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
  32 #include <QApplication>
  33 #include <QDropEvent>
  34
  35 DolphinTabWidget::DolphinTabWidget(QWidget* parent) :
  36     QTabWidget(parent),
  37     m_placesSelectorVisible(true),
  38     m_lastViewedTab(0)
  39 {
  40     connect(this, &DolphinTabWidget::tabCloseRequested,
  41             this, QOverload<int>::of(&DolphinTabWidget::closeTab));
  42     connect(this, &DolphinTabWidget::currentChanged,
  43             this, &DolphinTabWidget::currentTabChanged);
  44
  45     DolphinTabBar* tabBar = new DolphinTabBar(this);
  46     connect(tabBar, &DolphinTabBar::openNewActivatedTab,
  47             this, QOverload<int>::of(&DolphinTabWidget::openNewActivatedTab));
  48     connect(tabBar, &DolphinTabBar::tabDropEvent,
  49             this, &DolphinTabWidget::tabDropEvent);
  50     connect(tabBar, &DolphinTabBar::tabDetachRequested,
  51             this, &DolphinTabWidget::detachTab);
  52     tabBar->hide();
  53
  54     setTabBar(tabBar);
  55     setDocumentMode(true);
  56     setElideMode(Qt::ElideRight);
  57     setUsesScrollButtons(true);
  58 }
  59
  60 DolphinTabPage* DolphinTabWidget::currentTabPage() const
  61 {
  62     return tabPageAt(currentIndex());
  63 }
  64
  65 DolphinTabPage* DolphinTabWidget::nextTabPage() const
  66 {
  67     const int index = currentIndex() + 1;
  68     return tabPageAt(index < count() ? index : 0);
  69 }
  70
  71 DolphinTabPage* DolphinTabWidget::prevTabPage() const
  72 {
  73     const int index = currentIndex() - 1;
  74     return tabPageAt(index >= 0 ? index : (count() - 1));
  75 }
  76
  77 DolphinTabPage* DolphinTabWidget::tabPageAt(const int index) const
  78 {
  79     return static_cast<DolphinTabPage*>(widget(index));
  80 }
  81
  82 void DolphinTabWidget::saveProperties(KConfigGroup& group) const
  83 {
  84     const int tabCount = count();
  85     group.writeEntry("Tab Count", tabCount);
  86     group.writeEntry("Active Tab Index", currentIndex());
  87
  88     for (int i = 0; i < tabCount; ++i) {
  89         const DolphinTabPage* tabPage = tabPageAt(i);
  90         group.writeEntry("Tab Data " % QString::number(i), tabPage->saveState());
  91     }
  92 }
  93
  94 void DolphinTabWidget::readProperties(const KConfigGroup& group)
  95 {
  96     const int tabCount = group.readEntry("Tab Count", 0);
  97     for (int i = 0; i < tabCount; ++i) {
  98         if (i >= count()) {
  99             openNewActivatedTab();
 100         }
 101         if (group.hasKey("Tab Data " % QString::number(i))) {
 102             // Tab state created with Dolphin > 4.14.x
 103             const QByteArray state = group.readEntry("Tab Data " % QString::number(i), QByteArray());
 104             tabPageAt(i)->restoreState(state);
 105         } else {
 106             // Tab state created with Dolphin <= 4.14.x
 107             const QByteArray state = group.readEntry("Tab " % QString::number(i), QByteArray());
 108             tabPageAt(i)->restoreStateV1(state);
 109         }
 110     }
 111
 112     const int index = group.readEntry("Active Tab Index", 0);
 113     setCurrentIndex(index);
 114 }
 115
 116 void DolphinTabWidget::refreshViews()
 117 {
 118     // Left-elision is better when showing full paths, since you care most
 119     // about the current directory which is on the right
 120     if (GeneralSettings::showFullPathInTitlebar()) {
 121         setElideMode(Qt::ElideLeft);
 122     } else {
 123         setElideMode(Qt::ElideRight);
 124     }
 125
 126     const int tabCount = count();
 127     for (int i = 0; i < tabCount; ++i) {
 128         tabBar()->setTabText(i, tabName(tabPageAt(i)));
 129         tabPageAt(i)->refreshViews();
 130     }
 131 }
 132
 133 void DolphinTabWidget::openNewActivatedTab()
 134 {
 135     const DolphinViewContainer* oldActiveViewContainer = currentTabPage()->activeViewContainer();
 136     Q_ASSERT(oldActiveViewContainer);
 137
 138     const bool isUrlEditable = oldActiveViewContainer->urlNavigator()->isUrlEditable();
 139
 140     openNewActivatedTab(oldActiveViewContainer->url());
 141
 142     DolphinViewContainer* newActiveViewContainer = currentTabPage()->activeViewContainer();
 143     Q_ASSERT(newActiveViewContainer);
 144
 145     // The URL navigator of the new tab should have the same editable state
 146     // as the current tab
 147     newActiveViewContainer->urlNavigator()->setUrlEditable(isUrlEditable);
 148
 149     // Always focus the new tab's view
 150     newActiveViewContainer->view()->setFocus();
 151 }
 152
 153 void DolphinTabWidget::openNewActivatedTab(const QUrl& primaryUrl, const QUrl& secondaryUrl)
 154 {
 155     openNewTab(primaryUrl, secondaryUrl);
 156     setCurrentIndex(count() - 1);
 157 }
 158
 159 void DolphinTabWidget::openNewTab(const QUrl& primaryUrl, const QUrl& secondaryUrl, TabPlacement tabPlacement)
 160 {
 161     QWidget* focusWidget = QApplication::focusWidget();
 162
 163     DolphinTabPage* tabPage = new DolphinTabPage(primaryUrl, secondaryUrl, this);
 164     tabPage->setActive(false);
 165     tabPage->setPlacesSelectorVisible(m_placesSelectorVisible);
 166     connect(tabPage, &DolphinTabPage::activeViewChanged,
 167             this, &DolphinTabWidget::activeViewChanged);
 168     connect(tabPage, &DolphinTabPage::activeViewUrlChanged,
 169             this, &DolphinTabWidget::tabUrlChanged);
 170     int newTabIndex = -1;
 171     if (tabPlacement == AfterCurrentTab) {
 172         newTabIndex = currentIndex() + 1;
 173     }
 174     insertTab(newTabIndex, tabPage, QIcon::fromTheme(KIO::iconNameForUrl(primaryUrl)), tabName(tabPage));
 175
 176     if (focusWidget) {
 177         // The DolphinViewContainer grabbed the keyboard focus. As the tab is opened
 178         // in background, assure that the previous focused widget gets the focus back.
 179         focusWidget->setFocus();
 180     }
 181 }
 182
 183 void DolphinTabWidget::openDirectories(const QList<QUrl>& dirs, bool splitView)
 184 {
 185     Q_ASSERT(dirs.size() > 0);
 186
 187     QList<QUrl>::const_iterator it = dirs.constBegin();
 188     while (it != dirs.constEnd()) {
 189         const QUrl& primaryUrl = *(it++);
 190         const int index = getIndexByUrl(primaryUrl);
 191         if (index >= 0) {
 192             setCurrentIndex(index);
 193             continue;
 194         }
 195         if (splitView && (it != dirs.constEnd())) {
 196             const QUrl& secondaryUrl = *(it++);
 197             openNewActivatedTab(primaryUrl, secondaryUrl);
 198         } else {
 199             openNewActivatedTab(primaryUrl);
 200         }
 201     }
 202 }
 203
 204 void DolphinTabWidget::openFiles(const QList<QUrl>& files, bool splitView)
 205 {
 206     Q_ASSERT(files.size() > 0);
 207
 208     // Get all distinct directories from 'files' and open a tab
 209     // for each directory. If the "split view" option is enabled, two
 210     // directories are shown inside one tab (see openDirectories()).
 211     QList<QUrl> dirs;
 212     foreach (const QUrl& url, files) {
 213         const QUrl dir(url.adjusted(QUrl::RemoveFilename));
 214         if (!dirs.contains(dir)) {
 215             dirs.append(dir);
 216         }
 217     }
 218
 219     const int oldTabCount = count();
 220     openDirectories(dirs, splitView);
 221     const int tabCount = count();
 222
 223     // Select the files. Although the files can be split between several
 224     // tabs, there is no need to split 'files' accordingly, as
 225     // the DolphinView will just ignore invalid selections.
 226     for (int i = oldTabCount; i < tabCount; ++i) {
 227         DolphinTabPage* tabPage = tabPageAt(i);
 228         tabPage->markUrlsAsSelected(files);
 229         tabPage->markUrlAsCurrent(files.first());
 230     }
 231 }
 232
 233 void DolphinTabWidget::closeTab()
 234 {
 235     closeTab(currentIndex());
 236 }
 237
 238 void DolphinTabWidget::closeTab(const int index)
 239 {
 240     Q_ASSERT(index >= 0);
 241     Q_ASSERT(index < count());
 242
 243     if (count() < 2) {
 244         // Close Dolphin when closing the last tab.
 245         parentWidget()->close();
 246         return;
 247     }
 248
 249     DolphinTabPage* tabPage = tabPageAt(index);
 250     emit rememberClosedTab(tabPage->activeViewContainer()->url(), tabPage->saveState());
 251
 252     removeTab(index);
 253     tabPage->deleteLater();
 254 }
 255
 256 void DolphinTabWidget::activateNextTab()
 257 {
 258     const int index = currentIndex() + 1;
 259     setCurrentIndex(index < count() ? index : 0);
 260 }
 261
 262 void DolphinTabWidget::activatePrevTab()
 263 {
 264     const int index = currentIndex() - 1;
 265     setCurrentIndex(index >= 0 ? index : (count() - 1));
 266 }
 267
 268 void DolphinTabWidget::slotPlacesPanelVisibilityChanged(bool visible)
 269 {
 270     // The places-selector from the URL navigator should only be shown
 271     // if the places dock is invisible
 272     m_placesSelectorVisible = !visible;
 273
 274     const int tabCount = count();
 275     for (int i = 0; i < tabCount; ++i) {
 276         DolphinTabPage* tabPage = tabPageAt(i);
 277         tabPage->setPlacesSelectorVisible(m_placesSelectorVisible);
 278     }
 279 }
 280
 281 void DolphinTabWidget::restoreClosedTab(const QByteArray& state)
 282 {
 283     openNewActivatedTab();
 284     currentTabPage()->restoreState(state);
 285 }
 286
 287 void DolphinTabWidget::detachTab(int index)
 288 {
 289     Q_ASSERT(index >= 0);
 290
 291     QStringList args;
 292
 293     const DolphinTabPage* tabPage = tabPageAt(index);
 294     args << tabPage->primaryViewContainer()->url().url();
 295     if (tabPage->splitViewEnabled()) {
 296         args << tabPage->secondaryViewContainer()->url().url();
 297         args << QStringLiteral("--split");
 298     }
 299     args << QStringLiteral("--new-window");
 300
 301     const QString command = QStringLiteral("dolphin %1").arg(KShell::joinArgs(args));
 302     KRun::runCommand(command, this);
 303
 304     closeTab(index);
 305 }
 306
 307 void DolphinTabWidget::openNewActivatedTab(int index)
 308 {
 309     Q_ASSERT(index >= 0);
 310     const DolphinTabPage* tabPage = tabPageAt(index);
 311     openNewActivatedTab(tabPage->activeViewContainer()->url());
 312 }
 313
 314 void DolphinTabWidget::tabDropEvent(int index, QDropEvent* event)
 315 {
 316     if (index >= 0) {
 317         DolphinView* view = tabPageAt(index)->activeViewContainer()->view();
 318         view->dropUrls(view->url(), event, view);
 319     }
 320 }
 321
 322 void DolphinTabWidget::tabUrlChanged(const QUrl& url)
 323 {
 324     const int index = indexOf(qobject_cast<QWidget*>(sender()));
 325     if (index >= 0) {
 326         tabBar()->setTabText(index, tabName(tabPageAt(index)));
 327         tabBar()->setTabIcon(index, QIcon::fromTheme(KIO::iconNameForUrl(url)));
 328
 329         // Emit the currentUrlChanged signal if the url of the current tab has been changed.
 330         if (index == currentIndex()) {
 331             emit currentUrlChanged(url);
 332         }
 333     }
 334 }
 335
 336 void DolphinTabWidget::currentTabChanged(int index)
 337 {
 338     // last-viewed tab deactivation
 339     if (DolphinTabPage* tabPage = tabPageAt(m_lastViewedTab)) {
 340         tabPage->setActive(false);
 341     }
 342     DolphinTabPage* tabPage = tabPageAt(index);
 343     DolphinViewContainer* viewContainer = tabPage->activeViewContainer();
 344     emit activeViewChanged(viewContainer);
 345     emit currentUrlChanged(viewContainer->url());
 346     tabPage->setActive(true);
 347     m_lastViewedTab = index;
 348 }
 349
 350 void DolphinTabWidget::tabInserted(int index)
 351 {
 352     QTabWidget::tabInserted(index);
 353
 354     if (count() > 1) {
 355         tabBar()->show();
 356     }
 357
 358     emit tabCountChanged(count());
 359 }
 360
 361 void DolphinTabWidget::tabRemoved(int index)
 362 {
 363     QTabWidget::tabRemoved(index);
 364
 365     // If only one tab is left, then remove the tab entry so that
 366     // closing the last tab is not possible.
 367     if (count() < 2) {
 368         tabBar()->hide();
 369     }
 370
 371     emit tabCountChanged(count());
 372 }
 373
 374 QString DolphinTabWidget::tabName(DolphinTabPage* tabPage) const
 375 {
 376     if (!tabPage) {
 377         return QString();
 378     }
 379     QString name = tabPage->activeViewContainer()->caption();
 380     // Make sure that a '&' inside the directory name is displayed correctly
 381     // and not misinterpreted as a keyboard shortcut in QTabBar::setTabText()
 382     return name.replace('&', QLatin1String("&&"));
 383 }
 384
 385 int DolphinTabWidget::getIndexByUrl(const QUrl& url) const
 386 {
 387     for (int i = 0; i < count(); i++) {
 388         // Conversion to display string is necessary to deal with the '~' alias.
 389         // i.e. to acknowledge that ~/ is equivalent to /home/user/
 390         const QUrl tabUrl = tabPageAt(i)->activeViewContainer()->url();
 391         if (url == tabUrl ||
 392             url.toDisplayString(QUrl::StripTrailingSlash) == tabUrl.toDisplayString(QUrl::StripTrailingSlash)) {
 393             return i;
 394         }
 395     }
 396     return -1;
 397 }