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