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