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::renameSelectedItems()
 271 {
 272     // TODO: temporary deactivate due to DolphinView/DolphinViewController split
 273
 274     /*DolphinView* view = 0; //mainWindow()->activeView();
 275     const KUrl::List urls = selectedUrls();
 276     if (urls.count() > 1) {
 277         // More than one item has been selected for renaming. Open
 278         // a rename dialog and rename all items afterwards.
 279         RenameDialog dialog(urls);
 280         if (dialog.exec() == QDialog::Rejected) {
 281             return;
 282         }
 283
 284         const QString& newName = dialog.newName();
 285         if (newName.isEmpty()) {
 286             view->statusBar()->setMessage(dialog.errorString(),
 287                                           DolphinStatusBar::Error);
 288         } else {
 289             // TODO: check how this can be integrated into KonqUndoManager/KonqOperations
 290             // as one operation instead of n rename operations like it is done now...
 291             Q_ASSERT(newName.contains('#'));
 292
 293             // iterate through all selected items and rename them...
 294             const int replaceIndex = newName.indexOf('#');
 295             Q_ASSERT(replaceIndex >= 0);
 296             int index = 1;
 297
 298             KUrl::List::const_iterator it = urls.begin();
 299             KUrl::List::const_iterator end = urls.end();
 300             while (it != end) {
 301                 const KUrl& oldUrl = *it;
 302                 QString number;
 303                 number.setNum(index++);
 304
 305                 QString name(newName);
 306                 name.replace(replaceIndex, 1, number);
 307
 308                 if (oldUrl.fileName() != name) {
 309                     KUrl newUrl = oldUrl;
 310                     newUrl.setFileName(name);
 311                     m_mainWindow->rename(oldUrl, newUrl);
 312                 }
 313                 ++it;
 314             }
 315         }
 316     } else {
 317         // Only one item has been selected for renaming. Use the custom
 318         // renaming mechanism from the views.
 319         Q_ASSERT(urls.count() == 1);
 320
 321         // TODO: Think about using KFileItemDelegate as soon as it supports editing.
 322         // Currently the RenameDialog is used, but I'm not sure whether inline renaming
 323         // is a benefit for the user at all -> let's wait for some input first...
 324         RenameDialog dialog(urls);
 325         if (dialog.exec() == QDialog::Rejected) {
 326             return;
 327         }
 328
 329         const QString& newName = dialog.newName();
 330         if (newName.isEmpty()) {
 331             view->statusBar()->setMessage(dialog.errorString(),
 332                                           DolphinStatusBar::Error);
 333         } else {
 334             const KUrl& oldUrl = urls.first();
 335             KUrl newUrl = oldUrl;
 336             newUrl.setFileName(newName);
 337             m_mainWindow->rename(oldUrl, newUrl);
 338         }
 339     }*/
 340 }
 341
 342 void DolphinView::selectAll()
 343 {
 344     selectAll(QItemSelectionModel::Select);
 345 }
 346
 347 void DolphinView::invertSelection()
 348 {
 349     selectAll(QItemSelectionModel::Toggle);
 350 }
 351
 352 int DolphinView::contentsX() const
 353 {
 354     return itemView()->horizontalScrollBar()->value();
 355 }
 356
 357 int DolphinView::contentsY() const
 358 {
 359     return itemView()->verticalScrollBar()->value();
 360 }
 361
 362 void DolphinView::zoomIn()
 363 {
 364     m_controller->triggerZoomIn();
 365 }
 366
 367 void DolphinView::zoomOut()
 368 {
 369     m_controller->triggerZoomOut();
 370 }
 371
 372 bool DolphinView::isZoomInPossible() const
 373 {
 374     return m_controller->isZoomInPossible();
 375 }
 376
 377 bool DolphinView::isZoomOutPossible() const
 378 {
 379     return m_controller->isZoomOutPossible();
 380 }
 381
 382 void DolphinView::setSorting(Sorting sorting)
 383 {
 384     if (sorting != this->sorting()) {
 385         updateSorting(sorting);
 386     }
 387 }
 388
 389 DolphinView::Sorting DolphinView::sorting() const
 390 {
 391     return m_proxyModel->sorting();
 392 }
 393
 394 void DolphinView::setSortOrder(Qt::SortOrder order)
 395 {
 396     if (sortOrder() != order) {
 397         updateSortOrder(order);
 398     }
 399 }
 400
 401 Qt::SortOrder DolphinView::sortOrder() const
 402 {
 403     return m_proxyModel->sortOrder();
 404 }
 405
 406 void DolphinView::setAdditionalInfo(KFileItemDelegate::AdditionalInformation info)
 407 {
 408     ViewProperties props(url());
 409     props.setAdditionalInfo(info);
 410
 411     m_controller->setShowAdditionalInfo(info != KFileItemDelegate::NoInformation);
 412     m_fileItemDelegate->setAdditionalInformation(info);
 413
 414     emit additionalInfoChanged(info);
 415     startDirLister(url(), true);
 416 }
 417
 418 KFileItemDelegate::AdditionalInformation DolphinView::additionalInfo() const
 419 {
 420     return m_fileItemDelegate->additionalInformation();
 421 }
 422
 423 bool DolphinView::hasSelection() const
 424 {
 425     return itemView()->selectionModel()->hasSelection();
 426 }
 427
 428 void DolphinView::clearSelection()
 429 {
 430     itemView()->selectionModel()->clear();
 431 }
 432
 433 KFileItemList DolphinView::selectedItems() const
 434 {
 435     const QAbstractItemView* view = itemView();
 436
 437     // Our view has a selection, we will map them back to the DirModel
 438     // and then fill the KFileItemList.
 439     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 440
 441     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 442     KFileItemList itemList;
 443
 444     const QModelIndexList indexList = selection.indexes();
 445     QModelIndexList::const_iterator end = indexList.end();
 446     for (QModelIndexList::const_iterator it = indexList.begin(); it != end; ++it) {
 447         Q_ASSERT((*it).isValid());
 448
 449         KFileItem* item = m_dirModel->itemForIndex(*it);
 450         if (item != 0) {
 451             itemList.append(item);
 452         }
 453     }
 454
 455     return itemList;
 456 }
 457
 458 KUrl::List DolphinView::selectedUrls() const
 459 {
 460     KUrl::List urls;
 461
 462     const KFileItemList list = selectedItems();
 463     KFileItemList::const_iterator it = list.begin();
 464     const KFileItemList::const_iterator end = list.end();
 465     while (it != end) {
 466         KFileItem* item = *it;
 467         urls.append(item->url());
 468         ++it;
 469     }
 470
 471     return urls;
 472 }
 473
 474 KFileItem* DolphinView::fileItem(const QModelIndex index) const
 475 {
 476     const QModelIndex dirModelIndex = m_proxyModel->mapToSource(index);
 477     return m_dirModel->itemForIndex(dirModelIndex);
 478 }
 479
 480 void DolphinView::rename(const KUrl& source, const QString& newName)
 481 {
 482     bool ok = false;
 483
 484     if (newName.isEmpty() || (source.fileName() == newName)) {
 485         return;
 486     }
 487
 488     KUrl dest(source.upUrl());
 489     dest.addPath(newName);
 490
 491     const bool destExists = KIO::NetAccess::exists(dest, false, this);
 492     if (destExists) {
 493         // the destination already exists, hence ask the user
 494         // how to proceed...
 495         KIO::RenameDialog renameDialog(this,
 496                                        i18n("File Already Exists"),
 497                                        source.path(),
 498                                        dest.path(),
 499                                        KIO::M_OVERWRITE);
 500         switch (renameDialog.exec()) {
 501         case KIO::R_OVERWRITE:
 502             // the destination should be overwritten
 503             ok = KIO::NetAccess::file_move(source, dest, -1, true);
 504             break;
 505
 506         case KIO::R_RENAME: {
 507             // a new name for the destination has been used
 508             KUrl newDest(renameDialog.newDestUrl());
 509             ok = KIO::NetAccess::file_move(source, newDest);
 510             break;
 511         }
 512
 513         default:
 514             // the renaming operation has been canceled
 515             return;
 516         }
 517     } else {
 518         // no destination exists, hence just move the file to
 519         // do the renaming
 520         ok = KIO::NetAccess::file_move(source, dest);
 521     }
 522
 523     const QString destFileName = dest.fileName();
 524     if (ok) {
 525         // XYDZ
 526         //m_statusBar->setMessage(i18n("Renamed file '%1' to '%2'.", source.fileName(), destFileName),
 527         //                        DolphinStatusBar::OperationCompleted);
 528
 529         KonqOperations::rename(this, source, destFileName);
 530     } else {
 531         // XYDZ
 532         //m_statusBar->setMessage(i18n("Renaming of file '%1' to '%2' failed.", source.fileName(), destFileName),
 533         //                        DolphinStatusBar::Error);
 534     }
 535 }
 536
 537 void DolphinView::reload()
 538 {
 539     setUrl(url());
 540     startDirLister(url(), true);
 541 }
 542
 543 void DolphinView::refresh()
 544 {
 545     createView();
 546     reload();
 547 }
 548
 549 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 550 {
 551     QWidget::mouseReleaseEvent(event);
 552     setActive(true);;
 553 }
 554 void DolphinView::activate()
 555 {
 556     setActive(true);
 557 }
 558
 559 void DolphinView::triggerItem(const QModelIndex& index)
 560 {
 561     if (!isValidNameIndex(index)) {
 562         clearSelection();
 563         showHoverInformation(index);
 564         return;
 565     }
 566
 567     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 568     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 569         // items are selected by the user, hence don't trigger the
 570         // item specified by 'index'
 571         return;
 572     }
 573
 574     KFileItem* item = m_dirModel->itemForIndex(m_proxyModel->mapToSource(index));
 575     if (item == 0) {
 576         return;
 577     }
 578
 579     // Prefer the local path over the URL. This assures that the
 580     // volume space information is correct. Assuming that the URL is media:/sda1,
 581     // and the local path is /windows/C: For the URL the space info is related
 582     // to the root partition (and hence wrong) and for the local path the space
 583     // info is related to the windows partition (-> correct).
 584     const QString localPath(item->localPath());
 585     KUrl url;
 586     if (localPath.isEmpty()) {
 587         url = item->url();
 588     } else {
 589         url = localPath;
 590     }
 591
 592     if (item->isDir()) {
 593         setUrl(url);
 594     } else if (item->isFile()) {
 595         // allow to browse through ZIP and tar files
 596         KMimeType::Ptr mime = item->mimeTypePtr();
 597         if (mime->is("application/zip")) {
 598             url.setProtocol("zip");
 599             setUrl(url);
 600         } else if (mime->is("application/x-tar") ||
 601                    mime->is("application/x-tarz") ||
 602                    mime->is("application/x-bzip-compressed-tar") ||
 603                    mime->is("application/x-compressed-tar") ||
 604                    mime->is("application/x-tzo")) {
 605             url.setProtocol("tar");
 606             setUrl(url);
 607         } else {
 608             item->run();
 609         }
 610     } else {
 611         item->run();
 612     }
 613 }
 614
 615 void DolphinView::generatePreviews(const KFileItemList& items)
 616 {
 617     if (m_controller->showPreview()) {
 618
 619         // Must turn QList<KFileItem *> to QList<KFileItem>...
 620         QList<KFileItem> itemsToPreview;
 621         foreach( KFileItem* it, items )
 622             itemsToPreview.append( *it );
 623
 624         KIO::PreviewJob* job = KIO::filePreview(itemsToPreview, 128);
 625         connect(job, SIGNAL(gotPreview(const KFileItem&, const QPixmap&)),
 626                 this, SLOT(showPreview(const KFileItem&, const QPixmap&)));
 627     }
 628 }
 629
 630 void DolphinView::showPreview(const KFileItem& item, const QPixmap& pixmap)
 631 {
 632     Q_ASSERT(!item.isNull());
 633     if (item.url().directory() != m_dirLister->url().path()) {
 634         // the preview job is still working on items of an older URL, hence
 635         // the item is not part of the directory model anymore
 636         return;
 637     }
 638
 639     const QModelIndex idx = m_dirModel->indexForItem(item);
 640     if (idx.isValid() && (idx.column() == 0)) {
 641         const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 642         if (KonqMimeData::decodeIsCutSelection(mimeData) && isCutItem(item)) {
 643             KIconEffect iconEffect;
 644             const QPixmap cutPixmap = iconEffect.apply(pixmap, K3Icon::Desktop, K3Icon::DisabledState);
 645             m_dirModel->setData(idx, QIcon(cutPixmap), Qt::DecorationRole);
 646         } else {
 647             m_dirModel->setData(idx, QIcon(pixmap), Qt::DecorationRole);
 648         }
 649     }
 650 }
 651
 652 void DolphinView::restoreContentsPos()
 653 {
 654     m_blockContentsMovedSignal = false;
 655     if (!url().isEmpty()) {
 656         QAbstractItemView* view = itemView();
 657         // TODO #1: view->setCurrentItem(m_urlNavigator->currentFileName());
 658         // TODO #2: temporary deactivated due to DolphinView/DolphinViewController split
 659         //QPoint pos = m_urlNavigator->savedPosition();
 660         QPoint pos(0, 0);
 661         view->horizontalScrollBar()->setValue(pos.x());
 662         view->verticalScrollBar()->setValue(pos.y());
 663     }
 664 }
 665
 666 void DolphinView::emitSelectionChangedSignal()
 667 {
 668     emit selectionChanged(DolphinView::selectedItems());
 669 }
 670
 671 void DolphinView::startDirLister(const KUrl& url, bool reload)
 672 {
 673     if (!url.isValid()) {
 674         // TODO: temporary deactivated due to DolphinView/DolphinViewController split
 675
 676         //const QString location(url.pathOrUrl());
 677         //if (location.isEmpty()) {
 678         //    m_statusBar->setMessage(i18n("The location is empty."), DolphinStatusBar::Error);
 679         //} else {
 680         //    m_statusBar->setMessage(i18n("The location '%1' is invalid.", location),
 681         //                            DolphinStatusBar::Error);
 682         //}
 683         return;
 684     }
 685
 686     // Only show the directory loading progress if the status bar does
 687     // not contain another progress information. This means that
 688     // the directory loading progress information has the lowest priority.
 689
 690     // TODO: temporary deactivated due to DolphinView/DolphinViewController split
 691     //const QString progressText(m_statusBar->progressText());
 692     //m_showProgress = progressText.isEmpty() ||
 693     //                 (progressText == i18n("Loading folder..."));
 694     //if (m_showProgress) {
 695     //    m_statusBar->setProgressText(i18n("Loading folder..."));
 696     //    m_statusBar->setProgress(0);
 697     //}
 698
 699     m_cutItemsCache.clear();
 700     m_blockContentsMovedSignal = true;
 701     m_dirLister->stop();
 702
 703     bool openDir = true;
 704     bool keepOldDirs = isColumnViewActive() && !m_initializeColumnView;
 705     m_initializeColumnView = false;
 706
 707     if (keepOldDirs) {
 708         if (reload) {
 709             keepOldDirs = false;
 710
 711             const KUrl& dirListerUrl = m_dirLister->url();
 712             if (dirListerUrl.isValid()) {
 713                 const KUrl::List dirs = m_dirLister->directories();
 714                 KUrl url;
 715                 foreach(url, dirs) {
 716                     m_dirLister->updateDirectory(url);
 717                 }
 718                 openDir = false;
 719             }
 720         } else if (m_dirLister->directories().contains(url)) {
 721             // The dir lister contains the directory already, so
 722             // KDirLister::openUrl() may not been invoked twice.
 723             m_dirLister->updateDirectory(url);
 724             openDir = false;
 725         } else {
 726             const KUrl& dirListerUrl = m_dirLister->url();
 727             if ((dirListerUrl == url) || !m_dirLister->url().isParentOf(url)) {
 728                 // The current URL is not a child of the dir lister
 729                 // URL. This may happen when e. g. a bookmark has been selected
 730                 // and hence the view must be reset.
 731                 keepOldDirs = false;
 732             }
 733         }
 734     }
 735
 736     if (openDir) {
 737         m_dirLister->openUrl(url, keepOldDirs, reload);
 738     }
 739 }
 740
 741 void DolphinView::setUrl(const KUrl& url)
 742 {
 743     if (m_controller->url() == url) {
 744         return;
 745     }
 746
 747     m_controller->setUrl(url);
 748
 749     const ViewProperties props(url);
 750
 751     const Mode mode = props.viewMode();
 752     bool changeMode = (m_mode != mode);
 753     if (changeMode && isColumnViewActive()) {
 754         // The column view is active. Only change the
 755         // mode if the current URL is no child of the column view.
 756         if (m_dirLister->url().isParentOf(url)) {
 757             changeMode = false;
 758         }
 759     }
 760
 761     if (changeMode) {
 762         m_mode = mode;
 763         createView();
 764         emit modeChanged();
 765
 766         if (m_mode == ColumnView) {
 767             // The mode has been changed to the Column View. When starting the dir
 768             // lister with DolphinView::startDirLister() it is important to give a
 769             // hint that the dir lister may not keep the current directory
 770             // although this is the default for showing a hierarchy.
 771             m_initializeColumnView = true;
 772         }
 773     }
 774
 775     const bool showHiddenFiles = props.showHiddenFiles();
 776     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
 777         m_dirLister->setShowingDotFiles(showHiddenFiles);
 778         emit showHiddenFilesChanged();
 779     }
 780
 781     const bool categorized = props.categorizedSorting();
 782     if (categorized != categorizedSorting()) {
 783         if (supportsCategorizedSorting()) {
 784             Q_ASSERT(m_iconsView != 0);
 785             if (categorized) {
 786                 Q_ASSERT(m_iconsView->itemCategorizer() == 0);
 787                 m_iconsView->setItemCategorizer(new DolphinItemCategorizer());
 788             } else {
 789                 KItemCategorizer* categorizer = m_iconsView->itemCategorizer();
 790                 m_iconsView->setItemCategorizer(0);
 791                 delete categorizer;
 792             }
 793         }
 794         emit categorizedSortingChanged();
 795     }
 796
 797     const DolphinView::Sorting sorting = props.sorting();
 798     if (sorting != m_proxyModel->sorting()) {
 799         m_proxyModel->setSorting(sorting);
 800         emit sortingChanged(sorting);
 801     }
 802
 803     const Qt::SortOrder sortOrder = props.sortOrder();
 804     if (sortOrder != m_proxyModel->sortOrder()) {
 805         m_proxyModel->setSortOrder(sortOrder);
 806         emit sortOrderChanged(sortOrder);
 807     }
 808
 809     KFileItemDelegate::AdditionalInformation info = props.additionalInfo();
 810     if (info != m_fileItemDelegate->additionalInformation()) {
 811         m_controller->setShowAdditionalInfo(info != KFileItemDelegate::NoInformation);
 812         m_fileItemDelegate->setAdditionalInformation(info);
 813         emit additionalInfoChanged(info);
 814     }
 815
 816     const bool showPreview = props.showPreview();
 817     if (showPreview != m_controller->showPreview()) {
 818         m_controller->setShowPreview(showPreview);
 819         emit showPreviewChanged();
 820     }
 821
 822     startDirLister(url);
 823     emit urlChanged(url);
 824
 825     // TODO: temporary deactivated due to DolphinView/DolphinViewController split
 826     //m_statusBar->clear();
 827 }
 828
 829 void DolphinView::changeSelection(const KFileItemList& selection)
 830 {
 831     clearSelection();
 832     if (selection.isEmpty()) {
 833         return;
 834     }
 835     const KUrl& baseUrl = url();
 836     KUrl url;
 837     QItemSelection new_selection;
 838     foreach(KFileItem* item, selection) {
 839         url = item->url().upUrl();
 840         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 841             QModelIndex index = m_proxyModel->mapFromSource(m_dirModel->indexForItem(*item));
 842             new_selection.select(index, index);
 843         }
 844     }
 845     itemView()->selectionModel()->select(new_selection,
 846                                          QItemSelectionModel::ClearAndSelect
 847                                          | QItemSelectionModel::Current);
 848 }
 849
 850 void DolphinView::openContextMenu(const QPoint& pos)
 851 {
 852     KFileItem* item = 0;
 853
 854     const QModelIndex index = itemView()->indexAt(pos);
 855     if (isValidNameIndex(index)) {
 856         item = fileItem(index);
 857     }
 858
 859     emit requestContextMenu(item, url());
 860 }
 861
 862 void DolphinView::dropUrls(const KUrl::List& urls,
 863                            const QModelIndex& index,
 864                            QWidget* source)
 865 {
 866     KFileItem* directory = 0;
 867     if (isValidNameIndex(index)) {
 868         KFileItem* item = fileItem(index);
 869         Q_ASSERT(item != 0);
 870         if (item->isDir()) {
 871             // the URLs are dropped above a directory
 872             directory = item;
 873         }
 874     }
 875
 876     if ((directory == 0) && (source == itemView())) {
 877         // The dropping is done into the same viewport where
 878         // the dragging has been started. Just ignore this...
 879         return;
 880     }
 881
 882     const KUrl& destination = (directory == 0) ?
 883                               url() : directory->url();
 884     dropUrls(urls, destination);
 885 }
 886
 887 void DolphinView::dropUrls(const KUrl::List& urls,
 888                            const KUrl& destination)
 889 {
 890     emit urlsDropped(urls, destination);
 891 }
 892
 893 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 894 {
 895     ViewProperties props(url());
 896     props.setSorting(sorting);
 897
 898     m_proxyModel->setSorting(sorting);
 899
 900     emit sortingChanged(sorting);
 901 }
 902
 903 void DolphinView::updateSortOrder(Qt::SortOrder order)
 904 {
 905     ViewProperties props(url());
 906     props.setSortOrder(order);
 907
 908     m_proxyModel->setSortOrder(order);
 909
 910     emit sortOrderChanged(order);
 911 }
 912
 913 void DolphinView::emitContentsMoved()
 914 {
 915     if (!m_blockContentsMovedSignal) {
 916         emit contentsMoved(contentsX(), contentsY());
 917     }
 918 }
 919
 920 void DolphinView::updateCutItems()
 921 {
 922     // restore the icons of all previously selected items to the
 923     // original state...
 924     QList<CutItem>::const_iterator it = m_cutItemsCache.begin();
 925     QList<CutItem>::const_iterator end = m_cutItemsCache.end();
 926     while (it != end) {
 927         const QModelIndex index = m_dirModel->indexForUrl((*it).url);
 928         if (index.isValid()) {
 929             m_dirModel->setData(index, QIcon((*it).pixmap), Qt::DecorationRole);
 930         }
 931         ++it;
 932     }
 933     m_cutItemsCache.clear();
 934
 935     // ... and apply an item effect to all currently cut items
 936     applyCutItemEffect();
 937 }
 938
 939 void DolphinView::showHoverInformation(const QModelIndex& index)
 940 {
 941     if (hasSelection()) {
 942         return;
 943     }
 944
 945     const KFileItem* item = fileItem(index);
 946     if (item != 0) {
 947         // TODO: temporary deactivated due to DolphinView/DolphinViewController split
 948         //m_statusBar->setMessage(item->getStatusBarInfo(), DolphinStatusBar::Default);
 949         emit requestItemInfo(item->url());
 950     }
 951 }
 952
 953 void DolphinView::clearHoverInformation()
 954 {
 955     // TODO: temporary deactivated due to DolphinView/DolphinViewController split
 956     //m_statusBar->clear();
 957     emit requestItemInfo(KUrl());
 958 }
 959
 960
 961 void DolphinView::createView()
 962 {
 963     // delete current view
 964     QAbstractItemView* view = itemView();
 965     if (view != 0) {
 966         m_topLayout->removeWidget(view);
 967         view->close();
 968         if (view == m_iconsView) {
 969             KItemCategorizer* categorizer = m_iconsView->itemCategorizer();
 970             m_iconsView->setItemCategorizer(0);
 971             delete categorizer;
 972         }
 973         view->deleteLater();
 974         view = 0;
 975         m_iconsView = 0;
 976         m_detailsView = 0;
 977         m_columnView = 0;
 978         m_fileItemDelegate = 0;
 979     }
 980
 981     Q_ASSERT(m_iconsView == 0);
 982     Q_ASSERT(m_detailsView == 0);
 983     Q_ASSERT(m_columnView == 0);
 984
 985     // ... and recreate it representing the current mode
 986     switch (m_mode) {
 987     case IconsView:
 988         m_iconsView = new DolphinIconsView(this, m_controller);
 989         view = m_iconsView;
 990         break;
 991
 992     case DetailsView:
 993         m_detailsView = new DolphinDetailsView(this, m_controller);
 994         view = m_detailsView;
 995         break;
 996
 997     case ColumnView:
 998         m_columnView = new DolphinColumnView(this, m_controller);
 999         view = m_columnView;
1000         break;
1001     }
1002
1003     Q_ASSERT(view != 0);
1004
1005     m_fileItemDelegate = new KFileItemDelegate(view);
1006     view->setItemDelegate(m_fileItemDelegate);
1007
1008     view->setModel(m_proxyModel);
1009     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
1010
1011     new KMimeTypeResolver(view, m_dirModel);
1012     m_topLayout->insertWidget(1, view);
1013
1014     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
1015             this, SLOT(emitSelectionChangedSignal()));
1016     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
1017             this, SLOT(emitContentsMoved()));
1018     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
1019             this, SLOT(emitContentsMoved()));
1020 }
1021
1022 void DolphinView::selectAll(QItemSelectionModel::SelectionFlags flags)
1023 {
1024     QItemSelectionModel* selectionModel = itemView()->selectionModel();
1025     const QAbstractItemModel* itemModel = selectionModel->model();
1026
1027     const QModelIndex topLeft = itemModel->index(0, 0);
1028     const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
1029                                     itemModel->columnCount() - 1);
1030
1031     QItemSelection selection(topLeft, bottomRight);
1032     selectionModel->select(selection, flags);
1033 }
1034
1035 QAbstractItemView* DolphinView::itemView() const
1036 {
1037     if (m_detailsView != 0) {
1038         return m_detailsView;
1039     } else if (m_columnView != 0) {
1040         return m_columnView;
1041     }
1042
1043     return m_iconsView;
1044 }
1045
1046 bool DolphinView::isValidNameIndex(const QModelIndex& index) const
1047 {
1048     return index.isValid() && (index.column() == KDirModel::Name);
1049 }
1050
1051 bool DolphinView::isCutItem(const KFileItem& item) const
1052 {
1053     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
1054     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
1055
1056     const KUrl& itemUrl = item.url();
1057     KUrl::List::const_iterator it = cutUrls.begin();
1058     const KUrl::List::const_iterator end = cutUrls.end();
1059     while (it != end) {
1060         if (*it == itemUrl) {
1061             return true;
1062         }
1063         ++it;
1064     }
1065
1066     return false;
1067 }
1068
1069 void DolphinView::applyCutItemEffect()
1070 {
1071     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
1072     if (!KonqMimeData::decodeIsCutSelection(mimeData)) {
1073         return;
1074     }
1075
1076     KFileItemList items(m_dirLister->items());
1077     KFileItemList::const_iterator it = items.begin();
1078     const KFileItemList::const_iterator end = items.end();
1079     while (it != end) {
1080         KFileItem* item = *it;
1081         if (isCutItem(*item)) {
1082             const QModelIndex index = m_dirModel->indexForItem(*item);
1083             const KFileItem* item = m_dirModel->itemForIndex(index);
1084             const QVariant value = m_dirModel->data(index, Qt::DecorationRole);
1085             if ((value.type() == QVariant::Icon) && (item != 0)) {
1086                 const QIcon icon(qvariant_cast<QIcon>(value));
1087                 QPixmap pixmap = icon.pixmap(128, 128);
1088
1089                 // remember current pixmap for the item to be able
1090                 // to restore it when other items get cut
1091                 CutItem cutItem;
1092                 cutItem.url = item->url();
1093                 cutItem.pixmap = pixmap;
1094                 m_cutItemsCache.append(cutItem);
1095
1096                 // apply icon effect to the cut item
1097                 KIconEffect iconEffect;
1098                 pixmap = iconEffect.apply(pixmap, K3Icon::Desktop, K3Icon::DisabledState);
1099                 m_dirModel->setData(index, QIcon(pixmap), Qt::DecorationRole);
1100             }
1101         }
1102         ++it;
1103     }
1104 }
1105
1106 #include "dolphinview.moc"