src/views/dolphinview.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006-2009 by Peter Penz <peter.penz19@gmail.com>        *
   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 <config-nepomuk.h>
  24
  25 #include <QAbstractItemView>
  26 #include <QApplication>
  27 #include <QBoxLayout>
  28 #include <QClipboard>
  29 #include <QDropEvent>
  30 #include <QGraphicsSceneDragDropEvent>
  31 #include <QKeyEvent>
  32 #include <QItemSelection>
  33 #include <QTimer>
  34 #include <QScrollBar>
  35
  36 #include <KActionCollection>
  37 #include <KColorScheme>
  38 #include <KDirModel>
  39 #include <KIconEffect>
  40 #include <KFileItem>
  41 #include <KFileItemListProperties>
  42 #include <KLocale>
  43 #include <kitemviews/kfileitemmodel.h>
  44 #include <kitemviews/kfileitemlistview.h>
  45 #include <kitemviews/kitemlistcontainer.h>
  46 #include <kitemviews/kitemlistheader.h>
  47 #include <kitemviews/kitemlistselectionmanager.h>
  48 #include <kitemviews/kitemlistview.h>
  49 #include <kitemviews/kitemlistcontroller.h>
  50 #include <KIO/DeleteJob>
  51 #include <KIO/JobUiDelegate>
  52 #include <KIO/NetAccess>
  53 #include <KIO/PreviewJob>
  54 #include <KJob>
  55 #include <KMenu>
  56 #include <KMessageBox>
  57 #include <konq_fileitemcapabilities.h>
  58 #include <konq_operations.h>
  59 #include <konqmimedata.h>
  60 #include <KToggleAction>
  61 #include <KUrl>
  62
  63 #include "dolphinnewfilemenuobserver.h"
  64 #include "dolphin_detailsmodesettings.h"
  65 #include "dolphin_generalsettings.h"
  66 #include "dolphinitemlistview.h"
  67 #include "draganddrophelper.h"
  68 #include "renamedialog.h"
  69 #include "versioncontrol/versioncontrolobserver.h"
  70 #include "viewmodecontroller.h"
  71 #include "viewproperties.h"
  72 #include "views/tooltips/tooltipmanager.h"
  73 #include "zoomlevelinfo.h"
  74
  75 #ifdef HAVE_NEPOMUK
  76     #include <Nepomuk/ResourceManager>
  77 #endif
  78
  79 namespace {
  80     const int MaxModeEnum = DolphinView::CompactView;
  81 };
  82
  83 DolphinView::DolphinView(const KUrl& url, QWidget* parent) :
  84     QWidget(parent),
  85     m_active(true),
  86     m_tabsForFiles(false),
  87     m_assureVisibleCurrentIndex(false),
  88     m_isFolderWritable(true),
  89     m_dragging(false),
  90     m_url(url),
  91     m_viewPropertiesContext(),
  92     m_mode(DolphinView::IconsView),
  93     m_visibleRoles(),
  94     m_topLayout(0),
  95     m_model(0),
  96     m_view(0),
  97     m_container(0),
  98     m_toolTipManager(0),
  99     m_selectionChangedTimer(0),
 100     m_currentItemUrl(),
 101     m_restoredContentsPosition(),
 102     m_createdItemUrl(),
 103     m_selectedUrls(),
 104     m_versionControlObserver(0)
 105 {
 106     m_topLayout = new QVBoxLayout(this);
 107     m_topLayout->setSpacing(0);
 108     m_topLayout->setMargin(0);
 109
 110     // When a new item has been created by the "Create New..." menu, the item should
 111     // get selected and it must be assured that the item will get visible. As the
 112     // creation is done asynchronously, several signals must be checked:
 113     connect(&DolphinNewFileMenuObserver::instance(), SIGNAL(itemCreated(KUrl)),
 114             this, SLOT(observeCreatedItem(KUrl)));
 115
 116     m_selectionChangedTimer = new QTimer(this);
 117     m_selectionChangedTimer->setSingleShot(true);
 118     m_selectionChangedTimer->setInterval(300);
 119     connect(m_selectionChangedTimer, SIGNAL(timeout()),
 120             this, SLOT(emitSelectionChangedSignal()));
 121
 122     m_model = new KFileItemModel(this);
 123     m_view = new DolphinItemListView();
 124     m_view->setEnabledSelectionToggles(GeneralSettings::showSelectionToggle());
 125     m_view->setEnlargeSmallPreviews(GeneralSettings::enlargeSmallPreviews());
 126     m_view->setVisibleRoles(QList<QByteArray>() << "text");
 127     applyModeToView();
 128
 129     KItemListController* controller = new KItemListController(m_model, m_view, this);
 130     const int delay = GeneralSettings::autoExpandFolders() ? 750 : -1;
 131     controller->setAutoActivationDelay(delay);
 132
 133     m_container = new KItemListContainer(controller, this);
 134     m_container->installEventFilter(this);
 135     setFocusProxy(m_container);
 136     connect(m_container->horizontalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(hideToolTip()));
 137     connect(m_container->verticalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(hideToolTip()));
 138
 139     controller->setSelectionBehavior(KItemListController::MultiSelection);
 140     connect(controller, SIGNAL(itemActivated(int)), this, SLOT(slotItemActivated(int)));
 141     connect(controller, SIGNAL(itemsActivated(QSet<int>)), this, SLOT(slotItemsActivated(QSet<int>)));
 142     connect(controller, SIGNAL(itemMiddleClicked(int)), this, SLOT(slotItemMiddleClicked(int)));
 143     connect(controller, SIGNAL(itemContextMenuRequested(int,QPointF)), this, SLOT(slotItemContextMenuRequested(int,QPointF)));
 144     connect(controller, SIGNAL(viewContextMenuRequested(QPointF)), this, SLOT(slotViewContextMenuRequested(QPointF)));
 145     connect(controller, SIGNAL(headerContextMenuRequested(QPointF)), this, SLOT(slotHeaderContextMenuRequested(QPointF)));
 146     connect(controller, SIGNAL(mouseButtonPressed(int,Qt::MouseButtons)), this, SLOT(slotMouseButtonPressed(int,Qt::MouseButtons)));
 147     connect(controller, SIGNAL(itemHovered(int)), this, SLOT(slotItemHovered(int)));
 148     connect(controller, SIGNAL(itemUnhovered(int)), this, SLOT(slotItemUnhovered(int)));
 149     connect(controller, SIGNAL(itemDropEvent(int,QGraphicsSceneDragDropEvent*)), this, SLOT(slotItemDropEvent(int,QGraphicsSceneDragDropEvent*)));
 150     connect(controller, SIGNAL(modelChanged(KItemModelBase*,KItemModelBase*)), this, SLOT(slotModelChanged(KItemModelBase*,KItemModelBase*)));
 151
 152     connect(m_model, SIGNAL(directoryLoadingStarted()),       this, SLOT(slotDirectoryLoadingStarted()));
 153     connect(m_model, SIGNAL(directoryLoadingCompleted()),     this, SLOT(slotDirectoryLoadingCompleted()));
 154     connect(m_model, SIGNAL(directoryLoadingProgress(int)),   this, SIGNAL(directoryLoadingProgress(int)));
 155     connect(m_model, SIGNAL(directorySortingProgress(int)),   this, SIGNAL(directorySortingProgress(int)));
 156     connect(m_model, SIGNAL(itemsChanged(KItemRangeList,QSet<QByteArray>)),
 157             this, SLOT(slotItemsChanged()));
 158     connect(m_model, SIGNAL(itemsRemoved(KItemRangeList)),    this, SIGNAL(itemCountChanged()));
 159     connect(m_model, SIGNAL(itemsInserted(KItemRangeList)),   this, SIGNAL(itemCountChanged()));
 160     connect(m_model, SIGNAL(infoMessage(QString)),            this, SIGNAL(infoMessage(QString)));
 161     connect(m_model, SIGNAL(errorMessage(QString)),           this, SIGNAL(errorMessage(QString)));
 162     connect(m_model, SIGNAL(directoryRedirection(KUrl,KUrl)), this, SLOT(slotDirectoryRedirection(KUrl,KUrl)));
 163
 164     m_view->installEventFilter(this);
 165     connect(m_view, SIGNAL(sortOrderChanged(Qt::SortOrder,Qt::SortOrder)),
 166             this, SLOT(slotSortOrderChangedByHeader(Qt::SortOrder,Qt::SortOrder)));
 167     connect(m_view, SIGNAL(sortRoleChanged(QByteArray,QByteArray)),
 168             this, SLOT(slotSortRoleChangedByHeader(QByteArray,QByteArray)));
 169     connect(m_view, SIGNAL(visibleRolesChanged(QList<QByteArray>,QList<QByteArray>)),
 170             this, SLOT(slotVisibleRolesChangedByHeader(QList<QByteArray>,QList<QByteArray>)));
 171     connect(m_view, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)),
 172             this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant)));
 173     connect(m_view->header(), SIGNAL(columnWidthChanged(QByteArray,qreal,qreal)),
 174             this, SLOT(slotHeaderColumnWidthChanged(QByteArray,qreal,qreal)));
 175
 176     KItemListSelectionManager* selectionManager = controller->selectionManager();
 177     connect(selectionManager, SIGNAL(selectionChanged(QSet<int>,QSet<int>)),
 178             this, SLOT(slotSelectionChanged(QSet<int>,QSet<int>)));
 179
 180     m_toolTipManager = new ToolTipManager(this);
 181
 182     m_versionControlObserver = new VersionControlObserver(this);
 183     m_versionControlObserver->setModel(m_model);
 184     connect(m_versionControlObserver, SIGNAL(infoMessage(QString)), this, SIGNAL(infoMessage(QString)));
 185     connect(m_versionControlObserver, SIGNAL(errorMessage(QString)), this, SIGNAL(errorMessage(QString)));
 186     connect(m_versionControlObserver, SIGNAL(operationCompletedMessage(QString)), this, SIGNAL(operationCompletedMessage(QString)));
 187
 188     applyViewProperties();
 189     m_topLayout->addWidget(m_container);
 190
 191     loadDirectory(url);
 192 }
 193
 194 DolphinView::~DolphinView()
 195 {
 196 }
 197
 198 KUrl DolphinView::url() const
 199 {
 200     return m_url;
 201 }
 202
 203 void DolphinView::setActive(bool active)
 204 {
 205     if (active == m_active) {
 206         return;
 207     }
 208
 209     m_active = active;
 210
 211     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 212     if (!active) {
 213         color.setAlpha(150);
 214     }
 215
 216     QWidget* viewport = m_container->viewport();
 217     if (viewport) {
 218         QPalette palette;
 219         palette.setColor(viewport->backgroundRole(), color);
 220         viewport->setPalette(palette);
 221     }
 222
 223     update();
 224
 225     if (active) {
 226         m_container->setFocus();
 227         emit activated();
 228         emit writeStateChanged(m_isFolderWritable);
 229     }
 230 }
 231
 232 bool DolphinView::isActive() const
 233 {
 234     return m_active;
 235 }
 236
 237 void DolphinView::setMode(Mode mode)
 238 {
 239     if (mode != m_mode) {
 240         ViewProperties props(viewPropertiesUrl());
 241         props.setViewMode(mode);
 242         props.save();
 243
 244         applyViewProperties();
 245     }
 246 }
 247
 248 DolphinView::Mode DolphinView::mode() const
 249 {
 250     return m_mode;
 251 }
 252
 253 void DolphinView::setPreviewsShown(bool show)
 254 {
 255     if (previewsShown() == show) {
 256         return;
 257     }
 258
 259     ViewProperties props(viewPropertiesUrl());
 260     props.setPreviewsShown(show);
 261
 262     m_view->setPreviewsShown(show);
 263     emit previewsShownChanged(show);
 264 }
 265
 266 bool DolphinView::previewsShown() const
 267 {
 268     return m_view->previewsShown();
 269 }
 270
 271 void DolphinView::setHiddenFilesShown(bool show)
 272 {
 273     if (m_model->showHiddenFiles() == show) {
 274         return;
 275     }
 276
 277     const KFileItemList itemList = selectedItems();
 278     m_selectedUrls.clear();
 279     m_selectedUrls = itemList.urlList();
 280
 281     ViewProperties props(viewPropertiesUrl());
 282     props.setHiddenFilesShown(show);
 283
 284     m_model->setShowHiddenFiles(show);
 285     emit hiddenFilesShownChanged(show);
 286 }
 287
 288 bool DolphinView::hiddenFilesShown() const
 289 {
 290     return m_model->showHiddenFiles();
 291 }
 292
 293 void DolphinView::setGroupedSorting(bool grouped)
 294 {
 295     if (grouped == groupedSorting()) {
 296         return;
 297     }
 298
 299     ViewProperties props(viewPropertiesUrl());
 300     props.setGroupedSorting(grouped);
 301     props.save();
 302
 303     m_container->controller()->model()->setGroupedSorting(grouped);
 304
 305     emit groupedSortingChanged(grouped);
 306 }
 307
 308 bool DolphinView::groupedSorting() const
 309 {
 310     return m_model->groupedSorting();
 311 }
 312
 313 KFileItemList DolphinView::items() const
 314 {
 315     KFileItemList list;
 316     const int itemCount = m_model->count();
 317     list.reserve(itemCount);
 318
 319     for (int i = 0; i < itemCount; ++i) {
 320         list.append(m_model->fileItem(i));
 321     }
 322
 323     return list;
 324 }
 325
 326 int DolphinView::itemsCount() const
 327 {
 328     return m_model->count();
 329 }
 330
 331 KFileItemList DolphinView::selectedItems() const
 332 {
 333     const KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 334     const QSet<int> selectedIndexes = selectionManager->selectedItems();
 335
 336     KFileItemList selectedItems;
 337     QSetIterator<int> it(selectedIndexes);
 338     while (it.hasNext()) {
 339         const int index = it.next();
 340         selectedItems.append(m_model->fileItem(index));
 341     }
 342     return selectedItems;
 343 }
 344
 345 int DolphinView::selectedItemsCount() const
 346 {
 347     const KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 348     return selectionManager->selectedItems().count();
 349 }
 350
 351 void DolphinView::markUrlsAsSelected(const QList<KUrl>& urls)
 352 {
 353     m_selectedUrls = urls;
 354 }
 355
 356 void DolphinView::markUrlAsCurrent(const KUrl& url)
 357 {
 358     m_currentItemUrl = url;
 359 }
 360
 361 void DolphinView::selectItems(const QRegExp& pattern, bool enabled)
 362 {
 363     const KItemListSelectionManager::SelectionMode mode = enabled
 364                                                         ? KItemListSelectionManager::Select
 365                                                         : KItemListSelectionManager::Deselect;
 366     KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 367
 368     for (int index = 0; index < m_model->count(); index++) {
 369         const KFileItem item = m_model->fileItem(index);
 370         if (pattern.exactMatch(item.text())) {
 371             // An alternative approach would be to store the matching items in a QSet<int> and
 372             // select them in one go after the loop, but we'd need a new function
 373             // KItemListSelectionManager::setSelected(QSet<int>, SelectionMode mode)
 374             // for that.
 375             selectionManager->setSelected(index, 1, mode);
 376         }
 377     }
 378 }
 379
 380 void DolphinView::setZoomLevel(int level)
 381 {
 382     const int oldZoomLevel = zoomLevel();
 383     m_view->setZoomLevel(level);
 384     if (zoomLevel() != oldZoomLevel) {
 385         emit zoomLevelChanged(zoomLevel(), oldZoomLevel);
 386     }
 387 }
 388
 389 int DolphinView::zoomLevel() const
 390 {
 391     return m_view->zoomLevel();
 392 }
 393
 394 void DolphinView::setSortRole(const QByteArray& role)
 395 {
 396     if (role != sortRole()) {
 397         updateSortRole(role);
 398     }
 399 }
 400
 401 QByteArray DolphinView::sortRole() const
 402 {
 403     const KItemModelBase* model = m_container->controller()->model();
 404     return model->sortRole();
 405 }
 406
 407 void DolphinView::setSortOrder(Qt::SortOrder order)
 408 {
 409     if (sortOrder() != order) {
 410         updateSortOrder(order);
 411     }
 412 }
 413
 414 Qt::SortOrder DolphinView::sortOrder() const
 415 {
 416     return m_model->sortOrder();
 417 }
 418
 419 void DolphinView::setSortFoldersFirst(bool foldersFirst)
 420 {
 421     if (sortFoldersFirst() != foldersFirst) {
 422         updateSortFoldersFirst(foldersFirst);
 423     }
 424 }
 425
 426 bool DolphinView::sortFoldersFirst() const
 427 {
 428     return m_model->sortDirectoriesFirst();
 429 }
 430
 431 void DolphinView::setVisibleRoles(const QList<QByteArray>& roles)
 432 {
 433     const QList<QByteArray> previousRoles = roles;
 434
 435     ViewProperties props(viewPropertiesUrl());
 436     props.setVisibleRoles(roles);
 437
 438     m_visibleRoles = roles;
 439     m_view->setVisibleRoles(roles);
 440
 441     emit visibleRolesChanged(m_visibleRoles, previousRoles);
 442 }
 443
 444 QList<QByteArray> DolphinView::visibleRoles() const
 445 {
 446     return m_visibleRoles;
 447 }
 448
 449 void DolphinView::reload()
 450 {
 451     QByteArray viewState;
 452     QDataStream saveStream(&viewState, QIODevice::WriteOnly);
 453     saveState(saveStream);
 454
 455     const KFileItemList itemList = selectedItems();
 456     m_selectedUrls.clear();
 457     m_selectedUrls = itemList.urlList();
 458
 459     setUrl(url());
 460     loadDirectory(url(), true);
 461
 462     QDataStream restoreStream(viewState);
 463     restoreState(restoreStream);
 464 }
 465
 466 void DolphinView::stopLoading()
 467 {
 468     m_model->cancelDirectoryLoading();
 469 }
 470
 471 void DolphinView::readSettings()
 472 {
 473     const int oldZoomLevel = m_view->zoomLevel();
 474
 475     GeneralSettings::self()->readConfig();
 476     m_view->readSettings();
 477     applyViewProperties();
 478
 479     const int delay = GeneralSettings::autoExpandFolders() ? 750 : -1;
 480     m_container->controller()->setAutoActivationDelay(delay);
 481
 482     const int newZoomLevel = m_view->zoomLevel();
 483     if (newZoomLevel != oldZoomLevel) {
 484         emit zoomLevelChanged(newZoomLevel, oldZoomLevel);
 485     }
 486 }
 487
 488 void DolphinView::writeSettings()
 489 {
 490     GeneralSettings::self()->writeConfig();
 491     m_view->writeSettings();
 492 }
 493
 494 void DolphinView::setNameFilter(const QString& nameFilter)
 495 {
 496     m_model->setNameFilter(nameFilter);
 497 }
 498
 499 QString DolphinView::nameFilter() const
 500 {
 501     return m_model->nameFilter();
 502 }
 503
 504 QString DolphinView::statusBarText() const
 505 {
 506     QString summary;
 507     QString foldersText;
 508     QString filesText;
 509
 510     int folderCount = 0;
 511     int fileCount = 0;
 512     KIO::filesize_t totalFileSize = 0;
 513
 514     if (m_container->controller()->selectionManager()->hasSelection()) {
 515         // Give a summary of the status of the selected files
 516         const KFileItemList list = selectedItems();
 517         foreach (const KFileItem& item, list) {
 518             if (item.isDir()) {
 519                 ++folderCount;
 520             } else {
 521                 ++fileCount;
 522                 totalFileSize += item.size();
 523             }
 524         }
 525
 526         if (folderCount + fileCount == 1) {
 527             // If only one item is selected, show the filename
 528             filesText = i18nc("@info:status", "<filename>%1</filename> selected", list.first().text());
 529         } else {
 530             // At least 2 items are selected
 531             foldersText = i18ncp("@info:status", "1 Folder selected", "%1 Folders selected", folderCount);
 532             filesText = i18ncp("@info:status", "1 File selected", "%1 Files selected", fileCount);
 533         }
 534     } else {
 535         calculateItemCount(fileCount, folderCount, totalFileSize);
 536         foldersText = i18ncp("@info:status", "1 Folder", "%1 Folders", folderCount);
 537         filesText = i18ncp("@info:status", "1 File", "%1 Files", fileCount);
 538     }
 539
 540     if (fileCount > 0 && folderCount > 0) {
 541         summary = i18nc("@info:status folders, files (size)", "%1, %2 (%3)",
 542                         foldersText, filesText,
 543                         KGlobal::locale()->formatByteSize(totalFileSize));
 544     } else if (fileCount > 0) {
 545         summary = i18nc("@info:status files (size)", "%1 (%2)",
 546                         filesText,
 547                         KGlobal::locale()->formatByteSize(totalFileSize));
 548     } else if (folderCount > 0) {
 549         summary = foldersText;
 550     } else {
 551         summary = i18nc("@info:status", "0 Folders, 0 Files");
 552     }
 553
 554     return summary;
 555 }
 556
 557 QList<QAction*> DolphinView::versionControlActions(const KFileItemList& items) const
 558 {
 559     QList<QAction*> actions;
 560
 561     if (items.isEmpty()) {
 562         const KFileItem item = m_model->rootItem();
 563         if (!item.isNull()) {
 564             actions = m_versionControlObserver->actions(KFileItemList() << item);
 565         }
 566     } else {
 567         actions = m_versionControlObserver->actions(items);
 568     }
 569
 570     return actions;
 571 }
 572
 573 void DolphinView::setUrl(const KUrl& url)
 574 {
 575     if (url == m_url) {
 576         return;
 577     }
 578
 579     emit urlAboutToBeChanged(url);
 580     m_url = url;
 581
 582     hideToolTip();
 583
 584     // It is important to clear the items from the model before
 585     // applying the view properties, otherwise expensive operations
 586     // might be done on the existing items although they get cleared
 587     // anyhow afterwards by loadDirectory().
 588     m_model->clear();
 589     applyViewProperties();
 590     loadDirectory(url);
 591
 592     emit urlChanged(url);
 593 }
 594
 595 void DolphinView::selectAll()
 596 {
 597     KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 598     selectionManager->setSelected(0, m_model->count());
 599 }
 600
 601 void DolphinView::invertSelection()
 602 {
 603     KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 604     selectionManager->setSelected(0, m_model->count(), KItemListSelectionManager::Toggle);
 605 }
 606
 607 void DolphinView::clearSelection()
 608 {
 609     m_container->controller()->selectionManager()->clearSelection();
 610 }
 611
 612 void DolphinView::renameSelectedItems()
 613 {
 614     const KFileItemList items = selectedItems();
 615      if (items.isEmpty()) {
 616          return;
 617      }
 618
 619      if (items.count() == 1) {
 620          const int index = m_model->index(items.first());
 621          m_container->controller()->view()->editRole(index, "text");
 622      } else {
 623          RenameDialog* dialog = new RenameDialog(this, items);
 624          dialog->setAttribute(Qt::WA_DeleteOnClose);
 625          dialog->show();
 626          dialog->raise();
 627          dialog->activateWindow();
 628      }
 629
 630      // Assure that the current index remains visible when KFileItemModel
 631      // will notify the view about changed items (which might result in
 632      // a changed sorting).
 633      m_assureVisibleCurrentIndex = true;
 634 }
 635
 636 void DolphinView::trashSelectedItems()
 637 {
 638     const KUrl::List list = simplifiedSelectedUrls();
 639     KonqOperations::del(this, KonqOperations::TRASH, list);
 640 }
 641
 642 void DolphinView::deleteSelectedItems()
 643 {
 644     const KUrl::List list = simplifiedSelectedUrls();
 645     const bool del = KonqOperations::askDeleteConfirmation(list,
 646                      KonqOperations::DEL,
 647                      KonqOperations::DEFAULT_CONFIRMATION,
 648                      this);
 649
 650     if (del) {
 651         KIO::Job* job = KIO::del(list);
 652         if (job->ui()) {
 653             job->ui()->setWindow(this);
 654         }
 655         connect(job, SIGNAL(result(KJob*)),
 656                 this, SLOT(slotDeleteFileFinished(KJob*)));
 657     }
 658 }
 659
 660 void DolphinView::cutSelectedItems()
 661 {
 662     QMimeData* mimeData = selectionMimeData();
 663     KonqMimeData::addIsCutSelection(mimeData, true);
 664     QApplication::clipboard()->setMimeData(mimeData);
 665 }
 666
 667 void DolphinView::copySelectedItems()
 668 {
 669     QMimeData* mimeData = selectionMimeData();
 670     QApplication::clipboard()->setMimeData(mimeData);
 671 }
 672
 673 void DolphinView::paste()
 674 {
 675     pasteToUrl(url());
 676 }
 677
 678 void DolphinView::pasteIntoFolder()
 679 {
 680     const KFileItemList items = selectedItems();
 681     if ((items.count() == 1) && items.first().isDir()) {
 682         pasteToUrl(items.first().url());
 683     }
 684 }
 685
 686 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 687 {
 688     switch (event->type()) {
 689     case QEvent::FocusIn:
 690         if (watched == m_container) {
 691             setActive(true);
 692         }
 693         break;
 694
 695     case QEvent::GraphicsSceneDragEnter:
 696         if (watched == m_view) {
 697             m_dragging = true;
 698         }
 699         break;
 700
 701     case QEvent::GraphicsSceneDragLeave:
 702         if (watched == m_view) {
 703             m_dragging = false;
 704         }
 705         break;
 706
 707     case QEvent::GraphicsSceneDrop:
 708         if (watched == m_view) {
 709             m_dragging = false;
 710         }
 711     default:
 712         break;
 713     }
 714
 715     return QWidget::eventFilter(watched, event);
 716 }
 717
 718 void DolphinView::wheelEvent(QWheelEvent* event)
 719 {
 720     if (event->modifiers().testFlag(Qt::ControlModifier)) {
 721         const int numDegrees = event->delta() / 8;
 722         const int numSteps = numDegrees / 15;
 723
 724         setZoomLevel(zoomLevel() + numSteps);
 725         event->accept();
 726     } else {
 727         event->ignore();
 728     }
 729 }
 730
 731 void DolphinView::hideEvent(QHideEvent* event)
 732 {
 733     hideToolTip();
 734     QWidget::hideEvent(event);
 735 }
 736
 737 void DolphinView::activate()
 738 {
 739     setActive(true);
 740 }
 741
 742 void DolphinView::slotItemActivated(int index)
 743 {
 744     const KFileItem item = m_model->fileItem(index);
 745     if (!item.isNull()) {
 746         emit itemActivated(item);
 747     }
 748 }
 749
 750 void DolphinView::slotItemsActivated(const QSet<int>& indexes)
 751 {
 752     Q_ASSERT(indexes.count() >= 2);
 753
 754     KFileItemList items;
 755
 756     QSetIterator<int> it(indexes);
 757     while (it.hasNext()) {
 758         const int index = it.next();
 759         items.append(m_model->fileItem(index));
 760     }
 761
 762     foreach (const KFileItem& item, items) {
 763         if (item.isDir()) {
 764             emit tabRequested(item.url());
 765         } else {
 766             emit itemActivated(item);
 767         }
 768     }
 769 }
 770
 771 void DolphinView::slotItemMiddleClicked(int index)
 772 {
 773     const KFileItem item = m_model->fileItem(index);
 774     if (item.isDir() || isTabsForFilesEnabled()) {
 775         emit tabRequested(item.url());
 776     }
 777 }
 778
 779 void DolphinView::slotItemContextMenuRequested(int index, const QPointF& pos)
 780 {
 781     const KFileItem item = m_model->fileItem(index);
 782     emit requestContextMenu(pos.toPoint(), item, url(), QList<QAction*>());
 783 }
 784
 785 void DolphinView::slotViewContextMenuRequested(const QPointF& pos)
 786 {
 787     emit requestContextMenu(pos.toPoint(), KFileItem(), url(), QList<QAction*>());
 788 }
 789
 790 void DolphinView::slotHeaderContextMenuRequested(const QPointF& pos)
 791 {
 792     ViewProperties props(viewPropertiesUrl());
 793
 794     QPointer<KMenu> menu = new KMenu(QApplication::activeWindow());
 795
 796     KItemListView* view = m_container->controller()->view();
 797     const QSet<QByteArray> visibleRolesSet = view->visibleRoles().toSet();
 798
 799     bool nepomukRunning = false;
 800     bool indexingEnabled = false;
 801 #ifdef HAVE_NEPOMUK
 802     nepomukRunning = (Nepomuk::ResourceManager::instance()->initialized());
 803     if (nepomukRunning) {
 804         KConfig config("nepomukserverrc");
 805         indexingEnabled = config.group("Service-nepomukfileindexer").readEntry("autostart", false);
 806     }
 807 #endif
 808
 809     QString groupName;
 810     QMenu* groupMenu = 0;
 811
 812     // Add all roles to the menu that can be shown or hidden by the user
 813     const QList<KFileItemModel::RoleInfo> rolesInfo = KFileItemModel::rolesInformation();
 814     foreach (const KFileItemModel::RoleInfo& info, rolesInfo) {
 815         if (info.role == "text") {
 816             // It should not be possible to hide the "text" role
 817             continue;
 818         }
 819
 820         const QString text = m_model->roleDescription(info.role);
 821         QAction* action = 0;
 822         if (info.group.isEmpty()) {
 823             action = menu->addAction(text);
 824         } else {
 825             if (!groupMenu || info.group != groupName) {
 826                 groupName = info.group;
 827                 groupMenu = menu->addMenu(groupName);
 828             }
 829
 830             action = groupMenu->addAction(text);
 831         }
 832
 833         action->setCheckable(true);
 834         action->setChecked(visibleRolesSet.contains(info.role));
 835         action->setData(info.role);
 836
 837         const bool enable = (!info.requiresNepomuk && !info.requiresIndexer) ||
 838                             (info.requiresNepomuk && nepomukRunning) ||
 839                             (info.requiresIndexer && indexingEnabled);
 840         action->setEnabled(enable);
 841     }
 842
 843     menu->addSeparator();
 844
 845     QActionGroup* widthsGroup = new QActionGroup(menu);
 846     const bool autoColumnWidths = props.headerColumnWidths().isEmpty();
 847
 848     QAction* autoAdjustWidthsAction = menu->addAction(i18nc("@action:inmenu", "Automatic Column Widths"));
 849     autoAdjustWidthsAction->setCheckable(true);
 850     autoAdjustWidthsAction->setChecked(autoColumnWidths);
 851     autoAdjustWidthsAction->setActionGroup(widthsGroup);
 852
 853     QAction* customWidthsAction = menu->addAction(i18nc("@action:inmenu", "Custom Column Widths"));
 854     customWidthsAction->setCheckable(true);
 855     customWidthsAction->setChecked(!autoColumnWidths);
 856     customWidthsAction->setActionGroup(widthsGroup);
 857
 858     QAction* action = menu->exec(pos.toPoint());
 859     if (menu && action) {
 860         KItemListHeader* header = view->header();
 861
 862         if (action == autoAdjustWidthsAction) {
 863             // Clear the column-widths from the viewproperties and turn on
 864             // the automatic resizing of the columns
 865             props.setHeaderColumnWidths(QList<int>());
 866             header->setAutomaticColumnResizing(true);
 867         } else if (action == customWidthsAction) {
 868             // Apply the current column-widths as custom column-widths and turn
 869             // off the automatic resizing of the columns
 870             QList<int> columnWidths;
 871             foreach (const QByteArray& role, view->visibleRoles()) {
 872                 columnWidths.append(header->columnWidth(role));
 873             }
 874             props.setHeaderColumnWidths(columnWidths);
 875             header->setAutomaticColumnResizing(false);
 876         } else {
 877             // Show or hide the selected role
 878             const QByteArray selectedRole = action->data().toByteArray();
 879
 880             QList<QByteArray> visibleRoles = view->visibleRoles();
 881             if (action->isChecked()) {
 882                 visibleRoles.append(selectedRole);
 883             } else {
 884                 visibleRoles.removeOne(selectedRole);
 885             }
 886
 887             view->setVisibleRoles(visibleRoles);
 888             props.setVisibleRoles(visibleRoles);
 889
 890             QList<int> columnWidths;
 891             if (!header->automaticColumnResizing()) {
 892                 foreach (const QByteArray& role, view->visibleRoles()) {
 893                     columnWidths.append(header->columnWidth(role));
 894                 }
 895             }
 896             props.setHeaderColumnWidths(columnWidths);
 897         }
 898     }
 899
 900     delete menu;
 901 }
 902
 903 void DolphinView::slotHeaderColumnWidthChanged(const QByteArray& role, qreal current, qreal previous)
 904 {
 905     Q_UNUSED(previous);
 906
 907     const QList<QByteArray> visibleRoles = m_view->visibleRoles();
 908
 909     ViewProperties props(viewPropertiesUrl());
 910     QList<int> columnWidths = props.headerColumnWidths();
 911     if (columnWidths.count() != visibleRoles.count()) {
 912         columnWidths.clear();
 913         columnWidths.reserve(visibleRoles.count());
 914         const KItemListHeader* header = m_view->header();
 915         foreach (const QByteArray& role, visibleRoles) {
 916             const int width = header->columnWidth(role);
 917             columnWidths.append(width);
 918         }
 919     }
 920
 921     const int roleIndex = visibleRoles.indexOf(role);
 922     Q_ASSERT(roleIndex >= 0 && roleIndex < columnWidths.count());
 923     columnWidths[roleIndex] = current;
 924
 925     props.setHeaderColumnWidths(columnWidths);
 926 }
 927
 928 void DolphinView::slotItemHovered(int index)
 929 {
 930     const KFileItem item = m_model->fileItem(index);
 931
 932     if (GeneralSettings::showToolTips() && !m_dragging) {
 933         QRectF itemRect = m_container->controller()->view()->itemContextRect(index);
 934         const QPoint pos = m_container->mapToGlobal(itemRect.topLeft().toPoint());
 935         itemRect.moveTo(pos);
 936
 937         m_toolTipManager->showToolTip(item, itemRect);
 938     }
 939
 940     emit requestItemInfo(item);
 941 }
 942
 943 void DolphinView::slotItemUnhovered(int index)
 944 {
 945     Q_UNUSED(index);
 946     hideToolTip();
 947     emit requestItemInfo(KFileItem());
 948 }
 949
 950 void DolphinView::slotItemDropEvent(int index, QGraphicsSceneDragDropEvent* event)
 951 {
 952     KUrl destUrl;
 953     KFileItem destItem = m_model->fileItem(index);
 954     if (destItem.isNull() || (!destItem.isDir() && !destItem.isDesktopFile())) {
 955         // Use the URL of the view as drop target if the item is no directory
 956         // or desktop-file
 957         destItem = m_model->rootItem();
 958         destUrl = url();
 959     } else {
 960         // The item represents a directory or desktop-file
 961         destUrl = destItem.url();
 962     }
 963
 964     QDropEvent dropEvent(event->pos().toPoint(),
 965                          event->possibleActions(),
 966                          event->mimeData(),
 967                          event->buttons(),
 968                          event->modifiers());
 969
 970     const QString error = DragAndDropHelper::dropUrls(destItem, destUrl, &dropEvent);
 971     if (!error.isEmpty()) {
 972         emit errorMessage(error);
 973     }
 974
 975     if (destUrl == url()) {
 976         // Mark the dropped urls as selected.
 977         markPastedUrlsAsSelected(event->mimeData());
 978     }
 979 }
 980
 981 void DolphinView::slotModelChanged(KItemModelBase* current, KItemModelBase* previous)
 982 {
 983     if (previous != 0) {
 984         disconnect(previous, SIGNAL(directoryLoadingCompleted()), this, SLOT(slotDirectoryLoadingCompleted()));
 985         m_versionControlObserver->setModel(0);
 986     }
 987
 988     if (current) {
 989         Q_ASSERT(qobject_cast<KFileItemModel*>(current));
 990         connect(current, SIGNAL(loadingCompleted()), this, SLOT(slotDirectoryLoadingCompleted()));
 991
 992         KFileItemModel* fileItemModel = static_cast<KFileItemModel*>(current);
 993         m_versionControlObserver->setModel(fileItemModel);
 994     }
 995 }
 996
 997 void DolphinView::slotMouseButtonPressed(int itemIndex, Qt::MouseButtons buttons)
 998 {
 999     hideToolTip();
1000
1001     if (itemIndex < 0) {
1002         // Trigger the history navigation only when clicking on the viewport:
1003         // Above an item the XButtons provide a simple way to select items in
1004         // the singleClick mode.
1005         if (buttons & Qt::XButton1) {
1006             emit goBackRequested();
1007         } else if (buttons & Qt::XButton2) {
1008             emit goForwardRequested();
1009         }
1010     }
1011 }
1012
1013 void DolphinView::slotSelectionChanged(const QSet<int>& current, const QSet<int>& previous)
1014 {
1015     const int currentCount = current.count();
1016     const int previousCount = previous.count();
1017     const bool selectionStateChanged = (currentCount == 0 && previousCount  > 0) ||
1018                                        (currentCount >  0 && previousCount == 0);
1019
1020     // If nothing has been selected before and something got selected (or if something
1021     // was selected before and now nothing is selected) the selectionChangedSignal must
1022     // be emitted asynchronously as fast as possible to update the edit-actions.
1023     m_selectionChangedTimer->setInterval(selectionStateChanged ? 0 : 300);
1024     m_selectionChangedTimer->start();
1025 }
1026
1027 void DolphinView::emitSelectionChangedSignal()
1028 {
1029     m_selectionChangedTimer->stop();
1030     emit selectionChanged(selectedItems());
1031 }
1032
1033 void DolphinView::updateSortRole(const QByteArray& role)
1034 {
1035     ViewProperties props(viewPropertiesUrl());
1036     props.setSortRole(role);
1037
1038     KItemModelBase* model = m_container->controller()->model();
1039     model->setSortRole(role);
1040
1041     emit sortRoleChanged(role);
1042 }
1043
1044 void DolphinView::updateSortOrder(Qt::SortOrder order)
1045 {
1046     ViewProperties props(viewPropertiesUrl());
1047     props.setSortOrder(order);
1048
1049     m_model->setSortOrder(order);
1050
1051     emit sortOrderChanged(order);
1052 }
1053
1054 void DolphinView::updateSortFoldersFirst(bool foldersFirst)
1055 {
1056     ViewProperties props(viewPropertiesUrl());
1057     props.setSortFoldersFirst(foldersFirst);
1058
1059     m_model->setSortDirectoriesFirst(foldersFirst);
1060
1061     emit sortFoldersFirstChanged(foldersFirst);
1062 }
1063
1064 QPair<bool, QString> DolphinView::pasteInfo() const
1065 {
1066     return KonqOperations::pasteInfo(url());
1067 }
1068
1069 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
1070 {
1071     m_tabsForFiles = tabsForFiles;
1072 }
1073
1074 bool DolphinView::isTabsForFilesEnabled() const
1075 {
1076     return m_tabsForFiles;
1077 }
1078
1079 bool DolphinView::itemsExpandable() const
1080 {
1081     return m_mode == DetailsView;
1082 }
1083
1084 void DolphinView::restoreState(QDataStream& stream)
1085 {
1086     // Restore the current item that had the keyboard focus
1087     stream >> m_currentItemUrl;
1088
1089     // Restore the view position
1090     stream >> m_restoredContentsPosition;
1091
1092     // Restore expanded folders (only relevant for the details view - will be ignored by the view in other view modes)
1093     QSet<KUrl> urls;
1094     stream >> urls;
1095     m_model->restoreExpandedDirectories(urls);
1096 }
1097
1098 void DolphinView::saveState(QDataStream& stream)
1099 {
1100     // Save the current item that has the keyboard focus
1101     const int currentIndex = m_container->controller()->selectionManager()->currentItem();
1102     if (currentIndex != -1) {
1103         KFileItem item = m_model->fileItem(currentIndex);
1104         Q_ASSERT(!item.isNull()); // If the current index is valid a item must exist
1105         KUrl currentItemUrl = item.url();
1106         stream << currentItemUrl;
1107     } else {
1108         stream << KUrl();
1109     }
1110
1111     // Save view position
1112     const qreal x = m_container->horizontalScrollBar()->value();
1113     const qreal y = m_container->verticalScrollBar()->value();
1114     stream << QPoint(x, y);
1115
1116     // Save expanded folders (only relevant for the details view - the set will be empty in other view modes)
1117     stream << m_model->expandedDirectories();
1118 }
1119
1120 KFileItem DolphinView::rootItem() const
1121 {
1122     return m_model->rootItem();
1123 }
1124
1125 void DolphinView::setViewPropertiesContext(const QString& context)
1126 {
1127     m_viewPropertiesContext = context;
1128 }
1129
1130 QString DolphinView::viewPropertiesContext() const
1131 {
1132     return m_viewPropertiesContext;
1133 }
1134
1135 void DolphinView::observeCreatedItem(const KUrl& url)
1136 {
1137     m_createdItemUrl = url;
1138     connect(m_model, SIGNAL(directoryLoadingCompleted()),
1139             this, SLOT(selectAndScrollToCreatedItem()));
1140 }
1141
1142 void DolphinView::selectAndScrollToCreatedItem()
1143 {
1144     KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
1145     const int index = m_model->index(m_createdItemUrl);
1146     if (index != -1) {
1147         selectionManager->setCurrentItem(index);
1148         selectionManager->clearSelection();
1149         selectionManager->setSelected(index);
1150         m_view->scrollToItem(index);
1151     }
1152
1153     disconnect(m_model, SIGNAL(directoryLoadingCompleted()),
1154                this, SLOT(selectAndScrollToCreatedItem()));
1155     m_createdItemUrl = KUrl();
1156 }
1157
1158 void DolphinView::slotDirectoryRedirection(const KUrl& oldUrl, const KUrl& newUrl)
1159 {
1160     if (oldUrl.equals(url(), KUrl::CompareWithoutTrailingSlash)) {
1161         emit redirection(oldUrl, newUrl);
1162         m_url = newUrl; // #186947
1163     }
1164 }
1165
1166 void DolphinView::updateViewState()
1167 {
1168     if (m_currentItemUrl != KUrl()) {
1169         KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
1170         const int currentIndex = m_model->index(m_currentItemUrl);
1171         if (currentIndex != -1) {
1172             selectionManager->setCurrentItem(currentIndex);
1173         } else {
1174             selectionManager->setCurrentItem(0);
1175         }
1176         m_currentItemUrl = KUrl();
1177     }
1178
1179     if (!m_restoredContentsPosition.isNull()) {
1180         const int x = m_restoredContentsPosition.x();
1181         const int y = m_restoredContentsPosition.y();
1182         m_restoredContentsPosition = QPoint();
1183
1184         m_container->horizontalScrollBar()->setValue(x);
1185         m_container->verticalScrollBar()->setValue(y);
1186     }
1187
1188     if (!m_selectedUrls.isEmpty()) {
1189         clearSelection();
1190
1191         KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
1192         QSet<int> selectedItems = selectionManager->selectedItems();
1193
1194         foreach (const KUrl& url, m_selectedUrls) {
1195             const int index = m_model->index(url);
1196             if (index >= 0) {
1197                 selectedItems.insert(index);
1198             }
1199         }
1200
1201         selectionManager->setSelectedItems(selectedItems);
1202         m_selectedUrls.clear();
1203     }
1204 }
1205
1206 void DolphinView::hideToolTip()
1207 {
1208     if (GeneralSettings::showToolTips()) {
1209         m_toolTipManager->hideToolTip();
1210     }
1211 }
1212
1213 void DolphinView::calculateItemCount(int& fileCount,
1214                                      int& folderCount,
1215                                      KIO::filesize_t& totalFileSize) const
1216 {
1217     const int itemCount = m_model->count();
1218     for (int i = 0; i < itemCount; ++i) {
1219         const KFileItem item = m_model->fileItem(i);
1220         if (item.isDir()) {
1221             ++folderCount;
1222         } else {
1223             ++fileCount;
1224             totalFileSize += item.size();
1225         }
1226     }
1227 }
1228
1229 void DolphinView::showHoverInformation(const KFileItem& item)
1230 {
1231     emit requestItemInfo(item);
1232 }
1233
1234 void DolphinView::clearHoverInformation()
1235 {
1236     emit requestItemInfo(KFileItem());
1237 }
1238
1239 void DolphinView::slotDeleteFileFinished(KJob* job)
1240 {
1241     if (job->error() == 0) {
1242         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1243     } else if (job->error() != KIO::ERR_USER_CANCELED) {
1244         emit errorMessage(job->errorString());
1245     }
1246 }
1247
1248 void DolphinView::slotDirectoryLoadingStarted()
1249 {
1250     // Disable the writestate temporary until it can be determined in a fast way
1251     // in DolphinView::slotLoadingCompleted()
1252     if (m_isFolderWritable) {
1253         m_isFolderWritable = false;
1254         emit writeStateChanged(m_isFolderWritable);
1255     }
1256
1257     emit directoryLoadingStarted();
1258 }
1259
1260 void DolphinView::slotDirectoryLoadingCompleted()
1261 {
1262     // Update the view-state. This has to be done asynchronously
1263     // because the view might not be in its final state yet.
1264     QTimer::singleShot(0, this, SLOT(updateViewState()));
1265
1266     emit directoryLoadingCompleted();
1267
1268     updateWritableState();
1269 }
1270
1271 void DolphinView::slotItemsChanged()
1272 {
1273     m_assureVisibleCurrentIndex = false;
1274 }
1275
1276 void DolphinView::slotSortOrderChangedByHeader(Qt::SortOrder current, Qt::SortOrder previous)
1277 {
1278     Q_UNUSED(previous);
1279     Q_ASSERT(m_model->sortOrder() == current);
1280
1281     ViewProperties props(viewPropertiesUrl());
1282     props.setSortOrder(current);
1283
1284     emit sortOrderChanged(current);
1285 }
1286
1287 void DolphinView::slotSortRoleChangedByHeader(const QByteArray& current, const QByteArray& previous)
1288 {
1289     Q_UNUSED(previous);
1290     Q_ASSERT(m_model->sortRole() == current);
1291
1292     ViewProperties props(viewPropertiesUrl());
1293     props.setSortRole(current);
1294
1295     emit sortRoleChanged(current);
1296 }
1297
1298 void DolphinView::slotVisibleRolesChangedByHeader(const QList<QByteArray>& current,
1299                                                   const QList<QByteArray>& previous)
1300 {
1301     Q_UNUSED(previous);
1302     Q_ASSERT(m_container->controller()->view()->visibleRoles() == current);
1303
1304     const QList<QByteArray> previousVisibleRoles = m_visibleRoles;
1305
1306     m_visibleRoles = current;
1307
1308     ViewProperties props(viewPropertiesUrl());
1309     props.setVisibleRoles(m_visibleRoles);
1310
1311     emit visibleRolesChanged(m_visibleRoles, previousVisibleRoles);
1312 }
1313
1314 void DolphinView::slotRoleEditingFinished(int index, const QByteArray& role, const QVariant& value)
1315 {
1316     if (role == "text") {
1317         const KFileItem item = m_model->fileItem(index);
1318         const QString newName = value.toString();
1319         if (!newName.isEmpty() && newName != item.text() && newName != QLatin1String(".") && newName != QLatin1String("..")) {
1320             KonqOperations::rename(this, item.url(), newName);
1321         }
1322     }
1323 }
1324
1325 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1326 {
1327     if (!url.isValid()) {
1328         const QString location(url.pathOrUrl());
1329         if (location.isEmpty()) {
1330             emit errorMessage(i18nc("@info:status", "The location is empty."));
1331         } else {
1332             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1333         }
1334         return;
1335     }
1336
1337     if (reload) {
1338         m_model->refreshDirectory(url);
1339     } else {
1340         m_model->loadDirectory(url);
1341     }
1342 }
1343
1344 void DolphinView::applyViewProperties()
1345 {
1346     m_view->beginTransaction();
1347
1348     const ViewProperties props(viewPropertiesUrl());
1349
1350     const Mode mode = props.viewMode();
1351     if (m_mode != mode) {
1352         const Mode previousMode = m_mode;
1353         m_mode = mode;
1354
1355         // Changing the mode might result in changing
1356         // the zoom level. Remember the old zoom level so
1357         // that zoomLevelChanged() can get emitted.
1358         const int oldZoomLevel = m_view->zoomLevel();
1359         applyModeToView();
1360
1361         emit modeChanged(m_mode, previousMode);
1362
1363         if (m_view->zoomLevel() != oldZoomLevel) {
1364             emit zoomLevelChanged(m_view->zoomLevel(), oldZoomLevel);
1365         }
1366     }
1367
1368     const bool hiddenFilesShown = props.hiddenFilesShown();
1369     if (hiddenFilesShown != m_model->showHiddenFiles()) {
1370         m_model->setShowHiddenFiles(hiddenFilesShown);
1371         emit hiddenFilesShownChanged(hiddenFilesShown);
1372     }
1373
1374     const bool groupedSorting = props.groupedSorting();
1375     if (groupedSorting != m_model->groupedSorting()) {
1376         m_model->setGroupedSorting(groupedSorting);
1377         emit groupedSortingChanged(groupedSorting);
1378     }
1379
1380     const QByteArray sortRole = props.sortRole();
1381     if (sortRole != m_model->sortRole()) {
1382         m_model->setSortRole(sortRole);
1383         emit sortRoleChanged(sortRole);
1384     }
1385
1386     const Qt::SortOrder sortOrder = props.sortOrder();
1387     if (sortOrder != m_model->sortOrder()) {
1388         m_model->setSortOrder(sortOrder);
1389         emit sortOrderChanged(sortOrder);
1390     }
1391
1392     const bool sortFoldersFirst = props.sortFoldersFirst();
1393     if (sortFoldersFirst != m_model->sortDirectoriesFirst()) {
1394         m_model->setSortDirectoriesFirst(sortFoldersFirst);
1395         emit sortFoldersFirstChanged(sortFoldersFirst);
1396     }
1397
1398     const QList<QByteArray> visibleRoles = props.visibleRoles();
1399     if (visibleRoles != m_visibleRoles) {
1400         const QList<QByteArray> previousVisibleRoles = m_visibleRoles;
1401         m_visibleRoles = visibleRoles;
1402         m_view->setVisibleRoles(visibleRoles);
1403         emit visibleRolesChanged(m_visibleRoles, previousVisibleRoles);
1404     }
1405
1406     const bool previewsShown = props.previewsShown();
1407     if (previewsShown != m_view->previewsShown()) {
1408         const int oldZoomLevel = zoomLevel();
1409
1410         m_view->setPreviewsShown(previewsShown);
1411         emit previewsShownChanged(previewsShown);
1412
1413         // Changing the preview-state might result in a changed zoom-level
1414         if (oldZoomLevel != zoomLevel()) {
1415             emit zoomLevelChanged(zoomLevel(), oldZoomLevel);
1416         }
1417     }
1418
1419     KItemListView* itemListView = m_container->controller()->view();
1420     if (itemListView->isHeaderVisible()) {
1421         KItemListHeader* header = itemListView->header();
1422         const QList<int> headerColumnWidths = props.headerColumnWidths();
1423         const int rolesCount = m_visibleRoles.count();
1424         if (headerColumnWidths.count() == rolesCount) {
1425             header->setAutomaticColumnResizing(false);
1426
1427             QHash<QByteArray, qreal> columnWidths;
1428             for (int i = 0; i < rolesCount; ++i) {
1429                 columnWidths.insert(m_visibleRoles[i], headerColumnWidths[i]);
1430             }
1431             header->setColumnWidths(columnWidths);
1432         } else {
1433             header->setAutomaticColumnResizing(true);
1434         }
1435     }
1436
1437     m_view->endTransaction();
1438 }
1439
1440 void DolphinView::applyModeToView()
1441 {
1442     switch (m_mode) {
1443     case IconsView:   m_view->setItemLayout(KFileItemListView::IconsLayout); break;
1444     case CompactView: m_view->setItemLayout(KFileItemListView::CompactLayout); break;
1445     case DetailsView: m_view->setItemLayout(KFileItemListView::DetailsLayout); break;
1446     default: Q_ASSERT(false); break;
1447     }
1448 }
1449
1450 void DolphinView::pasteToUrl(const KUrl& url)
1451 {
1452     markPastedUrlsAsSelected(QApplication::clipboard()->mimeData());
1453     KonqOperations::doPaste(this, url);
1454 }
1455
1456 KUrl::List DolphinView::simplifiedSelectedUrls() const
1457 {
1458     KUrl::List urls;
1459
1460     const KFileItemList items = selectedItems();
1461     foreach (const KFileItem &item, items) {
1462         urls.append(item.url());
1463     }
1464
1465     if (itemsExpandable()) {
1466         // TODO: Check if we still need KDirModel for this in KDE 5.0
1467         urls = KDirModel::simplifiedUrlList(urls);
1468     }
1469
1470     return urls;
1471 }
1472
1473 QMimeData* DolphinView::selectionMimeData() const
1474 {
1475     const KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
1476     const QSet<int> selectedIndexes = selectionManager->selectedItems();
1477
1478     return m_model->createMimeData(selectedIndexes);
1479 }
1480
1481 void DolphinView::markPastedUrlsAsSelected(const QMimeData* mimeData)
1482 {
1483     const KUrl::List sourceUrls = KUrl::List::fromMimeData(mimeData);
1484     KUrl::List destUrls;
1485     foreach (const KUrl& source, sourceUrls) {
1486         KUrl destination(url().url() + "/" + source.fileName());
1487         destUrls << destination;
1488     }
1489     markUrlsAsSelected(destUrls);
1490 }
1491
1492 void DolphinView::updateWritableState()
1493 {
1494     const bool wasFolderWritable = m_isFolderWritable;
1495     m_isFolderWritable = true;
1496
1497     const KFileItem item = m_model->rootItem();
1498     if (!item.isNull()) {
1499         KFileItemListProperties capabilities(KFileItemList() << item);
1500         m_isFolderWritable = capabilities.supportsWriting();
1501     }
1502     if (m_isFolderWritable != wasFolderWritable) {
1503         emit writeStateChanged(m_isFolderWritable);
1504     }
1505 }
1506
1507 KUrl DolphinView::viewPropertiesUrl() const
1508 {
1509     if (m_viewPropertiesContext.isEmpty()) {
1510         return m_url;
1511     }
1512
1513     KUrl url;
1514     url.setProtocol(m_url.protocol());
1515     url.setPath(m_viewPropertiesContext);
1516     return url;
1517 }
1518
1519 #include "dolphinview.moc"