src/dolphinview.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006-2009 by Peter Penz <peter.penz@gmx.at>             *
   3  *   Copyright (C) 2006 by Gregor Kališnik <gregor@podnapisi.net>          *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  19  ***************************************************************************/
  20
  21 #include "dolphinview.h"
  22
  23 #include <QAbstractItemView>
  24 #include <QApplication>
  25 #include <QClipboard>
  26 #include <QKeyEvent>
  27 #include <QItemSelection>
  28 #include <QBoxLayout>
  29 #include <QTimer>
  30 #include <QScrollBar>
  31
  32 #include <kactioncollection.h>
  33 #include <kcolorscheme.h>
  34 #include <kdirlister.h>
  35 #include <kiconeffect.h>
  36 #include <kfileitem.h>
  37 #include <klocale.h>
  38 #include <kio/deletejob.h>
  39 #include <kio/netaccess.h>
  40 #include <kio/previewjob.h>
  41 #include <kjob.h>
  42 #include <kmenu.h>
  43 #include <kmessagebox.h>
  44 #include <kmimetyperesolver.h>
  45 #include <konq_fileitemcapabilities.h>
  46 #include <konq_operations.h>
  47 #include <konqmimedata.h>
  48 #include <kstringhandler.h>
  49 #include <ktoggleaction.h>
  50 #include <kurl.h>
  51
  52 #include "dolphinmodel.h"
  53 #include "dolphincolumnviewcontainer.h"
  54 #include "dolphincontroller.h"
  55 #include "dolphindetailsview.h"
  56 #include "dolphinfileitemdelegate.h"
  57 #include "dolphinnewmenuobserver.h"
  58 #include "dolphinsortfilterproxymodel.h"
  59 #include "dolphin_detailsmodesettings.h"
  60 #include "dolphiniconsview.h"
  61 #include "dolphin_generalsettings.h"
  62 #include "draganddrophelper.h"
  63 #include "renamedialog.h"
  64 #include "settings/dolphinsettings.h"
  65 #include "viewproperties.h"
  66 #include "zoomlevelinfo.h"
  67 #include "dolphindetailsviewexpander.h"
  68
  69 /**
  70  * Helper function for sorting items with qSort() in
  71  * DolphinView::renameSelectedItems().
  72  */
  73 bool lessThan(const KFileItem& item1, const KFileItem& item2)
  74 {
  75     return KStringHandler::naturalCompare(item1.name(), item2.name()) < 0;
  76 }
  77
  78 DolphinView::DolphinView(QWidget* parent,
  79                          const KUrl& url,
  80                          DolphinSortFilterProxyModel* proxyModel) :
  81     QWidget(parent),
  82     m_active(true),
  83     m_showPreview(false),
  84     m_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_restoredContentsPosition(),
  99     m_createdItemUrl(),
 100     m_selectedItems(),
 101     m_newFileNames()
 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, SLOT(slotRedirection(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 }
 165
 166 const KUrl& DolphinView::url() const
 167 {
 168     return m_controller->url();
 169 }
 170
 171 KUrl DolphinView::rootUrl() const
 172 {
 173     const KUrl viewUrl = url();
 174     const KUrl root = m_viewAccessor.rootUrl();
 175     if (root.isEmpty() || !root.isParentOf(viewUrl)) {
 176         return viewUrl;
 177     }
 178     return root;
 179 }
 180
 181 void DolphinView::setActive(bool active)
 182 {
 183     if (active == m_active) {
 184         return;
 185     }
 186
 187     m_active = active;
 188
 189     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 190     if (active) {
 191         emitSelectionChangedSignal();
 192     } else {
 193         color.setAlpha(150);
 194     }
 195
 196     QWidget* viewport = m_viewAccessor.itemView()->viewport();
 197     QPalette palette;
 198     palette.setColor(viewport->backgroundRole(), color);
 199     viewport->setPalette(palette);
 200
 201     update();
 202
 203     if (active) {
 204         m_viewAccessor.itemView()->setFocus();
 205         emit activated();
 206     }
 207
 208     m_controller->indicateActivationChange(active);
 209 }
 210
 211 bool DolphinView::isActive() const
 212 {
 213     return m_active;
 214 }
 215
 216 void DolphinView::setMode(Mode mode)
 217 {
 218     if (mode == m_mode) {
 219         return; // the wished mode is already set
 220     }
 221
 222     const int oldZoomLevel = m_controller->zoomLevel();
 223     m_mode = mode;
 224
 225     // remember the currently selected items, so that they will
 226     // be restored after reloading the directory
 227     m_selectedItems = selectedItems();
 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     loadDirectory(viewPropsUrl);
 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 bool DolphinView::hasSelection() const
 291 {
 292     const QAbstractItemView* view = m_viewAccessor.itemView();
 293     return view && view->selectionModel()->hasSelection();
 294 }
 295
 296 void DolphinView::markUrlsAsSelected(const QList<KUrl>& urls)
 297 {
 298     foreach (const KUrl& url, urls) {
 299         KFileItem item(KFileItem::Unknown, KFileItem::Unknown, url);
 300         m_selectedItems.append(item);
 301     }
 302 }
 303
 304 KFileItemList DolphinView::selectedItems() const
 305 {
 306     const QAbstractItemView* view = m_viewAccessor.itemView();
 307
 308     // Our view has a selection, we will map them back to the DolphinModel
 309     // and then fill the KFileItemList.
 310     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 311
 312     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
 313     KFileItemList itemList;
 314
 315     const QModelIndexList indexList = selection.indexes();
 316     foreach (const QModelIndex &index, indexList) {
 317         KFileItem item = m_viewAccessor.dirModel()->itemForIndex(index);
 318         if (!item.isNull()) {
 319             itemList.append(item);
 320         }
 321     }
 322
 323     return itemList;
 324 }
 325
 326 KUrl::List DolphinView::selectedUrls() const
 327 {
 328     KUrl::List urls;
 329     const KFileItemList list = selectedItems();
 330     foreach (const KFileItem &item, list) {
 331         urls.append(item.url());
 332     }
 333     return urls;
 334 }
 335
 336 int DolphinView::selectedItemsCount() const
 337 {
 338     return m_viewAccessor.itemView()->selectionModel()->selectedIndexes().count();
 339 }
 340
 341 QItemSelectionModel* DolphinView::selectionModel() const
 342 {
 343     return m_viewAccessor.itemView()->selectionModel();
 344 }
 345
 346 void DolphinView::setContentsPosition(int x, int y)
 347 {
 348     QAbstractItemView* view = m_viewAccessor.itemView();
 349     Q_ASSERT(view != 0);
 350     view->horizontalScrollBar()->setValue(x);
 351     view->verticalScrollBar()->setValue(y);
 352
 353     m_loadingDirectory = false;
 354 }
 355
 356 void DolphinView::setRestoredContentsPosition(const QPoint& pos)
 357 {
 358     // TODO: This function is called by DolphinViewContainer.
 359     // If it makes use of DolphinView::restoreState(...) to restore the
 360     // view state in KDE 4.5, this function can be removed.
 361     m_restoredContentsPosition = pos;
 362 }
 363
 364 QPoint DolphinView::contentsPosition() const
 365 {
 366     // TODO: If DolphinViewContainer uses DolphinView::saveState(...) to save the
 367     // view state in KDE 4.5, this code can be moved to DolphinView::saveState.
 368     QAbstractItemView* view = m_viewAccessor.itemView();
 369     Q_ASSERT(view != 0);
 370     const int x = view->horizontalScrollBar()->value();
 371     const int y = view->verticalScrollBar()->value();
 372     return QPoint(x, y);
 373 }
 374
 375 void DolphinView::setZoomLevel(int level)
 376 {
 377     if (level < ZoomLevelInfo::minimumLevel()) {
 378         level = ZoomLevelInfo::minimumLevel();
 379     } else if (level > ZoomLevelInfo::maximumLevel()) {
 380         level = ZoomLevelInfo::maximumLevel();
 381     }
 382
 383     if (level != zoomLevel()) {
 384         m_controller->setZoomLevel(level);
 385         emit zoomLevelChanged(level);
 386     }
 387 }
 388
 389 int DolphinView::zoomLevel() const
 390 {
 391     return m_controller->zoomLevel();
 392 }
 393
 394 void DolphinView::setSorting(Sorting sorting)
 395 {
 396     if (sorting != this->sorting()) {
 397         updateSorting(sorting);
 398     }
 399 }
 400
 401 DolphinView::Sorting DolphinView::sorting() const
 402 {
 403     return m_viewAccessor.proxyModel()->sorting();
 404 }
 405
 406 void DolphinView::setSortOrder(Qt::SortOrder order)
 407 {
 408     if (sortOrder() != order) {
 409         updateSortOrder(order);
 410     }
 411 }
 412
 413 Qt::SortOrder DolphinView::sortOrder() const
 414 {
 415     return m_viewAccessor.proxyModel()->sortOrder();
 416 }
 417
 418 void DolphinView::setSortFoldersFirst(bool foldersFirst)
 419 {
 420     if (sortFoldersFirst() != foldersFirst) {
 421         updateSortFoldersFirst(foldersFirst);
 422     }
 423 }
 424
 425 bool DolphinView::sortFoldersFirst() const
 426 {
 427     return m_viewAccessor.proxyModel()->sortFoldersFirst();
 428 }
 429
 430 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 431 {
 432     const KUrl viewPropsUrl = rootUrl();
 433     ViewProperties props(viewPropsUrl);
 434     props.setAdditionalInfo(info);
 435     m_viewAccessor.itemDelegate()->setShowInformation(info);
 436
 437     emit additionalInfoChanged();
 438
 439     if (m_viewAccessor.reloadOnAdditionalInfoChange()) {
 440         loadDirectory(viewPropsUrl);
 441     }
 442 }
 443
 444 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 445 {
 446     return m_viewAccessor.itemDelegate()->showInformation();
 447 }
 448
 449 void DolphinView::reload()
 450 {
 451     QByteArray viewState;
 452     QDataStream saveStream(&viewState, QIODevice::WriteOnly);
 453     saveState(saveStream);
 454     m_selectedItems= selectedItems();
 455
 456     setUrl(url());
 457     loadDirectory(url(), true);
 458
 459     QDataStream restoreStream(viewState);
 460     restoreState(restoreStream);
 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 m_controller->versionControlActions(items);
 580 }
 581
 582 void DolphinView::setUrl(const KUrl& url)
 583 {
 584     m_newFileNames.clear();
 585     updateView(url, KUrl());
 586 }
 587
 588 void DolphinView::selectAll()
 589 {
 590     m_viewAccessor.itemView()->selectAll();
 591 }
 592
 593 void DolphinView::invertSelection()
 594 {
 595     QItemSelectionModel* selectionModel = m_viewAccessor.itemView()->selectionModel();
 596     const QAbstractItemModel* itemModel = selectionModel->model();
 597
 598     const QModelIndex topLeft = itemModel->index(0, 0);
 599     const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 600                                                      itemModel->columnCount() - 1);
 601
 602     const QItemSelection selection(topLeft, bottomRight);
 603     selectionModel->select(selection, QItemSelectionModel::Toggle);
 604 }
 605
 606 void DolphinView::clearSelection()
 607 {
 608     m_viewAccessor.itemView()->clearSelection();
 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 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 839 {
 840     switch (event->type()) {
 841     case QEvent::FocusIn:
 842         if (watched == m_viewAccessor.itemView()) {
 843             m_controller->requestActivation();
 844         }
 845         break;
 846
 847     case QEvent::DragEnter:
 848         if (watched == m_viewAccessor.itemView()->viewport()) {
 849             setActive(true);
 850         }
 851         break;
 852
 853     case QEvent::KeyPress:
 854         if (watched == m_viewAccessor.itemView()) {
 855             // clear the selection when Escape has been pressed
 856             QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
 857             if (keyEvent->key() == Qt::Key_Escape) {
 858                 clearSelection();
 859             }
 860         }
 861         break;
 862
 863     case QEvent::Wheel:
 864         if (watched == m_viewAccessor.itemView()->viewport()) {
 865             // Ctrl+wheel events should cause icon zooming, but not if the left mouse button is pressed
 866             // (the user is probably trying to scroll during a selection in that case)
 867             QWheelEvent* wheelEvent = static_cast<QWheelEvent*>(event);
 868             if (wheelEvent->modifiers() & Qt::ControlModifier && !(wheelEvent->buttons() & Qt::LeftButton)) {
 869                 const int delta = wheelEvent->delta();
 870                 const int level = zoomLevel();
 871                 if (delta > 0) {
 872                     setZoomLevel(level + 1);
 873                 } else if (delta < 0) {
 874                     setZoomLevel(level - 1);
 875                 }
 876                 return true;
 877             }
 878         }
 879         break;
 880
 881     default:
 882         break;
 883     }
 884
 885     return QWidget::eventFilter(watched, event);
 886 }
 887
 888 void DolphinView::activate()
 889 {
 890     setActive(true);
 891 }
 892
 893 void DolphinView::triggerItem(const KFileItem& item)
 894 {
 895     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 896     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 897         // items are selected by the user, hence don't trigger the
 898         // item specified by 'index'
 899         return;
 900     }
 901
 902     // TODO: the m_isContextMenuOpen check is a workaround for Qt-issue 207192
 903     if (item.isNull() || m_isContextMenuOpen) {
 904         return;
 905     }
 906
 907     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 908 }
 909
 910 void DolphinView::emitDelayedSelectionChangedSignal()
 911 {
 912     // Invoke emitSelectionChangedSignal() with a delay of 300 ms. This assures
 913     // that fast selection changes don't result in expensive operations to
 914     // collect all file items for the signal (see DolphinView::selectedItems()).
 915     m_selectionChangedTimer->start();
 916 }
 917
 918 void DolphinView::emitSelectionChangedSignal()
 919 {
 920     emit selectionChanged(DolphinView::selectedItems());
 921 }
 922
 923 void DolphinView::openContextMenu(const QPoint& pos,
 924                                   const QList<QAction*>& customActions)
 925 {
 926     KFileItem item;
 927     const QModelIndex index = m_viewAccessor.itemView()->indexAt(pos);
 928     if (index.isValid() && (index.column() == DolphinModel::Name)) {
 929         const QModelIndex dolphinModelIndex = m_viewAccessor.proxyModel()->mapToSource(index);
 930         item = m_viewAccessor.dirModel()->itemForIndex(dolphinModelIndex);
 931     }
 932
 933     m_isContextMenuOpen = true; // TODO: workaround for Qt-issue 207192
 934     emit requestContextMenu(item, url(), customActions);
 935     m_isContextMenuOpen = false;
 936 }
 937
 938 void DolphinView::dropUrls(const KFileItem& destItem,
 939                            const KUrl& destPath,
 940                            QDropEvent* event)
 941 {
 942     addNewFileNames(event->mimeData());
 943     DragAndDropHelper::instance().dropUrls(destItem, destPath, event, this);
 944 }
 945
 946 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 947 {
 948     ViewProperties props(rootUrl());
 949     props.setSorting(sorting);
 950
 951     m_viewAccessor.proxyModel()->setSorting(sorting);
 952
 953     emit sortingChanged(sorting);
 954 }
 955
 956 void DolphinView::updateSortOrder(Qt::SortOrder order)
 957 {
 958     ViewProperties props(rootUrl());
 959     props.setSortOrder(order);
 960
 961     m_viewAccessor.proxyModel()->setSortOrder(order);
 962
 963     emit sortOrderChanged(order);
 964 }
 965
 966 void DolphinView::updateSortFoldersFirst(bool foldersFirst)
 967 {
 968     ViewProperties props(rootUrl());
 969     props.setSortFoldersFirst(foldersFirst);
 970
 971     m_viewAccessor.proxyModel()->setSortFoldersFirst(foldersFirst);
 972
 973     emit sortFoldersFirstChanged(foldersFirst);
 974 }
 975
 976 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 977 {
 978     ViewProperties props(rootUrl());
 979     props.setAdditionalInfo(info);
 980     props.save();
 981
 982     m_viewAccessor.itemDelegate()->setShowInformation(info);
 983
 984     emit additionalInfoChanged();
 985 }
 986
 987 void DolphinView::updateAdditionalInfoActions(KActionCollection* collection)
 988 {
 989     const bool enable = (m_mode == DolphinView::DetailsView) ||
 990                         (m_mode == DolphinView::IconsView);
 991
 992     QAction* showSizeInfo = collection->action("show_size_info");
 993     QAction* showDateInfo = collection->action("show_date_info");
 994     QAction* showPermissionsInfo = collection->action("show_permissions_info");
 995     QAction* showOwnerInfo = collection->action("show_owner_info");
 996     QAction* showGroupInfo = collection->action("show_group_info");
 997     QAction* showMimeInfo = collection->action("show_mime_info");
 998
 999     showSizeInfo->setChecked(false);
1000     showDateInfo->setChecked(false);
1001     showPermissionsInfo->setChecked(false);
1002     showOwnerInfo->setChecked(false);
1003     showGroupInfo->setChecked(false);
1004     showMimeInfo->setChecked(false);
1005
1006     showSizeInfo->setEnabled(enable);
1007     showDateInfo->setEnabled(enable);
1008     showPermissionsInfo->setEnabled(enable);
1009     showOwnerInfo->setEnabled(enable);
1010     showGroupInfo->setEnabled(enable);
1011     showMimeInfo->setEnabled(enable);
1012
1013     foreach (KFileItemDelegate::Information info, m_viewAccessor.itemDelegate()->showInformation()) {
1014         switch (info) {
1015         case KFileItemDelegate::Size:
1016             showSizeInfo->setChecked(true);
1017             break;
1018         case KFileItemDelegate::ModificationTime:
1019             showDateInfo->setChecked(true);
1020             break;
1021         case KFileItemDelegate::Permissions:
1022             showPermissionsInfo->setChecked(true);
1023             break;
1024         case KFileItemDelegate::Owner:
1025             showOwnerInfo->setChecked(true);
1026             break;
1027         case KFileItemDelegate::OwnerAndGroup:
1028             showGroupInfo->setChecked(true);
1029             break;
1030         case KFileItemDelegate::FriendlyMimeType:
1031             showMimeInfo->setChecked(true);
1032             break;
1033         default:
1034             break;
1035         }
1036     }
1037 }
1038
1039 QPair<bool, QString> DolphinView::pasteInfo() const
1040 {
1041     return KonqOperations::pasteInfo(url());
1042 }
1043
1044 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
1045 {
1046     m_tabsForFiles = tabsForFiles;
1047 }
1048
1049 bool DolphinView::isTabsForFilesEnabled() const
1050 {
1051     return m_tabsForFiles;
1052 }
1053
1054 void DolphinView::activateItem(const KUrl& url)
1055 {
1056     // TODO: If DolphinViewContainer uses DolphinView::restoreState(...) to restore the
1057     // view state in KDE 4.5, this function can be removed.
1058     m_activeItemUrl = url;
1059 }
1060
1061 bool DolphinView::itemsExpandable() const
1062 {
1063     return m_viewAccessor.itemsExpandable();
1064 }
1065
1066 void DolphinView::restoreState(QDataStream &stream)
1067 {
1068      // current item
1069     stream >> m_activeItemUrl;
1070
1071     // view position
1072     stream >> m_restoredContentsPosition;
1073
1074     // expanded folders (only relevant for the details view - will be ignored by the view in other view modes)
1075     QSet<KUrl> urlsToExpand;
1076     stream >> urlsToExpand;
1077     const DolphinDetailsViewExpander* expander = m_viewAccessor.setExpandedUrls(urlsToExpand);
1078
1079     if (expander) {
1080         m_expanderActive = true;
1081         connect (expander, SIGNAL(completed()), this, SLOT(slotLoadingCompleted()));
1082     }
1083     else {
1084         m_expanderActive = false;
1085     }
1086 }
1087
1088 void DolphinView::saveState(QDataStream &stream)
1089 {
1090     // current item
1091     KFileItem currentItem;
1092     const QAbstractItemView* view = m_viewAccessor.itemView();
1093
1094     if(view) {
1095         const QModelIndex proxyIndex = view->currentIndex();
1096         const QModelIndex dirModelIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
1097         currentItem = m_viewAccessor.dirModel()->itemForIndex(dirModelIndex);
1098     }
1099
1100     KUrl currentUrl;
1101     if (!currentItem.isNull())
1102         currentUrl = currentItem.url();
1103
1104     stream << currentUrl;
1105
1106     // view position
1107     stream << contentsPosition();
1108
1109     // expanded folders (only relevant for the details view - the set will be empty in other view modes)
1110     stream << m_viewAccessor.expandedUrls();
1111 }
1112
1113 void DolphinView::observeCreatedItem(const KUrl& url)
1114 {
1115     m_createdItemUrl = url;
1116     connect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
1117             this, SLOT(selectAndScrollToCreatedItem()));
1118 }
1119
1120 void DolphinView::selectAndScrollToCreatedItem()
1121 {
1122     const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_createdItemUrl);
1123     if (dirIndex.isValid()) {
1124         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1125         m_viewAccessor.itemView()->setCurrentIndex(proxyIndex);
1126     }
1127
1128     disconnect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
1129                this, SLOT(selectAndScrollToCreatedItem()));
1130     m_createdItemUrl = KUrl();
1131 }
1132
1133 void DolphinView::emitContentsMoved()
1134 {
1135     // TODO: If DolphinViewContainer uses DolphinView::saveState(...) to save the
1136     // view state in KDE 4.5, the contentsMoved signal might not be needed anymore,
1137     // depending on how the implementation is done.
1138     // In that case, the code in contentsPosition() can be moved to saveState().
1139
1140     // only emit the contents moved signal if no directory loading is ongoing
1141     // (this would reset the contents position always to (0, 0))
1142     if (!m_loadingDirectory) {
1143         const QPoint pos(contentsPosition());
1144         emit contentsMoved(pos.x(), pos.y());
1145     }
1146 }
1147
1148 void DolphinView::showHoverInformation(const KFileItem& item)
1149 {
1150     emit requestItemInfo(item);
1151 }
1152
1153 void DolphinView::clearHoverInformation()
1154 {
1155     emit requestItemInfo(KFileItem());
1156 }
1157
1158 void DolphinView::slotDeleteFileFinished(KJob* job)
1159 {
1160     if (job->error() == 0) {
1161         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1162     } else if (job->error() != KIO::ERR_USER_CANCELED) {
1163         emit errorMessage(job->errorString());
1164     }
1165 }
1166
1167 void DolphinView::slotRequestUrlChange(const KUrl& url)
1168 {
1169     emit requestUrlChange(url);
1170     m_controller->setUrl(url);
1171 }
1172
1173 void DolphinView::slotDirListerCompleted()
1174 {
1175     if (!m_expanderActive) {
1176         slotLoadingCompleted();
1177     }
1178
1179     if (!m_newFileNames.isEmpty()) {
1180         // select all newly added items created by a paste operation or
1181         // a drag & drop operation
1182         const int rowCount = m_viewAccessor.proxyModel()->rowCount();
1183         QItemSelection selection;
1184         for (int row = 0; row < rowCount; ++row) {
1185             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->index(row, 0);
1186             const QModelIndex dirIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
1187             const KUrl url = m_viewAccessor.dirModel()->itemForIndex(dirIndex).url();
1188             if (m_newFileNames.contains(url.fileName())) {
1189                 selection.merge(QItemSelection(proxyIndex, proxyIndex), QItemSelectionModel::Select);
1190             }
1191         }
1192         m_viewAccessor.itemView()->selectionModel()->select(selection, QItemSelectionModel::Select);
1193
1194         m_newFileNames.clear();
1195     }
1196 }
1197
1198 void DolphinView::slotLoadingCompleted()
1199 {
1200     m_expanderActive = false;
1201     m_loadingDirectory = false;
1202
1203     if (!m_activeItemUrl.isEmpty()) {
1204         // assure that the current item remains visible
1205         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_activeItemUrl);
1206         if (dirIndex.isValid()) {
1207             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1208             QAbstractItemView* view = m_viewAccessor.itemView();
1209             const bool clearSelection = !hasSelection();
1210             view->setCurrentIndex(proxyIndex);
1211             if (clearSelection) {
1212                 view->clearSelection();
1213             }
1214             m_activeItemUrl.clear();
1215         }
1216     }
1217
1218     if (!m_selectedItems.isEmpty()) {
1219         const KUrl& baseUrl = url();
1220         KUrl url;
1221         QItemSelection newSelection;
1222         foreach(const KFileItem& item, m_selectedItems) {
1223             url = item.url().upUrl();
1224             if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
1225                 QModelIndex index = m_viewAccessor.proxyModel()->mapFromSource(m_viewAccessor.dirModel()->indexForItem(item));
1226                 newSelection.select(index, index);
1227             }
1228         }
1229         m_viewAccessor.itemView()->selectionModel()->select(newSelection,
1230                                                             QItemSelectionModel::ClearAndSelect
1231                                                             | QItemSelectionModel::Current);
1232         m_selectedItems.clear();
1233     }
1234
1235     // Restore the contents position. This has to be done using a Qt::QueuedConnection
1236     // because the view might not be in its final state yet.
1237     QMetaObject::invokeMethod(this, "restoreContentsPosition", Qt::QueuedConnection);
1238 }
1239
1240 void DolphinView::slotRefreshItems()
1241 {
1242     if (m_assureVisibleCurrentIndex) {
1243         m_assureVisibleCurrentIndex = false;
1244         m_viewAccessor.itemView()->scrollTo(m_viewAccessor.itemView()->currentIndex());
1245     }
1246 }
1247
1248 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1249 {
1250     if (!url.isValid()) {
1251         const QString location(url.pathOrUrl());
1252         if (location.isEmpty()) {
1253             emit errorMessage(i18nc("@info:status", "The location is empty."));
1254         } else {
1255             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1256         }
1257         return;
1258     }
1259
1260     m_loadingDirectory = true;
1261     m_expanderActive = false;
1262
1263     m_viewAccessor.dirLister()->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
1264 }
1265
1266 void DolphinView::applyViewProperties()
1267 {
1268     if (m_ignoreViewProperties) {
1269         return;
1270     }
1271
1272     const ViewProperties props(rootUrl());
1273
1274     const Mode mode = props.viewMode();
1275     if (m_mode != mode) {
1276         const int oldZoomLevel = m_controller->zoomLevel();
1277
1278         m_mode = mode;
1279         createView();
1280         emit modeChanged();
1281
1282         updateZoomLevel(oldZoomLevel);
1283     }
1284     if (m_viewAccessor.itemView() == 0) {
1285         createView();
1286     }
1287     Q_ASSERT(m_viewAccessor.itemView() != 0);
1288     Q_ASSERT(m_viewAccessor.itemDelegate() != 0);
1289
1290     const bool showHiddenFiles = props.showHiddenFiles();
1291     if (showHiddenFiles != m_viewAccessor.dirLister()->showingDotFiles()) {
1292         m_viewAccessor.dirLister()->setShowingDotFiles(showHiddenFiles);
1293         emit showHiddenFilesChanged();
1294     }
1295
1296     m_storedCategorizedSorting = props.categorizedSorting();
1297     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1298     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
1299         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
1300         emit categorizedSortingChanged();
1301     }
1302
1303     const DolphinView::Sorting sorting = props.sorting();
1304     if (sorting != m_viewAccessor.proxyModel()->sorting()) {
1305         m_viewAccessor.proxyModel()->setSorting(sorting);
1306         emit sortingChanged(sorting);
1307     }
1308
1309     const Qt::SortOrder sortOrder = props.sortOrder();
1310     if (sortOrder != m_viewAccessor.proxyModel()->sortOrder()) {
1311         m_viewAccessor.proxyModel()->setSortOrder(sortOrder);
1312         emit sortOrderChanged(sortOrder);
1313     }
1314
1315     const bool sortFoldersFirst = props.sortFoldersFirst();
1316     if (sortFoldersFirst != m_viewAccessor.proxyModel()->sortFoldersFirst()) {
1317         m_viewAccessor.proxyModel()->setSortFoldersFirst(sortFoldersFirst);
1318         emit sortFoldersFirstChanged(sortFoldersFirst);
1319     }
1320
1321     KFileItemDelegate::InformationList info = props.additionalInfo();
1322     if (info != m_viewAccessor.itemDelegate()->showInformation()) {
1323         m_viewAccessor.itemDelegate()->setShowInformation(info);
1324         emit additionalInfoChanged();
1325     }
1326
1327     const bool showPreview = props.showPreview();
1328     if (showPreview != m_showPreview) {
1329         m_showPreview = showPreview;
1330         const int oldZoomLevel = m_controller->zoomLevel();
1331         emit showPreviewChanged();
1332
1333         // Enabling or disabling the preview might change the icon size of the view.
1334         // As the view does not emit a signal when the icon size has been changed,
1335         // the used zoom level of the controller must be adjusted manually:
1336         updateZoomLevel(oldZoomLevel);
1337     }
1338
1339     if (DolphinSettings::instance().generalSettings()->globalViewProps()) {
1340         // During the lifetime of a DolphinView instance the global view properties
1341         // should not be changed. This allows e. g. to split a view and use different
1342         // view properties for each view.
1343         m_ignoreViewProperties = true;
1344     }
1345 }
1346
1347 void DolphinView::createView()
1348 {
1349     deleteView();
1350
1351     Q_ASSERT(m_viewAccessor.itemView() == 0);
1352     m_viewAccessor.createView(this, m_controller, m_mode);
1353
1354     QAbstractItemView* view = m_viewAccessor.itemView();
1355     Q_ASSERT(view != 0);
1356     view->installEventFilter(this);
1357     view->viewport()->installEventFilter(this);
1358
1359     m_controller->setItemView(view);
1360     connect(m_controller, SIGNAL(selectionChanged()),
1361             this, SLOT(emitDelayedSelectionChangedSignal()));
1362
1363     // When changing the view mode, the selection is lost due to reinstantiating
1364     // a new item view with a custom selection model. Pass the ownership of the
1365     // selection model to DolphinView, so that it can be shared by all item views.
1366     if (m_selectionModel != 0) {
1367         view->setSelectionModel(m_selectionModel);
1368     } else {
1369         m_selectionModel = view->selectionModel();
1370     }
1371     m_selectionModel->setParent(this);
1372
1373     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
1374             this, SLOT(emitContentsMoved()));
1375     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
1376             this, SLOT(emitContentsMoved()));
1377
1378     setFocusProxy(m_viewAccessor.layoutTarget());
1379     m_topLayout->insertWidget(1, m_viewAccessor.layoutTarget());
1380 }
1381
1382 void DolphinView::deleteView()
1383 {
1384     QAbstractItemView* view = m_viewAccessor.itemView();
1385     if (view != 0) {
1386         // It's important to set the keyboard focus to the parent
1387         // before deleting the view: Otherwise when having a split
1388         // view the other view will get the focus and will request
1389         // an activation (see DolphinView::eventFilter()).
1390         setFocusProxy(0);
1391         setFocus();
1392
1393         m_topLayout->removeWidget(view);
1394         view->close();
1395
1396         // disconnect all signal/slots
1397         disconnect(view);
1398         m_controller->disconnect(view);
1399         view->disconnect();
1400         disconnect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
1401                    this, SLOT(emitContentsMoved()));
1402         disconnect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
1403                    this, SLOT(emitContentsMoved()));
1404
1405         m_viewAccessor.deleteView();
1406     }
1407 }
1408
1409 void DolphinView::pasteToUrl(const KUrl& url)
1410 {
1411     addNewFileNames(QApplication::clipboard()->mimeData());
1412     KonqOperations::doPaste(this, url);
1413 }
1414
1415 void DolphinView::updateZoomLevel(int oldZoomLevel)
1416 {
1417     const int newZoomLevel = ZoomLevelInfo::zoomLevelForIconSize(m_viewAccessor.itemView()->iconSize());
1418     if (oldZoomLevel != newZoomLevel) {
1419         m_controller->setZoomLevel(newZoomLevel);
1420         emit zoomLevelChanged(newZoomLevel);
1421     }
1422 }
1423
1424 KUrl::List DolphinView::simplifiedSelectedUrls() const
1425 {
1426     KUrl::List list = selectedUrls();
1427     if (itemsExpandable() ) {
1428         list = KDirModel::simplifiedUrlList(list);
1429     }
1430     return list;
1431 }
1432
1433 QMimeData* DolphinView::selectionMimeData() const
1434 {
1435     const QAbstractItemView* view = m_viewAccessor.itemView();
1436     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
1437     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
1438     return m_viewAccessor.dirModel()->mimeData(selection.indexes());
1439 }
1440
1441 void DolphinView::addNewFileNames(const QMimeData* mimeData)
1442 {
1443     const KUrl::List urls = KUrl::List::fromMimeData(mimeData);
1444     foreach (const KUrl& url, urls) {
1445         m_newFileNames.insert(url.fileName());
1446     }
1447 }
1448
1449 DolphinView::ViewAccessor::ViewAccessor(DolphinSortFilterProxyModel* proxyModel) :
1450     m_iconsView(0),
1451     m_detailsView(0),
1452     m_columnsContainer(0),
1453     m_proxyModel(proxyModel),
1454     m_dragSource(0)
1455 {
1456 }
1457
1458 DolphinView::ViewAccessor::~ViewAccessor()
1459 {
1460     delete m_dragSource;
1461     m_dragSource = 0;
1462 }
1463
1464 void DolphinView::ViewAccessor::createView(QWidget* parent,
1465                                            DolphinController* controller,
1466                                            Mode mode)
1467 {
1468     Q_ASSERT(itemView() == 0);
1469
1470     switch (mode) {
1471     case IconsView:
1472         m_iconsView = new DolphinIconsView(parent, controller, m_proxyModel);
1473         break;
1474
1475     case DetailsView:
1476         m_detailsView = new DolphinDetailsView(parent, controller, m_proxyModel);
1477         break;
1478
1479     case ColumnView:
1480         m_columnsContainer = new DolphinColumnViewContainer(parent, controller);
1481         break;
1482
1483     default:
1484         Q_ASSERT(false);
1485     }
1486 }
1487
1488 void DolphinView::ViewAccessor::deleteView()
1489 {
1490     QAbstractItemView* view = itemView();
1491     if (view != 0) {
1492         if (DragAndDropHelper::instance().isDragSource(view)) {
1493             // The view is a drag source (the feature "Open folders
1494             // during drag operations" is used). Deleting the view
1495             // during an ongoing drag operation is not allowed, so
1496             // this will postponed.
1497             if (m_dragSource != 0) {
1498                 // the old stored view is obviously not the drag source anymore
1499                 m_dragSource->deleteLater();
1500                 m_dragSource = 0;
1501             }
1502             view->hide();
1503             m_dragSource = view;
1504         } else {
1505             view->deleteLater();
1506         }
1507     }
1508
1509     m_iconsView = 0;
1510     m_detailsView = 0;
1511
1512     if (m_columnsContainer != 0) {
1513         m_columnsContainer->deleteLater();
1514     }
1515     m_columnsContainer = 0;
1516 }
1517
1518
1519 void DolphinView::ViewAccessor::prepareUrlChange(const KUrl& url)
1520 {
1521     if (m_columnsContainer != 0) {
1522         m_columnsContainer->showColumn(url);
1523     }
1524
1525     if(!m_detailsViewExpander.isNull()) {
1526         // Stop expanding items in the current folder
1527         m_detailsViewExpander->stop();
1528     }
1529 }
1530
1531 QAbstractItemView* DolphinView::ViewAccessor::itemView() const
1532 {
1533     if (m_iconsView != 0) {
1534         return m_iconsView;
1535     }
1536
1537     if (m_detailsView != 0) {
1538         return m_detailsView;
1539     }
1540
1541     if (m_columnsContainer != 0) {
1542         return m_columnsContainer->activeColumn();
1543     }
1544
1545     return 0;
1546 }
1547
1548 KFileItemDelegate* DolphinView::ViewAccessor::itemDelegate() const
1549 {
1550     return static_cast<KFileItemDelegate*>(itemView()->itemDelegate());
1551 }
1552
1553 QWidget* DolphinView::ViewAccessor::layoutTarget() const
1554 {
1555     if (m_columnsContainer != 0) {
1556         return m_columnsContainer;
1557     }
1558     return itemView();
1559 }
1560
1561 KUrl DolphinView::ViewAccessor::rootUrl() const
1562 {
1563     return (m_columnsContainer != 0) ? m_columnsContainer->rootUrl() : KUrl();
1564 }
1565
1566 bool DolphinView::ViewAccessor::supportsCategorizedSorting() const
1567 {
1568     return m_iconsView != 0;
1569 }
1570
1571 bool DolphinView::ViewAccessor::itemsExpandable() const
1572 {
1573     return (m_detailsView != 0) && m_detailsView->itemsExpandable();
1574 }
1575
1576
1577 QSet<KUrl> DolphinView::ViewAccessor::expandedUrls() const
1578 {
1579     if(m_detailsView != 0) {
1580         return m_detailsView->expandedUrls();
1581     }
1582     else {
1583         return QSet<KUrl>();
1584     }
1585 }
1586
1587 const DolphinDetailsViewExpander* DolphinView::ViewAccessor::setExpandedUrls(const QSet<KUrl>& urlsToExpand)
1588 {
1589     if((m_detailsView != 0) && m_detailsView->itemsExpandable() && !urlsToExpand.isEmpty()) {
1590         m_detailsViewExpander = new DolphinDetailsViewExpander(m_detailsView, urlsToExpand);
1591         return m_detailsViewExpander;
1592     }
1593     else {
1594         return 0;
1595     }
1596 }
1597
1598 bool DolphinView::ViewAccessor::reloadOnAdditionalInfoChange() const
1599 {
1600     // the details view requires no reloading of the directory, as it maps
1601     // the file item delegate info to its columns internally
1602     return m_detailsView != 0;
1603 }
1604
1605 DolphinModel* DolphinView::ViewAccessor::dirModel() const
1606 {
1607     return static_cast<DolphinModel*>(proxyModel()->sourceModel());
1608 }
1609
1610 DolphinSortFilterProxyModel* DolphinView::ViewAccessor::proxyModel() const
1611 {
1612     if (m_columnsContainer != 0) {
1613         return static_cast<DolphinSortFilterProxyModel*>(m_columnsContainer->activeColumn()->model());
1614     }
1615     return m_proxyModel;
1616 }
1617
1618 KDirLister* DolphinView::ViewAccessor::dirLister() const
1619 {
1620     return dirModel()->dirLister();
1621 }
1622
1623 void DolphinView::slotRedirection(const KUrl& oldUrl, const KUrl& newUrl)
1624 {
1625     emit redirection(oldUrl, newUrl);
1626     m_controller->redirectToUrl(newUrl); // #186947
1627 }
1628
1629 void DolphinView::restoreContentsPosition()
1630 {
1631     if (!m_restoredContentsPosition.isNull()) {
1632         setContentsPosition(m_restoredContentsPosition.x(), m_restoredContentsPosition.y());
1633         m_restoredContentsPosition = QPoint();
1634     }
1635 }
1636
1637 #include "dolphinview.moc"