src/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 <kstringhandler.h>
  49 #include <ktoggleaction.h>
  50 #include <kurl.h>
  51
  52 #include "dolphinmodel.h"
  53 #include "dolphincolumnviewcontainer.h"
  54 #include "dolphincontroller.h"
  55 #include "dolphindetailsview.h"
  56 #include "dolphinfileitemdelegate.h"
  57 #include "dolphinnewmenuobserver.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 "viewproperties.h"
  66 #include "zoomlevelinfo.h"
  67 #include "dolphindetailsviewexpander.h"
  68
  69 /**
  70  * Helper function for sorting items with qSort() in
  71  * DolphinView::renameSelectedItems().
  72  */
  73 bool lessThan(const KFileItem& item1, const KFileItem& item2)
  74 {
  75     return KStringHandler::naturalCompare(item1.name(), item2.name()) < 0;
  76 }
  77
  78 DolphinView::DolphinView(QWidget* parent,
  79                          const KUrl& url,
  80                          DolphinSortFilterProxyModel* proxyModel) :
  81     QWidget(parent),
  82     m_active(true),
  83     m_showPreview(false),
  84     m_loadingDirectory(false),
  85     m_storedCategorizedSorting(false),
  86     m_tabsForFiles(false),
  87     m_isContextMenuOpen(false),
  88     m_ignoreViewProperties(false),
  89     m_assureVisibleCurrentIndex(false),
  90     m_mode(DolphinView::IconsView),
  91     m_topLayout(0),
  92     m_controller(0),
  93     m_viewAccessor(proxyModel),
  94     m_selectionModel(0),
  95     m_selectionChangedTimer(0),
  96     m_rootUrl(),
  97     m_activeItemUrl(),
  98     m_restoredContentsPosition(),
  99     m_createdItemUrl(),
 100     m_selectedItems(),
 101     m_newFileNames()
 102 {
 103     m_topLayout = new QVBoxLayout(this);
 104     m_topLayout->setSpacing(0);
 105     m_topLayout->setMargin(0);
 106
 107     m_controller = new DolphinController(this);
 108     m_controller->setUrl(url);
 109
 110     connect(m_controller, SIGNAL(urlChanged(const KUrl&)),
 111             this, SIGNAL(urlChanged(const KUrl&)));
 112     connect(m_controller, SIGNAL(requestUrlChange(const KUrl&)),
 113             this, SLOT(slotRequestUrlChange(const KUrl&)));
 114
 115     connect(m_controller, SIGNAL(requestContextMenu(const QPoint&, const QList<QAction*>&)),
 116             this, SLOT(openContextMenu(const QPoint&, const QList<QAction*>&)));
 117     connect(m_controller, SIGNAL(urlsDropped(const KFileItem&, const KUrl&, QDropEvent*)),
 118             this, SLOT(dropUrls(const KFileItem&, const KUrl&, QDropEvent*)));
 119     connect(m_controller, SIGNAL(sortingChanged(DolphinView::Sorting)),
 120             this, SLOT(updateSorting(DolphinView::Sorting)));
 121     connect(m_controller, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 122             this, SLOT(updateSortOrder(Qt::SortOrder)));
 123     connect(m_controller, SIGNAL(sortFoldersFirstChanged(bool)),
 124             this, SLOT(updateSortFoldersFirst(bool)));
 125     connect(m_controller, SIGNAL(additionalInfoChanged(const KFileItemDelegate::InformationList&)),
 126             this, SLOT(updateAdditionalInfo(const KFileItemDelegate::InformationList&)));
 127     connect(m_controller, SIGNAL(itemTriggered(const KFileItem&)),
 128             this, SLOT(triggerItem(const KFileItem&)));
 129     connect(m_controller, SIGNAL(tabRequested(const KUrl&)),
 130             this, SIGNAL(tabRequested(const KUrl&)));
 131     connect(m_controller, SIGNAL(activated()),
 132             this, SLOT(activate()));
 133     connect(m_controller, SIGNAL(itemEntered(const KFileItem&)),
 134             this, SLOT(showHoverInformation(const KFileItem&)));
 135     connect(m_controller, SIGNAL(viewportEntered()),
 136             this, SLOT(clearHoverInformation()));
 137
 138     KDirLister* dirLister = m_viewAccessor.dirLister();
 139     connect(dirLister, SIGNAL(redirection(KUrl,KUrl)),
 140             this, SLOT(slotRedirection(KUrl,KUrl)));
 141     connect(dirLister, SIGNAL(completed()),
 142             this, SLOT(slotDirListerCompleted()));
 143     connect(dirLister, SIGNAL(refreshItems(const QList<QPair<KFileItem,KFileItem>>&)),
 144             this, SLOT(slotRefreshItems()));
 145
 146     // When a new item has been created by the "Create New..." menu, the item should
 147     // get selected and it must be assured that the item will get visible. As the
 148     // creation is done asynchronously, several signals must be checked:
 149     connect(&DolphinNewMenuObserver::instance(), SIGNAL(itemCreated(const KUrl&)),
 150             this, SLOT(observeCreatedItem(const KUrl&)));
 151
 152     m_selectionChangedTimer = new QTimer(this);
 153     m_selectionChangedTimer->setSingleShot(true);
 154     m_selectionChangedTimer->setInterval(300);
 155     connect(m_selectionChangedTimer, SIGNAL(timeout()),
 156             this, SLOT(emitSelectionChangedSignal()));
 157
 158     applyViewProperties();
 159     m_topLayout->addWidget(m_viewAccessor.itemView());
 160 }
 161
 162 DolphinView::~DolphinView()
 163 {
 164 }
 165
 166 const KUrl& DolphinView::url() const
 167 {
 168     return m_controller->url();
 169 }
 170
 171 KUrl DolphinView::rootUrl() const
 172 {
 173     const KUrl viewUrl = url();
 174     const KUrl root = m_viewAccessor.rootUrl();
 175     if (root.isEmpty() || !root.isParentOf(viewUrl)) {
 176         return viewUrl;
 177     }
 178     return root;
 179 }
 180
 181 void DolphinView::setActive(bool active)
 182 {
 183     if (active == m_active) {
 184         return;
 185     }
 186
 187     m_active = active;
 188
 189     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 190     if (active) {
 191         emitSelectionChangedSignal();
 192     } else {
 193         color.setAlpha(150);
 194     }
 195
 196     QWidget* viewport = m_viewAccessor.itemView()->viewport();
 197     QPalette palette;
 198     palette.setColor(viewport->backgroundRole(), color);
 199     viewport->setPalette(palette);
 200
 201     update();
 202
 203     if (active) {
 204         m_viewAccessor.itemView()->setFocus();
 205         emit activated();
 206     }
 207
 208     m_controller->indicateActivationChange(active);
 209 }
 210
 211 bool DolphinView::isActive() const
 212 {
 213     return m_active;
 214 }
 215
 216 void DolphinView::setMode(Mode mode)
 217 {
 218     if (mode == m_mode) {
 219         return; // the wished mode is already set
 220     }
 221
 222     const int oldZoomLevel = m_controller->zoomLevel();
 223     m_mode = mode;
 224
 225     deleteView();
 226
 227     const KUrl viewPropsUrl = rootUrl();
 228     ViewProperties props(viewPropsUrl);
 229     props.setViewMode(m_mode);
 230     createView();
 231
 232     // the file item delegate has been recreated, apply the current
 233     // additional information manually
 234     const KFileItemDelegate::InformationList infoList = props.additionalInfo();
 235     m_viewAccessor.itemDelegate()->setShowInformation(infoList);
 236     emit additionalInfoChanged();
 237
 238     // Not all view modes support categorized sorting. Adjust the sorting model
 239     // if changing the view mode results in a change of the categorized sorting
 240     // capabilities.
 241     m_storedCategorizedSorting = props.categorizedSorting();
 242     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 243     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
 244         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 245         emit categorizedSortingChanged();
 246     }
 247
 248     emit modeChanged();
 249
 250     updateZoomLevel(oldZoomLevel);
 251     if (m_showPreview) {
 252         loadDirectory(viewPropsUrl);
 253     }
 254 }
 255
 256 DolphinView::Mode DolphinView::mode() const
 257 {
 258     return m_mode;
 259 }
 260
 261 bool DolphinView::showPreview() const
 262 {
 263     return m_showPreview;
 264 }
 265
 266 bool DolphinView::showHiddenFiles() const
 267 {
 268     return m_viewAccessor.dirLister()->showingDotFiles();
 269 }
 270
 271 bool DolphinView::categorizedSorting() const
 272 {
 273     // If all view modes would support categorized sorting, returning
 274     // m_viewAccessor.proxyModel()->isCategorizedModel() would be the way to go. As
 275     // currently only the icons view supports caterized sorting, we remember
 276     // the stored view properties state in m_storedCategorizedSorting and
 277     // return this state. The application takes care to disable the corresponding
 278     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 279     // that this setting is not applied to the current view mode.
 280     return m_storedCategorizedSorting;
 281 }
 282
 283 bool DolphinView::supportsCategorizedSorting() const
 284 {
 285     return m_viewAccessor.supportsCategorizedSorting();
 286 }
 287
 288 bool DolphinView::hasSelection() const
 289 {
 290     const QAbstractItemView* view = m_viewAccessor.itemView();
 291     return view && view->selectionModel()->hasSelection();
 292 }
 293
 294 KFileItemList DolphinView::selectedItems() const
 295 {
 296     const QAbstractItemView* view = m_viewAccessor.itemView();
 297
 298     // Our view has a selection, we will map them back to the DolphinModel
 299     // and then fill the KFileItemList.
 300     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 301
 302     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
 303     KFileItemList itemList;
 304
 305     const QModelIndexList indexList = selection.indexes();
 306     foreach (const QModelIndex &index, indexList) {
 307         KFileItem item = m_viewAccessor.dirModel()->itemForIndex(index);
 308         if (!item.isNull()) {
 309             itemList.append(item);
 310         }
 311     }
 312
 313     return itemList;
 314 }
 315
 316 KUrl::List DolphinView::selectedUrls() const
 317 {
 318     KUrl::List urls;
 319     const KFileItemList list = selectedItems();
 320     foreach (const KFileItem &item, list) {
 321         urls.append(item.url());
 322     }
 323     return urls;
 324 }
 325
 326 int DolphinView::selectedItemsCount() const
 327 {
 328     return m_viewAccessor.itemView()->selectionModel()->selectedIndexes().count();
 329 }
 330
 331 QItemSelectionModel* DolphinView::selectionModel() const
 332 {
 333     return m_viewAccessor.itemView()->selectionModel();
 334 }
 335
 336 void DolphinView::setContentsPosition(int x, int y)
 337 {
 338     QAbstractItemView* view = m_viewAccessor.itemView();
 339     Q_ASSERT(view != 0);
 340     view->horizontalScrollBar()->setValue(x);
 341     view->verticalScrollBar()->setValue(y);
 342
 343     m_loadingDirectory = false;
 344 }
 345
 346 void DolphinView::setRestoredContentsPosition(const QPoint& pos)
 347 {
 348     // TODO: This function is called by DolphinViewContainer.
 349     // If it makes use of DolphinView::restoreState(...) to restore the
 350     // view state in KDE 4.5, this function can be removed.
 351     m_restoredContentsPosition = pos;
 352 }
 353
 354 QPoint DolphinView::contentsPosition() const
 355 {
 356     // TODO: If DolphinViewContainer uses DolphinView::saveState(...) to save the
 357     // view state in KDE 4.5, this code can be moved to DolphinView::saveState.
 358     QAbstractItemView* view = m_viewAccessor.itemView();
 359     Q_ASSERT(view != 0);
 360     const int x = view->horizontalScrollBar()->value();
 361     const int y = view->verticalScrollBar()->value();
 362     return QPoint(x, y);
 363 }
 364
 365 void DolphinView::setZoomLevel(int level)
 366 {
 367     if (level < ZoomLevelInfo::minimumLevel()) {
 368         level = ZoomLevelInfo::minimumLevel();
 369     } else if (level > ZoomLevelInfo::maximumLevel()) {
 370         level = ZoomLevelInfo::maximumLevel();
 371     }
 372
 373     if (level != zoomLevel()) {
 374         m_controller->setZoomLevel(level);
 375         emit zoomLevelChanged(level);
 376     }
 377 }
 378
 379 int DolphinView::zoomLevel() const
 380 {
 381     return m_controller->zoomLevel();
 382 }
 383
 384 void DolphinView::setSorting(Sorting sorting)
 385 {
 386     if (sorting != this->sorting()) {
 387         updateSorting(sorting);
 388     }
 389 }
 390
 391 DolphinView::Sorting DolphinView::sorting() const
 392 {
 393     return m_viewAccessor.proxyModel()->sorting();
 394 }
 395
 396 void DolphinView::setSortOrder(Qt::SortOrder order)
 397 {
 398     if (sortOrder() != order) {
 399         updateSortOrder(order);
 400     }
 401 }
 402
 403 Qt::SortOrder DolphinView::sortOrder() const
 404 {
 405     return m_viewAccessor.proxyModel()->sortOrder();
 406 }
 407
 408 void DolphinView::setSortFoldersFirst(bool foldersFirst)
 409 {
 410     if (sortFoldersFirst() != foldersFirst) {
 411         updateSortFoldersFirst(foldersFirst);
 412     }
 413 }
 414
 415 bool DolphinView::sortFoldersFirst() const
 416 {
 417     return m_viewAccessor.proxyModel()->sortFoldersFirst();
 418 }
 419
 420 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 421 {
 422     const KUrl viewPropsUrl = rootUrl();
 423     ViewProperties props(viewPropsUrl);
 424     props.setAdditionalInfo(info);
 425     m_viewAccessor.itemDelegate()->setShowInformation(info);
 426
 427     emit additionalInfoChanged();
 428
 429     if (m_viewAccessor.reloadOnAdditionalInfoChange()) {
 430         loadDirectory(viewPropsUrl);
 431     }
 432 }
 433
 434 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 435 {
 436     return m_viewAccessor.itemDelegate()->showInformation();
 437 }
 438
 439 void DolphinView::reload()
 440 {
 441     QByteArray viewState;
 442     QDataStream saveStream(&viewState, QIODevice::WriteOnly);
 443     saveState(saveStream);
 444     m_selectedItems = selectedItems();
 445
 446     setUrl(url());
 447     loadDirectory(url(), true);
 448
 449     QDataStream restoreStream(viewState);
 450     restoreState(restoreStream);
 451 }
 452
 453 void DolphinView::refresh()
 454 {
 455     m_ignoreViewProperties = false;
 456
 457     const bool oldActivationState = m_active;
 458     const int oldZoomLevel = m_controller->zoomLevel();
 459     m_active = true;
 460
 461     createView();
 462     applyViewProperties();
 463     reload();
 464
 465     setActive(oldActivationState);
 466     updateZoomLevel(oldZoomLevel);
 467 }
 468
 469 void DolphinView::updateView(const KUrl& url, const KUrl& rootUrl)
 470 {
 471     Q_UNUSED(rootUrl); // TODO: remove after columnview-cleanup has been finished
 472
 473     if (m_controller->url() == url) {
 474         return;
 475     }
 476
 477     m_controller->setUrl(url); // emits urlChanged, which we forward
 478     m_viewAccessor.prepareUrlChange(url);
 479     applyViewProperties();
 480     loadDirectory(url);
 481
 482     // When changing the URL there is no need to keep the version
 483     // data of the previous URL.
 484     m_viewAccessor.dirModel()->clearVersionData();
 485
 486     emit startedPathLoading(url);
 487 }
 488
 489 void DolphinView::setNameFilter(const QString& nameFilter)
 490 {
 491     m_controller->setNameFilter(nameFilter);
 492 }
 493
 494 void DolphinView::calculateItemCount(int& fileCount,
 495                                      int& folderCount,
 496                                      KIO::filesize_t& totalFileSize) const
 497 {
 498     foreach (const KFileItem& item, m_viewAccessor.dirLister()->items()) {
 499         if (item.isDir()) {
 500             ++folderCount;
 501         } else {
 502             ++fileCount;
 503             totalFileSize += item.size();
 504         }
 505     }
 506 }
 507
 508 QString DolphinView::statusBarText() const
 509 {
 510     QString text;
 511     int folderCount = 0;
 512     int fileCount = 0;
 513     KIO::filesize_t totalFileSize = 0;
 514
 515     if (hasSelection()) {
 516         // give a summary of the status of the selected files
 517         const KFileItemList list = selectedItems();
 518         if (list.isEmpty()) {
 519             // when an item is triggered, it is temporary selected but selectedItems()
 520             // will return an empty list
 521             return text;
 522         }
 523
 524         KFileItemList::const_iterator it = list.begin();
 525         const KFileItemList::const_iterator end = list.end();
 526         while (it != end) {
 527             const KFileItem& item = *it;
 528             if (item.isDir()) {
 529                 ++folderCount;
 530             } else {
 531                 ++fileCount;
 532                 totalFileSize += item.size();
 533             }
 534             ++it;
 535         }
 536
 537         if (folderCount + fileCount == 1) {
 538             // if only one item is selected, show the filename
 539             const QString name = list.first().name();
 540             text = (folderCount == 1) ? i18nc("@info:status", "<filename>%1</filename> selected", name) :
 541                                         i18nc("@info:status", "<filename>%1</filename> selected (%2)",
 542                                               name, KIO::convertSize(totalFileSize));
 543         } else {
 544             // at least 2 items are selected
 545             const QString foldersText = i18ncp("@info:status", "1 Folder selected", "%1 Folders selected", folderCount);
 546             const QString filesText = i18ncp("@info:status", "1 File selected", "%1 Files selected", fileCount);
 547             if ((folderCount > 0) && (fileCount > 0)) {
 548                 text = i18nc("@info:status folders, files (size)", "%1, %2 (%3)",
 549                              foldersText, filesText, KIO::convertSize(totalFileSize));
 550             } else if (fileCount > 0) {
 551                 text = i18nc("@info:status files (size)", "%1 (%2)", filesText, KIO::convertSize(totalFileSize));
 552             } else {
 553                 Q_ASSERT(folderCount > 0);
 554                 text = foldersText;
 555             }
 556         }
 557     } else {
 558         calculateItemCount(fileCount, folderCount, totalFileSize);
 559         text = KIO::itemsSummaryString(fileCount + folderCount,
 560                                        fileCount, folderCount,
 561                                        totalFileSize, true);
 562     }
 563
 564     return text;
 565 }
 566
 567 QList<QAction*> DolphinView::versionControlActions(const KFileItemList& items) const
 568 {
 569     return m_controller->versionControlActions(items);
 570 }
 571
 572 void DolphinView::setUrl(const KUrl& url)
 573 {
 574     m_newFileNames.clear();
 575     updateView(url, KUrl());
 576 }
 577
 578 void DolphinView::selectAll()
 579 {
 580     QAbstractItemView* view = m_viewAccessor.itemView();
 581     // TODO: there seems to be a bug in QAbstractItemView::selectAll(); if
 582     // the Ctrl-key is pressed (e. g. for Ctrl+A), selectAll() inverts the
 583     // selection instead of selecting all items. This is bypassed for KDE 4.0
 584     // by invoking clearSelection() first.
 585     view->clearSelection();
 586     view->selectAll();
 587 }
 588
 589 void DolphinView::invertSelection()
 590 {
 591     QItemSelectionModel* selectionModel = m_viewAccessor.itemView()->selectionModel();
 592     const QAbstractItemModel* itemModel = selectionModel->model();
 593
 594     const QModelIndex topLeft = itemModel->index(0, 0);
 595     const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 596                                                      itemModel->columnCount() - 1);
 597
 598     const QItemSelection selection(topLeft, bottomRight);
 599     selectionModel->select(selection, QItemSelectionModel::Toggle);
 600 }
 601
 602 void DolphinView::clearSelection()
 603 {
 604     m_viewAccessor.itemView()->clearSelection();
 605 }
 606
 607 void DolphinView::changeSelection(const KFileItemList& selection)
 608 {
 609     clearSelection();
 610     if (selection.isEmpty()) {
 611         return;
 612     }
 613     const KUrl& baseUrl = url();
 614     KUrl url;
 615     QItemSelection newSelection;
 616     foreach(const KFileItem& item, selection) {
 617         url = item.url().upUrl();
 618         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 619             QModelIndex index = m_viewAccessor.proxyModel()->mapFromSource(m_viewAccessor.dirModel()->indexForItem(item));
 620             newSelection.select(index, index);
 621         }
 622     }
 623     m_viewAccessor.itemView()->selectionModel()->select(newSelection,
 624                                          QItemSelectionModel::ClearAndSelect
 625                                          | QItemSelectionModel::Current);
 626 }
 627
 628 void DolphinView::renameSelectedItems()
 629 {
 630     KFileItemList items = selectedItems();
 631     const int itemCount = items.count();
 632     if (itemCount < 1) {
 633         return;
 634     }
 635
 636     if (itemCount > 1) {
 637         // More than one item has been selected for renaming. Open
 638         // a rename dialog and rename all items afterwards.
 639         QPointer<RenameDialog> dialog = new RenameDialog(this, items);
 640         if (dialog->exec() == QDialog::Rejected) {
 641             delete dialog;
 642             return;
 643         }
 644
 645         const QString newName = dialog->newName();
 646         if (newName.isEmpty()) {
 647             emit errorMessage(dialog->errorString());
 648             delete dialog;
 649             return;
 650         }
 651         delete dialog;
 652
 653         // the selection would be invalid after renaming the items, so just clear
 654         // it before
 655         clearSelection();
 656
 657         // TODO: check how this can be integrated into KIO::FileUndoManager/KonqOperations
 658         // as one operation instead of n rename operations like it is done now...
 659         Q_ASSERT(newName.contains('#'));
 660
 661         // currently the items are sorted by the selection order, resort
 662         // them by the file name
 663         qSort(items.begin(), items.end(), lessThan);
 664
 665         // iterate through all selected items and rename them...
 666         int index = 1;
 667         foreach (const KFileItem& item, items) {
 668             const KUrl& oldUrl = item.url();
 669             QString number;
 670             number.setNum(index++);
 671
 672             QString name = newName;
 673             name.replace('#', number);
 674
 675             if (oldUrl.fileName() != name) {
 676                 KUrl newUrl = oldUrl;
 677                 newUrl.setFileName(name);
 678                 KonqOperations::rename(this, oldUrl, newUrl);
 679             }
 680         }
 681     } else if (DolphinSettings::instance().generalSettings()->renameInline()) {
 682         Q_ASSERT(itemCount == 1);
 683         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForItem(items.first());
 684         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
 685         m_viewAccessor.itemView()->edit(proxyIndex);
 686     } else {
 687         Q_ASSERT(itemCount == 1);
 688
 689         QPointer<RenameDialog> dialog = new RenameDialog(this, items);
 690         if (dialog->exec() == QDialog::Rejected) {
 691             delete dialog;
 692             return;
 693         }
 694
 695         const QString newName = dialog->newName();
 696         if (newName.isEmpty()) {
 697             emit errorMessage(dialog->errorString());
 698             delete dialog;
 699             return;
 700         }
 701         delete dialog;
 702
 703         const KUrl& oldUrl = items.first().url();
 704         KUrl newUrl = oldUrl;
 705         newUrl.setFileName(newName);
 706         KonqOperations::rename(this, oldUrl, newUrl);
 707     }
 708
 709     // assure that the current index remains visible when KDirLister
 710     // will notify the view about changed items
 711     m_assureVisibleCurrentIndex = true;
 712 }
 713
 714 void DolphinView::trashSelectedItems()
 715 {
 716     const KUrl::List list = simplifiedSelectedUrls();
 717     KonqOperations::del(this, KonqOperations::TRASH, list);
 718 }
 719
 720 void DolphinView::deleteSelectedItems()
 721 {
 722     const KUrl::List list = simplifiedSelectedUrls();
 723     const bool del = KonqOperations::askDeleteConfirmation(list,
 724                      KonqOperations::DEL,
 725                      KonqOperations::DEFAULT_CONFIRMATION,
 726                      this);
 727
 728     if (del) {
 729         KIO::Job* job = KIO::del(list);
 730         connect(job, SIGNAL(result(KJob*)),
 731                 this, SLOT(slotDeleteFileFinished(KJob*)));
 732     }
 733 }
 734
 735 void DolphinView::cutSelectedItems()
 736 {
 737     QMimeData* mimeData = selectionMimeData();
 738     KonqMimeData::addIsCutSelection(mimeData, true);
 739     QApplication::clipboard()->setMimeData(mimeData);
 740 }
 741
 742 void DolphinView::copySelectedItems()
 743 {
 744     QMimeData* mimeData = selectionMimeData();
 745     QApplication::clipboard()->setMimeData(mimeData);
 746 }
 747
 748 void DolphinView::paste()
 749 {
 750     pasteToUrl(url());
 751 }
 752
 753 void DolphinView::pasteIntoFolder()
 754 {
 755     const KFileItemList items = selectedItems();
 756     if ((items.count() == 1) && items.first().isDir()) {
 757         pasteToUrl(items.first().url());
 758     }
 759 }
 760
 761 void DolphinView::setShowPreview(bool show)
 762 {
 763     if (m_showPreview == show) {
 764         return;
 765     }
 766
 767     const KUrl viewPropsUrl = rootUrl();
 768     ViewProperties props(viewPropsUrl);
 769     props.setShowPreview(show);
 770
 771     m_showPreview = show;
 772     const int oldZoomLevel = m_controller->zoomLevel();
 773     emit showPreviewChanged();
 774
 775     // Enabling or disabling the preview might change the icon size of the view.
 776     // As the view does not emit a signal when the icon size has been changed,
 777     // the used zoom level of the controller must be adjusted manually:
 778     updateZoomLevel(oldZoomLevel);
 779 }
 780
 781 void DolphinView::setShowHiddenFiles(bool show)
 782 {
 783     if (m_viewAccessor.dirLister()->showingDotFiles() == show) {
 784         return;
 785     }
 786
 787     const KUrl viewPropsUrl = rootUrl();
 788     ViewProperties props(viewPropsUrl);
 789     props.setShowHiddenFiles(show);
 790
 791     m_viewAccessor.dirLister()->setShowingDotFiles(show);
 792     emit showHiddenFilesChanged();
 793 }
 794
 795 void DolphinView::setCategorizedSorting(bool categorized)
 796 {
 797     if (categorized == categorizedSorting()) {
 798         return;
 799     }
 800
 801     // setCategorizedSorting(true) may only get invoked
 802     // if the view supports categorized sorting
 803     Q_ASSERT(!categorized || supportsCategorizedSorting());
 804
 805     ViewProperties props(rootUrl());
 806     props.setCategorizedSorting(categorized);
 807     props.save();
 808
 809     m_storedCategorizedSorting = categorized;
 810     m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 811
 812     emit categorizedSortingChanged();
 813 }
 814
 815 void DolphinView::toggleSortOrder()
 816 {
 817     const Qt::SortOrder order = (sortOrder() == Qt::AscendingOrder) ?
 818                                 Qt::DescendingOrder :
 819                                 Qt::AscendingOrder;
 820     setSortOrder(order);
 821 }
 822
 823 void DolphinView::toggleSortFoldersFirst()
 824 {
 825     setSortFoldersFirst(!sortFoldersFirst());
 826 }
 827
 828 void DolphinView::toggleAdditionalInfo(QAction* action)
 829 {
 830     const KFileItemDelegate::Information info =
 831         static_cast<KFileItemDelegate::Information>(action->data().toInt());
 832
 833     KFileItemDelegate::InformationList list = additionalInfo();
 834
 835     const bool show = action->isChecked();
 836
 837     const int index = list.indexOf(info);
 838     const bool containsInfo = (index >= 0);
 839     if (show && !containsInfo) {
 840         list.append(info);
 841         setAdditionalInfo(list);
 842     } else if (!show && containsInfo) {
 843         list.removeAt(index);
 844         setAdditionalInfo(list);
 845         Q_ASSERT(list.indexOf(info) < 0);
 846     }
 847 }
 848
 849 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 850 {
 851     QWidget::mouseReleaseEvent(event);
 852     setActive(true);
 853 }
 854
 855 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 856 {
 857     switch (event->type()) {
 858     case QEvent::FocusIn:
 859         if (watched == m_viewAccessor.itemView()) {
 860             m_controller->requestActivation();
 861         }
 862         break;
 863
 864     case QEvent::DragEnter:
 865         if (watched == m_viewAccessor.itemView()->viewport()) {
 866             setActive(true);
 867         }
 868         break;
 869
 870     case QEvent::KeyPress:
 871         if (watched == m_viewAccessor.itemView()) {
 872             // clear the selection when Escape has been pressed
 873             QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
 874             if (keyEvent->key() == Qt::Key_Escape) {
 875                 clearSelection();
 876             }
 877         }
 878         break;
 879
 880     case QEvent::Wheel:
 881         if (watched == m_viewAccessor.itemView()->viewport()) {
 882             // Ctrl+wheel events should cause icon zooming, but not if the left mouse button is pressed
 883             // (the user is probably trying to scroll during a selection in that case)
 884             QWheelEvent* wheelEvent = static_cast<QWheelEvent*>(event);
 885             if (wheelEvent->modifiers() & Qt::ControlModifier && !(wheelEvent->buttons() & Qt::LeftButton)) {
 886                 const int delta = wheelEvent->delta();
 887                 const int level = zoomLevel();
 888                 if (delta > 0) {
 889                     setZoomLevel(level + 1);
 890                 } else if (delta < 0) {
 891                     setZoomLevel(level - 1);
 892                 }
 893                 return true;
 894             }
 895         }
 896         break;
 897
 898     default:
 899         break;
 900     }
 901
 902     return QWidget::eventFilter(watched, event);
 903 }
 904
 905 void DolphinView::activate()
 906 {
 907     setActive(true);
 908 }
 909
 910 void DolphinView::triggerItem(const KFileItem& item)
 911 {
 912     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 913     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 914         // items are selected by the user, hence don't trigger the
 915         // item specified by 'index'
 916         return;
 917     }
 918
 919     // TODO: the m_isContextMenuOpen check is a workaround for Qt-issue 207192
 920     if (item.isNull() || m_isContextMenuOpen) {
 921         return;
 922     }
 923
 924     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 925 }
 926
 927 void DolphinView::emitDelayedSelectionChangedSignal()
 928 {
 929     // Invoke emitSelectionChangedSignal() with a delay of 300 ms. This assures
 930     // that fast selection changes don't result in expensive operations to
 931     // collect all file items for the signal (see DolphinView::selectedItems()).
 932     m_selectionChangedTimer->start();
 933 }
 934
 935 void DolphinView::emitSelectionChangedSignal()
 936 {
 937     emit selectionChanged(DolphinView::selectedItems());
 938 }
 939
 940 void DolphinView::openContextMenu(const QPoint& pos,
 941                                   const QList<QAction*>& customActions)
 942 {
 943     KFileItem item;
 944     const QModelIndex index = m_viewAccessor.itemView()->indexAt(pos);
 945     if (index.isValid() && (index.column() == DolphinModel::Name)) {
 946         const QModelIndex dolphinModelIndex = m_viewAccessor.proxyModel()->mapToSource(index);
 947         item = m_viewAccessor.dirModel()->itemForIndex(dolphinModelIndex);
 948     }
 949
 950     m_isContextMenuOpen = true; // TODO: workaround for Qt-issue 207192
 951     emit requestContextMenu(item, url(), customActions);
 952     m_isContextMenuOpen = false;
 953 }
 954
 955 void DolphinView::dropUrls(const KFileItem& destItem,
 956                            const KUrl& destPath,
 957                            QDropEvent* event)
 958 {
 959     addNewFileNames(event->mimeData());
 960     DragAndDropHelper::instance().dropUrls(destItem, destPath, event, this);
 961 }
 962
 963 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 964 {
 965     ViewProperties props(rootUrl());
 966     props.setSorting(sorting);
 967
 968     m_viewAccessor.proxyModel()->setSorting(sorting);
 969
 970     emit sortingChanged(sorting);
 971 }
 972
 973 void DolphinView::updateSortOrder(Qt::SortOrder order)
 974 {
 975     ViewProperties props(rootUrl());
 976     props.setSortOrder(order);
 977
 978     m_viewAccessor.proxyModel()->setSortOrder(order);
 979
 980     emit sortOrderChanged(order);
 981 }
 982
 983 void DolphinView::updateSortFoldersFirst(bool foldersFirst)
 984 {
 985     ViewProperties props(rootUrl());
 986     props.setSortFoldersFirst(foldersFirst);
 987
 988     m_viewAccessor.proxyModel()->setSortFoldersFirst(foldersFirst);
 989
 990     emit sortFoldersFirstChanged(foldersFirst);
 991 }
 992
 993 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 994 {
 995     ViewProperties props(rootUrl());
 996     props.setAdditionalInfo(info);
 997     props.save();
 998
 999     m_viewAccessor.itemDelegate()->setShowInformation(info);
1000
1001     emit additionalInfoChanged();
1002 }
1003
1004 void DolphinView::updateAdditionalInfoActions(KActionCollection* collection)
1005 {
1006     const bool enable = (m_mode == DolphinView::DetailsView) ||
1007                         (m_mode == DolphinView::IconsView);
1008
1009     QAction* showSizeInfo = collection->action("show_size_info");
1010     QAction* showDateInfo = collection->action("show_date_info");
1011     QAction* showPermissionsInfo = collection->action("show_permissions_info");
1012     QAction* showOwnerInfo = collection->action("show_owner_info");
1013     QAction* showGroupInfo = collection->action("show_group_info");
1014     QAction* showMimeInfo = collection->action("show_mime_info");
1015
1016     showSizeInfo->setChecked(false);
1017     showDateInfo->setChecked(false);
1018     showPermissionsInfo->setChecked(false);
1019     showOwnerInfo->setChecked(false);
1020     showGroupInfo->setChecked(false);
1021     showMimeInfo->setChecked(false);
1022
1023     showSizeInfo->setEnabled(enable);
1024     showDateInfo->setEnabled(enable);
1025     showPermissionsInfo->setEnabled(enable);
1026     showOwnerInfo->setEnabled(enable);
1027     showGroupInfo->setEnabled(enable);
1028     showMimeInfo->setEnabled(enable);
1029
1030     foreach (KFileItemDelegate::Information info, m_viewAccessor.itemDelegate()->showInformation()) {
1031         switch (info) {
1032         case KFileItemDelegate::Size:
1033             showSizeInfo->setChecked(true);
1034             break;
1035         case KFileItemDelegate::ModificationTime:
1036             showDateInfo->setChecked(true);
1037             break;
1038         case KFileItemDelegate::Permissions:
1039             showPermissionsInfo->setChecked(true);
1040             break;
1041         case KFileItemDelegate::Owner:
1042             showOwnerInfo->setChecked(true);
1043             break;
1044         case KFileItemDelegate::OwnerAndGroup:
1045             showGroupInfo->setChecked(true);
1046             break;
1047         case KFileItemDelegate::FriendlyMimeType:
1048             showMimeInfo->setChecked(true);
1049             break;
1050         default:
1051             break;
1052         }
1053     }
1054 }
1055
1056 QPair<bool, QString> DolphinView::pasteInfo() const
1057 {
1058     return KonqOperations::pasteInfo(url());
1059 }
1060
1061 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
1062 {
1063     m_tabsForFiles = tabsForFiles;
1064 }
1065
1066 bool DolphinView::isTabsForFilesEnabled() const
1067 {
1068     return m_tabsForFiles;
1069 }
1070
1071 void DolphinView::activateItem(const KUrl& url)
1072 {
1073     // TODO: If DolphinViewContainer uses DolphinView::restoreState(...) to restore the
1074     // view state in KDE 4.5, this function can be removed.
1075     m_activeItemUrl = url;
1076 }
1077
1078 bool DolphinView::itemsExpandable() const
1079 {
1080     return m_viewAccessor.itemsExpandable();
1081 }
1082
1083 void DolphinView::restoreState(QDataStream &stream)
1084 {
1085      // current item
1086     stream >> m_activeItemUrl;
1087
1088     // view position
1089     stream >> m_restoredContentsPosition;
1090
1091     // expanded folders (only relevant for the details view - will be ignored by the view in other view modes)
1092     QSet<KUrl> urlsToExpand;
1093     stream >> urlsToExpand;
1094     const DolphinDetailsViewExpander* expander = m_viewAccessor.setExpandedUrls(urlsToExpand);
1095
1096     if (expander) {
1097         m_expanderActive = true;
1098         connect (expander, SIGNAL(completed()), this, SLOT(slotLoadingCompleted()));
1099     }
1100     else {
1101         m_expanderActive = false;
1102     }
1103 }
1104
1105 void DolphinView::saveState(QDataStream &stream)
1106 {
1107     // current item
1108     KFileItem currentItem;
1109     const QAbstractItemView* view = m_viewAccessor.itemView();
1110
1111     if(view) {
1112         const QModelIndex proxyIndex = view->currentIndex();
1113         const QModelIndex dirModelIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
1114         currentItem = m_viewAccessor.dirModel()->itemForIndex(dirModelIndex);
1115     }
1116
1117     KUrl currentUrl;
1118     if (!currentItem.isNull())
1119         currentUrl = currentItem.url();
1120
1121     stream << currentUrl;
1122
1123     // view position
1124     stream << contentsPosition();
1125
1126     // expanded folders (only relevant for the details view - the set will be empty in other view modes)
1127     stream << m_viewAccessor.expandedUrls();
1128 }
1129
1130 void DolphinView::observeCreatedItem(const KUrl& url)
1131 {
1132     m_createdItemUrl = url;
1133     connect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
1134             this, SLOT(selectAndScrollToCreatedItem()));
1135 }
1136
1137 void DolphinView::selectAndScrollToCreatedItem()
1138 {
1139     const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_createdItemUrl);
1140     if (dirIndex.isValid()) {
1141         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1142         m_viewAccessor.itemView()->setCurrentIndex(proxyIndex);
1143     }
1144
1145     disconnect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
1146                this, SLOT(selectAndScrollToCreatedItem()));
1147     m_createdItemUrl = KUrl();
1148 }
1149
1150 void DolphinView::emitContentsMoved()
1151 {
1152     // TODO: If DolphinViewContainer uses DolphinView::saveState(...) to save the
1153     // view state in KDE 4.5, the contentsMoved signal might not be needed anymore,
1154     // depending on how the implementation is done.
1155     // In that case, the code in contentsPosition() can be moved to saveState().
1156
1157     // only emit the contents moved signal if no directory loading is ongoing
1158     // (this would reset the contents position always to (0, 0))
1159     if (!m_loadingDirectory) {
1160         const QPoint pos(contentsPosition());
1161         emit contentsMoved(pos.x(), pos.y());
1162     }
1163 }
1164
1165 void DolphinView::showHoverInformation(const KFileItem& item)
1166 {
1167     emit requestItemInfo(item);
1168 }
1169
1170 void DolphinView::clearHoverInformation()
1171 {
1172     emit requestItemInfo(KFileItem());
1173 }
1174
1175 void DolphinView::slotDeleteFileFinished(KJob* job)
1176 {
1177     if (job->error() == 0) {
1178         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1179     } else if (job->error() != KIO::ERR_USER_CANCELED) {
1180         emit errorMessage(job->errorString());
1181     }
1182 }
1183
1184 void DolphinView::slotRequestUrlChange(const KUrl& url)
1185 {
1186     emit requestUrlChange(url);
1187     m_controller->setUrl(url);
1188 }
1189
1190 void DolphinView::slotDirListerCompleted()
1191 {
1192     if (!m_expanderActive) {
1193         slotLoadingCompleted();
1194     }
1195
1196     if (!m_newFileNames.isEmpty()) {
1197         // select all newly added items created by a paste operation or
1198         // a drag & drop operation
1199         const int rowCount = m_viewAccessor.proxyModel()->rowCount();
1200         QItemSelection selection;
1201         for (int row = 0; row < rowCount; ++row) {
1202             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->index(row, 0);
1203             const QModelIndex dirIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
1204             const KUrl url = m_viewAccessor.dirModel()->itemForIndex(dirIndex).url();
1205             if (m_newFileNames.contains(url.fileName())) {
1206                 selection.merge(QItemSelection(proxyIndex, proxyIndex), QItemSelectionModel::Select);
1207             }
1208         }
1209         m_viewAccessor.itemView()->selectionModel()->select(selection, QItemSelectionModel::Select);
1210
1211         m_newFileNames.clear();
1212     }
1213 }
1214
1215 void DolphinView::slotLoadingCompleted()
1216 {
1217     m_expanderActive = false;
1218     m_loadingDirectory = false;
1219
1220     if (!m_activeItemUrl.isEmpty()) {
1221         // assure that the current item remains visible
1222         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_activeItemUrl);
1223         if (dirIndex.isValid()) {
1224             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1225             QAbstractItemView* view = m_viewAccessor.itemView();
1226             const bool clearSelection = !hasSelection();
1227             view->setCurrentIndex(proxyIndex);
1228             if (clearSelection) {
1229                 view->clearSelection();
1230             }
1231             m_activeItemUrl.clear();
1232         }
1233     }
1234
1235     if (!m_selectedItems.isEmpty()) {
1236         changeSelection(m_selectedItems);
1237         m_selectedItems.clear();
1238     }
1239
1240     // Restore the contents position. This has to be done using a Qt::QueuedConnection
1241     // because the view might not be in its final state yet.
1242     QMetaObject::invokeMethod(this, "restoreContentsPosition", Qt::QueuedConnection);
1243 }
1244
1245 void DolphinView::slotRefreshItems()
1246 {
1247     if (m_assureVisibleCurrentIndex) {
1248         m_assureVisibleCurrentIndex = false;
1249         m_viewAccessor.itemView()->scrollTo(m_viewAccessor.itemView()->currentIndex());
1250     }
1251 }
1252
1253 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1254 {
1255     if (!url.isValid()) {
1256         const QString location(url.pathOrUrl());
1257         if (location.isEmpty()) {
1258             emit errorMessage(i18nc("@info:status", "The location is empty."));
1259         } else {
1260             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1261         }
1262         return;
1263     }
1264
1265     m_loadingDirectory = true;
1266     m_expanderActive = false;
1267
1268     m_viewAccessor.dirLister()->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
1269 }
1270
1271 void DolphinView::applyViewProperties()
1272 {
1273     if (m_ignoreViewProperties) {
1274         return;
1275     }
1276
1277     const ViewProperties props(rootUrl());
1278
1279     const Mode mode = props.viewMode();
1280     if (m_mode != mode) {
1281         const int oldZoomLevel = m_controller->zoomLevel();
1282
1283         m_mode = mode;
1284         createView();
1285         emit modeChanged();
1286
1287         updateZoomLevel(oldZoomLevel);
1288     }
1289     if (m_viewAccessor.itemView() == 0) {
1290         createView();
1291     }
1292     Q_ASSERT(m_viewAccessor.itemView() != 0);
1293     Q_ASSERT(m_viewAccessor.itemDelegate() != 0);
1294
1295     const bool showHiddenFiles = props.showHiddenFiles();
1296     if (showHiddenFiles != m_viewAccessor.dirLister()->showingDotFiles()) {
1297         m_viewAccessor.dirLister()->setShowingDotFiles(showHiddenFiles);
1298         emit showHiddenFilesChanged();
1299     }
1300
1301     m_storedCategorizedSorting = props.categorizedSorting();
1302     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1303     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
1304         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
1305         emit categorizedSortingChanged();
1306     }
1307
1308     const DolphinView::Sorting sorting = props.sorting();
1309     if (sorting != m_viewAccessor.proxyModel()->sorting()) {
1310         m_viewAccessor.proxyModel()->setSorting(sorting);
1311         emit sortingChanged(sorting);
1312     }
1313
1314     const Qt::SortOrder sortOrder = props.sortOrder();
1315     if (sortOrder != m_viewAccessor.proxyModel()->sortOrder()) {
1316         m_viewAccessor.proxyModel()->setSortOrder(sortOrder);
1317         emit sortOrderChanged(sortOrder);
1318     }
1319
1320     const bool sortFoldersFirst = props.sortFoldersFirst();
1321     if (sortFoldersFirst != m_viewAccessor.proxyModel()->sortFoldersFirst()) {
1322         m_viewAccessor.proxyModel()->setSortFoldersFirst(sortFoldersFirst);
1323         emit sortFoldersFirstChanged(sortFoldersFirst);
1324     }
1325
1326     KFileItemDelegate::InformationList info = props.additionalInfo();
1327     if (info != m_viewAccessor.itemDelegate()->showInformation()) {
1328         m_viewAccessor.itemDelegate()->setShowInformation(info);
1329         emit additionalInfoChanged();
1330     }
1331
1332     const bool showPreview = props.showPreview();
1333     if (showPreview != m_showPreview) {
1334         m_showPreview = showPreview;
1335         const int oldZoomLevel = m_controller->zoomLevel();
1336         emit showPreviewChanged();
1337
1338         // Enabling or disabling the preview might change the icon size of the view.
1339         // As the view does not emit a signal when the icon size has been changed,
1340         // the used zoom level of the controller must be adjusted manually:
1341         updateZoomLevel(oldZoomLevel);
1342     }
1343
1344     if (DolphinSettings::instance().generalSettings()->globalViewProps()) {
1345         // During the lifetime of a DolphinView instance the global view properties
1346         // should not be changed. This allows e. g. to split a view and use different
1347         // view properties for each view.
1348         m_ignoreViewProperties = true;
1349     }
1350 }
1351
1352 void DolphinView::createView()
1353 {
1354     deleteView();
1355
1356     Q_ASSERT(m_viewAccessor.itemView() == 0);
1357     m_viewAccessor.createView(this, m_controller, m_mode);
1358
1359     QAbstractItemView* view = m_viewAccessor.itemView();
1360     Q_ASSERT(view != 0);
1361     view->installEventFilter(this);
1362     view->viewport()->installEventFilter(this);
1363
1364     m_controller->setItemView(view);
1365     connect(m_controller, SIGNAL(selectionChanged()),
1366             this, SLOT(emitDelayedSelectionChangedSignal()));
1367
1368     // When changing the view mode, the selection is lost due to reinstantiating
1369     // a new item view with a custom selection model. Pass the ownership of the
1370     // selection model to DolphinView, so that it can be shared by all item views.
1371     if (m_selectionModel != 0) {
1372         view->setSelectionModel(m_selectionModel);
1373     } else {
1374         m_selectionModel = view->selectionModel();
1375     }
1376     m_selectionModel->setParent(this);
1377
1378     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
1379             this, SLOT(emitContentsMoved()));
1380     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
1381             this, SLOT(emitContentsMoved()));
1382
1383     setFocusProxy(m_viewAccessor.layoutTarget());
1384     m_topLayout->insertWidget(1, m_viewAccessor.layoutTarget());
1385 }
1386
1387 void DolphinView::deleteView()
1388 {
1389     QAbstractItemView* view = m_viewAccessor.itemView();
1390     if (view != 0) {
1391         // It's important to set the keyboard focus to the parent
1392         // before deleting the view: Otherwise when having a split
1393         // view the other view will get the focus and will request
1394         // an activation (see DolphinView::eventFilter()).
1395         setFocusProxy(0);
1396         setFocus();
1397
1398         m_topLayout->removeWidget(view);
1399         view->close();
1400
1401         // disconnect all signal/slots
1402         disconnect(view);
1403         m_controller->disconnect(view);
1404         view->disconnect();
1405         disconnect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
1406                    this, SLOT(emitContentsMoved()));
1407         disconnect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
1408                    this, SLOT(emitContentsMoved()));
1409
1410         m_viewAccessor.deleteView();
1411     }
1412 }
1413
1414 void DolphinView::pasteToUrl(const KUrl& url)
1415 {
1416     addNewFileNames(QApplication::clipboard()->mimeData());
1417     KonqOperations::doPaste(this, url);
1418 }
1419
1420 void DolphinView::updateZoomLevel(int oldZoomLevel)
1421 {
1422     const int newZoomLevel = ZoomLevelInfo::zoomLevelForIconSize(m_viewAccessor.itemView()->iconSize());
1423     if (oldZoomLevel != newZoomLevel) {
1424         m_controller->setZoomLevel(newZoomLevel);
1425         emit zoomLevelChanged(newZoomLevel);
1426     }
1427 }
1428
1429 KUrl::List DolphinView::simplifiedSelectedUrls() const
1430 {
1431     KUrl::List list = selectedUrls();
1432     if (itemsExpandable() ) {
1433         list = KDirModel::simplifiedUrlList(list);
1434     }
1435     return list;
1436 }
1437
1438 QMimeData* DolphinView::selectionMimeData() const
1439 {
1440     const QAbstractItemView* view = m_viewAccessor.itemView();
1441     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
1442     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
1443     return m_viewAccessor.dirModel()->mimeData(selection.indexes());
1444 }
1445
1446 void DolphinView::addNewFileNames(const QMimeData* mimeData)
1447 {
1448     const KUrl::List urls = KUrl::List::fromMimeData(mimeData);
1449     foreach (const KUrl& url, urls) {
1450         m_newFileNames.insert(url.fileName());
1451     }
1452 }
1453
1454 DolphinView::ViewAccessor::ViewAccessor(DolphinSortFilterProxyModel* proxyModel) :
1455     m_iconsView(0),
1456     m_detailsView(0),
1457     m_columnsContainer(0),
1458     m_proxyModel(proxyModel),
1459     m_dragSource(0)
1460 {
1461 }
1462
1463 DolphinView::ViewAccessor::~ViewAccessor()
1464 {
1465     delete m_dragSource;
1466     m_dragSource = 0;
1467 }
1468
1469 void DolphinView::ViewAccessor::createView(QWidget* parent,
1470                                            DolphinController* controller,
1471                                            Mode mode)
1472 {
1473     Q_ASSERT(itemView() == 0);
1474
1475     switch (mode) {
1476     case IconsView:
1477         m_iconsView = new DolphinIconsView(parent, controller, m_proxyModel);
1478         break;
1479
1480     case DetailsView:
1481         m_detailsView = new DolphinDetailsView(parent, controller, m_proxyModel);
1482         break;
1483
1484     case ColumnView:
1485         m_columnsContainer = new DolphinColumnViewContainer(parent, controller);
1486         break;
1487
1488     default:
1489         Q_ASSERT(false);
1490     }
1491 }
1492
1493 void DolphinView::ViewAccessor::deleteView()
1494 {
1495     QAbstractItemView* view = itemView();
1496     if (view != 0) {
1497         if (DragAndDropHelper::instance().isDragSource(view)) {
1498             // The view is a drag source (the feature "Open folders
1499             // during drag operations" is used). Deleting the view
1500             // during an ongoing drag operation is not allowed, so
1501             // this will postponed.
1502             if (m_dragSource != 0) {
1503                 // the old stored view is obviously not the drag source anymore
1504                 m_dragSource->deleteLater();
1505                 m_dragSource = 0;
1506             }
1507             view->hide();
1508             m_dragSource = view;
1509         } else {
1510             view->deleteLater();
1511         }
1512     }
1513
1514     m_iconsView = 0;
1515     m_detailsView = 0;
1516
1517     if (m_columnsContainer != 0) {
1518         m_columnsContainer->deleteLater();
1519     }
1520     m_columnsContainer = 0;
1521 }
1522
1523
1524 void DolphinView::ViewAccessor::prepareUrlChange(const KUrl& url)
1525 {
1526     if (m_columnsContainer != 0) {
1527         m_columnsContainer->showColumn(url);
1528     }
1529
1530     if(!m_detailsViewExpander.isNull()) {
1531         // Stop expanding items in the current folder
1532         m_detailsViewExpander->stop();
1533     }
1534 }
1535
1536 QAbstractItemView* DolphinView::ViewAccessor::itemView() const
1537 {
1538     if (m_iconsView != 0) {
1539         return m_iconsView;
1540     }
1541
1542     if (m_detailsView != 0) {
1543         return m_detailsView;
1544     }
1545
1546     if (m_columnsContainer != 0) {
1547         return m_columnsContainer->activeColumn();
1548     }
1549
1550     return 0;
1551 }
1552
1553 KFileItemDelegate* DolphinView::ViewAccessor::itemDelegate() const
1554 {
1555     return static_cast<KFileItemDelegate*>(itemView()->itemDelegate());
1556 }
1557
1558 QWidget* DolphinView::ViewAccessor::layoutTarget() const
1559 {
1560     if (m_columnsContainer != 0) {
1561         return m_columnsContainer;
1562     }
1563     return itemView();
1564 }
1565
1566 KUrl DolphinView::ViewAccessor::rootUrl() const
1567 {
1568     return (m_columnsContainer != 0) ? m_columnsContainer->rootUrl() : KUrl();
1569 }
1570
1571 bool DolphinView::ViewAccessor::supportsCategorizedSorting() const
1572 {
1573     return m_iconsView != 0;
1574 }
1575
1576 bool DolphinView::ViewAccessor::itemsExpandable() const
1577 {
1578     return (m_detailsView != 0) && m_detailsView->itemsExpandable();
1579 }
1580
1581
1582 QSet<KUrl> DolphinView::ViewAccessor::expandedUrls() const
1583 {
1584     if(m_detailsView != 0) {
1585         return m_detailsView->expandedUrls();
1586     }
1587     else {
1588         return QSet<KUrl>();
1589     }
1590 }
1591
1592 const DolphinDetailsViewExpander* DolphinView::ViewAccessor::setExpandedUrls(const QSet<KUrl>& urlsToExpand)
1593 {
1594     if((m_detailsView != 0) && m_detailsView->itemsExpandable() && !urlsToExpand.isEmpty()) {
1595         m_detailsViewExpander = new DolphinDetailsViewExpander(m_detailsView, urlsToExpand);
1596         return m_detailsViewExpander;
1597     }
1598     else {
1599         return 0;
1600     }
1601 }
1602
1603 bool DolphinView::ViewAccessor::reloadOnAdditionalInfoChange() const
1604 {
1605     // the details view requires no reloading of the directory, as it maps
1606     // the file item delegate info to its columns internally
1607     return m_detailsView != 0;
1608 }
1609
1610 DolphinModel* DolphinView::ViewAccessor::dirModel() const
1611 {
1612     return static_cast<DolphinModel*>(proxyModel()->sourceModel());
1613 }
1614
1615 DolphinSortFilterProxyModel* DolphinView::ViewAccessor::proxyModel() const
1616 {
1617     if (m_columnsContainer != 0) {
1618         return static_cast<DolphinSortFilterProxyModel*>(m_columnsContainer->activeColumn()->model());
1619     }
1620     return m_proxyModel;
1621 }
1622
1623 KDirLister* DolphinView::ViewAccessor::dirLister() const
1624 {
1625     return dirModel()->dirLister();
1626 }
1627
1628 void DolphinView::slotRedirection(const KUrl& oldUrl, const KUrl& newUrl)
1629 {
1630     emit redirection(oldUrl, newUrl);
1631     m_controller->redirectToUrl(newUrl); // #186947
1632 }
1633
1634 void DolphinView::restoreContentsPosition()
1635 {
1636     if (!m_restoredContentsPosition.isNull()) {
1637         setContentsPosition(m_restoredContentsPosition.x(), m_restoredContentsPosition.y());
1638         m_restoredContentsPosition = QPoint();
1639     }
1640 }
1641
1642 #include "dolphinview.moc"