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/kitemlistheader.h>
  46 #include <kitemviews/kitemlistselectionmanager.h>
  47 #include <kitemviews/kitemlistview.h>
  48 #include <kitemviews/kitemlistcontroller.h>
  49 #include <KIO/DeleteJob>
  50 #include <KIO/NetAccess>
  51 #include <KIO/PreviewJob>
  52 #include <KJob>
  53 #include <KMenu>
  54 #include <KMessageBox>
  55 #include <konq_fileitemcapabilities.h>
  56 #include <konq_operations.h>
  57 #include <konqmimedata.h>
  58 #include <KToggleAction>
  59 #include <KUrl>
  60
  61 #include "dolphinnewfilemenuobserver.h"
  62 #include "dolphin_detailsmodesettings.h"
  63 #include "dolphin_generalsettings.h"
  64 #include "dolphinitemlistcontainer.h"
  65 #include "draganddrophelper.h"
  66 #include "renamedialog.h"
  67 #include "versioncontrol/versioncontrolobserver.h"
  68 #include "viewmodecontroller.h"
  69 #include "viewproperties.h"
  70 #include "views/tooltips/tooltipmanager.h"
  71 #include "zoomlevelinfo.h"
  72
  73 #ifdef HAVE_NEPOMUK
  74     #include <Nepomuk/ResourceManager>
  75 #endif
  76
  77 namespace {
  78     const int MaxModeEnum = DolphinView::CompactView;
  79 };
  80
  81 DolphinView::DolphinView(const KUrl& url, QWidget* parent) :
  82     QWidget(parent),
  83     m_active(true),
  84     m_tabsForFiles(false),
  85     m_assureVisibleCurrentIndex(false),
  86     m_isFolderWritable(true),
  87     m_dragging(false),
  88     m_url(url),
  89     m_mode(DolphinView::IconsView),
  90     m_visibleRoles(),
  91     m_topLayout(0),
  92     m_container(0),
  93     m_toolTipManager(0),
  94     m_selectionChangedTimer(0),
  95     m_currentItemUrl(),
  96     m_restoredContentsPosition(),
  97     m_createdItemUrl(),
  98     m_selectedUrls(),
  99     m_versionControlObserver(0)
 100 {
 101     m_topLayout = new QVBoxLayout(this);
 102     m_topLayout->setSpacing(0);
 103     m_topLayout->setMargin(0);
 104
 105     // When a new item has been created by the "Create New..." menu, the item should
 106     // get selected and it must be assured that the item will get visible. As the
 107     // creation is done asynchronously, several signals must be checked:
 108     connect(&DolphinNewFileMenuObserver::instance(), SIGNAL(itemCreated(KUrl)),
 109             this, SLOT(observeCreatedItem(KUrl)));
 110
 111     m_selectionChangedTimer = new QTimer(this);
 112     m_selectionChangedTimer->setSingleShot(true);
 113     m_selectionChangedTimer->setInterval(300);
 114     connect(m_selectionChangedTimer, SIGNAL(timeout()),
 115             this, SLOT(emitSelectionChangedSignal()));
 116
 117     m_container = new DolphinItemListContainer(this);
 118     m_container->setVisibleRoles(QList<QByteArray>() << "name");
 119     m_container->installEventFilter(this);
 120     setFocusProxy(m_container);
 121     connect(m_container->horizontalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(hideToolTip()));
 122     connect(m_container->verticalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(hideToolTip()));
 123
 124     KItemListController* controller = m_container->controller();
 125     controller->setSelectionBehavior(KItemListController::MultiSelection);
 126     connect(controller, SIGNAL(itemActivated(int)), this, SLOT(slotItemActivated(int)));
 127     connect(controller, SIGNAL(itemsActivated(QSet<int>)), this, SLOT(slotItemsActivated(QSet<int>)));
 128     connect(controller, SIGNAL(itemMiddleClicked(int)), this, SLOT(slotItemMiddleClicked(int)));
 129     connect(controller, SIGNAL(itemContextMenuRequested(int,QPointF)), this, SLOT(slotItemContextMenuRequested(int,QPointF)));
 130     connect(controller, SIGNAL(viewContextMenuRequested(QPointF)), this, SLOT(slotViewContextMenuRequested(QPointF)));
 131     connect(controller, SIGNAL(headerContextMenuRequested(QPointF)), this, SLOT(slotHeaderContextMenuRequested(QPointF)));
 132     connect(controller, SIGNAL(mouseButtonPressed(int,Qt::MouseButtons)), this, SLOT(slotMouseButtonPressed(int,Qt::MouseButtons)));
 133     connect(controller, SIGNAL(itemHovered(int)), this, SLOT(slotItemHovered(int)));
 134     connect(controller, SIGNAL(itemUnhovered(int)), this, SLOT(slotItemUnhovered(int)));
 135     connect(controller, SIGNAL(itemDropEvent(int,QGraphicsSceneDragDropEvent*)), this, SLOT(slotItemDropEvent(int,QGraphicsSceneDragDropEvent*)));
 136     connect(controller, SIGNAL(modelChanged(KItemModelBase*,KItemModelBase*)), this, SLOT(slotModelChanged(KItemModelBase*,KItemModelBase*)));
 137
 138     KFileItemModel* model = fileItemModel();
 139     connect(model, SIGNAL(directoryLoadingStarted()),       this, SLOT(slotDirectoryLoadingStarted()));
 140     connect(model, SIGNAL(directoryLoadingCompleted()),     this, SLOT(slotDirectoryLoadingCompleted()));
 141     connect(model, SIGNAL(directoryLoadingProgress(int)),   this, SIGNAL(directoryLoadingProgress(int)));
 142     connect(model, SIGNAL(directorySortingProgress(int)),   this, SIGNAL(directorySortingProgress(int)));
 143     connect(model, SIGNAL(itemsChanged(KItemRangeList,QSet<QByteArray>)),
 144             this, SLOT(slotItemsChanged()));
 145     connect(model, SIGNAL(itemsRemoved(KItemRangeList)),    this, SIGNAL(itemCountChanged()));
 146     connect(model, SIGNAL(itemsInserted(KItemRangeList)),   this, SIGNAL(itemCountChanged()));
 147     connect(model, SIGNAL(infoMessage(QString)),            this, SIGNAL(infoMessage(QString)));
 148     connect(model, SIGNAL(errorMessage(QString)),           this, SIGNAL(errorMessage(QString)));
 149     connect(model, SIGNAL(directoryRedirection(KUrl,KUrl)), this, SLOT(slotDirectoryRedirection(KUrl,KUrl)));
 150
 151     KItemListView* view = controller->view();
 152     view->installEventFilter(this);
 153     connect(view, SIGNAL(sortOrderChanged(Qt::SortOrder,Qt::SortOrder)),
 154             this, SLOT(slotSortOrderChangedByHeader(Qt::SortOrder,Qt::SortOrder)));
 155     connect(view, SIGNAL(sortRoleChanged(QByteArray,QByteArray)),
 156             this, SLOT(slotSortRoleChangedByHeader(QByteArray,QByteArray)));
 157     connect(view, SIGNAL(visibleRolesChanged(QList<QByteArray>,QList<QByteArray>)),
 158             this, SLOT(slotVisibleRolesChangedByHeader(QList<QByteArray>,QList<QByteArray>)));
 159     connect(view->header(), SIGNAL(columnWidthChanged(QByteArray,qreal,qreal)),
 160             this, SLOT(slotHeaderColumnWidthChanged(QByteArray,qreal,qreal)));
 161
 162     KItemListSelectionManager* selectionManager = controller->selectionManager();
 163     connect(selectionManager, SIGNAL(selectionChanged(QSet<int>,QSet<int>)),
 164             this, SLOT(slotSelectionChanged(QSet<int>,QSet<int>)));
 165
 166     m_toolTipManager = new ToolTipManager(this);
 167
 168     m_versionControlObserver = new VersionControlObserver(this);
 169     m_versionControlObserver->setModel(model);
 170     connect(m_versionControlObserver, SIGNAL(infoMessage(QString)), this, SIGNAL(infoMessage(QString)));
 171     connect(m_versionControlObserver, SIGNAL(errorMessage(QString)), this, SIGNAL(errorMessage(QString)));
 172     connect(m_versionControlObserver, SIGNAL(operationCompletedMessage(QString)), this, SIGNAL(operationCompletedMessage(QString)));
 173
 174     applyViewProperties();
 175     m_topLayout->addWidget(m_container);
 176
 177     loadDirectory(url);
 178 }
 179
 180 DolphinView::~DolphinView()
 181 {
 182 }
 183
 184 KUrl DolphinView::url() const
 185 {
 186     return m_url;
 187 }
 188
 189 void DolphinView::setActive(bool active)
 190 {
 191     if (active == m_active) {
 192         return;
 193     }
 194
 195     m_active = active;
 196
 197     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 198     if (!active) {
 199         color.setAlpha(150);
 200     }
 201
 202     QWidget* viewport = m_container->viewport();
 203     if (viewport) {
 204         QPalette palette;
 205         palette.setColor(viewport->backgroundRole(), color);
 206         viewport->setPalette(palette);
 207     }
 208
 209     update();
 210
 211     if (active) {
 212         m_container->setFocus();
 213         emit activated();
 214         emit writeStateChanged(m_isFolderWritable);
 215     }
 216 }
 217
 218 bool DolphinView::isActive() const
 219 {
 220     return m_active;
 221 }
 222
 223 void DolphinView::setMode(Mode mode)
 224 {
 225     if (mode != m_mode) {
 226         ViewProperties props(url());
 227         props.setViewMode(mode);
 228         props.save();
 229
 230         applyViewProperties();
 231     }
 232 }
 233
 234 DolphinView::Mode DolphinView::mode() const
 235 {
 236     return m_mode;
 237 }
 238
 239 void DolphinView::setPreviewsShown(bool show)
 240 {
 241     if (previewsShown() == show) {
 242         return;
 243     }
 244
 245     ViewProperties props(url());
 246     props.setPreviewsShown(show);
 247
 248     m_container->setPreviewsShown(show);
 249     emit previewsShownChanged(show);
 250 }
 251
 252 bool DolphinView::previewsShown() const
 253 {
 254     return m_container->previewsShown();
 255 }
 256
 257 void DolphinView::setHiddenFilesShown(bool show)
 258 {
 259     KFileItemModel* model = fileItemModel();
 260     if (model->showHiddenFiles() == show) {
 261         return;
 262     }
 263
 264     const KFileItemList itemList = selectedItems();
 265     m_selectedUrls.clear();
 266     m_selectedUrls = itemList.urlList();
 267
 268     ViewProperties props(url());
 269     props.setHiddenFilesShown(show);
 270
 271     model->setShowHiddenFiles(show);
 272     emit hiddenFilesShownChanged(show);
 273 }
 274
 275 bool DolphinView::hiddenFilesShown() const
 276 {
 277     return fileItemModel()->showHiddenFiles();
 278 }
 279
 280 void DolphinView::setGroupedSorting(bool grouped)
 281 {
 282     if (grouped == groupedSorting()) {
 283         return;
 284     }
 285
 286     ViewProperties props(url());
 287     props.setGroupedSorting(grouped);
 288     props.save();
 289
 290     m_container->controller()->model()->setGroupedSorting(grouped);
 291
 292     emit groupedSortingChanged(grouped);
 293 }
 294
 295 bool DolphinView::groupedSorting() const
 296 {
 297     return fileItemModel()->groupedSorting();
 298 }
 299
 300 KFileItemList DolphinView::items() const
 301 {
 302     KFileItemList list;
 303     const KFileItemModel* model = fileItemModel();
 304     const int itemCount = model->count();
 305     list.reserve(itemCount);
 306
 307     for (int i = 0; i < itemCount; ++i) {
 308         list.append(model->fileItem(i));
 309     }
 310
 311     return list;
 312 }
 313
 314 int DolphinView::itemsCount() const
 315 {
 316     return fileItemModel()->count();
 317 }
 318
 319 KFileItemList DolphinView::selectedItems() const
 320 {
 321     const KFileItemModel* model = fileItemModel();
 322     const KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 323     const QSet<int> selectedIndexes = selectionManager->selectedItems();
 324
 325     KFileItemList selectedItems;
 326     QSetIterator<int> it(selectedIndexes);
 327     while (it.hasNext()) {
 328         const int index = it.next();
 329         selectedItems.append(model->fileItem(index));
 330     }
 331     return selectedItems;
 332 }
 333
 334 int DolphinView::selectedItemsCount() const
 335 {
 336     const KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 337     return selectionManager->selectedItems().count();
 338 }
 339
 340 void DolphinView::markUrlsAsSelected(const QList<KUrl>& urls)
 341 {
 342     m_selectedUrls = urls;
 343 }
 344
 345 void DolphinView::markUrlAsCurrent(const KUrl& url)
 346 {
 347     m_currentItemUrl = url;
 348 }
 349
 350 void DolphinView::selectItems(const QRegExp& pattern, bool enabled)
 351 {
 352     const KItemListSelectionManager::SelectionMode mode = enabled
 353                                                         ? KItemListSelectionManager::Select
 354                                                         : KItemListSelectionManager::Deselect;
 355     const KFileItemModel* model = fileItemModel();
 356     KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 357
 358     for (int index = 0; index < model->count(); index++) {
 359         const KFileItem item = model->fileItem(index);
 360         if (pattern.exactMatch(item.text())) {
 361             // An alternative approach would be to store the matching items in a QSet<int> and
 362             // select them in one go after the loop, but we'd need a new function
 363             // KItemListSelectionManager::setSelected(QSet<int>, SelectionMode mode)
 364             // for that.
 365             selectionManager->setSelected(index, 1, mode);
 366         }
 367     }
 368 }
 369
 370 void DolphinView::setZoomLevel(int level)
 371 {
 372     const int oldZoomLevel = zoomLevel();
 373     m_container->setZoomLevel(level);
 374     if (zoomLevel() != oldZoomLevel) {
 375         emit zoomLevelChanged(zoomLevel(), oldZoomLevel);
 376     }
 377 }
 378
 379 int DolphinView::zoomLevel() const
 380 {
 381     return m_container->zoomLevel();
 382 }
 383
 384 void DolphinView::setSortRole(const QByteArray& role)
 385 {
 386     if (role != sortRole()) {
 387         updateSortRole(role);
 388     }
 389 }
 390
 391 QByteArray DolphinView::sortRole() const
 392 {
 393     const KItemModelBase* model = m_container->controller()->model();
 394     return model->sortRole();
 395 }
 396
 397 void DolphinView::setSortOrder(Qt::SortOrder order)
 398 {
 399     if (sortOrder() != order) {
 400         updateSortOrder(order);
 401     }
 402 }
 403
 404 Qt::SortOrder DolphinView::sortOrder() const
 405 {
 406     KItemModelBase* model = fileItemModel();
 407     return model->sortOrder();
 408 }
 409
 410 void DolphinView::setSortFoldersFirst(bool foldersFirst)
 411 {
 412     if (sortFoldersFirst() != foldersFirst) {
 413         updateSortFoldersFirst(foldersFirst);
 414     }
 415 }
 416
 417 bool DolphinView::sortFoldersFirst() const
 418 {
 419     KFileItemModel* model = fileItemModel();
 420     return model->sortDirectoriesFirst();
 421 }
 422
 423 void DolphinView::setVisibleRoles(const QList<QByteArray>& roles)
 424 {
 425     const QList<QByteArray> previousRoles = roles;
 426
 427     ViewProperties props(url());
 428     props.setVisibleRoles(roles);
 429
 430     m_visibleRoles = roles;
 431     m_container->setVisibleRoles(roles);
 432
 433     emit visibleRolesChanged(m_visibleRoles, previousRoles);
 434 }
 435
 436 QList<QByteArray> DolphinView::visibleRoles() const
 437 {
 438     return m_visibleRoles;
 439 }
 440
 441 void DolphinView::reload()
 442 {
 443     QByteArray viewState;
 444     QDataStream saveStream(&viewState, QIODevice::WriteOnly);
 445     saveState(saveStream);
 446
 447     const KFileItemList itemList = selectedItems();
 448     m_selectedUrls.clear();
 449     m_selectedUrls = itemList.urlList();
 450
 451     setUrl(url());
 452     loadDirectory(url(), true);
 453
 454     QDataStream restoreStream(viewState);
 455     restoreState(restoreStream);
 456 }
 457
 458 void DolphinView::stopLoading()
 459 {
 460     fileItemModel()->cancelDirectoryLoading();
 461 }
 462
 463 void DolphinView::readSettings()
 464 {
 465     const int oldZoomLevel = m_container->zoomLevel();
 466
 467     GeneralSettings::self()->readConfig();
 468     m_container->readSettings();
 469     applyViewProperties();
 470
 471     const int newZoomLevel = m_container->zoomLevel();
 472     if (newZoomLevel != oldZoomLevel) {
 473         emit zoomLevelChanged(newZoomLevel, oldZoomLevel);
 474     }
 475 }
 476
 477 void DolphinView::writeSettings()
 478 {
 479     GeneralSettings::self()->writeConfig();
 480     m_container->writeSettings();
 481 }
 482
 483 void DolphinView::setNameFilter(const QString& nameFilter)
 484 {
 485     fileItemModel()->setNameFilter(nameFilter);
 486 }
 487
 488 QString DolphinView::nameFilter() const
 489 {
 490     return fileItemModel()->nameFilter();
 491 }
 492
 493 QString DolphinView::statusBarText() const
 494 {
 495     QString summary;
 496     QString foldersText;
 497     QString filesText;
 498
 499     int folderCount = 0;
 500     int fileCount = 0;
 501     KIO::filesize_t totalFileSize = 0;
 502
 503     if (m_container->controller()->selectionManager()->hasSelection()) {
 504         // Give a summary of the status of the selected files
 505         const KFileItemList list = selectedItems();
 506         foreach (const KFileItem& item, list) {
 507             if (item.isDir()) {
 508                 ++folderCount;
 509             } else {
 510                 ++fileCount;
 511                 totalFileSize += item.size();
 512             }
 513         }
 514
 515         if (folderCount + fileCount == 1) {
 516             // If only one item is selected, show the filename
 517             filesText = i18nc("@info:status", "<filename>%1</filename> selected", list.first().text());
 518         } else {
 519             // At least 2 items are selected
 520             foldersText = i18ncp("@info:status", "1 Folder selected", "%1 Folders selected", folderCount);
 521             filesText = i18ncp("@info:status", "1 File selected", "%1 Files selected", fileCount);
 522         }
 523     } else {
 524         calculateItemCount(fileCount, folderCount, totalFileSize);
 525         foldersText = i18ncp("@info:status", "1 Folder", "%1 Folders", folderCount);
 526         filesText = i18ncp("@info:status", "1 File", "%1 Files", fileCount);
 527     }
 528
 529     if (fileCount > 0 && folderCount > 0) {
 530         summary = i18nc("@info:status folders, files (size)", "%1, %2 (%3)",
 531                         foldersText, filesText,
 532                         KGlobal::locale()->formatByteSize(totalFileSize));
 533     } else if (fileCount > 0) {
 534         summary = i18nc("@info:status files (size)", "%1 (%2)",
 535                         filesText,
 536                         KGlobal::locale()->formatByteSize(totalFileSize));
 537     } else if (folderCount > 0) {
 538         summary = foldersText;
 539     } else {
 540         summary = i18nc("@info:status", "0 Folders, 0 Files");
 541     }
 542
 543     return summary;
 544 }
 545
 546 QList<QAction*> DolphinView::versionControlActions(const KFileItemList& items) const
 547 {
 548     QList<QAction*> actions;
 549
 550     if (items.isEmpty()) {
 551         const KFileItem item = fileItemModel()->rootItem();
 552         actions = m_versionControlObserver->actions(KFileItemList() << item);
 553     } else {
 554         actions = m_versionControlObserver->actions(items);
 555     }
 556
 557     return actions;
 558 }
 559
 560 void DolphinView::setUrl(const KUrl& url)
 561 {
 562     if (url == m_url) {
 563         return;
 564     }
 565
 566     emit urlAboutToBeChanged(url);
 567     m_url = url;
 568
 569     hideToolTip();
 570
 571     // It is important to clear the items from the model before
 572     // applying the view properties, otherwise expensive operations
 573     // might be done on the existing items although they get cleared
 574     // anyhow afterwards by loadDirectory().
 575     fileItemModel()->clear();
 576     applyViewProperties();
 577     loadDirectory(url);
 578
 579     emit urlChanged(url);
 580 }
 581
 582 void DolphinView::selectAll()
 583 {
 584     KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 585     selectionManager->setSelected(0, fileItemModel()->count());
 586 }
 587
 588 void DolphinView::invertSelection()
 589 {
 590     KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 591     selectionManager->setSelected(0, fileItemModel()->count(), KItemListSelectionManager::Toggle);
 592 }
 593
 594 void DolphinView::clearSelection()
 595 {
 596     m_container->controller()->selectionManager()->clearSelection();
 597 }
 598
 599 void DolphinView::renameSelectedItems()
 600 {
 601     KFileItemList items = selectedItems();
 602     const int itemCount = items.count();
 603     if (itemCount < 1) {
 604         return;
 605     }
 606
 607     // TODO: The new view-engine introduced with Dolphin 2.0 does not support inline
 608     // renaming yet.
 609     /*if ((itemCount == 1) && DolphinSettings::instance().generalSettings()->renameInline()) {
 610         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForItem(items.first());
 611         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
 612         m_viewAccessor.itemView()->edit(proxyIndex);
 613     } else {*/
 614         RenameDialog* dialog = new RenameDialog(this, items);
 615         dialog->setAttribute(Qt::WA_DeleteOnClose);
 616         dialog->show();
 617         dialog->raise();
 618         dialog->activateWindow();
 619     //}
 620
 621     // Assure that the current index remains visible when KFileItemModel
 622     // will notify the view about changed items (which might result in
 623     // a changed sorting).
 624     m_assureVisibleCurrentIndex = true;
 625 }
 626
 627 void DolphinView::trashSelectedItems()
 628 {
 629     const KUrl::List list = simplifiedSelectedUrls();
 630     KonqOperations::del(this, KonqOperations::TRASH, list);
 631 }
 632
 633 void DolphinView::deleteSelectedItems()
 634 {
 635     const KUrl::List list = simplifiedSelectedUrls();
 636     const bool del = KonqOperations::askDeleteConfirmation(list,
 637                      KonqOperations::DEL,
 638                      KonqOperations::DEFAULT_CONFIRMATION,
 639                      this);
 640
 641     if (del) {
 642         KIO::Job* job = KIO::del(list);
 643         connect(job, SIGNAL(result(KJob*)),
 644                 this, SLOT(slotDeleteFileFinished(KJob*)));
 645     }
 646 }
 647
 648 void DolphinView::cutSelectedItems()
 649 {
 650     QMimeData* mimeData = selectionMimeData();
 651     KonqMimeData::addIsCutSelection(mimeData, true);
 652     QApplication::clipboard()->setMimeData(mimeData);
 653 }
 654
 655 void DolphinView::copySelectedItems()
 656 {
 657     QMimeData* mimeData = selectionMimeData();
 658     QApplication::clipboard()->setMimeData(mimeData);
 659 }
 660
 661 void DolphinView::paste()
 662 {
 663     pasteToUrl(url());
 664 }
 665
 666 void DolphinView::pasteIntoFolder()
 667 {
 668     const KFileItemList items = selectedItems();
 669     if ((items.count() == 1) && items.first().isDir()) {
 670         pasteToUrl(items.first().url());
 671     }
 672 }
 673
 674 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 675 {
 676     switch (event->type()) {
 677     case QEvent::FocusIn:
 678         if (watched == m_container) {
 679             setActive(true);
 680         }
 681         break;
 682
 683     case QEvent::GraphicsSceneDragEnter:
 684         if (watched == m_container->controller()->view()) {
 685             m_dragging = true;
 686         }
 687         break;
 688
 689     case QEvent::GraphicsSceneDragLeave:
 690         if (watched == m_container->controller()->view()) {
 691             m_dragging = false;
 692         }
 693         break;
 694
 695     case QEvent::GraphicsSceneDrop:
 696         if (watched == m_container->controller()->view()) {
 697             m_dragging = false;
 698         }
 699     default:
 700         break;
 701     }
 702
 703     return QWidget::eventFilter(watched, event);
 704 }
 705
 706 void DolphinView::wheelEvent(QWheelEvent* event)
 707 {
 708     if (event->modifiers().testFlag(Qt::ControlModifier)) {
 709         const int numDegrees = event->delta() / 8;
 710         const int numSteps = numDegrees / 15;
 711
 712         setZoomLevel(zoomLevel() + numSteps);
 713         event->accept();
 714     } else {
 715         event->ignore();
 716     }
 717 }
 718
 719 void DolphinView::hideEvent(QHideEvent* event)
 720 {
 721     hideToolTip();
 722     QWidget::hideEvent(event);
 723 }
 724
 725 void DolphinView::activate()
 726 {
 727     setActive(true);
 728 }
 729
 730 void DolphinView::slotItemActivated(int index)
 731 {
 732     const KFileItem item = fileItemModel()->fileItem(index);
 733     if (!item.isNull()) {
 734         emit itemActivated(item);
 735     }
 736 }
 737
 738 void DolphinView::slotItemsActivated(const QSet<int>& indexes)
 739 {
 740     Q_ASSERT(indexes.count() >= 2);
 741
 742     KFileItemList items;
 743
 744     KFileItemModel* model = fileItemModel();
 745     QSetIterator<int> it(indexes);
 746     while (it.hasNext()) {
 747         const int index = it.next();
 748         items.append(model->fileItem(index));
 749     }
 750
 751     foreach (const KFileItem& item, items) {
 752         if (item.isDir()) {
 753             emit tabRequested(item.url());
 754         } else {
 755             emit itemActivated(item);
 756         }
 757     }
 758 }
 759
 760 void DolphinView::slotItemMiddleClicked(int index)
 761 {
 762     const KFileItem item = fileItemModel()->fileItem(index);
 763     if (item.isDir() || isTabsForFilesEnabled()) {
 764         emit tabRequested(item.url());
 765     }
 766 }
 767
 768 void DolphinView::slotItemContextMenuRequested(int index, const QPointF& pos)
 769 {
 770     const KFileItem item = fileItemModel()->fileItem(index);
 771     emit requestContextMenu(pos.toPoint(), item, url(), QList<QAction*>());
 772 }
 773
 774 void DolphinView::slotViewContextMenuRequested(const QPointF& pos)
 775 {
 776     emit requestContextMenu(pos.toPoint(), KFileItem(), url(), QList<QAction*>());
 777 }
 778
 779 void DolphinView::slotHeaderContextMenuRequested(const QPointF& pos)
 780 {
 781     ViewProperties props(url());
 782
 783     QPointer<KMenu> menu = new KMenu(QApplication::activeWindow());
 784
 785     KItemListView* view = m_container->controller()->view();
 786     const QSet<QByteArray> visibleRolesSet = view->visibleRoles().toSet();
 787
 788     bool nepomukRunning = false;
 789     bool indexingEnabled = false;
 790 #ifdef HAVE_NEPOMUK
 791     nepomukRunning = (Nepomuk::ResourceManager::instance()->init() == 0);
 792     if (nepomukRunning) {
 793         KConfig config("nepomukserverrc");
 794         indexingEnabled = config.group("Service-nepomukfileindexer").readEntry("autostart", false);
 795     }
 796 #endif
 797
 798     QString groupName;
 799     QMenu* groupMenu = 0;
 800
 801     // Add all roles to the menu that can be shown or hidden by the user
 802     const QList<KFileItemModel::RoleInfo> rolesInfo = KFileItemModel::rolesInformation();
 803     foreach (const KFileItemModel::RoleInfo& info, rolesInfo) {
 804         if (info.role == "name") {
 805             // It should not be possible to hide the "name" role
 806             continue;
 807         }
 808
 809         const QString text = fileItemModel()->roleDescription(info.role);
 810         QAction* action = 0;
 811         if (info.group.isEmpty()) {
 812             action = menu->addAction(text);
 813         } else {
 814             if (!groupMenu || info.group != groupName) {
 815                 groupName = info.group;
 816                 groupMenu = menu->addMenu(groupName);
 817             }
 818
 819             action = groupMenu->addAction(text);
 820         }
 821
 822         action->setCheckable(true);
 823         action->setChecked(visibleRolesSet.contains(info.role));
 824         action->setData(info.role);
 825
 826         const bool enable = (!info.requiresNepomuk && !info.requiresIndexer) ||
 827                             (info.requiresNepomuk && nepomukRunning) ||
 828                             (info.requiresIndexer && indexingEnabled);
 829         action->setEnabled(enable);
 830     }
 831
 832     menu->addSeparator();
 833
 834     QActionGroup* widthsGroup = new QActionGroup(menu);
 835     const bool autoColumnWidths = props.headerColumnWidths().isEmpty();
 836
 837     QAction* autoAdjustWidthsAction = menu->addAction(i18nc("@action:inmenu", "Automatic Column Widths"));
 838     autoAdjustWidthsAction->setCheckable(true);
 839     autoAdjustWidthsAction->setChecked(autoColumnWidths);
 840     autoAdjustWidthsAction->setActionGroup(widthsGroup);
 841
 842     QAction* customWidthsAction = menu->addAction(i18nc("@action:inmenu", "Custom Column Widths"));
 843     customWidthsAction->setCheckable(true);
 844     customWidthsAction->setChecked(!autoColumnWidths);
 845     customWidthsAction->setActionGroup(widthsGroup);
 846
 847     QAction* action = menu->exec(pos.toPoint());
 848     if (menu && action) {
 849         KItemListHeader* header = view->header();
 850
 851         if (action == autoAdjustWidthsAction) {
 852             // Clear the column-widths from the viewproperties and turn on
 853             // the automatic resizing of the columns
 854             props.setHeaderColumnWidths(QList<int>());
 855             header->setAutomaticColumnResizing(true);
 856         } else if (action == customWidthsAction) {
 857             // Apply the current column-widths as custom column-widths and turn
 858             // off the automatic resizing of the columns
 859             QList<int> columnWidths;
 860             foreach (const QByteArray& role, view->visibleRoles()) {
 861                 columnWidths.append(header->columnWidth(role));
 862             }
 863             props.setHeaderColumnWidths(columnWidths);
 864             header->setAutomaticColumnResizing(false);
 865         } else {
 866             // Show or hide the selected role
 867             const QByteArray selectedRole = action->data().toByteArray();
 868
 869             QList<QByteArray> visibleRoles = view->visibleRoles();
 870             if (action->isChecked()) {
 871                 visibleRoles.append(selectedRole);
 872             } else {
 873                 visibleRoles.removeOne(selectedRole);
 874             }
 875
 876             view->setVisibleRoles(visibleRoles);
 877             props.setVisibleRoles(visibleRoles);
 878
 879             QList<int> columnWidths;
 880             if (!header->automaticColumnResizing()) {
 881                 foreach (const QByteArray& role, view->visibleRoles()) {
 882                     columnWidths.append(header->columnWidth(role));
 883                 }
 884             }
 885             props.setHeaderColumnWidths(columnWidths);
 886         }
 887     }
 888
 889     delete menu;
 890 }
 891
 892 void DolphinView::slotHeaderColumnWidthChanged(const QByteArray& role, qreal current, qreal previous)
 893 {
 894     Q_UNUSED(previous);
 895
 896     const QList<QByteArray> visibleRoles = m_container->visibleRoles();
 897
 898     ViewProperties props(url());
 899     QList<int> columnWidths = props.headerColumnWidths();
 900     if (columnWidths.count() != visibleRoles.count()) {
 901         columnWidths.clear();
 902         columnWidths.reserve(visibleRoles.count());
 903         const KItemListHeader* header = m_container->controller()->view()->header();
 904         foreach (const QByteArray& role, visibleRoles) {
 905             const int width = header->columnWidth(role);
 906             columnWidths.append(width);
 907         }
 908     }
 909
 910     const int roleIndex = visibleRoles.indexOf(role);
 911     Q_ASSERT(roleIndex >= 0 && roleIndex < columnWidths.count());
 912     columnWidths[roleIndex] = current;
 913
 914     props.setHeaderColumnWidths(columnWidths);
 915 }
 916
 917 void DolphinView::slotItemHovered(int index)
 918 {
 919     const KFileItem item = fileItemModel()->fileItem(index);
 920
 921     if (GeneralSettings::showToolTips() && !m_dragging) {
 922         QRectF itemRect = m_container->controller()->view()->itemContextRect(index);
 923         const QPoint pos = m_container->mapToGlobal(itemRect.topLeft().toPoint());
 924         itemRect.moveTo(pos);
 925
 926         m_toolTipManager->showToolTip(item, itemRect);
 927     }
 928
 929     emit requestItemInfo(item);
 930 }
 931
 932 void DolphinView::slotItemUnhovered(int index)
 933 {
 934     Q_UNUSED(index);
 935     hideToolTip();
 936     emit requestItemInfo(KFileItem());
 937 }
 938
 939 void DolphinView::slotItemDropEvent(int index, QGraphicsSceneDragDropEvent* event)
 940 {
 941     KUrl destUrl;
 942     KFileItem destItem = fileItemModel()->fileItem(index);
 943     if (destItem.isNull() || (!destItem.isDir() && !destItem.isDesktopFile())) {
 944         // Use the URL of the view as drop target if the item is no directory
 945         // or desktop-file
 946         destItem = fileItemModel()->rootItem();
 947         destUrl = url();
 948     } else {
 949         // The item represents a directory or desktop-file
 950         destUrl = destItem.url();
 951     }
 952
 953     QDropEvent dropEvent(event->pos().toPoint(),
 954                          event->possibleActions(),
 955                          event->mimeData(),
 956                          event->buttons(),
 957                          event->modifiers());
 958
 959     const QString error = DragAndDropHelper::dropUrls(destItem, destUrl, &dropEvent);
 960     if (!error.isEmpty()) {
 961         emit errorMessage(error);
 962     }
 963
 964     if (destUrl == url()) {
 965         // Mark the dropped urls as selected.
 966         markPastedUrlsAsSelected(event->mimeData());
 967     }
 968 }
 969
 970 void DolphinView::slotModelChanged(KItemModelBase* current, KItemModelBase* previous)
 971 {
 972     if (previous != 0) {
 973         disconnect(previous, SIGNAL(directoryLoadingCompleted()), this, SLOT(slotDirectoryLoadingCompleted()));
 974     }
 975
 976     Q_ASSERT(qobject_cast<KFileItemModel*>(current));
 977     connect(current, SIGNAL(loadingCompleted()), this, SLOT(slotDirectoryLoadingCompleted()));
 978
 979     KFileItemModel* fileItemModel = static_cast<KFileItemModel*>(current);
 980     m_versionControlObserver->setModel(fileItemModel);
 981 }
 982
 983 void DolphinView::slotMouseButtonPressed(int itemIndex, Qt::MouseButtons buttons)
 984 {
 985     hideToolTip();
 986
 987     if (itemIndex < 0) {
 988         // Trigger the history navigation only when clicking on the viewport:
 989         // Above an item the XButtons provide a simple way to select items in
 990         // the singleClick mode.
 991         if (buttons & Qt::XButton1) {
 992             emit goBackRequested();
 993         } else if (buttons & Qt::XButton2) {
 994             emit goForwardRequested();
 995         }
 996     }
 997 }
 998
 999 void DolphinView::slotSelectionChanged(const QSet<int>& current, const QSet<int>& previous)
1000 {
1001     const int currentCount = current.count();
1002     const int previousCount = previous.count();
1003     const bool selectionStateChanged = (currentCount == 0 && previousCount  > 0) ||
1004                                        (currentCount >  0 && previousCount == 0);
1005
1006     // If nothing has been selected before and something got selected (or if something
1007     // was selected before and now nothing is selected) the selectionChangedSignal must
1008     // be emitted asynchronously as fast as possible to update the edit-actions.
1009     m_selectionChangedTimer->setInterval(selectionStateChanged ? 0 : 300);
1010     m_selectionChangedTimer->start();
1011 }
1012
1013 void DolphinView::emitSelectionChangedSignal()
1014 {
1015     m_selectionChangedTimer->stop();
1016     emit selectionChanged(selectedItems());
1017 }
1018
1019 void DolphinView::updateSortRole(const QByteArray& role)
1020 {
1021     ViewProperties props(url());
1022     props.setSortRole(role);
1023
1024     KItemModelBase* model = m_container->controller()->model();
1025     model->setSortRole(role);
1026
1027     emit sortRoleChanged(role);
1028 }
1029
1030 void DolphinView::updateSortOrder(Qt::SortOrder order)
1031 {
1032     ViewProperties props(url());
1033     props.setSortOrder(order);
1034
1035     KItemModelBase* model = fileItemModel();
1036     model->setSortOrder(order);
1037
1038     emit sortOrderChanged(order);
1039 }
1040
1041 void DolphinView::updateSortFoldersFirst(bool foldersFirst)
1042 {
1043     ViewProperties props(url());
1044     props.setSortFoldersFirst(foldersFirst);
1045
1046     KFileItemModel* model = fileItemModel();
1047     model->setSortDirectoriesFirst(foldersFirst);
1048
1049     emit sortFoldersFirstChanged(foldersFirst);
1050 }
1051
1052 QPair<bool, QString> DolphinView::pasteInfo() const
1053 {
1054     return KonqOperations::pasteInfo(url());
1055 }
1056
1057 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
1058 {
1059     m_tabsForFiles = tabsForFiles;
1060 }
1061
1062 bool DolphinView::isTabsForFilesEnabled() const
1063 {
1064     return m_tabsForFiles;
1065 }
1066
1067 bool DolphinView::itemsExpandable() const
1068 {
1069     return m_mode == DetailsView;
1070 }
1071
1072 void DolphinView::restoreState(QDataStream& stream)
1073 {
1074     // Restore the current item that had the keyboard focus
1075     stream >> m_currentItemUrl;
1076
1077     // Restore the view position
1078     stream >> m_restoredContentsPosition;
1079
1080     // Restore expanded folders (only relevant for the details view - will be ignored by the view in other view modes)
1081     QSet<KUrl> urls;
1082     stream >> urls;
1083     fileItemModel()->restoreExpandedDirectories(urls);
1084 }
1085
1086 void DolphinView::saveState(QDataStream& stream)
1087 {
1088     // Save the current item that has the keyboard focus
1089     const int currentIndex = m_container->controller()->selectionManager()->currentItem();
1090     if (currentIndex != -1) {
1091         KFileItem item = fileItemModel()->fileItem(currentIndex);
1092         Q_ASSERT(!item.isNull()); // If the current index is valid a item must exist
1093         KUrl currentItemUrl = item.url();
1094         stream << currentItemUrl;
1095     } else {
1096         stream << KUrl();
1097     }
1098
1099     // Save view position
1100     const qreal x = m_container->horizontalScrollBar()->value();
1101     const qreal y = m_container->verticalScrollBar()->value();
1102     stream << QPoint(x, y);
1103
1104     // Save expanded folders (only relevant for the details view - the set will be empty in other view modes)
1105     stream << fileItemModel()->expandedDirectories();
1106 }
1107
1108 KFileItem DolphinView::rootItem() const
1109 {
1110     return fileItemModel()->rootItem();
1111 }
1112
1113 void DolphinView::observeCreatedItem(const KUrl& url)
1114 {
1115     m_createdItemUrl = url;
1116     //connect(m_dirModel, SIGNAL(rowsInserted(QModelIndex,int,int)),
1117     //        this, SLOT(selectAndScrollToCreatedItem()));
1118 }
1119
1120 void DolphinView::selectAndScrollToCreatedItem()
1121 {
1122     /*const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_createdItemUrl);
1123     if (dirIndex.isValid()) {
1124         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1125         QAbstractItemView* view = m_viewAccessor.itemView();
1126         if (view) {
1127             view->setCurrentIndex(proxyIndex);
1128         }
1129     }
1130
1131     disconnect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(QModelIndex,int,int)),
1132                this, SLOT(selectAndScrollToCreatedItem()));*/
1133     m_createdItemUrl = KUrl();
1134 }
1135
1136 void DolphinView::slotDirectoryRedirection(const KUrl& oldUrl, const KUrl& newUrl)
1137 {
1138     if (oldUrl.equals(url(), KUrl::CompareWithoutTrailingSlash)) {
1139         emit redirection(oldUrl, newUrl);
1140         m_url = newUrl; // #186947
1141     }
1142 }
1143
1144 void DolphinView::updateViewState()
1145 {
1146     if (m_currentItemUrl != KUrl()) {
1147         KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
1148         const int currentIndex = fileItemModel()->index(m_currentItemUrl);
1149         if (currentIndex != -1) {
1150             selectionManager->setCurrentItem(currentIndex);
1151         } else {
1152             selectionManager->setCurrentItem(0);
1153         }
1154         m_currentItemUrl = KUrl();
1155     }
1156
1157     if (!m_restoredContentsPosition.isNull()) {
1158         const int x = m_restoredContentsPosition.x();
1159         const int y = m_restoredContentsPosition.y();
1160         m_restoredContentsPosition = QPoint();
1161
1162         m_container->horizontalScrollBar()->setValue(x);
1163         m_container->verticalScrollBar()->setValue(y);
1164     }
1165
1166     if (!m_selectedUrls.isEmpty()) {
1167         clearSelection();
1168
1169         KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
1170         QSet<int> selectedItems = selectionManager->selectedItems();
1171         const KFileItemModel* model = fileItemModel();
1172
1173         foreach (const KUrl& url, m_selectedUrls) {
1174             const int index = model->index(url);
1175             if (index >= 0) {
1176                 selectedItems.insert(index);
1177             }
1178         }
1179
1180         selectionManager->setSelectedItems(selectedItems);
1181         m_selectedUrls.clear();
1182     }
1183 }
1184
1185 void DolphinView::hideToolTip()
1186 {
1187     if (GeneralSettings::showToolTips()) {
1188         m_toolTipManager->hideToolTip();
1189     }
1190 }
1191
1192 void DolphinView::calculateItemCount(int& fileCount,
1193                                      int& folderCount,
1194                                      KIO::filesize_t& totalFileSize) const
1195 {
1196     const KFileItemModel* model = fileItemModel();
1197     const int itemCount = model->count();
1198     for (int i = 0; i < itemCount; ++i) {
1199         const KFileItem item = model->fileItem(i);
1200         if (item.isDir()) {
1201             ++folderCount;
1202         } else {
1203             ++fileCount;
1204             totalFileSize += item.size();
1205         }
1206     }
1207 }
1208
1209 void DolphinView::showHoverInformation(const KFileItem& item)
1210 {
1211     emit requestItemInfo(item);
1212 }
1213
1214 void DolphinView::clearHoverInformation()
1215 {
1216     emit requestItemInfo(KFileItem());
1217 }
1218
1219 void DolphinView::slotDeleteFileFinished(KJob* job)
1220 {
1221     if (job->error() == 0) {
1222         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1223     } else if (job->error() != KIO::ERR_USER_CANCELED) {
1224         emit errorMessage(job->errorString());
1225     }
1226 }
1227
1228 void DolphinView::slotDirectoryLoadingStarted()
1229 {
1230     // Disable the writestate temporary until it can be determined in a fast way
1231     // in DolphinView::slotLoadingCompleted()
1232     if (m_isFolderWritable) {
1233         m_isFolderWritable = false;
1234         emit writeStateChanged(m_isFolderWritable);
1235     }
1236
1237     emit directoryLoadingStarted();
1238 }
1239
1240 void DolphinView::slotDirectoryLoadingCompleted()
1241 {
1242     // Update the view-state. This has to be done asynchronously
1243     // because the view might not be in its final state yet.
1244     QTimer::singleShot(0, this, SLOT(updateViewState()));
1245
1246     emit directoryLoadingCompleted();
1247
1248     updateWritableState();
1249 }
1250
1251 void DolphinView::slotItemsChanged()
1252 {
1253     m_assureVisibleCurrentIndex = false;
1254 }
1255
1256 void DolphinView::slotSortOrderChangedByHeader(Qt::SortOrder current, Qt::SortOrder previous)
1257 {
1258     Q_UNUSED(previous);
1259     Q_ASSERT(fileItemModel()->sortOrder() == current);
1260
1261     ViewProperties props(url());
1262     props.setSortOrder(current);
1263
1264     emit sortOrderChanged(current);
1265 }
1266
1267 void DolphinView::slotSortRoleChangedByHeader(const QByteArray& current, const QByteArray& previous)
1268 {
1269     Q_UNUSED(previous);
1270     Q_ASSERT(fileItemModel()->sortRole() == current);
1271
1272     ViewProperties props(url());
1273     props.setSortRole(current);
1274
1275     emit sortRoleChanged(current);
1276 }
1277
1278 void DolphinView::slotVisibleRolesChangedByHeader(const QList<QByteArray>& current,
1279                                                   const QList<QByteArray>& previous)
1280 {
1281     Q_UNUSED(previous);
1282     Q_ASSERT(m_container->controller()->view()->visibleRoles() == current);
1283
1284     const QList<QByteArray> previousVisibleRoles = m_visibleRoles;
1285
1286     m_visibleRoles = current;
1287
1288     ViewProperties props(url());
1289     props.setVisibleRoles(m_visibleRoles);
1290
1291     emit visibleRolesChanged(m_visibleRoles, previousVisibleRoles);
1292 }
1293
1294 KFileItemModel* DolphinView::fileItemModel() const
1295 {
1296     return static_cast<KFileItemModel*>(m_container->controller()->model());
1297 }
1298
1299 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1300 {
1301     if (!url.isValid()) {
1302         const QString location(url.pathOrUrl());
1303         if (location.isEmpty()) {
1304             emit errorMessage(i18nc("@info:status", "The location is empty."));
1305         } else {
1306             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1307         }
1308         return;
1309     }
1310
1311     KFileItemModel* model = fileItemModel();
1312     if (reload) {
1313         model->refreshDirectory(url);
1314     } else {
1315         model->loadDirectory(url);
1316     }
1317 }
1318
1319 void DolphinView::applyViewProperties()
1320 {
1321     m_container->beginTransaction();
1322
1323     const ViewProperties props(url());
1324     KFileItemModel* model = fileItemModel();
1325
1326     const Mode mode = props.viewMode();
1327     if (m_mode != mode) {
1328         const Mode previousMode = m_mode;
1329         m_mode = mode;
1330
1331         // Changing the mode might result in changing
1332         // the zoom level. Remember the old zoom level so
1333         // that zoomLevelChanged() can get emitted.
1334         const int oldZoomLevel = m_container->zoomLevel();
1335
1336         switch (m_mode) {
1337         case IconsView:   m_container->setItemLayout(KFileItemListView::IconsLayout); break;
1338         case CompactView: m_container->setItemLayout(KFileItemListView::CompactLayout); break;
1339         case DetailsView: m_container->setItemLayout(KFileItemListView::DetailsLayout); break;
1340         default: Q_ASSERT(false); break;
1341         }
1342
1343         emit modeChanged(m_mode, previousMode);
1344
1345         if (m_container->zoomLevel() != oldZoomLevel) {
1346             emit zoomLevelChanged(m_container->zoomLevel(), oldZoomLevel);
1347         }
1348     }
1349
1350     const bool hiddenFilesShown = props.hiddenFilesShown();
1351     if (hiddenFilesShown != model->showHiddenFiles()) {
1352         model->setShowHiddenFiles(hiddenFilesShown);
1353         emit hiddenFilesShownChanged(hiddenFilesShown);
1354     }
1355
1356     const bool groupedSorting = props.groupedSorting();
1357     if (groupedSorting != model->groupedSorting()) {
1358         model->setGroupedSorting(groupedSorting);
1359         emit groupedSortingChanged(groupedSorting);
1360     }
1361
1362     const QByteArray sortRole = props.sortRole();
1363     if (sortRole != model->sortRole()) {
1364         model->setSortRole(sortRole);
1365         emit sortRoleChanged(sortRole);
1366     }
1367
1368     const Qt::SortOrder sortOrder = props.sortOrder();
1369     if (sortOrder != model->sortOrder()) {
1370         model->setSortOrder(sortOrder);
1371         emit sortOrderChanged(sortOrder);
1372     }
1373
1374     const bool sortFoldersFirst = props.sortFoldersFirst();
1375     if (sortFoldersFirst != model->sortDirectoriesFirst()) {
1376         model->setSortDirectoriesFirst(sortFoldersFirst);
1377         emit sortFoldersFirstChanged(sortFoldersFirst);
1378     }
1379
1380     const QList<QByteArray> visibleRoles = props.visibleRoles();
1381     if (visibleRoles != m_visibleRoles) {
1382         const QList<QByteArray> previousVisibleRoles = m_visibleRoles;
1383         m_visibleRoles = visibleRoles;
1384         m_container->setVisibleRoles(visibleRoles);
1385         emit visibleRolesChanged(m_visibleRoles, previousVisibleRoles);
1386     }
1387
1388     const bool previewsShown = props.previewsShown();
1389     if (previewsShown != m_container->previewsShown()) {
1390         const int oldZoomLevel = zoomLevel();
1391
1392         m_container->setPreviewsShown(previewsShown);
1393         emit previewsShownChanged(previewsShown);
1394
1395         // Changing the preview-state might result in a changed zoom-level
1396         if (oldZoomLevel != zoomLevel()) {
1397             emit zoomLevelChanged(zoomLevel(), oldZoomLevel);
1398         }
1399     }
1400
1401     KItemListView* itemListView = m_container->controller()->view();
1402     if (itemListView->isHeaderVisible()) {
1403         KItemListHeader* header = itemListView->header();
1404         const QList<int> headerColumnWidths = props.headerColumnWidths();
1405         const int rolesCount = m_visibleRoles.count();
1406         if (headerColumnWidths.count() == rolesCount) {
1407             header->setAutomaticColumnResizing(false);
1408
1409             QHash<QByteArray, qreal> columnWidths;
1410             for (int i = 0; i < rolesCount; ++i) {
1411                 columnWidths.insert(m_visibleRoles[i], headerColumnWidths[i]);
1412             }
1413             header->setColumnWidths(columnWidths);
1414         } else {
1415             header->setAutomaticColumnResizing(true);
1416         }
1417     }
1418
1419     m_container->endTransaction();
1420 }
1421
1422 void DolphinView::pasteToUrl(const KUrl& url)
1423 {
1424     markPastedUrlsAsSelected(QApplication::clipboard()->mimeData());
1425     KonqOperations::doPaste(this, url);
1426 }
1427
1428 KUrl::List DolphinView::simplifiedSelectedUrls() const
1429 {
1430     KUrl::List urls;
1431
1432     const KFileItemList items = selectedItems();
1433     foreach (const KFileItem &item, items) {
1434         urls.append(item.url());
1435     }
1436
1437     if (itemsExpandable()) {
1438         // TODO: Check if we still need KDirModel for this in KDE 5.0
1439         urls = KDirModel::simplifiedUrlList(urls);
1440     }
1441
1442     return urls;
1443 }
1444
1445 QMimeData* DolphinView::selectionMimeData() const
1446 {
1447     const KFileItemModel* model = fileItemModel();
1448     const KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
1449     const QSet<int> selectedIndexes = selectionManager->selectedItems();
1450
1451     return model->createMimeData(selectedIndexes);
1452 }
1453
1454 void DolphinView::markPastedUrlsAsSelected(const QMimeData* mimeData)
1455 {
1456     const KUrl::List sourceUrls = KUrl::List::fromMimeData(mimeData);
1457     KUrl::List destUrls;
1458     foreach (const KUrl& source, sourceUrls) {
1459         KUrl destination(url().url() + "/" + source.fileName());
1460         destUrls << destination;
1461     }
1462     markUrlsAsSelected(destUrls);
1463 }
1464
1465 void DolphinView::updateWritableState()
1466 {
1467     const bool wasFolderWritable = m_isFolderWritable;
1468     m_isFolderWritable = true;
1469
1470     const KFileItem item = fileItemModel()->rootItem();
1471     if (!item.isNull()) {
1472         KFileItemListProperties capabilities(KFileItemList() << item);
1473         m_isFolderWritable = capabilities.supportsWriting();
1474     }
1475     if (m_isFolderWritable != wasFolderWritable) {
1476         emit writeStateChanged(m_isFolderWritable);
1477     }
1478 }
1479
1480 #include "dolphinview.moc"