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     QWidget(parent),
  63     m_active(true),
  64     m_blockContentsMovedSignal(false),
  65     m_initializeColumnView(false),
  66     m_mode(mode),
  67     m_topLayout(0),
  68     m_controller(0),
  69     m_iconsView(0),
  70     m_detailsView(0),
  71     m_columnView(0),
  72     m_fileItemDelegate(0),
  73     m_dirModel(dirModel),
  74     m_dirLister(dirLister),
  75     m_proxyModel(proxyModel)
  76 {
  77     setFocusPolicy(Qt::StrongFocus);
  78     m_topLayout = new QVBoxLayout(this);
  79     m_topLayout->setSpacing(0);
  80     m_topLayout->setMargin(0);
  81
  82     QClipboard* clipboard = QApplication::clipboard();
  83     connect(clipboard, SIGNAL(dataChanged()),
  84             this, SLOT(updateCutItems()));
  85
  86     connect(m_dirLister, SIGNAL(completed()),
  87             this, SLOT(restoreContentsPos()));
  88     connect(m_dirLister, SIGNAL(completed()),
  89             this, SLOT(updateCutItems()));
  90     connect(m_dirLister, SIGNAL(newItems(const KFileItemList&)),
  91             this, SLOT(generatePreviews(const KFileItemList&)));
  92
  93     m_controller = new DolphinController(this);
  94     m_controller->setUrl(url);
  95     connect(m_controller, SIGNAL(requestContextMenu(const QPoint&)),
  96             this, SLOT(openContextMenu(const QPoint&)));
  97     connect(m_controller, SIGNAL(urlsDropped(const KUrl::List&, const QModelIndex&, QWidget*)),
  98             this, SLOT(dropUrls(const KUrl::List&, const QModelIndex&, QWidget*)));
  99     connect(m_controller, SIGNAL(sortingChanged(DolphinView::Sorting)),
 100             this, SLOT(updateSorting(DolphinView::Sorting)));
 101     connect(m_controller, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 102             this, SLOT(updateSortOrder(Qt::SortOrder)));
 103     connect(m_controller, SIGNAL(itemTriggered(const QModelIndex&)),
 104             this, SLOT(triggerItem(const QModelIndex&)));
 105     connect(m_controller, SIGNAL(activated()),
 106             this, SLOT(activate()));
 107     connect(m_controller, SIGNAL(itemEntered(const QModelIndex&)),
 108             this, SLOT(showHoverInformation(const QModelIndex&)));
 109     connect(m_controller, SIGNAL(viewportEntered()),
 110             this, SLOT(clearHoverInformation()));
 111
 112     createView();
 113     m_topLayout->addWidget(itemView());
 114 }
 115
 116 DolphinView::~DolphinView()
 117 {
 118 }
 119
 120 const KUrl& DolphinView::url() const
 121 {
 122     return m_controller->url();
 123 }
 124
 125 KUrl DolphinView::rootUrl() const
 126 {
 127     return isColumnViewActive() ? m_dirLister->url() : url();
 128 }
 129
 130 void DolphinView::setActive(bool active)
 131 {
 132     if (active == m_active) {
 133         return;
 134     }
 135
 136     m_active = active;
 137
 138     QColor color = KGlobalSettings::baseColor();
 139     if (active) {
 140         emit urlChanged(url());
 141         emit selectionChanged(selectedItems());
 142     } else {
 143         color.setAlpha(0);
 144     }
 145
 146     QWidget* viewport = itemView()->viewport();
 147     QPalette palette;
 148     palette.setColor(viewport->backgroundRole(), color);
 149     viewport->setPalette(palette);
 150
 151     update();
 152
 153     if (active) {
 154         emit activated();
 155     }
 156 }
 157
 158 bool DolphinView::isActive() const
 159 {
 160     return m_active;
 161 }
 162
 163 void DolphinView::setMode(Mode mode)
 164 {
 165     if (mode == m_mode) {
 166         return; // the wished mode is already set
 167     }
 168
 169     m_mode = mode;
 170
 171     if (isColumnViewActive()) {
 172         // When changing the mode in the column view, it makes sense
 173         // to go back to the root URL of the column view automatically.
 174         // Otherwise there it would not be possible to turn off the column view
 175         // without focusing the first column.
 176         // TODO: reactivate again after DolphinView/DolphinViewController split works
 177         //setUrl(m_dirLister->url());
 178         //m_controller->setUrl(m_dirLister->url());
 179     }
 180
 181     ViewProperties props(url());
 182     props.setViewMode(m_mode);
 183
 184     createView();
 185     startDirLister(url());
 186
 187     emit modeChanged();
 188 }
 189
 190 DolphinView::Mode DolphinView::mode() const
 191 {
 192     return m_mode;
 193 }
 194
 195 void DolphinView::setShowPreview(bool show)
 196 {
 197     ViewProperties props(url());
 198     props.setShowPreview(show);
 199
 200     m_controller->setShowPreview(show);
 201     emit showPreviewChanged();
 202
 203     startDirLister(url(), 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     ViewProperties props(url());
 218     props.setShowHiddenFiles(show);
 219
 220     m_dirLister->setShowingDotFiles(show);
 221     emit showHiddenFilesChanged();
 222
 223     startDirLister(url(), true);
 224 }
 225
 226 bool DolphinView::showHiddenFiles() const
 227 {
 228     return m_dirLister->showingDotFiles();
 229 }
 230
 231 void DolphinView::setCategorizedSorting(bool categorized)
 232 {
 233     if (!supportsCategorizedSorting() || (categorized == categorizedSorting())) {
 234         return;
 235     }
 236
 237     Q_ASSERT(m_iconsView != 0);
 238     if (categorized) {
 239         Q_ASSERT(m_iconsView->itemCategorizer() == 0);
 240         m_iconsView->setItemCategorizer(new DolphinItemCategorizer());
 241     } else {
 242         KItemCategorizer* categorizer = m_iconsView->itemCategorizer();
 243         m_iconsView->setItemCategorizer(0);
 244         delete categorizer;
 245     }
 246
 247     ViewProperties props(url());
 248     props.setCategorizedSorting(categorized);
 249     props.save();
 250
 251     emit categorizedSortingChanged();
 252 }
 253
 254 bool DolphinView::categorizedSorting() const
 255 {
 256     if (!supportsCategorizedSorting()) {
 257         return false;
 258     }
 259
 260     Q_ASSERT(m_iconsView != 0);
 261     return m_iconsView->itemCategorizer() != 0;
 262 }
 263
 264 bool DolphinView::supportsCategorizedSorting() const
 265 {
 266     return m_iconsView != 0;
 267 }
 268
 269 void DolphinView::selectAll()
 270 {
 271     selectAll(QItemSelectionModel::Select);
 272 }
 273
 274 void DolphinView::invertSelection()
 275 {
 276     selectAll(QItemSelectionModel::Toggle);
 277 }
 278
 279 int DolphinView::contentsX() const
 280 {
 281     return itemView()->horizontalScrollBar()->value();
 282 }
 283
 284 int DolphinView::contentsY() const
 285 {
 286     return itemView()->verticalScrollBar()->value();
 287 }
 288
 289 void DolphinView::zoomIn()
 290 {
 291     m_controller->triggerZoomIn();
 292 }
 293
 294 void DolphinView::zoomOut()
 295 {
 296     m_controller->triggerZoomOut();
 297 }
 298
 299 bool DolphinView::isZoomInPossible() const
 300 {
 301     return m_controller->isZoomInPossible();
 302 }
 303
 304 bool DolphinView::isZoomOutPossible() const
 305 {
 306     return m_controller->isZoomOutPossible();
 307 }
 308
 309 void DolphinView::setSorting(Sorting sorting)
 310 {
 311     if (sorting != this->sorting()) {
 312         updateSorting(sorting);
 313     }
 314 }
 315
 316 DolphinView::Sorting DolphinView::sorting() const
 317 {
 318     return m_proxyModel->sorting();
 319 }
 320
 321 void DolphinView::setSortOrder(Qt::SortOrder order)
 322 {
 323     if (sortOrder() != order) {
 324         updateSortOrder(order);
 325     }
 326 }
 327
 328 Qt::SortOrder DolphinView::sortOrder() const
 329 {
 330     return m_proxyModel->sortOrder();
 331 }
 332
 333 void DolphinView::setAdditionalInfo(KFileItemDelegate::AdditionalInformation info)
 334 {
 335     ViewProperties props(url());
 336     props.setAdditionalInfo(info);
 337
 338     m_controller->setShowAdditionalInfo(info != KFileItemDelegate::NoInformation);
 339     m_fileItemDelegate->setAdditionalInformation(info);
 340
 341     emit additionalInfoChanged(info);
 342     startDirLister(url(), true);
 343 }
 344
 345 KFileItemDelegate::AdditionalInformation DolphinView::additionalInfo() const
 346 {
 347     return m_fileItemDelegate->additionalInformation();
 348 }
 349
 350 bool DolphinView::hasSelection() const
 351 {
 352     return itemView()->selectionModel()->hasSelection();
 353 }
 354
 355 void DolphinView::clearSelection()
 356 {
 357     itemView()->selectionModel()->clear();
 358 }
 359
 360 KFileItemList DolphinView::selectedItems() const
 361 {
 362     const QAbstractItemView* view = itemView();
 363
 364     // Our view has a selection, we will map them back to the DirModel
 365     // and then fill the KFileItemList.
 366     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 367
 368     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 369     KFileItemList itemList;
 370
 371     const QModelIndexList indexList = selection.indexes();
 372     QModelIndexList::const_iterator end = indexList.end();
 373     for (QModelIndexList::const_iterator it = indexList.begin(); it != end; ++it) {
 374         Q_ASSERT((*it).isValid());
 375
 376         KFileItem* item = m_dirModel->itemForIndex(*it);
 377         if (item != 0) {
 378             itemList.append(item);
 379         }
 380     }
 381
 382     return itemList;
 383 }
 384
 385 KUrl::List DolphinView::selectedUrls() const
 386 {
 387     KUrl::List urls;
 388
 389     const KFileItemList list = selectedItems();
 390     KFileItemList::const_iterator it = list.begin();
 391     const KFileItemList::const_iterator end = list.end();
 392     while (it != end) {
 393         KFileItem* item = *it;
 394         urls.append(item->url());
 395         ++it;
 396     }
 397
 398     return urls;
 399 }
 400
 401 KFileItem* DolphinView::fileItem(const QModelIndex index) const
 402 {
 403     const QModelIndex dirModelIndex = m_proxyModel->mapToSource(index);
 404     return m_dirModel->itemForIndex(dirModelIndex);
 405 }
 406
 407 void DolphinView::reload()
 408 {
 409     setUrl(url());
 410     startDirLister(url(), true);
 411 }
 412
 413 void DolphinView::refresh()
 414 {
 415     createView();
 416     reload();
 417 }
 418
 419 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 420 {
 421     QWidget::mouseReleaseEvent(event);
 422     setActive(true);;
 423 }
 424 void DolphinView::activate()
 425 {
 426     setActive(true);
 427 }
 428
 429 void DolphinView::triggerItem(const QModelIndex& index)
 430 {
 431     if (!isValidNameIndex(index)) {
 432         clearSelection();
 433         showHoverInformation(index);
 434         return;
 435     }
 436
 437     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 438     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 439         // items are selected by the user, hence don't trigger the
 440         // item specified by 'index'
 441         return;
 442     }
 443
 444     KFileItem* item = m_dirModel->itemForIndex(m_proxyModel->mapToSource(index));
 445     if (item == 0) {
 446         return;
 447     }
 448
 449     // Prefer the local path over the URL. This assures that the
 450     // volume space information is correct. Assuming that the URL is media:/sda1,
 451     // and the local path is /windows/C: For the URL the space info is related
 452     // to the root partition (and hence wrong) and for the local path the space
 453     // info is related to the windows partition (-> correct).
 454     const QString localPath(item->localPath());
 455     KUrl url;
 456     if (localPath.isEmpty()) {
 457         url = item->url();
 458     } else {
 459         url = localPath;
 460     }
 461
 462     if (item->isDir()) {
 463         setUrl(url);
 464     } else if (item->isFile()) {
 465         // allow to browse through ZIP and tar files
 466         KMimeType::Ptr mime = item->mimeTypePtr();
 467         if (mime->is("application/zip")) {
 468             url.setProtocol("zip");
 469             setUrl(url);
 470         } else if (mime->is("application/x-tar") ||
 471                    mime->is("application/x-tarz") ||
 472                    mime->is("application/x-bzip-compressed-tar") ||
 473                    mime->is("application/x-compressed-tar") ||
 474                    mime->is("application/x-tzo")) {
 475             url.setProtocol("tar");
 476             setUrl(url);
 477         } else {
 478             item->run();
 479         }
 480     } else {
 481         item->run();
 482     }
 483 }
 484
 485 void DolphinView::generatePreviews(const KFileItemList& items)
 486 {
 487     if (m_controller->showPreview()) {
 488
 489         // Must turn QList<KFileItem *> to QList<KFileItem>...
 490         QList<KFileItem> itemsToPreview;
 491         foreach( KFileItem* it, items )
 492             itemsToPreview.append( *it );
 493
 494         KIO::PreviewJob* job = KIO::filePreview(itemsToPreview, 128);
 495         connect(job, SIGNAL(gotPreview(const KFileItem&, const QPixmap&)),
 496                 this, SLOT(showPreview(const KFileItem&, const QPixmap&)));
 497     }
 498 }
 499
 500 void DolphinView::showPreview(const KFileItem& item, const QPixmap& pixmap)
 501 {
 502     Q_ASSERT(!item.isNull());
 503     if (item.url().directory() != m_dirLister->url().path()) {
 504         // the preview job is still working on items of an older URL, hence
 505         // the item is not part of the directory model anymore
 506         return;
 507     }
 508
 509     const QModelIndex idx = m_dirModel->indexForItem(item);
 510     if (idx.isValid() && (idx.column() == 0)) {
 511         const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 512         if (KonqMimeData::decodeIsCutSelection(mimeData) && isCutItem(item)) {
 513             KIconEffect iconEffect;
 514             const QPixmap cutPixmap = iconEffect.apply(pixmap, K3Icon::Desktop, K3Icon::DisabledState);
 515             m_dirModel->setData(idx, QIcon(cutPixmap), Qt::DecorationRole);
 516         } else {
 517             m_dirModel->setData(idx, QIcon(pixmap), Qt::DecorationRole);
 518         }
 519     }
 520 }
 521
 522 void DolphinView::restoreContentsPos()
 523 {
 524     m_blockContentsMovedSignal = false;
 525     if (!url().isEmpty()) {
 526         QAbstractItemView* view = itemView();
 527         // TODO #1: view->setCurrentItem(m_urlNavigator->currentFileName());
 528         // TODO #2: temporary deactivated due to DolphinView/DolphinViewController split
 529         //QPoint pos = m_urlNavigator->savedPosition();
 530         QPoint pos(0, 0);
 531         view->horizontalScrollBar()->setValue(pos.x());
 532         view->verticalScrollBar()->setValue(pos.y());
 533     }
 534 }
 535
 536 void DolphinView::emitSelectionChangedSignal()
 537 {
 538     emit selectionChanged(DolphinView::selectedItems());
 539 }
 540
 541 void DolphinView::startDirLister(const KUrl& url, bool reload)
 542 {
 543     if (!url.isValid()) {
 544         const QString location(url.pathOrUrl());
 545         if (location.isEmpty()) {
 546             emit errorMessage(i18n("The location is empty."));
 547         } else {
 548             emit errorMessage(i18n("The location '%1' is invalid.", location));
 549         }
 550         return;
 551     }
 552
 553     m_cutItemsCache.clear();
 554     m_blockContentsMovedSignal = true;
 555     m_dirLister->stop();
 556
 557     bool openDir = true;
 558     bool keepOldDirs = isColumnViewActive() && !m_initializeColumnView;
 559     m_initializeColumnView = false;
 560
 561     if (keepOldDirs) {
 562         if (reload) {
 563             keepOldDirs = false;
 564
 565             const KUrl& dirListerUrl = m_dirLister->url();
 566             if (dirListerUrl.isValid()) {
 567                 const KUrl::List dirs = m_dirLister->directories();
 568                 KUrl url;
 569                 foreach(url, dirs) {
 570                     m_dirLister->updateDirectory(url);
 571                 }
 572                 openDir = false;
 573             }
 574         } else if (m_dirLister->directories().contains(url)) {
 575             // The dir lister contains the directory already, so
 576             // KDirLister::openUrl() may not been invoked twice.
 577             m_dirLister->updateDirectory(url);
 578             openDir = false;
 579         } else {
 580             const KUrl& dirListerUrl = m_dirLister->url();
 581             if ((dirListerUrl == url) || !m_dirLister->url().isParentOf(url)) {
 582                 // The current URL is not a child of the dir lister
 583                 // URL. This may happen when e. g. a bookmark has been selected
 584                 // and hence the view must be reset.
 585                 keepOldDirs = false;
 586             }
 587         }
 588     }
 589
 590     if (openDir) {
 591         m_dirLister->openUrl(url, keepOldDirs, reload);
 592     }
 593 }
 594
 595 void DolphinView::setUrl(const KUrl& url)
 596 {
 597     if (m_controller->url() == url) {
 598         return;
 599     }
 600
 601     m_controller->setUrl(url);
 602
 603     const ViewProperties props(url);
 604
 605     const Mode mode = props.viewMode();
 606     bool changeMode = (m_mode != mode);
 607     if (changeMode && isColumnViewActive()) {
 608         // The column view is active. Only change the
 609         // mode if the current URL is no child of the column view.
 610         if (m_dirLister->url().isParentOf(url)) {
 611             changeMode = false;
 612         }
 613     }
 614
 615     if (changeMode) {
 616         m_mode = mode;
 617         createView();
 618         emit modeChanged();
 619
 620         if (m_mode == ColumnView) {
 621             // The mode has been changed to the Column View. When starting the dir
 622             // lister with DolphinView::startDirLister() it is important to give a
 623             // hint that the dir lister may not keep the current directory
 624             // although this is the default for showing a hierarchy.
 625             m_initializeColumnView = true;
 626         }
 627     }
 628
 629     const bool showHiddenFiles = props.showHiddenFiles();
 630     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
 631         m_dirLister->setShowingDotFiles(showHiddenFiles);
 632         emit showHiddenFilesChanged();
 633     }
 634
 635     const bool categorized = props.categorizedSorting();
 636     if (categorized != categorizedSorting()) {
 637         if (supportsCategorizedSorting()) {
 638             Q_ASSERT(m_iconsView != 0);
 639             if (categorized) {
 640                 Q_ASSERT(m_iconsView->itemCategorizer() == 0);
 641                 m_iconsView->setItemCategorizer(new DolphinItemCategorizer());
 642             } else {
 643                 KItemCategorizer* categorizer = m_iconsView->itemCategorizer();
 644                 m_iconsView->setItemCategorizer(0);
 645                 delete categorizer;
 646             }
 647         }
 648         emit categorizedSortingChanged();
 649     }
 650
 651     const DolphinView::Sorting sorting = props.sorting();
 652     if (sorting != m_proxyModel->sorting()) {
 653         m_proxyModel->setSorting(sorting);
 654         emit sortingChanged(sorting);
 655     }
 656
 657     const Qt::SortOrder sortOrder = props.sortOrder();
 658     if (sortOrder != m_proxyModel->sortOrder()) {
 659         m_proxyModel->setSortOrder(sortOrder);
 660         emit sortOrderChanged(sortOrder);
 661     }
 662
 663     KFileItemDelegate::AdditionalInformation info = props.additionalInfo();
 664     if (info != m_fileItemDelegate->additionalInformation()) {
 665         m_controller->setShowAdditionalInfo(info != KFileItemDelegate::NoInformation);
 666         m_fileItemDelegate->setAdditionalInformation(info);
 667         emit additionalInfoChanged(info);
 668     }
 669
 670     const bool showPreview = props.showPreview();
 671     if (showPreview != m_controller->showPreview()) {
 672         m_controller->setShowPreview(showPreview);
 673         emit showPreviewChanged();
 674     }
 675
 676     startDirLister(url);
 677     emit urlChanged(url);
 678 }
 679
 680 void DolphinView::changeSelection(const KFileItemList& selection)
 681 {
 682     clearSelection();
 683     if (selection.isEmpty()) {
 684         return;
 685     }
 686     const KUrl& baseUrl = url();
 687     KUrl url;
 688     QItemSelection new_selection;
 689     foreach(KFileItem* item, selection) {
 690         url = item->url().upUrl();
 691         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 692             QModelIndex index = m_proxyModel->mapFromSource(m_dirModel->indexForItem(*item));
 693             new_selection.select(index, index);
 694         }
 695     }
 696     itemView()->selectionModel()->select(new_selection,
 697                                          QItemSelectionModel::ClearAndSelect
 698                                          | QItemSelectionModel::Current);
 699 }
 700
 701 void DolphinView::openContextMenu(const QPoint& pos)
 702 {
 703     KFileItem* item = 0;
 704
 705     const QModelIndex index = itemView()->indexAt(pos);
 706     if (isValidNameIndex(index)) {
 707         item = fileItem(index);
 708     }
 709
 710     emit requestContextMenu(item, url());
 711 }
 712
 713 void DolphinView::dropUrls(const KUrl::List& urls,
 714                            const QModelIndex& index,
 715                            QWidget* source)
 716 {
 717     KFileItem* directory = 0;
 718     if (isValidNameIndex(index)) {
 719         KFileItem* item = fileItem(index);
 720         Q_ASSERT(item != 0);
 721         if (item->isDir()) {
 722             // the URLs are dropped above a directory
 723             directory = item;
 724         }
 725     }
 726
 727     if ((directory == 0) && (source == itemView())) {
 728         // The dropping is done into the same viewport where
 729         // the dragging has been started. Just ignore this...
 730         return;
 731     }
 732
 733     const KUrl& destination = (directory == 0) ?
 734                               url() : directory->url();
 735     dropUrls(urls, destination);
 736 }
 737
 738 void DolphinView::dropUrls(const KUrl::List& urls,
 739                            const KUrl& destination)
 740 {
 741     emit urlsDropped(urls, destination);
 742 }
 743
 744 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 745 {
 746     ViewProperties props(url());
 747     props.setSorting(sorting);
 748
 749     m_proxyModel->setSorting(sorting);
 750
 751     emit sortingChanged(sorting);
 752 }
 753
 754 void DolphinView::updateSortOrder(Qt::SortOrder order)
 755 {
 756     ViewProperties props(url());
 757     props.setSortOrder(order);
 758
 759     m_proxyModel->setSortOrder(order);
 760
 761     emit sortOrderChanged(order);
 762 }
 763
 764 void DolphinView::emitContentsMoved()
 765 {
 766     if (!m_blockContentsMovedSignal) {
 767         emit contentsMoved(contentsX(), contentsY());
 768     }
 769 }
 770
 771 void DolphinView::updateCutItems()
 772 {
 773     // restore the icons of all previously selected items to the
 774     // original state...
 775     QList<CutItem>::const_iterator it = m_cutItemsCache.begin();
 776     QList<CutItem>::const_iterator end = m_cutItemsCache.end();
 777     while (it != end) {
 778         const QModelIndex index = m_dirModel->indexForUrl((*it).url);
 779         if (index.isValid()) {
 780             m_dirModel->setData(index, QIcon((*it).pixmap), Qt::DecorationRole);
 781         }
 782         ++it;
 783     }
 784     m_cutItemsCache.clear();
 785
 786     // ... and apply an item effect to all currently cut items
 787     applyCutItemEffect();
 788 }
 789
 790 void DolphinView::showHoverInformation(const QModelIndex& index)
 791 {
 792     if (hasSelection()) {
 793         return;
 794     }
 795
 796     const KFileItem* item = fileItem(index);
 797     if (item != 0) {
 798         emit requestItemInfo(item->url());
 799     }
 800 }
 801
 802 void DolphinView::clearHoverInformation()
 803 {
 804     emit requestItemInfo(KUrl());
 805 }
 806
 807
 808 void DolphinView::createView()
 809 {
 810     // delete current view
 811     QAbstractItemView* view = itemView();
 812     if (view != 0) {
 813         m_topLayout->removeWidget(view);
 814         view->close();
 815         if (view == m_iconsView) {
 816             KItemCategorizer* categorizer = m_iconsView->itemCategorizer();
 817             m_iconsView->setItemCategorizer(0);
 818             delete categorizer;
 819         }
 820         view->deleteLater();
 821         view = 0;
 822         m_iconsView = 0;
 823         m_detailsView = 0;
 824         m_columnView = 0;
 825         m_fileItemDelegate = 0;
 826     }
 827
 828     Q_ASSERT(m_iconsView == 0);
 829     Q_ASSERT(m_detailsView == 0);
 830     Q_ASSERT(m_columnView == 0);
 831
 832     // ... and recreate it representing the current mode
 833     switch (m_mode) {
 834     case IconsView:
 835         m_iconsView = new DolphinIconsView(this, m_controller);
 836         view = m_iconsView;
 837         break;
 838
 839     case DetailsView:
 840         m_detailsView = new DolphinDetailsView(this, m_controller);
 841         view = m_detailsView;
 842         break;
 843
 844     case ColumnView:
 845         m_columnView = new DolphinColumnView(this, m_controller);
 846         view = m_columnView;
 847         break;
 848     }
 849
 850     Q_ASSERT(view != 0);
 851
 852     m_fileItemDelegate = new KFileItemDelegate(view);
 853     view->setItemDelegate(m_fileItemDelegate);
 854
 855     view->setModel(m_proxyModel);
 856     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
 857
 858     new KMimeTypeResolver(view, m_dirModel);
 859     m_topLayout->insertWidget(1, view);
 860
 861     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
 862             this, SLOT(emitSelectionChangedSignal()));
 863     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
 864             this, SLOT(emitContentsMoved()));
 865     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
 866             this, SLOT(emitContentsMoved()));
 867 }
 868
 869 void DolphinView::selectAll(QItemSelectionModel::SelectionFlags flags)
 870 {
 871     QItemSelectionModel* selectionModel = itemView()->selectionModel();
 872     const QAbstractItemModel* itemModel = selectionModel->model();
 873
 874     const QModelIndex topLeft = itemModel->index(0, 0);
 875     const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 876                                     itemModel->columnCount() - 1);
 877
 878     QItemSelection selection(topLeft, bottomRight);
 879     selectionModel->select(selection, flags);
 880 }
 881
 882 QAbstractItemView* DolphinView::itemView() const
 883 {
 884     if (m_detailsView != 0) {
 885         return m_detailsView;
 886     } else if (m_columnView != 0) {
 887         return m_columnView;
 888     }
 889
 890     return m_iconsView;
 891 }
 892
 893 bool DolphinView::isValidNameIndex(const QModelIndex& index) const
 894 {
 895     return index.isValid() && (index.column() == KDirModel::Name);
 896 }
 897
 898 bool DolphinView::isCutItem(const KFileItem& item) const
 899 {
 900     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 901     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
 902
 903     const KUrl& itemUrl = item.url();
 904     KUrl::List::const_iterator it = cutUrls.begin();
 905     const KUrl::List::const_iterator end = cutUrls.end();
 906     while (it != end) {
 907         if (*it == itemUrl) {
 908             return true;
 909         }
 910         ++it;
 911     }
 912
 913     return false;
 914 }
 915
 916 void DolphinView::applyCutItemEffect()
 917 {
 918     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 919     if (!KonqMimeData::decodeIsCutSelection(mimeData)) {
 920         return;
 921     }
 922
 923     KFileItemList items(m_dirLister->items());
 924     KFileItemList::const_iterator it = items.begin();
 925     const KFileItemList::const_iterator end = items.end();
 926     while (it != end) {
 927         KFileItem* item = *it;
 928         if (isCutItem(*item)) {
 929             const QModelIndex index = m_dirModel->indexForItem(*item);
 930             const KFileItem* item = m_dirModel->itemForIndex(index);
 931             const QVariant value = m_dirModel->data(index, Qt::DecorationRole);
 932             if ((value.type() == QVariant::Icon) && (item != 0)) {
 933                 const QIcon icon(qvariant_cast<QIcon>(value));
 934                 QPixmap pixmap = icon.pixmap(128, 128);
 935
 936                 // remember current pixmap for the item to be able
 937                 // to restore it when other items get cut
 938                 CutItem cutItem;
 939                 cutItem.url = item->url();
 940                 cutItem.pixmap = pixmap;
 941                 m_cutItemsCache.append(cutItem);
 942
 943                 // apply icon effect to the cut item
 944                 KIconEffect iconEffect;
 945                 pixmap = iconEffect.apply(pixmap, K3Icon::Desktop, K3Icon::DisabledState);
 946                 m_dirModel->setData(index, QIcon(pixmap), Qt::DecorationRole);
 947             }
 948         }
 949         ++it;
 950     }
 951 }
 952
 953 #include "dolphinview.moc"