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 <kdirmodel.h>
  33 #include <kdirlister.h>
  34 #include <kfileitemdelegate.h>
  35 #include <klocale.h>
  36 #include <kiconeffect.h>
  37 #include <kio/netaccess.h>
  38 #include <kio/renamedialog.h>
  39 #include <kio/previewjob.h>
  40 #include <kmimetyperesolver.h>
  41 #include <konqmimedata.h>
  42 #include <konq_operations.h>
  43 #include <kurl.h>
  44
  45 #include "dolphincolumnview.h"
  46 #include "dolphincontroller.h"
  47 #include "dolphinsortfilterproxymodel.h"
  48 #include "dolphindetailsview.h"
  49 #include "dolphiniconsview.h"
  50 #include "dolphinitemcategorizer.h"
  51 #include "renamedialog.h"
  52 #include "viewproperties.h"
  53 #include "dolphinsettings.h"
  54 #include "dolphin_generalsettings.h"
  55
  56 DolphinView::DolphinView(QWidget* parent,
  57                          const KUrl& url,
  58                          KDirLister* dirLister,
  59                          KDirModel* dirModel,
  60                          DolphinSortFilterProxyModel* proxyModel) :
  61     QWidget(parent),
  62     m_active(true),
  63     m_loadingDirectory(false),
  64     m_initializeColumnView(false),
  65     m_mode(DolphinView::IconsView),
  66     m_topLayout(0),
  67     m_controller(0),
  68     m_iconsView(0),
  69     m_detailsView(0),
  70     m_columnView(0),
  71     m_fileItemDelegate(0),
  72     m_dirModel(dirModel),
  73     m_dirLister(dirLister),
  74     m_proxyModel(proxyModel)
  75 {
  76     setFocusPolicy(Qt::StrongFocus);
  77     m_topLayout = new QVBoxLayout(this);
  78     m_topLayout->setSpacing(0);
  79     m_topLayout->setMargin(0);
  80
  81     QClipboard* clipboard = QApplication::clipboard();
  82     connect(clipboard, SIGNAL(dataChanged()),
  83             this, SLOT(updateCutItems()));
  84
  85     connect(m_dirLister, SIGNAL(completed()),
  86             this, SLOT(updateCutItems()));
  87     connect(m_dirLister, SIGNAL(newItems(const KFileItemList&)),
  88             this, SLOT(generatePreviews(const KFileItemList&)));
  89
  90     m_controller = new DolphinController(this);
  91     m_controller->setUrl(url);
  92     connect(m_controller, SIGNAL(urlChanged(const KUrl&)),
  93             this, SIGNAL(urlChanged(const KUrl&)));
  94     connect(m_controller, SIGNAL(requestContextMenu(const QPoint&)),
  95             this, SLOT(openContextMenu(const QPoint&)));
  96     connect(m_controller, SIGNAL(urlsDropped(const KUrl::List&, const QModelIndex&, QWidget*)),
  97             this, SLOT(dropUrls(const KUrl::List&, const QModelIndex&, QWidget*)));
  98     connect(m_controller, SIGNAL(sortingChanged(DolphinView::Sorting)),
  99             this, SLOT(updateSorting(DolphinView::Sorting)));
 100     connect(m_controller, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 101             this, SLOT(updateSortOrder(Qt::SortOrder)));
 102     connect(m_controller, SIGNAL(itemTriggered(const QModelIndex&)),
 103             this, SLOT(triggerItem(const QModelIndex&)));
 104     connect(m_controller, SIGNAL(activated()),
 105             this, SLOT(activate()));
 106     connect(m_controller, SIGNAL(itemEntered(const QModelIndex&)),
 107             this, SLOT(showHoverInformation(const QModelIndex&)));
 108     connect(m_controller, SIGNAL(viewportEntered()),
 109             this, SLOT(clearHoverInformation()));
 110
 111     applyViewProperties(url);
 112     m_topLayout->addWidget(itemView());
 113 }
 114
 115 DolphinView::~DolphinView()
 116 {
 117 }
 118
 119 const KUrl& DolphinView::url() const
 120 {
 121     return m_controller->url();
 122 }
 123
 124 KUrl DolphinView::rootUrl() const
 125 {
 126     return isColumnViewActive() ? m_dirLister->url() : url();
 127 }
 128
 129 void DolphinView::setActive(bool active)
 130 {
 131     if (active == m_active) {
 132         return;
 133     }
 134
 135     m_active = active;
 136
 137     updateViewportColor();
 138     update();
 139
 140     if (active) {
 141         emit activated();
 142     }
 143 }
 144
 145 bool DolphinView::isActive() const
 146 {
 147     return m_active;
 148 }
 149
 150 void DolphinView::setMode(Mode mode)
 151 {
 152     if (mode == m_mode) {
 153         return; // the wished mode is already set
 154     }
 155
 156     m_mode = mode;
 157
 158     if (isColumnViewActive()) {
 159         // When changing the mode in the column view, it makes sense
 160         // to go back to the root URL of the column view automatically.
 161         // Otherwise there it would not be possible to turn off the column view
 162         // without focusing the first column.
 163         setUrl(m_dirLister->url());
 164         m_controller->setUrl(m_dirLister->url());
 165     }
 166
 167     const KUrl viewPropsUrl = viewPropertiesUrl();
 168     ViewProperties props(viewPropsUrl);
 169     props.setViewMode(m_mode);
 170
 171     createView();
 172     startDirLister(viewPropsUrl);
 173
 174     emit modeChanged();
 175 }
 176
 177 DolphinView::Mode DolphinView::mode() const
 178 {
 179     return m_mode;
 180 }
 181
 182 void DolphinView::setShowPreview(bool show)
 183 {
 184     const KUrl viewPropsUrl = viewPropertiesUrl();
 185     ViewProperties props(viewPropsUrl);
 186     props.setShowPreview(show);
 187
 188     m_controller->setShowPreview(show);
 189     emit showPreviewChanged();
 190
 191     startDirLister(viewPropsUrl, true);
 192 }
 193
 194 bool DolphinView::showPreview() const
 195 {
 196     return m_controller->showPreview();
 197 }
 198
 199 void DolphinView::setShowHiddenFiles(bool show)
 200 {
 201     if (m_dirLister->showingDotFiles() == show) {
 202         return;
 203     }
 204
 205     const KUrl viewPropsUrl = viewPropertiesUrl();
 206     ViewProperties props(viewPropsUrl);
 207     props.setShowHiddenFiles(show);
 208
 209     m_dirLister->setShowingDotFiles(show);
 210     emit showHiddenFilesChanged();
 211
 212     startDirLister(viewPropsUrl, true);
 213 }
 214
 215 bool DolphinView::showHiddenFiles() const
 216 {
 217     return m_dirLister->showingDotFiles();
 218 }
 219
 220 void DolphinView::setCategorizedSorting(bool categorized)
 221 {
 222     if (!supportsCategorizedSorting() || (categorized == categorizedSorting())) {
 223         return;
 224     }
 225
 226     Q_ASSERT(m_iconsView != 0);
 227     if (categorized) {
 228         Q_ASSERT(m_iconsView->itemCategorizer() == 0);
 229         m_iconsView->setItemCategorizer(new DolphinItemCategorizer());
 230     } else {
 231         KItemCategorizer* categorizer = m_iconsView->itemCategorizer();
 232         m_iconsView->setItemCategorizer(0);
 233         delete categorizer;
 234     }
 235
 236     ViewProperties props(viewPropertiesUrl());
 237     props.setCategorizedSorting(categorized);
 238     props.save();
 239
 240     emit categorizedSortingChanged();
 241 }
 242
 243 bool DolphinView::categorizedSorting() const
 244 {
 245     if (!supportsCategorizedSorting()) {
 246         return false;
 247     }
 248
 249     Q_ASSERT(m_iconsView != 0);
 250     return m_iconsView->itemCategorizer() != 0;
 251 }
 252
 253 bool DolphinView::supportsCategorizedSorting() const
 254 {
 255     return m_iconsView != 0;
 256 }
 257
 258 void DolphinView::selectAll()
 259 {
 260     itemView()->selectAll();
 261 }
 262
 263 void DolphinView::invertSelection()
 264 {
 265     if (isColumnViewActive()) {
 266         // In opposite to QAbstractItemView::selectAll() there is no virtual method
 267         // for adjusting the invertion of a selection. As the generic approach by using
 268         // the selection model does not work for the column view, we delegate this task:
 269         m_columnView->invertSelection();
 270     } else {
 271         QItemSelectionModel* selectionModel = itemView()->selectionModel();
 272         const QAbstractItemModel* itemModel = selectionModel->model();
 273
 274         const QModelIndex topLeft = itemModel->index(0, 0);
 275         const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 276                                                          itemModel->columnCount() - 1);
 277
 278         QItemSelection selection(topLeft, bottomRight);
 279         selectionModel->select(selection, QItemSelectionModel::Toggle);
 280     }
 281 }
 282
 283 bool DolphinView::hasSelection() const
 284 {
 285     return itemView()->selectionModel()->hasSelection();
 286 }
 287
 288 void DolphinView::clearSelection()
 289 {
 290     itemView()->selectionModel()->clear();
 291 }
 292
 293 KFileItemList DolphinView::selectedItems() const
 294 {
 295     const QAbstractItemView* view = itemView();
 296
 297     // Our view has a selection, we will map them back to the DirModel
 298     // and then fill the KFileItemList.
 299     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 300
 301     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 302     KFileItemList itemList;
 303
 304     const QModelIndexList indexList = selection.indexes();
 305     QModelIndexList::const_iterator end = indexList.end();
 306     for (QModelIndexList::const_iterator it = indexList.begin(); it != end; ++it) {
 307         Q_ASSERT((*it).isValid());
 308
 309         KFileItem* item = m_dirModel->itemForIndex(*it);
 310         if (item != 0) {
 311             itemList.append(item);
 312         }
 313     }
 314
 315     return itemList;
 316 }
 317
 318 KUrl::List DolphinView::selectedUrls() const
 319 {
 320     KUrl::List urls;
 321
 322     const KFileItemList list = selectedItems();
 323     KFileItemList::const_iterator it = list.begin();
 324     const KFileItemList::const_iterator end = list.end();
 325     while (it != end) {
 326         KFileItem* item = *it;
 327         urls.append(item->url());
 328         ++it;
 329     }
 330
 331     return urls;
 332 }
 333
 334 KFileItem* DolphinView::fileItem(const QModelIndex index) const
 335 {
 336     const QModelIndex dirModelIndex = m_proxyModel->mapToSource(index);
 337     return m_dirModel->itemForIndex(dirModelIndex);
 338 }
 339
 340 void DolphinView::setContentsPosition(int x, int y)
 341 {
 342     QAbstractItemView* view = itemView();
 343     view->horizontalScrollBar()->setValue(x);
 344     view->verticalScrollBar()->setValue(y);
 345
 346     m_loadingDirectory = false;
 347 }
 348
 349 QPoint DolphinView::contentsPosition() const
 350 {
 351     const int x = itemView()->horizontalScrollBar()->value();
 352     const int y = itemView()->verticalScrollBar()->value();
 353     return QPoint(x, y);
 354 }
 355
 356 void DolphinView::zoomIn()
 357 {
 358     m_controller->triggerZoomIn();
 359 }
 360
 361 void DolphinView::zoomOut()
 362 {
 363     m_controller->triggerZoomOut();
 364 }
 365
 366 bool DolphinView::isZoomInPossible() const
 367 {
 368     return m_controller->isZoomInPossible();
 369 }
 370
 371 bool DolphinView::isZoomOutPossible() const
 372 {
 373     return m_controller->isZoomOutPossible();
 374 }
 375
 376 void DolphinView::setSorting(Sorting sorting)
 377 {
 378     if (sorting != this->sorting()) {
 379         updateSorting(sorting);
 380     }
 381 }
 382
 383 DolphinView::Sorting DolphinView::sorting() const
 384 {
 385     return m_proxyModel->sorting();
 386 }
 387
 388 void DolphinView::setSortOrder(Qt::SortOrder order)
 389 {
 390     if (sortOrder() != order) {
 391         updateSortOrder(order);
 392     }
 393 }
 394
 395 Qt::SortOrder DolphinView::sortOrder() const
 396 {
 397     return m_proxyModel->sortOrder();
 398 }
 399
 400 void DolphinView::setAdditionalInfo(KFileItemDelegate::AdditionalInformation info)
 401 {
 402     const KUrl viewPropsUrl = viewPropertiesUrl();
 403     ViewProperties props(viewPropsUrl);
 404     props.setAdditionalInfo(info);
 405
 406     m_controller->setShowAdditionalInfo(info != KFileItemDelegate::NoInformation);
 407     m_fileItemDelegate->setAdditionalInformation(info);
 408
 409     emit additionalInfoChanged(info);
 410     startDirLister(viewPropsUrl, true);
 411 }
 412
 413 KFileItemDelegate::AdditionalInformation DolphinView::additionalInfo() const
 414 {
 415     return m_fileItemDelegate->additionalInformation();
 416 }
 417
 418 void DolphinView::reload()
 419 {
 420     setUrl(url());
 421     startDirLister(url(), true);
 422 }
 423
 424 void DolphinView::refresh()
 425 {
 426     createView();
 427     applyViewProperties(m_controller->url());
 428     reload();
 429     updateViewportColor();
 430 }
 431
 432 void DolphinView::setUrl(const KUrl& url)
 433 {
 434     if (m_controller->url() == url) {
 435         return;
 436     }
 437
 438     m_controller->setUrl(url);
 439
 440     applyViewProperties(url);
 441
 442     startDirLister(url);
 443     emit urlChanged(url);
 444 }
 445
 446 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 447 {
 448     QWidget::mouseReleaseEvent(event);
 449     setActive(true);;
 450 }
 451 void DolphinView::activate()
 452 {
 453     setActive(true);
 454 }
 455
 456 void DolphinView::triggerItem(const QModelIndex& index)
 457 {
 458     if (!isValidNameIndex(index)) {
 459         clearSelection();
 460         showHoverInformation(index);
 461         return;
 462     }
 463
 464     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 465     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 466         // items are selected by the user, hence don't trigger the
 467         // item specified by 'index'
 468         return;
 469     }
 470
 471     KFileItem* item = m_dirModel->itemForIndex(m_proxyModel->mapToSource(index));
 472     if (item == 0) {
 473         return;
 474     }
 475
 476     // The stuff below should be moved to ViewContainer and be just a signal?
 477
 478     // Prefer the local path over the URL.
 479     bool isLocal;
 480     KUrl url = item->mostLocalUrl(isLocal);
 481
 482     if (item->isDir()) {
 483         setUrl(url);
 484     } else if (item->isFile()) {
 485         // allow to browse through ZIP and tar files
 486         KMimeType::Ptr mime = item->mimeTypePtr();
 487         if (mime->is("application/zip")) {
 488             url.setProtocol("zip");
 489             setUrl(url);
 490         } else if (mime->is("application/x-tar") ||
 491                    mime->is("application/x-tarz") ||
 492                    mime->is("application/x-bzip-compressed-tar") ||
 493                    mime->is("application/x-compressed-tar") ||
 494                    mime->is("application/x-tzo")) {
 495             url.setProtocol("tar");
 496             setUrl(url);
 497         } else {
 498             item->run();
 499         }
 500     } else {
 501         item->run();
 502     }
 503 }
 504
 505 void DolphinView::generatePreviews(const KFileItemList& items)
 506 {
 507     if (m_controller->showPreview()) {
 508
 509         // Must turn QList<KFileItem *> to QList<KFileItem>...
 510         QList<KFileItem> itemsToPreview;
 511         foreach( KFileItem* it, items )
 512             itemsToPreview.append( *it );
 513
 514         KIO::PreviewJob* job = KIO::filePreview(itemsToPreview, 128);
 515         connect(job, SIGNAL(gotPreview(const KFileItem&, const QPixmap&)),
 516                 this, SLOT(showPreview(const KFileItem&, const QPixmap&)));
 517     }
 518 }
 519
 520 void DolphinView::showPreview(const KFileItem& item, const QPixmap& pixmap)
 521 {
 522     Q_ASSERT(!item.isNull());
 523     if (item.url().directory() != m_dirLister->url().path()) {
 524         // the preview job is still working on items of an older URL, hence
 525         // the item is not part of the directory model anymore
 526         return;
 527     }
 528
 529     const QModelIndex idx = m_dirModel->indexForItem(item);
 530     if (idx.isValid() && (idx.column() == 0)) {
 531         const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 532         if (KonqMimeData::decodeIsCutSelection(mimeData) && isCutItem(item)) {
 533             KIconEffect iconEffect;
 534             const QPixmap cutPixmap = iconEffect.apply(pixmap, K3Icon::Desktop, K3Icon::DisabledState);
 535             m_dirModel->setData(idx, QIcon(cutPixmap), Qt::DecorationRole);
 536         } else {
 537             m_dirModel->setData(idx, QIcon(pixmap), Qt::DecorationRole);
 538         }
 539     }
 540 }
 541
 542 void DolphinView::emitSelectionChangedSignal()
 543 {
 544     emit selectionChanged(DolphinView::selectedItems());
 545 }
 546
 547 void DolphinView::startDirLister(const KUrl& url, bool reload)
 548 {
 549     if (!url.isValid()) {
 550         const QString location(url.pathOrUrl());
 551         if (location.isEmpty()) {
 552             emit errorMessage(i18nc("@info:status", "The location is empty."));
 553         } else {
 554             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
 555         }
 556         return;
 557     }
 558
 559     m_cutItemsCache.clear();
 560     m_loadingDirectory = true;
 561
 562     m_dirLister->stop();
 563
 564     bool openDir = true;
 565     bool keepOldDirs = isColumnViewActive() && !m_initializeColumnView;
 566     m_initializeColumnView = false;
 567
 568     if (keepOldDirs) {
 569         if (reload) {
 570             keepOldDirs = false;
 571
 572             const KUrl& dirListerUrl = m_dirLister->url();
 573             if (dirListerUrl.isValid()) {
 574                 const KUrl::List dirs = m_dirLister->directories();
 575                 KUrl url;
 576                 foreach(url, dirs) {
 577                     m_dirLister->updateDirectory(url);
 578                 }
 579                 openDir = false;
 580             }
 581         } else if (m_dirLister->directories().contains(url)) {
 582             // The dir lister contains the directory already, so
 583             // KDirLister::openUrl() may not been invoked twice.
 584             m_dirLister->updateDirectory(url);
 585             openDir = false;
 586         } else {
 587             const KUrl& dirListerUrl = m_dirLister->url();
 588             if ((dirListerUrl == url) || !m_dirLister->url().isParentOf(url)) {
 589                 // The current URL is not a child of the dir lister
 590                 // URL. This may happen when e. g. a bookmark has been selected
 591                 // and hence the view must be reset.
 592                 keepOldDirs = false;
 593             }
 594         }
 595     }
 596
 597     if (openDir) {
 598         m_dirLister->openUrl(url, keepOldDirs, reload);
 599     }
 600 }
 601
 602 KUrl DolphinView::viewPropertiesUrl() const
 603 {
 604     if (isColumnViewActive()) {
 605         return m_dirLister->url();
 606     }
 607
 608     return url();
 609 }
 610
 611 void DolphinView::applyViewProperties(const KUrl& url)
 612 {
 613     if (isColumnViewActive() && m_dirLister->url().isParentOf(url)) {
 614         // The column view is active, hence don't apply the view properties
 615         // of sub directories (represented by columns) to the view. The
 616         // view always represents the properties of the first column.
 617         return;
 618     }
 619
 620     const ViewProperties props(url);
 621
 622     const Mode mode = props.viewMode();
 623     if (m_mode != mode) {
 624         m_mode = mode;
 625         createView();
 626         emit modeChanged();
 627
 628         if (m_mode == ColumnView) {
 629             // The mode has been changed to the Column View. When starting the dir
 630             // lister with DolphinView::startDirLister() it is important to give a
 631             // hint that the dir lister may not keep the current directory
 632             // although this is the default for showing a hierarchy.
 633             m_initializeColumnView = true;
 634         }
 635     }
 636     if (itemView() == 0) {
 637         createView();
 638     }
 639     Q_ASSERT(itemView() != 0);
 640     Q_ASSERT(m_fileItemDelegate != 0);
 641
 642     const bool showHiddenFiles = props.showHiddenFiles();
 643     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
 644         m_dirLister->setShowingDotFiles(showHiddenFiles);
 645         emit showHiddenFilesChanged();
 646     }
 647
 648     const bool categorized = props.categorizedSorting();
 649     if (categorized != categorizedSorting()) {
 650         if (supportsCategorizedSorting()) {
 651             Q_ASSERT(m_iconsView != 0);
 652             if (categorized) {
 653                 Q_ASSERT(m_iconsView->itemCategorizer() == 0);
 654                 m_iconsView->setItemCategorizer(new DolphinItemCategorizer());
 655             } else {
 656                 KItemCategorizer* categorizer = m_iconsView->itemCategorizer();
 657                 m_iconsView->setItemCategorizer(0);
 658                 delete categorizer;
 659             }
 660         }
 661         emit categorizedSortingChanged();
 662     }
 663
 664     const DolphinView::Sorting sorting = props.sorting();
 665     if (sorting != m_proxyModel->sorting()) {
 666         m_proxyModel->setSorting(sorting);
 667         emit sortingChanged(sorting);
 668     }
 669
 670     const Qt::SortOrder sortOrder = props.sortOrder();
 671     if (sortOrder != m_proxyModel->sortOrder()) {
 672         m_proxyModel->setSortOrder(sortOrder);
 673         emit sortOrderChanged(sortOrder);
 674     }
 675
 676     KFileItemDelegate::AdditionalInformation info = props.additionalInfo();
 677     if (info != m_fileItemDelegate->additionalInformation()) {
 678         m_controller->setShowAdditionalInfo(info != KFileItemDelegate::NoInformation);
 679         m_fileItemDelegate->setAdditionalInformation(info);
 680         emit additionalInfoChanged(info);
 681     }
 682
 683     const bool showPreview = props.showPreview();
 684     if (showPreview != m_controller->showPreview()) {
 685         m_controller->setShowPreview(showPreview);
 686         emit showPreviewChanged();
 687     }
 688 }
 689
 690 void DolphinView::changeSelection(const KFileItemList& selection)
 691 {
 692     clearSelection();
 693     if (selection.isEmpty()) {
 694         return;
 695     }
 696     const KUrl& baseUrl = url();
 697     KUrl url;
 698     QItemSelection new_selection;
 699     foreach(KFileItem* item, selection) {
 700         url = item->url().upUrl();
 701         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 702             QModelIndex index = m_proxyModel->mapFromSource(m_dirModel->indexForItem(*item));
 703             new_selection.select(index, index);
 704         }
 705     }
 706     itemView()->selectionModel()->select(new_selection,
 707                                          QItemSelectionModel::ClearAndSelect
 708                                          | QItemSelectionModel::Current);
 709 }
 710
 711 void DolphinView::openContextMenu(const QPoint& pos)
 712 {
 713     KFileItem* item = 0;
 714
 715     const QModelIndex index = itemView()->indexAt(pos);
 716     if (isValidNameIndex(index)) {
 717         item = fileItem(index);
 718     }
 719
 720     emit requestContextMenu(item, url());
 721 }
 722
 723 void DolphinView::dropUrls(const KUrl::List& urls,
 724                            const QModelIndex& index,
 725                            QWidget* source)
 726 {
 727     KFileItem* directory = 0;
 728     if (isValidNameIndex(index)) {
 729         KFileItem* item = fileItem(index);
 730         Q_ASSERT(item != 0);
 731         if (item->isDir()) {
 732             // the URLs are dropped above a directory
 733             directory = item;
 734         }
 735     }
 736
 737     if ((directory == 0) && (source == itemView())) {
 738         // The dropping is done into the same viewport where
 739         // the dragging has been started. Just ignore this...
 740         return;
 741     }
 742
 743     const KUrl& destination = (directory == 0) ?
 744                               url() : directory->url();
 745     dropUrls(urls, destination);
 746 }
 747
 748 void DolphinView::dropUrls(const KUrl::List& urls,
 749                            const KUrl& destination)
 750 {
 751     emit urlsDropped(urls, destination);
 752 }
 753
 754 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 755 {
 756     ViewProperties props(viewPropertiesUrl());
 757     props.setSorting(sorting);
 758
 759     m_proxyModel->setSorting(sorting);
 760
 761     emit sortingChanged(sorting);
 762 }
 763
 764 void DolphinView::updateSortOrder(Qt::SortOrder order)
 765 {
 766     ViewProperties props(viewPropertiesUrl());
 767     props.setSortOrder(order);
 768
 769     m_proxyModel->setSortOrder(order);
 770
 771     emit sortOrderChanged(order);
 772 }
 773
 774 void DolphinView::emitContentsMoved()
 775 {
 776     // only emit the contents moved signal if:
 777     // - no directory loading is ongoing (this would reset the contents position
 778     //   always to (0, 0))
 779     // - if the Column View is active: the column view does an automatic
 780     //   positioning during the loading operation, which must be remembered
 781     if (!m_loadingDirectory || isColumnViewActive()) {
 782         const QPoint pos(contentsPosition());
 783         emit contentsMoved(pos.x(), pos.y());
 784     }
 785 }
 786
 787 void DolphinView::updateCutItems()
 788 {
 789     // restore the icons of all previously selected items to the
 790     // original state...
 791     QList<CutItem>::const_iterator it = m_cutItemsCache.begin();
 792     QList<CutItem>::const_iterator end = m_cutItemsCache.end();
 793     while (it != end) {
 794         const QModelIndex index = m_dirModel->indexForUrl((*it).url);
 795         if (index.isValid()) {
 796             m_dirModel->setData(index, QIcon((*it).pixmap), Qt::DecorationRole);
 797         }
 798         ++it;
 799     }
 800     m_cutItemsCache.clear();
 801
 802     // ... and apply an item effect to all currently cut items
 803     applyCutItemEffect();
 804 }
 805
 806 void DolphinView::showHoverInformation(const QModelIndex& index)
 807 {
 808     if (hasSelection()) {
 809         return;
 810     }
 811
 812     const KFileItem* item = fileItem(index);
 813     if (item != 0) {
 814         emit requestItemInfo(*item);
 815     }
 816 }
 817
 818 void DolphinView::clearHoverInformation()
 819 {
 820     emit requestItemInfo(KFileItem());
 821 }
 822
 823
 824 void DolphinView::createView()
 825 {
 826     // delete current view
 827     QAbstractItemView* view = itemView();
 828     if (view != 0) {
 829         m_topLayout->removeWidget(view);
 830         view->close();
 831         if (view == m_iconsView) {
 832             KItemCategorizer* categorizer = m_iconsView->itemCategorizer();
 833             m_iconsView->setItemCategorizer(0);
 834             delete categorizer;
 835         }
 836         view->deleteLater();
 837         view = 0;
 838         m_iconsView = 0;
 839         m_detailsView = 0;
 840         m_columnView = 0;
 841         m_fileItemDelegate = 0;
 842     }
 843
 844     Q_ASSERT(m_iconsView == 0);
 845     Q_ASSERT(m_detailsView == 0);
 846     Q_ASSERT(m_columnView == 0);
 847
 848     // ... and recreate it representing the current mode
 849     switch (m_mode) {
 850     case IconsView:
 851         m_iconsView = new DolphinIconsView(this, m_controller);
 852         view = m_iconsView;
 853         break;
 854
 855     case DetailsView:
 856         m_detailsView = new DolphinDetailsView(this, m_controller);
 857         view = m_detailsView;
 858         break;
 859
 860     case ColumnView:
 861         m_columnView = new DolphinColumnView(this, m_controller);
 862         view = m_columnView;
 863         break;
 864     }
 865
 866     Q_ASSERT(view != 0);
 867
 868     m_fileItemDelegate = new KFileItemDelegate(view);
 869     view->setItemDelegate(m_fileItemDelegate);
 870
 871     view->setModel(m_proxyModel);
 872     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
 873
 874     new KMimeTypeResolver(view, m_dirModel);
 875     m_topLayout->insertWidget(1, view);
 876
 877     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
 878             this, SLOT(emitSelectionChangedSignal()));
 879     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
 880             this, SLOT(emitContentsMoved()));
 881     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
 882             this, SLOT(emitContentsMoved()));
 883 }
 884
 885 QAbstractItemView* DolphinView::itemView() const
 886 {
 887     if (m_detailsView != 0) {
 888         return m_detailsView;
 889     } else if (m_columnView != 0) {
 890         return m_columnView;
 891     }
 892
 893     return m_iconsView;
 894 }
 895
 896 bool DolphinView::isValidNameIndex(const QModelIndex& index) const
 897 {
 898     return index.isValid() && (index.column() == KDirModel::Name);
 899 }
 900
 901 bool DolphinView::isCutItem(const KFileItem& item) const
 902 {
 903     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 904     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
 905
 906     const KUrl& itemUrl = item.url();
 907     KUrl::List::const_iterator it = cutUrls.begin();
 908     const KUrl::List::const_iterator end = cutUrls.end();
 909     while (it != end) {
 910         if (*it == itemUrl) {
 911             return true;
 912         }
 913         ++it;
 914     }
 915
 916     return false;
 917 }
 918
 919 void DolphinView::applyCutItemEffect()
 920 {
 921     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 922     if (!KonqMimeData::decodeIsCutSelection(mimeData)) {
 923         return;
 924     }
 925
 926     KFileItemList items(m_dirLister->items());
 927     KFileItemList::const_iterator it = items.begin();
 928     const KFileItemList::const_iterator end = items.end();
 929     while (it != end) {
 930         KFileItem* item = *it;
 931         if (isCutItem(*item)) {
 932             const QModelIndex index = m_dirModel->indexForItem(*item);
 933             const KFileItem* item = m_dirModel->itemForIndex(index);
 934             const QVariant value = m_dirModel->data(index, Qt::DecorationRole);
 935             if ((value.type() == QVariant::Icon) && (item != 0)) {
 936                 const QIcon icon(qvariant_cast<QIcon>(value));
 937                 QPixmap pixmap = icon.pixmap(128, 128);
 938
 939                 // remember current pixmap for the item to be able
 940                 // to restore it when other items get cut
 941                 CutItem cutItem;
 942                 cutItem.url = item->url();
 943                 cutItem.pixmap = pixmap;
 944                 m_cutItemsCache.append(cutItem);
 945
 946                 // apply icon effect to the cut item
 947                 KIconEffect iconEffect;
 948                 pixmap = iconEffect.apply(pixmap, K3Icon::Desktop, K3Icon::DisabledState);
 949                 m_dirModel->setData(index, QIcon(pixmap), Qt::DecorationRole);
 950             }
 951         }
 952         ++it;
 953     }
 954 }
 955
 956 void DolphinView::updateViewportColor()
 957 {
 958     QColor color = KColorScheme(KColorScheme::View).background();
 959     if (m_active) {
 960         emit urlChanged(url());
 961         emit selectionChanged(selectedItems());
 962     } else {
 963         color.setAlpha(0);
 964     }
 965
 966     QWidget* viewport = itemView()->viewport();
 967     QPalette palette;
 968     palette.setColor(viewport->backgroundRole(), color);
 969     viewport->setPalette(palette);
 970 }
 971
 972 #include "dolphinview.moc"