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