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-baloo.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_BALOO
  78     #include <baloo/indexerconfig.h>
  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(KItemSet)), this, SLOT(slotItemsActivated(KItemSet)));
 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(KItemSet,KItemSet)),
 188             this, SLOT(slotSelectionChanged(KItemSet,KItemSet)));
 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
 354     KFileItemList selectedItems;
 355     foreach (int index, selectionManager->selectedItems()) {
 356         selectedItems.append(m_model->fileItem(index));
 357     }
 358     return selectedItems;
 359 }
 360
 361 int DolphinView::selectedItemsCount() const
 362 {
 363     const KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 364     return selectionManager->selectedItems().count();
 365 }
 366
 367 void DolphinView::markUrlsAsSelected(const QList<KUrl>& urls)
 368 {
 369     m_selectedUrls = urls;
 370 }
 371
 372 void DolphinView::markUrlAsCurrent(const KUrl& url)
 373 {
 374     m_currentItemUrl = url;
 375     m_scrollToCurrentItem = true;
 376 }
 377
 378 void DolphinView::selectItems(const QRegExp& pattern, bool enabled)
 379 {
 380     const KItemListSelectionManager::SelectionMode mode = enabled
 381                                                         ? KItemListSelectionManager::Select
 382                                                         : KItemListSelectionManager::Deselect;
 383     KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 384
 385     for (int index = 0; index < m_model->count(); index++) {
 386         const KFileItem item = m_model->fileItem(index);
 387         if (pattern.exactMatch(item.text())) {
 388             // An alternative approach would be to store the matching items in a KItemSet and
 389             // select them in one go after the loop, but we'd need a new function
 390             // KItemListSelectionManager::setSelected(KItemSet, SelectionMode mode)
 391             // for that.
 392             selectionManager->setSelected(index, 1, mode);
 393         }
 394     }
 395 }
 396
 397 void DolphinView::setZoomLevel(int level)
 398 {
 399     const int oldZoomLevel = zoomLevel();
 400     m_view->setZoomLevel(level);
 401     if (zoomLevel() != oldZoomLevel) {
 402         hideToolTip();
 403         emit zoomLevelChanged(zoomLevel(), oldZoomLevel);
 404     }
 405 }
 406
 407 int DolphinView::zoomLevel() const
 408 {
 409     return m_view->zoomLevel();
 410 }
 411
 412 void DolphinView::setSortRole(const QByteArray& role)
 413 {
 414     if (role != sortRole()) {
 415         updateSortRole(role);
 416     }
 417 }
 418
 419 QByteArray DolphinView::sortRole() const
 420 {
 421     const KItemModelBase* model = m_container->controller()->model();
 422     return model->sortRole();
 423 }
 424
 425 void DolphinView::setSortOrder(Qt::SortOrder order)
 426 {
 427     if (sortOrder() != order) {
 428         updateSortOrder(order);
 429     }
 430 }
 431
 432 Qt::SortOrder DolphinView::sortOrder() const
 433 {
 434     return m_model->sortOrder();
 435 }
 436
 437 void DolphinView::setSortFoldersFirst(bool foldersFirst)
 438 {
 439     if (sortFoldersFirst() != foldersFirst) {
 440         updateSortFoldersFirst(foldersFirst);
 441     }
 442 }
 443
 444 bool DolphinView::sortFoldersFirst() const
 445 {
 446     return m_model->sortDirectoriesFirst();
 447 }
 448
 449 void DolphinView::setVisibleRoles(const QList<QByteArray>& roles)
 450 {
 451     const QList<QByteArray> previousRoles = roles;
 452
 453     ViewProperties props(viewPropertiesUrl());
 454     props.setVisibleRoles(roles);
 455
 456     m_visibleRoles = roles;
 457     m_view->setVisibleRoles(roles);
 458
 459     emit visibleRolesChanged(m_visibleRoles, previousRoles);
 460 }
 461
 462 QList<QByteArray> DolphinView::visibleRoles() const
 463 {
 464     return m_visibleRoles;
 465 }
 466
 467 void DolphinView::reload()
 468 {
 469     QByteArray viewState;
 470     QDataStream saveStream(&viewState, QIODevice::WriteOnly);
 471     saveState(saveStream);
 472
 473     const KFileItemList itemList = selectedItems();
 474     m_selectedUrls.clear();
 475     m_selectedUrls = itemList.urlList();
 476
 477     setUrl(url());
 478     loadDirectory(url(), true);
 479
 480     QDataStream restoreStream(viewState);
 481     restoreState(restoreStream);
 482 }
 483
 484 void DolphinView::readSettings()
 485 {
 486     const int oldZoomLevel = m_view->zoomLevel();
 487
 488     GeneralSettings::self()->readConfig();
 489     m_view->readSettings();
 490     applyViewProperties();
 491
 492     const int delay = GeneralSettings::autoExpandFolders() ? 750 : -1;
 493     m_container->controller()->setAutoActivationDelay(delay);
 494
 495     const int newZoomLevel = m_view->zoomLevel();
 496     if (newZoomLevel != oldZoomLevel) {
 497         emit zoomLevelChanged(newZoomLevel, oldZoomLevel);
 498     }
 499 }
 500
 501 void DolphinView::writeSettings()
 502 {
 503     GeneralSettings::self()->writeConfig();
 504     m_view->writeSettings();
 505 }
 506
 507 void DolphinView::setNameFilter(const QString& nameFilter)
 508 {
 509     m_model->setNameFilter(nameFilter);
 510 }
 511
 512 QString DolphinView::nameFilter() const
 513 {
 514     return m_model->nameFilter();
 515 }
 516
 517 void DolphinView::setMimeTypeFilters(const QStringList& filters)
 518 {
 519     return m_model->setMimeTypeFilters(filters);
 520 }
 521
 522 QStringList DolphinView::mimeTypeFilters() const
 523 {
 524     return m_model->mimeTypeFilters();
 525 }
 526
 527 QString DolphinView::statusBarText() const
 528 {
 529     QString summary;
 530     QString foldersText;
 531     QString filesText;
 532
 533     int folderCount = 0;
 534     int fileCount = 0;
 535     KIO::filesize_t totalFileSize = 0;
 536
 537     if (m_container->controller()->selectionManager()->hasSelection()) {
 538         // Give a summary of the status of the selected files
 539         const KFileItemList list = selectedItems();
 540         foreach (const KFileItem& item, list) {
 541             if (item.isDir()) {
 542                 ++folderCount;
 543             } else {
 544                 ++fileCount;
 545                 totalFileSize += item.size();
 546             }
 547         }
 548
 549         if (folderCount + fileCount == 1) {
 550             // If only one item is selected, show info about it
 551             return list.first().getStatusBarInfo();
 552         } else {
 553             // At least 2 items are selected
 554             foldersText = i18ncp("@info:status", "1 Folder selected", "%1 Folders selected", folderCount);
 555             filesText = i18ncp("@info:status", "1 File selected", "%1 Files selected", fileCount);
 556         }
 557     } else {
 558         calculateItemCount(fileCount, folderCount, totalFileSize);
 559         foldersText = i18ncp("@info:status", "1 Folder", "%1 Folders", folderCount);
 560         filesText = i18ncp("@info:status", "1 File", "%1 Files", fileCount);
 561     }
 562
 563     if (fileCount > 0 && folderCount > 0) {
 564         summary = i18nc("@info:status folders, files (size)", "%1, %2 (%3)",
 565                         foldersText, filesText,
 566                         KGlobal::locale()->formatByteSize(totalFileSize));
 567     } else if (fileCount > 0) {
 568         summary = i18nc("@info:status files (size)", "%1 (%2)",
 569                         filesText,
 570                         KGlobal::locale()->formatByteSize(totalFileSize));
 571     } else if (folderCount > 0) {
 572         summary = foldersText;
 573     } else {
 574         summary = i18nc("@info:status", "0 Folders, 0 Files");
 575     }
 576
 577     return summary;
 578 }
 579
 580 QList<QAction*> DolphinView::versionControlActions(const KFileItemList& items) const
 581 {
 582     QList<QAction*> actions;
 583
 584     if (items.isEmpty()) {
 585         const KFileItem item = m_model->rootItem();
 586         if (!item.isNull()) {
 587             actions = m_versionControlObserver->actions(KFileItemList() << item);
 588         }
 589     } else {
 590         actions = m_versionControlObserver->actions(items);
 591     }
 592
 593     return actions;
 594 }
 595
 596 void DolphinView::setUrl(const KUrl& url)
 597 {
 598     if (url == m_url) {
 599         return;
 600     }
 601
 602     clearSelection();
 603
 604     emit urlAboutToBeChanged(url);
 605     m_url = url;
 606
 607     hideToolTip();
 608
 609     disconnect(m_view, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)),
 610                this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant)));
 611
 612     // It is important to clear the items from the model before
 613     // applying the view properties, otherwise expensive operations
 614     // might be done on the existing items although they get cleared
 615     // anyhow afterwards by loadDirectory().
 616     m_model->clear();
 617     applyViewProperties();
 618     loadDirectory(url);
 619
 620     emit urlChanged(url);
 621 }
 622
 623 void DolphinView::selectAll()
 624 {
 625     KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 626     selectionManager->setSelected(0, m_model->count());
 627 }
 628
 629 void DolphinView::invertSelection()
 630 {
 631     KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 632     selectionManager->setSelected(0, m_model->count(), KItemListSelectionManager::Toggle);
 633 }
 634
 635 void DolphinView::clearSelection()
 636 {
 637     m_selectedUrls.clear();
 638     m_container->controller()->selectionManager()->clearSelection();
 639 }
 640
 641 void DolphinView::renameSelectedItems()
 642 {
 643     const KFileItemList items = selectedItems();
 644     if (items.isEmpty()) {
 645         return;
 646     }
 647
 648     if (items.count() == 1 && GeneralSettings::renameInline()) {
 649         const int index = m_model->index(items.first());
 650         m_view->editRole(index, "text");
 651
 652         hideToolTip();
 653
 654         connect(m_view, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)),
 655                 this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant)));
 656     } else {
 657         RenameDialog* dialog = new RenameDialog(this, items);
 658         dialog->setAttribute(Qt::WA_DeleteOnClose);
 659         dialog->show();
 660         dialog->raise();
 661         dialog->activateWindow();
 662     }
 663
 664     // Assure that the current index remains visible when KFileItemModel
 665     // will notify the view about changed items (which might result in
 666     // a changed sorting).
 667     m_assureVisibleCurrentIndex = true;
 668 }
 669
 670 void DolphinView::trashSelectedItems()
 671 {
 672     const KUrl::List list = simplifiedSelectedUrls();
 673     KonqOperations::del(this, KonqOperations::TRASH, list);
 674 }
 675
 676 void DolphinView::deleteSelectedItems()
 677 {
 678     const KUrl::List list = simplifiedSelectedUrls();
 679     const bool del = KonqOperations::askDeleteConfirmation(list,
 680                      KonqOperations::DEL,
 681                      KonqOperations::DEFAULT_CONFIRMATION,
 682                      this);
 683
 684     if (del) {
 685         KIO::Job* job = KIO::del(list);
 686         if (job->ui()) {
 687             job->ui()->setWindow(this);
 688         }
 689         connect(job, SIGNAL(result(KJob*)),
 690                 this, SLOT(slotDeleteFileFinished(KJob*)));
 691     }
 692 }
 693
 694 void DolphinView::cutSelectedItems()
 695 {
 696     QMimeData* mimeData = selectionMimeData();
 697     KonqMimeData::addIsCutSelection(mimeData, true);
 698     QApplication::clipboard()->setMimeData(mimeData);
 699 }
 700
 701 void DolphinView::copySelectedItems()
 702 {
 703     QMimeData* mimeData = selectionMimeData();
 704     QApplication::clipboard()->setMimeData(mimeData);
 705 }
 706
 707 void DolphinView::paste()
 708 {
 709     pasteToUrl(url());
 710 }
 711
 712 void DolphinView::pasteIntoFolder()
 713 {
 714     const KFileItemList items = selectedItems();
 715     if ((items.count() == 1) && items.first().isDir()) {
 716         pasteToUrl(items.first().url());
 717     }
 718 }
 719
 720 void DolphinView::stopLoading()
 721 {
 722     m_model->cancelDirectoryLoading();
 723 }
 724
 725 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 726 {
 727     switch (event->type()) {
 728     case QEvent::FocusIn:
 729         if (watched == m_container) {
 730             setActive(true);
 731         }
 732         break;
 733
 734     case QEvent::GraphicsSceneDragEnter:
 735         if (watched == m_view) {
 736             m_dragging = true;
 737         }
 738         break;
 739
 740     case QEvent::GraphicsSceneDragLeave:
 741         if (watched == m_view) {
 742             m_dragging = false;
 743         }
 744         break;
 745
 746     case QEvent::GraphicsSceneDrop:
 747         if (watched == m_view) {
 748             m_dragging = false;
 749         }
 750     default:
 751         break;
 752     }
 753
 754     return QWidget::eventFilter(watched, event);
 755 }
 756
 757 void DolphinView::wheelEvent(QWheelEvent* event)
 758 {
 759     if (event->modifiers().testFlag(Qt::ControlModifier)) {
 760         const int numDegrees = event->delta() / 8;
 761         const int numSteps = numDegrees / 15;
 762
 763         setZoomLevel(zoomLevel() + numSteps);
 764         event->accept();
 765     } else {
 766         event->ignore();
 767     }
 768 }
 769
 770 void DolphinView::hideEvent(QHideEvent* event)
 771 {
 772     hideToolTip();
 773     QWidget::hideEvent(event);
 774 }
 775
 776 bool DolphinView::event(QEvent* event)
 777 {
 778     /* See Bug 297355
 779      * Dolphin leaves file preview tooltips open even when is not visible.
 780      *
 781      * Hide tool-tip when Dolphin loses focus.
 782      */
 783     if (event->type() == QEvent::WindowDeactivate) {
 784         hideToolTip();
 785     }
 786
 787     return QWidget::event(event);
 788 }
 789
 790 void DolphinView::activate()
 791 {
 792     setActive(true);
 793 }
 794
 795 void DolphinView::slotItemActivated(int index)
 796 {
 797     const KFileItem item = m_model->fileItem(index);
 798     if (!item.isNull()) {
 799         emit itemActivated(item);
 800     }
 801 }
 802
 803 void DolphinView::slotItemsActivated(const KItemSet& indexes)
 804 {
 805     Q_ASSERT(indexes.count() >= 2);
 806
 807     if (indexes.count() > 5) {
 808         QString question = i18np("Are you sure you want to open 1 item?", "Are you sure you want to open %1 items?", indexes.count());
 809         const int answer = KMessageBox::warningYesNo(this, question);
 810         if (answer != KMessageBox::Yes) {
 811             return;
 812         }
 813     }
 814
 815     KFileItemList items;
 816     items.reserve(indexes.count());
 817
 818     foreach (int index, indexes) {
 819         KFileItem item = m_model->fileItem(index);
 820         const KUrl& url = openItemAsFolderUrl(item);
 821
 822         if (!url.isEmpty()) { // Open folders in new tabs
 823             emit tabRequested(url);
 824         } else {
 825             items.append(item);
 826         }
 827     }
 828
 829     if (items.count() == 1) {
 830         emit itemActivated(items.first());
 831     } else if (items.count() > 1) {
 832         emit itemsActivated(items);
 833     }
 834 }
 835
 836 void DolphinView::slotItemMiddleClicked(int index)
 837 {
 838     const KFileItem& item = m_model->fileItem(index);
 839     const KUrl& url = openItemAsFolderUrl(item);
 840     if (!url.isEmpty()) {
 841         emit tabRequested(url);
 842     } else if (isTabsForFilesEnabled()) {
 843         emit tabRequested(item.url());
 844     }
 845 }
 846
 847 void DolphinView::slotItemContextMenuRequested(int index, const QPointF& pos)
 848 {
 849     // Force emit of a selection changed signal before we request the
 850     // context menu, to update the edit-actions first. (See Bug 294013)
 851     if (m_selectionChangedTimer->isActive()) {
 852         emitSelectionChangedSignal();
 853     }
 854
 855     const KFileItem item = m_model->fileItem(index);
 856     emit requestContextMenu(pos.toPoint(), item, url(), QList<QAction*>());
 857 }
 858
 859 void DolphinView::slotViewContextMenuRequested(const QPointF& pos)
 860 {
 861     emit requestContextMenu(pos.toPoint(), KFileItem(), url(), QList<QAction*>());
 862 }
 863
 864 void DolphinView::slotHeaderContextMenuRequested(const QPointF& pos)
 865 {
 866     ViewProperties props(viewPropertiesUrl());
 867
 868     QPointer<KMenu> menu = new KMenu(QApplication::activeWindow());
 869
 870     KItemListView* view = m_container->controller()->view();
 871     const QSet<QByteArray> visibleRolesSet = view->visibleRoles().toSet();
 872
 873     bool indexingEnabled = false;
 874 #ifdef HAVE_BALOO
 875     Baloo::IndexerConfig config;
 876     indexingEnabled = config.fileIndexingEnabled();
 877 #endif
 878
 879     QString groupName;
 880     QMenu* groupMenu = 0;
 881
 882     // Add all roles to the menu that can be shown or hidden by the user
 883     const QList<KFileItemModel::RoleInfo> rolesInfo = KFileItemModel::rolesInformation();
 884     foreach (const KFileItemModel::RoleInfo& info, rolesInfo) {
 885         if (info.role == "text") {
 886             // It should not be possible to hide the "text" role
 887             continue;
 888         }
 889
 890         const QString text = m_model->roleDescription(info.role);
 891         QAction* action = 0;
 892         if (info.group.isEmpty()) {
 893             action = menu->addAction(text);
 894         } else {
 895             if (!groupMenu || info.group != groupName) {
 896                 groupName = info.group;
 897                 groupMenu = menu->addMenu(groupName);
 898             }
 899
 900             action = groupMenu->addAction(text);
 901         }
 902
 903         action->setCheckable(true);
 904         action->setChecked(visibleRolesSet.contains(info.role));
 905         action->setData(info.role);
 906
 907         const bool enable = (!info.requiresBaloo && !info.requiresIndexer) ||
 908                             (info.requiresBaloo) ||
 909                             (info.requiresIndexer && indexingEnabled);
 910         action->setEnabled(enable);
 911     }
 912
 913     menu->addSeparator();
 914
 915     QActionGroup* widthsGroup = new QActionGroup(menu);
 916     const bool autoColumnWidths = props.headerColumnWidths().isEmpty();
 917
 918     QAction* autoAdjustWidthsAction = menu->addAction(i18nc("@action:inmenu", "Automatic Column Widths"));
 919     autoAdjustWidthsAction->setCheckable(true);
 920     autoAdjustWidthsAction->setChecked(autoColumnWidths);
 921     autoAdjustWidthsAction->setActionGroup(widthsGroup);
 922
 923     QAction* customWidthsAction = menu->addAction(i18nc("@action:inmenu", "Custom Column Widths"));
 924     customWidthsAction->setCheckable(true);
 925     customWidthsAction->setChecked(!autoColumnWidths);
 926     customWidthsAction->setActionGroup(widthsGroup);
 927
 928     QAction* action = menu->exec(pos.toPoint());
 929     if (menu && action) {
 930         KItemListHeader* header = view->header();
 931
 932         if (action == autoAdjustWidthsAction) {
 933             // Clear the column-widths from the viewproperties and turn on
 934             // the automatic resizing of the columns
 935             props.setHeaderColumnWidths(QList<int>());
 936             header->setAutomaticColumnResizing(true);
 937         } else if (action == customWidthsAction) {
 938             // Apply the current column-widths as custom column-widths and turn
 939             // off the automatic resizing of the columns
 940             QList<int> columnWidths;
 941             foreach (const QByteArray& role, view->visibleRoles()) {
 942                 columnWidths.append(header->columnWidth(role));
 943             }
 944             props.setHeaderColumnWidths(columnWidths);
 945             header->setAutomaticColumnResizing(false);
 946         } else {
 947             // Show or hide the selected role
 948             const QByteArray selectedRole = action->data().toByteArray();
 949
 950             QList<QByteArray> visibleRoles = view->visibleRoles();
 951             if (action->isChecked()) {
 952                 visibleRoles.append(selectedRole);
 953             } else {
 954                 visibleRoles.removeOne(selectedRole);
 955             }
 956
 957             view->setVisibleRoles(visibleRoles);
 958             props.setVisibleRoles(visibleRoles);
 959
 960             QList<int> columnWidths;
 961             if (!header->automaticColumnResizing()) {
 962                 foreach (const QByteArray& role, view->visibleRoles()) {
 963                     columnWidths.append(header->columnWidth(role));
 964                 }
 965             }
 966             props.setHeaderColumnWidths(columnWidths);
 967         }
 968     }
 969
 970     delete menu;
 971 }
 972
 973 void DolphinView::slotHeaderColumnWidthChanged(const QByteArray& role, qreal current, qreal previous)
 974 {
 975     Q_UNUSED(previous);
 976
 977     const QList<QByteArray> visibleRoles = m_view->visibleRoles();
 978
 979     ViewProperties props(viewPropertiesUrl());
 980     QList<int> columnWidths = props.headerColumnWidths();
 981     if (columnWidths.count() != visibleRoles.count()) {
 982         columnWidths.clear();
 983         columnWidths.reserve(visibleRoles.count());
 984         const KItemListHeader* header = m_view->header();
 985         foreach (const QByteArray& role, visibleRoles) {
 986             const int width = header->columnWidth(role);
 987             columnWidths.append(width);
 988         }
 989     }
 990
 991     const int roleIndex = visibleRoles.indexOf(role);
 992     Q_ASSERT(roleIndex >= 0 && roleIndex < columnWidths.count());
 993     columnWidths[roleIndex] = current;
 994
 995     props.setHeaderColumnWidths(columnWidths);
 996 }
 997
 998 void DolphinView::slotItemHovered(int index)
 999 {
1000     const KFileItem item = m_model->fileItem(index);
1001
1002     if (GeneralSettings::showToolTips() && !m_dragging) {
1003         QRectF itemRect = m_container->controller()->view()->itemContextRect(index);
1004         const QPoint pos = m_container->mapToGlobal(itemRect.topLeft().toPoint());
1005         itemRect.moveTo(pos);
1006
1007         m_toolTipManager->showToolTip(item, itemRect);
1008     }
1009
1010     emit requestItemInfo(item);
1011 }
1012
1013 void DolphinView::slotItemUnhovered(int index)
1014 {
1015     Q_UNUSED(index);
1016     hideToolTip();
1017     emit requestItemInfo(KFileItem());
1018 }
1019
1020 void DolphinView::slotItemDropEvent(int index, QGraphicsSceneDragDropEvent* event)
1021 {
1022     KUrl destUrl;
1023     KFileItem destItem = m_model->fileItem(index);
1024     if (destItem.isNull() || (!destItem.isDir() && !destItem.isDesktopFile())) {
1025         // Use the URL of the view as drop target if the item is no directory
1026         // or desktop-file
1027         destItem = m_model->rootItem();
1028         destUrl = url();
1029     } else {
1030         // The item represents a directory or desktop-file
1031         destUrl = destItem.url();
1032     }
1033
1034     QDropEvent dropEvent(event->pos().toPoint(),
1035                          event->possibleActions(),
1036                          event->mimeData(),
1037                          event->buttons(),
1038                          event->modifiers());
1039
1040     QString error;
1041     KonqOperations* op = DragAndDropHelper::dropUrls(destItem, destUrl, &dropEvent, error);
1042     if (!error.isEmpty()) {
1043         emit infoMessage(error);
1044     }
1045
1046     if (op && destUrl == url()) {
1047         // Mark the dropped urls as selected.
1048         m_clearSelectionBeforeSelectingNewItems = true;
1049         m_markFirstNewlySelectedItemAsCurrent = true;
1050         connect(op, SIGNAL(aboutToCreate(KUrl::List)), this, SLOT(slotAboutToCreate(KUrl::List)));
1051     }
1052
1053     setActive(true);
1054 }
1055
1056 void DolphinView::slotModelChanged(KItemModelBase* current, KItemModelBase* previous)
1057 {
1058     if (previous != 0) {
1059         disconnect(previous, SIGNAL(directoryLoadingCompleted()), this, SLOT(slotDirectoryLoadingCompleted()));
1060         m_versionControlObserver->setModel(0);
1061     }
1062
1063     if (current) {
1064         Q_ASSERT(qobject_cast<KFileItemModel*>(current));
1065         connect(current, SIGNAL(loadingCompleted()), this, SLOT(slotDirectoryLoadingCompleted()));
1066
1067         KFileItemModel* fileItemModel = static_cast<KFileItemModel*>(current);
1068         m_versionControlObserver->setModel(fileItemModel);
1069     }
1070 }
1071
1072 void DolphinView::slotMouseButtonPressed(int itemIndex, Qt::MouseButtons buttons)
1073 {
1074     hideToolTip();
1075
1076     if (itemIndex < 0) {
1077         // Trigger the history navigation only when clicking on the viewport:
1078         // Above an item the XButtons provide a simple way to select items in
1079         // the singleClick mode.
1080         if (buttons & Qt::XButton1) {
1081             emit goBackRequested();
1082         } else if (buttons & Qt::XButton2) {
1083             emit goForwardRequested();
1084         }
1085     }
1086 }
1087
1088 void DolphinView::slotAboutToCreate(const KUrl::List& urls)
1089 {
1090     if (!urls.isEmpty()) {
1091         if (m_markFirstNewlySelectedItemAsCurrent) {
1092             markUrlAsCurrent(urls.first());
1093             m_markFirstNewlySelectedItemAsCurrent = false;
1094         }
1095         m_selectedUrls << KDirModel::simplifiedUrlList(urls);
1096     }
1097 }
1098
1099 void DolphinView::slotSelectionChanged(const KItemSet& current, const KItemSet& previous)
1100 {
1101     const int currentCount = current.count();
1102     const int previousCount = previous.count();
1103     const bool selectionStateChanged = (currentCount == 0 && previousCount  > 0) ||
1104                                        (currentCount >  0 && previousCount == 0);
1105
1106     // If nothing has been selected before and something got selected (or if something
1107     // was selected before and now nothing is selected) the selectionChangedSignal must
1108     // be emitted asynchronously as fast as possible to update the edit-actions.
1109     m_selectionChangedTimer->setInterval(selectionStateChanged ? 0 : 300);
1110     m_selectionChangedTimer->start();
1111 }
1112
1113 void DolphinView::emitSelectionChangedSignal()
1114 {
1115     m_selectionChangedTimer->stop();
1116     emit selectionChanged(selectedItems());
1117 }
1118
1119 void DolphinView::updateSortRole(const QByteArray& role)
1120 {
1121     ViewProperties props(viewPropertiesUrl());
1122     props.setSortRole(role);
1123
1124     KItemModelBase* model = m_container->controller()->model();
1125     model->setSortRole(role);
1126
1127     emit sortRoleChanged(role);
1128 }
1129
1130 void DolphinView::updateSortOrder(Qt::SortOrder order)
1131 {
1132     ViewProperties props(viewPropertiesUrl());
1133     props.setSortOrder(order);
1134
1135     m_model->setSortOrder(order);
1136
1137     emit sortOrderChanged(order);
1138 }
1139
1140 void DolphinView::updateSortFoldersFirst(bool foldersFirst)
1141 {
1142     ViewProperties props(viewPropertiesUrl());
1143     props.setSortFoldersFirst(foldersFirst);
1144
1145     m_model->setSortDirectoriesFirst(foldersFirst);
1146
1147     emit sortFoldersFirstChanged(foldersFirst);
1148 }
1149
1150 QPair<bool, QString> DolphinView::pasteInfo() const
1151 {
1152     return KonqOperations::pasteInfo(url());
1153 }
1154
1155 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
1156 {
1157     m_tabsForFiles = tabsForFiles;
1158 }
1159
1160 bool DolphinView::isTabsForFilesEnabled() const
1161 {
1162     return m_tabsForFiles;
1163 }
1164
1165 bool DolphinView::itemsExpandable() const
1166 {
1167     return m_mode == DetailsView;
1168 }
1169
1170 void DolphinView::restoreState(QDataStream& stream)
1171 {
1172     // Restore the current item that had the keyboard focus
1173     stream >> m_currentItemUrl;
1174
1175     // Restore the view position
1176     stream >> m_restoredContentsPosition;
1177
1178     // Restore expanded folders (only relevant for the details view - will be ignored by the view in other view modes)
1179     QSet<KUrl> urls;
1180     stream >> urls;
1181     m_model->restoreExpandedDirectories(urls);
1182 }
1183
1184 void DolphinView::saveState(QDataStream& stream)
1185 {
1186     // Save the current item that has the keyboard focus
1187     const int currentIndex = m_container->controller()->selectionManager()->currentItem();
1188     if (currentIndex != -1) {
1189         KFileItem item = m_model->fileItem(currentIndex);
1190         Q_ASSERT(!item.isNull()); // If the current index is valid a item must exist
1191         KUrl currentItemUrl = item.url();
1192         stream << currentItemUrl;
1193     } else {
1194         stream << KUrl();
1195     }
1196
1197     // Save view position
1198     const qreal x = m_container->horizontalScrollBar()->value();
1199     const qreal y = m_container->verticalScrollBar()->value();
1200     stream << QPoint(x, y);
1201
1202     // Save expanded folders (only relevant for the details view - the set will be empty in other view modes)
1203     stream << m_model->expandedDirectories();
1204 }
1205
1206 KFileItem DolphinView::rootItem() const
1207 {
1208     return m_model->rootItem();
1209 }
1210
1211 void DolphinView::setViewPropertiesContext(const QString& context)
1212 {
1213     m_viewPropertiesContext = context;
1214 }
1215
1216 QString DolphinView::viewPropertiesContext() const
1217 {
1218     return m_viewPropertiesContext;
1219 }
1220
1221 KUrl DolphinView::openItemAsFolderUrl(const KFileItem& item, const bool browseThroughArchives)
1222 {
1223     if (item.isNull()) {
1224         return KUrl();
1225     }
1226
1227     KUrl url = item.targetUrl();
1228
1229     if (item.isDir()) {
1230         return url;
1231     }
1232
1233     if (item.isMimeTypeKnown()) {
1234         const QString& mimetype = item.mimetype();
1235
1236         if (browseThroughArchives && item.isFile() && url.isLocalFile()) {
1237             // Generic mechanism for redirecting to tar:/<path>/ when clicking on a tar file,
1238             // zip:/<path>/ when clicking on a zip file, etc.
1239             // The .protocol file specifies the mimetype that the kioslave handles.
1240             // Note that we don't use mimetype inheritance since we don't want to
1241             // open OpenDocument files as zip folders...
1242             const QString& protocol = KProtocolManager::protocolForArchiveMimetype(mimetype);
1243             if (!protocol.isEmpty()) {
1244                 url.setProtocol(protocol);
1245                 return url;
1246             }
1247         }
1248
1249         if (mimetype == QLatin1String("application/x-desktop")) {
1250             // Redirect to the URL in Type=Link desktop files, unless it is a http(s) URL.
1251             KDesktopFile desktopFile(url.toLocalFile());
1252             if (desktopFile.hasLinkType()) {
1253                 const QString linkUrl = desktopFile.readUrl();
1254                 if (!linkUrl.startsWith(QLatin1String("http"))) {
1255                     return linkUrl;
1256                 }
1257             }
1258         }
1259     }
1260
1261     return KUrl();
1262 }
1263
1264 void DolphinView::observeCreatedItem(const KUrl& url)
1265 {
1266     if (m_active) {
1267         clearSelection();
1268         markUrlAsCurrent(url);
1269         markUrlsAsSelected(QList<KUrl>() << url);
1270     }
1271 }
1272
1273 void DolphinView::slotDirectoryRedirection(const KUrl& oldUrl, const KUrl& newUrl)
1274 {
1275     if (oldUrl.equals(url(), KUrl::CompareWithoutTrailingSlash)) {
1276         emit redirection(oldUrl, newUrl);
1277         m_url = newUrl; // #186947
1278     }
1279 }
1280
1281 void DolphinView::updateViewState()
1282 {
1283     if (m_currentItemUrl != KUrl()) {
1284         KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
1285         const int currentIndex = m_model->index(m_currentItemUrl);
1286         if (currentIndex != -1) {
1287             selectionManager->setCurrentItem(currentIndex);
1288
1289             // scroll to current item and reset the state
1290             if (m_scrollToCurrentItem) {
1291                 m_view->scrollToItem(currentIndex);
1292                 m_scrollToCurrentItem = false;
1293             }
1294
1295             m_currentItemUrl = KUrl();
1296         } else {
1297             selectionManager->setCurrentItem(0);
1298         }
1299     }
1300
1301     if (!m_restoredContentsPosition.isNull()) {
1302         const int x = m_restoredContentsPosition.x();
1303         const int y = m_restoredContentsPosition.y();
1304         m_restoredContentsPosition = QPoint();
1305
1306         m_container->horizontalScrollBar()->setValue(x);
1307         m_container->verticalScrollBar()->setValue(y);
1308     }
1309
1310     if (!m_selectedUrls.isEmpty()) {
1311         KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
1312
1313         if (m_clearSelectionBeforeSelectingNewItems) {
1314             selectionManager->clearSelection();
1315             m_clearSelectionBeforeSelectingNewItems = false;
1316         }
1317
1318         KItemSet selectedItems = selectionManager->selectedItems();
1319
1320         QList<KUrl>::iterator it = m_selectedUrls.begin();
1321         while (it != m_selectedUrls.end()) {
1322             const int index = m_model->index(*it);
1323             if (index >= 0) {
1324                 selectedItems.insert(index);
1325                 it = m_selectedUrls.erase(it);
1326             } else {
1327                  ++it;
1328             }
1329         }
1330
1331         selectionManager->setSelectedItems(selectedItems);
1332     }
1333 }
1334
1335 void DolphinView::hideToolTip()
1336 {
1337     if (GeneralSettings::showToolTips()) {
1338         m_toolTipManager->hideToolTip();
1339     }
1340 }
1341
1342 void DolphinView::calculateItemCount(int& fileCount,
1343                                      int& folderCount,
1344                                      KIO::filesize_t& totalFileSize) const
1345 {
1346     const int itemCount = m_model->count();
1347     for (int i = 0; i < itemCount; ++i) {
1348         const KFileItem item = m_model->fileItem(i);
1349         if (item.isDir()) {
1350             ++folderCount;
1351         } else {
1352             ++fileCount;
1353             totalFileSize += item.size();
1354         }
1355     }
1356 }
1357
1358 void DolphinView::showHoverInformation(const KFileItem& item)
1359 {
1360     emit requestItemInfo(item);
1361 }
1362
1363 void DolphinView::clearHoverInformation()
1364 {
1365     emit requestItemInfo(KFileItem());
1366 }
1367
1368 void DolphinView::slotDeleteFileFinished(KJob* job)
1369 {
1370     if (job->error() == 0) {
1371         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1372     } else if (job->error() != KIO::ERR_USER_CANCELED) {
1373         emit errorMessage(job->errorString());
1374     }
1375 }
1376
1377 void DolphinView::slotRenamingFailed(const KUrl& oldUrl, const KUrl& newUrl)
1378 {
1379     const int index = m_model->index(newUrl);
1380     if (index >= 0) {
1381         QHash<QByteArray, QVariant> data;
1382         data.insert("text", oldUrl.fileName());
1383         m_model->setData(index, data);
1384     }
1385 }
1386
1387 void DolphinView::slotDirectoryLoadingStarted()
1388 {
1389     // Disable the writestate temporary until it can be determined in a fast way
1390     // in DolphinView::slotLoadingCompleted()
1391     if (m_isFolderWritable) {
1392         m_isFolderWritable = false;
1393         emit writeStateChanged(m_isFolderWritable);
1394     }
1395
1396     emit directoryLoadingStarted();
1397 }
1398
1399 void DolphinView::slotDirectoryLoadingCompleted()
1400 {
1401     // Update the view-state. This has to be done asynchronously
1402     // because the view might not be in its final state yet.
1403     QTimer::singleShot(0, this, SLOT(updateViewState()));
1404
1405     emit directoryLoadingCompleted();
1406
1407     updateWritableState();
1408 }
1409
1410 void DolphinView::slotItemsChanged()
1411 {
1412     m_assureVisibleCurrentIndex = false;
1413 }
1414
1415 void DolphinView::slotSortOrderChangedByHeader(Qt::SortOrder current, Qt::SortOrder previous)
1416 {
1417     Q_UNUSED(previous);
1418     Q_ASSERT(m_model->sortOrder() == current);
1419
1420     ViewProperties props(viewPropertiesUrl());
1421     props.setSortOrder(current);
1422
1423     emit sortOrderChanged(current);
1424 }
1425
1426 void DolphinView::slotSortRoleChangedByHeader(const QByteArray& current, const QByteArray& previous)
1427 {
1428     Q_UNUSED(previous);
1429     Q_ASSERT(m_model->sortRole() == current);
1430
1431     ViewProperties props(viewPropertiesUrl());
1432     props.setSortRole(current);
1433
1434     emit sortRoleChanged(current);
1435 }
1436
1437 void DolphinView::slotVisibleRolesChangedByHeader(const QList<QByteArray>& current,
1438                                                   const QList<QByteArray>& previous)
1439 {
1440     Q_UNUSED(previous);
1441     Q_ASSERT(m_container->controller()->view()->visibleRoles() == current);
1442
1443     const QList<QByteArray> previousVisibleRoles = m_visibleRoles;
1444
1445     m_visibleRoles = current;
1446
1447     ViewProperties props(viewPropertiesUrl());
1448     props.setVisibleRoles(m_visibleRoles);
1449
1450     emit visibleRolesChanged(m_visibleRoles, previousVisibleRoles);
1451 }
1452
1453 void DolphinView::slotRoleEditingCanceled()
1454 {
1455     disconnect(m_view, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)),
1456                this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant)));
1457 }
1458
1459 void DolphinView::slotRoleEditingFinished(int index, const QByteArray& role, const QVariant& value)
1460 {
1461     disconnect(m_view, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)),
1462                this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant)));
1463
1464     if (index < 0 || index >= m_model->count()) {
1465         return;
1466     }
1467
1468     if (role == "text") {
1469         const KFileItem oldItem = m_model->fileItem(index);
1470         const QString newName = value.toString();
1471         if (!newName.isEmpty() && newName != oldItem.text() && newName != QLatin1String(".") && newName != QLatin1String("..")) {
1472             const KUrl oldUrl = oldItem.url();
1473
1474             const KUrl newUrl(url().path(KUrl::AddTrailingSlash) + newName);
1475             const bool newNameExistsAlready = (m_model->index(newUrl) >= 0);
1476             if (!newNameExistsAlready) {
1477                 // Only change the data in the model if no item with the new name
1478                 // is in the model yet. If there is an item with the new name
1479                 // already, calling KonqOperations::rename() will open a dialog
1480                 // asking for a new name, and KFileItemModel will update the
1481                 // data when the dir lister signals that the file name has changed.
1482                 QHash<QByteArray, QVariant> data;
1483                 data.insert(role, value);
1484                 m_model->setData(index, data);
1485             }
1486
1487             KonqOperations* op = KonqOperations::renameV2(this, oldUrl, newName);
1488             if (op && !newNameExistsAlready) {
1489                 // Only connect the renamingFailed signal if there is no item with the new name
1490                 // in the model yet, see bug 328262.
1491                 connect(op, SIGNAL(renamingFailed(KUrl,KUrl)), SLOT(slotRenamingFailed(KUrl,KUrl)));
1492             }
1493         }
1494     }
1495 }
1496
1497 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1498 {
1499     if (!url.isValid()) {
1500         const QString location(url.pathOrUrl());
1501         if (location.isEmpty()) {
1502             emit errorMessage(i18nc("@info:status", "The location is empty."));
1503         } else {
1504             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1505         }
1506         return;
1507     }
1508
1509     if (reload) {
1510         m_model->refreshDirectory(url);
1511     } else {
1512         m_model->loadDirectory(url);
1513     }
1514 }
1515
1516 void DolphinView::applyViewProperties()
1517 {
1518     const ViewProperties props(viewPropertiesUrl());
1519     applyViewProperties(props);
1520 }
1521
1522 void DolphinView::applyViewProperties(const ViewProperties& props)
1523 {
1524     m_view->beginTransaction();
1525
1526     const Mode mode = props.viewMode();
1527     if (m_mode != mode) {
1528         const Mode previousMode = m_mode;
1529         m_mode = mode;
1530
1531         // Changing the mode might result in changing
1532         // the zoom level. Remember the old zoom level so
1533         // that zoomLevelChanged() can get emitted.
1534         const int oldZoomLevel = m_view->zoomLevel();
1535         applyModeToView();
1536
1537         emit modeChanged(m_mode, previousMode);
1538
1539         if (m_view->zoomLevel() != oldZoomLevel) {
1540             emit zoomLevelChanged(m_view->zoomLevel(), oldZoomLevel);
1541         }
1542     }
1543
1544     const bool hiddenFilesShown = props.hiddenFilesShown();
1545     if (hiddenFilesShown != m_model->showHiddenFiles()) {
1546         m_model->setShowHiddenFiles(hiddenFilesShown);
1547         emit hiddenFilesShownChanged(hiddenFilesShown);
1548     }
1549
1550     const bool groupedSorting = props.groupedSorting();
1551     if (groupedSorting != m_model->groupedSorting()) {
1552         m_model->setGroupedSorting(groupedSorting);
1553         emit groupedSortingChanged(groupedSorting);
1554     }
1555
1556     const QByteArray sortRole = props.sortRole();
1557     if (sortRole != m_model->sortRole()) {
1558         m_model->setSortRole(sortRole);
1559         emit sortRoleChanged(sortRole);
1560     }
1561
1562     const Qt::SortOrder sortOrder = props.sortOrder();
1563     if (sortOrder != m_model->sortOrder()) {
1564         m_model->setSortOrder(sortOrder);
1565         emit sortOrderChanged(sortOrder);
1566     }
1567
1568     const bool sortFoldersFirst = props.sortFoldersFirst();
1569     if (sortFoldersFirst != m_model->sortDirectoriesFirst()) {
1570         m_model->setSortDirectoriesFirst(sortFoldersFirst);
1571         emit sortFoldersFirstChanged(sortFoldersFirst);
1572     }
1573
1574     const QList<QByteArray> visibleRoles = props.visibleRoles();
1575     if (visibleRoles != m_visibleRoles) {
1576         const QList<QByteArray> previousVisibleRoles = m_visibleRoles;
1577         m_visibleRoles = visibleRoles;
1578         m_view->setVisibleRoles(visibleRoles);
1579         emit visibleRolesChanged(m_visibleRoles, previousVisibleRoles);
1580     }
1581
1582     const bool previewsShown = props.previewsShown();
1583     if (previewsShown != m_view->previewsShown()) {
1584         const int oldZoomLevel = zoomLevel();
1585
1586         m_view->setPreviewsShown(previewsShown);
1587         emit previewsShownChanged(previewsShown);
1588
1589         // Changing the preview-state might result in a changed zoom-level
1590         if (oldZoomLevel != zoomLevel()) {
1591             emit zoomLevelChanged(zoomLevel(), oldZoomLevel);
1592         }
1593     }
1594
1595     KItemListView* itemListView = m_container->controller()->view();
1596     if (itemListView->isHeaderVisible()) {
1597         KItemListHeader* header = itemListView->header();
1598         const QList<int> headerColumnWidths = props.headerColumnWidths();
1599         const int rolesCount = m_visibleRoles.count();
1600         if (headerColumnWidths.count() == rolesCount) {
1601             header->setAutomaticColumnResizing(false);
1602
1603             QHash<QByteArray, qreal> columnWidths;
1604             for (int i = 0; i < rolesCount; ++i) {
1605                 columnWidths.insert(m_visibleRoles[i], headerColumnWidths[i]);
1606             }
1607             header->setColumnWidths(columnWidths);
1608         } else {
1609             header->setAutomaticColumnResizing(true);
1610         }
1611     }
1612
1613     m_view->endTransaction();
1614 }
1615
1616 void DolphinView::applyModeToView()
1617 {
1618     switch (m_mode) {
1619     case IconsView:   m_view->setItemLayout(KFileItemListView::IconsLayout); break;
1620     case CompactView: m_view->setItemLayout(KFileItemListView::CompactLayout); break;
1621     case DetailsView: m_view->setItemLayout(KFileItemListView::DetailsLayout); break;
1622     default: Q_ASSERT(false); break;
1623     }
1624 }
1625
1626 void DolphinView::pasteToUrl(const KUrl& url)
1627 {
1628     KonqOperations* op = KonqOperations::doPasteV2(this, url);
1629     if (op) {
1630         m_clearSelectionBeforeSelectingNewItems = true;
1631         m_markFirstNewlySelectedItemAsCurrent = true;
1632         connect(op, SIGNAL(aboutToCreate(KUrl::List)), this, SLOT(slotAboutToCreate(KUrl::List)));
1633     }
1634 }
1635
1636 KUrl::List DolphinView::simplifiedSelectedUrls() const
1637 {
1638     KUrl::List urls;
1639
1640     const KFileItemList items = selectedItems();
1641     foreach (const KFileItem& item, items) {
1642         urls.append(item.url());
1643     }
1644
1645     if (itemsExpandable()) {
1646         // TODO: Check if we still need KDirModel for this in KDE 5.0
1647         urls = KDirModel::simplifiedUrlList(urls);
1648     }
1649
1650     return urls;
1651 }
1652
1653 QMimeData* DolphinView::selectionMimeData() const
1654 {
1655     const KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
1656     const KItemSet selectedIndexes = selectionManager->selectedItems();
1657
1658     return m_model->createMimeData(selectedIndexes);
1659 }
1660
1661 void DolphinView::updateWritableState()
1662 {
1663     const bool wasFolderWritable = m_isFolderWritable;
1664     m_isFolderWritable = false;
1665
1666     KFileItem item = m_model->rootItem();
1667     if (item.isNull()) {
1668         // Try to find out if the URL is writable even if the "root item" is
1669         // null, see https://bugs.kde.org/show_bug.cgi?id=330001
1670         item = KFileItem(KFileItem::Unknown, KFileItem::Unknown, url(), true);
1671     }
1672
1673     KFileItemListProperties capabilities(KFileItemList() << item);
1674     m_isFolderWritable = capabilities.supportsWriting();
1675
1676     if (m_isFolderWritable != wasFolderWritable) {
1677         emit writeStateChanged(m_isFolderWritable);
1678     }
1679 }
1680
1681 KUrl DolphinView::viewPropertiesUrl() const
1682 {
1683     if (m_viewPropertiesContext.isEmpty()) {
1684         return m_url;
1685     }
1686
1687     KUrl url;
1688     url.setProtocol(m_url.protocol());
1689     url.setPath(m_viewPropertiesContext);
1690     return url;
1691 }
1692
1693 #include "dolphinview.moc"