[gnome-builder] menus: add GeditMenuExtension as GbMenuExtension

[Christian Hergert <chergert src gnome org>]

commit dbeace4bec5a7fec66111282cbb115ac31683236
Author: Christian Hergert <christian hergert me>
Date:   Thu Sep 3 16:06:01 2015 -0700

    menus: add GeditMenuExtension as GbMenuExtension
    
    We need the namespace change so that we can included it in Builder-1.0.gir.

 src/Makefile.am              |    2 +
 src/util/gb-menu-extension.c |  185 ++++++++++++++++++++++++++++++++++++++++++
 src/util/gb-menu-extension.h |   48 +++++++++++
 3 files changed, 235 insertions(+), 0 deletions(-)
---
diff --git a/src/Makefile.am b/src/Makefile.am
index 1b5fa99..08e288d 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -19,6 +19,8 @@ libgnome_builder_public_sources = \
        editor/gb-editor-view.h \
        editor/gb-editor-view-addin.c \
        editor/gb-editor-view-addin.h \
+       util/gb-menu-extension.c \
+       util/gb-menu-extension.h \
        views/gb-view.c \
        views/gb-view.h \
        $(NULL)
diff --git a/src/util/gb-menu-extension.c b/src/util/gb-menu-extension.c
new file mode 100644
index 0000000..d5806c4
--- /dev/null
+++ b/src/util/gb-menu-extension.c
@@ -0,0 +1,185 @@
+/*
+ * gedit-menu-extension.c
+ * This file is part of gedit
+ *
+ * Copyright (C) 2014 - Ignacio Casal Quinteiro
+ *
+ * gb is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * gb is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with gb. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "gb-menu-extension.h"
+
+#include <string.h>
+
+static guint last_merge_id = 0;
+
+struct _GbMenuExtension
+{
+       GObject parent_instance;
+
+       GMenu *menu;
+       guint merge_id;
+       gboolean dispose_has_run;
+};
+
+enum
+{
+       PROP_0,
+       PROP_MENU
+};
+
+G_DEFINE_TYPE (GbMenuExtension, gb_menu_extension, G_TYPE_OBJECT)
+
+static void
+gb_menu_extension_dispose (GObject *object)
+{
+       GbMenuExtension *menu = GB_MENU_EXTENSION (object);
+
+       if (!menu->dispose_has_run)
+       {
+               gb_menu_extension_remove_items (menu);
+               menu->dispose_has_run = TRUE;
+       }
+
+       g_clear_object (&menu->menu);
+
+       G_OBJECT_CLASS (gb_menu_extension_parent_class)->dispose (object);
+}
+
+static void
+gb_menu_extension_get_property (GObject    *object,
+                                guint       prop_id,
+                                GValue     *value,
+                                GParamSpec *pspec)
+{
+       GbMenuExtension *menu = GB_MENU_EXTENSION (object);
+
+       switch (prop_id)
+       {
+               case PROP_MENU:
+                       g_value_set_object (value, menu->menu);
+                       break;
+               default:
+                       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+                       break;
+       }
+}
+
+static void
+gb_menu_extension_set_property (GObject     *object,
+                                   guint         prop_id,
+                                   const GValue *value,
+                                   GParamSpec   *pspec)
+{
+       GbMenuExtension *menu = GB_MENU_EXTENSION (object);
+
+       switch (prop_id)
+       {
+               case PROP_MENU:
+                       menu->menu = g_value_dup_object (value);
+                       break;
+               default:
+                       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+                       break;
+       }
+}
+
+static void
+gb_menu_extension_class_init (GbMenuExtensionClass *klass)
+{
+       GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+       object_class->dispose = gb_menu_extension_dispose;
+       object_class->get_property = gb_menu_extension_get_property;
+       object_class->set_property = gb_menu_extension_set_property;
+
+       g_object_class_install_property (object_class,
+                                        PROP_MENU,
+                                        g_param_spec_object ("menu",
+                                                             "Menu",
+                                                             "The main menu",
+                                                             G_TYPE_MENU,
+                                                             G_PARAM_READWRITE |
+                                                             G_PARAM_CONSTRUCT_ONLY |
+                                                             G_PARAM_STATIC_STRINGS));
+}
+
+static void
+gb_menu_extension_init (GbMenuExtension *menu)
+{
+       menu->merge_id = ++last_merge_id;
+}
+
+GbMenuExtension *
+gb_menu_extension_new (GMenu *menu)
+{
+       return g_object_new (GB_TYPE_MENU_EXTENSION, "menu", menu, NULL);
+}
+
+void
+gb_menu_extension_append_menu_item (GbMenuExtension *menu,
+                                    GMenuItem       *item)
+{
+       g_return_if_fail (GB_IS_MENU_EXTENSION (menu));
+       g_return_if_fail (G_IS_MENU_ITEM (item));
+
+       if (menu->menu != NULL)
+       {
+               g_menu_item_set_attribute (item, "gb-merge-id", "u", menu->merge_id);
+               g_menu_append_item (menu->menu, item);
+       }
+}
+
+void
+gb_menu_extension_prepend_menu_item (GbMenuExtension *menu,
+                                     GMenuItem       *item)
+{
+       g_return_if_fail (GB_IS_MENU_EXTENSION (menu));
+       g_return_if_fail (G_IS_MENU_ITEM (item));
+
+       if (menu->menu != NULL)
+       {
+               g_menu_item_set_attribute (item, "gb-merge-id", "u", menu->merge_id);
+               g_menu_prepend_item (menu->menu, item);
+       }
+}
+
+void
+gb_menu_extension_remove_items (GbMenuExtension *menu)
+{
+       gint i, n_items;
+
+       g_return_if_fail (GB_IS_MENU_EXTENSION (menu));
+
+       n_items = g_menu_model_get_n_items (G_MENU_MODEL (menu->menu));
+       i = 0;
+       while (i < n_items)
+       {
+               guint id = 0;
+
+               if (g_menu_model_get_item_attribute (G_MENU_MODEL (menu->menu),
+                                                    i, "gb-merge-id", "u", &id) &&
+                   id == menu->merge_id)
+               {
+                       g_menu_remove (menu->menu, i);
+                       n_items--;
+               }
+               else
+               {
+                       i++;
+               }
+       }
+}
+
+/* ex:set ts=8 noet: */
diff --git a/src/util/gb-menu-extension.h b/src/util/gb-menu-extension.h
new file mode 100644
index 0000000..128e7ef
--- /dev/null
+++ b/src/util/gb-menu-extension.h
@@ -0,0 +1,48 @@
+/*
+ * gb-menu-extension.h
+ * This file is part of gb
+ *
+ * Copyright (C) 2014 - Ignacio Casal Quinteiro
+ *
+ * gb is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * gb is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with gb. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __GB_MENU_EXTENSION_H__
+#define __GB_MENU_EXTENSION_H__
+
+#include <glib-object.h>
+#include <gio/gio.h>
+
+G_BEGIN_DECLS
+
+#define GB_TYPE_MENU_EXTENSION (gb_menu_extension_get_type ())
+
+G_DECLARE_FINAL_TYPE (GbMenuExtension, gb_menu_extension, GB, MENU_EXTENSION, GObject)
+
+GbMenuExtension       *gb_menu_extension_new                 (GMenu           *menu);
+
+void                   gb_menu_extension_append_menu_item    (GbMenuExtension *menu,
+                                                              GMenuItem       *item);
+
+void                   gb_menu_extension_prepend_menu_item   (GbMenuExtension *menu,
+                                                              GMenuItem       *item);
+
+void                   gb_menu_extension_remove_items        (GbMenuExtension *menu);
+
+G_END_DECLS
+
+#endif /* __GB_MENU_EXTENSION_H__ */
+
+/* ex:set ts=8 noet: */
+