src/views/dolphinview.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006-2009 by Peter Penz <peter.penz@gmx.at>             *
   3  *   Copyright (C) 2006 by Gregor Kališnik <gregor@podnapisi.net>          *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  19  ***************************************************************************/
  20
  21 #include "dolphinview.h"
  22
  23 #include <QAbstractItemView>
  24 #include <QApplication>
  25 #include <QClipboard>
  26 #include <QKeyEvent>
  27 #include <QItemSelection>
  28 #include <QBoxLayout>
  29 #include <QTimer>
  30 #include <QScrollBar>
  31
  32 #include <kactioncollection.h>
  33 #include <kcolorscheme.h>
  34 #include <kdirlister.h>
  35 #include <kiconeffect.h>
  36 #include <kfileitem.h>
  37 #include <klocale.h>
  38 #include <kio/deletejob.h>
  39 #include <kio/netaccess.h>
  40 #include <kio/previewjob.h>
  41 #include <kjob.h>
  42 #include <kmenu.h>
  43 #include <kmessagebox.h>
  44 #include <kmimetyperesolver.h>
  45 #include <konq_fileitemcapabilities.h>
  46 #include <konq_operations.h>
  47 #include <konqmimedata.h>
  48 #include <kstringhandler.h>
  49 #include <ktoggleaction.h>
  50 #include <kurl.h>
  51
  52 #include "additionalinfoaccessor.h"
  53 #include "dolphinmodel.h"
  54 #include "dolphincolumnviewcontainer.h"
  55 #include "dolphinviewcontroller.h"
  56 #include "dolphindetailsview.h"
  57 #include "dolphinfileitemdelegate.h"
  58 #include "dolphinnewmenuobserver.h"
  59 #include "dolphinsortfilterproxymodel.h"
  60 #include "dolphin_detailsmodesettings.h"
  61 #include "dolphiniconsview.h"
  62 #include "dolphin_generalsettings.h"
  63 #include "draganddrophelper.h"
  64 #include "renamedialog.h"
  65 #include "settings/dolphinsettings.h"
  66 #include "viewmodecontroller.h"
  67 #include "viewproperties.h"
  68 #include "zoomlevelinfo.h"
  69 #include "dolphindetailsviewexpander.h"
  70
  71 /**
  72  * Helper function for sorting items with qSort() in
  73  * DolphinView::renameSelectedItems().
  74  */
  75 bool lessThan(const KFileItem& item1, const KFileItem& item2)
  76 {
  77     return KStringHandler::naturalCompare(item1.name(), item2.name()) < 0;
  78 }
  79
  80 DolphinView::DolphinView(QWidget* parent,
  81                          const KUrl& url,
  82                          DolphinSortFilterProxyModel* proxyModel) :
  83     QWidget(parent),
  84     m_active(true),
  85     m_showPreview(false),
  86     m_storedCategorizedSorting(false),
  87     m_tabsForFiles(false),
  88     m_isContextMenuOpen(false),
  89     m_ignoreViewProperties(false),
  90     m_assureVisibleCurrentIndex(false),
  91     m_mode(DolphinView::IconsView),
  92     m_topLayout(0),
  93     m_dolphinViewController(0),
  94     m_viewModeController(0),
  95     m_viewAccessor(proxyModel),
  96     m_selectionChangedTimer(0),
  97     m_rootUrl(),
  98     m_activeItemUrl(),
  99     m_restoredContentsPosition(),
 100     m_createdItemUrl(),
 101     m_selectedItems(),
 102     m_newFileNames()
 103 {
 104     m_topLayout = new QVBoxLayout(this);
 105     m_topLayout->setSpacing(0);
 106     m_topLayout->setMargin(0);
 107
 108     m_dolphinViewController = new DolphinViewController(this);
 109
 110     m_viewModeController = new ViewModeController(this);
 111     m_viewModeController->setUrl(url);
 112
 113     connect(m_viewModeController, SIGNAL(urlChanged(const KUrl&)),
 114             this, SIGNAL(urlChanged(const KUrl&)));
 115
 116     connect(m_dolphinViewController, SIGNAL(requestContextMenu(const QPoint&, const QList<QAction*>&)),
 117             this, SLOT(openContextMenu(const QPoint&, const QList<QAction*>&)));
 118     connect(m_dolphinViewController, SIGNAL(urlsDropped(const KFileItem&, const KUrl&, QDropEvent*)),
 119             this, SLOT(dropUrls(const KFileItem&, const KUrl&, QDropEvent*)));
 120     connect(m_dolphinViewController, SIGNAL(sortingChanged(DolphinView::Sorting)),
 121             this, SLOT(updateSorting(DolphinView::Sorting)));
 122     connect(m_dolphinViewController, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 123             this, SLOT(updateSortOrder(Qt::SortOrder)));
 124     connect(m_dolphinViewController, SIGNAL(sortFoldersFirstChanged(bool)),
 125             this, SLOT(updateSortFoldersFirst(bool)));
 126     connect(m_dolphinViewController, SIGNAL(additionalInfoChanged(const KFileItemDelegate::InformationList&)),
 127             this, SLOT(updateAdditionalInfo(const KFileItemDelegate::InformationList&)));
 128     connect(m_dolphinViewController, SIGNAL(itemTriggered(const KFileItem&)),
 129             this, SLOT(triggerItem(const KFileItem&)));
 130     connect(m_dolphinViewController, SIGNAL(tabRequested(const KUrl&)),
 131             this, SIGNAL(tabRequested(const KUrl&)));
 132     connect(m_dolphinViewController, SIGNAL(activated()),
 133             this, SLOT(activate()));
 134     connect(m_dolphinViewController, SIGNAL(itemEntered(const KFileItem&)),
 135             this, SLOT(showHoverInformation(const KFileItem&)));
 136     connect(m_dolphinViewController, SIGNAL(viewportEntered()),
 137             this, SLOT(clearHoverInformation()));
 138     connect(m_dolphinViewController, SIGNAL(urlChangeRequested(KUrl)),
 139             m_viewModeController, SLOT(setUrl(KUrl)));
 140
 141     KDirLister* dirLister = m_viewAccessor.dirLister();
 142     connect(dirLister, SIGNAL(redirection(KUrl,KUrl)),
 143             this, SLOT(slotRedirection(KUrl,KUrl)));
 144     connect(dirLister, SIGNAL(completed()),
 145             this, SLOT(slotDirListerCompleted()));
 146     connect(dirLister, SIGNAL(refreshItems(const QList<QPair<KFileItem,KFileItem>>&)),
 147             this, SLOT(slotRefreshItems()));
 148
 149     // When a new item has been created by the "Create New..." menu, the item should
 150     // get selected and it must be assured that the item will get visible. As the
 151     // creation is done asynchronously, several signals must be checked:
 152     connect(&DolphinNewMenuObserver::instance(), SIGNAL(itemCreated(const KUrl&)),
 153             this, SLOT(observeCreatedItem(const KUrl&)));
 154
 155     m_selectionChangedTimer = new QTimer(this);
 156     m_selectionChangedTimer->setSingleShot(true);
 157     m_selectionChangedTimer->setInterval(300);
 158     connect(m_selectionChangedTimer, SIGNAL(timeout()),
 159             this, SLOT(emitSelectionChangedSignal()));
 160
 161     applyViewProperties();
 162     m_topLayout->addWidget(m_viewAccessor.layoutTarget());
 163 }
 164
 165 DolphinView::~DolphinView()
 166 {
 167 }
 168
 169 KUrl DolphinView::url() const
 170 {
 171     return m_viewModeController->url();
 172 }
 173
 174 KUrl DolphinView::rootUrl() const
 175 {
 176     const KUrl viewUrl = url();
 177     const KUrl root = m_viewAccessor.rootUrl();
 178     if (root.isEmpty() || !root.isParentOf(viewUrl)) {
 179         return viewUrl;
 180     }
 181     return root;
 182 }
 183
 184 void DolphinView::setActive(bool active)
 185 {
 186     if (active == m_active) {
 187         return;
 188     }
 189
 190     m_active = active;
 191
 192     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 193     if (active) {
 194         emitSelectionChangedSignal();
 195     } else {
 196         color.setAlpha(150);
 197     }
 198
 199     QWidget* viewport = m_viewAccessor.itemView()->viewport();
 200     QPalette palette;
 201     palette.setColor(viewport->backgroundRole(), color);
 202     viewport->setPalette(palette);
 203
 204     update();
 205
 206     if (active) {
 207         m_viewAccessor.itemView()->setFocus();
 208         emit activated();
 209     }
 210
 211     m_viewModeController->indicateActivationChange(active);
 212 }
 213
 214 bool DolphinView::isActive() const
 215 {
 216     return m_active;
 217 }
 218
 219 void DolphinView::setMode(Mode mode)
 220 {
 221     if (mode == m_mode) {
 222         return; // the wished mode is already set
 223     }
 224
 225     const int oldZoomLevel = m_viewModeController->zoomLevel();
 226     m_mode = mode;
 227
 228     // remember the currently selected items, so that they will
 229     // be restored after reloading the directory
 230     m_selectedItems = selectedItems();
 231
 232     deleteView();
 233
 234     const KUrl viewPropsUrl = rootUrl();
 235     ViewProperties props(viewPropsUrl);
 236     props.setViewMode(m_mode);
 237     createView();
 238
 239     // the file item delegate has been recreated, apply the current
 240     // additional information manually
 241     const KFileItemDelegate::InformationList infoList = props.additionalInfo();
 242     m_viewAccessor.itemDelegate()->setShowInformation(infoList);
 243     emit additionalInfoChanged();
 244
 245     // Not all view modes support categorized sorting. Adjust the sorting model
 246     // if changing the view mode results in a change of the categorized sorting
 247     // capabilities.
 248     m_storedCategorizedSorting = props.categorizedSorting();
 249     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 250     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
 251         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 252         emit categorizedSortingChanged();
 253     }
 254
 255     emit modeChanged();
 256
 257     updateZoomLevel(oldZoomLevel);
 258     loadDirectory(viewPropsUrl);
 259 }
 260
 261 DolphinView::Mode DolphinView::mode() const
 262 {
 263     return m_mode;
 264 }
 265
 266 bool DolphinView::showPreview() const
 267 {
 268     return m_showPreview;
 269 }
 270
 271 bool DolphinView::showHiddenFiles() const
 272 {
 273     return m_viewAccessor.dirLister()->showingDotFiles();
 274 }
 275
 276 bool DolphinView::categorizedSorting() const
 277 {
 278     // If all view modes would support categorized sorting, returning
 279     // m_viewAccessor.proxyModel()->isCategorizedModel() would be the way to go. As
 280     // currently only the icons view supports caterized sorting, we remember
 281     // the stored view properties state in m_storedCategorizedSorting and
 282     // return this state. The application takes care to disable the corresponding
 283     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 284     // that this setting is not applied to the current view mode.
 285     return m_storedCategorizedSorting;
 286 }
 287
 288 bool DolphinView::supportsCategorizedSorting() const
 289 {
 290     return m_viewAccessor.supportsCategorizedSorting();
 291 }
 292
 293 bool DolphinView::hasSelection() const
 294 {
 295     const QAbstractItemView* view = m_viewAccessor.itemView();
 296     return (view != 0) && view->selectionModel()->hasSelection();
 297 }
 298
 299 void DolphinView::markUrlsAsSelected(const QList<KUrl>& urls)
 300 {
 301     foreach (const KUrl& url, urls) {
 302         KFileItem item(KFileItem::Unknown, KFileItem::Unknown, url);
 303         m_selectedItems.append(item);
 304     }
 305 }
 306
 307 KFileItemList DolphinView::selectedItems() const
 308 {
 309     KFileItemList itemList;
 310     const QAbstractItemView* view = m_viewAccessor.itemView();
 311     if (view == 0) {
 312         return itemList;
 313     }
 314
 315     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
 316
 317     const QModelIndexList indexList = selection.indexes();
 318     foreach (const QModelIndex &index, indexList) {
 319         KFileItem item = m_viewAccessor.dirModel()->itemForIndex(index);
 320         if (!item.isNull()) {
 321             itemList.append(item);
 322         }
 323     }
 324
 325     return itemList;
 326 }
 327
 328 KUrl::List DolphinView::selectedUrls() const
 329 {
 330     KUrl::List urls;
 331     const KFileItemList list = selectedItems();
 332     foreach (const KFileItem &item, list) {
 333         urls.append(item.url());
 334     }
 335     return urls;
 336 }
 337
 338 int DolphinView::selectedItemsCount() const
 339 {
 340     const QAbstractItemView* view = m_viewAccessor.itemView();
 341     if (view == 0) {
 342         return 0;
 343     }
 344
 345     return view->selectionModel()->selectedIndexes().count();
 346 }
 347
 348 QItemSelectionModel* DolphinView::selectionModel() const
 349 {
 350     return m_viewAccessor.itemView()->selectionModel();
 351 }
 352
 353 void DolphinView::setZoomLevel(int level)
 354 {
 355     if (level < ZoomLevelInfo::minimumLevel()) {
 356         level = ZoomLevelInfo::minimumLevel();
 357     } else if (level > ZoomLevelInfo::maximumLevel()) {
 358         level = ZoomLevelInfo::maximumLevel();
 359     }
 360
 361     if (level != zoomLevel()) {
 362         m_viewModeController->setZoomLevel(level);
 363         emit zoomLevelChanged(level);
 364     }
 365 }
 366
 367 int DolphinView::zoomLevel() const
 368 {
 369     return m_viewModeController->zoomLevel();
 370 }
 371
 372 void DolphinView::setSorting(Sorting sorting)
 373 {
 374     if (sorting != this->sorting()) {
 375         updateSorting(sorting);
 376     }
 377 }
 378
 379 DolphinView::Sorting DolphinView::sorting() const
 380 {
 381     return m_viewAccessor.proxyModel()->sorting();
 382 }
 383
 384 void DolphinView::setSortOrder(Qt::SortOrder order)
 385 {
 386     if (sortOrder() != order) {
 387         updateSortOrder(order);
 388     }
 389 }
 390
 391 Qt::SortOrder DolphinView::sortOrder() const
 392 {
 393     return m_viewAccessor.proxyModel()->sortOrder();
 394 }
 395
 396 void DolphinView::setSortFoldersFirst(bool foldersFirst)
 397 {
 398     if (sortFoldersFirst() != foldersFirst) {
 399         updateSortFoldersFirst(foldersFirst);
 400     }
 401 }
 402
 403 bool DolphinView::sortFoldersFirst() const
 404 {
 405     return m_viewAccessor.proxyModel()->sortFoldersFirst();
 406 }
 407
 408 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 409 {
 410     const KUrl viewPropsUrl = rootUrl();
 411     ViewProperties props(viewPropsUrl);
 412     props.setAdditionalInfo(info);
 413     m_viewAccessor.itemDelegate()->setShowInformation(info);
 414
 415     emit additionalInfoChanged();
 416
 417     if (m_viewAccessor.reloadOnAdditionalInfoChange()) {
 418         loadDirectory(viewPropsUrl);
 419     }
 420 }
 421
 422 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 423 {
 424     return m_viewAccessor.itemDelegate()->showInformation();
 425 }
 426
 427 void DolphinView::reload()
 428 {
 429     QByteArray viewState;
 430     QDataStream saveStream(&viewState, QIODevice::WriteOnly);
 431     saveState(saveStream);
 432     m_selectedItems= selectedItems();
 433
 434     setUrl(url());
 435     loadDirectory(url(), true);
 436
 437     QDataStream restoreStream(viewState);
 438     restoreState(restoreStream);
 439 }
 440
 441 void DolphinView::refresh()
 442 {
 443     m_ignoreViewProperties = false;
 444
 445     const bool oldActivationState = m_active;
 446     const int oldZoomLevel = m_viewModeController->zoomLevel();
 447     m_active = true;
 448
 449     createView();
 450     applyViewProperties();
 451     reload();
 452
 453     setActive(oldActivationState);
 454     updateZoomLevel(oldZoomLevel);
 455 }
 456
 457 void DolphinView::setNameFilter(const QString& nameFilter)
 458 {
 459     m_viewModeController->setNameFilter(nameFilter);
 460 }
 461
 462 void DolphinView::calculateItemCount(int& fileCount,
 463                                      int& folderCount,
 464                                      KIO::filesize_t& totalFileSize) const
 465 {
 466     foreach (const KFileItem& item, m_viewAccessor.dirLister()->items()) {
 467         if (item.isDir()) {
 468             ++folderCount;
 469         } else {
 470             ++fileCount;
 471             totalFileSize += item.size();
 472         }
 473     }
 474 }
 475
 476 QString DolphinView::statusBarText() const
 477 {
 478     QString text;
 479     int folderCount = 0;
 480     int fileCount = 0;
 481     KIO::filesize_t totalFileSize = 0;
 482
 483     if (hasSelection()) {
 484         // give a summary of the status of the selected files
 485         const KFileItemList list = selectedItems();
 486         if (list.isEmpty()) {
 487             // when an item is triggered, it is temporary selected but selectedItems()
 488             // will return an empty list
 489             return text;
 490         }
 491
 492         KFileItemList::const_iterator it = list.begin();
 493         const KFileItemList::const_iterator end = list.end();
 494         while (it != end) {
 495             const KFileItem& item = *it;
 496             if (item.isDir()) {
 497                 ++folderCount;
 498             } else {
 499                 ++fileCount;
 500                 totalFileSize += item.size();
 501             }
 502             ++it;
 503         }
 504
 505         if (folderCount + fileCount == 1) {
 506             // if only one item is selected, show the filename
 507             const QString name = list.first().text();
 508             text = (folderCount == 1) ? i18nc("@info:status", "<filename>%1</filename> selected", name) :
 509                                         i18nc("@info:status", "<filename>%1</filename> selected (%2)",
 510                                               name, KIO::convertSize(totalFileSize));
 511         } else {
 512             // at least 2 items are selected
 513             const QString foldersText = i18ncp("@info:status", "1 Folder selected", "%1 Folders selected", folderCount);
 514             const QString filesText = i18ncp("@info:status", "1 File selected", "%1 Files selected", fileCount);
 515             if ((folderCount > 0) && (fileCount > 0)) {
 516                 text = i18nc("@info:status folders, files (size)", "%1, %2 (%3)",
 517                              foldersText, filesText, KIO::convertSize(totalFileSize));
 518             } else if (fileCount > 0) {
 519                 text = i18nc("@info:status files (size)", "%1 (%2)", filesText, KIO::convertSize(totalFileSize));
 520             } else {
 521                 Q_ASSERT(folderCount > 0);
 522                 text = foldersText;
 523             }
 524         }
 525     } else {
 526         calculateItemCount(fileCount, folderCount, totalFileSize);
 527         text = KIO::itemsSummaryString(fileCount + folderCount,
 528                                        fileCount, folderCount,
 529                                        totalFileSize, true);
 530     }
 531
 532     return text;
 533 }
 534
 535 QList<QAction*> DolphinView::versionControlActions(const KFileItemList& items) const
 536 {
 537     return m_dolphinViewController->versionControlActions(items);
 538 }
 539
 540 void DolphinView::setUrl(const KUrl& url)
 541 {
 542     if (m_viewModeController->url() == url) {
 543         return;
 544     }
 545
 546     // The selection model might change in the case of the column view. Disconnect
 547     // from the current selection model and reconnect later after the URL switch.
 548     QAbstractItemView* view = m_viewAccessor.itemView();
 549     disconnect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
 550                this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
 551
 552     m_newFileNames.clear();
 553
 554     m_viewModeController->setUrl(url); // emits urlChanged, which we forward
 555     m_viewAccessor.prepareUrlChange(url);
 556     applyViewProperties();
 557     loadDirectory(url);
 558
 559     // When changing the URL there is no need to keep the version
 560     // data of the previous URL.
 561     m_viewAccessor.dirModel()->clearVersionData();
 562
 563     emit startedPathLoading(url);
 564
 565     // Reconnect to the (probably) new selection model
 566     view = m_viewAccessor.itemView();
 567     connect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
 568             this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
 569 }
 570
 571 void DolphinView::selectAll()
 572 {
 573     m_viewAccessor.itemView()->selectAll();
 574 }
 575
 576 void DolphinView::invertSelection()
 577 {
 578     QItemSelectionModel* selectionModel = m_viewAccessor.itemView()->selectionModel();
 579     const QAbstractItemModel* itemModel = selectionModel->model();
 580
 581     const QModelIndex topLeft = itemModel->index(0, 0);
 582     const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 583                                                      itemModel->columnCount() - 1);
 584
 585     const QItemSelection selection(topLeft, bottomRight);
 586     selectionModel->select(selection, QItemSelectionModel::Toggle);
 587 }
 588
 589 void DolphinView::clearSelection()
 590 {
 591     m_viewAccessor.itemView()->clearSelection();
 592 }
 593
 594 void DolphinView::renameSelectedItems()
 595 {
 596     KFileItemList items = selectedItems();
 597     const int itemCount = items.count();
 598     if (itemCount < 1) {
 599         return;
 600     }
 601
 602     if (itemCount > 1) {
 603         // More than one item has been selected for renaming. Open
 604         // a rename dialog and rename all items afterwards.
 605         QPointer<RenameDialog> dialog = new RenameDialog(this, items);
 606         if (dialog->exec() == QDialog::Rejected) {
 607             delete dialog;
 608             return;
 609         }
 610
 611         const QString newName = dialog->newName();
 612         if (newName.isEmpty()) {
 613             emit errorMessage(dialog->errorString());
 614             delete dialog;
 615             return;
 616         }
 617         delete dialog;
 618
 619         // the selection would be invalid after renaming the items, so just clear
 620         // it before
 621         clearSelection();
 622
 623         // TODO: check how this can be integrated into KIO::FileUndoManager/KonqOperations
 624         // as one operation instead of n rename operations like it is done now...
 625         Q_ASSERT(newName.contains('#'));
 626
 627         // currently the items are sorted by the selection order, resort
 628         // them by the file name
 629         qSort(items.begin(), items.end(), lessThan);
 630
 631         // iterate through all selected items and rename them...
 632         int index = 1;
 633         foreach (const KFileItem& item, items) {
 634             const KUrl& oldUrl = item.url();
 635             QString number;
 636             number.setNum(index++);
 637
 638             QString name = newName;
 639             name.replace('#', number);
 640
 641             if (oldUrl.fileName() != name) {
 642                 KUrl newUrl = oldUrl;
 643                 newUrl.setFileName(name);
 644                 KonqOperations::rename(this, oldUrl, newUrl);
 645             }
 646         }
 647     } else if (DolphinSettings::instance().generalSettings()->renameInline()) {
 648         Q_ASSERT(itemCount == 1);
 649         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForItem(items.first());
 650         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
 651         m_viewAccessor.itemView()->edit(proxyIndex);
 652     } else {
 653         Q_ASSERT(itemCount == 1);
 654
 655         QPointer<RenameDialog> dialog = new RenameDialog(this, items);
 656         if (dialog->exec() == QDialog::Rejected) {
 657             delete dialog;
 658             return;
 659         }
 660
 661         const QString newName = dialog->newName();
 662         if (newName.isEmpty()) {
 663             emit errorMessage(dialog->errorString());
 664             delete dialog;
 665             return;
 666         }
 667         delete dialog;
 668
 669         const KUrl& oldUrl = items.first().url();
 670         KUrl newUrl = oldUrl;
 671         newUrl.setFileName(newName);
 672         KonqOperations::rename(this, oldUrl, newUrl);
 673     }
 674
 675     // assure that the current index remains visible when KDirLister
 676     // will notify the view about changed items
 677     m_assureVisibleCurrentIndex = true;
 678 }
 679
 680 void DolphinView::trashSelectedItems()
 681 {
 682     const KUrl::List list = simplifiedSelectedUrls();
 683     KonqOperations::del(this, KonqOperations::TRASH, list);
 684 }
 685
 686 void DolphinView::deleteSelectedItems()
 687 {
 688     const KUrl::List list = simplifiedSelectedUrls();
 689     const bool del = KonqOperations::askDeleteConfirmation(list,
 690                      KonqOperations::DEL,
 691                      KonqOperations::DEFAULT_CONFIRMATION,
 692                      this);
 693
 694     if (del) {
 695         KIO::Job* job = KIO::del(list);
 696         connect(job, SIGNAL(result(KJob*)),
 697                 this, SLOT(slotDeleteFileFinished(KJob*)));
 698     }
 699 }
 700
 701 void DolphinView::cutSelectedItems()
 702 {
 703     QMimeData* mimeData = selectionMimeData();
 704     KonqMimeData::addIsCutSelection(mimeData, true);
 705     QApplication::clipboard()->setMimeData(mimeData);
 706 }
 707
 708 void DolphinView::copySelectedItems()
 709 {
 710     QMimeData* mimeData = selectionMimeData();
 711     QApplication::clipboard()->setMimeData(mimeData);
 712 }
 713
 714 void DolphinView::paste()
 715 {
 716     pasteToUrl(url());
 717 }
 718
 719 void DolphinView::pasteIntoFolder()
 720 {
 721     const KFileItemList items = selectedItems();
 722     if ((items.count() == 1) && items.first().isDir()) {
 723         pasteToUrl(items.first().url());
 724     }
 725 }
 726
 727 void DolphinView::setShowPreview(bool show)
 728 {
 729     if (m_showPreview == show) {
 730         return;
 731     }
 732
 733     const KUrl viewPropsUrl = rootUrl();
 734     ViewProperties props(viewPropsUrl);
 735     props.setShowPreview(show);
 736
 737     m_showPreview = show;
 738     const int oldZoomLevel = m_viewModeController->zoomLevel();
 739     emit showPreviewChanged();
 740
 741     // Enabling or disabling the preview might change the icon size of the view.
 742     // As the view does not emit a signal when the icon size has been changed,
 743     // the used zoom level of the controller must be adjusted manually:
 744     updateZoomLevel(oldZoomLevel);
 745 }
 746
 747 void DolphinView::setShowHiddenFiles(bool show)
 748 {
 749     if (m_viewAccessor.dirLister()->showingDotFiles() == show) {
 750         return;
 751     }
 752
 753     const KUrl viewPropsUrl = rootUrl();
 754     ViewProperties props(viewPropsUrl);
 755     props.setShowHiddenFiles(show);
 756
 757     m_viewAccessor.dirLister()->setShowingDotFiles(show);
 758     emit showHiddenFilesChanged();
 759 }
 760
 761 void DolphinView::setCategorizedSorting(bool categorized)
 762 {
 763     if (categorized == categorizedSorting()) {
 764         return;
 765     }
 766
 767     // setCategorizedSorting(true) may only get invoked
 768     // if the view supports categorized sorting
 769     Q_ASSERT(!categorized || supportsCategorizedSorting());
 770
 771     ViewProperties props(rootUrl());
 772     props.setCategorizedSorting(categorized);
 773     props.save();
 774
 775     m_storedCategorizedSorting = categorized;
 776     m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 777
 778     emit categorizedSortingChanged();
 779 }
 780
 781 void DolphinView::toggleSortOrder()
 782 {
 783     const Qt::SortOrder order = (sortOrder() == Qt::AscendingOrder) ?
 784                                 Qt::DescendingOrder :
 785                                 Qt::AscendingOrder;
 786     setSortOrder(order);
 787 }
 788
 789 void DolphinView::toggleSortFoldersFirst()
 790 {
 791     setSortFoldersFirst(!sortFoldersFirst());
 792 }
 793
 794 void DolphinView::toggleAdditionalInfo(QAction* action)
 795 {
 796     const KFileItemDelegate::Information info =
 797         static_cast<KFileItemDelegate::Information>(action->data().toInt());
 798
 799     KFileItemDelegate::InformationList list = additionalInfo();
 800
 801     const bool show = action->isChecked();
 802
 803     const int index = list.indexOf(info);
 804     const bool containsInfo = (index >= 0);
 805     if (show && !containsInfo) {
 806         list.append(info);
 807         setAdditionalInfo(list);
 808     } else if (!show && containsInfo) {
 809         list.removeAt(index);
 810         setAdditionalInfo(list);
 811         Q_ASSERT(list.indexOf(info) < 0);
 812     }
 813 }
 814
 815 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 816 {
 817     QWidget::mouseReleaseEvent(event);
 818     setActive(true);
 819 }
 820
 821 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 822 {
 823     switch (event->type()) {
 824     case QEvent::FocusIn:
 825         if (watched == m_viewAccessor.itemView()) {
 826             m_dolphinViewController->requestActivation();
 827         }
 828         break;
 829
 830     case QEvent::DragEnter:
 831         if (watched == m_viewAccessor.itemView()->viewport()) {
 832             setActive(true);
 833         }
 834         break;
 835
 836     case QEvent::KeyPress:
 837         if (watched == m_viewAccessor.itemView()) {
 838             // clear the selection when Escape has been pressed
 839             QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
 840             if (keyEvent->key() == Qt::Key_Escape) {
 841                 clearSelection();
 842             }
 843         }
 844         break;
 845
 846     case QEvent::Wheel:
 847         if (watched == m_viewAccessor.itemView()->viewport()) {
 848             // Ctrl+wheel events should cause icon zooming, but not if the left mouse button is pressed
 849             // (the user is probably trying to scroll during a selection in that case)
 850             QWheelEvent* wheelEvent = static_cast<QWheelEvent*>(event);
 851             if (wheelEvent->modifiers() & Qt::ControlModifier && !(wheelEvent->buttons() & Qt::LeftButton)) {
 852                 const int delta = wheelEvent->delta();
 853                 const int level = zoomLevel();
 854                 if (delta > 0) {
 855                     setZoomLevel(level + 1);
 856                 } else if (delta < 0) {
 857                     setZoomLevel(level - 1);
 858                 }
 859                 return true;
 860             }
 861         }
 862         break;
 863
 864     default:
 865         break;
 866     }
 867
 868     return QWidget::eventFilter(watched, event);
 869 }
 870
 871 void DolphinView::activate()
 872 {
 873     setActive(true);
 874 }
 875
 876 void DolphinView::triggerItem(const KFileItem& item)
 877 {
 878     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 879     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 880         // items are selected by the user, hence don't trigger the
 881         // item specified by 'index'
 882         return;
 883     }
 884
 885     // TODO: the m_isContextMenuOpen check is a workaround for Qt-issue 207192
 886     if (item.isNull() || m_isContextMenuOpen) {
 887         return;
 888     }
 889
 890     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 891 }
 892
 893 void DolphinView::slotSelectionChanged(const QItemSelection& selected, const QItemSelection& deselected)
 894 {
 895     const int count = selectedItemsCount();
 896     const bool selectionStateChanged = ((count >  0) && (selected.count() == count)) ||
 897                                        ((count == 0) && !deselected.isEmpty());
 898
 899     // If nothing has been selected before and something got selected (or if something
 900     // was selected before and now nothing is selected) the selectionChangedSignal must
 901     // be emitted asynchronously as fast as possible to update the edit-actions.
 902     m_selectionChangedTimer->setInterval(selectionStateChanged ? 0 : 300);
 903     m_selectionChangedTimer->start();
 904 }
 905
 906 void DolphinView::emitSelectionChangedSignal()
 907 {
 908     emit selectionChanged(DolphinView::selectedItems());
 909 }
 910
 911 void DolphinView::openContextMenu(const QPoint& pos,
 912                                   const QList<QAction*>& customActions)
 913 {
 914     KFileItem item;
 915     const QModelIndex index = m_viewAccessor.itemView()->indexAt(pos);
 916     if (index.isValid() && (index.column() == DolphinModel::Name)) {
 917         const QModelIndex dolphinModelIndex = m_viewAccessor.proxyModel()->mapToSource(index);
 918         item = m_viewAccessor.dirModel()->itemForIndex(dolphinModelIndex);
 919     }
 920
 921     m_isContextMenuOpen = true; // TODO: workaround for Qt-issue 207192
 922     emit requestContextMenu(item, url(), customActions);
 923     m_isContextMenuOpen = false;
 924 }
 925
 926 void DolphinView::dropUrls(const KFileItem& destItem,
 927                            const KUrl& destPath,
 928                            QDropEvent* event)
 929 {
 930     addNewFileNames(event->mimeData());
 931     DragAndDropHelper::instance().dropUrls(destItem, destPath, event, this);
 932 }
 933
 934 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 935 {
 936     ViewProperties props(rootUrl());
 937     props.setSorting(sorting);
 938
 939     m_viewAccessor.proxyModel()->setSorting(sorting);
 940
 941     emit sortingChanged(sorting);
 942 }
 943
 944 void DolphinView::updateSortOrder(Qt::SortOrder order)
 945 {
 946     ViewProperties props(rootUrl());
 947     props.setSortOrder(order);
 948
 949     m_viewAccessor.proxyModel()->setSortOrder(order);
 950
 951     emit sortOrderChanged(order);
 952 }
 953
 954 void DolphinView::updateSortFoldersFirst(bool foldersFirst)
 955 {
 956     ViewProperties props(rootUrl());
 957     props.setSortFoldersFirst(foldersFirst);
 958
 959     m_viewAccessor.proxyModel()->setSortFoldersFirst(foldersFirst);
 960
 961     emit sortFoldersFirstChanged(foldersFirst);
 962 }
 963
 964 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 965 {
 966     ViewProperties props(rootUrl());
 967     props.setAdditionalInfo(info);
 968     props.save();
 969
 970     m_viewAccessor.itemDelegate()->setShowInformation(info);
 971
 972     emit additionalInfoChanged();
 973 }
 974
 975 void DolphinView::updateAdditionalInfoActions(KActionCollection* collection)
 976 {
 977     const AdditionalInfoAccessor& infoAccessor = AdditionalInfoAccessor::instance();
 978
 979     const KFileItemDelegate::InformationList checkedInfo = m_viewAccessor.itemDelegate()->showInformation();
 980     const KFileItemDelegate::InformationList infoKeys = infoAccessor.keys();
 981
 982     const bool enable = (m_mode == DolphinView::DetailsView) ||
 983                         (m_mode == DolphinView::IconsView);
 984
 985     foreach (const KFileItemDelegate::Information& info, infoKeys) {
 986         const QString name = infoAccessor.actionCollectionName(info, AdditionalInfoAccessor::AdditionalInfoType);
 987         QAction* action = collection->action(name);
 988         Q_ASSERT(action != 0);
 989         action->setEnabled(enable);
 990         action->setChecked(checkedInfo.contains(info));
 991     }
 992 }
 993
 994 QPair<bool, QString> DolphinView::pasteInfo() const
 995 {
 996     return KonqOperations::pasteInfo(url());
 997 }
 998
 999 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
1000 {
1001     m_tabsForFiles = tabsForFiles;
1002 }
1003
1004 bool DolphinView::isTabsForFilesEnabled() const
1005 {
1006     return m_tabsForFiles;
1007 }
1008
1009 bool DolphinView::itemsExpandable() const
1010 {
1011     return m_viewAccessor.itemsExpandable();
1012 }
1013
1014 void DolphinView::restoreState(QDataStream& stream)
1015 {
1016     // current item
1017     stream >> m_activeItemUrl;
1018
1019     // view position
1020     stream >> m_restoredContentsPosition;
1021
1022     // expanded folders (only relevant for the details view - will be ignored by the view in other view modes)
1023     QSet<KUrl> urlsToExpand;
1024     stream >> urlsToExpand;
1025     const DolphinDetailsViewExpander* expander = m_viewAccessor.setExpandedUrls(urlsToExpand);
1026     if (expander != 0) {
1027         m_expanderActive = true;
1028         connect (expander, SIGNAL(completed()), this, SLOT(slotLoadingCompleted()));
1029     }
1030     else {
1031         m_expanderActive = false;
1032     }
1033 }
1034
1035 void DolphinView::saveState(QDataStream& stream)
1036 {
1037     // current item
1038     KFileItem currentItem;
1039     const QAbstractItemView* view = m_viewAccessor.itemView();
1040
1041     if (view != 0) {
1042         const QModelIndex proxyIndex = view->currentIndex();
1043         const QModelIndex dirModelIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
1044         currentItem = m_viewAccessor.dirModel()->itemForIndex(dirModelIndex);
1045     }
1046
1047     KUrl currentUrl;
1048     if (!currentItem.isNull()) {
1049         currentUrl = currentItem.url();
1050     }
1051
1052     stream << currentUrl;
1053
1054     // view position
1055     const int x = view->horizontalScrollBar()->value();
1056     const int y = view->verticalScrollBar()->value();
1057     stream << QPoint(x, y);
1058
1059     // expanded folders (only relevant for the details view - the set will be empty in other view modes)
1060     stream << m_viewAccessor.expandedUrls();
1061 }
1062
1063 void DolphinView::observeCreatedItem(const KUrl& url)
1064 {
1065     m_createdItemUrl = url;
1066     connect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
1067             this, SLOT(selectAndScrollToCreatedItem()));
1068 }
1069
1070 void DolphinView::selectAndScrollToCreatedItem()
1071 {
1072     const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_createdItemUrl);
1073     if (dirIndex.isValid()) {
1074         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1075         m_viewAccessor.itemView()->setCurrentIndex(proxyIndex);
1076     }
1077
1078     disconnect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
1079                this, SLOT(selectAndScrollToCreatedItem()));
1080     m_createdItemUrl = KUrl();
1081 }
1082
1083 void DolphinView::showHoverInformation(const KFileItem& item)
1084 {
1085     emit requestItemInfo(item);
1086 }
1087
1088 void DolphinView::clearHoverInformation()
1089 {
1090     emit requestItemInfo(KFileItem());
1091 }
1092
1093 void DolphinView::slotDeleteFileFinished(KJob* job)
1094 {
1095     if (job->error() == 0) {
1096         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1097     } else if (job->error() != KIO::ERR_USER_CANCELED) {
1098         emit errorMessage(job->errorString());
1099     }
1100 }
1101
1102 void DolphinView::slotDirListerCompleted()
1103 {
1104     if (!m_expanderActive) {
1105         slotLoadingCompleted();
1106     }
1107
1108     if (!m_newFileNames.isEmpty()) {
1109         // select all newly added items created by a paste operation or
1110         // a drag & drop operation, and clear the previous selection
1111         m_viewAccessor.itemView()->clearSelection();
1112         const int rowCount = m_viewAccessor.proxyModel()->rowCount();
1113         QItemSelection selection;
1114         for (int row = 0; row < rowCount; ++row) {
1115             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->index(row, 0);
1116             const QModelIndex dirIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
1117             const KUrl url = m_viewAccessor.dirModel()->itemForIndex(dirIndex).url();
1118             if (m_newFileNames.contains(url.fileName())) {
1119                 selection.merge(QItemSelection(proxyIndex, proxyIndex), QItemSelectionModel::Select);
1120             }
1121         }
1122         m_viewAccessor.itemView()->selectionModel()->select(selection, QItemSelectionModel::Select);
1123
1124         m_newFileNames.clear();
1125     }
1126 }
1127
1128 void DolphinView::slotLoadingCompleted()
1129 {
1130     m_expanderActive = false;
1131
1132     if (!m_activeItemUrl.isEmpty()) {
1133         // assure that the current item remains visible
1134         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_activeItemUrl);
1135         if (dirIndex.isValid()) {
1136             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1137             QAbstractItemView* view = m_viewAccessor.itemView();
1138             const bool clearSelection = !hasSelection();
1139             view->setCurrentIndex(proxyIndex);
1140             if (clearSelection) {
1141                 view->clearSelection();
1142             }
1143             m_activeItemUrl.clear();
1144         }
1145     }
1146
1147     if (!m_selectedItems.isEmpty()) {
1148         const KUrl& baseUrl = url();
1149         KUrl url;
1150         QItemSelection newSelection;
1151         foreach(const KFileItem& item, m_selectedItems) {
1152             url = item.url().upUrl();
1153             if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
1154                 QModelIndex index = m_viewAccessor.proxyModel()->mapFromSource(m_viewAccessor.dirModel()->indexForItem(item));
1155                 newSelection.select(index, index);
1156             }
1157         }
1158         m_viewAccessor.itemView()->selectionModel()->select(newSelection,
1159                                                             QItemSelectionModel::ClearAndSelect
1160                                                             | QItemSelectionModel::Current);
1161         m_selectedItems.clear();
1162     }
1163
1164     // Restore the contents position. This has to be done using a Qt::QueuedConnection
1165     // because the view might not be in its final state yet.
1166     QMetaObject::invokeMethod(this, "restoreContentsPosition", Qt::QueuedConnection);
1167 }
1168
1169 void DolphinView::slotRefreshItems()
1170 {
1171     if (m_assureVisibleCurrentIndex) {
1172         m_assureVisibleCurrentIndex = false;
1173         m_viewAccessor.itemView()->scrollTo(m_viewAccessor.itemView()->currentIndex());
1174     }
1175 }
1176
1177 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1178 {
1179     if (!url.isValid()) {
1180         const QString location(url.pathOrUrl());
1181         if (location.isEmpty()) {
1182             emit errorMessage(i18nc("@info:status", "The location is empty."));
1183         } else {
1184             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1185         }
1186         return;
1187     }
1188
1189     KDirLister* dirLister = m_viewAccessor.dirLister();
1190     dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
1191 }
1192
1193 void DolphinView::applyViewProperties()
1194 {
1195     if (m_ignoreViewProperties) {
1196         return;
1197     }
1198
1199     const ViewProperties props(rootUrl());
1200
1201     const Mode mode = props.viewMode();
1202     if (m_mode != mode) {
1203         const int oldZoomLevel = m_viewModeController->zoomLevel();
1204
1205         m_mode = mode;
1206         createView();
1207         emit modeChanged();
1208
1209         updateZoomLevel(oldZoomLevel);
1210     }
1211     if (m_viewAccessor.itemView() == 0) {
1212         createView();
1213     }
1214     Q_ASSERT(m_viewAccessor.itemView() != 0);
1215     Q_ASSERT(m_viewAccessor.itemDelegate() != 0);
1216
1217     const bool showHiddenFiles = props.showHiddenFiles();
1218     if (showHiddenFiles != m_viewAccessor.dirLister()->showingDotFiles()) {
1219         m_viewAccessor.dirLister()->setShowingDotFiles(showHiddenFiles);
1220         emit showHiddenFilesChanged();
1221     }
1222
1223     m_storedCategorizedSorting = props.categorizedSorting();
1224     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1225     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
1226         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
1227         emit categorizedSortingChanged();
1228     }
1229
1230     const DolphinView::Sorting sorting = props.sorting();
1231     if (sorting != m_viewAccessor.proxyModel()->sorting()) {
1232         m_viewAccessor.proxyModel()->setSorting(sorting);
1233         emit sortingChanged(sorting);
1234     }
1235
1236     const Qt::SortOrder sortOrder = props.sortOrder();
1237     if (sortOrder != m_viewAccessor.proxyModel()->sortOrder()) {
1238         m_viewAccessor.proxyModel()->setSortOrder(sortOrder);
1239         emit sortOrderChanged(sortOrder);
1240     }
1241
1242     const bool sortFoldersFirst = props.sortFoldersFirst();
1243     if (sortFoldersFirst != m_viewAccessor.proxyModel()->sortFoldersFirst()) {
1244         m_viewAccessor.proxyModel()->setSortFoldersFirst(sortFoldersFirst);
1245         emit sortFoldersFirstChanged(sortFoldersFirst);
1246     }
1247
1248     KFileItemDelegate::InformationList info = props.additionalInfo();
1249     if (info != m_viewAccessor.itemDelegate()->showInformation()) {
1250         m_viewAccessor.itemDelegate()->setShowInformation(info);
1251         emit additionalInfoChanged();
1252     }
1253
1254     const bool showPreview = props.showPreview();
1255     if (showPreview != m_showPreview) {
1256         m_showPreview = showPreview;
1257         const int oldZoomLevel = m_viewModeController->zoomLevel();
1258         emit showPreviewChanged();
1259
1260         // Enabling or disabling the preview might change the icon size of the view.
1261         // As the view does not emit a signal when the icon size has been changed,
1262         // the used zoom level of the controller must be adjusted manually:
1263         updateZoomLevel(oldZoomLevel);
1264     }
1265
1266     if (DolphinSettings::instance().generalSettings()->globalViewProps()) {
1267         // During the lifetime of a DolphinView instance the global view properties
1268         // should not be changed. This allows e. g. to split a view and use different
1269         // view properties for each view.
1270         m_ignoreViewProperties = true;
1271     }
1272 }
1273
1274 void DolphinView::createView()
1275 {
1276     QAbstractItemView* view = m_viewAccessor.itemView();
1277     if ((view != 0) && (view->selectionModel() != 0)) {
1278         disconnect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
1279                    this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
1280     }
1281
1282     deleteView();
1283
1284     Q_ASSERT(m_viewAccessor.itemView() == 0);
1285     m_viewAccessor.createView(this, m_dolphinViewController, m_viewModeController, m_mode);
1286
1287     view = m_viewAccessor.itemView();
1288     Q_ASSERT(view != 0);
1289     view->installEventFilter(this);
1290     view->viewport()->installEventFilter(this);
1291
1292     m_dolphinViewController->setItemView(view);
1293
1294     const int zoomLevel = ZoomLevelInfo::zoomLevelForIconSize(view->iconSize());
1295     m_viewModeController->setZoomLevel(zoomLevel);
1296
1297     connect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
1298             this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
1299
1300     setFocusProxy(m_viewAccessor.layoutTarget());
1301     m_topLayout->insertWidget(1, m_viewAccessor.layoutTarget());
1302 }
1303
1304 void DolphinView::deleteView()
1305 {
1306     QAbstractItemView* view = m_viewAccessor.itemView();
1307     if (view != 0) {
1308         // It's important to set the keyboard focus to the parent
1309         // before deleting the view: Otherwise when having a split
1310         // view the other view will get the focus and will request
1311         // an activation (see DolphinView::eventFilter()).
1312         setFocusProxy(0);
1313         setFocus();
1314
1315         m_topLayout->removeWidget(view);
1316         view->close();
1317
1318         // disconnect all signal/slots
1319         disconnect(view);
1320         m_viewModeController->disconnect(view);
1321         view->disconnect();
1322
1323         m_viewAccessor.deleteView();
1324     }
1325 }
1326
1327 void DolphinView::pasteToUrl(const KUrl& url)
1328 {
1329     addNewFileNames(QApplication::clipboard()->mimeData());
1330     KonqOperations::doPaste(this, url);
1331 }
1332
1333 void DolphinView::updateZoomLevel(int oldZoomLevel)
1334 {
1335     const int newZoomLevel = ZoomLevelInfo::zoomLevelForIconSize(m_viewAccessor.itemView()->iconSize());
1336     if (oldZoomLevel != newZoomLevel) {
1337         m_viewModeController->setZoomLevel(newZoomLevel);
1338         emit zoomLevelChanged(newZoomLevel);
1339     }
1340 }
1341
1342 KUrl::List DolphinView::simplifiedSelectedUrls() const
1343 {
1344     KUrl::List list = selectedUrls();
1345     if (itemsExpandable() ) {
1346         list = KDirModel::simplifiedUrlList(list);
1347     }
1348     return list;
1349 }
1350
1351 QMimeData* DolphinView::selectionMimeData() const
1352 {
1353     const QAbstractItemView* view = m_viewAccessor.itemView();
1354     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
1355     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
1356     return m_viewAccessor.dirModel()->mimeData(selection.indexes());
1357 }
1358
1359 void DolphinView::addNewFileNames(const QMimeData* mimeData)
1360 {
1361     const KUrl::List urls = KUrl::List::fromMimeData(mimeData);
1362     foreach (const KUrl& url, urls) {
1363         m_newFileNames.insert(url.fileName());
1364     }
1365 }
1366
1367 DolphinView::ViewAccessor::ViewAccessor(DolphinSortFilterProxyModel* proxyModel) :
1368     m_iconsView(0),
1369     m_detailsView(0),
1370     m_columnsContainer(0),
1371     m_proxyModel(proxyModel),
1372     m_dragSource(0)
1373 {
1374 }
1375
1376 DolphinView::ViewAccessor::~ViewAccessor()
1377 {
1378     delete m_dragSource;
1379     m_dragSource = 0;
1380 }
1381
1382 void DolphinView::ViewAccessor::createView(QWidget* parent,
1383                                            DolphinViewController* dolphinViewController,
1384                                            const ViewModeController* viewModeController,
1385                                            Mode mode)
1386 {
1387     Q_ASSERT(itemView() == 0);
1388
1389     switch (mode) {
1390     case IconsView:
1391         m_iconsView = new DolphinIconsView(parent,
1392                                            dolphinViewController,
1393                                            viewModeController,
1394                                            m_proxyModel);
1395         break;
1396
1397     case DetailsView:
1398         m_detailsView = new DolphinDetailsView(parent,
1399                                                dolphinViewController,
1400                                                viewModeController,
1401                                                m_proxyModel);
1402         break;
1403
1404     case ColumnView:
1405         m_columnsContainer = new DolphinColumnViewContainer(parent,
1406                                                             dolphinViewController,
1407                                                             viewModeController);
1408         break;
1409
1410     default:
1411         Q_ASSERT(false);
1412     }
1413 }
1414
1415 void DolphinView::ViewAccessor::deleteView()
1416 {
1417     QAbstractItemView* view = itemView();
1418     if (view != 0) {
1419         if (DragAndDropHelper::instance().isDragSource(view)) {
1420             // The view is a drag source (the feature "Open folders
1421             // during drag operations" is used). Deleting the view
1422             // during an ongoing drag operation is not allowed, so
1423             // this will postponed.
1424             if (m_dragSource != 0) {
1425                 // the old stored view is obviously not the drag source anymore
1426                 m_dragSource->deleteLater();
1427                 m_dragSource = 0;
1428             }
1429             view->hide();
1430             m_dragSource = view;
1431         } else {
1432             view->deleteLater();
1433         }
1434     }
1435
1436     m_iconsView = 0;
1437     m_detailsView = 0;
1438
1439     if (m_columnsContainer != 0) {
1440         m_columnsContainer->deleteLater();
1441     }
1442     m_columnsContainer = 0;
1443 }
1444
1445
1446 void DolphinView::ViewAccessor::prepareUrlChange(const KUrl& url)
1447 {
1448     if (m_columnsContainer != 0) {
1449         m_columnsContainer->showColumn(url);
1450     }
1451 }
1452
1453 QAbstractItemView* DolphinView::ViewAccessor::itemView() const
1454 {
1455     if (m_iconsView != 0) {
1456         return m_iconsView;
1457     }
1458
1459     if (m_detailsView != 0) {
1460         return m_detailsView;
1461     }
1462
1463     if (m_columnsContainer != 0) {
1464         return m_columnsContainer->activeColumn();
1465     }
1466
1467     return 0;
1468 }
1469
1470 KFileItemDelegate* DolphinView::ViewAccessor::itemDelegate() const
1471 {
1472     return static_cast<KFileItemDelegate*>(itemView()->itemDelegate());
1473 }
1474
1475 QWidget* DolphinView::ViewAccessor::layoutTarget() const
1476 {
1477     if (m_columnsContainer != 0) {
1478         return m_columnsContainer;
1479     }
1480     return itemView();
1481 }
1482
1483 KUrl DolphinView::ViewAccessor::rootUrl() const
1484 {
1485     return (m_columnsContainer != 0) ? m_columnsContainer->rootUrl() : KUrl();
1486 }
1487
1488 bool DolphinView::ViewAccessor::supportsCategorizedSorting() const
1489 {
1490     return m_iconsView != 0;
1491 }
1492
1493 bool DolphinView::ViewAccessor::itemsExpandable() const
1494 {
1495     return (m_detailsView != 0) && m_detailsView->itemsExpandable();
1496 }
1497
1498
1499 QSet<KUrl> DolphinView::ViewAccessor::expandedUrls() const
1500 {
1501     if (m_detailsView != 0) {
1502         return m_detailsView->expandedUrls();
1503     }
1504
1505     return QSet<KUrl>();
1506 }
1507
1508 const DolphinDetailsViewExpander* DolphinView::ViewAccessor::setExpandedUrls(const QSet<KUrl>& urlsToExpand)
1509 {
1510     if ((m_detailsView != 0) && m_detailsView->itemsExpandable() && !urlsToExpand.isEmpty()) {
1511         // Check if another expander is already active and stop it if necessary.
1512         if(!m_detailsViewExpander.isNull()) {
1513             m_detailsViewExpander->stop();
1514         }
1515
1516         m_detailsViewExpander = new DolphinDetailsViewExpander(m_detailsView, urlsToExpand);
1517         return m_detailsViewExpander;
1518     }
1519     else {
1520         return 0;
1521     }
1522 }
1523
1524 bool DolphinView::ViewAccessor::reloadOnAdditionalInfoChange() const
1525 {
1526     // the details view requires no reloading of the directory, as it maps
1527     // the file item delegate info to its columns internally
1528     return m_detailsView != 0;
1529 }
1530
1531 DolphinModel* DolphinView::ViewAccessor::dirModel() const
1532 {
1533     return static_cast<DolphinModel*>(proxyModel()->sourceModel());
1534 }
1535
1536 DolphinSortFilterProxyModel* DolphinView::ViewAccessor::proxyModel() const
1537 {
1538     if (m_columnsContainer != 0) {
1539         return static_cast<DolphinSortFilterProxyModel*>(m_columnsContainer->activeColumn()->model());
1540     }
1541     return m_proxyModel;
1542 }
1543
1544 KDirLister* DolphinView::ViewAccessor::dirLister() const
1545 {
1546     return dirModel()->dirLister();
1547 }
1548
1549 void DolphinView::slotRedirection(const KUrl& oldUrl, const KUrl& newUrl)
1550 {
1551     if (oldUrl.equals(url(), KUrl::CompareWithoutTrailingSlash)) {
1552         emit redirection(oldUrl, newUrl);
1553         m_viewModeController->redirectToUrl(newUrl); // #186947
1554     }
1555 }
1556
1557 void DolphinView::restoreContentsPosition()
1558 {
1559     if (!m_restoredContentsPosition.isNull()) {
1560         const int x = m_restoredContentsPosition.x();
1561         const int y = m_restoredContentsPosition.y();
1562         m_restoredContentsPosition = QPoint();
1563
1564         QAbstractItemView* view = m_viewAccessor.itemView();
1565         Q_ASSERT(view != 0);
1566         view->horizontalScrollBar()->setValue(x);
1567         view->verticalScrollBar()->setValue(y);
1568     }
1569 }
1570
1571 #include "dolphinview.moc"