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