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         m_proxyModel->sort(m_proxyModel->sortColumn(), m_proxyModel->sortOrder());
 208         emit categorizedSortingChanged();
 209     }
 210
 211     loadDirectory(viewPropsUrl);
 212
 213     emit modeChanged();
 214 }
 215
 216 DolphinView::Mode DolphinView::mode() const
 217 {
 218     return m_mode;
 219 }
 220
 221 void DolphinView::setShowPreview(bool show)
 222 {
 223     const KUrl viewPropsUrl = viewPropertiesUrl();
 224     ViewProperties props(viewPropsUrl);
 225     props.setShowPreview(show);
 226
 227     m_controller->setShowPreview(show);
 228     emit showPreviewChanged();
 229
 230     loadDirectory(viewPropsUrl, true);
 231 }
 232
 233 bool DolphinView::showPreview() const
 234 {
 235     return m_controller->showPreview();
 236 }
 237
 238 void DolphinView::setShowHiddenFiles(bool show)
 239 {
 240     if (m_dirLister->showingDotFiles() == show) {
 241         return;
 242     }
 243
 244     const KUrl viewPropsUrl = viewPropertiesUrl();
 245     ViewProperties props(viewPropsUrl);
 246     props.setShowHiddenFiles(show);
 247
 248     m_dirLister->setShowingDotFiles(show);
 249     m_controller->setShowHiddenFiles(show);
 250     emit showHiddenFilesChanged();
 251
 252     loadDirectory(viewPropsUrl, true);
 253 }
 254
 255 bool DolphinView::showHiddenFiles() const
 256 {
 257     return m_dirLister->showingDotFiles();
 258 }
 259
 260 void DolphinView::setCategorizedSorting(bool categorized)
 261 {
 262     if (categorized == categorizedSorting()) {
 263         return;
 264     }
 265
 266     // setCategorizedSorting(true) may only get invoked
 267     // if the view supports categorized sorting
 268     Q_ASSERT(!categorized || supportsCategorizedSorting());
 269
 270     ViewProperties props(viewPropertiesUrl());
 271     props.setCategorizedSorting(categorized);
 272     props.save();
 273
 274     m_storedCategorizedSorting = categorized;
 275     m_proxyModel->setCategorizedModel(categorized);
 276     m_proxyModel->sort(m_proxyModel->sortColumn(), m_proxyModel->sortOrder());
 277
 278     emit categorizedSortingChanged();
 279 }
 280
 281 bool DolphinView::categorizedSorting() const
 282 {
 283     // If all view modes would support categorized sorting, returning
 284     // m_proxyModel->isCategorizedModel() would be the way to go. As
 285     // currently only the icons view supports caterized sorting, we remember
 286     // the stored view properties state in m_storedCategorizedSorting and
 287     // return this state. The application takes care to disable the corresponding
 288     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 289     // that this setting is not applied to the current view mode.
 290     return m_storedCategorizedSorting;
 291 }
 292
 293 bool DolphinView::supportsCategorizedSorting() const
 294 {
 295     return m_iconsView != 0;
 296 }
 297
 298 void DolphinView::selectAll()
 299 {
 300     itemView()->selectAll();
 301 }
 302
 303 void DolphinView::invertSelection()
 304 {
 305     if (isColumnViewActive()) {
 306         // QAbstractItemView does not offer a virtual method invertSelection()
 307         // as counterpart to QAbstractItemView::selectAll(). This makes it
 308         // necessary to delegate the inverting of the selection to the
 309         // column view, as only the selection of the active column should
 310         // get inverted.
 311         m_columnView->invertSelection();
 312     } else {
 313         QItemSelectionModel* selectionModel = itemView()->selectionModel();
 314         const QAbstractItemModel* itemModel = selectionModel->model();
 315
 316         const QModelIndex topLeft = itemModel->index(0, 0);
 317         const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 318                                                          itemModel->columnCount() - 1);
 319
 320         const QItemSelection selection(topLeft, bottomRight);
 321         selectionModel->select(selection, QItemSelectionModel::Toggle);
 322     }
 323 }
 324
 325 bool DolphinView::hasSelection() const
 326 {
 327     return itemView()->selectionModel()->hasSelection();
 328 }
 329
 330 void DolphinView::clearSelection()
 331 {
 332     itemView()->selectionModel()->clear();
 333 }
 334
 335 KFileItemList DolphinView::selectedItems() const
 336 {
 337     const QAbstractItemView* view = itemView();
 338
 339     // Our view has a selection, we will map them back to the DolphinModel
 340     // and then fill the KFileItemList.
 341     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 342
 343     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 344     KFileItemList itemList;
 345
 346     const QModelIndexList indexList = selection.indexes();
 347     foreach (QModelIndex index, indexList) {
 348         KFileItem item = m_dolphinModel->itemForIndex(index);
 349         if (!item.isNull()) {
 350             itemList.append(item);
 351         }
 352     }
 353
 354     return itemList;
 355 }
 356
 357 KUrl::List DolphinView::selectedUrls() const
 358 {
 359     KUrl::List urls;
 360     const KFileItemList list = selectedItems();
 361     foreach (KFileItem item, list) {
 362         urls.append(item.url());
 363     }
 364     return urls;
 365 }
 366
 367 KFileItem DolphinView::fileItem(const QModelIndex& index) const
 368 {
 369     const QModelIndex dolphinModelIndex = m_proxyModel->mapToSource(index);
 370     return m_dolphinModel->itemForIndex(dolphinModelIndex);
 371 }
 372
 373 void DolphinView::setContentsPosition(int x, int y)
 374 {
 375     QAbstractItemView* view = itemView();
 376
 377     // the ColumnView takes care itself for the horizontal scrolling
 378     if (!isColumnViewActive()) {
 379         view->horizontalScrollBar()->setValue(x);
 380     }
 381     view->verticalScrollBar()->setValue(y);
 382
 383     m_loadingDirectory = false;
 384 }
 385
 386 QPoint DolphinView::contentsPosition() const
 387 {
 388     const int x = itemView()->horizontalScrollBar()->value();
 389     const int y = itemView()->verticalScrollBar()->value();
 390     return QPoint(x, y);
 391 }
 392
 393 void DolphinView::zoomIn()
 394 {
 395     m_controller->triggerZoomIn();
 396 }
 397
 398 void DolphinView::zoomOut()
 399 {
 400     m_controller->triggerZoomOut();
 401 }
 402
 403 bool DolphinView::isZoomInPossible() const
 404 {
 405     return m_controller->isZoomInPossible();
 406 }
 407
 408 bool DolphinView::isZoomOutPossible() const
 409 {
 410     return m_controller->isZoomOutPossible();
 411 }
 412
 413 void DolphinView::setSorting(Sorting sorting)
 414 {
 415     if (sorting != this->sorting()) {
 416         updateSorting(sorting);
 417     }
 418 }
 419
 420 DolphinView::Sorting DolphinView::sorting() const
 421 {
 422     return m_proxyModel->sorting();
 423 }
 424
 425 void DolphinView::setSortOrder(Qt::SortOrder order)
 426 {
 427     if (sortOrder() != order) {
 428         updateSortOrder(order);
 429     }
 430 }
 431
 432 Qt::SortOrder DolphinView::sortOrder() const
 433 {
 434     return m_proxyModel->sortOrder();
 435 }
 436
 437 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 438 {
 439     const KUrl viewPropsUrl = viewPropertiesUrl();
 440     ViewProperties props(viewPropsUrl);
 441     props.setAdditionalInfo(info);
 442
 443     m_controller->setAdditionalInfoCount(info.count());
 444     m_fileItemDelegate->setShowInformation(info);
 445
 446     emit additionalInfoChanged(info);
 447     loadDirectory(viewPropsUrl, true);
 448 }
 449
 450 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 451 {
 452     return m_fileItemDelegate->showInformation();
 453 }
 454
 455 void DolphinView::reload()
 456 {
 457     setUrl(url());
 458     loadDirectory(url(), true);
 459 }
 460
 461 void DolphinView::refresh()
 462 {
 463     const bool oldActivationState = m_active;
 464     m_active = true;
 465
 466     createView();
 467     applyViewProperties(m_controller->url());
 468     reload();
 469
 470     setActive(oldActivationState);
 471 }
 472
 473 void DolphinView::updateView(const KUrl& url, const KUrl& rootUrl)
 474 {
 475     if (m_controller->url() == url) {
 476         return;
 477     }
 478
 479     m_controller->setUrl(url); // emits urlChanged, which we forward
 480
 481     if (!rootUrl.isEmpty() && rootUrl.isParentOf(url)) {
 482         applyViewProperties(rootUrl);
 483         loadDirectory(rootUrl);
 484         if (itemView() == m_columnView) {
 485             m_columnView->setRootUrl(rootUrl);
 486             m_columnView->showColumn(url);
 487         }
 488     } else {
 489         applyViewProperties(url);
 490         loadDirectory(url);
 491     }
 492
 493     itemView()->setFocus();
 494
 495     emit startedPathLoading(url);
 496 }
 497
 498 void DolphinView::setNameFilter(const QString& nameFilter)
 499 {
 500     // The name filter of KDirLister does a 'hard' filtering, which
 501     // means that only the items are shown where the names match
 502     // exactly the filter. This is non-transparent for the user, which
 503     // just wants to have a 'soft' filtering: does the name contain
 504     // the filter string?
 505     QString adjustedFilter(nameFilter);
 506     adjustedFilter.insert(0, '*');
 507     adjustedFilter.append('*');
 508
 509     m_dirLister->setNameFilter(adjustedFilter);
 510     m_dirLister->emitChanges();
 511
 512     if (isColumnViewActive()) {
 513         // adjusting the directory lister is not enough in the case of the
 514         // column view, as each column has its own directory lister internally...
 515         m_columnView->setNameFilter(nameFilter);
 516     }
 517 }
 518
 519 void DolphinView::calculateItemCount(int& fileCount, int& folderCount)
 520 {
 521     foreach (KFileItem item, m_dirLister->items()) {
 522         if (item.isDir()) {
 523             ++folderCount;
 524         } else {
 525             ++fileCount;
 526         }
 527     }
 528 }
 529
 530 void DolphinView::setUrl(const KUrl& url)
 531 {
 532     updateView(url, KUrl());
 533 }
 534
 535 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 536 {
 537     QWidget::mouseReleaseEvent(event);
 538     setActive(true);
 539 }
 540 void DolphinView::activate()
 541 {
 542     setActive(true);
 543 }
 544
 545 void DolphinView::triggerItem(const KFileItem& item)
 546 {
 547     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 548     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 549         // items are selected by the user, hence don't trigger the
 550         // item specified by 'index'
 551         return;
 552     }
 553
 554     if (item.isNull()) {
 555         return;
 556     }
 557
 558     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 559 }
 560
 561 void DolphinView::generatePreviews(const KFileItemList& items)
 562 {
 563     if (m_controller->showPreview()) {
 564         KIO::PreviewJob* job = KIO::filePreview(items, 128);
 565         connect(job, SIGNAL(gotPreview(const KFileItem&, const QPixmap&)),
 566                 this, SLOT(showPreview(const KFileItem&, const QPixmap&)));
 567     }
 568 }
 569
 570 void DolphinView::showPreview(const KFileItem& item, const QPixmap& pixmap)
 571 {
 572     Q_ASSERT(!item.isNull());
 573     if (item.url().directory() != m_dirLister->url().path()) {
 574         // the preview job is still working on items of an older URL, hence
 575         // the item is not part of the directory model anymore
 576         return;
 577     }
 578
 579     const QModelIndex idx = m_dolphinModel->indexForItem(item);
 580     if (idx.isValid() && (idx.column() == 0)) {
 581         const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 582         if (KonqMimeData::decodeIsCutSelection(mimeData) && isCutItem(item)) {
 583             KIconEffect iconEffect;
 584             const QPixmap cutPixmap = iconEffect.apply(pixmap, KIconLoader::Desktop, KIconLoader::DisabledState);
 585             m_dolphinModel->setData(idx, QIcon(cutPixmap), Qt::DecorationRole);
 586         } else {
 587             m_dolphinModel->setData(idx, QIcon(pixmap), Qt::DecorationRole);
 588         }
 589     }
 590 }
 591
 592 void DolphinView::emitSelectionChangedSignal()
 593 {
 594     emit selectionChanged(DolphinView::selectedItems());
 595 }
 596
 597 void DolphinView::loadDirectory(const KUrl& url, bool reload)
 598 {
 599     if (!url.isValid()) {
 600         const QString location(url.pathOrUrl());
 601         if (location.isEmpty()) {
 602             emit errorMessage(i18nc("@info:status", "The location is empty."));
 603         } else {
 604             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
 605         }
 606         return;
 607     }
 608
 609     m_cutItemsCache.clear();
 610     m_loadingDirectory = true;
 611
 612     m_dirLister->stop();
 613     m_dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
 614
 615     if (isColumnViewActive()) {
 616         // adjusting the directory lister is not enough in the case of the
 617         // column view, as each column has its own directory lister internally...
 618         if (reload) {
 619             m_columnView->reload();
 620         } else {
 621             m_columnView->showColumn(url);
 622         }
 623     }
 624 }
 625
 626 KUrl DolphinView::viewPropertiesUrl() const
 627 {
 628     if (isColumnViewActive()) {
 629         return m_dirLister->url();
 630     }
 631
 632     return url();
 633 }
 634
 635 void DolphinView::applyViewProperties(const KUrl& url)
 636 {
 637     if (isColumnViewActive() && rootUrl().isParentOf(url)) {
 638         // The column view is active, hence don't apply the view properties
 639         // of sub directories (represented by columns) to the view. The
 640         // view always represents the properties of the first column.
 641         return;
 642     }
 643
 644     const ViewProperties props(url);
 645
 646     const Mode mode = props.viewMode();
 647     if (m_mode != mode) {
 648         m_mode = mode;
 649         createView();
 650         emit modeChanged();
 651     }
 652     if (itemView() == 0) {
 653         createView();
 654     }
 655     Q_ASSERT(itemView() != 0);
 656     Q_ASSERT(m_fileItemDelegate != 0);
 657
 658     const bool showHiddenFiles = props.showHiddenFiles();
 659     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
 660         m_dirLister->setShowingDotFiles(showHiddenFiles);
 661         m_controller->setShowHiddenFiles(showHiddenFiles);
 662         emit showHiddenFilesChanged();
 663     }
 664
 665     m_storedCategorizedSorting = props.categorizedSorting();
 666     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 667     if (categorized != m_proxyModel->isCategorizedModel()) {
 668         m_proxyModel->setCategorizedModel(categorized);
 669         m_proxyModel->sort(m_proxyModel->sortColumn(), m_proxyModel->sortOrder());
 670         emit categorizedSortingChanged();
 671     }
 672
 673     const DolphinView::Sorting sorting = props.sorting();
 674     if (sorting != m_proxyModel->sorting()) {
 675         m_proxyModel->setSorting(sorting);
 676         emit sortingChanged(sorting);
 677     }
 678
 679     const Qt::SortOrder sortOrder = props.sortOrder();
 680     if (sortOrder != m_proxyModel->sortOrder()) {
 681         m_proxyModel->setSortOrder(sortOrder);
 682         emit sortOrderChanged(sortOrder);
 683     }
 684
 685     KFileItemDelegate::InformationList info = props.additionalInfo();
 686     if (info != m_fileItemDelegate->showInformation()) {
 687         m_controller->setAdditionalInfoCount(info.count());
 688         m_fileItemDelegate->setShowInformation(info);
 689         emit additionalInfoChanged(info);
 690     }
 691
 692     const bool showPreview = props.showPreview();
 693     if (showPreview != m_controller->showPreview()) {
 694         m_controller->setShowPreview(showPreview);
 695         emit showPreviewChanged();
 696     }
 697 }
 698
 699 void DolphinView::changeSelection(const KFileItemList& selection)
 700 {
 701     clearSelection();
 702     if (selection.isEmpty()) {
 703         return;
 704     }
 705     const KUrl& baseUrl = url();
 706     KUrl url;
 707     QItemSelection new_selection;
 708     foreach(const KFileItem& item, selection) {
 709         url = item.url().upUrl();
 710         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 711             QModelIndex index = m_proxyModel->mapFromSource(m_dolphinModel->indexForItem(item));
 712             new_selection.select(index, index);
 713         }
 714     }
 715     itemView()->selectionModel()->select(new_selection,
 716                                          QItemSelectionModel::ClearAndSelect
 717                                          | QItemSelectionModel::Current);
 718 }
 719
 720 void DolphinView::openContextMenu(const QPoint& pos)
 721 {
 722     KFileItem item;
 723
 724     const QModelIndex index = itemView()->indexAt(pos);
 725     if (isValidNameIndex(index)) {
 726         item = fileItem(index);
 727     }
 728
 729     emit requestContextMenu(item, url());
 730 }
 731
 732 void DolphinView::dropUrls(const KUrl::List& urls,
 733                            const KUrl& destPath,
 734                            const QModelIndex& destIndex,
 735                            QWidget* source)
 736 {
 737     KFileItem directory;
 738     if (isValidNameIndex(destIndex)) {
 739         KFileItem item = fileItem(destIndex);
 740         Q_ASSERT(!item.isNull());
 741         if (item.isDir()) {
 742             // the URLs are dropped above a directory
 743             directory = item;
 744         }
 745     }
 746
 747     if ((directory.isNull()) && (source == itemView())) {
 748         // The dropping is done into the same viewport where
 749         // the dragging has been started. Just ignore this...
 750         return;
 751     }
 752
 753     const KUrl& destination = (directory.isNull()) ?
 754                               destPath : directory.url();
 755     dropUrls(urls, destination);
 756 }
 757
 758 void DolphinView::dropUrls(const KUrl::List& urls,
 759                            const KUrl& destination)
 760 {
 761     emit urlsDropped(urls, destination);
 762 }
 763
 764 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 765 {
 766     ViewProperties props(viewPropertiesUrl());
 767     props.setSorting(sorting);
 768
 769     m_proxyModel->setSorting(sorting);
 770
 771     emit sortingChanged(sorting);
 772 }
 773
 774 void DolphinView::updateSortOrder(Qt::SortOrder order)
 775 {
 776     ViewProperties props(viewPropertiesUrl());
 777     props.setSortOrder(order);
 778
 779     m_proxyModel->setSortOrder(order);
 780
 781     emit sortOrderChanged(order);
 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     KFileItemDelegate::InformationList infoList;
 834     if (m_fileItemDelegate != 0) {
 835         infoList = m_fileItemDelegate->showInformation();
 836     }
 837
 838     // delete current view
 839     QAbstractItemView* view = itemView();
 840     if (view != 0) {
 841         m_topLayout->removeWidget(view);
 842         view->close();
 843         view->deleteLater();
 844         view = 0;
 845         m_iconsView = 0;
 846         m_detailsView = 0;
 847         m_columnView = 0;
 848         m_fileItemDelegate = 0;
 849     }
 850
 851     Q_ASSERT(m_iconsView == 0);
 852     Q_ASSERT(m_detailsView == 0);
 853     Q_ASSERT(m_columnView == 0);
 854
 855     // ... and recreate it representing the current mode
 856     switch (m_mode) {
 857     case IconsView: {
 858         m_iconsView = new DolphinIconsView(this, m_controller);
 859         view = m_iconsView;
 860         break;
 861     }
 862
 863     case DetailsView:
 864         m_detailsView = new DolphinDetailsView(this, m_controller);
 865         view = m_detailsView;
 866         break;
 867
 868     case ColumnView:
 869         m_columnView = new DolphinColumnView(this, m_controller);
 870         view = m_columnView;
 871         break;
 872     }
 873
 874     Q_ASSERT(view != 0);
 875
 876     m_fileItemDelegate = new KFileItemDelegate(view);
 877     m_fileItemDelegate->setShowInformation(infoList);
 878     view->setItemDelegate(m_fileItemDelegate);
 879
 880     view->setModel(m_proxyModel);
 881     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
 882
 883     new KMimeTypeResolver(view, m_dolphinModel);
 884     m_topLayout->insertWidget(1, view);
 885
 886     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
 887             this, SLOT(emitSelectionChangedSignal()));
 888     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
 889             this, SLOT(emitContentsMoved()));
 890     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
 891             this, SLOT(emitContentsMoved()));
 892     view->setFocus();
 893 }
 894
 895 QAbstractItemView* DolphinView::itemView() const
 896 {
 897     if (m_detailsView != 0) {
 898         return m_detailsView;
 899     } else if (m_columnView != 0) {
 900         return m_columnView;
 901     }
 902
 903     return m_iconsView;
 904 }
 905
 906 bool DolphinView::isValidNameIndex(const QModelIndex& index) const
 907 {
 908     return index.isValid() && (index.column() == DolphinModel::Name);
 909 }
 910
 911 bool DolphinView::isCutItem(const KFileItem& item) const
 912 {
 913     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 914     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
 915
 916     const KUrl& itemUrl = item.url();
 917     KUrl::List::const_iterator it = cutUrls.begin();
 918     const KUrl::List::const_iterator end = cutUrls.end();
 919     while (it != end) {
 920         if (*it == itemUrl) {
 921             return true;
 922         }
 923         ++it;
 924     }
 925
 926     return false;
 927 }
 928
 929 void DolphinView::applyCutItemEffect()
 930 {
 931     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 932     if (!KonqMimeData::decodeIsCutSelection(mimeData)) {
 933         return;
 934     }
 935
 936     KFileItemList items(m_dirLister->items());
 937     KFileItemList::const_iterator it = items.begin();
 938     const KFileItemList::const_iterator end = items.end();
 939     while (it != end) {
 940         const KFileItem item = *it;
 941         if (isCutItem(item)) {
 942             const QModelIndex index = m_dolphinModel->indexForItem(item);
 943             const QVariant value = m_dolphinModel->data(index, Qt::DecorationRole);
 944             if (value.type() == QVariant::Icon) {
 945                 const QIcon icon(qvariant_cast<QIcon>(value));
 946                 QPixmap pixmap = icon.pixmap(128, 128);
 947
 948                 // remember current pixmap for the item to be able
 949                 // to restore it when other items get cut
 950                 CutItem cutItem;
 951                 cutItem.url = item.url();
 952                 cutItem.pixmap = pixmap;
 953                 m_cutItemsCache.append(cutItem);
 954
 955                 // apply icon effect to the cut item
 956                 KIconEffect iconEffect;
 957                 pixmap = iconEffect.apply(pixmap, KIconLoader::Desktop, KIconLoader::DisabledState);
 958                 m_dolphinModel->setData(index, QIcon(pixmap), Qt::DecorationRole);
 959             }
 960         }
 961         ++it;
 962     }
 963 }
 964
 965 KToggleAction* DolphinView::iconsModeAction(KActionCollection* actionCollection)
 966 {
 967     KToggleAction* iconsView = actionCollection->add<KToggleAction>("icons");
 968     iconsView->setText(i18nc("@action:inmenu View Mode", "Icons"));
 969     iconsView->setShortcut(Qt::CTRL | Qt::Key_1);
 970     iconsView->setIcon(KIcon("fileview-icon"));
 971     iconsView->setData(QVariant::fromValue(IconsView));
 972     return iconsView;
 973 }
 974
 975 KToggleAction* DolphinView::detailsModeAction(KActionCollection* actionCollection)
 976 {
 977     KToggleAction* detailsView = actionCollection->add<KToggleAction>("details");
 978     detailsView->setText(i18nc("@action:inmenu View Mode", "Details"));
 979     detailsView->setShortcut(Qt::CTRL | Qt::Key_2);
 980     detailsView->setIcon(KIcon("fileview-detailed"));
 981     detailsView->setData(QVariant::fromValue(DetailsView));
 982     return detailsView;
 983 }
 984
 985 KToggleAction* DolphinView::columnsModeAction(KActionCollection* actionCollection)
 986 {
 987     KToggleAction* columnView = actionCollection->add<KToggleAction>("columns");
 988     columnView->setText(i18nc("@action:inmenu View Mode", "Columns"));
 989     columnView->setShortcut(Qt::CTRL | Qt::Key_3);
 990     columnView->setIcon(KIcon("fileview-column"));
 991     columnView->setData(QVariant::fromValue(ColumnView));
 992     return columnView;
 993 }
 994
 995 QString DolphinView::currentViewModeActionName() const
 996 {
 997     switch (m_mode) {
 998     case DolphinView::IconsView:
 999         return "icons";
1000     case DolphinView::DetailsView:
1001         return "details";
1002     case DolphinView::ColumnView:
1003         return "columns";
1004     }
1005     return QString(); // can't happen
1006 }
1007
1008 #include "dolphinview.moc"