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     // assure that the current index remains visible when KDirLister
 614     // will notify the view about changed items
 615     m_assureVisibleCurrentIndex = true;
 616 }
 617
 618 void DolphinView::trashSelectedItems()
 619 {
 620     const KUrl::List list = simplifiedSelectedUrls();
 621     KonqOperations::del(this, KonqOperations::TRASH, list);
 622 }
 623
 624 void DolphinView::deleteSelectedItems()
 625 {
 626     const KUrl::List list = simplifiedSelectedUrls();
 627     const bool del = KonqOperations::askDeleteConfirmation(list,
 628                      KonqOperations::DEL,
 629                      KonqOperations::DEFAULT_CONFIRMATION,
 630                      this);
 631
 632     if (del) {
 633         KIO::Job* job = KIO::del(list);
 634         connect(job, SIGNAL(result(KJob*)),
 635                 this, SLOT(slotDeleteFileFinished(KJob*)));
 636     }
 637 }
 638
 639 void DolphinView::cutSelectedItems()
 640 {
 641     QMimeData* mimeData = selectionMimeData();
 642     KonqMimeData::addIsCutSelection(mimeData, true);
 643     QApplication::clipboard()->setMimeData(mimeData);
 644 }
 645
 646 void DolphinView::copySelectedItems()
 647 {
 648     QMimeData* mimeData = selectionMimeData();
 649     QApplication::clipboard()->setMimeData(mimeData);
 650 }
 651
 652 void DolphinView::paste()
 653 {
 654     pasteToUrl(url());
 655 }
 656
 657 void DolphinView::pasteIntoFolder()
 658 {
 659     const KFileItemList items = selectedItems();
 660     if ((items.count() == 1) && items.first().isDir()) {
 661         pasteToUrl(items.first().url());
 662     }
 663 }
 664
 665 void DolphinView::setShowPreview(bool show)
 666 {
 667     if (m_showPreview == show) {
 668         return;
 669     }
 670
 671     const KUrl viewPropsUrl = rootUrl();
 672     ViewProperties props(viewPropsUrl);
 673     props.setShowPreview(show);
 674
 675     m_showPreview = show;
 676     const int oldZoomLevel = m_viewModeController->zoomLevel();
 677     emit showPreviewChanged();
 678
 679     // Enabling or disabling the preview might change the icon size of the view.
 680     // As the view does not emit a signal when the icon size has been changed,
 681     // the used zoom level of the controller must be adjusted manually:
 682     updateZoomLevel(oldZoomLevel);
 683 }
 684
 685 void DolphinView::setShowHiddenFiles(bool show)
 686 {
 687     if (m_viewAccessor.dirLister()->showingDotFiles() == show) {
 688         return;
 689     }
 690
 691     const KUrl viewPropsUrl = rootUrl();
 692     ViewProperties props(viewPropsUrl);
 693     props.setShowHiddenFiles(show);
 694
 695     m_viewAccessor.dirLister()->setShowingDotFiles(show);
 696     emit showHiddenFilesChanged();
 697 }
 698
 699 void DolphinView::setCategorizedSorting(bool categorized)
 700 {
 701     if (categorized == categorizedSorting()) {
 702         return;
 703     }
 704
 705     // setCategorizedSorting(true) may only get invoked
 706     // if the view supports categorized sorting
 707     Q_ASSERT(!categorized || supportsCategorizedSorting());
 708
 709     ViewProperties props(rootUrl());
 710     props.setCategorizedSorting(categorized);
 711     props.save();
 712
 713     m_storedCategorizedSorting = categorized;
 714     m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 715
 716     emit categorizedSortingChanged();
 717 }
 718
 719 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 720 {
 721     QWidget::mouseReleaseEvent(event);
 722     setActive(true);
 723 }
 724
 725 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 726 {
 727     switch (event->type()) {
 728     case QEvent::FocusIn:
 729         if (watched == m_viewAccessor.itemView()) {
 730             m_dolphinViewController->requestActivation();
 731         }
 732         break;
 733
 734     case QEvent::DragEnter:
 735         if (watched == m_viewAccessor.itemView()->viewport()) {
 736             setActive(true);
 737         }
 738         break;
 739
 740     case QEvent::KeyPress:
 741         if (watched == m_viewAccessor.itemView()) {
 742             // clear the selection when Escape has been pressed
 743             QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
 744             if (keyEvent->key() == Qt::Key_Escape) {
 745                 clearSelection();
 746             }
 747         }
 748         break;
 749
 750     case QEvent::Wheel:
 751         if (watched == m_viewAccessor.itemView()->viewport()) {
 752             // Ctrl+wheel events should cause icon zooming, but not if the left mouse button is pressed
 753             // (the user is probably trying to scroll during a selection in that case)
 754             QWheelEvent* wheelEvent = static_cast<QWheelEvent*>(event);
 755             if (wheelEvent->modifiers() & Qt::ControlModifier && !(wheelEvent->buttons() & Qt::LeftButton)) {
 756                 const int delta = wheelEvent->delta();
 757                 const int level = zoomLevel();
 758                 if (delta > 0) {
 759                     setZoomLevel(level + 1);
 760                 } else if (delta < 0) {
 761                     setZoomLevel(level - 1);
 762                 }
 763                 return true;
 764             }
 765         }
 766         break;
 767
 768     default:
 769         break;
 770     }
 771
 772     return QWidget::eventFilter(watched, event);
 773 }
 774
 775 void DolphinView::showEvent(QShowEvent* event)
 776 {
 777     QWidget::showEvent(event);
 778     if (!event->spontaneous()) {
 779         loadDirectory(url());
 780     }
 781 }
 782
 783 void DolphinView::activate()
 784 {
 785     setActive(true);
 786 }
 787
 788 void DolphinView::triggerItem(const KFileItem& item)
 789 {
 790     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 791     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 792         // items are selected by the user, hence don't trigger the
 793         // item specified by 'index'
 794         return;
 795     }
 796
 797     // TODO: the m_isContextMenuOpen check is a workaround for Qt-issue 207192
 798     if (item.isNull() || m_isContextMenuOpen) {
 799         return;
 800     }
 801
 802     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 803 }
 804
 805 void DolphinView::slotSelectionChanged(const QItemSelection& selected, const QItemSelection& deselected)
 806 {
 807     const int count = selectedItemsCount();
 808     const bool selectionStateChanged = ((count >  0) && (selected.count() == count)) ||
 809                                        ((count == 0) && !deselected.isEmpty());
 810
 811     // If nothing has been selected before and something got selected (or if something
 812     // was selected before and now nothing is selected) the selectionChangedSignal must
 813     // be emitted asynchronously as fast as possible to update the edit-actions.
 814     m_selectionChangedTimer->setInterval(selectionStateChanged ? 0 : 300);
 815     m_selectionChangedTimer->start();
 816 }
 817
 818 void DolphinView::emitSelectionChangedSignal()
 819 {
 820     m_selectionChangedTimer->stop();
 821     emit selectionChanged(selectedItems());
 822 }
 823
 824 void DolphinView::openContextMenu(const QPoint& pos,
 825                                   const QList<QAction*>& customActions)
 826 {
 827     KFileItem item;
 828     const QModelIndex index = m_viewAccessor.itemView()->indexAt(pos);
 829     if (index.isValid() && (index.column() == DolphinModel::Name)) {
 830         const QModelIndex dolphinModelIndex = m_viewAccessor.proxyModel()->mapToSource(index);
 831         item = m_viewAccessor.dirModel()->itemForIndex(dolphinModelIndex);
 832     }
 833
 834     m_isContextMenuOpen = true; // TODO: workaround for Qt-issue 207192
 835     emit requestContextMenu(item, url(), customActions);
 836     m_isContextMenuOpen = false;
 837 }
 838
 839 void DolphinView::dropUrls(const KFileItem& destItem,
 840                            const KUrl& destPath,
 841                            QDropEvent* event)
 842 {
 843     addNewFileNames(event->mimeData());
 844     DragAndDropHelper::instance().dropUrls(destItem, destPath, event, this);
 845 }
 846
 847 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 848 {
 849     ViewProperties props(rootUrl());
 850     props.setSorting(sorting);
 851
 852     m_viewAccessor.proxyModel()->setSorting(sorting);
 853
 854     emit sortingChanged(sorting);
 855 }
 856
 857 void DolphinView::updateSortOrder(Qt::SortOrder order)
 858 {
 859     ViewProperties props(rootUrl());
 860     props.setSortOrder(order);
 861
 862     m_viewAccessor.proxyModel()->setSortOrder(order);
 863
 864     emit sortOrderChanged(order);
 865 }
 866
 867 void DolphinView::updateSortFoldersFirst(bool foldersFirst)
 868 {
 869     ViewProperties props(rootUrl());
 870     props.setSortFoldersFirst(foldersFirst);
 871
 872     m_viewAccessor.proxyModel()->setSortFoldersFirst(foldersFirst);
 873
 874     emit sortFoldersFirstChanged(foldersFirst);
 875 }
 876
 877 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 878 {
 879     ViewProperties props(rootUrl());
 880     props.setAdditionalInfo(info);
 881     props.save();
 882
 883     m_viewAccessor.itemDelegate()->setShowInformation(info);
 884
 885     emit additionalInfoChanged();
 886 }
 887
 888 void DolphinView::updateAdditionalInfoActions(KActionCollection* collection)
 889 {
 890     const AdditionalInfoAccessor& infoAccessor = AdditionalInfoAccessor::instance();
 891
 892     const KFileItemDelegate::InformationList checkedInfo = m_viewAccessor.itemDelegate()->showInformation();
 893     const KFileItemDelegate::InformationList infoKeys = infoAccessor.keys();
 894
 895     const bool enable = (m_mode == DolphinView::DetailsView) ||
 896                         (m_mode == DolphinView::IconsView);
 897
 898     foreach (const KFileItemDelegate::Information& info, infoKeys) {
 899         const QString name = infoAccessor.actionCollectionName(info, AdditionalInfoAccessor::AdditionalInfoType);
 900         QAction* action = collection->action(name);
 901         Q_ASSERT(action);
 902         action->setEnabled(enable);
 903         action->setChecked(checkedInfo.contains(info));
 904     }
 905 }
 906
 907 QPair<bool, QString> DolphinView::pasteInfo() const
 908 {
 909     return KonqOperations::pasteInfo(url());
 910 }
 911
 912 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
 913 {
 914     m_tabsForFiles = tabsForFiles;
 915 }
 916
 917 bool DolphinView::isTabsForFilesEnabled() const
 918 {
 919     return m_tabsForFiles;
 920 }
 921
 922 bool DolphinView::itemsExpandable() const
 923 {
 924     return m_viewAccessor.itemsExpandable();
 925 }
 926
 927 void DolphinView::restoreState(QDataStream& stream)
 928 {
 929     // Restore the URL of the current item that had the keyboard focus
 930     stream >> m_activeItemUrl;
 931
 932     // Restore the root URL
 933     KUrl rootUrl;
 934     stream >> rootUrl;
 935     m_viewAccessor.setRootUrl(rootUrl);
 936
 937     // Restore the view position
 938     stream >> m_restoredContentsPosition;
 939
 940     // Restore expanded folders (only relevant for the details view - will be ignored by the view in other view modes)
 941     QSet<KUrl> urlsToExpand;
 942     stream >> urlsToExpand;
 943     const DolphinDetailsViewExpander* expander = m_viewAccessor.setExpandedUrls(urlsToExpand);
 944     if (expander) {
 945         m_expanderActive = true;
 946         connect (expander, SIGNAL(completed()), this, SLOT(slotLoadingCompleted()));
 947     }
 948     else {
 949         m_expanderActive = false;
 950     }
 951 }
 952
 953 void DolphinView::saveState(QDataStream& stream)
 954 {
 955     // Save the URL of the current item that has the keyboard focus
 956     KFileItem currentItem;
 957     const QAbstractItemView* view = m_viewAccessor.itemView();
 958
 959     if (view) {
 960         const QModelIndex proxyIndex = view->currentIndex();
 961         const QModelIndex dirModelIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
 962         currentItem = m_viewAccessor.dirModel()->itemForIndex(dirModelIndex);
 963     }
 964
 965     KUrl currentItemUrl;
 966     if (!currentItem.isNull()) {
 967         currentItemUrl = currentItem.url();
 968     }
 969
 970     stream << currentItemUrl;
 971
 972     // Save the root URL
 973     stream << m_viewAccessor.rootUrl();
 974
 975     // Save view position
 976     const int x = view->horizontalScrollBar()->value();
 977     const int y = view->verticalScrollBar()->value();
 978     stream << QPoint(x, y);
 979
 980     // Save expanded folders (only relevant for the details view - the set will be empty in other view modes)
 981     stream << m_viewAccessor.expandedUrls();
 982 }
 983
 984 bool DolphinView::hasSelection() const
 985 {
 986     const QAbstractItemView* view = m_viewAccessor.itemView();
 987     return view && view->selectionModel()->hasSelection();
 988 }
 989
 990 void DolphinView::observeCreatedItem(const KUrl& url)
 991 {
 992     m_createdItemUrl = url;
 993     connect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
 994             this, SLOT(selectAndScrollToCreatedItem()));
 995 }
 996
 997 void DolphinView::selectAndScrollToCreatedItem()
 998 {
 999     const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_createdItemUrl);
1000     if (dirIndex.isValid()) {
1001         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1002         m_viewAccessor.itemView()->setCurrentIndex(proxyIndex);
1003     }
1004
1005     disconnect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
1006                this, SLOT(selectAndScrollToCreatedItem()));
1007     m_createdItemUrl = KUrl();
1008 }
1009
1010 void DolphinView::slotRedirection(const KUrl& oldUrl, const KUrl& newUrl)
1011 {
1012     if (oldUrl.equals(url(), KUrl::CompareWithoutTrailingSlash)) {
1013         emit redirection(oldUrl, newUrl);
1014         m_viewModeController->redirectToUrl(newUrl); // #186947
1015     }
1016 }
1017
1018 void DolphinView::restoreContentsPosition()
1019 {
1020     if (!m_restoredContentsPosition.isNull()) {
1021         const int x = m_restoredContentsPosition.x();
1022         const int y = m_restoredContentsPosition.y();
1023         m_restoredContentsPosition = QPoint();
1024
1025         QAbstractItemView* view = m_viewAccessor.itemView();
1026         Q_ASSERT(view);
1027         view->horizontalScrollBar()->setValue(x);
1028         view->verticalScrollBar()->setValue(y);
1029     }
1030 }
1031
1032 void DolphinView::slotUrlChangeRequested(const KUrl& url)
1033 {
1034     m_viewModeController->setUrl(url);
1035     updateWritableState();
1036 }
1037
1038 void DolphinView::showHoverInformation(const KFileItem& item)
1039 {
1040     emit requestItemInfo(item);
1041 }
1042
1043 void DolphinView::clearHoverInformation()
1044 {
1045     emit requestItemInfo(KFileItem());
1046 }
1047
1048 void DolphinView::slotDeleteFileFinished(KJob* job)
1049 {
1050     if (job->error() == 0) {
1051         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1052     } else if (job->error() != KIO::ERR_USER_CANCELED) {
1053         emit errorMessage(job->errorString());
1054     }
1055 }
1056
1057 void DolphinView::slotDirListerStarted(const KUrl& url)
1058 {
1059     // Disable the writestate temporary until it can be determined in a fast way
1060     // in DolphinView::slotDirListerCompleted()
1061     if (m_isFolderWritable) {
1062         m_isFolderWritable = false;
1063         emit writeStateChanged(m_isFolderWritable);
1064     }
1065
1066     emit startedPathLoading(url);
1067 }
1068
1069 void DolphinView::slotDirListerCompleted()
1070 {
1071     if (!m_expanderActive) {
1072         slotLoadingCompleted();
1073     }
1074
1075     if (!m_newFileNames.isEmpty()) {
1076         // select all newly added items created by a paste operation or
1077         // a drag & drop operation, and clear the previous selection
1078         m_viewAccessor.itemView()->clearSelection();
1079         const int rowCount = m_viewAccessor.proxyModel()->rowCount();
1080         QItemSelection selection;
1081         for (int row = 0; row < rowCount; ++row) {
1082             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->index(row, 0);
1083             const QModelIndex dirIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
1084             const KUrl url = m_viewAccessor.dirModel()->itemForIndex(dirIndex).url();
1085             if (m_newFileNames.contains(url.fileName())) {
1086                 selection.merge(QItemSelection(proxyIndex, proxyIndex), QItemSelectionModel::Select);
1087             }
1088         }
1089         m_viewAccessor.itemView()->selectionModel()->select(selection, QItemSelectionModel::Select);
1090
1091         m_newFileNames.clear();
1092     }
1093
1094     updateWritableState();
1095 }
1096
1097 void DolphinView::slotLoadingCompleted()
1098 {
1099     m_expanderActive = false;
1100
1101     if (!m_activeItemUrl.isEmpty()) {
1102         // assure that the current item remains visible
1103         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_activeItemUrl);
1104         if (dirIndex.isValid()) {
1105             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1106             QAbstractItemView* view = m_viewAccessor.itemView();
1107             const bool clearSelection = !hasSelection();
1108             view->setCurrentIndex(proxyIndex);
1109             if (clearSelection) {
1110                 view->clearSelection();
1111             }
1112             m_activeItemUrl.clear();
1113         }
1114     }
1115
1116     if (!m_selectedItems.isEmpty()) {
1117         const KUrl& baseUrl = url();
1118         KUrl url;
1119         QItemSelection newSelection;
1120         foreach(const KFileItem& item, m_selectedItems) {
1121             url = item.url().upUrl();
1122             if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
1123                 const QModelIndex index = m_viewAccessor.proxyModel()->mapFromSource(m_viewAccessor.dirModel()->indexForItem(item));
1124                 newSelection.select(index, index);
1125             }
1126         }
1127         m_viewAccessor.itemView()->selectionModel()->select(newSelection,
1128                                                             QItemSelectionModel::ClearAndSelect
1129                                                             | QItemSelectionModel::Current);
1130         m_selectedItems.clear();
1131     }
1132
1133     // Restore the contents position. This has to be done using a Qt::QueuedConnection
1134     // because the view might not be in its final state yet.
1135     QMetaObject::invokeMethod(this, "restoreContentsPosition", Qt::QueuedConnection);
1136
1137     emit finishedPathLoading(url());
1138 }
1139
1140 void DolphinView::slotRefreshItems()
1141 {
1142     if (m_assureVisibleCurrentIndex) {
1143         m_assureVisibleCurrentIndex = false;
1144         m_viewAccessor.itemView()->scrollTo(m_viewAccessor.itemView()->currentIndex());
1145     }
1146 }
1147
1148 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1149 {
1150     if (!url.isValid()) {
1151         const QString location(url.pathOrUrl());
1152         if (location.isEmpty()) {
1153             emit errorMessage(i18nc("@info:status", "The location is empty."));
1154         } else {
1155             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1156         }
1157         return;
1158     }
1159
1160     KDirLister* dirLister = m_viewAccessor.dirLister();
1161     dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
1162 }
1163
1164 void DolphinView::applyViewProperties()
1165 {
1166     const ViewProperties props(rootUrl());
1167
1168     const Mode mode = props.viewMode();
1169     if (m_mode != mode) {
1170         const int oldZoomLevel = m_viewModeController->zoomLevel();
1171
1172         m_mode = mode;
1173         createView();
1174         emit modeChanged();
1175
1176         updateZoomLevel(oldZoomLevel);
1177     }
1178     if (!m_viewAccessor.itemView()) {
1179         createView();
1180     }
1181
1182     Q_ASSERT(m_viewAccessor.itemView());
1183     Q_ASSERT(m_viewAccessor.itemDelegate());
1184
1185     const bool showHiddenFiles = props.showHiddenFiles();
1186     if (showHiddenFiles != m_viewAccessor.dirLister()->showingDotFiles()) {
1187         m_viewAccessor.dirLister()->setShowingDotFiles(showHiddenFiles);
1188         emit showHiddenFilesChanged();
1189     }
1190
1191     m_storedCategorizedSorting = props.categorizedSorting();
1192     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1193     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
1194         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
1195         emit categorizedSortingChanged();
1196     }
1197
1198     const DolphinView::Sorting sorting = props.sorting();
1199     if (sorting != m_viewAccessor.proxyModel()->sorting()) {
1200         m_viewAccessor.proxyModel()->setSorting(sorting);
1201         emit sortingChanged(sorting);
1202     }
1203
1204     const Qt::SortOrder sortOrder = props.sortOrder();
1205     if (sortOrder != m_viewAccessor.proxyModel()->sortOrder()) {
1206         m_viewAccessor.proxyModel()->setSortOrder(sortOrder);
1207         emit sortOrderChanged(sortOrder);
1208     }
1209
1210     const bool sortFoldersFirst = props.sortFoldersFirst();
1211     if (sortFoldersFirst != m_viewAccessor.proxyModel()->sortFoldersFirst()) {
1212         m_viewAccessor.proxyModel()->setSortFoldersFirst(sortFoldersFirst);
1213         emit sortFoldersFirstChanged(sortFoldersFirst);
1214     }
1215
1216     KFileItemDelegate::InformationList info = props.additionalInfo();
1217     if (info != m_viewAccessor.itemDelegate()->showInformation()) {
1218         m_viewAccessor.itemDelegate()->setShowInformation(info);
1219         emit additionalInfoChanged();
1220     }
1221
1222     const bool showPreview = props.showPreview();
1223     if (showPreview != m_showPreview) {
1224         m_showPreview = showPreview;
1225         const int oldZoomLevel = m_viewModeController->zoomLevel();
1226         emit showPreviewChanged();
1227
1228         // Enabling or disabling the preview might change the icon size of the view.
1229         // As the view does not emit a signal when the icon size has been changed,
1230         // the used zoom level of the controller must be adjusted manually:
1231         updateZoomLevel(oldZoomLevel);
1232     }
1233 }
1234
1235 void DolphinView::createView()
1236 {
1237     deleteView();
1238
1239     Q_ASSERT(!m_viewAccessor.itemView());
1240     Q_ASSERT(!m_dolphinViewController->itemView());
1241     m_viewAccessor.createView(this, m_dolphinViewController, m_viewModeController, m_mode);
1242
1243     QAbstractItemView* view = m_viewAccessor.itemView();
1244     Q_ASSERT(view);
1245     view->installEventFilter(this);
1246     view->viewport()->installEventFilter(this);
1247
1248     m_dolphinViewController->setItemView(view);
1249
1250     const int zoomLevel = ZoomLevelInfo::zoomLevelForIconSize(view->iconSize());
1251     m_viewModeController->setZoomLevel(zoomLevel);
1252
1253     connectViewAccessor();
1254
1255     setFocusProxy(m_viewAccessor.layoutTarget());
1256     m_topLayout->insertWidget(1, m_viewAccessor.layoutTarget());
1257 }
1258
1259 void DolphinView::deleteView()
1260 {
1261     QAbstractItemView* view = m_viewAccessor.itemView();
1262     Q_ASSERT(!m_dolphinViewController->itemView() || (m_dolphinViewController->itemView() == view));
1263     m_dolphinViewController->setItemView(0);
1264
1265     if (view) {
1266         disconnectViewAccessor();
1267
1268         if (hasFocus()) {
1269             // It's important to set the keyboard focus to the parent
1270             // before deleting the view: Otherwise when having a split
1271             // view the other view will get the focus and will request
1272             // an activation (see DolphinView::eventFilter()).
1273             setFocusProxy(0);
1274             setFocus();
1275         }
1276
1277         m_viewModeController->disconnect(view);
1278
1279         m_viewAccessor.deleteView();
1280     }
1281 }
1282
1283 void DolphinView::pasteToUrl(const KUrl& url)
1284 {
1285     addNewFileNames(QApplication::clipboard()->mimeData());
1286     KonqOperations::doPaste(this, url);
1287 }
1288
1289 void DolphinView::updateZoomLevel(int oldZoomLevel)
1290 {
1291     const int newZoomLevel = ZoomLevelInfo::zoomLevelForIconSize(m_viewAccessor.itemView()->iconSize());
1292     if (oldZoomLevel != newZoomLevel) {
1293         m_viewModeController->setZoomLevel(newZoomLevel);
1294         emit zoomLevelChanged(newZoomLevel);
1295     }
1296 }
1297
1298 KUrl::List DolphinView::simplifiedSelectedUrls() const
1299 {
1300     KUrl::List urls;
1301
1302     const KFileItemList items = selectedItems();
1303     foreach (const KFileItem &item, items) {
1304         urls.append(item.url());
1305     }
1306
1307
1308     if (itemsExpandable()) {
1309         urls = KDirModel::simplifiedUrlList(urls);
1310     }
1311
1312     return urls;
1313 }
1314
1315 QMimeData* DolphinView::selectionMimeData() const
1316 {
1317     const QAbstractItemView* view = m_viewAccessor.itemView();
1318     Q_ASSERT((view) && (view->selectionModel()));
1319     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
1320     return m_viewAccessor.dirModel()->mimeData(selection.indexes());
1321 }
1322
1323 void DolphinView::addNewFileNames(const QMimeData* mimeData)
1324 {
1325     const KUrl::List urls = KUrl::List::fromMimeData(mimeData);
1326     foreach (const KUrl& url, urls) {
1327         m_newFileNames.insert(url.fileName());
1328     }
1329 }
1330
1331 QItemSelection DolphinView::childrenMatchingPattern(const QModelIndex& parent, const QRegExp& pattern) const
1332 {
1333     QItemSelection matchingIndexes;
1334     const DolphinSortFilterProxyModel* proxyModel = m_viewAccessor.proxyModel();
1335     const DolphinModel* dolphinModel = m_viewAccessor.dirModel();
1336
1337     const int rowCount = proxyModel->rowCount(parent);
1338
1339     for (int row = 0; row < rowCount; ++row) {
1340         QModelIndex index = proxyModel->index(row, 0, parent);
1341         QModelIndex sourceIndex = proxyModel->mapToSource(index);
1342
1343         if (sourceIndex.isValid() && pattern.exactMatch(dolphinModel->data(sourceIndex).toString())) {
1344             matchingIndexes += QItemSelectionRange(index);
1345         }
1346
1347         if (proxyModel->hasChildren(index)) {
1348             matchingIndexes += childrenMatchingPattern(index, pattern);
1349         }
1350     }
1351
1352     return matchingIndexes;
1353 }
1354
1355 void DolphinView::connectViewAccessor()
1356 {
1357     KDirLister* dirLister = m_viewAccessor.dirLister();
1358     connect(dirLister, SIGNAL(redirection(KUrl,KUrl)), this, SLOT(slotRedirection(KUrl,KUrl)));
1359     connect(dirLister, SIGNAL(started(KUrl)),          this, SLOT(slotDirListerStarted(KUrl)));
1360     connect(dirLister, SIGNAL(completed()),            this, SLOT(slotDirListerCompleted()));
1361     connect(dirLister, SIGNAL(refreshItems(const QList<QPair<KFileItem,KFileItem>>&)),
1362             this, SLOT(slotRefreshItems()));
1363
1364     connect(dirLister, SIGNAL(clear()),                      this, SIGNAL(itemCountChanged()));
1365     connect(dirLister, SIGNAL(newItems(KFileItemList)),      this, SIGNAL(itemCountChanged()));
1366     connect(dirLister, SIGNAL(infoMessage(const QString&)),  this, SIGNAL(infoMessage(const QString&)));
1367     connect(dirLister, SIGNAL(errorMessage(const QString&)), this, SIGNAL(infoMessage(const QString&)));
1368     connect(dirLister, SIGNAL(percent(int)),                 this, SIGNAL(pathLoadingProgress(int)));
1369     connect(dirLister, SIGNAL(urlIsFileError(const KUrl&)),  this, SIGNAL(urlIsFileError(const KUrl&)));
1370     connect(dirLister, SIGNAL(itemsDeleted(const KFileItemList&)), this, SIGNAL(itemCountChanged()));
1371
1372     QAbstractItemView* view = m_viewAccessor.itemView();
1373     connect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
1374             this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
1375 }
1376
1377 void DolphinView::disconnectViewAccessor()
1378 {
1379     KDirLister* dirLister = m_viewAccessor.dirLister();
1380     disconnect(dirLister, SIGNAL(redirection(KUrl,KUrl)), this, SLOT(slotRedirection(KUrl,KUrl)));
1381     disconnect(dirLister, SIGNAL(started(KUrl)),          this, SLOT(slotDirListerStarted(KUrl)));
1382     disconnect(dirLister, SIGNAL(completed()),            this, SLOT(slotDirListerCompleted()));
1383     disconnect(dirLister, SIGNAL(refreshItems(const QList<QPair<KFileItem,KFileItem>>&)),
1384                this, SLOT(slotRefreshItems()));
1385
1386     disconnect(dirLister, SIGNAL(clear()),                      this, SIGNAL(itemCountChanged()));
1387     disconnect(dirLister, SIGNAL(newItems(KFileItemList)),      this, SIGNAL(itemCountChanged()));
1388     disconnect(dirLister, SIGNAL(infoMessage(const QString&)),  this, SIGNAL(infoMessage(const QString&)));
1389     disconnect(dirLister, SIGNAL(errorMessage(const QString&)), this, SIGNAL(errorMessage(const QString&)));
1390     disconnect(dirLister, SIGNAL(percent(int)),                 this, SIGNAL(pathLoadingProgress(int)));
1391     disconnect(dirLister, SIGNAL(urlIsFileError(const KUrl&)),  this, SIGNAL(urlIsFileError(const KUrl&)));
1392     disconnect(dirLister, SIGNAL(itemsDeleted(const KFileItemList&)), this, SIGNAL(itemCountChanged()));
1393
1394     QAbstractItemView* view = m_viewAccessor.itemView();
1395     disconnect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
1396                this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
1397 }
1398
1399 void DolphinView::updateWritableState()
1400 {
1401     const bool wasFolderWritable = m_isFolderWritable;
1402     m_isFolderWritable = true;
1403
1404     const KFileItem item = m_viewAccessor.dirLister()->rootItem();
1405     if (!item.isNull()) {
1406         KFileItemListProperties capabilities(KFileItemList() << item);
1407         m_isFolderWritable = capabilities.supportsWriting();
1408     }
1409     if (m_isFolderWritable != wasFolderWritable) {
1410         emit writeStateChanged(m_isFolderWritable);
1411     }
1412 }
1413
1414 DolphinView::ViewAccessor::ViewAccessor() :
1415     m_rootUrl(),
1416     m_iconsView(0),
1417     m_detailsView(0),
1418     m_columnsContainer(0),
1419     m_dolphinModel(0),
1420     m_proxyModel(0),
1421     m_dragSource(0)
1422 {
1423     DolphinDirLister* dirLister = new DolphinDirLister();
1424     dirLister->setAutoUpdate(true);
1425     dirLister->setDelayedMimeTypes(true);
1426
1427     m_dolphinModel = new DolphinModel();
1428     m_dolphinModel->setDirLister(dirLister);  // m_dolphinModel takes ownership of dirLister
1429     m_dolphinModel->setDropsAllowed(DolphinModel::DropOnDirectory);
1430
1431     m_proxyModel = new DolphinSortFilterProxyModel();
1432     m_proxyModel->setSourceModel(m_dolphinModel);
1433     m_proxyModel->setFilterCaseSensitivity(Qt::CaseInsensitive);
1434 }
1435
1436 DolphinView::ViewAccessor::~ViewAccessor()
1437 {
1438     delete m_proxyModel;
1439     m_proxyModel = 0;
1440
1441     delete m_dolphinModel;
1442     m_dolphinModel = 0;
1443
1444     delete m_dragSource;
1445     m_dragSource = 0;
1446 }
1447
1448 void DolphinView::ViewAccessor::createView(QWidget* parent,
1449                                            DolphinViewController* dolphinViewController,
1450                                            const ViewModeController* viewModeController,
1451                                            Mode mode)
1452 {
1453     Q_ASSERT(!itemView());
1454
1455     switch (mode) {
1456     case IconsView:
1457         m_iconsView = new DolphinIconsView(parent,
1458                                            dolphinViewController,
1459                                            viewModeController,
1460                                            m_proxyModel);
1461         break;
1462
1463     case DetailsView:
1464         m_detailsView = new DolphinDetailsView(parent,
1465                                                dolphinViewController,
1466                                                viewModeController,
1467                                                m_proxyModel);
1468         break;
1469
1470     case ColumnView:
1471         m_columnsContainer = new DolphinColumnViewContainer(parent,
1472                                                             dolphinViewController,
1473                                                             viewModeController);
1474         if (!m_rootUrl.isEmpty() && m_rootUrl.isParentOf(viewModeController->url())) {
1475             // The column-view must show several columns starting with m_rootUrl as
1476             // first column and viewModeController->url() as last column.
1477             m_columnsContainer->showColumn(m_rootUrl);
1478             m_columnsContainer->showColumn(viewModeController->url());
1479         }
1480         break;
1481
1482     default:
1483         Q_ASSERT(false);
1484     }
1485 }
1486
1487 void DolphinView::ViewAccessor::deleteView()
1488 {
1489     if (m_columnsContainer) {
1490         m_columnsContainer->close();
1491         m_columnsContainer->disconnect();
1492         m_columnsContainer->deleteLater();
1493         m_columnsContainer = 0;
1494     } else {
1495         QAbstractItemView* view = itemView();
1496         if (view) {
1497             view->close();
1498             view->disconnect();
1499
1500             if (DragAndDropHelper::instance().isDragSource(view)) {
1501                 // The view is a drag source (the feature "Open folders
1502                 // during drag operations" is used). Deleting the view
1503                 // during an ongoing drag operation is not allowed, so
1504                 // this will postponed.
1505                 if (m_dragSource) {
1506                     // the old stored view is obviously not the drag source anymore
1507                     m_dragSource->deleteLater();
1508                     m_dragSource = 0;
1509                 }
1510                 view->hide();
1511                 m_dragSource = view;
1512             } else {
1513                 view->deleteLater();
1514                 view = 0;
1515             }
1516         }
1517
1518         m_iconsView = 0;
1519         m_detailsView = 0;
1520     }
1521 }
1522
1523 void DolphinView::ViewAccessor::prepareUrlChange(const KUrl& url)
1524 {
1525     if (m_columnsContainer) {
1526         m_columnsContainer->showColumn(url);
1527     }
1528 }
1529
1530 QAbstractItemView* DolphinView::ViewAccessor::itemView() const
1531 {
1532     if (m_iconsView) {
1533         return m_iconsView;
1534     }
1535
1536     if (m_detailsView) {
1537         return m_detailsView;
1538     }
1539
1540     if (m_columnsContainer) {
1541         return m_columnsContainer->activeColumn();
1542     }
1543
1544     return 0;
1545 }
1546
1547 KFileItemDelegate* DolphinView::ViewAccessor::itemDelegate() const
1548 {
1549     return static_cast<KFileItemDelegate*>(itemView()->itemDelegate());
1550 }
1551
1552 QWidget* DolphinView::ViewAccessor::layoutTarget() const
1553 {
1554     if (m_columnsContainer) {
1555         return m_columnsContainer;
1556     }
1557     return itemView();
1558 }
1559
1560 void DolphinView::ViewAccessor::setRootUrl(const KUrl& rootUrl)
1561 {
1562     m_rootUrl = rootUrl;
1563 }
1564
1565 KUrl DolphinView::ViewAccessor::rootUrl() const
1566 {
1567     return m_columnsContainer ? m_columnsContainer->rootUrl() : m_rootUrl;
1568 }
1569
1570 bool DolphinView::ViewAccessor::supportsCategorizedSorting() const
1571 {
1572     return m_iconsView != 0;
1573 }
1574
1575 bool DolphinView::ViewAccessor::itemsExpandable() const
1576 {
1577     return m_detailsView && m_detailsView->itemsExpandable();
1578 }
1579
1580 QSet<KUrl> DolphinView::ViewAccessor::expandedUrls() const
1581 {
1582     if (m_detailsView) {
1583         return m_detailsView->expandedUrls();
1584     }
1585
1586     return QSet<KUrl>();
1587 }
1588
1589 const DolphinDetailsViewExpander* DolphinView::ViewAccessor::setExpandedUrls(const QSet<KUrl>& urlsToExpand)
1590 {
1591     if (m_detailsView && m_detailsView->itemsExpandable() && !urlsToExpand.isEmpty()) {
1592         // Check if another expander is already active and stop it if necessary.
1593         if(!m_detailsViewExpander.isNull()) {
1594             m_detailsViewExpander->stop();
1595         }
1596
1597         m_detailsViewExpander = new DolphinDetailsViewExpander(m_detailsView, urlsToExpand);
1598         return m_detailsViewExpander;
1599     }
1600     else {
1601         return 0;
1602     }
1603 }
1604
1605 bool DolphinView::ViewAccessor::reloadOnAdditionalInfoChange() const
1606 {
1607     // the details view requires no reloading of the directory, as it maps
1608     // the file item delegate info to its columns internally
1609     return m_detailsView != 0;
1610 }
1611
1612 DolphinModel* DolphinView::ViewAccessor::dirModel() const
1613 {
1614     return static_cast<DolphinModel*>(proxyModel()->sourceModel());
1615 }
1616
1617 DolphinSortFilterProxyModel* DolphinView::ViewAccessor::proxyModel() const
1618 {
1619     if (m_columnsContainer) {
1620         return static_cast<DolphinSortFilterProxyModel*>(m_columnsContainer->activeColumn()->model());
1621     }
1622     return m_proxyModel;
1623 }
1624
1625 KDirLister* DolphinView::ViewAccessor::dirLister() const
1626 {
1627     return dirModel()->dirLister();
1628 }
1629
1630 #include "dolphinview.moc"