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 <kdirmodel.h>
  32 #include <kdirlister.h>
  33 #include <kfileitemdelegate.h>
  34 #include <kglobalsettings.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                          Mode mode,
  62                          bool showHiddenFiles) :
  63     QWidget(parent),
  64     m_active(true),
  65     m_blockContentsMovedSignal(false),
  66     m_initializeColumnView(false),
  67     m_mode(mode),
  68     m_topLayout(0),
  69     m_controller(0),
  70     m_iconsView(0),
  71     m_detailsView(0),
  72     m_columnView(0),
  73     m_fileItemDelegate(0),
  74     m_dirModel(dirModel),
  75     m_dirLister(dirLister),
  76     m_proxyModel(proxyModel)
  77 {
  78     setFocusPolicy(Qt::StrongFocus);
  79     m_topLayout = new QVBoxLayout(this);
  80     m_topLayout->setSpacing(0);
  81     m_topLayout->setMargin(0);
  82
  83     QClipboard* clipboard = QApplication::clipboard();
  84     connect(clipboard, SIGNAL(dataChanged()),
  85             this, SLOT(updateCutItems()));
  86
  87     connect(m_dirLister, SIGNAL(completed()),
  88             this, SLOT(restoreContentsPos()));
  89     connect(m_dirLister, SIGNAL(completed()),
  90             this, SLOT(updateCutItems()));
  91     connect(m_dirLister, SIGNAL(newItems(const KFileItemList&)),
  92             this, SLOT(generatePreviews(const KFileItemList&)));
  93
  94     m_controller = new DolphinController(this);
  95     m_controller->setUrl(url);
  96     connect(m_controller, SIGNAL(requestContextMenu(const QPoint&)),
  97             this, SLOT(openContextMenu(const QPoint&)));
  98     connect(m_controller, SIGNAL(urlsDropped(const KUrl::List&, const QModelIndex&, QWidget*)),
  99             this, SLOT(dropUrls(const KUrl::List&, const QModelIndex&, QWidget*)));
 100     connect(m_controller, SIGNAL(sortingChanged(DolphinView::Sorting)),
 101             this, SLOT(updateSorting(DolphinView::Sorting)));
 102     connect(m_controller, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 103             this, SLOT(updateSortOrder(Qt::SortOrder)));
 104     connect(m_controller, SIGNAL(itemTriggered(const QModelIndex&)),
 105             this, SLOT(triggerItem(const QModelIndex&)));
 106     connect(m_controller, SIGNAL(activated()),
 107             this, SLOT(activate()));
 108     connect(m_controller, SIGNAL(itemEntered(const QModelIndex&)),
 109             this, SLOT(showHoverInformation(const QModelIndex&)));
 110     connect(m_controller, SIGNAL(viewportEntered()),
 111             this, SLOT(clearHoverInformation()));
 112
 113     createView();
 114     m_topLayout->addWidget(itemView());
 115 }
 116
 117 DolphinView::~DolphinView()
 118 {
 119 }
 120
 121 const KUrl& DolphinView::url() const
 122 {
 123     return m_controller->url();
 124 }
 125
 126 KUrl DolphinView::rootUrl() const
 127 {
 128     return isColumnViewActive() ? m_dirLister->url() : url();
 129 }
 130
 131 void DolphinView::setActive(bool active)
 132 {
 133     if (active == m_active) {
 134         return;
 135     }
 136
 137     m_active = active;
 138
 139     QColor color = KGlobalSettings::baseColor();
 140     if (active) {
 141         emit urlChanged(url());
 142         emit selectionChanged(selectedItems());
 143     } else {
 144         color.setAlpha(0);
 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
 159 bool DolphinView::isActive() const
 160 {
 161     return m_active;
 162 }
 163
 164 void DolphinView::setMode(Mode mode)
 165 {
 166     if (mode == m_mode) {
 167         return; // the wished mode is already set
 168     }
 169
 170     m_mode = mode;
 171
 172     if (isColumnViewActive()) {
 173         // When changing the mode in the column view, it makes sense
 174         // to go back to the root URL of the column view automatically.
 175         // Otherwise there it would not be possible to turn off the column view
 176         // without focusing the first column.
 177         // TODO: reactivate again after DolphinView/DolphinViewController split works
 178         //setUrl(m_dirLister->url());
 179         //m_controller->setUrl(m_dirLister->url());
 180     }
 181
 182     ViewProperties props(url());
 183     props.setViewMode(m_mode);
 184
 185     createView();
 186     startDirLister(url());
 187
 188     emit modeChanged();
 189 }
 190
 191 DolphinView::Mode DolphinView::mode() const
 192 {
 193     return m_mode;
 194 }
 195
 196 void DolphinView::setShowPreview(bool show)
 197 {
 198     ViewProperties props(url());
 199     props.setShowPreview(show);
 200
 201     m_controller->setShowPreview(show);
 202     emit showPreviewChanged();
 203
 204     startDirLister(url(), true);
 205 }
 206
 207 bool DolphinView::showPreview() const
 208 {
 209     return m_controller->showPreview();
 210 }
 211
 212 void DolphinView::setShowHiddenFiles(bool show)
 213 {
 214     if (m_dirLister->showingDotFiles() == show) {
 215         return;
 216     }
 217
 218     ViewProperties props(url());
 219     props.setShowHiddenFiles(show);
 220
 221     m_dirLister->setShowingDotFiles(show);
 222     emit showHiddenFilesChanged();
 223
 224     startDirLister(url(), 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(url());
 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 int DolphinView::contentsX() const
 281 {
 282     return itemView()->horizontalScrollBar()->value();
 283 }
 284
 285 int DolphinView::contentsY() const
 286 {
 287     return itemView()->verticalScrollBar()->value();
 288 }
 289
 290 void DolphinView::zoomIn()
 291 {
 292     m_controller->triggerZoomIn();
 293 }
 294
 295 void DolphinView::zoomOut()
 296 {
 297     m_controller->triggerZoomOut();
 298 }
 299
 300 bool DolphinView::isZoomInPossible() const
 301 {
 302     return m_controller->isZoomInPossible();
 303 }
 304
 305 bool DolphinView::isZoomOutPossible() const
 306 {
 307     return m_controller->isZoomOutPossible();
 308 }
 309
 310 void DolphinView::setSorting(Sorting sorting)
 311 {
 312     if (sorting != this->sorting()) {
 313         updateSorting(sorting);
 314     }
 315 }
 316
 317 DolphinView::Sorting DolphinView::sorting() const
 318 {
 319     return m_proxyModel->sorting();
 320 }
 321
 322 void DolphinView::setSortOrder(Qt::SortOrder order)
 323 {
 324     if (sortOrder() != order) {
 325         updateSortOrder(order);
 326     }
 327 }
 328
 329 Qt::SortOrder DolphinView::sortOrder() const
 330 {
 331     return m_proxyModel->sortOrder();
 332 }
 333
 334 void DolphinView::setAdditionalInfo(KFileItemDelegate::AdditionalInformation info)
 335 {
 336     ViewProperties props(url());
 337     props.setAdditionalInfo(info);
 338
 339     m_controller->setShowAdditionalInfo(info != KFileItemDelegate::NoInformation);
 340     m_fileItemDelegate->setAdditionalInformation(info);
 341
 342     emit additionalInfoChanged(info);
 343     startDirLister(url(), true);
 344 }
 345
 346 KFileItemDelegate::AdditionalInformation DolphinView::additionalInfo() const
 347 {
 348     return m_fileItemDelegate->additionalInformation();
 349 }
 350
 351 bool DolphinView::hasSelection() const
 352 {
 353     return itemView()->selectionModel()->hasSelection();
 354 }
 355
 356 void DolphinView::clearSelection()
 357 {
 358     itemView()->selectionModel()->clear();
 359 }
 360
 361 KFileItemList DolphinView::selectedItems() const
 362 {
 363     const QAbstractItemView* view = itemView();
 364
 365     // Our view has a selection, we will map them back to the DirModel
 366     // and then fill the KFileItemList.
 367     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 368
 369     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 370     KFileItemList itemList;
 371
 372     const QModelIndexList indexList = selection.indexes();
 373     QModelIndexList::const_iterator end = indexList.end();
 374     for (QModelIndexList::const_iterator it = indexList.begin(); it != end; ++it) {
 375         Q_ASSERT((*it).isValid());
 376
 377         KFileItem* item = m_dirModel->itemForIndex(*it);
 378         if (item != 0) {
 379             itemList.append(item);
 380         }
 381     }
 382
 383     return itemList;
 384 }
 385
 386 KUrl::List DolphinView::selectedUrls() const
 387 {
 388     KUrl::List urls;
 389
 390     const KFileItemList list = selectedItems();
 391     KFileItemList::const_iterator it = list.begin();
 392     const KFileItemList::const_iterator end = list.end();
 393     while (it != end) {
 394         KFileItem* item = *it;
 395         urls.append(item->url());
 396         ++it;
 397     }
 398
 399     return urls;
 400 }
 401
 402 KFileItem* DolphinView::fileItem(const QModelIndex index) const
 403 {
 404     const QModelIndex dirModelIndex = m_proxyModel->mapToSource(index);
 405     return m_dirModel->itemForIndex(dirModelIndex);
 406 }
 407
 408 void DolphinView::reload()
 409 {
 410     setUrl(url());
 411     startDirLister(url(), true);
 412 }
 413
 414 void DolphinView::refresh()
 415 {
 416     createView();
 417     reload();
 418 }
 419
 420 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 421 {
 422     QWidget::mouseReleaseEvent(event);
 423     setActive(true);;
 424 }
 425 void DolphinView::activate()
 426 {
 427     setActive(true);
 428 }
 429
 430 void DolphinView::triggerItem(const QModelIndex& index)
 431 {
 432     if (!isValidNameIndex(index)) {
 433         clearSelection();
 434         showHoverInformation(index);
 435         return;
 436     }
 437
 438     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 439     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 440         // items are selected by the user, hence don't trigger the
 441         // item specified by 'index'
 442         return;
 443     }
 444
 445     KFileItem* item = m_dirModel->itemForIndex(m_proxyModel->mapToSource(index));
 446     if (item == 0) {
 447         return;
 448     }
 449
 450     // Prefer the local path over the URL. This assures that the
 451     // volume space information is correct. Assuming that the URL is media:/sda1,
 452     // and the local path is /windows/C: For the URL the space info is related
 453     // to the root partition (and hence wrong) and for the local path the space
 454     // info is related to the windows partition (-> correct).
 455     const QString localPath(item->localPath());
 456     KUrl url;
 457     if (localPath.isEmpty()) {
 458         url = item->url();
 459     } else {
 460         url = localPath;
 461     }
 462
 463     if (item->isDir()) {
 464         setUrl(url);
 465     } else if (item->isFile()) {
 466         // allow to browse through ZIP and tar files
 467         KMimeType::Ptr mime = item->mimeTypePtr();
 468         if (mime->is("application/zip")) {
 469             url.setProtocol("zip");
 470             setUrl(url);
 471         } else if (mime->is("application/x-tar") ||
 472                    mime->is("application/x-tarz") ||
 473                    mime->is("application/x-bzip-compressed-tar") ||
 474                    mime->is("application/x-compressed-tar") ||
 475                    mime->is("application/x-tzo")) {
 476             url.setProtocol("tar");
 477             setUrl(url);
 478         } else {
 479             item->run();
 480         }
 481     } else {
 482         item->run();
 483     }
 484 }
 485
 486 void DolphinView::generatePreviews(const KFileItemList& items)
 487 {
 488     if (m_controller->showPreview()) {
 489
 490         // Must turn QList<KFileItem *> to QList<KFileItem>...
 491         QList<KFileItem> itemsToPreview;
 492         foreach( KFileItem* it, items )
 493             itemsToPreview.append( *it );
 494
 495         KIO::PreviewJob* job = KIO::filePreview(itemsToPreview, 128);
 496         connect(job, SIGNAL(gotPreview(const KFileItem&, const QPixmap&)),
 497                 this, SLOT(showPreview(const KFileItem&, const QPixmap&)));
 498     }
 499 }
 500
 501 void DolphinView::showPreview(const KFileItem& item, const QPixmap& pixmap)
 502 {
 503     Q_ASSERT(!item.isNull());
 504     if (item.url().directory() != m_dirLister->url().path()) {
 505         // the preview job is still working on items of an older URL, hence
 506         // the item is not part of the directory model anymore
 507         return;
 508     }
 509
 510     const QModelIndex idx = m_dirModel->indexForItem(item);
 511     if (idx.isValid() && (idx.column() == 0)) {
 512         const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 513         if (KonqMimeData::decodeIsCutSelection(mimeData) && isCutItem(item)) {
 514             KIconEffect iconEffect;
 515             const QPixmap cutPixmap = iconEffect.apply(pixmap, K3Icon::Desktop, K3Icon::DisabledState);
 516             m_dirModel->setData(idx, QIcon(cutPixmap), Qt::DecorationRole);
 517         } else {
 518             m_dirModel->setData(idx, QIcon(pixmap), Qt::DecorationRole);
 519         }
 520     }
 521 }
 522
 523 void DolphinView::restoreContentsPos()
 524 {
 525     m_blockContentsMovedSignal = false;
 526     if (!url().isEmpty()) {
 527         QAbstractItemView* view = itemView();
 528         // TODO #1: view->setCurrentItem(m_urlNavigator->currentFileName());
 529         // TODO #2: temporary deactivated due to DolphinView/DolphinViewController split
 530         //QPoint pos = m_urlNavigator->savedPosition();
 531         QPoint pos(0, 0);
 532         view->horizontalScrollBar()->setValue(pos.x());
 533         view->verticalScrollBar()->setValue(pos.y());
 534     }
 535 }
 536
 537 void DolphinView::emitSelectionChangedSignal()
 538 {
 539     emit selectionChanged(DolphinView::selectedItems());
 540 }
 541
 542 void DolphinView::startDirLister(const KUrl& url, bool reload)
 543 {
 544     if (!url.isValid()) {
 545         // TODO: temporary deactivated due to DolphinView/DolphinViewController split
 546
 547         //const QString location(url.pathOrUrl());
 548         //if (location.isEmpty()) {
 549         //    m_statusBar->setMessage(i18n("The location is empty."), DolphinStatusBar::Error);
 550         //} else {
 551         //    m_statusBar->setMessage(i18n("The location '%1' is invalid.", location),
 552         //                            DolphinStatusBar::Error);
 553         //}
 554         return;
 555     }
 556
 557     m_cutItemsCache.clear();
 558     m_blockContentsMovedSignal = true;
 559     m_dirLister->stop();
 560
 561     bool openDir = true;
 562     bool keepOldDirs = isColumnViewActive() && !m_initializeColumnView;
 563     m_initializeColumnView = false;
 564
 565     if (keepOldDirs) {
 566         if (reload) {
 567             keepOldDirs = false;
 568
 569             const KUrl& dirListerUrl = m_dirLister->url();
 570             if (dirListerUrl.isValid()) {
 571                 const KUrl::List dirs = m_dirLister->directories();
 572                 KUrl url;
 573                 foreach(url, dirs) {
 574                     m_dirLister->updateDirectory(url);
 575                 }
 576                 openDir = false;
 577             }
 578         } else if (m_dirLister->directories().contains(url)) {
 579             // The dir lister contains the directory already, so
 580             // KDirLister::openUrl() may not been invoked twice.
 581             m_dirLister->updateDirectory(url);
 582             openDir = false;
 583         } else {
 584             const KUrl& dirListerUrl = m_dirLister->url();
 585             if ((dirListerUrl == url) || !m_dirLister->url().isParentOf(url)) {
 586                 // The current URL is not a child of the dir lister
 587                 // URL. This may happen when e. g. a bookmark has been selected
 588                 // and hence the view must be reset.
 589                 keepOldDirs = false;
 590             }
 591         }
 592     }
 593
 594     if (openDir) {
 595         m_dirLister->openUrl(url, keepOldDirs, reload);
 596     }
 597 }
 598
 599 void DolphinView::setUrl(const KUrl& url)
 600 {
 601     if (m_controller->url() == url) {
 602         return;
 603     }
 604
 605     m_controller->setUrl(url);
 606
 607     const ViewProperties props(url);
 608
 609     const Mode mode = props.viewMode();
 610     bool changeMode = (m_mode != mode);
 611     if (changeMode && isColumnViewActive()) {
 612         // The column view is active. Only change the
 613         // mode if the current URL is no child of the column view.
 614         if (m_dirLister->url().isParentOf(url)) {
 615             changeMode = false;
 616         }
 617     }
 618
 619     if (changeMode) {
 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
 633     const bool showHiddenFiles = props.showHiddenFiles();
 634     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
 635         m_dirLister->setShowingDotFiles(showHiddenFiles);
 636         emit showHiddenFilesChanged();
 637     }
 638
 639     const bool categorized = props.categorizedSorting();
 640     if (categorized != categorizedSorting()) {
 641         if (supportsCategorizedSorting()) {
 642             Q_ASSERT(m_iconsView != 0);
 643             if (categorized) {
 644                 Q_ASSERT(m_iconsView->itemCategorizer() == 0);
 645                 m_iconsView->setItemCategorizer(new DolphinItemCategorizer());
 646             } else {
 647                 KItemCategorizer* categorizer = m_iconsView->itemCategorizer();
 648                 m_iconsView->setItemCategorizer(0);
 649                 delete categorizer;
 650             }
 651         }
 652         emit categorizedSortingChanged();
 653     }
 654
 655     const DolphinView::Sorting sorting = props.sorting();
 656     if (sorting != m_proxyModel->sorting()) {
 657         m_proxyModel->setSorting(sorting);
 658         emit sortingChanged(sorting);
 659     }
 660
 661     const Qt::SortOrder sortOrder = props.sortOrder();
 662     if (sortOrder != m_proxyModel->sortOrder()) {
 663         m_proxyModel->setSortOrder(sortOrder);
 664         emit sortOrderChanged(sortOrder);
 665     }
 666
 667     KFileItemDelegate::AdditionalInformation info = props.additionalInfo();
 668     if (info != m_fileItemDelegate->additionalInformation()) {
 669         m_controller->setShowAdditionalInfo(info != KFileItemDelegate::NoInformation);
 670         m_fileItemDelegate->setAdditionalInformation(info);
 671         emit additionalInfoChanged(info);
 672     }
 673
 674     const bool showPreview = props.showPreview();
 675     if (showPreview != m_controller->showPreview()) {
 676         m_controller->setShowPreview(showPreview);
 677         emit showPreviewChanged();
 678     }
 679
 680     startDirLister(url);
 681     emit urlChanged(url);
 682
 683     // TODO: temporary deactivated due to DolphinView/DolphinViewController split
 684     //m_statusBar->clear();
 685 }
 686
 687 void DolphinView::changeSelection(const KFileItemList& selection)
 688 {
 689     clearSelection();
 690     if (selection.isEmpty()) {
 691         return;
 692     }
 693     const KUrl& baseUrl = url();
 694     KUrl url;
 695     QItemSelection new_selection;
 696     foreach(KFileItem* item, selection) {
 697         url = item->url().upUrl();
 698         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 699             QModelIndex index = m_proxyModel->mapFromSource(m_dirModel->indexForItem(*item));
 700             new_selection.select(index, index);
 701         }
 702     }
 703     itemView()->selectionModel()->select(new_selection,
 704                                          QItemSelectionModel::ClearAndSelect
 705                                          | QItemSelectionModel::Current);
 706 }
 707
 708 void DolphinView::openContextMenu(const QPoint& pos)
 709 {
 710     KFileItem* item = 0;
 711
 712     const QModelIndex index = itemView()->indexAt(pos);
 713     if (isValidNameIndex(index)) {
 714         item = fileItem(index);
 715     }
 716
 717     emit requestContextMenu(item, url());
 718 }
 719
 720 void DolphinView::dropUrls(const KUrl::List& urls,
 721                            const QModelIndex& index,
 722                            QWidget* source)
 723 {
 724     KFileItem* directory = 0;
 725     if (isValidNameIndex(index)) {
 726         KFileItem* item = fileItem(index);
 727         Q_ASSERT(item != 0);
 728         if (item->isDir()) {
 729             // the URLs are dropped above a directory
 730             directory = item;
 731         }
 732     }
 733
 734     if ((directory == 0) && (source == itemView())) {
 735         // The dropping is done into the same viewport where
 736         // the dragging has been started. Just ignore this...
 737         return;
 738     }
 739
 740     const KUrl& destination = (directory == 0) ?
 741                               url() : directory->url();
 742     dropUrls(urls, destination);
 743 }
 744
 745 void DolphinView::dropUrls(const KUrl::List& urls,
 746                            const KUrl& destination)
 747 {
 748     emit urlsDropped(urls, destination);
 749 }
 750
 751 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 752 {
 753     ViewProperties props(url());
 754     props.setSorting(sorting);
 755
 756     m_proxyModel->setSorting(sorting);
 757
 758     emit sortingChanged(sorting);
 759 }
 760
 761 void DolphinView::updateSortOrder(Qt::SortOrder order)
 762 {
 763     ViewProperties props(url());
 764     props.setSortOrder(order);
 765
 766     m_proxyModel->setSortOrder(order);
 767
 768     emit sortOrderChanged(order);
 769 }
 770
 771 void DolphinView::emitContentsMoved()
 772 {
 773     if (!m_blockContentsMovedSignal) {
 774         emit contentsMoved(contentsX(), contentsY());
 775     }
 776 }
 777
 778 void DolphinView::updateCutItems()
 779 {
 780     // restore the icons of all previously selected items to the
 781     // original state...
 782     QList<CutItem>::const_iterator it = m_cutItemsCache.begin();
 783     QList<CutItem>::const_iterator end = m_cutItemsCache.end();
 784     while (it != end) {
 785         const QModelIndex index = m_dirModel->indexForUrl((*it).url);
 786         if (index.isValid()) {
 787             m_dirModel->setData(index, QIcon((*it).pixmap), Qt::DecorationRole);
 788         }
 789         ++it;
 790     }
 791     m_cutItemsCache.clear();
 792
 793     // ... and apply an item effect to all currently cut items
 794     applyCutItemEffect();
 795 }
 796
 797 void DolphinView::showHoverInformation(const QModelIndex& index)
 798 {
 799     if (hasSelection()) {
 800         return;
 801     }
 802
 803     const KFileItem* item = fileItem(index);
 804     if (item != 0) {
 805         emit requestItemInfo(item->url());
 806     }
 807 }
 808
 809 void DolphinView::clearHoverInformation()
 810 {
 811     emit requestItemInfo(KUrl());
 812 }
 813
 814
 815 void DolphinView::createView()
 816 {
 817     // delete current view
 818     QAbstractItemView* view = itemView();
 819     if (view != 0) {
 820         m_topLayout->removeWidget(view);
 821         view->close();
 822         if (view == m_iconsView) {
 823             KItemCategorizer* categorizer = m_iconsView->itemCategorizer();
 824             m_iconsView->setItemCategorizer(0);
 825             delete categorizer;
 826         }
 827         view->deleteLater();
 828         view = 0;
 829         m_iconsView = 0;
 830         m_detailsView = 0;
 831         m_columnView = 0;
 832         m_fileItemDelegate = 0;
 833     }
 834
 835     Q_ASSERT(m_iconsView == 0);
 836     Q_ASSERT(m_detailsView == 0);
 837     Q_ASSERT(m_columnView == 0);
 838
 839     // ... and recreate it representing the current mode
 840     switch (m_mode) {
 841     case IconsView:
 842         m_iconsView = new DolphinIconsView(this, m_controller);
 843         view = m_iconsView;
 844         break;
 845
 846     case DetailsView:
 847         m_detailsView = new DolphinDetailsView(this, m_controller);
 848         view = m_detailsView;
 849         break;
 850
 851     case ColumnView:
 852         m_columnView = new DolphinColumnView(this, m_controller);
 853         view = m_columnView;
 854         break;
 855     }
 856
 857     Q_ASSERT(view != 0);
 858
 859     m_fileItemDelegate = new KFileItemDelegate(view);
 860     view->setItemDelegate(m_fileItemDelegate);
 861
 862     view->setModel(m_proxyModel);
 863     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
 864
 865     new KMimeTypeResolver(view, m_dirModel);
 866     m_topLayout->insertWidget(1, view);
 867
 868     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
 869             this, SLOT(emitSelectionChangedSignal()));
 870     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
 871             this, SLOT(emitContentsMoved()));
 872     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
 873             this, SLOT(emitContentsMoved()));
 874 }
 875
 876 void DolphinView::selectAll(QItemSelectionModel::SelectionFlags flags)
 877 {
 878     QItemSelectionModel* selectionModel = itemView()->selectionModel();
 879     const QAbstractItemModel* itemModel = selectionModel->model();
 880
 881     const QModelIndex topLeft = itemModel->index(0, 0);
 882     const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 883                                     itemModel->columnCount() - 1);
 884
 885     QItemSelection selection(topLeft, bottomRight);
 886     selectionModel->select(selection, flags);
 887 }
 888
 889 QAbstractItemView* DolphinView::itemView() const
 890 {
 891     if (m_detailsView != 0) {
 892         return m_detailsView;
 893     } else if (m_columnView != 0) {
 894         return m_columnView;
 895     }
 896
 897     return m_iconsView;
 898 }
 899
 900 bool DolphinView::isValidNameIndex(const QModelIndex& index) const
 901 {
 902     return index.isValid() && (index.column() == KDirModel::Name);
 903 }
 904
 905 bool DolphinView::isCutItem(const KFileItem& item) const
 906 {
 907     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 908     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
 909
 910     const KUrl& itemUrl = item.url();
 911     KUrl::List::const_iterator it = cutUrls.begin();
 912     const KUrl::List::const_iterator end = cutUrls.end();
 913     while (it != end) {
 914         if (*it == itemUrl) {
 915             return true;
 916         }
 917         ++it;
 918     }
 919
 920     return false;
 921 }
 922
 923 void DolphinView::applyCutItemEffect()
 924 {
 925     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 926     if (!KonqMimeData::decodeIsCutSelection(mimeData)) {
 927         return;
 928     }
 929
 930     KFileItemList items(m_dirLister->items());
 931     KFileItemList::const_iterator it = items.begin();
 932     const KFileItemList::const_iterator end = items.end();
 933     while (it != end) {
 934         KFileItem* item = *it;
 935         if (isCutItem(*item)) {
 936             const QModelIndex index = m_dirModel->indexForItem(*item);
 937             const KFileItem* item = m_dirModel->itemForIndex(index);
 938             const QVariant value = m_dirModel->data(index, Qt::DecorationRole);
 939             if ((value.type() == QVariant::Icon) && (item != 0)) {
 940                 const QIcon icon(qvariant_cast<QIcon>(value));
 941                 QPixmap pixmap = icon.pixmap(128, 128);
 942
 943                 // remember current pixmap for the item to be able
 944                 // to restore it when other items get cut
 945                 CutItem cutItem;
 946                 cutItem.url = item->url();
 947                 cutItem.pixmap = pixmap;
 948                 m_cutItemsCache.append(cutItem);
 949
 950                 // apply icon effect to the cut item
 951                 KIconEffect iconEffect;
 952                 pixmap = iconEffect.apply(pixmap, K3Icon::Desktop, K3Icon::DisabledState);
 953                 m_dirModel->setData(index, QIcon(pixmap), Qt::DecorationRole);
 954             }
 955         }
 956         ++it;
 957     }
 958 }
 959
 960 #include "dolphinview.moc"