Пример #1
0
static gboolean
meta_display_handle_event (MetaDisplay        *display,
                           const ClutterEvent *event)
{
  MetaWindow *window;
  gboolean bypass_clutter = FALSE;
  G_GNUC_UNUSED gboolean bypass_wayland = FALSE;
  MetaGestureTracker *tracker;
  ClutterEventSequence *sequence;
  ClutterInputDevice *source;

  sequence = clutter_event_get_event_sequence (event);

  /* Set the pointer emulating sequence on touch begin, if eligible */
  if (event->type == CLUTTER_TOUCH_BEGIN)
    {
      if (sequence_is_pointer_emulated (display, event))
        {
          /* This is the new pointer emulating sequence */
          display->pointer_emulating_sequence = sequence;
        }
      else if (display->pointer_emulating_sequence == sequence)
        {
          /* This sequence was "pointer emulating" in a prior incarnation,
           * but now it isn't. We unset the pointer emulating sequence at
           * this point so the current sequence is not mistaken as pointer
           * emulating, while we've ensured that it's been deemed
           * "pointer emulating" throughout all of the event processing
           * of the previous incarnation.
           */
          display->pointer_emulating_sequence = NULL;
        }
    }

#ifdef HAVE_WAYLAND
  MetaWaylandCompositor *compositor = NULL;
  if (meta_is_wayland_compositor ())
    {
      compositor = meta_wayland_compositor_get_default ();
      meta_wayland_compositor_update (compositor, event);
    }
#endif

  if (!display->current_pad_osd &&
      (event->type == CLUTTER_PAD_BUTTON_PRESS ||
       event->type == CLUTTER_PAD_BUTTON_RELEASE))
    {
      MetaBackend *backend = meta_get_backend ();

      if (meta_input_settings_handle_pad_button (meta_backend_get_input_settings (backend),
                                                 clutter_event_get_source_device (event),
                                                 event->type == CLUTTER_PAD_BUTTON_PRESS,
                                                 event->pad_button.button))
        {
          bypass_wayland = bypass_clutter = TRUE;
          goto out;
        }
    }

  source = clutter_event_get_source_device (event);

  if (source)
    {
      meta_backend_update_last_device (meta_get_backend (),
                                       clutter_input_device_get_device_id (source));
    }

#ifdef HAVE_WAYLAND
  if (meta_is_wayland_compositor () && event->type == CLUTTER_MOTION)
    {
      MetaWaylandCompositor *compositor;

      compositor = meta_wayland_compositor_get_default ();

      if (meta_wayland_tablet_manager_consumes_event (compositor->tablet_manager, event))
        {
          meta_wayland_tablet_manager_update_cursor_position (compositor->tablet_manager, event);
        }
      else
        {
          MetaCursorTracker *tracker = meta_cursor_tracker_get_for_screen (NULL);
          meta_cursor_tracker_update_position (tracker, event->motion.x, event->motion.y);
        }

      display->monitor_cache_invalidated = TRUE;
    }
#endif

  handle_idletime_for_event (event);

  window = get_window_for_event (display, event);

  display->current_time = event->any.time;

  if (window && !window->override_redirect &&
      (event->type == CLUTTER_KEY_PRESS ||
       event->type == CLUTTER_BUTTON_PRESS ||
       event->type == CLUTTER_TOUCH_BEGIN))
    {
      if (CurrentTime == display->current_time)
        {
          /* We can't use missing (i.e. invalid) timestamps to set user time,
           * nor do we want to use them to sanity check other timestamps.
           * See bug 313490 for more details.
           */
          meta_warning ("Event has no timestamp! You may be using a broken "
                        "program such as xse.  Please ask the authors of that "
                        "program to fix it.\n");
        }
      else
        {
          meta_window_set_user_time (window, display->current_time);
          meta_display_sanity_check_timestamps (display, display->current_time);
        }
    }

  tracker = meta_display_get_gesture_tracker (display);

  if (meta_gesture_tracker_handle_event (tracker, event))
    {
      bypass_wayland = bypass_clutter = TRUE;
      goto out;
    }

  if (display->event_route == META_EVENT_ROUTE_WINDOW_OP)
    {
      if (meta_window_handle_mouse_grab_op_event (window, event))
        {
          bypass_clutter = TRUE;
          bypass_wayland = TRUE;
          goto out;
        }
    }

  /* For key events, it's important to enforce single-handling, or
   * we can get into a confused state. So if a keybinding is
   * handled (because it's one of our hot-keys, or because we are
   * in a keyboard-grabbed mode like moving a window, we don't
   * want to pass the key event to the compositor or Wayland at all.
   */
  if (meta_keybindings_process_event (display, window, event))
    {
      bypass_clutter = TRUE;
      bypass_wayland = TRUE;
      goto out;
    }

  /* Do not pass keyboard events to Wayland if key focus is not on the
   * stage in normal mode (e.g. during keynav in the panel)
   */
  if (display->event_route == META_EVENT_ROUTE_NORMAL)
    {
      if (IS_KEY_EVENT (event) && !stage_has_key_focus ())
        {
          bypass_wayland = TRUE;
          goto out;
        }
    }

  if (display->current_pad_osd)
    {
      bypass_wayland = TRUE;
      goto out;
    }

  if (window)
    {
      /* Events that are likely to trigger compositor gestures should
       * be known to clutter so they can propagate along the hierarchy.
       * Gesture-wise, there's two groups of events we should be getting
       * here:
       * - CLUTTER_TOUCH_* with a touch sequence that's not yet accepted
       *   by the gesture tracker, these might trigger gesture actions
       *   into recognition. Already accepted touch sequences are handled
       *   directly by meta_gesture_tracker_handle_event().
       * - CLUTTER_TOUCHPAD_* events over windows. These can likewise
       *   trigger ::captured-event handlers along the way.
       */
      bypass_clutter = !IS_GESTURE_EVENT (event);

      meta_window_handle_ungrabbed_event (window, event);

      /* This might start a grab op. If it does, then filter out the
       * event, and if it doesn't, replay the event to release our
       * own sync grab. */

      if (display->event_route == META_EVENT_ROUTE_WINDOW_OP ||
          display->event_route == META_EVENT_ROUTE_FRAME_BUTTON)
        {
          bypass_clutter = TRUE;
          bypass_wayland = TRUE;
        }
      else
        {
          /* Only replay button press events, since that's where we
           * have the synchronous grab. */
          if (event->type == CLUTTER_BUTTON_PRESS)
            {
              MetaBackend *backend = meta_get_backend ();
              if (META_IS_BACKEND_X11 (backend))
                {
                  Display *xdisplay = meta_backend_x11_get_xdisplay (META_BACKEND_X11 (backend));
                  meta_verbose ("Allowing events time %u\n",
                                (unsigned int)event->button.time);
                  XIAllowEvents (xdisplay, clutter_event_get_device_id (event),
                                 XIReplayDevice, event->button.time);
                }
            }
        }

      goto out;
    }

 out:
  /* If the compositor has a grab, don't pass that through to Wayland */
  if (display->event_route == META_EVENT_ROUTE_COMPOSITOR_GRAB)
    bypass_wayland = TRUE;

  /* If a Wayland client has a grab, don't pass that through to Clutter */
  if (display->event_route == META_EVENT_ROUTE_WAYLAND_POPUP)
    bypass_clutter = TRUE;

#ifdef HAVE_WAYLAND
  if (compositor && !bypass_wayland)
    {
      if (meta_wayland_compositor_handle_event (compositor, event))
        bypass_clutter = TRUE;
    }
#endif

  display->current_time = CurrentTime;
  return bypass_clutter;
}
Пример #2
0
static gboolean
meta_display_handle_event (MetaDisplay        *display,
                           const ClutterEvent *event)
{
  MetaWindow *window;
  gboolean bypass_clutter = FALSE;
  G_GNUC_UNUSED gboolean bypass_wayland = FALSE;
  MetaGestureTracker *tracker;
  ClutterEventSequence *sequence;

  sequence = clutter_event_get_event_sequence (event);

  /* Set the pointer emulating sequence on touch begin, if eligible */
  if (event->type == CLUTTER_TOUCH_BEGIN &&
      !display->pointer_emulating_sequence &&
      sequence_is_pointer_emulated (display, event))
    display->pointer_emulating_sequence = sequence;

#ifdef HAVE_WAYLAND
  MetaWaylandCompositor *compositor = NULL;
  if (meta_is_wayland_compositor ())
    {
      compositor = meta_wayland_compositor_get_default ();
      meta_wayland_compositor_update (compositor, event);
    }
#endif

  if (meta_is_wayland_compositor () && event->type == CLUTTER_MOTION)
    {
      MetaCursorTracker *tracker = meta_cursor_tracker_get_for_screen (NULL);
      meta_cursor_tracker_update_position (tracker, event->motion.x, event->motion.y);
    }

  handle_idletime_for_event (event);

  window = get_window_for_event (display, event);

  display->current_time = event->any.time;

  if (window && !window->override_redirect &&
      (event->type == CLUTTER_KEY_PRESS ||
       event->type == CLUTTER_BUTTON_PRESS ||
       event->type == CLUTTER_TOUCH_BEGIN))
    {
      if (CurrentTime == display->current_time)
        {
          /* We can't use missing (i.e. invalid) timestamps to set user time,
           * nor do we want to use them to sanity check other timestamps.
           * See bug 313490 for more details.
           */
          meta_warning ("Event has no timestamp! You may be using a broken "
                        "program such as xse.  Please ask the authors of that "
                        "program to fix it.\n");
        }
      else
        {
          meta_window_set_user_time (window, display->current_time);
          meta_display_sanity_check_timestamps (display, display->current_time);
        }
    }

  tracker = meta_display_get_gesture_tracker (display);

  if (meta_gesture_tracker_handle_event (tracker, event))
    {
      bypass_wayland = bypass_clutter = TRUE;
      goto out;
    }

  if (display->event_route == META_EVENT_ROUTE_WINDOW_OP)
    {
      if (meta_window_handle_mouse_grab_op_event (window, event))
        {
          bypass_clutter = TRUE;
          bypass_wayland = TRUE;
          goto out;
        }
    }

  /* For key events, it's important to enforce single-handling, or
   * we can get into a confused state. So if a keybinding is
   * handled (because it's one of our hot-keys, or because we are
   * in a keyboard-grabbed mode like moving a window, we don't
   * want to pass the key event to the compositor or Wayland at all.
   */
  if (meta_keybindings_process_event (display, window, event))
    {
      bypass_clutter = TRUE;
      bypass_wayland = TRUE;
      goto out;
    }

  if (window)
    {
      if (!clutter_event_get_event_sequence (event))
        {
          /* Swallow all non-touch events on windows that come our way.
           * Touch events that reach here aren't yet in an accepted state,
           * so Clutter must see them to maybe trigger gestures into
           * recognition.
           */
          bypass_clutter = TRUE;
        }

      meta_window_handle_ungrabbed_event (window, event);

      /* This might start a grab op. If it does, then filter out the
       * event, and if it doesn't, replay the event to release our
       * own sync grab. */

      if (display->event_route == META_EVENT_ROUTE_WINDOW_OP)
        {
          bypass_clutter = TRUE;
          bypass_wayland = TRUE;
        }
      else
        {
          /* Only replay button press events, since that's where we
           * have the synchronous grab. */
          if (event->type == CLUTTER_BUTTON_PRESS)
            {
              MetaBackend *backend = meta_get_backend ();
              if (META_IS_BACKEND_X11 (backend))
                {
                  Display *xdisplay = meta_backend_x11_get_xdisplay (META_BACKEND_X11 (backend));
                  meta_verbose ("Allowing events time %u\n",
                                (unsigned int)event->button.time);
                  XIAllowEvents (xdisplay, clutter_event_get_device_id (event),
                                 XIReplayDevice, event->button.time);
                }
            }
        }

      goto out;
    }

 out:
  /* If the compositor has a grab, don't pass that through to Wayland */
  if (display->event_route == META_EVENT_ROUTE_COMPOSITOR_GRAB)
    bypass_wayland = TRUE;

  /* If a Wayland client has a grab, don't pass that through to Clutter */
  if (display->event_route == META_EVENT_ROUTE_WAYLAND_POPUP)
    bypass_clutter = TRUE;

#ifdef HAVE_WAYLAND
  if (compositor && !bypass_wayland)
    {
      if (meta_wayland_compositor_handle_event (compositor, event))
        bypass_clutter = TRUE;
    }
#endif

  /* Unset the pointer emulating sequence after its end event is processed */
  if (event->type == CLUTTER_TOUCH_END &&
      display->pointer_emulating_sequence == sequence)
    display->pointer_emulating_sequence = NULL;

  display->current_time = CurrentTime;
  return bypass_clutter;
}