src/dolphinview.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006 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 "folderexpander.h"
  64 #include "renamedialog.h"
  65 #include "settings/dolphinsettings.h"
  66 #include "versioncontrolobserver.h"
  67 #include "viewproperties.h"
  68 #include "zoomlevelinfo.h"
  69
  70 /**
  71  * Helper function for sorting items with qSort() in
  72  * DolphinView::renameSelectedItems().
  73  */
  74 bool lessThan(const KFileItem& item1, const KFileItem& item2)
  75 {
  76     return KStringHandler::naturalCompare(item1.name(), item2.name()) < 0;
  77 }
  78
  79 DolphinView::DolphinView(QWidget* parent,
  80                          const KUrl& url,
  81                          DolphinSortFilterProxyModel* proxyModel) :
  82     QWidget(parent),
  83     m_active(true),
  84     m_showPreview(false),
  85     m_loadingDirectory(false),
  86     m_storedCategorizedSorting(false),
  87     m_tabsForFiles(false),
  88     m_isContextMenuOpen(false),
  89     m_ignoreViewProperties(false),
  90     m_assureVisibleCurrentIndex(false),
  91     m_mode(DolphinView::IconsView),
  92     m_topLayout(0),
  93     m_controller(0),
  94     m_viewAccessor(proxyModel),
  95     m_selectionModel(0),
  96     m_selectionChangedTimer(0),
  97     m_versionControlObserver(0),
  98     m_rootUrl(),
  99     m_activeItemUrl(),
 100     m_createdItemUrl(),
 101     m_selectedItems(),
 102     m_newFileNames(),
 103     m_expandedDragSource(0)
 104 {
 105     m_topLayout = new QVBoxLayout(this);
 106     m_topLayout->setSpacing(0);
 107     m_topLayout->setMargin(0);
 108
 109     m_controller = new DolphinController(this);
 110     m_controller->setUrl(url);
 111
 112     connect(m_controller, SIGNAL(urlChanged(const KUrl&)),
 113             this, SIGNAL(urlChanged(const KUrl&)));
 114     connect(m_controller, SIGNAL(requestUrlChange(const KUrl&)),
 115             this, SLOT(slotRequestUrlChange(const KUrl&)));
 116
 117     connect(m_controller, SIGNAL(requestContextMenu(const QPoint&, const QList<QAction*>&)),
 118             this, SLOT(openContextMenu(const QPoint&, const QList<QAction*>&)));
 119     connect(m_controller, SIGNAL(urlsDropped(const KFileItem&, const KUrl&, QDropEvent*)),
 120             this, SLOT(dropUrls(const KFileItem&, const KUrl&, QDropEvent*)));
 121     connect(m_controller, SIGNAL(sortingChanged(DolphinView::Sorting)),
 122             this, SLOT(updateSorting(DolphinView::Sorting)));
 123     connect(m_controller, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 124             this, SLOT(updateSortOrder(Qt::SortOrder)));
 125     connect(m_controller, SIGNAL(sortFoldersFirstChanged(bool)),
 126             this, SLOT(updateSortFoldersFirst(bool)));
 127     connect(m_controller, SIGNAL(additionalInfoChanged(const KFileItemDelegate::InformationList&)),
 128             this, SLOT(updateAdditionalInfo(const KFileItemDelegate::InformationList&)));
 129     connect(m_controller, SIGNAL(itemTriggered(const KFileItem&)),
 130             this, SLOT(triggerItem(const KFileItem&)));
 131     connect(m_controller, SIGNAL(tabRequested(const KUrl&)),
 132             this, SIGNAL(tabRequested(const KUrl&)));
 133     connect(m_controller, SIGNAL(activated()),
 134             this, SLOT(activate()));
 135     connect(m_controller, SIGNAL(itemEntered(const KFileItem&)),
 136             this, SLOT(showHoverInformation(const KFileItem&)));
 137     connect(m_controller, SIGNAL(viewportEntered()),
 138             this, SLOT(clearHoverInformation()));
 139
 140     KDirLister* dirLister = m_viewAccessor.dirLister();
 141     connect(dirLister, SIGNAL(redirection(KUrl, KUrl)),
 142             this, SIGNAL(redirection(KUrl, KUrl)));
 143     connect(dirLister, SIGNAL(completed()),
 144             this, SLOT(slotDirListerCompleted()));
 145     connect(dirLister, SIGNAL(refreshItems(const QList<QPair<KFileItem,KFileItem>>&)),
 146             this, SLOT(slotRefreshItems()));
 147
 148     // When a new item has been created by the "Create New..." menu, the item should
 149     // get selected and it must be assured that the item will get visible. As the
 150     // creation is done asynchronously, several signals must be checked:
 151     connect(&DolphinNewMenuObserver::instance(), SIGNAL(itemCreated(const KUrl&)),
 152             this, SLOT(observeCreatedItem(const KUrl&)));
 153
 154     m_selectionChangedTimer = new QTimer(this);
 155     m_selectionChangedTimer->setSingleShot(true);
 156     m_selectionChangedTimer->setInterval(300);
 157     connect(m_selectionChangedTimer, SIGNAL(timeout()),
 158             this, SLOT(emitSelectionChangedSignal()));
 159
 160     applyViewProperties();
 161     m_topLayout->addWidget(m_viewAccessor.itemView());
 162 }
 163
 164 DolphinView::~DolphinView()
 165 {
 166     delete m_expandedDragSource;
 167     m_expandedDragSource = 0;
 168 }
 169
 170 const KUrl& DolphinView::url() const
 171 {
 172     return m_controller->url();
 173 }
 174
 175 KUrl DolphinView::rootUrl() const
 176 {
 177     const KUrl viewUrl = url();
 178     const KUrl root = m_viewAccessor.rootUrl();
 179     if (root.isEmpty() || !root.isParentOf(viewUrl)) {
 180         return viewUrl;
 181     }
 182     return root;
 183 }
 184
 185 void DolphinView::setActive(bool active)
 186 {
 187     if (active == m_active) {
 188         return;
 189     }
 190
 191     m_active = active;
 192
 193     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 194     if (active) {
 195         emitSelectionChangedSignal();
 196     } else {
 197         color.setAlpha(150);
 198     }
 199
 200     QWidget* viewport = m_viewAccessor.itemView()->viewport();
 201     QPalette palette;
 202     palette.setColor(viewport->backgroundRole(), color);
 203     viewport->setPalette(palette);
 204
 205     update();
 206
 207     if (active) {
 208         m_viewAccessor.itemView()->setFocus();
 209         emit activated();
 210     }
 211
 212     m_controller->indicateActivationChange(active);
 213 }
 214
 215 bool DolphinView::isActive() const
 216 {
 217     return m_active;
 218 }
 219
 220 void DolphinView::setMode(Mode mode)
 221 {
 222     if (mode == m_mode) {
 223         return; // the wished mode is already set
 224     }
 225
 226     const int oldZoomLevel = m_controller->zoomLevel();
 227     m_mode = mode;
 228
 229     deleteView();
 230
 231     const KUrl viewPropsUrl = rootUrl();
 232     ViewProperties props(viewPropsUrl);
 233     props.setViewMode(m_mode);
 234     createView();
 235
 236     // the file item delegate has been recreated, apply the current
 237     // additional information manually
 238     const KFileItemDelegate::InformationList infoList = props.additionalInfo();
 239     m_viewAccessor.itemDelegate()->setShowInformation(infoList);
 240     emit additionalInfoChanged();
 241
 242     // Not all view modes support categorized sorting. Adjust the sorting model
 243     // if changing the view mode results in a change of the categorized sorting
 244     // capabilities.
 245     m_storedCategorizedSorting = props.categorizedSorting();
 246     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 247     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
 248         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 249         emit categorizedSortingChanged();
 250     }
 251
 252     emit modeChanged();
 253
 254     updateZoomLevel(oldZoomLevel);
 255     if (m_showPreview) {
 256         loadDirectory(viewPropsUrl);
 257     }
 258 }
 259
 260 DolphinView::Mode DolphinView::mode() const
 261 {
 262     return m_mode;
 263 }
 264
 265 bool DolphinView::showPreview() const
 266 {
 267     return m_showPreview;
 268 }
 269
 270 bool DolphinView::showHiddenFiles() const
 271 {
 272     return m_viewAccessor.dirLister()->showingDotFiles();
 273 }
 274
 275 bool DolphinView::categorizedSorting() const
 276 {
 277     // If all view modes would support categorized sorting, returning
 278     // m_viewAccessor.proxyModel()->isCategorizedModel() would be the way to go. As
 279     // currently only the icons view supports caterized sorting, we remember
 280     // the stored view properties state in m_storedCategorizedSorting and
 281     // return this state. The application takes care to disable the corresponding
 282     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 283     // that this setting is not applied to the current view mode.
 284     return m_storedCategorizedSorting;
 285 }
 286
 287 bool DolphinView::supportsCategorizedSorting() const
 288 {
 289     return m_viewAccessor.supportsCategorizedSorting();
 290 }
 291
 292 void DolphinView::selectAll()
 293 {
 294     QAbstractItemView* view = m_viewAccessor.itemView();
 295     // TODO: there seems to be a bug in QAbstractItemView::selectAll(); if
 296     // the Ctrl-key is pressed (e. g. for Ctrl+A), selectAll() inverts the
 297     // selection instead of selecting all items. This is bypassed for KDE 4.0
 298     // by invoking clearSelection() first.
 299     view->clearSelection();
 300     view->selectAll();
 301 }
 302
 303 void DolphinView::invertSelection()
 304 {
 305     QItemSelectionModel* selectionModel = m_viewAccessor.itemView()->selectionModel();
 306     const QAbstractItemModel* itemModel = selectionModel->model();
 307
 308     const QModelIndex topLeft = itemModel->index(0, 0);
 309     const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 310                                                      itemModel->columnCount() - 1);
 311
 312     const QItemSelection selection(topLeft, bottomRight);
 313     selectionModel->select(selection, QItemSelectionModel::Toggle);
 314 }
 315
 316 bool DolphinView::hasSelection() const
 317 {
 318     return m_viewAccessor.itemView()->selectionModel()->hasSelection();
 319 }
 320
 321 void DolphinView::clearSelection()
 322 {
 323     QItemSelectionModel* selModel = m_viewAccessor.itemView()->selectionModel();
 324     const QModelIndex currentIndex = selModel->currentIndex();
 325     selModel->setCurrentIndex(currentIndex, QItemSelectionModel::Current |
 326                                             QItemSelectionModel::Clear);
 327     m_selectedItems.clear();
 328 }
 329
 330 KFileItemList DolphinView::selectedItems() const
 331 {
 332     const QAbstractItemView* view = m_viewAccessor.itemView();
 333
 334     // Our view has a selection, we will map them back to the DolphinModel
 335     // and then fill the KFileItemList.
 336     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 337
 338     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
 339     KFileItemList itemList;
 340
 341     const QModelIndexList indexList = selection.indexes();
 342     foreach (const QModelIndex &index, indexList) {
 343         KFileItem item = m_viewAccessor.dirModel()->itemForIndex(index);
 344         if (!item.isNull()) {
 345             itemList.append(item);
 346         }
 347     }
 348
 349     return itemList;
 350 }
 351
 352 KUrl::List DolphinView::selectedUrls() const
 353 {
 354     KUrl::List urls;
 355     const KFileItemList list = selectedItems();
 356     foreach (const KFileItem &item, list) {
 357         urls.append(item.url());
 358     }
 359     return urls;
 360 }
 361
 362 int DolphinView::selectedItemsCount() const
 363 {
 364     return m_viewAccessor.itemView()->selectionModel()->selectedIndexes().count();
 365 }
 366
 367 void DolphinView::setContentsPosition(int x, int y)
 368 {
 369     QAbstractItemView* view = m_viewAccessor.itemView();
 370     view->horizontalScrollBar()->setValue(x);
 371     view->verticalScrollBar()->setValue(y);
 372
 373     m_loadingDirectory = false;
 374 }
 375
 376 QPoint DolphinView::contentsPosition() const
 377 {
 378     const int x = m_viewAccessor.itemView()->horizontalScrollBar()->value();
 379     const int y = m_viewAccessor.itemView()->verticalScrollBar()->value();
 380     return QPoint(x, y);
 381 }
 382
 383 void DolphinView::setZoomLevel(int level)
 384 {
 385     if (level < ZoomLevelInfo::minimumLevel()) {
 386         level = ZoomLevelInfo::minimumLevel();
 387     } else if (level > ZoomLevelInfo::maximumLevel()) {
 388         level = ZoomLevelInfo::maximumLevel();
 389     }
 390
 391     if (level != zoomLevel()) {
 392         m_controller->setZoomLevel(level);
 393         emit zoomLevelChanged(level);
 394     }
 395 }
 396
 397 int DolphinView::zoomLevel() const
 398 {
 399     return m_controller->zoomLevel();
 400 }
 401
 402 void DolphinView::setSorting(Sorting sorting)
 403 {
 404     if (sorting != this->sorting()) {
 405         updateSorting(sorting);
 406     }
 407 }
 408
 409 DolphinView::Sorting DolphinView::sorting() const
 410 {
 411     return m_viewAccessor.proxyModel()->sorting();
 412 }
 413
 414 void DolphinView::setSortOrder(Qt::SortOrder order)
 415 {
 416     if (sortOrder() != order) {
 417         updateSortOrder(order);
 418     }
 419 }
 420
 421 Qt::SortOrder DolphinView::sortOrder() const
 422 {
 423     return m_viewAccessor.proxyModel()->sortOrder();
 424 }
 425
 426 void DolphinView::setSortFoldersFirst(bool foldersFirst)
 427 {
 428     if (sortFoldersFirst() != foldersFirst) {
 429         updateSortFoldersFirst(foldersFirst);
 430     }
 431 }
 432
 433 bool DolphinView::sortFoldersFirst() const
 434 {
 435     return m_viewAccessor.proxyModel()->sortFoldersFirst();
 436 }
 437
 438 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 439 {
 440     const KUrl viewPropsUrl = rootUrl();
 441     ViewProperties props(viewPropsUrl);
 442     props.setAdditionalInfo(info);
 443     m_viewAccessor.itemDelegate()->setShowInformation(info);
 444
 445     emit additionalInfoChanged();
 446
 447     if (m_viewAccessor.reloadOnAdditionalInfoChange()) {
 448         loadDirectory(viewPropsUrl);
 449     }
 450 }
 451
 452 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 453 {
 454     return m_viewAccessor.itemDelegate()->showInformation();
 455 }
 456
 457 void DolphinView::reload()
 458 {
 459     setUrl(url());
 460     loadDirectory(url(), true);
 461 }
 462
 463 void DolphinView::refresh()
 464 {
 465     m_ignoreViewProperties = false;
 466
 467     const bool oldActivationState = m_active;
 468     const int oldZoomLevel = m_controller->zoomLevel();
 469     m_active = true;
 470
 471     createView();
 472     applyViewProperties();
 473     reload();
 474
 475     setActive(oldActivationState);
 476     updateZoomLevel(oldZoomLevel);
 477 }
 478
 479 void DolphinView::updateView(const KUrl& url, const KUrl& rootUrl)
 480 {
 481     Q_UNUSED(rootUrl); // TODO: remove after columnview-cleanup has been finished
 482
 483     if (m_controller->url() == url) {
 484         return;
 485     }
 486
 487     m_controller->setUrl(url); // emits urlChanged, which we forward
 488     m_viewAccessor.prepareUrlChange(url);
 489     applyViewProperties();
 490     loadDirectory(url);
 491
 492     // When changing the URL there is no need to keep the version
 493     // data of the previous URL.
 494     m_viewAccessor.dirModel()->clearVersionData();
 495
 496     emit startedPathLoading(url);
 497 }
 498
 499 void DolphinView::setNameFilter(const QString& nameFilter)
 500 {
 501     m_controller->setNameFilter(nameFilter);
 502 }
 503
 504 void DolphinView::calculateItemCount(int& fileCount,
 505                                      int& folderCount,
 506                                      KIO::filesize_t& totalFileSize) const
 507 {
 508     foreach (const KFileItem& item, m_viewAccessor.dirLister()->items()) {
 509         if (item.isDir()) {
 510             ++folderCount;
 511         } else {
 512             ++fileCount;
 513             totalFileSize += item.size();
 514         }
 515     }
 516 }
 517
 518 QString DolphinView::statusBarText() const
 519 {
 520     QString text;
 521     int folderCount = 0;
 522     int fileCount = 0;
 523     KIO::filesize_t totalFileSize = 0;
 524
 525     if (hasSelection()) {
 526         // give a summary of the status of the selected files
 527         const KFileItemList list = selectedItems();
 528         if (list.isEmpty()) {
 529             // when an item is triggered, it is temporary selected but selectedItems()
 530             // will return an empty list
 531             return text;
 532         }
 533
 534         KFileItemList::const_iterator it = list.begin();
 535         const KFileItemList::const_iterator end = list.end();
 536         while (it != end) {
 537             const KFileItem& item = *it;
 538             if (item.isDir()) {
 539                 ++folderCount;
 540             } else {
 541                 ++fileCount;
 542                 totalFileSize += item.size();
 543             }
 544             ++it;
 545         }
 546
 547         if (folderCount + fileCount == 1) {
 548             // if only one item is selected, show the filename
 549             const QString name = list.first().name();
 550             text = (folderCount == 1) ? i18nc("@info:status", "<filename>%1</filename> selected", name) :
 551                                         i18nc("@info:status", "<filename>%1</filename> selected (%2)",
 552                                               name, KIO::convertSize(totalFileSize));
 553         } else {
 554             // at least 2 items are selected
 555             const QString foldersText = i18ncp("@info:status", "1 Folder selected", "%1 Folders selected", folderCount);
 556             const QString filesText = i18ncp("@info:status", "1 File selected", "%1 Files selected", fileCount);
 557             if ((folderCount > 0) && (fileCount > 0)) {
 558                 text = i18nc("@info:status folders, files (size)", "%1, %2 (%3)",
 559                              foldersText, filesText, KIO::convertSize(totalFileSize));
 560             } else if (fileCount > 0) {
 561                 text = i18nc("@info:status files (size)", "%1 (%2)", filesText, KIO::convertSize(totalFileSize));
 562             } else {
 563                 Q_ASSERT(folderCount > 0);
 564                 text = foldersText;
 565             }
 566         }
 567     } else {
 568         calculateItemCount(fileCount, folderCount, totalFileSize);
 569         text = KIO::itemsSummaryString(fileCount + folderCount,
 570                                        fileCount, folderCount,
 571                                        totalFileSize, true);
 572     }
 573
 574     return text;
 575 }
 576
 577 QList<QAction*> DolphinView::versionControlActions(const KFileItemList& items) const
 578 {
 579     return items.isEmpty()
 580            ? m_versionControlObserver->contextMenuActions(url().path(KUrl::AddTrailingSlash))
 581            : m_versionControlObserver->contextMenuActions(items);
 582 }
 583
 584 void DolphinView::setUrl(const KUrl& url)
 585 {
 586     m_newFileNames.clear();
 587     updateView(url, KUrl());
 588 }
 589
 590 void DolphinView::changeSelection(const KFileItemList& selection)
 591 {
 592     clearSelection();
 593     if (selection.isEmpty()) {
 594         return;
 595     }
 596     const KUrl& baseUrl = url();
 597     KUrl url;
 598     QItemSelection newSelection;
 599     foreach(const KFileItem& item, selection) {
 600         url = item.url().upUrl();
 601         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 602             QModelIndex index = m_viewAccessor.proxyModel()->mapFromSource(m_viewAccessor.dirModel()->indexForItem(item));
 603             newSelection.select(index, index);
 604         }
 605     }
 606     m_viewAccessor.itemView()->selectionModel()->select(newSelection,
 607                                          QItemSelectionModel::ClearAndSelect
 608                                          | QItemSelectionModel::Current);
 609 }
 610
 611 void DolphinView::renameSelectedItems()
 612 {
 613     KFileItemList items = selectedItems();
 614     const int itemCount = items.count();
 615     if (itemCount < 1) {
 616         return;
 617     }
 618
 619     if (itemCount > 1) {
 620         // More than one item has been selected for renaming. Open
 621         // a rename dialog and rename all items afterwards.
 622         QPointer<RenameDialog> dialog = new RenameDialog(this, items);
 623         if (dialog->exec() == QDialog::Rejected) {
 624             delete dialog;
 625             return;
 626         }
 627
 628         const QString newName = dialog->newName();
 629         if (newName.isEmpty()) {
 630             emit errorMessage(dialog->errorString());
 631             delete dialog;
 632             return;
 633         }
 634         delete dialog;
 635
 636         // the selection would be invalid after renaming the items, so just clear
 637         // it before
 638         clearSelection();
 639
 640         // TODO: check how this can be integrated into KIO::FileUndoManager/KonqOperations
 641         // as one operation instead of n rename operations like it is done now...
 642         Q_ASSERT(newName.contains('#'));
 643
 644         // currently the items are sorted by the selection order, resort
 645         // them by the file name
 646         qSort(items.begin(), items.end(), lessThan);
 647
 648         // iterate through all selected items and rename them...
 649         int index = 1;
 650         foreach (const KFileItem& item, items) {
 651             const KUrl& oldUrl = item.url();
 652             QString number;
 653             number.setNum(index++);
 654
 655             QString name = newName;
 656             name.replace('#', number);
 657
 658             if (oldUrl.fileName() != name) {
 659                 KUrl newUrl = oldUrl;
 660                 newUrl.setFileName(name);
 661                 KonqOperations::rename(this, oldUrl, newUrl);
 662             }
 663         }
 664     } else if (DolphinSettings::instance().generalSettings()->renameInline()) {
 665         Q_ASSERT(itemCount == 1);
 666         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForItem(items.first());
 667         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
 668         m_viewAccessor.itemView()->edit(proxyIndex);
 669     } else {
 670         Q_ASSERT(itemCount == 1);
 671
 672         QPointer<RenameDialog> dialog = new RenameDialog(this, items);
 673         if (dialog->exec() == QDialog::Rejected) {
 674             delete dialog;
 675             return;
 676         }
 677
 678         const QString newName = dialog->newName();
 679         if (newName.isEmpty()) {
 680             emit errorMessage(dialog->errorString());
 681             delete dialog;
 682             return;
 683         }
 684         delete dialog;
 685
 686         const KUrl& oldUrl = items.first().url();
 687         KUrl newUrl = oldUrl;
 688         newUrl.setFileName(newName);
 689         KonqOperations::rename(this, oldUrl, newUrl);
 690     }
 691
 692     // assure that the current index remains visible when KDirLister
 693     // will notify the view about changed items
 694     m_assureVisibleCurrentIndex = true;
 695 }
 696
 697 void DolphinView::trashSelectedItems()
 698 {
 699     const KUrl::List list = simplifiedSelectedUrls();
 700     KonqOperations::del(this, KonqOperations::TRASH, list);
 701 }
 702
 703 void DolphinView::deleteSelectedItems()
 704 {
 705     const KUrl::List list = simplifiedSelectedUrls();
 706     const bool del = KonqOperations::askDeleteConfirmation(list,
 707                      KonqOperations::DEL,
 708                      KonqOperations::DEFAULT_CONFIRMATION,
 709                      this);
 710
 711     if (del) {
 712         KIO::Job* job = KIO::del(list);
 713         connect(job, SIGNAL(result(KJob*)),
 714                 this, SLOT(slotDeleteFileFinished(KJob*)));
 715     }
 716 }
 717
 718 void DolphinView::cutSelectedItems()
 719 {
 720     QMimeData* mimeData = selectionMimeData();
 721     KonqMimeData::addIsCutSelection(mimeData, true);
 722     QApplication::clipboard()->setMimeData(mimeData);
 723 }
 724
 725 void DolphinView::copySelectedItems()
 726 {
 727     QMimeData* mimeData = selectionMimeData();
 728     QApplication::clipboard()->setMimeData(mimeData);
 729 }
 730
 731 void DolphinView::paste()
 732 {
 733     pasteToUrl(url());
 734 }
 735
 736 void DolphinView::pasteIntoFolder()
 737 {
 738     const KFileItemList items = selectedItems();
 739     if ((items.count() == 1) && items.first().isDir()) {
 740         pasteToUrl(items.first().url());
 741     }
 742 }
 743
 744 void DolphinView::setShowPreview(bool show)
 745 {
 746     if (m_showPreview == show) {
 747         return;
 748     }
 749
 750     const KUrl viewPropsUrl = rootUrl();
 751     ViewProperties props(viewPropsUrl);
 752     props.setShowPreview(show);
 753
 754     m_showPreview = show;
 755     const int oldZoomLevel = m_controller->zoomLevel();
 756     emit showPreviewChanged();
 757
 758     // Enabling or disabling the preview might change the icon size of the view.
 759     // As the view does not emit a signal when the icon size has been changed,
 760     // the used zoom level of the controller must be adjusted manually:
 761     updateZoomLevel(oldZoomLevel);
 762 }
 763
 764 void DolphinView::setShowHiddenFiles(bool show)
 765 {
 766     if (m_viewAccessor.dirLister()->showingDotFiles() == show) {
 767         return;
 768     }
 769
 770     const KUrl viewPropsUrl = rootUrl();
 771     ViewProperties props(viewPropsUrl);
 772     props.setShowHiddenFiles(show);
 773
 774     m_viewAccessor.dirLister()->setShowingDotFiles(show);
 775     emit showHiddenFilesChanged();
 776 }
 777
 778 void DolphinView::setCategorizedSorting(bool categorized)
 779 {
 780     if (categorized == categorizedSorting()) {
 781         return;
 782     }
 783
 784     // setCategorizedSorting(true) may only get invoked
 785     // if the view supports categorized sorting
 786     Q_ASSERT(!categorized || supportsCategorizedSorting());
 787
 788     ViewProperties props(rootUrl());
 789     props.setCategorizedSorting(categorized);
 790     props.save();
 791
 792     m_storedCategorizedSorting = categorized;
 793     m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 794
 795     emit categorizedSortingChanged();
 796 }
 797
 798 void DolphinView::toggleSortOrder()
 799 {
 800     const Qt::SortOrder order = (sortOrder() == Qt::AscendingOrder) ?
 801                                 Qt::DescendingOrder :
 802                                 Qt::AscendingOrder;
 803     setSortOrder(order);
 804 }
 805
 806 void DolphinView::toggleSortFoldersFirst()
 807 {
 808     setSortFoldersFirst(!sortFoldersFirst());
 809 }
 810
 811 void DolphinView::toggleAdditionalInfo(QAction* action)
 812 {
 813     const KFileItemDelegate::Information info =
 814         static_cast<KFileItemDelegate::Information>(action->data().toInt());
 815
 816     KFileItemDelegate::InformationList list = additionalInfo();
 817
 818     const bool show = action->isChecked();
 819
 820     const int index = list.indexOf(info);
 821     const bool containsInfo = (index >= 0);
 822     if (show && !containsInfo) {
 823         list.append(info);
 824         setAdditionalInfo(list);
 825     } else if (!show && containsInfo) {
 826         list.removeAt(index);
 827         setAdditionalInfo(list);
 828         Q_ASSERT(list.indexOf(info) < 0);
 829     }
 830 }
 831
 832 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 833 {
 834     QWidget::mouseReleaseEvent(event);
 835     setActive(true);
 836 }
 837
 838 void DolphinView::wheelEvent(QWheelEvent* event)
 839 {
 840     if (event->modifiers() & Qt::ControlModifier) {
 841         const int delta = event->delta();
 842         const int level = zoomLevel();
 843         if (delta > 0) {
 844             setZoomLevel(level + 1);
 845         } else if (delta < 0) {
 846             setZoomLevel(level - 1);
 847         }
 848         event->accept();
 849     }
 850 }
 851
 852 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 853 {
 854     switch (event->type()) {
 855     case QEvent::FocusIn:
 856         if (watched == m_viewAccessor.itemView()) {
 857             m_controller->requestActivation();
 858         }
 859         break;
 860
 861     case QEvent::MouseButtonPress:
 862         if ((watched == m_viewAccessor.itemView()->viewport()) && (m_expandedDragSource != 0)) {
 863             // Listening to a mousebutton press event to delete expanded views is a
 864             // workaround, as it seems impossible for the FolderExpander to know when
 865             // a dragging outside a view has been finished. However it works quite well:
 866             // A mousebutton press event indicates that a drag operation must be
 867             // finished already.
 868             m_expandedDragSource->deleteLater();
 869             m_expandedDragSource = 0;
 870         }
 871         break;
 872
 873     case QEvent::DragEnter:
 874         if (watched == m_viewAccessor.itemView()->viewport()) {
 875             setActive(true);
 876         }
 877         break;
 878
 879     case QEvent::KeyPress:
 880         if (watched == m_viewAccessor.itemView()) {
 881             // clear the selection when Escape has been pressed
 882             QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
 883             if (keyEvent->key() == Qt::Key_Escape) {
 884                 clearSelection();
 885             }
 886         }
 887         break;
 888
 889     default:
 890         break;
 891     }
 892
 893     return QWidget::eventFilter(watched, event);
 894 }
 895
 896 void DolphinView::activate()
 897 {
 898     setActive(true);
 899 }
 900
 901 void DolphinView::triggerItem(const KFileItem& item)
 902 {
 903     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 904     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 905         // items are selected by the user, hence don't trigger the
 906         // item specified by 'index'
 907         return;
 908     }
 909
 910     // TODO: the m_isContextMenuOpen check is a workaround for Qt-issue 207192
 911     if (item.isNull() || m_isContextMenuOpen) {
 912         return;
 913     }
 914
 915     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 916 }
 917
 918 void DolphinView::emitDelayedSelectionChangedSignal()
 919 {
 920     // Invoke emitSelectionChangedSignal() with a delay of 300 ms. This assures
 921     // that fast selection changes don't result in expensive operations to
 922     // collect all file items for the signal (see DolphinView::selectedItems()).
 923     m_selectionChangedTimer->start();
 924 }
 925
 926 void DolphinView::emitSelectionChangedSignal()
 927 {
 928     emit selectionChanged(DolphinView::selectedItems());
 929 }
 930
 931 void DolphinView::openContextMenu(const QPoint& pos,
 932                                   const QList<QAction*>& customActions)
 933 {
 934     KFileItem item;
 935     const QModelIndex index = m_viewAccessor.itemView()->indexAt(pos);
 936     if (index.isValid() && (index.column() == DolphinModel::Name)) {
 937         const QModelIndex dolphinModelIndex = m_viewAccessor.proxyModel()->mapToSource(index);
 938         item = m_viewAccessor.dirModel()->itemForIndex(dolphinModelIndex);
 939     }
 940
 941     m_isContextMenuOpen = true; // TODO: workaround for Qt-issue 207192
 942     emit requestContextMenu(item, url(), customActions);
 943     m_isContextMenuOpen = false;
 944 }
 945
 946 void DolphinView::dropUrls(const KFileItem& destItem,
 947                            const KUrl& destPath,
 948                            QDropEvent* event)
 949 {
 950     addNewFileNames(event->mimeData());
 951     DragAndDropHelper::instance().dropUrls(destItem, destPath, event, this);
 952 }
 953
 954 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 955 {
 956     ViewProperties props(rootUrl());
 957     props.setSorting(sorting);
 958
 959     m_viewAccessor.proxyModel()->setSorting(sorting);
 960
 961     emit sortingChanged(sorting);
 962 }
 963
 964 void DolphinView::updateSortOrder(Qt::SortOrder order)
 965 {
 966     ViewProperties props(rootUrl());
 967     props.setSortOrder(order);
 968
 969     m_viewAccessor.proxyModel()->setSortOrder(order);
 970
 971     emit sortOrderChanged(order);
 972 }
 973
 974 void DolphinView::updateSortFoldersFirst(bool foldersFirst)
 975 {
 976     ViewProperties props(rootUrl());
 977     props.setSortFoldersFirst(foldersFirst);
 978
 979     m_viewAccessor.proxyModel()->setSortFoldersFirst(foldersFirst);
 980
 981     emit sortFoldersFirstChanged(foldersFirst);
 982 }
 983
 984 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 985 {
 986     ViewProperties props(rootUrl());
 987     props.setAdditionalInfo(info);
 988     props.save();
 989
 990     m_viewAccessor.itemDelegate()->setShowInformation(info);
 991
 992     emit additionalInfoChanged();
 993 }
 994
 995 void DolphinView::updateAdditionalInfoActions(KActionCollection* collection)
 996 {
 997     const bool enable = (m_mode == DolphinView::DetailsView) ||
 998                         (m_mode == DolphinView::IconsView);
 999
1000     QAction* showSizeInfo = collection->action("show_size_info");
1001     QAction* showDateInfo = collection->action("show_date_info");
1002     QAction* showPermissionsInfo = collection->action("show_permissions_info");
1003     QAction* showOwnerInfo = collection->action("show_owner_info");
1004     QAction* showGroupInfo = collection->action("show_group_info");
1005     QAction* showMimeInfo = collection->action("show_mime_info");
1006
1007     showSizeInfo->setChecked(false);
1008     showDateInfo->setChecked(false);
1009     showPermissionsInfo->setChecked(false);
1010     showOwnerInfo->setChecked(false);
1011     showGroupInfo->setChecked(false);
1012     showMimeInfo->setChecked(false);
1013
1014     showSizeInfo->setEnabled(enable);
1015     showDateInfo->setEnabled(enable);
1016     showPermissionsInfo->setEnabled(enable);
1017     showOwnerInfo->setEnabled(enable);
1018     showGroupInfo->setEnabled(enable);
1019     showMimeInfo->setEnabled(enable);
1020
1021     foreach (KFileItemDelegate::Information info, m_viewAccessor.itemDelegate()->showInformation()) {
1022         switch (info) {
1023         case KFileItemDelegate::Size:
1024             showSizeInfo->setChecked(true);
1025             break;
1026         case KFileItemDelegate::ModificationTime:
1027             showDateInfo->setChecked(true);
1028             break;
1029         case KFileItemDelegate::Permissions:
1030             showPermissionsInfo->setChecked(true);
1031             break;
1032         case KFileItemDelegate::Owner:
1033             showOwnerInfo->setChecked(true);
1034             break;
1035         case KFileItemDelegate::OwnerAndGroup:
1036             showGroupInfo->setChecked(true);
1037             break;
1038         case KFileItemDelegate::FriendlyMimeType:
1039             showMimeInfo->setChecked(true);
1040             break;
1041         default:
1042             break;
1043         }
1044     }
1045 }
1046
1047 QPair<bool, QString> DolphinView::pasteInfo() const
1048 {
1049     return KonqOperations::pasteInfo(url());
1050 }
1051
1052 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
1053 {
1054     m_tabsForFiles = tabsForFiles;
1055 }
1056
1057 bool DolphinView::isTabsForFilesEnabled() const
1058 {
1059     return m_tabsForFiles;
1060 }
1061
1062 void DolphinView::activateItem(const KUrl& url)
1063 {
1064     m_activeItemUrl = url;
1065 }
1066
1067 bool DolphinView::itemsExpandable() const
1068 {
1069     return m_viewAccessor.itemsExpandable();
1070 }
1071
1072 void DolphinView::deleteWhenNotDragSource(QAbstractItemView *view)
1073 {
1074     if (view == 0)
1075         return;
1076
1077     if (DragAndDropHelper::instance().isDragSource(view)) {
1078         // We must store for later deletion.
1079         if (m_expandedDragSource != 0) {
1080             // The old stored view is obviously not the drag source anymore.
1081             m_expandedDragSource->deleteLater();
1082             m_expandedDragSource = 0;
1083         }
1084         view->hide();
1085         m_expandedDragSource = view;
1086     }
1087     else {
1088         view->deleteLater();
1089     }
1090 }
1091
1092 void DolphinView::observeCreatedItem(const KUrl& url)
1093 {
1094     m_createdItemUrl = url;
1095     connect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
1096             this, SLOT(selectAndScrollToCreatedItem()));
1097 }
1098
1099 void DolphinView::selectAndScrollToCreatedItem()
1100 {
1101     const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_createdItemUrl);
1102     if (dirIndex.isValid()) {
1103         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1104         m_viewAccessor.itemView()->setCurrentIndex(proxyIndex);
1105     }
1106
1107     disconnect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
1108                this, SLOT(selectAndScrollToCreatedItem()));
1109     m_createdItemUrl = KUrl();
1110 }
1111
1112 void DolphinView::restoreSelection()
1113 {
1114     disconnect(m_viewAccessor.dirLister(), SIGNAL(completed()), this, SLOT(restoreSelection()));
1115     changeSelection(m_selectedItems);
1116 }
1117
1118 void DolphinView::emitContentsMoved()
1119 {
1120     // only emit the contents moved signal if no directory loading is ongoing
1121     // (this would reset the contents position always to (0, 0))
1122     if (!m_loadingDirectory) {
1123         const QPoint pos(contentsPosition());
1124         emit contentsMoved(pos.x(), pos.y());
1125     }
1126 }
1127
1128 void DolphinView::showHoverInformation(const KFileItem& item)
1129 {
1130     emit requestItemInfo(item);
1131 }
1132
1133 void DolphinView::clearHoverInformation()
1134 {
1135     emit requestItemInfo(KFileItem());
1136 }
1137
1138 void DolphinView::slotDeleteFileFinished(KJob* job)
1139 {
1140     if (job->error() == 0) {
1141         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1142     } else if (job->error() != KIO::ERR_USER_CANCELED) {
1143         emit errorMessage(job->errorString());
1144     }
1145 }
1146
1147 void DolphinView::slotRequestUrlChange(const KUrl& url)
1148 {
1149     emit requestUrlChange(url);
1150     m_controller->setUrl(url);
1151 }
1152
1153 void DolphinView::slotDirListerCompleted()
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_newFileNames.isEmpty()) {
1171         // select all newly added items created by a paste operation or
1172         // a drag & drop operation
1173         const int rowCount = m_viewAccessor.proxyModel()->rowCount();
1174         QItemSelection selection;
1175         for (int row = 0; row < rowCount; ++row) {
1176             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->index(row, 0);
1177             const QModelIndex dirIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
1178             const KUrl url = m_viewAccessor.dirModel()->itemForIndex(dirIndex).url();
1179             if (m_newFileNames.contains(url.fileName())) {
1180                 selection.merge(QItemSelection(proxyIndex, proxyIndex), QItemSelectionModel::Select);
1181             }
1182         }
1183         m_viewAccessor.itemView()->selectionModel()->select(selection, QItemSelectionModel::Select);
1184
1185         m_newFileNames.clear();
1186     }
1187 }
1188
1189 void DolphinView::slotRefreshItems()
1190 {
1191     if (m_assureVisibleCurrentIndex) {
1192         m_assureVisibleCurrentIndex = false;
1193         m_viewAccessor.itemView()->scrollTo(m_viewAccessor.itemView()->currentIndex());
1194     }
1195 }
1196
1197 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1198 {
1199     if (!url.isValid()) {
1200         const QString location(url.pathOrUrl());
1201         if (location.isEmpty()) {
1202             emit errorMessage(i18nc("@info:status", "The location is empty."));
1203         } else {
1204             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1205         }
1206         return;
1207     }
1208
1209     m_loadingDirectory = true;
1210
1211     if (reload) {
1212         m_selectedItems = selectedItems();
1213         connect(m_viewAccessor.dirLister(), SIGNAL(completed()), this, SLOT(restoreSelection()));
1214     }
1215
1216     m_viewAccessor.dirLister()->stop();
1217     m_viewAccessor.dirLister()->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
1218 }
1219
1220 void DolphinView::applyViewProperties()
1221 {
1222     if (m_ignoreViewProperties) {
1223         return;
1224     }
1225
1226     const ViewProperties props(rootUrl());
1227
1228     const Mode mode = props.viewMode();
1229     if (m_mode != mode) {
1230         const int oldZoomLevel = m_controller->zoomLevel();
1231
1232         m_mode = mode;
1233         createView();
1234         emit modeChanged();
1235
1236         updateZoomLevel(oldZoomLevel);
1237     }
1238     if (m_viewAccessor.itemView() == 0) {
1239         createView();
1240     }
1241     Q_ASSERT(m_viewAccessor.itemView() != 0);
1242     Q_ASSERT(m_viewAccessor.itemDelegate() != 0);
1243
1244     const bool showHiddenFiles = props.showHiddenFiles();
1245     if (showHiddenFiles != m_viewAccessor.dirLister()->showingDotFiles()) {
1246         m_viewAccessor.dirLister()->setShowingDotFiles(showHiddenFiles);
1247         emit showHiddenFilesChanged();
1248     }
1249
1250     m_storedCategorizedSorting = props.categorizedSorting();
1251     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1252     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
1253         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
1254         emit categorizedSortingChanged();
1255     }
1256
1257     const DolphinView::Sorting sorting = props.sorting();
1258     if (sorting != m_viewAccessor.proxyModel()->sorting()) {
1259         m_viewAccessor.proxyModel()->setSorting(sorting);
1260         emit sortingChanged(sorting);
1261     }
1262
1263     const Qt::SortOrder sortOrder = props.sortOrder();
1264     if (sortOrder != m_viewAccessor.proxyModel()->sortOrder()) {
1265         m_viewAccessor.proxyModel()->setSortOrder(sortOrder);
1266         emit sortOrderChanged(sortOrder);
1267     }
1268
1269     const bool sortFoldersFirst = props.sortFoldersFirst();
1270     if (sortFoldersFirst != m_viewAccessor.proxyModel()->sortFoldersFirst()) {
1271         m_viewAccessor.proxyModel()->setSortFoldersFirst(sortFoldersFirst);
1272         emit sortFoldersFirstChanged(sortFoldersFirst);
1273     }
1274
1275     KFileItemDelegate::InformationList info = props.additionalInfo();
1276     if (info != m_viewAccessor.itemDelegate()->showInformation()) {
1277         m_viewAccessor.itemDelegate()->setShowInformation(info);
1278         emit additionalInfoChanged();
1279     }
1280
1281     const bool showPreview = props.showPreview();
1282     if (showPreview != m_showPreview) {
1283         m_showPreview = showPreview;
1284         const int oldZoomLevel = m_controller->zoomLevel();
1285         emit showPreviewChanged();
1286
1287         // Enabling or disabling the preview might change the icon size of the view.
1288         // As the view does not emit a signal when the icon size has been changed,
1289         // the used zoom level of the controller must be adjusted manually:
1290         updateZoomLevel(oldZoomLevel);
1291     }
1292
1293     if (DolphinSettings::instance().generalSettings()->globalViewProps()) {
1294         // During the lifetime of a DolphinView instance the global view properties
1295         // should not be changed. This allows e. g. to split a view and use different
1296         // view properties for each view.
1297         m_ignoreViewProperties = true;
1298     }
1299 }
1300
1301 void DolphinView::createView()
1302 {
1303     deleteView();
1304     Q_ASSERT(m_viewAccessor.itemView() == 0);
1305     m_viewAccessor.createView(this, m_controller, m_mode);
1306
1307     QAbstractItemView* view = m_viewAccessor.itemView();
1308     Q_ASSERT(view != 0);
1309     view->installEventFilter(this);
1310     view->viewport()->installEventFilter(this);
1311
1312
1313     /* TODO: enable folder expanding again later
1314
1315     if (m_mode != ColumnView) {
1316         // Give the view the ability to auto-expand its directories on hovering
1317         // (the column view takes care about this itself). If the details view
1318         // uses expandable folders, the auto-expanding should be used always.
1319         FolderExpander* folderExpander = new FolderExpander(view, m_viewAccessor.proxyModel());
1320         folderExpander->setEnabled(m_viewAccessor.hasExpandableFolders());
1321         connect(folderExpander, SIGNAL(enterDir(const QModelIndex&)),
1322                 m_controller, SLOT(triggerItem(const QModelIndex&)));
1323
1324     }
1325     else {
1326         // Listen out for requests to delete the current column.
1327         connect(m_viewAccessor.columnsContainer(), SIGNAL(requestColumnDeletion(QAbstractItemView*)),
1328                 this, SLOT(deleteWhenNotDragSource(QAbstractItemView*)));
1329     }*/
1330
1331     m_controller->setItemView(view);
1332
1333     // When changing the view mode, the selection is lost due to reinstantiating
1334     // a new item view with a custom selection model. Pass the ownership of the
1335     // selection model to DolphinView, so that it can be shared by all item views.
1336     if (m_selectionModel != 0) {
1337         view->setSelectionModel(m_selectionModel);
1338     } else {
1339         m_selectionModel = view->selectionModel();
1340     }
1341     m_selectionModel->setParent(this);
1342
1343     m_versionControlObserver = new VersionControlObserver(view);
1344     connect(m_versionControlObserver, SIGNAL(infoMessage(const QString&)),
1345             this, SIGNAL(infoMessage(const QString&)));
1346     connect(m_versionControlObserver, SIGNAL(errorMessage(const QString&)),
1347             this, SIGNAL(errorMessage(const QString&)));
1348     connect(m_versionControlObserver, SIGNAL(operationCompletedMessage(const QString&)),
1349             this, SIGNAL(operationCompletedMessage(const QString&)));
1350
1351     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
1352             this, SLOT(emitDelayedSelectionChangedSignal()));
1353     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
1354             this, SLOT(emitContentsMoved()));
1355     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
1356             this, SLOT(emitContentsMoved()));
1357
1358     setFocusProxy(m_viewAccessor.layoutTarget());
1359     m_topLayout->insertWidget(1, m_viewAccessor.layoutTarget());
1360 }
1361
1362 void DolphinView::deleteView()
1363 {
1364     QAbstractItemView* view = m_viewAccessor.itemView();
1365     if (view != 0) {
1366         // It's important to set the keyboard focus to the parent
1367         // before deleting the view: Otherwise when having a split
1368         // view the other view will get the focus and will request
1369         // an activation (see DolphinView::eventFilter()).
1370         setFocusProxy(0);
1371         setFocus();
1372
1373         m_topLayout->removeWidget(view);
1374         view->close();
1375
1376         disconnect(view);
1377         m_controller->disconnect(view);
1378         view->disconnect();
1379
1380         // TODO: move this code into ViewAccessor::deleteView()
1381         deleteWhenNotDragSource(view);
1382         view = 0;
1383
1384         m_viewAccessor.deleteView();
1385     }
1386 }
1387
1388 void DolphinView::pasteToUrl(const KUrl& url)
1389 {
1390     addNewFileNames(QApplication::clipboard()->mimeData());
1391     KonqOperations::doPaste(this, url);
1392 }
1393
1394 void DolphinView::updateZoomLevel(int oldZoomLevel)
1395 {
1396     const int newZoomLevel = ZoomLevelInfo::zoomLevelForIconSize(m_viewAccessor.itemView()->iconSize());
1397     if (oldZoomLevel != newZoomLevel) {
1398         m_controller->setZoomLevel(newZoomLevel);
1399         emit zoomLevelChanged(newZoomLevel);
1400     }
1401 }
1402
1403 KUrl::List DolphinView::simplifiedSelectedUrls() const
1404 {
1405     KUrl::List list = selectedUrls();
1406     if (itemsExpandable() ) {
1407         list = KDirModel::simplifiedUrlList(list);
1408     }
1409     return list;
1410 }
1411
1412 QMimeData* DolphinView::selectionMimeData() const
1413 {
1414     const QAbstractItemView* view = m_viewAccessor.itemView();
1415     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
1416     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
1417     return m_viewAccessor.dirModel()->mimeData(selection.indexes());
1418 }
1419
1420 void DolphinView::addNewFileNames(const QMimeData* mimeData)
1421 {
1422     const KUrl::List urls = KUrl::List::fromMimeData(mimeData);
1423     foreach (const KUrl& url, urls) {
1424         m_newFileNames.insert(url.fileName());
1425     }
1426 }
1427
1428 DolphinView::ViewAccessor::ViewAccessor(DolphinSortFilterProxyModel* proxyModel) :
1429     m_iconsView(0),
1430     m_detailsView(0),
1431     m_columnsContainer(0),
1432     m_proxyModel(proxyModel)
1433 {
1434 }
1435
1436 void DolphinView::ViewAccessor::createView(QWidget* parent,
1437                                            DolphinController* controller,
1438                                            Mode mode)
1439 {
1440     Q_ASSERT(itemView() == 0);
1441
1442     switch (mode) {
1443     case IconsView:
1444         m_iconsView = new DolphinIconsView(parent, controller, m_proxyModel);
1445         break;
1446
1447     case DetailsView:
1448         m_detailsView = new DolphinDetailsView(parent, controller, m_proxyModel);
1449         break;
1450
1451     case ColumnView:
1452         m_columnsContainer = new DolphinColumnViewContainer(parent, controller);
1453         break;
1454
1455     default:
1456         Q_ASSERT(false);
1457     }
1458 }
1459
1460 void DolphinView::ViewAccessor::deleteView()
1461 {
1462     // TODO: Move the deleteWhenNotDragSource() code into the view
1463     // accessor, so that creating and deleting is fully done by
1464     // the view accessor.
1465     m_iconsView = 0;
1466     m_detailsView = 0;
1467
1468     m_columnsContainer->deleteLater();
1469     m_columnsContainer = 0;
1470 }
1471
1472
1473 void DolphinView::ViewAccessor::prepareUrlChange(const KUrl& url)
1474 {
1475     if (m_columnsContainer != 0) {
1476         m_columnsContainer->showColumn(url);
1477     }
1478 }
1479
1480 QAbstractItemView* DolphinView::ViewAccessor::itemView() const
1481 {
1482     if (m_iconsView != 0) {
1483         return m_iconsView;
1484     }
1485
1486     if (m_detailsView != 0) {
1487         return m_detailsView;
1488     }
1489
1490     if (m_columnsContainer != 0) {
1491         return m_columnsContainer->activeColumn();
1492     }
1493
1494     return 0;
1495 }
1496
1497 KFileItemDelegate* DolphinView::ViewAccessor::itemDelegate() const
1498 {
1499     return static_cast<KFileItemDelegate*>(itemView()->itemDelegate());
1500 }
1501
1502 QWidget* DolphinView::ViewAccessor::layoutTarget() const
1503 {
1504     if (m_columnsContainer != 0) {
1505         return m_columnsContainer;
1506     }
1507     return itemView();
1508 }
1509
1510 KUrl DolphinView::ViewAccessor::rootUrl() const
1511 {
1512     return (m_columnsContainer != 0) ? m_columnsContainer->rootUrl() : KUrl();
1513 }
1514
1515 bool DolphinView::ViewAccessor::supportsCategorizedSorting() const
1516 {
1517     return m_iconsView != 0;
1518 }
1519
1520 bool DolphinView::ViewAccessor::hasExpandableFolders() const
1521 {
1522     const DolphinSettings& settings = DolphinSettings::instance();
1523     return settings.generalSettings()->autoExpandFolders() ||
1524            ((m_detailsView != 0) && settings.detailsModeSettings()->expandableFolders());
1525 }
1526
1527 bool DolphinView::ViewAccessor::itemsExpandable() const
1528 {
1529     return (m_detailsView != 0) && m_detailsView->itemsExpandable();
1530 }
1531
1532 bool DolphinView::ViewAccessor::reloadOnAdditionalInfoChange() const
1533 {
1534     // the details view requires no reloading of the directory, as it maps
1535     // the file item delegate info to its columns internally
1536     return m_detailsView != 0;
1537 }
1538
1539
1540 DolphinModel* DolphinView::ViewAccessor::dirModel() const
1541 {
1542     return static_cast<DolphinModel*>(proxyModel()->sourceModel());
1543 }
1544
1545 DolphinSortFilterProxyModel* DolphinView::ViewAccessor::proxyModel() const
1546 {
1547     if (m_columnsContainer != 0) {
1548         return static_cast<DolphinSortFilterProxyModel*>(m_columnsContainer->activeColumn()->model());
1549     }
1550     return m_proxyModel;
1551 }
1552
1553 KDirLister* DolphinView::ViewAccessor::dirLister() const
1554 {
1555     return dirModel()->dirLister();
1556 }
1557
1558 #include "dolphinview.moc"