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->setPlacesSelectorVisible(m_placesSelectorVisible);
 165     connect(tabPage, &DolphinTabPage::activeViewChanged,
 166             this, &DolphinTabWidget::activeViewChanged);
 167     connect(tabPage, &DolphinTabPage::activeViewUrlChanged,
 168             this, &DolphinTabWidget::tabUrlChanged);
 169     int newTabIndex = -1;
 170     if (tabPlacement == AfterCurrentTab) {
 171         newTabIndex = currentIndex() + 1;
 172     }
 173     insertTab(newTabIndex, tabPage, QIcon::fromTheme(KIO::iconNameForUrl(primaryUrl)), tabName(tabPage));
 174
 175     if (focusWidget) {
 176         // The DolphinViewContainer grabbed the keyboard focus. As the tab is opened
 177         // in background, assure that the previous focused widget gets the focus back.
 178         focusWidget->setFocus();
 179     }
 180 }
 181
 182 void DolphinTabWidget::openDirectories(const QList<QUrl>& dirs, bool splitView)
 183 {
 184     Q_ASSERT(dirs.size() > 0);
 185
 186     QList<QUrl>::const_iterator it = dirs.constBegin();
 187     while (it != dirs.constEnd()) {
 188         const QUrl& primaryUrl = *(it++);
 189         const int index = getIndexByUrl(primaryUrl);
 190         if (index >= 0) {
 191             setCurrentIndex(index);
 192             continue;
 193         }
 194         if (splitView && (it != dirs.constEnd())) {
 195             const QUrl& secondaryUrl = *(it++);
 196             openNewActivatedTab(primaryUrl, secondaryUrl);
 197         } else {
 198             openNewActivatedTab(primaryUrl);
 199         }
 200     }
 201 }
 202
 203 void DolphinTabWidget::openFiles(const QList<QUrl>& files, bool splitView)
 204 {
 205     Q_ASSERT(files.size() > 0);
 206
 207     // Get all distinct directories from 'files' and open a tab
 208     // for each directory. If the "split view" option is enabled, two
 209     // directories are shown inside one tab (see openDirectories()).
 210     QList<QUrl> dirs;
 211     foreach (const QUrl& url, files) {
 212         const QUrl dir(url.adjusted(QUrl::RemoveFilename));
 213         if (!dirs.contains(dir)) {
 214             dirs.append(dir);
 215         }
 216     }
 217
 218     const int oldTabCount = count();
 219     openDirectories(dirs, splitView);
 220     const int tabCount = count();
 221
 222     // Select the files. Although the files can be split between several
 223     // tabs, there is no need to split 'files' accordingly, as
 224     // the DolphinView will just ignore invalid selections.
 225     for (int i = oldTabCount; i < tabCount; ++i) {
 226         DolphinTabPage* tabPage = tabPageAt(i);
 227         tabPage->markUrlsAsSelected(files);
 228         tabPage->markUrlAsCurrent(files.first());
 229     }
 230 }
 231
 232 void DolphinTabWidget::closeTab()
 233 {
 234     closeTab(currentIndex());
 235 }
 236
 237 void DolphinTabWidget::closeTab(const int index)
 238 {
 239     Q_ASSERT(index >= 0);
 240     Q_ASSERT(index < count());
 241
 242     if (count() < 2) {
 243         // Close Dolphin when closing the last tab.
 244         parentWidget()->close();
 245         return;
 246     }
 247
 248     DolphinTabPage* tabPage = tabPageAt(index);
 249     emit rememberClosedTab(tabPage->activeViewContainer()->url(), tabPage->saveState());
 250
 251     removeTab(index);
 252     tabPage->deleteLater();
 253 }
 254
 255 void DolphinTabWidget::activateNextTab()
 256 {
 257     const int index = currentIndex() + 1;
 258     setCurrentIndex(index < count() ? index : 0);
 259 }
 260
 261 void DolphinTabWidget::activatePrevTab()
 262 {
 263     const int index = currentIndex() - 1;
 264     setCurrentIndex(index >= 0 ? index : (count() - 1));
 265 }
 266
 267 void DolphinTabWidget::slotPlacesPanelVisibilityChanged(bool visible)
 268 {
 269     // The places-selector from the URL navigator should only be shown
 270     // if the places dock is invisible
 271     m_placesSelectorVisible = !visible;
 272
 273     const int tabCount = count();
 274     for (int i = 0; i < tabCount; ++i) {
 275         DolphinTabPage* tabPage = tabPageAt(i);
 276         tabPage->setPlacesSelectorVisible(m_placesSelectorVisible);
 277     }
 278 }
 279
 280 void DolphinTabWidget::restoreClosedTab(const QByteArray& state)
 281 {
 282     openNewActivatedTab();
 283     currentTabPage()->restoreState(state);
 284 }
 285
 286 void DolphinTabWidget::detachTab(int index)
 287 {
 288     Q_ASSERT(index >= 0);
 289
 290     QStringList args;
 291
 292     const DolphinTabPage* tabPage = tabPageAt(index);
 293     args << tabPage->primaryViewContainer()->url().url();
 294     if (tabPage->splitViewEnabled()) {
 295         args << tabPage->secondaryViewContainer()->url().url();
 296         args << QStringLiteral("--split");
 297     }
 298     args << QStringLiteral("--new-window");
 299
 300     const QString command = QStringLiteral("dolphin %1").arg(KShell::joinArgs(args));
 301     KRun::runCommand(command, this);
 302
 303     closeTab(index);
 304 }
 305
 306 void DolphinTabWidget::openNewActivatedTab(int index)
 307 {
 308     Q_ASSERT(index >= 0);
 309     const DolphinTabPage* tabPage = tabPageAt(index);
 310     openNewActivatedTab(tabPage->activeViewContainer()->url());
 311 }
 312
 313 void DolphinTabWidget::tabDropEvent(int index, QDropEvent* event)
 314 {
 315     if (index >= 0) {
 316         DolphinView* view = tabPageAt(index)->activeViewContainer()->view();
 317         view->dropUrls(view->url(), event, view);
 318     }
 319 }
 320
 321 void DolphinTabWidget::tabUrlChanged(const QUrl& url)
 322 {
 323     const int index = indexOf(qobject_cast<QWidget*>(sender()));
 324     if (index >= 0) {
 325         tabBar()->setTabText(index, tabName(tabPageAt(index)));
 326         tabBar()->setTabIcon(index, QIcon::fromTheme(KIO::iconNameForUrl(url)));
 327
 328         // Emit the currentUrlChanged signal if the url of the current tab has been changed.
 329         if (index == currentIndex()) {
 330             emit currentUrlChanged(url);
 331         }
 332     }
 333 }
 334
 335 void DolphinTabWidget::currentTabChanged(int index)
 336 {
 337     // last-viewed tab deactivation
 338     if (DolphinTabPage* tabPage = tabPageAt(m_lastViewedTab)) {
 339         tabPage->setActive(false);
 340     }
 341     DolphinTabPage* tabPage = tabPageAt(index);
 342     DolphinViewContainer* viewContainer = tabPage->activeViewContainer();
 343     emit activeViewChanged(viewContainer);
 344     emit currentUrlChanged(viewContainer->url());
 345     tabPage->setActive(true);
 346     m_lastViewedTab = index;
 347 }
 348
 349 void DolphinTabWidget::tabInserted(int index)
 350 {
 351     QTabWidget::tabInserted(index);
 352
 353     if (count() > 1) {
 354         tabBar()->show();
 355     }
 356
 357     emit tabCountChanged(count());
 358 }
 359
 360 void DolphinTabWidget::tabRemoved(int index)
 361 {
 362     QTabWidget::tabRemoved(index);
 363
 364     // If only one tab is left, then remove the tab entry so that
 365     // closing the last tab is not possible.
 366     if (count() < 2) {
 367         tabBar()->hide();
 368     }
 369
 370     emit tabCountChanged(count());
 371 }
 372
 373 QString DolphinTabWidget::tabName(DolphinTabPage* tabPage) const
 374 {
 375     if (!tabPage) {
 376         return QString();
 377     }
 378     QString name = tabPage->activeViewContainer()->caption();
 379     // Make sure that a '&' inside the directory name is displayed correctly
 380     // and not misinterpreted as a keyboard shortcut in QTabBar::setTabText()
 381     return name.replace('&', QLatin1String("&&"));
 382 }
 383
 384 int DolphinTabWidget::getIndexByUrl(const QUrl& url) const
 385 {
 386     for (int i = 0; i < count(); i++) {
 387         // Conversion to display string is necessary to deal with the '~' alias.
 388         // i.e. to acknowledge that ~/ is equivalent to /home/user/
 389         const QUrl tabUrl = tabPageAt(i)->activeViewContainer()->url();
 390         if (url == tabUrl ||
 391             url.toDisplayString(QUrl::StripTrailingSlash) == tabUrl.toDisplayString(QUrl::StripTrailingSlash)) {
 392             return i;
 393         }
 394     }
 395     return -1;
 396 }