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Add ::window-added and ::window-removed signals to MetaWorkspace

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Add sigals to MetaWorkspace to allow tracking when windows are added
and removed. Note that on window creation that these signals are fired
before the window setup is totally complete, so they need to be used
with some care. (For example, the compositor, if present, has not
been notified of the new window.)

http://bugzilla.gnome.org/show_bug.cgi?id=580025
This commit is contained in:
Dan Winship 2009-02-02 15:27:43 -05:00 committed by Owen W. Taylor
parent 63b1d6642c
commit 6e9803cd9f
1 changed files with 29 additions and 1 deletions
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30
src/core/workspace.c
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@ -53,6 +53,16 @@ static void workspace_free_struts (MetaWorkspace *workspace);
G_DEFINE_TYPE (MetaWorkspace, meta_workspace, G_TYPE_OBJECT);
enum
{
WINDOW_ADDED,
WINDOW_REMOVED,
LAST_SIGNAL
};
static guint signals [LAST_SIGNAL] = { 0 };
static void
meta_workspace_finalize (GObject *object)
{
@ -102,11 +112,27 @@ meta_workspace_class_init (MetaWorkspaceClass *klass)
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GParamSpec *pspec;
object_class->finalize = meta_workspace_finalize;
object_class->get_property = meta_workspace_get_property;
object_class->set_property = meta_workspace_set_property;
signals[WINDOW_ADDED] = g_signal_new ("window-added",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL,
g_cclosure_marshal_VOID__OBJECT,
G_TYPE_NONE, 1,
META_TYPE_WINDOW);
signals[WINDOW_REMOVED] = g_signal_new ("window-removed",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL,
g_cclosure_marshal_VOID__OBJECT,
G_TYPE_NONE, 1,
META_TYPE_WINDOW);
pspec = g_param_spec_uint ("n-windows",
"N Windows",
"Number of windows",
@ -302,6 +328,7 @@ meta_workspace_add_window (MetaWorkspace *workspace,
*/
meta_window_queue (window, META_QUEUE_CALC_SHOWING|META_QUEUE_MOVE_RESIZE);
g_signal_emit (workspace, signals[WINDOW_ADDED], 0, window);
g_object_notify (G_OBJECT (workspace), "n-windows");
}
@ -350,6 +377,7 @@ meta_workspace_remove_window (MetaWorkspace *workspace,
*/
meta_window_queue (window, META_QUEUE_CALC_SHOWING|META_QUEUE_MOVE_RESIZE);
g_signal_emit (workspace, signals[WINDOW_REMOVED], 0, window);
g_object_notify (G_OBJECT (workspace), "n-windows");
}