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 "dolphinviewcontroller.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 "viewmodecontroller.h"
  66 #include "viewproperties.h"
  67 #include "zoomlevelinfo.h"
  68 #include "dolphindetailsviewexpander.h"
  69
  70 /**
  71  * Helper function for sorting items with qSort() in
  72  * DolphinView::renameSelectedItems().
  73  */
  74 bool lessThan(const KFileItem& item1, const KFileItem& item2)
  75 {
  76     return KStringHandler::naturalCompare(item1.name(), item2.name()) < 0;
  77 }
  78
  79 DolphinView::DolphinView(QWidget* parent,
  80                          const KUrl& url,
  81                          DolphinSortFilterProxyModel* proxyModel) :
  82     QWidget(parent),
  83     m_active(true),
  84     m_showPreview(false),
  85     m_storedCategorizedSorting(false),
  86     m_tabsForFiles(false),
  87     m_isContextMenuOpen(false),
  88     m_ignoreViewProperties(false),
  89     m_assureVisibleCurrentIndex(false),
  90     m_mode(DolphinView::IconsView),
  91     m_topLayout(0),
  92     m_dolphinViewController(0),
  93     m_viewModeController(0),
  94     m_viewAccessor(proxyModel),
  95     m_selectionModel(0),
  96     m_selectionChangedTimer(0),
  97     m_rootUrl(),
  98     m_activeItemUrl(),
  99     m_restoredContentsPosition(),
 100     m_createdItemUrl(),
 101     m_selectedItems(),
 102     m_newFileNames()
 103 {
 104     m_topLayout = new QVBoxLayout(this);
 105     m_topLayout->setSpacing(0);
 106     m_topLayout->setMargin(0);
 107
 108     m_dolphinViewController = new DolphinViewController(this);
 109
 110     m_viewModeController = new ViewModeController(this);
 111     m_viewModeController->setUrl(url);
 112
 113     connect(m_viewModeController, SIGNAL(urlChanged(const KUrl&)),
 114             this, SIGNAL(urlChanged(const KUrl&)));
 115
 116     connect(m_dolphinViewController, SIGNAL(requestContextMenu(const QPoint&, const QList<QAction*>&)),
 117             this, SLOT(openContextMenu(const QPoint&, const QList<QAction*>&)));
 118     connect(m_dolphinViewController, SIGNAL(urlsDropped(const KFileItem&, const KUrl&, QDropEvent*)),
 119             this, SLOT(dropUrls(const KFileItem&, const KUrl&, QDropEvent*)));
 120     connect(m_dolphinViewController, SIGNAL(sortingChanged(DolphinView::Sorting)),
 121             this, SLOT(updateSorting(DolphinView::Sorting)));
 122     connect(m_dolphinViewController, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 123             this, SLOT(updateSortOrder(Qt::SortOrder)));
 124     connect(m_dolphinViewController, SIGNAL(sortFoldersFirstChanged(bool)),
 125             this, SLOT(updateSortFoldersFirst(bool)));
 126     connect(m_dolphinViewController, SIGNAL(additionalInfoChanged(const KFileItemDelegate::InformationList&)),
 127             this, SLOT(updateAdditionalInfo(const KFileItemDelegate::InformationList&)));
 128     connect(m_dolphinViewController, SIGNAL(itemTriggered(const KFileItem&)),
 129             this, SLOT(triggerItem(const KFileItem&)));
 130     connect(m_dolphinViewController, SIGNAL(tabRequested(const KUrl&)),
 131             this, SIGNAL(tabRequested(const KUrl&)));
 132     connect(m_dolphinViewController, SIGNAL(activated()),
 133             this, SLOT(activate()));
 134     connect(m_dolphinViewController, SIGNAL(itemEntered(const KFileItem&)),
 135             this, SLOT(showHoverInformation(const KFileItem&)));
 136     connect(m_dolphinViewController, SIGNAL(viewportEntered()),
 137             this, SLOT(clearHoverInformation()));
 138     connect(m_dolphinViewController, SIGNAL(urlChangeRequested(KUrl)),
 139             m_viewModeController, SLOT(setUrl(KUrl)));
 140
 141     KDirLister* dirLister = m_viewAccessor.dirLister();
 142     connect(dirLister, SIGNAL(redirection(KUrl,KUrl)),
 143             this, SLOT(slotRedirection(KUrl,KUrl)));
 144     connect(dirLister, SIGNAL(completed()),
 145             this, SLOT(slotDirListerCompleted()));
 146     connect(dirLister, SIGNAL(refreshItems(const QList<QPair<KFileItem,KFileItem>>&)),
 147             this, SLOT(slotRefreshItems()));
 148
 149     // When a new item has been created by the "Create New..." menu, the item should
 150     // get selected and it must be assured that the item will get visible. As the
 151     // creation is done asynchronously, several signals must be checked:
 152     connect(&DolphinNewMenuObserver::instance(), SIGNAL(itemCreated(const KUrl&)),
 153             this, SLOT(observeCreatedItem(const KUrl&)));
 154
 155     m_selectionChangedTimer = new QTimer(this);
 156     m_selectionChangedTimer->setSingleShot(true);
 157     m_selectionChangedTimer->setInterval(300);
 158     connect(m_selectionChangedTimer, SIGNAL(timeout()),
 159             this, SLOT(emitSelectionChangedSignal()));
 160
 161     applyViewProperties();
 162     m_topLayout->addWidget(m_viewAccessor.layoutTarget());
 163 }
 164
 165 DolphinView::~DolphinView()
 166 {
 167 }
 168
 169 KUrl DolphinView::url() const
 170 {
 171     return m_viewModeController->url();
 172 }
 173
 174 KUrl DolphinView::rootUrl() const
 175 {
 176     const KUrl viewUrl = url();
 177     const KUrl root = m_viewAccessor.rootUrl();
 178     if (root.isEmpty() || !root.isParentOf(viewUrl)) {
 179         return viewUrl;
 180     }
 181     return root;
 182 }
 183
 184 void DolphinView::setActive(bool active)
 185 {
 186     if (active == m_active) {
 187         return;
 188     }
 189
 190     m_active = active;
 191
 192     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 193     if (active) {
 194         emitSelectionChangedSignal();
 195     } else {
 196         color.setAlpha(150);
 197     }
 198
 199     QWidget* viewport = m_viewAccessor.itemView()->viewport();
 200     QPalette palette;
 201     palette.setColor(viewport->backgroundRole(), color);
 202     viewport->setPalette(palette);
 203
 204     update();
 205
 206     if (active) {
 207         m_viewAccessor.itemView()->setFocus();
 208         emit activated();
 209     }
 210
 211     m_viewModeController->indicateActivationChange(active);
 212 }
 213
 214 bool DolphinView::isActive() const
 215 {
 216     return m_active;
 217 }
 218
 219 void DolphinView::setMode(Mode mode)
 220 {
 221     if (mode == m_mode) {
 222         return; // the wished mode is already set
 223     }
 224
 225     const int oldZoomLevel = m_viewModeController->zoomLevel();
 226     m_mode = mode;
 227
 228     // remember the currently selected items, so that they will
 229     // be restored after reloading the directory
 230     m_selectedItems = selectedItems();
 231
 232     deleteView();
 233
 234     const KUrl viewPropsUrl = rootUrl();
 235     ViewProperties props(viewPropsUrl);
 236     props.setViewMode(m_mode);
 237     createView();
 238
 239     // the file item delegate has been recreated, apply the current
 240     // additional information manually
 241     const KFileItemDelegate::InformationList infoList = props.additionalInfo();
 242     m_viewAccessor.itemDelegate()->setShowInformation(infoList);
 243     emit additionalInfoChanged();
 244
 245     // Not all view modes support categorized sorting. Adjust the sorting model
 246     // if changing the view mode results in a change of the categorized sorting
 247     // capabilities.
 248     m_storedCategorizedSorting = props.categorizedSorting();
 249     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 250     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
 251         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 252         emit categorizedSortingChanged();
 253     }
 254
 255     emit modeChanged();
 256
 257     updateZoomLevel(oldZoomLevel);
 258     loadDirectory(viewPropsUrl);
 259 }
 260
 261 DolphinView::Mode DolphinView::mode() const
 262 {
 263     return m_mode;
 264 }
 265
 266 bool DolphinView::showPreview() const
 267 {
 268     return m_showPreview;
 269 }
 270
 271 bool DolphinView::showHiddenFiles() const
 272 {
 273     return m_viewAccessor.dirLister()->showingDotFiles();
 274 }
 275
 276 bool DolphinView::categorizedSorting() const
 277 {
 278     // If all view modes would support categorized sorting, returning
 279     // m_viewAccessor.proxyModel()->isCategorizedModel() would be the way to go. As
 280     // currently only the icons view supports caterized sorting, we remember
 281     // the stored view properties state in m_storedCategorizedSorting and
 282     // return this state. The application takes care to disable the corresponding
 283     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 284     // that this setting is not applied to the current view mode.
 285     return m_storedCategorizedSorting;
 286 }
 287
 288 bool DolphinView::supportsCategorizedSorting() const
 289 {
 290     return m_viewAccessor.supportsCategorizedSorting();
 291 }
 292
 293 bool DolphinView::hasSelection() const
 294 {
 295     const QAbstractItemView* view = m_viewAccessor.itemView();
 296     return (view != 0) && view->selectionModel()->hasSelection();
 297 }
 298
 299 void DolphinView::markUrlsAsSelected(const QList<KUrl>& urls)
 300 {
 301     foreach (const KUrl& url, urls) {
 302         KFileItem item(KFileItem::Unknown, KFileItem::Unknown, url);
 303         m_selectedItems.append(item);
 304     }
 305 }
 306
 307 KFileItemList DolphinView::selectedItems() const
 308 {
 309     KFileItemList itemList;
 310     const QAbstractItemView* view = m_viewAccessor.itemView();
 311     if (view == 0) {
 312         return itemList;
 313     }
 314
 315     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
 316
 317     const QModelIndexList indexList = selection.indexes();
 318     foreach (const QModelIndex &index, indexList) {
 319         KFileItem item = m_viewAccessor.dirModel()->itemForIndex(index);
 320         if (!item.isNull()) {
 321             itemList.append(item);
 322         }
 323     }
 324
 325     return itemList;
 326 }
 327
 328 KUrl::List DolphinView::selectedUrls() const
 329 {
 330     KUrl::List urls;
 331     const KFileItemList list = selectedItems();
 332     foreach (const KFileItem &item, list) {
 333         urls.append(item.url());
 334     }
 335     return urls;
 336 }
 337
 338 int DolphinView::selectedItemsCount() const
 339 {
 340     const QAbstractItemView* view = m_viewAccessor.itemView();
 341     if (view == 0) {
 342         return 0;
 343     }
 344
 345     return view->selectionModel()->selectedIndexes().count();
 346 }
 347
 348 QItemSelectionModel* DolphinView::selectionModel() const
 349 {
 350     return m_viewAccessor.itemView()->selectionModel();
 351 }
 352
 353 void DolphinView::setZoomLevel(int level)
 354 {
 355     if (level < ZoomLevelInfo::minimumLevel()) {
 356         level = ZoomLevelInfo::minimumLevel();
 357     } else if (level > ZoomLevelInfo::maximumLevel()) {
 358         level = ZoomLevelInfo::maximumLevel();
 359     }
 360
 361     if (level != zoomLevel()) {
 362         m_viewModeController->setZoomLevel(level);
 363         emit zoomLevelChanged(level);
 364     }
 365 }
 366
 367 int DolphinView::zoomLevel() const
 368 {
 369     return m_viewModeController->zoomLevel();
 370 }
 371
 372 void DolphinView::setSorting(Sorting sorting)
 373 {
 374     if (sorting != this->sorting()) {
 375         updateSorting(sorting);
 376     }
 377 }
 378
 379 DolphinView::Sorting DolphinView::sorting() const
 380 {
 381     return m_viewAccessor.proxyModel()->sorting();
 382 }
 383
 384 void DolphinView::setSortOrder(Qt::SortOrder order)
 385 {
 386     if (sortOrder() != order) {
 387         updateSortOrder(order);
 388     }
 389 }
 390
 391 Qt::SortOrder DolphinView::sortOrder() const
 392 {
 393     return m_viewAccessor.proxyModel()->sortOrder();
 394 }
 395
 396 void DolphinView::setSortFoldersFirst(bool foldersFirst)
 397 {
 398     if (sortFoldersFirst() != foldersFirst) {
 399         updateSortFoldersFirst(foldersFirst);
 400     }
 401 }
 402
 403 bool DolphinView::sortFoldersFirst() const
 404 {
 405     return m_viewAccessor.proxyModel()->sortFoldersFirst();
 406 }
 407
 408 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 409 {
 410     const KUrl viewPropsUrl = rootUrl();
 411     ViewProperties props(viewPropsUrl);
 412     props.setAdditionalInfo(info);
 413     m_viewAccessor.itemDelegate()->setShowInformation(info);
 414
 415     emit additionalInfoChanged();
 416
 417     if (m_viewAccessor.reloadOnAdditionalInfoChange()) {
 418         loadDirectory(viewPropsUrl);
 419     }
 420 }
 421
 422 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 423 {
 424     return m_viewAccessor.itemDelegate()->showInformation();
 425 }
 426
 427 void DolphinView::reload()
 428 {
 429     QByteArray viewState;
 430     QDataStream saveStream(&viewState, QIODevice::WriteOnly);
 431     saveState(saveStream);
 432     m_selectedItems= selectedItems();
 433
 434     setUrl(url());
 435     loadDirectory(url(), true);
 436
 437     QDataStream restoreStream(viewState);
 438     restoreState(restoreStream);
 439 }
 440
 441 void DolphinView::refresh()
 442 {
 443     m_ignoreViewProperties = false;
 444
 445     const bool oldActivationState = m_active;
 446     const int oldZoomLevel = m_viewModeController->zoomLevel();
 447     m_active = true;
 448
 449     createView();
 450     applyViewProperties();
 451     reload();
 452
 453     setActive(oldActivationState);
 454     updateZoomLevel(oldZoomLevel);
 455 }
 456
 457 void DolphinView::setNameFilter(const QString& nameFilter)
 458 {
 459     m_viewModeController->setNameFilter(nameFilter);
 460 }
 461
 462 void DolphinView::calculateItemCount(int& fileCount,
 463                                      int& folderCount,
 464                                      KIO::filesize_t& totalFileSize) const
 465 {
 466     foreach (const KFileItem& item, m_viewAccessor.dirLister()->items()) {
 467         if (item.isDir()) {
 468             ++folderCount;
 469         } else {
 470             ++fileCount;
 471             totalFileSize += item.size();
 472         }
 473     }
 474 }
 475
 476 QString DolphinView::statusBarText() const
 477 {
 478     QString text;
 479     int folderCount = 0;
 480     int fileCount = 0;
 481     KIO::filesize_t totalFileSize = 0;
 482
 483     if (hasSelection()) {
 484         // give a summary of the status of the selected files
 485         const KFileItemList list = selectedItems();
 486         if (list.isEmpty()) {
 487             // when an item is triggered, it is temporary selected but selectedItems()
 488             // will return an empty list
 489             return text;
 490         }
 491
 492         KFileItemList::const_iterator it = list.begin();
 493         const KFileItemList::const_iterator end = list.end();
 494         while (it != end) {
 495             const KFileItem& item = *it;
 496             if (item.isDir()) {
 497                 ++folderCount;
 498             } else {
 499                 ++fileCount;
 500                 totalFileSize += item.size();
 501             }
 502             ++it;
 503         }
 504
 505         if (folderCount + fileCount == 1) {
 506             // if only one item is selected, show the filename
 507             const QString name = list.first().text();
 508             text = (folderCount == 1) ? i18nc("@info:status", "<filename>%1</filename> selected", name) :
 509                                         i18nc("@info:status", "<filename>%1</filename> selected (%2)",
 510                                               name, KIO::convertSize(totalFileSize));
 511         } else {
 512             // at least 2 items are selected
 513             const QString foldersText = i18ncp("@info:status", "1 Folder selected", "%1 Folders selected", folderCount);
 514             const QString filesText = i18ncp("@info:status", "1 File selected", "%1 Files selected", fileCount);
 515             if ((folderCount > 0) && (fileCount > 0)) {
 516                 text = i18nc("@info:status folders, files (size)", "%1, %2 (%3)",
 517                              foldersText, filesText, KIO::convertSize(totalFileSize));
 518             } else if (fileCount > 0) {
 519                 text = i18nc("@info:status files (size)", "%1 (%2)", filesText, KIO::convertSize(totalFileSize));
 520             } else {
 521                 Q_ASSERT(folderCount > 0);
 522                 text = foldersText;
 523             }
 524         }
 525     } else {
 526         calculateItemCount(fileCount, folderCount, totalFileSize);
 527         text = KIO::itemsSummaryString(fileCount + folderCount,
 528                                        fileCount, folderCount,
 529                                        totalFileSize, true);
 530     }
 531
 532     return text;
 533 }
 534
 535 QList<QAction*> DolphinView::versionControlActions(const KFileItemList& items) const
 536 {
 537     return m_dolphinViewController->versionControlActions(items);
 538 }
 539
 540 void DolphinView::setUrl(const KUrl& url)
 541 {
 542     if (m_viewModeController->url() != url) {
 543         m_newFileNames.clear();
 544
 545         m_viewModeController->setUrl(url); // emits urlChanged, which we forward
 546         m_viewAccessor.prepareUrlChange(url);
 547         applyViewProperties();
 548         loadDirectory(url);
 549
 550         // When changing the URL there is no need to keep the version
 551         // data of the previous URL.
 552         m_viewAccessor.dirModel()->clearVersionData();
 553
 554         emit startedPathLoading(url);
 555     }
 556
 557     // the selection model might have changed in the case of a column view
 558     QItemSelectionModel* selectionModel = m_viewAccessor.itemView()->selectionModel();
 559     if (m_selectionModel != selectionModel) {
 560         disconnect(m_selectionModel, SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
 561                    this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
 562         m_selectionModel = selectionModel;
 563         connect(m_selectionModel, SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
 564                 this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
 565     }
 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 bool enable = (m_mode == DolphinView::DetailsView) ||
 975                         (m_mode == DolphinView::IconsView);
 976
 977     QAction* showSizeInfo = collection->action("show_size_info");
 978     QAction* showDateInfo = collection->action("show_date_info");
 979     QAction* showPermissionsInfo = collection->action("show_permissions_info");
 980     QAction* showOwnerInfo = collection->action("show_owner_info");
 981     QAction* showGroupInfo = collection->action("show_group_info");
 982     QAction* showMimeInfo = collection->action("show_mime_info");
 983     QAction* showPathOrUrlInfo = collection->action("show_path_or_url_info");
 984
 985     showSizeInfo->setChecked(false);
 986     showDateInfo->setChecked(false);
 987     showPermissionsInfo->setChecked(false);
 988     showOwnerInfo->setChecked(false);
 989     showGroupInfo->setChecked(false);
 990     showMimeInfo->setChecked(false);
 991     showPathOrUrlInfo->setChecked(false);
 992
 993     showSizeInfo->setEnabled(enable);
 994     showDateInfo->setEnabled(enable);
 995     showPermissionsInfo->setEnabled(enable);
 996     showOwnerInfo->setEnabled(enable);
 997     showGroupInfo->setEnabled(enable);
 998     showMimeInfo->setEnabled(enable);
 999     showPathOrUrlInfo->setEnabled(enable);
1000
1001     foreach (KFileItemDelegate::Information info, m_viewAccessor.itemDelegate()->showInformation()) {
1002         switch (info) {
1003         case KFileItemDelegate::Size:
1004             showSizeInfo->setChecked(true);
1005             break;
1006         case KFileItemDelegate::ModificationTime:
1007             showDateInfo->setChecked(true);
1008             break;
1009         case KFileItemDelegate::Permissions:
1010             showPermissionsInfo->setChecked(true);
1011             break;
1012         case KFileItemDelegate::Owner:
1013             showOwnerInfo->setChecked(true);
1014             break;
1015         case KFileItemDelegate::OwnerAndGroup:
1016             showGroupInfo->setChecked(true);
1017             break;
1018         case KFileItemDelegate::FriendlyMimeType:
1019             showMimeInfo->setChecked(true);
1020             break;
1021         case KFileItemDelegate::LocalPathOrUrl:
1022             showPathOrUrlInfo->setChecked(true);
1023             break;
1024         default:
1025             break;
1026         }
1027     }
1028 }
1029
1030 QPair<bool, QString> DolphinView::pasteInfo() const
1031 {
1032     return KonqOperations::pasteInfo(url());
1033 }
1034
1035 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
1036 {
1037     m_tabsForFiles = tabsForFiles;
1038 }
1039
1040 bool DolphinView::isTabsForFilesEnabled() const
1041 {
1042     return m_tabsForFiles;
1043 }
1044
1045 bool DolphinView::itemsExpandable() const
1046 {
1047     return m_viewAccessor.itemsExpandable();
1048 }
1049
1050 void DolphinView::restoreState(QDataStream& stream)
1051 {
1052     // current item
1053     stream >> m_activeItemUrl;
1054
1055     // view position
1056     stream >> m_restoredContentsPosition;
1057
1058     // expanded folders (only relevant for the details view - will be ignored by the view in other view modes)
1059     QSet<KUrl> urlsToExpand;
1060     stream >> urlsToExpand;
1061     const DolphinDetailsViewExpander* expander = m_viewAccessor.setExpandedUrls(urlsToExpand);
1062     if (expander != 0) {
1063         m_expanderActive = true;
1064         connect (expander, SIGNAL(completed()), this, SLOT(slotLoadingCompleted()));
1065     }
1066     else {
1067         m_expanderActive = false;
1068     }
1069 }
1070
1071 void DolphinView::saveState(QDataStream& stream)
1072 {
1073     // current item
1074     KFileItem currentItem;
1075     const QAbstractItemView* view = m_viewAccessor.itemView();
1076
1077     if (view != 0) {
1078         const QModelIndex proxyIndex = view->currentIndex();
1079         const QModelIndex dirModelIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
1080         currentItem = m_viewAccessor.dirModel()->itemForIndex(dirModelIndex);
1081     }
1082
1083     KUrl currentUrl;
1084     if (!currentItem.isNull()) {
1085         currentUrl = currentItem.url();
1086     }
1087
1088     stream << currentUrl;
1089
1090     // view position
1091     const int x = view->horizontalScrollBar()->value();
1092     const int y = view->verticalScrollBar()->value();
1093     stream << QPoint(x, y);
1094
1095     // expanded folders (only relevant for the details view - the set will be empty in other view modes)
1096     stream << m_viewAccessor.expandedUrls();
1097 }
1098
1099 void DolphinView::observeCreatedItem(const KUrl& url)
1100 {
1101     m_createdItemUrl = url;
1102     connect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
1103             this, SLOT(selectAndScrollToCreatedItem()));
1104 }
1105
1106 void DolphinView::selectAndScrollToCreatedItem()
1107 {
1108     const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_createdItemUrl);
1109     if (dirIndex.isValid()) {
1110         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1111         m_viewAccessor.itemView()->setCurrentIndex(proxyIndex);
1112     }
1113
1114     disconnect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
1115                this, SLOT(selectAndScrollToCreatedItem()));
1116     m_createdItemUrl = KUrl();
1117 }
1118
1119 void DolphinView::showHoverInformation(const KFileItem& item)
1120 {
1121     emit requestItemInfo(item);
1122 }
1123
1124 void DolphinView::clearHoverInformation()
1125 {
1126     emit requestItemInfo(KFileItem());
1127 }
1128
1129 void DolphinView::slotDeleteFileFinished(KJob* job)
1130 {
1131     if (job->error() == 0) {
1132         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1133     } else if (job->error() != KIO::ERR_USER_CANCELED) {
1134         emit errorMessage(job->errorString());
1135     }
1136 }
1137
1138 void DolphinView::slotDirListerCompleted()
1139 {
1140     if (!m_expanderActive) {
1141         slotLoadingCompleted();
1142     }
1143
1144     if (!m_newFileNames.isEmpty()) {
1145         // select all newly added items created by a paste operation or
1146         // a drag & drop operation
1147         const int rowCount = m_viewAccessor.proxyModel()->rowCount();
1148         QItemSelection selection;
1149         for (int row = 0; row < rowCount; ++row) {
1150             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->index(row, 0);
1151             const QModelIndex dirIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
1152             const KUrl url = m_viewAccessor.dirModel()->itemForIndex(dirIndex).url();
1153             if (m_newFileNames.contains(url.fileName())) {
1154                 selection.merge(QItemSelection(proxyIndex, proxyIndex), QItemSelectionModel::Select);
1155             }
1156         }
1157         m_viewAccessor.itemView()->selectionModel()->select(selection, QItemSelectionModel::Select);
1158
1159         m_newFileNames.clear();
1160     }
1161 }
1162
1163 void DolphinView::slotLoadingCompleted()
1164 {
1165     m_expanderActive = false;
1166
1167     if (!m_activeItemUrl.isEmpty()) {
1168         // assure that the current item remains visible
1169         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_activeItemUrl);
1170         if (dirIndex.isValid()) {
1171             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1172             QAbstractItemView* view = m_viewAccessor.itemView();
1173             const bool clearSelection = !hasSelection();
1174             view->setCurrentIndex(proxyIndex);
1175             if (clearSelection) {
1176                 view->clearSelection();
1177             }
1178             m_activeItemUrl.clear();
1179         }
1180     }
1181
1182     if (!m_selectedItems.isEmpty()) {
1183         const KUrl& baseUrl = url();
1184         KUrl url;
1185         QItemSelection newSelection;
1186         foreach(const KFileItem& item, m_selectedItems) {
1187             url = item.url().upUrl();
1188             if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
1189                 QModelIndex index = m_viewAccessor.proxyModel()->mapFromSource(m_viewAccessor.dirModel()->indexForItem(item));
1190                 newSelection.select(index, index);
1191             }
1192         }
1193         m_viewAccessor.itemView()->selectionModel()->select(newSelection,
1194                                                             QItemSelectionModel::ClearAndSelect
1195                                                             | QItemSelectionModel::Current);
1196         m_selectedItems.clear();
1197     }
1198
1199     // Restore the contents position. This has to be done using a Qt::QueuedConnection
1200     // because the view might not be in its final state yet.
1201     QMetaObject::invokeMethod(this, "restoreContentsPosition", Qt::QueuedConnection);
1202 }
1203
1204 void DolphinView::slotRefreshItems()
1205 {
1206     if (m_assureVisibleCurrentIndex) {
1207         m_assureVisibleCurrentIndex = false;
1208         m_viewAccessor.itemView()->scrollTo(m_viewAccessor.itemView()->currentIndex());
1209     }
1210 }
1211
1212 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1213 {
1214     if (!url.isValid()) {
1215         const QString location(url.pathOrUrl());
1216         if (location.isEmpty()) {
1217             emit errorMessage(i18nc("@info:status", "The location is empty."));
1218         } else {
1219             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1220         }
1221         return;
1222     }
1223
1224     KDirLister* dirLister = m_viewAccessor.dirLister();
1225     dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
1226 }
1227
1228 void DolphinView::applyViewProperties()
1229 {
1230     if (m_ignoreViewProperties) {
1231         return;
1232     }
1233
1234     const ViewProperties props(rootUrl());
1235
1236     const Mode mode = props.viewMode();
1237     if (m_mode != mode) {
1238         const int oldZoomLevel = m_viewModeController->zoomLevel();
1239
1240         m_mode = mode;
1241         createView();
1242         emit modeChanged();
1243
1244         updateZoomLevel(oldZoomLevel);
1245     }
1246     if (m_viewAccessor.itemView() == 0) {
1247         createView();
1248     }
1249     Q_ASSERT(m_viewAccessor.itemView() != 0);
1250     Q_ASSERT(m_viewAccessor.itemDelegate() != 0);
1251
1252     const bool showHiddenFiles = props.showHiddenFiles();
1253     if (showHiddenFiles != m_viewAccessor.dirLister()->showingDotFiles()) {
1254         m_viewAccessor.dirLister()->setShowingDotFiles(showHiddenFiles);
1255         emit showHiddenFilesChanged();
1256     }
1257
1258     m_storedCategorizedSorting = props.categorizedSorting();
1259     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1260     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
1261         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
1262         emit categorizedSortingChanged();
1263     }
1264
1265     const DolphinView::Sorting sorting = props.sorting();
1266     if (sorting != m_viewAccessor.proxyModel()->sorting()) {
1267         m_viewAccessor.proxyModel()->setSorting(sorting);
1268         emit sortingChanged(sorting);
1269     }
1270
1271     const Qt::SortOrder sortOrder = props.sortOrder();
1272     if (sortOrder != m_viewAccessor.proxyModel()->sortOrder()) {
1273         m_viewAccessor.proxyModel()->setSortOrder(sortOrder);
1274         emit sortOrderChanged(sortOrder);
1275     }
1276
1277     const bool sortFoldersFirst = props.sortFoldersFirst();
1278     if (sortFoldersFirst != m_viewAccessor.proxyModel()->sortFoldersFirst()) {
1279         m_viewAccessor.proxyModel()->setSortFoldersFirst(sortFoldersFirst);
1280         emit sortFoldersFirstChanged(sortFoldersFirst);
1281     }
1282
1283     KFileItemDelegate::InformationList info = props.additionalInfo();
1284     if (info != m_viewAccessor.itemDelegate()->showInformation()) {
1285         m_viewAccessor.itemDelegate()->setShowInformation(info);
1286         emit additionalInfoChanged();
1287     }
1288
1289     const bool showPreview = props.showPreview();
1290     if (showPreview != m_showPreview) {
1291         m_showPreview = showPreview;
1292         const int oldZoomLevel = m_viewModeController->zoomLevel();
1293         emit showPreviewChanged();
1294
1295         // Enabling or disabling the preview might change the icon size of the view.
1296         // As the view does not emit a signal when the icon size has been changed,
1297         // the used zoom level of the controller must be adjusted manually:
1298         updateZoomLevel(oldZoomLevel);
1299     }
1300
1301     if (DolphinSettings::instance().generalSettings()->globalViewProps()) {
1302         // During the lifetime of a DolphinView instance the global view properties
1303         // should not be changed. This allows e. g. to split a view and use different
1304         // view properties for each view.
1305         m_ignoreViewProperties = true;
1306     }
1307 }
1308
1309 void DolphinView::createView()
1310 {
1311     deleteView();
1312
1313     Q_ASSERT(m_viewAccessor.itemView() == 0);
1314     m_viewAccessor.createView(this, m_dolphinViewController, m_viewModeController, m_mode);
1315
1316     QAbstractItemView* view = m_viewAccessor.itemView();
1317     Q_ASSERT(view != 0);
1318     view->installEventFilter(this);
1319     view->viewport()->installEventFilter(this);
1320
1321     m_dolphinViewController->setItemView(view);
1322
1323     // When changing the view mode, the selection is lost due to reinstantiating
1324     // a new item view with a custom selection model. Pass the ownership of the
1325     // selection model to DolphinView, so that it can be shared by all item views.
1326     if (m_selectionModel != 0) {
1327         view->setSelectionModel(m_selectionModel);
1328     } else {
1329         m_selectionModel = view->selectionModel();
1330     }
1331     m_selectionModel->setParent(this);
1332     connect(m_selectionModel, SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
1333             this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
1334
1335     setFocusProxy(m_viewAccessor.layoutTarget());
1336     m_topLayout->insertWidget(1, m_viewAccessor.layoutTarget());
1337 }
1338
1339 void DolphinView::deleteView()
1340 {
1341     QAbstractItemView* view = m_viewAccessor.itemView();
1342     if (view != 0) {
1343         // It's important to set the keyboard focus to the parent
1344         // before deleting the view: Otherwise when having a split
1345         // view the other view will get the focus and will request
1346         // an activation (see DolphinView::eventFilter()).
1347         setFocusProxy(0);
1348         setFocus();
1349
1350         m_topLayout->removeWidget(view);
1351         view->close();
1352
1353         // disconnect all signal/slots
1354         disconnect(view);
1355         m_viewModeController->disconnect(view);
1356         view->disconnect();
1357
1358         m_viewAccessor.deleteView();
1359     }
1360 }
1361
1362 void DolphinView::pasteToUrl(const KUrl& url)
1363 {
1364     addNewFileNames(QApplication::clipboard()->mimeData());
1365     KonqOperations::doPaste(this, url);
1366 }
1367
1368 void DolphinView::updateZoomLevel(int oldZoomLevel)
1369 {
1370     const int newZoomLevel = ZoomLevelInfo::zoomLevelForIconSize(m_viewAccessor.itemView()->iconSize());
1371     if (oldZoomLevel != newZoomLevel) {
1372         m_viewModeController->setZoomLevel(newZoomLevel);
1373         emit zoomLevelChanged(newZoomLevel);
1374     }
1375 }
1376
1377 KUrl::List DolphinView::simplifiedSelectedUrls() const
1378 {
1379     KUrl::List list = selectedUrls();
1380     if (itemsExpandable() ) {
1381         list = KDirModel::simplifiedUrlList(list);
1382     }
1383     return list;
1384 }
1385
1386 QMimeData* DolphinView::selectionMimeData() const
1387 {
1388     const QAbstractItemView* view = m_viewAccessor.itemView();
1389     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
1390     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
1391     return m_viewAccessor.dirModel()->mimeData(selection.indexes());
1392 }
1393
1394 void DolphinView::addNewFileNames(const QMimeData* mimeData)
1395 {
1396     const KUrl::List urls = KUrl::List::fromMimeData(mimeData);
1397     foreach (const KUrl& url, urls) {
1398         m_newFileNames.insert(url.fileName());
1399     }
1400 }
1401
1402 DolphinView::ViewAccessor::ViewAccessor(DolphinSortFilterProxyModel* proxyModel) :
1403     m_iconsView(0),
1404     m_detailsView(0),
1405     m_columnsContainer(0),
1406     m_proxyModel(proxyModel),
1407     m_dragSource(0)
1408 {
1409 }
1410
1411 DolphinView::ViewAccessor::~ViewAccessor()
1412 {
1413     delete m_dragSource;
1414     m_dragSource = 0;
1415 }
1416
1417 void DolphinView::ViewAccessor::createView(QWidget* parent,
1418                                            DolphinViewController* dolphinViewController,
1419                                            const ViewModeController* viewModeController,
1420                                            Mode mode)
1421 {
1422     Q_ASSERT(itemView() == 0);
1423
1424     switch (mode) {
1425     case IconsView:
1426         m_iconsView = new DolphinIconsView(parent,
1427                                            dolphinViewController,
1428                                            viewModeController,
1429                                            m_proxyModel);
1430         break;
1431
1432     case DetailsView:
1433         m_detailsView = new DolphinDetailsView(parent,
1434                                                dolphinViewController,
1435                                                viewModeController,
1436                                                m_proxyModel);
1437         break;
1438
1439     case ColumnView:
1440         m_columnsContainer = new DolphinColumnViewContainer(parent,
1441                                                             dolphinViewController,
1442                                                             viewModeController);
1443         break;
1444
1445     default:
1446         Q_ASSERT(false);
1447     }
1448 }
1449
1450 void DolphinView::ViewAccessor::deleteView()
1451 {
1452     QAbstractItemView* view = itemView();
1453     if (view != 0) {
1454         if (DragAndDropHelper::instance().isDragSource(view)) {
1455             // The view is a drag source (the feature "Open folders
1456             // during drag operations" is used). Deleting the view
1457             // during an ongoing drag operation is not allowed, so
1458             // this will postponed.
1459             if (m_dragSource != 0) {
1460                 // the old stored view is obviously not the drag source anymore
1461                 m_dragSource->deleteLater();
1462                 m_dragSource = 0;
1463             }
1464             view->hide();
1465             m_dragSource = view;
1466         } else {
1467             view->deleteLater();
1468         }
1469     }
1470
1471     m_iconsView = 0;
1472     m_detailsView = 0;
1473
1474     if (m_columnsContainer != 0) {
1475         m_columnsContainer->deleteLater();
1476     }
1477     m_columnsContainer = 0;
1478 }
1479
1480
1481 void DolphinView::ViewAccessor::prepareUrlChange(const KUrl& url)
1482 {
1483     if (m_columnsContainer != 0) {
1484         m_columnsContainer->showColumn(url);
1485     }
1486 }
1487
1488 QAbstractItemView* DolphinView::ViewAccessor::itemView() const
1489 {
1490     if (m_iconsView != 0) {
1491         return m_iconsView;
1492     }
1493
1494     if (m_detailsView != 0) {
1495         return m_detailsView;
1496     }
1497
1498     if (m_columnsContainer != 0) {
1499         return m_columnsContainer->activeColumn();
1500     }
1501
1502     return 0;
1503 }
1504
1505 KFileItemDelegate* DolphinView::ViewAccessor::itemDelegate() const
1506 {
1507     return static_cast<KFileItemDelegate*>(itemView()->itemDelegate());
1508 }
1509
1510 QWidget* DolphinView::ViewAccessor::layoutTarget() const
1511 {
1512     if (m_columnsContainer != 0) {
1513         return m_columnsContainer;
1514     }
1515     return itemView();
1516 }
1517
1518 KUrl DolphinView::ViewAccessor::rootUrl() const
1519 {
1520     return (m_columnsContainer != 0) ? m_columnsContainer->rootUrl() : KUrl();
1521 }
1522
1523 bool DolphinView::ViewAccessor::supportsCategorizedSorting() const
1524 {
1525     return m_iconsView != 0;
1526 }
1527
1528 bool DolphinView::ViewAccessor::itemsExpandable() const
1529 {
1530     return (m_detailsView != 0) && m_detailsView->itemsExpandable();
1531 }
1532
1533
1534 QSet<KUrl> DolphinView::ViewAccessor::expandedUrls() const
1535 {
1536     if (m_detailsView != 0) {
1537         return m_detailsView->expandedUrls();
1538     }
1539
1540     return QSet<KUrl>();
1541 }
1542
1543 const DolphinDetailsViewExpander* DolphinView::ViewAccessor::setExpandedUrls(const QSet<KUrl>& urlsToExpand)
1544 {
1545     if ((m_detailsView != 0) && m_detailsView->itemsExpandable() && !urlsToExpand.isEmpty()) {
1546         // Check if another expander is already active and stop it if necessary.
1547         if(!m_detailsViewExpander.isNull()) {
1548             m_detailsViewExpander->stop();
1549         }
1550
1551         m_detailsViewExpander = new DolphinDetailsViewExpander(m_detailsView, urlsToExpand);
1552         return m_detailsViewExpander;
1553     }
1554     else {
1555         return 0;
1556     }
1557 }
1558
1559 bool DolphinView::ViewAccessor::reloadOnAdditionalInfoChange() const
1560 {
1561     // the details view requires no reloading of the directory, as it maps
1562     // the file item delegate info to its columns internally
1563     return m_detailsView != 0;
1564 }
1565
1566 DolphinModel* DolphinView::ViewAccessor::dirModel() const
1567 {
1568     return static_cast<DolphinModel*>(proxyModel()->sourceModel());
1569 }
1570
1571 DolphinSortFilterProxyModel* DolphinView::ViewAccessor::proxyModel() const
1572 {
1573     if (m_columnsContainer != 0) {
1574         return static_cast<DolphinSortFilterProxyModel*>(m_columnsContainer->activeColumn()->model());
1575     }
1576     return m_proxyModel;
1577 }
1578
1579 KDirLister* DolphinView::ViewAccessor::dirLister() const
1580 {
1581     return dirModel()->dirLister();
1582 }
1583
1584 void DolphinView::slotRedirection(const KUrl& oldUrl, const KUrl& newUrl)
1585 {
1586     emit redirection(oldUrl, newUrl);
1587     m_viewModeController->redirectToUrl(newUrl); // #186947
1588 }
1589
1590 void DolphinView::restoreContentsPosition()
1591 {
1592     if (!m_restoredContentsPosition.isNull()) {
1593         const int x = m_restoredContentsPosition.x();
1594         const int y = m_restoredContentsPosition.y();
1595         m_restoredContentsPosition = QPoint();
1596
1597         QAbstractItemView* view = m_viewAccessor.itemView();
1598         Q_ASSERT(view != 0);
1599         view->horizontalScrollBar()->setValue(x);
1600         view->verticalScrollBar()->setValue(y);
1601     }
1602 }
1603
1604 #include "dolphinview.moc"