src/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 <kstringhandler.h>
  49 #include <ktoggleaction.h>
  50 #include <kurl.h>
  51
  52 #include "dolphinmodel.h"
  53 #include "dolphincolumnviewcontainer.h"
  54 #include "dolphincontroller.h"
  55 #include "dolphindetailsview.h"
  56 #include "dolphinfileitemdelegate.h"
  57 #include "dolphinnewmenuobserver.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 "viewproperties.h"
  66 #include "zoomlevelinfo.h"
  67 #include "dolphindetailsviewexpander.h"
  68
  69 /**
  70  * Helper function for sorting items with qSort() in
  71  * DolphinView::renameSelectedItems().
  72  */
  73 bool lessThan(const KFileItem& item1, const KFileItem& item2)
  74 {
  75     return KStringHandler::naturalCompare(item1.name(), item2.name()) < 0;
  76 }
  77
  78 DolphinView::DolphinView(QWidget* parent,
  79                          const KUrl& url,
  80                          DolphinSortFilterProxyModel* proxyModel) :
  81     QWidget(parent),
  82     m_active(true),
  83     m_showPreview(false),
  84     m_loadingDirectory(false),
  85     m_storedCategorizedSorting(false),
  86     m_tabsForFiles(false),
  87     m_isContextMenuOpen(false),
  88     m_ignoreViewProperties(false),
  89     m_assureVisibleCurrentIndex(false),
  90     m_mode(DolphinView::IconsView),
  91     m_topLayout(0),
  92     m_controller(0),
  93     m_viewAccessor(proxyModel),
  94     m_selectionModel(0),
  95     m_selectionChangedTimer(0),
  96     m_rootUrl(),
  97     m_activeItemUrl(),
  98     m_restoredContentsPosition(),
  99     m_createdItemUrl(),
 100     m_selectedItems(),
 101     m_newFileNames()
 102 {
 103     m_topLayout = new QVBoxLayout(this);
 104     m_topLayout->setSpacing(0);
 105     m_topLayout->setMargin(0);
 106
 107     m_controller = new DolphinController(this);
 108     m_controller->setUrl(url);
 109
 110     connect(m_controller, SIGNAL(urlChanged(const KUrl&)),
 111             this, SIGNAL(urlChanged(const KUrl&)));
 112     connect(m_controller, SIGNAL(requestUrlChange(const KUrl&)),
 113             this, SLOT(slotRequestUrlChange(const KUrl&)));
 114
 115     connect(m_controller, SIGNAL(requestContextMenu(const QPoint&, const QList<QAction*>&)),
 116             this, SLOT(openContextMenu(const QPoint&, const QList<QAction*>&)));
 117     connect(m_controller, SIGNAL(urlsDropped(const KFileItem&, const KUrl&, QDropEvent*)),
 118             this, SLOT(dropUrls(const KFileItem&, const KUrl&, QDropEvent*)));
 119     connect(m_controller, SIGNAL(sortingChanged(DolphinView::Sorting)),
 120             this, SLOT(updateSorting(DolphinView::Sorting)));
 121     connect(m_controller, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 122             this, SLOT(updateSortOrder(Qt::SortOrder)));
 123     connect(m_controller, SIGNAL(sortFoldersFirstChanged(bool)),
 124             this, SLOT(updateSortFoldersFirst(bool)));
 125     connect(m_controller, SIGNAL(additionalInfoChanged(const KFileItemDelegate::InformationList&)),
 126             this, SLOT(updateAdditionalInfo(const KFileItemDelegate::InformationList&)));
 127     connect(m_controller, SIGNAL(itemTriggered(const KFileItem&)),
 128             this, SLOT(triggerItem(const KFileItem&)));
 129     connect(m_controller, SIGNAL(tabRequested(const KUrl&)),
 130             this, SIGNAL(tabRequested(const KUrl&)));
 131     connect(m_controller, SIGNAL(activated()),
 132             this, SLOT(activate()));
 133     connect(m_controller, SIGNAL(itemEntered(const KFileItem&)),
 134             this, SLOT(showHoverInformation(const KFileItem&)));
 135     connect(m_controller, SIGNAL(viewportEntered()),
 136             this, SLOT(clearHoverInformation()));
 137
 138     KDirLister* dirLister = m_viewAccessor.dirLister();
 139     connect(dirLister, SIGNAL(redirection(KUrl,KUrl)),
 140             this, SLOT(slotRedirection(KUrl,KUrl)));
 141     connect(dirLister, SIGNAL(completed()),
 142             this, SLOT(slotDirListerCompleted()));
 143     connect(dirLister, SIGNAL(refreshItems(const QList<QPair<KFileItem,KFileItem>>&)),
 144             this, SLOT(slotRefreshItems()));
 145
 146     // When a new item has been created by the "Create New..." menu, the item should
 147     // get selected and it must be assured that the item will get visible. As the
 148     // creation is done asynchronously, several signals must be checked:
 149     connect(&DolphinNewMenuObserver::instance(), SIGNAL(itemCreated(const KUrl&)),
 150             this, SLOT(observeCreatedItem(const KUrl&)));
 151
 152     m_selectionChangedTimer = new QTimer(this);
 153     m_selectionChangedTimer->setSingleShot(true);
 154     m_selectionChangedTimer->setInterval(300);
 155     connect(m_selectionChangedTimer, SIGNAL(timeout()),
 156             this, SLOT(emitSelectionChangedSignal()));
 157
 158     applyViewProperties();
 159     m_topLayout->addWidget(m_viewAccessor.layoutTarget());
 160 }
 161
 162 DolphinView::~DolphinView()
 163 {
 164 }
 165
 166 const KUrl& DolphinView::url() const
 167 {
 168     return m_controller->url();
 169 }
 170
 171 KUrl DolphinView::rootUrl() const
 172 {
 173     const KUrl viewUrl = url();
 174     const KUrl root = m_viewAccessor.rootUrl();
 175     if (root.isEmpty() || !root.isParentOf(viewUrl)) {
 176         return viewUrl;
 177     }
 178     return root;
 179 }
 180
 181 void DolphinView::setActive(bool active)
 182 {
 183     if (active == m_active) {
 184         return;
 185     }
 186
 187     m_active = active;
 188
 189     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 190     if (active) {
 191         emitSelectionChangedSignal();
 192     } else {
 193         color.setAlpha(150);
 194     }
 195
 196     QWidget* viewport = m_viewAccessor.itemView()->viewport();
 197     QPalette palette;
 198     palette.setColor(viewport->backgroundRole(), color);
 199     viewport->setPalette(palette);
 200
 201     update();
 202
 203     if (active) {
 204         m_viewAccessor.itemView()->setFocus();
 205         emit activated();
 206     }
 207
 208     m_controller->indicateActivationChange(active);
 209 }
 210
 211 bool DolphinView::isActive() const
 212 {
 213     return m_active;
 214 }
 215
 216 void DolphinView::setMode(Mode mode)
 217 {
 218     if (mode == m_mode) {
 219         return; // the wished mode is already set
 220     }
 221
 222     const int oldZoomLevel = m_controller->zoomLevel();
 223     m_mode = mode;
 224
 225     // remember the currently selected items, so that they will
 226     // be restored after reloading the directory
 227     m_selectedItems = selectedItems();
 228
 229     deleteView();
 230
 231     const KUrl viewPropsUrl = rootUrl();
 232     ViewProperties props(viewPropsUrl);
 233     props.setViewMode(m_mode);
 234     createView();
 235
 236     // the file item delegate has been recreated, apply the current
 237     // additional information manually
 238     const KFileItemDelegate::InformationList infoList = props.additionalInfo();
 239     m_viewAccessor.itemDelegate()->setShowInformation(infoList);
 240     emit additionalInfoChanged();
 241
 242     // Not all view modes support categorized sorting. Adjust the sorting model
 243     // if changing the view mode results in a change of the categorized sorting
 244     // capabilities.
 245     m_storedCategorizedSorting = props.categorizedSorting();
 246     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 247     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
 248         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 249         emit categorizedSortingChanged();
 250     }
 251
 252     emit modeChanged();
 253
 254     updateZoomLevel(oldZoomLevel);
 255     loadDirectory(viewPropsUrl);
 256 }
 257
 258 DolphinView::Mode DolphinView::mode() const
 259 {
 260     return m_mode;
 261 }
 262
 263 bool DolphinView::showPreview() const
 264 {
 265     return m_showPreview;
 266 }
 267
 268 bool DolphinView::showHiddenFiles() const
 269 {
 270     return m_viewAccessor.dirLister()->showingDotFiles();
 271 }
 272
 273 bool DolphinView::categorizedSorting() const
 274 {
 275     // If all view modes would support categorized sorting, returning
 276     // m_viewAccessor.proxyModel()->isCategorizedModel() would be the way to go. As
 277     // currently only the icons view supports caterized sorting, we remember
 278     // the stored view properties state in m_storedCategorizedSorting and
 279     // return this state. The application takes care to disable the corresponding
 280     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 281     // that this setting is not applied to the current view mode.
 282     return m_storedCategorizedSorting;
 283 }
 284
 285 bool DolphinView::supportsCategorizedSorting() const
 286 {
 287     return m_viewAccessor.supportsCategorizedSorting();
 288 }
 289
 290 bool DolphinView::hasSelection() const
 291 {
 292     const QAbstractItemView* view = m_viewAccessor.itemView();
 293     return (view != 0) && view->selectionModel()->hasSelection();
 294 }
 295
 296 void DolphinView::markUrlsAsSelected(const QList<KUrl>& urls)
 297 {
 298     foreach (const KUrl& url, urls) {
 299         KFileItem item(KFileItem::Unknown, KFileItem::Unknown, url);
 300         m_selectedItems.append(item);
 301     }
 302 }
 303
 304 KFileItemList DolphinView::selectedItems() const
 305 {
 306     KFileItemList itemList;
 307     const QAbstractItemView* view = m_viewAccessor.itemView();
 308     if (view == 0) {
 309         return itemList;
 310     }
 311
 312     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
 313
 314     const QModelIndexList indexList = selection.indexes();
 315     foreach (const QModelIndex &index, indexList) {
 316         KFileItem item = m_viewAccessor.dirModel()->itemForIndex(index);
 317         if (!item.isNull()) {
 318             itemList.append(item);
 319         }
 320     }
 321
 322     return itemList;
 323 }
 324
 325 KUrl::List DolphinView::selectedUrls() const
 326 {
 327     KUrl::List urls;
 328     const KFileItemList list = selectedItems();
 329     foreach (const KFileItem &item, list) {
 330         urls.append(item.url());
 331     }
 332     return urls;
 333 }
 334
 335 int DolphinView::selectedItemsCount() const
 336 {
 337     const QAbstractItemView* view = m_viewAccessor.itemView();
 338     if (view == 0) {
 339         return 0;
 340     }
 341
 342     return view->selectionModel()->selectedIndexes().count();
 343 }
 344
 345 QItemSelectionModel* DolphinView::selectionModel() const
 346 {
 347     return m_viewAccessor.itemView()->selectionModel();
 348 }
 349
 350 void DolphinView::setContentsPosition(int x, int y)
 351 {
 352     QAbstractItemView* view = m_viewAccessor.itemView();
 353     Q_ASSERT(view != 0);
 354     view->horizontalScrollBar()->setValue(x);
 355     view->verticalScrollBar()->setValue(y);
 356
 357     m_loadingDirectory = false;
 358 }
 359
 360 void DolphinView::setRestoredContentsPosition(const QPoint& pos)
 361 {
 362     // TODO: This function is called by DolphinViewContainer.
 363     // If it makes use of DolphinView::restoreState(...) to restore the
 364     // view state in KDE 4.5, this function can be removed.
 365     m_restoredContentsPosition = pos;
 366 }
 367
 368 QPoint DolphinView::contentsPosition() const
 369 {
 370     // TODO: If DolphinViewContainer uses DolphinView::saveState(...) to save the
 371     // view state in KDE 4.5, this code can be moved to DolphinView::saveState.
 372     QAbstractItemView* view = m_viewAccessor.itemView();
 373     Q_ASSERT(view != 0);
 374     const int x = view->horizontalScrollBar()->value();
 375     const int y = view->verticalScrollBar()->value();
 376     return QPoint(x, y);
 377 }
 378
 379 void DolphinView::setZoomLevel(int level)
 380 {
 381     if (level < ZoomLevelInfo::minimumLevel()) {
 382         level = ZoomLevelInfo::minimumLevel();
 383     } else if (level > ZoomLevelInfo::maximumLevel()) {
 384         level = ZoomLevelInfo::maximumLevel();
 385     }
 386
 387     if (level != zoomLevel()) {
 388         m_controller->setZoomLevel(level);
 389         emit zoomLevelChanged(level);
 390     }
 391 }
 392
 393 int DolphinView::zoomLevel() const
 394 {
 395     return m_controller->zoomLevel();
 396 }
 397
 398 void DolphinView::setSorting(Sorting sorting)
 399 {
 400     if (sorting != this->sorting()) {
 401         updateSorting(sorting);
 402     }
 403 }
 404
 405 DolphinView::Sorting DolphinView::sorting() const
 406 {
 407     return m_viewAccessor.proxyModel()->sorting();
 408 }
 409
 410 void DolphinView::setSortOrder(Qt::SortOrder order)
 411 {
 412     if (sortOrder() != order) {
 413         updateSortOrder(order);
 414     }
 415 }
 416
 417 Qt::SortOrder DolphinView::sortOrder() const
 418 {
 419     return m_viewAccessor.proxyModel()->sortOrder();
 420 }
 421
 422 void DolphinView::setSortFoldersFirst(bool foldersFirst)
 423 {
 424     if (sortFoldersFirst() != foldersFirst) {
 425         updateSortFoldersFirst(foldersFirst);
 426     }
 427 }
 428
 429 bool DolphinView::sortFoldersFirst() const
 430 {
 431     return m_viewAccessor.proxyModel()->sortFoldersFirst();
 432 }
 433
 434 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 435 {
 436     const KUrl viewPropsUrl = rootUrl();
 437     ViewProperties props(viewPropsUrl);
 438     props.setAdditionalInfo(info);
 439     m_viewAccessor.itemDelegate()->setShowInformation(info);
 440
 441     emit additionalInfoChanged();
 442
 443     if (m_viewAccessor.reloadOnAdditionalInfoChange()) {
 444         loadDirectory(viewPropsUrl);
 445     }
 446 }
 447
 448 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 449 {
 450     return m_viewAccessor.itemDelegate()->showInformation();
 451 }
 452
 453 void DolphinView::reload()
 454 {
 455     QByteArray viewState;
 456     QDataStream saveStream(&viewState, QIODevice::WriteOnly);
 457     saveState(saveStream);
 458     m_selectedItems= selectedItems();
 459
 460     setUrl(url());
 461     loadDirectory(url(), true);
 462
 463     QDataStream restoreStream(viewState);
 464     restoreState(restoreStream);
 465 }
 466
 467 void DolphinView::refresh()
 468 {
 469     m_ignoreViewProperties = false;
 470
 471     const bool oldActivationState = m_active;
 472     const int oldZoomLevel = m_controller->zoomLevel();
 473     m_active = true;
 474
 475     createView();
 476     applyViewProperties();
 477     reload();
 478
 479     setActive(oldActivationState);
 480     updateZoomLevel(oldZoomLevel);
 481 }
 482
 483 void DolphinView::updateView(const KUrl& url, const KUrl& rootUrl)
 484 {
 485     Q_UNUSED(rootUrl); // TODO: remove after columnview-cleanup has been finished
 486
 487     if (m_controller->url() == url) {
 488         return;
 489     }
 490
 491     m_controller->setUrl(url); // emits urlChanged, which we forward
 492     m_viewAccessor.prepareUrlChange(url);
 493     applyViewProperties();
 494     loadDirectory(url);
 495
 496     // When changing the URL there is no need to keep the version
 497     // data of the previous URL.
 498     m_viewAccessor.dirModel()->clearVersionData();
 499
 500     emit startedPathLoading(url);
 501 }
 502
 503 void DolphinView::setNameFilter(const QString& nameFilter)
 504 {
 505     m_controller->setNameFilter(nameFilter);
 506 }
 507
 508 void DolphinView::calculateItemCount(int& fileCount,
 509                                      int& folderCount,
 510                                      KIO::filesize_t& totalFileSize) const
 511 {
 512     foreach (const KFileItem& item, m_viewAccessor.dirLister()->items()) {
 513         if (item.isDir()) {
 514             ++folderCount;
 515         } else {
 516             ++fileCount;
 517             totalFileSize += item.size();
 518         }
 519     }
 520 }
 521
 522 QString DolphinView::statusBarText() const
 523 {
 524     QString text;
 525     int folderCount = 0;
 526     int fileCount = 0;
 527     KIO::filesize_t totalFileSize = 0;
 528
 529     if (hasSelection()) {
 530         // give a summary of the status of the selected files
 531         const KFileItemList list = selectedItems();
 532         if (list.isEmpty()) {
 533             // when an item is triggered, it is temporary selected but selectedItems()
 534             // will return an empty list
 535             return text;
 536         }
 537
 538         KFileItemList::const_iterator it = list.begin();
 539         const KFileItemList::const_iterator end = list.end();
 540         while (it != end) {
 541             const KFileItem& item = *it;
 542             if (item.isDir()) {
 543                 ++folderCount;
 544             } else {
 545                 ++fileCount;
 546                 totalFileSize += item.size();
 547             }
 548             ++it;
 549         }
 550
 551         if (folderCount + fileCount == 1) {
 552             // if only one item is selected, show the filename
 553             const QString name = list.first().name();
 554             text = (folderCount == 1) ? i18nc("@info:status", "<filename>%1</filename> selected", name) :
 555                                         i18nc("@info:status", "<filename>%1</filename> selected (%2)",
 556                                               name, KIO::convertSize(totalFileSize));
 557         } else {
 558             // at least 2 items are selected
 559             const QString foldersText = i18ncp("@info:status", "1 Folder selected", "%1 Folders selected", folderCount);
 560             const QString filesText = i18ncp("@info:status", "1 File selected", "%1 Files selected", fileCount);
 561             if ((folderCount > 0) && (fileCount > 0)) {
 562                 text = i18nc("@info:status folders, files (size)", "%1, %2 (%3)",
 563                              foldersText, filesText, KIO::convertSize(totalFileSize));
 564             } else if (fileCount > 0) {
 565                 text = i18nc("@info:status files (size)", "%1 (%2)", filesText, KIO::convertSize(totalFileSize));
 566             } else {
 567                 Q_ASSERT(folderCount > 0);
 568                 text = foldersText;
 569             }
 570         }
 571     } else {
 572         calculateItemCount(fileCount, folderCount, totalFileSize);
 573         text = KIO::itemsSummaryString(fileCount + folderCount,
 574                                        fileCount, folderCount,
 575                                        totalFileSize, true);
 576     }
 577
 578     return text;
 579 }
 580
 581 QList<QAction*> DolphinView::versionControlActions(const KFileItemList& items) const
 582 {
 583     return m_controller->versionControlActions(items);
 584 }
 585
 586 void DolphinView::setUrl(const KUrl& url)
 587 {
 588     m_newFileNames.clear();
 589     updateView(url, KUrl());
 590 }
 591
 592 void DolphinView::selectAll()
 593 {
 594     m_viewAccessor.itemView()->selectAll();
 595 }
 596
 597 void DolphinView::invertSelection()
 598 {
 599     QItemSelectionModel* selectionModel = m_viewAccessor.itemView()->selectionModel();
 600     const QAbstractItemModel* itemModel = selectionModel->model();
 601
 602     const QModelIndex topLeft = itemModel->index(0, 0);
 603     const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 604                                                      itemModel->columnCount() - 1);
 605
 606     const QItemSelection selection(topLeft, bottomRight);
 607     selectionModel->select(selection, QItemSelectionModel::Toggle);
 608 }
 609
 610 void DolphinView::clearSelection()
 611 {
 612     m_viewAccessor.itemView()->clearSelection();
 613 }
 614
 615 void DolphinView::renameSelectedItems()
 616 {
 617     KFileItemList items = selectedItems();
 618     const int itemCount = items.count();
 619     if (itemCount < 1) {
 620         return;
 621     }
 622
 623     if (itemCount > 1) {
 624         // More than one item has been selected for renaming. Open
 625         // a rename dialog and rename all items afterwards.
 626         QPointer<RenameDialog> dialog = new RenameDialog(this, items);
 627         if (dialog->exec() == QDialog::Rejected) {
 628             delete dialog;
 629             return;
 630         }
 631
 632         const QString newName = dialog->newName();
 633         if (newName.isEmpty()) {
 634             emit errorMessage(dialog->errorString());
 635             delete dialog;
 636             return;
 637         }
 638         delete dialog;
 639
 640         // the selection would be invalid after renaming the items, so just clear
 641         // it before
 642         clearSelection();
 643
 644         // TODO: check how this can be integrated into KIO::FileUndoManager/KonqOperations
 645         // as one operation instead of n rename operations like it is done now...
 646         Q_ASSERT(newName.contains('#'));
 647
 648         // currently the items are sorted by the selection order, resort
 649         // them by the file name
 650         qSort(items.begin(), items.end(), lessThan);
 651
 652         // iterate through all selected items and rename them...
 653         int index = 1;
 654         foreach (const KFileItem& item, items) {
 655             const KUrl& oldUrl = item.url();
 656             QString number;
 657             number.setNum(index++);
 658
 659             QString name = newName;
 660             name.replace('#', number);
 661
 662             if (oldUrl.fileName() != name) {
 663                 KUrl newUrl = oldUrl;
 664                 newUrl.setFileName(name);
 665                 KonqOperations::rename(this, oldUrl, newUrl);
 666             }
 667         }
 668     } else if (DolphinSettings::instance().generalSettings()->renameInline()) {
 669         Q_ASSERT(itemCount == 1);
 670         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForItem(items.first());
 671         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
 672         m_viewAccessor.itemView()->edit(proxyIndex);
 673     } else {
 674         Q_ASSERT(itemCount == 1);
 675
 676         QPointer<RenameDialog> dialog = new RenameDialog(this, items);
 677         if (dialog->exec() == QDialog::Rejected) {
 678             delete dialog;
 679             return;
 680         }
 681
 682         const QString newName = dialog->newName();
 683         if (newName.isEmpty()) {
 684             emit errorMessage(dialog->errorString());
 685             delete dialog;
 686             return;
 687         }
 688         delete dialog;
 689
 690         const KUrl& oldUrl = items.first().url();
 691         KUrl newUrl = oldUrl;
 692         newUrl.setFileName(newName);
 693         KonqOperations::rename(this, oldUrl, newUrl);
 694     }
 695
 696     // assure that the current index remains visible when KDirLister
 697     // will notify the view about changed items
 698     m_assureVisibleCurrentIndex = true;
 699 }
 700
 701 void DolphinView::trashSelectedItems()
 702 {
 703     const KUrl::List list = simplifiedSelectedUrls();
 704     KonqOperations::del(this, KonqOperations::TRASH, list);
 705 }
 706
 707 void DolphinView::deleteSelectedItems()
 708 {
 709     const KUrl::List list = simplifiedSelectedUrls();
 710     const bool del = KonqOperations::askDeleteConfirmation(list,
 711                      KonqOperations::DEL,
 712                      KonqOperations::DEFAULT_CONFIRMATION,
 713                      this);
 714
 715     if (del) {
 716         KIO::Job* job = KIO::del(list);
 717         connect(job, SIGNAL(result(KJob*)),
 718                 this, SLOT(slotDeleteFileFinished(KJob*)));
 719     }
 720 }
 721
 722 void DolphinView::cutSelectedItems()
 723 {
 724     QMimeData* mimeData = selectionMimeData();
 725     KonqMimeData::addIsCutSelection(mimeData, true);
 726     QApplication::clipboard()->setMimeData(mimeData);
 727 }
 728
 729 void DolphinView::copySelectedItems()
 730 {
 731     QMimeData* mimeData = selectionMimeData();
 732     QApplication::clipboard()->setMimeData(mimeData);
 733 }
 734
 735 void DolphinView::paste()
 736 {
 737     pasteToUrl(url());
 738 }
 739
 740 void DolphinView::pasteIntoFolder()
 741 {
 742     const KFileItemList items = selectedItems();
 743     if ((items.count() == 1) && items.first().isDir()) {
 744         pasteToUrl(items.first().url());
 745     }
 746 }
 747
 748 void DolphinView::setShowPreview(bool show)
 749 {
 750     if (m_showPreview == show) {
 751         return;
 752     }
 753
 754     const KUrl viewPropsUrl = rootUrl();
 755     ViewProperties props(viewPropsUrl);
 756     props.setShowPreview(show);
 757
 758     m_showPreview = show;
 759     const int oldZoomLevel = m_controller->zoomLevel();
 760     emit showPreviewChanged();
 761
 762     // Enabling or disabling the preview might change the icon size of the view.
 763     // As the view does not emit a signal when the icon size has been changed,
 764     // the used zoom level of the controller must be adjusted manually:
 765     updateZoomLevel(oldZoomLevel);
 766 }
 767
 768 void DolphinView::setShowHiddenFiles(bool show)
 769 {
 770     if (m_viewAccessor.dirLister()->showingDotFiles() == show) {
 771         return;
 772     }
 773
 774     const KUrl viewPropsUrl = rootUrl();
 775     ViewProperties props(viewPropsUrl);
 776     props.setShowHiddenFiles(show);
 777
 778     m_viewAccessor.dirLister()->setShowingDotFiles(show);
 779     emit showHiddenFilesChanged();
 780 }
 781
 782 void DolphinView::setCategorizedSorting(bool categorized)
 783 {
 784     if (categorized == categorizedSorting()) {
 785         return;
 786     }
 787
 788     // setCategorizedSorting(true) may only get invoked
 789     // if the view supports categorized sorting
 790     Q_ASSERT(!categorized || supportsCategorizedSorting());
 791
 792     ViewProperties props(rootUrl());
 793     props.setCategorizedSorting(categorized);
 794     props.save();
 795
 796     m_storedCategorizedSorting = categorized;
 797     m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 798
 799     emit categorizedSortingChanged();
 800 }
 801
 802 void DolphinView::toggleSortOrder()
 803 {
 804     const Qt::SortOrder order = (sortOrder() == Qt::AscendingOrder) ?
 805                                 Qt::DescendingOrder :
 806                                 Qt::AscendingOrder;
 807     setSortOrder(order);
 808 }
 809
 810 void DolphinView::toggleSortFoldersFirst()
 811 {
 812     setSortFoldersFirst(!sortFoldersFirst());
 813 }
 814
 815 void DolphinView::toggleAdditionalInfo(QAction* action)
 816 {
 817     const KFileItemDelegate::Information info =
 818         static_cast<KFileItemDelegate::Information>(action->data().toInt());
 819
 820     KFileItemDelegate::InformationList list = additionalInfo();
 821
 822     const bool show = action->isChecked();
 823
 824     const int index = list.indexOf(info);
 825     const bool containsInfo = (index >= 0);
 826     if (show && !containsInfo) {
 827         list.append(info);
 828         setAdditionalInfo(list);
 829     } else if (!show && containsInfo) {
 830         list.removeAt(index);
 831         setAdditionalInfo(list);
 832         Q_ASSERT(list.indexOf(info) < 0);
 833     }
 834 }
 835
 836 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 837 {
 838     QWidget::mouseReleaseEvent(event);
 839     setActive(true);
 840 }
 841
 842 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 843 {
 844     switch (event->type()) {
 845     case QEvent::FocusIn:
 846         if (watched == m_viewAccessor.itemView()) {
 847             m_controller->requestActivation();
 848         }
 849         break;
 850
 851     case QEvent::DragEnter:
 852         if (watched == m_viewAccessor.itemView()->viewport()) {
 853             setActive(true);
 854         }
 855         break;
 856
 857     case QEvent::KeyPress:
 858         if (watched == m_viewAccessor.itemView()) {
 859             // clear the selection when Escape has been pressed
 860             QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
 861             if (keyEvent->key() == Qt::Key_Escape) {
 862                 clearSelection();
 863             }
 864         }
 865         break;
 866
 867     case QEvent::Wheel:
 868         if (watched == m_viewAccessor.itemView()->viewport()) {
 869             // Ctrl+wheel events should cause icon zooming, but not if the left mouse button is pressed
 870             // (the user is probably trying to scroll during a selection in that case)
 871             QWheelEvent* wheelEvent = static_cast<QWheelEvent*>(event);
 872             if (wheelEvent->modifiers() & Qt::ControlModifier && !(wheelEvent->buttons() & Qt::LeftButton)) {
 873                 const int delta = wheelEvent->delta();
 874                 const int level = zoomLevel();
 875                 if (delta > 0) {
 876                     setZoomLevel(level + 1);
 877                 } else if (delta < 0) {
 878                     setZoomLevel(level - 1);
 879                 }
 880                 return true;
 881             }
 882         }
 883         break;
 884
 885     default:
 886         break;
 887     }
 888
 889     return QWidget::eventFilter(watched, event);
 890 }
 891
 892 void DolphinView::activate()
 893 {
 894     setActive(true);
 895 }
 896
 897 void DolphinView::triggerItem(const KFileItem& item)
 898 {
 899     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 900     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 901         // items are selected by the user, hence don't trigger the
 902         // item specified by 'index'
 903         return;
 904     }
 905
 906     // TODO: the m_isContextMenuOpen check is a workaround for Qt-issue 207192
 907     if (item.isNull() || m_isContextMenuOpen) {
 908         return;
 909     }
 910
 911     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 912 }
 913
 914 void DolphinView::slotSelectionChanged(const QItemSelection& selected, const QItemSelection& deselected)
 915 {
 916     const int count = selectedItemsCount();
 917     const bool selectionStateChanged = ((count >  0) && (selected.count() == count)) ||
 918                                        ((count == 0) && !deselected.isEmpty());
 919
 920     // If nothing has been selected before and something got selected (or if something
 921     // was selected before and now nothing is selected) the selectionChangedSignal must
 922     // be emitted asynchronously as fast as possible to update the edit-actions.
 923     m_selectionChangedTimer->setInterval(selectionStateChanged ? 0 : 300);
 924     const int foo = selectionStateChanged ? 0 : 300;
 925     m_selectionChangedTimer->start();
 926 }
 927
 928 void DolphinView::emitSelectionChangedSignal()
 929 {
 930     emit selectionChanged(DolphinView::selectedItems());
 931 }
 932
 933 void DolphinView::openContextMenu(const QPoint& pos,
 934                                   const QList<QAction*>& customActions)
 935 {
 936     KFileItem item;
 937     const QModelIndex index = m_viewAccessor.itemView()->indexAt(pos);
 938     if (index.isValid() && (index.column() == DolphinModel::Name)) {
 939         const QModelIndex dolphinModelIndex = m_viewAccessor.proxyModel()->mapToSource(index);
 940         item = m_viewAccessor.dirModel()->itemForIndex(dolphinModelIndex);
 941     }
 942
 943     m_isContextMenuOpen = true; // TODO: workaround for Qt-issue 207192
 944     emit requestContextMenu(item, url(), customActions);
 945     m_isContextMenuOpen = false;
 946 }
 947
 948 void DolphinView::dropUrls(const KFileItem& destItem,
 949                            const KUrl& destPath,
 950                            QDropEvent* event)
 951 {
 952     addNewFileNames(event->mimeData());
 953     DragAndDropHelper::instance().dropUrls(destItem, destPath, event, this);
 954 }
 955
 956 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 957 {
 958     ViewProperties props(rootUrl());
 959     props.setSorting(sorting);
 960
 961     m_viewAccessor.proxyModel()->setSorting(sorting);
 962
 963     emit sortingChanged(sorting);
 964 }
 965
 966 void DolphinView::updateSortOrder(Qt::SortOrder order)
 967 {
 968     ViewProperties props(rootUrl());
 969     props.setSortOrder(order);
 970
 971     m_viewAccessor.proxyModel()->setSortOrder(order);
 972
 973     emit sortOrderChanged(order);
 974 }
 975
 976 void DolphinView::updateSortFoldersFirst(bool foldersFirst)
 977 {
 978     ViewProperties props(rootUrl());
 979     props.setSortFoldersFirst(foldersFirst);
 980
 981     m_viewAccessor.proxyModel()->setSortFoldersFirst(foldersFirst);
 982
 983     emit sortFoldersFirstChanged(foldersFirst);
 984 }
 985
 986 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 987 {
 988     ViewProperties props(rootUrl());
 989     props.setAdditionalInfo(info);
 990     props.save();
 991
 992     m_viewAccessor.itemDelegate()->setShowInformation(info);
 993
 994     emit additionalInfoChanged();
 995 }
 996
 997 void DolphinView::updateAdditionalInfoActions(KActionCollection* collection)
 998 {
 999     const bool enable = (m_mode == DolphinView::DetailsView) ||
1000                         (m_mode == DolphinView::IconsView);
1001
1002     QAction* showSizeInfo = collection->action("show_size_info");
1003     QAction* showDateInfo = collection->action("show_date_info");
1004     QAction* showPermissionsInfo = collection->action("show_permissions_info");
1005     QAction* showOwnerInfo = collection->action("show_owner_info");
1006     QAction* showGroupInfo = collection->action("show_group_info");
1007     QAction* showMimeInfo = collection->action("show_mime_info");
1008
1009     showSizeInfo->setChecked(false);
1010     showDateInfo->setChecked(false);
1011     showPermissionsInfo->setChecked(false);
1012     showOwnerInfo->setChecked(false);
1013     showGroupInfo->setChecked(false);
1014     showMimeInfo->setChecked(false);
1015
1016     showSizeInfo->setEnabled(enable);
1017     showDateInfo->setEnabled(enable);
1018     showPermissionsInfo->setEnabled(enable);
1019     showOwnerInfo->setEnabled(enable);
1020     showGroupInfo->setEnabled(enable);
1021     showMimeInfo->setEnabled(enable);
1022
1023     foreach (KFileItemDelegate::Information info, m_viewAccessor.itemDelegate()->showInformation()) {
1024         switch (info) {
1025         case KFileItemDelegate::Size:
1026             showSizeInfo->setChecked(true);
1027             break;
1028         case KFileItemDelegate::ModificationTime:
1029             showDateInfo->setChecked(true);
1030             break;
1031         case KFileItemDelegate::Permissions:
1032             showPermissionsInfo->setChecked(true);
1033             break;
1034         case KFileItemDelegate::Owner:
1035             showOwnerInfo->setChecked(true);
1036             break;
1037         case KFileItemDelegate::OwnerAndGroup:
1038             showGroupInfo->setChecked(true);
1039             break;
1040         case KFileItemDelegate::FriendlyMimeType:
1041             showMimeInfo->setChecked(true);
1042             break;
1043         default:
1044             break;
1045         }
1046     }
1047 }
1048
1049 QPair<bool, QString> DolphinView::pasteInfo() const
1050 {
1051     return KonqOperations::pasteInfo(url());
1052 }
1053
1054 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
1055 {
1056     m_tabsForFiles = tabsForFiles;
1057 }
1058
1059 bool DolphinView::isTabsForFilesEnabled() const
1060 {
1061     return m_tabsForFiles;
1062 }
1063
1064 void DolphinView::activateItem(const KUrl& url)
1065 {
1066     // TODO: If DolphinViewContainer uses DolphinView::restoreState(...) to restore the
1067     // view state in KDE 4.5, this function can be removed.
1068     m_activeItemUrl = url;
1069 }
1070
1071 bool DolphinView::itemsExpandable() const
1072 {
1073     return m_viewAccessor.itemsExpandable();
1074 }
1075
1076 void DolphinView::restoreState(QDataStream &stream)
1077 {
1078      // current item
1079     stream >> m_activeItemUrl;
1080
1081     // view position
1082     stream >> m_restoredContentsPosition;
1083
1084     // expanded folders (only relevant for the details view - will be ignored by the view in other view modes)
1085     QSet<KUrl> urlsToExpand;
1086     stream >> urlsToExpand;
1087     const DolphinDetailsViewExpander* expander = m_viewAccessor.setExpandedUrls(urlsToExpand);
1088
1089     if (expander) {
1090         m_expanderActive = true;
1091         connect (expander, SIGNAL(completed()), this, SLOT(slotLoadingCompleted()));
1092     }
1093     else {
1094         m_expanderActive = false;
1095     }
1096 }
1097
1098 void DolphinView::saveState(QDataStream &stream)
1099 {
1100     // current item
1101     KFileItem currentItem;
1102     const QAbstractItemView* view = m_viewAccessor.itemView();
1103
1104     if(view) {
1105         const QModelIndex proxyIndex = view->currentIndex();
1106         const QModelIndex dirModelIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
1107         currentItem = m_viewAccessor.dirModel()->itemForIndex(dirModelIndex);
1108     }
1109
1110     KUrl currentUrl;
1111     if (!currentItem.isNull())
1112         currentUrl = currentItem.url();
1113
1114     stream << currentUrl;
1115
1116     // view position
1117     stream << contentsPosition();
1118
1119     // expanded folders (only relevant for the details view - the set will be empty in other view modes)
1120     stream << m_viewAccessor.expandedUrls();
1121 }
1122
1123 void DolphinView::observeCreatedItem(const KUrl& url)
1124 {
1125     m_createdItemUrl = url;
1126     connect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
1127             this, SLOT(selectAndScrollToCreatedItem()));
1128 }
1129
1130 void DolphinView::selectAndScrollToCreatedItem()
1131 {
1132     const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_createdItemUrl);
1133     if (dirIndex.isValid()) {
1134         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1135         m_viewAccessor.itemView()->setCurrentIndex(proxyIndex);
1136     }
1137
1138     disconnect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
1139                this, SLOT(selectAndScrollToCreatedItem()));
1140     m_createdItemUrl = KUrl();
1141 }
1142
1143 void DolphinView::emitContentsMoved()
1144 {
1145     // TODO: If DolphinViewContainer uses DolphinView::saveState(...) to save the
1146     // view state in KDE 4.5, the contentsMoved signal might not be needed anymore,
1147     // depending on how the implementation is done.
1148     // In that case, the code in contentsPosition() can be moved to saveState().
1149
1150     // only emit the contents moved signal if no directory loading is ongoing
1151     // (this would reset the contents position always to (0, 0))
1152     if (!m_loadingDirectory) {
1153         const QPoint pos(contentsPosition());
1154         emit contentsMoved(pos.x(), pos.y());
1155     }
1156 }
1157
1158 void DolphinView::showHoverInformation(const KFileItem& item)
1159 {
1160     emit requestItemInfo(item);
1161 }
1162
1163 void DolphinView::clearHoverInformation()
1164 {
1165     emit requestItemInfo(KFileItem());
1166 }
1167
1168 void DolphinView::slotDeleteFileFinished(KJob* job)
1169 {
1170     if (job->error() == 0) {
1171         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1172     } else if (job->error() != KIO::ERR_USER_CANCELED) {
1173         emit errorMessage(job->errorString());
1174     }
1175 }
1176
1177 void DolphinView::slotRequestUrlChange(const KUrl& url)
1178 {
1179     emit requestUrlChange(url);
1180     m_controller->setUrl(url);
1181 }
1182
1183 void DolphinView::slotDirListerCompleted()
1184 {
1185     if (!m_expanderActive) {
1186         slotLoadingCompleted();
1187     }
1188
1189     if (!m_newFileNames.isEmpty()) {
1190         // select all newly added items created by a paste operation or
1191         // a drag & drop operation
1192         const int rowCount = m_viewAccessor.proxyModel()->rowCount();
1193         QItemSelection selection;
1194         for (int row = 0; row < rowCount; ++row) {
1195             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->index(row, 0);
1196             const QModelIndex dirIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
1197             const KUrl url = m_viewAccessor.dirModel()->itemForIndex(dirIndex).url();
1198             if (m_newFileNames.contains(url.fileName())) {
1199                 selection.merge(QItemSelection(proxyIndex, proxyIndex), QItemSelectionModel::Select);
1200             }
1201         }
1202         m_viewAccessor.itemView()->selectionModel()->select(selection, QItemSelectionModel::Select);
1203
1204         m_newFileNames.clear();
1205     }
1206 }
1207
1208 void DolphinView::slotLoadingCompleted()
1209 {
1210     m_expanderActive = false;
1211     m_loadingDirectory = false;
1212
1213     if (!m_activeItemUrl.isEmpty()) {
1214         // assure that the current item remains visible
1215         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_activeItemUrl);
1216         if (dirIndex.isValid()) {
1217             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1218             QAbstractItemView* view = m_viewAccessor.itemView();
1219             const bool clearSelection = !hasSelection();
1220             view->setCurrentIndex(proxyIndex);
1221             if (clearSelection) {
1222                 view->clearSelection();
1223             }
1224             m_activeItemUrl.clear();
1225         }
1226     }
1227
1228     if (!m_selectedItems.isEmpty()) {
1229         const KUrl& baseUrl = url();
1230         KUrl url;
1231         QItemSelection newSelection;
1232         foreach(const KFileItem& item, m_selectedItems) {
1233             url = item.url().upUrl();
1234             if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
1235                 QModelIndex index = m_viewAccessor.proxyModel()->mapFromSource(m_viewAccessor.dirModel()->indexForItem(item));
1236                 newSelection.select(index, index);
1237             }
1238         }
1239         m_viewAccessor.itemView()->selectionModel()->select(newSelection,
1240                                                             QItemSelectionModel::ClearAndSelect
1241                                                             | QItemSelectionModel::Current);
1242         m_selectedItems.clear();
1243     }
1244
1245     // Restore the contents position. This has to be done using a Qt::QueuedConnection
1246     // because the view might not be in its final state yet.
1247     QMetaObject::invokeMethod(this, "restoreContentsPosition", Qt::QueuedConnection);
1248 }
1249
1250 void DolphinView::slotRefreshItems()
1251 {
1252     if (m_assureVisibleCurrentIndex) {
1253         m_assureVisibleCurrentIndex = false;
1254         m_viewAccessor.itemView()->scrollTo(m_viewAccessor.itemView()->currentIndex());
1255     }
1256 }
1257
1258 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1259 {
1260     if (!url.isValid()) {
1261         const QString location(url.pathOrUrl());
1262         if (location.isEmpty()) {
1263             emit errorMessage(i18nc("@info:status", "The location is empty."));
1264         } else {
1265             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1266         }
1267         return;
1268     }
1269
1270     m_loadingDirectory = true;
1271     m_expanderActive = false;
1272
1273     m_viewAccessor.dirLister()->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
1274 }
1275
1276 void DolphinView::applyViewProperties()
1277 {
1278     if (m_ignoreViewProperties) {
1279         return;
1280     }
1281
1282     const ViewProperties props(rootUrl());
1283
1284     const Mode mode = props.viewMode();
1285     if (m_mode != mode) {
1286         const int oldZoomLevel = m_controller->zoomLevel();
1287
1288         m_mode = mode;
1289         createView();
1290         emit modeChanged();
1291
1292         updateZoomLevel(oldZoomLevel);
1293     }
1294     if (m_viewAccessor.itemView() == 0) {
1295         createView();
1296     }
1297     Q_ASSERT(m_viewAccessor.itemView() != 0);
1298     Q_ASSERT(m_viewAccessor.itemDelegate() != 0);
1299
1300     const bool showHiddenFiles = props.showHiddenFiles();
1301     if (showHiddenFiles != m_viewAccessor.dirLister()->showingDotFiles()) {
1302         m_viewAccessor.dirLister()->setShowingDotFiles(showHiddenFiles);
1303         emit showHiddenFilesChanged();
1304     }
1305
1306     m_storedCategorizedSorting = props.categorizedSorting();
1307     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1308     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
1309         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
1310         emit categorizedSortingChanged();
1311     }
1312
1313     const DolphinView::Sorting sorting = props.sorting();
1314     if (sorting != m_viewAccessor.proxyModel()->sorting()) {
1315         m_viewAccessor.proxyModel()->setSorting(sorting);
1316         emit sortingChanged(sorting);
1317     }
1318
1319     const Qt::SortOrder sortOrder = props.sortOrder();
1320     if (sortOrder != m_viewAccessor.proxyModel()->sortOrder()) {
1321         m_viewAccessor.proxyModel()->setSortOrder(sortOrder);
1322         emit sortOrderChanged(sortOrder);
1323     }
1324
1325     const bool sortFoldersFirst = props.sortFoldersFirst();
1326     if (sortFoldersFirst != m_viewAccessor.proxyModel()->sortFoldersFirst()) {
1327         m_viewAccessor.proxyModel()->setSortFoldersFirst(sortFoldersFirst);
1328         emit sortFoldersFirstChanged(sortFoldersFirst);
1329     }
1330
1331     KFileItemDelegate::InformationList info = props.additionalInfo();
1332     if (info != m_viewAccessor.itemDelegate()->showInformation()) {
1333         m_viewAccessor.itemDelegate()->setShowInformation(info);
1334         emit additionalInfoChanged();
1335     }
1336
1337     const bool showPreview = props.showPreview();
1338     if (showPreview != m_showPreview) {
1339         m_showPreview = showPreview;
1340         const int oldZoomLevel = m_controller->zoomLevel();
1341         emit showPreviewChanged();
1342
1343         // Enabling or disabling the preview might change the icon size of the view.
1344         // As the view does not emit a signal when the icon size has been changed,
1345         // the used zoom level of the controller must be adjusted manually:
1346         updateZoomLevel(oldZoomLevel);
1347     }
1348
1349     if (DolphinSettings::instance().generalSettings()->globalViewProps()) {
1350         // During the lifetime of a DolphinView instance the global view properties
1351         // should not be changed. This allows e. g. to split a view and use different
1352         // view properties for each view.
1353         m_ignoreViewProperties = true;
1354     }
1355 }
1356
1357 void DolphinView::createView()
1358 {
1359     deleteView();
1360
1361     Q_ASSERT(m_viewAccessor.itemView() == 0);
1362     m_viewAccessor.createView(this, m_controller, m_mode);
1363
1364     QAbstractItemView* view = m_viewAccessor.itemView();
1365     Q_ASSERT(view != 0);
1366     view->installEventFilter(this);
1367     view->viewport()->installEventFilter(this);
1368
1369     m_controller->setItemView(view);
1370
1371     // When changing the view mode, the selection is lost due to reinstantiating
1372     // a new item view with a custom selection model. Pass the ownership of the
1373     // selection model to DolphinView, so that it can be shared by all item views.
1374     if (m_selectionModel != 0) {
1375         view->setSelectionModel(m_selectionModel);
1376     } else {
1377         m_selectionModel = view->selectionModel();
1378     }
1379     m_selectionModel->setParent(this);
1380     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
1381             this, SLOT(slotSelectionChanged(const QItemSelection&, const QItemSelection&)));
1382
1383     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
1384             this, SLOT(emitContentsMoved()));
1385     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
1386             this, SLOT(emitContentsMoved()));
1387
1388     setFocusProxy(m_viewAccessor.layoutTarget());
1389     m_topLayout->insertWidget(1, m_viewAccessor.layoutTarget());
1390 }
1391
1392 void DolphinView::deleteView()
1393 {
1394     QAbstractItemView* view = m_viewAccessor.itemView();
1395     if (view != 0) {
1396         // It's important to set the keyboard focus to the parent
1397         // before deleting the view: Otherwise when having a split
1398         // view the other view will get the focus and will request
1399         // an activation (see DolphinView::eventFilter()).
1400         setFocusProxy(0);
1401         setFocus();
1402
1403         m_topLayout->removeWidget(view);
1404         view->close();
1405
1406         // disconnect all signal/slots
1407         disconnect(view);
1408         m_controller->disconnect(view);
1409         view->disconnect();
1410         disconnect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
1411                    this, SLOT(emitContentsMoved()));
1412         disconnect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
1413                    this, SLOT(emitContentsMoved()));
1414
1415         m_viewAccessor.deleteView();
1416     }
1417 }
1418
1419 void DolphinView::pasteToUrl(const KUrl& url)
1420 {
1421     addNewFileNames(QApplication::clipboard()->mimeData());
1422     KonqOperations::doPaste(this, url);
1423 }
1424
1425 void DolphinView::updateZoomLevel(int oldZoomLevel)
1426 {
1427     const int newZoomLevel = ZoomLevelInfo::zoomLevelForIconSize(m_viewAccessor.itemView()->iconSize());
1428     if (oldZoomLevel != newZoomLevel) {
1429         m_controller->setZoomLevel(newZoomLevel);
1430         emit zoomLevelChanged(newZoomLevel);
1431     }
1432 }
1433
1434 KUrl::List DolphinView::simplifiedSelectedUrls() const
1435 {
1436     KUrl::List list = selectedUrls();
1437     if (itemsExpandable() ) {
1438         list = KDirModel::simplifiedUrlList(list);
1439     }
1440     return list;
1441 }
1442
1443 QMimeData* DolphinView::selectionMimeData() const
1444 {
1445     const QAbstractItemView* view = m_viewAccessor.itemView();
1446     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
1447     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
1448     return m_viewAccessor.dirModel()->mimeData(selection.indexes());
1449 }
1450
1451 void DolphinView::addNewFileNames(const QMimeData* mimeData)
1452 {
1453     const KUrl::List urls = KUrl::List::fromMimeData(mimeData);
1454     foreach (const KUrl& url, urls) {
1455         m_newFileNames.insert(url.fileName());
1456     }
1457 }
1458
1459 DolphinView::ViewAccessor::ViewAccessor(DolphinSortFilterProxyModel* proxyModel) :
1460     m_iconsView(0),
1461     m_detailsView(0),
1462     m_columnsContainer(0),
1463     m_proxyModel(proxyModel),
1464     m_dragSource(0)
1465 {
1466 }
1467
1468 DolphinView::ViewAccessor::~ViewAccessor()
1469 {
1470     delete m_dragSource;
1471     m_dragSource = 0;
1472 }
1473
1474 void DolphinView::ViewAccessor::createView(QWidget* parent,
1475                                            DolphinController* controller,
1476                                            Mode mode)
1477 {
1478     Q_ASSERT(itemView() == 0);
1479
1480     switch (mode) {
1481     case IconsView:
1482         m_iconsView = new DolphinIconsView(parent, controller, m_proxyModel);
1483         break;
1484
1485     case DetailsView:
1486         m_detailsView = new DolphinDetailsView(parent, controller, m_proxyModel);
1487         break;
1488
1489     case ColumnView:
1490         m_columnsContainer = new DolphinColumnViewContainer(parent, controller);
1491         break;
1492
1493     default:
1494         Q_ASSERT(false);
1495     }
1496 }
1497
1498 void DolphinView::ViewAccessor::deleteView()
1499 {
1500     QAbstractItemView* view = itemView();
1501     if (view != 0) {
1502         if (DragAndDropHelper::instance().isDragSource(view)) {
1503             // The view is a drag source (the feature "Open folders
1504             // during drag operations" is used). Deleting the view
1505             // during an ongoing drag operation is not allowed, so
1506             // this will postponed.
1507             if (m_dragSource != 0) {
1508                 // the old stored view is obviously not the drag source anymore
1509                 m_dragSource->deleteLater();
1510                 m_dragSource = 0;
1511             }
1512             view->hide();
1513             m_dragSource = view;
1514         } else {
1515             view->deleteLater();
1516         }
1517     }
1518
1519     m_iconsView = 0;
1520     m_detailsView = 0;
1521
1522     if (m_columnsContainer != 0) {
1523         m_columnsContainer->deleteLater();
1524     }
1525     m_columnsContainer = 0;
1526 }
1527
1528
1529 void DolphinView::ViewAccessor::prepareUrlChange(const KUrl& url)
1530 {
1531     if (m_columnsContainer != 0) {
1532         m_columnsContainer->showColumn(url);
1533     }
1534
1535     if(!m_detailsViewExpander.isNull()) {
1536         // Stop expanding items in the current folder
1537         m_detailsViewExpander->stop();
1538     }
1539 }
1540
1541 QAbstractItemView* DolphinView::ViewAccessor::itemView() const
1542 {
1543     if (m_iconsView != 0) {
1544         return m_iconsView;
1545     }
1546
1547     if (m_detailsView != 0) {
1548         return m_detailsView;
1549     }
1550
1551     if (m_columnsContainer != 0) {
1552         return m_columnsContainer->activeColumn();
1553     }
1554
1555     return 0;
1556 }
1557
1558 KFileItemDelegate* DolphinView::ViewAccessor::itemDelegate() const
1559 {
1560     return static_cast<KFileItemDelegate*>(itemView()->itemDelegate());
1561 }
1562
1563 QWidget* DolphinView::ViewAccessor::layoutTarget() const
1564 {
1565     if (m_columnsContainer != 0) {
1566         return m_columnsContainer;
1567     }
1568     return itemView();
1569 }
1570
1571 KUrl DolphinView::ViewAccessor::rootUrl() const
1572 {
1573     return (m_columnsContainer != 0) ? m_columnsContainer->rootUrl() : KUrl();
1574 }
1575
1576 bool DolphinView::ViewAccessor::supportsCategorizedSorting() const
1577 {
1578     return m_iconsView != 0;
1579 }
1580
1581 bool DolphinView::ViewAccessor::itemsExpandable() const
1582 {
1583     return (m_detailsView != 0) && m_detailsView->itemsExpandable();
1584 }
1585
1586
1587 QSet<KUrl> DolphinView::ViewAccessor::expandedUrls() const
1588 {
1589     if(m_detailsView != 0) {
1590         return m_detailsView->expandedUrls();
1591     }
1592     else {
1593         return QSet<KUrl>();
1594     }
1595 }
1596
1597 const DolphinDetailsViewExpander* DolphinView::ViewAccessor::setExpandedUrls(const QSet<KUrl>& urlsToExpand)
1598 {
1599     if((m_detailsView != 0) && m_detailsView->itemsExpandable() && !urlsToExpand.isEmpty()) {
1600         m_detailsViewExpander = new DolphinDetailsViewExpander(m_detailsView, urlsToExpand);
1601         return m_detailsViewExpander;
1602     }
1603     else {
1604         return 0;
1605     }
1606 }
1607
1608 bool DolphinView::ViewAccessor::reloadOnAdditionalInfoChange() const
1609 {
1610     // the details view requires no reloading of the directory, as it maps
1611     // the file item delegate info to its columns internally
1612     return m_detailsView != 0;
1613 }
1614
1615 DolphinModel* DolphinView::ViewAccessor::dirModel() const
1616 {
1617     return static_cast<DolphinModel*>(proxyModel()->sourceModel());
1618 }
1619
1620 DolphinSortFilterProxyModel* DolphinView::ViewAccessor::proxyModel() const
1621 {
1622     if (m_columnsContainer != 0) {
1623         return static_cast<DolphinSortFilterProxyModel*>(m_columnsContainer->activeColumn()->model());
1624     }
1625     return m_proxyModel;
1626 }
1627
1628 KDirLister* DolphinView::ViewAccessor::dirLister() const
1629 {
1630     return dirModel()->dirLister();
1631 }
1632
1633 void DolphinView::slotRedirection(const KUrl& oldUrl, const KUrl& newUrl)
1634 {
1635     emit redirection(oldUrl, newUrl);
1636     m_controller->redirectToUrl(newUrl); // #186947
1637 }
1638
1639 void DolphinView::restoreContentsPosition()
1640 {
1641     if (!m_restoredContentsPosition.isNull()) {
1642         setContentsPosition(m_restoredContentsPosition.x(), m_restoredContentsPosition.y());
1643         m_restoredContentsPosition = QPoint();
1644     }
1645 }
1646
1647 #include "dolphinview.moc"