src/views/dolphinview.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006-2009 by Peter Penz <peter.penz@gmx.at>             *
   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 <QAbstractItemView>
  24 #include <QApplication>
  25 #include <QClipboard>
  26 #include <QKeyEvent>
  27 #include <QItemSelection>
  28 #include <QBoxLayout>
  29 #include <QTimer>
  30 #include <QScrollBar>
  31
  32 #include <kactioncollection.h>
  33 #include <kcolorscheme.h>
  34 #include <kdirlister.h>
  35 #include <kiconeffect.h>
  36 #include <kfileitem.h>
  37 #include <kfileitemlistproperties.h>
  38 #include <klocale.h>
  39 #include <kio/deletejob.h>
  40 #include <kio/netaccess.h>
  41 #include <kio/previewjob.h>
  42 #include <kjob.h>
  43 #include <kmenu.h>
  44 #include <kmessagebox.h>
  45 #include <konq_fileitemcapabilities.h>
  46 #include <konq_operations.h>
  47 #include <konqmimedata.h>
  48 #include <ktoggleaction.h>
  49 #include <kurl.h>
  50
  51 #include "additionalinfoaccessor.h"
  52 #include "dolphindirlister.h"
  53 #include "dolphinmodel.h"
  54 #include "dolphincolumnviewcontainer.h"
  55 #include "dolphinviewcontroller.h"
  56 #include "dolphindetailsview.h"
  57 #include "dolphinfileitemdelegate.h"
  58 #include "dolphinnewfilemenuobserver.h"
  59 #include "dolphinsortfilterproxymodel.h"
  60 #include "dolphin_detailsmodesettings.h"
  61 #include "dolphiniconsview.h"
  62 #include "dolphin_generalsettings.h"
  63 #include "draganddrophelper.h"
  64 #include "renamedialog.h"
  65 #include "settings/dolphinsettings.h"
  66 #include "viewmodecontroller.h"
  67 #include "viewproperties.h"
  68 #include "zoomlevelinfo.h"
  69 #include "dolphindetailsviewexpander.h"
  70
  71 DolphinView::DolphinView(const KUrl& url, QWidget* parent) :
  72     QWidget(parent),
  73     m_active(true),
  74     m_showPreview(false),
  75     m_storedCategorizedSorting(false),
  76     m_tabsForFiles(false),
  77     m_isContextMenuOpen(false),
  78     m_assureVisibleCurrentIndex(false),
  79     m_expanderActive(false),
  80     m_isFolderWritable(true),
  81     m_mode(DolphinView::IconsView),
  82     m_topLayout(0),
  83     m_dolphinViewController(0),
  84     m_viewModeController(0),
  85     m_viewAccessor(),
  86     m_selectionChangedTimer(0),
  87     m_activeItemUrl(),
  88     m_restoredContentsPosition(),
  89     m_createdItemUrl(),
  90     m_selectedItems(),
  91     m_newFileNames()
  92 {
  93     m_topLayout = new QVBoxLayout(this);
  94     m_topLayout->setSpacing(0);
  95     m_topLayout->setMargin(0);
  96
  97     m_dolphinViewController = new DolphinViewController(this);
  98
  99     m_viewModeController = new ViewModeController(this);
 100     m_viewModeController->setUrl(url);
 101
 102     connect(m_viewModeController, SIGNAL(urlChanged(const KUrl&)),
 103             this, SIGNAL(urlChanged(const KUrl&)));
 104
 105     connect(m_dolphinViewController, SIGNAL(requestContextMenu(const QPoint&, const QList<QAction*>&)),
 106             this, SLOT(openContextMenu(const QPoint&, const QList<QAction*>&)));
 107     connect(m_dolphinViewController, SIGNAL(urlsDropped(const KFileItem&, const KUrl&, QDropEvent*)),
 108             this, SLOT(dropUrls(const KFileItem&, const KUrl&, QDropEvent*)));
 109     connect(m_dolphinViewController, SIGNAL(sortingChanged(DolphinView::Sorting)),
 110             this, SLOT(updateSorting(DolphinView::Sorting)));
 111     connect(m_dolphinViewController, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 112             this, SLOT(updateSortOrder(Qt::SortOrder)));
 113     connect(m_dolphinViewController, SIGNAL(sortFoldersFirstChanged(bool)),
 114             this, SLOT(updateSortFoldersFirst(bool)));
 115     connect(m_dolphinViewController, SIGNAL(additionalInfoChanged(const KFileItemDelegate::InformationList&)),
 116             this, SLOT(updateAdditionalInfo(const KFileItemDelegate::InformationList&)));
 117     connect(m_dolphinViewController, SIGNAL(itemTriggered(const KFileItem&)),
 118             this, SLOT(triggerItem(const KFileItem&)));
 119     connect(m_dolphinViewController, SIGNAL(tabRequested(const KUrl&)),
 120             this, SIGNAL(tabRequested(const KUrl&)));
 121     connect(m_dolphinViewController, SIGNAL(activated()),
 122             this, SLOT(activate()));
 123     connect(m_dolphinViewController, SIGNAL(itemEntered(const KFileItem&)),
 124             this, SLOT(showHoverInformation(const KFileItem&)));
 125     connect(m_dolphinViewController, SIGNAL(viewportEntered()),
 126             this, SLOT(clearHoverInformation()));
 127     connect(m_dolphinViewController, SIGNAL(urlChangeRequested(KUrl)),
 128             this, SLOT(slotUrlChangeRequested(KUrl)));
 129
 130     // When a new item has been created by the "Create New..." menu, the item should
 131     // get selected and it must be assured that the item will get visible. As the
 132     // creation is done asynchronously, several signals must be checked:
 133     connect(&DolphinNewFileMenuObserver::instance(), SIGNAL(itemCreated(const KUrl&)),
 134             this, SLOT(observeCreatedItem(const KUrl&)));
 135
 136     m_selectionChangedTimer = new QTimer(this);
 137     m_selectionChangedTimer->setSingleShot(true);
 138     m_selectionChangedTimer->setInterval(300);
 139     connect(m_selectionChangedTimer, SIGNAL(timeout()),
 140             this, SLOT(emitSelectionChangedSignal()));
 141
 142     applyViewProperties();
 143     m_topLayout->addWidget(m_viewAccessor.layoutTarget());
 144 }
 145
 146 DolphinView::~DolphinView()
 147 {
 148 }
 149
 150 KUrl DolphinView::url() const
 151 {
 152     return m_viewModeController->url();
 153 }
 154
 155 KUrl DolphinView::rootUrl() const
 156 {
 157     const KUrl viewUrl = url();
 158     const KUrl root = m_viewAccessor.rootUrl();
 159     if (root.isEmpty() || !root.isParentOf(viewUrl)) {
 160         return viewUrl;
 161     }
 162     return root;
 163 }
 164
 165 void DolphinView::setActive(bool active)
 166 {
 167     if (active == m_active) {
 168         return;
 169     }
 170
 171     m_active = active;
 172
 173     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 174     if (!active) {
 175         color.setAlpha(150);
 176     }
 177
 178     QWidget* viewport = m_viewAccessor.itemView()->viewport();
 179     QPalette palette;
 180     palette.setColor(viewport->backgroundRole(), color);
 181     viewport->setPalette(palette);
 182
 183     update();
 184
 185     if (active) {
 186         m_viewAccessor.itemView()->setFocus();
 187         emit activated();
 188         emitSelectionChangedSignal();
 189         emit writeStateChanged(m_isFolderWritable);
 190     }
 191
 192     m_viewModeController->indicateActivationChange(active);
 193 }
 194
 195 bool DolphinView::isActive() const
 196 {
 197     return m_active;
 198 }
 199
 200 void DolphinView::setMode(Mode mode)
 201 {
 202     if (mode == m_mode) {
 203         return; // the wished mode is already set
 204     }
 205
 206     const int oldZoomLevel = m_viewModeController->zoomLevel();
 207     m_mode = mode;
 208
 209     // remember the currently selected items, so that they will
 210     // be restored after reloading the directory
 211     m_selectedItems = selectedItems();
 212
 213     const bool hasFocus = m_viewAccessor.itemView()->hasFocus();
 214     deleteView();
 215
 216     const KUrl viewPropsUrl = rootUrl();
 217     ViewProperties props(viewPropsUrl);
 218     props.setViewMode(m_mode);
 219     createView();
 220
 221     if (hasFocus) {
 222         m_viewAccessor.itemView()->setFocus();
 223     }
 224
 225     // the file item delegate has been recreated, apply the current
 226     // additional information manually
 227     const KFileItemDelegate::InformationList infoList = props.additionalInfo();
 228     m_viewAccessor.itemDelegate()->setShowInformation(infoList);
 229     emit additionalInfoChanged();
 230
 231     // Not all view modes support categorized sorting. Adjust the sorting model
 232     // if changing the view mode results in a change of the categorized sorting
 233     // capabilities.
 234     m_storedCategorizedSorting = props.categorizedSorting();
 235     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 236     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
 237         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 238         emit categorizedSortingChanged();
 239     }
 240
 241     emit modeChanged();
 242
 243     updateZoomLevel(oldZoomLevel);
 244     loadDirectory(viewPropsUrl);
 245 }
 246
 247 DolphinView::Mode DolphinView::mode() const
 248 {
 249     return m_mode;
 250 }
 251
 252 bool DolphinView::showPreview() const
 253 {
 254     return m_showPreview;
 255 }
 256
 257 bool DolphinView::showHiddenFiles() const
 258 {
 259     return m_viewAccessor.dirLister()->showingDotFiles();
 260 }
 261
 262 bool DolphinView::categorizedSorting() const
 263 {
 264     // If all view modes would support categorized sorting, returning
 265     // m_viewAccessor.proxyModel()->isCategorizedModel() would be the way to go. As
 266     // currently only the icons view supports caterized sorting, we remember
 267     // the stored view properties state in m_storedCategorizedSorting and
 268     // return this state. The application takes care to disable the corresponding
 269     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 270     // that this setting is not applied to the current view mode.
 271     return m_storedCategorizedSorting;
 272 }
 273
 274 bool DolphinView::supportsCategorizedSorting() const
 275 {
 276     return m_viewAccessor.supportsCategorizedSorting();
 277 }
 278
 279 KFileItem DolphinView::rootItem() const
 280 {
 281     return m_viewAccessor.dirLister()->rootItem();
 282 }
 283
 284 KFileItemList DolphinView::items() const
 285 {
 286     return m_viewAccessor.dirLister()->items();
 287 }
 288
 289 KFileItemList DolphinView::selectedItems() const
 290 {
 291     KFileItemList itemList;
 292     const QAbstractItemView* view = m_viewAccessor.itemView();
 293     if (view == 0) {
 294         return itemList;
 295     }
 296
 297     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
 298
 299     const QModelIndexList indexList = selection.indexes();
 300     foreach (const QModelIndex &index, indexList) {
 301         KFileItem item = m_viewAccessor.dirModel()->itemForIndex(index);
 302         if (!item.isNull()) {
 303             itemList.append(item);
 304         }
 305     }
 306
 307     return itemList;
 308 }
 309
 310 int DolphinView::selectedItemsCount() const
 311 {
 312     const QAbstractItemView* view = m_viewAccessor.itemView();
 313     if (view == 0) {
 314         return 0;
 315     }
 316
 317     return view->selectionModel()->selectedIndexes().count();
 318 }
 319
 320 void DolphinView::markUrlsAsSelected(const QList<KUrl>& urls)
 321 {
 322     foreach (const KUrl& url, urls) {
 323         KFileItem item(KFileItem::Unknown, KFileItem::Unknown, url);
 324         m_selectedItems.append(item);
 325     }
 326 }
 327
 328 void DolphinView::setItemSelectionEnabled(const QRegExp& pattern, bool enabled)
 329 {
 330     const QItemSelection matchingIndexes = childrenMatchingPattern(QModelIndex(), pattern);
 331     const QItemSelectionModel::SelectionFlags command = enabled
 332                                                       ? QItemSelectionModel::Select
 333                                                       : QItemSelectionModel::Deselect;
 334     m_viewAccessor.itemView()->selectionModel()->select(matchingIndexes, command);
 335 }
 336
 337 void DolphinView::setZoomLevel(int level)
 338 {
 339     if (level < ZoomLevelInfo::minimumLevel()) {
 340         level = ZoomLevelInfo::minimumLevel();
 341     } else if (level > ZoomLevelInfo::maximumLevel()) {
 342         level = ZoomLevelInfo::maximumLevel();
 343     }
 344
 345     if (level != zoomLevel()) {
 346         m_viewModeController->setZoomLevel(level);
 347         emit zoomLevelChanged(level);
 348     }
 349 }
 350
 351 int DolphinView::zoomLevel() const
 352 {
 353     return m_viewModeController->zoomLevel();
 354 }
 355
 356 void DolphinView::setSorting(Sorting sorting)
 357 {
 358     if (sorting != this->sorting()) {
 359         updateSorting(sorting);
 360     }
 361 }
 362
 363 DolphinView::Sorting DolphinView::sorting() const
 364 {
 365     return m_viewAccessor.proxyModel()->sorting();
 366 }
 367
 368 void DolphinView::setSortOrder(Qt::SortOrder order)
 369 {
 370     if (sortOrder() != order) {
 371         updateSortOrder(order);
 372     }
 373 }
 374
 375 Qt::SortOrder DolphinView::sortOrder() const
 376 {
 377     return m_viewAccessor.proxyModel()->sortOrder();
 378 }
 379
 380 void DolphinView::setSortFoldersFirst(bool foldersFirst)
 381 {
 382     if (sortFoldersFirst() != foldersFirst) {
 383         updateSortFoldersFirst(foldersFirst);
 384     }
 385 }
 386
 387 bool DolphinView::sortFoldersFirst() const
 388 {
 389     return m_viewAccessor.proxyModel()->sortFoldersFirst();
 390 }
 391
 392 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 393 {
 394     const KUrl viewPropsUrl = rootUrl();
 395     ViewProperties props(viewPropsUrl);
 396     props.setAdditionalInfo(info);
 397     m_viewAccessor.itemDelegate()->setShowInformation(info);
 398
 399     emit additionalInfoChanged();
 400
 401     if (m_viewAccessor.reloadOnAdditionalInfoChange()) {
 402         loadDirectory(viewPropsUrl);
 403     }
 404 }
 405
 406 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 407 {
 408     return m_viewAccessor.itemDelegate()->showInformation();
 409 }
 410
 411 void DolphinView::reload()
 412 {
 413     QByteArray viewState;
 414     QDataStream saveStream(&viewState, QIODevice::WriteOnly);
 415     saveState(saveStream);
 416     m_selectedItems= selectedItems();
 417
 418     setUrl(url());
 419     loadDirectory(url(), true);
 420
 421     QDataStream restoreStream(viewState);
 422     restoreState(restoreStream);
 423 }
 424
 425 void DolphinView::stopLoading()
 426 {
 427     m_viewAccessor.dirLister()->stop();
 428 }
 429
 430 void DolphinView::refresh()
 431 {
 432     const bool oldActivationState = m_active;
 433     const int oldZoomLevel = m_viewModeController->zoomLevel();
 434     m_active = true;
 435
 436     createView();
 437     applyViewProperties();
 438     reload();
 439
 440     setActive(oldActivationState);
 441     updateZoomLevel(oldZoomLevel);
 442 }
 443
 444 void DolphinView::setNameFilter(const QString& nameFilter)
 445 {
 446     m_viewModeController->setNameFilter(nameFilter);
 447 }
 448
 449 QString DolphinView::nameFilter() const
 450 {
 451     return m_viewModeController->nameFilter();
 452 }
 453
 454 void DolphinView::calculateItemCount(int& fileCount,
 455                                      int& folderCount,
 456                                      KIO::filesize_t& totalFileSize) const
 457 {
 458     foreach (const KFileItem& item, m_viewAccessor.dirLister()->items()) {
 459         if (item.isDir()) {
 460             ++folderCount;
 461         } else {
 462             ++fileCount;
 463             totalFileSize += item.size();
 464         }
 465     }
 466 }
 467
 468 QString DolphinView::statusBarText() const
 469 {
 470     QString text;
 471     int folderCount = 0;
 472     int fileCount = 0;
 473     KIO::filesize_t totalFileSize = 0;
 474
 475     if (hasSelection()) {
 476         // give a summary of the status of the selected files
 477         const KFileItemList list = selectedItems();
 478         if (list.isEmpty()) {
 479             // when an item is triggered, it is temporary selected but selectedItems()
 480             // will return an empty list
 481             return text;
 482         }
 483
 484         KFileItemList::const_iterator it = list.begin();
 485         const KFileItemList::const_iterator end = list.end();
 486         while (it != end) {
 487             const KFileItem& item = *it;
 488             if (item.isDir()) {
 489                 ++folderCount;
 490             } else {
 491                 ++fileCount;
 492                 totalFileSize += item.size();
 493             }
 494             ++it;
 495         }
 496
 497         if (folderCount + fileCount == 1) {
 498             // if only one item is selected, show the filename
 499             const QString name = list.first().text();
 500             text = (folderCount == 1) ? i18nc("@info:status", "<filename>%1</filename> selected", name) :
 501                                         i18nc("@info:status", "<filename>%1</filename> selected (%2)",
 502                                               name, KIO::convertSize(totalFileSize));
 503         } else {
 504             // at least 2 items are selected
 505             const QString foldersText = i18ncp("@info:status", "1 Folder selected", "%1 Folders selected", folderCount);
 506             const QString filesText = i18ncp("@info:status", "1 File selected", "%1 Files selected", fileCount);
 507             if ((folderCount > 0) && (fileCount > 0)) {
 508                 text = i18nc("@info:status folders, files (size)", "%1, %2 (%3)",
 509                              foldersText, filesText, KIO::convertSize(totalFileSize));
 510             } else if (fileCount > 0) {
 511                 text = i18nc("@info:status files (size)", "%1 (%2)", filesText, KIO::convertSize(totalFileSize));
 512             } else {
 513                 Q_ASSERT(folderCount > 0);
 514                 text = foldersText;
 515             }
 516         }
 517     } else {
 518         calculateItemCount(fileCount, folderCount, totalFileSize);
 519         text = KIO::itemsSummaryString(fileCount + folderCount,
 520                                        fileCount, folderCount,
 521                                        totalFileSize, true);
 522     }
 523
 524     return text;
 525 }
 526
 527 QList<QAction*> DolphinView::versionControlActions(const KFileItemList& items) const
 528 {
 529     return m_dolphinViewController->versionControlActions(items);
 530 }
 531
 532 void DolphinView::setUrl(const KUrl& url)
 533 {
 534     if (m_viewModeController->url() == url) {
 535         return;
 536     }
 537
 538     const bool hadSelection = hasSelection();
 539
 540     // The selection model and directory lister might change in the case of the column view:
 541     disconnectViewAccessor();
 542
 543     m_newFileNames.clear();
 544
 545     m_viewModeController->setUrl(url); // emits urlChanged, which we forward
 546     m_viewAccessor.prepareUrlChange(url);
 547     applyViewProperties();
 548
 549     // When changing the URL there is no need to keep the version
 550     // data of the previous URL.
 551     m_viewAccessor.dirModel()->clearVersionData();
 552
 553     // Reconnect to the (probably) new selection model and directory lister
 554     connectViewAccessor();
 555     loadDirectory(url);
 556
 557     if (hadSelection || hasSelection()) {
 558         emitSelectionChangedSignal();
 559     }
 560 }
 561
 562 void DolphinView::selectAll()
 563 {
 564     m_viewAccessor.itemView()->selectAll();
 565 }
 566
 567 void DolphinView::invertSelection()
 568 {
 569     QItemSelectionModel* selectionModel = m_viewAccessor.itemView()->selectionModel();
 570     const QAbstractItemModel* itemModel = selectionModel->model();
 571
 572     const QModelIndex topLeft = itemModel->index(0, 0);
 573     const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 574                                                      itemModel->columnCount() - 1);
 575
 576     const QItemSelection selection(topLeft, bottomRight);
 577     selectionModel->select(selection, QItemSelectionModel::Toggle);
 578 }
 579
 580 void DolphinView::clearSelection()
 581 {
 582     m_viewAccessor.itemView()->clearSelection();
 583 }
 584
 585 void DolphinView::renameSelectedItems()
 586 {
 587     KFileItemList items = selectedItems();
 588     const int itemCount = items.count();
 589     if (itemCount < 1) {
 590         return;
 591     }
 592
 593     if ((itemCount == 1) && DolphinSettings::instance().generalSettings()->renameInline()) {
 594         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForItem(items.first());
 595         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
 596         m_viewAccessor.itemView()->edit(proxyIndex);
 597     } else {
 598         RenameDialog* dialog = new RenameDialog(this, items);
 599         dialog->setAttribute(Qt::WA_DeleteOnClose);
 600         dialog->show();
 601         dialog->raise();
 602         dialog->activateWindow();
 603     }
 604 }
 605
 606 void DolphinView::trashSelectedItems()
 607 {
 608     const KUrl::List list = simplifiedSelectedUrls();
 609     KonqOperations::del(this, KonqOperations::TRASH, list);
 610 }
 611
 612 void DolphinView::deleteSelectedItems()
 613 {
 614     const KUrl::List list = simplifiedSelectedUrls();
 615     const bool del = KonqOperations::askDeleteConfirmation(list,
 616                      KonqOperations::DEL,
 617                      KonqOperations::DEFAULT_CONFIRMATION,
 618                      this);
 619
 620     if (del) {
 621         KIO::Job* job = KIO::del(list);
 622         connect(job, SIGNAL(result(KJob*)),
 623                 this, SLOT(slotDeleteFileFinished(KJob*)));
 624     }
 625 }
 626
 627 void DolphinView::cutSelectedItems()
 628 {
 629     QMimeData* mimeData = selectionMimeData();
 630     KonqMimeData::addIsCutSelection(mimeData, true);
 631     QApplication::clipboard()->setMimeData(mimeData);
 632 }
 633
 634 void DolphinView::copySelectedItems()
 635 {
 636     QMimeData* mimeData = selectionMimeData();
 637     QApplication::clipboard()->setMimeData(mimeData);
 638 }
 639
 640 void DolphinView::paste()
 641 {
 642     pasteToUrl(url());
 643 }
 644
 645 void DolphinView::pasteIntoFolder()
 646 {
 647     const KFileItemList items = selectedItems();
 648     if ((items.count() == 1) && items.first().isDir()) {
 649         pasteToUrl(items.first().url());
 650     }
 651 }
 652
 653 void DolphinView::setShowPreview(bool show)
 654 {
 655     if (m_showPreview == show) {
 656         return;
 657     }
 658
 659     const KUrl viewPropsUrl = rootUrl();
 660     ViewProperties props(viewPropsUrl);
 661     props.setShowPreview(show);
 662
 663     m_showPreview = show;
 664     const int oldZoomLevel = m_viewModeController->zoomLevel();
 665     emit showPreviewChanged();
 666
 667     // Enabling or disabling the preview might change the icon size of the view.
 668     // As the view does not emit a signal when the icon size has been changed,
 669     // the used zoom level of the controller must be adjusted manually:
 670     updateZoomLevel(oldZoomLevel);
 671 }
 672
 673 void DolphinView::setShowHiddenFiles(bool show)
 674 {
 675     if (m_viewAccessor.dirLister()->showingDotFiles() == show) {
 676         return;
 677     }
 678
 679     const KUrl viewPropsUrl = rootUrl();
 680     ViewProperties props(viewPropsUrl);
 681     props.setShowHiddenFiles(show);
 682
 683     m_viewAccessor.dirLister()->setShowingDotFiles(show);
 684     emit showHiddenFilesChanged();
 685 }
 686
 687 void DolphinView::setCategorizedSorting(bool categorized)
 688 {
 689     if (categorized == categorizedSorting()) {
 690         return;
 691     }
 692
 693     // setCategorizedSorting(true) may only get invoked
 694     // if the view supports categorized sorting
 695     Q_ASSERT(!categorized || supportsCategorizedSorting());
 696
 697     ViewProperties props(rootUrl());
 698     props.setCategorizedSorting(categorized);
 699     props.save();
 700
 701     m_storedCategorizedSorting = categorized;
 702     m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 703
 704     emit categorizedSortingChanged();
 705 }
 706
 707 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 708 {
 709     QWidget::mouseReleaseEvent(event);
 710     setActive(true);
 711 }
 712
 713 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 714 {
 715     switch (event->type()) {
 716     case QEvent::FocusIn:
 717         if (watched == m_viewAccessor.itemView()) {
 718             m_dolphinViewController->requestActivation();
 719         }
 720         break;
 721
 722     case QEvent::DragEnter:
 723         if (watched == m_viewAccessor.itemView()->viewport()) {
 724             setActive(true);
 725         }
 726         break;
 727
 728     case QEvent::KeyPress:
 729         if (watched == m_viewAccessor.itemView()) {
 730             // clear the selection when Escape has been pressed
 731             QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
 732             if (keyEvent->key() == Qt::Key_Escape) {
 733                 clearSelection();
 734             }
 735         }
 736         break;
 737
 738     case QEvent::Wheel:
 739         if (watched == m_viewAccessor.itemView()->viewport()) {
 740             // Ctrl+wheel events should cause icon zooming, but not if the left mouse button is pressed
 741             // (the user is probably trying to scroll during a selection in that case)
 742             QWheelEvent* wheelEvent = static_cast<QWheelEvent*>(event);
 743             if (wheelEvent->modifiers() & Qt::ControlModifier && !(wheelEvent->buttons() & Qt::LeftButton)) {
 744                 const int delta = wheelEvent->delta();
 745                 const int level = zoomLevel();
 746                 if (delta > 0) {
 747                     setZoomLevel(level + 1);
 748                 } else if (delta < 0) {
 749                     setZoomLevel(level - 1);
 750                 }
 751                 return true;
 752             }
 753         }
 754         break;
 755
 756     default:
 757         break;
 758     }
 759
 760     return QWidget::eventFilter(watched, event);
 761 }
 762
 763 void DolphinView::activate()
 764 {
 765     setActive(true);
 766 }
 767
 768 void DolphinView::triggerItem(const KFileItem& item)
 769 {
 770     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 771     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 772         // items are selected by the user, hence don't trigger the
 773         // item specified by 'index'
 774         return;
 775     }
 776
 777     // TODO: the m_isContextMenuOpen check is a workaround for Qt-issue 207192
 778     if (item.isNull() || m_isContextMenuOpen) {
 779         return;
 780     }
 781
 782     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 783 }
 784
 785 void DolphinView::slotSelectionChanged(const QItemSelection& selected, const QItemSelection& deselected)
 786 {
 787     const int count = selectedItemsCount();
 788     const bool selectionStateChanged = ((count >  0) && (selected.count() == count)) ||
 789                                        ((count == 0) && !deselected.isEmpty());
 790
 791     // If nothing has been selected before and something got selected (or if something
 792     // was selected before and now nothing is selected) the selectionChangedSignal must
 793     // be emitted asynchronously as fast as possible to update the edit-actions.
 794     m_selectionChangedTimer->setInterval(selectionStateChanged ? 0 : 300);
 795     m_selectionChangedTimer->start();
 796 }
 797
 798 void DolphinView::emitSelectionChangedSignal()
 799 {
 800     m_selectionChangedTimer->stop();
 801     emit selectionChanged(selectedItems());
 802 }
 803
 804 void DolphinView::openContextMenu(const QPoint& pos,
 805                                   const QList<QAction*>& customActions)
 806 {
 807     KFileItem item;
 808     const QModelIndex index = m_viewAccessor.itemView()->indexAt(pos);
 809     if (index.isValid() && (index.column() == DolphinModel::Name)) {
 810         const QModelIndex dolphinModelIndex = m_viewAccessor.proxyModel()->mapToSource(index);
 811         item = m_viewAccessor.dirModel()->itemForIndex(dolphinModelIndex);
 812     }
 813
 814     m_isContextMenuOpen = true; // TODO: workaround for Qt-issue 207192
 815     emit requestContextMenu(item, url(), customActions);
 816     m_isContextMenuOpen = false;
 817 }
 818
 819 void DolphinView::dropUrls(const KFileItem& destItem,
 820                            const KUrl& destPath,
 821                            QDropEvent* event)
 822 {
 823     addNewFileNames(event->mimeData());
 824     DragAndDropHelper::instance().dropUrls(destItem, destPath, event, this);
 825 }
 826
 827 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 828 {
 829     ViewProperties props(rootUrl());
 830     props.setSorting(sorting);
 831
 832     m_viewAccessor.proxyModel()->setSorting(sorting);
 833
 834     emit sortingChanged(sorting);
 835 }
 836
 837 void DolphinView::updateSortOrder(Qt::SortOrder order)
 838 {
 839     ViewProperties props(rootUrl());
 840     props.setSortOrder(order);
 841
 842     m_viewAccessor.proxyModel()->setSortOrder(order);
 843
 844     emit sortOrderChanged(order);
 845 }
 846
 847 void DolphinView::updateSortFoldersFirst(bool foldersFirst)
 848 {
 849     ViewProperties props(rootUrl());
 850     props.setSortFoldersFirst(foldersFirst);
 851
 852     m_viewAccessor.proxyModel()->setSortFoldersFirst(foldersFirst);
 853
 854     emit sortFoldersFirstChanged(foldersFirst);
 855 }
 856
 857 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 858 {
 859     ViewProperties props(rootUrl());
 860     props.setAdditionalInfo(info);
 861     props.save();
 862
 863     m_viewAccessor.itemDelegate()->setShowInformation(info);
 864
 865     emit additionalInfoChanged();
 866 }
 867
 868 void DolphinView::updateAdditionalInfoActions(KActionCollection* collection)
 869 {
 870     const AdditionalInfoAccessor& infoAccessor = AdditionalInfoAccessor::instance();
 871
 872     const KFileItemDelegate::InformationList checkedInfo = m_viewAccessor.itemDelegate()->showInformation();
 873     const KFileItemDelegate::InformationList infoKeys = infoAccessor.keys();
 874
 875     const bool enable = (m_mode == DolphinView::DetailsView) ||
 876                         (m_mode == DolphinView::IconsView);
 877
 878     foreach (const KFileItemDelegate::Information& info, infoKeys) {
 879         const QString name = infoAccessor.actionCollectionName(info, AdditionalInfoAccessor::AdditionalInfoType);
 880         QAction* action = collection->action(name);
 881         Q_ASSERT(action != 0);
 882         action->setEnabled(enable);
 883         action->setChecked(checkedInfo.contains(info));
 884     }
 885 }
 886
 887 QPair<bool, QString> DolphinView::pasteInfo() const
 888 {
 889     return KonqOperations::pasteInfo(url());
 890 }
 891
 892 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
 893 {
 894     m_tabsForFiles = tabsForFiles;
 895 }
 896
 897 bool DolphinView::isTabsForFilesEnabled() const
 898 {
 899     return m_tabsForFiles;
 900 }
 901
 902 bool DolphinView::itemsExpandable() const
 903 {
 904     return m_viewAccessor.itemsExpandable();
 905 }
 906
 907 void DolphinView::restoreState(QDataStream& stream)
 908 {
 909     // Restore the URL of the current item that had the keyboard focus
 910     stream >> m_activeItemUrl;
 911
 912     // Restore the root URL
 913     KUrl rootUrl;
 914     stream >> rootUrl;
 915     m_viewAccessor.setRootUrl(rootUrl);
 916
 917     // Restore the view position
 918     stream >> m_restoredContentsPosition;
 919
 920     // Restore expanded folders (only relevant for the details view - will be ignored by the view in other view modes)
 921     QSet<KUrl> urlsToExpand;
 922     stream >> urlsToExpand;
 923     const DolphinDetailsViewExpander* expander = m_viewAccessor.setExpandedUrls(urlsToExpand);
 924     if (expander != 0) {
 925         m_expanderActive = true;
 926         connect (expander, SIGNAL(completed()), this, SLOT(slotLoadingCompleted()));
 927     }
 928     else {
 929         m_expanderActive = false;
 930     }
 931 }
 932
 933 void DolphinView::saveState(QDataStream& stream)
 934 {
 935     // Save the URL of the current item that has the keyboard focus
 936     KFileItem currentItem;
 937     const QAbstractItemView* view = m_viewAccessor.itemView();
 938
 939     if (view != 0) {
 940         const QModelIndex proxyIndex = view->currentIndex();
 941         const QModelIndex dirModelIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
 942         currentItem = m_viewAccessor.dirModel()->itemForIndex(dirModelIndex);
 943     }
 944
 945     KUrl currentItemUrl;
 946     if (!currentItem.isNull()) {
 947         currentItemUrl = currentItem.url();
 948     }
 949
 950     stream << currentItemUrl;
 951
 952     // Save the root URL
 953     stream << m_viewAccessor.rootUrl();
 954
 955     // Save view position
 956     const int x = view->horizontalScrollBar()->value();
 957     const int y = view->verticalScrollBar()->value();
 958     stream << QPoint(x, y);
 959
 960     // Save expanded folders (only relevant for the details view - the set will be empty in other view modes)
 961     stream << m_viewAccessor.expandedUrls();
 962 }
 963
 964 bool DolphinView::hasSelection() const
 965 {
 966     const QAbstractItemView* view = m_viewAccessor.itemView();
 967     return (view != 0) && view->selectionModel()->hasSelection();
 968 }
 969
 970 void DolphinView::observeCreatedItem(const KUrl& url)
 971 {
 972     m_createdItemUrl = url;
 973     connect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
 974             this, SLOT(selectAndScrollToCreatedItem()));
 975 }
 976
 977 void DolphinView::selectAndScrollToCreatedItem()
 978 {
 979     const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_createdItemUrl);
 980     if (dirIndex.isValid()) {
 981         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
 982         m_viewAccessor.itemView()->setCurrentIndex(proxyIndex);
 983     }
 984
 985     disconnect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
 986                this, SLOT(selectAndScrollToCreatedItem()));
 987     m_createdItemUrl = KUrl();
 988 }
 989
 990 void DolphinView::slotRedirection(const KUrl& oldUrl, const KUrl& newUrl)
 991 {
 992     if (oldUrl.equals(url(), KUrl::CompareWithoutTrailingSlash)) {
 993         emit redirection(oldUrl, newUrl);
 994         m_viewModeController->redirectToUrl(newUrl); // #186947
 995     }
 996 }
 997
 998 void DolphinView::restoreContentsPosition()
 999 {
1000     if (!m_restoredContentsPosition.isNull()) {
1001         const int x = m_restoredContentsPosition.x();
1002         const int y = m_restoredContentsPosition.y();
1003         m_restoredContentsPosition = QPoint();
1004
1005         QAbstractItemView* view = m_viewAccessor.itemView();
1006         Q_ASSERT(view != 0);
1007         view->horizontalScrollBar()->setValue(x);
1008         view->verticalScrollBar()->setValue(y);
1009     }
1010 }
1011
1012 void DolphinView::slotUrlChangeRequested(const KUrl& url)
1013 {
1014     m_viewModeController->setUrl(url);
1015     updateWritableState();
1016 }
1017
1018 void DolphinView::showHoverInformation(const KFileItem& item)
1019 {
1020     emit requestItemInfo(item);
1021 }
1022
1023 void DolphinView::clearHoverInformation()
1024 {
1025     emit requestItemInfo(KFileItem());
1026 }
1027
1028 void DolphinView::slotDeleteFileFinished(KJob* job)
1029 {
1030     if (job->error() == 0) {
1031         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1032     } else if (job->error() != KIO::ERR_USER_CANCELED) {
1033         emit errorMessage(job->errorString());
1034     }
1035 }
1036
1037 void DolphinView::slotDirListerStarted(const KUrl& url)
1038 {
1039     // Disable the writestate temporary until it can be determined in a fast way
1040     // in DolphinView::slotDirListerCompleted()
1041     if (m_isFolderWritable) {
1042         m_isFolderWritable = false;
1043         emit writeStateChanged(m_isFolderWritable);
1044     }
1045
1046     emit startedPathLoading(url);
1047 }
1048
1049 void DolphinView::slotDirListerCompleted()
1050 {
1051     if (!m_expanderActive) {
1052         slotLoadingCompleted();
1053     }
1054
1055     if (!m_newFileNames.isEmpty()) {
1056         // select all newly added items created by a paste operation or
1057         // a drag & drop operation, and clear the previous selection
1058         m_viewAccessor.itemView()->clearSelection();
1059         const int rowCount = m_viewAccessor.proxyModel()->rowCount();
1060         QItemSelection selection;
1061         for (int row = 0; row < rowCount; ++row) {
1062             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->index(row, 0);
1063             const QModelIndex dirIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
1064             const KUrl url = m_viewAccessor.dirModel()->itemForIndex(dirIndex).url();
1065             if (m_newFileNames.contains(url.fileName())) {
1066                 selection.merge(QItemSelection(proxyIndex, proxyIndex), QItemSelectionModel::Select);
1067             }
1068         }
1069         m_viewAccessor.itemView()->selectionModel()->select(selection, QItemSelectionModel::Select);
1070
1071         m_newFileNames.clear();
1072     }
1073
1074     updateWritableState();
1075 }
1076
1077 void DolphinView::slotLoadingCompleted()
1078 {
1079     m_expanderActive = false;
1080
1081     if (!m_activeItemUrl.isEmpty()) {
1082         // assure that the current item remains visible
1083         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_activeItemUrl);
1084         if (dirIndex.isValid()) {
1085             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1086             QAbstractItemView* view = m_viewAccessor.itemView();
1087             const bool clearSelection = !hasSelection();
1088             view->setCurrentIndex(proxyIndex);
1089             if (clearSelection) {
1090                 view->clearSelection();
1091             }
1092             m_activeItemUrl.clear();
1093         }
1094     }
1095
1096     if (!m_selectedItems.isEmpty()) {
1097         const KUrl& baseUrl = url();
1098         KUrl url;
1099         QItemSelection newSelection;
1100         foreach(const KFileItem& item, m_selectedItems) {
1101             url = item.url().upUrl();
1102             if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
1103                 QModelIndex index = m_viewAccessor.proxyModel()->mapFromSource(m_viewAccessor.dirModel()->indexForItem(item));
1104                 newSelection.select(index, index);
1105             }
1106         }
1107         m_viewAccessor.itemView()->selectionModel()->select(newSelection,
1108                                                             QItemSelectionModel::ClearAndSelect
1109                                                             | QItemSelectionModel::Current);
1110         m_selectedItems.clear();
1111     }
1112
1113     // Restore the contents position. This has to be done using a Qt::QueuedConnection
1114     // because the view might not be in its final state yet.
1115     QMetaObject::invokeMethod(this, "restoreContentsPosition", Qt::QueuedConnection);
1116
1117     emit finishedPathLoading(url());
1118 }
1119
1120 void DolphinView::slotRefreshItems()
1121 {
1122     if (m_assureVisibleCurrentIndex) {
1123         m_assureVisibleCurrentIndex = false;
1124         m_viewAccessor.itemView()->scrollTo(m_viewAccessor.itemView()->currentIndex());
1125     }
1126 }
1127
1128 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1129 {
1130     if (!url.isValid()) {
1131         const QString location(url.pathOrUrl());
1132         if (location.isEmpty()) {
1133             emit errorMessage(i18nc("@info:status", "The location is empty."));
1134         } else {
1135             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1136         }
1137         return;
1138     }
1139
1140     KDirLister* dirLister = m_viewAccessor.dirLister();
1141     dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
1142 }
1143
1144 void DolphinView::applyViewProperties()
1145 {
1146     const ViewProperties props(rootUrl());
1147
1148     const Mode mode = props.viewMode();
1149     if (m_mode != mode) {
1150         const int oldZoomLevel = m_viewModeController->zoomLevel();
1151
1152         m_mode = mode;
1153         createView();
1154         emit modeChanged();
1155
1156         updateZoomLevel(oldZoomLevel);
1157     }
1158     if (m_viewAccessor.itemView() == 0) {
1159         createView();
1160     }
1161
1162     Q_ASSERT(m_viewAccessor.itemView() != 0);
1163     Q_ASSERT(m_viewAccessor.itemDelegate() != 0);
1164
1165     const bool showHiddenFiles = props.showHiddenFiles();
1166     if (showHiddenFiles != m_viewAccessor.dirLister()->showingDotFiles()) {
1167         m_viewAccessor.dirLister()->setShowingDotFiles(showHiddenFiles);
1168         emit showHiddenFilesChanged();
1169     }
1170
1171     m_storedCategorizedSorting = props.categorizedSorting();
1172     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1173     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
1174         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
1175         emit categorizedSortingChanged();
1176     }
1177
1178     const DolphinView::Sorting sorting = props.sorting();
1179     if (sorting != m_viewAccessor.proxyModel()->sorting()) {
1180         m_viewAccessor.proxyModel()->setSorting(sorting);
1181         emit sortingChanged(sorting);
1182     }
1183
1184     const Qt::SortOrder sortOrder = props.sortOrder();
1185     if (sortOrder != m_viewAccessor.proxyModel()->sortOrder()) {
1186         m_viewAccessor.proxyModel()->setSortOrder(sortOrder);
1187         emit sortOrderChanged(sortOrder);
1188     }
1189
1190     const bool sortFoldersFirst = props.sortFoldersFirst();
1191     if (sortFoldersFirst != m_viewAccessor.proxyModel()->sortFoldersFirst()) {
1192         m_viewAccessor.proxyModel()->setSortFoldersFirst(sortFoldersFirst);
1193         emit sortFoldersFirstChanged(sortFoldersFirst);
1194     }
1195
1196     KFileItemDelegate::InformationList info = props.additionalInfo();
1197     if (info != m_viewAccessor.itemDelegate()->showInformation()) {
1198         m_viewAccessor.itemDelegate()->setShowInformation(info);
1199         emit additionalInfoChanged();
1200     }
1201
1202     const bool showPreview = props.showPreview();
1203     if (showPreview != m_showPreview) {
1204         m_showPreview = showPreview;
1205         const int oldZoomLevel = m_viewModeController->zoomLevel();
1206         emit showPreviewChanged();
1207
1208         // Enabling or disabling the preview might change the icon size of the view.
1209         // As the view does not emit a signal when the icon size has been changed,
1210         // the used zoom level of the controller must be adjusted manually:
1211         updateZoomLevel(oldZoomLevel);
1212     }
1213 }
1214
1215 void DolphinView::createView()
1216 {
1217     deleteView();
1218
1219     Q_ASSERT(m_viewAccessor.itemView() == 0);
1220     Q_ASSERT(m_dolphinViewController->itemView() == 0);
1221     m_viewAccessor.createView(this, m_dolphinViewController, m_viewModeController, m_mode);
1222
1223     QAbstractItemView* view = m_viewAccessor.itemView();
1224     Q_ASSERT(view != 0);
1225     view->installEventFilter(this);
1226     view->viewport()->installEventFilter(this);
1227
1228     m_dolphinViewController->setItemView(view);
1229
1230     const int zoomLevel = ZoomLevelInfo::zoomLevelForIconSize(view->iconSize());
1231     m_viewModeController->setZoomLevel(zoomLevel);
1232
1233     connectViewAccessor();
1234
1235     setFocusProxy(m_viewAccessor.layoutTarget());
1236     m_topLayout->insertWidget(1, m_viewAccessor.layoutTarget());
1237 }
1238
1239 void DolphinView::deleteView()
1240 {
1241     QAbstractItemView* view = m_viewAccessor.itemView();
1242     Q_ASSERT((m_dolphinViewController->itemView() == 0) || (m_dolphinViewController->itemView() == view));
1243     m_dolphinViewController->setItemView(0);
1244
1245     if (view != 0) {
1246         disconnectViewAccessor();
1247
1248         if (hasFocus()) {
1249             // It's important to set the keyboard focus to the parent
1250             // before deleting the view: Otherwise when having a split
1251             // view the other view will get the focus and will request
1252             // an activation (see DolphinView::eventFilter()).
1253             setFocusProxy(0);
1254             setFocus();
1255         }
1256
1257         m_viewModeController->disconnect(view);
1258
1259         m_viewAccessor.deleteView();
1260     }
1261 }
1262
1263 void DolphinView::pasteToUrl(const KUrl& url)
1264 {
1265     addNewFileNames(QApplication::clipboard()->mimeData());
1266     KonqOperations::doPaste(this, url);
1267 }
1268
1269 void DolphinView::updateZoomLevel(int oldZoomLevel)
1270 {
1271     const int newZoomLevel = ZoomLevelInfo::zoomLevelForIconSize(m_viewAccessor.itemView()->iconSize());
1272     if (oldZoomLevel != newZoomLevel) {
1273         m_viewModeController->setZoomLevel(newZoomLevel);
1274         emit zoomLevelChanged(newZoomLevel);
1275     }
1276 }
1277
1278 KUrl::List DolphinView::simplifiedSelectedUrls() const
1279 {
1280     KUrl::List urls;
1281
1282     const KFileItemList items = selectedItems();
1283     foreach (const KFileItem &item, items) {
1284         urls.append(item.url());
1285     }
1286
1287
1288     if (itemsExpandable()) {
1289         urls = KDirModel::simplifiedUrlList(urls);
1290     }
1291
1292     return urls;
1293 }
1294
1295 QMimeData* DolphinView::selectionMimeData() const
1296 {
1297     const QAbstractItemView* view = m_viewAccessor.itemView();
1298     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
1299     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
1300     return m_viewAccessor.dirModel()->mimeData(selection.indexes());
1301 }
1302
1303 void DolphinView::addNewFileNames(const QMimeData* mimeData)
1304 {
1305     const KUrl::List urls = KUrl::List::fromMimeData(mimeData);
1306     foreach (const KUrl& url, urls) {
1307         m_newFileNames.insert(url.fileName());
1308     }
1309 }
1310
1311 QItemSelection DolphinView::childrenMatchingPattern(const QModelIndex& parent, const QRegExp& pattern) const
1312 {
1313     QItemSelection matchingIndexes;
1314     const DolphinSortFilterProxyModel* proxyModel = m_viewAccessor.proxyModel();
1315     const DolphinModel* dolphinModel = m_viewAccessor.dirModel();
1316
1317     const int rowCount = proxyModel->rowCount(parent);
1318
1319     for (int row = 0; row < rowCount; ++row) {
1320         QModelIndex index = proxyModel->index(row, 0, parent);
1321         QModelIndex sourceIndex = proxyModel->mapToSource(index);
1322
1323         if (sourceIndex.isValid() && pattern.exactMatch(dolphinModel->data(sourceIndex).toString())) {
1324             matchingIndexes += QItemSelectionRange(index);
1325         }
1326
1327         if (proxyModel->hasChildren(index)) {
1328             matchingIndexes += childrenMatchingPattern(index, pattern);
1329         }
1330     }
1331
1332     return matchingIndexes;
1333 }
1334
1335 void DolphinView::connectViewAccessor()
1336 {
1337     KDirLister* dirLister = m_viewAccessor.dirLister();
1338     connect(dirLister, SIGNAL(redirection(KUrl,KUrl)), this, SLOT(slotRedirection(KUrl,KUrl)));
1339     connect(dirLister, SIGNAL(started(KUrl)),          this, SLOT(slotDirListerStarted(KUrl)));
1340     connect(dirLister, SIGNAL(completed()),            this, SLOT(slotDirListerCompleted()));
1341     connect(dirLister, SIGNAL(canceled()),             this, SLOT(slotDirListerCompleted()));
1342     connect(dirLister, SIGNAL(refreshItems(const QList<QPair<KFileItem,KFileItem>>&)),
1343             this, SLOT(slotRefreshItems()));
1344
1345     connect(dirLister, SIGNAL(clear()),                      this, SIGNAL(itemCountChanged()));
1346     connect(dirLister, SIGNAL(newItems(KFileItemList)),      this, SIGNAL(itemCountChanged()));
1347     connect(dirLister, SIGNAL(infoMessage(const QString&)),  this, SIGNAL(infoMessage(const QString&)));
1348     connect(dirLister, SIGNAL(errorMessage(const QString&)), this, SIGNAL(infoMessage(const QString&)));
1349     connect(dirLister, SIGNAL(percent(int)),                 this, SIGNAL(pathLoadingProgress(int)));
1350     connect(dirLister, SIGNAL(urlIsFileError(const KUrl&)),  this, SIGNAL(urlIsFileError(const KUrl&)));
1351     connect(dirLister, SIGNAL(itemsDeleted(const KFileItemList&)), this, SIGNAL(itemCountChanged()));
1352
1353     QAbstractItemView* view = m_viewAccessor.itemView();
1354     connect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
1355             this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
1356 }
1357
1358 void DolphinView::disconnectViewAccessor()
1359 {
1360     KDirLister* dirLister = m_viewAccessor.dirLister();
1361     disconnect(dirLister, SIGNAL(redirection(KUrl,KUrl)), this, SLOT(slotRedirection(KUrl,KUrl)));
1362     disconnect(dirLister, SIGNAL(started(KUrl)),          this, SLOT(slotDirListerStarted(KUrl)));
1363     disconnect(dirLister, SIGNAL(completed()),            this, SLOT(slotDirListerCompleted()));
1364     disconnect(dirLister, SIGNAL(canceled()),             this, SLOT(slotDirListerCompleted()));
1365     disconnect(dirLister, SIGNAL(refreshItems(const QList<QPair<KFileItem,KFileItem>>&)),
1366                this, SLOT(slotRefreshItems()));
1367
1368     disconnect(dirLister, SIGNAL(clear()),                      this, SIGNAL(itemCountChanged()));
1369     disconnect(dirLister, SIGNAL(newItems(KFileItemList)),      this, SIGNAL(itemCountChanged()));
1370     disconnect(dirLister, SIGNAL(infoMessage(const QString&)),  this, SIGNAL(infoMessage(const QString&)));
1371     disconnect(dirLister, SIGNAL(errorMessage(const QString&)), this, SIGNAL(errorMessage(const QString&)));
1372     disconnect(dirLister, SIGNAL(percent(int)),                 this, SIGNAL(pathLoadingProgress(int)));
1373     disconnect(dirLister, SIGNAL(urlIsFileError(const KUrl&)),  this, SIGNAL(urlIsFileError(const KUrl&)));
1374     disconnect(dirLister, SIGNAL(itemsDeleted(const KFileItemList&)), this, SIGNAL(itemCountChanged()));
1375
1376     QAbstractItemView* view = m_viewAccessor.itemView();
1377     disconnect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
1378                this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
1379 }
1380
1381 void DolphinView::updateWritableState()
1382 {
1383     const bool wasFolderWritable = m_isFolderWritable;
1384     m_isFolderWritable = true;
1385
1386     const KFileItem item = m_viewAccessor.dirLister()->rootItem();
1387     if (!item.isNull()) {
1388         KFileItemListProperties capabilities(KFileItemList() << item);
1389         m_isFolderWritable = capabilities.supportsWriting();
1390     }
1391     if (m_isFolderWritable != wasFolderWritable) {
1392         emit writeStateChanged(m_isFolderWritable);
1393     }
1394 }
1395
1396 DolphinView::ViewAccessor::ViewAccessor() :
1397     m_rootUrl(),
1398     m_iconsView(0),
1399     m_detailsView(0),
1400     m_columnsContainer(0),
1401     m_dolphinModel(0),
1402     m_proxyModel(0),
1403     m_dragSource(0)
1404 {
1405     DolphinDirLister* dirLister = new DolphinDirLister();
1406     dirLister->setAutoUpdate(true);
1407     dirLister->setDelayedMimeTypes(true);
1408
1409     m_dolphinModel = new DolphinModel();
1410     m_dolphinModel->setDirLister(dirLister);  // m_dolphinModel takes ownership of dirLister
1411     m_dolphinModel->setDropsAllowed(DolphinModel::DropOnDirectory);
1412
1413     m_proxyModel = new DolphinSortFilterProxyModel();
1414     m_proxyModel->setSourceModel(m_dolphinModel);
1415     m_proxyModel->setFilterCaseSensitivity(Qt::CaseInsensitive);
1416 }
1417
1418 DolphinView::ViewAccessor::~ViewAccessor()
1419 {
1420     delete m_proxyModel;
1421     m_proxyModel = 0;
1422
1423     delete m_dolphinModel;
1424     m_dolphinModel = 0;
1425
1426     delete m_dragSource;
1427     m_dragSource = 0;
1428 }
1429
1430 void DolphinView::ViewAccessor::createView(QWidget* parent,
1431                                            DolphinViewController* dolphinViewController,
1432                                            const ViewModeController* viewModeController,
1433                                            Mode mode)
1434 {
1435     Q_ASSERT(itemView() == 0);
1436
1437     switch (mode) {
1438     case IconsView:
1439         m_iconsView = new DolphinIconsView(parent,
1440                                            dolphinViewController,
1441                                            viewModeController,
1442                                            m_proxyModel);
1443         break;
1444
1445     case DetailsView:
1446         m_detailsView = new DolphinDetailsView(parent,
1447                                                dolphinViewController,
1448                                                viewModeController,
1449                                                m_proxyModel);
1450         break;
1451
1452     case ColumnView:
1453         m_columnsContainer = new DolphinColumnViewContainer(parent,
1454                                                             dolphinViewController,
1455                                                             viewModeController);
1456         if (!m_rootUrl.isEmpty() && m_rootUrl.isParentOf(viewModeController->url())) {
1457             // The column-view must show several columns starting with m_rootUrl as
1458             // first column and viewModeController->url() as last column.
1459             m_columnsContainer->showColumn(m_rootUrl);
1460             m_columnsContainer->showColumn(viewModeController->url());
1461         }
1462         break;
1463
1464     default:
1465         Q_ASSERT(false);
1466     }
1467 }
1468
1469 void DolphinView::ViewAccessor::deleteView()
1470 {
1471     if (m_columnsContainer != 0) {
1472         m_columnsContainer->close();
1473         m_columnsContainer->disconnect();
1474         m_columnsContainer->deleteLater();
1475         m_columnsContainer = 0;
1476     } else {
1477         QAbstractItemView* view = itemView();
1478         if (view != 0) {
1479             view->close();
1480             view->disconnect();
1481
1482             if (DragAndDropHelper::instance().isDragSource(view)) {
1483                 // The view is a drag source (the feature "Open folders
1484                 // during drag operations" is used). Deleting the view
1485                 // during an ongoing drag operation is not allowed, so
1486                 // this will postponed.
1487                 if (m_dragSource != 0) {
1488                     // the old stored view is obviously not the drag source anymore
1489                     m_dragSource->deleteLater();
1490                     m_dragSource = 0;
1491                 }
1492                 view->hide();
1493                 m_dragSource = view;
1494             } else {
1495                 view->deleteLater();
1496                 view = 0;
1497             }
1498         }
1499
1500         m_iconsView = 0;
1501         m_detailsView = 0;
1502     }
1503 }
1504
1505 void DolphinView::ViewAccessor::prepareUrlChange(const KUrl& url)
1506 {
1507     if (m_columnsContainer != 0) {
1508         m_columnsContainer->showColumn(url);
1509     }
1510 }
1511
1512 QAbstractItemView* DolphinView::ViewAccessor::itemView() const
1513 {
1514     if (m_iconsView != 0) {
1515         return m_iconsView;
1516     }
1517
1518     if (m_detailsView != 0) {
1519         return m_detailsView;
1520     }
1521
1522     if (m_columnsContainer != 0) {
1523         return m_columnsContainer->activeColumn();
1524     }
1525
1526     return 0;
1527 }
1528
1529 KFileItemDelegate* DolphinView::ViewAccessor::itemDelegate() const
1530 {
1531     return static_cast<KFileItemDelegate*>(itemView()->itemDelegate());
1532 }
1533
1534 QWidget* DolphinView::ViewAccessor::layoutTarget() const
1535 {
1536     if (m_columnsContainer != 0) {
1537         return m_columnsContainer;
1538     }
1539     return itemView();
1540 }
1541
1542 void DolphinView::ViewAccessor::setRootUrl(const KUrl& rootUrl)
1543 {
1544     m_rootUrl = rootUrl;
1545 }
1546
1547 KUrl DolphinView::ViewAccessor::rootUrl() const
1548 {
1549     return (m_columnsContainer != 0) ? m_columnsContainer->rootUrl() : m_rootUrl;
1550 }
1551
1552 bool DolphinView::ViewAccessor::supportsCategorizedSorting() const
1553 {
1554     return m_iconsView != 0;
1555 }
1556
1557 bool DolphinView::ViewAccessor::itemsExpandable() const
1558 {
1559     return (m_detailsView != 0) && m_detailsView->itemsExpandable();
1560 }
1561
1562 QSet<KUrl> DolphinView::ViewAccessor::expandedUrls() const
1563 {
1564     if (m_detailsView != 0) {
1565         return m_detailsView->expandedUrls();
1566     }
1567
1568     return QSet<KUrl>();
1569 }
1570
1571 const DolphinDetailsViewExpander* DolphinView::ViewAccessor::setExpandedUrls(const QSet<KUrl>& urlsToExpand)
1572 {
1573     if ((m_detailsView != 0) && m_detailsView->itemsExpandable() && !urlsToExpand.isEmpty()) {
1574         // Check if another expander is already active and stop it if necessary.
1575         if(!m_detailsViewExpander.isNull()) {
1576             m_detailsViewExpander->stop();
1577         }
1578
1579         m_detailsViewExpander = new DolphinDetailsViewExpander(m_detailsView, urlsToExpand);
1580         return m_detailsViewExpander;
1581     }
1582     else {
1583         return 0;
1584     }
1585 }
1586
1587 bool DolphinView::ViewAccessor::reloadOnAdditionalInfoChange() const
1588 {
1589     // the details view requires no reloading of the directory, as it maps
1590     // the file item delegate info to its columns internally
1591     return m_detailsView != 0;
1592 }
1593
1594 DolphinModel* DolphinView::ViewAccessor::dirModel() const
1595 {
1596     return static_cast<DolphinModel*>(proxyModel()->sourceModel());
1597 }
1598
1599 DolphinSortFilterProxyModel* DolphinView::ViewAccessor::proxyModel() const
1600 {
1601     if (m_columnsContainer != 0) {
1602         return static_cast<DolphinSortFilterProxyModel*>(m_columnsContainer->activeColumn()->model());
1603     }
1604     return m_proxyModel;
1605 }
1606
1607 KDirLister* DolphinView::ViewAccessor::dirLister() const
1608 {
1609     return dirModel()->dirLister();
1610 }
1611
1612 #include "dolphinview.moc"