idle-monitor: Postpone dispatching of idle timeout if not ready

If we update the ready time while the source is already in the
to-dispatch list, changing the ready time doesn't have any effect, and
the source will still be dispatched. This could cause incorrect idle
watch firing causing the power management plugin in
gnome-settings-daemon to sometimes turn off monitors due to it believing
the user had been idle for some time, while in fact, they just logged
back in.

Fix this by not actually dispatching the idle timeout if the ready time
is in the future when actually dispatching.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/543


(cherry picked from commit 1ca0fdc928)

clutter/clutter/evdev/clutter-input-device-evdev.c

@@ -855,6 +855,14 @@ emulate_pointer_motion (ClutterInputDeviceEvdev *device,
   clutter_virtual_input_device_notify_relative_motion (device->mousekeys_virtual_device,
                                                        time_us, dx_motion, dy_motion);
 }
+static gboolean
+is_numlock_active (ClutterInputDeviceEvdev *device)
+{
+  ClutterSeatEvdev *seat = device->seat;
+  return xkb_state_mod_name_is_active (seat->xkb,
+                                       "Mod2",
+                                       XKB_STATE_MODS_LOCKED);
+}
 
 static void
 enable_mousekeys (ClutterInputDeviceEvdev *device)
@@ -1013,6 +1021,10 @@ handle_mousekeys_press (ClutterEvent            *event,
   if (!(event->key.flags & CLUTTER_EVENT_FLAG_SYNTHETIC))
     stop_mousekeys_move (device);
 
+  /* Do not handle mousekeys if NumLock is ON */
+  if (is_numlock_active (device))
+    return FALSE;
+
   /* Button selection */
   switch (event->key.keyval)
     {
@@ -1084,6 +1096,10 @@ static gboolean
 handle_mousekeys_release (ClutterEvent            *event,
                           ClutterInputDeviceEvdev *device)
 {
+  /* Do not handle mousekeys if NumLock is ON */
+  if (is_numlock_active (device))
+    return FALSE;
+
   switch (event->key.keyval)
     {
     case XKB_KEY_KP_0:

clutter/clutter/x11/clutter-backend-x11.c

@@ -54,6 +54,7 @@
 #include "clutter-main.h"
 #include "clutter-private.h"
 #include "clutter-settings-private.h"
+#include "clutter-xkb-a11y-x11.h"
 
 G_DEFINE_TYPE (ClutterBackendX11, clutter_backend_x11, CLUTTER_TYPE_BACKEND)
 
@@ -276,6 +277,20 @@ clutter_backend_x11_create_device_manager (ClutterBackendX11 *backend_x11)
   _clutter_backend_add_event_translator (backend, translator);
 }
 
+static void
+on_keymap_state_change (ClutterKeymapX11 *keymap_x11,
+                        gpointer          data)
+{
+  ClutterDeviceManager *device_manager = CLUTTER_DEVICE_MANAGER (data);
+  ClutterKbdA11ySettings kbd_a11y_settings;
+
+  /* On keymaps state change, just reapply the current settings, it'll
+   * take care of enabling/disabling mousekeys based on NumLock state.
+   */
+  clutter_device_manager_get_kbd_a11y_settings (device_manager, &kbd_a11y_settings);
+  clutter_device_manager_x11_apply_kbd_a11y_settings (device_manager, &kbd_a11y_settings);
+}
+
 static void
 clutter_backend_x11_create_keymap (ClutterBackendX11 *backend_x11)
 {
@@ -292,6 +307,11 @@ clutter_backend_x11_create_keymap (ClutterBackendX11 *backend_x11)
       backend = CLUTTER_BACKEND (backend_x11);
       translator = CLUTTER_EVENT_TRANSLATOR (backend_x11->keymap);
       _clutter_backend_add_event_translator (backend, translator);
+
+      g_signal_connect (backend_x11->keymap,
+                        "state-changed",
+                        G_CALLBACK (on_keymap_state_change),
+                        backend->device_manager);
     }
 }
 

clutter/clutter/x11/clutter-xkb-a11y-x11.c

@@ -241,8 +241,13 @@ clutter_device_manager_x11_apply_kbd_a11y_settings (ClutterDeviceManager   *devi
     }
 
   /* mouse keys */
-  if (set_xkb_ctrl (desc, kbd_a11y_settings->controls,
-                    CLUTTER_A11Y_MOUSE_KEYS_ENABLED, XkbMouseKeysMask | XkbMouseKeysAccelMask))
+  if (clutter_keymap_get_num_lock_state (CLUTTER_KEYMAP (backend_x11->keymap)))
+    {
+      /* Disable mousekeys when NumLock is ON */
+      desc->ctrls->enabled_ctrls &= ~(XkbMouseKeysMask | XkbMouseKeysAccelMask);
+    }
+  else if (set_xkb_ctrl (desc, kbd_a11y_settings->controls,
+                         CLUTTER_A11Y_MOUSE_KEYS_ENABLED, XkbMouseKeysMask | XkbMouseKeysAccelMask))
     {
       gint mk_max_speed;
       gint mk_accel_time;

src/backends/meta-idle-monitor.c

@@ -316,6 +316,13 @@ idle_monitor_dispatch_timeout (GSource     *source,
                                gpointer     user_data)
 {
   MetaIdleMonitorWatch *watch = (MetaIdleMonitorWatch *) user_data;
+  int64_t now;
+  int64_t ready_time;
+
+  now = g_source_get_time (source);
+  ready_time = g_source_get_ready_time (source);
+  if (ready_time > now)
+    return G_SOURCE_CONTINUE;
 
   _meta_idle_monitor_watch_fire (watch);
   g_source_set_ready_time (watch->timeout_source, -1);

src/backends/meta-input-settings.c

@@ -1216,7 +1216,7 @@ load_keyboard_a11y_settings (MetaInputSettings  *input_settings,
                              ClutterInputDevice *device)
 {
   MetaInputSettingsPrivate *priv = meta_input_settings_get_instance_private (input_settings);
-  ClutterKbdA11ySettings kbd_a11y_settings;
+  ClutterKbdA11ySettings kbd_a11y_settings = { 0 };
   ClutterInputDevice *core_keyboard;
   guint i;
 

src/compositor/compositor-private.h

@@ -18,6 +18,9 @@ struct _MetaCompositor
   guint           pre_paint_func_id;
   guint           post_paint_func_id;
 
+  guint           stage_presented_id;
+  guint           stage_after_paint_id;
+
   gint64          server_time_query_time;
   gint64          server_time_offset;
 

src/compositor/compositor.c

@@ -92,6 +92,10 @@ on_presented (ClutterStage     *stage,
               ClutterFrameInfo *frame_info,
               MetaCompositor   *compositor);
 
+static void
+on_top_window_actor_destroyed (MetaWindowActor *window_actor,
+                               MetaCompositor  *compositor);
+
 static gboolean
 is_modal (MetaDisplay *display)
 {
@@ -131,9 +135,31 @@ meta_switch_workspace_completed (MetaCompositor *compositor)
 void
 meta_compositor_destroy (MetaCompositor *compositor)
 {
+  g_signal_handler_disconnect (compositor->stage,
+                               compositor->stage_after_paint_id);
+  g_signal_handler_disconnect (compositor->stage,
+                               compositor->stage_presented_id);
+
+  compositor->stage_after_paint_id = 0;
+  compositor->stage_presented_id = 0;
+  compositor->stage = NULL;
+
   clutter_threads_remove_repaint_func (compositor->pre_paint_func_id);
   clutter_threads_remove_repaint_func (compositor->post_paint_func_id);
 
+  if (compositor->top_window_actor)
+    {
+      g_signal_handlers_disconnect_by_func (compositor->top_window_actor,
+                                            on_top_window_actor_destroyed,
+                                            compositor);
+      compositor->top_window_actor = NULL;
+    }
+
+  g_clear_pointer (&compositor->window_group, clutter_actor_destroy);
+  g_clear_pointer (&compositor->top_window_group, clutter_actor_destroy);
+  g_clear_pointer (&compositor->feedback_group, clutter_actor_destroy);
+  g_clear_pointer (&compositor->windows, g_list_free);
+
   if (compositor->have_x11_sync_object)
     meta_sync_ring_destroy ();
 }
@@ -503,9 +529,10 @@ meta_compositor_manage (MetaCompositor *compositor)
 
   compositor->stage = meta_backend_get_stage (backend);
 
-  g_signal_connect (compositor->stage, "presented",
-                    G_CALLBACK (on_presented),
-                    compositor);
+  compositor->stage_presented_id =
+    g_signal_connect (compositor->stage, "presented",
+                      G_CALLBACK (on_presented),
+                                                     compositor);
 
   /* We use connect_after() here to accomodate code in GNOME Shell that,
    * when benchmarking drawing performance, connects to ::after-paint
@@ -515,8 +542,9 @@ meta_compositor_manage (MetaCompositor *compositor)
    * connections to ::after-paint, connect() vs. connect_after() doesn't
    * matter.
    */
-  g_signal_connect_after (CLUTTER_STAGE (compositor->stage), "after-paint",
-                          G_CALLBACK (after_stage_paint), compositor);
+  compositor->stage_after_paint_id =
+    g_signal_connect_after (compositor->stage, "after-paint",
+                            G_CALLBACK (after_stage_paint), compositor);
 
   clutter_stage_set_sync_delay (CLUTTER_STAGE (compositor->stage), META_SYNC_DELAY);