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/*
* 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;
}
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