src/views/dolphinview.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006-2009 by Peter Penz <peter.penz@gmx.at>             *
   3  *   Copyright (C) 2006 by Gregor Kališnik <gregor@podnapisi.net>          *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  19  ***************************************************************************/
  20
  21 #include "dolphinview.h"
  22
  23 #include <QAbstractItemView>
  24 #include <QApplication>
  25 #include <QClipboard>
  26 #include <QKeyEvent>
  27 #include <QItemSelection>
  28 #include <QBoxLayout>
  29 #include <QTimer>
  30 #include <QScrollBar>
  31
  32 #include <kactioncollection.h>
  33 #include <kcolorscheme.h>
  34 #include <kdirlister.h>
  35 #include <kiconeffect.h>
  36 #include <kfileitem.h>
  37 #include <klocale.h>
  38 #include <kio/deletejob.h>
  39 #include <kio/netaccess.h>
  40 #include <kio/previewjob.h>
  41 #include <kjob.h>
  42 #include <kmenu.h>
  43 #include <kmessagebox.h>
  44 #include <kmimetyperesolver.h>
  45 #include <konq_fileitemcapabilities.h>
  46 #include <konq_operations.h>
  47 #include <konqmimedata.h>
  48 #include <kstringhandler.h>
  49 #include <ktoggleaction.h>
  50 #include <kurl.h>
  51
  52 #include "additionalinfoaccessor.h"
  53 #include "dolphinmodel.h"
  54 #include "dolphincolumnviewcontainer.h"
  55 #include "dolphinviewcontroller.h"
  56 #include "dolphindetailsview.h"
  57 #include "dolphinfileitemdelegate.h"
  58 #include "dolphinnewfilemenuobserver.h"
  59 #include "dolphinsortfilterproxymodel.h"
  60 #include "dolphin_detailsmodesettings.h"
  61 #include "dolphiniconsview.h"
  62 #include "dolphin_generalsettings.h"
  63 #include "draganddrophelper.h"
  64 #include "renamedialog.h"
  65 #include "settings/dolphinsettings.h"
  66 #include "viewmodecontroller.h"
  67 #include "viewproperties.h"
  68 #include "zoomlevelinfo.h"
  69 #include "dolphindetailsviewexpander.h"
  70
  71 /**
  72  * Helper function for sorting items with qSort() in
  73  * DolphinView::renameSelectedItems().
  74  */
  75 bool lessThan(const KFileItem& item1, const KFileItem& item2)
  76 {
  77     return KStringHandler::naturalCompare(item1.name(), item2.name()) < 0;
  78 }
  79
  80 DolphinView::DolphinView(QWidget* parent,
  81                          const KUrl& url,
  82                          DolphinSortFilterProxyModel* proxyModel) :
  83     QWidget(parent),
  84     m_active(true),
  85     m_showPreview(false),
  86     m_storedCategorizedSorting(false),
  87     m_tabsForFiles(false),
  88     m_isContextMenuOpen(false),
  89     m_assureVisibleCurrentIndex(false),
  90     m_mode(DolphinView::IconsView),
  91     m_topLayout(0),
  92     m_dolphinViewController(0),
  93     m_viewModeController(0),
  94     m_viewAccessor(proxyModel),
  95     m_selectionChangedTimer(0),
  96     m_rootUrl(),
  97     m_activeItemUrl(),
  98     m_restoredContentsPosition(),
  99     m_createdItemUrl(),
 100     m_selectedItems(),
 101     m_newFileNames()
 102 {
 103     m_topLayout = new QVBoxLayout(this);
 104     m_topLayout->setSpacing(0);
 105     m_topLayout->setMargin(0);
 106
 107     m_dolphinViewController = new DolphinViewController(this);
 108
 109     m_viewModeController = new ViewModeController(this);
 110     m_viewModeController->setUrl(url);
 111
 112     connect(m_viewModeController, SIGNAL(urlChanged(const KUrl&)),
 113             this, SIGNAL(urlChanged(const KUrl&)));
 114
 115     connect(m_dolphinViewController, SIGNAL(requestContextMenu(const QPoint&, const QList<QAction*>&)),
 116             this, SLOT(openContextMenu(const QPoint&, const QList<QAction*>&)));
 117     connect(m_dolphinViewController, SIGNAL(urlsDropped(const KFileItem&, const KUrl&, QDropEvent*)),
 118             this, SLOT(dropUrls(const KFileItem&, const KUrl&, QDropEvent*)));
 119     connect(m_dolphinViewController, SIGNAL(sortingChanged(DolphinView::Sorting)),
 120             this, SLOT(updateSorting(DolphinView::Sorting)));
 121     connect(m_dolphinViewController, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 122             this, SLOT(updateSortOrder(Qt::SortOrder)));
 123     connect(m_dolphinViewController, SIGNAL(sortFoldersFirstChanged(bool)),
 124             this, SLOT(updateSortFoldersFirst(bool)));
 125     connect(m_dolphinViewController, SIGNAL(additionalInfoChanged(const KFileItemDelegate::InformationList&)),
 126             this, SLOT(updateAdditionalInfo(const KFileItemDelegate::InformationList&)));
 127     connect(m_dolphinViewController, SIGNAL(itemTriggered(const KFileItem&)),
 128             this, SLOT(triggerItem(const KFileItem&)));
 129     connect(m_dolphinViewController, SIGNAL(tabRequested(const KUrl&)),
 130             this, SIGNAL(tabRequested(const KUrl&)));
 131     connect(m_dolphinViewController, SIGNAL(activated()),
 132             this, SLOT(activate()));
 133     connect(m_dolphinViewController, SIGNAL(itemEntered(const KFileItem&)),
 134             this, SLOT(showHoverInformation(const KFileItem&)));
 135     connect(m_dolphinViewController, SIGNAL(viewportEntered()),
 136             this, SLOT(clearHoverInformation()));
 137     connect(m_dolphinViewController, SIGNAL(urlChangeRequested(KUrl)),
 138             m_viewModeController, SLOT(setUrl(KUrl)));
 139
 140     KDirLister* dirLister = m_viewAccessor.dirLister();
 141     connect(dirLister, SIGNAL(redirection(KUrl,KUrl)),
 142             this, SLOT(slotRedirection(KUrl,KUrl)));
 143     connect(dirLister, SIGNAL(completed()),
 144             this, SLOT(slotDirListerCompleted()));
 145     connect(dirLister, SIGNAL(refreshItems(const QList<QPair<KFileItem,KFileItem>>&)),
 146             this, SLOT(slotRefreshItems()));
 147
 148     // When a new item has been created by the "Create New..." menu, the item should
 149     // get selected and it must be assured that the item will get visible. As the
 150     // creation is done asynchronously, several signals must be checked:
 151     connect(&DolphinNewFileMenuObserver::instance(), SIGNAL(itemCreated(const KUrl&)),
 152             this, SLOT(observeCreatedItem(const KUrl&)));
 153
 154     m_selectionChangedTimer = new QTimer(this);
 155     m_selectionChangedTimer->setSingleShot(true);
 156     m_selectionChangedTimer->setInterval(300);
 157     connect(m_selectionChangedTimer, SIGNAL(timeout()),
 158             this, SLOT(emitSelectionChangedSignal()));
 159
 160     applyViewProperties();
 161     m_topLayout->addWidget(m_viewAccessor.layoutTarget());
 162 }
 163
 164 DolphinView::~DolphinView()
 165 {
 166 }
 167
 168 KUrl DolphinView::url() const
 169 {
 170     return m_viewModeController->url();
 171 }
 172
 173 KUrl DolphinView::rootUrl() const
 174 {
 175     const KUrl viewUrl = url();
 176     const KUrl root = m_viewAccessor.rootUrl();
 177     if (root.isEmpty() || !root.isParentOf(viewUrl)) {
 178         return viewUrl;
 179     }
 180     return root;
 181 }
 182
 183 void DolphinView::setActive(bool active)
 184 {
 185     if (active == m_active) {
 186         return;
 187     }
 188
 189     m_active = active;
 190
 191     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 192     if (active) {
 193         emitSelectionChangedSignal();
 194     } else {
 195         color.setAlpha(150);
 196     }
 197
 198     QWidget* viewport = m_viewAccessor.itemView()->viewport();
 199     QPalette palette;
 200     palette.setColor(viewport->backgroundRole(), color);
 201     viewport->setPalette(palette);
 202
 203     update();
 204
 205     if (active) {
 206         m_viewAccessor.itemView()->setFocus();
 207         emit activated();
 208     }
 209
 210     m_viewModeController->indicateActivationChange(active);
 211 }
 212
 213 bool DolphinView::isActive() const
 214 {
 215     return m_active;
 216 }
 217
 218 void DolphinView::setMode(Mode mode)
 219 {
 220     if (mode == m_mode) {
 221         return; // the wished mode is already set
 222     }
 223
 224     const int oldZoomLevel = m_viewModeController->zoomLevel();
 225     m_mode = mode;
 226
 227     // remember the currently selected items, so that they will
 228     // be restored after reloading the directory
 229     m_selectedItems = selectedItems();
 230
 231     deleteView();
 232
 233     const KUrl viewPropsUrl = rootUrl();
 234     ViewProperties props(viewPropsUrl);
 235     props.setViewMode(m_mode);
 236     createView();
 237
 238     // the file item delegate has been recreated, apply the current
 239     // additional information manually
 240     const KFileItemDelegate::InformationList infoList = props.additionalInfo();
 241     m_viewAccessor.itemDelegate()->setShowInformation(infoList);
 242     emit additionalInfoChanged();
 243
 244     // Not all view modes support categorized sorting. Adjust the sorting model
 245     // if changing the view mode results in a change of the categorized sorting
 246     // capabilities.
 247     m_storedCategorizedSorting = props.categorizedSorting();
 248     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 249     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
 250         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 251         emit categorizedSortingChanged();
 252     }
 253
 254     emit modeChanged();
 255
 256     updateZoomLevel(oldZoomLevel);
 257     loadDirectory(viewPropsUrl);
 258 }
 259
 260 DolphinView::Mode DolphinView::mode() const
 261 {
 262     return m_mode;
 263 }
 264
 265 bool DolphinView::showPreview() const
 266 {
 267     return m_showPreview;
 268 }
 269
 270 bool DolphinView::showHiddenFiles() const
 271 {
 272     return m_viewAccessor.dirLister()->showingDotFiles();
 273 }
 274
 275 bool DolphinView::categorizedSorting() const
 276 {
 277     // If all view modes would support categorized sorting, returning
 278     // m_viewAccessor.proxyModel()->isCategorizedModel() would be the way to go. As
 279     // currently only the icons view supports caterized sorting, we remember
 280     // the stored view properties state in m_storedCategorizedSorting and
 281     // return this state. The application takes care to disable the corresponding
 282     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 283     // that this setting is not applied to the current view mode.
 284     return m_storedCategorizedSorting;
 285 }
 286
 287 bool DolphinView::supportsCategorizedSorting() const
 288 {
 289     return m_viewAccessor.supportsCategorizedSorting();
 290 }
 291
 292 bool DolphinView::hasSelection() const
 293 {
 294     const QAbstractItemView* view = m_viewAccessor.itemView();
 295     return (view != 0) && view->selectionModel()->hasSelection();
 296 }
 297
 298 void DolphinView::markUrlsAsSelected(const QList<KUrl>& urls)
 299 {
 300     foreach (const KUrl& url, urls) {
 301         KFileItem item(KFileItem::Unknown, KFileItem::Unknown, url);
 302         m_selectedItems.append(item);
 303     }
 304 }
 305
 306 KFileItemList DolphinView::selectedItems() const
 307 {
 308     KFileItemList itemList;
 309     const QAbstractItemView* view = m_viewAccessor.itemView();
 310     if (view == 0) {
 311         return itemList;
 312     }
 313
 314     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
 315
 316     const QModelIndexList indexList = selection.indexes();
 317     foreach (const QModelIndex &index, indexList) {
 318         KFileItem item = m_viewAccessor.dirModel()->itemForIndex(index);
 319         if (!item.isNull()) {
 320             itemList.append(item);
 321         }
 322     }
 323
 324     return itemList;
 325 }
 326
 327 KUrl::List DolphinView::selectedUrls() const
 328 {
 329     KUrl::List urls;
 330     const KFileItemList list = selectedItems();
 331     foreach (const KFileItem &item, list) {
 332         urls.append(item.url());
 333     }
 334     return urls;
 335 }
 336
 337 int DolphinView::selectedItemsCount() const
 338 {
 339     const QAbstractItemView* view = m_viewAccessor.itemView();
 340     if (view == 0) {
 341         return 0;
 342     }
 343
 344     return view->selectionModel()->selectedIndexes().count();
 345 }
 346
 347 QItemSelectionModel* DolphinView::selectionModel() const
 348 {
 349     return m_viewAccessor.itemView()->selectionModel();
 350 }
 351
 352 void DolphinView::setZoomLevel(int level)
 353 {
 354     if (level < ZoomLevelInfo::minimumLevel()) {
 355         level = ZoomLevelInfo::minimumLevel();
 356     } else if (level > ZoomLevelInfo::maximumLevel()) {
 357         level = ZoomLevelInfo::maximumLevel();
 358     }
 359
 360     if (level != zoomLevel()) {
 361         m_viewModeController->setZoomLevel(level);
 362         emit zoomLevelChanged(level);
 363     }
 364 }
 365
 366 int DolphinView::zoomLevel() const
 367 {
 368     return m_viewModeController->zoomLevel();
 369 }
 370
 371 void DolphinView::setSorting(Sorting sorting)
 372 {
 373     if (sorting != this->sorting()) {
 374         updateSorting(sorting);
 375     }
 376 }
 377
 378 DolphinView::Sorting DolphinView::sorting() const
 379 {
 380     return m_viewAccessor.proxyModel()->sorting();
 381 }
 382
 383 void DolphinView::setSortOrder(Qt::SortOrder order)
 384 {
 385     if (sortOrder() != order) {
 386         updateSortOrder(order);
 387     }
 388 }
 389
 390 Qt::SortOrder DolphinView::sortOrder() const
 391 {
 392     return m_viewAccessor.proxyModel()->sortOrder();
 393 }
 394
 395 void DolphinView::setSortFoldersFirst(bool foldersFirst)
 396 {
 397     if (sortFoldersFirst() != foldersFirst) {
 398         updateSortFoldersFirst(foldersFirst);
 399     }
 400 }
 401
 402 bool DolphinView::sortFoldersFirst() const
 403 {
 404     return m_viewAccessor.proxyModel()->sortFoldersFirst();
 405 }
 406
 407 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 408 {
 409     const KUrl viewPropsUrl = rootUrl();
 410     ViewProperties props(viewPropsUrl);
 411     props.setAdditionalInfo(info);
 412     m_viewAccessor.itemDelegate()->setShowInformation(info);
 413
 414     emit additionalInfoChanged();
 415
 416     if (m_viewAccessor.reloadOnAdditionalInfoChange()) {
 417         loadDirectory(viewPropsUrl);
 418     }
 419 }
 420
 421 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 422 {
 423     return m_viewAccessor.itemDelegate()->showInformation();
 424 }
 425
 426 void DolphinView::reload()
 427 {
 428     QByteArray viewState;
 429     QDataStream saveStream(&viewState, QIODevice::WriteOnly);
 430     saveState(saveStream);
 431     m_selectedItems= selectedItems();
 432
 433     setUrl(url());
 434     loadDirectory(url(), true);
 435
 436     QDataStream restoreStream(viewState);
 437     restoreState(restoreStream);
 438 }
 439
 440 void DolphinView::stopLoading()
 441 {
 442     m_viewAccessor.dirLister()->stop();
 443 }
 444
 445 void DolphinView::refresh()
 446 {
 447     const bool oldActivationState = m_active;
 448     const int oldZoomLevel = m_viewModeController->zoomLevel();
 449     m_active = true;
 450
 451     createView();
 452     applyViewProperties();
 453     reload();
 454
 455     setActive(oldActivationState);
 456     updateZoomLevel(oldZoomLevel);
 457 }
 458
 459 void DolphinView::setNameFilter(const QString& nameFilter)
 460 {
 461     m_viewModeController->setNameFilter(nameFilter);
 462 }
 463
 464 void DolphinView::calculateItemCount(int& fileCount,
 465                                      int& folderCount,
 466                                      KIO::filesize_t& totalFileSize) const
 467 {
 468     foreach (const KFileItem& item, m_viewAccessor.dirLister()->items()) {
 469         if (item.isDir()) {
 470             ++folderCount;
 471         } else {
 472             ++fileCount;
 473             totalFileSize += item.size();
 474         }
 475     }
 476 }
 477
 478 QString DolphinView::statusBarText() const
 479 {
 480     QString text;
 481     int folderCount = 0;
 482     int fileCount = 0;
 483     KIO::filesize_t totalFileSize = 0;
 484
 485     if (hasSelection()) {
 486         // give a summary of the status of the selected files
 487         const KFileItemList list = selectedItems();
 488         if (list.isEmpty()) {
 489             // when an item is triggered, it is temporary selected but selectedItems()
 490             // will return an empty list
 491             return text;
 492         }
 493
 494         KFileItemList::const_iterator it = list.begin();
 495         const KFileItemList::const_iterator end = list.end();
 496         while (it != end) {
 497             const KFileItem& item = *it;
 498             if (item.isDir()) {
 499                 ++folderCount;
 500             } else {
 501                 ++fileCount;
 502                 totalFileSize += item.size();
 503             }
 504             ++it;
 505         }
 506
 507         if (folderCount + fileCount == 1) {
 508             // if only one item is selected, show the filename
 509             const QString name = list.first().text();
 510             text = (folderCount == 1) ? i18nc("@info:status", "<filename>%1</filename> selected", name) :
 511                                         i18nc("@info:status", "<filename>%1</filename> selected (%2)",
 512                                               name, KIO::convertSize(totalFileSize));
 513         } else {
 514             // at least 2 items are selected
 515             const QString foldersText = i18ncp("@info:status", "1 Folder selected", "%1 Folders selected", folderCount);
 516             const QString filesText = i18ncp("@info:status", "1 File selected", "%1 Files selected", fileCount);
 517             if ((folderCount > 0) && (fileCount > 0)) {
 518                 text = i18nc("@info:status folders, files (size)", "%1, %2 (%3)",
 519                              foldersText, filesText, KIO::convertSize(totalFileSize));
 520             } else if (fileCount > 0) {
 521                 text = i18nc("@info:status files (size)", "%1 (%2)", filesText, KIO::convertSize(totalFileSize));
 522             } else {
 523                 Q_ASSERT(folderCount > 0);
 524                 text = foldersText;
 525             }
 526         }
 527     } else {
 528         calculateItemCount(fileCount, folderCount, totalFileSize);
 529         text = KIO::itemsSummaryString(fileCount + folderCount,
 530                                        fileCount, folderCount,
 531                                        totalFileSize, true);
 532     }
 533
 534     return text;
 535 }
 536
 537 QList<QAction*> DolphinView::versionControlActions(const KFileItemList& items) const
 538 {
 539     return m_dolphinViewController->versionControlActions(items);
 540 }
 541
 542 void DolphinView::setUrl(const KUrl& url)
 543 {
 544     if (m_viewModeController->url() == url) {
 545         return;
 546     }
 547
 548     // The selection model might change in the case of the column view. Disconnect
 549     // from the current selection model and reconnect later after the URL switch.
 550     QAbstractItemView* view = m_viewAccessor.itemView();
 551     disconnect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
 552                this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
 553
 554     m_newFileNames.clear();
 555
 556     m_viewModeController->setUrl(url); // emits urlChanged, which we forward
 557     m_viewAccessor.prepareUrlChange(url);
 558     applyViewProperties();
 559     loadDirectory(url);
 560
 561     // When changing the URL there is no need to keep the version
 562     // data of the previous URL.
 563     m_viewAccessor.dirModel()->clearVersionData();
 564
 565     emit startedPathLoading(url);
 566
 567     // Reconnect to the (probably) new selection model
 568     view = m_viewAccessor.itemView();
 569     connect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
 570             this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
 571 }
 572
 573 void DolphinView::selectAll()
 574 {
 575     m_viewAccessor.itemView()->selectAll();
 576 }
 577
 578 void DolphinView::invertSelection()
 579 {
 580     QItemSelectionModel* selectionModel = m_viewAccessor.itemView()->selectionModel();
 581     const QAbstractItemModel* itemModel = selectionModel->model();
 582
 583     const QModelIndex topLeft = itemModel->index(0, 0);
 584     const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 585                                                      itemModel->columnCount() - 1);
 586
 587     const QItemSelection selection(topLeft, bottomRight);
 588     selectionModel->select(selection, QItemSelectionModel::Toggle);
 589 }
 590
 591 void DolphinView::clearSelection()
 592 {
 593     m_viewAccessor.itemView()->clearSelection();
 594 }
 595
 596 void DolphinView::renameSelectedItems()
 597 {
 598     KFileItemList items = selectedItems();
 599     const int itemCount = items.count();
 600     if (itemCount < 1) {
 601         return;
 602     }
 603
 604     if (itemCount > 1) {
 605         // More than one item has been selected for renaming. Open
 606         // a rename dialog and rename all items afterwards.
 607         QPointer<RenameDialog> dialog = new RenameDialog(this, items);
 608         if (dialog->exec() == QDialog::Rejected) {
 609             delete dialog;
 610             return;
 611         }
 612
 613         const QString newName = dialog->newName();
 614         if (newName.isEmpty()) {
 615             emit errorMessage(dialog->errorString());
 616             delete dialog;
 617             return;
 618         }
 619         delete dialog;
 620
 621         // the selection would be invalid after renaming the items, so just clear
 622         // it before
 623         clearSelection();
 624
 625         // TODO: check how this can be integrated into KIO::FileUndoManager/KonqOperations
 626         // as one operation instead of n rename operations like it is done now...
 627         Q_ASSERT(newName.contains('#'));
 628
 629         // currently the items are sorted by the selection order, resort
 630         // them by the file name
 631         qSort(items.begin(), items.end(), lessThan);
 632
 633         // iterate through all selected items and rename them...
 634         int index = 1;
 635         foreach (const KFileItem& item, items) {
 636             const KUrl& oldUrl = item.url();
 637             QString number;
 638             number.setNum(index++);
 639
 640             QString name = newName;
 641             name.replace('#', number);
 642
 643             if (oldUrl.fileName() != name) {
 644                 KUrl newUrl = oldUrl;
 645                 newUrl.setFileName(name);
 646                 KonqOperations::rename(this, oldUrl, newUrl);
 647             }
 648         }
 649     } else if (DolphinSettings::instance().generalSettings()->renameInline()) {
 650         Q_ASSERT(itemCount == 1);
 651         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForItem(items.first());
 652         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
 653         m_viewAccessor.itemView()->edit(proxyIndex);
 654     } else {
 655         Q_ASSERT(itemCount == 1);
 656
 657         QPointer<RenameDialog> dialog = new RenameDialog(this, items);
 658         if (dialog->exec() == QDialog::Rejected) {
 659             delete dialog;
 660             return;
 661         }
 662
 663         const QString newName = dialog->newName();
 664         if (newName.isEmpty()) {
 665             emit errorMessage(dialog->errorString());
 666             delete dialog;
 667             return;
 668         }
 669         delete dialog;
 670
 671         const KUrl& oldUrl = items.first().url();
 672         KUrl newUrl = oldUrl;
 673         newUrl.setFileName(newName);
 674         KonqOperations::rename(this, oldUrl, newUrl);
 675     }
 676
 677     // assure that the current index remains visible when KDirLister
 678     // will notify the view about changed items
 679     m_assureVisibleCurrentIndex = true;
 680 }
 681
 682 void DolphinView::trashSelectedItems()
 683 {
 684     const KUrl::List list = simplifiedSelectedUrls();
 685     KonqOperations::del(this, KonqOperations::TRASH, list);
 686 }
 687
 688 void DolphinView::deleteSelectedItems()
 689 {
 690     const KUrl::List list = simplifiedSelectedUrls();
 691     const bool del = KonqOperations::askDeleteConfirmation(list,
 692                      KonqOperations::DEL,
 693                      KonqOperations::DEFAULT_CONFIRMATION,
 694                      this);
 695
 696     if (del) {
 697         KIO::Job* job = KIO::del(list);
 698         connect(job, SIGNAL(result(KJob*)),
 699                 this, SLOT(slotDeleteFileFinished(KJob*)));
 700     }
 701 }
 702
 703 void DolphinView::cutSelectedItems()
 704 {
 705     QMimeData* mimeData = selectionMimeData();
 706     KonqMimeData::addIsCutSelection(mimeData, true);
 707     QApplication::clipboard()->setMimeData(mimeData);
 708 }
 709
 710 void DolphinView::copySelectedItems()
 711 {
 712     QMimeData* mimeData = selectionMimeData();
 713     QApplication::clipboard()->setMimeData(mimeData);
 714 }
 715
 716 void DolphinView::paste()
 717 {
 718     pasteToUrl(url());
 719 }
 720
 721 void DolphinView::pasteIntoFolder()
 722 {
 723     const KFileItemList items = selectedItems();
 724     if ((items.count() == 1) && items.first().isDir()) {
 725         pasteToUrl(items.first().url());
 726     }
 727 }
 728
 729 void DolphinView::setShowPreview(bool show)
 730 {
 731     if (m_showPreview == show) {
 732         return;
 733     }
 734
 735     const KUrl viewPropsUrl = rootUrl();
 736     ViewProperties props(viewPropsUrl);
 737     props.setShowPreview(show);
 738
 739     m_showPreview = show;
 740     const int oldZoomLevel = m_viewModeController->zoomLevel();
 741     emit showPreviewChanged();
 742
 743     // Enabling or disabling the preview might change the icon size of the view.
 744     // As the view does not emit a signal when the icon size has been changed,
 745     // the used zoom level of the controller must be adjusted manually:
 746     updateZoomLevel(oldZoomLevel);
 747 }
 748
 749 void DolphinView::setShowHiddenFiles(bool show)
 750 {
 751     if (m_viewAccessor.dirLister()->showingDotFiles() == show) {
 752         return;
 753     }
 754
 755     const KUrl viewPropsUrl = rootUrl();
 756     ViewProperties props(viewPropsUrl);
 757     props.setShowHiddenFiles(show);
 758
 759     m_viewAccessor.dirLister()->setShowingDotFiles(show);
 760     emit showHiddenFilesChanged();
 761 }
 762
 763 void DolphinView::setCategorizedSorting(bool categorized)
 764 {
 765     if (categorized == categorizedSorting()) {
 766         return;
 767     }
 768
 769     // setCategorizedSorting(true) may only get invoked
 770     // if the view supports categorized sorting
 771     Q_ASSERT(!categorized || supportsCategorizedSorting());
 772
 773     ViewProperties props(rootUrl());
 774     props.setCategorizedSorting(categorized);
 775     props.save();
 776
 777     m_storedCategorizedSorting = categorized;
 778     m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 779
 780     emit categorizedSortingChanged();
 781 }
 782
 783 void DolphinView::toggleSortOrder()
 784 {
 785     const Qt::SortOrder order = (sortOrder() == Qt::AscendingOrder) ?
 786                                 Qt::DescendingOrder :
 787                                 Qt::AscendingOrder;
 788     setSortOrder(order);
 789 }
 790
 791 void DolphinView::toggleSortFoldersFirst()
 792 {
 793     setSortFoldersFirst(!sortFoldersFirst());
 794 }
 795
 796 void DolphinView::toggleAdditionalInfo(QAction* action)
 797 {
 798     const KFileItemDelegate::Information info =
 799         static_cast<KFileItemDelegate::Information>(action->data().toInt());
 800
 801     KFileItemDelegate::InformationList list = additionalInfo();
 802
 803     const bool show = action->isChecked();
 804
 805     const int index = list.indexOf(info);
 806     const bool containsInfo = (index >= 0);
 807     if (show && !containsInfo) {
 808         list.append(info);
 809         setAdditionalInfo(list);
 810     } else if (!show && containsInfo) {
 811         list.removeAt(index);
 812         setAdditionalInfo(list);
 813         Q_ASSERT(list.indexOf(info) < 0);
 814     }
 815 }
 816
 817 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 818 {
 819     QWidget::mouseReleaseEvent(event);
 820     setActive(true);
 821 }
 822
 823 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 824 {
 825     switch (event->type()) {
 826     case QEvent::FocusIn:
 827         if (watched == m_viewAccessor.itemView()) {
 828             m_dolphinViewController->requestActivation();
 829         }
 830         break;
 831
 832     case QEvent::DragEnter:
 833         if (watched == m_viewAccessor.itemView()->viewport()) {
 834             setActive(true);
 835         }
 836         break;
 837
 838     case QEvent::KeyPress:
 839         if (watched == m_viewAccessor.itemView()) {
 840             // clear the selection when Escape has been pressed
 841             QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
 842             if (keyEvent->key() == Qt::Key_Escape) {
 843                 clearSelection();
 844             }
 845         }
 846         break;
 847
 848     case QEvent::Wheel:
 849         if (watched == m_viewAccessor.itemView()->viewport()) {
 850             // Ctrl+wheel events should cause icon zooming, but not if the left mouse button is pressed
 851             // (the user is probably trying to scroll during a selection in that case)
 852             QWheelEvent* wheelEvent = static_cast<QWheelEvent*>(event);
 853             if (wheelEvent->modifiers() & Qt::ControlModifier && !(wheelEvent->buttons() & Qt::LeftButton)) {
 854                 const int delta = wheelEvent->delta();
 855                 const int level = zoomLevel();
 856                 if (delta > 0) {
 857                     setZoomLevel(level + 1);
 858                 } else if (delta < 0) {
 859                     setZoomLevel(level - 1);
 860                 }
 861                 return true;
 862             }
 863         }
 864         break;
 865
 866     default:
 867         break;
 868     }
 869
 870     return QWidget::eventFilter(watched, event);
 871 }
 872
 873 void DolphinView::activate()
 874 {
 875     setActive(true);
 876 }
 877
 878 void DolphinView::triggerItem(const KFileItem& item)
 879 {
 880     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 881     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 882         // items are selected by the user, hence don't trigger the
 883         // item specified by 'index'
 884         return;
 885     }
 886
 887     // TODO: the m_isContextMenuOpen check is a workaround for Qt-issue 207192
 888     if (item.isNull() || m_isContextMenuOpen) {
 889         return;
 890     }
 891
 892     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 893 }
 894
 895 void DolphinView::slotSelectionChanged(const QItemSelection& selected, const QItemSelection& deselected)
 896 {
 897     const int count = selectedItemsCount();
 898     const bool selectionStateChanged = ((count >  0) && (selected.count() == count)) ||
 899                                        ((count == 0) && !deselected.isEmpty());
 900
 901     // If nothing has been selected before and something got selected (or if something
 902     // was selected before and now nothing is selected) the selectionChangedSignal must
 903     // be emitted asynchronously as fast as possible to update the edit-actions.
 904     m_selectionChangedTimer->setInterval(selectionStateChanged ? 0 : 300);
 905     m_selectionChangedTimer->start();
 906 }
 907
 908 void DolphinView::emitSelectionChangedSignal()
 909 {
 910     emit selectionChanged(DolphinView::selectedItems());
 911 }
 912
 913 void DolphinView::openContextMenu(const QPoint& pos,
 914                                   const QList<QAction*>& customActions)
 915 {
 916     KFileItem item;
 917     const QModelIndex index = m_viewAccessor.itemView()->indexAt(pos);
 918     if (index.isValid() && (index.column() == DolphinModel::Name)) {
 919         const QModelIndex dolphinModelIndex = m_viewAccessor.proxyModel()->mapToSource(index);
 920         item = m_viewAccessor.dirModel()->itemForIndex(dolphinModelIndex);
 921     }
 922
 923     m_isContextMenuOpen = true; // TODO: workaround for Qt-issue 207192
 924     emit requestContextMenu(item, url(), customActions);
 925     m_isContextMenuOpen = false;
 926 }
 927
 928 void DolphinView::dropUrls(const KFileItem& destItem,
 929                            const KUrl& destPath,
 930                            QDropEvent* event)
 931 {
 932     addNewFileNames(event->mimeData());
 933     DragAndDropHelper::instance().dropUrls(destItem, destPath, event, this);
 934 }
 935
 936 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 937 {
 938     ViewProperties props(rootUrl());
 939     props.setSorting(sorting);
 940
 941     m_viewAccessor.proxyModel()->setSorting(sorting);
 942
 943     emit sortingChanged(sorting);
 944 }
 945
 946 void DolphinView::updateSortOrder(Qt::SortOrder order)
 947 {
 948     ViewProperties props(rootUrl());
 949     props.setSortOrder(order);
 950
 951     m_viewAccessor.proxyModel()->setSortOrder(order);
 952
 953     emit sortOrderChanged(order);
 954 }
 955
 956 void DolphinView::updateSortFoldersFirst(bool foldersFirst)
 957 {
 958     ViewProperties props(rootUrl());
 959     props.setSortFoldersFirst(foldersFirst);
 960
 961     m_viewAccessor.proxyModel()->setSortFoldersFirst(foldersFirst);
 962
 963     emit sortFoldersFirstChanged(foldersFirst);
 964 }
 965
 966 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 967 {
 968     ViewProperties props(rootUrl());
 969     props.setAdditionalInfo(info);
 970     props.save();
 971
 972     m_viewAccessor.itemDelegate()->setShowInformation(info);
 973
 974     emit additionalInfoChanged();
 975 }
 976
 977 void DolphinView::updateAdditionalInfoActions(KActionCollection* collection)
 978 {
 979     const AdditionalInfoAccessor& infoAccessor = AdditionalInfoAccessor::instance();
 980
 981     const KFileItemDelegate::InformationList checkedInfo = m_viewAccessor.itemDelegate()->showInformation();
 982     const KFileItemDelegate::InformationList infoKeys = infoAccessor.keys();
 983
 984     const bool enable = (m_mode == DolphinView::DetailsView) ||
 985                         (m_mode == DolphinView::IconsView);
 986
 987     foreach (const KFileItemDelegate::Information& info, infoKeys) {
 988         const QString name = infoAccessor.actionCollectionName(info, AdditionalInfoAccessor::AdditionalInfoType);
 989         QAction* action = collection->action(name);
 990         Q_ASSERT(action != 0);
 991         action->setEnabled(enable);
 992         action->setChecked(checkedInfo.contains(info));
 993     }
 994 }
 995
 996 QPair<bool, QString> DolphinView::pasteInfo() const
 997 {
 998     return KonqOperations::pasteInfo(url());
 999 }
1000
1001 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
1002 {
1003     m_tabsForFiles = tabsForFiles;
1004 }
1005
1006 bool DolphinView::isTabsForFilesEnabled() const
1007 {
1008     return m_tabsForFiles;
1009 }
1010
1011 bool DolphinView::itemsExpandable() const
1012 {
1013     return m_viewAccessor.itemsExpandable();
1014 }
1015
1016 void DolphinView::restoreState(QDataStream& stream)
1017 {
1018     // current item
1019     stream >> m_activeItemUrl;
1020
1021     // view position
1022     stream >> m_restoredContentsPosition;
1023
1024     // expanded folders (only relevant for the details view - will be ignored by the view in other view modes)
1025     QSet<KUrl> urlsToExpand;
1026     stream >> urlsToExpand;
1027     const DolphinDetailsViewExpander* expander = m_viewAccessor.setExpandedUrls(urlsToExpand);
1028     if (expander != 0) {
1029         m_expanderActive = true;
1030         connect (expander, SIGNAL(completed()), this, SLOT(slotLoadingCompleted()));
1031     }
1032     else {
1033         m_expanderActive = false;
1034     }
1035 }
1036
1037 void DolphinView::saveState(QDataStream& stream)
1038 {
1039     // current item
1040     KFileItem currentItem;
1041     const QAbstractItemView* view = m_viewAccessor.itemView();
1042
1043     if (view != 0) {
1044         const QModelIndex proxyIndex = view->currentIndex();
1045         const QModelIndex dirModelIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
1046         currentItem = m_viewAccessor.dirModel()->itemForIndex(dirModelIndex);
1047     }
1048
1049     KUrl currentUrl;
1050     if (!currentItem.isNull()) {
1051         currentUrl = currentItem.url();
1052     }
1053
1054     stream << currentUrl;
1055
1056     // view position
1057     const int x = view->horizontalScrollBar()->value();
1058     const int y = view->verticalScrollBar()->value();
1059     stream << QPoint(x, y);
1060
1061     // expanded folders (only relevant for the details view - the set will be empty in other view modes)
1062     stream << m_viewAccessor.expandedUrls();
1063 }
1064
1065 void DolphinView::observeCreatedItem(const KUrl& url)
1066 {
1067     m_createdItemUrl = url;
1068     connect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
1069             this, SLOT(selectAndScrollToCreatedItem()));
1070 }
1071
1072 void DolphinView::selectAndScrollToCreatedItem()
1073 {
1074     const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_createdItemUrl);
1075     if (dirIndex.isValid()) {
1076         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1077         m_viewAccessor.itemView()->setCurrentIndex(proxyIndex);
1078     }
1079
1080     disconnect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
1081                this, SLOT(selectAndScrollToCreatedItem()));
1082     m_createdItemUrl = KUrl();
1083 }
1084
1085 void DolphinView::showHoverInformation(const KFileItem& item)
1086 {
1087     emit requestItemInfo(item);
1088 }
1089
1090 void DolphinView::clearHoverInformation()
1091 {
1092     emit requestItemInfo(KFileItem());
1093 }
1094
1095 void DolphinView::slotDeleteFileFinished(KJob* job)
1096 {
1097     if (job->error() == 0) {
1098         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1099     } else if (job->error() != KIO::ERR_USER_CANCELED) {
1100         emit errorMessage(job->errorString());
1101     }
1102 }
1103
1104 void DolphinView::slotDirListerCompleted()
1105 {
1106     if (!m_expanderActive) {
1107         slotLoadingCompleted();
1108     }
1109
1110     if (!m_newFileNames.isEmpty()) {
1111         // select all newly added items created by a paste operation or
1112         // a drag & drop operation, and clear the previous selection
1113         m_viewAccessor.itemView()->clearSelection();
1114         const int rowCount = m_viewAccessor.proxyModel()->rowCount();
1115         QItemSelection selection;
1116         for (int row = 0; row < rowCount; ++row) {
1117             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->index(row, 0);
1118             const QModelIndex dirIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
1119             const KUrl url = m_viewAccessor.dirModel()->itemForIndex(dirIndex).url();
1120             if (m_newFileNames.contains(url.fileName())) {
1121                 selection.merge(QItemSelection(proxyIndex, proxyIndex), QItemSelectionModel::Select);
1122             }
1123         }
1124         m_viewAccessor.itemView()->selectionModel()->select(selection, QItemSelectionModel::Select);
1125
1126         m_newFileNames.clear();
1127     }
1128 }
1129
1130 void DolphinView::slotLoadingCompleted()
1131 {
1132     m_expanderActive = false;
1133
1134     if (!m_activeItemUrl.isEmpty()) {
1135         // assure that the current item remains visible
1136         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_activeItemUrl);
1137         if (dirIndex.isValid()) {
1138             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1139             QAbstractItemView* view = m_viewAccessor.itemView();
1140             const bool clearSelection = !hasSelection();
1141             view->setCurrentIndex(proxyIndex);
1142             if (clearSelection) {
1143                 view->clearSelection();
1144             }
1145             m_activeItemUrl.clear();
1146         }
1147     }
1148
1149     if (!m_selectedItems.isEmpty()) {
1150         const KUrl& baseUrl = url();
1151         KUrl url;
1152         QItemSelection newSelection;
1153         foreach(const KFileItem& item, m_selectedItems) {
1154             url = item.url().upUrl();
1155             if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
1156                 QModelIndex index = m_viewAccessor.proxyModel()->mapFromSource(m_viewAccessor.dirModel()->indexForItem(item));
1157                 newSelection.select(index, index);
1158             }
1159         }
1160         m_viewAccessor.itemView()->selectionModel()->select(newSelection,
1161                                                             QItemSelectionModel::ClearAndSelect
1162                                                             | QItemSelectionModel::Current);
1163         m_selectedItems.clear();
1164     }
1165
1166     // Restore the contents position. This has to be done using a Qt::QueuedConnection
1167     // because the view might not be in its final state yet.
1168     QMetaObject::invokeMethod(this, "restoreContentsPosition", Qt::QueuedConnection);
1169
1170     emit finishedPathLoading(url());
1171 }
1172
1173 void DolphinView::slotRefreshItems()
1174 {
1175     if (m_assureVisibleCurrentIndex) {
1176         m_assureVisibleCurrentIndex = false;
1177         m_viewAccessor.itemView()->scrollTo(m_viewAccessor.itemView()->currentIndex());
1178     }
1179 }
1180
1181 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1182 {
1183     if (!url.isValid()) {
1184         const QString location(url.pathOrUrl());
1185         if (location.isEmpty()) {
1186             emit errorMessage(i18nc("@info:status", "The location is empty."));
1187         } else {
1188             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1189         }
1190         return;
1191     }
1192
1193     KDirLister* dirLister = m_viewAccessor.dirLister();
1194     dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
1195 }
1196
1197 void DolphinView::applyViewProperties()
1198 {
1199     const ViewProperties props(rootUrl());
1200
1201     const Mode mode = props.viewMode();
1202     if (m_mode != mode) {
1203         const int oldZoomLevel = m_viewModeController->zoomLevel();
1204
1205         m_mode = mode;
1206         createView();
1207         emit modeChanged();
1208
1209         updateZoomLevel(oldZoomLevel);
1210     }
1211     if (m_viewAccessor.itemView() == 0) {
1212         createView();
1213     }
1214     Q_ASSERT(m_viewAccessor.itemView() != 0);
1215     Q_ASSERT(m_viewAccessor.itemDelegate() != 0);
1216
1217     const bool showHiddenFiles = props.showHiddenFiles();
1218     if (showHiddenFiles != m_viewAccessor.dirLister()->showingDotFiles()) {
1219         m_viewAccessor.dirLister()->setShowingDotFiles(showHiddenFiles);
1220         emit showHiddenFilesChanged();
1221     }
1222
1223     m_storedCategorizedSorting = props.categorizedSorting();
1224     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1225     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
1226         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
1227         emit categorizedSortingChanged();
1228     }
1229
1230     const DolphinView::Sorting sorting = props.sorting();
1231     if (sorting != m_viewAccessor.proxyModel()->sorting()) {
1232         m_viewAccessor.proxyModel()->setSorting(sorting);
1233         emit sortingChanged(sorting);
1234     }
1235
1236     const Qt::SortOrder sortOrder = props.sortOrder();
1237     if (sortOrder != m_viewAccessor.proxyModel()->sortOrder()) {
1238         m_viewAccessor.proxyModel()->setSortOrder(sortOrder);
1239         emit sortOrderChanged(sortOrder);
1240     }
1241
1242     const bool sortFoldersFirst = props.sortFoldersFirst();
1243     if (sortFoldersFirst != m_viewAccessor.proxyModel()->sortFoldersFirst()) {
1244         m_viewAccessor.proxyModel()->setSortFoldersFirst(sortFoldersFirst);
1245         emit sortFoldersFirstChanged(sortFoldersFirst);
1246     }
1247
1248     KFileItemDelegate::InformationList info = props.additionalInfo();
1249     if (info != m_viewAccessor.itemDelegate()->showInformation()) {
1250         m_viewAccessor.itemDelegate()->setShowInformation(info);
1251         emit additionalInfoChanged();
1252     }
1253
1254     const bool showPreview = props.showPreview();
1255     if (showPreview != m_showPreview) {
1256         m_showPreview = showPreview;
1257         const int oldZoomLevel = m_viewModeController->zoomLevel();
1258         emit showPreviewChanged();
1259
1260         // Enabling or disabling the preview might change the icon size of the view.
1261         // As the view does not emit a signal when the icon size has been changed,
1262         // the used zoom level of the controller must be adjusted manually:
1263         updateZoomLevel(oldZoomLevel);
1264     }
1265 }
1266
1267 void DolphinView::createView()
1268 {
1269     QAbstractItemView* view = m_viewAccessor.itemView();
1270     if ((view != 0) && (view->selectionModel() != 0)) {
1271         disconnect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
1272                    this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
1273     }
1274
1275     deleteView();
1276
1277     Q_ASSERT(m_viewAccessor.itemView() == 0);
1278     m_viewAccessor.createView(this, m_dolphinViewController, m_viewModeController, m_mode);
1279
1280     view = m_viewAccessor.itemView();
1281     Q_ASSERT(view != 0);
1282     view->installEventFilter(this);
1283     view->viewport()->installEventFilter(this);
1284
1285     m_dolphinViewController->setItemView(view);
1286
1287     const int zoomLevel = ZoomLevelInfo::zoomLevelForIconSize(view->iconSize());
1288     m_viewModeController->setZoomLevel(zoomLevel);
1289
1290     connect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
1291             this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
1292
1293     setFocusProxy(m_viewAccessor.layoutTarget());
1294     m_topLayout->insertWidget(1, m_viewAccessor.layoutTarget());
1295 }
1296
1297 void DolphinView::deleteView()
1298 {
1299     QAbstractItemView* view = m_viewAccessor.itemView();
1300     if (view != 0) {
1301         // It's important to set the keyboard focus to the parent
1302         // before deleting the view: Otherwise when having a split
1303         // view the other view will get the focus and will request
1304         // an activation (see DolphinView::eventFilter()).
1305         setFocusProxy(0);
1306         setFocus();
1307
1308         m_topLayout->removeWidget(view);
1309         view->close();
1310
1311         // disconnect all signal/slots
1312         disconnect(view);
1313         m_viewModeController->disconnect(view);
1314         view->disconnect();
1315
1316         m_viewAccessor.deleteView();
1317     }
1318 }
1319
1320 void DolphinView::pasteToUrl(const KUrl& url)
1321 {
1322     addNewFileNames(QApplication::clipboard()->mimeData());
1323     KonqOperations::doPaste(this, url);
1324 }
1325
1326 void DolphinView::updateZoomLevel(int oldZoomLevel)
1327 {
1328     const int newZoomLevel = ZoomLevelInfo::zoomLevelForIconSize(m_viewAccessor.itemView()->iconSize());
1329     if (oldZoomLevel != newZoomLevel) {
1330         m_viewModeController->setZoomLevel(newZoomLevel);
1331         emit zoomLevelChanged(newZoomLevel);
1332     }
1333 }
1334
1335 KUrl::List DolphinView::simplifiedSelectedUrls() const
1336 {
1337     KUrl::List list = selectedUrls();
1338     if (itemsExpandable() ) {
1339         list = KDirModel::simplifiedUrlList(list);
1340     }
1341     return list;
1342 }
1343
1344 QMimeData* DolphinView::selectionMimeData() const
1345 {
1346     const QAbstractItemView* view = m_viewAccessor.itemView();
1347     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
1348     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
1349     return m_viewAccessor.dirModel()->mimeData(selection.indexes());
1350 }
1351
1352 void DolphinView::addNewFileNames(const QMimeData* mimeData)
1353 {
1354     const KUrl::List urls = KUrl::List::fromMimeData(mimeData);
1355     foreach (const KUrl& url, urls) {
1356         m_newFileNames.insert(url.fileName());
1357     }
1358 }
1359
1360 DolphinView::ViewAccessor::ViewAccessor(DolphinSortFilterProxyModel* proxyModel) :
1361     m_iconsView(0),
1362     m_detailsView(0),
1363     m_columnsContainer(0),
1364     m_proxyModel(proxyModel),
1365     m_dragSource(0)
1366 {
1367 }
1368
1369 DolphinView::ViewAccessor::~ViewAccessor()
1370 {
1371     delete m_dragSource;
1372     m_dragSource = 0;
1373 }
1374
1375 void DolphinView::ViewAccessor::createView(QWidget* parent,
1376                                            DolphinViewController* dolphinViewController,
1377                                            const ViewModeController* viewModeController,
1378                                            Mode mode)
1379 {
1380     Q_ASSERT(itemView() == 0);
1381
1382     switch (mode) {
1383     case IconsView:
1384         m_iconsView = new DolphinIconsView(parent,
1385                                            dolphinViewController,
1386                                            viewModeController,
1387                                            m_proxyModel);
1388         break;
1389
1390     case DetailsView:
1391         m_detailsView = new DolphinDetailsView(parent,
1392                                                dolphinViewController,
1393                                                viewModeController,
1394                                                m_proxyModel);
1395         break;
1396
1397     case ColumnView:
1398         m_columnsContainer = new DolphinColumnViewContainer(parent,
1399                                                             dolphinViewController,
1400                                                             viewModeController);
1401         break;
1402
1403     default:
1404         Q_ASSERT(false);
1405     }
1406 }
1407
1408 void DolphinView::ViewAccessor::deleteView()
1409 {
1410     QAbstractItemView* view = itemView();
1411     if (view != 0) {
1412         if (DragAndDropHelper::instance().isDragSource(view)) {
1413             // The view is a drag source (the feature "Open folders
1414             // during drag operations" is used). Deleting the view
1415             // during an ongoing drag operation is not allowed, so
1416             // this will postponed.
1417             if (m_dragSource != 0) {
1418                 // the old stored view is obviously not the drag source anymore
1419                 m_dragSource->deleteLater();
1420                 m_dragSource = 0;
1421             }
1422             view->hide();
1423             m_dragSource = view;
1424         } else {
1425             view->deleteLater();
1426         }
1427     }
1428
1429     m_iconsView = 0;
1430     m_detailsView = 0;
1431
1432     if (m_columnsContainer != 0) {
1433         m_columnsContainer->deleteLater();
1434     }
1435     m_columnsContainer = 0;
1436 }
1437
1438
1439 void DolphinView::ViewAccessor::prepareUrlChange(const KUrl& url)
1440 {
1441     if (m_columnsContainer != 0) {
1442         m_columnsContainer->showColumn(url);
1443     }
1444 }
1445
1446 QAbstractItemView* DolphinView::ViewAccessor::itemView() const
1447 {
1448     if (m_iconsView != 0) {
1449         return m_iconsView;
1450     }
1451
1452     if (m_detailsView != 0) {
1453         return m_detailsView;
1454     }
1455
1456     if (m_columnsContainer != 0) {
1457         return m_columnsContainer->activeColumn();
1458     }
1459
1460     return 0;
1461 }
1462
1463 KFileItemDelegate* DolphinView::ViewAccessor::itemDelegate() const
1464 {
1465     return static_cast<KFileItemDelegate*>(itemView()->itemDelegate());
1466 }
1467
1468 QWidget* DolphinView::ViewAccessor::layoutTarget() const
1469 {
1470     if (m_columnsContainer != 0) {
1471         return m_columnsContainer;
1472     }
1473     return itemView();
1474 }
1475
1476 KUrl DolphinView::ViewAccessor::rootUrl() const
1477 {
1478     return (m_columnsContainer != 0) ? m_columnsContainer->rootUrl() : KUrl();
1479 }
1480
1481 bool DolphinView::ViewAccessor::supportsCategorizedSorting() const
1482 {
1483     return m_iconsView != 0;
1484 }
1485
1486 bool DolphinView::ViewAccessor::itemsExpandable() const
1487 {
1488     return (m_detailsView != 0) && m_detailsView->itemsExpandable();
1489 }
1490
1491
1492 QSet<KUrl> DolphinView::ViewAccessor::expandedUrls() const
1493 {
1494     if (m_detailsView != 0) {
1495         return m_detailsView->expandedUrls();
1496     }
1497
1498     return QSet<KUrl>();
1499 }
1500
1501 const DolphinDetailsViewExpander* DolphinView::ViewAccessor::setExpandedUrls(const QSet<KUrl>& urlsToExpand)
1502 {
1503     if ((m_detailsView != 0) && m_detailsView->itemsExpandable() && !urlsToExpand.isEmpty()) {
1504         // Check if another expander is already active and stop it if necessary.
1505         if(!m_detailsViewExpander.isNull()) {
1506             m_detailsViewExpander->stop();
1507         }
1508
1509         m_detailsViewExpander = new DolphinDetailsViewExpander(m_detailsView, urlsToExpand);
1510         return m_detailsViewExpander;
1511     }
1512     else {
1513         return 0;
1514     }
1515 }
1516
1517 bool DolphinView::ViewAccessor::reloadOnAdditionalInfoChange() const
1518 {
1519     // the details view requires no reloading of the directory, as it maps
1520     // the file item delegate info to its columns internally
1521     return m_detailsView != 0;
1522 }
1523
1524 DolphinModel* DolphinView::ViewAccessor::dirModel() const
1525 {
1526     return static_cast<DolphinModel*>(proxyModel()->sourceModel());
1527 }
1528
1529 DolphinSortFilterProxyModel* DolphinView::ViewAccessor::proxyModel() const
1530 {
1531     if (m_columnsContainer != 0) {
1532         return static_cast<DolphinSortFilterProxyModel*>(m_columnsContainer->activeColumn()->model());
1533     }
1534     return m_proxyModel;
1535 }
1536
1537 KDirLister* DolphinView::ViewAccessor::dirLister() const
1538 {
1539     return dirModel()->dirLister();
1540 }
1541
1542 void DolphinView::slotRedirection(const KUrl& oldUrl, const KUrl& newUrl)
1543 {
1544     if (oldUrl.equals(url(), KUrl::CompareWithoutTrailingSlash)) {
1545         emit redirection(oldUrl, newUrl);
1546         m_viewModeController->redirectToUrl(newUrl); // #186947
1547     }
1548 }
1549
1550 void DolphinView::restoreContentsPosition()
1551 {
1552     if (!m_restoredContentsPosition.isNull()) {
1553         const int x = m_restoredContentsPosition.x();
1554         const int y = m_restoredContentsPosition.y();
1555         m_restoredContentsPosition = QPoint();
1556
1557         QAbstractItemView* view = m_viewAccessor.itemView();
1558         Q_ASSERT(view != 0);
1559         view->horizontalScrollBar()->setValue(x);
1560         view->verticalScrollBar()->setValue(y);
1561     }
1562 }
1563
1564 #include "dolphinview.moc"