[recipes] Explicitly set an app menu when not on OS X

[Matthias Clasen <matthiasc src gnome org>]

commit 3eadd703c11739a46d7539e662a47b66f5ca7def
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Mar 6 20:54:36 2017 -0500

    Explicitly set an app menu when not on OS X
    
    Sadly, the prefer-app-menu heuristics don't quite work
    right in all cases for windows with headerbars, which
    never display a menubar. There are cases where the heuristics
    expect a menubar to be displayed inside the window, and
    don't provide an app menu. But with our header bar, we
    always want our app menu, _except_ for the OS X case,
    where we want our menubar with the platform-provided
    app mnenu.

 src/gr-app.c |   18 ++++++++++++++++++
 1 files changed, 18 insertions(+), 0 deletions(-)
---
diff --git a/src/gr-app.c b/src/gr-app.c
index 6d04b3c..e85769d 100644
--- a/src/gr-app.c
+++ b/src/gr-app.c
@@ -35,6 +35,9 @@
 #include "gr-utils.h"
 #include "gr-recipe-exporter.h"
 
+#ifdef GDK_WINDOWING_QUARTZ
+#include <gdk/gdkquartz.h>
+#endif
 
 struct _GrApp
 {
@@ -353,6 +356,21 @@ gr_app_startup (GApplication *app)
         gtk_application_set_accels_for_action (GTK_APPLICATION (app), "app.quit", quit_accels);
         gtk_application_set_accels_for_action (GTK_APPLICATION (app), "app.search('')", search_accels);
 
+#ifdef GDK_WINDOWING_QUARTZ
+        if (GDK_IS_QUARTZ_DISPLAY (gdk_display_get_default ())) {
+                g_debug ("Not setting an app menu on OS X");
+        }
+        else
+#endif
+        {
+                g_autoptr(GtkBuilder) builder = NULL;
+                GObject *menu;
+
+                builder = gtk_builder_new_from_resource ("/org/gnome/Recipes/gtk/menus-appmenu.ui");
+                menu = gtk_builder_get_object (builder, "app-menu");
+                gtk_application_set_app_menu (GTK_APPLICATION (app), G_MENU_MODEL (menu));
+        }
+
         load_application_css (GR_APP (app));
 }