src/dolphinview.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006-2009 by Peter Penz <peter.penz@gmx.at>             *
   3  *   Copyright (C) 2006 by Gregor Kališnik <gregor@podnapisi.net>          *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  19  ***************************************************************************/
  20
  21 #include "dolphinview.h"
  22
  23 #include <QAbstractItemView>
  24 #include <QApplication>
  25 #include <QClipboard>
  26 #include <QKeyEvent>
  27 #include <QItemSelection>
  28 #include <QBoxLayout>
  29 #include <QTimer>
  30 #include <QScrollBar>
  31
  32 #include <kactioncollection.h>
  33 #include <kcolorscheme.h>
  34 #include <kdirlister.h>
  35 #include <kiconeffect.h>
  36 #include <kfileitem.h>
  37 #include <klocale.h>
  38 #include <kio/deletejob.h>
  39 #include <kio/netaccess.h>
  40 #include <kio/previewjob.h>
  41 #include <kjob.h>
  42 #include <kmenu.h>
  43 #include <kmessagebox.h>
  44 #include <kmimetyperesolver.h>
  45 #include <konq_fileitemcapabilities.h>
  46 #include <konq_operations.h>
  47 #include <konqmimedata.h>
  48 #include <kstringhandler.h>
  49 #include <ktoggleaction.h>
  50 #include <kurl.h>
  51
  52 #include "dolphinmodel.h"
  53 #include "dolphincolumnviewcontainer.h"
  54 #include "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 "renamedialog.h"
  64 #include "settings/dolphinsettings.h"
  65 #include "viewproperties.h"
  66 #include "zoomlevelinfo.h"
  67 #include "dolphindetailsviewexpander.h"
  68
  69 /**
  70  * Helper function for sorting items with qSort() in
  71  * DolphinView::renameSelectedItems().
  72  */
  73 bool lessThan(const KFileItem& item1, const KFileItem& item2)
  74 {
  75     return KStringHandler::naturalCompare(item1.name(), item2.name()) < 0;
  76 }
  77
  78 DolphinView::DolphinView(QWidget* parent,
  79                          const KUrl& url,
  80                          DolphinSortFilterProxyModel* proxyModel) :
  81     QWidget(parent),
  82     m_active(true),
  83     m_showPreview(false),
  84     m_loadingDirectory(false),
  85     m_storedCategorizedSorting(false),
  86     m_tabsForFiles(false),
  87     m_isContextMenuOpen(false),
  88     m_ignoreViewProperties(false),
  89     m_assureVisibleCurrentIndex(false),
  90     m_mode(DolphinView::IconsView),
  91     m_topLayout(0),
  92     m_controller(0),
  93     m_viewAccessor(proxyModel),
  94     m_selectionModel(0),
  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_controller = new DolphinController(this);
 108     m_controller->setUrl(url);
 109
 110     connect(m_controller, SIGNAL(urlChanged(const KUrl&)),
 111             this, SIGNAL(urlChanged(const KUrl&)));
 112     connect(m_controller, SIGNAL(requestUrlChange(const KUrl&)),
 113             this, SLOT(slotRequestUrlChange(const KUrl&)));
 114
 115     connect(m_controller, SIGNAL(requestContextMenu(const QPoint&, const QList<QAction*>&)),
 116             this, SLOT(openContextMenu(const QPoint&, const QList<QAction*>&)));
 117     connect(m_controller, SIGNAL(urlsDropped(const KFileItem&, const KUrl&, QDropEvent*)),
 118             this, SLOT(dropUrls(const KFileItem&, const KUrl&, QDropEvent*)));
 119     connect(m_controller, SIGNAL(sortingChanged(DolphinView::Sorting)),
 120             this, SLOT(updateSorting(DolphinView::Sorting)));
 121     connect(m_controller, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 122             this, SLOT(updateSortOrder(Qt::SortOrder)));
 123     connect(m_controller, SIGNAL(sortFoldersFirstChanged(bool)),
 124             this, SLOT(updateSortFoldersFirst(bool)));
 125     connect(m_controller, SIGNAL(additionalInfoChanged(const KFileItemDelegate::InformationList&)),
 126             this, SLOT(updateAdditionalInfo(const KFileItemDelegate::InformationList&)));
 127     connect(m_controller, SIGNAL(itemTriggered(const KFileItem&)),
 128             this, SLOT(triggerItem(const KFileItem&)));
 129     connect(m_controller, SIGNAL(tabRequested(const KUrl&)),
 130             this, SIGNAL(tabRequested(const KUrl&)));
 131     connect(m_controller, SIGNAL(activated()),
 132             this, SLOT(activate()));
 133     connect(m_controller, SIGNAL(itemEntered(const KFileItem&)),
 134             this, SLOT(showHoverInformation(const KFileItem&)));
 135     connect(m_controller, SIGNAL(viewportEntered()),
 136             this, SLOT(clearHoverInformation()));
 137
 138     KDirLister* dirLister = m_viewAccessor.dirLister();
 139     connect(dirLister, SIGNAL(redirection(KUrl,KUrl)),
 140             this, SLOT(slotRedirection(KUrl,KUrl)));
 141     connect(dirLister, SIGNAL(completed()),
 142             this, SLOT(slotDirListerCompleted()));
 143     connect(dirLister, SIGNAL(refreshItems(const QList<QPair<KFileItem,KFileItem>>&)),
 144             this, SLOT(slotRefreshItems()));
 145
 146     // When a new item has been created by the "Create New..." menu, the item should
 147     // get selected and it must be assured that the item will get visible. As the
 148     // creation is done asynchronously, several signals must be checked:
 149     connect(&DolphinNewMenuObserver::instance(), SIGNAL(itemCreated(const KUrl&)),
 150             this, SLOT(observeCreatedItem(const KUrl&)));
 151
 152     m_selectionChangedTimer = new QTimer(this);
 153     m_selectionChangedTimer->setSingleShot(true);
 154     m_selectionChangedTimer->setInterval(300);
 155     connect(m_selectionChangedTimer, SIGNAL(timeout()),
 156             this, SLOT(emitSelectionChangedSignal()));
 157
 158     applyViewProperties();
 159     m_topLayout->addWidget(m_viewAccessor.itemView());
 160 }
 161
 162 DolphinView::~DolphinView()
 163 {
 164 }
 165
 166 const KUrl& DolphinView::url() const
 167 {
 168     return m_controller->url();
 169 }
 170
 171 KUrl DolphinView::rootUrl() const
 172 {
 173     const KUrl viewUrl = url();
 174     const KUrl root = m_viewAccessor.rootUrl();
 175     if (root.isEmpty() || !root.isParentOf(viewUrl)) {
 176         return viewUrl;
 177     }
 178     return root;
 179 }
 180
 181 void DolphinView::setActive(bool active)
 182 {
 183     if (active == m_active) {
 184         return;
 185     }
 186
 187     m_active = active;
 188
 189     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 190     if (active) {
 191         emitSelectionChangedSignal();
 192     } else {
 193         color.setAlpha(150);
 194     }
 195
 196     QWidget* viewport = m_viewAccessor.itemView()->viewport();
 197     QPalette palette;
 198     palette.setColor(viewport->backgroundRole(), color);
 199     viewport->setPalette(palette);
 200
 201     update();
 202
 203     if (active) {
 204         m_viewAccessor.itemView()->setFocus();
 205         emit activated();
 206     }
 207
 208     m_controller->indicateActivationChange(active);
 209 }
 210
 211 bool DolphinView::isActive() const
 212 {
 213     return m_active;
 214 }
 215
 216 void DolphinView::setMode(Mode mode)
 217 {
 218     if (mode == m_mode) {
 219         return; // the wished mode is already set
 220     }
 221
 222     const int oldZoomLevel = m_controller->zoomLevel();
 223     m_mode = mode;
 224
 225     deleteView();
 226
 227     const KUrl viewPropsUrl = rootUrl();
 228     ViewProperties props(viewPropsUrl);
 229     props.setViewMode(m_mode);
 230     createView();
 231
 232     // the file item delegate has been recreated, apply the current
 233     // additional information manually
 234     const KFileItemDelegate::InformationList infoList = props.additionalInfo();
 235     m_viewAccessor.itemDelegate()->setShowInformation(infoList);
 236     emit additionalInfoChanged();
 237
 238     // Not all view modes support categorized sorting. Adjust the sorting model
 239     // if changing the view mode results in a change of the categorized sorting
 240     // capabilities.
 241     m_storedCategorizedSorting = props.categorizedSorting();
 242     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 243     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
 244         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 245         emit categorizedSortingChanged();
 246     }
 247
 248     emit modeChanged();
 249
 250     updateZoomLevel(oldZoomLevel);
 251     if (m_showPreview) {
 252         loadDirectory(viewPropsUrl);
 253     }
 254 }
 255
 256 DolphinView::Mode DolphinView::mode() const
 257 {
 258     return m_mode;
 259 }
 260
 261 bool DolphinView::showPreview() const
 262 {
 263     return m_showPreview;
 264 }
 265
 266 bool DolphinView::showHiddenFiles() const
 267 {
 268     return m_viewAccessor.dirLister()->showingDotFiles();
 269 }
 270
 271 bool DolphinView::categorizedSorting() const
 272 {
 273     // If all view modes would support categorized sorting, returning
 274     // m_viewAccessor.proxyModel()->isCategorizedModel() would be the way to go. As
 275     // currently only the icons view supports caterized sorting, we remember
 276     // the stored view properties state in m_storedCategorizedSorting and
 277     // return this state. The application takes care to disable the corresponding
 278     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 279     // that this setting is not applied to the current view mode.
 280     return m_storedCategorizedSorting;
 281 }
 282
 283 bool DolphinView::supportsCategorizedSorting() const
 284 {
 285     return m_viewAccessor.supportsCategorizedSorting();
 286 }
 287
 288 bool DolphinView::hasSelection() const
 289 {
 290     const QAbstractItemView* view = m_viewAccessor.itemView();
 291     return view && view->selectionModel()->hasSelection();
 292 }
 293
 294 KFileItemList DolphinView::selectedItems() const
 295 {
 296     const QAbstractItemView* view = m_viewAccessor.itemView();
 297
 298     // Our view has a selection, we will map them back to the DolphinModel
 299     // and then fill the KFileItemList.
 300     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 301
 302     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
 303     KFileItemList itemList;
 304
 305     const QModelIndexList indexList = selection.indexes();
 306     foreach (const QModelIndex &index, indexList) {
 307         KFileItem item = m_viewAccessor.dirModel()->itemForIndex(index);
 308         if (!item.isNull()) {
 309             itemList.append(item);
 310         }
 311     }
 312
 313     return itemList;
 314 }
 315
 316 KUrl::List DolphinView::selectedUrls() const
 317 {
 318     KUrl::List urls;
 319     const KFileItemList list = selectedItems();
 320     foreach (const KFileItem &item, list) {
 321         urls.append(item.url());
 322     }
 323     return urls;
 324 }
 325
 326 int DolphinView::selectedItemsCount() const
 327 {
 328     return m_viewAccessor.itemView()->selectionModel()->selectedIndexes().count();
 329 }
 330
 331 QItemSelectionModel* DolphinView::selectionModel() const
 332 {
 333     return m_viewAccessor.itemView()->selectionModel();
 334 }
 335
 336 void DolphinView::setContentsPosition(int x, int y)
 337 {
 338     QAbstractItemView* view = m_viewAccessor.itemView();
 339     Q_ASSERT(view != 0);
 340     view->horizontalScrollBar()->setValue(x);
 341     view->verticalScrollBar()->setValue(y);
 342
 343     m_loadingDirectory = false;
 344 }
 345
 346 void DolphinView::setRestoredContentsPosition(const QPoint& pos)
 347 {
 348     // TODO: This function is called by DolphinViewContainer.
 349     // If it makes use of DolphinView::restoreState(...) to restore the
 350     // view state in KDE 4.5, this function can be removed.
 351     m_restoredContentsPosition = pos;
 352 }
 353
 354 QPoint DolphinView::contentsPosition() const
 355 {
 356     // TODO: If DolphinViewContainer uses DolphinView::saveState(...) to save the
 357     // view state in KDE 4.5, this code can be moved to DolphinView::saveState.
 358     QAbstractItemView* view = m_viewAccessor.itemView();
 359     Q_ASSERT(view != 0);
 360     const int x = view->horizontalScrollBar()->value();
 361     const int y = view->verticalScrollBar()->value();
 362     return QPoint(x, y);
 363 }
 364
 365 void DolphinView::setZoomLevel(int level)
 366 {
 367     if (level < ZoomLevelInfo::minimumLevel()) {
 368         level = ZoomLevelInfo::minimumLevel();
 369     } else if (level > ZoomLevelInfo::maximumLevel()) {
 370         level = ZoomLevelInfo::maximumLevel();
 371     }
 372
 373     if (level != zoomLevel()) {
 374         m_controller->setZoomLevel(level);
 375         emit zoomLevelChanged(level);
 376     }
 377 }
 378
 379 int DolphinView::zoomLevel() const
 380 {
 381     return m_controller->zoomLevel();
 382 }
 383
 384 void DolphinView::setSorting(Sorting sorting)
 385 {
 386     if (sorting != this->sorting()) {
 387         updateSorting(sorting);
 388     }
 389 }
 390
 391 DolphinView::Sorting DolphinView::sorting() const
 392 {
 393     return m_viewAccessor.proxyModel()->sorting();
 394 }
 395
 396 void DolphinView::setSortOrder(Qt::SortOrder order)
 397 {
 398     if (sortOrder() != order) {
 399         updateSortOrder(order);
 400     }
 401 }
 402
 403 Qt::SortOrder DolphinView::sortOrder() const
 404 {
 405     return m_viewAccessor.proxyModel()->sortOrder();
 406 }
 407
 408 void DolphinView::setSortFoldersFirst(bool foldersFirst)
 409 {
 410     if (sortFoldersFirst() != foldersFirst) {
 411         updateSortFoldersFirst(foldersFirst);
 412     }
 413 }
 414
 415 bool DolphinView::sortFoldersFirst() const
 416 {
 417     return m_viewAccessor.proxyModel()->sortFoldersFirst();
 418 }
 419
 420 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 421 {
 422     const KUrl viewPropsUrl = rootUrl();
 423     ViewProperties props(viewPropsUrl);
 424     props.setAdditionalInfo(info);
 425     m_viewAccessor.itemDelegate()->setShowInformation(info);
 426
 427     emit additionalInfoChanged();
 428
 429     if (m_viewAccessor.reloadOnAdditionalInfoChange()) {
 430         loadDirectory(viewPropsUrl);
 431     }
 432 }
 433
 434 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 435 {
 436     return m_viewAccessor.itemDelegate()->showInformation();
 437 }
 438
 439 void DolphinView::reload()
 440 {
 441     QByteArray viewState;
 442     QDataStream saveStream(&viewState, QIODevice::WriteOnly);
 443     saveState(saveStream);
 444     m_selectedItems = selectedItems();
 445
 446     setUrl(url());
 447     loadDirectory(url(), true);
 448
 449     QDataStream restoreStream(viewState);
 450     restoreState(restoreStream);
 451 }
 452
 453 void DolphinView::refresh()
 454 {
 455     m_ignoreViewProperties = false;
 456
 457     const bool oldActivationState = m_active;
 458     const int oldZoomLevel = m_controller->zoomLevel();
 459     m_active = true;
 460
 461     createView();
 462     applyViewProperties();
 463     reload();
 464
 465     setActive(oldActivationState);
 466     updateZoomLevel(oldZoomLevel);
 467 }
 468
 469 void DolphinView::updateView(const KUrl& url, const KUrl& rootUrl)
 470 {
 471     Q_UNUSED(rootUrl); // TODO: remove after columnview-cleanup has been finished
 472
 473     if (m_controller->url() == url) {
 474         return;
 475     }
 476
 477     m_controller->setUrl(url); // emits urlChanged, which we forward
 478     m_viewAccessor.prepareUrlChange(url);
 479     applyViewProperties();
 480     loadDirectory(url);
 481
 482     // When changing the URL there is no need to keep the version
 483     // data of the previous URL.
 484     m_viewAccessor.dirModel()->clearVersionData();
 485
 486     emit startedPathLoading(url);
 487 }
 488
 489 void DolphinView::setNameFilter(const QString& nameFilter)
 490 {
 491     m_controller->setNameFilter(nameFilter);
 492 }
 493
 494 void DolphinView::calculateItemCount(int& fileCount,
 495                                      int& folderCount,
 496                                      KIO::filesize_t& totalFileSize) const
 497 {
 498     foreach (const KFileItem& item, m_viewAccessor.dirLister()->items()) {
 499         if (item.isDir()) {
 500             ++folderCount;
 501         } else {
 502             ++fileCount;
 503             totalFileSize += item.size();
 504         }
 505     }
 506 }
 507
 508 QString DolphinView::statusBarText() const
 509 {
 510     QString text;
 511     int folderCount = 0;
 512     int fileCount = 0;
 513     KIO::filesize_t totalFileSize = 0;
 514
 515     if (hasSelection()) {
 516         // give a summary of the status of the selected files
 517         const KFileItemList list = selectedItems();
 518         if (list.isEmpty()) {
 519             // when an item is triggered, it is temporary selected but selectedItems()
 520             // will return an empty list
 521             return text;
 522         }
 523
 524         KFileItemList::const_iterator it = list.begin();
 525         const KFileItemList::const_iterator end = list.end();
 526         while (it != end) {
 527             const KFileItem& item = *it;
 528             if (item.isDir()) {
 529                 ++folderCount;
 530             } else {
 531                 ++fileCount;
 532                 totalFileSize += item.size();
 533             }
 534             ++it;
 535         }
 536
 537         if (folderCount + fileCount == 1) {
 538             // if only one item is selected, show the filename
 539             const QString name = list.first().name();
 540             text = (folderCount == 1) ? i18nc("@info:status", "<filename>%1</filename> selected", name) :
 541                                         i18nc("@info:status", "<filename>%1</filename> selected (%2)",
 542                                               name, KIO::convertSize(totalFileSize));
 543         } else {
 544             // at least 2 items are selected
 545             const QString foldersText = i18ncp("@info:status", "1 Folder selected", "%1 Folders selected", folderCount);
 546             const QString filesText = i18ncp("@info:status", "1 File selected", "%1 Files selected", fileCount);
 547             if ((folderCount > 0) && (fileCount > 0)) {
 548                 text = i18nc("@info:status folders, files (size)", "%1, %2 (%3)",
 549                              foldersText, filesText, KIO::convertSize(totalFileSize));
 550             } else if (fileCount > 0) {
 551                 text = i18nc("@info:status files (size)", "%1 (%2)", filesText, KIO::convertSize(totalFileSize));
 552             } else {
 553                 Q_ASSERT(folderCount > 0);
 554                 text = foldersText;
 555             }
 556         }
 557     } else {
 558         calculateItemCount(fileCount, folderCount, totalFileSize);
 559         text = KIO::itemsSummaryString(fileCount + folderCount,
 560                                        fileCount, folderCount,
 561                                        totalFileSize, true);
 562     }
 563
 564     return text;
 565 }
 566
 567 QList<QAction*> DolphinView::versionControlActions(const KFileItemList& items) const
 568 {
 569     return m_controller->versionControlActions(items);
 570 }
 571
 572 void DolphinView::setUrl(const KUrl& url)
 573 {
 574     m_newFileNames.clear();
 575     updateView(url, KUrl());
 576 }
 577
 578 void DolphinView::selectAll()
 579 {
 580     m_viewAccessor.itemView()->selectAll();
 581 }
 582
 583 void DolphinView::invertSelection()
 584 {
 585     QItemSelectionModel* selectionModel = m_viewAccessor.itemView()->selectionModel();
 586     const QAbstractItemModel* itemModel = selectionModel->model();
 587
 588     const QModelIndex topLeft = itemModel->index(0, 0);
 589     const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 590                                                      itemModel->columnCount() - 1);
 591
 592     const QItemSelection selection(topLeft, bottomRight);
 593     selectionModel->select(selection, QItemSelectionModel::Toggle);
 594 }
 595
 596 void DolphinView::clearSelection()
 597 {
 598     m_viewAccessor.itemView()->clearSelection();
 599 }
 600
 601 void DolphinView::changeSelection(const KFileItemList& selection)
 602 {
 603     clearSelection();
 604     if (selection.isEmpty()) {
 605         return;
 606     }
 607     const KUrl& baseUrl = url();
 608     KUrl url;
 609     QItemSelection newSelection;
 610     foreach(const KFileItem& item, selection) {
 611         url = item.url().upUrl();
 612         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 613             QModelIndex index = m_viewAccessor.proxyModel()->mapFromSource(m_viewAccessor.dirModel()->indexForItem(item));
 614             newSelection.select(index, index);
 615         }
 616     }
 617     m_viewAccessor.itemView()->selectionModel()->select(newSelection,
 618                                          QItemSelectionModel::ClearAndSelect
 619                                          | QItemSelectionModel::Current);
 620 }
 621
 622 void DolphinView::renameSelectedItems()
 623 {
 624     KFileItemList items = selectedItems();
 625     const int itemCount = items.count();
 626     if (itemCount < 1) {
 627         return;
 628     }
 629
 630     if (itemCount > 1) {
 631         // More than one item has been selected for renaming. Open
 632         // a rename dialog and rename all items afterwards.
 633         QPointer<RenameDialog> dialog = new RenameDialog(this, items);
 634         if (dialog->exec() == QDialog::Rejected) {
 635             delete dialog;
 636             return;
 637         }
 638
 639         const QString newName = dialog->newName();
 640         if (newName.isEmpty()) {
 641             emit errorMessage(dialog->errorString());
 642             delete dialog;
 643             return;
 644         }
 645         delete dialog;
 646
 647         // the selection would be invalid after renaming the items, so just clear
 648         // it before
 649         clearSelection();
 650
 651         // TODO: check how this can be integrated into KIO::FileUndoManager/KonqOperations
 652         // as one operation instead of n rename operations like it is done now...
 653         Q_ASSERT(newName.contains('#'));
 654
 655         // currently the items are sorted by the selection order, resort
 656         // them by the file name
 657         qSort(items.begin(), items.end(), lessThan);
 658
 659         // iterate through all selected items and rename them...
 660         int index = 1;
 661         foreach (const KFileItem& item, items) {
 662             const KUrl& oldUrl = item.url();
 663             QString number;
 664             number.setNum(index++);
 665
 666             QString name = newName;
 667             name.replace('#', number);
 668
 669             if (oldUrl.fileName() != name) {
 670                 KUrl newUrl = oldUrl;
 671                 newUrl.setFileName(name);
 672                 KonqOperations::rename(this, oldUrl, newUrl);
 673             }
 674         }
 675     } else if (DolphinSettings::instance().generalSettings()->renameInline()) {
 676         Q_ASSERT(itemCount == 1);
 677         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForItem(items.first());
 678         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
 679         m_viewAccessor.itemView()->edit(proxyIndex);
 680     } else {
 681         Q_ASSERT(itemCount == 1);
 682
 683         QPointer<RenameDialog> dialog = new RenameDialog(this, items);
 684         if (dialog->exec() == QDialog::Rejected) {
 685             delete dialog;
 686             return;
 687         }
 688
 689         const QString newName = dialog->newName();
 690         if (newName.isEmpty()) {
 691             emit errorMessage(dialog->errorString());
 692             delete dialog;
 693             return;
 694         }
 695         delete dialog;
 696
 697         const KUrl& oldUrl = items.first().url();
 698         KUrl newUrl = oldUrl;
 699         newUrl.setFileName(newName);
 700         KonqOperations::rename(this, oldUrl, newUrl);
 701     }
 702
 703     // assure that the current index remains visible when KDirLister
 704     // will notify the view about changed items
 705     m_assureVisibleCurrentIndex = true;
 706 }
 707
 708 void DolphinView::trashSelectedItems()
 709 {
 710     const KUrl::List list = simplifiedSelectedUrls();
 711     KonqOperations::del(this, KonqOperations::TRASH, list);
 712 }
 713
 714 void DolphinView::deleteSelectedItems()
 715 {
 716     const KUrl::List list = simplifiedSelectedUrls();
 717     const bool del = KonqOperations::askDeleteConfirmation(list,
 718                      KonqOperations::DEL,
 719                      KonqOperations::DEFAULT_CONFIRMATION,
 720                      this);
 721
 722     if (del) {
 723         KIO::Job* job = KIO::del(list);
 724         connect(job, SIGNAL(result(KJob*)),
 725                 this, SLOT(slotDeleteFileFinished(KJob*)));
 726     }
 727 }
 728
 729 void DolphinView::cutSelectedItems()
 730 {
 731     QMimeData* mimeData = selectionMimeData();
 732     KonqMimeData::addIsCutSelection(mimeData, true);
 733     QApplication::clipboard()->setMimeData(mimeData);
 734 }
 735
 736 void DolphinView::copySelectedItems()
 737 {
 738     QMimeData* mimeData = selectionMimeData();
 739     QApplication::clipboard()->setMimeData(mimeData);
 740 }
 741
 742 void DolphinView::paste()
 743 {
 744     pasteToUrl(url());
 745 }
 746
 747 void DolphinView::pasteIntoFolder()
 748 {
 749     const KFileItemList items = selectedItems();
 750     if ((items.count() == 1) && items.first().isDir()) {
 751         pasteToUrl(items.first().url());
 752     }
 753 }
 754
 755 void DolphinView::setShowPreview(bool show)
 756 {
 757     if (m_showPreview == show) {
 758         return;
 759     }
 760
 761     const KUrl viewPropsUrl = rootUrl();
 762     ViewProperties props(viewPropsUrl);
 763     props.setShowPreview(show);
 764
 765     m_showPreview = show;
 766     const int oldZoomLevel = m_controller->zoomLevel();
 767     emit showPreviewChanged();
 768
 769     // Enabling or disabling the preview might change the icon size of the view.
 770     // As the view does not emit a signal when the icon size has been changed,
 771     // the used zoom level of the controller must be adjusted manually:
 772     updateZoomLevel(oldZoomLevel);
 773 }
 774
 775 void DolphinView::setShowHiddenFiles(bool show)
 776 {
 777     if (m_viewAccessor.dirLister()->showingDotFiles() == show) {
 778         return;
 779     }
 780
 781     const KUrl viewPropsUrl = rootUrl();
 782     ViewProperties props(viewPropsUrl);
 783     props.setShowHiddenFiles(show);
 784
 785     m_viewAccessor.dirLister()->setShowingDotFiles(show);
 786     emit showHiddenFilesChanged();
 787 }
 788
 789 void DolphinView::setCategorizedSorting(bool categorized)
 790 {
 791     if (categorized == categorizedSorting()) {
 792         return;
 793     }
 794
 795     // setCategorizedSorting(true) may only get invoked
 796     // if the view supports categorized sorting
 797     Q_ASSERT(!categorized || supportsCategorizedSorting());
 798
 799     ViewProperties props(rootUrl());
 800     props.setCategorizedSorting(categorized);
 801     props.save();
 802
 803     m_storedCategorizedSorting = categorized;
 804     m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 805
 806     emit categorizedSortingChanged();
 807 }
 808
 809 void DolphinView::toggleSortOrder()
 810 {
 811     const Qt::SortOrder order = (sortOrder() == Qt::AscendingOrder) ?
 812                                 Qt::DescendingOrder :
 813                                 Qt::AscendingOrder;
 814     setSortOrder(order);
 815 }
 816
 817 void DolphinView::toggleSortFoldersFirst()
 818 {
 819     setSortFoldersFirst(!sortFoldersFirst());
 820 }
 821
 822 void DolphinView::toggleAdditionalInfo(QAction* action)
 823 {
 824     const KFileItemDelegate::Information info =
 825         static_cast<KFileItemDelegate::Information>(action->data().toInt());
 826
 827     KFileItemDelegate::InformationList list = additionalInfo();
 828
 829     const bool show = action->isChecked();
 830
 831     const int index = list.indexOf(info);
 832     const bool containsInfo = (index >= 0);
 833     if (show && !containsInfo) {
 834         list.append(info);
 835         setAdditionalInfo(list);
 836     } else if (!show && containsInfo) {
 837         list.removeAt(index);
 838         setAdditionalInfo(list);
 839         Q_ASSERT(list.indexOf(info) < 0);
 840     }
 841 }
 842
 843 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 844 {
 845     QWidget::mouseReleaseEvent(event);
 846     setActive(true);
 847 }
 848
 849 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 850 {
 851     switch (event->type()) {
 852     case QEvent::FocusIn:
 853         if (watched == m_viewAccessor.itemView()) {
 854             m_controller->requestActivation();
 855         }
 856         break;
 857
 858     case QEvent::DragEnter:
 859         if (watched == m_viewAccessor.itemView()->viewport()) {
 860             setActive(true);
 861         }
 862         break;
 863
 864     case QEvent::KeyPress:
 865         if (watched == m_viewAccessor.itemView()) {
 866             // clear the selection when Escape has been pressed
 867             QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
 868             if (keyEvent->key() == Qt::Key_Escape) {
 869                 clearSelection();
 870             }
 871         }
 872         break;
 873
 874     case QEvent::Wheel:
 875         if (watched == m_viewAccessor.itemView()->viewport()) {
 876             // Ctrl+wheel events should cause icon zooming, but not if the left mouse button is pressed
 877             // (the user is probably trying to scroll during a selection in that case)
 878             QWheelEvent* wheelEvent = static_cast<QWheelEvent*>(event);
 879             if (wheelEvent->modifiers() & Qt::ControlModifier && !(wheelEvent->buttons() & Qt::LeftButton)) {
 880                 const int delta = wheelEvent->delta();
 881                 const int level = zoomLevel();
 882                 if (delta > 0) {
 883                     setZoomLevel(level + 1);
 884                 } else if (delta < 0) {
 885                     setZoomLevel(level - 1);
 886                 }
 887                 return true;
 888             }
 889         }
 890         break;
 891
 892     default:
 893         break;
 894     }
 895
 896     return QWidget::eventFilter(watched, event);
 897 }
 898
 899 void DolphinView::activate()
 900 {
 901     setActive(true);
 902 }
 903
 904 void DolphinView::triggerItem(const KFileItem& item)
 905 {
 906     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 907     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 908         // items are selected by the user, hence don't trigger the
 909         // item specified by 'index'
 910         return;
 911     }
 912
 913     // TODO: the m_isContextMenuOpen check is a workaround for Qt-issue 207192
 914     if (item.isNull() || m_isContextMenuOpen) {
 915         return;
 916     }
 917
 918     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 919 }
 920
 921 void DolphinView::emitDelayedSelectionChangedSignal()
 922 {
 923     // Invoke emitSelectionChangedSignal() with a delay of 300 ms. This assures
 924     // that fast selection changes don't result in expensive operations to
 925     // collect all file items for the signal (see DolphinView::selectedItems()).
 926     m_selectionChangedTimer->start();
 927 }
 928
 929 void DolphinView::emitSelectionChangedSignal()
 930 {
 931     emit selectionChanged(DolphinView::selectedItems());
 932 }
 933
 934 void DolphinView::openContextMenu(const QPoint& pos,
 935                                   const QList<QAction*>& customActions)
 936 {
 937     KFileItem item;
 938     const QModelIndex index = m_viewAccessor.itemView()->indexAt(pos);
 939     if (index.isValid() && (index.column() == DolphinModel::Name)) {
 940         const QModelIndex dolphinModelIndex = m_viewAccessor.proxyModel()->mapToSource(index);
 941         item = m_viewAccessor.dirModel()->itemForIndex(dolphinModelIndex);
 942     }
 943
 944     m_isContextMenuOpen = true; // TODO: workaround for Qt-issue 207192
 945     emit requestContextMenu(item, url(), customActions);
 946     m_isContextMenuOpen = false;
 947 }
 948
 949 void DolphinView::dropUrls(const KFileItem& destItem,
 950                            const KUrl& destPath,
 951                            QDropEvent* event)
 952 {
 953     addNewFileNames(event->mimeData());
 954     DragAndDropHelper::instance().dropUrls(destItem, destPath, event, this);
 955 }
 956
 957 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 958 {
 959     ViewProperties props(rootUrl());
 960     props.setSorting(sorting);
 961
 962     m_viewAccessor.proxyModel()->setSorting(sorting);
 963
 964     emit sortingChanged(sorting);
 965 }
 966
 967 void DolphinView::updateSortOrder(Qt::SortOrder order)
 968 {
 969     ViewProperties props(rootUrl());
 970     props.setSortOrder(order);
 971
 972     m_viewAccessor.proxyModel()->setSortOrder(order);
 973
 974     emit sortOrderChanged(order);
 975 }
 976
 977 void DolphinView::updateSortFoldersFirst(bool foldersFirst)
 978 {
 979     ViewProperties props(rootUrl());
 980     props.setSortFoldersFirst(foldersFirst);
 981
 982     m_viewAccessor.proxyModel()->setSortFoldersFirst(foldersFirst);
 983
 984     emit sortFoldersFirstChanged(foldersFirst);
 985 }
 986
 987 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 988 {
 989     ViewProperties props(rootUrl());
 990     props.setAdditionalInfo(info);
 991     props.save();
 992
 993     m_viewAccessor.itemDelegate()->setShowInformation(info);
 994
 995     emit additionalInfoChanged();
 996 }
 997
 998 void DolphinView::updateAdditionalInfoActions(KActionCollection* collection)
 999 {
1000     const bool enable = (m_mode == DolphinView::DetailsView) ||
1001                         (m_mode == DolphinView::IconsView);
1002
1003     QAction* showSizeInfo = collection->action("show_size_info");
1004     QAction* showDateInfo = collection->action("show_date_info");
1005     QAction* showPermissionsInfo = collection->action("show_permissions_info");
1006     QAction* showOwnerInfo = collection->action("show_owner_info");
1007     QAction* showGroupInfo = collection->action("show_group_info");
1008     QAction* showMimeInfo = collection->action("show_mime_info");
1009
1010     showSizeInfo->setChecked(false);
1011     showDateInfo->setChecked(false);
1012     showPermissionsInfo->setChecked(false);
1013     showOwnerInfo->setChecked(false);
1014     showGroupInfo->setChecked(false);
1015     showMimeInfo->setChecked(false);
1016
1017     showSizeInfo->setEnabled(enable);
1018     showDateInfo->setEnabled(enable);
1019     showPermissionsInfo->setEnabled(enable);
1020     showOwnerInfo->setEnabled(enable);
1021     showGroupInfo->setEnabled(enable);
1022     showMimeInfo->setEnabled(enable);
1023
1024     foreach (KFileItemDelegate::Information info, m_viewAccessor.itemDelegate()->showInformation()) {
1025         switch (info) {
1026         case KFileItemDelegate::Size:
1027             showSizeInfo->setChecked(true);
1028             break;
1029         case KFileItemDelegate::ModificationTime:
1030             showDateInfo->setChecked(true);
1031             break;
1032         case KFileItemDelegate::Permissions:
1033             showPermissionsInfo->setChecked(true);
1034             break;
1035         case KFileItemDelegate::Owner:
1036             showOwnerInfo->setChecked(true);
1037             break;
1038         case KFileItemDelegate::OwnerAndGroup:
1039             showGroupInfo->setChecked(true);
1040             break;
1041         case KFileItemDelegate::FriendlyMimeType:
1042             showMimeInfo->setChecked(true);
1043             break;
1044         default:
1045             break;
1046         }
1047     }
1048 }
1049
1050 QPair<bool, QString> DolphinView::pasteInfo() const
1051 {
1052     return KonqOperations::pasteInfo(url());
1053 }
1054
1055 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
1056 {
1057     m_tabsForFiles = tabsForFiles;
1058 }
1059
1060 bool DolphinView::isTabsForFilesEnabled() const
1061 {
1062     return m_tabsForFiles;
1063 }
1064
1065 void DolphinView::activateItem(const KUrl& url)
1066 {
1067     // TODO: If DolphinViewContainer uses DolphinView::restoreState(...) to restore the
1068     // view state in KDE 4.5, this function can be removed.
1069     m_activeItemUrl = url;
1070 }
1071
1072 bool DolphinView::itemsExpandable() const
1073 {
1074     return m_viewAccessor.itemsExpandable();
1075 }
1076
1077 void DolphinView::restoreState(QDataStream &stream)
1078 {
1079      // current item
1080     stream >> m_activeItemUrl;
1081
1082     // view position
1083     stream >> m_restoredContentsPosition;
1084
1085     // expanded folders (only relevant for the details view - will be ignored by the view in other view modes)
1086     QSet<KUrl> urlsToExpand;
1087     stream >> urlsToExpand;
1088     const DolphinDetailsViewExpander* expander = m_viewAccessor.setExpandedUrls(urlsToExpand);
1089
1090     if (expander) {
1091         m_expanderActive = true;
1092         connect (expander, SIGNAL(completed()), this, SLOT(slotLoadingCompleted()));
1093     }
1094     else {
1095         m_expanderActive = false;
1096     }
1097 }
1098
1099 void DolphinView::saveState(QDataStream &stream)
1100 {
1101     // current item
1102     KFileItem currentItem;
1103     const QAbstractItemView* view = m_viewAccessor.itemView();
1104
1105     if(view) {
1106         const QModelIndex proxyIndex = view->currentIndex();
1107         const QModelIndex dirModelIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
1108         currentItem = m_viewAccessor.dirModel()->itemForIndex(dirModelIndex);
1109     }
1110
1111     KUrl currentUrl;
1112     if (!currentItem.isNull())
1113         currentUrl = currentItem.url();
1114
1115     stream << currentUrl;
1116
1117     // view position
1118     stream << contentsPosition();
1119
1120     // expanded folders (only relevant for the details view - the set will be empty in other view modes)
1121     stream << m_viewAccessor.expandedUrls();
1122 }
1123
1124 void DolphinView::observeCreatedItem(const KUrl& url)
1125 {
1126     m_createdItemUrl = url;
1127     connect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
1128             this, SLOT(selectAndScrollToCreatedItem()));
1129 }
1130
1131 void DolphinView::selectAndScrollToCreatedItem()
1132 {
1133     const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_createdItemUrl);
1134     if (dirIndex.isValid()) {
1135         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1136         m_viewAccessor.itemView()->setCurrentIndex(proxyIndex);
1137     }
1138
1139     disconnect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
1140                this, SLOT(selectAndScrollToCreatedItem()));
1141     m_createdItemUrl = KUrl();
1142 }
1143
1144 void DolphinView::emitContentsMoved()
1145 {
1146     // TODO: If DolphinViewContainer uses DolphinView::saveState(...) to save the
1147     // view state in KDE 4.5, the contentsMoved signal might not be needed anymore,
1148     // depending on how the implementation is done.
1149     // In that case, the code in contentsPosition() can be moved to saveState().
1150
1151     // only emit the contents moved signal if no directory loading is ongoing
1152     // (this would reset the contents position always to (0, 0))
1153     if (!m_loadingDirectory) {
1154         const QPoint pos(contentsPosition());
1155         emit contentsMoved(pos.x(), pos.y());
1156     }
1157 }
1158
1159 void DolphinView::showHoverInformation(const KFileItem& item)
1160 {
1161     emit requestItemInfo(item);
1162 }
1163
1164 void DolphinView::clearHoverInformation()
1165 {
1166     emit requestItemInfo(KFileItem());
1167 }
1168
1169 void DolphinView::slotDeleteFileFinished(KJob* job)
1170 {
1171     if (job->error() == 0) {
1172         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1173     } else if (job->error() != KIO::ERR_USER_CANCELED) {
1174         emit errorMessage(job->errorString());
1175     }
1176 }
1177
1178 void DolphinView::slotRequestUrlChange(const KUrl& url)
1179 {
1180     emit requestUrlChange(url);
1181     m_controller->setUrl(url);
1182 }
1183
1184 void DolphinView::slotDirListerCompleted()
1185 {
1186     if (!m_expanderActive) {
1187         slotLoadingCompleted();
1188     }
1189
1190     if (!m_newFileNames.isEmpty()) {
1191         // select all newly added items created by a paste operation or
1192         // a drag & drop operation
1193         const int rowCount = m_viewAccessor.proxyModel()->rowCount();
1194         QItemSelection selection;
1195         for (int row = 0; row < rowCount; ++row) {
1196             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->index(row, 0);
1197             const QModelIndex dirIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
1198             const KUrl url = m_viewAccessor.dirModel()->itemForIndex(dirIndex).url();
1199             if (m_newFileNames.contains(url.fileName())) {
1200                 selection.merge(QItemSelection(proxyIndex, proxyIndex), QItemSelectionModel::Select);
1201             }
1202         }
1203         m_viewAccessor.itemView()->selectionModel()->select(selection, QItemSelectionModel::Select);
1204
1205         m_newFileNames.clear();
1206     }
1207 }
1208
1209 void DolphinView::slotLoadingCompleted()
1210 {
1211     m_expanderActive = false;
1212     m_loadingDirectory = false;
1213
1214     if (!m_activeItemUrl.isEmpty()) {
1215         // assure that the current item remains visible
1216         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_activeItemUrl);
1217         if (dirIndex.isValid()) {
1218             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1219             QAbstractItemView* view = m_viewAccessor.itemView();
1220             const bool clearSelection = !hasSelection();
1221             view->setCurrentIndex(proxyIndex);
1222             if (clearSelection) {
1223                 view->clearSelection();
1224             }
1225             m_activeItemUrl.clear();
1226         }
1227     }
1228
1229     if (!m_selectedItems.isEmpty()) {
1230         changeSelection(m_selectedItems);
1231         m_selectedItems.clear();
1232     }
1233
1234     // Restore the contents position. This has to be done using a Qt::QueuedConnection
1235     // because the view might not be in its final state yet.
1236     QMetaObject::invokeMethod(this, "restoreContentsPosition", Qt::QueuedConnection);
1237 }
1238
1239 void DolphinView::slotRefreshItems()
1240 {
1241     if (m_assureVisibleCurrentIndex) {
1242         m_assureVisibleCurrentIndex = false;
1243         m_viewAccessor.itemView()->scrollTo(m_viewAccessor.itemView()->currentIndex());
1244     }
1245 }
1246
1247 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1248 {
1249     if (!url.isValid()) {
1250         const QString location(url.pathOrUrl());
1251         if (location.isEmpty()) {
1252             emit errorMessage(i18nc("@info:status", "The location is empty."));
1253         } else {
1254             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1255         }
1256         return;
1257     }
1258
1259     m_loadingDirectory = true;
1260     m_expanderActive = false;
1261
1262     m_viewAccessor.dirLister()->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
1263 }
1264
1265 void DolphinView::applyViewProperties()
1266 {
1267     if (m_ignoreViewProperties) {
1268         return;
1269     }
1270
1271     const ViewProperties props(rootUrl());
1272
1273     const Mode mode = props.viewMode();
1274     if (m_mode != mode) {
1275         const int oldZoomLevel = m_controller->zoomLevel();
1276
1277         m_mode = mode;
1278         createView();
1279         emit modeChanged();
1280
1281         updateZoomLevel(oldZoomLevel);
1282     }
1283     if (m_viewAccessor.itemView() == 0) {
1284         createView();
1285     }
1286     Q_ASSERT(m_viewAccessor.itemView() != 0);
1287     Q_ASSERT(m_viewAccessor.itemDelegate() != 0);
1288
1289     const bool showHiddenFiles = props.showHiddenFiles();
1290     if (showHiddenFiles != m_viewAccessor.dirLister()->showingDotFiles()) {
1291         m_viewAccessor.dirLister()->setShowingDotFiles(showHiddenFiles);
1292         emit showHiddenFilesChanged();
1293     }
1294
1295     m_storedCategorizedSorting = props.categorizedSorting();
1296     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1297     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
1298         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
1299         emit categorizedSortingChanged();
1300     }
1301
1302     const DolphinView::Sorting sorting = props.sorting();
1303     if (sorting != m_viewAccessor.proxyModel()->sorting()) {
1304         m_viewAccessor.proxyModel()->setSorting(sorting);
1305         emit sortingChanged(sorting);
1306     }
1307
1308     const Qt::SortOrder sortOrder = props.sortOrder();
1309     if (sortOrder != m_viewAccessor.proxyModel()->sortOrder()) {
1310         m_viewAccessor.proxyModel()->setSortOrder(sortOrder);
1311         emit sortOrderChanged(sortOrder);
1312     }
1313
1314     const bool sortFoldersFirst = props.sortFoldersFirst();
1315     if (sortFoldersFirst != m_viewAccessor.proxyModel()->sortFoldersFirst()) {
1316         m_viewAccessor.proxyModel()->setSortFoldersFirst(sortFoldersFirst);
1317         emit sortFoldersFirstChanged(sortFoldersFirst);
1318     }
1319
1320     KFileItemDelegate::InformationList info = props.additionalInfo();
1321     if (info != m_viewAccessor.itemDelegate()->showInformation()) {
1322         m_viewAccessor.itemDelegate()->setShowInformation(info);
1323         emit additionalInfoChanged();
1324     }
1325
1326     const bool showPreview = props.showPreview();
1327     if (showPreview != m_showPreview) {
1328         m_showPreview = showPreview;
1329         const int oldZoomLevel = m_controller->zoomLevel();
1330         emit showPreviewChanged();
1331
1332         // Enabling or disabling the preview might change the icon size of the view.
1333         // As the view does not emit a signal when the icon size has been changed,
1334         // the used zoom level of the controller must be adjusted manually:
1335         updateZoomLevel(oldZoomLevel);
1336     }
1337
1338     if (DolphinSettings::instance().generalSettings()->globalViewProps()) {
1339         // During the lifetime of a DolphinView instance the global view properties
1340         // should not be changed. This allows e. g. to split a view and use different
1341         // view properties for each view.
1342         m_ignoreViewProperties = true;
1343     }
1344 }
1345
1346 void DolphinView::createView()
1347 {
1348     deleteView();
1349
1350     Q_ASSERT(m_viewAccessor.itemView() == 0);
1351     m_viewAccessor.createView(this, m_controller, m_mode);
1352
1353     QAbstractItemView* view = m_viewAccessor.itemView();
1354     Q_ASSERT(view != 0);
1355     view->installEventFilter(this);
1356     view->viewport()->installEventFilter(this);
1357
1358     m_controller->setItemView(view);
1359     connect(m_controller, SIGNAL(selectionChanged()),
1360             this, SLOT(emitDelayedSelectionChangedSignal()));
1361
1362     // When changing the view mode, the selection is lost due to reinstantiating
1363     // a new item view with a custom selection model. Pass the ownership of the
1364     // selection model to DolphinView, so that it can be shared by all item views.
1365     if (m_selectionModel != 0) {
1366         view->setSelectionModel(m_selectionModel);
1367     } else {
1368         m_selectionModel = view->selectionModel();
1369     }
1370     m_selectionModel->setParent(this);
1371
1372     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
1373             this, SLOT(emitContentsMoved()));
1374     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
1375             this, SLOT(emitContentsMoved()));
1376
1377     setFocusProxy(m_viewAccessor.layoutTarget());
1378     m_topLayout->insertWidget(1, m_viewAccessor.layoutTarget());
1379 }
1380
1381 void DolphinView::deleteView()
1382 {
1383     QAbstractItemView* view = m_viewAccessor.itemView();
1384     if (view != 0) {
1385         // It's important to set the keyboard focus to the parent
1386         // before deleting the view: Otherwise when having a split
1387         // view the other view will get the focus and will request
1388         // an activation (see DolphinView::eventFilter()).
1389         setFocusProxy(0);
1390         setFocus();
1391
1392         m_topLayout->removeWidget(view);
1393         view->close();
1394
1395         // disconnect all signal/slots
1396         disconnect(view);
1397         m_controller->disconnect(view);
1398         view->disconnect();
1399         disconnect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
1400                    this, SLOT(emitContentsMoved()));
1401         disconnect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
1402                    this, SLOT(emitContentsMoved()));
1403
1404         m_viewAccessor.deleteView();
1405     }
1406 }
1407
1408 void DolphinView::pasteToUrl(const KUrl& url)
1409 {
1410     addNewFileNames(QApplication::clipboard()->mimeData());
1411     KonqOperations::doPaste(this, url);
1412 }
1413
1414 void DolphinView::updateZoomLevel(int oldZoomLevel)
1415 {
1416     const int newZoomLevel = ZoomLevelInfo::zoomLevelForIconSize(m_viewAccessor.itemView()->iconSize());
1417     if (oldZoomLevel != newZoomLevel) {
1418         m_controller->setZoomLevel(newZoomLevel);
1419         emit zoomLevelChanged(newZoomLevel);
1420     }
1421 }
1422
1423 KUrl::List DolphinView::simplifiedSelectedUrls() const
1424 {
1425     KUrl::List list = selectedUrls();
1426     if (itemsExpandable() ) {
1427         list = KDirModel::simplifiedUrlList(list);
1428     }
1429     return list;
1430 }
1431
1432 QMimeData* DolphinView::selectionMimeData() const
1433 {
1434     const QAbstractItemView* view = m_viewAccessor.itemView();
1435     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
1436     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
1437     return m_viewAccessor.dirModel()->mimeData(selection.indexes());
1438 }
1439
1440 void DolphinView::addNewFileNames(const QMimeData* mimeData)
1441 {
1442     const KUrl::List urls = KUrl::List::fromMimeData(mimeData);
1443     foreach (const KUrl& url, urls) {
1444         m_newFileNames.insert(url.fileName());
1445     }
1446 }
1447
1448 DolphinView::ViewAccessor::ViewAccessor(DolphinSortFilterProxyModel* proxyModel) :
1449     m_iconsView(0),
1450     m_detailsView(0),
1451     m_columnsContainer(0),
1452     m_proxyModel(proxyModel),
1453     m_dragSource(0)
1454 {
1455 }
1456
1457 DolphinView::ViewAccessor::~ViewAccessor()
1458 {
1459     delete m_dragSource;
1460     m_dragSource = 0;
1461 }
1462
1463 void DolphinView::ViewAccessor::createView(QWidget* parent,
1464                                            DolphinController* controller,
1465                                            Mode mode)
1466 {
1467     Q_ASSERT(itemView() == 0);
1468
1469     switch (mode) {
1470     case IconsView:
1471         m_iconsView = new DolphinIconsView(parent, controller, m_proxyModel);
1472         break;
1473
1474     case DetailsView:
1475         m_detailsView = new DolphinDetailsView(parent, controller, m_proxyModel);
1476         break;
1477
1478     case ColumnView:
1479         m_columnsContainer = new DolphinColumnViewContainer(parent, controller);
1480         break;
1481
1482     default:
1483         Q_ASSERT(false);
1484     }
1485 }
1486
1487 void DolphinView::ViewAccessor::deleteView()
1488 {
1489     QAbstractItemView* view = itemView();
1490     if (view != 0) {
1491         if (DragAndDropHelper::instance().isDragSource(view)) {
1492             // The view is a drag source (the feature "Open folders
1493             // during drag operations" is used). Deleting the view
1494             // during an ongoing drag operation is not allowed, so
1495             // this will postponed.
1496             if (m_dragSource != 0) {
1497                 // the old stored view is obviously not the drag source anymore
1498                 m_dragSource->deleteLater();
1499                 m_dragSource = 0;
1500             }
1501             view->hide();
1502             m_dragSource = view;
1503         } else {
1504             view->deleteLater();
1505         }
1506     }
1507
1508     m_iconsView = 0;
1509     m_detailsView = 0;
1510
1511     if (m_columnsContainer != 0) {
1512         m_columnsContainer->deleteLater();
1513     }
1514     m_columnsContainer = 0;
1515 }
1516
1517
1518 void DolphinView::ViewAccessor::prepareUrlChange(const KUrl& url)
1519 {
1520     if (m_columnsContainer != 0) {
1521         m_columnsContainer->showColumn(url);
1522     }
1523
1524     if(!m_detailsViewExpander.isNull()) {
1525         // Stop expanding items in the current folder
1526         m_detailsViewExpander->stop();
1527     }
1528 }
1529
1530 QAbstractItemView* DolphinView::ViewAccessor::itemView() const
1531 {
1532     if (m_iconsView != 0) {
1533         return m_iconsView;
1534     }
1535
1536     if (m_detailsView != 0) {
1537         return m_detailsView;
1538     }
1539
1540     if (m_columnsContainer != 0) {
1541         return m_columnsContainer->activeColumn();
1542     }
1543
1544     return 0;
1545 }
1546
1547 KFileItemDelegate* DolphinView::ViewAccessor::itemDelegate() const
1548 {
1549     return static_cast<KFileItemDelegate*>(itemView()->itemDelegate());
1550 }
1551
1552 QWidget* DolphinView::ViewAccessor::layoutTarget() const
1553 {
1554     if (m_columnsContainer != 0) {
1555         return m_columnsContainer;
1556     }
1557     return itemView();
1558 }
1559
1560 KUrl DolphinView::ViewAccessor::rootUrl() const
1561 {
1562     return (m_columnsContainer != 0) ? m_columnsContainer->rootUrl() : KUrl();
1563 }
1564
1565 bool DolphinView::ViewAccessor::supportsCategorizedSorting() const
1566 {
1567     return m_iconsView != 0;
1568 }
1569
1570 bool DolphinView::ViewAccessor::itemsExpandable() const
1571 {
1572     return (m_detailsView != 0) && m_detailsView->itemsExpandable();
1573 }
1574
1575
1576 QSet<KUrl> DolphinView::ViewAccessor::expandedUrls() const
1577 {
1578     if(m_detailsView != 0) {
1579         return m_detailsView->expandedUrls();
1580     }
1581     else {
1582         return QSet<KUrl>();
1583     }
1584 }
1585
1586 const DolphinDetailsViewExpander* DolphinView::ViewAccessor::setExpandedUrls(const QSet<KUrl>& urlsToExpand)
1587 {
1588     if((m_detailsView != 0) && m_detailsView->itemsExpandable() && !urlsToExpand.isEmpty()) {
1589         m_detailsViewExpander = new DolphinDetailsViewExpander(m_detailsView, urlsToExpand);
1590         return m_detailsViewExpander;
1591     }
1592     else {
1593         return 0;
1594     }
1595 }
1596
1597 bool DolphinView::ViewAccessor::reloadOnAdditionalInfoChange() const
1598 {
1599     // the details view requires no reloading of the directory, as it maps
1600     // the file item delegate info to its columns internally
1601     return m_detailsView != 0;
1602 }
1603
1604 DolphinModel* DolphinView::ViewAccessor::dirModel() const
1605 {
1606     return static_cast<DolphinModel*>(proxyModel()->sourceModel());
1607 }
1608
1609 DolphinSortFilterProxyModel* DolphinView::ViewAccessor::proxyModel() const
1610 {
1611     if (m_columnsContainer != 0) {
1612         return static_cast<DolphinSortFilterProxyModel*>(m_columnsContainer->activeColumn()->model());
1613     }
1614     return m_proxyModel;
1615 }
1616
1617 KDirLister* DolphinView::ViewAccessor::dirLister() const
1618 {
1619     return dirModel()->dirLister();
1620 }
1621
1622 void DolphinView::slotRedirection(const KUrl& oldUrl, const KUrl& newUrl)
1623 {
1624     emit redirection(oldUrl, newUrl);
1625     m_controller->redirectToUrl(newUrl); // #186947
1626 }
1627
1628 void DolphinView::restoreContentsPosition()
1629 {
1630     if (!m_restoredContentsPosition.isNull()) {
1631         setContentsPosition(m_restoredContentsPosition.x(), m_restoredContentsPosition.y());
1632         m_restoredContentsPosition = QPoint();
1633     }
1634 }
1635
1636 #include "dolphinview.moc"