Add an UPDATE phase and GdkFrameClockTarget, use for GtkStyleContext

Switch GtkStyleContext to using GdkFrameClock. To do this, add a new
UPDATE phase to GdkFrameClock.

Add a GdkFrameClockTarget interface with a single set_clock() method,
and use this to deal with the fact that GtkWidget only has a frame
clock when realized.

https://bugzilla.gnome.org/show_bug.cgi?id=685460

1 files changed, 29 insertions, 0 deletions

diff --git a/gdk/gdkframeclock.c b/gdk/gdkframeclock.c
index d385123842..569ab6b52e 100644
--- a/gdk/gdkframeclock.c
+++ b/gdk/gdkframeclock.c
@@ -28,6 +28,19 @@
 
 #include "gdkframeclock.h"
 
+G_DEFINE_INTERFACE (GdkFrameClockTarget, gdk_frame_clock_target, G_TYPE_OBJECT)
+
+static void
+gdk_frame_clock_target_default_init (GdkFrameClockTargetInterface *iface)
+{
+}
+
+void gdk_frame_clock_target_set_clock (GdkFrameClockTarget *target,
+                                       GdkFrameClock       *clock)
+{
+  GDK_FRAME_CLOCK_TARGET_GET_IFACE (target)->set_clock (target, clock);
+}
+
 /**
  * SECTION:frameclock
  * @Short_description: Frame clock syncs painting to a window or display
@@ -79,6 +92,7 @@ G_DEFINE_INTERFACE (GdkFrameClock, gdk_frame_clock, G_TYPE_OBJECT)
 enum {
   FRAME_REQUESTED,
   BEFORE_PAINT,
+  UPDATE,
   LAYOUT,
   PAINT,
   AFTER_PAINT,
@@ -124,6 +138,21 @@ gdk_frame_clock_default_init (GdkFrameClockInterface *iface)
                   G_TYPE_NONE, 0);
 
   /**
+   * GdkFrameClock::update:
+   * @clock: the frame clock emitting the signal
+   *
+   * FIXME.
+   */
+  signals[UPDATE] =
+    g_signal_new (g_intern_static_string ("update"),
+                  GDK_TYPE_FRAME_CLOCK,
+                  G_SIGNAL_RUN_LAST,
+                  0,
+                  NULL, NULL,
+                  g_cclosure_marshal_VOID__VOID,
+                  G_TYPE_NONE, 0);
+
+  /**
    * GdkFrameClock::layout:
    * @clock: the frame clock emitting the signal
    *