src/views/dolphinview.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006-2009 by Peter Penz <peter.penz@gmx.at>             *
   3  *   Copyright (C) 2006 by Gregor Kališnik <gregor@podnapisi.net>          *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  19  ***************************************************************************/
  20
  21 #include "dolphinview.h"
  22
  23 #include <QAbstractItemView>
  24 #include <QApplication>
  25 #include <QClipboard>
  26 #include <QKeyEvent>
  27 #include <QItemSelection>
  28 #include <QBoxLayout>
  29 #include <QTimer>
  30 #include <QScrollBar>
  31
  32 #include <kactioncollection.h>
  33 #include <kcolorscheme.h>
  34 #include <kdirlister.h>
  35 #include <kiconeffect.h>
  36 #include <kfileitem.h>
  37 #include <klocale.h>
  38 #include <kio/deletejob.h>
  39 #include <kio/netaccess.h>
  40 #include <kio/previewjob.h>
  41 #include <kjob.h>
  42 #include <kmenu.h>
  43 #include <kmessagebox.h>
  44 #include <kmimetyperesolver.h>
  45 #include <konq_fileitemcapabilities.h>
  46 #include <konq_operations.h>
  47 #include <konqmimedata.h>
  48 #include <kstringhandler.h>
  49 #include <ktoggleaction.h>
  50 #include <kurl.h>
  51
  52 #include "additionalinfoaccessor.h"
  53 #include "dolphinmodel.h"
  54 #include "dolphincolumnviewcontainer.h"
  55 #include "dolphinviewcontroller.h"
  56 #include "dolphindetailsview.h"
  57 #include "dolphinfileitemdelegate.h"
  58 #include "dolphinnewfilemenuobserver.h"
  59 #include "dolphinsortfilterproxymodel.h"
  60 #include "dolphin_detailsmodesettings.h"
  61 #include "dolphiniconsview.h"
  62 #include "dolphin_generalsettings.h"
  63 #include "draganddrophelper.h"
  64 #include "renamedialog.h"
  65 #include "settings/dolphinsettings.h"
  66 #include "viewmodecontroller.h"
  67 #include "viewproperties.h"
  68 #include "zoomlevelinfo.h"
  69 #include "dolphindetailsviewexpander.h"
  70
  71 /**
  72  * Helper function for sorting items with qSort() in
  73  * DolphinView::renameSelectedItems().
  74  */
  75 bool lessThan(const KFileItem& item1, const KFileItem& item2)
  76 {
  77     return KStringHandler::naturalCompare(item1.name(), item2.name()) < 0;
  78 }
  79
  80 DolphinView::DolphinView(QWidget* parent,
  81                          const KUrl& url,
  82                          DolphinSortFilterProxyModel* proxyModel) :
  83     QWidget(parent),
  84     m_active(true),
  85     m_showPreview(false),
  86     m_storedCategorizedSorting(false),
  87     m_tabsForFiles(false),
  88     m_isContextMenuOpen(false),
  89     m_assureVisibleCurrentIndex(false),
  90     m_mode(DolphinView::IconsView),
  91     m_topLayout(0),
  92     m_dolphinViewController(0),
  93     m_viewModeController(0),
  94     m_viewAccessor(proxyModel),
  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_dolphinViewController = new DolphinViewController(this);
 108
 109     m_viewModeController = new ViewModeController(this);
 110     m_viewModeController->setUrl(url);
 111
 112     connect(m_viewModeController, SIGNAL(urlChanged(const KUrl&)),
 113             this, SIGNAL(urlChanged(const KUrl&)));
 114
 115     connect(m_dolphinViewController, SIGNAL(requestContextMenu(const QPoint&, const QList<QAction*>&)),
 116             this, SLOT(openContextMenu(const QPoint&, const QList<QAction*>&)));
 117     connect(m_dolphinViewController, SIGNAL(urlsDropped(const KFileItem&, const KUrl&, QDropEvent*)),
 118             this, SLOT(dropUrls(const KFileItem&, const KUrl&, QDropEvent*)));
 119     connect(m_dolphinViewController, SIGNAL(sortingChanged(DolphinView::Sorting)),
 120             this, SLOT(updateSorting(DolphinView::Sorting)));
 121     connect(m_dolphinViewController, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 122             this, SLOT(updateSortOrder(Qt::SortOrder)));
 123     connect(m_dolphinViewController, SIGNAL(sortFoldersFirstChanged(bool)),
 124             this, SLOT(updateSortFoldersFirst(bool)));
 125     connect(m_dolphinViewController, SIGNAL(additionalInfoChanged(const KFileItemDelegate::InformationList&)),
 126             this, SLOT(updateAdditionalInfo(const KFileItemDelegate::InformationList&)));
 127     connect(m_dolphinViewController, SIGNAL(itemTriggered(const KFileItem&)),
 128             this, SLOT(triggerItem(const KFileItem&)));
 129     connect(m_dolphinViewController, SIGNAL(tabRequested(const KUrl&)),
 130             this, SIGNAL(tabRequested(const KUrl&)));
 131     connect(m_dolphinViewController, SIGNAL(activated()),
 132             this, SLOT(activate()));
 133     connect(m_dolphinViewController, SIGNAL(itemEntered(const KFileItem&)),
 134             this, SLOT(showHoverInformation(const KFileItem&)));
 135     connect(m_dolphinViewController, SIGNAL(viewportEntered()),
 136             this, SLOT(clearHoverInformation()));
 137     connect(m_dolphinViewController, SIGNAL(urlChangeRequested(KUrl)),
 138             m_viewModeController, SLOT(setUrl(KUrl)));
 139
 140     KDirLister* dirLister = m_viewAccessor.dirLister();
 141     connect(dirLister, SIGNAL(redirection(KUrl,KUrl)),
 142             this, SLOT(slotRedirection(KUrl,KUrl)));
 143     connect(dirLister, SIGNAL(completed()),
 144             this, SLOT(slotDirListerCompleted()));
 145     connect(dirLister, SIGNAL(refreshItems(const QList<QPair<KFileItem,KFileItem>>&)),
 146             this, SLOT(slotRefreshItems()));
 147
 148     // When a new item has been created by the "Create New..." menu, the item should
 149     // get selected and it must be assured that the item will get visible. As the
 150     // creation is done asynchronously, several signals must be checked:
 151     connect(&DolphinNewFileMenuObserver::instance(), SIGNAL(itemCreated(const KUrl&)),
 152             this, SLOT(observeCreatedItem(const KUrl&)));
 153
 154     m_selectionChangedTimer = new QTimer(this);
 155     m_selectionChangedTimer->setSingleShot(true);
 156     m_selectionChangedTimer->setInterval(300);
 157     connect(m_selectionChangedTimer, SIGNAL(timeout()),
 158             this, SLOT(emitSelectionChangedSignal()));
 159
 160     applyViewProperties();
 161     m_topLayout->addWidget(m_viewAccessor.layoutTarget());
 162 }
 163
 164 DolphinView::~DolphinView()
 165 {
 166 }
 167
 168 KUrl DolphinView::url() const
 169 {
 170     return m_viewModeController->url();
 171 }
 172
 173 KUrl DolphinView::rootUrl() const
 174 {
 175     const KUrl viewUrl = url();
 176     const KUrl root = m_viewAccessor.rootUrl();
 177     if (root.isEmpty() || !root.isParentOf(viewUrl)) {
 178         return viewUrl;
 179     }
 180     return root;
 181 }
 182
 183 void DolphinView::setActive(bool active)
 184 {
 185     if (active == m_active) {
 186         return;
 187     }
 188
 189     m_active = active;
 190
 191     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 192     if (active) {
 193         emitSelectionChangedSignal();
 194     } else {
 195         color.setAlpha(150);
 196     }
 197
 198     QWidget* viewport = m_viewAccessor.itemView()->viewport();
 199     QPalette palette;
 200     palette.setColor(viewport->backgroundRole(), color);
 201     viewport->setPalette(palette);
 202
 203     update();
 204
 205     if (active) {
 206         m_viewAccessor.itemView()->setFocus();
 207         emit activated();
 208     }
 209
 210     m_viewModeController->indicateActivationChange(active);
 211 }
 212
 213 bool DolphinView::isActive() const
 214 {
 215     return m_active;
 216 }
 217
 218 void DolphinView::setMode(Mode mode)
 219 {
 220     if (mode == m_mode) {
 221         return; // the wished mode is already set
 222     }
 223
 224     const int oldZoomLevel = m_viewModeController->zoomLevel();
 225     m_mode = mode;
 226
 227     // remember the currently selected items, so that they will
 228     // be restored after reloading the directory
 229     m_selectedItems = selectedItems();
 230
 231     deleteView();
 232
 233     const KUrl viewPropsUrl = rootUrl();
 234     ViewProperties props(viewPropsUrl);
 235     props.setViewMode(m_mode);
 236     createView();
 237
 238     // the file item delegate has been recreated, apply the current
 239     // additional information manually
 240     const KFileItemDelegate::InformationList infoList = props.additionalInfo();
 241     m_viewAccessor.itemDelegate()->setShowInformation(infoList);
 242     emit additionalInfoChanged();
 243
 244     // Not all view modes support categorized sorting. Adjust the sorting model
 245     // if changing the view mode results in a change of the categorized sorting
 246     // capabilities.
 247     m_storedCategorizedSorting = props.categorizedSorting();
 248     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 249     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
 250         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 251         emit categorizedSortingChanged();
 252     }
 253
 254     emit modeChanged();
 255
 256     updateZoomLevel(oldZoomLevel);
 257     loadDirectory(viewPropsUrl);
 258 }
 259
 260 DolphinView::Mode DolphinView::mode() const
 261 {
 262     return m_mode;
 263 }
 264
 265 bool DolphinView::showPreview() const
 266 {
 267     return m_showPreview;
 268 }
 269
 270 bool DolphinView::showHiddenFiles() const
 271 {
 272     return m_viewAccessor.dirLister()->showingDotFiles();
 273 }
 274
 275 bool DolphinView::categorizedSorting() const
 276 {
 277     // If all view modes would support categorized sorting, returning
 278     // m_viewAccessor.proxyModel()->isCategorizedModel() would be the way to go. As
 279     // currently only the icons view supports caterized sorting, we remember
 280     // the stored view properties state in m_storedCategorizedSorting and
 281     // return this state. The application takes care to disable the corresponding
 282     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 283     // that this setting is not applied to the current view mode.
 284     return m_storedCategorizedSorting;
 285 }
 286
 287 bool DolphinView::supportsCategorizedSorting() const
 288 {
 289     return m_viewAccessor.supportsCategorizedSorting();
 290 }
 291
 292 bool DolphinView::hasSelection() const
 293 {
 294     const QAbstractItemView* view = m_viewAccessor.itemView();
 295     return (view != 0) && view->selectionModel()->hasSelection();
 296 }
 297
 298 void DolphinView::markUrlsAsSelected(const QList<KUrl>& urls)
 299 {
 300     foreach (const KUrl& url, urls) {
 301         KFileItem item(KFileItem::Unknown, KFileItem::Unknown, url);
 302         m_selectedItems.append(item);
 303     }
 304 }
 305
 306 KFileItemList DolphinView::selectedItems() const
 307 {
 308     KFileItemList itemList;
 309     const QAbstractItemView* view = m_viewAccessor.itemView();
 310     if (view == 0) {
 311         return itemList;
 312     }
 313
 314     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
 315
 316     const QModelIndexList indexList = selection.indexes();
 317     foreach (const QModelIndex &index, indexList) {
 318         KFileItem item = m_viewAccessor.dirModel()->itemForIndex(index);
 319         if (!item.isNull()) {
 320             itemList.append(item);
 321         }
 322     }
 323
 324     return itemList;
 325 }
 326
 327 KUrl::List DolphinView::selectedUrls() const
 328 {
 329     KUrl::List urls;
 330     const KFileItemList list = selectedItems();
 331     foreach (const KFileItem &item, list) {
 332         urls.append(item.url());
 333     }
 334     return urls;
 335 }
 336
 337 int DolphinView::selectedItemsCount() const
 338 {
 339     const QAbstractItemView* view = m_viewAccessor.itemView();
 340     if (view == 0) {
 341         return 0;
 342     }
 343
 344     return view->selectionModel()->selectedIndexes().count();
 345 }
 346
 347 QItemSelectionModel* DolphinView::selectionModel() const
 348 {
 349     return m_viewAccessor.itemView()->selectionModel();
 350 }
 351
 352 void DolphinView::setZoomLevel(int level)
 353 {
 354     if (level < ZoomLevelInfo::minimumLevel()) {
 355         level = ZoomLevelInfo::minimumLevel();
 356     } else if (level > ZoomLevelInfo::maximumLevel()) {
 357         level = ZoomLevelInfo::maximumLevel();
 358     }
 359
 360     if (level != zoomLevel()) {
 361         m_viewModeController->setZoomLevel(level);
 362         emit zoomLevelChanged(level);
 363     }
 364 }
 365
 366 int DolphinView::zoomLevel() const
 367 {
 368     return m_viewModeController->zoomLevel();
 369 }
 370
 371 void DolphinView::setSorting(Sorting sorting)
 372 {
 373     if (sorting != this->sorting()) {
 374         updateSorting(sorting);
 375     }
 376 }
 377
 378 DolphinView::Sorting DolphinView::sorting() const
 379 {
 380     return m_viewAccessor.proxyModel()->sorting();
 381 }
 382
 383 void DolphinView::setSortOrder(Qt::SortOrder order)
 384 {
 385     if (sortOrder() != order) {
 386         updateSortOrder(order);
 387     }
 388 }
 389
 390 Qt::SortOrder DolphinView::sortOrder() const
 391 {
 392     return m_viewAccessor.proxyModel()->sortOrder();
 393 }
 394
 395 void DolphinView::setSortFoldersFirst(bool foldersFirst)
 396 {
 397     if (sortFoldersFirst() != foldersFirst) {
 398         updateSortFoldersFirst(foldersFirst);
 399     }
 400 }
 401
 402 bool DolphinView::sortFoldersFirst() const
 403 {
 404     return m_viewAccessor.proxyModel()->sortFoldersFirst();
 405 }
 406
 407 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 408 {
 409     const KUrl viewPropsUrl = rootUrl();
 410     ViewProperties props(viewPropsUrl);
 411     props.setAdditionalInfo(info);
 412     m_viewAccessor.itemDelegate()->setShowInformation(info);
 413
 414     emit additionalInfoChanged();
 415
 416     if (m_viewAccessor.reloadOnAdditionalInfoChange()) {
 417         loadDirectory(viewPropsUrl);
 418     }
 419 }
 420
 421 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 422 {
 423     return m_viewAccessor.itemDelegate()->showInformation();
 424 }
 425
 426 void DolphinView::reload()
 427 {
 428     QByteArray viewState;
 429     QDataStream saveStream(&viewState, QIODevice::WriteOnly);
 430     saveState(saveStream);
 431     m_selectedItems= selectedItems();
 432
 433     setUrl(url());
 434     loadDirectory(url(), true);
 435
 436     QDataStream restoreStream(viewState);
 437     restoreState(restoreStream);
 438 }
 439
 440 void DolphinView::refresh()
 441 {
 442     const bool oldActivationState = m_active;
 443     const int oldZoomLevel = m_viewModeController->zoomLevel();
 444     m_active = true;
 445
 446     createView();
 447     applyViewProperties();
 448     reload();
 449
 450     setActive(oldActivationState);
 451     updateZoomLevel(oldZoomLevel);
 452 }
 453
 454 void DolphinView::setNameFilter(const QString& nameFilter)
 455 {
 456     m_viewModeController->setNameFilter(nameFilter);
 457 }
 458
 459 void DolphinView::calculateItemCount(int& fileCount,
 460                                      int& folderCount,
 461                                      KIO::filesize_t& totalFileSize) const
 462 {
 463     foreach (const KFileItem& item, m_viewAccessor.dirLister()->items()) {
 464         if (item.isDir()) {
 465             ++folderCount;
 466         } else {
 467             ++fileCount;
 468             totalFileSize += item.size();
 469         }
 470     }
 471 }
 472
 473 QString DolphinView::statusBarText() const
 474 {
 475     QString text;
 476     int folderCount = 0;
 477     int fileCount = 0;
 478     KIO::filesize_t totalFileSize = 0;
 479
 480     if (hasSelection()) {
 481         // give a summary of the status of the selected files
 482         const KFileItemList list = selectedItems();
 483         if (list.isEmpty()) {
 484             // when an item is triggered, it is temporary selected but selectedItems()
 485             // will return an empty list
 486             return text;
 487         }
 488
 489         KFileItemList::const_iterator it = list.begin();
 490         const KFileItemList::const_iterator end = list.end();
 491         while (it != end) {
 492             const KFileItem& item = *it;
 493             if (item.isDir()) {
 494                 ++folderCount;
 495             } else {
 496                 ++fileCount;
 497                 totalFileSize += item.size();
 498             }
 499             ++it;
 500         }
 501
 502         if (folderCount + fileCount == 1) {
 503             // if only one item is selected, show the filename
 504             const QString name = list.first().text();
 505             text = (folderCount == 1) ? i18nc("@info:status", "<filename>%1</filename> selected", name) :
 506                                         i18nc("@info:status", "<filename>%1</filename> selected (%2)",
 507                                               name, KIO::convertSize(totalFileSize));
 508         } else {
 509             // at least 2 items are selected
 510             const QString foldersText = i18ncp("@info:status", "1 Folder selected", "%1 Folders selected", folderCount);
 511             const QString filesText = i18ncp("@info:status", "1 File selected", "%1 Files selected", fileCount);
 512             if ((folderCount > 0) && (fileCount > 0)) {
 513                 text = i18nc("@info:status folders, files (size)", "%1, %2 (%3)",
 514                              foldersText, filesText, KIO::convertSize(totalFileSize));
 515             } else if (fileCount > 0) {
 516                 text = i18nc("@info:status files (size)", "%1 (%2)", filesText, KIO::convertSize(totalFileSize));
 517             } else {
 518                 Q_ASSERT(folderCount > 0);
 519                 text = foldersText;
 520             }
 521         }
 522     } else {
 523         calculateItemCount(fileCount, folderCount, totalFileSize);
 524         text = KIO::itemsSummaryString(fileCount + folderCount,
 525                                        fileCount, folderCount,
 526                                        totalFileSize, true);
 527     }
 528
 529     return text;
 530 }
 531
 532 QList<QAction*> DolphinView::versionControlActions(const KFileItemList& items) const
 533 {
 534     return m_dolphinViewController->versionControlActions(items);
 535 }
 536
 537 void DolphinView::setUrl(const KUrl& url)
 538 {
 539     if (m_viewModeController->url() == url) {
 540         return;
 541     }
 542
 543     // The selection model might change in the case of the column view. Disconnect
 544     // from the current selection model and reconnect later after the URL switch.
 545     QAbstractItemView* view = m_viewAccessor.itemView();
 546     disconnect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
 547                this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
 548
 549     m_newFileNames.clear();
 550
 551     m_viewModeController->setUrl(url); // emits urlChanged, which we forward
 552     m_viewAccessor.prepareUrlChange(url);
 553     applyViewProperties();
 554     loadDirectory(url);
 555
 556     // When changing the URL there is no need to keep the version
 557     // data of the previous URL.
 558     m_viewAccessor.dirModel()->clearVersionData();
 559
 560     emit startedPathLoading(url);
 561
 562     // Reconnect to the (probably) new selection model
 563     view = m_viewAccessor.itemView();
 564     connect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
 565             this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
 566 }
 567
 568 void DolphinView::selectAll()
 569 {
 570     m_viewAccessor.itemView()->selectAll();
 571 }
 572
 573 void DolphinView::invertSelection()
 574 {
 575     QItemSelectionModel* selectionModel = m_viewAccessor.itemView()->selectionModel();
 576     const QAbstractItemModel* itemModel = selectionModel->model();
 577
 578     const QModelIndex topLeft = itemModel->index(0, 0);
 579     const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 580                                                      itemModel->columnCount() - 1);
 581
 582     const QItemSelection selection(topLeft, bottomRight);
 583     selectionModel->select(selection, QItemSelectionModel::Toggle);
 584 }
 585
 586 void DolphinView::clearSelection()
 587 {
 588     m_viewAccessor.itemView()->clearSelection();
 589 }
 590
 591 void DolphinView::renameSelectedItems()
 592 {
 593     KFileItemList items = selectedItems();
 594     const int itemCount = items.count();
 595     if (itemCount < 1) {
 596         return;
 597     }
 598
 599     if (itemCount > 1) {
 600         // More than one item has been selected for renaming. Open
 601         // a rename dialog and rename all items afterwards.
 602         QPointer<RenameDialog> dialog = new RenameDialog(this, items);
 603         if (dialog->exec() == QDialog::Rejected) {
 604             delete dialog;
 605             return;
 606         }
 607
 608         const QString newName = dialog->newName();
 609         if (newName.isEmpty()) {
 610             emit errorMessage(dialog->errorString());
 611             delete dialog;
 612             return;
 613         }
 614         delete dialog;
 615
 616         // the selection would be invalid after renaming the items, so just clear
 617         // it before
 618         clearSelection();
 619
 620         // TODO: check how this can be integrated into KIO::FileUndoManager/KonqOperations
 621         // as one operation instead of n rename operations like it is done now...
 622         Q_ASSERT(newName.contains('#'));
 623
 624         // currently the items are sorted by the selection order, resort
 625         // them by the file name
 626         qSort(items.begin(), items.end(), lessThan);
 627
 628         // iterate through all selected items and rename them...
 629         int index = 1;
 630         foreach (const KFileItem& item, items) {
 631             const KUrl& oldUrl = item.url();
 632             QString number;
 633             number.setNum(index++);
 634
 635             QString name = newName;
 636             name.replace('#', number);
 637
 638             if (oldUrl.fileName() != name) {
 639                 KUrl newUrl = oldUrl;
 640                 newUrl.setFileName(name);
 641                 KonqOperations::rename(this, oldUrl, newUrl);
 642             }
 643         }
 644     } else if (DolphinSettings::instance().generalSettings()->renameInline()) {
 645         Q_ASSERT(itemCount == 1);
 646         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForItem(items.first());
 647         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
 648         m_viewAccessor.itemView()->edit(proxyIndex);
 649     } else {
 650         Q_ASSERT(itemCount == 1);
 651
 652         QPointer<RenameDialog> dialog = new RenameDialog(this, items);
 653         if (dialog->exec() == QDialog::Rejected) {
 654             delete dialog;
 655             return;
 656         }
 657
 658         const QString newName = dialog->newName();
 659         if (newName.isEmpty()) {
 660             emit errorMessage(dialog->errorString());
 661             delete dialog;
 662             return;
 663         }
 664         delete dialog;
 665
 666         const KUrl& oldUrl = items.first().url();
 667         KUrl newUrl = oldUrl;
 668         newUrl.setFileName(newName);
 669         KonqOperations::rename(this, oldUrl, newUrl);
 670     }
 671
 672     // assure that the current index remains visible when KDirLister
 673     // will notify the view about changed items
 674     m_assureVisibleCurrentIndex = true;
 675 }
 676
 677 void DolphinView::trashSelectedItems()
 678 {
 679     const KUrl::List list = simplifiedSelectedUrls();
 680     KonqOperations::del(this, KonqOperations::TRASH, list);
 681 }
 682
 683 void DolphinView::deleteSelectedItems()
 684 {
 685     const KUrl::List list = simplifiedSelectedUrls();
 686     const bool del = KonqOperations::askDeleteConfirmation(list,
 687                      KonqOperations::DEL,
 688                      KonqOperations::DEFAULT_CONFIRMATION,
 689                      this);
 690
 691     if (del) {
 692         KIO::Job* job = KIO::del(list);
 693         connect(job, SIGNAL(result(KJob*)),
 694                 this, SLOT(slotDeleteFileFinished(KJob*)));
 695     }
 696 }
 697
 698 void DolphinView::cutSelectedItems()
 699 {
 700     QMimeData* mimeData = selectionMimeData();
 701     KonqMimeData::addIsCutSelection(mimeData, true);
 702     QApplication::clipboard()->setMimeData(mimeData);
 703 }
 704
 705 void DolphinView::copySelectedItems()
 706 {
 707     QMimeData* mimeData = selectionMimeData();
 708     QApplication::clipboard()->setMimeData(mimeData);
 709 }
 710
 711 void DolphinView::paste()
 712 {
 713     pasteToUrl(url());
 714 }
 715
 716 void DolphinView::pasteIntoFolder()
 717 {
 718     const KFileItemList items = selectedItems();
 719     if ((items.count() == 1) && items.first().isDir()) {
 720         pasteToUrl(items.first().url());
 721     }
 722 }
 723
 724 void DolphinView::setShowPreview(bool show)
 725 {
 726     if (m_showPreview == show) {
 727         return;
 728     }
 729
 730     const KUrl viewPropsUrl = rootUrl();
 731     ViewProperties props(viewPropsUrl);
 732     props.setShowPreview(show);
 733
 734     m_showPreview = show;
 735     const int oldZoomLevel = m_viewModeController->zoomLevel();
 736     emit showPreviewChanged();
 737
 738     // Enabling or disabling the preview might change the icon size of the view.
 739     // As the view does not emit a signal when the icon size has been changed,
 740     // the used zoom level of the controller must be adjusted manually:
 741     updateZoomLevel(oldZoomLevel);
 742 }
 743
 744 void DolphinView::setShowHiddenFiles(bool show)
 745 {
 746     if (m_viewAccessor.dirLister()->showingDotFiles() == show) {
 747         return;
 748     }
 749
 750     const KUrl viewPropsUrl = rootUrl();
 751     ViewProperties props(viewPropsUrl);
 752     props.setShowHiddenFiles(show);
 753
 754     m_viewAccessor.dirLister()->setShowingDotFiles(show);
 755     emit showHiddenFilesChanged();
 756 }
 757
 758 void DolphinView::setCategorizedSorting(bool categorized)
 759 {
 760     if (categorized == categorizedSorting()) {
 761         return;
 762     }
 763
 764     // setCategorizedSorting(true) may only get invoked
 765     // if the view supports categorized sorting
 766     Q_ASSERT(!categorized || supportsCategorizedSorting());
 767
 768     ViewProperties props(rootUrl());
 769     props.setCategorizedSorting(categorized);
 770     props.save();
 771
 772     m_storedCategorizedSorting = categorized;
 773     m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 774
 775     emit categorizedSortingChanged();
 776 }
 777
 778 void DolphinView::toggleSortOrder()
 779 {
 780     const Qt::SortOrder order = (sortOrder() == Qt::AscendingOrder) ?
 781                                 Qt::DescendingOrder :
 782                                 Qt::AscendingOrder;
 783     setSortOrder(order);
 784 }
 785
 786 void DolphinView::toggleSortFoldersFirst()
 787 {
 788     setSortFoldersFirst(!sortFoldersFirst());
 789 }
 790
 791 void DolphinView::toggleAdditionalInfo(QAction* action)
 792 {
 793     const KFileItemDelegate::Information info =
 794         static_cast<KFileItemDelegate::Information>(action->data().toInt());
 795
 796     KFileItemDelegate::InformationList list = additionalInfo();
 797
 798     const bool show = action->isChecked();
 799
 800     const int index = list.indexOf(info);
 801     const bool containsInfo = (index >= 0);
 802     if (show && !containsInfo) {
 803         list.append(info);
 804         setAdditionalInfo(list);
 805     } else if (!show && containsInfo) {
 806         list.removeAt(index);
 807         setAdditionalInfo(list);
 808         Q_ASSERT(list.indexOf(info) < 0);
 809     }
 810 }
 811
 812 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 813 {
 814     QWidget::mouseReleaseEvent(event);
 815     setActive(true);
 816 }
 817
 818 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 819 {
 820     switch (event->type()) {
 821     case QEvent::FocusIn:
 822         if (watched == m_viewAccessor.itemView()) {
 823             m_dolphinViewController->requestActivation();
 824         }
 825         break;
 826
 827     case QEvent::DragEnter:
 828         if (watched == m_viewAccessor.itemView()->viewport()) {
 829             setActive(true);
 830         }
 831         break;
 832
 833     case QEvent::KeyPress:
 834         if (watched == m_viewAccessor.itemView()) {
 835             // clear the selection when Escape has been pressed
 836             QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
 837             if (keyEvent->key() == Qt::Key_Escape) {
 838                 clearSelection();
 839             }
 840         }
 841         break;
 842
 843     case QEvent::Wheel:
 844         if (watched == m_viewAccessor.itemView()->viewport()) {
 845             // Ctrl+wheel events should cause icon zooming, but not if the left mouse button is pressed
 846             // (the user is probably trying to scroll during a selection in that case)
 847             QWheelEvent* wheelEvent = static_cast<QWheelEvent*>(event);
 848             if (wheelEvent->modifiers() & Qt::ControlModifier && !(wheelEvent->buttons() & Qt::LeftButton)) {
 849                 const int delta = wheelEvent->delta();
 850                 const int level = zoomLevel();
 851                 if (delta > 0) {
 852                     setZoomLevel(level + 1);
 853                 } else if (delta < 0) {
 854                     setZoomLevel(level - 1);
 855                 }
 856                 return true;
 857             }
 858         }
 859         break;
 860
 861     default:
 862         break;
 863     }
 864
 865     return QWidget::eventFilter(watched, event);
 866 }
 867
 868 void DolphinView::activate()
 869 {
 870     setActive(true);
 871 }
 872
 873 void DolphinView::triggerItem(const KFileItem& item)
 874 {
 875     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 876     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 877         // items are selected by the user, hence don't trigger the
 878         // item specified by 'index'
 879         return;
 880     }
 881
 882     // TODO: the m_isContextMenuOpen check is a workaround for Qt-issue 207192
 883     if (item.isNull() || m_isContextMenuOpen) {
 884         return;
 885     }
 886
 887     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 888 }
 889
 890 void DolphinView::slotSelectionChanged(const QItemSelection& selected, const QItemSelection& deselected)
 891 {
 892     const int count = selectedItemsCount();
 893     const bool selectionStateChanged = ((count >  0) && (selected.count() == count)) ||
 894                                        ((count == 0) && !deselected.isEmpty());
 895
 896     // If nothing has been selected before and something got selected (or if something
 897     // was selected before and now nothing is selected) the selectionChangedSignal must
 898     // be emitted asynchronously as fast as possible to update the edit-actions.
 899     m_selectionChangedTimer->setInterval(selectionStateChanged ? 0 : 300);
 900     m_selectionChangedTimer->start();
 901 }
 902
 903 void DolphinView::emitSelectionChangedSignal()
 904 {
 905     emit selectionChanged(DolphinView::selectedItems());
 906 }
 907
 908 void DolphinView::openContextMenu(const QPoint& pos,
 909                                   const QList<QAction*>& customActions)
 910 {
 911     KFileItem item;
 912     const QModelIndex index = m_viewAccessor.itemView()->indexAt(pos);
 913     if (index.isValid() && (index.column() == DolphinModel::Name)) {
 914         const QModelIndex dolphinModelIndex = m_viewAccessor.proxyModel()->mapToSource(index);
 915         item = m_viewAccessor.dirModel()->itemForIndex(dolphinModelIndex);
 916     }
 917
 918     m_isContextMenuOpen = true; // TODO: workaround for Qt-issue 207192
 919     emit requestContextMenu(item, url(), customActions);
 920     m_isContextMenuOpen = false;
 921 }
 922
 923 void DolphinView::dropUrls(const KFileItem& destItem,
 924                            const KUrl& destPath,
 925                            QDropEvent* event)
 926 {
 927     addNewFileNames(event->mimeData());
 928     DragAndDropHelper::instance().dropUrls(destItem, destPath, event, this);
 929 }
 930
 931 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 932 {
 933     ViewProperties props(rootUrl());
 934     props.setSorting(sorting);
 935
 936     m_viewAccessor.proxyModel()->setSorting(sorting);
 937
 938     emit sortingChanged(sorting);
 939 }
 940
 941 void DolphinView::updateSortOrder(Qt::SortOrder order)
 942 {
 943     ViewProperties props(rootUrl());
 944     props.setSortOrder(order);
 945
 946     m_viewAccessor.proxyModel()->setSortOrder(order);
 947
 948     emit sortOrderChanged(order);
 949 }
 950
 951 void DolphinView::updateSortFoldersFirst(bool foldersFirst)
 952 {
 953     ViewProperties props(rootUrl());
 954     props.setSortFoldersFirst(foldersFirst);
 955
 956     m_viewAccessor.proxyModel()->setSortFoldersFirst(foldersFirst);
 957
 958     emit sortFoldersFirstChanged(foldersFirst);
 959 }
 960
 961 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 962 {
 963     ViewProperties props(rootUrl());
 964     props.setAdditionalInfo(info);
 965     props.save();
 966
 967     m_viewAccessor.itemDelegate()->setShowInformation(info);
 968
 969     emit additionalInfoChanged();
 970 }
 971
 972 void DolphinView::updateAdditionalInfoActions(KActionCollection* collection)
 973 {
 974     const AdditionalInfoAccessor& infoAccessor = AdditionalInfoAccessor::instance();
 975
 976     const KFileItemDelegate::InformationList checkedInfo = m_viewAccessor.itemDelegate()->showInformation();
 977     const KFileItemDelegate::InformationList infoKeys = infoAccessor.keys();
 978
 979     const bool enable = (m_mode == DolphinView::DetailsView) ||
 980                         (m_mode == DolphinView::IconsView);
 981
 982     foreach (const KFileItemDelegate::Information& info, infoKeys) {
 983         const QString name = infoAccessor.actionCollectionName(info, AdditionalInfoAccessor::AdditionalInfoType);
 984         QAction* action = collection->action(name);
 985         Q_ASSERT(action != 0);
 986         action->setEnabled(enable);
 987         action->setChecked(checkedInfo.contains(info));
 988     }
 989 }
 990
 991 QPair<bool, QString> DolphinView::pasteInfo() const
 992 {
 993     return KonqOperations::pasteInfo(url());
 994 }
 995
 996 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
 997 {
 998     m_tabsForFiles = tabsForFiles;
 999 }
1000
1001 bool DolphinView::isTabsForFilesEnabled() const
1002 {
1003     return m_tabsForFiles;
1004 }
1005
1006 bool DolphinView::itemsExpandable() const
1007 {
1008     return m_viewAccessor.itemsExpandable();
1009 }
1010
1011 void DolphinView::restoreState(QDataStream& stream)
1012 {
1013     // current item
1014     stream >> m_activeItemUrl;
1015
1016     // view position
1017     stream >> m_restoredContentsPosition;
1018
1019     // expanded folders (only relevant for the details view - will be ignored by the view in other view modes)
1020     QSet<KUrl> urlsToExpand;
1021     stream >> urlsToExpand;
1022     const DolphinDetailsViewExpander* expander = m_viewAccessor.setExpandedUrls(urlsToExpand);
1023     if (expander != 0) {
1024         m_expanderActive = true;
1025         connect (expander, SIGNAL(completed()), this, SLOT(slotLoadingCompleted()));
1026     }
1027     else {
1028         m_expanderActive = false;
1029     }
1030 }
1031
1032 void DolphinView::saveState(QDataStream& stream)
1033 {
1034     // current item
1035     KFileItem currentItem;
1036     const QAbstractItemView* view = m_viewAccessor.itemView();
1037
1038     if (view != 0) {
1039         const QModelIndex proxyIndex = view->currentIndex();
1040         const QModelIndex dirModelIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
1041         currentItem = m_viewAccessor.dirModel()->itemForIndex(dirModelIndex);
1042     }
1043
1044     KUrl currentUrl;
1045     if (!currentItem.isNull()) {
1046         currentUrl = currentItem.url();
1047     }
1048
1049     stream << currentUrl;
1050
1051     // view position
1052     const int x = view->horizontalScrollBar()->value();
1053     const int y = view->verticalScrollBar()->value();
1054     stream << QPoint(x, y);
1055
1056     // expanded folders (only relevant for the details view - the set will be empty in other view modes)
1057     stream << m_viewAccessor.expandedUrls();
1058 }
1059
1060 void DolphinView::observeCreatedItem(const KUrl& url)
1061 {
1062     m_createdItemUrl = url;
1063     connect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
1064             this, SLOT(selectAndScrollToCreatedItem()));
1065 }
1066
1067 void DolphinView::selectAndScrollToCreatedItem()
1068 {
1069     const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_createdItemUrl);
1070     if (dirIndex.isValid()) {
1071         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1072         m_viewAccessor.itemView()->setCurrentIndex(proxyIndex);
1073     }
1074
1075     disconnect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
1076                this, SLOT(selectAndScrollToCreatedItem()));
1077     m_createdItemUrl = KUrl();
1078 }
1079
1080 void DolphinView::showHoverInformation(const KFileItem& item)
1081 {
1082     emit requestItemInfo(item);
1083 }
1084
1085 void DolphinView::clearHoverInformation()
1086 {
1087     emit requestItemInfo(KFileItem());
1088 }
1089
1090 void DolphinView::slotDeleteFileFinished(KJob* job)
1091 {
1092     if (job->error() == 0) {
1093         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1094     } else if (job->error() != KIO::ERR_USER_CANCELED) {
1095         emit errorMessage(job->errorString());
1096     }
1097 }
1098
1099 void DolphinView::slotDirListerCompleted()
1100 {
1101     if (!m_expanderActive) {
1102         slotLoadingCompleted();
1103     }
1104
1105     if (!m_newFileNames.isEmpty()) {
1106         // select all newly added items created by a paste operation or
1107         // a drag & drop operation, and clear the previous selection
1108         m_viewAccessor.itemView()->clearSelection();
1109         const int rowCount = m_viewAccessor.proxyModel()->rowCount();
1110         QItemSelection selection;
1111         for (int row = 0; row < rowCount; ++row) {
1112             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->index(row, 0);
1113             const QModelIndex dirIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
1114             const KUrl url = m_viewAccessor.dirModel()->itemForIndex(dirIndex).url();
1115             if (m_newFileNames.contains(url.fileName())) {
1116                 selection.merge(QItemSelection(proxyIndex, proxyIndex), QItemSelectionModel::Select);
1117             }
1118         }
1119         m_viewAccessor.itemView()->selectionModel()->select(selection, QItemSelectionModel::Select);
1120
1121         m_newFileNames.clear();
1122     }
1123 }
1124
1125 void DolphinView::slotLoadingCompleted()
1126 {
1127     m_expanderActive = false;
1128
1129     if (!m_activeItemUrl.isEmpty()) {
1130         // assure that the current item remains visible
1131         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_activeItemUrl);
1132         if (dirIndex.isValid()) {
1133             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1134             QAbstractItemView* view = m_viewAccessor.itemView();
1135             const bool clearSelection = !hasSelection();
1136             view->setCurrentIndex(proxyIndex);
1137             if (clearSelection) {
1138                 view->clearSelection();
1139             }
1140             m_activeItemUrl.clear();
1141         }
1142     }
1143
1144     if (!m_selectedItems.isEmpty()) {
1145         const KUrl& baseUrl = url();
1146         KUrl url;
1147         QItemSelection newSelection;
1148         foreach(const KFileItem& item, m_selectedItems) {
1149             url = item.url().upUrl();
1150             if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
1151                 QModelIndex index = m_viewAccessor.proxyModel()->mapFromSource(m_viewAccessor.dirModel()->indexForItem(item));
1152                 newSelection.select(index, index);
1153             }
1154         }
1155         m_viewAccessor.itemView()->selectionModel()->select(newSelection,
1156                                                             QItemSelectionModel::ClearAndSelect
1157                                                             | QItemSelectionModel::Current);
1158         m_selectedItems.clear();
1159     }
1160
1161     // Restore the contents position. This has to be done using a Qt::QueuedConnection
1162     // because the view might not be in its final state yet.
1163     QMetaObject::invokeMethod(this, "restoreContentsPosition", Qt::QueuedConnection);
1164 }
1165
1166 void DolphinView::slotRefreshItems()
1167 {
1168     if (m_assureVisibleCurrentIndex) {
1169         m_assureVisibleCurrentIndex = false;
1170         m_viewAccessor.itemView()->scrollTo(m_viewAccessor.itemView()->currentIndex());
1171     }
1172 }
1173
1174 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1175 {
1176     if (!url.isValid()) {
1177         const QString location(url.pathOrUrl());
1178         if (location.isEmpty()) {
1179             emit errorMessage(i18nc("@info:status", "The location is empty."));
1180         } else {
1181             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1182         }
1183         return;
1184     }
1185
1186     KDirLister* dirLister = m_viewAccessor.dirLister();
1187     dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
1188 }
1189
1190 void DolphinView::applyViewProperties()
1191 {
1192     const ViewProperties props(rootUrl());
1193
1194     const Mode mode = props.viewMode();
1195     if (m_mode != mode) {
1196         const int oldZoomLevel = m_viewModeController->zoomLevel();
1197
1198         m_mode = mode;
1199         createView();
1200         emit modeChanged();
1201
1202         updateZoomLevel(oldZoomLevel);
1203     }
1204     if (m_viewAccessor.itemView() == 0) {
1205         createView();
1206     }
1207     Q_ASSERT(m_viewAccessor.itemView() != 0);
1208     Q_ASSERT(m_viewAccessor.itemDelegate() != 0);
1209
1210     const bool showHiddenFiles = props.showHiddenFiles();
1211     if (showHiddenFiles != m_viewAccessor.dirLister()->showingDotFiles()) {
1212         m_viewAccessor.dirLister()->setShowingDotFiles(showHiddenFiles);
1213         emit showHiddenFilesChanged();
1214     }
1215
1216     m_storedCategorizedSorting = props.categorizedSorting();
1217     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1218     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
1219         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
1220         emit categorizedSortingChanged();
1221     }
1222
1223     const DolphinView::Sorting sorting = props.sorting();
1224     if (sorting != m_viewAccessor.proxyModel()->sorting()) {
1225         m_viewAccessor.proxyModel()->setSorting(sorting);
1226         emit sortingChanged(sorting);
1227     }
1228
1229     const Qt::SortOrder sortOrder = props.sortOrder();
1230     if (sortOrder != m_viewAccessor.proxyModel()->sortOrder()) {
1231         m_viewAccessor.proxyModel()->setSortOrder(sortOrder);
1232         emit sortOrderChanged(sortOrder);
1233     }
1234
1235     const bool sortFoldersFirst = props.sortFoldersFirst();
1236     if (sortFoldersFirst != m_viewAccessor.proxyModel()->sortFoldersFirst()) {
1237         m_viewAccessor.proxyModel()->setSortFoldersFirst(sortFoldersFirst);
1238         emit sortFoldersFirstChanged(sortFoldersFirst);
1239     }
1240
1241     KFileItemDelegate::InformationList info = props.additionalInfo();
1242     if (info != m_viewAccessor.itemDelegate()->showInformation()) {
1243         m_viewAccessor.itemDelegate()->setShowInformation(info);
1244         emit additionalInfoChanged();
1245     }
1246
1247     const bool showPreview = props.showPreview();
1248     if (showPreview != m_showPreview) {
1249         m_showPreview = showPreview;
1250         const int oldZoomLevel = m_viewModeController->zoomLevel();
1251         emit showPreviewChanged();
1252
1253         // Enabling or disabling the preview might change the icon size of the view.
1254         // As the view does not emit a signal when the icon size has been changed,
1255         // the used zoom level of the controller must be adjusted manually:
1256         updateZoomLevel(oldZoomLevel);
1257     }
1258 }
1259
1260 void DolphinView::createView()
1261 {
1262     QAbstractItemView* view = m_viewAccessor.itemView();
1263     if ((view != 0) && (view->selectionModel() != 0)) {
1264         disconnect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
1265                    this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
1266     }
1267
1268     deleteView();
1269
1270     Q_ASSERT(m_viewAccessor.itemView() == 0);
1271     m_viewAccessor.createView(this, m_dolphinViewController, m_viewModeController, m_mode);
1272
1273     view = m_viewAccessor.itemView();
1274     Q_ASSERT(view != 0);
1275     view->installEventFilter(this);
1276     view->viewport()->installEventFilter(this);
1277
1278     m_dolphinViewController->setItemView(view);
1279
1280     const int zoomLevel = ZoomLevelInfo::zoomLevelForIconSize(view->iconSize());
1281     m_viewModeController->setZoomLevel(zoomLevel);
1282
1283     connect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
1284             this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
1285
1286     setFocusProxy(m_viewAccessor.layoutTarget());
1287     m_topLayout->insertWidget(1, m_viewAccessor.layoutTarget());
1288 }
1289
1290 void DolphinView::deleteView()
1291 {
1292     QAbstractItemView* view = m_viewAccessor.itemView();
1293     if (view != 0) {
1294         // It's important to set the keyboard focus to the parent
1295         // before deleting the view: Otherwise when having a split
1296         // view the other view will get the focus and will request
1297         // an activation (see DolphinView::eventFilter()).
1298         setFocusProxy(0);
1299         setFocus();
1300
1301         m_topLayout->removeWidget(view);
1302         view->close();
1303
1304         // disconnect all signal/slots
1305         disconnect(view);
1306         m_viewModeController->disconnect(view);
1307         view->disconnect();
1308
1309         m_viewAccessor.deleteView();
1310     }
1311 }
1312
1313 void DolphinView::pasteToUrl(const KUrl& url)
1314 {
1315     addNewFileNames(QApplication::clipboard()->mimeData());
1316     KonqOperations::doPaste(this, url);
1317 }
1318
1319 void DolphinView::updateZoomLevel(int oldZoomLevel)
1320 {
1321     const int newZoomLevel = ZoomLevelInfo::zoomLevelForIconSize(m_viewAccessor.itemView()->iconSize());
1322     if (oldZoomLevel != newZoomLevel) {
1323         m_viewModeController->setZoomLevel(newZoomLevel);
1324         emit zoomLevelChanged(newZoomLevel);
1325     }
1326 }
1327
1328 KUrl::List DolphinView::simplifiedSelectedUrls() const
1329 {
1330     KUrl::List list = selectedUrls();
1331     if (itemsExpandable() ) {
1332         list = KDirModel::simplifiedUrlList(list);
1333     }
1334     return list;
1335 }
1336
1337 QMimeData* DolphinView::selectionMimeData() const
1338 {
1339     const QAbstractItemView* view = m_viewAccessor.itemView();
1340     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
1341     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
1342     return m_viewAccessor.dirModel()->mimeData(selection.indexes());
1343 }
1344
1345 void DolphinView::addNewFileNames(const QMimeData* mimeData)
1346 {
1347     const KUrl::List urls = KUrl::List::fromMimeData(mimeData);
1348     foreach (const KUrl& url, urls) {
1349         m_newFileNames.insert(url.fileName());
1350     }
1351 }
1352
1353 DolphinView::ViewAccessor::ViewAccessor(DolphinSortFilterProxyModel* proxyModel) :
1354     m_iconsView(0),
1355     m_detailsView(0),
1356     m_columnsContainer(0),
1357     m_proxyModel(proxyModel),
1358     m_dragSource(0)
1359 {
1360 }
1361
1362 DolphinView::ViewAccessor::~ViewAccessor()
1363 {
1364     delete m_dragSource;
1365     m_dragSource = 0;
1366 }
1367
1368 void DolphinView::ViewAccessor::createView(QWidget* parent,
1369                                            DolphinViewController* dolphinViewController,
1370                                            const ViewModeController* viewModeController,
1371                                            Mode mode)
1372 {
1373     Q_ASSERT(itemView() == 0);
1374
1375     switch (mode) {
1376     case IconsView:
1377         m_iconsView = new DolphinIconsView(parent,
1378                                            dolphinViewController,
1379                                            viewModeController,
1380                                            m_proxyModel);
1381         break;
1382
1383     case DetailsView:
1384         m_detailsView = new DolphinDetailsView(parent,
1385                                                dolphinViewController,
1386                                                viewModeController,
1387                                                m_proxyModel);
1388         break;
1389
1390     case ColumnView:
1391         m_columnsContainer = new DolphinColumnViewContainer(parent,
1392                                                             dolphinViewController,
1393                                                             viewModeController);
1394         break;
1395
1396     default:
1397         Q_ASSERT(false);
1398     }
1399 }
1400
1401 void DolphinView::ViewAccessor::deleteView()
1402 {
1403     QAbstractItemView* view = itemView();
1404     if (view != 0) {
1405         if (DragAndDropHelper::instance().isDragSource(view)) {
1406             // The view is a drag source (the feature "Open folders
1407             // during drag operations" is used). Deleting the view
1408             // during an ongoing drag operation is not allowed, so
1409             // this will postponed.
1410             if (m_dragSource != 0) {
1411                 // the old stored view is obviously not the drag source anymore
1412                 m_dragSource->deleteLater();
1413                 m_dragSource = 0;
1414             }
1415             view->hide();
1416             m_dragSource = view;
1417         } else {
1418             view->deleteLater();
1419         }
1420     }
1421
1422     m_iconsView = 0;
1423     m_detailsView = 0;
1424
1425     if (m_columnsContainer != 0) {
1426         m_columnsContainer->deleteLater();
1427     }
1428     m_columnsContainer = 0;
1429 }
1430
1431
1432 void DolphinView::ViewAccessor::prepareUrlChange(const KUrl& url)
1433 {
1434     if (m_columnsContainer != 0) {
1435         m_columnsContainer->showColumn(url);
1436     }
1437 }
1438
1439 QAbstractItemView* DolphinView::ViewAccessor::itemView() const
1440 {
1441     if (m_iconsView != 0) {
1442         return m_iconsView;
1443     }
1444
1445     if (m_detailsView != 0) {
1446         return m_detailsView;
1447     }
1448
1449     if (m_columnsContainer != 0) {
1450         return m_columnsContainer->activeColumn();
1451     }
1452
1453     return 0;
1454 }
1455
1456 KFileItemDelegate* DolphinView::ViewAccessor::itemDelegate() const
1457 {
1458     return static_cast<KFileItemDelegate*>(itemView()->itemDelegate());
1459 }
1460
1461 QWidget* DolphinView::ViewAccessor::layoutTarget() const
1462 {
1463     if (m_columnsContainer != 0) {
1464         return m_columnsContainer;
1465     }
1466     return itemView();
1467 }
1468
1469 KUrl DolphinView::ViewAccessor::rootUrl() const
1470 {
1471     return (m_columnsContainer != 0) ? m_columnsContainer->rootUrl() : KUrl();
1472 }
1473
1474 bool DolphinView::ViewAccessor::supportsCategorizedSorting() const
1475 {
1476     return m_iconsView != 0;
1477 }
1478
1479 bool DolphinView::ViewAccessor::itemsExpandable() const
1480 {
1481     return (m_detailsView != 0) && m_detailsView->itemsExpandable();
1482 }
1483
1484
1485 QSet<KUrl> DolphinView::ViewAccessor::expandedUrls() const
1486 {
1487     if (m_detailsView != 0) {
1488         return m_detailsView->expandedUrls();
1489     }
1490
1491     return QSet<KUrl>();
1492 }
1493
1494 const DolphinDetailsViewExpander* DolphinView::ViewAccessor::setExpandedUrls(const QSet<KUrl>& urlsToExpand)
1495 {
1496     if ((m_detailsView != 0) && m_detailsView->itemsExpandable() && !urlsToExpand.isEmpty()) {
1497         // Check if another expander is already active and stop it if necessary.
1498         if(!m_detailsViewExpander.isNull()) {
1499             m_detailsViewExpander->stop();
1500         }
1501
1502         m_detailsViewExpander = new DolphinDetailsViewExpander(m_detailsView, urlsToExpand);
1503         return m_detailsViewExpander;
1504     }
1505     else {
1506         return 0;
1507     }
1508 }
1509
1510 bool DolphinView::ViewAccessor::reloadOnAdditionalInfoChange() const
1511 {
1512     // the details view requires no reloading of the directory, as it maps
1513     // the file item delegate info to its columns internally
1514     return m_detailsView != 0;
1515 }
1516
1517 DolphinModel* DolphinView::ViewAccessor::dirModel() const
1518 {
1519     return static_cast<DolphinModel*>(proxyModel()->sourceModel());
1520 }
1521
1522 DolphinSortFilterProxyModel* DolphinView::ViewAccessor::proxyModel() const
1523 {
1524     if (m_columnsContainer != 0) {
1525         return static_cast<DolphinSortFilterProxyModel*>(m_columnsContainer->activeColumn()->model());
1526     }
1527     return m_proxyModel;
1528 }
1529
1530 KDirLister* DolphinView::ViewAccessor::dirLister() const
1531 {
1532     return dirModel()->dirLister();
1533 }
1534
1535 void DolphinView::slotRedirection(const KUrl& oldUrl, const KUrl& newUrl)
1536 {
1537     if (oldUrl.equals(url(), KUrl::CompareWithoutTrailingSlash)) {
1538         emit redirection(oldUrl, newUrl);
1539         m_viewModeController->redirectToUrl(newUrl); // #186947
1540     }
1541 }
1542
1543 void DolphinView::restoreContentsPosition()
1544 {
1545     if (!m_restoredContentsPosition.isNull()) {
1546         const int x = m_restoredContentsPosition.x();
1547         const int y = m_restoredContentsPosition.y();
1548         m_restoredContentsPosition = QPoint();
1549
1550         QAbstractItemView* view = m_viewAccessor.itemView();
1551         Q_ASSERT(view != 0);
1552         view->horizontalScrollBar()->setValue(x);
1553         view->verticalScrollBar()->setValue(y);
1554     }
1555 }
1556
1557 #include "dolphinview.moc"