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Add signals for when windows change monitors

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This is useful in order to track e.g. which windows are on the primary
monitor.

https://bugzilla.gnome.org/show_bug.cgi?id=609258
This commit is contained in:
Alexander Larsson
2011-02-28 21:26:11 +01:00
parent 4e28a4d654
commit 74b97dcd14
3 changed files with 53 additions and 0 deletions
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39
src/core/screen.c
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@@ -84,6 +84,8 @@ enum
WORKSPACE_ADDED,
WORKSPACE_REMOVED,
WORKSPACE_SWITCHED,
WINDOW_ENTERED_MONITOR,
WINDOW_LEFT_MONITOR,
STARTUP_SEQUENCE_CHANGED,
WORKAREAS_CHANGED,
MONITORS_CHANGED,
@@ -201,6 +203,28 @@ meta_screen_class_init (MetaScreenClass *klass)
G_TYPE_INT,
MUTTER_TYPE_MOTION_DIRECTION);
screen_signals[WINDOW_ENTERED_MONITOR] =
g_signal_new ("window-entered-monitor",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL,
_mutter_marshal_VOID__INT_OBJECT,
G_TYPE_NONE, 2,
G_TYPE_INT,
META_TYPE_WINDOW);
screen_signals[WINDOW_LEFT_MONITOR] =
g_signal_new ("window-left-monitor",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL,
_mutter_marshal_VOID__INT_OBJECT,
G_TYPE_NONE, 2,
G_TYPE_INT,
META_TYPE_WINDOW);
screen_signals[STARTUP_SEQUENCE_CHANGED] =
g_signal_new ("startup-sequence-changed",
G_TYPE_FROM_CLASS (klass),
@@ -2822,6 +2846,21 @@ meta_screen_resize (MetaScreen *screen,
screen->rect.width = width;
screen->rect.height = height;
/* Clear monitor for all windows on this screen, as it will become
* invalid. */
windows = meta_display_list_windows (screen->display,
META_LIST_INCLUDE_OVERRIDE_REDIRECT);
for (tmp = windows; tmp != NULL; tmp = tmp->next)
{
MetaWindow *window = tmp->data;
if (window->screen == screen)
{
g_signal_emit_by_name (screen, "window-left-monitor", window->monitor->number, window);
window->monitor = NULL;
}
}
reload_monitor_infos (screen);
set_desktop_geometry_hint (screen);