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_scrollToCurrentItem(false),
 102     m_restoredContentsPosition(),
 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->setVisibleRoles(QList<QByteArray>() << "text");
 126     applyModeToView();
 127
 128     KItemListController* controller = new KItemListController(m_model, m_view, this);
 129     const int delay = GeneralSettings::autoExpandFolders() ? 750 : -1;
 130     controller->setAutoActivationDelay(delay);
 131
 132     // The EnlargeSmallPreviews setting can only be changed after the model
 133     // has been set in the view by KItemListController.
 134     m_view->setEnlargeSmallPreviews(GeneralSettings::enlargeSmallPreviews());
 135
 136     m_container = new KItemListContainer(controller, this);
 137     m_container->installEventFilter(this);
 138     setFocusProxy(m_container);
 139     connect(m_container->horizontalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(hideToolTip()));
 140     connect(m_container->verticalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(hideToolTip()));
 141
 142     controller->setSelectionBehavior(KItemListController::MultiSelection);
 143     connect(controller, SIGNAL(itemActivated(int)), this, SLOT(slotItemActivated(int)));
 144     connect(controller, SIGNAL(itemsActivated(QSet<int>)), this, SLOT(slotItemsActivated(QSet<int>)));
 145     connect(controller, SIGNAL(itemMiddleClicked(int)), this, SLOT(slotItemMiddleClicked(int)));
 146     connect(controller, SIGNAL(itemContextMenuRequested(int,QPointF)), this, SLOT(slotItemContextMenuRequested(int,QPointF)));
 147     connect(controller, SIGNAL(viewContextMenuRequested(QPointF)), this, SLOT(slotViewContextMenuRequested(QPointF)));
 148     connect(controller, SIGNAL(headerContextMenuRequested(QPointF)), this, SLOT(slotHeaderContextMenuRequested(QPointF)));
 149     connect(controller, SIGNAL(mouseButtonPressed(int,Qt::MouseButtons)), this, SLOT(slotMouseButtonPressed(int,Qt::MouseButtons)));
 150     connect(controller, SIGNAL(itemHovered(int)), this, SLOT(slotItemHovered(int)));
 151     connect(controller, SIGNAL(itemUnhovered(int)), this, SLOT(slotItemUnhovered(int)));
 152     connect(controller, SIGNAL(itemDropEvent(int,QGraphicsSceneDragDropEvent*)), this, SLOT(slotItemDropEvent(int,QGraphicsSceneDragDropEvent*)));
 153     connect(controller, SIGNAL(modelChanged(KItemModelBase*,KItemModelBase*)), this, SLOT(slotModelChanged(KItemModelBase*,KItemModelBase*)));
 154
 155     connect(m_model, SIGNAL(directoryLoadingStarted()),       this, SLOT(slotDirectoryLoadingStarted()));
 156     connect(m_model, SIGNAL(directoryLoadingCompleted()),     this, SLOT(slotDirectoryLoadingCompleted()));
 157     connect(m_model, SIGNAL(directoryLoadingProgress(int)),   this, SIGNAL(directoryLoadingProgress(int)));
 158     connect(m_model, SIGNAL(directorySortingProgress(int)),   this, SIGNAL(directorySortingProgress(int)));
 159     connect(m_model, SIGNAL(itemsChanged(KItemRangeList,QSet<QByteArray>)),
 160             this, SLOT(slotItemsChanged()));
 161     connect(m_model, SIGNAL(itemsRemoved(KItemRangeList)),    this, SIGNAL(itemCountChanged()));
 162     connect(m_model, SIGNAL(itemsInserted(KItemRangeList)),   this, SIGNAL(itemCountChanged()));
 163     connect(m_model, SIGNAL(infoMessage(QString)),            this, SIGNAL(infoMessage(QString)));
 164     connect(m_model, SIGNAL(errorMessage(QString)),           this, SIGNAL(errorMessage(QString)));
 165     connect(m_model, SIGNAL(directoryRedirection(KUrl,KUrl)), this, SLOT(slotDirectoryRedirection(KUrl,KUrl)));
 166     connect(m_model, SIGNAL(urlIsFileError(KUrl)),            this, SIGNAL(urlIsFileError(KUrl)));
 167
 168     m_view->installEventFilter(this);
 169     connect(m_view, SIGNAL(sortOrderChanged(Qt::SortOrder,Qt::SortOrder)),
 170             this, SLOT(slotSortOrderChangedByHeader(Qt::SortOrder,Qt::SortOrder)));
 171     connect(m_view, SIGNAL(sortRoleChanged(QByteArray,QByteArray)),
 172             this, SLOT(slotSortRoleChangedByHeader(QByteArray,QByteArray)));
 173     connect(m_view, SIGNAL(visibleRolesChanged(QList<QByteArray>,QList<QByteArray>)),
 174             this, SLOT(slotVisibleRolesChangedByHeader(QList<QByteArray>,QList<QByteArray>)));
 175     connect(m_view, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)),
 176             this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant)));
 177     connect(m_view->header(), SIGNAL(columnWidthChanged(QByteArray,qreal,qreal)),
 178             this, SLOT(slotHeaderColumnWidthChanged(QByteArray,qreal,qreal)));
 179
 180     KItemListSelectionManager* selectionManager = controller->selectionManager();
 181     connect(selectionManager, SIGNAL(selectionChanged(QSet<int>,QSet<int>)),
 182             this, SLOT(slotSelectionChanged(QSet<int>,QSet<int>)));
 183
 184     m_toolTipManager = new ToolTipManager(this);
 185
 186     m_versionControlObserver = new VersionControlObserver(this);
 187     m_versionControlObserver->setModel(m_model);
 188     connect(m_versionControlObserver, SIGNAL(infoMessage(QString)), this, SIGNAL(infoMessage(QString)));
 189     connect(m_versionControlObserver, SIGNAL(errorMessage(QString)), this, SIGNAL(errorMessage(QString)));
 190     connect(m_versionControlObserver, SIGNAL(operationCompletedMessage(QString)), this, SIGNAL(operationCompletedMessage(QString)));
 191
 192     applyViewProperties();
 193     m_topLayout->addWidget(m_container);
 194
 195     loadDirectory(url);
 196 }
 197
 198 DolphinView::~DolphinView()
 199 {
 200 }
 201
 202 KUrl DolphinView::url() const
 203 {
 204     return m_url;
 205 }
 206
 207 void DolphinView::setActive(bool active)
 208 {
 209     if (active == m_active) {
 210         return;
 211     }
 212
 213     m_active = active;
 214
 215     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 216     if (!active) {
 217         color.setAlpha(150);
 218     }
 219
 220     QWidget* viewport = m_container->viewport();
 221     if (viewport) {
 222         QPalette palette;
 223         palette.setColor(viewport->backgroundRole(), color);
 224         viewport->setPalette(palette);
 225     }
 226
 227     update();
 228
 229     if (active) {
 230         m_container->setFocus();
 231         emit activated();
 232         emit writeStateChanged(m_isFolderWritable);
 233     }
 234 }
 235
 236 bool DolphinView::isActive() const
 237 {
 238     return m_active;
 239 }
 240
 241 void DolphinView::setMode(Mode mode)
 242 {
 243     if (mode != m_mode) {
 244         ViewProperties props(viewPropertiesUrl());
 245         props.setViewMode(mode);
 246         props.save();
 247
 248         applyViewProperties();
 249     }
 250 }
 251
 252 DolphinView::Mode DolphinView::mode() const
 253 {
 254     return m_mode;
 255 }
 256
 257 void DolphinView::setPreviewsShown(bool show)
 258 {
 259     if (previewsShown() == show) {
 260         return;
 261     }
 262
 263     ViewProperties props(viewPropertiesUrl());
 264     props.setPreviewsShown(show);
 265
 266     const int oldZoomLevel = m_view->zoomLevel();
 267     m_view->setPreviewsShown(show);
 268     emit previewsShownChanged(show);
 269
 270     const int newZoomLevel = m_view->zoomLevel();
 271     if (newZoomLevel != oldZoomLevel) {
 272         emit zoomLevelChanged(newZoomLevel, oldZoomLevel);
 273     }
 274 }
 275
 276 bool DolphinView::previewsShown() const
 277 {
 278     return m_view->previewsShown();
 279 }
 280
 281 void DolphinView::setHiddenFilesShown(bool show)
 282 {
 283     if (m_model->showHiddenFiles() == show) {
 284         return;
 285     }
 286
 287     const KFileItemList itemList = selectedItems();
 288     m_selectedUrls.clear();
 289     m_selectedUrls = itemList.urlList();
 290
 291     ViewProperties props(viewPropertiesUrl());
 292     props.setHiddenFilesShown(show);
 293
 294     m_model->setShowHiddenFiles(show);
 295     emit hiddenFilesShownChanged(show);
 296 }
 297
 298 bool DolphinView::hiddenFilesShown() const
 299 {
 300     return m_model->showHiddenFiles();
 301 }
 302
 303 void DolphinView::setGroupedSorting(bool grouped)
 304 {
 305     if (grouped == groupedSorting()) {
 306         return;
 307     }
 308
 309     ViewProperties props(viewPropertiesUrl());
 310     props.setGroupedSorting(grouped);
 311     props.save();
 312
 313     m_container->controller()->model()->setGroupedSorting(grouped);
 314
 315     emit groupedSortingChanged(grouped);
 316 }
 317
 318 bool DolphinView::groupedSorting() const
 319 {
 320     return m_model->groupedSorting();
 321 }
 322
 323 KFileItemList DolphinView::items() const
 324 {
 325     KFileItemList list;
 326     const int itemCount = m_model->count();
 327     list.reserve(itemCount);
 328
 329     for (int i = 0; i < itemCount; ++i) {
 330         list.append(m_model->fileItem(i));
 331     }
 332
 333     return list;
 334 }
 335
 336 int DolphinView::itemsCount() const
 337 {
 338     return m_model->count();
 339 }
 340
 341 KFileItemList DolphinView::selectedItems() const
 342 {
 343     const KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 344     const QSet<int> selectedIndexes = selectionManager->selectedItems();
 345
 346     KFileItemList selectedItems;
 347     QSetIterator<int> it(selectedIndexes);
 348     while (it.hasNext()) {
 349         const int index = it.next();
 350         selectedItems.append(m_model->fileItem(index));
 351     }
 352     return selectedItems;
 353 }
 354
 355 int DolphinView::selectedItemsCount() const
 356 {
 357     const KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 358     return selectionManager->selectedItems().count();
 359 }
 360
 361 void DolphinView::markUrlsAsSelected(const QList<KUrl>& urls)
 362 {
 363     m_selectedUrls = urls;
 364 }
 365
 366 void DolphinView::markUrlAsCurrent(const KUrl& url)
 367 {
 368     m_currentItemUrl = url;
 369     m_scrollToCurrentItem = true;
 370 }
 371
 372 void DolphinView::selectItems(const QRegExp& pattern, bool enabled)
 373 {
 374     const KItemListSelectionManager::SelectionMode mode = enabled
 375                                                         ? KItemListSelectionManager::Select
 376                                                         : KItemListSelectionManager::Deselect;
 377     KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 378
 379     for (int index = 0; index < m_model->count(); index++) {
 380         const KFileItem item = m_model->fileItem(index);
 381         if (pattern.exactMatch(item.text())) {
 382             // An alternative approach would be to store the matching items in a QSet<int> and
 383             // select them in one go after the loop, but we'd need a new function
 384             // KItemListSelectionManager::setSelected(QSet<int>, SelectionMode mode)
 385             // for that.
 386             selectionManager->setSelected(index, 1, mode);
 387         }
 388     }
 389 }
 390
 391 void DolphinView::setZoomLevel(int level)
 392 {
 393     const int oldZoomLevel = zoomLevel();
 394     m_view->setZoomLevel(level);
 395     if (zoomLevel() != oldZoomLevel) {
 396         hideToolTip();
 397         emit zoomLevelChanged(zoomLevel(), oldZoomLevel);
 398     }
 399 }
 400
 401 int DolphinView::zoomLevel() const
 402 {
 403     return m_view->zoomLevel();
 404 }
 405
 406 void DolphinView::setSortRole(const QByteArray& role)
 407 {
 408     if (role != sortRole()) {
 409         updateSortRole(role);
 410     }
 411 }
 412
 413 QByteArray DolphinView::sortRole() const
 414 {
 415     const KItemModelBase* model = m_container->controller()->model();
 416     return model->sortRole();
 417 }
 418
 419 void DolphinView::setSortOrder(Qt::SortOrder order)
 420 {
 421     if (sortOrder() != order) {
 422         updateSortOrder(order);
 423     }
 424 }
 425
 426 Qt::SortOrder DolphinView::sortOrder() const
 427 {
 428     return m_model->sortOrder();
 429 }
 430
 431 void DolphinView::setSortFoldersFirst(bool foldersFirst)
 432 {
 433     if (sortFoldersFirst() != foldersFirst) {
 434         updateSortFoldersFirst(foldersFirst);
 435     }
 436 }
 437
 438 bool DolphinView::sortFoldersFirst() const
 439 {
 440     return m_model->sortDirectoriesFirst();
 441 }
 442
 443 void DolphinView::setVisibleRoles(const QList<QByteArray>& roles)
 444 {
 445     const QList<QByteArray> previousRoles = roles;
 446
 447     ViewProperties props(viewPropertiesUrl());
 448     props.setVisibleRoles(roles);
 449
 450     m_visibleRoles = roles;
 451     m_view->setVisibleRoles(roles);
 452
 453     emit visibleRolesChanged(m_visibleRoles, previousRoles);
 454 }
 455
 456 QList<QByteArray> DolphinView::visibleRoles() const
 457 {
 458     return m_visibleRoles;
 459 }
 460
 461 void DolphinView::reload()
 462 {
 463     QByteArray viewState;
 464     QDataStream saveStream(&viewState, QIODevice::WriteOnly);
 465     saveState(saveStream);
 466
 467     const KFileItemList itemList = selectedItems();
 468     m_selectedUrls.clear();
 469     m_selectedUrls = itemList.urlList();
 470
 471     setUrl(url());
 472     loadDirectory(url(), true);
 473
 474     QDataStream restoreStream(viewState);
 475     restoreState(restoreStream);
 476 }
 477
 478 void DolphinView::stopLoading()
 479 {
 480     m_model->cancelDirectoryLoading();
 481 }
 482
 483 void DolphinView::readSettings()
 484 {
 485     const int oldZoomLevel = m_view->zoomLevel();
 486
 487     GeneralSettings::self()->readConfig();
 488     m_view->readSettings();
 489     applyViewProperties();
 490
 491     const int delay = GeneralSettings::autoExpandFolders() ? 750 : -1;
 492     m_container->controller()->setAutoActivationDelay(delay);
 493
 494     const int newZoomLevel = m_view->zoomLevel();
 495     if (newZoomLevel != oldZoomLevel) {
 496         emit zoomLevelChanged(newZoomLevel, oldZoomLevel);
 497     }
 498 }
 499
 500 void DolphinView::writeSettings()
 501 {
 502     GeneralSettings::self()->writeConfig();
 503     m_view->writeSettings();
 504 }
 505
 506 void DolphinView::setNameFilter(const QString& nameFilter)
 507 {
 508     m_model->setNameFilter(nameFilter);
 509 }
 510
 511 QString DolphinView::nameFilter() const
 512 {
 513     return m_model->nameFilter();
 514 }
 515
 516 void DolphinView::setMimeTypeFilters(const QStringList& filters)
 517 {
 518     return m_model->setMimeTypeFilters(filters);
 519 }
 520
 521 QStringList DolphinView::mimeTypeFilters() const
 522 {
 523     return m_model->mimeTypeFilters();
 524 }
 525
 526 QString DolphinView::statusBarText() const
 527 {
 528     QString summary;
 529     QString foldersText;
 530     QString filesText;
 531
 532     int folderCount = 0;
 533     int fileCount = 0;
 534     KIO::filesize_t totalFileSize = 0;
 535
 536     if (m_container->controller()->selectionManager()->hasSelection()) {
 537         // Give a summary of the status of the selected files
 538         const KFileItemList list = selectedItems();
 539         foreach (const KFileItem& item, list) {
 540             if (item.isDir()) {
 541                 ++folderCount;
 542             } else {
 543                 ++fileCount;
 544                 totalFileSize += item.size();
 545             }
 546         }
 547
 548         if (folderCount + fileCount == 1) {
 549             // If only one item is selected, show the filename
 550             filesText = i18nc("@info:status", "<filename>%1</filename> selected", list.first().text());
 551         } else {
 552             // At least 2 items are selected
 553             foldersText = i18ncp("@info:status", "1 Folder selected", "%1 Folders selected", folderCount);
 554             filesText = i18ncp("@info:status", "1 File selected", "%1 Files selected", fileCount);
 555         }
 556     } else {
 557         calculateItemCount(fileCount, folderCount, totalFileSize);
 558         foldersText = i18ncp("@info:status", "1 Folder", "%1 Folders", folderCount);
 559         filesText = i18ncp("@info:status", "1 File", "%1 Files", fileCount);
 560     }
 561
 562     if (fileCount > 0 && folderCount > 0) {
 563         summary = i18nc("@info:status folders, files (size)", "%1, %2 (%3)",
 564                         foldersText, filesText,
 565                         KGlobal::locale()->formatByteSize(totalFileSize));
 566     } else if (fileCount > 0) {
 567         summary = i18nc("@info:status files (size)", "%1 (%2)",
 568                         filesText,
 569                         KGlobal::locale()->formatByteSize(totalFileSize));
 570     } else if (folderCount > 0) {
 571         summary = foldersText;
 572     } else {
 573         summary = i18nc("@info:status", "0 Folders, 0 Files");
 574     }
 575
 576     return summary;
 577 }
 578
 579 QList<QAction*> DolphinView::versionControlActions(const KFileItemList& items) const
 580 {
 581     QList<QAction*> actions;
 582
 583     if (items.isEmpty()) {
 584         const KFileItem item = m_model->rootItem();
 585         if (!item.isNull()) {
 586             actions = m_versionControlObserver->actions(KFileItemList() << item);
 587         }
 588     } else {
 589         actions = m_versionControlObserver->actions(items);
 590     }
 591
 592     return actions;
 593 }
 594
 595 void DolphinView::setUrl(const KUrl& url)
 596 {
 597     if (url == m_url) {
 598         return;
 599     }
 600
 601     clearSelection();
 602
 603     emit urlAboutToBeChanged(url);
 604     m_url = url;
 605
 606     hideToolTip();
 607
 608     // It is important to clear the items from the model before
 609     // applying the view properties, otherwise expensive operations
 610     // might be done on the existing items although they get cleared
 611     // anyhow afterwards by loadDirectory().
 612     m_model->clear();
 613     applyViewProperties();
 614     loadDirectory(url);
 615
 616     emit urlChanged(url);
 617 }
 618
 619 void DolphinView::selectAll()
 620 {
 621     KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 622     selectionManager->setSelected(0, m_model->count());
 623 }
 624
 625 void DolphinView::invertSelection()
 626 {
 627     KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
 628     selectionManager->setSelected(0, m_model->count(), KItemListSelectionManager::Toggle);
 629 }
 630
 631 void DolphinView::clearSelection()
 632 {
 633     m_selectedUrls.clear();
 634     m_container->controller()->selectionManager()->clearSelection();
 635 }
 636
 637 void DolphinView::renameSelectedItems()
 638 {
 639     const KFileItemList items = selectedItems();
 640      if (items.isEmpty()) {
 641          return;
 642      }
 643
 644      if (items.count() == 1 && GeneralSettings::renameInline()) {
 645          const int index = m_model->index(items.first());
 646          m_view->editRole(index, "text");
 647      } else {
 648          RenameDialog* dialog = new RenameDialog(this, items);
 649          dialog->setAttribute(Qt::WA_DeleteOnClose);
 650          dialog->show();
 651          dialog->raise();
 652          dialog->activateWindow();
 653      }
 654
 655      // Assure that the current index remains visible when KFileItemModel
 656      // will notify the view about changed items (which might result in
 657      // a changed sorting).
 658      m_assureVisibleCurrentIndex = true;
 659 }
 660
 661 void DolphinView::trashSelectedItems()
 662 {
 663     const KUrl::List list = simplifiedSelectedUrls();
 664     KonqOperations::del(this, KonqOperations::TRASH, list);
 665 }
 666
 667 void DolphinView::deleteSelectedItems()
 668 {
 669     const KUrl::List list = simplifiedSelectedUrls();
 670     const bool del = KonqOperations::askDeleteConfirmation(list,
 671                      KonqOperations::DEL,
 672                      KonqOperations::DEFAULT_CONFIRMATION,
 673                      this);
 674
 675     if (del) {
 676         KIO::Job* job = KIO::del(list);
 677         if (job->ui()) {
 678             job->ui()->setWindow(this);
 679         }
 680         connect(job, SIGNAL(result(KJob*)),
 681                 this, SLOT(slotDeleteFileFinished(KJob*)));
 682     }
 683 }
 684
 685 void DolphinView::cutSelectedItems()
 686 {
 687     QMimeData* mimeData = selectionMimeData();
 688     KonqMimeData::addIsCutSelection(mimeData, true);
 689     QApplication::clipboard()->setMimeData(mimeData);
 690 }
 691
 692 void DolphinView::copySelectedItems()
 693 {
 694     QMimeData* mimeData = selectionMimeData();
 695     QApplication::clipboard()->setMimeData(mimeData);
 696 }
 697
 698 void DolphinView::paste()
 699 {
 700     pasteToUrl(url());
 701 }
 702
 703 void DolphinView::pasteIntoFolder()
 704 {
 705     const KFileItemList items = selectedItems();
 706     if ((items.count() == 1) && items.first().isDir()) {
 707         pasteToUrl(items.first().url());
 708     }
 709 }
 710
 711 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 712 {
 713     switch (event->type()) {
 714     case QEvent::FocusIn:
 715         if (watched == m_container) {
 716             setActive(true);
 717         }
 718         break;
 719
 720     case QEvent::GraphicsSceneDragEnter:
 721         if (watched == m_view) {
 722             m_dragging = true;
 723         }
 724         break;
 725
 726     case QEvent::GraphicsSceneDragLeave:
 727         if (watched == m_view) {
 728             m_dragging = false;
 729         }
 730         break;
 731
 732     case QEvent::GraphicsSceneDrop:
 733         if (watched == m_view) {
 734             m_dragging = false;
 735         }
 736     default:
 737         break;
 738     }
 739
 740     return QWidget::eventFilter(watched, event);
 741 }
 742
 743 void DolphinView::wheelEvent(QWheelEvent* event)
 744 {
 745     if (event->modifiers().testFlag(Qt::ControlModifier)) {
 746         const int numDegrees = event->delta() / 8;
 747         const int numSteps = numDegrees / 15;
 748
 749         setZoomLevel(zoomLevel() + numSteps);
 750         event->accept();
 751     } else {
 752         event->ignore();
 753     }
 754 }
 755
 756 void DolphinView::hideEvent(QHideEvent* event)
 757 {
 758     hideToolTip();
 759     QWidget::hideEvent(event);
 760 }
 761
 762 bool DolphinView::event(QEvent* event)
 763 {
 764     /* See Bug 297355
 765      * Dolphin leaves file preview tooltips open even when is not visible.
 766      *
 767      * Hide tool-tip when Dolphin loses focus.
 768      */
 769     if (event->type() == QEvent::WindowDeactivate) {
 770         hideToolTip();
 771     }
 772
 773     return QWidget::event(event);
 774 }
 775
 776 void DolphinView::activate()
 777 {
 778     setActive(true);
 779 }
 780
 781 void DolphinView::slotItemActivated(int index)
 782 {
 783     const KFileItem item = m_model->fileItem(index);
 784     if (!item.isNull()) {
 785         emit itemActivated(item);
 786     }
 787 }
 788
 789 void DolphinView::slotItemsActivated(const QSet<int>& indexes)
 790 {
 791     Q_ASSERT(indexes.count() >= 2);
 792
 793     KFileItemList items;
 794
 795     QSetIterator<int> it(indexes);
 796     while (it.hasNext()) {
 797         const int index = it.next();
 798         items.append(m_model->fileItem(index));
 799     }
 800
 801     foreach (const KFileItem& item, items) {
 802         if (item.isDir()) {
 803             emit tabRequested(item.url());
 804         } else {
 805             emit itemActivated(item);
 806         }
 807     }
 808 }
 809
 810 void DolphinView::slotItemMiddleClicked(int index)
 811 {
 812     const KFileItem item = m_model->fileItem(index);
 813     if (item.isDir() || isTabsForFilesEnabled()) {
 814         emit tabRequested(item.url());
 815     }
 816 }
 817
 818 void DolphinView::slotItemContextMenuRequested(int index, const QPointF& pos)
 819 {
 820     const KFileItem item = m_model->fileItem(index);
 821     emit requestContextMenu(pos.toPoint(), item, url(), QList<QAction*>());
 822 }
 823
 824 void DolphinView::slotViewContextMenuRequested(const QPointF& pos)
 825 {
 826     emit requestContextMenu(pos.toPoint(), KFileItem(), url(), QList<QAction*>());
 827 }
 828
 829 void DolphinView::slotHeaderContextMenuRequested(const QPointF& pos)
 830 {
 831     ViewProperties props(viewPropertiesUrl());
 832
 833     QPointer<KMenu> menu = new KMenu(QApplication::activeWindow());
 834
 835     KItemListView* view = m_container->controller()->view();
 836     const QSet<QByteArray> visibleRolesSet = view->visibleRoles().toSet();
 837
 838     bool nepomukRunning = false;
 839     bool indexingEnabled = false;
 840 #ifdef HAVE_NEPOMUK
 841     nepomukRunning = (Nepomuk::ResourceManager::instance()->initialized());
 842     if (nepomukRunning) {
 843         KConfig config("nepomukserverrc");
 844         indexingEnabled = config.group("Service-nepomukfileindexer").readEntry("autostart", false);
 845     }
 846 #endif
 847
 848     QString groupName;
 849     QMenu* groupMenu = 0;
 850
 851     // Add all roles to the menu that can be shown or hidden by the user
 852     const QList<KFileItemModel::RoleInfo> rolesInfo = KFileItemModel::rolesInformation();
 853     foreach (const KFileItemModel::RoleInfo& info, rolesInfo) {
 854         if (info.role == "text") {
 855             // It should not be possible to hide the "text" role
 856             continue;
 857         }
 858
 859         const QString text = m_model->roleDescription(info.role);
 860         QAction* action = 0;
 861         if (info.group.isEmpty()) {
 862             action = menu->addAction(text);
 863         } else {
 864             if (!groupMenu || info.group != groupName) {
 865                 groupName = info.group;
 866                 groupMenu = menu->addMenu(groupName);
 867             }
 868
 869             action = groupMenu->addAction(text);
 870         }
 871
 872         action->setCheckable(true);
 873         action->setChecked(visibleRolesSet.contains(info.role));
 874         action->setData(info.role);
 875
 876         const bool enable = (!info.requiresNepomuk && !info.requiresIndexer) ||
 877                             (info.requiresNepomuk && nepomukRunning) ||
 878                             (info.requiresIndexer && indexingEnabled);
 879         action->setEnabled(enable);
 880     }
 881
 882     menu->addSeparator();
 883
 884     QActionGroup* widthsGroup = new QActionGroup(menu);
 885     const bool autoColumnWidths = props.headerColumnWidths().isEmpty();
 886
 887     QAction* autoAdjustWidthsAction = menu->addAction(i18nc("@action:inmenu", "Automatic Column Widths"));
 888     autoAdjustWidthsAction->setCheckable(true);
 889     autoAdjustWidthsAction->setChecked(autoColumnWidths);
 890     autoAdjustWidthsAction->setActionGroup(widthsGroup);
 891
 892     QAction* customWidthsAction = menu->addAction(i18nc("@action:inmenu", "Custom Column Widths"));
 893     customWidthsAction->setCheckable(true);
 894     customWidthsAction->setChecked(!autoColumnWidths);
 895     customWidthsAction->setActionGroup(widthsGroup);
 896
 897     QAction* action = menu->exec(pos.toPoint());
 898     if (menu && action) {
 899         KItemListHeader* header = view->header();
 900
 901         if (action == autoAdjustWidthsAction) {
 902             // Clear the column-widths from the viewproperties and turn on
 903             // the automatic resizing of the columns
 904             props.setHeaderColumnWidths(QList<int>());
 905             header->setAutomaticColumnResizing(true);
 906         } else if (action == customWidthsAction) {
 907             // Apply the current column-widths as custom column-widths and turn
 908             // off the automatic resizing of the columns
 909             QList<int> columnWidths;
 910             foreach (const QByteArray& role, view->visibleRoles()) {
 911                 columnWidths.append(header->columnWidth(role));
 912             }
 913             props.setHeaderColumnWidths(columnWidths);
 914             header->setAutomaticColumnResizing(false);
 915         } else {
 916             // Show or hide the selected role
 917             const QByteArray selectedRole = action->data().toByteArray();
 918
 919             QList<QByteArray> visibleRoles = view->visibleRoles();
 920             if (action->isChecked()) {
 921                 visibleRoles.append(selectedRole);
 922             } else {
 923                 visibleRoles.removeOne(selectedRole);
 924             }
 925
 926             view->setVisibleRoles(visibleRoles);
 927             props.setVisibleRoles(visibleRoles);
 928
 929             QList<int> columnWidths;
 930             if (!header->automaticColumnResizing()) {
 931                 foreach (const QByteArray& role, view->visibleRoles()) {
 932                     columnWidths.append(header->columnWidth(role));
 933                 }
 934             }
 935             props.setHeaderColumnWidths(columnWidths);
 936         }
 937     }
 938
 939     delete menu;
 940 }
 941
 942 void DolphinView::slotHeaderColumnWidthChanged(const QByteArray& role, qreal current, qreal previous)
 943 {
 944     Q_UNUSED(previous);
 945
 946     const QList<QByteArray> visibleRoles = m_view->visibleRoles();
 947
 948     ViewProperties props(viewPropertiesUrl());
 949     QList<int> columnWidths = props.headerColumnWidths();
 950     if (columnWidths.count() != visibleRoles.count()) {
 951         columnWidths.clear();
 952         columnWidths.reserve(visibleRoles.count());
 953         const KItemListHeader* header = m_view->header();
 954         foreach (const QByteArray& role, visibleRoles) {
 955             const int width = header->columnWidth(role);
 956             columnWidths.append(width);
 957         }
 958     }
 959
 960     const int roleIndex = visibleRoles.indexOf(role);
 961     Q_ASSERT(roleIndex >= 0 && roleIndex < columnWidths.count());
 962     columnWidths[roleIndex] = current;
 963
 964     props.setHeaderColumnWidths(columnWidths);
 965 }
 966
 967 void DolphinView::slotItemHovered(int index)
 968 {
 969     const KFileItem item = m_model->fileItem(index);
 970
 971     if (GeneralSettings::showToolTips() && !m_dragging) {
 972         QRectF itemRect = m_container->controller()->view()->itemContextRect(index);
 973         const QPoint pos = m_container->mapToGlobal(itemRect.topLeft().toPoint());
 974         itemRect.moveTo(pos);
 975
 976         m_toolTipManager->showToolTip(item, itemRect);
 977     }
 978
 979     emit requestItemInfo(item);
 980 }
 981
 982 void DolphinView::slotItemUnhovered(int index)
 983 {
 984     Q_UNUSED(index);
 985     hideToolTip();
 986     emit requestItemInfo(KFileItem());
 987 }
 988
 989 void DolphinView::slotItemDropEvent(int index, QGraphicsSceneDragDropEvent* event)
 990 {
 991     KUrl destUrl;
 992     KFileItem destItem = m_model->fileItem(index);
 993     if (destItem.isNull() || (!destItem.isDir() && !destItem.isDesktopFile())) {
 994         // Use the URL of the view as drop target if the item is no directory
 995         // or desktop-file
 996         destItem = m_model->rootItem();
 997         destUrl = url();
 998     } else {
 999         // The item represents a directory or desktop-file
1000         destUrl = destItem.url();
1001     }
1002
1003     QDropEvent dropEvent(event->pos().toPoint(),
1004                          event->possibleActions(),
1005                          event->mimeData(),
1006                          event->buttons(),
1007                          event->modifiers());
1008
1009     const QString error = DragAndDropHelper::dropUrls(destItem, destUrl, &dropEvent);
1010     if (!error.isEmpty()) {
1011         emit errorMessage(error);
1012     }
1013
1014     if (destUrl == url()) {
1015         // Mark the dropped urls as selected.
1016         markPastedUrlsAsSelected(event->mimeData());
1017     }
1018 }
1019
1020 void DolphinView::slotModelChanged(KItemModelBase* current, KItemModelBase* previous)
1021 {
1022     if (previous != 0) {
1023         disconnect(previous, SIGNAL(directoryLoadingCompleted()), this, SLOT(slotDirectoryLoadingCompleted()));
1024         m_versionControlObserver->setModel(0);
1025     }
1026
1027     if (current) {
1028         Q_ASSERT(qobject_cast<KFileItemModel*>(current));
1029         connect(current, SIGNAL(loadingCompleted()), this, SLOT(slotDirectoryLoadingCompleted()));
1030
1031         KFileItemModel* fileItemModel = static_cast<KFileItemModel*>(current);
1032         m_versionControlObserver->setModel(fileItemModel);
1033     }
1034 }
1035
1036 void DolphinView::slotMouseButtonPressed(int itemIndex, Qt::MouseButtons buttons)
1037 {
1038     hideToolTip();
1039
1040     if (itemIndex < 0) {
1041         // Trigger the history navigation only when clicking on the viewport:
1042         // Above an item the XButtons provide a simple way to select items in
1043         // the singleClick mode.
1044         if (buttons & Qt::XButton1) {
1045             emit goBackRequested();
1046         } else if (buttons & Qt::XButton2) {
1047             emit goForwardRequested();
1048         }
1049     }
1050 }
1051
1052 void DolphinView::slotSelectionChanged(const QSet<int>& current, const QSet<int>& previous)
1053 {
1054     const int currentCount = current.count();
1055     const int previousCount = previous.count();
1056     const bool selectionStateChanged = (currentCount == 0 && previousCount  > 0) ||
1057                                        (currentCount >  0 && previousCount == 0);
1058
1059     // If nothing has been selected before and something got selected (or if something
1060     // was selected before and now nothing is selected) the selectionChangedSignal must
1061     // be emitted asynchronously as fast as possible to update the edit-actions.
1062     m_selectionChangedTimer->setInterval(selectionStateChanged ? 0 : 300);
1063     m_selectionChangedTimer->start();
1064 }
1065
1066 void DolphinView::emitSelectionChangedSignal()
1067 {
1068     m_selectionChangedTimer->stop();
1069     emit selectionChanged(selectedItems());
1070 }
1071
1072 void DolphinView::updateSortRole(const QByteArray& role)
1073 {
1074     ViewProperties props(viewPropertiesUrl());
1075     props.setSortRole(role);
1076
1077     KItemModelBase* model = m_container->controller()->model();
1078     model->setSortRole(role);
1079
1080     emit sortRoleChanged(role);
1081 }
1082
1083 void DolphinView::updateSortOrder(Qt::SortOrder order)
1084 {
1085     ViewProperties props(viewPropertiesUrl());
1086     props.setSortOrder(order);
1087
1088     m_model->setSortOrder(order);
1089
1090     emit sortOrderChanged(order);
1091 }
1092
1093 void DolphinView::updateSortFoldersFirst(bool foldersFirst)
1094 {
1095     ViewProperties props(viewPropertiesUrl());
1096     props.setSortFoldersFirst(foldersFirst);
1097
1098     m_model->setSortDirectoriesFirst(foldersFirst);
1099
1100     emit sortFoldersFirstChanged(foldersFirst);
1101 }
1102
1103 QPair<bool, QString> DolphinView::pasteInfo() const
1104 {
1105     return KonqOperations::pasteInfo(url());
1106 }
1107
1108 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
1109 {
1110     m_tabsForFiles = tabsForFiles;
1111 }
1112
1113 bool DolphinView::isTabsForFilesEnabled() const
1114 {
1115     return m_tabsForFiles;
1116 }
1117
1118 bool DolphinView::itemsExpandable() const
1119 {
1120     return m_mode == DetailsView;
1121 }
1122
1123 void DolphinView::restoreState(QDataStream& stream)
1124 {
1125     // Restore the current item that had the keyboard focus
1126     stream >> m_currentItemUrl;
1127
1128     // Restore the view position
1129     stream >> m_restoredContentsPosition;
1130
1131     // Restore expanded folders (only relevant for the details view - will be ignored by the view in other view modes)
1132     QSet<KUrl> urls;
1133     stream >> urls;
1134     m_model->restoreExpandedDirectories(urls);
1135 }
1136
1137 void DolphinView::saveState(QDataStream& stream)
1138 {
1139     // Save the current item that has the keyboard focus
1140     const int currentIndex = m_container->controller()->selectionManager()->currentItem();
1141     if (currentIndex != -1) {
1142         KFileItem item = m_model->fileItem(currentIndex);
1143         Q_ASSERT(!item.isNull()); // If the current index is valid a item must exist
1144         KUrl currentItemUrl = item.url();
1145         stream << currentItemUrl;
1146     } else {
1147         stream << KUrl();
1148     }
1149
1150     // Save view position
1151     const qreal x = m_container->horizontalScrollBar()->value();
1152     const qreal y = m_container->verticalScrollBar()->value();
1153     stream << QPoint(x, y);
1154
1155     // Save expanded folders (only relevant for the details view - the set will be empty in other view modes)
1156     stream << m_model->expandedDirectories();
1157 }
1158
1159 KFileItem DolphinView::rootItem() const
1160 {
1161     return m_model->rootItem();
1162 }
1163
1164 void DolphinView::setViewPropertiesContext(const QString& context)
1165 {
1166     m_viewPropertiesContext = context;
1167 }
1168
1169 QString DolphinView::viewPropertiesContext() const
1170 {
1171     return m_viewPropertiesContext;
1172 }
1173
1174 void DolphinView::observeCreatedItem(const KUrl& url)
1175 {
1176     if (m_active) {
1177         clearSelection();
1178         markUrlAsCurrent(url);
1179         markUrlsAsSelected(QList<KUrl>() << url);
1180     }
1181 }
1182
1183 void DolphinView::slotDirectoryRedirection(const KUrl& oldUrl, const KUrl& newUrl)
1184 {
1185     if (oldUrl.equals(url(), KUrl::CompareWithoutTrailingSlash)) {
1186         emit redirection(oldUrl, newUrl);
1187         m_url = newUrl; // #186947
1188     }
1189 }
1190
1191 void DolphinView::updateViewState()
1192 {
1193     if (m_currentItemUrl != KUrl()) {
1194         KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
1195         const int currentIndex = m_model->index(m_currentItemUrl);
1196         if (currentIndex != -1) {
1197             selectionManager->setCurrentItem(currentIndex);
1198
1199             // scroll to current item and reset the state
1200             if (m_scrollToCurrentItem) {
1201                 m_view->scrollToItem(currentIndex);
1202                 m_scrollToCurrentItem = false;
1203             }
1204         } else {
1205             selectionManager->setCurrentItem(0);
1206         }
1207         m_currentItemUrl = KUrl();
1208     }
1209
1210     if (!m_restoredContentsPosition.isNull()) {
1211         const int x = m_restoredContentsPosition.x();
1212         const int y = m_restoredContentsPosition.y();
1213         m_restoredContentsPosition = QPoint();
1214
1215         m_container->horizontalScrollBar()->setValue(x);
1216         m_container->verticalScrollBar()->setValue(y);
1217     }
1218
1219     if (!m_selectedUrls.isEmpty()) {
1220         KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
1221         QSet<int> selectedItems = selectionManager->selectedItems();
1222
1223         for (QList<KUrl>::iterator it = m_selectedUrls.begin(); it != m_selectedUrls.end(); ++it) {
1224             const int index = m_model->index(*it);
1225             if (index >= 0) {
1226                 selectedItems.insert(index);
1227                 m_selectedUrls.erase(it);
1228             }
1229         }
1230
1231         selectionManager->setSelectedItems(selectedItems);
1232     }
1233 }
1234
1235 void DolphinView::hideToolTip()
1236 {
1237     if (GeneralSettings::showToolTips()) {
1238         m_toolTipManager->hideToolTip();
1239     }
1240 }
1241
1242 void DolphinView::calculateItemCount(int& fileCount,
1243                                      int& folderCount,
1244                                      KIO::filesize_t& totalFileSize) const
1245 {
1246     const int itemCount = m_model->count();
1247     for (int i = 0; i < itemCount; ++i) {
1248         const KFileItem item = m_model->fileItem(i);
1249         if (item.isDir()) {
1250             ++folderCount;
1251         } else {
1252             ++fileCount;
1253             totalFileSize += item.size();
1254         }
1255     }
1256 }
1257
1258 void DolphinView::showHoverInformation(const KFileItem& item)
1259 {
1260     emit requestItemInfo(item);
1261 }
1262
1263 void DolphinView::clearHoverInformation()
1264 {
1265     emit requestItemInfo(KFileItem());
1266 }
1267
1268 void DolphinView::slotDeleteFileFinished(KJob* job)
1269 {
1270     if (job->error() == 0) {
1271         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1272     } else if (job->error() != KIO::ERR_USER_CANCELED) {
1273         emit errorMessage(job->errorString());
1274     }
1275 }
1276
1277 void DolphinView::slotDirectoryLoadingStarted()
1278 {
1279     // Disable the writestate temporary until it can be determined in a fast way
1280     // in DolphinView::slotLoadingCompleted()
1281     if (m_isFolderWritable) {
1282         m_isFolderWritable = false;
1283         emit writeStateChanged(m_isFolderWritable);
1284     }
1285
1286     emit directoryLoadingStarted();
1287 }
1288
1289 void DolphinView::slotDirectoryLoadingCompleted()
1290 {
1291     // Update the view-state. This has to be done asynchronously
1292     // because the view might not be in its final state yet.
1293     QTimer::singleShot(0, this, SLOT(updateViewState()));
1294
1295     emit directoryLoadingCompleted();
1296
1297     updateWritableState();
1298 }
1299
1300 void DolphinView::slotItemsChanged()
1301 {
1302     m_assureVisibleCurrentIndex = false;
1303 }
1304
1305 void DolphinView::slotSortOrderChangedByHeader(Qt::SortOrder current, Qt::SortOrder previous)
1306 {
1307     Q_UNUSED(previous);
1308     Q_ASSERT(m_model->sortOrder() == current);
1309
1310     ViewProperties props(viewPropertiesUrl());
1311     props.setSortOrder(current);
1312
1313     emit sortOrderChanged(current);
1314 }
1315
1316 void DolphinView::slotSortRoleChangedByHeader(const QByteArray& current, const QByteArray& previous)
1317 {
1318     Q_UNUSED(previous);
1319     Q_ASSERT(m_model->sortRole() == current);
1320
1321     ViewProperties props(viewPropertiesUrl());
1322     props.setSortRole(current);
1323
1324     emit sortRoleChanged(current);
1325 }
1326
1327 void DolphinView::slotVisibleRolesChangedByHeader(const QList<QByteArray>& current,
1328                                                   const QList<QByteArray>& previous)
1329 {
1330     Q_UNUSED(previous);
1331     Q_ASSERT(m_container->controller()->view()->visibleRoles() == current);
1332
1333     const QList<QByteArray> previousVisibleRoles = m_visibleRoles;
1334
1335     m_visibleRoles = current;
1336
1337     ViewProperties props(viewPropertiesUrl());
1338     props.setVisibleRoles(m_visibleRoles);
1339
1340     emit visibleRolesChanged(m_visibleRoles, previousVisibleRoles);
1341 }
1342
1343 void DolphinView::slotRoleEditingFinished(int index, const QByteArray& role, const QVariant& value)
1344 {
1345     if (index < 0 || index >= m_model->count()) {
1346         return;
1347     }
1348
1349     if (role == "text") {
1350         const KFileItem oldItem = m_model->fileItem(index);
1351         const QString newName = value.toString();
1352         if (!newName.isEmpty() && newName != oldItem.text() && newName != QLatin1String(".") && newName != QLatin1String("..")) {
1353             const KUrl oldUrl = oldItem.url();
1354
1355             const KUrl newUrl(url().path(KUrl::AddTrailingSlash) + newName);
1356             const bool newNameExistsAlready = (m_model->index(newUrl) >= 0);
1357             if (!newNameExistsAlready) {
1358                 // Only change the data in the model if no item with the new name
1359                 // is in the model yet. If there is an item with the new name
1360                 // already, calling KonqOperations::rename() will open a dialog
1361                 // asking for a new name, and KFileItemModel will update the
1362                 // data when the dir lister signals that the file name has changed.
1363                 QHash<QByteArray, QVariant> data;
1364                 data.insert(role, value);
1365                 m_model->setData(index, data);
1366             }
1367
1368             KonqOperations::rename(this, oldUrl, newName);
1369         }
1370     }
1371 }
1372
1373 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1374 {
1375     if (!url.isValid()) {
1376         const QString location(url.pathOrUrl());
1377         if (location.isEmpty()) {
1378             emit errorMessage(i18nc("@info:status", "The location is empty."));
1379         } else {
1380             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1381         }
1382         return;
1383     }
1384
1385     if (reload) {
1386         m_model->refreshDirectory(url);
1387     } else {
1388         m_model->loadDirectory(url);
1389     }
1390 }
1391
1392 void DolphinView::applyViewProperties()
1393 {
1394     m_view->beginTransaction();
1395
1396     const ViewProperties props(viewPropertiesUrl());
1397
1398     const Mode mode = props.viewMode();
1399     if (m_mode != mode) {
1400         const Mode previousMode = m_mode;
1401         m_mode = mode;
1402
1403         // Changing the mode might result in changing
1404         // the zoom level. Remember the old zoom level so
1405         // that zoomLevelChanged() can get emitted.
1406         const int oldZoomLevel = m_view->zoomLevel();
1407         applyModeToView();
1408
1409         emit modeChanged(m_mode, previousMode);
1410
1411         if (m_view->zoomLevel() != oldZoomLevel) {
1412             emit zoomLevelChanged(m_view->zoomLevel(), oldZoomLevel);
1413         }
1414     }
1415
1416     const bool hiddenFilesShown = props.hiddenFilesShown();
1417     if (hiddenFilesShown != m_model->showHiddenFiles()) {
1418         m_model->setShowHiddenFiles(hiddenFilesShown);
1419         emit hiddenFilesShownChanged(hiddenFilesShown);
1420     }
1421
1422     const bool groupedSorting = props.groupedSorting();
1423     if (groupedSorting != m_model->groupedSorting()) {
1424         m_model->setGroupedSorting(groupedSorting);
1425         emit groupedSortingChanged(groupedSorting);
1426     }
1427
1428     const QByteArray sortRole = props.sortRole();
1429     if (sortRole != m_model->sortRole()) {
1430         m_model->setSortRole(sortRole);
1431         emit sortRoleChanged(sortRole);
1432     }
1433
1434     const Qt::SortOrder sortOrder = props.sortOrder();
1435     if (sortOrder != m_model->sortOrder()) {
1436         m_model->setSortOrder(sortOrder);
1437         emit sortOrderChanged(sortOrder);
1438     }
1439
1440     const bool sortFoldersFirst = props.sortFoldersFirst();
1441     if (sortFoldersFirst != m_model->sortDirectoriesFirst()) {
1442         m_model->setSortDirectoriesFirst(sortFoldersFirst);
1443         emit sortFoldersFirstChanged(sortFoldersFirst);
1444     }
1445
1446     const QList<QByteArray> visibleRoles = props.visibleRoles();
1447     if (visibleRoles != m_visibleRoles) {
1448         const QList<QByteArray> previousVisibleRoles = m_visibleRoles;
1449         m_visibleRoles = visibleRoles;
1450         m_view->setVisibleRoles(visibleRoles);
1451         emit visibleRolesChanged(m_visibleRoles, previousVisibleRoles);
1452     }
1453
1454     const bool previewsShown = props.previewsShown();
1455     if (previewsShown != m_view->previewsShown()) {
1456         const int oldZoomLevel = zoomLevel();
1457
1458         m_view->setPreviewsShown(previewsShown);
1459         emit previewsShownChanged(previewsShown);
1460
1461         // Changing the preview-state might result in a changed zoom-level
1462         if (oldZoomLevel != zoomLevel()) {
1463             emit zoomLevelChanged(zoomLevel(), oldZoomLevel);
1464         }
1465     }
1466
1467     KItemListView* itemListView = m_container->controller()->view();
1468     if (itemListView->isHeaderVisible()) {
1469         KItemListHeader* header = itemListView->header();
1470         const QList<int> headerColumnWidths = props.headerColumnWidths();
1471         const int rolesCount = m_visibleRoles.count();
1472         if (headerColumnWidths.count() == rolesCount) {
1473             header->setAutomaticColumnResizing(false);
1474
1475             QHash<QByteArray, qreal> columnWidths;
1476             for (int i = 0; i < rolesCount; ++i) {
1477                 columnWidths.insert(m_visibleRoles[i], headerColumnWidths[i]);
1478             }
1479             header->setColumnWidths(columnWidths);
1480         } else {
1481             header->setAutomaticColumnResizing(true);
1482         }
1483     }
1484
1485     m_view->endTransaction();
1486 }
1487
1488 void DolphinView::applyModeToView()
1489 {
1490     switch (m_mode) {
1491     case IconsView:   m_view->setItemLayout(KFileItemListView::IconsLayout); break;
1492     case CompactView: m_view->setItemLayout(KFileItemListView::CompactLayout); break;
1493     case DetailsView: m_view->setItemLayout(KFileItemListView::DetailsLayout); break;
1494     default: Q_ASSERT(false); break;
1495     }
1496 }
1497
1498 void DolphinView::pasteToUrl(const KUrl& url)
1499 {
1500     markPastedUrlsAsSelected(QApplication::clipboard()->mimeData());
1501     KonqOperations::doPaste(this, url);
1502 }
1503
1504 KUrl::List DolphinView::simplifiedSelectedUrls() const
1505 {
1506     KUrl::List urls;
1507
1508     const KFileItemList items = selectedItems();
1509     foreach (const KFileItem& item, items) {
1510         urls.append(item.url());
1511     }
1512
1513     if (itemsExpandable()) {
1514         // TODO: Check if we still need KDirModel for this in KDE 5.0
1515         urls = KDirModel::simplifiedUrlList(urls);
1516     }
1517
1518     return urls;
1519 }
1520
1521 QMimeData* DolphinView::selectionMimeData() const
1522 {
1523     const KItemListSelectionManager* selectionManager = m_container->controller()->selectionManager();
1524     const QSet<int> selectedIndexes = selectionManager->selectedItems();
1525
1526     return m_model->createMimeData(selectedIndexes);
1527 }
1528
1529 void DolphinView::markPastedUrlsAsSelected(const QMimeData* mimeData)
1530 {
1531     const KUrl::List sourceUrls = KUrl::List::fromMimeData(mimeData);
1532     KUrl::List destUrls;
1533     foreach (const KUrl& source, sourceUrls) {
1534         KUrl destination(url().url() + '/' + source.fileName());
1535         destUrls << destination;
1536     }
1537     markUrlsAsSelected(destUrls);
1538 }
1539
1540 void DolphinView::updateWritableState()
1541 {
1542     const bool wasFolderWritable = m_isFolderWritable;
1543     m_isFolderWritable = true;
1544
1545     const KFileItem item = m_model->rootItem();
1546     if (!item.isNull()) {
1547         KFileItemListProperties capabilities(KFileItemList() << item);
1548         m_isFolderWritable = capabilities.supportsWriting();
1549     }
1550     if (m_isFolderWritable != wasFolderWritable) {
1551         emit writeStateChanged(m_isFolderWritable);
1552     }
1553 }
1554
1555 KUrl DolphinView::viewPropertiesUrl() const
1556 {
1557     if (m_viewPropertiesContext.isEmpty()) {
1558         return m_url;
1559     }
1560
1561     KUrl url;
1562     url.setProtocol(m_url.protocol());
1563     url.setPath(m_viewPropertiesContext);
1564     return url;
1565 }
1566
1567 #include "dolphinview.moc"