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-rw-r--r--libqmenumodel/QMenuModel/plugin.cpp4
-rw-r--r--libqmenumodel/src/CMakeLists.txt14
-rw-r--r--libqmenumodel/src/gtk/config.h0
-rw-r--r--libqmenumodel/src/gtk/gtkactionmuxer.c778
-rw-r--r--libqmenumodel/src/gtk/gtkactionmuxer.h52
-rw-r--r--libqmenumodel/src/gtk/gtkactionobservable.c78
-rw-r--r--libqmenumodel/src/gtk/gtkactionobservable.h60
-rw-r--r--libqmenumodel/src/gtk/gtkactionobserver.c159
-rw-r--r--libqmenumodel/src/gtk/gtkactionobserver.h83
-rw-r--r--libqmenumodel/src/gtk/gtkmenutracker.c495
-rw-r--r--libqmenumodel/src/gtk/gtkmenutracker.h52
-rw-r--r--libqmenumodel/src/gtk/gtkmenutrackeritem.c788
-rw-r--r--libqmenumodel/src/gtk/gtkmenutrackeritem.h84
-rw-r--r--libqmenumodel/src/unitymenumodel.cpp227
-rw-r--r--libqmenumodel/src/unitymenumodel.h56
-rw-r--r--libqmenumodel/src/unityqmlmenumodel.cpp102
-rw-r--r--libqmenumodel/src/unityqmlmenumodel.h59
17 files changed, 3089 insertions, 2 deletions
diff --git a/libqmenumodel/QMenuModel/plugin.cpp b/libqmenumodel/QMenuModel/plugin.cpp
index ee05fff..0205102 100644
--- a/libqmenumodel/QMenuModel/plugin.cpp
+++ b/libqmenumodel/QMenuModel/plugin.cpp
@@ -22,6 +22,7 @@
#include "qdbusmenumodel.h"
#include "qdbusactiongroup.h"
#include "qstateaction.h"
+#include "unityqmlmenumodel.h"
#include <QtQml>
@@ -36,6 +37,5 @@ void QMenuModelQmlPlugin::registerTypes(const char *uri)
qmlRegisterType<QDBusMenuModel>(uri, 0, 1, "QDBusMenuModel");
qmlRegisterType<QDBusActionGroup>(uri, 0, 1, "QDBusActionGroup");
-
+ qmlRegisterType<UnityQmlMenuModel>(uri, 0, 1, "UnityMenuModel");
}
-
diff --git a/libqmenumodel/src/CMakeLists.txt b/libqmenumodel/src/CMakeLists.txt
index 1fb89df..cd81371 100644
--- a/libqmenumodel/src/CMakeLists.txt
+++ b/libqmenumodel/src/CMakeLists.txt
@@ -9,6 +9,19 @@ set(QMENUMODEL_SRC
qdbusmenumodel.cpp
qdbusactiongroup.cpp
qstateaction.cpp
+ unitymenumodel.cpp
+ unitymenumodel.h
+ unityqmlmenumodel.cpp
+ gtk/gtkactionmuxer.c
+ gtk/gtkactionmuxer.h
+ gtk/gtkactionobservable.c
+ gtk/gtkactionobservable.h
+ gtk/gtkactionobserver.c
+ gtk/gtkactionobserver.h
+ gtk/gtkmenutracker.c
+ gtk/gtkmenutracker.h
+ gtk/gtkmenutrackeritem.c
+ gtk/gtkmenutrackeritem.h
)
set(SHAREDLIBNAME qmenumodel)
@@ -43,6 +56,7 @@ set(QMENUMODEL_HEADERS
qdbusobject.h
qmenumodel.h
qstateaction.h
+ unitymenumodel.h
)
set(INCLUDEDIR qmenumodel)
diff --git a/libqmenumodel/src/gtk/config.h b/libqmenumodel/src/gtk/config.h
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/libqmenumodel/src/gtk/config.h
diff --git a/libqmenumodel/src/gtk/gtkactionmuxer.c b/libqmenumodel/src/gtk/gtkactionmuxer.c
new file mode 100644
index 0000000..4618564
--- /dev/null
+++ b/libqmenumodel/src/gtk/gtkactionmuxer.c
@@ -0,0 +1,778 @@
+/*
+ * Copyright © 2011 Canonical Limited
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the licence, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Author: Ryan Lortie <desrt@desrt.ca>
+ */
+
+#include "config.h"
+
+#include "gtkactionmuxer.h"
+
+#include "gtkactionobservable.h"
+#include "gtkactionobserver.h"
+
+#include <string.h>
+
+/**
+ * SECTION:gtkactionmuxer
+ * @short_description: Aggregate and monitor several action groups
+ *
+ * #GtkActionMuxer is a #GActionGroup and #GtkActionObservable that is
+ * capable of containing other #GActionGroup instances.
+ *
+ * The typical use is aggregating all of the actions applicable to a
+ * particular context into a single action group, with namespacing.
+ *
+ * Consider the case of two action groups -- one containing actions
+ * applicable to an entire application (such as 'quit') and one
+ * containing actions applicable to a particular window in the
+ * application (such as 'fullscreen').
+ *
+ * In this case, each of these action groups could be added to a
+ * #GtkActionMuxer with the prefixes "app" and "win", respectively. This
+ * would expose the actions as "app.quit" and "win.fullscreen" on the
+ * #GActionGroup interface presented by the #GtkActionMuxer.
+ *
+ * Activations and state change requests on the #GtkActionMuxer are wired
+ * through to the underlying action group in the expected way.
+ *
+ * This class is typically only used at the site of "consumption" of
+ * actions (eg: when displaying a menu that contains many actions on
+ * different objects).
+ */
+
+static void gtk_action_muxer_group_iface_init (GActionGroupInterface *iface);
+static void gtk_action_muxer_observable_iface_init (GtkActionObservableInterface *iface);
+
+typedef GObjectClass GtkActionMuxerClass;
+
+struct _GtkActionMuxer
+{
+ GObject parent_instance;
+
+ GHashTable *observed_actions;
+ GHashTable *groups;
+ GtkActionMuxer *parent;
+};
+
+G_DEFINE_TYPE_WITH_CODE (GtkActionMuxer, gtk_action_muxer, G_TYPE_OBJECT,
+ G_IMPLEMENT_INTERFACE (G_TYPE_ACTION_GROUP, gtk_action_muxer_group_iface_init)
+ G_IMPLEMENT_INTERFACE (GTK_TYPE_ACTION_OBSERVABLE, gtk_action_muxer_observable_iface_init))
+
+enum
+{
+ PROP_0,
+ PROP_PARENT,
+ NUM_PROPERTIES
+};
+
+static GParamSpec *properties[NUM_PROPERTIES];
+
+typedef struct
+{
+ GtkActionMuxer *muxer;
+ GSList *watchers;
+ gchar *fullname;
+} Action;
+
+typedef struct
+{
+ GtkActionMuxer *muxer;
+ GActionGroup *group;
+ gchar *prefix;
+ gulong handler_ids[4];
+} Group;
+
+static void
+gtk_action_muxer_append_group_actions (gpointer key,
+ gpointer value,
+ gpointer user_data)
+{
+ const gchar *prefix = key;
+ Group *group = value;
+ GArray *actions = user_data;
+ gchar **group_actions;
+ gchar **action;
+
+ group_actions = g_action_group_list_actions (group->group);
+ for (action = group_actions; *action; action++)
+ {
+ gchar *fullname;
+
+ fullname = g_strconcat (prefix, ".", *action, NULL);
+ g_array_append_val (actions, fullname);
+ }
+
+ g_strfreev (group_actions);
+}
+
+static gchar **
+gtk_action_muxer_list_actions (GActionGroup *action_group)
+{
+ GtkActionMuxer *muxer = GTK_ACTION_MUXER (action_group);
+ GArray *actions;
+
+ actions = g_array_new (TRUE, FALSE, sizeof (gchar *));
+
+ for ( ; muxer != NULL; muxer = muxer->parent)
+ {
+ g_hash_table_foreach (muxer->groups,
+ gtk_action_muxer_append_group_actions,
+ actions);
+ }
+
+ return (gchar **) g_array_free (actions, FALSE);
+}
+
+static Group *
+gtk_action_muxer_find_group (GtkActionMuxer *muxer,
+ const gchar *full_name,
+ const gchar **action_name)
+{
+ const gchar *dot;
+ gchar *prefix;
+ Group *group;
+
+ dot = strchr (full_name, '.');
+
+ if (!dot)
+ return NULL;
+
+ prefix = g_strndup (full_name, dot - full_name);
+ group = g_hash_table_lookup (muxer->groups, prefix);
+ g_free (prefix);
+
+ if (action_name)
+ *action_name = dot + 1;
+
+ return group;
+}
+
+static void
+gtk_action_muxer_action_enabled_changed (GtkActionMuxer *muxer,
+ const gchar *action_name,
+ gboolean enabled)
+{
+ Action *action;
+ GSList *node;
+
+ action = g_hash_table_lookup (muxer->observed_actions, action_name);
+ for (node = action ? action->watchers : NULL; node; node = node->next)
+ gtk_action_observer_action_enabled_changed (node->data, GTK_ACTION_OBSERVABLE (muxer), action_name, enabled);
+ g_action_group_action_enabled_changed (G_ACTION_GROUP (muxer), action_name, enabled);
+}
+
+static void
+gtk_action_muxer_group_action_enabled_changed (GActionGroup *action_group,
+ const gchar *action_name,
+ gboolean enabled,
+ gpointer user_data)
+{
+ Group *group = user_data;
+ gchar *fullname;
+
+ fullname = g_strconcat (group->prefix, ".", action_name, NULL);
+ gtk_action_muxer_action_enabled_changed (group->muxer, fullname, enabled);
+
+ g_free (fullname);
+}
+
+static void
+gtk_action_muxer_parent_action_enabled_changed (GActionGroup *action_group,
+ const gchar *action_name,
+ gboolean enabled,
+ gpointer user_data)
+{
+ GtkActionMuxer *muxer = user_data;
+
+ gtk_action_muxer_action_enabled_changed (muxer, action_name, enabled);
+}
+
+static void
+gtk_action_muxer_action_state_changed (GtkActionMuxer *muxer,
+ const gchar *action_name,
+ GVariant *state)
+{
+ Action *action;
+ GSList *node;
+
+ action = g_hash_table_lookup (muxer->observed_actions, action_name);
+ for (node = action ? action->watchers : NULL; node; node = node->next)
+ gtk_action_observer_action_state_changed (node->data, GTK_ACTION_OBSERVABLE (muxer), action_name, state);
+ g_action_group_action_state_changed (G_ACTION_GROUP (muxer), action_name, state);
+}
+
+static void
+gtk_action_muxer_group_action_state_changed (GActionGroup *action_group,
+ const gchar *action_name,
+ GVariant *state,
+ gpointer user_data)
+{
+ Group *group = user_data;
+ gchar *fullname;
+
+ fullname = g_strconcat (group->prefix, ".", action_name, NULL);
+ gtk_action_muxer_action_state_changed (group->muxer, fullname, state);
+
+ g_free (fullname);
+}
+
+static void
+gtk_action_muxer_parent_action_state_changed (GActionGroup *action_group,
+ const gchar *action_name,
+ GVariant *state,
+ gpointer user_data)
+{
+ GtkActionMuxer *muxer = user_data;
+
+ gtk_action_muxer_action_state_changed (muxer, action_name, state);
+}
+
+static void
+gtk_action_muxer_action_added (GtkActionMuxer *muxer,
+ const gchar *action_name,
+ GActionGroup *original_group,
+ const gchar *orignal_action_name)
+{
+ const GVariantType *parameter_type;
+ gboolean enabled;
+ GVariant *state;
+ Action *action;
+
+ action = g_hash_table_lookup (muxer->observed_actions, action_name);
+
+ if (action && action->watchers &&
+ g_action_group_query_action (original_group, orignal_action_name,
+ &enabled, &parameter_type, NULL, NULL, &state))
+ {
+ GSList *node;
+
+ for (node = action->watchers; node; node = node->next)
+ gtk_action_observer_action_added (node->data,
+ GTK_ACTION_OBSERVABLE (muxer),
+ action_name, parameter_type, enabled, state);
+
+ if (state)
+ g_variant_unref (state);
+ }
+
+ g_action_group_action_added (G_ACTION_GROUP (muxer), action_name);
+}
+
+static void
+gtk_action_muxer_action_added_to_group (GActionGroup *action_group,
+ const gchar *action_name,
+ gpointer user_data)
+{
+ Group *group = user_data;
+ gchar *fullname;
+
+ fullname = g_strconcat (group->prefix, ".", action_name, NULL);
+ gtk_action_muxer_action_added (group->muxer, fullname, action_group, action_name);
+
+ g_free (fullname);
+}
+
+static void
+gtk_action_muxer_action_added_to_parent (GActionGroup *action_group,
+ const gchar *action_name,
+ gpointer user_data)
+{
+ GtkActionMuxer *muxer = user_data;
+
+ gtk_action_muxer_action_added (muxer, action_name, action_group, action_name);
+}
+
+static void
+gtk_action_muxer_action_removed (GtkActionMuxer *muxer,
+ const gchar *action_name)
+{
+ Action *action;
+ GSList *node;
+
+ action = g_hash_table_lookup (muxer->observed_actions, action_name);
+ for (node = action ? action->watchers : NULL; node; node = node->next)
+ gtk_action_observer_action_removed (node->data, GTK_ACTION_OBSERVABLE (muxer), action_name);
+ g_action_group_action_removed (G_ACTION_GROUP (muxer), action_name);
+}
+
+static void
+gtk_action_muxer_action_removed_from_group (GActionGroup *action_group,
+ const gchar *action_name,
+ gpointer user_data)
+{
+ Group *group = user_data;
+ gchar *fullname;
+
+ fullname = g_strconcat (group->prefix, ".", action_name, NULL);
+ gtk_action_muxer_action_removed (group->muxer, fullname);
+
+ g_free (fullname);
+}
+
+static void
+gtk_action_muxer_action_removed_from_parent (GActionGroup *action_group,
+ const gchar *action_name,
+ gpointer user_data)
+{
+ GtkActionMuxer *muxer = user_data;
+
+ gtk_action_muxer_action_removed (muxer, action_name);
+}
+
+static gboolean
+gtk_action_muxer_query_action (GActionGroup *action_group,
+ const gchar *action_name,
+ gboolean *enabled,
+ const GVariantType **parameter_type,
+ const GVariantType **state_type,
+ GVariant **state_hint,
+ GVariant **state)
+{
+ GtkActionMuxer *muxer = GTK_ACTION_MUXER (action_group);
+ Group *group;
+ const gchar *unprefixed_name;
+
+ group = gtk_action_muxer_find_group (muxer, action_name, &unprefixed_name);
+
+ if (group)
+ return g_action_group_query_action (group->group, unprefixed_name, enabled,
+ parameter_type, state_type, state_hint, state);
+
+ if (muxer->parent)
+ return g_action_group_query_action (G_ACTION_GROUP (muxer->parent), action_name,
+ enabled, parameter_type,
+ state_type, state_hint, state);
+
+ return FALSE;
+}
+
+static void
+gtk_action_muxer_activate_action (GActionGroup *action_group,
+ const gchar *action_name,
+ GVariant *parameter)
+{
+ GtkActionMuxer *muxer = GTK_ACTION_MUXER (action_group);
+ Group *group;
+ const gchar *unprefixed_name;
+
+ group = gtk_action_muxer_find_group (muxer, action_name, &unprefixed_name);
+
+ if (group)
+ g_action_group_activate_action (group->group, unprefixed_name, parameter);
+ else if (muxer->parent)
+ g_action_group_activate_action (G_ACTION_GROUP (muxer->parent), action_name, parameter);
+}
+
+static void
+gtk_action_muxer_change_action_state (GActionGroup *action_group,
+ const gchar *action_name,
+ GVariant *state)
+{
+ GtkActionMuxer *muxer = GTK_ACTION_MUXER (action_group);
+ Group *group;
+ const gchar *unprefixed_name;
+
+ group = gtk_action_muxer_find_group (muxer, action_name, &unprefixed_name);
+
+ if (group)
+ g_action_group_change_action_state (group->group, unprefixed_name, state);
+ else if (muxer->parent)
+ g_action_group_change_action_state (G_ACTION_GROUP (muxer->parent), action_name, state);
+}
+
+static void
+gtk_action_muxer_unregister_internal (Action *action,
+ gpointer observer)
+{
+ GtkActionMuxer *muxer = action->muxer;
+ GSList **ptr;
+
+ for (ptr = &action->watchers; *ptr; ptr = &(*ptr)->next)
+ if ((*ptr)->data == observer)
+ {
+ *ptr = g_slist_remove (*ptr, observer);
+
+ if (action->watchers == NULL)
+ g_hash_table_remove (muxer->observed_actions, action->fullname);
+
+ break;
+ }
+}
+
+static void
+gtk_action_muxer_weak_notify (gpointer data,
+ GObject *where_the_object_was)
+{
+ Action *action = data;
+
+ gtk_action_muxer_unregister_internal (action, where_the_object_was);
+}
+
+static void
+gtk_action_muxer_register_observer (GtkActionObservable *observable,
+ const gchar *name,
+ GtkActionObserver *observer)
+{
+ GtkActionMuxer *muxer = GTK_ACTION_MUXER (observable);
+ Action *action;
+
+ action = g_hash_table_lookup (muxer->observed_actions, name);
+
+ if (action == NULL)
+ {
+ action = g_slice_new (Action);
+ action->muxer = muxer;
+ action->fullname = g_strdup (name);
+ action->watchers = NULL;
+
+ g_hash_table_insert (muxer->observed_actions, action->fullname, action);
+ }
+
+ action->watchers = g_slist_prepend (action->watchers, observer);
+ g_object_weak_ref (G_OBJECT (observer), gtk_action_muxer_weak_notify, action);
+}
+
+static void
+gtk_action_muxer_unregister_observer (GtkActionObservable *observable,
+ const gchar *name,
+ GtkActionObserver *observer)
+{
+ GtkActionMuxer *muxer = GTK_ACTION_MUXER (observable);
+ Action *action;
+
+ action = g_hash_table_lookup (muxer->observed_actions, name);
+ g_object_weak_unref (G_OBJECT (observer), gtk_action_muxer_weak_notify, action);
+ gtk_action_muxer_unregister_internal (action, observer);
+}
+
+static void
+gtk_action_muxer_free_group (gpointer data)
+{
+ Group *group = data;
+ gint i;
+
+ /* 'for loop' or 'four loop'? */
+ for (i = 0; i < 4; i++)
+ g_signal_handler_disconnect (group->group, group->handler_ids[i]);
+
+ g_object_unref (group->group);
+ g_free (group->prefix);
+
+ g_slice_free (Group, group);
+}
+
+static void
+gtk_action_muxer_free_action (gpointer data)
+{
+ Action *action = data;
+ GSList *it;
+
+ for (it = action->watchers; it; it = it->next)
+ g_object_weak_unref (G_OBJECT (it->data), gtk_action_muxer_weak_notify, action);
+
+ g_slist_free (action->watchers);
+ g_free (action->fullname);
+
+ g_slice_free (Action, action);
+}
+
+static void
+gtk_action_muxer_finalize (GObject *object)
+{
+ GtkActionMuxer *muxer = GTK_ACTION_MUXER (object);
+
+ g_assert_cmpint (g_hash_table_size (muxer->observed_actions), ==, 0);
+ g_hash_table_unref (muxer->observed_actions);
+ g_hash_table_unref (muxer->groups);
+
+ G_OBJECT_CLASS (gtk_action_muxer_parent_class)
+ ->finalize (object);
+}
+
+static void
+gtk_action_muxer_dispose (GObject *object)
+{
+ GtkActionMuxer *muxer = GTK_ACTION_MUXER (object);
+
+ if (muxer->parent)
+ {
+ g_signal_handlers_disconnect_by_func (muxer->parent, gtk_action_muxer_action_added_to_parent, muxer);
+ g_signal_handlers_disconnect_by_func (muxer->parent, gtk_action_muxer_action_removed_from_parent, muxer);
+ g_signal_handlers_disconnect_by_func (muxer->parent, gtk_action_muxer_parent_action_enabled_changed, muxer);
+ g_signal_handlers_disconnect_by_func (muxer->parent, gtk_action_muxer_parent_action_state_changed, muxer);
+
+ g_clear_object (&muxer->parent);
+ }
+
+ g_hash_table_remove_all (muxer->observed_actions);
+
+ G_OBJECT_CLASS (gtk_action_muxer_parent_class)
+ ->dispose (object);
+}
+
+static void
+gtk_action_muxer_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GtkActionMuxer *muxer = GTK_ACTION_MUXER (object);
+
+ switch (property_id)
+ {
+ case PROP_PARENT:
+ g_value_set_object (value, gtk_action_muxer_get_parent (muxer));
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ }
+}
+
+static void
+gtk_action_muxer_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GtkActionMuxer *muxer = GTK_ACTION_MUXER (object);
+
+ switch (property_id)
+ {
+ case PROP_PARENT:
+ gtk_action_muxer_set_parent (muxer, g_value_get_object (value));
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ }
+}
+
+static void
+gtk_action_muxer_init (GtkActionMuxer *muxer)
+{
+ muxer->observed_actions = g_hash_table_new_full (g_str_hash, g_str_equal, NULL, gtk_action_muxer_free_action);
+ muxer->groups = g_hash_table_new_full (g_str_hash, g_str_equal, NULL, gtk_action_muxer_free_group);
+}
+
+static void
+gtk_action_muxer_observable_iface_init (GtkActionObservableInterface *iface)
+{
+ iface->register_observer = gtk_action_muxer_register_observer;
+ iface->unregister_observer = gtk_action_muxer_unregister_observer;
+}
+
+static void
+gtk_action_muxer_group_iface_init (GActionGroupInterface *iface)
+{
+ iface->list_actions = gtk_action_muxer_list_actions;
+ iface->query_action = gtk_action_muxer_query_action;
+ iface->activate_action = gtk_action_muxer_activate_action;
+ iface->change_action_state = gtk_action_muxer_change_action_state;
+}
+
+static void
+gtk_action_muxer_class_init (GObjectClass *class)
+{
+ class->get_property = gtk_action_muxer_get_property;
+ class->set_property = gtk_action_muxer_set_property;
+ class->finalize = gtk_action_muxer_finalize;
+ class->dispose = gtk_action_muxer_dispose;
+
+ properties[PROP_PARENT] = g_param_spec_object ("parent", "Parent",
+ "The parent muxer",
+ GTK_TYPE_ACTION_MUXER,
+ G_PARAM_READWRITE |
+ G_PARAM_STATIC_STRINGS);
+
+ g_object_class_install_properties (class, NUM_PROPERTIES, properties);
+}
+
+/**
+ * gtk_action_muxer_insert:
+ * @muxer: a #GtkActionMuxer
+ * @prefix: the prefix string for the action group
+ * @action_group: a #GActionGroup
+ *
+ * Adds the actions in @action_group to the list of actions provided by
+ * @muxer. @prefix is prefixed to each action name, such that for each
+ * action <varname>x</varname> in @action_group, there is an equivalent
+ * action @prefix<literal>.</literal><varname>x</varname> in @muxer.
+ *
+ * For example, if @prefix is "<literal>app</literal>" and @action_group
+ * contains an action called "<literal>quit</literal>", then @muxer will
+ * now contain an action called "<literal>app.quit</literal>".
+ *
+ * If any #GtkActionObservers are registered for actions in the group,
+ * "action_added" notifications will be emitted, as appropriate.
+ *
+ * @prefix must not contain a dot ('.').
+ */
+void
+gtk_action_muxer_insert (GtkActionMuxer *muxer,
+ const gchar *prefix,
+ GActionGroup *action_group)
+{
+ gchar **actions;
+ Group *group;
+ gint i;
+
+ /* TODO: diff instead of ripout and replace */
+ gtk_action_muxer_remove (muxer, prefix);
+
+ group = g_slice_new (Group);
+ group->muxer = muxer;
+ group->group = g_object_ref (action_group);
+ group->prefix = g_strdup (prefix);
+
+ g_hash_table_insert (muxer->groups, group->prefix, group);
+
+ actions = g_action_group_list_actions (group->group);
+ for (i = 0; actions[i]; i++)
+ gtk_action_muxer_action_added_to_group (group->group, actions[i], group);
+ g_strfreev (actions);
+
+ group->handler_ids[0] = g_signal_connect (group->group, "action-added",
+ G_CALLBACK (gtk_action_muxer_action_added_to_group), group);
+ group->handler_ids[1] = g_signal_connect (group->group, "action-removed",
+ G_CALLBACK (gtk_action_muxer_action_removed_from_group), group);
+ group->handler_ids[2] = g_signal_connect (group->group, "action-enabled-changed",
+ G_CALLBACK (gtk_action_muxer_group_action_enabled_changed), group);
+ group->handler_ids[3] = g_signal_connect (group->group, "action-state-changed",
+ G_CALLBACK (gtk_action_muxer_group_action_state_changed), group);
+}
+
+/**
+ * gtk_action_muxer_remove:
+ * @muxer: a #GtkActionMuxer
+ * @prefix: the prefix of the action group to remove
+ *
+ * Removes a #GActionGroup from the #GtkActionMuxer.
+ *
+ * If any #GtkActionObservers are registered for actions in the group,
+ * "action_removed" notifications will be emitted, as appropriate.
+ */
+void
+gtk_action_muxer_remove (GtkActionMuxer *muxer,
+ const gchar *prefix)
+{
+ Group *group;
+
+ group = g_hash_table_lookup (muxer->groups, prefix);
+
+ if (group != NULL)
+ {
+ gchar **actions;
+ gint i;
+
+ g_hash_table_steal (muxer->groups, prefix);
+
+ actions = g_action_group_list_actions (group->group);
+ for (i = 0; actions[i]; i++)
+ gtk_action_muxer_action_removed_from_group (group->group, actions[i], group);
+ g_strfreev (actions);
+
+ gtk_action_muxer_free_group (group);
+ }
+}
+
+/**
+ * gtk_action_muxer_new:
+ *
+ * Creates a new #GtkActionMuxer.
+ */
+GtkActionMuxer *
+gtk_action_muxer_new (void)
+{
+ return g_object_new (GTK_TYPE_ACTION_MUXER, NULL);
+}
+
+/**
+ * gtk_action_muxer_get_parent:
+ * @muxer: a #GtkActionMuxer
+ *
+ * Returns: (transfer none): the parent of @muxer, or NULL.
+ */
+GtkActionMuxer *
+gtk_action_muxer_get_parent (GtkActionMuxer *muxer)
+{
+ g_return_val_if_fail (GTK_IS_ACTION_MUXER (muxer), NULL);
+
+ return muxer->parent;
+}
+
+/**
+ * gtk_action_muxer_set_parent:
+ * @muxer: a #GtkActionMuxer
+ * @parent: (allow-none): the new parent #GtkActionMuxer
+ *
+ * Sets the parent of @muxer to @parent.
+ */
+void
+gtk_action_muxer_set_parent (GtkActionMuxer *muxer,
+ GtkActionMuxer *parent)
+{
+ g_return_if_fail (GTK_IS_ACTION_MUXER (muxer));
+ g_return_if_fail (parent == NULL || GTK_IS_ACTION_MUXER (parent));
+
+ if (muxer->parent == parent)
+ return;
+
+ if (muxer->parent != NULL)
+ {
+ gchar **actions;
+ gchar **it;
+
+ actions = g_action_group_list_actions (G_ACTION_GROUP (muxer->parent));
+ for (it = actions; *it; it++)
+ gtk_action_muxer_action_removed (muxer, *it);
+ g_strfreev (actions);
+
+ g_signal_handlers_disconnect_by_func (muxer->parent, gtk_action_muxer_action_added_to_parent, muxer);
+ g_signal_handlers_disconnect_by_func (muxer->parent, gtk_action_muxer_action_removed_from_parent, muxer);
+ g_signal_handlers_disconnect_by_func (muxer->parent, gtk_action_muxer_parent_action_enabled_changed, muxer);
+ g_signal_handlers_disconnect_by_func (muxer->parent, gtk_action_muxer_parent_action_state_changed, muxer);
+
+ g_object_unref (muxer->parent);
+ }
+
+ muxer->parent = parent;
+
+ if (muxer->parent != NULL)
+ {
+ gchar **actions;
+ gchar **it;
+
+ g_object_ref (muxer->parent);
+
+ actions = g_action_group_list_actions (G_ACTION_GROUP (muxer->parent));
+ for (it = actions; *it; it++)
+ gtk_action_muxer_action_added (muxer, *it, G_ACTION_GROUP (muxer->parent), *it);
+ g_strfreev (actions);
+
+ g_signal_connect (muxer->parent, "action-added",
+ G_CALLBACK (gtk_action_muxer_action_added_to_parent), muxer);
+ g_signal_connect (muxer->parent, "action-removed",
+ G_CALLBACK (gtk_action_muxer_action_removed_from_parent), muxer);
+ g_signal_connect (muxer->parent, "action-enabled-changed",
+ G_CALLBACK (gtk_action_muxer_parent_action_enabled_changed), muxer);
+ g_signal_connect (muxer->parent, "action-state-changed",
+ G_CALLBACK (gtk_action_muxer_parent_action_state_changed), muxer);
+ }
+
+ g_object_notify_by_pspec (G_OBJECT (muxer), properties[PROP_PARENT]);
+}
diff --git a/libqmenumodel/src/gtk/gtkactionmuxer.h b/libqmenumodel/src/gtk/gtkactionmuxer.h
new file mode 100644
index 0000000..4014830
--- /dev/null
+++ b/libqmenumodel/src/gtk/gtkactionmuxer.h
@@ -0,0 +1,52 @@
+/*
+ * Copyright © 2011 Canonical Limited
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the licence, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Author: Ryan Lortie <desrt@desrt.ca>
+ */
+
+#ifndef __GTK_ACTION_MUXER_H__
+#define __GTK_ACTION_MUXER_H__
+
+#include <gio/gio.h>
+
+G_BEGIN_DECLS
+
+#define GTK_TYPE_ACTION_MUXER (gtk_action_muxer_get_type ())
+#define GTK_ACTION_MUXER(inst) (G_TYPE_CHECK_INSTANCE_CAST ((inst), \
+ GTK_TYPE_ACTION_MUXER, GtkActionMuxer))
+#define GTK_IS_ACTION_MUXER(inst) (G_TYPE_CHECK_INSTANCE_TYPE ((inst), \
+ GTK_TYPE_ACTION_MUXER))
+
+typedef struct _GtkActionMuxer GtkActionMuxer;
+
+GType gtk_action_muxer_get_type (void);
+GtkActionMuxer * gtk_action_muxer_new (void);
+
+void gtk_action_muxer_insert (GtkActionMuxer *muxer,
+ const gchar *prefix,
+ GActionGroup *action_group);
+
+void gtk_action_muxer_remove (GtkActionMuxer *muxer,
+ const gchar *prefix);
+
+GtkActionMuxer * gtk_action_muxer_get_parent (GtkActionMuxer *muxer);
+
+void gtk_action_muxer_set_parent (GtkActionMuxer *muxer,
+ GtkActionMuxer *parent);
+
+G_END_DECLS
+
+#endif /* __GTK_ACTION_MUXER_H__ */
diff --git a/libqmenumodel/src/gtk/gtkactionobservable.c b/libqmenumodel/src/gtk/gtkactionobservable.c
new file mode 100644
index 0000000..ab90df2
--- /dev/null
+++ b/libqmenumodel/src/gtk/gtkactionobservable.c
@@ -0,0 +1,78 @@
+/*
+ * Copyright © 2011 Canonical Limited
+ *
+ * This library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * licence or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Authors: Ryan Lortie <desrt@desrt.ca>
+ */
+
+#include "config.h"
+
+#include "gtkactionobservable.h"
+
+G_DEFINE_INTERFACE (GtkActionObservable, gtk_action_observable, G_TYPE_OBJECT)
+
+/*
+ * SECTION:gtkactionobserable
+ * @short_description: an interface implemented by objects that report
+ * changes to actions
+ */
+
+void
+gtk_action_observable_default_init (GtkActionObservableInterface *iface)
+{
+}
+
+/**
+ * gtk_action_observable_register_observer:
+ * @observable: a #GtkActionObservable
+ * @action_name: the name of the action
+ * @observer: the #GtkActionObserver to which the events will be reported
+ *
+ * Registers @observer as being interested in changes to @action_name on
+ * @observable.
+ */
+void
+gtk_action_observable_register_observer (GtkActionObservable *observable,
+ const gchar *action_name,
+ GtkActionObserver *observer)
+{
+ g_return_if_fail (GTK_IS_ACTION_OBSERVABLE (observable));
+
+ GTK_ACTION_OBSERVABLE_GET_IFACE (observable)
+ ->register_observer (observable, action_name, observer);
+}
+
+/**
+ * gtk_action_observable_unregister_observer:
+ * @observable: a #GtkActionObservable
+ * @action_name: the name of the action
+ * @observer: the #GtkActionObserver to which the events will be reported
+ *
+ * Removes the registration of @observer as being interested in changes
+ * to @action_name on @observable.
+ *
+ * If the observer was registered multiple times, it must be
+ * unregistered an equal number of times.
+ */
+void
+gtk_action_observable_unregister_observer (GtkActionObservable *observable,
+ const gchar *action_name,
+ GtkActionObserver *observer)
+{
+ g_return_if_fail (GTK_IS_ACTION_OBSERVABLE (observable));
+
+ GTK_ACTION_OBSERVABLE_GET_IFACE (observable)
+ ->unregister_observer (observable, action_name, observer);
+}
diff --git a/libqmenumodel/src/gtk/gtkactionobservable.h b/libqmenumodel/src/gtk/gtkactionobservable.h
new file mode 100644
index 0000000..aa1514b
--- /dev/null
+++ b/libqmenumodel/src/gtk/gtkactionobservable.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright © 2011 Canonical Limited
+ *
+ * This library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * licence or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Authors: Ryan Lortie <desrt@desrt.ca>
+ */
+
+#ifndef __GTK_ACTION_OBSERVABLE_H__
+#define __GTK_ACTION_OBSERVABLE_H__
+
+#include "gtkactionobserver.h"
+
+G_BEGIN_DECLS
+
+#define GTK_TYPE_ACTION_OBSERVABLE (gtk_action_observable_get_type ())
+#define GTK_ACTION_OBSERVABLE(inst) (G_TYPE_CHECK_INSTANCE_CAST ((inst), \
+ GTK_TYPE_ACTION_OBSERVABLE, GtkActionObservable))
+#define GTK_IS_ACTION_OBSERVABLE(inst) (G_TYPE_CHECK_INSTANCE_TYPE ((inst), \
+ GTK_TYPE_ACTION_OBSERVABLE))
+#define GTK_ACTION_OBSERVABLE_GET_IFACE(inst) (G_TYPE_INSTANCE_GET_INTERFACE ((inst), \
+ GTK_TYPE_ACTION_OBSERVABLE, \
+ GtkActionObservableInterface))
+
+typedef struct _GtkActionObservableInterface GtkActionObservableInterface;
+
+struct _GtkActionObservableInterface
+{
+ GTypeInterface g_iface;
+
+ void (* register_observer) (GtkActionObservable *observable,
+ const gchar *action_name,
+ GtkActionObserver *observer);
+ void (* unregister_observer) (GtkActionObservable *observable,
+ const gchar *action_name,
+ GtkActionObserver *observer);
+};
+
+GType gtk_action_observable_get_type (void);
+void gtk_action_observable_register_observer (GtkActionObservable *observable,
+ const gchar *action_name,
+ GtkActionObserver *observer);
+void gtk_action_observable_unregister_observer (GtkActionObservable *observable,
+ const gchar *action_name,
+ GtkActionObserver *observer);
+
+G_END_DECLS
+
+#endif /* __GTK_ACTION_OBSERVABLE_H__ */
diff --git a/libqmenumodel/src/gtk/gtkactionobserver.c b/libqmenumodel/src/gtk/gtkactionobserver.c
new file mode 100644
index 0000000..cf70b20
--- /dev/null
+++ b/libqmenumodel/src/gtk/gtkactionobserver.c
@@ -0,0 +1,159 @@
+/*
+ * Copyright © 2011 Canonical Limited
+ *
+ * This library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * licence or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Authors: Ryan Lortie <desrt@desrt.ca>
+ */
+
+#include "config.h"
+
+#include "gtkactionobserver.h"
+
+G_DEFINE_INTERFACE (GtkActionObserver, gtk_action_observer, G_TYPE_OBJECT)
+
+/**
+ * SECTION:gtkactionobserver
+ * @short_description: an interface implemented by objects that are
+ * interested in monitoring actions for changes
+ *
+ * GtkActionObserver is a simple interface allowing objects that wish to
+ * be notified of changes to actions to be notified of those changes.
+ *
+ * It is also possible to monitor changes to action groups using
+ * #GObject signals, but there are a number of reasons that this
+ * approach could become problematic:
+ *
+ * - there are four separate signals that must be manually connected
+ * and disconnected
+ *
+ * - when a large number of different observers wish to monitor a
+ * (usually disjoint) set of actions within the same action group,
+ * there is only one way to avoid having all notifications delivered
+ * to all observers: signal detail. In order to use signal detail,
+ * each action name must be quarked, which is not always practical.
+ *
+ * - even if quarking is acceptable, #GObject signal details are
+ * implemented by scanning a linked list, so there is no real
+ * decrease in complexity
+ */
+
+void
+gtk_action_observer_default_init (GtkActionObserverInterface *class)
+{
+}
+
+/**
+ * gtk_action_observer_action_added:
+ * @observer: a #GtkActionObserver
+ * @observable: the source of the event
+ * @action_name: the name of the action
+ * @enabled: %TRUE if the action is now enabled
+ * @parameter_type: the parameter type for action invocations, or %NULL
+ * if no parameter is required
+ * @state: the current state of the action, or %NULL if the action is
+ * stateless
+ *
+ * This function is called when an action that the observer is
+ * registered to receive events for is added.
+ *
+ * This function should only be called by objects with which the
+ * observer has explicitly registered itself to receive events.
+ */
+void
+gtk_action_observer_action_added (GtkActionObserver *observer,
+ GtkActionObservable *observable,
+ const gchar *action_name,
+ const GVariantType *parameter_type,
+ gboolean enabled,
+ GVariant *state)
+{
+ g_return_if_fail (GTK_IS_ACTION_OBSERVER (observer));
+
+ GTK_ACTION_OBSERVER_GET_IFACE (observer)
+ ->action_added (observer, observable, action_name, parameter_type, enabled, state);
+}
+
+/**
+ * gtk_action_observer_action_enabled_changed:
+ * @observer: a #GtkActionObserver
+ * @observable: the source of the event
+ * @action_name: the name of the action
+ * @enabled: %TRUE if the action is now enabled
+ *
+ * This function is called when an action that the observer is
+ * registered to receive events for becomes enabled or disabled.
+ *
+ * This function should only be called by objects with which the
+ * observer has explicitly registered itself to receive events.
+ */
+void
+gtk_action_observer_action_enabled_changed (GtkActionObserver *observer,
+ GtkActionObservable *observable,
+ const gchar *action_name,
+ gboolean enabled)
+{
+ g_return_if_fail (GTK_IS_ACTION_OBSERVER (observer));
+
+ GTK_ACTION_OBSERVER_GET_IFACE (observer)
+ ->action_enabled_changed (observer, observable, action_name, enabled);
+}
+
+/**
+ * gtk_action_observer_action_state_changed:
+ * @observer: a #GtkActionObserver
+ * @observable: the source of the event
+ * @action_name: the name of the action
+ * @state: the new state of the action
+ *
+ * This function is called when an action that the observer is
+ * registered to receive events for changes to its state.
+ *
+ * This function should only be called by objects with which the
+ * observer has explicitly registered itself to receive events.
+ */
+void
+gtk_action_observer_action_state_changed (GtkActionObserver *observer,
+ GtkActionObservable *observable,
+ const gchar *action_name,
+ GVariant *state)
+{
+ g_return_if_fail (GTK_IS_ACTION_OBSERVER (observer));
+
+ GTK_ACTION_OBSERVER_GET_IFACE (observer)
+ ->action_state_changed (observer, observable, action_name, state);
+}
+
+/**
+ * gtk_action_observer_action_removed:
+ * @observer: a #GtkActionObserver
+ * @observable: the source of the event
+ * @action_name: the name of the action
+ *
+ * This function is called when an action that the observer is
+ * registered to receive events for is removed.
+ *
+ * This function should only be called by objects with which the
+ * observer has explicitly registered itself to receive events.
+ */
+void
+gtk_action_observer_action_removed (GtkActionObserver *observer,
+ GtkActionObservable *observable,
+ const gchar *action_name)
+{
+ g_return_if_fail (GTK_IS_ACTION_OBSERVER (observer));
+
+ GTK_ACTION_OBSERVER_GET_IFACE (observer)
+ ->action_removed (observer, observable, action_name);
+}
diff --git a/libqmenumodel/src/gtk/gtkactionobserver.h b/libqmenumodel/src/gtk/gtkactionobserver.h
new file mode 100644
index 0000000..83629a7
--- /dev/null
+++ b/libqmenumodel/src/gtk/gtkactionobserver.h
@@ -0,0 +1,83 @@
+/*
+ * Copyright © 2011 Canonical Limited
+ *
+ * This library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * licence or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Authors: Ryan Lortie <desrt@desrt.ca>
+ */
+
+#ifndef __GTK_ACTION_OBSERVER_H__
+#define __GTK_ACTION_OBSERVER_H__
+
+#include <gio/gio.h>
+
+G_BEGIN_DECLS
+
+#define GTK_TYPE_ACTION_OBSERVER (gtk_action_observer_get_type ())
+#define GTK_ACTION_OBSERVER(inst) (G_TYPE_CHECK_INSTANCE_CAST ((inst), \
+ GTK_TYPE_ACTION_OBSERVER, GtkActionObserver))
+#define GTK_IS_ACTION_OBSERVER(inst) (G_TYPE_CHECK_INSTANCE_TYPE ((inst), \
+ GTK_TYPE_ACTION_OBSERVER))
+#define GTK_ACTION_OBSERVER_GET_IFACE(inst) (G_TYPE_INSTANCE_GET_INTERFACE ((inst), \
+ GTK_TYPE_ACTION_OBSERVER, GtkActionObserverInterface))
+
+typedef struct _GtkActionObserverInterface GtkActionObserverInterface;
+typedef struct _GtkActionObservable GtkActionObservable;
+typedef struct _GtkActionObserver GtkActionObserver;
+
+struct _GtkActionObserverInterface
+{
+ GTypeInterface g_iface;
+
+ void (* action_added) (GtkActionObserver *observer,
+ GtkActionObservable *observable,
+ const gchar *action_name,
+ const GVariantType *parameter_type,
+ gboolean enabled,
+ GVariant *state);
+ void (* action_enabled_changed) (GtkActionObserver *observer,
+ GtkActionObservable *observable,
+ const gchar *action_name,
+ gboolean enabled);
+ void (* action_state_changed) (GtkActionObserver *observer,
+ GtkActionObservable *observable,
+ const gchar *action_name,
+ GVariant *state);
+ void (* action_removed) (GtkActionObserver *observer,
+ GtkActionObservable *observable,
+ const gchar *action_name);
+};
+
+GType gtk_action_observer_get_type (void);
+void gtk_action_observer_action_added (GtkActionObserver *observer,
+ GtkActionObservable *observable,
+ const gchar *action_name,
+ const GVariantType *parameter_type,
+ gboolean enabled,
+ GVariant *state);
+void gtk_action_observer_action_enabled_changed (GtkActionObserver *observer,
+ GtkActionObservable *observable,
+ const gchar *action_name,
+ gboolean enabled);
+void gtk_action_observer_action_state_changed (GtkActionObserver *observer,
+ GtkActionObservable *observable,
+ const gchar *action_name,
+ GVariant *state);
+void gtk_action_observer_action_removed (GtkActionObserver *observer,
+ GtkActionObservable *observable,
+ const gchar *action_name);
+
+G_END_DECLS
+
+#endif /* __GTK_ACTION_OBSERVER_H__ */
diff --git a/libqmenumodel/src/gtk/gtkmenutracker.c b/libqmenumodel/src/gtk/gtkmenutracker.c
new file mode 100644
index 0000000..ab369ab
--- /dev/null
+++ b/libqmenumodel/src/gtk/gtkmenutracker.c
@@ -0,0 +1,495 @@
+/*
+ * Copyright © 2013 Canonical Limited
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the licence, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ * Author: Ryan Lortie <desrt@desrt.ca>
+ */
+
+#include "config.h"
+
+#include "gtkmenutracker.h"
+
+/**
+ * SECTION:gtkmenutracker
+ * @Title: GtkMenuTracker
+ * @Short_description: A helper class for interpreting #GMenuModel
+ *
+ * #GtkMenuTracker is a simple object to ease implementations of #GMenuModel.
+ * Given a #GtkActionObservable (usually a #GActionMuxer) along with a
+ * #GMenuModel, it will tell you which menu items to create and where to place
+ * them. If a menu item is removed, it will tell you the position of the menu
+ * item to remove.
+ *
+ * Using #GtkMenuTracker is fairly simple. The only guarantee you must make
+ * to #GtkMenuTracker is that you must obey all insert signals and track the
+ * position of items that #GtkMenuTracker gives you. That is, #GtkMenuTracker
+ * expects positions of all the latter items to change when it calls your
+ * insertion callback with an early position, as it may ask you to remove
+ * an item with a readjusted position later.
+ *
+ * #GtkMenuTracker will give you a #GtkMenuTrackerItem in your callback. You
+ * must hold onto this object until a remove signal is emitted. This item
+ * represents a single menu item, which can be one of three classes: normal item,
+ * separator, or submenu.
+ *
+ * Certain properties on the #GtkMenuTrackerItem are mutable, and you must
+ * listen for changes in the item. For more details, see the documentation
+ * for #GtkMenuTrackerItem along with https://live.gnome.org/GApplication/GMenuModel.
+ *
+ * The idea of @with_separators is for special cases where menu models may
+ * be tracked in places where separators are not available, like in toplevel
+ * "File", "Edit" menu bars. Ignoring separator items is wrong, as #GtkMenuTracker
+ * expects the position to change, so we must tell #GtkMenuTracker to ignore
+ * separators itself.
+ */
+
+typedef struct _GtkMenuTrackerSection GtkMenuTrackerSection;
+
+struct _GtkMenuTracker
+{
+ GtkActionObservable *observable;
+ GtkMenuTrackerInsertFunc insert_func;
+ GtkMenuTrackerRemoveFunc remove_func;
+ gpointer user_data;
+
+ GtkMenuTrackerSection *toplevel;
+};
+
+struct _GtkMenuTrackerSection
+{
+ GMenuModel *model;
+ GSList *items;
+ gchar *action_namespace;
+
+ guint with_separators : 1;
+ guint has_separator : 1;
+
+ gulong handler;
+};
+
+static GtkMenuTrackerSection * gtk_menu_tracker_section_new (GtkMenuTracker *tracker,
+ GMenuModel *model,
+ gboolean with_separators,
+ gint offset,
+ const gchar *action_namespace);
+static void gtk_menu_tracker_section_free (GtkMenuTrackerSection *section);
+
+static GtkMenuTrackerSection *
+gtk_menu_tracker_section_find_model (GtkMenuTrackerSection *section,
+ GMenuModel *model,
+ gint *offset)
+{
+ GSList *item;
+
+ if (section->has_separator)
+ (*offset)++;
+
+ if (section->model == model)
+ return section;
+
+ for (item = section->items; item; item = item->next)
+ {
+ GtkMenuTrackerSection *subsection = item->data;
+
+ if (subsection)
+ {
+ GtkMenuTrackerSection *found_section;
+
+ found_section = gtk_menu_tracker_section_find_model (subsection, model, offset);
+
+ if (found_section)
+ return found_section;
+ }
+ else
+ (*offset)++;
+ }
+
+ return FALSE;
+}
+
+/* this is responsible for syncing the showing of a separator for a
+ * single subsection (and its children).
+ *
+ * we only ever show separators if we have _actual_ children (ie: we do
+ * not show a separator if the section contains only empty child
+ * sections). it's difficult to determine this on-the-fly, so we have
+ * this separate function to come back later and figure it out.
+ *
+ * 'section' is that section.
+ *
+ * 'tracker' is passed in so that we can emit callbacks when we decide
+ * to add/remove separators.
+ *
+ * 'offset' is passed in so we know which position to emit in our
+ * callbacks. ie: if we add a separator right at the top of this
+ * section then we would emit it with this offset. deeper inside, we
+ * adjust accordingly.
+ *
+ * could_have_separator is true in two situations:
+ *
+ * - our parent section had with_separators defined and we are not the
+ * first section (ie: we should add a separator if we have content in
+ * order to divide us from the items above)
+ *
+ * - if we had a 'label' attribute set for this section
+ *
+ * parent_model and parent_index are passed in so that we can give them
+ * to the insertion callback so that it can see the label (and anything
+ * else that happens to be defined on the section).
+ *
+ * we iterate each item in ourselves. for subsections, we recursively
+ * run ourselves to sync separators. after we are done, we notice if we
+ * have any items in us or if we are completely empty and sync if our
+ * separator is shown or not.
+ */
+static gint
+gtk_menu_tracker_section_sync_separators (GtkMenuTrackerSection *section,
+ GtkMenuTracker *tracker,
+ gint offset,
+ gboolean could_have_separator,
+ GMenuModel *parent_model,
+ gint parent_index)
+{
+ gboolean should_have_separator;
+ gint n_items = 0;
+ GSList *item;
+ gint i = 0;
+
+ for (item = section->items; item; item = item->next)
+ {
+ GtkMenuTrackerSection *subsection = item->data;
+
+ if (subsection)
+ {
+ gboolean could_have_separator;
+
+ could_have_separator = (section->with_separators && i > 0) ||
+ g_menu_model_get_item_attribute (section->model, i, "label", "s", NULL);
+
+ n_items += gtk_menu_tracker_section_sync_separators (subsection, tracker, offset + n_items,
+ could_have_separator, section->model, i);
+ }
+ else
+ n_items++;
+
+ i++;
+ }
+
+ should_have_separator = could_have_separator && n_items != 0;
+
+ if (should_have_separator > section->has_separator)
+ {
+ /* Add a separator */
+ GtkMenuTrackerItem *item;
+
+ item = _gtk_menu_tracker_item_new (tracker->observable, parent_model, parent_index, NULL, TRUE);
+ (* tracker->insert_func) (item, offset, tracker->user_data);
+ g_object_unref (item);
+
+ section->has_separator = TRUE;
+ }
+ else if (should_have_separator < section->has_separator)
+ {
+ /* Remove a separator */
+ (* tracker->remove_func) (offset, tracker->user_data);
+ section->has_separator = FALSE;
+ }
+
+ n_items += section->has_separator;
+
+ return n_items;
+}
+
+static gint
+gtk_menu_tracker_section_measure (GtkMenuTrackerSection *section)
+{
+ GSList *item;
+ gint n_items;
+
+ if (section == NULL)
+ return 1;
+
+ n_items = 0;
+
+ if (section->has_separator)
+ n_items++;
+
+ for (item = section->items; item; item = item->next)
+ n_items += gtk_menu_tracker_section_measure (item->data);
+
+ return n_items;
+}
+
+static void
+gtk_menu_tracker_remove_items (GtkMenuTracker *tracker,
+ GSList **change_point,
+ gint offset,
+ gint n_items)
+{
+ gint i;
+
+ for (i = 0; i < n_items; i++)
+ {
+ GtkMenuTrackerSection *subsection;
+ gint n;
+
+ subsection = (*change_point)->data;
+ *change_point = g_slist_delete_link (*change_point, *change_point);
+
+ n = gtk_menu_tracker_section_measure (subsection);
+ gtk_menu_tracker_section_free (subsection);
+
+ while (n--)
+ (* tracker->remove_func) (offset, tracker->user_data);
+ }
+}
+
+static void
+gtk_menu_tracker_add_items (GtkMenuTracker *tracker,
+ GtkMenuTrackerSection *section,
+ GSList **change_point,
+ gint offset,
+ GMenuModel *model,
+ gint position,
+ gint n_items)
+{
+ while (n_items--)
+ {
+ GMenuModel *submenu;
+
+ submenu = g_menu_model_get_item_link (model, position + n_items, G_MENU_LINK_SECTION);
+ g_assert (submenu != model);
+ if (submenu != NULL)
+ {
+ GtkMenuTrackerSection *subsection;
+ gchar *action_namespace = NULL;
+
+ g_menu_model_get_item_attribute (model, position + n_items,
+ G_MENU_ATTRIBUTE_ACTION_NAMESPACE, "s", &action_namespace);
+
+ if (section->action_namespace)
+ {
+ gchar *namespace;
+
+ namespace = g_strjoin (".", section->action_namespace, action_namespace, NULL);
+ subsection = gtk_menu_tracker_section_new (tracker, submenu, FALSE, offset, namespace);
+ g_free (namespace);
+ }
+ else
+ subsection = gtk_menu_tracker_section_new (tracker, submenu, FALSE, offset, section->action_namespace);
+
+ *change_point = g_slist_prepend (*change_point, subsection);
+ g_free (action_namespace);
+ g_object_unref (submenu);
+ }
+ else
+ {
+ GtkMenuTrackerItem *item;
+
+ item = _gtk_menu_tracker_item_new (tracker->observable, model, position + n_items,
+ section->action_namespace, FALSE);
+ (* tracker->insert_func) (item, offset, tracker->user_data);
+ g_object_unref (item);
+
+ *change_point = g_slist_prepend (*change_point, NULL);
+ }
+ }
+}
+
+static void
+gtk_menu_tracker_model_changed (GMenuModel *model,
+ gint position,
+ gint removed,
+ gint added,
+ gpointer user_data)
+{
+ GtkMenuTracker *tracker = user_data;
+ GtkMenuTrackerSection *section;
+ GSList **change_point;
+ gint offset = 0;
+ gint i;
+
+ /* First find which section the changed model corresponds to, and the
+ * position of that section within the overall menu.
+ */
+ section = gtk_menu_tracker_section_find_model (tracker->toplevel, model, &offset);
+
+ /* Next, seek through that section to the change point. This gives us
+ * the correct GSList** to make the change to and also finds the final
+ * offset at which we will make the changes (by measuring the number
+ * of items within each item of the section before the change point).
+ */
+ change_point = &section->items;
+ for (i = 0; i < position; i++)
+ {
+ offset += gtk_menu_tracker_section_measure ((*change_point)->data);
+ change_point = &(*change_point)->next;
+ }
+
+ /* We remove items in order and add items in reverse order. This
+ * means that the offset used for all inserts and removes caused by a
+ * single change will be the same.
+ *
+ * This also has a performance advantage: GtkMenuShell stores the
+ * menu items in a linked list. In the case where we are creating a
+ * menu for the first time, adding the items in reverse order means
+ * that we only ever insert at index zero, prepending the list. This
+ * means that we can populate in O(n) time instead of O(n^2) that we
+ * would do by appending.
+ */
+ gtk_menu_tracker_remove_items (tracker, change_point, offset, removed);
+ gtk_menu_tracker_add_items (tracker, section, change_point, offset, model, position, added);
+
+ /* The offsets for insertion/removal of separators will be all over
+ * the place, however...
+ */
+ gtk_menu_tracker_section_sync_separators (tracker->toplevel, tracker, 0, FALSE, NULL, 0);
+}
+
+static void
+gtk_menu_tracker_section_free (GtkMenuTrackerSection *section)
+{
+ if (section == NULL)
+ return;
+
+ g_signal_handler_disconnect (section->model, section->handler);
+ g_slist_free_full (section->items, (GDestroyNotify) gtk_menu_tracker_section_free);
+ g_free (section->action_namespace);
+ g_object_unref (section->model);
+ g_slice_free (GtkMenuTrackerSection, section);
+}
+
+static GtkMenuTrackerSection *
+gtk_menu_tracker_section_new (GtkMenuTracker *tracker,
+ GMenuModel *model,
+ gboolean with_separators,
+ gint offset,
+ const gchar *action_namespace)
+{
+ GtkMenuTrackerSection *section;
+
+ section = g_slice_new0 (GtkMenuTrackerSection);
+ section->model = g_object_ref (model);
+ section->with_separators = with_separators;
+ section->action_namespace = g_strdup (action_namespace);
+
+ gtk_menu_tracker_add_items (tracker, section, &section->items, offset, model, 0, g_menu_model_get_n_items (model));
+ section->handler = g_signal_connect (model, "items-changed", G_CALLBACK (gtk_menu_tracker_model_changed), tracker);
+
+ return section;
+}
+
+/*< private >
+ * gtk_menu_tracker_new:
+ * @model: the model to flatten
+ * @with_separators: if the toplevel should have separators (ie: TRUE
+ * for menus, FALSE for menubars)
+ * @action_namespace: the passed-in action namespace
+ * @insert_func: insert callback
+ * @remove_func: remove callback
+ * @user_data user data for callbacks
+ *
+ * Creates a GtkMenuTracker for @model, holding a ref on @model for as
+ * long as the tracker is alive.
+ *
+ * This flattens out the model, merging sections and inserting
+ * separators where appropriate. It monitors for changes and performs
+ * updates on the fly. It also handles action_namespace for subsections
+ * (but you will need to handle it yourself for submenus).
+ *
+ * When the tracker is first created, @insert_func will be called many
+ * times to populate the menu with the initial contents of @model
+ * (unless it is empty), before gtk_menu_tracker_new() returns. For
+ * this reason, the menu that is using the tracker ought to be empty
+ * when it creates the tracker.
+ *
+ * Future changes to @model will result in more calls to @insert_func
+ * and @remove_func.
+ *
+ * The position argument to both functions is the linear 0-based
+ * position in the menu at which the item in question should be inserted
+ * or removed.
+ *
+ * For @insert_func, @model and @item_index are used to get the
+ * information about the menu item to insert. @action_namespace is the
+ * action namespace that actions referred to from that item should place
+ * themselves in. Note that if the item is a submenu and the
+ * "action-namespace" attribute is defined on the item, it will _not_ be
+ * applied to the @action_namespace argument as it is meant for the
+ * items inside of the submenu, not the submenu item itself.
+ *
+ * @is_separator is set to %TRUE in case the item being added is a
+ * separator. @model and @item_index will still be meaningfully set in
+ * this case -- to the section menu item corresponding to the separator.
+ * This is useful if the section specifies a label, for example. If
+ * there is an "action-namespace" attribute on this menu item then it
+ * should be ignored by the consumer because #GtkMenuTracker has already
+ * handled it.
+ *
+ * When using #GtkMenuTracker there is no need to hold onto @model or
+ * monitor it for changes. The model will be unreffed when
+ * gtk_menu_tracker_free() is called.
+ */
+GtkMenuTracker *
+gtk_menu_tracker_new (GtkActionObservable *observable,
+ GMenuModel *model,
+ gboolean with_separators,
+ const gchar *action_namespace,
+ GtkMenuTrackerInsertFunc insert_func,
+ GtkMenuTrackerRemoveFunc remove_func,
+ gpointer user_data)
+{
+ GtkMenuTracker *tracker;
+
+ tracker = g_slice_new (GtkMenuTracker);
+ tracker->observable = g_object_ref (observable);
+ tracker->insert_func = insert_func;
+ tracker->remove_func = remove_func;
+ tracker->user_data = user_data;
+
+ tracker->toplevel = gtk_menu_tracker_section_new (tracker, model, with_separators, 0, action_namespace);
+ gtk_menu_tracker_section_sync_separators (tracker->toplevel, tracker, 0, FALSE, NULL, 0);
+
+ return tracker;
+}
+
+GtkMenuTracker *
+gtk_menu_tracker_new_for_item_submenu (GtkMenuTrackerItem *item,
+ GtkMenuTrackerInsertFunc insert_func,
+ GtkMenuTrackerRemoveFunc remove_func,
+ gpointer user_data)
+{
+ return gtk_menu_tracker_new (_gtk_menu_tracker_item_get_observable (item),
+ _gtk_menu_tracker_item_get_submenu (item),
+ TRUE,
+ _gtk_menu_tracker_item_get_submenu_namespace (item),
+ insert_func, remove_func, user_data);
+}
+
+/*< private >
+ * gtk_menu_tracker_free:
+ * @tracker: a #GtkMenuTracker
+ *
+ * Frees the tracker, ...
+ */
+void
+gtk_menu_tracker_free (GtkMenuTracker *tracker)
+{
+ gtk_menu_tracker_section_free (tracker->toplevel);
+ g_object_unref (tracker->observable);
+ g_slice_free (GtkMenuTracker, tracker);
+}
diff --git a/libqmenumodel/src/gtk/gtkmenutracker.h b/libqmenumodel/src/gtk/gtkmenutracker.h
new file mode 100644
index 0000000..96370ad
--- /dev/null
+++ b/libqmenumodel/src/gtk/gtkmenutracker.h
@@ -0,0 +1,52 @@
+/*
+ * Copyright © 2013 Canonical Limited
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the licence, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ * Author: Ryan Lortie <desrt@desrt.ca>
+ */
+
+#ifndef __GTK_MENU_TRACKER_H__
+#define __GTK_MENU_TRACKER_H__
+
+#include "gtkmenutrackeritem.h"
+
+typedef struct _GtkMenuTracker GtkMenuTracker;
+
+typedef void (* GtkMenuTrackerInsertFunc) (GtkMenuTrackerItem *item,
+ gint position,
+ gpointer user_data);
+
+typedef void (* GtkMenuTrackerRemoveFunc) (gint position,
+ gpointer user_data);
+
+
+GtkMenuTracker * gtk_menu_tracker_new (GtkActionObservable *observer,
+ GMenuModel *model,
+ gboolean with_separators,
+ const gchar *action_namespace,
+ GtkMenuTrackerInsertFunc insert_func,
+ GtkMenuTrackerRemoveFunc remove_func,
+ gpointer user_data);
+
+GtkMenuTracker * gtk_menu_tracker_new_for_item_submenu (GtkMenuTrackerItem *item,
+ GtkMenuTrackerInsertFunc insert_func,
+ GtkMenuTrackerRemoveFunc remove_func,
+ gpointer user_data);
+
+void gtk_menu_tracker_free (GtkMenuTracker *tracker);
+
+#endif /* __GTK_MENU_TRACKER_H__ */
diff --git a/libqmenumodel/src/gtk/gtkmenutrackeritem.c b/libqmenumodel/src/gtk/gtkmenutrackeritem.c
new file mode 100644
index 0000000..2d712a1
--- /dev/null
+++ b/libqmenumodel/src/gtk/gtkmenutrackeritem.c
@@ -0,0 +1,788 @@
+/*
+ * Copyright © 2013 Canonical Limited
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the licence, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ * Author: Ryan Lortie <desrt@desrt.ca>
+ */
+
+#include "config.h"
+
+#include "gtkmenutrackeritem.h"
+
+/**
+ * SECTION:gtkmenutrackeritem
+ * @Title: GtkMenuTrackerItem
+ * @Short_description: Small helper for model menu items
+ *
+ * A #GtkMenuTrackerItem is a small helper class used by #GtkMenuTracker to
+ * represent menu items. It has one of three classes: normal item, separator,
+ * or submenu.
+ *
+ * If an item is one of the non-normal classes (submenu, separator), only the
+ * label of the item needs to be respected. Otherwise, all the properties
+ * of the item contribute to the item's appearance and state.
+ *
+ * Implementing the appearance of the menu item is up to toolkits, and certain
+ * toolkits may choose to ignore certain properties, like icon or accel. The
+ * role of the item determines its accessibility role, along with its
+ * decoration if the GtkMenuTrackerItem::toggled property is true. As an
+ * example, if the item has the role %GTK_MENU_TRACKER_ITEM_ROLE_CHECK and
+ * GtkMenuTrackerItem::toggled is %FALSE, its accessible role should be that of
+ * a check menu item, and no decoration should be drawn. But if
+ * GtkMenuTrackerItem::toggled is %TRUE, a checkmark should be drawn.
+ *
+ * All properties except for the two class-determining properties,
+ * GtkMenuTrackerItem::is-separator and GtkMenuTrackerItem::has-submenu are
+ * allowed to change, so listen to the notify signals to update your item's
+ * appearance. When using a GObject library, this can conveniently be done
+ * with g_object_bind_property() and #GBinding, and this is how this is
+ * implemented in GTK+; the appearance side is implemented in #GtkModelMenuItem.
+ *
+ * When an item is clicked, simply call gtk_menu_tracker_item_activated() in
+ * response. The #GtkMenuTrackerItem will take care of everything related to
+ * activating the item and will itself update the state of all items in
+ * response.
+ *
+ * Submenus are a special case of menu item. When an item is a submenu, you
+ * should create a submenu for it with gtk_menu_tracker_new_item_for_submenu(),
+ * and apply the same menu tracking logic you would for a toplevel menu.
+ * Applications using submenus may want to lazily build their submenus in
+ * response to the user clicking on it, as building a submenu may be expensive.
+ *
+ * Thus, the submenu has two special controls -- the submenu's visibility
+ * should be controlled by the GtkMenuTrackerItem::submenu-shown property,
+ * and if a user clicks on the submenu, do not immediately show the menu,
+ * but call gtk_menu_tracker_item_request_submenu_shown() and wait for the
+ * GtkMenuTrackerItem::submenu-shown property to update. If the user navigates,
+ * the application may want to be notified so it can cancel the expensive
+ * operation that it was using to build the submenu. Thus,
+ * gtk_menu_tracker_item_request_submenu_shown() takes a boolean parameter.
+ * Use %TRUE when the user wants to open the submenu, and %FALSE when the
+ * user wants to close the submenu.
+ */
+
+typedef GObjectClass GtkMenuTrackerItemClass;
+
+struct _GtkMenuTrackerItem
+{
+ GObject parent_instance;
+
+ GtkActionObservable *observable;
+ gchar *action_namespace;
+ GMenuItem *item;
+ GtkMenuTrackerItemRole role : 4;
+ guint is_separator : 1;
+ guint can_activate : 1;
+ guint sensitive : 1;
+ guint toggled : 1;
+ guint submenu_shown : 1;
+ guint submenu_requested : 1;
+};
+
+enum {
+ PROP_0,
+ PROP_IS_SEPARATOR,
+ PROP_HAS_SUBMENU,
+ PROP_LABEL,
+ PROP_ICON,
+ PROP_SENSITIVE,
+ PROP_VISIBLE,
+ PROP_ROLE,
+ PROP_TOGGLED,
+ PROP_ACCEL,
+ PROP_SUBMENU_SHOWN,
+ N_PROPS
+};
+
+static GParamSpec *gtk_menu_tracker_item_pspecs[N_PROPS];
+
+static void gtk_menu_tracker_item_init_observer_iface (GtkActionObserverInterface *iface);
+G_DEFINE_TYPE_WITH_CODE (GtkMenuTrackerItem, gtk_menu_tracker_item, G_TYPE_OBJECT,
+ G_IMPLEMENT_INTERFACE (GTK_TYPE_ACTION_OBSERVER, gtk_menu_tracker_item_init_observer_iface))
+
+GType
+gtk_menu_tracker_item_role_get_type (void)
+{
+ static gsize gtk_menu_tracker_item_role_type;
+
+ if (g_once_init_enter (&gtk_menu_tracker_item_role_type))
+ {
+ static const GEnumValue values[] = {
+ { GTK_MENU_TRACKER_ITEM_ROLE_NORMAL, "GTK_MENU_TRACKER_ITEM_ROLE_NORMAL", "normal" },
+ { GTK_MENU_TRACKER_ITEM_ROLE_CHECK, "GTK_MENU_TRACKER_ITEM_ROLE_CHECK", "check" },
+ { GTK_MENU_TRACKER_ITEM_ROLE_RADIO, "GTK_MENU_TRACKER_ITEM_ROLE_RADIO", "radio" },
+ { 0, NULL, NULL }
+ };
+ GType type;
+
+ type = g_enum_register_static ("GtkMenuTrackerItemRole", values);
+
+ g_once_init_leave (&gtk_menu_tracker_item_role_type, type);
+ }
+
+ return gtk_menu_tracker_item_role_type;
+}
+
+static void
+gtk_menu_tracker_item_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GtkMenuTrackerItem *self = GTK_MENU_TRACKER_ITEM (object);
+
+ switch (prop_id)
+ {
+ case PROP_IS_SEPARATOR:
+ g_value_set_boolean (value, gtk_menu_tracker_item_get_is_separator (self));
+ break;
+ case PROP_HAS_SUBMENU:
+ g_value_set_boolean (value, gtk_menu_tracker_item_get_has_submenu (self));
+ break;
+ case PROP_LABEL:
+ g_value_set_string (value, gtk_menu_tracker_item_get_label (self));
+ break;
+ case PROP_ICON:
+ g_value_set_object (value, gtk_menu_tracker_item_get_icon (self));
+ break;
+ case PROP_SENSITIVE:
+ g_value_set_boolean (value, gtk_menu_tracker_item_get_sensitive (self));
+ break;
+ case PROP_VISIBLE:
+ g_value_set_boolean (value, gtk_menu_tracker_item_get_visible (self));
+ break;
+ case PROP_ROLE:
+ g_value_set_enum (value, gtk_menu_tracker_item_get_role (self));
+ break;
+ case PROP_TOGGLED:
+ g_value_set_boolean (value, gtk_menu_tracker_item_get_toggled (self));
+ break;
+ case PROP_ACCEL:
+ g_value_set_string (value, gtk_menu_tracker_item_get_accel (self));
+ break;
+ case PROP_SUBMENU_SHOWN:
+ g_value_set_boolean (value, gtk_menu_tracker_item_get_submenu_shown (self));
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gtk_menu_tracker_item_finalize (GObject *object)
+{
+ GtkMenuTrackerItem *self = GTK_MENU_TRACKER_ITEM (object);
+
+ g_free (self->action_namespace);
+
+ if (self->observable)
+ g_object_unref (self->observable);
+
+ g_object_unref (self->item);
+
+ G_OBJECT_CLASS (gtk_menu_tracker_item_parent_class)->finalize (object);
+}
+
+static void
+gtk_menu_tracker_item_init (GtkMenuTrackerItem * self)
+{
+}
+
+static void
+gtk_menu_tracker_item_class_init (GtkMenuTrackerItemClass *class)
+{
+ class->get_property = gtk_menu_tracker_item_get_property;
+ class->finalize = gtk_menu_tracker_item_finalize;
+
+ gtk_menu_tracker_item_pspecs[PROP_IS_SEPARATOR] =
+ g_param_spec_boolean ("is-separator", "", "", FALSE, G_PARAM_STATIC_STRINGS | G_PARAM_READABLE);
+ gtk_menu_tracker_item_pspecs[PROP_HAS_SUBMENU] =
+ g_param_spec_boolean ("has-submenu", "", "", FALSE, G_PARAM_STATIC_STRINGS | G_PARAM_READABLE);
+ gtk_menu_tracker_item_pspecs[PROP_LABEL] =
+ g_param_spec_string ("label", "", "", NULL, G_PARAM_STATIC_STRINGS | G_PARAM_READABLE);
+ gtk_menu_tracker_item_pspecs[PROP_ICON] =
+ g_param_spec_object ("icon", "", "", G_TYPE_ICON, G_PARAM_STATIC_STRINGS | G_PARAM_READABLE);
+ gtk_menu_tracker_item_pspecs[PROP_SENSITIVE] =
+ g_param_spec_boolean ("sensitive", "", "", FALSE, G_PARAM_STATIC_STRINGS | G_PARAM_READABLE);
+ gtk_menu_tracker_item_pspecs[PROP_VISIBLE] =
+ g_param_spec_boolean ("visible", "", "", FALSE, G_PARAM_STATIC_STRINGS | G_PARAM_READABLE);
+ gtk_menu_tracker_item_pspecs[PROP_ROLE] =
+ g_param_spec_enum ("role", "", "",
+ GTK_TYPE_MENU_TRACKER_ITEM_ROLE, GTK_MENU_TRACKER_ITEM_ROLE_NORMAL,
+ G_PARAM_STATIC_STRINGS | G_PARAM_READABLE);
+ gtk_menu_tracker_item_pspecs[PROP_TOGGLED] =
+ g_param_spec_boolean ("toggled", "", "", FALSE, G_PARAM_STATIC_STRINGS | G_PARAM_READABLE);
+ gtk_menu_tracker_item_pspecs[PROP_ACCEL] =
+ g_param_spec_string ("accel", "", "", NULL, G_PARAM_STATIC_STRINGS | G_PARAM_READABLE);
+ gtk_menu_tracker_item_pspecs[PROP_SUBMENU_SHOWN] =
+ g_param_spec_boolean ("submenu-shown", "", "", FALSE, G_PARAM_STATIC_STRINGS | G_PARAM_READABLE);
+
+ g_object_class_install_properties (class, N_PROPS, gtk_menu_tracker_item_pspecs);
+}
+
+static void
+gtk_menu_tracker_item_action_added (GtkActionObserver *observer,
+ GtkActionObservable *observable,
+ const gchar *action_name,
+ const GVariantType *parameter_type,
+ gboolean enabled,
+ GVariant *state)
+{
+ GtkMenuTrackerItem *self = GTK_MENU_TRACKER_ITEM (observer);
+ GVariant *action_target;
+
+ action_target = g_menu_item_get_attribute_value (self->item, G_MENU_ATTRIBUTE_TARGET, NULL);
+
+ self->can_activate = (action_target == NULL && parameter_type == NULL) ||
+ (action_target != NULL && parameter_type != NULL &&
+ g_variant_is_of_type (action_target, parameter_type));
+
+ if (!self->can_activate)
+ {
+ if (action_target)
+ g_variant_unref (action_target);
+ return;
+ }
+
+ self->sensitive = enabled;
+
+ if (action_target != NULL && state != NULL)
+ {
+ self->toggled = g_variant_equal (state, action_target);
+ self->role = GTK_MENU_TRACKER_ITEM_ROLE_RADIO;
+ }
+
+ else if (state != NULL && g_variant_is_of_type (state, G_VARIANT_TYPE_BOOLEAN))
+ {
+ self->toggled = g_variant_get_boolean (state);
+ self->role = GTK_MENU_TRACKER_ITEM_ROLE_CHECK;
+ }
+
+ g_object_freeze_notify (G_OBJECT (self));
+
+ if (self->sensitive)
+ g_object_notify_by_pspec (G_OBJECT (self), gtk_menu_tracker_item_pspecs[PROP_SENSITIVE]);
+
+ if (self->toggled)
+ g_object_notify_by_pspec (G_OBJECT (self), gtk_menu_tracker_item_pspecs[PROP_TOGGLED]);
+
+ if (self->role != GTK_MENU_TRACKER_ITEM_ROLE_NORMAL)
+ g_object_notify_by_pspec (G_OBJECT (self), gtk_menu_tracker_item_pspecs[PROP_ROLE]);
+
+ g_object_thaw_notify (G_OBJECT (self));
+
+ if (action_target)
+ g_variant_unref (action_target);
+}
+
+static void
+gtk_menu_tracker_item_action_enabled_changed (GtkActionObserver *observer,
+ GtkActionObservable *observable,
+ const gchar *action_name,
+ gboolean enabled)
+{
+ GtkMenuTrackerItem *self = GTK_MENU_TRACKER_ITEM (observer);
+
+ if (!self->can_activate)
+ return;
+
+ if (self->sensitive == enabled)
+ return;
+
+ self->sensitive = enabled;
+
+ g_object_notify_by_pspec (G_OBJECT (self), gtk_menu_tracker_item_pspecs[PROP_SENSITIVE]);
+}
+
+static void
+gtk_menu_tracker_item_action_state_changed (GtkActionObserver *observer,
+ GtkActionObservable *observable,
+ const gchar *action_name,
+ GVariant *state)
+{
+ GtkMenuTrackerItem *self = GTK_MENU_TRACKER_ITEM (observer);
+ GVariant *action_target;
+ gboolean was_toggled;
+
+ if (!self->can_activate)
+ return;
+
+ action_target = g_menu_item_get_attribute_value (self->item, G_MENU_ATTRIBUTE_TARGET, NULL);
+ was_toggled = self->toggled;
+
+ if (action_target)
+ {
+ self->toggled = g_variant_equal (state, action_target);
+ g_variant_unref (action_target);
+ }
+
+ else if (g_variant_is_of_type (state, G_VARIANT_TYPE_BOOLEAN))
+ self->toggled = g_variant_get_boolean (state);
+
+ else
+ self->toggled = FALSE;
+
+ if (self->toggled != was_toggled)
+ g_object_notify_by_pspec (G_OBJECT (self), gtk_menu_tracker_item_pspecs[PROP_TOGGLED]);
+}
+
+static void
+gtk_menu_tracker_item_action_removed (GtkActionObserver *observer,
+ GtkActionObservable *observable,
+ const gchar *action_name)
+{
+ GtkMenuTrackerItem *self = GTK_MENU_TRACKER_ITEM (observer);
+
+ if (!self->can_activate)
+ return;
+
+ g_object_freeze_notify (G_OBJECT (self));
+
+ if (self->sensitive)
+ {
+ self->sensitive = FALSE;
+ g_object_notify_by_pspec (G_OBJECT (self), gtk_menu_tracker_item_pspecs[PROP_SENSITIVE]);
+ }
+
+ if (self->toggled)
+ {
+ self->toggled = FALSE;
+ g_object_notify_by_pspec (G_OBJECT (self), gtk_menu_tracker_item_pspecs[PROP_TOGGLED]);
+ }
+
+ if (self->role != GTK_MENU_TRACKER_ITEM_ROLE_NORMAL)
+ {
+ self->role = GTK_MENU_TRACKER_ITEM_ROLE_NORMAL;
+ g_object_notify_by_pspec (G_OBJECT (self), gtk_menu_tracker_item_pspecs[PROP_ROLE]);
+ }
+
+ g_object_thaw_notify (G_OBJECT (self));
+}
+
+static void
+gtk_menu_tracker_item_init_observer_iface (GtkActionObserverInterface *iface)
+{
+ iface->action_added = gtk_menu_tracker_item_action_added;
+ iface->action_enabled_changed = gtk_menu_tracker_item_action_enabled_changed;
+ iface->action_state_changed = gtk_menu_tracker_item_action_state_changed;
+ iface->action_removed = gtk_menu_tracker_item_action_removed;
+}
+
+GtkMenuTrackerItem *
+_gtk_menu_tracker_item_new (GtkActionObservable *observable,
+ GMenuModel *model,
+ gint item_index,
+ const gchar *action_namespace,
+ gboolean is_separator)
+{
+ GtkMenuTrackerItem *self;
+ const gchar *action_name;
+
+ g_return_val_if_fail (GTK_IS_ACTION_OBSERVABLE (observable), NULL);
+ g_return_val_if_fail (G_IS_MENU_MODEL (model), NULL);
+
+ self = g_object_new (GTK_TYPE_MENU_TRACKER_ITEM, NULL);
+ self->item = g_menu_item_new_from_model (model, item_index);
+ self->action_namespace = g_strdup (action_namespace);
+ self->observable = g_object_ref (observable);
+ self->is_separator = is_separator;
+
+ if (!is_separator && g_menu_item_get_attribute (self->item, "action", "&s", &action_name))
+ {
+ GActionGroup *group = G_ACTION_GROUP (observable);
+ const GVariantType *parameter_type;
+ gboolean enabled;
+ GVariant *state;
+ gboolean found;
+
+ state = NULL;
+
+ if (action_namespace)
+ {
+ gchar *full_action;
+
+ full_action = g_strjoin (".", action_namespace, action_name, NULL);
+ gtk_action_observable_register_observer (self->observable, full_action, GTK_ACTION_OBSERVER (self));
+ found = g_action_group_query_action (group, full_action, &enabled, &parameter_type, NULL, NULL, &state);
+ g_free (full_action);
+ }
+ else
+ {
+ gtk_action_observable_register_observer (self->observable, action_name, GTK_ACTION_OBSERVER (self));
+ found = g_action_group_query_action (group, action_name, &enabled, &parameter_type, NULL, NULL, &state);
+ }
+
+ if (found)
+ gtk_menu_tracker_item_action_added (GTK_ACTION_OBSERVER (self), observable, NULL, parameter_type, enabled, state);
+ else
+ gtk_menu_tracker_item_action_removed (GTK_ACTION_OBSERVER (self), observable, NULL);
+
+ if (state)
+ g_variant_unref (state);
+ }
+ else
+ self->sensitive = TRUE;
+
+ return self;
+}
+
+GtkActionObservable *
+_gtk_menu_tracker_item_get_observable (GtkMenuTrackerItem *self)
+{
+ return self->observable;
+}
+
+/**
+ * gtk_menu_tracker_item_get_is_separator:
+ * @self: A #GtkMenuTrackerItem instance
+ *
+ * Returns whether the menu item is a separator. If so, only
+ * certain properties may need to be obeyed. See the documentation
+ * for #GtkMenuTrackerItem.
+ */
+gboolean
+gtk_menu_tracker_item_get_is_separator (GtkMenuTrackerItem *self)
+{
+ return self->is_separator;
+}
+
+/**
+ * gtk_menu_tracker_item_get_has_submenu:
+ * @self: A #GtkMenuTrackerItem instance
+ *
+ * Returns whether the menu item has a submenu. If so, only
+ * certain properties may need to be obeyed. See the documentation
+ * for #GtkMenuTrackerItem.
+ */
+gboolean
+gtk_menu_tracker_item_get_has_submenu (GtkMenuTrackerItem *self)
+{
+ GMenuModel *link;
+
+ link = g_menu_item_get_link (self->item, G_MENU_LINK_SUBMENU);
+
+ if (link)
+ {
+ g_object_unref (link);
+ return TRUE;
+ }
+ else
+ return FALSE;
+}
+
+const gchar *
+gtk_menu_tracker_item_get_label (GtkMenuTrackerItem *self)
+{
+ const gchar *label = NULL;
+
+ g_menu_item_get_attribute (self->item, G_MENU_ATTRIBUTE_LABEL, "&s", &label);
+
+ return label;
+}
+
+/**
+ * gtk_menu_tracker_item_get_icon:
+ *
+ * Returns: (transfer full):
+ */
+GIcon *
+gtk_menu_tracker_item_get_icon (GtkMenuTrackerItem *self)
+{
+ GVariant *icon_data;
+ GIcon *icon;
+
+ icon_data = g_menu_item_get_attribute_value (self->item, "icon", NULL);
+
+ if (icon_data == NULL)
+ return NULL;
+
+ icon = g_icon_deserialize (icon_data);
+ g_variant_unref (icon_data);
+
+ return icon;
+}
+
+gboolean
+gtk_menu_tracker_item_get_sensitive (GtkMenuTrackerItem *self)
+{
+ return self->sensitive;
+}
+
+gboolean
+gtk_menu_tracker_item_get_visible (GtkMenuTrackerItem *self)
+{
+ return TRUE;
+}
+
+GtkMenuTrackerItemRole
+gtk_menu_tracker_item_get_role (GtkMenuTrackerItem *self)
+{
+ return self->role;
+}
+
+gboolean
+gtk_menu_tracker_item_get_toggled (GtkMenuTrackerItem *self)
+{
+ return self->toggled;
+}
+
+const gchar *
+gtk_menu_tracker_item_get_accel (GtkMenuTrackerItem *self)
+{
+ const gchar *accel = NULL;
+
+ g_menu_item_get_attribute (self->item, "accel", "&s", &accel);
+
+ return accel;
+}
+
+GMenuModel *
+_gtk_menu_tracker_item_get_submenu (GtkMenuTrackerItem *self)
+{
+ return g_menu_item_get_link (self->item, "submenu");
+}
+
+gchar *
+_gtk_menu_tracker_item_get_submenu_namespace (GtkMenuTrackerItem *self)
+{
+ const gchar *namespace;
+
+ if (g_menu_item_get_attribute (self->item, "action-namespace", "&s", &namespace))
+ {
+ if (self->action_namespace)
+ return g_strjoin (".", self->action_namespace, namespace, NULL);
+ else
+ return g_strdup (namespace);
+ }
+ else
+ return g_strdup (self->action_namespace);
+}
+
+gboolean
+gtk_menu_tracker_item_get_should_request_show (GtkMenuTrackerItem *self)
+{
+ return g_menu_item_get_attribute (self->item, "submenu-action", "&s", NULL);
+}
+
+gboolean
+gtk_menu_tracker_item_get_submenu_shown (GtkMenuTrackerItem *self)
+{
+ return self->submenu_shown;
+}
+
+static void
+gtk_menu_tracker_item_set_submenu_shown (GtkMenuTrackerItem *self,
+ gboolean submenu_shown)
+{
+ if (submenu_shown == self->submenu_shown)
+ return;
+
+ self->submenu_shown = submenu_shown;
+ g_object_notify_by_pspec (G_OBJECT (self), gtk_menu_tracker_item_pspecs[PROP_SUBMENU_SHOWN]);
+}
+
+void
+gtk_menu_tracker_item_activated (GtkMenuTrackerItem *self)
+{
+ const gchar *action_name;
+ GVariant *action_target;
+
+ g_return_if_fail (GTK_IS_MENU_TRACKER_ITEM (self));
+
+ if (!self->can_activate)
+ return;
+
+ g_menu_item_get_attribute (self->item, G_MENU_ATTRIBUTE_ACTION, "&s", &action_name);
+ action_target = g_menu_item_get_attribute_value (self->item, G_MENU_ATTRIBUTE_TARGET, NULL);
+
+ if (self->action_namespace)
+ {
+ gchar *full_action;
+
+ full_action = g_strjoin (".", self->action_namespace, action_name, NULL);
+ g_action_group_activate_action (G_ACTION_GROUP (self->observable), full_action, action_target);
+ g_free (full_action);
+ }
+ else
+ g_action_group_activate_action (G_ACTION_GROUP (self->observable), action_name, action_target);
+
+ if (action_target)
+ g_variant_unref (action_target);
+}
+
+typedef struct
+{
+ GtkMenuTrackerItem *item;
+ gchar *submenu_action;
+ gboolean first_time;
+} GtkMenuTrackerOpener;
+
+static void
+gtk_menu_tracker_opener_update (GtkMenuTrackerOpener *opener)
+{
+ GActionGroup *group = G_ACTION_GROUP (opener->item->observable);
+ gboolean is_open = TRUE;
+
+ /* We consider the menu as being "open" if the action does not exist
+ * or if there is another problem (no state, wrong state type, etc.).
+ * If the action exists, with the correct state then we consider it
+ * open if we have ever seen this state equal to TRUE.
+ *
+ * In the event that we see the state equal to FALSE, we force it back
+ * to TRUE. We do not signal that the menu was closed because this is
+ * likely to create UI thrashing.
+ *
+ * The only way the menu can have a true-to-false submenu-shown
+ * transition is if the user calls _request_submenu_shown (FALSE).
+ * That is handled in _free() below.
+ */
+
+ if (g_action_group_has_action (group, opener->submenu_action))
+ {
+ GVariant *state = g_action_group_get_action_state (group, opener->submenu_action);
+
+ if (state)
+ {
+ if (g_variant_is_of_type (state, G_VARIANT_TYPE_BOOLEAN))
+ is_open = g_variant_get_boolean (state);
+ g_variant_unref (state);
+ }
+ }
+
+ /* If it is already open, signal that.
+ *
+ * If it is not open, ask it to open.
+ */
+ if (is_open)
+ gtk_menu_tracker_item_set_submenu_shown (opener->item, TRUE);
+
+ if (!is_open || opener->first_time)
+ {
+ g_action_group_change_action_state (group, opener->submenu_action, g_variant_new_boolean (TRUE));
+ opener->first_time = FALSE;
+ }
+}
+
+static void
+gtk_menu_tracker_opener_added (GActionGroup *group,
+ const gchar *action_name,
+ gpointer user_data)
+{
+ GtkMenuTrackerOpener *opener = user_data;
+
+ if (g_str_equal (action_name, opener->submenu_action))
+ gtk_menu_tracker_opener_update (opener);
+}
+
+static void
+gtk_menu_tracker_opener_removed (GActionGroup *action_group,
+ const gchar *action_name,
+ gpointer user_data)
+{
+ GtkMenuTrackerOpener *opener = user_data;
+
+ if (g_str_equal (action_name, opener->submenu_action))
+ gtk_menu_tracker_opener_update (opener);
+}
+
+static void
+gtk_menu_tracker_opener_changed (GActionGroup *action_group,
+ const gchar *action_name,
+ GVariant *new_state,
+ gpointer user_data)
+{
+ GtkMenuTrackerOpener *opener = user_data;
+
+ if (g_str_equal (action_name, opener->submenu_action))
+ gtk_menu_tracker_opener_update (opener);
+}
+
+static void
+gtk_menu_tracker_opener_free (gpointer data)
+{
+ GtkMenuTrackerOpener *opener = data;
+
+ g_signal_handlers_disconnect_by_func (opener->item->observable, gtk_menu_tracker_opener_added, opener);
+ g_signal_handlers_disconnect_by_func (opener->item->observable, gtk_menu_tracker_opener_removed, opener);
+ g_signal_handlers_disconnect_by_func (opener->item->observable, gtk_menu_tracker_opener_changed, opener);
+
+ g_action_group_change_action_state (G_ACTION_GROUP (opener->item->observable),
+ opener->submenu_action,
+ g_variant_new_boolean (FALSE));
+
+ gtk_menu_tracker_item_set_submenu_shown (opener->item, FALSE);
+
+ g_free (opener->submenu_action);
+
+ g_slice_free (GtkMenuTrackerOpener, opener);
+}
+
+static GtkMenuTrackerOpener *
+gtk_menu_tracker_opener_new (GtkMenuTrackerItem *item,
+ const gchar *submenu_action)
+{
+ GtkMenuTrackerOpener *opener;
+
+ opener = g_slice_new (GtkMenuTrackerOpener);
+ opener->first_time = TRUE;
+ opener->item = item;
+
+ if (item->action_namespace)
+ opener->submenu_action = g_strjoin (".", item->action_namespace, submenu_action, NULL);
+ else
+ opener->submenu_action = g_strdup (submenu_action);
+
+ g_signal_connect (item->observable, "action-added", G_CALLBACK (gtk_menu_tracker_opener_added), opener);
+ g_signal_connect (item->observable, "action-removed", G_CALLBACK (gtk_menu_tracker_opener_removed), opener);
+ g_signal_connect (item->observable, "action-state-changed", G_CALLBACK (gtk_menu_tracker_opener_changed), opener);
+
+ gtk_menu_tracker_opener_update (opener);
+
+ return opener;
+}
+
+void
+gtk_menu_tracker_item_request_submenu_shown (GtkMenuTrackerItem *self,
+ gboolean shown)
+{
+ const gchar *submenu_action;
+ gboolean has_submenu_action;
+
+ if (shown == self->submenu_requested)
+ return;
+
+ has_submenu_action = g_menu_item_get_attribute (self->item, "submenu-action", "&s", &submenu_action);
+
+ self->submenu_requested = shown;
+
+ /* If we have a submenu action, start a submenu opener and wait
+ * for the reply from the client. Otherwise, simply open the
+ * submenu immediately.
+ */
+ if (has_submenu_action)
+ {
+ if (shown)
+ g_object_set_data_full (G_OBJECT (self), "submenu-opener",
+ gtk_menu_tracker_opener_new (self, submenu_action),
+ gtk_menu_tracker_opener_free);
+ else
+ g_object_set_data (G_OBJECT (self), "submenu-opener", NULL);
+ }
+ else
+ gtk_menu_tracker_item_set_submenu_shown (self, shown);
+}
diff --git a/libqmenumodel/src/gtk/gtkmenutrackeritem.h b/libqmenumodel/src/gtk/gtkmenutrackeritem.h
new file mode 100644
index 0000000..9db30eb
--- /dev/null
+++ b/libqmenumodel/src/gtk/gtkmenutrackeritem.h
@@ -0,0 +1,84 @@
+/*
+ * Copyright © 2011, 2013 Canonical Limited
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the licence, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Author: Ryan Lortie <desrt@desrt.ca>
+ */
+
+#ifndef __GTK_MENU_TRACKER_ITEM_H__
+#define __GTK_MENU_TRACKER_ITEM_H__
+
+#include "gtkactionobservable.h"
+
+#define GTK_TYPE_MENU_TRACKER_ITEM (gtk_menu_tracker_item_get_type ())
+#define GTK_MENU_TRACKER_ITEM(inst) (G_TYPE_CHECK_INSTANCE_CAST ((inst), \
+ GTK_TYPE_MENU_TRACKER_ITEM, GtkMenuTrackerItem))
+#define GTK_IS_MENU_TRACKER_ITEM(inst) (G_TYPE_CHECK_INSTANCE_TYPE ((inst), \
+ GTK_TYPE_MENU_TRACKER_ITEM))
+
+typedef struct _GtkMenuTrackerItem GtkMenuTrackerItem;
+
+#define GTK_TYPE_MENU_TRACKER_ITEM_ROLE (gtk_menu_tracker_item_role_get_type ())
+
+typedef enum {
+ GTK_MENU_TRACKER_ITEM_ROLE_NORMAL,
+ GTK_MENU_TRACKER_ITEM_ROLE_CHECK,
+ GTK_MENU_TRACKER_ITEM_ROLE_RADIO,
+} GtkMenuTrackerItemRole;
+
+GType gtk_menu_tracker_item_get_type (void) G_GNUC_CONST;
+
+GType gtk_menu_tracker_item_role_get_type (void) G_GNUC_CONST;
+
+GtkMenuTrackerItem * _gtk_menu_tracker_item_new (GtkActionObservable *observable,
+ GMenuModel *model,
+ gint item_index,
+ const gchar *action_namespace,
+ gboolean is_separator);
+
+GtkActionObservable * _gtk_menu_tracker_item_get_observable (GtkMenuTrackerItem *self);
+
+gboolean gtk_menu_tracker_item_get_is_separator (GtkMenuTrackerItem *self);
+
+gboolean gtk_menu_tracker_item_get_has_submenu (GtkMenuTrackerItem *self);
+
+const gchar * gtk_menu_tracker_item_get_label (GtkMenuTrackerItem *self);
+
+GIcon * gtk_menu_tracker_item_get_icon (GtkMenuTrackerItem *self);
+
+gboolean gtk_menu_tracker_item_get_sensitive (GtkMenuTrackerItem *self);
+
+gboolean gtk_menu_tracker_item_get_visible (GtkMenuTrackerItem *self);
+
+GtkMenuTrackerItemRole gtk_menu_tracker_item_get_role (GtkMenuTrackerItem *self);
+
+gboolean gtk_menu_tracker_item_get_toggled (GtkMenuTrackerItem *self);
+
+const gchar * gtk_menu_tracker_item_get_accel (GtkMenuTrackerItem *self);
+
+GMenuModel * _gtk_menu_tracker_item_get_submenu (GtkMenuTrackerItem *self);
+
+gchar * _gtk_menu_tracker_item_get_submenu_namespace (GtkMenuTrackerItem *self);
+
+gboolean gtk_menu_tracker_item_get_should_request_show (GtkMenuTrackerItem *self);
+
+void gtk_menu_tracker_item_activated (GtkMenuTrackerItem *self);
+
+void gtk_menu_tracker_item_request_submenu_shown (GtkMenuTrackerItem *self,
+ gboolean shown);
+
+gboolean gtk_menu_tracker_item_get_submenu_shown (GtkMenuTrackerItem *self);
+
+#endif
diff --git a/libqmenumodel/src/unitymenumodel.cpp b/libqmenumodel/src/unitymenumodel.cpp
new file mode 100644
index 0000000..25df10b
--- /dev/null
+++ b/libqmenumodel/src/unitymenumodel.cpp
@@ -0,0 +1,227 @@
+/*
+ * Copyright 2013 Canonical Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; version 3.
+ *
+ * This program 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Authors: Lars Uebernickel <lars.uebernickel@canonical.com>
+ */
+
+#include "unitymenumodel.h"
+
+extern "C" {
+ #include "gtk/gtkactionmuxer.h"
+ #include "gtk/gtkmenutracker.h"
+}
+
+G_DEFINE_QUARK (UNITY_MENU_MODEL, unity_menu_model)
+
+class UnityMenuModelPrivate
+{
+public:
+ UnityMenuModelPrivate(UnityMenuModel *model,
+ const QByteArray &busName,
+ const QByteArray &actionGroupObjectPath,
+ const QByteArray &menuObjectPath);
+
+ ~UnityMenuModelPrivate();
+
+ int nrItems();
+ QVariant data(int position, int role);
+
+private:
+ UnityMenuModel *model;
+ GtkActionMuxer *muxer;
+ GtkMenuTracker *menutracker;
+ GSequence *items;
+
+ static void menuItemInserted(GtkMenuTrackerItem *item, gint position, gpointer user_data);
+ static void menuItemRemoved(gint position, gpointer user_data);
+ static void menuItemChanged(GObject *object, GParamSpec *pspec, gpointer user_data);
+};
+
+UnityMenuModelPrivate::UnityMenuModelPrivate(UnityMenuModel *model,
+ const QByteArray &busName,
+ const QByteArray &actionGroupObjectPath,
+ const QByteArray &menuObjectPath)
+{
+ GDBusConnection *connection;
+ GDBusActionGroup *actions;
+ GDBusMenuModel *menu;
+
+ this->model = model;
+
+ connection = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, NULL);
+ actions = g_dbus_action_group_get (connection, busName.constData(), actionGroupObjectPath.constData());
+ menu = g_dbus_menu_model_get (connection, busName.constData(), menuObjectPath.constData());
+
+ this->muxer = gtk_action_muxer_new ();
+ g_object_set_qdata (G_OBJECT (this->muxer), unity_menu_model_quark (), model);
+ gtk_action_muxer_insert (this->muxer, "indicator", G_ACTION_GROUP (actions));
+
+ this->menutracker = gtk_menu_tracker_new (GTK_ACTION_OBSERVABLE (this->muxer),
+ G_MENU_MODEL (menu), TRUE, "indicator",
+ menuItemInserted, menuItemRemoved, this);
+
+ this->items = g_sequence_new (NULL);
+
+ g_object_unref (menu);
+ g_object_unref (actions);
+ g_object_unref (connection);
+}
+
+UnityMenuModelPrivate::~UnityMenuModelPrivate()
+{
+ GSequenceIter *it;
+
+ it = g_sequence_get_begin_iter (this->items);
+ while (!g_sequence_iter_is_end (it)) {
+ GtkMenuTrackerItem *item = (GtkMenuTrackerItem *) g_sequence_get (it);
+ g_signal_handlers_disconnect_by_func (item, (gpointer) menuItemChanged, it);
+ g_object_unref (item);
+ it = g_sequence_iter_next (it);
+ }
+ g_sequence_free (this->items);
+
+ g_object_unref (this->muxer);
+ gtk_menu_tracker_free (this->menutracker);
+}
+
+int UnityMenuModelPrivate::nrItems()
+{
+ return g_sequence_get_length (this->items);
+}
+
+QVariant UnityMenuModelPrivate::data(int position, int role)
+{
+ GtkMenuTrackerItem *item;
+
+ item = (GtkMenuTrackerItem *) g_sequence_get (g_sequence_get_iter_at_pos (this->items, position));
+
+ switch (role) {
+ case UnityMenuModel::LabelRole:
+ return gtk_menu_tracker_item_get_label (item);
+
+ case UnityMenuModel::SensitiveRole:
+ return gtk_menu_tracker_item_get_sensitive (item);
+
+ default:
+ return QVariant();
+ }
+}
+
+void UnityMenuModelPrivate::menuItemInserted(GtkMenuTrackerItem *item, gint position, gpointer user_data)
+{
+ UnityMenuModelPrivate *priv = (UnityMenuModelPrivate *)user_data;
+ GSequenceIter *it;
+
+ priv->model->beginInsertRows(QModelIndex(), position, position);
+
+ it = g_sequence_get_iter_at_pos (priv->items, position);
+ g_signal_connect (item, "notify", G_CALLBACK (menuItemChanged), it);
+ g_sequence_insert_before (it, g_object_ref (item));
+
+ priv->model->endInsertRows();
+}
+
+void UnityMenuModelPrivate::menuItemRemoved(gint position, gpointer user_data)
+{
+ UnityMenuModelPrivate *priv = (UnityMenuModelPrivate *)user_data;
+ GSequenceIter *it;
+ GtkMenuTrackerItem *item;
+
+ priv->model->beginRemoveRows(QModelIndex(), position, position);
+
+ it = g_sequence_get_iter_at_pos (priv->items, position);
+ item = (GtkMenuTrackerItem *) g_sequence_get (it);
+ g_signal_handlers_disconnect_by_func (item, (gpointer) menuItemChanged, it);
+ g_object_unref (item);
+ g_sequence_remove (it);
+
+ priv->model->endRemoveRows();
+}
+
+void UnityMenuModelPrivate::menuItemChanged(GObject *object, GParamSpec *pspec, gpointer user_data)
+{
+ GSequenceIter *it = (GSequenceIter *) user_data;
+ GtkMenuTrackerItem *item;
+ GtkActionObservable *muxer;
+ UnityMenuModel *model;
+ gint position;
+
+ item = (GtkMenuTrackerItem *) g_sequence_get (it);
+ muxer = _gtk_menu_tracker_item_get_observable (item);
+ model = (UnityMenuModel *) g_object_get_qdata (G_OBJECT (muxer), unity_menu_model_quark ());
+ position = g_sequence_iter_get_position (it);
+
+ Q_EMIT model->dataChanged(model->index(position, 0), model->index(position, 0));
+}
+
+UnityMenuModel::UnityMenuModel(QObject *parent):
+ QAbstractListModel(parent)
+{
+}
+
+UnityMenuModel::UnityMenuModel(const QByteArray &busName,
+ const QByteArray &actionGroupObjectPath,
+ const QByteArray &menuObjectPath,
+ QObject *parent):
+ QAbstractListModel(parent),
+ priv(NULL)
+{
+}
+
+void UnityMenuModel::init(const QByteArray &busName, const QByteArray &actionGroupObjectPath, const QByteArray &menuObjectPath)
+{
+ priv = new UnityMenuModelPrivate (this, busName, actionGroupObjectPath, menuObjectPath);
+}
+
+UnityMenuModel::~UnityMenuModel()
+{
+ delete priv;
+}
+
+int UnityMenuModel::rowCount(const QModelIndex &parent) const
+{
+ return priv && !parent.isValid() ? priv->nrItems() : 0;
+}
+
+int UnityMenuModel::columnCount(const QModelIndex &parent) const
+{
+ return 1;
+}
+
+QVariant UnityMenuModel::data(const QModelIndex &index, int role) const
+{
+ return priv ? priv->data(index.row(), role) : QVariant();
+}
+
+QModelIndex UnityMenuModel::index(int row, int column, const QModelIndex &parent) const
+{
+ return createIndex(row, column);
+}
+
+QModelIndex UnityMenuModel::parent(const QModelIndex &index) const
+{
+ return QModelIndex();
+}
+
+QHash<int, QByteArray> UnityMenuModel::roleNames() const
+{
+ QHash<int, QByteArray> names;
+
+ names[LabelRole] = "label";
+ names[ActionRole] = "action";
+ names[SensitiveRole] = "sensitive";
+
+ return names;
+}
diff --git a/libqmenumodel/src/unitymenumodel.h b/libqmenumodel/src/unitymenumodel.h
new file mode 100644
index 0000000..12a5891
--- /dev/null
+++ b/libqmenumodel/src/unitymenumodel.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright 2013 Canonical Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; version 3.
+ *
+ * This program 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Authors: Lars Uebernickel <lars.uebernickel@canonical.com>
+ */
+
+#ifndef UNITYMENUMODEL_H
+#define UNITYMENUMODEL_H
+
+#include <QAbstractListModel>
+
+class UnityMenuModel: public QAbstractListModel
+{
+ Q_OBJECT
+
+public:
+ enum MenuRoles {
+ ActionRole = Qt::DisplayRole + 1,
+ LabelRole,
+ SensitiveRole
+ };
+
+public:
+ UnityMenuModel(const QByteArray &busName, const QByteArray &actionGroupObjectPath,
+ const QByteArray &menuObjectPath, QObject *parent = NULL);
+ virtual ~UnityMenuModel();
+
+ int rowCount(const QModelIndex &parent = QModelIndex()) const;
+ int columnCount(const QModelIndex &parent = QModelIndex()) const;
+ QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
+ QModelIndex index(int row, int column = 0, const QModelIndex &parent = QModelIndex()) const;
+ QModelIndex parent(const QModelIndex &index) const;
+ QHash<int, QByteArray> roleNames() const;
+
+protected:
+ UnityMenuModel(QObject *parent = NULL);
+ void init(const QByteArray &busName, const QByteArray &actionGroupObjectPath, const QByteArray &menuObjectPath);
+
+private:
+ class UnityMenuModelPrivate *priv;
+ friend class UnityMenuModelPrivate;
+};
+
+#endif
diff --git a/libqmenumodel/src/unityqmlmenumodel.cpp b/libqmenumodel/src/unityqmlmenumodel.cpp
new file mode 100644
index 0000000..775d974
--- /dev/null
+++ b/libqmenumodel/src/unityqmlmenumodel.cpp
@@ -0,0 +1,102 @@
+/*
+ * Copyright 2013 Canonical Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; version 3.
+ *
+ * This program 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Authors: Lars Uebernickel <lars.uebernickel@canonical.com>
+ */
+
+#include "unityqmlmenumodel.h"
+
+struct UnityQmlMenuModelPrivate
+{
+ QByteArray busName;
+ QByteArray actionObjectPath;
+ QByteArray menuObjectPath;
+};
+
+UnityQmlMenuModel::UnityQmlMenuModel(QObject *parent):
+ UnityMenuModel(parent)
+{
+ priv = new UnityQmlMenuModelPrivate;
+}
+
+UnityQmlMenuModel::~UnityQmlMenuModel()
+{
+ delete priv;
+}
+
+void UnityQmlMenuModel::classBegin()
+{
+}
+
+void UnityQmlMenuModel::componentComplete()
+{
+ if (priv->busName.isEmpty())
+ qWarning("UnityQmlMenuModel: property 'busName' must be set");
+ else if (priv->actionObjectPath.isEmpty())
+ qWarning("UnityQmlMenuModel: property 'actionObjectPath' must be set");
+ else if (priv->menuObjectPath.isEmpty())
+ qWarning("UnityQmlMenuModel: property 'menuObjectPath' must be set");
+ else
+ UnityQmlMenuModel::init(priv->busName, priv->actionObjectPath, priv->menuObjectPath);
+}
+
+QByteArray UnityQmlMenuModel::busName() const
+{
+ return priv->busName;
+}
+
+void UnityQmlMenuModel::setBusName(const QByteArray &name)
+{
+ if (!priv->busName.isEmpty()) {
+ qWarning("UnityQmlMenuModel: cannot change bus name after creation");
+ return;
+ }
+
+ priv->busName = name;
+ Q_EMIT busNameChanged(name);
+}
+
+QByteArray UnityQmlMenuModel::actionObjectPath() const
+{
+ return priv->actionObjectPath;
+}
+
+void UnityQmlMenuModel::setActionObjectPath(const QByteArray &path)
+{
+ if (!priv->actionObjectPath.isEmpty()) {
+ qWarning("UnityQmlMenuModel: cannot change object paths after creation");
+ return;
+ }
+
+ priv->actionObjectPath = path;
+ Q_EMIT actionObjectPathChanged(path);
+}
+
+QByteArray UnityQmlMenuModel::menuObjectPath() const
+{
+ return priv->menuObjectPath;
+}
+
+void UnityQmlMenuModel::setMenuObjectPath(const QByteArray &path)
+{
+ if (!priv->menuObjectPath.isEmpty()) {
+ qWarning("UnityQmlMenuModel: cannot change object paths after creation");
+ return;
+ }
+
+ priv->menuObjectPath = path;
+ Q_EMIT menuObjectPathChanged(path);
+}
+
diff --git a/libqmenumodel/src/unityqmlmenumodel.h b/libqmenumodel/src/unityqmlmenumodel.h
new file mode 100644
index 0000000..a375e8e
--- /dev/null
+++ b/libqmenumodel/src/unityqmlmenumodel.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright 2013 Canonical Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; version 3.
+ *
+ * This program 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Authors: Lars Uebernickel <lars.uebernickel@canonical.com>
+ */
+
+#ifndef UNITYQMLENUMODEL_H
+#define UNITYQMLENUMODEL_H
+
+#include "unitymenumodel.h"
+
+#include <QQmlParserStatus>
+
+class UnityQmlMenuModel: public UnityMenuModel, public QQmlParserStatus
+{
+ Q_OBJECT
+ Q_INTERFACES(QQmlParserStatus)
+ Q_PROPERTY(QByteArray busName READ busName WRITE setBusName NOTIFY busNameChanged)
+ Q_PROPERTY(QByteArray actionObjectPath READ actionObjectPath WRITE setActionObjectPath NOTIFY actionObjectPathChanged)
+ Q_PROPERTY(QByteArray menuObjectPath READ menuObjectPath WRITE setMenuObjectPath NOTIFY menuObjectPathChanged)
+
+public:
+ UnityQmlMenuModel(QObject *parent = NULL);
+ ~UnityQmlMenuModel();
+
+ void classBegin();
+ void componentComplete();
+
+ QByteArray busName() const;
+ void setBusName(const QByteArray &name);
+
+ QByteArray actionObjectPath() const;
+ void setActionObjectPath(const QByteArray &path);
+
+ QByteArray menuObjectPath() const;
+ void setMenuObjectPath(const QByteArray &path);
+
+Q_SIGNALS:
+ void busNameChanged(const QByteArray &name);
+ void actionObjectPathChanged(const QByteArray &path);
+ void menuObjectPathChanged(const QByteArray &path);
+
+private:
+ struct UnityQmlMenuModelPrivate *priv;
+};
+
+#endif
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