src/dolphintabwidget.cpp

   1 /***************************************************************************
   2  * Copyright (C) 2014 by Emmanuel Pescosta <emmanuelpescosta099@gmail.com> *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  18  ***************************************************************************/
  19
  20 #include "dolphintabwidget.h"
  21
  22 #include "dolphin_generalsettings.h"
  23 #include "dolphintabbar.h"
  24 #include "dolphintabpage.h"
  25 #include "dolphinviewcontainer.h"
  26
  27 #include <KConfigGroup>
  28 #include <KRun>
  29 #include <KShell>
  30 #include <kio/global.h>
  31 #include <KAcceleratorManager>
  32
  33 #include <QApplication>
  34 #include <QDropEvent>
  35
  36 DolphinTabWidget::DolphinTabWidget(QWidget* parent) :
  37     QTabWidget(parent),
  38     m_placesSelectorVisible(true),
  39     m_lastViewedTab(0)
  40 {
  41     KAcceleratorManager::setNoAccel(this);
  42
  43     connect(this, &DolphinTabWidget::tabCloseRequested,
  44             this, QOverload<int>::of(&DolphinTabWidget::closeTab));
  45     connect(this, &DolphinTabWidget::currentChanged,
  46             this, &DolphinTabWidget::currentTabChanged);
  47
  48     DolphinTabBar* tabBar = new DolphinTabBar(this);
  49     connect(tabBar, &DolphinTabBar::openNewActivatedTab,
  50             this, QOverload<int>::of(&DolphinTabWidget::openNewActivatedTab));
  51     connect(tabBar, &DolphinTabBar::tabDropEvent,
  52             this, &DolphinTabWidget::tabDropEvent);
  53     connect(tabBar, &DolphinTabBar::tabDetachRequested,
  54             this, &DolphinTabWidget::detachTab);
  55     tabBar->hide();
  56
  57     setTabBar(tabBar);
  58     setDocumentMode(true);
  59     setElideMode(Qt::ElideRight);
  60     setUsesScrollButtons(true);
  61 }
  62
  63 DolphinTabPage* DolphinTabWidget::currentTabPage() const
  64 {
  65     return tabPageAt(currentIndex());
  66 }
  67
  68 DolphinTabPage* DolphinTabWidget::nextTabPage() const
  69 {
  70     const int index = currentIndex() + 1;
  71     return tabPageAt(index < count() ? index : 0);
  72 }
  73
  74 DolphinTabPage* DolphinTabWidget::prevTabPage() const
  75 {
  76     const int index = currentIndex() - 1;
  77     return tabPageAt(index >= 0 ? index : (count() - 1));
  78 }
  79
  80 DolphinTabPage* DolphinTabWidget::tabPageAt(const int index) const
  81 {
  82     return static_cast<DolphinTabPage*>(widget(index));
  83 }
  84
  85 void DolphinTabWidget::saveProperties(KConfigGroup& group) const
  86 {
  87     const int tabCount = count();
  88     group.writeEntry("Tab Count", tabCount);
  89     group.writeEntry("Active Tab Index", currentIndex());
  90
  91     for (int i = 0; i < tabCount; ++i) {
  92         const DolphinTabPage* tabPage = tabPageAt(i);
  93         group.writeEntry("Tab Data " % QString::number(i), tabPage->saveState());
  94     }
  95 }
  96
  97 void DolphinTabWidget::readProperties(const KConfigGroup& group)
  98 {
  99     const int tabCount = group.readEntry("Tab Count", 0);
 100     for (int i = 0; i < tabCount; ++i) {
 101         if (i >= count()) {
 102             openNewActivatedTab();
 103         }
 104         if (group.hasKey("Tab Data " % QString::number(i))) {
 105             // Tab state created with Dolphin > 4.14.x
 106             const QByteArray state = group.readEntry("Tab Data " % QString::number(i), QByteArray());
 107             tabPageAt(i)->restoreState(state);
 108         } else {
 109             // Tab state created with Dolphin <= 4.14.x
 110             const QByteArray state = group.readEntry("Tab " % QString::number(i), QByteArray());
 111             tabPageAt(i)->restoreStateV1(state);
 112         }
 113     }
 114
 115     const int index = group.readEntry("Active Tab Index", 0);
 116     setCurrentIndex(index);
 117 }
 118
 119 void DolphinTabWidget::refreshViews()
 120 {
 121     // Left-elision is better when showing full paths, since you care most
 122     // about the current directory which is on the right
 123     if (GeneralSettings::showFullPathInTitlebar()) {
 124         setElideMode(Qt::ElideLeft);
 125     } else {
 126         setElideMode(Qt::ElideRight);
 127     }
 128
 129     const int tabCount = count();
 130     for (int i = 0; i < tabCount; ++i) {
 131         tabBar()->setTabText(i, tabName(tabPageAt(i)));
 132         tabPageAt(i)->refreshViews();
 133     }
 134 }
 135
 136 bool DolphinTabWidget::isUrlOpen(const QUrl &url) const
 137 {
 138     return indexByUrl(url).first >= 0;
 139 }
 140
 141 void DolphinTabWidget::openNewActivatedTab()
 142 {
 143     const DolphinViewContainer* oldActiveViewContainer = currentTabPage()->activeViewContainer();
 144     Q_ASSERT(oldActiveViewContainer);
 145
 146     const bool isUrlEditable = oldActiveViewContainer->urlNavigator()->isUrlEditable();
 147
 148     openNewActivatedTab(oldActiveViewContainer->url());
 149
 150     DolphinViewContainer* newActiveViewContainer = currentTabPage()->activeViewContainer();
 151     Q_ASSERT(newActiveViewContainer);
 152
 153     // The URL navigator of the new tab should have the same editable state
 154     // as the current tab
 155     newActiveViewContainer->urlNavigator()->setUrlEditable(isUrlEditable);
 156
 157     // Always focus the new tab's view
 158     newActiveViewContainer->view()->setFocus();
 159 }
 160
 161 void DolphinTabWidget::openNewActivatedTab(const QUrl& primaryUrl, const QUrl& secondaryUrl)
 162 {
 163     openNewTab(primaryUrl, secondaryUrl);
 164     setCurrentIndex(count() - 1);
 165 }
 166
 167 void DolphinTabWidget::openNewTab(const QUrl& primaryUrl, const QUrl& secondaryUrl, TabPlacement tabPlacement)
 168 {
 169     QWidget* focusWidget = QApplication::focusWidget();
 170
 171     DolphinTabPage* tabPage = new DolphinTabPage(primaryUrl, secondaryUrl, this);
 172     tabPage->setActive(false);
 173     tabPage->setPlacesSelectorVisible(m_placesSelectorVisible);
 174     connect(tabPage, &DolphinTabPage::activeViewChanged,
 175             this, &DolphinTabWidget::activeViewChanged);
 176     connect(tabPage, &DolphinTabPage::activeViewUrlChanged,
 177             this, &DolphinTabWidget::tabUrlChanged);
 178     int newTabIndex = -1;
 179     if (tabPlacement == AfterCurrentTab) {
 180         newTabIndex = currentIndex() + 1;
 181     }
 182     insertTab(newTabIndex, tabPage, QIcon() /* loaded in tabInserted */, tabName(tabPage));
 183
 184     if (focusWidget) {
 185         // The DolphinViewContainer grabbed the keyboard focus. As the tab is opened
 186         // in background, assure that the previous focused widget gets the focus back.
 187         focusWidget->setFocus();
 188     }
 189 }
 190
 191 void DolphinTabWidget::openDirectories(const QList<QUrl>& dirs, bool splitView)
 192 {
 193     Q_ASSERT(dirs.size() > 0);
 194
 195     QList<QUrl>::const_iterator it = dirs.constBegin();
 196     while (it != dirs.constEnd()) {
 197         const QUrl& primaryUrl = *(it++);
 198         const QPair<int, bool> indexInfo = indexByUrl(primaryUrl);
 199         const int index = indexInfo.first;
 200         const bool isInPrimaryView = indexInfo.second;
 201         if (index >= 0) {
 202             setCurrentIndex(index);
 203             const auto tabPage = tabPageAt(index);
 204             if (isInPrimaryView) {
 205                 tabPage->primaryViewContainer()->setActive(true);
 206             } else {
 207                 tabPage->secondaryViewContainer()->setActive(true);
 208             }
 209             continue;
 210         }
 211         if (splitView && (it != dirs.constEnd())) {
 212             const QUrl& secondaryUrl = *(it++);
 213             openNewActivatedTab(primaryUrl, secondaryUrl);
 214         } else {
 215             openNewActivatedTab(primaryUrl);
 216         }
 217     }
 218 }
 219
 220 void DolphinTabWidget::openFiles(const QList<QUrl>& files, bool splitView)
 221 {
 222     Q_ASSERT(files.size() > 0);
 223
 224     // Get all distinct directories from 'files' and open a tab
 225     // for each directory. If the "split view" option is enabled, two
 226     // directories are shown inside one tab (see openDirectories()).
 227     QList<QUrl> dirs;
 228     foreach (const QUrl& url, files) {
 229         const QUrl dir(url.adjusted(QUrl::RemoveFilename));
 230         if (!dirs.contains(dir)) {
 231             dirs.append(dir);
 232         }
 233     }
 234
 235     const int oldTabCount = count();
 236     openDirectories(dirs, splitView);
 237     const int tabCount = count();
 238
 239     // Select the files. Although the files can be split between several
 240     // tabs, there is no need to split 'files' accordingly, as
 241     // the DolphinView will just ignore invalid selections.
 242     for (int i = oldTabCount; i < tabCount; ++i) {
 243         DolphinTabPage* tabPage = tabPageAt(i);
 244         tabPage->markUrlsAsSelected(files);
 245         tabPage->markUrlAsCurrent(files.first());
 246     }
 247 }
 248
 249 void DolphinTabWidget::closeTab()
 250 {
 251     closeTab(currentIndex());
 252 }
 253
 254 void DolphinTabWidget::closeTab(const int index)
 255 {
 256     Q_ASSERT(index >= 0);
 257     Q_ASSERT(index < count());
 258
 259     if (count() < 2) {
 260         // Close Dolphin when closing the last tab.
 261         parentWidget()->close();
 262         return;
 263     }
 264
 265     DolphinTabPage* tabPage = tabPageAt(index);
 266     emit rememberClosedTab(tabPage->activeViewContainer()->url(), tabPage->saveState());
 267
 268     removeTab(index);
 269     tabPage->deleteLater();
 270 }
 271
 272 void DolphinTabWidget::activateTab(const int index)
 273 {
 274     if (index < count()) {
 275         setCurrentIndex(index);
 276     }
 277 }
 278
 279 void DolphinTabWidget::activateLastTab()
 280 {
 281     setCurrentIndex(count() - 1);
 282 }
 283
 284 void DolphinTabWidget::activateNextTab()
 285 {
 286     const int index = currentIndex() + 1;
 287     setCurrentIndex(index < count() ? index : 0);
 288 }
 289
 290 void DolphinTabWidget::activatePrevTab()
 291 {
 292     const int index = currentIndex() - 1;
 293     setCurrentIndex(index >= 0 ? index : (count() - 1));
 294 }
 295
 296 void DolphinTabWidget::slotPlacesPanelVisibilityChanged(bool visible)
 297 {
 298     // The places-selector from the URL navigator should only be shown
 299     // if the places dock is invisible
 300     m_placesSelectorVisible = !visible;
 301
 302     const int tabCount = count();
 303     for (int i = 0; i < tabCount; ++i) {
 304         DolphinTabPage* tabPage = tabPageAt(i);
 305         tabPage->setPlacesSelectorVisible(m_placesSelectorVisible);
 306     }
 307 }
 308
 309 void DolphinTabWidget::restoreClosedTab(const QByteArray& state)
 310 {
 311     openNewActivatedTab();
 312     currentTabPage()->restoreState(state);
 313 }
 314
 315 void DolphinTabWidget::detachTab(int index)
 316 {
 317     Q_ASSERT(index >= 0);
 318
 319     QStringList args;
 320
 321     const DolphinTabPage* tabPage = tabPageAt(index);
 322     args << tabPage->primaryViewContainer()->url().url();
 323     if (tabPage->splitViewEnabled()) {
 324         args << tabPage->secondaryViewContainer()->url().url();
 325         args << QStringLiteral("--split");
 326     }
 327     args << QStringLiteral("--new-window");
 328
 329     const QString command = QStringLiteral("dolphin %1").arg(KShell::joinArgs(args));
 330     KRun::runCommand(command, this);
 331
 332     closeTab(index);
 333 }
 334
 335 void DolphinTabWidget::openNewActivatedTab(int index)
 336 {
 337     Q_ASSERT(index >= 0);
 338     const DolphinTabPage* tabPage = tabPageAt(index);
 339     openNewActivatedTab(tabPage->activeViewContainer()->url());
 340 }
 341
 342 void DolphinTabWidget::tabDropEvent(int index, QDropEvent* event)
 343 {
 344     if (index >= 0) {
 345         DolphinView* view = tabPageAt(index)->activeViewContainer()->view();
 346         view->dropUrls(view->url(), event, view);
 347     }
 348 }
 349
 350 void DolphinTabWidget::tabUrlChanged(const QUrl& url)
 351 {
 352     const int index = indexOf(qobject_cast<QWidget*>(sender()));
 353     if (index >= 0) {
 354         tabBar()->setTabText(index, tabName(tabPageAt(index)));
 355         if (tabBar()->isVisible()) {
 356             tabBar()->setTabIcon(index, QIcon::fromTheme(KIO::iconNameForUrl(url)));
 357         } else {
 358             // Mark as dirty, actually load once the tab bar actually gets shown
 359             tabBar()->setTabIcon(index, QIcon());
 360         }
 361
 362         // Emit the currentUrlChanged signal if the url of the current tab has been changed.
 363         if (index == currentIndex()) {
 364             emit currentUrlChanged(url);
 365         }
 366     }
 367 }
 368
 369 void DolphinTabWidget::currentTabChanged(int index)
 370 {
 371     // last-viewed tab deactivation
 372     if (DolphinTabPage* tabPage = tabPageAt(m_lastViewedTab)) {
 373         tabPage->setActive(false);
 374     }
 375     DolphinTabPage* tabPage = tabPageAt(index);
 376     DolphinViewContainer* viewContainer = tabPage->activeViewContainer();
 377     emit activeViewChanged(viewContainer);
 378     emit currentUrlChanged(viewContainer->url());
 379     tabPage->setActive(true);
 380     m_lastViewedTab = index;
 381 }
 382
 383 void DolphinTabWidget::tabInserted(int index)
 384 {
 385     QTabWidget::tabInserted(index);
 386
 387     if (count() > 1) {
 388         // Resolve all pending tab icons
 389         for (int i = 0; i < count(); ++i) {
 390             if (tabBar()->tabIcon(i).isNull()) {
 391                 tabBar()->setTabIcon(i, QIcon::fromTheme(KIO::iconNameForUrl(tabPageAt(i)->activeViewContainer()->url())));
 392             }
 393         }
 394
 395         tabBar()->show();
 396     }
 397
 398     emit tabCountChanged(count());
 399 }
 400
 401 void DolphinTabWidget::tabRemoved(int index)
 402 {
 403     QTabWidget::tabRemoved(index);
 404
 405     // If only one tab is left, then remove the tab entry so that
 406     // closing the last tab is not possible.
 407     if (count() < 2) {
 408         tabBar()->hide();
 409     }
 410
 411     emit tabCountChanged(count());
 412 }
 413
 414 QString DolphinTabWidget::tabName(DolphinTabPage* tabPage) const
 415 {
 416     if (!tabPage) {
 417         return QString();
 418     }
 419     QString name = tabPage->activeViewContainer()->caption();
 420     // Make sure that a '&' inside the directory name is displayed correctly
 421     // and not misinterpreted as a keyboard shortcut in QTabBar::setTabText()
 422     return name.replace('&', QLatin1String("&&"));
 423 }
 424
 425 QPair<int, bool> DolphinTabWidget::indexByUrl(const QUrl& url) const
 426 {
 427     for (int i = 0; i < count(); i++) {
 428         const auto tabPage = tabPageAt(i);
 429         if (url == tabPage->primaryViewContainer()->url()) {
 430             return qMakePair(i, true);
 431         }
 432
 433         if (tabPage->splitViewEnabled() && url == tabPage->secondaryViewContainer()->url()) {
 434             return qMakePair(i, false);
 435         }
 436     }
 437     return qMakePair(-1, false);
 438 }