static void
shell_window_tracker_on_n_workspaces_changed (MetaScreen *screen,
GParamSpec *pspec,
gpointer user_data)
{
ShellWindowTracker *self = SHELL_WINDOW_TRACKER (user_data);
GList *workspaces, *iter;
workspaces = meta_screen_get_workspaces (screen);
for (iter = workspaces; iter; iter = iter->next)
{
MetaWorkspace *workspace = iter->data;
/* This pair of disconnect/connect is idempotent if we were
* already connected, while ensuring we get connected for
* new workspaces.
*/
g_signal_handlers_disconnect_by_func (workspace,
shell_window_tracker_on_window_added,
self);
g_signal_handlers_disconnect_by_func (workspace,
shell_window_tracker_on_window_removed,
self);
g_signal_connect (workspace, "window-added",
G_CALLBACK (shell_window_tracker_on_window_added), self);
g_signal_connect (workspace, "window-removed",
G_CALLBACK (shell_window_tracker_on_window_removed), self);
}
}
static void meta_switcher_dispose(GObject *object)
{
MetaSwitcher *switcher = META_SWITCHER(object);
MetaSwitcherPrivate* priv = switcher->priv;
if (priv->disposed) return;
priv->disposed = TRUE;
MetaScreen* screen = meta_plugin_get_screen(priv->plugin);
ClutterActor* stage = meta_get_stage_for_screen(screen);
clutter_actor_remove_child(stage, priv->top);
if (priv->modaled) {
meta_plugin_end_modal(priv->plugin, clutter_get_current_event_time());
meta_enable_unredirect_for_screen(screen);
if (priv->selected_id < 0 && priv->previous_focused)
clutter_stage_set_key_focus(CLUTTER_STAGE(stage), priv->previous_focused);
}
if (CLUTTER_IS_ACTOR(priv->top)) {
g_clear_pointer(&priv->top, clutter_actor_destroy);
} else priv->top = NULL;
if (priv->autoclose_id) {
g_source_remove(priv->autoclose_id);
priv->autoclose_id = 0;
}
GList* ws_list = meta_screen_get_workspaces(screen);
g_list_foreach(ws_list, (GFunc)unhook_ws_event, switcher);
G_OBJECT_CLASS(meta_switcher_parent_class)->dispose(object);
}
static void meta_switcher_present_list(MetaSwitcher* self)
{
MetaSwitcherPrivate* priv = self->priv;
MetaScreen* screen = meta_plugin_get_screen(priv->plugin);
MetaDisplay* display = meta_screen_get_display(screen);
// windows on all workspaces
GList* ls = meta_display_get_tab_list(display, META_TAB_LIST_NORMAL, NULL);
if (!ls) return;
GList* ws_list = meta_screen_get_workspaces(screen);
g_list_foreach(ws_list, (GFunc)hook_ws_event, self);
if (!priv->apps) {
priv->apps = g_ptr_array_new();
GList* orig = ls;
while (ls) {
g_ptr_array_add(priv->apps, ls->data);
ls = ls->next;
}
g_list_free(orig);
}
clutter_actor_set_height(priv->top, APP_ACTOR_HEIGHT + 20);
gint x = 0, y = 0;
for (int i = 0; i < priv->apps->len; i++) {
_add_app(self, g_ptr_array_index(priv->apps, i), &x, &y);
}
clutter_actor_set_margin_left(g_hash_table_lookup(priv->icons, g_ptr_array_index(priv->apps, 0)), 10);
clutter_actor_set_margin_right(g_hash_table_lookup(priv->icons, g_ptr_array_index(priv->apps, priv->apps->len-1)), 10);
gint screen_width = 0, screen_height = 0;
meta_screen_get_size(screen, &screen_width, &screen_height);
/* TODO: @sonald set top width when bigger than screen width */
if (clutter_actor_get_width(priv->top) > screen_width)
clutter_actor_set_width(priv->top, screen_width);
gfloat w = clutter_actor_get_width(priv->top), h = clutter_actor_get_height(priv->top),
tx = (screen_width - w) / 2, ty = (screen_height - h) / 2;
#if DEBUG
g_message("%s, line %d, %f %f", __func__, __LINE__, w, tx);
#endif
clutter_actor_set_position(priv->top, tx, ty);
ClutterContent* canvas = clutter_canvas_new();
clutter_canvas_set_size(CLUTTER_CANVAS(canvas), w, h);
clutter_actor_set_content(priv->top, canvas);
g_object_unref(canvas);
g_signal_connect(canvas, "draw", G_CALLBACK(on_switcher_background_draw), self);
clutter_content_invalidate(canvas);
priv->selected_id = 0;
}
static void
load_initial_windows (ShellWindowTracker *monitor)
{
GList *workspaces, *iter;
MetaScreen *screen = shell_global_get_screen (shell_global_get ());
workspaces = meta_screen_get_workspaces (screen);
for (iter = workspaces; iter; iter = iter->next)
{
MetaWorkspace *workspace = iter->data;
GList *windows = meta_workspace_list_windows (workspace);
GList *window_iter;
for (window_iter = windows; window_iter; window_iter = window_iter->next)
{
MetaWindow *window = window_iter->data;
track_window (monitor, window);
}
g_list_free (windows);
}
}