[devhelp] Window: use a GPropertyAction for win.gear-menu

[Sébastien Wilmet <swilmet src gnome org>]

commit 50c8b35e93e7105138f1e9ee0f42dabe78e8797e
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Sun Jan 28 20:38:13 2018 +0100

    Window: use a GPropertyAction for win.gear-menu
    
    The previous implementation was strange, I think it relied on an
    undocumented feature of GtkMenuButton (how it implements the
    GtkActionable interface).
    
    By creating a GPropertyAction on the GtkToggleButton:active property,
    it's self-documented, there is less magic going on.

 src/dh-window.c  |    9 ++++++---
 src/dh-window.ui |    1 -
 2 files changed, 6 insertions(+), 4 deletions(-)
---
diff --git a/src/dh-window.c b/src/dh-window.c
index ef292e7..2cb7e3c 100644
--- a/src/dh-window.c
+++ b/src/dh-window.c
@@ -444,9 +444,6 @@ add_action_entries (DhWindow *window)
                 /* Go */
                 { "go-back", go_back_cb },
                 { "go-forward", go_forward_cb },
-
-                /* Menu */
-                { "gear-menu", NULL, NULL, "false" },
         };
 
         g_action_map_add_action_entries (G_ACTION_MAP (window),
@@ -459,6 +456,12 @@ add_action_entries (DhWindow *window)
                                                  "visible");
         g_action_map_add_action (G_ACTION_MAP (window), G_ACTION (property_action));
         g_object_unref (property_action);
+
+        property_action = g_property_action_new ("gear-menu",
+                                                 priv->gear_menu_button,
+                                                 "active");
+        g_action_map_add_action (G_ACTION_MAP (window), G_ACTION (property_action));
+        g_object_unref (property_action);
 }
 
 static void
diff --git a/src/dh-window.ui b/src/dh-window.ui
index b2ca2f7..c2635b5 100644
--- a/src/dh-window.ui
+++ b/src/dh-window.ui
@@ -162,7 +162,6 @@
             <property name="visible">True</property>
             <property name="valign">center</property>
             <property name="can_focus">False</property>
-            <property name="action_name">win.gear-menu</property>
             <property name="menu_model">gear_menu</property>
             <property name="use_popover">True</property>
             <style>