src/views/dolphinview.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006-2009 by Peter Penz <peter.penz@gmx.at>             *
   3  *   Copyright (C) 2006 by Gregor Kališnik <gregor@podnapisi.net>          *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  19  ***************************************************************************/
  20
  21 #include "dolphinview.h"
  22
  23 #include <QAbstractItemView>
  24 #include <QApplication>
  25 #include <QClipboard>
  26 #include <QKeyEvent>
  27 #include <QItemSelection>
  28 #include <QBoxLayout>
  29 #include <QTimer>
  30 #include <QScrollBar>
  31
  32 #include <kactioncollection.h>
  33 #include <kcolorscheme.h>
  34 #include <kdirlister.h>
  35 #include <kiconeffect.h>
  36 #include <kfileitem.h>
  37 #include <kfileitemlistproperties.h>
  38 #include <klocale.h>
  39 #include <kio/deletejob.h>
  40 #include <kio/netaccess.h>
  41 #include <kio/previewjob.h>
  42 #include <kjob.h>
  43 #include <kmenu.h>
  44 #include <kmessagebox.h>
  45 #include <konq_fileitemcapabilities.h>
  46 #include <konq_operations.h>
  47 #include <konqmimedata.h>
  48 #include <ktoggleaction.h>
  49 #include <kurl.h>
  50
  51 #include "additionalinfoaccessor.h"
  52 #include "dolphinmodel.h"
  53 #include "dolphincolumnviewcontainer.h"
  54 #include "dolphinviewcontroller.h"
  55 #include "dolphindetailsview.h"
  56 #include "dolphinfileitemdelegate.h"
  57 #include "dolphinnewfilemenuobserver.h"
  58 #include "dolphinsortfilterproxymodel.h"
  59 #include "dolphin_detailsmodesettings.h"
  60 #include "dolphiniconsview.h"
  61 #include "dolphin_generalsettings.h"
  62 #include "draganddrophelper.h"
  63 #include "renamedialog.h"
  64 #include "settings/dolphinsettings.h"
  65 #include "viewmodecontroller.h"
  66 #include "viewproperties.h"
  67 #include "zoomlevelinfo.h"
  68 #include "dolphindetailsviewexpander.h"
  69
  70 DolphinView::DolphinView(QWidget* parent,
  71                          const KUrl& url,
  72                          DolphinSortFilterProxyModel* proxyModel) :
  73     QWidget(parent),
  74     m_active(true),
  75     m_showPreview(false),
  76     m_storedCategorizedSorting(false),
  77     m_tabsForFiles(false),
  78     m_isContextMenuOpen(false),
  79     m_assureVisibleCurrentIndex(false),
  80     m_expanderActive(false),
  81     m_isFolderWritable(true),
  82     m_mode(DolphinView::IconsView),
  83     m_topLayout(0),
  84     m_dolphinViewController(0),
  85     m_viewModeController(0),
  86     m_viewAccessor(proxyModel),
  87     m_selectionChangedTimer(0),
  88     m_activeItemUrl(),
  89     m_restoredContentsPosition(),
  90     m_createdItemUrl(),
  91     m_selectedItems(),
  92     m_newFileNames()
  93 {
  94     m_topLayout = new QVBoxLayout(this);
  95     m_topLayout->setSpacing(0);
  96     m_topLayout->setMargin(0);
  97
  98     m_dolphinViewController = new DolphinViewController(this);
  99
 100     m_viewModeController = new ViewModeController(this);
 101     m_viewModeController->setUrl(url);
 102
 103     connect(m_viewModeController, SIGNAL(urlChanged(const KUrl&)),
 104             this, SIGNAL(urlChanged(const KUrl&)));
 105
 106     connect(m_dolphinViewController, SIGNAL(requestContextMenu(const QPoint&, const QList<QAction*>&)),
 107             this, SLOT(openContextMenu(const QPoint&, const QList<QAction*>&)));
 108     connect(m_dolphinViewController, SIGNAL(urlsDropped(const KFileItem&, const KUrl&, QDropEvent*)),
 109             this, SLOT(dropUrls(const KFileItem&, const KUrl&, QDropEvent*)));
 110     connect(m_dolphinViewController, SIGNAL(sortingChanged(DolphinView::Sorting)),
 111             this, SLOT(updateSorting(DolphinView::Sorting)));
 112     connect(m_dolphinViewController, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 113             this, SLOT(updateSortOrder(Qt::SortOrder)));
 114     connect(m_dolphinViewController, SIGNAL(sortFoldersFirstChanged(bool)),
 115             this, SLOT(updateSortFoldersFirst(bool)));
 116     connect(m_dolphinViewController, SIGNAL(additionalInfoChanged(const KFileItemDelegate::InformationList&)),
 117             this, SLOT(updateAdditionalInfo(const KFileItemDelegate::InformationList&)));
 118     connect(m_dolphinViewController, SIGNAL(itemTriggered(const KFileItem&)),
 119             this, SLOT(triggerItem(const KFileItem&)));
 120     connect(m_dolphinViewController, SIGNAL(tabRequested(const KUrl&)),
 121             this, SIGNAL(tabRequested(const KUrl&)));
 122     connect(m_dolphinViewController, SIGNAL(activated()),
 123             this, SLOT(activate()));
 124     connect(m_dolphinViewController, SIGNAL(itemEntered(const KFileItem&)),
 125             this, SLOT(showHoverInformation(const KFileItem&)));
 126     connect(m_dolphinViewController, SIGNAL(viewportEntered()),
 127             this, SLOT(clearHoverInformation()));
 128     connect(m_dolphinViewController, SIGNAL(urlChangeRequested(KUrl)),
 129             this, SLOT(slotUrlChangeRequested(KUrl)));
 130
 131     // When a new item has been created by the "Create New..." menu, the item should
 132     // get selected and it must be assured that the item will get visible. As the
 133     // creation is done asynchronously, several signals must be checked:
 134     connect(&DolphinNewFileMenuObserver::instance(), SIGNAL(itemCreated(const KUrl&)),
 135             this, SLOT(observeCreatedItem(const KUrl&)));
 136
 137     m_selectionChangedTimer = new QTimer(this);
 138     m_selectionChangedTimer->setSingleShot(true);
 139     m_selectionChangedTimer->setInterval(300);
 140     connect(m_selectionChangedTimer, SIGNAL(timeout()),
 141             this, SLOT(emitSelectionChangedSignal()));
 142
 143     applyViewProperties();
 144     m_topLayout->addWidget(m_viewAccessor.layoutTarget());
 145 }
 146
 147 DolphinView::~DolphinView()
 148 {
 149 }
 150
 151 KUrl DolphinView::url() const
 152 {
 153     return m_viewModeController->url();
 154 }
 155
 156 KUrl DolphinView::rootUrl() const
 157 {
 158     const KUrl viewUrl = url();
 159     const KUrl root = m_viewAccessor.rootUrl();
 160     if (root.isEmpty() || !root.isParentOf(viewUrl)) {
 161         return viewUrl;
 162     }
 163     return root;
 164 }
 165
 166 void DolphinView::setActive(bool active)
 167 {
 168     if (active == m_active) {
 169         return;
 170     }
 171
 172     m_active = active;
 173
 174     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 175     if (!active) {
 176         color.setAlpha(150);
 177     }
 178
 179     QWidget* viewport = m_viewAccessor.itemView()->viewport();
 180     QPalette palette;
 181     palette.setColor(viewport->backgroundRole(), color);
 182     viewport->setPalette(palette);
 183
 184     update();
 185
 186     if (active) {
 187         m_viewAccessor.itemView()->setFocus();
 188         emit activated();
 189         emitSelectionChangedSignal();
 190         emit writeStateChanged(m_isFolderWritable);
 191     }
 192
 193     m_viewModeController->indicateActivationChange(active);
 194 }
 195
 196 bool DolphinView::isActive() const
 197 {
 198     return m_active;
 199 }
 200
 201 void DolphinView::setMode(Mode mode)
 202 {
 203     if (mode == m_mode) {
 204         return; // the wished mode is already set
 205     }
 206
 207     const int oldZoomLevel = m_viewModeController->zoomLevel();
 208     m_mode = mode;
 209
 210     // remember the currently selected items, so that they will
 211     // be restored after reloading the directory
 212     m_selectedItems = selectedItems();
 213
 214     deleteView();
 215
 216     const KUrl viewPropsUrl = rootUrl();
 217     ViewProperties props(viewPropsUrl);
 218     props.setViewMode(m_mode);
 219     createView();
 220
 221     // the file item delegate has been recreated, apply the current
 222     // additional information manually
 223     const KFileItemDelegate::InformationList infoList = props.additionalInfo();
 224     m_viewAccessor.itemDelegate()->setShowInformation(infoList);
 225     emit additionalInfoChanged();
 226
 227     // Not all view modes support categorized sorting. Adjust the sorting model
 228     // if changing the view mode results in a change of the categorized sorting
 229     // capabilities.
 230     m_storedCategorizedSorting = props.categorizedSorting();
 231     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 232     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
 233         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 234         emit categorizedSortingChanged();
 235     }
 236
 237     emit modeChanged();
 238
 239     updateZoomLevel(oldZoomLevel);
 240     loadDirectory(viewPropsUrl);
 241 }
 242
 243 DolphinView::Mode DolphinView::mode() const
 244 {
 245     return m_mode;
 246 }
 247
 248 bool DolphinView::showPreview() const
 249 {
 250     return m_showPreview;
 251 }
 252
 253 bool DolphinView::showHiddenFiles() const
 254 {
 255     return m_viewAccessor.dirLister()->showingDotFiles();
 256 }
 257
 258 bool DolphinView::categorizedSorting() const
 259 {
 260     // If all view modes would support categorized sorting, returning
 261     // m_viewAccessor.proxyModel()->isCategorizedModel() would be the way to go. As
 262     // currently only the icons view supports caterized sorting, we remember
 263     // the stored view properties state in m_storedCategorizedSorting and
 264     // return this state. The application takes care to disable the corresponding
 265     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 266     // that this setting is not applied to the current view mode.
 267     return m_storedCategorizedSorting;
 268 }
 269
 270 bool DolphinView::supportsCategorizedSorting() const
 271 {
 272     return m_viewAccessor.supportsCategorizedSorting();
 273 }
 274
 275 KFileItemList DolphinView::items() const
 276 {
 277     return m_viewAccessor.dirLister()->items();
 278 }
 279
 280 KFileItemList DolphinView::selectedItems() const
 281 {
 282     KFileItemList itemList;
 283     const QAbstractItemView* view = m_viewAccessor.itemView();
 284     if (view == 0) {
 285         return itemList;
 286     }
 287
 288     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
 289
 290     const QModelIndexList indexList = selection.indexes();
 291     foreach (const QModelIndex &index, indexList) {
 292         KFileItem item = m_viewAccessor.dirModel()->itemForIndex(index);
 293         if (!item.isNull()) {
 294             itemList.append(item);
 295         }
 296     }
 297
 298     return itemList;
 299 }
 300
 301 int DolphinView::selectedItemsCount() const
 302 {
 303     const QAbstractItemView* view = m_viewAccessor.itemView();
 304     if (view == 0) {
 305         return 0;
 306     }
 307
 308     return view->selectionModel()->selectedIndexes().count();
 309 }
 310
 311 void DolphinView::markUrlsAsSelected(const QList<KUrl>& urls)
 312 {
 313     foreach (const KUrl& url, urls) {
 314         KFileItem item(KFileItem::Unknown, KFileItem::Unknown, url);
 315         m_selectedItems.append(item);
 316     }
 317 }
 318
 319 void DolphinView::setItemSelectionEnabled(const QRegExp& pattern, bool enabled)
 320 {
 321     const QItemSelection matchingIndexes = childrenMatchingPattern(QModelIndex(), pattern);
 322     const QItemSelectionModel::SelectionFlags command = enabled
 323                                                       ? QItemSelectionModel::Select
 324                                                       : QItemSelectionModel::Deselect;
 325     m_viewAccessor.itemView()->selectionModel()->select(matchingIndexes, command);
 326 }
 327
 328 void DolphinView::setZoomLevel(int level)
 329 {
 330     if (level < ZoomLevelInfo::minimumLevel()) {
 331         level = ZoomLevelInfo::minimumLevel();
 332     } else if (level > ZoomLevelInfo::maximumLevel()) {
 333         level = ZoomLevelInfo::maximumLevel();
 334     }
 335
 336     if (level != zoomLevel()) {
 337         m_viewModeController->setZoomLevel(level);
 338         emit zoomLevelChanged(level);
 339     }
 340 }
 341
 342 int DolphinView::zoomLevel() const
 343 {
 344     return m_viewModeController->zoomLevel();
 345 }
 346
 347 void DolphinView::setSorting(Sorting sorting)
 348 {
 349     if (sorting != this->sorting()) {
 350         updateSorting(sorting);
 351     }
 352 }
 353
 354 DolphinView::Sorting DolphinView::sorting() const
 355 {
 356     return m_viewAccessor.proxyModel()->sorting();
 357 }
 358
 359 void DolphinView::setSortOrder(Qt::SortOrder order)
 360 {
 361     if (sortOrder() != order) {
 362         updateSortOrder(order);
 363     }
 364 }
 365
 366 Qt::SortOrder DolphinView::sortOrder() const
 367 {
 368     return m_viewAccessor.proxyModel()->sortOrder();
 369 }
 370
 371 void DolphinView::setSortFoldersFirst(bool foldersFirst)
 372 {
 373     if (sortFoldersFirst() != foldersFirst) {
 374         updateSortFoldersFirst(foldersFirst);
 375     }
 376 }
 377
 378 bool DolphinView::sortFoldersFirst() const
 379 {
 380     return m_viewAccessor.proxyModel()->sortFoldersFirst();
 381 }
 382
 383 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 384 {
 385     const KUrl viewPropsUrl = rootUrl();
 386     ViewProperties props(viewPropsUrl);
 387     props.setAdditionalInfo(info);
 388     m_viewAccessor.itemDelegate()->setShowInformation(info);
 389
 390     emit additionalInfoChanged();
 391
 392     if (m_viewAccessor.reloadOnAdditionalInfoChange()) {
 393         loadDirectory(viewPropsUrl);
 394     }
 395 }
 396
 397 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 398 {
 399     return m_viewAccessor.itemDelegate()->showInformation();
 400 }
 401
 402 void DolphinView::reload()
 403 {
 404     QByteArray viewState;
 405     QDataStream saveStream(&viewState, QIODevice::WriteOnly);
 406     saveState(saveStream);
 407     m_selectedItems= selectedItems();
 408
 409     setUrl(url());
 410     loadDirectory(url(), true);
 411
 412     QDataStream restoreStream(viewState);
 413     restoreState(restoreStream);
 414 }
 415
 416 void DolphinView::stopLoading()
 417 {
 418     m_viewAccessor.dirLister()->stop();
 419 }
 420
 421 void DolphinView::refresh()
 422 {
 423     const bool oldActivationState = m_active;
 424     const int oldZoomLevel = m_viewModeController->zoomLevel();
 425     m_active = true;
 426
 427     createView();
 428     applyViewProperties();
 429     reload();
 430
 431     setActive(oldActivationState);
 432     updateZoomLevel(oldZoomLevel);
 433 }
 434
 435 void DolphinView::setNameFilter(const QString& nameFilter)
 436 {
 437     m_viewModeController->setNameFilter(nameFilter);
 438 }
 439
 440 void DolphinView::calculateItemCount(int& fileCount,
 441                                      int& folderCount,
 442                                      KIO::filesize_t& totalFileSize) const
 443 {
 444     foreach (const KFileItem& item, m_viewAccessor.dirLister()->items()) {
 445         if (item.isDir()) {
 446             ++folderCount;
 447         } else {
 448             ++fileCount;
 449             totalFileSize += item.size();
 450         }
 451     }
 452 }
 453
 454 QString DolphinView::statusBarText() const
 455 {
 456     QString text;
 457     int folderCount = 0;
 458     int fileCount = 0;
 459     KIO::filesize_t totalFileSize = 0;
 460
 461     if (hasSelection()) {
 462         // give a summary of the status of the selected files
 463         const KFileItemList list = selectedItems();
 464         if (list.isEmpty()) {
 465             // when an item is triggered, it is temporary selected but selectedItems()
 466             // will return an empty list
 467             return text;
 468         }
 469
 470         KFileItemList::const_iterator it = list.begin();
 471         const KFileItemList::const_iterator end = list.end();
 472         while (it != end) {
 473             const KFileItem& item = *it;
 474             if (item.isDir()) {
 475                 ++folderCount;
 476             } else {
 477                 ++fileCount;
 478                 totalFileSize += item.size();
 479             }
 480             ++it;
 481         }
 482
 483         if (folderCount + fileCount == 1) {
 484             // if only one item is selected, show the filename
 485             const QString name = list.first().text();
 486             text = (folderCount == 1) ? i18nc("@info:status", "<filename>%1</filename> selected", name) :
 487                                         i18nc("@info:status", "<filename>%1</filename> selected (%2)",
 488                                               name, KIO::convertSize(totalFileSize));
 489         } else {
 490             // at least 2 items are selected
 491             const QString foldersText = i18ncp("@info:status", "1 Folder selected", "%1 Folders selected", folderCount);
 492             const QString filesText = i18ncp("@info:status", "1 File selected", "%1 Files selected", fileCount);
 493             if ((folderCount > 0) && (fileCount > 0)) {
 494                 text = i18nc("@info:status folders, files (size)", "%1, %2 (%3)",
 495                              foldersText, filesText, KIO::convertSize(totalFileSize));
 496             } else if (fileCount > 0) {
 497                 text = i18nc("@info:status files (size)", "%1 (%2)", filesText, KIO::convertSize(totalFileSize));
 498             } else {
 499                 Q_ASSERT(folderCount > 0);
 500                 text = foldersText;
 501             }
 502         }
 503     } else {
 504         calculateItemCount(fileCount, folderCount, totalFileSize);
 505         text = KIO::itemsSummaryString(fileCount + folderCount,
 506                                        fileCount, folderCount,
 507                                        totalFileSize, true);
 508     }
 509
 510     return text;
 511 }
 512
 513 QList<QAction*> DolphinView::versionControlActions(const KFileItemList& items) const
 514 {
 515     return m_dolphinViewController->versionControlActions(items);
 516 }
 517
 518 void DolphinView::setUrl(const KUrl& url)
 519 {
 520     if (m_viewModeController->url() == url) {
 521         return;
 522     }
 523
 524     const bool hadSelection = hasSelection();
 525
 526     // The selection model and directory lister might change in the case of the column view:
 527     disconnectViewAccessor();
 528
 529     m_newFileNames.clear();
 530
 531     m_viewModeController->setUrl(url); // emits urlChanged, which we forward
 532     m_viewAccessor.prepareUrlChange(url);
 533     applyViewProperties();
 534
 535     // When changing the URL there is no need to keep the version
 536     // data of the previous URL.
 537     m_viewAccessor.dirModel()->clearVersionData();
 538
 539     // Reconnect to the (probably) new selection model and directory lister
 540     connectViewAccessor();
 541     loadDirectory(url);
 542
 543     if (hadSelection || hasSelection()) {
 544         emitSelectionChangedSignal();
 545     }
 546 }
 547
 548 void DolphinView::selectAll()
 549 {
 550     m_viewAccessor.itemView()->selectAll();
 551 }
 552
 553 void DolphinView::invertSelection()
 554 {
 555     QItemSelectionModel* selectionModel = m_viewAccessor.itemView()->selectionModel();
 556     const QAbstractItemModel* itemModel = selectionModel->model();
 557
 558     const QModelIndex topLeft = itemModel->index(0, 0);
 559     const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 560                                                      itemModel->columnCount() - 1);
 561
 562     const QItemSelection selection(topLeft, bottomRight);
 563     selectionModel->select(selection, QItemSelectionModel::Toggle);
 564 }
 565
 566 void DolphinView::clearSelection()
 567 {
 568     m_viewAccessor.itemView()->clearSelection();
 569 }
 570
 571 void DolphinView::renameSelectedItems()
 572 {
 573     KFileItemList items = selectedItems();
 574     const int itemCount = items.count();
 575     if (itemCount < 1) {
 576         return;
 577     }
 578
 579     if ((itemCount == 1) && DolphinSettings::instance().generalSettings()->renameInline()) {
 580         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForItem(items.first());
 581         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
 582         m_viewAccessor.itemView()->edit(proxyIndex);
 583     } else {
 584         RenameDialog* dialog = new RenameDialog(this, items);
 585         dialog->setAttribute(Qt::WA_DeleteOnClose);
 586         dialog->show();
 587         dialog->raise();
 588         dialog->activateWindow();
 589     }
 590 }
 591
 592 void DolphinView::trashSelectedItems()
 593 {
 594     const KUrl::List list = simplifiedSelectedUrls();
 595     KonqOperations::del(this, KonqOperations::TRASH, list);
 596 }
 597
 598 void DolphinView::deleteSelectedItems()
 599 {
 600     const KUrl::List list = simplifiedSelectedUrls();
 601     const bool del = KonqOperations::askDeleteConfirmation(list,
 602                      KonqOperations::DEL,
 603                      KonqOperations::DEFAULT_CONFIRMATION,
 604                      this);
 605
 606     if (del) {
 607         KIO::Job* job = KIO::del(list);
 608         connect(job, SIGNAL(result(KJob*)),
 609                 this, SLOT(slotDeleteFileFinished(KJob*)));
 610     }
 611 }
 612
 613 void DolphinView::cutSelectedItems()
 614 {
 615     QMimeData* mimeData = selectionMimeData();
 616     KonqMimeData::addIsCutSelection(mimeData, true);
 617     QApplication::clipboard()->setMimeData(mimeData);
 618 }
 619
 620 void DolphinView::copySelectedItems()
 621 {
 622     QMimeData* mimeData = selectionMimeData();
 623     QApplication::clipboard()->setMimeData(mimeData);
 624 }
 625
 626 void DolphinView::paste()
 627 {
 628     pasteToUrl(url());
 629 }
 630
 631 void DolphinView::pasteIntoFolder()
 632 {
 633     const KFileItemList items = selectedItems();
 634     if ((items.count() == 1) && items.first().isDir()) {
 635         pasteToUrl(items.first().url());
 636     }
 637 }
 638
 639 void DolphinView::setShowPreview(bool show)
 640 {
 641     if (m_showPreview == show) {
 642         return;
 643     }
 644
 645     const KUrl viewPropsUrl = rootUrl();
 646     ViewProperties props(viewPropsUrl);
 647     props.setShowPreview(show);
 648
 649     m_showPreview = show;
 650     const int oldZoomLevel = m_viewModeController->zoomLevel();
 651     emit showPreviewChanged();
 652
 653     // Enabling or disabling the preview might change the icon size of the view.
 654     // As the view does not emit a signal when the icon size has been changed,
 655     // the used zoom level of the controller must be adjusted manually:
 656     updateZoomLevel(oldZoomLevel);
 657 }
 658
 659 void DolphinView::setShowHiddenFiles(bool show)
 660 {
 661     if (m_viewAccessor.dirLister()->showingDotFiles() == show) {
 662         return;
 663     }
 664
 665     const KUrl viewPropsUrl = rootUrl();
 666     ViewProperties props(viewPropsUrl);
 667     props.setShowHiddenFiles(show);
 668
 669     m_viewAccessor.dirLister()->setShowingDotFiles(show);
 670     emit showHiddenFilesChanged();
 671 }
 672
 673 void DolphinView::setCategorizedSorting(bool categorized)
 674 {
 675     if (categorized == categorizedSorting()) {
 676         return;
 677     }
 678
 679     // setCategorizedSorting(true) may only get invoked
 680     // if the view supports categorized sorting
 681     Q_ASSERT(!categorized || supportsCategorizedSorting());
 682
 683     ViewProperties props(rootUrl());
 684     props.setCategorizedSorting(categorized);
 685     props.save();
 686
 687     m_storedCategorizedSorting = categorized;
 688     m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
 689
 690     emit categorizedSortingChanged();
 691 }
 692
 693 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 694 {
 695     QWidget::mouseReleaseEvent(event);
 696     setActive(true);
 697 }
 698
 699 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 700 {
 701     switch (event->type()) {
 702     case QEvent::FocusIn:
 703         if (watched == m_viewAccessor.itemView()) {
 704             m_dolphinViewController->requestActivation();
 705         }
 706         break;
 707
 708     case QEvent::DragEnter:
 709         if (watched == m_viewAccessor.itemView()->viewport()) {
 710             setActive(true);
 711         }
 712         break;
 713
 714     case QEvent::KeyPress:
 715         if (watched == m_viewAccessor.itemView()) {
 716             // clear the selection when Escape has been pressed
 717             QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
 718             if (keyEvent->key() == Qt::Key_Escape) {
 719                 clearSelection();
 720             }
 721         }
 722         break;
 723
 724     case QEvent::Wheel:
 725         if (watched == m_viewAccessor.itemView()->viewport()) {
 726             // Ctrl+wheel events should cause icon zooming, but not if the left mouse button is pressed
 727             // (the user is probably trying to scroll during a selection in that case)
 728             QWheelEvent* wheelEvent = static_cast<QWheelEvent*>(event);
 729             if (wheelEvent->modifiers() & Qt::ControlModifier && !(wheelEvent->buttons() & Qt::LeftButton)) {
 730                 const int delta = wheelEvent->delta();
 731                 const int level = zoomLevel();
 732                 if (delta > 0) {
 733                     setZoomLevel(level + 1);
 734                 } else if (delta < 0) {
 735                     setZoomLevel(level - 1);
 736                 }
 737                 return true;
 738             }
 739         }
 740         break;
 741
 742     default:
 743         break;
 744     }
 745
 746     return QWidget::eventFilter(watched, event);
 747 }
 748
 749 void DolphinView::activate()
 750 {
 751     setActive(true);
 752 }
 753
 754 void DolphinView::triggerItem(const KFileItem& item)
 755 {
 756     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 757     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 758         // items are selected by the user, hence don't trigger the
 759         // item specified by 'index'
 760         return;
 761     }
 762
 763     // TODO: the m_isContextMenuOpen check is a workaround for Qt-issue 207192
 764     if (item.isNull() || m_isContextMenuOpen) {
 765         return;
 766     }
 767
 768     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 769 }
 770
 771 void DolphinView::slotSelectionChanged(const QItemSelection& selected, const QItemSelection& deselected)
 772 {
 773     const int count = selectedItemsCount();
 774     const bool selectionStateChanged = ((count >  0) && (selected.count() == count)) ||
 775                                        ((count == 0) && !deselected.isEmpty());
 776
 777     // If nothing has been selected before and something got selected (or if something
 778     // was selected before and now nothing is selected) the selectionChangedSignal must
 779     // be emitted asynchronously as fast as possible to update the edit-actions.
 780     m_selectionChangedTimer->setInterval(selectionStateChanged ? 0 : 300);
 781     m_selectionChangedTimer->start();
 782 }
 783
 784 void DolphinView::emitSelectionChangedSignal()
 785 {
 786     m_selectionChangedTimer->stop();
 787     emit selectionChanged(selectedItems());
 788 }
 789
 790 void DolphinView::openContextMenu(const QPoint& pos,
 791                                   const QList<QAction*>& customActions)
 792 {
 793     KFileItem item;
 794     const QModelIndex index = m_viewAccessor.itemView()->indexAt(pos);
 795     if (index.isValid() && (index.column() == DolphinModel::Name)) {
 796         const QModelIndex dolphinModelIndex = m_viewAccessor.proxyModel()->mapToSource(index);
 797         item = m_viewAccessor.dirModel()->itemForIndex(dolphinModelIndex);
 798     }
 799
 800     m_isContextMenuOpen = true; // TODO: workaround for Qt-issue 207192
 801     emit requestContextMenu(item, url(), customActions);
 802     m_isContextMenuOpen = false;
 803 }
 804
 805 void DolphinView::dropUrls(const KFileItem& destItem,
 806                            const KUrl& destPath,
 807                            QDropEvent* event)
 808 {
 809     addNewFileNames(event->mimeData());
 810     DragAndDropHelper::instance().dropUrls(destItem, destPath, event, this);
 811 }
 812
 813 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 814 {
 815     ViewProperties props(rootUrl());
 816     props.setSorting(sorting);
 817
 818     m_viewAccessor.proxyModel()->setSorting(sorting);
 819
 820     emit sortingChanged(sorting);
 821 }
 822
 823 void DolphinView::updateSortOrder(Qt::SortOrder order)
 824 {
 825     ViewProperties props(rootUrl());
 826     props.setSortOrder(order);
 827
 828     m_viewAccessor.proxyModel()->setSortOrder(order);
 829
 830     emit sortOrderChanged(order);
 831 }
 832
 833 void DolphinView::updateSortFoldersFirst(bool foldersFirst)
 834 {
 835     ViewProperties props(rootUrl());
 836     props.setSortFoldersFirst(foldersFirst);
 837
 838     m_viewAccessor.proxyModel()->setSortFoldersFirst(foldersFirst);
 839
 840     emit sortFoldersFirstChanged(foldersFirst);
 841 }
 842
 843 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 844 {
 845     ViewProperties props(rootUrl());
 846     props.setAdditionalInfo(info);
 847     props.save();
 848
 849     m_viewAccessor.itemDelegate()->setShowInformation(info);
 850
 851     emit additionalInfoChanged();
 852 }
 853
 854 void DolphinView::updateAdditionalInfoActions(KActionCollection* collection)
 855 {
 856     const AdditionalInfoAccessor& infoAccessor = AdditionalInfoAccessor::instance();
 857
 858     const KFileItemDelegate::InformationList checkedInfo = m_viewAccessor.itemDelegate()->showInformation();
 859     const KFileItemDelegate::InformationList infoKeys = infoAccessor.keys();
 860
 861     const bool enable = (m_mode == DolphinView::DetailsView) ||
 862                         (m_mode == DolphinView::IconsView);
 863
 864     foreach (const KFileItemDelegate::Information& info, infoKeys) {
 865         const QString name = infoAccessor.actionCollectionName(info, AdditionalInfoAccessor::AdditionalInfoType);
 866         QAction* action = collection->action(name);
 867         Q_ASSERT(action != 0);
 868         action->setEnabled(enable);
 869         action->setChecked(checkedInfo.contains(info));
 870     }
 871 }
 872
 873 QPair<bool, QString> DolphinView::pasteInfo() const
 874 {
 875     return KonqOperations::pasteInfo(url());
 876 }
 877
 878 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
 879 {
 880     m_tabsForFiles = tabsForFiles;
 881 }
 882
 883 bool DolphinView::isTabsForFilesEnabled() const
 884 {
 885     return m_tabsForFiles;
 886 }
 887
 888 bool DolphinView::itemsExpandable() const
 889 {
 890     return m_viewAccessor.itemsExpandable();
 891 }
 892
 893 void DolphinView::restoreState(QDataStream& stream)
 894 {
 895     // Restore the URL of the current item that had the keyboard focus
 896     stream >> m_activeItemUrl;
 897
 898     // Restore the root URL
 899     KUrl rootUrl;
 900     stream >> rootUrl;
 901     m_viewAccessor.setRootUrl(rootUrl);
 902
 903     // Restore the view position
 904     stream >> m_restoredContentsPosition;
 905
 906     // Restore expanded folders (only relevant for the details view - will be ignored by the view in other view modes)
 907     QSet<KUrl> urlsToExpand;
 908     stream >> urlsToExpand;
 909     const DolphinDetailsViewExpander* expander = m_viewAccessor.setExpandedUrls(urlsToExpand);
 910     if (expander != 0) {
 911         m_expanderActive = true;
 912         connect (expander, SIGNAL(completed()), this, SLOT(slotLoadingCompleted()));
 913     }
 914     else {
 915         m_expanderActive = false;
 916     }
 917 }
 918
 919 void DolphinView::saveState(QDataStream& stream)
 920 {
 921     // Save the URL of the current item that has the keyboard focus
 922     KFileItem currentItem;
 923     const QAbstractItemView* view = m_viewAccessor.itemView();
 924
 925     if (view != 0) {
 926         const QModelIndex proxyIndex = view->currentIndex();
 927         const QModelIndex dirModelIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
 928         currentItem = m_viewAccessor.dirModel()->itemForIndex(dirModelIndex);
 929     }
 930
 931     KUrl currentItemUrl;
 932     if (!currentItem.isNull()) {
 933         currentItemUrl = currentItem.url();
 934     }
 935
 936     stream << currentItemUrl;
 937
 938     // Save the root URL
 939     stream << m_viewAccessor.rootUrl();
 940
 941     // Save view position
 942     const int x = view->horizontalScrollBar()->value();
 943     const int y = view->verticalScrollBar()->value();
 944     stream << QPoint(x, y);
 945
 946     // Save expanded folders (only relevant for the details view - the set will be empty in other view modes)
 947     stream << m_viewAccessor.expandedUrls();
 948 }
 949
 950 bool DolphinView::hasSelection() const
 951 {
 952     const QAbstractItemView* view = m_viewAccessor.itemView();
 953     return (view != 0) && view->selectionModel()->hasSelection();
 954 }
 955
 956 void DolphinView::observeCreatedItem(const KUrl& url)
 957 {
 958     m_createdItemUrl = url;
 959     connect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
 960             this, SLOT(selectAndScrollToCreatedItem()));
 961 }
 962
 963 void DolphinView::selectAndScrollToCreatedItem()
 964 {
 965     const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_createdItemUrl);
 966     if (dirIndex.isValid()) {
 967         const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
 968         m_viewAccessor.itemView()->setCurrentIndex(proxyIndex);
 969     }
 970
 971     disconnect(m_viewAccessor.dirModel(), SIGNAL(rowsInserted(const QModelIndex&, int, int)),
 972                this, SLOT(selectAndScrollToCreatedItem()));
 973     m_createdItemUrl = KUrl();
 974 }
 975
 976 void DolphinView::slotRedirection(const KUrl& oldUrl, const KUrl& newUrl)
 977 {
 978     if (oldUrl.equals(url(), KUrl::CompareWithoutTrailingSlash)) {
 979         emit redirection(oldUrl, newUrl);
 980         m_viewModeController->redirectToUrl(newUrl); // #186947
 981     }
 982 }
 983
 984 void DolphinView::restoreContentsPosition()
 985 {
 986     if (!m_restoredContentsPosition.isNull()) {
 987         const int x = m_restoredContentsPosition.x();
 988         const int y = m_restoredContentsPosition.y();
 989         m_restoredContentsPosition = QPoint();
 990
 991         QAbstractItemView* view = m_viewAccessor.itemView();
 992         Q_ASSERT(view != 0);
 993         view->horizontalScrollBar()->setValue(x);
 994         view->verticalScrollBar()->setValue(y);
 995     }
 996 }
 997
 998 void DolphinView::slotUrlChangeRequested(const KUrl& url)
 999 {
1000     m_viewModeController->setUrl(url);
1001     updateWritableState();
1002 }
1003
1004 void DolphinView::showHoverInformation(const KFileItem& item)
1005 {
1006     emit requestItemInfo(item);
1007 }
1008
1009 void DolphinView::clearHoverInformation()
1010 {
1011     emit requestItemInfo(KFileItem());
1012 }
1013
1014 void DolphinView::slotDeleteFileFinished(KJob* job)
1015 {
1016     if (job->error() == 0) {
1017         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1018     } else if (job->error() != KIO::ERR_USER_CANCELED) {
1019         emit errorMessage(job->errorString());
1020     }
1021 }
1022
1023 void DolphinView::slotDirListerStarted(const KUrl& url)
1024 {
1025     // Disable the writestate temporary until it can be determined in a fast way
1026     // in DolphinView::slotDirListerCompleted()
1027     if (m_isFolderWritable) {
1028         m_isFolderWritable = false;
1029         emit writeStateChanged(m_isFolderWritable);
1030     }
1031
1032     emit startedPathLoading(url);
1033 }
1034
1035 void DolphinView::slotDirListerCompleted()
1036 {
1037     if (!m_expanderActive) {
1038         slotLoadingCompleted();
1039     }
1040
1041     if (!m_newFileNames.isEmpty()) {
1042         // select all newly added items created by a paste operation or
1043         // a drag & drop operation, and clear the previous selection
1044         m_viewAccessor.itemView()->clearSelection();
1045         const int rowCount = m_viewAccessor.proxyModel()->rowCount();
1046         QItemSelection selection;
1047         for (int row = 0; row < rowCount; ++row) {
1048             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->index(row, 0);
1049             const QModelIndex dirIndex = m_viewAccessor.proxyModel()->mapToSource(proxyIndex);
1050             const KUrl url = m_viewAccessor.dirModel()->itemForIndex(dirIndex).url();
1051             if (m_newFileNames.contains(url.fileName())) {
1052                 selection.merge(QItemSelection(proxyIndex, proxyIndex), QItemSelectionModel::Select);
1053             }
1054         }
1055         m_viewAccessor.itemView()->selectionModel()->select(selection, QItemSelectionModel::Select);
1056
1057         m_newFileNames.clear();
1058     }
1059
1060     updateWritableState();
1061 }
1062
1063 void DolphinView::slotLoadingCompleted()
1064 {
1065     m_expanderActive = false;
1066
1067     if (!m_activeItemUrl.isEmpty()) {
1068         // assure that the current item remains visible
1069         const QModelIndex dirIndex = m_viewAccessor.dirModel()->indexForUrl(m_activeItemUrl);
1070         if (dirIndex.isValid()) {
1071             const QModelIndex proxyIndex = m_viewAccessor.proxyModel()->mapFromSource(dirIndex);
1072             QAbstractItemView* view = m_viewAccessor.itemView();
1073             const bool clearSelection = !hasSelection();
1074             view->setCurrentIndex(proxyIndex);
1075             if (clearSelection) {
1076                 view->clearSelection();
1077             }
1078             m_activeItemUrl.clear();
1079         }
1080     }
1081
1082     if (!m_selectedItems.isEmpty()) {
1083         const KUrl& baseUrl = url();
1084         KUrl url;
1085         QItemSelection newSelection;
1086         foreach(const KFileItem& item, m_selectedItems) {
1087             url = item.url().upUrl();
1088             if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
1089                 QModelIndex index = m_viewAccessor.proxyModel()->mapFromSource(m_viewAccessor.dirModel()->indexForItem(item));
1090                 newSelection.select(index, index);
1091             }
1092         }
1093         m_viewAccessor.itemView()->selectionModel()->select(newSelection,
1094                                                             QItemSelectionModel::ClearAndSelect
1095                                                             | QItemSelectionModel::Current);
1096         m_selectedItems.clear();
1097     }
1098
1099     // Restore the contents position. This has to be done using a Qt::QueuedConnection
1100     // because the view might not be in its final state yet.
1101     QMetaObject::invokeMethod(this, "restoreContentsPosition", Qt::QueuedConnection);
1102
1103     emit finishedPathLoading(url());
1104 }
1105
1106 void DolphinView::slotRefreshItems()
1107 {
1108     if (m_assureVisibleCurrentIndex) {
1109         m_assureVisibleCurrentIndex = false;
1110         m_viewAccessor.itemView()->scrollTo(m_viewAccessor.itemView()->currentIndex());
1111     }
1112 }
1113
1114 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1115 {
1116     if (!url.isValid()) {
1117         const QString location(url.pathOrUrl());
1118         if (location.isEmpty()) {
1119             emit errorMessage(i18nc("@info:status", "The location is empty."));
1120         } else {
1121             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1122         }
1123         return;
1124     }
1125
1126     KDirLister* dirLister = m_viewAccessor.dirLister();
1127     dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
1128 }
1129
1130 void DolphinView::applyViewProperties()
1131 {
1132     const ViewProperties props(rootUrl());
1133
1134     const Mode mode = props.viewMode();
1135     if (m_mode != mode) {
1136         const int oldZoomLevel = m_viewModeController->zoomLevel();
1137
1138         m_mode = mode;
1139         createView();
1140         emit modeChanged();
1141
1142         updateZoomLevel(oldZoomLevel);
1143     }
1144     if (m_viewAccessor.itemView() == 0) {
1145         createView();
1146     }
1147
1148     Q_ASSERT(m_viewAccessor.itemView() != 0);
1149     Q_ASSERT(m_viewAccessor.itemDelegate() != 0);
1150
1151     const bool showHiddenFiles = props.showHiddenFiles();
1152     if (showHiddenFiles != m_viewAccessor.dirLister()->showingDotFiles()) {
1153         m_viewAccessor.dirLister()->setShowingDotFiles(showHiddenFiles);
1154         emit showHiddenFilesChanged();
1155     }
1156
1157     m_storedCategorizedSorting = props.categorizedSorting();
1158     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1159     if (categorized != m_viewAccessor.proxyModel()->isCategorizedModel()) {
1160         m_viewAccessor.proxyModel()->setCategorizedModel(categorized);
1161         emit categorizedSortingChanged();
1162     }
1163
1164     const DolphinView::Sorting sorting = props.sorting();
1165     if (sorting != m_viewAccessor.proxyModel()->sorting()) {
1166         m_viewAccessor.proxyModel()->setSorting(sorting);
1167         emit sortingChanged(sorting);
1168     }
1169
1170     const Qt::SortOrder sortOrder = props.sortOrder();
1171     if (sortOrder != m_viewAccessor.proxyModel()->sortOrder()) {
1172         m_viewAccessor.proxyModel()->setSortOrder(sortOrder);
1173         emit sortOrderChanged(sortOrder);
1174     }
1175
1176     const bool sortFoldersFirst = props.sortFoldersFirst();
1177     if (sortFoldersFirst != m_viewAccessor.proxyModel()->sortFoldersFirst()) {
1178         m_viewAccessor.proxyModel()->setSortFoldersFirst(sortFoldersFirst);
1179         emit sortFoldersFirstChanged(sortFoldersFirst);
1180     }
1181
1182     KFileItemDelegate::InformationList info = props.additionalInfo();
1183     if (info != m_viewAccessor.itemDelegate()->showInformation()) {
1184         m_viewAccessor.itemDelegate()->setShowInformation(info);
1185         emit additionalInfoChanged();
1186     }
1187
1188     const bool showPreview = props.showPreview();
1189     if (showPreview != m_showPreview) {
1190         m_showPreview = showPreview;
1191         const int oldZoomLevel = m_viewModeController->zoomLevel();
1192         emit showPreviewChanged();
1193
1194         // Enabling or disabling the preview might change the icon size of the view.
1195         // As the view does not emit a signal when the icon size has been changed,
1196         // the used zoom level of the controller must be adjusted manually:
1197         updateZoomLevel(oldZoomLevel);
1198     }
1199 }
1200
1201 void DolphinView::createView()
1202 {
1203     deleteView();
1204
1205     Q_ASSERT(m_viewAccessor.itemView() == 0);
1206     Q_ASSERT(m_dolphinViewController->itemView() == 0);
1207     m_viewAccessor.createView(this, m_dolphinViewController, m_viewModeController, m_mode);
1208
1209     QAbstractItemView* view = m_viewAccessor.itemView();
1210     Q_ASSERT(view != 0);
1211     view->installEventFilter(this);
1212     view->viewport()->installEventFilter(this);
1213
1214     m_dolphinViewController->setItemView(view);
1215
1216     const int zoomLevel = ZoomLevelInfo::zoomLevelForIconSize(view->iconSize());
1217     m_viewModeController->setZoomLevel(zoomLevel);
1218
1219     connectViewAccessor();
1220
1221     setFocusProxy(m_viewAccessor.layoutTarget());
1222     m_topLayout->insertWidget(1, m_viewAccessor.layoutTarget());
1223 }
1224
1225 void DolphinView::deleteView()
1226 {
1227     QAbstractItemView* view = m_viewAccessor.itemView();
1228     Q_ASSERT((m_dolphinViewController->itemView() == 0) || (m_dolphinViewController->itemView() == view));
1229     m_dolphinViewController->setItemView(0);
1230
1231     if (view != 0) {
1232         disconnectViewAccessor();
1233
1234         // It's important to set the keyboard focus to the parent
1235         // before deleting the view: Otherwise when having a split
1236         // view the other view will get the focus and will request
1237         // an activation (see DolphinView::eventFilter()).
1238         setFocusProxy(0);
1239         setFocus();
1240
1241         m_viewModeController->disconnect(view);
1242
1243         m_viewAccessor.deleteView();
1244     }
1245 }
1246
1247 void DolphinView::pasteToUrl(const KUrl& url)
1248 {
1249     addNewFileNames(QApplication::clipboard()->mimeData());
1250     KonqOperations::doPaste(this, url);
1251 }
1252
1253 void DolphinView::updateZoomLevel(int oldZoomLevel)
1254 {
1255     const int newZoomLevel = ZoomLevelInfo::zoomLevelForIconSize(m_viewAccessor.itemView()->iconSize());
1256     if (oldZoomLevel != newZoomLevel) {
1257         m_viewModeController->setZoomLevel(newZoomLevel);
1258         emit zoomLevelChanged(newZoomLevel);
1259     }
1260 }
1261
1262 KUrl::List DolphinView::simplifiedSelectedUrls() const
1263 {
1264     KUrl::List urls;
1265
1266     const KFileItemList items = selectedItems();
1267     foreach (const KFileItem &item, items) {
1268         urls.append(item.url());
1269     }
1270
1271
1272     if (itemsExpandable()) {
1273         urls = KDirModel::simplifiedUrlList(urls);
1274     }
1275
1276     return urls;
1277 }
1278
1279 QMimeData* DolphinView::selectionMimeData() const
1280 {
1281     const QAbstractItemView* view = m_viewAccessor.itemView();
1282     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
1283     const QItemSelection selection = m_viewAccessor.proxyModel()->mapSelectionToSource(view->selectionModel()->selection());
1284     return m_viewAccessor.dirModel()->mimeData(selection.indexes());
1285 }
1286
1287 void DolphinView::addNewFileNames(const QMimeData* mimeData)
1288 {
1289     const KUrl::List urls = KUrl::List::fromMimeData(mimeData);
1290     foreach (const KUrl& url, urls) {
1291         m_newFileNames.insert(url.fileName());
1292     }
1293 }
1294
1295 QItemSelection DolphinView::childrenMatchingPattern(const QModelIndex& parent, const QRegExp& pattern) const
1296 {
1297     QItemSelection matchingIndexes;
1298     const DolphinSortFilterProxyModel* proxyModel = m_viewAccessor.proxyModel();
1299     const DolphinModel* dolphinModel = m_viewAccessor.dirModel();
1300
1301     const int rowCount = proxyModel->rowCount(parent);
1302
1303     for (int row = 0; row < rowCount; ++row) {
1304         QModelIndex index = proxyModel->index(row, 0, parent);
1305         QModelIndex sourceIndex = proxyModel->mapToSource(index);
1306
1307         if (sourceIndex.isValid() && pattern.exactMatch(dolphinModel->data(sourceIndex).toString())) {
1308             matchingIndexes += QItemSelectionRange(index);
1309         }
1310
1311         if (proxyModel->hasChildren(index)) {
1312             matchingIndexes += childrenMatchingPattern(index, pattern);
1313         }
1314     }
1315
1316     return matchingIndexes;
1317 }
1318
1319 void DolphinView::connectViewAccessor()
1320 {
1321     KDirLister* dirLister = m_viewAccessor.dirLister();
1322     connect(dirLister, SIGNAL(redirection(KUrl,KUrl)),
1323             this, SLOT(slotRedirection(KUrl,KUrl)));
1324     connect(dirLister, SIGNAL(started(KUrl)),
1325             this, SLOT(slotDirListerStarted(KUrl)));
1326     connect(dirLister, SIGNAL(completed()),
1327             this, SLOT(slotDirListerCompleted()));
1328     connect(dirLister, SIGNAL(refreshItems(const QList<QPair<KFileItem,KFileItem>>&)),
1329             this, SLOT(slotRefreshItems()));
1330
1331     QAbstractItemView* view = m_viewAccessor.itemView();
1332     connect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
1333             this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
1334 }
1335
1336 void DolphinView::disconnectViewAccessor()
1337 {
1338     KDirLister* dirLister = m_viewAccessor.dirLister();
1339     disconnect(dirLister, SIGNAL(redirection(KUrl,KUrl)),
1340                this, SLOT(slotRedirection(KUrl,KUrl)));
1341     disconnect(dirLister, SIGNAL(started(KUrl)),
1342                this, SLOT(slotDirListerStarted(KUrl)));
1343     disconnect(dirLister, SIGNAL(completed()),
1344                this, SLOT(slotDirListerCompleted()));
1345     disconnect(dirLister, SIGNAL(refreshItems(const QList<QPair<KFileItem,KFileItem>>&)),
1346                this, SLOT(slotRefreshItems()));
1347
1348     QAbstractItemView* view = m_viewAccessor.itemView();
1349     disconnect(view->selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
1350                this, SLOT(slotSelectionChanged(QItemSelection, QItemSelection)));
1351 }
1352
1353 void DolphinView::updateWritableState()
1354 {
1355     const bool wasFolderWritable = m_isFolderWritable;
1356     m_isFolderWritable = true;
1357
1358     const KFileItem item = m_viewAccessor.dirLister()->rootItem();
1359     if (!item.isNull()) {
1360         KFileItemListProperties capabilities(KFileItemList() << item);
1361         m_isFolderWritable = capabilities.supportsWriting();
1362     }
1363     if (m_isFolderWritable != wasFolderWritable) {
1364         emit writeStateChanged(m_isFolderWritable);
1365     }
1366 }
1367
1368 DolphinView::ViewAccessor::ViewAccessor(DolphinSortFilterProxyModel* proxyModel) :
1369     m_rootUrl(),
1370     m_iconsView(0),
1371     m_detailsView(0),
1372     m_columnsContainer(0),
1373     m_proxyModel(proxyModel),
1374     m_dragSource(0)
1375 {
1376 }
1377
1378 DolphinView::ViewAccessor::~ViewAccessor()
1379 {
1380     delete m_dragSource;
1381     m_dragSource = 0;
1382 }
1383
1384 void DolphinView::ViewAccessor::createView(QWidget* parent,
1385                                            DolphinViewController* dolphinViewController,
1386                                            const ViewModeController* viewModeController,
1387                                            Mode mode)
1388 {
1389     Q_ASSERT(itemView() == 0);
1390
1391     switch (mode) {
1392     case IconsView:
1393         m_iconsView = new DolphinIconsView(parent,
1394                                            dolphinViewController,
1395                                            viewModeController,
1396                                            m_proxyModel);
1397         break;
1398
1399     case DetailsView:
1400         m_detailsView = new DolphinDetailsView(parent,
1401                                                dolphinViewController,
1402                                                viewModeController,
1403                                                m_proxyModel);
1404         break;
1405
1406     case ColumnView:
1407         m_columnsContainer = new DolphinColumnViewContainer(parent,
1408                                                             dolphinViewController,
1409                                                             viewModeController);
1410         if (!m_rootUrl.isEmpty() && m_rootUrl.isParentOf(viewModeController->url())) {
1411             // The column-view must show several columns starting with m_rootUrl as
1412             // first column and viewModeController->url() as last column.
1413             m_columnsContainer->showColumn(m_rootUrl);
1414             m_columnsContainer->showColumn(viewModeController->url());
1415         }
1416         break;
1417
1418     default:
1419         Q_ASSERT(false);
1420     }
1421 }
1422
1423 void DolphinView::ViewAccessor::deleteView()
1424 {
1425     if (m_columnsContainer != 0) {
1426         m_columnsContainer->close();
1427         m_columnsContainer->disconnect();
1428         m_columnsContainer->deleteLater();
1429         m_columnsContainer = 0;
1430     } else {
1431         QAbstractItemView* view = itemView();
1432         if (view != 0) {
1433             view->close();
1434             view->disconnect();
1435
1436             if (DragAndDropHelper::instance().isDragSource(view)) {
1437                 // The view is a drag source (the feature "Open folders
1438                 // during drag operations" is used). Deleting the view
1439                 // during an ongoing drag operation is not allowed, so
1440                 // this will postponed.
1441                 if (m_dragSource != 0) {
1442                     // the old stored view is obviously not the drag source anymore
1443                     m_dragSource->deleteLater();
1444                     m_dragSource = 0;
1445                 }
1446                 view->hide();
1447                 m_dragSource = view;
1448             } else {
1449                 view->deleteLater();
1450                 view = 0;
1451             }
1452         }
1453
1454         m_iconsView = 0;
1455         m_detailsView = 0;
1456     }
1457 }
1458
1459 void DolphinView::ViewAccessor::prepareUrlChange(const KUrl& url)
1460 {
1461     if (m_columnsContainer != 0) {
1462         m_columnsContainer->showColumn(url);
1463     }
1464 }
1465
1466 QAbstractItemView* DolphinView::ViewAccessor::itemView() const
1467 {
1468     if (m_iconsView != 0) {
1469         return m_iconsView;
1470     }
1471
1472     if (m_detailsView != 0) {
1473         return m_detailsView;
1474     }
1475
1476     if (m_columnsContainer != 0) {
1477         return m_columnsContainer->activeColumn();
1478     }
1479
1480     return 0;
1481 }
1482
1483 KFileItemDelegate* DolphinView::ViewAccessor::itemDelegate() const
1484 {
1485     return static_cast<KFileItemDelegate*>(itemView()->itemDelegate());
1486 }
1487
1488 QWidget* DolphinView::ViewAccessor::layoutTarget() const
1489 {
1490     if (m_columnsContainer != 0) {
1491         return m_columnsContainer;
1492     }
1493     return itemView();
1494 }
1495
1496 void DolphinView::ViewAccessor::setRootUrl(const KUrl& rootUrl)
1497 {
1498     m_rootUrl = rootUrl;
1499 }
1500
1501 KUrl DolphinView::ViewAccessor::rootUrl() const
1502 {
1503     return (m_columnsContainer != 0) ? m_columnsContainer->rootUrl() : m_rootUrl;
1504 }
1505
1506 bool DolphinView::ViewAccessor::supportsCategorizedSorting() const
1507 {
1508     return m_iconsView != 0;
1509 }
1510
1511 bool DolphinView::ViewAccessor::itemsExpandable() const
1512 {
1513     return (m_detailsView != 0) && m_detailsView->itemsExpandable();
1514 }
1515
1516 QSet<KUrl> DolphinView::ViewAccessor::expandedUrls() const
1517 {
1518     if (m_detailsView != 0) {
1519         return m_detailsView->expandedUrls();
1520     }
1521
1522     return QSet<KUrl>();
1523 }
1524
1525 const DolphinDetailsViewExpander* DolphinView::ViewAccessor::setExpandedUrls(const QSet<KUrl>& urlsToExpand)
1526 {
1527     if ((m_detailsView != 0) && m_detailsView->itemsExpandable() && !urlsToExpand.isEmpty()) {
1528         // Check if another expander is already active and stop it if necessary.
1529         if(!m_detailsViewExpander.isNull()) {
1530             m_detailsViewExpander->stop();
1531         }
1532
1533         m_detailsViewExpander = new DolphinDetailsViewExpander(m_detailsView, urlsToExpand);
1534         return m_detailsViewExpander;
1535     }
1536     else {
1537         return 0;
1538     }
1539 }
1540
1541 bool DolphinView::ViewAccessor::reloadOnAdditionalInfoChange() const
1542 {
1543     // the details view requires no reloading of the directory, as it maps
1544     // the file item delegate info to its columns internally
1545     return m_detailsView != 0;
1546 }
1547
1548 DolphinModel* DolphinView::ViewAccessor::dirModel() const
1549 {
1550     return static_cast<DolphinModel*>(proxyModel()->sourceModel());
1551 }
1552
1553 DolphinSortFilterProxyModel* DolphinView::ViewAccessor::proxyModel() const
1554 {
1555     if (m_columnsContainer != 0) {
1556         return static_cast<DolphinSortFilterProxyModel*>(m_columnsContainer->activeColumn()->model());
1557     }
1558     return m_proxyModel;
1559 }
1560
1561 KDirLister* DolphinView::ViewAccessor::dirLister() const
1562 {
1563     return dirModel()->dirLister();
1564 }
1565
1566 #include "dolphinview.moc"