[gtk+] event controller: Convert to g_object_notify_by_pspec

[Matthias Clasen <matthiasc src gnome org>]

commit 89ca0db7c5c17017b1b6e32c0682dd43ecd738a0
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Sep 6 10:46:15 2015 -0400

    event controller: Convert to g_object_notify_by_pspec
    
    This avoids pspec lookup overhead in g_object_notify.

 gtk/gtkeventcontroller.c |   38 ++++++++++++++++++++------------------
 1 files changed, 20 insertions(+), 18 deletions(-)
---
diff --git a/gtk/gtkeventcontroller.c b/gtk/gtkeventcontroller.c
index 5449846..28a3689 100644
--- a/gtk/gtkeventcontroller.c
+++ b/gtk/gtkeventcontroller.c
@@ -42,9 +42,12 @@ typedef struct _GtkEventControllerPrivate GtkEventControllerPrivate;
 
 enum {
   PROP_WIDGET = 1,
-  PROP_PROPAGATION_PHASE
+  PROP_PROPAGATION_PHASE,
+  LAST_PROP
 };
 
+static GParamSpec *properties[LAST_PROP] = { NULL, };
+
 struct _GtkEventControllerPrivate
 {
   GtkWidget *widget;
@@ -160,14 +163,12 @@ gtk_event_controller_class_init (GtkEventControllerClass *klass)
    *
    * Since: 3.14
    */
-  g_object_class_install_property (object_class,
-                                   PROP_WIDGET,
-                                   g_param_spec_object ("widget",
-                                                        P_("Widget"),
-                                                        P_("Widget the gesture relates to"),
-                                                        GTK_TYPE_WIDGET,
-                                                        GTK_PARAM_READWRITE |
-                                                        G_PARAM_CONSTRUCT_ONLY));
+  properties[PROP_WIDGET] =
+      g_param_spec_object ("widget",
+                           P_("Widget"),
+                           P_("Widget the gesture relates to"),
+                           GTK_TYPE_WIDGET,
+                           GTK_PARAM_READWRITE|G_PARAM_CONSTRUCT_ONLY);
   /**
    * GtkEventController:propagation-phase:
    *
@@ -175,14 +176,15 @@ gtk_event_controller_class_init (GtkEventControllerClass *klass)
    *
    * Since: 3.14
    */
-  g_object_class_install_property (object_class,
-                                   PROP_PROPAGATION_PHASE,
-                                   g_param_spec_enum ("propagation-phase",
-                                                      P_("Propagation phase"),
-                                                      P_("Propagation phase at which this controller is 
run"),
-                                                      GTK_TYPE_PROPAGATION_PHASE,
-                                                      GTK_PHASE_BUBBLE,
-                                                      GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
+  properties[PROP_PROPAGATION_PHASE] =
+      g_param_spec_enum ("propagation-phase",
+                         P_("Propagation phase"),
+                         P_("Propagation phase at which this controller is run"),
+                         GTK_TYPE_PROPAGATION_PHASE,
+                         GTK_PHASE_BUBBLE,
+                         GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
+
+  g_object_class_install_properties (object_class, LAST_PROP, properties);
 }
 
 static void
@@ -359,5 +361,5 @@ gtk_event_controller_set_propagation_phase (GtkEventController  *controller,
   if (phase == GTK_PHASE_NONE)
     gtk_event_controller_reset (controller);
 
-  g_object_notify (G_OBJECT (controller), "propagation-phase");
+  g_object_notify_by_pspec (G_OBJECT (controller), properties[PROP_PROPAGATION_PHASE]);
 }