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 <QClipboard>
  28 #include <QDropEvent>
  29 #include <QGraphicsSceneDragDropEvent>
  30 #include <QTimer>
  31 #include <QScrollBar>
  32 #include <QPixmapCache>
  33 #include <QPointer>
  34 #include <QMenu>
  35 #include <QVBoxLayout>
  36 #include <KDesktopFile>
  37 #include <KProtocolManager>
  38 #include <KColorScheme>
  39 #include <KDirModel>
  40 #include <KFileItem>
  41 #include <KFileItemListProperties>
  42 #include <KLocalizedString>
  43 #include <kitemviews/kfileitemmodel.h>
  44 #include <kitemviews/kfileitemlistview.h>
  45 #include <kitemviews/kitemlistcontainer.h>
  46 #include <kitemviews/kitemlistheader.h>
  47 #include <kitemviews/kitemlistselectionmanager.h>
  48 #include <kitemviews/kitemlistview.h>
  49 #include <kitemviews/kitemlistcontroller.h>
  50 #include <KIO/CopyJob>
  51 #include <KIO/DeleteJob>
  52 #include <KIO/JobUiDelegate>
  53 #include <KIO/PreviewJob>
  54 #include <KIO/DropJob>
  55 #include <KIO/PasteJob>
  56 #include <KIO/Paste>
  57 #include <KJob>
  58 #include <KMessageBox>
  59 #include <KJobWidgets>
  60 #include <QUrl>
  61
  62 #include "dolphinnewfilemenuobserver.h"
  63 #include "dolphin_detailsmodesettings.h"
  64 #include "dolphin_generalsettings.h"
  65 #include "dolphinitemlistview.h"
  66 #include "draganddrophelper.h"
  67 #include "renamedialog.h"
  68 #include "versioncontrol/versioncontrolobserver.h"
  69 #include "viewmodecontroller.h"
  70 #include "viewproperties.h"
  71 #include "views/tooltips/tooltipmanager.h"
  72 #include "zoomlevelinfo.h"
  73
  74 #ifdef HAVE_BALOO
  75     #include <Baloo/IndexerConfig>
  76 #endif
  77 #include <KFormat>
  78
  79 DolphinView::DolphinView(const QUrl& url, QWidget* parent) :
  80     QWidget(parent),
  81     m_active(true),
  82     m_tabsForFiles(false),
  83     m_assureVisibleCurrentIndex(false),
  84     m_isFolderWritable(true),
  85     m_dragging(false),
  86     m_url(url),
  87     m_viewPropertiesContext(),
  88     m_mode(DolphinView::IconsView),
  89     m_visibleRoles(),
  90     m_topLayout(0),
  91     m_model(0),
  92     m_view(0),
  93     m_container(0),
  94     m_toolTipManager(0),
  95     m_selectionChangedTimer(0),
  96     m_currentItemUrl(),
  97     m_scrollToCurrentItem(false),
  98     m_restoredContentsPosition(),
  99     m_selectedUrls(),
 100     m_clearSelectionBeforeSelectingNewItems(false),
 101     m_markFirstNewlySelectedItemAsCurrent(false),
 102     m_versionControlObserver(0)
 103 {
 104     m_topLayout = new QVBoxLayout(this);
 105     m_topLayout->setSpacing(0);
 106     m_topLayout->setMargin(0);
 107
 108     // When a new item has been created by the "Create New..." menu, the item should
 109     // get selected and it must be assured that the item will get visible. As the
 110     // creation is done asynchronously, several signals must be checked:
 111     connect(&DolphinNewFileMenuObserver::instance(), &DolphinNewFileMenuObserver::itemCreated,
 112             this, &DolphinView::observeCreatedItem);
 113
 114     m_selectionChangedTimer = new QTimer(this);
 115     m_selectionChangedTimer->setSingleShot(true);
 116     m_selectionChangedTimer->setInterval(300);
 117     connect(m_selectionChangedTimer, &QTimer::timeout,
 118             this, &DolphinView::emitSelectionChangedSignal);
 119
 120     m_model = new KFileItemModel(this);
 121     m_view = new DolphinItemListView();
 122     m_view->setEnabledSelectionToggles(GeneralSettings::showSelectionToggle());
 123     m_view->setVisibleRoles({"text"});
 124     applyModeToView();
 125
 126     KItemListController* controller = new KItemListController(m_model, m_view, this);
 127     const int delay = GeneralSettings::autoExpandFolders() ? 750 : -1;
 128     controller->setAutoActivationDelay(delay);
 129
 130     // The EnlargeSmallPreviews setting can only be changed after the model
 131     // has been set in the view by KItemListController.
 132     m_view->setEnlargeSmallPreviews(GeneralSettings::enlargeSmallPreviews());
 133
 134     m_container = new KItemListContainer(controller, this);
 135     m_container->installEventFilter(this);
 136     setFocusProxy(m_container);
 137     connect(m_container->horizontalScrollBar(), &QScrollBar::valueChanged, this, &DolphinView::hideToolTip);
 138     connect(m_container->verticalScrollBar(), &QScrollBar::valueChanged, this, &DolphinView::hideToolTip);
 139
 140     controller->setSelectionBehavior(KItemListController::MultiSelection);
 141     connect(controller, &KItemListController::itemActivated, this, &DolphinView::slotItemActivated);
 142     connect(controller, &KItemListController::itemsActivated, this, &DolphinView::slotItemsActivated);
 143     connect(controller, &KItemListController::itemMiddleClicked, this, &DolphinView::slotItemMiddleClicked);
 144     connect(controller, &KItemListController::itemContextMenuRequested, this, &DolphinView::slotItemContextMenuRequested);
 145     connect(controller, &KItemListController::viewContextMenuRequested, this, &DolphinView::slotViewContextMenuRequested);
 146     connect(controller, &KItemListController::headerContextMenuRequested, this, &DolphinView::slotHeaderContextMenuRequested);
 147     connect(controller, &KItemListController::mouseButtonPressed, this, &DolphinView::slotMouseButtonPressed);
 148     connect(controller, &KItemListController::itemHovered, this, &DolphinView::slotItemHovered);
 149     connect(controller, &KItemListController::itemUnhovered, this, &DolphinView::slotItemUnhovered);
 150     connect(controller, &KItemListController::itemDropEvent, this, &DolphinView::slotItemDropEvent);
 151     connect(controller, &KItemListController::escapePressed, this, &DolphinView::stopLoading);
 152     connect(controller, &KItemListController::modelChanged, this, &DolphinView::slotModelChanged);
 153
 154     connect(m_model, &KFileItemModel::directoryLoadingStarted,       this, &DolphinView::slotDirectoryLoadingStarted);
 155     connect(m_model, &KFileItemModel::directoryLoadingCompleted,     this, &DolphinView::slotDirectoryLoadingCompleted);
 156     connect(m_model, &KFileItemModel::directoryLoadingCanceled,      this, &DolphinView::directoryLoadingCanceled);
 157     connect(m_model, &KFileItemModel::directoryLoadingProgress,   this, &DolphinView::directoryLoadingProgress);
 158     connect(m_model, &KFileItemModel::directorySortingProgress,   this, &DolphinView::directorySortingProgress);
 159     connect(m_model, &KFileItemModel::itemsChanged,
 160             this, &DolphinView::slotItemsChanged);
 161     connect(m_model, &KFileItemModel::itemsRemoved,    this, &DolphinView::itemCountChanged);
 162     connect(m_model, &KFileItemModel::itemsInserted,   this, &DolphinView::itemCountChanged);
 163     connect(m_model, &KFileItemModel::infoMessage,            this, &DolphinView::infoMessage);
 164     connect(m_model, &KFileItemModel::errorMessage,           this, &DolphinView::errorMessage);
 165     connect(m_model, &KFileItemModel::directoryRedirection, this, &DolphinView::slotDirectoryRedirection);
 166     connect(m_model, &KFileItemModel::urlIsFileError,            this, &DolphinView::urlIsFileError);
 167
 168     m_view->installEventFilter(this);
 169     connect(m_view, &DolphinItemListView::sortOrderChanged,
 170             this, &DolphinView::slotSortOrderChangedByHeader);
 171     connect(m_view, &DolphinItemListView::sortRoleChanged,
 172             this, &DolphinView::slotSortRoleChangedByHeader);
 173     connect(m_view, &DolphinItemListView::visibleRolesChanged,
 174             this, &DolphinView::slotVisibleRolesChangedByHeader);
 175     connect(m_view, &DolphinItemListView::roleEditingCanceled,
 176             this, &DolphinView::slotRoleEditingCanceled);
 177     connect(m_view->header(), &KItemListHeader::columnWidthChangeFinished,
 178             this, &DolphinView::slotHeaderColumnWidthChangeFinished);
 179
 180     KItemListSelectionManager* selectionManager = controller->selectionManager();
 181     connect(selectionManager, &KItemListSelectionManager::selectionChanged,
 182             this, &DolphinView::slotSelectionChanged);
 183
 184     m_toolTipManager = new ToolTipManager(this);
 185     connect(m_toolTipManager, &ToolTipManager::urlActivated, this, &DolphinView::urlActivated);
 186
 187     m_versionControlObserver = new VersionControlObserver(this);
 188     m_versionControlObserver->setModel(m_model);
 189     connect(m_versionControlObserver, &VersionControlObserver::infoMessage, this, &DolphinView::infoMessage);
 190     connect(m_versionControlObserver, &VersionControlObserver::errorMessage, this, &DolphinView::errorMessage);
 191     connect(m_versionControlObserver, &VersionControlObserver::operationCompletedMessage, this, &DolphinView::operationCompletedMessage);
 192
 193     applyViewProperties();
 194     m_topLayout->addWidget(m_container);
 195
 196     loadDirectory(url);
 197 }
 198
 199 DolphinView::~DolphinView()
 200 {
 201 }
 202
 203 QUrl DolphinView::url() const
 204 {
 205     return m_url;
 206 }
 207
 208 void DolphinView::setActive(bool active)
 209 {
 210     if (active == m_active) {
 211         return;
 212     }
 213
 214     m_active = active;
 215
 216     updatePalette();
 217
 218     if (active) {
 219         m_container->setFocus();
 220         emit activated();
 221         emit writeStateChanged(m_isFolderWritable);
 222     }
 223 }
 224
 225 bool DolphinView::isActive() const
 226 {
 227     return m_active;
 228 }
 229
 230 void DolphinView::setMode(Mode mode)
 231 {
 232     if (mode != m_mode) {
 233         ViewProperties props(viewPropertiesUrl());
 234         props.setViewMode(mode);
 235
 236         // We pass the new ViewProperties to applyViewProperties, rather than
 237         // storing them on disk and letting applyViewProperties() read them
 238         // from there, to prevent that changing the view mode fails if the
 239         // .directory file is not writable (see bug 318534).
 240         applyViewProperties(props);
 241     }
 242 }
 243
 244 DolphinView::Mode DolphinView::mode() const
 245 {
 246     return m_mode;
 247 }
 248
 249 void DolphinView::setPreviewsShown(bool show)
 250 {
 251     if (previewsShown() == show) {
 252         return;
 253     }
 254
 255     ViewProperties props(viewPropertiesUrl());
 256     props.setPreviewsShown(show);
 257
 258     const int oldZoomLevel = m_view->zoomLevel();
 259     m_view->setPreviewsShown(show);
 260     emit previewsShownChanged(show);
 261
 262     const int newZoomLevel = m_view->zoomLevel();
 263     if (newZoomLevel != oldZoomLevel) {
 264         emit zoomLevelChanged(newZoomLevel, oldZoomLevel);
 265     }
 266 }
 267
 268 bool DolphinView::previewsShown() const
 269 {
 270     return m_view->previewsShown();
 271 }
 272
 273 void DolphinView::setHiddenFilesShown(bool show)
 274 {
 275     if (m_model->showHiddenFiles() == show) {
 276         return;
 277     }
 278
 279     const KFileItemList itemList = selectedItems();
 280     m_selectedUrls.clear();
 281     m_selectedUrls = itemList.urlList();
 282
 283     ViewProperties props(viewPropertiesUrl());
 284     props.setHiddenFilesShown(show);
 285
 286     m_model->setShowHiddenFiles(show);
 287     emit hiddenFilesShownChanged(show);
 288 }
 289
 290 bool DolphinView::hiddenFilesShown() const
 291 {
 292     return m_model->showHiddenFiles();
 293 }
 294
 295 void DolphinView::setGroupedSorting(bool grouped)
 296 {
 297     if (grouped == groupedSorting()) {
 298         return;
 299     }
 300
 301     ViewProperties props(viewPropertiesUrl());
 302     props.setGroupedSorting(grouped);
 303     props.save();
 304
 305     m_container->controller()->model()->setGroupedSorting(grouped);
 306
 307     emit groupedSortingChanged(grouped);
 308 }
 309
 310 bool DolphinView::groupedSorting() const
 311 {
 312     return m_model->groupedSorting();
 313 }
 314
 315 KFileItemList DolphinView::items() const
 316 {
 317     KFileItemList list;
 318     const int itemCount = m_model->count();
 319     list.reserve(itemCount);
 320
 321     for (int i = 0; i < itemCount; ++i) {
 322         list.append(m_model->fileItem(i));
 323     }
 324
 325     return list;
 326 }
 327
 328 int DolphinView::itemsCount() const
 329 {
 330     return m_model->count();
 331 }
 332
 333 KFileItemList DolphinView::selectedItems() const
 334 {
 335     const KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 336
 337     KFileItemList selectedItems;
 338     const auto items = selectionManager->selectedItems();
 339     selectedItems.reserve(items.count());
 340     for (int index : items) {
 341         selectedItems.append(m_model->fileItem(index));
 342     }
 343     return selectedItems;
 344 }
 345
 346 int DolphinView::selectedItemsCount() const
 347 {
 348     const KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 349     return selectionManager->selectedItems().count();
 350 }
 351
 352 void DolphinView::markUrlsAsSelected(const QList<QUrl>& urls)
 353 {
 354     m_selectedUrls = urls;
 355 }
 356
 357 void DolphinView::markUrlAsCurrent(const QUrl &url)
 358 {
 359     m_currentItemUrl = url;
 360     m_scrollToCurrentItem = true;
 361 }
 362
 363 void DolphinView::selectItems(const QRegExp& pattern, bool enabled)
 364 {
 365     const KItemListSelectionManager::SelectionMode mode = enabled
 366                                                         ? KItemListSelectionManager::Select
 367                                                         : KItemListSelectionManager::Deselect;
 368     KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 369
 370     for (int index = 0; index < m_model->count(); index++) {
 371         const KFileItem item = m_model->fileItem(index);
 372         if (pattern.exactMatch(item.text())) {
 373             // An alternative approach would be to store the matching items in a KItemSet and
 374             // select them in one go after the loop, but we'd need a new function
 375             // KItemListSelectionManager::setSelected(KItemSet, SelectionMode mode)
 376             // for that.
 377             selectionManager->setSelected(index, 1, mode);
 378         }
 379     }
 380 }
 381
 382 void DolphinView::setZoomLevel(int level)
 383 {
 384     const int oldZoomLevel = zoomLevel();
 385     m_view->setZoomLevel(level);
 386     if (zoomLevel() != oldZoomLevel) {
 387         hideToolTip();
 388         emit zoomLevelChanged(zoomLevel(), oldZoomLevel);
 389     }
 390 }
 391
 392 int DolphinView::zoomLevel() const
 393 {
 394     return m_view->zoomLevel();
 395 }
 396
 397 void DolphinView::setSortRole(const QByteArray& role)
 398 {
 399     if (role != sortRole()) {
 400         updateSortRole(role);
 401     }
 402 }
 403
 404 QByteArray DolphinView::sortRole() const
 405 {
 406     const KItemModelBase* model = m_container->controller()->model();
 407     return model->sortRole();
 408 }
 409
 410 void DolphinView::setSortOrder(Qt::SortOrder order)
 411 {
 412     if (sortOrder() != order) {
 413         updateSortOrder(order);
 414     }
 415 }
 416
 417 Qt::SortOrder DolphinView::sortOrder() const
 418 {
 419     return m_model->sortOrder();
 420 }
 421
 422 void DolphinView::setSortFoldersFirst(bool foldersFirst)
 423 {
 424     if (sortFoldersFirst() != foldersFirst) {
 425         updateSortFoldersFirst(foldersFirst);
 426     }
 427 }
 428
 429 bool DolphinView::sortFoldersFirst() const
 430 {
 431     return m_model->sortDirectoriesFirst();
 432 }
 433
 434 void DolphinView::setVisibleRoles(const QList<QByteArray>& roles)
 435 {
 436     const QList<QByteArray> previousRoles = roles;
 437
 438     ViewProperties props(viewPropertiesUrl());
 439     props.setVisibleRoles(roles);
 440
 441     m_visibleRoles = roles;
 442     m_view->setVisibleRoles(roles);
 443
 444     emit visibleRolesChanged(m_visibleRoles, previousRoles);
 445 }
 446
 447 QList<QByteArray> DolphinView::visibleRoles() const
 448 {
 449     return m_visibleRoles;
 450 }
 451
 452 void DolphinView::reload()
 453 {
 454     QByteArray viewState;
 455     QDataStream saveStream(&viewState, QIODevice::WriteOnly);
 456     saveState(saveStream);
 457
 458     setUrl(url());
 459     loadDirectory(url(), true);
 460
 461     QDataStream restoreStream(viewState);
 462     restoreState(restoreStream);
 463 }
 464
 465 void DolphinView::readSettings()
 466 {
 467     const int oldZoomLevel = m_view->zoomLevel();
 468
 469     GeneralSettings::self()->load();
 470     m_view->readSettings();
 471     applyViewProperties();
 472
 473     const int delay = GeneralSettings::autoExpandFolders() ? 750 : -1;
 474     m_container->controller()->setAutoActivationDelay(delay);
 475
 476     const int newZoomLevel = m_view->zoomLevel();
 477     if (newZoomLevel != oldZoomLevel) {
 478         emit zoomLevelChanged(newZoomLevel, oldZoomLevel);
 479     }
 480 }
 481
 482 void DolphinView::writeSettings()
 483 {
 484     GeneralSettings::self()->save();
 485     m_view->writeSettings();
 486 }
 487
 488 void DolphinView::setNameFilter(const QString& nameFilter)
 489 {
 490     m_model->setNameFilter(nameFilter);
 491 }
 492
 493 QString DolphinView::nameFilter() const
 494 {
 495     return m_model->nameFilter();
 496 }
 497
 498 void DolphinView::setMimeTypeFilters(const QStringList& filters)
 499 {
 500     return m_model->setMimeTypeFilters(filters);
 501 }
 502
 503 QStringList DolphinView::mimeTypeFilters() const
 504 {
 505     return m_model->mimeTypeFilters();
 506 }
 507
 508 QString DolphinView::statusBarText() const
 509 {
 510     QString summary;
 511     QString foldersText;
 512     QString filesText;
 513
 514     int folderCount = 0;
 515     int fileCount = 0;
 516     KIO::filesize_t totalFileSize = 0;
 517
 518     if (m_container->controller()->selectionManager()->hasSelection()) {
 519         // Give a summary of the status of the selected files
 520         const KFileItemList list = selectedItems();
 521         foreach (const KFileItem& item, list) {
 522             if (item.isDir()) {
 523                 ++folderCount;
 524             } else {
 525                 ++fileCount;
 526                 totalFileSize += item.size();
 527             }
 528         }
 529
 530         if (folderCount + fileCount == 1) {
 531             // If only one item is selected, show info about it
 532             return list.first().getStatusBarInfo();
 533         } else {
 534             // At least 2 items are selected
 535             foldersText = i18ncp("@info:status", "1 Folder selected", "%1 Folders selected", folderCount);
 536             filesText = i18ncp("@info:status", "1 File selected", "%1 Files selected", fileCount);
 537         }
 538     } else {
 539         calculateItemCount(fileCount, folderCount, totalFileSize);
 540         foldersText = i18ncp("@info:status", "1 Folder", "%1 Folders", folderCount);
 541         filesText = i18ncp("@info:status", "1 File", "%1 Files", fileCount);
 542     }
 543
 544     if (fileCount > 0 && folderCount > 0) {
 545         summary = i18nc("@info:status folders, files (size)", "%1, %2 (%3)",
 546                         foldersText, filesText,
 547                         KFormat().formatByteSize(totalFileSize));
 548     } else if (fileCount > 0) {
 549         summary = i18nc("@info:status files (size)", "%1 (%2)",
 550                         filesText,
 551                         KFormat().formatByteSize(totalFileSize));
 552     } else if (folderCount > 0) {
 553         summary = foldersText;
 554     } else {
 555         summary = i18nc("@info:status", "0 Folders, 0 Files");
 556     }
 557
 558     return summary;
 559 }
 560
 561 QList<QAction*> DolphinView::versionControlActions(const KFileItemList& items) const
 562 {
 563     QList<QAction*> actions;
 564
 565     if (items.isEmpty()) {
 566         const KFileItem item = m_model->rootItem();
 567         if (!item.isNull()) {
 568             actions = m_versionControlObserver->actions(KFileItemList() << item);
 569         }
 570     } else {
 571         actions = m_versionControlObserver->actions(items);
 572     }
 573
 574     return actions;
 575 }
 576
 577 void DolphinView::setUrl(const QUrl& url)
 578 {
 579     if (url == m_url) {
 580         return;
 581     }
 582
 583     clearSelection();
 584
 585     m_url = url;
 586
 587     hideToolTip();
 588
 589     disconnect(m_view, &DolphinItemListView::roleEditingFinished,
 590                this, &DolphinView::slotRoleEditingFinished);
 591
 592     // It is important to clear the items from the model before
 593     // applying the view properties, otherwise expensive operations
 594     // might be done on the existing items although they get cleared
 595     // anyhow afterwards by loadDirectory().
 596     m_model->clear();
 597     applyViewProperties();
 598     loadDirectory(url);
 599
 600     emit urlChanged(url);
 601 }
 602
 603 void DolphinView::selectAll()
 604 {
 605     KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 606     selectionManager->setSelected(0, m_model->count());
 607 }
 608
 609 void DolphinView::invertSelection()
 610 {
 611     KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 612     selectionManager->setSelected(0, m_model->count(), KItemListSelectionManager::Toggle);
 613 }
 614
 615 void DolphinView::clearSelection()
 616 {
 617     m_selectedUrls.clear();
 618     m_container->controller()->selectionManager()->clearSelection();
 619 }
 620
 621 void DolphinView::renameSelectedItems()
 622 {
 623     const KFileItemList items = selectedItems();
 624     if (items.isEmpty()) {
 625         return;
 626     }
 627
 628     if (items.count() == 1 && GeneralSettings::renameInline()) {
 629         const int index = m_model->index(items.first());
 630         m_view->editRole(index, "text");
 631
 632         hideToolTip();
 633
 634         connect(m_view, &DolphinItemListView::roleEditingFinished,
 635                 this, &DolphinView::slotRoleEditingFinished);
 636     } else {
 637         RenameDialog* dialog = new RenameDialog(this, items);
 638         dialog->setAttribute(Qt::WA_DeleteOnClose);
 639         dialog->show();
 640         dialog->raise();
 641         dialog->activateWindow();
 642     }
 643
 644     // Assure that the current index remains visible when KFileItemModel
 645     // will notify the view about changed items (which might result in
 646     // a changed sorting).
 647     m_assureVisibleCurrentIndex = true;
 648 }
 649
 650 void DolphinView::trashSelectedItems()
 651 {
 652     const QList<QUrl> list = simplifiedSelectedUrls();
 653     KIO::JobUiDelegate uiDelegate;
 654     uiDelegate.setWindow(window());
 655     if (uiDelegate.askDeleteConfirmation(list, KIO::JobUiDelegate::Trash, KIO::JobUiDelegate::DefaultConfirmation)) {
 656         KIO::Job* job = KIO::trash(list);
 657         KIO::FileUndoManager::self()->recordJob(KIO::FileUndoManager::Trash, list, QUrl(QStringLiteral("trash:/")), job);
 658         KJobWidgets::setWindow(job, this);
 659         connect(job, &KIO::Job::result,
 660                 this, &DolphinView::slotTrashFileFinished);
 661     }
 662 }
 663
 664 void DolphinView::deleteSelectedItems()
 665 {
 666     const QList<QUrl> list = simplifiedSelectedUrls();
 667
 668     KIO::JobUiDelegate uiDelegate;
 669     uiDelegate.setWindow(window());
 670     if (uiDelegate.askDeleteConfirmation(list, KIO::JobUiDelegate::Delete, KIO::JobUiDelegate::DefaultConfirmation)) {
 671         KIO::Job* job = KIO::del(list);
 672         KJobWidgets::setWindow(job, this);
 673         connect(job, &KIO::Job::result,
 674                 this, &DolphinView::slotDeleteFileFinished);
 675     }
 676 }
 677
 678 void DolphinView::cutSelectedItems()
 679 {
 680     QMimeData* mimeData = selectionMimeData();
 681     KIO::setClipboardDataCut(mimeData, true);
 682     QApplication::clipboard()->setMimeData(mimeData);
 683 }
 684
 685 void DolphinView::copySelectedItems()
 686 {
 687     QMimeData* mimeData = selectionMimeData();
 688     QApplication::clipboard()->setMimeData(mimeData);
 689 }
 690
 691 void DolphinView::paste()
 692 {
 693     pasteToUrl(url());
 694 }
 695
 696 void DolphinView::pasteIntoFolder()
 697 {
 698     const KFileItemList items = selectedItems();
 699     if ((items.count() == 1) && items.first().isDir()) {
 700         pasteToUrl(items.first().url());
 701     }
 702 }
 703
 704 void DolphinView::stopLoading()
 705 {
 706     m_model->cancelDirectoryLoading();
 707 }
 708
 709 void DolphinView::updatePalette()
 710 {
 711     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 712     if (!m_active) {
 713         color.setAlpha(150);
 714     }
 715
 716     QWidget* viewport = m_container->viewport();
 717     if (viewport) {
 718         QPalette palette;
 719         palette.setColor(viewport->backgroundRole(), color);
 720         viewport->setPalette(palette);
 721     }
 722
 723     update();
 724 }
 725
 726 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 727 {
 728     switch (event->type()) {
 729     case QEvent::PaletteChange:
 730         updatePalette();
 731         QPixmapCache::clear();
 732         break;
 733
 734     case QEvent::KeyPress:
 735         if (GeneralSettings::useTabForSwitchingSplitView()) {
 736             QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
 737             if (keyEvent->key() == Qt::Key_Tab && keyEvent->modifiers() == Qt::NoModifier) {
 738                 toggleActiveViewRequested();
 739                 return true;
 740             }
 741         }
 742         break;
 743     case QEvent::FocusIn:
 744         if (watched == m_container) {
 745             setActive(true);
 746         }
 747         break;
 748
 749     case QEvent::GraphicsSceneDragEnter:
 750         if (watched == m_view) {
 751             m_dragging = true;
 752         }
 753         break;
 754
 755     case QEvent::GraphicsSceneDragLeave:
 756         if (watched == m_view) {
 757             m_dragging = false;
 758         }
 759         break;
 760
 761     case QEvent::GraphicsSceneDrop:
 762         if (watched == m_view) {
 763             m_dragging = false;
 764         }
 765     default:
 766         break;
 767     }
 768
 769     return QWidget::eventFilter(watched, event);
 770 }
 771
 772 void DolphinView::wheelEvent(QWheelEvent* event)
 773 {
 774     if (event->modifiers().testFlag(Qt::ControlModifier)) {
 775         const int numDegrees = event->delta() / 8;
 776         const int numSteps = numDegrees / 15;
 777
 778         setZoomLevel(zoomLevel() + numSteps);
 779         event->accept();
 780     } else {
 781         event->ignore();
 782     }
 783 }
 784
 785 void DolphinView::hideEvent(QHideEvent* event)
 786 {
 787     hideToolTip();
 788     QWidget::hideEvent(event);
 789 }
 790
 791 bool DolphinView::event(QEvent* event)
 792 {
 793     /* See Bug 297355
 794      * Dolphin leaves file preview tooltips open even when is not visible.
 795      *
 796      * Hide tool-tip when Dolphin loses focus.
 797      */
 798     if (event->type() == QEvent::WindowDeactivate) {
 799         hideToolTip();
 800     }
 801
 802     return QWidget::event(event);
 803 }
 804
 805 void DolphinView::activate()
 806 {
 807     setActive(true);
 808 }
 809
 810 void DolphinView::slotItemActivated(int index)
 811 {
 812     const KFileItem item = m_model->fileItem(index);
 813     if (!item.isNull()) {
 814         emit itemActivated(item);
 815     }
 816 }
 817
 818 void DolphinView::slotItemsActivated(const KItemSet& indexes)
 819 {
 820     Q_ASSERT(indexes.count() >= 2);
 821
 822     if (indexes.count() > 5) {
 823         QString question = i18np("Are you sure you want to open 1 item?", "Are you sure you want to open %1 items?", indexes.count());
 824         const int answer = KMessageBox::warningYesNo(this, question);
 825         if (answer != KMessageBox::Yes) {
 826             return;
 827         }
 828     }
 829
 830     KFileItemList items;
 831     items.reserve(indexes.count());
 832
 833     for (int index : indexes) {
 834         KFileItem item = m_model->fileItem(index);
 835         const QUrl& url = openItemAsFolderUrl(item);
 836
 837         if (!url.isEmpty()) { // Open folders in new tabs
 838             emit tabRequested(url);
 839         } else {
 840             items.append(item);
 841         }
 842     }
 843
 844     if (items.count() == 1) {
 845         emit itemActivated(items.first());
 846     } else if (items.count() > 1) {
 847         emit itemsActivated(items);
 848     }
 849 }
 850
 851 void DolphinView::slotItemMiddleClicked(int index)
 852 {
 853     const KFileItem& item = m_model->fileItem(index);
 854     const QUrl& url = openItemAsFolderUrl(item);
 855     if (!url.isEmpty()) {
 856         emit tabRequested(url);
 857     } else if (isTabsForFilesEnabled()) {
 858         emit tabRequested(item.url());
 859     }
 860 }
 861
 862 void DolphinView::slotItemContextMenuRequested(int index, const QPointF& pos)
 863 {
 864     // Force emit of a selection changed signal before we request the
 865     // context menu, to update the edit-actions first. (See Bug 294013)
 866     if (m_selectionChangedTimer->isActive()) {
 867         emitSelectionChangedSignal();
 868     }
 869
 870     const KFileItem item = m_model->fileItem(index);
 871     emit requestContextMenu(pos.toPoint(), item, url(), QList<QAction*>());
 872 }
 873
 874 void DolphinView::slotViewContextMenuRequested(const QPointF& pos)
 875 {
 876     emit requestContextMenu(pos.toPoint(), KFileItem(), url(), QList<QAction*>());
 877 }
 878
 879 void DolphinView::slotHeaderContextMenuRequested(const QPointF& pos)
 880 {
 881     ViewProperties props(viewPropertiesUrl());
 882
 883     QPointer<QMenu> menu = new QMenu(QApplication::activeWindow());
 884
 885     KItemListView* view = m_container->controller()->view();
 886     const QSet<QByteArray> visibleRolesSet = view->visibleRoles().toSet();
 887
 888     bool indexingEnabled = false;
 889 #ifdef HAVE_BALOO
 890     Baloo::IndexerConfig config;
 891     indexingEnabled = config.fileIndexingEnabled();
 892 #endif
 893
 894     QString groupName;
 895     QMenu* groupMenu = 0;
 896
 897     // Add all roles to the menu that can be shown or hidden by the user
 898     const QList<KFileItemModel::RoleInfo> rolesInfo = KFileItemModel::rolesInformation();
 899     foreach (const KFileItemModel::RoleInfo& info, rolesInfo) {
 900         if (info.role == "text") {
 901             // It should not be possible to hide the "text" role
 902             continue;
 903         }
 904
 905         const QString text = m_model->roleDescription(info.role);
 906         QAction* action = 0;
 907         if (info.group.isEmpty()) {
 908             action = menu->addAction(text);
 909         } else {
 910             if (!groupMenu || info.group != groupName) {
 911                 groupName = info.group;
 912                 groupMenu = menu->addMenu(groupName);
 913             }
 914
 915             action = groupMenu->addAction(text);
 916         }
 917
 918         action->setCheckable(true);
 919         action->setChecked(visibleRolesSet.contains(info.role));
 920         action->setData(info.role);
 921
 922         const bool enable = (!info.requiresBaloo && !info.requiresIndexer) ||
 923                             (info.requiresBaloo) ||
 924                             (info.requiresIndexer && indexingEnabled);
 925         action->setEnabled(enable);
 926     }
 927
 928     menu->addSeparator();
 929
 930     QActionGroup* widthsGroup = new QActionGroup(menu);
 931     const bool autoColumnWidths = props.headerColumnWidths().isEmpty();
 932
 933     QAction* autoAdjustWidthsAction = menu->addAction(i18nc("@action:inmenu", "Automatic Column Widths"));
 934     autoAdjustWidthsAction->setCheckable(true);
 935     autoAdjustWidthsAction->setChecked(autoColumnWidths);
 936     autoAdjustWidthsAction->setActionGroup(widthsGroup);
 937
 938     QAction* customWidthsAction = menu->addAction(i18nc("@action:inmenu", "Custom Column Widths"));
 939     customWidthsAction->setCheckable(true);
 940     customWidthsAction->setChecked(!autoColumnWidths);
 941     customWidthsAction->setActionGroup(widthsGroup);
 942
 943     QAction* action = menu->exec(pos.toPoint());
 944     if (menu && action) {
 945         KItemListHeader* header = view->header();
 946
 947         if (action == autoAdjustWidthsAction) {
 948             // Clear the column-widths from the viewproperties and turn on
 949             // the automatic resizing of the columns
 950             props.setHeaderColumnWidths(QList<int>());
 951             header->setAutomaticColumnResizing(true);
 952         } else if (action == customWidthsAction) {
 953             // Apply the current column-widths as custom column-widths and turn
 954             // off the automatic resizing of the columns
 955             QList<int> columnWidths;
 956             columnWidths.reserve(view->visibleRoles().count());
 957             foreach (const QByteArray& role, view->visibleRoles()) {
 958                 columnWidths.append(header->columnWidth(role));
 959             }
 960             props.setHeaderColumnWidths(columnWidths);
 961             header->setAutomaticColumnResizing(false);
 962         } else {
 963             // Show or hide the selected role
 964             const QByteArray selectedRole = action->data().toByteArray();
 965
 966             QList<QByteArray> visibleRoles = view->visibleRoles();
 967             if (action->isChecked()) {
 968                 visibleRoles.append(selectedRole);
 969             } else {
 970                 visibleRoles.removeOne(selectedRole);
 971             }
 972
 973             view->setVisibleRoles(visibleRoles);
 974             props.setVisibleRoles(visibleRoles);
 975
 976             QList<int> columnWidths;
 977             if (!header->automaticColumnResizing()) {
 978                 columnWidths.reserve(view->visibleRoles().count());
 979                 foreach (const QByteArray& role, view->visibleRoles()) {
 980                     columnWidths.append(header->columnWidth(role));
 981                 }
 982             }
 983             props.setHeaderColumnWidths(columnWidths);
 984         }
 985     }
 986
 987     delete menu;
 988 }
 989
 990 void DolphinView::slotHeaderColumnWidthChangeFinished(const QByteArray& role, qreal current)
 991 {
 992     const QList<QByteArray> visibleRoles = m_view->visibleRoles();
 993
 994     ViewProperties props(viewPropertiesUrl());
 995     QList<int> columnWidths = props.headerColumnWidths();
 996     if (columnWidths.count() != visibleRoles.count()) {
 997         columnWidths.clear();
 998         columnWidths.reserve(visibleRoles.count());
 999         const KItemListHeader* header = m_view->header();
1000         foreach (const QByteArray& role, visibleRoles) {
1001             const int width = header->columnWidth(role);
1002             columnWidths.append(width);
1003         }
1004     }
1005
1006     const int roleIndex = visibleRoles.indexOf(role);
1007     Q_ASSERT(roleIndex >= 0 && roleIndex < columnWidths.count());
1008     columnWidths[roleIndex] = current;
1009
1010     props.setHeaderColumnWidths(columnWidths);
1011 }
1012
1013 void DolphinView::slotItemHovered(int index)
1014 {
1015     const KFileItem item = m_model->fileItem(index);
1016
1017     if (GeneralSettings::showToolTips() && !m_dragging) {
1018         QRectF itemRect = m_container->controller()->view()->itemContextRect(index);
1019         const QPoint pos = m_container->mapToGlobal(itemRect.topLeft().toPoint());
1020         itemRect.moveTo(pos);
1021
1022         m_toolTipManager->showToolTip(item, itemRect, nativeParentWidget()->windowHandle());
1023     }
1024
1025     emit requestItemInfo(item);
1026 }
1027
1028 void DolphinView::slotItemUnhovered(int index)
1029 {
1030     Q_UNUSED(index);
1031     hideToolTip();
1032     emit requestItemInfo(KFileItem());
1033 }
1034
1035 void DolphinView::slotItemDropEvent(int index, QGraphicsSceneDragDropEvent* event)
1036 {
1037     QUrl destUrl;
1038     KFileItem destItem = m_model->fileItem(index);
1039     if (destItem.isNull() || (!destItem.isDir() && !destItem.isDesktopFile())) {
1040         // Use the URL of the view as drop target if the item is no directory
1041         // or desktop-file
1042         destItem = m_model->rootItem();
1043         destUrl = url();
1044     } else {
1045         // The item represents a directory or desktop-file
1046         destUrl = destItem.mostLocalUrl();
1047     }
1048
1049     QDropEvent dropEvent(event->pos().toPoint(),
1050                          event->possibleActions(),
1051                          event->mimeData(),
1052                          event->buttons(),
1053                          event->modifiers());
1054     dropUrls(destUrl, &dropEvent);
1055
1056     setActive(true);
1057 }
1058
1059 void DolphinView::dropUrls(const QUrl &destUrl, QDropEvent *dropEvent)
1060 {
1061     KIO::DropJob* job = DragAndDropHelper::dropUrls(destUrl, dropEvent, this);
1062
1063     if (job) {
1064         connect(job, &KIO::DropJob::result, this, &DolphinView::slotPasteJobResult);
1065
1066         if (destUrl == url()) {
1067             // Mark the dropped urls as selected.
1068             m_clearSelectionBeforeSelectingNewItems = true;
1069             m_markFirstNewlySelectedItemAsCurrent = true;
1070             connect(job, &KIO::DropJob::itemCreated, this, &DolphinView::slotItemCreated);
1071         }
1072     }
1073 }
1074
1075 void DolphinView::slotModelChanged(KItemModelBase* current, KItemModelBase* previous)
1076 {
1077     if (previous != 0) {
1078         Q_ASSERT(qobject_cast<KFileItemModel*>(previous));
1079         KFileItemModel* fileItemModel = static_cast<KFileItemModel*>(previous);
1080         disconnect(fileItemModel, &KFileItemModel::directoryLoadingCompleted, this, &DolphinView::slotDirectoryLoadingCompleted);
1081         m_versionControlObserver->setModel(0);
1082     }
1083
1084     if (current) {
1085         Q_ASSERT(qobject_cast<KFileItemModel*>(current));
1086         KFileItemModel* fileItemModel = static_cast<KFileItemModel*>(current);
1087         connect(fileItemModel, &KFileItemModel::directoryLoadingCompleted, this, &DolphinView::slotDirectoryLoadingCompleted);
1088         m_versionControlObserver->setModel(fileItemModel);
1089     }
1090 }
1091
1092 void DolphinView::slotMouseButtonPressed(int itemIndex, Qt::MouseButtons buttons)
1093 {
1094     Q_UNUSED(itemIndex);
1095
1096     hideToolTip();
1097
1098     if (buttons & Qt::BackButton) {
1099         emit goBackRequested();
1100     } else if (buttons & Qt::ForwardButton) {
1101         emit goForwardRequested();
1102     }
1103 }
1104
1105 void DolphinView::slotItemCreated(const QUrl& url)
1106 {
1107     if (m_markFirstNewlySelectedItemAsCurrent) {
1108         markUrlAsCurrent(url);
1109         m_markFirstNewlySelectedItemAsCurrent = false;
1110     }
1111     m_selectedUrls << url;
1112 }
1113
1114 void DolphinView::slotPasteJobResult(KJob *job)
1115 {
1116     if (job->error()) {
1117         emit errorMessage(job->errorString());
1118     }
1119     if (!m_selectedUrls.isEmpty()) {
1120         m_selectedUrls << KDirModel::simplifiedUrlList(m_selectedUrls);
1121     }
1122 }
1123
1124 void DolphinView::slotSelectionChanged(const KItemSet& current, const KItemSet& previous)
1125 {
1126     const int currentCount = current.count();
1127     const int previousCount = previous.count();
1128     const bool selectionStateChanged = (currentCount == 0 && previousCount  > 0) ||
1129                                        (currentCount >  0 && previousCount == 0);
1130
1131     // If nothing has been selected before and something got selected (or if something
1132     // was selected before and now nothing is selected) the selectionChangedSignal must
1133     // be emitted asynchronously as fast as possible to update the edit-actions.
1134     m_selectionChangedTimer->setInterval(selectionStateChanged ? 0 : 300);
1135     m_selectionChangedTimer->start();
1136 }
1137
1138 void DolphinView::emitSelectionChangedSignal()
1139 {
1140     m_selectionChangedTimer->stop();
1141     emit selectionChanged(selectedItems());
1142 }
1143
1144 void DolphinView::updateSortRole(const QByteArray& role)
1145 {
1146     ViewProperties props(viewPropertiesUrl());
1147     props.setSortRole(role);
1148
1149     KItemModelBase* model = m_container->controller()->model();
1150     model->setSortRole(role);
1151
1152     emit sortRoleChanged(role);
1153 }
1154
1155 void DolphinView::updateSortOrder(Qt::SortOrder order)
1156 {
1157     ViewProperties props(viewPropertiesUrl());
1158     props.setSortOrder(order);
1159
1160     m_model->setSortOrder(order);
1161
1162     emit sortOrderChanged(order);
1163 }
1164
1165 void DolphinView::updateSortFoldersFirst(bool foldersFirst)
1166 {
1167     ViewProperties props(viewPropertiesUrl());
1168     props.setSortFoldersFirst(foldersFirst);
1169
1170     m_model->setSortDirectoriesFirst(foldersFirst);
1171
1172     emit sortFoldersFirstChanged(foldersFirst);
1173 }
1174
1175 QPair<bool, QString> DolphinView::pasteInfo() const
1176 {
1177     const QMimeData *mimeData = QApplication::clipboard()->mimeData();
1178     QPair<bool, QString> info;
1179     info.second = KIO::pasteActionText(mimeData, &info.first, rootItem());
1180     return info;
1181 }
1182
1183 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
1184 {
1185     m_tabsForFiles = tabsForFiles;
1186 }
1187
1188 bool DolphinView::isTabsForFilesEnabled() const
1189 {
1190     return m_tabsForFiles;
1191 }
1192
1193 bool DolphinView::itemsExpandable() const
1194 {
1195     return m_mode == DetailsView;
1196 }
1197
1198 void DolphinView::restoreState(QDataStream& stream)
1199 {
1200     // Read the version number of the view state and check if the version is supported.
1201     quint32 version = 0;
1202     stream >> version;
1203     if (version != 1) {
1204         // The version of the view state isn't supported, we can't restore it.
1205         return;
1206     }
1207
1208     // Restore the current item that had the keyboard focus
1209     stream >> m_currentItemUrl;
1210
1211     // Restore the previously selected items
1212     stream >> m_selectedUrls;
1213
1214     // Restore the view position
1215     stream >> m_restoredContentsPosition;
1216
1217     // Restore expanded folders (only relevant for the details view - will be ignored by the view in other view modes)
1218     QSet<QUrl> urls;
1219     stream >> urls;
1220     m_model->restoreExpandedDirectories(urls);
1221 }
1222
1223 void DolphinView::saveState(QDataStream& stream)
1224 {
1225     stream << quint32(1); // View state version
1226
1227     // Save the current item that has the keyboard focus
1228     const int currentIndex = m_container->controller()->selectionManager()->currentItem();
1229     if (currentIndex != -1) {
1230         KFileItem item = m_model->fileItem(currentIndex);
1231         Q_ASSERT(!item.isNull()); // If the current index is valid a item must exist
1232         QUrl currentItemUrl = item.url();
1233         stream << currentItemUrl;
1234     } else {
1235         stream << QUrl();
1236     }
1237
1238     // Save the selected urls
1239     stream << selectedItems().urlList();
1240
1241     // Save view position
1242     const qreal x = m_container->horizontalScrollBar()->value();
1243     const qreal y = m_container->verticalScrollBar()->value();
1244     stream << QPoint(x, y);
1245
1246     // Save expanded folders (only relevant for the details view - the set will be empty in other view modes)
1247     stream << m_model->expandedDirectories();
1248 }
1249
1250 KFileItem DolphinView::rootItem() const
1251 {
1252     return m_model->rootItem();
1253 }
1254
1255 void DolphinView::setViewPropertiesContext(const QString& context)
1256 {
1257     m_viewPropertiesContext = context;
1258 }
1259
1260 QString DolphinView::viewPropertiesContext() const
1261 {
1262     return m_viewPropertiesContext;
1263 }
1264
1265 QUrl DolphinView::openItemAsFolderUrl(const KFileItem& item, const bool browseThroughArchives)
1266 {
1267     if (item.isNull()) {
1268         return QUrl();
1269     }
1270
1271     QUrl url = item.targetUrl();
1272
1273     if (item.isDir()) {
1274         return url;
1275     }
1276
1277     if (item.isMimeTypeKnown()) {
1278         const QString& mimetype = item.mimetype();
1279
1280         if (browseThroughArchives && item.isFile() && url.isLocalFile()) {
1281             // Generic mechanism for redirecting to tar:/<path>/ when clicking on a tar file,
1282             // zip:/<path>/ when clicking on a zip file, etc.
1283             // The .protocol file specifies the mimetype that the kioslave handles.
1284             // Note that we don't use mimetype inheritance since we don't want to
1285             // open OpenDocument files as zip folders...
1286             const QString& protocol = KProtocolManager::protocolForArchiveMimetype(mimetype);
1287             if (!protocol.isEmpty()) {
1288                 url.setScheme(protocol);
1289                 return url;
1290             }
1291         }
1292
1293         if (mimetype == QLatin1String("application/x-desktop")) {
1294             // Redirect to the URL in Type=Link desktop files, unless it is a http(s) URL.
1295             KDesktopFile desktopFile(url.toLocalFile());
1296             if (desktopFile.hasLinkType()) {
1297                 const QString linkUrl = desktopFile.readUrl();
1298                 if (!linkUrl.startsWith(QLatin1String("http"))) {
1299                     return QUrl::fromUserInput(linkUrl);
1300                 }
1301             }
1302         }
1303     }
1304
1305     return QUrl();
1306 }
1307
1308 void DolphinView::observeCreatedItem(const QUrl& url)
1309 {
1310     if (m_active) {
1311         clearSelection();
1312         markUrlAsCurrent(url);
1313         markUrlsAsSelected({url});
1314     }
1315 }
1316
1317 void DolphinView::slotDirectoryRedirection(const QUrl& oldUrl, const QUrl& newUrl)
1318 {
1319     if (oldUrl.matches(url(), QUrl::StripTrailingSlash)) {
1320         emit redirection(oldUrl, newUrl);
1321         m_url = newUrl; // #186947
1322     }
1323 }
1324
1325 void DolphinView::updateViewState()
1326 {
1327     if (m_currentItemUrl != QUrl()) {
1328         KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
1329         const int currentIndex = m_model->index(m_currentItemUrl);
1330         if (currentIndex != -1) {
1331             selectionManager->setCurrentItem(currentIndex);
1332
1333             // scroll to current item and reset the state
1334             if (m_scrollToCurrentItem) {
1335                 m_view->scrollToItem(currentIndex);
1336                 m_scrollToCurrentItem = false;
1337             }
1338         } else {
1339             selectionManager->setCurrentItem(0);
1340         }
1341
1342         m_currentItemUrl = QUrl();
1343     }
1344
1345     if (!m_restoredContentsPosition.isNull()) {
1346         const int x = m_restoredContentsPosition.x();
1347         const int y = m_restoredContentsPosition.y();
1348         m_restoredContentsPosition = QPoint();
1349
1350         m_container->horizontalScrollBar()->setValue(x);
1351         m_container->verticalScrollBar()->setValue(y);
1352     }
1353
1354     if (!m_selectedUrls.isEmpty()) {
1355         KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
1356
1357         if (m_clearSelectionBeforeSelectingNewItems) {
1358             selectionManager->clearSelection();
1359             m_clearSelectionBeforeSelectingNewItems = false;
1360         }
1361
1362         KItemSet selectedItems = selectionManager->selectedItems();
1363
1364         QList<QUrl>::iterator it = m_selectedUrls.begin();
1365         while (it != m_selectedUrls.end()) {
1366             const int index = m_model->index(*it);
1367             if (index >= 0) {
1368                 selectedItems.insert(index);
1369                 it = m_selectedUrls.erase(it);
1370             } else {
1371                  ++it;
1372             }
1373         }
1374
1375         selectionManager->beginAnchoredSelection(selectionManager->currentItem());
1376         selectionManager->setSelectedItems(selectedItems);
1377     }
1378 }
1379
1380 void DolphinView::hideToolTip()
1381 {
1382     if (GeneralSettings::showToolTips()) {
1383         m_toolTipManager->hideToolTip();
1384     }
1385 }
1386
1387 void DolphinView::calculateItemCount(int& fileCount,
1388                                      int& folderCount,
1389                                      KIO::filesize_t& totalFileSize) const
1390 {
1391     const int itemCount = m_model->count();
1392     for (int i = 0; i < itemCount; ++i) {
1393         const KFileItem item = m_model->fileItem(i);
1394         if (item.isDir()) {
1395             ++folderCount;
1396         } else {
1397             ++fileCount;
1398             totalFileSize += item.size();
1399         }
1400     }
1401 }
1402
1403 void DolphinView::slotTrashFileFinished(KJob* job)
1404 {
1405     if (job->error() == 0) {
1406         emit operationCompletedMessage(i18nc("@info:status", "Trash operation completed."));
1407     } else if (job->error() != KIO::ERR_USER_CANCELED) {
1408         emit errorMessage(job->errorString());
1409     }
1410 }
1411
1412 void DolphinView::slotDeleteFileFinished(KJob* job)
1413 {
1414     if (job->error() == 0) {
1415         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1416     } else if (job->error() != KIO::ERR_USER_CANCELED) {
1417         emit errorMessage(job->errorString());
1418     }
1419 }
1420
1421 void DolphinView::slotRenamingResult(KJob* job)
1422 {
1423     if (job->error()) {
1424         KIO::CopyJob *copyJob = qobject_cast<KIO::CopyJob *>(job);
1425         Q_ASSERT(copyJob);
1426         const QUrl newUrl = copyJob->destUrl();
1427         const int index = m_model->index(newUrl);
1428         if (index >= 0) {
1429             QHash<QByteArray, QVariant> data;
1430             const QUrl oldUrl = copyJob->srcUrls().at(0);
1431             data.insert("text", oldUrl.fileName());
1432             m_model->setData(index, data);
1433         }
1434     }
1435 }
1436
1437 void DolphinView::slotDirectoryLoadingStarted()
1438 {
1439     // Disable the writestate temporary until it can be determined in a fast way
1440     // in DolphinView::slotLoadingCompleted()
1441     if (m_isFolderWritable) {
1442         m_isFolderWritable = false;
1443         emit writeStateChanged(m_isFolderWritable);
1444     }
1445
1446     emit directoryLoadingStarted();
1447 }
1448
1449 void DolphinView::slotDirectoryLoadingCompleted()
1450 {
1451     // Update the view-state. This has to be done asynchronously
1452     // because the view might not be in its final state yet.
1453     QTimer::singleShot(0, this, &DolphinView::updateViewState);
1454
1455     emit directoryLoadingCompleted();
1456
1457     updateWritableState();
1458 }
1459
1460 void DolphinView::slotItemsChanged()
1461 {
1462     m_assureVisibleCurrentIndex = false;
1463 }
1464
1465 void DolphinView::slotSortOrderChangedByHeader(Qt::SortOrder current, Qt::SortOrder previous)
1466 {
1467     Q_UNUSED(previous);
1468     Q_ASSERT(m_model->sortOrder() == current);
1469
1470     ViewProperties props(viewPropertiesUrl());
1471     props.setSortOrder(current);
1472
1473     emit sortOrderChanged(current);
1474 }
1475
1476 void DolphinView::slotSortRoleChangedByHeader(const QByteArray& current, const QByteArray& previous)
1477 {
1478     Q_UNUSED(previous);
1479     Q_ASSERT(m_model->sortRole() == current);
1480
1481     ViewProperties props(viewPropertiesUrl());
1482     props.setSortRole(current);
1483
1484     emit sortRoleChanged(current);
1485 }
1486
1487 void DolphinView::slotVisibleRolesChangedByHeader(const QList<QByteArray>& current,
1488                                                   const QList<QByteArray>& previous)
1489 {
1490     Q_UNUSED(previous);
1491     Q_ASSERT(m_container->controller()->view()->visibleRoles() == current);
1492
1493     const QList<QByteArray> previousVisibleRoles = m_visibleRoles;
1494
1495     m_visibleRoles = current;
1496
1497     ViewProperties props(viewPropertiesUrl());
1498     props.setVisibleRoles(m_visibleRoles);
1499
1500     emit visibleRolesChanged(m_visibleRoles, previousVisibleRoles);
1501 }
1502
1503 void DolphinView::slotRoleEditingCanceled()
1504 {
1505     disconnect(m_view, &DolphinItemListView::roleEditingFinished,
1506                this, &DolphinView::slotRoleEditingFinished);
1507 }
1508
1509 void DolphinView::slotRoleEditingFinished(int index, const QByteArray& role, const QVariant& value)
1510 {
1511     disconnect(m_view, &DolphinItemListView::roleEditingFinished,
1512                this, &DolphinView::slotRoleEditingFinished);
1513
1514     if (index < 0 || index >= m_model->count()) {
1515         return;
1516     }
1517
1518     if (role == "text") {
1519         const KFileItem oldItem = m_model->fileItem(index);
1520         const QString newName = value.toString();
1521         if (!newName.isEmpty() && newName != oldItem.text() && newName != QLatin1String(".") && newName != QLatin1String("..")) {
1522             const QUrl oldUrl = oldItem.url();
1523
1524             QUrl newUrl = oldUrl.adjusted(QUrl::RemoveFilename);
1525             newUrl.setPath(newUrl.path() + KIO::encodeFileName(newName));
1526
1527             const bool newNameExistsAlready = (m_model->index(newUrl) >= 0);
1528             if (!newNameExistsAlready) {
1529                 // Only change the data in the model if no item with the new name
1530                 // is in the model yet. If there is an item with the new name
1531                 // already, calling KIO::CopyJob will open a dialog
1532                 // asking for a new name, and KFileItemModel will update the
1533                 // data when the dir lister signals that the file name has changed.
1534                 QHash<QByteArray, QVariant> data;
1535                 data.insert(role, value);
1536                 m_model->setData(index, data);
1537             }
1538
1539             KIO::Job * job = KIO::moveAs(oldUrl, newUrl);
1540             KJobWidgets::setWindow(job, this);
1541             KIO::FileUndoManager::self()->recordJob(KIO::FileUndoManager::Rename, {oldUrl}, newUrl, job);
1542             job->uiDelegate()->setAutoErrorHandlingEnabled(true);
1543
1544             if (!newNameExistsAlready) {
1545                 // Only connect the result signal if there is no item with the new name
1546                 // in the model yet, see bug 328262.
1547                 connect(job, &KJob::result, this, &DolphinView::slotRenamingResult);
1548             }
1549         }
1550     }
1551 }
1552
1553 void DolphinView::loadDirectory(const QUrl& url, bool reload)
1554 {
1555     if (!url.isValid()) {
1556         const QString location(url.toDisplayString(QUrl::PreferLocalFile));
1557         if (location.isEmpty()) {
1558             emit errorMessage(i18nc("@info:status", "The location is empty."));
1559         } else {
1560             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1561         }
1562         return;
1563     }
1564
1565     if (reload) {
1566         m_model->refreshDirectory(url);
1567     } else {
1568         m_model->loadDirectory(url);
1569     }
1570 }
1571
1572 void DolphinView::applyViewProperties()
1573 {
1574     const ViewProperties props(viewPropertiesUrl());
1575     applyViewProperties(props);
1576 }
1577
1578 void DolphinView::applyViewProperties(const ViewProperties& props)
1579 {
1580     m_view->beginTransaction();
1581
1582     const Mode mode = props.viewMode();
1583     if (m_mode != mode) {
1584         const Mode previousMode = m_mode;
1585         m_mode = mode;
1586
1587         // Changing the mode might result in changing
1588         // the zoom level. Remember the old zoom level so
1589         // that zoomLevelChanged() can get emitted.
1590         const int oldZoomLevel = m_view->zoomLevel();
1591         applyModeToView();
1592
1593         emit modeChanged(m_mode, previousMode);
1594
1595         if (m_view->zoomLevel() != oldZoomLevel) {
1596             emit zoomLevelChanged(m_view->zoomLevel(), oldZoomLevel);
1597         }
1598     }
1599
1600     const bool hiddenFilesShown = props.hiddenFilesShown();
1601     if (hiddenFilesShown != m_model->showHiddenFiles()) {
1602         m_model->setShowHiddenFiles(hiddenFilesShown);
1603         emit hiddenFilesShownChanged(hiddenFilesShown);
1604     }
1605
1606     const bool groupedSorting = props.groupedSorting();
1607     if (groupedSorting != m_model->groupedSorting()) {
1608         m_model->setGroupedSorting(groupedSorting);
1609         emit groupedSortingChanged(groupedSorting);
1610     }
1611
1612     const QByteArray sortRole = props.sortRole();
1613     if (sortRole != m_model->sortRole()) {
1614         m_model->setSortRole(sortRole);
1615         emit sortRoleChanged(sortRole);
1616     }
1617
1618     const Qt::SortOrder sortOrder = props.sortOrder();
1619     if (sortOrder != m_model->sortOrder()) {
1620         m_model->setSortOrder(sortOrder);
1621         emit sortOrderChanged(sortOrder);
1622     }
1623
1624     const bool sortFoldersFirst = props.sortFoldersFirst();
1625     if (sortFoldersFirst != m_model->sortDirectoriesFirst()) {
1626         m_model->setSortDirectoriesFirst(sortFoldersFirst);
1627         emit sortFoldersFirstChanged(sortFoldersFirst);
1628     }
1629
1630     const QList<QByteArray> visibleRoles = props.visibleRoles();
1631     if (visibleRoles != m_visibleRoles) {
1632         const QList<QByteArray> previousVisibleRoles = m_visibleRoles;
1633         m_visibleRoles = visibleRoles;
1634         m_view->setVisibleRoles(visibleRoles);
1635         emit visibleRolesChanged(m_visibleRoles, previousVisibleRoles);
1636     }
1637
1638     const bool previewsShown = props.previewsShown();
1639     if (previewsShown != m_view->previewsShown()) {
1640         const int oldZoomLevel = zoomLevel();
1641
1642         m_view->setPreviewsShown(previewsShown);
1643         emit previewsShownChanged(previewsShown);
1644
1645         // Changing the preview-state might result in a changed zoom-level
1646         if (oldZoomLevel != zoomLevel()) {
1647             emit zoomLevelChanged(zoomLevel(), oldZoomLevel);
1648         }
1649     }
1650
1651     KItemListView* itemListView = m_container->controller()->view();
1652     if (itemListView->isHeaderVisible()) {
1653         KItemListHeader* header = itemListView->header();
1654         const QList<int> headerColumnWidths = props.headerColumnWidths();
1655         const int rolesCount = m_visibleRoles.count();
1656         if (headerColumnWidths.count() == rolesCount) {
1657             header->setAutomaticColumnResizing(false);
1658
1659             QHash<QByteArray, qreal> columnWidths;
1660             for (int i = 0; i < rolesCount; ++i) {
1661                 columnWidths.insert(m_visibleRoles[i], headerColumnWidths[i]);
1662             }
1663             header->setColumnWidths(columnWidths);
1664         } else {
1665             header->setAutomaticColumnResizing(true);
1666         }
1667     }
1668
1669     m_view->endTransaction();
1670 }
1671
1672 void DolphinView::applyModeToView()
1673 {
1674     switch (m_mode) {
1675     case IconsView:   m_view->setItemLayout(KFileItemListView::IconsLayout); break;
1676     case CompactView: m_view->setItemLayout(KFileItemListView::CompactLayout); break;
1677     case DetailsView: m_view->setItemLayout(KFileItemListView::DetailsLayout); break;
1678     default: Q_ASSERT(false); break;
1679     }
1680 }
1681
1682 void DolphinView::pasteToUrl(const QUrl& url)
1683 {
1684     KIO::PasteJob *job = KIO::paste(QApplication::clipboard()->mimeData(), url);
1685     KJobWidgets::setWindow(job, this);
1686     m_clearSelectionBeforeSelectingNewItems = true;
1687     m_markFirstNewlySelectedItemAsCurrent = true;
1688     connect(job, &KIO::PasteJob::itemCreated, this, &DolphinView::slotItemCreated);
1689     connect(job, &KIO::PasteJob::result, this, &DolphinView::slotPasteJobResult);
1690 }
1691
1692 QList<QUrl> DolphinView::simplifiedSelectedUrls() const
1693 {
1694     QList<QUrl> urls;
1695
1696     const KFileItemList items = selectedItems();
1697     urls.reserve(items.count());
1698     foreach (const KFileItem& item, items) {
1699         urls.append(item.url());
1700     }
1701
1702     if (itemsExpandable()) {
1703         // TODO: Check if we still need KDirModel for this in KDE 5.0
1704         urls = KDirModel::simplifiedUrlList(urls);
1705     }
1706
1707     return urls;
1708 }
1709
1710 QMimeData* DolphinView::selectionMimeData() const
1711 {
1712     const KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
1713     const KItemSet selectedIndexes = selectionManager->selectedItems();
1714
1715     return m_model->createMimeData(selectedIndexes);
1716 }
1717
1718 void DolphinView::updateWritableState()
1719 {
1720     const bool wasFolderWritable = m_isFolderWritable;
1721     m_isFolderWritable = false;
1722
1723     KFileItem item = m_model->rootItem();
1724     if (item.isNull()) {
1725         // Try to find out if the URL is writable even if the "root item" is
1726         // null, see https://bugs.kde.org/show_bug.cgi?id=330001
1727         item = KFileItem(url());
1728         item.setDelayedMimeTypes(true);
1729     }
1730
1731     KFileItemListProperties capabilities(KFileItemList() << item);
1732     m_isFolderWritable = capabilities.supportsWriting();
1733
1734     if (m_isFolderWritable != wasFolderWritable) {
1735         emit writeStateChanged(m_isFolderWritable);
1736     }
1737 }
1738
1739 QUrl DolphinView::viewPropertiesUrl() const
1740 {
1741     if (m_viewPropertiesContext.isEmpty()) {
1742         return m_url;
1743     }
1744
1745     QUrl url;
1746     url.setScheme(m_url.scheme());
1747     url.setPath(m_viewPropertiesContext);
1748     return url;
1749 }