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 <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>
  33 #include <KColorScheme>
  34 #include <KDirLister>
  35 #include <KIconEffect>
  36 #include <KFileItem>
  37 #include <KFileItemListProperties>
  38 #include <KLocale>
  39 #include <KIO/DeleteJob>
  40 #include <KIO/NetAccess>
  41 #include <KIO/PreviewJob>
  42 #include <KJob>
  43 #include <KMenu>
  44 #include <KMessageBox>
  45 #include <konq_fileitemcapabilities.h>
  46 #include <konq_operations.h>
  47 #include <konqmimedata.h>
  48 #include <KToggleAction>
  49 #include <KUrl>
  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) {
 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) {
 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     // Implementation note: Using selectionModel->select(selection, QItemSelectionModel::Toggle) does not
 570     // work, as QItemSelectionModel::hasSelection() provides invalid values in this case. This might be a Qt-issue -
 571     // when changing the implementation with an updated Qt-version don't forget to run the Dolphin-unit-tests that
 572     // verify this usecase.
 573     const KFileItemList selItems = selectedItems();
 574     clearSelection();
 575
 576     QItemSelection invertedSelection;
 577     foreach (const KFileItem& item, items()) {
 578         if (!selItems.contains(item)) {
 579             const QModelIndex index = m_viewAccessor.proxyModel()->mapFromSource(m_viewAccessor.dirModel()->indexForItem(item));
 580             invertedSelection.select(index, index);
 581         }
 582     }
 583
 584     QItemSelectionModel* selectionModel = m_viewAccessor.itemView()->selectionModel();
 585     selectionModel->select(invertedSelection, QItemSelectionModel::ClearAndSelect | QItemSelectionModel::Current);
 586 }
 587
 588 void DolphinView::clearSelection()
 589 {
 590     m_viewAccessor.itemView()->clearSelection();
 591 }
 592
 593 void DolphinView::renameSelectedItems()
 594 {
 595     KFileItemList items = selectedItems();
 596     const int itemCount = items.count();
 597     if (itemCount < 1) {
 598         return;
 599     }
 600
 601     if ((itemCount == 1) && DolphinSettings::instance().generalSettings()->renameInline()) {
 602         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForItem(items.first());
 603         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
 604         m_viewAccessor.itemView()->edit(proxyIndex);
 605     } else {
 606         RenameDialog* dialog = new RenameDialog(this, items);
 607         dialog->setAttribute(Qt::WA_DeleteOnClose);
 608         dialog->show();
 609         dialog->raise();
 610         dialog->activateWindow();
 611     }
 612 }
 613
 614 void DolphinView::trashSelectedItems()
 615 {
 616     const KUrl::List list = simplifiedSelectedUrls();
 617     KonqOperations::del(this, KonqOperations::TRASH, list);
 618 }
 619
 620 void DolphinView::deleteSelectedItems()
 621 {
 622     const KUrl::List list = simplifiedSelectedUrls();
 623     const bool del = KonqOperations::askDeleteConfirmation(list,
 624                      KonqOperations::DEL,
 625                      KonqOperations::DEFAULT_CONFIRMATION,
 626                      this);
 627
 628     if (del) {
 629         KIO::Job* job = KIO::del(list);
 630         connect(job, SIGNAL(result(KJob*)),
 631                 this, SLOT(slotDeleteFileFinished(KJob*)));
 632     }
 633 }
 634
 635 void DolphinView::cutSelectedItems()
 636 {
 637     QMimeData* mimeData = selectionMimeData();
 638     KonqMimeData::addIsCutSelection(mimeData, true);
 639     QApplication::clipboard()->setMimeData(mimeData);
 640 }
 641
 642 void DolphinView::copySelectedItems()
 643 {
 644     QMimeData* mimeData = selectionMimeData();
 645     QApplication::clipboard()->setMimeData(mimeData);
 646 }
 647
 648 void DolphinView::paste()
 649 {
 650     pasteToUrl(url());
 651 }
 652
 653 void DolphinView::pasteIntoFolder()
 654 {
 655     const KFileItemList items = selectedItems();
 656     if ((items.count() == 1) && items.first().isDir()) {
 657         pasteToUrl(items.first().url());
 658     }
 659 }
 660
 661 void DolphinView::setShowPreview(bool show)
 662 {
 663     if (m_showPreview == show) {
 664         return;
 665     }
 666
 667     const KUrl viewPropsUrl = rootUrl();
 668     ViewProperties props(viewPropsUrl);
 669     props.setShowPreview(show);
 670
 671     m_showPreview = show;
 672     const int oldZoomLevel = m_viewModeController->zoomLevel();
 673     emit showPreviewChanged();
 674
 675     // Enabling or disabling the preview might change the icon size of the view.
 676     // As the view does not emit a signal when the icon size has been changed,
 677     // the used zoom level of the controller must be adjusted manually:
 678     updateZoomLevel(oldZoomLevel);
 679 }
 680
 681 void DolphinView::setShowHiddenFiles(bool show)
 682 {
 683     if (m_viewAccessor.dirLister()->showingDotFiles() == show) {
 684         return;
 685     }
 686
 687     const KUrl viewPropsUrl = rootUrl();
 688     ViewProperties props(viewPropsUrl);
 689     props.setShowHiddenFiles(show);
 690
 691     m_viewAccessor.dirLister()->setShowingDotFiles(show);
 692     emit showHiddenFilesChanged();
 693 }
 694
 695 void DolphinView::setCategorizedSorting(bool categorized)
 696 {
 697     if (categorized == categorizedSorting()) {
 698         return;
 699     }
 700
 701     // setCategorizedSorting(true) may only get invoked
 702     // if the view supports categorized sorting
 703     Q_ASSERT(!categorized || supportsCategorizedSorting());
 704
 705     ViewProperties props(rootUrl());
 706     props.setCategorizedSorting(categorized);
 707     props.save();
 708
 709     m_storedCategorizedSorting = categorized;
 710     m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 711
 712     emit categorizedSortingChanged();
 713 }
 714
 715 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 716 {
 717     QWidget::mouseReleaseEvent(event);
 718     setActive(true);
 719 }
 720
 721 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 722 {
 723     switch (event->type()) {
 724     case QEvent::FocusIn:
 725         if (watched == m_viewAccessor.itemView()) {
 726             m_dolphinViewController->requestActivation();
 727         }
 728         break;
 729
 730     case QEvent::DragEnter:
 731         if (watched == m_viewAccessor.itemView()->viewport()) {
 732             setActive(true);
 733         }
 734         break;
 735
 736     case QEvent::KeyPress:
 737         if (watched == m_viewAccessor.itemView()) {
 738             // clear the selection when Escape has been pressed
 739             QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
 740             if (keyEvent->key() == Qt::Key_Escape) {
 741                 clearSelection();
 742             }
 743         }
 744         break;
 745
 746     case QEvent::Wheel:
 747         if (watched == m_viewAccessor.itemView()->viewport()) {
 748             // Ctrl+wheel events should cause icon zooming, but not if the left mouse button is pressed
 749             // (the user is probably trying to scroll during a selection in that case)
 750             QWheelEvent* wheelEvent = static_cast<QWheelEvent*>(event);
 751             if (wheelEvent->modifiers() & Qt::ControlModifier && !(wheelEvent->buttons() & Qt::LeftButton)) {
 752                 const int delta = wheelEvent->delta();
 753                 const int level = zoomLevel();
 754                 if (delta > 0) {
 755                     setZoomLevel(level + 1);
 756                 } else if (delta < 0) {
 757                     setZoomLevel(level - 1);
 758                 }
 759                 return true;
 760             }
 761         }
 762         break;
 763
 764     default:
 765         break;
 766     }
 767
 768     return QWidget::eventFilter(watched, event);
 769 }
 770
 771 void DolphinView::showEvent(QShowEvent* event)
 772 {
 773     QWidget::showEvent(event);
 774     if (!event->spontaneous()) {
 775         loadDirectory(url());
 776     }
 777 }
 778
 779 void DolphinView::activate()
 780 {
 781     setActive(true);
 782 }
 783
 784 void DolphinView::triggerItem(const KFileItem& item)
 785 {
 786     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 787     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 788         // items are selected by the user, hence don't trigger the
 789         // item specified by 'index'
 790         return;
 791     }
 792
 793     // TODO: the m_isContextMenuOpen check is a workaround for Qt-issue 207192
 794     if (item.isNull() || m_isContextMenuOpen) {
 795         return;
 796     }
 797
 798     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 799 }
 800
 801 void DolphinView::slotSelectionChanged(const QItemSelection& selected, const QItemSelection& deselected)
 802 {
 803     const int count = selectedItemsCount();
 804     const bool selectionStateChanged = ((count >  0) && (selected.count() == count)) ||
 805                                        ((count == 0) && !deselected.isEmpty());
 806
 807     // If nothing has been selected before and something got selected (or if something
 808     // was selected before and now nothing is selected) the selectionChangedSignal must
 809     // be emitted asynchronously as fast as possible to update the edit-actions.
 810     m_selectionChangedTimer->setInterval(selectionStateChanged ? 0 : 300);
 811     m_selectionChangedTimer->start();
 812 }
 813
 814 void DolphinView::emitSelectionChangedSignal()
 815 {
 816     m_selectionChangedTimer->stop();
 817     emit selectionChanged(selectedItems());
 818 }
 819
 820 void DolphinView::openContextMenu(const QPoint& pos,
 821                                   const QList<QAction*>& customActions)
 822 {
 823     KFileItem item;
 824     const QModelIndex index = m_viewAccessor.itemView()->indexAt(pos);
 825     if (index.isValid() && (index.column() == DolphinModel::Name)) {
 826         const QModelIndex dolphinModelIndex = m_viewAccessor.proxyModel()->mapToSource(index);
 827         item = m_viewAccessor.dirModel()->itemForIndex(dolphinModelIndex);
 828     }
 829
 830     m_isContextMenuOpen = true; // TODO: workaround for Qt-issue 207192
 831     emit requestContextMenu(item, url(), customActions);
 832     m_isContextMenuOpen = false;
 833 }
 834
 835 void DolphinView::dropUrls(const KFileItem& destItem,
 836                            const KUrl& destPath,
 837                            QDropEvent* event)
 838 {
 839     addNewFileNames(event->mimeData());
 840     DragAndDropHelper::instance().dropUrls(destItem, destPath, event, this);
 841 }
 842
 843 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 844 {
 845     ViewProperties props(rootUrl());
 846     props.setSorting(sorting);
 847
 848     m_viewAccessor.proxyModel()->setSorting(sorting);
 849
 850     emit sortingChanged(sorting);
 851 }
 852
 853 void DolphinView::updateSortOrder(Qt::SortOrder order)
 854 {
 855     ViewProperties props(rootUrl());
 856     props.setSortOrder(order);
 857
 858     m_viewAccessor.proxyModel()->setSortOrder(order);
 859
 860     emit sortOrderChanged(order);
 861 }
 862
 863 void DolphinView::updateSortFoldersFirst(bool foldersFirst)
 864 {
 865     ViewProperties props(rootUrl());
 866     props.setSortFoldersFirst(foldersFirst);
 867
 868     m_viewAccessor.proxyModel()->setSortFoldersFirst(foldersFirst);
 869
 870     emit sortFoldersFirstChanged(foldersFirst);
 871 }
 872
 873 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 874 {
 875     ViewProperties props(rootUrl());
 876     props.setAdditionalInfo(info);
 877     props.save();
 878
 879     m_viewAccessor.itemDelegate()->setShowInformation(info);
 880
 881     emit additionalInfoChanged();
 882 }
 883
 884 void DolphinView::updateAdditionalInfoActions(KActionCollection* collection)
 885 {
 886     const AdditionalInfoAccessor& infoAccessor = AdditionalInfoAccessor::instance();
 887
 888     const KFileItemDelegate::InformationList checkedInfo = m_viewAccessor.itemDelegate()->showInformation();
 889     const KFileItemDelegate::InformationList infoKeys = infoAccessor.keys();
 890
 891     const bool enable = (m_mode == DolphinView::DetailsView) ||
 892                         (m_mode == DolphinView::IconsView);
 893
 894     foreach (const KFileItemDelegate::Information& info, infoKeys) {
 895         const QString name = infoAccessor.actionCollectionName(info, AdditionalInfoAccessor::AdditionalInfoType);
 896         QAction* action = collection->action(name);
 897         Q_ASSERT(action);
 898         action->setEnabled(enable);
 899         action->setChecked(checkedInfo.contains(info));
 900     }
 901 }
 902
 903 QPair<bool, QString> DolphinView::pasteInfo() const
 904 {
 905     return KonqOperations::pasteInfo(url());
 906 }
 907
 908 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
 909 {
 910     m_tabsForFiles = tabsForFiles;
 911 }
 912
 913 bool DolphinView::isTabsForFilesEnabled() const
 914 {
 915     return m_tabsForFiles;
 916 }
 917
 918 bool DolphinView::itemsExpandable() const
 919 {
 920     return m_viewAccessor.itemsExpandable();
 921 }
 922
 923 void DolphinView::restoreState(QDataStream& stream)
 924 {
 925     // Restore the URL of the current item that had the keyboard focus
 926     stream >> m_activeItemUrl;
 927
 928     // Restore the root URL
 929     KUrl rootUrl;
 930     stream >> rootUrl;
 931     m_viewAccessor.setRootUrl(rootUrl);
 932
 933     // Restore the view position
 934     stream >> m_restoredContentsPosition;
 935
 936     // Restore expanded folders (only relevant for the details view - will be ignored by the view in other view modes)
 937     QSet<KUrl> urlsToExpand;
 938     stream >> urlsToExpand;
 939     const DolphinDetailsViewExpander* expander = m_viewAccessor.setExpandedUrls(urlsToExpand);
 940     if (expander) {
 941         m_expanderActive = true;
 942         connect (expander, SIGNAL(completed()), this, SLOT(slotLoadingCompleted()));
 943     }
 944     else {
 945         m_expanderActive = false;
 946     }
 947 }
 948
 949 void DolphinView::saveState(QDataStream& stream)
 950 {
 951     // Save the URL of the current item that has the keyboard focus
 952     KFileItem currentItem;
 953     const QAbstractItemView* view = m_viewAccessor.itemView();
 954
 955     if (view) {
 956         const QModelIndex proxyIndex = view->currentIndex();
 957         const QModelIndex dirModelIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
 958         currentItem = m_viewAccessor.dirModel()->itemForIndex(dirModelIndex);
 959     }
 960
 961     KUrl currentItemUrl;
 962     if (!currentItem.isNull()) {
 963         currentItemUrl = currentItem.url();
 964     }
 965
 966     stream << currentItemUrl;
 967
 968     // Save the root URL
 969     stream << m_viewAccessor.rootUrl();
 970
 971     // Save view position
 972     const int x = view->horizontalScrollBar()->value();
 973     const int y = view->verticalScrollBar()->value();
 974     stream << QPoint(x, y);
 975
 976     // Save expanded folders (only relevant for the details view - the set will be empty in other view modes)
 977     stream << m_viewAccessor.expandedUrls();
 978 }
 979
 980 bool DolphinView::hasSelection() const
 981 {
 982     const QAbstractItemView* view = m_viewAccessor.itemView();
 983     return view && view->selectionModel()->hasSelection();
 984 }
 985
 986 void DolphinView::observeCreatedItem(const KUrl& url)
 987 {
 988     m_createdItemUrl = url;
 989     connect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
 990             this, SLOT(selectAndScrollToCreatedItem()));
 991 }
 992
 993 void DolphinView::selectAndScrollToCreatedItem()
 994 {
 995     const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_createdItemUrl);
 996     if (dirIndex.isValid()) {
 997         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
 998         m_viewAccessor.itemView()->setCurrentIndex(proxyIndex);
 999     }
1000
1001     disconnect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
1002                this, SLOT(selectAndScrollToCreatedItem()));
1003     m_createdItemUrl = KUrl();
1004 }
1005
1006 void DolphinView::slotRedirection(const KUrl& oldUrl, const KUrl& newUrl)
1007 {
1008     if (oldUrl.equals(url(), KUrl::CompareWithoutTrailingSlash)) {
1009         emit redirection(oldUrl, newUrl);
1010         m_viewModeController->redirectToUrl(newUrl); // #186947
1011     }
1012 }
1013
1014 void DolphinView::restoreContentsPosition()
1015 {
1016     if (!m_restoredContentsPosition.isNull()) {
1017         const int x = m_restoredContentsPosition.x();
1018         const int y = m_restoredContentsPosition.y();
1019         m_restoredContentsPosition = QPoint();
1020
1021         QAbstractItemView* view = m_viewAccessor.itemView();
1022         Q_ASSERT(view);
1023         view->horizontalScrollBar()->setValue(x);
1024         view->verticalScrollBar()->setValue(y);
1025     }
1026 }
1027
1028 void DolphinView::slotUrlChangeRequested(const KUrl& url)
1029 {
1030     m_viewModeController->setUrl(url);
1031     updateWritableState();
1032 }
1033
1034 void DolphinView::showHoverInformation(const KFileItem& item)
1035 {
1036     emit requestItemInfo(item);
1037 }
1038
1039 void DolphinView::clearHoverInformation()
1040 {
1041     emit requestItemInfo(KFileItem());
1042 }
1043
1044 void DolphinView::slotDeleteFileFinished(KJob* job)
1045 {
1046     if (job->error() == 0) {
1047         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1048     } else if (job->error() != KIO::ERR_USER_CANCELED) {
1049         emit errorMessage(job->errorString());
1050     }
1051 }
1052
1053 void DolphinView::slotDirListerStarted(const KUrl& url)
1054 {
1055     // Disable the writestate temporary until it can be determined in a fast way
1056     // in DolphinView::slotDirListerCompleted()
1057     if (m_isFolderWritable) {
1058         m_isFolderWritable = false;
1059         emit writeStateChanged(m_isFolderWritable);
1060     }
1061
1062     emit startedPathLoading(url);
1063 }
1064
1065 void DolphinView::slotDirListerCompleted()
1066 {
1067     if (!m_expanderActive) {
1068         slotLoadingCompleted();
1069     }
1070
1071     if (!m_newFileNames.isEmpty()) {
1072         // select all newly added items created by a paste operation or
1073         // a drag & drop operation, and clear the previous selection
1074         m_viewAccessor.itemView()->clearSelection();
1075         const int rowCount = m_viewAccessor.proxyModel()->rowCount();
1076         QItemSelection selection;
1077         for (int row = 0; row < rowCount; ++row) {
1078             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->index(row, 0);
1079             const QModelIndex dirIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
1080             const KUrl url = m_viewAccessor.dirModel()->itemForIndex(dirIndex).url();
1081             if (m_newFileNames.contains(url.fileName())) {
1082                 selection.merge(QItemSelection(proxyIndex, proxyIndex), QItemSelectionModel::Select);
1083             }
1084         }
1085         m_viewAccessor.itemView()->selectionModel()->select(selection, QItemSelectionModel::Select);
1086
1087         m_newFileNames.clear();
1088     }
1089
1090     updateWritableState();
1091 }
1092
1093 void DolphinView::slotLoadingCompleted()
1094 {
1095     m_expanderActive = false;
1096
1097     if (!m_activeItemUrl.isEmpty()) {
1098         // assure that the current item remains visible
1099         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_activeItemUrl);
1100         if (dirIndex.isValid()) {
1101             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1102             QAbstractItemView* view = m_viewAccessor.itemView();
1103             const bool clearSelection = !hasSelection();
1104             view->setCurrentIndex(proxyIndex);
1105             if (clearSelection) {
1106                 view->clearSelection();
1107             }
1108             m_activeItemUrl.clear();
1109         }
1110     }
1111
1112     if (!m_selectedItems.isEmpty()) {
1113         const KUrl& baseUrl = url();
1114         KUrl url;
1115         QItemSelection newSelection;
1116         foreach(const KFileItem& item, m_selectedItems) {
1117             url = item.url().upUrl();
1118             if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
1119                 const QModelIndex index = m_viewAccessor.proxyModel()->mapFromSource(m_viewAccessor.dirModel()->indexForItem(item));
1120                 newSelection.select(index, index);
1121             }
1122         }
1123         m_viewAccessor.itemView()->selectionModel()->select(newSelection,
1124                                                             QItemSelectionModel::ClearAndSelect
1125                                                             | QItemSelectionModel::Current);
1126         m_selectedItems.clear();
1127     }
1128
1129     // Restore the contents position. This has to be done using a Qt::QueuedConnection
1130     // because the view might not be in its final state yet.
1131     QMetaObject::invokeMethod(this, "restoreContentsPosition", Qt::QueuedConnection);
1132
1133     emit finishedPathLoading(url());
1134 }
1135
1136 void DolphinView::slotRefreshItems()
1137 {
1138     if (m_assureVisibleCurrentIndex) {
1139         m_assureVisibleCurrentIndex = false;
1140         m_viewAccessor.itemView()->scrollTo(m_viewAccessor.itemView()->currentIndex());
1141     }
1142 }
1143
1144 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1145 {
1146     if (!url.isValid()) {
1147         const QString location(url.pathOrUrl());
1148         if (location.isEmpty()) {
1149             emit errorMessage(i18nc("@info:status", "The location is empty."));
1150         } else {
1151             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1152         }
1153         return;
1154     }
1155
1156     KDirLister* dirLister = m_viewAccessor.dirLister();
1157     dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
1158 }
1159
1160 void DolphinView::applyViewProperties()
1161 {
1162     const ViewProperties props(rootUrl());
1163
1164     const Mode mode = props.viewMode();
1165     if (m_mode != mode) {
1166         const int oldZoomLevel = m_viewModeController->zoomLevel();
1167
1168         m_mode = mode;
1169         createView();
1170         emit modeChanged();
1171
1172         updateZoomLevel(oldZoomLevel);
1173     }
1174     if (!m_viewAccessor.itemView()) {
1175         createView();
1176     }
1177
1178     Q_ASSERT(m_viewAccessor.itemView());
1179     Q_ASSERT(m_viewAccessor.itemDelegate());
1180
1181     const bool showHiddenFiles = props.showHiddenFiles();
1182     if (showHiddenFiles != m_viewAccessor.dirLister()->showingDotFiles()) {
1183         m_viewAccessor.dirLister()->setShowingDotFiles(showHiddenFiles);
1184         emit showHiddenFilesChanged();
1185     }
1186
1187     m_storedCategorizedSorting = props.categorizedSorting();
1188     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1189     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
1190         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
1191         emit categorizedSortingChanged();
1192     }
1193
1194     const DolphinView::Sorting sorting = props.sorting();
1195     if (sorting != m_viewAccessor.proxyModel()->sorting()) {
1196         m_viewAccessor.proxyModel()->setSorting(sorting);
1197         emit sortingChanged(sorting);
1198     }
1199
1200     const Qt::SortOrder sortOrder = props.sortOrder();
1201     if (sortOrder != m_viewAccessor.proxyModel()->sortOrder()) {
1202         m_viewAccessor.proxyModel()->setSortOrder(sortOrder);
1203         emit sortOrderChanged(sortOrder);
1204     }
1205
1206     const bool sortFoldersFirst = props.sortFoldersFirst();
1207     if (sortFoldersFirst != m_viewAccessor.proxyModel()->sortFoldersFirst()) {
1208         m_viewAccessor.proxyModel()->setSortFoldersFirst(sortFoldersFirst);
1209         emit sortFoldersFirstChanged(sortFoldersFirst);
1210     }
1211
1212     KFileItemDelegate::InformationList info = props.additionalInfo();
1213     if (info != m_viewAccessor.itemDelegate()->showInformation()) {
1214         m_viewAccessor.itemDelegate()->setShowInformation(info);
1215         emit additionalInfoChanged();
1216     }
1217
1218     const bool showPreview = props.showPreview();
1219     if (showPreview != m_showPreview) {
1220         m_showPreview = showPreview;
1221         const int oldZoomLevel = m_viewModeController->zoomLevel();
1222         emit showPreviewChanged();
1223
1224         // Enabling or disabling the preview might change the icon size of the view.
1225         // As the view does not emit a signal when the icon size has been changed,
1226         // the used zoom level of the controller must be adjusted manually:
1227         updateZoomLevel(oldZoomLevel);
1228     }
1229 }
1230
1231 void DolphinView::createView()
1232 {
1233     deleteView();
1234
1235     Q_ASSERT(!m_viewAccessor.itemView());
1236     Q_ASSERT(!m_dolphinViewController->itemView());
1237     m_viewAccessor.createView(this, m_dolphinViewController, m_viewModeController, m_mode);
1238
1239     QAbstractItemView* view = m_viewAccessor.itemView();
1240     Q_ASSERT(view);
1241     view->installEventFilter(this);
1242     view->viewport()->installEventFilter(this);
1243
1244     m_dolphinViewController->setItemView(view);
1245
1246     const int zoomLevel = ZoomLevelInfo::zoomLevelForIconSize(view->iconSize());
1247     m_viewModeController->setZoomLevel(zoomLevel);
1248
1249     connectViewAccessor();
1250
1251     setFocusProxy(m_viewAccessor.layoutTarget());
1252     m_topLayout->insertWidget(1, m_viewAccessor.layoutTarget());
1253 }
1254
1255 void DolphinView::deleteView()
1256 {
1257     QAbstractItemView* view = m_viewAccessor.itemView();
1258     Q_ASSERT(!m_dolphinViewController->itemView() || (m_dolphinViewController->itemView() == view));
1259     m_dolphinViewController->setItemView(0);
1260
1261     if (view) {
1262         disconnectViewAccessor();
1263
1264         if (hasFocus()) {
1265             // It's important to set the keyboard focus to the parent
1266             // before deleting the view: Otherwise when having a split
1267             // view the other view will get the focus and will request
1268             // an activation (see DolphinView::eventFilter()).
1269             setFocusProxy(0);
1270             setFocus();
1271         }
1272
1273         m_viewModeController->disconnect(view);
1274
1275         m_viewAccessor.deleteView();
1276     }
1277 }
1278
1279 void DolphinView::pasteToUrl(const KUrl& url)
1280 {
1281     addNewFileNames(QApplication::clipboard()->mimeData());
1282     KonqOperations::doPaste(this, url);
1283 }
1284
1285 void DolphinView::updateZoomLevel(int oldZoomLevel)
1286 {
1287     const int newZoomLevel = ZoomLevelInfo::zoomLevelForIconSize(m_viewAccessor.itemView()->iconSize());
1288     if (oldZoomLevel != newZoomLevel) {
1289         m_viewModeController->setZoomLevel(newZoomLevel);
1290         emit zoomLevelChanged(newZoomLevel);
1291     }
1292 }
1293
1294 KUrl::List DolphinView::simplifiedSelectedUrls() const
1295 {
1296     KUrl::List urls;
1297
1298     const KFileItemList items = selectedItems();
1299     foreach (const KFileItem &item, items) {
1300         urls.append(item.url());
1301     }
1302
1303
1304     if (itemsExpandable()) {
1305         urls = KDirModel::simplifiedUrlList(urls);
1306     }
1307
1308     return urls;
1309 }
1310
1311 QMimeData* DolphinView::selectionMimeData() const
1312 {
1313     const QAbstractItemView* view = m_viewAccessor.itemView();
1314     Q_ASSERT((view) && (view->selectionModel()));
1315     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
1316     return m_viewAccessor.dirModel()->mimeData(selection.indexes());
1317 }
1318
1319 void DolphinView::addNewFileNames(const QMimeData* mimeData)
1320 {
1321     const KUrl::List urls = KUrl::List::fromMimeData(mimeData);
1322     foreach (const KUrl& url, urls) {
1323         m_newFileNames.insert(url.fileName());
1324     }
1325 }
1326
1327 QItemSelection DolphinView::childrenMatchingPattern(const QModelIndex& parent, const QRegExp& pattern) const
1328 {
1329     QItemSelection matchingIndexes;
1330     const DolphinSortFilterProxyModel* proxyModel = m_viewAccessor.proxyModel();
1331     const DolphinModel* dolphinModel = m_viewAccessor.dirModel();
1332
1333     const int rowCount = proxyModel->rowCount(parent);
1334
1335     for (int row = 0; row < rowCount; ++row) {
1336         QModelIndex index = proxyModel->index(row, 0, parent);
1337         QModelIndex sourceIndex = proxyModel->mapToSource(index);
1338
1339         if (sourceIndex.isValid() && pattern.exactMatch(dolphinModel->data(sourceIndex).toString())) {
1340             matchingIndexes += QItemSelectionRange(index);
1341         }
1342
1343         if (proxyModel->hasChildren(index)) {
1344             matchingIndexes += childrenMatchingPattern(index, pattern);
1345         }
1346     }
1347
1348     return matchingIndexes;
1349 }
1350
1351 void DolphinView::connectViewAccessor()
1352 {
1353     KDirLister* dirLister = m_viewAccessor.dirLister();
1354     connect(dirLister, SIGNAL(redirection(KUrl,KUrl)), this, SLOT(slotRedirection(KUrl,KUrl)));
1355     connect(dirLister, SIGNAL(started(KUrl)),          this, SLOT(slotDirListerStarted(KUrl)));
1356     connect(dirLister, SIGNAL(completed()),            this, SLOT(slotDirListerCompleted()));
1357     connect(dirLister, SIGNAL(refreshItems(const QList<QPair<KFileItem,KFileItem>>&)),
1358             this, SLOT(slotRefreshItems()));
1359
1360     connect(dirLister, SIGNAL(clear()),                      this, SIGNAL(itemCountChanged()));
1361     connect(dirLister, SIGNAL(newItems(KFileItemList)),      this, SIGNAL(itemCountChanged()));
1362     connect(dirLister, SIGNAL(infoMessage(const QString&)),  this, SIGNAL(infoMessage(const QString&)));
1363     connect(dirLister, SIGNAL(errorMessage(const QString&)), this, SIGNAL(infoMessage(const QString&)));
1364     connect(dirLister, SIGNAL(percent(int)),                 this, SIGNAL(pathLoadingProgress(int)));
1365     connect(dirLister, SIGNAL(urlIsFileError(const KUrl&)),  this, SIGNAL(urlIsFileError(const KUrl&)));
1366     connect(dirLister, SIGNAL(itemsDeleted(const KFileItemList&)), this, SIGNAL(itemCountChanged()));
1367
1368     QAbstractItemView* view = m_viewAccessor.itemView();
1369     connect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
1370             this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
1371 }
1372
1373 void DolphinView::disconnectViewAccessor()
1374 {
1375     KDirLister* dirLister = m_viewAccessor.dirLister();
1376     disconnect(dirLister, SIGNAL(redirection(KUrl,KUrl)), this, SLOT(slotRedirection(KUrl,KUrl)));
1377     disconnect(dirLister, SIGNAL(started(KUrl)),          this, SLOT(slotDirListerStarted(KUrl)));
1378     disconnect(dirLister, SIGNAL(completed()),            this, SLOT(slotDirListerCompleted()));
1379     disconnect(dirLister, SIGNAL(refreshItems(const QList<QPair<KFileItem,KFileItem>>&)),
1380                this, SLOT(slotRefreshItems()));
1381
1382     disconnect(dirLister, SIGNAL(clear()),                      this, SIGNAL(itemCountChanged()));
1383     disconnect(dirLister, SIGNAL(newItems(KFileItemList)),      this, SIGNAL(itemCountChanged()));
1384     disconnect(dirLister, SIGNAL(infoMessage(const QString&)),  this, SIGNAL(infoMessage(const QString&)));
1385     disconnect(dirLister, SIGNAL(errorMessage(const QString&)), this, SIGNAL(errorMessage(const QString&)));
1386     disconnect(dirLister, SIGNAL(percent(int)),                 this, SIGNAL(pathLoadingProgress(int)));
1387     disconnect(dirLister, SIGNAL(urlIsFileError(const KUrl&)),  this, SIGNAL(urlIsFileError(const KUrl&)));
1388     disconnect(dirLister, SIGNAL(itemsDeleted(const KFileItemList&)), this, SIGNAL(itemCountChanged()));
1389
1390     QAbstractItemView* view = m_viewAccessor.itemView();
1391     disconnect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
1392                this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
1393 }
1394
1395 void DolphinView::updateWritableState()
1396 {
1397     const bool wasFolderWritable = m_isFolderWritable;
1398     m_isFolderWritable = true;
1399
1400     const KFileItem item = m_viewAccessor.dirLister()->rootItem();
1401     if (!item.isNull()) {
1402         KFileItemListProperties capabilities(KFileItemList() << item);
1403         m_isFolderWritable = capabilities.supportsWriting();
1404     }
1405     if (m_isFolderWritable != wasFolderWritable) {
1406         emit writeStateChanged(m_isFolderWritable);
1407     }
1408 }
1409
1410 DolphinView::ViewAccessor::ViewAccessor() :
1411     m_rootUrl(),
1412     m_iconsView(0),
1413     m_detailsView(0),
1414     m_columnsContainer(0),
1415     m_dolphinModel(0),
1416     m_proxyModel(0),
1417     m_dragSource(0)
1418 {
1419     DolphinDirLister* dirLister = new DolphinDirLister();
1420     dirLister->setAutoUpdate(true);
1421     dirLister->setDelayedMimeTypes(true);
1422
1423     m_dolphinModel = new DolphinModel();
1424     m_dolphinModel->setDirLister(dirLister);  // m_dolphinModel takes ownership of dirLister
1425     m_dolphinModel->setDropsAllowed(DolphinModel::DropOnDirectory);
1426
1427     m_proxyModel = new DolphinSortFilterProxyModel();
1428     m_proxyModel->setSourceModel(m_dolphinModel);
1429     m_proxyModel->setFilterCaseSensitivity(Qt::CaseInsensitive);
1430 }
1431
1432 DolphinView::ViewAccessor::~ViewAccessor()
1433 {
1434     delete m_proxyModel;
1435     m_proxyModel = 0;
1436
1437     delete m_dolphinModel;
1438     m_dolphinModel = 0;
1439
1440     delete m_dragSource;
1441     m_dragSource = 0;
1442 }
1443
1444 void DolphinView::ViewAccessor::createView(QWidget* parent,
1445                                            DolphinViewController* dolphinViewController,
1446                                            const ViewModeController* viewModeController,
1447                                            Mode mode)
1448 {
1449     Q_ASSERT(!itemView());
1450
1451     switch (mode) {
1452     case IconsView:
1453         m_iconsView = new DolphinIconsView(parent,
1454                                            dolphinViewController,
1455                                            viewModeController,
1456                                            m_proxyModel);
1457         break;
1458
1459     case DetailsView:
1460         m_detailsView = new DolphinDetailsView(parent,
1461                                                dolphinViewController,
1462                                                viewModeController,
1463                                                m_proxyModel);
1464         break;
1465
1466     case ColumnView:
1467         m_columnsContainer = new DolphinColumnViewContainer(parent,
1468                                                             dolphinViewController,
1469                                                             viewModeController);
1470         if (!m_rootUrl.isEmpty() && m_rootUrl.isParentOf(viewModeController->url())) {
1471             // The column-view must show several columns starting with m_rootUrl as
1472             // first column and viewModeController->url() as last column.
1473             m_columnsContainer->showColumn(m_rootUrl);
1474             m_columnsContainer->showColumn(viewModeController->url());
1475         }
1476         break;
1477
1478     default:
1479         Q_ASSERT(false);
1480     }
1481 }
1482
1483 void DolphinView::ViewAccessor::deleteView()
1484 {
1485     if (m_columnsContainer) {
1486         m_columnsContainer->close();
1487         m_columnsContainer->disconnect();
1488         m_columnsContainer->deleteLater();
1489         m_columnsContainer = 0;
1490     } else {
1491         QAbstractItemView* view = itemView();
1492         if (view) {
1493             view->close();
1494             view->disconnect();
1495
1496             if (DragAndDropHelper::instance().isDragSource(view)) {
1497                 // The view is a drag source (the feature "Open folders
1498                 // during drag operations" is used). Deleting the view
1499                 // during an ongoing drag operation is not allowed, so
1500                 // this will postponed.
1501                 if (m_dragSource) {
1502                     // the old stored view is obviously not the drag source anymore
1503                     m_dragSource->deleteLater();
1504                     m_dragSource = 0;
1505                 }
1506                 view->hide();
1507                 m_dragSource = view;
1508             } else {
1509                 view->deleteLater();
1510                 view = 0;
1511             }
1512         }
1513
1514         m_iconsView = 0;
1515         m_detailsView = 0;
1516     }
1517 }
1518
1519 void DolphinView::ViewAccessor::prepareUrlChange(const KUrl& url)
1520 {
1521     if (m_columnsContainer) {
1522         m_columnsContainer->showColumn(url);
1523     }
1524 }
1525
1526 QAbstractItemView* DolphinView::ViewAccessor::itemView() const
1527 {
1528     if (m_iconsView) {
1529         return m_iconsView;
1530     }
1531
1532     if (m_detailsView) {
1533         return m_detailsView;
1534     }
1535
1536     if (m_columnsContainer) {
1537         return m_columnsContainer->activeColumn();
1538     }
1539
1540     return 0;
1541 }
1542
1543 KFileItemDelegate* DolphinView::ViewAccessor::itemDelegate() const
1544 {
1545     return static_cast<KFileItemDelegate*>(itemView()->itemDelegate());
1546 }
1547
1548 QWidget* DolphinView::ViewAccessor::layoutTarget() const
1549 {
1550     if (m_columnsContainer) {
1551         return m_columnsContainer;
1552     }
1553     return itemView();
1554 }
1555
1556 void DolphinView::ViewAccessor::setRootUrl(const KUrl& rootUrl)
1557 {
1558     m_rootUrl = rootUrl;
1559 }
1560
1561 KUrl DolphinView::ViewAccessor::rootUrl() const
1562 {
1563     return m_columnsContainer ? m_columnsContainer->rootUrl() : m_rootUrl;
1564 }
1565
1566 bool DolphinView::ViewAccessor::supportsCategorizedSorting() const
1567 {
1568     return m_iconsView != 0;
1569 }
1570
1571 bool DolphinView::ViewAccessor::itemsExpandable() const
1572 {
1573     return m_detailsView && m_detailsView->itemsExpandable();
1574 }
1575
1576 QSet<KUrl> DolphinView::ViewAccessor::expandedUrls() const
1577 {
1578     if (m_detailsView) {
1579         return m_detailsView->expandedUrls();
1580     }
1581
1582     return QSet<KUrl>();
1583 }
1584
1585 const DolphinDetailsViewExpander* DolphinView::ViewAccessor::setExpandedUrls(const QSet<KUrl>& urlsToExpand)
1586 {
1587     if (m_detailsView && m_detailsView->itemsExpandable() && !urlsToExpand.isEmpty()) {
1588         // Check if another expander is already active and stop it if necessary.
1589         if(!m_detailsViewExpander.isNull()) {
1590             m_detailsViewExpander->stop();
1591         }
1592
1593         m_detailsViewExpander = new DolphinDetailsViewExpander(m_detailsView, urlsToExpand);
1594         return m_detailsViewExpander;
1595     }
1596     else {
1597         return 0;
1598     }
1599 }
1600
1601 bool DolphinView::ViewAccessor::reloadOnAdditionalInfoChange() const
1602 {
1603     // the details view requires no reloading of the directory, as it maps
1604     // the file item delegate info to its columns internally
1605     return m_detailsView != 0;
1606 }
1607
1608 DolphinModel* DolphinView::ViewAccessor::dirModel() const
1609 {
1610     return static_cast<DolphinModel*>(proxyModel()->sourceModel());
1611 }
1612
1613 DolphinSortFilterProxyModel* DolphinView::ViewAccessor::proxyModel() const
1614 {
1615     if (m_columnsContainer) {
1616         return static_cast<DolphinSortFilterProxyModel*>(m_columnsContainer->activeColumn()->model());
1617     }
1618     return m_proxyModel;
1619 }
1620
1621 KDirLister* DolphinView::ViewAccessor::dirLister() const
1622 {
1623     return dirModel()->dirLister();
1624 }
1625
1626 #include "dolphinview.moc"