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