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