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