src/views/dolphinview.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006-2009 by Peter Penz <peter.penz19@gmail.com>        *
   3  *   Copyright (C) 2006 by Gregor Kališnik <gregor@podnapisi.net>          *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  19  ***************************************************************************/
  20
  21 #include "dolphinview.h"
  22
  23 #include <config-nepomuk.h>
  24
  25 #include <QAbstractItemView>
  26 #include <QApplication>
  27 #include <QBoxLayout>
  28 #include <QClipboard>
  29 #include <QDropEvent>
  30 #include <QGraphicsSceneDragDropEvent>
  31 #include <QKeyEvent>
  32 #include <QItemSelection>
  33 #include <QTimer>
  34 #include <QScrollBar>
  35
  36 #include <KActionCollection>
  37 #include <KColorScheme>
  38 #include <KDirModel>
  39 #include <KIconEffect>
  40 #include <KFileItem>
  41 #include <KFileItemListProperties>
  42 #include <KLocale>
  43 #include <kitemviews/kfileitemmodel.h>
  44 #include <kitemviews/kfileitemlistview.h>
  45 #include <kitemviews/kitemlistcontainer.h>
  46 #include <kitemviews/kitemlistheader.h>
  47 #include <kitemviews/kitemlistselectionmanager.h>
  48 #include <kitemviews/kitemlistview.h>
  49 #include <kitemviews/kitemlistcontroller.h>
  50 #include <KIO/DeleteJob>
  51 #include <KIO/JobUiDelegate>
  52 #include <KIO/NetAccess>
  53 #include <KIO/PreviewJob>
  54 #include <KJob>
  55 #include <KMenu>
  56 #include <KMessageBox>
  57 #include <konq_fileitemcapabilities.h>
  58 #include <konq_operations.h>
  59 #include <konqmimedata.h>
  60 #include <KToggleAction>
  61 #include <KUrl>
  62
  63 #include "dolphinnewfilemenuobserver.h"
  64 #include "dolphin_detailsmodesettings.h"
  65 #include "dolphin_generalsettings.h"
  66 #include "dolphinitemlistview.h"
  67 #include "draganddrophelper.h"
  68 #include "renamedialog.h"
  69 #include "versioncontrol/versioncontrolobserver.h"
  70 #include "viewmodecontroller.h"
  71 #include "viewproperties.h"
  72 #include "views/tooltips/tooltipmanager.h"
  73 #include "zoomlevelinfo.h"
  74
  75 #ifdef HAVE_NEPOMUK
  76     #include <Nepomuk/ResourceManager>
  77 #endif
  78
  79 namespace {
  80     const int MaxModeEnum = DolphinView::CompactView;
  81 };
  82
  83 DolphinView::DolphinView(const KUrl& url, QWidget* parent) :
  84     QWidget(parent),
  85     m_active(true),
  86     m_tabsForFiles(false),
  87     m_assureVisibleCurrentIndex(false),
  88     m_isFolderWritable(true),
  89     m_dragging(false),
  90     m_url(url),
  91     m_viewPropertiesContext(),
  92     m_mode(DolphinView::IconsView),
  93     m_visibleRoles(),
  94     m_topLayout(0),
  95     m_model(0),
  96     m_view(0),
  97     m_container(0),
  98     m_toolTipManager(0),
  99     m_selectionChangedTimer(0),
 100     m_currentItemUrl(),
 101     m_scrollToCurrentItem(false),
 102     m_restoredContentsPosition(),
 103     m_selectedUrls(),
 104     m_versionControlObserver(0)
 105 {
 106     m_topLayout = new QVBoxLayout(this);
 107     m_topLayout->setSpacing(0);
 108     m_topLayout->setMargin(0);
 109
 110     // When a new item has been created by the "Create New..." menu, the item should
 111     // get selected and it must be assured that the item will get visible. As the
 112     // creation is done asynchronously, several signals must be checked:
 113     connect(&DolphinNewFileMenuObserver::instance(), SIGNAL(itemCreated(KUrl)),
 114             this, SLOT(observeCreatedItem(KUrl)));
 115
 116     m_selectionChangedTimer = new QTimer(this);
 117     m_selectionChangedTimer->setSingleShot(true);
 118     m_selectionChangedTimer->setInterval(300);
 119     connect(m_selectionChangedTimer, SIGNAL(timeout()),
 120             this, SLOT(emitSelectionChangedSignal()));
 121
 122     m_model = new KFileItemModel(this);
 123     m_view = new DolphinItemListView();
 124     m_view->setEnabledSelectionToggles(GeneralSettings::showSelectionToggle());
 125     m_view->setEnlargeSmallPreviews(GeneralSettings::enlargeSmallPreviews());
 126     m_view->setVisibleRoles(QList<QByteArray>() << "text");
 127     applyModeToView();
 128
 129     KItemListController* controller = new KItemListController(m_model, m_view, this);
 130     const int delay = GeneralSettings::autoExpandFolders() ? 750 : -1;
 131     controller->setAutoActivationDelay(delay);
 132
 133     m_container = new KItemListContainer(controller, this);
 134     m_container->installEventFilter(this);
 135     setFocusProxy(m_container);
 136     connect(m_container->horizontalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(hideToolTip()));
 137     connect(m_container->verticalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(hideToolTip()));
 138
 139     controller->setSelectionBehavior(KItemListController::MultiSelection);
 140     connect(controller, SIGNAL(itemActivated(int)), this, SLOT(slotItemActivated(int)));
 141     connect(controller, SIGNAL(itemsActivated(QSet<int>)), this, SLOT(slotItemsActivated(QSet<int>)));
 142     connect(controller, SIGNAL(itemMiddleClicked(int)), this, SLOT(slotItemMiddleClicked(int)));
 143     connect(controller, SIGNAL(itemContextMenuRequested(int,QPointF)), this, SLOT(slotItemContextMenuRequested(int,QPointF)));
 144     connect(controller, SIGNAL(viewContextMenuRequested(QPointF)), this, SLOT(slotViewContextMenuRequested(QPointF)));
 145     connect(controller, SIGNAL(headerContextMenuRequested(QPointF)), this, SLOT(slotHeaderContextMenuRequested(QPointF)));
 146     connect(controller, SIGNAL(mouseButtonPressed(int,Qt::MouseButtons)), this, SLOT(slotMouseButtonPressed(int,Qt::MouseButtons)));
 147     connect(controller, SIGNAL(itemHovered(int)), this, SLOT(slotItemHovered(int)));
 148     connect(controller, SIGNAL(itemUnhovered(int)), this, SLOT(slotItemUnhovered(int)));
 149     connect(controller, SIGNAL(itemDropEvent(int,QGraphicsSceneDragDropEvent*)), this, SLOT(slotItemDropEvent(int,QGraphicsSceneDragDropEvent*)));
 150     connect(controller, SIGNAL(modelChanged(KItemModelBase*,KItemModelBase*)), this, SLOT(slotModelChanged(KItemModelBase*,KItemModelBase*)));
 151
 152     connect(m_model, SIGNAL(directoryLoadingStarted()),       this, SLOT(slotDirectoryLoadingStarted()));
 153     connect(m_model, SIGNAL(directoryLoadingCompleted()),     this, SLOT(slotDirectoryLoadingCompleted()));
 154     connect(m_model, SIGNAL(directoryLoadingProgress(int)),   this, SIGNAL(directoryLoadingProgress(int)));
 155     connect(m_model, SIGNAL(directorySortingProgress(int)),   this, SIGNAL(directorySortingProgress(int)));
 156     connect(m_model, SIGNAL(itemsChanged(KItemRangeList,QSet<QByteArray>)),
 157             this, SLOT(slotItemsChanged()));
 158     connect(m_model, SIGNAL(itemsRemoved(KItemRangeList)),    this, SIGNAL(itemCountChanged()));
 159     connect(m_model, SIGNAL(itemsInserted(KItemRangeList)),   this, SIGNAL(itemCountChanged()));
 160     connect(m_model, SIGNAL(infoMessage(QString)),            this, SIGNAL(infoMessage(QString)));
 161     connect(m_model, SIGNAL(errorMessage(QString)),           this, SIGNAL(errorMessage(QString)));
 162     connect(m_model, SIGNAL(directoryRedirection(KUrl,KUrl)), this, SLOT(slotDirectoryRedirection(KUrl,KUrl)));
 163     connect(m_model, SIGNAL(urlIsFileError(KUrl)),            this, SIGNAL(urlIsFileError(KUrl)));
 164
 165     m_view->installEventFilter(this);
 166     connect(m_view, SIGNAL(sortOrderChanged(Qt::SortOrder,Qt::SortOrder)),
 167             this, SLOT(slotSortOrderChangedByHeader(Qt::SortOrder,Qt::SortOrder)));
 168     connect(m_view, SIGNAL(sortRoleChanged(QByteArray,QByteArray)),
 169             this, SLOT(slotSortRoleChangedByHeader(QByteArray,QByteArray)));
 170     connect(m_view, SIGNAL(visibleRolesChanged(QList<QByteArray>,QList<QByteArray>)),
 171             this, SLOT(slotVisibleRolesChangedByHeader(QList<QByteArray>,QList<QByteArray>)));
 172     connect(m_view, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)),
 173             this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant)));
 174     connect(m_view->header(), SIGNAL(columnWidthChanged(QByteArray,qreal,qreal)),
 175             this, SLOT(slotHeaderColumnWidthChanged(QByteArray,qreal,qreal)));
 176
 177     KItemListSelectionManager* selectionManager = controller->selectionManager();
 178     connect(selectionManager, SIGNAL(selectionChanged(QSet<int>,QSet<int>)),
 179             this, SLOT(slotSelectionChanged(QSet<int>,QSet<int>)));
 180
 181     m_toolTipManager = new ToolTipManager(this);
 182
 183     m_versionControlObserver = new VersionControlObserver(this);
 184     m_versionControlObserver->setModel(m_model);
 185     connect(m_versionControlObserver, SIGNAL(infoMessage(QString)), this, SIGNAL(infoMessage(QString)));
 186     connect(m_versionControlObserver, SIGNAL(errorMessage(QString)), this, SIGNAL(errorMessage(QString)));
 187     connect(m_versionControlObserver, SIGNAL(operationCompletedMessage(QString)), this, SIGNAL(operationCompletedMessage(QString)));
 188
 189     applyViewProperties();
 190     m_topLayout->addWidget(m_container);
 191
 192     loadDirectory(url);
 193 }
 194
 195 DolphinView::~DolphinView()
 196 {
 197 }
 198
 199 KUrl DolphinView::url() const
 200 {
 201     return m_url;
 202 }
 203
 204 void DolphinView::setActive(bool active)
 205 {
 206     if (active == m_active) {
 207         return;
 208     }
 209
 210     m_active = active;
 211
 212     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 213     if (!active) {
 214         color.setAlpha(150);
 215     }
 216
 217     QWidget* viewport = m_container->viewport();
 218     if (viewport) {
 219         QPalette palette;
 220         palette.setColor(viewport->backgroundRole(), color);
 221         viewport->setPalette(palette);
 222     }
 223
 224     update();
 225
 226     if (active) {
 227         m_container->setFocus();
 228         emit activated();
 229         emit writeStateChanged(m_isFolderWritable);
 230     }
 231 }
 232
 233 bool DolphinView::isActive() const
 234 {
 235     return m_active;
 236 }
 237
 238 void DolphinView::setMode(Mode mode)
 239 {
 240     if (mode != m_mode) {
 241         ViewProperties props(viewPropertiesUrl());
 242         props.setViewMode(mode);
 243         props.save();
 244
 245         applyViewProperties();
 246     }
 247 }
 248
 249 DolphinView::Mode DolphinView::mode() const
 250 {
 251     return m_mode;
 252 }
 253
 254 void DolphinView::setPreviewsShown(bool show)
 255 {
 256     if (previewsShown() == show) {
 257         return;
 258     }
 259
 260     ViewProperties props(viewPropertiesUrl());
 261     props.setPreviewsShown(show);
 262
 263     const int oldZoomLevel = m_view->zoomLevel();
 264     m_view->setPreviewsShown(show);
 265     emit previewsShownChanged(show);
 266
 267     const int newZoomLevel = m_view->zoomLevel();
 268     if (newZoomLevel != oldZoomLevel) {
 269         emit zoomLevelChanged(newZoomLevel, oldZoomLevel);
 270     }
 271 }
 272
 273 bool DolphinView::previewsShown() const
 274 {
 275     return m_view->previewsShown();
 276 }
 277
 278 void DolphinView::setHiddenFilesShown(bool show)
 279 {
 280     if (m_model->showHiddenFiles() == show) {
 281         return;
 282     }
 283
 284     const KFileItemList itemList = selectedItems();
 285     m_selectedUrls.clear();
 286     m_selectedUrls = itemList.urlList();
 287
 288     ViewProperties props(viewPropertiesUrl());
 289     props.setHiddenFilesShown(show);
 290
 291     m_model->setShowHiddenFiles(show);
 292     emit hiddenFilesShownChanged(show);
 293 }
 294
 295 bool DolphinView::hiddenFilesShown() const
 296 {
 297     return m_model->showHiddenFiles();
 298 }
 299
 300 void DolphinView::setGroupedSorting(bool grouped)
 301 {
 302     if (grouped == groupedSorting()) {
 303         return;
 304     }
 305
 306     ViewProperties props(viewPropertiesUrl());
 307     props.setGroupedSorting(grouped);
 308     props.save();
 309
 310     m_container->controller()->model()->setGroupedSorting(grouped);
 311
 312     emit groupedSortingChanged(grouped);
 313 }
 314
 315 bool DolphinView::groupedSorting() const
 316 {
 317     return m_model->groupedSorting();
 318 }
 319
 320 KFileItemList DolphinView::items() const
 321 {
 322     KFileItemList list;
 323     const int itemCount = m_model->count();
 324     list.reserve(itemCount);
 325
 326     for (int i = 0; i < itemCount; ++i) {
 327         list.append(m_model->fileItem(i));
 328     }
 329
 330     return list;
 331 }
 332
 333 int DolphinView::itemsCount() const
 334 {
 335     return m_model->count();
 336 }
 337
 338 KFileItemList DolphinView::selectedItems() const
 339 {
 340     const KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 341     const QSet<int> selectedIndexes = selectionManager->selectedItems();
 342
 343     KFileItemList selectedItems;
 344     QSetIterator<int> it(selectedIndexes);
 345     while (it.hasNext()) {
 346         const int index = it.next();
 347         selectedItems.append(m_model->fileItem(index));
 348     }
 349     return selectedItems;
 350 }
 351
 352 int DolphinView::selectedItemsCount() const
 353 {
 354     const KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 355     return selectionManager->selectedItems().count();
 356 }
 357
 358 void DolphinView::markUrlsAsSelected(const QList<KUrl>& urls)
 359 {
 360     m_selectedUrls = urls;
 361 }
 362
 363 void DolphinView::markUrlAsCurrent(const KUrl& url)
 364 {
 365     m_currentItemUrl = url;
 366     m_scrollToCurrentItem = true;
 367 }
 368
 369 void DolphinView::selectItems(const QRegExp& pattern, bool enabled)
 370 {
 371     const KItemListSelectionManager::SelectionMode mode = enabled
 372                                                         ? KItemListSelectionManager::Select
 373                                                         : KItemListSelectionManager::Deselect;
 374     KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 375
 376     for (int index = 0; index < m_model->count(); index++) {
 377         const KFileItem item = m_model->fileItem(index);
 378         if (pattern.exactMatch(item.text())) {
 379             // An alternative approach would be to store the matching items in a QSet<int> and
 380             // select them in one go after the loop, but we'd need a new function
 381             // KItemListSelectionManager::setSelected(QSet<int>, SelectionMode mode)
 382             // for that.
 383             selectionManager->setSelected(index, 1, mode);
 384         }
 385     }
 386 }
 387
 388 void DolphinView::setZoomLevel(int level)
 389 {
 390     const int oldZoomLevel = zoomLevel();
 391     m_view->setZoomLevel(level);
 392     if (zoomLevel() != oldZoomLevel) {
 393         hideToolTip();
 394         emit zoomLevelChanged(zoomLevel(), oldZoomLevel);
 395     }
 396 }
 397
 398 int DolphinView::zoomLevel() const
 399 {
 400     return m_view->zoomLevel();
 401 }
 402
 403 void DolphinView::setSortRole(const QByteArray& role)
 404 {
 405     if (role != sortRole()) {
 406         updateSortRole(role);
 407     }
 408 }
 409
 410 QByteArray DolphinView::sortRole() const
 411 {
 412     const KItemModelBase* model = m_container->controller()->model();
 413     return model->sortRole();
 414 }
 415
 416 void DolphinView::setSortOrder(Qt::SortOrder order)
 417 {
 418     if (sortOrder() != order) {
 419         updateSortOrder(order);
 420     }
 421 }
 422
 423 Qt::SortOrder DolphinView::sortOrder() const
 424 {
 425     return m_model->sortOrder();
 426 }
 427
 428 void DolphinView::setSortFoldersFirst(bool foldersFirst)
 429 {
 430     if (sortFoldersFirst() != foldersFirst) {
 431         updateSortFoldersFirst(foldersFirst);
 432     }
 433 }
 434
 435 bool DolphinView::sortFoldersFirst() const
 436 {
 437     return m_model->sortDirectoriesFirst();
 438 }
 439
 440 void DolphinView::setVisibleRoles(const QList<QByteArray>& roles)
 441 {
 442     const QList<QByteArray> previousRoles = roles;
 443
 444     ViewProperties props(viewPropertiesUrl());
 445     props.setVisibleRoles(roles);
 446
 447     m_visibleRoles = roles;
 448     m_view->setVisibleRoles(roles);
 449
 450     emit visibleRolesChanged(m_visibleRoles, previousRoles);
 451 }
 452
 453 QList<QByteArray> DolphinView::visibleRoles() const
 454 {
 455     return m_visibleRoles;
 456 }
 457
 458 void DolphinView::reload()
 459 {
 460     QByteArray viewState;
 461     QDataStream saveStream(&viewState, QIODevice::WriteOnly);
 462     saveState(saveStream);
 463
 464     const KFileItemList itemList = selectedItems();
 465     m_selectedUrls.clear();
 466     m_selectedUrls = itemList.urlList();
 467
 468     setUrl(url());
 469     loadDirectory(url(), true);
 470
 471     QDataStream restoreStream(viewState);
 472     restoreState(restoreStream);
 473 }
 474
 475 void DolphinView::stopLoading()
 476 {
 477     m_model->cancelDirectoryLoading();
 478 }
 479
 480 void DolphinView::readSettings()
 481 {
 482     const int oldZoomLevel = m_view->zoomLevel();
 483
 484     GeneralSettings::self()->readConfig();
 485     m_view->readSettings();
 486     applyViewProperties();
 487
 488     const int delay = GeneralSettings::autoExpandFolders() ? 750 : -1;
 489     m_container->controller()->setAutoActivationDelay(delay);
 490
 491     const int newZoomLevel = m_view->zoomLevel();
 492     if (newZoomLevel != oldZoomLevel) {
 493         emit zoomLevelChanged(newZoomLevel, oldZoomLevel);
 494     }
 495 }
 496
 497 void DolphinView::writeSettings()
 498 {
 499     GeneralSettings::self()->writeConfig();
 500     m_view->writeSettings();
 501 }
 502
 503 void DolphinView::setNameFilter(const QString& nameFilter)
 504 {
 505     m_model->setNameFilter(nameFilter);
 506 }
 507
 508 QString DolphinView::nameFilter() const
 509 {
 510     return m_model->nameFilter();
 511 }
 512
 513 void DolphinView::setMimeTypeFilters(const QStringList& filters)
 514 {
 515     return m_model->setMimeTypeFilters(filters);
 516 }
 517
 518 QStringList DolphinView::mimeTypeFilters() const
 519 {
 520     return m_model->mimeTypeFilters();
 521 }
 522
 523 QString DolphinView::statusBarText() const
 524 {
 525     QString summary;
 526     QString foldersText;
 527     QString filesText;
 528
 529     int folderCount = 0;
 530     int fileCount = 0;
 531     KIO::filesize_t totalFileSize = 0;
 532
 533     if (m_container->controller()->selectionManager()->hasSelection()) {
 534         // Give a summary of the status of the selected files
 535         const KFileItemList list = selectedItems();
 536         foreach (const KFileItem& item, list) {
 537             if (item.isDir()) {
 538                 ++folderCount;
 539             } else {
 540                 ++fileCount;
 541                 totalFileSize += item.size();
 542             }
 543         }
 544
 545         if (folderCount + fileCount == 1) {
 546             // If only one item is selected, show the filename
 547             filesText = i18nc("@info:status", "<filename>%1</filename> selected", list.first().text());
 548         } else {
 549             // At least 2 items are selected
 550             foldersText = i18ncp("@info:status", "1 Folder selected", "%1 Folders selected", folderCount);
 551             filesText = i18ncp("@info:status", "1 File selected", "%1 Files selected", fileCount);
 552         }
 553     } else {
 554         calculateItemCount(fileCount, folderCount, totalFileSize);
 555         foldersText = i18ncp("@info:status", "1 Folder", "%1 Folders", folderCount);
 556         filesText = i18ncp("@info:status", "1 File", "%1 Files", fileCount);
 557     }
 558
 559     if (fileCount > 0 && folderCount > 0) {
 560         summary = i18nc("@info:status folders, files (size)", "%1, %2 (%3)",
 561                         foldersText, filesText,
 562                         KGlobal::locale()->formatByteSize(totalFileSize));
 563     } else if (fileCount > 0) {
 564         summary = i18nc("@info:status files (size)", "%1 (%2)",
 565                         filesText,
 566                         KGlobal::locale()->formatByteSize(totalFileSize));
 567     } else if (folderCount > 0) {
 568         summary = foldersText;
 569     } else {
 570         summary = i18nc("@info:status", "0 Folders, 0 Files");
 571     }
 572
 573     return summary;
 574 }
 575
 576 QList<QAction*> DolphinView::versionControlActions(const KFileItemList& items) const
 577 {
 578     QList<QAction*> actions;
 579
 580     if (items.isEmpty()) {
 581         const KFileItem item = m_model->rootItem();
 582         if (!item.isNull()) {
 583             actions = m_versionControlObserver->actions(KFileItemList() << item);
 584         }
 585     } else {
 586         actions = m_versionControlObserver->actions(items);
 587     }
 588
 589     return actions;
 590 }
 591
 592 void DolphinView::setUrl(const KUrl& url)
 593 {
 594     if (url == m_url) {
 595         return;
 596     }
 597
 598     emit urlAboutToBeChanged(url);
 599     m_url = url;
 600
 601     hideToolTip();
 602
 603     // It is important to clear the items from the model before
 604     // applying the view properties, otherwise expensive operations
 605     // might be done on the existing items although they get cleared
 606     // anyhow afterwards by loadDirectory().
 607     m_model->clear();
 608     applyViewProperties();
 609     loadDirectory(url);
 610
 611     emit urlChanged(url);
 612 }
 613
 614 void DolphinView::selectAll()
 615 {
 616     KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 617     selectionManager->setSelected(0, m_model->count());
 618 }
 619
 620 void DolphinView::invertSelection()
 621 {
 622     KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 623     selectionManager->setSelected(0, m_model->count(), KItemListSelectionManager::Toggle);
 624 }
 625
 626 void DolphinView::clearSelection()
 627 {
 628     m_container->controller()->selectionManager()->clearSelection();
 629 }
 630
 631 void DolphinView::renameSelectedItems()
 632 {
 633     const KFileItemList items = selectedItems();
 634      if (items.isEmpty()) {
 635          return;
 636      }
 637
 638      if (items.count() == 1 && GeneralSettings::renameInline()) {
 639          const int index = m_model->index(items.first());
 640          m_view->editRole(index, "text");
 641      } else {
 642          RenameDialog* dialog = new RenameDialog(this, items);
 643          dialog->setAttribute(Qt::WA_DeleteOnClose);
 644          dialog->show();
 645          dialog->raise();
 646          dialog->activateWindow();
 647      }
 648
 649      // Assure that the current index remains visible when KFileItemModel
 650      // will notify the view about changed items (which might result in
 651      // a changed sorting).
 652      m_assureVisibleCurrentIndex = true;
 653 }
 654
 655 void DolphinView::trashSelectedItems()
 656 {
 657     const KUrl::List list = simplifiedSelectedUrls();
 658     KonqOperations::del(this, KonqOperations::TRASH, list);
 659 }
 660
 661 void DolphinView::deleteSelectedItems()
 662 {
 663     const KUrl::List list = simplifiedSelectedUrls();
 664     const bool del = KonqOperations::askDeleteConfirmation(list,
 665                      KonqOperations::DEL,
 666                      KonqOperations::DEFAULT_CONFIRMATION,
 667                      this);
 668
 669     if (del) {
 670         KIO::Job* job = KIO::del(list);
 671         if (job->ui()) {
 672             job->ui()->setWindow(this);
 673         }
 674         connect(job, SIGNAL(result(KJob*)),
 675                 this, SLOT(slotDeleteFileFinished(KJob*)));
 676     }
 677 }
 678
 679 void DolphinView::cutSelectedItems()
 680 {
 681     QMimeData* mimeData = selectionMimeData();
 682     KonqMimeData::addIsCutSelection(mimeData, true);
 683     QApplication::clipboard()->setMimeData(mimeData);
 684 }
 685
 686 void DolphinView::copySelectedItems()
 687 {
 688     QMimeData* mimeData = selectionMimeData();
 689     QApplication::clipboard()->setMimeData(mimeData);
 690 }
 691
 692 void DolphinView::paste()
 693 {
 694     pasteToUrl(url());
 695 }
 696
 697 void DolphinView::pasteIntoFolder()
 698 {
 699     const KFileItemList items = selectedItems();
 700     if ((items.count() == 1) && items.first().isDir()) {
 701         pasteToUrl(items.first().url());
 702     }
 703 }
 704
 705 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 706 {
 707     switch (event->type()) {
 708     case QEvent::FocusIn:
 709         if (watched == m_container) {
 710             setActive(true);
 711         }
 712         break;
 713
 714     case QEvent::GraphicsSceneDragEnter:
 715         if (watched == m_view) {
 716             m_dragging = true;
 717         }
 718         break;
 719
 720     case QEvent::GraphicsSceneDragLeave:
 721         if (watched == m_view) {
 722             m_dragging = false;
 723         }
 724         break;
 725
 726     case QEvent::GraphicsSceneDrop:
 727         if (watched == m_view) {
 728             m_dragging = false;
 729         }
 730     default:
 731         break;
 732     }
 733
 734     return QWidget::eventFilter(watched, event);
 735 }
 736
 737 void DolphinView::wheelEvent(QWheelEvent* event)
 738 {
 739     if (event->modifiers().testFlag(Qt::ControlModifier)) {
 740         const int numDegrees = event->delta() / 8;
 741         const int numSteps = numDegrees / 15;
 742
 743         setZoomLevel(zoomLevel() + numSteps);
 744         event->accept();
 745     } else {
 746         event->ignore();
 747     }
 748 }
 749
 750 void DolphinView::hideEvent(QHideEvent* event)
 751 {
 752     hideToolTip();
 753     QWidget::hideEvent(event);
 754 }
 755
 756 bool DolphinView::event(QEvent* event)
 757 {
 758     /* See Bug 297355
 759      * Dolphin leaves file preview tooltips open even when is not visible.
 760      *
 761      * Hide tool-tip when Dolphin loses focus.
 762      */
 763     if (event->type() == QEvent::WindowDeactivate) {
 764         hideToolTip();
 765     }
 766
 767     return QWidget::event(event);
 768 }
 769
 770 void DolphinView::activate()
 771 {
 772     setActive(true);
 773 }
 774
 775 void DolphinView::slotItemActivated(int index)
 776 {
 777     const KFileItem item = m_model->fileItem(index);
 778     if (!item.isNull()) {
 779         emit itemActivated(item);
 780     }
 781 }
 782
 783 void DolphinView::slotItemsActivated(const QSet<int>& indexes)
 784 {
 785     Q_ASSERT(indexes.count() >= 2);
 786
 787     KFileItemList items;
 788
 789     QSetIterator<int> it(indexes);
 790     while (it.hasNext()) {
 791         const int index = it.next();
 792         items.append(m_model->fileItem(index));
 793     }
 794
 795     if (items.count() > 5) {
 796         QString question = QString("Are you sure you want to open %1 items?").arg(items.count());
 797         const int answer = KMessageBox::warningYesNo(this, question);
 798         if (answer != KMessageBox::Yes) {
 799             return;
 800         }
 801     }
 802
 803     foreach (const KFileItem& item, items) {
 804         if (item.isDir()) {
 805             emit tabRequested(item.url());
 806         } else {
 807             emit itemActivated(item);
 808         }
 809     }
 810 }
 811
 812 void DolphinView::slotItemMiddleClicked(int index)
 813 {
 814     const KFileItem item = m_model->fileItem(index);
 815     if (item.isDir() || isTabsForFilesEnabled()) {
 816         emit tabRequested(item.url());
 817     }
 818 }
 819
 820 void DolphinView::slotItemContextMenuRequested(int index, const QPointF& pos)
 821 {
 822     const KFileItem item = m_model->fileItem(index);
 823     emit requestContextMenu(pos.toPoint(), item, url(), QList<QAction*>());
 824 }
 825
 826 void DolphinView::slotViewContextMenuRequested(const QPointF& pos)
 827 {
 828     emit requestContextMenu(pos.toPoint(), KFileItem(), url(), QList<QAction*>());
 829 }
 830
 831 void DolphinView::slotHeaderContextMenuRequested(const QPointF& pos)
 832 {
 833     ViewProperties props(viewPropertiesUrl());
 834
 835     QPointer<KMenu> menu = new KMenu(QApplication::activeWindow());
 836
 837     KItemListView* view = m_container->controller()->view();
 838     const QSet<QByteArray> visibleRolesSet = view->visibleRoles().toSet();
 839
 840     bool nepomukRunning = false;
 841     bool indexingEnabled = false;
 842 #ifdef HAVE_NEPOMUK
 843     nepomukRunning = (Nepomuk::ResourceManager::instance()->initialized());
 844     if (nepomukRunning) {
 845         KConfig config("nepomukserverrc");
 846         indexingEnabled = config.group("Service-nepomukfileindexer").readEntry("autostart", false);
 847     }
 848 #endif
 849
 850     QString groupName;
 851     QMenu* groupMenu = 0;
 852
 853     // Add all roles to the menu that can be shown or hidden by the user
 854     const QList<KFileItemModel::RoleInfo> rolesInfo = KFileItemModel::rolesInformation();
 855     foreach (const KFileItemModel::RoleInfo& info, rolesInfo) {
 856         if (info.role == "text") {
 857             // It should not be possible to hide the "text" role
 858             continue;
 859         }
 860
 861         const QString text = m_model->roleDescription(info.role);
 862         QAction* action = 0;
 863         if (info.group.isEmpty()) {
 864             action = menu->addAction(text);
 865         } else {
 866             if (!groupMenu || info.group != groupName) {
 867                 groupName = info.group;
 868                 groupMenu = menu->addMenu(groupName);
 869             }
 870
 871             action = groupMenu->addAction(text);
 872         }
 873
 874         action->setCheckable(true);
 875         action->setChecked(visibleRolesSet.contains(info.role));
 876         action->setData(info.role);
 877
 878         const bool enable = (!info.requiresNepomuk && !info.requiresIndexer) ||
 879                             (info.requiresNepomuk && nepomukRunning) ||
 880                             (info.requiresIndexer && indexingEnabled);
 881         action->setEnabled(enable);
 882     }
 883
 884     menu->addSeparator();
 885
 886     QActionGroup* widthsGroup = new QActionGroup(menu);
 887     const bool autoColumnWidths = props.headerColumnWidths().isEmpty();
 888
 889     QAction* autoAdjustWidthsAction = menu->addAction(i18nc("@action:inmenu", "Automatic Column Widths"));
 890     autoAdjustWidthsAction->setCheckable(true);
 891     autoAdjustWidthsAction->setChecked(autoColumnWidths);
 892     autoAdjustWidthsAction->setActionGroup(widthsGroup);
 893
 894     QAction* customWidthsAction = menu->addAction(i18nc("@action:inmenu", "Custom Column Widths"));
 895     customWidthsAction->setCheckable(true);
 896     customWidthsAction->setChecked(!autoColumnWidths);
 897     customWidthsAction->setActionGroup(widthsGroup);
 898
 899     QAction* action = menu->exec(pos.toPoint());
 900     if (menu && action) {
 901         KItemListHeader* header = view->header();
 902
 903         if (action == autoAdjustWidthsAction) {
 904             // Clear the column-widths from the viewproperties and turn on
 905             // the automatic resizing of the columns
 906             props.setHeaderColumnWidths(QList<int>());
 907             header->setAutomaticColumnResizing(true);
 908         } else if (action == customWidthsAction) {
 909             // Apply the current column-widths as custom column-widths and turn
 910             // off the automatic resizing of the columns
 911             QList<int> columnWidths;
 912             foreach (const QByteArray& role, view->visibleRoles()) {
 913                 columnWidths.append(header->columnWidth(role));
 914             }
 915             props.setHeaderColumnWidths(columnWidths);
 916             header->setAutomaticColumnResizing(false);
 917         } else {
 918             // Show or hide the selected role
 919             const QByteArray selectedRole = action->data().toByteArray();
 920
 921             QList<QByteArray> visibleRoles = view->visibleRoles();
 922             if (action->isChecked()) {
 923                 visibleRoles.append(selectedRole);
 924             } else {
 925                 visibleRoles.removeOne(selectedRole);
 926             }
 927
 928             view->setVisibleRoles(visibleRoles);
 929             props.setVisibleRoles(visibleRoles);
 930
 931             QList<int> columnWidths;
 932             if (!header->automaticColumnResizing()) {
 933                 foreach (const QByteArray& role, view->visibleRoles()) {
 934                     columnWidths.append(header->columnWidth(role));
 935                 }
 936             }
 937             props.setHeaderColumnWidths(columnWidths);
 938         }
 939     }
 940
 941     delete menu;
 942 }
 943
 944 void DolphinView::slotHeaderColumnWidthChanged(const QByteArray& role, qreal current, qreal previous)
 945 {
 946     Q_UNUSED(previous);
 947
 948     const QList<QByteArray> visibleRoles = m_view->visibleRoles();
 949
 950     ViewProperties props(viewPropertiesUrl());
 951     QList<int> columnWidths = props.headerColumnWidths();
 952     if (columnWidths.count() != visibleRoles.count()) {
 953         columnWidths.clear();
 954         columnWidths.reserve(visibleRoles.count());
 955         const KItemListHeader* header = m_view->header();
 956         foreach (const QByteArray& role, visibleRoles) {
 957             const int width = header->columnWidth(role);
 958             columnWidths.append(width);
 959         }
 960     }
 961
 962     const int roleIndex = visibleRoles.indexOf(role);
 963     Q_ASSERT(roleIndex >= 0 && roleIndex < columnWidths.count());
 964     columnWidths[roleIndex] = current;
 965
 966     props.setHeaderColumnWidths(columnWidths);
 967 }
 968
 969 void DolphinView::slotItemHovered(int index)
 970 {
 971     const KFileItem item = m_model->fileItem(index);
 972
 973     if (GeneralSettings::showToolTips() && !m_dragging) {
 974         QRectF itemRect = m_container->controller()->view()->itemContextRect(index);
 975         const QPoint pos = m_container->mapToGlobal(itemRect.topLeft().toPoint());
 976         itemRect.moveTo(pos);
 977
 978         m_toolTipManager->showToolTip(item, itemRect);
 979     }
 980
 981     emit requestItemInfo(item);
 982 }
 983
 984 void DolphinView::slotItemUnhovered(int index)
 985 {
 986     Q_UNUSED(index);
 987     hideToolTip();
 988     emit requestItemInfo(KFileItem());
 989 }
 990
 991 void DolphinView::slotItemDropEvent(int index, QGraphicsSceneDragDropEvent* event)
 992 {
 993     KUrl destUrl;
 994     KFileItem destItem = m_model->fileItem(index);
 995     if (destItem.isNull() || (!destItem.isDir() && !destItem.isDesktopFile())) {
 996         // Use the URL of the view as drop target if the item is no directory
 997         // or desktop-file
 998         destItem = m_model->rootItem();
 999         destUrl = url();
1000     } else {
1001         // The item represents a directory or desktop-file
1002         destUrl = destItem.url();
1003     }
1004
1005     QDropEvent dropEvent(event->pos().toPoint(),
1006                          event->possibleActions(),
1007                          event->mimeData(),
1008                          event->buttons(),
1009                          event->modifiers());
1010
1011     const QString error = DragAndDropHelper::dropUrls(destItem, destUrl, &dropEvent);
1012     if (!error.isEmpty()) {
1013         emit errorMessage(error);
1014     }
1015
1016     if (destUrl == url()) {
1017         // Mark the dropped urls as selected.
1018         markPastedUrlsAsSelected(event->mimeData());
1019     }
1020 }
1021
1022 void DolphinView::slotModelChanged(KItemModelBase* current, KItemModelBase* previous)
1023 {
1024     if (previous != 0) {
1025         disconnect(previous, SIGNAL(directoryLoadingCompleted()), this, SLOT(slotDirectoryLoadingCompleted()));
1026         m_versionControlObserver->setModel(0);
1027     }
1028
1029     if (current) {
1030         Q_ASSERT(qobject_cast<KFileItemModel*>(current));
1031         connect(current, SIGNAL(loadingCompleted()), this, SLOT(slotDirectoryLoadingCompleted()));
1032
1033         KFileItemModel* fileItemModel = static_cast<KFileItemModel*>(current);
1034         m_versionControlObserver->setModel(fileItemModel);
1035     }
1036 }
1037
1038 void DolphinView::slotMouseButtonPressed(int itemIndex, Qt::MouseButtons buttons)
1039 {
1040     hideToolTip();
1041
1042     if (itemIndex < 0) {
1043         // Trigger the history navigation only when clicking on the viewport:
1044         // Above an item the XButtons provide a simple way to select items in
1045         // the singleClick mode.
1046         if (buttons & Qt::XButton1) {
1047             emit goBackRequested();
1048         } else if (buttons & Qt::XButton2) {
1049             emit goForwardRequested();
1050         }
1051     }
1052 }
1053
1054 void DolphinView::slotSelectionChanged(const QSet<int>& current, const QSet<int>& previous)
1055 {
1056     const int currentCount = current.count();
1057     const int previousCount = previous.count();
1058     const bool selectionStateChanged = (currentCount == 0 && previousCount  > 0) ||
1059                                        (currentCount >  0 && previousCount == 0);
1060
1061     // If nothing has been selected before and something got selected (or if something
1062     // was selected before and now nothing is selected) the selectionChangedSignal must
1063     // be emitted asynchronously as fast as possible to update the edit-actions.
1064     m_selectionChangedTimer->setInterval(selectionStateChanged ? 0 : 300);
1065     m_selectionChangedTimer->start();
1066 }
1067
1068 void DolphinView::emitSelectionChangedSignal()
1069 {
1070     m_selectionChangedTimer->stop();
1071     emit selectionChanged(selectedItems());
1072 }
1073
1074 void DolphinView::updateSortRole(const QByteArray& role)
1075 {
1076     ViewProperties props(viewPropertiesUrl());
1077     props.setSortRole(role);
1078
1079     KItemModelBase* model = m_container->controller()->model();
1080     model->setSortRole(role);
1081
1082     emit sortRoleChanged(role);
1083 }
1084
1085 void DolphinView::updateSortOrder(Qt::SortOrder order)
1086 {
1087     ViewProperties props(viewPropertiesUrl());
1088     props.setSortOrder(order);
1089
1090     m_model->setSortOrder(order);
1091
1092     emit sortOrderChanged(order);
1093 }
1094
1095 void DolphinView::updateSortFoldersFirst(bool foldersFirst)
1096 {
1097     ViewProperties props(viewPropertiesUrl());
1098     props.setSortFoldersFirst(foldersFirst);
1099
1100     m_model->setSortDirectoriesFirst(foldersFirst);
1101
1102     emit sortFoldersFirstChanged(foldersFirst);
1103 }
1104
1105 QPair<bool, QString> DolphinView::pasteInfo() const
1106 {
1107     return KonqOperations::pasteInfo(url());
1108 }
1109
1110 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
1111 {
1112     m_tabsForFiles = tabsForFiles;
1113 }
1114
1115 bool DolphinView::isTabsForFilesEnabled() const
1116 {
1117     return m_tabsForFiles;
1118 }
1119
1120 bool DolphinView::itemsExpandable() const
1121 {
1122     return m_mode == DetailsView;
1123 }
1124
1125 void DolphinView::restoreState(QDataStream& stream)
1126 {
1127     // Restore the current item that had the keyboard focus
1128     stream >> m_currentItemUrl;
1129
1130     // Restore the view position
1131     stream >> m_restoredContentsPosition;
1132
1133     // Restore expanded folders (only relevant for the details view - will be ignored by the view in other view modes)
1134     QSet<KUrl> urls;
1135     stream >> urls;
1136     m_model->restoreExpandedDirectories(urls);
1137 }
1138
1139 void DolphinView::saveState(QDataStream& stream)
1140 {
1141     // Save the current item that has the keyboard focus
1142     const int currentIndex = m_container->controller()->selectionManager()->currentItem();
1143     if (currentIndex != -1) {
1144         KFileItem item = m_model->fileItem(currentIndex);
1145         Q_ASSERT(!item.isNull()); // If the current index is valid a item must exist
1146         KUrl currentItemUrl = item.url();
1147         stream << currentItemUrl;
1148     } else {
1149         stream << KUrl();
1150     }
1151
1152     // Save view position
1153     const qreal x = m_container->horizontalScrollBar()->value();
1154     const qreal y = m_container->verticalScrollBar()->value();
1155     stream << QPoint(x, y);
1156
1157     // Save expanded folders (only relevant for the details view - the set will be empty in other view modes)
1158     stream << m_model->expandedDirectories();
1159 }
1160
1161 KFileItem DolphinView::rootItem() const
1162 {
1163     return m_model->rootItem();
1164 }
1165
1166 void DolphinView::setViewPropertiesContext(const QString& context)
1167 {
1168     m_viewPropertiesContext = context;
1169 }
1170
1171 QString DolphinView::viewPropertiesContext() const
1172 {
1173     return m_viewPropertiesContext;
1174 }
1175
1176 void DolphinView::observeCreatedItem(const KUrl& url)
1177 {
1178     markUrlAsCurrent(url);
1179     markUrlsAsSelected(QList<KUrl>() << url);
1180 }
1181
1182 void DolphinView::slotDirectoryRedirection(const KUrl& oldUrl, const KUrl& newUrl)
1183 {
1184     if (oldUrl.equals(url(), KUrl::CompareWithoutTrailingSlash)) {
1185         emit redirection(oldUrl, newUrl);
1186         m_url = newUrl; // #186947
1187     }
1188 }
1189
1190 void DolphinView::updateViewState()
1191 {
1192     if (m_currentItemUrl != KUrl()) {
1193         KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
1194         const int currentIndex = m_model->index(m_currentItemUrl);
1195         if (currentIndex != -1) {
1196             selectionManager->setCurrentItem(currentIndex);
1197
1198             // scroll to current item and reset the state
1199             if (m_scrollToCurrentItem) {
1200                 m_view->scrollToItem(currentIndex);
1201                 m_scrollToCurrentItem = false;
1202             }
1203         } else {
1204             selectionManager->setCurrentItem(0);
1205         }
1206         m_currentItemUrl = KUrl();
1207     }
1208
1209     if (!m_restoredContentsPosition.isNull()) {
1210         const int x = m_restoredContentsPosition.x();
1211         const int y = m_restoredContentsPosition.y();
1212         m_restoredContentsPosition = QPoint();
1213
1214         m_container->horizontalScrollBar()->setValue(x);
1215         m_container->verticalScrollBar()->setValue(y);
1216     }
1217
1218     if (!m_selectedUrls.isEmpty()) {
1219         clearSelection();
1220
1221         KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
1222         QSet<int> selectedItems = selectionManager->selectedItems();
1223
1224         foreach (const KUrl& url, m_selectedUrls) {
1225             const int index = m_model->index(url);
1226             if (index >= 0) {
1227                 selectedItems.insert(index);
1228             }
1229         }
1230
1231         selectionManager->setSelectedItems(selectedItems);
1232         m_selectedUrls.clear();
1233     }
1234 }
1235
1236 void DolphinView::hideToolTip()
1237 {
1238     if (GeneralSettings::showToolTips()) {
1239         m_toolTipManager->hideToolTip();
1240     }
1241 }
1242
1243 void DolphinView::calculateItemCount(int& fileCount,
1244                                      int& folderCount,
1245                                      KIO::filesize_t& totalFileSize) const
1246 {
1247     const int itemCount = m_model->count();
1248     for (int i = 0; i < itemCount; ++i) {
1249         const KFileItem item = m_model->fileItem(i);
1250         if (item.isDir()) {
1251             ++folderCount;
1252         } else {
1253             ++fileCount;
1254             totalFileSize += item.size();
1255         }
1256     }
1257 }
1258
1259 void DolphinView::showHoverInformation(const KFileItem& item)
1260 {
1261     emit requestItemInfo(item);
1262 }
1263
1264 void DolphinView::clearHoverInformation()
1265 {
1266     emit requestItemInfo(KFileItem());
1267 }
1268
1269 void DolphinView::slotDeleteFileFinished(KJob* job)
1270 {
1271     if (job->error() == 0) {
1272         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1273     } else if (job->error() != KIO::ERR_USER_CANCELED) {
1274         emit errorMessage(job->errorString());
1275     }
1276 }
1277
1278 void DolphinView::slotDirectoryLoadingStarted()
1279 {
1280     // Disable the writestate temporary until it can be determined in a fast way
1281     // in DolphinView::slotLoadingCompleted()
1282     if (m_isFolderWritable) {
1283         m_isFolderWritable = false;
1284         emit writeStateChanged(m_isFolderWritable);
1285     }
1286
1287     emit directoryLoadingStarted();
1288 }
1289
1290 void DolphinView::slotDirectoryLoadingCompleted()
1291 {
1292     // Update the view-state. This has to be done asynchronously
1293     // because the view might not be in its final state yet.
1294     QTimer::singleShot(0, this, SLOT(updateViewState()));
1295
1296     emit directoryLoadingCompleted();
1297
1298     updateWritableState();
1299 }
1300
1301 void DolphinView::slotItemsChanged()
1302 {
1303     m_assureVisibleCurrentIndex = false;
1304 }
1305
1306 void DolphinView::slotSortOrderChangedByHeader(Qt::SortOrder current, Qt::SortOrder previous)
1307 {
1308     Q_UNUSED(previous);
1309     Q_ASSERT(m_model->sortOrder() == current);
1310
1311     ViewProperties props(viewPropertiesUrl());
1312     props.setSortOrder(current);
1313
1314     emit sortOrderChanged(current);
1315 }
1316
1317 void DolphinView::slotSortRoleChangedByHeader(const QByteArray& current, const QByteArray& previous)
1318 {
1319     Q_UNUSED(previous);
1320     Q_ASSERT(m_model->sortRole() == current);
1321
1322     ViewProperties props(viewPropertiesUrl());
1323     props.setSortRole(current);
1324
1325     emit sortRoleChanged(current);
1326 }
1327
1328 void DolphinView::slotVisibleRolesChangedByHeader(const QList<QByteArray>& current,
1329                                                   const QList<QByteArray>& previous)
1330 {
1331     Q_UNUSED(previous);
1332     Q_ASSERT(m_container->controller()->view()->visibleRoles() == current);
1333
1334     const QList<QByteArray> previousVisibleRoles = m_visibleRoles;
1335
1336     m_visibleRoles = current;
1337
1338     ViewProperties props(viewPropertiesUrl());
1339     props.setVisibleRoles(m_visibleRoles);
1340
1341     emit visibleRolesChanged(m_visibleRoles, previousVisibleRoles);
1342 }
1343
1344 void DolphinView::slotRoleEditingFinished(int index, const QByteArray& role, const QVariant& value)
1345 {
1346     if (index < 0 || index >= m_model->count()) {
1347         return;
1348     }
1349
1350     if (role == "text") {
1351         const KFileItem oldItem = m_model->fileItem(index);
1352         const QString newName = value.toString();
1353         if (!newName.isEmpty() && newName != oldItem.text() && newName != QLatin1String(".") && newName != QLatin1String("..")) {
1354             const KUrl oldUrl = oldItem.url();
1355
1356             QHash<QByteArray, QVariant> data;
1357             data.insert(role, value);
1358             m_model->setData(index, data);
1359
1360             KonqOperations::rename(this, oldUrl, newName);
1361         }
1362     }
1363 }
1364
1365 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1366 {
1367     if (!url.isValid()) {
1368         const QString location(url.pathOrUrl());
1369         if (location.isEmpty()) {
1370             emit errorMessage(i18nc("@info:status", "The location is empty."));
1371         } else {
1372             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1373         }
1374         return;
1375     }
1376
1377     if (reload) {
1378         m_model->refreshDirectory(url);
1379     } else {
1380         m_model->loadDirectory(url);
1381     }
1382 }
1383
1384 void DolphinView::applyViewProperties()
1385 {
1386     m_view->beginTransaction();
1387
1388     const ViewProperties props(viewPropertiesUrl());
1389
1390     const Mode mode = props.viewMode();
1391     if (m_mode != mode) {
1392         const Mode previousMode = m_mode;
1393         m_mode = mode;
1394
1395         // Changing the mode might result in changing
1396         // the zoom level. Remember the old zoom level so
1397         // that zoomLevelChanged() can get emitted.
1398         const int oldZoomLevel = m_view->zoomLevel();
1399         applyModeToView();
1400
1401         emit modeChanged(m_mode, previousMode);
1402
1403         if (m_view->zoomLevel() != oldZoomLevel) {
1404             emit zoomLevelChanged(m_view->zoomLevel(), oldZoomLevel);
1405         }
1406     }
1407
1408     const bool hiddenFilesShown = props.hiddenFilesShown();
1409     if (hiddenFilesShown != m_model->showHiddenFiles()) {
1410         m_model->setShowHiddenFiles(hiddenFilesShown);
1411         emit hiddenFilesShownChanged(hiddenFilesShown);
1412     }
1413
1414     const bool groupedSorting = props.groupedSorting();
1415     if (groupedSorting != m_model->groupedSorting()) {
1416         m_model->setGroupedSorting(groupedSorting);
1417         emit groupedSortingChanged(groupedSorting);
1418     }
1419
1420     const QByteArray sortRole = props.sortRole();
1421     if (sortRole != m_model->sortRole()) {
1422         m_model->setSortRole(sortRole);
1423         emit sortRoleChanged(sortRole);
1424     }
1425
1426     const Qt::SortOrder sortOrder = props.sortOrder();
1427     if (sortOrder != m_model->sortOrder()) {
1428         m_model->setSortOrder(sortOrder);
1429         emit sortOrderChanged(sortOrder);
1430     }
1431
1432     const bool sortFoldersFirst = props.sortFoldersFirst();
1433     if (sortFoldersFirst != m_model->sortDirectoriesFirst()) {
1434         m_model->setSortDirectoriesFirst(sortFoldersFirst);
1435         emit sortFoldersFirstChanged(sortFoldersFirst);
1436     }
1437
1438     const QList<QByteArray> visibleRoles = props.visibleRoles();
1439     if (visibleRoles != m_visibleRoles) {
1440         const QList<QByteArray> previousVisibleRoles = m_visibleRoles;
1441         m_visibleRoles = visibleRoles;
1442         m_view->setVisibleRoles(visibleRoles);
1443         emit visibleRolesChanged(m_visibleRoles, previousVisibleRoles);
1444     }
1445
1446     const bool previewsShown = props.previewsShown();
1447     if (previewsShown != m_view->previewsShown()) {
1448         const int oldZoomLevel = zoomLevel();
1449
1450         m_view->setPreviewsShown(previewsShown);
1451         emit previewsShownChanged(previewsShown);
1452
1453         // Changing the preview-state might result in a changed zoom-level
1454         if (oldZoomLevel != zoomLevel()) {
1455             emit zoomLevelChanged(zoomLevel(), oldZoomLevel);
1456         }
1457     }
1458
1459     KItemListView* itemListView = m_container->controller()->view();
1460     if (itemListView->isHeaderVisible()) {
1461         KItemListHeader* header = itemListView->header();
1462         const QList<int> headerColumnWidths = props.headerColumnWidths();
1463         const int rolesCount = m_visibleRoles.count();
1464         if (headerColumnWidths.count() == rolesCount) {
1465             header->setAutomaticColumnResizing(false);
1466
1467             QHash<QByteArray, qreal> columnWidths;
1468             for (int i = 0; i < rolesCount; ++i) {
1469                 columnWidths.insert(m_visibleRoles[i], headerColumnWidths[i]);
1470             }
1471             header->setColumnWidths(columnWidths);
1472         } else {
1473             header->setAutomaticColumnResizing(true);
1474         }
1475     }
1476
1477     m_view->endTransaction();
1478 }
1479
1480 void DolphinView::applyModeToView()
1481 {
1482     switch (m_mode) {
1483     case IconsView:   m_view->setItemLayout(KFileItemListView::IconsLayout); break;
1484     case CompactView: m_view->setItemLayout(KFileItemListView::CompactLayout); break;
1485     case DetailsView: m_view->setItemLayout(KFileItemListView::DetailsLayout); break;
1486     default: Q_ASSERT(false); break;
1487     }
1488 }
1489
1490 void DolphinView::pasteToUrl(const KUrl& url)
1491 {
1492     markPastedUrlsAsSelected(QApplication::clipboard()->mimeData());
1493     KonqOperations::doPaste(this, url);
1494 }
1495
1496 KUrl::List DolphinView::simplifiedSelectedUrls() const
1497 {
1498     KUrl::List urls;
1499
1500     const KFileItemList items = selectedItems();
1501     foreach (const KFileItem& item, items) {
1502         urls.append(item.url());
1503     }
1504
1505     if (itemsExpandable()) {
1506         // TODO: Check if we still need KDirModel for this in KDE 5.0
1507         urls = KDirModel::simplifiedUrlList(urls);
1508     }
1509
1510     return urls;
1511 }
1512
1513 QMimeData* DolphinView::selectionMimeData() const
1514 {
1515     const KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
1516     const QSet<int> selectedIndexes = selectionManager->selectedItems();
1517
1518     return m_model->createMimeData(selectedIndexes);
1519 }
1520
1521 void DolphinView::markPastedUrlsAsSelected(const QMimeData* mimeData)
1522 {
1523     const KUrl::List sourceUrls = KUrl::List::fromMimeData(mimeData);
1524     KUrl::List destUrls;
1525     foreach (const KUrl& source, sourceUrls) {
1526         KUrl destination(url().url() + '/' + source.fileName());
1527         destUrls << destination;
1528     }
1529     markUrlsAsSelected(destUrls);
1530 }
1531
1532 void DolphinView::updateWritableState()
1533 {
1534     const bool wasFolderWritable = m_isFolderWritable;
1535     m_isFolderWritable = true;
1536
1537     const KFileItem item = m_model->rootItem();
1538     if (!item.isNull()) {
1539         KFileItemListProperties capabilities(KFileItemList() << item);
1540         m_isFolderWritable = capabilities.supportsWriting();
1541     }
1542     if (m_isFolderWritable != wasFolderWritable) {
1543         emit writeStateChanged(m_isFolderWritable);
1544     }
1545 }
1546
1547 KUrl DolphinView::viewPropertiesUrl() const
1548 {
1549     if (m_viewPropertiesContext.isEmpty()) {
1550         return m_url;
1551     }
1552
1553     KUrl url;
1554     url.setProtocol(m_url.protocol());
1555     url.setPath(m_viewPropertiesContext);
1556     return url;
1557 }
1558
1559 #include "dolphinview.moc"