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 KUrl::List DolphinView::selectedUrls() const
 318 {
 319     KUrl::List urls;
 320     const KFileItemList list = selectedItems();
 321     foreach (const KFileItem &item, list) {
 322         urls.append(item.url());
 323     }
 324     return urls;
 325 }
 326
 327 int DolphinView::selectedItemsCount() const
 328 {
 329     const QAbstractItemView* view = m_viewAccessor.itemView();
 330     if (view == 0) {
 331         return 0;
 332     }
 333
 334     return view->selectionModel()->selectedIndexes().count();
 335 }
 336
 337 QItemSelectionModel* DolphinView::selectionModel() const
 338 {
 339     return m_viewAccessor.itemView()->selectionModel();
 340 }
 341
 342 void DolphinView::setZoomLevel(int level)
 343 {
 344     if (level < ZoomLevelInfo::minimumLevel()) {
 345         level = ZoomLevelInfo::minimumLevel();
 346     } else if (level > ZoomLevelInfo::maximumLevel()) {
 347         level = ZoomLevelInfo::maximumLevel();
 348     }
 349
 350     if (level != zoomLevel()) {
 351         m_viewModeController->setZoomLevel(level);
 352         emit zoomLevelChanged(level);
 353     }
 354 }
 355
 356 int DolphinView::zoomLevel() const
 357 {
 358     return m_viewModeController->zoomLevel();
 359 }
 360
 361 void DolphinView::setSorting(Sorting sorting)
 362 {
 363     if (sorting != this->sorting()) {
 364         updateSorting(sorting);
 365     }
 366 }
 367
 368 DolphinView::Sorting DolphinView::sorting() const
 369 {
 370     return m_viewAccessor.proxyModel()->sorting();
 371 }
 372
 373 void DolphinView::setSortOrder(Qt::SortOrder order)
 374 {
 375     if (sortOrder() != order) {
 376         updateSortOrder(order);
 377     }
 378 }
 379
 380 Qt::SortOrder DolphinView::sortOrder() const
 381 {
 382     return m_viewAccessor.proxyModel()->sortOrder();
 383 }
 384
 385 void DolphinView::setSortFoldersFirst(bool foldersFirst)
 386 {
 387     if (sortFoldersFirst() != foldersFirst) {
 388         updateSortFoldersFirst(foldersFirst);
 389     }
 390 }
 391
 392 bool DolphinView::sortFoldersFirst() const
 393 {
 394     return m_viewAccessor.proxyModel()->sortFoldersFirst();
 395 }
 396
 397 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 398 {
 399     const KUrl viewPropsUrl = rootUrl();
 400     ViewProperties props(viewPropsUrl);
 401     props.setAdditionalInfo(info);
 402     m_viewAccessor.itemDelegate()->setShowInformation(info);
 403
 404     emit additionalInfoChanged();
 405
 406     if (m_viewAccessor.reloadOnAdditionalInfoChange()) {
 407         loadDirectory(viewPropsUrl);
 408     }
 409 }
 410
 411 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 412 {
 413     return m_viewAccessor.itemDelegate()->showInformation();
 414 }
 415
 416 void DolphinView::reload()
 417 {
 418     QByteArray viewState;
 419     QDataStream saveStream(&viewState, QIODevice::WriteOnly);
 420     saveState(saveStream);
 421     m_selectedItems= selectedItems();
 422
 423     setUrl(url());
 424     loadDirectory(url(), true);
 425
 426     QDataStream restoreStream(viewState);
 427     restoreState(restoreStream);
 428 }
 429
 430 void DolphinView::stopLoading()
 431 {
 432     m_viewAccessor.dirLister()->stop();
 433 }
 434
 435 void DolphinView::refresh()
 436 {
 437     const bool oldActivationState = m_active;
 438     const int oldZoomLevel = m_viewModeController->zoomLevel();
 439     m_active = true;
 440
 441     createView();
 442     applyViewProperties();
 443     reload();
 444
 445     setActive(oldActivationState);
 446     updateZoomLevel(oldZoomLevel);
 447 }
 448
 449 void DolphinView::setNameFilter(const QString& nameFilter)
 450 {
 451     m_viewModeController->setNameFilter(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     // The selection model might change in the case of the column view. Disconnect
 539     // from the current selection model and reconnect later after the URL switch.
 540     QAbstractItemView* view = m_viewAccessor.itemView();
 541     disconnect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
 542                this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
 543
 544     m_newFileNames.clear();
 545
 546     m_viewModeController->setUrl(url); // emits urlChanged, which we forward
 547     m_viewAccessor.prepareUrlChange(url);
 548     applyViewProperties();
 549     loadDirectory(url);
 550
 551     // When changing the URL there is no need to keep the version
 552     // data of the previous URL.
 553     m_viewAccessor.dirModel()->clearVersionData();
 554
 555     emit startedPathLoading(url);
 556
 557     // Reconnect to the (probably) new selection model
 558     view = m_viewAccessor.itemView();
 559     connect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
 560             this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
 561 }
 562
 563 void DolphinView::selectAll()
 564 {
 565     m_viewAccessor.itemView()->selectAll();
 566 }
 567
 568 void DolphinView::invertSelection()
 569 {
 570     QItemSelectionModel* selectionModel = m_viewAccessor.itemView()->selectionModel();
 571     const QAbstractItemModel* itemModel = selectionModel->model();
 572
 573     const QModelIndex topLeft = itemModel->index(0, 0);
 574     const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 575                                                      itemModel->columnCount() - 1);
 576
 577     const QItemSelection selection(topLeft, bottomRight);
 578     selectionModel->select(selection, QItemSelectionModel::Toggle);
 579 }
 580
 581 void DolphinView::clearSelection()
 582 {
 583     m_viewAccessor.itemView()->clearSelection();
 584 }
 585
 586 void DolphinView::renameSelectedItems()
 587 {
 588     KFileItemList items = selectedItems();
 589     const int itemCount = items.count();
 590     if (itemCount < 1) {
 591         return;
 592     }
 593
 594     if ((itemCount == 1) && DolphinSettings::instance().generalSettings()->renameInline()) {
 595         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForItem(items.first());
 596         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
 597         m_viewAccessor.itemView()->edit(proxyIndex);
 598     } else {
 599         RenameDialog* dialog = new RenameDialog(this, items);
 600         dialog->setAttribute(Qt::WA_DeleteOnClose);
 601         dialog->show();
 602         dialog->raise();
 603         dialog->activateWindow();
 604     }
 605 }
 606
 607 void DolphinView::trashSelectedItems()
 608 {
 609     const KUrl::List list = simplifiedSelectedUrls();
 610     KonqOperations::del(this, KonqOperations::TRASH, list);
 611 }
 612
 613 void DolphinView::deleteSelectedItems()
 614 {
 615     const KUrl::List list = simplifiedSelectedUrls();
 616     const bool del = KonqOperations::askDeleteConfirmation(list,
 617                      KonqOperations::DEL,
 618                      KonqOperations::DEFAULT_CONFIRMATION,
 619                      this);
 620
 621     if (del) {
 622         KIO::Job* job = KIO::del(list);
 623         connect(job, SIGNAL(result(KJob*)),
 624                 this, SLOT(slotDeleteFileFinished(KJob*)));
 625     }
 626 }
 627
 628 void DolphinView::cutSelectedItems()
 629 {
 630     QMimeData* mimeData = selectionMimeData();
 631     KonqMimeData::addIsCutSelection(mimeData, true);
 632     QApplication::clipboard()->setMimeData(mimeData);
 633 }
 634
 635 void DolphinView::copySelectedItems()
 636 {
 637     QMimeData* mimeData = selectionMimeData();
 638     QApplication::clipboard()->setMimeData(mimeData);
 639 }
 640
 641 void DolphinView::paste()
 642 {
 643     pasteToUrl(url());
 644 }
 645
 646 void DolphinView::pasteIntoFolder()
 647 {
 648     const KFileItemList items = selectedItems();
 649     if ((items.count() == 1) && items.first().isDir()) {
 650         pasteToUrl(items.first().url());
 651     }
 652 }
 653
 654 void DolphinView::setShowPreview(bool show)
 655 {
 656     if (m_showPreview == show) {
 657         return;
 658     }
 659
 660     const KUrl viewPropsUrl = rootUrl();
 661     ViewProperties props(viewPropsUrl);
 662     props.setShowPreview(show);
 663
 664     m_showPreview = show;
 665     const int oldZoomLevel = m_viewModeController->zoomLevel();
 666     emit showPreviewChanged();
 667
 668     // Enabling or disabling the preview might change the icon size of the view.
 669     // As the view does not emit a signal when the icon size has been changed,
 670     // the used zoom level of the controller must be adjusted manually:
 671     updateZoomLevel(oldZoomLevel);
 672 }
 673
 674 void DolphinView::setShowHiddenFiles(bool show)
 675 {
 676     if (m_viewAccessor.dirLister()->showingDotFiles() == show) {
 677         return;
 678     }
 679
 680     const KUrl viewPropsUrl = rootUrl();
 681     ViewProperties props(viewPropsUrl);
 682     props.setShowHiddenFiles(show);
 683
 684     m_viewAccessor.dirLister()->setShowingDotFiles(show);
 685     emit showHiddenFilesChanged();
 686 }
 687
 688 void DolphinView::setCategorizedSorting(bool categorized)
 689 {
 690     if (categorized == categorizedSorting()) {
 691         return;
 692     }
 693
 694     // setCategorizedSorting(true) may only get invoked
 695     // if the view supports categorized sorting
 696     Q_ASSERT(!categorized || supportsCategorizedSorting());
 697
 698     ViewProperties props(rootUrl());
 699     props.setCategorizedSorting(categorized);
 700     props.save();
 701
 702     m_storedCategorizedSorting = categorized;
 703     m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 704
 705     emit categorizedSortingChanged();
 706 }
 707
 708 void DolphinView::toggleSortOrder()
 709 {
 710     const Qt::SortOrder order = (sortOrder() == Qt::AscendingOrder) ?
 711                                 Qt::DescendingOrder :
 712                                 Qt::AscendingOrder;
 713     setSortOrder(order);
 714 }
 715
 716 void DolphinView::toggleSortFoldersFirst()
 717 {
 718     setSortFoldersFirst(!sortFoldersFirst());
 719 }
 720
 721 void DolphinView::toggleAdditionalInfo(QAction* action)
 722 {
 723     const KFileItemDelegate::Information info =
 724         static_cast<KFileItemDelegate::Information>(action->data().toInt());
 725
 726     KFileItemDelegate::InformationList list = additionalInfo();
 727
 728     const bool show = action->isChecked();
 729
 730     const int index = list.indexOf(info);
 731     const bool containsInfo = (index >= 0);
 732     if (show && !containsInfo) {
 733         list.append(info);
 734         setAdditionalInfo(list);
 735     } else if (!show && containsInfo) {
 736         list.removeAt(index);
 737         setAdditionalInfo(list);
 738         Q_ASSERT(list.indexOf(info) < 0);
 739     }
 740 }
 741
 742 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 743 {
 744     QWidget::mouseReleaseEvent(event);
 745     setActive(true);
 746 }
 747
 748 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 749 {
 750     switch (event->type()) {
 751     case QEvent::FocusIn:
 752         if (watched == m_viewAccessor.itemView()) {
 753             m_dolphinViewController->requestActivation();
 754         }
 755         break;
 756
 757     case QEvent::DragEnter:
 758         if (watched == m_viewAccessor.itemView()->viewport()) {
 759             setActive(true);
 760         }
 761         break;
 762
 763     case QEvent::KeyPress:
 764         if (watched == m_viewAccessor.itemView()) {
 765             // clear the selection when Escape has been pressed
 766             QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
 767             if (keyEvent->key() == Qt::Key_Escape) {
 768                 clearSelection();
 769             }
 770         }
 771         break;
 772
 773     case QEvent::Wheel:
 774         if (watched == m_viewAccessor.itemView()->viewport()) {
 775             // Ctrl+wheel events should cause icon zooming, but not if the left mouse button is pressed
 776             // (the user is probably trying to scroll during a selection in that case)
 777             QWheelEvent* wheelEvent = static_cast<QWheelEvent*>(event);
 778             if (wheelEvent->modifiers() & Qt::ControlModifier && !(wheelEvent->buttons() & Qt::LeftButton)) {
 779                 const int delta = wheelEvent->delta();
 780                 const int level = zoomLevel();
 781                 if (delta > 0) {
 782                     setZoomLevel(level + 1);
 783                 } else if (delta < 0) {
 784                     setZoomLevel(level - 1);
 785                 }
 786                 return true;
 787             }
 788         }
 789         break;
 790
 791     default:
 792         break;
 793     }
 794
 795     return QWidget::eventFilter(watched, event);
 796 }
 797
 798 void DolphinView::activate()
 799 {
 800     setActive(true);
 801 }
 802
 803 void DolphinView::triggerItem(const KFileItem& item)
 804 {
 805     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 806     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 807         // items are selected by the user, hence don't trigger the
 808         // item specified by 'index'
 809         return;
 810     }
 811
 812     // TODO: the m_isContextMenuOpen check is a workaround for Qt-issue 207192
 813     if (item.isNull() || m_isContextMenuOpen) {
 814         return;
 815     }
 816
 817     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 818 }
 819
 820 void DolphinView::slotSelectionChanged(const QItemSelection& selected, const QItemSelection& deselected)
 821 {
 822     const int count = selectedItemsCount();
 823     const bool selectionStateChanged = ((count >  0) && (selected.count() == count)) ||
 824                                        ((count == 0) && !deselected.isEmpty());
 825
 826     // If nothing has been selected before and something got selected (or if something
 827     // was selected before and now nothing is selected) the selectionChangedSignal must
 828     // be emitted asynchronously as fast as possible to update the edit-actions.
 829     m_selectionChangedTimer->setInterval(selectionStateChanged ? 0 : 300);
 830     m_selectionChangedTimer->start();
 831 }
 832
 833 void DolphinView::emitSelectionChangedSignal()
 834 {
 835     emit selectionChanged(DolphinView::selectedItems());
 836 }
 837
 838 void DolphinView::openContextMenu(const QPoint& pos,
 839                                   const QList<QAction*>& customActions)
 840 {
 841     KFileItem item;
 842     const QModelIndex index = m_viewAccessor.itemView()->indexAt(pos);
 843     if (index.isValid() && (index.column() == DolphinModel::Name)) {
 844         const QModelIndex dolphinModelIndex = m_viewAccessor.proxyModel()->mapToSource(index);
 845         item = m_viewAccessor.dirModel()->itemForIndex(dolphinModelIndex);
 846     }
 847
 848     m_isContextMenuOpen = true; // TODO: workaround for Qt-issue 207192
 849     emit requestContextMenu(item, url(), customActions);
 850     m_isContextMenuOpen = false;
 851 }
 852
 853 void DolphinView::dropUrls(const KFileItem& destItem,
 854                            const KUrl& destPath,
 855                            QDropEvent* event)
 856 {
 857     addNewFileNames(event->mimeData());
 858     DragAndDropHelper::instance().dropUrls(destItem, destPath, event, this);
 859 }
 860
 861 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 862 {
 863     ViewProperties props(rootUrl());
 864     props.setSorting(sorting);
 865
 866     m_viewAccessor.proxyModel()->setSorting(sorting);
 867
 868     emit sortingChanged(sorting);
 869 }
 870
 871 void DolphinView::updateSortOrder(Qt::SortOrder order)
 872 {
 873     ViewProperties props(rootUrl());
 874     props.setSortOrder(order);
 875
 876     m_viewAccessor.proxyModel()->setSortOrder(order);
 877
 878     emit sortOrderChanged(order);
 879 }
 880
 881 void DolphinView::updateSortFoldersFirst(bool foldersFirst)
 882 {
 883     ViewProperties props(rootUrl());
 884     props.setSortFoldersFirst(foldersFirst);
 885
 886     m_viewAccessor.proxyModel()->setSortFoldersFirst(foldersFirst);
 887
 888     emit sortFoldersFirstChanged(foldersFirst);
 889 }
 890
 891 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 892 {
 893     ViewProperties props(rootUrl());
 894     props.setAdditionalInfo(info);
 895     props.save();
 896
 897     m_viewAccessor.itemDelegate()->setShowInformation(info);
 898
 899     emit additionalInfoChanged();
 900 }
 901
 902 void DolphinView::updateAdditionalInfoActions(KActionCollection* collection)
 903 {
 904     const AdditionalInfoAccessor& infoAccessor = AdditionalInfoAccessor::instance();
 905
 906     const KFileItemDelegate::InformationList checkedInfo = m_viewAccessor.itemDelegate()->showInformation();
 907     const KFileItemDelegate::InformationList infoKeys = infoAccessor.keys();
 908
 909     const bool enable = (m_mode == DolphinView::DetailsView) ||
 910                         (m_mode == DolphinView::IconsView);
 911
 912     foreach (const KFileItemDelegate::Information& info, infoKeys) {
 913         const QString name = infoAccessor.actionCollectionName(info, AdditionalInfoAccessor::AdditionalInfoType);
 914         QAction* action = collection->action(name);
 915         Q_ASSERT(action != 0);
 916         action->setEnabled(enable);
 917         action->setChecked(checkedInfo.contains(info));
 918     }
 919 }
 920
 921 QPair<bool, QString> DolphinView::pasteInfo() const
 922 {
 923     return KonqOperations::pasteInfo(url());
 924 }
 925
 926 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
 927 {
 928     m_tabsForFiles = tabsForFiles;
 929 }
 930
 931 bool DolphinView::isTabsForFilesEnabled() const
 932 {
 933     return m_tabsForFiles;
 934 }
 935
 936 bool DolphinView::itemsExpandable() const
 937 {
 938     return m_viewAccessor.itemsExpandable();
 939 }
 940
 941 void DolphinView::restoreState(QDataStream& stream)
 942 {
 943     // current item
 944     stream >> m_activeItemUrl;
 945
 946     // view position
 947     stream >> m_restoredContentsPosition;
 948
 949     // expanded folders (only relevant for the details view - will be ignored by the view in other view modes)
 950     QSet<KUrl> urlsToExpand;
 951     stream >> urlsToExpand;
 952     const DolphinDetailsViewExpander* expander = m_viewAccessor.setExpandedUrls(urlsToExpand);
 953     if (expander != 0) {
 954         m_expanderActive = true;
 955         connect (expander, SIGNAL(completed()), this, SLOT(slotLoadingCompleted()));
 956     }
 957     else {
 958         m_expanderActive = false;
 959     }
 960 }
 961
 962 void DolphinView::saveState(QDataStream& stream)
 963 {
 964     // current item
 965     KFileItem currentItem;
 966     const QAbstractItemView* view = m_viewAccessor.itemView();
 967
 968     if (view != 0) {
 969         const QModelIndex proxyIndex = view->currentIndex();
 970         const QModelIndex dirModelIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
 971         currentItem = m_viewAccessor.dirModel()->itemForIndex(dirModelIndex);
 972     }
 973
 974     KUrl currentUrl;
 975     if (!currentItem.isNull()) {
 976         currentUrl = currentItem.url();
 977     }
 978
 979     stream << currentUrl;
 980
 981     // view position
 982     const int x = view->horizontalScrollBar()->value();
 983     const int y = view->verticalScrollBar()->value();
 984     stream << QPoint(x, y);
 985
 986     // expanded folders (only relevant for the details view - the set will be empty in other view modes)
 987     stream << m_viewAccessor.expandedUrls();
 988 }
 989
 990 void DolphinView::observeCreatedItem(const KUrl& url)
 991 {
 992     m_createdItemUrl = url;
 993     connect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
 994             this, SLOT(selectAndScrollToCreatedItem()));
 995 }
 996
 997 void DolphinView::selectAndScrollToCreatedItem()
 998 {
 999     const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_createdItemUrl);
1000     if (dirIndex.isValid()) {
1001         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1002         m_viewAccessor.itemView()->setCurrentIndex(proxyIndex);
1003     }
1004
1005     disconnect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
1006                this, SLOT(selectAndScrollToCreatedItem()));
1007     m_createdItemUrl = KUrl();
1008 }
1009
1010 void DolphinView::showHoverInformation(const KFileItem& item)
1011 {
1012     emit requestItemInfo(item);
1013 }
1014
1015 void DolphinView::clearHoverInformation()
1016 {
1017     emit requestItemInfo(KFileItem());
1018 }
1019
1020 void DolphinView::slotDeleteFileFinished(KJob* job)
1021 {
1022     if (job->error() == 0) {
1023         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1024     } else if (job->error() != KIO::ERR_USER_CANCELED) {
1025         emit errorMessage(job->errorString());
1026     }
1027 }
1028
1029 void DolphinView::slotDirListerCompleted()
1030 {
1031     if (!m_expanderActive) {
1032         slotLoadingCompleted();
1033     }
1034
1035     if (!m_newFileNames.isEmpty()) {
1036         // select all newly added items created by a paste operation or
1037         // a drag & drop operation, and clear the previous selection
1038         m_viewAccessor.itemView()->clearSelection();
1039         const int rowCount = m_viewAccessor.proxyModel()->rowCount();
1040         QItemSelection selection;
1041         for (int row = 0; row < rowCount; ++row) {
1042             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->index(row, 0);
1043             const QModelIndex dirIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
1044             const KUrl url = m_viewAccessor.dirModel()->itemForIndex(dirIndex).url();
1045             if (m_newFileNames.contains(url.fileName())) {
1046                 selection.merge(QItemSelection(proxyIndex, proxyIndex), QItemSelectionModel::Select);
1047             }
1048         }
1049         m_viewAccessor.itemView()->selectionModel()->select(selection, QItemSelectionModel::Select);
1050
1051         m_newFileNames.clear();
1052     }
1053 }
1054
1055 void DolphinView::slotLoadingCompleted()
1056 {
1057     m_expanderActive = false;
1058
1059     if (!m_activeItemUrl.isEmpty()) {
1060         // assure that the current item remains visible
1061         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_activeItemUrl);
1062         if (dirIndex.isValid()) {
1063             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1064             QAbstractItemView* view = m_viewAccessor.itemView();
1065             const bool clearSelection = !hasSelection();
1066             view->setCurrentIndex(proxyIndex);
1067             if (clearSelection) {
1068                 view->clearSelection();
1069             }
1070             m_activeItemUrl.clear();
1071         }
1072     }
1073
1074     if (!m_selectedItems.isEmpty()) {
1075         const KUrl& baseUrl = url();
1076         KUrl url;
1077         QItemSelection newSelection;
1078         foreach(const KFileItem& item, m_selectedItems) {
1079             url = item.url().upUrl();
1080             if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
1081                 QModelIndex index = m_viewAccessor.proxyModel()->mapFromSource(m_viewAccessor.dirModel()->indexForItem(item));
1082                 newSelection.select(index, index);
1083             }
1084         }
1085         m_viewAccessor.itemView()->selectionModel()->select(newSelection,
1086                                                             QItemSelectionModel::ClearAndSelect
1087                                                             | QItemSelectionModel::Current);
1088         m_selectedItems.clear();
1089     }
1090
1091     // Restore the contents position. This has to be done using a Qt::QueuedConnection
1092     // because the view might not be in its final state yet.
1093     QMetaObject::invokeMethod(this, "restoreContentsPosition", Qt::QueuedConnection);
1094
1095     emit finishedPathLoading(url());
1096 }
1097
1098 void DolphinView::slotRefreshItems()
1099 {
1100     if (m_assureVisibleCurrentIndex) {
1101         m_assureVisibleCurrentIndex = false;
1102         m_viewAccessor.itemView()->scrollTo(m_viewAccessor.itemView()->currentIndex());
1103     }
1104 }
1105
1106 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1107 {
1108     if (!url.isValid()) {
1109         const QString location(url.pathOrUrl());
1110         if (location.isEmpty()) {
1111             emit errorMessage(i18nc("@info:status", "The location is empty."));
1112         } else {
1113             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1114         }
1115         return;
1116     }
1117
1118     KDirLister* dirLister = m_viewAccessor.dirLister();
1119     dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
1120 }
1121
1122 void DolphinView::applyViewProperties()
1123 {
1124     const ViewProperties props(rootUrl());
1125
1126     const Mode mode = props.viewMode();
1127     if (m_mode != mode) {
1128         const int oldZoomLevel = m_viewModeController->zoomLevel();
1129
1130         m_mode = mode;
1131         createView();
1132         emit modeChanged();
1133
1134         updateZoomLevel(oldZoomLevel);
1135     }
1136     if (m_viewAccessor.itemView() == 0) {
1137         createView();
1138     }
1139     Q_ASSERT(m_viewAccessor.itemView() != 0);
1140     Q_ASSERT(m_viewAccessor.itemDelegate() != 0);
1141
1142     const bool showHiddenFiles = props.showHiddenFiles();
1143     if (showHiddenFiles != m_viewAccessor.dirLister()->showingDotFiles()) {
1144         m_viewAccessor.dirLister()->setShowingDotFiles(showHiddenFiles);
1145         emit showHiddenFilesChanged();
1146     }
1147
1148     m_storedCategorizedSorting = props.categorizedSorting();
1149     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1150     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
1151         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
1152         emit categorizedSortingChanged();
1153     }
1154
1155     const DolphinView::Sorting sorting = props.sorting();
1156     if (sorting != m_viewAccessor.proxyModel()->sorting()) {
1157         m_viewAccessor.proxyModel()->setSorting(sorting);
1158         emit sortingChanged(sorting);
1159     }
1160
1161     const Qt::SortOrder sortOrder = props.sortOrder();
1162     if (sortOrder != m_viewAccessor.proxyModel()->sortOrder()) {
1163         m_viewAccessor.proxyModel()->setSortOrder(sortOrder);
1164         emit sortOrderChanged(sortOrder);
1165     }
1166
1167     const bool sortFoldersFirst = props.sortFoldersFirst();
1168     if (sortFoldersFirst != m_viewAccessor.proxyModel()->sortFoldersFirst()) {
1169         m_viewAccessor.proxyModel()->setSortFoldersFirst(sortFoldersFirst);
1170         emit sortFoldersFirstChanged(sortFoldersFirst);
1171     }
1172
1173     KFileItemDelegate::InformationList info = props.additionalInfo();
1174     if (info != m_viewAccessor.itemDelegate()->showInformation()) {
1175         m_viewAccessor.itemDelegate()->setShowInformation(info);
1176         emit additionalInfoChanged();
1177     }
1178
1179     const bool showPreview = props.showPreview();
1180     if (showPreview != m_showPreview) {
1181         m_showPreview = showPreview;
1182         const int oldZoomLevel = m_viewModeController->zoomLevel();
1183         emit showPreviewChanged();
1184
1185         // Enabling or disabling the preview might change the icon size of the view.
1186         // As the view does not emit a signal when the icon size has been changed,
1187         // the used zoom level of the controller must be adjusted manually:
1188         updateZoomLevel(oldZoomLevel);
1189     }
1190 }
1191
1192 void DolphinView::createView()
1193 {
1194     QAbstractItemView* view = m_viewAccessor.itemView();
1195     if ((view != 0) && (view->selectionModel() != 0)) {
1196         disconnect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
1197                    this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
1198     }
1199
1200     deleteView();
1201
1202     Q_ASSERT(m_viewAccessor.itemView() == 0);
1203     m_viewAccessor.createView(this, m_dolphinViewController, m_viewModeController, m_mode);
1204
1205     view = m_viewAccessor.itemView();
1206     Q_ASSERT(view != 0);
1207     view->installEventFilter(this);
1208     view->viewport()->installEventFilter(this);
1209
1210     m_dolphinViewController->setItemView(view);
1211
1212     const int zoomLevel = ZoomLevelInfo::zoomLevelForIconSize(view->iconSize());
1213     m_viewModeController->setZoomLevel(zoomLevel);
1214
1215     connect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
1216             this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
1217
1218     setFocusProxy(m_viewAccessor.layoutTarget());
1219     m_topLayout->insertWidget(1, m_viewAccessor.layoutTarget());
1220 }
1221
1222 void DolphinView::deleteView()
1223 {
1224     QAbstractItemView* view = m_viewAccessor.itemView();
1225     if (view != 0) {
1226         // It's important to set the keyboard focus to the parent
1227         // before deleting the view: Otherwise when having a split
1228         // view the other view will get the focus and will request
1229         // an activation (see DolphinView::eventFilter()).
1230         setFocusProxy(0);
1231         setFocus();
1232
1233         m_topLayout->removeWidget(view);
1234         view->close();
1235
1236         // disconnect all signal/slots
1237         disconnect(view);
1238         m_viewModeController->disconnect(view);
1239         view->disconnect();
1240
1241         m_viewAccessor.deleteView();
1242     }
1243 }
1244
1245 void DolphinView::pasteToUrl(const KUrl& url)
1246 {
1247     addNewFileNames(QApplication::clipboard()->mimeData());
1248     KonqOperations::doPaste(this, url);
1249 }
1250
1251 void DolphinView::updateZoomLevel(int oldZoomLevel)
1252 {
1253     const int newZoomLevel = ZoomLevelInfo::zoomLevelForIconSize(m_viewAccessor.itemView()->iconSize());
1254     if (oldZoomLevel != newZoomLevel) {
1255         m_viewModeController->setZoomLevel(newZoomLevel);
1256         emit zoomLevelChanged(newZoomLevel);
1257     }
1258 }
1259
1260 KUrl::List DolphinView::simplifiedSelectedUrls() const
1261 {
1262     KUrl::List list = selectedUrls();
1263     if (itemsExpandable() ) {
1264         list = KDirModel::simplifiedUrlList(list);
1265     }
1266     return list;
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     QAbstractItemView* view = itemView();
1336     if (view != 0) {
1337         if (DragAndDropHelper::instance().isDragSource(view)) {
1338             // The view is a drag source (the feature "Open folders
1339             // during drag operations" is used). Deleting the view
1340             // during an ongoing drag operation is not allowed, so
1341             // this will postponed.
1342             if (m_dragSource != 0) {
1343                 // the old stored view is obviously not the drag source anymore
1344                 m_dragSource->deleteLater();
1345                 m_dragSource = 0;
1346             }
1347             view->hide();
1348             m_dragSource = view;
1349         } else {
1350             view->deleteLater();
1351         }
1352     }
1353
1354     m_iconsView = 0;
1355     m_detailsView = 0;
1356
1357     if (m_columnsContainer != 0) {
1358         m_columnsContainer->deleteLater();
1359     }
1360     m_columnsContainer = 0;
1361 }
1362
1363
1364 void DolphinView::ViewAccessor::prepareUrlChange(const KUrl& url)
1365 {
1366     if (m_columnsContainer != 0) {
1367         m_columnsContainer->showColumn(url);
1368     }
1369 }
1370
1371 QAbstractItemView* DolphinView::ViewAccessor::itemView() const
1372 {
1373     if (m_iconsView != 0) {
1374         return m_iconsView;
1375     }
1376
1377     if (m_detailsView != 0) {
1378         return m_detailsView;
1379     }
1380
1381     if (m_columnsContainer != 0) {
1382         return m_columnsContainer->activeColumn();
1383     }
1384
1385     return 0;
1386 }
1387
1388 KFileItemDelegate* DolphinView::ViewAccessor::itemDelegate() const
1389 {
1390     return static_cast<KFileItemDelegate*>(itemView()->itemDelegate());
1391 }
1392
1393 QWidget* DolphinView::ViewAccessor::layoutTarget() const
1394 {
1395     if (m_columnsContainer != 0) {
1396         return m_columnsContainer;
1397     }
1398     return itemView();
1399 }
1400
1401 KUrl DolphinView::ViewAccessor::rootUrl() const
1402 {
1403     return (m_columnsContainer != 0) ? m_columnsContainer->rootUrl() : KUrl();
1404 }
1405
1406 bool DolphinView::ViewAccessor::supportsCategorizedSorting() const
1407 {
1408     return m_iconsView != 0;
1409 }
1410
1411 bool DolphinView::ViewAccessor::itemsExpandable() const
1412 {
1413     return (m_detailsView != 0) && m_detailsView->itemsExpandable();
1414 }
1415
1416
1417 QSet<KUrl> DolphinView::ViewAccessor::expandedUrls() const
1418 {
1419     if (m_detailsView != 0) {
1420         return m_detailsView->expandedUrls();
1421     }
1422
1423     return QSet<KUrl>();
1424 }
1425
1426 const DolphinDetailsViewExpander* DolphinView::ViewAccessor::setExpandedUrls(const QSet<KUrl>& urlsToExpand)
1427 {
1428     if ((m_detailsView != 0) && m_detailsView->itemsExpandable() && !urlsToExpand.isEmpty()) {
1429         // Check if another expander is already active and stop it if necessary.
1430         if(!m_detailsViewExpander.isNull()) {
1431             m_detailsViewExpander->stop();
1432         }
1433
1434         m_detailsViewExpander = new DolphinDetailsViewExpander(m_detailsView, urlsToExpand);
1435         return m_detailsViewExpander;
1436     }
1437     else {
1438         return 0;
1439     }
1440 }
1441
1442 bool DolphinView::ViewAccessor::reloadOnAdditionalInfoChange() const
1443 {
1444     // the details view requires no reloading of the directory, as it maps
1445     // the file item delegate info to its columns internally
1446     return m_detailsView != 0;
1447 }
1448
1449 DolphinModel* DolphinView::ViewAccessor::dirModel() const
1450 {
1451     return static_cast<DolphinModel*>(proxyModel()->sourceModel());
1452 }
1453
1454 DolphinSortFilterProxyModel* DolphinView::ViewAccessor::proxyModel() const
1455 {
1456     if (m_columnsContainer != 0) {
1457         return static_cast<DolphinSortFilterProxyModel*>(m_columnsContainer->activeColumn()->model());
1458     }
1459     return m_proxyModel;
1460 }
1461
1462 KDirLister* DolphinView::ViewAccessor::dirLister() const
1463 {
1464     return dirModel()->dirLister();
1465 }
1466
1467 void DolphinView::slotRedirection(const KUrl& oldUrl, const KUrl& newUrl)
1468 {
1469     if (oldUrl.equals(url(), KUrl::CompareWithoutTrailingSlash)) {
1470         emit redirection(oldUrl, newUrl);
1471         m_viewModeController->redirectToUrl(newUrl); // #186947
1472     }
1473 }
1474
1475 void DolphinView::restoreContentsPosition()
1476 {
1477     if (!m_restoredContentsPosition.isNull()) {
1478         const int x = m_restoredContentsPosition.x();
1479         const int y = m_restoredContentsPosition.y();
1480         m_restoredContentsPosition = QPoint();
1481
1482         QAbstractItemView* view = m_viewAccessor.itemView();
1483         Q_ASSERT(view != 0);
1484         view->horizontalScrollBar()->setValue(x);
1485         view->verticalScrollBar()->setValue(y);
1486     }
1487 }
1488
1489 #include "dolphinview.moc"