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