkbSetAutoResetControls (display->xdisplay,
 				 XkbAudibleBellMask,

src/core/boxes-private.h

@@ -0,0 +1,220 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/* Simple box operations */
+
+/* 
+ * Copyright (C) 2005, 2006 Elijah Newren
+ * 
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+#ifndef META_BOXES_PRIVATE_H
+#define META_BOXES_PRIVATE_H
+
+#include <glib-object.h>
+#include "common.h"
+#include "boxes.h"
+
+#define BOX_LEFT(box)    ((box).x)                /* Leftmost pixel of rect */
+#define BOX_RIGHT(box)   ((box).x + (box).width)  /* One pixel past right   */
+#define BOX_TOP(box)     ((box).y)                /* Topmost pixel of rect  */
+#define BOX_BOTTOM(box)  ((box).y + (box).height) /* One pixel past bottom  */
+
+typedef enum
+{
+  FIXED_DIRECTION_NONE = 0,
+  FIXED_DIRECTION_X    = 1 << 0,
+  FIXED_DIRECTION_Y    = 1 << 1,
+} FixedDirections;
+
+/* Output functions -- note that the output buffer had better be big enough:
+ *   rect_to_string:   RECT_LENGTH
+ *   region_to_string: (RECT_LENGTH+strlen(separator_string)) *
+ *                     g_list_length (region)
+ *   edge_to_string:   EDGE_LENGTH
+ *   edge_list_to_...: (EDGE_LENGTH+strlen(separator_string)) * 
+ *                     g_list_length (edge_list)
+ */
+#define RECT_LENGTH 27
+#define EDGE_LENGTH 37
+char* meta_rectangle_to_string        (const MetaRectangle *rect,
+                                       char                *output);
+char* meta_rectangle_region_to_string (GList               *region,
+                                       const char          *separator_string,
+                                       char                *output);
+char* meta_rectangle_edge_to_string   (const MetaEdge      *edge,
+                                       char                *output);
+char* meta_rectangle_edge_list_to_string (
+                                       GList               *edge_list,
+                                       const char          *separator_string,
+                                       char                *output);
+
+/* Resize old_rect to the given new_width and new_height, but store the
+ * result in rect.  NOTE THAT THIS IS RESIZE ONLY SO IT CANNOT BE USED FOR
+ * A MOVERESIZE OPERATION (that simplies the routine a little bit as it
+ * means there's no difference between NorthWestGravity and StaticGravity.
+ * Also, I lied a little bit--technically, you could use it in a MoveResize
+ * operation if you muck with old_rect just right).
+ */
+void meta_rectangle_resize_with_gravity (const MetaRectangle *old_rect,
+                                         MetaRectangle       *rect,
+                                         int                  gravity,
+                                         int                  new_width,
+                                         int                  new_height);
+
+/* find a list of rectangles with the property that a window is contained
+ * in the given region if and only if it is contained in one of the
+ * rectangles in the list.
+ *
+ * In this case, the region is given by taking basic_rect, removing from
+ * it the intersections with all the rectangles in the all_struts list,
+ * then expanding all the rectangles in the resulting list by the given
+ * amounts on each side.
+ *
+ * See boxes.c for more details.
+ */
+GList*   meta_rectangle_get_minimal_spanning_set_for_region (
+                                         const MetaRectangle *basic_rect,
+                                         const GSList        *all_struts);
+
+/* Expand all rectangles in region by the given amount on each side */
+GList*   meta_rectangle_expand_region   (GList               *region,
+                                         const int            left_expand,
+                                         const int            right_expand,
+                                         const int            top_expand,
+                                         const int            bottom_expand);
+/* Same as for meta_rectangle_expand_region except that rectangles not at
+ * least min_x or min_y in size are not expanded in that direction
+ */
+GList*   meta_rectangle_expand_region_conditionally (
+                                         GList                *region,
+                                         const int            left_expand,
+                                         const int            right_expand,
+                                         const int            top_expand,
+                                         const int            bottom_expand,
+                                         const int            min_x,
+                                         const int            min_y);
+
+/* Expand rect in direction to the size of expand_to, and then clip out any
+ * overlapping struts oriented orthognal to the expansion direction.  (Think
+ * horizontal or vertical maximization)
+ */
+void     meta_rectangle_expand_to_avoiding_struts (
+                                         MetaRectangle       *rect,
+                                         const MetaRectangle *expand_to,
+                                         const MetaDirection  direction,
+                                         const GSList        *all_struts);
+
+/* Free the list created by
+ *   meta_rectangle_get_minimal_spanning_set_for_region()
+ * or
+ *   meta_rectangle_find_onscreen_edges ()
+ * or
+ *   meta_rectangle_find_nonintersected_monitor_edges()
+ */
+void     meta_rectangle_free_list_and_elements (GList *filled_list);
+
+/* could_fit_in_region determines whether one of the spanning_rects is
+ * big enough to contain rect.  contained_in_region checks whether one
+ * actually contains it.
+ */
+gboolean meta_rectangle_could_fit_in_region (
+                                         const GList         *spanning_rects,
+                                         const MetaRectangle *rect);
+gboolean meta_rectangle_contained_in_region (
+                                         const GList         *spanning_rects,
+                                         const MetaRectangle *rect);
+gboolean meta_rectangle_overlaps_with_region (
+                                         const GList         *spanning_rects,
+                                         const MetaRectangle *rect);
+
+/* Make the rectangle small enough to fit into one of the spanning_rects,
+ * but make it no smaller than min_size.
+ */
+void     meta_rectangle_clamp_to_fit_into_region (
+                                         const GList         *spanning_rects,
+                                         FixedDirections      fixed_directions,
+                                         MetaRectangle       *rect,
+                                         const MetaRectangle *min_size);
+
+/* Clip the rectangle so that it fits into one of the spanning_rects, assuming
+ * it overlaps with at least one of them
+ */
+void     meta_rectangle_clip_to_region  (const GList         *spanning_rects,
+                                         FixedDirections      fixed_directions,
+                                         MetaRectangle       *rect);
+
+/* Shove the rectangle into one of the spanning_rects, assuming it fits in
+ * one of them.
+ */
+void     meta_rectangle_shove_into_region(
+                                         const GList         *spanning_rects,
+                                         FixedDirections      fixed_directions,
+                                         MetaRectangle       *rect);
+
+/* Finds the point on the line connecting (x1,y1) to (x2,y2) which is closest
+ * to (px, py).  Useful for finding an optimal rectangle size when given a
+ * range between two sizes that are all candidates.
+ */
+void meta_rectangle_find_linepoint_closest_to_point (double x1,    double y1,
+                                                     double x2,    double y2,
+                                                     double px,    double py,
+                                                     double *valx, double *valy);
+
+/***************************************************************************/
+/*                                                                         */
+/* Switching gears to code for edges instead of just rectangles            */
+/*                                                                         */
+/***************************************************************************/
+
+/* Return whether an edge overlaps or is adjacent to the rectangle in the
+ * nonzero-width dimension of the edge.
+ */
+gboolean meta_rectangle_edge_aligns (const MetaRectangle *rect, 
+                                     const MetaEdge      *edge);
+
+/* Compare two edges, so that sorting functions can put a list of edges in
+ * canonical order.
+ */
+gint   meta_rectangle_edge_cmp (gconstpointer a, gconstpointer b);
+
+/* Compare two edges, so that sorting functions can put a list of edges in
+ * order.  This function doesn't separate left edges first, then right edges,
+ * etc., but rather compares only upon location.
+ */
+gint   meta_rectangle_edge_cmp_ignore_type (gconstpointer a, gconstpointer b);
+
+/* Removes an parts of edges in the given list that intersect any box in the
+ * given rectangle list.  Returns the result.
+ */
+GList* meta_rectangle_remove_intersections_with_boxes_from_edges (
+                                           GList *edges,
+                                           const GSList *rectangles);
+
+/* Finds all the edges of an onscreen region, returning a GList* of
+ * MetaEdgeRect's.
+ */
+GList* meta_rectangle_find_onscreen_edges (const MetaRectangle *basic_rect,
+                                           const GSList        *all_struts);
+
+/* Finds edges between adjacent monitors which are not covered by the given
+ * struts.
+ */
+GList* meta_rectangle_find_nonintersected_monitor_edges (
+                                           const GList         *monitor_rects,
+                                           const GSList        *all_struts);
+
+#endif /* META_BOXES_PRIVATE_H */

src/core/boxes.c

@@ -26,10 +26,39 @@
  * 02111-1307, USA.
  */
 
-#include "boxes.h"
+#include "boxes-private.h"
 #include "util.h"
 #include <X11/Xutil.h>  /* Just for the definition of the various gravities */
 
+/* It would make sense to use GSlice here, but until we clean up the
+ * rest of this file and the internal API to use these functions, we
+ * leave it using g_malloc()/g_free() for consistency.
+ */
+
+MetaRectangle *
+meta_rectangle_copy (const MetaRectangle *rect)
+{
+  return g_memdup (rect, sizeof (MetaRectangle));
+}
+
+void
+meta_rectangle_free (MetaRectangle *rect)
+{
+  g_free (rect);
+}
+
+GType
+meta_rectangle_get_type (void)
+{
+  static GType type_id = 0;
+
+  if (!type_id)
+    type_id = g_boxed_type_register_static (g_intern_static_string ("MetaRectangle"),
+					    (GBoxedCopyFunc) meta_rectangle_copy,
+					    (GBoxedFreeFunc) meta_rectangle_free);
+  return type_id;
+}
+
 char*
 meta_rectangle_to_string (const MetaRectangle *rect,
                           char                *output)
@@ -500,7 +529,12 @@ compare_rect_areas (gconstpointer a, gconstpointer b)
   return b_area - a_area; /* positive ret value denotes b > a, ... */
 }
 
-/* This function is trying to find a "minimal spanning set (of rectangles)"
+/**
+ * meta_rectangle_get_minimal_spanning_set_for_region:
+ * @basic_rect: Input rectangle
+ * @all_struts: (element-type Meta.Rectangle): List of struts
+ *
+ * This function is trying to find a "minimal spanning set (of rectangles)"
  * for a given region.
  *
  * The region is given by taking basic_rect, then removing the areas
@@ -513,10 +547,7 @@ compare_rect_areas (gconstpointer a, gconstpointer b)
  * the region if and only if it is contained within at least one of the
  * rectangles.
  *
- * The GList* returned will be a list of (allocated) MetaRectangles.
- * The list will need to be freed by calling
- * meta_rectangle_free_spanning_set() on it (or by manually
- * implementing that function...)
+ * Returns: (transfer full) (element-type Meta.Rectangle): Minimal spanning set
  */
 GList*
 meta_rectangle_get_minimal_spanning_set_for_region (
@@ -535,7 +566,7 @@ meta_rectangle_get_minimal_spanning_set_for_region (
    * enough to make this worth bothering.  Further, it is only called from
    * workspace.c:ensure_work_areas_validated (at least as of the time of
    * writing this comment), which in turn should only be called if the
-   * strut list changes or the screen or xinerama size changes.  If it ever
+   * strut list changes or the screen or monitor size changes.  If it ever
    * does show up on profiles (most likely because people start using
    * ridiculously huge numbers of partial struts), possible optimizations
    * include:
@@ -649,6 +680,10 @@ meta_rectangle_get_minimal_spanning_set_for_region (
   return ret;
 }
 
+/**
+ * meta_rectangle_expand_region: (skip)
+ *
+ */
 GList*
 meta_rectangle_expand_region (GList     *region,
                               const int  left_expand,
@@ -665,6 +700,10 @@ meta_rectangle_expand_region (GList     *region,
                                                      0);
 }
 
+/**
+ * meta_rectangle_expand_region_conditionally: (skip)
+ *
+ */
 GList*
 meta_rectangle_expand_region_conditionally (GList     *region,
                                             const int  left_expand,
@@ -1642,7 +1681,10 @@ fix_up_edges (MetaRectangle *rect,         MetaEdge *edge,
     }
 }
 
-/* This function removes intersections of edges with the rectangles from the
+/**
+ * meta_rectangle_remove_intersections_with_boxes_from_edges: (skip)
+ *
+ * This function removes intersections of edges with the rectangles from the
  * list of edges.
  */
 GList*
@@ -1708,7 +1750,11 @@ meta_rectangle_remove_intersections_with_boxes_from_edges (
   return edges;
 }
 
-/* This function is trying to find all the edges of an onscreen region. */
+/**
+ * meta_rectangle_find_onscreen_edges: (skip)
+ *
+ * This function is trying to find all the edges of an onscreen region.
+ */
 GList*
 meta_rectangle_find_onscreen_edges (const MetaRectangle *basic_rect,
                                     const GSList        *all_struts)
@@ -1791,15 +1837,19 @@ meta_rectangle_find_onscreen_edges (const MetaRectangle *basic_rect,
   return ret;
 }
 
+/**
+ * meta_rectangle_find_nonintersected_monitor_edges: (skip)
+ *
+ */
 GList*
-meta_rectangle_find_nonintersected_xinerama_edges (
-                                    const GList         *xinerama_rects,
+meta_rectangle_find_nonintersected_monitor_edges (
+                                    const GList         *monitor_rects,
                                     const GSList        *all_struts)
 {
   /* This function cannot easily be merged with
    * meta_rectangle_find_onscreen_edges() because real screen edges
    * and strut edges both are of the type "there ain't anything
-   * immediately on the other side"; xinerama edges are different.
+   * immediately on the other side"; monitor edges are different.
    */
   GList *ret;
   const GList  *cur;
@@ -1808,14 +1858,14 @@ meta_rectangle_find_nonintersected_xinerama_edges (
   /* Initialize the return list to be empty */
   ret = NULL;
 
-  /* start of ret with all the edges of xineramas that are adjacent to
-   * another xinerama.
+  /* start of ret with all the edges of monitors that are adjacent to
+   * another monitor.
    */
-  cur = xinerama_rects;
+  cur = monitor_rects;
   while (cur)
     {
       MetaRectangle *cur_rect = cur->data;
-      const GList *compare = xinerama_rects;
+      const GList *compare = monitor_rects;
       while (compare)
         {
           MetaRectangle *compare_rect = compare->data;
@@ -1849,15 +1899,15 @@ meta_rectangle_find_nonintersected_xinerama_edges (
               /* If the rectangles really are adjacent */
               if (x != INT_MIN)
                 {
-                  /* We need a left edge for the xinerama on the right, and
-                   * a right edge for the xinerama on the left.  Just fill
+                  /* We need a left edge for the monitor on the right, and
+                   * a right edge for the monitor on the left.  Just fill
                    * up the edges and stick 'em on the list.
                    */
                   MetaEdge *new_edge  = g_new (MetaEdge, 1);
 
                   new_edge->rect = meta_rect (x, y, width, height);
                   new_edge->side_type = side_type;
-                  new_edge->edge_type = META_EDGE_XINERAMA;
+                  new_edge->edge_type = META_EDGE_MONITOR;
 
                   ret = g_list_prepend (ret, new_edge);
                 }
@@ -1892,15 +1942,15 @@ meta_rectangle_find_nonintersected_xinerama_edges (
               /* If the rectangles really are adjacent */
               if (y != INT_MIN)
                 {
-                  /* We need a top edge for the xinerama on the bottom, and
-                   * a bottom edge for the xinerama on the top.  Just fill
+                  /* We need a top edge for the monitor on the bottom, and
+                   * a bottom edge for the monitor on the top.  Just fill
                    * up the edges and stick 'em on the list.
                    */
                   MetaEdge *new_edge = g_new (MetaEdge, 1);
 
                   new_edge->rect = meta_rect (x, y, width, height);
                   new_edge->side_type = side_type;
-                  new_edge->edge_type = META_EDGE_XINERAMA;
+                  new_edge->edge_type = META_EDGE_MONITOR;
 
                   ret = g_list_prepend (ret, new_edge);
                 }

src/core/constraints.c

@@ -24,9 +24,11 @@
  */
 
 #include <config.h>
+#include "boxes-private.h"
 #include "constraints.h"
 #include "workspace-private.h"
 #include "place.h"
+#include "prefs.h"
 
 #include <stdlib.h>
 #include <math.h>
@@ -93,10 +95,11 @@ typedef enum
 {
   PRIORITY_MINIMUM = 0, /* Dummy value used for loop start = min(all priorities) */
   PRIORITY_ASPECT_RATIO = 0,
-  PRIORITY_ENTIRELY_VISIBLE_ON_SINGLE_XINERAMA = 0,
+  PRIORITY_ENTIRELY_VISIBLE_ON_SINGLE_MONITOR = 0,
   PRIORITY_ENTIRELY_VISIBLE_ON_WORKAREA = 1,
   PRIORITY_SIZE_HINTS_INCREMENTS = 1,
   PRIORITY_MAXIMIZATION = 2,
+  PRIORITY_TILING = 2,
   PRIORITY_FULLSCREEN = 2,
   PRIORITY_SIZE_HINTS_LIMITS = 3,
   PRIORITY_TITLEBAR_VISIBLE = 4,
@@ -127,23 +130,30 @@ typedef struct
   int                  resize_gravity;
   FixedDirections      fixed_directions;
 
-  /* work_area_xinerama - current xinerama region minus struts
-   * entire_xinerama    - current xienrama, including strut regions
+  /* work_area_monitor - current monitor region minus struts
+   * entire_monitor    - current monitor, including strut regions
    */
-  MetaRectangle        work_area_xinerama;
-  MetaRectangle        entire_xinerama;
+  MetaRectangle        work_area_monitor;
+  MetaRectangle        entire_monitor;
 
   /* Spanning rectangles for the non-covered (by struts) region of the
-   * screen and also for just the current xinerama
+   * screen and also for just the current monitor
    */
   GList  *usable_screen_region;
-  GList  *usable_xinerama_region;
+  GList  *usable_monitor_region;
 } ConstraintInfo;
-
+static gboolean constrain_modal_dialog       (MetaWindow         *window,
+                                              ConstraintInfo     *info,
+                                              ConstraintPriority  priority,
+                                              gboolean            check_only);
 static gboolean constrain_maximization       (MetaWindow         *window,
                                               ConstraintInfo     *info,
                                               ConstraintPriority  priority,
                                               gboolean            check_only);
+static gboolean constrain_tiling             (MetaWindow         *window,
+                                              ConstraintInfo     *info,
+                                              ConstraintPriority  priority,
+                                              gboolean            check_only);
 static gboolean constrain_fullscreen         (MetaWindow         *window,
                                               ConstraintInfo     *info,
                                               ConstraintPriority  priority,
@@ -160,7 +170,7 @@ static gboolean constrain_aspect_ratio       (MetaWindow         *window,
                                               ConstraintInfo     *info,
                                               ConstraintPriority  priority,
                                               gboolean            check_only);
-static gboolean constrain_to_single_xinerama (MetaWindow         *window,
+static gboolean constrain_to_single_monitor  (MetaWindow         *window,
                                               ConstraintInfo     *info,
                                               ConstraintPriority  priority,
                                               gboolean            check_only);
@@ -209,12 +219,14 @@ typedef struct {
 } Constraint;
 
 static const Constraint all_constraints[] = {
+  {constrain_modal_dialog,       "constrain_modal_dialog"},
   {constrain_maximization,       "constrain_maximization"},
+  {constrain_tiling,             "constrain_tiling"},
   {constrain_fullscreen,         "constrain_fullscreen"},
   {constrain_size_increments,    "constrain_size_increments"},
   {constrain_size_limits,        "constrain_size_limits"},
   {constrain_aspect_ratio,       "constrain_aspect_ratio"},
-  {constrain_to_single_xinerama, "constrain_to_single_xinerama"},
+  {constrain_to_single_monitor,  "constrain_to_single_monitor"},
   {constrain_fully_onscreen,     "constrain_fully_onscreen"},
   {constrain_titlebar_visible,   "constrain_titlebar_visible"},
   {constrain_partially_onscreen, "constrain_partially_onscreen"},
@@ -311,7 +323,7 @@ meta_window_constrain (MetaWindow          *window,
   *new = info.current;
 
   /* We may need to update window->require_fully_onscreen,
-   * window->require_on_single_xinerama, and perhaps other quantities
+   * window->require_on_single_monitor, and perhaps other quantities
    * if this was a user move or user move-and-resize operation.
    */
   update_onscreen_requirements (window, &info);
@@ -333,7 +345,7 @@ setup_constraint_info (ConstraintInfo      *info,
                        const MetaRectangle *orig,
                        MetaRectangle       *new)
 {
-  const MetaXineramaScreenInfo *xinerama_info;
+  const MetaMonitorInfo *monitor_info;
   MetaWorkspace *cur_workspace;
 
   info->orig    = *orig;
@@ -387,15 +399,15 @@ setup_constraint_info (ConstraintInfo      *info,
   if (!info->is_user_action)
     info->fixed_directions = FIXED_DIRECTION_NONE;
 
-  xinerama_info =
-    meta_screen_get_xinerama_for_rect (window->screen, &info->current);
-  meta_window_get_work_area_for_xinerama (window,
-                                          xinerama_info->number,
-                                          &info->work_area_xinerama);
+  monitor_info =
+    meta_screen_get_monitor_for_rect (window->screen, &info->current);
+  meta_window_get_work_area_for_monitor (window,
+                                         monitor_info->number,
+                                         &info->work_area_monitor);
 
   if (!window->fullscreen || window->fullscreen_monitors[0] == -1)
     {
-      info->entire_xinerama = xinerama_info->rect;
+      info->entire_monitor = monitor_info->rect;
     }
   else
     {
@@ -403,28 +415,29 @@ setup_constraint_info (ConstraintInfo      *info,
       long monitor;
 
       monitor = window->fullscreen_monitors[i];
-      info->entire_xinerama =
-        window->screen->xinerama_infos[monitor].rect;
+      info->entire_monitor =
+        window->screen->monitor_infos[monitor].rect;
       for (i = 1; i <= 3; i++)
         {
           monitor = window->fullscreen_monitors[i];
-          meta_rectangle_union (&info->entire_xinerama,
-                                &window->screen->xinerama_infos[monitor].rect,
-                                &info->entire_xinerama);
+          meta_rectangle_union (&info->entire_monitor,
+                                &window->screen->monitor_infos[monitor].rect,
+                                &info->entire_monitor);
         }
     }
 
   cur_workspace = window->screen->active_workspace;
   info->usable_screen_region   = 
     meta_workspace_get_onscreen_region (cur_workspace);
-  info->usable_xinerama_region = 
-    meta_workspace_get_onxinerama_region (cur_workspace, 
-                                          xinerama_info->number);
+  info->usable_monitor_region = 
+    meta_workspace_get_onmonitor_region (cur_workspace, 
+                                         monitor_info->number);
 
   /* Workaround braindead legacy apps that don't know how to
    * fullscreen themselves properly.
    */
-  if (meta_rectangle_equal (new, &xinerama_info->rect) &&
+  if (meta_prefs_get_force_fullscreen() &&
+      meta_rectangle_equal (new, &monitor_info->rect) &&
       window->has_fullscreen_func &&
       !window->fullscreen)
     {
@@ -448,8 +461,8 @@ setup_constraint_info (ConstraintInfo      *info,
               "  is_user_action  : %s\n"
               "  resize_gravity  : %s\n"
               "  fixed_directions: %s\n"
-              "  work_area_xinerama: %d,%d +%d,%d\n"
-              "  entire_xinerama   : %d,%d +%d,%d\n",
+              "  work_area_monitor: %d,%d +%d,%d\n"
+              "  entire_monitor   : %d,%d +%d,%d\n",
               info->orig.x, info->orig.y, info->orig.width, info->orig.height,
               info->current.x, info->current.y, 
                 info->current.width, info->current.height,
@@ -465,11 +478,11 @@ setup_constraint_info (ConstraintInfo      *info,
                 (info->fixed_directions == FIXED_DIRECTION_X) ? "X fixed" :
                 (info->fixed_directions == FIXED_DIRECTION_Y) ? "Y fixed" :
                 "Freakin' Invalid Stupid",
-              info->work_area_xinerama.x, info->work_area_xinerama.y,
-                info->work_area_xinerama.width, 
-                info->work_area_xinerama.height,
-              info->entire_xinerama.x, info->entire_xinerama.y,
-                info->entire_xinerama.width, info->entire_xinerama.height);
+              info->work_area_monitor.x, info->work_area_monitor.y,
+                info->work_area_monitor.width, 
+                info->work_area_monitor.height,
+              info->entire_monitor.x, info->entire_monitor.y,
+                info->entire_monitor.width, info->entire_monitor.height);
 }
 
 static void
@@ -493,25 +506,25 @@ place_window_if_needed(MetaWindow     *window,
     {
       MetaRectangle placed_rect = info->orig;
       MetaWorkspace *cur_workspace;
-      const MetaXineramaScreenInfo *xinerama_info;
+      const MetaMonitorInfo *monitor_info;
 
       meta_window_place (window, info->fgeom, info->orig.x, info->orig.y,
                          &placed_rect.x, &placed_rect.y);
       did_placement = TRUE;
 
-      /* placing the window may have changed the xinerama.  Find the
-       * new xinerama and update the ConstraintInfo
+      /* placing the window may have changed the monitor.  Find the
+       * new monitor and update the ConstraintInfo
        */
-      xinerama_info =
-        meta_screen_get_xinerama_for_rect (window->screen, &placed_rect);
-      info->entire_xinerama = xinerama_info->rect;
-      meta_window_get_work_area_for_xinerama (window,
-                                              xinerama_info->number,
-                                              &info->work_area_xinerama);
+      monitor_info =
+        meta_screen_get_monitor_for_rect (window->screen, &placed_rect);
+      info->entire_monitor = monitor_info->rect;
+      meta_window_get_work_area_for_monitor (window,
+                                             monitor_info->number,
+                                             &info->work_area_monitor);
       cur_workspace = window->screen->active_workspace;
-      info->usable_xinerama_region = 
-        meta_workspace_get_onxinerama_region (cur_workspace, 
-                                              xinerama_info->number);
+      info->usable_monitor_region = 
+        meta_workspace_get_onmonitor_region (cur_workspace, 
+                                             monitor_info->number);
 
 
       info->current.x = placed_rect.x;
@@ -526,22 +539,23 @@ place_window_if_needed(MetaWindow     *window,
   if (window->placed || did_placement)
     {
       if (window->maximize_horizontally_after_placement ||
-          window->maximize_vertically_after_placement)
+          window->maximize_vertically_after_placement   ||
+          window->fullscreen_after_placement)
         {
-          /* define a sane saved_rect so that the user can unmaximize to
-           * something reasonable.
+          /* define a sane saved_rect so that the user can unmaximize or
+           * make unfullscreen to something reasonable.
            */
-          if (info->current.width >= info->work_area_xinerama.width)
+          if (info->current.width >= info->work_area_monitor.width)
             {
-              info->current.width = .75 * info->work_area_xinerama.width;
-              info->current.x = info->work_area_xinerama.x +
-                       .125 * info->work_area_xinerama.width;
+              info->current.width = .75 * info->work_area_monitor.width;
+              info->current.x = info->work_area_monitor.x +
+                       .125 * info->work_area_monitor.width;
             }
-          if (info->current.height >= info->work_area_xinerama.height)
+          if (info->current.height >= info->work_area_monitor.height)
             {
-              info->current.height = .75 * info->work_area_xinerama.height;
-              info->current.y = info->work_area_xinerama.y +
-                       .083 * info->work_area_xinerama.height;
+              info->current.height = .75 * info->work_area_monitor.height;
+              info->current.y = info->work_area_monitor.y +
+                       .083 * info->work_area_monitor.height;
             }
 
           if (window->maximize_horizontally_after_placement ||
@@ -556,6 +570,15 @@ place_window_if_needed(MetaWindow     *window,
           if (window->frame && !window->fullscreen)
             meta_frame_calc_geometry (window->frame, info->fgeom);
 
+          if (window->fullscreen_after_placement)
+            {
+              window->saved_rect = info->current;
+              window->fullscreen = TRUE;
+              window->fullscreen_after_placement = FALSE;
+
+              g_object_notify (G_OBJECT (window), "fullscreen");
+            }
+
           window->maximize_horizontally_after_placement = FALSE;
           window->maximize_vertically_after_placement = FALSE;
         }
@@ -589,7 +612,7 @@ update_onscreen_requirements (MetaWindow     *window,
     return;
 
   /* USABILITY NOTE: Naturally, I only want the require_fully_onscreen,
-   * require_on_single_xinerama, and require_titlebar_visible flags to
+   * require_on_single_monitor, and require_titlebar_visible flags to
    * *become false* due to user interactions (which is allowed since
    * certain constraints are ignored for user interactions regardless of
    * the setting of these flags).  However, whether to make these flags
@@ -603,7 +626,7 @@ update_onscreen_requirements (MetaWindow     *window,
    * problematic case but this may need to be revisited.
    */
 
-  /* The require onscreen/on-single-xinerama and titlebar_visible
+  /* The require onscreen/on-single-monitor and titlebar_visible
    * stuff is relative to the outer window, not the inner
    */
   extend_by_frame (&info->current, info->fgeom);
@@ -622,17 +645,17 @@ update_onscreen_requirements (MetaWindow     *window,
                 window->require_fully_onscreen ? "TRUE" : "FALSE");
 
   /* Update whether we want future constraint runs to require the
-   * window to be on a single xinerama.
+   * window to be on a single monitor.
    */
-  old = window->require_on_single_xinerama;
-  window->require_on_single_xinerama =
-    meta_rectangle_contained_in_region (info->usable_xinerama_region,
+  old = window->require_on_single_monitor;
+  window->require_on_single_monitor =
+    meta_rectangle_contained_in_region (info->usable_monitor_region,
                                         &info->current);
-  if (old ^ window->require_on_single_xinerama)
+  if (old ^ window->require_on_single_monitor)
     meta_topic (META_DEBUG_GEOMETRY,
-                "require_on_single_xinerama for %s toggled to %s\n",
+                "require_on_single_monitor for %s toggled to %s\n",
                 window->desc, 
-                window->require_on_single_xinerama ? "TRUE" : "FALSE");
+                window->require_on_single_monitor ? "TRUE" : "FALSE");
 
   /* Update whether we want future constraint runs to require the
    * titlebar to be visible.
@@ -714,6 +737,48 @@ get_size_limits (const MetaWindow        *window,
     }
 }
 
+static gboolean
+constrain_modal_dialog (MetaWindow         *window,
+                        ConstraintInfo     *info,
+                        ConstraintPriority  priority,
+                        gboolean            check_only)
+{
+  int x, y;
+  MetaWindow *parent = meta_window_get_transient_for (window);
+  gboolean constraint_already_satisfied;
+
+  if (!meta_prefs_get_attach_modal_dialogs ())
+    return TRUE;
+  if (window->type != META_WINDOW_MODAL_DIALOG || !parent || parent == window)
+    return TRUE;
+
+  x = parent->rect.x + (parent->rect.width / 2  - info->current.width / 2);
+  y = 0;
+  if (parent->frame)
+    {
+      MetaFrameGeometry fgeom;
+
+      x += parent->frame->rect.x;
+      y += parent->frame->rect.y;
+
+      meta_frame_calc_geometry (parent->frame, &fgeom);
+      y += fgeom.top_height;
+
+      y += info->fgeom->top_height;
+    }
+  else
+    y = parent->rect.y + info->fgeom->top_height;
+
+  constraint_already_satisfied = (x == info->current.x) && (y == info->current.y);
+
+  if (check_only || constraint_already_satisfied)
+    return constraint_already_satisfied;
+
+  info->current.y = y;
+  info->current.x = x;
+  return TRUE;
+}
+
 static gboolean
 constrain_maximization (MetaWindow         *window,
                         ConstraintInfo     *info,
@@ -730,12 +795,13 @@ constrain_maximization (MetaWindow         *window,
     return TRUE;
 
   /* Determine whether constraint applies; exit if it doesn't */
-  if (!window->maximized_horizontally && !window->maximized_vertically)
+  if ((!window->maximized_horizontally && !window->maximized_vertically) ||
+      META_WINDOW_TILED (window))
     return TRUE;
 
   /* Calculate target_size = maximized size of (window + frame) */
   if (window->maximized_horizontally && window->maximized_vertically)
-    target_size = info->work_area_xinerama;
+    target_size = info->work_area_monitor;
   else
     {
       /* Amount of maximization possible in a single direction depends
@@ -757,7 +823,7 @@ constrain_maximization (MetaWindow         *window,
       target_size = info->current;
       extend_by_frame (&target_size, info->fgeom);
       meta_rectangle_expand_to_avoiding_struts (&target_size,
-                                                &info->entire_xinerama,
+                                                &info->entire_monitor,
                                                 direction,
                                                 active_workspace_struts);
    }
@@ -798,13 +864,66 @@ constrain_maximization (MetaWindow         *window,
   return TRUE;
 }
 
+static gboolean
+constrain_tiling (MetaWindow         *window,
+                  ConstraintInfo     *info,
+                  ConstraintPriority  priority,
+                  gboolean            check_only)
+{
+  MetaRectangle target_size;
+  MetaRectangle min_size, max_size;
+  gboolean hminbad, vminbad;
+  gboolean horiz_equal, vert_equal;
+  gboolean constraint_already_satisfied;
+
+  if (priority > PRIORITY_TILING)
+    return TRUE;
+
+  /* Determine whether constraint applies; exit if it doesn't */
+  if (!META_WINDOW_TILED (window))
+    return TRUE;
+
+  /* Calculate target_size - as the tile previews need this as well, we
+   * use an external function for the actual calculation
+   */
+  meta_window_get_current_tile_area (window, &target_size);
+  unextend_by_frame (&target_size, info->fgeom);
+
+  /* Check min size constraints; max size constraints are ignored as for
+   * maximized windows.
+   */
+  get_size_limits (window, info->fgeom, FALSE, &min_size, &max_size);
+  hminbad = target_size.width < min_size.width;
+  vminbad = target_size.height < min_size.height;
+  if (hminbad || vminbad)
+    return TRUE;
+
+  /* Determine whether constraint is already satisfied; exit if it is */
+  horiz_equal = target_size.x      == info->current.x &&
+                target_size.width  == info->current.width;
+  vert_equal  = target_size.y      == info->current.y &&
+                target_size.height == info->current.height;
+  constraint_already_satisfied = horiz_equal && vert_equal;
+  if (check_only || constraint_already_satisfied)
+    return constraint_already_satisfied;
+
+  /*** Enforce constraint ***/
+  info->current.x      = target_size.x;
+  info->current.width  = target_size.width;
+  info->current.y      = target_size.y;
+  info->current.height = target_size.height;
+
+  return TRUE;
+}
+
+
 static gboolean
 constrain_fullscreen (MetaWindow         *window,
                       ConstraintInfo     *info,
                       ConstraintPriority  priority,
                       gboolean            check_only)
 {
-  MetaRectangle min_size, max_size, xinerama;
+  MetaRectangle min_size, max_size, monitor;
   gboolean too_big, too_small, constraint_already_satisfied;
 
   if (priority > PRIORITY_FULLSCREEN)
@@ -814,22 +933,22 @@ constrain_fullscreen (MetaWindow         *window,
   if (!window->fullscreen)
     return TRUE;
 
-  xinerama = info->entire_xinerama;
+  monitor = info->entire_monitor;
 
   get_size_limits (window, info->fgeom, FALSE, &min_size, &max_size);
-  too_big =   !meta_rectangle_could_fit_rect (&xinerama, &min_size);
-  too_small = !meta_rectangle_could_fit_rect (&max_size, &xinerama);
+  too_big =   !meta_rectangle_could_fit_rect (&monitor, &min_size);
+  too_small = !meta_rectangle_could_fit_rect (&max_size, &monitor);
   if (too_big || too_small)
     return TRUE;
 
   /* Determine whether constraint is already satisfied; exit if it is */
   constraint_already_satisfied =
-    meta_rectangle_equal (&info->current, &xinerama);
+    meta_rectangle_equal (&info->current, &monitor);
   if (check_only || constraint_already_satisfied)
     return constraint_already_satisfied;
 
   /*** Enforce constraint ***/
-  info->current = xinerama;
+  info->current = monitor;
   return TRUE;
 }
 
@@ -849,7 +968,7 @@ constrain_size_increments (MetaWindow         *window,
 
   /* Determine whether constraint applies; exit if it doesn't */
   if (META_WINDOW_MAXIMIZED (window) || window->fullscreen || 
-      info->action_type == ACTION_MOVE)
+      META_WINDOW_TILED (window) || info->action_type == ACTION_MOVE)
     return TRUE;
 
   /* Determine whether constraint is already satisfied; exit if it is */
@@ -980,7 +1099,7 @@ constrain_aspect_ratio (MetaWindow         *window,
   constraints_are_inconsistent = minr > maxr;
   if (constraints_are_inconsistent ||
       META_WINDOW_MAXIMIZED (window) || window->fullscreen || 
-      info->action_type == ACTION_MOVE)
+      META_WINDOW_TILED (window) || info->action_type == ACTION_MOVE)
     return TRUE;
 
   /* Determine whether constraint is already satisfied; exit if it is.  We
@@ -1091,7 +1210,7 @@ constrain_aspect_ratio (MetaWindow         *window,
 }
 
 static gboolean
-do_screen_and_xinerama_relative_constraints (
+do_screen_and_monitor_relative_constraints (
   MetaWindow     *window,
   GList          *region_spanning_rectangles,
   ConstraintInfo *info,
@@ -1107,7 +1226,7 @@ do_screen_and_xinerama_relative_constraints (
       char spanning_region[1 + 28 * g_list_length (region_spanning_rectangles)];
 
       meta_topic (META_DEBUG_GEOMETRY,
-             "screen/xinerama constraint; region_spanning_rectangles: %s\n",
+             "screen/monitor constraint; region_spanning_rectangles: %s\n",
              meta_rectangle_region_to_string (region_spanning_rectangles, ", ",
                                               spanning_region));
     }
@@ -1165,32 +1284,32 @@ do_screen_and_xinerama_relative_constraints (
 }
 
 static gboolean
-constrain_to_single_xinerama (MetaWindow         *window,
-                              ConstraintInfo     *info,
-                              ConstraintPriority  priority,
-                              gboolean            check_only)
+constrain_to_single_monitor (MetaWindow         *window,
+                             ConstraintInfo     *info,
+                             ConstraintPriority  priority,
+                             gboolean            check_only)
 {
-  if (priority > PRIORITY_ENTIRELY_VISIBLE_ON_SINGLE_XINERAMA)
+  if (priority > PRIORITY_ENTIRELY_VISIBLE_ON_SINGLE_MONITOR)
     return TRUE;
 
   /* Exit early if we know the constraint won't apply--note that this constraint
    * is only meant for normal windows (e.g. we don't want docks to be shoved 
    * "onscreen" by their own strut) and we can't apply it to frameless windows
-   * or else users will be unable to move windows such as XMMS across xineramas.
+   * or else users will be unable to move windows such as XMMS across monitors.
    */
   if (window->type == META_WINDOW_DESKTOP   ||
       window->type == META_WINDOW_DOCK      ||
-      window->screen->n_xinerama_infos == 1 ||
-      !window->require_on_single_xinerama   ||
+      window->screen->n_monitor_infos == 1  ||
+      !window->require_on_single_monitor    ||
       !window->frame                        ||
       info->is_user_action)
     return TRUE;
 
   /* Have a helper function handle the constraint for us */
-  return do_screen_and_xinerama_relative_constraints (window, 
-                                                 info->usable_xinerama_region,
-                                                 info,
-                                                 check_only);
+  return do_screen_and_monitor_relative_constraints (window, 
+                                                     info->usable_monitor_region,
+                                                     info,
+                                                     check_only);
 }
 
 static gboolean
@@ -1214,10 +1333,10 @@ constrain_fully_onscreen (MetaWindow         *window,
     return TRUE;
 
   /* Have a helper function handle the constraint for us */
-  return do_screen_and_xinerama_relative_constraints (window, 
-                                                 info->usable_screen_region,
-                                                 info,
-                                                 check_only);
+  return do_screen_and_monitor_relative_constraints (window, 
+                                                     info->usable_screen_region,
+                                                     info,
+                                                     check_only);
 }
 
 static gboolean
@@ -1290,10 +1409,10 @@ constrain_titlebar_visible (MetaWindow         *window,
                                               horiz_amount_onscreen,
                                               vert_amount_onscreen);
   retval =
-    do_screen_and_xinerama_relative_constraints (window, 
-                                                 info->usable_screen_region,
-                                                 info,
-                                                 check_only);
+    do_screen_and_monitor_relative_constraints (window, 
+                                                info->usable_screen_region,
+                                                info,
+                                                check_only);
   meta_rectangle_expand_region_conditionally (info->usable_screen_region,
                                               -horiz_amount_offscreen,
                                               -horiz_amount_offscreen,
@@ -1365,10 +1484,10 @@ constrain_partially_onscreen (MetaWindow         *window,
                                               horiz_amount_onscreen,
                                               vert_amount_onscreen);
   retval =
-    do_screen_and_xinerama_relative_constraints (window, 
-                                                 info->usable_screen_region,
-                                                 info,
-                                                 check_only);
+    do_screen_and_monitor_relative_constraints (window, 
+                                                info->usable_screen_region,
+                                                info,
+                                                check_only);
   meta_rectangle_expand_region_conditionally (info->usable_screen_region,
                                               -horiz_amount_offscreen,
                                               -horiz_amount_offscreen,

src/core/core.c

@@ -28,6 +28,7 @@
 #include "frame-private.h"
 #include "workspace-private.h"
 #include "prefs.h"
+#include "errors.h"
 
 /* Looks up the MetaWindow representing the frame of the given X window.
  * Used as a helper function by a bunch of the functions below.
@@ -116,65 +117,8 @@ meta_core_get (Display *xdisplay,
         *((MetaFrameFlags*)answer) = meta_frame_get_flags (window->frame);
         break; 
       case META_CORE_GET_FRAME_TYPE:
-          {
-          MetaFrameType base_type = META_FRAME_TYPE_LAST;
-
-          switch (window->type)
-            {
-            case META_WINDOW_NORMAL:
-              base_type = META_FRAME_TYPE_NORMAL;
-              break;
-
-            case META_WINDOW_DIALOG:
-              base_type = META_FRAME_TYPE_DIALOG;
-              break;
-
-            case META_WINDOW_MODAL_DIALOG:
-              base_type = META_FRAME_TYPE_MODAL_DIALOG;
-              break;
-
-            case META_WINDOW_MENU:
-              base_type = META_FRAME_TYPE_MENU;
-              break;
-
-            case META_WINDOW_UTILITY:
-              base_type = META_FRAME_TYPE_UTILITY;
-              break;
-
-            case META_WINDOW_DESKTOP:
-            case META_WINDOW_DOCK:
-            case META_WINDOW_TOOLBAR:
-            case META_WINDOW_SPLASHSCREEN:
-	    case META_WINDOW_DROPDOWN_MENU:
-	    case META_WINDOW_POPUP_MENU:
-	    case META_WINDOW_TOOLTIP:
-	    case META_WINDOW_NOTIFICATION:
-	    case META_WINDOW_COMBO:
-	    case META_WINDOW_DND:
-	    case META_WINDOW_OVERRIDE_OTHER:
-              /* No frame */
-              base_type = META_FRAME_TYPE_LAST;
-              break;
-
-            }
-
-          if (base_type == META_FRAME_TYPE_LAST)
-            {
-              /* can't add border if undecorated */
-              *((MetaFrameType*)answer) = META_FRAME_TYPE_LAST; 
-            }
-          else if (window->border_only)
-            {
-              /* override base frame type */
-              *((MetaFrameType*)answer) = META_FRAME_TYPE_BORDER; 
-            }
-          else
-            {
-              *((MetaFrameType*)answer) = base_type;
-            }
-
-          break; 
-          }
+        *((MetaFrameType*)answer) = meta_window_get_frame_type (window);
+        break;
       case META_CORE_GET_MINI_ICON:
         *((GdkPixbuf**)answer) = window->mini_icon;
         break;
@@ -260,15 +204,14 @@ meta_core_user_raise (Display *xdisplay,
   meta_window_raise (window);
 }
 
-void
-meta_core_user_lower_and_unfocus (Display *xdisplay,
-                                  Window   frame_xwindow,
-                                  guint32  timestamp)
+static gboolean
+lower_window_and_transients (MetaWindow *window,
+                             gpointer   data)
 {
-  MetaWindow *window = get_window (xdisplay, frame_xwindow);
-  
   meta_window_lower (window);
 
+  meta_window_foreach_transient (window, lower_window_and_transients, NULL);
+
   if (meta_prefs_get_focus_mode () == META_FOCUS_MODE_CLICK &&
       meta_prefs_get_raise_on_click ())
     {
@@ -296,11 +239,59 @@ meta_core_user_lower_and_unfocus (Display *xdisplay,
         }
     }
 
-  /* focus the default window, if needed */
-  if (window->has_focus)
-    meta_workspace_focus_default_window (window->screen->active_workspace,
-                                         NULL,
-                                         timestamp);
+  return FALSE;
+}
+
+void
+meta_core_user_lower_and_unfocus (Display *xdisplay,
+                                  Window   frame_xwindow,
+                                  guint32  timestamp)
+{
+  MetaWindow *window = get_window (xdisplay, frame_xwindow);
+
+  lower_window_and_transients (window, NULL);
+
+ /* Rather than try to figure that out whether we just lowered
+  * the focus window, assume that's always the case. (Typically,
+  * this will be invoked via keyboard action or by a mouse action;
+  * in either case the window or a modal child will have been focused.) */
+  meta_workspace_focus_default_window (window->screen->active_workspace,
+                                       NULL,
+                                       timestamp);
+}
+
+void
+meta_core_lower_beneath_focus_window (Display *xdisplay,
+                                      Window   xwindow,
+                                      guint32  timestamp)
+{
+  XWindowChanges changes;
+  MetaDisplay *display;
+  MetaScreen *screen;
+  MetaWindow *focus_window;
+
+  display = meta_display_for_x_display (xdisplay);
+  screen = meta_display_screen_for_xwindow (display, xwindow);
+  focus_window = meta_stack_get_top (screen->stack);
+
+  if (focus_window == NULL)
+    return;
+
+  changes.stack_mode = Below;
+  changes.sibling = focus_window->frame ? focus_window->frame->xwindow
+                                        : focus_window->xwindow;
+
+  meta_stack_tracker_record_lower_below (screen->stack_tracker,
+                                         xwindow,
+                                         changes.sibling,
+                                         XNextRequest (screen->display->xdisplay));
+
+  meta_error_trap_push (display);
+  XConfigureWindow (xdisplay,
+                    xwindow,
+                    CWSibling | CWStackMode,
+                    &changes);
+  meta_error_trap_pop (display);
 }
 
 void
@@ -526,6 +517,9 @@ meta_core_get_menu_accelerator (MetaMenuOp           menu_op,
   
   switch (menu_op)
     {
+    case META_MENU_OP_NONE:
+      /* No keybinding for this one */
+      break;
     case META_MENU_OP_DELETE:
       name = "close";
       break;

src/core/delete.c

@@ -22,8 +22,7 @@
  * 02111-1307, USA.
  */
 
-#define _GNU_SOURCE
-#define _SVID_SOURCE /* for gethostname() */
+#define _XOPEN_SOURCE /* for kill() */
 
 #include <config.h>
 #include "util.h"
@@ -32,6 +31,7 @@
 #include "workspace.h"
 
 #include <sys/types.h>
+#include <sys/wait.h>
 #include <signal.h>
 #include <unistd.h>
 #include <errno.h>
@@ -55,27 +55,16 @@ delete_ping_reply_func (MetaDisplay *display,
   /* we do nothing */
 }
 
-static gboolean
-delete_window_callback (gpointer w_p)
-{
-  meta_window_kill ((MetaWindow*) w_p);
-
-  return FALSE; /* don't do it again */
-}
-
 static void
-sigchld_handler (MetaNexus *nexus, guint arg1, gpointer arg2, gpointer user_data)
+dialog_exited (GPid pid, int status, gpointer user_data)
 {
   MetaWindow *ours = (MetaWindow*) user_data;
 
-  if (GPOINTER_TO_INT (arg2) == ours->dialog_pid)
-    {
-      if (arg1 == 1 /* pressed "force quit" */)
-        g_idle_add_full (G_PRIORITY_DEFAULT,
-                         delete_window_callback, user_data, NULL);
+  ours->dialog_pid = -1;
 
-      ours->dialog_pid = -1; /* forget it anyway */
-    }
+  /* exit status of 1 means the user pressed "Force Quit" */
+  if (WIFEXITED (status) && WEXITSTATUS (status) == 1)
+    meta_window_kill (ours);
 }
 
 static void
@@ -86,7 +75,7 @@ delete_ping_timeout_func (MetaDisplay *display,
 {
   MetaWindow *window = user_data;
   char *window_title;
-  gchar *window_content;
+  gchar *window_content, *tmp;
   GPid dialog_pid;
   
   meta_topic (META_DEBUG_PING,
@@ -101,11 +90,14 @@ delete_ping_timeout_func (MetaDisplay *display,
 
   window_title = g_locale_from_utf8 (window->title, -1, NULL, NULL, NULL);
 
-  window_content = g_strdup_printf(
-      _("<big><b><tt>%s</tt> is not responding.</b></big>\n\n"
-      "<i>You may choose to wait a short while for it to "
-      "continue or force the application to quit entirely.</i>"),
-      window_title);
+  /* Translators: %s is a window title */
+  tmp = g_strdup_printf (_("<tt>%s</tt> is not responding."),
+                         window_title);
+  window_content = g_strdup_printf (
+      "<big><b>%s</b></big>\n\n<i>%s</i>",
+      tmp,
+      _("You may choose to wait a short while for it to "
+        "continue or force the application to quit entirely."));
 
   g_free (window_title);
 
@@ -117,13 +109,10 @@ delete_ping_timeout_func (MetaDisplay *display,
                       NULL, NULL);
 
   g_free (window_content);
+  g_free (tmp);
 
   window->dialog_pid = dialog_pid;
-
-  g_signal_connect (sigchld_nexus, "sigchld",
-                    G_CALLBACK (sigchld_handler),
-                    window);
-
+  g_child_watch_add (dialog_pid, dialog_exited, window);
 }
 
 void
@@ -147,7 +136,7 @@ meta_window_delete (MetaWindow  *window,
                   window->desc);
       XKillClient (window->display->xdisplay, window->xwindow);
     }
-  meta_error_trap_pop (window->display, FALSE);
+  meta_error_trap_pop (window->display);
 
   meta_display_ping_window (window->display,
                             window,
@@ -189,42 +178,29 @@ meta_window_delete (MetaWindow  *window,
 void
 meta_window_kill (MetaWindow *window)
 {
-  char buf[257];
-  
   meta_topic (META_DEBUG_WINDOW_OPS,
               "Killing %s brutally\n",
               window->desc);
 
-  if (window->wm_client_machine != NULL &&
+  if (!meta_window_is_remote (window) &&
       window->net_wm_pid > 0)
     {
-      if (gethostname (buf, sizeof(buf)-1) == 0)
-        {
-          if (strcmp (buf, window->wm_client_machine) == 0)
-            {
-              meta_topic (META_DEBUG_WINDOW_OPS,
-                          "Killing %s with kill()\n",
-                          window->desc);
+      meta_topic (META_DEBUG_WINDOW_OPS,
+                  "Killing %s with kill()\n",
+                  window->desc);
 
-              if (kill (window->net_wm_pid, 9) < 0)
-                meta_topic (META_DEBUG_WINDOW_OPS,
-                            "Failed to signal %s: %s\n",
-                            window->desc, strerror (errno));
-            }
-        }
-      else
-        {
-          meta_warning (_("Failed to get hostname: %s\n"),
-                        strerror (errno));
-        }
+      if (kill (window->net_wm_pid, 9) < 0)
+        meta_topic (META_DEBUG_WINDOW_OPS,
+                    "Failed to signal %s: %s\n",
+                    window->desc, strerror (errno));
     }
-  
+
   meta_topic (META_DEBUG_WINDOW_OPS,
               "Disconnecting %s with XKillClient()\n",
               window->desc);
   meta_error_trap_push (window->display);
   XKillClient (window->display->xdisplay, window->xwindow);
-  meta_error_trap_pop (window->display, FALSE);
+  meta_error_trap_pop (window->display);
 }
 
 void

src/core/display-private.h

@@ -83,10 +83,11 @@ struct _MetaDisplay
   
   char *name;
   Display *xdisplay;
+  char *hostname;
 
   Window leader_window;
   Window timestamp_pinging_window;
-  
+
   /* Pull in all the names of atoms as fields; we will intern them when the
    * class is constructed.
    */
@@ -150,6 +151,15 @@ struct _MetaDisplay
   
   guint32 current_time;
 
+  /* We maintain a sequence counter, incremented for each #MetaWindow
+   * created.  This is exposed by meta_window_get_stable_sequence()
+   * but is otherwise not used inside mutter.
+   *
+   * It can be useful to plugins which want to sort windows in a
+   * stable fashion.
+   */
+  guint32 window_sequence_counter;
+
   /* Pings which we're waiting for a reply from */
   GSList     *pending_pings;
 
@@ -175,6 +185,9 @@ struct _MetaDisplay
   guint       grab_have_pointer : 1;
   guint       grab_have_keyboard : 1;
   guint       grab_frame_action : 1;
+  /* During a resize operation, the directions in which we've broken
+   * out of the initial maximization state */
+  guint       grab_resize_unmaximize : 2; /* MetaMaximizeFlags */
   MetaRectangle grab_initial_window_pos;
   int         grab_initial_x, grab_initial_y;  /* These are only relevant for */
   gboolean    grab_threshold_movement_reached; /* raise_on_click == FALSE.    */
@@ -217,8 +230,8 @@ struct _MetaDisplay
   MetaKeyCombo overlay_key_combo;
   gboolean overlay_key_only_pressed;
   
-  /* Xinerama cache */
-  unsigned int xinerama_cache_invalidated : 1;
+  /* Monitor cache */
+  unsigned int monitor_cache_invalidated : 1;
 
   /* Opening the display */
   unsigned int display_opening : 1;
@@ -294,22 +307,15 @@ struct _MetaDisplayClass
   GObjectClass parent_class;
 };
 
-/* Xserver time can wraparound, thus comparing two timestamps needs to take
- * this into account.  Here's a little macro to help out.  If no wraparound
- * has occurred, this is equivalent to
- *   time1 < time2
- * Of course, the rest of the ugliness of this macro comes from accounting
- * for the fact that wraparound can occur and the fact that a timestamp of
- * 0 must be special-cased since it means older than anything else. 
- *
- * Note that this is NOT an equivalent for time1 <= time2; if that's what
- * you need then you'll need to swap the order of the arguments and negate
- * the result.
- */
 #define XSERVER_TIME_IS_BEFORE_ASSUMING_REAL_TIMESTAMPS(time1, time2) \
   ( (( (time1) < (time2) ) && ( (time2) - (time1) < ((guint32)-1)/2 )) ||     \
     (( (time1) > (time2) ) && ( (time1) - (time2) > ((guint32)-1)/2 ))        \
   )
+/**
+ * XSERVER_TIME_IS_BEFORE:
+ *
+ * See the docs for meta_display_xserver_time_is_before().
+ */
 #define XSERVER_TIME_IS_BEFORE(time1, time2)                          \
   ( (time1) == 0 ||                                                     \
     (XSERVER_TIME_IS_BEFORE_ASSUMING_REAL_TIMESTAMPS(time1, time2) && \
@@ -348,9 +354,9 @@ void        meta_display_register_x_window   (MetaDisplay *display,
                                               MetaWindow  *window);
 void        meta_display_unregister_x_window (MetaDisplay *display,
                                               Window       xwindow);
-/* Return whether the xwindow is a no focus window for any of the screens */
-gboolean    meta_display_xwindow_is_a_no_focus_window (MetaDisplay *display,
-                                                       Window xwindow);
+
+void        meta_display_notify_window_created (MetaDisplay  *display,
+                                                MetaWindow   *window);
 
 GSList*     meta_display_list_windows        (MetaDisplay          *display,
                                               MetaListWindowsFlags  flags);
@@ -381,9 +387,8 @@ void meta_display_grab_focus_window_button   (MetaDisplay *display,
 void meta_display_ungrab_focus_window_button (MetaDisplay *display,
                                               MetaWindow  *window);
 
-/* Next two functions are defined in edge-resistance.c */
-void meta_display_compute_resistance_and_snapping_edges (MetaDisplay *display);
-void meta_display_cleanup_edges                         (MetaDisplay *display);
+/* Next function is defined in edge-resistance.c */
+void meta_display_cleanup_edges              (MetaDisplay *display);
 
 /* make a request to ensure the event serial has changed */
 void     meta_display_increment_event_serial (MetaDisplay *display);

src/core/display.c

@@ -30,6 +30,8 @@
  * The display is represented as a MetaDisplay struct.
  */
 
+#define _XOPEN_SOURCE 600 /* for gethostname() */
+
 #include <config.h>
 #include "display-private.h"
 #include "util.h"
@@ -72,6 +74,7 @@
 #include <X11/extensions/Xdamage.h>
 #include <X11/extensions/Xfixes.h>
 #include <string.h>
+#include <unistd.h>
 
 #define GRAB_OP_IS_WINDOW_SWITCH(g)                     \
         (g == META_GRAB_OP_KEYBOARD_TABBING_NORMAL  ||  \
@@ -129,6 +132,9 @@ enum
 {
   OVERLAY_KEY,
   FOCUS_WINDOW,
+  WINDOW_CREATED,
+  WINDOW_DEMANDS_ATTENTION,
+  WINDOW_MARKED_URGENT,
   LAST_SIGNAL
 };
 
@@ -148,8 +154,10 @@ static guint display_signals [LAST_SIGNAL] = { 0 };
  */
 static MetaDisplay *the_display = NULL;
 
+#ifdef WITH_VERBOSE_MODE
 static void   meta_spew_event           (MetaDisplay    *display,
                                          XEvent         *event);
+#endif
 
 static gboolean event_callback          (XEvent         *event,
                                          gpointer        data);
@@ -226,6 +234,34 @@ meta_display_class_init (MetaDisplayClass *klass)
                   g_cclosure_marshal_VOID__VOID,
                   G_TYPE_NONE, 0);
 
+  display_signals[WINDOW_CREATED] =
+    g_signal_new ("window-created",
+                  G_TYPE_FROM_CLASS (klass),
+                  G_SIGNAL_RUN_LAST,
+                  0,
+                  NULL, NULL,
+                  g_cclosure_marshal_VOID__OBJECT,
+                  G_TYPE_NONE, 1, META_TYPE_WINDOW);
+
+  display_signals[WINDOW_DEMANDS_ATTENTION] =
+    g_signal_new ("window-demands-attention",
+                  G_TYPE_FROM_CLASS (klass),
+                  G_SIGNAL_RUN_LAST,
+                  0,
+                  NULL, NULL,
+                  g_cclosure_marshal_VOID__OBJECT,
+                  G_TYPE_NONE, 1, META_TYPE_WINDOW);
+
+  display_signals[WINDOW_MARKED_URGENT] =
+    g_signal_new ("window-marked-urgent",
+                  G_TYPE_FROM_CLASS (klass),
+                  G_SIGNAL_RUN_LAST,
+                  0,
+                  NULL, NULL,
+                  g_cclosure_marshal_VOID__OBJECT,
+                  G_TYPE_NONE, 1,
+                  META_TYPE_WINDOW);
+
   g_object_class_install_property (object_class,
                                    PROP_FOCUS_WINDOW,
                                    g_param_spec_object ("focus-window",
@@ -311,7 +347,7 @@ sn_error_trap_pop (SnDisplay *sn_display,
   MetaDisplay *display;
   display = meta_display_for_x_display (xdisplay);
   if (display != NULL)
-    meta_error_trap_pop (display, FALSE);
+    meta_error_trap_pop (display);
 }
 #endif
 
@@ -396,6 +432,7 @@ meta_display_open (void)
   GSList *tmp;
   int i;
   guint32 timestamp;
+  char buf[257];
 
   /* A list of all atom names, so that we can intern them in one go. */
   char *atom_names[] = {
@@ -430,6 +467,11 @@ meta_display_open (void)
    */
   the_display->name = g_strdup (XDisplayName (NULL));
   the_display->xdisplay = xdisplay;
+  if (gethostname (buf, sizeof(buf)-1) == 0)
+    {
+      buf[sizeof(buf)-1] = '\0';
+      the_display->hostname = g_strdup (buf);
+    }
   the_display->error_trap_synced_at_last_pop = TRUE;
   the_display->error_traps = 0;
   the_display->error_trap_handler = NULL;
@@ -483,7 +525,7 @@ meta_display_open (void)
   the_display->leader_window = None;
   the_display->timestamp_pinging_window = None;
 
-  the_display->xinerama_cache_invalidated = TRUE;
+  the_display->monitor_cache_invalidated = TRUE;
 
   the_display->groups_by_leader = NULL;
 
@@ -722,6 +764,13 @@ meta_display_open (void)
                                     the_display->leader_window,
                                     the_display->atom__NET_WM_NAME,
                                     "Mutter");
+
+    /* The GNOME keybindings capplet should include both the Mutter and Metacity
+     * keybindings */
+    meta_prop_set_utf8_string_hint (the_display,
+                                    the_display->leader_window,
+                                    the_display->atom__GNOME_WM_KEYBINDINGS,
+                                    "Mutter,Metacity");
     
     meta_prop_set_utf8_string_hint (the_display,
                                     the_display->leader_window,
@@ -841,7 +890,7 @@ meta_display_open (void)
                                                   timestamp);
       }
 
-    meta_error_trap_pop (the_display, FALSE);
+    meta_error_trap_pop (the_display);
   }
   
   meta_display_ungrab (the_display);  
@@ -1007,6 +1056,7 @@ meta_display_close (MetaDisplay *display,
     meta_compositor_destroy (display->compositor);
   
   g_object_unref (display);
+  the_display = NULL;
 
   meta_quit (META_EXIT_SUCCESS);
 }
@@ -1049,7 +1099,7 @@ meta_display_screen_for_xwindow (MetaDisplay *display,
   meta_error_trap_push (display);
   attr.screen = NULL;
   result = XGetWindowAttributes (display->xdisplay, xwindow, &attr);
-  meta_error_trap_pop (display, TRUE);
+  meta_error_trap_pop (display);
 
   /* Note, XGetWindowAttributes is on all kinds of crack
    * and returns 1 on success 0 on failure, rather than Success
@@ -1198,6 +1248,7 @@ grab_op_is_mouse (MetaGrabOp op)
     case META_GRAB_OP_KEYBOARD_RESIZING_SW:
     case META_GRAB_OP_KEYBOARD_RESIZING_NW:
     case META_GRAB_OP_KEYBOARD_MOVING:
+    case META_GRAB_OP_COMPOSITOR:
       return TRUE;
 
     default:
@@ -1227,6 +1278,7 @@ grab_op_is_keyboard (MetaGrabOp op)
     case META_GRAB_OP_KEYBOARD_ESCAPING_DOCK:
     case META_GRAB_OP_KEYBOARD_ESCAPING_GROUP:
     case META_GRAB_OP_KEYBOARD_WORKSPACE_SWITCHING:
+    case META_GRAB_OP_COMPOSITOR:
       return TRUE;
 
     default:
@@ -1277,6 +1329,43 @@ meta_grab_op_is_moving (MetaGrabOp op)
     }
 }
 
+/**
+ * meta_display_xserver_time_is_before:
+ * @display: a #MetaDisplay
+ * @time1: An event timestamp
+ * @time2: An event timestamp
+ *
+ * Xserver time can wraparound, thus comparing two timestamps needs to take
+ * this into account. If no wraparound has occurred, this is equivalent to
+ *   time1 < time2
+ * Otherwise, we need to account for the fact that wraparound can occur
+ * and the fact that a timestamp of 0 must be special-cased since it
+ * means "older than anything else".
+ *
+ * Note that this is NOT an equivalent for time1 <= time2; if that's what
+ * you need then you'll need to swap the order of the arguments and negate
+ * the result.
+ */
+gboolean
+meta_display_xserver_time_is_before (MetaDisplay   *display,
+                                     guint32        time1,
+                                     guint32        time2)
+{
+  return XSERVER_TIME_IS_BEFORE(time1, time2);
+}
+
+/**
+ * meta_display_get_last_user_time:
+ * @display: a #MetaDisplay
+ *
+ * Returns: Timestamp of the last user interaction event with a window
+ */
+guint32
+meta_display_get_last_user_time (MetaDisplay *display)
+{
+  return display->last_user_time;
+}
+
 /* Get time of current event, or CurrentTime if none. */
 guint32
 meta_display_get_current_time (MetaDisplay *display)
@@ -1403,7 +1492,7 @@ window_raise_with_delay_callback (void *data)
 				   window->xwindow,
 				   &root, &child,
 				   &root_x, &root_y, &x, &y, &mask);
-      meta_error_trap_pop (window->display, TRUE);
+      meta_error_trap_pop (window->display);
 
       point_in_window = 
         (window->frame && POINT_IN_RECT (root_x, root_y, window->frame->rect)) ||
@@ -1508,6 +1597,7 @@ event_callback (XEvent   *event,
   MetaDisplay *display;
   Window modified;
   gboolean frame_was_receiver;
+  gboolean bypass_compositor;
   gboolean filter_out_event;
 
   display = data;
@@ -1521,9 +1611,10 @@ event_callback (XEvent   *event,
   sn_display_process_event (display->sn_display, event);
 #endif
   
+  bypass_compositor = FALSE;
   filter_out_event = FALSE;
   display->current_time = event_get_time (display, event);
-  display->xinerama_cache_invalidated = TRUE;
+  display->monitor_cache_invalidated = TRUE;
   
   modified = event_get_modified_window (display, event);
   
@@ -1644,7 +1735,8 @@ event_callback (XEvent   *event,
     }
 #endif /* HAVE_SHAPE */
 
-  if (window && ((event->type == KeyPress) || (event->type == ButtonPress)))
+  if (window && !window->override_redirect &&
+      ((event->type == KeyPress) || (event->type == ButtonPress)))
     {
       if (CurrentTime == display->current_time)
         {
@@ -1667,15 +1759,26 @@ event_callback (XEvent   *event,
     {
     case KeyPress:
     case KeyRelease:
-      meta_display_process_key_event (display, window, event);
+      if (display->grab_op == META_GRAB_OP_COMPOSITOR)
+        break;
+
+      /* For key events, it's important to enforce single-handling, or
+       * we can get into a confused state. So if a keybinding is
+       * handled (because it's one of our hot-keys, or because we are
+       * in a keyboard-grabbed mode like moving a window, we don't
+       * want to pass the key event to the compositor at all.
+       */
+      bypass_compositor = meta_display_process_key_event (display, window, event);
       break;
     case ButtonPress:
+      if (display->grab_op == META_GRAB_OP_COMPOSITOR)
+        break;
+
       if (event->xbutton.button == 4 || event->xbutton.button == 5)
-        {
-          /* Scrollwheel event, do nothing and deliver event to compositor below
-           */
-        }
-      else if ((window &&
+        /* Scrollwheel event, do nothing and deliver event to compositor below */
+        break;
+
+      if ((window &&
            grab_op_is_mouse (display->grab_op) &&
            display->grab_button != (int) event->xbutton.button &&
            display->grab_window == window) ||
@@ -1865,16 +1968,25 @@ event_callback (XEvent   *event,
         }
       break;
     case ButtonRelease:
+      if (display->grab_op == META_GRAB_OP_COMPOSITOR)
+        break;
+
       if (display->grab_window == window &&
           grab_op_is_mouse (display->grab_op))
         meta_window_handle_mouse_grab_op_event (window, event);
       break;
     case MotionNotify:
+      if (display->grab_op == META_GRAB_OP_COMPOSITOR)
+        break;
+
       if (display->grab_window == window &&
           grab_op_is_mouse (display->grab_op))
         meta_window_handle_mouse_grab_op_event (window, event);
       break;
     case EnterNotify:
+      if (display->grab_op == META_GRAB_OP_COMPOSITOR)
+        break;
+
       if (display->grab_window == window &&
           grab_op_is_mouse (display->grab_op))
         {
@@ -1967,6 +2079,9 @@ event_callback (XEvent   *event,
         }
       break;
     case LeaveNotify:
+      if (display->grab_op == META_GRAB_OP_COMPOSITOR)
+        break;
+
       if (display->grab_window == window &&
           grab_op_is_mouse (display->grab_op))
         meta_window_handle_mouse_grab_op_event (window, event);
@@ -2093,7 +2208,7 @@ event_callback (XEvent   *event,
                             window->frame->xwindow);
               meta_error_trap_push (display);
               meta_window_destroy_frame (window->frame->window);
-              meta_error_trap_pop (display, FALSE);
+              meta_error_trap_pop (display);
             }
           else
             {
@@ -2262,7 +2377,7 @@ event_callback (XEvent   *event,
           meta_error_trap_push (display);
           XConfigureWindow (display->xdisplay, event->xconfigurerequest.window,
                             xwcm, &xwc);
-          meta_error_trap_pop (display, FALSE);
+          meta_error_trap_pop (display);
         }
       else
         {
@@ -2521,7 +2636,7 @@ event_callback (XEvent   *event,
 	    {
 	    case XkbBellNotify:
               if (XSERVER_TIME_IS_BEFORE(display->last_bell_time,
-                                         xkb_ev->time - 1000))
+                                         xkb_ev->time - 100))
                 {
                   display->last_bell_time = xkb_ev->time;
                   meta_bell_notify (display, xkb_ev);
@@ -2533,7 +2648,7 @@ event_callback (XEvent   *event,
       break;
     }
 
-  if (display->compositor)
+  if (display->compositor && !bypass_compositor)
     {
       if (meta_compositor_process_event (display->compositor,
                                          event,
@@ -3033,7 +3148,7 @@ meta_spew_event (MetaDisplay *display,
         meta_error_trap_push (display);
         str = XGetAtomName (display->xdisplay,
                             event->xproperty.atom);
-        meta_error_trap_pop (display, TRUE);
+        meta_error_trap_pop (display);
 
         if (event->xproperty.state == PropertyNewValue)
           state = "PropertyNewValue";
@@ -3067,7 +3182,7 @@ meta_spew_event (MetaDisplay *display,
         meta_error_trap_push (display);
         str = XGetAtomName (display->xdisplay,
                             event->xclient.message_type);
-        meta_error_trap_pop (display, TRUE);
+        meta_error_trap_pop (display);
         extra = g_strdup_printf ("type: %s format: %d\n",
                                  str ? str : "(unknown atom)",
                                  event->xclient.format);
@@ -3175,6 +3290,22 @@ meta_display_unregister_x_window (MetaDisplay *display,
   remove_pending_pings_for_window (display, xwindow);
 }
 
+void
+meta_display_notify_window_created (MetaDisplay  *display,
+                                    MetaWindow   *window)
+{
+  g_signal_emit (display, display_signals[WINDOW_CREATED], 0, window);
+}
+
+/**
+ * meta_display_xwindow_is_a_no_focus_window:
+ * @display: A #MetaDisplay
+ * @xwindow: An X11 window
+ *
+ * Returns %TRUE iff window is one of mutter's internal "no focus" windows
+ * (there is one per screen) which will have the focus when there is no
+ * actual client window focused.
+ */
 gboolean
 meta_display_xwindow_is_a_no_focus_window (MetaDisplay *display,
                                            Window xwindow)
@@ -3329,7 +3460,7 @@ meta_display_set_grab_op_cursor (MetaDisplay *display,
       meta_topic (META_DEBUG_WINDOW_OPS,
                   "Changed pointer with XChangeActivePointerGrab()\n");
 
-      if (meta_error_trap_pop_with_return (display, FALSE) != Success)
+      if (meta_error_trap_pop_with_return (display) != Success)
         {
           meta_topic (META_DEBUG_WINDOW_OPS,
                       "Error trapped from XChangeActivePointerGrab()\n");
@@ -3362,7 +3493,7 @@ meta_display_set_grab_op_cursor (MetaDisplay *display,
                       "XGrabPointer() failed time %u\n",
                       timestamp);
         }
-      meta_error_trap_pop (display, TRUE);
+      meta_error_trap_pop (display);
     }
 
 #undef GRAB_MASK
@@ -3479,6 +3610,7 @@ meta_display_begin_grab_op (MetaDisplay *display,
   display->grab_last_user_action_was_snap = FALSE;
 #endif
   display->grab_frame_action = frame_action;
+  display->grab_resize_unmaximize = 0;
 
   if (display->grab_resize_timeout_id)
     {
@@ -3537,7 +3669,7 @@ meta_display_begin_grab_op (MetaDisplay *display,
                                                          XSyncCAEvents,
                                                          &values);
 
-          if (meta_error_trap_pop_with_return (display, FALSE) != Success)
+          if (meta_error_trap_pop_with_return (display) != Success)
 	    display->grab_sync_request_alarm = None;
 
           meta_topic (META_DEBUG_RESIZING,
@@ -3554,18 +3686,6 @@ meta_display_begin_grab_op (MetaDisplay *display,
   g_assert (display->grab_window != NULL || display->grab_screen != NULL);
   g_assert (display->grab_op != META_GRAB_OP_NONE);
 
-  /* If this is a move or resize, cache the window edges for
-   * resistance/snapping
-   */
-  if (meta_grab_op_is_resizing (display->grab_op) || 
-      meta_grab_op_is_moving (display->grab_op))
-    {
-      meta_topic (META_DEBUG_WINDOW_OPS,
-                  "Computing edges to resist-movement or snap-to for %s.\n",
-                  window->desc);
-      meta_display_compute_resistance_and_snapping_edges (display);
-    }
-
   /* Save the old stacking */
   if (GRAB_OP_IS_WINDOW_SWITCH (display->grab_op))
     {
@@ -3688,6 +3808,21 @@ meta_display_end_grab_op (MetaDisplay *display,
     }
 }
 
+/**
+ * meta_display_get_grab_op:
+ * Gets the current grab operation, if any.
+ *
+ * Return value: the current grab operation, or %META_GRAB_OP_NONE if
+ * Mutter doesn't currently have a grab. %META_GRAB_OP_COMPOSITOR will
+ * be returned if a compositor-plugin modal operation is in effect
+ * (See mutter_begin_modal_for_plugin())
+ */
+MetaGrabOp
+meta_display_get_grab_op (MetaDisplay *display)
+{
+  return display->grab_op;
+}
+
 void
 meta_display_check_threshold_reached (MetaDisplay *display,
                                       int          x,
@@ -3753,7 +3888,7 @@ meta_change_button_grab (MetaDisplay *display,
         {
           int result;
           
-          result = meta_error_trap_pop_with_return (display, FALSE);
+          result = meta_error_trap_pop_with_return (display);
           
           if (result != Success)
             meta_verbose ("Failed to %s button %d with mask 0x%x for window 0x%lx error code %d\n",
@@ -3764,7 +3899,7 @@ meta_change_button_grab (MetaDisplay *display,
       ++ignored_mask;
     }
 
-  meta_error_trap_pop (display, FALSE);
+  meta_error_trap_pop (display);
 }
 
 void
@@ -3948,7 +4083,7 @@ meta_display_update_active_window_hint (MetaDisplay *display)
                        XA_WINDOW,
                        32, PropModeReplace, (guchar*) data, 1);
 
-      meta_error_trap_pop (display, FALSE);
+      meta_error_trap_pop (display);
 
       tmp = tmp->next;
     }
@@ -4045,8 +4180,8 @@ meta_set_syncing (gboolean setting)
   if (setting != is_syncing)
     {
       is_syncing = setting;
-
-      XSynchronize (meta_get_display ()->xdisplay, is_syncing);
+      if (meta_get_display ())
+        XSynchronize (meta_get_display ()->xdisplay, is_syncing);
     }
 }
 
@@ -4054,7 +4189,7 @@ meta_set_syncing (gboolean setting)
  * How long, in milliseconds, we should wait after pinging a window
  * before deciding it's not going to get back to us.
  */
-#define PING_TIMEOUT_DELAY 2250
+#define PING_TIMEOUT_DELAY 5000
 
 /**
  * Does whatever it is we decided to do when a window didn't respond
@@ -4228,7 +4363,7 @@ process_request_frame_extents (MetaDisplay    *display,
                    display->atom__NET_FRAME_EXTENTS,
                    XA_CARDINAL,
                    32, PropModeReplace, (guchar*) data, 4);
-  meta_error_trap_pop (display, FALSE);
+  meta_error_trap_pop (display);
 
   meta_XFree (hints);
 }
@@ -4416,6 +4551,18 @@ find_tab_backward (MetaDisplay   *display,
   return NULL;
 }
 
+/**
+ * meta_display_get_tab_list:
+ * @display: a #MetaDisplay
+ * @type: type of tab list
+ * @screen: a #MetaScreen
+ * @workspace: origin workspace
+ *
+ * Determine the list of windows that should be displayed for Alt-TAB
+ * functionality.  The windows are returned in most recently used order.
+ *
+ * Returns: (transfer container) (element-type Meta.Window): List of windows
+ */
 GList*
 meta_display_get_tab_list (MetaDisplay   *display,
                            MetaTabList    type,
@@ -4479,7 +4626,8 @@ meta_display_get_tab_list (MetaDisplay   *display,
 
         /* Check to see if it demands attention */
         if (l_window->wm_state_demands_attention && 
-            l_window->workspace!=workspace) 
+            l_window->workspace!=workspace &&
+            IN_TAB_CHAIN (l_window, type)) 
           {
             /* if it does, add it to the popup */
             tab_list = g_list_prepend (tab_list, l_window);
@@ -4492,6 +4640,21 @@ meta_display_get_tab_list (MetaDisplay   *display,
   return tab_list;
 }
 
+/**
+ * meta_display_get_tab_next:
+ * @display: a #MetaDisplay
+ * @type: type of tab list
+ * @screen: a #MetaScreen
+ * @workspace: origin workspace
+ * @window: (allow-none): starting window 
+ * @backward: If %TRUE, look for the previous window.  
+ *
+ * Determine the next window that should be displayed for Alt-TAB
+ * functionality.
+ *
+ * Returns: (transfer none): Next window
+ *
+ */
 MetaWindow*
 meta_display_get_tab_next (MetaDisplay   *display,
                            MetaTabList    type,
@@ -4529,7 +4692,7 @@ meta_display_get_tab_next (MetaDisplay   *display,
   else
     {
       skip = display->focus_window != NULL && 
-             IN_TAB_CHAIN (display->focus_window, type);
+             tab_list->data == display->focus_window;
       if (backward)
         ret = find_tab_backward (display, type, screen, workspace,
                                  tab_list, skip);
@@ -4542,6 +4705,18 @@ meta_display_get_tab_next (MetaDisplay   *display,
   return ret;
 }
 
+/**
+ * meta_display_get_tab_current:
+ * @display: a #MetaDisplay
+ * @type: type of tab list
+ * @screen: a #MetaScreen
+ * @workspace: origin workspace
+ *
+ * Determine the active window that should be displayed for Alt-TAB.
+ *
+ * Returns: (transfer none): Current window
+ *
+ */
 MetaWindow*
 meta_display_get_tab_current (MetaDisplay   *display,
                               MetaTabList    type,
@@ -4666,11 +4841,11 @@ convert_property (MetaDisplay *display,
 		     (unsigned char *)icccm_version, 2);
   else
     {
-      meta_error_trap_pop_with_return (display, FALSE);
+      meta_error_trap_pop_with_return (display);
       return FALSE;
     }
   
-  if (meta_error_trap_pop_with_return (display, FALSE) != Success)
+  if (meta_error_trap_pop_with_return (display) != Success)
     return FALSE;
 
   /* Be sure the PropertyNotify has arrived so we
@@ -4702,7 +4877,7 @@ process_selection_request (MetaDisplay   *display,
       meta_error_trap_push (display);
       str = XGetAtomName (display->xdisplay,
                           event->xselectionrequest.selection);
-      meta_error_trap_pop (display, TRUE);
+      meta_error_trap_pop (display);
       
       meta_verbose ("Selection request with selection %s window 0x%lx not a WM_Sn selection we recognize\n",
                     str ? str : "(bad atom)", event->xselectionrequest.owner);
@@ -4736,11 +4911,11 @@ process_selection_request (MetaDisplay   *display,
                                   display->atom_ATOM_PAIR,
                                   &type, &format, &num, &rest, &data) != Success)
             {
-              meta_error_trap_pop_with_return (display, TRUE);
+              meta_error_trap_pop_with_return (display);
               return;
             }
           
-          if (meta_error_trap_pop_with_return (display, TRUE) == Success)
+          if (meta_error_trap_pop_with_return (display) == Success)
             {              
               /* FIXME: to be 100% correct, should deal with rest > 0,
                * but since we have 4 possible targets, we will hardly ever
@@ -4763,7 +4938,7 @@ process_selection_request (MetaDisplay   *display,
                                event->xselectionrequest.property,
                                display->atom_ATOM_PAIR,
                                32, PropModeReplace, data, num);
-              meta_error_trap_pop (display, FALSE);
+              meta_error_trap_pop (display);
               meta_XFree (data);
             }
         }
@@ -4819,7 +4994,7 @@ process_selection_clear (MetaDisplay   *display,
     meta_error_trap_push (display);
     str = XGetAtomName (display->xdisplay,
                         event->xselectionclear.selection);
-    meta_error_trap_pop (display, TRUE);
+    meta_error_trap_pop (display);
 
     meta_verbose ("Selection clear with selection %s window 0x%lx not a WM_Sn selection we recognize\n",
                   str ? str : "(bad atom)", event->xselectionclear.window);
@@ -4886,6 +5061,34 @@ meta_display_stack_cmp (const void *a,
     return 0; /* not reached in theory, if windows on same display */
 }
 
+/**
+ * meta_display_sort_windows_by_stacking:
+ * @display: a #MetaDisplay
+ * @windows: (element-type MetaWindow): Set of windows
+ *
+ * Sorts a set of windows according to their current stacking order. If windows
+ * from multiple screens are present in the set of input windows, then all the
+ * windows on screen 0 are sorted below all the windows on screen 1, and so forth.
+ * Since the stacking order of override-redirect windows isn't controlled by
+ * Metacity, if override-redirect windows are in the input, the result may not
+ * correspond to the actual stacking order in the X server.
+ *
+ * An example of using this would be to sort the list of transient dialogs for a
+ * window into their current stacking order.
+ *
+ * Returns: (transfer container): Input windows sorted by stacking order, from lowest to highest
+ */
+GSList *
+meta_display_sort_windows_by_stacking (MetaDisplay *display,
+                                       GSList      *windows)
+{
+  GSList *copy = g_slist_copy (windows);
+
+  copy = g_slist_sort (copy, meta_display_stack_cmp);
+
+  return copy;
+}
+
 void
 meta_display_devirtualize_modifiers (MetaDisplay        *display,
                                      MetaVirtualModifier modifiers,
@@ -4990,6 +5193,34 @@ prefs_changed_callback (MetaPreference pref,
       else
 	disable_compositor (display);
     }
+  else if (pref == META_PREF_ATTACH_MODAL_DIALOGS)
+    {
+      MetaDisplay *display = data;
+      GSList *windows;
+      GSList *tmp;
+
+      windows = meta_display_list_windows (display, META_LIST_DEFAULT);
+
+      for (tmp = windows; tmp != NULL; tmp = tmp->next)
+        {
+          MetaWindow *w = tmp->data;
+          MetaWindow *parent = meta_window_get_transient_for (w);
+          meta_window_recalc_features (w);
+
+          if (w->type == META_WINDOW_MODAL_DIALOG && parent && parent != w)
+            {
+              int x, y;
+              /* Forcing a call to move_resize() does two things: first, it handles
+               * resizing the dialog frame window to the correct size when we remove
+               * or add the decorations. Second, it will take care of positioning the
+               * dialog as "attached" to the parent when we turn the preference on
+               * via the constrain_modal_dialog() constraint.
+               **/
+              meta_window_get_position (w, &x, &y);
+              meta_window_move (w, FALSE, x, y);
+            }
+        }
+    }
 }
 
 void
@@ -5059,9 +5290,9 @@ sanity_check_timestamps (MetaDisplay *display,
               meta_warning ("%s appears to be one of the offending windows "
                             "with a timestamp of %u.  Working around...\n",
                             window->desc, window->net_wm_user_time);
-              window->net_wm_user_time = timestamp;
+              meta_window_set_user_time (window, timestamp);
             }
-          
+
           tmp = tmp->next;
         }
 
@@ -5135,7 +5366,7 @@ meta_display_set_input_focus_window (MetaDisplay *display,
                   focus_frame ? window->frame->xwindow : window->xwindow,
                   RevertToPointerRoot,
                   timestamp);
-  meta_error_trap_pop (display, FALSE);
+  meta_error_trap_pop (display);
 
   display->expected_focus_window = window;
   display->last_focus_time = timestamp;
@@ -5190,18 +5421,32 @@ meta_display_get_compositor_version (MetaDisplay *display,
   *minor = display->composite_minor_version;
 }
 
+/**
+ * meta_display_get_xdisplay: (skip)
+ *
+ */
 Display *
 meta_display_get_xdisplay (MetaDisplay *display)
 {
   return display->xdisplay;
 }
 
+/**
+ * meta_display_get_compositor: (skip)
+ *
+ */
 MetaCompositor *
 meta_display_get_compositor (MetaDisplay *display)
 {
   return display->compositor;
 }
 
+/**
+ * meta_display_get_screens:
+ * @display: a #MetaDisplay
+ *
+ * Returns: (transfer none) (element-type Meta.Screen): Screens for this display
+ */
 GSList *
 meta_display_get_screens (MetaDisplay *display)
 {
@@ -5246,9 +5491,32 @@ meta_display_get_shape_event_base (MetaDisplay *display)
 }
 #endif
 
+/**
+ * meta_display_get_atom: (skip)
+ *
+ * Gets up an X atom that Mutter prefetched at startup.
+ *
+ * Return value: the X atom corresponding to the given atom enumeration
+ */
 Atom meta_display_get_atom (MetaDisplay *display, MetaAtom meta_atom)
 {
   Atom *atoms = & display->atom_WM_PROTOCOLS;
 
   return atoms[meta_atom - 1];
 }
+
+/**
+ * meta_display_get_leader_window:
+ * @display: a #MetaDisplay
+ *
+ * Returns the window manager's leader window (as defined by the
+ * _NET_SUPPORTING_WM_CHECK mechanism of EWMH). For use by plugins that wish
+ * to attach additional custom properties to this window.
+ *
+ * Return value: (transfer none): xid of the leader window.
+ **/
+Window
+meta_display_get_leader_window (MetaDisplay *display)
+{
+  return display->leader_window;
+}

src/core/edge-resistance.c

@@ -23,7 +23,7 @@
 
 #include <config.h>
 #include "edge-resistance.h"
-#include "boxes.h"
+#include "boxes-private.h"
 #include "display-private.h"
 #include "workspace-private.h"
 
@@ -63,6 +63,8 @@ struct MetaEdgeResistanceData
   ResistanceDataForAnEdge bottom_data;
 };
 
+static void compute_resistance_and_snapping_edges (MetaDisplay *display);
+
 /* !WARNING!: this function can return invalid indices (namely, either -1 or
  * edges->len); this is by design, but you need to remember this.
  */
@@ -340,12 +342,12 @@ apply_edge_resistance (MetaWindow                *window,
 
   const int PIXEL_DISTANCE_THRESHOLD_TOWARDS_WINDOW    = 16;
   const int PIXEL_DISTANCE_THRESHOLD_AWAYFROM_WINDOW   =  0;
-  const int PIXEL_DISTANCE_THRESHOLD_TOWARDS_XINERAMA  = 32;
-  const int PIXEL_DISTANCE_THRESHOLD_AWAYFROM_XINERAMA =  0;
+  const int PIXEL_DISTANCE_THRESHOLD_TOWARDS_MONITOR   = 32;
+  const int PIXEL_DISTANCE_THRESHOLD_AWAYFROM_MONITOR  =  0;
   const int PIXEL_DISTANCE_THRESHOLD_TOWARDS_SCREEN    = 32;
   const int PIXEL_DISTANCE_THRESHOLD_AWAYFROM_SCREEN   =  0;
   const int TIMEOUT_RESISTANCE_LENGTH_MS_WINDOW   =   0;
-  const int TIMEOUT_RESISTANCE_LENGTH_MS_XINERAMA =   0;
+  const int TIMEOUT_RESISTANCE_LENGTH_MS_MONITOR =   0;
   const int TIMEOUT_RESISTANCE_LENGTH_MS_SCREEN   =   0;
 
   /* Quit if no movement was specified */
@@ -423,8 +425,8 @@ apply_edge_resistance (MetaWindow                *window,
                 case META_EDGE_WINDOW:
                   timeout_length_ms = TIMEOUT_RESISTANCE_LENGTH_MS_WINDOW;
                   break;
-                case META_EDGE_XINERAMA:
-                  timeout_length_ms = TIMEOUT_RESISTANCE_LENGTH_MS_XINERAMA;
+                case META_EDGE_MONITOR:
+                  timeout_length_ms = TIMEOUT_RESISTANCE_LENGTH_MS_MONITOR;
                   break;
                 case META_EDGE_SCREEN:
                   timeout_length_ms = TIMEOUT_RESISTANCE_LENGTH_MS_SCREEN;
@@ -468,11 +470,11 @@ apply_edge_resistance (MetaWindow                *window,
               else
                 threshold = PIXEL_DISTANCE_THRESHOLD_AWAYFROM_WINDOW;
               break;
-            case META_EDGE_XINERAMA:
+            case META_EDGE_MONITOR:
               if (movement_towards_edge (edge->side_type, increment))
-                threshold = PIXEL_DISTANCE_THRESHOLD_TOWARDS_XINERAMA;
+                threshold = PIXEL_DISTANCE_THRESHOLD_TOWARDS_MONITOR;
               else
-                threshold = PIXEL_DISTANCE_THRESHOLD_AWAYFROM_XINERAMA;
+                threshold = PIXEL_DISTANCE_THRESHOLD_AWAYFROM_MONITOR;
               break;
             case META_EDGE_SCREEN:
               if (movement_towards_edge (edge->side_type, increment))
@@ -550,7 +552,9 @@ apply_edge_resistance_to_each_side (MetaDisplay         *display,
   gboolean                modified;
   int new_left, new_right, new_top, new_bottom;
 
-  g_assert (display->grab_edge_resistance_data != NULL);
+  if (display->grab_edge_resistance_data == NULL)
+    compute_resistance_and_snapping_edges (display);
+
   edge_data = display->grab_edge_resistance_data;
 
   if (auto_snap)
@@ -671,7 +675,8 @@ meta_display_cleanup_edges (MetaDisplay *display)
   MetaEdgeResistanceData *edge_data = display->grab_edge_resistance_data;
   GHashTable *edges_to_be_freed;
 
-  g_assert (edge_data != NULL);
+  if (edge_data == NULL) /* Not currently cached */
+    return;
 
   /* We first need to clean out any window edges */
   edges_to_be_freed = g_hash_table_new_full (g_direct_hash, g_direct_equal,
@@ -761,7 +766,7 @@ stupid_sort_requiring_extra_pointer_dereference (gconstpointer a,
 static void
 cache_edges (MetaDisplay *display,
              GList *window_edges,
-             GList *xinerama_edges,
+             GList *monitor_edges,
              GList *screen_edges)
 {
   MetaEdgeResistanceData *edge_data;
@@ -776,7 +781,7 @@ cache_edges (MetaDisplay *display,
   if (meta_is_verbose())
     {
       int max_edges = MAX (MAX( g_list_length (window_edges), 
-                                g_list_length (xinerama_edges)),
+                                g_list_length (monitor_edges)),
                            g_list_length (screen_edges));
       char big_buffer[(EDGE_LENGTH+2)*max_edges];
 
@@ -784,9 +789,9 @@ cache_edges (MetaDisplay *display,
       meta_topic (META_DEBUG_EDGE_RESISTANCE,
                   "Window edges for resistance  : %s\n", big_buffer);
 
-      meta_rectangle_edge_list_to_string (xinerama_edges, ", ", big_buffer);
+      meta_rectangle_edge_list_to_string (monitor_edges, ", ", big_buffer);
       meta_topic (META_DEBUG_EDGE_RESISTANCE,
-                  "Xinerama edges for resistance: %s\n", big_buffer);
+                  "Monitor edges for resistance: %s\n", big_buffer);
 
       meta_rectangle_edge_list_to_string (screen_edges, ", ", big_buffer);
       meta_topic (META_DEBUG_EDGE_RESISTANCE,
@@ -807,7 +812,7 @@ cache_edges (MetaDisplay *display,
           tmp = window_edges;
           break;
         case 1:
-          tmp = xinerama_edges;
+          tmp = monitor_edges;
           break;
         case 2:
           tmp = screen_edges;
@@ -875,7 +880,7 @@ cache_edges (MetaDisplay *display,
           tmp = window_edges;
           break;
         case 1:
-          tmp = xinerama_edges;
+          tmp = monitor_edges;
           break;
         case 2:
           tmp = screen_edges;
@@ -938,8 +943,8 @@ initialize_grab_edge_resistance_data (MetaDisplay *display)
   edge_data->bottom_data.keyboard_buildup = 0;
 }
 
-void
-meta_display_compute_resistance_and_snapping_edges (MetaDisplay *display)
+static void
+compute_resistance_and_snapping_edges (MetaDisplay *display)
 {
   GList *stacked_windows;
   GList *cur_window_iter;
@@ -952,6 +957,11 @@ meta_display_compute_resistance_and_snapping_edges (MetaDisplay *display)
    */
   GSList *rem_windows, *rem_win_stacking;
 
+  g_assert (display->grab_window != NULL);
+  meta_topic (META_DEBUG_WINDOW_OPS,
+              "Computing edges to resist-movement or snap-to for %s.\n",
+              display->grab_window->desc);
+
   /*
    * 1st: Get the list of relevant windows, from bottom to top
    */
@@ -1110,12 +1120,12 @@ meta_display_compute_resistance_and_snapping_edges (MetaDisplay *display)
 
   /*
    * 5th: Cache the combination of these edges with the onscreen and
-   * xinerama edges in an array for quick access.  Free the edges since
+   * monitor edges in an array for quick access.  Free the edges since
    * they've been cached elsewhere.
    */
   cache_edges (display,
                edges,
-               display->grab_screen->active_workspace->xinerama_edges,
+               display->grab_screen->active_workspace->monitor_edges,
                display->grab_screen->active_workspace->screen_edges);
   g_list_free (edges);
 

src/core/errors.c

@@ -29,260 +29,38 @@
 #include <stdlib.h>
 #include <gdk/gdk.h>
 
-static int x_error_handler    (Display     *display,
-                               XErrorEvent *error);
-static int x_io_error_handler (Display     *display);
-
-void
-meta_errors_init (void)
-{
-  XSetErrorHandler (x_error_handler);
-  XSetIOErrorHandler (x_io_error_handler);
-}
-
-typedef struct ForeignDisplay ForeignDisplay;
-
-struct ForeignDisplay
-{
-    Display *dpy;
-    ErrorHandler handler;
-    gpointer data;
-    ForeignDisplay *next;
-};
-
-static ForeignDisplay *foreign_displays;
-
-void
-meta_errors_register_foreign_display (Display      *foreign_dpy,
-				      ErrorHandler  handler,
-				      gpointer      data)
-{
-    ForeignDisplay *info = g_new0 (ForeignDisplay, 1);
-    info->dpy = foreign_dpy;
-    info->handler = handler;
-    info->data = data;
-    info->next = foreign_displays;
-    foreign_displays = info;
-}
-
-static void
-meta_error_trap_push_internal (MetaDisplay *display,
-                               gboolean     need_sync)
-{
-  /* GDK resets the error handler on each push */
-  int (* old_error_handler) (Display     *,
-                             XErrorEvent *);
-
-  if (need_sync)
-    {
-      XSync (display->xdisplay, False);
-    }
-  
-  gdk_error_trap_push ();
-
-  /* old_error_handler will just be equal to x_error_handler
-   * for nested traps
-   */
-  old_error_handler = XSetErrorHandler (x_error_handler);
-  
-  /* Replace GDK handler, but save it so we can chain up */
-  if (display->error_trap_handler == NULL)
-    {
-      g_assert (display->error_traps == 0);
-      display->error_trap_handler = old_error_handler;
-      g_assert (display->error_trap_handler != x_error_handler);
-    }
-
-  display->error_traps += 1;
-
-  meta_topic (META_DEBUG_ERRORS, "%d traps remain\n", display->error_traps);
-}
-
-static int
-meta_error_trap_pop_internal  (MetaDisplay *display,
-                               gboolean     need_sync)
-{
-  int result;
-
-  g_assert (display->error_traps > 0);
-
-  if (need_sync)
-    {
-      XSync (display->xdisplay, False);
-    }
-
-  result = gdk_error_trap_pop ();
-
-  display->error_traps -= 1;
-  
-  if (display->error_traps == 0)
-    {
-      /* check that GDK put our handler back; this
-       * assumes that there are no pending GDK traps from GDK itself
-       */
-      
-      int (* restored_error_handler) (Display     *,
-                                      XErrorEvent *);
-
-      restored_error_handler = XSetErrorHandler (x_error_handler);
-
-      /* remove this */
-      display->error_trap_handler = NULL;
-    }
-
-  meta_topic (META_DEBUG_ERRORS, "%d traps\n", display->error_traps);
-  
-  return result;
-}
+/* In GTK+-3.0, the error trapping code was significantly rewritten. The new code
+ * has some neat features (like knowing automatically if a sync is needed or not
+ * and handling errors asynchronously when the error code isn't needed immediately),
+ * but it's basically incompatible with the hacks we played with GTK+-2.0 to
+ * use a custom error handler along with gdk_error_trap_push().
+ *
+ * Since the main point of our custom error trap was to get the error logged
+ * to the right place, with GTK+-3.0 we simply omit our own error handler and
+ * use the GTK+ handling straight-up.
+ * (See https://bugzilla.gnome.org/show_bug.cgi?id=630216 for restoring logging.)
+ */
 
 void
 meta_error_trap_push (MetaDisplay *display)
 {
-  meta_error_trap_push_internal (display, FALSE);
+  gdk_error_trap_push ();
 }
 
 void
-meta_error_trap_pop (MetaDisplay *display,
-                     gboolean     last_request_was_roundtrip)
+meta_error_trap_pop (MetaDisplay *display)
 {
-  gboolean need_sync;
-
-  /* we only have to sync when popping the outermost trap */
-  need_sync = (display->error_traps == 1 && !last_request_was_roundtrip);
-
-  if (need_sync)
-    meta_topic (META_DEBUG_SYNC, "Syncing on error_trap_pop, traps = %d, roundtrip = %d\n",
-                display->error_traps, last_request_was_roundtrip);
-
-  display->error_trap_synced_at_last_pop = need_sync || last_request_was_roundtrip;
-  
-  meta_error_trap_pop_internal (display, need_sync);
+  gdk_error_trap_pop_ignored ();
 }
 
 void
 meta_error_trap_push_with_return (MetaDisplay *display)
 {
-  gboolean need_sync;
-
-  /* We don't sync on push_with_return if there are no traps
-   * currently, because we assume that any errors were either covered
-   * by a previous pop, or were fatal.
-   *
-   * More generally, we don't sync if we were synchronized last time
-   * we popped. This is known to be the case if there are no traps,
-   * but we also keep a flag so we know whether it's the case otherwise.
-   */
-
-  if (!display->error_trap_synced_at_last_pop)
-    need_sync = TRUE;
-  else
-    need_sync = FALSE;
-
-  if (need_sync)
-    meta_topic (META_DEBUG_SYNC, "Syncing on error_trap_push_with_return, traps = %d\n",
-                display->error_traps);
-  
-  meta_error_trap_push_internal (display, FALSE);
+  gdk_error_trap_push ();
 }
 
 int
-meta_error_trap_pop_with_return  (MetaDisplay *display,
-                                  gboolean     last_request_was_roundtrip)
+meta_error_trap_pop_with_return  (MetaDisplay *display)
 {
-  if (!last_request_was_roundtrip)
-    meta_topic (META_DEBUG_SYNC, "Syncing on error_trap_pop_with_return, traps = %d, roundtrip = %d\n",
-                display->error_traps, last_request_was_roundtrip);
-
-  display->error_trap_synced_at_last_pop = TRUE;
-  
-  return meta_error_trap_pop_internal (display,
-                                       !last_request_was_roundtrip);
-}
-
-static int
-x_error_handler (Display     *xdisplay,
-                 XErrorEvent *error)
-{
-  int retval;
-  gchar buf[64];
-  MetaDisplay *display;
-  ForeignDisplay *foreign;
-
-  for (foreign = foreign_displays; foreign != NULL; foreign = foreign->next)
-  {
-      if (foreign->dpy == xdisplay)
-      {
-	  foreign->handler (xdisplay, error, foreign->data);
-
-	  return 0;
-      }
-  }
-  
-  XGetErrorText (xdisplay, error->error_code, buf, 63);  
-
-  display = meta_display_for_x_display (xdisplay);
-
-  /* Display can be NULL here because the compositing manager
-   * has its own Display, but Xlib only has one global error handler
-   */
-  if (display->error_traps > 0)
-    {
-      /* we're in an error trap, chain to the trap handler
-       * saved from GDK
-       */
-      meta_verbose ("X error: %s serial %ld error_code %d request_code %d minor_code %d)\n",
-                    buf,
-                    error->serial, 
-                    error->error_code, 
-                    error->request_code,
-                    error->minor_code);
-
-      g_assert (display->error_trap_handler != NULL);
-      g_assert (display->error_trap_handler != x_error_handler);
-      
-      retval = (* display->error_trap_handler) (xdisplay, error);
-    }
-  else
-    {
-      meta_bug ("Unexpected X error: %s serial %ld error_code %d request_code %d minor_code %d)\n",
-                buf,
-                error->serial, 
-                error->error_code, 
-                error->request_code,
-                error->minor_code);
-
-      retval = 1; /* compiler warning */
-    }
-
-  return retval;
-}
-
-static int
-x_io_error_handler (Display *xdisplay)
-{
-  MetaDisplay *display;
-
-  display = meta_display_for_x_display (xdisplay);
-
-  if (display == NULL)
-    meta_bug ("IO error received for unknown display?\n");
-  
-  if (errno == EPIPE)
-    {
-      meta_warning (_("Lost connection to the display '%s';\n"
-                      "most likely the X server was shut down or you killed/destroyed\n"
-                      "the window manager.\n"),
-                    display->name);
-    }
-  else
-    {
-      meta_warning (_("Fatal IO error %d (%s) on display '%s'.\n"),
-                    errno, g_strerror (errno),
-                    display->name);
-    }
-
-  /* Xlib would force an exit anyhow */
-  exit (1);
-  
-  return 0;
+  return gdk_error_trap_pop ();
 }

src/core/frame.c

@@ -153,7 +153,7 @@ meta_window_ensure_frame (MetaWindow *window)
                    window->rect.x,
                    window->rect.y);
   /* FIXME handle this error */
-  meta_error_trap_pop (window->display, FALSE);
+  meta_error_trap_pop (window->display);
   
   /* stick frame to the window */
   window->frame = frame;
@@ -217,7 +217,7 @@ meta_window_destroy_frame (MetaWindow *window)
                     */
                    window->frame->rect.x,
                    window->frame->rect.y);
-  meta_error_trap_pop (window->display, FALSE);
+  meta_error_trap_pop (window->display);
 
   meta_ui_destroy_frame_window (window->screen->ui, frame->xwindow);
 
@@ -276,7 +276,7 @@ meta_frame_get_flags (MetaFrame *frame)
   if (META_WINDOW_ALLOWS_VERTICAL_RESIZE (frame->window))
     flags |= META_FRAME_ALLOWS_VERTICAL_RESIZE;
   
-  if (frame->window->has_focus)
+  if (meta_window_appears_focused (frame->window))
     flags |= META_FRAME_HAS_FOCUS;
 
   if (frame->window->shaded)

src/core/group.c

@@ -104,6 +104,10 @@ meta_group_unref (MetaGroup *group)
     }
 }
 
+/**
+ * meta_window_get_group: (skip)
+ *
+ */
 MetaGroup*
 meta_window_get_group (MetaWindow *window)
 {
@@ -198,6 +202,10 @@ meta_window_shutdown_group (MetaWindow *window)
   remove_window_from_group (window);
 }
 
+/**
+ * meta_display_lookup_group: (skip)
+ *
+ */
 MetaGroup*
 meta_display_lookup_group (MetaDisplay *display,
                            Window       group_leader)
@@ -213,6 +221,12 @@ meta_display_lookup_group (MetaDisplay *display,
   return group;
 }
 
+/**
+ * meta_group_list_windows:
+ * @group: A #MetaGroup
+ *
+ * Returns: (transfer container) (element-type Meta.Window): List of windows
+ */
 GSList*
 meta_group_list_windows (MetaGroup *group)
 {
@@ -263,6 +277,10 @@ meta_group_get_startup_id (MetaGroup *group)
   return group->startup_id;
 }
 
+/**
+ * meta_group_property_notify: (skip)
+ *
+ */
 gboolean
 meta_group_property_notify (MetaGroup  *group,
                             XEvent     *event)

src/core/iconcache.c

@@ -241,7 +241,7 @@ read_rgb_icon (MetaDisplay   *display,
 			       0, G_MAXLONG,
 			       False, XA_CARDINAL, &type, &format, &nitems,
 			       &bytes_after, &data);
-  err = meta_error_trap_pop_with_return (display, TRUE);
+  err = meta_error_trap_pop_with_return (display);
 
   if (err != Success ||
       result != Success)
@@ -394,21 +394,19 @@ try_pixmap_and_mask (MetaDisplay *display,
 
   get_pixmap_geometry (display, src_pixmap, &w, &h, NULL);
 
-  unscaled = meta_gdk_pixbuf_get_from_pixmap (NULL,
-                                              src_pixmap,
-                                              0, 0, 0, 0,
+  unscaled = meta_gdk_pixbuf_get_from_pixmap (src_pixmap,
+                                              0, 0,
                                               w, h);
 
   if (unscaled && src_mask != None)
     {
       get_pixmap_geometry (display, src_mask, &w, &h, NULL);
-      mask = meta_gdk_pixbuf_get_from_pixmap (NULL,
-                                              src_mask,
-                                              0, 0, 0, 0,
+      mask = meta_gdk_pixbuf_get_from_pixmap (src_mask,
+                                              0, 0,
                                               w, h);
     }
 
-  meta_error_trap_pop (display, FALSE);
+  meta_error_trap_pop (display);
 
   if (mask)
     {
@@ -484,7 +482,7 @@ get_kwm_win_icon (MetaDisplay *display,
 			       &bytes_after, &data);
   icons = (Pixmap *)data;
 
-  err = meta_error_trap_pop_with_return (display, TRUE);
+  err = meta_error_trap_pop_with_return (display);
   if (err != Success ||
       result != Success)
     return;

src/core/keybindings-private.h

@@ -45,7 +45,7 @@ gboolean meta_window_grab_all_keys          (MetaWindow  *window,
                                              guint32      timestamp);
 void     meta_window_ungrab_all_keys        (MetaWindow  *window,
                                              guint32      timestamp);
-void     meta_display_process_key_event     (MetaDisplay *display,
+gboolean meta_display_process_key_event     (MetaDisplay *display,
                                              MetaWindow  *window,
                                              XEvent      *event);
 void     meta_set_keybindings_disabled      (gboolean     setting);

src/core/keybindings.c

@@ -470,16 +470,16 @@ regrab_key_bindings (MetaDisplay *display)
       
       tmp = tmp->next;
     }
-  meta_error_trap_pop (display, FALSE);
+  meta_error_trap_pop (display);
 
   g_slist_free (windows);
 }
 
-static MetaKeyBindingAction
-display_get_keybinding_action (MetaDisplay  *display,
-                               unsigned int  keysym,
-                               unsigned int  keycode,
-                               unsigned long mask)
+static MetaKeyBinding *
+display_get_keybinding (MetaDisplay  *display,
+                        unsigned int  keysym,
+                        unsigned int  keycode,
+                        unsigned long mask)
 {
   int i;
 
@@ -490,13 +490,40 @@ display_get_keybinding_action (MetaDisplay  *display,
           display->key_bindings[i].keycode == keycode &&
           display->key_bindings[i].mask == mask)
         {
-          return meta_prefs_get_keybinding_action (display->key_bindings[i].name);
+          return &display->key_bindings[i];
         }
       
       --i;
     }
 
-  return META_KEYBINDING_ACTION_NONE;
+  return NULL;
+}
+
+/**
+ * meta_display_get_keybinding_action:
+ * @display: A #MetaDisplay
+ * @keycode: Raw keycode
+ * @mask: Event mask
+ *
+ * Returns: The action that should be taken for the given key, or
+ * %META_KEYBINDING_ACTION_NONE.
+ */
+MetaKeyBindingAction
+meta_display_get_keybinding_action (MetaDisplay  *display,
+                                    unsigned int  keycode,
+                                    unsigned long mask)
+{
+  MetaKeyBinding *binding;
+  KeySym keysym;
+
+  keysym = XKeycodeToKeysym (display->xdisplay, keycode, 0);
+  mask = mask & 0xff & ~display->ignored_modifier_mask;
+  binding = display_get_keybinding (display, keysym, keycode, mask);
+
+  if (binding)
+    return meta_prefs_get_keybinding_action (binding->name);
+  else
+    return META_KEYBINDING_ACTION_NONE;
 }
 
 void
@@ -673,7 +700,7 @@ meta_change_keygrab (MetaDisplay *display,
         {
           int result;
           
-          result = meta_error_trap_pop_with_return (display, FALSE);
+          result = meta_error_trap_pop_with_return (display);
           
           if (grab && result != Success)
             {      
@@ -689,7 +716,7 @@ meta_change_keygrab (MetaDisplay *display,
       ++ignored_mask;
     }
 
-  meta_error_trap_pop (display, FALSE);
+  meta_error_trap_pop (display);
 }
 
 static void
@@ -731,7 +758,7 @@ grab_keys (MetaKeyBinding *bindings,
       ++i;
     }
 
-  meta_error_trap_pop (display, FALSE);
+  meta_error_trap_pop (display);
 }
 
 static void
@@ -750,14 +777,14 @@ ungrab_all_keys (MetaDisplay *display,
     {
       int result;
       
-      result = meta_error_trap_pop_with_return (display, FALSE);
+      result = meta_error_trap_pop_with_return (display);
       
       if (result != Success)    
         meta_topic (META_DEBUG_KEYBINDINGS,
                     "Ungrabbing all keys on 0x%lx failed\n", xwindow);
     }
   else
-    meta_error_trap_pop (display, FALSE);
+    meta_error_trap_pop (display);
 }
 
 void
@@ -889,7 +916,7 @@ grab_keyboard (MetaDisplay *display,
   
   if (grab_status != GrabSuccess)
     {
-      meta_error_trap_pop_with_return (display, TRUE);
+      meta_error_trap_pop_with_return (display);
       meta_topic (META_DEBUG_KEYBINDINGS,
                   "XGrabKeyboard() returned failure status %s time %u\n",
                   grab_status_to_string (grab_status),
@@ -898,7 +925,7 @@ grab_keyboard (MetaDisplay *display,
     }
   else
     {
-      result = meta_error_trap_pop_with_return (display, TRUE);
+      result = meta_error_trap_pop_with_return (display);
       if (result != Success)
         {
           meta_topic (META_DEBUG_KEYBINDINGS,
@@ -921,7 +948,7 @@ ungrab_keyboard (MetaDisplay *display, guint32 timestamp)
               "Ungrabbing keyboard with timestamp %u\n",
               timestamp);
   XUngrabKeyboard (display->xdisplay, timestamp);
-  meta_error_trap_pop (display, FALSE);
+  meta_error_trap_pop (display);
 }
 
 gboolean
@@ -1197,6 +1224,45 @@ process_overlay_key (MetaDisplay *display,
   return TRUE;
 }
 
+static void
+invoke_handler (MetaDisplay    *display,
+                MetaScreen     *screen,
+                MetaKeyHandler *handler,
+                MetaWindow     *window,
+                XEvent         *event,
+                MetaKeyBinding *binding)
+
+{
+  if (handler->func)
+    (* handler->func) (display, screen,
+                       handler->flags & BINDING_PER_WINDOW ?
+                           window : NULL,
+                       event,
+                       binding,
+                       handler->user_data);
+  else
+    (* handler->default_func) (display, screen,
+                               handler->flags & BINDING_PER_WINDOW ?
+                                   window: NULL,
+                               event,
+                               binding,
+                               NULL);
+}
+
+static void
+invoke_handler_by_name (MetaDisplay    *display,
+                        MetaScreen     *screen,
+                        const char     *handler_name,
+                        MetaWindow     *window,
+                        XEvent         *event)
+{
+  MetaKeyHandler *handler;
+
+  handler = find_handler (key_handlers, handler_name);
+  if (handler)
+    invoke_handler (display, screen, handler, window, event, NULL);
+}
+
 /* now called from only one place, may be worth merging */
 static gboolean
 process_event (MetaKeyBinding       *bindings,
@@ -1253,20 +1319,7 @@ process_event (MetaKeyBinding       *bindings,
        */
       display->allow_terminal_deactivation = TRUE;
 
-      if (handler->func)
-        (* handler->func) (display, screen,
-                           bindings[i].handler->flags & BINDING_PER_WINDOW ?
-                           window: NULL,
-                           event,
-                           &bindings[i],
-                           handler->user_data);
-      else
-        (* handler->default_func) (display, screen,
-                           bindings[i].handler->flags & BINDING_PER_WINDOW ?
-                           window: NULL,
-                           event,
-                           &bindings[i],
-                           NULL);
+      invoke_handler (display, screen, handler, window, event, &bindings[i]);
 
       return TRUE;
     }
@@ -1281,13 +1334,16 @@ process_event (MetaKeyBinding       *bindings,
  * right. This cannot cause infinite recursion because we never call
  * ourselves when there wasn't a grab, and we always clear the grab
  * first; the invariant is enforced using an assertion. See #112560.
+ *
+ * The return value is whether we handled the key event.
+ *
  * FIXME: We need to prove there are no race conditions here.
  * FIXME: Does it correctly handle alt-Tab being followed by another
  * grabbing keypress without letting go of alt?
  * FIXME: An iterative solution would probably be simpler to understand
  * (and help us solve the other fixmes).
  */
-void
+gboolean
 meta_display_process_key_event (MetaDisplay *display,
                                 MetaWindow  *window,
                                 XEvent      *event)
@@ -1303,7 +1359,7 @@ meta_display_process_key_event (MetaDisplay *display,
                 all_bindings_disabled ? ReplayKeyboard : AsyncKeyboard,
                 event->xkey.time);
   if (all_bindings_disabled)
-    return;
+    return FALSE;
 
   /* if key event was on root window, we have a shortcut */
   screen = meta_display_screen_for_root (display, event->xkey.window);
@@ -1314,12 +1370,11 @@ meta_display_process_key_event (MetaDisplay *display,
                                               event->xany.window);
 
   if (screen == NULL)
-    return; /* event window is destroyed */
+    return FALSE; /* event window is destroyed */
   
   /* ignore key events on popup menus and such. */
-  if (window == NULL &&
-      meta_ui_window_is_widget (screen->ui, event->xany.window))
-    return;
+  if (meta_ui_window_is_widget (screen->ui, event->xany.window))
+    return FALSE;
   
   /* window may be NULL */
   
@@ -1339,7 +1394,7 @@ meta_display_process_key_event (MetaDisplay *display,
   if (all_keys_grabbed)
     {
       if (display->grab_op == META_GRAB_OP_NONE)
-        return;
+        return TRUE;
       /* If we get here we have a global grab, because
         * we're in some special keyboard mode such as window move
         * mode.
@@ -1416,18 +1471,20 @@ meta_display_process_key_event (MetaDisplay *display,
                       "Ending grab op %u on key event sym %s\n",
                       display->grab_op, XKeysymToString (keysym));
           meta_display_end_grab_op (display, event->xkey.time);
-          return;
         }
-      }
+
+      return TRUE;
+    }
   
   handled = process_overlay_key (display, screen, event, keysym);
+  if (handled)
+    return TRUE;
   
   /* Do the normal keybindings */
-  if (!handled)
-    process_event (display->key_bindings,
-                   display->n_key_bindings,
-                   display, screen, window, event, keysym,
-                   !all_keys_grabbed && window);
+  return process_event (display->key_bindings,
+                        display->n_key_bindings,
+                        display, screen, window, event, keysym,
+                        !all_keys_grabbed && window);
 }
 
 static gboolean
@@ -1980,6 +2037,7 @@ process_tab_grab (MetaDisplay *display,
                   XEvent      *event,
                   KeySym       keysym)
 {
+  MetaKeyBinding *binding;
   MetaKeyBindingAction action;
   gboolean popup_not_showing;
   gboolean backward;
@@ -1989,79 +2047,84 @@ process_tab_grab (MetaDisplay *display,
   if (screen != display->grab_screen)
     return FALSE;
 
-  action = display_get_keybinding_action (display,
-                                          keysym,
-                                          event->xkey.keycode,
-                                          display->grab_mask);
+  binding = display_get_keybinding (display,
+                                    keysym,
+                                    event->xkey.keycode,
+                                    display->grab_mask);
+  if (binding)
+    action = meta_prefs_get_keybinding_action (binding->name);
+  else
+    action = META_KEYBINDING_ACTION_NONE;
 
   /*
    * If there is no tab_pop up object, i.e., there is some custom handler
    * implementing Alt+Tab & Co., we call this custom handler; we do not
    * mess about with the grab, as that is up to the handler to deal with.
    */
-  if (!screen->tab_handler)
+  if (!screen->tab_popup)
     {
-      MetaKeyHandler *handler = NULL;
-      const gchar    *handler_name = NULL;
+      if (event->type == KeyRelease)
+        {
+          if (end_keyboard_grab (display, event->xkey.keycode))
+            {
+              invoke_handler_by_name (display, screen, "tab_popup_select", NULL, event);
+
+              /* We return FALSE to end the grab; if the handler ended the grab itself
+               * that will be a noop. If the handler didn't end the grab, then it's a
+               * safety measure to prevent a stuck grab.
+               */
+              return FALSE;
+            }
+
+          return TRUE;
+        }
 
       switch (action)
         {
         case META_KEYBINDING_ACTION_CYCLE_PANELS:
-          handler_name = "cycle_group";
-          break;
         case META_KEYBINDING_ACTION_CYCLE_WINDOWS:
-          handler_name = "cycle_windows";
-          break;
         case META_KEYBINDING_ACTION_CYCLE_PANELS_BACKWARD:
-          handler_name = "cycle_panels_backward";
-          break;
         case META_KEYBINDING_ACTION_CYCLE_WINDOWS_BACKWARD:
-          handler_name = "cycle_windows_backward";
-          break;
         case META_KEYBINDING_ACTION_SWITCH_PANELS:
-          handler_name = "switch_panels";
-          break;
         case META_KEYBINDING_ACTION_SWITCH_WINDOWS:
-          handler_name = "switch_windows";
-          break;
         case META_KEYBINDING_ACTION_SWITCH_PANELS_BACKWARD:
-          handler_name = "switch_panels_backward";
-          break;
         case META_KEYBINDING_ACTION_SWITCH_WINDOWS_BACKWARD:
-          handler_name = "switch_windows_backward";
-          break;
         case META_KEYBINDING_ACTION_CYCLE_GROUP:
-          handler_name = "cycle_group";
-          break;
         case META_KEYBINDING_ACTION_CYCLE_GROUP_BACKWARD:
-          handler_name = "cycle_group_backward";
-          break;
         case META_KEYBINDING_ACTION_SWITCH_GROUP:
-          handler_name = "switch_group";
-          break;
         case META_KEYBINDING_ACTION_SWITCH_GROUP_BACKWARD:
-          handler_name = "switch_group_backward";
-          break;
-        default:
-          /*
-           * This is the case when the Alt key is released; we preserve
-           * the grab, as it is up to the custom implementaiton to free it
-           * (a plugin can catch this in their xevent_filter function).
+          /* These are the tab-popup bindings. If a custom Alt-Tab implementation
+           * is in effect, we expect it to want to handle all of these as a group
+           *
+           * If there are some of them that the custom implementation didn't
+           * handle, we treat them as "unbound" for the duration - running the
+           * normal handlers could get us into trouble.
            */
-          return TRUE;
+          if (binding->handler &&
+              binding->handler->func &&
+              binding->handler->func != binding->handler->default_func)
+            {
+              invoke_handler (display, screen, binding->handler, NULL, event, binding);
+              return TRUE;
+            }
+          break;
+        case META_KEYBINDING_ACTION_NONE:
+          {
+            /*
+             * If this is simply user pressing the Shift key, we do not want
+             * to cancel the grab.
+             */
+            if (is_modifier (display, event->xkey.keycode))
+              return TRUE;
+          }
+
+        default:
+          break;
         }
 
-      /*
-       * We do not want to actually call the handler, we just want to ensure
-       * that if a custom handler is installed, we do not release the grab here.
-       * The handler will get called as normal in the process_event() function.
-       */
-      handler = find_handler (key_handlers, handler_name);
-
-      if (!handler || !handler->func || handler->func == handler->default_func)
-        return FALSE;
-
-      return TRUE;
+      /* Some unhandled key press */
+      invoke_handler_by_name (display, screen, "tab_popup_cancel", NULL, event);
+      return FALSE;
     }
 
   if (event->type == KeyRelease &&
@@ -2506,7 +2569,7 @@ handle_move_to_corner_backend (MetaDisplay    *display,
   int new_x, new_y;
   int frame_width, frame_height;
 
-  meta_window_get_work_area_all_xineramas (window, &work_area);
+  meta_window_get_work_area_all_monitors (window, &work_area);
   meta_window_get_outer_rect (window, &outer);
   meta_window_get_position (window, &orig_x, &orig_y);
 
@@ -2638,7 +2701,7 @@ handle_move_to_center  (MetaDisplay    *display,
   int orig_x, orig_y;
   int frame_width, frame_height;
 
-  meta_window_get_work_area_all_xineramas (window, &work_area);
+  meta_window_get_work_area_all_monitors (window, &work_area);
   meta_window_get_outer_rect (window, &outer);
   meta_window_get_position (window, &orig_x, &orig_y);
 
@@ -2713,10 +2776,9 @@ process_workspace_switch_grab (MetaDisplay *display,
       MetaWorkspace *target_workspace;
       MetaKeyBindingAction action;
 
-      action = display_get_keybinding_action (display,
-                                              keysym,
-                                              event->xkey.keycode,
-                                              display->grab_mask);
+      action = meta_display_get_keybinding_action (display,
+                                                   event->xkey.keycode,
+                                                   display->grab_mask);
 
       switch (action)
         {
@@ -2836,7 +2898,7 @@ handle_panel (MetaDisplay    *display,
 	      StructureNotifyMask,
 	      (XEvent*) &ev);
 
-  meta_error_trap_pop (display, FALSE);
+  meta_error_trap_pop (display);
 }
 
 static void
@@ -3043,6 +3105,27 @@ handle_cycle (MetaDisplay    *display,
                     backwards, FALSE);
 }
 
+static void
+handle_tab_popup_select (MetaDisplay    *display,
+                         MetaScreen     *screen,
+                         MetaWindow     *window,
+                         XEvent         *event,
+                         MetaKeyBinding *binding,
+                         gpointer        dummy)
+{
+  /* Stub for custom handlers; no default implementation */
+}
+
+static void
+handle_tab_popup_cancel (MetaDisplay    *display,
+                         MetaScreen     *screen,
+                         MetaWindow     *window,
+                         XEvent         *event,
+                         MetaKeyBinding *binding,
+                         gpointer        dummy)
+{
+  /* Stub for custom handlers; no default implementation */
+}
 
 static void
 handle_toggle_fullscreen  (MetaDisplay    *display,
@@ -3462,6 +3545,10 @@ meta_keybindings_set_custom_handler (const gchar        *name,
   return TRUE;
 }
 
+/**
+ * meta_keybindings_switch_window: (skip)
+ *
+ */
 void
 meta_keybindings_switch_window (MetaDisplay    *display,
                                 MetaScreen     *screen,

src/core/main.c

@@ -68,13 +68,14 @@
 #include <fcntl.h>
 #include <locale.h>
 #include <time.h>
+#include <unistd.h>
 
 #include <clutter/clutter.h>
 #include <clutter/x11/clutter-x11.h>
 
 #ifdef HAVE_INTROSPECTION
 #include <girepository.h>
-#include "compositor/mutter-plugin-manager.h"
+#include "compositor/meta-plugin-manager.h"
 #endif
 
 /**
@@ -124,11 +125,13 @@ log_handler (const gchar   *log_domain,
 static void
 version (void)
 {
+  const int latest_year = 2010;
+
   g_print (_("mutter %s\n"
-             "Copyright (C) 2001-2008 Havoc Pennington, Red Hat, Inc., and others\n"
+             "Copyright (C) 2001-%d Havoc Pennington, Red Hat, Inc., and others\n"
              "This is free software; see the source for copying conditions.\n"
              "There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n"),
-           VERSION);
+           VERSION, latest_year);
   exit (0);
 }
 
@@ -226,6 +229,7 @@ typedef struct
   gboolean sync;
   gboolean composite;
   gboolean no_composite;
+  gboolean no_force_fullscreen;
   gboolean no_tab_popup;
   gchar *introspect;
 } MetaArguments;
@@ -304,6 +308,12 @@ meta_parse_options (int *argc, char ***argv,
       N_("Turn compositing off"),
       NULL
     },
+    {
+      "no-force-fullscreen", 0, COMPOSITE_OPTS_FLAGS, G_OPTION_ARG_NONE,
+      &my_args.no_force_fullscreen,
+      N_("Don't make fullscreen windows that are maximized and have no decorations"),
+      NULL
+    },
     {
       "mutter-plugins", 0, 0, G_OPTION_ARG_STRING,
       &my_args.mutter_plugins,
@@ -331,6 +341,7 @@ meta_parse_options (int *argc, char ***argv,
   ctx = g_option_context_new (NULL);
   g_option_context_add_main_entries (ctx, options, "mutter");
   g_option_context_add_group (ctx, clutter_get_option_group_without_init ());
+  g_option_context_add_group (ctx, cogl_get_option_group ());
 
   if (!g_option_context_parse (ctx, argc, argv, &error))
     {
@@ -390,7 +401,7 @@ static GSourceFuncs event_funcs = {
 static void
 meta_clutter_init (GOptionContext *ctx, int *argc, char ***argv)
 {
-  clutter_x11_set_display (gdk_display);
+  clutter_x11_set_display (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()));
   clutter_x11_disable_event_retrieval ();
   
   if (CLUTTER_INIT_SUCCESS == clutter_init (argc, argv))
@@ -427,43 +438,37 @@ meta_select_display (gchar *display_name)
 static void
 meta_finalize (void)
 {
-  meta_display_close (meta_get_display (),
-                      CurrentTime); /* I doubt correct timestamps matter here */
+  MetaDisplay *display = meta_get_display ();
+
+  if (display)
+    meta_display_close (display,
+                        CurrentTime); /* I doubt correct timestamps matter here */
 
   meta_session_shutdown ();
 }
 
+static int sigterm_pipe_fds[2] = { -1, -1 };
+
 static void
 sigterm_handler (int signum)
 {
-  meta_finalize ();
-
-  exit (meta_exit_code);
-}
-
-static guint sigchld_signal_id = 0;
-
-static void
-sigchld_handler (int signum, siginfo_t *info, void *context)
-{
-  int stat;
-
-  if (info->si_code == CLD_EXITED)
+  if (sigterm_pipe_fds[1] >= 0)
     {
-      g_signal_emit (sigchld_nexus, sigchld_signal_id, 0,
-                     info->si_status,
-                     GINT_TO_POINTER (info->si_pid));
+      int dummy;
+
+      dummy = write (sigterm_pipe_fds[1], "", 1);
+      close (sigterm_pipe_fds[1]);
+      sigterm_pipe_fds[1] = -1;
     }
-
-  g_signal_handlers_disconnect_matched (sigchld_nexus,
-                                        G_SIGNAL_MATCH_DATA,
-                                        sigchld_signal_id,
-                                        0, NULL, NULL,
-                                        GINT_TO_POINTER (info->si_pid));
-
-  waitpid (info->si_pid, &stat, WNOHANG);
 }
-    
+
+static gboolean
+on_sigterm (void)
+{
+  meta_quit (META_EXIT_SUCCESS);
+  return FALSE;
+}
+
 /**
  * This is where the story begins. It parses commandline options and
  * environment variables, sets up the screen, hands control off to
@@ -486,8 +491,9 @@ main (int argc, char **argv)
     "Pango", "GLib-GObject", "GThread"
   };
   guint i;
+  GIOChannel *channel;
   GOptionContext *ctx;
-  
+
   if (!g_thread_supported ())
     g_thread_init (NULL);
   
@@ -509,29 +515,21 @@ main (int argc, char **argv)
                 g_strerror (errno));
 #endif
 
+  if (pipe (sigterm_pipe_fds) != 0)
+    g_printerr ("Failed to create SIGTERM pipe: %s\n",
+                g_strerror (errno));
+
+  channel = g_io_channel_unix_new (sigterm_pipe_fds[0]);
+  g_io_channel_set_flags (channel, G_IO_FLAG_NONBLOCK, NULL);
+  g_io_add_watch (channel, G_IO_IN, (GIOFunc) on_sigterm, NULL);
+  g_io_channel_set_close_on_unref (channel, TRUE);
+  g_io_channel_unref (channel);
+
   act.sa_handler = &sigterm_handler;
   if (sigaction (SIGTERM, &act, NULL) < 0)
     g_printerr ("Failed to register SIGTERM handler: %s\n",
 		g_strerror (errno));
 
-  sigchld_nexus = g_object_new (META_TYPE_NEXUS, NULL);
-
-  sigchld_signal_id =
-    g_signal_new ("sigchld", META_TYPE_NEXUS,
-                  G_SIGNAL_RUN_LAST,
-                  0, NULL, NULL,
-                  g_cclosure_marshal_VOID__UINT_POINTER,
-                  G_TYPE_NONE,
-                  2,
-                  G_TYPE_UINT, G_TYPE_POINTER);
-  
-  act.sa_flags = SA_NOCLDSTOP | SA_SIGINFO;
-  act.sa_handler = SIG_DFL;
-  act.sa_sigaction = &sigchld_handler;
-  if (sigaction (SIGCHLD, &act, NULL) < 0)
-    g_printerr ("Failed to register SIGCHLD handler: %s\n",
-		g_strerror (errno));
-
   if (g_getenv ("MUTTER_VERBOSE"))
     meta_set_verbose (TRUE);
   if (g_getenv ("MUTTER_DEBUG"))
@@ -588,8 +586,8 @@ main (int argc, char **argv)
            * is initialized at this point, and we don't plan to run any real
            * plugin code.
            */
-          MutterPluginManager *mgr = mutter_plugin_manager_new (NULL);
-          if (!mutter_plugin_manager_load (mgr))
+          MetaPluginManager *mgr = meta_plugin_manager_get_default ();
+          if (!meta_plugin_manager_load (mgr))
             g_critical ("failed to load plugins");
         }
       if (!g_irepository_dump (meta_args.introspect, &error))
@@ -625,9 +623,6 @@ main (int argc, char **argv)
 
   g_option_context_free (ctx);
 
-  /* must be after UI init so we can override GDK handlers */
-  meta_errors_init ();
-
   /* Load prefs */
   meta_prefs_init ();
   meta_prefs_add_listener (prefs_changed_callback, NULL);
@@ -713,6 +708,9 @@ main (int argc, char **argv)
   if (meta_args.composite || meta_args.no_composite)
     meta_prefs_set_compositing_manager (meta_args.composite);
 
+  if (meta_args.no_force_fullscreen)
+    meta_prefs_set_force_fullscreen (FALSE);
+
   if (meta_args.no_tab_popup)
     {
       meta_prefs_override_no_tab_popup (TRUE);

src/core/place.c

@@ -26,6 +26,7 @@
 
 #include <config.h>
 
+#include "boxes-private.h"
 #include "place.h"
 #include "workspace.h"
 #include "prefs.h"
@@ -104,7 +105,7 @@ find_next_cascade (MetaWindow *window,
   int window_width, window_height;
   int cascade_stage;
   MetaRectangle work_area;
-  const MetaXineramaScreenInfo* current;
+  const MetaMonitorInfo* current;
   
   sorted = g_list_copy (windows);
   sorted = g_list_sort (sorted, northwestcmp);
@@ -135,8 +136,8 @@ find_next_cascade (MetaWindow *window,
    * of NW corner of window frame.
    */
 
-  current = meta_screen_get_current_xinerama (window->screen);
-  meta_window_get_work_area_for_xinerama (window, current->number, &work_area);
+  current = meta_screen_get_current_monitor (window->screen);
+  meta_window_get_work_area_for_monitor (window, current->number, &work_area);
 
   cascade_x = MAX (0, work_area.x);
   cascade_y = MAX (0, work_area.y);
@@ -257,7 +258,7 @@ find_most_freespace (MetaWindow *window,
   frame_size_left = fgeom ? fgeom->left_width : 0;
   frame_size_top  = fgeom ? fgeom->top_height : 0;
 
-  meta_window_get_work_area_current_xinerama (focus_window, &work_area);
+  meta_window_get_work_area_current_monitor (focus_window, &work_area);
   meta_window_get_outer_rect (focus_window, &avoid);
   meta_window_get_outer_rect (window, &outer);
 
@@ -508,7 +509,7 @@ find_first_fit (MetaWindow *window,
                 MetaFrameGeometry *fgeom,
                 /* visible windows on relevant workspaces */
                 GList      *windows,
-		int         xinerama,
+		int         monitor,
                 int         x,
                 int         y,
                 int        *new_x,
@@ -551,16 +552,16 @@ find_first_fit (MetaWindow *window,
 
 #ifdef WITH_VERBOSE_MODE
     {
-      char xinerama_location_string[RECT_LENGTH];
-      meta_rectangle_to_string (&window->screen->xinerama_infos[xinerama].rect,
-                                xinerama_location_string);
+      char monitor_location_string[RECT_LENGTH];
+      meta_rectangle_to_string (&window->screen->monitor_infos[monitor].rect,
+                                monitor_location_string);
       meta_topic (META_DEBUG_XINERAMA,
-		  "Natural xinerama is %s\n",
-		  xinerama_location_string);
+		  "Natural monitor is %s\n",
+		  monitor_location_string);
     }
 #endif
 
-    meta_window_get_work_area_for_xinerama (window, xinerama, &work_area);
+    meta_window_get_work_area_for_monitor (window, monitor, &work_area);
 
     center_tile_rect_in_area (&rect, &work_area);
 
@@ -658,7 +659,7 @@ meta_window_place (MetaWindow        *window,
                    int               *new_y)
 {
   GList *windows;
-  const MetaXineramaScreenInfo *xi;
+  const MetaMonitorInfo *xi;
 
   /* frame member variables should NEVER be used in here, only
    * MetaFrameGeometry. But remember fgeom == NULL
@@ -810,11 +811,11 @@ meta_window_place (MetaWindow        *window,
       window->type == META_WINDOW_MODAL_DIALOG ||
       window->type == META_WINDOW_SPLASHSCREEN)
     {
-      /* Center on current xinerama (i.e. on current monitor) */
+      /* Center on current monitor */
       int w, h;
 
       /* Warning, this function is a round trip! */
-      xi = meta_screen_get_current_xinerama (window->screen);
+      xi = meta_screen_get_current_monitor (window->screen);
 
       w = xi->rect.width;
       h = xi->rect.height;
@@ -825,7 +826,7 @@ meta_window_place (MetaWindow        *window,
       x += xi->rect.x;
       y += xi->rect.y;
       
-      meta_topic (META_DEBUG_PLACEMENT, "Centered window %s on screen %d xinerama %d\n",
+      meta_topic (META_DEBUG_PLACEMENT, "Centered window %s on screen %d monitor %d\n",
                   window->desc, window->screen->number, xi->number);
 
       goto done_check_denied_focus;
@@ -859,7 +860,7 @@ meta_window_place (MetaWindow        *window,
   }
 
   /* Warning, this is a round trip! */
-  xi = meta_screen_get_current_xinerama (window->screen);
+  xi = meta_screen_get_current_monitor (window->screen);
   
   /* "Origin" placement algorithm */
   x = xi->rect.x;
@@ -880,9 +881,9 @@ meta_window_place (MetaWindow        *window,
       MetaRectangle workarea;
       MetaRectangle outer;
 
-      meta_window_get_work_area_for_xinerama (window,
-                                              xi->number,
-                                              &workarea);      
+      meta_window_get_work_area_for_monitor (window,
+                                             xi->number,
+                                             &workarea);      
       meta_window_get_outer_rect (window, &outer);
       
       /* If the window is bigger than the screen, then automaximize.  Do NOT

src/core/prefs.c

@@ -27,6 +27,7 @@
 #include "prefs.h"
 #include "ui.h"
 #include "util.h"
+#include "compositor/meta-plugin-manager.h"
 #ifdef HAVE_GCONF
 #include <gconf/gconf-client.h>
 #endif
@@ -52,6 +53,7 @@
 #define KEY_COMPOSITOR "/apps/metacity/general/compositing_manager"
 #define KEY_GNOME_ACCESSIBILITY "/desktop/gnome/interface/accessibility"
 
+#define KEY_COMMAND_DIRECTORY "/apps/metacity/keybinding_commands"
 #define KEY_COMMAND_PREFIX "/apps/metacity/keybinding_commands/command_"
 
 #define KEY_TERMINAL_DIR "/desktop/gnome/applications/terminal"
@@ -62,6 +64,7 @@
 #define KEY_WINDOW_BINDINGS_PREFIX "/apps/metacity/window_keybindings"
 #define KEY_LIST_BINDINGS_SUFFIX "_list"
 
+#define KEY_WORKSPACE_NAME_DIRECTORY "/apps/metacity/workspace_names"
 #define KEY_WORKSPACE_NAME_PREFIX "/apps/metacity/workspace_names/name_"
 
 #define KEY_CLUTTER_PLUGINS  "/apps/mutter/general/clutter_plugins"
@@ -83,6 +86,7 @@ static MetaVirtualModifier mouse_button_mods = Mod1Mask;
 static MetaFocusMode focus_mode = META_FOCUS_MODE_CLICK;
 static MetaFocusNewWindows focus_new_windows = META_FOCUS_NEW_WINDOWS_SMART;
 static gboolean raise_on_click = TRUE;
+static gboolean attach_modal_dialogs = FALSE;
 static char* current_theme = NULL;
 static int num_workspaces = 4;
 static MetaActionTitlebar action_double_click_titlebar = META_ACTION_TITLEBAR_TOGGLE_MAXIMIZE;
@@ -100,6 +104,8 @@ static char *cursor_theme = NULL;
 static int   cursor_size = 24;
 static gboolean compositing_manager = FALSE;
 static gboolean resize_with_right_button = FALSE;
+static gboolean side_by_side_tiling = FALSE;
+static gboolean force_fullscreen = TRUE;
 
 static MetaVisualBellType visual_bell_type = META_VISUAL_BELL_FULLSCREEN_FLASH;
 static MetaButtonLayout button_layout;
@@ -121,18 +127,30 @@ static gboolean no_tab_popup = FALSE;
 #ifdef HAVE_GCONF
 static gboolean handle_preference_update_enum (const gchar *key, GConfValue *value);
 
-static gboolean update_key_binding     (const char *name,
+static char *binding_name (const char *gconf_key);
+
+static gboolean update_key_binding     (const char *key,
                                         const char *value);
-static gboolean find_and_update_list_binding (MetaKeyPref *bindings,
-                                              const char  *name,
-                                              GSList      *value);
-static gboolean update_key_list_binding (const char *name,
-                                         GSList      *value);
+typedef enum
+  {
+    META_LIST_OF_STRINGS,
+    META_LIST_OF_GCONFVALUE_STRINGS
+  } MetaStringListType;
+
+static gboolean find_and_update_list_binding (MetaKeyPref       *bindings,
+                                              const char        *key,
+                                              GSList            *value,
+                                              MetaStringListType type_of_value);
+static gboolean update_key_list_binding (const char         *key,
+                                         GSList             *value,
+                                         MetaStringListType  type_of_value);
 static gboolean update_command            (const char  *name,
                                            const char  *value);
 static gboolean update_workspace_name     (const char  *name,
                                            const char  *value);
 
+static void notify_new_value (const char *key,
+                              GConfValue *value);
 static void change_notify (GConfClient    *client,
                            guint           cnxn_id,
                            GConfEntry     *entry,
@@ -142,14 +160,8 @@ static char* gconf_key_for_workspace_name (int i);
 
 static void queue_changed (MetaPreference  pref);
 
-typedef enum
-  {
-    META_LIST_OF_STRINGS,
-    META_LIST_OF_GCONFVALUE_STRINGS
-  } MetaStringListType;
-
-static gboolean update_list_binding       (MetaKeyPref *binding,
-                                           GSList      *value,
+static gboolean update_list_binding       (MetaKeyPref       *binding,
+                                           GSList            *value,
                                            MetaStringListType type_of_value);
 
 static void     cleanup_error             (GError **error);
@@ -221,7 +233,12 @@ static GConfEnumStringPair symtab_titlebar_action[] =
     { 0, NULL },
   };
 
-/**
+/*
+ * Note that 'gchar *key' is the first element of all these structures;
+ * we count on that below in key_is_used and do_override.
+ */
+
+/*
  * The details of one preference which is constrained to be
  * one of a small number of string values-- in other words,
  * an enumeration.
@@ -234,21 +251,6 @@ static GConfEnumStringPair symtab_titlebar_action[] =
  * been outweighed by the bugs caused when the ordering of the enum
  * strings got out of sync with the actual enum statement.  Also,
  * there is existing library code to use this kind of symbol tables.
- *
- * Other things we might consider doing to clean this up in the
- * future include:
- *
- *   - most of the keys begin with the same prefix, and perhaps we
- *     could assume it if they don't start with a slash
- *
- *   - there are several cases where a single identifier could be used
- *     to generate an entire entry, and perhaps this could be done
- *     with a macro.  (This would reduce clarity, however, and is
- *     probably a bad thing.)
- *
- *   - these types all begin with a gchar* (and contain a MetaPreference)
- *     and we can factor out the repeated code in the handlers by taking
- *     advantage of this using some kind of union arrangement.
  */
 typedef struct
 {
@@ -361,6 +363,11 @@ static MetaEnumPreference preferences_enum[] =
 
 static MetaBoolPreference preferences_bool[] =
   {
+    { "/apps/mutter/general/attach_modal_dialogs",
+      META_PREF_ATTACH_MODAL_DIALOGS,
+      &attach_modal_dialogs,
+      TRUE,
+    },
     { "/apps/metacity/general/raise_on_click",
       META_PREF_RAISE_ON_CLICK,
       &raise_on_click,
@@ -416,6 +423,11 @@ static MetaBoolPreference preferences_bool[] =
       &resize_with_right_button,
       FALSE,
     },
+    { "/apps/metacity/general/side_by_side_tiling",
+      META_PREF_SIDE_BY_SIDE_TILING,
+      &side_by_side_tiling,
+      FALSE,
+    },
     { "/apps/mutter/general/live_hidden_windows",
       META_PREF_LIVE_HIDDEN_WINDOWS,
       &live_hidden_windows,
@@ -489,6 +501,20 @@ static MetaIntPreference preferences_int[] =
     { NULL, 0, NULL, 0, 0, 0, },
   };
 
+/*
+ * This is used to keep track of preferences that have been
+ * repointed to a different GConf key location; we modify the
+ * preferences arrays directly, but we also need to remember
+ * what we have done to handle subsequent overrides correctly.
+ */
+typedef struct
+{
+  gchar *original_key;
+  gchar *new_key;
+} MetaPrefsOverriddenKey;
+
+static GSList *overridden_keys;
+
 static void
 handle_preference_init_enum (void)
 {
@@ -872,6 +898,10 @@ handle_preference_update_int (const gchar *key, GConfValue *value)
 /* Listeners.                                                               */
 /****************************************************************************/
 
+/**
+ * meta_prefs_add_listener: (skip)
+ *
+ */
 void
 meta_prefs_add_listener (MetaPrefsChangedFunc func,
                          gpointer             data)
@@ -885,6 +915,10 @@ meta_prefs_add_listener (MetaPrefsChangedFunc func,
   listeners = g_list_prepend (listeners, l);
 }
 
+/**
+ * meta_prefs_remove_listener: (skip)
+ *
+ */
 void
 meta_prefs_remove_listener (MetaPrefsChangedFunc func,
                             gpointer             data)
@@ -1024,6 +1058,7 @@ meta_prefs_init (void)
 #ifdef HAVE_GCONF
   GError *err = NULL;
   gchar **gconf_dir_cursor;
+  MetaPluginManager *plugin_manager;
   
   if (default_client != NULL)
     return;
@@ -1042,12 +1077,7 @@ meta_prefs_init (void)
       cleanup_error (&err);
     }
 
-  /* Pick up initial values. */
-
-  handle_preference_init_enum ();
-  handle_preference_init_bool ();
-  handle_preference_init_string ();
-  handle_preference_init_int ();
+  /* The plugin list is special and needs to be handled first */
 
   if (!clutter_plugins_overridden)
     clutter_plugins = gconf_client_get_list (default_client, KEY_CLUTTER_PLUGINS,
@@ -1055,6 +1085,18 @@ meta_prefs_init (void)
 
   cleanup_error (&err);
 
+  /* We now initialize plugins so that they can override any preference locations */
+
+  plugin_manager = meta_plugin_manager_get_default ();
+  meta_plugin_manager_load (plugin_manager);
+
+  /* Pick up initial values. */
+
+  handle_preference_init_enum ();
+  handle_preference_init_bool ();
+  handle_preference_init_string ();
+  handle_preference_init_int ();
+
   /* @@@ Is there any reason we don't do the add_dir here? */
   for (gconf_dir_cursor=gconf_dirs_we_are_interested_in;
        *gconf_dir_cursor!=NULL;
@@ -1087,6 +1129,160 @@ meta_prefs_init (void)
   init_workspace_names ();
 }
 
+/* This count on the key being the first element of the
+ * preference structure */
+static gboolean
+key_is_used (void       *prefs,
+             size_t      pref_size,
+             const char *new_key)
+{
+  void *p = prefs;
+
+  while (TRUE)
+    {
+      char **key = p;
+      if (*key == NULL)
+        break;
+
+      if (strcmp (*key, new_key) == 0)
+        return TRUE;
+
+      p = (guchar *)p + pref_size;
+    }
+
+  return FALSE;
+}
+
+static gboolean
+do_override (void       *prefs,
+             size_t      pref_size,
+             const char *search_key,
+             char       *new_key)
+{
+  void *p = prefs;
+
+  while (TRUE)
+    {
+      char **key = p;
+      if (*key == NULL)
+        break;
+
+      if (strcmp (*key, search_key) == 0)
+        {
+          *key = new_key;
+          return TRUE;
+        }
+
+      p = (guchar *)p + pref_size;
+    }
+
+  return FALSE;
+}
+
+/**
+ * meta_prefs_override_preference_location
+ * @original_key: the normal Metacity preference location
+ * @new_key: the Metacity preference location to use instead.
+ *
+ * Substitute a different location to use instead of a standard Metacity
+ * GConf key location. This might be used if a plugin expected a different
+ * value for some preference than the Metacity default. While this function
+ * can be called at any point, this function should generally be called
+ * in a plugin's constructor, rather than in its start() method so the
+ * preference isn't first loaded with one value then changed to another
+ * value.
+ */
+void
+meta_prefs_override_preference_location (const char *original_key,
+                                         const char *new_key)
+{
+  const char *search_key;
+  char *new_key_copy;
+  gboolean found;
+  MetaPrefsOverriddenKey *overridden;
+  GSList *tmp;
+
+  /* Merge identical overrides, this isn't an error */
+  for (tmp = overridden_keys; tmp; tmp = tmp->next)
+    {
+      MetaPrefsOverriddenKey *tmp_overridden = tmp->data;
+      if (strcmp (tmp_overridden->original_key, original_key) == 0 &&
+          strcmp (tmp_overridden->new_key, new_key) == 0)
+        return;
+    }
+
+  /* We depend on a unique mapping from GConf key to preference, so
+   * enforce this */
+
+  if (key_is_used (preferences_enum, sizeof(MetaEnumPreference), new_key) ||
+      key_is_used (preferences_bool, sizeof(MetaBoolPreference), new_key) ||
+      key_is_used (preferences_string, sizeof(MetaStringPreference), new_key) ||
+      key_is_used (preferences_int, sizeof(MetaIntPreference), new_key))
+    {
+      meta_warning (_("GConf key %s is already in use and can't be used to override %s\n"),
+                    new_key, original_key);
+
+    }
+
+  new_key_copy = g_strdup (new_key);
+
+  search_key = original_key;
+  overridden = NULL;
+
+  for (tmp = overridden_keys; tmp; tmp = tmp->next)
+    {
+      MetaPrefsOverriddenKey *tmp_overridden = tmp->data;
+      if (strcmp (overridden->original_key, original_key) == 0)
+        {
+          overridden = tmp_overridden;
+          search_key = tmp_overridden->new_key;
+        }
+    }
+
+  found =
+    do_override (preferences_enum, sizeof(MetaEnumPreference), search_key, new_key_copy) ||
+    do_override (preferences_bool, sizeof(MetaBoolPreference), search_key, new_key_copy) ||
+    do_override (preferences_string, sizeof(MetaStringPreference), search_key, new_key_copy) ||
+    do_override (preferences_int, sizeof(MetaIntPreference), search_key, new_key_copy);
+  if (found)
+    {
+      if (overridden)
+        {
+          g_free (overridden->new_key);
+          overridden->new_key = new_key_copy;
+        }
+      else
+        {
+          overridden = g_slice_new (MetaPrefsOverriddenKey);
+          overridden->original_key = g_strdup (original_key);
+          overridden->new_key = new_key_copy;
+        }
+
+#ifdef HAVE_GCONF
+      if (default_client != NULL)
+        {
+          /* We're already initialized, so notify of a change */
+
+          GConfValue *value;
+          GError *err = NULL;
+
+          value = gconf_client_get (default_client, new_key, &err);
+          cleanup_error (&err);
+
+          notify_new_value (new_key, value);
+
+          if (value)
+            gconf_value_free (value);
+        }
+#endif /* HAVE_GCONF */
+    }
+  else
+    {
+      meta_warning (_("Can't override GConf key, %s not found\n"), original_key);
+      g_free (new_key_copy);
+    }
+}
+
 
 /****************************************************************************/
 /* Updates.                                                                 */
@@ -1102,6 +1298,23 @@ gboolean (*preference_update_handler[]) (const gchar*, GConfValue*) = {
   NULL
 };
 
+static void
+notify_new_value (const char *key,
+                  GConfValue *value)
+{
+  int i = 0;
+
+  /* FIXME: Use MetaGenericPreference and save a bit of code duplication */
+
+  while (preference_update_handler[i] != NULL)
+    {
+      if (preference_update_handler[i] (key, value))
+        return;
+
+      i++;
+    }
+}
+
 static void
 change_notify (GConfClient    *client,
                guint           cnxn_id,
@@ -1110,25 +1323,13 @@ change_notify (GConfClient    *client,
 {
   const char *key;
   GConfValue *value;
-  gint i=0;
   
   key = gconf_entry_get_key (entry);
   value = gconf_entry_get_value (entry);
 
   /* First, search for a handler that might know what to do. */
 
-  /* FIXME: When this is all working, since the first item in every
-   * array is the gchar* of the key, there's no reason we can't
-   * find the correct record for that key here and save code duplication.
-   */
-
-  while (preference_update_handler[i]!=NULL)
-    {
-      if (preference_update_handler[i] (key, value))
-        goto out; /* Get rid of this eventually */
-
-      i++;
-    }
+  notify_new_value (key, value);
   
   if (g_str_has_prefix (key, KEY_WINDOW_BINDINGS_PREFIX) ||
       g_str_has_prefix (key, KEY_SCREEN_BINDINGS_PREFIX))
@@ -1146,7 +1347,7 @@ change_notify (GConfClient    *client,
 
           list = value ? gconf_value_get_list (value) : NULL;
 
-          if (update_key_list_binding (key, list))
+          if (update_key_list_binding (key, list, META_LIST_OF_GCONFVALUE_STRINGS))
             queue_changed (META_PREF_KEYBINDINGS);
         }
       else
@@ -1304,6 +1505,12 @@ meta_prefs_get_focus_new_windows (void)
   return focus_new_windows;
 }
 
+gboolean
+meta_prefs_get_attach_modal_dialogs (void)
+{
+  return attach_modal_dialogs;
+}
+
 gboolean
 meta_prefs_get_raise_on_click (void)
 {
@@ -1725,6 +1932,9 @@ meta_preference_to_string (MetaPreference pref)
     case META_PREF_FOCUS_NEW_WINDOWS:
       return "FOCUS_NEW_WINDOWS";
 
+    case META_PREF_ATTACH_MODAL_DIALOGS:
+      return "ATTACH_MODAL_DIALOGS";
+
     case META_PREF_RAISE_ON_CLICK:
       return "RAISE_ON_CLICK";
       
@@ -1800,6 +2010,12 @@ meta_preference_to_string (MetaPreference pref)
     case META_PREF_RESIZE_WITH_RIGHT_BUTTON:
       return "RESIZE_WITH_RIGHT_BUTTON";
 
+    case META_PREF_SIDE_BY_SIDE_TILING:
+      return "SIDE_BY_SIDE_TILING";
+
+    case META_PREF_FORCE_FULLSCREEN:
+      return "FORCE_FULLSCREEN";
+
     case META_PREF_CLUTTER_PLUGINS:
       return "CLUTTER_PLUGINS";
 
@@ -1888,57 +2104,66 @@ init_special_bindings (void)
 static void
 init_bindings (void)
 {
-#ifdef HAVE_GCONF  
-  int i = 0;
-  GError *err;
+#ifdef HAVE_GCONF
+  const char *prefix[] = {
+    KEY_WINDOW_BINDINGS_PREFIX,
+    KEY_SCREEN_BINDINGS_PREFIX,
+    NULL
+  };
+  int i;
+  GSList *list, *l, *list_val;
+  const char *str_val;
+  const char *key;
+  GConfEntry *entry;
+  GConfValue *value;
+  GHashTable *to_update;
 
+  g_assert (G_N_ELEMENTS (key_bindings) == META_KEYBINDING_ACTION_LAST + 1);
+
+  to_update = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
+
+  for (i = 0; prefix[i]; i++)
+    {
+      list = gconf_client_all_entries (default_client, prefix[i], NULL);
+      for (l = list; l; l = l->next)
+        {
+          entry = l->data;
+          key = gconf_entry_get_key (entry);
+          value = gconf_entry_get_value (entry);
+          if (g_str_has_suffix (key, KEY_LIST_BINDINGS_SUFFIX))
+            {
+              /* List bindings are used in addition to the normal bindings and never
+               * have defaults, so we just go ahead and set them immediately; there
+               * will be only a few of them, so don't worry about the linear scan
+               * in find_and_update_list_binding.
+               */
+              list_val = gconf_client_get_list (default_client, key, GCONF_VALUE_STRING, NULL);
+ 
+              update_key_list_binding (key, list_val, META_LIST_OF_STRINGS);
+              g_slist_foreach (list_val, (GFunc)g_free, NULL);
+              g_slist_free (list_val);
+            }
+          else
+            {
+              str_val = gconf_value_get_string (value);
+              g_hash_table_insert (to_update, binding_name (key), g_strdup (str_val));
+            }
+          gconf_entry_free (entry);
+        }
+      g_slist_free (list);
+    }
+
+  i = 0;
   while (key_bindings[i].name)
     {
-      GSList *list_val, *tmp;
-      char *str_val;
-      char *key;
- 
-      key = g_strconcat (key_bindings[i].per_window?
-                         KEY_WINDOW_BINDINGS_PREFIX:
-                         KEY_SCREEN_BINDINGS_PREFIX,
-                         "/",
-                         key_bindings[i].name, NULL);
- 
-      err = NULL;
-      str_val = gconf_client_get_string (default_client, key, &err);
-      cleanup_error (&err);
-
-      update_binding (&key_bindings[i], str_val);
-
-      g_free (str_val);      
-      g_free (key);
-
-      key = g_strconcat (key_bindings[i].per_window?
-                         KEY_WINDOW_BINDINGS_PREFIX:
-                         KEY_SCREEN_BINDINGS_PREFIX,
-                         "/",
-                         key_bindings[i].name,
-                         KEY_LIST_BINDINGS_SUFFIX, NULL);
-
-      err = NULL;
-
-      list_val = gconf_client_get_list (default_client, key, GCONF_VALUE_STRING, &err);
-      cleanup_error (&err);
- 
-      update_list_binding (&key_bindings[i], list_val, META_LIST_OF_STRINGS);
-
-      tmp = list_val;
-      while (tmp)
-        {
-          g_free (tmp->data);
-          tmp = tmp->next;
-        }
-      g_slist_free (list_val);
-      g_free (key);
+      update_binding (&key_bindings[i],
+                      g_hash_table_lookup (to_update, key_bindings[i].name));
 
       ++i;
     }
 
+  g_hash_table_destroy (to_update);
+
 #else /* HAVE_GCONF */
   int i = 0;
   while (key_bindings[i].name)
@@ -1960,28 +2185,23 @@ static void
 init_commands (void)
 {
 #ifdef HAVE_GCONF
-  int i;
-  GError *err;
-  
-  i = 0;
-  while (i < MAX_COMMANDS)
+  GSList *list, *l;
+  const char *str_val;
+  const char *key;
+  GConfEntry *entry;
+  GConfValue *value;
+
+  list = gconf_client_all_entries (default_client, KEY_COMMAND_DIRECTORY, NULL);
+  for (l = list; l; l = l->next)
     {
-      char *str_val;
-      char *key;
-
-      key = meta_prefs_get_gconf_key_for_command (i);
-
-      err = NULL;
-      str_val = gconf_client_get_string (default_client, key, &err);
-      cleanup_error (&err);
-
+      entry = l->data;
+      key = gconf_entry_get_key (entry);
+      value = gconf_entry_get_value (entry);
+      str_val = gconf_value_get_string (value);
       update_command (key, str_val);
-
-      g_free (str_val);    
-      g_free (key);
-
-      ++i;
+      gconf_entry_free (entry);
     }
+  g_slist_free (list);
 #else
   int i;
   for (i = 0; i < MAX_COMMANDS; i++)
@@ -1992,39 +2212,34 @@ init_commands (void)
 static void
 init_workspace_names (void)
 {
+  int i;
+
 #ifdef HAVE_GCONF
-  int i;
-  GError *err;
-  
-  i = 0;
-  while (i < MAX_REASONABLE_WORKSPACES)
+  GSList *list, *l;
+  const char *str_val;
+  const char *key;
+  GConfEntry *entry;
+  GConfValue *value;
+
+  list = gconf_client_all_entries (default_client, KEY_WORKSPACE_NAME_DIRECTORY, NULL);
+  for (l = list; l; l = l->next)
     {
-      char *str_val;
-      char *key;
-
-      key = gconf_key_for_workspace_name (i);
-
-      err = NULL;
-      str_val = gconf_client_get_string (default_client, key, &err);
-      cleanup_error (&err);
-
+      entry = l->data;
+      key = gconf_entry_get_key (entry);
+      value = gconf_entry_get_value (entry);
+      str_val = gconf_value_get_string (value);
       update_workspace_name (key, str_val);
-
-      g_assert (workspace_names[i] != NULL);
-      
-      g_free (str_val);    
-      g_free (key);
-
-      ++i;
+      gconf_entry_free (entry);
     }
-#else
-  int i;
+  g_slist_free (list);
+#endif /* HAVE_GCONF */
+
   for (i = 0; i < MAX_REASONABLE_WORKSPACES; i++)
-    workspace_names[i] = g_strdup_printf (_("Workspace %d"), i + 1);
+    if (workspace_names[i] == NULL)
+      workspace_names[i] = g_strdup_printf (_("Workspace %d"), i + 1);
 
   meta_topic (META_DEBUG_PREFS,
               "Initialized workspace names\n");
-#endif /* HAVE_GCONF */
 }
 
 static gboolean
@@ -2275,16 +2490,22 @@ update_list_binding (MetaKeyPref *binding,
   return changed;
 }
 
-static const gchar*
-relative_key (const gchar* key)
+static char *
+binding_name (const char *gconf_key)
 {
-  const gchar* end;
-  
-  end = strrchr (key, '/');
+  const char *start, *end;
 
-  ++end;
+  if (*gconf_key == '/')
+    start = strrchr (gconf_key, '/') + 1;
+  else
+    start = gconf_key;
 
-  return end;
+  if (g_str_has_suffix (gconf_key, KEY_LIST_BINDINGS_SUFFIX))
+    end = gconf_key + strlen(gconf_key) - strlen (KEY_LIST_BINDINGS_SUFFIX);
+  else
+    end = gconf_key + strlen(gconf_key);
+
+  return g_strndup (start, end - start);
 }
 
 /* Return value is TRUE if a preference changed and we need to
@@ -2292,22 +2513,19 @@ relative_key (const gchar* key)
  */
 static gboolean
 find_and_update_binding (MetaKeyPref *bindings, 
-                         const char  *name,
+                         const char  *key,
                          const char  *value)
 {
-  const char *key;
+  char *name = binding_name (key);
   int i;
-  
-  if (*name == '/')
-    key = relative_key (name);
-  else
-    key = name;
 
   i = 0;
   while (bindings[i].name &&
-         strcmp (key, bindings[i].name) != 0)
+         strcmp (name, bindings[i].name) != 0)
     ++i;
 
+  g_free (name);
+
   if (bindings[i].name)
     return update_binding (&bindings[i], value);
   else
@@ -2315,46 +2533,40 @@ find_and_update_binding (MetaKeyPref *bindings,
 }
 
 static gboolean
-update_key_binding (const char *name,
-                       const char *value)
+update_key_binding (const char *key,
+                    const char *value)
 {
-  return find_and_update_binding (key_bindings, name, value);
+  return find_and_update_binding (key_bindings, key, value);
 }
 
 static gboolean
-find_and_update_list_binding (MetaKeyPref *bindings,
-                              const char  *name,
-                              GSList      *value)
+find_and_update_list_binding (MetaKeyPref       *bindings,
+                              const char        *key,
+                              GSList            *value,
+                              MetaStringListType type_of_value)
 {
-  const char *key;
+  char *name = binding_name (key);
   int i;
-  gchar *name_without_suffix = g_strdup(name);
-
-  name_without_suffix[strlen(name_without_suffix) - strlen(KEY_LIST_BINDINGS_SUFFIX)] = 0;
-
-  if (*name_without_suffix == '/')
-    key = relative_key (name_without_suffix);
-  else
-    key = name_without_suffix;
 
   i = 0;
   while (bindings[i].name &&
-         strcmp (key, bindings[i].name) != 0)
+         strcmp (name, bindings[i].name) != 0)
     ++i;
 
-  g_free (name_without_suffix);
+  g_free (name);
 
   if (bindings[i].name)
-    return update_list_binding (&bindings[i], value, META_LIST_OF_GCONFVALUE_STRINGS);
+    return update_list_binding (&bindings[i], value, type_of_value);
   else
     return FALSE;
 }
 
 static gboolean
-update_key_list_binding (const char *name,
-                            GSList *value)
+update_key_list_binding (const char        *key,
+                         GSList            *value,
+                         MetaStringListType type_of_value)
 {
-  return find_and_update_list_binding (key_bindings, name, value);
+  return find_and_update_list_binding (key_bindings, key, value, type_of_value);
 }
 
 static gboolean
@@ -2713,6 +2925,12 @@ meta_prefs_get_gnome_animations ()
   return gnome_animations;
 }
 
+gboolean
+meta_prefs_get_side_by_side_tiling ()
+{
+  return side_by_side_tiling;
+}
+
 MetaKeyBindingAction
 meta_prefs_get_keybinding_action (const char *name)
 {
@@ -2792,6 +3010,12 @@ meta_prefs_get_mouse_button_menu (void)
   return resize_with_right_button ? 2: 3;
 }
 
+gboolean
+meta_prefs_get_force_fullscreen (void)
+{
+  return force_fullscreen;
+}
+
 void
 meta_prefs_set_compositing_manager (gboolean whether)
 {
@@ -2814,6 +3038,11 @@ meta_prefs_set_compositing_manager (gboolean whether)
 #endif
 }
 
+/**
+ * meta_prefs_get_clutter_plugins:
+ *
+ * Returns: (transfer none) (element-type utf8): Plugin names to load
+ */
 GSList *
 meta_prefs_get_clutter_plugins (void)
 {
@@ -2823,6 +3052,7 @@ meta_prefs_get_clutter_plugins (void)
 void
 meta_prefs_set_clutter_plugins (GSList *list)
 {
+#ifdef HAVE_GCONF
   GError *err = NULL;
 
   gconf_client_set_list (default_client,
@@ -2837,6 +3067,7 @@ meta_prefs_set_clutter_plugins (GSList *list)
                     err->message);
       g_error_free (err);
     }
+#endif
 }
 
 void
@@ -2957,3 +3188,10 @@ init_button_layout(void)
 };
 
 #endif
+
+void
+meta_prefs_set_force_fullscreen (gboolean whether)
+{
+  force_fullscreen = whether;
+}
+

src/core/screen-private.h

@@ -37,12 +37,11 @@
 #include "screen.h"
 #include <X11/Xutil.h>
 #include "stack-tracker.h"
-#include "alttabhandler.h"
 #include "ui.h"
 
-typedef struct _MetaXineramaScreenInfo MetaXineramaScreenInfo;
+typedef struct _MetaMonitorInfo MetaMonitorInfo;
 
-struct _MetaXineramaScreenInfo
+struct _MetaMonitorInfo
 {
   int number;
   MetaRectangle rect;
@@ -82,9 +81,11 @@ struct _MetaScreen
   Visual *default_xvisual;
   MetaRectangle rect;  /* Size of screen; rect.x & rect.y are always 0 */
   MetaUI *ui;
-  MetaAltTabHandler *tab_handler;
-  MetaTabPopup *ws_popup;
-  
+  MetaTabPopup *tab_popup, *ws_popup;
+  MetaTilePreview *tile_preview;
+
+  guint tile_preview_timeout_id;
+
   MetaWorkspace *active_workspace;
 
   /* This window holds the focus when we don't want to focus
@@ -105,11 +106,11 @@ struct _MetaScreen
   Atom wm_sn_atom;
   guint32 wm_sn_timestamp;
   
-  MetaXineramaScreenInfo *xinerama_infos;
-  int n_xinerama_infos;
+  MetaMonitorInfo *monitor_infos;
+  int n_monitor_infos;
 
-  /* Cache the current Xinerama */
-  int last_xinerama_index;
+  /* Cache the current monitor */
+  int last_monitor_index;
 
 #ifdef HAVE_STARTUP_NOTIFICATION
   SnMonitorContext *sn_context;
@@ -118,8 +119,9 @@ struct _MetaScreen
 #endif
 
   Window wm_cm_selection_window;
+  guint32 wm_cm_timestamp;
 
-  guint work_area_idle;
+  guint work_area_later;
 
   int rows_of_workspaces;
   int columns_of_workspaces;
@@ -131,9 +133,6 @@ struct _MetaScreen
   
   int closing;
 
-  /* gc for XOR on root window */
-  GC root_xor_gc;
-
   /* Managed by compositor.c */
   gpointer compositor_data;
   
@@ -147,7 +146,8 @@ struct _MetaScreenClass
 {
   GObjectClass parent_class;
 
-  void (*restacked) (MetaScreen *);
+  void (*restacked)         (MetaScreen *);
+  void (*workareas_changed) (MetaScreen *);
 };
 
 MetaScreen*   meta_screen_new                 (MetaDisplay                *display,
@@ -182,22 +182,25 @@ void          meta_screen_workspace_popup_select       (MetaScreen    *screen,
 MetaWorkspace*meta_screen_workspace_popup_get_selected (MetaScreen    *screen);
 void          meta_screen_workspace_popup_destroy      (MetaScreen    *screen);
 
+void          meta_screen_tile_preview_update          (MetaScreen    *screen,
+                                                        gboolean       delay);
+
 MetaWindow*   meta_screen_get_mouse_window     (MetaScreen                 *screen,
                                                 MetaWindow                 *not_this_one);
 
-const MetaXineramaScreenInfo* meta_screen_get_current_xinerama    (MetaScreen    *screen);
-const MetaXineramaScreenInfo* meta_screen_get_xinerama_for_rect   (MetaScreen    *screen,
-                                                                   MetaRectangle *rect);
-const MetaXineramaScreenInfo* meta_screen_get_xinerama_for_window (MetaScreen    *screen,
-                                                                   MetaWindow    *window);
+const MetaMonitorInfo* meta_screen_get_current_monitor    (MetaScreen    *screen);
+const MetaMonitorInfo* meta_screen_get_monitor_for_rect   (MetaScreen    *screen,
+                                                           MetaRectangle *rect);
+const MetaMonitorInfo* meta_screen_get_monitor_for_window (MetaScreen    *screen,
+                                                           MetaWindow    *window);
 
 
-const MetaXineramaScreenInfo* meta_screen_get_xinerama_neighbor (MetaScreen *screen,
-                                                                 int         which_xinerama,
-                                                                 MetaScreenDirection dir);
-void          meta_screen_get_natural_xinerama_list (MetaScreen *screen,
-                                                     int**       xineramas_list,
-                                                     int*        n_xineramas);
+const MetaMonitorInfo* meta_screen_get_monitor_neighbor (MetaScreen *screen,
+                                                         int         which_monitor,
+                                                         MetaScreenDirection dir);
+void          meta_screen_get_natural_monitor_list (MetaScreen *screen,
+                                                    int**       monitors_list,
+                                                    int*        n_monitors);
 
 void          meta_screen_update_workspace_layout (MetaScreen             *screen);
 void          meta_screen_update_workspace_names  (MetaScreen             *screen);

src/core/session.c

@@ -29,6 +29,7 @@
 #include <X11/Xatom.h>
 
 #include <time.h>
+#include <sys/wait.h>
 
 #ifndef HAVE_SM
 void
@@ -83,6 +84,7 @@ static char*       load_state         (const char *previous_save_file);
 static void        regenerate_save_file (void);
 static const char* full_save_file       (void);
 static void        warn_about_lame_clients_and_finish_interact (gboolean shutdown);
+static void        disconnect         (void);
 
 /* This is called when data is available on an ICE connection.  */
 static gboolean
@@ -105,9 +107,12 @@ process_ice_messages (GIOChannel *channel,
       IcePointer context = IceGetConnectionContext (connection);
 #endif
       
-      /* We were disconnected */
-      IceSetShutdownNegotiation (connection, False);
-      IceCloseConnection (connection);
+      /* We were disconnected; close our connection to the
+       * session manager, this will result in the ICE connection
+       * being cleaned up, since it is owned by libSM.
+       */
+      disconnect ();
+      meta_quit (META_EXIT_SUCCESS);
 
       return FALSE;
     }
@@ -1104,8 +1109,6 @@ load_state (const char *previous_save_file)
         {
           /* oh, just give up */
 
-          meta_warning (_("Failed to read saved session file %s: %s\n"),
-                    canonical_session_file, error->message);
           g_error_free (error);
           g_free (session_file);
           g_free (canonical_session_file);
@@ -1749,11 +1752,11 @@ finish_interact (gboolean shutdown)
 }
 
 static void
-sigchld_handler (MetaNexus *nexus, guint arg1, gpointer arg2, gpointer user_data)
+dialog_closed (GPid pid, int status, gpointer user_data)
 {
   gboolean shutdown = GPOINTER_TO_INT (user_data);
 
-  if (arg1 == 0) /* pressed "OK" */
+  if (WIFEXITED (status) && WEXITSTATUS (status) == 0) /* pressed "OK" */
     {
       finish_interact (shutdown);
     }
@@ -1767,6 +1770,7 @@ warn_about_lame_clients_and_finish_interact (gboolean shutdown)
   GSList *lame_details = NULL;
   GSList *tmp;
   GSList *columns = NULL;
+  GPid pid;
   
   windows = meta_display_list_windows (meta_get_display (), META_LIST_DEFAULT);
   tmp = windows;
@@ -1814,23 +1818,20 @@ warn_about_lame_clients_and_finish_interact (gboolean shutdown)
     }
   g_slist_free (lame);
 
-  meta_show_dialog("--list",
-                   _("These windows do not support &quot;save current setup&quot; "
-                     "and will have to be restarted manually next time "
-                     "you log in."),
-                   "240",
-                   meta_screen_get_screen_number (meta_get_display()->active_screen),
-                   NULL, NULL,
-                   None,
-                   columns,
-                   lame_details);
+  pid = meta_show_dialog("--list",
+                         _("These windows do not support &quot;save current setup&quot; "
+                           "and will have to be restarted manually next time "
+                           "you log in."),
+                         "240",
+                         meta_screen_get_screen_number (meta_get_display()->active_screen),
+                         NULL, NULL,
+                         None,
+                         columns,
+                         lame_details);
 
   g_slist_free (lame_details);
 
-  g_signal_connect (sigchld_nexus, "sigchld",
-                    G_CALLBACK (sigchld_handler),
-                    GINT_TO_POINTER (shutdown));
-
+  g_child_watch_add (pid, dialog_closed, GINT_TO_POINTER (shutdown));
 }
 
 #endif /* HAVE_SM */

src/core/stack-tracker.c

@@ -23,6 +23,7 @@
 
 #include <string.h>
 
+#include "frame-private.h"
 #include "screen-private.h"
 #include "stack-tracker.h"
 #include "util.h"
@@ -134,7 +135,7 @@ struct _MetaStackTracker
   /* Idle function used to sync the compositor's view of the window
    * stack up with our best guess before a frame is drawn.
    */
-  guint sync_stack_idle;
+  guint sync_stack_later;
 };
 
 static void
@@ -383,8 +384,8 @@ meta_stack_tracker_new (MetaScreen *screen)
 void
 meta_stack_tracker_free (MetaStackTracker *tracker)
 {
-  if (tracker->sync_stack_idle)
-    g_source_remove (tracker->sync_stack_idle);
+  if (tracker->sync_stack_later)
+    meta_later_remove (tracker->sync_stack_later);
 
   g_array_free (tracker->server_stack, TRUE);
   if (tracker->predicted_stack)
@@ -667,10 +668,10 @@ meta_stack_tracker_sync_stack (MetaStackTracker *tracker)
   int n_windows;
   int i;
 
-  if (tracker->sync_stack_idle)
+  if (tracker->sync_stack_later)
     {
-      g_source_remove (tracker->sync_stack_idle);
-      tracker->sync_stack_idle = 0;
+      meta_later_remove (tracker->sync_stack_later);
+      tracker->sync_stack_later = 0;
     }
 
   meta_stack_tracker_get_stack (tracker, &windows, &n_windows);
@@ -682,7 +683,15 @@ meta_stack_tracker_sync_stack (MetaStackTracker *tracker)
 
       meta_window = meta_display_lookup_x_window (tracker->screen->display,
                                                   windows[i]);
-      if (meta_window)
+      /* When mapping back from xwindow to MetaWindow we have to be a bit careful;
+       * children of the root could include unmapped windows created by toolkits
+       * for internal purposes, including ones that we have registered in our
+       * XID => window table. (Wine uses a toplevel for _NET_WM_USER_TIME_WINDOW;
+       * see window-prop.c:reload_net_wm_user_time_window() for registration.)
+       */
+      if (meta_window &&
+          (windows[i] == meta_window->xwindow ||
+           (meta_window->frame && windows[i] == meta_window->frame->xwindow)))
         meta_windows = g_list_prepend (meta_windows, meta_window);
     }
 
@@ -696,7 +705,7 @@ meta_stack_tracker_sync_stack (MetaStackTracker *tracker)
 }
 
 static gboolean
-stack_tracker_sync_stack_idle (gpointer data)
+stack_tracker_sync_stack_later (gpointer data)
 {
   meta_stack_tracker_sync_stack (data);
 
@@ -719,10 +728,10 @@ stack_tracker_sync_stack_idle (gpointer data)
 void
 meta_stack_tracker_queue_sync_stack (MetaStackTracker *tracker)
 {
-  if (tracker->sync_stack_idle == 0)
+  if (tracker->sync_stack_later == 0)
     {
-      tracker->sync_stack_idle = g_idle_add_full (META_PRIORITY_BEFORE_REDRAW,
-                                                  stack_tracker_sync_stack_idle,
+      tracker->sync_stack_later = meta_later_add (META_LATER_BEFORE_REDRAW,
+                                                  stack_tracker_sync_stack_later,
                                                   tracker, NULL);
     }
 }

src/core/stack.c

@@ -224,14 +224,14 @@ is_focused_foreach (MetaWindow *window,
 }
 
 static gboolean
-windows_on_different_xinerama (MetaWindow *a,
-                               MetaWindow *b)
+windows_on_different_monitor (MetaWindow *a,
+                              MetaWindow *b)
 {
   if (a->screen != b->screen)
     return TRUE;
 
-  return meta_screen_get_xinerama_for_window (a->screen, a) !=
-    meta_screen_get_xinerama_for_window (b->screen, b);
+  return meta_screen_get_monitor_for_window (a->screen, a) !=
+    meta_screen_get_monitor_for_window (b->screen, b);
 }
 
 /* Get layer ignoring any transient or group relationships */
@@ -275,8 +275,8 @@ get_standalone_layer (MetaWindow *window)
                 window == window->display->expected_focus_window ||
                 window->display->expected_focus_window == NULL ||
                 (window->display->expected_focus_window != NULL &&
-                 windows_on_different_xinerama (window,
-                                                window->display->expected_focus_window))))
+                 windows_on_different_monitor (window,
+                                               window->display->expected_focus_window))))
         layer = META_LAYER_FULLSCREEN;
       else if (window->wm_state_above)
         layer = META_LAYER_TOP;
@@ -1026,7 +1026,7 @@ raise_window_relative_to_managed_windows (MetaScreen *screen,
                                 xwindow,
                                 CWSibling | CWStackMode,
                                 &changes);
-              meta_error_trap_pop (screen->display, FALSE);
+              meta_error_trap_pop (screen->display);
 
               break;
             }
@@ -1046,7 +1046,7 @@ raise_window_relative_to_managed_windows (MetaScreen *screen,
                                        XNextRequest (screen->display->xdisplay));
       XLowerWindow (screen->display->xdisplay,
                     xwindow);
-      meta_error_trap_pop (screen->display, FALSE);
+      meta_error_trap_pop (screen->display);
     }
 }
 
@@ -1267,7 +1267,7 @@ stack_sync_to_server (MetaStack *stack)
 		   all_hidden->len);
   g_array_free (all_hidden, TRUE);
 
-  meta_error_trap_pop (stack->screen->display, FALSE);
+  meta_error_trap_pop (stack->screen->display);
   /* on error, a window was destroyed; it should eventually
    * get removed from the stacking list when we unmanage it
    * and we'll fix stacking at that time.

src/core/testboxes.c

@@ -21,7 +21,7 @@
  * 02111-1307, USA.
  */
 
-#include "boxes.h"
+#include "boxes-private.h"
 #include <glib.h>
 #include <stdlib.h>
 #include <stdio.h>
@@ -85,7 +85,7 @@ new_screen_edge (int x, int y, int width, int height, int side_type)
 }
 
 static MetaEdge*
-new_xinerama_edge (int x, int y, int width, int height, int side_type)
+new_monitor_edge (int x, int y, int width, int height, int side_type)
 {
   MetaEdge* temporary;
   temporary = g_new (MetaEdge, 1);
@@ -94,7 +94,7 @@ new_xinerama_edge (int x, int y, int width, int height, int side_type)
   temporary->rect.width  = width;
   temporary->rect.height = height;
   temporary->side_type = side_type;
-  temporary->edge_type = META_EDGE_XINERAMA;
+  temporary->edge_type = META_EDGE_MONITOR;
 
   return temporary;
 }
@@ -317,15 +317,15 @@ get_screen_edges (int which)
 }
 
 static GList*
-get_xinerama_edges (int which_xinerama_set, int which_strut_set)
+get_monitor_edges (int which_monitor_set, int which_strut_set)
 {
   GList *ret;
   GSList *struts;
   GList *xins;
 
   xins = NULL;
-  g_assert (which_xinerama_set >=0 && which_xinerama_set <= 3);
-  switch (which_xinerama_set)
+  g_assert (which_monitor_set >=0 && which_monitor_set <= 3);
+  switch (which_monitor_set)
     {
     case 0:
       xins = g_list_prepend (xins, new_meta_rect (  0,   0, 1600, 1200));
@@ -348,7 +348,7 @@ get_xinerama_edges (int which_xinerama_set, int which_strut_set)
   ret = NULL;
 
   struts = get_strut_list (which_strut_set);
-  ret = meta_rectangle_find_nonintersected_xinerama_edges (xins, struts);
+  ret = meta_rectangle_find_nonintersected_monitor_edges (xins, struts);
 
   free_strut_list (struts);
   meta_rectangle_free_list_and_elements (xins);
@@ -1145,7 +1145,7 @@ test_find_onscreen_edges ()
 }
 
 static void
-test_find_nonintersected_xinerama_edges ()
+test_find_nonintersected_monitor_edges ()
 {
   GList* edges;
   GList* tmp;
@@ -1156,32 +1156,32 @@ test_find_nonintersected_xinerama_edges ()
   int bottom = META_DIRECTION_BOTTOM;
 
   /*************************************************************************/  
-  /* Make sure test xinerama set 0 for with region 0 has the correct edges */
+  /* Make sure test monitor set 0 for with region 0 has the correct edges */
   /*************************************************************************/  
-  edges = get_xinerama_edges (0, 0);
+  edges = get_monitor_edges (0, 0);
   tmp = NULL;
   verify_edge_lists_are_equal (edges, tmp);
   meta_rectangle_free_list_and_elements (tmp);
   meta_rectangle_free_list_and_elements (edges);
 
   /*************************************************************************/  
-  /* Make sure test xinerama set 2 for with region 1 has the correct edges */
+  /* Make sure test monitor set 2 for with region 1 has the correct edges */
   /*************************************************************************/  
-  edges = get_xinerama_edges (2, 1);
+  edges = get_monitor_edges (2, 1);
   tmp = NULL;
-  tmp = g_list_prepend (tmp, new_xinerama_edge (   0,  600, 1600, 0, bottom));
-  tmp = g_list_prepend (tmp, new_xinerama_edge (   0,  600, 1600, 0, top));
+  tmp = g_list_prepend (tmp, new_monitor_edge (   0,  600, 1600, 0, bottom));
+  tmp = g_list_prepend (tmp, new_monitor_edge (   0,  600, 1600, 0, top));
   verify_edge_lists_are_equal (edges, tmp);
   meta_rectangle_free_list_and_elements (tmp);
   meta_rectangle_free_list_and_elements (edges);
 
   /*************************************************************************/  
-  /* Make sure test xinerama set 1 for with region 2 has the correct edges */
+  /* Make sure test monitor set 1 for with region 2 has the correct edges */
   /*************************************************************************/  
-  edges = get_xinerama_edges (1, 2);
+  edges = get_monitor_edges (1, 2);
   tmp = NULL;
-  tmp = g_list_prepend (tmp, new_xinerama_edge ( 800,   20, 0, 1080, right));
-  tmp = g_list_prepend (tmp, new_xinerama_edge ( 800,   20, 0, 1180, left));
+  tmp = g_list_prepend (tmp, new_monitor_edge ( 800,   20, 0, 1080, right));
+  tmp = g_list_prepend (tmp, new_monitor_edge ( 800,   20, 0, 1180, left));
 #if 0
   #define FUDGE 50
   char big_buffer1[(EDGE_LENGTH+2)*FUDGE], big_buffer2[(EDGE_LENGTH+2)*FUDGE];
@@ -1195,36 +1195,36 @@ test_find_nonintersected_xinerama_edges ()
   meta_rectangle_free_list_and_elements (edges);
 
   /*************************************************************************/  
-  /* Make sure test xinerama set 3 for with region 3 has the correct edges */
+  /* Make sure test monitor set 3 for with region 3 has the correct edges */
   /*************************************************************************/  
-  edges = get_xinerama_edges (3, 3);
+  edges = get_monitor_edges (3, 3);
   tmp = NULL;
-  tmp = g_list_prepend (tmp, new_xinerama_edge ( 900,  600,  700, 0, bottom));
-  tmp = g_list_prepend (tmp, new_xinerama_edge (   0,  600,  700, 0, bottom));
-  tmp = g_list_prepend (tmp, new_xinerama_edge ( 900,  600,  700, 0, top));
-  tmp = g_list_prepend (tmp, new_xinerama_edge (   0,  600,  700, 0, top));
-  tmp = g_list_prepend (tmp, new_xinerama_edge ( 800,  675, 0,  425, right));
-  tmp = g_list_prepend (tmp, new_xinerama_edge ( 800,  675, 0,  525, left));
+  tmp = g_list_prepend (tmp, new_monitor_edge ( 900,  600,  700, 0, bottom));
+  tmp = g_list_prepend (tmp, new_monitor_edge (   0,  600,  700, 0, bottom));
+  tmp = g_list_prepend (tmp, new_monitor_edge ( 900,  600,  700, 0, top));
+  tmp = g_list_prepend (tmp, new_monitor_edge (   0,  600,  700, 0, top));
+  tmp = g_list_prepend (tmp, new_monitor_edge ( 800,  675, 0,  425, right));
+  tmp = g_list_prepend (tmp, new_monitor_edge ( 800,  675, 0,  525, left));
   verify_edge_lists_are_equal (edges, tmp);
   meta_rectangle_free_list_and_elements (tmp);
   meta_rectangle_free_list_and_elements (edges);
 
   /*************************************************************************/  
-  /* Make sure test xinerama set 3 for with region 4 has the correct edges */
+  /* Make sure test monitor set 3 for with region 4 has the correct edges */
   /*************************************************************************/  
-  edges = get_xinerama_edges (3, 4);
+  edges = get_monitor_edges (3, 4);
   tmp = NULL;
-  tmp = g_list_prepend (tmp, new_xinerama_edge ( 800,  600,  800, 0, bottom));
-  tmp = g_list_prepend (tmp, new_xinerama_edge ( 800,  600,  800, 0, top));
-  tmp = g_list_prepend (tmp, new_xinerama_edge ( 800,  600,  0, 600, right));
+  tmp = g_list_prepend (tmp, new_monitor_edge ( 800,  600,  800, 0, bottom));
+  tmp = g_list_prepend (tmp, new_monitor_edge ( 800,  600,  800, 0, top));
+  tmp = g_list_prepend (tmp, new_monitor_edge ( 800,  600,  0, 600, right));
   verify_edge_lists_are_equal (edges, tmp);
   meta_rectangle_free_list_and_elements (tmp);
   meta_rectangle_free_list_and_elements (edges);
 
   /*************************************************************************/  
-  /* Make sure test xinerama set 3 for with region 5has the correct edges */
+  /* Make sure test monitor set 3 for with region 5has the correct edges */
   /*************************************************************************/  
-  edges = get_xinerama_edges (3, 5);
+  edges = get_monitor_edges (3, 5);
   tmp = NULL;
   verify_edge_lists_are_equal (edges, tmp);
   meta_rectangle_free_list_and_elements (tmp);
@@ -1405,7 +1405,7 @@ main()
 
   /* And now the functions dealing with edges more than boxes */
   test_find_onscreen_edges ();
-  test_find_nonintersected_xinerama_edges ();
+  test_find_nonintersected_monitor_edges ();
 
   /* And now the misfit functions that don't quite fit in anywhere else... */
   test_gravity_resize ();

src/core/util.c

@@ -26,9 +26,12 @@
 #define _POSIX_C_SOURCE 200112L /* for fdopen() */
 
 #include <config.h>
+#include "common.h"
 #include "util.h"
 #include "main.h"
 
+#include <clutter/clutter.h> /* For clutter_threads_add_repaint_func() */
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
@@ -37,7 +40,12 @@
 #include <X11/Xlib.h>   /* must explicitly be included for Solaris; #326746 */
 #include <X11/Xutil.h>  /* Just for the definition of the various gravities */
 
-MetaNexus *sigchld_nexus;
+#ifdef WITH_VERBOSE_MODE
+static void
+meta_topic_real_valist (MetaDebugTopic topic,
+                        const char    *format,
+                        va_list        args);
+#endif
 
 #ifdef HAVE_BACKTRACE
 #include <execinfo.h>
@@ -70,7 +78,7 @@ meta_print_backtrace (void)
 }
 #endif
 
-static gboolean is_verbose = FALSE;
+static gint verbose_topics = 0;
 static gboolean is_debugging = FALSE;
 static gboolean replace_current = FALSE;
 static int no_prefix = 0;
@@ -127,7 +135,7 @@ ensure_logfile (void)
 gboolean
 meta_is_verbose (void)
 {
-  return is_verbose;
+  return verbose_topics != 0;
 }
 
 void
@@ -140,8 +148,48 @@ meta_set_verbose (gboolean setting)
   if (setting)
     ensure_logfile ();
 #endif
-  
-  is_verbose = setting;
+
+  if (setting)
+    meta_add_verbose_topic (META_DEBUG_VERBOSE);
+  else
+    meta_remove_verbose_topic (META_DEBUG_VERBOSE);
+}
+
+/**
+ * meta_add_verbose_topic:
+ * @topic: Topic for which logging will be started
+ *
+ * Ensure log messages for the given topic @topic
+ * will be printed.
+ */
+void
+meta_add_verbose_topic (MetaDebugTopic topic)
+{
+  if (verbose_topics == META_DEBUG_VERBOSE)
+    return;
+  if (topic == META_DEBUG_VERBOSE)
+    verbose_topics = META_DEBUG_VERBOSE;
+  else
+    verbose_topics |= topic;
+}
+
+/**
+ * meta_remove_verbose_topic:
+ * @topic: Topic for which logging will be stopped
+ *
+ * Stop printing log messages for the given topic @topic.  Note
+ * that this method does not stack with meta_add_verbose_topic();
+ * i.e. if two calls to meta_add_verbose_topic() for the same
+ * topic are made, one call to meta_remove_verbose_topic() will
+ * remove it.
+ */
+void
+meta_remove_verbose_topic (MetaDebugTopic topic)
+{
+  if (topic == META_DEBUG_VERBOSE)
+    verbose_topics = 0;
+  else
+    verbose_topics &= ~topic;
 }
 
 gboolean
@@ -249,27 +297,10 @@ void
 meta_verbose_real (const char *format, ...)
 {
   va_list args;
-  gchar *str;
-  FILE *out;
 
-  g_return_if_fail (format != NULL);
-
-  if (!is_verbose)
-    return;
-  
   va_start (args, format);
-  str = g_strdup_vprintf (format, args);
+  meta_topic_real_valist (META_DEBUG_VERBOSE, format, args);
   va_end (args);
-
-  out = logfile ? logfile : stderr;
-  
-  if (no_prefix == 0)
-    utf8_fputs ("Window manager: ", out);
-  utf8_fputs (str, out);
-
-  fflush (out);
-  
-  g_free (str);
 }
 #endif /* WITH_VERBOSE_MODE */
 
@@ -323,6 +354,8 @@ topic_name (MetaDebugTopic topic)
       return "COMPOSITOR";
     case META_DEBUG_EDGE_RESISTANCE:
       return "EDGE_RESISTANCE";
+    case META_DEBUG_VERBOSE:
+      return "VERBOSE";
     }
 
   return "WM";
@@ -330,23 +363,22 @@ topic_name (MetaDebugTopic topic)
 
 static int sync_count = 0;
 
-void
-meta_topic_real (MetaDebugTopic topic,
-                 const char *format,
-                 ...)
+static void
+meta_topic_real_valist (MetaDebugTopic topic,
+                        const char    *format,
+                        va_list        args)
 {
-  va_list args;
   gchar *str;
   FILE *out;
 
   g_return_if_fail (format != NULL);
 
-  if (!is_verbose)
+  if (verbose_topics == 0
+      || (topic == META_DEBUG_VERBOSE && verbose_topics != META_DEBUG_VERBOSE)
+      || (!(verbose_topics & topic)))
     return;
-  
-  va_start (args, format);  
+
   str = g_strdup_vprintf (format, args);
-  va_end (args);
 
   out = logfile ? logfile : stderr;
 
@@ -365,6 +397,18 @@ meta_topic_real (MetaDebugTopic topic,
   
   g_free (str);
 }
+
+void
+meta_topic_real (MetaDebugTopic topic,
+                 const char *format,
+                 ...)
+{
+  va_list args;
+
+  va_start (args, format);
+  meta_topic_real_valist (topic, format, args);
+  va_end (args);
+}
 #endif /* WITH_VERBOSE_MODE */
 
 void
@@ -557,7 +601,7 @@ meta_show_dialog (const char *type,
   int i=0;
   GPid child_pid;
   const char **argvl = g_malloc(sizeof (char*) *
-                                (15 +
+                                (17 +
                                  g_slist_length (columns)*2 +
                                  g_slist_length (entries)));
 
@@ -565,6 +609,8 @@ meta_show_dialog (const char *type,
   argvl[i++] = type;
   argvl[i++] = "--screen";
   argvl[i++] = screen_number_text;
+  argvl[i++] = "--class";
+  argvl[i++] = "mutter-dialog";
   argvl[i++] = "--title";
   /* Translators: This is the title used on dialog boxes */
   argvl[i++] = _("Mutter");
@@ -638,29 +684,200 @@ meta_show_dialog (const char *type,
   return child_pid;
 }
 
-GType
-meta_nexus_get_type (void)
+/***************************************************************************
+ * Later functions: like idles but integrated with the Clutter repaint loop
+ ***************************************************************************/
+
+static guint last_later_id = 0;
+
+typedef struct
 {
-  static GType nexus_type = 0;
+  guint id;
+  MetaLaterType when;
+  GSourceFunc func;
+  gpointer data;
+  GDestroyNotify notify;
+  int source;
+  gboolean run_once;
+} MetaLater;
 
-  if (!nexus_type)
+static GSList *laters = NULL;
+/* This is a dummy timeline used to get the Clutter master clock running */
+static ClutterTimeline *later_timeline;
+static guint later_repaint_func = 0;
+
+static void ensure_later_repaint_func (void);
+
+static void
+destroy_later (MetaLater *later)
+{
+  if (later->source)
+    g_source_remove (later->source);
+  if (later->notify)
+    later->notify (later->data);
+  g_slice_free (MetaLater, later);
+}
+
+/* Used to sort the list of laters with the highest priority
+ * functions first.
+ */
+static int
+compare_laters (gconstpointer a,
+                gconstpointer b)
+{
+  return ((const MetaLater *)a)->when - ((const MetaLater *)b)->when;
+}
+
+static gboolean
+run_repaint_laters (gpointer data)
+{
+  GSList *old_laters = laters;
+  GSList *l;
+  gboolean keep_timeline_running = FALSE;
+  laters = NULL;
+
+  for (l = old_laters; l; l = l->next)
     {
-      static const GTypeInfo nexus_info =
-      {
-        sizeof (MetaNexusClass),
-	NULL, NULL, NULL, NULL, NULL,
-	sizeof (MetaNexus),
-	0,
-	NULL, NULL
-      };
-
-      nexus_type = g_type_register_static (G_TYPE_OBJECT,
-					   "MetaNexus",
-					   &nexus_info,
-					   0);
+      MetaLater *later = l->data;
+      if (later->source == 0 ||
+          (later->when <= META_LATER_BEFORE_REDRAW && !later->run_once))
+        {
+          if (later->func (later->data))
+            {
+              if (later->source == 0)
+                keep_timeline_running = TRUE;
+              laters = g_slist_insert_sorted (laters, later, compare_laters);
+            }
+          else
+            destroy_later (later);
+        }
+      else
+        laters = g_slist_insert_sorted (laters, later, compare_laters);
     }
 
-  return nexus_type;
+  if (!keep_timeline_running)
+    clutter_timeline_stop (later_timeline);
+
+  g_slist_free (old_laters);
+
+  /* Just keep the repaint func around - it's cheap if the list is empty */
+  return TRUE;
+}
+
+static void
+ensure_later_repaint_func (void)
+{
+  if (!later_timeline)
+    later_timeline = clutter_timeline_new (G_MAXUINT);
+
+  if (later_repaint_func == 0)
+    later_repaint_func = clutter_threads_add_repaint_func (run_repaint_laters,
+                                                           NULL, NULL);
+
+  /* Make sure the repaint function gets run */
+  clutter_timeline_start (later_timeline);
+}
+
+static gboolean
+call_idle_later (gpointer data)
+{
+  MetaLater *later = data;
+
+  if (!later->func (later->data))
+    {
+      laters = g_slist_remove (laters, later);
+      later->source = 0;
+      destroy_later (later);
+      return FALSE;
+    }
+  else
+    {
+      later->run_once = TRUE;
+      return TRUE;
+    }
+}
+
+/**
+ * meta_later_add:
+ * @when:     enumeration value determining the phase at which to run the callback
+ * @func:     callback to run later
+ * @data:     data to pass to the callback
+ * @notify:   function to call to destroy @data when it is no longer in use, or %NULL
+ *
+ * Sets up a callback  to be called at some later time. @when determines the
+ * particular later occasion at which it is called. This is much like g_idle_add(),
+ * except that the functions interact properly with clutter event handling.
+ * If a "later" function is added from a clutter event handler, and is supposed
+ * to be run before the stage is redrawn, it will be run before that redraw
+ * of the stage, not the next one.
+ *
+ * Return value: an integer ID (guaranteed to be non-zero) that can be used
+ *  to cancel the callback and prevent it from being run.
+ */
+guint
+meta_later_add (MetaLaterType  when,
+                GSourceFunc    func,
+                gpointer       data,
+                GDestroyNotify notify)
+{
+  MetaLater *later = g_slice_new0 (MetaLater);
+
+  later->id = ++last_later_id;
+  later->when = when;
+  later->func = func;
+  later->data = data;
+  later->notify = notify;
+
+  laters = g_slist_insert_sorted (laters, later, compare_laters);
+
+  switch (when)
+    {
+    case META_LATER_RESIZE:
+      /* We add this one two ways - as a high-priority idle and as a
+       * repaint func. If we are in a clutter event callback, the repaint
+       * handler will get hit first, and we'll take care of this function
+       * there so it gets called before the stage is redrawn, even if
+       * we haven't gotten back to the main loop. Otherwise, the idle
+       * handler will get hit first and we want to call this function
+       * there so it will happen before GTK+ repaints.
+       */
+      later->source = g_idle_add_full (META_PRIORITY_RESIZE, call_idle_later, later, NULL);
+      ensure_later_repaint_func ();
+      break;
+    case META_LATER_BEFORE_REDRAW:
+      ensure_later_repaint_func ();
+      break;
+    case META_LATER_IDLE:
+      later->source = g_idle_add_full (G_PRIORITY_DEFAULT_IDLE, call_idle_later, later, NULL);
+      break;
+    }
+
+  return later->id;
+}
+
+/**
+ * meta_later_remove:
+ * @later_id: the integer ID returned from meta_later_add()
+ *
+ * Removes a callback added with meta_later_add()
+ */
+void
+meta_later_remove (guint later_id)
+{
+  GSList *l;
+
+  for (l = laters; l; l = l->next)
+    {
+      MetaLater *later = l->data;
+      if (later->id == later_id)
+        {
+          laters = g_slist_remove_link (laters, l);
+          /* If this was a "repaint func" later, we just let the
+           * repaint func run and get removed
+           */
+          destroy_later (later);
+        }
+    }
 }
 
 /* eof util.c */

src/core/window-private.h

@@ -46,9 +46,6 @@
 
 typedef struct _MetaWindowQueue MetaWindowQueue;
 
-typedef gboolean (*MetaWindowForeachFunc) (MetaWindow *window,
-                                           void       *data);
-
 typedef enum {
   META_CLIENT_TYPE_UNKNOWN = 0,
   META_CLIENT_TYPE_APPLICATION = 1,
@@ -64,6 +61,12 @@ typedef enum {
 
 #define NUMBER_OF_QUEUES 3
 
+typedef enum {
+  META_TILE_NONE,
+  META_TILE_LEFT,
+  META_TILE_RIGHT
+} MetaTileMode;
+
 struct _MetaWindow
 {
   GObject parent_instance;
@@ -99,6 +102,7 @@ struct _MetaWindow
   char *sm_client_id;
   char *wm_client_machine;
   char *startup_id;
+  char *mutter_hints;
 
   int net_wm_pid;
   
@@ -124,12 +128,23 @@ struct _MetaWindow
   guint maximize_vertically_after_placement : 1;
   guint minimize_after_placement : 1;
 
+  /* The current or requested tile mode. If maximized_vertically is true,
+   * this is the current mode. If not, it is the mode which will be
+   * requested after the window grab is released */
+  guint tile_mode : 2;
+
   /* Whether we're shaded */
   guint shaded : 1;
 
   /* Whether we're fullscreen */
   guint fullscreen : 1;
 
+  /* Whether the urgent flag of WM_HINTS is set */
+  guint wm_hints_urgent : 1;
+
+  /* Whether we have to fullscreen after placement */
+  guint fullscreen_after_placement : 1;
+
   /* Area to cover when in fullscreen mode.  If _NET_WM_FULLSCREEN_MONITORS has
    * been overridden (via a client message), the window will cover the union of
    * these monitors.  If not, this is the single monitor which the window's
@@ -139,8 +154,8 @@ struct _MetaWindow
   /* Whether we're trying to constrain the window to be fully onscreen */
   guint require_fully_onscreen : 1;
 
-  /* Whether we're trying to constrain the window to be on a single xinerama */
-  guint require_on_single_xinerama : 1;
+  /* Whether we're trying to constrain the window to be on a single monitor */
+  guint require_on_single_monitor : 1;
 
   /* Whether we're trying to constrain the window's titlebar to be onscreen */
   guint require_titlebar_visible : 1;
@@ -246,6 +261,9 @@ struct _MetaWindow
   /* Have we placed this window? */
   guint placed : 1;
 
+  /* Must we force_save_user_window_placement? */
+  guint force_save_user_rect : 1;
+
   /* Is this not a transient of the focus window which is being denied focus? */
   guint denied_focus_and_not_transient : 1;
 
@@ -316,6 +334,9 @@ struct _MetaWindow
    */
   int unmaps_pending;
 
+  /* See docs for meta_window_get_stable_sequence() */
+  guint32 stable_sequence;
+
   /* set to the most recent user-interaction event timestamp that we
      know about for this window */
   guint32 net_wm_user_time;
@@ -377,6 +398,7 @@ struct _MetaWindowClass
   void (*workspace_changed) (MetaWindow *window, int  old_workspace);
   void (*focus)             (MetaWindow *window);
   void (*raised)            (MetaWindow *window);
+  void (*unmanaged)         (MetaWindow *window);
 };
 
 /* These differ from window->has_foo_func in that they consider
@@ -387,8 +409,11 @@ struct _MetaWindowClass
                                         (w)->maximized_vertically)
 #define META_WINDOW_MAXIMIZED_VERTICALLY(w)    ((w)->maximized_vertically)
 #define META_WINDOW_MAXIMIZED_HORIZONTALLY(w)  ((w)->maximized_horizontally)
+#define META_WINDOW_TILED(w)           ((w)->maximized_vertically && \
+                                        !(w)->maximized_horizontally && \
+                                        (w)->tile_mode != META_TILE_NONE)
 #define META_WINDOW_ALLOWS_MOVE(w)     ((w)->has_move_func && !(w)->fullscreen)
-#define META_WINDOW_ALLOWS_RESIZE_EXCEPT_HINTS(w)   ((w)->has_resize_func && !META_WINDOW_MAXIMIZED (w) && !(w)->fullscreen && !(w)->shaded)
+#define META_WINDOW_ALLOWS_RESIZE_EXCEPT_HINTS(w)   ((w)->has_resize_func && !META_WINDOW_MAXIMIZED (w) && !META_WINDOW_TILED(w) && !(w)->fullscreen && !(w)->shaded)
 #define META_WINDOW_ALLOWS_RESIZE(w)   (META_WINDOW_ALLOWS_RESIZE_EXCEPT_HINTS (w) &&                \
                                         (((w)->size_hints.min_width < (w)->size_hints.max_width) ||  \
                                          ((w)->size_hints.min_height < (w)->size_hints.max_height)))
@@ -411,6 +436,11 @@ void        meta_window_queue              (MetaWindow  *window,
 void        meta_window_maximize_internal  (MetaWindow        *window,
                                             MetaMaximizeFlags  directions,
                                             MetaRectangle     *saved_rect);
+void        meta_window_unmaximize_with_gravity (MetaWindow        *window,
+                                                 MetaMaximizeFlags  directions,
+                                                 int                new_width,
+                                                 int                new_height,
+                                                 int                gravity);
 void        meta_window_make_above         (MetaWindow  *window);
 void        meta_window_unmake_above       (MetaWindow  *window);
 void        meta_window_shade              (MetaWindow  *window,
@@ -456,8 +486,6 @@ void        meta_window_resize_with_gravity (MetaWindow  *window,
 /* Return whether the window should be currently mapped */
 gboolean    meta_window_should_be_showing   (MetaWindow  *window);
 
-gboolean    meta_window_toplevel_is_mapped  (MetaWindow  *window);
-
 /* See warning in window.c about this function */
 gboolean    __window_is_terminal (MetaWindow *window);
 
@@ -495,8 +523,6 @@ void        meta_window_get_geometry         (MetaWindow  *window,
 void        meta_window_kill               (MetaWindow  *window);
 void        meta_window_focus              (MetaWindow  *window,
                                             guint32      timestamp);
-void        meta_window_raise              (MetaWindow  *window);
-void        meta_window_lower              (MetaWindow  *window);
 
 void        meta_window_update_unfocused_button_grabs (MetaWindow *window);
 
@@ -546,13 +572,16 @@ GList* meta_window_get_workspaces (MetaWindow *window);
 gboolean meta_window_located_on_workspace (MetaWindow    *window,
                                            MetaWorkspace *workspace);
 
-void meta_window_get_work_area_current_xinerama (MetaWindow    *window,
-                                                 MetaRectangle *area);
-void meta_window_get_work_area_for_xinerama     (MetaWindow    *window,
-                                                 int            which_xinerama,
-                                                 MetaRectangle *area);
-void meta_window_get_work_area_all_xineramas    (MetaWindow    *window,
-                                                 MetaRectangle *area);
+void meta_window_get_work_area_current_monitor (MetaWindow    *window,
+                                                MetaRectangle *area);
+void meta_window_get_work_area_for_monitor     (MetaWindow    *window,
+                                                int            which_monitor,
+                                                MetaRectangle *area);
+void meta_window_get_work_area_all_monitors    (MetaWindow    *window,
+                                                MetaRectangle *area);
+
+void meta_window_get_current_tile_area         (MetaWindow    *window,
+                                                MetaRectangle *tile_area);
 
 
 gboolean meta_window_same_application (MetaWindow *window,
@@ -571,12 +600,6 @@ void meta_window_refresh_resize_popup (MetaWindow *window);
 
 void meta_window_free_delete_dialog (MetaWindow *window);
 
-void     meta_window_foreach_transient        (MetaWindow            *window,
-                                               MetaWindowForeachFunc  func,
-                                               void                  *data);
-void     meta_window_foreach_ancestor         (MetaWindow            *window,
-                                               MetaWindowForeachFunc  func,
-                                               void                  *data);
 
 void meta_window_begin_grab_op (MetaWindow *window,
                                 MetaGrabOp  op,
@@ -599,10 +622,6 @@ void meta_window_stack_just_below (MetaWindow *window,
 void meta_window_set_user_time (MetaWindow *window,
                                 guint32     timestamp);
 
-void meta_window_set_demands_attention (MetaWindow *window);
-
-void meta_window_unset_demands_attention (MetaWindow *window);
-
 void meta_window_update_icon_now (MetaWindow *window);
 
 void meta_window_update_role (MetaWindow *window);

src/core/window-props.c

@@ -442,7 +442,7 @@ set_title_text (MetaWindow  *window,
       XDeleteProperty (window->display->xdisplay,
                        window->xwindow,
                        atom);
-      meta_error_trap_pop (window->display, FALSE);
+      meta_error_trap_pop (window->display);
     }
 
   return modified;
@@ -472,8 +472,8 @@ set_window_title (MetaWindow *window,
     meta_ui_set_frame_title (window->screen->ui,
                              window->frame->xwindow,
                              window->title);
-  if (modified)
-    g_object_notify (G_OBJECT (window), "title");  
+
+  g_object_notify (G_OBJECT (window), "title");
 }
 
 static void
@@ -523,6 +523,49 @@ reload_wm_name (MetaWindow    *window,
     }
 }
 
+static void
+reload_mutter_hints (MetaWindow    *window,
+                     MetaPropValue *value,
+                     gboolean       initial)
+{
+  if (value->type != META_PROP_VALUE_INVALID)
+    {
+      char     *new_hints = value->v.str;
+      char     *old_hints = window->mutter_hints;
+      gboolean  changed   = FALSE;
+
+      if (new_hints)
+        {
+          if (!old_hints || strcmp (new_hints, old_hints))
+            changed = TRUE;
+        }
+      else
+        {
+          if (old_hints)
+            changed = TRUE;
+        }
+
+      if (changed)
+        {
+          g_free (old_hints);
+
+          if (new_hints)
+            window->mutter_hints = g_strdup (new_hints);
+          else
+            window->mutter_hints = NULL;
+
+          g_object_notify (G_OBJECT (window), "mutter-hints");
+        }
+    }
+  else if (window->mutter_hints)
+    {
+      g_free (window->mutter_hints);
+      window->mutter_hints = NULL;
+
+      g_object_notify (G_OBJECT (window), "mutter-hints");
+    }
+}
+
 static void
 set_icon_title (MetaWindow *window,
                 const char *title)
@@ -604,6 +647,7 @@ reload_net_wm_state (MetaWindow    *window,
   window->shaded = FALSE;
   window->maximized_horizontally = FALSE;
   window->maximized_vertically = FALSE;
+  window->fullscreen = FALSE;
   window->wm_state_modal = FALSE;
   window->wm_state_skip_taskbar = FALSE;
   window->wm_state_skip_pager = FALSE;
@@ -632,13 +676,7 @@ reload_net_wm_state (MetaWindow    *window,
       else if (value->v.atom_list.atoms[i] == window->display->atom__NET_WM_STATE_SKIP_PAGER)
         window->wm_state_skip_pager = TRUE;
       else if (value->v.atom_list.atoms[i] == window->display->atom__NET_WM_STATE_FULLSCREEN)
-        {
-          if (!window->fullscreen)
-            {
-              window->fullscreen = TRUE;
-              g_object_notify (G_OBJECT (window), "fullscreen");
-            }
-        }
+        window->fullscreen_after_placement = TRUE;
       else if (value->v.atom_list.atoms[i] == window->display->atom__NET_WM_STATE_ABOVE)
         window->wm_state_above = TRUE;
       else if (value->v.atom_list.atoms[i] == window->display->atom__NET_WM_STATE_BELOW)
@@ -1350,8 +1388,10 @@ reload_wm_hints (MetaWindow    *window,
                  gboolean       initial)
 {
   Window old_group_leader;
-  
+  gboolean old_urgent;
+
   old_group_leader = window->xgroup_leader;
+  old_urgent = window->wm_hints_urgent;
   
   /* Fill in defaults */
   window->input = TRUE;
@@ -1359,7 +1399,8 @@ reload_wm_hints (MetaWindow    *window,
   window->xgroup_leader = None;
   window->wm_hints_pixmap = None;
   window->wm_hints_mask = None;
-  
+  window->wm_hints_urgent = FALSE;
+
   if (value->type != META_PROP_VALUE_INVALID)
     {
       const XWMHints *hints = value->v.wm_hints;
@@ -1378,7 +1419,10 @@ reload_wm_hints (MetaWindow    *window,
 
       if (hints->flags & IconMaskHint)
         window->wm_hints_mask = hints->icon_mask;
-      
+
+      if (hints->flags & XUrgencyHint)
+        window->wm_hints_urgent = TRUE;
+
       meta_verbose ("Read WM_HINTS input: %d iconic: %d group leader: 0x%lx pixmap: 0x%lx mask: 0x%lx\n",
                     window->input, window->initially_iconic,
                     window->xgroup_leader,
@@ -1394,6 +1438,21 @@ reload_wm_hints (MetaWindow    *window,
       meta_window_group_leader_changed (window);
     }
 
+  /*
+   * Do not emit urgency notification on the inital property load
+   */
+  if (!initial && (window->wm_hints_urgent != old_urgent))
+    g_object_notify (G_OBJECT (window), "urgent");
+
+  /*
+   * Do not emit signal for the initial property load, let the constructor to
+   * take care of it once the MetaWindow is fully constructed.
+   *
+   * Only emit if the property is both changed and set.
+   */
+  if (!initial && window->wm_hints_urgent && !old_urgent)
+    g_signal_emit_by_name (window->display, "window-marked-urgent", window);
+
   meta_icon_cache_property_changed (&window->icon_cache,
                                     window->display,
                                     XA_WM_HINTS);
@@ -1490,6 +1549,7 @@ meta_display_init_window_prop_hooks (MetaDisplay *display)
     { XA_WM_CLASS,                     META_PROP_VALUE_CLASS_HINT, reload_wm_class,        TRUE,  TRUE },
     { display->atom__NET_WM_PID,       META_PROP_VALUE_CARDINAL, reload_net_wm_pid,        TRUE,  TRUE },
     { XA_WM_NAME,                      META_PROP_VALUE_TEXT_PROPERTY, reload_wm_name,      TRUE,  TRUE },
+    { display->atom__MUTTER_HINTS,     META_PROP_VALUE_TEXT_PROPERTY, reload_mutter_hints, TRUE,  TRUE },
     { display->atom__NET_WM_ICON_NAME, META_PROP_VALUE_UTF8,     reload_net_wm_icon_name,  TRUE,  FALSE },
     { XA_WM_ICON_NAME,                 META_PROP_VALUE_TEXT_PROPERTY, reload_wm_icon_name, TRUE,  FALSE },
     { display->atom__NET_WM_DESKTOP,   META_PROP_VALUE_CARDINAL, reload_net_wm_desktop,    TRUE,  FALSE },