isa/mutter
1
0
Fork 0
mirror of https://github.com/brl/mutter.git synced 2025-06-13 16:59:30 +00:00
Code Issues Packages Projects Releases Wiki Activity

wayland: Adds basic hybrid X + Wayland support

Browse Source 
This adds support for running mutter as a hybrid X and Wayland
compositor. It runs a headless XWayland server for X applications
that presents wayland surfaces back to mutter which mutter can then
composite.

This aims to not break Mutter's existing support for the traditional X
compositing model which means a single build of Mutter can be
distributed supporting the traditional model and the new Wayland based
compositing model.

TODO: although building with --disable-wayland has at least been tested,
I still haven't actually verified that running as a traditional
compositor isn't broken currently.

Note: At this point no input is supported

Note: multiple authors have contributed to this patch:
Authored-by: Robert Bragg <robert@linux.intel.com>
Authored-by: Neil Roberts <neil@linux.intel.com>
Authored-by: Rico Tzschichholz.
Authored-by: Giovanni Campagna <gcampagna@src.gnome.org>
This commit is contained in:
Robert Bragg
2012-01-07 22:21:32 +00:00
committed by Jasper St. Pierre
parent bd3c357212
commit f9a11b3b18
20 changed files with 3156 additions and 677 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
src/core/display.c
View File

@ -931,8 +931,24 @@ meta_display_open (void)
while (tmp != NULL)
{
MetaScreen *screen = tmp->data;
meta_screen_manage_all_windows (screen);
if (meta_is_wayland_compositor ())
{
/* Instead of explicitly enumerating all windows during
* initialization, when we run as a wayland compositor we can rely on
* xwayland notifying us of all top level windows so we create
* MetaWindows when we get those notifications.
*
* We still want a guard window so we can avoid
* unmapping/withdrawing minimized windows for live
* thumbnails...
*/
if (screen->guard_window == None)
screen->guard_window =
meta_screen_create_guard_window (screen->display->xdisplay, screen);
}
else
meta_screen_manage_all_windows (screen);
tmp = tmp->next;
}
@ -2284,8 +2300,8 @@ event_callback (XEvent *event,
}
if (display->compositor)
meta_compositor_window_shape_changed (display->compositor,
window);
meta_compositor_window_x11_shape_changed (display->compositor,
window);
}
else if (sev->kind == ShapeInput)
{
@ -2311,8 +2327,8 @@ event_callback (XEvent *event,
}
if (display->compositor)
meta_compositor_window_shape_changed (display->compositor,
window);
meta_compositor_window_x11_shape_changed (display->compositor,
window);
}
}
else

116
src/core/main.c
View File

@ -55,6 +55,9 @@
#include "session.h"
#include <meta/prefs.h>
#include <meta/compositor.h>
#ifdef HAVE_WAYLAND
#include "meta-wayland-private.h"
#endif
#include <glib-object.h>
#include <gdk/gdkx.h>
@ -346,28 +349,74 @@ meta_finalize (void)
if (display)
meta_display_close (display,
CurrentTime); /* I doubt correct timestamps matter here */
#ifdef HAVE_WAYLAND
if (meta_is_wayland_compositor ())
meta_wayland_finalize ();
#endif
}
static int sigterm_pipe_fds[2] = { -1, -1 };
static int signal_pipe_fds[2] = { -1, -1 };
static void
sigterm_handler (int signum)
signal_handler (int signum)
{
if (sigterm_pipe_fds[1] >= 0)
if (signal_pipe_fds[1] >= 0)
{
int G_GNUC_UNUSED dummy;
dummy = write (sigterm_pipe_fds[1], "", 1);
close (sigterm_pipe_fds[1]);
sigterm_pipe_fds[1] = -1;
switch (signum)
{
case SIGTERM:
write (signal_pipe_fds[1], "T", 1);
break;
case SIGCHLD:
write (signal_pipe_fds[1], "C", 1);
break;
default:
break;
}
}
}
static gboolean
on_sigterm (void)
on_signal (GIOChannel *source,
GIOCondition condition,
void *data)
{
meta_quit (META_EXIT_SUCCESS);
return FALSE;
char signal;
int count;
for (;;)
{
count = read (signal_pipe_fds[0], &signal, 1);
if (count == EINTR)
continue;
if (count < 0)
{
const char *msg = strerror (errno);
g_warning ("Error handling signal: %s", msg);
}
if (count != 1)
{
g_warning ("Unexpectedly failed to read byte from signal pipe\n");
return TRUE;
}
break;
}
switch (signal)
{
case 'T': /* SIGTERM */
meta_quit (META_EXIT_SUCCESS);
break;
#ifdef HAVE_WAYLAND
case 'C': /* SIGCHLD */
meta_wayland_handle_sig_child ();
break;
#endif
default:
g_warning ("Spurious character '%c' read from signal pipe", signal);
}
return TRUE;
}
/**
@ -396,21 +445,28 @@ meta_init (void)
g_strerror (errno));
#endif
if (pipe (sigterm_pipe_fds) != 0)
g_printerr ("Failed to create SIGTERM pipe: %s\n",
if (pipe (signal_pipe_fds) != 0)
g_printerr ("Failed to create signal pipe: %s\n",
g_strerror (errno));
channel = g_io_channel_unix_new (sigterm_pipe_fds[0]);
channel = g_io_channel_unix_new (signal_pipe_fds[0]);
g_io_channel_set_flags (channel, G_IO_FLAG_NONBLOCK, NULL);
g_io_add_watch (channel, G_IO_IN, (GIOFunc) on_sigterm, NULL);
g_io_add_watch (channel, G_IO_IN, (GIOFunc) on_signal, NULL);
g_io_channel_set_close_on_unref (channel, TRUE);
g_io_channel_unref (channel);
act.sa_handler = &sigterm_handler;
act.sa_handler = &signal_handler;
if (sigaction (SIGTERM, &act, NULL) < 0)
g_printerr ("Failed to register SIGTERM handler: %s\n",
g_strerror (errno));
if (meta_is_wayland_compositor ())
{
if (sigaction (SIGCHLD, &act, NULL) < 0)
g_printerr ("Failed to register SIGCHLD handler: %s\n",
g_strerror (errno));
}
if (g_getenv ("MUTTER_VERBOSE"))
meta_set_verbose (TRUE);
if (g_getenv ("MUTTER_DEBUG"))
@ -427,9 +483,18 @@ meta_init (void)
g_irepository_prepend_search_path (MUTTER_PKGLIBDIR);
#endif
meta_set_syncing (opt_sync || (g_getenv ("MUTTER_SYNC") != NULL));
#ifdef HAVE_WAYLAND
if (meta_is_wayland_compositor ())
{
/* NB: When running as a hybrid wayland compositor we run our own headless X
* server so the user can't control the X display to connect too. */
meta_wayland_init ();
}
else
#endif
meta_select_display (opt_display_name);
meta_select_display (opt_display_name);
meta_set_syncing (opt_sync || (g_getenv ("MUTTER_SYNC") != NULL));
if (opt_replace_wm)
meta_set_replace_current_wm (TRUE);
@ -441,10 +506,17 @@ meta_init (void)
meta_ui_init ();
/*
* Clutter can only be initialized after the UI.
*/
meta_clutter_init ();
/* If we are running with wayland then we don't wait until we have
* an X connection before initializing clutter we instead initialize
* it earlier since we need to initialize the GL driver so the driver
* can register any needed wayland extensions. */
if (!meta_is_wayland_compositor ())
{
/*
* Clutter can only be initialized after the UI.
*/
meta_clutter_init ();
}
}
/**

2
src/core/screen-private.h
View File

@ -257,4 +257,6 @@ void meta_screen_workspace_switched (MetaScreen *screen,
void meta_screen_set_active_workspace_hint (MetaScreen *screen);
Window meta_screen_create_guard_window (Display *xdisplay, MetaScreen *screen);
#endif

31
src/core/screen.c
View File

@ -45,6 +45,9 @@
#include <meta/compositor.h>
#include "mutter-enum-types.h"
#include "core.h"
#ifdef HAVE_WAYLAND
#include "meta-wayland-private.h"
#endif
#include <X11/extensions/Xinerama.h>
@ -603,8 +606,8 @@ reload_monitor_infos (MetaScreen *screen)
* should effectively be forwarded to events on the background actor,
* providing that the scene graph is set up correctly.
*/
static Window
create_guard_window (Display *xdisplay, MetaScreen *screen)
Window
meta_screen_create_guard_window (Display *xdisplay, MetaScreen *screen)
{
XSetWindowAttributes attributes;
Window guard_window;
@ -668,6 +671,9 @@ meta_screen_new (MetaDisplay *display,
char buf[128];
guint32 manager_timestamp;
gulong current_workspace;
#ifdef HAVE_WAYLAND
MetaWaylandCompositor *compositor;
#endif
replace_current_wm = meta_get_replace_current_wm ();
@ -826,8 +832,21 @@ meta_screen_new (MetaDisplay *display,
screen->xscreen = ScreenOfDisplay (xdisplay, number);
screen->xroot = xroot;
screen->rect.x = screen->rect.y = 0;
screen->rect.width = WidthOfScreen (screen->xscreen);
screen->rect.height = HeightOfScreen (screen->xscreen);
#ifdef HAVE_WAYLAND
if (meta_is_wayland_compositor ())
{
compositor = meta_wayland_compositor_get_default ();
screen->rect.width = clutter_actor_get_width (compositor->stage);
screen->rect.height = clutter_actor_get_height (compositor->stage);
}
else
#endif
{
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);
@ -1082,8 +1101,8 @@ meta_screen_manage_all_windows (MetaScreen *screen)
meta_display_grab (screen->display);
if (screen->guard_window == None)
screen->guard_window = create_guard_window (screen->display->xdisplay,
screen);
screen->guard_window =
meta_screen_create_guard_window (screen->display->xdisplay, screen);
windows = list_windows (screen);

24
src/core/window-private.h
View File

@ -44,6 +44,17 @@
#include <X11/Xutil.h>
#include <cairo.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#ifdef HAVE_WAYLAND
#include "meta-wayland-private.h"
#endif
/* XXX: We should find a nicer approach to deal with the
* circular dependency we have with the current headers
* (meta-wayland-private.h which typedefs MetaWaylandSurface
* also includes window-private.h) */
#ifndef HAVE_META_WAYLAND_SURFACE_TYPE
typedef struct _MetaWaylandSurface MetaWaylandSurface;
#endif
typedef struct _MetaWindowQueue MetaWindowQueue;
@ -69,6 +80,11 @@ typedef enum {
_NET_WM_BYPASS_COMPOSITOR_HINT_OFF = 2,
} MetaBypassCompositorHintValue;
typedef enum {
META_WINDOW_CLIENT_TYPE_WAYLAND,
META_WINDOW_CLIENT_TYPE_X11
} MetaWindowClientType;
struct _MetaWindow
{
GObject parent_instance;
@ -77,6 +93,10 @@ struct _MetaWindow
MetaScreen *screen;
const MetaMonitorInfo *monitor;
MetaWorkspace *workspace;
MetaWindowClientType client_type;
#ifdef HAVE_WAYLAND
MetaWaylandSurface *surface;
#endif
Window xwindow;
/* may be NULL! not all windows get decorated */
MetaFrame *frame;
@ -489,6 +509,10 @@ MetaWindow* meta_window_new_with_attrs (MetaDisplay *display,
gboolean must_be_viewable,
MetaCompEffect effect,
XWindowAttributes *attrs);
MetaWindow *meta_window_new_for_wayland (MetaDisplay *display,
int width,
int height,
MetaWaylandSurface *surface);
void meta_window_unmanage (MetaWindow *window,
guint32 timestamp);
void meta_window_calc_showing (MetaWindow *window);

656
src/core/window.c
View File

@ -713,10 +713,10 @@ meta_window_new (MetaDisplay *display,
* Returns TRUE if window has been filtered out and should be ignored.
*/
static gboolean
maybe_filter_window (MetaDisplay *display,
Window xwindow,
gboolean must_be_viewable,
XWindowAttributes *attrs)
maybe_filter_xwindow (MetaDisplay *display,
Window xwindow,
gboolean must_be_viewable,
XWindowAttributes *attrs)
{
static char **filter_wm_classes = NULL;
static gboolean initialized = FALSE;
@ -812,81 +812,25 @@ meta_window_should_attach_to_parent (MetaWindow *window)
}
}
MetaWindow*
meta_window_new_with_attrs (MetaDisplay *display,
Window xwindow,
gboolean must_be_viewable,
MetaCompEffect effect,
XWindowAttributes *attrs)
static MetaWindow*
meta_window_new_shared (MetaDisplay *display,
MetaScreen *screen,
MetaWindowClientType client_type,
MetaWaylandSurface *surface,
Window xwindow,
gboolean must_be_viewable,
gulong existing_wm_state,
gboolean has_shape,
gboolean has_input_shape,
MetaCompEffect effect,
XWindowAttributes *attrs)
{
MetaWindow *window;
GSList *tmp;
MetaWorkspace *space;
gulong existing_wm_state;
gulong event_mask;
MetaMoveResizeFlags flags;
gboolean has_shape;
gboolean has_input_shape;
MetaScreen *screen;
g_assert (attrs != NULL);
meta_verbose ("Attempting to manage 0x%lx\n", xwindow);
if (meta_display_xwindow_is_a_no_focus_window (display, xwindow))
{
meta_verbose ("Not managing no_focus_window 0x%lx\n",
xwindow);
return NULL;
}
screen = NULL;
for (tmp = display->screens; tmp != NULL; tmp = tmp->next)
{
MetaScreen *scr = tmp->data;
if (scr->xroot == attrs->root)
{
screen = tmp->data;
break;
}
}
g_assert (screen);
/* A black list of override redirect windows that we don't need to manage: */
if (attrs->override_redirect &&
(xwindow == screen->no_focus_window ||
xwindow == screen->flash_window ||
xwindow == screen->wm_sn_selection_window ||
attrs->class == InputOnly ||
/* any windows created via meta_create_offscreen_window: */
(attrs->x == -100 && attrs->y == -100
&& attrs->width == 1 && attrs->height == 1) ||
xwindow == screen->wm_cm_selection_window ||
xwindow == screen->guard_window ||
(display->compositor &&
xwindow == XCompositeGetOverlayWindow (display->xdisplay,
screen->xroot)
)
)
) {
meta_verbose ("Not managing our own windows\n");
return NULL;
}
if (maybe_filter_window (display, xwindow, must_be_viewable, attrs))
{
meta_verbose ("Not managing filtered window\n");
return NULL;
}
/* Grab server */
meta_display_grab (display);
meta_error_trap_push (display); /* Push a trap over all of window
* creation, to reduce XSync() calls
*/
meta_verbose ("must_be_viewable = %d attrs->map_state = %d (%s)\n",
must_be_viewable,
attrs->map_state,
@ -898,150 +842,16 @@ meta_window_new_with_attrs (MetaDisplay *display,
"IsUnviewable" :
"(unknown)");
existing_wm_state = WithdrawnState;
if (must_be_viewable && attrs->map_state != IsViewable)
{
/* Only manage if WM_STATE is IconicState or NormalState */
gulong state;
/* WM_STATE isn't a cardinal, it's type WM_STATE, but is an int */
if (!(meta_prop_get_cardinal_with_atom_type (display, xwindow,
display->atom_WM_STATE,
display->atom_WM_STATE,
&state) &&
(state == IconicState || state == NormalState)))
{
meta_verbose ("Deciding not to manage unmapped or unviewable window 0x%lx\n", xwindow);
meta_error_trap_pop (display);
meta_display_ungrab (display);
return NULL;
}
existing_wm_state = state;
meta_verbose ("WM_STATE of %lx = %s\n", xwindow,
wm_state_to_string (existing_wm_state));
}
meta_error_trap_push_with_return (display);
/*
* XAddToSaveSet can only be called on windows created by a different client.
* with Mutter we want to be able to create manageable windows from within
* the process (such as a dummy desktop window), so we do not want this
* call failing to prevent the window from being managed -- wrap it in its
* own error trap (we use the _with_return() version here to ensure that
* XSync() is done on the pop, otherwise the error will not get caught).
*/
meta_error_trap_push_with_return (display);
XAddToSaveSet (display->xdisplay, xwindow);
meta_error_trap_pop_with_return (display);
event_mask = PropertyChangeMask | ColormapChangeMask;
if (attrs->override_redirect)
event_mask |= StructureNotifyMask;
/* If the window is from this client (a menu, say) we need to augment
* the event mask, not replace it. For windows from other clients,
* attrs->your_event_mask will be empty at this point.
*/
XSelectInput (display->xdisplay, xwindow, attrs->your_event_mask | event_mask);
{
unsigned char mask_bits[XIMaskLen (XI_LASTEVENT)] = { 0 };
XIEventMask mask = { XIAllMasterDevices, sizeof (mask_bits), mask_bits };
meta_core_add_old_event_mask (display->xdisplay, xwindow, &mask);
XISetMask (mask.mask, XI_Enter);
XISetMask (mask.mask, XI_Leave);
XISetMask (mask.mask, XI_FocusIn);
XISetMask (mask.mask, XI_FocusOut);
XISelectEvents (display->xdisplay, xwindow, &mask, 1);
}
has_shape = FALSE;
has_input_shape = FALSE;
#ifdef HAVE_SHAPE
if (META_DISPLAY_HAS_SHAPE (display))
{
int x_bounding, y_bounding, x_clip, y_clip;
unsigned w_bounding, h_bounding, w_clip, h_clip;
int bounding_shaped, clip_shaped;
XRectangle *input_rectangles;
int n_rects, ordering;
XShapeSelectInput (display->xdisplay, xwindow, ShapeNotifyMask);
XShapeQueryExtents (display->xdisplay, xwindow,
&bounding_shaped, &x_bounding, &y_bounding,
&w_bounding, &h_bounding,
&clip_shaped, &x_clip, &y_clip,
&w_clip, &h_clip);
has_shape = bounding_shaped != FALSE;
/* XXX: The x shape extension doesn't provide a way to only test if an
* input shape has been specified, so we have to query and throw away the
* rectangles. */
meta_error_trap_push (display);
input_rectangles = XShapeGetRectangles (display->xdisplay, xwindow,
ShapeInput, &n_rects, &ordering);
meta_error_trap_pop (display);
if (input_rectangles)
{
if (n_rects > 1 ||
(n_rects == 1 &&
(input_rectangles[0].x != x_bounding ||
input_rectangles[1].y != y_bounding ||
input_rectangles[2].width != w_bounding ||
input_rectangles[3].height != h_bounding)))
{
has_input_shape = TRUE;
}
XFree (input_rectangles);
}
meta_topic (META_DEBUG_SHAPES,
"Window has_shape = %d extents %d,%d %u x %u\n",
has_shape, x_bounding, y_bounding,
w_bounding, h_bounding);
}
#endif
/* Get rid of any borders */
if (attrs->border_width != 0)
XSetWindowBorderWidth (display->xdisplay, xwindow, 0);
/* Get rid of weird gravities */
if (attrs->win_gravity != NorthWestGravity)
{
XSetWindowAttributes set_attrs;
set_attrs.win_gravity = NorthWestGravity;
XChangeWindowAttributes (display->xdisplay,
xwindow,
CWWinGravity,
&set_attrs);
}
if (meta_error_trap_pop_with_return (display) != Success)
{
meta_verbose ("Window 0x%lx disappeared just as we tried to manage it\n",
xwindow);
meta_error_trap_pop (display);
meta_display_ungrab (display);
return NULL;
}
window = g_object_new (META_TYPE_WINDOW, NULL);
window->constructing = TRUE;
window->dialog_pid = -1;
window->client_type = client_type;
#ifdef HAVE_WAYLAND
window->surface = surface;
#endif
window->xwindow = xwindow;
/* this is in window->screen->display, but that's too annoying to
@ -1168,7 +978,11 @@ meta_window_new_with_attrs (MetaDisplay *display,
window->mwm_has_move_func = TRUE;
window->mwm_has_resize_func = TRUE;
window->decorated = TRUE;
if (client_type == META_WINDOW_CLIENT_TYPE_X11)
window->decorated = TRUE;
else
window->decorated = FALSE;
window->has_close_func = TRUE;
window->has_minimize_func = TRUE;
window->has_maximize_func = TRUE;
@ -1227,23 +1041,26 @@ meta_window_new_with_attrs (MetaDisplay *display,
window->tile_match = NULL;
if (window->override_redirect)
{
window->decorated = FALSE;
window->always_sticky = TRUE;
window->has_close_func = FALSE;
window->has_shade_func = FALSE;
window->has_move_func = FALSE;
window->has_resize_func = FALSE;
}
meta_display_register_x_window (display, &window->xwindow, window);
/* Assign this #MetaWindow a sequence number which can be used
* for sorting.
*/
window->stable_sequence = ++display->window_sequence_counter;
if (client_type == META_WINDOW_CLIENT_TYPE_X11)
{
if (window->override_redirect)
{
window->decorated = FALSE;
window->always_sticky = TRUE;
window->has_close_func = FALSE;
window->has_shade_func = FALSE;
window->has_move_func = FALSE;
window->has_resize_func = FALSE;
}
meta_display_register_x_window (display, &window->xwindow, window);
}
/* assign the window to its group, or create a new group if needed
*/
window->group = NULL;
@ -1252,7 +1069,8 @@ meta_window_new_with_attrs (MetaDisplay *display,
meta_window_load_initial_properties (window);
if (!window->override_redirect)
if (!window->override_redirect &&
client_type == META_WINDOW_CLIENT_TYPE_X11)
{
update_sm_hints (window); /* must come after transient_for */
@ -1526,11 +1344,14 @@ meta_window_new_with_attrs (MetaDisplay *display,
!window->initially_iconic)
unminimize_window_and_all_transient_parents (window);
meta_error_trap_pop (display); /* pop the XSync()-reducing trap */
meta_display_ungrab (display);
window->constructing = FALSE;
return window;
}
static void
display_notify_window (MetaDisplay *display, MetaWindow *window)
{
meta_display_notify_window_created (display, window);
if (window->wm_state_demands_attention)
@ -1538,6 +1359,309 @@ meta_window_new_with_attrs (MetaDisplay *display,
if (window->wm_hints_urgent)
g_signal_emit_by_name (window->display, "window-marked-urgent", window);
}
#ifdef HAVE_WAYLAND
MetaWindow *
meta_window_new_for_wayland (MetaDisplay *display,
int width,
int height,
MetaWaylandSurface *surface)
{
XWindowAttributes attrs;
MetaScreen *scr = display->screens->data;
MetaWindow *window;
attrs.x = 0;
attrs.y = 0;
attrs.width = width;
attrs.height = height;
attrs.border_width = 0;
attrs.depth = 24;
attrs.visual = NULL;
attrs.root = scr->xroot;
attrs.class = InputOutput;
attrs.bit_gravity = NorthWestGravity;
attrs.win_gravity = NorthWestGravity;
attrs.backing_store = 0;
attrs.backing_planes = ~0;
attrs.backing_pixel = 0;
attrs.save_under = 0;
attrs.colormap = 0;
attrs.map_installed = 1;
attrs.map_state = IsUnmapped;
attrs.all_event_masks = ~0;
attrs.your_event_mask = 0;
attrs.do_not_propagate_mask = 0;
attrs.override_redirect = 0;
attrs.screen = scr->xscreen;
/* XXX: Note: In the Wayland case we currently still grab the
* xserver and trap X errors while creating a MetaWindow because we
* will still be making various redundant X requests (passing a
* window xid of None) until we thoroughly audit all the code to
* make sure it knows about non X based clients...
*/
/* Grab server */
meta_display_grab (display);
meta_error_trap_push (display); /* Push a trap over all of window
* creation, to reduce XSync() calls
*/
window = meta_window_new_shared (display,
scr,
META_WINDOW_CLIENT_TYPE_WAYLAND,
surface,
None,
TRUE,
WithdrawnState,
FALSE, /* has shape */
FALSE, /* has input shape */
META_COMP_EFFECT_NONE,
&attrs);
meta_error_trap_pop (display); /* pop the XSync()-reducing trap */
meta_display_ungrab (display);
/* XXX: Maybe this could be called in meta_window_new_shared() but
* before splitting the X11 specific code out it came after the
* meta_display_ungrab() and we wanted to minimize the risk of
* breaking something.
*/
display_notify_window (window->display, window);
return window;
}
#endif
MetaWindow*
meta_window_new_with_attrs (MetaDisplay *display,
Window xwindow,
gboolean must_be_viewable,
MetaCompEffect effect,
XWindowAttributes *attrs)
{
MetaScreen *screen = NULL;
GSList *tmp;
gulong existing_wm_state;
MetaWindow *window;
gulong event_mask;
gboolean has_shape = FALSE;
gboolean has_input_shape = FALSE;
meta_verbose ("Attempting to manage 0x%lx\n", xwindow);
if (meta_display_xwindow_is_a_no_focus_window (display, xwindow))
{
meta_verbose ("Not managing no_focus_window 0x%lx\n",
xwindow);
return NULL;
}
for (tmp = display->screens; tmp != NULL; tmp = tmp->next)
{
MetaScreen *scr = tmp->data;
if (scr->xroot == attrs->root)
{
screen = tmp->data;
break;
}
}
g_assert (screen);
/* A black list of override redirect windows that we don't need to manage: */
if (attrs->override_redirect &&
(xwindow == screen->no_focus_window ||
xwindow == screen->flash_window ||
xwindow == screen->wm_sn_selection_window ||
attrs->class == InputOnly ||
/* any windows created via meta_create_offscreen_window: */
(attrs->x == -100 && attrs->y == -100
&& attrs->width == 1 && attrs->height == 1) ||
xwindow == screen->wm_cm_selection_window ||
xwindow == screen->guard_window ||
(display->compositor &&
xwindow == XCompositeGetOverlayWindow (display->xdisplay,
screen->xroot)
)
)
) {
meta_verbose ("Not managing our own windows\n");
return NULL;
}
if (maybe_filter_xwindow (display, xwindow, must_be_viewable, attrs))
{
meta_verbose ("Not managing filtered window\n");
return NULL;
}
/* Grab server */
meta_display_grab (display);
meta_error_trap_push (display); /* Push a trap over all of window
* creation, to reduce XSync() calls
*/
existing_wm_state = WithdrawnState;
if (must_be_viewable && attrs->map_state != IsViewable)
{
/* Only manage if WM_STATE is IconicState or NormalState */
gulong state;
/* WM_STATE isn't a cardinal, it's type WM_STATE, but is an int */
if (!(meta_prop_get_cardinal_with_atom_type (display, xwindow,
display->atom_WM_STATE,
display->atom_WM_STATE,
&state) &&
(state == IconicState || state == NormalState)))
{
meta_verbose ("Deciding not to manage unmapped or unviewable window 0x%lx\n", xwindow);
meta_error_trap_pop (display);
meta_display_ungrab (display);
return NULL;
}
existing_wm_state = state;
meta_verbose ("WM_STATE of %lx = %s\n", xwindow,
wm_state_to_string (existing_wm_state));
}
meta_error_trap_push_with_return (display);
/*
* XAddToSaveSet can only be called on windows created by a different
* client. with Mutter we want to be able to create manageable windows
* from within the process (such as a dummy desktop window), so we do not
* want this call failing to prevent the window from being managed -- wrap
* it in its own error trap (we use the _with_return() version here to
* ensure that XSync() is done on the pop, otherwise the error will not
* get caught).
*/
meta_error_trap_push_with_return (display);
XAddToSaveSet (display->xdisplay, xwindow);
meta_error_trap_pop_with_return (display);
event_mask = PropertyChangeMask | ColormapChangeMask;
if (attrs->override_redirect)
event_mask |= StructureNotifyMask;
/* If the window is from this client (a menu, say) we need to augment
* the event mask, not replace it. For windows from other clients,
* attrs->your_event_mask will be empty at this point.
*/
XSelectInput (display->xdisplay, xwindow, attrs->your_event_mask | event_mask);
{
unsigned char mask_bits[XIMaskLen (XI_LASTEVENT)] = { 0 };
XIEventMask mask = { XIAllMasterDevices, sizeof (mask_bits), mask_bits };
meta_core_add_old_event_mask (display->xdisplay, xwindow, &mask);
XISetMask (mask.mask, XI_Enter);
XISetMask (mask.mask, XI_Leave);
XISetMask (mask.mask, XI_FocusIn);
XISetMask (mask.mask, XI_FocusOut);
XISelectEvents (display->xdisplay, xwindow, &mask, 1);
}
#ifdef HAVE_SHAPE
if (META_DISPLAY_HAS_SHAPE (display))
{
int x_bounding, y_bounding, x_clip, y_clip;
unsigned w_bounding, h_bounding, w_clip, h_clip;
int bounding_shaped, clip_shaped;
XRectangle *input_rectangles;
int n_rects, ordering;
XShapeSelectInput (display->xdisplay, xwindow, ShapeNotifyMask);
XShapeQueryExtents (display->xdisplay, xwindow,
&bounding_shaped, &x_bounding, &y_bounding,
&w_bounding, &h_bounding,
&clip_shaped, &x_clip, &y_clip,
&w_clip, &h_clip);
has_shape = bounding_shaped != FALSE;
/* XXX: The x shape extension doesn't provide a way to only test if an
* input shape has been specified, so we have to query and throw away the
* rectangles. */
meta_error_trap_push (display);
input_rectangles = XShapeGetRectangles (display->xdisplay, xwindow,
ShapeInput, &n_rects, &ordering);
meta_error_trap_pop (display);
if (input_rectangles)
{
if (n_rects > 1 ||
(n_rects == 1 &&
(input_rectangles[0].x != x_bounding ||
input_rectangles[1].y != y_bounding ||
input_rectangles[2].width != w_bounding ||
input_rectangles[3].height != h_bounding)))
{
has_input_shape = TRUE;
}
XFree (input_rectangles);
}
meta_topic (META_DEBUG_SHAPES,
"Window has_shape = %d extents %d,%d %u x %u\n",
has_shape, x_bounding, y_bounding,
w_bounding, h_bounding);
}
#endif
/* Get rid of any borders */
if (attrs->border_width != 0)
XSetWindowBorderWidth (display->xdisplay, xwindow, 0);
/* Get rid of weird gravities */
if (attrs->win_gravity != NorthWestGravity)
{
XSetWindowAttributes set_attrs;
set_attrs.win_gravity = NorthWestGravity;
XChangeWindowAttributes (display->xdisplay,
xwindow,
CWWinGravity,
&set_attrs);
}
if (meta_error_trap_pop_with_return (display) != Success)
{
meta_verbose ("Window 0x%lx disappeared just as we tried to manage it\n",
xwindow);
meta_error_trap_pop (display);
meta_display_ungrab (display);
return NULL;
}
window = meta_window_new_shared (display,
screen,
META_WINDOW_CLIENT_TYPE_X11,
NULL,
xwindow,
must_be_viewable,
existing_wm_state,
has_shape,
has_input_shape,
effect,
attrs);
meta_error_trap_pop (display); /* pop the XSync()-reducing trap */
meta_display_ungrab (display);
/* XXX: Maybe this could be called in meta_window_new_shared() but
* before splitting the X11 specific code out it came after the
* meta_display_ungrab() and we wanted to minimize the risk of
* breaking something.
*/
display_notify_window (display, window);
return window;
}
@ -1914,48 +2038,50 @@ meta_window_unmanage (MetaWindow *window,
meta_display_ungrab_window_buttons (window->display, window->xwindow);
meta_display_ungrab_focus_window_button (window->display, window);
meta_display_unregister_x_window (window->display, window->xwindow);
meta_error_trap_push (window->display);
/* Put back anything we messed up */
if (window->border_width != 0)
XSetWindowBorderWidth (window->display->xdisplay,
window->xwindow,
window->border_width);
/* No save set */
XRemoveFromSaveSet (window->display->xdisplay,
window->xwindow);
/* Even though the window is now unmanaged, we can't unselect events. This
* window might be a window from this process, like a GdkMenu, in
* which case it will have pointer events and so forth selected
* for it by GDK. There's no way to disentangle those events from the events
* we've selected. Even for a window from a different X client,
* GDK could also have selected events for it for IPC purposes, so we
* can't unselect in that case either.
*
* Similarly, we can't unselected for events on window->user_time_window.
* It might be our own GDK focus window, or it might be a window that a
* different client is using for multiple different things:
* _NET_WM_USER_TIME_WINDOW and IPC, perhaps.
*/
if (window->user_time_window != None)
if (window->client_type == META_WINDOW_CLIENT_TYPE_X11)
{
meta_display_unregister_x_window (window->display,
window->user_time_window);
window->user_time_window = None;
}
meta_display_unregister_x_window (window->display, window->xwindow);
meta_error_trap_push (window->display);
/* Put back anything we messed up */
if (window->border_width != 0)
XSetWindowBorderWidth (window->display->xdisplay,
window->xwindow,
window->border_width);
/* No save set */
XRemoveFromSaveSet (window->display->xdisplay,
window->xwindow);
/* Even though the window is now unmanaged, we can't unselect events. This
* window might be a window from this process, like a GdkMenu, in
* which case it will have pointer events and so forth selected
* for it by GDK. There's no way to disentangle those events from the events
* we've selected. Even for a window from a different X client,
* GDK could also have selected events for it for IPC purposes, so we
* can't unselect in that case either.
*
* Similarly, we can't unselected for events on window->user_time_window.
* It might be our own GDK focus window, or it might be a window that a
* different client is using for multiple different things:
* _NET_WM_USER_TIME_WINDOW and IPC, perhaps.
*/
if (window->user_time_window != None)
{
meta_display_unregister_x_window (window->display,
window->user_time_window);
window->user_time_window = None;
}
#ifdef HAVE_SHAPE
if (META_DISPLAY_HAS_SHAPE (window->display))
XShapeSelectInput (window->display->xdisplay, window->xwindow, NoEventMask);
if (META_DISPLAY_HAS_SHAPE (window->display))
XShapeSelectInput (window->display->xdisplay, window->xwindow, NoEventMask);
#endif
meta_error_trap_pop (window->display);
meta_error_trap_pop (window->display);
}
meta_prefs_remove_listener (prefs_changed_callback, window);
@ -7697,7 +7823,7 @@ meta_window_update_opaque_region (MetaWindow *window)
meta_XFree (region);
if (window->display->compositor)
meta_compositor_window_shape_changed (window->display->compositor, window);
meta_compositor_window_x11_shape_changed (window->display->compositor, window);
}
static void