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