[gtk+] gdk: Add new _gdk_set_window_state

[Jasper St. Pierre <jstpierre src gnome org>]

commit c1efc4ad7b4472a9a2f8eb0426638c502e470116
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Fri Apr 11 17:04:25 2014 -0700

    gdk: Add new _gdk_set_window_state
    
    Wayland's mechanism tells us all of our new states, rather than
    telling us which ones were added and removed. Add a new private
    interface so that we can simply specify the new states as a
    bitfield directly rather than having to compute which ones were
    added and removed.

 gdk/gdkevents.c    |   36 +++++++++++++++++++++---------------
 gdk/gdkinternals.h |    3 +++
 2 files changed, 24 insertions(+), 15 deletions(-)
---
diff --git a/gdk/gdkevents.c b/gdk/gdkevents.c
index 54ac136..fb785cf 100644
--- a/gdk/gdkevents.c
+++ b/gdk/gdkevents.c
@@ -2092,35 +2092,32 @@ _gdk_event_button_generate (GdkDisplay *display,
 }
 
 void
-gdk_synthesize_window_state (GdkWindow     *window,
-                             GdkWindowState unset_flags,
-                             GdkWindowState set_flags)
+_gdk_set_window_state (GdkWindow      *window,
+                       GdkWindowState  new_state)
 {
   GdkEvent temp_event;
   GdkWindowState old;
-  
+
   g_return_if_fail (window != NULL);
-  
+
   temp_event.window_state.window = window;
   temp_event.window_state.type = GDK_WINDOW_STATE;
   temp_event.window_state.send_event = FALSE;
-  
-  old = temp_event.window_state.window->state;
-  
-  temp_event.window_state.new_window_state = old;
-  temp_event.window_state.new_window_state |= set_flags;
-  temp_event.window_state.new_window_state &= ~unset_flags;
-  temp_event.window_state.changed_mask = temp_event.window_state.new_window_state ^ old;
+  temp_event.window_state.new_window_state = new_state;
+
+  old = window->state;
 
   if (temp_event.window_state.new_window_state == old)
     return; /* No actual work to do, nothing changed. */
 
+  temp_event.window_state.changed_mask = new_state ^ old;
+
   /* Actually update the field in GdkWindow, this is sort of an odd
    * place to do it, but seems like the safest since it ensures we expose no
    * inconsistent state to the user.
    */
-  
-  window->state = temp_event.window_state.new_window_state;
+
+  window->state = new_state;
 
   if (temp_event.window_state.changed_mask & GDK_WINDOW_STATE_WITHDRAWN)
     _gdk_window_update_viewable (window);
@@ -2136,7 +2133,6 @@ gdk_synthesize_window_state (GdkWindow     *window,
     case GDK_WINDOW_TEMP: /* ? */
       gdk_display_put_event (gdk_window_get_display (window), &temp_event);
       break;
-      
     case GDK_WINDOW_FOREIGN:
     case GDK_WINDOW_ROOT:
     case GDK_WINDOW_CHILD:
@@ -2144,6 +2140,16 @@ gdk_synthesize_window_state (GdkWindow     *window,
     }
 }
 
+void
+gdk_synthesize_window_state (GdkWindow     *window,
+                             GdkWindowState unset_flags,
+                             GdkWindowState set_flags)
+{
+  g_return_if_fail (window != NULL);
+
+  _gdk_set_window_state (window, (window->state | set_flags) & ~unset_flags);
+}
+
 /**
  * gdk_display_set_double_click_time:
  * @display: a #GdkDisplay
diff --git a/gdk/gdkinternals.h b/gdk/gdkinternals.h
index 6010396..3cc26cc 100644
--- a/gdk/gdkinternals.h
+++ b/gdk/gdkinternals.h
@@ -321,6 +321,9 @@ void _gdk_windowing_event_data_copy (const GdkEvent *src,
                                      GdkEvent       *dst);
 void _gdk_windowing_event_data_free (GdkEvent       *event);
 
+void _gdk_set_window_state (GdkWindow *window,
+                            GdkWindowState new_state);
+
 gboolean _gdk_cairo_surface_extents (cairo_surface_t *surface,
                                      GdkRectangle *extents);