[gtk+] Add example for "action-namespace" attribute

[Ryan Lortie <ryanl src gnome org>]

commit 9480e215062dc8d0319414bc96bab60e85b7f7a0
Author: Lars Uebernickel <lars uebernic de>
Date:   Thu Sep 13 13:10:24 2012 -0400

    Add example for "action-namespace" attribute

 examples/Makefile.am        |    1 +
 examples/action-namespace.c |  134 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 135 insertions(+), 0 deletions(-)
---
diff --git a/examples/Makefile.am b/examples/Makefile.am
index 4637c9c..4078ddf 100644
--- a/examples/Makefile.am
+++ b/examples/Makefile.am
@@ -55,6 +55,7 @@ noinst_PROGRAMS = \
 	bloatpad				\
 	plugman					\
 	sunny					\
+	action-namespace			\
 	grid-packing				\
 	drawing					\
 	builder
diff --git a/examples/action-namespace.c b/examples/action-namespace.c
new file mode 100644
index 0000000..147633a
--- /dev/null
+++ b/examples/action-namespace.c
@@ -0,0 +1,134 @@
+#include <gtk/gtk.h>
+
+static void
+action_activated (GSimpleAction *action,
+                  GVariant      *parameter,
+                  gpointer       user_data)
+{
+  GtkWindow *parent = user_data;
+  GtkWidget *dialog;
+
+  dialog = gtk_message_dialog_new (parent,
+                                   GTK_DIALOG_DESTROY_WITH_PARENT,
+                                   GTK_MESSAGE_INFO,
+                                   GTK_BUTTONS_CLOSE,
+                                   "Activated action `%s`",
+                                   g_action_get_name (G_ACTION (action)));
+
+  g_signal_connect_swapped (dialog, "response",
+                            G_CALLBACK (gtk_widget_destroy), dialog);
+
+  gtk_widget_show_all (dialog);
+}
+
+static GActionEntry doc_entries[] = {
+  { "save", action_activated },
+  { "print", action_activated },
+  { "share", action_activated }
+};
+
+static GActionEntry win_entries[] = {
+  { "fullscreen", action_activated },
+  { "close", action_activated },
+};
+
+const gchar *menu_ui =
+  "<interface>"
+  "  <menu id='doc-menu'>"
+  "    <section>"
+  "      <item>"
+  "        <attribute name='label'>_Save</attribute>"
+  "        <attribute name='action'>save</attribute>"
+  "      </item>"
+  "      <item>"
+  "        <attribute name='label'>_Print</attribute>"
+  "        <attribute name='action'>print</attribute>"
+  "      </item>"
+  "      <item>"
+  "        <attribute name='label'>_Share</attribute>"
+  "        <attribute name='action'>share</attribute>"
+  "      </item>"
+  "    </section>"
+  "  </menu>"
+  "  <menu id='win-menu'>"
+  "    <section>"
+  "      <item>"
+  "        <attribute name='label'>_Fullscreen</attribute>"
+  "        <attribute name='action'>fullscreen</attribute>"
+  "      </item>"
+  "      <item>"
+  "        <attribute name='label'>_Close</attribute>"
+  "        <attribute name='action'>close</attribute>"
+  "      </item>"
+  "    </section>"
+  "  </menu>"
+  "</interface>";
+
+static void
+activate (GApplication *app,
+          gpointer      user_data)
+{
+  GtkWidget *win;
+  GtkWidget *button;
+  GSimpleActionGroup *doc_actions;
+  GtkBuilder *builder;
+  GMenuModel *doc_menu;
+  GMenuModel *win_menu;
+  GMenu *button_menu;
+  GMenuItem *section;
+
+  if (gtk_application_get_windows (GTK_APPLICATION (app)) != NULL)
+    return;
+
+  win = gtk_application_window_new (GTK_APPLICATION (app));
+
+  doc_actions = g_simple_action_group_new ();
+  g_simple_action_group_add_entries (doc_actions, doc_entries,
+                                     G_N_ELEMENTS (doc_entries), win);
+
+  g_action_map_add_action_entries (G_ACTION_MAP (win), win_entries,
+                                   G_N_ELEMENTS (win_entries), win);
+
+  builder = gtk_builder_new ();
+  gtk_builder_add_from_string (builder, menu_ui, -1, NULL);
+
+  doc_menu = G_MENU_MODEL (gtk_builder_get_object (builder, "doc-menu"));
+  win_menu = G_MENU_MODEL (gtk_builder_get_object (builder, "win-menu"));
+
+  button_menu = g_menu_new ();
+
+  section = g_menu_item_new_section (NULL, doc_menu);
+  g_menu_item_set_attribute (section, "action-namespace", "s", "doc");
+  g_menu_append_item (button_menu, section);
+  g_object_unref (section);
+
+  section = g_menu_item_new_section (NULL, win_menu);
+  g_menu_item_set_attribute (section, "action-namespace", "s", "win");
+  g_menu_append_item (button_menu, section);
+  g_object_unref (section);
+
+  button = gtk_menu_button_new ();
+  gtk_button_set_label (GTK_BUTTON (button), "Menu");
+  gtk_widget_insert_action_group (button, "doc", G_ACTION_GROUP (doc_actions));
+  gtk_menu_button_set_menu_model (GTK_MENU_BUTTON (button), G_MENU_MODEL (button_menu));
+
+  gtk_container_add (GTK_CONTAINER (win), button);
+  gtk_container_set_border_width (GTK_CONTAINER (win), 12);
+  gtk_widget_show_all (win);
+
+  g_object_unref (button_menu);
+  g_object_unref (doc_actions);
+  g_object_unref (builder);
+}
+
+int
+main(int    argc,
+     char **argv)
+{
+  GtkApplication *app;
+
+  app = gtk_application_new ("org.gtk.Example", 0);
+  g_signal_connect (app, "activate", G_CALLBACK (activate), NULL);
+
+  return g_application_run (G_APPLICATION (app), argc, argv);
+}