src/dolphinview.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006 by Peter Penz <peter.penz@gmx.at>                  *
   3  *   Copyright (C) 2006 by Gregor Kališnik <gregor@podnapisi.net>          *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  19  ***************************************************************************/
  20
  21 #include "dolphinview.h"
  22
  23 #include <QApplication>
  24 #include <QClipboard>
  25 #include <QKeyEvent>
  26 #include <QItemSelection>
  27 #include <QBoxLayout>
  28 #include <QTimer>
  29 #include <QScrollBar>
  30
  31 #include <kcolorscheme.h>
  32 #include <kdirlister.h>
  33 #include <kfileitemdelegate.h>
  34 #include <klocale.h>
  35 #include <kiconeffect.h>
  36 #include <kio/netaccess.h>
  37 #include <kio/renamedialog.h>
  38 #include <kio/previewjob.h>
  39 #include <kmimetyperesolver.h>
  40 #include <konqmimedata.h>
  41 #include <konq_operations.h>
  42 #include <kurl.h>
  43
  44 #include "dolphinmodel.h"
  45 #include "dolphincolumnview.h"
  46 #include "dolphincontroller.h"
  47 #include "dolphinsortfilterproxymodel.h"
  48 #include "dolphindetailsview.h"
  49 #include "dolphiniconsview.h"
  50 #include "renamedialog.h"
  51 #include "viewproperties.h"
  52 #include "dolphinsettings.h"
  53 #include "dolphin_generalsettings.h"
  54
  55 DolphinView::DolphinView(QWidget* parent,
  56                          const KUrl& url,
  57                          KDirLister* dirLister,
  58                          DolphinModel* dolphinModel,
  59                          DolphinSortFilterProxyModel* proxyModel) :
  60     QWidget(parent),
  61     m_active(true),
  62     m_loadingDirectory(false),
  63     m_storedCategorizedSorting(false),
  64     m_mode(DolphinView::IconsView),
  65     m_topLayout(0),
  66     m_controller(0),
  67     m_iconsView(0),
  68     m_detailsView(0),
  69     m_columnView(0),
  70     m_fileItemDelegate(0),
  71     m_dolphinModel(dolphinModel),
  72     m_dirLister(dirLister),
  73     m_proxyModel(proxyModel)
  74 {
  75     setFocusPolicy(Qt::StrongFocus);
  76     m_topLayout = new QVBoxLayout(this);
  77     m_topLayout->setSpacing(0);
  78     m_topLayout->setMargin(0);
  79
  80     QClipboard* clipboard = QApplication::clipboard();
  81     connect(clipboard, SIGNAL(dataChanged()),
  82             this, SLOT(updateCutItems()));
  83
  84     connect(m_dirLister, SIGNAL(completed()),
  85             this, SLOT(updateCutItems()));
  86     connect(m_dirLister, SIGNAL(newItems(const KFileItemList&)),
  87             this, SLOT(generatePreviews(const KFileItemList&)));
  88
  89     m_controller = new DolphinController(this);
  90     m_controller->setUrl(url);
  91     connect(m_controller, SIGNAL(urlChanged(const KUrl&)),
  92             this, SIGNAL(urlChanged(const KUrl&)));
  93     connect(m_controller, SIGNAL(requestContextMenu(const QPoint&)),
  94             this, SLOT(openContextMenu(const QPoint&)));
  95     connect(m_controller, SIGNAL(urlsDropped(const KUrl::List&, const KUrl&, const QModelIndex&, QWidget*)),
  96             this, SLOT(dropUrls(const KUrl::List&, const KUrl&, 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 KFileItem&)),
 106             this, SLOT(showHoverInformation(const KFileItem&)));
 107     connect(m_controller, SIGNAL(viewportEntered()),
 108             this, SLOT(clearHoverInformation()));
 109
 110     applyViewProperties(url);
 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     updateViewportColor();
 137     update();
 138
 139     if (active) {
 140         emit activated();
 141     }
 142 }
 143
 144 bool DolphinView::isActive() const
 145 {
 146     return m_active;
 147 }
 148
 149 void DolphinView::setMode(Mode mode)
 150 {
 151     if (mode == m_mode) {
 152         return; // the wished mode is already set
 153     }
 154
 155     m_mode = mode;
 156
 157     if (isColumnViewActive()) {
 158         // When changing the mode in the column view, it makes sense
 159         // to go back to the root URL of the column view automatically.
 160         // Otherwise there it would not be possible to turn off the column view
 161         // without focusing the first column.
 162         setUrl(m_dirLister->url());
 163         m_controller->setUrl(m_dirLister->url());
 164     }
 165
 166     const KUrl viewPropsUrl = viewPropertiesUrl();
 167     ViewProperties props(viewPropsUrl);
 168     props.setViewMode(m_mode);
 169
 170     createView();
 171
 172     // Not all view modes support categorized sorting. Adjust the sorting model
 173     // if changing the view mode results in a change of the categorized sorting
 174     // capabilities.
 175     m_storedCategorizedSorting = props.categorizedSorting();
 176     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 177     if (categorized != m_proxyModel->isCategorizedModel()) {
 178         m_proxyModel->setCategorizedModel(categorized);
 179         m_proxyModel->sort(m_proxyModel->sortColumn(), m_proxyModel->sortOrder());
 180         emit categorizedSortingChanged();
 181     }
 182
 183     loadDirectory(viewPropsUrl);
 184
 185     emit modeChanged();
 186 }
 187
 188 DolphinView::Mode DolphinView::mode() const
 189 {
 190     return m_mode;
 191 }
 192
 193 void DolphinView::setShowPreview(bool show)
 194 {
 195     const KUrl viewPropsUrl = viewPropertiesUrl();
 196     ViewProperties props(viewPropsUrl);
 197     props.setShowPreview(show);
 198
 199     m_controller->setShowPreview(show);
 200     emit showPreviewChanged();
 201
 202     loadDirectory(viewPropsUrl, true);
 203 }
 204
 205 bool DolphinView::showPreview() const
 206 {
 207     return m_controller->showPreview();
 208 }
 209
 210 void DolphinView::setShowHiddenFiles(bool show)
 211 {
 212     if (m_dirLister->showingDotFiles() == show) {
 213         return;
 214     }
 215
 216     const KUrl viewPropsUrl = viewPropertiesUrl();
 217     ViewProperties props(viewPropsUrl);
 218     props.setShowHiddenFiles(show);
 219
 220     m_dirLister->setShowingDotFiles(show);
 221     m_controller->setShowHiddenFiles(show);
 222     emit showHiddenFilesChanged();
 223
 224     loadDirectory(viewPropsUrl, true);
 225 }
 226
 227 bool DolphinView::showHiddenFiles() const
 228 {
 229     return m_dirLister->showingDotFiles();
 230 }
 231
 232 void DolphinView::setCategorizedSorting(bool categorized)
 233 {
 234     if (categorized == categorizedSorting()) {
 235         return;
 236     }
 237
 238     // setCategorizedSorting(true) may only get invoked
 239     // if the view supports categorized sorting
 240     Q_ASSERT(!categorized || supportsCategorizedSorting());
 241
 242     ViewProperties props(viewPropertiesUrl());
 243     props.setCategorizedSorting(categorized);
 244     props.save();
 245
 246     m_storedCategorizedSorting = categorized;
 247     m_proxyModel->setCategorizedModel(categorized);
 248     m_proxyModel->sort(m_proxyModel->sortColumn(), m_proxyModel->sortOrder());
 249
 250     emit categorizedSortingChanged();
 251 }
 252
 253 bool DolphinView::categorizedSorting() const
 254 {
 255     // If all view modes would support categorized sorting, returning
 256     // m_proxyModel->isCategorizedModel() would be the way to go. As
 257     // currently only the icons view supports caterized sorting, we remember
 258     // the stored view properties state in m_storedCategorizedSorting and
 259     // return this state. The application takes care to disable the corresponding
 260     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 261     // that this setting is not applied to the current view mode.
 262     return m_storedCategorizedSorting;
 263 }
 264
 265 bool DolphinView::supportsCategorizedSorting() const
 266 {
 267     return m_iconsView != 0;
 268 }
 269
 270 void DolphinView::selectAll()
 271 {
 272     itemView()->selectAll();
 273 }
 274
 275 void DolphinView::invertSelection()
 276 {
 277     if (isColumnViewActive()) {
 278         // QAbstractItemView does not offer a virtual method invertSelection()
 279         // as counterpart to QAbstractItemView::selectAll(). This makes it
 280         // necessary to delegate the inverting of the selection to the
 281         // column view, as only the selection of the active column should
 282         // get inverted.
 283         m_columnView->invertSelection();
 284     } else {
 285         QItemSelectionModel* selectionModel = itemView()->selectionModel();
 286         const QAbstractItemModel* itemModel = selectionModel->model();
 287
 288         const QModelIndex topLeft = itemModel->index(0, 0);
 289         const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 290                                                          itemModel->columnCount() - 1);
 291
 292         const QItemSelection selection(topLeft, bottomRight);
 293         selectionModel->select(selection, QItemSelectionModel::Toggle);
 294     }
 295 }
 296
 297 bool DolphinView::hasSelection() const
 298 {
 299     return itemView()->selectionModel()->hasSelection();
 300 }
 301
 302 void DolphinView::clearSelection()
 303 {
 304     itemView()->selectionModel()->clear();
 305 }
 306
 307 KFileItemList DolphinView::selectedItems() const
 308 {
 309     const QAbstractItemView* view = itemView();
 310
 311     // Our view has a selection, we will map them back to the DolphinModel
 312     // and then fill the KFileItemList.
 313     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 314
 315     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 316     KFileItemList itemList;
 317
 318     const QModelIndexList indexList = selection.indexes();
 319     foreach (QModelIndex index, indexList) {
 320         KFileItem item = m_dolphinModel->itemForIndex(index);
 321         if (!item.isNull()) {
 322             itemList.append(item);
 323         }
 324     }
 325
 326     return itemList;
 327 }
 328
 329 KUrl::List DolphinView::selectedUrls() const
 330 {
 331     KUrl::List urls;
 332     const KFileItemList list = selectedItems();
 333     foreach (KFileItem item, list) {
 334         urls.append(item.url());
 335     }
 336     return urls;
 337 }
 338
 339 KFileItem DolphinView::fileItem(const QModelIndex& index) const
 340 {
 341     const QModelIndex dolphinModelIndex = m_proxyModel->mapToSource(index);
 342     return m_dolphinModel->itemForIndex(dolphinModelIndex);
 343 }
 344
 345 void DolphinView::setContentsPosition(int x, int y)
 346 {
 347     QAbstractItemView* view = itemView();
 348
 349     // the ColumnView takes care itself for the horizontal scrolling
 350     if (!isColumnViewActive()) {
 351         view->horizontalScrollBar()->setValue(x);
 352     }
 353     view->verticalScrollBar()->setValue(y);
 354
 355     m_loadingDirectory = false;
 356 }
 357
 358 QPoint DolphinView::contentsPosition() const
 359 {
 360     const int x = itemView()->horizontalScrollBar()->value();
 361     const int y = itemView()->verticalScrollBar()->value();
 362     return QPoint(x, y);
 363 }
 364
 365 void DolphinView::zoomIn()
 366 {
 367     m_controller->triggerZoomIn();
 368 }
 369
 370 void DolphinView::zoomOut()
 371 {
 372     m_controller->triggerZoomOut();
 373 }
 374
 375 bool DolphinView::isZoomInPossible() const
 376 {
 377     return m_controller->isZoomInPossible();
 378 }
 379
 380 bool DolphinView::isZoomOutPossible() const
 381 {
 382     return m_controller->isZoomOutPossible();
 383 }
 384
 385 void DolphinView::setSorting(Sorting sorting)
 386 {
 387     if (sorting != this->sorting()) {
 388         updateSorting(sorting);
 389     }
 390 }
 391
 392 DolphinView::Sorting DolphinView::sorting() const
 393 {
 394     return m_proxyModel->sorting();
 395 }
 396
 397 void DolphinView::setSortOrder(Qt::SortOrder order)
 398 {
 399     if (sortOrder() != order) {
 400         updateSortOrder(order);
 401     }
 402 }
 403
 404 Qt::SortOrder DolphinView::sortOrder() const
 405 {
 406     return m_proxyModel->sortOrder();
 407 }
 408
 409 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 410 {
 411     const KUrl viewPropsUrl = viewPropertiesUrl();
 412     ViewProperties props(viewPropsUrl);
 413     props.setAdditionalInfo(info);
 414
 415     m_controller->setAdditionalInfoCount(info.count());
 416     m_fileItemDelegate->setShowInformation(info);
 417
 418     emit additionalInfoChanged(info);
 419     loadDirectory(viewPropsUrl, true);
 420 }
 421
 422 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 423 {
 424     return m_fileItemDelegate->showInformation();
 425 }
 426
 427 void DolphinView::reload()
 428 {
 429     setUrl(url());
 430     loadDirectory(url(), true);
 431 }
 432
 433 void DolphinView::refresh()
 434 {
 435     createView();
 436     applyViewProperties(m_controller->url());
 437     reload();
 438     updateViewportColor();
 439 }
 440
 441 void DolphinView::updateView(const KUrl& url, const KUrl& rootUrl)
 442 {
 443     if (m_controller->url() == url) {
 444         return;
 445     }
 446
 447     const bool restoreColumnView =  !rootUrl.isEmpty()
 448                                     && !rootUrl.equals(url, KUrl::CompareWithoutTrailingSlash)
 449                                     && rootUrl.isParentOf(url);
 450
 451     m_controller->setUrl(url); // emits urlChanged, which we forward
 452
 453     if (restoreColumnView) {
 454         applyViewProperties(rootUrl);
 455         loadDirectory(rootUrl);
 456         // Restoring the column view relies on the URL-history. It might be possible
 457         // that the view properties have been changed or deleted in the meantime, so
 458         // it cannot be asserted that really a column view has been created:
 459         if (itemView() == m_columnView) {
 460             m_columnView->showColumn(url);
 461         }
 462     } else {
 463         applyViewProperties(url);
 464         loadDirectory(url);
 465     }
 466
 467     itemView()->setFocus();
 468
 469     emit startedPathLoading(url);
 470 }
 471
 472 void DolphinView::setUrl(const KUrl& url)
 473 {
 474     updateView(url, KUrl());
 475 }
 476
 477 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 478 {
 479     QWidget::mouseReleaseEvent(event);
 480     setActive(true);
 481 }
 482 void DolphinView::activate()
 483 {
 484     setActive(true);
 485 }
 486
 487 void DolphinView::triggerItem(const QModelIndex& index)
 488 {
 489     Q_ASSERT(index.isValid());
 490
 491     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 492     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 493         // items are selected by the user, hence don't trigger the
 494         // item specified by 'index'
 495         return;
 496     }
 497
 498     const KFileItem item = m_dolphinModel->itemForIndex(m_proxyModel->mapToSource(index));
 499
 500     if (item.isNull()) {
 501         return;
 502     }
 503
 504     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 505 }
 506
 507 void DolphinView::generatePreviews(const KFileItemList& items)
 508 {
 509     if (m_controller->showPreview()) {
 510         KIO::PreviewJob* job = KIO::filePreview(items, 128);
 511         connect(job, SIGNAL(gotPreview(const KFileItem&, const QPixmap&)),
 512                 this, SLOT(showPreview(const KFileItem&, const QPixmap&)));
 513     }
 514 }
 515
 516 void DolphinView::showPreview(const KFileItem& item, const QPixmap& pixmap)
 517 {
 518     Q_ASSERT(!item.isNull());
 519     if (item.url().directory() != m_dirLister->url().path()) {
 520         // the preview job is still working on items of an older URL, hence
 521         // the item is not part of the directory model anymore
 522         return;
 523     }
 524
 525     const QModelIndex idx = m_dolphinModel->indexForItem(item);
 526     if (idx.isValid() && (idx.column() == 0)) {
 527         const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 528         if (KonqMimeData::decodeIsCutSelection(mimeData) && isCutItem(item)) {
 529             KIconEffect iconEffect;
 530             const QPixmap cutPixmap = iconEffect.apply(pixmap, KIconLoader::Desktop, KIconLoader::DisabledState);
 531             m_dolphinModel->setData(idx, QIcon(cutPixmap), Qt::DecorationRole);
 532         } else {
 533             m_dolphinModel->setData(idx, QIcon(pixmap), Qt::DecorationRole);
 534         }
 535     }
 536 }
 537
 538 void DolphinView::emitSelectionChangedSignal()
 539 {
 540     emit selectionChanged(DolphinView::selectedItems());
 541 }
 542
 543 void DolphinView::loadDirectory(const KUrl& url, bool reload)
 544 {
 545     if (!url.isValid()) {
 546         const QString location(url.pathOrUrl());
 547         if (location.isEmpty()) {
 548             emit errorMessage(i18nc("@info:status", "The location is empty."));
 549         } else {
 550             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
 551         }
 552         return;
 553     }
 554
 555     m_cutItemsCache.clear();
 556     m_loadingDirectory = true;
 557
 558     m_dirLister->stop();
 559     m_dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
 560
 561     if (isColumnViewActive() && reload) {
 562         // reloading the directory lister is not enough in the case of the
 563         // column view, as each column has its own directory lister internally...
 564         m_columnView->reload();
 565     }
 566 }
 567
 568 KUrl DolphinView::viewPropertiesUrl() const
 569 {
 570     if (isColumnViewActive()) {
 571         return m_dirLister->url();
 572     }
 573
 574     return url();
 575 }
 576
 577 void DolphinView::applyViewProperties(const KUrl& url)
 578 {
 579     if (isColumnViewActive() && m_dirLister->url().isParentOf(url)) {
 580         // The column view is active, hence don't apply the view properties
 581         // of sub directories (represented by columns) to the view. The
 582         // view always represents the properties of the first column.
 583         return;
 584     }
 585
 586     const ViewProperties props(url);
 587
 588     const Mode mode = props.viewMode();
 589     if (m_mode != mode) {
 590         m_mode = mode;
 591         createView();
 592         emit modeChanged();
 593     }
 594     if (itemView() == 0) {
 595         createView();
 596     }
 597     Q_ASSERT(itemView() != 0);
 598     Q_ASSERT(m_fileItemDelegate != 0);
 599
 600     const bool showHiddenFiles = props.showHiddenFiles();
 601     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
 602         m_dirLister->setShowingDotFiles(showHiddenFiles);
 603         m_controller->setShowHiddenFiles(showHiddenFiles);
 604         emit showHiddenFilesChanged();
 605     }
 606
 607     m_storedCategorizedSorting = props.categorizedSorting();
 608     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 609     if (categorized != m_proxyModel->isCategorizedModel()) {
 610         m_proxyModel->setCategorizedModel(categorized);
 611         m_proxyModel->sort(m_proxyModel->sortColumn(), m_proxyModel->sortOrder());
 612         emit categorizedSortingChanged();
 613     }
 614
 615     const DolphinView::Sorting sorting = props.sorting();
 616     if (sorting != m_proxyModel->sorting()) {
 617         m_proxyModel->setSorting(sorting);
 618         emit sortingChanged(sorting);
 619     }
 620
 621     const Qt::SortOrder sortOrder = props.sortOrder();
 622     if (sortOrder != m_proxyModel->sortOrder()) {
 623         m_proxyModel->setSortOrder(sortOrder);
 624         emit sortOrderChanged(sortOrder);
 625     }
 626
 627     KFileItemDelegate::InformationList info = props.additionalInfo();
 628     if (info != m_fileItemDelegate->showInformation()) {
 629         m_controller->setAdditionalInfoCount(info.count());
 630         m_fileItemDelegate->setShowInformation(info);
 631         emit additionalInfoChanged(info);
 632     }
 633
 634     const bool showPreview = props.showPreview();
 635     if (showPreview != m_controller->showPreview()) {
 636         m_controller->setShowPreview(showPreview);
 637         emit showPreviewChanged();
 638     }
 639 }
 640
 641 void DolphinView::changeSelection(const KFileItemList& selection)
 642 {
 643     clearSelection();
 644     if (selection.isEmpty()) {
 645         return;
 646     }
 647     const KUrl& baseUrl = url();
 648     KUrl url;
 649     QItemSelection new_selection;
 650     foreach(const KFileItem& item, selection) {
 651         url = item.url().upUrl();
 652         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 653             QModelIndex index = m_proxyModel->mapFromSource(m_dolphinModel->indexForItem(item));
 654             new_selection.select(index, index);
 655         }
 656     }
 657     itemView()->selectionModel()->select(new_selection,
 658                                          QItemSelectionModel::ClearAndSelect
 659                                          | QItemSelectionModel::Current);
 660 }
 661
 662 void DolphinView::openContextMenu(const QPoint& pos)
 663 {
 664     KFileItem item;
 665
 666     const QModelIndex index = itemView()->indexAt(pos);
 667     if (isValidNameIndex(index)) {
 668         item = fileItem(index);
 669     }
 670
 671     emit requestContextMenu(item, url());
 672 }
 673
 674 void DolphinView::dropUrls(const KUrl::List& urls,
 675                            const KUrl& destPath,
 676                            const QModelIndex& destIndex,
 677                            QWidget* source)
 678 {
 679     KFileItem directory;
 680     if (isValidNameIndex(destIndex)) {
 681         KFileItem item = fileItem(destIndex);
 682         Q_ASSERT(!item.isNull());
 683         if (item.isDir()) {
 684             // the URLs are dropped above a directory
 685             directory = item;
 686         }
 687     }
 688
 689     if ((directory.isNull()) && (source == itemView())) {
 690         // The dropping is done into the same viewport where
 691         // the dragging has been started. Just ignore this...
 692         return;
 693     }
 694
 695     const KUrl& destination = (directory.isNull()) ?
 696                               destPath : directory.url();
 697     dropUrls(urls, destination);
 698 }
 699
 700 void DolphinView::dropUrls(const KUrl::List& urls,
 701                            const KUrl& destination)
 702 {
 703     emit urlsDropped(urls, destination);
 704 }
 705
 706 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 707 {
 708     ViewProperties props(viewPropertiesUrl());
 709     props.setSorting(sorting);
 710
 711     m_proxyModel->setSorting(sorting);
 712
 713     emit sortingChanged(sorting);
 714 }
 715
 716 void DolphinView::updateSortOrder(Qt::SortOrder order)
 717 {
 718     ViewProperties props(viewPropertiesUrl());
 719     props.setSortOrder(order);
 720
 721     m_proxyModel->setSortOrder(order);
 722
 723     emit sortOrderChanged(order);
 724 }
 725
 726 void DolphinView::emitContentsMoved()
 727 {
 728     // only emit the contents moved signal if:
 729     // - no directory loading is ongoing (this would reset the contents position
 730     //   always to (0, 0))
 731     // - if the Column View is active: the column view does an automatic
 732     //   positioning during the loading operation, which must be remembered
 733     if (!m_loadingDirectory || isColumnViewActive()) {
 734         const QPoint pos(contentsPosition());
 735         emit contentsMoved(pos.x(), pos.y());
 736     }
 737 }
 738
 739 void DolphinView::updateCutItems()
 740 {
 741     // restore the icons of all previously selected items to the
 742     // original state...
 743     QList<CutItem>::const_iterator it = m_cutItemsCache.begin();
 744     QList<CutItem>::const_iterator end = m_cutItemsCache.end();
 745     while (it != end) {
 746         const QModelIndex index = m_dolphinModel->indexForUrl((*it).url);
 747         if (index.isValid()) {
 748             m_dolphinModel->setData(index, QIcon((*it).pixmap), Qt::DecorationRole);
 749         }
 750         ++it;
 751     }
 752     m_cutItemsCache.clear();
 753
 754     // ... and apply an item effect to all currently cut items
 755     applyCutItemEffect();
 756 }
 757
 758 void DolphinView::showHoverInformation(const KFileItem& item)
 759 {
 760     if (hasSelection()) {
 761         return;
 762     }
 763
 764     emit requestItemInfo(item);
 765 }
 766
 767 void DolphinView::clearHoverInformation()
 768 {
 769     emit requestItemInfo(KFileItem());
 770 }
 771
 772
 773 void DolphinView::createView()
 774 {
 775     KFileItemDelegate::InformationList infoList;
 776     if (m_fileItemDelegate != 0) {
 777         infoList = m_fileItemDelegate->showInformation();
 778     }
 779
 780     // delete current view
 781     QAbstractItemView* view = itemView();
 782     if (view != 0) {
 783         m_topLayout->removeWidget(view);
 784         view->close();
 785         view->deleteLater();
 786         view = 0;
 787         m_iconsView = 0;
 788         m_detailsView = 0;
 789         m_columnView = 0;
 790         m_fileItemDelegate = 0;
 791     }
 792
 793     Q_ASSERT(m_iconsView == 0);
 794     Q_ASSERT(m_detailsView == 0);
 795     Q_ASSERT(m_columnView == 0);
 796
 797     // ... and recreate it representing the current mode
 798     switch (m_mode) {
 799     case IconsView: {
 800         m_iconsView = new DolphinIconsView(this, m_controller);
 801         view = m_iconsView;
 802         break;
 803     }
 804
 805     case DetailsView:
 806         m_detailsView = new DolphinDetailsView(this, m_controller);
 807         view = m_detailsView;
 808         break;
 809
 810     case ColumnView:
 811         m_columnView = new DolphinColumnView(this, m_controller);
 812         view = m_columnView;
 813         break;
 814     }
 815
 816     Q_ASSERT(view != 0);
 817
 818     m_fileItemDelegate = new KFileItemDelegate(view);
 819     m_fileItemDelegate->setShowInformation(infoList);
 820     view->setItemDelegate(m_fileItemDelegate);
 821
 822     view->setModel(m_proxyModel);
 823     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
 824
 825     new KMimeTypeResolver(view, m_dolphinModel);
 826     m_topLayout->insertWidget(1, view);
 827
 828     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
 829             this, SLOT(emitSelectionChangedSignal()));
 830     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
 831             this, SLOT(emitContentsMoved()));
 832     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
 833             this, SLOT(emitContentsMoved()));
 834     view->setFocus();
 835 }
 836
 837 QAbstractItemView* DolphinView::itemView() const
 838 {
 839     if (m_detailsView != 0) {
 840         return m_detailsView;
 841     } else if (m_columnView != 0) {
 842         return m_columnView;
 843     }
 844
 845     return m_iconsView;
 846 }
 847
 848 bool DolphinView::isValidNameIndex(const QModelIndex& index) const
 849 {
 850     return index.isValid() && (index.column() == DolphinModel::Name);
 851 }
 852
 853 bool DolphinView::isCutItem(const KFileItem& item) const
 854 {
 855     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 856     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
 857
 858     const KUrl& itemUrl = item.url();
 859     KUrl::List::const_iterator it = cutUrls.begin();
 860     const KUrl::List::const_iterator end = cutUrls.end();
 861     while (it != end) {
 862         if (*it == itemUrl) {
 863             return true;
 864         }
 865         ++it;
 866     }
 867
 868     return false;
 869 }
 870
 871 void DolphinView::applyCutItemEffect()
 872 {
 873     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 874     if (!KonqMimeData::decodeIsCutSelection(mimeData)) {
 875         return;
 876     }
 877
 878     KFileItemList items(m_dirLister->items());
 879     KFileItemList::const_iterator it = items.begin();
 880     const KFileItemList::const_iterator end = items.end();
 881     while (it != end) {
 882         const KFileItem item = *it;
 883         if (isCutItem(item)) {
 884             const QModelIndex index = m_dolphinModel->indexForItem(item);
 885             // Huh? the item is already known
 886             //const KFileItem item = m_dolphinModel->itemForIndex(index);
 887             const QVariant value = m_dolphinModel->data(index, Qt::DecorationRole);
 888             if (value.type() == QVariant::Icon) {
 889                 const QIcon icon(qvariant_cast<QIcon>(value));
 890                 QPixmap pixmap = icon.pixmap(128, 128);
 891
 892                 // remember current pixmap for the item to be able
 893                 // to restore it when other items get cut
 894                 CutItem cutItem;
 895                 cutItem.url = item.url();
 896                 cutItem.pixmap = pixmap;
 897                 m_cutItemsCache.append(cutItem);
 898
 899                 // apply icon effect to the cut item
 900                 KIconEffect iconEffect;
 901                 pixmap = iconEffect.apply(pixmap, KIconLoader::Desktop, KIconLoader::DisabledState);
 902                 m_dolphinModel->setData(index, QIcon(pixmap), Qt::DecorationRole);
 903             }
 904         }
 905         ++it;
 906     }
 907 }
 908
 909 void DolphinView::updateViewportColor()
 910 {
 911     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 912     if (m_active) {
 913         emit urlChanged(url()); // Hmm, this is a hack; the url hasn't really changed.
 914         emit selectionChanged(selectedItems());
 915     } else {
 916         color.setAlpha(0);
 917     }
 918
 919     QWidget* viewport = itemView()->viewport();
 920     QPalette palette;
 921     palette.setColor(viewport->backgroundRole(), color);
 922     viewport->setPalette(palette);
 923 }
 924
 925 #include "dolphinview.moc"