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 #include "dolphin_generalsettings.h"
  26 #include "views/draganddrophelper.h"
  27
  28 #include <QApplication>
  29 #include <KConfigGroup>
  30 #include <kio/global.h>
  31 #include <KRun>
  32
  33 DolphinTabWidget::DolphinTabWidget(QWidget* parent) :
  34     QTabWidget(parent),
  35     m_placesSelectorVisible(true)
  36 {
  37     connect(this, SIGNAL(tabCloseRequested(int)),
  38             this, SLOT(closeTab(int)));
  39     connect(this, SIGNAL(currentChanged(int)),
  40             this, SLOT(currentTabChanged(int)));
  41
  42     DolphinTabBar* tabBar = new DolphinTabBar(this);
  43     connect(tabBar, SIGNAL(openNewActivatedTab(int)),
  44             this, SLOT(openNewActivatedTab(int)));
  45     connect(tabBar, SIGNAL(tabDropEvent(int,QDropEvent*)),
  46             this, SLOT(tabDropEvent(int,QDropEvent*)));
  47     connect(tabBar, SIGNAL(tabDetachRequested(int)),
  48             this, SLOT(detachTab(int)));
  49     tabBar->hide();
  50
  51     setTabBar(tabBar);
  52     setDocumentMode(true);
  53     setElideMode(Qt::ElideRight);
  54     setUsesScrollButtons(true);
  55 }
  56
  57 DolphinTabPage* DolphinTabWidget::currentTabPage() const
  58 {
  59     return tabPageAt(currentIndex());
  60 }
  61
  62 DolphinTabPage* DolphinTabWidget::tabPageAt(const int index) const
  63 {
  64     return static_cast<DolphinTabPage*>(widget(index));
  65 }
  66
  67 void DolphinTabWidget::saveProperties(KConfigGroup& group) const
  68 {
  69     const int tabCount = count();
  70     group.writeEntry("Tab Count", tabCount);
  71     group.writeEntry("Active Tab Index", currentIndex());
  72
  73     for (int i = 0; i < tabCount; ++i) {
  74         const DolphinTabPage* tabPage = tabPageAt(i);
  75         group.writeEntry("Tab Data " % QString::number(i), tabPage->saveState());
  76     }
  77 }
  78
  79 void DolphinTabWidget::readProperties(const KConfigGroup& group)
  80 {
  81     const int tabCount = group.readEntry("Tab Count", 0);
  82     for (int i = 0; i < tabCount; ++i) {
  83         if (i >= count()) {
  84             openNewActivatedTab();
  85         }
  86         if (group.hasKey("Tab Data " % QString::number(i))) {
  87             // Tab state created with Dolphin > 4.14.x
  88             const QByteArray state = group.readEntry("Tab Data " % QString::number(i), QByteArray());
  89             tabPageAt(i)->restoreState(state);
  90         } else {
  91             // Tab state created with Dolphin <= 4.14.x
  92             const QByteArray state = group.readEntry("Tab " % QString::number(i), QByteArray());
  93             tabPageAt(i)->restoreStateV1(state);
  94         }
  95     }
  96
  97     const int index = group.readEntry("Active Tab Index", 0);
  98     setCurrentIndex(index);
  99 }
 100
 101 void DolphinTabWidget::refreshViews()
 102 {
 103     const int tabCount = count();
 104     for (int i = 0; i < tabCount; ++i) {
 105         tabPageAt(i)->refreshViews();
 106     }
 107 }
 108
 109 void DolphinTabWidget::openNewActivatedTab()
 110 {
 111     const DolphinViewContainer* oldActiveViewContainer = currentTabPage()->activeViewContainer();
 112     Q_ASSERT(oldActiveViewContainer);
 113
 114     const bool isUrlEditable = oldActiveViewContainer->urlNavigator()->isUrlEditable();
 115
 116     openNewActivatedTab(oldActiveViewContainer->url());
 117
 118     DolphinViewContainer* newActiveViewContainer = currentTabPage()->activeViewContainer();
 119     Q_ASSERT(newActiveViewContainer);
 120
 121     // The URL navigator of the new tab should have the same editable state
 122     // as the current tab
 123     KUrlNavigator* navigator = newActiveViewContainer->urlNavigator();
 124     navigator->setUrlEditable(isUrlEditable);
 125
 126     if (isUrlEditable) {
 127         // If a new tab is opened and the URL is editable, assure that
 128         // the user can edit the URL without manually setting the focus
 129         navigator->setFocus();
 130     }
 131 }
 132
 133 void DolphinTabWidget::openNewActivatedTab(const KUrl& primaryUrl, const KUrl& secondaryUrl)
 134 {
 135     openNewTab(primaryUrl, secondaryUrl);
 136     setCurrentIndex(count() - 1);
 137 }
 138
 139 void DolphinTabWidget::openNewTab(const KUrl& primaryUrl, const KUrl& secondaryUrl)
 140 {
 141     QWidget* focusWidget = QApplication::focusWidget();
 142
 143     DolphinTabPage* tabPage = new DolphinTabPage(primaryUrl, secondaryUrl, this);
 144     tabPage->setPlacesSelectorVisible(m_placesSelectorVisible);
 145     connect(tabPage, SIGNAL(activeViewChanged(DolphinViewContainer*)),
 146             this, SIGNAL(activeViewChanged(DolphinViewContainer*)));
 147     connect(tabPage, SIGNAL(activeViewUrlChanged(KUrl)),
 148             this, SLOT(tabUrlChanged(KUrl)));
 149     addTab(tabPage, QIcon::fromTheme(KIO::iconNameForUrl(primaryUrl)), tabName(primaryUrl));
 150
 151     if (focusWidget) {
 152         // The DolphinViewContainer grabbed the keyboard focus. As the tab is opened
 153         // in background, assure that the previous focused widget gets the focus back.
 154         focusWidget->setFocus();
 155     }
 156 }
 157
 158 void DolphinTabWidget::openDirectories(const QList<KUrl>& dirs)
 159 {
 160     const bool hasSplitView = GeneralSettings::splitView();
 161
 162     // Open each directory inside a new tab. If the "split view" option has been enabled,
 163     // always show two directories within one tab.
 164     QList<KUrl>::const_iterator it = dirs.constBegin();
 165     while (it != dirs.constEnd()) {
 166         const KUrl& primaryUrl = *(it++);
 167         if (hasSplitView && (it != dirs.constEnd())) {
 168             const KUrl& secondaryUrl = *(it++);
 169             openNewTab(primaryUrl, secondaryUrl);
 170         } else {
 171             openNewTab(primaryUrl);
 172         }
 173     }
 174 }
 175
 176 void DolphinTabWidget::openFiles(const QList<KUrl>& files)
 177 {
 178     if (files.isEmpty()) {
 179         return;
 180     }
 181
 182     // Get all distinct directories from 'files' and open a tab
 183     // for each directory. If the "split view" option is enabled, two
 184     // directories are shown inside one tab (see openDirectories()).
 185     QList<KUrl> dirs;
 186     foreach (const KUrl& url, files) {
 187         const KUrl dir(url.directory());
 188         if (!dirs.contains(dir)) {
 189             dirs.append(dir);
 190         }
 191     }
 192
 193     const int oldTabCount = count();
 194     openDirectories(dirs);
 195     const int tabCount = count();
 196
 197     // Select the files. Although the files can be split between several
 198     // tabs, there is no need to split 'files' accordingly, as
 199     // the DolphinView will just ignore invalid selections.
 200     for (int i = oldTabCount; i < tabCount; ++i) {
 201         DolphinTabPage* tabPage = tabPageAt(i);
 202         tabPage->markUrlsAsSelected(files);
 203         tabPage->markUrlAsCurrent(files.first());
 204     }
 205 }
 206
 207 void DolphinTabWidget::closeTab()
 208 {
 209     closeTab(currentIndex());
 210 }
 211
 212 void DolphinTabWidget::closeTab(const int index)
 213 {
 214     Q_ASSERT(index >= 0);
 215     Q_ASSERT(index < count());
 216
 217     if (count() < 2) {
 218         // Never close the last tab.
 219         return;
 220     }
 221
 222     DolphinTabPage* tabPage = tabPageAt(index);
 223     emit rememberClosedTab(tabPage->activeViewContainer()->url(), tabPage->saveState());
 224
 225     removeTab(index);
 226     tabPage->deleteLater();
 227 }
 228
 229 void DolphinTabWidget::activateNextTab()
 230 {
 231     const int index = currentIndex() + 1;
 232     setCurrentIndex(index < count() ? index : 0);
 233 }
 234
 235 void DolphinTabWidget::activatePrevTab()
 236 {
 237     const int index = currentIndex() - 1;
 238     setCurrentIndex(index >= 0 ? index : (count() - 1));
 239 }
 240
 241 void DolphinTabWidget::slotPlacesPanelVisibilityChanged(bool visible)
 242 {
 243     // The places-selector from the URL navigator should only be shown
 244     // if the places dock is invisible
 245     m_placesSelectorVisible = !visible;
 246
 247     const int tabCount = count();
 248     for (int i = 0; i < tabCount; ++i) {
 249         DolphinTabPage* tabPage = tabPageAt(i);
 250         tabPage->setPlacesSelectorVisible(m_placesSelectorVisible);
 251     }
 252 }
 253
 254 void DolphinTabWidget::restoreClosedTab(const QByteArray& state)
 255 {
 256     openNewActivatedTab();
 257     currentTabPage()->restoreState(state);
 258 }
 259
 260 void DolphinTabWidget::detachTab(int index)
 261 {
 262     Q_ASSERT(index >= 0);
 263
 264     const QString separator(QLatin1Char(' '));
 265     QString command = QLatin1String("dolphin");
 266
 267     const DolphinTabPage* tabPage = tabPageAt(index);
 268     command += separator + tabPage->primaryViewContainer()->url().url();
 269     if (tabPage->splitViewEnabled()) {
 270         command += separator + tabPage->secondaryViewContainer()->url().url();
 271         command += separator + QLatin1String("-split");
 272     }
 273
 274     KRun::runCommand(command, this);
 275
 276     closeTab(index);
 277 }
 278
 279 void DolphinTabWidget::openNewActivatedTab(int index)
 280 {
 281     Q_ASSERT(index >= 0);
 282     const DolphinTabPage* tabPage = tabPageAt(index);
 283     openNewActivatedTab(tabPage->activeViewContainer()->url());
 284 }
 285
 286 void DolphinTabWidget::tabDropEvent(int index, QDropEvent* event)
 287 {
 288     if (index >= 0) {
 289         const DolphinView* view = tabPageAt(index)->activeViewContainer()->view();
 290
 291         QString error;
 292         DragAndDropHelper::dropUrls(view->rootItem(), view->url(), event, error);
 293         if (!error.isEmpty()) {
 294             currentTabPage()->activeViewContainer()->showMessage(error, DolphinViewContainer::Error);
 295         }
 296     }
 297 }
 298
 299 void DolphinTabWidget::tabUrlChanged(const KUrl& url)
 300 {
 301     const int index = indexOf(qobject_cast<QWidget*>(sender()));
 302     if (index >= 0) {
 303         tabBar()->setTabText(index, tabName(url));
 304         tabBar()->setTabIcon(index, QIcon::fromTheme(KIO::iconNameForUrl(url)));
 305
 306         // Emit the currentUrlChanged signal if the url of the current tab has been changed.
 307         if (index == currentIndex()) {
 308             emit currentUrlChanged(url);
 309         }
 310     }
 311 }
 312
 313 void DolphinTabWidget::currentTabChanged(int index)
 314 {
 315     DolphinViewContainer* viewContainer = tabPageAt(index)->activeViewContainer();
 316     emit activeViewChanged(viewContainer);
 317     emit currentUrlChanged(viewContainer->url());
 318     viewContainer->view()->setFocus();
 319 }
 320
 321 void DolphinTabWidget::tabInserted(int index)
 322 {
 323     QTabWidget::tabInserted(index);
 324
 325     if (count() > 1) {
 326         tabBar()->show();
 327     }
 328
 329     emit tabCountChanged(count());
 330 }
 331
 332 void DolphinTabWidget::tabRemoved(int index)
 333 {
 334     QTabWidget::tabRemoved(index);
 335
 336     // If only one tab is left, then remove the tab entry so that
 337     // closing the last tab is not possible.
 338     if (count() < 2) {
 339         tabBar()->hide();
 340     }
 341
 342     emit tabCountChanged(count());
 343 }
 344
 345 QString DolphinTabWidget::tabName(const KUrl& url) const
 346 {
 347     QString name;
 348     if (url.equals(KUrl("file:///"))) {
 349         name = '/';
 350     } else {
 351         name = url.fileName();
 352         if (name.isEmpty()) {
 353             name = url.protocol();
 354         } else {
 355             // Make sure that a '&' inside the directory name is displayed correctly
 356             // and not misinterpreted as a keyboard shortcut in QTabBar::setTabText()
 357             name.replace('&', "&&");
 358         }
 359     }
 360     return name;
 361 }