[gtk+/events-refactor: 327/1085] Make GdkDisplayX11 implement GdkEventTranslator.



commit e897167a862ea5a8cb909b020f7e252006ecfc06
Author: Carlos Garnacho <carlosg gnome org>
Date:   Sat May 30 14:42:12 2009 +0200

    Make GdkDisplayX11 implement GdkEventTranslator.
    
    * Code was ripped out from gdkevents-x11.c to handle events related to
    displays/screens/windows.

 gdk/x11/gdkdisplay-x11.c |  840 +++++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 839 insertions(+), 1 deletions(-)
---
diff --git a/gdk/x11/gdkdisplay-x11.c b/gdk/x11/gdkdisplay-x11.c
index 735ac57..98d8d3c 100644
--- a/gdk/x11/gdkdisplay-x11.c
+++ b/gdk/x11/gdkdisplay-x11.c
@@ -33,6 +33,7 @@
 #include "gdkx.h"
 #include "gdkdisplay.h"
 #include "gdkdisplay-x11.h"
+#include "gdkeventtranslator.h"
 #include "gdkscreen.h"
 #include "gdkscreen-x11.h"
 #include "gdkinternals.h"
@@ -68,6 +69,13 @@
 static void   gdk_display_x11_dispose            (GObject            *object);
 static void   gdk_display_x11_finalize           (GObject            *object);
 
+static void     gdk_display_x11_event_translator_init (GdkEventTranslatorIface *iface);
+
+static gboolean gdk_display_x11_translate_event (GdkEventTranslator *translator,
+                                                 GdkDisplay         *display,
+                                                 GdkEvent           *event,
+                                                 XEvent             *xevent);
+
 #ifdef HAVE_X11R6
 static void gdk_internal_connection_watch (Display  *display,
 					   XPointer  arg,
@@ -119,7 +127,10 @@ static const char *const precache_atoms[] = {
   "_NET_VIRTUAL_ROOTS"
 };
 
-G_DEFINE_TYPE (GdkDisplayX11, _gdk_display_x11, GDK_TYPE_DISPLAY)
+G_DEFINE_TYPE_WITH_CODE (GdkDisplayX11, _gdk_display_x11, GDK_TYPE_DISPLAY,
+                         G_IMPLEMENT_INTERFACE (GDK_TYPE_EVENT_TRANSLATOR,
+                                                gdk_display_x11_event_translator_init))
+
 
 static void
 _gdk_display_x11_class_init (GdkDisplayX11Class * class)
@@ -135,6 +146,833 @@ _gdk_display_x11_init (GdkDisplayX11 *display)
 {
 }
 
+static void
+gdk_display_x11_event_translator_init (GdkEventTranslatorIface *iface)
+{
+  iface->translate_event = gdk_display_x11_translate_event;
+}
+
+static void
+do_net_wm_state_changes (GdkWindow *window)
+{
+  GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (window);
+  GdkWindowState old_state;
+
+  if (GDK_WINDOW_DESTROYED (window) ||
+      gdk_window_get_window_type (window) != GDK_WINDOW_TOPLEVEL)
+    return;
+
+  old_state = gdk_window_get_state (window);
+
+  /* For found_sticky to remain TRUE, we have to also be on desktop
+   * 0xFFFFFFFF
+   */
+  if (old_state & GDK_WINDOW_STATE_STICKY)
+    {
+      if (!(toplevel->have_sticky && toplevel->on_all_desktops))
+        gdk_synthesize_window_state (window,
+                                     GDK_WINDOW_STATE_STICKY,
+                                     0);
+    }
+  else
+    {
+      if (toplevel->have_sticky || toplevel->on_all_desktops)
+        gdk_synthesize_window_state (window,
+                                     0,
+                                     GDK_WINDOW_STATE_STICKY);
+    }
+
+  if (old_state & GDK_WINDOW_STATE_FULLSCREEN)
+    {
+      if (!toplevel->have_fullscreen)
+        gdk_synthesize_window_state (window,
+                                     GDK_WINDOW_STATE_FULLSCREEN,
+                                     0);
+    }
+  else
+    {
+      if (toplevel->have_fullscreen)
+        gdk_synthesize_window_state (window,
+                                     0,
+                                     GDK_WINDOW_STATE_FULLSCREEN);
+    }
+
+  /* Our "maximized" means both vertical and horizontal; if only one,
+   * we don't expose that via GDK
+   */
+  if (old_state & GDK_WINDOW_STATE_MAXIMIZED)
+    {
+      if (!(toplevel->have_maxvert && toplevel->have_maxhorz))
+        gdk_synthesize_window_state (window,
+                                     GDK_WINDOW_STATE_MAXIMIZED,
+                                     0);
+    }
+  else
+    {
+      if (toplevel->have_maxvert && toplevel->have_maxhorz)
+        gdk_synthesize_window_state (window,
+                                     0,
+                                     GDK_WINDOW_STATE_MAXIMIZED);
+    }
+}
+
+static void
+gdk_check_wm_desktop_changed (GdkWindow *window)
+{
+  GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (window);
+  GdkDisplay *display = GDK_WINDOW_DISPLAY (window);
+
+  Atom type;
+  gint format;
+  gulong nitems;
+  gulong bytes_after;
+  guchar *data;
+  gulong *desktop;
+
+  type = None;
+  gdk_error_trap_push ();
+  XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display),
+                      GDK_WINDOW_XID (window),
+                      gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_DESKTOP"),
+                      0, G_MAXLONG, False, XA_CARDINAL, &type,
+                      &format, &nitems,
+                      &bytes_after, &data);
+  gdk_error_trap_pop ();
+
+  if (type != None)
+    {
+      desktop = (gulong *)data;
+      toplevel->on_all_desktops = (*desktop == 0xFFFFFFFF);
+      XFree (desktop);
+    }
+  else
+    toplevel->on_all_desktops = FALSE;
+
+  do_net_wm_state_changes (window);
+}
+
+static void
+gdk_check_wm_state_changed (GdkWindow *window)
+{
+  GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (window);
+  GdkDisplay *display = GDK_WINDOW_DISPLAY (window);
+
+  Atom type;
+  gint format;
+  gulong nitems;
+  gulong bytes_after;
+  guchar *data;
+  Atom *atoms = NULL;
+  gulong i;
+
+  gboolean had_sticky = toplevel->have_sticky;
+
+  toplevel->have_sticky = FALSE;
+  toplevel->have_maxvert = FALSE;
+  toplevel->have_maxhorz = FALSE;
+  toplevel->have_fullscreen = FALSE;
+
+  type = None;
+  gdk_error_trap_push ();
+  XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display), GDK_WINDOW_XID (window),
+		      gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE"),
+		      0, G_MAXLONG, False, XA_ATOM, &type, &format, &nitems,
+		      &bytes_after, &data);
+  gdk_error_trap_pop ();
+
+  if (type != None)
+    {
+      Atom sticky_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_STICKY");
+      Atom maxvert_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_MAXIMIZED_VERT");
+      Atom maxhorz_atom	= gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_MAXIMIZED_HORZ");
+      Atom fullscreen_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_FULLSCREEN");
+
+      atoms = (Atom *)data;
+
+      i = 0;
+      while (i < nitems)
+        {
+          if (atoms[i] == sticky_atom)
+            toplevel->have_sticky = TRUE;
+          else if (atoms[i] == maxvert_atom)
+            toplevel->have_maxvert = TRUE;
+          else if (atoms[i] == maxhorz_atom)
+            toplevel->have_maxhorz = TRUE;
+          else if (atoms[i] == fullscreen_atom)
+            toplevel->have_fullscreen = TRUE;
+
+          ++i;
+        }
+
+      XFree (atoms);
+    }
+
+  /* When have_sticky is turned on, we have to check the DESKTOP property
+   * as well.
+   */
+  if (toplevel->have_sticky && !had_sticky)
+    gdk_check_wm_desktop_changed (window);
+  else
+    do_net_wm_state_changes (window);
+}
+
+static gboolean
+gdk_display_x11_translate_event (GdkEventTranslator *translator,
+                                 GdkDisplay         *display,
+                                 GdkEvent           *event,
+                                 XEvent             *xevent)
+{
+  GdkWindow *window, *filter_window;
+  GdkWindowObject *window_private;
+  GdkWindowImplX11 *window_impl = NULL;
+  GdkScreen *screen = NULL;
+  GdkScreenX11 *screen_x11 = NULL;
+  GdkToplevelX11 *toplevel = NULL;
+  GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
+  gint xoffset = 0, yoffset = 0;
+  gboolean return_val;
+  Window xwindow = None;
+
+  /* FIXME: default filters */
+
+  /* Find the GdkWindow that this event relates to.
+   * Basically this means substructure events
+   * are reported same as structure events
+   */
+  window = gdk_event_translator_get_event_window (translator, display, xevent);
+  filter_window = gdk_event_translator_get_filter_window (translator, display, xevent);
+  window_private = (GdkWindowObject *) window;
+
+  if (window)
+    {
+      screen = GDK_WINDOW_SCREEN (window);
+      screen_x11 = GDK_SCREEN_X11 (screen);
+      toplevel = _gdk_x11_window_get_toplevel (window);
+      window_impl = GDK_WINDOW_IMPL_X11 (window_private->impl);
+      xwindow = GDK_WINDOW_XID (window);
+
+      g_object_ref (window);
+    }
+
+  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;
+	}
+    }
+#if 0
+  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;
+	    }
+	}
+    }
+#endif
+
+  /* FIXME: if window is NULL, xwindow should still have something meaningful here? */
+  if (xwindow != None &&
+      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;
+	}
+    }
+
+  /* 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_x11_window_get_offsets (window, &xoffset, &yoffset);
+
+  switch (xevent->type)
+    {
+    case KeymapNotify:
+      GDK_NOTE (EVENTS,
+		g_message ("keymap notify"));
+
+      /* Not currently handled */
+      return_val = FALSE;
+      break;
+
+    case Expose:
+      GDK_NOTE (EVENTS,
+		g_message ("expose:\t\twindow: %ld  %d	x,y: %d %d  w,h: %d %d%s",
+			   xevent->xexpose.window, xevent->xexpose.count,
+			   xevent->xexpose.x, xevent->xexpose.y,
+			   xevent->xexpose.width, xevent->xexpose.height,
+			   event->any.send_event ? " (send)" : ""));
+
+      if (window_private == NULL)
+        {
+          return_val = FALSE;
+          break;
+        }
+
+      {
+	GdkRectangle expose_rect;
+
+	expose_rect.x = xevent->xexpose.x + xoffset;
+	expose_rect.y = xevent->xexpose.y + yoffset;
+	expose_rect.width = xevent->xexpose.width;
+	expose_rect.height = xevent->xexpose.height;
+
+        _gdk_window_process_expose (window, xevent->xexpose.serial, &expose_rect);
+        return_val = FALSE;
+      }
+
+      break;
+
+    case GraphicsExpose:
+      {
+	GdkRectangle expose_rect;
+
+        GDK_NOTE (EVENTS,
+		  g_message ("graphics expose:\tdrawable: %ld",
+			     xevent->xgraphicsexpose.drawable));
+
+        if (window_private == NULL)
+          {
+            return_val = FALSE;
+            break;
+          }
+
+	expose_rect.x = xevent->xgraphicsexpose.x + xoffset;
+	expose_rect.y = xevent->xgraphicsexpose.y + yoffset;
+	expose_rect.width = xevent->xgraphicsexpose.width;
+	expose_rect.height = xevent->xgraphicsexpose.height;
+
+        _gdk_window_process_expose (window, xevent->xgraphicsexpose.serial, &expose_rect);
+
+        return_val = FALSE;
+      }
+      break;
+
+    case NoExpose:
+      GDK_NOTE (EVENTS,
+		g_message ("no expose:\t\tdrawable: %ld",
+			   xevent->xnoexpose.drawable));
+
+      event->no_expose.type = GDK_NO_EXPOSE;
+      event->no_expose.window = window;
+
+      break;
+
+    case VisibilityNotify:
+#ifdef G_ENABLE_DEBUG
+      if (_gdk_debug_flags & GDK_DEBUG_EVENTS)
+	switch (xevent->xvisibility.state)
+	  {
+	  case VisibilityFullyObscured:
+	    g_message ("visibility notify:\twindow: %ld	 none",
+		       xevent->xvisibility.window);
+	    break;
+	  case VisibilityPartiallyObscured:
+	    g_message ("visibility notify:\twindow: %ld	 partial",
+		       xevent->xvisibility.window);
+	    break;
+	  case VisibilityUnobscured:
+	    g_message ("visibility notify:\twindow: %ld	 full",
+		       xevent->xvisibility.window);
+	    break;
+	  }
+#endif /* G_ENABLE_DEBUG */
+
+      if (window_private == NULL)
+        {
+          return_val = FALSE;
+          break;
+        }
+
+      event->visibility.type = GDK_VISIBILITY_NOTIFY;
+      event->visibility.window = window;
+
+      switch (xevent->xvisibility.state)
+	{
+	case VisibilityFullyObscured:
+	  event->visibility.state = GDK_VISIBILITY_FULLY_OBSCURED;
+	  break;
+
+	case VisibilityPartiallyObscured:
+	  event->visibility.state = GDK_VISIBILITY_PARTIAL;
+	  break;
+
+	case VisibilityUnobscured:
+	  event->visibility.state = GDK_VISIBILITY_UNOBSCURED;
+	  break;
+	}
+
+      break;
+
+    case CreateNotify:
+      GDK_NOTE (EVENTS,
+		g_message ("create notify:\twindow: %ld  x,y: %d %d	w,h: %d %d  b-w: %d  parent: %ld	 ovr: %d",
+			   xevent->xcreatewindow.window,
+			   xevent->xcreatewindow.x,
+			   xevent->xcreatewindow.y,
+			   xevent->xcreatewindow.width,
+			   xevent->xcreatewindow.height,
+			   xevent->xcreatewindow.border_width,
+			   xevent->xcreatewindow.parent,
+			   xevent->xcreatewindow.override_redirect));
+      /* not really handled */
+      break;
+
+    case DestroyNotify:
+      GDK_NOTE (EVENTS,
+		g_message ("destroy notify:\twindow: %ld",
+			   xevent->xdestroywindow.window));
+
+      /* Ignore DestroyNotify from SubstructureNotifyMask */
+      if (xevent->xdestroywindow.window == xevent->xdestroywindow.event)
+	{
+	  event->any.type = GDK_DESTROY;
+	  event->any.window = window;
+
+	  return_val = window_private && !GDK_WINDOW_DESTROYED (window);
+
+	  if (window && GDK_WINDOW_XID (window) != screen_x11->xroot_window)
+	    gdk_window_destroy_notify (window);
+	}
+      else
+	return_val = FALSE;
+
+      break;
+
+    case UnmapNotify:
+      GDK_NOTE (EVENTS,
+		g_message ("unmap notify:\t\twindow: %ld",
+			   xevent->xmap.window));
+
+      event->any.type = GDK_UNMAP;
+      event->any.window = window;
+
+      /* If we are shown (not withdrawn) and get an unmap, it means we
+       * were iconified in the X sense. If we are withdrawn, and get
+       * an unmap, it means we hid the window ourselves, so we
+       * will have already flipped the iconified bit off.
+       */
+      if (window)
+	{
+	  if (GDK_WINDOW_IS_MAPPED (window))
+	    gdk_synthesize_window_state (window,
+					 0,
+					 GDK_WINDOW_STATE_ICONIFIED);
+
+	  _gdk_xgrab_check_unmap (window, xevent->xany.serial);
+	}
+
+      break;
+
+    case MapNotify:
+      GDK_NOTE (EVENTS,
+		g_message ("map notify:\t\twindow: %ld",
+			   xevent->xmap.window));
+
+      event->any.type = GDK_MAP;
+      event->any.window = window;
+
+      /* Unset iconified if it was set */
+      if (window && (((GdkWindowObject*)window)->state & GDK_WINDOW_STATE_ICONIFIED))
+        gdk_synthesize_window_state (window,
+                                     GDK_WINDOW_STATE_ICONIFIED,
+                                     0);
+
+      break;
+
+    case ReparentNotify:
+      GDK_NOTE (EVENTS,
+		g_message ("reparent notify:\twindow: %ld  x,y: %d %d  parent: %ld	ovr: %d",
+			   xevent->xreparent.window,
+			   xevent->xreparent.x,
+			   xevent->xreparent.y,
+			   xevent->xreparent.parent,
+			   xevent->xreparent.override_redirect));
+
+      /* Not currently handled */
+      return_val = FALSE;
+      break;
+
+    case ConfigureNotify:
+      GDK_NOTE (EVENTS,
+		g_message ("configure notify:\twindow: %ld  x,y: %d %d	w,h: %d %d  b-w: %d  above: %ld	 ovr: %d%s",
+			   xevent->xconfigure.window,
+			   xevent->xconfigure.x,
+			   xevent->xconfigure.y,
+			   xevent->xconfigure.width,
+			   xevent->xconfigure.height,
+			   xevent->xconfigure.border_width,
+			   xevent->xconfigure.above,
+			   xevent->xconfigure.override_redirect,
+			   !window
+			   ? " (discarding)"
+			   : GDK_WINDOW_TYPE (window) == GDK_WINDOW_CHILD
+			   ? " (discarding child)"
+			   : xevent->xconfigure.event != xevent->xconfigure.window
+			   ? " (discarding substructure)"
+			   : ""));
+      if (window && GDK_WINDOW_TYPE (window) == GDK_WINDOW_ROOT)
+        {
+	  window_impl->width = xevent->xconfigure.width;
+	  window_impl->height = xevent->xconfigure.height;
+
+	  _gdk_x11_drawable_update_size (window_private->impl);
+	  _gdk_x11_screen_size_changed (screen, xevent);
+        }
+
+      if (window &&
+	  xevent->xconfigure.event == xevent->xconfigure.window &&
+	  !GDK_WINDOW_DESTROYED (window) &&
+	  (window_private->extension_events != 0))
+	_gdk_input_configure_event (&xevent->xconfigure, window);
+
+#ifdef HAVE_XSYNC
+      if (toplevel && display_x11->use_sync && !XSyncValueIsZero (toplevel->pending_counter_value))
+	{
+	  toplevel->current_counter_value = toplevel->pending_counter_value;
+	  XSyncIntToValue (&toplevel->pending_counter_value, 0);
+	}
+#endif
+
+    if (!window ||
+	  xevent->xconfigure.event != xevent->xconfigure.window ||
+          GDK_WINDOW_TYPE (window) == GDK_WINDOW_CHILD ||
+          GDK_WINDOW_TYPE (window) == GDK_WINDOW_ROOT)
+	return_val = FALSE;
+      else
+	{
+	  event->configure.type = GDK_CONFIGURE;
+	  event->configure.window = window;
+	  event->configure.width = xevent->xconfigure.width;
+	  event->configure.height = xevent->xconfigure.height;
+
+	  if (!xevent->xconfigure.send_event &&
+	      !xevent->xconfigure.override_redirect &&
+	      !GDK_WINDOW_DESTROYED (window))
+	    {
+	      gint tx = 0;
+	      gint ty = 0;
+	      Window child_window = 0;
+
+	      gdk_error_trap_push ();
+	      if (XTranslateCoordinates (GDK_DRAWABLE_XDISPLAY (window),
+					 GDK_DRAWABLE_XID (window),
+					 screen_x11->xroot_window,
+					 0, 0,
+					 &tx, &ty,
+					 &child_window))
+		{
+		  event->configure.x = tx;
+		  event->configure.y = ty;
+		}
+	      gdk_error_trap_pop ();
+	    }
+	  else
+	    {
+	      event->configure.x = xevent->xconfigure.x;
+	      event->configure.y = xevent->xconfigure.y;
+	    }
+	  window_private->x = event->configure.x;
+	  window_private->y = event->configure.y;
+	  window_impl->width = xevent->xconfigure.width;
+	  window_impl->height = xevent->xconfigure.height;
+
+	  _gdk_x11_drawable_update_size (window_private->impl);
+
+	  if (window_private->resize_count >= 1)
+	    {
+	      window_private->resize_count -= 1;
+
+	      if (window_private->resize_count == 0)
+		_gdk_moveresize_configure_done (display, window);
+	    }
+	}
+      break;
+
+    case PropertyNotify:
+      GDK_NOTE (EVENTS,
+		g_message ("property notify:\twindow: %ld, atom(%ld): %s%s%s",
+			   xevent->xproperty.window,
+			   xevent->xproperty.atom,
+			   "\"",
+			   gdk_x11_get_xatom_name_for_display (display, xevent->xproperty.atom),
+			   "\""));
+
+      if (window_private == NULL)
+        {
+	  return_val = FALSE;
+          break;
+        }
+
+      /* We compare with the serial of the last time we mapped the
+       * window to avoid refetching properties that we set ourselves
+       */
+      if (toplevel &&
+	  xevent->xproperty.serial >= toplevel->map_serial)
+	{
+	  if (xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE"))
+	    gdk_check_wm_state_changed (window);
+
+	  if (xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_DESKTOP"))
+	    gdk_check_wm_desktop_changed (window);
+	}
+
+      if (window_private->event_mask & GDK_PROPERTY_CHANGE_MASK)
+	{
+	  event->property.type = GDK_PROPERTY_NOTIFY;
+	  event->property.window = window;
+	  event->property.atom = gdk_x11_xatom_to_atom_for_display (display, xevent->xproperty.atom);
+	  event->property.time = xevent->xproperty.time;
+	  event->property.state = xevent->xproperty.state;
+	}
+      else
+	return_val = FALSE;
+
+      break;
+
+    case SelectionClear:
+      GDK_NOTE (EVENTS,
+		g_message ("selection clear:\twindow: %ld",
+			   xevent->xproperty.window));
+
+      if (_gdk_selection_filter_clear_event (&xevent->xselectionclear))
+	{
+	  event->selection.type = GDK_SELECTION_CLEAR;
+	  event->selection.window = window;
+	  event->selection.selection = gdk_x11_xatom_to_atom_for_display (display, xevent->xselectionclear.selection);
+	  event->selection.time = xevent->xselectionclear.time;
+	}
+      else
+	return_val = FALSE;
+
+      break;
+
+    case SelectionRequest:
+      GDK_NOTE (EVENTS,
+		g_message ("selection request:\twindow: %ld",
+			   xevent->xproperty.window));
+
+      event->selection.type = GDK_SELECTION_REQUEST;
+      event->selection.window = window;
+      event->selection.selection = gdk_x11_xatom_to_atom_for_display (display, xevent->xselectionrequest.selection);
+      event->selection.target = gdk_x11_xatom_to_atom_for_display (display, xevent->xselectionrequest.target);
+      event->selection.property = gdk_x11_xatom_to_atom_for_display (display, xevent->xselectionrequest.property);
+      event->selection.requestor = xevent->xselectionrequest.requestor;
+      event->selection.time = xevent->xselectionrequest.time;
+
+      break;
+
+    case SelectionNotify:
+      GDK_NOTE (EVENTS,
+		g_message ("selection notify:\twindow: %ld",
+			   xevent->xproperty.window));
+
+      event->selection.type = GDK_SELECTION_NOTIFY;
+      event->selection.window = window;
+      event->selection.selection = gdk_x11_xatom_to_atom_for_display (display, xevent->xselection.selection);
+      event->selection.target = gdk_x11_xatom_to_atom_for_display (display, xevent->xselection.target);
+      event->selection.property = gdk_x11_xatom_to_atom_for_display (display, xevent->xselection.property);
+      event->selection.time = xevent->xselection.time;
+
+      break;
+
+    case ColormapNotify:
+      GDK_NOTE (EVENTS,
+		g_message ("colormap notify:\twindow: %ld",
+			   xevent->xcolormap.window));
+
+      /* Not currently handled */
+      return_val = FALSE;
+      break;
+
+    case ClientMessage:
+      {
+	GList *tmp_list;
+	GdkFilterReturn result = GDK_FILTER_CONTINUE;
+	GdkAtom message_type = gdk_x11_xatom_to_atom_for_display (display, xevent->xclient.message_type);
+
+	GDK_NOTE (EVENTS,
+		  g_message ("client message:\twindow: %ld",
+			     xevent->xclient.window));
+
+	tmp_list = display_x11->client_filters;
+	while (tmp_list)
+	  {
+	    GdkClientFilter *filter = tmp_list->data;
+	    tmp_list = tmp_list->next;
+
+	    if (filter->type == message_type)
+	      {
+		result = (*filter->function) (xevent, event, filter->data);
+		if (result != GDK_FILTER_CONTINUE)
+		  break;
+	      }
+	  }
+
+	switch (result)
+	  {
+	  case GDK_FILTER_REMOVE:
+	    return_val = FALSE;
+	    break;
+	  case GDK_FILTER_TRANSLATE:
+	    return_val = TRUE;
+	    break;
+	  case GDK_FILTER_CONTINUE:
+	    /* Send unknown ClientMessage's on to Gtk for it to use */
+            if (window_private == NULL)
+              {
+                return_val = FALSE;
+              }
+            else
+              {
+                event->client.type = GDK_CLIENT_EVENT;
+                event->client.window = window;
+                event->client.message_type = message_type;
+                event->client.data_format = xevent->xclient.format;
+                memcpy(&event->client.data, &xevent->xclient.data,
+                       sizeof(event->client.data));
+              }
+            break;
+          }
+      }
+
+      break;
+
+    case MappingNotify:
+      GDK_NOTE (EVENTS,
+		g_message ("mapping notify"));
+
+      /* Let XLib know that there is a new keyboard mapping.
+       */
+      XRefreshKeyboardMapping (&xevent->xmapping);
+      _gdk_keymap_keys_changed (display);
+      return_val = FALSE;
+      break;
+
+    default:
+#ifdef HAVE_XFIXES
+      if (xevent->type - display_x11->xfixes_event_base == XFixesSelectionNotify)
+	{
+	  XFixesSelectionNotifyEvent *selection_notify = (XFixesSelectionNotifyEvent *)xevent;
+
+	  _gdk_x11_screen_process_owner_change (screen, xevent);
+	  
+	  event->owner_change.type = GDK_OWNER_CHANGE;
+	  event->owner_change.window = window;
+	  event->owner_change.owner = selection_notify->owner;
+	  event->owner_change.reason = selection_notify->subtype;
+	  event->owner_change.selection = 
+	    gdk_x11_xatom_to_atom_for_display (display, 
+					       selection_notify->selection);
+	  event->owner_change.time = selection_notify->timestamp;
+	  event->owner_change.selection_time = selection_notify->selection_timestamp;
+	  
+	  return_val = TRUE;
+	}
+      else
+#endif
+#ifdef HAVE_RANDR
+      if (xevent->type - display_x11->xrandr_event_base == RRScreenChangeNotify ||
+          xevent->type - display_x11->xrandr_event_base == RRNotify)
+	{
+          if (screen)
+            _gdk_x11_screen_size_changed (screen, xevent);
+	}
+      else
+#endif
+#if defined(HAVE_XCOMPOSITE) && defined (HAVE_XDAMAGE) && defined (HAVE_XFIXES)
+      if (display_x11->have_xdamage && window_private && window_private->composited &&
+	  xevent->type == display_x11->xdamage_event_base + XDamageNotify &&
+	  ((XDamageNotifyEvent *) xevent)->damage == window_impl->damage)
+	{
+	  XDamageNotifyEvent *damage_event = (XDamageNotifyEvent *) xevent;
+	  XserverRegion repair;
+	  GdkRectangle rect;
+
+	  rect.x = window_private->x + damage_event->area.x;
+	  rect.y = window_private->y + damage_event->area.y;
+	  rect.width = damage_event->area.width;
+	  rect.height = damage_event->area.height;
+
+	  repair = XFixesCreateRegion (display_x11->xdisplay,
+				       &damage_event->area, 1);
+	  XDamageSubtract (display_x11->xdisplay,
+			   window_impl->damage,
+			   repair, None);
+	  XFixesDestroyRegion (display_x11->xdisplay, repair);
+
+	  if (window_private->parent != NULL)
+	    _gdk_window_process_expose (GDK_WINDOW (window_private->parent),
+					damage_event->serial, &rect);
+
+	  return_val = TRUE;
+	}
+      else
+#endif
+        return_val = FALSE;
+    }
+
+ done:
+  if (return_val)
+    {
+      if (event->any.window)
+	g_object_ref (event->any.window);
+    }
+  else
+    {
+      /* Mark this event as having no resources to be freed */
+      event->any.window = NULL;
+      event->any.type = GDK_NOTHING;
+    }
+
+  if (window)
+    g_object_unref (window);
+
+  return return_val;
+}
+
 /**
  * gdk_display_open:
  * @display_name: the name of the display to open



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