src/views/dolphinview.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006-2009 by Peter Penz <peter.penz19@gmail.com>        *
   3  *   Copyright (C) 2006 by Gregor Kališnik <gregor@podnapisi.net>          *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  19  ***************************************************************************/
  20
  21 #include "dolphinview.h"
  22
  23 #include <config-nepomuk.h>
  24
  25 #include <QAbstractItemView>
  26 #include <QApplication>
  27 #include <QBoxLayout>
  28 #include <QClipboard>
  29 #include <QDropEvent>
  30 #include <QGraphicsSceneDragDropEvent>
  31 #include <QKeyEvent>
  32 #include <QItemSelection>
  33 #include <QTimer>
  34 #include <QScrollBar>
  35
  36 #include <KActionCollection>
  37 #include <KColorScheme>
  38 #include <KDirModel>
  39 #include <KIconEffect>
  40 #include <KFileItem>
  41 #include <KFileItemListProperties>
  42 #include <KLocale>
  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/DeleteJob>
  51 #include <KIO/JobUiDelegate>
  52 #include <KIO/NetAccess>
  53 #include <KIO/PreviewJob>
  54 #include <KJob>
  55 #include <KMenu>
  56 #include <KMessageBox>
  57 #include <konq_fileitemcapabilities.h>
  58 #include <konq_operations.h>
  59 #include <konqmimedata.h>
  60 #include <KToggleAction>
  61 #include <KUrl>
  62
  63 #include "dolphinnewfilemenuobserver.h"
  64 #include "dolphin_detailsmodesettings.h"
  65 #include "dolphin_generalsettings.h"
  66 #include "dolphinitemlistview.h"
  67 #include "draganddrophelper.h"
  68 #include "renamedialog.h"
  69 #include "versioncontrol/versioncontrolobserver.h"
  70 #include "viewmodecontroller.h"
  71 #include "viewproperties.h"
  72 #include "views/tooltips/tooltipmanager.h"
  73 #include "zoomlevelinfo.h"
  74
  75 #ifdef HAVE_NEPOMUK
  76     #include <Nepomuk/ResourceManager>
  77 #endif
  78
  79 namespace {
  80     const int MaxModeEnum = DolphinView::CompactView;
  81 };
  82
  83 DolphinView::DolphinView(const KUrl& url, QWidget* parent) :
  84     QWidget(parent),
  85     m_active(true),
  86     m_tabsForFiles(false),
  87     m_assureVisibleCurrentIndex(false),
  88     m_isFolderWritable(true),
  89     m_dragging(false),
  90     m_url(url),
  91     m_viewPropertiesContext(),
  92     m_mode(DolphinView::IconsView),
  93     m_visibleRoles(),
  94     m_topLayout(0),
  95     m_model(0),
  96     m_view(0),
  97     m_container(0),
  98     m_toolTipManager(0),
  99     m_selectionChangedTimer(0),
 100     m_currentItemUrl(),
 101     m_restoredContentsPosition(),
 102     m_createdItemUrl(),
 103     m_selectedUrls(),
 104     m_versionControlObserver(0)
 105 {
 106     m_topLayout = new QVBoxLayout(this);
 107     m_topLayout->setSpacing(0);
 108     m_topLayout->setMargin(0);
 109
 110     // When a new item has been created by the "Create New..." menu, the item should
 111     // get selected and it must be assured that the item will get visible. As the
 112     // creation is done asynchronously, several signals must be checked:
 113     connect(&DolphinNewFileMenuObserver::instance(), SIGNAL(itemCreated(KUrl)),
 114             this, SLOT(observeCreatedItem(KUrl)));
 115
 116     m_selectionChangedTimer = new QTimer(this);
 117     m_selectionChangedTimer->setSingleShot(true);
 118     m_selectionChangedTimer->setInterval(300);
 119     connect(m_selectionChangedTimer, SIGNAL(timeout()),
 120             this, SLOT(emitSelectionChangedSignal()));
 121
 122     m_model = new KFileItemModel(this);
 123     m_view = new DolphinItemListView();
 124     m_view->setEnabledSelectionToggles(GeneralSettings::showSelectionToggle());
 125     m_view->setEnlargeSmallPreviews(GeneralSettings::enlargeSmallPreviews());
 126     m_view->setVisibleRoles(QList<QByteArray>() << "text");
 127     applyModeToView();
 128
 129     KItemListController* controller = new KItemListController(m_model, m_view, this);
 130     const int delay = GeneralSettings::autoExpandFolders() ? 750 : -1;
 131     controller->setAutoActivationDelay(delay);
 132
 133     m_container = new KItemListContainer(controller, this);
 134     m_container->installEventFilter(this);
 135     setFocusProxy(m_container);
 136     connect(m_container->horizontalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(hideToolTip()));
 137     connect(m_container->verticalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(hideToolTip()));
 138
 139     controller->setSelectionBehavior(KItemListController::MultiSelection);
 140     connect(controller, SIGNAL(itemActivated(int)), this, SLOT(slotItemActivated(int)));
 141     connect(controller, SIGNAL(itemsActivated(QSet<int>)), this, SLOT(slotItemsActivated(QSet<int>)));
 142     connect(controller, SIGNAL(itemMiddleClicked(int)), this, SLOT(slotItemMiddleClicked(int)));
 143     connect(controller, SIGNAL(itemContextMenuRequested(int,QPointF)), this, SLOT(slotItemContextMenuRequested(int,QPointF)));
 144     connect(controller, SIGNAL(viewContextMenuRequested(QPointF)), this, SLOT(slotViewContextMenuRequested(QPointF)));
 145     connect(controller, SIGNAL(headerContextMenuRequested(QPointF)), this, SLOT(slotHeaderContextMenuRequested(QPointF)));
 146     connect(controller, SIGNAL(mouseButtonPressed(int,Qt::MouseButtons)), this, SLOT(slotMouseButtonPressed(int,Qt::MouseButtons)));
 147     connect(controller, SIGNAL(itemHovered(int)), this, SLOT(slotItemHovered(int)));
 148     connect(controller, SIGNAL(itemUnhovered(int)), this, SLOT(slotItemUnhovered(int)));
 149     connect(controller, SIGNAL(itemDropEvent(int,QGraphicsSceneDragDropEvent*)), this, SLOT(slotItemDropEvent(int,QGraphicsSceneDragDropEvent*)));
 150     connect(controller, SIGNAL(modelChanged(KItemModelBase*,KItemModelBase*)), this, SLOT(slotModelChanged(KItemModelBase*,KItemModelBase*)));
 151
 152     connect(m_model, SIGNAL(directoryLoadingStarted()),       this, SLOT(slotDirectoryLoadingStarted()));
 153     connect(m_model, SIGNAL(directoryLoadingCompleted()),     this, SLOT(slotDirectoryLoadingCompleted()));
 154     connect(m_model, SIGNAL(directoryLoadingProgress(int)),   this, SIGNAL(directoryLoadingProgress(int)));
 155     connect(m_model, SIGNAL(directorySortingProgress(int)),   this, SIGNAL(directorySortingProgress(int)));
 156     connect(m_model, SIGNAL(itemsChanged(KItemRangeList,QSet<QByteArray>)),
 157             this, SLOT(slotItemsChanged()));
 158     connect(m_model, SIGNAL(itemsRemoved(KItemRangeList)),    this, SIGNAL(itemCountChanged()));
 159     connect(m_model, SIGNAL(itemsInserted(KItemRangeList)),   this, SIGNAL(itemCountChanged()));
 160     connect(m_model, SIGNAL(infoMessage(QString)),            this, SIGNAL(infoMessage(QString)));
 161     connect(m_model, SIGNAL(errorMessage(QString)),           this, SIGNAL(errorMessage(QString)));
 162     connect(m_model, SIGNAL(directoryRedirection(KUrl,KUrl)), this, SLOT(slotDirectoryRedirection(KUrl,KUrl)));
 163
 164     m_view->installEventFilter(this);
 165     connect(m_view, SIGNAL(sortOrderChanged(Qt::SortOrder,Qt::SortOrder)),
 166             this, SLOT(slotSortOrderChangedByHeader(Qt::SortOrder,Qt::SortOrder)));
 167     connect(m_view, SIGNAL(sortRoleChanged(QByteArray,QByteArray)),
 168             this, SLOT(slotSortRoleChangedByHeader(QByteArray,QByteArray)));
 169     connect(m_view, SIGNAL(visibleRolesChanged(QList<QByteArray>,QList<QByteArray>)),
 170             this, SLOT(slotVisibleRolesChangedByHeader(QList<QByteArray>,QList<QByteArray>)));
 171     connect(m_view, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)),
 172             this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant)));
 173     connect(m_view->header(), SIGNAL(columnWidthChanged(QByteArray,qreal,qreal)),
 174             this, SLOT(slotHeaderColumnWidthChanged(QByteArray,qreal,qreal)));
 175
 176     KItemListSelectionManager* selectionManager = controller->selectionManager();
 177     connect(selectionManager, SIGNAL(selectionChanged(QSet<int>,QSet<int>)),
 178             this, SLOT(slotSelectionChanged(QSet<int>,QSet<int>)));
 179
 180     m_toolTipManager = new ToolTipManager(this);
 181
 182     m_versionControlObserver = new VersionControlObserver(this);
 183     m_versionControlObserver->setModel(m_model);
 184     connect(m_versionControlObserver, SIGNAL(infoMessage(QString)), this, SIGNAL(infoMessage(QString)));
 185     connect(m_versionControlObserver, SIGNAL(errorMessage(QString)), this, SIGNAL(errorMessage(QString)));
 186     connect(m_versionControlObserver, SIGNAL(operationCompletedMessage(QString)), this, SIGNAL(operationCompletedMessage(QString)));
 187
 188     applyViewProperties();
 189     m_topLayout->addWidget(m_container);
 190
 191     loadDirectory(url);
 192 }
 193
 194 DolphinView::~DolphinView()
 195 {
 196 }
 197
 198 KUrl DolphinView::url() const
 199 {
 200     return m_url;
 201 }
 202
 203 void DolphinView::setActive(bool active)
 204 {
 205     if (active == m_active) {
 206         return;
 207     }
 208
 209     m_active = active;
 210
 211     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 212     if (!active) {
 213         color.setAlpha(150);
 214     }
 215
 216     QWidget* viewport = m_container->viewport();
 217     if (viewport) {
 218         QPalette palette;
 219         palette.setColor(viewport->backgroundRole(), color);
 220         viewport->setPalette(palette);
 221     }
 222
 223     update();
 224
 225     if (active) {
 226         m_container->setFocus();
 227         emit activated();
 228         emit writeStateChanged(m_isFolderWritable);
 229     }
 230 }
 231
 232 bool DolphinView::isActive() const
 233 {
 234     return m_active;
 235 }
 236
 237 void DolphinView::setMode(Mode mode)
 238 {
 239     if (mode != m_mode) {
 240         ViewProperties props(viewPropertiesUrl());
 241         props.setViewMode(mode);
 242         props.save();
 243
 244         applyViewProperties();
 245     }
 246 }
 247
 248 DolphinView::Mode DolphinView::mode() const
 249 {
 250     return m_mode;
 251 }
 252
 253 void DolphinView::setPreviewsShown(bool show)
 254 {
 255     if (previewsShown() == show) {
 256         return;
 257     }
 258
 259     ViewProperties props(viewPropertiesUrl());
 260     props.setPreviewsShown(show);
 261
 262     m_view->setPreviewsShown(show);
 263     emit previewsShownChanged(show);
 264 }
 265
 266 bool DolphinView::previewsShown() const
 267 {
 268     return m_view->previewsShown();
 269 }
 270
 271 void DolphinView::setHiddenFilesShown(bool show)
 272 {
 273     if (m_model->showHiddenFiles() == show) {
 274         return;
 275     }
 276
 277     const KFileItemList itemList = selectedItems();
 278     m_selectedUrls.clear();
 279     m_selectedUrls = itemList.urlList();
 280
 281     ViewProperties props(viewPropertiesUrl());
 282     props.setHiddenFilesShown(show);
 283
 284     m_model->setShowHiddenFiles(show);
 285     emit hiddenFilesShownChanged(show);
 286 }
 287
 288 bool DolphinView::hiddenFilesShown() const
 289 {
 290     return m_model->showHiddenFiles();
 291 }
 292
 293 void DolphinView::setGroupedSorting(bool grouped)
 294 {
 295     if (grouped == groupedSorting()) {
 296         return;
 297     }
 298
 299     ViewProperties props(viewPropertiesUrl());
 300     props.setGroupedSorting(grouped);
 301     props.save();
 302
 303     m_container->controller()->model()->setGroupedSorting(grouped);
 304
 305     emit groupedSortingChanged(grouped);
 306 }
 307
 308 bool DolphinView::groupedSorting() const
 309 {
 310     return m_model->groupedSorting();
 311 }
 312
 313 KFileItemList DolphinView::items() const
 314 {
 315     KFileItemList list;
 316     const int itemCount = m_model->count();
 317     list.reserve(itemCount);
 318
 319     for (int i = 0; i < itemCount; ++i) {
 320         list.append(m_model->fileItem(i));
 321     }
 322
 323     return list;
 324 }
 325
 326 int DolphinView::itemsCount() const
 327 {
 328     return m_model->count();
 329 }
 330
 331 KFileItemList DolphinView::selectedItems() const
 332 {
 333     const KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 334     const QSet<int> selectedIndexes = selectionManager->selectedItems();
 335
 336     KFileItemList selectedItems;
 337     QSetIterator<int> it(selectedIndexes);
 338     while (it.hasNext()) {
 339         const int index = it.next();
 340         selectedItems.append(m_model->fileItem(index));
 341     }
 342     return selectedItems;
 343 }
 344
 345 int DolphinView::selectedItemsCount() const
 346 {
 347     const KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 348     return selectionManager->selectedItems().count();
 349 }
 350
 351 void DolphinView::markUrlsAsSelected(const QList<KUrl>& urls)
 352 {
 353     m_selectedUrls = urls;
 354 }
 355
 356 void DolphinView::markUrlAsCurrent(const KUrl& url)
 357 {
 358     m_currentItemUrl = url;
 359 }
 360
 361 void DolphinView::selectItems(const QRegExp& pattern, bool enabled)
 362 {
 363     const KItemListSelectionManager::SelectionMode mode = enabled
 364                                                         ? KItemListSelectionManager::Select
 365                                                         : KItemListSelectionManager::Deselect;
 366     KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 367
 368     for (int index = 0; index < m_model->count(); index++) {
 369         const KFileItem item = m_model->fileItem(index);
 370         if (pattern.exactMatch(item.text())) {
 371             // An alternative approach would be to store the matching items in a QSet<int> and
 372             // select them in one go after the loop, but we'd need a new function
 373             // KItemListSelectionManager::setSelected(QSet<int>, SelectionMode mode)
 374             // for that.
 375             selectionManager->setSelected(index, 1, mode);
 376         }
 377     }
 378 }
 379
 380 void DolphinView::setZoomLevel(int level)
 381 {
 382     const int oldZoomLevel = zoomLevel();
 383     m_view->setZoomLevel(level);
 384     if (zoomLevel() != oldZoomLevel) {
 385         hideToolTip();
 386         emit zoomLevelChanged(zoomLevel(), oldZoomLevel);
 387     }
 388 }
 389
 390 int DolphinView::zoomLevel() const
 391 {
 392     return m_view->zoomLevel();
 393 }
 394
 395 void DolphinView::setSortRole(const QByteArray& role)
 396 {
 397     if (role != sortRole()) {
 398         updateSortRole(role);
 399     }
 400 }
 401
 402 QByteArray DolphinView::sortRole() const
 403 {
 404     const KItemModelBase* model = m_container->controller()->model();
 405     return model->sortRole();
 406 }
 407
 408 void DolphinView::setSortOrder(Qt::SortOrder order)
 409 {
 410     if (sortOrder() != order) {
 411         updateSortOrder(order);
 412     }
 413 }
 414
 415 Qt::SortOrder DolphinView::sortOrder() const
 416 {
 417     return m_model->sortOrder();
 418 }
 419
 420 void DolphinView::setSortFoldersFirst(bool foldersFirst)
 421 {
 422     if (sortFoldersFirst() != foldersFirst) {
 423         updateSortFoldersFirst(foldersFirst);
 424     }
 425 }
 426
 427 bool DolphinView::sortFoldersFirst() const
 428 {
 429     return m_model->sortDirectoriesFirst();
 430 }
 431
 432 void DolphinView::setVisibleRoles(const QList<QByteArray>& roles)
 433 {
 434     const QList<QByteArray> previousRoles = roles;
 435
 436     ViewProperties props(viewPropertiesUrl());
 437     props.setVisibleRoles(roles);
 438
 439     m_visibleRoles = roles;
 440     m_view->setVisibleRoles(roles);
 441
 442     emit visibleRolesChanged(m_visibleRoles, previousRoles);
 443 }
 444
 445 QList<QByteArray> DolphinView::visibleRoles() const
 446 {
 447     return m_visibleRoles;
 448 }
 449
 450 void DolphinView::reload()
 451 {
 452     QByteArray viewState;
 453     QDataStream saveStream(&viewState, QIODevice::WriteOnly);
 454     saveState(saveStream);
 455
 456     const KFileItemList itemList = selectedItems();
 457     m_selectedUrls.clear();
 458     m_selectedUrls = itemList.urlList();
 459
 460     setUrl(url());
 461     loadDirectory(url(), true);
 462
 463     QDataStream restoreStream(viewState);
 464     restoreState(restoreStream);
 465 }
 466
 467 void DolphinView::stopLoading()
 468 {
 469     m_model->cancelDirectoryLoading();
 470 }
 471
 472 void DolphinView::readSettings()
 473 {
 474     const int oldZoomLevel = m_view->zoomLevel();
 475
 476     GeneralSettings::self()->readConfig();
 477     m_view->readSettings();
 478     applyViewProperties();
 479
 480     const int delay = GeneralSettings::autoExpandFolders() ? 750 : -1;
 481     m_container->controller()->setAutoActivationDelay(delay);
 482
 483     const int newZoomLevel = m_view->zoomLevel();
 484     if (newZoomLevel != oldZoomLevel) {
 485         emit zoomLevelChanged(newZoomLevel, oldZoomLevel);
 486     }
 487 }
 488
 489 void DolphinView::writeSettings()
 490 {
 491     GeneralSettings::self()->writeConfig();
 492     m_view->writeSettings();
 493 }
 494
 495 void DolphinView::setNameFilter(const QString& nameFilter)
 496 {
 497     m_model->setNameFilter(nameFilter);
 498 }
 499
 500 QString DolphinView::nameFilter() const
 501 {
 502     return m_model->nameFilter();
 503 }
 504
 505 QString DolphinView::statusBarText() const
 506 {
 507     QString summary;
 508     QString foldersText;
 509     QString filesText;
 510
 511     int folderCount = 0;
 512     int fileCount = 0;
 513     KIO::filesize_t totalFileSize = 0;
 514
 515     if (m_container->controller()->selectionManager()->hasSelection()) {
 516         // Give a summary of the status of the selected files
 517         const KFileItemList list = selectedItems();
 518         foreach (const KFileItem& item, list) {
 519             if (item.isDir()) {
 520                 ++folderCount;
 521             } else {
 522                 ++fileCount;
 523                 totalFileSize += item.size();
 524             }
 525         }
 526
 527         if (folderCount + fileCount == 1) {
 528             // If only one item is selected, show the filename
 529             filesText = i18nc("@info:status", "<filename>%1</filename> selected", list.first().text());
 530         } else {
 531             // At least 2 items are selected
 532             foldersText = i18ncp("@info:status", "1 Folder selected", "%1 Folders selected", folderCount);
 533             filesText = i18ncp("@info:status", "1 File selected", "%1 Files selected", fileCount);
 534         }
 535     } else {
 536         calculateItemCount(fileCount, folderCount, totalFileSize);
 537         foldersText = i18ncp("@info:status", "1 Folder", "%1 Folders", folderCount);
 538         filesText = i18ncp("@info:status", "1 File", "%1 Files", fileCount);
 539     }
 540
 541     if (fileCount > 0 && folderCount > 0) {
 542         summary = i18nc("@info:status folders, files (size)", "%1, %2 (%3)",
 543                         foldersText, filesText,
 544                         KGlobal::locale()->formatByteSize(totalFileSize));
 545     } else if (fileCount > 0) {
 546         summary = i18nc("@info:status files (size)", "%1 (%2)",
 547                         filesText,
 548                         KGlobal::locale()->formatByteSize(totalFileSize));
 549     } else if (folderCount > 0) {
 550         summary = foldersText;
 551     } else {
 552         summary = i18nc("@info:status", "0 Folders, 0 Files");
 553     }
 554
 555     return summary;
 556 }
 557
 558 QList<QAction*> DolphinView::versionControlActions(const KFileItemList& items) const
 559 {
 560     QList<QAction*> actions;
 561
 562     if (items.isEmpty()) {
 563         const KFileItem item = m_model->rootItem();
 564         if (!item.isNull()) {
 565             actions = m_versionControlObserver->actions(KFileItemList() << item);
 566         }
 567     } else {
 568         actions = m_versionControlObserver->actions(items);
 569     }
 570
 571     return actions;
 572 }
 573
 574 void DolphinView::setUrl(const KUrl& url)
 575 {
 576     if (url == m_url) {
 577         return;
 578     }
 579
 580     emit urlAboutToBeChanged(url);
 581     m_url = url;
 582
 583     hideToolTip();
 584
 585     // It is important to clear the items from the model before
 586     // applying the view properties, otherwise expensive operations
 587     // might be done on the existing items although they get cleared
 588     // anyhow afterwards by loadDirectory().
 589     m_model->clear();
 590     applyViewProperties();
 591     loadDirectory(url);
 592
 593     emit urlChanged(url);
 594 }
 595
 596 void DolphinView::selectAll()
 597 {
 598     KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 599     selectionManager->setSelected(0, m_model->count());
 600 }
 601
 602 void DolphinView::invertSelection()
 603 {
 604     KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 605     selectionManager->setSelected(0, m_model->count(), KItemListSelectionManager::Toggle);
 606 }
 607
 608 void DolphinView::clearSelection()
 609 {
 610     m_container->controller()->selectionManager()->clearSelection();
 611 }
 612
 613 void DolphinView::renameSelectedItems()
 614 {
 615     const KFileItemList items = selectedItems();
 616      if (items.isEmpty()) {
 617          return;
 618      }
 619
 620      if (items.count() == 1) {
 621          const int index = m_model->index(items.first());
 622          m_container->controller()->view()->editRole(index, "text");
 623      } else {
 624          RenameDialog* dialog = new RenameDialog(this, items);
 625          dialog->setAttribute(Qt::WA_DeleteOnClose);
 626          dialog->show();
 627          dialog->raise();
 628          dialog->activateWindow();
 629      }
 630
 631      // Assure that the current index remains visible when KFileItemModel
 632      // will notify the view about changed items (which might result in
 633      // a changed sorting).
 634      m_assureVisibleCurrentIndex = true;
 635 }
 636
 637 void DolphinView::trashSelectedItems()
 638 {
 639     const KUrl::List list = simplifiedSelectedUrls();
 640     KonqOperations::del(this, KonqOperations::TRASH, list);
 641 }
 642
 643 void DolphinView::deleteSelectedItems()
 644 {
 645     const KUrl::List list = simplifiedSelectedUrls();
 646     const bool del = KonqOperations::askDeleteConfirmation(list,
 647                      KonqOperations::DEL,
 648                      KonqOperations::DEFAULT_CONFIRMATION,
 649                      this);
 650
 651     if (del) {
 652         KIO::Job* job = KIO::del(list);
 653         if (job->ui()) {
 654             job->ui()->setWindow(this);
 655         }
 656         connect(job, SIGNAL(result(KJob*)),
 657                 this, SLOT(slotDeleteFileFinished(KJob*)));
 658     }
 659 }
 660
 661 void DolphinView::cutSelectedItems()
 662 {
 663     QMimeData* mimeData = selectionMimeData();
 664     KonqMimeData::addIsCutSelection(mimeData, true);
 665     QApplication::clipboard()->setMimeData(mimeData);
 666 }
 667
 668 void DolphinView::copySelectedItems()
 669 {
 670     QMimeData* mimeData = selectionMimeData();
 671     QApplication::clipboard()->setMimeData(mimeData);
 672 }
 673
 674 void DolphinView::paste()
 675 {
 676     pasteToUrl(url());
 677 }
 678
 679 void DolphinView::pasteIntoFolder()
 680 {
 681     const KFileItemList items = selectedItems();
 682     if ((items.count() == 1) && items.first().isDir()) {
 683         pasteToUrl(items.first().url());
 684     }
 685 }
 686
 687 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 688 {
 689     switch (event->type()) {
 690     case QEvent::FocusIn:
 691         if (watched == m_container) {
 692             setActive(true);
 693         }
 694         break;
 695
 696     case QEvent::GraphicsSceneDragEnter:
 697         if (watched == m_view) {
 698             m_dragging = true;
 699         }
 700         break;
 701
 702     case QEvent::GraphicsSceneDragLeave:
 703         if (watched == m_view) {
 704             m_dragging = false;
 705         }
 706         break;
 707
 708     case QEvent::GraphicsSceneDrop:
 709         if (watched == m_view) {
 710             m_dragging = false;
 711         }
 712     default:
 713         break;
 714     }
 715
 716     return QWidget::eventFilter(watched, event);
 717 }
 718
 719 void DolphinView::wheelEvent(QWheelEvent* event)
 720 {
 721     if (event->modifiers().testFlag(Qt::ControlModifier)) {
 722         const int numDegrees = event->delta() / 8;
 723         const int numSteps = numDegrees / 15;
 724
 725         setZoomLevel(zoomLevel() + numSteps);
 726         event->accept();
 727     } else {
 728         event->ignore();
 729     }
 730 }
 731
 732 void DolphinView::hideEvent(QHideEvent* event)
 733 {
 734     hideToolTip();
 735     QWidget::hideEvent(event);
 736 }
 737
 738 void DolphinView::activate()
 739 {
 740     setActive(true);
 741 }
 742
 743 void DolphinView::slotItemActivated(int index)
 744 {
 745     const KFileItem item = m_model->fileItem(index);
 746     if (!item.isNull()) {
 747         emit itemActivated(item);
 748     }
 749 }
 750
 751 void DolphinView::slotItemsActivated(const QSet<int>& indexes)
 752 {
 753     Q_ASSERT(indexes.count() >= 2);
 754
 755     KFileItemList items;
 756
 757     QSetIterator<int> it(indexes);
 758     while (it.hasNext()) {
 759         const int index = it.next();
 760         items.append(m_model->fileItem(index));
 761     }
 762
 763     foreach (const KFileItem& item, items) {
 764         if (item.isDir()) {
 765             emit tabRequested(item.url());
 766         } else {
 767             emit itemActivated(item);
 768         }
 769     }
 770 }
 771
 772 void DolphinView::slotItemMiddleClicked(int index)
 773 {
 774     const KFileItem item = m_model->fileItem(index);
 775     if (item.isDir() || isTabsForFilesEnabled()) {
 776         emit tabRequested(item.url());
 777     }
 778 }
 779
 780 void DolphinView::slotItemContextMenuRequested(int index, const QPointF& pos)
 781 {
 782     const KFileItem item = m_model->fileItem(index);
 783     emit requestContextMenu(pos.toPoint(), item, url(), QList<QAction*>());
 784 }
 785
 786 void DolphinView::slotViewContextMenuRequested(const QPointF& pos)
 787 {
 788     emit requestContextMenu(pos.toPoint(), KFileItem(), url(), QList<QAction*>());
 789 }
 790
 791 void DolphinView::slotHeaderContextMenuRequested(const QPointF& pos)
 792 {
 793     ViewProperties props(viewPropertiesUrl());
 794
 795     QPointer<KMenu> menu = new KMenu(QApplication::activeWindow());
 796
 797     KItemListView* view = m_container->controller()->view();
 798     const QSet<QByteArray> visibleRolesSet = view->visibleRoles().toSet();
 799
 800     bool nepomukRunning = false;
 801     bool indexingEnabled = false;
 802 #ifdef HAVE_NEPOMUK
 803     nepomukRunning = (Nepomuk::ResourceManager::instance()->initialized());
 804     if (nepomukRunning) {
 805         KConfig config("nepomukserverrc");
 806         indexingEnabled = config.group("Service-nepomukfileindexer").readEntry("autostart", false);
 807     }
 808 #endif
 809
 810     QString groupName;
 811     QMenu* groupMenu = 0;
 812
 813     // Add all roles to the menu that can be shown or hidden by the user
 814     const QList<KFileItemModel::RoleInfo> rolesInfo = KFileItemModel::rolesInformation();
 815     foreach (const KFileItemModel::RoleInfo& info, rolesInfo) {
 816         if (info.role == "text") {
 817             // It should not be possible to hide the "text" role
 818             continue;
 819         }
 820
 821         const QString text = m_model->roleDescription(info.role);
 822         QAction* action = 0;
 823         if (info.group.isEmpty()) {
 824             action = menu->addAction(text);
 825         } else {
 826             if (!groupMenu || info.group != groupName) {
 827                 groupName = info.group;
 828                 groupMenu = menu->addMenu(groupName);
 829             }
 830
 831             action = groupMenu->addAction(text);
 832         }
 833
 834         action->setCheckable(true);
 835         action->setChecked(visibleRolesSet.contains(info.role));
 836         action->setData(info.role);
 837
 838         const bool enable = (!info.requiresNepomuk && !info.requiresIndexer) ||
 839                             (info.requiresNepomuk && nepomukRunning) ||
 840                             (info.requiresIndexer && indexingEnabled);
 841         action->setEnabled(enable);
 842     }
 843
 844     menu->addSeparator();
 845
 846     QActionGroup* widthsGroup = new QActionGroup(menu);
 847     const bool autoColumnWidths = props.headerColumnWidths().isEmpty();
 848
 849     QAction* autoAdjustWidthsAction = menu->addAction(i18nc("@action:inmenu", "Automatic Column Widths"));
 850     autoAdjustWidthsAction->setCheckable(true);
 851     autoAdjustWidthsAction->setChecked(autoColumnWidths);
 852     autoAdjustWidthsAction->setActionGroup(widthsGroup);
 853
 854     QAction* customWidthsAction = menu->addAction(i18nc("@action:inmenu", "Custom Column Widths"));
 855     customWidthsAction->setCheckable(true);
 856     customWidthsAction->setChecked(!autoColumnWidths);
 857     customWidthsAction->setActionGroup(widthsGroup);
 858
 859     QAction* action = menu->exec(pos.toPoint());
 860     if (menu && action) {
 861         KItemListHeader* header = view->header();
 862
 863         if (action == autoAdjustWidthsAction) {
 864             // Clear the column-widths from the viewproperties and turn on
 865             // the automatic resizing of the columns
 866             props.setHeaderColumnWidths(QList<int>());
 867             header->setAutomaticColumnResizing(true);
 868         } else if (action == customWidthsAction) {
 869             // Apply the current column-widths as custom column-widths and turn
 870             // off the automatic resizing of the columns
 871             QList<int> columnWidths;
 872             foreach (const QByteArray& role, view->visibleRoles()) {
 873                 columnWidths.append(header->columnWidth(role));
 874             }
 875             props.setHeaderColumnWidths(columnWidths);
 876             header->setAutomaticColumnResizing(false);
 877         } else {
 878             // Show or hide the selected role
 879             const QByteArray selectedRole = action->data().toByteArray();
 880
 881             QList<QByteArray> visibleRoles = view->visibleRoles();
 882             if (action->isChecked()) {
 883                 visibleRoles.append(selectedRole);
 884             } else {
 885                 visibleRoles.removeOne(selectedRole);
 886             }
 887
 888             view->setVisibleRoles(visibleRoles);
 889             props.setVisibleRoles(visibleRoles);
 890
 891             QList<int> columnWidths;
 892             if (!header->automaticColumnResizing()) {
 893                 foreach (const QByteArray& role, view->visibleRoles()) {
 894                     columnWidths.append(header->columnWidth(role));
 895                 }
 896             }
 897             props.setHeaderColumnWidths(columnWidths);
 898         }
 899     }
 900
 901     delete menu;
 902 }
 903
 904 void DolphinView::slotHeaderColumnWidthChanged(const QByteArray& role, qreal current, qreal previous)
 905 {
 906     Q_UNUSED(previous);
 907
 908     const QList<QByteArray> visibleRoles = m_view->visibleRoles();
 909
 910     ViewProperties props(viewPropertiesUrl());
 911     QList<int> columnWidths = props.headerColumnWidths();
 912     if (columnWidths.count() != visibleRoles.count()) {
 913         columnWidths.clear();
 914         columnWidths.reserve(visibleRoles.count());
 915         const KItemListHeader* header = m_view->header();
 916         foreach (const QByteArray& role, visibleRoles) {
 917             const int width = header->columnWidth(role);
 918             columnWidths.append(width);
 919         }
 920     }
 921
 922     const int roleIndex = visibleRoles.indexOf(role);
 923     Q_ASSERT(roleIndex >= 0 && roleIndex < columnWidths.count());
 924     columnWidths[roleIndex] = current;
 925
 926     props.setHeaderColumnWidths(columnWidths);
 927 }
 928
 929 void DolphinView::slotItemHovered(int index)
 930 {
 931     const KFileItem item = m_model->fileItem(index);
 932
 933     if (GeneralSettings::showToolTips() && !m_dragging) {
 934         QRectF itemRect = m_container->controller()->view()->itemContextRect(index);
 935         const QPoint pos = m_container->mapToGlobal(itemRect.topLeft().toPoint());
 936         itemRect.moveTo(pos);
 937
 938         m_toolTipManager->showToolTip(item, itemRect);
 939     }
 940
 941     emit requestItemInfo(item);
 942 }
 943
 944 void DolphinView::slotItemUnhovered(int index)
 945 {
 946     Q_UNUSED(index);
 947     hideToolTip();
 948     emit requestItemInfo(KFileItem());
 949 }
 950
 951 void DolphinView::slotItemDropEvent(int index, QGraphicsSceneDragDropEvent* event)
 952 {
 953     KUrl destUrl;
 954     KFileItem destItem = m_model->fileItem(index);
 955     if (destItem.isNull() || (!destItem.isDir() && !destItem.isDesktopFile())) {
 956         // Use the URL of the view as drop target if the item is no directory
 957         // or desktop-file
 958         destItem = m_model->rootItem();
 959         destUrl = url();
 960     } else {
 961         // The item represents a directory or desktop-file
 962         destUrl = destItem.url();
 963     }
 964
 965     QDropEvent dropEvent(event->pos().toPoint(),
 966                          event->possibleActions(),
 967                          event->mimeData(),
 968                          event->buttons(),
 969                          event->modifiers());
 970
 971     const QString error = DragAndDropHelper::dropUrls(destItem, destUrl, &dropEvent);
 972     if (!error.isEmpty()) {
 973         emit errorMessage(error);
 974     }
 975
 976     if (destUrl == url()) {
 977         // Mark the dropped urls as selected.
 978         markPastedUrlsAsSelected(event->mimeData());
 979     }
 980 }
 981
 982 void DolphinView::slotModelChanged(KItemModelBase* current, KItemModelBase* previous)
 983 {
 984     if (previous != 0) {
 985         disconnect(previous, SIGNAL(directoryLoadingCompleted()), this, SLOT(slotDirectoryLoadingCompleted()));
 986         m_versionControlObserver->setModel(0);
 987     }
 988
 989     if (current) {
 990         Q_ASSERT(qobject_cast<KFileItemModel*>(current));
 991         connect(current, SIGNAL(loadingCompleted()), this, SLOT(slotDirectoryLoadingCompleted()));
 992
 993         KFileItemModel* fileItemModel = static_cast<KFileItemModel*>(current);
 994         m_versionControlObserver->setModel(fileItemModel);
 995     }
 996 }
 997
 998 void DolphinView::slotMouseButtonPressed(int itemIndex, Qt::MouseButtons buttons)
 999 {
1000     hideToolTip();
1001
1002     if (itemIndex < 0) {
1003         // Trigger the history navigation only when clicking on the viewport:
1004         // Above an item the XButtons provide a simple way to select items in
1005         // the singleClick mode.
1006         if (buttons & Qt::XButton1) {
1007             emit goBackRequested();
1008         } else if (buttons & Qt::XButton2) {
1009             emit goForwardRequested();
1010         }
1011     }
1012 }
1013
1014 void DolphinView::slotSelectionChanged(const QSet<int>& current, const QSet<int>& previous)
1015 {
1016     const int currentCount = current.count();
1017     const int previousCount = previous.count();
1018     const bool selectionStateChanged = (currentCount == 0 && previousCount  > 0) ||
1019                                        (currentCount >  0 && previousCount == 0);
1020
1021     // If nothing has been selected before and something got selected (or if something
1022     // was selected before and now nothing is selected) the selectionChangedSignal must
1023     // be emitted asynchronously as fast as possible to update the edit-actions.
1024     m_selectionChangedTimer->setInterval(selectionStateChanged ? 0 : 300);
1025     m_selectionChangedTimer->start();
1026 }
1027
1028 void DolphinView::emitSelectionChangedSignal()
1029 {
1030     m_selectionChangedTimer->stop();
1031     emit selectionChanged(selectedItems());
1032 }
1033
1034 void DolphinView::updateSortRole(const QByteArray& role)
1035 {
1036     ViewProperties props(viewPropertiesUrl());
1037     props.setSortRole(role);
1038
1039     KItemModelBase* model = m_container->controller()->model();
1040     model->setSortRole(role);
1041
1042     emit sortRoleChanged(role);
1043 }
1044
1045 void DolphinView::updateSortOrder(Qt::SortOrder order)
1046 {
1047     ViewProperties props(viewPropertiesUrl());
1048     props.setSortOrder(order);
1049
1050     m_model->setSortOrder(order);
1051
1052     emit sortOrderChanged(order);
1053 }
1054
1055 void DolphinView::updateSortFoldersFirst(bool foldersFirst)
1056 {
1057     ViewProperties props(viewPropertiesUrl());
1058     props.setSortFoldersFirst(foldersFirst);
1059
1060     m_model->setSortDirectoriesFirst(foldersFirst);
1061
1062     emit sortFoldersFirstChanged(foldersFirst);
1063 }
1064
1065 QPair<bool, QString> DolphinView::pasteInfo() const
1066 {
1067     return KonqOperations::pasteInfo(url());
1068 }
1069
1070 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
1071 {
1072     m_tabsForFiles = tabsForFiles;
1073 }
1074
1075 bool DolphinView::isTabsForFilesEnabled() const
1076 {
1077     return m_tabsForFiles;
1078 }
1079
1080 bool DolphinView::itemsExpandable() const
1081 {
1082     return m_mode == DetailsView;
1083 }
1084
1085 void DolphinView::restoreState(QDataStream& stream)
1086 {
1087     // Restore the current item that had the keyboard focus
1088     stream >> m_currentItemUrl;
1089
1090     // Restore the view position
1091     stream >> m_restoredContentsPosition;
1092
1093     // Restore expanded folders (only relevant for the details view - will be ignored by the view in other view modes)
1094     QSet<KUrl> urls;
1095     stream >> urls;
1096     m_model->restoreExpandedDirectories(urls);
1097 }
1098
1099 void DolphinView::saveState(QDataStream& stream)
1100 {
1101     // Save the current item that has the keyboard focus
1102     const int currentIndex = m_container->controller()->selectionManager()->currentItem();
1103     if (currentIndex != -1) {
1104         KFileItem item = m_model->fileItem(currentIndex);
1105         Q_ASSERT(!item.isNull()); // If the current index is valid a item must exist
1106         KUrl currentItemUrl = item.url();
1107         stream << currentItemUrl;
1108     } else {
1109         stream << KUrl();
1110     }
1111
1112     // Save view position
1113     const qreal x = m_container->horizontalScrollBar()->value();
1114     const qreal y = m_container->verticalScrollBar()->value();
1115     stream << QPoint(x, y);
1116
1117     // Save expanded folders (only relevant for the details view - the set will be empty in other view modes)
1118     stream << m_model->expandedDirectories();
1119 }
1120
1121 KFileItem DolphinView::rootItem() const
1122 {
1123     return m_model->rootItem();
1124 }
1125
1126 void DolphinView::setViewPropertiesContext(const QString& context)
1127 {
1128     m_viewPropertiesContext = context;
1129 }
1130
1131 QString DolphinView::viewPropertiesContext() const
1132 {
1133     return m_viewPropertiesContext;
1134 }
1135
1136 void DolphinView::observeCreatedItem(const KUrl& url)
1137 {
1138     m_createdItemUrl = url;
1139     connect(m_model, SIGNAL(directoryLoadingCompleted()),
1140             this, SLOT(selectAndScrollToCreatedItem()));
1141 }
1142
1143 void DolphinView::selectAndScrollToCreatedItem()
1144 {
1145     KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
1146     const int index = m_model->index(m_createdItemUrl);
1147     if (index != -1) {
1148         selectionManager->setCurrentItem(index);
1149         selectionManager->clearSelection();
1150         selectionManager->setSelected(index);
1151         m_view->scrollToItem(index);
1152     }
1153
1154     disconnect(m_model, SIGNAL(directoryLoadingCompleted()),
1155                this, SLOT(selectAndScrollToCreatedItem()));
1156     m_createdItemUrl = KUrl();
1157 }
1158
1159 void DolphinView::slotDirectoryRedirection(const KUrl& oldUrl, const KUrl& newUrl)
1160 {
1161     if (oldUrl.equals(url(), KUrl::CompareWithoutTrailingSlash)) {
1162         emit redirection(oldUrl, newUrl);
1163         m_url = newUrl; // #186947
1164     }
1165 }
1166
1167 void DolphinView::updateViewState()
1168 {
1169     if (m_currentItemUrl != KUrl()) {
1170         KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
1171         const int currentIndex = m_model->index(m_currentItemUrl);
1172         if (currentIndex != -1) {
1173             selectionManager->setCurrentItem(currentIndex);
1174         } else {
1175             selectionManager->setCurrentItem(0);
1176         }
1177         m_currentItemUrl = KUrl();
1178     }
1179
1180     if (!m_restoredContentsPosition.isNull()) {
1181         const int x = m_restoredContentsPosition.x();
1182         const int y = m_restoredContentsPosition.y();
1183         m_restoredContentsPosition = QPoint();
1184
1185         m_container->horizontalScrollBar()->setValue(x);
1186         m_container->verticalScrollBar()->setValue(y);
1187     }
1188
1189     if (!m_selectedUrls.isEmpty()) {
1190         clearSelection();
1191
1192         KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
1193         QSet<int> selectedItems = selectionManager->selectedItems();
1194
1195         foreach (const KUrl& url, m_selectedUrls) {
1196             const int index = m_model->index(url);
1197             if (index >= 0) {
1198                 selectedItems.insert(index);
1199             }
1200         }
1201
1202         selectionManager->setSelectedItems(selectedItems);
1203         m_selectedUrls.clear();
1204     }
1205 }
1206
1207 void DolphinView::hideToolTip()
1208 {
1209     if (GeneralSettings::showToolTips()) {
1210         m_toolTipManager->hideToolTip();
1211     }
1212 }
1213
1214 void DolphinView::calculateItemCount(int& fileCount,
1215                                      int& folderCount,
1216                                      KIO::filesize_t& totalFileSize) const
1217 {
1218     const int itemCount = m_model->count();
1219     for (int i = 0; i < itemCount; ++i) {
1220         const KFileItem item = m_model->fileItem(i);
1221         if (item.isDir()) {
1222             ++folderCount;
1223         } else {
1224             ++fileCount;
1225             totalFileSize += item.size();
1226         }
1227     }
1228 }
1229
1230 void DolphinView::showHoverInformation(const KFileItem& item)
1231 {
1232     emit requestItemInfo(item);
1233 }
1234
1235 void DolphinView::clearHoverInformation()
1236 {
1237     emit requestItemInfo(KFileItem());
1238 }
1239
1240 void DolphinView::slotDeleteFileFinished(KJob* job)
1241 {
1242     if (job->error() == 0) {
1243         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1244     } else if (job->error() != KIO::ERR_USER_CANCELED) {
1245         emit errorMessage(job->errorString());
1246     }
1247 }
1248
1249 void DolphinView::slotDirectoryLoadingStarted()
1250 {
1251     // Disable the writestate temporary until it can be determined in a fast way
1252     // in DolphinView::slotLoadingCompleted()
1253     if (m_isFolderWritable) {
1254         m_isFolderWritable = false;
1255         emit writeStateChanged(m_isFolderWritable);
1256     }
1257
1258     emit directoryLoadingStarted();
1259 }
1260
1261 void DolphinView::slotDirectoryLoadingCompleted()
1262 {
1263     // Update the view-state. This has to be done asynchronously
1264     // because the view might not be in its final state yet.
1265     QTimer::singleShot(0, this, SLOT(updateViewState()));
1266
1267     emit directoryLoadingCompleted();
1268
1269     updateWritableState();
1270 }
1271
1272 void DolphinView::slotItemsChanged()
1273 {
1274     m_assureVisibleCurrentIndex = false;
1275 }
1276
1277 void DolphinView::slotSortOrderChangedByHeader(Qt::SortOrder current, Qt::SortOrder previous)
1278 {
1279     Q_UNUSED(previous);
1280     Q_ASSERT(m_model->sortOrder() == current);
1281
1282     ViewProperties props(viewPropertiesUrl());
1283     props.setSortOrder(current);
1284
1285     emit sortOrderChanged(current);
1286 }
1287
1288 void DolphinView::slotSortRoleChangedByHeader(const QByteArray& current, const QByteArray& previous)
1289 {
1290     Q_UNUSED(previous);
1291     Q_ASSERT(m_model->sortRole() == current);
1292
1293     ViewProperties props(viewPropertiesUrl());
1294     props.setSortRole(current);
1295
1296     emit sortRoleChanged(current);
1297 }
1298
1299 void DolphinView::slotVisibleRolesChangedByHeader(const QList<QByteArray>& current,
1300                                                   const QList<QByteArray>& previous)
1301 {
1302     Q_UNUSED(previous);
1303     Q_ASSERT(m_container->controller()->view()->visibleRoles() == current);
1304
1305     const QList<QByteArray> previousVisibleRoles = m_visibleRoles;
1306
1307     m_visibleRoles = current;
1308
1309     ViewProperties props(viewPropertiesUrl());
1310     props.setVisibleRoles(m_visibleRoles);
1311
1312     emit visibleRolesChanged(m_visibleRoles, previousVisibleRoles);
1313 }
1314
1315 void DolphinView::slotRoleEditingFinished(int index, const QByteArray& role, const QVariant& value)
1316 {
1317     if (role == "text") {
1318         const KFileItem item = m_model->fileItem(index);
1319         const QString newName = value.toString();
1320         if (!newName.isEmpty() && newName != item.text() && newName != QLatin1String(".") && newName != QLatin1String("..")) {
1321             KonqOperations::rename(this, item.url(), newName);
1322         }
1323     }
1324 }
1325
1326 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1327 {
1328     if (!url.isValid()) {
1329         const QString location(url.pathOrUrl());
1330         if (location.isEmpty()) {
1331             emit errorMessage(i18nc("@info:status", "The location is empty."));
1332         } else {
1333             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1334         }
1335         return;
1336     }
1337
1338     if (reload) {
1339         m_model->refreshDirectory(url);
1340     } else {
1341         m_model->loadDirectory(url);
1342     }
1343 }
1344
1345 void DolphinView::applyViewProperties()
1346 {
1347     m_view->beginTransaction();
1348
1349     const ViewProperties props(viewPropertiesUrl());
1350
1351     const Mode mode = props.viewMode();
1352     if (m_mode != mode) {
1353         const Mode previousMode = m_mode;
1354         m_mode = mode;
1355
1356         // Changing the mode might result in changing
1357         // the zoom level. Remember the old zoom level so
1358         // that zoomLevelChanged() can get emitted.
1359         const int oldZoomLevel = m_view->zoomLevel();
1360         applyModeToView();
1361
1362         emit modeChanged(m_mode, previousMode);
1363
1364         if (m_view->zoomLevel() != oldZoomLevel) {
1365             emit zoomLevelChanged(m_view->zoomLevel(), oldZoomLevel);
1366         }
1367     }
1368
1369     const bool hiddenFilesShown = props.hiddenFilesShown();
1370     if (hiddenFilesShown != m_model->showHiddenFiles()) {
1371         m_model->setShowHiddenFiles(hiddenFilesShown);
1372         emit hiddenFilesShownChanged(hiddenFilesShown);
1373     }
1374
1375     const bool groupedSorting = props.groupedSorting();
1376     if (groupedSorting != m_model->groupedSorting()) {
1377         m_model->setGroupedSorting(groupedSorting);
1378         emit groupedSortingChanged(groupedSorting);
1379     }
1380
1381     const QByteArray sortRole = props.sortRole();
1382     if (sortRole != m_model->sortRole()) {
1383         m_model->setSortRole(sortRole);
1384         emit sortRoleChanged(sortRole);
1385     }
1386
1387     const Qt::SortOrder sortOrder = props.sortOrder();
1388     if (sortOrder != m_model->sortOrder()) {
1389         m_model->setSortOrder(sortOrder);
1390         emit sortOrderChanged(sortOrder);
1391     }
1392
1393     const bool sortFoldersFirst = props.sortFoldersFirst();
1394     if (sortFoldersFirst != m_model->sortDirectoriesFirst()) {
1395         m_model->setSortDirectoriesFirst(sortFoldersFirst);
1396         emit sortFoldersFirstChanged(sortFoldersFirst);
1397     }
1398
1399     const QList<QByteArray> visibleRoles = props.visibleRoles();
1400     if (visibleRoles != m_visibleRoles) {
1401         const QList<QByteArray> previousVisibleRoles = m_visibleRoles;
1402         m_visibleRoles = visibleRoles;
1403         m_view->setVisibleRoles(visibleRoles);
1404         emit visibleRolesChanged(m_visibleRoles, previousVisibleRoles);
1405     }
1406
1407     const bool previewsShown = props.previewsShown();
1408     if (previewsShown != m_view->previewsShown()) {
1409         const int oldZoomLevel = zoomLevel();
1410
1411         m_view->setPreviewsShown(previewsShown);
1412         emit previewsShownChanged(previewsShown);
1413
1414         // Changing the preview-state might result in a changed zoom-level
1415         if (oldZoomLevel != zoomLevel()) {
1416             emit zoomLevelChanged(zoomLevel(), oldZoomLevel);
1417         }
1418     }
1419
1420     KItemListView* itemListView = m_container->controller()->view();
1421     if (itemListView->isHeaderVisible()) {
1422         KItemListHeader* header = itemListView->header();
1423         const QList<int> headerColumnWidths = props.headerColumnWidths();
1424         const int rolesCount = m_visibleRoles.count();
1425         if (headerColumnWidths.count() == rolesCount) {
1426             header->setAutomaticColumnResizing(false);
1427
1428             QHash<QByteArray, qreal> columnWidths;
1429             for (int i = 0; i < rolesCount; ++i) {
1430                 columnWidths.insert(m_visibleRoles[i], headerColumnWidths[i]);
1431             }
1432             header->setColumnWidths(columnWidths);
1433         } else {
1434             header->setAutomaticColumnResizing(true);
1435         }
1436     }
1437
1438     m_view->endTransaction();
1439 }
1440
1441 void DolphinView::applyModeToView()
1442 {
1443     switch (m_mode) {
1444     case IconsView:   m_view->setItemLayout(KFileItemListView::IconsLayout); break;
1445     case CompactView: m_view->setItemLayout(KFileItemListView::CompactLayout); break;
1446     case DetailsView: m_view->setItemLayout(KFileItemListView::DetailsLayout); break;
1447     default: Q_ASSERT(false); break;
1448     }
1449 }
1450
1451 void DolphinView::pasteToUrl(const KUrl& url)
1452 {
1453     markPastedUrlsAsSelected(QApplication::clipboard()->mimeData());
1454     KonqOperations::doPaste(this, url);
1455 }
1456
1457 KUrl::List DolphinView::simplifiedSelectedUrls() const
1458 {
1459     KUrl::List urls;
1460
1461     const KFileItemList items = selectedItems();
1462     foreach (const KFileItem &item, items) {
1463         urls.append(item.url());
1464     }
1465
1466     if (itemsExpandable()) {
1467         // TODO: Check if we still need KDirModel for this in KDE 5.0
1468         urls = KDirModel::simplifiedUrlList(urls);
1469     }
1470
1471     return urls;
1472 }
1473
1474 QMimeData* DolphinView::selectionMimeData() const
1475 {
1476     const KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
1477     const QSet<int> selectedIndexes = selectionManager->selectedItems();
1478
1479     return m_model->createMimeData(selectedIndexes);
1480 }
1481
1482 void DolphinView::markPastedUrlsAsSelected(const QMimeData* mimeData)
1483 {
1484     const KUrl::List sourceUrls = KUrl::List::fromMimeData(mimeData);
1485     KUrl::List destUrls;
1486     foreach (const KUrl& source, sourceUrls) {
1487         KUrl destination(url().url() + "/" + source.fileName());
1488         destUrls << destination;
1489     }
1490     markUrlsAsSelected(destUrls);
1491 }
1492
1493 void DolphinView::updateWritableState()
1494 {
1495     const bool wasFolderWritable = m_isFolderWritable;
1496     m_isFolderWritable = true;
1497
1498     const KFileItem item = m_model->rootItem();
1499     if (!item.isNull()) {
1500         KFileItemListProperties capabilities(KFileItemList() << item);
1501         m_isFolderWritable = capabilities.supportsWriting();
1502     }
1503     if (m_isFolderWritable != wasFolderWritable) {
1504         emit writeStateChanged(m_isFolderWritable);
1505     }
1506 }
1507
1508 KUrl DolphinView::viewPropertiesUrl() const
1509 {
1510     if (m_viewPropertiesContext.isEmpty()) {
1511         return m_url;
1512     }
1513
1514     KUrl url;
1515     url.setProtocol(m_url.protocol());
1516     url.setPath(m_viewPropertiesContext);
1517     return url;
1518 }
1519
1520 #include "dolphinview.moc"