src/views/dolphinview.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006-2009 by Peter Penz <peter.penz@gmx.at>             *
   3  *   Copyright (C) 2006 by Gregor Kališnik <gregor@podnapisi.net>          *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  19  ***************************************************************************/
  20
  21 #include "dolphinview.h"
  22
  23 #include <QAbstractItemView>
  24 #include <QApplication>
  25 #include <QClipboard>
  26 #include <QKeyEvent>
  27 #include <QItemSelection>
  28 #include <QBoxLayout>
  29 #include <QTimer>
  30 #include <QScrollBar>
  31
  32 #include <kactioncollection.h>
  33 #include <kcolorscheme.h>
  34 #include <kdirlister.h>
  35 #include <kiconeffect.h>
  36 #include <kfileitem.h>
  37 #include <kfileitemlistproperties.h>
  38 #include <klocale.h>
  39 #include <kio/deletejob.h>
  40 #include <kio/netaccess.h>
  41 #include <kio/previewjob.h>
  42 #include <kjob.h>
  43 #include <kmenu.h>
  44 #include <kmessagebox.h>
  45 #include <konq_fileitemcapabilities.h>
  46 #include <konq_operations.h>
  47 #include <konqmimedata.h>
  48 #include <ktoggleaction.h>
  49 #include <kurl.h>
  50
  51 #include "additionalinfoaccessor.h"
  52 #include "dolphinmodel.h"
  53 #include "dolphincolumnviewcontainer.h"
  54 #include "dolphinviewcontroller.h"
  55 #include "dolphindetailsview.h"
  56 #include "dolphinfileitemdelegate.h"
  57 #include "dolphinnewfilemenuobserver.h"
  58 #include "dolphinsortfilterproxymodel.h"
  59 #include "dolphin_detailsmodesettings.h"
  60 #include "dolphiniconsview.h"
  61 #include "dolphin_generalsettings.h"
  62 #include "draganddrophelper.h"
  63 #include "renamedialog.h"
  64 #include "settings/dolphinsettings.h"
  65 #include "viewmodecontroller.h"
  66 #include "viewproperties.h"
  67 #include "zoomlevelinfo.h"
  68 #include "dolphindetailsviewexpander.h"
  69
  70 DolphinView::DolphinView(QWidget* parent,
  71                          const KUrl& url,
  72                          DolphinSortFilterProxyModel* proxyModel) :
  73     QWidget(parent),
  74     m_active(true),
  75     m_showPreview(false),
  76     m_storedCategorizedSorting(false),
  77     m_tabsForFiles(false),
  78     m_isContextMenuOpen(false),
  79     m_assureVisibleCurrentIndex(false),
  80     m_expanderActive(false),
  81     m_isFolderWritable(true),
  82     m_mode(DolphinView::IconsView),
  83     m_topLayout(0),
  84     m_dolphinViewController(0),
  85     m_viewModeController(0),
  86     m_viewAccessor(proxyModel),
  87     m_selectionChangedTimer(0),
  88     m_activeItemUrl(),
  89     m_restoredContentsPosition(),
  90     m_createdItemUrl(),
  91     m_selectedItems(),
  92     m_newFileNames()
  93 {
  94     m_topLayout = new QVBoxLayout(this);
  95     m_topLayout->setSpacing(0);
  96     m_topLayout->setMargin(0);
  97
  98     m_dolphinViewController = new DolphinViewController(this);
  99
 100     m_viewModeController = new ViewModeController(this);
 101     m_viewModeController->setUrl(url);
 102
 103     connect(m_viewModeController, SIGNAL(urlChanged(const KUrl&)),
 104             this, SIGNAL(urlChanged(const KUrl&)));
 105
 106     connect(m_dolphinViewController, SIGNAL(requestContextMenu(const QPoint&, const QList<QAction*>&)),
 107             this, SLOT(openContextMenu(const QPoint&, const QList<QAction*>&)));
 108     connect(m_dolphinViewController, SIGNAL(urlsDropped(const KFileItem&, const KUrl&, QDropEvent*)),
 109             this, SLOT(dropUrls(const KFileItem&, const KUrl&, QDropEvent*)));
 110     connect(m_dolphinViewController, SIGNAL(sortingChanged(DolphinView::Sorting)),
 111             this, SLOT(updateSorting(DolphinView::Sorting)));
 112     connect(m_dolphinViewController, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 113             this, SLOT(updateSortOrder(Qt::SortOrder)));
 114     connect(m_dolphinViewController, SIGNAL(sortFoldersFirstChanged(bool)),
 115             this, SLOT(updateSortFoldersFirst(bool)));
 116     connect(m_dolphinViewController, SIGNAL(additionalInfoChanged(const KFileItemDelegate::InformationList&)),
 117             this, SLOT(updateAdditionalInfo(const KFileItemDelegate::InformationList&)));
 118     connect(m_dolphinViewController, SIGNAL(itemTriggered(const KFileItem&)),
 119             this, SLOT(triggerItem(const KFileItem&)));
 120     connect(m_dolphinViewController, SIGNAL(tabRequested(const KUrl&)),
 121             this, SIGNAL(tabRequested(const KUrl&)));
 122     connect(m_dolphinViewController, SIGNAL(activated()),
 123             this, SLOT(activate()));
 124     connect(m_dolphinViewController, SIGNAL(itemEntered(const KFileItem&)),
 125             this, SLOT(showHoverInformation(const KFileItem&)));
 126     connect(m_dolphinViewController, SIGNAL(viewportEntered()),
 127             this, SLOT(clearHoverInformation()));
 128     connect(m_dolphinViewController, SIGNAL(urlChangeRequested(KUrl)),
 129             this, SLOT(slotUrlChangeRequested(KUrl)));
 130
 131     // When a new item has been created by the "Create New..." menu, the item should
 132     // get selected and it must be assured that the item will get visible. As the
 133     // creation is done asynchronously, several signals must be checked:
 134     connect(&DolphinNewFileMenuObserver::instance(), SIGNAL(itemCreated(const KUrl&)),
 135             this, SLOT(observeCreatedItem(const KUrl&)));
 136
 137     m_selectionChangedTimer = new QTimer(this);
 138     m_selectionChangedTimer->setSingleShot(true);
 139     m_selectionChangedTimer->setInterval(300);
 140     connect(m_selectionChangedTimer, SIGNAL(timeout()),
 141             this, SLOT(emitSelectionChangedSignal()));
 142
 143     applyViewProperties();
 144     m_topLayout->addWidget(m_viewAccessor.layoutTarget());
 145 }
 146
 147 DolphinView::~DolphinView()
 148 {
 149 }
 150
 151 KUrl DolphinView::url() const
 152 {
 153     return m_viewModeController->url();
 154 }
 155
 156 KUrl DolphinView::rootUrl() const
 157 {
 158     const KUrl viewUrl = url();
 159     const KUrl root = m_viewAccessor.rootUrl();
 160     if (root.isEmpty() || !root.isParentOf(viewUrl)) {
 161         return viewUrl;
 162     }
 163     return root;
 164 }
 165
 166 void DolphinView::setActive(bool active)
 167 {
 168     if (active == m_active) {
 169         return;
 170     }
 171
 172     m_active = active;
 173
 174     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 175     if (!active) {
 176         color.setAlpha(150);
 177     }
 178
 179     QWidget* viewport = m_viewAccessor.itemView()->viewport();
 180     QPalette palette;
 181     palette.setColor(viewport->backgroundRole(), color);
 182     viewport->setPalette(palette);
 183
 184     update();
 185
 186     if (active) {
 187         m_viewAccessor.itemView()->setFocus();
 188         emit activated();
 189         emitSelectionChangedSignal();
 190         emit writeStateChanged(m_isFolderWritable);
 191     }
 192
 193     m_viewModeController->indicateActivationChange(active);
 194 }
 195
 196 bool DolphinView::isActive() const
 197 {
 198     return m_active;
 199 }
 200
 201 void DolphinView::setMode(Mode mode)
 202 {
 203     if (mode == m_mode) {
 204         return; // the wished mode is already set
 205     }
 206
 207     const int oldZoomLevel = m_viewModeController->zoomLevel();
 208     m_mode = mode;
 209
 210     // remember the currently selected items, so that they will
 211     // be restored after reloading the directory
 212     m_selectedItems = selectedItems();
 213
 214     const bool hasFocus = m_viewAccessor.itemView()->hasFocus();
 215     deleteView();
 216
 217     const KUrl viewPropsUrl = rootUrl();
 218     ViewProperties props(viewPropsUrl);
 219     props.setViewMode(m_mode);
 220     createView();
 221
 222     if (hasFocus) {
 223         m_viewAccessor.itemView()->setFocus();
 224     }
 225
 226     // the file item delegate has been recreated, apply the current
 227     // additional information manually
 228     const KFileItemDelegate::InformationList infoList = props.additionalInfo();
 229     m_viewAccessor.itemDelegate()->setShowInformation(infoList);
 230     emit additionalInfoChanged();
 231
 232     // Not all view modes support categorized sorting. Adjust the sorting model
 233     // if changing the view mode results in a change of the categorized sorting
 234     // capabilities.
 235     m_storedCategorizedSorting = props.categorizedSorting();
 236     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 237     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
 238         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 239         emit categorizedSortingChanged();
 240     }
 241
 242     emit modeChanged();
 243
 244     updateZoomLevel(oldZoomLevel);
 245     loadDirectory(viewPropsUrl);
 246 }
 247
 248 DolphinView::Mode DolphinView::mode() const
 249 {
 250     return m_mode;
 251 }
 252
 253 bool DolphinView::showPreview() const
 254 {
 255     return m_showPreview;
 256 }
 257
 258 bool DolphinView::showHiddenFiles() const
 259 {
 260     return m_viewAccessor.dirLister()->showingDotFiles();
 261 }
 262
 263 bool DolphinView::categorizedSorting() const
 264 {
 265     // If all view modes would support categorized sorting, returning
 266     // m_viewAccessor.proxyModel()->isCategorizedModel() would be the way to go. As
 267     // currently only the icons view supports caterized sorting, we remember
 268     // the stored view properties state in m_storedCategorizedSorting and
 269     // return this state. The application takes care to disable the corresponding
 270     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 271     // that this setting is not applied to the current view mode.
 272     return m_storedCategorizedSorting;
 273 }
 274
 275 bool DolphinView::supportsCategorizedSorting() const
 276 {
 277     return m_viewAccessor.supportsCategorizedSorting();
 278 }
 279
 280 KFileItemList DolphinView::items() const
 281 {
 282     return m_viewAccessor.dirLister()->items();
 283 }
 284
 285 KFileItemList DolphinView::selectedItems() const
 286 {
 287     KFileItemList itemList;
 288     const QAbstractItemView* view = m_viewAccessor.itemView();
 289     if (view == 0) {
 290         return itemList;
 291     }
 292
 293     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
 294
 295     const QModelIndexList indexList = selection.indexes();
 296     foreach (const QModelIndex &index, indexList) {
 297         KFileItem item = m_viewAccessor.dirModel()->itemForIndex(index);
 298         if (!item.isNull()) {
 299             itemList.append(item);
 300         }
 301     }
 302
 303     return itemList;
 304 }
 305
 306 int DolphinView::selectedItemsCount() const
 307 {
 308     const QAbstractItemView* view = m_viewAccessor.itemView();
 309     if (view == 0) {
 310         return 0;
 311     }
 312
 313     return view->selectionModel()->selectedIndexes().count();
 314 }
 315
 316 void DolphinView::markUrlsAsSelected(const QList<KUrl>& urls)
 317 {
 318     foreach (const KUrl& url, urls) {
 319         KFileItem item(KFileItem::Unknown, KFileItem::Unknown, url);
 320         m_selectedItems.append(item);
 321     }
 322 }
 323
 324 void DolphinView::setItemSelectionEnabled(const QRegExp& pattern, bool enabled)
 325 {
 326     const QItemSelection matchingIndexes = childrenMatchingPattern(QModelIndex(), pattern);
 327     const QItemSelectionModel::SelectionFlags command = enabled
 328                                                       ? QItemSelectionModel::Select
 329                                                       : QItemSelectionModel::Deselect;
 330     m_viewAccessor.itemView()->selectionModel()->select(matchingIndexes, command);
 331 }
 332
 333 void DolphinView::setZoomLevel(int level)
 334 {
 335     if (level < ZoomLevelInfo::minimumLevel()) {
 336         level = ZoomLevelInfo::minimumLevel();
 337     } else if (level > ZoomLevelInfo::maximumLevel()) {
 338         level = ZoomLevelInfo::maximumLevel();
 339     }
 340
 341     if (level != zoomLevel()) {
 342         m_viewModeController->setZoomLevel(level);
 343         emit zoomLevelChanged(level);
 344     }
 345 }
 346
 347 int DolphinView::zoomLevel() const
 348 {
 349     return m_viewModeController->zoomLevel();
 350 }
 351
 352 void DolphinView::setSorting(Sorting sorting)
 353 {
 354     if (sorting != this->sorting()) {
 355         updateSorting(sorting);
 356     }
 357 }
 358
 359 DolphinView::Sorting DolphinView::sorting() const
 360 {
 361     return m_viewAccessor.proxyModel()->sorting();
 362 }
 363
 364 void DolphinView::setSortOrder(Qt::SortOrder order)
 365 {
 366     if (sortOrder() != order) {
 367         updateSortOrder(order);
 368     }
 369 }
 370
 371 Qt::SortOrder DolphinView::sortOrder() const
 372 {
 373     return m_viewAccessor.proxyModel()->sortOrder();
 374 }
 375
 376 void DolphinView::setSortFoldersFirst(bool foldersFirst)
 377 {
 378     if (sortFoldersFirst() != foldersFirst) {
 379         updateSortFoldersFirst(foldersFirst);
 380     }
 381 }
 382
 383 bool DolphinView::sortFoldersFirst() const
 384 {
 385     return m_viewAccessor.proxyModel()->sortFoldersFirst();
 386 }
 387
 388 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 389 {
 390     const KUrl viewPropsUrl = rootUrl();
 391     ViewProperties props(viewPropsUrl);
 392     props.setAdditionalInfo(info);
 393     m_viewAccessor.itemDelegate()->setShowInformation(info);
 394
 395     emit additionalInfoChanged();
 396
 397     if (m_viewAccessor.reloadOnAdditionalInfoChange()) {
 398         loadDirectory(viewPropsUrl);
 399     }
 400 }
 401
 402 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 403 {
 404     return m_viewAccessor.itemDelegate()->showInformation();
 405 }
 406
 407 void DolphinView::reload()
 408 {
 409     QByteArray viewState;
 410     QDataStream saveStream(&viewState, QIODevice::WriteOnly);
 411     saveState(saveStream);
 412     m_selectedItems= selectedItems();
 413
 414     setUrl(url());
 415     loadDirectory(url(), true);
 416
 417     QDataStream restoreStream(viewState);
 418     restoreState(restoreStream);
 419 }
 420
 421 void DolphinView::stopLoading()
 422 {
 423     m_viewAccessor.dirLister()->stop();
 424 }
 425
 426 void DolphinView::refresh()
 427 {
 428     const bool oldActivationState = m_active;
 429     const int oldZoomLevel = m_viewModeController->zoomLevel();
 430     m_active = true;
 431
 432     createView();
 433     applyViewProperties();
 434     reload();
 435
 436     setActive(oldActivationState);
 437     updateZoomLevel(oldZoomLevel);
 438 }
 439
 440 void DolphinView::setNameFilter(const QString& nameFilter)
 441 {
 442     m_viewModeController->setNameFilter(nameFilter);
 443 }
 444
 445 void DolphinView::calculateItemCount(int& fileCount,
 446                                      int& folderCount,
 447                                      KIO::filesize_t& totalFileSize) const
 448 {
 449     foreach (const KFileItem& item, m_viewAccessor.dirLister()->items()) {
 450         if (item.isDir()) {
 451             ++folderCount;
 452         } else {
 453             ++fileCount;
 454             totalFileSize += item.size();
 455         }
 456     }
 457 }
 458
 459 QString DolphinView::statusBarText() const
 460 {
 461     QString text;
 462     int folderCount = 0;
 463     int fileCount = 0;
 464     KIO::filesize_t totalFileSize = 0;
 465
 466     if (hasSelection()) {
 467         // give a summary of the status of the selected files
 468         const KFileItemList list = selectedItems();
 469         if (list.isEmpty()) {
 470             // when an item is triggered, it is temporary selected but selectedItems()
 471             // will return an empty list
 472             return text;
 473         }
 474
 475         KFileItemList::const_iterator it = list.begin();
 476         const KFileItemList::const_iterator end = list.end();
 477         while (it != end) {
 478             const KFileItem& item = *it;
 479             if (item.isDir()) {
 480                 ++folderCount;
 481             } else {
 482                 ++fileCount;
 483                 totalFileSize += item.size();
 484             }
 485             ++it;
 486         }
 487
 488         if (folderCount + fileCount == 1) {
 489             // if only one item is selected, show the filename
 490             const QString name = list.first().text();
 491             text = (folderCount == 1) ? i18nc("@info:status", "<filename>%1</filename> selected", name) :
 492                                         i18nc("@info:status", "<filename>%1</filename> selected (%2)",
 493                                               name, KIO::convertSize(totalFileSize));
 494         } else {
 495             // at least 2 items are selected
 496             const QString foldersText = i18ncp("@info:status", "1 Folder selected", "%1 Folders selected", folderCount);
 497             const QString filesText = i18ncp("@info:status", "1 File selected", "%1 Files selected", fileCount);
 498             if ((folderCount > 0) && (fileCount > 0)) {
 499                 text = i18nc("@info:status folders, files (size)", "%1, %2 (%3)",
 500                              foldersText, filesText, KIO::convertSize(totalFileSize));
 501             } else if (fileCount > 0) {
 502                 text = i18nc("@info:status files (size)", "%1 (%2)", filesText, KIO::convertSize(totalFileSize));
 503             } else {
 504                 Q_ASSERT(folderCount > 0);
 505                 text = foldersText;
 506             }
 507         }
 508     } else {
 509         calculateItemCount(fileCount, folderCount, totalFileSize);
 510         text = KIO::itemsSummaryString(fileCount + folderCount,
 511                                        fileCount, folderCount,
 512                                        totalFileSize, true);
 513     }
 514
 515     return text;
 516 }
 517
 518 QList<QAction*> DolphinView::versionControlActions(const KFileItemList& items) const
 519 {
 520     return m_dolphinViewController->versionControlActions(items);
 521 }
 522
 523 void DolphinView::setUrl(const KUrl& url)
 524 {
 525     if (m_viewModeController->url() == url) {
 526         return;
 527     }
 528
 529     const bool hadSelection = hasSelection();
 530
 531     // The selection model and directory lister might change in the case of the column view:
 532     disconnectViewAccessor();
 533
 534     m_newFileNames.clear();
 535
 536     m_viewModeController->setUrl(url); // emits urlChanged, which we forward
 537     m_viewAccessor.prepareUrlChange(url);
 538     applyViewProperties();
 539
 540     // When changing the URL there is no need to keep the version
 541     // data of the previous URL.
 542     m_viewAccessor.dirModel()->clearVersionData();
 543
 544     // Reconnect to the (probably) new selection model and directory lister
 545     connectViewAccessor();
 546     loadDirectory(url);
 547
 548     if (hadSelection || hasSelection()) {
 549         emitSelectionChangedSignal();
 550     }
 551 }
 552
 553 void DolphinView::selectAll()
 554 {
 555     m_viewAccessor.itemView()->selectAll();
 556 }
 557
 558 void DolphinView::invertSelection()
 559 {
 560     QItemSelectionModel* selectionModel = m_viewAccessor.itemView()->selectionModel();
 561     const QAbstractItemModel* itemModel = selectionModel->model();
 562
 563     const QModelIndex topLeft = itemModel->index(0, 0);
 564     const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 565                                                      itemModel->columnCount() - 1);
 566
 567     const QItemSelection selection(topLeft, bottomRight);
 568     selectionModel->select(selection, QItemSelectionModel::Toggle);
 569 }
 570
 571 void DolphinView::clearSelection()
 572 {
 573     m_viewAccessor.itemView()->clearSelection();
 574 }
 575
 576 void DolphinView::renameSelectedItems()
 577 {
 578     KFileItemList items = selectedItems();
 579     const int itemCount = items.count();
 580     if (itemCount < 1) {
 581         return;
 582     }
 583
 584     if ((itemCount == 1) && DolphinSettings::instance().generalSettings()->renameInline()) {
 585         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForItem(items.first());
 586         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
 587         m_viewAccessor.itemView()->edit(proxyIndex);
 588     } else {
 589         RenameDialog* dialog = new RenameDialog(this, items);
 590         dialog->setAttribute(Qt::WA_DeleteOnClose);
 591         dialog->show();
 592         dialog->raise();
 593         dialog->activateWindow();
 594     }
 595 }
 596
 597 void DolphinView::trashSelectedItems()
 598 {
 599     const KUrl::List list = simplifiedSelectedUrls();
 600     KonqOperations::del(this, KonqOperations::TRASH, list);
 601 }
 602
 603 void DolphinView::deleteSelectedItems()
 604 {
 605     const KUrl::List list = simplifiedSelectedUrls();
 606     const bool del = KonqOperations::askDeleteConfirmation(list,
 607                      KonqOperations::DEL,
 608                      KonqOperations::DEFAULT_CONFIRMATION,
 609                      this);
 610
 611     if (del) {
 612         KIO::Job* job = KIO::del(list);
 613         connect(job, SIGNAL(result(KJob*)),
 614                 this, SLOT(slotDeleteFileFinished(KJob*)));
 615     }
 616 }
 617
 618 void DolphinView::cutSelectedItems()
 619 {
 620     QMimeData* mimeData = selectionMimeData();
 621     KonqMimeData::addIsCutSelection(mimeData, true);
 622     QApplication::clipboard()->setMimeData(mimeData);
 623 }
 624
 625 void DolphinView::copySelectedItems()
 626 {
 627     QMimeData* mimeData = selectionMimeData();
 628     QApplication::clipboard()->setMimeData(mimeData);
 629 }
 630
 631 void DolphinView::paste()
 632 {
 633     pasteToUrl(url());
 634 }
 635
 636 void DolphinView::pasteIntoFolder()
 637 {
 638     const KFileItemList items = selectedItems();
 639     if ((items.count() == 1) && items.first().isDir()) {
 640         pasteToUrl(items.first().url());
 641     }
 642 }
 643
 644 void DolphinView::setShowPreview(bool show)
 645 {
 646     if (m_showPreview == show) {
 647         return;
 648     }
 649
 650     const KUrl viewPropsUrl = rootUrl();
 651     ViewProperties props(viewPropsUrl);
 652     props.setShowPreview(show);
 653
 654     m_showPreview = show;
 655     const int oldZoomLevel = m_viewModeController->zoomLevel();
 656     emit showPreviewChanged();
 657
 658     // Enabling or disabling the preview might change the icon size of the view.
 659     // As the view does not emit a signal when the icon size has been changed,
 660     // the used zoom level of the controller must be adjusted manually:
 661     updateZoomLevel(oldZoomLevel);
 662 }
 663
 664 void DolphinView::setShowHiddenFiles(bool show)
 665 {
 666     if (m_viewAccessor.dirLister()->showingDotFiles() == show) {
 667         return;
 668     }
 669
 670     const KUrl viewPropsUrl = rootUrl();
 671     ViewProperties props(viewPropsUrl);
 672     props.setShowHiddenFiles(show);
 673
 674     m_viewAccessor.dirLister()->setShowingDotFiles(show);
 675     emit showHiddenFilesChanged();
 676 }
 677
 678 void DolphinView::setCategorizedSorting(bool categorized)
 679 {
 680     if (categorized == categorizedSorting()) {
 681         return;
 682     }
 683
 684     // setCategorizedSorting(true) may only get invoked
 685     // if the view supports categorized sorting
 686     Q_ASSERT(!categorized || supportsCategorizedSorting());
 687
 688     ViewProperties props(rootUrl());
 689     props.setCategorizedSorting(categorized);
 690     props.save();
 691
 692     m_storedCategorizedSorting = categorized;
 693     m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 694
 695     emit categorizedSortingChanged();
 696 }
 697
 698 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 699 {
 700     QWidget::mouseReleaseEvent(event);
 701     setActive(true);
 702 }
 703
 704 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 705 {
 706     switch (event->type()) {
 707     case QEvent::FocusIn:
 708         if (watched == m_viewAccessor.itemView()) {
 709             m_dolphinViewController->requestActivation();
 710         }
 711         break;
 712
 713     case QEvent::DragEnter:
 714         if (watched == m_viewAccessor.itemView()->viewport()) {
 715             setActive(true);
 716         }
 717         break;
 718
 719     case QEvent::KeyPress:
 720         if (watched == m_viewAccessor.itemView()) {
 721             // clear the selection when Escape has been pressed
 722             QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
 723             if (keyEvent->key() == Qt::Key_Escape) {
 724                 clearSelection();
 725             }
 726         }
 727         break;
 728
 729     case QEvent::Wheel:
 730         if (watched == m_viewAccessor.itemView()->viewport()) {
 731             // Ctrl+wheel events should cause icon zooming, but not if the left mouse button is pressed
 732             // (the user is probably trying to scroll during a selection in that case)
 733             QWheelEvent* wheelEvent = static_cast<QWheelEvent*>(event);
 734             if (wheelEvent->modifiers() & Qt::ControlModifier && !(wheelEvent->buttons() & Qt::LeftButton)) {
 735                 const int delta = wheelEvent->delta();
 736                 const int level = zoomLevel();
 737                 if (delta > 0) {
 738                     setZoomLevel(level + 1);
 739                 } else if (delta < 0) {
 740                     setZoomLevel(level - 1);
 741                 }
 742                 return true;
 743             }
 744         }
 745         break;
 746
 747     default:
 748         break;
 749     }
 750
 751     return QWidget::eventFilter(watched, event);
 752 }
 753
 754 void DolphinView::activate()
 755 {
 756     setActive(true);
 757 }
 758
 759 void DolphinView::triggerItem(const KFileItem& item)
 760 {
 761     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 762     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 763         // items are selected by the user, hence don't trigger the
 764         // item specified by 'index'
 765         return;
 766     }
 767
 768     // TODO: the m_isContextMenuOpen check is a workaround for Qt-issue 207192
 769     if (item.isNull() || m_isContextMenuOpen) {
 770         return;
 771     }
 772
 773     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 774 }
 775
 776 void DolphinView::slotSelectionChanged(const QItemSelection& selected, const QItemSelection& deselected)
 777 {
 778     const int count = selectedItemsCount();
 779     const bool selectionStateChanged = ((count >  0) && (selected.count() == count)) ||
 780                                        ((count == 0) && !deselected.isEmpty());
 781
 782     // If nothing has been selected before and something got selected (or if something
 783     // was selected before and now nothing is selected) the selectionChangedSignal must
 784     // be emitted asynchronously as fast as possible to update the edit-actions.
 785     m_selectionChangedTimer->setInterval(selectionStateChanged ? 0 : 300);
 786     m_selectionChangedTimer->start();
 787 }
 788
 789 void DolphinView::emitSelectionChangedSignal()
 790 {
 791     m_selectionChangedTimer->stop();
 792     emit selectionChanged(selectedItems());
 793 }
 794
 795 void DolphinView::openContextMenu(const QPoint& pos,
 796                                   const QList<QAction*>& customActions)
 797 {
 798     KFileItem item;
 799     const QModelIndex index = m_viewAccessor.itemView()->indexAt(pos);
 800     if (index.isValid() && (index.column() == DolphinModel::Name)) {
 801         const QModelIndex dolphinModelIndex = m_viewAccessor.proxyModel()->mapToSource(index);
 802         item = m_viewAccessor.dirModel()->itemForIndex(dolphinModelIndex);
 803     }
 804
 805     m_isContextMenuOpen = true; // TODO: workaround for Qt-issue 207192
 806     emit requestContextMenu(item, url(), customActions);
 807     m_isContextMenuOpen = false;
 808 }
 809
 810 void DolphinView::dropUrls(const KFileItem& destItem,
 811                            const KUrl& destPath,
 812                            QDropEvent* event)
 813 {
 814     addNewFileNames(event->mimeData());
 815     DragAndDropHelper::instance().dropUrls(destItem, destPath, event, this);
 816 }
 817
 818 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 819 {
 820     ViewProperties props(rootUrl());
 821     props.setSorting(sorting);
 822
 823     m_viewAccessor.proxyModel()->setSorting(sorting);
 824
 825     emit sortingChanged(sorting);
 826 }
 827
 828 void DolphinView::updateSortOrder(Qt::SortOrder order)
 829 {
 830     ViewProperties props(rootUrl());
 831     props.setSortOrder(order);
 832
 833     m_viewAccessor.proxyModel()->setSortOrder(order);
 834
 835     emit sortOrderChanged(order);
 836 }
 837
 838 void DolphinView::updateSortFoldersFirst(bool foldersFirst)
 839 {
 840     ViewProperties props(rootUrl());
 841     props.setSortFoldersFirst(foldersFirst);
 842
 843     m_viewAccessor.proxyModel()->setSortFoldersFirst(foldersFirst);
 844
 845     emit sortFoldersFirstChanged(foldersFirst);
 846 }
 847
 848 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 849 {
 850     ViewProperties props(rootUrl());
 851     props.setAdditionalInfo(info);
 852     props.save();
 853
 854     m_viewAccessor.itemDelegate()->setShowInformation(info);
 855
 856     emit additionalInfoChanged();
 857 }
 858
 859 void DolphinView::updateAdditionalInfoActions(KActionCollection* collection)
 860 {
 861     const AdditionalInfoAccessor& infoAccessor = AdditionalInfoAccessor::instance();
 862
 863     const KFileItemDelegate::InformationList checkedInfo = m_viewAccessor.itemDelegate()->showInformation();
 864     const KFileItemDelegate::InformationList infoKeys = infoAccessor.keys();
 865
 866     const bool enable = (m_mode == DolphinView::DetailsView) ||
 867                         (m_mode == DolphinView::IconsView);
 868
 869     foreach (const KFileItemDelegate::Information& info, infoKeys) {
 870         const QString name = infoAccessor.actionCollectionName(info, AdditionalInfoAccessor::AdditionalInfoType);
 871         QAction* action = collection->action(name);
 872         Q_ASSERT(action != 0);
 873         action->setEnabled(enable);
 874         action->setChecked(checkedInfo.contains(info));
 875     }
 876 }
 877
 878 QPair<bool, QString> DolphinView::pasteInfo() const
 879 {
 880     return KonqOperations::pasteInfo(url());
 881 }
 882
 883 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
 884 {
 885     m_tabsForFiles = tabsForFiles;
 886 }
 887
 888 bool DolphinView::isTabsForFilesEnabled() const
 889 {
 890     return m_tabsForFiles;
 891 }
 892
 893 bool DolphinView::itemsExpandable() const
 894 {
 895     return m_viewAccessor.itemsExpandable();
 896 }
 897
 898 void DolphinView::restoreState(QDataStream& stream)
 899 {
 900     // Restore the URL of the current item that had the keyboard focus
 901     stream >> m_activeItemUrl;
 902
 903     // Restore the root URL
 904     KUrl rootUrl;
 905     stream >> rootUrl;
 906     m_viewAccessor.setRootUrl(rootUrl);
 907
 908     // Restore the view position
 909     stream >> m_restoredContentsPosition;
 910
 911     // Restore expanded folders (only relevant for the details view - will be ignored by the view in other view modes)
 912     QSet<KUrl> urlsToExpand;
 913     stream >> urlsToExpand;
 914     const DolphinDetailsViewExpander* expander = m_viewAccessor.setExpandedUrls(urlsToExpand);
 915     if (expander != 0) {
 916         m_expanderActive = true;
 917         connect (expander, SIGNAL(completed()), this, SLOT(slotLoadingCompleted()));
 918     }
 919     else {
 920         m_expanderActive = false;
 921     }
 922 }
 923
 924 void DolphinView::saveState(QDataStream& stream)
 925 {
 926     // Save the URL of the current item that has the keyboard focus
 927     KFileItem currentItem;
 928     const QAbstractItemView* view = m_viewAccessor.itemView();
 929
 930     if (view != 0) {
 931         const QModelIndex proxyIndex = view->currentIndex();
 932         const QModelIndex dirModelIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
 933         currentItem = m_viewAccessor.dirModel()->itemForIndex(dirModelIndex);
 934     }
 935
 936     KUrl currentItemUrl;
 937     if (!currentItem.isNull()) {
 938         currentItemUrl = currentItem.url();
 939     }
 940
 941     stream << currentItemUrl;
 942
 943     // Save the root URL
 944     stream << m_viewAccessor.rootUrl();
 945
 946     // Save view position
 947     const int x = view->horizontalScrollBar()->value();
 948     const int y = view->verticalScrollBar()->value();
 949     stream << QPoint(x, y);
 950
 951     // Save expanded folders (only relevant for the details view - the set will be empty in other view modes)
 952     stream << m_viewAccessor.expandedUrls();
 953 }
 954
 955 bool DolphinView::hasSelection() const
 956 {
 957     const QAbstractItemView* view = m_viewAccessor.itemView();
 958     return (view != 0) && view->selectionModel()->hasSelection();
 959 }
 960
 961 void DolphinView::observeCreatedItem(const KUrl& url)
 962 {
 963     m_createdItemUrl = url;
 964     connect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
 965             this, SLOT(selectAndScrollToCreatedItem()));
 966 }
 967
 968 void DolphinView::selectAndScrollToCreatedItem()
 969 {
 970     const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_createdItemUrl);
 971     if (dirIndex.isValid()) {
 972         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
 973         m_viewAccessor.itemView()->setCurrentIndex(proxyIndex);
 974     }
 975
 976     disconnect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
 977                this, SLOT(selectAndScrollToCreatedItem()));
 978     m_createdItemUrl = KUrl();
 979 }
 980
 981 void DolphinView::slotRedirection(const KUrl& oldUrl, const KUrl& newUrl)
 982 {
 983     if (oldUrl.equals(url(), KUrl::CompareWithoutTrailingSlash)) {
 984         emit redirection(oldUrl, newUrl);
 985         m_viewModeController->redirectToUrl(newUrl); // #186947
 986     }
 987 }
 988
 989 void DolphinView::restoreContentsPosition()
 990 {
 991     if (!m_restoredContentsPosition.isNull()) {
 992         const int x = m_restoredContentsPosition.x();
 993         const int y = m_restoredContentsPosition.y();
 994         m_restoredContentsPosition = QPoint();
 995
 996         QAbstractItemView* view = m_viewAccessor.itemView();
 997         Q_ASSERT(view != 0);
 998         view->horizontalScrollBar()->setValue(x);
 999         view->verticalScrollBar()->setValue(y);
1000     }
1001 }
1002
1003 void DolphinView::slotUrlChangeRequested(const KUrl& url)
1004 {
1005     m_viewModeController->setUrl(url);
1006     updateWritableState();
1007 }
1008
1009 void DolphinView::showHoverInformation(const KFileItem& item)
1010 {
1011     emit requestItemInfo(item);
1012 }
1013
1014 void DolphinView::clearHoverInformation()
1015 {
1016     emit requestItemInfo(KFileItem());
1017 }
1018
1019 void DolphinView::slotDeleteFileFinished(KJob* job)
1020 {
1021     if (job->error() == 0) {
1022         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1023     } else if (job->error() != KIO::ERR_USER_CANCELED) {
1024         emit errorMessage(job->errorString());
1025     }
1026 }
1027
1028 void DolphinView::slotDirListerStarted(const KUrl& url)
1029 {
1030     // Disable the writestate temporary until it can be determined in a fast way
1031     // in DolphinView::slotDirListerCompleted()
1032     if (m_isFolderWritable) {
1033         m_isFolderWritable = false;
1034         emit writeStateChanged(m_isFolderWritable);
1035     }
1036
1037     emit startedPathLoading(url);
1038 }
1039
1040 void DolphinView::slotDirListerCompleted()
1041 {
1042     if (!m_expanderActive) {
1043         slotLoadingCompleted();
1044     }
1045
1046     if (!m_newFileNames.isEmpty()) {
1047         // select all newly added items created by a paste operation or
1048         // a drag & drop operation, and clear the previous selection
1049         m_viewAccessor.itemView()->clearSelection();
1050         const int rowCount = m_viewAccessor.proxyModel()->rowCount();
1051         QItemSelection selection;
1052         for (int row = 0; row < rowCount; ++row) {
1053             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->index(row, 0);
1054             const QModelIndex dirIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
1055             const KUrl url = m_viewAccessor.dirModel()->itemForIndex(dirIndex).url();
1056             if (m_newFileNames.contains(url.fileName())) {
1057                 selection.merge(QItemSelection(proxyIndex, proxyIndex), QItemSelectionModel::Select);
1058             }
1059         }
1060         m_viewAccessor.itemView()->selectionModel()->select(selection, QItemSelectionModel::Select);
1061
1062         m_newFileNames.clear();
1063     }
1064
1065     updateWritableState();
1066 }
1067
1068 void DolphinView::slotLoadingCompleted()
1069 {
1070     m_expanderActive = false;
1071
1072     if (!m_activeItemUrl.isEmpty()) {
1073         // assure that the current item remains visible
1074         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_activeItemUrl);
1075         if (dirIndex.isValid()) {
1076             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1077             QAbstractItemView* view = m_viewAccessor.itemView();
1078             const bool clearSelection = !hasSelection();
1079             view->setCurrentIndex(proxyIndex);
1080             if (clearSelection) {
1081                 view->clearSelection();
1082             }
1083             m_activeItemUrl.clear();
1084         }
1085     }
1086
1087     if (!m_selectedItems.isEmpty()) {
1088         const KUrl& baseUrl = url();
1089         KUrl url;
1090         QItemSelection newSelection;
1091         foreach(const KFileItem& item, m_selectedItems) {
1092             url = item.url().upUrl();
1093             if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
1094                 QModelIndex index = m_viewAccessor.proxyModel()->mapFromSource(m_viewAccessor.dirModel()->indexForItem(item));
1095                 newSelection.select(index, index);
1096             }
1097         }
1098         m_viewAccessor.itemView()->selectionModel()->select(newSelection,
1099                                                             QItemSelectionModel::ClearAndSelect
1100                                                             | QItemSelectionModel::Current);
1101         m_selectedItems.clear();
1102     }
1103
1104     // Restore the contents position. This has to be done using a Qt::QueuedConnection
1105     // because the view might not be in its final state yet.
1106     QMetaObject::invokeMethod(this, "restoreContentsPosition", Qt::QueuedConnection);
1107
1108     emit finishedPathLoading(url());
1109 }
1110
1111 void DolphinView::slotRefreshItems()
1112 {
1113     if (m_assureVisibleCurrentIndex) {
1114         m_assureVisibleCurrentIndex = false;
1115         m_viewAccessor.itemView()->scrollTo(m_viewAccessor.itemView()->currentIndex());
1116     }
1117 }
1118
1119 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1120 {
1121     if (!url.isValid()) {
1122         const QString location(url.pathOrUrl());
1123         if (location.isEmpty()) {
1124             emit errorMessage(i18nc("@info:status", "The location is empty."));
1125         } else {
1126             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1127         }
1128         return;
1129     }
1130
1131     KDirLister* dirLister = m_viewAccessor.dirLister();
1132     dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
1133 }
1134
1135 void DolphinView::applyViewProperties()
1136 {
1137     const ViewProperties props(rootUrl());
1138
1139     const Mode mode = props.viewMode();
1140     if (m_mode != mode) {
1141         const int oldZoomLevel = m_viewModeController->zoomLevel();
1142
1143         m_mode = mode;
1144         createView();
1145         emit modeChanged();
1146
1147         updateZoomLevel(oldZoomLevel);
1148     }
1149     if (m_viewAccessor.itemView() == 0) {
1150         createView();
1151     }
1152
1153     Q_ASSERT(m_viewAccessor.itemView() != 0);
1154     Q_ASSERT(m_viewAccessor.itemDelegate() != 0);
1155
1156     const bool showHiddenFiles = props.showHiddenFiles();
1157     if (showHiddenFiles != m_viewAccessor.dirLister()->showingDotFiles()) {
1158         m_viewAccessor.dirLister()->setShowingDotFiles(showHiddenFiles);
1159         emit showHiddenFilesChanged();
1160     }
1161
1162     m_storedCategorizedSorting = props.categorizedSorting();
1163     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1164     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
1165         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
1166         emit categorizedSortingChanged();
1167     }
1168
1169     const DolphinView::Sorting sorting = props.sorting();
1170     if (sorting != m_viewAccessor.proxyModel()->sorting()) {
1171         m_viewAccessor.proxyModel()->setSorting(sorting);
1172         emit sortingChanged(sorting);
1173     }
1174
1175     const Qt::SortOrder sortOrder = props.sortOrder();
1176     if (sortOrder != m_viewAccessor.proxyModel()->sortOrder()) {
1177         m_viewAccessor.proxyModel()->setSortOrder(sortOrder);
1178         emit sortOrderChanged(sortOrder);
1179     }
1180
1181     const bool sortFoldersFirst = props.sortFoldersFirst();
1182     if (sortFoldersFirst != m_viewAccessor.proxyModel()->sortFoldersFirst()) {
1183         m_viewAccessor.proxyModel()->setSortFoldersFirst(sortFoldersFirst);
1184         emit sortFoldersFirstChanged(sortFoldersFirst);
1185     }
1186
1187     KFileItemDelegate::InformationList info = props.additionalInfo();
1188     if (info != m_viewAccessor.itemDelegate()->showInformation()) {
1189         m_viewAccessor.itemDelegate()->setShowInformation(info);
1190         emit additionalInfoChanged();
1191     }
1192
1193     const bool showPreview = props.showPreview();
1194     if (showPreview != m_showPreview) {
1195         m_showPreview = showPreview;
1196         const int oldZoomLevel = m_viewModeController->zoomLevel();
1197         emit showPreviewChanged();
1198
1199         // Enabling or disabling the preview might change the icon size of the view.
1200         // As the view does not emit a signal when the icon size has been changed,
1201         // the used zoom level of the controller must be adjusted manually:
1202         updateZoomLevel(oldZoomLevel);
1203     }
1204 }
1205
1206 void DolphinView::createView()
1207 {
1208     deleteView();
1209
1210     Q_ASSERT(m_viewAccessor.itemView() == 0);
1211     Q_ASSERT(m_dolphinViewController->itemView() == 0);
1212     m_viewAccessor.createView(this, m_dolphinViewController, m_viewModeController, m_mode);
1213
1214     QAbstractItemView* view = m_viewAccessor.itemView();
1215     Q_ASSERT(view != 0);
1216     view->installEventFilter(this);
1217     view->viewport()->installEventFilter(this);
1218
1219     m_dolphinViewController->setItemView(view);
1220
1221     const int zoomLevel = ZoomLevelInfo::zoomLevelForIconSize(view->iconSize());
1222     m_viewModeController->setZoomLevel(zoomLevel);
1223
1224     connectViewAccessor();
1225
1226     setFocusProxy(m_viewAccessor.layoutTarget());
1227     m_topLayout->insertWidget(1, m_viewAccessor.layoutTarget());
1228 }
1229
1230 void DolphinView::deleteView()
1231 {
1232     QAbstractItemView* view = m_viewAccessor.itemView();
1233     Q_ASSERT((m_dolphinViewController->itemView() == 0) || (m_dolphinViewController->itemView() == view));
1234     m_dolphinViewController->setItemView(0);
1235
1236     if (view != 0) {
1237         disconnectViewAccessor();
1238
1239         if (hasFocus()) {
1240             // It's important to set the keyboard focus to the parent
1241             // before deleting the view: Otherwise when having a split
1242             // view the other view will get the focus and will request
1243             // an activation (see DolphinView::eventFilter()).
1244             setFocusProxy(0);
1245             setFocus();
1246         }
1247
1248         m_viewModeController->disconnect(view);
1249
1250         m_viewAccessor.deleteView();
1251     }
1252 }
1253
1254 void DolphinView::pasteToUrl(const KUrl& url)
1255 {
1256     addNewFileNames(QApplication::clipboard()->mimeData());
1257     KonqOperations::doPaste(this, url);
1258 }
1259
1260 void DolphinView::updateZoomLevel(int oldZoomLevel)
1261 {
1262     const int newZoomLevel = ZoomLevelInfo::zoomLevelForIconSize(m_viewAccessor.itemView()->iconSize());
1263     if (oldZoomLevel != newZoomLevel) {
1264         m_viewModeController->setZoomLevel(newZoomLevel);
1265         emit zoomLevelChanged(newZoomLevel);
1266     }
1267 }
1268
1269 KUrl::List DolphinView::simplifiedSelectedUrls() const
1270 {
1271     KUrl::List urls;
1272
1273     const KFileItemList items = selectedItems();
1274     foreach (const KFileItem &item, items) {
1275         urls.append(item.url());
1276     }
1277
1278
1279     if (itemsExpandable()) {
1280         urls = KDirModel::simplifiedUrlList(urls);
1281     }
1282
1283     return urls;
1284 }
1285
1286 QMimeData* DolphinView::selectionMimeData() const
1287 {
1288     const QAbstractItemView* view = m_viewAccessor.itemView();
1289     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
1290     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
1291     return m_viewAccessor.dirModel()->mimeData(selection.indexes());
1292 }
1293
1294 void DolphinView::addNewFileNames(const QMimeData* mimeData)
1295 {
1296     const KUrl::List urls = KUrl::List::fromMimeData(mimeData);
1297     foreach (const KUrl& url, urls) {
1298         m_newFileNames.insert(url.fileName());
1299     }
1300 }
1301
1302 QItemSelection DolphinView::childrenMatchingPattern(const QModelIndex& parent, const QRegExp& pattern) const
1303 {
1304     QItemSelection matchingIndexes;
1305     const DolphinSortFilterProxyModel* proxyModel = m_viewAccessor.proxyModel();
1306     const DolphinModel* dolphinModel = m_viewAccessor.dirModel();
1307
1308     const int rowCount = proxyModel->rowCount(parent);
1309
1310     for (int row = 0; row < rowCount; ++row) {
1311         QModelIndex index = proxyModel->index(row, 0, parent);
1312         QModelIndex sourceIndex = proxyModel->mapToSource(index);
1313
1314         if (sourceIndex.isValid() && pattern.exactMatch(dolphinModel->data(sourceIndex).toString())) {
1315             matchingIndexes += QItemSelectionRange(index);
1316         }
1317
1318         if (proxyModel->hasChildren(index)) {
1319             matchingIndexes += childrenMatchingPattern(index, pattern);
1320         }
1321     }
1322
1323     return matchingIndexes;
1324 }
1325
1326 void DolphinView::connectViewAccessor()
1327 {
1328     KDirLister* dirLister = m_viewAccessor.dirLister();
1329     connect(dirLister, SIGNAL(redirection(KUrl,KUrl)),
1330             this, SLOT(slotRedirection(KUrl,KUrl)));
1331     connect(dirLister, SIGNAL(started(KUrl)),
1332             this, SLOT(slotDirListerStarted(KUrl)));
1333     connect(dirLister, SIGNAL(completed()),
1334             this, SLOT(slotDirListerCompleted()));
1335     connect(dirLister, SIGNAL(refreshItems(const QList<QPair<KFileItem,KFileItem>>&)),
1336             this, SLOT(slotRefreshItems()));
1337
1338     QAbstractItemView* view = m_viewAccessor.itemView();
1339     connect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
1340             this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
1341 }
1342
1343 void DolphinView::disconnectViewAccessor()
1344 {
1345     KDirLister* dirLister = m_viewAccessor.dirLister();
1346     disconnect(dirLister, SIGNAL(redirection(KUrl,KUrl)),
1347                this, SLOT(slotRedirection(KUrl,KUrl)));
1348     disconnect(dirLister, SIGNAL(started(KUrl)),
1349                this, SLOT(slotDirListerStarted(KUrl)));
1350     disconnect(dirLister, SIGNAL(completed()),
1351                this, SLOT(slotDirListerCompleted()));
1352     disconnect(dirLister, SIGNAL(refreshItems(const QList<QPair<KFileItem,KFileItem>>&)),
1353                this, SLOT(slotRefreshItems()));
1354
1355     QAbstractItemView* view = m_viewAccessor.itemView();
1356     disconnect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
1357                this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
1358 }
1359
1360 void DolphinView::updateWritableState()
1361 {
1362     const bool wasFolderWritable = m_isFolderWritable;
1363     m_isFolderWritable = true;
1364
1365     const KFileItem item = m_viewAccessor.dirLister()->rootItem();
1366     if (!item.isNull()) {
1367         KFileItemListProperties capabilities(KFileItemList() << item);
1368         m_isFolderWritable = capabilities.supportsWriting();
1369     }
1370     if (m_isFolderWritable != wasFolderWritable) {
1371         emit writeStateChanged(m_isFolderWritable);
1372     }
1373 }
1374
1375 DolphinView::ViewAccessor::ViewAccessor(DolphinSortFilterProxyModel* proxyModel) :
1376     m_rootUrl(),
1377     m_iconsView(0),
1378     m_detailsView(0),
1379     m_columnsContainer(0),
1380     m_proxyModel(proxyModel),
1381     m_dragSource(0)
1382 {
1383 }
1384
1385 DolphinView::ViewAccessor::~ViewAccessor()
1386 {
1387     delete m_dragSource;
1388     m_dragSource = 0;
1389 }
1390
1391 void DolphinView::ViewAccessor::createView(QWidget* parent,
1392                                            DolphinViewController* dolphinViewController,
1393                                            const ViewModeController* viewModeController,
1394                                            Mode mode)
1395 {
1396     Q_ASSERT(itemView() == 0);
1397
1398     switch (mode) {
1399     case IconsView:
1400         m_iconsView = new DolphinIconsView(parent,
1401                                            dolphinViewController,
1402                                            viewModeController,
1403                                            m_proxyModel);
1404         break;
1405
1406     case DetailsView:
1407         m_detailsView = new DolphinDetailsView(parent,
1408                                                dolphinViewController,
1409                                                viewModeController,
1410                                                m_proxyModel);
1411         break;
1412
1413     case ColumnView:
1414         m_columnsContainer = new DolphinColumnViewContainer(parent,
1415                                                             dolphinViewController,
1416                                                             viewModeController);
1417         if (!m_rootUrl.isEmpty() && m_rootUrl.isParentOf(viewModeController->url())) {
1418             // The column-view must show several columns starting with m_rootUrl as
1419             // first column and viewModeController->url() as last column.
1420             m_columnsContainer->showColumn(m_rootUrl);
1421             m_columnsContainer->showColumn(viewModeController->url());
1422         }
1423         break;
1424
1425     default:
1426         Q_ASSERT(false);
1427     }
1428 }
1429
1430 void DolphinView::ViewAccessor::deleteView()
1431 {
1432     if (m_columnsContainer != 0) {
1433         m_columnsContainer->close();
1434         m_columnsContainer->disconnect();
1435         m_columnsContainer->deleteLater();
1436         m_columnsContainer = 0;
1437     } else {
1438         QAbstractItemView* view = itemView();
1439         if (view != 0) {
1440             view->close();
1441             view->disconnect();
1442
1443             if (DragAndDropHelper::instance().isDragSource(view)) {
1444                 // The view is a drag source (the feature "Open folders
1445                 // during drag operations" is used). Deleting the view
1446                 // during an ongoing drag operation is not allowed, so
1447                 // this will postponed.
1448                 if (m_dragSource != 0) {
1449                     // the old stored view is obviously not the drag source anymore
1450                     m_dragSource->deleteLater();
1451                     m_dragSource = 0;
1452                 }
1453                 view->hide();
1454                 m_dragSource = view;
1455             } else {
1456                 view->deleteLater();
1457                 view = 0;
1458             }
1459         }
1460
1461         m_iconsView = 0;
1462         m_detailsView = 0;
1463     }
1464 }
1465
1466 void DolphinView::ViewAccessor::prepareUrlChange(const KUrl& url)
1467 {
1468     if (m_columnsContainer != 0) {
1469         m_columnsContainer->showColumn(url);
1470     }
1471 }
1472
1473 QAbstractItemView* DolphinView::ViewAccessor::itemView() const
1474 {
1475     if (m_iconsView != 0) {
1476         return m_iconsView;
1477     }
1478
1479     if (m_detailsView != 0) {
1480         return m_detailsView;
1481     }
1482
1483     if (m_columnsContainer != 0) {
1484         return m_columnsContainer->activeColumn();
1485     }
1486
1487     return 0;
1488 }
1489
1490 KFileItemDelegate* DolphinView::ViewAccessor::itemDelegate() const
1491 {
1492     return static_cast<KFileItemDelegate*>(itemView()->itemDelegate());
1493 }
1494
1495 QWidget* DolphinView::ViewAccessor::layoutTarget() const
1496 {
1497     if (m_columnsContainer != 0) {
1498         return m_columnsContainer;
1499     }
1500     return itemView();
1501 }
1502
1503 void DolphinView::ViewAccessor::setRootUrl(const KUrl& rootUrl)
1504 {
1505     m_rootUrl = rootUrl;
1506 }
1507
1508 KUrl DolphinView::ViewAccessor::rootUrl() const
1509 {
1510     return (m_columnsContainer != 0) ? m_columnsContainer->rootUrl() : m_rootUrl;
1511 }
1512
1513 bool DolphinView::ViewAccessor::supportsCategorizedSorting() const
1514 {
1515     return m_iconsView != 0;
1516 }
1517
1518 bool DolphinView::ViewAccessor::itemsExpandable() const
1519 {
1520     return (m_detailsView != 0) && m_detailsView->itemsExpandable();
1521 }
1522
1523 QSet<KUrl> DolphinView::ViewAccessor::expandedUrls() const
1524 {
1525     if (m_detailsView != 0) {
1526         return m_detailsView->expandedUrls();
1527     }
1528
1529     return QSet<KUrl>();
1530 }
1531
1532 const DolphinDetailsViewExpander* DolphinView::ViewAccessor::setExpandedUrls(const QSet<KUrl>& urlsToExpand)
1533 {
1534     if ((m_detailsView != 0) && m_detailsView->itemsExpandable() && !urlsToExpand.isEmpty()) {
1535         // Check if another expander is already active and stop it if necessary.
1536         if(!m_detailsViewExpander.isNull()) {
1537             m_detailsViewExpander->stop();
1538         }
1539
1540         m_detailsViewExpander = new DolphinDetailsViewExpander(m_detailsView, urlsToExpand);
1541         return m_detailsViewExpander;
1542     }
1543     else {
1544         return 0;
1545     }
1546 }
1547
1548 bool DolphinView::ViewAccessor::reloadOnAdditionalInfoChange() const
1549 {
1550     // the details view requires no reloading of the directory, as it maps
1551     // the file item delegate info to its columns internally
1552     return m_detailsView != 0;
1553 }
1554
1555 DolphinModel* DolphinView::ViewAccessor::dirModel() const
1556 {
1557     return static_cast<DolphinModel*>(proxyModel()->sourceModel());
1558 }
1559
1560 DolphinSortFilterProxyModel* DolphinView::ViewAccessor::proxyModel() const
1561 {
1562     if (m_columnsContainer != 0) {
1563         return static_cast<DolphinSortFilterProxyModel*>(m_columnsContainer->activeColumn()->model());
1564     }
1565     return m_proxyModel;
1566 }
1567
1568 KDirLister* DolphinView::ViewAccessor::dirLister() const
1569 {
1570     return dirModel()->dirLister();
1571 }
1572
1573 #include "dolphinview.moc"