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 "dolphintabbar.h"
  23 #include "dolphintabpage.h"
  24 #include "dolphinviewcontainer.h"
  25
  26 #include <QApplication>
  27 #include <KConfigGroup>
  28 #include <kio/global.h>
  29 #include <KRun>
  30
  31 DolphinTabWidget::DolphinTabWidget(QWidget* parent) :
  32     QTabWidget(parent),
  33     m_placesSelectorVisible(true)
  34 {
  35     connect(this, SIGNAL(tabCloseRequested(int)),
  36             this, SLOT(closeTab(int)));
  37     connect(this, SIGNAL(currentChanged(int)),
  38             this, SLOT(currentTabChanged(int)));
  39
  40     DolphinTabBar* tabBar = new DolphinTabBar(this);
  41     connect(tabBar, SIGNAL(openNewActivatedTab(int)),
  42             this, SLOT(openNewActivatedTab(int)));
  43     connect(tabBar, SIGNAL(tabDropEvent(int,QDropEvent*)),
  44             this, SLOT(tabDropEvent(int,QDropEvent*)));
  45     connect(tabBar, SIGNAL(tabDetachRequested(int)),
  46             this, SLOT(detachTab(int)));
  47     tabBar->hide();
  48
  49     setTabBar(tabBar);
  50     setDocumentMode(true);
  51     setElideMode(Qt::ElideRight);
  52     setUsesScrollButtons(true);
  53 }
  54
  55 DolphinTabPage* DolphinTabWidget::currentTabPage() const
  56 {
  57     return tabPageAt(currentIndex());
  58 }
  59
  60 DolphinTabPage* DolphinTabWidget::tabPageAt(const int index) const
  61 {
  62     return static_cast<DolphinTabPage*>(widget(index));
  63 }
  64
  65 void DolphinTabWidget::saveProperties(KConfigGroup& group) const
  66 {
  67     const int tabCount = count();
  68     group.writeEntry("Tab Count", tabCount);
  69     group.writeEntry("Active Tab Index", currentIndex());
  70
  71     for (int i = 0; i < tabCount; ++i) {
  72         const DolphinTabPage* tabPage = tabPageAt(i);
  73         group.writeEntry("Tab Data " % QString::number(i), tabPage->saveState());
  74     }
  75 }
  76
  77 void DolphinTabWidget::readProperties(const KConfigGroup& group)
  78 {
  79     const int tabCount = group.readEntry("Tab Count", 0);
  80     for (int i = 0; i < tabCount; ++i) {
  81         if (i >= count()) {
  82             openNewActivatedTab();
  83         }
  84         if (group.hasKey("Tab Data " % QString::number(i))) {
  85             // Tab state created with Dolphin > 4.14.x
  86             const QByteArray state = group.readEntry("Tab Data " % QString::number(i), QByteArray());
  87             tabPageAt(i)->restoreState(state);
  88         } else {
  89             // Tab state created with Dolphin <= 4.14.x
  90             const QByteArray state = group.readEntry("Tab " % QString::number(i), QByteArray());
  91             tabPageAt(i)->restoreStateV1(state);
  92         }
  93     }
  94
  95     const int index = group.readEntry("Active Tab Index", 0);
  96     setCurrentIndex(index);
  97 }
  98
  99 void DolphinTabWidget::refreshViews()
 100 {
 101     const int tabCount = count();
 102     for (int i = 0; i < tabCount; ++i) {
 103         tabPageAt(i)->refreshViews();
 104     }
 105 }
 106
 107 void DolphinTabWidget::openNewActivatedTab()
 108 {
 109     const DolphinViewContainer* oldActiveViewContainer = currentTabPage()->activeViewContainer();
 110     Q_ASSERT(oldActiveViewContainer);
 111
 112     const bool isUrlEditable = oldActiveViewContainer->urlNavigator()->isUrlEditable();
 113
 114     openNewActivatedTab(oldActiveViewContainer->url());
 115
 116     DolphinViewContainer* newActiveViewContainer = currentTabPage()->activeViewContainer();
 117     Q_ASSERT(newActiveViewContainer);
 118
 119     // The URL navigator of the new tab should have the same editable state
 120     // as the current tab
 121     KUrlNavigator* navigator = newActiveViewContainer->urlNavigator();
 122     navigator->setUrlEditable(isUrlEditable);
 123
 124     if (isUrlEditable) {
 125         // If a new tab is opened and the URL is editable, assure that
 126         // the user can edit the URL without manually setting the focus
 127         navigator->setFocus();
 128     }
 129 }
 130
 131 void DolphinTabWidget::openNewActivatedTab(const QUrl& primaryUrl, const QUrl& secondaryUrl)
 132 {
 133     openNewTab(primaryUrl, secondaryUrl);
 134     setCurrentIndex(count() - 1);
 135 }
 136
 137 void DolphinTabWidget::openNewTab(const QUrl& primaryUrl, const QUrl& secondaryUrl)
 138 {
 139     QWidget* focusWidget = QApplication::focusWidget();
 140
 141     DolphinTabPage* tabPage = new DolphinTabPage(primaryUrl, secondaryUrl, this);
 142     tabPage->setPlacesSelectorVisible(m_placesSelectorVisible);
 143     connect(tabPage, SIGNAL(activeViewChanged(DolphinViewContainer*)),
 144             this, SIGNAL(activeViewChanged(DolphinViewContainer*)));
 145     connect(tabPage, SIGNAL(activeViewUrlChanged(QUrl)),
 146             this, SLOT(tabUrlChanged(QUrl)));
 147     addTab(tabPage, QIcon::fromTheme(KIO::iconNameForUrl(primaryUrl)), tabName(primaryUrl));
 148
 149     if (focusWidget) {
 150         // The DolphinViewContainer grabbed the keyboard focus. As the tab is opened
 151         // in background, assure that the previous focused widget gets the focus back.
 152         focusWidget->setFocus();
 153     }
 154 }
 155
 156 void DolphinTabWidget::openDirectories(const QList<QUrl>& dirs, bool splitView)
 157 {
 158     Q_ASSERT(dirs.size() > 0);
 159
 160     QList<QUrl>::const_iterator it = dirs.constBegin();
 161     while (it != dirs.constEnd()) {
 162         const QUrl& primaryUrl = *(it++);
 163         if (splitView && (it != dirs.constEnd())) {
 164             const QUrl& secondaryUrl = *(it++);
 165             openNewTab(primaryUrl, secondaryUrl);
 166         } else {
 167             openNewTab(primaryUrl);
 168         }
 169     }
 170 }
 171
 172 void DolphinTabWidget::openFiles(const QList<QUrl>& files, bool splitView)
 173 {
 174     Q_ASSERT(files.size() > 0);
 175
 176     // Get all distinct directories from 'files' and open a tab
 177     // for each directory. If the "split view" option is enabled, two
 178     // directories are shown inside one tab (see openDirectories()).
 179     QList<QUrl> dirs;
 180     foreach (const QUrl& url, files) {
 181         const QUrl dir(url.adjusted(QUrl::RemoveFilename));
 182         if (!dirs.contains(dir)) {
 183             dirs.append(dir);
 184         }
 185     }
 186
 187     const int oldTabCount = count();
 188     openDirectories(dirs, splitView);
 189     const int tabCount = count();
 190
 191     // Select the files. Although the files can be split between several
 192     // tabs, there is no need to split 'files' accordingly, as
 193     // the DolphinView will just ignore invalid selections.
 194     for (int i = oldTabCount; i < tabCount; ++i) {
 195         DolphinTabPage* tabPage = tabPageAt(i);
 196         tabPage->markUrlsAsSelected(files);
 197         tabPage->markUrlAsCurrent(files.first());
 198     }
 199 }
 200
 201 void DolphinTabWidget::closeTab()
 202 {
 203     closeTab(currentIndex());
 204 }
 205
 206 void DolphinTabWidget::closeTab(const int index)
 207 {
 208     Q_ASSERT(index >= 0);
 209     Q_ASSERT(index < count());
 210
 211     if (count() < 2) {
 212         // Never close the last tab.
 213         return;
 214     }
 215
 216     DolphinTabPage* tabPage = tabPageAt(index);
 217     emit rememberClosedTab(tabPage->activeViewContainer()->url(), tabPage->saveState());
 218
 219     removeTab(index);
 220     tabPage->deleteLater();
 221 }
 222
 223 void DolphinTabWidget::activateNextTab()
 224 {
 225     const int index = currentIndex() + 1;
 226     setCurrentIndex(index < count() ? index : 0);
 227 }
 228
 229 void DolphinTabWidget::activatePrevTab()
 230 {
 231     const int index = currentIndex() - 1;
 232     setCurrentIndex(index >= 0 ? index : (count() - 1));
 233 }
 234
 235 void DolphinTabWidget::slotPlacesPanelVisibilityChanged(bool visible)
 236 {
 237     // The places-selector from the URL navigator should only be shown
 238     // if the places dock is invisible
 239     m_placesSelectorVisible = !visible;
 240
 241     const int tabCount = count();
 242     for (int i = 0; i < tabCount; ++i) {
 243         DolphinTabPage* tabPage = tabPageAt(i);
 244         tabPage->setPlacesSelectorVisible(m_placesSelectorVisible);
 245     }
 246 }
 247
 248 void DolphinTabWidget::restoreClosedTab(const QByteArray& state)
 249 {
 250     openNewActivatedTab();
 251     currentTabPage()->restoreState(state);
 252 }
 253
 254 void DolphinTabWidget::detachTab(int index)
 255 {
 256     Q_ASSERT(index >= 0);
 257
 258     const QString separator(QLatin1Char(' '));
 259     QString command = QLatin1String("dolphin");
 260
 261     const DolphinTabPage* tabPage = tabPageAt(index);
 262     command += separator + tabPage->primaryViewContainer()->url().url();
 263     if (tabPage->splitViewEnabled()) {
 264         command += separator + tabPage->secondaryViewContainer()->url().url();
 265         command += separator + QLatin1String("-split");
 266     }
 267
 268     KRun::runCommand(command, this);
 269
 270     closeTab(index);
 271 }
 272
 273 void DolphinTabWidget::openNewActivatedTab(int index)
 274 {
 275     Q_ASSERT(index >= 0);
 276     const DolphinTabPage* tabPage = tabPageAt(index);
 277     openNewActivatedTab(tabPage->activeViewContainer()->url());
 278 }
 279
 280 void DolphinTabWidget::tabDropEvent(int index, QDropEvent* event)
 281 {
 282     if (index >= 0) {
 283         DolphinView* view = tabPageAt(index)->activeViewContainer()->view();
 284         view->dropUrls(view->url(), event);
 285     }
 286 }
 287
 288 void DolphinTabWidget::tabUrlChanged(const QUrl& url)
 289 {
 290     const int index = indexOf(qobject_cast<QWidget*>(sender()));
 291     if (index >= 0) {
 292         tabBar()->setTabText(index, tabName(url));
 293         tabBar()->setTabIcon(index, QIcon::fromTheme(KIO::iconNameForUrl(url)));
 294
 295         // Emit the currentUrlChanged signal if the url of the current tab has been changed.
 296         if (index == currentIndex()) {
 297             emit currentUrlChanged(url);
 298         }
 299     }
 300 }
 301
 302 void DolphinTabWidget::currentTabChanged(int index)
 303 {
 304     DolphinViewContainer* viewContainer = tabPageAt(index)->activeViewContainer();
 305     emit activeViewChanged(viewContainer);
 306     emit currentUrlChanged(viewContainer->url());
 307     viewContainer->view()->setFocus();
 308 }
 309
 310 void DolphinTabWidget::tabInserted(int index)
 311 {
 312     QTabWidget::tabInserted(index);
 313
 314     if (count() > 1) {
 315         tabBar()->show();
 316     }
 317
 318     emit tabCountChanged(count());
 319 }
 320
 321 void DolphinTabWidget::tabRemoved(int index)
 322 {
 323     QTabWidget::tabRemoved(index);
 324
 325     // If only one tab is left, then remove the tab entry so that
 326     // closing the last tab is not possible.
 327     if (count() < 2) {
 328         tabBar()->hide();
 329     }
 330
 331     emit tabCountChanged(count());
 332 }
 333
 334 QString DolphinTabWidget::tabName(const QUrl& url) const
 335 {
 336     QString name;
 337     if (url == QUrl("file:///")) {
 338         name = '/';
 339     } else {
 340         name = url.adjusted(QUrl::StripTrailingSlash).fileName();
 341         if (name.isEmpty()) {
 342             name = url.scheme();
 343         } else {
 344             // Make sure that a '&' inside the directory name is displayed correctly
 345             // and not misinterpreted as a keyboard shortcut in QTabBar::setTabText()
 346             name.replace('&', "&&");
 347         }
 348     }
 349     return name;
 350 }