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 KFileItem&, QWidget*)),
 106             this, SLOT(dropUrls(const KUrl::List&, const KUrl&, const KFileItem&, 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(additionalInfoChanged(const KFileItemDelegate::InformationList&)),
 112             this, SLOT(updateAdditionalInfo(const KFileItemDelegate::InformationList&)));
 113     connect(m_controller, SIGNAL(itemTriggered(const KFileItem&)),
 114             this, SLOT(triggerItem(const KFileItem&)));
 115     connect(m_controller, SIGNAL(activated()),
 116             this, SLOT(activate()));
 117     connect(m_controller, SIGNAL(itemEntered(const KFileItem&)),
 118             this, SLOT(showHoverInformation(const KFileItem&)));
 119     connect(m_controller, SIGNAL(viewportEntered()),
 120             this, SLOT(clearHoverInformation()));
 121
 122     applyViewProperties(url);
 123     m_topLayout->addWidget(itemView());
 124 }
 125
 126 DolphinView::~DolphinView()
 127 {
 128 }
 129
 130 const KUrl& DolphinView::url() const
 131 {
 132     return m_controller->url();
 133 }
 134
 135 KUrl DolphinView::rootUrl() const
 136 {
 137     return isColumnViewActive() ? m_columnView->rootUrl() : url();
 138 }
 139
 140 void DolphinView::setActive(bool active)
 141 {
 142     if (active == m_active) {
 143         return;
 144     }
 145
 146     m_active = active;
 147
 148     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 149     if (active) {
 150         // TODO: emitting urlChanged() is a hack, as the URL hasn't really changed. It
 151         // bypasses the problem when having a split view and changing the active view to
 152         // update the some URL dependent states. A nicer approach should be no big deal...
 153         emit urlChanged(url());
 154         emit selectionChanged(selectedItems());
 155     } else {
 156         color.setAlpha(150);
 157     }
 158
 159     QWidget* viewport = itemView()->viewport();
 160     QPalette palette;
 161     palette.setColor(viewport->backgroundRole(), color);
 162     viewport->setPalette(palette);
 163
 164     update();
 165
 166     if (active) {
 167         emit activated();
 168     }
 169
 170     m_controller->indicateActivationChange(active);
 171 }
 172
 173 bool DolphinView::isActive() const
 174 {
 175     return m_active;
 176 }
 177
 178 void DolphinView::setMode(Mode mode)
 179 {
 180     if (mode == m_mode) {
 181         return; // the wished mode is already set
 182     }
 183
 184     m_mode = mode;
 185
 186     if (isColumnViewActive()) {
 187         // When changing the mode in the column view, it makes sense
 188         // to go back to the root URL of the column view automatically.
 189         // Otherwise there it would not be possible to turn off the column view
 190         // without focusing the first column.
 191         const KUrl root = rootUrl();
 192         setUrl(root);
 193         m_controller->setUrl(root);
 194     }
 195
 196     const KUrl viewPropsUrl = viewPropertiesUrl();
 197     ViewProperties props(viewPropsUrl);
 198     props.setViewMode(m_mode);
 199
 200     createView();
 201
 202     // the file item delegate has been recreated, apply the current
 203     // additional information manually
 204     const KFileItemDelegate::InformationList infoList = props.additionalInfo();
 205     m_fileItemDelegate->setShowInformation(infoList);
 206     emit additionalInfoChanged(infoList);
 207
 208     // Not all view modes support categorized sorting. Adjust the sorting model
 209     // if changing the view mode results in a change of the categorized sorting
 210     // capabilities.
 211     m_storedCategorizedSorting = props.categorizedSorting();
 212     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 213     if (categorized != m_proxyModel->isCategorizedModel()) {
 214         m_proxyModel->setCategorizedModel(categorized);
 215         emit categorizedSortingChanged();
 216     }
 217
 218     loadDirectory(viewPropsUrl);
 219
 220     emit modeChanged();
 221 }
 222
 223 DolphinView::Mode DolphinView::mode() const
 224 {
 225     return m_mode;
 226 }
 227
 228 void DolphinView::setShowPreview(bool show)
 229 {
 230     const KUrl viewPropsUrl = viewPropertiesUrl();
 231     ViewProperties props(viewPropsUrl);
 232     props.setShowPreview(show);
 233
 234     m_controller->setShowPreview(show);
 235     emit showPreviewChanged();
 236
 237     loadDirectory(viewPropsUrl, true);
 238 }
 239
 240 bool DolphinView::showPreview() const
 241 {
 242     return m_controller->showPreview();
 243 }
 244
 245 void DolphinView::setShowHiddenFiles(bool show)
 246 {
 247     if (m_dirLister->showingDotFiles() == show) {
 248         return;
 249     }
 250
 251     const KUrl viewPropsUrl = viewPropertiesUrl();
 252     ViewProperties props(viewPropsUrl);
 253     props.setShowHiddenFiles(show);
 254
 255     m_dirLister->setShowingDotFiles(show);
 256     emit showHiddenFilesChanged();
 257
 258     loadDirectory(viewPropsUrl, true);
 259 }
 260
 261 bool DolphinView::showHiddenFiles() const
 262 {
 263     return m_dirLister->showingDotFiles();
 264 }
 265
 266 void DolphinView::setCategorizedSorting(bool categorized)
 267 {
 268     if (categorized == categorizedSorting()) {
 269         return;
 270     }
 271
 272     // setCategorizedSorting(true) may only get invoked
 273     // if the view supports categorized sorting
 274     Q_ASSERT(!categorized || supportsCategorizedSorting());
 275
 276     ViewProperties props(viewPropertiesUrl());
 277     props.setCategorizedSorting(categorized);
 278     props.save();
 279
 280     m_storedCategorizedSorting = categorized;
 281     m_proxyModel->setCategorizedModel(categorized);
 282
 283     emit categorizedSortingChanged();
 284 }
 285
 286 bool DolphinView::categorizedSorting() const
 287 {
 288     // If all view modes would support categorized sorting, returning
 289     // m_proxyModel->isCategorizedModel() would be the way to go. As
 290     // currently only the icons view supports caterized sorting, we remember
 291     // the stored view properties state in m_storedCategorizedSorting and
 292     // return this state. The application takes care to disable the corresponding
 293     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 294     // that this setting is not applied to the current view mode.
 295     return m_storedCategorizedSorting;
 296 }
 297
 298 bool DolphinView::supportsCategorizedSorting() const
 299 {
 300     return m_iconsView != 0;
 301 }
 302
 303 void DolphinView::selectAll()
 304 {
 305     itemView()->selectAll();
 306 }
 307
 308 void DolphinView::invertSelection()
 309 {
 310     if (isColumnViewActive()) {
 311         // QAbstractItemView does not offer a virtual method invertSelection()
 312         // as counterpart to QAbstractItemView::selectAll(). This makes it
 313         // necessary to delegate the inverting of the selection to the
 314         // column view, as only the selection of the active column should
 315         // get inverted.
 316         m_columnView->invertSelection();
 317     } else {
 318         QItemSelectionModel* selectionModel = itemView()->selectionModel();
 319         const QAbstractItemModel* itemModel = selectionModel->model();
 320
 321         const QModelIndex topLeft = itemModel->index(0, 0);
 322         const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 323                                                          itemModel->columnCount() - 1);
 324
 325         const QItemSelection selection(topLeft, bottomRight);
 326         selectionModel->select(selection, QItemSelectionModel::Toggle);
 327     }
 328 }
 329
 330 bool DolphinView::hasSelection() const
 331 {
 332     return itemView()->selectionModel()->hasSelection();
 333 }
 334
 335 void DolphinView::clearSelection()
 336 {
 337     itemView()->selectionModel()->clear();
 338 }
 339
 340 KFileItemList DolphinView::selectedItems() const
 341 {
 342     const QAbstractItemView* view = itemView();
 343
 344     // Our view has a selection, we will map them back to the DolphinModel
 345     // and then fill the KFileItemList.
 346     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 347
 348     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 349     KFileItemList itemList;
 350
 351     const QModelIndexList indexList = selection.indexes();
 352     foreach (QModelIndex index, indexList) {
 353         KFileItem item = m_dolphinModel->itemForIndex(index);
 354         if (!item.isNull()) {
 355             itemList.append(item);
 356         }
 357     }
 358
 359     return itemList;
 360 }
 361
 362 KUrl::List DolphinView::selectedUrls() const
 363 {
 364     KUrl::List urls;
 365     const KFileItemList list = selectedItems();
 366     foreach (KFileItem item, list) {
 367         urls.append(item.url());
 368     }
 369     return urls;
 370 }
 371
 372 KFileItem DolphinView::fileItem(const QModelIndex& index) const
 373 {
 374     const QModelIndex dolphinModelIndex = m_proxyModel->mapToSource(index);
 375     return m_dolphinModel->itemForIndex(dolphinModelIndex);
 376 }
 377
 378 void DolphinView::setContentsPosition(int x, int y)
 379 {
 380     QAbstractItemView* view = itemView();
 381
 382     // the ColumnView takes care itself for the horizontal scrolling
 383     if (!isColumnViewActive()) {
 384         view->horizontalScrollBar()->setValue(x);
 385     }
 386     view->verticalScrollBar()->setValue(y);
 387
 388     m_loadingDirectory = false;
 389 }
 390
 391 QPoint DolphinView::contentsPosition() const
 392 {
 393     const int x = itemView()->horizontalScrollBar()->value();
 394     const int y = itemView()->verticalScrollBar()->value();
 395     return QPoint(x, y);
 396 }
 397
 398 void DolphinView::zoomIn()
 399 {
 400     m_controller->triggerZoomIn();
 401 }
 402
 403 void DolphinView::zoomOut()
 404 {
 405     m_controller->triggerZoomOut();
 406 }
 407
 408 bool DolphinView::isZoomInPossible() const
 409 {
 410     return m_controller->isZoomInPossible();
 411 }
 412
 413 bool DolphinView::isZoomOutPossible() const
 414 {
 415     return m_controller->isZoomOutPossible();
 416 }
 417
 418 void DolphinView::setSorting(Sorting sorting)
 419 {
 420     if (sorting != this->sorting()) {
 421         updateSorting(sorting);
 422     }
 423 }
 424
 425 DolphinView::Sorting DolphinView::sorting() const
 426 {
 427     return m_proxyModel->sorting();
 428 }
 429
 430 void DolphinView::setSortOrder(Qt::SortOrder order)
 431 {
 432     if (sortOrder() != order) {
 433         updateSortOrder(order);
 434     }
 435 }
 436
 437 Qt::SortOrder DolphinView::sortOrder() const
 438 {
 439     return m_proxyModel->sortOrder();
 440 }
 441
 442 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 443 {
 444     const KUrl viewPropsUrl = viewPropertiesUrl();
 445     ViewProperties props(viewPropsUrl);
 446     props.setAdditionalInfo(info);
 447     m_fileItemDelegate->setShowInformation(info);
 448
 449     emit additionalInfoChanged(info);
 450
 451     if (itemView() != m_detailsView) {
 452         // the details view requires no reloading of the directory, as it maps
 453         // the file item delegate info to its columns internally
 454         loadDirectory(viewPropsUrl, true);
 455     }
 456 }
 457
 458 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 459 {
 460     return m_fileItemDelegate->showInformation();
 461 }
 462
 463 void DolphinView::reload()
 464 {
 465     setUrl(url());
 466     loadDirectory(url(), true);
 467 }
 468
 469 void DolphinView::refresh()
 470 {
 471     const bool oldActivationState = m_active;
 472     m_active = true;
 473
 474     createView();
 475     applyViewProperties(m_controller->url());
 476     reload();
 477
 478     setActive(oldActivationState);
 479 }
 480
 481 void DolphinView::updateView(const KUrl& url, const KUrl& rootUrl)
 482 {
 483     if (m_controller->url() == url) {
 484         return;
 485     }
 486
 487     m_controller->setUrl(url); // emits urlChanged, which we forward
 488
 489     if (!rootUrl.isEmpty() && rootUrl.isParentOf(url)) {
 490         applyViewProperties(rootUrl);
 491         loadDirectory(rootUrl);
 492         if (itemView() == m_columnView) {
 493             m_columnView->setRootUrl(rootUrl);
 494             m_columnView->showColumn(url);
 495         }
 496     } else {
 497         applyViewProperties(url);
 498         loadDirectory(url);
 499     }
 500
 501     emit startedPathLoading(url);
 502 }
 503
 504 void DolphinView::setNameFilter(const QString& nameFilter)
 505 {
 506     m_proxyModel->setFilterRegExp(nameFilter);
 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         emit showHiddenFilesChanged();
 658     }
 659
 660     m_storedCategorizedSorting = props.categorizedSorting();
 661     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 662     if (categorized != m_proxyModel->isCategorizedModel()) {
 663         m_proxyModel->setCategorizedModel(categorized);
 664         emit categorizedSortingChanged();
 665     }
 666
 667     const DolphinView::Sorting sorting = props.sorting();
 668     if (sorting != m_proxyModel->sorting()) {
 669         m_proxyModel->setSorting(sorting);
 670         emit sortingChanged(sorting);
 671     }
 672
 673     const Qt::SortOrder sortOrder = props.sortOrder();
 674     if (sortOrder != m_proxyModel->sortOrder()) {
 675         m_proxyModel->setSortOrder(sortOrder);
 676         emit sortOrderChanged(sortOrder);
 677     }
 678
 679     KFileItemDelegate::InformationList info = props.additionalInfo();
 680     if (info != m_fileItemDelegate->showInformation()) {
 681         m_fileItemDelegate->setShowInformation(info);
 682         emit additionalInfoChanged(info);
 683     }
 684
 685     const bool showPreview = props.showPreview();
 686     if (showPreview != m_controller->showPreview()) {
 687         m_controller->setShowPreview(showPreview);
 688         emit showPreviewChanged();
 689     }
 690 }
 691
 692 void DolphinView::changeSelection(const KFileItemList& selection)
 693 {
 694     clearSelection();
 695     if (selection.isEmpty()) {
 696         return;
 697     }
 698     const KUrl& baseUrl = url();
 699     KUrl url;
 700     QItemSelection new_selection;
 701     foreach(const KFileItem& item, selection) {
 702         url = item.url().upUrl();
 703         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 704             QModelIndex index = m_proxyModel->mapFromSource(m_dolphinModel->indexForItem(item));
 705             new_selection.select(index, index);
 706         }
 707     }
 708     itemView()->selectionModel()->select(new_selection,
 709                                          QItemSelectionModel::ClearAndSelect
 710                                          | QItemSelectionModel::Current);
 711 }
 712
 713 void DolphinView::openContextMenu(const QPoint& pos)
 714 {
 715     KFileItem item;
 716
 717     const QModelIndex index = itemView()->indexAt(pos);
 718     if (index.isValid() && (index.column() == DolphinModel::Name)) {
 719         item = fileItem(index);
 720     }
 721
 722     emit requestContextMenu(item, url());
 723 }
 724
 725 void DolphinView::dropUrls(const KUrl::List& urls,
 726                            const KUrl& destPath,
 727                            const KFileItem& destItem,
 728                            QWidget* source)
 729 {
 730     bool dropAboveDir = false;
 731     if (!destItem.isNull()) {
 732         dropAboveDir = destItem.isDir();
 733         if (!dropAboveDir) {
 734             // the dropping is done above a file
 735             return;
 736         }
 737     } else if (source == itemView()) {
 738         // the dropping is done into the same viewport where the dragging
 739         // has been started
 740         return;
 741     }
 742
 743     const KUrl& destination = dropAboveDir ? destItem.url() : destPath;
 744     dropUrls(urls, destination);
 745 }
 746
 747 void DolphinView::dropUrls(const KUrl::List& urls,
 748                            const KUrl& destination)
 749 {
 750     emit urlsDropped(urls, destination);
 751 }
 752
 753 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 754 {
 755     ViewProperties props(viewPropertiesUrl());
 756     props.setSorting(sorting);
 757
 758     m_proxyModel->setSorting(sorting);
 759
 760     emit sortingChanged(sorting);
 761 }
 762
 763 void DolphinView::updateSortOrder(Qt::SortOrder order)
 764 {
 765     ViewProperties props(viewPropertiesUrl());
 766     props.setSortOrder(order);
 767
 768     m_proxyModel->setSortOrder(order);
 769
 770     emit sortOrderChanged(order);
 771 }
 772
 773 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 774 {
 775     ViewProperties props(viewPropertiesUrl());
 776     props.setAdditionalInfo(info);
 777
 778     m_fileItemDelegate->setShowInformation(info);
 779
 780     emit additionalInfoChanged(info);
 781
 782 }
 783
 784 void DolphinView::emitContentsMoved()
 785 {
 786     // only emit the contents moved signal if:
 787     // - no directory loading is ongoing (this would reset the contents position
 788     //   always to (0, 0))
 789     // - if the Column View is active: the column view does an automatic
 790     //   positioning during the loading operation, which must be remembered
 791     if (!m_loadingDirectory || isColumnViewActive()) {
 792         const QPoint pos(contentsPosition());
 793         emit contentsMoved(pos.x(), pos.y());
 794     }
 795 }
 796
 797 void DolphinView::updateCutItems()
 798 {
 799     // restore the icons of all previously selected items to the
 800     // original state...
 801     QList<CutItem>::const_iterator it = m_cutItemsCache.begin();
 802     QList<CutItem>::const_iterator end = m_cutItemsCache.end();
 803     while (it != end) {
 804         const QModelIndex index = m_dolphinModel->indexForUrl((*it).url);
 805         if (index.isValid()) {
 806             m_dolphinModel->setData(index, QIcon((*it).pixmap), Qt::DecorationRole);
 807         }
 808         ++it;
 809     }
 810     m_cutItemsCache.clear();
 811
 812     // ... and apply an item effect to all currently cut items
 813     applyCutItemEffect();
 814 }
 815
 816 void DolphinView::showHoverInformation(const KFileItem& item)
 817 {
 818     if (hasSelection()) {
 819         return;
 820     }
 821
 822     emit requestItemInfo(item);
 823 }
 824
 825 void DolphinView::clearHoverInformation()
 826 {
 827     emit requestItemInfo(KFileItem());
 828 }
 829
 830
 831 void DolphinView::createView()
 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     view->setItemDelegate(m_fileItemDelegate);
 873
 874     view->setModel(m_proxyModel);
 875     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
 876
 877     new KMimeTypeResolver(view, m_dolphinModel);
 878     m_topLayout->insertWidget(1, view);
 879
 880     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
 881             this, SLOT(emitSelectionChangedSignal()));
 882     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
 883             this, SLOT(emitContentsMoved()));
 884     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
 885             this, SLOT(emitContentsMoved()));
 886 }
 887
 888 QAbstractItemView* DolphinView::itemView() const
 889 {
 890     if (m_detailsView != 0) {
 891         return m_detailsView;
 892     } else if (m_columnView != 0) {
 893         return m_columnView;
 894     }
 895
 896     return m_iconsView;
 897 }
 898
 899 bool DolphinView::isCutItem(const KFileItem& item) const
 900 {
 901     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 902     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
 903
 904     const KUrl& itemUrl = item.url();
 905     KUrl::List::const_iterator it = cutUrls.begin();
 906     const KUrl::List::const_iterator end = cutUrls.end();
 907     while (it != end) {
 908         if (*it == itemUrl) {
 909             return true;
 910         }
 911         ++it;
 912     }
 913
 914     return false;
 915 }
 916
 917 void DolphinView::applyCutItemEffect()
 918 {
 919     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 920     if (!KonqMimeData::decodeIsCutSelection(mimeData)) {
 921         return;
 922     }
 923
 924     KFileItemList items(m_dirLister->items());
 925     KFileItemList::const_iterator it = items.begin();
 926     const KFileItemList::const_iterator end = items.end();
 927     while (it != end) {
 928         const KFileItem item = *it;
 929         if (isCutItem(item)) {
 930             const QModelIndex index = m_dolphinModel->indexForItem(item);
 931             const QVariant value = m_dolphinModel->data(index, Qt::DecorationRole);
 932             if (value.type() == QVariant::Icon) {
 933                 const QIcon icon(qvariant_cast<QIcon>(value));
 934                 QPixmap pixmap = icon.pixmap(128, 128);
 935
 936                 // remember current pixmap for the item to be able
 937                 // to restore it when other items get cut
 938                 CutItem cutItem;
 939                 cutItem.url = item.url();
 940                 cutItem.pixmap = pixmap;
 941                 m_cutItemsCache.append(cutItem);
 942
 943                 // apply icon effect to the cut item
 944                 KIconEffect iconEffect;
 945                 pixmap = iconEffect.apply(pixmap, KIconLoader::Desktop, KIconLoader::DisabledState);
 946                 m_dolphinModel->setData(index, QIcon(pixmap), Qt::DecorationRole);
 947             }
 948         }
 949         ++it;
 950     }
 951 }
 952
 953 KToggleAction* DolphinView::iconsModeAction(KActionCollection* actionCollection)
 954 {
 955     KToggleAction* iconsView = actionCollection->add<KToggleAction>("icons");
 956     iconsView->setText(i18nc("@action:inmenu View Mode", "Icons"));
 957     iconsView->setShortcut(Qt::CTRL | Qt::Key_1);
 958     iconsView->setIcon(KIcon("fileview-icon"));
 959     iconsView->setData(QVariant::fromValue(IconsView));
 960     return iconsView;
 961 }
 962
 963 KToggleAction* DolphinView::detailsModeAction(KActionCollection* actionCollection)
 964 {
 965     KToggleAction* detailsView = actionCollection->add<KToggleAction>("details");
 966     detailsView->setText(i18nc("@action:inmenu View Mode", "Details"));
 967     detailsView->setShortcut(Qt::CTRL | Qt::Key_2);
 968     detailsView->setIcon(KIcon("fileview-detailed"));
 969     detailsView->setData(QVariant::fromValue(DetailsView));
 970     return detailsView;
 971 }
 972
 973 KToggleAction* DolphinView::columnsModeAction(KActionCollection* actionCollection)
 974 {
 975     KToggleAction* columnView = actionCollection->add<KToggleAction>("columns");
 976     columnView->setText(i18nc("@action:inmenu View Mode", "Columns"));
 977     columnView->setShortcut(Qt::CTRL | Qt::Key_3);
 978     columnView->setIcon(KIcon("fileview-column"));
 979     columnView->setData(QVariant::fromValue(ColumnView));
 980     return columnView;
 981 }
 982
 983 QString DolphinView::currentViewModeActionName() const
 984 {
 985     switch (m_mode) {
 986     case DolphinView::IconsView:
 987         return "icons";
 988     case DolphinView::DetailsView:
 989         return "details";
 990     case DolphinView::ColumnView:
 991         return "columns";
 992     }
 993     return QString(); // can't happen
 994 }
 995
 996 #include "dolphinview.moc"