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
  23 #include <QApplication>
  24 #include <QClipboard>
  25 #include <QKeyEvent>
  26 #include <QItemSelection>
  27 #include <QBoxLayout>
  28 #include <QTimer>
  29 #include <QScrollBar>
  30
  31 #include <kcolorscheme.h>
  32 #include <kdirlister.h>
  33 #include <kfileitemdelegate.h>
  34 #include <klocale.h>
  35 #include <kiconeffect.h>
  36 #include <kio/netaccess.h>
  37 #include <kio/renamedialog.h>
  38 #include <kio/previewjob.h>
  39 #include <kmimetyperesolver.h>
  40 #include <konqmimedata.h>
  41 #include <konq_operations.h>
  42 #include <kurl.h>
  43
  44 #include "dolphinmodel.h"
  45 #include "dolphincolumnview.h"
  46 #include "dolphincontroller.h"
  47 #include "dolphinsortfilterproxymodel.h"
  48 #include "dolphindetailsview.h"
  49 #include "dolphiniconsview.h"
  50 #include "renamedialog.h"
  51 #include "viewproperties.h"
  52 #include "dolphinsettings.h"
  53 #include "dolphin_generalsettings.h"
  54
  55 DolphinView::DolphinView(QWidget* parent,
  56                          const KUrl& url,
  57                          KDirLister* dirLister,
  58                          DolphinModel* dolphinModel,
  59                          DolphinSortFilterProxyModel* proxyModel) :
  60     QWidget(parent),
  61     m_active(true),
  62     m_loadingDirectory(false),
  63     m_storedCategorizedSorting(false),
  64     m_mode(DolphinView::IconsView),
  65     m_topLayout(0),
  66     m_controller(0),
  67     m_iconsView(0),
  68     m_detailsView(0),
  69     m_columnView(0),
  70     m_fileItemDelegate(0),
  71     m_dolphinModel(dolphinModel),
  72     m_dirLister(dirLister),
  73     m_proxyModel(proxyModel)
  74 {
  75     setFocusPolicy(Qt::StrongFocus);
  76     m_topLayout = new QVBoxLayout(this);
  77     m_topLayout->setSpacing(0);
  78     m_topLayout->setMargin(0);
  79
  80     QClipboard* clipboard = QApplication::clipboard();
  81     connect(clipboard, SIGNAL(dataChanged()),
  82             this, SLOT(updateCutItems()));
  83
  84     connect(m_dirLister, SIGNAL(completed()),
  85             this, SLOT(updateCutItems()));
  86     connect(m_dirLister, SIGNAL(newItems(const KFileItemList&)),
  87             this, SLOT(generatePreviews(const KFileItemList&)));
  88
  89     m_controller = new DolphinController(this);
  90     m_controller->setUrl(url);
  91     connect(m_controller, SIGNAL(urlChanged(const KUrl&)),
  92             this, SIGNAL(urlChanged(const KUrl&)));
  93     connect(m_controller, SIGNAL(requestContextMenu(const QPoint&)),
  94             this, SLOT(openContextMenu(const QPoint&)));
  95     connect(m_controller, SIGNAL(urlsDropped(const KUrl::List&, const KUrl&, const QModelIndex&, QWidget*)),
  96             this, SLOT(dropUrls(const KUrl::List&, const KUrl&, const QModelIndex&, QWidget*)));
  97     connect(m_controller, SIGNAL(sortingChanged(DolphinView::Sorting)),
  98             this, SLOT(updateSorting(DolphinView::Sorting)));
  99     connect(m_controller, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 100             this, SLOT(updateSortOrder(Qt::SortOrder)));
 101     connect(m_controller, SIGNAL(itemTriggered(const KFileItem&)),
 102             this, SLOT(triggerItem(const KFileItem&)));
 103     connect(m_controller, SIGNAL(activated()),
 104             this, SLOT(activate()));
 105     connect(m_controller, SIGNAL(itemEntered(const KFileItem&)),
 106             this, SLOT(showHoverInformation(const KFileItem&)));
 107     connect(m_controller, SIGNAL(viewportEntered()),
 108             this, SLOT(clearHoverInformation()));
 109
 110     applyViewProperties(url);
 111     m_topLayout->addWidget(itemView());
 112 }
 113
 114 DolphinView::~DolphinView()
 115 {
 116 }
 117
 118 const KUrl& DolphinView::url() const
 119 {
 120     return m_controller->url();
 121 }
 122
 123 KUrl DolphinView::rootUrl() const
 124 {
 125     return isColumnViewActive() ? m_columnView->rootUrl() : url();
 126 }
 127
 128 void DolphinView::setActive(bool active)
 129 {
 130     if (active == m_active) {
 131         return;
 132     }
 133
 134     m_active = active;
 135
 136     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 137     if (active) {
 138         // TODO: emitting urlChanged() is a hack, as the URL hasn't really changed. It
 139         // bypasses the problem when having a split view and changing the active view to
 140         // update the some URL dependent states. A nicer approach should be no big deal...
 141         emit urlChanged(url());
 142         emit selectionChanged(selectedItems());
 143     } else {
 144         color.setAlpha(150);
 145     }
 146
 147     QWidget* viewport = itemView()->viewport();
 148     QPalette palette;
 149     palette.setColor(viewport->backgroundRole(), color);
 150     viewport->setPalette(palette);
 151
 152     update();
 153
 154     if (active) {
 155         emit activated();
 156     }
 157
 158     m_controller->indicateActivationChange(active);
 159 }
 160
 161 bool DolphinView::isActive() const
 162 {
 163     return m_active;
 164 }
 165
 166 void DolphinView::setMode(Mode mode)
 167 {
 168     if (mode == m_mode) {
 169         return; // the wished mode is already set
 170     }
 171
 172     m_mode = mode;
 173
 174     if (isColumnViewActive()) {
 175         // When changing the mode in the column view, it makes sense
 176         // to go back to the root URL of the column view automatically.
 177         // Otherwise there it would not be possible to turn off the column view
 178         // without focusing the first column.
 179         const KUrl root = rootUrl();
 180         setUrl(root);
 181         m_controller->setUrl(root);
 182     }
 183
 184     const KUrl viewPropsUrl = viewPropertiesUrl();
 185     ViewProperties props(viewPropsUrl);
 186     props.setViewMode(m_mode);
 187
 188     createView();
 189
 190     // Not all view modes support categorized sorting. Adjust the sorting model
 191     // if changing the view mode results in a change of the categorized sorting
 192     // capabilities.
 193     m_storedCategorizedSorting = props.categorizedSorting();
 194     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 195     if (categorized != m_proxyModel->isCategorizedModel()) {
 196         m_proxyModel->setCategorizedModel(categorized);
 197         m_proxyModel->sort(m_proxyModel->sortColumn(), m_proxyModel->sortOrder());
 198         emit categorizedSortingChanged();
 199     }
 200
 201     loadDirectory(viewPropsUrl);
 202
 203     emit modeChanged();
 204 }
 205
 206 DolphinView::Mode DolphinView::mode() const
 207 {
 208     return m_mode;
 209 }
 210
 211 void DolphinView::setShowPreview(bool show)
 212 {
 213     const KUrl viewPropsUrl = viewPropertiesUrl();
 214     ViewProperties props(viewPropsUrl);
 215     props.setShowPreview(show);
 216
 217     m_controller->setShowPreview(show);
 218     emit showPreviewChanged();
 219
 220     loadDirectory(viewPropsUrl, true);
 221 }
 222
 223 bool DolphinView::showPreview() const
 224 {
 225     return m_controller->showPreview();
 226 }
 227
 228 void DolphinView::setShowHiddenFiles(bool show)
 229 {
 230     if (m_dirLister->showingDotFiles() == show) {
 231         return;
 232     }
 233
 234     const KUrl viewPropsUrl = viewPropertiesUrl();
 235     ViewProperties props(viewPropsUrl);
 236     props.setShowHiddenFiles(show);
 237
 238     m_dirLister->setShowingDotFiles(show);
 239     m_controller->setShowHiddenFiles(show);
 240     emit showHiddenFilesChanged();
 241
 242     loadDirectory(viewPropsUrl, true);
 243 }
 244
 245 bool DolphinView::showHiddenFiles() const
 246 {
 247     return m_dirLister->showingDotFiles();
 248 }
 249
 250 void DolphinView::setCategorizedSorting(bool categorized)
 251 {
 252     if (categorized == categorizedSorting()) {
 253         return;
 254     }
 255
 256     // setCategorizedSorting(true) may only get invoked
 257     // if the view supports categorized sorting
 258     Q_ASSERT(!categorized || supportsCategorizedSorting());
 259
 260     ViewProperties props(viewPropertiesUrl());
 261     props.setCategorizedSorting(categorized);
 262     props.save();
 263
 264     m_storedCategorizedSorting = categorized;
 265     m_proxyModel->setCategorizedModel(categorized);
 266     m_proxyModel->sort(m_proxyModel->sortColumn(), m_proxyModel->sortOrder());
 267
 268     emit categorizedSortingChanged();
 269 }
 270
 271 bool DolphinView::categorizedSorting() const
 272 {
 273     // If all view modes would support categorized sorting, returning
 274     // m_proxyModel->isCategorizedModel() would be the way to go. As
 275     // currently only the icons view supports caterized sorting, we remember
 276     // the stored view properties state in m_storedCategorizedSorting and
 277     // return this state. The application takes care to disable the corresponding
 278     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 279     // that this setting is not applied to the current view mode.
 280     return m_storedCategorizedSorting;
 281 }
 282
 283 bool DolphinView::supportsCategorizedSorting() const
 284 {
 285     return m_iconsView != 0;
 286 }
 287
 288 void DolphinView::selectAll()
 289 {
 290     itemView()->selectAll();
 291 }
 292
 293 void DolphinView::invertSelection()
 294 {
 295     if (isColumnViewActive()) {
 296         // QAbstractItemView does not offer a virtual method invertSelection()
 297         // as counterpart to QAbstractItemView::selectAll(). This makes it
 298         // necessary to delegate the inverting of the selection to the
 299         // column view, as only the selection of the active column should
 300         // get inverted.
 301         m_columnView->invertSelection();
 302     } else {
 303         QItemSelectionModel* selectionModel = itemView()->selectionModel();
 304         const QAbstractItemModel* itemModel = selectionModel->model();
 305
 306         const QModelIndex topLeft = itemModel->index(0, 0);
 307         const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 308                                                          itemModel->columnCount() - 1);
 309
 310         const QItemSelection selection(topLeft, bottomRight);
 311         selectionModel->select(selection, QItemSelectionModel::Toggle);
 312     }
 313 }
 314
 315 bool DolphinView::hasSelection() const
 316 {
 317     return itemView()->selectionModel()->hasSelection();
 318 }
 319
 320 void DolphinView::clearSelection()
 321 {
 322     itemView()->selectionModel()->clear();
 323 }
 324
 325 KFileItemList DolphinView::selectedItems() const
 326 {
 327     const QAbstractItemView* view = itemView();
 328
 329     // Our view has a selection, we will map them back to the DolphinModel
 330     // and then fill the KFileItemList.
 331     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 332
 333     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 334     KFileItemList itemList;
 335
 336     const QModelIndexList indexList = selection.indexes();
 337     foreach (QModelIndex index, indexList) {
 338         KFileItem item = m_dolphinModel->itemForIndex(index);
 339         if (!item.isNull()) {
 340             itemList.append(item);
 341         }
 342     }
 343
 344     return itemList;
 345 }
 346
 347 KUrl::List DolphinView::selectedUrls() const
 348 {
 349     KUrl::List urls;
 350     const KFileItemList list = selectedItems();
 351     foreach (KFileItem item, list) {
 352         urls.append(item.url());
 353     }
 354     return urls;
 355 }
 356
 357 KFileItem DolphinView::fileItem(const QModelIndex& index) const
 358 {
 359     const QModelIndex dolphinModelIndex = m_proxyModel->mapToSource(index);
 360     return m_dolphinModel->itemForIndex(dolphinModelIndex);
 361 }
 362
 363 void DolphinView::setContentsPosition(int x, int y)
 364 {
 365     QAbstractItemView* view = itemView();
 366
 367     // the ColumnView takes care itself for the horizontal scrolling
 368     if (!isColumnViewActive()) {
 369         view->horizontalScrollBar()->setValue(x);
 370     }
 371     view->verticalScrollBar()->setValue(y);
 372
 373     m_loadingDirectory = false;
 374 }
 375
 376 QPoint DolphinView::contentsPosition() const
 377 {
 378     const int x = itemView()->horizontalScrollBar()->value();
 379     const int y = itemView()->verticalScrollBar()->value();
 380     return QPoint(x, y);
 381 }
 382
 383 void DolphinView::zoomIn()
 384 {
 385     m_controller->triggerZoomIn();
 386 }
 387
 388 void DolphinView::zoomOut()
 389 {
 390     m_controller->triggerZoomOut();
 391 }
 392
 393 bool DolphinView::isZoomInPossible() const
 394 {
 395     return m_controller->isZoomInPossible();
 396 }
 397
 398 bool DolphinView::isZoomOutPossible() const
 399 {
 400     return m_controller->isZoomOutPossible();
 401 }
 402
 403 void DolphinView::setSorting(Sorting sorting)
 404 {
 405     if (sorting != this->sorting()) {
 406         updateSorting(sorting);
 407     }
 408 }
 409
 410 DolphinView::Sorting DolphinView::sorting() const
 411 {
 412     return m_proxyModel->sorting();
 413 }
 414
 415 void DolphinView::setSortOrder(Qt::SortOrder order)
 416 {
 417     if (sortOrder() != order) {
 418         updateSortOrder(order);
 419     }
 420 }
 421
 422 Qt::SortOrder DolphinView::sortOrder() const
 423 {
 424     return m_proxyModel->sortOrder();
 425 }
 426
 427 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 428 {
 429     const KUrl viewPropsUrl = viewPropertiesUrl();
 430     ViewProperties props(viewPropsUrl);
 431     props.setAdditionalInfo(info);
 432
 433     m_controller->setAdditionalInfoCount(info.count());
 434     m_fileItemDelegate->setShowInformation(info);
 435
 436     emit additionalInfoChanged(info);
 437     loadDirectory(viewPropsUrl, true);
 438 }
 439
 440 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 441 {
 442     return m_fileItemDelegate->showInformation();
 443 }
 444
 445 void DolphinView::reload()
 446 {
 447     setUrl(url());
 448     loadDirectory(url(), true);
 449 }
 450
 451 void DolphinView::refresh()
 452 {
 453     const bool oldActivationState = m_active;
 454     m_active = true;
 455
 456     createView();
 457     applyViewProperties(m_controller->url());
 458     reload();
 459
 460     setActive(oldActivationState);
 461 }
 462
 463 void DolphinView::updateView(const KUrl& url, const KUrl& rootUrl)
 464 {
 465     if (m_controller->url() == url) {
 466         return;
 467     }
 468
 469     const bool restoreColumnView =  !rootUrl.isEmpty()
 470                                     && !rootUrl.equals(url, KUrl::CompareWithoutTrailingSlash)
 471                                     && rootUrl.isParentOf(url);
 472
 473     m_controller->setUrl(url); // emits urlChanged, which we forward
 474
 475     if (restoreColumnView) {
 476         applyViewProperties(rootUrl);
 477         loadDirectory(rootUrl);
 478         // Restoring the column view relies on the URL-history. It might be possible
 479         // that the view properties have been changed or deleted in the meantime, so
 480         // it cannot be asserted that really a column view has been created:
 481         if (itemView() == m_columnView) {
 482             m_columnView->setRootUrl(rootUrl);
 483             m_columnView->showColumn(url);
 484         }
 485     } else {
 486         applyViewProperties(url);
 487         loadDirectory(url);
 488     }
 489
 490     itemView()->setFocus();
 491
 492     emit startedPathLoading(url);
 493 }
 494
 495 void DolphinView::setUrl(const KUrl& url)
 496 {
 497     updateView(url, KUrl());
 498 }
 499
 500 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 501 {
 502     QWidget::mouseReleaseEvent(event);
 503     setActive(true);
 504 }
 505 void DolphinView::activate()
 506 {
 507     setActive(true);
 508 }
 509
 510 void DolphinView::triggerItem(const KFileItem& item)
 511 {
 512     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 513     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 514         // items are selected by the user, hence don't trigger the
 515         // item specified by 'index'
 516         return;
 517     }
 518
 519     if (item.isNull()) {
 520         return;
 521     }
 522
 523     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 524 }
 525
 526 void DolphinView::generatePreviews(const KFileItemList& items)
 527 {
 528     if (m_controller->showPreview()) {
 529         KIO::PreviewJob* job = KIO::filePreview(items, 128);
 530         connect(job, SIGNAL(gotPreview(const KFileItem&, const QPixmap&)),
 531                 this, SLOT(showPreview(const KFileItem&, const QPixmap&)));
 532     }
 533 }
 534
 535 void DolphinView::showPreview(const KFileItem& item, const QPixmap& pixmap)
 536 {
 537     Q_ASSERT(!item.isNull());
 538     if (item.url().directory() != m_dirLister->url().path()) {
 539         // the preview job is still working on items of an older URL, hence
 540         // the item is not part of the directory model anymore
 541         return;
 542     }
 543
 544     const QModelIndex idx = m_dolphinModel->indexForItem(item);
 545     if (idx.isValid() && (idx.column() == 0)) {
 546         const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 547         if (KonqMimeData::decodeIsCutSelection(mimeData) && isCutItem(item)) {
 548             KIconEffect iconEffect;
 549             const QPixmap cutPixmap = iconEffect.apply(pixmap, KIconLoader::Desktop, KIconLoader::DisabledState);
 550             m_dolphinModel->setData(idx, QIcon(cutPixmap), Qt::DecorationRole);
 551         } else {
 552             m_dolphinModel->setData(idx, QIcon(pixmap), Qt::DecorationRole);
 553         }
 554     }
 555 }
 556
 557 void DolphinView::emitSelectionChangedSignal()
 558 {
 559     emit selectionChanged(DolphinView::selectedItems());
 560 }
 561
 562 void DolphinView::loadDirectory(const KUrl& url, bool reload)
 563 {
 564     if (!url.isValid()) {
 565         const QString location(url.pathOrUrl());
 566         if (location.isEmpty()) {
 567             emit errorMessage(i18nc("@info:status", "The location is empty."));
 568         } else {
 569             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
 570         }
 571         return;
 572     }
 573
 574     m_cutItemsCache.clear();
 575     m_loadingDirectory = true;
 576
 577     m_dirLister->stop();
 578     m_dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
 579
 580     if (isColumnViewActive()) {
 581         // adjusting the directory lister is not enough in the case of the
 582         // column view, as each column has its own directory lister internally...
 583         if (reload) {
 584             m_columnView->reload();
 585         } else {
 586             m_columnView->showColumn(url);
 587         }
 588     }
 589 }
 590
 591 KUrl DolphinView::viewPropertiesUrl() const
 592 {
 593     if (isColumnViewActive()) {
 594         return m_dirLister->url();
 595     }
 596
 597     return url();
 598 }
 599
 600 void DolphinView::applyViewProperties(const KUrl& url)
 601 {
 602     if (isColumnViewActive() && rootUrl().isParentOf(url)) {
 603         // The column view is active, hence don't apply the view properties
 604         // of sub directories (represented by columns) to the view. The
 605         // view always represents the properties of the first column.
 606         return;
 607     }
 608
 609     const ViewProperties props(url);
 610
 611     const Mode mode = props.viewMode();
 612     if (m_mode != mode) {
 613         m_mode = mode;
 614         createView();
 615         emit modeChanged();
 616     }
 617     if (itemView() == 0) {
 618         createView();
 619     }
 620     Q_ASSERT(itemView() != 0);
 621     Q_ASSERT(m_fileItemDelegate != 0);
 622
 623     const bool showHiddenFiles = props.showHiddenFiles();
 624     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
 625         m_dirLister->setShowingDotFiles(showHiddenFiles);
 626         m_controller->setShowHiddenFiles(showHiddenFiles);
 627         emit showHiddenFilesChanged();
 628     }
 629
 630     m_storedCategorizedSorting = props.categorizedSorting();
 631     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 632     if (categorized != m_proxyModel->isCategorizedModel()) {
 633         m_proxyModel->setCategorizedModel(categorized);
 634         m_proxyModel->sort(m_proxyModel->sortColumn(), m_proxyModel->sortOrder());
 635         emit categorizedSortingChanged();
 636     }
 637
 638     const DolphinView::Sorting sorting = props.sorting();
 639     if (sorting != m_proxyModel->sorting()) {
 640         m_proxyModel->setSorting(sorting);
 641         emit sortingChanged(sorting);
 642     }
 643
 644     const Qt::SortOrder sortOrder = props.sortOrder();
 645     if (sortOrder != m_proxyModel->sortOrder()) {
 646         m_proxyModel->setSortOrder(sortOrder);
 647         emit sortOrderChanged(sortOrder);
 648     }
 649
 650     KFileItemDelegate::InformationList info = props.additionalInfo();
 651     if (info != m_fileItemDelegate->showInformation()) {
 652         m_controller->setAdditionalInfoCount(info.count());
 653         m_fileItemDelegate->setShowInformation(info);
 654         emit additionalInfoChanged(info);
 655     }
 656
 657     const bool showPreview = props.showPreview();
 658     if (showPreview != m_controller->showPreview()) {
 659         m_controller->setShowPreview(showPreview);
 660         emit showPreviewChanged();
 661     }
 662 }
 663
 664 void DolphinView::changeSelection(const KFileItemList& selection)
 665 {
 666     clearSelection();
 667     if (selection.isEmpty()) {
 668         return;
 669     }
 670     const KUrl& baseUrl = url();
 671     KUrl url;
 672     QItemSelection new_selection;
 673     foreach(const KFileItem& item, selection) {
 674         url = item.url().upUrl();
 675         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 676             QModelIndex index = m_proxyModel->mapFromSource(m_dolphinModel->indexForItem(item));
 677             new_selection.select(index, index);
 678         }
 679     }
 680     itemView()->selectionModel()->select(new_selection,
 681                                          QItemSelectionModel::ClearAndSelect
 682                                          | QItemSelectionModel::Current);
 683 }
 684
 685 void DolphinView::openContextMenu(const QPoint& pos)
 686 {
 687     KFileItem item;
 688
 689     const QModelIndex index = itemView()->indexAt(pos);
 690     if (isValidNameIndex(index)) {
 691         item = fileItem(index);
 692     }
 693
 694     emit requestContextMenu(item, url());
 695 }
 696
 697 void DolphinView::dropUrls(const KUrl::List& urls,
 698                            const KUrl& destPath,
 699                            const QModelIndex& destIndex,
 700                            QWidget* source)
 701 {
 702     KFileItem directory;
 703     if (isValidNameIndex(destIndex)) {
 704         KFileItem item = fileItem(destIndex);
 705         Q_ASSERT(!item.isNull());
 706         if (item.isDir()) {
 707             // the URLs are dropped above a directory
 708             directory = item;
 709         }
 710     }
 711
 712     if ((directory.isNull()) && (source == itemView())) {
 713         // The dropping is done into the same viewport where
 714         // the dragging has been started. Just ignore this...
 715         return;
 716     }
 717
 718     const KUrl& destination = (directory.isNull()) ?
 719                               destPath : directory.url();
 720     dropUrls(urls, destination);
 721 }
 722
 723 void DolphinView::dropUrls(const KUrl::List& urls,
 724                            const KUrl& destination)
 725 {
 726     emit urlsDropped(urls, destination);
 727 }
 728
 729 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 730 {
 731     ViewProperties props(viewPropertiesUrl());
 732     props.setSorting(sorting);
 733
 734     m_proxyModel->setSorting(sorting);
 735
 736     emit sortingChanged(sorting);
 737 }
 738
 739 void DolphinView::updateSortOrder(Qt::SortOrder order)
 740 {
 741     ViewProperties props(viewPropertiesUrl());
 742     props.setSortOrder(order);
 743
 744     m_proxyModel->setSortOrder(order);
 745
 746     emit sortOrderChanged(order);
 747 }
 748
 749 void DolphinView::emitContentsMoved()
 750 {
 751     // only emit the contents moved signal if:
 752     // - no directory loading is ongoing (this would reset the contents position
 753     //   always to (0, 0))
 754     // - if the Column View is active: the column view does an automatic
 755     //   positioning during the loading operation, which must be remembered
 756     if (!m_loadingDirectory || isColumnViewActive()) {
 757         const QPoint pos(contentsPosition());
 758         emit contentsMoved(pos.x(), pos.y());
 759     }
 760 }
 761
 762 void DolphinView::updateCutItems()
 763 {
 764     // restore the icons of all previously selected items to the
 765     // original state...
 766     QList<CutItem>::const_iterator it = m_cutItemsCache.begin();
 767     QList<CutItem>::const_iterator end = m_cutItemsCache.end();
 768     while (it != end) {
 769         const QModelIndex index = m_dolphinModel->indexForUrl((*it).url);
 770         if (index.isValid()) {
 771             m_dolphinModel->setData(index, QIcon((*it).pixmap), Qt::DecorationRole);
 772         }
 773         ++it;
 774     }
 775     m_cutItemsCache.clear();
 776
 777     // ... and apply an item effect to all currently cut items
 778     applyCutItemEffect();
 779 }
 780
 781 void DolphinView::showHoverInformation(const KFileItem& item)
 782 {
 783     if (hasSelection()) {
 784         return;
 785     }
 786
 787     emit requestItemInfo(item);
 788 }
 789
 790 void DolphinView::clearHoverInformation()
 791 {
 792     emit requestItemInfo(KFileItem());
 793 }
 794
 795
 796 void DolphinView::createView()
 797 {
 798     KFileItemDelegate::InformationList infoList;
 799     if (m_fileItemDelegate != 0) {
 800         infoList = m_fileItemDelegate->showInformation();
 801     }
 802
 803     // delete current view
 804     QAbstractItemView* view = itemView();
 805     if (view != 0) {
 806         m_topLayout->removeWidget(view);
 807         view->close();
 808         view->deleteLater();
 809         view = 0;
 810         m_iconsView = 0;
 811         m_detailsView = 0;
 812         m_columnView = 0;
 813         m_fileItemDelegate = 0;
 814     }
 815
 816     Q_ASSERT(m_iconsView == 0);
 817     Q_ASSERT(m_detailsView == 0);
 818     Q_ASSERT(m_columnView == 0);
 819
 820     // ... and recreate it representing the current mode
 821     switch (m_mode) {
 822     case IconsView: {
 823         m_iconsView = new DolphinIconsView(this, m_controller);
 824         view = m_iconsView;
 825         break;
 826     }
 827
 828     case DetailsView:
 829         m_detailsView = new DolphinDetailsView(this, m_controller);
 830         view = m_detailsView;
 831         break;
 832
 833     case ColumnView:
 834         m_columnView = new DolphinColumnView(this, m_controller);
 835         view = m_columnView;
 836         break;
 837     }
 838
 839     Q_ASSERT(view != 0);
 840
 841     m_fileItemDelegate = new KFileItemDelegate(view);
 842     m_fileItemDelegate->setShowInformation(infoList);
 843     view->setItemDelegate(m_fileItemDelegate);
 844
 845     view->setModel(m_proxyModel);
 846     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
 847
 848     new KMimeTypeResolver(view, m_dolphinModel);
 849     m_topLayout->insertWidget(1, view);
 850
 851     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
 852             this, SLOT(emitSelectionChangedSignal()));
 853     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
 854             this, SLOT(emitContentsMoved()));
 855     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
 856             this, SLOT(emitContentsMoved()));
 857     view->setFocus();
 858 }
 859
 860 QAbstractItemView* DolphinView::itemView() const
 861 {
 862     if (m_detailsView != 0) {
 863         return m_detailsView;
 864     } else if (m_columnView != 0) {
 865         return m_columnView;
 866     }
 867
 868     return m_iconsView;
 869 }
 870
 871 bool DolphinView::isValidNameIndex(const QModelIndex& index) const
 872 {
 873     return index.isValid() && (index.column() == DolphinModel::Name);
 874 }
 875
 876 bool DolphinView::isCutItem(const KFileItem& item) const
 877 {
 878     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 879     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
 880
 881     const KUrl& itemUrl = item.url();
 882     KUrl::List::const_iterator it = cutUrls.begin();
 883     const KUrl::List::const_iterator end = cutUrls.end();
 884     while (it != end) {
 885         if (*it == itemUrl) {
 886             return true;
 887         }
 888         ++it;
 889     }
 890
 891     return false;
 892 }
 893
 894 void DolphinView::applyCutItemEffect()
 895 {
 896     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 897     if (!KonqMimeData::decodeIsCutSelection(mimeData)) {
 898         return;
 899     }
 900
 901     KFileItemList items(m_dirLister->items());
 902     KFileItemList::const_iterator it = items.begin();
 903     const KFileItemList::const_iterator end = items.end();
 904     while (it != end) {
 905         const KFileItem item = *it;
 906         if (isCutItem(item)) {
 907             const QModelIndex index = m_dolphinModel->indexForItem(item);
 908             const QVariant value = m_dolphinModel->data(index, Qt::DecorationRole);
 909             if (value.type() == QVariant::Icon) {
 910                 const QIcon icon(qvariant_cast<QIcon>(value));
 911                 QPixmap pixmap = icon.pixmap(128, 128);
 912
 913                 // remember current pixmap for the item to be able
 914                 // to restore it when other items get cut
 915                 CutItem cutItem;
 916                 cutItem.url = item.url();
 917                 cutItem.pixmap = pixmap;
 918                 m_cutItemsCache.append(cutItem);
 919
 920                 // apply icon effect to the cut item
 921                 KIconEffect iconEffect;
 922                 pixmap = iconEffect.apply(pixmap, KIconLoader::Desktop, KIconLoader::DisabledState);
 923                 m_dolphinModel->setData(index, QIcon(pixmap), Qt::DecorationRole);
 924             }
 925         }
 926         ++it;
 927     }
 928 }
 929
 930 #include "dolphinview.moc"