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
 532     // When changing the URL there is no need to keep the version
 533     // data of the previous URL.
 534     m_viewAccessor.dirModel()->clearVersionData();
 535
 536     // Reconnect to the (probably) new selection model and directory lister
 537     connectViewAccessor();
 538     loadDirectory(url);
 539
 540     if (hadSelection || hasSelection()) {
 541         emitSelectionChangedSignal();
 542     }
 543 }
 544
 545 void DolphinView::selectAll()
 546 {
 547     m_viewAccessor.itemView()->selectAll();
 548 }
 549
 550 void DolphinView::invertSelection()
 551 {
 552     QItemSelectionModel* selectionModel = m_viewAccessor.itemView()->selectionModel();
 553     const QAbstractItemModel* itemModel = selectionModel->model();
 554
 555     const QModelIndex topLeft = itemModel->index(0, 0);
 556     const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 557                                                      itemModel->columnCount() - 1);
 558
 559     const QItemSelection selection(topLeft, bottomRight);
 560     selectionModel->select(selection, QItemSelectionModel::Toggle);
 561 }
 562
 563 void DolphinView::clearSelection()
 564 {
 565     m_viewAccessor.itemView()->clearSelection();
 566 }
 567
 568 void DolphinView::renameSelectedItems()
 569 {
 570     KFileItemList items = selectedItems();
 571     const int itemCount = items.count();
 572     if (itemCount < 1) {
 573         return;
 574     }
 575
 576     if ((itemCount == 1) && DolphinSettings::instance().generalSettings()->renameInline()) {
 577         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForItem(items.first());
 578         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
 579         m_viewAccessor.itemView()->edit(proxyIndex);
 580     } else {
 581         RenameDialog* dialog = new RenameDialog(this, items);
 582         dialog->setAttribute(Qt::WA_DeleteOnClose);
 583         dialog->show();
 584         dialog->raise();
 585         dialog->activateWindow();
 586     }
 587 }
 588
 589 void DolphinView::trashSelectedItems()
 590 {
 591     const KUrl::List list = simplifiedSelectedUrls();
 592     KonqOperations::del(this, KonqOperations::TRASH, list);
 593 }
 594
 595 void DolphinView::deleteSelectedItems()
 596 {
 597     const KUrl::List list = simplifiedSelectedUrls();
 598     const bool del = KonqOperations::askDeleteConfirmation(list,
 599                      KonqOperations::DEL,
 600                      KonqOperations::DEFAULT_CONFIRMATION,
 601                      this);
 602
 603     if (del) {
 604         KIO::Job* job = KIO::del(list);
 605         connect(job, SIGNAL(result(KJob*)),
 606                 this, SLOT(slotDeleteFileFinished(KJob*)));
 607     }
 608 }
 609
 610 void DolphinView::cutSelectedItems()
 611 {
 612     QMimeData* mimeData = selectionMimeData();
 613     KonqMimeData::addIsCutSelection(mimeData, true);
 614     QApplication::clipboard()->setMimeData(mimeData);
 615 }
 616
 617 void DolphinView::copySelectedItems()
 618 {
 619     QMimeData* mimeData = selectionMimeData();
 620     QApplication::clipboard()->setMimeData(mimeData);
 621 }
 622
 623 void DolphinView::paste()
 624 {
 625     pasteToUrl(url());
 626 }
 627
 628 void DolphinView::pasteIntoFolder()
 629 {
 630     const KFileItemList items = selectedItems();
 631     if ((items.count() == 1) && items.first().isDir()) {
 632         pasteToUrl(items.first().url());
 633     }
 634 }
 635
 636 void DolphinView::setShowPreview(bool show)
 637 {
 638     if (m_showPreview == show) {
 639         return;
 640     }
 641
 642     const KUrl viewPropsUrl = rootUrl();
 643     ViewProperties props(viewPropsUrl);
 644     props.setShowPreview(show);
 645
 646     m_showPreview = show;
 647     const int oldZoomLevel = m_viewModeController->zoomLevel();
 648     emit showPreviewChanged();
 649
 650     // Enabling or disabling the preview might change the icon size of the view.
 651     // As the view does not emit a signal when the icon size has been changed,
 652     // the used zoom level of the controller must be adjusted manually:
 653     updateZoomLevel(oldZoomLevel);
 654 }
 655
 656 void DolphinView::setShowHiddenFiles(bool show)
 657 {
 658     if (m_viewAccessor.dirLister()->showingDotFiles() == show) {
 659         return;
 660     }
 661
 662     const KUrl viewPropsUrl = rootUrl();
 663     ViewProperties props(viewPropsUrl);
 664     props.setShowHiddenFiles(show);
 665
 666     m_viewAccessor.dirLister()->setShowingDotFiles(show);
 667     emit showHiddenFilesChanged();
 668 }
 669
 670 void DolphinView::setCategorizedSorting(bool categorized)
 671 {
 672     if (categorized == categorizedSorting()) {
 673         return;
 674     }
 675
 676     // setCategorizedSorting(true) may only get invoked
 677     // if the view supports categorized sorting
 678     Q_ASSERT(!categorized || supportsCategorizedSorting());
 679
 680     ViewProperties props(rootUrl());
 681     props.setCategorizedSorting(categorized);
 682     props.save();
 683
 684     m_storedCategorizedSorting = categorized;
 685     m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 686
 687     emit categorizedSortingChanged();
 688 }
 689
 690 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 691 {
 692     QWidget::mouseReleaseEvent(event);
 693     setActive(true);
 694 }
 695
 696 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 697 {
 698     switch (event->type()) {
 699     case QEvent::FocusIn:
 700         if (watched == m_viewAccessor.itemView()) {
 701             m_dolphinViewController->requestActivation();
 702         }
 703         break;
 704
 705     case QEvent::DragEnter:
 706         if (watched == m_viewAccessor.itemView()->viewport()) {
 707             setActive(true);
 708         }
 709         break;
 710
 711     case QEvent::KeyPress:
 712         if (watched == m_viewAccessor.itemView()) {
 713             // clear the selection when Escape has been pressed
 714             QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
 715             if (keyEvent->key() == Qt::Key_Escape) {
 716                 clearSelection();
 717             }
 718         }
 719         break;
 720
 721     case QEvent::Wheel:
 722         if (watched == m_viewAccessor.itemView()->viewport()) {
 723             // Ctrl+wheel events should cause icon zooming, but not if the left mouse button is pressed
 724             // (the user is probably trying to scroll during a selection in that case)
 725             QWheelEvent* wheelEvent = static_cast<QWheelEvent*>(event);
 726             if (wheelEvent->modifiers() & Qt::ControlModifier && !(wheelEvent->buttons() & Qt::LeftButton)) {
 727                 const int delta = wheelEvent->delta();
 728                 const int level = zoomLevel();
 729                 if (delta > 0) {
 730                     setZoomLevel(level + 1);
 731                 } else if (delta < 0) {
 732                     setZoomLevel(level - 1);
 733                 }
 734                 return true;
 735             }
 736         }
 737         break;
 738
 739     default:
 740         break;
 741     }
 742
 743     return QWidget::eventFilter(watched, event);
 744 }
 745
 746 void DolphinView::activate()
 747 {
 748     setActive(true);
 749 }
 750
 751 void DolphinView::triggerItem(const KFileItem& item)
 752 {
 753     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 754     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 755         // items are selected by the user, hence don't trigger the
 756         // item specified by 'index'
 757         return;
 758     }
 759
 760     // TODO: the m_isContextMenuOpen check is a workaround for Qt-issue 207192
 761     if (item.isNull() || m_isContextMenuOpen) {
 762         return;
 763     }
 764
 765     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 766 }
 767
 768 void DolphinView::slotSelectionChanged(const QItemSelection& selected, const QItemSelection& deselected)
 769 {
 770     const int count = selectedItemsCount();
 771     const bool selectionStateChanged = ((count >  0) && (selected.count() == count)) ||
 772                                        ((count == 0) && !deselected.isEmpty());
 773
 774     // If nothing has been selected before and something got selected (or if something
 775     // was selected before and now nothing is selected) the selectionChangedSignal must
 776     // be emitted asynchronously as fast as possible to update the edit-actions.
 777     m_selectionChangedTimer->setInterval(selectionStateChanged ? 0 : 300);
 778     m_selectionChangedTimer->start();
 779 }
 780
 781 void DolphinView::emitSelectionChangedSignal()
 782 {
 783     m_selectionChangedTimer->stop();
 784     emit selectionChanged(selectedItems());
 785 }
 786
 787 void DolphinView::openContextMenu(const QPoint& pos,
 788                                   const QList<QAction*>& customActions)
 789 {
 790     KFileItem item;
 791     const QModelIndex index = m_viewAccessor.itemView()->indexAt(pos);
 792     if (index.isValid() && (index.column() == DolphinModel::Name)) {
 793         const QModelIndex dolphinModelIndex = m_viewAccessor.proxyModel()->mapToSource(index);
 794         item = m_viewAccessor.dirModel()->itemForIndex(dolphinModelIndex);
 795     }
 796
 797     m_isContextMenuOpen = true; // TODO: workaround for Qt-issue 207192
 798     emit requestContextMenu(item, url(), customActions);
 799     m_isContextMenuOpen = false;
 800 }
 801
 802 void DolphinView::dropUrls(const KFileItem& destItem,
 803                            const KUrl& destPath,
 804                            QDropEvent* event)
 805 {
 806     addNewFileNames(event->mimeData());
 807     DragAndDropHelper::instance().dropUrls(destItem, destPath, event, this);
 808 }
 809
 810 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 811 {
 812     ViewProperties props(rootUrl());
 813     props.setSorting(sorting);
 814
 815     m_viewAccessor.proxyModel()->setSorting(sorting);
 816
 817     emit sortingChanged(sorting);
 818 }
 819
 820 void DolphinView::updateSortOrder(Qt::SortOrder order)
 821 {
 822     ViewProperties props(rootUrl());
 823     props.setSortOrder(order);
 824
 825     m_viewAccessor.proxyModel()->setSortOrder(order);
 826
 827     emit sortOrderChanged(order);
 828 }
 829
 830 void DolphinView::updateSortFoldersFirst(bool foldersFirst)
 831 {
 832     ViewProperties props(rootUrl());
 833     props.setSortFoldersFirst(foldersFirst);
 834
 835     m_viewAccessor.proxyModel()->setSortFoldersFirst(foldersFirst);
 836
 837     emit sortFoldersFirstChanged(foldersFirst);
 838 }
 839
 840 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 841 {
 842     ViewProperties props(rootUrl());
 843     props.setAdditionalInfo(info);
 844     props.save();
 845
 846     m_viewAccessor.itemDelegate()->setShowInformation(info);
 847
 848     emit additionalInfoChanged();
 849 }
 850
 851 void DolphinView::updateAdditionalInfoActions(KActionCollection* collection)
 852 {
 853     const AdditionalInfoAccessor& infoAccessor = AdditionalInfoAccessor::instance();
 854
 855     const KFileItemDelegate::InformationList checkedInfo = m_viewAccessor.itemDelegate()->showInformation();
 856     const KFileItemDelegate::InformationList infoKeys = infoAccessor.keys();
 857
 858     const bool enable = (m_mode == DolphinView::DetailsView) ||
 859                         (m_mode == DolphinView::IconsView);
 860
 861     foreach (const KFileItemDelegate::Information& info, infoKeys) {
 862         const QString name = infoAccessor.actionCollectionName(info, AdditionalInfoAccessor::AdditionalInfoType);
 863         QAction* action = collection->action(name);
 864         Q_ASSERT(action != 0);
 865         action->setEnabled(enable);
 866         action->setChecked(checkedInfo.contains(info));
 867     }
 868 }
 869
 870 QPair<bool, QString> DolphinView::pasteInfo() const
 871 {
 872     return KonqOperations::pasteInfo(url());
 873 }
 874
 875 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
 876 {
 877     m_tabsForFiles = tabsForFiles;
 878 }
 879
 880 bool DolphinView::isTabsForFilesEnabled() const
 881 {
 882     return m_tabsForFiles;
 883 }
 884
 885 bool DolphinView::itemsExpandable() const
 886 {
 887     return m_viewAccessor.itemsExpandable();
 888 }
 889
 890 void DolphinView::restoreState(QDataStream& stream)
 891 {
 892     // Restore the URL of the current item that had the keyboard focus
 893     stream >> m_activeItemUrl;
 894
 895     // Restore the root URL
 896     KUrl rootUrl;
 897     stream >> rootUrl;
 898     m_viewAccessor.setRootUrl(rootUrl);
 899
 900     // Restore the view position
 901     stream >> m_restoredContentsPosition;
 902
 903     // Restore expanded folders (only relevant for the details view - will be ignored by the view in other view modes)
 904     QSet<KUrl> urlsToExpand;
 905     stream >> urlsToExpand;
 906     const DolphinDetailsViewExpander* expander = m_viewAccessor.setExpandedUrls(urlsToExpand);
 907     if (expander != 0) {
 908         m_expanderActive = true;
 909         connect (expander, SIGNAL(completed()), this, SLOT(slotLoadingCompleted()));
 910     }
 911     else {
 912         m_expanderActive = false;
 913     }
 914 }
 915
 916 void DolphinView::saveState(QDataStream& stream)
 917 {
 918     // Save the URL of the current item that has the keyboard focus
 919     KFileItem currentItem;
 920     const QAbstractItemView* view = m_viewAccessor.itemView();
 921
 922     if (view != 0) {
 923         const QModelIndex proxyIndex = view->currentIndex();
 924         const QModelIndex dirModelIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
 925         currentItem = m_viewAccessor.dirModel()->itemForIndex(dirModelIndex);
 926     }
 927
 928     KUrl currentItemUrl;
 929     if (!currentItem.isNull()) {
 930         currentItemUrl = currentItem.url();
 931     }
 932
 933     stream << currentItemUrl;
 934
 935     // Save the root URL
 936     stream << m_viewAccessor.rootUrl();
 937
 938     // Save view position
 939     const int x = view->horizontalScrollBar()->value();
 940     const int y = view->verticalScrollBar()->value();
 941     stream << QPoint(x, y);
 942
 943     // Save expanded folders (only relevant for the details view - the set will be empty in other view modes)
 944     stream << m_viewAccessor.expandedUrls();
 945 }
 946
 947 bool DolphinView::hasSelection() const
 948 {
 949     const QAbstractItemView* view = m_viewAccessor.itemView();
 950     return (view != 0) && view->selectionModel()->hasSelection();
 951 }
 952
 953 void DolphinView::observeCreatedItem(const KUrl& url)
 954 {
 955     m_createdItemUrl = url;
 956     connect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
 957             this, SLOT(selectAndScrollToCreatedItem()));
 958 }
 959
 960 void DolphinView::selectAndScrollToCreatedItem()
 961 {
 962     const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_createdItemUrl);
 963     if (dirIndex.isValid()) {
 964         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
 965         m_viewAccessor.itemView()->setCurrentIndex(proxyIndex);
 966     }
 967
 968     disconnect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
 969                this, SLOT(selectAndScrollToCreatedItem()));
 970     m_createdItemUrl = KUrl();
 971 }
 972
 973 void DolphinView::showHoverInformation(const KFileItem& item)
 974 {
 975     emit requestItemInfo(item);
 976 }
 977
 978 void DolphinView::clearHoverInformation()
 979 {
 980     emit requestItemInfo(KFileItem());
 981 }
 982
 983 void DolphinView::slotDeleteFileFinished(KJob* job)
 984 {
 985     if (job->error() == 0) {
 986         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
 987     } else if (job->error() != KIO::ERR_USER_CANCELED) {
 988         emit errorMessage(job->errorString());
 989     }
 990 }
 991
 992 void DolphinView::slotDirListerCompleted()
 993 {
 994     if (!m_expanderActive) {
 995         slotLoadingCompleted();
 996     }
 997
 998     if (!m_newFileNames.isEmpty()) {
 999         // select all newly added items created by a paste operation or
1000         // a drag & drop operation, and clear the previous selection
1001         m_viewAccessor.itemView()->clearSelection();
1002         const int rowCount = m_viewAccessor.proxyModel()->rowCount();
1003         QItemSelection selection;
1004         for (int row = 0; row < rowCount; ++row) {
1005             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->index(row, 0);
1006             const QModelIndex dirIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
1007             const KUrl url = m_viewAccessor.dirModel()->itemForIndex(dirIndex).url();
1008             if (m_newFileNames.contains(url.fileName())) {
1009                 selection.merge(QItemSelection(proxyIndex, proxyIndex), QItemSelectionModel::Select);
1010             }
1011         }
1012         m_viewAccessor.itemView()->selectionModel()->select(selection, QItemSelectionModel::Select);
1013
1014         m_newFileNames.clear();
1015     }
1016 }
1017
1018 void DolphinView::slotLoadingCompleted()
1019 {
1020     m_expanderActive = false;
1021
1022     if (!m_activeItemUrl.isEmpty()) {
1023         // assure that the current item remains visible
1024         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_activeItemUrl);
1025         if (dirIndex.isValid()) {
1026             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1027             QAbstractItemView* view = m_viewAccessor.itemView();
1028             const bool clearSelection = !hasSelection();
1029             view->setCurrentIndex(proxyIndex);
1030             if (clearSelection) {
1031                 view->clearSelection();
1032             }
1033             m_activeItemUrl.clear();
1034         }
1035     }
1036
1037     if (!m_selectedItems.isEmpty()) {
1038         const KUrl& baseUrl = url();
1039         KUrl url;
1040         QItemSelection newSelection;
1041         foreach(const KFileItem& item, m_selectedItems) {
1042             url = item.url().upUrl();
1043             if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
1044                 QModelIndex index = m_viewAccessor.proxyModel()->mapFromSource(m_viewAccessor.dirModel()->indexForItem(item));
1045                 newSelection.select(index, index);
1046             }
1047         }
1048         m_viewAccessor.itemView()->selectionModel()->select(newSelection,
1049                                                             QItemSelectionModel::ClearAndSelect
1050                                                             | QItemSelectionModel::Current);
1051         m_selectedItems.clear();
1052     }
1053
1054     // Restore the contents position. This has to be done using a Qt::QueuedConnection
1055     // because the view might not be in its final state yet.
1056     QMetaObject::invokeMethod(this, "restoreContentsPosition", Qt::QueuedConnection);
1057
1058     emit finishedPathLoading(url());
1059 }
1060
1061 void DolphinView::slotRefreshItems()
1062 {
1063     if (m_assureVisibleCurrentIndex) {
1064         m_assureVisibleCurrentIndex = false;
1065         m_viewAccessor.itemView()->scrollTo(m_viewAccessor.itemView()->currentIndex());
1066     }
1067 }
1068
1069 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1070 {
1071     if (!url.isValid()) {
1072         const QString location(url.pathOrUrl());
1073         if (location.isEmpty()) {
1074             emit errorMessage(i18nc("@info:status", "The location is empty."));
1075         } else {
1076             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1077         }
1078         return;
1079     }
1080
1081     KDirLister* dirLister = m_viewAccessor.dirLister();
1082     dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
1083 }
1084
1085 void DolphinView::applyViewProperties()
1086 {
1087     const ViewProperties props(rootUrl());
1088
1089     const Mode mode = props.viewMode();
1090     if (m_mode != mode) {
1091         const int oldZoomLevel = m_viewModeController->zoomLevel();
1092
1093         m_mode = mode;
1094         createView();
1095         emit modeChanged();
1096
1097         updateZoomLevel(oldZoomLevel);
1098     }
1099     if (m_viewAccessor.itemView() == 0) {
1100         createView();
1101     }
1102
1103     Q_ASSERT(m_viewAccessor.itemView() != 0);
1104     Q_ASSERT(m_viewAccessor.itemDelegate() != 0);
1105
1106     const bool showHiddenFiles = props.showHiddenFiles();
1107     if (showHiddenFiles != m_viewAccessor.dirLister()->showingDotFiles()) {
1108         m_viewAccessor.dirLister()->setShowingDotFiles(showHiddenFiles);
1109         emit showHiddenFilesChanged();
1110     }
1111
1112     m_storedCategorizedSorting = props.categorizedSorting();
1113     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1114     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
1115         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
1116         emit categorizedSortingChanged();
1117     }
1118
1119     const DolphinView::Sorting sorting = props.sorting();
1120     if (sorting != m_viewAccessor.proxyModel()->sorting()) {
1121         m_viewAccessor.proxyModel()->setSorting(sorting);
1122         emit sortingChanged(sorting);
1123     }
1124
1125     const Qt::SortOrder sortOrder = props.sortOrder();
1126     if (sortOrder != m_viewAccessor.proxyModel()->sortOrder()) {
1127         m_viewAccessor.proxyModel()->setSortOrder(sortOrder);
1128         emit sortOrderChanged(sortOrder);
1129     }
1130
1131     const bool sortFoldersFirst = props.sortFoldersFirst();
1132     if (sortFoldersFirst != m_viewAccessor.proxyModel()->sortFoldersFirst()) {
1133         m_viewAccessor.proxyModel()->setSortFoldersFirst(sortFoldersFirst);
1134         emit sortFoldersFirstChanged(sortFoldersFirst);
1135     }
1136
1137     KFileItemDelegate::InformationList info = props.additionalInfo();
1138     if (info != m_viewAccessor.itemDelegate()->showInformation()) {
1139         m_viewAccessor.itemDelegate()->setShowInformation(info);
1140         emit additionalInfoChanged();
1141     }
1142
1143     const bool showPreview = props.showPreview();
1144     if (showPreview != m_showPreview) {
1145         m_showPreview = showPreview;
1146         const int oldZoomLevel = m_viewModeController->zoomLevel();
1147         emit showPreviewChanged();
1148
1149         // Enabling or disabling the preview might change the icon size of the view.
1150         // As the view does not emit a signal when the icon size has been changed,
1151         // the used zoom level of the controller must be adjusted manually:
1152         updateZoomLevel(oldZoomLevel);
1153     }
1154 }
1155
1156 void DolphinView::createView()
1157 {
1158     deleteView();
1159
1160     Q_ASSERT(m_viewAccessor.itemView() == 0);
1161     Q_ASSERT(m_dolphinViewController->itemView() == 0);
1162     m_viewAccessor.createView(this, m_dolphinViewController, m_viewModeController, m_mode);
1163
1164     QAbstractItemView* view = m_viewAccessor.itemView();
1165     Q_ASSERT(view != 0);
1166     view->installEventFilter(this);
1167     view->viewport()->installEventFilter(this);
1168
1169     m_dolphinViewController->setItemView(view);
1170
1171     const int zoomLevel = ZoomLevelInfo::zoomLevelForIconSize(view->iconSize());
1172     m_viewModeController->setZoomLevel(zoomLevel);
1173
1174     connectViewAccessor();
1175
1176     setFocusProxy(m_viewAccessor.layoutTarget());
1177     m_topLayout->insertWidget(1, m_viewAccessor.layoutTarget());
1178 }
1179
1180 void DolphinView::deleteView()
1181 {
1182     QAbstractItemView* view = m_viewAccessor.itemView();
1183     Q_ASSERT((m_dolphinViewController->itemView() == 0) || (m_dolphinViewController->itemView() == view));
1184     m_dolphinViewController->setItemView(0);
1185
1186     if (view != 0) {
1187         disconnectViewAccessor();
1188
1189         // It's important to set the keyboard focus to the parent
1190         // before deleting the view: Otherwise when having a split
1191         // view the other view will get the focus and will request
1192         // an activation (see DolphinView::eventFilter()).
1193         setFocusProxy(0);
1194         setFocus();
1195
1196         m_viewModeController->disconnect(view);
1197
1198         m_viewAccessor.deleteView();
1199     }
1200 }
1201
1202 void DolphinView::pasteToUrl(const KUrl& url)
1203 {
1204     addNewFileNames(QApplication::clipboard()->mimeData());
1205     KonqOperations::doPaste(this, url);
1206 }
1207
1208 void DolphinView::updateZoomLevel(int oldZoomLevel)
1209 {
1210     const int newZoomLevel = ZoomLevelInfo::zoomLevelForIconSize(m_viewAccessor.itemView()->iconSize());
1211     if (oldZoomLevel != newZoomLevel) {
1212         m_viewModeController->setZoomLevel(newZoomLevel);
1213         emit zoomLevelChanged(newZoomLevel);
1214     }
1215 }
1216
1217 KUrl::List DolphinView::simplifiedSelectedUrls() const
1218 {
1219     KUrl::List urls;
1220
1221     const KFileItemList items = selectedItems();
1222     foreach (const KFileItem &item, items) {
1223         urls.append(item.url());
1224     }
1225
1226
1227     if (itemsExpandable()) {
1228         urls = KDirModel::simplifiedUrlList(urls);
1229     }
1230
1231     return urls;
1232 }
1233
1234 QMimeData* DolphinView::selectionMimeData() const
1235 {
1236     const QAbstractItemView* view = m_viewAccessor.itemView();
1237     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
1238     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
1239     return m_viewAccessor.dirModel()->mimeData(selection.indexes());
1240 }
1241
1242 void DolphinView::addNewFileNames(const QMimeData* mimeData)
1243 {
1244     const KUrl::List urls = KUrl::List::fromMimeData(mimeData);
1245     foreach (const KUrl& url, urls) {
1246         m_newFileNames.insert(url.fileName());
1247     }
1248 }
1249
1250 QItemSelection DolphinView::childrenMatchingPattern(const QModelIndex& parent, const QRegExp& pattern) const
1251 {
1252     QItemSelection matchingIndexes;
1253     const DolphinSortFilterProxyModel* proxyModel = m_viewAccessor.proxyModel();
1254     const DolphinModel* dolphinModel = m_viewAccessor.dirModel();
1255
1256     const int rowCount = proxyModel->rowCount(parent);
1257
1258     for (int row = 0; row < rowCount; ++row) {
1259         QModelIndex index = proxyModel->index(row, 0, parent);
1260         QModelIndex sourceIndex = proxyModel->mapToSource(index);
1261
1262         if (sourceIndex.isValid() && pattern.exactMatch(dolphinModel->data(sourceIndex).toString())) {
1263             matchingIndexes += QItemSelectionRange(index);
1264         }
1265
1266         if (proxyModel->hasChildren(index)) {
1267             matchingIndexes += childrenMatchingPattern(index, pattern);
1268         }
1269     }
1270
1271     return matchingIndexes;
1272 }
1273
1274 void DolphinView::connectViewAccessor()
1275 {
1276     KDirLister* dirLister = m_viewAccessor.dirLister();
1277     connect(dirLister, SIGNAL(redirection(KUrl,KUrl)),
1278             this, SLOT(slotRedirection(KUrl,KUrl)));
1279     connect(dirLister, SIGNAL(started(KUrl)),
1280             this, SIGNAL(startedPathLoading(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(started(KUrl)),
1297                this, SIGNAL(startedPathLoading(KUrl)));
1298     disconnect(dirLister, SIGNAL(completed()),
1299                this, SLOT(slotDirListerCompleted()));
1300     disconnect(dirLister, SIGNAL(refreshItems(const QList<QPair<KFileItem,KFileItem>>&)),
1301                this, SLOT(slotRefreshItems()));
1302
1303     QAbstractItemView* view = m_viewAccessor.itemView();
1304     disconnect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
1305                this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
1306 }
1307
1308 DolphinView::ViewAccessor::ViewAccessor(DolphinSortFilterProxyModel* proxyModel) :
1309     m_rootUrl(),
1310     m_iconsView(0),
1311     m_detailsView(0),
1312     m_columnsContainer(0),
1313     m_proxyModel(proxyModel),
1314     m_dragSource(0)
1315 {
1316 }
1317
1318 DolphinView::ViewAccessor::~ViewAccessor()
1319 {
1320     delete m_dragSource;
1321     m_dragSource = 0;
1322 }
1323
1324 void DolphinView::ViewAccessor::createView(QWidget* parent,
1325                                            DolphinViewController* dolphinViewController,
1326                                            const ViewModeController* viewModeController,
1327                                            Mode mode)
1328 {
1329     Q_ASSERT(itemView() == 0);
1330
1331     switch (mode) {
1332     case IconsView:
1333         m_iconsView = new DolphinIconsView(parent,
1334                                            dolphinViewController,
1335                                            viewModeController,
1336                                            m_proxyModel);
1337         break;
1338
1339     case DetailsView:
1340         m_detailsView = new DolphinDetailsView(parent,
1341                                                dolphinViewController,
1342                                                viewModeController,
1343                                                m_proxyModel);
1344         break;
1345
1346     case ColumnView:
1347         m_columnsContainer = new DolphinColumnViewContainer(parent,
1348                                                             dolphinViewController,
1349                                                             viewModeController);
1350         if (!m_rootUrl.isEmpty() && m_rootUrl.isParentOf(viewModeController->url())) {
1351             // The column-view must show several columns starting with m_rootUrl as
1352             // first column and viewModeController->url() as last column.
1353             m_columnsContainer->showColumn(m_rootUrl);
1354             m_columnsContainer->showColumn(viewModeController->url());
1355         }
1356         break;
1357
1358     default:
1359         Q_ASSERT(false);
1360     }
1361 }
1362
1363 void DolphinView::ViewAccessor::deleteView()
1364 {
1365     if (m_columnsContainer != 0) {
1366         m_columnsContainer->close();
1367         m_columnsContainer->disconnect();
1368         m_columnsContainer->deleteLater();
1369         m_columnsContainer = 0;
1370     } else {
1371         QAbstractItemView* view = itemView();
1372         if (view != 0) {
1373             view->close();
1374             view->disconnect();
1375
1376             if (DragAndDropHelper::instance().isDragSource(view)) {
1377                 // The view is a drag source (the feature "Open folders
1378                 // during drag operations" is used). Deleting the view
1379                 // during an ongoing drag operation is not allowed, so
1380                 // this will postponed.
1381                 if (m_dragSource != 0) {
1382                     // the old stored view is obviously not the drag source anymore
1383                     m_dragSource->deleteLater();
1384                     m_dragSource = 0;
1385                 }
1386                 view->hide();
1387                 m_dragSource = view;
1388             } else {
1389                 view->deleteLater();
1390                 view = 0;
1391             }
1392         }
1393
1394         m_iconsView = 0;
1395         m_detailsView = 0;
1396     }
1397 }
1398
1399 void DolphinView::ViewAccessor::prepareUrlChange(const KUrl& url)
1400 {
1401     if (m_columnsContainer != 0) {
1402         m_columnsContainer->showColumn(url);
1403     }
1404 }
1405
1406 QAbstractItemView* DolphinView::ViewAccessor::itemView() const
1407 {
1408     if (m_iconsView != 0) {
1409         return m_iconsView;
1410     }
1411
1412     if (m_detailsView != 0) {
1413         return m_detailsView;
1414     }
1415
1416     if (m_columnsContainer != 0) {
1417         return m_columnsContainer->activeColumn();
1418     }
1419
1420     return 0;
1421 }
1422
1423 KFileItemDelegate* DolphinView::ViewAccessor::itemDelegate() const
1424 {
1425     return static_cast<KFileItemDelegate*>(itemView()->itemDelegate());
1426 }
1427
1428 QWidget* DolphinView::ViewAccessor::layoutTarget() const
1429 {
1430     if (m_columnsContainer != 0) {
1431         return m_columnsContainer;
1432     }
1433     return itemView();
1434 }
1435
1436 void DolphinView::ViewAccessor::setRootUrl(const KUrl& rootUrl)
1437 {
1438     m_rootUrl = rootUrl;
1439 }
1440
1441 KUrl DolphinView::ViewAccessor::rootUrl() const
1442 {
1443     return (m_columnsContainer != 0) ? m_columnsContainer->rootUrl() : m_rootUrl;
1444 }
1445
1446 bool DolphinView::ViewAccessor::supportsCategorizedSorting() const
1447 {
1448     return m_iconsView != 0;
1449 }
1450
1451 bool DolphinView::ViewAccessor::itemsExpandable() const
1452 {
1453     return (m_detailsView != 0) && m_detailsView->itemsExpandable();
1454 }
1455
1456 QSet<KUrl> DolphinView::ViewAccessor::expandedUrls() const
1457 {
1458     if (m_detailsView != 0) {
1459         return m_detailsView->expandedUrls();
1460     }
1461
1462     return QSet<KUrl>();
1463 }
1464
1465 const DolphinDetailsViewExpander* DolphinView::ViewAccessor::setExpandedUrls(const QSet<KUrl>& urlsToExpand)
1466 {
1467     if ((m_detailsView != 0) && m_detailsView->itemsExpandable() && !urlsToExpand.isEmpty()) {
1468         // Check if another expander is already active and stop it if necessary.
1469         if(!m_detailsViewExpander.isNull()) {
1470             m_detailsViewExpander->stop();
1471         }
1472
1473         m_detailsViewExpander = new DolphinDetailsViewExpander(m_detailsView, urlsToExpand);
1474         return m_detailsViewExpander;
1475     }
1476     else {
1477         return 0;
1478     }
1479 }
1480
1481 bool DolphinView::ViewAccessor::reloadOnAdditionalInfoChange() const
1482 {
1483     // the details view requires no reloading of the directory, as it maps
1484     // the file item delegate info to its columns internally
1485     return m_detailsView != 0;
1486 }
1487
1488 DolphinModel* DolphinView::ViewAccessor::dirModel() const
1489 {
1490     return static_cast<DolphinModel*>(proxyModel()->sourceModel());
1491 }
1492
1493 DolphinSortFilterProxyModel* DolphinView::ViewAccessor::proxyModel() const
1494 {
1495     if (m_columnsContainer != 0) {
1496         return static_cast<DolphinSortFilterProxyModel*>(m_columnsContainer->activeColumn()->model());
1497     }
1498     return m_proxyModel;
1499 }
1500
1501 KDirLister* DolphinView::ViewAccessor::dirLister() const
1502 {
1503     return dirModel()->dirLister();
1504 }
1505
1506 void DolphinView::slotRedirection(const KUrl& oldUrl, const KUrl& newUrl)
1507 {
1508     if (oldUrl.equals(url(), KUrl::CompareWithoutTrailingSlash)) {
1509         emit redirection(oldUrl, newUrl);
1510         m_viewModeController->redirectToUrl(newUrl); // #186947
1511     }
1512 }
1513
1514 void DolphinView::restoreContentsPosition()
1515 {
1516     if (!m_restoredContentsPosition.isNull()) {
1517         const int x = m_restoredContentsPosition.x();
1518         const int y = m_restoredContentsPosition.y();
1519         m_restoredContentsPosition = QPoint();
1520
1521         QAbstractItemView* view = m_viewAccessor.itemView();
1522         Q_ASSERT(view != 0);
1523         view->horizontalScrollBar()->setValue(x);
1524         view->verticalScrollBar()->setValue(y);
1525     }
1526 }
1527
1528 #include "dolphinview.moc"