src/dolphinview.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006 by Peter Penz <peter.penz@gmx.at>                  *
   3  *   Copyright (C) 2006 by Gregor Kališnik <gregor@podnapisi.net>          *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  19  ***************************************************************************/
  20
  21 #include "dolphinview.h"
  22
  23 #include <QAbstractItemView>
  24 #include <QApplication>
  25 #include <QClipboard>
  26 #include <QKeyEvent>
  27 #include <QItemSelection>
  28 #include <QBoxLayout>
  29 #include <QTimer>
  30 #include <QScrollBar>
  31
  32 #include <kactioncollection.h>
  33 #include <kcolorscheme.h>
  34 #include <kdirlister.h>
  35 #include <kiconeffect.h>
  36 #include <kfileitem.h>
  37 #include <klocale.h>
  38 #include <kio/deletejob.h>
  39 #include <kio/netaccess.h>
  40 #include <kio/previewjob.h>
  41 #include <kjob.h>
  42 #include <kmenu.h>
  43 #include <kmessagebox.h>
  44 #include <kmimetyperesolver.h>
  45 #include <konq_fileitemcapabilities.h>
  46 #include <konq_operations.h>
  47 #include <konqmimedata.h>
  48 #include <kstringhandler.h>
  49 #include <ktoggleaction.h>
  50 #include <kurl.h>
  51
  52 #include "dolphinmodel.h"
  53 #include "dolphincolumnviewcontainer.h"
  54 #include "dolphincontroller.h"
  55 #include "dolphindetailsview.h"
  56 #include "dolphinfileitemdelegate.h"
  57 #include "dolphinnewmenuobserver.h"
  58 #include "dolphinsortfilterproxymodel.h"
  59 #include "dolphin_detailsmodesettings.h"
  60 #include "dolphiniconsview.h"
  61 #include "dolphin_generalsettings.h"
  62 #include "draganddrophelper.h"
  63 #include "folderexpander.h"
  64 #include "renamedialog.h"
  65 #include "settings/dolphinsettings.h"
  66 #include "versioncontrolobserver.h"
  67 #include "viewproperties.h"
  68 #include "zoomlevelinfo.h"
  69
  70 /**
  71  * Helper function for sorting items with qSort() in
  72  * DolphinView::renameSelectedItems().
  73  */
  74 bool lessThan(const KFileItem& item1, const KFileItem& item2)
  75 {
  76     return KStringHandler::naturalCompare(item1.name(), item2.name()) < 0;
  77 }
  78
  79 DolphinView::DolphinView(QWidget* parent,
  80                          const KUrl& url,
  81                          DolphinSortFilterProxyModel* proxyModel) :
  82     QWidget(parent),
  83     m_active(true),
  84     m_showPreview(false),
  85     m_loadingDirectory(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_controller(0),
  94     m_viewAccessor(proxyModel),
  95     m_selectionModel(0),
  96     m_selectionChangedTimer(0),
  97     m_versionControlObserver(0),
  98     m_rootUrl(),
  99     m_activeItemUrl(),
 100     m_createdItemUrl(),
 101     m_selectedItems(),
 102     m_newFileNames(),
 103     m_expandedDragSource(0)
 104 {
 105     m_topLayout = new QVBoxLayout(this);
 106     m_topLayout->setSpacing(0);
 107     m_topLayout->setMargin(0);
 108
 109     m_controller = new DolphinController(this);
 110     m_controller->setUrl(url);
 111
 112     connect(m_controller, SIGNAL(urlChanged(const KUrl&)),
 113             this, SIGNAL(urlChanged(const KUrl&)));
 114     connect(m_controller, SIGNAL(requestUrlChange(const KUrl&)),
 115             this, SLOT(slotRequestUrlChange(const KUrl&)));
 116
 117     connect(m_controller, SIGNAL(requestContextMenu(const QPoint&, const QList<QAction*>&)),
 118             this, SLOT(openContextMenu(const QPoint&, const QList<QAction*>&)));
 119     connect(m_controller, SIGNAL(urlsDropped(const KFileItem&, const KUrl&, QDropEvent*)),
 120             this, SLOT(dropUrls(const KFileItem&, const KUrl&, QDropEvent*)));
 121     connect(m_controller, SIGNAL(sortingChanged(DolphinView::Sorting)),
 122             this, SLOT(updateSorting(DolphinView::Sorting)));
 123     connect(m_controller, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 124             this, SLOT(updateSortOrder(Qt::SortOrder)));
 125     connect(m_controller, SIGNAL(sortFoldersFirstChanged(bool)),
 126             this, SLOT(updateSortFoldersFirst(bool)));
 127     connect(m_controller, SIGNAL(additionalInfoChanged(const KFileItemDelegate::InformationList&)),
 128             this, SLOT(updateAdditionalInfo(const KFileItemDelegate::InformationList&)));
 129     connect(m_controller, SIGNAL(itemTriggered(const KFileItem&)),
 130             this, SLOT(triggerItem(const KFileItem&)));
 131     connect(m_controller, SIGNAL(tabRequested(const KUrl&)),
 132             this, SIGNAL(tabRequested(const KUrl&)));
 133     connect(m_controller, SIGNAL(activated()),
 134             this, SLOT(activate()));
 135     connect(m_controller, SIGNAL(itemEntered(const KFileItem&)),
 136             this, SLOT(showHoverInformation(const KFileItem&)));
 137     connect(m_controller, SIGNAL(viewportEntered()),
 138             this, SLOT(clearHoverInformation()));
 139
 140     KDirLister* dirLister = m_viewAccessor.dirLister();
 141     connect(dirLister, SIGNAL(redirection(KUrl, KUrl)),
 142             this, SIGNAL(redirection(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(&DolphinNewMenuObserver::instance(), SIGNAL(itemCreated(const KUrl&)),
 152             this, SLOT(observeCreatedItem(const KUrl&)));
 153
 154     applyViewProperties();
 155     m_topLayout->addWidget(m_viewAccessor.itemView());
 156 }
 157
 158 DolphinView::~DolphinView()
 159 {
 160     delete m_expandedDragSource;
 161     m_expandedDragSource = 0;
 162 }
 163
 164 const KUrl& DolphinView::url() const
 165 {
 166     return m_controller->url();
 167 }
 168
 169 KUrl DolphinView::rootUrl() const
 170 {
 171     const KUrl viewUrl = url();
 172     const KUrl root = m_viewAccessor.rootUrl();
 173     if (root.isEmpty() || !root.isParentOf(viewUrl)) {
 174         return viewUrl;
 175     }
 176     return root;
 177 }
 178
 179 void DolphinView::setActive(bool active)
 180 {
 181     if (active == m_active) {
 182         return;
 183     }
 184
 185     m_active = active;
 186
 187     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 188     if (active) {
 189         emitSelectionChangedSignal();
 190     } else {
 191         color.setAlpha(150);
 192     }
 193
 194     QWidget* viewport = m_viewAccessor.itemView()->viewport();
 195     QPalette palette;
 196     palette.setColor(viewport->backgroundRole(), color);
 197     viewport->setPalette(palette);
 198
 199     update();
 200
 201     if (active) {
 202         m_viewAccessor.itemView()->setFocus();
 203         emit activated();
 204     }
 205
 206     m_controller->indicateActivationChange(active);
 207 }
 208
 209 bool DolphinView::isActive() const
 210 {
 211     return m_active;
 212 }
 213
 214 void DolphinView::setMode(Mode mode)
 215 {
 216     if (mode == m_mode) {
 217         return; // the wished mode is already set
 218     }
 219
 220     const int oldZoomLevel = m_controller->zoomLevel();
 221     m_mode = mode;
 222
 223     deleteView();
 224
 225     const KUrl viewPropsUrl = rootUrl();
 226     ViewProperties props(viewPropsUrl);
 227     props.setViewMode(m_mode);
 228     createView();
 229
 230     // the file item delegate has been recreated, apply the current
 231     // additional information manually
 232     const KFileItemDelegate::InformationList infoList = props.additionalInfo();
 233     m_viewAccessor.itemDelegate()->setShowInformation(infoList);
 234     emit additionalInfoChanged();
 235
 236     // Not all view modes support categorized sorting. Adjust the sorting model
 237     // if changing the view mode results in a change of the categorized sorting
 238     // capabilities.
 239     m_storedCategorizedSorting = props.categorizedSorting();
 240     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 241     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
 242         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 243         emit categorizedSortingChanged();
 244     }
 245
 246     emit modeChanged();
 247
 248     updateZoomLevel(oldZoomLevel);
 249     if (m_showPreview) {
 250         loadDirectory(viewPropsUrl);
 251     }
 252 }
 253
 254 DolphinView::Mode DolphinView::mode() const
 255 {
 256     return m_mode;
 257 }
 258
 259 bool DolphinView::showPreview() const
 260 {
 261     return m_showPreview;
 262 }
 263
 264 bool DolphinView::showHiddenFiles() const
 265 {
 266     return m_viewAccessor.dirLister()->showingDotFiles();
 267 }
 268
 269 bool DolphinView::categorizedSorting() const
 270 {
 271     // If all view modes would support categorized sorting, returning
 272     // m_viewAccessor.proxyModel()->isCategorizedModel() would be the way to go. As
 273     // currently only the icons view supports caterized sorting, we remember
 274     // the stored view properties state in m_storedCategorizedSorting and
 275     // return this state. The application takes care to disable the corresponding
 276     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 277     // that this setting is not applied to the current view mode.
 278     return m_storedCategorizedSorting;
 279 }
 280
 281 bool DolphinView::supportsCategorizedSorting() const
 282 {
 283     return m_viewAccessor.supportsCategorizedSorting();
 284 }
 285
 286 void DolphinView::selectAll()
 287 {
 288     QAbstractItemView* view = m_viewAccessor.itemView();
 289     // TODO: there seems to be a bug in QAbstractItemView::selectAll(); if
 290     // the Ctrl-key is pressed (e. g. for Ctrl+A), selectAll() inverts the
 291     // selection instead of selecting all items. This is bypassed for KDE 4.0
 292     // by invoking clearSelection() first.
 293     view->clearSelection();
 294     view->selectAll();
 295 }
 296
 297 void DolphinView::invertSelection()
 298 {
 299     QItemSelectionModel* selectionModel = m_viewAccessor.itemView()->selectionModel();
 300     const QAbstractItemModel* itemModel = selectionModel->model();
 301
 302     const QModelIndex topLeft = itemModel->index(0, 0);
 303     const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 304                                                      itemModel->columnCount() - 1);
 305
 306     const QItemSelection selection(topLeft, bottomRight);
 307     selectionModel->select(selection, QItemSelectionModel::Toggle);
 308 }
 309
 310 bool DolphinView::hasSelection() const
 311 {
 312     return m_viewAccessor.itemView()->selectionModel()->hasSelection();
 313 }
 314
 315 void DolphinView::clearSelection()
 316 {
 317     QItemSelectionModel* selModel = m_viewAccessor.itemView()->selectionModel();
 318     const QModelIndex currentIndex = selModel->currentIndex();
 319     selModel->setCurrentIndex(currentIndex, QItemSelectionModel::Current |
 320                                             QItemSelectionModel::Clear);
 321     m_selectedItems.clear();
 322 }
 323
 324 KFileItemList DolphinView::selectedItems() const
 325 {
 326     const QAbstractItemView* view = m_viewAccessor.itemView();
 327
 328     // Our view has a selection, we will map them back to the DolphinModel
 329     // and then fill the KFileItemList.
 330     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 331
 332     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
 333     KFileItemList itemList;
 334
 335     const QModelIndexList indexList = selection.indexes();
 336     foreach (const QModelIndex &index, indexList) {
 337         KFileItem item = m_viewAccessor.dirModel()->itemForIndex(index);
 338         if (!item.isNull()) {
 339             itemList.append(item);
 340         }
 341     }
 342
 343     return itemList;
 344 }
 345
 346 KUrl::List DolphinView::selectedUrls() const
 347 {
 348     KUrl::List urls;
 349     const KFileItemList list = selectedItems();
 350     foreach (const KFileItem &item, list) {
 351         urls.append(item.url());
 352     }
 353     return urls;
 354 }
 355
 356 int DolphinView::selectedItemsCount() const
 357 {
 358     return m_viewAccessor.itemView()->selectionModel()->selectedIndexes().count();
 359 }
 360
 361 void DolphinView::setContentsPosition(int x, int y)
 362 {
 363     QAbstractItemView* view = m_viewAccessor.itemView();
 364     view->horizontalScrollBar()->setValue(x);
 365     view->verticalScrollBar()->setValue(y);
 366
 367     m_loadingDirectory = false;
 368 }
 369
 370 QPoint DolphinView::contentsPosition() const
 371 {
 372     const int x = m_viewAccessor.itemView()->horizontalScrollBar()->value();
 373     const int y = m_viewAccessor.itemView()->verticalScrollBar()->value();
 374     return QPoint(x, y);
 375 }
 376
 377 void DolphinView::setZoomLevel(int level)
 378 {
 379     if (level < ZoomLevelInfo::minimumLevel()) {
 380         level = ZoomLevelInfo::minimumLevel();
 381     } else if (level > ZoomLevelInfo::maximumLevel()) {
 382         level = ZoomLevelInfo::maximumLevel();
 383     }
 384
 385     if (level != zoomLevel()) {
 386         m_controller->setZoomLevel(level);
 387         emit zoomLevelChanged(level);
 388     }
 389 }
 390
 391 int DolphinView::zoomLevel() const
 392 {
 393     return m_controller->zoomLevel();
 394 }
 395
 396 void DolphinView::setSorting(Sorting sorting)
 397 {
 398     if (sorting != this->sorting()) {
 399         updateSorting(sorting);
 400     }
 401 }
 402
 403 DolphinView::Sorting DolphinView::sorting() const
 404 {
 405     return m_viewAccessor.proxyModel()->sorting();
 406 }
 407
 408 void DolphinView::setSortOrder(Qt::SortOrder order)
 409 {
 410     if (sortOrder() != order) {
 411         updateSortOrder(order);
 412     }
 413 }
 414
 415 Qt::SortOrder DolphinView::sortOrder() const
 416 {
 417     return m_viewAccessor.proxyModel()->sortOrder();
 418 }
 419
 420 void DolphinView::setSortFoldersFirst(bool foldersFirst)
 421 {
 422     if (sortFoldersFirst() != foldersFirst) {
 423         updateSortFoldersFirst(foldersFirst);
 424     }
 425 }
 426
 427 bool DolphinView::sortFoldersFirst() const
 428 {
 429     return m_viewAccessor.proxyModel()->sortFoldersFirst();
 430 }
 431
 432 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 433 {
 434     const KUrl viewPropsUrl = rootUrl();
 435     ViewProperties props(viewPropsUrl);
 436     props.setAdditionalInfo(info);
 437     m_viewAccessor.itemDelegate()->setShowInformation(info);
 438
 439     emit additionalInfoChanged();
 440
 441     if (m_viewAccessor.reloadOnAdditionalInfoChange()) {
 442         loadDirectory(viewPropsUrl);
 443     }
 444 }
 445
 446 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 447 {
 448     return m_viewAccessor.itemDelegate()->showInformation();
 449 }
 450
 451 void DolphinView::reload()
 452 {
 453     setUrl(url());
 454     loadDirectory(url(), true);
 455 }
 456
 457 void DolphinView::refresh()
 458 {
 459     m_ignoreViewProperties = false;
 460
 461     const bool oldActivationState = m_active;
 462     const int oldZoomLevel = m_controller->zoomLevel();
 463     m_active = true;
 464
 465     createView();
 466     applyViewProperties();
 467     reload();
 468
 469     setActive(oldActivationState);
 470     updateZoomLevel(oldZoomLevel);
 471 }
 472
 473 void DolphinView::updateView(const KUrl& url, const KUrl& rootUrl)
 474 {
 475     Q_UNUSED(rootUrl); // TODO: remove after columnview-cleanup has been finished
 476
 477     if (m_controller->url() == url) {
 478         return;
 479     }
 480
 481     m_controller->setUrl(url); // emits urlChanged, which we forward
 482     m_viewAccessor.prepareUrlChange(url);
 483     applyViewProperties();
 484     loadDirectory(url);
 485
 486     // When changing the URL there is no need to keep the version
 487     // data of the previous URL.
 488     m_viewAccessor.dirModel()->clearVersionData();
 489
 490     emit startedPathLoading(url);
 491 }
 492
 493 void DolphinView::setNameFilter(const QString& nameFilter)
 494 {
 495     m_controller->setNameFilter(nameFilter);
 496 }
 497
 498 void DolphinView::calculateItemCount(int& fileCount,
 499                                      int& folderCount,
 500                                      KIO::filesize_t& totalFileSize) const
 501 {
 502     foreach (const KFileItem& item, m_viewAccessor.dirLister()->items()) {
 503         if (item.isDir()) {
 504             ++folderCount;
 505         } else {
 506             ++fileCount;
 507             totalFileSize += item.size();
 508         }
 509     }
 510 }
 511
 512 QString DolphinView::statusBarText() const
 513 {
 514     QString text;
 515     int folderCount = 0;
 516     int fileCount = 0;
 517     KIO::filesize_t totalFileSize = 0;
 518
 519     if (hasSelection()) {
 520         // give a summary of the status of the selected files
 521         const KFileItemList list = selectedItems();
 522         if (list.isEmpty()) {
 523             // when an item is triggered, it is temporary selected but selectedItems()
 524             // will return an empty list
 525             return text;
 526         }
 527
 528         KFileItemList::const_iterator it = list.begin();
 529         const KFileItemList::const_iterator end = list.end();
 530         while (it != end) {
 531             const KFileItem& item = *it;
 532             if (item.isDir()) {
 533                 ++folderCount;
 534             } else {
 535                 ++fileCount;
 536                 totalFileSize += item.size();
 537             }
 538             ++it;
 539         }
 540
 541         if (folderCount + fileCount == 1) {
 542             // if only one item is selected, show the filename
 543             const QString name = list.first().name();
 544             text = (folderCount == 1) ? i18nc("@info:status", "<filename>%1</filename> selected", name) :
 545                                         i18nc("@info:status", "<filename>%1</filename> selected (%2)",
 546                                               name, KIO::convertSize(totalFileSize));
 547         } else {
 548             // at least 2 items are selected
 549             const QString foldersText = i18ncp("@info:status", "1 Folder selected", "%1 Folders selected", folderCount);
 550             const QString filesText = i18ncp("@info:status", "1 File selected", "%1 Files selected", fileCount);
 551             if ((folderCount > 0) && (fileCount > 0)) {
 552                 text = i18nc("@info:status folders, files (size)", "%1, %2 (%3)",
 553                              foldersText, filesText, KIO::convertSize(totalFileSize));
 554             } else if (fileCount > 0) {
 555                 text = i18nc("@info:status files (size)", "%1 (%2)", filesText, KIO::convertSize(totalFileSize));
 556             } else {
 557                 Q_ASSERT(folderCount > 0);
 558                 text = foldersText;
 559             }
 560         }
 561     } else {
 562         calculateItemCount(fileCount, folderCount, totalFileSize);
 563         text = KIO::itemsSummaryString(fileCount + folderCount,
 564                                        fileCount, folderCount,
 565                                        totalFileSize, true);
 566     }
 567
 568     return text;
 569 }
 570
 571 QList<QAction*> DolphinView::versionControlActions(const KFileItemList& items) const
 572 {
 573     return items.isEmpty()
 574            ? m_versionControlObserver->contextMenuActions(url().path(KUrl::AddTrailingSlash))
 575            : m_versionControlObserver->contextMenuActions(items);
 576 }
 577
 578 void DolphinView::setUrl(const KUrl& url)
 579 {
 580     m_newFileNames.clear();
 581     updateView(url, KUrl());
 582 }
 583
 584 void DolphinView::changeSelection(const KFileItemList& selection)
 585 {
 586     clearSelection();
 587     if (selection.isEmpty()) {
 588         return;
 589     }
 590     const KUrl& baseUrl = url();
 591     KUrl url;
 592     QItemSelection newSelection;
 593     foreach(const KFileItem& item, selection) {
 594         url = item.url().upUrl();
 595         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 596             QModelIndex index = m_viewAccessor.proxyModel()->mapFromSource(m_viewAccessor.dirModel()->indexForItem(item));
 597             newSelection.select(index, index);
 598         }
 599     }
 600     m_viewAccessor.itemView()->selectionModel()->select(newSelection,
 601                                          QItemSelectionModel::ClearAndSelect
 602                                          | QItemSelectionModel::Current);
 603 }
 604
 605 void DolphinView::renameSelectedItems()
 606 {
 607     KFileItemList items = selectedItems();
 608     const int itemCount = items.count();
 609     if (itemCount < 1) {
 610         return;
 611     }
 612
 613     if (itemCount > 1) {
 614         // More than one item has been selected for renaming. Open
 615         // a rename dialog and rename all items afterwards.
 616         QPointer<RenameDialog> dialog = new RenameDialog(this, items);
 617         if (dialog->exec() == QDialog::Rejected) {
 618             delete dialog;
 619             return;
 620         }
 621
 622         const QString newName = dialog->newName();
 623         if (newName.isEmpty()) {
 624             emit errorMessage(dialog->errorString());
 625             delete dialog;
 626             return;
 627         }
 628         delete dialog;
 629
 630         // the selection would be invalid after renaming the items, so just clear
 631         // it before
 632         clearSelection();
 633
 634         // TODO: check how this can be integrated into KIO::FileUndoManager/KonqOperations
 635         // as one operation instead of n rename operations like it is done now...
 636         Q_ASSERT(newName.contains('#'));
 637
 638         // currently the items are sorted by the selection order, resort
 639         // them by the file name
 640         qSort(items.begin(), items.end(), lessThan);
 641
 642         // iterate through all selected items and rename them...
 643         int index = 1;
 644         foreach (const KFileItem& item, items) {
 645             const KUrl& oldUrl = item.url();
 646             QString number;
 647             number.setNum(index++);
 648
 649             QString name = newName;
 650             name.replace('#', number);
 651
 652             if (oldUrl.fileName() != name) {
 653                 KUrl newUrl = oldUrl;
 654                 newUrl.setFileName(name);
 655                 KonqOperations::rename(this, oldUrl, newUrl);
 656             }
 657         }
 658     } else if (DolphinSettings::instance().generalSettings()->renameInline()) {
 659         Q_ASSERT(itemCount == 1);
 660         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForItem(items.first());
 661         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
 662         m_viewAccessor.itemView()->edit(proxyIndex);
 663     } else {
 664         Q_ASSERT(itemCount == 1);
 665
 666         QPointer<RenameDialog> dialog = new RenameDialog(this, items);
 667         if (dialog->exec() == QDialog::Rejected) {
 668             delete dialog;
 669             return;
 670         }
 671
 672         const QString newName = dialog->newName();
 673         if (newName.isEmpty()) {
 674             emit errorMessage(dialog->errorString());
 675             delete dialog;
 676             return;
 677         }
 678         delete dialog;
 679
 680         const KUrl& oldUrl = items.first().url();
 681         KUrl newUrl = oldUrl;
 682         newUrl.setFileName(newName);
 683         KonqOperations::rename(this, oldUrl, newUrl);
 684     }
 685
 686     // assure that the current index remains visible when KDirLister
 687     // will notify the view about changed items
 688     m_assureVisibleCurrentIndex = true;
 689 }
 690
 691 void DolphinView::trashSelectedItems()
 692 {
 693     const KUrl::List list = simplifiedSelectedUrls();
 694     KonqOperations::del(this, KonqOperations::TRASH, list);
 695 }
 696
 697 void DolphinView::deleteSelectedItems()
 698 {
 699     const KUrl::List list = simplifiedSelectedUrls();
 700     const bool del = KonqOperations::askDeleteConfirmation(list,
 701                      KonqOperations::DEL,
 702                      KonqOperations::DEFAULT_CONFIRMATION,
 703                      this);
 704
 705     if (del) {
 706         KIO::Job* job = KIO::del(list);
 707         connect(job, SIGNAL(result(KJob*)),
 708                 this, SLOT(slotDeleteFileFinished(KJob*)));
 709     }
 710 }
 711
 712 void DolphinView::cutSelectedItems()
 713 {
 714     QMimeData* mimeData = selectionMimeData();
 715     KonqMimeData::addIsCutSelection(mimeData, true);
 716     QApplication::clipboard()->setMimeData(mimeData);
 717 }
 718
 719 void DolphinView::copySelectedItems()
 720 {
 721     QMimeData* mimeData = selectionMimeData();
 722     QApplication::clipboard()->setMimeData(mimeData);
 723 }
 724
 725 void DolphinView::paste()
 726 {
 727     pasteToUrl(url());
 728 }
 729
 730 void DolphinView::pasteIntoFolder()
 731 {
 732     const KFileItemList items = selectedItems();
 733     if ((items.count() == 1) && items.first().isDir()) {
 734         pasteToUrl(items.first().url());
 735     }
 736 }
 737
 738 void DolphinView::setShowPreview(bool show)
 739 {
 740     if (m_showPreview == show) {
 741         return;
 742     }
 743
 744     const KUrl viewPropsUrl = rootUrl();
 745     ViewProperties props(viewPropsUrl);
 746     props.setShowPreview(show);
 747
 748     m_showPreview = show;
 749     const int oldZoomLevel = m_controller->zoomLevel();
 750     emit showPreviewChanged();
 751
 752     // Enabling or disabling the preview might change the icon size of the view.
 753     // As the view does not emit a signal when the icon size has been changed,
 754     // the used zoom level of the controller must be adjusted manually:
 755     updateZoomLevel(oldZoomLevel);
 756 }
 757
 758 void DolphinView::setShowHiddenFiles(bool show)
 759 {
 760     if (m_viewAccessor.dirLister()->showingDotFiles() == show) {
 761         return;
 762     }
 763
 764     const KUrl viewPropsUrl = rootUrl();
 765     ViewProperties props(viewPropsUrl);
 766     props.setShowHiddenFiles(show);
 767
 768     m_viewAccessor.dirLister()->setShowingDotFiles(show);
 769     emit showHiddenFilesChanged();
 770
 771     loadDirectory(viewPropsUrl);
 772 }
 773
 774 void DolphinView::setCategorizedSorting(bool categorized)
 775 {
 776     if (categorized == categorizedSorting()) {
 777         return;
 778     }
 779
 780     // setCategorizedSorting(true) may only get invoked
 781     // if the view supports categorized sorting
 782     Q_ASSERT(!categorized || supportsCategorizedSorting());
 783
 784     ViewProperties props(rootUrl());
 785     props.setCategorizedSorting(categorized);
 786     props.save();
 787
 788     m_storedCategorizedSorting = categorized;
 789     m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 790
 791     emit categorizedSortingChanged();
 792 }
 793
 794 void DolphinView::toggleSortOrder()
 795 {
 796     const Qt::SortOrder order = (sortOrder() == Qt::AscendingOrder) ?
 797                                 Qt::DescendingOrder :
 798                                 Qt::AscendingOrder;
 799     setSortOrder(order);
 800 }
 801
 802 void DolphinView::toggleSortFoldersFirst()
 803 {
 804     setSortFoldersFirst(!sortFoldersFirst());
 805 }
 806
 807 void DolphinView::toggleAdditionalInfo(QAction* action)
 808 {
 809     const KFileItemDelegate::Information info =
 810         static_cast<KFileItemDelegate::Information>(action->data().toInt());
 811
 812     KFileItemDelegate::InformationList list = additionalInfo();
 813
 814     const bool show = action->isChecked();
 815
 816     const int index = list.indexOf(info);
 817     const bool containsInfo = (index >= 0);
 818     if (show && !containsInfo) {
 819         list.append(info);
 820         setAdditionalInfo(list);
 821     } else if (!show && containsInfo) {
 822         list.removeAt(index);
 823         setAdditionalInfo(list);
 824         Q_ASSERT(list.indexOf(info) < 0);
 825     }
 826 }
 827
 828 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 829 {
 830     QWidget::mouseReleaseEvent(event);
 831     setActive(true);
 832 }
 833
 834 void DolphinView::wheelEvent(QWheelEvent* event)
 835 {
 836     if (event->modifiers() & Qt::ControlModifier) {
 837         const int delta = event->delta();
 838         const int level = zoomLevel();
 839         if (delta > 0) {
 840             setZoomLevel(level + 1);
 841         } else if (delta < 0) {
 842             setZoomLevel(level - 1);
 843         }
 844         event->accept();
 845     }
 846 }
 847
 848 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 849 {
 850     switch (event->type()) {
 851     case QEvent::FocusIn:
 852         if (watched == m_viewAccessor.itemView()) {
 853             m_controller->requestActivation();
 854         }
 855         break;
 856
 857     case QEvent::MouseButtonPress:
 858         if ((watched == m_viewAccessor.itemView()->viewport()) && (m_expandedDragSource != 0)) {
 859             // Listening to a mousebutton press event to delete expanded views is a
 860             // workaround, as it seems impossible for the FolderExpander to know when
 861             // a dragging outside a view has been finished. However it works quite well:
 862             // A mousebutton press event indicates that a drag operation must be
 863             // finished already.
 864             m_expandedDragSource->deleteLater();
 865             m_expandedDragSource = 0;
 866         }
 867         break;
 868
 869     case QEvent::DragEnter:
 870         if (watched == m_viewAccessor.itemView()->viewport()) {
 871             setActive(true);
 872         }
 873         break;
 874
 875     case QEvent::KeyPress:
 876         if (watched == m_viewAccessor.itemView()) {
 877             // clear the selection when Escape has been pressed
 878             QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
 879             if (keyEvent->key() == Qt::Key_Escape) {
 880                 clearSelection();
 881             }
 882         }
 883         break;
 884
 885     default:
 886         break;
 887     }
 888
 889     return QWidget::eventFilter(watched, event);
 890 }
 891
 892 void DolphinView::activate()
 893 {
 894     setActive(true);
 895 }
 896
 897 void DolphinView::triggerItem(const KFileItem& item)
 898 {
 899     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 900     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 901         // items are selected by the user, hence don't trigger the
 902         // item specified by 'index'
 903         return;
 904     }
 905
 906     // TODO: the m_isContextMenuOpen check is a workaround for Qt-issue 207192
 907     if (item.isNull() || m_isContextMenuOpen) {
 908         return;
 909     }
 910
 911     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 912 }
 913
 914 void DolphinView::emitDelayedSelectionChangedSignal()
 915 {
 916     // Invoke emitSelectionChangedSignal() with a delay of 300 ms. This assures
 917     // that fast selection changes don't result in expensive operations to
 918     // collect all file items for the signal (see DolphinView::selectedItems()).
 919     m_selectionChangedTimer->start();
 920 }
 921
 922 void DolphinView::emitSelectionChangedSignal()
 923 {
 924     emit selectionChanged(DolphinView::selectedItems());
 925 }
 926
 927 void DolphinView::openContextMenu(const QPoint& pos,
 928                                   const QList<QAction*>& customActions)
 929 {
 930     KFileItem item;
 931     const QModelIndex index = m_viewAccessor.itemView()->indexAt(pos);
 932     if (index.isValid() && (index.column() == DolphinModel::Name)) {
 933         const QModelIndex dolphinModelIndex = m_viewAccessor.proxyModel()->mapToSource(index);
 934         item = m_viewAccessor.dirModel()->itemForIndex(dolphinModelIndex);
 935     }
 936
 937     m_isContextMenuOpen = true; // TODO: workaround for Qt-issue 207192
 938     emit requestContextMenu(item, url(), customActions);
 939     m_isContextMenuOpen = false;
 940 }
 941
 942 void DolphinView::dropUrls(const KFileItem& destItem,
 943                            const KUrl& destPath,
 944                            QDropEvent* event)
 945 {
 946     addNewFileNames(event->mimeData());
 947     DragAndDropHelper::instance().dropUrls(destItem, destPath, event, this);
 948 }
 949
 950 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 951 {
 952     ViewProperties props(rootUrl());
 953     props.setSorting(sorting);
 954
 955     m_viewAccessor.proxyModel()->setSorting(sorting);
 956
 957     emit sortingChanged(sorting);
 958 }
 959
 960 void DolphinView::updateSortOrder(Qt::SortOrder order)
 961 {
 962     ViewProperties props(rootUrl());
 963     props.setSortOrder(order);
 964
 965     m_viewAccessor.proxyModel()->setSortOrder(order);
 966
 967     emit sortOrderChanged(order);
 968 }
 969
 970 void DolphinView::updateSortFoldersFirst(bool foldersFirst)
 971 {
 972     ViewProperties props(rootUrl());
 973     props.setSortFoldersFirst(foldersFirst);
 974
 975     m_viewAccessor.proxyModel()->setSortFoldersFirst(foldersFirst);
 976
 977     emit sortFoldersFirstChanged(foldersFirst);
 978 }
 979
 980 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 981 {
 982     ViewProperties props(rootUrl());
 983     props.setAdditionalInfo(info);
 984     props.save();
 985
 986     m_viewAccessor.itemDelegate()->setShowInformation(info);
 987
 988     emit additionalInfoChanged();
 989 }
 990
 991 void DolphinView::updateAdditionalInfoActions(KActionCollection* collection)
 992 {
 993     const bool enable = (m_mode == DolphinView::DetailsView) ||
 994                         (m_mode == DolphinView::IconsView);
 995
 996     QAction* showSizeInfo = collection->action("show_size_info");
 997     QAction* showDateInfo = collection->action("show_date_info");
 998     QAction* showPermissionsInfo = collection->action("show_permissions_info");
 999     QAction* showOwnerInfo = collection->action("show_owner_info");
1000     QAction* showGroupInfo = collection->action("show_group_info");
1001     QAction* showMimeInfo = collection->action("show_mime_info");
1002
1003     showSizeInfo->setChecked(false);
1004     showDateInfo->setChecked(false);
1005     showPermissionsInfo->setChecked(false);
1006     showOwnerInfo->setChecked(false);
1007     showGroupInfo->setChecked(false);
1008     showMimeInfo->setChecked(false);
1009
1010     showSizeInfo->setEnabled(enable);
1011     showDateInfo->setEnabled(enable);
1012     showPermissionsInfo->setEnabled(enable);
1013     showOwnerInfo->setEnabled(enable);
1014     showGroupInfo->setEnabled(enable);
1015     showMimeInfo->setEnabled(enable);
1016
1017     foreach (KFileItemDelegate::Information info, m_viewAccessor.itemDelegate()->showInformation()) {
1018         switch (info) {
1019         case KFileItemDelegate::Size:
1020             showSizeInfo->setChecked(true);
1021             break;
1022         case KFileItemDelegate::ModificationTime:
1023             showDateInfo->setChecked(true);
1024             break;
1025         case KFileItemDelegate::Permissions:
1026             showPermissionsInfo->setChecked(true);
1027             break;
1028         case KFileItemDelegate::Owner:
1029             showOwnerInfo->setChecked(true);
1030             break;
1031         case KFileItemDelegate::OwnerAndGroup:
1032             showGroupInfo->setChecked(true);
1033             break;
1034         case KFileItemDelegate::FriendlyMimeType:
1035             showMimeInfo->setChecked(true);
1036             break;
1037         default:
1038             break;
1039         }
1040     }
1041 }
1042
1043 QPair<bool, QString> DolphinView::pasteInfo() const
1044 {
1045     return KonqOperations::pasteInfo(url());
1046 }
1047
1048 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
1049 {
1050     m_tabsForFiles = tabsForFiles;
1051 }
1052
1053 bool DolphinView::isTabsForFilesEnabled() const
1054 {
1055     return m_tabsForFiles;
1056 }
1057
1058 void DolphinView::activateItem(const KUrl& url)
1059 {
1060     m_activeItemUrl = url;
1061 }
1062
1063 bool DolphinView::itemsExpandable() const
1064 {
1065     return m_viewAccessor.itemsExpandable();
1066 }
1067
1068 void DolphinView::deleteWhenNotDragSource(QAbstractItemView *view)
1069 {
1070     if (view == 0)
1071         return;
1072
1073     if (DragAndDropHelper::instance().isDragSource(view)) {
1074         // We must store for later deletion.
1075         if (m_expandedDragSource != 0) {
1076             // The old stored view is obviously not the drag source anymore.
1077             m_expandedDragSource->deleteLater();
1078             m_expandedDragSource = 0;
1079         }
1080         view->hide();
1081         m_expandedDragSource = view;
1082     }
1083     else {
1084         view->deleteLater();
1085     }
1086 }
1087
1088 void DolphinView::observeCreatedItem(const KUrl& url)
1089 {
1090     m_createdItemUrl = url;
1091     connect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
1092             this, SLOT(selectAndScrollToCreatedItem()));
1093 }
1094
1095 void DolphinView::selectAndScrollToCreatedItem()
1096 {
1097     const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_createdItemUrl);
1098     if (dirIndex.isValid()) {
1099         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1100         m_viewAccessor.itemView()->setCurrentIndex(proxyIndex);
1101     }
1102
1103     disconnect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
1104                this, SLOT(selectAndScrollToCreatedItem()));
1105     m_createdItemUrl = KUrl();
1106 }
1107
1108 void DolphinView::restoreSelection()
1109 {
1110     disconnect(m_viewAccessor.dirLister(), SIGNAL(completed()), this, SLOT(restoreSelection()));
1111     changeSelection(m_selectedItems);
1112 }
1113
1114 void DolphinView::emitContentsMoved()
1115 {
1116     // only emit the contents moved signal if no directory loading is ongoing
1117     // (this would reset the contents position always to (0, 0))
1118     if (!m_loadingDirectory) {
1119         const QPoint pos(contentsPosition());
1120         emit contentsMoved(pos.x(), pos.y());
1121     }
1122 }
1123
1124 void DolphinView::showHoverInformation(const KFileItem& item)
1125 {
1126     emit requestItemInfo(item);
1127 }
1128
1129 void DolphinView::clearHoverInformation()
1130 {
1131     emit requestItemInfo(KFileItem());
1132 }
1133
1134 void DolphinView::slotDeleteFileFinished(KJob* job)
1135 {
1136     if (job->error() == 0) {
1137         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1138     } else if (job->error() != KIO::ERR_USER_CANCELED) {
1139         emit errorMessage(job->errorString());
1140     }
1141 }
1142
1143 void DolphinView::slotRequestUrlChange(const KUrl& url)
1144 {
1145     emit requestUrlChange(url);
1146     m_controller->setUrl(url);
1147 }
1148
1149 void DolphinView::slotDirListerCompleted()
1150 {
1151     if (!m_activeItemUrl.isEmpty()) {
1152         // assure that the current item remains visible
1153         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_activeItemUrl);
1154         if (dirIndex.isValid()) {
1155             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1156             QAbstractItemView* view = m_viewAccessor.itemView();
1157             const bool clearSelection = !hasSelection();
1158             view->setCurrentIndex(proxyIndex);
1159             if (clearSelection) {
1160                 view->clearSelection();
1161             }
1162             m_activeItemUrl.clear();
1163         }
1164     }
1165
1166     if (!m_newFileNames.isEmpty()) {
1167         // select all newly added items created by a paste operation or
1168         // a drag & drop operation
1169         const int rowCount = m_viewAccessor.proxyModel()->rowCount();
1170         QItemSelection selection;
1171         for (int row = 0; row < rowCount; ++row) {
1172             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->index(row, 0);
1173             const QModelIndex dirIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
1174             const KUrl url = m_viewAccessor.dirModel()->itemForIndex(dirIndex).url();
1175             if (m_newFileNames.contains(url.fileName())) {
1176                 selection.merge(QItemSelection(proxyIndex, proxyIndex), QItemSelectionModel::Select);
1177             }
1178         }
1179         m_viewAccessor.itemView()->selectionModel()->select(selection, QItemSelectionModel::Select);
1180
1181         m_newFileNames.clear();
1182     }
1183 }
1184
1185 void DolphinView::slotRefreshItems()
1186 {
1187     if (m_assureVisibleCurrentIndex) {
1188         m_assureVisibleCurrentIndex = false;
1189         m_viewAccessor.itemView()->scrollTo(m_viewAccessor.itemView()->currentIndex());
1190     }
1191 }
1192
1193 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1194 {
1195     if (!url.isValid()) {
1196         const QString location(url.pathOrUrl());
1197         if (location.isEmpty()) {
1198             emit errorMessage(i18nc("@info:status", "The location is empty."));
1199         } else {
1200             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1201         }
1202         return;
1203     }
1204
1205     m_loadingDirectory = true;
1206
1207     if (reload) {
1208         m_selectedItems = selectedItems();
1209         connect(m_viewAccessor.dirLister(), SIGNAL(completed()), this, SLOT(restoreSelection()));
1210     }
1211
1212     m_viewAccessor.dirLister()->stop();
1213     m_viewAccessor.dirLister()->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
1214 }
1215
1216 void DolphinView::applyViewProperties()
1217 {
1218     if (m_ignoreViewProperties) {
1219         return;
1220     }
1221
1222     const ViewProperties props(rootUrl());
1223
1224     const Mode mode = props.viewMode();
1225     if (m_mode != mode) {
1226         const int oldZoomLevel = m_controller->zoomLevel();
1227
1228         m_mode = mode;
1229         createView();
1230         emit modeChanged();
1231
1232         updateZoomLevel(oldZoomLevel);
1233     }
1234     if (m_viewAccessor.itemView() == 0) {
1235         createView();
1236     }
1237     Q_ASSERT(m_viewAccessor.itemView() != 0);
1238     Q_ASSERT(m_viewAccessor.itemDelegate() != 0);
1239
1240     const bool showHiddenFiles = props.showHiddenFiles();
1241     if (showHiddenFiles != m_viewAccessor.dirLister()->showingDotFiles()) {
1242         m_viewAccessor.dirLister()->setShowingDotFiles(showHiddenFiles);
1243         emit showHiddenFilesChanged();
1244     }
1245
1246     m_storedCategorizedSorting = props.categorizedSorting();
1247     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1248     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
1249         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
1250         emit categorizedSortingChanged();
1251     }
1252
1253     const DolphinView::Sorting sorting = props.sorting();
1254     if (sorting != m_viewAccessor.proxyModel()->sorting()) {
1255         m_viewAccessor.proxyModel()->setSorting(sorting);
1256         emit sortingChanged(sorting);
1257     }
1258
1259     const Qt::SortOrder sortOrder = props.sortOrder();
1260     if (sortOrder != m_viewAccessor.proxyModel()->sortOrder()) {
1261         m_viewAccessor.proxyModel()->setSortOrder(sortOrder);
1262         emit sortOrderChanged(sortOrder);
1263     }
1264
1265     const bool sortFoldersFirst = props.sortFoldersFirst();
1266     if (sortFoldersFirst != m_viewAccessor.proxyModel()->sortFoldersFirst()) {
1267         m_viewAccessor.proxyModel()->setSortFoldersFirst(sortFoldersFirst);
1268         emit sortFoldersFirstChanged(sortFoldersFirst);
1269     }
1270
1271     KFileItemDelegate::InformationList info = props.additionalInfo();
1272     if (info != m_viewAccessor.itemDelegate()->showInformation()) {
1273         m_viewAccessor.itemDelegate()->setShowInformation(info);
1274         emit additionalInfoChanged();
1275     }
1276
1277     const bool showPreview = props.showPreview();
1278     if (showPreview != m_showPreview) {
1279         m_showPreview = showPreview;
1280         const int oldZoomLevel = m_controller->zoomLevel();
1281         emit showPreviewChanged();
1282
1283         // Enabling or disabling the preview might change the icon size of the view.
1284         // As the view does not emit a signal when the icon size has been changed,
1285         // the used zoom level of the controller must be adjusted manually:
1286         updateZoomLevel(oldZoomLevel);
1287     }
1288
1289     if (DolphinSettings::instance().generalSettings()->globalViewProps()) {
1290         // During the lifetime of a DolphinView instance the global view properties
1291         // should not be changed. This allows e. g. to split a view and use different
1292         // view properties for each view.
1293         m_ignoreViewProperties = true;
1294     }
1295 }
1296
1297 void DolphinView::createView()
1298 {
1299     deleteView();
1300     Q_ASSERT(m_viewAccessor.itemView() == 0);
1301     m_viewAccessor.createView(this, m_controller, m_mode);
1302
1303     QAbstractItemView* view = m_viewAccessor.itemView();
1304     Q_ASSERT(view != 0);
1305     view->installEventFilter(this);
1306     view->viewport()->installEventFilter(this);
1307     setFocusProxy(view);
1308
1309     /* TODO: enable folder expanding again later
1310
1311     if (m_mode != ColumnView) {
1312         // Give the view the ability to auto-expand its directories on hovering
1313         // (the column view takes care about this itself). If the details view
1314         // uses expandable folders, the auto-expanding should be used always.
1315         FolderExpander* folderExpander = new FolderExpander(view, m_viewAccessor.proxyModel());
1316         folderExpander->setEnabled(m_viewAccessor.hasExpandableFolders());
1317         connect(folderExpander, SIGNAL(enterDir(const QModelIndex&)),
1318                 m_controller, SLOT(triggerItem(const QModelIndex&)));
1319
1320     }
1321     else {
1322         // Listen out for requests to delete the current column.
1323         connect(m_viewAccessor.columnsContainer(), SIGNAL(requestColumnDeletion(QAbstractItemView*)),
1324                 this, SLOT(deleteWhenNotDragSource(QAbstractItemView*)));
1325     }*/
1326
1327     m_controller->setItemView(view);
1328
1329     m_selectionChangedTimer = new QTimer(this);
1330     m_selectionChangedTimer->setSingleShot(true);
1331     m_selectionChangedTimer->setInterval(300);
1332     connect(m_selectionChangedTimer, SIGNAL(timeout()),
1333             this, SLOT(emitSelectionChangedSignal()));
1334
1335     // When changing the view mode, the selection is lost due to reinstantiating
1336     // a new item view with a custom selection model. Pass the ownership of the
1337     // selection model to DolphinView, so that it can be shared by all item views.
1338     if (m_selectionModel != 0) {
1339         view->setSelectionModel(m_selectionModel);
1340     } else {
1341         m_selectionModel = view->selectionModel();
1342     }
1343     m_selectionModel->setParent(this);
1344
1345     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
1346
1347     m_versionControlObserver = new VersionControlObserver(view);
1348     connect(m_versionControlObserver, SIGNAL(infoMessage(const QString&)),
1349             this, SIGNAL(infoMessage(const QString&)));
1350     connect(m_versionControlObserver, SIGNAL(errorMessage(const QString&)),
1351             this, SIGNAL(errorMessage(const QString&)));
1352     connect(m_versionControlObserver, SIGNAL(operationCompletedMessage(const QString&)),
1353             this, SIGNAL(operationCompletedMessage(const QString&)));
1354
1355     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
1356             this, SLOT(emitDelayedSelectionChangedSignal()));
1357     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
1358             this, SLOT(emitContentsMoved()));
1359     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
1360             this, SLOT(emitContentsMoved()));
1361
1362     m_topLayout->insertWidget(1, m_viewAccessor.layoutTarget());
1363 }
1364
1365 void DolphinView::deleteView()
1366 {
1367     QAbstractItemView* view = m_viewAccessor.itemView();
1368     if (view != 0) {
1369         // It's important to set the keyboard focus to the parent
1370         // before deleting the view: Otherwise when having a split
1371         // view the other view will get the focus and will request
1372         // an activation (see DolphinView::eventFilter()).
1373         setFocusProxy(0);
1374         setFocus();
1375
1376         m_topLayout->removeWidget(view);
1377         view->close();
1378
1379         disconnect(view);
1380         m_controller->disconnect(view);
1381         view->disconnect();
1382
1383         // TODO: move this code into ViewAccessor::deleteView()
1384         deleteWhenNotDragSource(view);
1385         view = 0;
1386
1387         m_viewAccessor.deleteView();
1388     }
1389 }
1390
1391 void DolphinView::pasteToUrl(const KUrl& url)
1392 {
1393     addNewFileNames(QApplication::clipboard()->mimeData());
1394     KonqOperations::doPaste(this, url);
1395 }
1396
1397 void DolphinView::updateZoomLevel(int oldZoomLevel)
1398 {
1399     const int newZoomLevel = ZoomLevelInfo::zoomLevelForIconSize(m_viewAccessor.itemView()->iconSize());
1400     if (oldZoomLevel != newZoomLevel) {
1401         m_controller->setZoomLevel(newZoomLevel);
1402         emit zoomLevelChanged(newZoomLevel);
1403     }
1404 }
1405
1406 KUrl::List DolphinView::simplifiedSelectedUrls() const
1407 {
1408     KUrl::List list = selectedUrls();
1409     if (itemsExpandable() ) {
1410         list = KDirModel::simplifiedUrlList(list);
1411     }
1412     return list;
1413 }
1414
1415 QMimeData* DolphinView::selectionMimeData() const
1416 {
1417     const QAbstractItemView* view = m_viewAccessor.itemView();
1418     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
1419     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
1420     return m_viewAccessor.dirModel()->mimeData(selection.indexes());
1421 }
1422
1423 void DolphinView::addNewFileNames(const QMimeData* mimeData)
1424 {
1425     const KUrl::List urls = KUrl::List::fromMimeData(mimeData);
1426     foreach (const KUrl& url, urls) {
1427         m_newFileNames.insert(url.fileName());
1428     }
1429 }
1430
1431 DolphinView::ViewAccessor::ViewAccessor(DolphinSortFilterProxyModel* proxyModel) :
1432     m_iconsView(0),
1433     m_detailsView(0),
1434     m_columnsContainer(0),
1435     m_proxyModel(proxyModel)
1436 {
1437 }
1438
1439 void DolphinView::ViewAccessor::createView(QWidget* parent,
1440                                            DolphinController* controller,
1441                                            Mode mode)
1442 {
1443     Q_ASSERT(itemView() == 0);
1444
1445     switch (mode) {
1446     case IconsView:
1447         m_iconsView = new DolphinIconsView(parent, controller, m_proxyModel);
1448         break;
1449
1450     case DetailsView:
1451         m_detailsView = new DolphinDetailsView(parent, controller, m_proxyModel);
1452         break;
1453
1454     case ColumnView:
1455         m_columnsContainer = new DolphinColumnViewContainer(parent, controller);
1456         break;
1457
1458     default:
1459         Q_ASSERT(false);
1460     }
1461 }
1462
1463 void DolphinView::ViewAccessor::deleteView()
1464 {
1465     // TODO: Move the deleteWhenNotDragSource() code into the view
1466     // accessor, so that creating and deleting is fully done by
1467     // the view accessor.
1468     m_iconsView = 0;
1469     m_detailsView = 0;
1470
1471     m_columnsContainer->deleteLater();
1472     m_columnsContainer = 0;
1473 }
1474
1475
1476 void DolphinView::ViewAccessor::prepareUrlChange(const KUrl& url)
1477 {
1478     if (m_columnsContainer != 0) {
1479         m_columnsContainer->showColumn(url);
1480     }
1481 }
1482
1483 QAbstractItemView* DolphinView::ViewAccessor::itemView() const
1484 {
1485     if (m_iconsView != 0) {
1486         return m_iconsView;
1487     }
1488
1489     if (m_detailsView != 0) {
1490         return m_detailsView;
1491     }
1492
1493     if (m_columnsContainer != 0) {
1494         return m_columnsContainer->activeColumn();
1495     }
1496
1497     return 0;
1498 }
1499
1500 KFileItemDelegate* DolphinView::ViewAccessor::itemDelegate() const
1501 {
1502     return static_cast<KFileItemDelegate*>(itemView()->itemDelegate());
1503 }
1504
1505 QWidget* DolphinView::ViewAccessor::layoutTarget() const
1506 {
1507     if (m_columnsContainer != 0) {
1508         return m_columnsContainer;
1509     }
1510     return itemView();
1511 }
1512
1513 KUrl DolphinView::ViewAccessor::rootUrl() const
1514 {
1515     return (m_columnsContainer != 0) ? m_columnsContainer->rootUrl() : KUrl();
1516 }
1517
1518 bool DolphinView::ViewAccessor::supportsCategorizedSorting() const
1519 {
1520     return m_iconsView != 0;
1521 }
1522
1523 bool DolphinView::ViewAccessor::hasExpandableFolders() const
1524 {
1525     const DolphinSettings& settings = DolphinSettings::instance();
1526     return settings.generalSettings()->autoExpandFolders() ||
1527            ((m_detailsView != 0) && settings.detailsModeSettings()->expandableFolders());
1528 }
1529
1530 bool DolphinView::ViewAccessor::itemsExpandable() const
1531 {
1532     return (m_detailsView != 0) && m_detailsView->itemsExpandable();
1533 }
1534
1535 bool DolphinView::ViewAccessor::reloadOnAdditionalInfoChange() const
1536 {
1537     // the details view requires no reloading of the directory, as it maps
1538     // the file item delegate info to its columns internally
1539     return m_detailsView != 0;
1540 }
1541
1542
1543 DolphinModel* DolphinView::ViewAccessor::dirModel() const
1544 {
1545     return static_cast<DolphinModel*>(proxyModel()->sourceModel());
1546 }
1547
1548 DolphinSortFilterProxyModel* DolphinView::ViewAccessor::proxyModel() const
1549 {
1550     if (m_columnsContainer != 0) {
1551         return static_cast<DolphinSortFilterProxyModel*>(m_columnsContainer->activeColumn()->model());
1552     }
1553     return m_proxyModel;
1554 }
1555
1556 KDirLister* DolphinView::ViewAccessor::dirLister() const
1557 {
1558     return dirModel()->dirLister();
1559 }
1560
1561 #include "dolphinview.moc"