src/views/dolphinview.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006-2009 by Peter Penz <peter.penz@gmx.at>             *
   3  *   Copyright (C) 2006 by Gregor Kališnik <gregor@podnapisi.net>          *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  19  ***************************************************************************/
  20
  21 #include "dolphinview.h"
  22
  23 #include <QAbstractItemView>
  24 #include <QApplication>
  25 #include <QClipboard>
  26 #include <QKeyEvent>
  27 #include <QItemSelection>
  28 #include <QBoxLayout>
  29 #include <QTimer>
  30 #include <QScrollBar>
  31
  32 #include <kactioncollection.h>
  33 #include <kcolorscheme.h>
  34 #include <kdirlister.h>
  35 #include <kiconeffect.h>
  36 #include <kfileitem.h>
  37 #include <klocale.h>
  38 #include <kio/deletejob.h>
  39 #include <kio/netaccess.h>
  40 #include <kio/previewjob.h>
  41 #include <kjob.h>
  42 #include <kmenu.h>
  43 #include <kmessagebox.h>
  44 #include <konq_fileitemcapabilities.h>
  45 #include <konq_operations.h>
  46 #include <konqmimedata.h>
  47 #include <ktoggleaction.h>
  48 #include <kurl.h>
  49
  50 #include "additionalinfoaccessor.h"
  51 #include "dolphinmodel.h"
  52 #include "dolphincolumnviewcontainer.h"
  53 #include "dolphinviewcontroller.h"
  54 #include "dolphindetailsview.h"
  55 #include "dolphinfileitemdelegate.h"
  56 #include "dolphinnewfilemenuobserver.h"
  57 #include "dolphinsortfilterproxymodel.h"
  58 #include "dolphin_detailsmodesettings.h"
  59 #include "dolphiniconsview.h"
  60 #include "dolphin_generalsettings.h"
  61 #include "draganddrophelper.h"
  62 #include "renamedialog.h"
  63 #include "settings/dolphinsettings.h"
  64 #include "viewmodecontroller.h"
  65 #include "viewproperties.h"
  66 #include "zoomlevelinfo.h"
  67 #include "dolphindetailsviewexpander.h"
  68
  69 DolphinView::DolphinView(QWidget* parent,
  70                          const KUrl& url,
  71                          DolphinSortFilterProxyModel* proxyModel) :
  72     QWidget(parent),
  73     m_active(true),
  74     m_showPreview(false),
  75     m_storedCategorizedSorting(false),
  76     m_tabsForFiles(false),
  77     m_isContextMenuOpen(false),
  78     m_assureVisibleCurrentIndex(false),
  79     m_mode(DolphinView::IconsView),
  80     m_topLayout(0),
  81     m_dolphinViewController(0),
  82     m_viewModeController(0),
  83     m_viewAccessor(proxyModel),
  84     m_selectionChangedTimer(0),
  85     m_activeItemUrl(),
  86     m_restoredContentsPosition(),
  87     m_createdItemUrl(),
  88     m_selectedItems(),
  89     m_newFileNames()
  90 {
  91     m_topLayout = new QVBoxLayout(this);
  92     m_topLayout->setSpacing(0);
  93     m_topLayout->setMargin(0);
  94
  95     m_dolphinViewController = new DolphinViewController(this);
  96
  97     m_viewModeController = new ViewModeController(this);
  98     m_viewModeController->setUrl(url);
  99
 100     connect(m_viewModeController, SIGNAL(urlChanged(const KUrl&)),
 101             this, SIGNAL(urlChanged(const KUrl&)));
 102
 103     connect(m_dolphinViewController, SIGNAL(requestContextMenu(const QPoint&, const QList<QAction*>&)),
 104             this, SLOT(openContextMenu(const QPoint&, const QList<QAction*>&)));
 105     connect(m_dolphinViewController, SIGNAL(urlsDropped(const KFileItem&, const KUrl&, QDropEvent*)),
 106             this, SLOT(dropUrls(const KFileItem&, const KUrl&, QDropEvent*)));
 107     connect(m_dolphinViewController, SIGNAL(sortingChanged(DolphinView::Sorting)),
 108             this, SLOT(updateSorting(DolphinView::Sorting)));
 109     connect(m_dolphinViewController, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 110             this, SLOT(updateSortOrder(Qt::SortOrder)));
 111     connect(m_dolphinViewController, SIGNAL(sortFoldersFirstChanged(bool)),
 112             this, SLOT(updateSortFoldersFirst(bool)));
 113     connect(m_dolphinViewController, SIGNAL(additionalInfoChanged(const KFileItemDelegate::InformationList&)),
 114             this, SLOT(updateAdditionalInfo(const KFileItemDelegate::InformationList&)));
 115     connect(m_dolphinViewController, SIGNAL(itemTriggered(const KFileItem&)),
 116             this, SLOT(triggerItem(const KFileItem&)));
 117     connect(m_dolphinViewController, SIGNAL(tabRequested(const KUrl&)),
 118             this, SIGNAL(tabRequested(const KUrl&)));
 119     connect(m_dolphinViewController, SIGNAL(activated()),
 120             this, SLOT(activate()));
 121     connect(m_dolphinViewController, SIGNAL(itemEntered(const KFileItem&)),
 122             this, SLOT(showHoverInformation(const KFileItem&)));
 123     connect(m_dolphinViewController, SIGNAL(viewportEntered()),
 124             this, SLOT(clearHoverInformation()));
 125     connect(m_dolphinViewController, SIGNAL(urlChangeRequested(KUrl)),
 126             m_viewModeController, SLOT(setUrl(KUrl)));
 127
 128     // When a new item has been created by the "Create New..." menu, the item should
 129     // get selected and it must be assured that the item will get visible. As the
 130     // creation is done asynchronously, several signals must be checked:
 131     connect(&DolphinNewFileMenuObserver::instance(), SIGNAL(itemCreated(const KUrl&)),
 132             this, SLOT(observeCreatedItem(const KUrl&)));
 133
 134     m_selectionChangedTimer = new QTimer(this);
 135     m_selectionChangedTimer->setSingleShot(true);
 136     m_selectionChangedTimer->setInterval(300);
 137     connect(m_selectionChangedTimer, SIGNAL(timeout()),
 138             this, SLOT(emitSelectionChangedSignal()));
 139
 140     applyViewProperties();
 141     m_topLayout->addWidget(m_viewAccessor.layoutTarget());
 142 }
 143
 144 DolphinView::~DolphinView()
 145 {
 146 }
 147
 148 KUrl DolphinView::url() const
 149 {
 150     return m_viewModeController->url();
 151 }
 152
 153 KUrl DolphinView::rootUrl() const
 154 {
 155     const KUrl viewUrl = url();
 156     const KUrl root = m_viewAccessor.rootUrl();
 157     if (root.isEmpty() || !root.isParentOf(viewUrl)) {
 158         return viewUrl;
 159     }
 160     return root;
 161 }
 162
 163 void DolphinView::setActive(bool active)
 164 {
 165     if (active == m_active) {
 166         return;
 167     }
 168
 169     m_active = active;
 170
 171     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 172     if (active) {
 173         emitSelectionChangedSignal();
 174     } else {
 175         color.setAlpha(150);
 176     }
 177
 178     QWidget* viewport = m_viewAccessor.itemView()->viewport();
 179     QPalette palette;
 180     palette.setColor(viewport->backgroundRole(), color);
 181     viewport->setPalette(palette);
 182
 183     update();
 184
 185     if (active) {
 186         m_viewAccessor.itemView()->setFocus();
 187         emit activated();
 188     }
 189
 190     m_viewModeController->indicateActivationChange(active);
 191 }
 192
 193 bool DolphinView::isActive() const
 194 {
 195     return m_active;
 196 }
 197
 198 void DolphinView::setMode(Mode mode)
 199 {
 200     if (mode == m_mode) {
 201         return; // the wished mode is already set
 202     }
 203
 204     const int oldZoomLevel = m_viewModeController->zoomLevel();
 205     m_mode = mode;
 206
 207     // remember the currently selected items, so that they will
 208     // be restored after reloading the directory
 209     m_selectedItems = selectedItems();
 210
 211     deleteView();
 212
 213     const KUrl viewPropsUrl = rootUrl();
 214     ViewProperties props(viewPropsUrl);
 215     props.setViewMode(m_mode);
 216     createView();
 217
 218     // the file item delegate has been recreated, apply the current
 219     // additional information manually
 220     const KFileItemDelegate::InformationList infoList = props.additionalInfo();
 221     m_viewAccessor.itemDelegate()->setShowInformation(infoList);
 222     emit additionalInfoChanged();
 223
 224     // Not all view modes support categorized sorting. Adjust the sorting model
 225     // if changing the view mode results in a change of the categorized sorting
 226     // capabilities.
 227     m_storedCategorizedSorting = props.categorizedSorting();
 228     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 229     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
 230         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 231         emit categorizedSortingChanged();
 232     }
 233
 234     emit modeChanged();
 235
 236     updateZoomLevel(oldZoomLevel);
 237     loadDirectory(viewPropsUrl);
 238 }
 239
 240 DolphinView::Mode DolphinView::mode() const
 241 {
 242     return m_mode;
 243 }
 244
 245 bool DolphinView::showPreview() const
 246 {
 247     return m_showPreview;
 248 }
 249
 250 bool DolphinView::showHiddenFiles() const
 251 {
 252     return m_viewAccessor.dirLister()->showingDotFiles();
 253 }
 254
 255 bool DolphinView::categorizedSorting() const
 256 {
 257     // If all view modes would support categorized sorting, returning
 258     // m_viewAccessor.proxyModel()->isCategorizedModel() would be the way to go. As
 259     // currently only the icons view supports caterized sorting, we remember
 260     // the stored view properties state in m_storedCategorizedSorting and
 261     // return this state. The application takes care to disable the corresponding
 262     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 263     // that this setting is not applied to the current view mode.
 264     return m_storedCategorizedSorting;
 265 }
 266
 267 bool DolphinView::supportsCategorizedSorting() const
 268 {
 269     return m_viewAccessor.supportsCategorizedSorting();
 270 }
 271
 272 KFileItemList DolphinView::items() const
 273 {
 274     return m_viewAccessor.dirLister()->items();
 275 }
 276
 277 KFileItemList DolphinView::selectedItems() const
 278 {
 279     KFileItemList itemList;
 280     const QAbstractItemView* view = m_viewAccessor.itemView();
 281     if (view == 0) {
 282         return itemList;
 283     }
 284
 285     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
 286
 287     const QModelIndexList indexList = selection.indexes();
 288     foreach (const QModelIndex &index, indexList) {
 289         KFileItem item = m_viewAccessor.dirModel()->itemForIndex(index);
 290         if (!item.isNull()) {
 291             itemList.append(item);
 292         }
 293     }
 294
 295     return itemList;
 296 }
 297
 298 int DolphinView::selectedItemsCount() const
 299 {
 300     const QAbstractItemView* view = m_viewAccessor.itemView();
 301     if (view == 0) {
 302         return 0;
 303     }
 304
 305     return view->selectionModel()->selectedIndexes().count();
 306 }
 307
 308 void DolphinView::markUrlsAsSelected(const QList<KUrl>& urls)
 309 {
 310     foreach (const KUrl& url, urls) {
 311         KFileItem item(KFileItem::Unknown, KFileItem::Unknown, url);
 312         m_selectedItems.append(item);
 313     }
 314 }
 315
 316 void DolphinView::setItemSelectionEnabled(const QRegExp& pattern, bool enabled)
 317 {
 318     const QItemSelection matchingIndexes = childrenMatchingPattern(QModelIndex(), pattern);
 319     const QItemSelectionModel::SelectionFlags command = enabled
 320                                                       ? QItemSelectionModel::Select
 321                                                       : QItemSelectionModel::Deselect;
 322     m_viewAccessor.itemView()->selectionModel()->select(matchingIndexes, command);
 323 }
 324
 325 void DolphinView::setZoomLevel(int level)
 326 {
 327     if (level < ZoomLevelInfo::minimumLevel()) {
 328         level = ZoomLevelInfo::minimumLevel();
 329     } else if (level > ZoomLevelInfo::maximumLevel()) {
 330         level = ZoomLevelInfo::maximumLevel();
 331     }
 332
 333     if (level != zoomLevel()) {
 334         m_viewModeController->setZoomLevel(level);
 335         emit zoomLevelChanged(level);
 336     }
 337 }
 338
 339 int DolphinView::zoomLevel() const
 340 {
 341     return m_viewModeController->zoomLevel();
 342 }
 343
 344 void DolphinView::setSorting(Sorting sorting)
 345 {
 346     if (sorting != this->sorting()) {
 347         updateSorting(sorting);
 348     }
 349 }
 350
 351 DolphinView::Sorting DolphinView::sorting() const
 352 {
 353     return m_viewAccessor.proxyModel()->sorting();
 354 }
 355
 356 void DolphinView::setSortOrder(Qt::SortOrder order)
 357 {
 358     if (sortOrder() != order) {
 359         updateSortOrder(order);
 360     }
 361 }
 362
 363 Qt::SortOrder DolphinView::sortOrder() const
 364 {
 365     return m_viewAccessor.proxyModel()->sortOrder();
 366 }
 367
 368 void DolphinView::setSortFoldersFirst(bool foldersFirst)
 369 {
 370     if (sortFoldersFirst() != foldersFirst) {
 371         updateSortFoldersFirst(foldersFirst);
 372     }
 373 }
 374
 375 bool DolphinView::sortFoldersFirst() const
 376 {
 377     return m_viewAccessor.proxyModel()->sortFoldersFirst();
 378 }
 379
 380 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 381 {
 382     const KUrl viewPropsUrl = rootUrl();
 383     ViewProperties props(viewPropsUrl);
 384     props.setAdditionalInfo(info);
 385     m_viewAccessor.itemDelegate()->setShowInformation(info);
 386
 387     emit additionalInfoChanged();
 388
 389     if (m_viewAccessor.reloadOnAdditionalInfoChange()) {
 390         loadDirectory(viewPropsUrl);
 391     }
 392 }
 393
 394 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 395 {
 396     return m_viewAccessor.itemDelegate()->showInformation();
 397 }
 398
 399 void DolphinView::reload()
 400 {
 401     QByteArray viewState;
 402     QDataStream saveStream(&viewState, QIODevice::WriteOnly);
 403     saveState(saveStream);
 404     m_selectedItems= selectedItems();
 405
 406     setUrl(url());
 407     loadDirectory(url(), true);
 408
 409     QDataStream restoreStream(viewState);
 410     restoreState(restoreStream);
 411 }
 412
 413 void DolphinView::stopLoading()
 414 {
 415     m_viewAccessor.dirLister()->stop();
 416 }
 417
 418 void DolphinView::refresh()
 419 {
 420     const bool oldActivationState = m_active;
 421     const int oldZoomLevel = m_viewModeController->zoomLevel();
 422     m_active = true;
 423
 424     createView();
 425     applyViewProperties();
 426     reload();
 427
 428     setActive(oldActivationState);
 429     updateZoomLevel(oldZoomLevel);
 430 }
 431
 432 void DolphinView::setNameFilter(const QString& nameFilter)
 433 {
 434     m_viewModeController->setNameFilter(nameFilter);
 435 }
 436
 437 void DolphinView::calculateItemCount(int& fileCount,
 438                                      int& folderCount,
 439                                      KIO::filesize_t& totalFileSize) const
 440 {
 441     foreach (const KFileItem& item, m_viewAccessor.dirLister()->items()) {
 442         if (item.isDir()) {
 443             ++folderCount;
 444         } else {
 445             ++fileCount;
 446             totalFileSize += item.size();
 447         }
 448     }
 449 }
 450
 451 QString DolphinView::statusBarText() const
 452 {
 453     QString text;
 454     int folderCount = 0;
 455     int fileCount = 0;
 456     KIO::filesize_t totalFileSize = 0;
 457
 458     if (hasSelection()) {
 459         // give a summary of the status of the selected files
 460         const KFileItemList list = selectedItems();
 461         if (list.isEmpty()) {
 462             // when an item is triggered, it is temporary selected but selectedItems()
 463             // will return an empty list
 464             return text;
 465         }
 466
 467         KFileItemList::const_iterator it = list.begin();
 468         const KFileItemList::const_iterator end = list.end();
 469         while (it != end) {
 470             const KFileItem& item = *it;
 471             if (item.isDir()) {
 472                 ++folderCount;
 473             } else {
 474                 ++fileCount;
 475                 totalFileSize += item.size();
 476             }
 477             ++it;
 478         }
 479
 480         if (folderCount + fileCount == 1) {
 481             // if only one item is selected, show the filename
 482             const QString name = list.first().text();
 483             text = (folderCount == 1) ? i18nc("@info:status", "<filename>%1</filename> selected", name) :
 484                                         i18nc("@info:status", "<filename>%1</filename> selected (%2)",
 485                                               name, KIO::convertSize(totalFileSize));
 486         } else {
 487             // at least 2 items are selected
 488             const QString foldersText = i18ncp("@info:status", "1 Folder selected", "%1 Folders selected", folderCount);
 489             const QString filesText = i18ncp("@info:status", "1 File selected", "%1 Files selected", fileCount);
 490             if ((folderCount > 0) && (fileCount > 0)) {
 491                 text = i18nc("@info:status folders, files (size)", "%1, %2 (%3)",
 492                              foldersText, filesText, KIO::convertSize(totalFileSize));
 493             } else if (fileCount > 0) {
 494                 text = i18nc("@info:status files (size)", "%1 (%2)", filesText, KIO::convertSize(totalFileSize));
 495             } else {
 496                 Q_ASSERT(folderCount > 0);
 497                 text = foldersText;
 498             }
 499         }
 500     } else {
 501         calculateItemCount(fileCount, folderCount, totalFileSize);
 502         text = KIO::itemsSummaryString(fileCount + folderCount,
 503                                        fileCount, folderCount,
 504                                        totalFileSize, true);
 505     }
 506
 507     return text;
 508 }
 509
 510 QList<QAction*> DolphinView::versionControlActions(const KFileItemList& items) const
 511 {
 512     return m_dolphinViewController->versionControlActions(items);
 513 }
 514
 515 void DolphinView::setUrl(const KUrl& url)
 516 {
 517     if (m_viewModeController->url() == url) {
 518         return;
 519     }
 520
 521     const bool hadSelection = hasSelection();
 522
 523     // The selection model and directory lister might change in the case of the column view:
 524     disconnectViewAccessor();
 525
 526     m_newFileNames.clear();
 527
 528     m_viewModeController->setUrl(url); // emits urlChanged, which we forward
 529     m_viewAccessor.prepareUrlChange(url);
 530     applyViewProperties();
 531     loadDirectory(url);
 532
 533     // When changing the URL there is no need to keep the version
 534     // data of the previous URL.
 535     m_viewAccessor.dirModel()->clearVersionData();
 536
 537     emit startedPathLoading(url);
 538
 539     // Reconnect to the (probably) new selection model and directory lister
 540     connectViewAccessor();
 541
 542     if (hadSelection || hasSelection()) {
 543         emitSelectionChangedSignal();
 544     }
 545 }
 546
 547 void DolphinView::selectAll()
 548 {
 549     m_viewAccessor.itemView()->selectAll();
 550 }
 551
 552 void DolphinView::invertSelection()
 553 {
 554     QItemSelectionModel* selectionModel = m_viewAccessor.itemView()->selectionModel();
 555     const QAbstractItemModel* itemModel = selectionModel->model();
 556
 557     const QModelIndex topLeft = itemModel->index(0, 0);
 558     const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 559                                                      itemModel->columnCount() - 1);
 560
 561     const QItemSelection selection(topLeft, bottomRight);
 562     selectionModel->select(selection, QItemSelectionModel::Toggle);
 563 }
 564
 565 void DolphinView::clearSelection()
 566 {
 567     m_viewAccessor.itemView()->clearSelection();
 568 }
 569
 570 void DolphinView::renameSelectedItems()
 571 {
 572     KFileItemList items = selectedItems();
 573     const int itemCount = items.count();
 574     if (itemCount < 1) {
 575         return;
 576     }
 577
 578     if ((itemCount == 1) && DolphinSettings::instance().generalSettings()->renameInline()) {
 579         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForItem(items.first());
 580         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
 581         m_viewAccessor.itemView()->edit(proxyIndex);
 582     } else {
 583         RenameDialog* dialog = new RenameDialog(this, items);
 584         dialog->setAttribute(Qt::WA_DeleteOnClose);
 585         dialog->show();
 586         dialog->raise();
 587         dialog->activateWindow();
 588     }
 589 }
 590
 591 void DolphinView::trashSelectedItems()
 592 {
 593     const KUrl::List list = simplifiedSelectedUrls();
 594     KonqOperations::del(this, KonqOperations::TRASH, list);
 595 }
 596
 597 void DolphinView::deleteSelectedItems()
 598 {
 599     const KUrl::List list = simplifiedSelectedUrls();
 600     const bool del = KonqOperations::askDeleteConfirmation(list,
 601                      KonqOperations::DEL,
 602                      KonqOperations::DEFAULT_CONFIRMATION,
 603                      this);
 604
 605     if (del) {
 606         KIO::Job* job = KIO::del(list);
 607         connect(job, SIGNAL(result(KJob*)),
 608                 this, SLOT(slotDeleteFileFinished(KJob*)));
 609     }
 610 }
 611
 612 void DolphinView::cutSelectedItems()
 613 {
 614     QMimeData* mimeData = selectionMimeData();
 615     KonqMimeData::addIsCutSelection(mimeData, true);
 616     QApplication::clipboard()->setMimeData(mimeData);
 617 }
 618
 619 void DolphinView::copySelectedItems()
 620 {
 621     QMimeData* mimeData = selectionMimeData();
 622     QApplication::clipboard()->setMimeData(mimeData);
 623 }
 624
 625 void DolphinView::paste()
 626 {
 627     pasteToUrl(url());
 628 }
 629
 630 void DolphinView::pasteIntoFolder()
 631 {
 632     const KFileItemList items = selectedItems();
 633     if ((items.count() == 1) && items.first().isDir()) {
 634         pasteToUrl(items.first().url());
 635     }
 636 }
 637
 638 void DolphinView::setShowPreview(bool show)
 639 {
 640     if (m_showPreview == show) {
 641         return;
 642     }
 643
 644     const KUrl viewPropsUrl = rootUrl();
 645     ViewProperties props(viewPropsUrl);
 646     props.setShowPreview(show);
 647
 648     m_showPreview = show;
 649     const int oldZoomLevel = m_viewModeController->zoomLevel();
 650     emit showPreviewChanged();
 651
 652     // Enabling or disabling the preview might change the icon size of the view.
 653     // As the view does not emit a signal when the icon size has been changed,
 654     // the used zoom level of the controller must be adjusted manually:
 655     updateZoomLevel(oldZoomLevel);
 656 }
 657
 658 void DolphinView::setShowHiddenFiles(bool show)
 659 {
 660     if (m_viewAccessor.dirLister()->showingDotFiles() == show) {
 661         return;
 662     }
 663
 664     const KUrl viewPropsUrl = rootUrl();
 665     ViewProperties props(viewPropsUrl);
 666     props.setShowHiddenFiles(show);
 667
 668     m_viewAccessor.dirLister()->setShowingDotFiles(show);
 669     emit showHiddenFilesChanged();
 670 }
 671
 672 void DolphinView::setCategorizedSorting(bool categorized)
 673 {
 674     if (categorized == categorizedSorting()) {
 675         return;
 676     }
 677
 678     // setCategorizedSorting(true) may only get invoked
 679     // if the view supports categorized sorting
 680     Q_ASSERT(!categorized || supportsCategorizedSorting());
 681
 682     ViewProperties props(rootUrl());
 683     props.setCategorizedSorting(categorized);
 684     props.save();
 685
 686     m_storedCategorizedSorting = categorized;
 687     m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 688
 689     emit categorizedSortingChanged();
 690 }
 691
 692 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 693 {
 694     QWidget::mouseReleaseEvent(event);
 695     setActive(true);
 696 }
 697
 698 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 699 {
 700     switch (event->type()) {
 701     case QEvent::FocusIn:
 702         if (watched == m_viewAccessor.itemView()) {
 703             m_dolphinViewController->requestActivation();
 704         }
 705         break;
 706
 707     case QEvent::DragEnter:
 708         if (watched == m_viewAccessor.itemView()->viewport()) {
 709             setActive(true);
 710         }
 711         break;
 712
 713     case QEvent::KeyPress:
 714         if (watched == m_viewAccessor.itemView()) {
 715             // clear the selection when Escape has been pressed
 716             QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
 717             if (keyEvent->key() == Qt::Key_Escape) {
 718                 clearSelection();
 719             }
 720         }
 721         break;
 722
 723     case QEvent::Wheel:
 724         if (watched == m_viewAccessor.itemView()->viewport()) {
 725             // Ctrl+wheel events should cause icon zooming, but not if the left mouse button is pressed
 726             // (the user is probably trying to scroll during a selection in that case)
 727             QWheelEvent* wheelEvent = static_cast<QWheelEvent*>(event);
 728             if (wheelEvent->modifiers() & Qt::ControlModifier && !(wheelEvent->buttons() & Qt::LeftButton)) {
 729                 const int delta = wheelEvent->delta();
 730                 const int level = zoomLevel();
 731                 if (delta > 0) {
 732                     setZoomLevel(level + 1);
 733                 } else if (delta < 0) {
 734                     setZoomLevel(level - 1);
 735                 }
 736                 return true;
 737             }
 738         }
 739         break;
 740
 741     default:
 742         break;
 743     }
 744
 745     return QWidget::eventFilter(watched, event);
 746 }
 747
 748 void DolphinView::activate()
 749 {
 750     setActive(true);
 751 }
 752
 753 void DolphinView::triggerItem(const KFileItem& item)
 754 {
 755     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 756     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 757         // items are selected by the user, hence don't trigger the
 758         // item specified by 'index'
 759         return;
 760     }
 761
 762     // TODO: the m_isContextMenuOpen check is a workaround for Qt-issue 207192
 763     if (item.isNull() || m_isContextMenuOpen) {
 764         return;
 765     }
 766
 767     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 768 }
 769
 770 void DolphinView::slotSelectionChanged(const QItemSelection& selected, const QItemSelection& deselected)
 771 {
 772     const int count = selectedItemsCount();
 773     const bool selectionStateChanged = ((count >  0) && (selected.count() == count)) ||
 774                                        ((count == 0) && !deselected.isEmpty());
 775
 776     // If nothing has been selected before and something got selected (or if something
 777     // was selected before and now nothing is selected) the selectionChangedSignal must
 778     // be emitted asynchronously as fast as possible to update the edit-actions.
 779     m_selectionChangedTimer->setInterval(selectionStateChanged ? 0 : 300);
 780     m_selectionChangedTimer->start();
 781 }
 782
 783 void DolphinView::emitSelectionChangedSignal()
 784 {
 785     m_selectionChangedTimer->stop();
 786     emit selectionChanged(selectedItems());
 787 }
 788
 789 void DolphinView::openContextMenu(const QPoint& pos,
 790                                   const QList<QAction*>& customActions)
 791 {
 792     KFileItem item;
 793     const QModelIndex index = m_viewAccessor.itemView()->indexAt(pos);
 794     if (index.isValid() && (index.column() == DolphinModel::Name)) {
 795         const QModelIndex dolphinModelIndex = m_viewAccessor.proxyModel()->mapToSource(index);
 796         item = m_viewAccessor.dirModel()->itemForIndex(dolphinModelIndex);
 797     }
 798
 799     m_isContextMenuOpen = true; // TODO: workaround for Qt-issue 207192
 800     emit requestContextMenu(item, url(), customActions);
 801     m_isContextMenuOpen = false;
 802 }
 803
 804 void DolphinView::dropUrls(const KFileItem& destItem,
 805                            const KUrl& destPath,
 806                            QDropEvent* event)
 807 {
 808     addNewFileNames(event->mimeData());
 809     DragAndDropHelper::instance().dropUrls(destItem, destPath, event, this);
 810 }
 811
 812 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 813 {
 814     ViewProperties props(rootUrl());
 815     props.setSorting(sorting);
 816
 817     m_viewAccessor.proxyModel()->setSorting(sorting);
 818
 819     emit sortingChanged(sorting);
 820 }
 821
 822 void DolphinView::updateSortOrder(Qt::SortOrder order)
 823 {
 824     ViewProperties props(rootUrl());
 825     props.setSortOrder(order);
 826
 827     m_viewAccessor.proxyModel()->setSortOrder(order);
 828
 829     emit sortOrderChanged(order);
 830 }
 831
 832 void DolphinView::updateSortFoldersFirst(bool foldersFirst)
 833 {
 834     ViewProperties props(rootUrl());
 835     props.setSortFoldersFirst(foldersFirst);
 836
 837     m_viewAccessor.proxyModel()->setSortFoldersFirst(foldersFirst);
 838
 839     emit sortFoldersFirstChanged(foldersFirst);
 840 }
 841
 842 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 843 {
 844     ViewProperties props(rootUrl());
 845     props.setAdditionalInfo(info);
 846     props.save();
 847
 848     m_viewAccessor.itemDelegate()->setShowInformation(info);
 849
 850     emit additionalInfoChanged();
 851 }
 852
 853 void DolphinView::updateAdditionalInfoActions(KActionCollection* collection)
 854 {
 855     const AdditionalInfoAccessor& infoAccessor = AdditionalInfoAccessor::instance();
 856
 857     const KFileItemDelegate::InformationList checkedInfo = m_viewAccessor.itemDelegate()->showInformation();
 858     const KFileItemDelegate::InformationList infoKeys = infoAccessor.keys();
 859
 860     const bool enable = (m_mode == DolphinView::DetailsView) ||
 861                         (m_mode == DolphinView::IconsView);
 862
 863     foreach (const KFileItemDelegate::Information& info, infoKeys) {
 864         const QString name = infoAccessor.actionCollectionName(info, AdditionalInfoAccessor::AdditionalInfoType);
 865         QAction* action = collection->action(name);
 866         Q_ASSERT(action != 0);
 867         action->setEnabled(enable);
 868         action->setChecked(checkedInfo.contains(info));
 869     }
 870 }
 871
 872 QPair<bool, QString> DolphinView::pasteInfo() const
 873 {
 874     return KonqOperations::pasteInfo(url());
 875 }
 876
 877 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
 878 {
 879     m_tabsForFiles = tabsForFiles;
 880 }
 881
 882 bool DolphinView::isTabsForFilesEnabled() const
 883 {
 884     return m_tabsForFiles;
 885 }
 886
 887 bool DolphinView::itemsExpandable() const
 888 {
 889     return m_viewAccessor.itemsExpandable();
 890 }
 891
 892 void DolphinView::restoreState(QDataStream& stream)
 893 {
 894     // Restore the URL of the current item that had the keyboard focus
 895     stream >> m_activeItemUrl;
 896
 897     // Restore the root URL
 898     KUrl rootUrl;
 899     stream >> rootUrl;
 900     m_viewAccessor.setRootUrl(rootUrl);
 901
 902     // Restore the view position
 903     stream >> m_restoredContentsPosition;
 904
 905     // Restore expanded folders (only relevant for the details view - will be ignored by the view in other view modes)
 906     QSet<KUrl> urlsToExpand;
 907     stream >> urlsToExpand;
 908     const DolphinDetailsViewExpander* expander = m_viewAccessor.setExpandedUrls(urlsToExpand);
 909     if (expander != 0) {
 910         m_expanderActive = true;
 911         connect (expander, SIGNAL(completed()), this, SLOT(slotLoadingCompleted()));
 912     }
 913     else {
 914         m_expanderActive = false;
 915     }
 916 }
 917
 918 void DolphinView::saveState(QDataStream& stream)
 919 {
 920     // Save the URL of the current item that has the keyboard focus
 921     KFileItem currentItem;
 922     const QAbstractItemView* view = m_viewAccessor.itemView();
 923
 924     if (view != 0) {
 925         const QModelIndex proxyIndex = view->currentIndex();
 926         const QModelIndex dirModelIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
 927         currentItem = m_viewAccessor.dirModel()->itemForIndex(dirModelIndex);
 928     }
 929
 930     KUrl currentItemUrl;
 931     if (!currentItem.isNull()) {
 932         currentItemUrl = currentItem.url();
 933     }
 934
 935     stream << currentItemUrl;
 936
 937     // Save the root URL
 938     stream << m_viewAccessor.rootUrl();
 939
 940     // Save view position
 941     const int x = view->horizontalScrollBar()->value();
 942     const int y = view->verticalScrollBar()->value();
 943     stream << QPoint(x, y);
 944
 945     // Save expanded folders (only relevant for the details view - the set will be empty in other view modes)
 946     stream << m_viewAccessor.expandedUrls();
 947 }
 948
 949 bool DolphinView::hasSelection() const
 950 {
 951     const QAbstractItemView* view = m_viewAccessor.itemView();
 952     return (view != 0) && view->selectionModel()->hasSelection();
 953 }
 954
 955 void DolphinView::observeCreatedItem(const KUrl& url)
 956 {
 957     m_createdItemUrl = url;
 958     connect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
 959             this, SLOT(selectAndScrollToCreatedItem()));
 960 }
 961
 962 void DolphinView::selectAndScrollToCreatedItem()
 963 {
 964     const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_createdItemUrl);
 965     if (dirIndex.isValid()) {
 966         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
 967         m_viewAccessor.itemView()->setCurrentIndex(proxyIndex);
 968     }
 969
 970     disconnect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
 971                this, SLOT(selectAndScrollToCreatedItem()));
 972     m_createdItemUrl = KUrl();
 973 }
 974
 975 void DolphinView::showHoverInformation(const KFileItem& item)
 976 {
 977     emit requestItemInfo(item);
 978 }
 979
 980 void DolphinView::clearHoverInformation()
 981 {
 982     emit requestItemInfo(KFileItem());
 983 }
 984
 985 void DolphinView::slotDeleteFileFinished(KJob* job)
 986 {
 987     if (job->error() == 0) {
 988         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
 989     } else if (job->error() != KIO::ERR_USER_CANCELED) {
 990         emit errorMessage(job->errorString());
 991     }
 992 }
 993
 994 void DolphinView::slotDirListerCompleted()
 995 {
 996     if (!m_expanderActive) {
 997         slotLoadingCompleted();
 998     }
 999
1000     if (!m_newFileNames.isEmpty()) {
1001         // select all newly added items created by a paste operation or
1002         // a drag & drop operation, and clear the previous selection
1003         m_viewAccessor.itemView()->clearSelection();
1004         const int rowCount = m_viewAccessor.proxyModel()->rowCount();
1005         QItemSelection selection;
1006         for (int row = 0; row < rowCount; ++row) {
1007             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->index(row, 0);
1008             const QModelIndex dirIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
1009             const KUrl url = m_viewAccessor.dirModel()->itemForIndex(dirIndex).url();
1010             if (m_newFileNames.contains(url.fileName())) {
1011                 selection.merge(QItemSelection(proxyIndex, proxyIndex), QItemSelectionModel::Select);
1012             }
1013         }
1014         m_viewAccessor.itemView()->selectionModel()->select(selection, QItemSelectionModel::Select);
1015
1016         m_newFileNames.clear();
1017     }
1018 }
1019
1020 void DolphinView::slotLoadingCompleted()
1021 {
1022     m_expanderActive = false;
1023
1024     if (!m_activeItemUrl.isEmpty()) {
1025         // assure that the current item remains visible
1026         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_activeItemUrl);
1027         if (dirIndex.isValid()) {
1028             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1029             QAbstractItemView* view = m_viewAccessor.itemView();
1030             const bool clearSelection = !hasSelection();
1031             view->setCurrentIndex(proxyIndex);
1032             if (clearSelection) {
1033                 view->clearSelection();
1034             }
1035             m_activeItemUrl.clear();
1036         }
1037     }
1038
1039     if (!m_selectedItems.isEmpty()) {
1040         const KUrl& baseUrl = url();
1041         KUrl url;
1042         QItemSelection newSelection;
1043         foreach(const KFileItem& item, m_selectedItems) {
1044             url = item.url().upUrl();
1045             if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
1046                 QModelIndex index = m_viewAccessor.proxyModel()->mapFromSource(m_viewAccessor.dirModel()->indexForItem(item));
1047                 newSelection.select(index, index);
1048             }
1049         }
1050         m_viewAccessor.itemView()->selectionModel()->select(newSelection,
1051                                                             QItemSelectionModel::ClearAndSelect
1052                                                             | QItemSelectionModel::Current);
1053         m_selectedItems.clear();
1054     }
1055
1056     // Restore the contents position. This has to be done using a Qt::QueuedConnection
1057     // because the view might not be in its final state yet.
1058     QMetaObject::invokeMethod(this, "restoreContentsPosition", Qt::QueuedConnection);
1059
1060     emit finishedPathLoading(url());
1061 }
1062
1063 void DolphinView::slotRefreshItems()
1064 {
1065     if (m_assureVisibleCurrentIndex) {
1066         m_assureVisibleCurrentIndex = false;
1067         m_viewAccessor.itemView()->scrollTo(m_viewAccessor.itemView()->currentIndex());
1068     }
1069 }
1070
1071 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1072 {
1073     if (!url.isValid()) {
1074         const QString location(url.pathOrUrl());
1075         if (location.isEmpty()) {
1076             emit errorMessage(i18nc("@info:status", "The location is empty."));
1077         } else {
1078             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1079         }
1080         return;
1081     }
1082
1083     KDirLister* dirLister = m_viewAccessor.dirLister();
1084     dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
1085 }
1086
1087 void DolphinView::applyViewProperties()
1088 {
1089     const ViewProperties props(rootUrl());
1090
1091     const Mode mode = props.viewMode();
1092     if (m_mode != mode) {
1093         const int oldZoomLevel = m_viewModeController->zoomLevel();
1094
1095         m_mode = mode;
1096         createView();
1097         emit modeChanged();
1098
1099         updateZoomLevel(oldZoomLevel);
1100     }
1101     if (m_viewAccessor.itemView() == 0) {
1102         createView();
1103     }
1104
1105     Q_ASSERT(m_viewAccessor.itemView() != 0);
1106     Q_ASSERT(m_viewAccessor.itemDelegate() != 0);
1107
1108     const bool showHiddenFiles = props.showHiddenFiles();
1109     if (showHiddenFiles != m_viewAccessor.dirLister()->showingDotFiles()) {
1110         m_viewAccessor.dirLister()->setShowingDotFiles(showHiddenFiles);
1111         emit showHiddenFilesChanged();
1112     }
1113
1114     m_storedCategorizedSorting = props.categorizedSorting();
1115     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1116     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
1117         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
1118         emit categorizedSortingChanged();
1119     }
1120
1121     const DolphinView::Sorting sorting = props.sorting();
1122     if (sorting != m_viewAccessor.proxyModel()->sorting()) {
1123         m_viewAccessor.proxyModel()->setSorting(sorting);
1124         emit sortingChanged(sorting);
1125     }
1126
1127     const Qt::SortOrder sortOrder = props.sortOrder();
1128     if (sortOrder != m_viewAccessor.proxyModel()->sortOrder()) {
1129         m_viewAccessor.proxyModel()->setSortOrder(sortOrder);
1130         emit sortOrderChanged(sortOrder);
1131     }
1132
1133     const bool sortFoldersFirst = props.sortFoldersFirst();
1134     if (sortFoldersFirst != m_viewAccessor.proxyModel()->sortFoldersFirst()) {
1135         m_viewAccessor.proxyModel()->setSortFoldersFirst(sortFoldersFirst);
1136         emit sortFoldersFirstChanged(sortFoldersFirst);
1137     }
1138
1139     KFileItemDelegate::InformationList info = props.additionalInfo();
1140     if (info != m_viewAccessor.itemDelegate()->showInformation()) {
1141         m_viewAccessor.itemDelegate()->setShowInformation(info);
1142         emit additionalInfoChanged();
1143     }
1144
1145     const bool showPreview = props.showPreview();
1146     if (showPreview != m_showPreview) {
1147         m_showPreview = showPreview;
1148         const int oldZoomLevel = m_viewModeController->zoomLevel();
1149         emit showPreviewChanged();
1150
1151         // Enabling or disabling the preview might change the icon size of the view.
1152         // As the view does not emit a signal when the icon size has been changed,
1153         // the used zoom level of the controller must be adjusted manually:
1154         updateZoomLevel(oldZoomLevel);
1155     }
1156 }
1157
1158 void DolphinView::createView()
1159 {
1160     deleteView();
1161
1162     Q_ASSERT(m_viewAccessor.itemView() == 0);
1163     Q_ASSERT(m_dolphinViewController->itemView() == 0);
1164     m_viewAccessor.createView(this, m_dolphinViewController, m_viewModeController, m_mode);
1165
1166     QAbstractItemView* view = m_viewAccessor.itemView();
1167     Q_ASSERT(view != 0);
1168     view->installEventFilter(this);
1169     view->viewport()->installEventFilter(this);
1170
1171     m_dolphinViewController->setItemView(view);
1172
1173     const int zoomLevel = ZoomLevelInfo::zoomLevelForIconSize(view->iconSize());
1174     m_viewModeController->setZoomLevel(zoomLevel);
1175
1176     connectViewAccessor();
1177
1178     setFocusProxy(m_viewAccessor.layoutTarget());
1179     m_topLayout->insertWidget(1, m_viewAccessor.layoutTarget());
1180 }
1181
1182 void DolphinView::deleteView()
1183 {
1184     QAbstractItemView* view = m_viewAccessor.itemView();
1185     Q_ASSERT((m_dolphinViewController->itemView() == 0) || (m_dolphinViewController->itemView() == view));
1186     m_dolphinViewController->setItemView(0);
1187
1188     if (view != 0) {
1189         disconnectViewAccessor();
1190
1191         // It's important to set the keyboard focus to the parent
1192         // before deleting the view: Otherwise when having a split
1193         // view the other view will get the focus and will request
1194         // an activation (see DolphinView::eventFilter()).
1195         setFocusProxy(0);
1196         setFocus();
1197
1198         m_viewModeController->disconnect(view);
1199
1200         m_viewAccessor.deleteView();
1201     }
1202 }
1203
1204 void DolphinView::pasteToUrl(const KUrl& url)
1205 {
1206     addNewFileNames(QApplication::clipboard()->mimeData());
1207     KonqOperations::doPaste(this, url);
1208 }
1209
1210 void DolphinView::updateZoomLevel(int oldZoomLevel)
1211 {
1212     const int newZoomLevel = ZoomLevelInfo::zoomLevelForIconSize(m_viewAccessor.itemView()->iconSize());
1213     if (oldZoomLevel != newZoomLevel) {
1214         m_viewModeController->setZoomLevel(newZoomLevel);
1215         emit zoomLevelChanged(newZoomLevel);
1216     }
1217 }
1218
1219 KUrl::List DolphinView::simplifiedSelectedUrls() const
1220 {
1221     KUrl::List urls;
1222
1223     const KFileItemList items = selectedItems();
1224     foreach (const KFileItem &item, items) {
1225         urls.append(item.url());
1226     }
1227
1228
1229     if (itemsExpandable()) {
1230         urls = KDirModel::simplifiedUrlList(urls);
1231     }
1232
1233     return urls;
1234 }
1235
1236 QMimeData* DolphinView::selectionMimeData() const
1237 {
1238     const QAbstractItemView* view = m_viewAccessor.itemView();
1239     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
1240     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
1241     return m_viewAccessor.dirModel()->mimeData(selection.indexes());
1242 }
1243
1244 void DolphinView::addNewFileNames(const QMimeData* mimeData)
1245 {
1246     const KUrl::List urls = KUrl::List::fromMimeData(mimeData);
1247     foreach (const KUrl& url, urls) {
1248         m_newFileNames.insert(url.fileName());
1249     }
1250 }
1251
1252 QItemSelection DolphinView::childrenMatchingPattern(const QModelIndex& parent, const QRegExp& pattern) const
1253 {
1254     QItemSelection matchingIndexes;
1255     const DolphinSortFilterProxyModel* proxyModel = m_viewAccessor.proxyModel();
1256     const DolphinModel* dolphinModel = m_viewAccessor.dirModel();
1257
1258     const int rowCount = proxyModel->rowCount(parent);
1259
1260     for (int row = 0; row < rowCount; ++row) {
1261         QModelIndex index = proxyModel->index(row, 0, parent);
1262         QModelIndex sourceIndex = proxyModel->mapToSource(index);
1263
1264         if (sourceIndex.isValid() && pattern.exactMatch(dolphinModel->data(sourceIndex).toString())) {
1265             matchingIndexes += QItemSelectionRange(index);
1266         }
1267
1268         if (proxyModel->hasChildren(index)) {
1269             matchingIndexes += childrenMatchingPattern(index, pattern);
1270         }
1271     }
1272
1273     return matchingIndexes;
1274 }
1275
1276 void DolphinView::connectViewAccessor()
1277 {
1278     KDirLister* dirLister = m_viewAccessor.dirLister();
1279     connect(dirLister, SIGNAL(redirection(KUrl,KUrl)),
1280             this, SLOT(slotRedirection(KUrl,KUrl)));
1281     connect(dirLister, SIGNAL(completed()),
1282             this, SLOT(slotDirListerCompleted()));
1283     connect(dirLister, SIGNAL(refreshItems(const QList<QPair<KFileItem,KFileItem>>&)),
1284             this, SLOT(slotRefreshItems()));
1285
1286     QAbstractItemView* view = m_viewAccessor.itemView();
1287     connect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
1288             this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
1289 }
1290
1291 void DolphinView::disconnectViewAccessor()
1292 {
1293     KDirLister* dirLister = m_viewAccessor.dirLister();
1294     disconnect(dirLister, SIGNAL(redirection(KUrl,KUrl)),
1295                this, SLOT(slotRedirection(KUrl,KUrl)));
1296     disconnect(dirLister, SIGNAL(completed()),
1297                this, SLOT(slotDirListerCompleted()));
1298     disconnect(dirLister, SIGNAL(refreshItems(const QList<QPair<KFileItem,KFileItem>>&)),
1299                this, SLOT(slotRefreshItems()));
1300
1301     QAbstractItemView* view = m_viewAccessor.itemView();
1302     disconnect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
1303                this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
1304 }
1305
1306 DolphinView::ViewAccessor::ViewAccessor(DolphinSortFilterProxyModel* proxyModel) :
1307     m_rootUrl(),
1308     m_iconsView(0),
1309     m_detailsView(0),
1310     m_columnsContainer(0),
1311     m_proxyModel(proxyModel),
1312     m_dragSource(0)
1313 {
1314 }
1315
1316 DolphinView::ViewAccessor::~ViewAccessor()
1317 {
1318     delete m_dragSource;
1319     m_dragSource = 0;
1320 }
1321
1322 void DolphinView::ViewAccessor::createView(QWidget* parent,
1323                                            DolphinViewController* dolphinViewController,
1324                                            const ViewModeController* viewModeController,
1325                                            Mode mode)
1326 {
1327     Q_ASSERT(itemView() == 0);
1328
1329     switch (mode) {
1330     case IconsView:
1331         m_iconsView = new DolphinIconsView(parent,
1332                                            dolphinViewController,
1333                                            viewModeController,
1334                                            m_proxyModel);
1335         break;
1336
1337     case DetailsView:
1338         m_detailsView = new DolphinDetailsView(parent,
1339                                                dolphinViewController,
1340                                                viewModeController,
1341                                                m_proxyModel);
1342         break;
1343
1344     case ColumnView:
1345         m_columnsContainer = new DolphinColumnViewContainer(parent,
1346                                                             dolphinViewController,
1347                                                             viewModeController);
1348         if (!m_rootUrl.isEmpty() && m_rootUrl.isParentOf(viewModeController->url())) {
1349             // The column-view must show several columns starting with m_rootUrl as
1350             // first column and viewModeController->url() as last column.
1351             m_columnsContainer->showColumn(m_rootUrl);
1352             m_columnsContainer->showColumn(viewModeController->url());
1353         }
1354         break;
1355
1356     default:
1357         Q_ASSERT(false);
1358     }
1359 }
1360
1361 void DolphinView::ViewAccessor::deleteView()
1362 {
1363     if (m_columnsContainer != 0) {
1364         m_columnsContainer->close();
1365         m_columnsContainer->disconnect();
1366         m_columnsContainer->deleteLater();
1367         m_columnsContainer = 0;
1368     } else {
1369         QAbstractItemView* view = itemView();
1370         if (view != 0) {
1371             view->close();
1372             view->disconnect();
1373
1374             if (DragAndDropHelper::instance().isDragSource(view)) {
1375                 // The view is a drag source (the feature "Open folders
1376                 // during drag operations" is used). Deleting the view
1377                 // during an ongoing drag operation is not allowed, so
1378                 // this will postponed.
1379                 if (m_dragSource != 0) {
1380                     // the old stored view is obviously not the drag source anymore
1381                     m_dragSource->deleteLater();
1382                     m_dragSource = 0;
1383                 }
1384                 view->hide();
1385                 m_dragSource = view;
1386             } else {
1387                 view->deleteLater();
1388                 view = 0;
1389             }
1390         }
1391
1392         m_iconsView = 0;
1393         m_detailsView = 0;
1394     }
1395 }
1396
1397 void DolphinView::ViewAccessor::prepareUrlChange(const KUrl& url)
1398 {
1399     if (m_columnsContainer != 0) {
1400         m_columnsContainer->showColumn(url);
1401     }
1402 }
1403
1404 QAbstractItemView* DolphinView::ViewAccessor::itemView() const
1405 {
1406     if (m_iconsView != 0) {
1407         return m_iconsView;
1408     }
1409
1410     if (m_detailsView != 0) {
1411         return m_detailsView;
1412     }
1413
1414     if (m_columnsContainer != 0) {
1415         return m_columnsContainer->activeColumn();
1416     }
1417
1418     return 0;
1419 }
1420
1421 KFileItemDelegate* DolphinView::ViewAccessor::itemDelegate() const
1422 {
1423     return static_cast<KFileItemDelegate*>(itemView()->itemDelegate());
1424 }
1425
1426 QWidget* DolphinView::ViewAccessor::layoutTarget() const
1427 {
1428     if (m_columnsContainer != 0) {
1429         return m_columnsContainer;
1430     }
1431     return itemView();
1432 }
1433
1434 void DolphinView::ViewAccessor::setRootUrl(const KUrl& rootUrl)
1435 {
1436     m_rootUrl = rootUrl;
1437 }
1438
1439 KUrl DolphinView::ViewAccessor::rootUrl() const
1440 {
1441     return (m_columnsContainer != 0) ? m_columnsContainer->rootUrl() : m_rootUrl;
1442 }
1443
1444 bool DolphinView::ViewAccessor::supportsCategorizedSorting() const
1445 {
1446     return m_iconsView != 0;
1447 }
1448
1449 bool DolphinView::ViewAccessor::itemsExpandable() const
1450 {
1451     return (m_detailsView != 0) && m_detailsView->itemsExpandable();
1452 }
1453
1454 QSet<KUrl> DolphinView::ViewAccessor::expandedUrls() const
1455 {
1456     if (m_detailsView != 0) {
1457         return m_detailsView->expandedUrls();
1458     }
1459
1460     return QSet<KUrl>();
1461 }
1462
1463 const DolphinDetailsViewExpander* DolphinView::ViewAccessor::setExpandedUrls(const QSet<KUrl>& urlsToExpand)
1464 {
1465     if ((m_detailsView != 0) && m_detailsView->itemsExpandable() && !urlsToExpand.isEmpty()) {
1466         // Check if another expander is already active and stop it if necessary.
1467         if(!m_detailsViewExpander.isNull()) {
1468             m_detailsViewExpander->stop();
1469         }
1470
1471         m_detailsViewExpander = new DolphinDetailsViewExpander(m_detailsView, urlsToExpand);
1472         return m_detailsViewExpander;
1473     }
1474     else {
1475         return 0;
1476     }
1477 }
1478
1479 bool DolphinView::ViewAccessor::reloadOnAdditionalInfoChange() const
1480 {
1481     // the details view requires no reloading of the directory, as it maps
1482     // the file item delegate info to its columns internally
1483     return m_detailsView != 0;
1484 }
1485
1486 DolphinModel* DolphinView::ViewAccessor::dirModel() const
1487 {
1488     return static_cast<DolphinModel*>(proxyModel()->sourceModel());
1489 }
1490
1491 DolphinSortFilterProxyModel* DolphinView::ViewAccessor::proxyModel() const
1492 {
1493     if (m_columnsContainer != 0) {
1494         return static_cast<DolphinSortFilterProxyModel*>(m_columnsContainer->activeColumn()->model());
1495     }
1496     return m_proxyModel;
1497 }
1498
1499 KDirLister* DolphinView::ViewAccessor::dirLister() const
1500 {
1501     return dirModel()->dirLister();
1502 }
1503
1504 void DolphinView::slotRedirection(const KUrl& oldUrl, const KUrl& newUrl)
1505 {
1506     if (oldUrl.equals(url(), KUrl::CompareWithoutTrailingSlash)) {
1507         emit redirection(oldUrl, newUrl);
1508         m_viewModeController->redirectToUrl(newUrl); // #186947
1509     }
1510 }
1511
1512 void DolphinView::restoreContentsPosition()
1513 {
1514     if (!m_restoredContentsPosition.isNull()) {
1515         const int x = m_restoredContentsPosition.x();
1516         const int y = m_restoredContentsPosition.y();
1517         m_restoredContentsPosition = QPoint();
1518
1519         QAbstractItemView* view = m_viewAccessor.itemView();
1520         Q_ASSERT(view != 0);
1521         view->horizontalScrollBar()->setValue(x);
1522         view->verticalScrollBar()->setValue(y);
1523     }
1524 }
1525
1526 #include "dolphinview.moc"