window: Update drag hotspot as new touches approach

Any number of touches >= 3 starts a drag operation, but the
window jumped around as new touches joined. So recalculate
the touch drag area/hotspot and tiling mode as expected
as soon as touches enter/leave the drag op.

configure.in

@@ -225,6 +225,50 @@ if test x$have_xcursor = xyes; then
   AC_DEFINE(HAVE_XCURSOR, , [Building with Xcursor support])
 fi
 
+XINPUT2_VERSION=1.4.0
+
+AC_ARG_ENABLE(xinput2,
+  AC_HELP_STRING([--disable-xinput2],
+                 [disable XInput2 usage]),,
+  enable_xinput2=yes)
+
+if test x$enable_xinput2 = xyes; then
+  AC_MSG_CHECKING([XInput2])
+  if $PKG_CONFIG --atleast-version $XINPUT2_VERSION xi; then
+    have_xinput2=yes
+  else
+    have_xinput2=no
+  fi
+  AC_MSG_RESULT($have_xinput2)
+else
+  have_xinput2=no
+fi
+
+if test x$have_xinput2 = xyes; then
+  echo "Building with XInput2"
+  MUTTER_PC_MODULES="$MUTTER_PC_MODULES xi"
+  AC_DEFINE(HAVE_XINPUT2, , [Building with XInput2 support])
+fi
+
+AM_CONDITIONAL(HAVE_XINPUT2, test "$have_xinput2" = "yes")
+
+if test x$have_xinput2 = xyes; then
+  mutter_save_libs="$LIBS"
+  LIBS="-lXi $LIBS"
+
+  AC_CHECK_FUNC(XIAllowTouchEvents,
+                have_xtouch=yes,
+                have_xtouch=no)
+
+  LIBS="$mutter_save_libs"
+else
+  have_xtouch=no
+fi
+
+if test x$have_xtouch = xyes; then
+  AC_DEFINE(HAVE_XTOUCH, , [Building with X touch events])
+fi
+
 PKG_CHECK_MODULES(MUTTER, $MUTTER_PC_MODULES)
 
 AC_PATH_XTRA
@@ -544,6 +588,8 @@ mutter-$VERSION
 	Shape extension:          ${found_shape}
 	Xsync:                    ${found_xsync}
 	Xcursor:                  ${have_xcursor}
+	XInput2:                  ${have_xinput2}
+	Touch events:             ${have_xtouch}
 "
 
 

src/Makefile.am

@@ -78,6 +78,20 @@ libmutter_la_SOURCES =				\
 	core/constraints.h			\
 	core/core.c				\
 	core/delete.c				\
+	core/device.c				\
+	meta/device.h				\
+	core/device-keyboard.c			\
+	core/device-keyboard.h			\
+	core/device-pointer.c			\
+	core/device-pointer.h			\
+	core/device-private.h			\
+	core/device-map.c			\
+	meta/device-map.h			\
+	core/device-map-private.h		\
+	core/device-map-core.c			\
+	core/device-map-core.h			\
+	core/devices-core.c			\
+	core/devices-core.h			\
 	core/display.c				\
 	core/display-private.h			\
 	meta/display.h				\
@@ -100,6 +114,8 @@ libmutter_la_SOURCES =				\
 	meta/group.h				\
 	core/iconcache.c			\
 	core/iconcache.h			\
+	core/input-events.c			\
+	core/input-events.h			\
 	core/keybindings.c			\
 	core/keybindings-private.h		\
 	core/main.c				\
@@ -157,6 +173,14 @@ libmutter_la_SOURCES =				\
 	ui/preview-widget.c			\
 	$(mutter_built_sources)
 
+if HAVE_XINPUT2
+libmutter_la_SOURCES += 			\
+	core/device-map-xi2.c			\
+	core/device-map-xi2.h			\
+	core/devices-xi2.c			\
+	core/devices-xi2.h
+endif
+
 libmutter_la_LDFLAGS = -no-undefined
 libmutter_la_LIBADD  = $(MUTTER_LIBS)
 
@@ -167,6 +191,8 @@ libmutterinclude_base_headers =		\
 	meta/common.h				\
 	meta/compositor-mutter.h		\
 	meta/compositor.h			\
+	meta/device.h				\
+	meta/device-map.h			\
 	meta/display.h				\
 	meta/errors.h				\
 	meta/gradient.h				\

src/compositor/compositor.c

@@ -18,6 +18,8 @@
 #include "meta-background-actor-private.h"
 #include "window-private.h" /* to check window->hidden */
 #include "display-private.h" /* for meta_display_lookup_x_window() */
+#include "core.h" /* for meta_core_select_events() */
+#include "input-events.h"
 #include <X11/extensions/shape.h>
 #include <X11/extensions/Xcomposite.h>
 
@@ -155,7 +157,6 @@ get_output_window (MetaScreen *screen)
   MetaDisplay *display = meta_screen_get_display (screen);
   Display     *xdisplay = meta_display_get_xdisplay (display);
   Window       output, xroot;
-  XWindowAttributes attr;
   long         event_mask;
 
   xroot = meta_screen_get_xroot (screen);
@@ -169,13 +170,7 @@ get_output_window (MetaScreen *screen)
                KeyPressMask | KeyReleaseMask;
 
   output = XCompositeGetOverlayWindow (xdisplay, xroot);
-
-  if (XGetWindowAttributes (xdisplay, output, &attr))
-      {
-        event_mask |= attr.your_event_mask;
-      }
-
-  XSelectInput (xdisplay, output, event_mask);
+  meta_core_select_events (xdisplay, output, event_mask, TRUE);
 
   return output;
 }
@@ -347,26 +342,34 @@ meta_begin_modal_for_plugin (MetaScreen       *screen,
    * 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;
+  gboolean result;
+  MetaDevice     *device;
+  MetaGrabInfo   *grab_info;
 
-  if (compositor->modal_plugin != NULL || display->grab_op != META_GRAB_OP_NONE)
+  /* FIXME: need a real device here, and probably
+   * some exclusion mode for other devices */
+  device = meta_device_map_lookup (display->device_map,
+                                   META_CORE_POINTER_ID);
+
+  grab_info = meta_display_get_grab_info (display, device);
+
+  if (compositor->modal_plugin != NULL || grab_info != NULL)
     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)
+      result = meta_device_grab (device,
+                                 grab_window,
+                                 (ButtonPressMask | ButtonReleaseMask |
+                                  EnterWindowMask | LeaveWindowMask | PointerMotionMask),
+                                 cursor,
+                                 FALSE,
+                                 FALSE,
+                                 timestamp);
+      if (!result)
         goto fail;
 
       pointer_grabbed = TRUE;
@@ -374,22 +377,25 @@ meta_begin_modal_for_plugin (MetaScreen       *screen,
 
   if ((options & META_MODAL_KEYBOARD_ALREADY_GRABBED) == 0)
     {
-      result = XGrabKeyboard (xdpy, grab_window,
-                              False, /* owner_events */
-                              GrabModeAsync, GrabModeAsync,
-                              timestamp);
-
-      if (result != Success)
+      result = meta_device_grab (meta_device_get_paired_device (device),
+                                 grab_window,
+                                 (KeyPressMask | KeyReleaseMask),
+                                 META_CURSOR_DEFAULT,
+                                 FALSE, FALSE,
+                                 timestamp);
+      if (!result)
         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;
+  grab_info = meta_display_create_grab_info (display, device);
+
+  grab_info->grab_op = META_GRAB_OP_COMPOSITOR;
+  grab_info->grab_window = NULL;
+  grab_info->grab_screen = screen;
+  grab_info->grab_have_pointer = TRUE;
+  grab_info->grab_have_keyboard = TRUE;
 
   compositor->modal_plugin = plugin;
 
@@ -397,9 +403,9 @@ meta_begin_modal_for_plugin (MetaScreen       *screen,
 
  fail:
   if (pointer_grabbed)
-    XUngrabPointer (xdpy, timestamp);
+    meta_device_ungrab (device, timestamp);
   if (keyboard_grabbed)
-    XUngrabKeyboard (xdpy, timestamp);
+    meta_device_ungrab (meta_device_get_paired_device (device), timestamp);
 
   return FALSE;
 }
@@ -410,20 +416,19 @@ meta_end_modal_for_plugin (MetaScreen     *screen,
                            guint32         timestamp)
 {
   MetaDisplay    *display    = meta_screen_get_display (screen);
-  Display        *xdpy = meta_display_get_xdisplay (display);
   MetaCompositor *compositor = display->compositor;
+  MetaDevice     *device;
 
   g_return_if_fail (compositor->modal_plugin == plugin);
 
-  XUngrabPointer (xdpy, timestamp);
-  XUngrabKeyboard (xdpy, timestamp);
+  /* FIXME: need a real device here */
+  device = meta_device_map_lookup (display->device_map,
+                                   META_CORE_POINTER_ID);
 
-  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;
+  meta_device_ungrab (device, timestamp);
+  meta_device_ungrab (meta_device_get_paired_device (device), timestamp);
 
+  meta_display_remove_grab_info (display, device);
   compositor->modal_plugin = NULL;
 }
 
@@ -456,7 +461,6 @@ meta_compositor_manage_screen (MetaCompositor *compositor,
   Window          xroot         = meta_screen_get_xroot (screen);
   Window          xwin;
   gint            width, height;
-  XWindowAttributes attr;
   long            event_mask;
   guint           n_retries;
   guint           max_retries;
@@ -531,12 +535,7 @@ meta_compositor_manage_screen (MetaCompositor *compositor,
                KeyPressMask | KeyReleaseMask |
                StructureNotifyMask;
 
-  if (XGetWindowAttributes (xdisplay, xwin, &attr))
-      {
-        event_mask |= attr.your_event_mask;
-      }
-
-  XSelectInput (xdisplay, xwin, event_mask);
+  meta_core_select_events (xdisplay, xwin, event_mask, TRUE);
 
   info->window_group = meta_window_group_new (screen);
   info->background_actor = meta_background_actor_new_for_screen (screen);
@@ -695,9 +694,15 @@ meta_compositor_set_updates (MetaCompositor *compositor,
 }
 
 static gboolean
-is_grabbed_event (XEvent *event)
+is_grabbed_event (MetaDisplay *display,
+                  XEvent      *event)
 {
-  switch (event->xany.type)
+  guint evtype;
+
+  if (!meta_input_event_get_type (display, event, &evtype))
+    return FALSE;
+
+  switch (evtype)
     {
     case ButtonPress:
     case ButtonRelease:
@@ -730,7 +735,8 @@ meta_compositor_process_event (MetaCompositor *compositor,
                                XEvent         *event,
                                MetaWindow     *window)
 {
-  if (compositor->modal_plugin && is_grabbed_event (event))
+  if (compositor->modal_plugin &&
+      is_grabbed_event (compositor->display, event))
     {
       MetaPluginClass *klass = META_PLUGIN_GET_CLASS (compositor->modal_plugin);
 

src/core/bell.c

@@ -230,6 +230,35 @@ bell_flash_window_frame (MetaWindow *window)
       bell_unflash_frame, window->frame, NULL);
 }
 
+static MetaWindow *
+get_flash_window (MetaDisplay *display,
+                  XkbAnyEvent *xkb_ev)
+{
+  XkbBellNotifyEvent *xkb_bell_event;
+  MetaWindow *window;
+
+  g_assert (xkb_ev->xkb_type == XkbBellNotify);
+
+  xkb_bell_event = (XkbBellNotifyEvent *) xkb_ev;
+  window = meta_display_lookup_x_window (display, xkb_bell_event->window);
+
+  if (!window &&
+      g_hash_table_size (display->focus_info) == 1)
+    {
+      GHashTableIter iter;
+      MetaFocusInfo *info;
+
+      /* If there is only one focused window, use it */
+      g_hash_table_iter_init (&iter, display->focus_info);
+
+      if (g_hash_table_iter_next (&iter, NULL, (gpointer *) &info) &&
+          info->focus_window && info->focus_window->frame)
+        window = info->focus_window;
+    }
+
+  return window;
+}
+
 /**
  * Flashes the frame of the focussed window. If there is no focussed window,
  * flashes the screen.
@@ -241,15 +270,11 @@ static void
 bell_flash_frame (MetaDisplay *display, 
 		  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))
-    {
-      window = display->focus_window;
-    }
+  window = get_flash_window (display, xkb_ev);
+
   if (window && window->frame)
     {
       bell_flash_window_frame (window);
@@ -310,9 +335,7 @@ meta_bell_notify (MetaDisplay *display,
       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;
+      window = get_flash_window (display, xkb_ev);
 
       if (window)
         {

src/core/constraints.c

@@ -1363,15 +1363,18 @@ constrain_titlebar_visible (MetaWindow         *window,
   int bottom_amount;
   int horiz_amount_offscreen, vert_amount_offscreen;
   int horiz_amount_onscreen,  vert_amount_onscreen;
+  MetaGrabInfo *grab_info;
 
   if (priority > PRIORITY_TITLEBAR_VISIBLE)
     return TRUE;
 
+  grab_info = window->cur_grab;
+
   /* Allow the titlebar beyond the top of the screen only if the user wasn't
    * clicking on the frame to start the move.
    */
   unconstrained_user_action =
-    info->is_user_action && !window->display->grab_frame_action;
+    info->is_user_action && (!grab_info || !grab_info->grab_frame_action);
 
   /* 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 

src/core/core.c

@@ -27,9 +27,15 @@
 #include "core.h"
 #include "frame.h"
 #include "workspace-private.h"
+#include "input-events.h"
 #include <meta/prefs.h>
 #include <meta/errors.h>
 
+#ifdef HAVE_XINPUT2
+#include <X11/extensions/XInput2.h>
+#include "devices-xi2.h"
+#endif
+
 /* Looks up the MetaWindow representing the frame of the given X window.
  * Used as a helper function by a bunch of the functions below.
  *
@@ -245,9 +251,19 @@ lower_window_and_transients (MetaWindow *window,
 void
 meta_core_user_lower_and_unfocus (Display *xdisplay,
                                   Window   frame_xwindow,
+                                  int      device_id,
                                   guint32  timestamp)
 {
   MetaWindow *window = get_window (xdisplay, frame_xwindow);
+  MetaDevice *pointer;
+
+  pointer = meta_device_map_lookup (window->display->device_map, device_id);
+
+  if (pointer == NULL)
+    return;
+
+  if (!META_IS_DEVICE_POINTER (pointer))
+    pointer = meta_device_get_paired_device (pointer);
 
   lower_window_and_transients (window, NULL);
 
@@ -256,6 +272,7 @@ meta_core_user_lower_and_unfocus (Display *xdisplay,
   * 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,
+                                       pointer,
                                        NULL,
                                        timestamp);
 }
@@ -263,16 +280,21 @@ meta_core_user_lower_and_unfocus (Display *xdisplay,
 void
 meta_core_lower_beneath_grab_window (Display *xdisplay,
                                      Window   xwindow,
+                                     int      device_id,
                                      guint32  timestamp)
 {
   XWindowChanges changes;
   MetaDisplay *display;
   MetaScreen *screen;
   MetaWindow *grab_window;
+  MetaDevice *pointer;
+  MetaGrabInfo *grab_info;
 
   display = meta_display_for_x_display (xdisplay);
   screen = meta_display_screen_for_xwindow (display, xwindow);
-  grab_window = display->grab_window;
+  pointer = meta_device_map_lookup (display->device_map, device_id);
+  grab_info = meta_display_get_grab_info (display, pointer);
+  grab_window = grab_info->grab_window;
 
   if (grab_window == NULL)
     return;
@@ -491,18 +513,27 @@ meta_core_get_active_workspace (Screen *xscreen)
 void
 meta_core_show_window_menu (Display *xdisplay,
                             Window   frame_xwindow,
+                            int      device_id,
                             int      root_x,
                             int      root_y,
                             int      button,
                             guint32  timestamp)
 {
   MetaWindow *window = get_window (xdisplay, frame_xwindow);
-  
+  MetaDevice *device;
+
+  /* There is already a menu popped up,
+   * most likely from another device
+   */
+  if (window->menu)
+    return;
+
   if (meta_prefs_get_raise_on_click ())
     meta_window_raise (window);
   meta_window_focus (window, timestamp);
 
-  meta_window_show_menu (window, root_x, root_y, button, timestamp);
+  device = meta_device_map_lookup (window->display->device_map, device_id);
+  meta_window_show_menu (window, device, root_x, root_y, button, timestamp);
 }
 
 void
@@ -638,6 +669,7 @@ meta_core_get_workspace_name_with_index (Display *xdisplay,
 gboolean
 meta_core_begin_grab_op (Display    *xdisplay,
                          Window      frame_xwindow,
+                         int         device_id,
                          MetaGrabOp  op,
                          gboolean    pointer_already_grabbed,
                          gboolean    frame_action,
@@ -650,13 +682,16 @@ meta_core_begin_grab_op (Display    *xdisplay,
   MetaWindow *window = get_window (xdisplay, frame_xwindow);
   MetaDisplay *display;
   MetaScreen *screen;
-  
+  MetaDevice *device;
+
   display = meta_display_for_x_display (xdisplay);
   screen = meta_display_screen_for_xwindow (display, frame_xwindow);
 
   g_assert (screen != NULL);
-  
-  return meta_display_begin_grab_op (display, screen, window,
+
+  device = meta_device_map_lookup (display->device_map, device_id);
+
+  return meta_display_begin_grab_op (display, screen, window, device,
                                      op, pointer_already_grabbed,
                                      frame_action,
                                      button, modmask,
@@ -665,57 +700,58 @@ meta_core_begin_grab_op (Display    *xdisplay,
 
 void
 meta_core_end_grab_op (Display *xdisplay,
+                       int      device_id,
                        guint32  timestamp)
 {
   MetaDisplay *display;
-  
-  display = meta_display_for_x_display (xdisplay);
+  MetaDevice *device;
 
-  meta_display_end_grab_op (display, timestamp);
+  display = meta_display_for_x_display (xdisplay);
+  device = meta_device_map_lookup (display->device_map, device_id);
+
+  meta_display_end_grab_op (display, device, timestamp);
 }
 
 MetaGrabOp
-meta_core_get_grab_op (Display *xdisplay)
+meta_core_frame_has_grab (Display    *xdisplay,
+                          Window      frame_xwindow,
+                          gint       *device_id,
+                          gint       *button_ret)
 {
-  MetaDisplay *display;
-  
-  display = meta_display_for_x_display (xdisplay);
+  MetaWindow *window;
 
-  return display->grab_op;
+  window = get_window (xdisplay, frame_xwindow);
+
+  if (window != NULL &&
+      window->cur_grab != NULL)
+    {
+      if (button_ret)
+        *button_ret = window->cur_grab->grab_button;
+
+      if (device_id)
+        *device_id = meta_device_get_id (window->cur_grab->grab_pointer);
+
+      return window->cur_grab->grab_op;
+    }
+
+  return META_GRAB_OP_NONE;
 }
 
 Window
-meta_core_get_grab_frame (Display *xdisplay)
+meta_core_get_frame (Display *xdisplay,
+                     Window   client_xwindow)
 {
   MetaDisplay *display;
-  
+  MetaWindow *window;
+
   display = meta_display_for_x_display (xdisplay);
+  window = meta_display_lookup_x_window (display, client_xwindow);
 
-  g_assert (display != NULL);
-  g_assert (display->grab_op == META_GRAB_OP_NONE || 
-            display->grab_screen != NULL);
-  g_assert (display->grab_op == META_GRAB_OP_NONE ||
-            display->grab_screen->display->xdisplay == xdisplay);
-  
-  if (display->grab_op != META_GRAB_OP_NONE &&
-      display->grab_window &&
-      display->grab_window->frame)
-    return display->grab_window->frame->xwindow;
-  else
-    return None;
-}
+  if (window &&
+      window->frame)
+    return window->frame->xwindow;
 
-int
-meta_core_get_grab_button (Display  *xdisplay)
-{
-  MetaDisplay *display;
-  
-  display = meta_display_for_x_display (xdisplay);
-
-  if (display->grab_op == META_GRAB_OP_NONE)
-    return -1;
-  
-  return display->grab_button;
+  return None;
 }
 
 void
@@ -731,13 +767,24 @@ meta_core_grab_buttons  (Display *xdisplay,
 }
 
 void
-meta_core_set_screen_cursor (Display *xdisplay,
-                             Window   frame_on_screen,
-                             MetaCursor cursor)
+meta_core_set_screen_cursor (Display    *xdisplay,
+                             Window      frame_on_screen,
+                             gint        device_id,
+                             MetaCursor  cursor)
 {
   MetaWindow *window = get_window (xdisplay, frame_on_screen);
+  MetaDevice *pointer;
 
-  meta_frame_set_screen_cursor (window->frame, cursor);
+  pointer = meta_device_map_lookup (window->display->device_map,
+                                    device_id);
+
+  if (pointer == NULL)
+    return;
+
+  if (!META_IS_DEVICE_POINTER (pointer))
+    pointer = meta_device_get_paired_device (pointer);
+
+  meta_frame_set_screen_cursor (window->frame, pointer, cursor);
 }
 
 void
@@ -775,3 +822,70 @@ meta_invalidate_default_icons (void)
   g_slist_free (windows);
 }
 
+/* Selects events on an xwindow, using XInput2 if available/in use,
+ * this function doesn't require the xwindow to have a backing
+ * MetaWindow.
+ */
+void
+meta_core_select_events (Display  *xdisplay,
+                         Window    xwindow,
+                         gint      evmask,
+                         gboolean  preserve_old_mask)
+{
+  MetaDisplay *display;
+
+  display = meta_display_for_x_display (xdisplay);
+
+#ifdef HAVE_XINPUT2
+  if (display->have_xinput2)
+    {
+      XIEventMask mask;
+
+      mask.deviceid = XIAllMasterDevices;
+      mask.mask = meta_device_xi2_translate_event_mask (evmask,
+                                                        &mask.mask_len);
+
+      if (preserve_old_mask)
+        {
+          XIEventMask *prev;
+          gint n_masks, i, j;
+
+          prev = XIGetSelectedEvents (xdisplay, xwindow, &n_masks);
+
+          for (i = 0; i < n_masks; i++)
+            {
+              if (prev[i].deviceid != XIAllMasterDevices)
+                continue;
+
+              for (j = 0; j < MIN (mask.mask_len, prev[i].mask_len); j++)
+                mask.mask[j] |= prev[i].mask[j];
+            }
+
+          XFree (prev);
+        }
+
+      XISelectEvents (xdisplay, xwindow, &mask, 1);
+
+      /* Unset any input event so they are only handled via XInput2 */
+      evmask &= ~(META_INPUT_TOUCH_EVENTS_MASK |
+                  KeyPressMask | KeyReleaseMask |
+                  ButtonPressMask | ButtonReleaseMask |
+                  EnterWindowMask | LeaveWindowMask |
+                  PointerMotionMask | PointerMotionHintMask |
+                  Button1MotionMask | Button2MotionMask |
+                  Button3MotionMask | Button4MotionMask |
+                  Button5MotionMask | ButtonMotionMask |
+                  FocusChangeMask);
+    }
+#endif
+
+  if (preserve_old_mask)
+    {
+      XWindowAttributes attr;
+
+      if (XGetWindowAttributes (xdisplay, xwindow, &attr))
+        evmask |= attr.your_event_mask;
+    }
+
+  XSelectInput (xdisplay, xwindow, evmask);
+}

src/core/core.h

@@ -110,6 +110,7 @@ void meta_core_user_raise   (Display *xdisplay,
                              Window   frame_xwindow);
 void meta_core_user_lower_and_unfocus (Display *xdisplay,
                                        Window   frame_xwindow,
+                                       int      device_id,
                                        guint32  timestamp);
 
 void meta_core_user_focus   (Display *xdisplay,
@@ -118,6 +119,7 @@ void meta_core_user_focus   (Display *xdisplay,
 
 void meta_core_lower_beneath_grab_window (Display *xdisplay,
                                           Window   xwindow,
+                                          int      device_id,
                                           guint32  timestamp);
 
 void meta_core_minimize         (Display *xdisplay,
@@ -163,6 +165,7 @@ const char* meta_core_get_workspace_name_with_index (Display *xdisplay,
 
 void meta_core_show_window_menu (Display *xdisplay,
                                  Window   frame_xwindow,
+                                 int      device_id,
                                  int      root_x,
                                  int      root_y,
                                  int      button,
@@ -175,6 +178,7 @@ void meta_core_get_menu_accelerator (MetaMenuOp           menu_op,
 
 gboolean   meta_core_begin_grab_op (Display    *xdisplay,
                                     Window      frame_xwindow,
+                                    int         device_id,
                                     MetaGrabOp  op,
                                     gboolean    pointer_already_grabbed,
                                     gboolean    frame_action,
@@ -184,18 +188,29 @@ gboolean   meta_core_begin_grab_op (Display    *xdisplay,
                                     int         root_x,
                                     int         root_y);
 void       meta_core_end_grab_op   (Display    *xdisplay,
+                                    int         device_id,
                                     guint32     timestamp);
-MetaGrabOp meta_core_get_grab_op     (Display    *xdisplay);
-Window     meta_core_get_grab_frame  (Display   *xdisplay);
-int        meta_core_get_grab_button (Display  *xdisplay);
 
+MetaGrabOp meta_core_frame_has_grab  (Display    *xdisplay,
+                                      Window      frame_xwindow,
+                                      gint       *device_id,
+                                      gint       *button_ret);
+Window     meta_core_get_frame       (Display    *xdisplay,
+                                      Window      client_xwindow);
 
 void       meta_core_grab_buttons  (Display *xdisplay,
                                     Window   frame_xwindow);
 
-void       meta_core_set_screen_cursor (Display *xdisplay,
-                                        Window   frame_on_screen,
-                                        MetaCursor cursor);
+void       meta_core_set_screen_cursor (Display    *xdisplay,
+                                        Window      frame_on_screen,
+                                        int         device_id,
+                                        MetaCursor  cursor);
+
+void       meta_core_select_events     (Display  *xdisplay,
+                                        Window    xwindow,
+                                        gint      evmask,
+                                        gboolean  preserve_old_mask);
+
 
 /* Used because we ignore EnterNotify when a window is unmapped that
  * really shouldn't cause focus changes, by comparing the event serial

src/core/device-keyboard.c

@@ -0,0 +1,69 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/* Keyboard device abstraction */
+
+/*
+ * Copyright (C) 2011 Carlos Garnacho
+ *
+ * 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 "device-keyboard.h"
+
+G_DEFINE_ABSTRACT_TYPE (MetaDeviceKeyboard,
+                        meta_device_keyboard,
+                        META_TYPE_DEVICE)
+
+static void
+meta_device_keyboard_class_init (MetaDeviceKeyboardClass *klass)
+{
+}
+
+static void
+meta_device_keyboard_init (MetaDeviceKeyboard *keyboard)
+{
+}
+
+Window
+meta_device_keyboard_get_focus_window (MetaDeviceKeyboard *keyboard)
+{
+  MetaDeviceKeyboardClass *klass;
+
+  g_return_val_if_fail (META_IS_DEVICE_KEYBOARD (keyboard), None);
+
+  klass = META_DEVICE_KEYBOARD_GET_CLASS (keyboard);
+
+  if (!klass->get_focus_window)
+    return None;
+
+  return (klass->get_focus_window) (keyboard);
+}
+
+void
+meta_device_keyboard_set_focus_window (MetaDeviceKeyboard *keyboard,
+                                       Window              xwindow,
+                                       Time                timestamp)
+{
+  MetaDeviceKeyboardClass *klass;
+
+  g_return_if_fail (META_IS_DEVICE_KEYBOARD (keyboard));
+
+  klass = META_DEVICE_KEYBOARD_GET_CLASS (keyboard);
+
+  if (klass->set_focus_window)
+    (klass->set_focus_window) (keyboard, xwindow, timestamp);
+}

src/core/device-keyboard.h

@@ -0,0 +1,69 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/**
+ * \file device-keyboard.h  Keyboard device abstraction
+ *
+ * Input devices.
+ * This file contains the internal abstraction of keyboard devices so
+ * XInput2/core events can be handled similarly.
+ */
+
+/*
+ * Copyright (C) 2011 Carlos Garnacho
+ *
+ * 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_DEVICE_KEYBOARD_H
+#define META_DEVICE_KEYBOARD_H
+
+#include "display-private.h"
+#include "device-private.h"
+
+#define META_TYPE_DEVICE_KEYBOARD            (meta_device_keyboard_get_type ())
+#define META_DEVICE_KEYBOARD(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_DEVICE_KEYBOARD, MetaDeviceKeyboard))
+#define META_DEVICE_KEYBOARD_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  META_TYPE_DEVICE_KEYBOARD, MetaDeviceKeyboardClass))
+#define META_IS_DEVICE_KEYBOARD(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_DEVICE_KEYBOARD))
+#define META_IS_DEVICE_KEYBOARD_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  META_TYPE_DEVICE_KEYBOARD))
+#define META_DEVICE_KEYBOARD_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  META_TYPE_DEVICE_KEYBOARD, MetaDeviceKeyboardClass))
+
+typedef struct _MetaDeviceKeyboard MetaDeviceKeyboard;
+typedef struct _MetaDeviceKeyboardClass MetaDeviceKeyboardClass;
+
+struct _MetaDeviceKeyboard
+{
+  MetaDevice parent_instance;
+};
+
+struct _MetaDeviceKeyboardClass
+{
+  MetaDeviceClass parent_instance;
+
+  Window (* get_focus_window) (MetaDeviceKeyboard *keyboard);
+  void   (* set_focus_window) (MetaDeviceKeyboard *keyboard,
+                               Window              xwindow,
+                               Time                timestamp);
+};
+
+GType    meta_device_keyboard_get_type   (void) G_GNUC_CONST;
+
+Window   meta_device_keyboard_get_focus_window (MetaDeviceKeyboard *keyboard);
+void     meta_device_keyboard_set_focus_window (MetaDeviceKeyboard *keyboard,
+                                                Window              xwindow,
+                                                Time                timestamp);
+
+
+#endif /* META_DEVICE_KEYBOARD_H */

src/core/device-map-core.c

@@ -0,0 +1,134 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/* Input device map, core protocol implementation */
+
+/*
+ * Copyright (C) 2011 Carlos Garnacho
+ *
+ * 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 "device-map-core.h"
+#include "devices-core.h"
+
+G_DEFINE_TYPE (MetaDeviceMapCore, meta_device_map_core, META_TYPE_DEVICE_MAP)
+
+static gboolean
+meta_device_map_core_grab_key (MetaDeviceMap *device_map,
+                               Window         xwindow,
+                               guint          keycode,
+                               guint          modifiers,
+                               gboolean       sync)
+{
+  MetaDisplay *display;
+  gint retval;
+
+  display = meta_device_map_get_display (device_map);
+  retval = XGrabKey (display->xdisplay, keycode, modifiers,
+                     xwindow, True,
+                     GrabModeAsync, /* Never care about the other device */
+                     (sync) ? GrabModeSync : GrabModeAsync);
+
+  return (retval == Success);
+}
+
+static void
+meta_device_map_core_ungrab_key (MetaDeviceMap *device_map,
+                                 Window         xwindow,
+                                 guint          keycode,
+                                 guint          modifiers)
+{
+  MetaDisplay *display;
+
+  display = meta_device_map_get_display (device_map);
+  XUngrabKey (display->xdisplay, keycode, modifiers, xwindow);
+}
+
+static gboolean
+meta_device_map_core_grab_button (MetaDeviceMap *device_map,
+                                  Window         xwindow,
+                                  guint          n_button,
+                                  guint          modifiers,
+                                  guint          evmask,
+                                  gboolean       sync)
+{
+  MetaDisplay *display;
+  gint retval;
+
+  display = meta_device_map_get_display (device_map);
+  retval = XGrabButton (display->xdisplay, n_button,
+                        modifiers, xwindow, False,
+                        evmask,
+                        (sync) ? GrabModeSync : GrabModeAsync,
+                        GrabModeAsync, /* Never care about the other device */
+                        None, None);
+
+  return (retval == Success);
+}
+
+static void
+meta_device_map_core_ungrab_button (MetaDeviceMap *device_map,
+                                    Window         xwindow,
+                                    guint          n_button,
+                                    guint          modifiers)
+{
+  MetaDisplay *display;
+
+  display = meta_device_map_get_display (device_map);
+  XUngrabButton (display->xdisplay, n_button, modifiers, xwindow);
+}
+
+static void
+meta_device_map_core_constructed (GObject *object)
+{
+  MetaDeviceMap *device_map = META_DEVICE_MAP (object);
+  MetaDevice *pointer, *keyboard;
+  MetaDisplay *display;
+
+  display = meta_device_map_get_display (device_map);
+
+  /* Insert core devices */
+  pointer = meta_device_pointer_core_new (display);
+  meta_device_map_add_device (device_map, pointer);
+
+  keyboard = meta_device_keyboard_core_new (display);
+  meta_device_map_add_device (device_map, keyboard);
+
+  meta_device_pair_devices (pointer, keyboard);
+
+  g_object_unref (pointer);
+  g_object_unref (keyboard);
+}
+
+static void
+meta_device_map_core_class_init (MetaDeviceMapCoreClass *klass)
+{
+  MetaDeviceMapClass *device_map_class = META_DEVICE_MAP_CLASS (klass);
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->constructed = meta_device_map_core_constructed;
+
+  device_map_class->grab_key = meta_device_map_core_grab_key;
+  device_map_class->ungrab_key = meta_device_map_core_ungrab_key;
+  device_map_class->grab_button = meta_device_map_core_grab_button;
+  device_map_class->ungrab_button = meta_device_map_core_ungrab_button;
+}
+
+static void
+meta_device_map_core_init (MetaDeviceMapCore *device_map)
+{
+}

src/core/device-map-core.h

@@ -0,0 +1,56 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/**
+ * \file device-map-core.h  device map for core devices
+ *
+ * Input devices.
+ * This file contains the core protocol implementation of the device map
+ */
+
+/*
+ * Copyright (C) 2011 Carlos Garnacho
+ *
+ * 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_DEVICE_MAP_CORE_H
+#define META_DEVICE_MAP_CORE_H
+
+typedef struct _MetaDeviceMapCore MetaDeviceMapCore;
+typedef struct _MetaDeviceMapCoreClass MetaDeviceMapCoreClass;
+
+#include "device-map-private.h"
+
+#define META_TYPE_DEVICE_MAP_CORE            (meta_device_map_core_get_type ())
+#define META_DEVICE_MAP_CORE(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_DEVICE_MAP_CORE, MetaDeviceMapCore))
+#define META_DEVICE_MAP_CORE_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  META_TYPE_DEVICE_MAP_CORE, MetaDeviceMapCoreClass))
+#define META_IS_DEVICE_MAP_CORE(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_DEVICE_MAP_CORE))
+#define META_IS_DEVICE_MAP_CORE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  META_TYPE_DEVICE_MAP_CORE))
+#define META_DEVICE_MAP_CORE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  META_TYPE_DEVICE_MAP_CORE, MetaDeviceMapCoreClass))
+
+struct _MetaDeviceMapCore
+{
+  MetaDeviceMap parent_instance;
+};
+
+struct _MetaDeviceMapCoreClass
+{
+  MetaDeviceMapClass parent_class;
+};
+
+GType           meta_device_map_core_get_type (void) G_GNUC_CONST;
+
+#endif /* META_DEVICE_MAP_CORE_H */

src/core/device-map-private.h

@@ -0,0 +1,120 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/**
+ * \file device-map.h  object containing input devices
+ *
+ * Input devices.
+ * This file contains the device map, used to find out the device behind
+ * XInput2/core events.
+ */
+
+/*
+ * Copyright (C) 2011 Carlos Garnacho
+ *
+ * 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_DEVICE_MAP_PRIVATE_H
+#define META_DEVICE_MAP_PRIVATE_H
+
+#include <meta/device-map.h>
+#include <meta/device.h>
+#include "display-private.h"
+#include "device-private.h"
+
+/* Device IDs for Virtual Core Pointer/Keyboard,
+ * use only in case of emergency.
+ */
+#define META_CORE_POINTER_ID  2
+#define META_CORE_KEYBOARD_ID 3
+
+struct _MetaDeviceMap
+{
+  GObject parent_instance;
+  gpointer priv;
+};
+
+struct _MetaDeviceMapClass
+{
+  GObjectClass parent_instance;
+
+  void (* device_added)   (MetaDeviceMap *device_map,
+                           MetaDevice    *device);
+  void (* device_removed) (MetaDeviceMap *device_map,
+                           MetaDevice    *device);
+
+  gboolean (* grab_key)       (MetaDeviceMap *device_map,
+                               Window         xwindow,
+                               guint          keycode,
+                               guint          modifiers,
+                               gboolean       sync);
+  void     (* ungrab_key)     (MetaDeviceMap *device_map,
+                               Window         xwindow,
+                               guint          keycode,
+                               guint          modifiers);
+
+  gboolean (* grab_button)    (MetaDeviceMap *device_map,
+                               Window         xwindow,
+                               guint          n_button,
+                               guint          modifiers,
+                               guint          evmask,
+                               gboolean       sync);
+  void     (* ungrab_button)  (MetaDeviceMap *pointer,
+                               Window         xwindow,
+                               guint          n_button,
+                               guint          modifiers);
+  void     (* grab_touch)     (MetaDeviceMap *pointer,
+                               Window         xwindow);
+  void     (* ungrab_touch)   (MetaDeviceMap *pointer,
+                               Window         xwindow);
+};
+
+GType           meta_device_map_get_type (void) G_GNUC_CONST;
+
+MetaDeviceMap * meta_device_map_new    (MetaDisplay   *display,
+                                        gboolean       force_core);
+
+void            meta_device_map_add_device    (MetaDeviceMap *device_map,
+                                               MetaDevice    *device);
+void            meta_device_map_remove_device (MetaDeviceMap *device_map,
+                                               MetaDevice    *device);
+
+gboolean meta_device_map_grab_key        (MetaDeviceMap      *device_map,
+                                          Window              xwindow,
+                                          guint               keycode,
+                                          guint               modifiers,
+                                          gboolean            sync);
+void     meta_device_map_ungrab_key      (MetaDeviceMap      *device_map,
+                                          Window              xwindow,
+                                          guint               keycode,
+                                          guint               modifiers);
+gboolean meta_device_map_grab_button     (MetaDeviceMap      *device_map,
+                                          Window              xwindow,
+                                          guint               n_button,
+                                          guint               modifiers,
+                                          guint               evmask,
+                                          gboolean            sync);
+void     meta_device_map_ungrab_button   (MetaDeviceMap      *device_map,
+                                          Window              xwindow,
+                                          guint               n_button,
+                                          guint               modifiers);
+
+void     meta_device_map_grab_touch      (MetaDeviceMap      *device_map,
+                                          Window              xwindow);
+void     meta_device_map_ungrab_touch    (MetaDeviceMap      *device_map,
+                                          Window              xwindow);
+
+#endif /* META_DEVICE_MAP_PRIVATE_H */

src/core/device-map-xi2.c

@@ -0,0 +1,323 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/* Input device map, XInput2 implementation */
+
+/*
+ * Copyright (C) 2011 Carlos Garnacho
+ *
+ * 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 "device-map-xi2.h"
+#include <X11/extensions/XInput2.h>
+#include "devices-xi2.h"
+#include "input-events.h"
+
+#define XINPUT2_VERSION_MAJOR 2
+#define XINPUT2_VERSION_MINOR 0
+
+G_DEFINE_TYPE (MetaDeviceMapXI2, meta_device_map_xi2, META_TYPE_DEVICE_MAP)
+
+static gboolean
+meta_device_map_xi2_grab_key (MetaDeviceMap *device_map,
+                              Window         xwindow,
+                              guint          keycode,
+                              guint          modifiers,
+                              gboolean       sync)
+{
+  XIGrabModifiers mods = { modifiers, 0 };
+  MetaDisplay *display;
+  XIEventMask mask;
+  gint retval;
+
+  display = meta_device_map_get_display (device_map);
+
+  mask.deviceid = XIAllMasterDevices;
+  mask.mask = meta_device_xi2_translate_event_mask (KeyPressMask |
+                                                    KeyReleaseMask,
+                                                    &mask.mask_len);
+
+  retval = XIGrabKeycode (display->xdisplay,
+                          XIAllMasterDevices,
+                          keycode, xwindow,
+                          (sync) ? GrabModeSync : GrabModeAsync,
+                          GrabModeAsync, /* Never care about the other device */
+                          True, &mask, 1, &mods);
+
+  return (retval == Success);
+}
+
+static void
+meta_device_map_xi2_ungrab_key (MetaDeviceMap *device_map,
+                                Window         xwindow,
+                                guint          keycode,
+                                guint          modifiers)
+{
+  XIGrabModifiers mods = { modifiers, 0 };
+  MetaDisplay *display;
+
+  display = meta_device_map_get_display (device_map);
+  XIUngrabKeycode (display->xdisplay,
+                   XIAllMasterDevices,
+                   keycode, xwindow,
+                   1, &mods);
+}
+
+static gboolean
+meta_device_map_xi2_grab_button (MetaDeviceMap *device_map,
+                                 Window         xwindow,
+                                 guint          n_button,
+                                 guint          modifiers,
+                                 guint          evmask,
+                                 gboolean       sync)
+{
+  XIGrabModifiers mods = { modifiers, 0 };
+  XIEventMask mask;
+  MetaDisplay *display;
+  int retval;
+
+  display = meta_device_map_get_display (device_map);
+
+  mask.deviceid = XIAllMasterDevices;
+  mask.mask = meta_device_xi2_translate_event_mask (evmask, &mask.mask_len);
+
+  retval = XIGrabButton (display->xdisplay,
+                         XIAllMasterDevices,
+                         n_button, xwindow, None,
+                         (sync) ? GrabModeSync : GrabModeAsync,
+                         GrabModeAsync, /* Never care about the other device */
+                         False, &mask, 1, &mods);
+
+  return (retval == Success);
+}
+
+static void
+meta_device_map_xi2_ungrab_button (MetaDeviceMap *device_map,
+                                   Window         xwindow,
+                                   guint          n_button,
+                                   guint          modifiers)
+{
+  XIGrabModifiers mods = { modifiers, 0 };
+  MetaDisplay *display;
+
+  display = meta_device_map_get_display (device_map);
+  XIUngrabButton (display->xdisplay,
+                  XIAllMasterDevices,
+                  n_button, xwindow, 1, &mods);
+}
+
+static MetaDevice *
+create_device_from_info (MetaDeviceMap *device_map,
+                         gint           use,
+                         gint           device_id)
+{
+  MetaDevice *device = NULL;
+  MetaDisplay *display;
+
+  display = meta_device_map_get_display (device_map);
+
+  if (use == XIMasterPointer ||
+      use == XISlavePointer)
+    device = meta_device_pointer_xi2_new (display, device_id);
+  else if (use == XIMasterKeyboard)
+    device = meta_device_keyboard_xi2_new (display, device_id);
+
+  return device;
+}
+
+static void
+pair_devices (gpointer key,
+              gpointer value,
+              gpointer user_data)
+{
+  MetaDevice *device1, *device2;
+  MetaDeviceMap *device_map;
+
+  device_map = user_data;
+  device1 = meta_device_map_lookup (device_map, GPOINTER_TO_INT (key));
+  device2 = meta_device_map_lookup (device_map, GPOINTER_TO_INT (value));
+
+  meta_device_pair_devices (device1, device2);
+}
+
+static void
+meta_device_map_xi2_constructed (GObject *object)
+{
+  MetaDeviceMap *device_map = META_DEVICE_MAP (object);
+  MetaDisplay *display;
+  XIDeviceInfo *info;
+  GHashTable *pairs;
+  int n_devices, i;
+
+  display = meta_device_map_get_display (device_map);
+
+  /* We're only interested in master devices,
+   * detached slave devices are left for applications
+   * to handle.
+   */
+  info = XIQueryDevice (display->xdisplay, XIAllDevices, &n_devices);
+  pairs = g_hash_table_new (NULL, NULL);
+
+  for (i = 0; i < n_devices; i++)
+    {
+      MetaDevice *device;
+
+      device = create_device_from_info (device_map, info[i].use,
+                                        info[i].deviceid);
+      if (device)
+        {
+          meta_device_map_add_device (device_map, device);
+
+          if (info[i].use == XIMasterPointer ||
+              info[i].use == XIMasterKeyboard)
+            g_hash_table_insert (pairs,
+                                 GINT_TO_POINTER (info[i].deviceid),
+                                 GINT_TO_POINTER (info[i].attachment));
+
+          g_object_unref (device);
+        }
+    }
+
+  g_hash_table_foreach (pairs, pair_devices, device_map);
+  g_hash_table_destroy (pairs);
+
+  XIFreeDeviceInfo (info);
+}
+
+static void
+meta_device_map_xi2_grab_touch (MetaDeviceMap *device_map,
+                                Window         xwindow)
+{
+  XIGrabModifiers unused = { 0 };
+  MetaDisplay *display;
+  XIEventMask mask;
+
+  display = meta_device_map_get_display (device_map);
+
+  g_message ("Grabbing passively on touch begin\n");
+
+  mask.deviceid = XIAllMasterDevices;
+  mask.mask = meta_device_xi2_translate_event_mask (META_INPUT_TOUCH_EVENTS_MASK |
+                                                    ButtonPressMask |
+                                                    ButtonReleaseMask |
+                                                    PointerMotionMask |
+                                                    KeyPressMask |
+                                                    KeyReleaseMask,
+                                                    &mask.mask_len);
+  XIGrabTouchBegin (display->xdisplay,
+                    XIAllMasterDevices,
+                    xwindow, True,
+                    &mask, 1, &unused);
+}
+
+static void
+meta_device_map_xi2_ungrab_touch (MetaDeviceMap *device_map,
+                                  Window         xwindow)
+{
+  XIGrabModifiers unused = { 0 };
+  MetaDisplay *display;
+
+  display = meta_device_map_get_display (device_map);
+  XIUngrabTouchBegin (display->xdisplay,
+                      XIAllMasterDevices,
+                      xwindow, 0, &unused);
+}
+
+static void
+meta_device_map_xi2_class_init (MetaDeviceMapXI2Class *klass)
+{
+  MetaDeviceMapClass *device_map_class = META_DEVICE_MAP_CLASS (klass);
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->constructed = meta_device_map_xi2_constructed;
+
+  device_map_class->grab_key = meta_device_map_xi2_grab_key;
+  device_map_class->ungrab_key = meta_device_map_xi2_ungrab_key;
+  device_map_class->grab_button = meta_device_map_xi2_grab_button;
+  device_map_class->ungrab_button = meta_device_map_xi2_ungrab_button;
+  device_map_class->grab_touch = meta_device_map_xi2_grab_touch;
+  device_map_class->ungrab_touch = meta_device_map_xi2_ungrab_touch;
+}
+
+static void
+meta_device_map_xi2_init (MetaDeviceMapXI2 *device_map)
+{
+}
+
+gboolean
+meta_device_map_xi2_handle_hierarchy_event (MetaDeviceMapXI2 *device_map,
+                                            XEvent           *ev)
+{
+  MetaDisplay *display;
+
+  display = meta_device_map_get_display (META_DEVICE_MAP (device_map));
+
+  if (ev->type == GenericEvent &&
+      ev->xcookie.extension == display->xinput2_opcode)
+    {
+      XIHierarchyEvent *xev;
+      GHashTable *pairs;
+      gint i;
+
+      g_assert (display->have_xinput2 == TRUE);
+
+      xev = (XIHierarchyEvent *) ev->xcookie.data;
+
+      if (xev->evtype != XI_HierarchyChanged)
+        return FALSE;
+
+      pairs = g_hash_table_new (NULL, NULL);
+
+      for (i = 0; i < xev->num_info; i++)
+        {
+          if (xev->info[i].flags & XIMasterAdded ||
+              xev->info[i].flags & XISlaveAdded)
+            {
+              MetaDevice *device;
+
+              device = create_device_from_info (META_DEVICE_MAP (device_map),
+                                                xev->info[i].use,
+                                                xev->info[i].deviceid);
+
+              if (device &&
+                  xev->info[i].flags & XIMasterAdded)
+                g_hash_table_insert (pairs,
+                                     GINT_TO_POINTER (xev->info[i].deviceid),
+                                     GINT_TO_POINTER (xev->info[i].attachment));
+            }
+          else if (xev->info[i].flags & XIMasterRemoved ||
+                   xev->info[i].flags & XISlaveRemoved)
+            {
+              MetaDevice *device;
+
+              device = meta_device_map_lookup (META_DEVICE_MAP (device_map),
+                                               xev->info[i].deviceid);
+
+              if (device)
+                meta_device_map_remove_device (META_DEVICE_MAP (device_map),
+                                               device);
+            }
+        }
+
+      g_hash_table_foreach (pairs, pair_devices, device_map);
+      g_hash_table_destroy (pairs);
+
+      return TRUE;
+    }
+
+  return FALSE;
+}

src/core/device-map-xi2.h

@@ -0,0 +1,59 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/**
+ * \file device-map-xi2.h  device map for XInput2 devices
+ *
+ * Input devices.
+ * This file contains the XInput2 implementation of the device map
+ */
+
+/*
+ * Copyright (C) 2011 Carlos Garnacho
+ *
+ * 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_DEVICE_MAP_XI2_H
+#define META_DEVICE_MAP_XI2_H
+
+typedef struct _MetaDeviceMapXI2 MetaDeviceMapXI2;
+typedef struct _MetaDeviceMapXI2Class MetaDeviceMapXI2Class;
+
+#include "device-map-private.h"
+
+#define META_TYPE_DEVICE_MAP_XI2            (meta_device_map_xi2_get_type ())
+#define META_DEVICE_MAP_XI2(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_DEVICE_MAP_XI2, MetaDeviceMapXI2))
+#define META_DEVICE_MAP_XI2_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  META_TYPE_DEVICE_MAP_XI2, MetaDeviceMapXI2Class))
+#define META_IS_DEVICE_MAP_XI2(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_DEVICE_MAP_XI2))
+#define META_IS_DEVICE_MAP_XI2_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  META_TYPE_DEVICE_MAP_XI2))
+#define META_DEVICE_MAP_XI2_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  META_TYPE_DEVICE_MAP_XI2, MetaDeviceMapXI2Class))
+
+struct _MetaDeviceMapXI2
+{
+  MetaDeviceMap parent_instance;
+};
+
+struct _MetaDeviceMapXI2Class
+{
+  MetaDeviceMapClass parent_class;
+};
+
+GType           meta_device_map_xi2_get_type        (void) G_GNUC_CONST;
+
+gboolean meta_device_map_xi2_handle_hierarchy_event (MetaDeviceMapXI2 *device_map,
+                                                     XEvent           *ev);
+
+#endif /* META_DEVICE_MAP_XI2_H */

src/core/device-map.c

@@ -0,0 +1,429 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/* Input device map */
+
+/*
+ * Copyright (C) 2011 Carlos Garnacho
+ *
+ * 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 "device-map-private.h"
+#include "device-map-core.h"
+
+#ifdef HAVE_XINPUT2
+#include <X11/extensions/XInput2.h>
+#include "device-map-xi2.h"
+
+#define XINPUT2_VERSION_MAJOR 2
+#define XINPUT2_VERSION_MINOR 0
+#endif
+
+G_DEFINE_TYPE (MetaDeviceMap, meta_device_map, G_TYPE_OBJECT)
+
+typedef struct MetaDeviceMapPrivate MetaDeviceMapPrivate;
+
+struct MetaDeviceMapPrivate
+{
+  MetaDisplay *display;
+  GHashTable *devices;
+};
+
+enum {
+  PROP_0,
+  PROP_DISPLAY
+};
+
+enum {
+  DEVICE_ADDED,
+  DEVICE_REMOVED,
+  LAST_SIGNAL
+};
+
+static guint signals[LAST_SIGNAL] = { 0 };
+
+static void
+meta_device_map_get_property (GObject    *object,
+                              guint       param_id,
+                              GValue     *value,
+                              GParamSpec *pspec)
+{
+  MetaDeviceMapPrivate *priv;
+
+  priv = META_DEVICE_MAP (object)->priv;
+
+  switch (param_id)
+    {
+    case PROP_DISPLAY:
+      g_value_set_object (value, priv->display);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
+      break;
+    }
+}
+
+static void
+meta_device_map_set_property (GObject      *object,
+                              guint         param_id,
+                              const GValue *value,
+                              GParamSpec   *pspec)
+{
+  MetaDeviceMapPrivate *priv;
+
+  priv = META_DEVICE_MAP (object)->priv;
+
+  switch (param_id)
+    {
+    case PROP_DISPLAY:
+      priv->display = g_value_get_object (value);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
+      break;
+    }
+}
+
+static void
+meta_device_map_finalize (GObject *object)
+{
+  MetaDeviceMapPrivate *priv;
+  GHashTableIter iter;
+  MetaDevice *device;
+
+  priv = META_DEVICE_MAP (object)->priv;
+  g_hash_table_iter_init (&iter, priv->devices);
+
+  while (g_hash_table_iter_next (&iter, NULL, (gpointer *) &device))
+    {
+      /* Detach the device */
+      g_hash_table_iter_steal (&iter);
+
+      g_signal_emit (object, signals[DEVICE_REMOVED], 0, device);
+      g_object_unref (device);
+    }
+
+  g_hash_table_destroy (priv->devices);
+  G_OBJECT_CLASS (meta_device_map_parent_class)->finalize (object);
+}
+
+static void
+meta_device_map_class_init (MetaDeviceMapClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->get_property = meta_device_map_get_property;
+  object_class->set_property = meta_device_map_set_property;
+  object_class->finalize = meta_device_map_finalize;
+
+  g_object_class_install_property (object_class,
+                                   PROP_DISPLAY,
+                                   g_param_spec_object ("display",
+                                                        "Display",
+                                                        "Display",
+                                                        META_TYPE_DISPLAY,
+                                                        G_PARAM_READWRITE |
+                                                        G_PARAM_CONSTRUCT_ONLY));
+  signals[DEVICE_ADDED] =
+    g_signal_new ("device-added",
+                  G_TYPE_FROM_CLASS (klass),
+                  G_SIGNAL_RUN_LAST,
+                  0,
+                  NULL, NULL,
+                  g_cclosure_marshal_VOID__OBJECT,
+                  G_TYPE_NONE, 1, META_TYPE_DEVICE);
+  signals[DEVICE_REMOVED] =
+    g_signal_new ("device-removed",
+                  G_TYPE_FROM_CLASS (klass),
+                  G_SIGNAL_RUN_LAST,
+                  0,
+                  NULL, NULL,
+                  g_cclosure_marshal_VOID__OBJECT,
+                  G_TYPE_NONE, 1, META_TYPE_DEVICE);
+
+  g_type_class_add_private (klass, sizeof (MetaDeviceMapPrivate));
+}
+
+static void
+meta_device_map_init (MetaDeviceMap *device_map)
+{
+  MetaDeviceMapPrivate *priv;
+
+  priv = device_map->priv = G_TYPE_INSTANCE_GET_PRIVATE (device_map,
+                                                         META_TYPE_DEVICE_MAP,
+                                                         MetaDeviceMapPrivate);
+  priv->devices = g_hash_table_new_full (NULL, NULL, NULL,
+                                         (GDestroyNotify) g_object_unref);
+}
+
+void
+meta_device_map_add_device (MetaDeviceMap *device_map,
+                            MetaDevice    *device)
+{
+  MetaDeviceMapPrivate *priv;
+
+  priv = device_map->priv;
+  g_hash_table_insert (priv->devices,
+                       GINT_TO_POINTER (meta_device_get_id (device)),
+                       g_object_ref (device));
+
+  g_signal_emit (device_map, signals[DEVICE_ADDED], 0, device);
+}
+
+void
+meta_device_map_remove_device (MetaDeviceMap *device_map,
+                               MetaDevice    *device)
+{
+  MetaDeviceMapPrivate *priv;
+
+  priv = device_map->priv;
+
+  if (g_hash_table_steal (priv->devices,
+                          GINT_TO_POINTER (meta_device_get_id (device))))
+    {
+      g_signal_emit (device_map, signals[DEVICE_REMOVED], 0, device);
+      g_object_unref (device);
+    }
+}
+
+
+#ifdef HAVE_XINPUT2
+
+static gboolean
+initialize_xinput (MetaDisplay *display)
+{
+  int major, minor, opcode;
+  int unused;
+
+  if (!XQueryExtension (display->xdisplay,
+                        "XInputExtension",
+                        &opcode, &unused, &unused))
+    return FALSE;
+
+  major = XI_2_Major;
+#ifdef HAVE_XTOUCH
+  minor = XI_2_1_Minor;
+#else
+  minor = XI_2_Minor;
+#endif /* HAVE_XTOUCH */
+
+  XIQueryVersion (display->xdisplay, &major, &minor);
+
+  if (major == XI_2_Major &&
+      (
+#ifdef HAVE_XTOUCH
+       minor == XI_2_1_Minor ||
+#endif /* HAVE_XTOUCH */
+       minor == XI_2_Minor))
+    {
+      display->have_xinput2 = TRUE;
+      display->have_xtouch = (minor >= XI_2_1_Minor);
+      display->xinput2_opcode = opcode;
+
+      return TRUE;
+    }
+
+  return FALSE;
+}
+
+#endif /* HAVE_XINPUT2 */
+
+MetaDeviceMap *
+meta_device_map_new (MetaDisplay *display,
+                     gboolean     force_core)
+{
+  GType type = META_TYPE_DEVICE_MAP_CORE;
+
+#ifdef HAVE_XINPUT2
+  if (!force_core &&
+      initialize_xinput (display))
+    type = META_TYPE_DEVICE_MAP_XI2;
+#endif
+
+  return g_object_new (type,
+                       "display", display,
+                       NULL);
+}
+
+/**
+ * meta_device_map_lookup:
+ * @device_map: a #MetaDeviceMap
+ * @device_id: ID for a device
+ *
+ * returns the device corresponding to @device_id
+ *
+ * Returns: (transfer none): (allow-none): The matching device, or %NULL.
+ **/
+MetaDevice *
+meta_device_map_lookup (MetaDeviceMap *device_map,
+                        gint           device_id)
+{
+  MetaDeviceMapPrivate *priv;
+
+  g_return_val_if_fail (META_IS_DEVICE_MAP (device_map), NULL);
+
+  priv = device_map->priv;
+  return g_hash_table_lookup (priv->devices,
+                              GINT_TO_POINTER (device_id));
+}
+
+/**
+ * meta_device_map_get_display:
+ * @device_map: a #MetaDeviceMap
+ *
+ * Returns the #MetaDisplay to which @device_map belongs to.
+ *
+ * Returns: (transfer none): The #MetaDisplay.
+ **/
+MetaDisplay *
+meta_device_map_get_display (MetaDeviceMap *device_map)
+{
+  MetaDeviceMapPrivate *priv;
+
+  g_return_val_if_fail (META_IS_DEVICE_MAP (device_map), NULL);
+
+  priv = device_map->priv;
+  return priv->display;
+}
+
+/**
+ * meta_device_map_list_devices:
+ * @device_map: a #MetaDeviceMap
+ *
+ * Returns the list of devices that @device_map holds.
+ *
+ * Returns: (element-type Meta.Device) (transfer container): the list
+ *          of devices, the contained objects are owned by @device_map
+ *          and should not be unref'ed. The list must be freed with
+ *          g_list_free().
+ **/
+GList *
+meta_device_map_list_devices (MetaDeviceMap *device_map)
+{
+  MetaDeviceMapPrivate *priv;
+
+  g_return_val_if_fail (META_IS_DEVICE_MAP (device_map), NULL);
+
+  priv = device_map->priv;
+  return g_hash_table_get_values (priv->devices);
+}
+
+gboolean
+meta_device_map_grab_key (MetaDeviceMap *device_map,
+                          Window         xwindow,
+                          guint          keycode,
+                          guint          modifiers,
+                          gboolean       sync)
+{
+  MetaDeviceMapClass *klass;
+
+  g_return_val_if_fail (META_IS_DEVICE_MAP (device_map), FALSE);
+  g_return_val_if_fail (xwindow != None, FALSE);
+
+  klass = META_DEVICE_MAP_GET_CLASS (device_map);
+
+  if (!klass->grab_key)
+    return FALSE;
+
+  return (klass->grab_key) (device_map, xwindow, keycode, modifiers, sync);
+}
+
+void
+meta_device_map_ungrab_key (MetaDeviceMap *device_map,
+                            Window         xwindow,
+                            guint          keycode,
+                            guint          modifiers)
+{
+  MetaDeviceMapClass *klass;
+
+  g_return_if_fail (META_IS_DEVICE_MAP (device_map));
+  g_return_if_fail (xwindow != None);
+
+  klass = META_DEVICE_MAP_GET_CLASS (device_map);
+
+  if (klass->ungrab_key)
+    (klass->ungrab_key) (device_map, xwindow, keycode, modifiers);
+}
+
+gboolean
+meta_device_map_grab_button (MetaDeviceMap *device_map,
+                             Window         xwindow,
+                             guint          n_button,
+                             guint          modifiers,
+                             guint          evmask,
+                             gboolean       sync)
+{
+  MetaDeviceMapClass *klass;
+
+  g_return_val_if_fail (META_IS_DEVICE_MAP (device_map), FALSE);
+  g_return_val_if_fail (xwindow != None, FALSE);
+
+  klass = META_DEVICE_MAP_GET_CLASS (device_map);
+
+  if (!klass->grab_button)
+    return FALSE;
+
+  return (klass->grab_button) (device_map, xwindow, n_button,
+                               modifiers, evmask, sync);
+}
+
+void
+meta_device_map_ungrab_button (MetaDeviceMap *device_map,
+                               Window         xwindow,
+                               guint          n_button,
+                               guint          modifiers)
+{
+  MetaDeviceMapClass *klass;
+
+  g_return_if_fail (META_IS_DEVICE_MAP (device_map));
+  g_return_if_fail (xwindow != None);
+
+  klass = META_DEVICE_MAP_GET_CLASS (device_map);
+
+  if (klass->ungrab_button)
+    (klass->ungrab_button) (device_map, xwindow, n_button, modifiers);
+}
+
+void
+meta_device_map_grab_touch (MetaDeviceMap *device_map,
+                            Window         xwindow)
+{
+  MetaDeviceMapClass *klass;
+
+  g_return_if_fail (META_IS_DEVICE_MAP (device_map));
+  g_return_if_fail (xwindow != None);
+
+  klass = META_DEVICE_MAP_GET_CLASS (device_map);
+
+  if (klass->grab_touch)
+    (klass->grab_touch) (device_map, xwindow);
+}
+
+void
+meta_device_map_ungrab_touch (MetaDeviceMap *device_map,
+                              Window         xwindow)
+{
+  MetaDeviceMapClass *klass;
+
+  g_return_if_fail (META_IS_DEVICE_MAP (device_map));
+  g_return_if_fail (xwindow != None);
+
+  klass = META_DEVICE_MAP_GET_CLASS (device_map);
+
+  if (klass->ungrab_touch)
+    (klass->ungrab_touch) (device_map, xwindow);
+}

src/core/device-pointer.c

@@ -0,0 +1,124 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/* Pointer device abstraction */
+
+/*
+ * Copyright (C) 2011 Carlos Garnacho
+ *
+ * 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 "device-pointer.h"
+
+G_DEFINE_ABSTRACT_TYPE (MetaDevicePointer,
+                        meta_device_pointer,
+                        META_TYPE_DEVICE)
+
+static void
+meta_device_pointer_class_init (MetaDevicePointerClass *klass)
+{
+}
+
+static void
+meta_device_pointer_init (MetaDevicePointer *pointer)
+{
+}
+
+void
+meta_device_pointer_warp (MetaDevicePointer *pointer,
+                          MetaScreen        *screen,
+                          gint               x,
+                          gint               y)
+{
+  MetaDevicePointerClass *klass;
+
+  g_return_if_fail (META_IS_DEVICE_POINTER (pointer));
+  g_return_if_fail (META_IS_SCREEN (screen));
+
+  klass = META_DEVICE_POINTER_GET_CLASS (pointer);
+
+  if (klass->warp)
+    (klass->warp) (pointer, screen, x, y);
+}
+
+void
+meta_device_pointer_set_window_cursor (MetaDevicePointer *pointer,
+                                       Window             xwindow,
+                                       MetaCursor         cursor)
+{
+  MetaDevicePointerClass *klass;
+
+  g_return_if_fail (META_IS_DEVICE_POINTER (pointer));
+  g_return_if_fail (xwindow != None);
+
+  klass = META_DEVICE_POINTER_GET_CLASS (pointer);
+
+  if (klass->set_window_cursor)
+    (klass->set_window_cursor) (pointer, xwindow, cursor);
+}
+
+gboolean
+meta_device_pointer_query_position (MetaDevicePointer *pointer,
+                                    Window             xwindow,
+                                    Window            *root_ret,
+                                    Window            *child_ret,
+                                    gint              *root_x_ret,
+                                    gint              *root_y_ret,
+                                    gint              *x_ret,
+                                    gint              *y_ret,
+                                    guint             *mask_ret)
+{
+  MetaDevicePointerClass *klass;
+  gint root_x, root_y, x, y;
+  Window root, child;
+  gboolean retval;
+  guint mask;
+
+  g_return_val_if_fail (META_IS_DEVICE_POINTER (pointer), FALSE);
+  g_return_val_if_fail (xwindow != None, FALSE);
+
+  klass = META_DEVICE_POINTER_GET_CLASS (pointer);
+
+  if (!klass->query_position)
+    return FALSE;
+
+  retval = (klass->query_position) (pointer, xwindow, &root, &child,
+                                    &root_x, &root_y, &x, &y, &mask);
+
+  if (root_ret)
+    *root_ret = root;
+
+  if (child_ret)
+    *child_ret = child;
+
+  if (root_x_ret)
+    *root_x_ret = root_x;
+
+  if (root_y_ret)
+    *root_y_ret = root_y;
+
+  if (x_ret)
+    *x_ret = x;
+
+  if (y_ret)
+    *y_ret = y;
+
+  if (mask_ret)
+    *mask_ret = mask;
+
+  return retval;
+}

src/core/device-pointer.h

@@ -0,0 +1,95 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/**
+ * \file device-pointer.h  Pointer device abstraction
+ *
+ * Input devices.
+ * This file contains the internal abstraction of pointer devices so
+ * XInput2/core events can be handled similarly.
+ */
+
+/*
+ * Copyright (C) 2011 Carlos Garnacho
+ *
+ * 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_DEVICE_POINTER_H
+#define META_DEVICE_POINTER_H
+
+#include "display-private.h"
+#include <meta/screen.h>
+#include "device-private.h"
+
+#define META_TYPE_DEVICE_POINTER            (meta_device_pointer_get_type ())
+#define META_DEVICE_POINTER(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_DEVICE_POINTER, MetaDevicePointer))
+#define META_DEVICE_POINTER_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  META_TYPE_DEVICE_POINTER, MetaDevicePointerClass))
+#define META_IS_DEVICE_POINTER(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_DEVICE_POINTER))
+#define META_IS_DEVICE_POINTER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  META_TYPE_DEVICE_POINTER))
+#define META_DEVICE_POINTER_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  META_TYPE_DEVICE_POINTER, MetaDevicePointerClass))
+
+typedef struct _MetaDevicePointer MetaDevicePointer;
+typedef struct _MetaDevicePointerClass MetaDevicePointerClass;
+
+struct _MetaDevicePointer
+{
+  MetaDevice parent_instance;
+};
+
+struct _MetaDevicePointerClass
+{
+  MetaDeviceClass parent_instance;
+
+  void     (* warp)           (MetaDevicePointer *pointer,
+                               MetaScreen        *screen,
+                               gint               x,
+                               gint               y);
+
+  void (* set_window_cursor)  (MetaDevicePointer *pointer,
+                               Window             xwindow,
+                               MetaCursor         cursor);
+  gboolean (* query_position) (MetaDevicePointer *pointer,
+                               Window             xwindow,
+                               Window            *root,
+                               Window            *child,
+                               gint              *root_x,
+                               gint              *root_y,
+                               gint              *x,
+                               gint              *y,
+                               guint             *mask);
+};
+
+GType    meta_device_pointer_get_type      (void) G_GNUC_CONST;
+
+void     meta_device_pointer_warp              (MetaDevicePointer *pointer,
+                                                MetaScreen        *screen,
+                                                gint               x,
+                                                gint               y);
+void     meta_device_pointer_set_window_cursor (MetaDevicePointer *pointer,
+						Window             xwindow,
+						MetaCursor         cursor);
+
+gboolean meta_device_pointer_query_position    (MetaDevicePointer *pointer,
+                                                Window             xwindow,
+                                                Window            *root,
+                                                Window            *child,
+                                                gint              *root_x,
+                                                gint              *root_y,
+                                                gint              *x,
+                                                gint              *y,
+                                                guint             *mask);
+
+#endif /* META_DEVICE_POINTER_H */

src/core/device-private.h

@@ -0,0 +1,80 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/**
+ * \file device.h  Input device abstraction
+ *
+ * Input devices.
+ * This file contains the internal abstraction of input devices so
+ * XInput2/core events can be handled similarly.
+ */
+
+/*
+ * Copyright (C) 2011 Carlos Garnacho
+ *
+ * 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_DEVICE_PRIVATE_H
+#define META_DEVICE_PRIVATE_H
+
+#include <meta/device.h>
+#include "display-private.h"
+
+struct _MetaDevice
+{
+  GObject parent_instance;
+  gpointer priv;
+};
+
+struct _MetaDeviceClass
+{
+  GObjectClass parent_instance;
+
+  void     (* allow_events) (MetaDevice  *device,
+                             int          mode,
+                             Time         time);
+
+  gboolean (* grab)         (MetaDevice *device,
+                             Window      xwindow,
+                             guint       evmask,
+                             MetaCursor  cursor,
+                             gboolean    owner_events,
+                             gboolean    sync,
+                             Time        time);
+  void     (* ungrab)       (MetaDevice *device,
+                             Time        time);
+};
+
+GType        meta_device_get_type     (void) G_GNUC_CONST;
+
+void         meta_device_allow_events (MetaDevice  *device,
+                                       int          mode,
+                                       Time         time);
+
+gboolean     meta_device_grab         (MetaDevice *device,
+                                       Window      xwindow,
+                                       guint       evmask,
+                                       MetaCursor  cursor,
+                                       gboolean    owner_events,
+                                       gboolean    sync,
+                                       Time        time);
+void         meta_device_ungrab       (MetaDevice *device,
+                                       Time        time);
+
+void         meta_device_pair_devices      (MetaDevice *device,
+                                            MetaDevice *other_device);
+
+#endif /* META_DEVICE_PRIVATE_H */

src/core/device.c

@@ -0,0 +1,270 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/* Input device abstraction */
+
+/*
+ * Copyright (C) 2011 Carlos Garnacho
+ *
+ * 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 "device-private.h"
+
+G_DEFINE_ABSTRACT_TYPE (MetaDevice, meta_device, G_TYPE_OBJECT)
+
+enum {
+  PROP_0,
+  PROP_DEVICE_ID,
+  PROP_DISPLAY,
+  PROP_PAIRED_DEVICE
+};
+
+typedef struct MetaDevicePrivate MetaDevicePrivate;
+
+struct MetaDevicePrivate
+{
+  MetaDisplay *display;
+  MetaDevice *paired_device;
+  gint device_id;
+};
+
+static void
+meta_device_get_property (GObject    *object,
+                          guint       param_id,
+                          GValue     *value,
+                          GParamSpec *pspec)
+{
+  switch (param_id)
+    {
+    case PROP_DEVICE_ID:
+      g_value_set_int (value,
+                       meta_device_get_id (META_DEVICE (object)));
+      break;
+    case PROP_DISPLAY:
+      g_value_set_object (value,
+                          meta_device_get_display (META_DEVICE (object)));
+      break;
+    case PROP_PAIRED_DEVICE:
+      g_value_set_object (value,
+                          meta_device_get_paired_device (META_DEVICE (object)));
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
+      break;
+    }
+}
+
+static void
+meta_device_set_property (GObject      *object,
+                          guint         param_id,
+                          const GValue *value,
+                          GParamSpec   *pspec)
+{
+  MetaDevicePrivate *priv = META_DEVICE (object)->priv;
+
+  switch (param_id)
+    {
+    case PROP_DEVICE_ID:
+      priv->device_id = g_value_get_int (value);
+      break;
+    case PROP_DISPLAY:
+      priv->display = g_value_get_object (value);
+      break;
+    case PROP_PAIRED_DEVICE:
+      meta_device_pair_devices (META_DEVICE (object),
+                                g_value_get_object (value));
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
+      break;
+    }
+}
+
+static void
+meta_device_class_init (MetaDeviceClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->get_property = meta_device_get_property;
+  object_class->set_property = meta_device_set_property;
+
+  g_object_class_install_property (object_class,
+                                   PROP_DEVICE_ID,
+                                   g_param_spec_int ("device-id",
+                                                     "Device ID",
+                                                     "Device ID",
+                                                     2, G_MAXINT, 2,
+                                                     G_PARAM_READWRITE |
+                                                     G_PARAM_CONSTRUCT_ONLY));
+  g_object_class_install_property (object_class,
+                                   PROP_DISPLAY,
+                                   g_param_spec_object ("display",
+                                                        "Display",
+                                                        "Display",
+                                                        META_TYPE_DISPLAY,
+                                                        G_PARAM_READWRITE |
+                                                        G_PARAM_CONSTRUCT_ONLY));
+  g_object_class_install_property (object_class,
+                                   PROP_PAIRED_DEVICE,
+                                   g_param_spec_object ("paired-device",
+                                                        "Paired device",
+                                                        "Paired device",
+                                                        META_TYPE_DEVICE,
+                                                        G_PARAM_READWRITE));
+
+  g_type_class_add_private (klass, sizeof (MetaDevicePrivate));
+}
+
+static void
+meta_device_init (MetaDevice *device)
+{
+  device->priv = G_TYPE_INSTANCE_GET_PRIVATE (device,
+                                              META_TYPE_DEVICE,
+                                              MetaDevicePrivate);
+}
+
+int
+meta_device_get_id (MetaDevice *device)
+{
+  MetaDevicePrivate *priv;
+
+  g_return_val_if_fail (META_IS_DEVICE (device), 0);
+
+  priv = device->priv;
+  return priv->device_id;
+}
+
+/**
+ * meta_device_get_display:
+ * @device: a #MetaDevice
+ *
+ * Returns the #MetaDisplay to which the device belongs
+ *
+ * Returns: (transfer none): the #MetaDisplay to which the device belongs
+ **/
+MetaDisplay *
+meta_device_get_display (MetaDevice *device)
+{
+  MetaDevicePrivate *priv;
+
+  g_return_val_if_fail (META_IS_DEVICE (device), NULL);
+
+  priv = device->priv;
+  return priv->display;
+}
+
+void
+meta_device_allow_events (MetaDevice  *device,
+                          int          mode,
+                          Time         time)
+{
+  MetaDeviceClass *klass;
+
+  g_return_if_fail (META_IS_DEVICE (device));
+
+  klass = META_DEVICE_GET_CLASS (device);
+
+  if (klass->allow_events)
+    (klass->allow_events) (device, mode, time);
+}
+
+gboolean
+meta_device_grab (MetaDevice *device,
+                  Window      xwindow,
+                  guint       evmask,
+                  MetaCursor  cursor,
+                  gboolean    owner_events,
+                  gboolean    sync,
+                  Time        time)
+{
+  MetaDeviceClass *klass;
+
+  g_return_val_if_fail (META_IS_DEVICE (device), FALSE);
+  g_return_val_if_fail (xwindow != None, FALSE);
+
+  klass = META_DEVICE_GET_CLASS (device);
+
+  if (!klass->grab)
+    return FALSE;
+
+  return (klass->grab) (device, xwindow, evmask, cursor,
+                        owner_events, sync, time);
+}
+
+void
+meta_device_ungrab (MetaDevice *device,
+                    Time        time)
+{
+  MetaDeviceClass *klass;
+
+  g_return_if_fail (META_IS_DEVICE (device));
+
+  klass = META_DEVICE_GET_CLASS (device);
+
+  if (klass->ungrab)
+    (klass->ungrab) (device, time);
+}
+
+void
+meta_device_pair_devices (MetaDevice *device,
+                          MetaDevice *other_device)
+{
+  MetaDevicePrivate *priv1, *priv2;
+
+  g_return_if_fail (META_IS_DEVICE (device));
+  g_return_if_fail (META_IS_DEVICE (other_device));
+
+  priv1 = device->priv;
+  priv2 = other_device->priv;
+
+  /* Consider safe multiple calls
+   * on already paired devices
+   */
+  if (priv1->paired_device != NULL &&
+      priv2->paired_device != NULL &&
+      priv1->paired_device == other_device &&
+      priv2->paired_device == device)
+    return;
+
+  g_return_if_fail (priv1->paired_device == NULL);
+  g_return_if_fail (priv2->paired_device == NULL);
+
+  priv1->paired_device = g_object_ref (other_device);
+  priv2->paired_device = g_object_ref (device);
+
+  g_object_notify (G_OBJECT (device), "paired-device");
+  g_object_notify (G_OBJECT (other_device), "paired-device");
+}
+
+/**
+ * meta_device_get_paired_device:
+ * @device: a #MetaDevice
+ *
+ * Returns the paired device. Devices come in keyboard/pointer pairs.
+ *
+ * Returns: (transfer none): The paired device.
+ **/
+MetaDevice *
+meta_device_get_paired_device (MetaDevice *device)
+{
+  MetaDevicePrivate *priv;
+
+  g_return_val_if_fail (META_IS_DEVICE (device), NULL);
+
+  priv = device->priv;
+  return priv->paired_device;
+}

src/core/devices-core.c

@@ -0,0 +1,256 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/* Core input devices implementation */
+
+/*
+ * Copyright (C) 2011 Carlos Garnacho
+ *
+ * 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 "screen-private.h"
+#include "devices-core.h"
+#include "device-map-private.h"
+
+/* Common functions */
+static void
+meta_device_core_common_allow_events (MetaDevice *device,
+                                      int         mode,
+                                      Time        time)
+{
+  MetaDisplay *display;
+
+  display = meta_device_get_display (device);
+  XAllowEvents (display->xdisplay, mode, time);
+}
+
+/* Core pointer */
+
+G_DEFINE_TYPE (MetaDevicePointerCore,
+               meta_device_pointer_core,
+               META_TYPE_DEVICE_POINTER)
+
+static gboolean
+meta_device_pointer_core_grab (MetaDevice *device,
+                               Window      xwindow,
+                               guint       evmask,
+                               MetaCursor  cursor,
+                               gboolean    owner_events,
+                               gboolean    sync,
+                               Time        time)
+{
+  MetaDisplay *display;
+  Cursor xcursor;
+  int retval;
+
+  display = meta_device_get_display (device);
+  xcursor = meta_display_create_x_cursor (display, cursor);
+
+  retval = XGrabPointer (display->xdisplay,
+                         xwindow, owner_events,
+                         evmask,
+                         (sync) ? GrabModeSync : GrabModeAsync,
+                         (sync) ? GrabModeSync : GrabModeAsync,
+                         None, xcursor, time);
+
+  if (xcursor != None)
+    XFreeCursor (display->xdisplay, xcursor);
+
+  return (retval == Success);
+}
+
+static void
+meta_device_pointer_core_ungrab (MetaDevice *device,
+                                 Time        time)
+{
+  MetaDisplay *display;
+
+  display = meta_device_get_display (device);
+  XUngrabPointer (display->xdisplay, time);
+}
+
+static void
+meta_device_pointer_core_warp (MetaDevicePointer *pointer,
+                               MetaScreen        *screen,
+                               gint               x,
+                               gint               y)
+{
+  MetaDisplay *display;
+
+  display = meta_device_get_display (META_DEVICE (pointer));
+  XWarpPointer (display->xdisplay,
+                None, screen->xroot,
+                0, 0, 0, 0, x, y);
+}
+
+static void
+meta_device_pointer_core_set_window_cursor (MetaDevicePointer *pointer,
+                                            Window             xwindow,
+                                            MetaCursor         cursor)
+{
+  MetaDisplay *display;
+  Cursor xcursor;
+
+  display = meta_device_get_display (META_DEVICE (pointer));
+  xcursor = meta_display_create_x_cursor (display, cursor);
+
+  XDefineCursor (display->xdisplay, xwindow, xcursor);
+
+  if (xcursor != None)
+    XFreeCursor (display->xdisplay, xcursor);
+}
+
+static gboolean
+meta_device_pointer_core_query_position (MetaDevicePointer *pointer,
+                                         Window             xwindow,
+                                         Window            *root,
+                                         Window            *child,
+                                         gint              *root_x,
+                                         gint              *root_y,
+                                         gint              *x,
+                                         gint              *y,
+                                         guint             *mask)
+{
+  MetaDisplay *display;
+
+  display = meta_device_get_display (META_DEVICE (pointer));
+  return XQueryPointer (display->xdisplay, xwindow,
+                        root, child, root_x, root_y,
+                        x, y, mask);
+}
+
+static void
+meta_device_pointer_core_class_init (MetaDevicePointerCoreClass *klass)
+{
+  MetaDevicePointerClass *pointer_class = META_DEVICE_POINTER_CLASS (klass);
+  MetaDeviceClass *device_class = META_DEVICE_CLASS (klass);
+
+  device_class->allow_events = meta_device_core_common_allow_events;
+  device_class->grab = meta_device_pointer_core_grab;
+  device_class->ungrab = meta_device_pointer_core_ungrab;
+
+  pointer_class->warp = meta_device_pointer_core_warp;
+  pointer_class->set_window_cursor = meta_device_pointer_core_set_window_cursor;
+  pointer_class->query_position = meta_device_pointer_core_query_position;
+}
+
+static void
+meta_device_pointer_core_init (MetaDevicePointerCore *pointer)
+{
+}
+
+MetaDevice *
+meta_device_pointer_core_new (MetaDisplay *display)
+{
+  return g_object_new (META_TYPE_DEVICE_POINTER_CORE,
+                       "device-id", META_CORE_POINTER_ID,
+                       "display", display,
+                       NULL);
+}
+
+
+/* Core Keyboard */
+
+G_DEFINE_TYPE (MetaDeviceKeyboardCore,
+               meta_device_keyboard_core,
+               META_TYPE_DEVICE_KEYBOARD)
+
+static gboolean
+meta_device_keyboard_core_grab (MetaDevice *device,
+                                Window      xwindow,
+                                guint       evmask,
+                                MetaCursor  cursor,
+                                gboolean    owner_events,
+                                gboolean    sync,
+                                Time        time)
+{
+  MetaDisplay *display;
+  gint retval;
+
+  display = meta_device_get_display (device);
+  retval = XGrabKeyboard (display->xdisplay, xwindow, owner_events,
+                          (sync) ? GrabModeSync : GrabModeAsync,
+                          (sync) ? GrabModeSync : GrabModeAsync,
+                          time);
+
+  return (retval == Success);
+}
+
+static void
+meta_device_keyboard_core_ungrab (MetaDevice *device,
+                                  Time        time)
+{
+  MetaDisplay *display;
+
+  display = meta_device_get_display (device);
+  XUngrabKeyboard (display->xdisplay, time);
+}
+
+static Window
+meta_device_keyboard_core_get_focus_window (MetaDeviceKeyboard *keyboard)
+{
+  MetaDisplay *display;
+  Window xwindow;
+  int unused;
+
+  display = meta_device_get_display (META_DEVICE (keyboard));
+  XGetInputFocus (display->xdisplay, &xwindow, &unused);
+
+  return xwindow;
+}
+
+static void
+meta_device_keyboard_core_set_focus_window (MetaDeviceKeyboard *keyboard,
+                                            Window              xwindow,
+                                            Time                timestamp)
+{
+  MetaDisplay *display;
+
+  display = meta_device_get_display (META_DEVICE (keyboard));
+  XSetInputFocus (display->xdisplay,
+                  xwindow,
+                  RevertToPointerRoot,
+                  timestamp);
+}
+
+static void
+meta_device_keyboard_core_class_init (MetaDeviceKeyboardCoreClass *klass)
+{
+  MetaDeviceKeyboardClass *keyboard_class = META_DEVICE_KEYBOARD_CLASS (klass);
+  MetaDeviceClass *device_class = META_DEVICE_CLASS (klass);
+
+  keyboard_class->get_focus_window = meta_device_keyboard_core_get_focus_window;
+  keyboard_class->set_focus_window = meta_device_keyboard_core_set_focus_window;
+
+  device_class->allow_events = meta_device_core_common_allow_events;
+  device_class->grab = meta_device_keyboard_core_grab;
+  device_class->ungrab = meta_device_keyboard_core_ungrab;
+}
+
+static void
+meta_device_keyboard_core_init (MetaDeviceKeyboardCore *keyboard)
+{
+}
+
+MetaDevice *
+meta_device_keyboard_core_new (MetaDisplay *display)
+{
+  return g_object_new (META_TYPE_DEVICE_KEYBOARD_CORE,
+                       "device-id", META_CORE_KEYBOARD_ID,
+                       "display", display,
+                       NULL);
+}

src/core/devices-core.h

@@ -0,0 +1,85 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/**
+ * \file devices-core.h  Core input devices implementation
+ *
+ * Input devices.
+ * This file contains the core X protocol implementation of input devices.
+ */
+
+/*
+ * Copyright (C) 2011 Carlos Garnacho
+ *
+ * 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_DEVICES_CORE_H
+#define META_DEVICES_CORE_H
+
+#include "device-pointer.h"
+#include "device-keyboard.h"
+
+/* Pointer */
+#define META_TYPE_DEVICE_POINTER_CORE            (meta_device_pointer_core_get_type ())
+#define META_DEVICE_POINTER_CORE(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_DEVICE_POINTER_CORE, MetaDevicePointerCore))
+#define META_DEVICE_POINTER_CORE_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  META_TYPE_DEVICE_POINTER_CORE, MetaDevicePointerCoreClass))
+#define META_IS_DEVICE_POINTER_CORE(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_DEVICE_POINTER_CORE))
+#define META_IS_DEVICE_POINTER_CORE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  META_TYPE_DEVICE_POINTER_CORE))
+#define META_DEVICE_POINTER_CORE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  META_TYPE_DEVICE_POINTER_CORE, MetaDevicePointerCoreClass))
+
+typedef struct _MetaDevicePointerCore MetaDevicePointerCore;
+typedef struct _MetaDevicePointerCoreClass MetaDevicePointerCoreClass;
+
+struct _MetaDevicePointerCore
+{
+  MetaDevicePointer parent_instance;
+};
+
+struct _MetaDevicePointerCoreClass
+{
+  MetaDevicePointerClass parent_class;
+};
+
+GType       meta_device_pointer_core_get_type (void) G_GNUC_CONST;
+
+MetaDevice *meta_device_pointer_core_new      (MetaDisplay *display);
+
+/* Keyboard */
+#define META_TYPE_DEVICE_KEYBOARD_CORE            (meta_device_keyboard_core_get_type ())
+#define META_DEVICE_KEYBOARD_CORE(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_DEVICE_KEYBOARD_CORE, MetaDeviceKeyboardCore))
+#define META_DEVICE_KEYBOARD_CORE_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  META_TYPE_DEVICE_KEYBOARD_CORE, MetaDeviceKeyboardCoreClass))
+#define META_IS_DEVICE_KEYBOARD_CORE(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_DEVICE_KEYBOARD_CORE))
+#define META_IS_DEVICE_KEYBOARD_CORE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  META_TYPE_DEVICE_KEYBOARD_CORE))
+#define META_DEVICE_KEYBOARD_CORE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  META_TYPE_DEVICE_KEYBOARD_CORE, MetaDeviceKeyboardCoreClass))
+
+typedef struct _MetaDeviceKeyboardCore MetaDeviceKeyboardCore;
+typedef struct _MetaDeviceKeyboardCoreClass MetaDeviceKeyboardCoreClass;
+
+struct _MetaDeviceKeyboardCore
+{
+  MetaDeviceKeyboard parent_instance;
+};
+
+struct _MetaDeviceKeyboardCoreClass
+{
+  MetaDeviceKeyboardClass parent_class;
+};
+
+GType       meta_device_keyboard_core_get_type (void) G_GNUC_CONST;
+
+MetaDevice *meta_device_keyboard_core_new      (MetaDisplay *display);
+
+#endif /* META_DEVICES_CORE_H */

src/core/devices-xi2.c

@@ -0,0 +1,353 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/* XInput2 devices implementation */
+
+/*
+ * Copyright (C) 2011 Carlos Garnacho
+ *
+ * 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 "devices-xi2.h"
+#include "display-private.h"
+#include "screen-private.h"
+#include "input-events.h"
+#include <X11/extensions/XInput2.h>
+
+/* Common functions */
+static void
+meta_device_xi2_common_allow_events (MetaDevice *device,
+                                     int         mode,
+                                     Time        time)
+{
+  MetaDisplay *display;
+  gint device_id;
+
+  display = meta_device_get_display (device);
+  device_id = meta_device_get_id (device);
+
+  switch (mode)
+    {
+    case AsyncPointer:
+    case AsyncKeyboard:
+      mode = XIAsyncDevice;
+      break;
+    case SyncPointer:
+    case SyncKeyboard:
+      mode = XISyncDevice;
+      break;
+    case ReplayPointer:
+    case ReplayKeyboard:
+      mode = XIReplayDevice;
+      break;
+    case AsyncBoth:
+      mode = XIAsyncPair;
+      break;
+    case SyncBoth:
+      mode = XISyncPair;
+      break;
+    }
+
+  XIAllowEvents (display->xdisplay, device_id, mode, time);
+}
+
+guchar *
+meta_device_xi2_translate_event_mask (guint  evmask,
+                                      gint  *len)
+{
+  guchar *mask;
+
+  *len = XIMaskLen (XI_LASTEVENT);
+  mask = g_new0 (guchar, *len);
+
+  if (evmask & KeyPressMask)
+    XISetMask (mask, XI_KeyPress);
+  if (evmask & KeyReleaseMask)
+    XISetMask (mask, XI_KeyRelease);
+  if (evmask & ButtonPressMask)
+    XISetMask (mask, XI_ButtonPress);
+  if (evmask & ButtonReleaseMask)
+    XISetMask (mask, XI_ButtonRelease);
+  if (evmask & EnterWindowMask)
+    XISetMask (mask, XI_Enter);
+  if (evmask & LeaveWindowMask)
+    XISetMask (mask, XI_Leave);
+
+  /* No motion hints in XI2 at the moment... */
+  if (evmask & PointerMotionMask ||
+      evmask & PointerMotionHintMask)
+    XISetMask (mask, XI_Motion);
+
+  if (evmask & FocusChangeMask)
+    {
+      XISetMask (mask, XI_FocusIn);
+      XISetMask (mask, XI_FocusOut);
+    }
+
+#ifdef HAVE_XTOUCH
+  if (evmask & META_INPUT_TOUCH_EVENTS_MASK)
+    {
+      XISetMask (mask, XI_TouchBegin);
+      XISetMask (mask, XI_TouchEnd);
+      XISetMask (mask, XI_TouchUpdate);
+    }
+#endif
+
+  return mask;
+}
+
+static gboolean
+meta_device_xi2_common_grab (MetaDevice *device,
+                             Window      xwindow,
+                             guint       evmask,
+                             MetaCursor  cursor,
+                             gboolean    owner_events,
+                             gboolean    sync,
+                             Time        time)
+{
+  MetaDisplay *display;
+  XIEventMask mask;
+  gint device_id, retval;
+  Cursor xcursor;
+
+  display = meta_device_get_display (device);
+  device_id = meta_device_get_id (device);
+  xcursor = meta_display_create_x_cursor (display, cursor);
+
+  mask.deviceid = device_id;
+  mask.mask = meta_device_xi2_translate_event_mask (evmask, &mask.mask_len);
+
+  retval = XIGrabDevice (display->xdisplay,
+                         device_id, xwindow,
+                         time, xcursor,
+                         (sync) ? GrabModeSync : GrabModeAsync,
+                         (sync) ? GrabModeSync : GrabModeAsync,
+                         owner_events, &mask);
+
+  if (xcursor != None)
+    XFreeCursor (display->xdisplay, xcursor);
+
+  return (retval == Success);
+}
+
+static void
+meta_device_xi2_common_ungrab (MetaDevice *device,
+                               Time        time)
+{
+  MetaDisplay *display;
+  gint device_id;
+
+  display = meta_device_get_display (device);
+  device_id = meta_device_get_id (device);
+
+  XIUngrabDevice (display->xdisplay, device_id, time);
+}
+
+/* Pointer */
+
+G_DEFINE_TYPE (MetaDevicePointerXI2,
+               meta_device_pointer_xi2,
+               META_TYPE_DEVICE_POINTER)
+
+static void
+meta_device_pointer_xi2_warp (MetaDevicePointer *pointer,
+                              MetaScreen        *screen,
+                              gint               x,
+                              gint               y)
+{
+  MetaDisplay *display;
+  int device_id;
+
+  display = meta_device_get_display (META_DEVICE (pointer));
+  device_id = meta_device_get_id (META_DEVICE (pointer));
+
+  XIWarpPointer (display->xdisplay,
+                 device_id,
+                 None, screen->xroot,
+                 0, 0, 0, 0, x, y);
+}
+
+static void
+meta_device_pointer_xi2_set_window_cursor (MetaDevicePointer *pointer,
+                                           Window             xwindow,
+                                           MetaCursor         cursor)
+{
+  MetaDisplay *display;
+  Cursor xcursor;
+  int device_id;
+
+  display = meta_device_get_display (META_DEVICE (pointer));
+  device_id = meta_device_get_id (META_DEVICE (pointer));
+  xcursor = meta_display_create_x_cursor (display, cursor);
+
+  if (xcursor != None)
+    {
+      XIDefineCursor (display->xdisplay, device_id, xwindow, xcursor);
+      XFreeCursor (display->xdisplay, xcursor);
+    }
+  else
+    XIUndefineCursor (display->xdisplay, device_id, xwindow);
+}
+
+static gboolean
+meta_device_pointer_xi2_query_position (MetaDevicePointer *pointer,
+                                        Window             xwindow,
+                                        Window            *root_ret,
+                                        Window            *child_ret,
+                                        gint              *root_x_ret,
+                                        gint              *root_y_ret,
+                                        gint              *x_ret,
+                                        gint              *y_ret,
+                                        guint             *mask_ret)
+{
+  MetaDisplay *display;
+  XIModifierState mods;
+  XIGroupState group_unused;
+  XIButtonState buttons;
+  gdouble root_x, root_y, x, y;
+  int device_id;
+  gboolean retval;
+
+  display = meta_device_get_display (META_DEVICE (pointer));
+  device_id = meta_device_get_id (META_DEVICE (pointer));
+
+  retval = XIQueryPointer (display->xdisplay,
+                           device_id, xwindow,
+                           root_ret, child_ret,
+                           &root_x, &root_y, &x, &y,
+                           &buttons, &mods,
+                           &group_unused);
+  if (mask_ret)
+    {
+      *mask_ret = mods.effective;
+
+      if (XIMaskIsSet (buttons.mask, 1))
+        *mask_ret |= Button1Mask;
+      else if (XIMaskIsSet (buttons.mask, 2))
+        *mask_ret |= Button2Mask;
+      else if (XIMaskIsSet (buttons.mask, 3))
+        *mask_ret |= Button3Mask;
+    }
+
+  if (root_x_ret)
+    *root_x_ret = (int) root_x;
+
+  if (root_y_ret)
+    *root_y_ret = (int) root_y;
+
+  if (x_ret)
+    *x_ret = (int) x;
+
+  if (y_ret)
+    *y_ret = (int) y;
+
+  return retval;
+}
+
+static void
+meta_device_pointer_xi2_class_init (MetaDevicePointerXI2Class *klass)
+{
+  MetaDevicePointerClass *pointer_class = META_DEVICE_POINTER_CLASS (klass);
+  MetaDeviceClass *device_class = META_DEVICE_CLASS (klass);
+
+  device_class->allow_events = meta_device_xi2_common_allow_events;
+  device_class->grab = meta_device_xi2_common_grab;
+  device_class->ungrab = meta_device_xi2_common_ungrab;
+
+  pointer_class->warp = meta_device_pointer_xi2_warp;
+  pointer_class->set_window_cursor = meta_device_pointer_xi2_set_window_cursor;
+  pointer_class->query_position = meta_device_pointer_xi2_query_position;
+}
+
+static void
+meta_device_pointer_xi2_init (MetaDevicePointerXI2 *pointer)
+{
+}
+
+MetaDevice *
+meta_device_pointer_xi2_new (MetaDisplay *display,
+                             gint         device_id)
+{
+  return g_object_new (META_TYPE_DEVICE_POINTER_XI2,
+                       "device-id", device_id,
+                       "display", display,
+                       NULL);
+}
+
+/* Keyboard */
+
+G_DEFINE_TYPE (MetaDeviceKeyboardXI2,
+               meta_device_keyboard_xi2,
+               META_TYPE_DEVICE_KEYBOARD)
+
+static Window
+meta_device_keyboard_xi2_get_focus_window (MetaDeviceKeyboard *keyboard)
+{
+  MetaDisplay *display;
+  Window xwindow;
+
+  display = meta_device_get_display (META_DEVICE (keyboard));
+  XIGetFocus (display->xdisplay,
+              meta_device_get_id (META_DEVICE (keyboard)),
+              &xwindow);
+
+  return xwindow;
+}
+
+static void
+meta_device_keyboard_xi2_set_focus_window (MetaDeviceKeyboard *keyboard,
+                                           Window              xwindow,
+                                           Time                timestamp)
+{
+  MetaDisplay *display;
+
+  display = meta_device_get_display (META_DEVICE (keyboard));
+
+  XISetFocus (display->xdisplay,
+              meta_device_get_id (META_DEVICE (keyboard)),
+              xwindow,
+              timestamp);
+}
+
+static void
+meta_device_keyboard_xi2_class_init (MetaDeviceKeyboardXI2Class *klass)
+{
+  MetaDeviceKeyboardClass *keyboard_class = META_DEVICE_KEYBOARD_CLASS (klass);
+  MetaDeviceClass *device_class = META_DEVICE_CLASS (klass);
+
+  keyboard_class->get_focus_window = meta_device_keyboard_xi2_get_focus_window;
+  keyboard_class->set_focus_window = meta_device_keyboard_xi2_set_focus_window;
+
+  device_class->allow_events = meta_device_xi2_common_allow_events;
+  device_class->grab = meta_device_xi2_common_grab;
+  device_class->ungrab = meta_device_xi2_common_ungrab;
+}
+
+static void
+meta_device_keyboard_xi2_init (MetaDeviceKeyboardXI2 *keyboard)
+{
+}
+
+MetaDevice *
+meta_device_keyboard_xi2_new (MetaDisplay *display,
+                              gint         device_id)
+{
+  return g_object_new (META_TYPE_DEVICE_KEYBOARD_XI2,
+                       "device-id", device_id,
+                       "display", display,
+                       NULL);
+}

src/core/devices-xi2.h

@@ -0,0 +1,92 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/**
+ * \file devices-xi2.h  XInput2 input devices implementation
+ *
+ * Input devices.
+ * This file contains the XInput2 implementation of input devices.
+ */
+
+/*
+ * Copyright (C) 2011 Carlos Garnacho
+ *
+ * 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_DEVICES_XI2_H
+#define META_DEVICES_XI2_H
+
+#include "device-pointer.h"
+#include "device-keyboard.h"
+
+/* Pointer */
+#define META_TYPE_DEVICE_POINTER_XI2            (meta_device_pointer_xi2_get_type ())
+#define META_DEVICE_POINTER_XI2(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_DEVICE_POINTER_XI2, MetaDevicePointerXI2))
+#define META_DEVICE_POINTER_XI2_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  META_TYPE_DEVICE_POINTER_XI2, MetaDevicePointerXI2Class))
+#define META_IS_DEVICE_POINTER_XI2(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_DEVICE_POINTER_XI2))
+#define META_IS_DEVICE_POINTER_XI2_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  META_TYPE_DEVICE_POINTER_XI2))
+#define META_DEVICE_POINTER_XI2_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  META_TYPE_DEVICE_POINTER_XI2, MetaDevicePointerXI2Class))
+
+typedef struct _MetaDevicePointerXI2 MetaDevicePointerXI2;
+typedef struct _MetaDevicePointerXI2Class MetaDevicePointerXI2Class;
+
+struct _MetaDevicePointerXI2
+{
+  MetaDevicePointer parent_instance;
+};
+
+struct _MetaDevicePointerXI2Class
+{
+  MetaDevicePointerClass parent_class;
+};
+
+GType       meta_device_pointer_xi2_get_type (void) G_GNUC_CONST;
+
+MetaDevice *meta_device_pointer_xi2_new      (MetaDisplay *display,
+                                              gint         device_id);
+
+/* Keyboard */
+#define META_TYPE_DEVICE_KEYBOARD_XI2            (meta_device_keyboard_xi2_get_type ())
+#define META_DEVICE_KEYBOARD_XI2(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_DEVICE_KEYBOARD_XI2, MetaDeviceKeyboardXI2))
+#define META_DEVICE_KEYBOARD_XI2_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  META_TYPE_DEVICE_KEYBOARD_XI2, MetaDeviceKeyboardXI2Class))
+#define META_IS_DEVICE_KEYBOARD_XI2(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_DEVICE_KEYBOARD_XI2))
+#define META_IS_DEVICE_KEYBOARD_XI2_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  META_TYPE_DEVICE_KEYBOARD_XI2))
+#define META_DEVICE_KEYBOARD_XI2_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  META_TYPE_DEVICE_KEYBOARD_XI2, MetaDeviceKeyboardXI2Class))
+
+typedef struct _MetaDeviceKeyboardXI2 MetaDeviceKeyboardXI2;
+typedef struct _MetaDeviceKeyboardXI2Class MetaDeviceKeyboardXI2Class;
+
+struct _MetaDeviceKeyboardXI2
+{
+  MetaDeviceKeyboard parent_instance;
+};
+
+struct _MetaDeviceKeyboardXI2Class
+{
+  MetaDeviceKeyboardClass parent_class;
+};
+
+GType       meta_device_keyboard_xi2_get_type (void) G_GNUC_CONST;
+
+MetaDevice *meta_device_keyboard_xi2_new      (MetaDisplay *display,
+                                               gint         device_id);
+
+/* Helper function for translating event masks */
+guchar * meta_device_xi2_translate_event_mask (guint        evmask,
+                                               gint        *len);
+
+
+#endif /* META_DEVICES_XI2_H */

src/core/display-private.h

@@ -38,6 +38,7 @@
 #include <meta/boxes.h>
 #include <meta/display.h>
 #include "keybindings-private.h"
+#include "device-map-private.h"
 #include <meta/prefs.h>
 
 #ifdef HAVE_STARTUP_NOTIFICATION
@@ -56,6 +57,10 @@ typedef struct _MetaWindowPropHooks MetaWindowPropHooks;
 
 typedef struct MetaEdgeResistanceData MetaEdgeResistanceData;
 
+typedef struct _MetaGrabInfo MetaGrabInfo;
+typedef struct _MetaFocusInfo MetaFocusInfo;
+typedef struct _MetaTouchInfo MetaTouchInfo;
+
 typedef void (* MetaWindowPingFunc) (MetaDisplay *display,
 				     Window       xwindow,
 				     guint32      timestamp,
@@ -86,6 +91,78 @@ typedef enum {
   META_TILE_MAXIMIZED
 } MetaTileMode;
 
+struct _MetaGrabInfo
+{
+  MetaDevice *grab_pointer;
+  MetaDevice *grab_keyboard;
+
+  MetaGrabOp  grab_op;
+  MetaScreen *grab_screen;
+  MetaWindow *grab_window;
+  Window      grab_xwindow;
+  int         grab_button;
+  int         grab_anchor_root_x;
+  int         grab_anchor_root_y;
+  MetaRectangle grab_anchor_window_pos;
+  MetaTileMode  grab_tile_mode;
+  int           grab_tile_monitor_number;
+  int         grab_latest_motion_x;
+  int         grab_latest_motion_y;
+  gulong      grab_mask;
+  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.    */
+  MetaResizePopup *grab_resize_popup;
+  GTimeVal    grab_last_moveresize_time;
+  guint32     grab_motion_notify_time;
+  GList*      grab_old_window_stacking;
+  unsigned int grab_last_user_action_was_snap;
+
+#ifdef HAVE_XSYNC
+  /* alarm monitoring client's _NET_WM_SYNC_REQUEST_COUNTER */
+  XSyncAlarm  grab_sync_request_alarm;
+#endif
+  int	      grab_resize_timeout_id;
+};
+
+struct _MetaFocusInfo
+{
+  /* This is the actual window from focus events,
+   * not the one we last set
+   */
+  MetaWindow *focus_window;
+
+  /* window we are expecting a FocusIn event for or the current focus
+   * window if we are not expecting any FocusIn/FocusOut events; not
+   * perfect because applications can call XSetInputFocus directly.
+   * (It could also be messed up if a timestamp later than current
+   * time is sent to meta_display_set_input_focus_window, though that
+   * would be a programming error).  See bug 154598 for more info.
+   */
+  MetaWindow *expected_focus_window;
+
+  /* last timestamp passed to XSetInputFocus */
+  guint32 last_focus_time;
+};
+
+struct _MetaTouchInfo
+{
+  gdouble root_x;
+  gdouble root_y;
+
+  gdouble initial_root_x;
+  gdouble initial_root_y;
+
+  guint notified : 1;
+  guint use_for_hotspot : 1;
+};
+
 struct _MetaDisplay
 {
   GObject parent_instance;
@@ -104,22 +181,8 @@ struct _MetaDisplay
 #include <meta/atomnames.h>
 #undef item
 
-  /* This is the actual window from focus events,
-   * not the one we last set
-   */
-  MetaWindow *focus_window;
-
-  /* window we are expecting a FocusIn event for or the current focus
-   * window if we are not expecting any FocusIn/FocusOut events; not
-   * perfect because applications can call XSetInputFocus directly.
-   * (It could also be messed up if a timestamp later than current
-   * time is sent to meta_display_set_input_focus_window, though that
-   * would be a programming error).  See bug 154598 for more info.
-   */
-  MetaWindow *expected_focus_window;
-
-  /* last timestamp passed to XSetInputFocus */
-  guint32 last_focus_time;
+  /* keyboard -> MetaFocusInfo hashtable */
+  GHashTable *focus_info;
 
   /* last user interaction time in any app */
   guint32 last_user_time;
@@ -179,35 +242,11 @@ struct _MetaDisplay
   /* Alt+click button grabs */
   unsigned int window_grab_modifiers;
   
-  /* current window operation */
-  MetaGrabOp  grab_op;
-  MetaScreen *grab_screen;
-  MetaWindow *grab_window;
-  Window      grab_xwindow;
-  int         grab_button;
-  int         grab_anchor_root_x;
-  int         grab_anchor_root_y;
-  MetaRectangle grab_anchor_window_pos;
-  MetaTileMode  grab_tile_mode;
-  int           grab_tile_monitor_number;
-  int         grab_latest_motion_x;
-  int         grab_latest_motion_y;
-  gulong      grab_mask;
-  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.    */
-  MetaResizePopup *grab_resize_popup;
-  GTimeVal    grab_last_moveresize_time;
-  guint32     grab_motion_notify_time;
-  GList*      grab_old_window_stacking;
-  MetaEdgeResistanceData *grab_edge_resistance_data;
-  unsigned int grab_last_user_action_was_snap;
+  /* per-device current window operation */
+  GHashTable *current_grabs;
+
+  /* per-screen edge resistance cache */
+  GHashTable *edge_resistance_info;
 
   /* we use property updates as sentinels for certain window focus events
    * to avoid some race conditions on EnterNotify events
@@ -218,11 +257,6 @@ struct _MetaDisplay
   int         xkb_base_event_type;
   guint32     last_bell_time;
 #endif
-#ifdef HAVE_XSYNC
-  /* alarm monitoring client's _NET_WM_SYNC_REQUEST_COUNTER */
-  XSyncAlarm  grab_sync_request_alarm;
-#endif
-  int	      grab_resize_timeout_id;
 
   /* Keybindings stuff */
   MetaKeyBinding *key_bindings;
@@ -269,6 +303,9 @@ struct _MetaDisplay
   /* Managed by compositor.c */
   MetaCompositor *compositor;
 
+  /* Managed by device-map.c */
+  MetaDeviceMap *device_map;
+
   int render_event_base;
   int render_error_base;
 
@@ -292,6 +329,15 @@ struct _MetaDisplay
   int shape_event_base;
   int shape_error_base;
 #endif
+
+#ifdef HAVE_XINPUT2
+  int xinput2_opcode;
+  unsigned int have_xinput2 : 1;
+#ifdef HAVE_XTOUCH
+  unsigned int have_xtouch : 1;
+#endif /* HAVE_XTOUCH */
+#endif
+
 #ifdef HAVE_XSYNC
   unsigned int have_xsync : 1;
 #define META_DISPLAY_HAS_XSYNC(display) ((display)->have_xsync)
@@ -377,18 +423,24 @@ Cursor         meta_display_create_x_cursor (MetaDisplay *display,
 
 void     meta_display_set_grab_op_cursor (MetaDisplay *display,
                                           MetaScreen  *screen,
+                                          MetaDevice  *device,
                                           MetaGrabOp   op,
                                           gboolean     change_pointer,
                                           Window       grab_xwindow,
                                           guint32      timestamp);
 
 void    meta_display_check_threshold_reached (MetaDisplay *display,
+                                              MetaDevice  *device,
                                               int          x,
                                               int          y);
 void     meta_display_grab_window_buttons    (MetaDisplay *display,
                                               Window       xwindow);
 void     meta_display_ungrab_window_buttons  (MetaDisplay *display,
                                               Window       xwindow);
+void     meta_display_grab_window_touches    (MetaDisplay *display,
+                                              MetaWindow  *window);
+void     meta_display_ungrab_window_touches  (MetaDisplay *display,
+                                              MetaWindow  *window);
 
 void meta_display_grab_focus_window_button   (MetaDisplay *display,
                                               MetaWindow  *window);
@@ -396,7 +448,8 @@ void meta_display_ungrab_focus_window_button (MetaDisplay *display,
                                               MetaWindow  *window);
 
 /* Next function is defined in edge-resistance.c */
-void meta_display_cleanup_edges              (MetaDisplay *display);
+void meta_display_cleanup_edges              (MetaDisplay *display,
+                                              MetaScreen  *screen);
 
 /* make a request to ensure the event serial has changed */
 void     meta_display_increment_event_serial (MetaDisplay *display);
@@ -444,4 +497,15 @@ void meta_display_overlay_key_activate (MetaDisplay *display);
 /* In above-tab-keycode.c */
 guint meta_display_get_above_tab_keycode (MetaDisplay *display);
 
+MetaGrabInfo * meta_display_create_grab_info         (MetaDisplay  *display,
+                                                      MetaDevice   *device);
+void           meta_display_remove_grab_info         (MetaDisplay  *display,
+                                                      MetaDevice   *device);
+
+MetaGrabInfo * meta_display_get_grab_info            (MetaDisplay  *display,
+                                                      MetaDevice   *device);
+MetaFocusInfo * meta_display_get_focus_info          (MetaDisplay  *display,
+                                                      MetaDevice   *device);
+
+
 #endif

src/core/edge-resistance.c

@@ -30,12 +30,12 @@
 /* A simple macro for whether a given window's edges are potentially
  * relevant for resistance/snapping during a move/resize operation
  */
-#define WINDOW_EDGES_RELEVANT(window, display) \
-  meta_window_should_be_showing (window) &&    \
-  window->screen == display->grab_screen &&    \
-  window         != display->grab_window &&    \
-  window->type   != META_WINDOW_DESKTOP &&     \
-  window->type   != META_WINDOW_MENU    &&     \
+#define WINDOW_EDGES_RELEVANT(window, display, screen) \
+  meta_window_should_be_showing (window) &&            \
+  window->screen == screen &&                          \
+  window->cur_grab == NULL &&                          \
+  window->type   != META_WINDOW_DESKTOP &&             \
+  window->type   != META_WINDOW_MENU    &&             \
   window->type   != META_WINDOW_SPLASHSCREEN
 
 struct ResistanceDataForAnEdge
@@ -44,8 +44,9 @@ struct ResistanceDataForAnEdge
   guint        timeout_id;
   int          timeout_edge_pos;
   gboolean     timeout_over;
-  GSourceFunc  timeout_func;
+  MetaEdgeResistanceFunc timeout_func;
   MetaWindow  *window;
+  MetaDevice  *device;
   int          keyboard_buildup;
 };
 typedef struct ResistanceDataForAnEdge ResistanceDataForAnEdge;
@@ -63,7 +64,9 @@ struct MetaEdgeResistanceData
   ResistanceDataForAnEdge bottom_data;
 };
 
-static void compute_resistance_and_snapping_edges (MetaDisplay *display);
+static MetaEdgeResistanceData *
+        compute_resistance_and_snapping_edges (MetaDisplay *display,
+                                               MetaScreen  *screen);
 
 /* !WARNING!: this function can return invalid indices (namely, either -1 or
  * edges->len); this is by design, but you need to remember this.
@@ -318,20 +321,22 @@ edge_resistance_timeout (gpointer data)
 
   resistance_data->timeout_over = TRUE;
   resistance_data->timeout_id = 0;
-  (*resistance_data->timeout_func)(resistance_data->window);
+  (*resistance_data->timeout_func) (resistance_data->window,
+                                    resistance_data->device);
 
   return FALSE;
 }
 
 static int
 apply_edge_resistance (MetaWindow                *window,
+                       MetaDevice                *device,
                        int                        old_pos,
                        int                        new_pos,
                        const MetaRectangle       *old_rect,
                        const MetaRectangle       *new_rect,
                        GArray                    *edges,
                        ResistanceDataForAnEdge   *resistance_data,
-                       GSourceFunc                timeout_func,
+                       MetaEdgeResistanceFunc     timeout_func,
                        gboolean                   xdir,
                        gboolean                   keyboard_op)
 {
@@ -445,6 +450,7 @@ apply_edge_resistance (MetaWindow                *window,
                   resistance_data->timeout_over = FALSE;
                   resistance_data->timeout_func = timeout_func;
                   resistance_data->window = window;
+                  resistance_data->device = device;
                 }
               if (!resistance_data->timeout_over &&
                   timeout_length_ms != 0)
@@ -533,29 +539,28 @@ apply_edge_snapping (int                  old_pos,
  * a proposed new position (ignoring edge resistance/snapping), and then
  * applies edge resistance to EACH edge (separately) updating new_outer.
  * It returns true if new_outer is modified, false otherwise.
- *
- * display->grab_edge_resistance_data MUST already be setup or calling this
- * function will cause a crash.
  */
 static gboolean 
-apply_edge_resistance_to_each_side (MetaDisplay         *display,
-                                    MetaWindow          *window,
-                                    const MetaRectangle *old_outer,
-                                    MetaRectangle       *new_outer,
-                                    GSourceFunc          timeout_func,
-                                    gboolean             auto_snap,
-                                    gboolean             keyboard_op,
-                                    gboolean             is_resize)
+apply_edge_resistance_to_each_side (MetaDisplay            *display,
+                                    MetaWindow             *window,
+                                    MetaDevice             *device,
+                                    const MetaRectangle    *old_outer,
+                                    MetaRectangle          *new_outer,
+                                    MetaEdgeResistanceFunc  timeout_func,
+                                    gboolean                auto_snap,
+                                    gboolean                keyboard_op,
+                                    gboolean                is_resize)
 {
   MetaEdgeResistanceData *edge_data;
   MetaRectangle           modified_rect;
   gboolean                modified;
   int new_left, new_right, new_top, new_bottom;
 
-  if (display->grab_edge_resistance_data == NULL)
-    compute_resistance_and_snapping_edges (display);
+  edge_data = g_hash_table_lookup (display->edge_resistance_info,
+                                   window->screen);
 
-  edge_data = display->grab_edge_resistance_data;
+  if (!edge_data)
+    edge_data = compute_resistance_and_snapping_edges (display, window->screen);
 
   if (auto_snap)
     {
@@ -601,7 +606,7 @@ apply_edge_resistance_to_each_side (MetaDisplay         *display,
       if (!is_resize || window->size_hints.width_inc == 1)
         {
           /* Now, apply the normal horizontal edge resistance */
-          new_left   = apply_edge_resistance (window,
+          new_left   = apply_edge_resistance (window, device,
                                               BOX_LEFT (*old_outer),
                                               BOX_LEFT (*new_outer),
                                               old_outer,
@@ -611,7 +616,7 @@ apply_edge_resistance_to_each_side (MetaDisplay         *display,
                                               timeout_func,
                                               TRUE,
                                               keyboard_op);
-          new_right  = apply_edge_resistance (window,
+          new_right  = apply_edge_resistance (window, device,
                                               BOX_RIGHT (*old_outer),
                                               BOX_RIGHT (*new_outer),
                                               old_outer,
@@ -630,7 +635,7 @@ apply_edge_resistance_to_each_side (MetaDisplay         *display,
       /* Same for vertical resizes... */
       if (!is_resize || window->size_hints.height_inc == 1)
         {
-          new_top    = apply_edge_resistance (window,
+          new_top    = apply_edge_resistance (window, device,
                                               BOX_TOP (*old_outer),
                                               BOX_TOP (*new_outer),
                                               old_outer,
@@ -640,7 +645,7 @@ apply_edge_resistance_to_each_side (MetaDisplay         *display,
                                               timeout_func,
                                               FALSE,
                                               keyboard_op);
-          new_bottom = apply_edge_resistance (window,
+          new_bottom = apply_edge_resistance (window, device,
                                               BOX_BOTTOM (*old_outer),
                                               BOX_BOTTOM (*new_outer),
                                               old_outer,
@@ -669,15 +674,20 @@ apply_edge_resistance_to_each_side (MetaDisplay         *display,
 }
 
 void
-meta_display_cleanup_edges (MetaDisplay *display)
+meta_display_cleanup_edges (MetaDisplay *display,
+                            MetaScreen  *screen)
 {
   guint i,j;
-  MetaEdgeResistanceData *edge_data = display->grab_edge_resistance_data;
+  MetaEdgeResistanceData *edge_data;
   GHashTable *edges_to_be_freed;
 
+  edge_data = g_hash_table_lookup (display->edge_resistance_info, screen);
+
   if (edge_data == NULL) /* Not currently cached */
     return;
 
+  g_hash_table_steal (display->edge_resistance_info, screen);
+
   /* We first need to clean out any window edges */
   edges_to_be_freed = g_hash_table_new_full (g_direct_hash, g_direct_equal,
                                              g_free, NULL);
@@ -750,8 +760,7 @@ meta_display_cleanup_edges (MetaDisplay *display)
       edge_data->bottom_data.timeout_id != 0)
     g_source_remove (edge_data->bottom_data.timeout_id);
 
-  g_free (display->grab_edge_resistance_data);
-  display->grab_edge_resistance_data = NULL;
+  g_free (edge_data);
 }
 
 static int
@@ -763,8 +772,9 @@ stupid_sort_requiring_extra_pointer_dereference (gconstpointer a,
   return meta_rectangle_edge_cmp_ignore_type (*a_edge, *b_edge);
 }
 
-static void
+static MetaEdgeResistanceData *
 cache_edges (MetaDisplay *display,
+             MetaScreen  *screen,
              GList *window_edges,
              GList *monitor_edges,
              GList *screen_edges)
@@ -848,9 +858,8 @@ cache_edges (MetaDisplay *display,
   /*
    * 2nd: Allocate the edges
    */
-  g_assert (display->grab_edge_resistance_data == NULL);
-  display->grab_edge_resistance_data = g_new0 (MetaEdgeResistanceData, 1);
-  edge_data = display->grab_edge_resistance_data;
+  edge_data = g_new0 (MetaEdgeResistanceData, 1);
+
   edge_data->left_edges   = g_array_sized_new (FALSE,
                                                FALSE,
                                                sizeof(MetaEdge*),
@@ -917,21 +926,21 @@ cache_edges (MetaDisplay *display,
    * avoided this sort by sticking them into the array with some simple
    * merging of the lists).
    */
-  g_array_sort (display->grab_edge_resistance_data->left_edges, 
+  g_array_sort (edge_data->left_edges,
                 stupid_sort_requiring_extra_pointer_dereference);
-  g_array_sort (display->grab_edge_resistance_data->right_edges, 
+  g_array_sort (edge_data->right_edges,
                 stupid_sort_requiring_extra_pointer_dereference);
-  g_array_sort (display->grab_edge_resistance_data->top_edges, 
+  g_array_sort (edge_data->top_edges,
                 stupid_sort_requiring_extra_pointer_dereference);
-  g_array_sort (display->grab_edge_resistance_data->bottom_edges, 
+  g_array_sort (edge_data->bottom_edges,
                 stupid_sort_requiring_extra_pointer_dereference);
+
+  return edge_data;
 }
 
 static void
-initialize_grab_edge_resistance_data (MetaDisplay *display)
+initialize_grab_edge_resistance_data (MetaEdgeResistanceData *edge_data)
 {
-  MetaEdgeResistanceData *edge_data = display->grab_edge_resistance_data;
-
   edge_data->left_data.timeout_setup   = FALSE;
   edge_data->right_data.timeout_setup  = FALSE;
   edge_data->top_data.timeout_setup    = FALSE;
@@ -943,8 +952,9 @@ initialize_grab_edge_resistance_data (MetaDisplay *display)
   edge_data->bottom_data.keyboard_buildup = 0;
 }
 
-static void
-compute_resistance_and_snapping_edges (MetaDisplay *display)
+static MetaEdgeResistanceData *
+compute_resistance_and_snapping_edges (MetaDisplay *display,
+                                       MetaScreen  *screen)
 {
   GList *stacked_windows;
   GList *cur_window_iter;
@@ -956,18 +966,17 @@ compute_resistance_and_snapping_edges (MetaDisplay *display)
    * in the layer that we are working on
    */
   GSList *rem_windows, *rem_win_stacking;
+  MetaEdgeResistanceData *edge_data;
 
-  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);
+              "Computing edges to resist-movement or snap-to for screen %s.\n",
+              screen->screen_name);
 
   /*
    * 1st: Get the list of relevant windows, from bottom to top
    */
   stacked_windows = 
-    meta_stack_list_windows (display->grab_screen->stack,
-                             display->grab_screen->active_workspace);
+    meta_stack_list_windows (screen->stack, screen->active_workspace);
 
   /*
    * 2nd: we need to separate that stacked list into a list of windows that
@@ -981,7 +990,7 @@ compute_resistance_and_snapping_edges (MetaDisplay *display)
   while (cur_window_iter != NULL)
     {
       MetaWindow *cur_window = cur_window_iter->data;
-      if (WINDOW_EDGES_RELEVANT (cur_window, display))
+      if (WINDOW_EDGES_RELEVANT (cur_window, display, screen))
         {
           MetaRectangle *new_rect;
           new_rect = g_new (MetaRectangle, 1);
@@ -1016,7 +1025,7 @@ compute_resistance_and_snapping_edges (MetaDisplay *display)
        * resistance (note that dock edges are considered screen edges
        * which are handled separately
        */
-      if (WINDOW_EDGES_RELEVANT (cur_window, display) &&
+      if (WINDOW_EDGES_RELEVANT (cur_window, display, screen) &&
           cur_window->type != META_WINDOW_DOCK)
         {
           GList *new_edges;
@@ -1028,7 +1037,7 @@ compute_resistance_and_snapping_edges (MetaDisplay *display)
            * by other windows or DOCKS, but that's handled below).
            */
           meta_rectangle_intersect (&cur_rect, 
-                                    &display->grab_screen->rect,
+                                    &screen->rect,
                                     &reduced);
 
           new_edges = NULL;
@@ -1123,32 +1132,36 @@ compute_resistance_and_snapping_edges (MetaDisplay *display)
    * 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->monitor_edges,
-               display->grab_screen->active_workspace->screen_edges);
+  edge_data = cache_edges (display, screen,
+                           edges,
+                           screen->active_workspace->monitor_edges,
+                           screen->active_workspace->screen_edges);
   g_list_free (edges);
 
   /*
    * 6th: Initialize the resistance timeouts and buildups
    */
-  initialize_grab_edge_resistance_data (display);
+  initialize_grab_edge_resistance_data (edge_data);
+
+  return edge_data;
 }
 
 /* Note that old_[xy] and new_[xy] are with respect to inner positions of
  * the window.
  */
 void
-meta_window_edge_resistance_for_move (MetaWindow  *window,
-                                      int          old_x,
-                                      int          old_y,
-                                      int         *new_x,
-                                      int         *new_y,
-                                      GSourceFunc  timeout_func,
-                                      gboolean     snap,
-                                      gboolean     is_keyboard_op)
+meta_window_edge_resistance_for_move (MetaWindow             *window,
+                                      MetaDevice             *device,
+                                      int                     old_x,
+                                      int                     old_y,
+                                      int                    *new_x,
+                                      int                    *new_y,
+                                      MetaEdgeResistanceFunc  timeout_func,
+                                      gboolean                snap,
+                                      gboolean                is_keyboard_op)
 {
   MetaRectangle old_outer, proposed_outer, new_outer;
+  MetaGrabInfo *grab_info;
   gboolean is_resize;
 
   meta_window_get_outer_rect (window, &old_outer);
@@ -1158,10 +1171,14 @@ meta_window_edge_resistance_for_move (MetaWindow  *window,
   proposed_outer.y += (*new_y - old_y);
   new_outer = proposed_outer;
 
-  window->display->grab_last_user_action_was_snap = snap;
+  grab_info = meta_display_get_grab_info (window->display, device);
+  g_assert (grab_info != NULL);
+
+  grab_info->grab_last_user_action_was_snap = snap;
   is_resize = FALSE;
   if (apply_edge_resistance_to_each_side (window->display,
                                           window,
+                                          device,
                                           &old_outer,
                                           &new_outer,
                                           timeout_func,
@@ -1223,18 +1240,20 @@ meta_window_edge_resistance_for_move (MetaWindow  *window,
  * sizes of the inner window.
  */
 void
-meta_window_edge_resistance_for_resize (MetaWindow  *window,
-                                        int          old_width,
-                                        int          old_height,
-                                        int         *new_width,
-                                        int         *new_height,
-                                        int          gravity,
-                                        GSourceFunc  timeout_func,
-                                        gboolean     snap,
-                                        gboolean     is_keyboard_op)
+meta_window_edge_resistance_for_resize (MetaWindow             *window,
+                                        MetaDevice             *device,
+                                        int                     old_width,
+                                        int                     old_height,
+                                        int                    *new_width,
+                                        int                    *new_height,
+                                        int                     gravity,
+                                        MetaEdgeResistanceFunc  timeout_func,
+                                        gboolean                snap,
+                                        gboolean                is_keyboard_op)
 {
   MetaRectangle old_outer, new_outer;
   int proposed_outer_width, proposed_outer_height;
+  MetaGrabInfo *grab_info;
   gboolean is_resize;
 
   meta_window_get_outer_rect (window, &old_outer);
@@ -1246,10 +1265,14 @@ meta_window_edge_resistance_for_resize (MetaWindow  *window,
                                       proposed_outer_width,
                                       proposed_outer_height);
 
-  window->display->grab_last_user_action_was_snap = snap;
+  grab_info = meta_display_get_grab_info (window->display, device);
+  g_assert (grab_info != NULL);
+
+  grab_info->grab_last_user_action_was_snap = snap;
   is_resize = TRUE;
   if (apply_edge_resistance_to_each_side (window->display,
                                           window,
+                                          device,
                                           &old_outer,
                                           &new_outer,
                                           timeout_func,

src/core/edge-resistance.h

@@ -26,23 +26,28 @@
 
 #include "window-private.h"
 
-void        meta_window_edge_resistance_for_move   (MetaWindow  *window,
-                                                    int          old_x,
-                                                    int          old_y,
-                                                    int         *new_x,
-                                                    int         *new_y,
-                                                    GSourceFunc  timeout_func,
-                                                    gboolean     snap,
-                                                    gboolean     is_keyboard_op);
-void        meta_window_edge_resistance_for_resize (MetaWindow  *window,
-                                                    int          old_width,
-                                                    int          old_height,
-                                                    int         *new_width,
-                                                    int         *new_height,
-                                                    int          gravity,
-                                                    GSourceFunc  timeout_func,
-                                                    gboolean     snap,
-                                                    gboolean     is_keyboard_op);
+typedef gboolean (* MetaEdgeResistanceFunc) (MetaWindow *window,
+                                             MetaDevice *device);
+
+void meta_window_edge_resistance_for_move   (MetaWindow             *window,
+                                             MetaDevice             *device,
+                                             int                     old_x,
+                                             int                     old_y,
+                                             int                    *new_x,
+                                             int                    *new_y,
+                                             MetaEdgeResistanceFunc  func,
+                                             gboolean                snap,
+                                             gboolean                is_keyboard_op);
+void meta_window_edge_resistance_for_resize (MetaWindow             *window,
+                                             MetaDevice             *device,
+                                             int                     old_width,
+                                             int                     old_height,
+                                             int                    *new_width,
+                                             int                    *new_height,
+                                             int                     gravity,
+                                             MetaEdgeResistanceFunc  func,
+                                             gboolean                snap,
+                                             gboolean                is_keyboard_op);
 
 #endif /* META_EDGE_RESISTANCE_H */
 

src/core/frame.c

@@ -28,6 +28,7 @@
 #include "bell.h"
 #include <meta/errors.h>
 #include "keybindings-private.h"
+#include "device-pointer.h"
 
 #include <X11/extensions/Xrender.h>
 
@@ -64,7 +65,7 @@ meta_window_ensure_frame (MetaWindow *window)
   frame->child_y = 0;
   frame->bottom_height = 0;
   frame->right_width = 0;
-  frame->current_cursor = 0;
+  frame->cursors = g_hash_table_new (NULL, NULL);
 
   frame->mapped = FALSE;
   frame->is_flashing = FALSE;
@@ -228,9 +229,10 @@ meta_window_destroy_frame (MetaWindow *window)
 
   /* Move keybindings to window instead of frame */
   meta_window_grab_keys (window);
-  
+
+  g_hash_table_destroy (frame->cursors);
   g_free (frame);
-  
+
   /* Put our state back where it should be */
   meta_window_queue (window, META_QUEUE_CALC_SHOWING);
   meta_window_queue (window, META_QUEUE_MOVE_RESIZE);
@@ -244,6 +246,12 @@ meta_frame_get_flags (MetaFrame *frame)
 
   flags = 0;
 
+  /* Disallow frame operations
+   * while the popup menu is open.
+   */
+  if (frame->window->menu)
+    return flags;
+
   if (frame->window->border_only)
     {
       ; /* FIXME this may disable the _function_ as well as decor
@@ -377,8 +385,7 @@ meta_frame_sync_to_window (MetaFrame *frame,
       /* If we're interactively resizing the frame, repaint
        * it immediately so we don't start to lag.
        */
-      if (frame->window->display->grab_window ==
-          frame->window)
+      if (frame->window->cur_grab != NULL)
         meta_ui_repaint_frame (frame->window->screen->ui,
                                frame->xwindow);
     }
@@ -403,22 +410,22 @@ meta_frame_queue_draw (MetaFrame *frame)
 }
 
 void
-meta_frame_set_screen_cursor (MetaFrame	*frame,
-			      MetaCursor cursor)
+meta_frame_set_screen_cursor (MetaFrame	 *frame,
+                              MetaDevice *pointer,
+			      MetaCursor  cursor)
 {
-  Cursor xcursor;
-  if (cursor == frame->current_cursor)
+  MetaCursor old_cursor;
+
+  old_cursor = GPOINTER_TO_UINT (g_hash_table_lookup (frame->cursors, pointer));
+
+  if (cursor == old_cursor)
     return;
-  frame->current_cursor = cursor;
-  if (cursor == META_CURSOR_DEFAULT)
-    XUndefineCursor (frame->window->display->xdisplay, frame->xwindow);
-  else
-    { 
-      xcursor = meta_display_create_x_cursor (frame->window->display, cursor);
-      XDefineCursor (frame->window->display->xdisplay, frame->xwindow, xcursor);
-      XFlush (frame->window->display->xdisplay);
-      XFreeCursor (frame->window->display->xdisplay, xcursor);
-    }
+
+  g_hash_table_insert (frame->cursors, pointer,
+                       GUINT_TO_POINTER (cursor));
+  meta_device_pointer_set_window_cursor (META_DEVICE_POINTER (pointer),
+                                         frame->xwindow, cursor);
+  XFlush (frame->window->display->xdisplay);
 }
 
 Window

src/core/frame.h

@@ -34,7 +34,7 @@ struct _MetaFrame
   /* reparent window */
   Window xwindow;
 
-  MetaCursor current_cursor;
+  GHashTable *cursors;
 
   /* This rect is trusted info from where we put the
    * frame, not the result of ConfigureNotify
@@ -76,7 +76,8 @@ gboolean meta_frame_sync_to_window (MetaFrame         *frame,
 
 cairo_region_t *meta_frame_get_frame_bounds (MetaFrame *frame);
 
-void meta_frame_set_screen_cursor (MetaFrame	*frame,
+void meta_frame_set_screen_cursor (MetaFrame   *frame,
+                                   MetaDevice  *pointer,
 				   MetaCursor	cursor);
 
 #endif

src/core/input-events.c

@@ -0,0 +1,803 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/* XEvent utility methods */
+
+/*
+ * Copyright (C) 2011 Carlos Garnacho
+ *
+ * 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 "input-events.h"
+#include "devices-core.h"
+#include "device-map-private.h"
+#include <X11/Xlib.h>
+
+#ifdef HAVE_XINPUT2
+#include <X11/extensions/XInput2.h>
+#endif
+
+/* Quite a hack: normalizes XI2 events to their
+ * core event equivalent, so most code is shared
+ * for both implementations, code handling input
+ * events should use the helper functions so
+ * the actual event is treated correctly.
+ */
+gboolean
+meta_input_event_get_type (MetaDisplay *display,
+                           XEvent      *ev,
+                           guint       *ev_type)
+{
+  guint type = 0; /* Silence gcc */
+  gboolean retval = TRUE;
+
+#ifdef HAVE_XINPUT2
+  if (display->have_xinput2 &&
+      ev->type == GenericEvent &&
+      ev->xcookie.extension == display->xinput2_opcode)
+    {
+      XIEvent *xev;
+
+      /* NB: GDK event filters already have generic events
+       * allocated, so no need to do XGetEventData() on our own
+       */
+      xev = (XIEvent *) ev->xcookie.data;
+
+      switch (xev->evtype)
+        {
+        case XI_Motion:
+          type = MotionNotify;
+          break;
+        case XI_ButtonPress:
+          type = ButtonPress;
+          break;
+        case XI_ButtonRelease:
+          type = ButtonRelease;
+          break;
+        case XI_KeyPress:
+          type = KeyPress;
+          break;
+        case XI_KeyRelease:
+          type = KeyRelease;
+          break;
+        case XI_FocusIn:
+          type = FocusIn;
+          break;
+        case XI_FocusOut:
+          type = FocusOut;
+          break;
+        case XI_Enter:
+          type = EnterNotify;
+          break;
+        case XI_Leave:
+          type = LeaveNotify;
+          break;
+#ifdef HAVE_XTOUCH
+        case XI_TouchBegin:
+          type = ButtonPress;
+          break;
+        case XI_TouchEnd:
+          type = ButtonRelease;
+          break;
+        case XI_TouchUpdate:
+          if (((XIDeviceEvent *) xev)->flags & XITouchPendingEnd)
+            {
+              /* Consider these events like TouchEnd, as we
+               * could still need to call XIAllowTouchEvents()
+               * for this touch sequence so we get the real
+               * TouchEnd event, handling this event type the
+               * second time it arrives should be a NO-OP.
+               */
+              type = ButtonRelease;
+            }
+          else
+            type = MotionNotify;
+          break;
+#endif /* HAVE_XTOUCH */
+        default:
+          retval = FALSE;
+          break;
+        }
+    }
+  else
+#endif /* HAVE_XINPUT2 */
+    {
+      switch (ev->type)
+        {
+        case MotionNotify:
+        case ButtonPress:
+        case ButtonRelease:
+        case KeyPress:
+        case KeyRelease:
+        case FocusIn:
+        case FocusOut:
+        case EnterNotify:
+        case LeaveNotify:
+          type = ev->type;
+          break;
+        default:
+          retval = FALSE;
+          break;
+        }
+    }
+
+  if (retval)
+    {
+      if (ev_type)
+        *ev_type = type;
+
+      return TRUE;
+    }
+  else
+    return FALSE;
+}
+
+gboolean
+meta_input_event_is_type (MetaDisplay *display,
+                          XEvent      *ev,
+                          guint        ev_type)
+{
+  guint type;
+
+  if (!meta_input_event_get_type (display, ev, &type))
+    return FALSE;
+
+  return (type == ev_type);
+}
+
+gboolean
+meta_input_event_get_touch_id (MetaDisplay *display,
+                               XEvent      *ev,
+                               guint       *touch_id)
+{
+#if defined(HAVE_XINPUT2) && defined(HAVE_XTOUCH)
+  if (ev->type == GenericEvent &&
+      ev->xcookie.extension == display->xinput2_opcode)
+    {
+      XIEvent *xev;
+
+      g_assert (display->have_xinput2 == TRUE);
+      xev = (XIEvent *) ev->xcookie.data;
+
+      switch (xev->evtype)
+        {
+        case XI_TouchBegin:
+        case XI_TouchEnd:
+        case XI_TouchUpdate:
+          if (touch_id)
+            *touch_id = ((XIDeviceEvent *) xev)->detail;
+          return TRUE;
+        default:
+          return FALSE;
+        }
+    }
+#endif /* HAVE_XINPUT2 && HAVE_XTOUCH */
+
+  return FALSE;
+}
+
+Window
+meta_input_event_get_window (MetaDisplay *display,
+                             XEvent      *ev)
+{
+#ifdef HAVE_XINPUT2
+  if (ev->type == GenericEvent &&
+      ev->xcookie.extension == display->xinput2_opcode)
+    {
+      XIEvent *xev;
+
+      g_assert (display->have_xinput2 == TRUE);
+
+      /* GDK event filters already have generic events allocated */
+      xev = (XIEvent *) ev->xcookie.data;
+
+      switch (xev->evtype)
+        {
+        case XI_Motion:
+        case XI_ButtonPress:
+        case XI_ButtonRelease:
+        case XI_KeyPress:
+        case XI_KeyRelease:
+#ifdef HAVE_XTOUCH
+        case XI_TouchBegin:
+        case XI_TouchEnd:
+        case XI_TouchUpdate:
+#endif /* HAVE_XTOUCH */
+          return ((XIDeviceEvent *) xev)->event;
+        case XI_FocusIn:
+        case XI_FocusOut:
+        case XI_Enter:
+        case XI_Leave:
+          return ((XIEnterEvent *) xev)->event;
+        default:
+          return None;
+        }
+    }
+  else
+#endif /* HAVE_XINPUT2 */
+    return ev->xany.window;
+}
+
+Window
+meta_input_event_get_root_window (MetaDisplay *display,
+                                  XEvent      *ev)
+{
+#ifdef HAVE_XINPUT2
+  if (ev->type == GenericEvent &&
+      ev->xcookie.extension == display->xinput2_opcode)
+    {
+      XIEvent *xev;
+
+      g_assert (display->have_xinput2 == TRUE);
+
+      xev = (XIEvent *) ev->xcookie.data;
+
+      switch (xev->evtype)
+        {
+        case XI_Motion:
+        case XI_ButtonPress:
+        case XI_ButtonRelease:
+        case XI_KeyPress:
+        case XI_KeyRelease:
+#ifdef HAVE_XTOUCH
+        case XI_TouchBegin:
+        case XI_TouchEnd:
+        case XI_TouchUpdate:
+#endif /* HAVE_XTOUCH */
+          return ((XIDeviceEvent *) xev)->root;
+        case XI_FocusIn:
+        case XI_FocusOut:
+        case XI_Enter:
+        case XI_Leave:
+          return ((XIEnterEvent *) xev)->root;
+        default:
+          break;
+        }
+    }
+  else
+#endif /* HAVE_XINPUT2 */
+    {
+      switch (ev->type)
+        {
+        case KeyPress:
+        case KeyRelease:
+          return ev->xkey.root;
+        case ButtonPress:
+        case ButtonRelease:
+          return ev->xbutton.root;
+        case EnterNotify:
+        case LeaveNotify:
+          return ev->xcrossing.root;
+        case MotionNotify:
+          return ev->xbutton.root;
+        default:
+          break;
+        }
+    }
+
+  return None;
+}
+
+Time
+meta_input_event_get_time (MetaDisplay *display,
+                           XEvent      *ev)
+{
+#ifdef HAVE_XINPUT2
+  if (ev->type == GenericEvent &&
+      ev->xcookie.extension == display->xinput2_opcode)
+    {
+      XIEvent *xev;
+
+      g_assert (display->have_xinput2 == TRUE);
+
+      xev = (XIEvent *) ev->xcookie.data;
+
+      switch (xev->evtype)
+        {
+        case XI_Motion:
+        case XI_ButtonPress:
+        case XI_ButtonRelease:
+        case XI_KeyPress:
+        case XI_KeyRelease:
+#ifdef HAVE_XTOUCH
+        case XI_TouchBegin:
+        case XI_TouchEnd:
+        case XI_TouchUpdate:
+#endif /* HAVE_XTOUCH */
+          return ((XIDeviceEvent *) xev)->time;
+        case XI_FocusIn:
+        case XI_FocusOut:
+        case XI_Enter:
+        case XI_Leave:
+          return ((XIEnterEvent *) xev)->time;
+        default:
+          break;
+        }
+    }
+  else
+#endif /* HAVE_XINPUT2 */
+    {
+      switch (ev->type)
+        {
+        case KeyPress:
+        case KeyRelease:
+          return ev->xkey.time;
+        case ButtonPress:
+        case ButtonRelease:
+          return ev->xbutton.time;
+        case EnterNotify:
+        case LeaveNotify:
+          return ev->xcrossing.time;
+        case MotionNotify:
+          return ev->xmotion.time;
+        default:
+          break;
+        }
+    }
+
+  return CurrentTime;
+}
+
+gboolean
+meta_input_event_get_coordinates (MetaDisplay *display,
+                                  XEvent      *ev,
+                                  gdouble     *x_ret,
+                                  gdouble     *y_ret,
+                                  gdouble     *x_root_ret,
+                                  gdouble     *y_root_ret)
+{
+  gdouble x, y, x_root, y_root;
+  gboolean retval = TRUE;
+
+#ifdef HAVE_XINPUT2
+  if (ev->type == GenericEvent &&
+      ev->xcookie.extension == display->xinput2_opcode)
+    {
+      XIEvent *xev;
+
+      g_assert (display->have_xinput2 == TRUE);
+
+      xev = (XIEvent *) ev->xcookie.data;
+
+      switch (xev->evtype)
+        {
+        case XI_Motion:
+        case XI_ButtonPress:
+        case XI_ButtonRelease:
+        case XI_KeyPress:
+        case XI_KeyRelease:
+#ifdef HAVE_XTOUCH
+        case XI_TouchBegin:
+        case XI_TouchEnd:
+        case XI_TouchUpdate:
+#endif /* HAVE_XTOUCH */
+          {
+            XIDeviceEvent *event = (XIDeviceEvent *) xev;
+
+            x = event->event_x;
+            y = event->event_y;
+            x_root = event->root_x;
+            y_root = event->root_y;
+          }
+
+          break;
+        case XI_FocusIn:
+        case XI_FocusOut:
+        case XI_Enter:
+        case XI_Leave:
+          {
+            XIEnterEvent *event = (XIEnterEvent *) xev;
+
+            x = event->event_x;
+            y = event->event_y;
+            x_root = event->root_x;
+            y_root = event->root_y;
+          }
+
+          break;
+        default:
+          retval = FALSE;
+          break;
+        }
+    }
+  else
+#endif /* HAVE_XINPUT2 */
+    {
+      switch (ev->type)
+        {
+        case KeyPress:
+        case KeyRelease:
+          x = ev->xkey.x;
+          y = ev->xkey.y;
+          x_root = ev->xkey.x_root;
+          y_root = ev->xkey.y_root;
+          break;
+        case ButtonPress:
+        case ButtonRelease:
+          x = ev->xbutton.x;
+          y = ev->xbutton.y;
+          x_root = ev->xbutton.x_root;
+          y_root = ev->xbutton.y_root;
+          break;
+        case EnterNotify:
+        case LeaveNotify:
+          x = ev->xcrossing.x;
+          y = ev->xcrossing.y;
+          x_root = ev->xcrossing.x_root;
+          y_root = ev->xcrossing.y_root;
+          break;
+        case MotionNotify:
+          x = ev->xmotion.x;
+          y = ev->xmotion.y;
+          x_root = ev->xmotion.x_root;
+          y_root = ev->xmotion.y_root;
+          break;
+        default:
+          retval = FALSE;
+          break;
+        }
+    }
+
+  if (retval)
+    {
+      if (x_ret)
+        *x_ret = x;
+
+      if (y_ret)
+        *y_ret = y;
+
+      if (x_root_ret)
+        *x_root_ret = x_root;
+
+      if (y_root_ret)
+        *y_root_ret = y_root;
+    }
+
+  return retval;
+}
+
+gboolean
+meta_input_event_get_state (MetaDisplay *display,
+                            XEvent      *ev,
+                            guint       *state)
+{
+  gboolean retval = TRUE;
+  guint s;
+
+#ifdef HAVE_XINPUT2
+  if (ev->type == GenericEvent &&
+      ev->xcookie.extension == display->xinput2_opcode)
+    {
+      XIEvent *xev;
+
+      g_assert (display->have_xinput2 == TRUE);
+
+      xev = (XIEvent *) ev->xcookie.data;
+
+      switch (xev->evtype)
+        {
+        case XI_Motion:
+        case XI_ButtonPress:
+        case XI_ButtonRelease:
+        case XI_KeyPress:
+        case XI_KeyRelease:
+#ifdef HAVE_XTOUCH
+        case XI_TouchBegin:
+        case XI_TouchEnd:
+        case XI_TouchUpdate:
+#endif /* HAVE_XTOUCH */
+          s = ((XIDeviceEvent *) xev)->mods.effective;
+          break;
+        case XI_FocusIn:
+        case XI_FocusOut:
+        case XI_Enter:
+        case XI_Leave:
+          s = ((XIDeviceEvent *) xev)->mods.effective;
+          break;
+        default:
+          retval = FALSE;
+          break;
+        }
+    }
+  else
+#endif /* HAVE_XINPUT2 */
+    {
+      switch (ev->type)
+        {
+        case KeyPress:
+        case KeyRelease:
+          s = ev->xkey.state;
+          break;
+        case ButtonPress:
+        case ButtonRelease:
+          s = ev->xbutton.state;
+          break;
+        case EnterNotify:
+        case LeaveNotify:
+          s = ev->xcrossing.state;
+          break;
+        case MotionNotify:
+          s = ev->xmotion.state;
+          break;
+        default:
+          retval = FALSE;
+          break;
+        }
+    }
+
+  if (retval && state)
+    *state = s;
+
+  return retval;
+}
+
+gboolean
+meta_input_event_get_keycode (MetaDisplay *display,
+                              XEvent      *ev,
+                              guint       *keycode)
+{
+#ifdef HAVE_XINPUT2
+  if (ev->type == GenericEvent &&
+      ev->xcookie.extension == display->xinput2_opcode)
+    {
+      XIEvent *xev;
+
+      g_assert (display->have_xinput2 == TRUE);
+
+      xev = (XIEvent *) ev->xcookie.data;
+
+      if (xev->evtype == XI_KeyPress ||
+          xev->evtype == XI_KeyRelease)
+        {
+          if (keycode)
+            {
+              /* The detail field contains keycode for key events */
+              *keycode = ((XIDeviceEvent *) xev)->detail;
+            }
+
+          return TRUE;
+        }
+    }
+  else
+#endif /* HAVE_XINPUT2 */
+    {
+      if (ev->type == KeyPress ||
+          ev->type == KeyRelease)
+        {
+          if (keycode)
+            *keycode = ev->xkey.keycode;
+
+          return TRUE;
+        }
+    }
+
+  return FALSE;
+}
+
+gboolean
+meta_input_event_get_button (MetaDisplay *display,
+                             XEvent      *ev,
+                             guint       *button)
+{
+#ifdef HAVE_XINPUT2
+  if (ev->type == GenericEvent &&
+      ev->xcookie.extension == display->xinput2_opcode)
+    {
+      XIEvent *xev;
+
+      g_assert (display->have_xinput2 == TRUE);
+
+      xev = (XIEvent *) ev->xcookie.data;
+
+      if (xev->evtype == XI_ButtonPress ||
+          xev->evtype == XI_ButtonRelease)
+        {
+          if (button)
+            {
+              /* The detail field contains
+               * button number for button events
+               */
+              *button = ((XIDeviceEvent *) xev)->detail;
+            }
+
+          return TRUE;
+        }
+    }
+  else
+#endif /* HAVE_XINPUT2 */
+    {
+      if (ev->type == ButtonPress ||
+          ev->type == ButtonRelease)
+        {
+          if (button)
+            *button = ev->xbutton.button;
+
+          return TRUE;
+        }
+    }
+
+  return FALSE;
+}
+
+/* NB: Also works for focus in/out events */
+gboolean
+meta_input_event_get_crossing_details (MetaDisplay *display,
+                                       XEvent      *ev,
+                                       guint       *mode_out,
+                                       guint       *detail_out)
+{
+  gboolean retval = TRUE;
+  guint mode, detail;
+
+#ifdef HAVE_XINPUT2
+  if (ev->type == GenericEvent &&
+      ev->xcookie.extension == display->xinput2_opcode)
+    {
+      XIEvent *xev;
+
+      g_assert (display->have_xinput2 == TRUE);
+
+      xev = (XIEvent *) ev->xcookie.data;
+
+      if (xev->evtype == XI_Enter ||
+          xev->evtype == XI_Leave ||
+          xev->evtype == XI_FocusIn ||
+          xev->evtype == XI_FocusOut)
+        {
+          mode = ((XIEnterEvent *) xev)->mode;
+          detail = ((XIEnterEvent *) xev)->detail;
+        }
+      else
+        retval = FALSE;
+    }
+  else
+#endif /* HAVE_XINPUT2 */
+    {
+      if (ev->type == EnterNotify ||
+          ev->type == LeaveNotify)
+        {
+          mode = ev->xcrossing.mode;
+          detail = ev->xcrossing.detail;
+        }
+      else if (ev->type == FocusIn ||
+               ev->type == FocusOut)
+        {
+          mode = ev->xfocus.mode;
+          detail = ev->xfocus.detail;
+        }
+      else
+        retval = FALSE;
+    }
+
+  if (retval)
+    {
+      if (mode_out)
+        *mode_out = mode;
+
+      if (detail_out)
+        *detail_out = detail;
+    }
+
+  return retval;
+}
+
+MetaDevice *
+meta_input_event_get_device (MetaDisplay *display,
+                             XEvent      *ev)
+{
+  guint evtype;
+
+  if (!meta_input_event_get_type (display, ev, &evtype))
+    return NULL;
+
+#ifdef HAVE_XINPUT2
+  if (ev->type == GenericEvent &&
+      ev->xcookie.extension == display->xinput2_opcode)
+    {
+      XIEvent *xev;
+
+      g_assert (display->have_xinput2 == TRUE);
+
+      xev = (XIEvent *) ev->xcookie.data;
+
+      switch (evtype)
+        {
+        case XI_Motion:
+        case XI_ButtonPress:
+        case XI_ButtonRelease:
+        case XI_KeyPress:
+        case XI_KeyRelease:
+#ifdef HAVE_XTOUCH
+        case XI_TouchBegin:
+        case XI_TouchEnd:
+        case XI_TouchUpdate:
+#endif /* HAVE_XTOUCH */
+          return meta_device_map_lookup (display->device_map,
+                                         ((XIDeviceEvent *) xev)->deviceid);
+        case XI_FocusIn:
+        case XI_FocusOut:
+        case XI_Enter:
+        case XI_Leave:
+          return meta_device_map_lookup (display->device_map,
+                                         ((XIEnterEvent *) xev)->deviceid);
+        default:
+          break;
+        }
+    }
+  else
+#endif
+    {
+      switch (ev->type)
+        {
+        case KeyPress:
+        case KeyRelease:
+        case FocusIn:
+        case FocusOut:
+          return meta_device_map_lookup (display->device_map,
+                                         META_CORE_KEYBOARD_ID);
+        default:
+          /* All other events are pointers' */
+          return meta_device_map_lookup (display->device_map,
+                                         META_CORE_POINTER_ID);
+        }
+    }
+
+  return NULL;
+}
+
+MetaDevice *
+meta_input_event_get_source_device (MetaDisplay *display,
+                                    XEvent      *ev)
+{
+#ifdef HAVE_XINPUT2
+  if (ev->type == GenericEvent &&
+      ev->xcookie.extension == display->xinput2_opcode)
+    {
+      XIEvent *xev;
+
+      g_assert (display->have_xinput2 == TRUE);
+
+      xev = (XIEvent *) ev->xcookie.data;
+
+      switch (xev->evtype)
+        {
+        case XI_Motion:
+        case XI_ButtonPress:
+        case XI_ButtonRelease:
+        case XI_KeyPress:
+        case XI_KeyRelease:
+#ifdef HAVE_XTOUCH
+        case XI_TouchBegin:
+        case XI_TouchEnd:
+        case XI_TouchUpdate:
+#endif /* HAVE_XTOUCH */
+          return meta_device_map_lookup (display->device_map,
+                                         ((XIDeviceEvent *) xev)->sourceid);
+        case XI_FocusIn:
+        case XI_FocusOut:
+        case XI_Enter:
+        case XI_Leave:
+          return meta_device_map_lookup (display->device_map,
+                                         ((XIEnterEvent *) xev)->sourceid);
+        default:
+          break;
+        }
+    }
+#endif
+
+  return NULL;
+}

src/core/input-events.h

@@ -0,0 +1,88 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/**
+ * \file event.h  Utility functions for handling events
+ *
+ * Handling events.
+ * This file contains helper methods to handle events, specially
+ * input events, which can be either core or XInput2.
+ */
+
+/*
+ * Copyright (C) 2011 Carlos Garnacho
+ *
+ * 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_EVENT_H
+#define META_EVENT_H
+
+#include <config.h>
+#include <X11/Xlib.h>
+#include "display-private.h"
+#include <meta/device-map.h>
+
+/* Add an extra flag for touch events in
+ * evmasks, an arbitrarily high bit is taken.
+ */
+#define META_INPUT_TOUCH_EVENTS_MASK (1L<<31)
+
+gboolean meta_input_event_get_type          (MetaDisplay *display,
+                                             XEvent      *ev,
+                                             guint       *ev_type);
+gboolean meta_input_event_is_type           (MetaDisplay *display,
+                                             XEvent      *ev,
+                                             guint        ev_type);
+
+gboolean meta_input_event_get_touch_id      (MetaDisplay *display,
+                                             XEvent      *ev,
+                                             guint       *touch_id);
+
+Window   meta_input_event_get_window        (MetaDisplay *display,
+                                             XEvent      *ev);
+Window   meta_input_event_get_root_window   (MetaDisplay *display,
+                                             XEvent      *ev);
+
+Time     meta_input_event_get_time          (MetaDisplay *display,
+                                             XEvent      *ev);
+
+gboolean meta_input_event_get_coordinates   (MetaDisplay *display,
+                                             XEvent      *ev,
+                                             gdouble     *x_ret,
+                                             gdouble     *y_ret,
+                                             gdouble     *x_root_ret,
+                                             gdouble     *y_root_ret);
+
+gboolean meta_input_event_get_state         (MetaDisplay *display,
+                                             XEvent      *ev,
+                                             guint       *state);
+gboolean meta_input_event_get_keycode       (MetaDisplay *display,
+                                             XEvent      *ev,
+                                             guint       *keycode);
+gboolean meta_input_event_get_button        (MetaDisplay *display,
+                                             XEvent      *event,
+                                             guint       *button);
+gboolean meta_input_event_get_crossing_details (MetaDisplay *display,
+                                                XEvent      *ev,
+                                                guint       *mode_out,
+                                                guint       *detail_out);
+
+MetaDevice *meta_input_event_get_device        (MetaDisplay *display,
+                                                XEvent      *ev);
+MetaDevice *meta_input_event_get_source_device (MetaDisplay *display,
+                                                XEvent      *ev);
+
+#endif /* META_EVENT_H */

src/core/keybindings-private.h

@@ -36,14 +36,18 @@ void     meta_display_shutdown_keys         (MetaDisplay *display);
 void     meta_screen_grab_keys              (MetaScreen  *screen);
 void     meta_screen_ungrab_keys            (MetaScreen  *screen);
 gboolean meta_screen_grab_all_keys          (MetaScreen  *screen,
+                                             MetaDevice  *device,
                                              guint32      timestamp);
-void     meta_screen_ungrab_all_keys        (MetaScreen  *screen, 
+void     meta_screen_ungrab_all_keys        (MetaScreen  *screen,
+                                             MetaDevice  *device,
                                              guint32      timestamp);
 void     meta_window_grab_keys              (MetaWindow  *window);
 void     meta_window_ungrab_keys            (MetaWindow  *window);
 gboolean meta_window_grab_all_keys          (MetaWindow  *window,
+                                             MetaDevice  *device,
                                              guint32      timestamp);
 void     meta_window_ungrab_all_keys        (MetaWindow  *window,
+                                             MetaDevice  *device,
                                              guint32      timestamp);
 gboolean meta_display_process_key_event     (MetaDisplay *display,
                                              MetaWindow  *window,

src/core/main.c

@@ -311,9 +311,12 @@ static GSourceFuncs event_funcs = {
 static void
 meta_clutter_init (void)
 {
+  if (!meta_get_use_core_devices ())
+    clutter_x11_enable_xinput ();
+
   clutter_x11_set_display (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()));
   clutter_x11_disable_event_retrieval ();
-  
+
   if (CLUTTER_INIT_SUCCESS == clutter_init (NULL, NULL))
     {
       GSource *source = g_source_new (&event_funcs, sizeof (GSource));
@@ -424,6 +427,8 @@ meta_init (void)
     meta_set_verbose (TRUE);
   if (g_getenv ("MUTTER_DEBUG"))
     meta_set_debugging (TRUE);
+  if (g_getenv ("MUTTER_USE_CORE_DEVICES"))
+    meta_set_use_core_devices (TRUE);
 
   if (g_get_home_dir ())
     if (chdir (g_get_home_dir ()) < 0)

src/core/place.c

@@ -90,6 +90,7 @@ northwestcmp (gconstpointer a, gconstpointer b)
 
 static void
 find_next_cascade (MetaWindow *window,
+                   MetaDevice *pointer,
                    MetaFrameBorders *borders,
                    /* visible windows on relevant workspaces */
                    GList      *windows,
@@ -136,7 +137,7 @@ find_next_cascade (MetaWindow *window,
    * of NW corner of window frame.
    */
 
-  current = meta_screen_get_current_monitor (window->screen);
+  current = meta_screen_get_current_monitor (window->screen, pointer);
   meta_window_get_work_area_for_monitor (window, current->number, &work_area);
 
   cascade_x = MAX (0, work_area.x);
@@ -354,10 +355,17 @@ avoid_being_obscured_as_second_modal_dialog (MetaWindow *window,
    * know about the modal-to-the-main-window part.
    */
 
-  MetaWindow *focus_window;
+  MetaWindow *focus_window = NULL;
+  MetaFocusInfo *focus_info;
   MetaRectangle overlap;
+  MetaDevice *pointer, *keyboard;
 
-  focus_window = window->display->focus_window;
+  pointer = meta_window_guess_grab_pointer (window);
+  keyboard = meta_device_get_paired_device (pointer);
+  focus_info = meta_display_get_focus_info (window->display, keyboard);
+
+  if (focus_window)
+    focus_window = focus_info->focus_window;
 
   if (window->denied_focus_and_not_transient &&
       window->wm_state_modal && /* FIXME: Maybe do this for all transients? */
@@ -660,6 +668,7 @@ meta_window_place (MetaWindow        *window,
 {
   GList *windows;
   const MetaMonitorInfo *xi;
+  MetaDevice *pointer, *keyboard;
 
   /* frame member variables should NEVER be used in here, only
    * MetaFrameBorders. But remember borders == NULL
@@ -671,7 +680,9 @@ meta_window_place (MetaWindow        *window,
   meta_topic (META_DEBUG_PLACEMENT, "Placing window %s\n", window->desc);
 
   windows = NULL;
-  
+  pointer = meta_window_guess_grab_pointer (window);
+  keyboard = meta_device_get_paired_device (pointer);
+
   switch (window->type)
     {
       /* Run placement algorithm on these. */
@@ -815,7 +826,7 @@ meta_window_place (MetaWindow        *window,
       int w, h;
 
       /* Warning, this function is a round trip! */
-      xi = meta_screen_get_current_monitor (window->screen);
+      xi = meta_screen_get_current_monitor (window->screen, pointer);
 
       w = xi->rect.width;
       h = xi->rect.height;
@@ -860,8 +871,8 @@ meta_window_place (MetaWindow        *window,
   }
 
   /* Warning, this is a round trip! */
-  xi = meta_screen_get_current_monitor (window->screen);
-  
+  xi = meta_screen_get_current_monitor (window->screen, pointer);
+
   /* "Origin" placement algorithm */
   x = xi->rect.x;
   y = xi->rect.y;
@@ -899,8 +910,8 @@ meta_window_place (MetaWindow        *window,
   /* If no placement has been done, revert to cascade to avoid 
    * fully overlapping window (e.g. starting multiple terminals)
    * */
-  if (x == xi->rect.x && y == xi->rect.y)  
-    find_next_cascade (window, borders, windows, x, y, &x, &y);
+  if (x == xi->rect.x && y == xi->rect.y)
+    find_next_cascade (window, pointer, borders, windows, x, y, &x, &y);
 
  done_check_denied_focus:
   /* If the window is being denied focus and isn't a transient of the
@@ -913,8 +924,12 @@ meta_window_place (MetaWindow        *window,
       gboolean       found_fit;
       MetaWindow    *focus_window;
       MetaRectangle  overlap;
+      MetaFocusInfo *focus_info;
 
-      focus_window = window->display->focus_window;
+      focus_info = meta_display_get_focus_info (window->display, keyboard);
+      g_assert (focus_info != NULL);
+
+      focus_window = focus_info->focus_window;
       g_assert (focus_window != NULL);
 
       /* No need to do anything if the window doesn't overlap at all */

src/core/screen-private.h

@@ -92,7 +92,8 @@ struct _MetaScreen
   MetaStack *stack;
   MetaStackTracker *stack_tracker;
 
-  MetaCursor current_cursor;
+  /* per-pointer cursors */
+  GHashTable *cursors;
 
   Window flash_window;
 
@@ -160,8 +161,10 @@ void          meta_screen_queue_frame_redraws (MetaScreen                 *scree
 void          meta_screen_queue_window_resizes (MetaScreen                 *screen);
 
 void          meta_screen_set_cursor          (MetaScreen                 *screen,
+                                               MetaDevice                 *pointer,
                                                MetaCursor                  cursor);
-void          meta_screen_update_cursor       (MetaScreen                 *screen);
+void          meta_screen_update_cursor       (MetaScreen                 *screen,
+                                               MetaDevice                 *pointer);
 
 void          meta_screen_tab_popup_create       (MetaScreen              *screen,
                                                   MetaTabList              list_type,
@@ -184,9 +187,11 @@ void          meta_screen_tile_preview_update          (MetaScreen    *screen,
 void          meta_screen_tile_preview_hide            (MetaScreen    *screen);
 
 MetaWindow*   meta_screen_get_mouse_window     (MetaScreen                 *screen,
+                                                MetaDevice                 *pointer,
                                                 MetaWindow                 *not_this_one);
 
-const MetaMonitorInfo* meta_screen_get_current_monitor    (MetaScreen    *screen);
+const MetaMonitorInfo* meta_screen_get_current_monitor    (MetaScreen    *screen,
+                                                           MetaDevice    *pointer);
 const MetaMonitorInfo* meta_screen_get_monitor_for_rect   (MetaScreen    *screen,
                                                            MetaRectangle *rect);
 const MetaMonitorInfo* meta_screen_get_monitor_for_window (MetaScreen    *screen,

src/core/screen.c

@@ -37,10 +37,12 @@
 #include "workspace-private.h"
 #include "keybindings-private.h"
 #include "stack.h"
+#include "core.h"
 #include "xprops.h"
 #include <meta/compositor.h>
 #include "mutter-marshal.h"
 #include "mutter-enum-types.h"
+#include "device-pointer.h"
 
 #ifdef HAVE_SOLARIS_XINERAMA
 #include <X11/extensions/xinerama.h>
@@ -710,7 +712,6 @@ meta_screen_new (MetaDisplay *display,
   MetaScreen *screen;
   Window xroot;
   Display *xdisplay;
-  XWindowAttributes attr;
   Window new_wm_sn_owner;
   Window current_wm_sn_owner;
   gboolean replace_current_wm;
@@ -825,15 +826,15 @@ meta_screen_new (MetaDisplay *display,
   /* We need to or with the existing event mask since
    * gtk+ may be interested in other events.
    */
-  XGetWindowAttributes (xdisplay, xroot, &attr);
-  XSelectInput (xdisplay,
-                xroot,
-                SubstructureRedirectMask | SubstructureNotifyMask |
-                ColormapChangeMask | PropertyChangeMask |
-                LeaveWindowMask | EnterWindowMask |
-                KeyPressMask | KeyReleaseMask |
-                FocusChangeMask | StructureNotifyMask |
-                ExposureMask | attr.your_event_mask);
+  meta_core_select_events (xdisplay, xroot,
+                           (SubstructureRedirectMask | SubstructureNotifyMask |
+                            ColormapChangeMask | PropertyChangeMask |
+                            LeaveWindowMask | EnterWindowMask |
+                            KeyPressMask | KeyReleaseMask |
+                            FocusChangeMask | StructureNotifyMask |
+                            ExposureMask),
+                           TRUE);
+
   if (meta_error_trap_pop_with_return (display) != Success)
     {
       meta_warning (_("Screen %d on display \"%s\" already has a window manager\n"),
@@ -855,10 +856,10 @@ meta_screen_new (MetaDisplay *display,
   screen->rect.x = screen->rect.y = 0;
   screen->rect.width = WidthOfScreen (screen->xscreen);
   screen->rect.height = HeightOfScreen (screen->xscreen);
-  screen->current_cursor = -1; /* invalid/unset */
   screen->default_xvisual = DefaultVisualOfScreen (screen->xscreen);
   screen->default_depth = DefaultDepthOfScreen (screen->xscreen);
   screen->flash_window = None;
+  screen->cursors = g_hash_table_new (NULL, NULL);
 
   screen->wm_sn_selection_window = new_wm_sn_owner;
   screen->wm_sn_atom = wm_sn_atom;
@@ -883,8 +884,6 @@ meta_screen_new (MetaDisplay *display,
   screen->last_monitor_index = 0;  
   
   reload_monitor_infos (screen);
-  
-  meta_screen_set_cursor (screen, META_CURSOR_DEFAULT);
 
   /* Handle creating a no_focus_window for this screen */  
   screen->no_focus_window =
@@ -1019,7 +1018,10 @@ meta_screen_free (MetaScreen *screen,
   meta_stack_tracker_free (screen->stack_tracker);
 
   meta_error_trap_push_with_return (screen->display);
-  XSelectInput (screen->display->xdisplay, screen->xroot, 0);
+  meta_core_select_events (screen->display->xdisplay,
+                           screen->xroot, NoEventMask,
+                           FALSE);
+
   if (meta_error_trap_pop_with_return (screen->display) != Success)
     meta_warning (_("Could not release screen %d on display \"%s\"\n"),
                   screen->number, screen->display->name);
@@ -1043,6 +1045,8 @@ meta_screen_free (MetaScreen *screen,
   
   g_free (screen->screen_name);
 
+  g_hash_table_destroy (screen->cursors);
+
   g_object_unref (screen);
 
   XFlush (display->xdisplay);
@@ -1656,31 +1660,33 @@ update_focus_mode (MetaScreen *screen)
 
 void
 meta_screen_set_cursor (MetaScreen *screen,
+                        MetaDevice *pointer,
                         MetaCursor  cursor)
 {
-  Cursor xcursor;
+  MetaCursor old_cursor;
 
-  if (cursor == screen->current_cursor)
+  old_cursor = GPOINTER_TO_UINT (g_hash_table_lookup (screen->cursors, pointer));
+
+  if (cursor == old_cursor)
     return;
 
-  screen->current_cursor = cursor;
-  
-  xcursor = meta_display_create_x_cursor (screen->display, cursor);
-  XDefineCursor (screen->display->xdisplay, screen->xroot, xcursor);
-  XFlush (screen->display->xdisplay);
-  XFreeCursor (screen->display->xdisplay, xcursor);
+  g_hash_table_insert (screen->cursors, pointer,
+                       GUINT_TO_POINTER (cursor));
+
+  meta_screen_update_cursor (screen, pointer);
 }
 
 void
-meta_screen_update_cursor (MetaScreen *screen)
+meta_screen_update_cursor (MetaScreen *screen,
+                           MetaDevice *pointer)
 {
-  Cursor xcursor;
+  MetaCursor cursor;
 
-  xcursor = meta_display_create_x_cursor (screen->display, 
-					  screen->current_cursor);
-  XDefineCursor (screen->display->xdisplay, screen->xroot, xcursor);
+  cursor = GPOINTER_TO_UINT (g_hash_table_lookup (screen->cursors, pointer));
+  meta_device_pointer_set_window_cursor (META_DEVICE_POINTER (pointer),
+                                         screen->xroot,
+                                         cursor);
   XFlush (screen->display->xdisplay);
-  XFreeCursor (screen->display->xdisplay, xcursor);
 }
 
 void
@@ -1934,9 +1940,21 @@ static gboolean
 meta_screen_tile_preview_update_timeout (gpointer data)
 {
   MetaScreen *screen = data;
-  MetaWindow *window = screen->display->grab_window;
+  MetaWindow *window = NULL;
   gboolean composited = screen->display->compositor != NULL;
   gboolean needs_preview = FALSE;
+  MetaGrabInfo *grab_info;
+  MetaDevice *pointer = NULL;
+  GHashTableIter iter;
+
+  /* FIXME: we're just handling the first grab we find */
+  g_hash_table_iter_init (&iter, screen->display->current_grabs);
+
+  if (g_hash_table_iter_next (&iter, NULL, (gpointer *) &grab_info))
+    {
+      window = grab_info->grab_window;
+      pointer = grab_info->grab_pointer;
+    }
 
   screen->tile_preview_timeout_id = 0;
 
@@ -1980,7 +1998,7 @@ meta_screen_tile_preview_update_timeout (gpointer data)
       MetaRectangle tile_rect;
 
       meta_window_get_current_tile_area (window, &tile_rect);
-      meta_tile_preview_show (screen->tile_preview, &tile_rect);
+      meta_tile_preview_show (screen->tile_preview, pointer, &tile_rect);
     }
   else
     meta_tile_preview_hide (screen->tile_preview);
@@ -2025,28 +2043,23 @@ meta_screen_tile_preview_hide (MetaScreen *screen)
 
 MetaWindow*
 meta_screen_get_mouse_window (MetaScreen  *screen,
+                              MetaDevice  *pointer,
                               MetaWindow  *not_this_one)
 {
   MetaWindow *window;
-  Window root_return, child_return;
   int root_x_return, root_y_return;
-  int win_x_return, win_y_return;
-  unsigned int mask_return;
-  
+
   if (not_this_one)
     meta_topic (META_DEBUG_FOCUS,
                 "Focusing mouse window excluding %s\n", not_this_one->desc);
 
   meta_error_trap_push (screen->display);
-  XQueryPointer (screen->display->xdisplay,
-                 screen->xroot,
-                 &root_return,
-                 &child_return,
-                 &root_x_return,
-                 &root_y_return,
-                 &win_x_return,
-                 &win_y_return,
-                 &mask_return);
+  meta_device_pointer_query_position (META_DEVICE_POINTER (pointer),
+                                      screen->xroot,
+                                      NULL, NULL,
+                                      &root_x_return,
+                                      &root_y_return,
+                                      NULL, NULL, NULL);
   meta_error_trap_pop (screen->display);
 
   window = meta_stack_get_default_focus_window_at_point (screen->stack,
@@ -2142,6 +2155,7 @@ meta_screen_get_natural_monitor_list (MetaScreen *screen,
   const MetaMonitorInfo* current;
   const MetaMonitorInfo* tmp;
   GQueue* monitor_queue;
+  MetaDevice *pointer;
   int* visited;
   int cur = 0;
   int i;
@@ -2149,6 +2163,9 @@ meta_screen_get_natural_monitor_list (MetaScreen *screen,
   *n_monitors = screen->n_monitor_infos;
   *monitors_list = g_new (int, screen->n_monitor_infos);
 
+  pointer = meta_device_map_lookup (screen->display->device_map,
+                                    META_CORE_POINTER_ID);
+
   /* we calculate a natural ordering by which to choose monitors for
    * window placement.  We start at the current monitor, and perform
    * a breadth-first search of the monitors starting from that
@@ -2163,7 +2180,7 @@ meta_screen_get_natural_monitor_list (MetaScreen *screen,
       visited[i] = FALSE;
     }
 
-  current = meta_screen_get_current_monitor (screen);
+  current = meta_screen_get_current_monitor (screen, pointer);
   monitor_queue = g_queue_new ();
   g_queue_push_tail (monitor_queue, (gpointer) current);
   visited[current->number] = TRUE;
@@ -2230,7 +2247,8 @@ meta_screen_get_natural_monitor_list (MetaScreen *screen,
 }
 
 const MetaMonitorInfo*
-meta_screen_get_current_monitor (MetaScreen *screen)
+meta_screen_get_current_monitor (MetaScreen *screen,
+                                 MetaDevice *pointer)
 {
   if (screen->n_monitor_infos == 1)
     return &screen->monitor_infos[0];
@@ -2240,24 +2258,18 @@ meta_screen_get_current_monitor (MetaScreen *screen)
   
   if (screen->display->monitor_cache_invalidated)
     {
-      Window root_return, child_return;
-      int win_x_return, win_y_return;
-      unsigned int mask_return;
       int i;
       MetaRectangle pointer_position;
       
       screen->display->monitor_cache_invalidated = FALSE;
       
       pointer_position.width = pointer_position.height = 1;
-      XQueryPointer (screen->display->xdisplay,
-                     screen->xroot,
-                     &root_return,
-                     &child_return,
-                     &pointer_position.x,
-                     &pointer_position.y,
-                     &win_x_return,
-                     &win_y_return,
-                     &mask_return);
+      meta_device_pointer_query_position (META_DEVICE_POINTER (pointer),
+                                          screen->xroot,
+                                          NULL, NULL,
+                                          &pointer_position.x,
+                                          &pointer_position.y,
+                                          NULL, NULL, NULL);
 
       screen->last_monitor_index = 0;
       for (i = 0; i < screen->n_monitor_infos; i++)
@@ -3114,17 +3126,22 @@ static gboolean startup_sequence_timeout (void *data);
 static void
 update_startup_feedback (MetaScreen *screen)
 {
+  MetaDevice *pointer;
+
+  pointer = meta_device_map_lookup (screen->display->device_map,
+                                    META_CORE_POINTER_ID);
+
   if (screen->startup_sequences != NULL)
     {
       meta_topic (META_DEBUG_STARTUP,
                   "Setting busy cursor\n");
-      meta_screen_set_cursor (screen, META_CURSOR_BUSY);
+      meta_screen_set_cursor (screen, pointer, META_CURSOR_BUSY);
     }
   else
     {
       meta_topic (META_DEBUG_STARTUP,
                   "Setting default cursor\n");
-      meta_screen_set_cursor (screen, META_CURSOR_DEFAULT);
+      meta_screen_set_cursor (screen, pointer, META_CURSOR_DEFAULT);
     }
 }
 

src/core/stack.c

@@ -211,13 +211,23 @@ meta_stack_thaw (MetaStack *stack)
   stack_sync_to_server (stack);
 }
 
+typedef struct _FocusedForeachData FocusedForeachData;
+
+struct _FocusedForeachData
+{
+  MetaWindow *window;
+  gboolean focused_transient;
+};
+
 static gboolean
 is_focused_foreach (MetaWindow *window,
                     void       *data)
 {
-  if (window == window->display->expected_focus_window)
+  FocusedForeachData *focused_data = data;
+
+  if (window == focused_data->window)
     {
-      *((gboolean*) data) = TRUE;
+      focused_data->focused_transient = TRUE;
       return FALSE;
     }
   return TRUE;
@@ -239,7 +249,9 @@ static MetaStackLayer
 get_standalone_layer (MetaWindow *window)
 {
   MetaStackLayer layer;
-  gboolean focused_transient = FALSE;
+  MetaFocusInfo *focus_info;
+  MetaDevice *keyboard;
+  FocusedForeachData focused_data = { NULL, FALSE };
 
   switch (window->type)
     {
@@ -263,20 +275,33 @@ get_standalone_layer (MetaWindow *window)
     case META_WINDOW_OVERRIDE_OTHER:
       layer = META_LAYER_OVERRIDE_REDIRECT;
       break;
-    default:       
-      meta_window_foreach_transient (window,
-                                     is_focused_foreach,
-                                     &focused_transient);
+    default:
+      /* FIXME: How about other keyboards? should
+       * we allow fullscreen for non-VCP/K anyway?
+       */
+      keyboard = meta_device_map_lookup (window->display->device_map,
+                                         META_CORE_KEYBOARD_ID);
+
+      focus_info = meta_display_get_focus_info (window->display, keyboard);
+
+      if (focus_info)
+        {
+          focused_data.window = focus_info->expected_focus_window;
+          meta_window_foreach_transient (window,
+                                         is_focused_foreach,
+                                         &focused_data);
+        }
 
       if (window->wm_state_below)
         layer = META_LAYER_BOTTOM;
       else if (window->fullscreen &&
-               (focused_transient ||
-                window == window->display->expected_focus_window ||
-                window->display->expected_focus_window == NULL ||
-                (window->display->expected_focus_window != NULL &&
+               (focused_data.focused_transient ||
+                !focus_info ||
+                window == focus_info->expected_focus_window ||
+                focus_info->expected_focus_window == NULL ||
+                (focus_info->expected_focus_window != NULL &&
                  windows_on_different_monitor (window,
-                                               window->display->expected_focus_window))))
+                                               focus_info->expected_focus_window))))
         layer = META_LAYER_FULLSCREEN;
       else if (window->wm_state_above)
         layer = META_LAYER_TOP;

src/core/util.c

@@ -81,6 +81,7 @@ meta_print_backtrace (void)
 static gint verbose_topics = 0;
 static gboolean is_debugging = FALSE;
 static gboolean replace_current = FALSE;
+static gboolean use_core_devices = FALSE;
 static int no_prefix = 0;
 
 #ifdef WITH_VERBOSE_MODE
@@ -209,6 +210,18 @@ meta_set_debugging (gboolean setting)
   is_debugging = setting;
 }
 
+gboolean
+meta_get_use_core_devices (void)
+{
+  return use_core_devices;
+}
+
+void
+meta_set_use_core_devices (gboolean setting)
+{
+  use_core_devices = setting;
+}
+
 gboolean
 meta_get_replace_current_wm (void)
 {

src/core/window-private.h

@@ -107,6 +107,10 @@ struct _MetaWindow
   Window xgroup_leader;
   Window xclient_leader;
 
+  /* window menu if any, and the pointer that popped it up */
+  MetaWindowMenu *menu;
+  MetaDevice *menu_device;
+
   /* Initial workspace property */
   int initial_workspace;  
   
@@ -322,6 +326,15 @@ struct _MetaWindow
   /* if TRUE, window is attached to its parent */
   guint attached : 1;
 
+  /* if TRUE, window didn't yet get the FocusIn for window->focus_keyboard */
+  guint expecting_focus_in : 1;
+
+  /* if TRUE, tiling mode is held regardless of newer touch updates */
+  guint touch_hold_tiling_mode : 1;
+
+  /* Keyboard currently owning the window focus, or NULL */
+  MetaDevice *focus_keyboard;
+
   /* if non-NULL, the bounds of the window frame */
   cairo_region_t *frame_bounds;
 
@@ -399,6 +412,18 @@ struct _MetaWindow
 
   /* Focused window that is (directly or indirectly) attached to this one */
   MetaWindow *attached_focus_window;
+
+  /* Current grab op for this window, or NULL */
+  MetaGrabInfo *cur_grab;
+
+  /* Focus info if the window is focused, or NULL */
+  MetaFocusInfo *cur_focus;
+
+  GHashTable *cur_touches;
+  gdouble initial_touch_area_width;
+  gdouble initial_touch_area_height;
+  gdouble cur_touch_area_width;
+  gdouble cur_touch_area_height;
 };
 
 struct _MetaWindowClass
@@ -570,6 +595,7 @@ void     meta_window_set_current_workspace_hint (MetaWindow *window);
 unsigned long meta_window_get_net_wm_desktop (MetaWindow *window);
 
 void meta_window_show_menu (MetaWindow *window,
+                            MetaDevice *device,
                             int         root_x,
                             int         root_y,
                             int         button,
@@ -619,13 +645,16 @@ void meta_window_free_delete_dialog (MetaWindow *window);
 
 
 void meta_window_begin_grab_op (MetaWindow *window,
+                                MetaDevice *device,
                                 MetaGrabOp  op,
                                 gboolean    frame_action,
                                 guint32     timestamp);
 
 void meta_window_update_keyboard_resize (MetaWindow *window,
+                                         MetaDevice *device,
                                          gboolean    update_cursor);
-void meta_window_update_keyboard_move   (MetaWindow *window);
+void meta_window_update_keyboard_move   (MetaWindow *window,
+                                         MetaDevice *device);
 
 void meta_window_update_layer (MetaWindow *window);
 
@@ -647,8 +676,20 @@ void meta_window_update_for_monitors_changed (MetaWindow *window);
 void meta_window_update_on_all_workspaces (MetaWindow *window);
 
 void meta_window_propagate_focus_appearance (MetaWindow *window,
+                                             MetaDevice *keyboard,
                                              gboolean    focused);
 
 gboolean meta_window_should_attach_to_parent (MetaWindow *window);
 
+void         meta_window_set_client_pointer (MetaWindow *window,
+                                             MetaDevice *pointer);
+MetaDevice * meta_window_get_client_pointer (MetaWindow *window);
+
+MetaDevice * meta_window_guess_grab_pointer (MetaWindow *window);
+
+gboolean     meta_window_update_touch (MetaWindow *window,
+                                       XEvent     *event);
+void         meta_window_end_touch    (MetaWindow *window,
+                                       XEvent     *event);
+
 #endif

src/core/window-props.c

@@ -1507,7 +1507,9 @@ reload_transient_for (MetaWindow    *window,
     return;
 
   if (meta_window_appears_focused (window) && window->xtransient_for != None)
-    meta_window_propagate_focus_appearance (window, FALSE);
+    meta_window_propagate_focus_appearance (window,
+                                            window->focus_keyboard,
+                                            FALSE);
 
   old_transient_for = window->xtransient_for;
   window->xtransient_for = transient_for;
@@ -1560,7 +1562,9 @@ reload_transient_for (MetaWindow    *window,
     meta_window_queue (window, META_QUEUE_MOVE_RESIZE);
 
   if (meta_window_appears_focused (window) && window->xtransient_for != None)
-    meta_window_propagate_focus_appearance (window, TRUE);
+    meta_window_propagate_focus_appearance (window,
+                                            window->focus_keyboard,
+                                            TRUE);
 }
 
 static void

src/core/workspace-private.h

@@ -85,6 +85,7 @@ GList* meta_workspace_get_onmonitor_region      (MetaWorkspace *workspace,
                                                  int            which_monitor);
 
 void meta_workspace_focus_default_window (MetaWorkspace *workspace,
+                                          MetaDevice    *pointer,
                                           MetaWindow    *not_this_one,
                                           guint32        timestamp);
 

src/core/workspace.c

@@ -538,7 +538,9 @@ meta_workspace_activate_with_focus (MetaWorkspace *workspace,
   MetaWorkspaceLayout layout1, layout2;
   gint num_workspaces, current_space, new_space;
   MetaMotionDirection direction;
-  
+  MetaGrabInfo *grab_info;
+  GHashTableIter iter;
+
   meta_verbose ("Activating workspace %d\n",
                 meta_workspace_index (workspace));
   
@@ -547,7 +549,7 @@ meta_workspace_activate_with_focus (MetaWorkspace *workspace,
 
   /* Free any cached pointers to the workspaces's edges from
    * a current resize or move operation */
-  meta_display_cleanup_edges (workspace->screen->display);
+  meta_display_cleanup_edges (workspace->screen->display, workspace->screen);
 
   if (workspace->screen->active_workspace)
     workspace_switch_sound (workspace->screen->active_workspace, workspace);
@@ -570,10 +572,22 @@ meta_workspace_activate_with_focus (MetaWorkspace *workspace,
     return;
 
   move_window = NULL;
-  if (workspace->screen->display->grab_op == META_GRAB_OP_MOVING ||
-      workspace->screen->display->grab_op == META_GRAB_OP_KEYBOARD_MOVING)
-    move_window = workspace->screen->display->grab_window;
-      
+
+  /* FIXME: not quite multidevice friendly, but the whole
+   * "move window to another workspace" isn't.
+   */
+  g_hash_table_iter_init (&iter, workspace->screen->display->current_grabs);
+
+  while (g_hash_table_iter_next (&iter, NULL, (gpointer *) &grab_info))
+    {
+      if (grab_info->grab_op == META_GRAB_OP_MOVING ||
+          grab_info->grab_op == META_GRAB_OP_KEYBOARD_MOVING)
+        {
+          move_window = grab_info->grab_window;
+          break;
+        }
+    }
+
   if (move_window != NULL)
     {
       if (move_window->on_all_workspaces)
@@ -673,8 +687,13 @@ meta_workspace_activate_with_focus (MetaWorkspace *workspace,
     }
   else
     {
+      MetaDevice *pointer;
+
+      pointer = meta_device_map_lookup (screen->display->device_map,
+                                        META_CORE_POINTER_ID);
       meta_topic (META_DEBUG_FOCUS, "Focusing default window on new workspace\n");
-      meta_workspace_focus_default_window (workspace, NULL, timestamp);
+      meta_workspace_focus_default_window (workspace, pointer,
+                                           NULL, timestamp);
     }
 
    /* Emit switched signal from screen.c */
@@ -774,7 +793,7 @@ meta_workspace_invalidate_work_area (MetaWorkspace *workspace)
   /* If we are in the middle of a resize or move operation, we
    * might have cached pointers to the workspace's edges */
   if (workspace == workspace->screen->active_workspace)
-    meta_display_cleanup_edges (workspace->screen->display);
+    meta_display_cleanup_edges (workspace->screen->display, workspace->screen);
 
   g_free (workspace->work_area_monitor);
   workspace->work_area_monitor = NULL;
@@ -1191,6 +1210,7 @@ meta_workspace_get_name (MetaWorkspace *workspace)
 
 void
 meta_workspace_focus_default_window (MetaWorkspace *workspace,
+                                     MetaDevice    *pointer,
                                      MetaWindow    *not_this_one,
                                      guint32        timestamp)
 {
@@ -1207,7 +1227,8 @@ meta_workspace_focus_default_window (MetaWorkspace *workspace,
   else
     {
       MetaWindow * window;
-      window = meta_screen_get_mouse_window (workspace->screen, not_this_one);
+      window = meta_screen_get_mouse_window (workspace->screen,
+                                             pointer, not_this_one);
       if (window &&
           window->type != META_WINDOW_DOCK &&
           window->type != META_WINDOW_DESKTOP)

src/meta/device-map.h

@@ -0,0 +1,46 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/*
+ * Copyright (C) 2011 Carlos Garnacho
+ *
+ * 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_DEVICE_MAP_H
+#define META_DEVICE_MAP_H
+
+#include <glib-object.h>
+#include <meta/types.h>
+#include <meta/device.h>
+
+#define META_TYPE_DEVICE_MAP            (meta_device_map_get_type ())
+#define META_DEVICE_MAP(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_DEVICE_MAP, MetaDeviceMap))
+#define META_DEVICE_MAP_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  META_TYPE_DEVICE_MAP, MetaDeviceMapClass))
+#define META_IS_DEVICE_MAP(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_DEVICE_MAP))
+#define META_IS_DEVICE_MAP_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  META_TYPE_DEVICE_MAP))
+#define META_DEVICE_MAP_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  META_TYPE_DEVICE_MAP, MetaDeviceMapClass))
+
+typedef struct _MetaDeviceMapClass   MetaDeviceMapClass;
+
+GType           meta_device_map_get_type (void) G_GNUC_CONST;
+
+MetaDevice *    meta_device_map_lookup      (MetaDeviceMap *device_map,
+					     gint           device_id);
+
+MetaDisplay *   meta_device_map_get_display (MetaDeviceMap *device_map);
+GList *         meta_device_map_list_devices (MetaDeviceMap *device_map);
+
+#endif

src/meta/device.h

@@ -0,0 +1,44 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/*
+ * Copyright (C) 2011 Carlos Garnacho
+ *
+ * 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_DEVICE_H
+#define META_DEVICE_H
+
+#include <glib-object.h>
+#include <meta/types.h>
+
+#define META_TYPE_DEVICE            (meta_device_get_type ())
+#define META_DEVICE(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_DEVICE, MetaDevice))
+#define META_DEVICE_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  META_TYPE_DEVICE, MetaDeviceClass))
+#define META_IS_DEVICE(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_DEVICE))
+#define META_IS_DEVICE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  META_TYPE_DEVICE))
+#define META_DEVICE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  META_TYPE_DEVICE, MetaDeviceClass))
+
+typedef struct _MetaDeviceClass   MetaDeviceClass;
+
+GType        meta_device_get_type     (void) G_GNUC_CONST;
+
+int          meta_device_get_id       (MetaDevice  *device);
+MetaDisplay *meta_device_get_display  (MetaDevice *device);
+
+MetaDevice * meta_device_get_paired_device (MetaDevice *device);
+
+#endif

src/meta/display.h

@@ -28,6 +28,7 @@
 #include <meta/types.h>
 #include <meta/prefs.h>
 #include <meta/common.h>
+#include <meta/device-map.h>
 
 typedef enum
 {
@@ -74,6 +75,9 @@ gboolean meta_display_has_shape (MetaDisplay *display);
 
 MetaScreen *meta_display_screen_for_root (MetaDisplay *display,
                                           Window       xroot);
+
+MetaWindow *meta_display_get_keyboard_focus_window (MetaDisplay *display,
+                                                    MetaDevice  *keyboard);
 MetaWindow *meta_display_get_focus_window (MetaDisplay *display);
 
 gboolean  meta_display_xwindow_is_a_no_focus_window (MetaDisplay *display,
@@ -108,9 +112,30 @@ MetaWindow* meta_display_get_tab_current (MetaDisplay   *display,
                                           MetaScreen    *screen,
                                           MetaWorkspace *workspace);
 
+GList* meta_display_get_device_tab_list (MetaDisplay   *display,
+                                         MetaTabList    type,
+                                         MetaScreen    *screen,
+                                         MetaWorkspace *workspace,
+                                         MetaDevice    *device);
+
+MetaWindow* meta_display_get_device_tab_next (MetaDisplay   *display,
+                                              MetaTabList    type,
+                                              MetaScreen    *screen,
+                                              MetaWorkspace *workspace,
+                                              MetaWindow    *window,
+                                              MetaDevice    *device,
+                                              gboolean       backward);
+
+MetaWindow* meta_display_get_device_tab_current (MetaDisplay   *display,
+                                                 MetaTabList    type,
+                                                 MetaScreen    *screen,
+                                                 MetaWorkspace *workspace,
+                                                 MetaDevice    *device);
+
 gboolean meta_display_begin_grab_op (MetaDisplay *display,
                                      MetaScreen  *screen,
                                      MetaWindow  *window,
+                                     MetaDevice  *device,
                                      MetaGrabOp   op,
                                      gboolean     pointer_already_grabbed,
                                      gboolean     frame_action,
@@ -120,14 +145,28 @@ gboolean meta_display_begin_grab_op (MetaDisplay *display,
                                      int          root_x,
                                      int          root_y);
 void     meta_display_end_grab_op   (MetaDisplay *display,
+                                     MetaDevice  *device,
                                      guint32      timestamp);
 
 MetaGrabOp meta_display_get_grab_op (MetaDisplay *display);
 
+MetaGrabOp meta_display_get_device_grab_op (MetaDisplay *display,
+                                            MetaDevice  *device);
+
 MetaKeyBindingAction meta_display_get_keybinding_action (MetaDisplay  *display,
                                                          unsigned int  keycode,
                                                          unsigned long mask);
 
+void meta_display_set_keyboard_focus   (MetaDisplay        *display,
+                                        MetaWindow         *window,
+                                        MetaDevice         *keyboard,
+                                        gboolean            focus_frame,
+                                        guint32             timestamp);
+void meta_display_unset_keyboard_focus (MetaDisplay        *display,
+                                        MetaScreen         *screen,
+                                        MetaDevice         *keyboard,
+                                        guint32             timestamp);
+
 /* meta_display_set_input_focus_window is like XSetInputFocus, except
  * that (a) it can't detect timestamps later than the current time,
  * since Mutter isn't part of the XServer, and thus gives erroneous
@@ -162,4 +201,6 @@ void meta_display_unmanage_screen (MetaDisplay *display,
                                    MetaScreen  *screen,
                                    guint32      timestamp);
 
+MetaDeviceMap * meta_display_get_device_map (MetaDisplay *display);
+
 #endif

src/meta/keybindings.h

@@ -67,6 +67,10 @@ void meta_keybindings_switch_window (MetaDisplay    *display,
 				     MetaKeyBinding *binding);
 
 
-void     meta_screen_ungrab_all_keys (MetaScreen *screen, guint32 timestamp);
-gboolean meta_screen_grab_all_keys (MetaScreen *screen, guint32 timestamp);
+void     meta_screen_ungrab_all_keys (MetaScreen *screen,
+                                      MetaDevice *device,
+                                      guint32     timestamp);
+gboolean meta_screen_grab_all_keys   (MetaScreen *screen,
+                                      MetaDevice *device,
+                                      guint32     timestamp);
 #endif

src/meta/types.h

@@ -32,6 +32,8 @@ typedef struct _MetaFrame       MetaFrame;
 typedef struct _MetaScreen      MetaScreen;
 typedef struct _MetaWindow      MetaWindow;
 typedef struct _MetaWorkspace   MetaWorkspace;
+typedef struct _MetaDevice      MetaDevice;
+typedef struct _MetaDeviceMap   MetaDeviceMap;
 /**
  * MetaGroup: (skip)
  *

src/meta/util.h

@@ -38,6 +38,9 @@ gboolean meta_is_syncing (void);
 void     meta_set_syncing (gboolean setting);
 void     meta_set_replace_current_wm (gboolean setting);
 
+gboolean meta_get_use_core_devices (void);
+void     meta_set_use_core_devices (gboolean setting);
+
 void meta_debug_spew_real (const char *format,
                            ...) G_GNUC_PRINTF (1, 2);
 void meta_verbose_real    (const char *format,

src/ui/frames.c

@@ -52,6 +52,7 @@ static void meta_frames_unmap         (GtkWidget       *widget);
 
 static void meta_frames_update_prelit_control (MetaFrames      *frames,
                                                MetaUIFrame     *frame,
+                                               GdkDevice       *device,
                                                MetaFrameControl control);
 static gboolean meta_frames_button_press_event    (GtkWidget           *widget,
                                                    GdkEventButton      *event);
@@ -734,10 +735,18 @@ meta_frames_unmanage_window (MetaFrames *frames,
        */
       invalidate_all_caches (frames);
       
+#if 0
+      /* This function is only called when destroying the frame
+       * in core/frame.c, ideally this should be done for every
+       * device with a cursor on the frame, but in practical
+       * effects it doesn't matter.
+       */
+
       /* restore the cursor */
       meta_core_set_screen_cursor (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
                                    frame->xwindow,
                                    META_CURSOR_DEFAULT);
+#endif
 
       gdk_window_set_user_data (frame->window, NULL);
 
@@ -1293,10 +1302,12 @@ meta_frame_titlebar_event (MetaUIFrame    *frame,
                            int            action)
 {
   MetaFrameFlags flags;
+  GdkDevice *pointer;
   Display *display;
 
   display = GDK_DISPLAY_XDISPLAY (gdk_display_get_default ());
-  
+  pointer = gdk_event_get_device ((GdkEvent *) event);
+
   switch (action)
     {
     case META_ACTION_TITLEBAR_TOGGLE_SHADE:
@@ -1378,12 +1389,14 @@ meta_frame_titlebar_event (MetaUIFrame    *frame,
     case META_ACTION_TITLEBAR_LOWER:
       meta_core_user_lower_and_unfocus (display,
                                         frame->xwindow,
+                                        gdk_x11_device_get_id (pointer),
                                         event->time);
       break;
 
     case META_ACTION_TITLEBAR_MENU:
       meta_core_show_window_menu (display,
                                   frame->xwindow,
+                                  gdk_x11_device_get_id (pointer),
                                   event->x_root,
                                   event->y_root,
                                   event->button,
@@ -1432,7 +1445,9 @@ meta_frames_button_press_event (GtkWidget      *widget,
   MetaFrames *frames;
   MetaFrameControl control;
   Display *display;
-  
+  GdkDevice *device;
+  int device_id;
+
   frames = META_FRAMES (widget);
   display = GDK_DISPLAY_XDISPLAY (gdk_display_get_default ());
 
@@ -1465,7 +1480,10 @@ meta_frames_button_press_event (GtkWidget      *widget,
   /* don't do the rest of this if on client area */
   if (control == META_FRAME_CONTROL_CLIENT_AREA)
     return FALSE; /* not on the frame, just passed through from client */
-  
+
+  device = gdk_event_get_device ((GdkEvent *) event);
+  device_id = gdk_x11_device_get_id (device);
+
   /* We want to shade even if we have a GrabOp, since we'll have a move grab
    * if we double click the titlebar.
    */
@@ -1473,13 +1491,13 @@ meta_frames_button_press_event (GtkWidget      *widget,
       event->button == 1 &&
       event->type == GDK_2BUTTON_PRESS)
     {
-      meta_core_end_grab_op (display, event->time);
+      meta_core_end_grab_op (display, device_id, event->time);
       return meta_frame_double_click_event (frame, event);
     }
 
-  if (meta_core_get_grab_op (display) !=
+  if (meta_core_frame_has_grab (display, frame->xwindow, NULL, NULL) !=
       META_GRAB_OP_NONE)
-    return FALSE; /* already up to something */  
+    return FALSE; /* already up to something */
 
   if (event->button == 1 &&
       (control == META_FRAME_CONTROL_MAXIMIZE ||
@@ -1538,6 +1556,7 @@ meta_frames_button_press_event (GtkWidget      *widget,
 
       meta_core_begin_grab_op (display,
                                frame->xwindow,
+                               device_id,
                                op,
                                TRUE,
                                TRUE,
@@ -1570,6 +1589,7 @@ meta_frames_button_press_event (GtkWidget      *widget,
 
           meta_core_show_window_menu (display,
                                       frame->xwindow,
+                                      device_id,
                                       rect->x + dx,
                                       rect->y + rect->height + dy,
                                       event->button,
@@ -1623,6 +1643,7 @@ meta_frames_button_press_event (GtkWidget      *widget,
 
       meta_core_begin_grab_op (display,
                                frame->xwindow,
+                               device_id,
                                op,
                                TRUE,
                                TRUE,
@@ -1645,6 +1666,7 @@ meta_frames_button_press_event (GtkWidget      *widget,
         {          
           meta_core_begin_grab_op (display,
                                    frame->xwindow,
+                                   device_id,
                                    META_GRAB_OP_MOVING,
                                    TRUE,
                                    TRUE,
@@ -1668,28 +1690,28 @@ meta_frames_button_press_event (GtkWidget      *widget,
 }
 
 void
-meta_frames_notify_menu_hide (MetaFrames *frames)
+meta_frames_notify_menu_hide (MetaFrames *frames,
+                              Window      client_xwindow)
 {
   Display *display = GDK_DISPLAY_XDISPLAY (gdk_display_get_default ());
-  if (meta_core_get_grab_op (display) ==
+  Window frame_xwindow;
+  int device_id;
+
+  frame_xwindow = meta_core_get_frame (display, client_xwindow);
+
+  if (frame_xwindow != None &&
+      meta_core_frame_has_grab (display, frame_xwindow, &device_id, NULL) ==
       META_GRAB_OP_CLICKING_MENU)
     {
-      Window grab_frame;
+      MetaUIFrame *frame;
 
-      grab_frame = meta_core_get_grab_frame (display);
+      frame = meta_frames_lookup_window (frames, frame_xwindow);
 
-      if (grab_frame != None)
+      if (frame)
         {
-          MetaUIFrame *frame;
-
-          frame = meta_frames_lookup_window (frames, grab_frame);
-
-          if (frame)
-            {
-              redraw_control (frames, frame,
-                              META_FRAME_CONTROL_MENU);
-              meta_core_end_grab_op (display, CurrentTime);
-            }
+          redraw_control (frames, frame,
+                          META_FRAME_CONTROL_MENU);
+          meta_core_end_grab_op (display, device_id, CurrentTime);
         }
     }
 }
@@ -1702,7 +1724,10 @@ meta_frames_button_release_event    (GtkWidget           *widget,
   MetaFrames *frames;
   MetaGrabOp op;
   Display *display;
-  
+  int grab_button;
+  GdkDevice *device;
+  int device_id, grab_device_id;
+
   frames = META_FRAMES (widget);
   display = GDK_DISPLAY_XDISPLAY (gdk_display_get_default ());
   
@@ -1712,17 +1737,21 @@ meta_frames_button_release_event    (GtkWidget           *widget,
 
   clear_tip (frames);
 
-  op = meta_core_get_grab_op (display);
+  op = meta_core_frame_has_grab (display, frame->xwindow,
+                                 &grab_device_id, &grab_button);
 
-  if (op == META_GRAB_OP_NONE)
+  device = gdk_event_get_device ((GdkEvent *) event);
+  device_id = gdk_x11_device_get_id (device);
+
+  if (op == META_GRAB_OP_NONE ||
+      grab_device_id != device_id)
     return FALSE;
 
   /* We only handle the releases we handled the presses for (things
    * involving frame controls). Window ops that don't require a
    * frame are handled in the Xlib part of the code, display.c/window.c
    */
-  if (frame->xwindow == meta_core_get_grab_frame (display) &&
-      ((int) event->button) == meta_core_get_grab_button (display))
+  if (((int) event->button) == grab_button)
     {
       MetaFrameControl control;
 
@@ -1733,8 +1762,8 @@ meta_frames_button_release_event    (GtkWidget           *widget,
         case META_GRAB_OP_CLICKING_MINIMIZE:
           if (control == META_FRAME_CONTROL_MINIMIZE)
             meta_core_minimize (display, frame->xwindow);
-          
-          meta_core_end_grab_op (display, event->time);
+
+          meta_core_end_grab_op (display, device_id, event->time);
           break;
 
         case META_GRAB_OP_CLICKING_MAXIMIZE:
@@ -1746,67 +1775,67 @@ meta_frames_button_release_event    (GtkWidget           *widget,
                             event->time);      
             meta_core_maximize (display, frame->xwindow);
           }
-          meta_core_end_grab_op (display, event->time);
+          meta_core_end_grab_op (display, device_id, event->time);
           break;
 
         case META_GRAB_OP_CLICKING_UNMAXIMIZE:
           if (control == META_FRAME_CONTROL_UNMAXIMIZE)
             meta_core_unmaximize (display, frame->xwindow);
-          
-          meta_core_end_grab_op (display, event->time);
+
+          meta_core_end_grab_op (display, device_id, event->time);
           break;
           
         case META_GRAB_OP_CLICKING_DELETE:
           if (control == META_FRAME_CONTROL_DELETE)
             meta_core_delete (display, frame->xwindow, event->time);
-          
-          meta_core_end_grab_op (display, event->time);
+
+          meta_core_end_grab_op (display, device_id, event->time);
           break;
           
         case META_GRAB_OP_CLICKING_MENU:
-          meta_core_end_grab_op (display, event->time);
+          meta_core_end_grab_op (display, device_id, event->time);
           break;
 
         case META_GRAB_OP_CLICKING_SHADE:
           if (control == META_FRAME_CONTROL_SHADE)
             meta_core_shade (display, frame->xwindow, event->time);
-          
-          meta_core_end_grab_op (display, event->time);
+
+          meta_core_end_grab_op (display, device_id, event->time);
           break;
  
         case META_GRAB_OP_CLICKING_UNSHADE:
           if (control == META_FRAME_CONTROL_UNSHADE)
             meta_core_unshade (display, frame->xwindow, event->time);
 
-          meta_core_end_grab_op (display, event->time);
+          meta_core_end_grab_op (display, device_id, event->time);
           break;
 
         case META_GRAB_OP_CLICKING_ABOVE:
           if (control == META_FRAME_CONTROL_ABOVE)
             meta_core_make_above (display, frame->xwindow);
-          
-          meta_core_end_grab_op (display, event->time);
+
+          meta_core_end_grab_op (display, device_id, event->time);
           break;
  
         case META_GRAB_OP_CLICKING_UNABOVE:
           if (control == META_FRAME_CONTROL_UNABOVE)
             meta_core_unmake_above (display, frame->xwindow);
 
-          meta_core_end_grab_op (display, event->time);
+          meta_core_end_grab_op (display, device_id, event->time);
           break;
 
         case META_GRAB_OP_CLICKING_STICK:
           if (control == META_FRAME_CONTROL_STICK)
             meta_core_stick (display, frame->xwindow);
 
-          meta_core_end_grab_op (display, event->time);
+          meta_core_end_grab_op (display, device_id, event->time);
           break;
  
         case META_GRAB_OP_CLICKING_UNSTICK:
           if (control == META_FRAME_CONTROL_UNSTICK)
             meta_core_unstick (display, frame->xwindow);
 
-          meta_core_end_grab_op (display, event->time);
+          meta_core_end_grab_op (display, device_id, event->time);
           break;
           
         default:
@@ -1818,7 +1847,9 @@ meta_frames_button_release_event    (GtkWidget           *widget,
        * prelit so to let the user know that it can now be pressed.
        * :)
        */
-      meta_frames_update_prelit_control (frames, frame, control);
+      meta_frames_update_prelit_control (frames, frame, 
+                                         gdk_event_get_device ((GdkEvent *) event),
+                                         control);
     }
   
   return TRUE;
@@ -1827,12 +1858,12 @@ meta_frames_button_release_event    (GtkWidget           *widget,
 static void
 meta_frames_update_prelit_control (MetaFrames      *frames,
                                    MetaUIFrame     *frame,
+                                   GdkDevice       *device,
                                    MetaFrameControl control)
 {
   MetaFrameControl old_control;
   MetaCursor cursor;
 
-
   meta_verbose ("Updating prelit control from %u to %u\n",
                 frame->prelit_control, control);
   
@@ -1897,6 +1928,7 @@ meta_frames_update_prelit_control (MetaFrames      *frames,
   /* set/unset the prelight cursor */
   meta_core_set_screen_cursor (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
                                frame->xwindow,
+                               gdk_x11_device_get_id (device),
                                cursor);  
 
   switch (control)
@@ -1952,8 +1984,8 @@ meta_frames_motion_notify_event     (GtkWidget           *widget,
 
   frames->last_motion_frame = frame;
 
-  grab_op = meta_core_get_grab_op (display);
-  
+  grab_op = meta_core_frame_has_grab (display, frame->xwindow, NULL, NULL);
+
   switch (grab_op)
     {
     case META_GRAB_OP_CLICKING_MENU:
@@ -1969,10 +2001,9 @@ meta_frames_motion_notify_event     (GtkWidget           *widget,
     case META_GRAB_OP_CLICKING_UNSTICK:
       {
         MetaFrameControl control;
-        int x, y;
-        
-        gdk_window_get_device_position (frame->window, event->device,
-                                        &x, &y, NULL);
+        gdouble x, y;
+
+        gdk_event_get_coords ((GdkEvent *) event, &x, &y);
 
         /* Control is set to none unless it matches
          * the current grab
@@ -2003,7 +2034,9 @@ meta_frames_motion_notify_event     (GtkWidget           *widget,
            control = META_FRAME_CONTROL_NONE;
         
         /* Update prelit control and cursor */
-        meta_frames_update_prelit_control (frames, frame, control);
+        meta_frames_update_prelit_control (frames, frame, 
+                                           gdk_event_get_device ((GdkEvent *) event),
+                                           control);
 
         /* No tooltip while in the process of clicking */
       }
@@ -2011,15 +2044,15 @@ meta_frames_motion_notify_event     (GtkWidget           *widget,
     case META_GRAB_OP_NONE:
       {
         MetaFrameControl control;
-        int x, y;
-        
-        gdk_window_get_device_position (frame->window, event->device,
-                                        &x, &y, NULL);
+        gdouble x, y;
 
+        gdk_event_get_coords ((GdkEvent *) event, &x, &y);
         control = get_control (frames, frame, x, y);
 
         /* Update prelit control and cursor */
-        meta_frames_update_prelit_control (frames, frame, control);
+        meta_frames_update_prelit_control (frames, frame, 
+                                           gdk_event_get_device ((GdkEvent *) event),
+                                           control);
         
         queue_tip (frames);
       }
@@ -2368,7 +2401,6 @@ meta_frames_paint (MetaFrames   *frames,
   GdkPixbuf *icon;
   int w, h;
   MetaButtonState button_states[META_BUTTON_TYPE_LAST];
-  Window grab_frame;
   int i;
   MetaButtonLayout button_layout;
   MetaGrabOp grab_op;
@@ -2380,11 +2412,8 @@ meta_frames_paint (MetaFrames   *frames,
   for (i = 0; i < META_BUTTON_TYPE_LAST; i++)
     button_states[i] = META_BUTTON_STATE_NORMAL;
 
-  grab_frame = meta_core_get_grab_frame (display);
-  grab_op = meta_core_get_grab_op (display);
-  if (grab_frame != frame->xwindow)
-    grab_op = META_GRAB_OP_NONE;
-  
+  grab_op = meta_core_frame_has_grab (display, frame->xwindow, NULL, NULL);
+
   /* Set prelight state */
   switch (frame->prelit_control)
     {
@@ -2546,7 +2575,9 @@ meta_frames_enter_notify_event      (GtkWidget           *widget,
     return FALSE;
 
   control = get_control (frames, frame, event->x, event->y);
-  meta_frames_update_prelit_control (frames, frame, control);
+  meta_frames_update_prelit_control (frames, frame, 
+                                     gdk_event_get_device ((GdkEvent *) event),
+                                     control);
   
   return TRUE;
 }
@@ -2564,7 +2595,9 @@ meta_frames_leave_notify_event      (GtkWidget           *widget,
   if (frame == NULL)
     return FALSE;
 
-  meta_frames_update_prelit_control (frames, frame, META_FRAME_CONTROL_NONE);
+  meta_frames_update_prelit_control (frames, frame, 
+                                     gdk_event_get_device ((GdkEvent *) event),
+                                     META_FRAME_CONTROL_NONE);
   
   clear_tip (frames);
 

src/ui/frames.h

@@ -165,7 +165,8 @@ void meta_frames_move_resize_frame (MetaFrames *frames,
 void meta_frames_queue_draw (MetaFrames *frames,
                              Window      xwindow);
 
-void meta_frames_notify_menu_hide (MetaFrames *frames);
+void meta_frames_notify_menu_hide (MetaFrames *frames,
+                                   Window      client_xwindow);
 
 Window meta_frames_get_moving_frame (MetaFrames *frames);
 

src/ui/menu.c

@@ -137,7 +137,7 @@ menu_closed (GtkMenu *widget,
   
   menu = data;
 
-  meta_frames_notify_menu_hide (menu->frames);
+  meta_frames_notify_menu_hide (menu->frames, menu->client_xwindow);
   (* menu->func) (menu,
                   GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
                   menu->client_xwindow,
@@ -157,7 +157,7 @@ activate_cb (GtkWidget *menuitem, gpointer data)
   
   md = data;
 
-  meta_frames_notify_menu_hide (md->menu->frames);
+  meta_frames_notify_menu_hide (md->menu->frames, md->menu->client_xwindow);
   (* md->menu->func) (md->menu,
                       GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
                       md->menu->client_xwindow,
@@ -498,13 +498,17 @@ meta_window_menu_new   (MetaFrames         *frames,
 
 void
 meta_window_menu_popup (MetaWindowMenu     *menu,
+                        MetaDevice         *device,
                         int                 root_x,
                         int                 root_y,
                         int                 button,
                         guint32             timestamp)
 {
+  GdkDeviceManager *device_manager;
+  GdkDevice *gdkdevice;
+  GdkDisplay *display;
   GdkPoint *pt;
-  
+
   pt = g_new (GdkPoint, 1);
 
   g_object_set_data_full (G_OBJECT (menu->menu),
@@ -514,12 +518,18 @@ meta_window_menu_popup (MetaWindowMenu     *menu,
 
   pt->x = root_x;
   pt->y = root_y;
-  
-  gtk_menu_popup (GTK_MENU (menu->menu),
-                  NULL, NULL,
-                  popup_position_func, pt,
-                  button,
-                  timestamp);
+
+  display = gtk_widget_get_display (menu->menu);
+  device_manager = gdk_display_get_device_manager (display);
+  gdkdevice = gdk_x11_device_manager_lookup (device_manager,
+                                             meta_device_get_id (device));
+
+  gtk_menu_popup_for_device (GTK_MENU (menu->menu),
+                             gdkdevice,
+                             NULL, NULL,
+                             popup_position_func, pt, NULL,
+                             button,
+                             timestamp);
 
   if (!gtk_widget_get_visible (menu->menu))
     meta_warning ("GtkMenu failed to grab the pointer\n");

src/ui/menu.h

@@ -25,6 +25,7 @@
 #define META_MENU_H
 
 #include <gtk/gtk.h>
+#include <meta/device.h>
 #include "frames.h"
 
 /* Stock icons */
@@ -52,6 +53,7 @@ MetaWindowMenu* meta_window_menu_new      (MetaFrames         *frames,
                                            MetaWindowMenuFunc  func,
                                            gpointer            data);
 void            meta_window_menu_popup    (MetaWindowMenu     *menu,
+                                           MetaDevice         *device,
                                            int                 root_x,
                                            int                 root_y,
                                            int                 button,

src/ui/tabpopup.c

@@ -852,12 +852,21 @@ static WnckWindowDisplayInfo
 meta_convert_meta_to_wnck (MetaWindow *window, MetaScreen *screen)
 {
   WnckWindowDisplayInfo wnck_window;
+  MetaFocusInfo *focus_info;
+  GHashTableIter iter;
+
   wnck_window.icon = window->icon;
   wnck_window.mini_icon = window->mini_icon;
   
   wnck_window.is_active = FALSE;
-  if (window == window->display->expected_focus_window)
-    wnck_window.is_active = TRUE;
+
+  g_hash_table_iter_init (&iter, window->display->focus_info);
+
+  while (g_hash_table_iter_next (&iter, NULL, (gpointer *) &focus_info))
+    {
+      if (window == focus_info->expected_focus_window)
+        wnck_window.is_active = TRUE;
+    }
 
   if (window->frame)
     {

src/ui/tile-preview.c

@@ -171,6 +171,7 @@ meta_tile_preview_free (MetaTilePreview *preview)
 
 void
 meta_tile_preview_show (MetaTilePreview *preview,
+                        MetaDevice      *pointer,
                         MetaRectangle   *tile_rect)
 {
   GdkWindow *window;
@@ -187,6 +188,7 @@ meta_tile_preview_show (MetaTilePreview *preview,
   window = gtk_widget_get_window (preview->preview_window);
   meta_core_lower_beneath_grab_window (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
                                        GDK_WINDOW_XID (window),
+                                       meta_device_get_id (pointer),
                                        gtk_get_current_event_time ());
 
   old_rect.x = old_rect.y = 0;

src/ui/tile-preview.h

@@ -24,6 +24,7 @@
 #define META_TILE_PREVIEW_H
 
 #include <meta/boxes.h>
+#include <meta/device.h>
 
 typedef struct _MetaTilePreview MetaTilePreview;
 
@@ -31,6 +32,7 @@ MetaTilePreview   *meta_tile_preview_new    (int                screen_number,
                                              gboolean           composited);
 void               meta_tile_preview_free   (MetaTilePreview   *preview);
 void               meta_tile_preview_show   (MetaTilePreview   *preview,
+                                             MetaDevice        *pointer,
                                              MetaRectangle     *rect);
 void               meta_tile_preview_hide   (MetaTilePreview   *preview);
 Window             meta_tile_preview_get_xwindow (MetaTilePreview   *preview,

src/ui/ui.c

@@ -30,6 +30,7 @@
 #include "menu.h"
 #include "core.h"
 #include "theme-private.h"
+#include "input-events.h"
 
 #include "inlinepixbufs.h"
 
@@ -60,15 +61,8 @@ struct _MetaUI
 void
 meta_ui_init (void)
 {
-  /* As of 2.91.7, Gdk uses XI2 by default, which conflicts with the
-   * direct X calls we use - in particular, events caused by calls to
-   * XGrabPointer/XGrabKeyboard are no longer understood by GDK, while
-   * GDK will no longer generate the core XEvents we process.
-   * So at least for now, enforce the previous behavior.
-   */
-#if GTK_CHECK_VERSION(2, 91, 7)
-  gdk_disable_multidevice ();
-#endif
+  if (meta_get_use_core_devices ())
+    gdk_disable_multidevice ();
 
   if (!gtk_init_check (NULL, NULL))
     meta_fatal ("Unable to open X display %s\n", XDisplayName (NULL));
@@ -107,23 +101,25 @@ maybe_redirect_mouse_event (XEvent *xevent)
   GdkEvent *gevent;
   GdkWindow *gdk_window;
   Window window;
+  MetaDisplay *display;
+  MetaDevice *device;
+  gdouble x, y, x_root, y_root;
+  guint evtype, n_button;
+  Time evtime;
 
-  switch (xevent->type)
-    {
-    case ButtonPress:
-    case ButtonRelease:
-      window = xevent->xbutton.window;
-      break;
-    case MotionNotify:
-      window = xevent->xmotion.window;
-      break;
-    case EnterNotify:
-    case LeaveNotify:
-      window = xevent->xcrossing.window;
-      break;
-    default:
-      return FALSE;
-    }
+  display = meta_display_for_x_display (xevent->xany.display);
+
+  if (!meta_input_event_get_type (display, xevent, &evtype))
+    return FALSE;
+
+  if (evtype != ButtonPress &&
+      evtype != ButtonRelease &&
+      evtype != EnterNotify &&
+      evtype != LeaveNotify &&
+      evtype != MotionNotify)
+    return FALSE;
+
+  window = meta_input_event_get_window (display, xevent);
 
   gdisplay = gdk_x11_lookup_xdisplay (xevent->xany.display);
   ui = g_object_get_data (G_OBJECT (gdisplay), "meta-ui");
@@ -134,8 +130,14 @@ maybe_redirect_mouse_event (XEvent *xevent)
   if (gdk_window == NULL)
     return FALSE;
 
+  device = meta_input_event_get_device (display, xevent);
+
+  if (!device)
+    return FALSE;
+
   gmanager = gdk_display_get_device_manager (gdisplay);
-  gdevice = gdk_device_manager_get_client_pointer (gmanager);
+  gdevice = gdk_x11_device_manager_lookup (gmanager,
+                                           meta_device_get_id (device));
 
   /* If GDK already thinks it has a grab, we better let it see events; this
    * is the menu-navigation case and events need to get sent to the appropriate
@@ -144,11 +146,16 @@ maybe_redirect_mouse_event (XEvent *xevent)
   if (gdk_display_device_is_grabbed (gdisplay, gdevice))
     return FALSE;
 
-  switch (xevent->type)
+  evtime = meta_input_event_get_time (display, xevent);
+  meta_input_event_get_coordinates (display, xevent,
+                                    &x, &y, &x_root, &y_root);
+  switch (evtype)
     {
     case ButtonPress:
     case ButtonRelease:
-      if (xevent->type == ButtonPress)
+      meta_input_event_get_button (display, xevent, &n_button);
+
+      if (evtype == ButtonPress)
         {
           GtkSettings *settings = gtk_settings_get_default ();
           int double_click_time;
@@ -159,11 +166,11 @@ maybe_redirect_mouse_event (XEvent *xevent)
                         "gtk-double-click-distance", &double_click_distance,
                         NULL);
 
-          if (xevent->xbutton.button == ui->button_click_number &&
-              xevent->xbutton.window == ui->button_click_window &&
-              xevent->xbutton.time < ui->button_click_time + double_click_time &&
-              ABS (xevent->xbutton.x - ui->button_click_x) <= double_click_distance &&
-              ABS (xevent->xbutton.y - ui->button_click_y) <= double_click_distance)
+          if (n_button == ui->button_click_number &&
+              window == ui->button_click_window &&
+              evtime < ui->button_click_time + double_click_time &&
+              ABS ((int) x - ui->button_click_x) <= double_click_distance &&
+              ABS ((int) y - ui->button_click_y) <= double_click_distance)
             {
               gevent = gdk_event_new (GDK_2BUTTON_PRESS);
 
@@ -172,11 +179,11 @@ maybe_redirect_mouse_event (XEvent *xevent)
           else
             {
               gevent = gdk_event_new (GDK_BUTTON_PRESS);
-              ui->button_click_number = xevent->xbutton.button;
-              ui->button_click_window = xevent->xbutton.window;
-              ui->button_click_time = xevent->xbutton.time;
-              ui->button_click_x = xevent->xbutton.x;
-              ui->button_click_y = xevent->xbutton.y;
+              ui->button_click_number = n_button;
+              ui->button_click_window = window;
+              ui->button_click_time = evtime;
+              ui->button_click_x = (int) x;
+              ui->button_click_y = (int) y;
             }
         }
       else
@@ -185,25 +192,29 @@ maybe_redirect_mouse_event (XEvent *xevent)
         }
 
       gevent->button.window = g_object_ref (gdk_window);
-      gevent->button.button = xevent->xbutton.button;
-      gevent->button.time = xevent->xbutton.time;
-      gevent->button.x = xevent->xbutton.x;
-      gevent->button.y = xevent->xbutton.y;
-      gevent->button.x_root = xevent->xbutton.x_root;
-      gevent->button.y_root = xevent->xbutton.y_root;
+      gevent->button.button = n_button;
+      gevent->button.time = evtime;
+      gevent->button.x = x;
+      gevent->button.y = y;
+      gevent->button.x_root = x_root;
+      gevent->button.y_root = y_root;
 
       break;
     case MotionNotify:
       gevent = gdk_event_new (GDK_MOTION_NOTIFY);
       gevent->motion.type = GDK_MOTION_NOTIFY;
       gevent->motion.window = g_object_ref (gdk_window);
+      gevent->motion.x = x;
+      gevent->motion.y = y;
+      gevent->motion.x_root = x_root;
+      gevent->motion.y_root = y_root;
       break;
     case EnterNotify:
     case LeaveNotify:
-      gevent = gdk_event_new (xevent->type == EnterNotify ? GDK_ENTER_NOTIFY : GDK_LEAVE_NOTIFY);
+      gevent = gdk_event_new (evtype == EnterNotify ? GDK_ENTER_NOTIFY : GDK_LEAVE_NOTIFY);
       gevent->crossing.window = g_object_ref (gdk_window);
-      gevent->crossing.x = xevent->xcrossing.x;
-      gevent->crossing.y = xevent->xcrossing.y;
+      gevent->crossing.x = x;
+      gevent->crossing.y = y;
       break;
     default:
       g_assert_not_reached ();
@@ -396,7 +407,8 @@ meta_ui_create_frame_window (MetaUI *ui,
 		    &attrs, attributes_mask);
 
   gdk_window_resize (window, width, height);
-  
+  gdk_window_set_support_multidevice (window, TRUE);
+
   meta_frames_manage_window (ui->frames, GDK_WINDOW_XID (window), window);
 
   return GDK_WINDOW_XID (window);
@@ -524,12 +536,13 @@ meta_ui_window_menu_new  (MetaUI             *ui,
 
 void
 meta_ui_window_menu_popup (MetaWindowMenu     *menu,
+                           MetaDevice         *device,
                            int                 root_x,
                            int                 root_y,
                            int                 button,
                            guint32             timestamp)
 {
-  meta_window_menu_popup (menu, root_x, root_y, button, timestamp);
+  meta_window_menu_popup (menu, device, root_x, root_y, button, timestamp);
 }
 
 void

src/ui/ui.h

@@ -26,6 +26,7 @@
 
 /* Don't include gtk.h or gdk.h here */
 #include <meta/common.h>
+#include <meta/device.h>
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>
 #include <cairo.h>
@@ -129,6 +130,7 @@ MetaWindowMenu* meta_ui_window_menu_new   (MetaUI             *ui,
                                            MetaWindowMenuFunc  func,
                                            gpointer            data);
 void            meta_ui_window_menu_popup (MetaWindowMenu     *menu,
+                                           MetaDevice         *device,
                                            int                 root_x,
                                            int                 root_y,
                                            int                 button,