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_clearSelectionBeforeSelectingNewItems(false),
 105     m_versionControlObserver(0)
 106 {
 107     m_topLayout = new QVBoxLayout(this);
 108     m_topLayout->setSpacing(0);
 109     m_topLayout->setMargin(0);
 110
 111     // When a new item has been created by the "Create New..." menu, the item should
 112     // get selected and it must be assured that the item will get visible. As the
 113     // creation is done asynchronously, several signals must be checked:
 114     connect(&DolphinNewFileMenuObserver::instance(), SIGNAL(itemCreated(KUrl)),
 115             this, SLOT(observeCreatedItem(KUrl)));
 116
 117     m_selectionChangedTimer = new QTimer(this);
 118     m_selectionChangedTimer->setSingleShot(true);
 119     m_selectionChangedTimer->setInterval(300);
 120     connect(m_selectionChangedTimer, SIGNAL(timeout()),
 121             this, SLOT(emitSelectionChangedSignal()));
 122
 123     m_model = new KFileItemModel(this);
 124     m_view = new DolphinItemListView();
 125     m_view->setEnabledSelectionToggles(GeneralSettings::showSelectionToggle());
 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     // The EnlargeSmallPreviews setting can only be changed after the model
 134     // has been set in the view by KItemListController.
 135     m_view->setEnlargeSmallPreviews(GeneralSettings::enlargeSmallPreviews());
 136
 137     m_container = new KItemListContainer(controller, this);
 138     m_container->installEventFilter(this);
 139     setFocusProxy(m_container);
 140     connect(m_container->horizontalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(hideToolTip()));
 141     connect(m_container->verticalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(hideToolTip()));
 142
 143     controller->setSelectionBehavior(KItemListController::MultiSelection);
 144     connect(controller, SIGNAL(itemActivated(int)), this, SLOT(slotItemActivated(int)));
 145     connect(controller, SIGNAL(itemsActivated(QSet<int>)), this, SLOT(slotItemsActivated(QSet<int>)));
 146     connect(controller, SIGNAL(itemMiddleClicked(int)), this, SLOT(slotItemMiddleClicked(int)));
 147     connect(controller, SIGNAL(itemContextMenuRequested(int,QPointF)), this, SLOT(slotItemContextMenuRequested(int,QPointF)));
 148     connect(controller, SIGNAL(viewContextMenuRequested(QPointF)), this, SLOT(slotViewContextMenuRequested(QPointF)));
 149     connect(controller, SIGNAL(headerContextMenuRequested(QPointF)), this, SLOT(slotHeaderContextMenuRequested(QPointF)));
 150     connect(controller, SIGNAL(mouseButtonPressed(int,Qt::MouseButtons)), this, SLOT(slotMouseButtonPressed(int,Qt::MouseButtons)));
 151     connect(controller, SIGNAL(itemHovered(int)), this, SLOT(slotItemHovered(int)));
 152     connect(controller, SIGNAL(itemUnhovered(int)), this, SLOT(slotItemUnhovered(int)));
 153     connect(controller, SIGNAL(itemDropEvent(int,QGraphicsSceneDragDropEvent*)), this, SLOT(slotItemDropEvent(int,QGraphicsSceneDragDropEvent*)));
 154     connect(controller, SIGNAL(modelChanged(KItemModelBase*,KItemModelBase*)), this, SLOT(slotModelChanged(KItemModelBase*,KItemModelBase*)));
 155
 156     connect(m_model, SIGNAL(directoryLoadingStarted()),       this, SLOT(slotDirectoryLoadingStarted()));
 157     connect(m_model, SIGNAL(directoryLoadingCompleted()),     this, SLOT(slotDirectoryLoadingCompleted()));
 158     connect(m_model, SIGNAL(directoryLoadingProgress(int)),   this, SIGNAL(directoryLoadingProgress(int)));
 159     connect(m_model, SIGNAL(directorySortingProgress(int)),   this, SIGNAL(directorySortingProgress(int)));
 160     connect(m_model, SIGNAL(itemsChanged(KItemRangeList,QSet<QByteArray>)),
 161             this, SLOT(slotItemsChanged()));
 162     connect(m_model, SIGNAL(itemsRemoved(KItemRangeList)),    this, SIGNAL(itemCountChanged()));
 163     connect(m_model, SIGNAL(itemsInserted(KItemRangeList)),   this, SIGNAL(itemCountChanged()));
 164     connect(m_model, SIGNAL(infoMessage(QString)),            this, SIGNAL(infoMessage(QString)));
 165     connect(m_model, SIGNAL(errorMessage(QString)),           this, SIGNAL(errorMessage(QString)));
 166     connect(m_model, SIGNAL(directoryRedirection(KUrl,KUrl)), this, SLOT(slotDirectoryRedirection(KUrl,KUrl)));
 167     connect(m_model, SIGNAL(urlIsFileError(KUrl)),            this, SIGNAL(urlIsFileError(KUrl)));
 168
 169     m_view->installEventFilter(this);
 170     connect(m_view, SIGNAL(sortOrderChanged(Qt::SortOrder,Qt::SortOrder)),
 171             this, SLOT(slotSortOrderChangedByHeader(Qt::SortOrder,Qt::SortOrder)));
 172     connect(m_view, SIGNAL(sortRoleChanged(QByteArray,QByteArray)),
 173             this, SLOT(slotSortRoleChangedByHeader(QByteArray,QByteArray)));
 174     connect(m_view, SIGNAL(visibleRolesChanged(QList<QByteArray>,QList<QByteArray>)),
 175             this, SLOT(slotVisibleRolesChangedByHeader(QList<QByteArray>,QList<QByteArray>)));
 176     connect(m_view, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)),
 177             this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant)));
 178     connect(m_view->header(), SIGNAL(columnWidthChanged(QByteArray,qreal,qreal)),
 179             this, SLOT(slotHeaderColumnWidthChanged(QByteArray,qreal,qreal)));
 180
 181     KItemListSelectionManager* selectionManager = controller->selectionManager();
 182     connect(selectionManager, SIGNAL(selectionChanged(QSet<int>,QSet<int>)),
 183             this, SLOT(slotSelectionChanged(QSet<int>,QSet<int>)));
 184
 185     m_toolTipManager = new ToolTipManager(this);
 186
 187     m_versionControlObserver = new VersionControlObserver(this);
 188     m_versionControlObserver->setModel(m_model);
 189     connect(m_versionControlObserver, SIGNAL(infoMessage(QString)), this, SIGNAL(infoMessage(QString)));
 190     connect(m_versionControlObserver, SIGNAL(errorMessage(QString)), this, SIGNAL(errorMessage(QString)));
 191     connect(m_versionControlObserver, SIGNAL(operationCompletedMessage(QString)), this, SIGNAL(operationCompletedMessage(QString)));
 192
 193     applyViewProperties();
 194     m_topLayout->addWidget(m_container);
 195
 196     loadDirectory(url);
 197 }
 198
 199 DolphinView::~DolphinView()
 200 {
 201 }
 202
 203 KUrl DolphinView::url() const
 204 {
 205     return m_url;
 206 }
 207
 208 void DolphinView::setActive(bool active)
 209 {
 210     if (active == m_active) {
 211         return;
 212     }
 213
 214     m_active = active;
 215
 216     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 217     if (!active) {
 218         color.setAlpha(150);
 219     }
 220
 221     QWidget* viewport = m_container->viewport();
 222     if (viewport) {
 223         QPalette palette;
 224         palette.setColor(viewport->backgroundRole(), color);
 225         viewport->setPalette(palette);
 226     }
 227
 228     update();
 229
 230     if (active) {
 231         m_container->setFocus();
 232         emit activated();
 233         emit writeStateChanged(m_isFolderWritable);
 234     }
 235 }
 236
 237 bool DolphinView::isActive() const
 238 {
 239     return m_active;
 240 }
 241
 242 void DolphinView::setMode(Mode mode)
 243 {
 244     if (mode != m_mode) {
 245         ViewProperties props(viewPropertiesUrl());
 246         props.setViewMode(mode);
 247         props.save();
 248
 249         applyViewProperties();
 250     }
 251 }
 252
 253 DolphinView::Mode DolphinView::mode() const
 254 {
 255     return m_mode;
 256 }
 257
 258 void DolphinView::setPreviewsShown(bool show)
 259 {
 260     if (previewsShown() == show) {
 261         return;
 262     }
 263
 264     ViewProperties props(viewPropertiesUrl());
 265     props.setPreviewsShown(show);
 266
 267     const int oldZoomLevel = m_view->zoomLevel();
 268     m_view->setPreviewsShown(show);
 269     emit previewsShownChanged(show);
 270
 271     const int newZoomLevel = m_view->zoomLevel();
 272     if (newZoomLevel != oldZoomLevel) {
 273         emit zoomLevelChanged(newZoomLevel, oldZoomLevel);
 274     }
 275 }
 276
 277 bool DolphinView::previewsShown() const
 278 {
 279     return m_view->previewsShown();
 280 }
 281
 282 void DolphinView::setHiddenFilesShown(bool show)
 283 {
 284     if (m_model->showHiddenFiles() == show) {
 285         return;
 286     }
 287
 288     const KFileItemList itemList = selectedItems();
 289     m_selectedUrls.clear();
 290     m_selectedUrls = itemList.urlList();
 291
 292     ViewProperties props(viewPropertiesUrl());
 293     props.setHiddenFilesShown(show);
 294
 295     m_model->setShowHiddenFiles(show);
 296     emit hiddenFilesShownChanged(show);
 297 }
 298
 299 bool DolphinView::hiddenFilesShown() const
 300 {
 301     return m_model->showHiddenFiles();
 302 }
 303
 304 void DolphinView::setGroupedSorting(bool grouped)
 305 {
 306     if (grouped == groupedSorting()) {
 307         return;
 308     }
 309
 310     ViewProperties props(viewPropertiesUrl());
 311     props.setGroupedSorting(grouped);
 312     props.save();
 313
 314     m_container->controller()->model()->setGroupedSorting(grouped);
 315
 316     emit groupedSortingChanged(grouped);
 317 }
 318
 319 bool DolphinView::groupedSorting() const
 320 {
 321     return m_model->groupedSorting();
 322 }
 323
 324 KFileItemList DolphinView::items() const
 325 {
 326     KFileItemList list;
 327     const int itemCount = m_model->count();
 328     list.reserve(itemCount);
 329
 330     for (int i = 0; i < itemCount; ++i) {
 331         list.append(m_model->fileItem(i));
 332     }
 333
 334     return list;
 335 }
 336
 337 int DolphinView::itemsCount() const
 338 {
 339     return m_model->count();
 340 }
 341
 342 KFileItemList DolphinView::selectedItems() const
 343 {
 344     const KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 345     const QSet<int> selectedIndexes = selectionManager->selectedItems();
 346
 347     KFileItemList selectedItems;
 348     QSetIterator<int> it(selectedIndexes);
 349     while (it.hasNext()) {
 350         const int index = it.next();
 351         selectedItems.append(m_model->fileItem(index));
 352     }
 353     return selectedItems;
 354 }
 355
 356 int DolphinView::selectedItemsCount() const
 357 {
 358     const KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 359     return selectionManager->selectedItems().count();
 360 }
 361
 362 void DolphinView::markUrlsAsSelected(const QList<KUrl>& urls)
 363 {
 364     m_selectedUrls = urls;
 365 }
 366
 367 void DolphinView::markUrlAsCurrent(const KUrl& url)
 368 {
 369     m_currentItemUrl = url;
 370     m_scrollToCurrentItem = true;
 371 }
 372
 373 void DolphinView::selectItems(const QRegExp& pattern, bool enabled)
 374 {
 375     const KItemListSelectionManager::SelectionMode mode = enabled
 376                                                         ? KItemListSelectionManager::Select
 377                                                         : KItemListSelectionManager::Deselect;
 378     KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 379
 380     for (int index = 0; index < m_model->count(); index++) {
 381         const KFileItem item = m_model->fileItem(index);
 382         if (pattern.exactMatch(item.text())) {
 383             // An alternative approach would be to store the matching items in a QSet<int> and
 384             // select them in one go after the loop, but we'd need a new function
 385             // KItemListSelectionManager::setSelected(QSet<int>, SelectionMode mode)
 386             // for that.
 387             selectionManager->setSelected(index, 1, mode);
 388         }
 389     }
 390 }
 391
 392 void DolphinView::setZoomLevel(int level)
 393 {
 394     const int oldZoomLevel = zoomLevel();
 395     m_view->setZoomLevel(level);
 396     if (zoomLevel() != oldZoomLevel) {
 397         hideToolTip();
 398         emit zoomLevelChanged(zoomLevel(), oldZoomLevel);
 399     }
 400 }
 401
 402 int DolphinView::zoomLevel() const
 403 {
 404     return m_view->zoomLevel();
 405 }
 406
 407 void DolphinView::setSortRole(const QByteArray& role)
 408 {
 409     if (role != sortRole()) {
 410         updateSortRole(role);
 411     }
 412 }
 413
 414 QByteArray DolphinView::sortRole() const
 415 {
 416     const KItemModelBase* model = m_container->controller()->model();
 417     return model->sortRole();
 418 }
 419
 420 void DolphinView::setSortOrder(Qt::SortOrder order)
 421 {
 422     if (sortOrder() != order) {
 423         updateSortOrder(order);
 424     }
 425 }
 426
 427 Qt::SortOrder DolphinView::sortOrder() const
 428 {
 429     return m_model->sortOrder();
 430 }
 431
 432 void DolphinView::setSortFoldersFirst(bool foldersFirst)
 433 {
 434     if (sortFoldersFirst() != foldersFirst) {
 435         updateSortFoldersFirst(foldersFirst);
 436     }
 437 }
 438
 439 bool DolphinView::sortFoldersFirst() const
 440 {
 441     return m_model->sortDirectoriesFirst();
 442 }
 443
 444 void DolphinView::setVisibleRoles(const QList<QByteArray>& roles)
 445 {
 446     const QList<QByteArray> previousRoles = roles;
 447
 448     ViewProperties props(viewPropertiesUrl());
 449     props.setVisibleRoles(roles);
 450
 451     m_visibleRoles = roles;
 452     m_view->setVisibleRoles(roles);
 453
 454     emit visibleRolesChanged(m_visibleRoles, previousRoles);
 455 }
 456
 457 QList<QByteArray> DolphinView::visibleRoles() const
 458 {
 459     return m_visibleRoles;
 460 }
 461
 462 void DolphinView::reload()
 463 {
 464     QByteArray viewState;
 465     QDataStream saveStream(&viewState, QIODevice::WriteOnly);
 466     saveState(saveStream);
 467
 468     const KFileItemList itemList = selectedItems();
 469     m_selectedUrls.clear();
 470     m_selectedUrls = itemList.urlList();
 471
 472     setUrl(url());
 473     loadDirectory(url(), true);
 474
 475     QDataStream restoreStream(viewState);
 476     restoreState(restoreStream);
 477 }
 478
 479 void DolphinView::stopLoading()
 480 {
 481     m_model->cancelDirectoryLoading();
 482 }
 483
 484 void DolphinView::readSettings()
 485 {
 486     const int oldZoomLevel = m_view->zoomLevel();
 487
 488     GeneralSettings::self()->readConfig();
 489     m_view->readSettings();
 490     applyViewProperties();
 491
 492     const int delay = GeneralSettings::autoExpandFolders() ? 750 : -1;
 493     m_container->controller()->setAutoActivationDelay(delay);
 494
 495     const int newZoomLevel = m_view->zoomLevel();
 496     if (newZoomLevel != oldZoomLevel) {
 497         emit zoomLevelChanged(newZoomLevel, oldZoomLevel);
 498     }
 499 }
 500
 501 void DolphinView::writeSettings()
 502 {
 503     GeneralSettings::self()->writeConfig();
 504     m_view->writeSettings();
 505 }
 506
 507 void DolphinView::setNameFilter(const QString& nameFilter)
 508 {
 509     m_model->setNameFilter(nameFilter);
 510 }
 511
 512 QString DolphinView::nameFilter() const
 513 {
 514     return m_model->nameFilter();
 515 }
 516
 517 void DolphinView::setMimeTypeFilters(const QStringList& filters)
 518 {
 519     return m_model->setMimeTypeFilters(filters);
 520 }
 521
 522 QStringList DolphinView::mimeTypeFilters() const
 523 {
 524     return m_model->mimeTypeFilters();
 525 }
 526
 527 QString DolphinView::statusBarText() const
 528 {
 529     QString summary;
 530     QString foldersText;
 531     QString filesText;
 532
 533     int folderCount = 0;
 534     int fileCount = 0;
 535     KIO::filesize_t totalFileSize = 0;
 536
 537     if (m_container->controller()->selectionManager()->hasSelection()) {
 538         // Give a summary of the status of the selected files
 539         const KFileItemList list = selectedItems();
 540         foreach (const KFileItem& item, list) {
 541             if (item.isDir()) {
 542                 ++folderCount;
 543             } else {
 544                 ++fileCount;
 545                 totalFileSize += item.size();
 546             }
 547         }
 548
 549         if (folderCount + fileCount == 1) {
 550             // If only one item is selected, show the filename
 551             filesText = i18nc("@info:status", "<filename>%1</filename> selected", list.first().text());
 552         } else {
 553             // At least 2 items are selected
 554             foldersText = i18ncp("@info:status", "1 Folder selected", "%1 Folders selected", folderCount);
 555             filesText = i18ncp("@info:status", "1 File selected", "%1 Files selected", fileCount);
 556         }
 557     } else {
 558         calculateItemCount(fileCount, folderCount, totalFileSize);
 559         foldersText = i18ncp("@info:status", "1 Folder", "%1 Folders", folderCount);
 560         filesText = i18ncp("@info:status", "1 File", "%1 Files", fileCount);
 561     }
 562
 563     if (fileCount > 0 && folderCount > 0) {
 564         summary = i18nc("@info:status folders, files (size)", "%1, %2 (%3)",
 565                         foldersText, filesText,
 566                         KGlobal::locale()->formatByteSize(totalFileSize));
 567     } else if (fileCount > 0) {
 568         summary = i18nc("@info:status files (size)", "%1 (%2)",
 569                         filesText,
 570                         KGlobal::locale()->formatByteSize(totalFileSize));
 571     } else if (folderCount > 0) {
 572         summary = foldersText;
 573     } else {
 574         summary = i18nc("@info:status", "0 Folders, 0 Files");
 575     }
 576
 577     return summary;
 578 }
 579
 580 QList<QAction*> DolphinView::versionControlActions(const KFileItemList& items) const
 581 {
 582     QList<QAction*> actions;
 583
 584     if (items.isEmpty()) {
 585         const KFileItem item = m_model->rootItem();
 586         if (!item.isNull()) {
 587             actions = m_versionControlObserver->actions(KFileItemList() << item);
 588         }
 589     } else {
 590         actions = m_versionControlObserver->actions(items);
 591     }
 592
 593     return actions;
 594 }
 595
 596 void DolphinView::setUrl(const KUrl& url)
 597 {
 598     if (url == m_url) {
 599         return;
 600     }
 601
 602     clearSelection();
 603
 604     emit urlAboutToBeChanged(url);
 605     m_url = url;
 606
 607     hideToolTip();
 608
 609     // It is important to clear the items from the model before
 610     // applying the view properties, otherwise expensive operations
 611     // might be done on the existing items although they get cleared
 612     // anyhow afterwards by loadDirectory().
 613     m_model->clear();
 614     applyViewProperties();
 615     loadDirectory(url);
 616
 617     emit urlChanged(url);
 618 }
 619
 620 void DolphinView::selectAll()
 621 {
 622     KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 623     selectionManager->setSelected(0, m_model->count());
 624 }
 625
 626 void DolphinView::invertSelection()
 627 {
 628     KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 629     selectionManager->setSelected(0, m_model->count(), KItemListSelectionManager::Toggle);
 630 }
 631
 632 void DolphinView::clearSelection()
 633 {
 634     m_selectedUrls.clear();
 635     m_container->controller()->selectionManager()->clearSelection();
 636 }
 637
 638 void DolphinView::renameSelectedItems()
 639 {
 640     const KFileItemList items = selectedItems();
 641      if (items.isEmpty()) {
 642          return;
 643      }
 644
 645      if (items.count() == 1 && GeneralSettings::renameInline()) {
 646          const int index = m_model->index(items.first());
 647          m_view->editRole(index, "text");
 648      } else {
 649          RenameDialog* dialog = new RenameDialog(this, items);
 650          dialog->setAttribute(Qt::WA_DeleteOnClose);
 651          dialog->show();
 652          dialog->raise();
 653          dialog->activateWindow();
 654      }
 655
 656      // Assure that the current index remains visible when KFileItemModel
 657      // will notify the view about changed items (which might result in
 658      // a changed sorting).
 659      m_assureVisibleCurrentIndex = true;
 660 }
 661
 662 void DolphinView::trashSelectedItems()
 663 {
 664     const KUrl::List list = simplifiedSelectedUrls();
 665     KonqOperations::del(this, KonqOperations::TRASH, list);
 666 }
 667
 668 void DolphinView::deleteSelectedItems()
 669 {
 670     const KUrl::List list = simplifiedSelectedUrls();
 671     const bool del = KonqOperations::askDeleteConfirmation(list,
 672                      KonqOperations::DEL,
 673                      KonqOperations::DEFAULT_CONFIRMATION,
 674                      this);
 675
 676     if (del) {
 677         KIO::Job* job = KIO::del(list);
 678         if (job->ui()) {
 679             job->ui()->setWindow(this);
 680         }
 681         connect(job, SIGNAL(result(KJob*)),
 682                 this, SLOT(slotDeleteFileFinished(KJob*)));
 683     }
 684 }
 685
 686 void DolphinView::cutSelectedItems()
 687 {
 688     QMimeData* mimeData = selectionMimeData();
 689     KonqMimeData::addIsCutSelection(mimeData, true);
 690     QApplication::clipboard()->setMimeData(mimeData);
 691 }
 692
 693 void DolphinView::copySelectedItems()
 694 {
 695     QMimeData* mimeData = selectionMimeData();
 696     QApplication::clipboard()->setMimeData(mimeData);
 697 }
 698
 699 void DolphinView::paste()
 700 {
 701     pasteToUrl(url());
 702 }
 703
 704 void DolphinView::pasteIntoFolder()
 705 {
 706     const KFileItemList items = selectedItems();
 707     if ((items.count() == 1) && items.first().isDir()) {
 708         pasteToUrl(items.first().url());
 709     }
 710 }
 711
 712 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 713 {
 714     switch (event->type()) {
 715     case QEvent::FocusIn:
 716         if (watched == m_container) {
 717             setActive(true);
 718         }
 719         break;
 720
 721     case QEvent::GraphicsSceneDragEnter:
 722         if (watched == m_view) {
 723             m_dragging = true;
 724         }
 725         break;
 726
 727     case QEvent::GraphicsSceneDragLeave:
 728         if (watched == m_view) {
 729             m_dragging = false;
 730         }
 731         break;
 732
 733     case QEvent::GraphicsSceneDrop:
 734         if (watched == m_view) {
 735             m_dragging = false;
 736         }
 737     default:
 738         break;
 739     }
 740
 741     return QWidget::eventFilter(watched, event);
 742 }
 743
 744 void DolphinView::wheelEvent(QWheelEvent* event)
 745 {
 746     if (event->modifiers().testFlag(Qt::ControlModifier)) {
 747         const int numDegrees = event->delta() / 8;
 748         const int numSteps = numDegrees / 15;
 749
 750         setZoomLevel(zoomLevel() + numSteps);
 751         event->accept();
 752     } else {
 753         event->ignore();
 754     }
 755 }
 756
 757 void DolphinView::hideEvent(QHideEvent* event)
 758 {
 759     hideToolTip();
 760     QWidget::hideEvent(event);
 761 }
 762
 763 bool DolphinView::event(QEvent* event)
 764 {
 765     /* See Bug 297355
 766      * Dolphin leaves file preview tooltips open even when is not visible.
 767      *
 768      * Hide tool-tip when Dolphin loses focus.
 769      */
 770     if (event->type() == QEvent::WindowDeactivate) {
 771         hideToolTip();
 772     }
 773
 774     return QWidget::event(event);
 775 }
 776
 777 void DolphinView::activate()
 778 {
 779     setActive(true);
 780 }
 781
 782 void DolphinView::slotItemActivated(int index)
 783 {
 784     const KFileItem item = m_model->fileItem(index);
 785     if (!item.isNull()) {
 786         emit itemActivated(item);
 787     }
 788 }
 789
 790 void DolphinView::slotItemsActivated(const QSet<int>& indexes)
 791 {
 792     Q_ASSERT(indexes.count() >= 2);
 793
 794     KFileItemList items;
 795
 796     QSetIterator<int> it(indexes);
 797     while (it.hasNext()) {
 798         const int index = it.next();
 799         items.append(m_model->fileItem(index));
 800     }
 801
 802     foreach (const KFileItem& item, items) {
 803         if (item.isDir()) {
 804             emit tabRequested(item.url());
 805         } else {
 806             emit itemActivated(item);
 807         }
 808     }
 809 }
 810
 811 void DolphinView::slotItemMiddleClicked(int index)
 812 {
 813     const KFileItem item = m_model->fileItem(index);
 814     if (item.isDir() || isTabsForFilesEnabled()) {
 815         emit tabRequested(item.url());
 816     }
 817 }
 818
 819 void DolphinView::slotItemContextMenuRequested(int index, const QPointF& pos)
 820 {
 821     const KFileItem item = m_model->fileItem(index);
 822     emit requestContextMenu(pos.toPoint(), item, url(), QList<QAction*>());
 823 }
 824
 825 void DolphinView::slotViewContextMenuRequested(const QPointF& pos)
 826 {
 827     emit requestContextMenu(pos.toPoint(), KFileItem(), url(), QList<QAction*>());
 828 }
 829
 830 void DolphinView::slotHeaderContextMenuRequested(const QPointF& pos)
 831 {
 832     ViewProperties props(viewPropertiesUrl());
 833
 834     QPointer<KMenu> menu = new KMenu(QApplication::activeWindow());
 835
 836     KItemListView* view = m_container->controller()->view();
 837     const QSet<QByteArray> visibleRolesSet = view->visibleRoles().toSet();
 838
 839     bool nepomukRunning = false;
 840     bool indexingEnabled = false;
 841 #ifdef HAVE_NEPOMUK
 842     nepomukRunning = (Nepomuk::ResourceManager::instance()->initialized());
 843     if (nepomukRunning) {
 844         KConfig config("nepomukserverrc");
 845         indexingEnabled = config.group("Service-nepomukfileindexer").readEntry("autostart", false);
 846     }
 847 #endif
 848
 849     QString groupName;
 850     QMenu* groupMenu = 0;
 851
 852     // Add all roles to the menu that can be shown or hidden by the user
 853     const QList<KFileItemModel::RoleInfo> rolesInfo = KFileItemModel::rolesInformation();
 854     foreach (const KFileItemModel::RoleInfo& info, rolesInfo) {
 855         if (info.role == "text") {
 856             // It should not be possible to hide the "text" role
 857             continue;
 858         }
 859
 860         const QString text = m_model->roleDescription(info.role);
 861         QAction* action = 0;
 862         if (info.group.isEmpty()) {
 863             action = menu->addAction(text);
 864         } else {
 865             if (!groupMenu || info.group != groupName) {
 866                 groupName = info.group;
 867                 groupMenu = menu->addMenu(groupName);
 868             }
 869
 870             action = groupMenu->addAction(text);
 871         }
 872
 873         action->setCheckable(true);
 874         action->setChecked(visibleRolesSet.contains(info.role));
 875         action->setData(info.role);
 876
 877         const bool enable = (!info.requiresNepomuk && !info.requiresIndexer) ||
 878                             (info.requiresNepomuk && nepomukRunning) ||
 879                             (info.requiresIndexer && indexingEnabled);
 880         action->setEnabled(enable);
 881     }
 882
 883     menu->addSeparator();
 884
 885     QActionGroup* widthsGroup = new QActionGroup(menu);
 886     const bool autoColumnWidths = props.headerColumnWidths().isEmpty();
 887
 888     QAction* autoAdjustWidthsAction = menu->addAction(i18nc("@action:inmenu", "Automatic Column Widths"));
 889     autoAdjustWidthsAction->setCheckable(true);
 890     autoAdjustWidthsAction->setChecked(autoColumnWidths);
 891     autoAdjustWidthsAction->setActionGroup(widthsGroup);
 892
 893     QAction* customWidthsAction = menu->addAction(i18nc("@action:inmenu", "Custom Column Widths"));
 894     customWidthsAction->setCheckable(true);
 895     customWidthsAction->setChecked(!autoColumnWidths);
 896     customWidthsAction->setActionGroup(widthsGroup);
 897
 898     QAction* action = menu->exec(pos.toPoint());
 899     if (menu && action) {
 900         KItemListHeader* header = view->header();
 901
 902         if (action == autoAdjustWidthsAction) {
 903             // Clear the column-widths from the viewproperties and turn on
 904             // the automatic resizing of the columns
 905             props.setHeaderColumnWidths(QList<int>());
 906             header->setAutomaticColumnResizing(true);
 907         } else if (action == customWidthsAction) {
 908             // Apply the current column-widths as custom column-widths and turn
 909             // off the automatic resizing of the columns
 910             QList<int> columnWidths;
 911             foreach (const QByteArray& role, view->visibleRoles()) {
 912                 columnWidths.append(header->columnWidth(role));
 913             }
 914             props.setHeaderColumnWidths(columnWidths);
 915             header->setAutomaticColumnResizing(false);
 916         } else {
 917             // Show or hide the selected role
 918             const QByteArray selectedRole = action->data().toByteArray();
 919
 920             QList<QByteArray> visibleRoles = view->visibleRoles();
 921             if (action->isChecked()) {
 922                 visibleRoles.append(selectedRole);
 923             } else {
 924                 visibleRoles.removeOne(selectedRole);
 925             }
 926
 927             view->setVisibleRoles(visibleRoles);
 928             props.setVisibleRoles(visibleRoles);
 929
 930             QList<int> columnWidths;
 931             if (!header->automaticColumnResizing()) {
 932                 foreach (const QByteArray& role, view->visibleRoles()) {
 933                     columnWidths.append(header->columnWidth(role));
 934                 }
 935             }
 936             props.setHeaderColumnWidths(columnWidths);
 937         }
 938     }
 939
 940     delete menu;
 941 }
 942
 943 void DolphinView::slotHeaderColumnWidthChanged(const QByteArray& role, qreal current, qreal previous)
 944 {
 945     Q_UNUSED(previous);
 946
 947     const QList<QByteArray> visibleRoles = m_view->visibleRoles();
 948
 949     ViewProperties props(viewPropertiesUrl());
 950     QList<int> columnWidths = props.headerColumnWidths();
 951     if (columnWidths.count() != visibleRoles.count()) {
 952         columnWidths.clear();
 953         columnWidths.reserve(visibleRoles.count());
 954         const KItemListHeader* header = m_view->header();
 955         foreach (const QByteArray& role, visibleRoles) {
 956             const int width = header->columnWidth(role);
 957             columnWidths.append(width);
 958         }
 959     }
 960
 961     const int roleIndex = visibleRoles.indexOf(role);
 962     Q_ASSERT(roleIndex >= 0 && roleIndex < columnWidths.count());
 963     columnWidths[roleIndex] = current;
 964
 965     props.setHeaderColumnWidths(columnWidths);
 966 }
 967
 968 void DolphinView::slotItemHovered(int index)
 969 {
 970     const KFileItem item = m_model->fileItem(index);
 971
 972     if (GeneralSettings::showToolTips() && !m_dragging) {
 973         QRectF itemRect = m_container->controller()->view()->itemContextRect(index);
 974         const QPoint pos = m_container->mapToGlobal(itemRect.topLeft().toPoint());
 975         itemRect.moveTo(pos);
 976
 977         m_toolTipManager->showToolTip(item, itemRect);
 978     }
 979
 980     emit requestItemInfo(item);
 981 }
 982
 983 void DolphinView::slotItemUnhovered(int index)
 984 {
 985     Q_UNUSED(index);
 986     hideToolTip();
 987     emit requestItemInfo(KFileItem());
 988 }
 989
 990 void DolphinView::slotItemDropEvent(int index, QGraphicsSceneDragDropEvent* event)
 991 {
 992     KUrl destUrl;
 993     KFileItem destItem = m_model->fileItem(index);
 994     if (destItem.isNull() || (!destItem.isDir() && !destItem.isDesktopFile())) {
 995         // Use the URL of the view as drop target if the item is no directory
 996         // or desktop-file
 997         destItem = m_model->rootItem();
 998         destUrl = url();
 999     } else {
1000         // The item represents a directory or desktop-file
1001         destUrl = destItem.url();
1002     }
1003
1004     QDropEvent dropEvent(event->pos().toPoint(),
1005                          event->possibleActions(),
1006                          event->mimeData(),
1007                          event->buttons(),
1008                          event->modifiers());
1009
1010     const QString error = DragAndDropHelper::dropUrls(destItem, destUrl, &dropEvent);
1011     if (!error.isEmpty()) {
1012         emit errorMessage(error);
1013     }
1014
1015     if (destUrl == url()) {
1016         // Mark the dropped urls as selected.
1017         markPastedUrlsAsSelected(event->mimeData());
1018     }
1019 }
1020
1021 void DolphinView::slotModelChanged(KItemModelBase* current, KItemModelBase* previous)
1022 {
1023     if (previous != 0) {
1024         disconnect(previous, SIGNAL(directoryLoadingCompleted()), this, SLOT(slotDirectoryLoadingCompleted()));
1025         m_versionControlObserver->setModel(0);
1026     }
1027
1028     if (current) {
1029         Q_ASSERT(qobject_cast<KFileItemModel*>(current));
1030         connect(current, SIGNAL(loadingCompleted()), this, SLOT(slotDirectoryLoadingCompleted()));
1031
1032         KFileItemModel* fileItemModel = static_cast<KFileItemModel*>(current);
1033         m_versionControlObserver->setModel(fileItemModel);
1034     }
1035 }
1036
1037 void DolphinView::slotMouseButtonPressed(int itemIndex, Qt::MouseButtons buttons)
1038 {
1039     hideToolTip();
1040
1041     if (itemIndex < 0) {
1042         // Trigger the history navigation only when clicking on the viewport:
1043         // Above an item the XButtons provide a simple way to select items in
1044         // the singleClick mode.
1045         if (buttons & Qt::XButton1) {
1046             emit goBackRequested();
1047         } else if (buttons & Qt::XButton2) {
1048             emit goForwardRequested();
1049         }
1050     }
1051 }
1052
1053 void DolphinView::slotSelectionChanged(const QSet<int>& current, const QSet<int>& previous)
1054 {
1055     const int currentCount = current.count();
1056     const int previousCount = previous.count();
1057     const bool selectionStateChanged = (currentCount == 0 && previousCount  > 0) ||
1058                                        (currentCount >  0 && previousCount == 0);
1059
1060     // If nothing has been selected before and something got selected (or if something
1061     // was selected before and now nothing is selected) the selectionChangedSignal must
1062     // be emitted asynchronously as fast as possible to update the edit-actions.
1063     m_selectionChangedTimer->setInterval(selectionStateChanged ? 0 : 300);
1064     m_selectionChangedTimer->start();
1065 }
1066
1067 void DolphinView::emitSelectionChangedSignal()
1068 {
1069     m_selectionChangedTimer->stop();
1070     emit selectionChanged(selectedItems());
1071 }
1072
1073 void DolphinView::updateSortRole(const QByteArray& role)
1074 {
1075     ViewProperties props(viewPropertiesUrl());
1076     props.setSortRole(role);
1077
1078     KItemModelBase* model = m_container->controller()->model();
1079     model->setSortRole(role);
1080
1081     emit sortRoleChanged(role);
1082 }
1083
1084 void DolphinView::updateSortOrder(Qt::SortOrder order)
1085 {
1086     ViewProperties props(viewPropertiesUrl());
1087     props.setSortOrder(order);
1088
1089     m_model->setSortOrder(order);
1090
1091     emit sortOrderChanged(order);
1092 }
1093
1094 void DolphinView::updateSortFoldersFirst(bool foldersFirst)
1095 {
1096     ViewProperties props(viewPropertiesUrl());
1097     props.setSortFoldersFirst(foldersFirst);
1098
1099     m_model->setSortDirectoriesFirst(foldersFirst);
1100
1101     emit sortFoldersFirstChanged(foldersFirst);
1102 }
1103
1104 QPair<bool, QString> DolphinView::pasteInfo() const
1105 {
1106     return KonqOperations::pasteInfo(url());
1107 }
1108
1109 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
1110 {
1111     m_tabsForFiles = tabsForFiles;
1112 }
1113
1114 bool DolphinView::isTabsForFilesEnabled() const
1115 {
1116     return m_tabsForFiles;
1117 }
1118
1119 bool DolphinView::itemsExpandable() const
1120 {
1121     return m_mode == DetailsView;
1122 }
1123
1124 void DolphinView::restoreState(QDataStream& stream)
1125 {
1126     // Restore the current item that had the keyboard focus
1127     stream >> m_currentItemUrl;
1128
1129     // Restore the view position
1130     stream >> m_restoredContentsPosition;
1131
1132     // Restore expanded folders (only relevant for the details view - will be ignored by the view in other view modes)
1133     QSet<KUrl> urls;
1134     stream >> urls;
1135     m_model->restoreExpandedDirectories(urls);
1136 }
1137
1138 void DolphinView::saveState(QDataStream& stream)
1139 {
1140     // Save the current item that has the keyboard focus
1141     const int currentIndex = m_container->controller()->selectionManager()->currentItem();
1142     if (currentIndex != -1) {
1143         KFileItem item = m_model->fileItem(currentIndex);
1144         Q_ASSERT(!item.isNull()); // If the current index is valid a item must exist
1145         KUrl currentItemUrl = item.url();
1146         stream << currentItemUrl;
1147     } else {
1148         stream << KUrl();
1149     }
1150
1151     // Save view position
1152     const qreal x = m_container->horizontalScrollBar()->value();
1153     const qreal y = m_container->verticalScrollBar()->value();
1154     stream << QPoint(x, y);
1155
1156     // Save expanded folders (only relevant for the details view - the set will be empty in other view modes)
1157     stream << m_model->expandedDirectories();
1158 }
1159
1160 KFileItem DolphinView::rootItem() const
1161 {
1162     return m_model->rootItem();
1163 }
1164
1165 void DolphinView::setViewPropertiesContext(const QString& context)
1166 {
1167     m_viewPropertiesContext = context;
1168 }
1169
1170 QString DolphinView::viewPropertiesContext() const
1171 {
1172     return m_viewPropertiesContext;
1173 }
1174
1175 void DolphinView::observeCreatedItem(const KUrl& url)
1176 {
1177     if (m_active) {
1178         clearSelection();
1179         markUrlAsCurrent(url);
1180         markUrlsAsSelected(QList<KUrl>() << url);
1181     }
1182 }
1183
1184 void DolphinView::slotDirectoryRedirection(const KUrl& oldUrl, const KUrl& newUrl)
1185 {
1186     if (oldUrl.equals(url(), KUrl::CompareWithoutTrailingSlash)) {
1187         emit redirection(oldUrl, newUrl);
1188         m_url = newUrl; // #186947
1189     }
1190 }
1191
1192 void DolphinView::updateViewState()
1193 {
1194     if (m_currentItemUrl != KUrl()) {
1195         KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
1196         const int currentIndex = m_model->index(m_currentItemUrl);
1197         if (currentIndex != -1) {
1198             selectionManager->setCurrentItem(currentIndex);
1199
1200             // scroll to current item and reset the state
1201             if (m_scrollToCurrentItem) {
1202                 m_view->scrollToItem(currentIndex);
1203                 m_scrollToCurrentItem = false;
1204             }
1205         } else {
1206             selectionManager->setCurrentItem(0);
1207         }
1208         m_currentItemUrl = KUrl();
1209     }
1210
1211     if (!m_restoredContentsPosition.isNull()) {
1212         const int x = m_restoredContentsPosition.x();
1213         const int y = m_restoredContentsPosition.y();
1214         m_restoredContentsPosition = QPoint();
1215
1216         m_container->horizontalScrollBar()->setValue(x);
1217         m_container->verticalScrollBar()->setValue(y);
1218     }
1219
1220     if (!m_selectedUrls.isEmpty()) {
1221         KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
1222
1223         if (m_clearSelectionBeforeSelectingNewItems) {
1224             selectionManager->clearSelection();
1225             m_clearSelectionBeforeSelectingNewItems = false;
1226         }
1227
1228         QSet<int> selectedItems = selectionManager->selectedItems();
1229
1230         for (QList<KUrl>::iterator it = m_selectedUrls.begin(); it != m_selectedUrls.end(); ++it) {
1231             const int index = m_model->index(*it);
1232             if (index >= 0) {
1233                 selectedItems.insert(index);
1234                 m_selectedUrls.erase(it);
1235             }
1236         }
1237
1238         selectionManager->setSelectedItems(selectedItems);
1239     }
1240 }
1241
1242 void DolphinView::hideToolTip()
1243 {
1244     if (GeneralSettings::showToolTips()) {
1245         m_toolTipManager->hideToolTip();
1246     }
1247 }
1248
1249 void DolphinView::calculateItemCount(int& fileCount,
1250                                      int& folderCount,
1251                                      KIO::filesize_t& totalFileSize) const
1252 {
1253     const int itemCount = m_model->count();
1254     for (int i = 0; i < itemCount; ++i) {
1255         const KFileItem item = m_model->fileItem(i);
1256         if (item.isDir()) {
1257             ++folderCount;
1258         } else {
1259             ++fileCount;
1260             totalFileSize += item.size();
1261         }
1262     }
1263 }
1264
1265 void DolphinView::showHoverInformation(const KFileItem& item)
1266 {
1267     emit requestItemInfo(item);
1268 }
1269
1270 void DolphinView::clearHoverInformation()
1271 {
1272     emit requestItemInfo(KFileItem());
1273 }
1274
1275 void DolphinView::slotDeleteFileFinished(KJob* job)
1276 {
1277     if (job->error() == 0) {
1278         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1279     } else if (job->error() != KIO::ERR_USER_CANCELED) {
1280         emit errorMessage(job->errorString());
1281     }
1282 }
1283
1284 void DolphinView::slotDirectoryLoadingStarted()
1285 {
1286     // Disable the writestate temporary until it can be determined in a fast way
1287     // in DolphinView::slotLoadingCompleted()
1288     if (m_isFolderWritable) {
1289         m_isFolderWritable = false;
1290         emit writeStateChanged(m_isFolderWritable);
1291     }
1292
1293     emit directoryLoadingStarted();
1294 }
1295
1296 void DolphinView::slotDirectoryLoadingCompleted()
1297 {
1298     // Update the view-state. This has to be done asynchronously
1299     // because the view might not be in its final state yet.
1300     QTimer::singleShot(0, this, SLOT(updateViewState()));
1301
1302     emit directoryLoadingCompleted();
1303
1304     updateWritableState();
1305 }
1306
1307 void DolphinView::slotItemsChanged()
1308 {
1309     m_assureVisibleCurrentIndex = false;
1310 }
1311
1312 void DolphinView::slotSortOrderChangedByHeader(Qt::SortOrder current, Qt::SortOrder previous)
1313 {
1314     Q_UNUSED(previous);
1315     Q_ASSERT(m_model->sortOrder() == current);
1316
1317     ViewProperties props(viewPropertiesUrl());
1318     props.setSortOrder(current);
1319
1320     emit sortOrderChanged(current);
1321 }
1322
1323 void DolphinView::slotSortRoleChangedByHeader(const QByteArray& current, const QByteArray& previous)
1324 {
1325     Q_UNUSED(previous);
1326     Q_ASSERT(m_model->sortRole() == current);
1327
1328     ViewProperties props(viewPropertiesUrl());
1329     props.setSortRole(current);
1330
1331     emit sortRoleChanged(current);
1332 }
1333
1334 void DolphinView::slotVisibleRolesChangedByHeader(const QList<QByteArray>& current,
1335                                                   const QList<QByteArray>& previous)
1336 {
1337     Q_UNUSED(previous);
1338     Q_ASSERT(m_container->controller()->view()->visibleRoles() == current);
1339
1340     const QList<QByteArray> previousVisibleRoles = m_visibleRoles;
1341
1342     m_visibleRoles = current;
1343
1344     ViewProperties props(viewPropertiesUrl());
1345     props.setVisibleRoles(m_visibleRoles);
1346
1347     emit visibleRolesChanged(m_visibleRoles, previousVisibleRoles);
1348 }
1349
1350 void DolphinView::slotRoleEditingFinished(int index, const QByteArray& role, const QVariant& value)
1351 {
1352     if (index < 0 || index >= m_model->count()) {
1353         return;
1354     }
1355
1356     if (role == "text") {
1357         const KFileItem oldItem = m_model->fileItem(index);
1358         const QString newName = value.toString();
1359         if (!newName.isEmpty() && newName != oldItem.text() && newName != QLatin1String(".") && newName != QLatin1String("..")) {
1360             const KUrl oldUrl = oldItem.url();
1361
1362             const KUrl newUrl(url().path(KUrl::AddTrailingSlash) + newName);
1363             const bool newNameExistsAlready = (m_model->index(newUrl) >= 0);
1364             if (!newNameExistsAlready) {
1365                 // Only change the data in the model if no item with the new name
1366                 // is in the model yet. If there is an item with the new name
1367                 // already, calling KonqOperations::rename() will open a dialog
1368                 // asking for a new name, and KFileItemModel will update the
1369                 // data when the dir lister signals that the file name has changed.
1370                 QHash<QByteArray, QVariant> data;
1371                 data.insert(role, value);
1372                 m_model->setData(index, data);
1373             }
1374
1375             KonqOperations::rename(this, oldUrl, newName);
1376         }
1377     }
1378 }
1379
1380 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1381 {
1382     if (!url.isValid()) {
1383         const QString location(url.pathOrUrl());
1384         if (location.isEmpty()) {
1385             emit errorMessage(i18nc("@info:status", "The location is empty."));
1386         } else {
1387             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1388         }
1389         return;
1390     }
1391
1392     if (reload) {
1393         m_model->refreshDirectory(url);
1394     } else {
1395         m_model->loadDirectory(url);
1396     }
1397 }
1398
1399 void DolphinView::applyViewProperties()
1400 {
1401     m_view->beginTransaction();
1402
1403     const ViewProperties props(viewPropertiesUrl());
1404
1405     const Mode mode = props.viewMode();
1406     if (m_mode != mode) {
1407         const Mode previousMode = m_mode;
1408         m_mode = mode;
1409
1410         // Changing the mode might result in changing
1411         // the zoom level. Remember the old zoom level so
1412         // that zoomLevelChanged() can get emitted.
1413         const int oldZoomLevel = m_view->zoomLevel();
1414         applyModeToView();
1415
1416         emit modeChanged(m_mode, previousMode);
1417
1418         if (m_view->zoomLevel() != oldZoomLevel) {
1419             emit zoomLevelChanged(m_view->zoomLevel(), oldZoomLevel);
1420         }
1421     }
1422
1423     const bool hiddenFilesShown = props.hiddenFilesShown();
1424     if (hiddenFilesShown != m_model->showHiddenFiles()) {
1425         m_model->setShowHiddenFiles(hiddenFilesShown);
1426         emit hiddenFilesShownChanged(hiddenFilesShown);
1427     }
1428
1429     const bool groupedSorting = props.groupedSorting();
1430     if (groupedSorting != m_model->groupedSorting()) {
1431         m_model->setGroupedSorting(groupedSorting);
1432         emit groupedSortingChanged(groupedSorting);
1433     }
1434
1435     const QByteArray sortRole = props.sortRole();
1436     if (sortRole != m_model->sortRole()) {
1437         m_model->setSortRole(sortRole);
1438         emit sortRoleChanged(sortRole);
1439     }
1440
1441     const Qt::SortOrder sortOrder = props.sortOrder();
1442     if (sortOrder != m_model->sortOrder()) {
1443         m_model->setSortOrder(sortOrder);
1444         emit sortOrderChanged(sortOrder);
1445     }
1446
1447     const bool sortFoldersFirst = props.sortFoldersFirst();
1448     if (sortFoldersFirst != m_model->sortDirectoriesFirst()) {
1449         m_model->setSortDirectoriesFirst(sortFoldersFirst);
1450         emit sortFoldersFirstChanged(sortFoldersFirst);
1451     }
1452
1453     const QList<QByteArray> visibleRoles = props.visibleRoles();
1454     if (visibleRoles != m_visibleRoles) {
1455         const QList<QByteArray> previousVisibleRoles = m_visibleRoles;
1456         m_visibleRoles = visibleRoles;
1457         m_view->setVisibleRoles(visibleRoles);
1458         emit visibleRolesChanged(m_visibleRoles, previousVisibleRoles);
1459     }
1460
1461     const bool previewsShown = props.previewsShown();
1462     if (previewsShown != m_view->previewsShown()) {
1463         const int oldZoomLevel = zoomLevel();
1464
1465         m_view->setPreviewsShown(previewsShown);
1466         emit previewsShownChanged(previewsShown);
1467
1468         // Changing the preview-state might result in a changed zoom-level
1469         if (oldZoomLevel != zoomLevel()) {
1470             emit zoomLevelChanged(zoomLevel(), oldZoomLevel);
1471         }
1472     }
1473
1474     KItemListView* itemListView = m_container->controller()->view();
1475     if (itemListView->isHeaderVisible()) {
1476         KItemListHeader* header = itemListView->header();
1477         const QList<int> headerColumnWidths = props.headerColumnWidths();
1478         const int rolesCount = m_visibleRoles.count();
1479         if (headerColumnWidths.count() == rolesCount) {
1480             header->setAutomaticColumnResizing(false);
1481
1482             QHash<QByteArray, qreal> columnWidths;
1483             for (int i = 0; i < rolesCount; ++i) {
1484                 columnWidths.insert(m_visibleRoles[i], headerColumnWidths[i]);
1485             }
1486             header->setColumnWidths(columnWidths);
1487         } else {
1488             header->setAutomaticColumnResizing(true);
1489         }
1490     }
1491
1492     m_view->endTransaction();
1493 }
1494
1495 void DolphinView::applyModeToView()
1496 {
1497     switch (m_mode) {
1498     case IconsView:   m_view->setItemLayout(KFileItemListView::IconsLayout); break;
1499     case CompactView: m_view->setItemLayout(KFileItemListView::CompactLayout); break;
1500     case DetailsView: m_view->setItemLayout(KFileItemListView::DetailsLayout); break;
1501     default: Q_ASSERT(false); break;
1502     }
1503 }
1504
1505 void DolphinView::pasteToUrl(const KUrl& url)
1506 {
1507     markPastedUrlsAsSelected(QApplication::clipboard()->mimeData());
1508     KonqOperations::doPaste(this, url);
1509 }
1510
1511 KUrl::List DolphinView::simplifiedSelectedUrls() const
1512 {
1513     KUrl::List urls;
1514
1515     const KFileItemList items = selectedItems();
1516     foreach (const KFileItem& item, items) {
1517         urls.append(item.url());
1518     }
1519
1520     if (itemsExpandable()) {
1521         // TODO: Check if we still need KDirModel for this in KDE 5.0
1522         urls = KDirModel::simplifiedUrlList(urls);
1523     }
1524
1525     return urls;
1526 }
1527
1528 QMimeData* DolphinView::selectionMimeData() const
1529 {
1530     const KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
1531     const QSet<int> selectedIndexes = selectionManager->selectedItems();
1532
1533     return m_model->createMimeData(selectedIndexes);
1534 }
1535
1536 void DolphinView::markPastedUrlsAsSelected(const QMimeData* mimeData)
1537 {
1538     const KUrl::List sourceUrls = KUrl::List::fromMimeData(mimeData);
1539     KUrl::List destUrls;
1540     foreach (const KUrl& source, sourceUrls) {
1541         KUrl destination(url().url() + '/' + source.fileName());
1542         destUrls << destination;
1543     }
1544     markUrlsAsSelected(destUrls);
1545     m_clearSelectionBeforeSelectingNewItems = true;
1546 }
1547
1548 void DolphinView::updateWritableState()
1549 {
1550     const bool wasFolderWritable = m_isFolderWritable;
1551     m_isFolderWritable = true;
1552
1553     const KFileItem item = m_model->rootItem();
1554     if (!item.isNull()) {
1555         KFileItemListProperties capabilities(KFileItemList() << item);
1556         m_isFolderWritable = capabilities.supportsWriting();
1557     }
1558     if (m_isFolderWritable != wasFolderWritable) {
1559         emit writeStateChanged(m_isFolderWritable);
1560     }
1561 }
1562
1563 KUrl DolphinView::viewPropertiesUrl() const
1564 {
1565     if (m_viewPropertiesContext.isEmpty()) {
1566         return m_url;
1567     }
1568
1569     KUrl url;
1570     url.setProtocol(m_url.protocol());
1571     url.setPath(m_viewPropertiesContext);
1572     return url;
1573 }
1574
1575 #include "dolphinview.moc"