plugins/Unity/Launcher/launchermodel.cpp · unity8

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unity8/plugins/Unity/Launcher/launchermodel.cpp

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1/*

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 "gsettings.h"

23#include "desktopfilehandler.h"

24#include "dbusinterface.h"

26#include <unity/shell/application/ApplicationInfoInterface.h>

28#include <QDesktopServices>

29#include <QDebug>

31using namespace unity::shell::application;

33LauncherModel::LauncherModel(QObject *parent):

34 LauncherModelInterface(parent),

35 m_settings(new GSettings(this)),

36 m_dbusIface(new DBusInterface(this)),

37 m_appManager(0)

38{

39 connect(m_dbusIface, &DBusInterface::countChanged, this, &LauncherModel::countChanged);

40 connect(m_dbusIface, &DBusInterface::countVisibleChanged, this, &LauncherModel::countVisibleChanged);

41 connect(m_dbusIface, &DBusInterface::refreshCalled, this, &LauncherModel::refresh);

43 connect(m_settings, &GSettings::changed, this, &LauncherModel::refresh);

45 refresh();

46}

48LauncherModel::~LauncherModel()

49{

50 while (!m_list.empty()) {

51 m_list.takeFirst()->deleteLater();

52 }

53}

55int LauncherModel::rowCount(const QModelIndex &parent) const

56{

57 Q_UNUSED(parent)

58 return m_list.count();

59}

61QVariant LauncherModel::data(const QModelIndex &index, int role) const

62{

63 LauncherItem *item = m_list.at(index.row());

64 switch(role) {

65 case RoleAppId:

66 return item->appId();

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 RoleCountVisible:

76 return item->countVisible();

77 case RoleProgress:

78 return item->progress();

79 case RoleFocused:

80 return item->focused();

81 }

83 return QVariant();

84}

86unity::shell::launcher::LauncherItemInterface *LauncherModel::get(int index) const

87{

88 if (index < 0 || index >= m_list.count()) {

89 return 0;

90 }

91 return m_list.at(index);

92}

94void LauncherModel::move(int oldIndex, int newIndex)

95{

96 // Make sure its not moved outside the lists

97 if (newIndex < 0) {

98 newIndex = 0;

99 }

100 if (newIndex >= m_list.count()) {

101 newIndex = m_list.count()-1;

102 }

103

104 // Nothing to do?

105 if (oldIndex == newIndex) {

106 return;

107 }

108

109 // QList's and QAbstractItemModel's move implementation differ when moving an item up the list :/

110 // While QList needs the index in the resulting list, beginMoveRows expects it to be in the current list

111 // adjust the model's index by +1 in case we're moving upwards

112 int newModelIndex = newIndex > oldIndex ? newIndex+1 : newIndex;

113

114 beginMoveRows(QModelIndex(), oldIndex, oldIndex, QModelIndex(), newModelIndex);

115 m_list.move(oldIndex, newIndex);

116 endMoveRows();

117

118 if (!m_list.at(newIndex)->pinned()) {

119 pin(m_list.at(newIndex)->appId());

120 } else {

121 storeAppList();

122 }

123}

124

125void LauncherModel::pin(const QString &appId, int index)

126{

127 int currentIndex = findApplication(appId);

128

129 if (currentIndex >= 0) {

130 if (index == -1 || index == currentIndex) {

131 m_list.at(currentIndex)->setPinned(true);

132 QModelIndex modelIndex = this->index(currentIndex);

133 Q_EMIT dataChanged(modelIndex, modelIndex, QVector<int>() << RolePinned);

134 } else {

135 move(currentIndex, index);

136 // move() will store the list to the backend itself, so just exit at this point.

137 return;

138 }

139 } else {

140 if (index == -1) {

141 index = m_list.count();

142 }

143

144 DesktopFileHandler desktopFile(appId);

145 if (!desktopFile.isValid()) {

146 qWarning() << "Can't pin this application, there is no .destkop file available.";

147 return;

148 }

149

150 beginInsertRows(QModelIndex(), index, index);

151 LauncherItem *item = new LauncherItem(appId,

152 desktopFile.displayName(),

153 desktopFile.icon(),

154 this);

155 item->setPinned(true);

156 m_list.insert(index, item);

157 endInsertRows();

158 }

159

160 storeAppList();

161}

162

163void LauncherModel::requestRemove(const QString &appId)

164{

165 int index = findApplication(appId);

166 if (index < 0) {

167 return;

168 }

169

170 if (m_appManager->findApplication(appId)) {

171 m_list.at(index)->setPinned(false);

172 QModelIndex modelIndex = this->index(index);

173 Q_EMIT dataChanged(modelIndex, modelIndex, QVector<int>() << RolePinned);

174 return;

175 }

176

177 beginRemoveRows(QModelIndex(), index, index);

178 m_list.takeAt(index)->deleteLater();

179 endRemoveRows();

180

181 storeAppList();

182}

183

184void LauncherModel::quickListActionInvoked(const QString &appId, int actionIndex)

185{

186 int index = findApplication(appId);

187 if (index < 0) {

188 return;

189 }

190

191 LauncherItem *item = m_list.at(index);

192 QuickListModel *model = qobject_cast<QuickListModel*>(item->quickList());

193 if (model) {

194 QString actionId = model->get(actionIndex).actionId();

195

196 // Check if this is one of the launcher actions we handle ourselves

197 if (actionId == "pin_item") {

198 if (item->pinned()) {

199 requestRemove(appId);

200 } else {

201 pin(appId);

202 }

203 } else if (actionId == "launch_item") {

204 QDesktopServices::openUrl(getUrlForAppId(appId));

205

206 // Nope, we don't know this action, let the backend forward it to the application

207 } else {

208 // TODO: forward quicklist action to app, possibly via m_dbusIface

209 }

210 }

211}

212

213void LauncherModel::setUser(const QString &username)

214{

215 Q_UNUSED(username)

216 qWarning() << "This backend doesn't support multiple users";

217}

218

219QString LauncherModel::getUrlForAppId(const QString &appId) const

220{

221 // appId is either an appId or a legacy app name. Let's find out which

222 if (appId.isEmpty()) {

223 return QString();

224 }

225

226 if (!appId.contains("_")) {

227 return "application:///" + appId + ".desktop";

228 }

229

230 QStringList parts = appId.split('_');

231 QString package = parts.value(0);

232 QString app = parts.value(1, "first-listed-app");

233 return "appid://" + package + "/" + app + "/current-user-version";

234}

235

236ApplicationManagerInterface *LauncherModel::applicationManager() const

237{

238 return m_appManager;

239}

240

241void LauncherModel::setApplicationManager(unity::shell::application::ApplicationManagerInterface *appManager)

242{

243 // Is there already another appmanager set?

244 if (m_appManager) {

245 // Disconnect any signals

246 disconnect(this, SLOT(applicationAdded(QModelIndex,int)));

247 disconnect(this, SLOT(applicationRemoved(QModelIndex,int)));

248 disconnect(this, SLOT(focusedAppIdChanged()));

249

250 // remove any recent/running apps from the launcher

251 QList<int> recentAppIndices;

252 for (int i = 0; i < m_list.count(); ++i) {

253 if (m_list.at(i)->recent()) {

254 recentAppIndices << i;

255 }

256 }

257 int run = 0;

258 while (recentAppIndices.count() > 0) {

259 beginRemoveRows(QModelIndex(), recentAppIndices.first() - run, recentAppIndices.first() - run);

260 m_list.takeAt(recentAppIndices.first() - run)->deleteLater();

261 endRemoveRows();

262 recentAppIndices.takeFirst();

263 ++run;

264 }

265 }

266

267 m_appManager = appManager;

268 connect(m_appManager, SIGNAL(rowsInserted(QModelIndex, int, int)), SLOT(applicationAdded(QModelIndex,int)));

269 connect(m_appManager, SIGNAL(rowsAboutToBeRemoved(QModelIndex,int,int)), SLOT(applicationRemoved(QModelIndex,int)));

270 connect(m_appManager, SIGNAL(focusedApplicationIdChanged()), SLOT(focusedAppIdChanged()));

271

272 Q_EMIT applicationManagerChanged();

273

274 for (int i = 0; i < appManager->count(); ++i) {

275 applicationAdded(QModelIndex(), i);

276 }

277}

278

279

280void LauncherModel::storeAppList()

281{

282 QStringList appIds;

283 Q_FOREACH(LauncherItem *item, m_list) {

284 if (item->pinned()) {

285 appIds << item->appId();

286 }

287 }

288 m_settings->setStoredApplications(appIds);

289}

290

291int LauncherModel::findApplication(const QString &appId)

292{

293 for (int i = 0; i < m_list.count(); ++i) {

294 LauncherItem *item = m_list.at(i);

295 if (item->appId() == appId) {

296 return i;

297 }

298 }

299 return -1;

300}

301

302void LauncherModel::progressChanged(const QString &appId, int progress)

303{

304 int idx = findApplication(appId);

305 if (idx >= 0) {

306 LauncherItem *item = m_list.at(idx);

307 item->setProgress(progress);

308 Q_EMIT dataChanged(index(idx), index(idx), QVector<int>() << RoleProgress);

309 }

310}

311

312void LauncherModel::countChanged(const QString &appId, int count)

313{

314 int idx = findApplication(appId);

315 if (idx >= 0) {

316 LauncherItem *item = m_list.at(idx);

317 item->setCount(count);

318 Q_EMIT dataChanged(index(idx), index(idx), QVector<int>() << RoleCount);

319 }

320}

321

322void LauncherModel::countVisibleChanged(const QString &appId, int countVisible)

323{

324 int idx = findApplication(appId);

325 if (idx >= 0) {

326 LauncherItem *item = m_list.at(idx);

327 item->setCountVisible(countVisible);

328 Q_EMIT dataChanged(index(idx), index(idx), QVector<int>() << RoleCountVisible);

329

330 // If countVisible goes to false, and the item is neither pinned nor recent we can drop it

331 if (!countVisible && !item->pinned() && !item->recent()) {

332 beginRemoveRows(QModelIndex(), idx, idx);

333 m_list.takeAt(idx)->deleteLater();

334 endRemoveRows();

335 }

336 } else {

337 // Need to create a new LauncherItem and show the highlight

338 DesktopFileHandler desktopFile(appId);

339 if (countVisible && desktopFile.isValid()) {

340 LauncherItem *item = new LauncherItem(appId,

341 desktopFile.displayName(),

342 desktopFile.icon());

343 item->setCountVisible(true);

344 beginInsertRows(QModelIndex(), m_list.count(), m_list.count());

345 m_list.append(item);

346 endInsertRows();

347 }

348 }

349}

350

351void LauncherModel::refresh()

352{

353 // First walk through all the existing items and see if we need to remove something

354 QList<LauncherItem*> toBeRemoved;

355 Q_FOREACH (LauncherItem* item, m_list) {

356 DesktopFileHandler desktopFile(item->appId());

357 if (!desktopFile.isValid()) {

358 // Desktop file not available for this app => drop it!

359 toBeRemoved << item;

360 } else if (!m_settings->storedApplications().contains(item->appId())) {

361 // Item not in settings any more => drop it!

362 toBeRemoved << item;

363 } else {

364 int idx = m_list.indexOf(item);

365 item->setName(desktopFile.displayName());

366 item->setIcon(desktopFile.icon());

367 Q_EMIT dataChanged(index(idx), index(idx), QVector<int>() << RoleName << RoleIcon);

368 }

369 }

370

371 Q_FOREACH (LauncherItem* item, toBeRemoved) {

372 requestRemove(item->appId());

373 }

374

375 // This brings the Launcher into sync with the settings backend again. There's an issue though:

376 // If we can't find a .desktop file for an entry we need to skip it. That makes our settingsIndex

377 // go out of sync with the actual index of items. So let's also use an addedIndex which reflects

378 // the settingsIndex minus the skipped items.

379 int addedIndex = 0;

380

381 // Now walk through settings and see if we need to add something

382 for (int settingsIndex = 0; settingsIndex < m_settings->storedApplications().count(); ++settingsIndex) {

383 QString entry = m_settings->storedApplications().at(settingsIndex);

384 int itemIndex = -1;

385 for (int i = 0; i < m_list.count(); ++i) {

386 if (m_list.at(i)->appId() == entry) {

387 itemIndex = i;

388 break;

389 }

390 }

391

392 if (itemIndex == -1) {

393 // Need to add it. Just add it into the addedIndex to keep same ordering as the list

394 // in the settings.

395 DesktopFileHandler desktopFile(entry);

396 if (!desktopFile.isValid()) {

397 qWarning() << "Couldn't find a .desktop file for" << entry << ". Skipping...";

398 continue;

399 }

400

401 LauncherItem *item = new LauncherItem(entry,

402 desktopFile.displayName(),

403 desktopFile.icon(),

404 this);

405 item->setPinned(true);

406 beginInsertRows(QModelIndex(), addedIndex, addedIndex);

407 m_list.insert(addedIndex, item);

408 endInsertRows();

409 } else if (itemIndex != addedIndex) {

410 // The item is already there, but it is in a different place then in the settings.

411 // Move it to the addedIndex

412 beginMoveRows(QModelIndex(), itemIndex, itemIndex, QModelIndex(), addedIndex);

413 m_list.move(itemIndex, addedIndex);

414 endMoveRows();

415 }

416

417 // Just like settingsIndex, this will increase with every item, except the ones we

418 // skipped with the "continue" call above.

419 addedIndex++;

420 }

421}

422

423void LauncherModel::applicationAdded(const QModelIndex &parent, int row)

424{

425 Q_UNUSED(parent);

426

427 ApplicationInfoInterface *app = m_appManager->get(row);

428 if (!app) {

429 qWarning() << "LauncherModel received an applicationAdded signal, but there's no such application!";

430 return;

431 }

432

433 if (app->appId() == "unity8-dash") {

434 // Not adding the dash app

435 return;

436 }

437

438 bool found = false;

439 Q_FOREACH(LauncherItem *item, m_list) {

440 if (app->appId() == item->appId()) {

441 found = true;

442 break;

443 }

444 }

445 if (found) {

446 // Shall we paint some running/recent app highlight? If yes, do it here.

447 } else {

448 LauncherItem *item = new LauncherItem(app->appId(), app->name(), app->icon().toString(), this);

449 item->setRecent(true);

450 item->setFocused(app->focused());

451

452 beginInsertRows(QModelIndex(), m_list.count(), m_list.count());

453 m_list.append(item);

454 endInsertRows();

455 }

456}

457

458void LauncherModel::applicationRemoved(const QModelIndex &parent, int row)

459{

460 Q_UNUSED(parent)

461

462 int appIndex = -1;

463 for (int i = 0; i < m_list.count(); ++i) {

464 if (m_list.at(i)->appId() == m_appManager->get(row)->appId()) {

465 appIndex = i;

466 break;

467 }

468 }

469

470 if (appIndex > -1 && !m_list.at(appIndex)->pinned()) {

471 beginRemoveRows(QModelIndex(), appIndex, appIndex);

472 m_list.takeAt(appIndex)->deleteLater();

473 endRemoveRows();

474 }

475}

476

477void LauncherModel::focusedAppIdChanged()

478{

479 QString appId = m_appManager->focusedApplicationId();

480 for (int i = 0; i < m_list.count(); ++i) {

481 LauncherItem *item = m_list.at(i);

482 if (!item->focused() && item->appId() == appId) {

483 item->setFocused(true);

484 Q_EMIT dataChanged(index(i), index(i), QVector<int>() << RoleFocused);

485 } else if (item->focused() && item->appId() != appId) {

486 item->setFocused(false);

487 Q_EMIT dataChanged(index(i), index(i), QVector<int>() << RoleFocused);

488 }

489 }

490}