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>
  33 #include <KColorScheme>
  34 #include <KDirLister>
  35 #include <KIconEffect>
  36 #include <KFileItem>
  37 #include <KFileItemListProperties>
  38 #include <KLocale>
  39 #include <KIO/DeleteJob>
  40 #include <KIO/NetAccess>
  41 #include <KIO/PreviewJob>
  42 #include <KJob>
  43 #include <KMenu>
  44 #include <KMessageBox>
  45 #include <konq_fileitemcapabilities.h>
  46 #include <konq_operations.h>
  47 #include <konqmimedata.h>
  48 #include <KToggleAction>
  49 #include <KUrl>
  50
  51 #include "additionalinfoaccessor.h"
  52 #include "dolphindirlister.h"
  53 #include "dolphinmodel.h"
  54 #include "dolphincolumnviewcontainer.h"
  55 #include "dolphinviewcontroller.h"
  56 #include "dolphindetailsview.h"
  57 #include "dolphinfileitemdelegate.h"
  58 #include "dolphinnewfilemenuobserver.h"
  59 #include "dolphinsortfilterproxymodel.h"
  60 #include "dolphin_detailsmodesettings.h"
  61 #include "dolphiniconsview.h"
  62 #include "dolphin_generalsettings.h"
  63 #include "draganddrophelper.h"
  64 #include "renamedialog.h"
  65 #include "settings/dolphinsettings.h"
  66 #include "viewmodecontroller.h"
  67 #include "viewproperties.h"
  68 #include "zoomlevelinfo.h"
  69 #include "dolphindetailsviewexpander.h"
  70
  71 DolphinView::DolphinView(const KUrl& url, QWidget* parent) :
  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_expanderActive(false),
  80     m_isFolderWritable(true),
  81     m_mode(DolphinView::IconsView),
  82     m_topLayout(0),
  83     m_dolphinViewController(0),
  84     m_viewModeController(0),
  85     m_viewAccessor(),
  86     m_selectionChangedTimer(0),
  87     m_activeItemUrl(),
  88     m_restoredContentsPosition(),
  89     m_createdItemUrl(),
  90     m_selectedItems(),
  91     m_newFileNames()
  92 {
  93     m_topLayout = new QVBoxLayout(this);
  94     m_topLayout->setSpacing(0);
  95     m_topLayout->setMargin(0);
  96
  97     m_dolphinViewController = new DolphinViewController(this);
  98
  99     m_viewModeController = new ViewModeController(this);
 100     m_viewModeController->setUrl(url);
 101
 102     connect(m_viewModeController, SIGNAL(urlChanged(const KUrl&)),
 103             this, SIGNAL(urlChanged(const KUrl&)));
 104
 105     connect(m_dolphinViewController, SIGNAL(requestContextMenu(const QPoint&, const QList<QAction*>&)),
 106             this, SLOT(openContextMenu(const QPoint&, const QList<QAction*>&)));
 107     connect(m_dolphinViewController, SIGNAL(urlsDropped(const KFileItem&, const KUrl&, QDropEvent*)),
 108             this, SLOT(dropUrls(const KFileItem&, const KUrl&, QDropEvent*)));
 109     connect(m_dolphinViewController, SIGNAL(sortingChanged(DolphinView::Sorting)),
 110             this, SLOT(updateSorting(DolphinView::Sorting)));
 111     connect(m_dolphinViewController, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 112             this, SLOT(updateSortOrder(Qt::SortOrder)));
 113     connect(m_dolphinViewController, SIGNAL(sortFoldersFirstChanged(bool)),
 114             this, SLOT(updateSortFoldersFirst(bool)));
 115     connect(m_dolphinViewController, SIGNAL(additionalInfoChanged(const KFileItemDelegate::InformationList&)),
 116             this, SLOT(updateAdditionalInfo(const KFileItemDelegate::InformationList&)));
 117     connect(m_dolphinViewController, SIGNAL(itemTriggered(const KFileItem&)),
 118             this, SLOT(triggerItem(const KFileItem&)));
 119     connect(m_dolphinViewController, SIGNAL(tabRequested(const KUrl&)),
 120             this, SIGNAL(tabRequested(const KUrl&)));
 121     connect(m_dolphinViewController, SIGNAL(activated()),
 122             this, SLOT(activate()));
 123     connect(m_dolphinViewController, SIGNAL(itemEntered(const KFileItem&)),
 124             this, SLOT(showHoverInformation(const KFileItem&)));
 125     connect(m_dolphinViewController, SIGNAL(viewportEntered()),
 126             this, SLOT(clearHoverInformation()));
 127     connect(m_dolphinViewController, SIGNAL(urlChangeRequested(KUrl)),
 128             this, SLOT(slotUrlChangeRequested(KUrl)));
 129
 130     // When a new item has been created by the "Create New..." menu, the item should
 131     // get selected and it must be assured that the item will get visible. As the
 132     // creation is done asynchronously, several signals must be checked:
 133     connect(&DolphinNewFileMenuObserver::instance(), SIGNAL(itemCreated(const KUrl&)),
 134             this, SLOT(observeCreatedItem(const KUrl&)));
 135
 136     m_selectionChangedTimer = new QTimer(this);
 137     m_selectionChangedTimer->setSingleShot(true);
 138     m_selectionChangedTimer->setInterval(300);
 139     connect(m_selectionChangedTimer, SIGNAL(timeout()),
 140             this, SLOT(emitSelectionChangedSignal()));
 141
 142     applyViewProperties();
 143     m_topLayout->addWidget(m_viewAccessor.layoutTarget());
 144 }
 145
 146 DolphinView::~DolphinView()
 147 {
 148 }
 149
 150 KUrl DolphinView::url() const
 151 {
 152     return m_viewModeController->url();
 153 }
 154
 155 KUrl DolphinView::rootUrl() const
 156 {
 157     const KUrl viewUrl = url();
 158     const KUrl root = m_viewAccessor.rootUrl();
 159     if (root.isEmpty() || !root.isParentOf(viewUrl)) {
 160         return viewUrl;
 161     }
 162     return root;
 163 }
 164
 165 void DolphinView::setActive(bool active)
 166 {
 167     if (active == m_active) {
 168         return;
 169     }
 170
 171     m_active = active;
 172
 173     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 174     if (!active) {
 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         emitSelectionChangedSignal();
 189         emit writeStateChanged(m_isFolderWritable);
 190     }
 191
 192     m_viewModeController->indicateActivationChange(active);
 193 }
 194
 195 bool DolphinView::isActive() const
 196 {
 197     return m_active;
 198 }
 199
 200 void DolphinView::setMode(Mode mode)
 201 {
 202     if (mode == m_mode) {
 203         return; // the wished mode is already set
 204     }
 205
 206     const int oldZoomLevel = m_viewModeController->zoomLevel();
 207     m_mode = mode;
 208
 209     // remember the currently selected items, so that they will
 210     // be restored after reloading the directory
 211     m_selectedItems = selectedItems();
 212
 213     const bool hasFocus = m_viewAccessor.itemView()->hasFocus();
 214     deleteView();
 215
 216     const KUrl viewPropsUrl = rootUrl();
 217     ViewProperties props(viewPropsUrl);
 218     props.setViewMode(m_mode);
 219     createView();
 220
 221     if (hasFocus) {
 222         m_viewAccessor.itemView()->setFocus();
 223     }
 224
 225     // the file item delegate has been recreated, apply the current
 226     // additional information manually
 227     const KFileItemDelegate::InformationList infoList = props.additionalInfo();
 228     m_viewAccessor.itemDelegate()->setShowInformation(infoList);
 229     emit additionalInfoChanged();
 230
 231     // Not all view modes support categorized sorting. Adjust the sorting model
 232     // if changing the view mode results in a change of the categorized sorting
 233     // capabilities.
 234     m_storedCategorizedSorting = props.categorizedSorting();
 235     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 236     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
 237         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 238         emit categorizedSortingChanged();
 239     }
 240
 241     emit modeChanged();
 242
 243     updateZoomLevel(oldZoomLevel);
 244     loadDirectory(viewPropsUrl);
 245 }
 246
 247 DolphinView::Mode DolphinView::mode() const
 248 {
 249     return m_mode;
 250 }
 251
 252 bool DolphinView::showPreview() const
 253 {
 254     return m_showPreview;
 255 }
 256
 257 bool DolphinView::showHiddenFiles() const
 258 {
 259     return m_viewAccessor.dirLister()->showingDotFiles();
 260 }
 261
 262 bool DolphinView::categorizedSorting() const
 263 {
 264     // If all view modes would support categorized sorting, returning
 265     // m_viewAccessor.proxyModel()->isCategorizedModel() would be the way to go. As
 266     // currently only the icons view supports caterized sorting, we remember
 267     // the stored view properties state in m_storedCategorizedSorting and
 268     // return this state. The application takes care to disable the corresponding
 269     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 270     // that this setting is not applied to the current view mode.
 271     return m_storedCategorizedSorting;
 272 }
 273
 274 bool DolphinView::supportsCategorizedSorting() const
 275 {
 276     return m_viewAccessor.supportsCategorizedSorting();
 277 }
 278
 279 KFileItem DolphinView::rootItem() const
 280 {
 281     return m_viewAccessor.dirLister()->rootItem();
 282 }
 283
 284 KFileItemList DolphinView::items() const
 285 {
 286     return m_viewAccessor.dirLister()->items();
 287 }
 288
 289 KFileItemList DolphinView::selectedItems() const
 290 {
 291     KFileItemList itemList;
 292     const QAbstractItemView* view = m_viewAccessor.itemView();
 293     if (view == 0) {
 294         return itemList;
 295     }
 296
 297     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
 298
 299     const QModelIndexList indexList = selection.indexes();
 300     foreach (const QModelIndex &index, indexList) {
 301         KFileItem item = m_viewAccessor.dirModel()->itemForIndex(index);
 302         if (!item.isNull()) {
 303             itemList.append(item);
 304         }
 305     }
 306
 307     return itemList;
 308 }
 309
 310 int DolphinView::selectedItemsCount() const
 311 {
 312     const QAbstractItemView* view = m_viewAccessor.itemView();
 313     if (view == 0) {
 314         return 0;
 315     }
 316
 317     return view->selectionModel()->selectedIndexes().count();
 318 }
 319
 320 void DolphinView::markUrlsAsSelected(const QList<KUrl>& urls)
 321 {
 322     foreach (const KUrl& url, urls) {
 323         KFileItem item(KFileItem::Unknown, KFileItem::Unknown, url);
 324         m_selectedItems.append(item);
 325     }
 326 }
 327
 328 void DolphinView::setItemSelectionEnabled(const QRegExp& pattern, bool enabled)
 329 {
 330     const QItemSelection matchingIndexes = childrenMatchingPattern(QModelIndex(), pattern);
 331     const QItemSelectionModel::SelectionFlags command = enabled
 332                                                       ? QItemSelectionModel::Select
 333                                                       : QItemSelectionModel::Deselect;
 334     m_viewAccessor.itemView()->selectionModel()->select(matchingIndexes, command);
 335 }
 336
 337 void DolphinView::setZoomLevel(int level)
 338 {
 339     if (level < ZoomLevelInfo::minimumLevel()) {
 340         level = ZoomLevelInfo::minimumLevel();
 341     } else if (level > ZoomLevelInfo::maximumLevel()) {
 342         level = ZoomLevelInfo::maximumLevel();
 343     }
 344
 345     if (level != zoomLevel()) {
 346         m_viewModeController->setZoomLevel(level);
 347         emit zoomLevelChanged(level);
 348     }
 349 }
 350
 351 int DolphinView::zoomLevel() const
 352 {
 353     return m_viewModeController->zoomLevel();
 354 }
 355
 356 void DolphinView::setSorting(Sorting sorting)
 357 {
 358     if (sorting != this->sorting()) {
 359         updateSorting(sorting);
 360     }
 361 }
 362
 363 DolphinView::Sorting DolphinView::sorting() const
 364 {
 365     return m_viewAccessor.proxyModel()->sorting();
 366 }
 367
 368 void DolphinView::setSortOrder(Qt::SortOrder order)
 369 {
 370     if (sortOrder() != order) {
 371         updateSortOrder(order);
 372     }
 373 }
 374
 375 Qt::SortOrder DolphinView::sortOrder() const
 376 {
 377     return m_viewAccessor.proxyModel()->sortOrder();
 378 }
 379
 380 void DolphinView::setSortFoldersFirst(bool foldersFirst)
 381 {
 382     if (sortFoldersFirst() != foldersFirst) {
 383         updateSortFoldersFirst(foldersFirst);
 384     }
 385 }
 386
 387 bool DolphinView::sortFoldersFirst() const
 388 {
 389     return m_viewAccessor.proxyModel()->sortFoldersFirst();
 390 }
 391
 392 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 393 {
 394     const KUrl viewPropsUrl = rootUrl();
 395     ViewProperties props(viewPropsUrl);
 396     props.setAdditionalInfo(info);
 397     m_viewAccessor.itemDelegate()->setShowInformation(info);
 398
 399     emit additionalInfoChanged();
 400
 401     if (m_viewAccessor.reloadOnAdditionalInfoChange()) {
 402         loadDirectory(viewPropsUrl);
 403     }
 404 }
 405
 406 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 407 {
 408     return m_viewAccessor.itemDelegate()->showInformation();
 409 }
 410
 411 void DolphinView::reload()
 412 {
 413     QByteArray viewState;
 414     QDataStream saveStream(&viewState, QIODevice::WriteOnly);
 415     saveState(saveStream);
 416     m_selectedItems= selectedItems();
 417
 418     setUrl(url());
 419     loadDirectory(url(), true);
 420
 421     QDataStream restoreStream(viewState);
 422     restoreState(restoreStream);
 423 }
 424
 425 void DolphinView::stopLoading()
 426 {
 427     m_viewAccessor.dirLister()->stop();
 428 }
 429
 430 void DolphinView::refresh()
 431 {
 432     const bool oldActivationState = m_active;
 433     const int oldZoomLevel = m_viewModeController->zoomLevel();
 434     m_active = true;
 435
 436     createView();
 437     applyViewProperties();
 438     reload();
 439
 440     setActive(oldActivationState);
 441     updateZoomLevel(oldZoomLevel);
 442 }
 443
 444 void DolphinView::setNameFilter(const QString& nameFilter)
 445 {
 446     m_viewModeController->setNameFilter(nameFilter);
 447 }
 448
 449 QString DolphinView::nameFilter() const
 450 {
 451     return m_viewModeController->nameFilter();
 452 }
 453
 454 void DolphinView::calculateItemCount(int& fileCount,
 455                                      int& folderCount,
 456                                      KIO::filesize_t& totalFileSize) const
 457 {
 458     foreach (const KFileItem& item, m_viewAccessor.dirLister()->items()) {
 459         if (item.isDir()) {
 460             ++folderCount;
 461         } else {
 462             ++fileCount;
 463             totalFileSize += item.size();
 464         }
 465     }
 466 }
 467
 468 QString DolphinView::statusBarText() const
 469 {
 470     QString text;
 471     int folderCount = 0;
 472     int fileCount = 0;
 473     KIO::filesize_t totalFileSize = 0;
 474
 475     if (hasSelection()) {
 476         // give a summary of the status of the selected files
 477         const KFileItemList list = selectedItems();
 478         if (list.isEmpty()) {
 479             // when an item is triggered, it is temporary selected but selectedItems()
 480             // will return an empty list
 481             return text;
 482         }
 483
 484         KFileItemList::const_iterator it = list.begin();
 485         const KFileItemList::const_iterator end = list.end();
 486         while (it != end) {
 487             const KFileItem& item = *it;
 488             if (item.isDir()) {
 489                 ++folderCount;
 490             } else {
 491                 ++fileCount;
 492                 totalFileSize += item.size();
 493             }
 494             ++it;
 495         }
 496
 497         if (folderCount + fileCount == 1) {
 498             // if only one item is selected, show the filename
 499             const QString name = list.first().text();
 500             text = (folderCount == 1) ? i18nc("@info:status", "<filename>%1</filename> selected", name) :
 501                                         i18nc("@info:status", "<filename>%1</filename> selected (%2)",
 502                                               name, KIO::convertSize(totalFileSize));
 503         } else {
 504             // at least 2 items are selected
 505             const QString foldersText = i18ncp("@info:status", "1 Folder selected", "%1 Folders selected", folderCount);
 506             const QString filesText = i18ncp("@info:status", "1 File selected", "%1 Files selected", fileCount);
 507             if ((folderCount > 0) && (fileCount > 0)) {
 508                 text = i18nc("@info:status folders, files (size)", "%1, %2 (%3)",
 509                              foldersText, filesText, KIO::convertSize(totalFileSize));
 510             } else if (fileCount > 0) {
 511                 text = i18nc("@info:status files (size)", "%1 (%2)", filesText, KIO::convertSize(totalFileSize));
 512             } else {
 513                 Q_ASSERT(folderCount > 0);
 514                 text = foldersText;
 515             }
 516         }
 517     } else {
 518         calculateItemCount(fileCount, folderCount, totalFileSize);
 519         text = KIO::itemsSummaryString(fileCount + folderCount,
 520                                        fileCount, folderCount,
 521                                        totalFileSize, true);
 522     }
 523
 524     return text;
 525 }
 526
 527 QList<QAction*> DolphinView::versionControlActions(const KFileItemList& items) const
 528 {
 529     return m_dolphinViewController->versionControlActions(items);
 530 }
 531
 532 void DolphinView::setUrl(const KUrl& url)
 533 {
 534     if (m_viewModeController->url() == url) {
 535         return;
 536     }
 537
 538     const bool hadSelection = hasSelection();
 539
 540     // The selection model and directory lister might change in the case of the column view:
 541     disconnectViewAccessor();
 542
 543     m_newFileNames.clear();
 544
 545     m_viewModeController->setUrl(url); // emits urlChanged, which we forward
 546     m_viewAccessor.prepareUrlChange(url);
 547     applyViewProperties();
 548
 549     // When changing the URL there is no need to keep the version
 550     // data of the previous URL.
 551     m_viewAccessor.dirModel()->clearVersionData();
 552
 553     // Reconnect to the (probably) new selection model and directory lister
 554     connectViewAccessor();
 555     loadDirectory(url);
 556
 557     if (hadSelection || hasSelection()) {
 558         emitSelectionChangedSignal();
 559     }
 560 }
 561
 562 void DolphinView::selectAll()
 563 {
 564     m_viewAccessor.itemView()->selectAll();
 565 }
 566
 567 void DolphinView::invertSelection()
 568 {
 569     // Implementation note: Using selectionModel->select(selection, QItemSelectionModel::Toggle) does not
 570     // work, as QItemSelectionModel::hasSelection() provides invalid values in this case. This might be a Qt-issue -
 571     // when changing the implementation with an updated Qt-version don't forget to run the Dolphin-unit-tests that
 572     // verify this usecase.
 573     const KFileItemList selItems = selectedItems();
 574     clearSelection();
 575
 576     QItemSelection invertedSelection;
 577     foreach (const KFileItem& item, items()) {
 578         if (!selItems.contains(item)) {
 579             const QModelIndex index = m_viewAccessor.proxyModel()->mapFromSource(m_viewAccessor.dirModel()->indexForItem(item));
 580             invertedSelection.select(index, index);
 581         }
 582     }
 583
 584     QItemSelectionModel* selectionModel = m_viewAccessor.itemView()->selectionModel();
 585     selectionModel->select(invertedSelection, QItemSelectionModel::ClearAndSelect | QItemSelectionModel::Current);
 586 }
 587
 588 void DolphinView::clearSelection()
 589 {
 590     m_viewAccessor.itemView()->clearSelection();
 591 }
 592
 593 void DolphinView::renameSelectedItems()
 594 {
 595     KFileItemList items = selectedItems();
 596     const int itemCount = items.count();
 597     if (itemCount < 1) {
 598         return;
 599     }
 600
 601     if ((itemCount == 1) && DolphinSettings::instance().generalSettings()->renameInline()) {
 602         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForItem(items.first());
 603         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
 604         m_viewAccessor.itemView()->edit(proxyIndex);
 605     } else {
 606         RenameDialog* dialog = new RenameDialog(this, items);
 607         dialog->setAttribute(Qt::WA_DeleteOnClose);
 608         dialog->show();
 609         dialog->raise();
 610         dialog->activateWindow();
 611     }
 612 }
 613
 614 void DolphinView::trashSelectedItems()
 615 {
 616     const KUrl::List list = simplifiedSelectedUrls();
 617     KonqOperations::del(this, KonqOperations::TRASH, list);
 618 }
 619
 620 void DolphinView::deleteSelectedItems()
 621 {
 622     const KUrl::List list = simplifiedSelectedUrls();
 623     const bool del = KonqOperations::askDeleteConfirmation(list,
 624                      KonqOperations::DEL,
 625                      KonqOperations::DEFAULT_CONFIRMATION,
 626                      this);
 627
 628     if (del) {
 629         KIO::Job* job = KIO::del(list);
 630         connect(job, SIGNAL(result(KJob*)),
 631                 this, SLOT(slotDeleteFileFinished(KJob*)));
 632     }
 633 }
 634
 635 void DolphinView::cutSelectedItems()
 636 {
 637     QMimeData* mimeData = selectionMimeData();
 638     KonqMimeData::addIsCutSelection(mimeData, true);
 639     QApplication::clipboard()->setMimeData(mimeData);
 640 }
 641
 642 void DolphinView::copySelectedItems()
 643 {
 644     QMimeData* mimeData = selectionMimeData();
 645     QApplication::clipboard()->setMimeData(mimeData);
 646 }
 647
 648 void DolphinView::paste()
 649 {
 650     pasteToUrl(url());
 651 }
 652
 653 void DolphinView::pasteIntoFolder()
 654 {
 655     const KFileItemList items = selectedItems();
 656     if ((items.count() == 1) && items.first().isDir()) {
 657         pasteToUrl(items.first().url());
 658     }
 659 }
 660
 661 void DolphinView::setShowPreview(bool show)
 662 {
 663     if (m_showPreview == show) {
 664         return;
 665     }
 666
 667     const KUrl viewPropsUrl = rootUrl();
 668     ViewProperties props(viewPropsUrl);
 669     props.setShowPreview(show);
 670
 671     m_showPreview = show;
 672     const int oldZoomLevel = m_viewModeController->zoomLevel();
 673     emit showPreviewChanged();
 674
 675     // Enabling or disabling the preview might change the icon size of the view.
 676     // As the view does not emit a signal when the icon size has been changed,
 677     // the used zoom level of the controller must be adjusted manually:
 678     updateZoomLevel(oldZoomLevel);
 679 }
 680
 681 void DolphinView::setShowHiddenFiles(bool show)
 682 {
 683     if (m_viewAccessor.dirLister()->showingDotFiles() == show) {
 684         return;
 685     }
 686
 687     const KUrl viewPropsUrl = rootUrl();
 688     ViewProperties props(viewPropsUrl);
 689     props.setShowHiddenFiles(show);
 690
 691     m_viewAccessor.dirLister()->setShowingDotFiles(show);
 692     emit showHiddenFilesChanged();
 693 }
 694
 695 void DolphinView::setCategorizedSorting(bool categorized)
 696 {
 697     if (categorized == categorizedSorting()) {
 698         return;
 699     }
 700
 701     // setCategorizedSorting(true) may only get invoked
 702     // if the view supports categorized sorting
 703     Q_ASSERT(!categorized || supportsCategorizedSorting());
 704
 705     ViewProperties props(rootUrl());
 706     props.setCategorizedSorting(categorized);
 707     props.save();
 708
 709     m_storedCategorizedSorting = categorized;
 710     m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 711
 712     emit categorizedSortingChanged();
 713 }
 714
 715 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 716 {
 717     QWidget::mouseReleaseEvent(event);
 718     setActive(true);
 719 }
 720
 721 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 722 {
 723     switch (event->type()) {
 724     case QEvent::FocusIn:
 725         if (watched == m_viewAccessor.itemView()) {
 726             m_dolphinViewController->requestActivation();
 727         }
 728         break;
 729
 730     case QEvent::DragEnter:
 731         if (watched == m_viewAccessor.itemView()->viewport()) {
 732             setActive(true);
 733         }
 734         break;
 735
 736     case QEvent::KeyPress:
 737         if (watched == m_viewAccessor.itemView()) {
 738             // clear the selection when Escape has been pressed
 739             QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
 740             if (keyEvent->key() == Qt::Key_Escape) {
 741                 clearSelection();
 742             }
 743         }
 744         break;
 745
 746     case QEvent::Wheel:
 747         if (watched == m_viewAccessor.itemView()->viewport()) {
 748             // Ctrl+wheel events should cause icon zooming, but not if the left mouse button is pressed
 749             // (the user is probably trying to scroll during a selection in that case)
 750             QWheelEvent* wheelEvent = static_cast<QWheelEvent*>(event);
 751             if (wheelEvent->modifiers() & Qt::ControlModifier && !(wheelEvent->buttons() & Qt::LeftButton)) {
 752                 const int delta = wheelEvent->delta();
 753                 const int level = zoomLevel();
 754                 if (delta > 0) {
 755                     setZoomLevel(level + 1);
 756                 } else if (delta < 0) {
 757                     setZoomLevel(level - 1);
 758                 }
 759                 return true;
 760             }
 761         }
 762         break;
 763
 764     default:
 765         break;
 766     }
 767
 768     return QWidget::eventFilter(watched, event);
 769 }
 770
 771 void DolphinView::activate()
 772 {
 773     setActive(true);
 774 }
 775
 776 void DolphinView::triggerItem(const KFileItem& item)
 777 {
 778     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 779     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 780         // items are selected by the user, hence don't trigger the
 781         // item specified by 'index'
 782         return;
 783     }
 784
 785     // TODO: the m_isContextMenuOpen check is a workaround for Qt-issue 207192
 786     if (item.isNull() || m_isContextMenuOpen) {
 787         return;
 788     }
 789
 790     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 791 }
 792
 793 void DolphinView::slotSelectionChanged(const QItemSelection& selected, const QItemSelection& deselected)
 794 {
 795     const int count = selectedItemsCount();
 796     const bool selectionStateChanged = ((count >  0) && (selected.count() == count)) ||
 797                                        ((count == 0) && !deselected.isEmpty());
 798
 799     // If nothing has been selected before and something got selected (or if something
 800     // was selected before and now nothing is selected) the selectionChangedSignal must
 801     // be emitted asynchronously as fast as possible to update the edit-actions.
 802     m_selectionChangedTimer->setInterval(selectionStateChanged ? 0 : 300);
 803     m_selectionChangedTimer->start();
 804 }
 805
 806 void DolphinView::emitSelectionChangedSignal()
 807 {
 808     m_selectionChangedTimer->stop();
 809     emit selectionChanged(selectedItems());
 810 }
 811
 812 void DolphinView::openContextMenu(const QPoint& pos,
 813                                   const QList<QAction*>& customActions)
 814 {
 815     KFileItem item;
 816     const QModelIndex index = m_viewAccessor.itemView()->indexAt(pos);
 817     if (index.isValid() && (index.column() == DolphinModel::Name)) {
 818         const QModelIndex dolphinModelIndex = m_viewAccessor.proxyModel()->mapToSource(index);
 819         item = m_viewAccessor.dirModel()->itemForIndex(dolphinModelIndex);
 820     }
 821
 822     m_isContextMenuOpen = true; // TODO: workaround for Qt-issue 207192
 823     emit requestContextMenu(item, url(), customActions);
 824     m_isContextMenuOpen = false;
 825 }
 826
 827 void DolphinView::dropUrls(const KFileItem& destItem,
 828                            const KUrl& destPath,
 829                            QDropEvent* event)
 830 {
 831     addNewFileNames(event->mimeData());
 832     DragAndDropHelper::instance().dropUrls(destItem, destPath, event, this);
 833 }
 834
 835 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 836 {
 837     ViewProperties props(rootUrl());
 838     props.setSorting(sorting);
 839
 840     m_viewAccessor.proxyModel()->setSorting(sorting);
 841
 842     emit sortingChanged(sorting);
 843 }
 844
 845 void DolphinView::updateSortOrder(Qt::SortOrder order)
 846 {
 847     ViewProperties props(rootUrl());
 848     props.setSortOrder(order);
 849
 850     m_viewAccessor.proxyModel()->setSortOrder(order);
 851
 852     emit sortOrderChanged(order);
 853 }
 854
 855 void DolphinView::updateSortFoldersFirst(bool foldersFirst)
 856 {
 857     ViewProperties props(rootUrl());
 858     props.setSortFoldersFirst(foldersFirst);
 859
 860     m_viewAccessor.proxyModel()->setSortFoldersFirst(foldersFirst);
 861
 862     emit sortFoldersFirstChanged(foldersFirst);
 863 }
 864
 865 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 866 {
 867     ViewProperties props(rootUrl());
 868     props.setAdditionalInfo(info);
 869     props.save();
 870
 871     m_viewAccessor.itemDelegate()->setShowInformation(info);
 872
 873     emit additionalInfoChanged();
 874 }
 875
 876 void DolphinView::updateAdditionalInfoActions(KActionCollection* collection)
 877 {
 878     const AdditionalInfoAccessor& infoAccessor = AdditionalInfoAccessor::instance();
 879
 880     const KFileItemDelegate::InformationList checkedInfo = m_viewAccessor.itemDelegate()->showInformation();
 881     const KFileItemDelegate::InformationList infoKeys = infoAccessor.keys();
 882
 883     const bool enable = (m_mode == DolphinView::DetailsView) ||
 884                         (m_mode == DolphinView::IconsView);
 885
 886     foreach (const KFileItemDelegate::Information& info, infoKeys) {
 887         const QString name = infoAccessor.actionCollectionName(info, AdditionalInfoAccessor::AdditionalInfoType);
 888         QAction* action = collection->action(name);
 889         Q_ASSERT(action != 0);
 890         action->setEnabled(enable);
 891         action->setChecked(checkedInfo.contains(info));
 892     }
 893 }
 894
 895 QPair<bool, QString> DolphinView::pasteInfo() const
 896 {
 897     return KonqOperations::pasteInfo(url());
 898 }
 899
 900 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
 901 {
 902     m_tabsForFiles = tabsForFiles;
 903 }
 904
 905 bool DolphinView::isTabsForFilesEnabled() const
 906 {
 907     return m_tabsForFiles;
 908 }
 909
 910 bool DolphinView::itemsExpandable() const
 911 {
 912     return m_viewAccessor.itemsExpandable();
 913 }
 914
 915 void DolphinView::restoreState(QDataStream& stream)
 916 {
 917     // Restore the URL of the current item that had the keyboard focus
 918     stream >> m_activeItemUrl;
 919
 920     // Restore the root URL
 921     KUrl rootUrl;
 922     stream >> rootUrl;
 923     m_viewAccessor.setRootUrl(rootUrl);
 924
 925     // Restore the view position
 926     stream >> m_restoredContentsPosition;
 927
 928     // Restore expanded folders (only relevant for the details view - will be ignored by the view in other view modes)
 929     QSet<KUrl> urlsToExpand;
 930     stream >> urlsToExpand;
 931     const DolphinDetailsViewExpander* expander = m_viewAccessor.setExpandedUrls(urlsToExpand);
 932     if (expander != 0) {
 933         m_expanderActive = true;
 934         connect (expander, SIGNAL(completed()), this, SLOT(slotLoadingCompleted()));
 935     }
 936     else {
 937         m_expanderActive = false;
 938     }
 939 }
 940
 941 void DolphinView::saveState(QDataStream& stream)
 942 {
 943     // Save the URL of the current item that has the keyboard focus
 944     KFileItem currentItem;
 945     const QAbstractItemView* view = m_viewAccessor.itemView();
 946
 947     if (view != 0) {
 948         const QModelIndex proxyIndex = view->currentIndex();
 949         const QModelIndex dirModelIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
 950         currentItem = m_viewAccessor.dirModel()->itemForIndex(dirModelIndex);
 951     }
 952
 953     KUrl currentItemUrl;
 954     if (!currentItem.isNull()) {
 955         currentItemUrl = currentItem.url();
 956     }
 957
 958     stream << currentItemUrl;
 959
 960     // Save the root URL
 961     stream << m_viewAccessor.rootUrl();
 962
 963     // Save view position
 964     const int x = view->horizontalScrollBar()->value();
 965     const int y = view->verticalScrollBar()->value();
 966     stream << QPoint(x, y);
 967
 968     // Save expanded folders (only relevant for the details view - the set will be empty in other view modes)
 969     stream << m_viewAccessor.expandedUrls();
 970 }
 971
 972 bool DolphinView::hasSelection() const
 973 {
 974     const QAbstractItemView* view = m_viewAccessor.itemView();
 975     return (view != 0) && view->selectionModel()->hasSelection();
 976 }
 977
 978 void DolphinView::observeCreatedItem(const KUrl& url)
 979 {
 980     m_createdItemUrl = url;
 981     connect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
 982             this, SLOT(selectAndScrollToCreatedItem()));
 983 }
 984
 985 void DolphinView::selectAndScrollToCreatedItem()
 986 {
 987     const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_createdItemUrl);
 988     if (dirIndex.isValid()) {
 989         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
 990         m_viewAccessor.itemView()->setCurrentIndex(proxyIndex);
 991     }
 992
 993     disconnect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
 994                this, SLOT(selectAndScrollToCreatedItem()));
 995     m_createdItemUrl = KUrl();
 996 }
 997
 998 void DolphinView::slotRedirection(const KUrl& oldUrl, const KUrl& newUrl)
 999 {
1000     if (oldUrl.equals(url(), KUrl::CompareWithoutTrailingSlash)) {
1001         emit redirection(oldUrl, newUrl);
1002         m_viewModeController->redirectToUrl(newUrl); // #186947
1003     }
1004 }
1005
1006 void DolphinView::restoreContentsPosition()
1007 {
1008     if (!m_restoredContentsPosition.isNull()) {
1009         const int x = m_restoredContentsPosition.x();
1010         const int y = m_restoredContentsPosition.y();
1011         m_restoredContentsPosition = QPoint();
1012
1013         QAbstractItemView* view = m_viewAccessor.itemView();
1014         Q_ASSERT(view != 0);
1015         view->horizontalScrollBar()->setValue(x);
1016         view->verticalScrollBar()->setValue(y);
1017     }
1018 }
1019
1020 void DolphinView::slotUrlChangeRequested(const KUrl& url)
1021 {
1022     m_viewModeController->setUrl(url);
1023     updateWritableState();
1024 }
1025
1026 void DolphinView::showHoverInformation(const KFileItem& item)
1027 {
1028     emit requestItemInfo(item);
1029 }
1030
1031 void DolphinView::clearHoverInformation()
1032 {
1033     emit requestItemInfo(KFileItem());
1034 }
1035
1036 void DolphinView::slotDeleteFileFinished(KJob* job)
1037 {
1038     if (job->error() == 0) {
1039         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1040     } else if (job->error() != KIO::ERR_USER_CANCELED) {
1041         emit errorMessage(job->errorString());
1042     }
1043 }
1044
1045 void DolphinView::slotDirListerStarted(const KUrl& url)
1046 {
1047     // Disable the writestate temporary until it can be determined in a fast way
1048     // in DolphinView::slotDirListerCompleted()
1049     if (m_isFolderWritable) {
1050         m_isFolderWritable = false;
1051         emit writeStateChanged(m_isFolderWritable);
1052     }
1053
1054     emit startedPathLoading(url);
1055 }
1056
1057 void DolphinView::slotDirListerCompleted()
1058 {
1059     if (!m_expanderActive) {
1060         slotLoadingCompleted();
1061     }
1062
1063     if (!m_newFileNames.isEmpty()) {
1064         // select all newly added items created by a paste operation or
1065         // a drag & drop operation, and clear the previous selection
1066         m_viewAccessor.itemView()->clearSelection();
1067         const int rowCount = m_viewAccessor.proxyModel()->rowCount();
1068         QItemSelection selection;
1069         for (int row = 0; row < rowCount; ++row) {
1070             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->index(row, 0);
1071             const QModelIndex dirIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
1072             const KUrl url = m_viewAccessor.dirModel()->itemForIndex(dirIndex).url();
1073             if (m_newFileNames.contains(url.fileName())) {
1074                 selection.merge(QItemSelection(proxyIndex, proxyIndex), QItemSelectionModel::Select);
1075             }
1076         }
1077         m_viewAccessor.itemView()->selectionModel()->select(selection, QItemSelectionModel::Select);
1078
1079         m_newFileNames.clear();
1080     }
1081
1082     updateWritableState();
1083 }
1084
1085 void DolphinView::slotLoadingCompleted()
1086 {
1087     m_expanderActive = false;
1088
1089     if (!m_activeItemUrl.isEmpty()) {
1090         // assure that the current item remains visible
1091         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_activeItemUrl);
1092         if (dirIndex.isValid()) {
1093             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1094             QAbstractItemView* view = m_viewAccessor.itemView();
1095             const bool clearSelection = !hasSelection();
1096             view->setCurrentIndex(proxyIndex);
1097             if (clearSelection) {
1098                 view->clearSelection();
1099             }
1100             m_activeItemUrl.clear();
1101         }
1102     }
1103
1104     if (!m_selectedItems.isEmpty()) {
1105         const KUrl& baseUrl = url();
1106         KUrl url;
1107         QItemSelection newSelection;
1108         foreach(const KFileItem& item, m_selectedItems) {
1109             url = item.url().upUrl();
1110             if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
1111                 const QModelIndex index = m_viewAccessor.proxyModel()->mapFromSource(m_viewAccessor.dirModel()->indexForItem(item));
1112                 newSelection.select(index, index);
1113             }
1114         }
1115         m_viewAccessor.itemView()->selectionModel()->select(newSelection,
1116                                                             QItemSelectionModel::ClearAndSelect
1117                                                             | QItemSelectionModel::Current);
1118         m_selectedItems.clear();
1119     }
1120
1121     // Restore the contents position. This has to be done using a Qt::QueuedConnection
1122     // because the view might not be in its final state yet.
1123     QMetaObject::invokeMethod(this, "restoreContentsPosition", Qt::QueuedConnection);
1124
1125     emit finishedPathLoading(url());
1126 }
1127
1128 void DolphinView::slotRefreshItems()
1129 {
1130     if (m_assureVisibleCurrentIndex) {
1131         m_assureVisibleCurrentIndex = false;
1132         m_viewAccessor.itemView()->scrollTo(m_viewAccessor.itemView()->currentIndex());
1133     }
1134 }
1135
1136 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1137 {
1138     if (!url.isValid()) {
1139         const QString location(url.pathOrUrl());
1140         if (location.isEmpty()) {
1141             emit errorMessage(i18nc("@info:status", "The location is empty."));
1142         } else {
1143             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1144         }
1145         return;
1146     }
1147
1148     KDirLister* dirLister = m_viewAccessor.dirLister();
1149     dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
1150 }
1151
1152 void DolphinView::applyViewProperties()
1153 {
1154     const ViewProperties props(rootUrl());
1155
1156     const Mode mode = props.viewMode();
1157     if (m_mode != mode) {
1158         const int oldZoomLevel = m_viewModeController->zoomLevel();
1159
1160         m_mode = mode;
1161         createView();
1162         emit modeChanged();
1163
1164         updateZoomLevel(oldZoomLevel);
1165     }
1166     if (m_viewAccessor.itemView() == 0) {
1167         createView();
1168     }
1169
1170     Q_ASSERT(m_viewAccessor.itemView() != 0);
1171     Q_ASSERT(m_viewAccessor.itemDelegate() != 0);
1172
1173     const bool showHiddenFiles = props.showHiddenFiles();
1174     if (showHiddenFiles != m_viewAccessor.dirLister()->showingDotFiles()) {
1175         m_viewAccessor.dirLister()->setShowingDotFiles(showHiddenFiles);
1176         emit showHiddenFilesChanged();
1177     }
1178
1179     m_storedCategorizedSorting = props.categorizedSorting();
1180     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1181     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
1182         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
1183         emit categorizedSortingChanged();
1184     }
1185
1186     const DolphinView::Sorting sorting = props.sorting();
1187     if (sorting != m_viewAccessor.proxyModel()->sorting()) {
1188         m_viewAccessor.proxyModel()->setSorting(sorting);
1189         emit sortingChanged(sorting);
1190     }
1191
1192     const Qt::SortOrder sortOrder = props.sortOrder();
1193     if (sortOrder != m_viewAccessor.proxyModel()->sortOrder()) {
1194         m_viewAccessor.proxyModel()->setSortOrder(sortOrder);
1195         emit sortOrderChanged(sortOrder);
1196     }
1197
1198     const bool sortFoldersFirst = props.sortFoldersFirst();
1199     if (sortFoldersFirst != m_viewAccessor.proxyModel()->sortFoldersFirst()) {
1200         m_viewAccessor.proxyModel()->setSortFoldersFirst(sortFoldersFirst);
1201         emit sortFoldersFirstChanged(sortFoldersFirst);
1202     }
1203
1204     KFileItemDelegate::InformationList info = props.additionalInfo();
1205     if (info != m_viewAccessor.itemDelegate()->showInformation()) {
1206         m_viewAccessor.itemDelegate()->setShowInformation(info);
1207         emit additionalInfoChanged();
1208     }
1209
1210     const bool showPreview = props.showPreview();
1211     if (showPreview != m_showPreview) {
1212         m_showPreview = showPreview;
1213         const int oldZoomLevel = m_viewModeController->zoomLevel();
1214         emit showPreviewChanged();
1215
1216         // Enabling or disabling the preview might change the icon size of the view.
1217         // As the view does not emit a signal when the icon size has been changed,
1218         // the used zoom level of the controller must be adjusted manually:
1219         updateZoomLevel(oldZoomLevel);
1220     }
1221 }
1222
1223 void DolphinView::createView()
1224 {
1225     deleteView();
1226
1227     Q_ASSERT(m_viewAccessor.itemView() == 0);
1228     Q_ASSERT(m_dolphinViewController->itemView() == 0);
1229     m_viewAccessor.createView(this, m_dolphinViewController, m_viewModeController, m_mode);
1230
1231     QAbstractItemView* view = m_viewAccessor.itemView();
1232     Q_ASSERT(view != 0);
1233     view->installEventFilter(this);
1234     view->viewport()->installEventFilter(this);
1235
1236     m_dolphinViewController->setItemView(view);
1237
1238     const int zoomLevel = ZoomLevelInfo::zoomLevelForIconSize(view->iconSize());
1239     m_viewModeController->setZoomLevel(zoomLevel);
1240
1241     connectViewAccessor();
1242
1243     setFocusProxy(m_viewAccessor.layoutTarget());
1244     m_topLayout->insertWidget(1, m_viewAccessor.layoutTarget());
1245 }
1246
1247 void DolphinView::deleteView()
1248 {
1249     QAbstractItemView* view = m_viewAccessor.itemView();
1250     Q_ASSERT((m_dolphinViewController->itemView() == 0) || (m_dolphinViewController->itemView() == view));
1251     m_dolphinViewController->setItemView(0);
1252
1253     if (view != 0) {
1254         disconnectViewAccessor();
1255
1256         if (hasFocus()) {
1257             // It's important to set the keyboard focus to the parent
1258             // before deleting the view: Otherwise when having a split
1259             // view the other view will get the focus and will request
1260             // an activation (see DolphinView::eventFilter()).
1261             setFocusProxy(0);
1262             setFocus();
1263         }
1264
1265         m_viewModeController->disconnect(view);
1266
1267         m_viewAccessor.deleteView();
1268     }
1269 }
1270
1271 void DolphinView::pasteToUrl(const KUrl& url)
1272 {
1273     addNewFileNames(QApplication::clipboard()->mimeData());
1274     KonqOperations::doPaste(this, url);
1275 }
1276
1277 void DolphinView::updateZoomLevel(int oldZoomLevel)
1278 {
1279     const int newZoomLevel = ZoomLevelInfo::zoomLevelForIconSize(m_viewAccessor.itemView()->iconSize());
1280     if (oldZoomLevel != newZoomLevel) {
1281         m_viewModeController->setZoomLevel(newZoomLevel);
1282         emit zoomLevelChanged(newZoomLevel);
1283     }
1284 }
1285
1286 KUrl::List DolphinView::simplifiedSelectedUrls() const
1287 {
1288     KUrl::List urls;
1289
1290     const KFileItemList items = selectedItems();
1291     foreach (const KFileItem &item, items) {
1292         urls.append(item.url());
1293     }
1294
1295
1296     if (itemsExpandable()) {
1297         urls = KDirModel::simplifiedUrlList(urls);
1298     }
1299
1300     return urls;
1301 }
1302
1303 QMimeData* DolphinView::selectionMimeData() const
1304 {
1305     const QAbstractItemView* view = m_viewAccessor.itemView();
1306     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
1307     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
1308     return m_viewAccessor.dirModel()->mimeData(selection.indexes());
1309 }
1310
1311 void DolphinView::addNewFileNames(const QMimeData* mimeData)
1312 {
1313     const KUrl::List urls = KUrl::List::fromMimeData(mimeData);
1314     foreach (const KUrl& url, urls) {
1315         m_newFileNames.insert(url.fileName());
1316     }
1317 }
1318
1319 QItemSelection DolphinView::childrenMatchingPattern(const QModelIndex& parent, const QRegExp& pattern) const
1320 {
1321     QItemSelection matchingIndexes;
1322     const DolphinSortFilterProxyModel* proxyModel = m_viewAccessor.proxyModel();
1323     const DolphinModel* dolphinModel = m_viewAccessor.dirModel();
1324
1325     const int rowCount = proxyModel->rowCount(parent);
1326
1327     for (int row = 0; row < rowCount; ++row) {
1328         QModelIndex index = proxyModel->index(row, 0, parent);
1329         QModelIndex sourceIndex = proxyModel->mapToSource(index);
1330
1331         if (sourceIndex.isValid() && pattern.exactMatch(dolphinModel->data(sourceIndex).toString())) {
1332             matchingIndexes += QItemSelectionRange(index);
1333         }
1334
1335         if (proxyModel->hasChildren(index)) {
1336             matchingIndexes += childrenMatchingPattern(index, pattern);
1337         }
1338     }
1339
1340     return matchingIndexes;
1341 }
1342
1343 void DolphinView::connectViewAccessor()
1344 {
1345     KDirLister* dirLister = m_viewAccessor.dirLister();
1346     connect(dirLister, SIGNAL(redirection(KUrl,KUrl)), this, SLOT(slotRedirection(KUrl,KUrl)));
1347     connect(dirLister, SIGNAL(started(KUrl)),          this, SLOT(slotDirListerStarted(KUrl)));
1348     connect(dirLister, SIGNAL(completed()),            this, SLOT(slotDirListerCompleted()));
1349     connect(dirLister, SIGNAL(refreshItems(const QList<QPair<KFileItem,KFileItem>>&)),
1350             this, SLOT(slotRefreshItems()));
1351
1352     connect(dirLister, SIGNAL(clear()),                      this, SIGNAL(itemCountChanged()));
1353     connect(dirLister, SIGNAL(newItems(KFileItemList)),      this, SIGNAL(itemCountChanged()));
1354     connect(dirLister, SIGNAL(infoMessage(const QString&)),  this, SIGNAL(infoMessage(const QString&)));
1355     connect(dirLister, SIGNAL(errorMessage(const QString&)), this, SIGNAL(infoMessage(const QString&)));
1356     connect(dirLister, SIGNAL(percent(int)),                 this, SIGNAL(pathLoadingProgress(int)));
1357     connect(dirLister, SIGNAL(urlIsFileError(const KUrl&)),  this, SIGNAL(urlIsFileError(const KUrl&)));
1358     connect(dirLister, SIGNAL(itemsDeleted(const KFileItemList&)), this, SIGNAL(itemCountChanged()));
1359
1360     QAbstractItemView* view = m_viewAccessor.itemView();
1361     connect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
1362             this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
1363 }
1364
1365 void DolphinView::disconnectViewAccessor()
1366 {
1367     KDirLister* dirLister = m_viewAccessor.dirLister();
1368     disconnect(dirLister, SIGNAL(redirection(KUrl,KUrl)), this, SLOT(slotRedirection(KUrl,KUrl)));
1369     disconnect(dirLister, SIGNAL(started(KUrl)),          this, SLOT(slotDirListerStarted(KUrl)));
1370     disconnect(dirLister, SIGNAL(completed()),            this, SLOT(slotDirListerCompleted()));
1371     disconnect(dirLister, SIGNAL(refreshItems(const QList<QPair<KFileItem,KFileItem>>&)),
1372                this, SLOT(slotRefreshItems()));
1373
1374     disconnect(dirLister, SIGNAL(clear()),                      this, SIGNAL(itemCountChanged()));
1375     disconnect(dirLister, SIGNAL(newItems(KFileItemList)),      this, SIGNAL(itemCountChanged()));
1376     disconnect(dirLister, SIGNAL(infoMessage(const QString&)),  this, SIGNAL(infoMessage(const QString&)));
1377     disconnect(dirLister, SIGNAL(errorMessage(const QString&)), this, SIGNAL(errorMessage(const QString&)));
1378     disconnect(dirLister, SIGNAL(percent(int)),                 this, SIGNAL(pathLoadingProgress(int)));
1379     disconnect(dirLister, SIGNAL(urlIsFileError(const KUrl&)),  this, SIGNAL(urlIsFileError(const KUrl&)));
1380     disconnect(dirLister, SIGNAL(itemsDeleted(const KFileItemList&)), this, SIGNAL(itemCountChanged()));
1381
1382     QAbstractItemView* view = m_viewAccessor.itemView();
1383     disconnect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
1384                this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
1385 }
1386
1387 void DolphinView::updateWritableState()
1388 {
1389     const bool wasFolderWritable = m_isFolderWritable;
1390     m_isFolderWritable = true;
1391
1392     const KFileItem item = m_viewAccessor.dirLister()->rootItem();
1393     if (!item.isNull()) {
1394         KFileItemListProperties capabilities(KFileItemList() << item);
1395         m_isFolderWritable = capabilities.supportsWriting();
1396     }
1397     if (m_isFolderWritable != wasFolderWritable) {
1398         emit writeStateChanged(m_isFolderWritable);
1399     }
1400 }
1401
1402 DolphinView::ViewAccessor::ViewAccessor() :
1403     m_rootUrl(),
1404     m_iconsView(0),
1405     m_detailsView(0),
1406     m_columnsContainer(0),
1407     m_dolphinModel(0),
1408     m_proxyModel(0),
1409     m_dragSource(0)
1410 {
1411     DolphinDirLister* dirLister = new DolphinDirLister();
1412     dirLister->setAutoUpdate(true);
1413     dirLister->setDelayedMimeTypes(true);
1414
1415     m_dolphinModel = new DolphinModel();
1416     m_dolphinModel->setDirLister(dirLister);  // m_dolphinModel takes ownership of dirLister
1417     m_dolphinModel->setDropsAllowed(DolphinModel::DropOnDirectory);
1418
1419     m_proxyModel = new DolphinSortFilterProxyModel();
1420     m_proxyModel->setSourceModel(m_dolphinModel);
1421     m_proxyModel->setFilterCaseSensitivity(Qt::CaseInsensitive);
1422 }
1423
1424 DolphinView::ViewAccessor::~ViewAccessor()
1425 {
1426     delete m_proxyModel;
1427     m_proxyModel = 0;
1428
1429     delete m_dolphinModel;
1430     m_dolphinModel = 0;
1431
1432     delete m_dragSource;
1433     m_dragSource = 0;
1434 }
1435
1436 void DolphinView::ViewAccessor::createView(QWidget* parent,
1437                                            DolphinViewController* dolphinViewController,
1438                                            const ViewModeController* viewModeController,
1439                                            Mode mode)
1440 {
1441     Q_ASSERT(itemView() == 0);
1442
1443     switch (mode) {
1444     case IconsView:
1445         m_iconsView = new DolphinIconsView(parent,
1446                                            dolphinViewController,
1447                                            viewModeController,
1448                                            m_proxyModel);
1449         break;
1450
1451     case DetailsView:
1452         m_detailsView = new DolphinDetailsView(parent,
1453                                                dolphinViewController,
1454                                                viewModeController,
1455                                                m_proxyModel);
1456         break;
1457
1458     case ColumnView:
1459         m_columnsContainer = new DolphinColumnViewContainer(parent,
1460                                                             dolphinViewController,
1461                                                             viewModeController);
1462         if (!m_rootUrl.isEmpty() && m_rootUrl.isParentOf(viewModeController->url())) {
1463             // The column-view must show several columns starting with m_rootUrl as
1464             // first column and viewModeController->url() as last column.
1465             m_columnsContainer->showColumn(m_rootUrl);
1466             m_columnsContainer->showColumn(viewModeController->url());
1467         }
1468         break;
1469
1470     default:
1471         Q_ASSERT(false);
1472     }
1473 }
1474
1475 void DolphinView::ViewAccessor::deleteView()
1476 {
1477     if (m_columnsContainer != 0) {
1478         m_columnsContainer->close();
1479         m_columnsContainer->disconnect();
1480         m_columnsContainer->deleteLater();
1481         m_columnsContainer = 0;
1482     } else {
1483         QAbstractItemView* view = itemView();
1484         if (view != 0) {
1485             view->close();
1486             view->disconnect();
1487
1488             if (DragAndDropHelper::instance().isDragSource(view)) {
1489                 // The view is a drag source (the feature "Open folders
1490                 // during drag operations" is used). Deleting the view
1491                 // during an ongoing drag operation is not allowed, so
1492                 // this will postponed.
1493                 if (m_dragSource != 0) {
1494                     // the old stored view is obviously not the drag source anymore
1495                     m_dragSource->deleteLater();
1496                     m_dragSource = 0;
1497                 }
1498                 view->hide();
1499                 m_dragSource = view;
1500             } else {
1501                 view->deleteLater();
1502                 view = 0;
1503             }
1504         }
1505
1506         m_iconsView = 0;
1507         m_detailsView = 0;
1508     }
1509 }
1510
1511 void DolphinView::ViewAccessor::prepareUrlChange(const KUrl& url)
1512 {
1513     if (m_columnsContainer != 0) {
1514         m_columnsContainer->showColumn(url);
1515     }
1516 }
1517
1518 QAbstractItemView* DolphinView::ViewAccessor::itemView() const
1519 {
1520     if (m_iconsView != 0) {
1521         return m_iconsView;
1522     }
1523
1524     if (m_detailsView != 0) {
1525         return m_detailsView;
1526     }
1527
1528     if (m_columnsContainer != 0) {
1529         return m_columnsContainer->activeColumn();
1530     }
1531
1532     return 0;
1533 }
1534
1535 KFileItemDelegate* DolphinView::ViewAccessor::itemDelegate() const
1536 {
1537     return static_cast<KFileItemDelegate*>(itemView()->itemDelegate());
1538 }
1539
1540 QWidget* DolphinView::ViewAccessor::layoutTarget() const
1541 {
1542     if (m_columnsContainer != 0) {
1543         return m_columnsContainer;
1544     }
1545     return itemView();
1546 }
1547
1548 void DolphinView::ViewAccessor::setRootUrl(const KUrl& rootUrl)
1549 {
1550     m_rootUrl = rootUrl;
1551 }
1552
1553 KUrl DolphinView::ViewAccessor::rootUrl() const
1554 {
1555     return (m_columnsContainer != 0) ? m_columnsContainer->rootUrl() : m_rootUrl;
1556 }
1557
1558 bool DolphinView::ViewAccessor::supportsCategorizedSorting() const
1559 {
1560     return m_iconsView != 0;
1561 }
1562
1563 bool DolphinView::ViewAccessor::itemsExpandable() const
1564 {
1565     return (m_detailsView != 0) && m_detailsView->itemsExpandable();
1566 }
1567
1568 QSet<KUrl> DolphinView::ViewAccessor::expandedUrls() const
1569 {
1570     if (m_detailsView != 0) {
1571         return m_detailsView->expandedUrls();
1572     }
1573
1574     return QSet<KUrl>();
1575 }
1576
1577 const DolphinDetailsViewExpander* DolphinView::ViewAccessor::setExpandedUrls(const QSet<KUrl>& urlsToExpand)
1578 {
1579     if ((m_detailsView != 0) && m_detailsView->itemsExpandable() && !urlsToExpand.isEmpty()) {
1580         // Check if another expander is already active and stop it if necessary.
1581         if(!m_detailsViewExpander.isNull()) {
1582             m_detailsViewExpander->stop();
1583         }
1584
1585         m_detailsViewExpander = new DolphinDetailsViewExpander(m_detailsView, urlsToExpand);
1586         return m_detailsViewExpander;
1587     }
1588     else {
1589         return 0;
1590     }
1591 }
1592
1593 bool DolphinView::ViewAccessor::reloadOnAdditionalInfoChange() const
1594 {
1595     // the details view requires no reloading of the directory, as it maps
1596     // the file item delegate info to its columns internally
1597     return m_detailsView != 0;
1598 }
1599
1600 DolphinModel* DolphinView::ViewAccessor::dirModel() const
1601 {
1602     return static_cast<DolphinModel*>(proxyModel()->sourceModel());
1603 }
1604
1605 DolphinSortFilterProxyModel* DolphinView::ViewAccessor::proxyModel() const
1606 {
1607     if (m_columnsContainer != 0) {
1608         return static_cast<DolphinSortFilterProxyModel*>(m_columnsContainer->activeColumn()->model());
1609     }
1610     return m_proxyModel;
1611 }
1612
1613 KDirLister* DolphinView::ViewAccessor::dirLister() const
1614 {
1615     return dirModel()->dirLister();
1616 }
1617
1618 #include "dolphinview.moc"