/**
* shell_app_system_get_app_for_window:
* @self: A #ShellAppSystem
* @window: A #MetaWindow
*
* Find or create a #ShellApp for window
*
* Return value: (transfer full): The #ShellApp for window, or %NULL if none
*/
ShellApp *
shell_app_system_get_app_for_window (ShellAppSystem *self,
MetaWindow *window)
{
char *id = g_strdup_printf ("window:%p", window);
ShellApp *app = g_hash_table_lookup (self->priv->app_id_to_app, id);
if (app)
g_object_ref (G_OBJECT (app));
else
app = _shell_app_new_for_window (window);
g_free (id);
return app;
}
/**
* get_app_for_window:
*
* Determines the application associated with a window, using
* all available information such as the window's MetaGroup,
* and what we know about other windows.
*
* Returns: (transfer full): a #ShellApp, or NULL if none is found
*/
static ShellApp *
get_app_for_window (ShellWindowTracker *tracker,
MetaWindow *window)
{
ShellApp *result = NULL;
MetaWindow *transient_for;
const char *startup_id;
transient_for = meta_window_get_transient_for (window);
if (transient_for != NULL)
return get_app_for_window (tracker, transient_for);
/* First, we check whether we already know about this window,
* if so, just return that.
*/
if (meta_window_get_window_type (window) == META_WINDOW_NORMAL
|| meta_window_is_remote (window))
{
result = g_hash_table_lookup (tracker->window_to_app, window);
if (result != NULL)
{
g_object_ref (result);
return result;
}
}
if (meta_window_is_remote (window))
return _shell_app_new_for_window (window);
/* Check if the window has a GApplication ID attached; this is
* canonical if it does
*/
result = get_app_from_gapplication_id (window);
if (result != NULL)
return result;
/* Check if the app's WM_CLASS specifies an app; this is
* canonical if it does.
*/
result = get_app_from_window_wmclass (window);
if (result != NULL)
return result;
result = get_app_from_window_pid (tracker, window);
if (result != NULL)
return result;
/* Now we check whether we have a match through startup-notification */
startup_id = meta_window_get_startup_id (window);
if (startup_id)
{
GSList *iter, *sequences;
sequences = shell_window_tracker_get_startup_sequences (tracker);
for (iter = sequences; iter; iter = iter->next)
{
ShellStartupSequence *sequence = iter->data;
const char *id = shell_startup_sequence_get_id (sequence);
if (strcmp (id, startup_id) != 0)
continue;
result = shell_startup_sequence_get_app (sequence);
if (result)
{
result = g_object_ref (result);
break;
}
}
}
/* If we didn't get a startup-notification match, see if we matched
* any other windows in the group.
*/
if (result == NULL)
result = get_app_from_window_group (tracker, window);
/* Our last resort - we create a fake app from the window */
if (result == NULL)
result = _shell_app_new_for_window (window);
return result;
}
