src/views/dolphinview.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006-2009 by Peter Penz <peter.penz19@gmail.com>        *
   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 <config-nepomuk.h>
  24
  25 #include <QAbstractItemView>
  26 #include <QApplication>
  27 #include <QBoxLayout>
  28 #include <QClipboard>
  29 #include <QDropEvent>
  30 #include <QGraphicsSceneDragDropEvent>
  31 #include <QKeyEvent>
  32 #include <QItemSelection>
  33 #include <QTimer>
  34 #include <QScrollBar>
  35
  36 #include <KDesktopFile>
  37 #include <KProtocolManager>
  38 #include <KActionCollection>
  39 #include <KColorScheme>
  40 #include <KDirModel>
  41 #include <KIconEffect>
  42 #include <KFileItem>
  43 #include <KFileItemListProperties>
  44 #include <KLocale>
  45 #include <kitemviews/kfileitemmodel.h>
  46 #include <kitemviews/kfileitemlistview.h>
  47 #include <kitemviews/kitemlistcontainer.h>
  48 #include <kitemviews/kitemlistheader.h>
  49 #include <kitemviews/kitemlistselectionmanager.h>
  50 #include <kitemviews/kitemlistview.h>
  51 #include <kitemviews/kitemlistcontroller.h>
  52 #include <KIO/DeleteJob>
  53 #include <KIO/JobUiDelegate>
  54 #include <KIO/NetAccess>
  55 #include <KIO/PreviewJob>
  56 #include <KJob>
  57 #include <KMenu>
  58 #include <KMessageBox>
  59 #include <konq_fileitemcapabilities.h>
  60 #include <konq_operations.h>
  61 #include <konqmimedata.h>
  62 #include <KToggleAction>
  63 #include <KUrl>
  64
  65 #include "dolphinnewfilemenuobserver.h"
  66 #include "dolphin_detailsmodesettings.h"
  67 #include "dolphin_generalsettings.h"
  68 #include "dolphinitemlistview.h"
  69 #include "draganddrophelper.h"
  70 #include "renamedialog.h"
  71 #include "versioncontrol/versioncontrolobserver.h"
  72 #include "viewmodecontroller.h"
  73 #include "viewproperties.h"
  74 #include "views/tooltips/tooltipmanager.h"
  75 #include "zoomlevelinfo.h"
  76
  77 #ifdef HAVE_NEPOMUK
  78     #include <Nepomuk2/ResourceManager>
  79 #endif
  80
  81 namespace {
  82     const int MaxModeEnum = DolphinView::CompactView;
  83 };
  84
  85 DolphinView::DolphinView(const KUrl& url, QWidget* parent) :
  86     QWidget(parent),
  87     m_active(true),
  88     m_tabsForFiles(false),
  89     m_assureVisibleCurrentIndex(false),
  90     m_isFolderWritable(true),
  91     m_dragging(false),
  92     m_url(url),
  93     m_viewPropertiesContext(),
  94     m_mode(DolphinView::IconsView),
  95     m_visibleRoles(),
  96     m_topLayout(0),
  97     m_model(0),
  98     m_view(0),
  99     m_container(0),
 100     m_toolTipManager(0),
 101     m_selectionChangedTimer(0),
 102     m_currentItemUrl(),
 103     m_scrollToCurrentItem(false),
 104     m_restoredContentsPosition(),
 105     m_selectedUrls(),
 106     m_clearSelectionBeforeSelectingNewItems(false),
 107     m_markFirstNewlySelectedItemAsCurrent(false),
 108     m_versionControlObserver(0)
 109 {
 110     m_topLayout = new QVBoxLayout(this);
 111     m_topLayout->setSpacing(0);
 112     m_topLayout->setMargin(0);
 113
 114     // When a new item has been created by the "Create New..." menu, the item should
 115     // get selected and it must be assured that the item will get visible. As the
 116     // creation is done asynchronously, several signals must be checked:
 117     connect(&DolphinNewFileMenuObserver::instance(), SIGNAL(itemCreated(KUrl)),
 118             this, SLOT(observeCreatedItem(KUrl)));
 119
 120     m_selectionChangedTimer = new QTimer(this);
 121     m_selectionChangedTimer->setSingleShot(true);
 122     m_selectionChangedTimer->setInterval(300);
 123     connect(m_selectionChangedTimer, SIGNAL(timeout()),
 124             this, SLOT(emitSelectionChangedSignal()));
 125
 126     m_model = new KFileItemModel(this);
 127     m_view = new DolphinItemListView();
 128     m_view->setEnabledSelectionToggles(GeneralSettings::showSelectionToggle());
 129     m_view->setVisibleRoles(QList<QByteArray>() << "text");
 130     applyModeToView();
 131
 132     KItemListController* controller = new KItemListController(m_model, m_view, this);
 133     const int delay = GeneralSettings::autoExpandFolders() ? 750 : -1;
 134     controller->setAutoActivationDelay(delay);
 135
 136     // The EnlargeSmallPreviews setting can only be changed after the model
 137     // has been set in the view by KItemListController.
 138     m_view->setEnlargeSmallPreviews(GeneralSettings::enlargeSmallPreviews());
 139
 140     m_container = new KItemListContainer(controller, this);
 141     m_container->installEventFilter(this);
 142     setFocusProxy(m_container);
 143     connect(m_container->horizontalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(hideToolTip()));
 144     connect(m_container->verticalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(hideToolTip()));
 145
 146     controller->setSelectionBehavior(KItemListController::MultiSelection);
 147     connect(controller, SIGNAL(itemActivated(int)), this, SLOT(slotItemActivated(int)));
 148     connect(controller, SIGNAL(itemsActivated(QSet<int>)), this, SLOT(slotItemsActivated(QSet<int>)));
 149     connect(controller, SIGNAL(itemMiddleClicked(int)), this, SLOT(slotItemMiddleClicked(int)));
 150     connect(controller, SIGNAL(itemContextMenuRequested(int,QPointF)), this, SLOT(slotItemContextMenuRequested(int,QPointF)));
 151     connect(controller, SIGNAL(viewContextMenuRequested(QPointF)), this, SLOT(slotViewContextMenuRequested(QPointF)));
 152     connect(controller, SIGNAL(headerContextMenuRequested(QPointF)), this, SLOT(slotHeaderContextMenuRequested(QPointF)));
 153     connect(controller, SIGNAL(mouseButtonPressed(int,Qt::MouseButtons)), this, SLOT(slotMouseButtonPressed(int,Qt::MouseButtons)));
 154     connect(controller, SIGNAL(itemHovered(int)), this, SLOT(slotItemHovered(int)));
 155     connect(controller, SIGNAL(itemUnhovered(int)), this, SLOT(slotItemUnhovered(int)));
 156     connect(controller, SIGNAL(itemDropEvent(int,QGraphicsSceneDragDropEvent*)), this, SLOT(slotItemDropEvent(int,QGraphicsSceneDragDropEvent*)));
 157     connect(controller, SIGNAL(escapePressed()), this, SLOT(stopLoading()));
 158     connect(controller, SIGNAL(modelChanged(KItemModelBase*,KItemModelBase*)), this, SLOT(slotModelChanged(KItemModelBase*,KItemModelBase*)));
 159
 160     connect(m_model, SIGNAL(directoryLoadingStarted()),       this, SLOT(slotDirectoryLoadingStarted()));
 161     connect(m_model, SIGNAL(directoryLoadingCompleted()),     this, SLOT(slotDirectoryLoadingCompleted()));
 162     connect(m_model, SIGNAL(directoryLoadingCanceled()),      this, SIGNAL(directoryLoadingCanceled()));
 163     connect(m_model, SIGNAL(directoryLoadingProgress(int)),   this, SIGNAL(directoryLoadingProgress(int)));
 164     connect(m_model, SIGNAL(directorySortingProgress(int)),   this, SIGNAL(directorySortingProgress(int)));
 165     connect(m_model, SIGNAL(itemsChanged(KItemRangeList,QSet<QByteArray>)),
 166             this, SLOT(slotItemsChanged()));
 167     connect(m_model, SIGNAL(itemsRemoved(KItemRangeList)),    this, SIGNAL(itemCountChanged()));
 168     connect(m_model, SIGNAL(itemsInserted(KItemRangeList)),   this, SIGNAL(itemCountChanged()));
 169     connect(m_model, SIGNAL(infoMessage(QString)),            this, SIGNAL(infoMessage(QString)));
 170     connect(m_model, SIGNAL(errorMessage(QString)),           this, SIGNAL(errorMessage(QString)));
 171     connect(m_model, SIGNAL(directoryRedirection(KUrl,KUrl)), this, SLOT(slotDirectoryRedirection(KUrl,KUrl)));
 172     connect(m_model, SIGNAL(urlIsFileError(KUrl)),            this, SIGNAL(urlIsFileError(KUrl)));
 173
 174     m_view->installEventFilter(this);
 175     connect(m_view, SIGNAL(sortOrderChanged(Qt::SortOrder,Qt::SortOrder)),
 176             this, SLOT(slotSortOrderChangedByHeader(Qt::SortOrder,Qt::SortOrder)));
 177     connect(m_view, SIGNAL(sortRoleChanged(QByteArray,QByteArray)),
 178             this, SLOT(slotSortRoleChangedByHeader(QByteArray,QByteArray)));
 179     connect(m_view, SIGNAL(visibleRolesChanged(QList<QByteArray>,QList<QByteArray>)),
 180             this, SLOT(slotVisibleRolesChangedByHeader(QList<QByteArray>,QList<QByteArray>)));
 181     connect(m_view, SIGNAL(roleEditingCanceled(int,QByteArray,QVariant)),
 182             this, SLOT(slotRoleEditingCanceled()));
 183     connect(m_view->header(), SIGNAL(columnWidthChanged(QByteArray,qreal,qreal)),
 184             this, SLOT(slotHeaderColumnWidthChanged(QByteArray,qreal,qreal)));
 185
 186     KItemListSelectionManager* selectionManager = controller->selectionManager();
 187     connect(selectionManager, SIGNAL(selectionChanged(QSet<int>,QSet<int>)),
 188             this, SLOT(slotSelectionChanged(QSet<int>,QSet<int>)));
 189
 190     m_toolTipManager = new ToolTipManager(this);
 191
 192     m_versionControlObserver = new VersionControlObserver(this);
 193     m_versionControlObserver->setModel(m_model);
 194     connect(m_versionControlObserver, SIGNAL(infoMessage(QString)), this, SIGNAL(infoMessage(QString)));
 195     connect(m_versionControlObserver, SIGNAL(errorMessage(QString)), this, SIGNAL(errorMessage(QString)));
 196     connect(m_versionControlObserver, SIGNAL(operationCompletedMessage(QString)), this, SIGNAL(operationCompletedMessage(QString)));
 197
 198     applyViewProperties();
 199     m_topLayout->addWidget(m_container);
 200
 201     loadDirectory(url);
 202 }
 203
 204 DolphinView::~DolphinView()
 205 {
 206 }
 207
 208 KUrl DolphinView::url() const
 209 {
 210     return m_url;
 211 }
 212
 213 void DolphinView::setActive(bool active)
 214 {
 215     if (active == m_active) {
 216         return;
 217     }
 218
 219     m_active = active;
 220
 221     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 222     if (!active) {
 223         color.setAlpha(150);
 224     }
 225
 226     QWidget* viewport = m_container->viewport();
 227     if (viewport) {
 228         QPalette palette;
 229         palette.setColor(viewport->backgroundRole(), color);
 230         viewport->setPalette(palette);
 231     }
 232
 233     update();
 234
 235     if (active) {
 236         m_container->setFocus();
 237         emit activated();
 238         emit writeStateChanged(m_isFolderWritable);
 239     }
 240 }
 241
 242 bool DolphinView::isActive() const
 243 {
 244     return m_active;
 245 }
 246
 247 void DolphinView::setMode(Mode mode)
 248 {
 249     if (mode != m_mode) {
 250         ViewProperties props(viewPropertiesUrl());
 251         props.setViewMode(mode);
 252
 253         // We pass the new ViewProperties to applyViewProperties, rather than
 254         // storing them on disk and letting applyViewProperties() read them
 255         // from there, to prevent that changing the view mode fails if the
 256         // .directory file is not writable (see bug 318534).
 257         applyViewProperties(props);
 258     }
 259 }
 260
 261 DolphinView::Mode DolphinView::mode() const
 262 {
 263     return m_mode;
 264 }
 265
 266 void DolphinView::setPreviewsShown(bool show)
 267 {
 268     if (previewsShown() == show) {
 269         return;
 270     }
 271
 272     ViewProperties props(viewPropertiesUrl());
 273     props.setPreviewsShown(show);
 274
 275     const int oldZoomLevel = m_view->zoomLevel();
 276     m_view->setPreviewsShown(show);
 277     emit previewsShownChanged(show);
 278
 279     const int newZoomLevel = m_view->zoomLevel();
 280     if (newZoomLevel != oldZoomLevel) {
 281         emit zoomLevelChanged(newZoomLevel, oldZoomLevel);
 282     }
 283 }
 284
 285 bool DolphinView::previewsShown() const
 286 {
 287     return m_view->previewsShown();
 288 }
 289
 290 void DolphinView::setHiddenFilesShown(bool show)
 291 {
 292     if (m_model->showHiddenFiles() == show) {
 293         return;
 294     }
 295
 296     const KFileItemList itemList = selectedItems();
 297     m_selectedUrls.clear();
 298     m_selectedUrls = itemList.urlList();
 299
 300     ViewProperties props(viewPropertiesUrl());
 301     props.setHiddenFilesShown(show);
 302
 303     m_model->setShowHiddenFiles(show);
 304     emit hiddenFilesShownChanged(show);
 305 }
 306
 307 bool DolphinView::hiddenFilesShown() const
 308 {
 309     return m_model->showHiddenFiles();
 310 }
 311
 312 void DolphinView::setGroupedSorting(bool grouped)
 313 {
 314     if (grouped == groupedSorting()) {
 315         return;
 316     }
 317
 318     ViewProperties props(viewPropertiesUrl());
 319     props.setGroupedSorting(grouped);
 320     props.save();
 321
 322     m_container->controller()->model()->setGroupedSorting(grouped);
 323
 324     emit groupedSortingChanged(grouped);
 325 }
 326
 327 bool DolphinView::groupedSorting() const
 328 {
 329     return m_model->groupedSorting();
 330 }
 331
 332 KFileItemList DolphinView::items() const
 333 {
 334     KFileItemList list;
 335     const int itemCount = m_model->count();
 336     list.reserve(itemCount);
 337
 338     for (int i = 0; i < itemCount; ++i) {
 339         list.append(m_model->fileItem(i));
 340     }
 341
 342     return list;
 343 }
 344
 345 int DolphinView::itemsCount() const
 346 {
 347     return m_model->count();
 348 }
 349
 350 KFileItemList DolphinView::selectedItems() const
 351 {
 352     const KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 353     QList<int> selectedIndexes = selectionManager->selectedItems().toList();
 354
 355     qSort(selectedIndexes);
 356
 357     KFileItemList selectedItems;
 358     QListIterator<int> it(selectedIndexes);
 359     while (it.hasNext()) {
 360         const int index = it.next();
 361         selectedItems.append(m_model->fileItem(index));
 362     }
 363     return selectedItems;
 364 }
 365
 366 int DolphinView::selectedItemsCount() const
 367 {
 368     const KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 369     return selectionManager->selectedItems().count();
 370 }
 371
 372 void DolphinView::markUrlsAsSelected(const QList<KUrl>& urls)
 373 {
 374     m_selectedUrls = urls;
 375 }
 376
 377 void DolphinView::markUrlAsCurrent(const KUrl& url)
 378 {
 379     m_currentItemUrl = url;
 380     m_scrollToCurrentItem = true;
 381 }
 382
 383 void DolphinView::selectItems(const QRegExp& pattern, bool enabled)
 384 {
 385     const KItemListSelectionManager::SelectionMode mode = enabled
 386                                                         ? KItemListSelectionManager::Select
 387                                                         : KItemListSelectionManager::Deselect;
 388     KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 389
 390     for (int index = 0; index < m_model->count(); index++) {
 391         const KFileItem item = m_model->fileItem(index);
 392         if (pattern.exactMatch(item.text())) {
 393             // An alternative approach would be to store the matching items in a QSet<int> and
 394             // select them in one go after the loop, but we'd need a new function
 395             // KItemListSelectionManager::setSelected(QSet<int>, SelectionMode mode)
 396             // for that.
 397             selectionManager->setSelected(index, 1, mode);
 398         }
 399     }
 400 }
 401
 402 void DolphinView::setZoomLevel(int level)
 403 {
 404     const int oldZoomLevel = zoomLevel();
 405     m_view->setZoomLevel(level);
 406     if (zoomLevel() != oldZoomLevel) {
 407         hideToolTip();
 408         emit zoomLevelChanged(zoomLevel(), oldZoomLevel);
 409     }
 410 }
 411
 412 int DolphinView::zoomLevel() const
 413 {
 414     return m_view->zoomLevel();
 415 }
 416
 417 void DolphinView::setSortRole(const QByteArray& role)
 418 {
 419     if (role != sortRole()) {
 420         updateSortRole(role);
 421     }
 422 }
 423
 424 QByteArray DolphinView::sortRole() const
 425 {
 426     const KItemModelBase* model = m_container->controller()->model();
 427     return model->sortRole();
 428 }
 429
 430 void DolphinView::setSortOrder(Qt::SortOrder order)
 431 {
 432     if (sortOrder() != order) {
 433         updateSortOrder(order);
 434     }
 435 }
 436
 437 Qt::SortOrder DolphinView::sortOrder() const
 438 {
 439     return m_model->sortOrder();
 440 }
 441
 442 void DolphinView::setSortFoldersFirst(bool foldersFirst)
 443 {
 444     if (sortFoldersFirst() != foldersFirst) {
 445         updateSortFoldersFirst(foldersFirst);
 446     }
 447 }
 448
 449 bool DolphinView::sortFoldersFirst() const
 450 {
 451     return m_model->sortDirectoriesFirst();
 452 }
 453
 454 void DolphinView::setVisibleRoles(const QList<QByteArray>& roles)
 455 {
 456     const QList<QByteArray> previousRoles = roles;
 457
 458     ViewProperties props(viewPropertiesUrl());
 459     props.setVisibleRoles(roles);
 460
 461     m_visibleRoles = roles;
 462     m_view->setVisibleRoles(roles);
 463
 464     emit visibleRolesChanged(m_visibleRoles, previousRoles);
 465 }
 466
 467 QList<QByteArray> DolphinView::visibleRoles() const
 468 {
 469     return m_visibleRoles;
 470 }
 471
 472 void DolphinView::reload()
 473 {
 474     QByteArray viewState;
 475     QDataStream saveStream(&viewState, QIODevice::WriteOnly);
 476     saveState(saveStream);
 477
 478     const KFileItemList itemList = selectedItems();
 479     m_selectedUrls.clear();
 480     m_selectedUrls = itemList.urlList();
 481
 482     setUrl(url());
 483     loadDirectory(url(), true);
 484
 485     QDataStream restoreStream(viewState);
 486     restoreState(restoreStream);
 487 }
 488
 489 void DolphinView::readSettings()
 490 {
 491     const int oldZoomLevel = m_view->zoomLevel();
 492
 493     GeneralSettings::self()->readConfig();
 494     m_view->readSettings();
 495     applyViewProperties();
 496
 497     const int delay = GeneralSettings::autoExpandFolders() ? 750 : -1;
 498     m_container->controller()->setAutoActivationDelay(delay);
 499
 500     const int newZoomLevel = m_view->zoomLevel();
 501     if (newZoomLevel != oldZoomLevel) {
 502         emit zoomLevelChanged(newZoomLevel, oldZoomLevel);
 503     }
 504 }
 505
 506 void DolphinView::writeSettings()
 507 {
 508     GeneralSettings::self()->writeConfig();
 509     m_view->writeSettings();
 510 }
 511
 512 void DolphinView::setNameFilter(const QString& nameFilter)
 513 {
 514     m_model->setNameFilter(nameFilter);
 515 }
 516
 517 QString DolphinView::nameFilter() const
 518 {
 519     return m_model->nameFilter();
 520 }
 521
 522 void DolphinView::setMimeTypeFilters(const QStringList& filters)
 523 {
 524     return m_model->setMimeTypeFilters(filters);
 525 }
 526
 527 QStringList DolphinView::mimeTypeFilters() const
 528 {
 529     return m_model->mimeTypeFilters();
 530 }
 531
 532 QString DolphinView::statusBarText() const
 533 {
 534     QString summary;
 535     QString foldersText;
 536     QString filesText;
 537
 538     int folderCount = 0;
 539     int fileCount = 0;
 540     KIO::filesize_t totalFileSize = 0;
 541
 542     if (m_container->controller()->selectionManager()->hasSelection()) {
 543         // Give a summary of the status of the selected files
 544         const KFileItemList list = selectedItems();
 545         foreach (const KFileItem& item, list) {
 546             if (item.isDir()) {
 547                 ++folderCount;
 548             } else {
 549                 ++fileCount;
 550                 totalFileSize += item.size();
 551             }
 552         }
 553
 554         if (folderCount + fileCount == 1) {
 555             // If only one item is selected, show info about it
 556             return list.first().getStatusBarInfo();
 557         } else {
 558             // At least 2 items are selected
 559             foldersText = i18ncp("@info:status", "1 Folder selected", "%1 Folders selected", folderCount);
 560             filesText = i18ncp("@info:status", "1 File selected", "%1 Files selected", fileCount);
 561         }
 562     } else {
 563         calculateItemCount(fileCount, folderCount, totalFileSize);
 564         foldersText = i18ncp("@info:status", "1 Folder", "%1 Folders", folderCount);
 565         filesText = i18ncp("@info:status", "1 File", "%1 Files", fileCount);
 566     }
 567
 568     if (fileCount > 0 && folderCount > 0) {
 569         summary = i18nc("@info:status folders, files (size)", "%1, %2 (%3)",
 570                         foldersText, filesText,
 571                         KGlobal::locale()->formatByteSize(totalFileSize));
 572     } else if (fileCount > 0) {
 573         summary = i18nc("@info:status files (size)", "%1 (%2)",
 574                         filesText,
 575                         KGlobal::locale()->formatByteSize(totalFileSize));
 576     } else if (folderCount > 0) {
 577         summary = foldersText;
 578     } else {
 579         summary = i18nc("@info:status", "0 Folders, 0 Files");
 580     }
 581
 582     return summary;
 583 }
 584
 585 QList<QAction*> DolphinView::versionControlActions(const KFileItemList& items) const
 586 {
 587     QList<QAction*> actions;
 588
 589     if (items.isEmpty()) {
 590         const KFileItem item = m_model->rootItem();
 591         if (!item.isNull()) {
 592             actions = m_versionControlObserver->actions(KFileItemList() << item);
 593         }
 594     } else {
 595         actions = m_versionControlObserver->actions(items);
 596     }
 597
 598     return actions;
 599 }
 600
 601 void DolphinView::setUrl(const KUrl& url)
 602 {
 603     if (url == m_url) {
 604         return;
 605     }
 606
 607     clearSelection();
 608
 609     emit urlAboutToBeChanged(url);
 610     m_url = url;
 611
 612     hideToolTip();
 613
 614     disconnect(m_view, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)),
 615                this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant)));
 616
 617     // It is important to clear the items from the model before
 618     // applying the view properties, otherwise expensive operations
 619     // might be done on the existing items although they get cleared
 620     // anyhow afterwards by loadDirectory().
 621     m_model->clear();
 622     applyViewProperties();
 623     loadDirectory(url);
 624
 625     emit urlChanged(url);
 626 }
 627
 628 void DolphinView::selectAll()
 629 {
 630     KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 631     selectionManager->setSelected(0, m_model->count());
 632 }
 633
 634 void DolphinView::invertSelection()
 635 {
 636     KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 637     selectionManager->setSelected(0, m_model->count(), KItemListSelectionManager::Toggle);
 638 }
 639
 640 void DolphinView::clearSelection()
 641 {
 642     m_selectedUrls.clear();
 643     m_container->controller()->selectionManager()->clearSelection();
 644 }
 645
 646 void DolphinView::renameSelectedItems()
 647 {
 648     const KFileItemList items = selectedItems();
 649     if (items.isEmpty()) {
 650         return;
 651     }
 652
 653     if (items.count() == 1 && GeneralSettings::renameInline()) {
 654         const int index = m_model->index(items.first());
 655         m_view->editRole(index, "text");
 656
 657         connect(m_view, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)),
 658                 this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant)));
 659     } else {
 660         RenameDialog* dialog = new RenameDialog(this, items);
 661         dialog->setAttribute(Qt::WA_DeleteOnClose);
 662         dialog->show();
 663         dialog->raise();
 664         dialog->activateWindow();
 665     }
 666
 667     // Assure that the current index remains visible when KFileItemModel
 668     // will notify the view about changed items (which might result in
 669     // a changed sorting).
 670     m_assureVisibleCurrentIndex = true;
 671 }
 672
 673 void DolphinView::trashSelectedItems()
 674 {
 675     const KUrl::List list = simplifiedSelectedUrls();
 676     KonqOperations::del(this, KonqOperations::TRASH, list);
 677 }
 678
 679 void DolphinView::deleteSelectedItems()
 680 {
 681     const KUrl::List list = simplifiedSelectedUrls();
 682     const bool del = KonqOperations::askDeleteConfirmation(list,
 683                      KonqOperations::DEL,
 684                      KonqOperations::DEFAULT_CONFIRMATION,
 685                      this);
 686
 687     if (del) {
 688         KIO::Job* job = KIO::del(list);
 689         if (job->ui()) {
 690             job->ui()->setWindow(this);
 691         }
 692         connect(job, SIGNAL(result(KJob*)),
 693                 this, SLOT(slotDeleteFileFinished(KJob*)));
 694     }
 695 }
 696
 697 void DolphinView::cutSelectedItems()
 698 {
 699     QMimeData* mimeData = selectionMimeData();
 700     KonqMimeData::addIsCutSelection(mimeData, true);
 701     QApplication::clipboard()->setMimeData(mimeData);
 702 }
 703
 704 void DolphinView::copySelectedItems()
 705 {
 706     QMimeData* mimeData = selectionMimeData();
 707     QApplication::clipboard()->setMimeData(mimeData);
 708 }
 709
 710 void DolphinView::paste()
 711 {
 712     pasteToUrl(url());
 713 }
 714
 715 void DolphinView::pasteIntoFolder()
 716 {
 717     const KFileItemList items = selectedItems();
 718     if ((items.count() == 1) && items.first().isDir()) {
 719         pasteToUrl(items.first().url());
 720     }
 721 }
 722
 723 void DolphinView::stopLoading()
 724 {
 725     m_model->cancelDirectoryLoading();
 726 }
 727
 728 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 729 {
 730     switch (event->type()) {
 731     case QEvent::FocusIn:
 732         if (watched == m_container) {
 733             setActive(true);
 734         }
 735         break;
 736
 737     case QEvent::GraphicsSceneDragEnter:
 738         if (watched == m_view) {
 739             m_dragging = true;
 740         }
 741         break;
 742
 743     case QEvent::GraphicsSceneDragLeave:
 744         if (watched == m_view) {
 745             m_dragging = false;
 746         }
 747         break;
 748
 749     case QEvent::GraphicsSceneDrop:
 750         if (watched == m_view) {
 751             m_dragging = false;
 752         }
 753     default:
 754         break;
 755     }
 756
 757     return QWidget::eventFilter(watched, event);
 758 }
 759
 760 void DolphinView::wheelEvent(QWheelEvent* event)
 761 {
 762     if (event->modifiers().testFlag(Qt::ControlModifier)) {
 763         const int numDegrees = event->delta() / 8;
 764         const int numSteps = numDegrees / 15;
 765
 766         setZoomLevel(zoomLevel() + numSteps);
 767         event->accept();
 768     } else {
 769         event->ignore();
 770     }
 771 }
 772
 773 void DolphinView::hideEvent(QHideEvent* event)
 774 {
 775     hideToolTip();
 776     QWidget::hideEvent(event);
 777 }
 778
 779 bool DolphinView::event(QEvent* event)
 780 {
 781     /* See Bug 297355
 782      * Dolphin leaves file preview tooltips open even when is not visible.
 783      *
 784      * Hide tool-tip when Dolphin loses focus.
 785      */
 786     if (event->type() == QEvent::WindowDeactivate) {
 787         hideToolTip();
 788     }
 789
 790     return QWidget::event(event);
 791 }
 792
 793 void DolphinView::activate()
 794 {
 795     setActive(true);
 796 }
 797
 798 void DolphinView::slotItemActivated(int index)
 799 {
 800     const KFileItem item = m_model->fileItem(index);
 801     if (!item.isNull()) {
 802         emit itemActivated(item);
 803     }
 804 }
 805
 806 void DolphinView::slotItemsActivated(const QSet<int>& indexes)
 807 {
 808     Q_ASSERT(indexes.count() >= 2);
 809
 810     if (indexes.count() > 5) {
 811         QString question = i18np("Are you sure you want to open 1 item?", "Are you sure you want to open %1 items?", indexes.count());
 812         const int answer = KMessageBox::warningYesNo(this, question);
 813         if (answer != KMessageBox::Yes) {
 814             return;
 815         }
 816     }
 817
 818     KFileItemList items;
 819     items.reserve(indexes.count());
 820
 821     QSetIterator<int> it(indexes);
 822     while (it.hasNext()) {
 823         const int index = it.next();
 824         KFileItem item = m_model->fileItem(index);
 825         const KUrl& url = openItemAsFolderUrl(item);
 826
 827         if (!url.isEmpty()) { // Open folders in new tabs
 828             emit tabRequested(url);
 829         } else {
 830             items.append(item);
 831         }
 832     }
 833
 834     if (items.count() == 1) {
 835         emit itemActivated(items.first());
 836     } else if (items.count() > 1) {
 837         emit itemsActivated(items);
 838     }
 839 }
 840
 841 void DolphinView::slotItemMiddleClicked(int index)
 842 {
 843     const KFileItem& item = m_model->fileItem(index);
 844     const KUrl& url = openItemAsFolderUrl(item);
 845     if (!url.isEmpty()) {
 846         emit tabRequested(url);
 847     } else if (isTabsForFilesEnabled()) {
 848         emit tabRequested(item.url());
 849     }
 850 }
 851
 852 void DolphinView::slotItemContextMenuRequested(int index, const QPointF& pos)
 853 {
 854     // Force emit of a selection changed signal before we request the
 855     // context menu, to update the edit-actions first. (See Bug 294013)
 856     if (m_selectionChangedTimer->isActive()) {
 857         emitSelectionChangedSignal();
 858     }
 859
 860     const KFileItem item = m_model->fileItem(index);
 861     emit requestContextMenu(pos.toPoint(), item, url(), QList<QAction*>());
 862 }
 863
 864 void DolphinView::slotViewContextMenuRequested(const QPointF& pos)
 865 {
 866     emit requestContextMenu(pos.toPoint(), KFileItem(), url(), QList<QAction*>());
 867 }
 868
 869 void DolphinView::slotHeaderContextMenuRequested(const QPointF& pos)
 870 {
 871     ViewProperties props(viewPropertiesUrl());
 872
 873     QPointer<KMenu> menu = new KMenu(QApplication::activeWindow());
 874
 875     KItemListView* view = m_container->controller()->view();
 876     const QSet<QByteArray> visibleRolesSet = view->visibleRoles().toSet();
 877
 878     bool nepomukRunning = false;
 879     bool indexingEnabled = false;
 880 #ifdef HAVE_NEPOMUK
 881     nepomukRunning = (Nepomuk2::ResourceManager::instance()->initialized());
 882     if (nepomukRunning) {
 883         KConfig config("nepomukserverrc");
 884         indexingEnabled = config.group("Service-nepomukfileindexer").readEntry("autostart", true);
 885     }
 886 #endif
 887
 888     QString groupName;
 889     QMenu* groupMenu = 0;
 890
 891     // Add all roles to the menu that can be shown or hidden by the user
 892     const QList<KFileItemModel::RoleInfo> rolesInfo = KFileItemModel::rolesInformation();
 893     foreach (const KFileItemModel::RoleInfo& info, rolesInfo) {
 894         if (info.role == "text") {
 895             // It should not be possible to hide the "text" role
 896             continue;
 897         }
 898
 899         const QString text = m_model->roleDescription(info.role);
 900         QAction* action = 0;
 901         if (info.group.isEmpty()) {
 902             action = menu->addAction(text);
 903         } else {
 904             if (!groupMenu || info.group != groupName) {
 905                 groupName = info.group;
 906                 groupMenu = menu->addMenu(groupName);
 907             }
 908
 909             action = groupMenu->addAction(text);
 910         }
 911
 912         action->setCheckable(true);
 913         action->setChecked(visibleRolesSet.contains(info.role));
 914         action->setData(info.role);
 915
 916         const bool enable = (!info.requiresNepomuk && !info.requiresIndexer) ||
 917                             (info.requiresNepomuk && nepomukRunning) ||
 918                             (info.requiresIndexer && indexingEnabled);
 919         action->setEnabled(enable);
 920     }
 921
 922     menu->addSeparator();
 923
 924     QActionGroup* widthsGroup = new QActionGroup(menu);
 925     const bool autoColumnWidths = props.headerColumnWidths().isEmpty();
 926
 927     QAction* autoAdjustWidthsAction = menu->addAction(i18nc("@action:inmenu", "Automatic Column Widths"));
 928     autoAdjustWidthsAction->setCheckable(true);
 929     autoAdjustWidthsAction->setChecked(autoColumnWidths);
 930     autoAdjustWidthsAction->setActionGroup(widthsGroup);
 931
 932     QAction* customWidthsAction = menu->addAction(i18nc("@action:inmenu", "Custom Column Widths"));
 933     customWidthsAction->setCheckable(true);
 934     customWidthsAction->setChecked(!autoColumnWidths);
 935     customWidthsAction->setActionGroup(widthsGroup);
 936
 937     QAction* action = menu->exec(pos.toPoint());
 938     if (menu && action) {
 939         KItemListHeader* header = view->header();
 940
 941         if (action == autoAdjustWidthsAction) {
 942             // Clear the column-widths from the viewproperties and turn on
 943             // the automatic resizing of the columns
 944             props.setHeaderColumnWidths(QList<int>());
 945             header->setAutomaticColumnResizing(true);
 946         } else if (action == customWidthsAction) {
 947             // Apply the current column-widths as custom column-widths and turn
 948             // off the automatic resizing of the columns
 949             QList<int> columnWidths;
 950             foreach (const QByteArray& role, view->visibleRoles()) {
 951                 columnWidths.append(header->columnWidth(role));
 952             }
 953             props.setHeaderColumnWidths(columnWidths);
 954             header->setAutomaticColumnResizing(false);
 955         } else {
 956             // Show or hide the selected role
 957             const QByteArray selectedRole = action->data().toByteArray();
 958
 959             QList<QByteArray> visibleRoles = view->visibleRoles();
 960             if (action->isChecked()) {
 961                 visibleRoles.append(selectedRole);
 962             } else {
 963                 visibleRoles.removeOne(selectedRole);
 964             }
 965
 966             view->setVisibleRoles(visibleRoles);
 967             props.setVisibleRoles(visibleRoles);
 968
 969             QList<int> columnWidths;
 970             if (!header->automaticColumnResizing()) {
 971                 foreach (const QByteArray& role, view->visibleRoles()) {
 972                     columnWidths.append(header->columnWidth(role));
 973                 }
 974             }
 975             props.setHeaderColumnWidths(columnWidths);
 976         }
 977     }
 978
 979     delete menu;
 980 }
 981
 982 void DolphinView::slotHeaderColumnWidthChanged(const QByteArray& role, qreal current, qreal previous)
 983 {
 984     Q_UNUSED(previous);
 985
 986     const QList<QByteArray> visibleRoles = m_view->visibleRoles();
 987
 988     ViewProperties props(viewPropertiesUrl());
 989     QList<int> columnWidths = props.headerColumnWidths();
 990     if (columnWidths.count() != visibleRoles.count()) {
 991         columnWidths.clear();
 992         columnWidths.reserve(visibleRoles.count());
 993         const KItemListHeader* header = m_view->header();
 994         foreach (const QByteArray& role, visibleRoles) {
 995             const int width = header->columnWidth(role);
 996             columnWidths.append(width);
 997         }
 998     }
 999
1000     const int roleIndex = visibleRoles.indexOf(role);
1001     Q_ASSERT(roleIndex >= 0 && roleIndex < columnWidths.count());
1002     columnWidths[roleIndex] = current;
1003
1004     props.setHeaderColumnWidths(columnWidths);
1005 }
1006
1007 void DolphinView::slotItemHovered(int index)
1008 {
1009     const KFileItem item = m_model->fileItem(index);
1010
1011     if (GeneralSettings::showToolTips() && !m_dragging) {
1012         QRectF itemRect = m_container->controller()->view()->itemContextRect(index);
1013         const QPoint pos = m_container->mapToGlobal(itemRect.topLeft().toPoint());
1014         itemRect.moveTo(pos);
1015
1016         m_toolTipManager->showToolTip(item, itemRect);
1017     }
1018
1019     emit requestItemInfo(item);
1020 }
1021
1022 void DolphinView::slotItemUnhovered(int index)
1023 {
1024     Q_UNUSED(index);
1025     hideToolTip();
1026     emit requestItemInfo(KFileItem());
1027 }
1028
1029 void DolphinView::slotItemDropEvent(int index, QGraphicsSceneDragDropEvent* event)
1030 {
1031     KUrl destUrl;
1032     KFileItem destItem = m_model->fileItem(index);
1033     if (destItem.isNull() || (!destItem.isDir() && !destItem.isDesktopFile())) {
1034         // Use the URL of the view as drop target if the item is no directory
1035         // or desktop-file
1036         destItem = m_model->rootItem();
1037         destUrl = url();
1038     } else {
1039         // The item represents a directory or desktop-file
1040         destUrl = destItem.url();
1041     }
1042
1043     QDropEvent dropEvent(event->pos().toPoint(),
1044                          event->possibleActions(),
1045                          event->mimeData(),
1046                          event->buttons(),
1047                          event->modifiers());
1048
1049     QString error;
1050     KonqOperations* op = DragAndDropHelper::dropUrls(destItem, destUrl, &dropEvent, error);
1051     if (!error.isEmpty()) {
1052         emit infoMessage(error);
1053     }
1054
1055     if (op && destUrl == url()) {
1056         // Mark the dropped urls as selected.
1057         m_clearSelectionBeforeSelectingNewItems = true;
1058         connect(op, SIGNAL(aboutToCreate(KUrl::List)), this, SLOT(slotAboutToCreate(KUrl::List)));
1059     }
1060
1061     setActive(true);
1062 }
1063
1064 void DolphinView::slotModelChanged(KItemModelBase* current, KItemModelBase* previous)
1065 {
1066     if (previous != 0) {
1067         disconnect(previous, SIGNAL(directoryLoadingCompleted()), this, SLOT(slotDirectoryLoadingCompleted()));
1068         m_versionControlObserver->setModel(0);
1069     }
1070
1071     if (current) {
1072         Q_ASSERT(qobject_cast<KFileItemModel*>(current));
1073         connect(current, SIGNAL(loadingCompleted()), this, SLOT(slotDirectoryLoadingCompleted()));
1074
1075         KFileItemModel* fileItemModel = static_cast<KFileItemModel*>(current);
1076         m_versionControlObserver->setModel(fileItemModel);
1077     }
1078 }
1079
1080 void DolphinView::slotMouseButtonPressed(int itemIndex, Qt::MouseButtons buttons)
1081 {
1082     hideToolTip();
1083
1084     if (itemIndex < 0) {
1085         // Trigger the history navigation only when clicking on the viewport:
1086         // Above an item the XButtons provide a simple way to select items in
1087         // the singleClick mode.
1088         if (buttons & Qt::XButton1) {
1089             emit goBackRequested();
1090         } else if (buttons & Qt::XButton2) {
1091             emit goForwardRequested();
1092         }
1093     }
1094 }
1095
1096 void DolphinView::slotAboutToCreate(const KUrl::List& urls)
1097 {
1098     if (!urls.isEmpty()) {
1099         if (m_markFirstNewlySelectedItemAsCurrent) {
1100             markUrlAsCurrent(urls.first());
1101             m_markFirstNewlySelectedItemAsCurrent = false;
1102         }
1103         m_selectedUrls << KDirModel::simplifiedUrlList(urls);
1104     }
1105 }
1106
1107 void DolphinView::slotSelectionChanged(const QSet<int>& current, const QSet<int>& previous)
1108 {
1109     const int currentCount = current.count();
1110     const int previousCount = previous.count();
1111     const bool selectionStateChanged = (currentCount == 0 && previousCount  > 0) ||
1112                                        (currentCount >  0 && previousCount == 0);
1113
1114     // If nothing has been selected before and something got selected (or if something
1115     // was selected before and now nothing is selected) the selectionChangedSignal must
1116     // be emitted asynchronously as fast as possible to update the edit-actions.
1117     m_selectionChangedTimer->setInterval(selectionStateChanged ? 0 : 300);
1118     m_selectionChangedTimer->start();
1119 }
1120
1121 void DolphinView::emitSelectionChangedSignal()
1122 {
1123     m_selectionChangedTimer->stop();
1124     emit selectionChanged(selectedItems());
1125 }
1126
1127 void DolphinView::updateSortRole(const QByteArray& role)
1128 {
1129     ViewProperties props(viewPropertiesUrl());
1130     props.setSortRole(role);
1131
1132     KItemModelBase* model = m_container->controller()->model();
1133     model->setSortRole(role);
1134
1135     emit sortRoleChanged(role);
1136 }
1137
1138 void DolphinView::updateSortOrder(Qt::SortOrder order)
1139 {
1140     ViewProperties props(viewPropertiesUrl());
1141     props.setSortOrder(order);
1142
1143     m_model->setSortOrder(order);
1144
1145     emit sortOrderChanged(order);
1146 }
1147
1148 void DolphinView::updateSortFoldersFirst(bool foldersFirst)
1149 {
1150     ViewProperties props(viewPropertiesUrl());
1151     props.setSortFoldersFirst(foldersFirst);
1152
1153     m_model->setSortDirectoriesFirst(foldersFirst);
1154
1155     emit sortFoldersFirstChanged(foldersFirst);
1156 }
1157
1158 QPair<bool, QString> DolphinView::pasteInfo() const
1159 {
1160     return KonqOperations::pasteInfo(url());
1161 }
1162
1163 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
1164 {
1165     m_tabsForFiles = tabsForFiles;
1166 }
1167
1168 bool DolphinView::isTabsForFilesEnabled() const
1169 {
1170     return m_tabsForFiles;
1171 }
1172
1173 bool DolphinView::itemsExpandable() const
1174 {
1175     return m_mode == DetailsView;
1176 }
1177
1178 void DolphinView::restoreState(QDataStream& stream)
1179 {
1180     // Restore the current item that had the keyboard focus
1181     stream >> m_currentItemUrl;
1182
1183     // Restore the view position
1184     stream >> m_restoredContentsPosition;
1185
1186     // Restore expanded folders (only relevant for the details view - will be ignored by the view in other view modes)
1187     QSet<KUrl> urls;
1188     stream >> urls;
1189     m_model->restoreExpandedDirectories(urls);
1190 }
1191
1192 void DolphinView::saveState(QDataStream& stream)
1193 {
1194     // Save the current item that has the keyboard focus
1195     const int currentIndex = m_container->controller()->selectionManager()->currentItem();
1196     if (currentIndex != -1) {
1197         KFileItem item = m_model->fileItem(currentIndex);
1198         Q_ASSERT(!item.isNull()); // If the current index is valid a item must exist
1199         KUrl currentItemUrl = item.url();
1200         stream << currentItemUrl;
1201     } else {
1202         stream << KUrl();
1203     }
1204
1205     // Save view position
1206     const qreal x = m_container->horizontalScrollBar()->value();
1207     const qreal y = m_container->verticalScrollBar()->value();
1208     stream << QPoint(x, y);
1209
1210     // Save expanded folders (only relevant for the details view - the set will be empty in other view modes)
1211     stream << m_model->expandedDirectories();
1212 }
1213
1214 KFileItem DolphinView::rootItem() const
1215 {
1216     return m_model->rootItem();
1217 }
1218
1219 void DolphinView::setViewPropertiesContext(const QString& context)
1220 {
1221     m_viewPropertiesContext = context;
1222 }
1223
1224 QString DolphinView::viewPropertiesContext() const
1225 {
1226     return m_viewPropertiesContext;
1227 }
1228
1229 KUrl DolphinView::openItemAsFolderUrl(const KFileItem& item, const bool browseThroughArchives)
1230 {
1231     if (item.isNull()) {
1232         return KUrl();
1233     }
1234
1235     KUrl url = item.targetUrl();
1236
1237     if (item.isDir()) {
1238         return url;
1239     }
1240
1241     if (item.isMimeTypeKnown()) {
1242         const QString& mimetype = item.mimetype();
1243
1244         if (browseThroughArchives && item.isFile() && url.isLocalFile()) {
1245             // Generic mechanism for redirecting to tar:/<path>/ when clicking on a tar file,
1246             // zip:/<path>/ when clicking on a zip file, etc.
1247             // The .protocol file specifies the mimetype that the kioslave handles.
1248             // Note that we don't use mimetype inheritance since we don't want to
1249             // open OpenDocument files as zip folders...
1250             const QString& protocol = KProtocolManager::protocolForArchiveMimetype(mimetype);
1251             if (!protocol.isEmpty()) {
1252                 url.setProtocol(protocol);
1253                 return url;
1254             }
1255         }
1256
1257         if (mimetype == QLatin1String("application/x-desktop")) {
1258             // Redirect to the URL in Type=Link desktop files, unless it is a http(s) URL.
1259             KDesktopFile desktopFile(url.toLocalFile());
1260             if (desktopFile.hasLinkType()) {
1261                 const QString linkUrl = desktopFile.readUrl();
1262                 if (!linkUrl.startsWith(QLatin1String("http"))) {
1263                     return linkUrl;
1264                 }
1265             }
1266         }
1267     }
1268
1269     return KUrl();
1270 }
1271
1272 void DolphinView::observeCreatedItem(const KUrl& url)
1273 {
1274     if (m_active) {
1275         clearSelection();
1276         markUrlAsCurrent(url);
1277         markUrlsAsSelected(QList<KUrl>() << url);
1278     }
1279 }
1280
1281 void DolphinView::slotDirectoryRedirection(const KUrl& oldUrl, const KUrl& newUrl)
1282 {
1283     if (oldUrl.equals(url(), KUrl::CompareWithoutTrailingSlash)) {
1284         emit redirection(oldUrl, newUrl);
1285         m_url = newUrl; // #186947
1286     }
1287 }
1288
1289 void DolphinView::updateViewState()
1290 {
1291     if (m_currentItemUrl != KUrl()) {
1292         KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
1293         const int currentIndex = m_model->index(m_currentItemUrl);
1294         if (currentIndex != -1) {
1295             selectionManager->setCurrentItem(currentIndex);
1296
1297             // scroll to current item and reset the state
1298             if (m_scrollToCurrentItem) {
1299                 m_view->scrollToItem(currentIndex);
1300                 m_scrollToCurrentItem = false;
1301             }
1302
1303             m_currentItemUrl = KUrl();
1304         } else {
1305             selectionManager->setCurrentItem(0);
1306         }
1307     }
1308
1309     if (!m_restoredContentsPosition.isNull()) {
1310         const int x = m_restoredContentsPosition.x();
1311         const int y = m_restoredContentsPosition.y();
1312         m_restoredContentsPosition = QPoint();
1313
1314         m_container->horizontalScrollBar()->setValue(x);
1315         m_container->verticalScrollBar()->setValue(y);
1316     }
1317
1318     if (!m_selectedUrls.isEmpty()) {
1319         KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
1320
1321         if (m_clearSelectionBeforeSelectingNewItems) {
1322             selectionManager->clearSelection();
1323             m_clearSelectionBeforeSelectingNewItems = false;
1324         }
1325
1326         QSet<int> selectedItems = selectionManager->selectedItems();
1327
1328         QList<KUrl>::iterator it = m_selectedUrls.begin();
1329         while (it != m_selectedUrls.end()) {
1330             const int index = m_model->index(*it);
1331             if (index >= 0) {
1332                 selectedItems.insert(index);
1333                 it = m_selectedUrls.erase(it);
1334             } else {
1335                  ++it;
1336             }
1337         }
1338
1339         selectionManager->setSelectedItems(selectedItems);
1340     }
1341 }
1342
1343 void DolphinView::hideToolTip()
1344 {
1345     if (GeneralSettings::showToolTips()) {
1346         m_toolTipManager->hideToolTip();
1347     }
1348 }
1349
1350 void DolphinView::calculateItemCount(int& fileCount,
1351                                      int& folderCount,
1352                                      KIO::filesize_t& totalFileSize) const
1353 {
1354     const int itemCount = m_model->count();
1355     for (int i = 0; i < itemCount; ++i) {
1356         const KFileItem item = m_model->fileItem(i);
1357         if (item.isDir()) {
1358             ++folderCount;
1359         } else {
1360             ++fileCount;
1361             totalFileSize += item.size();
1362         }
1363     }
1364 }
1365
1366 void DolphinView::showHoverInformation(const KFileItem& item)
1367 {
1368     emit requestItemInfo(item);
1369 }
1370
1371 void DolphinView::clearHoverInformation()
1372 {
1373     emit requestItemInfo(KFileItem());
1374 }
1375
1376 void DolphinView::slotDeleteFileFinished(KJob* job)
1377 {
1378     if (job->error() == 0) {
1379         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1380     } else if (job->error() != KIO::ERR_USER_CANCELED) {
1381         emit errorMessage(job->errorString());
1382     }
1383 }
1384
1385 void DolphinView::slotRenamingFailed(const KUrl& oldUrl, const KUrl& newUrl)
1386 {
1387     const int index = m_model->index(newUrl);
1388     if (index >= 0) {
1389         QHash<QByteArray, QVariant> data;
1390         data.insert("text", oldUrl.fileName());
1391         m_model->setData(index, data);
1392     }
1393 }
1394
1395 void DolphinView::slotDirectoryLoadingStarted()
1396 {
1397     // Disable the writestate temporary until it can be determined in a fast way
1398     // in DolphinView::slotLoadingCompleted()
1399     if (m_isFolderWritable) {
1400         m_isFolderWritable = false;
1401         emit writeStateChanged(m_isFolderWritable);
1402     }
1403
1404     emit directoryLoadingStarted();
1405 }
1406
1407 void DolphinView::slotDirectoryLoadingCompleted()
1408 {
1409     // Update the view-state. This has to be done asynchronously
1410     // because the view might not be in its final state yet.
1411     QTimer::singleShot(0, this, SLOT(updateViewState()));
1412
1413     emit directoryLoadingCompleted();
1414
1415     updateWritableState();
1416 }
1417
1418 void DolphinView::slotItemsChanged()
1419 {
1420     m_assureVisibleCurrentIndex = false;
1421 }
1422
1423 void DolphinView::slotSortOrderChangedByHeader(Qt::SortOrder current, Qt::SortOrder previous)
1424 {
1425     Q_UNUSED(previous);
1426     Q_ASSERT(m_model->sortOrder() == current);
1427
1428     ViewProperties props(viewPropertiesUrl());
1429     props.setSortOrder(current);
1430
1431     emit sortOrderChanged(current);
1432 }
1433
1434 void DolphinView::slotSortRoleChangedByHeader(const QByteArray& current, const QByteArray& previous)
1435 {
1436     Q_UNUSED(previous);
1437     Q_ASSERT(m_model->sortRole() == current);
1438
1439     ViewProperties props(viewPropertiesUrl());
1440     props.setSortRole(current);
1441
1442     emit sortRoleChanged(current);
1443 }
1444
1445 void DolphinView::slotVisibleRolesChangedByHeader(const QList<QByteArray>& current,
1446                                                   const QList<QByteArray>& previous)
1447 {
1448     Q_UNUSED(previous);
1449     Q_ASSERT(m_container->controller()->view()->visibleRoles() == current);
1450
1451     const QList<QByteArray> previousVisibleRoles = m_visibleRoles;
1452
1453     m_visibleRoles = current;
1454
1455     ViewProperties props(viewPropertiesUrl());
1456     props.setVisibleRoles(m_visibleRoles);
1457
1458     emit visibleRolesChanged(m_visibleRoles, previousVisibleRoles);
1459 }
1460
1461 void DolphinView::slotRoleEditingCanceled()
1462 {
1463     disconnect(m_view, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)),
1464                this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant)));
1465 }
1466
1467 void DolphinView::slotRoleEditingFinished(int index, const QByteArray& role, const QVariant& value)
1468 {
1469     disconnect(m_view, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)),
1470                this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant)));
1471
1472     if (index < 0 || index >= m_model->count()) {
1473         return;
1474     }
1475
1476     if (role == "text") {
1477         const KFileItem oldItem = m_model->fileItem(index);
1478         const QString newName = value.toString();
1479         if (!newName.isEmpty() && newName != oldItem.text() && newName != QLatin1String(".") && newName != QLatin1String("..")) {
1480             const KUrl oldUrl = oldItem.url();
1481
1482             const KUrl newUrl(url().path(KUrl::AddTrailingSlash) + newName);
1483             const bool newNameExistsAlready = (m_model->index(newUrl) >= 0);
1484             if (!newNameExistsAlready) {
1485                 // Only change the data in the model if no item with the new name
1486                 // is in the model yet. If there is an item with the new name
1487                 // already, calling KonqOperations::rename() will open a dialog
1488                 // asking for a new name, and KFileItemModel will update the
1489                 // data when the dir lister signals that the file name has changed.
1490                 QHash<QByteArray, QVariant> data;
1491                 data.insert(role, value);
1492                 m_model->setData(index, data);
1493             }
1494
1495             KonqOperations* op = KonqOperations::renameV2(this, oldUrl, newName);
1496             if (op) {
1497                 connect(op, SIGNAL(renamingFailed(KUrl,KUrl)), SLOT(slotRenamingFailed(KUrl,KUrl)));
1498             }
1499         }
1500     }
1501 }
1502
1503 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1504 {
1505     if (!url.isValid()) {
1506         const QString location(url.pathOrUrl());
1507         if (location.isEmpty()) {
1508             emit errorMessage(i18nc("@info:status", "The location is empty."));
1509         } else {
1510             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1511         }
1512         return;
1513     }
1514
1515     if (reload) {
1516         m_model->refreshDirectory(url);
1517     } else {
1518         m_model->loadDirectory(url);
1519     }
1520 }
1521
1522 void DolphinView::applyViewProperties()
1523 {
1524     const ViewProperties props(viewPropertiesUrl());
1525     applyViewProperties(props);
1526 }
1527
1528 void DolphinView::applyViewProperties(const ViewProperties& props)
1529 {
1530     m_view->beginTransaction();
1531
1532     const Mode mode = props.viewMode();
1533     if (m_mode != mode) {
1534         const Mode previousMode = m_mode;
1535         m_mode = mode;
1536
1537         // Changing the mode might result in changing
1538         // the zoom level. Remember the old zoom level so
1539         // that zoomLevelChanged() can get emitted.
1540         const int oldZoomLevel = m_view->zoomLevel();
1541         applyModeToView();
1542
1543         emit modeChanged(m_mode, previousMode);
1544
1545         if (m_view->zoomLevel() != oldZoomLevel) {
1546             emit zoomLevelChanged(m_view->zoomLevel(), oldZoomLevel);
1547         }
1548     }
1549
1550     const bool hiddenFilesShown = props.hiddenFilesShown();
1551     if (hiddenFilesShown != m_model->showHiddenFiles()) {
1552         m_model->setShowHiddenFiles(hiddenFilesShown);
1553         emit hiddenFilesShownChanged(hiddenFilesShown);
1554     }
1555
1556     const bool groupedSorting = props.groupedSorting();
1557     if (groupedSorting != m_model->groupedSorting()) {
1558         m_model->setGroupedSorting(groupedSorting);
1559         emit groupedSortingChanged(groupedSorting);
1560     }
1561
1562     const QByteArray sortRole = props.sortRole();
1563     if (sortRole != m_model->sortRole()) {
1564         m_model->setSortRole(sortRole);
1565         emit sortRoleChanged(sortRole);
1566     }
1567
1568     const Qt::SortOrder sortOrder = props.sortOrder();
1569     if (sortOrder != m_model->sortOrder()) {
1570         m_model->setSortOrder(sortOrder);
1571         emit sortOrderChanged(sortOrder);
1572     }
1573
1574     const bool sortFoldersFirst = props.sortFoldersFirst();
1575     if (sortFoldersFirst != m_model->sortDirectoriesFirst()) {
1576         m_model->setSortDirectoriesFirst(sortFoldersFirst);
1577         emit sortFoldersFirstChanged(sortFoldersFirst);
1578     }
1579
1580     const QList<QByteArray> visibleRoles = props.visibleRoles();
1581     if (visibleRoles != m_visibleRoles) {
1582         const QList<QByteArray> previousVisibleRoles = m_visibleRoles;
1583         m_visibleRoles = visibleRoles;
1584         m_view->setVisibleRoles(visibleRoles);
1585         emit visibleRolesChanged(m_visibleRoles, previousVisibleRoles);
1586     }
1587
1588     const bool previewsShown = props.previewsShown();
1589     if (previewsShown != m_view->previewsShown()) {
1590         const int oldZoomLevel = zoomLevel();
1591
1592         m_view->setPreviewsShown(previewsShown);
1593         emit previewsShownChanged(previewsShown);
1594
1595         // Changing the preview-state might result in a changed zoom-level
1596         if (oldZoomLevel != zoomLevel()) {
1597             emit zoomLevelChanged(zoomLevel(), oldZoomLevel);
1598         }
1599     }
1600
1601     KItemListView* itemListView = m_container->controller()->view();
1602     if (itemListView->isHeaderVisible()) {
1603         KItemListHeader* header = itemListView->header();
1604         const QList<int> headerColumnWidths = props.headerColumnWidths();
1605         const int rolesCount = m_visibleRoles.count();
1606         if (headerColumnWidths.count() == rolesCount) {
1607             header->setAutomaticColumnResizing(false);
1608
1609             QHash<QByteArray, qreal> columnWidths;
1610             for (int i = 0; i < rolesCount; ++i) {
1611                 columnWidths.insert(m_visibleRoles[i], headerColumnWidths[i]);
1612             }
1613             header->setColumnWidths(columnWidths);
1614         } else {
1615             header->setAutomaticColumnResizing(true);
1616         }
1617     }
1618
1619     m_view->endTransaction();
1620 }
1621
1622 void DolphinView::applyModeToView()
1623 {
1624     switch (m_mode) {
1625     case IconsView:   m_view->setItemLayout(KFileItemListView::IconsLayout); break;
1626     case CompactView: m_view->setItemLayout(KFileItemListView::CompactLayout); break;
1627     case DetailsView: m_view->setItemLayout(KFileItemListView::DetailsLayout); break;
1628     default: Q_ASSERT(false); break;
1629     }
1630 }
1631
1632 void DolphinView::pasteToUrl(const KUrl& url)
1633 {
1634     KonqOperations* op = KonqOperations::doPasteV2(this, url);
1635     if (op) {
1636         m_clearSelectionBeforeSelectingNewItems = true;
1637         m_markFirstNewlySelectedItemAsCurrent = true;
1638         connect(op, SIGNAL(aboutToCreate(KUrl::List)), this, SLOT(slotAboutToCreate(KUrl::List)));
1639     }
1640 }
1641
1642 KUrl::List DolphinView::simplifiedSelectedUrls() const
1643 {
1644     KUrl::List urls;
1645
1646     const KFileItemList items = selectedItems();
1647     foreach (const KFileItem& item, items) {
1648         urls.append(item.url());
1649     }
1650
1651     if (itemsExpandable()) {
1652         // TODO: Check if we still need KDirModel for this in KDE 5.0
1653         urls = KDirModel::simplifiedUrlList(urls);
1654     }
1655
1656     return urls;
1657 }
1658
1659 QMimeData* DolphinView::selectionMimeData() const
1660 {
1661     const KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
1662     const QSet<int> selectedIndexes = selectionManager->selectedItems();
1663
1664     return m_model->createMimeData(selectedIndexes);
1665 }
1666
1667 void DolphinView::updateWritableState()
1668 {
1669     const bool wasFolderWritable = m_isFolderWritable;
1670     m_isFolderWritable = false;
1671
1672     const KFileItem item = m_model->rootItem();
1673     if (!item.isNull()) {
1674         KFileItemListProperties capabilities(KFileItemList() << item);
1675         m_isFolderWritable = capabilities.supportsWriting();
1676     }
1677     if (m_isFolderWritable != wasFolderWritable) {
1678         emit writeStateChanged(m_isFolderWritable);
1679     }
1680 }
1681
1682 KUrl DolphinView::viewPropertiesUrl() const
1683 {
1684     if (m_viewPropertiesContext.isEmpty()) {
1685         return m_url;
1686     }
1687
1688     KUrl url;
1689     url.setProtocol(m_url.protocol());
1690     url.setPath(m_viewPropertiesContext);
1691     return url;
1692 }
1693
1694 #include "dolphinview.moc"