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