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_loadingDirectory(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(updateCutItems()));
  88     connect(m_dirLister, SIGNAL(newItems(const KFileItemList&)),
  89             this, SLOT(generatePreviews(const KFileItemList&)));
  90
  91     m_controller = new DolphinController(this);
  92     m_controller->setUrl(url);
  93     connect(m_controller, SIGNAL(requestContextMenu(const QPoint&)),
  94             this, SLOT(openContextMenu(const QPoint&)));
  95     connect(m_controller, SIGNAL(urlsDropped(const KUrl::List&, const QModelIndex&, QWidget*)),
  96             this, SLOT(dropUrls(const KUrl::List&, const QModelIndex&, QWidget*)));
  97     connect(m_controller, SIGNAL(sortingChanged(DolphinView::Sorting)),
  98             this, SLOT(updateSorting(DolphinView::Sorting)));
  99     connect(m_controller, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 100             this, SLOT(updateSortOrder(Qt::SortOrder)));
 101     connect(m_controller, SIGNAL(itemTriggered(const QModelIndex&)),
 102             this, SLOT(triggerItem(const QModelIndex&)));
 103     connect(m_controller, SIGNAL(activated()),
 104             this, SLOT(activate()));
 105     connect(m_controller, SIGNAL(itemEntered(const QModelIndex&)),
 106             this, SLOT(showHoverInformation(const QModelIndex&)));
 107     connect(m_controller, SIGNAL(viewportEntered()),
 108             this, SLOT(clearHoverInformation()));
 109
 110     createView();
 111     m_topLayout->addWidget(itemView());
 112 }
 113
 114 DolphinView::~DolphinView()
 115 {
 116 }
 117
 118 const KUrl& DolphinView::url() const
 119 {
 120     return m_controller->url();
 121 }
 122
 123 KUrl DolphinView::rootUrl() const
 124 {
 125     return isColumnViewActive() ? m_dirLister->url() : url();
 126 }
 127
 128 void DolphinView::setActive(bool active)
 129 {
 130     if (active == m_active) {
 131         return;
 132     }
 133
 134     m_active = active;
 135
 136     QColor color = KGlobalSettings::baseColor();
 137     if (active) {
 138         emit urlChanged(url());
 139         emit selectionChanged(selectedItems());
 140     } else {
 141         color.setAlpha(0);
 142     }
 143
 144     QWidget* viewport = itemView()->viewport();
 145     QPalette palette;
 146     palette.setColor(viewport->backgroundRole(), color);
 147     viewport->setPalette(palette);
 148
 149     update();
 150
 151     if (active) {
 152         emit activated();
 153     }
 154 }
 155
 156 bool DolphinView::isActive() const
 157 {
 158     return m_active;
 159 }
 160
 161 void DolphinView::setMode(Mode mode)
 162 {
 163     if (mode == m_mode) {
 164         return; // the wished mode is already set
 165     }
 166
 167     m_mode = mode;
 168
 169     if (isColumnViewActive()) {
 170         // When changing the mode in the column view, it makes sense
 171         // to go back to the root URL of the column view automatically.
 172         // Otherwise there it would not be possible to turn off the column view
 173         // without focusing the first column.
 174         setUrl(m_dirLister->url());
 175         m_controller->setUrl(m_dirLister->url());
 176     }
 177
 178     ViewProperties props(url());
 179     props.setViewMode(m_mode);
 180
 181     createView();
 182     startDirLister(url());
 183
 184     emit modeChanged();
 185 }
 186
 187 DolphinView::Mode DolphinView::mode() const
 188 {
 189     return m_mode;
 190 }
 191
 192 void DolphinView::setShowPreview(bool show)
 193 {
 194     ViewProperties props(url());
 195     props.setShowPreview(show);
 196
 197     m_controller->setShowPreview(show);
 198     emit showPreviewChanged();
 199
 200     startDirLister(url(), true);
 201 }
 202
 203 bool DolphinView::showPreview() const
 204 {
 205     return m_controller->showPreview();
 206 }
 207
 208 void DolphinView::setShowHiddenFiles(bool show)
 209 {
 210     if (m_dirLister->showingDotFiles() == show) {
 211         return;
 212     }
 213
 214     ViewProperties props(url());
 215     props.setShowHiddenFiles(show);
 216
 217     m_dirLister->setShowingDotFiles(show);
 218     emit showHiddenFilesChanged();
 219
 220     startDirLister(url(), true);
 221 }
 222
 223 bool DolphinView::showHiddenFiles() const
 224 {
 225     return m_dirLister->showingDotFiles();
 226 }
 227
 228 void DolphinView::setCategorizedSorting(bool categorized)
 229 {
 230     if (!supportsCategorizedSorting() || (categorized == categorizedSorting())) {
 231         return;
 232     }
 233
 234     Q_ASSERT(m_iconsView != 0);
 235     if (categorized) {
 236         Q_ASSERT(m_iconsView->itemCategorizer() == 0);
 237         m_iconsView->setItemCategorizer(new DolphinItemCategorizer());
 238     } else {
 239         KItemCategorizer* categorizer = m_iconsView->itemCategorizer();
 240         m_iconsView->setItemCategorizer(0);
 241         delete categorizer;
 242     }
 243
 244     ViewProperties props(url());
 245     props.setCategorizedSorting(categorized);
 246     props.save();
 247
 248     emit categorizedSortingChanged();
 249 }
 250
 251 bool DolphinView::categorizedSorting() const
 252 {
 253     if (!supportsCategorizedSorting()) {
 254         return false;
 255     }
 256
 257     Q_ASSERT(m_iconsView != 0);
 258     return m_iconsView->itemCategorizer() != 0;
 259 }
 260
 261 bool DolphinView::supportsCategorizedSorting() const
 262 {
 263     return m_iconsView != 0;
 264 }
 265
 266 void DolphinView::selectAll()
 267 {
 268     selectAll(QItemSelectionModel::Select);
 269 }
 270
 271 void DolphinView::invertSelection()
 272 {
 273     selectAll(QItemSelectionModel::Toggle);
 274 }
 275
 276 bool DolphinView::hasSelection() const
 277 {
 278     return itemView()->selectionModel()->hasSelection();
 279 }
 280
 281 void DolphinView::clearSelection()
 282 {
 283     itemView()->selectionModel()->clear();
 284 }
 285
 286 KFileItemList DolphinView::selectedItems() const
 287 {
 288     const QAbstractItemView* view = itemView();
 289
 290     // Our view has a selection, we will map them back to the DirModel
 291     // and then fill the KFileItemList.
 292     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 293
 294     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 295     KFileItemList itemList;
 296
 297     const QModelIndexList indexList = selection.indexes();
 298     QModelIndexList::const_iterator end = indexList.end();
 299     for (QModelIndexList::const_iterator it = indexList.begin(); it != end; ++it) {
 300         Q_ASSERT((*it).isValid());
 301
 302         KFileItem* item = m_dirModel->itemForIndex(*it);
 303         if (item != 0) {
 304             itemList.append(item);
 305         }
 306     }
 307
 308     return itemList;
 309 }
 310
 311 KUrl::List DolphinView::selectedUrls() const
 312 {
 313     KUrl::List urls;
 314
 315     const KFileItemList list = selectedItems();
 316     KFileItemList::const_iterator it = list.begin();
 317     const KFileItemList::const_iterator end = list.end();
 318     while (it != end) {
 319         KFileItem* item = *it;
 320         urls.append(item->url());
 321         ++it;
 322     }
 323
 324     return urls;
 325 }
 326
 327 KFileItem* DolphinView::fileItem(const QModelIndex index) const
 328 {
 329     const QModelIndex dirModelIndex = m_proxyModel->mapToSource(index);
 330     return m_dirModel->itemForIndex(dirModelIndex);
 331 }
 332
 333 void DolphinView::setContentsPosition(int x, int y)
 334 {
 335     QAbstractItemView* view = itemView();
 336     view->horizontalScrollBar()->setValue(x);
 337     view->verticalScrollBar()->setValue(y);
 338
 339     m_loadingDirectory = false;
 340 }
 341
 342 QPoint DolphinView::contentsPosition() const
 343 {
 344     const int x = itemView()->horizontalScrollBar()->value();
 345     const int y = itemView()->verticalScrollBar()->value();
 346     return QPoint(x, y);
 347 }
 348
 349 void DolphinView::zoomIn()
 350 {
 351     m_controller->triggerZoomIn();
 352 }
 353
 354 void DolphinView::zoomOut()
 355 {
 356     m_controller->triggerZoomOut();
 357 }
 358
 359 bool DolphinView::isZoomInPossible() const
 360 {
 361     return m_controller->isZoomInPossible();
 362 }
 363
 364 bool DolphinView::isZoomOutPossible() const
 365 {
 366     return m_controller->isZoomOutPossible();
 367 }
 368
 369 void DolphinView::setSorting(Sorting sorting)
 370 {
 371     if (sorting != this->sorting()) {
 372         updateSorting(sorting);
 373     }
 374 }
 375
 376 DolphinView::Sorting DolphinView::sorting() const
 377 {
 378     return m_proxyModel->sorting();
 379 }
 380
 381 void DolphinView::setSortOrder(Qt::SortOrder order)
 382 {
 383     if (sortOrder() != order) {
 384         updateSortOrder(order);
 385     }
 386 }
 387
 388 Qt::SortOrder DolphinView::sortOrder() const
 389 {
 390     return m_proxyModel->sortOrder();
 391 }
 392
 393 void DolphinView::setAdditionalInfo(KFileItemDelegate::AdditionalInformation info)
 394 {
 395     ViewProperties props(url());
 396     props.setAdditionalInfo(info);
 397
 398     m_controller->setShowAdditionalInfo(info != KFileItemDelegate::NoInformation);
 399     m_fileItemDelegate->setAdditionalInformation(info);
 400
 401     emit additionalInfoChanged(info);
 402     startDirLister(url(), true);
 403 }
 404
 405 KFileItemDelegate::AdditionalInformation DolphinView::additionalInfo() const
 406 {
 407     return m_fileItemDelegate->additionalInformation();
 408 }
 409
 410 void DolphinView::reload()
 411 {
 412     setUrl(url());
 413     startDirLister(url(), true);
 414 }
 415
 416 void DolphinView::refresh()
 417 {
 418     createView();
 419     reload();
 420 }
 421
 422 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 423 {
 424     QWidget::mouseReleaseEvent(event);
 425     setActive(true);;
 426 }
 427 void DolphinView::activate()
 428 {
 429     setActive(true);
 430 }
 431
 432 void DolphinView::triggerItem(const QModelIndex& index)
 433 {
 434     if (!isValidNameIndex(index)) {
 435         clearSelection();
 436         showHoverInformation(index);
 437         return;
 438     }
 439
 440     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 441     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 442         // items are selected by the user, hence don't trigger the
 443         // item specified by 'index'
 444         return;
 445     }
 446
 447     KFileItem* item = m_dirModel->itemForIndex(m_proxyModel->mapToSource(index));
 448     if (item == 0) {
 449         return;
 450     }
 451
 452     // Prefer the local path over the URL. This assures that the
 453     // volume space information is correct. Assuming that the URL is media:/sda1,
 454     // and the local path is /windows/C: For the URL the space info is related
 455     // to the root partition (and hence wrong) and for the local path the space
 456     // info is related to the windows partition (-> correct).
 457     const QString localPath(item->localPath());
 458     KUrl url;
 459     if (localPath.isEmpty()) {
 460         url = item->url();
 461     } else {
 462         url = localPath;
 463     }
 464
 465     if (item->isDir()) {
 466         setUrl(url);
 467     } else if (item->isFile()) {
 468         // allow to browse through ZIP and tar files
 469         KMimeType::Ptr mime = item->mimeTypePtr();
 470         if (mime->is("application/zip")) {
 471             url.setProtocol("zip");
 472             setUrl(url);
 473         } else if (mime->is("application/x-tar") ||
 474                    mime->is("application/x-tarz") ||
 475                    mime->is("application/x-bzip-compressed-tar") ||
 476                    mime->is("application/x-compressed-tar") ||
 477                    mime->is("application/x-tzo")) {
 478             url.setProtocol("tar");
 479             setUrl(url);
 480         } else {
 481             item->run();
 482         }
 483     } else {
 484         item->run();
 485     }
 486 }
 487
 488 void DolphinView::generatePreviews(const KFileItemList& items)
 489 {
 490     if (m_controller->showPreview()) {
 491
 492         // Must turn QList<KFileItem *> to QList<KFileItem>...
 493         QList<KFileItem> itemsToPreview;
 494         foreach( KFileItem* it, items )
 495             itemsToPreview.append( *it );
 496
 497         KIO::PreviewJob* job = KIO::filePreview(itemsToPreview, 128);
 498         connect(job, SIGNAL(gotPreview(const KFileItem&, const QPixmap&)),
 499                 this, SLOT(showPreview(const KFileItem&, const QPixmap&)));
 500     }
 501 }
 502
 503 void DolphinView::showPreview(const KFileItem& item, const QPixmap& pixmap)
 504 {
 505     Q_ASSERT(!item.isNull());
 506     if (item.url().directory() != m_dirLister->url().path()) {
 507         // the preview job is still working on items of an older URL, hence
 508         // the item is not part of the directory model anymore
 509         return;
 510     }
 511
 512     const QModelIndex idx = m_dirModel->indexForItem(item);
 513     if (idx.isValid() && (idx.column() == 0)) {
 514         const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 515         if (KonqMimeData::decodeIsCutSelection(mimeData) && isCutItem(item)) {
 516             KIconEffect iconEffect;
 517             const QPixmap cutPixmap = iconEffect.apply(pixmap, K3Icon::Desktop, K3Icon::DisabledState);
 518             m_dirModel->setData(idx, QIcon(cutPixmap), Qt::DecorationRole);
 519         } else {
 520             m_dirModel->setData(idx, QIcon(pixmap), Qt::DecorationRole);
 521         }
 522     }
 523 }
 524
 525 void DolphinView::emitSelectionChangedSignal()
 526 {
 527     emit selectionChanged(DolphinView::selectedItems());
 528 }
 529
 530 void DolphinView::startDirLister(const KUrl& url, bool reload)
 531 {
 532     if (!url.isValid()) {
 533         const QString location(url.pathOrUrl());
 534         if (location.isEmpty()) {
 535             emit errorMessage(i18n("The location is empty."));
 536         } else {
 537             emit errorMessage(i18n("The location '%1' is invalid.", location));
 538         }
 539         return;
 540     }
 541
 542     m_cutItemsCache.clear();
 543     m_loadingDirectory = true;
 544
 545     m_dirLister->stop();
 546
 547     bool openDir = true;
 548     bool keepOldDirs = isColumnViewActive() && !m_initializeColumnView;
 549     m_initializeColumnView = false;
 550
 551     if (keepOldDirs) {
 552         if (reload) {
 553             keepOldDirs = false;
 554
 555             const KUrl& dirListerUrl = m_dirLister->url();
 556             if (dirListerUrl.isValid()) {
 557                 const KUrl::List dirs = m_dirLister->directories();
 558                 KUrl url;
 559                 foreach(url, dirs) {
 560                     m_dirLister->updateDirectory(url);
 561                 }
 562                 openDir = false;
 563             }
 564         } else if (m_dirLister->directories().contains(url)) {
 565             // The dir lister contains the directory already, so
 566             // KDirLister::openUrl() may not been invoked twice.
 567             m_dirLister->updateDirectory(url);
 568             openDir = false;
 569         } else {
 570             const KUrl& dirListerUrl = m_dirLister->url();
 571             if ((dirListerUrl == url) || !m_dirLister->url().isParentOf(url)) {
 572                 // The current URL is not a child of the dir lister
 573                 // URL. This may happen when e. g. a bookmark has been selected
 574                 // and hence the view must be reset.
 575                 keepOldDirs = false;
 576             }
 577         }
 578     }
 579
 580     if (openDir) {
 581         m_dirLister->openUrl(url, keepOldDirs, reload);
 582     }
 583 }
 584
 585 void DolphinView::setUrl(const KUrl& url)
 586 {
 587     if (m_controller->url() == url) {
 588         return;
 589     }
 590
 591     m_controller->setUrl(url);
 592
 593     const ViewProperties props(url);
 594
 595     const Mode mode = props.viewMode();
 596     bool changeMode = (m_mode != mode);
 597     if (changeMode && isColumnViewActive()) {
 598         // The column view is active. Only change the
 599         // mode if the current URL is no child of the column view.
 600         if (m_dirLister->url().isParentOf(url)) {
 601             changeMode = false;
 602         }
 603     }
 604
 605     if (changeMode) {
 606         m_mode = mode;
 607         createView();
 608         emit modeChanged();
 609
 610         if (m_mode == ColumnView) {
 611             // The mode has been changed to the Column View. When starting the dir
 612             // lister with DolphinView::startDirLister() it is important to give a
 613             // hint that the dir lister may not keep the current directory
 614             // although this is the default for showing a hierarchy.
 615             m_initializeColumnView = true;
 616         }
 617     }
 618
 619     const bool showHiddenFiles = props.showHiddenFiles();
 620     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
 621         m_dirLister->setShowingDotFiles(showHiddenFiles);
 622         emit showHiddenFilesChanged();
 623     }
 624
 625     const bool categorized = props.categorizedSorting();
 626     if (categorized != categorizedSorting()) {
 627         if (supportsCategorizedSorting()) {
 628             Q_ASSERT(m_iconsView != 0);
 629             if (categorized) {
 630                 Q_ASSERT(m_iconsView->itemCategorizer() == 0);
 631                 m_iconsView->setItemCategorizer(new DolphinItemCategorizer());
 632             } else {
 633                 KItemCategorizer* categorizer = m_iconsView->itemCategorizer();
 634                 m_iconsView->setItemCategorizer(0);
 635                 delete categorizer;
 636             }
 637         }
 638         emit categorizedSortingChanged();
 639     }
 640
 641     const DolphinView::Sorting sorting = props.sorting();
 642     if (sorting != m_proxyModel->sorting()) {
 643         m_proxyModel->setSorting(sorting);
 644         emit sortingChanged(sorting);
 645     }
 646
 647     const Qt::SortOrder sortOrder = props.sortOrder();
 648     if (sortOrder != m_proxyModel->sortOrder()) {
 649         m_proxyModel->setSortOrder(sortOrder);
 650         emit sortOrderChanged(sortOrder);
 651     }
 652
 653     KFileItemDelegate::AdditionalInformation info = props.additionalInfo();
 654     if (info != m_fileItemDelegate->additionalInformation()) {
 655         m_controller->setShowAdditionalInfo(info != KFileItemDelegate::NoInformation);
 656         m_fileItemDelegate->setAdditionalInformation(info);
 657         emit additionalInfoChanged(info);
 658     }
 659
 660     const bool showPreview = props.showPreview();
 661     if (showPreview != m_controller->showPreview()) {
 662         m_controller->setShowPreview(showPreview);
 663         emit showPreviewChanged();
 664     }
 665
 666     startDirLister(url);
 667     emit urlChanged(url);
 668 }
 669
 670 void DolphinView::changeSelection(const KFileItemList& selection)
 671 {
 672     clearSelection();
 673     if (selection.isEmpty()) {
 674         return;
 675     }
 676     const KUrl& baseUrl = url();
 677     KUrl url;
 678     QItemSelection new_selection;
 679     foreach(KFileItem* item, selection) {
 680         url = item->url().upUrl();
 681         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 682             QModelIndex index = m_proxyModel->mapFromSource(m_dirModel->indexForItem(*item));
 683             new_selection.select(index, index);
 684         }
 685     }
 686     itemView()->selectionModel()->select(new_selection,
 687                                          QItemSelectionModel::ClearAndSelect
 688                                          | QItemSelectionModel::Current);
 689 }
 690
 691 void DolphinView::openContextMenu(const QPoint& pos)
 692 {
 693     KFileItem* item = 0;
 694
 695     const QModelIndex index = itemView()->indexAt(pos);
 696     if (isValidNameIndex(index)) {
 697         item = fileItem(index);
 698     }
 699
 700     emit requestContextMenu(item, url());
 701 }
 702
 703 void DolphinView::dropUrls(const KUrl::List& urls,
 704                            const QModelIndex& index,
 705                            QWidget* source)
 706 {
 707     KFileItem* directory = 0;
 708     if (isValidNameIndex(index)) {
 709         KFileItem* item = fileItem(index);
 710         Q_ASSERT(item != 0);
 711         if (item->isDir()) {
 712             // the URLs are dropped above a directory
 713             directory = item;
 714         }
 715     }
 716
 717     if ((directory == 0) && (source == itemView())) {
 718         // The dropping is done into the same viewport where
 719         // the dragging has been started. Just ignore this...
 720         return;
 721     }
 722
 723     const KUrl& destination = (directory == 0) ?
 724                               url() : directory->url();
 725     dropUrls(urls, destination);
 726 }
 727
 728 void DolphinView::dropUrls(const KUrl::List& urls,
 729                            const KUrl& destination)
 730 {
 731     emit urlsDropped(urls, destination);
 732 }
 733
 734 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 735 {
 736     ViewProperties props(url());
 737     props.setSorting(sorting);
 738
 739     m_proxyModel->setSorting(sorting);
 740
 741     emit sortingChanged(sorting);
 742 }
 743
 744 void DolphinView::updateSortOrder(Qt::SortOrder order)
 745 {
 746     ViewProperties props(url());
 747     props.setSortOrder(order);
 748
 749     m_proxyModel->setSortOrder(order);
 750
 751     emit sortOrderChanged(order);
 752 }
 753
 754 void DolphinView::emitContentsMoved()
 755 {
 756     // only emit the contents moved signal if:
 757     // - no directory loading is ongoing (this would reset the contents position
 758     //   always to (0, 0))
 759     // - if the Column View is active: the column view does an automatic
 760     //   positioning during the loading operation, which must be remembered
 761     if (!m_loadingDirectory || isColumnViewActive()) {
 762         const QPoint pos(contentsPosition());
 763         emit contentsMoved(pos.x(), pos.y());
 764     }
 765 }
 766
 767 void DolphinView::updateCutItems()
 768 {
 769     // restore the icons of all previously selected items to the
 770     // original state...
 771     QList<CutItem>::const_iterator it = m_cutItemsCache.begin();
 772     QList<CutItem>::const_iterator end = m_cutItemsCache.end();
 773     while (it != end) {
 774         const QModelIndex index = m_dirModel->indexForUrl((*it).url);
 775         if (index.isValid()) {
 776             m_dirModel->setData(index, QIcon((*it).pixmap), Qt::DecorationRole);
 777         }
 778         ++it;
 779     }
 780     m_cutItemsCache.clear();
 781
 782     // ... and apply an item effect to all currently cut items
 783     applyCutItemEffect();
 784 }
 785
 786 void DolphinView::showHoverInformation(const QModelIndex& index)
 787 {
 788     if (hasSelection()) {
 789         return;
 790     }
 791
 792     const KFileItem* item = fileItem(index);
 793     if (item != 0) {
 794         emit requestItemInfo(item->url());
 795     }
 796 }
 797
 798 void DolphinView::clearHoverInformation()
 799 {
 800     emit requestItemInfo(KUrl());
 801 }
 802
 803
 804 void DolphinView::createView()
 805 {
 806     // delete current view
 807     QAbstractItemView* view = itemView();
 808     if (view != 0) {
 809         m_topLayout->removeWidget(view);
 810         view->close();
 811         if (view == m_iconsView) {
 812             KItemCategorizer* categorizer = m_iconsView->itemCategorizer();
 813             m_iconsView->setItemCategorizer(0);
 814             delete categorizer;
 815         }
 816         view->deleteLater();
 817         view = 0;
 818         m_iconsView = 0;
 819         m_detailsView = 0;
 820         m_columnView = 0;
 821         m_fileItemDelegate = 0;
 822     }
 823
 824     Q_ASSERT(m_iconsView == 0);
 825     Q_ASSERT(m_detailsView == 0);
 826     Q_ASSERT(m_columnView == 0);
 827
 828     // ... and recreate it representing the current mode
 829     switch (m_mode) {
 830     case IconsView:
 831         m_iconsView = new DolphinIconsView(this, m_controller);
 832         view = m_iconsView;
 833         break;
 834
 835     case DetailsView:
 836         m_detailsView = new DolphinDetailsView(this, m_controller);
 837         view = m_detailsView;
 838         break;
 839
 840     case ColumnView:
 841         m_columnView = new DolphinColumnView(this, m_controller);
 842         view = m_columnView;
 843         break;
 844     }
 845
 846     Q_ASSERT(view != 0);
 847
 848     m_fileItemDelegate = new KFileItemDelegate(view);
 849     view->setItemDelegate(m_fileItemDelegate);
 850
 851     view->setModel(m_proxyModel);
 852     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
 853
 854     new KMimeTypeResolver(view, m_dirModel);
 855     m_topLayout->insertWidget(1, view);
 856
 857     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
 858             this, SLOT(emitSelectionChangedSignal()));
 859     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
 860             this, SLOT(emitContentsMoved()));
 861     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
 862             this, SLOT(emitContentsMoved()));
 863 }
 864
 865 void DolphinView::selectAll(QItemSelectionModel::SelectionFlags flags)
 866 {
 867     QItemSelectionModel* selectionModel = itemView()->selectionModel();
 868     const QAbstractItemModel* itemModel = selectionModel->model();
 869
 870     const QModelIndex topLeft = itemModel->index(0, 0);
 871     const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 872                                     itemModel->columnCount() - 1);
 873
 874     QItemSelection selection(topLeft, bottomRight);
 875     selectionModel->select(selection, flags);
 876 }
 877
 878 QAbstractItemView* DolphinView::itemView() const
 879 {
 880     if (m_detailsView != 0) {
 881         return m_detailsView;
 882     } else if (m_columnView != 0) {
 883         return m_columnView;
 884     }
 885
 886     return m_iconsView;
 887 }
 888
 889 bool DolphinView::isValidNameIndex(const QModelIndex& index) const
 890 {
 891     return index.isValid() && (index.column() == KDirModel::Name);
 892 }
 893
 894 bool DolphinView::isCutItem(const KFileItem& item) const
 895 {
 896     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 897     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
 898
 899     const KUrl& itemUrl = item.url();
 900     KUrl::List::const_iterator it = cutUrls.begin();
 901     const KUrl::List::const_iterator end = cutUrls.end();
 902     while (it != end) {
 903         if (*it == itemUrl) {
 904             return true;
 905         }
 906         ++it;
 907     }
 908
 909     return false;
 910 }
 911
 912 void DolphinView::applyCutItemEffect()
 913 {
 914     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 915     if (!KonqMimeData::decodeIsCutSelection(mimeData)) {
 916         return;
 917     }
 918
 919     KFileItemList items(m_dirLister->items());
 920     KFileItemList::const_iterator it = items.begin();
 921     const KFileItemList::const_iterator end = items.end();
 922     while (it != end) {
 923         KFileItem* item = *it;
 924         if (isCutItem(*item)) {
 925             const QModelIndex index = m_dirModel->indexForItem(*item);
 926             const KFileItem* item = m_dirModel->itemForIndex(index);
 927             const QVariant value = m_dirModel->data(index, Qt::DecorationRole);
 928             if ((value.type() == QVariant::Icon) && (item != 0)) {
 929                 const QIcon icon(qvariant_cast<QIcon>(value));
 930                 QPixmap pixmap = icon.pixmap(128, 128);
 931
 932                 // remember current pixmap for the item to be able
 933                 // to restore it when other items get cut
 934                 CutItem cutItem;
 935                 cutItem.url = item->url();
 936                 cutItem.pixmap = pixmap;
 937                 m_cutItemsCache.append(cutItem);
 938
 939                 // apply icon effect to the cut item
 940                 KIconEffect iconEffect;
 941                 pixmap = iconEffect.apply(pixmap, K3Icon::Desktop, K3Icon::DisabledState);
 942                 m_dirModel->setData(index, QIcon(pixmap), Qt::DecorationRole);
 943             }
 944         }
 945         ++it;
 946     }
 947 }
 948
 949 #include "dolphinview.moc"