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