src/views/dolphinview.cpp

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