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.layoutTarget());
 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     // remember the currently selected items, so that they will
 226     // be restored after reloading the directory
 227     m_selectedItems = selectedItems();
 228
 229     deleteView();
 230
 231     const KUrl viewPropsUrl = rootUrl();
 232     ViewProperties props(viewPropsUrl);
 233     props.setViewMode(m_mode);
 234     createView();
 235
 236     // the file item delegate has been recreated, apply the current
 237     // additional information manually
 238     const KFileItemDelegate::InformationList infoList = props.additionalInfo();
 239     m_viewAccessor.itemDelegate()->setShowInformation(infoList);
 240     emit additionalInfoChanged();
 241
 242     // Not all view modes support categorized sorting. Adjust the sorting model
 243     // if changing the view mode results in a change of the categorized sorting
 244     // capabilities.
 245     m_storedCategorizedSorting = props.categorizedSorting();
 246     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 247     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
 248         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 249         emit categorizedSortingChanged();
 250     }
 251
 252     emit modeChanged();
 253
 254     updateZoomLevel(oldZoomLevel);
 255     loadDirectory(viewPropsUrl);
 256 }
 257
 258 DolphinView::Mode DolphinView::mode() const
 259 {
 260     return m_mode;
 261 }
 262
 263 bool DolphinView::showPreview() const
 264 {
 265     return m_showPreview;
 266 }
 267
 268 bool DolphinView::showHiddenFiles() const
 269 {
 270     return m_viewAccessor.dirLister()->showingDotFiles();
 271 }
 272
 273 bool DolphinView::categorizedSorting() const
 274 {
 275     // If all view modes would support categorized sorting, returning
 276     // m_viewAccessor.proxyModel()->isCategorizedModel() would be the way to go. As
 277     // currently only the icons view supports caterized sorting, we remember
 278     // the stored view properties state in m_storedCategorizedSorting and
 279     // return this state. The application takes care to disable the corresponding
 280     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 281     // that this setting is not applied to the current view mode.
 282     return m_storedCategorizedSorting;
 283 }
 284
 285 bool DolphinView::supportsCategorizedSorting() const
 286 {
 287     return m_viewAccessor.supportsCategorizedSorting();
 288 }
 289
 290 bool DolphinView::hasSelection() const
 291 {
 292     const QAbstractItemView* view = m_viewAccessor.itemView();
 293     return (view != 0) && view->selectionModel()->hasSelection();
 294 }
 295
 296 void DolphinView::markUrlsAsSelected(const QList<KUrl>& urls)
 297 {
 298     foreach (const KUrl& url, urls) {
 299         KFileItem item(KFileItem::Unknown, KFileItem::Unknown, url);
 300         m_selectedItems.append(item);
 301     }
 302 }
 303
 304 KFileItemList DolphinView::selectedItems() const
 305 {
 306     KFileItemList itemList;
 307     const QAbstractItemView* view = m_viewAccessor.itemView();
 308     if (view == 0) {
 309         return itemList;
 310     }
 311
 312     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
 313
 314     const QModelIndexList indexList = selection.indexes();
 315     foreach (const QModelIndex &index, indexList) {
 316         KFileItem item = m_viewAccessor.dirModel()->itemForIndex(index);
 317         if (!item.isNull()) {
 318             itemList.append(item);
 319         }
 320     }
 321
 322     return itemList;
 323 }
 324
 325 KUrl::List DolphinView::selectedUrls() const
 326 {
 327     KUrl::List urls;
 328     const KFileItemList list = selectedItems();
 329     foreach (const KFileItem &item, list) {
 330         urls.append(item.url());
 331     }
 332     return urls;
 333 }
 334
 335 int DolphinView::selectedItemsCount() const
 336 {
 337     const QAbstractItemView* view = m_viewAccessor.itemView();
 338     if (view == 0) {
 339         return 0;
 340     }
 341
 342     return view->selectionModel()->selectedIndexes().count();
 343 }
 344
 345 QItemSelectionModel* DolphinView::selectionModel() const
 346 {
 347     return m_viewAccessor.itemView()->selectionModel();
 348 }
 349
 350 void DolphinView::setContentsPosition(int x, int y)
 351 {
 352     QAbstractItemView* view = m_viewAccessor.itemView();
 353     Q_ASSERT(view != 0);
 354     view->horizontalScrollBar()->setValue(x);
 355     view->verticalScrollBar()->setValue(y);
 356
 357     m_loadingDirectory = false;
 358 }
 359
 360 void DolphinView::setRestoredContentsPosition(const QPoint& pos)
 361 {
 362     // TODO: This function is called by DolphinViewContainer.
 363     // If it makes use of DolphinView::restoreState(...) to restore the
 364     // view state in KDE 4.5, this function can be removed.
 365     m_restoredContentsPosition = pos;
 366 }
 367
 368 QPoint DolphinView::contentsPosition() const
 369 {
 370     // TODO: If DolphinViewContainer uses DolphinView::saveState(...) to save the
 371     // view state in KDE 4.5, this code can be moved to DolphinView::saveState.
 372     QAbstractItemView* view = m_viewAccessor.itemView();
 373     Q_ASSERT(view != 0);
 374     const int x = view->horizontalScrollBar()->value();
 375     const int y = view->verticalScrollBar()->value();
 376     return QPoint(x, y);
 377 }
 378
 379 void DolphinView::setZoomLevel(int level)
 380 {
 381     if (level < ZoomLevelInfo::minimumLevel()) {
 382         level = ZoomLevelInfo::minimumLevel();
 383     } else if (level > ZoomLevelInfo::maximumLevel()) {
 384         level = ZoomLevelInfo::maximumLevel();
 385     }
 386
 387     if (level != zoomLevel()) {
 388         m_controller->setZoomLevel(level);
 389         emit zoomLevelChanged(level);
 390     }
 391 }
 392
 393 int DolphinView::zoomLevel() const
 394 {
 395     return m_controller->zoomLevel();
 396 }
 397
 398 void DolphinView::setSorting(Sorting sorting)
 399 {
 400     if (sorting != this->sorting()) {
 401         updateSorting(sorting);
 402     }
 403 }
 404
 405 DolphinView::Sorting DolphinView::sorting() const
 406 {
 407     return m_viewAccessor.proxyModel()->sorting();
 408 }
 409
 410 void DolphinView::setSortOrder(Qt::SortOrder order)
 411 {
 412     if (sortOrder() != order) {
 413         updateSortOrder(order);
 414     }
 415 }
 416
 417 Qt::SortOrder DolphinView::sortOrder() const
 418 {
 419     return m_viewAccessor.proxyModel()->sortOrder();
 420 }
 421
 422 void DolphinView::setSortFoldersFirst(bool foldersFirst)
 423 {
 424     if (sortFoldersFirst() != foldersFirst) {
 425         updateSortFoldersFirst(foldersFirst);
 426     }
 427 }
 428
 429 bool DolphinView::sortFoldersFirst() const
 430 {
 431     return m_viewAccessor.proxyModel()->sortFoldersFirst();
 432 }
 433
 434 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 435 {
 436     const KUrl viewPropsUrl = rootUrl();
 437     ViewProperties props(viewPropsUrl);
 438     props.setAdditionalInfo(info);
 439     m_viewAccessor.itemDelegate()->setShowInformation(info);
 440
 441     emit additionalInfoChanged();
 442
 443     if (m_viewAccessor.reloadOnAdditionalInfoChange()) {
 444         loadDirectory(viewPropsUrl);
 445     }
 446 }
 447
 448 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 449 {
 450     return m_viewAccessor.itemDelegate()->showInformation();
 451 }
 452
 453 void DolphinView::reload()
 454 {
 455     QByteArray viewState;
 456     QDataStream saveStream(&viewState, QIODevice::WriteOnly);
 457     saveState(saveStream);
 458     m_selectedItems= selectedItems();
 459
 460     setUrl(url());
 461     loadDirectory(url(), true);
 462
 463     QDataStream restoreStream(viewState);
 464     restoreState(restoreStream);
 465 }
 466
 467 void DolphinView::refresh()
 468 {
 469     m_ignoreViewProperties = false;
 470
 471     const bool oldActivationState = m_active;
 472     const int oldZoomLevel = m_controller->zoomLevel();
 473     m_active = true;
 474
 475     createView();
 476     applyViewProperties();
 477     reload();
 478
 479     setActive(oldActivationState);
 480     updateZoomLevel(oldZoomLevel);
 481 }
 482
 483 void DolphinView::updateView(const KUrl& url, const KUrl& rootUrl)
 484 {
 485     Q_UNUSED(rootUrl); // TODO: remove after columnview-cleanup has been finished
 486
 487     if (m_controller->url() == url) {
 488         return;
 489     }
 490
 491     m_controller->setUrl(url); // emits urlChanged, which we forward
 492     m_viewAccessor.prepareUrlChange(url);
 493     applyViewProperties();
 494     loadDirectory(url);
 495
 496     // When changing the URL there is no need to keep the version
 497     // data of the previous URL.
 498     m_viewAccessor.dirModel()->clearVersionData();
 499
 500     emit startedPathLoading(url);
 501 }
 502
 503 void DolphinView::setNameFilter(const QString& nameFilter)
 504 {
 505     m_controller->setNameFilter(nameFilter);
 506 }
 507
 508 void DolphinView::calculateItemCount(int& fileCount,
 509                                      int& folderCount,
 510                                      KIO::filesize_t& totalFileSize) const
 511 {
 512     foreach (const KFileItem& item, m_viewAccessor.dirLister()->items()) {
 513         if (item.isDir()) {
 514             ++folderCount;
 515         } else {
 516             ++fileCount;
 517             totalFileSize += item.size();
 518         }
 519     }
 520 }
 521
 522 QString DolphinView::statusBarText() const
 523 {
 524     QString text;
 525     int folderCount = 0;
 526     int fileCount = 0;
 527     KIO::filesize_t totalFileSize = 0;
 528
 529     if (hasSelection()) {
 530         // give a summary of the status of the selected files
 531         const KFileItemList list = selectedItems();
 532         if (list.isEmpty()) {
 533             // when an item is triggered, it is temporary selected but selectedItems()
 534             // will return an empty list
 535             return text;
 536         }
 537
 538         KFileItemList::const_iterator it = list.begin();
 539         const KFileItemList::const_iterator end = list.end();
 540         while (it != end) {
 541             const KFileItem& item = *it;
 542             if (item.isDir()) {
 543                 ++folderCount;
 544             } else {
 545                 ++fileCount;
 546                 totalFileSize += item.size();
 547             }
 548             ++it;
 549         }
 550
 551         if (folderCount + fileCount == 1) {
 552             // if only one item is selected, show the filename
 553             const QString name = list.first().name();
 554             text = (folderCount == 1) ? i18nc("@info:status", "<filename>%1</filename> selected", name) :
 555                                         i18nc("@info:status", "<filename>%1</filename> selected (%2)",
 556                                               name, KIO::convertSize(totalFileSize));
 557         } else {
 558             // at least 2 items are selected
 559             const QString foldersText = i18ncp("@info:status", "1 Folder selected", "%1 Folders selected", folderCount);
 560             const QString filesText = i18ncp("@info:status", "1 File selected", "%1 Files selected", fileCount);
 561             if ((folderCount > 0) && (fileCount > 0)) {
 562                 text = i18nc("@info:status folders, files (size)", "%1, %2 (%3)",
 563                              foldersText, filesText, KIO::convertSize(totalFileSize));
 564             } else if (fileCount > 0) {
 565                 text = i18nc("@info:status files (size)", "%1 (%2)", filesText, KIO::convertSize(totalFileSize));
 566             } else {
 567                 Q_ASSERT(folderCount > 0);
 568                 text = foldersText;
 569             }
 570         }
 571     } else {
 572         calculateItemCount(fileCount, folderCount, totalFileSize);
 573         text = KIO::itemsSummaryString(fileCount + folderCount,
 574                                        fileCount, folderCount,
 575                                        totalFileSize, true);
 576     }
 577
 578     return text;
 579 }
 580
 581 QList<QAction*> DolphinView::versionControlActions(const KFileItemList& items) const
 582 {
 583     return m_controller->versionControlActions(items);
 584 }
 585
 586 void DolphinView::setUrl(const KUrl& url)
 587 {
 588     m_newFileNames.clear();
 589     updateView(url, KUrl());
 590 }
 591
 592 void DolphinView::selectAll()
 593 {
 594     m_viewAccessor.itemView()->selectAll();
 595 }
 596
 597 void DolphinView::invertSelection()
 598 {
 599     QItemSelectionModel* selectionModel = m_viewAccessor.itemView()->selectionModel();
 600     const QAbstractItemModel* itemModel = selectionModel->model();
 601
 602     const QModelIndex topLeft = itemModel->index(0, 0);
 603     const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 604                                                      itemModel->columnCount() - 1);
 605
 606     const QItemSelection selection(topLeft, bottomRight);
 607     selectionModel->select(selection, QItemSelectionModel::Toggle);
 608 }
 609
 610 void DolphinView::clearSelection()
 611 {
 612     m_viewAccessor.itemView()->clearSelection();
 613 }
 614
 615 void DolphinView::renameSelectedItems()
 616 {
 617     KFileItemList items = selectedItems();
 618     const int itemCount = items.count();
 619     if (itemCount < 1) {
 620         return;
 621     }
 622
 623     if (itemCount > 1) {
 624         // More than one item has been selected for renaming. Open
 625         // a rename dialog and rename all items afterwards.
 626         QPointer<RenameDialog> dialog = new RenameDialog(this, items);
 627         if (dialog->exec() == QDialog::Rejected) {
 628             delete dialog;
 629             return;
 630         }
 631
 632         const QString newName = dialog->newName();
 633         if (newName.isEmpty()) {
 634             emit errorMessage(dialog->errorString());
 635             delete dialog;
 636             return;
 637         }
 638         delete dialog;
 639
 640         // the selection would be invalid after renaming the items, so just clear
 641         // it before
 642         clearSelection();
 643
 644         // TODO: check how this can be integrated into KIO::FileUndoManager/KonqOperations
 645         // as one operation instead of n rename operations like it is done now...
 646         Q_ASSERT(newName.contains('#'));
 647
 648         // currently the items are sorted by the selection order, resort
 649         // them by the file name
 650         qSort(items.begin(), items.end(), lessThan);
 651
 652         // iterate through all selected items and rename them...
 653         int index = 1;
 654         foreach (const KFileItem& item, items) {
 655             const KUrl& oldUrl = item.url();
 656             QString number;
 657             number.setNum(index++);
 658
 659             QString name = newName;
 660             name.replace('#', number);
 661
 662             if (oldUrl.fileName() != name) {
 663                 KUrl newUrl = oldUrl;
 664                 newUrl.setFileName(name);
 665                 KonqOperations::rename(this, oldUrl, newUrl);
 666             }
 667         }
 668     } else if (DolphinSettings::instance().generalSettings()->renameInline()) {
 669         Q_ASSERT(itemCount == 1);
 670         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForItem(items.first());
 671         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
 672         m_viewAccessor.itemView()->edit(proxyIndex);
 673     } else {
 674         Q_ASSERT(itemCount == 1);
 675
 676         QPointer<RenameDialog> dialog = new RenameDialog(this, items);
 677         if (dialog->exec() == QDialog::Rejected) {
 678             delete dialog;
 679             return;
 680         }
 681
 682         const QString newName = dialog->newName();
 683         if (newName.isEmpty()) {
 684             emit errorMessage(dialog->errorString());
 685             delete dialog;
 686             return;
 687         }
 688         delete dialog;
 689
 690         const KUrl& oldUrl = items.first().url();
 691         KUrl newUrl = oldUrl;
 692         newUrl.setFileName(newName);
 693         KonqOperations::rename(this, oldUrl, newUrl);
 694     }
 695
 696     // assure that the current index remains visible when KDirLister
 697     // will notify the view about changed items
 698     m_assureVisibleCurrentIndex = true;
 699 }
 700
 701 void DolphinView::trashSelectedItems()
 702 {
 703     const KUrl::List list = simplifiedSelectedUrls();
 704     KonqOperations::del(this, KonqOperations::TRASH, list);
 705 }
 706
 707 void DolphinView::deleteSelectedItems()
 708 {
 709     const KUrl::List list = simplifiedSelectedUrls();
 710     const bool del = KonqOperations::askDeleteConfirmation(list,
 711                      KonqOperations::DEL,
 712                      KonqOperations::DEFAULT_CONFIRMATION,
 713                      this);
 714
 715     if (del) {
 716         KIO::Job* job = KIO::del(list);
 717         connect(job, SIGNAL(result(KJob*)),
 718                 this, SLOT(slotDeleteFileFinished(KJob*)));
 719     }
 720 }
 721
 722 void DolphinView::cutSelectedItems()
 723 {
 724     QMimeData* mimeData = selectionMimeData();
 725     KonqMimeData::addIsCutSelection(mimeData, true);
 726     QApplication::clipboard()->setMimeData(mimeData);
 727 }
 728
 729 void DolphinView::copySelectedItems()
 730 {
 731     QMimeData* mimeData = selectionMimeData();
 732     QApplication::clipboard()->setMimeData(mimeData);
 733 }
 734
 735 void DolphinView::paste()
 736 {
 737     pasteToUrl(url());
 738 }
 739
 740 void DolphinView::pasteIntoFolder()
 741 {
 742     const KFileItemList items = selectedItems();
 743     if ((items.count() == 1) && items.first().isDir()) {
 744         pasteToUrl(items.first().url());
 745     }
 746 }
 747
 748 void DolphinView::setShowPreview(bool show)
 749 {
 750     if (m_showPreview == show) {
 751         return;
 752     }
 753
 754     const KUrl viewPropsUrl = rootUrl();
 755     ViewProperties props(viewPropsUrl);
 756     props.setShowPreview(show);
 757
 758     m_showPreview = show;
 759     const int oldZoomLevel = m_controller->zoomLevel();
 760     emit showPreviewChanged();
 761
 762     // Enabling or disabling the preview might change the icon size of the view.
 763     // As the view does not emit a signal when the icon size has been changed,
 764     // the used zoom level of the controller must be adjusted manually:
 765     updateZoomLevel(oldZoomLevel);
 766 }
 767
 768 void DolphinView::setShowHiddenFiles(bool show)
 769 {
 770     if (m_viewAccessor.dirLister()->showingDotFiles() == show) {
 771         return;
 772     }
 773
 774     const KUrl viewPropsUrl = rootUrl();
 775     ViewProperties props(viewPropsUrl);
 776     props.setShowHiddenFiles(show);
 777
 778     m_viewAccessor.dirLister()->setShowingDotFiles(show);
 779     emit showHiddenFilesChanged();
 780 }
 781
 782 void DolphinView::setCategorizedSorting(bool categorized)
 783 {
 784     if (categorized == categorizedSorting()) {
 785         return;
 786     }
 787
 788     // setCategorizedSorting(true) may only get invoked
 789     // if the view supports categorized sorting
 790     Q_ASSERT(!categorized || supportsCategorizedSorting());
 791
 792     ViewProperties props(rootUrl());
 793     props.setCategorizedSorting(categorized);
 794     props.save();
 795
 796     m_storedCategorizedSorting = categorized;
 797     m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 798
 799     emit categorizedSortingChanged();
 800 }
 801
 802 void DolphinView::toggleSortOrder()
 803 {
 804     const Qt::SortOrder order = (sortOrder() == Qt::AscendingOrder) ?
 805                                 Qt::DescendingOrder :
 806                                 Qt::AscendingOrder;
 807     setSortOrder(order);
 808 }
 809
 810 void DolphinView::toggleSortFoldersFirst()
 811 {
 812     setSortFoldersFirst(!sortFoldersFirst());
 813 }
 814
 815 void DolphinView::toggleAdditionalInfo(QAction* action)
 816 {
 817     const KFileItemDelegate::Information info =
 818         static_cast<KFileItemDelegate::Information>(action->data().toInt());
 819
 820     KFileItemDelegate::InformationList list = additionalInfo();
 821
 822     const bool show = action->isChecked();
 823
 824     const int index = list.indexOf(info);
 825     const bool containsInfo = (index >= 0);
 826     if (show && !containsInfo) {
 827         list.append(info);
 828         setAdditionalInfo(list);
 829     } else if (!show && containsInfo) {
 830         list.removeAt(index);
 831         setAdditionalInfo(list);
 832         Q_ASSERT(list.indexOf(info) < 0);
 833     }
 834 }
 835
 836 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 837 {
 838     QWidget::mouseReleaseEvent(event);
 839     setActive(true);
 840 }
 841
 842 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 843 {
 844     switch (event->type()) {
 845     case QEvent::FocusIn:
 846         if (watched == m_viewAccessor.itemView()) {
 847             m_controller->requestActivation();
 848         }
 849         break;
 850
 851     case QEvent::DragEnter:
 852         if (watched == m_viewAccessor.itemView()->viewport()) {
 853             setActive(true);
 854         }
 855         break;
 856
 857     case QEvent::KeyPress:
 858         if (watched == m_viewAccessor.itemView()) {
 859             // clear the selection when Escape has been pressed
 860             QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
 861             if (keyEvent->key() == Qt::Key_Escape) {
 862                 clearSelection();
 863             }
 864         }
 865         break;
 866
 867     case QEvent::Wheel:
 868         if (watched == m_viewAccessor.itemView()->viewport()) {
 869             // Ctrl+wheel events should cause icon zooming, but not if the left mouse button is pressed
 870             // (the user is probably trying to scroll during a selection in that case)
 871             QWheelEvent* wheelEvent = static_cast<QWheelEvent*>(event);
 872             if (wheelEvent->modifiers() & Qt::ControlModifier && !(wheelEvent->buttons() & Qt::LeftButton)) {
 873                 const int delta = wheelEvent->delta();
 874                 const int level = zoomLevel();
 875                 if (delta > 0) {
 876                     setZoomLevel(level + 1);
 877                 } else if (delta < 0) {
 878                     setZoomLevel(level - 1);
 879                 }
 880                 return true;
 881             }
 882         }
 883         break;
 884
 885     default:
 886         break;
 887     }
 888
 889     return QWidget::eventFilter(watched, event);
 890 }
 891
 892 void DolphinView::activate()
 893 {
 894     setActive(true);
 895 }
 896
 897 void DolphinView::triggerItem(const KFileItem& item)
 898 {
 899     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 900     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 901         // items are selected by the user, hence don't trigger the
 902         // item specified by 'index'
 903         return;
 904     }
 905
 906     // TODO: the m_isContextMenuOpen check is a workaround for Qt-issue 207192
 907     if (item.isNull() || m_isContextMenuOpen) {
 908         return;
 909     }
 910
 911     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 912 }
 913
 914 void DolphinView::slotSelectionChanged(const QItemSelection& selected, const QItemSelection& deselected)
 915 {
 916     const int count = selectedItemsCount();
 917     const bool selectionStateChanged = ((count >  0) && (selected.count() == count)) ||
 918                                        ((count == 0) && !deselected.isEmpty());
 919
 920     // If nothing has been selected before and something got selected (or if something
 921     // was selected before and now nothing is selected) the selectionChangedSignal must
 922     // be emitted asynchronously as fast as possible to update the edit-actions.
 923     m_selectionChangedTimer->setInterval(selectionStateChanged ? 0 : 300);
 924     m_selectionChangedTimer->start();
 925 }
 926
 927 void DolphinView::emitSelectionChangedSignal()
 928 {
 929     emit selectionChanged(DolphinView::selectedItems());
 930 }
 931
 932 void DolphinView::openContextMenu(const QPoint& pos,
 933                                   const QList<QAction*>& customActions)
 934 {
 935     KFileItem item;
 936     const QModelIndex index = m_viewAccessor.itemView()->indexAt(pos);
 937     if (index.isValid() && (index.column() == DolphinModel::Name)) {
 938         const QModelIndex dolphinModelIndex = m_viewAccessor.proxyModel()->mapToSource(index);
 939         item = m_viewAccessor.dirModel()->itemForIndex(dolphinModelIndex);
 940     }
 941
 942     m_isContextMenuOpen = true; // TODO: workaround for Qt-issue 207192
 943     emit requestContextMenu(item, url(), customActions);
 944     m_isContextMenuOpen = false;
 945 }
 946
 947 void DolphinView::dropUrls(const KFileItem& destItem,
 948                            const KUrl& destPath,
 949                            QDropEvent* event)
 950 {
 951     addNewFileNames(event->mimeData());
 952     DragAndDropHelper::instance().dropUrls(destItem, destPath, event, this);
 953 }
 954
 955 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 956 {
 957     ViewProperties props(rootUrl());
 958     props.setSorting(sorting);
 959
 960     m_viewAccessor.proxyModel()->setSorting(sorting);
 961
 962     emit sortingChanged(sorting);
 963 }
 964
 965 void DolphinView::updateSortOrder(Qt::SortOrder order)
 966 {
 967     ViewProperties props(rootUrl());
 968     props.setSortOrder(order);
 969
 970     m_viewAccessor.proxyModel()->setSortOrder(order);
 971
 972     emit sortOrderChanged(order);
 973 }
 974
 975 void DolphinView::updateSortFoldersFirst(bool foldersFirst)
 976 {
 977     ViewProperties props(rootUrl());
 978     props.setSortFoldersFirst(foldersFirst);
 979
 980     m_viewAccessor.proxyModel()->setSortFoldersFirst(foldersFirst);
 981
 982     emit sortFoldersFirstChanged(foldersFirst);
 983 }
 984
 985 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 986 {
 987     ViewProperties props(rootUrl());
 988     props.setAdditionalInfo(info);
 989     props.save();
 990
 991     m_viewAccessor.itemDelegate()->setShowInformation(info);
 992
 993     emit additionalInfoChanged();
 994 }
 995
 996 void DolphinView::updateAdditionalInfoActions(KActionCollection* collection)
 997 {
 998     const bool enable = (m_mode == DolphinView::DetailsView) ||
 999                         (m_mode == DolphinView::IconsView);
1000
1001     QAction* showSizeInfo = collection->action("show_size_info");
1002     QAction* showDateInfo = collection->action("show_date_info");
1003     QAction* showPermissionsInfo = collection->action("show_permissions_info");
1004     QAction* showOwnerInfo = collection->action("show_owner_info");
1005     QAction* showGroupInfo = collection->action("show_group_info");
1006     QAction* showMimeInfo = collection->action("show_mime_info");
1007
1008     showSizeInfo->setChecked(false);
1009     showDateInfo->setChecked(false);
1010     showPermissionsInfo->setChecked(false);
1011     showOwnerInfo->setChecked(false);
1012     showGroupInfo->setChecked(false);
1013     showMimeInfo->setChecked(false);
1014
1015     showSizeInfo->setEnabled(enable);
1016     showDateInfo->setEnabled(enable);
1017     showPermissionsInfo->setEnabled(enable);
1018     showOwnerInfo->setEnabled(enable);
1019     showGroupInfo->setEnabled(enable);
1020     showMimeInfo->setEnabled(enable);
1021
1022     foreach (KFileItemDelegate::Information info, m_viewAccessor.itemDelegate()->showInformation()) {
1023         switch (info) {
1024         case KFileItemDelegate::Size:
1025             showSizeInfo->setChecked(true);
1026             break;
1027         case KFileItemDelegate::ModificationTime:
1028             showDateInfo->setChecked(true);
1029             break;
1030         case KFileItemDelegate::Permissions:
1031             showPermissionsInfo->setChecked(true);
1032             break;
1033         case KFileItemDelegate::Owner:
1034             showOwnerInfo->setChecked(true);
1035             break;
1036         case KFileItemDelegate::OwnerAndGroup:
1037             showGroupInfo->setChecked(true);
1038             break;
1039         case KFileItemDelegate::FriendlyMimeType:
1040             showMimeInfo->setChecked(true);
1041             break;
1042         default:
1043             break;
1044         }
1045     }
1046 }
1047
1048 QPair<bool, QString> DolphinView::pasteInfo() const
1049 {
1050     return KonqOperations::pasteInfo(url());
1051 }
1052
1053 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
1054 {
1055     m_tabsForFiles = tabsForFiles;
1056 }
1057
1058 bool DolphinView::isTabsForFilesEnabled() const
1059 {
1060     return m_tabsForFiles;
1061 }
1062
1063 void DolphinView::activateItem(const KUrl& url)
1064 {
1065     // TODO: If DolphinViewContainer uses DolphinView::restoreState(...) to restore the
1066     // view state in KDE 4.5, this function can be removed.
1067     m_activeItemUrl = url;
1068 }
1069
1070 bool DolphinView::itemsExpandable() const
1071 {
1072     return m_viewAccessor.itemsExpandable();
1073 }
1074
1075 void DolphinView::restoreState(QDataStream &stream)
1076 {
1077      // current item
1078     stream >> m_activeItemUrl;
1079
1080     // view position
1081     stream >> m_restoredContentsPosition;
1082
1083     // expanded folders (only relevant for the details view - will be ignored by the view in other view modes)
1084     QSet<KUrl> urlsToExpand;
1085     stream >> urlsToExpand;
1086     const DolphinDetailsViewExpander* expander = m_viewAccessor.setExpandedUrls(urlsToExpand);
1087
1088     if (expander) {
1089         m_expanderActive = true;
1090         connect (expander, SIGNAL(completed()), this, SLOT(slotLoadingCompleted()));
1091     }
1092     else {
1093         m_expanderActive = false;
1094     }
1095 }
1096
1097 void DolphinView::saveState(QDataStream &stream)
1098 {
1099     // current item
1100     KFileItem currentItem;
1101     const QAbstractItemView* view = m_viewAccessor.itemView();
1102
1103     if(view) {
1104         const QModelIndex proxyIndex = view->currentIndex();
1105         const QModelIndex dirModelIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
1106         currentItem = m_viewAccessor.dirModel()->itemForIndex(dirModelIndex);
1107     }
1108
1109     KUrl currentUrl;
1110     if (!currentItem.isNull())
1111         currentUrl = currentItem.url();
1112
1113     stream << currentUrl;
1114
1115     // view position
1116     stream << contentsPosition();
1117
1118     // expanded folders (only relevant for the details view - the set will be empty in other view modes)
1119     stream << m_viewAccessor.expandedUrls();
1120 }
1121
1122 void DolphinView::observeCreatedItem(const KUrl& url)
1123 {
1124     m_createdItemUrl = url;
1125     connect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
1126             this, SLOT(selectAndScrollToCreatedItem()));
1127 }
1128
1129 void DolphinView::selectAndScrollToCreatedItem()
1130 {
1131     const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_createdItemUrl);
1132     if (dirIndex.isValid()) {
1133         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1134         m_viewAccessor.itemView()->setCurrentIndex(proxyIndex);
1135     }
1136
1137     disconnect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
1138                this, SLOT(selectAndScrollToCreatedItem()));
1139     m_createdItemUrl = KUrl();
1140 }
1141
1142 void DolphinView::emitContentsMoved()
1143 {
1144     // TODO: If DolphinViewContainer uses DolphinView::saveState(...) to save the
1145     // view state in KDE 4.5, the contentsMoved signal might not be needed anymore,
1146     // depending on how the implementation is done.
1147     // In that case, the code in contentsPosition() can be moved to saveState().
1148
1149     // only emit the contents moved signal if no directory loading is ongoing
1150     // (this would reset the contents position always to (0, 0))
1151     if (!m_loadingDirectory) {
1152         const QPoint pos(contentsPosition());
1153         emit contentsMoved(pos.x(), pos.y());
1154     }
1155 }
1156
1157 void DolphinView::showHoverInformation(const KFileItem& item)
1158 {
1159     emit requestItemInfo(item);
1160 }
1161
1162 void DolphinView::clearHoverInformation()
1163 {
1164     emit requestItemInfo(KFileItem());
1165 }
1166
1167 void DolphinView::slotDeleteFileFinished(KJob* job)
1168 {
1169     if (job->error() == 0) {
1170         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1171     } else if (job->error() != KIO::ERR_USER_CANCELED) {
1172         emit errorMessage(job->errorString());
1173     }
1174 }
1175
1176 void DolphinView::slotRequestUrlChange(const KUrl& url)
1177 {
1178     emit requestUrlChange(url);
1179     m_controller->setUrl(url);
1180 }
1181
1182 void DolphinView::slotDirListerCompleted()
1183 {
1184     if (!m_expanderActive) {
1185         slotLoadingCompleted();
1186     }
1187
1188     if (!m_newFileNames.isEmpty()) {
1189         // select all newly added items created by a paste operation or
1190         // a drag & drop operation
1191         const int rowCount = m_viewAccessor.proxyModel()->rowCount();
1192         QItemSelection selection;
1193         for (int row = 0; row < rowCount; ++row) {
1194             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->index(row, 0);
1195             const QModelIndex dirIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
1196             const KUrl url = m_viewAccessor.dirModel()->itemForIndex(dirIndex).url();
1197             if (m_newFileNames.contains(url.fileName())) {
1198                 selection.merge(QItemSelection(proxyIndex, proxyIndex), QItemSelectionModel::Select);
1199             }
1200         }
1201         m_viewAccessor.itemView()->selectionModel()->select(selection, QItemSelectionModel::Select);
1202
1203         m_newFileNames.clear();
1204     }
1205 }
1206
1207 void DolphinView::slotLoadingCompleted()
1208 {
1209     m_expanderActive = false;
1210     m_loadingDirectory = false;
1211
1212     if (!m_activeItemUrl.isEmpty()) {
1213         // assure that the current item remains visible
1214         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_activeItemUrl);
1215         if (dirIndex.isValid()) {
1216             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1217             QAbstractItemView* view = m_viewAccessor.itemView();
1218             const bool clearSelection = !hasSelection();
1219             view->setCurrentIndex(proxyIndex);
1220             if (clearSelection) {
1221                 view->clearSelection();
1222             }
1223             m_activeItemUrl.clear();
1224         }
1225     }
1226
1227     if (!m_selectedItems.isEmpty()) {
1228         const KUrl& baseUrl = url();
1229         KUrl url;
1230         QItemSelection newSelection;
1231         foreach(const KFileItem& item, m_selectedItems) {
1232             url = item.url().upUrl();
1233             if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
1234                 QModelIndex index = m_viewAccessor.proxyModel()->mapFromSource(m_viewAccessor.dirModel()->indexForItem(item));
1235                 newSelection.select(index, index);
1236             }
1237         }
1238         m_viewAccessor.itemView()->selectionModel()->select(newSelection,
1239                                                             QItemSelectionModel::ClearAndSelect
1240                                                             | QItemSelectionModel::Current);
1241         m_selectedItems.clear();
1242     }
1243
1244     // Restore the contents position. This has to be done using a Qt::QueuedConnection
1245     // because the view might not be in its final state yet.
1246     QMetaObject::invokeMethod(this, "restoreContentsPosition", Qt::QueuedConnection);
1247 }
1248
1249 void DolphinView::slotRefreshItems()
1250 {
1251     if (m_assureVisibleCurrentIndex) {
1252         m_assureVisibleCurrentIndex = false;
1253         m_viewAccessor.itemView()->scrollTo(m_viewAccessor.itemView()->currentIndex());
1254     }
1255 }
1256
1257 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1258 {
1259     if (!url.isValid()) {
1260         const QString location(url.pathOrUrl());
1261         if (location.isEmpty()) {
1262             emit errorMessage(i18nc("@info:status", "The location is empty."));
1263         } else {
1264             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1265         }
1266         return;
1267     }
1268
1269     m_loadingDirectory = true;
1270     m_expanderActive = false;
1271
1272     KDirLister* dirLister = m_viewAccessor.dirLister();
1273     dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
1274
1275     KDirLister* rootDirLister = m_viewAccessor.rootDirLister();
1276     if (dirLister != rootDirLister) {
1277         // In the case of the column view the root directory lister can be different. Assure
1278         // that it gets synchronized (clients from DolphinView are not aware that internally
1279         // different directory listers are used).
1280         rootDirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
1281     }
1282 }
1283
1284 void DolphinView::applyViewProperties()
1285 {
1286     if (m_ignoreViewProperties) {
1287         return;
1288     }
1289
1290     const ViewProperties props(rootUrl());
1291
1292     const Mode mode = props.viewMode();
1293     if (m_mode != mode) {
1294         const int oldZoomLevel = m_controller->zoomLevel();
1295
1296         m_mode = mode;
1297         createView();
1298         emit modeChanged();
1299
1300         updateZoomLevel(oldZoomLevel);
1301     }
1302     if (m_viewAccessor.itemView() == 0) {
1303         createView();
1304     }
1305     Q_ASSERT(m_viewAccessor.itemView() != 0);
1306     Q_ASSERT(m_viewAccessor.itemDelegate() != 0);
1307
1308     const bool showHiddenFiles = props.showHiddenFiles();
1309     if (showHiddenFiles != m_viewAccessor.dirLister()->showingDotFiles()) {
1310         m_viewAccessor.dirLister()->setShowingDotFiles(showHiddenFiles);
1311         emit showHiddenFilesChanged();
1312     }
1313
1314     m_storedCategorizedSorting = props.categorizedSorting();
1315     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1316     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
1317         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
1318         emit categorizedSortingChanged();
1319     }
1320
1321     const DolphinView::Sorting sorting = props.sorting();
1322     if (sorting != m_viewAccessor.proxyModel()->sorting()) {
1323         m_viewAccessor.proxyModel()->setSorting(sorting);
1324         emit sortingChanged(sorting);
1325     }
1326
1327     const Qt::SortOrder sortOrder = props.sortOrder();
1328     if (sortOrder != m_viewAccessor.proxyModel()->sortOrder()) {
1329         m_viewAccessor.proxyModel()->setSortOrder(sortOrder);
1330         emit sortOrderChanged(sortOrder);
1331     }
1332
1333     const bool sortFoldersFirst = props.sortFoldersFirst();
1334     if (sortFoldersFirst != m_viewAccessor.proxyModel()->sortFoldersFirst()) {
1335         m_viewAccessor.proxyModel()->setSortFoldersFirst(sortFoldersFirst);
1336         emit sortFoldersFirstChanged(sortFoldersFirst);
1337     }
1338
1339     KFileItemDelegate::InformationList info = props.additionalInfo();
1340     if (info != m_viewAccessor.itemDelegate()->showInformation()) {
1341         m_viewAccessor.itemDelegate()->setShowInformation(info);
1342         emit additionalInfoChanged();
1343     }
1344
1345     const bool showPreview = props.showPreview();
1346     if (showPreview != m_showPreview) {
1347         m_showPreview = showPreview;
1348         const int oldZoomLevel = m_controller->zoomLevel();
1349         emit showPreviewChanged();
1350
1351         // Enabling or disabling the preview might change the icon size of the view.
1352         // As the view does not emit a signal when the icon size has been changed,
1353         // the used zoom level of the controller must be adjusted manually:
1354         updateZoomLevel(oldZoomLevel);
1355     }
1356
1357     if (DolphinSettings::instance().generalSettings()->globalViewProps()) {
1358         // During the lifetime of a DolphinView instance the global view properties
1359         // should not be changed. This allows e. g. to split a view and use different
1360         // view properties for each view.
1361         m_ignoreViewProperties = true;
1362     }
1363 }
1364
1365 void DolphinView::createView()
1366 {
1367     deleteView();
1368
1369     Q_ASSERT(m_viewAccessor.itemView() == 0);
1370     m_viewAccessor.createView(this, m_controller, m_mode);
1371
1372     QAbstractItemView* view = m_viewAccessor.itemView();
1373     Q_ASSERT(view != 0);
1374     view->installEventFilter(this);
1375     view->viewport()->installEventFilter(this);
1376
1377     m_controller->setItemView(view);
1378
1379     // When changing the view mode, the selection is lost due to reinstantiating
1380     // a new item view with a custom selection model. Pass the ownership of the
1381     // selection model to DolphinView, so that it can be shared by all item views.
1382     if (m_selectionModel != 0) {
1383         view->setSelectionModel(m_selectionModel);
1384     } else {
1385         m_selectionModel = view->selectionModel();
1386     }
1387     m_selectionModel->setParent(this);
1388     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
1389             this, SLOT(slotSelectionChanged(const QItemSelection&, const QItemSelection&)));
1390
1391     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
1392             this, SLOT(emitContentsMoved()));
1393     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
1394             this, SLOT(emitContentsMoved()));
1395
1396     setFocusProxy(m_viewAccessor.layoutTarget());
1397     m_topLayout->insertWidget(1, m_viewAccessor.layoutTarget());
1398 }
1399
1400 void DolphinView::deleteView()
1401 {
1402     QAbstractItemView* view = m_viewAccessor.itemView();
1403     if (view != 0) {
1404         // It's important to set the keyboard focus to the parent
1405         // before deleting the view: Otherwise when having a split
1406         // view the other view will get the focus and will request
1407         // an activation (see DolphinView::eventFilter()).
1408         setFocusProxy(0);
1409         setFocus();
1410
1411         m_topLayout->removeWidget(view);
1412         view->close();
1413
1414         // disconnect all signal/slots
1415         disconnect(view);
1416         m_controller->disconnect(view);
1417         view->disconnect();
1418         disconnect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
1419                    this, SLOT(emitContentsMoved()));
1420         disconnect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
1421                    this, SLOT(emitContentsMoved()));
1422
1423         m_viewAccessor.deleteView();
1424     }
1425 }
1426
1427 void DolphinView::pasteToUrl(const KUrl& url)
1428 {
1429     addNewFileNames(QApplication::clipboard()->mimeData());
1430     KonqOperations::doPaste(this, url);
1431 }
1432
1433 void DolphinView::updateZoomLevel(int oldZoomLevel)
1434 {
1435     const int newZoomLevel = ZoomLevelInfo::zoomLevelForIconSize(m_viewAccessor.itemView()->iconSize());
1436     if (oldZoomLevel != newZoomLevel) {
1437         m_controller->setZoomLevel(newZoomLevel);
1438         emit zoomLevelChanged(newZoomLevel);
1439     }
1440 }
1441
1442 KUrl::List DolphinView::simplifiedSelectedUrls() const
1443 {
1444     KUrl::List list = selectedUrls();
1445     if (itemsExpandable() ) {
1446         list = KDirModel::simplifiedUrlList(list);
1447     }
1448     return list;
1449 }
1450
1451 QMimeData* DolphinView::selectionMimeData() const
1452 {
1453     const QAbstractItemView* view = m_viewAccessor.itemView();
1454     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
1455     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
1456     return m_viewAccessor.dirModel()->mimeData(selection.indexes());
1457 }
1458
1459 void DolphinView::addNewFileNames(const QMimeData* mimeData)
1460 {
1461     const KUrl::List urls = KUrl::List::fromMimeData(mimeData);
1462     foreach (const KUrl& url, urls) {
1463         m_newFileNames.insert(url.fileName());
1464     }
1465 }
1466
1467 DolphinView::ViewAccessor::ViewAccessor(DolphinSortFilterProxyModel* proxyModel) :
1468     m_iconsView(0),
1469     m_detailsView(0),
1470     m_columnsContainer(0),
1471     m_proxyModel(proxyModel),
1472     m_dragSource(0)
1473 {
1474 }
1475
1476 DolphinView::ViewAccessor::~ViewAccessor()
1477 {
1478     delete m_dragSource;
1479     m_dragSource = 0;
1480 }
1481
1482 void DolphinView::ViewAccessor::createView(QWidget* parent,
1483                                            DolphinController* controller,
1484                                            Mode mode)
1485 {
1486     Q_ASSERT(itemView() == 0);
1487
1488     switch (mode) {
1489     case IconsView:
1490         m_iconsView = new DolphinIconsView(parent, controller, m_proxyModel);
1491         break;
1492
1493     case DetailsView:
1494         m_detailsView = new DolphinDetailsView(parent, controller, m_proxyModel);
1495         break;
1496
1497     case ColumnView:
1498         m_columnsContainer = new DolphinColumnViewContainer(parent, controller);
1499         break;
1500
1501     default:
1502         Q_ASSERT(false);
1503     }
1504 }
1505
1506 void DolphinView::ViewAccessor::deleteView()
1507 {
1508     QAbstractItemView* view = itemView();
1509     if (view != 0) {
1510         if (DragAndDropHelper::instance().isDragSource(view)) {
1511             // The view is a drag source (the feature "Open folders
1512             // during drag operations" is used). Deleting the view
1513             // during an ongoing drag operation is not allowed, so
1514             // this will postponed.
1515             if (m_dragSource != 0) {
1516                 // the old stored view is obviously not the drag source anymore
1517                 m_dragSource->deleteLater();
1518                 m_dragSource = 0;
1519             }
1520             view->hide();
1521             m_dragSource = view;
1522         } else {
1523             view->deleteLater();
1524         }
1525     }
1526
1527     m_iconsView = 0;
1528     m_detailsView = 0;
1529
1530     if (m_columnsContainer != 0) {
1531         m_columnsContainer->deleteLater();
1532     }
1533     m_columnsContainer = 0;
1534 }
1535
1536
1537 void DolphinView::ViewAccessor::prepareUrlChange(const KUrl& url)
1538 {
1539     if (m_columnsContainer != 0) {
1540         m_columnsContainer->showColumn(url);
1541     }
1542
1543     if(!m_detailsViewExpander.isNull()) {
1544         // stop expanding items in the current folder
1545         m_detailsViewExpander->stop();
1546     }
1547 }
1548
1549 QAbstractItemView* DolphinView::ViewAccessor::itemView() const
1550 {
1551     if (m_iconsView != 0) {
1552         return m_iconsView;
1553     }
1554
1555     if (m_detailsView != 0) {
1556         return m_detailsView;
1557     }
1558
1559     if (m_columnsContainer != 0) {
1560         return m_columnsContainer->activeColumn();
1561     }
1562
1563     return 0;
1564 }
1565
1566 KFileItemDelegate* DolphinView::ViewAccessor::itemDelegate() const
1567 {
1568     return static_cast<KFileItemDelegate*>(itemView()->itemDelegate());
1569 }
1570
1571 QWidget* DolphinView::ViewAccessor::layoutTarget() const
1572 {
1573     if (m_columnsContainer != 0) {
1574         return m_columnsContainer;
1575     }
1576     return itemView();
1577 }
1578
1579 KUrl DolphinView::ViewAccessor::rootUrl() const
1580 {
1581     return (m_columnsContainer != 0) ? m_columnsContainer->rootUrl() : KUrl();
1582 }
1583
1584 KDirLister* DolphinView::ViewAccessor::rootDirLister() const
1585 {
1586     return static_cast<DolphinModel*>(m_proxyModel->sourceModel())->dirLister();
1587 }
1588
1589 bool DolphinView::ViewAccessor::supportsCategorizedSorting() const
1590 {
1591     return m_iconsView != 0;
1592 }
1593
1594 bool DolphinView::ViewAccessor::itemsExpandable() const
1595 {
1596     return (m_detailsView != 0) && m_detailsView->itemsExpandable();
1597 }
1598
1599
1600 QSet<KUrl> DolphinView::ViewAccessor::expandedUrls() const
1601 {
1602     if (m_detailsView != 0) {
1603         return m_detailsView->expandedUrls();
1604     }
1605
1606     return QSet<KUrl>();
1607 }
1608
1609 const DolphinDetailsViewExpander* DolphinView::ViewAccessor::setExpandedUrls(const QSet<KUrl>& urlsToExpand)
1610 {
1611     if ((m_detailsView != 0) && m_detailsView->itemsExpandable() && !urlsToExpand.isEmpty()) {
1612         m_detailsViewExpander = new DolphinDetailsViewExpander(m_detailsView, urlsToExpand);
1613         return m_detailsViewExpander;
1614     }
1615     else {
1616         return 0;
1617     }
1618 }
1619
1620 bool DolphinView::ViewAccessor::reloadOnAdditionalInfoChange() const
1621 {
1622     // the details view requires no reloading of the directory, as it maps
1623     // the file item delegate info to its columns internally
1624     return m_detailsView != 0;
1625 }
1626
1627 DolphinModel* DolphinView::ViewAccessor::dirModel() const
1628 {
1629     return static_cast<DolphinModel*>(proxyModel()->sourceModel());
1630 }
1631
1632 DolphinSortFilterProxyModel* DolphinView::ViewAccessor::proxyModel() const
1633 {
1634     if (m_columnsContainer != 0) {
1635         return static_cast<DolphinSortFilterProxyModel*>(m_columnsContainer->activeColumn()->model());
1636     }
1637     return m_proxyModel;
1638 }
1639
1640 KDirLister* DolphinView::ViewAccessor::dirLister() const
1641 {
1642     return dirModel()->dirLister();
1643 }
1644
1645 void DolphinView::slotRedirection(const KUrl& oldUrl, const KUrl& newUrl)
1646 {
1647     emit redirection(oldUrl, newUrl);
1648     m_controller->redirectToUrl(newUrl); // #186947
1649 }
1650
1651 void DolphinView::restoreContentsPosition()
1652 {
1653     if (!m_restoredContentsPosition.isNull()) {
1654         setContentsPosition(m_restoredContentsPosition.x(), m_restoredContentsPosition.y());
1655         m_restoredContentsPosition = QPoint();
1656     }
1657 }
1658
1659 #include "dolphinview.moc"