src/views/dolphinview.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006-2009 by Peter Penz <peter.penz@gmx.at>             *
   3  *   Copyright (C) 2006 by Gregor Kališnik <gregor@podnapisi.net>          *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  19  ***************************************************************************/
  20
  21 #include "dolphinview.h"
  22
  23 #include <QAbstractItemView>
  24 #include <QApplication>
  25 #include <QClipboard>
  26 #include <QKeyEvent>
  27 #include <QItemSelection>
  28 #include <QBoxLayout>
  29 #include <QTimer>
  30 #include <QScrollBar>
  31
  32 #include <kactioncollection.h>
  33 #include <kcolorscheme.h>
  34 #include <kdirlister.h>
  35 #include <kiconeffect.h>
  36 #include <kfileitem.h>
  37 #include <klocale.h>
  38 #include <kio/deletejob.h>
  39 #include <kio/netaccess.h>
  40 #include <kio/previewjob.h>
  41 #include <kjob.h>
  42 #include <kmenu.h>
  43 #include <kmessagebox.h>
  44 #include <konq_fileitemcapabilities.h>
  45 #include <konq_operations.h>
  46 #include <konqmimedata.h>
  47 #include <ktoggleaction.h>
  48 #include <kurl.h>
  49
  50 #include "additionalinfoaccessor.h"
  51 #include "dolphinmodel.h"
  52 #include "dolphincolumnviewcontainer.h"
  53 #include "dolphinviewcontroller.h"
  54 #include "dolphindetailsview.h"
  55 #include "dolphinfileitemdelegate.h"
  56 #include "dolphinnewfilemenuobserver.h"
  57 #include "dolphinsortfilterproxymodel.h"
  58 #include "dolphin_detailsmodesettings.h"
  59 #include "dolphiniconsview.h"
  60 #include "dolphin_generalsettings.h"
  61 #include "draganddrophelper.h"
  62 #include "renamedialog.h"
  63 #include "settings/dolphinsettings.h"
  64 #include "viewmodecontroller.h"
  65 #include "viewproperties.h"
  66 #include "zoomlevelinfo.h"
  67 #include "dolphindetailsviewexpander.h"
  68
  69 DolphinView::DolphinView(QWidget* parent,
  70                          const KUrl& url,
  71                          DolphinSortFilterProxyModel* proxyModel) :
  72     QWidget(parent),
  73     m_active(true),
  74     m_showPreview(false),
  75     m_storedCategorizedSorting(false),
  76     m_tabsForFiles(false),
  77     m_isContextMenuOpen(false),
  78     m_assureVisibleCurrentIndex(false),
  79     m_mode(DolphinView::IconsView),
  80     m_topLayout(0),
  81     m_dolphinViewController(0),
  82     m_viewModeController(0),
  83     m_viewAccessor(proxyModel),
  84     m_selectionChangedTimer(0),
  85     m_activeItemUrl(),
  86     m_restoredContentsPosition(),
  87     m_createdItemUrl(),
  88     m_selectedItems(),
  89     m_newFileNames()
  90 {
  91     m_topLayout = new QVBoxLayout(this);
  92     m_topLayout->setSpacing(0);
  93     m_topLayout->setMargin(0);
  94
  95     m_dolphinViewController = new DolphinViewController(this);
  96
  97     m_viewModeController = new ViewModeController(this);
  98     m_viewModeController->setUrl(url);
  99
 100     connect(m_viewModeController, SIGNAL(urlChanged(const KUrl&)),
 101             this, SIGNAL(urlChanged(const KUrl&)));
 102
 103     connect(m_dolphinViewController, SIGNAL(requestContextMenu(const QPoint&, const QList<QAction*>&)),
 104             this, SLOT(openContextMenu(const QPoint&, const QList<QAction*>&)));
 105     connect(m_dolphinViewController, SIGNAL(urlsDropped(const KFileItem&, const KUrl&, QDropEvent*)),
 106             this, SLOT(dropUrls(const KFileItem&, const KUrl&, QDropEvent*)));
 107     connect(m_dolphinViewController, SIGNAL(sortingChanged(DolphinView::Sorting)),
 108             this, SLOT(updateSorting(DolphinView::Sorting)));
 109     connect(m_dolphinViewController, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 110             this, SLOT(updateSortOrder(Qt::SortOrder)));
 111     connect(m_dolphinViewController, SIGNAL(sortFoldersFirstChanged(bool)),
 112             this, SLOT(updateSortFoldersFirst(bool)));
 113     connect(m_dolphinViewController, SIGNAL(additionalInfoChanged(const KFileItemDelegate::InformationList&)),
 114             this, SLOT(updateAdditionalInfo(const KFileItemDelegate::InformationList&)));
 115     connect(m_dolphinViewController, SIGNAL(itemTriggered(const KFileItem&)),
 116             this, SLOT(triggerItem(const KFileItem&)));
 117     connect(m_dolphinViewController, SIGNAL(tabRequested(const KUrl&)),
 118             this, SIGNAL(tabRequested(const KUrl&)));
 119     connect(m_dolphinViewController, SIGNAL(activated()),
 120             this, SLOT(activate()));
 121     connect(m_dolphinViewController, SIGNAL(itemEntered(const KFileItem&)),
 122             this, SLOT(showHoverInformation(const KFileItem&)));
 123     connect(m_dolphinViewController, SIGNAL(viewportEntered()),
 124             this, SLOT(clearHoverInformation()));
 125     connect(m_dolphinViewController, SIGNAL(urlChangeRequested(KUrl)),
 126             m_viewModeController, SLOT(setUrl(KUrl)));
 127
 128     KDirLister* dirLister = m_viewAccessor.dirLister();
 129     connect(dirLister, SIGNAL(redirection(KUrl,KUrl)),
 130             this, SLOT(slotRedirection(KUrl,KUrl)));
 131     connect(dirLister, SIGNAL(completed()),
 132             this, SLOT(slotDirListerCompleted()));
 133     connect(dirLister, SIGNAL(refreshItems(const QList<QPair<KFileItem,KFileItem>>&)),
 134             this, SLOT(slotRefreshItems()));
 135
 136     // When a new item has been created by the "Create New..." menu, the item should
 137     // get selected and it must be assured that the item will get visible. As the
 138     // creation is done asynchronously, several signals must be checked:
 139     connect(&DolphinNewFileMenuObserver::instance(), SIGNAL(itemCreated(const KUrl&)),
 140             this, SLOT(observeCreatedItem(const KUrl&)));
 141
 142     m_selectionChangedTimer = new QTimer(this);
 143     m_selectionChangedTimer->setSingleShot(true);
 144     m_selectionChangedTimer->setInterval(300);
 145     connect(m_selectionChangedTimer, SIGNAL(timeout()),
 146             this, SLOT(emitSelectionChangedSignal()));
 147
 148     applyViewProperties();
 149     m_topLayout->addWidget(m_viewAccessor.layoutTarget());
 150 }
 151
 152 DolphinView::~DolphinView()
 153 {
 154 }
 155
 156 KUrl DolphinView::url() const
 157 {
 158     return m_viewModeController->url();
 159 }
 160
 161 KUrl DolphinView::rootUrl() const
 162 {
 163     const KUrl viewUrl = url();
 164     const KUrl root = m_viewAccessor.rootUrl();
 165     if (root.isEmpty() || !root.isParentOf(viewUrl)) {
 166         return viewUrl;
 167     }
 168     return root;
 169 }
 170
 171 void DolphinView::setActive(bool active)
 172 {
 173     if (active == m_active) {
 174         return;
 175     }
 176
 177     m_active = active;
 178
 179     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 180     if (active) {
 181         emitSelectionChangedSignal();
 182     } else {
 183         color.setAlpha(150);
 184     }
 185
 186     QWidget* viewport = m_viewAccessor.itemView()->viewport();
 187     QPalette palette;
 188     palette.setColor(viewport->backgroundRole(), color);
 189     viewport->setPalette(palette);
 190
 191     update();
 192
 193     if (active) {
 194         m_viewAccessor.itemView()->setFocus();
 195         emit activated();
 196     }
 197
 198     m_viewModeController->indicateActivationChange(active);
 199 }
 200
 201 bool DolphinView::isActive() const
 202 {
 203     return m_active;
 204 }
 205
 206 void DolphinView::setMode(Mode mode)
 207 {
 208     if (mode == m_mode) {
 209         return; // the wished mode is already set
 210     }
 211
 212     const int oldZoomLevel = m_viewModeController->zoomLevel();
 213     m_mode = mode;
 214
 215     // remember the currently selected items, so that they will
 216     // be restored after reloading the directory
 217     m_selectedItems = selectedItems();
 218
 219     deleteView();
 220
 221     const KUrl viewPropsUrl = rootUrl();
 222     ViewProperties props(viewPropsUrl);
 223     props.setViewMode(m_mode);
 224     createView();
 225
 226     // the file item delegate has been recreated, apply the current
 227     // additional information manually
 228     const KFileItemDelegate::InformationList infoList = props.additionalInfo();
 229     m_viewAccessor.itemDelegate()->setShowInformation(infoList);
 230     emit additionalInfoChanged();
 231
 232     // Not all view modes support categorized sorting. Adjust the sorting model
 233     // if changing the view mode results in a change of the categorized sorting
 234     // capabilities.
 235     m_storedCategorizedSorting = props.categorizedSorting();
 236     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 237     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
 238         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 239         emit categorizedSortingChanged();
 240     }
 241
 242     emit modeChanged();
 243
 244     updateZoomLevel(oldZoomLevel);
 245     loadDirectory(viewPropsUrl);
 246 }
 247
 248 DolphinView::Mode DolphinView::mode() const
 249 {
 250     return m_mode;
 251 }
 252
 253 bool DolphinView::showPreview() const
 254 {
 255     return m_showPreview;
 256 }
 257
 258 bool DolphinView::showHiddenFiles() const
 259 {
 260     return m_viewAccessor.dirLister()->showingDotFiles();
 261 }
 262
 263 bool DolphinView::categorizedSorting() const
 264 {
 265     // If all view modes would support categorized sorting, returning
 266     // m_viewAccessor.proxyModel()->isCategorizedModel() would be the way to go. As
 267     // currently only the icons view supports caterized sorting, we remember
 268     // the stored view properties state in m_storedCategorizedSorting and
 269     // return this state. The application takes care to disable the corresponding
 270     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 271     // that this setting is not applied to the current view mode.
 272     return m_storedCategorizedSorting;
 273 }
 274
 275 bool DolphinView::supportsCategorizedSorting() const
 276 {
 277     return m_viewAccessor.supportsCategorizedSorting();
 278 }
 279
 280 KFileItemList DolphinView::items() const
 281 {
 282     return m_viewAccessor.dirLister()->items();
 283 }
 284
 285 KFileItemList DolphinView::selectedItems() const
 286 {
 287     KFileItemList itemList;
 288     const QAbstractItemView* view = m_viewAccessor.itemView();
 289     if (view == 0) {
 290         return itemList;
 291     }
 292
 293     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
 294
 295     const QModelIndexList indexList = selection.indexes();
 296     foreach (const QModelIndex &index, indexList) {
 297         KFileItem item = m_viewAccessor.dirModel()->itemForIndex(index);
 298         if (!item.isNull()) {
 299             itemList.append(item);
 300         }
 301     }
 302
 303     return itemList;
 304 }
 305
 306 int DolphinView::selectedItemsCount() const
 307 {
 308     const QAbstractItemView* view = m_viewAccessor.itemView();
 309     if (view == 0) {
 310         return 0;
 311     }
 312
 313     return view->selectionModel()->selectedIndexes().count();
 314 }
 315
 316 void DolphinView::markUrlsAsSelected(const QList<KUrl>& urls)
 317 {
 318     foreach (const KUrl& url, urls) {
 319         KFileItem item(KFileItem::Unknown, KFileItem::Unknown, url);
 320         m_selectedItems.append(item);
 321     }
 322 }
 323
 324 void DolphinView::setItemSelectionEnabled(const QRegExp& pattern, bool enabled)
 325 {
 326     const QItemSelection matchingIndexes = childrenMatchingPattern(QModelIndex(), pattern);
 327     const QItemSelectionModel::SelectionFlags command = enabled
 328                                                       ? QItemSelectionModel::Select
 329                                                       : QItemSelectionModel::Deselect;
 330     m_viewAccessor.itemView()->selectionModel()->select(matchingIndexes, command);
 331 }
 332
 333 void DolphinView::setZoomLevel(int level)
 334 {
 335     if (level < ZoomLevelInfo::minimumLevel()) {
 336         level = ZoomLevelInfo::minimumLevel();
 337     } else if (level > ZoomLevelInfo::maximumLevel()) {
 338         level = ZoomLevelInfo::maximumLevel();
 339     }
 340
 341     if (level != zoomLevel()) {
 342         m_viewModeController->setZoomLevel(level);
 343         emit zoomLevelChanged(level);
 344     }
 345 }
 346
 347 int DolphinView::zoomLevel() const
 348 {
 349     return m_viewModeController->zoomLevel();
 350 }
 351
 352 void DolphinView::setSorting(Sorting sorting)
 353 {
 354     if (sorting != this->sorting()) {
 355         updateSorting(sorting);
 356     }
 357 }
 358
 359 DolphinView::Sorting DolphinView::sorting() const
 360 {
 361     return m_viewAccessor.proxyModel()->sorting();
 362 }
 363
 364 void DolphinView::setSortOrder(Qt::SortOrder order)
 365 {
 366     if (sortOrder() != order) {
 367         updateSortOrder(order);
 368     }
 369 }
 370
 371 Qt::SortOrder DolphinView::sortOrder() const
 372 {
 373     return m_viewAccessor.proxyModel()->sortOrder();
 374 }
 375
 376 void DolphinView::setSortFoldersFirst(bool foldersFirst)
 377 {
 378     if (sortFoldersFirst() != foldersFirst) {
 379         updateSortFoldersFirst(foldersFirst);
 380     }
 381 }
 382
 383 bool DolphinView::sortFoldersFirst() const
 384 {
 385     return m_viewAccessor.proxyModel()->sortFoldersFirst();
 386 }
 387
 388 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 389 {
 390     const KUrl viewPropsUrl = rootUrl();
 391     ViewProperties props(viewPropsUrl);
 392     props.setAdditionalInfo(info);
 393     m_viewAccessor.itemDelegate()->setShowInformation(info);
 394
 395     emit additionalInfoChanged();
 396
 397     if (m_viewAccessor.reloadOnAdditionalInfoChange()) {
 398         loadDirectory(viewPropsUrl);
 399     }
 400 }
 401
 402 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 403 {
 404     return m_viewAccessor.itemDelegate()->showInformation();
 405 }
 406
 407 void DolphinView::reload()
 408 {
 409     QByteArray viewState;
 410     QDataStream saveStream(&viewState, QIODevice::WriteOnly);
 411     saveState(saveStream);
 412     m_selectedItems= selectedItems();
 413
 414     setUrl(url());
 415     loadDirectory(url(), true);
 416
 417     QDataStream restoreStream(viewState);
 418     restoreState(restoreStream);
 419 }
 420
 421 void DolphinView::stopLoading()
 422 {
 423     m_viewAccessor.dirLister()->stop();
 424 }
 425
 426 void DolphinView::refresh()
 427 {
 428     const bool oldActivationState = m_active;
 429     const int oldZoomLevel = m_viewModeController->zoomLevel();
 430     m_active = true;
 431
 432     createView();
 433     applyViewProperties();
 434     reload();
 435
 436     setActive(oldActivationState);
 437     updateZoomLevel(oldZoomLevel);
 438 }
 439
 440 void DolphinView::setNameFilter(const QString& nameFilter)
 441 {
 442     m_viewModeController->setNameFilter(nameFilter);
 443 }
 444
 445 void DolphinView::calculateItemCount(int& fileCount,
 446                                      int& folderCount,
 447                                      KIO::filesize_t& totalFileSize) const
 448 {
 449     foreach (const KFileItem& item, m_viewAccessor.dirLister()->items()) {
 450         if (item.isDir()) {
 451             ++folderCount;
 452         } else {
 453             ++fileCount;
 454             totalFileSize += item.size();
 455         }
 456     }
 457 }
 458
 459 QString DolphinView::statusBarText() const
 460 {
 461     QString text;
 462     int folderCount = 0;
 463     int fileCount = 0;
 464     KIO::filesize_t totalFileSize = 0;
 465
 466     if (hasSelection()) {
 467         // give a summary of the status of the selected files
 468         const KFileItemList list = selectedItems();
 469         if (list.isEmpty()) {
 470             // when an item is triggered, it is temporary selected but selectedItems()
 471             // will return an empty list
 472             return text;
 473         }
 474
 475         KFileItemList::const_iterator it = list.begin();
 476         const KFileItemList::const_iterator end = list.end();
 477         while (it != end) {
 478             const KFileItem& item = *it;
 479             if (item.isDir()) {
 480                 ++folderCount;
 481             } else {
 482                 ++fileCount;
 483                 totalFileSize += item.size();
 484             }
 485             ++it;
 486         }
 487
 488         if (folderCount + fileCount == 1) {
 489             // if only one item is selected, show the filename
 490             const QString name = list.first().text();
 491             text = (folderCount == 1) ? i18nc("@info:status", "<filename>%1</filename> selected", name) :
 492                                         i18nc("@info:status", "<filename>%1</filename> selected (%2)",
 493                                               name, KIO::convertSize(totalFileSize));
 494         } else {
 495             // at least 2 items are selected
 496             const QString foldersText = i18ncp("@info:status", "1 Folder selected", "%1 Folders selected", folderCount);
 497             const QString filesText = i18ncp("@info:status", "1 File selected", "%1 Files selected", fileCount);
 498             if ((folderCount > 0) && (fileCount > 0)) {
 499                 text = i18nc("@info:status folders, files (size)", "%1, %2 (%3)",
 500                              foldersText, filesText, KIO::convertSize(totalFileSize));
 501             } else if (fileCount > 0) {
 502                 text = i18nc("@info:status files (size)", "%1 (%2)", filesText, KIO::convertSize(totalFileSize));
 503             } else {
 504                 Q_ASSERT(folderCount > 0);
 505                 text = foldersText;
 506             }
 507         }
 508     } else {
 509         calculateItemCount(fileCount, folderCount, totalFileSize);
 510         text = KIO::itemsSummaryString(fileCount + folderCount,
 511                                        fileCount, folderCount,
 512                                        totalFileSize, true);
 513     }
 514
 515     return text;
 516 }
 517
 518 QList<QAction*> DolphinView::versionControlActions(const KFileItemList& items) const
 519 {
 520     return m_dolphinViewController->versionControlActions(items);
 521 }
 522
 523 void DolphinView::setUrl(const KUrl& url)
 524 {
 525     if (m_viewModeController->url() == url) {
 526         return;
 527     }
 528
 529     // The selection model might change in the case of the column view. Disconnect
 530     // from the current selection model and reconnect later after the URL switch.
 531     const bool hadSelection = hasSelection();
 532     QAbstractItemView* view = m_viewAccessor.itemView();
 533     disconnect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
 534                this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
 535
 536     m_newFileNames.clear();
 537
 538     m_viewModeController->setUrl(url); // emits urlChanged, which we forward
 539     m_viewAccessor.prepareUrlChange(url);
 540     applyViewProperties();
 541     loadDirectory(url);
 542
 543     // When changing the URL there is no need to keep the version
 544     // data of the previous URL.
 545     m_viewAccessor.dirModel()->clearVersionData();
 546
 547     emit startedPathLoading(url);
 548
 549     // Reconnect to the (probably) new selection model
 550     view = m_viewAccessor.itemView();
 551     connect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
 552             this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
 553     if (hadSelection || hasSelection()) {
 554         emitSelectionChangedSignal();
 555     }
 556 }
 557
 558 void DolphinView::selectAll()
 559 {
 560     m_viewAccessor.itemView()->selectAll();
 561 }
 562
 563 void DolphinView::invertSelection()
 564 {
 565     QItemSelectionModel* selectionModel = m_viewAccessor.itemView()->selectionModel();
 566     const QAbstractItemModel* itemModel = selectionModel->model();
 567
 568     const QModelIndex topLeft = itemModel->index(0, 0);
 569     const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 570                                                      itemModel->columnCount() - 1);
 571
 572     const QItemSelection selection(topLeft, bottomRight);
 573     selectionModel->select(selection, QItemSelectionModel::Toggle);
 574 }
 575
 576 void DolphinView::clearSelection()
 577 {
 578     m_viewAccessor.itemView()->clearSelection();
 579 }
 580
 581 void DolphinView::renameSelectedItems()
 582 {
 583     KFileItemList items = selectedItems();
 584     const int itemCount = items.count();
 585     if (itemCount < 1) {
 586         return;
 587     }
 588
 589     if ((itemCount == 1) && DolphinSettings::instance().generalSettings()->renameInline()) {
 590         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForItem(items.first());
 591         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
 592         m_viewAccessor.itemView()->edit(proxyIndex);
 593     } else {
 594         RenameDialog* dialog = new RenameDialog(this, items);
 595         dialog->setAttribute(Qt::WA_DeleteOnClose);
 596         dialog->show();
 597         dialog->raise();
 598         dialog->activateWindow();
 599     }
 600 }
 601
 602 void DolphinView::trashSelectedItems()
 603 {
 604     const KUrl::List list = simplifiedSelectedUrls();
 605     KonqOperations::del(this, KonqOperations::TRASH, list);
 606 }
 607
 608 void DolphinView::deleteSelectedItems()
 609 {
 610     const KUrl::List list = simplifiedSelectedUrls();
 611     const bool del = KonqOperations::askDeleteConfirmation(list,
 612                      KonqOperations::DEL,
 613                      KonqOperations::DEFAULT_CONFIRMATION,
 614                      this);
 615
 616     if (del) {
 617         KIO::Job* job = KIO::del(list);
 618         connect(job, SIGNAL(result(KJob*)),
 619                 this, SLOT(slotDeleteFileFinished(KJob*)));
 620     }
 621 }
 622
 623 void DolphinView::cutSelectedItems()
 624 {
 625     QMimeData* mimeData = selectionMimeData();
 626     KonqMimeData::addIsCutSelection(mimeData, true);
 627     QApplication::clipboard()->setMimeData(mimeData);
 628 }
 629
 630 void DolphinView::copySelectedItems()
 631 {
 632     QMimeData* mimeData = selectionMimeData();
 633     QApplication::clipboard()->setMimeData(mimeData);
 634 }
 635
 636 void DolphinView::paste()
 637 {
 638     pasteToUrl(url());
 639 }
 640
 641 void DolphinView::pasteIntoFolder()
 642 {
 643     const KFileItemList items = selectedItems();
 644     if ((items.count() == 1) && items.first().isDir()) {
 645         pasteToUrl(items.first().url());
 646     }
 647 }
 648
 649 void DolphinView::setShowPreview(bool show)
 650 {
 651     if (m_showPreview == show) {
 652         return;
 653     }
 654
 655     const KUrl viewPropsUrl = rootUrl();
 656     ViewProperties props(viewPropsUrl);
 657     props.setShowPreview(show);
 658
 659     m_showPreview = show;
 660     const int oldZoomLevel = m_viewModeController->zoomLevel();
 661     emit showPreviewChanged();
 662
 663     // Enabling or disabling the preview might change the icon size of the view.
 664     // As the view does not emit a signal when the icon size has been changed,
 665     // the used zoom level of the controller must be adjusted manually:
 666     updateZoomLevel(oldZoomLevel);
 667 }
 668
 669 void DolphinView::setShowHiddenFiles(bool show)
 670 {
 671     if (m_viewAccessor.dirLister()->showingDotFiles() == show) {
 672         return;
 673     }
 674
 675     const KUrl viewPropsUrl = rootUrl();
 676     ViewProperties props(viewPropsUrl);
 677     props.setShowHiddenFiles(show);
 678
 679     m_viewAccessor.dirLister()->setShowingDotFiles(show);
 680     emit showHiddenFilesChanged();
 681 }
 682
 683 void DolphinView::setCategorizedSorting(bool categorized)
 684 {
 685     if (categorized == categorizedSorting()) {
 686         return;
 687     }
 688
 689     // setCategorizedSorting(true) may only get invoked
 690     // if the view supports categorized sorting
 691     Q_ASSERT(!categorized || supportsCategorizedSorting());
 692
 693     ViewProperties props(rootUrl());
 694     props.setCategorizedSorting(categorized);
 695     props.save();
 696
 697     m_storedCategorizedSorting = categorized;
 698     m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 699
 700     emit categorizedSortingChanged();
 701 }
 702
 703 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 704 {
 705     QWidget::mouseReleaseEvent(event);
 706     setActive(true);
 707 }
 708
 709 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 710 {
 711     switch (event->type()) {
 712     case QEvent::FocusIn:
 713         if (watched == m_viewAccessor.itemView()) {
 714             m_dolphinViewController->requestActivation();
 715         }
 716         break;
 717
 718     case QEvent::DragEnter:
 719         if (watched == m_viewAccessor.itemView()->viewport()) {
 720             setActive(true);
 721         }
 722         break;
 723
 724     case QEvent::KeyPress:
 725         if (watched == m_viewAccessor.itemView()) {
 726             // clear the selection when Escape has been pressed
 727             QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
 728             if (keyEvent->key() == Qt::Key_Escape) {
 729                 clearSelection();
 730             }
 731         }
 732         break;
 733
 734     case QEvent::Wheel:
 735         if (watched == m_viewAccessor.itemView()->viewport()) {
 736             // Ctrl+wheel events should cause icon zooming, but not if the left mouse button is pressed
 737             // (the user is probably trying to scroll during a selection in that case)
 738             QWheelEvent* wheelEvent = static_cast<QWheelEvent*>(event);
 739             if (wheelEvent->modifiers() & Qt::ControlModifier && !(wheelEvent->buttons() & Qt::LeftButton)) {
 740                 const int delta = wheelEvent->delta();
 741                 const int level = zoomLevel();
 742                 if (delta > 0) {
 743                     setZoomLevel(level + 1);
 744                 } else if (delta < 0) {
 745                     setZoomLevel(level - 1);
 746                 }
 747                 return true;
 748             }
 749         }
 750         break;
 751
 752     default:
 753         break;
 754     }
 755
 756     return QWidget::eventFilter(watched, event);
 757 }
 758
 759 void DolphinView::activate()
 760 {
 761     setActive(true);
 762 }
 763
 764 void DolphinView::triggerItem(const KFileItem& item)
 765 {
 766     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 767     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 768         // items are selected by the user, hence don't trigger the
 769         // item specified by 'index'
 770         return;
 771     }
 772
 773     // TODO: the m_isContextMenuOpen check is a workaround for Qt-issue 207192
 774     if (item.isNull() || m_isContextMenuOpen) {
 775         return;
 776     }
 777
 778     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 779 }
 780
 781 void DolphinView::slotSelectionChanged(const QItemSelection& selected, const QItemSelection& deselected)
 782 {
 783     const int count = selectedItemsCount();
 784     const bool selectionStateChanged = ((count >  0) && (selected.count() == count)) ||
 785                                        ((count == 0) && !deselected.isEmpty());
 786
 787     // If nothing has been selected before and something got selected (or if something
 788     // was selected before and now nothing is selected) the selectionChangedSignal must
 789     // be emitted asynchronously as fast as possible to update the edit-actions.
 790     m_selectionChangedTimer->setInterval(selectionStateChanged ? 0 : 300);
 791     m_selectionChangedTimer->start();
 792 }
 793
 794 void DolphinView::emitSelectionChangedSignal()
 795 {
 796     m_selectionChangedTimer->stop();
 797     emit selectionChanged(selectedItems());
 798 }
 799
 800 void DolphinView::openContextMenu(const QPoint& pos,
 801                                   const QList<QAction*>& customActions)
 802 {
 803     KFileItem item;
 804     const QModelIndex index = m_viewAccessor.itemView()->indexAt(pos);
 805     if (index.isValid() && (index.column() == DolphinModel::Name)) {
 806         const QModelIndex dolphinModelIndex = m_viewAccessor.proxyModel()->mapToSource(index);
 807         item = m_viewAccessor.dirModel()->itemForIndex(dolphinModelIndex);
 808     }
 809
 810     m_isContextMenuOpen = true; // TODO: workaround for Qt-issue 207192
 811     emit requestContextMenu(item, url(), customActions);
 812     m_isContextMenuOpen = false;
 813 }
 814
 815 void DolphinView::dropUrls(const KFileItem& destItem,
 816                            const KUrl& destPath,
 817                            QDropEvent* event)
 818 {
 819     addNewFileNames(event->mimeData());
 820     DragAndDropHelper::instance().dropUrls(destItem, destPath, event, this);
 821 }
 822
 823 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 824 {
 825     ViewProperties props(rootUrl());
 826     props.setSorting(sorting);
 827
 828     m_viewAccessor.proxyModel()->setSorting(sorting);
 829
 830     emit sortingChanged(sorting);
 831 }
 832
 833 void DolphinView::updateSortOrder(Qt::SortOrder order)
 834 {
 835     ViewProperties props(rootUrl());
 836     props.setSortOrder(order);
 837
 838     m_viewAccessor.proxyModel()->setSortOrder(order);
 839
 840     emit sortOrderChanged(order);
 841 }
 842
 843 void DolphinView::updateSortFoldersFirst(bool foldersFirst)
 844 {
 845     ViewProperties props(rootUrl());
 846     props.setSortFoldersFirst(foldersFirst);
 847
 848     m_viewAccessor.proxyModel()->setSortFoldersFirst(foldersFirst);
 849
 850     emit sortFoldersFirstChanged(foldersFirst);
 851 }
 852
 853 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 854 {
 855     ViewProperties props(rootUrl());
 856     props.setAdditionalInfo(info);
 857     props.save();
 858
 859     m_viewAccessor.itemDelegate()->setShowInformation(info);
 860
 861     emit additionalInfoChanged();
 862 }
 863
 864 void DolphinView::updateAdditionalInfoActions(KActionCollection* collection)
 865 {
 866     const AdditionalInfoAccessor& infoAccessor = AdditionalInfoAccessor::instance();
 867
 868     const KFileItemDelegate::InformationList checkedInfo = m_viewAccessor.itemDelegate()->showInformation();
 869     const KFileItemDelegate::InformationList infoKeys = infoAccessor.keys();
 870
 871     const bool enable = (m_mode == DolphinView::DetailsView) ||
 872                         (m_mode == DolphinView::IconsView);
 873
 874     foreach (const KFileItemDelegate::Information& info, infoKeys) {
 875         const QString name = infoAccessor.actionCollectionName(info, AdditionalInfoAccessor::AdditionalInfoType);
 876         QAction* action = collection->action(name);
 877         Q_ASSERT(action != 0);
 878         action->setEnabled(enable);
 879         action->setChecked(checkedInfo.contains(info));
 880     }
 881 }
 882
 883 QPair<bool, QString> DolphinView::pasteInfo() const
 884 {
 885     return KonqOperations::pasteInfo(url());
 886 }
 887
 888 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
 889 {
 890     m_tabsForFiles = tabsForFiles;
 891 }
 892
 893 bool DolphinView::isTabsForFilesEnabled() const
 894 {
 895     return m_tabsForFiles;
 896 }
 897
 898 bool DolphinView::itemsExpandable() const
 899 {
 900     return m_viewAccessor.itemsExpandable();
 901 }
 902
 903 void DolphinView::restoreState(QDataStream& stream)
 904 {
 905     // Restore the URL of the current item that had the keyboard focus
 906     stream >> m_activeItemUrl;
 907
 908     // Restore the root URL
 909     KUrl rootUrl;
 910     stream >> rootUrl;
 911     m_viewAccessor.setRootUrl(rootUrl);
 912
 913     // Restore the view position
 914     stream >> m_restoredContentsPosition;
 915
 916     // Restore expanded folders (only relevant for the details view - will be ignored by the view in other view modes)
 917     QSet<KUrl> urlsToExpand;
 918     stream >> urlsToExpand;
 919     const DolphinDetailsViewExpander* expander = m_viewAccessor.setExpandedUrls(urlsToExpand);
 920     if (expander != 0) {
 921         m_expanderActive = true;
 922         connect (expander, SIGNAL(completed()), this, SLOT(slotLoadingCompleted()));
 923     }
 924     else {
 925         m_expanderActive = false;
 926     }
 927 }
 928
 929 void DolphinView::saveState(QDataStream& stream)
 930 {
 931     // Save the URL of the current item that has the keyboard focus
 932     KFileItem currentItem;
 933     const QAbstractItemView* view = m_viewAccessor.itemView();
 934
 935     if (view != 0) {
 936         const QModelIndex proxyIndex = view->currentIndex();
 937         const QModelIndex dirModelIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
 938         currentItem = m_viewAccessor.dirModel()->itemForIndex(dirModelIndex);
 939     }
 940
 941     KUrl currentItemUrl;
 942     if (!currentItem.isNull()) {
 943         currentItemUrl = currentItem.url();
 944     }
 945
 946     stream << currentItemUrl;
 947
 948     // Save the root URL
 949     stream << m_viewAccessor.rootUrl();
 950
 951     // Save view position
 952     const int x = view->horizontalScrollBar()->value();
 953     const int y = view->verticalScrollBar()->value();
 954     stream << QPoint(x, y);
 955
 956     // Save expanded folders (only relevant for the details view - the set will be empty in other view modes)
 957     stream << m_viewAccessor.expandedUrls();
 958 }
 959
 960 bool DolphinView::hasSelection() const
 961 {
 962     const QAbstractItemView* view = m_viewAccessor.itemView();
 963     return (view != 0) && view->selectionModel()->hasSelection();
 964 }
 965
 966 void DolphinView::observeCreatedItem(const KUrl& url)
 967 {
 968     m_createdItemUrl = url;
 969     connect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
 970             this, SLOT(selectAndScrollToCreatedItem()));
 971 }
 972
 973 void DolphinView::selectAndScrollToCreatedItem()
 974 {
 975     const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_createdItemUrl);
 976     if (dirIndex.isValid()) {
 977         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
 978         m_viewAccessor.itemView()->setCurrentIndex(proxyIndex);
 979     }
 980
 981     disconnect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
 982                this, SLOT(selectAndScrollToCreatedItem()));
 983     m_createdItemUrl = KUrl();
 984 }
 985
 986 void DolphinView::showHoverInformation(const KFileItem& item)
 987 {
 988     emit requestItemInfo(item);
 989 }
 990
 991 void DolphinView::clearHoverInformation()
 992 {
 993     emit requestItemInfo(KFileItem());
 994 }
 995
 996 void DolphinView::slotDeleteFileFinished(KJob* job)
 997 {
 998     if (job->error() == 0) {
 999         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1000     } else if (job->error() != KIO::ERR_USER_CANCELED) {
1001         emit errorMessage(job->errorString());
1002     }
1003 }
1004
1005 void DolphinView::slotDirListerCompleted()
1006 {
1007     if (!m_expanderActive) {
1008         slotLoadingCompleted();
1009     }
1010
1011     if (!m_newFileNames.isEmpty()) {
1012         // select all newly added items created by a paste operation or
1013         // a drag & drop operation, and clear the previous selection
1014         m_viewAccessor.itemView()->clearSelection();
1015         const int rowCount = m_viewAccessor.proxyModel()->rowCount();
1016         QItemSelection selection;
1017         for (int row = 0; row < rowCount; ++row) {
1018             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->index(row, 0);
1019             const QModelIndex dirIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
1020             const KUrl url = m_viewAccessor.dirModel()->itemForIndex(dirIndex).url();
1021             if (m_newFileNames.contains(url.fileName())) {
1022                 selection.merge(QItemSelection(proxyIndex, proxyIndex), QItemSelectionModel::Select);
1023             }
1024         }
1025         m_viewAccessor.itemView()->selectionModel()->select(selection, QItemSelectionModel::Select);
1026
1027         m_newFileNames.clear();
1028     }
1029 }
1030
1031 void DolphinView::slotLoadingCompleted()
1032 {
1033     m_expanderActive = false;
1034
1035     if (!m_activeItemUrl.isEmpty()) {
1036         // assure that the current item remains visible
1037         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_activeItemUrl);
1038         if (dirIndex.isValid()) {
1039             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1040             QAbstractItemView* view = m_viewAccessor.itemView();
1041             const bool clearSelection = !hasSelection();
1042             view->setCurrentIndex(proxyIndex);
1043             if (clearSelection) {
1044                 view->clearSelection();
1045             }
1046             m_activeItemUrl.clear();
1047         }
1048     }
1049
1050     if (!m_selectedItems.isEmpty()) {
1051         const KUrl& baseUrl = url();
1052         KUrl url;
1053         QItemSelection newSelection;
1054         foreach(const KFileItem& item, m_selectedItems) {
1055             url = item.url().upUrl();
1056             if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
1057                 QModelIndex index = m_viewAccessor.proxyModel()->mapFromSource(m_viewAccessor.dirModel()->indexForItem(item));
1058                 newSelection.select(index, index);
1059             }
1060         }
1061         m_viewAccessor.itemView()->selectionModel()->select(newSelection,
1062                                                             QItemSelectionModel::ClearAndSelect
1063                                                             | QItemSelectionModel::Current);
1064         m_selectedItems.clear();
1065     }
1066
1067     // Restore the contents position. This has to be done using a Qt::QueuedConnection
1068     // because the view might not be in its final state yet.
1069     QMetaObject::invokeMethod(this, "restoreContentsPosition", Qt::QueuedConnection);
1070
1071     emit finishedPathLoading(url());
1072 }
1073
1074 void DolphinView::slotRefreshItems()
1075 {
1076     if (m_assureVisibleCurrentIndex) {
1077         m_assureVisibleCurrentIndex = false;
1078         m_viewAccessor.itemView()->scrollTo(m_viewAccessor.itemView()->currentIndex());
1079     }
1080 }
1081
1082 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1083 {
1084     if (!url.isValid()) {
1085         const QString location(url.pathOrUrl());
1086         if (location.isEmpty()) {
1087             emit errorMessage(i18nc("@info:status", "The location is empty."));
1088         } else {
1089             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1090         }
1091         return;
1092     }
1093
1094     KDirLister* dirLister = m_viewAccessor.dirLister();
1095     dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
1096 }
1097
1098 void DolphinView::applyViewProperties()
1099 {
1100     const ViewProperties props(rootUrl());
1101
1102     const Mode mode = props.viewMode();
1103     if (m_mode != mode) {
1104         const int oldZoomLevel = m_viewModeController->zoomLevel();
1105
1106         m_mode = mode;
1107         createView();
1108         emit modeChanged();
1109
1110         updateZoomLevel(oldZoomLevel);
1111     }
1112     if (m_viewAccessor.itemView() == 0) {
1113         createView();
1114     }
1115
1116     Q_ASSERT(m_viewAccessor.itemView() != 0);
1117     Q_ASSERT(m_viewAccessor.itemDelegate() != 0);
1118
1119     const bool showHiddenFiles = props.showHiddenFiles();
1120     if (showHiddenFiles != m_viewAccessor.dirLister()->showingDotFiles()) {
1121         m_viewAccessor.dirLister()->setShowingDotFiles(showHiddenFiles);
1122         emit showHiddenFilesChanged();
1123     }
1124
1125     m_storedCategorizedSorting = props.categorizedSorting();
1126     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1127     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
1128         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
1129         emit categorizedSortingChanged();
1130     }
1131
1132     const DolphinView::Sorting sorting = props.sorting();
1133     if (sorting != m_viewAccessor.proxyModel()->sorting()) {
1134         m_viewAccessor.proxyModel()->setSorting(sorting);
1135         emit sortingChanged(sorting);
1136     }
1137
1138     const Qt::SortOrder sortOrder = props.sortOrder();
1139     if (sortOrder != m_viewAccessor.proxyModel()->sortOrder()) {
1140         m_viewAccessor.proxyModel()->setSortOrder(sortOrder);
1141         emit sortOrderChanged(sortOrder);
1142     }
1143
1144     const bool sortFoldersFirst = props.sortFoldersFirst();
1145     if (sortFoldersFirst != m_viewAccessor.proxyModel()->sortFoldersFirst()) {
1146         m_viewAccessor.proxyModel()->setSortFoldersFirst(sortFoldersFirst);
1147         emit sortFoldersFirstChanged(sortFoldersFirst);
1148     }
1149
1150     KFileItemDelegate::InformationList info = props.additionalInfo();
1151     if (info != m_viewAccessor.itemDelegate()->showInformation()) {
1152         m_viewAccessor.itemDelegate()->setShowInformation(info);
1153         emit additionalInfoChanged();
1154     }
1155
1156     const bool showPreview = props.showPreview();
1157     if (showPreview != m_showPreview) {
1158         m_showPreview = showPreview;
1159         const int oldZoomLevel = m_viewModeController->zoomLevel();
1160         emit showPreviewChanged();
1161
1162         // Enabling or disabling the preview might change the icon size of the view.
1163         // As the view does not emit a signal when the icon size has been changed,
1164         // the used zoom level of the controller must be adjusted manually:
1165         updateZoomLevel(oldZoomLevel);
1166     }
1167 }
1168
1169 void DolphinView::createView()
1170 {
1171     deleteView();
1172
1173     Q_ASSERT(m_viewAccessor.itemView() == 0);
1174     Q_ASSERT(m_dolphinViewController->itemView() == 0);
1175     m_viewAccessor.createView(this, m_dolphinViewController, m_viewModeController, m_mode);
1176
1177     QAbstractItemView* view = m_viewAccessor.itemView();
1178     Q_ASSERT(view != 0);
1179     view->installEventFilter(this);
1180     view->viewport()->installEventFilter(this);
1181
1182     m_dolphinViewController->setItemView(view);
1183
1184     const int zoomLevel = ZoomLevelInfo::zoomLevelForIconSize(view->iconSize());
1185     m_viewModeController->setZoomLevel(zoomLevel);
1186
1187     connect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
1188             this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
1189
1190     setFocusProxy(m_viewAccessor.layoutTarget());
1191     m_topLayout->insertWidget(1, m_viewAccessor.layoutTarget());
1192 }
1193
1194 void DolphinView::deleteView()
1195 {
1196     QAbstractItemView* view = m_viewAccessor.itemView();
1197     Q_ASSERT((m_dolphinViewController->itemView() == 0) || (m_dolphinViewController->itemView() == view));
1198     m_dolphinViewController->setItemView(0);
1199
1200     if (view != 0) {
1201         if (view->selectionModel() != 0) {
1202             disconnect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
1203                        this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
1204         }
1205
1206         // It's important to set the keyboard focus to the parent
1207         // before deleting the view: Otherwise when having a split
1208         // view the other view will get the focus and will request
1209         // an activation (see DolphinView::eventFilter()).
1210         setFocusProxy(0);
1211         setFocus();
1212
1213         m_viewModeController->disconnect(view);
1214
1215         m_viewAccessor.deleteView();
1216     }
1217 }
1218
1219 void DolphinView::pasteToUrl(const KUrl& url)
1220 {
1221     addNewFileNames(QApplication::clipboard()->mimeData());
1222     KonqOperations::doPaste(this, url);
1223 }
1224
1225 void DolphinView::updateZoomLevel(int oldZoomLevel)
1226 {
1227     const int newZoomLevel = ZoomLevelInfo::zoomLevelForIconSize(m_viewAccessor.itemView()->iconSize());
1228     if (oldZoomLevel != newZoomLevel) {
1229         m_viewModeController->setZoomLevel(newZoomLevel);
1230         emit zoomLevelChanged(newZoomLevel);
1231     }
1232 }
1233
1234 KUrl::List DolphinView::simplifiedSelectedUrls() const
1235 {
1236     KUrl::List urls;
1237
1238     const KFileItemList items = selectedItems();
1239     foreach (const KFileItem &item, items) {
1240         urls.append(item.url());
1241     }
1242
1243
1244     if (itemsExpandable()) {
1245         urls = KDirModel::simplifiedUrlList(urls);
1246     }
1247
1248     return urls;
1249 }
1250
1251 QMimeData* DolphinView::selectionMimeData() const
1252 {
1253     const QAbstractItemView* view = m_viewAccessor.itemView();
1254     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
1255     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
1256     return m_viewAccessor.dirModel()->mimeData(selection.indexes());
1257 }
1258
1259 void DolphinView::addNewFileNames(const QMimeData* mimeData)
1260 {
1261     const KUrl::List urls = KUrl::List::fromMimeData(mimeData);
1262     foreach (const KUrl& url, urls) {
1263         m_newFileNames.insert(url.fileName());
1264     }
1265 }
1266
1267 QItemSelection DolphinView::childrenMatchingPattern(const QModelIndex& parent, const QRegExp& pattern) const
1268 {
1269     QItemSelection matchingIndexes;
1270     const DolphinSortFilterProxyModel* proxyModel = m_viewAccessor.proxyModel();
1271     const DolphinModel* dolphinModel = m_viewAccessor.dirModel();
1272
1273     const int rowCount = proxyModel->rowCount(parent);
1274
1275     for (int row = 0; row < rowCount; ++row) {
1276         QModelIndex index = proxyModel->index(row, 0, parent);
1277         QModelIndex sourceIndex = proxyModel->mapToSource(index);
1278
1279         if (sourceIndex.isValid() && pattern.exactMatch(dolphinModel->data(sourceIndex).toString())) {
1280             matchingIndexes += QItemSelectionRange(index);
1281         }
1282
1283         if (proxyModel->hasChildren(index)) {
1284             matchingIndexes += childrenMatchingPattern(index, pattern);
1285         }
1286     }
1287
1288     return matchingIndexes;
1289 }
1290
1291 DolphinView::ViewAccessor::ViewAccessor(DolphinSortFilterProxyModel* proxyModel) :
1292     m_rootUrl(),
1293     m_iconsView(0),
1294     m_detailsView(0),
1295     m_columnsContainer(0),
1296     m_proxyModel(proxyModel),
1297     m_dragSource(0)
1298 {
1299 }
1300
1301 DolphinView::ViewAccessor::~ViewAccessor()
1302 {
1303     delete m_dragSource;
1304     m_dragSource = 0;
1305 }
1306
1307 void DolphinView::ViewAccessor::createView(QWidget* parent,
1308                                            DolphinViewController* dolphinViewController,
1309                                            const ViewModeController* viewModeController,
1310                                            Mode mode)
1311 {
1312     Q_ASSERT(itemView() == 0);
1313
1314     switch (mode) {
1315     case IconsView:
1316         m_iconsView = new DolphinIconsView(parent,
1317                                            dolphinViewController,
1318                                            viewModeController,
1319                                            m_proxyModel);
1320         break;
1321
1322     case DetailsView:
1323         m_detailsView = new DolphinDetailsView(parent,
1324                                                dolphinViewController,
1325                                                viewModeController,
1326                                                m_proxyModel);
1327         break;
1328
1329     case ColumnView:
1330         m_columnsContainer = new DolphinColumnViewContainer(parent,
1331                                                             dolphinViewController,
1332                                                             viewModeController);
1333         if (!m_rootUrl.isEmpty() && m_rootUrl.isParentOf(viewModeController->url())) {
1334             // The column-view must show several columns starting with m_rootUrl as
1335             // first column and viewModeController->url() as last column.
1336             m_columnsContainer->showColumn(m_rootUrl);
1337             m_columnsContainer->showColumn(viewModeController->url());
1338         }
1339         break;
1340
1341     default:
1342         Q_ASSERT(false);
1343     }
1344 }
1345
1346 void DolphinView::ViewAccessor::deleteView()
1347 {
1348     if (m_columnsContainer != 0) {
1349         m_columnsContainer->close();
1350         m_columnsContainer->disconnect();
1351         m_columnsContainer->deleteLater();
1352         m_columnsContainer = 0;
1353     } else {
1354         QAbstractItemView* view = itemView();
1355         if (view != 0) {
1356             view->close();
1357             view->disconnect();
1358
1359             if (DragAndDropHelper::instance().isDragSource(view)) {
1360                 // The view is a drag source (the feature "Open folders
1361                 // during drag operations" is used). Deleting the view
1362                 // during an ongoing drag operation is not allowed, so
1363                 // this will postponed.
1364                 if (m_dragSource != 0) {
1365                     // the old stored view is obviously not the drag source anymore
1366                     m_dragSource->deleteLater();
1367                     m_dragSource = 0;
1368                 }
1369                 view->hide();
1370                 m_dragSource = view;
1371             } else {
1372                 view->deleteLater();
1373                 view = 0;
1374             }
1375         }
1376
1377         m_iconsView = 0;
1378         m_detailsView = 0;
1379     }
1380 }
1381
1382 void DolphinView::ViewAccessor::prepareUrlChange(const KUrl& url)
1383 {
1384     if (m_columnsContainer != 0) {
1385         m_columnsContainer->showColumn(url);
1386     }
1387 }
1388
1389 QAbstractItemView* DolphinView::ViewAccessor::itemView() const
1390 {
1391     if (m_iconsView != 0) {
1392         return m_iconsView;
1393     }
1394
1395     if (m_detailsView != 0) {
1396         return m_detailsView;
1397     }
1398
1399     if (m_columnsContainer != 0) {
1400         return m_columnsContainer->activeColumn();
1401     }
1402
1403     return 0;
1404 }
1405
1406 KFileItemDelegate* DolphinView::ViewAccessor::itemDelegate() const
1407 {
1408     return static_cast<KFileItemDelegate*>(itemView()->itemDelegate());
1409 }
1410
1411 QWidget* DolphinView::ViewAccessor::layoutTarget() const
1412 {
1413     if (m_columnsContainer != 0) {
1414         return m_columnsContainer;
1415     }
1416     return itemView();
1417 }
1418
1419 void DolphinView::ViewAccessor::setRootUrl(const KUrl& rootUrl)
1420 {
1421     m_rootUrl = rootUrl;
1422 }
1423
1424 KUrl DolphinView::ViewAccessor::rootUrl() const
1425 {
1426     return (m_columnsContainer != 0) ? m_columnsContainer->rootUrl() : m_rootUrl;
1427 }
1428
1429 bool DolphinView::ViewAccessor::supportsCategorizedSorting() const
1430 {
1431     return m_iconsView != 0;
1432 }
1433
1434 bool DolphinView::ViewAccessor::itemsExpandable() const
1435 {
1436     return (m_detailsView != 0) && m_detailsView->itemsExpandable();
1437 }
1438
1439 QSet<KUrl> DolphinView::ViewAccessor::expandedUrls() const
1440 {
1441     if (m_detailsView != 0) {
1442         return m_detailsView->expandedUrls();
1443     }
1444
1445     return QSet<KUrl>();
1446 }
1447
1448 const DolphinDetailsViewExpander* DolphinView::ViewAccessor::setExpandedUrls(const QSet<KUrl>& urlsToExpand)
1449 {
1450     if ((m_detailsView != 0) && m_detailsView->itemsExpandable() && !urlsToExpand.isEmpty()) {
1451         // Check if another expander is already active and stop it if necessary.
1452         if(!m_detailsViewExpander.isNull()) {
1453             m_detailsViewExpander->stop();
1454         }
1455
1456         m_detailsViewExpander = new DolphinDetailsViewExpander(m_detailsView, urlsToExpand);
1457         return m_detailsViewExpander;
1458     }
1459     else {
1460         return 0;
1461     }
1462 }
1463
1464 bool DolphinView::ViewAccessor::reloadOnAdditionalInfoChange() const
1465 {
1466     // the details view requires no reloading of the directory, as it maps
1467     // the file item delegate info to its columns internally
1468     return m_detailsView != 0;
1469 }
1470
1471 DolphinModel* DolphinView::ViewAccessor::dirModel() const
1472 {
1473     return static_cast<DolphinModel*>(proxyModel()->sourceModel());
1474 }
1475
1476 DolphinSortFilterProxyModel* DolphinView::ViewAccessor::proxyModel() const
1477 {
1478     if (m_columnsContainer != 0) {
1479         return static_cast<DolphinSortFilterProxyModel*>(m_columnsContainer->activeColumn()->model());
1480     }
1481     return m_proxyModel;
1482 }
1483
1484 KDirLister* DolphinView::ViewAccessor::dirLister() const
1485 {
1486     return dirModel()->dirLister();
1487 }
1488
1489 void DolphinView::slotRedirection(const KUrl& oldUrl, const KUrl& newUrl)
1490 {
1491     if (oldUrl.equals(url(), KUrl::CompareWithoutTrailingSlash)) {
1492         emit redirection(oldUrl, newUrl);
1493         m_viewModeController->redirectToUrl(newUrl); // #186947
1494     }
1495 }
1496
1497 void DolphinView::restoreContentsPosition()
1498 {
1499     if (!m_restoredContentsPosition.isNull()) {
1500         const int x = m_restoredContentsPosition.x();
1501         const int y = m_restoredContentsPosition.y();
1502         m_restoredContentsPosition = QPoint();
1503
1504         QAbstractItemView* view = m_viewAccessor.itemView();
1505         Q_ASSERT(view != 0);
1506         view->horizontalScrollBar()->setValue(x);
1507         view->verticalScrollBar()->setValue(y);
1508     }
1509 }
1510
1511 #include "dolphinview.moc"