apps/dolphin/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 <konq_fileitemcapabilities.h>
  43 #include <konq_operations.h>
  44 #include <kurl.h>
  45 #include <krun.h>
  46
  47 #include "dolphinmodel.h"
  48 #include "dolphincolumnview.h"
  49 #include "dolphincontroller.h"
  50 #include "dolphinstatusbar.h"
  51 #include "dolphinmainwindow.h"
  52 #include "dolphindirlister.h"
  53 #include "dolphinsortfilterproxymodel.h"
  54 #include "dolphindetailsview.h"
  55 #include "dolphiniconsview.h"
  56 #include "dolphincontextmenu.h"
  57 #include "draganddrophelper.h"
  58 #include "filterbar.h"
  59 #include "kurlnavigator.h"
  60 #include "viewproperties.h"
  61 #include "settings/dolphinsettings.h"
  62 #include "dolphin_generalsettings.h"
  63
  64 DolphinViewContainer::DolphinViewContainer(DolphinMainWindow* mainWindow,
  65                                            QWidget* parent,
  66                                            const KUrl& url) :
  67     QWidget(parent),
  68     m_showProgress(false),
  69     m_mainWindow(mainWindow),
  70     m_topLayout(0),
  71     m_urlNavigator(0),
  72     m_view(0),
  73     m_filterBar(0),
  74     m_statusBar(0),
  75     m_dirLister(0),
  76     m_proxyModel(0)
  77 {
  78     hide();
  79
  80     m_topLayout = new QVBoxLayout(this);
  81     m_topLayout->setSpacing(0);
  82     m_topLayout->setMargin(0);
  83
  84     m_urlNavigator = new KUrlNavigator(DolphinSettings::instance().placesModel(), url, this);
  85     connect(m_urlNavigator, SIGNAL(urlsDropped(const KUrl&, QDropEvent*)),
  86             this, SLOT(dropUrls(const KUrl&, QDropEvent*)));
  87     connect(m_urlNavigator, SIGNAL(activated()),
  88             this, SLOT(activate()));
  89
  90     const GeneralSettings* settings = DolphinSettings::instance().generalSettings();
  91     m_urlNavigator->setUrlEditable(settings->editableUrl());
  92     m_urlNavigator->setShowFullPath(settings->showFullPath());
  93     m_urlNavigator->setHomeUrl(settings->homeUrl());
  94
  95     m_dirLister = new DolphinDirLister();
  96     m_dirLister->setAutoUpdate(true);
  97     m_dirLister->setMainWindow(window());
  98     m_dirLister->setDelayedMimeTypes(true);
  99
 100     m_dolphinModel = new DolphinModel(this);
 101     m_dolphinModel->setDirLister(m_dirLister);
 102     m_dolphinModel->setDropsAllowed(DolphinModel::DropOnDirectory);
 103
 104     m_proxyModel = new DolphinSortFilterProxyModel(this);
 105     m_proxyModel->setSourceModel(m_dolphinModel);
 106     m_proxyModel->setFilterCaseSensitivity(Qt::CaseInsensitive);
 107
 108     connect(m_dirLister, SIGNAL(clear()),
 109             this, SLOT(updateStatusBar()));
 110     connect(m_dirLister, SIGNAL(percent(int)),
 111             this, SLOT(updateProgress(int)));
 112     connect(m_dirLister, SIGNAL(deleteItem(const KFileItem&)),
 113             this, SLOT(updateStatusBar()));
 114     connect(m_dirLister, SIGNAL(completed()),
 115             this, SLOT(slotDirListerCompleted()));
 116     connect(m_dirLister, SIGNAL(infoMessage(const QString&)),
 117             this, SLOT(showInfoMessage(const QString&)));
 118     connect(m_dirLister, SIGNAL(errorMessage(const QString&)),
 119             this, SLOT(showErrorMessage(const QString&)));
 120     connect(m_dirLister, SIGNAL(urlIsFileError(const KUrl&)),
 121             this, SLOT(openFile(const KUrl&)));
 122
 123     m_view = new DolphinView(this,
 124                              url,
 125                              m_dirLister,
 126                              m_dolphinModel,
 127                              m_proxyModel);
 128     connect(m_view, SIGNAL(urlChanged(const KUrl&)),
 129             m_urlNavigator, SLOT(setUrl(const KUrl&)));
 130     connect(m_view, SIGNAL(requestContextMenu(KFileItem, const KUrl&)),
 131             this, SLOT(openContextMenu(KFileItem, const KUrl&)));
 132     connect(m_view, SIGNAL(contentsMoved(int, int)),
 133             this, SLOT(saveContentsPos(int, int)));
 134     connect(m_view, SIGNAL(requestItemInfo(KFileItem)),
 135             this, SLOT(showItemInfo(KFileItem)));
 136     connect(m_view, SIGNAL(errorMessage(const QString&)),
 137             this, SLOT(showErrorMessage(const QString&)));
 138     connect(m_view, SIGNAL(infoMessage(const QString&)),
 139             this, SLOT(showInfoMessage(const QString&)));
 140     connect(m_view, SIGNAL(operationCompletedMessage(const QString&)),
 141             this, SLOT(showOperationCompletedMessage(const QString&)));
 142     connect(m_view, SIGNAL(itemTriggered(KFileItem)),
 143             this, SLOT(slotItemTriggered(KFileItem)));
 144     connect(m_view, SIGNAL(startedPathLoading(const KUrl&)),
 145             this, SLOT(saveRootUrl(const KUrl&)));
 146     connect(m_view, SIGNAL(redirection(KUrl, KUrl)),
 147             this, SLOT(redirect(KUrl, KUrl)));
 148
 149     connect(m_urlNavigator, SIGNAL(urlChanged(const KUrl&)),
 150             this, SLOT(restoreView(const KUrl&)));
 151
 152     m_statusBar = new DolphinStatusBar(this, m_view);
 153
 154     m_filterBar = new FilterBar(this);
 155     m_filterBar->setVisible(settings->filterBar());
 156     connect(m_filterBar, SIGNAL(filterChanged(const QString&)),
 157             this, SLOT(setNameFilter(const QString&)));
 158     connect(m_filterBar, SIGNAL(closeRequest()),
 159             this, SLOT(closeFilterBar()));
 160
 161     m_topLayout->addWidget(m_urlNavigator);
 162     m_topLayout->addWidget(m_view);
 163     m_topLayout->addWidget(m_filterBar);
 164     m_topLayout->addWidget(m_statusBar);
 165 }
 166
 167 DolphinViewContainer::~DolphinViewContainer()
 168 {
 169     m_dirLister->disconnect();
 170
 171     delete m_proxyModel;
 172     m_proxyModel = 0;
 173     delete m_dolphinModel;
 174     m_dolphinModel = 0;
 175     m_dirLister = 0; // deleted by m_dolphinModel
 176 }
 177
 178 void DolphinViewContainer::setUrl(const KUrl& newUrl)
 179 {
 180     m_urlNavigator->setUrl(newUrl);
 181     if (newUrl != m_urlNavigator->url()) {
 182         // Temporary disable the 'File'->'Create New...' menu until
 183         // the write permissions can be checked in a fast way at
 184         // DolphinViewContainer::slotDirListerCompleted().
 185         m_mainWindow->newMenu()->menu()->setEnabled(false);
 186     }
 187 }
 188
 189 const KUrl& DolphinViewContainer::url() const
 190 {
 191     return m_urlNavigator->url();
 192 }
 193
 194 void DolphinViewContainer::setActive(bool active)
 195 {
 196     m_urlNavigator->setActive(active);
 197     m_view->setActive(active);
 198 }
 199
 200 bool DolphinViewContainer::isActive() const
 201 {
 202     Q_ASSERT(m_view->isActive() == m_urlNavigator->isActive());
 203     return m_view->isActive();
 204 }
 205
 206 void DolphinViewContainer::refresh()
 207 {
 208     m_view->refresh();
 209     m_statusBar->refresh();
 210 }
 211
 212 bool DolphinViewContainer::isFilterBarVisible() const
 213 {
 214     return m_filterBar->isVisible();
 215 }
 216
 217 void DolphinViewContainer::showFilterBar(bool show)
 218 {
 219     Q_ASSERT(m_filterBar != 0);
 220     if (show) {
 221         m_filterBar->show();
 222     } else {
 223         closeFilterBar();
 224     }
 225 }
 226
 227 bool DolphinViewContainer::isUrlEditable() const
 228 {
 229     return m_urlNavigator->isUrlEditable();
 230 }
 231
 232 void DolphinViewContainer::updateProgress(int percent)
 233 {
 234     if (!m_showProgress) {
 235         // Only show the directory loading progress if the status bar does
 236         // not contain another progress information. This means that
 237         // the directory loading progress information has the lowest priority.
 238         const QString progressText(m_statusBar->progressText());
 239         const QString loadingText(i18nc("@info:progress", "Loading folder..."));
 240         m_showProgress = progressText.isEmpty() || (progressText == loadingText);
 241         if (m_showProgress) {
 242             m_statusBar->setProgressText(loadingText);
 243             m_statusBar->setProgress(0);
 244         }
 245     }
 246
 247     if (m_showProgress) {
 248         m_statusBar->setProgress(percent);
 249     }
 250 }
 251
 252 void DolphinViewContainer::slotDirListerCompleted()
 253 {
 254     if (m_showProgress) {
 255         m_statusBar->setProgressText(QString());
 256         m_statusBar->setProgress(100);
 257         m_showProgress = false;
 258     }
 259
 260     updateStatusBar();
 261     QMetaObject::invokeMethod(this, "restoreContentsPos", Qt::QueuedConnection);
 262
 263     // Enable the 'File'->'Create New...' menu only if the directory
 264     // supports writing.
 265     KMenu* createNew = m_mainWindow->newMenu()->menu();
 266     KFileItem item = m_dirLister->rootItem();
 267     if (item.isNull()) {
 268         // it is unclear whether writing is supported
 269         createNew->setEnabled(true);
 270     } else {
 271         KonqFileItemCapabilities capabilities(KFileItemList() << item);
 272         createNew->setEnabled(capabilities.supportsWriting());
 273     }
 274 }
 275
 276 void DolphinViewContainer::showItemInfo(const KFileItem& item)
 277 {
 278     if (item.isNull()) {
 279         m_statusBar->clear();
 280     } else {
 281         m_statusBar->setMessage(item.getStatusBarInfo(), DolphinStatusBar::Default);
 282     }
 283 }
 284
 285 void DolphinViewContainer::showInfoMessage(const QString& msg)
 286 {
 287     m_statusBar->setMessage(msg, DolphinStatusBar::Information);
 288 }
 289
 290 void DolphinViewContainer::showErrorMessage(const QString& msg)
 291 {
 292     m_statusBar->setMessage(msg, DolphinStatusBar::Error);
 293 }
 294
 295 void DolphinViewContainer::showOperationCompletedMessage(const QString& msg)
 296 {
 297     m_statusBar->setMessage(msg, DolphinStatusBar::OperationCompleted);
 298 }
 299
 300 void DolphinViewContainer::closeFilterBar()
 301 {
 302     m_filterBar->hide();
 303     m_filterBar->clear();
 304     m_view->setFocus();
 305     emit showFilterBarChanged(false);
 306 }
 307
 308 void DolphinViewContainer::updateStatusBar()
 309 {
 310     // As the item count information is less important
 311     // in comparison with other messages, it should only
 312     // be shown if:
 313     // - the status bar is empty or
 314     // - shows already the item count information or
 315     // - shows only a not very important information
 316     // - if any progress is given don't show the item count info at all
 317     const QString msg(m_statusBar->message());
 318     const bool updateStatusBarMsg = (msg.isEmpty() ||
 319                                      (msg == m_statusBar->defaultText()) ||
 320                                      (m_statusBar->type() == DolphinStatusBar::Information)) &&
 321                                     (m_statusBar->progress() == 100);
 322
 323     const QString text(m_view->statusBarText());
 324     m_statusBar->setDefaultText(text);
 325
 326     if (updateStatusBarMsg) {
 327         m_statusBar->setMessage(text, DolphinStatusBar::Default);
 328     }
 329 }
 330
 331 void DolphinViewContainer::setNameFilter(const QString& nameFilter)
 332 {
 333     m_view->setNameFilter(nameFilter);
 334     updateStatusBar();
 335 }
 336
 337 void DolphinViewContainer::openContextMenu(const KFileItem& item,
 338                                            const KUrl& url)
 339 {
 340     DolphinContextMenu contextMenu(m_mainWindow, item, url);
 341     contextMenu.open();
 342 }
 343
 344 void DolphinViewContainer::saveContentsPos(int x, int y)
 345 {
 346     m_urlNavigator->savePosition(x, y);
 347 }
 348
 349 void DolphinViewContainer::restoreContentsPos()
 350 {
 351     if (!url().isEmpty()) {
 352         const QPoint pos = m_urlNavigator->savedPosition();
 353         m_view->setContentsPosition(pos.x(), pos.y());
 354     }
 355 }
 356
 357 void DolphinViewContainer::activate()
 358 {
 359     setActive(true);
 360 }
 361
 362 void DolphinViewContainer::restoreView(const KUrl& url)
 363 {
 364     if (KProtocolManager::supportsListing(url)) {
 365         m_view->updateView(url, m_urlNavigator->savedRootUrl());
 366         if (isActive()) {
 367             // When an URL has been entered, the view should get the focus.
 368             // The focus must be requested asynchronously, as changing the URL might create
 369             // a new view widget. Using QTimer::singleShow() works reliable, however
 370             // QMetaObject::invokeMethod() with a queued connection does not work, which might
 371             // indicate that we should pass a hint to DolphinView::updateView()
 372             // regarding the focus instead. To test: Enter an URL and press CTRL+Enter.
 373             // Expected result: The view should get the focus.
 374             QTimer::singleShot(0, this, SLOT(requestFocus()));
 375         }
 376     } else if (KProtocolManager::isSourceProtocol(url)) {
 377         QString app = "konqueror";
 378         if (url.protocol().startsWith(QLatin1String("http"))) {
 379             showErrorMessage(i18nc("@info:status",
 380                                    "Dolphin does not support web pages, the web browser has been launched"));
 381             const KConfigGroup config(KSharedConfig::openConfig("kdeglobals"), "General");
 382             const QString browser = config.readEntry("BrowserApplication");
 383             if (!browser.isEmpty()) {
 384                 app = browser;
 385             }
 386         } else {
 387             showErrorMessage(i18nc("@info:status",
 388                                    "Protocol not supported by Dolphin, Konqueror has been launched"));
 389         }
 390         const QString command = app + ' ' + url.pathOrUrl();
 391         KRun::runCommand(command, app, app, this);
 392     } else {
 393         showErrorMessage(i18nc("@info:status", "Invalid protocol"));
 394     }
 395 }
 396
 397 void DolphinViewContainer::saveRootUrl(const KUrl& url)
 398 {
 399     Q_UNUSED(url);
 400     m_urlNavigator->saveRootUrl(m_view->rootUrl());
 401 }
 402
 403 void DolphinViewContainer::dropUrls(const KUrl& destination, QDropEvent* event)
 404 {
 405     DragAndDropHelper::instance().dropUrls(KFileItem(), destination, event, this);
 406 }
 407
 408 void DolphinViewContainer::redirect(const KUrl& oldUrl, const KUrl& newUrl)
 409 {
 410     Q_UNUSED(oldUrl);
 411     const bool block = m_urlNavigator->signalsBlocked();
 412     m_urlNavigator->blockSignals(true);
 413     m_urlNavigator->setUrl(newUrl);
 414     m_urlNavigator->blockSignals(block);
 415 }
 416
 417 void DolphinViewContainer::requestFocus()
 418 {
 419     m_view->setFocus();
 420 }
 421
 422 void DolphinViewContainer::slotItemTriggered(const KFileItem& item)
 423 {
 424     KUrl url = item.targetUrl();
 425
 426     if (item.isDir()) {
 427         m_view->setUrl(url);
 428         return;
 429     }
 430
 431     const GeneralSettings* settings = DolphinSettings::instance().generalSettings();
 432     const bool browseThroughArchives = settings->browseThroughArchives();
 433     if (browseThroughArchives && item.isFile() && url.isLocalFile()) {
 434         // Generic mechanism for redirecting to tar:/<path>/ when clicking on a tar file,
 435         // zip:/<path>/ when clicking on a zip file, etc.
 436         // The .protocol file specifies the mimetype that the kioslave handles.
 437         // Note that we don't use mimetype inheritance since we don't want to
 438         // open OpenDocument files as zip folders...
 439         const QString protocol = KProtocolManager::protocolForArchiveMimetype(item.mimetype());
 440         if (!protocol.isEmpty()) {
 441             url.setProtocol(protocol);
 442             m_view->setUrl(url);
 443             return;
 444         }
 445     }
 446
 447     item.run();
 448 }
 449
 450 void DolphinViewContainer::openFile(const KUrl& url)
 451 {
 452     // Using m_dolphinModel for getting the file item instance is not possible
 453     // here: openFile() is triggered by an error of the directory lister
 454     // job, so the file item must be received "manually".
 455     const KFileItem item(KFileItem::Unknown, KFileItem::Unknown, url);
 456     slotItemTriggered(item);
 457 }
 458
 459 #include "dolphinviewcontainer.moc"