src/dolphinviewcontainer.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2007 by Peter Penz <peter.penz@gmx.at>                  *
   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 "dolphinviewcontainer.h"
  21 #include <kprotocolmanager.h>
  22
  23 #include <QtGui/QApplication>
  24 #include <QtGui/QClipboard>
  25 #include <QtGui/QKeyEvent>
  26 #include <QtGui/QItemSelection>
  27 #include <QtGui/QBoxLayout>
  28 #include <QtCore/QTimer>
  29 #include <QtGui/QScrollBar>
  30
  31 #include <kfileitemdelegate.h>
  32 #include <kfileplacesmodel.h>
  33 #include <kglobalsettings.h>
  34 #include <klocale.h>
  35 #include <kiconeffect.h>
  36 #include <kio/netaccess.h>
  37 #include <kio/previewjob.h>
  38 #include <kmenu.h>
  39 #include <kmimetyperesolver.h>
  40 #include <knewmenu.h>
  41 #include <konqmimedata.h>
  42 #include <kfileitemlistproperties.h>
  43 #include <konq_operations.h>
  44 #include <kshell.h>
  45 #include <kurl.h>
  46 #include <kurlcombobox.h>
  47 #include <kurlnavigator.h>
  48 #include <krun.h>
  49
  50 #include "dolphinmodel.h"
  51 #include "dolphincolumnview.h"
  52 #include "dolphincontroller.h"
  53 #include "dolphinmainwindow.h"
  54 #include "dolphindirlister.h"
  55 #include "dolphinsortfilterproxymodel.h"
  56 #include "dolphindetailsview.h"
  57 #include "dolphiniconsview.h"
  58 #include "draganddrophelper.h"
  59 #include "filterbar.h"
  60 #include "statusbar/dolphinstatusbar.h"
  61 #include "viewproperties.h"
  62 #include "settings/dolphinsettings.h"
  63 #include "dolphin_generalsettings.h"
  64
  65 DolphinViewContainer::DolphinViewContainer(const KUrl& url, QWidget* parent) :
  66     QWidget(parent),
  67     m_isFolderWritable(false),
  68     m_topLayout(0),
  69     m_urlNavigator(0),
  70     m_view(0),
  71     m_filterBar(0),
  72     m_statusBar(0),
  73     m_statusBarTimer(0),
  74     m_dirLister(0),
  75     m_proxyModel(0)
  76 {
  77     hide();
  78
  79     m_topLayout = new QVBoxLayout(this);
  80     m_topLayout->setSpacing(0);
  81     m_topLayout->setMargin(0);
  82
  83     m_urlNavigator = new KUrlNavigator(DolphinSettings::instance().placesModel(), url, this);
  84     connect(m_urlNavigator, SIGNAL(urlsDropped(const KUrl&, QDropEvent*)),
  85             this, SLOT(dropUrls(const KUrl&, QDropEvent*)));
  86     connect(m_urlNavigator, SIGNAL(activated()),
  87             this, SLOT(activate()));
  88     //connect(m_urlNavigator, SIGNAL(tabRequested(const KUrl&)),
  89     //        this,
  90     connect(m_urlNavigator->editor(), SIGNAL(completionModeChanged(KGlobalSettings::Completion)),
  91             this, SLOT(saveUrlCompletionMode(KGlobalSettings::Completion)));
  92
  93     const GeneralSettings* settings = DolphinSettings::instance().generalSettings();
  94     m_urlNavigator->setUrlEditable(settings->editableUrl());
  95     m_urlNavigator->setShowFullPath(settings->showFullPath());
  96     m_urlNavigator->setHomeUrl(KUrl(settings->homeUrl()));
  97     KUrlComboBox* editor = m_urlNavigator->editor();
  98     editor->setCompletionMode(KGlobalSettings::Completion(settings->urlCompletionMode()));
  99
 100     m_dirLister = new DolphinDirLister();
 101     m_dirLister->setAutoUpdate(true);
 102     m_dirLister->setMainWindow(window());
 103     m_dirLister->setDelayedMimeTypes(true);
 104
 105     m_dolphinModel = new DolphinModel(this);
 106     m_dolphinModel->setDirLister(m_dirLister);
 107     m_dolphinModel->setDropsAllowed(DolphinModel::DropOnDirectory);
 108
 109     m_proxyModel = new DolphinSortFilterProxyModel(this);
 110     m_proxyModel->setSourceModel(m_dolphinModel);
 111     m_proxyModel->setFilterCaseSensitivity(Qt::CaseInsensitive);
 112
 113     connect(m_dirLister, SIGNAL(started(KUrl)),
 114             this, SLOT(initializeProgress()));
 115     connect(m_dirLister, SIGNAL(clear()),
 116             this, SLOT(delayedStatusBarUpdate()));
 117     connect(m_dirLister, SIGNAL(percent(int)),
 118             this, SLOT(updateProgress(int)));
 119     connect(m_dirLister, SIGNAL(itemsDeleted(const KFileItemList&)),
 120             this, SLOT(delayedStatusBarUpdate()));
 121     connect(m_dirLister, SIGNAL(completed()),
 122             this, SLOT(slotDirListerCompleted()));
 123     connect(m_dirLister, SIGNAL(infoMessage(const QString&)),
 124             this, SLOT(showInfoMessage(const QString&)));
 125     connect(m_dirLister, SIGNAL(errorMessage(const QString&)),
 126             this, SLOT(showErrorMessage(const QString&)));
 127     connect(m_dirLister, SIGNAL(urlIsFileError(const KUrl&)),
 128             this, SLOT(openFile(const KUrl&)));
 129
 130     m_view = new DolphinView(this, url, m_proxyModel);
 131     connect(m_view, SIGNAL(urlChanged(const KUrl&)),
 132             m_urlNavigator, SLOT(setUrl(const KUrl&)));
 133     connect(m_view, SIGNAL(requestItemInfo(KFileItem)),
 134             this, SLOT(showItemInfo(KFileItem)));
 135     connect(m_view, SIGNAL(errorMessage(const QString&)),
 136             this, SLOT(showErrorMessage(const QString&)));
 137     connect(m_view, SIGNAL(infoMessage(const QString&)),
 138             this, SLOT(showInfoMessage(const QString&)));
 139     connect(m_view, SIGNAL(operationCompletedMessage(const QString&)),
 140             this, SLOT(showOperationCompletedMessage(const QString&)));
 141     connect(m_view, SIGNAL(itemTriggered(KFileItem)),
 142             this, SLOT(slotItemTriggered(KFileItem)));
 143     connect(m_view, SIGNAL(redirection(KUrl, KUrl)),
 144             this, SLOT(redirect(KUrl, KUrl)));
 145     connect(m_view, SIGNAL(selectionChanged(const KFileItemList&)),
 146             this, SLOT(delayedStatusBarUpdate()));
 147
 148     connect(m_urlNavigator, SIGNAL(urlChanged(const KUrl&)),
 149             this, SLOT(slotUrlNavigatorLocationChanged(const KUrl&)));
 150     connect(m_urlNavigator, SIGNAL(urlAboutToBeChanged(const KUrl&)),
 151             this, SLOT(saveViewState()));
 152     connect(m_urlNavigator, SIGNAL(historyChanged()),
 153             this, SLOT(slotHistoryChanged()));
 154
 155     // initialize status bar
 156     m_statusBar = new DolphinStatusBar(this, m_view);
 157     m_statusBarTimer = new QTimer(this);
 158     m_statusBarTimer->setSingleShot(true);
 159     m_statusBarTimer->setInterval(300);
 160     connect(m_statusBarTimer, SIGNAL(timeout()),
 161             this, SLOT(updateStatusBar()));
 162
 163     KIO::FileUndoManager* undoManager = KIO::FileUndoManager::self();
 164     connect(undoManager, SIGNAL(jobRecordingFinished(CommandType)),
 165             this, SLOT(delayedStatusBarUpdate()));
 166
 167     // initialize filter bar
 168     m_filterBar = new FilterBar(this);
 169     m_filterBar->setVisible(settings->filterBar());
 170     connect(m_filterBar, SIGNAL(filterChanged(const QString&)),
 171             this, SLOT(setNameFilter(const QString&)));
 172     connect(m_filterBar, SIGNAL(closeRequest()),
 173             this, SLOT(closeFilterBar()));
 174     connect(m_view, SIGNAL(urlChanged(const KUrl&)),
 175             m_filterBar, SLOT(clear()));
 176
 177     m_topLayout->addWidget(m_urlNavigator);
 178     m_topLayout->addWidget(m_view);
 179     m_topLayout->addWidget(m_filterBar);
 180     m_topLayout->addWidget(m_statusBar);
 181 }
 182
 183 DolphinViewContainer::~DolphinViewContainer()
 184 {
 185     m_dirLister->disconnect();
 186
 187     delete m_proxyModel;
 188     m_proxyModel = 0;
 189     delete m_dolphinModel;
 190     m_dolphinModel = 0;
 191     m_dirLister = 0; // deleted by m_dolphinModel
 192 }
 193
 194 KUrl DolphinViewContainer::url() const
 195 {
 196     return m_urlNavigator->locationUrl();
 197 }
 198
 199 void DolphinViewContainer::setActive(bool active)
 200 {
 201     m_urlNavigator->setActive(active);
 202     m_view->setActive(active);
 203     if (active) {
 204         emit writeStateChanged(m_isFolderWritable);
 205     }
 206 }
 207
 208 bool DolphinViewContainer::isActive() const
 209 {
 210     Q_ASSERT(m_view->isActive() == m_urlNavigator->isActive());
 211     return m_view->isActive();
 212 }
 213
 214 void DolphinViewContainer::refresh()
 215 {
 216     m_view->refresh();
 217     m_statusBar->refresh();
 218 }
 219
 220 bool DolphinViewContainer::isFilterBarVisible() const
 221 {
 222     return m_filterBar->isVisible();
 223 }
 224
 225 void DolphinViewContainer::setUrl(const KUrl& newUrl)
 226 {
 227     if (newUrl != m_urlNavigator->locationUrl()) {
 228         m_urlNavigator->setLocationUrl(newUrl);
 229         // Temporary disable the 'File'->'Create New...' menu until
 230         // the write permissions can be checked in a fast way at
 231         // DolphinViewContainer::slotDirListerCompleted().
 232         m_isFolderWritable = false;
 233         if (isActive()) {
 234             emit writeStateChanged(false);
 235         }
 236     }
 237 }
 238
 239 void DolphinViewContainer::showFilterBar(bool show)
 240 {
 241     Q_ASSERT(m_filterBar != 0);
 242     if (show) {
 243         m_filterBar->show();
 244     } else {
 245         closeFilterBar();
 246     }
 247 }
 248
 249 void DolphinViewContainer::delayedStatusBarUpdate()
 250 {
 251     // Invoke updateStatusBar() with a small delay. This assures that
 252     // when a lot of delayedStatusBarUpdates() are done in a short time,
 253     // no bottleneck is given.
 254     m_statusBarTimer->start();
 255 }
 256
 257 void DolphinViewContainer::updateStatusBar()
 258 {
 259     // As the item count information is less important
 260     // in comparison with other messages, it should only
 261     // be shown if:
 262     // - the status bar is empty or
 263     // - shows already the item count information or
 264     // - shows only a not very important information
 265     // - if any progress is given don't show the item count info at all
 266     const QString msg = m_statusBar->message();
 267     const bool updateStatusBarMsg = (msg.isEmpty()
 268                                      || (msg == m_statusBar->defaultText())
 269                                      || (m_statusBar->type() == DolphinStatusBar::Information))
 270                                     && (m_statusBar->progress() == 100);
 271
 272     const QString text = m_view->statusBarText();
 273     m_statusBar->setDefaultText(text);
 274
 275     if (updateStatusBarMsg) {
 276         m_statusBar->setMessage(text, DolphinStatusBar::Default);
 277     }
 278 }
 279
 280 void DolphinViewContainer::initializeProgress()
 281 {
 282     if (url().protocol() == "nepomuksearch") {
 283         // The Nepomuk IO-slave does not provide any progress information. Give
 284         // an immediate hint to the user that a searching is done:
 285         m_statusBar->setProgressText(i18nc("@info", "Searching..."));
 286         m_statusBar->setProgress(-1);
 287     }
 288  }
 289
 290 void DolphinViewContainer::updateProgress(int percent)
 291 {
 292     if (m_statusBar->progressText().isEmpty()) {
 293         m_statusBar->setProgressText(i18nc("@info:progress", "Loading folder..."));
 294     }
 295     m_statusBar->setProgress(percent);
 296 }
 297
 298 void DolphinViewContainer::slotDirListerCompleted()
 299 {
 300     if (!m_statusBar->progressText().isEmpty()) {
 301         m_statusBar->setProgressText(QString());
 302         m_statusBar->setProgress(100);
 303     }
 304
 305     if ((url().protocol() == "nepomuksearch") && (m_dirLister->items().count() == 0)) {
 306         // The dir lister has been completed on a Nepomuk-URI and no items have been found. Instead
 307         // of showing the default status bar information ("0 items") a more helpful information is given:
 308         m_statusBar->setMessage(i18nc("@info:status", "No items found."), DolphinStatusBar::Information);
 309     } else {
 310         updateStatusBar();
 311     }
 312     QMetaObject::invokeMethod(this, "restoreViewState", Qt::QueuedConnection);
 313
 314     // Enable the 'File'->'Create New...' menu only if the directory
 315     // supports writing.
 316     KFileItem item = m_dirLister->rootItem();
 317     if (item.isNull()) {
 318         // it is unclear whether writing is supported
 319         m_isFolderWritable = true;
 320     } else {
 321         KFileItemListProperties capabilities(KFileItemList() << item);
 322         m_isFolderWritable = capabilities.supportsWriting();
 323     }
 324
 325     if (isActive()) {
 326         emit writeStateChanged(m_isFolderWritable);
 327     }
 328 }
 329
 330 void DolphinViewContainer::showItemInfo(const KFileItem& item)
 331 {
 332     if (item.isNull()) {
 333         // Only clear the status bar if unimportant messages are shown.
 334         // This prevents that information- or error-messages get hidden
 335         // by moving the mouse above the viewport or when closing the
 336         // context menu.
 337         if (m_statusBar->type() == DolphinStatusBar::Default) {
 338             m_statusBar->clear();
 339         }
 340     } else {
 341         m_statusBar->setMessage(item.getStatusBarInfo(), DolphinStatusBar::Default);
 342     }
 343 }
 344
 345 void DolphinViewContainer::showInfoMessage(const QString& msg)
 346 {
 347     m_statusBar->setMessage(msg, DolphinStatusBar::Information);
 348 }
 349
 350 void DolphinViewContainer::showErrorMessage(const QString& msg)
 351 {
 352     m_statusBar->setMessage(msg, DolphinStatusBar::Error);
 353 }
 354
 355 void DolphinViewContainer::showOperationCompletedMessage(const QString& msg)
 356 {
 357     m_statusBar->setMessage(msg, DolphinStatusBar::OperationCompleted);
 358 }
 359
 360 void DolphinViewContainer::closeFilterBar()
 361 {
 362     m_filterBar->hide();
 363     m_filterBar->clear();
 364     m_view->setFocus();
 365     emit showFilterBarChanged(false);
 366 }
 367
 368 void DolphinViewContainer::setNameFilter(const QString& nameFilter)
 369 {
 370     m_view->setNameFilter(nameFilter);
 371     delayedStatusBarUpdate();
 372 }
 373
 374 void DolphinViewContainer::restoreViewState()
 375 {
 376     QByteArray locationState = m_urlNavigator->locationState();
 377     QDataStream stream(&locationState, QIODevice::ReadOnly);
 378     m_view->restoreState(stream);
 379 }
 380
 381 void DolphinViewContainer::activate()
 382 {
 383     setActive(true);
 384 }
 385
 386 void DolphinViewContainer::saveViewState()
 387 {
 388     QByteArray locationState;
 389     QDataStream stream(&locationState, QIODevice::WriteOnly);
 390     m_view->saveState(stream);
 391     m_urlNavigator->saveLocationState(locationState);
 392 }
 393
 394 void DolphinViewContainer::slotUrlNavigatorLocationChanged(const KUrl& url)
 395 {
 396     if (KProtocolManager::supportsListing(url)) {
 397         m_view->setUrl(url);
 398         if (isActive()) {
 399             // When an URL has been entered, the view should get the focus.
 400             // The focus must be requested asynchronously, as changing the URL might create
 401             // a new view widget. Using QTimer::singleShow() works reliable, however
 402             // QMetaObject::invokeMethod() with a queued connection does not work, which might
 403             // indicate that we should pass a hint to DolphinView::updateView()
 404             // regarding the focus instead. To test: Enter an URL and press CTRL+Enter.
 405             // Expected result: The view should get the focus.
 406             QTimer::singleShot(0, this, SLOT(requestFocus()));
 407         }
 408     } else if (KProtocolManager::isSourceProtocol(url)) {
 409         QString app = "konqueror";
 410         if (url.protocol().startsWith(QLatin1String("http"))) {
 411             showErrorMessage(i18nc("@info:status",
 412                                    "Dolphin does not support web pages, the web browser has been launched"));
 413             const KConfigGroup config(KSharedConfig::openConfig("kdeglobals"), "General");
 414             const QString browser = config.readEntry("BrowserApplication");
 415             if (!browser.isEmpty()) {
 416                 app = browser;
 417                 if (app.startsWith('!')) {
 418                     // a literal command has been configured, remove the '!' prefix
 419                     app = app.mid(1);
 420                 }
 421             }
 422         } else {
 423             showErrorMessage(i18nc("@info:status",
 424                                    "Protocol not supported by Dolphin, Konqueror has been launched"));
 425         }
 426
 427         const QString secureUrl = KShell::quoteArg(url.pathOrUrl());
 428         const QString command = app + ' ' + secureUrl;
 429         KRun::runCommand(command, app, app, this);
 430     } else {
 431         showErrorMessage(i18nc("@info:status", "Invalid protocol"));
 432     }
 433 }
 434
 435 void DolphinViewContainer::dropUrls(const KUrl& destination, QDropEvent* event)
 436 {
 437     DragAndDropHelper::instance().dropUrls(KFileItem(), destination, event, this);
 438 }
 439
 440 void DolphinViewContainer::redirect(const KUrl& oldUrl, const KUrl& newUrl)
 441 {
 442     Q_UNUSED(oldUrl);
 443     const bool block = m_urlNavigator->signalsBlocked();
 444     m_urlNavigator->blockSignals(true);
 445     m_urlNavigator->setLocationUrl(newUrl);
 446     m_urlNavigator->blockSignals(block);
 447 }
 448
 449 void DolphinViewContainer::requestFocus()
 450 {
 451     m_view->setFocus();
 452 }
 453
 454 void DolphinViewContainer::saveUrlCompletionMode(KGlobalSettings::Completion completion)
 455 {
 456     DolphinSettings& settings = DolphinSettings::instance();
 457     settings.generalSettings()->setUrlCompletionMode(completion);
 458     settings.save();
 459 }
 460
 461 void DolphinViewContainer::slotHistoryChanged()
 462 {
 463     const int index = m_urlNavigator->historyIndex();
 464     if (index > 0) {
 465         // The "Go Forward" action is enabled. Try to mark
 466         // the previous directory as active item:
 467         const KUrl url = m_urlNavigator->locationUrl(index - 1);
 468         m_view->activateItem(url);
 469     }
 470 }
 471
 472 void DolphinViewContainer::slotItemTriggered(const KFileItem& item)
 473 {
 474     KUrl url = item.targetUrl();
 475
 476     if (item.isDir()) {
 477         m_view->setUrl(url);
 478         return;
 479     }
 480
 481     const GeneralSettings* settings = DolphinSettings::instance().generalSettings();
 482     const bool browseThroughArchives = settings->browseThroughArchives();
 483     if (browseThroughArchives && item.isFile() && url.isLocalFile()) {
 484         // Generic mechanism for redirecting to tar:/<path>/ when clicking on a tar file,
 485         // zip:/<path>/ when clicking on a zip file, etc.
 486         // The .protocol file specifies the mimetype that the kioslave handles.
 487         // Note that we don't use mimetype inheritance since we don't want to
 488         // open OpenDocument files as zip folders...
 489         const QString protocol = KProtocolManager::protocolForArchiveMimetype(item.mimetype());
 490         if (!protocol.isEmpty()) {
 491             url.setProtocol(protocol);
 492             m_view->setUrl(url);
 493             return;
 494         }
 495     }
 496
 497     item.run();
 498 }
 499
 500 void DolphinViewContainer::openFile(const KUrl& url)
 501 {
 502     // Using m_dolphinModel for getting the file item instance is not possible
 503     // here: openFile() is triggered by an error of the directory lister
 504     // job, so the file item must be received "manually".
 505     const KFileItem item(KFileItem::Unknown, KFileItem::Unknown, url);
 506     slotItemTriggered(item);
 507 }
 508
 509 #include "dolphinviewcontainer.moc"