src/dolphinview.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006-2009 by Peter Penz <peter.penz@gmx.at>             *
   3  *   Copyright (C) 2006 by Gregor Kališnik <gregor@podnapisi.net>          *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  19  ***************************************************************************/
  20
  21 #include "dolphinview.h"
  22
  23 #include <QAbstractItemView>
  24 #include <QApplication>
  25 #include <QClipboard>
  26 #include <QKeyEvent>
  27 #include <QItemSelection>
  28 #include <QBoxLayout>
  29 #include <QTimer>
  30 #include <QScrollBar>
  31
  32 #include <kactioncollection.h>
  33 #include <kcolorscheme.h>
  34 #include <kdirlister.h>
  35 #include <kiconeffect.h>
  36 #include <kfileitem.h>
  37 #include <klocale.h>
  38 #include <kio/deletejob.h>
  39 #include <kio/netaccess.h>
  40 #include <kio/previewjob.h>
  41 #include <kjob.h>
  42 #include <kmenu.h>
  43 #include <kmessagebox.h>
  44 #include <kmimetyperesolver.h>
  45 #include <konq_fileitemcapabilities.h>
  46 #include <konq_operations.h>
  47 #include <konqmimedata.h>
  48 #include <kstringhandler.h>
  49 #include <ktoggleaction.h>
  50 #include <kurl.h>
  51
  52 #include "dolphinmodel.h"
  53 #include "dolphincolumnviewcontainer.h"
  54 #include "dolphincontroller.h"
  55 #include "dolphindetailsview.h"
  56 #include "dolphinfileitemdelegate.h"
  57 #include "dolphinnewmenuobserver.h"
  58 #include "dolphinsortfilterproxymodel.h"
  59 #include "dolphin_detailsmodesettings.h"
  60 #include "dolphiniconsview.h"
  61 #include "dolphin_generalsettings.h"
  62 #include "draganddrophelper.h"
  63 #include "folderexpander.h"
  64 #include "renamedialog.h"
  65 #include "settings/dolphinsettings.h"
  66 #include "viewproperties.h"
  67 #include "zoomlevelinfo.h"
  68
  69 /**
  70  * Helper function for sorting items with qSort() in
  71  * DolphinView::renameSelectedItems().
  72  */
  73 bool lessThan(const KFileItem& item1, const KFileItem& item2)
  74 {
  75     return KStringHandler::naturalCompare(item1.name(), item2.name()) < 0;
  76 }
  77
  78 DolphinView::DolphinView(QWidget* parent,
  79                          const KUrl& url,
  80                          DolphinSortFilterProxyModel* proxyModel) :
  81     QWidget(parent),
  82     m_active(true),
  83     m_showPreview(false),
  84     m_loadingDirectory(false),
  85     m_storedCategorizedSorting(false),
  86     m_tabsForFiles(false),
  87     m_isContextMenuOpen(false),
  88     m_ignoreViewProperties(false),
  89     m_assureVisibleCurrentIndex(false),
  90     m_mode(DolphinView::IconsView),
  91     m_topLayout(0),
  92     m_controller(0),
  93     m_viewAccessor(proxyModel),
  94     m_selectionModel(0),
  95     m_selectionChangedTimer(0),
  96     m_rootUrl(),
  97     m_activeItemUrl(),
  98     m_createdItemUrl(),
  99     m_selectedItems(),
 100     m_newFileNames(),
 101     m_expandedDragSource(0)
 102 {
 103     m_topLayout = new QVBoxLayout(this);
 104     m_topLayout->setSpacing(0);
 105     m_topLayout->setMargin(0);
 106
 107     m_controller = new DolphinController(this);
 108     m_controller->setUrl(url);
 109
 110     connect(m_controller, SIGNAL(urlChanged(const KUrl&)),
 111             this, SIGNAL(urlChanged(const KUrl&)));
 112     connect(m_controller, SIGNAL(requestUrlChange(const KUrl&)),
 113             this, SLOT(slotRequestUrlChange(const KUrl&)));
 114
 115     connect(m_controller, SIGNAL(requestContextMenu(const QPoint&, const QList<QAction*>&)),
 116             this, SLOT(openContextMenu(const QPoint&, const QList<QAction*>&)));
 117     connect(m_controller, SIGNAL(urlsDropped(const KFileItem&, const KUrl&, QDropEvent*)),
 118             this, SLOT(dropUrls(const KFileItem&, const KUrl&, QDropEvent*)));
 119     connect(m_controller, SIGNAL(sortingChanged(DolphinView::Sorting)),
 120             this, SLOT(updateSorting(DolphinView::Sorting)));
 121     connect(m_controller, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 122             this, SLOT(updateSortOrder(Qt::SortOrder)));
 123     connect(m_controller, SIGNAL(sortFoldersFirstChanged(bool)),
 124             this, SLOT(updateSortFoldersFirst(bool)));
 125     connect(m_controller, SIGNAL(additionalInfoChanged(const KFileItemDelegate::InformationList&)),
 126             this, SLOT(updateAdditionalInfo(const KFileItemDelegate::InformationList&)));
 127     connect(m_controller, SIGNAL(itemTriggered(const KFileItem&)),
 128             this, SLOT(triggerItem(const KFileItem&)));
 129     connect(m_controller, SIGNAL(tabRequested(const KUrl&)),
 130             this, SIGNAL(tabRequested(const KUrl&)));
 131     connect(m_controller, SIGNAL(activated()),
 132             this, SLOT(activate()));
 133     connect(m_controller, SIGNAL(itemEntered(const KFileItem&)),
 134             this, SLOT(showHoverInformation(const KFileItem&)));
 135     connect(m_controller, SIGNAL(viewportEntered()),
 136             this, SLOT(clearHoverInformation()));
 137
 138     KDirLister* dirLister = m_viewAccessor.dirLister();
 139     connect(dirLister, SIGNAL(redirection(KUrl, KUrl)),
 140             this, SIGNAL(redirection(KUrl, KUrl)));
 141     connect(dirLister, SIGNAL(completed()),
 142             this, SLOT(slotDirListerCompleted()));
 143     connect(dirLister, SIGNAL(refreshItems(const QList<QPair<KFileItem,KFileItem>>&)),
 144             this, SLOT(slotRefreshItems()));
 145
 146     // When a new item has been created by the "Create New..." menu, the item should
 147     // get selected and it must be assured that the item will get visible. As the
 148     // creation is done asynchronously, several signals must be checked:
 149     connect(&DolphinNewMenuObserver::instance(), SIGNAL(itemCreated(const KUrl&)),
 150             this, SLOT(observeCreatedItem(const KUrl&)));
 151
 152     m_selectionChangedTimer = new QTimer(this);
 153     m_selectionChangedTimer->setSingleShot(true);
 154     m_selectionChangedTimer->setInterval(300);
 155     connect(m_selectionChangedTimer, SIGNAL(timeout()),
 156             this, SLOT(emitSelectionChangedSignal()));
 157
 158     applyViewProperties();
 159     m_topLayout->addWidget(m_viewAccessor.itemView());
 160 }
 161
 162 DolphinView::~DolphinView()
 163 {
 164     delete m_expandedDragSource;
 165     m_expandedDragSource = 0;
 166 }
 167
 168 const KUrl& DolphinView::url() const
 169 {
 170     return m_controller->url();
 171 }
 172
 173 KUrl DolphinView::rootUrl() const
 174 {
 175     const KUrl viewUrl = url();
 176     const KUrl root = m_viewAccessor.rootUrl();
 177     if (root.isEmpty() || !root.isParentOf(viewUrl)) {
 178         return viewUrl;
 179     }
 180     return root;
 181 }
 182
 183 void DolphinView::setActive(bool active)
 184 {
 185     if (active == m_active) {
 186         return;
 187     }
 188
 189     m_active = active;
 190
 191     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 192     if (active) {
 193         emitSelectionChangedSignal();
 194     } else {
 195         color.setAlpha(150);
 196     }
 197
 198     QWidget* viewport = m_viewAccessor.itemView()->viewport();
 199     QPalette palette;
 200     palette.setColor(viewport->backgroundRole(), color);
 201     viewport->setPalette(palette);
 202
 203     update();
 204
 205     if (active) {
 206         m_viewAccessor.itemView()->setFocus();
 207         emit activated();
 208     }
 209
 210     m_controller->indicateActivationChange(active);
 211 }
 212
 213 bool DolphinView::isActive() const
 214 {
 215     return m_active;
 216 }
 217
 218 void DolphinView::setMode(Mode mode)
 219 {
 220     if (mode == m_mode) {
 221         return; // the wished mode is already set
 222     }
 223
 224     const int oldZoomLevel = m_controller->zoomLevel();
 225     m_mode = mode;
 226
 227     deleteView();
 228
 229     const KUrl viewPropsUrl = rootUrl();
 230     ViewProperties props(viewPropsUrl);
 231     props.setViewMode(m_mode);
 232     createView();
 233
 234     // the file item delegate has been recreated, apply the current
 235     // additional information manually
 236     const KFileItemDelegate::InformationList infoList = props.additionalInfo();
 237     m_viewAccessor.itemDelegate()->setShowInformation(infoList);
 238     emit additionalInfoChanged();
 239
 240     // Not all view modes support categorized sorting. Adjust the sorting model
 241     // if changing the view mode results in a change of the categorized sorting
 242     // capabilities.
 243     m_storedCategorizedSorting = props.categorizedSorting();
 244     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 245     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
 246         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 247         emit categorizedSortingChanged();
 248     }
 249
 250     emit modeChanged();
 251
 252     updateZoomLevel(oldZoomLevel);
 253     if (m_showPreview) {
 254         loadDirectory(viewPropsUrl);
 255     }
 256 }
 257
 258 DolphinView::Mode DolphinView::mode() const
 259 {
 260     return m_mode;
 261 }
 262
 263 bool DolphinView::showPreview() const
 264 {
 265     return m_showPreview;
 266 }
 267
 268 bool DolphinView::showHiddenFiles() const
 269 {
 270     return m_viewAccessor.dirLister()->showingDotFiles();
 271 }
 272
 273 bool DolphinView::categorizedSorting() const
 274 {
 275     // If all view modes would support categorized sorting, returning
 276     // m_viewAccessor.proxyModel()->isCategorizedModel() would be the way to go. As
 277     // currently only the icons view supports caterized sorting, we remember
 278     // the stored view properties state in m_storedCategorizedSorting and
 279     // return this state. The application takes care to disable the corresponding
 280     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 281     // that this setting is not applied to the current view mode.
 282     return m_storedCategorizedSorting;
 283 }
 284
 285 bool DolphinView::supportsCategorizedSorting() const
 286 {
 287     return m_viewAccessor.supportsCategorizedSorting();
 288 }
 289
 290 void DolphinView::selectAll()
 291 {
 292     QAbstractItemView* view = m_viewAccessor.itemView();
 293     // TODO: there seems to be a bug in QAbstractItemView::selectAll(); if
 294     // the Ctrl-key is pressed (e. g. for Ctrl+A), selectAll() inverts the
 295     // selection instead of selecting all items. This is bypassed for KDE 4.0
 296     // by invoking clearSelection() first.
 297     view->clearSelection();
 298     view->selectAll();
 299 }
 300
 301 void DolphinView::invertSelection()
 302 {
 303     QItemSelectionModel* selectionModel = m_viewAccessor.itemView()->selectionModel();
 304     const QAbstractItemModel* itemModel = selectionModel->model();
 305
 306     const QModelIndex topLeft = itemModel->index(0, 0);
 307     const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 308                                                      itemModel->columnCount() - 1);
 309
 310     const QItemSelection selection(topLeft, bottomRight);
 311     selectionModel->select(selection, QItemSelectionModel::Toggle);
 312 }
 313
 314 bool DolphinView::hasSelection() const
 315 {
 316     return m_viewAccessor.itemView()->selectionModel()->hasSelection();
 317 }
 318
 319 void DolphinView::clearSelection()
 320 {
 321     QItemSelectionModel* selModel = m_viewAccessor.itemView()->selectionModel();
 322     const QModelIndex currentIndex = selModel->currentIndex();
 323     selModel->setCurrentIndex(currentIndex, QItemSelectionModel::Current |
 324                                             QItemSelectionModel::Clear);
 325     m_selectedItems.clear();
 326 }
 327
 328 KFileItemList DolphinView::selectedItems() const
 329 {
 330     const QAbstractItemView* view = m_viewAccessor.itemView();
 331
 332     // Our view has a selection, we will map them back to the DolphinModel
 333     // and then fill the KFileItemList.
 334     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 335
 336     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
 337     KFileItemList itemList;
 338
 339     const QModelIndexList indexList = selection.indexes();
 340     foreach (const QModelIndex &index, indexList) {
 341         KFileItem item = m_viewAccessor.dirModel()->itemForIndex(index);
 342         if (!item.isNull()) {
 343             itemList.append(item);
 344         }
 345     }
 346
 347     return itemList;
 348 }
 349
 350 KUrl::List DolphinView::selectedUrls() const
 351 {
 352     KUrl::List urls;
 353     const KFileItemList list = selectedItems();
 354     foreach (const KFileItem &item, list) {
 355         urls.append(item.url());
 356     }
 357     return urls;
 358 }
 359
 360 int DolphinView::selectedItemsCount() const
 361 {
 362     return m_viewAccessor.itemView()->selectionModel()->selectedIndexes().count();
 363 }
 364
 365 void DolphinView::setContentsPosition(int x, int y)
 366 {
 367     QAbstractItemView* view = m_viewAccessor.itemView();
 368     view->horizontalScrollBar()->setValue(x);
 369     view->verticalScrollBar()->setValue(y);
 370
 371     m_loadingDirectory = false;
 372 }
 373
 374 QPoint DolphinView::contentsPosition() const
 375 {
 376     const int x = m_viewAccessor.itemView()->horizontalScrollBar()->value();
 377     const int y = m_viewAccessor.itemView()->verticalScrollBar()->value();
 378     return QPoint(x, y);
 379 }
 380
 381 void DolphinView::setZoomLevel(int level)
 382 {
 383     if (level < ZoomLevelInfo::minimumLevel()) {
 384         level = ZoomLevelInfo::minimumLevel();
 385     } else if (level > ZoomLevelInfo::maximumLevel()) {
 386         level = ZoomLevelInfo::maximumLevel();
 387     }
 388
 389     if (level != zoomLevel()) {
 390         m_controller->setZoomLevel(level);
 391         emit zoomLevelChanged(level);
 392     }
 393 }
 394
 395 int DolphinView::zoomLevel() const
 396 {
 397     return m_controller->zoomLevel();
 398 }
 399
 400 void DolphinView::setSorting(Sorting sorting)
 401 {
 402     if (sorting != this->sorting()) {
 403         updateSorting(sorting);
 404     }
 405 }
 406
 407 DolphinView::Sorting DolphinView::sorting() const
 408 {
 409     return m_viewAccessor.proxyModel()->sorting();
 410 }
 411
 412 void DolphinView::setSortOrder(Qt::SortOrder order)
 413 {
 414     if (sortOrder() != order) {
 415         updateSortOrder(order);
 416     }
 417 }
 418
 419 Qt::SortOrder DolphinView::sortOrder() const
 420 {
 421     return m_viewAccessor.proxyModel()->sortOrder();
 422 }
 423
 424 void DolphinView::setSortFoldersFirst(bool foldersFirst)
 425 {
 426     if (sortFoldersFirst() != foldersFirst) {
 427         updateSortFoldersFirst(foldersFirst);
 428     }
 429 }
 430
 431 bool DolphinView::sortFoldersFirst() const
 432 {
 433     return m_viewAccessor.proxyModel()->sortFoldersFirst();
 434 }
 435
 436 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 437 {
 438     const KUrl viewPropsUrl = rootUrl();
 439     ViewProperties props(viewPropsUrl);
 440     props.setAdditionalInfo(info);
 441     m_viewAccessor.itemDelegate()->setShowInformation(info);
 442
 443     emit additionalInfoChanged();
 444
 445     if (m_viewAccessor.reloadOnAdditionalInfoChange()) {
 446         loadDirectory(viewPropsUrl);
 447     }
 448 }
 449
 450 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 451 {
 452     return m_viewAccessor.itemDelegate()->showInformation();
 453 }
 454
 455 void DolphinView::reload()
 456 {
 457     setUrl(url());
 458     loadDirectory(url(), true);
 459 }
 460
 461 void DolphinView::refresh()
 462 {
 463     m_ignoreViewProperties = false;
 464
 465     const bool oldActivationState = m_active;
 466     const int oldZoomLevel = m_controller->zoomLevel();
 467     m_active = true;
 468
 469     createView();
 470     applyViewProperties();
 471     reload();
 472
 473     setActive(oldActivationState);
 474     updateZoomLevel(oldZoomLevel);
 475 }
 476
 477 void DolphinView::updateView(const KUrl& url, const KUrl& rootUrl)
 478 {
 479     Q_UNUSED(rootUrl); // TODO: remove after columnview-cleanup has been finished
 480
 481     if (m_controller->url() == url) {
 482         return;
 483     }
 484
 485     m_controller->setUrl(url); // emits urlChanged, which we forward
 486     m_viewAccessor.prepareUrlChange(url);
 487     applyViewProperties();
 488     loadDirectory(url);
 489
 490     // When changing the URL there is no need to keep the version
 491     // data of the previous URL.
 492     m_viewAccessor.dirModel()->clearVersionData();
 493
 494     emit startedPathLoading(url);
 495 }
 496
 497 void DolphinView::setNameFilter(const QString& nameFilter)
 498 {
 499     m_controller->setNameFilter(nameFilter);
 500 }
 501
 502 void DolphinView::calculateItemCount(int& fileCount,
 503                                      int& folderCount,
 504                                      KIO::filesize_t& totalFileSize) const
 505 {
 506     foreach (const KFileItem& item, m_viewAccessor.dirLister()->items()) {
 507         if (item.isDir()) {
 508             ++folderCount;
 509         } else {
 510             ++fileCount;
 511             totalFileSize += item.size();
 512         }
 513     }
 514 }
 515
 516 QString DolphinView::statusBarText() const
 517 {
 518     QString text;
 519     int folderCount = 0;
 520     int fileCount = 0;
 521     KIO::filesize_t totalFileSize = 0;
 522
 523     if (hasSelection()) {
 524         // give a summary of the status of the selected files
 525         const KFileItemList list = selectedItems();
 526         if (list.isEmpty()) {
 527             // when an item is triggered, it is temporary selected but selectedItems()
 528             // will return an empty list
 529             return text;
 530         }
 531
 532         KFileItemList::const_iterator it = list.begin();
 533         const KFileItemList::const_iterator end = list.end();
 534         while (it != end) {
 535             const KFileItem& item = *it;
 536             if (item.isDir()) {
 537                 ++folderCount;
 538             } else {
 539                 ++fileCount;
 540                 totalFileSize += item.size();
 541             }
 542             ++it;
 543         }
 544
 545         if (folderCount + fileCount == 1) {
 546             // if only one item is selected, show the filename
 547             const QString name = list.first().name();
 548             text = (folderCount == 1) ? i18nc("@info:status", "<filename>%1</filename> selected", name) :
 549                                         i18nc("@info:status", "<filename>%1</filename> selected (%2)",
 550                                               name, KIO::convertSize(totalFileSize));
 551         } else {
 552             // at least 2 items are selected
 553             const QString foldersText = i18ncp("@info:status", "1 Folder selected", "%1 Folders selected", folderCount);
 554             const QString filesText = i18ncp("@info:status", "1 File selected", "%1 Files selected", fileCount);
 555             if ((folderCount > 0) && (fileCount > 0)) {
 556                 text = i18nc("@info:status folders, files (size)", "%1, %2 (%3)",
 557                              foldersText, filesText, KIO::convertSize(totalFileSize));
 558             } else if (fileCount > 0) {
 559                 text = i18nc("@info:status files (size)", "%1 (%2)", filesText, KIO::convertSize(totalFileSize));
 560             } else {
 561                 Q_ASSERT(folderCount > 0);
 562                 text = foldersText;
 563             }
 564         }
 565     } else {
 566         calculateItemCount(fileCount, folderCount, totalFileSize);
 567         text = KIO::itemsSummaryString(fileCount + folderCount,
 568                                        fileCount, folderCount,
 569                                        totalFileSize, true);
 570     }
 571
 572     return text;
 573 }
 574
 575 QList<QAction*> DolphinView::versionControlActions(const KFileItemList& items) const
 576 {
 577     return m_controller->versionControlActions(items);
 578 }
 579
 580 void DolphinView::setUrl(const KUrl& url)
 581 {
 582     m_newFileNames.clear();
 583     updateView(url, KUrl());
 584 }
 585
 586 void DolphinView::changeSelection(const KFileItemList& selection)
 587 {
 588     clearSelection();
 589     if (selection.isEmpty()) {
 590         return;
 591     }
 592     const KUrl& baseUrl = url();
 593     KUrl url;
 594     QItemSelection newSelection;
 595     foreach(const KFileItem& item, selection) {
 596         url = item.url().upUrl();
 597         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 598             QModelIndex index = m_viewAccessor.proxyModel()->mapFromSource(m_viewAccessor.dirModel()->indexForItem(item));
 599             newSelection.select(index, index);
 600         }
 601     }
 602     m_viewAccessor.itemView()->selectionModel()->select(newSelection,
 603                                          QItemSelectionModel::ClearAndSelect
 604                                          | QItemSelectionModel::Current);
 605 }
 606
 607 void DolphinView::renameSelectedItems()
 608 {
 609     KFileItemList items = selectedItems();
 610     const int itemCount = items.count();
 611     if (itemCount < 1) {
 612         return;
 613     }
 614
 615     if (itemCount > 1) {
 616         // More than one item has been selected for renaming. Open
 617         // a rename dialog and rename all items afterwards.
 618         QPointer<RenameDialog> dialog = new RenameDialog(this, items);
 619         if (dialog->exec() == QDialog::Rejected) {
 620             delete dialog;
 621             return;
 622         }
 623
 624         const QString newName = dialog->newName();
 625         if (newName.isEmpty()) {
 626             emit errorMessage(dialog->errorString());
 627             delete dialog;
 628             return;
 629         }
 630         delete dialog;
 631
 632         // the selection would be invalid after renaming the items, so just clear
 633         // it before
 634         clearSelection();
 635
 636         // TODO: check how this can be integrated into KIO::FileUndoManager/KonqOperations
 637         // as one operation instead of n rename operations like it is done now...
 638         Q_ASSERT(newName.contains('#'));
 639
 640         // currently the items are sorted by the selection order, resort
 641         // them by the file name
 642         qSort(items.begin(), items.end(), lessThan);
 643
 644         // iterate through all selected items and rename them...
 645         int index = 1;
 646         foreach (const KFileItem& item, items) {
 647             const KUrl& oldUrl = item.url();
 648             QString number;
 649             number.setNum(index++);
 650
 651             QString name = newName;
 652             name.replace('#', number);
 653
 654             if (oldUrl.fileName() != name) {
 655                 KUrl newUrl = oldUrl;
 656                 newUrl.setFileName(name);
 657                 KonqOperations::rename(this, oldUrl, newUrl);
 658             }
 659         }
 660     } else if (DolphinSettings::instance().generalSettings()->renameInline()) {
 661         Q_ASSERT(itemCount == 1);
 662         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForItem(items.first());
 663         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
 664         m_viewAccessor.itemView()->edit(proxyIndex);
 665     } else {
 666         Q_ASSERT(itemCount == 1);
 667
 668         QPointer<RenameDialog> dialog = new RenameDialog(this, items);
 669         if (dialog->exec() == QDialog::Rejected) {
 670             delete dialog;
 671             return;
 672         }
 673
 674         const QString newName = dialog->newName();
 675         if (newName.isEmpty()) {
 676             emit errorMessage(dialog->errorString());
 677             delete dialog;
 678             return;
 679         }
 680         delete dialog;
 681
 682         const KUrl& oldUrl = items.first().url();
 683         KUrl newUrl = oldUrl;
 684         newUrl.setFileName(newName);
 685         KonqOperations::rename(this, oldUrl, newUrl);
 686     }
 687
 688     // assure that the current index remains visible when KDirLister
 689     // will notify the view about changed items
 690     m_assureVisibleCurrentIndex = true;
 691 }
 692
 693 void DolphinView::trashSelectedItems()
 694 {
 695     const KUrl::List list = simplifiedSelectedUrls();
 696     KonqOperations::del(this, KonqOperations::TRASH, list);
 697 }
 698
 699 void DolphinView::deleteSelectedItems()
 700 {
 701     const KUrl::List list = simplifiedSelectedUrls();
 702     const bool del = KonqOperations::askDeleteConfirmation(list,
 703                      KonqOperations::DEL,
 704                      KonqOperations::DEFAULT_CONFIRMATION,
 705                      this);
 706
 707     if (del) {
 708         KIO::Job* job = KIO::del(list);
 709         connect(job, SIGNAL(result(KJob*)),
 710                 this, SLOT(slotDeleteFileFinished(KJob*)));
 711     }
 712 }
 713
 714 void DolphinView::cutSelectedItems()
 715 {
 716     QMimeData* mimeData = selectionMimeData();
 717     KonqMimeData::addIsCutSelection(mimeData, true);
 718     QApplication::clipboard()->setMimeData(mimeData);
 719 }
 720
 721 void DolphinView::copySelectedItems()
 722 {
 723     QMimeData* mimeData = selectionMimeData();
 724     QApplication::clipboard()->setMimeData(mimeData);
 725 }
 726
 727 void DolphinView::paste()
 728 {
 729     pasteToUrl(url());
 730 }
 731
 732 void DolphinView::pasteIntoFolder()
 733 {
 734     const KFileItemList items = selectedItems();
 735     if ((items.count() == 1) && items.first().isDir()) {
 736         pasteToUrl(items.first().url());
 737     }
 738 }
 739
 740 void DolphinView::setShowPreview(bool show)
 741 {
 742     if (m_showPreview == show) {
 743         return;
 744     }
 745
 746     const KUrl viewPropsUrl = rootUrl();
 747     ViewProperties props(viewPropsUrl);
 748     props.setShowPreview(show);
 749
 750     m_showPreview = show;
 751     const int oldZoomLevel = m_controller->zoomLevel();
 752     emit showPreviewChanged();
 753
 754     // Enabling or disabling the preview might change the icon size of the view.
 755     // As the view does not emit a signal when the icon size has been changed,
 756     // the used zoom level of the controller must be adjusted manually:
 757     updateZoomLevel(oldZoomLevel);
 758 }
 759
 760 void DolphinView::setShowHiddenFiles(bool show)
 761 {
 762     if (m_viewAccessor.dirLister()->showingDotFiles() == show) {
 763         return;
 764     }
 765
 766     const KUrl viewPropsUrl = rootUrl();
 767     ViewProperties props(viewPropsUrl);
 768     props.setShowHiddenFiles(show);
 769
 770     m_viewAccessor.dirLister()->setShowingDotFiles(show);
 771     emit showHiddenFilesChanged();
 772 }
 773
 774 void DolphinView::setCategorizedSorting(bool categorized)
 775 {
 776     if (categorized == categorizedSorting()) {
 777         return;
 778     }
 779
 780     // setCategorizedSorting(true) may only get invoked
 781     // if the view supports categorized sorting
 782     Q_ASSERT(!categorized || supportsCategorizedSorting());
 783
 784     ViewProperties props(rootUrl());
 785     props.setCategorizedSorting(categorized);
 786     props.save();
 787
 788     m_storedCategorizedSorting = categorized;
 789     m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 790
 791     emit categorizedSortingChanged();
 792 }
 793
 794 void DolphinView::toggleSortOrder()
 795 {
 796     const Qt::SortOrder order = (sortOrder() == Qt::AscendingOrder) ?
 797                                 Qt::DescendingOrder :
 798                                 Qt::AscendingOrder;
 799     setSortOrder(order);
 800 }
 801
 802 void DolphinView::toggleSortFoldersFirst()
 803 {
 804     setSortFoldersFirst(!sortFoldersFirst());
 805 }
 806
 807 void DolphinView::toggleAdditionalInfo(QAction* action)
 808 {
 809     const KFileItemDelegate::Information info =
 810         static_cast<KFileItemDelegate::Information>(action->data().toInt());
 811
 812     KFileItemDelegate::InformationList list = additionalInfo();
 813
 814     const bool show = action->isChecked();
 815
 816     const int index = list.indexOf(info);
 817     const bool containsInfo = (index >= 0);
 818     if (show && !containsInfo) {
 819         list.append(info);
 820         setAdditionalInfo(list);
 821     } else if (!show && containsInfo) {
 822         list.removeAt(index);
 823         setAdditionalInfo(list);
 824         Q_ASSERT(list.indexOf(info) < 0);
 825     }
 826 }
 827
 828 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 829 {
 830     QWidget::mouseReleaseEvent(event);
 831     setActive(true);
 832 }
 833
 834 void DolphinView::wheelEvent(QWheelEvent* event)
 835 {
 836     if (event->modifiers() & Qt::ControlModifier) {
 837         const int delta = event->delta();
 838         const int level = zoomLevel();
 839         if (delta > 0) {
 840             setZoomLevel(level + 1);
 841         } else if (delta < 0) {
 842             setZoomLevel(level - 1);
 843         }
 844         event->accept();
 845     }
 846 }
 847
 848 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 849 {
 850     switch (event->type()) {
 851     case QEvent::FocusIn:
 852         if (watched == m_viewAccessor.itemView()) {
 853             m_controller->requestActivation();
 854         }
 855         break;
 856
 857     case QEvent::MouseButtonPress:
 858         if ((watched == m_viewAccessor.itemView()->viewport()) && (m_expandedDragSource != 0)) {
 859             // Listening to a mousebutton press event to delete expanded views is a
 860             // workaround, as it seems impossible for the FolderExpander to know when
 861             // a dragging outside a view has been finished. However it works quite well:
 862             // A mousebutton press event indicates that a drag operation must be
 863             // finished already.
 864             m_expandedDragSource->deleteLater();
 865             m_expandedDragSource = 0;
 866         }
 867         break;
 868
 869     case QEvent::DragEnter:
 870         if (watched == m_viewAccessor.itemView()->viewport()) {
 871             setActive(true);
 872         }
 873         break;
 874
 875     case QEvent::KeyPress:
 876         if (watched == m_viewAccessor.itemView()) {
 877             // clear the selection when Escape has been pressed
 878             QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
 879             if (keyEvent->key() == Qt::Key_Escape) {
 880                 clearSelection();
 881             }
 882         }
 883         break;
 884
 885     default:
 886         break;
 887     }
 888
 889     return QWidget::eventFilter(watched, event);
 890 }
 891
 892 void DolphinView::activate()
 893 {
 894     setActive(true);
 895 }
 896
 897 void DolphinView::triggerItem(const KFileItem& item)
 898 {
 899     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 900     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 901         // items are selected by the user, hence don't trigger the
 902         // item specified by 'index'
 903         return;
 904     }
 905
 906     // TODO: the m_isContextMenuOpen check is a workaround for Qt-issue 207192
 907     if (item.isNull() || m_isContextMenuOpen) {
 908         return;
 909     }
 910
 911     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 912 }
 913
 914 void DolphinView::emitDelayedSelectionChangedSignal()
 915 {
 916     // Invoke emitSelectionChangedSignal() with a delay of 300 ms. This assures
 917     // that fast selection changes don't result in expensive operations to
 918     // collect all file items for the signal (see DolphinView::selectedItems()).
 919     m_selectionChangedTimer->start();
 920 }
 921
 922 void DolphinView::emitSelectionChangedSignal()
 923 {
 924     emit selectionChanged(DolphinView::selectedItems());
 925 }
 926
 927 void DolphinView::openContextMenu(const QPoint& pos,
 928                                   const QList<QAction*>& customActions)
 929 {
 930     KFileItem item;
 931     const QModelIndex index = m_viewAccessor.itemView()->indexAt(pos);
 932     if (index.isValid() && (index.column() == DolphinModel::Name)) {
 933         const QModelIndex dolphinModelIndex = m_viewAccessor.proxyModel()->mapToSource(index);
 934         item = m_viewAccessor.dirModel()->itemForIndex(dolphinModelIndex);
 935     }
 936
 937     m_isContextMenuOpen = true; // TODO: workaround for Qt-issue 207192
 938     emit requestContextMenu(item, url(), customActions);
 939     m_isContextMenuOpen = false;
 940 }
 941
 942 void DolphinView::dropUrls(const KFileItem& destItem,
 943                            const KUrl& destPath,
 944                            QDropEvent* event)
 945 {
 946     addNewFileNames(event->mimeData());
 947     DragAndDropHelper::instance().dropUrls(destItem, destPath, event, this);
 948 }
 949
 950 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 951 {
 952     ViewProperties props(rootUrl());
 953     props.setSorting(sorting);
 954
 955     m_viewAccessor.proxyModel()->setSorting(sorting);
 956
 957     emit sortingChanged(sorting);
 958 }
 959
 960 void DolphinView::updateSortOrder(Qt::SortOrder order)
 961 {
 962     ViewProperties props(rootUrl());
 963     props.setSortOrder(order);
 964
 965     m_viewAccessor.proxyModel()->setSortOrder(order);
 966
 967     emit sortOrderChanged(order);
 968 }
 969
 970 void DolphinView::updateSortFoldersFirst(bool foldersFirst)
 971 {
 972     ViewProperties props(rootUrl());
 973     props.setSortFoldersFirst(foldersFirst);
 974
 975     m_viewAccessor.proxyModel()->setSortFoldersFirst(foldersFirst);
 976
 977     emit sortFoldersFirstChanged(foldersFirst);
 978 }
 979
 980 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 981 {
 982     ViewProperties props(rootUrl());
 983     props.setAdditionalInfo(info);
 984     props.save();
 985
 986     m_viewAccessor.itemDelegate()->setShowInformation(info);
 987
 988     emit additionalInfoChanged();
 989 }
 990
 991 void DolphinView::updateAdditionalInfoActions(KActionCollection* collection)
 992 {
 993     const bool enable = (m_mode == DolphinView::DetailsView) ||
 994                         (m_mode == DolphinView::IconsView);
 995
 996     QAction* showSizeInfo = collection->action("show_size_info");
 997     QAction* showDateInfo = collection->action("show_date_info");
 998     QAction* showPermissionsInfo = collection->action("show_permissions_info");
 999     QAction* showOwnerInfo = collection->action("show_owner_info");
1000     QAction* showGroupInfo = collection->action("show_group_info");
1001     QAction* showMimeInfo = collection->action("show_mime_info");
1002
1003     showSizeInfo->setChecked(false);
1004     showDateInfo->setChecked(false);
1005     showPermissionsInfo->setChecked(false);
1006     showOwnerInfo->setChecked(false);
1007     showGroupInfo->setChecked(false);
1008     showMimeInfo->setChecked(false);
1009
1010     showSizeInfo->setEnabled(enable);
1011     showDateInfo->setEnabled(enable);
1012     showPermissionsInfo->setEnabled(enable);
1013     showOwnerInfo->setEnabled(enable);
1014     showGroupInfo->setEnabled(enable);
1015     showMimeInfo->setEnabled(enable);
1016
1017     foreach (KFileItemDelegate::Information info, m_viewAccessor.itemDelegate()->showInformation()) {
1018         switch (info) {
1019         case KFileItemDelegate::Size:
1020             showSizeInfo->setChecked(true);
1021             break;
1022         case KFileItemDelegate::ModificationTime:
1023             showDateInfo->setChecked(true);
1024             break;
1025         case KFileItemDelegate::Permissions:
1026             showPermissionsInfo->setChecked(true);
1027             break;
1028         case KFileItemDelegate::Owner:
1029             showOwnerInfo->setChecked(true);
1030             break;
1031         case KFileItemDelegate::OwnerAndGroup:
1032             showGroupInfo->setChecked(true);
1033             break;
1034         case KFileItemDelegate::FriendlyMimeType:
1035             showMimeInfo->setChecked(true);
1036             break;
1037         default:
1038             break;
1039         }
1040     }
1041 }
1042
1043 QPair<bool, QString> DolphinView::pasteInfo() const
1044 {
1045     return KonqOperations::pasteInfo(url());
1046 }
1047
1048 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
1049 {
1050     m_tabsForFiles = tabsForFiles;
1051 }
1052
1053 bool DolphinView::isTabsForFilesEnabled() const
1054 {
1055     return m_tabsForFiles;
1056 }
1057
1058 void DolphinView::activateItem(const KUrl& url)
1059 {
1060     m_activeItemUrl = url;
1061 }
1062
1063 bool DolphinView::itemsExpandable() const
1064 {
1065     return m_viewAccessor.itemsExpandable();
1066 }
1067
1068 void DolphinView::deleteWhenNotDragSource(QAbstractItemView *view)
1069 {
1070     if (view == 0)
1071         return;
1072
1073     if (DragAndDropHelper::instance().isDragSource(view)) {
1074         // We must store for later deletion.
1075         if (m_expandedDragSource != 0) {
1076             // The old stored view is obviously not the drag source anymore.
1077             m_expandedDragSource->deleteLater();
1078             m_expandedDragSource = 0;
1079         }
1080         view->hide();
1081         m_expandedDragSource = view;
1082     }
1083     else {
1084         view->deleteLater();
1085     }
1086 }
1087
1088 void DolphinView::observeCreatedItem(const KUrl& url)
1089 {
1090     m_createdItemUrl = url;
1091     connect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
1092             this, SLOT(selectAndScrollToCreatedItem()));
1093 }
1094
1095 void DolphinView::selectAndScrollToCreatedItem()
1096 {
1097     const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_createdItemUrl);
1098     if (dirIndex.isValid()) {
1099         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1100         m_viewAccessor.itemView()->setCurrentIndex(proxyIndex);
1101     }
1102
1103     disconnect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
1104                this, SLOT(selectAndScrollToCreatedItem()));
1105     m_createdItemUrl = KUrl();
1106 }
1107
1108 void DolphinView::restoreSelection()
1109 {
1110     disconnect(m_viewAccessor.dirLister(), SIGNAL(completed()), this, SLOT(restoreSelection()));
1111     changeSelection(m_selectedItems);
1112 }
1113
1114 void DolphinView::emitContentsMoved()
1115 {
1116     // only emit the contents moved signal if no directory loading is ongoing
1117     // (this would reset the contents position always to (0, 0))
1118     if (!m_loadingDirectory) {
1119         const QPoint pos(contentsPosition());
1120         emit contentsMoved(pos.x(), pos.y());
1121     }
1122 }
1123
1124 void DolphinView::showHoverInformation(const KFileItem& item)
1125 {
1126     emit requestItemInfo(item);
1127 }
1128
1129 void DolphinView::clearHoverInformation()
1130 {
1131     emit requestItemInfo(KFileItem());
1132 }
1133
1134 void DolphinView::slotDeleteFileFinished(KJob* job)
1135 {
1136     if (job->error() == 0) {
1137         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1138     } else if (job->error() != KIO::ERR_USER_CANCELED) {
1139         emit errorMessage(job->errorString());
1140     }
1141 }
1142
1143 void DolphinView::slotRequestUrlChange(const KUrl& url)
1144 {
1145     emit requestUrlChange(url);
1146     m_controller->setUrl(url);
1147 }
1148
1149 void DolphinView::slotDirListerCompleted()
1150 {
1151     if (!m_activeItemUrl.isEmpty()) {
1152         // assure that the current item remains visible
1153         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_activeItemUrl);
1154         if (dirIndex.isValid()) {
1155             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1156             QAbstractItemView* view = m_viewAccessor.itemView();
1157             const bool clearSelection = !hasSelection();
1158             view->setCurrentIndex(proxyIndex);
1159             if (clearSelection) {
1160                 view->clearSelection();
1161             }
1162             m_activeItemUrl.clear();
1163         }
1164     }
1165
1166     if (!m_newFileNames.isEmpty()) {
1167         // select all newly added items created by a paste operation or
1168         // a drag & drop operation
1169         const int rowCount = m_viewAccessor.proxyModel()->rowCount();
1170         QItemSelection selection;
1171         for (int row = 0; row < rowCount; ++row) {
1172             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->index(row, 0);
1173             const QModelIndex dirIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
1174             const KUrl url = m_viewAccessor.dirModel()->itemForIndex(dirIndex).url();
1175             if (m_newFileNames.contains(url.fileName())) {
1176                 selection.merge(QItemSelection(proxyIndex, proxyIndex), QItemSelectionModel::Select);
1177             }
1178         }
1179         m_viewAccessor.itemView()->selectionModel()->select(selection, QItemSelectionModel::Select);
1180
1181         m_newFileNames.clear();
1182     }
1183 }
1184
1185 void DolphinView::slotRefreshItems()
1186 {
1187     if (m_assureVisibleCurrentIndex) {
1188         m_assureVisibleCurrentIndex = false;
1189         m_viewAccessor.itemView()->scrollTo(m_viewAccessor.itemView()->currentIndex());
1190     }
1191 }
1192
1193 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1194 {
1195     if (!url.isValid()) {
1196         const QString location(url.pathOrUrl());
1197         if (location.isEmpty()) {
1198             emit errorMessage(i18nc("@info:status", "The location is empty."));
1199         } else {
1200             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1201         }
1202         return;
1203     }
1204
1205     m_loadingDirectory = true;
1206
1207     if (reload) {
1208         m_selectedItems = selectedItems();
1209         connect(m_viewAccessor.dirLister(), SIGNAL(completed()), this, SLOT(restoreSelection()));
1210     }
1211
1212     m_viewAccessor.dirLister()->stop();
1213     m_viewAccessor.dirLister()->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
1214 }
1215
1216 void DolphinView::applyViewProperties()
1217 {
1218     if (m_ignoreViewProperties) {
1219         return;
1220     }
1221
1222     const ViewProperties props(rootUrl());
1223
1224     const Mode mode = props.viewMode();
1225     if (m_mode != mode) {
1226         const int oldZoomLevel = m_controller->zoomLevel();
1227
1228         m_mode = mode;
1229         createView();
1230         emit modeChanged();
1231
1232         updateZoomLevel(oldZoomLevel);
1233     }
1234     if (m_viewAccessor.itemView() == 0) {
1235         createView();
1236     }
1237     Q_ASSERT(m_viewAccessor.itemView() != 0);
1238     Q_ASSERT(m_viewAccessor.itemDelegate() != 0);
1239
1240     const bool showHiddenFiles = props.showHiddenFiles();
1241     if (showHiddenFiles != m_viewAccessor.dirLister()->showingDotFiles()) {
1242         m_viewAccessor.dirLister()->setShowingDotFiles(showHiddenFiles);
1243         emit showHiddenFilesChanged();
1244     }
1245
1246     m_storedCategorizedSorting = props.categorizedSorting();
1247     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1248     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
1249         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
1250         emit categorizedSortingChanged();
1251     }
1252
1253     const DolphinView::Sorting sorting = props.sorting();
1254     if (sorting != m_viewAccessor.proxyModel()->sorting()) {
1255         m_viewAccessor.proxyModel()->setSorting(sorting);
1256         emit sortingChanged(sorting);
1257     }
1258
1259     const Qt::SortOrder sortOrder = props.sortOrder();
1260     if (sortOrder != m_viewAccessor.proxyModel()->sortOrder()) {
1261         m_viewAccessor.proxyModel()->setSortOrder(sortOrder);
1262         emit sortOrderChanged(sortOrder);
1263     }
1264
1265     const bool sortFoldersFirst = props.sortFoldersFirst();
1266     if (sortFoldersFirst != m_viewAccessor.proxyModel()->sortFoldersFirst()) {
1267         m_viewAccessor.proxyModel()->setSortFoldersFirst(sortFoldersFirst);
1268         emit sortFoldersFirstChanged(sortFoldersFirst);
1269     }
1270
1271     KFileItemDelegate::InformationList info = props.additionalInfo();
1272     if (info != m_viewAccessor.itemDelegate()->showInformation()) {
1273         m_viewAccessor.itemDelegate()->setShowInformation(info);
1274         emit additionalInfoChanged();
1275     }
1276
1277     const bool showPreview = props.showPreview();
1278     if (showPreview != m_showPreview) {
1279         m_showPreview = showPreview;
1280         const int oldZoomLevel = m_controller->zoomLevel();
1281         emit showPreviewChanged();
1282
1283         // Enabling or disabling the preview might change the icon size of the view.
1284         // As the view does not emit a signal when the icon size has been changed,
1285         // the used zoom level of the controller must be adjusted manually:
1286         updateZoomLevel(oldZoomLevel);
1287     }
1288
1289     if (DolphinSettings::instance().generalSettings()->globalViewProps()) {
1290         // During the lifetime of a DolphinView instance the global view properties
1291         // should not be changed. This allows e. g. to split a view and use different
1292         // view properties for each view.
1293         m_ignoreViewProperties = true;
1294     }
1295 }
1296
1297 void DolphinView::createView()
1298 {
1299     deleteView();
1300     Q_ASSERT(m_viewAccessor.itemView() == 0);
1301     m_viewAccessor.createView(this, m_controller, m_mode);
1302
1303     QAbstractItemView* view = m_viewAccessor.itemView();
1304     Q_ASSERT(view != 0);
1305     view->installEventFilter(this);
1306     view->viewport()->installEventFilter(this);
1307
1308
1309     /* TODO: enable folder expanding again later
1310
1311     if (m_mode != ColumnView) {
1312         // Give the view the ability to auto-expand its directories on hovering
1313         // (the column view takes care about this itself). If the details view
1314         // uses expandable folders, the auto-expanding should be used always.
1315         FolderExpander* folderExpander = new FolderExpander(view, m_viewAccessor.proxyModel());
1316         folderExpander->setEnabled(m_viewAccessor.hasExpandableFolders());
1317         connect(folderExpander, SIGNAL(enterDir(const QModelIndex&)),
1318                 m_controller, SLOT(triggerItem(const QModelIndex&)));
1319
1320     }
1321     else {
1322         // Listen out for requests to delete the current column.
1323         connect(m_viewAccessor.columnsContainer(), SIGNAL(requestColumnDeletion(QAbstractItemView*)),
1324                 this, SLOT(deleteWhenNotDragSource(QAbstractItemView*)));
1325     }*/
1326
1327     m_controller->setItemView(view);
1328
1329     // When changing the view mode, the selection is lost due to reinstantiating
1330     // a new item view with a custom selection model. Pass the ownership of the
1331     // selection model to DolphinView, so that it can be shared by all item views.
1332     if (m_selectionModel != 0) {
1333         view->setSelectionModel(m_selectionModel);
1334     } else {
1335         m_selectionModel = view->selectionModel();
1336     }
1337     m_selectionModel->setParent(this);
1338
1339     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
1340             this, SLOT(emitDelayedSelectionChangedSignal()));
1341     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
1342             this, SLOT(emitContentsMoved()));
1343     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
1344             this, SLOT(emitContentsMoved()));
1345
1346     setFocusProxy(m_viewAccessor.layoutTarget());
1347     m_topLayout->insertWidget(1, m_viewAccessor.layoutTarget());
1348 }
1349
1350 void DolphinView::deleteView()
1351 {
1352     QAbstractItemView* view = m_viewAccessor.itemView();
1353     if (view != 0) {
1354         // It's important to set the keyboard focus to the parent
1355         // before deleting the view: Otherwise when having a split
1356         // view the other view will get the focus and will request
1357         // an activation (see DolphinView::eventFilter()).
1358         setFocusProxy(0);
1359         setFocus();
1360
1361         m_topLayout->removeWidget(view);
1362         view->close();
1363
1364         disconnect(view);
1365         m_controller->disconnect(view);
1366         view->disconnect();
1367
1368         // TODO: move this code into ViewAccessor::deleteView()
1369         deleteWhenNotDragSource(view);
1370         view = 0;
1371
1372         m_viewAccessor.deleteView();
1373     }
1374 }
1375
1376 void DolphinView::pasteToUrl(const KUrl& url)
1377 {
1378     addNewFileNames(QApplication::clipboard()->mimeData());
1379     KonqOperations::doPaste(this, url);
1380 }
1381
1382 void DolphinView::updateZoomLevel(int oldZoomLevel)
1383 {
1384     const int newZoomLevel = ZoomLevelInfo::zoomLevelForIconSize(m_viewAccessor.itemView()->iconSize());
1385     if (oldZoomLevel != newZoomLevel) {
1386         m_controller->setZoomLevel(newZoomLevel);
1387         emit zoomLevelChanged(newZoomLevel);
1388     }
1389 }
1390
1391 KUrl::List DolphinView::simplifiedSelectedUrls() const
1392 {
1393     KUrl::List list = selectedUrls();
1394     if (itemsExpandable() ) {
1395         list = KDirModel::simplifiedUrlList(list);
1396     }
1397     return list;
1398 }
1399
1400 QMimeData* DolphinView::selectionMimeData() const
1401 {
1402     const QAbstractItemView* view = m_viewAccessor.itemView();
1403     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
1404     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
1405     return m_viewAccessor.dirModel()->mimeData(selection.indexes());
1406 }
1407
1408 void DolphinView::addNewFileNames(const QMimeData* mimeData)
1409 {
1410     const KUrl::List urls = KUrl::List::fromMimeData(mimeData);
1411     foreach (const KUrl& url, urls) {
1412         m_newFileNames.insert(url.fileName());
1413     }
1414 }
1415
1416 DolphinView::ViewAccessor::ViewAccessor(DolphinSortFilterProxyModel* proxyModel) :
1417     m_iconsView(0),
1418     m_detailsView(0),
1419     m_columnsContainer(0),
1420     m_proxyModel(proxyModel)
1421 {
1422 }
1423
1424 void DolphinView::ViewAccessor::createView(QWidget* parent,
1425                                            DolphinController* controller,
1426                                            Mode mode)
1427 {
1428     Q_ASSERT(itemView() == 0);
1429
1430     switch (mode) {
1431     case IconsView:
1432         m_iconsView = new DolphinIconsView(parent, controller, m_proxyModel);
1433         break;
1434
1435     case DetailsView:
1436         m_detailsView = new DolphinDetailsView(parent, controller, m_proxyModel);
1437         break;
1438
1439     case ColumnView:
1440         m_columnsContainer = new DolphinColumnViewContainer(parent, controller);
1441         break;
1442
1443     default:
1444         Q_ASSERT(false);
1445     }
1446 }
1447
1448 void DolphinView::ViewAccessor::deleteView()
1449 {
1450     // TODO: Move the deleteWhenNotDragSource() code into the view
1451     // accessor, so that creating and deleting is fully done by
1452     // the view accessor.
1453     m_iconsView = 0;
1454     m_detailsView = 0;
1455
1456     m_columnsContainer->deleteLater();
1457     m_columnsContainer = 0;
1458 }
1459
1460
1461 void DolphinView::ViewAccessor::prepareUrlChange(const KUrl& url)
1462 {
1463     if (m_columnsContainer != 0) {
1464         m_columnsContainer->showColumn(url);
1465     }
1466 }
1467
1468 QAbstractItemView* DolphinView::ViewAccessor::itemView() const
1469 {
1470     if (m_iconsView != 0) {
1471         return m_iconsView;
1472     }
1473
1474     if (m_detailsView != 0) {
1475         return m_detailsView;
1476     }
1477
1478     if (m_columnsContainer != 0) {
1479         return m_columnsContainer->activeColumn();
1480     }
1481
1482     return 0;
1483 }
1484
1485 KFileItemDelegate* DolphinView::ViewAccessor::itemDelegate() const
1486 {
1487     return static_cast<KFileItemDelegate*>(itemView()->itemDelegate());
1488 }
1489
1490 QWidget* DolphinView::ViewAccessor::layoutTarget() const
1491 {
1492     if (m_columnsContainer != 0) {
1493         return m_columnsContainer;
1494     }
1495     return itemView();
1496 }
1497
1498 KUrl DolphinView::ViewAccessor::rootUrl() const
1499 {
1500     return (m_columnsContainer != 0) ? m_columnsContainer->rootUrl() : KUrl();
1501 }
1502
1503 bool DolphinView::ViewAccessor::supportsCategorizedSorting() const
1504 {
1505     return m_iconsView != 0;
1506 }
1507
1508 bool DolphinView::ViewAccessor::hasExpandableFolders() const
1509 {
1510     const DolphinSettings& settings = DolphinSettings::instance();
1511     return settings.generalSettings()->autoExpandFolders() ||
1512            ((m_detailsView != 0) && settings.detailsModeSettings()->expandableFolders());
1513 }
1514
1515 bool DolphinView::ViewAccessor::itemsExpandable() const
1516 {
1517     return (m_detailsView != 0) && m_detailsView->itemsExpandable();
1518 }
1519
1520 bool DolphinView::ViewAccessor::reloadOnAdditionalInfoChange() const
1521 {
1522     // the details view requires no reloading of the directory, as it maps
1523     // the file item delegate info to its columns internally
1524     return m_detailsView != 0;
1525 }
1526
1527
1528 DolphinModel* DolphinView::ViewAccessor::dirModel() const
1529 {
1530     return static_cast<DolphinModel*>(proxyModel()->sourceModel());
1531 }
1532
1533 DolphinSortFilterProxyModel* DolphinView::ViewAccessor::proxyModel() const
1534 {
1535     if (m_columnsContainer != 0) {
1536         return static_cast<DolphinSortFilterProxyModel*>(m_columnsContainer->activeColumn()->model());
1537     }
1538     return m_proxyModel;
1539 }
1540
1541 KDirLister* DolphinView::ViewAccessor::dirLister() const
1542 {
1543     return dirModel()->dirLister();
1544 }
1545
1546 #include "dolphinview.moc"