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unity8/plugins/Unity/Launcher/launchermodel.cpp
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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 * Michael Zanetti <michael.zanetti@canonical.com>
18 */
20#include "launchermodel.h"
21#include "launcheritem.h"
22#include "backend/launcherbackend.h"
24LauncherModel::LauncherModel(QObject *parent):
25 LauncherModelInterface(parent),
26 m_backend(new LauncherBackend(true, this))
28 connect(m_backend, SIGNAL(countChanged(QString,int)), SLOT(countChanged(QString,int)));
29 connect(m_backend, SIGNAL(progressChanged(QString,int)), SLOT(progressChanged(QString,int)));
31 Q_FOREACH (const QString &entry, m_backend->storedApplications()) {
32 LauncherItem *item = new LauncherItem(entry,
33 m_backend->desktopFile(entry),
34 m_backend->displayName(entry),
35 m_backend->icon(entry),
36 this);
37 if (m_backend->isPinned(entry)) {
38 item->setPinned(true);
39 } else {
40 item->setRecent(true);
41 }
42 m_list.append(item);
43 }
46LauncherModel::~LauncherModel()
48 while (!m_list.empty()) {
49 m_list.takeFirst()->deleteLater();
50 }
53int LauncherModel::rowCount(const QModelIndex &parent) const
55 Q_UNUSED(parent)
56 return m_list.count();
59QVariant LauncherModel::data(const QModelIndex &index, int role) const
61 LauncherItem *item = m_list.at(index.row());
62 switch(role) {
63 case RoleAppId:
64 return item->desktopFile();
65 case RoleDesktopFile:
66 return item->desktopFile();
67 case RoleName:
68 return item->name();
69 case RoleIcon:
70 return item->icon();
71 case RolePinned:
72 return item->pinned();
73 case RoleCount:
74 return item->count();
75 case RoleProgress:
76 return item->progress();
77 case RoleFocused:
78 return item->focused();
79 }
81 return QVariant();
84unity::shell::launcher::LauncherItemInterface *LauncherModel::get(int index) const
86 if (index < 0 || index >= m_list.count()) {
87 return 0;
88 }
89 return m_list.at(index);
92void LauncherModel::move(int oldIndex, int newIndex)
94 // Make sure its not moved outside the lists
95 if (newIndex < 0) {
96 newIndex = 0;
97 }
98 if (newIndex >= m_list.count()) {
99 newIndex = m_list.count()-1;
100 }
102 // Nothing to do?
103 if (oldIndex == newIndex) {
104 return;
105 }
107 // QList's and QAbstractItemModel's move implementation differ when moving an item up the list :/
108 // While QList needs the index in the resulting list, beginMoveRows expects it to be in the current list
109 // adjust the model's index by +1 in case we're moving upwards
110 int newModelIndex = newIndex > oldIndex ? newIndex+1 : newIndex;
112 beginMoveRows(QModelIndex(), oldIndex, oldIndex, QModelIndex(), newModelIndex);
113 m_list.move(oldIndex, newIndex);
114 endMoveRows();
116 storeAppList();
118 pin(m_list.at(newIndex)->appId());
121void LauncherModel::pin(const QString &appId, int index)
123 int currentIndex = findApplication(appId);
125 if (currentIndex >= 0) {
126 if (index == -1 || index == currentIndex) {
127 m_list.at(currentIndex)->setPinned(true);
128 m_backend->setPinned(appId, true);
129 QModelIndex modelIndex = this->index(currentIndex);
130 Q_EMIT dataChanged(modelIndex, modelIndex);
131 } else {
132 move(currentIndex, index);
133 }
134 } else {
135 if (index == -1) {
136 index = m_list.count();
137 }
138 beginInsertRows(QModelIndex(), index, index);
139 LauncherItem *item = new LauncherItem(appId,
140 m_backend->desktopFile(appId),
141 m_backend->displayName(appId),
142 m_backend->icon(appId));
143 item->setPinned(true);
144 m_backend->setPinned(appId, true);
145 m_list.insert(index, item);
146 endInsertRows();
147 }
150void LauncherModel::requestRemove(const QString &appId)
152 int index = findApplication(appId);
153 if (index < 0) {
154 return;
155 }
157 beginRemoveRows(QModelIndex(), index, index);
158 m_list.takeAt(index)->deleteLater();
159 endRemoveRows();
161 storeAppList();
164void LauncherModel::quickListActionInvoked(const QString &appId, int actionIndex)
166 int index = findApplication(appId);
167 if (index < 0) {
168 return;
169 }
171 LauncherItem *item = m_list.at(index);
172 QuickListModel *model = qobject_cast<QuickListModel*>(item->quickList());
173 if (model) {
174 QString actionId = model->get(actionIndex).actionId();
176 // Check if this is one of the launcher actions we handle ourselves
177 if (actionId == "pin_item") {
178 if (item->pinned()) {
179 requestRemove(appId);
180 } else {
181 pin(appId);
182 }
184 // Nope, we don't know this action, let the backend forward it to the application
185 } else {
186 m_backend->triggerQuickListAction(appId, actionId);
187 }
188 }
191void LauncherModel::setUser(const QString &username)
193 m_backend->setUser(username);
196void LauncherModel::applicationFocused(const QString &appId)
198 // Unfocus all apps
199 for(int i = 0; i < m_list.count(); ++i) {
200 LauncherItem *item = m_list.at(i);
201 if (item->focused()) {
202 item->setFocused(false);
203 Q_EMIT dataChanged(this->index(i), this->index(i), QVector<int>() << RoleFocused);
204 }
205 }
207 if (appId.isEmpty()) {
208 return;
209 }
211 // FIXME: drop this once we get real appIds from the AppManager
212 QString helper = appId.split('/').last();
213 if (helper.endsWith(".desktop")) {
214 helper.chop(8);
215 }
217 int index = findApplication(helper);
218 if (index >= 0) {
219 m_list.at(index)->setFocused(true);
220 Q_EMIT dataChanged(this->index(index), this->index(index), QVector<int>() << RoleFocused);
221 } else {
222 // Add app to recent apps
223 QString desktopFile = m_backend->desktopFile(helper);
224 QString appName = m_backend->displayName(helper);
225 QString icon = m_backend->icon(helper);
227 LauncherItem *item = new LauncherItem(helper, desktopFile, appName, icon);
228 item->setRecent(true);
229 item->setFocused(true);
230 beginInsertRows(QModelIndex(), m_list.count(), m_list.count());
231 m_list.append(item);
232 endInsertRows();
234 // Clean up old recent apps
235 QList<int> recentAppIndices;
236 for (int i = 0; i < m_list.count(); ++i) {
237 if (m_list.at(i)->recent()) {
238 recentAppIndices << i;
239 }
240 }
241 int run = 0;
242 while (recentAppIndices.count() > 5) {
243 beginRemoveRows(QModelIndex(), recentAppIndices.first() - run, recentAppIndices.first() - run);
244 m_list.takeAt(recentAppIndices.first() - run)->deleteLater();
245 endRemoveRows();
246 recentAppIndices.takeFirst();
247 ++run;
248 }
249 storeAppList();
250 }
253void LauncherModel::storeAppList()
255 QStringList appIds;
256 Q_FOREACH(LauncherItem *item, m_list) {
257 if (item->pinned() || item->recent()) {
258 appIds << item->appId();
259 }
260 }
261 m_backend->setStoredApplications(appIds);
264int LauncherModel::findApplication(const QString &appId)
266 for (int i = 0; i < m_list.count(); ++i) {
267 LauncherItem *item = m_list.at(i);
268 if (item->appId() == appId) {
269 return i;
270 }
271 }
272 return -1;
275void LauncherModel::progressChanged(const QString &appId, int progress)
277 int idx = findApplication(appId);
278 if (idx >= 0) {
279 LauncherItem *item = m_list.at(idx);
280 item->setProgress(progress);
281 Q_EMIT dataChanged(index(idx), index(idx), QVector<int>() << RoleProgress);
282 }
286void LauncherModel::countChanged(const QString &appId, int count)
288 int idx = findApplication(appId);
289 if (idx >= 0) {
290 LauncherItem *item = m_list.at(idx);
291 item->setCount(count);
292 Q_EMIT dataChanged(index(idx), index(idx), QVector<int>() << RoleCount);
293 }