gdkevents-x11.c

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  event->any.window = window;
  event->any.send_event = xevent->xany.send_event ? TRUE : FALSE;
  
  if (window_private && GDK_WINDOW_DESTROYED (window))
    {
      if (xevent->type != DestroyNotify)
	{
	  return_val = FALSE;
	  goto done;
	}
    }
  else if (filter_window)
    {
      /* Apply per-window filters */
      GdkWindowObject *filter_private = (GdkWindowObject *) filter_window;
      GdkFilterReturn result;

      if (filter_private->filters)
	{
	  g_object_ref (filter_window);
	  
	  result = gdk_event_apply_filters (xevent, event,
					    filter_private->filters);
	  
	  g_object_unref (filter_window);
      
	  if (result != GDK_FILTER_CONTINUE)
	    {
	      return_val = (result == GDK_FILTER_TRANSLATE) ? TRUE : FALSE;
	      goto done;
	    }
	}
    }
      
  if (screen_x11 && screen_x11->wmspec_check_window != None &&
      xwindow == screen_x11->wmspec_check_window)
    {
      if (xevent->type == DestroyNotify)
        {
          screen_x11->wmspec_check_window = None;
          g_free (screen_x11->window_manager_name);
          screen_x11->window_manager_name = g_strdup ("unknown");

          /* careful, reentrancy */
          _gdk_x11_screen_window_manager_changed (GDK_SCREEN (screen_x11));
        }
      
      /* Eat events on this window unless someone had wrapped
       * it as a foreign window
       */
      if (window == NULL)
	{
	  return_val = FALSE;
	  goto done;
	}
    }

  if (window &&
      (xevent->xany.type == MotionNotify ||
       xevent->xany.type == ButtonRelease))
    {
      if (_gdk_moveresize_handle_event (xevent))
	{
          return_val = FALSE;
          goto done;
        }
    }
  
  /* We do a "manual" conversion of the XEvent to a
   *  GdkEvent. The structures are mostly the same so
   *  the conversion is fairly straightforward. We also
   *  optionally print debugging info regarding events
   *  received.
   */

  return_val = TRUE;

  if (window)
    {
      _gdk_windowing_window_get_offsets (window, &xoffset, &yoffset);
    }
  else
    {
      xoffset = 0;
      yoffset = 0;
    }

  switch (xevent->type)
    {
    case KeyPress:
      if (window_private == NULL)
        {
          return_val = FALSE;
          break;
        }
      translate_key_event (display, event, xevent);
      set_user_time (window, event);
      break;

    case KeyRelease:
      if (window_private == NULL)
        {
          return_val = FALSE;
          break;
        }
      
      /* Emulate detectable auto-repeat by checking to see
       * if the next event is a key press with the same
       * keycode and timestamp, and if so, ignoring the event.
       */

      if (!display_x11->have_xkb_autorepeat && XPending (xevent->xkey.display))
	{
	  XEvent next_event;

	  XPeekEvent (xevent->xkey.display, &next_event);

	  if (next_event.type == KeyPress &&
	      next_event.xkey.keycode == xevent->xkey.keycode &&
	      next_event.xkey.time == xevent->xkey.time)
	    {
	      return_val = FALSE;
	      break;
	    }
	}

      translate_key_event (display, event, xevent);
      break;
      
    case ButtonPress:
      GDK_NOTE (EVENTS, 
		g_message ("button press:\t\twindow: %ld  x,y: %d %d  button: %d",
			   xevent->xbutton.window,
			   xevent->xbutton.x, xevent->xbutton.y,
			   xevent->xbutton.button));
      
      if (window_private == NULL || 
	  ((window_private->extension_events != 0) &&
           display_x11->input_ignore_core))
	{
	  return_val = FALSE;
	  break;
	}
      
      /* If we get a ButtonPress event where the button is 4 or 5,
	 it's a Scroll event */
      switch (xevent->xbutton.button)
        {
        case 4: /* up */
        case 5: /* down */
        case 6: /* left */
        case 7: /* right */
	  event->scroll.type = GDK_SCROLL;

          if (xevent->xbutton.button == 4)
            event->scroll.direction = GDK_SCROLL_UP;
          else if (xevent->xbutton.button == 5)
            event->scroll.direction = GDK_SCROLL_DOWN;
          else if (xevent->xbutton.button == 6)
            event->scroll.direction = GDK_SCROLL_LEFT;
          else
            event->scroll.direction = GDK_SCROLL_RIGHT;

	  event->scroll.window = window;
	  event->scroll.time = xevent->xbutton.time;
	  event->scroll.x = xevent->xbutton.x + xoffset;
	  event->scroll.y = xevent->xbutton.y + yoffset;
	  event->scroll.x_root = (gfloat)xevent->xbutton.x_root;
	  event->scroll.y_root = (gfloat)xevent->xbutton.y_root;
	  event->scroll.state = (GdkModifierType) xevent->xbutton.state;
	  event->scroll.device = display->core_pointer;

	  set_screen_from_root (display, event, xevent->xbutton.root);
	  
          break;
          
        default:
	  event->button.type = GDK_BUTTON_PRESS;
	  event->button.window = window;
	  event->button.time = xevent->xbutton.time;
	  event->button.x = xevent->xbutton.x + xoffset;
	  event->button.y = xevent->xbutton.y + yoffset;
	  event->button.x_root = (gfloat)xevent->xbutton.x_root;
	  event->button.y_root = (gfloat)xevent->xbutton.y_root;
	  event->button.axes = NULL;
	  event->button.state = (GdkModifierType) xevent->xbutton.state;
	  event->button.button = xevent->xbutton.button;
	  event->button.device = display->core_pointer;
	  
	  set_screen_from_root (display, event, xevent->xbutton.root);

	  _gdk_event_button_generate (display, event);
          break;
	}

      set_user_time (window, event);
      break;
      
    case ButtonRelease:
      GDK_NOTE (EVENTS, 
		g_message ("button release:\twindow: %ld  x,y: %d %d  button: %d",
			   xevent->xbutton.window,
			   xevent->xbutton.x, xevent->xbutton.y,
			   xevent->xbutton.button));
      
      if (window_private == NULL ||
	  ((window_private->extension_events != 0) &&
           display_x11->input_ignore_core))
	{
	  return_val = FALSE;
	  break;
	}
      
      /* We treat button presses as scroll wheel events, so ignore the release */
      if (xevent->xbutton.button == 4 || xevent->xbutton.button == 5 ||
          xevent->xbutton.button == 6 || xevent->xbutton.button ==7)
	{
	  return_val = FALSE;
	  break;
	}

      event->button.type = GDK_BUTTON_RELEASE;
      event->button.window = window;
      event->button.time = xevent->xbutton.time;
      event->button.x = xevent->xbutton.x + xoffset;
      event->button.y = xevent->xbutton.y + yoffset;
      event->button.x_root = (gfloat)xevent->xbutton.x_root;
      event->button.y_root = (gfloat)xevent->xbutton.y_root;
      event->button.axes = NULL;
      event->button.state = (GdkModifierType) xevent->xbutton.state;
      event->button.button = xevent->xbutton.button;
      event->button.device = display->core_pointer;

      set_screen_from_root (display, event, xevent->xbutton.root);
      
      break;
      
    case MotionNotify:
      GDK_NOTE (EVENTS,
		g_message ("motion notify:\t\twindow: %ld  x,y: %d %d  hint: %s", 
			   xevent->xmotion.window,
			   xevent->xmotion.x, xevent->xmotion.y,
			   (xevent->xmotion.is_hint) ? "true" : "false"));
      
      if (window_private == NULL ||
	  ((window_private->extension_events != 0) &&
           display_x11->input_ignore_core))
	{
	  return_val = FALSE;
	  break;
	}
      
      event->motion.type = GDK_MOTION_NOTIFY;
      event->motion.window = window;
      event->motion.time = xevent->xmotion.time;
      event->motion.x = xevent->xmotion.x + xoffset;
      event->motion.y = xevent->xmotion.y + yoffset;
      event->motion.x_root = (gfloat)xevent->xmotion.x_root;
      event->motion.y_root = (gfloat)xevent->xmotion.y_root;
      event->motion.axes = NULL;
      event->motion.state = (GdkModifierType) xevent->xmotion.state;
      event->motion.is_hint = xevent->xmotion.is_hint;
      event->motion.device = display->core_pointer;
      
      set_screen_from_root (display, event, xevent->xmotion.root);
      
      break;
      
    case EnterNotify:
      GDK_NOTE (EVENTS,
		g_message ("enter notify:\t\twindow: %ld  detail: %d subwin: %ld",
			   xevent->xcrossing.window,
			   xevent->xcrossing.detail,
			   xevent->xcrossing.subwindow));
 
      if (window_private == NULL)
        {
          return_val = FALSE;
          break;
        }
      
      /* Handle focusing (in the case where no window manager is running */
      if (toplevel && xevent->xcrossing.detail != NotifyInferior)
	{
	  toplevel->has_pointer = TRUE;

	  if (xevent->xcrossing.focus && !toplevel->has_focus_window)
	    {
	      gboolean had_focus = HAS_FOCUS (toplevel);
	      
	      toplevel->has_pointer_focus = TRUE;
	      
	      if (HAS_FOCUS (toplevel) != had_focus)
		generate_focus_event (window, TRUE);
	    }
	}

      /* Tell XInput stuff about it if appropriate */
      if (window_private &&
	  !GDK_WINDOW_DESTROYED (window) &&
	  window_private->extension_events != 0)
	_gdk_input_enter_event (&xevent->xcrossing, window);
      
      event->crossing.type = GDK_ENTER_NOTIFY;
      event->crossing.window = window;
      
      /* If the subwindow field of the XEvent is non-NULL, then
       *  lookup the corresponding GdkWindow.
       */
      if (xevent->xcrossing.subwindow != None)
	event->crossing.subwindow = gdk_window_lookup_for_display (display, xevent->xcrossing.subwindow);
      else
	event->crossing.subwindow = NULL;
      
      event->crossing.time = xevent->xcrossing.time;
      event->crossing.x = xevent->xcrossing.x + xoffset;
      event->crossing.y = xevent->xcrossing.y + yoffset;
      event->crossing.x_root = xevent->xcrossing.x_root;
      event->crossing.y_root = xevent->xcrossing.y_root;
      
      set_screen_from_root (display, event, xevent->xcrossing.root);
      
      /* Translate the crossing mode into Gdk terms.
       */
      switch (xevent->xcrossing.mode)
	{
	case NotifyNormal:
	  event->crossing.mode = GDK_CROSSING_NORMAL;
	  break;
	case NotifyGrab:
	  event->crossing.mode = GDK_CROSSING_GRAB;
	  break;
	case NotifyUngrab:
	  event->crossing.mode = GDK_CROSSING_UNGRAB;
	  break;
	};
      
      /* Translate the crossing detail into Gdk terms.
       */
      switch (xevent->xcrossing.detail)
	{
	case NotifyInferior:
	  event->crossing.detail = GDK_NOTIFY_INFERIOR;
	  break;
	case NotifyAncestor:
	  event->crossing.detail = GDK_NOTIFY_ANCESTOR;
	  break;
	case NotifyVirtual:
	  event->crossing.detail = GDK_NOTIFY_VIRTUAL;
	  break;
	case NotifyNonlinear:
	  event->crossing.detail = GDK_NOTIFY_NONLINEAR;
	  break;
	case NotifyNonlinearVirtual:
	  event->crossing.detail = GDK_NOTIFY_NONLINEAR_VIRTUAL;
	  break;
	default:
	  event->crossing.detail = GDK_NOTIFY_UNKNOWN;
	  break;
	}
      
      event->crossing.focus = xevent->xcrossing.focus;
      event->crossing.state = xevent->xcrossing.state;
  
      break;
      
    case LeaveNotify:
      GDK_NOTE (EVENTS, 
		g_message ("leave notify:\t\twindow: %ld  detail: %d subwin: %ld",
			   xevent->xcrossing.window,
			   xevent->xcrossing.detail, xevent->xcrossing.subwindow));

      if (window_private == NULL)
        {
          return_val = FALSE;
          break;
        }
      
      /* Handle focusing (in the case where no window manager is running */
      if (toplevel && xevent->xcrossing.detail != NotifyInferior)
	{
	  toplevel->has_pointer = FALSE;

	  if (xevent->xcrossing.focus && !toplevel->has_focus_window)
	    {
	      gboolean had_focus = HAS_FOCUS (toplevel);
	      
	      toplevel->has_pointer_focus = FALSE;
	      
	      if (HAS_FOCUS (toplevel) != had_focus)
		generate_focus_event (window, FALSE);
	    }
	}

      event->crossing.type = GDK_LEAVE_NOTIFY;
      event->crossing.window = window;
      
      /* If the subwindow field of the XEvent is non-NULL, then
       *  lookup the corresponding GdkWindow.
       */
      if (xevent->xcrossing.subwindow != None)
	event->crossing.subwindow = gdk_window_lookup_for_display (display, xevent->xcrossing.subwindow);
      else
	event->crossing.subwindow = NULL;
      
      event->crossing.time = xevent->xcrossing.time;
      event->crossing.x = xevent->xcrossing.x + xoffset;
      event->crossing.y = xevent->xcrossing.y + yoffset;
      event->crossing.x_root = xevent->xcrossing.x_root;
      event->crossing.y_root = xevent->xcrossing.y_root;
      
      set_screen_from_root (display, event, xevent->xcrossing.root);
      
      /* Translate the crossing mode into Gdk terms.
       */
      switch (xevent->xcrossing.mode)
	{
	case NotifyNormal:
	  event->crossing.mode = GDK_CROSSING_NORMAL;
	  break;
	case NotifyGrab:
	  event->crossing.mode = GDK_CROSSING_GRAB;
	  break;
	case NotifyUngrab:
	  event->crossing.mode = GDK_CROSSING_UNGRAB;
	  break;
	};
      
      /* Translate the crossing detail into Gdk terms.
       */
      switch (xevent->xcrossing.detail)
	{
	case NotifyInferior:
	  event->crossing.detail = GDK_NOTIFY_INFERIOR;
	  break;
	case NotifyAncestor:
	  event->crossing.detail = GDK_NOTIFY_ANCESTOR;
	  break;
	case NotifyVirtual:
	  event->crossing.detail = GDK_NOTIFY_VIRTUAL;
	  break;
	case NotifyNonlinear:
	  event->crossing.detail = GDK_NOTIFY_NONLINEAR;
	  break;
	case NotifyNonlinearVirtual:
	  event->crossing.detail = GDK_NOTIFY_NONLINEAR_VIRTUAL;
	  break;
	default:
	  event->crossing.detail = GDK_NOTIFY_UNKNOWN;
	  break;
	}
      
      event->crossing.focus = xevent->xcrossing.focus;
      event->crossing.state = xevent->xcrossing.state;
      
      break;
      
      /* We only care about focus events that indicate that _this_
       * window (not a ancestor or child) got or lost the focus
       */
    case FocusIn:
      GDK_NOTE (EVENTS,
		g_message ("focus in:\t\twindow: %ld, detail: %s, mode: %s",
			   xevent->xfocus.window,
			   notify_details[xevent->xfocus.detail],
			   notify_modes[xevent->xfocus.mode]));
      
      if (toplevel)
	{