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 <KDirLister>
  39 #include <KDirModel>
  40 #include <KIconEffect>
  41 #include <KFileItem>
  42 #include <KFileItemListProperties>
  43 #include <KLocale>
  44 #include <kitemviews/kfileitemmodel.h>
  45 #include <kitemviews/kfileitemlistview.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/NetAccess>
  52 #include <KIO/PreviewJob>
  53 #include <KJob>
  54 #include <KMenu>
  55 #include <KMessageBox>
  56 #include <konq_fileitemcapabilities.h>
  57 #include <konq_operations.h>
  58 #include <konqmimedata.h>
  59 #include <KToggleAction>
  60 #include <KUrl>
  61
  62 #include "dolphindirlister.h"
  63 #include "dolphinnewfilemenuobserver.h"
  64 #include "dolphin_detailsmodesettings.h"
  65 #include "dolphin_generalsettings.h"
  66 #include "dolphinitemlistcontainer.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_mode(DolphinView::IconsView),
  92     m_visibleRoles(),
  93     m_topLayout(0),
  94     m_dirLister(0),
  95     m_container(0),
  96     m_toolTipManager(0),
  97     m_selectionChangedTimer(0),
  98     m_currentItemUrl(),
  99     m_restoredContentsPosition(),
 100     m_createdItemUrl(),
 101     m_selectedUrls(),
 102     m_versionControlObserver(0)
 103 {
 104     m_topLayout = new QVBoxLayout(this);
 105     m_topLayout->setSpacing(0);
 106     m_topLayout->setMargin(0);
 107
 108     // When a new item has been created by the "Create New..." menu, the item should
 109     // get selected and it must be assured that the item will get visible. As the
 110     // creation is done asynchronously, several signals must be checked:
 111     connect(&DolphinNewFileMenuObserver::instance(), SIGNAL(itemCreated(KUrl)),
 112             this, SLOT(observeCreatedItem(KUrl)));
 113
 114     m_selectionChangedTimer = new QTimer(this);
 115     m_selectionChangedTimer->setSingleShot(true);
 116     m_selectionChangedTimer->setInterval(300);
 117     connect(m_selectionChangedTimer, SIGNAL(timeout()),
 118             this, SLOT(emitSelectionChangedSignal()));
 119
 120     m_dirLister = new DolphinDirLister(this);
 121     m_dirLister->setAutoUpdate(true);
 122     m_dirLister->setDelayedMimeTypes(true);
 123
 124     connect(m_dirLister, SIGNAL(redirection(KUrl,KUrl)), this, SLOT(slotRedirection(KUrl,KUrl)));
 125     connect(m_dirLister, SIGNAL(started(KUrl)),          this, SLOT(slotDirListerStarted(KUrl)));
 126     connect(m_dirLister, SIGNAL(refreshItems(QList<QPair<KFileItem,KFileItem> >)),
 127             this, SLOT(slotRefreshItems()));
 128
 129     connect(m_dirLister, SIGNAL(clear()),                     this, SIGNAL(itemCountChanged()));
 130     connect(m_dirLister, SIGNAL(newItems(KFileItemList)),     this, SIGNAL(itemCountChanged()));
 131     connect(m_dirLister, SIGNAL(infoMessage(QString)),        this, SIGNAL(infoMessage(QString)));
 132     connect(m_dirLister, SIGNAL(errorMessage(QString)),       this, SIGNAL(infoMessage(QString)));
 133     connect(m_dirLister, SIGNAL(percent(int)),                this, SIGNAL(pathLoadingProgress(int)));
 134     connect(m_dirLister, SIGNAL(urlIsFileError(KUrl)),        this, SIGNAL(urlIsFileError(KUrl)));
 135     connect(m_dirLister, SIGNAL(itemsDeleted(KFileItemList)), this, SIGNAL(itemCountChanged()));
 136
 137     m_container = new DolphinItemListContainer(m_dirLister, this);
 138     m_container->setVisibleRoles(QList<QByteArray>() << "name");
 139     m_container->installEventFilter(this);
 140     setFocusProxy(m_container);
 141     connect(m_container->horizontalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(hideToolTip()));
 142     connect(m_container->verticalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(hideToolTip()));
 143
 144     KItemListController* controller = m_container->controller();
 145     controller->setSelectionBehavior(KItemListController::MultiSelection);
 146     connect(controller, SIGNAL(itemActivated(int)), this, SLOT(slotItemActivated(int)));
 147     connect(controller, SIGNAL(itemsActivated(QSet<int>)), this, SLOT(slotItemsActivated(QSet<int>)));
 148     connect(controller, SIGNAL(itemMiddleClicked(int)), this, SLOT(slotItemMiddleClicked(int)));
 149     connect(controller, SIGNAL(itemContextMenuRequested(int,QPointF)), this, SLOT(slotItemContextMenuRequested(int,QPointF)));
 150     connect(controller, SIGNAL(viewContextMenuRequested(QPointF)), this, SLOT(slotViewContextMenuRequested(QPointF)));
 151     connect(controller, SIGNAL(headerContextMenuRequested(QPointF)), this, SLOT(slotHeaderContextMenuRequested(QPointF)));
 152     connect(controller, SIGNAL(mouseButtonPressed(int,Qt::MouseButtons)), this, SLOT(slotMouseButtonPressed(int,Qt::MouseButtons)));
 153     connect(controller, SIGNAL(itemHovered(int)), this, SLOT(slotItemHovered(int)));
 154     connect(controller, SIGNAL(itemUnhovered(int)), this, SLOT(slotItemUnhovered(int)));
 155     connect(controller, SIGNAL(itemDropEvent(int,QGraphicsSceneDragDropEvent*)), this, SLOT(slotItemDropEvent(int,QGraphicsSceneDragDropEvent*)));
 156     connect(controller, SIGNAL(modelChanged(KItemModelBase*,KItemModelBase*)), this, SLOT(slotModelChanged(KItemModelBase*,KItemModelBase*)));
 157
 158     KFileItemModel* model = fileItemModel();
 159     if (model) {
 160         connect(model, SIGNAL(loadingCompleted()), this, SLOT(slotLoadingCompleted()));
 161     }
 162
 163     KItemListView* view = controller->view();
 164     view->installEventFilter(this);
 165     connect(view, SIGNAL(sortOrderChanged(Qt::SortOrder,Qt::SortOrder)),
 166             this, SLOT(slotSortOrderChangedByHeader(Qt::SortOrder,Qt::SortOrder)));
 167     connect(view, SIGNAL(sortRoleChanged(QByteArray,QByteArray)),
 168             this, SLOT(slotSortRoleChangedByHeader(QByteArray,QByteArray)));
 169     connect(view, SIGNAL(visibleRolesChanged(QList<QByteArray>,QList<QByteArray>)),
 170             this, SLOT(slotVisibleRolesChangedByHeader(QList<QByteArray>,QList<QByteArray>)));
 171     connect(view->header(), SIGNAL(columnWidthChanged(QByteArray,qreal,qreal)),
 172             this, SLOT(slotHeaderColumnWidthChanged(QByteArray,qreal,qreal)));
 173
 174     KItemListSelectionManager* selectionManager = controller->selectionManager();
 175     connect(selectionManager, SIGNAL(selectionChanged(QSet<int>,QSet<int>)),
 176             this, SLOT(slotSelectionChanged(QSet<int>,QSet<int>)));
 177
 178     m_toolTipManager = new ToolTipManager(this);
 179
 180     m_versionControlObserver = new VersionControlObserver(this);
 181     m_versionControlObserver->setModel(model);
 182     connect(m_versionControlObserver, SIGNAL(infoMessage(QString)), this, SIGNAL(infoMessage(QString)));
 183     connect(m_versionControlObserver, SIGNAL(errorMessage(QString)), this, SIGNAL(errorMessage(QString)));
 184     connect(m_versionControlObserver, SIGNAL(operationCompletedMessage(QString)), this, SIGNAL(operationCompletedMessage(QString)));
 185
 186     applyViewProperties();
 187     m_topLayout->addWidget(m_container);
 188
 189     loadDirectory(url);
 190 }
 191
 192 DolphinView::~DolphinView()
 193 {
 194 }
 195
 196 KUrl DolphinView::url() const
 197 {
 198     return m_url;
 199 }
 200
 201 void DolphinView::setActive(bool active)
 202 {
 203     if (active == m_active) {
 204         return;
 205     }
 206
 207     m_active = active;
 208
 209     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 210     if (!active) {
 211         color.setAlpha(150);
 212     }
 213
 214     QWidget* viewport = m_container->viewport();
 215     if (viewport) {
 216         QPalette palette;
 217         palette.setColor(viewport->backgroundRole(), color);
 218         viewport->setPalette(palette);
 219     }
 220
 221     update();
 222
 223     if (active) {
 224         m_container->setFocus();
 225         emit activated();
 226         emit writeStateChanged(m_isFolderWritable);
 227     }
 228 }
 229
 230 bool DolphinView::isActive() const
 231 {
 232     return m_active;
 233 }
 234
 235 void DolphinView::setMode(Mode mode)
 236 {
 237     if (mode != m_mode) {
 238         ViewProperties props(url());
 239         props.setViewMode(mode);
 240         props.save();
 241
 242         applyViewProperties();
 243     }
 244 }
 245
 246 DolphinView::Mode DolphinView::mode() const
 247 {
 248     return m_mode;
 249 }
 250
 251 void DolphinView::setPreviewsShown(bool show)
 252 {
 253     if (previewsShown() == show) {
 254         return;
 255     }
 256
 257     ViewProperties props(url());
 258     props.setPreviewsShown(show);
 259
 260     m_container->setPreviewsShown(show);
 261     emit previewsShownChanged(show);
 262 }
 263
 264 bool DolphinView::previewsShown() const
 265 {
 266     return m_container->previewsShown();
 267 }
 268
 269 void DolphinView::setHiddenFilesShown(bool show)
 270 {
 271     if (m_dirLister->showingDotFiles() == show) {
 272         return;
 273     }
 274
 275     const KFileItemList itemList = selectedItems();
 276     m_selectedUrls.clear();
 277     m_selectedUrls = itemList.urlList();
 278
 279     ViewProperties props(url());
 280     props.setHiddenFilesShown(show);
 281
 282     fileItemModel()->setShowHiddenFiles(show);
 283     emit hiddenFilesShownChanged(show);
 284 }
 285
 286 bool DolphinView::hiddenFilesShown() const
 287 {
 288     return m_dirLister->showingDotFiles();
 289 }
 290
 291 void DolphinView::setGroupedSorting(bool grouped)
 292 {
 293     if (grouped == groupedSorting()) {
 294         return;
 295     }
 296
 297     ViewProperties props(url());
 298     props.setGroupedSorting(grouped);
 299     props.save();
 300
 301     m_container->controller()->model()->setGroupedSorting(grouped);
 302
 303     emit groupedSortingChanged(grouped);
 304 }
 305
 306 bool DolphinView::groupedSorting() const
 307 {
 308     return fileItemModel()->groupedSorting();
 309 }
 310
 311 KFileItemList DolphinView::items() const
 312 {
 313     return m_dirLister->items();
 314 }
 315
 316 KFileItemList DolphinView::selectedItems() const
 317 {
 318     const KFileItemModel* model = fileItemModel();
 319     const KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 320     const QSet<int> selectedIndexes = selectionManager->selectedItems();
 321
 322     KFileItemList selectedItems;
 323     QSetIterator<int> it(selectedIndexes);
 324     while (it.hasNext()) {
 325         const int index = it.next();
 326         selectedItems.append(model->fileItem(index));
 327     }
 328     return selectedItems;
 329 }
 330
 331 int DolphinView::selectedItemsCount() const
 332 {
 333     const KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 334     return selectionManager->selectedItems().count();
 335 }
 336
 337 void DolphinView::markUrlsAsSelected(const QList<KUrl>& urls)
 338 {
 339     m_selectedUrls = urls;
 340 }
 341
 342 void DolphinView::markUrlAsCurrent(const KUrl& url)
 343 {
 344     m_currentItemUrl = url;
 345 }
 346
 347 void DolphinView::setItemSelectionEnabled(const QRegExp& pattern, bool enabled)
 348 {
 349     const KItemListSelectionManager::SelectionMode mode = enabled
 350                                                         ? KItemListSelectionManager::Select
 351                                                         : KItemListSelectionManager::Deselect;
 352     const KFileItemModel* model = fileItemModel();
 353     KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 354
 355     for (int index = 0; index < model->count(); index++) {
 356         const KFileItem item = model->fileItem(index);
 357         if (pattern.exactMatch(item.text())) {
 358             // An alternative approach would be to store the matching items in a QSet<int> and
 359             // select them in one go after the loop, but we'd need a new function
 360             // KItemListSelectionManager::setSelected(QSet<int>, SelectionMode mode)
 361             // for that.
 362             selectionManager->setSelected(index, 1, mode);
 363         }
 364     }
 365 }
 366
 367 void DolphinView::setZoomLevel(int level)
 368 {
 369     const int oldZoomLevel = zoomLevel();
 370     m_container->setZoomLevel(level);
 371     if (zoomLevel() != oldZoomLevel) {
 372         emit zoomLevelChanged(zoomLevel(), oldZoomLevel);
 373     }
 374 }
 375
 376 int DolphinView::zoomLevel() const
 377 {
 378     return m_container->zoomLevel();
 379 }
 380
 381 void DolphinView::setSortRole(const QByteArray& role)
 382 {
 383     if (role != sortRole()) {
 384         updateSortRole(role);
 385     }
 386 }
 387
 388 QByteArray DolphinView::sortRole() const
 389 {
 390     const KItemModelBase* model = m_container->controller()->model();
 391     return model->sortRole();
 392 }
 393
 394 void DolphinView::setSortOrder(Qt::SortOrder order)
 395 {
 396     if (sortOrder() != order) {
 397         updateSortOrder(order);
 398     }
 399 }
 400
 401 Qt::SortOrder DolphinView::sortOrder() const
 402 {
 403     KItemModelBase* model = fileItemModel();
 404     return model->sortOrder();
 405 }
 406
 407 void DolphinView::setSortFoldersFirst(bool foldersFirst)
 408 {
 409     if (sortFoldersFirst() != foldersFirst) {
 410         updateSortFoldersFirst(foldersFirst);
 411     }
 412 }
 413
 414 bool DolphinView::sortFoldersFirst() const
 415 {
 416     KFileItemModel* model = fileItemModel();
 417     return model->sortFoldersFirst();
 418 }
 419
 420 void DolphinView::setVisibleRoles(const QList<QByteArray>& roles)
 421 {
 422     const QList<QByteArray> previousRoles = roles;
 423
 424     ViewProperties props(url());
 425     props.setVisibleRoles(roles);
 426
 427     m_visibleRoles = roles;
 428     m_container->setVisibleRoles(roles);
 429
 430     emit visibleRolesChanged(m_visibleRoles, previousRoles);
 431 }
 432
 433 QList<QByteArray> DolphinView::visibleRoles() const
 434 {
 435     return m_visibleRoles;
 436 }
 437
 438 void DolphinView::reload()
 439 {
 440     QByteArray viewState;
 441     QDataStream saveStream(&viewState, QIODevice::WriteOnly);
 442     saveState(saveStream);
 443
 444     const KFileItemList itemList = selectedItems();
 445     m_selectedUrls.clear();
 446     m_selectedUrls = itemList.urlList();
 447
 448     setUrl(url());
 449     loadDirectory(url(), true);
 450
 451     QDataStream restoreStream(viewState);
 452     restoreState(restoreStream);
 453 }
 454
 455 void DolphinView::stopLoading()
 456 {
 457     m_dirLister->stop();
 458 }
 459
 460 void DolphinView::readSettings()
 461 {
 462     const int oldZoomLevel = m_container->zoomLevel();
 463
 464     GeneralSettings::self()->readConfig();
 465     m_container->readSettings();
 466     applyViewProperties();
 467
 468     const int newZoomLevel = m_container->zoomLevel();
 469     if (newZoomLevel != oldZoomLevel) {
 470         emit zoomLevelChanged(newZoomLevel, oldZoomLevel);
 471     }
 472 }
 473
 474 void DolphinView::writeSettings()
 475 {
 476     GeneralSettings::self()->writeConfig();
 477     m_container->writeSettings();
 478 }
 479
 480 void DolphinView::setNameFilter(const QString& nameFilter)
 481 {
 482     fileItemModel()->setNameFilter(nameFilter);
 483 }
 484
 485 QString DolphinView::nameFilter() const
 486 {
 487     return fileItemModel()->nameFilter();
 488 }
 489
 490 void DolphinView::calculateItemCount(int& fileCount,
 491                                      int& folderCount,
 492                                      KIO::filesize_t& totalFileSize) const
 493 {
 494     foreach (const KFileItem& item, m_dirLister->items()) {
 495         if (item.isDir()) {
 496             ++folderCount;
 497         } else {
 498             ++fileCount;
 499             totalFileSize += item.size();
 500         }
 501     }
 502 }
 503
 504 QString DolphinView::statusBarText() const
 505 {
 506     QString summary;
 507     QString foldersText;
 508     QString filesText;
 509
 510     int folderCount = 0;
 511     int fileCount = 0;
 512     KIO::filesize_t totalFileSize = 0;
 513
 514     if (hasSelection()) {
 515         // Give a summary of the status of the selected files
 516         const KFileItemList list = selectedItems();
 517         foreach (const KFileItem& item, list) {
 518             if (item.isDir()) {
 519                 ++folderCount;
 520             } else {
 521                 ++fileCount;
 522                 totalFileSize += item.size();
 523             }
 524         }
 525
 526         if (folderCount + fileCount == 1) {
 527             // If only one item is selected, show the filename
 528             filesText = i18nc("@info:status", "<filename>%1</filename> selected", list.first().text());
 529         } else {
 530             // At least 2 items are selected
 531             foldersText = i18ncp("@info:status", "1 Folder selected", "%1 Folders selected", folderCount);
 532             filesText = i18ncp("@info:status", "1 File selected", "%1 Files selected", fileCount);
 533         }
 534     } else {
 535         calculateItemCount(fileCount, folderCount, totalFileSize);
 536         foldersText = i18ncp("@info:status", "1 Folder", "%1 Folders", folderCount);
 537         filesText = i18ncp("@info:status", "1 File", "%1 Files", fileCount);
 538     }
 539
 540     if (fileCount > 0 && folderCount > 0) {
 541         summary = i18nc("@info:status folders, files (size)", "%1, %2 (%3)",
 542                         foldersText, filesText, fileSizeText(totalFileSize));
 543     } else if (fileCount > 0) {
 544         summary = i18nc("@info:status files (size)", "%1 (%2)", filesText, fileSizeText(totalFileSize));
 545     } else if (folderCount > 0) {
 546         summary = foldersText;
 547     }
 548
 549     return summary;
 550 }
 551
 552 QList<QAction*> DolphinView::versionControlActions(const KFileItemList& items) const
 553 {
 554     QList<QAction*> actions;
 555
 556     if (items.isEmpty()) {
 557         const KFileItem item = fileItemModel()->rootItem();
 558         actions = m_versionControlObserver->actions(KFileItemList() << item);
 559     } else {
 560         actions = m_versionControlObserver->actions(items);
 561     }
 562
 563     return actions;
 564 }
 565
 566 void DolphinView::setUrl(const KUrl& url)
 567 {
 568     if (url == m_url) {
 569         return;
 570     }
 571
 572     emit urlAboutToBeChanged(url);
 573     m_url = url;
 574
 575     hideToolTip();
 576
 577     // It is important to clear the items from the model before
 578     // applying the view properties, otherwise expensive operations
 579     // might be done on the existing items although they get cleared
 580     // anyhow afterwards by loadDirectory().
 581     fileItemModel()->clear();
 582     applyViewProperties();
 583     loadDirectory(url);
 584
 585     emit urlChanged(url);
 586 }
 587
 588 void DolphinView::selectAll()
 589 {
 590     KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 591     selectionManager->setSelected(0, fileItemModel()->count());
 592 }
 593
 594 void DolphinView::invertSelection()
 595 {
 596     KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 597     selectionManager->setSelected(0, fileItemModel()->count(), KItemListSelectionManager::Toggle);
 598 }
 599
 600 void DolphinView::clearSelection()
 601 {
 602     m_container->controller()->selectionManager()->clearSelection();
 603 }
 604
 605 void DolphinView::renameSelectedItems()
 606 {
 607     KFileItemList items = selectedItems();
 608     const int itemCount = items.count();
 609     if (itemCount < 1) {
 610         return;
 611     }
 612
 613     // TODO: The new view-engine introduced with Dolphin 2.0 does not support inline
 614     // renaming yet.
 615     /*if ((itemCount == 1) && DolphinSettings::instance().generalSettings()->renameInline()) {
 616         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForItem(items.first());
 617         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
 618         m_viewAccessor.itemView()->edit(proxyIndex);
 619     } else {*/
 620         RenameDialog* dialog = new RenameDialog(this, items);
 621         dialog->setAttribute(Qt::WA_DeleteOnClose);
 622         dialog->show();
 623         dialog->raise();
 624         dialog->activateWindow();
 625     //}
 626
 627     // assure that the current index remains visible when KDirLister
 628     // will notify the view about changed items
 629     m_assureVisibleCurrentIndex = true;
 630 }
 631
 632 void DolphinView::trashSelectedItems()
 633 {
 634     const KUrl::List list = simplifiedSelectedUrls();
 635     KonqOperations::del(this, KonqOperations::TRASH, list);
 636 }
 637
 638 void DolphinView::deleteSelectedItems()
 639 {
 640     const KUrl::List list = simplifiedSelectedUrls();
 641     const bool del = KonqOperations::askDeleteConfirmation(list,
 642                      KonqOperations::DEL,
 643                      KonqOperations::DEFAULT_CONFIRMATION,
 644                      this);
 645
 646     if (del) {
 647         KIO::Job* job = KIO::del(list);
 648         connect(job, SIGNAL(result(KJob*)),
 649                 this, SLOT(slotDeleteFileFinished(KJob*)));
 650     }
 651 }
 652
 653 void DolphinView::cutSelectedItems()
 654 {
 655     QMimeData* mimeData = selectionMimeData();
 656     KonqMimeData::addIsCutSelection(mimeData, true);
 657     QApplication::clipboard()->setMimeData(mimeData);
 658 }
 659
 660 void DolphinView::copySelectedItems()
 661 {
 662     QMimeData* mimeData = selectionMimeData();
 663     QApplication::clipboard()->setMimeData(mimeData);
 664 }
 665
 666 void DolphinView::paste()
 667 {
 668     pasteToUrl(url());
 669 }
 670
 671 void DolphinView::pasteIntoFolder()
 672 {
 673     const KFileItemList items = selectedItems();
 674     if ((items.count() == 1) && items.first().isDir()) {
 675         pasteToUrl(items.first().url());
 676     }
 677 }
 678
 679 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 680 {
 681     switch (event->type()) {
 682     case QEvent::FocusIn:
 683         if (watched == m_container) {
 684             setActive(true);
 685         }
 686         break;
 687
 688     case QEvent::GraphicsSceneDragEnter:
 689         if (watched == m_container->controller()->view()) {
 690             m_dragging = true;
 691         }
 692         break;
 693
 694     case QEvent::GraphicsSceneDragLeave:
 695         if (watched == m_container->controller()->view()) {
 696             m_dragging = false;
 697         }
 698         break;
 699
 700     case QEvent::GraphicsSceneDrop:
 701         if (watched == m_container->controller()->view()) {
 702             m_dragging = false;
 703         }
 704     default:
 705         break;
 706     }
 707
 708     return QWidget::eventFilter(watched, event);
 709 }
 710
 711 void DolphinView::wheelEvent(QWheelEvent* event)
 712 {
 713     if (event->modifiers().testFlag(Qt::ControlModifier)) {
 714         const int numDegrees = event->delta() / 8;
 715         const int numSteps = numDegrees / 15;
 716
 717         setZoomLevel(zoomLevel() + numSteps);
 718         event->accept();
 719     } else {
 720         event->ignore();
 721     }
 722 }
 723
 724 void DolphinView::hideEvent(QHideEvent* event)
 725 {
 726     hideToolTip();
 727     QWidget::hideEvent(event);
 728 }
 729
 730 void DolphinView::activate()
 731 {
 732     setActive(true);
 733 }
 734
 735 void DolphinView::slotItemActivated(int index)
 736 {
 737     const KFileItem item = fileItemModel()->fileItem(index);
 738     if (!item.isNull()) {
 739         emit itemActivated(item);
 740     }
 741 }
 742
 743 void DolphinView::slotItemsActivated(const QSet<int>& indexes)
 744 {
 745     Q_ASSERT(indexes.count() >= 2);
 746
 747     KFileItemList items;
 748
 749     KFileItemModel* model = fileItemModel();
 750     QSetIterator<int> it(indexes);
 751     while (it.hasNext()) {
 752         const int index = it.next();
 753         items.append(model->fileItem(index));
 754     }
 755
 756     foreach (const KFileItem& item, items) {
 757         if (item.isDir()) {
 758             emit tabRequested(item.url());
 759         } else {
 760             emit itemActivated(item);
 761         }
 762     }
 763 }
 764
 765 void DolphinView::slotItemMiddleClicked(int index)
 766 {
 767     const KFileItem item = fileItemModel()->fileItem(index);
 768     if (item.isDir() || isTabsForFilesEnabled()) {
 769         emit tabRequested(item.url());
 770     }
 771 }
 772
 773 void DolphinView::slotItemContextMenuRequested(int index, const QPointF& pos)
 774 {
 775     const KFileItem item = fileItemModel()->fileItem(index);
 776     emit requestContextMenu(pos.toPoint(), item, url(), QList<QAction*>());
 777 }
 778
 779 void DolphinView::slotViewContextMenuRequested(const QPointF& pos)
 780 {
 781     emit requestContextMenu(pos.toPoint(), KFileItem(), url(), QList<QAction*>());
 782 }
 783
 784 void DolphinView::slotHeaderContextMenuRequested(const QPointF& pos)
 785 {
 786     ViewProperties props(url());
 787
 788     QPointer<KMenu> menu = new KMenu(QApplication::activeWindow());
 789
 790     KItemListView* view = m_container->controller()->view();
 791     const QSet<QByteArray> visibleRolesSet = view->visibleRoles().toSet();
 792
 793     bool nepomukRunning = false;
 794     bool indexingEnabled = false;
 795 #ifdef HAVE_NEPOMUK
 796     nepomukRunning = (Nepomuk::ResourceManager::instance()->init() == 0);
 797     if (nepomukRunning) {
 798         KConfig config("nepomukserverrc");
 799         indexingEnabled = config.group("Service-nepomukfileindexer").readEntry("autostart", false);
 800     }
 801 #endif
 802
 803     QString groupName;
 804     QMenu* groupMenu = 0;
 805
 806     // Add all roles to the menu that can be shown or hidden by the user
 807     const QList<KFileItemModel::RoleInfo> rolesInfo = KFileItemModel::rolesInformation();
 808     foreach (const KFileItemModel::RoleInfo& info, rolesInfo) {
 809         if (info.role == "name") {
 810             // It should not be possible to hide the "name" role
 811             continue;
 812         }
 813
 814         const QString text = fileItemModel()->roleDescription(info.role);
 815         QAction* action = 0;
 816         if (info.group.isEmpty()) {
 817             action = menu->addAction(text);
 818         } else {
 819             if (!groupMenu || info.group != groupName) {
 820                 groupName = info.group;
 821                 groupMenu = menu->addMenu(groupName);
 822             }
 823
 824             action = groupMenu->addAction(text);
 825         }
 826
 827         action->setCheckable(true);
 828         action->setChecked(visibleRolesSet.contains(info.role));
 829         action->setData(info.role);
 830
 831         const bool enable = (!info.requiresNepomuk && !info.requiresIndexer) ||
 832                             (info.requiresNepomuk && nepomukRunning) ||
 833                             (info.requiresIndexer && indexingEnabled);
 834         action->setEnabled(enable);
 835     }
 836
 837     menu->addSeparator();
 838
 839     QActionGroup* widthsGroup = new QActionGroup(menu);
 840     const bool autoColumnWidths = props.headerColumnWidths().isEmpty();
 841
 842     QAction* autoAdjustWidthsAction = menu->addAction(i18nc("@action:inmenu", "Automatic Column Widths"));
 843     autoAdjustWidthsAction->setCheckable(true);
 844     autoAdjustWidthsAction->setChecked(autoColumnWidths);
 845     autoAdjustWidthsAction->setActionGroup(widthsGroup);
 846
 847     QAction* customWidthsAction = menu->addAction(i18nc("@action:inmenu", "Custom Column Widths"));
 848     customWidthsAction->setCheckable(true);
 849     customWidthsAction->setChecked(!autoColumnWidths);
 850     customWidthsAction->setActionGroup(widthsGroup);
 851
 852     QAction* action = menu->exec(pos.toPoint());
 853     if (menu && action) {
 854         KItemListHeader* header = view->header();
 855
 856         if (action == autoAdjustWidthsAction) {
 857             // Clear the column-widths from the viewproperties and turn on
 858             // the automatic resizing of the columns
 859             props.setHeaderColumnWidths(QList<int>());
 860             header->setAutomaticColumnResizing(true);
 861         } else if (action == customWidthsAction) {
 862             // Apply the current column-widths as custom column-widths and turn
 863             // off the automatic resizing of the columns
 864             QList<int> columnWidths;
 865             foreach (const QByteArray& role, view->visibleRoles()) {
 866                 columnWidths.append(header->columnWidth(role));
 867             }
 868             props.setHeaderColumnWidths(columnWidths);
 869             header->setAutomaticColumnResizing(false);
 870         } else {
 871             // Show or hide the selected role
 872             const QByteArray selectedRole = action->data().toByteArray();
 873
 874             QList<QByteArray> visibleRoles = view->visibleRoles();
 875             if (action->isChecked()) {
 876                 visibleRoles.append(selectedRole);
 877             } else {
 878                 visibleRoles.removeOne(selectedRole);
 879             }
 880
 881             view->setVisibleRoles(visibleRoles);
 882             props.setVisibleRoles(visibleRoles);
 883
 884             QList<int> columnWidths;
 885             if (!header->automaticColumnResizing()) {
 886                 foreach (const QByteArray& role, view->visibleRoles()) {
 887                     columnWidths.append(header->columnWidth(role));
 888                 }
 889             }
 890             props.setHeaderColumnWidths(columnWidths);
 891         }
 892     }
 893
 894     delete menu;
 895 }
 896
 897 void DolphinView::slotHeaderColumnWidthChanged(const QByteArray& role, qreal current, qreal previous)
 898 {
 899     Q_UNUSED(previous);
 900
 901     const QList<QByteArray> visibleRoles = m_container->visibleRoles();
 902
 903     ViewProperties props(url());
 904     QList<int> columnWidths = props.headerColumnWidths();
 905     if (columnWidths.count() != visibleRoles.count()) {
 906         columnWidths.clear();
 907         columnWidths.reserve(visibleRoles.count());
 908         const KItemListHeader* header = m_container->controller()->view()->header();
 909         foreach (const QByteArray& role, visibleRoles) {
 910             const int width = header->columnWidth(role);
 911             columnWidths.append(width);
 912         }
 913     }
 914
 915     const int roleIndex = visibleRoles.indexOf(role);
 916     Q_ASSERT(roleIndex >= 0 && roleIndex < columnWidths.count());
 917     columnWidths[roleIndex] = current;
 918
 919     props.setHeaderColumnWidths(columnWidths);
 920 }
 921
 922 void DolphinView::slotItemHovered(int index)
 923 {
 924     const KFileItem item = fileItemModel()->fileItem(index);
 925
 926     if (GeneralSettings::showToolTips() && !m_dragging) {
 927         QRectF itemRect = m_container->controller()->view()->itemContextRect(index);
 928         const QPoint pos = m_container->mapToGlobal(itemRect.topLeft().toPoint());
 929         itemRect.moveTo(pos);
 930
 931         m_toolTipManager->showToolTip(item, itemRect);
 932     }
 933
 934     emit requestItemInfo(item);
 935 }
 936
 937 void DolphinView::slotItemUnhovered(int index)
 938 {
 939     Q_UNUSED(index);
 940     hideToolTip();
 941     emit requestItemInfo(KFileItem());
 942 }
 943
 944 void DolphinView::slotItemDropEvent(int index, QGraphicsSceneDragDropEvent* event)
 945 {
 946     KUrl destUrl;
 947     KFileItem destItem = fileItemModel()->fileItem(index);
 948     if (destItem.isNull() || (!destItem.isDir() && !destItem.isDesktopFile())) {
 949         // Use the URL of the view as drop target if the item is no directory
 950         // or desktop-file
 951         destItem = fileItemModel()->rootItem();
 952         destUrl = url();
 953     } else {
 954         // The item represents a directory or desktop-file
 955         destUrl = destItem.url();
 956     }
 957
 958     QDropEvent dropEvent(event->pos().toPoint(),
 959                          event->possibleActions(),
 960                          event->mimeData(),
 961                          event->buttons(),
 962                          event->modifiers());
 963
 964     const QString error = DragAndDropHelper::dropUrls(destItem, destUrl, &dropEvent);
 965     if (!error.isEmpty()) {
 966         emit errorMessage(error);
 967     }
 968
 969     if (destUrl == url()) {
 970         // Mark the dropped urls as selected.
 971         markPastedUrlsAsSelected(event->mimeData());
 972     }
 973 }
 974
 975 void DolphinView::slotModelChanged(KItemModelBase* current, KItemModelBase* previous)
 976 {
 977     if (previous != 0) {
 978         disconnect(previous, SIGNAL(loadingCompleted()), this, SLOT(slotLoadingCompleted()));
 979     }
 980
 981     Q_ASSERT(qobject_cast<KFileItemModel*>(current));
 982     connect(current, SIGNAL(loadingCompleted()), this, SLOT(slotLoadingCompleted()));
 983
 984     KFileItemModel* fileItemModel = static_cast<KFileItemModel*>(current);
 985     m_versionControlObserver->setModel(fileItemModel);
 986 }
 987
 988 void DolphinView::slotMouseButtonPressed(int itemIndex, Qt::MouseButtons buttons)
 989 {
 990     hideToolTip();
 991
 992     if (itemIndex < 0) {
 993         // Trigger the history navigation only when clicking on the viewport:
 994         // Above an item the XButtons provide a simple way to select items in
 995         // the singleClick mode.
 996         if (buttons & Qt::XButton1) {
 997             emit goBackRequested();
 998         } else if (buttons & Qt::XButton2) {
 999             emit goForwardRequested();
1000         }
1001     }
1002 }
1003
1004 void DolphinView::slotSelectionChanged(const QSet<int>& current, const QSet<int>& previous)
1005 {
1006     const int currentCount = current.count();
1007     const int previousCount = previous.count();
1008     const bool selectionStateChanged = (currentCount == 0 && previousCount  > 0) ||
1009                                        (currentCount >  0 && previousCount == 0);
1010
1011     // If nothing has been selected before and something got selected (or if something
1012     // was selected before and now nothing is selected) the selectionChangedSignal must
1013     // be emitted asynchronously as fast as possible to update the edit-actions.
1014     m_selectionChangedTimer->setInterval(selectionStateChanged ? 0 : 300);
1015     m_selectionChangedTimer->start();
1016 }
1017
1018 void DolphinView::emitSelectionChangedSignal()
1019 {
1020     m_selectionChangedTimer->stop();
1021     emit selectionChanged(selectedItems());
1022 }
1023
1024 void DolphinView::updateSortRole(const QByteArray& role)
1025 {
1026     ViewProperties props(url());
1027     props.setSortRole(role);
1028
1029     KItemModelBase* model = m_container->controller()->model();
1030     model->setSortRole(role);
1031
1032     emit sortRoleChanged(role);
1033 }
1034
1035 void DolphinView::updateSortOrder(Qt::SortOrder order)
1036 {
1037     ViewProperties props(url());
1038     props.setSortOrder(order);
1039
1040     KItemModelBase* model = fileItemModel();
1041     model->setSortOrder(order);
1042
1043     emit sortOrderChanged(order);
1044 }
1045
1046 void DolphinView::updateSortFoldersFirst(bool foldersFirst)
1047 {
1048     ViewProperties props(url());
1049     props.setSortFoldersFirst(foldersFirst);
1050
1051     KFileItemModel* model = fileItemModel();
1052     model->setSortFoldersFirst(foldersFirst);
1053
1054     emit sortFoldersFirstChanged(foldersFirst);
1055 }
1056
1057 QPair<bool, QString> DolphinView::pasteInfo() const
1058 {
1059     return KonqOperations::pasteInfo(url());
1060 }
1061
1062 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
1063 {
1064     m_tabsForFiles = tabsForFiles;
1065 }
1066
1067 bool DolphinView::isTabsForFilesEnabled() const
1068 {
1069     return m_tabsForFiles;
1070 }
1071
1072 bool DolphinView::itemsExpandable() const
1073 {
1074     return m_mode == DetailsView;
1075 }
1076
1077 void DolphinView::restoreState(QDataStream& stream)
1078 {
1079     // Restore the current item that had the keyboard focus
1080     stream >> m_currentItemUrl;
1081
1082     // Restore the view position
1083     stream >> m_restoredContentsPosition;
1084
1085     // Restore expanded folders (only relevant for the details view - will be ignored by the view in other view modes)
1086     QSet<KUrl> urls;
1087     stream >> urls;
1088     fileItemModel()->restoreExpandedUrls(urls);
1089 }
1090
1091 void DolphinView::saveState(QDataStream& stream)
1092 {
1093     // Save the current item that has the keyboard focus
1094     const int currentIndex = m_container->controller()->selectionManager()->currentItem();
1095     if (currentIndex != -1) {
1096         KFileItem item = fileItemModel()->fileItem(currentIndex);
1097         Q_ASSERT(!item.isNull()); // If the current index is valid a item must exist
1098         KUrl currentItemUrl = item.url();
1099         stream << currentItemUrl;
1100     } else {
1101         stream << KUrl();
1102     }
1103
1104     // Save view position
1105     const qreal x = m_container->horizontalScrollBar()->value();
1106     const qreal y = m_container->verticalScrollBar()->value();
1107     stream << QPoint(x, y);
1108
1109     // Save expanded folders (only relevant for the details view - the set will be empty in other view modes)
1110     stream << fileItemModel()->expandedUrls();
1111 }
1112
1113 bool DolphinView::hasSelection() const
1114 {
1115     return m_container->controller()->selectionManager()->hasSelection();
1116 }
1117
1118 KFileItem DolphinView::rootItem() const
1119 {
1120     return m_dirLister->rootItem();
1121 }
1122
1123 void DolphinView::observeCreatedItem(const KUrl& url)
1124 {
1125     m_createdItemUrl = url;
1126     //connect(m_dirModel, SIGNAL(rowsInserted(QModelIndex,int,int)),
1127     //        this, SLOT(selectAndScrollToCreatedItem()));
1128 }
1129
1130 void DolphinView::selectAndScrollToCreatedItem()
1131 {
1132     /*const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_createdItemUrl);
1133     if (dirIndex.isValid()) {
1134         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1135         QAbstractItemView* view = m_viewAccessor.itemView();
1136         if (view) {
1137             view->setCurrentIndex(proxyIndex);
1138         }
1139     }
1140
1141     disconnect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(QModelIndex,int,int)),
1142                this, SLOT(selectAndScrollToCreatedItem()));*/
1143     m_createdItemUrl = KUrl();
1144 }
1145
1146 void DolphinView::slotRedirection(const KUrl& oldUrl, const KUrl& newUrl)
1147 {
1148     if (oldUrl.equals(url(), KUrl::CompareWithoutTrailingSlash)) {
1149         emit redirection(oldUrl, newUrl);
1150         m_url = newUrl; // #186947
1151     }
1152 }
1153
1154 void DolphinView::updateViewState()
1155 {
1156     if (m_currentItemUrl != KUrl()) {
1157         KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
1158         const int currentIndex = fileItemModel()->index(m_currentItemUrl);
1159         if (currentIndex != -1) {
1160             selectionManager->setCurrentItem(currentIndex);
1161         } else {
1162             selectionManager->setCurrentItem(0);
1163         }
1164         m_currentItemUrl = KUrl();
1165     }
1166
1167     if (!m_restoredContentsPosition.isNull()) {
1168         const int x = m_restoredContentsPosition.x();
1169         const int y = m_restoredContentsPosition.y();
1170         m_restoredContentsPosition = QPoint();
1171
1172         m_container->horizontalScrollBar()->setValue(x);
1173         m_container->verticalScrollBar()->setValue(y);
1174     }
1175
1176     if (!m_selectedUrls.isEmpty()) {
1177         clearSelection();
1178
1179         KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
1180         QSet<int> selectedItems = selectionManager->selectedItems();
1181         const KFileItemModel* model = fileItemModel();
1182
1183         foreach (const KUrl& url, m_selectedUrls) {
1184             const int index = model->index(url);
1185             if (index >= 0) {
1186                 selectedItems.insert(index);
1187             }
1188         }
1189
1190         selectionManager->setSelectedItems(selectedItems);
1191         m_selectedUrls.clear();
1192     }
1193 }
1194
1195 void DolphinView::hideToolTip()
1196 {
1197     if (GeneralSettings::showToolTips()) {
1198         m_toolTipManager->hideToolTip();
1199     }
1200 }
1201
1202 void DolphinView::showHoverInformation(const KFileItem& item)
1203 {
1204     emit requestItemInfo(item);
1205 }
1206
1207 void DolphinView::clearHoverInformation()
1208 {
1209     emit requestItemInfo(KFileItem());
1210 }
1211
1212 void DolphinView::slotDeleteFileFinished(KJob* job)
1213 {
1214     if (job->error() == 0) {
1215         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1216     } else if (job->error() != KIO::ERR_USER_CANCELED) {
1217         emit errorMessage(job->errorString());
1218     }
1219 }
1220
1221 void DolphinView::slotDirListerStarted(const KUrl& url)
1222 {
1223     // Disable the writestate temporary until it can be determined in a fast way
1224     // in DolphinView::slotLoadingCompleted()
1225     if (m_isFolderWritable) {
1226         m_isFolderWritable = false;
1227         emit writeStateChanged(m_isFolderWritable);
1228     }
1229
1230     emit startedPathLoading(url);
1231 }
1232
1233 void DolphinView::slotLoadingCompleted()
1234 {
1235     // Update the view-state. This has to be done using a Qt::QueuedConnection
1236     // because the view might not be in its final state yet.
1237     QTimer::singleShot(0, this, SLOT(updateViewState()));
1238
1239     emit finishedPathLoading(url());
1240
1241     updateWritableState();
1242 }
1243
1244 void DolphinView::slotRefreshItems()
1245 {
1246     if (m_assureVisibleCurrentIndex) {
1247         m_assureVisibleCurrentIndex = false;
1248         //QAbstractItemView* view = m_viewAccessor.itemView();
1249         //if (view) {
1250         //    m_viewAccessor.itemView()->scrollTo(m_viewAccessor.itemView()->currentIndex());
1251         //}
1252     }
1253 }
1254
1255 void DolphinView::slotSortOrderChangedByHeader(Qt::SortOrder current, Qt::SortOrder previous)
1256 {
1257     Q_UNUSED(previous);
1258     Q_ASSERT(fileItemModel()->sortOrder() == current);
1259
1260     ViewProperties props(url());
1261     props.setSortOrder(current);
1262
1263     emit sortOrderChanged(current);
1264 }
1265
1266 void DolphinView::slotSortRoleChangedByHeader(const QByteArray& current, const QByteArray& previous)
1267 {
1268     Q_UNUSED(previous);
1269     Q_ASSERT(fileItemModel()->sortRole() == current);
1270
1271     ViewProperties props(url());
1272     props.setSortRole(current);
1273
1274     emit sortRoleChanged(current);
1275 }
1276
1277 void DolphinView::slotVisibleRolesChangedByHeader(const QList<QByteArray>& current,
1278                                                   const QList<QByteArray>& previous)
1279 {
1280     Q_UNUSED(previous);
1281     Q_ASSERT(m_container->controller()->view()->visibleRoles() == current);
1282
1283     const QList<QByteArray> previousVisibleRoles = m_visibleRoles;
1284
1285     m_visibleRoles = current;
1286
1287     ViewProperties props(url());
1288     props.setVisibleRoles(m_visibleRoles);
1289
1290     emit visibleRolesChanged(m_visibleRoles, previousVisibleRoles);
1291 }
1292
1293 KFileItemModel* DolphinView::fileItemModel() const
1294 {
1295     return static_cast<KFileItemModel*>(m_container->controller()->model());
1296 }
1297
1298 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1299 {
1300     if (!url.isValid()) {
1301         const QString location(url.pathOrUrl());
1302         if (location.isEmpty()) {
1303             emit errorMessage(i18nc("@info:status", "The location is empty."));
1304         } else {
1305             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1306         }
1307         return;
1308     }
1309
1310     m_dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
1311 }
1312
1313 void DolphinView::applyViewProperties()
1314 {
1315     m_container->beginTransaction();
1316
1317     const ViewProperties props(url());
1318     KFileItemModel* model = fileItemModel();
1319
1320     const Mode mode = props.viewMode();
1321     if (m_mode != mode) {
1322         const Mode previousMode = m_mode;
1323         m_mode = mode;
1324
1325         // Changing the mode might result in changing
1326         // the zoom level. Remember the old zoom level so
1327         // that zoomLevelChanged() can get emitted.
1328         const int oldZoomLevel = m_container->zoomLevel();
1329
1330         switch (m_mode) {
1331         case IconsView:   m_container->setItemLayout(KFileItemListView::IconsLayout); break;
1332         case CompactView: m_container->setItemLayout(KFileItemListView::CompactLayout); break;
1333         case DetailsView: m_container->setItemLayout(KFileItemListView::DetailsLayout); break;
1334         default: Q_ASSERT(false); break;
1335         }
1336
1337         emit modeChanged(m_mode, previousMode);
1338
1339         if (m_container->zoomLevel() != oldZoomLevel) {
1340             emit zoomLevelChanged(m_container->zoomLevel(), oldZoomLevel);
1341         }
1342     }
1343
1344     const bool hiddenFilesShown = props.hiddenFilesShown();
1345     if (hiddenFilesShown != model->showHiddenFiles()) {
1346         model->setShowHiddenFiles(hiddenFilesShown);
1347         emit hiddenFilesShownChanged(hiddenFilesShown);
1348     }
1349
1350     const bool groupedSorting = props.groupedSorting();
1351     if (groupedSorting != model->groupedSorting()) {
1352         model->setGroupedSorting(groupedSorting);
1353         emit groupedSortingChanged(groupedSorting);
1354     }
1355
1356     const QByteArray sortRole = props.sortRole();
1357     if (sortRole != model->sortRole()) {
1358         model->setSortRole(sortRole);
1359         emit sortRoleChanged(sortRole);
1360     }
1361
1362     const Qt::SortOrder sortOrder = props.sortOrder();
1363     if (sortOrder != model->sortOrder()) {
1364         model->setSortOrder(sortOrder);
1365         emit sortOrderChanged(sortOrder);
1366     }
1367
1368     const bool sortFoldersFirst = props.sortFoldersFirst();
1369     if (sortFoldersFirst != model->sortFoldersFirst()) {
1370         model->setSortFoldersFirst(sortFoldersFirst);
1371         emit sortFoldersFirstChanged(sortFoldersFirst);
1372     }
1373
1374     const QList<QByteArray> visibleRoles = props.visibleRoles();
1375     if (visibleRoles != m_visibleRoles) {
1376         const QList<QByteArray> previousVisibleRoles = m_visibleRoles;
1377         m_visibleRoles = visibleRoles;
1378         m_container->setVisibleRoles(visibleRoles);
1379         emit visibleRolesChanged(m_visibleRoles, previousVisibleRoles);
1380     }
1381
1382     const bool previewsShown = props.previewsShown();
1383     if (previewsShown != m_container->previewsShown()) {
1384         const int oldZoomLevel = zoomLevel();
1385
1386         m_container->setPreviewsShown(previewsShown);
1387         emit previewsShownChanged(previewsShown);
1388
1389         // Changing the preview-state might result in a changed zoom-level
1390         if (oldZoomLevel != zoomLevel()) {
1391             emit zoomLevelChanged(zoomLevel(), oldZoomLevel);
1392         }
1393     }
1394
1395     KItemListView* itemListView = m_container->controller()->view();
1396     if (itemListView->isHeaderVisible()) {
1397         KItemListHeader* header = itemListView->header();
1398         const QList<int> headerColumnWidths = props.headerColumnWidths();
1399         const int rolesCount = m_visibleRoles.count();
1400         if (headerColumnWidths.count() == rolesCount) {
1401             header->setAutomaticColumnResizing(false);
1402
1403             QHash<QByteArray, qreal> columnWidths;
1404             for (int i = 0; i < rolesCount; ++i) {
1405                 columnWidths.insert(m_visibleRoles[i], headerColumnWidths[i]);
1406             }
1407             header->setColumnWidths(columnWidths);
1408         } else {
1409             header->setAutomaticColumnResizing(true);
1410         }
1411     }
1412
1413     m_container->endTransaction();
1414 }
1415
1416 void DolphinView::pasteToUrl(const KUrl& url)
1417 {
1418     markPastedUrlsAsSelected(QApplication::clipboard()->mimeData());
1419     KonqOperations::doPaste(this, url);
1420 }
1421
1422 KUrl::List DolphinView::simplifiedSelectedUrls() const
1423 {
1424     KUrl::List urls;
1425
1426     const KFileItemList items = selectedItems();
1427     foreach (const KFileItem &item, items) {
1428         urls.append(item.url());
1429     }
1430
1431     if (itemsExpandable()) {
1432         // TODO: Check if we still need KDirModel for this in KDE 5.0
1433         urls = KDirModel::simplifiedUrlList(urls);
1434     }
1435
1436     return urls;
1437 }
1438
1439 QMimeData* DolphinView::selectionMimeData() const
1440 {
1441     const KFileItemModel* model = fileItemModel();
1442     const KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
1443     const QSet<int> selectedIndexes = selectionManager->selectedItems();
1444
1445     return model->createMimeData(selectedIndexes);
1446 }
1447
1448 void DolphinView::markPastedUrlsAsSelected(const QMimeData* mimeData)
1449 {
1450     const KUrl::List sourceUrls = KUrl::List::fromMimeData(mimeData);
1451     KUrl::List destUrls;
1452     foreach (const KUrl& source, sourceUrls) {
1453         KUrl destination(url().url() + "/" + source.fileName());
1454         destUrls << destination;
1455     }
1456     markUrlsAsSelected(destUrls);
1457 }
1458
1459 void DolphinView::updateWritableState()
1460 {
1461     const bool wasFolderWritable = m_isFolderWritable;
1462     m_isFolderWritable = true;
1463
1464     const KFileItem item = m_dirLister->rootItem();
1465     if (!item.isNull()) {
1466         KFileItemListProperties capabilities(KFileItemList() << item);
1467         m_isFolderWritable = capabilities.supportsWriting();
1468     }
1469     if (m_isFolderWritable != wasFolderWritable) {
1470         emit writeStateChanged(m_isFolderWritable);
1471     }
1472 }
1473
1474 QString DolphinView::fileSizeText(KIO::filesize_t fileSize)
1475 {
1476     const KLocale* locale = KGlobal::locale();
1477     const unsigned int multiplier = (locale->binaryUnitDialect() == KLocale::MetricBinaryDialect)
1478                                     ? 1000 : 1024;
1479
1480     QString text;
1481     if (fileSize < multiplier) {
1482         // Show the size in bytes
1483         text = locale->formatByteSize(fileSize, 0, KLocale::DefaultBinaryDialect, KLocale::UnitByte);
1484     } else if (fileSize < multiplier * multiplier) {
1485         // Show the size in kilobytes and always round up. This is done
1486         // for consistency with the values shown e.g. in the "Size" column
1487         // of the details-view.
1488         fileSize += (multiplier / 2) - 1;
1489         text = locale->formatByteSize(fileSize, 0, KLocale::DefaultBinaryDialect, KLocale::UnitKiloByte);
1490     } else {
1491         // Show the size in the best fitting unit having one decimal
1492         text = locale->formatByteSize(fileSize, 1);
1493     }
1494     return text;
1495 }
1496
1497 #include "dolphinview.moc"