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"

25#include "asadapter.h"

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

29#include <QDesktopServices>

30#include <QDebug>

32using namespace unity::shell::application;

34LauncherModel::LauncherModel(QObject *parent):

35 LauncherModelInterface(parent),

36 m_settings(new GSettings(this)),

37 m_dbusIface(new DBusInterface(this)),

38 m_asAdapter(new ASAdapter()),

39 m_appManager(0)

40{

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

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

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

44 connect(m_dbusIface, &DBusInterface::alertCalled, this, &LauncherModel::alert);

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

48 refresh();

49}

51LauncherModel::~LauncherModel()

52{

53 while (!m_list.empty()) {

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

55 }

57 delete m_asAdapter;

58}

60int LauncherModel::rowCount(const QModelIndex &parent) const

61{

62 Q_UNUSED(parent)

63 return m_list.count();

64}

66QVariant LauncherModel::data(const QModelIndex &index, int role) const

67{

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

69 switch(role) {

70 case RoleAppId:

71 return item->appId();

72 case RoleName:

73 return item->name();

74 case RoleIcon:

75 return item->icon();

76 case RolePinned:

77 return item->pinned();

78 case RoleCount:

79 return item->count();

80 case RoleCountVisible:

81 return item->countVisible();

82 case RoleProgress:

83 return item->progress();

84 case RoleFocused:

85 return item->focused();

86 case RoleAlerting:

87 return item->alerting();

88 }

90 return QVariant();

91}

93void LauncherModel::setAlerting(const QString &appId, bool alerting) {

94 int index = findApplication(appId);

95 if (index >= 0) {

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

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

98 if (!item->focused()) {

99 item->setAlerting(alerting);

100 Q_EMIT dataChanged(modelIndex, modelIndex, QVector<int>() << RoleAlerting);

101 }

102 }

103}

104

105unity::shell::launcher::LauncherItemInterface *LauncherModel::get(int index) const

106{

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

108 return 0;

109 }

110 return m_list.at(index);

111}

112

113void LauncherModel::move(int oldIndex, int newIndex)

114{

115 // Make sure its not moved outside the lists

116 if (newIndex < 0) {

117 newIndex = 0;

118 }

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

120 newIndex = m_list.count()-1;

121 }

122

123 // Nothing to do?

124 if (oldIndex == newIndex) {

125 return;

126 }

127

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

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

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

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

132

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

134 m_list.move(oldIndex, newIndex);

135 endMoveRows();

136

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

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

139 } else {

140 storeAppList();

141 }

142}

143

144void LauncherModel::pin(const QString &appId, int index)

145{

146 int currentIndex = findApplication(appId);

147

148 if (currentIndex >= 0) {

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

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

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

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

153 } else {

154 move(currentIndex, index);

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

156 return;

157 }

158 } else {

159 if (index == -1) {

160 index = m_list.count();

161 }

162

163 DesktopFileHandler desktopFile(appId);

164 if (!desktopFile.isValid()) {

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

166 return;

167 }

168

169 beginInsertRows(QModelIndex(), index, index);

170 LauncherItem *item = new LauncherItem(appId,

171 desktopFile.displayName(),

172 desktopFile.icon(),

173 this);

174 item->setPinned(true);

175 m_list.insert(index, item);

176 endInsertRows();

177 }

178

179 storeAppList();

180}

181

182void LauncherModel::requestRemove(const QString &appId)

183{

184 unpin(appId);

185 storeAppList();

186}

187

188void LauncherModel::quickListActionInvoked(const QString &appId, int actionIndex)

189{

190 int index = findApplication(appId);

191 if (index < 0) {

192 return;

193 }

194

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

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

197 if (model) {

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

199

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

201 if (actionId == "pin_item") {

202 if (item->pinned()) {

203 requestRemove(appId);

204 } else {

205 pin(appId);

206 }

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

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

209

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

211 } else {

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

213 }

214 }

215}

216

217void LauncherModel::setUser(const QString &username)

218{

219 Q_UNUSED(username)

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

221}

222

223QString LauncherModel::getUrlForAppId(const QString &appId) const

224{

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

226 if (appId.isEmpty()) {

227 return QString();

228 }

229

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

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

232 }

233

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

235 QString package = parts.value(0);

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

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

238}

239

240ApplicationManagerInterface *LauncherModel::applicationManager() const

241{

242 return m_appManager;

243}

244

245void LauncherModel::setApplicationManager(unity::shell::application::ApplicationManagerInterface *appManager)

246{

247 // Is there already another appmanager set?

248 if (m_appManager) {

249 // Disconnect any signals

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

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

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

253

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

255 QList<int> recentAppIndices;

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

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

258 recentAppIndices << i;

259 }

260 }

261 int run = 0;

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

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

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

265 endRemoveRows();

266 recentAppIndices.takeFirst();

267 ++run;

268 }

269 }

270

271 m_appManager = appManager;

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

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

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

275

276 Q_EMIT applicationManagerChanged();

277

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

279 applicationAdded(QModelIndex(), i);

280 }

281}

282

283bool LauncherModel::onlyPinned() const

284{

285 return false;

286}

287

288void LauncherModel::setOnlyPinned(bool onlyPinned) {

289 Q_UNUSED(onlyPinned);

290 qWarning() << "This launcher implementation does not support showing only pinned apps";

291}

292

293void LauncherModel::storeAppList()

294{

295 QStringList appIds;

296 Q_FOREACH(LauncherItem *item, m_list) {

297 if (item->pinned()) {

298 appIds << item->appId();

299 }

300 }

301 m_settings->setStoredApplications(appIds);

302 m_asAdapter->syncItems(m_list);

303}

304

305void LauncherModel::unpin(const QString &appId)

306{

307 int index = findApplication(appId);

308 if (index < 0) {

309 return;

310 }

311

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

313 if (m_list.at(index)->pinned()) {

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

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

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

317 }

318 } else {

319 beginRemoveRows(QModelIndex(), index, index);

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

321 endRemoveRows();

322 }

323}

324

325int LauncherModel::findApplication(const QString &appId)

326{

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

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

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

330 return i;

331 }

332 }

333 return -1;

334}

335

336void LauncherModel::progressChanged(const QString &appId, int progress)

337{

338 int idx = findApplication(appId);

339 if (idx >= 0) {

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

341 item->setProgress(progress);

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

343 }

344}

345

346void LauncherModel::countChanged(const QString &appId, int count)

347{

348 int idx = findApplication(appId);

349 if (idx >= 0) {

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

351 item->setCount(count);

352 if (item->countVisible()) {

353 setAlerting(item->appId(), true);

354 }

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

356 m_asAdapter->syncItems(m_list);

357 }

358}

359

360void LauncherModel::countVisibleChanged(const QString &appId, int countVisible)

361{

362 int idx = findApplication(appId);

363 if (idx >= 0) {

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

365 item->setCountVisible(countVisible);

366 if (countVisible) {

367 setAlerting(item->appId(), true);

368 }

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

370

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

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

373 beginRemoveRows(QModelIndex(), idx, idx);

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

375 endRemoveRows();

376 }

377 } else {

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

379 DesktopFileHandler desktopFile(appId);

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

381 LauncherItem *item = new LauncherItem(appId,

382 desktopFile.displayName(),

383 desktopFile.icon());

384 item->setCountVisible(true);

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

386 m_list.append(item);

387 endInsertRows();

388 Q_EMIT hint();

389 }

390 }

391 m_asAdapter->syncItems(m_list);

392}

393

394void LauncherModel::refresh()

395{

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

397 QList<LauncherItem*> toBeRemoved;

398 Q_FOREACH (LauncherItem* item, m_list) {

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

400 if (!desktopFile.isValid()) {

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

402 toBeRemoved << item;

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

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

405 toBeRemoved << item;

406 } else {

407 int idx = m_list.indexOf(item);

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

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

410 item->setPinned(item->pinned()); // update pinned text if needed

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

412 }

413 }

414

415 Q_FOREACH (LauncherItem* item, toBeRemoved) {

416 unpin(item->appId());

417 }

418

419 bool changed = toBeRemoved.count() > 0;

420

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

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

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

424 // the settingsIndex minus the skipped items.

425 int addedIndex = 0;

426

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

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

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

430 int itemIndex = -1;

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

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

433 itemIndex = i;

434 break;

435 }

436 }

437

438 if (itemIndex == -1) {

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

440 // in the settings.

441 DesktopFileHandler desktopFile(entry);

442 if (!desktopFile.isValid()) {

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

444 continue;

445 }

446

447 LauncherItem *item = new LauncherItem(entry,

448 desktopFile.displayName(),

449 desktopFile.icon(),

450 this);

451 item->setPinned(true);

452 beginInsertRows(QModelIndex(), addedIndex, addedIndex);

453 m_list.insert(addedIndex, item);

454 endInsertRows();

455 changed = true;

456 } else if (itemIndex != addedIndex) {

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

458 // Move it to the addedIndex

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

460 m_list.move(itemIndex, addedIndex);

461 endMoveRows();

462 changed = true;

463 }

464

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

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

467 addedIndex++;

468 }

469

470 if (changed) {

471 Q_EMIT hint();

472 }

473

474 m_asAdapter->syncItems(m_list);

475}

476

477void LauncherModel::alert(const QString &appId)

478{

479 int idx = findApplication(appId);

480 if (idx >= 0) {

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

482 setAlerting(item->appId(), true);

483 Q_EMIT dataChanged(index(idx), index(idx), QVector<int>() << RoleAlerting);

484 }

485}

486

487void LauncherModel::applicationAdded(const QModelIndex &parent, int row)

488{

489 Q_UNUSED(parent);

490

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

492 if (!app) {

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

494 return;

495 }

496

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

498 // Not adding the dash app

499 return;

500 }

501

502 int itemIndex = findApplication(app->appId());

503 if (itemIndex != -1) {

504 LauncherItem *item = m_list.at(itemIndex);

505 if (!item->recent()) {

506 item->setRecent(true);

507 m_asAdapter->syncItems(m_list);

508 Q_EMIT dataChanged(index(itemIndex), index(itemIndex), QVector<int>() << RoleRecent);

509 }

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

511 } else {

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

513 item->setRecent(true);

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

515

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

517 m_list.append(item);

518 endInsertRows();

519 m_asAdapter->syncItems(m_list);

520 }

521}

522

523void LauncherModel::applicationRemoved(const QModelIndex &parent, int row)

524{

525 Q_UNUSED(parent)

526

527 int appIndex = -1;

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

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

530 appIndex = i;

531 break;

532 }

533 }

534

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

536 beginRemoveRows(QModelIndex(), appIndex, appIndex);

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

538 endRemoveRows();

539 m_asAdapter->syncItems(m_list);

540 }

541}

542

543void LauncherModel::focusedAppIdChanged()

544{

545 QString appId = m_appManager->focusedApplicationId();

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

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

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

549 item->setFocused(true);

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

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

552 item->setFocused(false);

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

554 }

555 }

556}