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unity8/plugins/Unity/Indicators/qml/CachedUnityMenuModel.qml
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1/*
2 * Copyright 2013 Canonical Ltd.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU Lesser General Public License as published by
6 * the Free Software Foundation; version 3.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU Lesser General Public License for more details.
12 *
13 * You should have received a copy of the GNU Lesser General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
15 *
16 * Authors:
17 * Nick Dedekind <nick.dedekind@canonical.com>
18 */
20import QtQuick 2.0
21import QMenuModel 0.1 as QMenuModel
22import Unity.Indicators 0.1 as Indicators
24// Make sure we don't duplicate models.
25Item {
26 id: cachedModel
27 property string busName: ""
28 property string actionsObjectPath: ""
29 property string menuObjectPath: ""
31 readonly property bool ready: busName!=="" && actionsObjectPath!=="" && menuObjectPath!==""
33 property QtObject model: {
34 if (!ready) {
35 return null;
36 }
38 var component = Indicators.UnityMenuModelCache.model(menuObjectPath);
39 if (!component) {
40 component = modelComponent.createObject(cachedModel);
41 return component;
42 }
43 return component;
44 }
46 Component.onCompleted: Indicators.UnityMenuModelCache.ref()
47 Component.onDestruction: {
48 model = null;
49 Indicators.UnityMenuModelCache.deref();
50 }
52 Component {
53 id: modelComponent
55 QMenuModel.UnityMenuModel {
56 id: unityModel
57 busName: cachedModel.busName
58 actions: { "indicator": cachedModel.actionsObjectPath }
59 menuObjectPath: cachedModel.menuObjectPath
61 Component.onCompleted: {
62 Indicators.UnityMenuModelCache.registerModel(cachedModel.menuObjectPath, unityModel);
63 }
64 }
65 }