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     setUrl(url());
 442     loadDirectory(url(), true);
 443 }
 444
 445 void DolphinView::refresh()
 446 {
 447     m_ignoreViewProperties = false;
 448
 449     const bool oldActivationState = m_active;
 450     const int oldZoomLevel = m_controller->zoomLevel();
 451     m_active = true;
 452
 453     createView();
 454     applyViewProperties();
 455     reload();
 456
 457     setActive(oldActivationState);
 458     updateZoomLevel(oldZoomLevel);
 459 }
 460
 461 void DolphinView::updateView(const KUrl& url, const KUrl& rootUrl)
 462 {
 463     Q_UNUSED(rootUrl); // TODO: remove after columnview-cleanup has been finished
 464
 465     if (m_controller->url() == url) {
 466         return;
 467     }
 468
 469     m_controller->setUrl(url); // emits urlChanged, which we forward
 470     m_viewAccessor.prepareUrlChange(url);
 471     applyViewProperties();
 472     loadDirectory(url);
 473
 474     // When changing the URL there is no need to keep the version
 475     // data of the previous URL.
 476     m_viewAccessor.dirModel()->clearVersionData();
 477
 478     emit startedPathLoading(url);
 479 }
 480
 481 void DolphinView::setNameFilter(const QString& nameFilter)
 482 {
 483     m_controller->setNameFilter(nameFilter);
 484 }
 485
 486 void DolphinView::calculateItemCount(int& fileCount,
 487                                      int& folderCount,
 488                                      KIO::filesize_t& totalFileSize) const
 489 {
 490     foreach (const KFileItem& item, m_viewAccessor.dirLister()->items()) {
 491         if (item.isDir()) {
 492             ++folderCount;
 493         } else {
 494             ++fileCount;
 495             totalFileSize += item.size();
 496         }
 497     }
 498 }
 499
 500 QString DolphinView::statusBarText() const
 501 {
 502     QString text;
 503     int folderCount = 0;
 504     int fileCount = 0;
 505     KIO::filesize_t totalFileSize = 0;
 506
 507     if (hasSelection()) {
 508         // give a summary of the status of the selected files
 509         const KFileItemList list = selectedItems();
 510         if (list.isEmpty()) {
 511             // when an item is triggered, it is temporary selected but selectedItems()
 512             // will return an empty list
 513             return text;
 514         }
 515
 516         KFileItemList::const_iterator it = list.begin();
 517         const KFileItemList::const_iterator end = list.end();
 518         while (it != end) {
 519             const KFileItem& item = *it;
 520             if (item.isDir()) {
 521                 ++folderCount;
 522             } else {
 523                 ++fileCount;
 524                 totalFileSize += item.size();
 525             }
 526             ++it;
 527         }
 528
 529         if (folderCount + fileCount == 1) {
 530             // if only one item is selected, show the filename
 531             const QString name = list.first().name();
 532             text = (folderCount == 1) ? i18nc("@info:status", "<filename>%1</filename> selected", name) :
 533                                         i18nc("@info:status", "<filename>%1</filename> selected (%2)",
 534                                               name, KIO::convertSize(totalFileSize));
 535         } else {
 536             // at least 2 items are selected
 537             const QString foldersText = i18ncp("@info:status", "1 Folder selected", "%1 Folders selected", folderCount);
 538             const QString filesText = i18ncp("@info:status", "1 File selected", "%1 Files selected", fileCount);
 539             if ((folderCount > 0) && (fileCount > 0)) {
 540                 text = i18nc("@info:status folders, files (size)", "%1, %2 (%3)",
 541                              foldersText, filesText, KIO::convertSize(totalFileSize));
 542             } else if (fileCount > 0) {
 543                 text = i18nc("@info:status files (size)", "%1 (%2)", filesText, KIO::convertSize(totalFileSize));
 544             } else {
 545                 Q_ASSERT(folderCount > 0);
 546                 text = foldersText;
 547             }
 548         }
 549     } else {
 550         calculateItemCount(fileCount, folderCount, totalFileSize);
 551         text = KIO::itemsSummaryString(fileCount + folderCount,
 552                                        fileCount, folderCount,
 553                                        totalFileSize, true);
 554     }
 555
 556     return text;
 557 }
 558
 559 QList<QAction*> DolphinView::versionControlActions(const KFileItemList& items) const
 560 {
 561     return m_controller->versionControlActions(items);
 562 }
 563
 564 void DolphinView::setUrl(const KUrl& url)
 565 {
 566     m_newFileNames.clear();
 567     updateView(url, KUrl());
 568 }
 569
 570 void DolphinView::selectAll()
 571 {
 572     QAbstractItemView* view = m_viewAccessor.itemView();
 573     // TODO: there seems to be a bug in QAbstractItemView::selectAll(); if
 574     // the Ctrl-key is pressed (e. g. for Ctrl+A), selectAll() inverts the
 575     // selection instead of selecting all items. This is bypassed for KDE 4.0
 576     // by invoking clearSelection() first.
 577     view->clearSelection();
 578     view->selectAll();
 579 }
 580
 581 void DolphinView::invertSelection()
 582 {
 583     QItemSelectionModel* selectionModel = m_viewAccessor.itemView()->selectionModel();
 584     const QAbstractItemModel* itemModel = selectionModel->model();
 585
 586     const QModelIndex topLeft = itemModel->index(0, 0);
 587     const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 588                                                      itemModel->columnCount() - 1);
 589
 590     const QItemSelection selection(topLeft, bottomRight);
 591     selectionModel->select(selection, QItemSelectionModel::Toggle);
 592 }
 593
 594 void DolphinView::clearSelection()
 595 {
 596     QItemSelectionModel* selModel = m_viewAccessor.itemView()->selectionModel();
 597     const QModelIndex currentIndex = selModel->currentIndex();
 598     selModel->setCurrentIndex(currentIndex, QItemSelectionModel::Current |
 599                                             QItemSelectionModel::Clear);
 600     m_selectedItems.clear();
 601 }
 602
 603 void DolphinView::changeSelection(const KFileItemList& selection)
 604 {
 605     clearSelection();
 606     if (selection.isEmpty()) {
 607         return;
 608     }
 609     const KUrl& baseUrl = url();
 610     KUrl url;
 611     QItemSelection newSelection;
 612     foreach(const KFileItem& item, selection) {
 613         url = item.url().upUrl();
 614         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 615             QModelIndex index = m_viewAccessor.proxyModel()->mapFromSource(m_viewAccessor.dirModel()->indexForItem(item));
 616             newSelection.select(index, index);
 617         }
 618     }
 619     m_viewAccessor.itemView()->selectionModel()->select(newSelection,
 620                                          QItemSelectionModel::ClearAndSelect
 621                                          | QItemSelectionModel::Current);
 622 }
 623
 624 void DolphinView::renameSelectedItems()
 625 {
 626     KFileItemList items = selectedItems();
 627     const int itemCount = items.count();
 628     if (itemCount < 1) {
 629         return;
 630     }
 631
 632     if (itemCount > 1) {
 633         // More than one item has been selected for renaming. Open
 634         // a rename dialog and rename all items afterwards.
 635         QPointer<RenameDialog> dialog = new RenameDialog(this, items);
 636         if (dialog->exec() == QDialog::Rejected) {
 637             delete dialog;
 638             return;
 639         }
 640
 641         const QString newName = dialog->newName();
 642         if (newName.isEmpty()) {
 643             emit errorMessage(dialog->errorString());
 644             delete dialog;
 645             return;
 646         }
 647         delete dialog;
 648
 649         // the selection would be invalid after renaming the items, so just clear
 650         // it before
 651         clearSelection();
 652
 653         // TODO: check how this can be integrated into KIO::FileUndoManager/KonqOperations
 654         // as one operation instead of n rename operations like it is done now...
 655         Q_ASSERT(newName.contains('#'));
 656
 657         // currently the items are sorted by the selection order, resort
 658         // them by the file name
 659         qSort(items.begin(), items.end(), lessThan);
 660
 661         // iterate through all selected items and rename them...
 662         int index = 1;
 663         foreach (const KFileItem& item, items) {
 664             const KUrl& oldUrl = item.url();
 665             QString number;
 666             number.setNum(index++);
 667
 668             QString name = newName;
 669             name.replace('#', number);
 670
 671             if (oldUrl.fileName() != name) {
 672                 KUrl newUrl = oldUrl;
 673                 newUrl.setFileName(name);
 674                 KonqOperations::rename(this, oldUrl, newUrl);
 675             }
 676         }
 677     } else if (DolphinSettings::instance().generalSettings()->renameInline()) {
 678         Q_ASSERT(itemCount == 1);
 679         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForItem(items.first());
 680         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
 681         m_viewAccessor.itemView()->edit(proxyIndex);
 682     } else {
 683         Q_ASSERT(itemCount == 1);
 684
 685         QPointer<RenameDialog> dialog = new RenameDialog(this, items);
 686         if (dialog->exec() == QDialog::Rejected) {
 687             delete dialog;
 688             return;
 689         }
 690
 691         const QString newName = dialog->newName();
 692         if (newName.isEmpty()) {
 693             emit errorMessage(dialog->errorString());
 694             delete dialog;
 695             return;
 696         }
 697         delete dialog;
 698
 699         const KUrl& oldUrl = items.first().url();
 700         KUrl newUrl = oldUrl;
 701         newUrl.setFileName(newName);
 702         KonqOperations::rename(this, oldUrl, newUrl);
 703     }
 704
 705     // assure that the current index remains visible when KDirLister
 706     // will notify the view about changed items
 707     m_assureVisibleCurrentIndex = true;
 708 }
 709
 710 void DolphinView::trashSelectedItems()
 711 {
 712     const KUrl::List list = simplifiedSelectedUrls();
 713     KonqOperations::del(this, KonqOperations::TRASH, list);
 714 }
 715
 716 void DolphinView::deleteSelectedItems()
 717 {
 718     const KUrl::List list = simplifiedSelectedUrls();
 719     const bool del = KonqOperations::askDeleteConfirmation(list,
 720                      KonqOperations::DEL,
 721                      KonqOperations::DEFAULT_CONFIRMATION,
 722                      this);
 723
 724     if (del) {
 725         KIO::Job* job = KIO::del(list);
 726         connect(job, SIGNAL(result(KJob*)),
 727                 this, SLOT(slotDeleteFileFinished(KJob*)));
 728     }
 729 }
 730
 731 void DolphinView::cutSelectedItems()
 732 {
 733     QMimeData* mimeData = selectionMimeData();
 734     KonqMimeData::addIsCutSelection(mimeData, true);
 735     QApplication::clipboard()->setMimeData(mimeData);
 736 }
 737
 738 void DolphinView::copySelectedItems()
 739 {
 740     QMimeData* mimeData = selectionMimeData();
 741     QApplication::clipboard()->setMimeData(mimeData);
 742 }
 743
 744 void DolphinView::paste()
 745 {
 746     pasteToUrl(url());
 747 }
 748
 749 void DolphinView::pasteIntoFolder()
 750 {
 751     const KFileItemList items = selectedItems();
 752     if ((items.count() == 1) && items.first().isDir()) {
 753         pasteToUrl(items.first().url());
 754     }
 755 }
 756
 757 void DolphinView::setShowPreview(bool show)
 758 {
 759     if (m_showPreview == show) {
 760         return;
 761     }
 762
 763     const KUrl viewPropsUrl = rootUrl();
 764     ViewProperties props(viewPropsUrl);
 765     props.setShowPreview(show);
 766
 767     m_showPreview = show;
 768     const int oldZoomLevel = m_controller->zoomLevel();
 769     emit showPreviewChanged();
 770
 771     // Enabling or disabling the preview might change the icon size of the view.
 772     // As the view does not emit a signal when the icon size has been changed,
 773     // the used zoom level of the controller must be adjusted manually:
 774     updateZoomLevel(oldZoomLevel);
 775 }
 776
 777 void DolphinView::setShowHiddenFiles(bool show)
 778 {
 779     if (m_viewAccessor.dirLister()->showingDotFiles() == show) {
 780         return;
 781     }
 782
 783     const KUrl viewPropsUrl = rootUrl();
 784     ViewProperties props(viewPropsUrl);
 785     props.setShowHiddenFiles(show);
 786
 787     m_viewAccessor.dirLister()->setShowingDotFiles(show);
 788     emit showHiddenFilesChanged();
 789 }
 790
 791 void DolphinView::setCategorizedSorting(bool categorized)
 792 {
 793     if (categorized == categorizedSorting()) {
 794         return;
 795     }
 796
 797     // setCategorizedSorting(true) may only get invoked
 798     // if the view supports categorized sorting
 799     Q_ASSERT(!categorized || supportsCategorizedSorting());
 800
 801     ViewProperties props(rootUrl());
 802     props.setCategorizedSorting(categorized);
 803     props.save();
 804
 805     m_storedCategorizedSorting = categorized;
 806     m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 807
 808     emit categorizedSortingChanged();
 809 }
 810
 811 void DolphinView::toggleSortOrder()
 812 {
 813     const Qt::SortOrder order = (sortOrder() == Qt::AscendingOrder) ?
 814                                 Qt::DescendingOrder :
 815                                 Qt::AscendingOrder;
 816     setSortOrder(order);
 817 }
 818
 819 void DolphinView::toggleSortFoldersFirst()
 820 {
 821     setSortFoldersFirst(!sortFoldersFirst());
 822 }
 823
 824 void DolphinView::toggleAdditionalInfo(QAction* action)
 825 {
 826     const KFileItemDelegate::Information info =
 827         static_cast<KFileItemDelegate::Information>(action->data().toInt());
 828
 829     KFileItemDelegate::InformationList list = additionalInfo();
 830
 831     const bool show = action->isChecked();
 832
 833     const int index = list.indexOf(info);
 834     const bool containsInfo = (index >= 0);
 835     if (show && !containsInfo) {
 836         list.append(info);
 837         setAdditionalInfo(list);
 838     } else if (!show && containsInfo) {
 839         list.removeAt(index);
 840         setAdditionalInfo(list);
 841         Q_ASSERT(list.indexOf(info) < 0);
 842     }
 843 }
 844
 845 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 846 {
 847     QWidget::mouseReleaseEvent(event);
 848     setActive(true);
 849 }
 850
 851 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 852 {
 853     switch (event->type()) {
 854     case QEvent::FocusIn:
 855         if (watched == m_viewAccessor.itemView()) {
 856             m_controller->requestActivation();
 857         }
 858         break;
 859
 860     case QEvent::DragEnter:
 861         if (watched == m_viewAccessor.itemView()->viewport()) {
 862             setActive(true);
 863         }
 864         break;
 865
 866     case QEvent::KeyPress:
 867         if (watched == m_viewAccessor.itemView()) {
 868             // clear the selection when Escape has been pressed
 869             QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
 870             if (keyEvent->key() == Qt::Key_Escape) {
 871                 clearSelection();
 872             }
 873         }
 874         break;
 875
 876     case QEvent::Wheel:
 877         if (watched == m_viewAccessor.itemView()->viewport()) {
 878             // Ctrl+wheel events should cause icon zooming, but not if the left mouse button is pressed
 879             // (the user is probably trying to scroll during a selection in that case)
 880             QWheelEvent* wheelEvent = static_cast<QWheelEvent*>(event);
 881             if (wheelEvent->modifiers() & Qt::ControlModifier && !(wheelEvent->buttons() & Qt::LeftButton)) {
 882                 const int delta = wheelEvent->delta();
 883                 const int level = zoomLevel();
 884                 if (delta > 0) {
 885                     setZoomLevel(level + 1);
 886                 } else if (delta < 0) {
 887                     setZoomLevel(level - 1);
 888                 }
 889                 return true;
 890             }
 891         }
 892         break;
 893
 894     default:
 895         break;
 896     }
 897
 898     return QWidget::eventFilter(watched, event);
 899 }
 900
 901 void DolphinView::activate()
 902 {
 903     setActive(true);
 904 }
 905
 906 void DolphinView::triggerItem(const KFileItem& item)
 907 {
 908     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 909     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 910         // items are selected by the user, hence don't trigger the
 911         // item specified by 'index'
 912         return;
 913     }
 914
 915     // TODO: the m_isContextMenuOpen check is a workaround for Qt-issue 207192
 916     if (item.isNull() || m_isContextMenuOpen) {
 917         return;
 918     }
 919
 920     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 921 }
 922
 923 void DolphinView::emitDelayedSelectionChangedSignal()
 924 {
 925     // Invoke emitSelectionChangedSignal() with a delay of 300 ms. This assures
 926     // that fast selection changes don't result in expensive operations to
 927     // collect all file items for the signal (see DolphinView::selectedItems()).
 928     m_selectionChangedTimer->start();
 929 }
 930
 931 void DolphinView::emitSelectionChangedSignal()
 932 {
 933     emit selectionChanged(DolphinView::selectedItems());
 934 }
 935
 936 void DolphinView::openContextMenu(const QPoint& pos,
 937                                   const QList<QAction*>& customActions)
 938 {
 939     KFileItem item;
 940     const QModelIndex index = m_viewAccessor.itemView()->indexAt(pos);
 941     if (index.isValid() && (index.column() == DolphinModel::Name)) {
 942         const QModelIndex dolphinModelIndex = m_viewAccessor.proxyModel()->mapToSource(index);
 943         item = m_viewAccessor.dirModel()->itemForIndex(dolphinModelIndex);
 944     }
 945
 946     m_isContextMenuOpen = true; // TODO: workaround for Qt-issue 207192
 947     emit requestContextMenu(item, url(), customActions);
 948     m_isContextMenuOpen = false;
 949 }
 950
 951 void DolphinView::dropUrls(const KFileItem& destItem,
 952                            const KUrl& destPath,
 953                            QDropEvent* event)
 954 {
 955     addNewFileNames(event->mimeData());
 956     DragAndDropHelper::instance().dropUrls(destItem, destPath, event, this);
 957 }
 958
 959 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 960 {
 961     ViewProperties props(rootUrl());
 962     props.setSorting(sorting);
 963
 964     m_viewAccessor.proxyModel()->setSorting(sorting);
 965
 966     emit sortingChanged(sorting);
 967 }
 968
 969 void DolphinView::updateSortOrder(Qt::SortOrder order)
 970 {
 971     ViewProperties props(rootUrl());
 972     props.setSortOrder(order);
 973
 974     m_viewAccessor.proxyModel()->setSortOrder(order);
 975
 976     emit sortOrderChanged(order);
 977 }
 978
 979 void DolphinView::updateSortFoldersFirst(bool foldersFirst)
 980 {
 981     ViewProperties props(rootUrl());
 982     props.setSortFoldersFirst(foldersFirst);
 983
 984     m_viewAccessor.proxyModel()->setSortFoldersFirst(foldersFirst);
 985
 986     emit sortFoldersFirstChanged(foldersFirst);
 987 }
 988
 989 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 990 {
 991     ViewProperties props(rootUrl());
 992     props.setAdditionalInfo(info);
 993     props.save();
 994
 995     m_viewAccessor.itemDelegate()->setShowInformation(info);
 996
 997     emit additionalInfoChanged();
 998 }
 999
1000 void DolphinView::updateAdditionalInfoActions(KActionCollection* collection)
1001 {
1002     const bool enable = (m_mode == DolphinView::DetailsView) ||
1003                         (m_mode == DolphinView::IconsView);
1004
1005     QAction* showSizeInfo = collection->action("show_size_info");
1006     QAction* showDateInfo = collection->action("show_date_info");
1007     QAction* showPermissionsInfo = collection->action("show_permissions_info");
1008     QAction* showOwnerInfo = collection->action("show_owner_info");
1009     QAction* showGroupInfo = collection->action("show_group_info");
1010     QAction* showMimeInfo = collection->action("show_mime_info");
1011
1012     showSizeInfo->setChecked(false);
1013     showDateInfo->setChecked(false);
1014     showPermissionsInfo->setChecked(false);
1015     showOwnerInfo->setChecked(false);
1016     showGroupInfo->setChecked(false);
1017     showMimeInfo->setChecked(false);
1018
1019     showSizeInfo->setEnabled(enable);
1020     showDateInfo->setEnabled(enable);
1021     showPermissionsInfo->setEnabled(enable);
1022     showOwnerInfo->setEnabled(enable);
1023     showGroupInfo->setEnabled(enable);
1024     showMimeInfo->setEnabled(enable);
1025
1026     foreach (KFileItemDelegate::Information info, m_viewAccessor.itemDelegate()->showInformation()) {
1027         switch (info) {
1028         case KFileItemDelegate::Size:
1029             showSizeInfo->setChecked(true);
1030             break;
1031         case KFileItemDelegate::ModificationTime:
1032             showDateInfo->setChecked(true);
1033             break;
1034         case KFileItemDelegate::Permissions:
1035             showPermissionsInfo->setChecked(true);
1036             break;
1037         case KFileItemDelegate::Owner:
1038             showOwnerInfo->setChecked(true);
1039             break;
1040         case KFileItemDelegate::OwnerAndGroup:
1041             showGroupInfo->setChecked(true);
1042             break;
1043         case KFileItemDelegate::FriendlyMimeType:
1044             showMimeInfo->setChecked(true);
1045             break;
1046         default:
1047             break;
1048         }
1049     }
1050 }
1051
1052 QPair<bool, QString> DolphinView::pasteInfo() const
1053 {
1054     return KonqOperations::pasteInfo(url());
1055 }
1056
1057 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
1058 {
1059     m_tabsForFiles = tabsForFiles;
1060 }
1061
1062 bool DolphinView::isTabsForFilesEnabled() const
1063 {
1064     return m_tabsForFiles;
1065 }
1066
1067 void DolphinView::activateItem(const KUrl& url)
1068 {
1069     // TODO: If DolphinViewContainer uses DolphinView::restoreState(...) to restore the
1070     // view state in KDE 4.5, this function can be removed.
1071     m_activeItemUrl = url;
1072 }
1073
1074 bool DolphinView::itemsExpandable() const
1075 {
1076     return m_viewAccessor.itemsExpandable();
1077 }
1078
1079 void DolphinView::restoreState(QDataStream &stream)
1080 {
1081      // current item
1082     stream >> m_activeItemUrl;
1083
1084     // view position
1085     stream >> m_restoredContentsPosition;
1086
1087     // expanded folders (only relevant for the details view - will be ignored by the view in other view modes)
1088     QSet<KUrl> urlsToExpand;
1089     stream >> urlsToExpand;
1090     const DolphinDetailsViewExpander* expander = m_viewAccessor.setExpandedUrls(urlsToExpand);
1091
1092     if (expander) {
1093         m_expanderActive = true;
1094         connect (expander, SIGNAL(completed()), this, SLOT(slotLoadingCompleted()));
1095     }
1096     else {
1097         m_expanderActive = false;
1098     }
1099 }
1100
1101 void DolphinView::saveState(QDataStream &stream)
1102 {
1103     // current item
1104     KFileItem currentItem;
1105     const QAbstractItemView* view = m_viewAccessor.itemView();
1106
1107     if(view) {
1108         const QModelIndex proxyIndex = view->currentIndex();
1109         const QModelIndex dirModelIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
1110         currentItem = m_viewAccessor.dirModel()->itemForIndex(dirModelIndex);
1111     }
1112
1113     KUrl currentUrl;
1114     if (!currentItem.isNull())
1115         currentUrl = currentItem.url();
1116
1117     stream << currentUrl;
1118
1119     // view position
1120     stream << contentsPosition();
1121
1122     // expanded folders (only relevant for the details view - the set will be empty in other view modes)
1123     stream << m_viewAccessor.expandedUrls();
1124 }
1125
1126 void DolphinView::observeCreatedItem(const KUrl& url)
1127 {
1128     m_createdItemUrl = url;
1129     connect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
1130             this, SLOT(selectAndScrollToCreatedItem()));
1131 }
1132
1133 void DolphinView::selectAndScrollToCreatedItem()
1134 {
1135     const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_createdItemUrl);
1136     if (dirIndex.isValid()) {
1137         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1138         m_viewAccessor.itemView()->setCurrentIndex(proxyIndex);
1139     }
1140
1141     disconnect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
1142                this, SLOT(selectAndScrollToCreatedItem()));
1143     m_createdItemUrl = KUrl();
1144 }
1145
1146 void DolphinView::restoreSelection()
1147 {
1148     disconnect(m_viewAccessor.dirLister(), SIGNAL(completed()), this, SLOT(restoreSelection()));
1149     changeSelection(m_selectedItems);
1150 }
1151
1152 void DolphinView::emitContentsMoved()
1153 {
1154     // TODO: If DolphinViewContainer uses DolphinView::saveState(...) to save the
1155     // view state in KDE 4.5, the contentsMoved signal might not be needed anymore,
1156     // depending on how the implementation is done.
1157     // In that case, the code in contentsPosition() can be moved to saveState().
1158
1159     // only emit the contents moved signal if no directory loading is ongoing
1160     // (this would reset the contents position always to (0, 0))
1161     if (!m_loadingDirectory) {
1162         const QPoint pos(contentsPosition());
1163         emit contentsMoved(pos.x(), pos.y());
1164     }
1165 }
1166
1167 void DolphinView::showHoverInformation(const KFileItem& item)
1168 {
1169     emit requestItemInfo(item);
1170 }
1171
1172 void DolphinView::clearHoverInformation()
1173 {
1174     emit requestItemInfo(KFileItem());
1175 }
1176
1177 void DolphinView::slotDeleteFileFinished(KJob* job)
1178 {
1179     if (job->error() == 0) {
1180         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1181     } else if (job->error() != KIO::ERR_USER_CANCELED) {
1182         emit errorMessage(job->errorString());
1183     }
1184 }
1185
1186 void DolphinView::slotRequestUrlChange(const KUrl& url)
1187 {
1188     emit requestUrlChange(url);
1189     m_controller->setUrl(url);
1190 }
1191
1192 void DolphinView::slotDirListerCompleted()
1193 {
1194     if (!m_expanderActive) {
1195         slotLoadingCompleted();
1196     }
1197
1198     if (!m_newFileNames.isEmpty()) {
1199         // select all newly added items created by a paste operation or
1200         // a drag & drop operation
1201         const int rowCount = m_viewAccessor.proxyModel()->rowCount();
1202         QItemSelection selection;
1203         for (int row = 0; row < rowCount; ++row) {
1204             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->index(row, 0);
1205             const QModelIndex dirIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
1206             const KUrl url = m_viewAccessor.dirModel()->itemForIndex(dirIndex).url();
1207             if (m_newFileNames.contains(url.fileName())) {
1208                 selection.merge(QItemSelection(proxyIndex, proxyIndex), QItemSelectionModel::Select);
1209             }
1210         }
1211         m_viewAccessor.itemView()->selectionModel()->select(selection, QItemSelectionModel::Select);
1212
1213         m_newFileNames.clear();
1214     }
1215 }
1216
1217 void DolphinView::slotLoadingCompleted()
1218 {
1219     m_expanderActive = false;
1220     m_loadingDirectory = false;
1221
1222     if (!m_activeItemUrl.isEmpty()) {
1223         // assure that the current item remains visible
1224         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_activeItemUrl);
1225         if (dirIndex.isValid()) {
1226             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1227             QAbstractItemView* view = m_viewAccessor.itemView();
1228             const bool clearSelection = !hasSelection();
1229             view->setCurrentIndex(proxyIndex);
1230             if (clearSelection) {
1231                 view->clearSelection();
1232             }
1233             m_activeItemUrl.clear();
1234         }
1235     }
1236
1237     // Restore the contents position. This has to be done using a Qt::QueuedConnection
1238     // because the view might not be in its final state yet.
1239     QMetaObject::invokeMethod(this, "restoreContentsPosition", Qt::QueuedConnection);
1240 }
1241
1242 void DolphinView::slotRefreshItems()
1243 {
1244     if (m_assureVisibleCurrentIndex) {
1245         m_assureVisibleCurrentIndex = false;
1246         m_viewAccessor.itemView()->scrollTo(m_viewAccessor.itemView()->currentIndex());
1247     }
1248 }
1249
1250 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1251 {
1252     if (!url.isValid()) {
1253         const QString location(url.pathOrUrl());
1254         if (location.isEmpty()) {
1255             emit errorMessage(i18nc("@info:status", "The location is empty."));
1256         } else {
1257             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1258         }
1259         return;
1260     }
1261
1262     m_loadingDirectory = true;
1263     m_expanderActive = false;
1264
1265     if (reload) {
1266         m_selectedItems = selectedItems();
1267         connect(m_viewAccessor.dirLister(), SIGNAL(completed()), this, SLOT(restoreSelection()));
1268     }
1269
1270     m_viewAccessor.dirLister()->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
1271 }
1272
1273 void DolphinView::applyViewProperties()
1274 {
1275     if (m_ignoreViewProperties) {
1276         return;
1277     }
1278
1279     const ViewProperties props(rootUrl());
1280
1281     const Mode mode = props.viewMode();
1282     if (m_mode != mode) {
1283         const int oldZoomLevel = m_controller->zoomLevel();
1284
1285         m_mode = mode;
1286         createView();
1287         emit modeChanged();
1288
1289         updateZoomLevel(oldZoomLevel);
1290     }
1291     if (m_viewAccessor.itemView() == 0) {
1292         createView();
1293     }
1294     Q_ASSERT(m_viewAccessor.itemView() != 0);
1295     Q_ASSERT(m_viewAccessor.itemDelegate() != 0);
1296
1297     const bool showHiddenFiles = props.showHiddenFiles();
1298     if (showHiddenFiles != m_viewAccessor.dirLister()->showingDotFiles()) {
1299         m_viewAccessor.dirLister()->setShowingDotFiles(showHiddenFiles);
1300         emit showHiddenFilesChanged();
1301     }
1302
1303     m_storedCategorizedSorting = props.categorizedSorting();
1304     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1305     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
1306         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
1307         emit categorizedSortingChanged();
1308     }
1309
1310     const DolphinView::Sorting sorting = props.sorting();
1311     if (sorting != m_viewAccessor.proxyModel()->sorting()) {
1312         m_viewAccessor.proxyModel()->setSorting(sorting);
1313         emit sortingChanged(sorting);
1314     }
1315
1316     const Qt::SortOrder sortOrder = props.sortOrder();
1317     if (sortOrder != m_viewAccessor.proxyModel()->sortOrder()) {
1318         m_viewAccessor.proxyModel()->setSortOrder(sortOrder);
1319         emit sortOrderChanged(sortOrder);
1320     }
1321
1322     const bool sortFoldersFirst = props.sortFoldersFirst();
1323     if (sortFoldersFirst != m_viewAccessor.proxyModel()->sortFoldersFirst()) {
1324         m_viewAccessor.proxyModel()->setSortFoldersFirst(sortFoldersFirst);
1325         emit sortFoldersFirstChanged(sortFoldersFirst);
1326     }
1327
1328     KFileItemDelegate::InformationList info = props.additionalInfo();
1329     if (info != m_viewAccessor.itemDelegate()->showInformation()) {
1330         m_viewAccessor.itemDelegate()->setShowInformation(info);
1331         emit additionalInfoChanged();
1332     }
1333
1334     const bool showPreview = props.showPreview();
1335     if (showPreview != m_showPreview) {
1336         m_showPreview = showPreview;
1337         const int oldZoomLevel = m_controller->zoomLevel();
1338         emit showPreviewChanged();
1339
1340         // Enabling or disabling the preview might change the icon size of the view.
1341         // As the view does not emit a signal when the icon size has been changed,
1342         // the used zoom level of the controller must be adjusted manually:
1343         updateZoomLevel(oldZoomLevel);
1344     }
1345
1346     if (DolphinSettings::instance().generalSettings()->globalViewProps()) {
1347         // During the lifetime of a DolphinView instance the global view properties
1348         // should not be changed. This allows e. g. to split a view and use different
1349         // view properties for each view.
1350         m_ignoreViewProperties = true;
1351     }
1352 }
1353
1354 void DolphinView::createView()
1355 {
1356     deleteView();
1357
1358     Q_ASSERT(m_viewAccessor.itemView() == 0);
1359     m_viewAccessor.createView(this, m_controller, m_mode);
1360
1361     QAbstractItemView* view = m_viewAccessor.itemView();
1362     Q_ASSERT(view != 0);
1363     view->installEventFilter(this);
1364     view->viewport()->installEventFilter(this);
1365
1366     m_controller->setItemView(view);
1367     connect(m_controller, SIGNAL(selectionChanged()),
1368             this, SLOT(emitDelayedSelectionChangedSignal()));
1369
1370     // When changing the view mode, the selection is lost due to reinstantiating
1371     // a new item view with a custom selection model. Pass the ownership of the
1372     // selection model to DolphinView, so that it can be shared by all item views.
1373     if (m_selectionModel != 0) {
1374         view->setSelectionModel(m_selectionModel);
1375     } else {
1376         m_selectionModel = view->selectionModel();
1377     }
1378     m_selectionModel->setParent(this);
1379
1380     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
1381             this, SLOT(emitContentsMoved()));
1382     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
1383             this, SLOT(emitContentsMoved()));
1384
1385     setFocusProxy(m_viewAccessor.layoutTarget());
1386     m_topLayout->insertWidget(1, m_viewAccessor.layoutTarget());
1387 }
1388
1389 void DolphinView::deleteView()
1390 {
1391     QAbstractItemView* view = m_viewAccessor.itemView();
1392     if (view != 0) {
1393         // It's important to set the keyboard focus to the parent
1394         // before deleting the view: Otherwise when having a split
1395         // view the other view will get the focus and will request
1396         // an activation (see DolphinView::eventFilter()).
1397         setFocusProxy(0);
1398         setFocus();
1399
1400         m_topLayout->removeWidget(view);
1401         view->close();
1402
1403         // disconnect all signal/slots
1404         disconnect(view);
1405         m_controller->disconnect(view);
1406         view->disconnect();
1407         disconnect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
1408                    this, SLOT(emitContentsMoved()));
1409         disconnect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
1410                    this, SLOT(emitContentsMoved()));
1411
1412         m_viewAccessor.deleteView();
1413     }
1414 }
1415
1416 void DolphinView::pasteToUrl(const KUrl& url)
1417 {
1418     addNewFileNames(QApplication::clipboard()->mimeData());
1419     KonqOperations::doPaste(this, url);
1420 }
1421
1422 void DolphinView::updateZoomLevel(int oldZoomLevel)
1423 {
1424     const int newZoomLevel = ZoomLevelInfo::zoomLevelForIconSize(m_viewAccessor.itemView()->iconSize());
1425     if (oldZoomLevel != newZoomLevel) {
1426         m_controller->setZoomLevel(newZoomLevel);
1427         emit zoomLevelChanged(newZoomLevel);
1428     }
1429 }
1430
1431 KUrl::List DolphinView::simplifiedSelectedUrls() const
1432 {
1433     KUrl::List list = selectedUrls();
1434     if (itemsExpandable() ) {
1435         list = KDirModel::simplifiedUrlList(list);
1436     }
1437     return list;
1438 }
1439
1440 QMimeData* DolphinView::selectionMimeData() const
1441 {
1442     const QAbstractItemView* view = m_viewAccessor.itemView();
1443     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
1444     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
1445     return m_viewAccessor.dirModel()->mimeData(selection.indexes());
1446 }
1447
1448 void DolphinView::addNewFileNames(const QMimeData* mimeData)
1449 {
1450     const KUrl::List urls = KUrl::List::fromMimeData(mimeData);
1451     foreach (const KUrl& url, urls) {
1452         m_newFileNames.insert(url.fileName());
1453     }
1454 }
1455
1456 DolphinView::ViewAccessor::ViewAccessor(DolphinSortFilterProxyModel* proxyModel) :
1457     m_iconsView(0),
1458     m_detailsView(0),
1459     m_columnsContainer(0),
1460     m_proxyModel(proxyModel),
1461     m_dragSource(0)
1462 {
1463 }
1464
1465 DolphinView::ViewAccessor::~ViewAccessor()
1466 {
1467     delete m_dragSource;
1468     m_dragSource = 0;
1469 }
1470
1471 void DolphinView::ViewAccessor::createView(QWidget* parent,
1472                                            DolphinController* controller,
1473                                            Mode mode)
1474 {
1475     Q_ASSERT(itemView() == 0);
1476
1477     switch (mode) {
1478     case IconsView:
1479         m_iconsView = new DolphinIconsView(parent, controller, m_proxyModel);
1480         break;
1481
1482     case DetailsView:
1483         m_detailsView = new DolphinDetailsView(parent, controller, m_proxyModel);
1484         break;
1485
1486     case ColumnView:
1487         m_columnsContainer = new DolphinColumnViewContainer(parent, controller);
1488         break;
1489
1490     default:
1491         Q_ASSERT(false);
1492     }
1493 }
1494
1495 void DolphinView::ViewAccessor::deleteView()
1496 {
1497     QAbstractItemView* view = itemView();
1498     if (view != 0) {
1499         if (DragAndDropHelper::instance().isDragSource(view)) {
1500             // The view is a drag source (the feature "Open folders
1501             // during drag operations" is used). Deleting the view
1502             // during an ongoing drag operation is not allowed, so
1503             // this will postponed.
1504             if (m_dragSource != 0) {
1505                 // the old stored view is obviously not the drag source anymore
1506                 m_dragSource->deleteLater();
1507                 m_dragSource = 0;
1508             }
1509             view->hide();
1510             m_dragSource = view;
1511         } else {
1512             view->deleteLater();
1513         }
1514     }
1515
1516     m_iconsView = 0;
1517     m_detailsView = 0;
1518
1519     if (m_columnsContainer != 0) {
1520         m_columnsContainer->deleteLater();
1521     }
1522     m_columnsContainer = 0;
1523 }
1524
1525
1526 void DolphinView::ViewAccessor::prepareUrlChange(const KUrl& url)
1527 {
1528     if (m_columnsContainer != 0) {
1529         m_columnsContainer->showColumn(url);
1530     }
1531
1532     if(!m_detailsViewExpander.isNull()) {
1533         // Stop expanding items in the current folder
1534         m_detailsViewExpander->stop();
1535     }
1536 }
1537
1538 QAbstractItemView* DolphinView::ViewAccessor::itemView() const
1539 {
1540     if (m_iconsView != 0) {
1541         return m_iconsView;
1542     }
1543
1544     if (m_detailsView != 0) {
1545         return m_detailsView;
1546     }
1547
1548     if (m_columnsContainer != 0) {
1549         return m_columnsContainer->activeColumn();
1550     }
1551
1552     return 0;
1553 }
1554
1555 KFileItemDelegate* DolphinView::ViewAccessor::itemDelegate() const
1556 {
1557     return static_cast<KFileItemDelegate*>(itemView()->itemDelegate());
1558 }
1559
1560 QWidget* DolphinView::ViewAccessor::layoutTarget() const
1561 {
1562     if (m_columnsContainer != 0) {
1563         return m_columnsContainer;
1564     }
1565     return itemView();
1566 }
1567
1568 KUrl DolphinView::ViewAccessor::rootUrl() const
1569 {
1570     return (m_columnsContainer != 0) ? m_columnsContainer->rootUrl() : KUrl();
1571 }
1572
1573 bool DolphinView::ViewAccessor::supportsCategorizedSorting() const
1574 {
1575     return m_iconsView != 0;
1576 }
1577
1578 bool DolphinView::ViewAccessor::itemsExpandable() const
1579 {
1580     return (m_detailsView != 0) && m_detailsView->itemsExpandable();
1581 }
1582
1583
1584 QSet<KUrl> DolphinView::ViewAccessor::expandedUrls() const
1585 {
1586     if(m_detailsView != 0) {
1587         return m_detailsView->expandedUrls();
1588     }
1589     else {
1590         return QSet<KUrl>();
1591     }
1592 }
1593
1594 const DolphinDetailsViewExpander* DolphinView::ViewAccessor::setExpandedUrls(const QSet<KUrl>& urlsToExpand)
1595 {
1596     if((m_detailsView != 0) && m_detailsView->itemsExpandable() && !urlsToExpand.isEmpty()) {
1597         m_detailsViewExpander = new DolphinDetailsViewExpander(m_detailsView, urlsToExpand);
1598         return m_detailsViewExpander;
1599     }
1600     else {
1601         return 0;
1602     }
1603 }
1604
1605 bool DolphinView::ViewAccessor::reloadOnAdditionalInfoChange() const
1606 {
1607     // the details view requires no reloading of the directory, as it maps
1608     // the file item delegate info to its columns internally
1609     return m_detailsView != 0;
1610 }
1611
1612 DolphinModel* DolphinView::ViewAccessor::dirModel() const
1613 {
1614     return static_cast<DolphinModel*>(proxyModel()->sourceModel());
1615 }
1616
1617 DolphinSortFilterProxyModel* DolphinView::ViewAccessor::proxyModel() const
1618 {
1619     if (m_columnsContainer != 0) {
1620         return static_cast<DolphinSortFilterProxyModel*>(m_columnsContainer->activeColumn()->model());
1621     }
1622     return m_proxyModel;
1623 }
1624
1625 KDirLister* DolphinView::ViewAccessor::dirLister() const
1626 {
1627     return dirModel()->dirLister();
1628 }
1629
1630 void DolphinView::slotRedirection(const KUrl& oldUrl, const KUrl& newUrl)
1631 {
1632     emit redirection(oldUrl, newUrl);
1633     m_controller->redirectToUrl(newUrl); // #186947
1634 }
1635
1636 void DolphinView::restoreContentsPosition()
1637 {
1638     if (!m_restoredContentsPosition.isNull()) {
1639         setContentsPosition(m_restoredContentsPosition.x(), m_restoredContentsPosition.y());
1640         m_restoredContentsPosition = QPoint();
1641     }
1642 }
1643
1644 #include "dolphinview.moc"