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