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 #include <ktoggleaction.h>
  23 #include <kactioncollection.h>
  24
  25 #include <QApplication>
  26 #include <QClipboard>
  27 #include <QKeyEvent>
  28 #include <QItemSelection>
  29 #include <QBoxLayout>
  30 #include <QTimer>
  31 #include <QScrollBar>
  32
  33 #include <kcolorscheme.h>
  34 #include <kdirlister.h>
  35 #include <kfileitemdelegate.h>
  36 #include <klocale.h>
  37 #include <kiconeffect.h>
  38 #include <kio/netaccess.h>
  39 #include <kio/renamedialog.h>
  40 #include <kio/previewjob.h>
  41 #include <kmimetyperesolver.h>
  42 #include <konqmimedata.h>
  43 #include <konq_operations.h>
  44 #include <kurl.h>
  45
  46 #include "dolphinmodel.h"
  47 #include "dolphincolumnview.h"
  48 #include "dolphincontroller.h"
  49 #include "dolphinsortfilterproxymodel.h"
  50 #include "dolphindetailsview.h"
  51 #include "dolphiniconsview.h"
  52 #include "renamedialog.h"
  53 #include "viewproperties.h"
  54 #include "dolphinsettings.h"
  55 #include "dolphin_generalsettings.h"
  56
  57 DolphinView::DolphinView(QWidget* parent,
  58                          const KUrl& url,
  59                          KDirLister* dirLister,
  60                          DolphinModel* dolphinModel,
  61                          DolphinSortFilterProxyModel* proxyModel) :
  62     QWidget(parent),
  63     m_active(true),
  64     m_loadingDirectory(false),
  65     m_storedCategorizedSorting(false),
  66     m_mode(DolphinView::IconsView),
  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_dolphinModel(dolphinModel),
  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
  94     // Receiver of the DolphinView signal 'urlChanged()' don't need
  95     // to care whether the internal controller changed the URL already or whether
  96     // the controller just requested an URL change and will be updated later.
  97     // In both cases the URL has been changed:
  98     connect(m_controller, SIGNAL(urlChanged(const KUrl&)),
  99             this, SIGNAL(urlChanged(const KUrl&)));
 100     connect(m_controller, SIGNAL(requestUrlChange(const KUrl&)),
 101             this, SIGNAL(urlChanged(const KUrl&)));
 102
 103     connect(m_controller, SIGNAL(requestContextMenu(const QPoint&)),
 104             this, SLOT(openContextMenu(const QPoint&)));
 105     connect(m_controller, SIGNAL(urlsDropped(const KUrl::List&, const KUrl&, const QModelIndex&, QWidget*)),
 106             this, SLOT(dropUrls(const KUrl::List&, const KUrl&, const QModelIndex&, QWidget*)));
 107     connect(m_controller, SIGNAL(sortingChanged(DolphinView::Sorting)),
 108             this, SLOT(updateSorting(DolphinView::Sorting)));
 109     connect(m_controller, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 110             this, SLOT(updateSortOrder(Qt::SortOrder)));
 111     connect(m_controller, SIGNAL(itemTriggered(const KFileItem&)),
 112             this, SLOT(triggerItem(const KFileItem&)));
 113     connect(m_controller, SIGNAL(activated()),
 114             this, SLOT(activate()));
 115     connect(m_controller, SIGNAL(itemEntered(const KFileItem&)),
 116             this, SLOT(showHoverInformation(const KFileItem&)));
 117     connect(m_controller, SIGNAL(viewportEntered()),
 118             this, SLOT(clearHoverInformation()));
 119
 120     applyViewProperties(url);
 121     m_topLayout->addWidget(itemView());
 122 }
 123
 124 DolphinView::~DolphinView()
 125 {
 126 }
 127
 128 const KUrl& DolphinView::url() const
 129 {
 130     return m_controller->url();
 131 }
 132
 133 KUrl DolphinView::rootUrl() const
 134 {
 135     return isColumnViewActive() ? m_columnView->rootUrl() : url();
 136 }
 137
 138 void DolphinView::setActive(bool active)
 139 {
 140     if (active == m_active) {
 141         return;
 142     }
 143
 144     m_active = active;
 145
 146     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 147     if (active) {
 148         // TODO: emitting urlChanged() is a hack, as the URL hasn't really changed. It
 149         // bypasses the problem when having a split view and changing the active view to
 150         // update the some URL dependent states. A nicer approach should be no big deal...
 151         emit urlChanged(url());
 152         emit selectionChanged(selectedItems());
 153     } else {
 154         color.setAlpha(150);
 155     }
 156
 157     QWidget* viewport = itemView()->viewport();
 158     QPalette palette;
 159     palette.setColor(viewport->backgroundRole(), color);
 160     viewport->setPalette(palette);
 161
 162     update();
 163
 164     if (active) {
 165         emit activated();
 166     }
 167
 168     m_controller->indicateActivationChange(active);
 169 }
 170
 171 bool DolphinView::isActive() const
 172 {
 173     return m_active;
 174 }
 175
 176 void DolphinView::setMode(Mode mode)
 177 {
 178     if (mode == m_mode) {
 179         return; // the wished mode is already set
 180     }
 181
 182     m_mode = mode;
 183
 184     if (isColumnViewActive()) {
 185         // When changing the mode in the column view, it makes sense
 186         // to go back to the root URL of the column view automatically.
 187         // Otherwise there it would not be possible to turn off the column view
 188         // without focusing the first column.
 189         const KUrl root = rootUrl();
 190         setUrl(root);
 191         m_controller->setUrl(root);
 192     }
 193
 194     const KUrl viewPropsUrl = viewPropertiesUrl();
 195     ViewProperties props(viewPropsUrl);
 196     props.setViewMode(m_mode);
 197
 198     createView();
 199
 200     // Not all view modes support categorized sorting. Adjust the sorting model
 201     // if changing the view mode results in a change of the categorized sorting
 202     // capabilities.
 203     m_storedCategorizedSorting = props.categorizedSorting();
 204     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 205     if (categorized != m_proxyModel->isCategorizedModel()) {
 206         m_proxyModel->setCategorizedModel(categorized);
 207         emit categorizedSortingChanged();
 208     }
 209
 210     loadDirectory(viewPropsUrl);
 211
 212     emit modeChanged();
 213 }
 214
 215 DolphinView::Mode DolphinView::mode() const
 216 {
 217     return m_mode;
 218 }
 219
 220 void DolphinView::setShowPreview(bool show)
 221 {
 222     const KUrl viewPropsUrl = viewPropertiesUrl();
 223     ViewProperties props(viewPropsUrl);
 224     props.setShowPreview(show);
 225
 226     m_controller->setShowPreview(show);
 227     emit showPreviewChanged();
 228
 229     loadDirectory(viewPropsUrl, true);
 230 }
 231
 232 bool DolphinView::showPreview() const
 233 {
 234     return m_controller->showPreview();
 235 }
 236
 237 void DolphinView::setShowHiddenFiles(bool show)
 238 {
 239     if (m_dirLister->showingDotFiles() == show) {
 240         return;
 241     }
 242
 243     const KUrl viewPropsUrl = viewPropertiesUrl();
 244     ViewProperties props(viewPropsUrl);
 245     props.setShowHiddenFiles(show);
 246
 247     m_dirLister->setShowingDotFiles(show);
 248     m_controller->setShowHiddenFiles(show);
 249     emit showHiddenFilesChanged();
 250
 251     loadDirectory(viewPropsUrl, true);
 252 }
 253
 254 bool DolphinView::showHiddenFiles() const
 255 {
 256     return m_dirLister->showingDotFiles();
 257 }
 258
 259 void DolphinView::setCategorizedSorting(bool categorized)
 260 {
 261     if (categorized == categorizedSorting()) {
 262         return;
 263     }
 264
 265     // setCategorizedSorting(true) may only get invoked
 266     // if the view supports categorized sorting
 267     Q_ASSERT(!categorized || supportsCategorizedSorting());
 268
 269     ViewProperties props(viewPropertiesUrl());
 270     props.setCategorizedSorting(categorized);
 271     props.save();
 272
 273     m_storedCategorizedSorting = categorized;
 274     m_proxyModel->setCategorizedModel(categorized);
 275
 276     emit categorizedSortingChanged();
 277 }
 278
 279 bool DolphinView::categorizedSorting() const
 280 {
 281     // If all view modes would support categorized sorting, returning
 282     // m_proxyModel->isCategorizedModel() would be the way to go. As
 283     // currently only the icons view supports caterized sorting, we remember
 284     // the stored view properties state in m_storedCategorizedSorting and
 285     // return this state. The application takes care to disable the corresponding
 286     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 287     // that this setting is not applied to the current view mode.
 288     return m_storedCategorizedSorting;
 289 }
 290
 291 bool DolphinView::supportsCategorizedSorting() const
 292 {
 293     return m_iconsView != 0;
 294 }
 295
 296 void DolphinView::selectAll()
 297 {
 298     itemView()->selectAll();
 299 }
 300
 301 void DolphinView::invertSelection()
 302 {
 303     if (isColumnViewActive()) {
 304         // QAbstractItemView does not offer a virtual method invertSelection()
 305         // as counterpart to QAbstractItemView::selectAll(). This makes it
 306         // necessary to delegate the inverting of the selection to the
 307         // column view, as only the selection of the active column should
 308         // get inverted.
 309         m_columnView->invertSelection();
 310     } else {
 311         QItemSelectionModel* selectionModel = itemView()->selectionModel();
 312         const QAbstractItemModel* itemModel = selectionModel->model();
 313
 314         const QModelIndex topLeft = itemModel->index(0, 0);
 315         const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 316                                                          itemModel->columnCount() - 1);
 317
 318         const QItemSelection selection(topLeft, bottomRight);
 319         selectionModel->select(selection, QItemSelectionModel::Toggle);
 320     }
 321 }
 322
 323 bool DolphinView::hasSelection() const
 324 {
 325     return itemView()->selectionModel()->hasSelection();
 326 }
 327
 328 void DolphinView::clearSelection()
 329 {
 330     itemView()->selectionModel()->clear();
 331 }
 332
 333 KFileItemList DolphinView::selectedItems() const
 334 {
 335     const QAbstractItemView* view = itemView();
 336
 337     // Our view has a selection, we will map them back to the DolphinModel
 338     // and then fill the KFileItemList.
 339     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 340
 341     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 342     KFileItemList itemList;
 343
 344     const QModelIndexList indexList = selection.indexes();
 345     foreach (QModelIndex index, indexList) {
 346         KFileItem item = m_dolphinModel->itemForIndex(index);
 347         if (!item.isNull()) {
 348             itemList.append(item);
 349         }
 350     }
 351
 352     return itemList;
 353 }
 354
 355 KUrl::List DolphinView::selectedUrls() const
 356 {
 357     KUrl::List urls;
 358     const KFileItemList list = selectedItems();
 359     foreach (KFileItem item, list) {
 360         urls.append(item.url());
 361     }
 362     return urls;
 363 }
 364
 365 KFileItem DolphinView::fileItem(const QModelIndex& index) const
 366 {
 367     const QModelIndex dolphinModelIndex = m_proxyModel->mapToSource(index);
 368     return m_dolphinModel->itemForIndex(dolphinModelIndex);
 369 }
 370
 371 void DolphinView::setContentsPosition(int x, int y)
 372 {
 373     QAbstractItemView* view = itemView();
 374
 375     // the ColumnView takes care itself for the horizontal scrolling
 376     if (!isColumnViewActive()) {
 377         view->horizontalScrollBar()->setValue(x);
 378     }
 379     view->verticalScrollBar()->setValue(y);
 380
 381     m_loadingDirectory = false;
 382 }
 383
 384 QPoint DolphinView::contentsPosition() const
 385 {
 386     const int x = itemView()->horizontalScrollBar()->value();
 387     const int y = itemView()->verticalScrollBar()->value();
 388     return QPoint(x, y);
 389 }
 390
 391 void DolphinView::zoomIn()
 392 {
 393     m_controller->triggerZoomIn();
 394 }
 395
 396 void DolphinView::zoomOut()
 397 {
 398     m_controller->triggerZoomOut();
 399 }
 400
 401 bool DolphinView::isZoomInPossible() const
 402 {
 403     return m_controller->isZoomInPossible();
 404 }
 405
 406 bool DolphinView::isZoomOutPossible() const
 407 {
 408     return m_controller->isZoomOutPossible();
 409 }
 410
 411 void DolphinView::setSorting(Sorting sorting)
 412 {
 413     if (sorting != this->sorting()) {
 414         updateSorting(sorting);
 415     }
 416 }
 417
 418 DolphinView::Sorting DolphinView::sorting() const
 419 {
 420     return m_proxyModel->sorting();
 421 }
 422
 423 void DolphinView::setSortOrder(Qt::SortOrder order)
 424 {
 425     if (sortOrder() != order) {
 426         updateSortOrder(order);
 427     }
 428 }
 429
 430 Qt::SortOrder DolphinView::sortOrder() const
 431 {
 432     return m_proxyModel->sortOrder();
 433 }
 434
 435 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 436 {
 437     const KUrl viewPropsUrl = viewPropertiesUrl();
 438     ViewProperties props(viewPropsUrl);
 439     props.setAdditionalInfo(info);
 440
 441     m_controller->setAdditionalInfoCount(info.count());
 442     m_fileItemDelegate->setShowInformation(info);
 443
 444     emit additionalInfoChanged(info);
 445     loadDirectory(viewPropsUrl, true);
 446 }
 447
 448 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 449 {
 450     return m_fileItemDelegate->showInformation();
 451 }
 452
 453 void DolphinView::reload()
 454 {
 455     setUrl(url());
 456     loadDirectory(url(), true);
 457 }
 458
 459 void DolphinView::refresh()
 460 {
 461     const bool oldActivationState = m_active;
 462     m_active = true;
 463
 464     createView();
 465     applyViewProperties(m_controller->url());
 466     reload();
 467
 468     setActive(oldActivationState);
 469 }
 470
 471 void DolphinView::updateView(const KUrl& url, const KUrl& rootUrl)
 472 {
 473     if (m_controller->url() == url) {
 474         return;
 475     }
 476
 477     m_controller->setUrl(url); // emits urlChanged, which we forward
 478
 479     if (!rootUrl.isEmpty() && rootUrl.isParentOf(url)) {
 480         applyViewProperties(rootUrl);
 481         loadDirectory(rootUrl);
 482         if (itemView() == m_columnView) {
 483             m_columnView->setRootUrl(rootUrl);
 484             m_columnView->showColumn(url);
 485         }
 486     } else {
 487         applyViewProperties(url);
 488         loadDirectory(url);
 489     }
 490
 491     emit startedPathLoading(url);
 492 }
 493
 494 void DolphinView::setNameFilter(const QString& nameFilter)
 495 {
 496     // The name filter of KDirLister does a 'hard' filtering, which
 497     // means that only the items are shown where the names match
 498     // exactly the filter. This is non-transparent for the user, which
 499     // just wants to have a 'soft' filtering: does the name contain
 500     // the filter string?
 501     QString adjustedFilter(nameFilter);
 502     adjustedFilter.insert(0, '*');
 503     adjustedFilter.append('*');
 504
 505     m_dirLister->setNameFilter(adjustedFilter);
 506     m_dirLister->emitChanges();
 507
 508     if (isColumnViewActive()) {
 509         // adjusting the directory lister is not enough in the case of the
 510         // column view, as each column has its own directory lister internally...
 511         m_columnView->setNameFilter(nameFilter);
 512     }
 513 }
 514
 515 void DolphinView::calculateItemCount(int& fileCount, int& folderCount)
 516 {
 517     foreach (KFileItem item, m_dirLister->items()) {
 518         if (item.isDir()) {
 519             ++folderCount;
 520         } else {
 521             ++fileCount;
 522         }
 523     }
 524 }
 525
 526 void DolphinView::setUrl(const KUrl& url)
 527 {
 528     updateView(url, KUrl());
 529 }
 530
 531 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 532 {
 533     QWidget::mouseReleaseEvent(event);
 534     setActive(true);
 535 }
 536 void DolphinView::activate()
 537 {
 538     setActive(true);
 539 }
 540
 541 void DolphinView::triggerItem(const KFileItem& item)
 542 {
 543     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 544     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 545         // items are selected by the user, hence don't trigger the
 546         // item specified by 'index'
 547         return;
 548     }
 549
 550     if (item.isNull()) {
 551         return;
 552     }
 553
 554     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 555 }
 556
 557 void DolphinView::generatePreviews(const KFileItemList& items)
 558 {
 559     if (m_controller->showPreview()) {
 560         KIO::PreviewJob* job = KIO::filePreview(items, 128);
 561         connect(job, SIGNAL(gotPreview(const KFileItem&, const QPixmap&)),
 562                 this, SLOT(showPreview(const KFileItem&, const QPixmap&)));
 563     }
 564 }
 565
 566 void DolphinView::showPreview(const KFileItem& item, const QPixmap& pixmap)
 567 {
 568     Q_ASSERT(!item.isNull());
 569     if (item.url().directory() != m_dirLister->url().path()) {
 570         // the preview job is still working on items of an older URL, hence
 571         // the item is not part of the directory model anymore
 572         return;
 573     }
 574
 575     const QModelIndex idx = m_dolphinModel->indexForItem(item);
 576     if (idx.isValid() && (idx.column() == 0)) {
 577         const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 578         if (KonqMimeData::decodeIsCutSelection(mimeData) && isCutItem(item)) {
 579             KIconEffect iconEffect;
 580             const QPixmap cutPixmap = iconEffect.apply(pixmap, KIconLoader::Desktop, KIconLoader::DisabledState);
 581             m_dolphinModel->setData(idx, QIcon(cutPixmap), Qt::DecorationRole);
 582         } else {
 583             m_dolphinModel->setData(idx, QIcon(pixmap), Qt::DecorationRole);
 584         }
 585     }
 586 }
 587
 588 void DolphinView::emitSelectionChangedSignal()
 589 {
 590     emit selectionChanged(DolphinView::selectedItems());
 591 }
 592
 593 void DolphinView::loadDirectory(const KUrl& url, bool reload)
 594 {
 595     if (!url.isValid()) {
 596         const QString location(url.pathOrUrl());
 597         if (location.isEmpty()) {
 598             emit errorMessage(i18nc("@info:status", "The location is empty."));
 599         } else {
 600             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
 601         }
 602         return;
 603     }
 604
 605     m_cutItemsCache.clear();
 606     m_loadingDirectory = true;
 607
 608     m_dirLister->stop();
 609     m_dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
 610
 611     if (isColumnViewActive()) {
 612         // adjusting the directory lister is not enough in the case of the
 613         // column view, as each column has its own directory lister internally...
 614         if (reload) {
 615             m_columnView->reload();
 616         } else {
 617             m_columnView->showColumn(url);
 618         }
 619     }
 620 }
 621
 622 KUrl DolphinView::viewPropertiesUrl() const
 623 {
 624     if (isColumnViewActive()) {
 625         return m_dirLister->url();
 626     }
 627
 628     return url();
 629 }
 630
 631 void DolphinView::applyViewProperties(const KUrl& url)
 632 {
 633     if (isColumnViewActive() && rootUrl().isParentOf(url)) {
 634         // The column view is active, hence don't apply the view properties
 635         // of sub directories (represented by columns) to the view. The
 636         // view always represents the properties of the first column.
 637         return;
 638     }
 639
 640     const ViewProperties props(url);
 641
 642     const Mode mode = props.viewMode();
 643     if (m_mode != mode) {
 644         m_mode = mode;
 645         createView();
 646         emit modeChanged();
 647     }
 648     if (itemView() == 0) {
 649         createView();
 650     }
 651     Q_ASSERT(itemView() != 0);
 652     Q_ASSERT(m_fileItemDelegate != 0);
 653
 654     const bool showHiddenFiles = props.showHiddenFiles();
 655     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
 656         m_dirLister->setShowingDotFiles(showHiddenFiles);
 657         m_controller->setShowHiddenFiles(showHiddenFiles);
 658         emit showHiddenFilesChanged();
 659     }
 660
 661     m_storedCategorizedSorting = props.categorizedSorting();
 662     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 663     if (categorized != m_proxyModel->isCategorizedModel()) {
 664         m_proxyModel->setCategorizedModel(categorized);
 665         emit categorizedSortingChanged();
 666     }
 667
 668     const DolphinView::Sorting sorting = props.sorting();
 669     if (sorting != m_proxyModel->sorting()) {
 670         m_proxyModel->setSorting(sorting);
 671         emit sortingChanged(sorting);
 672     }
 673
 674     const Qt::SortOrder sortOrder = props.sortOrder();
 675     if (sortOrder != m_proxyModel->sortOrder()) {
 676         m_proxyModel->setSortOrder(sortOrder);
 677         emit sortOrderChanged(sortOrder);
 678     }
 679
 680     KFileItemDelegate::InformationList info = props.additionalInfo();
 681     if (info != m_fileItemDelegate->showInformation()) {
 682         m_controller->setAdditionalInfoCount(info.count());
 683         m_fileItemDelegate->setShowInformation(info);
 684         emit additionalInfoChanged(info);
 685     }
 686
 687     const bool showPreview = props.showPreview();
 688     if (showPreview != m_controller->showPreview()) {
 689         m_controller->setShowPreview(showPreview);
 690         emit showPreviewChanged();
 691     }
 692 }
 693
 694 void DolphinView::changeSelection(const KFileItemList& selection)
 695 {
 696     clearSelection();
 697     if (selection.isEmpty()) {
 698         return;
 699     }
 700     const KUrl& baseUrl = url();
 701     KUrl url;
 702     QItemSelection new_selection;
 703     foreach(const KFileItem& item, selection) {
 704         url = item.url().upUrl();
 705         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 706             QModelIndex index = m_proxyModel->mapFromSource(m_dolphinModel->indexForItem(item));
 707             new_selection.select(index, index);
 708         }
 709     }
 710     itemView()->selectionModel()->select(new_selection,
 711                                          QItemSelectionModel::ClearAndSelect
 712                                          | QItemSelectionModel::Current);
 713 }
 714
 715 void DolphinView::openContextMenu(const QPoint& pos)
 716 {
 717     KFileItem item;
 718
 719     const QModelIndex index = itemView()->indexAt(pos);
 720     if (isValidNameIndex(index)) {
 721         item = fileItem(index);
 722     }
 723
 724     emit requestContextMenu(item, url());
 725 }
 726
 727 void DolphinView::dropUrls(const KUrl::List& urls,
 728                            const KUrl& destPath,
 729                            const QModelIndex& destIndex,
 730                            QWidget* source)
 731 {
 732     KFileItem directory;
 733     if (isValidNameIndex(destIndex)) {
 734         KFileItem item = fileItem(destIndex);
 735         Q_ASSERT(!item.isNull());
 736         if (item.isDir()) {
 737             // the URLs are dropped above a directory
 738             directory = item;
 739         }
 740     }
 741
 742     if ((directory.isNull()) && (source == itemView())) {
 743         // The dropping is done into the same viewport where
 744         // the dragging has been started. Just ignore this...
 745         return;
 746     }
 747
 748     const KUrl& destination = (directory.isNull()) ?
 749                               destPath : directory.url();
 750     dropUrls(urls, destination);
 751 }
 752
 753 void DolphinView::dropUrls(const KUrl::List& urls,
 754                            const KUrl& destination)
 755 {
 756     emit urlsDropped(urls, destination);
 757 }
 758
 759 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 760 {
 761     ViewProperties props(viewPropertiesUrl());
 762     props.setSorting(sorting);
 763
 764     m_proxyModel->setSorting(sorting);
 765
 766     emit sortingChanged(sorting);
 767 }
 768
 769 void DolphinView::updateSortOrder(Qt::SortOrder order)
 770 {
 771     ViewProperties props(viewPropertiesUrl());
 772     props.setSortOrder(order);
 773
 774     m_proxyModel->setSortOrder(order);
 775
 776     emit sortOrderChanged(order);
 777 }
 778
 779 void DolphinView::emitContentsMoved()
 780 {
 781     // only emit the contents moved signal if:
 782     // - no directory loading is ongoing (this would reset the contents position
 783     //   always to (0, 0))
 784     // - if the Column View is active: the column view does an automatic
 785     //   positioning during the loading operation, which must be remembered
 786     if (!m_loadingDirectory || isColumnViewActive()) {
 787         const QPoint pos(contentsPosition());
 788         emit contentsMoved(pos.x(), pos.y());
 789     }
 790 }
 791
 792 void DolphinView::updateCutItems()
 793 {
 794     // restore the icons of all previously selected items to the
 795     // original state...
 796     QList<CutItem>::const_iterator it = m_cutItemsCache.begin();
 797     QList<CutItem>::const_iterator end = m_cutItemsCache.end();
 798     while (it != end) {
 799         const QModelIndex index = m_dolphinModel->indexForUrl((*it).url);
 800         if (index.isValid()) {
 801             m_dolphinModel->setData(index, QIcon((*it).pixmap), Qt::DecorationRole);
 802         }
 803         ++it;
 804     }
 805     m_cutItemsCache.clear();
 806
 807     // ... and apply an item effect to all currently cut items
 808     applyCutItemEffect();
 809 }
 810
 811 void DolphinView::showHoverInformation(const KFileItem& item)
 812 {
 813     if (hasSelection()) {
 814         return;
 815     }
 816
 817     emit requestItemInfo(item);
 818 }
 819
 820 void DolphinView::clearHoverInformation()
 821 {
 822     emit requestItemInfo(KFileItem());
 823 }
 824
 825
 826 void DolphinView::createView()
 827 {
 828     KFileItemDelegate::InformationList infoList;
 829     if (m_fileItemDelegate != 0) {
 830         infoList = m_fileItemDelegate->showInformation();
 831     }
 832
 833     // delete current view
 834     QAbstractItemView* view = itemView();
 835     if (view != 0) {
 836         m_topLayout->removeWidget(view);
 837         view->close();
 838         view->deleteLater();
 839         view = 0;
 840         m_iconsView = 0;
 841         m_detailsView = 0;
 842         m_columnView = 0;
 843         m_fileItemDelegate = 0;
 844     }
 845
 846     Q_ASSERT(m_iconsView == 0);
 847     Q_ASSERT(m_detailsView == 0);
 848     Q_ASSERT(m_columnView == 0);
 849
 850     // ... and recreate it representing the current mode
 851     switch (m_mode) {
 852     case IconsView: {
 853         m_iconsView = new DolphinIconsView(this, m_controller);
 854         view = m_iconsView;
 855         break;
 856     }
 857
 858     case DetailsView:
 859         m_detailsView = new DolphinDetailsView(this, m_controller);
 860         view = m_detailsView;
 861         break;
 862
 863     case ColumnView:
 864         m_columnView = new DolphinColumnView(this, m_controller);
 865         view = m_columnView;
 866         break;
 867     }
 868
 869     Q_ASSERT(view != 0);
 870
 871     m_fileItemDelegate = new KFileItemDelegate(view);
 872     m_fileItemDelegate->setShowInformation(infoList);
 873     view->setItemDelegate(m_fileItemDelegate);
 874
 875     view->setModel(m_proxyModel);
 876     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
 877
 878     new KMimeTypeResolver(view, m_dolphinModel);
 879     m_topLayout->insertWidget(1, view);
 880
 881     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
 882             this, SLOT(emitSelectionChangedSignal()));
 883     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
 884             this, SLOT(emitContentsMoved()));
 885     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
 886             this, SLOT(emitContentsMoved()));
 887 }
 888
 889 QAbstractItemView* DolphinView::itemView() const
 890 {
 891     if (m_detailsView != 0) {
 892         return m_detailsView;
 893     } else if (m_columnView != 0) {
 894         return m_columnView;
 895     }
 896
 897     return m_iconsView;
 898 }
 899
 900 bool DolphinView::isValidNameIndex(const QModelIndex& index) const
 901 {
 902     return index.isValid() && (index.column() == DolphinModel::Name);
 903 }
 904
 905 bool DolphinView::isCutItem(const KFileItem& item) const
 906 {
 907     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 908     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
 909
 910     const KUrl& itemUrl = item.url();
 911     KUrl::List::const_iterator it = cutUrls.begin();
 912     const KUrl::List::const_iterator end = cutUrls.end();
 913     while (it != end) {
 914         if (*it == itemUrl) {
 915             return true;
 916         }
 917         ++it;
 918     }
 919
 920     return false;
 921 }
 922
 923 void DolphinView::applyCutItemEffect()
 924 {
 925     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 926     if (!KonqMimeData::decodeIsCutSelection(mimeData)) {
 927         return;
 928     }
 929
 930     KFileItemList items(m_dirLister->items());
 931     KFileItemList::const_iterator it = items.begin();
 932     const KFileItemList::const_iterator end = items.end();
 933     while (it != end) {
 934         const KFileItem item = *it;
 935         if (isCutItem(item)) {
 936             const QModelIndex index = m_dolphinModel->indexForItem(item);
 937             const QVariant value = m_dolphinModel->data(index, Qt::DecorationRole);
 938             if (value.type() == QVariant::Icon) {
 939                 const QIcon icon(qvariant_cast<QIcon>(value));
 940                 QPixmap pixmap = icon.pixmap(128, 128);
 941
 942                 // remember current pixmap for the item to be able
 943                 // to restore it when other items get cut
 944                 CutItem cutItem;
 945                 cutItem.url = item.url();
 946                 cutItem.pixmap = pixmap;
 947                 m_cutItemsCache.append(cutItem);
 948
 949                 // apply icon effect to the cut item
 950                 KIconEffect iconEffect;
 951                 pixmap = iconEffect.apply(pixmap, KIconLoader::Desktop, KIconLoader::DisabledState);
 952                 m_dolphinModel->setData(index, QIcon(pixmap), Qt::DecorationRole);
 953             }
 954         }
 955         ++it;
 956     }
 957 }
 958
 959 KToggleAction* DolphinView::iconsModeAction(KActionCollection* actionCollection)
 960 {
 961     KToggleAction* iconsView = actionCollection->add<KToggleAction>("icons");
 962     iconsView->setText(i18nc("@action:inmenu View Mode", "Icons"));
 963     iconsView->setShortcut(Qt::CTRL | Qt::Key_1);
 964     iconsView->setIcon(KIcon("fileview-icon"));
 965     iconsView->setData(QVariant::fromValue(IconsView));
 966     return iconsView;
 967 }
 968
 969 KToggleAction* DolphinView::detailsModeAction(KActionCollection* actionCollection)
 970 {
 971     KToggleAction* detailsView = actionCollection->add<KToggleAction>("details");
 972     detailsView->setText(i18nc("@action:inmenu View Mode", "Details"));
 973     detailsView->setShortcut(Qt::CTRL | Qt::Key_2);
 974     detailsView->setIcon(KIcon("fileview-detailed"));
 975     detailsView->setData(QVariant::fromValue(DetailsView));
 976     return detailsView;
 977 }
 978
 979 KToggleAction* DolphinView::columnsModeAction(KActionCollection* actionCollection)
 980 {
 981     KToggleAction* columnView = actionCollection->add<KToggleAction>("columns");
 982     columnView->setText(i18nc("@action:inmenu View Mode", "Columns"));
 983     columnView->setShortcut(Qt::CTRL | Qt::Key_3);
 984     columnView->setIcon(KIcon("fileview-column"));
 985     columnView->setData(QVariant::fromValue(ColumnView));
 986     return columnView;
 987 }
 988
 989 QString DolphinView::currentViewModeActionName() const
 990 {
 991     switch (m_mode) {
 992     case DolphinView::IconsView:
 993         return "icons";
 994     case DolphinView::DetailsView:
 995         return "details";
 996     case DolphinView::ColumnView:
 997         return "columns";
 998     }
 999     return QString(); // can't happen
1000 }
1001
1002 #include "dolphinview.moc"