src/dolphinview.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006 by Peter Penz <peter.penz@gmx.at>                  *
   3  *   Copyright (C) 2006 by Gregor Kališnik <gregor@podnapisi.net>          *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  19  ***************************************************************************/
  20
  21 #include "dolphinview.h"
  22 #include <ktoggleaction.h>
  23 #include <kactioncollection.h>
  24
  25 #include <QApplication>
  26 #include <QClipboard>
  27 #include <QKeyEvent>
  28 #include <QItemSelection>
  29 #include <QBoxLayout>
  30 #include <QTimer>
  31 #include <QScrollBar>
  32
  33 #include <kcolorscheme.h>
  34 #include <kdirlister.h>
  35 #include <kfileitemdelegate.h>
  36 #include <klocale.h>
  37 #include <kiconeffect.h>
  38 #include <kio/deletejob.h>
  39 #include <kio/netaccess.h>
  40 #include <kio/previewjob.h>
  41 #include <kjob.h>
  42 #include <kmenu.h>
  43 #include <kmimetyperesolver.h>
  44 #include <konqmimedata.h>
  45 #include <konq_operations.h>
  46 #include <kurl.h>
  47
  48 #include "dolphindropcontroller.h"
  49 #include "dolphinmodel.h"
  50 #include "dolphincolumnview.h"
  51 #include "dolphincontroller.h"
  52 #include "dolphinsortfilterproxymodel.h"
  53 #include "dolphindetailsview.h"
  54 #include "dolphiniconsview.h"
  55 #include "renamedialog.h"
  56 #include "viewproperties.h"
  57 #include "dolphinsettings.h"
  58 #include "dolphin_generalsettings.h"
  59
  60 DolphinView::DolphinView(QWidget* parent,
  61                          const KUrl& url,
  62                          KDirLister* dirLister,
  63                          DolphinModel* dolphinModel,
  64                          DolphinSortFilterProxyModel* proxyModel,
  65                          KActionCollection* actionCollection) :
  66     QWidget(parent),
  67     m_active(true),
  68     m_showPreview(false),
  69     m_loadingDirectory(false),
  70     m_storedCategorizedSorting(false),
  71     m_mode(DolphinView::IconsView),
  72     m_topLayout(0),
  73     m_controller(0),
  74     m_iconsView(0),
  75     m_detailsView(0),
  76     m_columnView(0),
  77     m_fileItemDelegate(0),
  78     m_selectionModel(0),
  79     m_dolphinModel(dolphinModel),
  80     m_dirLister(dirLister),
  81     m_proxyModel(proxyModel),
  82     m_previewJob(0)
  83 {
  84     setFocusPolicy(Qt::StrongFocus);
  85     m_topLayout = new QVBoxLayout(this);
  86     m_topLayout->setSpacing(0);
  87     m_topLayout->setMargin(0);
  88
  89     QClipboard* clipboard = QApplication::clipboard();
  90     connect(clipboard, SIGNAL(dataChanged()),
  91             this, SLOT(updateCutItems()));
  92
  93     connect(m_dirLister, SIGNAL(completed()),
  94             this, SLOT(updateCutItems()));
  95     connect(m_dirLister, SIGNAL(newItems(const KFileItemList&)),
  96             this, SLOT(generatePreviews(const KFileItemList&)));
  97
  98     m_controller = new DolphinController(this);
  99     m_controller->setUrl(url);
 100
 101     // Receiver of the DolphinView signal 'urlChanged()' don't need
 102     // to care whether the internal controller changed the URL already or whether
 103     // the controller just requested an URL change and will be updated later.
 104     // In both cases the URL has been changed:
 105     connect(m_controller, SIGNAL(urlChanged(const KUrl&)),
 106             this, SIGNAL(urlChanged(const KUrl&)));
 107     connect(m_controller, SIGNAL(requestUrlChange(const KUrl&)),
 108             this, SIGNAL(urlChanged(const KUrl&)));
 109
 110     connect(m_controller, SIGNAL(requestContextMenu(const QPoint&)),
 111             this, SLOT(openContextMenu(const QPoint&)));
 112     connect(m_controller, SIGNAL(urlsDropped(const KUrl::List&, const KUrl&, const KFileItem&)),
 113             this, SLOT(dropUrls(const KUrl::List&, const KUrl&, const KFileItem&)));
 114     connect(m_controller, SIGNAL(sortingChanged(DolphinView::Sorting)),
 115             this, SLOT(updateSorting(DolphinView::Sorting)));
 116     connect(m_controller, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 117             this, SLOT(updateSortOrder(Qt::SortOrder)));
 118     connect(m_controller, SIGNAL(additionalInfoChanged(const KFileItemDelegate::InformationList&)),
 119             this, SLOT(updateAdditionalInfo(const KFileItemDelegate::InformationList&)));
 120     connect(m_controller, SIGNAL(itemTriggered(const KFileItem&)),
 121             this, SLOT(triggerItem(const KFileItem&)));
 122     connect(m_controller, SIGNAL(activated()),
 123             this, SLOT(activate()));
 124     connect(m_controller, SIGNAL(itemEntered(const KFileItem&)),
 125             this, SLOT(showHoverInformation(const KFileItem&)));
 126     connect(m_controller, SIGNAL(viewportEntered()),
 127             this, SLOT(clearHoverInformation()));
 128
 129     applyViewProperties(url);
 130     m_topLayout->addWidget(itemView());
 131
 132     Q_ASSERT(actionCollection != 0);
 133     if (actionCollection->action("create_dir") == 0) {
 134         // This action doesn't appear in the GUI, it's for the shortcut only.
 135         // KNewMenu takes care of the GUI stuff.
 136         KAction* newDirAction = actionCollection->addAction("create_dir");
 137         newDirAction->setText(i18n("Create Folder..."));
 138         connect(newDirAction, SIGNAL(triggered()), SLOT(createDir()));
 139         newDirAction->setShortcut(Qt::Key_F10);
 140     }
 141 }
 142
 143 DolphinView::~DolphinView()
 144 {
 145     if (m_previewJob != 0) {
 146         m_previewJob->kill();
 147         m_previewJob = 0;
 148     }
 149 }
 150
 151 const KUrl& DolphinView::url() const
 152 {
 153     return m_controller->url();
 154 }
 155
 156 KUrl DolphinView::rootUrl() const
 157 {
 158     return isColumnViewActive() ? m_columnView->rootUrl() : url();
 159 }
 160
 161 void DolphinView::setActive(bool active)
 162 {
 163     if (active == m_active) {
 164         return;
 165     }
 166
 167     m_active = active;
 168     m_selectionModel->clearSelection();
 169
 170     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 171     if (active) {
 172         // TODO: emitting urlChanged() is a hack, as the URL hasn't really changed. It
 173         // bypasses the problem when having a split view and changing the active view to
 174         // update the some URL dependent states. A nicer approach should be no big deal...
 175         emit urlChanged(url());
 176         emit selectionChanged(selectedItems());
 177     } else {
 178         color.setAlpha(150);
 179     }
 180
 181     QWidget* viewport = itemView()->viewport();
 182     QPalette palette;
 183     palette.setColor(viewport->backgroundRole(), color);
 184     viewport->setPalette(palette);
 185
 186     update();
 187
 188     if (active) {
 189         emit activated();
 190     }
 191
 192     m_controller->indicateActivationChange(active);
 193 }
 194
 195 bool DolphinView::isActive() const
 196 {
 197     return m_active;
 198 }
 199
 200 void DolphinView::setMode(Mode mode)
 201 {
 202     if (mode == m_mode) {
 203         return; // the wished mode is already set
 204     }
 205
 206     m_mode = mode;
 207
 208     if (isColumnViewActive()) {
 209         // When changing the mode in the column view, it makes sense
 210         // to go back to the root URL of the column view automatically.
 211         // Otherwise there it would not be possible to turn off the column view
 212         // without focusing the first column.
 213         const KUrl root = rootUrl();
 214         setUrl(root);
 215         m_controller->setUrl(root);
 216     }
 217
 218     deleteView();
 219
 220     const KUrl viewPropsUrl = viewPropertiesUrl();
 221     ViewProperties props(viewPropsUrl);
 222     props.setViewMode(m_mode);
 223     createView();
 224
 225     // the file item delegate has been recreated, apply the current
 226     // additional information manually
 227     const KFileItemDelegate::InformationList infoList = props.additionalInfo();
 228     m_fileItemDelegate->setShowInformation(infoList);
 229     emit additionalInfoChanged(infoList);
 230
 231     // Not all view modes support categorized sorting. Adjust the sorting model
 232     // if changing the view mode results in a change of the categorized sorting
 233     // capabilities.
 234     m_storedCategorizedSorting = props.categorizedSorting();
 235     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 236     if (categorized != m_proxyModel->isCategorizedModel()) {
 237         m_proxyModel->setCategorizedModel(categorized);
 238         emit categorizedSortingChanged();
 239     }
 240
 241     emit modeChanged();
 242 }
 243
 244 DolphinView::Mode DolphinView::mode() const
 245 {
 246     return m_mode;
 247 }
 248
 249 void DolphinView::setShowPreview(bool show)
 250 {
 251     if (m_showPreview == show) {
 252         return;
 253     }
 254
 255     const KUrl viewPropsUrl = viewPropertiesUrl();
 256     ViewProperties props(viewPropsUrl);
 257     props.setShowPreview(show);
 258
 259     m_showPreview = show;
 260
 261     emit showPreviewChanged();
 262
 263     loadDirectory(viewPropsUrl, true);
 264 }
 265
 266 bool DolphinView::showPreview() const
 267 {
 268     return m_showPreview;
 269 }
 270
 271 void DolphinView::setShowHiddenFiles(bool show)
 272 {
 273     if (m_dirLister->showingDotFiles() == show) {
 274         return;
 275     }
 276
 277     const KUrl viewPropsUrl = viewPropertiesUrl();
 278     ViewProperties props(viewPropsUrl);
 279     props.setShowHiddenFiles(show);
 280
 281     m_dirLister->setShowingDotFiles(show);
 282     emit showHiddenFilesChanged();
 283
 284     loadDirectory(viewPropsUrl, true);
 285 }
 286
 287 bool DolphinView::showHiddenFiles() const
 288 {
 289     return m_dirLister->showingDotFiles();
 290 }
 291
 292 void DolphinView::setCategorizedSorting(bool categorized)
 293 {
 294     if (categorized == categorizedSorting()) {
 295         return;
 296     }
 297
 298     // setCategorizedSorting(true) may only get invoked
 299     // if the view supports categorized sorting
 300     Q_ASSERT(!categorized || supportsCategorizedSorting());
 301
 302     ViewProperties props(viewPropertiesUrl());
 303     props.setCategorizedSorting(categorized);
 304     props.save();
 305
 306     m_storedCategorizedSorting = categorized;
 307     m_proxyModel->setCategorizedModel(categorized);
 308
 309     emit categorizedSortingChanged();
 310 }
 311
 312 bool DolphinView::categorizedSorting() const
 313 {
 314     // If all view modes would support categorized sorting, returning
 315     // m_proxyModel->isCategorizedModel() would be the way to go. As
 316     // currently only the icons view supports caterized sorting, we remember
 317     // the stored view properties state in m_storedCategorizedSorting and
 318     // return this state. The application takes care to disable the corresponding
 319     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 320     // that this setting is not applied to the current view mode.
 321     return m_storedCategorizedSorting;
 322 }
 323
 324 bool DolphinView::supportsCategorizedSorting() const
 325 {
 326     return m_iconsView != 0;
 327 }
 328
 329 void DolphinView::selectAll()
 330 {
 331     QAbstractItemView* view = itemView();
 332     // TODO: there seems to be a bug in QAbstractItemView::selectAll(); if
 333     // the Ctrl-key is pressed (e. g. for Ctrl+A), selectAll() inverts the
 334     // selection instead of selecting all items. This is bypassed for KDE 4.0
 335     // by invoking clearSelection() first.
 336     view->clearSelection();
 337     view->selectAll();
 338 }
 339
 340 void DolphinView::invertSelection()
 341 {
 342     if (isColumnViewActive()) {
 343         // QAbstractItemView does not offer a virtual method invertSelection()
 344         // as counterpart to QAbstractItemView::selectAll(). This makes it
 345         // necessary to delegate the inverting of the selection to the
 346         // column view, as only the selection of the active column should
 347         // get inverted.
 348         m_columnView->invertSelection();
 349     } else {
 350         QItemSelectionModel* selectionModel = itemView()->selectionModel();
 351         const QAbstractItemModel* itemModel = selectionModel->model();
 352
 353         const QModelIndex topLeft = itemModel->index(0, 0);
 354         const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 355                                                          itemModel->columnCount() - 1);
 356
 357         const QItemSelection selection(topLeft, bottomRight);
 358         selectionModel->select(selection, QItemSelectionModel::Toggle);
 359     }
 360 }
 361
 362 bool DolphinView::hasSelection() const
 363 {
 364     return itemView()->selectionModel()->hasSelection();
 365 }
 366
 367 void DolphinView::clearSelection()
 368 {
 369     itemView()->selectionModel()->clear();
 370 }
 371
 372 KFileItemList DolphinView::selectedItems() const
 373 {
 374     const QAbstractItemView* view = itemView();
 375
 376     // Our view has a selection, we will map them back to the DolphinModel
 377     // and then fill the KFileItemList.
 378     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 379
 380     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 381     KFileItemList itemList;
 382
 383     const QModelIndexList indexList = selection.indexes();
 384     foreach (QModelIndex index, indexList) {
 385         KFileItem item = m_dolphinModel->itemForIndex(index);
 386         if (!item.isNull()) {
 387             itemList.append(item);
 388         }
 389     }
 390
 391     return itemList;
 392 }
 393
 394 KUrl::List DolphinView::selectedUrls() const
 395 {
 396     KUrl::List urls;
 397     const KFileItemList list = selectedItems();
 398     foreach (KFileItem item, list) {
 399         urls.append(item.url());
 400     }
 401     return urls;
 402 }
 403
 404 KFileItem DolphinView::fileItem(const QModelIndex& index) const
 405 {
 406     const QModelIndex dolphinModelIndex = m_proxyModel->mapToSource(index);
 407     return m_dolphinModel->itemForIndex(dolphinModelIndex);
 408 }
 409
 410 void DolphinView::setContentsPosition(int x, int y)
 411 {
 412     QAbstractItemView* view = itemView();
 413
 414     // the ColumnView takes care itself for the horizontal scrolling
 415     if (!isColumnViewActive()) {
 416         view->horizontalScrollBar()->setValue(x);
 417     }
 418     view->verticalScrollBar()->setValue(y);
 419
 420     m_loadingDirectory = false;
 421 }
 422
 423 QPoint DolphinView::contentsPosition() const
 424 {
 425     const int x = itemView()->horizontalScrollBar()->value();
 426     const int y = itemView()->verticalScrollBar()->value();
 427     return QPoint(x, y);
 428 }
 429
 430 void DolphinView::zoomIn()
 431 {
 432     m_controller->triggerZoomIn();
 433 }
 434
 435 void DolphinView::zoomOut()
 436 {
 437     m_controller->triggerZoomOut();
 438 }
 439
 440 bool DolphinView::isZoomInPossible() const
 441 {
 442     return m_controller->isZoomInPossible();
 443 }
 444
 445 bool DolphinView::isZoomOutPossible() const
 446 {
 447     return m_controller->isZoomOutPossible();
 448 }
 449
 450 void DolphinView::setSorting(Sorting sorting)
 451 {
 452     if (sorting != this->sorting()) {
 453         updateSorting(sorting);
 454     }
 455 }
 456
 457 DolphinView::Sorting DolphinView::sorting() const
 458 {
 459     return m_proxyModel->sorting();
 460 }
 461
 462 void DolphinView::setSortOrder(Qt::SortOrder order)
 463 {
 464     if (sortOrder() != order) {
 465         updateSortOrder(order);
 466     }
 467 }
 468
 469 Qt::SortOrder DolphinView::sortOrder() const
 470 {
 471     return m_proxyModel->sortOrder();
 472 }
 473
 474 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 475 {
 476     const KUrl viewPropsUrl = viewPropertiesUrl();
 477     ViewProperties props(viewPropsUrl);
 478     props.setAdditionalInfo(info);
 479     m_fileItemDelegate->setShowInformation(info);
 480
 481     emit additionalInfoChanged(info);
 482
 483     if (itemView() != m_detailsView) {
 484         // the details view requires no reloading of the directory, as it maps
 485         // the file item delegate info to its columns internally
 486         loadDirectory(viewPropsUrl, true);
 487     }
 488 }
 489
 490 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 491 {
 492     return m_fileItemDelegate->showInformation();
 493 }
 494
 495 void DolphinView::reload()
 496 {
 497     setUrl(url());
 498     loadDirectory(url(), true);
 499 }
 500
 501 void DolphinView::refresh()
 502 {
 503     const bool oldActivationState = m_active;
 504     m_active = true;
 505
 506     createView();
 507     applyViewProperties(m_controller->url());
 508     reload();
 509
 510     setActive(oldActivationState);
 511 }
 512
 513 void DolphinView::updateView(const KUrl& url, const KUrl& rootUrl)
 514 {
 515     if (m_controller->url() == url) {
 516         return;
 517     }
 518
 519     m_controller->setUrl(url); // emits urlChanged, which we forward
 520
 521     if (!rootUrl.isEmpty() && rootUrl.isParentOf(url)) {
 522         applyViewProperties(rootUrl);
 523         loadDirectory(rootUrl);
 524         if (itemView() == m_columnView) {
 525             m_columnView->setRootUrl(rootUrl);
 526             m_columnView->showColumn(url);
 527         }
 528     } else {
 529         applyViewProperties(url);
 530         loadDirectory(url);
 531     }
 532
 533     emit startedPathLoading(url);
 534 }
 535
 536 void DolphinView::setNameFilter(const QString& nameFilter)
 537 {
 538     m_proxyModel->setFilterRegExp(nameFilter);
 539
 540     if (isColumnViewActive()) {
 541         // adjusting the directory lister is not enough in the case of the
 542         // column view, as each column has its own directory lister internally...
 543         m_columnView->setNameFilter(nameFilter);
 544     }
 545 }
 546
 547 void DolphinView::calculateItemCount(int& fileCount, int& folderCount)
 548 {
 549     foreach (KFileItem item, m_dirLister->items()) {
 550         if (item.isDir()) {
 551             ++folderCount;
 552         } else {
 553             ++fileCount;
 554         }
 555     }
 556 }
 557
 558 void DolphinView::setUrl(const KUrl& url)
 559 {
 560     updateView(url, KUrl());
 561 }
 562
 563 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 564 {
 565     QWidget::mouseReleaseEvent(event);
 566     setActive(true);
 567 }
 568 void DolphinView::activate()
 569 {
 570     setActive(true);
 571 }
 572
 573 void DolphinView::triggerItem(const KFileItem& item)
 574 {
 575     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 576     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 577         // items are selected by the user, hence don't trigger the
 578         // item specified by 'index'
 579         return;
 580     }
 581
 582     if (item.isNull()) {
 583         return;
 584     }
 585
 586     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 587 }
 588
 589 void DolphinView::generatePreviews(const KFileItemList& items)
 590 {
 591     if (m_controller->dolphinView()->showPreview()) {
 592         if (m_previewJob != 0) {
 593             m_previewJob->kill();
 594             m_previewJob = 0;
 595         }
 596
 597         m_previewJob = KIO::filePreview(items, 128);
 598         connect(m_previewJob, SIGNAL(gotPreview(const KFileItem&, const QPixmap&)),
 599                 this, SLOT(replaceIcon(const KFileItem&, const QPixmap&)));
 600         connect(m_previewJob, SIGNAL(finished(KJob*)),
 601                 this, SLOT(slotPreviewJobFinished(KJob*)));
 602     }
 603 }
 604
 605 void DolphinView::replaceIcon(const KFileItem& item, const QPixmap& pixmap)
 606 {
 607     Q_ASSERT(!item.isNull());
 608     if (!m_showPreview || (item.url().directory() != m_dirLister->url().path())) {
 609         // the preview has been deactivated in the meanwhile or the preview
 610         // job is still working on items of an older URL, hence
 611         // the item is not part of the directory model anymore
 612         return;
 613     }
 614
 615     const QModelIndex idx = m_dolphinModel->indexForItem(item);
 616     if (idx.isValid() && (idx.column() == 0)) {
 617         const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 618         if (KonqMimeData::decodeIsCutSelection(mimeData) && isCutItem(item)) {
 619             KIconEffect iconEffect;
 620             const QPixmap cutPixmap = iconEffect.apply(pixmap, KIconLoader::Desktop, KIconLoader::DisabledState);
 621             m_dolphinModel->setData(idx, QIcon(cutPixmap), Qt::DecorationRole);
 622         } else {
 623             m_dolphinModel->setData(idx, QIcon(pixmap), Qt::DecorationRole);
 624         }
 625     }
 626 }
 627
 628 void DolphinView::emitSelectionChangedSignal()
 629 {
 630     emit selectionChanged(DolphinView::selectedItems());
 631 }
 632
 633 void DolphinView::loadDirectory(const KUrl& url, bool reload)
 634 {
 635     if (!url.isValid()) {
 636         const QString location(url.pathOrUrl());
 637         if (location.isEmpty()) {
 638             emit errorMessage(i18nc("@info:status", "The location is empty."));
 639         } else {
 640             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
 641         }
 642         return;
 643     }
 644
 645     m_cutItemsCache.clear();
 646     m_loadingDirectory = true;
 647
 648     m_dirLister->stop();
 649     m_dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
 650
 651     if (isColumnViewActive()) {
 652         // adjusting the directory lister is not enough in the case of the
 653         // column view, as each column has its own directory lister internally...
 654         if (reload) {
 655             m_columnView->reload();
 656         } else {
 657             m_columnView->showColumn(url);
 658         }
 659     }
 660 }
 661
 662 KUrl DolphinView::viewPropertiesUrl() const
 663 {
 664     if (isColumnViewActive()) {
 665         return m_dirLister->url();
 666     }
 667
 668     return url();
 669 }
 670
 671 void DolphinView::applyViewProperties(const KUrl& url)
 672 {
 673     if (isColumnViewActive() && rootUrl().isParentOf(url)) {
 674         // The column view is active, hence don't apply the view properties
 675         // of sub directories (represented by columns) to the view. The
 676         // view always represents the properties of the first column.
 677         return;
 678     }
 679
 680     const ViewProperties props(url);
 681
 682     const Mode mode = props.viewMode();
 683     if (m_mode != mode) {
 684         m_mode = mode;
 685         createView();
 686         emit modeChanged();
 687     }
 688     if (itemView() == 0) {
 689         createView();
 690     }
 691     Q_ASSERT(itemView() != 0);
 692     Q_ASSERT(m_fileItemDelegate != 0);
 693
 694     const bool showHiddenFiles = props.showHiddenFiles();
 695     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
 696         m_dirLister->setShowingDotFiles(showHiddenFiles);
 697         emit showHiddenFilesChanged();
 698     }
 699
 700     m_storedCategorizedSorting = props.categorizedSorting();
 701     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 702     if (categorized != m_proxyModel->isCategorizedModel()) {
 703         m_proxyModel->setCategorizedModel(categorized);
 704         emit categorizedSortingChanged();
 705     }
 706
 707     const DolphinView::Sorting sorting = props.sorting();
 708     if (sorting != m_proxyModel->sorting()) {
 709         m_proxyModel->setSorting(sorting);
 710         emit sortingChanged(sorting);
 711     }
 712
 713     const Qt::SortOrder sortOrder = props.sortOrder();
 714     if (sortOrder != m_proxyModel->sortOrder()) {
 715         m_proxyModel->setSortOrder(sortOrder);
 716         emit sortOrderChanged(sortOrder);
 717     }
 718
 719     KFileItemDelegate::InformationList info = props.additionalInfo();
 720     if (info != m_fileItemDelegate->showInformation()) {
 721         m_fileItemDelegate->setShowInformation(info);
 722         emit additionalInfoChanged(info);
 723     }
 724
 725     const bool showPreview = props.showPreview();
 726     if (showPreview != m_showPreview) {
 727         m_showPreview = showPreview;
 728         emit showPreviewChanged();
 729     }
 730 }
 731
 732 void DolphinView::changeSelection(const KFileItemList& selection)
 733 {
 734     clearSelection();
 735     if (selection.isEmpty()) {
 736         return;
 737     }
 738     const KUrl& baseUrl = url();
 739     KUrl url;
 740     QItemSelection new_selection;
 741     foreach(const KFileItem& item, selection) {
 742         url = item.url().upUrl();
 743         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 744             QModelIndex index = m_proxyModel->mapFromSource(m_dolphinModel->indexForItem(item));
 745             new_selection.select(index, index);
 746         }
 747     }
 748     itemView()->selectionModel()->select(new_selection,
 749                                          QItemSelectionModel::ClearAndSelect
 750                                          | QItemSelectionModel::Current);
 751 }
 752
 753 void DolphinView::openContextMenu(const QPoint& pos)
 754 {
 755     KFileItem item;
 756
 757     const QModelIndex index = itemView()->indexAt(pos);
 758     if (index.isValid() && (index.column() == DolphinModel::Name)) {
 759         item = fileItem(index);
 760     }
 761
 762     emit requestContextMenu(item, url());
 763 }
 764
 765 void DolphinView::dropUrls(const KUrl::List& urls,
 766                            const KUrl& destPath,
 767                            const KFileItem& destItem)
 768 {
 769     Q_ASSERT(!urls.isEmpty());
 770     const KUrl& destination = !destItem.isNull() && destItem.isDir() ?
 771                               destItem.url() : destPath;
 772     const KUrl sourceDir = KUrl(urls.first().directory());
 773     if (sourceDir != destination) {
 774         dropUrls(urls, destination);
 775     }
 776 }
 777
 778 void DolphinView::dropUrls(const KUrl::List& urls,
 779                            const KUrl& destination)
 780 {
 781     DolphinDropController dropController(this);
 782     // forward doingOperation signal up to the mainwindow
 783     connect(&dropController, SIGNAL(doingOperation(KonqFileUndoManager::CommandType)),
 784             this, SIGNAL(doingOperation(KonqFileUndoManager::CommandType)));
 785     dropController.dropUrls(urls, destination);
 786 }
 787
 788 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 789 {
 790     ViewProperties props(viewPropertiesUrl());
 791     props.setSorting(sorting);
 792
 793     m_proxyModel->setSorting(sorting);
 794
 795     emit sortingChanged(sorting);
 796 }
 797
 798 void DolphinView::updateSortOrder(Qt::SortOrder order)
 799 {
 800     ViewProperties props(viewPropertiesUrl());
 801     props.setSortOrder(order);
 802
 803     m_proxyModel->setSortOrder(order);
 804
 805     emit sortOrderChanged(order);
 806 }
 807
 808 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 809 {
 810     ViewProperties props(viewPropertiesUrl());
 811     props.setAdditionalInfo(info);
 812     props.save();
 813
 814     m_fileItemDelegate->setShowInformation(info);
 815
 816     emit additionalInfoChanged(info);
 817
 818 }
 819
 820 void DolphinView::emitContentsMoved()
 821 {
 822     // only emit the contents moved signal if:
 823     // - no directory loading is ongoing (this would reset the contents position
 824     //   always to (0, 0))
 825     // - if the Column View is active: the column view does an automatic
 826     //   positioning during the loading operation, which must be remembered
 827     if (!m_loadingDirectory || isColumnViewActive()) {
 828         const QPoint pos(contentsPosition());
 829         emit contentsMoved(pos.x(), pos.y());
 830     }
 831 }
 832
 833 void DolphinView::updateCutItems()
 834 {
 835     // restore the icons of all previously selected items to the
 836     // original state...
 837     QList<CutItem>::const_iterator it = m_cutItemsCache.begin();
 838     QList<CutItem>::const_iterator end = m_cutItemsCache.end();
 839     while (it != end) {
 840         const QModelIndex index = m_dolphinModel->indexForUrl((*it).url);
 841         if (index.isValid()) {
 842             m_dolphinModel->setData(index, QIcon((*it).pixmap), Qt::DecorationRole);
 843         }
 844         ++it;
 845     }
 846     m_cutItemsCache.clear();
 847
 848     // ... and apply an item effect to all currently cut items
 849     applyCutItemEffect();
 850 }
 851
 852 void DolphinView::showHoverInformation(const KFileItem& item)
 853 {
 854     if (hasSelection() || !m_active) {
 855         return;
 856     }
 857
 858     emit requestItemInfo(item);
 859 }
 860
 861 void DolphinView::clearHoverInformation()
 862 {
 863     if (m_active) {
 864         emit requestItemInfo(KFileItem());
 865     }
 866 }
 867
 868
 869 void DolphinView::createView()
 870 {
 871     deleteView();
 872     Q_ASSERT(m_iconsView == 0);
 873     Q_ASSERT(m_detailsView == 0);
 874     Q_ASSERT(m_columnView == 0);
 875
 876     QAbstractItemView* view = 0;
 877     switch (m_mode) {
 878     case IconsView: {
 879         m_iconsView = new DolphinIconsView(this, m_controller);
 880         view = m_iconsView;
 881         break;
 882     }
 883
 884     case DetailsView:
 885         m_detailsView = new DolphinDetailsView(this, m_controller);
 886         view = m_detailsView;
 887         break;
 888
 889     case ColumnView:
 890         m_columnView = new DolphinColumnView(this, m_controller);
 891         view = m_columnView;
 892         break;
 893     }
 894
 895     Q_ASSERT(view != 0);
 896
 897     m_fileItemDelegate = new KFileItemDelegate(view);
 898     view->setItemDelegate(m_fileItemDelegate);
 899
 900     view->setModel(m_proxyModel);
 901     if (m_selectionModel != 0) {
 902         view->setSelectionModel(m_selectionModel);
 903     } else {
 904         m_selectionModel = view->selectionModel();
 905     }
 906
 907     // reparent the selection model, as it should not be deleted
 908     // when deleting the model
 909     m_selectionModel->setParent(this);
 910
 911     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
 912
 913     new KMimeTypeResolver(view, m_dolphinModel);
 914     m_topLayout->insertWidget(1, view);
 915
 916     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
 917             this, SLOT(emitSelectionChangedSignal()));
 918     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
 919             this, SLOT(emitContentsMoved()));
 920     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
 921             this, SLOT(emitContentsMoved()));
 922 }
 923
 924 void DolphinView::deleteView()
 925 {
 926     QAbstractItemView* view = itemView();
 927     if (view != 0) {
 928         m_topLayout->removeWidget(view);
 929         view->close();
 930         view->deleteLater();
 931         view = 0;
 932         m_iconsView = 0;
 933         m_detailsView = 0;
 934         m_columnView = 0;
 935         m_fileItemDelegate = 0;
 936     }
 937 }
 938
 939 QAbstractItemView* DolphinView::itemView() const
 940 {
 941     if (m_detailsView != 0) {
 942         return m_detailsView;
 943     } else if (m_columnView != 0) {
 944         return m_columnView;
 945     }
 946
 947     return m_iconsView;
 948 }
 949
 950 bool DolphinView::isCutItem(const KFileItem& item) const
 951 {
 952     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 953     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
 954
 955     const KUrl& itemUrl = item.url();
 956     KUrl::List::const_iterator it = cutUrls.begin();
 957     const KUrl::List::const_iterator end = cutUrls.end();
 958     while (it != end) {
 959         if (*it == itemUrl) {
 960             return true;
 961         }
 962         ++it;
 963     }
 964
 965     return false;
 966 }
 967
 968 void DolphinView::applyCutItemEffect()
 969 {
 970     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 971     if (!KonqMimeData::decodeIsCutSelection(mimeData)) {
 972         return;
 973     }
 974
 975     KFileItemList items(m_dirLister->items());
 976     KFileItemList::const_iterator it = items.begin();
 977     const KFileItemList::const_iterator end = items.end();
 978     while (it != end) {
 979         const KFileItem item = *it;
 980         if (isCutItem(item)) {
 981             const QModelIndex index = m_dolphinModel->indexForItem(item);
 982             const QVariant value = m_dolphinModel->data(index, Qt::DecorationRole);
 983             if (value.type() == QVariant::Icon) {
 984                 const QIcon icon(qvariant_cast<QIcon>(value));
 985                 QPixmap pixmap = icon.pixmap(128, 128);
 986
 987                 // remember current pixmap for the item to be able
 988                 // to restore it when other items get cut
 989                 CutItem cutItem;
 990                 cutItem.url = item.url();
 991                 cutItem.pixmap = pixmap;
 992                 m_cutItemsCache.append(cutItem);
 993
 994                 // apply icon effect to the cut item
 995                 KIconEffect iconEffect;
 996                 pixmap = iconEffect.apply(pixmap, KIconLoader::Desktop, KIconLoader::DisabledState);
 997                 m_dolphinModel->setData(index, QIcon(pixmap), Qt::DecorationRole);
 998             }
 999         }
1000         ++it;
1001     }
1002 }
1003
1004 KToggleAction* DolphinView::iconsModeAction(KActionCollection* actionCollection)
1005 {
1006     KToggleAction* iconsView = actionCollection->add<KToggleAction>("icons");
1007     iconsView->setText(i18nc("@action:inmenu View Mode", "Icons"));
1008     iconsView->setShortcut(Qt::CTRL | Qt::Key_1);
1009     iconsView->setIcon(KIcon("view-list-icons"));
1010     iconsView->setData(QVariant::fromValue(IconsView));
1011     return iconsView;
1012 }
1013
1014 KToggleAction* DolphinView::detailsModeAction(KActionCollection* actionCollection)
1015 {
1016     KToggleAction* detailsView = actionCollection->add<KToggleAction>("details");
1017     detailsView->setText(i18nc("@action:inmenu View Mode", "Details"));
1018     detailsView->setShortcut(Qt::CTRL | Qt::Key_2);
1019     detailsView->setIcon(KIcon("view-list-details"));
1020     detailsView->setData(QVariant::fromValue(DetailsView));
1021     return detailsView;
1022 }
1023
1024 KToggleAction* DolphinView::columnsModeAction(KActionCollection* actionCollection)
1025 {
1026     KToggleAction* columnView = actionCollection->add<KToggleAction>("columns");
1027     columnView->setText(i18nc("@action:inmenu View Mode", "Columns"));
1028     columnView->setShortcut(Qt::CTRL | Qt::Key_3);
1029     columnView->setIcon(KIcon("view-file-columns"));
1030     columnView->setData(QVariant::fromValue(ColumnView));
1031     return columnView;
1032 }
1033
1034 QString DolphinView::currentViewModeActionName() const
1035 {
1036     switch (m_mode) {
1037     case DolphinView::IconsView:
1038         return "icons";
1039     case DolphinView::DetailsView:
1040         return "details";
1041     case DolphinView::ColumnView:
1042         return "columns";
1043     }
1044     return QString(); // can't happen
1045 }
1046
1047 void DolphinView::renameSelectedItems()
1048 {
1049     const KFileItemList items = selectedItems();
1050     if (items.count() > 1) {
1051         // More than one item has been selected for renaming. Open
1052         // a rename dialog and rename all items afterwards.
1053         RenameDialog dialog(this, items);
1054         if (dialog.exec() == QDialog::Rejected) {
1055             return;
1056         }
1057
1058         const QString newName = dialog.newName();
1059         if (newName.isEmpty()) {
1060             emit errorMessage(dialog.errorString());
1061         } else {
1062             // TODO: check how this can be integrated into KonqFileUndoManager/KonqOperations
1063             // as one operation instead of n rename operations like it is done now...
1064             Q_ASSERT(newName.contains('#'));
1065
1066             // iterate through all selected items and rename them...
1067             const int replaceIndex = newName.indexOf('#');
1068             Q_ASSERT(replaceIndex >= 0);
1069             int index = 1;
1070
1071             KFileItemList::const_iterator it = items.begin();
1072             const KFileItemList::const_iterator end = items.end();
1073             while (it != end) {
1074                 const KUrl& oldUrl = (*it).url();
1075                 QString number;
1076                 number.setNum(index++);
1077
1078                 QString name(newName);
1079                 name.replace(replaceIndex, 1, number);
1080
1081                 if (oldUrl.fileName() != name) {
1082                     KUrl newUrl = oldUrl;
1083                     newUrl.setFileName(name);
1084                     KonqOperations::rename(this, oldUrl, newUrl);
1085                     emit doingOperation(KonqFileUndoManager::RENAME);
1086                 }
1087                 ++it;
1088             }
1089         }
1090     } else {
1091         // Only one item has been selected for renaming. Use the custom
1092         // renaming mechanism from the views.
1093         Q_ASSERT(items.count() == 1);
1094
1095         // TODO: Think about using KFileItemDelegate as soon as it supports editing.
1096         // Currently the RenameDialog is used, but I'm not sure whether inline renaming
1097         // is a benefit for the user at all -> let's wait for some input first...
1098         RenameDialog dialog(this, items);
1099         if (dialog.exec() == QDialog::Rejected) {
1100             return;
1101         }
1102
1103         const QString& newName = dialog.newName();
1104         if (newName.isEmpty()) {
1105             emit errorMessage(dialog.errorString());
1106         } else {
1107             const KUrl& oldUrl = items.first().url();
1108             KUrl newUrl = oldUrl;
1109             newUrl.setFileName(newName);
1110             KonqOperations::rename(this, oldUrl, newUrl);
1111             emit doingOperation(KonqFileUndoManager::RENAME);
1112         }
1113     }
1114 }
1115
1116 void DolphinView::trashSelectedItems()
1117 {
1118     emit doingOperation(KonqFileUndoManager::TRASH);
1119     KonqOperations::del(this, KonqOperations::TRASH, selectedUrls());
1120 }
1121
1122 void DolphinView::deleteSelectedItems()
1123 {
1124     const KUrl::List list = selectedUrls();
1125     const bool del = KonqOperations::askDeleteConfirmation(list,
1126                      KonqOperations::DEL,
1127                      KonqOperations::DEFAULT_CONFIRMATION,
1128                      this);
1129
1130     if (del) {
1131         KIO::Job* job = KIO::del(list);
1132         connect(job, SIGNAL(result(KJob*)),
1133                 this, SLOT(slotDeleteFileFinished(KJob*)));
1134     }
1135 }
1136
1137 void DolphinView::slotDeleteFileFinished(KJob* job)
1138 {
1139     if (job->error() == 0) {
1140         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1141     } else {
1142         emit errorMessage(job->errorString());
1143     }
1144 }
1145
1146 void DolphinView::slotPreviewJobFinished(KJob* job)
1147 {
1148     Q_ASSERT(job == m_previewJob);
1149     m_previewJob = 0;
1150 }
1151
1152 void DolphinView::createDir()
1153 {
1154     KonqOperations::newDir(this, url());
1155 }
1156
1157 void DolphinView::cutSelectedItems()
1158 {
1159     QMimeData* mimeData = new QMimeData();
1160     const KUrl::List kdeUrls = selectedUrls();
1161     const KUrl::List mostLocalUrls;
1162     KonqMimeData::populateMimeData(mimeData, kdeUrls, mostLocalUrls, true);
1163     QApplication::clipboard()->setMimeData(mimeData);
1164 }
1165
1166 void DolphinView::copySelectedItems()
1167 {
1168     QMimeData* mimeData = new QMimeData();
1169     const KUrl::List kdeUrls = selectedUrls();
1170     const KUrl::List mostLocalUrls;
1171     KonqMimeData::populateMimeData(mimeData, kdeUrls, mostLocalUrls, false);
1172     QApplication::clipboard()->setMimeData(mimeData);
1173 }
1174
1175 void DolphinView::paste()
1176 {
1177     QClipboard* clipboard = QApplication::clipboard();
1178     const QMimeData* mimeData = clipboard->mimeData();
1179
1180     const KUrl::List sourceUrls = KUrl::List::fromMimeData(mimeData);
1181
1182     // per default the pasting is done into the current Url of the view
1183     KUrl destUrl(url());
1184
1185     // check whether the pasting should be done into a selected directory
1186     const KUrl::List selectedUrls = this->selectedUrls();
1187     if (selectedUrls.count() == 1) {
1188         const KFileItem fileItem(S_IFDIR,
1189                                  KFileItem::Unknown,
1190                                  selectedUrls.first(),
1191                                  true);
1192         if (fileItem.isDir()) {
1193             // only one item is selected which is a directory, hence paste
1194             // into this directory
1195             destUrl = selectedUrls.first();
1196         }
1197     }
1198
1199     if (KonqMimeData::decodeIsCutSelection(mimeData)) {
1200         KonqOperations::copy(this, KonqOperations::MOVE, sourceUrls, destUrl);
1201         emit doingOperation(KonqFileUndoManager::MOVE);
1202         clipboard->clear();
1203     } else {
1204         KonqOperations::copy(this, KonqOperations::COPY, sourceUrls, destUrl);
1205         emit doingOperation(KonqFileUndoManager::COPY);
1206     }
1207 }
1208
1209 QPair<bool, QString> DolphinView::pasteInfo() const
1210 {
1211     QPair<bool, QString> ret;
1212     QClipboard* clipboard = QApplication::clipboard();
1213     const QMimeData* mimeData = clipboard->mimeData();
1214
1215     KUrl::List urls = KUrl::List::fromMimeData(mimeData);
1216     if (!urls.isEmpty()) {
1217         ret.first = true;
1218         ret.second = i18ncp("@action:inmenu", "Paste One File", "Paste %1 Files", urls.count());
1219     } else {
1220         ret.first = false;
1221         ret.second = i18nc("@action:inmenu", "Paste");
1222     }
1223
1224     if (ret.first) {
1225         const KFileItemList items = selectedItems();
1226         const uint count = items.count();
1227         if (count > 1) {
1228             // pasting should not be allowed when more than one file
1229             // is selected
1230             ret.first = false;
1231         } else if (count == 1) {
1232             // Only one file is selected. Pasting is only allowed if this
1233             // file is a directory.
1234             ret.first = items.first().isDir();
1235         }
1236     }
1237     return ret;
1238 }
1239
1240 KAction* DolphinView::createRenameAction(KActionCollection* collection)
1241 {
1242     KAction* rename = collection->addAction("rename");
1243     rename->setText(i18nc("@action:inmenu File", "Rename..."));
1244     rename->setShortcut(Qt::Key_F2);
1245     return rename;
1246 }
1247
1248 KAction* DolphinView::createMoveToTrashAction(KActionCollection* collection)
1249 {
1250     KAction* moveToTrash = collection->addAction("move_to_trash");
1251     moveToTrash->setText(i18nc("@action:inmenu File", "Move to Trash"));
1252     moveToTrash->setIcon(KIcon("user-trash"));
1253     moveToTrash->setShortcut(QKeySequence::Delete);
1254     return moveToTrash;
1255 }
1256
1257 KAction* DolphinView::createDeleteAction(KActionCollection* collection)
1258 {
1259     KAction* deleteAction = collection->addAction("delete");
1260     deleteAction->setIcon(KIcon("edit-delete"));
1261     deleteAction->setText(i18nc("@action:inmenu File", "Delete"));
1262     deleteAction->setShortcut(Qt::SHIFT | Qt::Key_Delete);
1263     return deleteAction;
1264 }
1265
1266 #include "dolphinview.moc"