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/deletejob.h>
  39 #include <kio/netaccess.h>
  40 #include <kio/previewjob.h>
  41 #include <kjob.h>
  42 #include <kmenu.h>
  43 #include <kmimetyperesolver.h>
  44 #include <konqmimedata.h>
  45 #include <konq_operations.h>
  46 #include <kurl.h>
  47
  48 #include "dolphindropcontroller.h"
  49 #include "dolphinmodel.h"
  50 #include "dolphincolumnview.h"
  51 #include "dolphincontroller.h"
  52 #include "dolphinsortfilterproxymodel.h"
  53 #include "dolphindetailsview.h"
  54 #include "dolphiniconsview.h"
  55 #include "renamedialog.h"
  56 #include "viewproperties.h"
  57 #include "dolphinsettings.h"
  58 #include "dolphin_generalsettings.h"
  59
  60 DolphinView::DolphinView(QWidget* parent,
  61                          const KUrl& url,
  62                          KDirLister* dirLister,
  63                          DolphinModel* dolphinModel,
  64                          DolphinSortFilterProxyModel* proxyModel) :
  65     QWidget(parent),
  66     m_active(true),
  67     m_showPreview(false),
  68     m_loadingDirectory(false),
  69     m_storedCategorizedSorting(false),
  70     m_mode(DolphinView::IconsView),
  71     m_topLayout(0),
  72     m_controller(0),
  73     m_iconsView(0),
  74     m_detailsView(0),
  75     m_columnView(0),
  76     m_fileItemDelegate(0),
  77     m_selectionModel(0),
  78     m_dolphinModel(dolphinModel),
  79     m_dirLister(dirLister),
  80     m_proxyModel(proxyModel),
  81     m_previewJob(0)
  82 {
  83     setFocusPolicy(Qt::StrongFocus);
  84     m_topLayout = new QVBoxLayout(this);
  85     m_topLayout->setSpacing(0);
  86     m_topLayout->setMargin(0);
  87
  88     QClipboard* clipboard = QApplication::clipboard();
  89     connect(clipboard, SIGNAL(dataChanged()),
  90             this, SLOT(updateCutItems()));
  91
  92     connect(m_dirLister, SIGNAL(completed()),
  93             this, SLOT(updateCutItems()));
  94     connect(m_dirLister, SIGNAL(newItems(const KFileItemList&)),
  95             this, SLOT(generatePreviews(const KFileItemList&)));
  96
  97     m_controller = new DolphinController(this);
  98     m_controller->setUrl(url);
  99
 100     // Receiver of the DolphinView signal 'urlChanged()' don't need
 101     // to care whether the internal controller changed the URL already or whether
 102     // the controller just requested an URL change and will be updated later.
 103     // In both cases the URL has been changed:
 104     connect(m_controller, SIGNAL(urlChanged(const KUrl&)),
 105             this, SIGNAL(urlChanged(const KUrl&)));
 106     connect(m_controller, SIGNAL(requestUrlChange(const KUrl&)),
 107             this, SIGNAL(urlChanged(const KUrl&)));
 108
 109     connect(m_controller, SIGNAL(requestContextMenu(const QPoint&)),
 110             this, SLOT(openContextMenu(const QPoint&)));
 111     connect(m_controller, SIGNAL(urlsDropped(const KUrl::List&, const KUrl&, const KFileItem&)),
 112             this, SLOT(dropUrls(const KUrl::List&, const KUrl&, const KFileItem&)));
 113     connect(m_controller, SIGNAL(sortingChanged(DolphinView::Sorting)),
 114             this, SLOT(updateSorting(DolphinView::Sorting)));
 115     connect(m_controller, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 116             this, SLOT(updateSortOrder(Qt::SortOrder)));
 117     connect(m_controller, SIGNAL(additionalInfoChanged(const KFileItemDelegate::InformationList&)),
 118             this, SLOT(updateAdditionalInfo(const KFileItemDelegate::InformationList&)));
 119     connect(m_controller, SIGNAL(itemTriggered(const KFileItem&)),
 120             this, SLOT(triggerItem(const KFileItem&)));
 121     connect(m_controller, SIGNAL(activated()),
 122             this, SLOT(activate()));
 123     connect(m_controller, SIGNAL(itemEntered(const KFileItem&)),
 124             this, SLOT(showHoverInformation(const KFileItem&)));
 125     connect(m_controller, SIGNAL(viewportEntered()),
 126             this, SLOT(clearHoverInformation()));
 127
 128     applyViewProperties(url);
 129     m_topLayout->addWidget(itemView());
 130 }
 131
 132 DolphinView::~DolphinView()
 133 {
 134     if (m_previewJob != 0) {
 135         m_previewJob->kill();
 136         m_previewJob = 0;
 137     }
 138 }
 139
 140 const KUrl& DolphinView::url() const
 141 {
 142     return m_controller->url();
 143 }
 144
 145 KUrl DolphinView::rootUrl() const
 146 {
 147     return isColumnViewActive() ? m_columnView->rootUrl() : url();
 148 }
 149
 150 void DolphinView::setActive(bool active)
 151 {
 152     if (active == m_active) {
 153         return;
 154     }
 155
 156     m_active = active;
 157     m_selectionModel->clearSelection();
 158
 159     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 160     if (active) {
 161         // TODO: emitting urlChanged() is a hack, as the URL hasn't really changed. It
 162         // bypasses the problem when having a split view and changing the active view to
 163         // update the some URL dependent states. A nicer approach should be no big deal...
 164         emit urlChanged(url());
 165         emit selectionChanged(selectedItems());
 166     } else {
 167         color.setAlpha(150);
 168     }
 169
 170     QWidget* viewport = itemView()->viewport();
 171     QPalette palette;
 172     palette.setColor(viewport->backgroundRole(), color);
 173     viewport->setPalette(palette);
 174
 175     update();
 176
 177     if (active) {
 178         emit activated();
 179     }
 180
 181     m_controller->indicateActivationChange(active);
 182 }
 183
 184 bool DolphinView::isActive() const
 185 {
 186     return m_active;
 187 }
 188
 189 void DolphinView::setMode(Mode mode)
 190 {
 191     if (mode == m_mode) {
 192         return; // the wished mode is already set
 193     }
 194
 195     m_mode = mode;
 196
 197     if (isColumnViewActive()) {
 198         // When changing the mode in the column view, it makes sense
 199         // to go back to the root URL of the column view automatically.
 200         // Otherwise there it would not be possible to turn off the column view
 201         // without focusing the first column.
 202         const KUrl root = rootUrl();
 203         setUrl(root);
 204         m_controller->setUrl(root);
 205     }
 206
 207     deleteView();
 208
 209     const KUrl viewPropsUrl = viewPropertiesUrl();
 210     ViewProperties props(viewPropsUrl);
 211     props.setViewMode(m_mode);
 212     createView();
 213
 214     // the file item delegate has been recreated, apply the current
 215     // additional information manually
 216     const KFileItemDelegate::InformationList infoList = props.additionalInfo();
 217     m_fileItemDelegate->setShowInformation(infoList);
 218     emit additionalInfoChanged(infoList);
 219
 220     // Not all view modes support categorized sorting. Adjust the sorting model
 221     // if changing the view mode results in a change of the categorized sorting
 222     // capabilities.
 223     m_storedCategorizedSorting = props.categorizedSorting();
 224     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 225     if (categorized != m_proxyModel->isCategorizedModel()) {
 226         m_proxyModel->setCategorizedModel(categorized);
 227         emit categorizedSortingChanged();
 228     }
 229
 230     emit modeChanged();
 231 }
 232
 233 DolphinView::Mode DolphinView::mode() const
 234 {
 235     return m_mode;
 236 }
 237
 238 void DolphinView::setShowPreview(bool show)
 239 {
 240     if (m_showPreview == show) {
 241         return;
 242     }
 243
 244     const KUrl viewPropsUrl = viewPropertiesUrl();
 245     ViewProperties props(viewPropsUrl);
 246     props.setShowPreview(show);
 247
 248     m_showPreview = show;
 249
 250     emit showPreviewChanged();
 251
 252     loadDirectory(viewPropsUrl, true);
 253 }
 254
 255 bool DolphinView::showPreview() const
 256 {
 257     return m_showPreview;
 258 }
 259
 260 void DolphinView::setShowHiddenFiles(bool show)
 261 {
 262     if (m_dirLister->showingDotFiles() == show) {
 263         return;
 264     }
 265
 266     const KUrl viewPropsUrl = viewPropertiesUrl();
 267     ViewProperties props(viewPropsUrl);
 268     props.setShowHiddenFiles(show);
 269
 270     m_dirLister->setShowingDotFiles(show);
 271     emit showHiddenFilesChanged();
 272
 273     loadDirectory(viewPropsUrl, true);
 274 }
 275
 276 bool DolphinView::showHiddenFiles() const
 277 {
 278     return m_dirLister->showingDotFiles();
 279 }
 280
 281 void DolphinView::setCategorizedSorting(bool categorized)
 282 {
 283     if (categorized == categorizedSorting()) {
 284         return;
 285     }
 286
 287     // setCategorizedSorting(true) may only get invoked
 288     // if the view supports categorized sorting
 289     Q_ASSERT(!categorized || supportsCategorizedSorting());
 290
 291     ViewProperties props(viewPropertiesUrl());
 292     props.setCategorizedSorting(categorized);
 293     props.save();
 294
 295     m_storedCategorizedSorting = categorized;
 296     m_proxyModel->setCategorizedModel(categorized);
 297
 298     emit categorizedSortingChanged();
 299 }
 300
 301 bool DolphinView::categorizedSorting() const
 302 {
 303     // If all view modes would support categorized sorting, returning
 304     // m_proxyModel->isCategorizedModel() would be the way to go. As
 305     // currently only the icons view supports caterized sorting, we remember
 306     // the stored view properties state in m_storedCategorizedSorting and
 307     // return this state. The application takes care to disable the corresponding
 308     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 309     // that this setting is not applied to the current view mode.
 310     return m_storedCategorizedSorting;
 311 }
 312
 313 bool DolphinView::supportsCategorizedSorting() const
 314 {
 315     return m_iconsView != 0;
 316 }
 317
 318 void DolphinView::selectAll()
 319 {
 320     QAbstractItemView* view = itemView();
 321     // TODO: there seems to be a bug in QAbstractItemView::selectAll(); if
 322     // the Ctrl-key is pressed (e. g. for Ctrl+A), selectAll() inverts the
 323     // selection instead of selecting all items. This is bypassed for KDE 4.0
 324     // by invoking clearSelection() first.
 325     view->clearSelection();
 326     view->selectAll();
 327 }
 328
 329 void DolphinView::invertSelection()
 330 {
 331     if (isColumnViewActive()) {
 332         // QAbstractItemView does not offer a virtual method invertSelection()
 333         // as counterpart to QAbstractItemView::selectAll(). This makes it
 334         // necessary to delegate the inverting of the selection to the
 335         // column view, as only the selection of the active column should
 336         // get inverted.
 337         m_columnView->invertSelection();
 338     } else {
 339         QItemSelectionModel* selectionModel = itemView()->selectionModel();
 340         const QAbstractItemModel* itemModel = selectionModel->model();
 341
 342         const QModelIndex topLeft = itemModel->index(0, 0);
 343         const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 344                                                          itemModel->columnCount() - 1);
 345
 346         const QItemSelection selection(topLeft, bottomRight);
 347         selectionModel->select(selection, QItemSelectionModel::Toggle);
 348     }
 349 }
 350
 351 bool DolphinView::hasSelection() const
 352 {
 353     return itemView()->selectionModel()->hasSelection();
 354 }
 355
 356 void DolphinView::clearSelection()
 357 {
 358     itemView()->selectionModel()->clear();
 359 }
 360
 361 KFileItemList DolphinView::selectedItems() const
 362 {
 363     const QAbstractItemView* view = itemView();
 364
 365     // Our view has a selection, we will map them back to the DolphinModel
 366     // and then fill the KFileItemList.
 367     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 368
 369     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 370     KFileItemList itemList;
 371
 372     const QModelIndexList indexList = selection.indexes();
 373     foreach (QModelIndex index, indexList) {
 374         KFileItem item = m_dolphinModel->itemForIndex(index);
 375         if (!item.isNull()) {
 376             itemList.append(item);
 377         }
 378     }
 379
 380     return itemList;
 381 }
 382
 383 KUrl::List DolphinView::selectedUrls() const
 384 {
 385     KUrl::List urls;
 386     const KFileItemList list = selectedItems();
 387     foreach (KFileItem item, list) {
 388         urls.append(item.url());
 389     }
 390     return urls;
 391 }
 392
 393 KFileItem DolphinView::fileItem(const QModelIndex& index) const
 394 {
 395     const QModelIndex dolphinModelIndex = m_proxyModel->mapToSource(index);
 396     return m_dolphinModel->itemForIndex(dolphinModelIndex);
 397 }
 398
 399 void DolphinView::setContentsPosition(int x, int y)
 400 {
 401     QAbstractItemView* view = itemView();
 402
 403     // the ColumnView takes care itself for the horizontal scrolling
 404     if (!isColumnViewActive()) {
 405         view->horizontalScrollBar()->setValue(x);
 406     }
 407     view->verticalScrollBar()->setValue(y);
 408
 409     m_loadingDirectory = false;
 410 }
 411
 412 QPoint DolphinView::contentsPosition() const
 413 {
 414     const int x = itemView()->horizontalScrollBar()->value();
 415     const int y = itemView()->verticalScrollBar()->value();
 416     return QPoint(x, y);
 417 }
 418
 419 void DolphinView::zoomIn()
 420 {
 421     m_controller->triggerZoomIn();
 422 }
 423
 424 void DolphinView::zoomOut()
 425 {
 426     m_controller->triggerZoomOut();
 427 }
 428
 429 bool DolphinView::isZoomInPossible() const
 430 {
 431     return m_controller->isZoomInPossible();
 432 }
 433
 434 bool DolphinView::isZoomOutPossible() const
 435 {
 436     return m_controller->isZoomOutPossible();
 437 }
 438
 439 void DolphinView::setSorting(Sorting sorting)
 440 {
 441     if (sorting != this->sorting()) {
 442         updateSorting(sorting);
 443     }
 444 }
 445
 446 DolphinView::Sorting DolphinView::sorting() const
 447 {
 448     return m_proxyModel->sorting();
 449 }
 450
 451 void DolphinView::setSortOrder(Qt::SortOrder order)
 452 {
 453     if (sortOrder() != order) {
 454         updateSortOrder(order);
 455     }
 456 }
 457
 458 Qt::SortOrder DolphinView::sortOrder() const
 459 {
 460     return m_proxyModel->sortOrder();
 461 }
 462
 463 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 464 {
 465     const KUrl viewPropsUrl = viewPropertiesUrl();
 466     ViewProperties props(viewPropsUrl);
 467     props.setAdditionalInfo(info);
 468     m_fileItemDelegate->setShowInformation(info);
 469
 470     emit additionalInfoChanged(info);
 471
 472     if (itemView() != m_detailsView) {
 473         // the details view requires no reloading of the directory, as it maps
 474         // the file item delegate info to its columns internally
 475         loadDirectory(viewPropsUrl, true);
 476     }
 477 }
 478
 479 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 480 {
 481     return m_fileItemDelegate->showInformation();
 482 }
 483
 484 void DolphinView::reload()
 485 {
 486     setUrl(url());
 487     loadDirectory(url(), true);
 488 }
 489
 490 void DolphinView::refresh()
 491 {
 492     const bool oldActivationState = m_active;
 493     m_active = true;
 494
 495     createView();
 496     applyViewProperties(m_controller->url());
 497     reload();
 498
 499     setActive(oldActivationState);
 500 }
 501
 502 void DolphinView::updateView(const KUrl& url, const KUrl& rootUrl)
 503 {
 504     if (m_controller->url() == url) {
 505         return;
 506     }
 507
 508     m_controller->setUrl(url); // emits urlChanged, which we forward
 509
 510     if (!rootUrl.isEmpty() && rootUrl.isParentOf(url)) {
 511         applyViewProperties(rootUrl);
 512         loadDirectory(rootUrl);
 513         if (itemView() == m_columnView) {
 514             m_columnView->setRootUrl(rootUrl);
 515             m_columnView->showColumn(url);
 516         }
 517     } else {
 518         applyViewProperties(url);
 519         loadDirectory(url);
 520     }
 521
 522     emit startedPathLoading(url);
 523 }
 524
 525 void DolphinView::setNameFilter(const QString& nameFilter)
 526 {
 527     m_proxyModel->setFilterRegExp(nameFilter);
 528
 529     if (isColumnViewActive()) {
 530         // adjusting the directory lister is not enough in the case of the
 531         // column view, as each column has its own directory lister internally...
 532         m_columnView->setNameFilter(nameFilter);
 533     }
 534 }
 535
 536 void DolphinView::calculateItemCount(int& fileCount, int& folderCount)
 537 {
 538     foreach (KFileItem item, m_dirLister->items()) {
 539         if (item.isDir()) {
 540             ++folderCount;
 541         } else {
 542             ++fileCount;
 543         }
 544     }
 545 }
 546
 547 void DolphinView::setUrl(const KUrl& url)
 548 {
 549     updateView(url, KUrl());
 550 }
 551
 552 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 553 {
 554     QWidget::mouseReleaseEvent(event);
 555     setActive(true);
 556 }
 557 void DolphinView::activate()
 558 {
 559     setActive(true);
 560 }
 561
 562 void DolphinView::triggerItem(const KFileItem& item)
 563 {
 564     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 565     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 566         // items are selected by the user, hence don't trigger the
 567         // item specified by 'index'
 568         return;
 569     }
 570
 571     if (item.isNull()) {
 572         return;
 573     }
 574
 575     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 576 }
 577
 578 void DolphinView::generatePreviews(const KFileItemList& items)
 579 {
 580     if (m_controller->dolphinView()->showPreview()) {
 581         if (m_previewJob != 0) {
 582             m_previewJob->kill();
 583             m_previewJob = 0;
 584         }
 585
 586         m_previewJob = KIO::filePreview(items, 128);
 587         connect(m_previewJob, SIGNAL(gotPreview(const KFileItem&, const QPixmap&)),
 588                 this, SLOT(replaceIcon(const KFileItem&, const QPixmap&)));
 589         connect(m_previewJob, SIGNAL(finished(KJob*)),
 590                 this, SLOT(slotPreviewJobFinished(KJob*)));
 591     }
 592 }
 593
 594 void DolphinView::replaceIcon(const KFileItem& item, const QPixmap& pixmap)
 595 {
 596     Q_ASSERT(!item.isNull());
 597     if (!m_showPreview || (item.url().directory() != m_dirLister->url().path())) {
 598         // the preview has been deactivated in the meanwhile or the preview
 599         // job is still working on items of an older URL, hence
 600         // the item is not part of the directory model anymore
 601         return;
 602     }
 603
 604     const QModelIndex idx = m_dolphinModel->indexForItem(item);
 605     if (idx.isValid() && (idx.column() == 0)) {
 606         const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 607         if (KonqMimeData::decodeIsCutSelection(mimeData) && isCutItem(item)) {
 608             KIconEffect iconEffect;
 609             const QPixmap cutPixmap = iconEffect.apply(pixmap, KIconLoader::Desktop, KIconLoader::DisabledState);
 610             m_dolphinModel->setData(idx, QIcon(cutPixmap), Qt::DecorationRole);
 611         } else {
 612             m_dolphinModel->setData(idx, QIcon(pixmap), Qt::DecorationRole);
 613         }
 614     }
 615 }
 616
 617 void DolphinView::emitSelectionChangedSignal()
 618 {
 619     emit selectionChanged(DolphinView::selectedItems());
 620 }
 621
 622 void DolphinView::loadDirectory(const KUrl& url, bool reload)
 623 {
 624     if (!url.isValid()) {
 625         const QString location(url.pathOrUrl());
 626         if (location.isEmpty()) {
 627             emit errorMessage(i18nc("@info:status", "The location is empty."));
 628         } else {
 629             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
 630         }
 631         return;
 632     }
 633
 634     m_cutItemsCache.clear();
 635     m_loadingDirectory = true;
 636
 637     m_dirLister->stop();
 638     m_dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
 639
 640     if (isColumnViewActive()) {
 641         // adjusting the directory lister is not enough in the case of the
 642         // column view, as each column has its own directory lister internally...
 643         if (reload) {
 644             m_columnView->reload();
 645         } else {
 646             m_columnView->showColumn(url);
 647         }
 648     }
 649 }
 650
 651 KUrl DolphinView::viewPropertiesUrl() const
 652 {
 653     if (isColumnViewActive()) {
 654         return m_dirLister->url();
 655     }
 656
 657     return url();
 658 }
 659
 660 void DolphinView::applyViewProperties(const KUrl& url)
 661 {
 662     if (isColumnViewActive() && rootUrl().isParentOf(url)) {
 663         // The column view is active, hence don't apply the view properties
 664         // of sub directories (represented by columns) to the view. The
 665         // view always represents the properties of the first column.
 666         return;
 667     }
 668
 669     const ViewProperties props(url);
 670
 671     const Mode mode = props.viewMode();
 672     if (m_mode != mode) {
 673         m_mode = mode;
 674         createView();
 675         emit modeChanged();
 676     }
 677     if (itemView() == 0) {
 678         createView();
 679     }
 680     Q_ASSERT(itemView() != 0);
 681     Q_ASSERT(m_fileItemDelegate != 0);
 682
 683     const bool showHiddenFiles = props.showHiddenFiles();
 684     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
 685         m_dirLister->setShowingDotFiles(showHiddenFiles);
 686         emit showHiddenFilesChanged();
 687     }
 688
 689     m_storedCategorizedSorting = props.categorizedSorting();
 690     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 691     if (categorized != m_proxyModel->isCategorizedModel()) {
 692         m_proxyModel->setCategorizedModel(categorized);
 693         emit categorizedSortingChanged();
 694     }
 695
 696     const DolphinView::Sorting sorting = props.sorting();
 697     if (sorting != m_proxyModel->sorting()) {
 698         m_proxyModel->setSorting(sorting);
 699         emit sortingChanged(sorting);
 700     }
 701
 702     const Qt::SortOrder sortOrder = props.sortOrder();
 703     if (sortOrder != m_proxyModel->sortOrder()) {
 704         m_proxyModel->setSortOrder(sortOrder);
 705         emit sortOrderChanged(sortOrder);
 706     }
 707
 708     KFileItemDelegate::InformationList info = props.additionalInfo();
 709     if (info != m_fileItemDelegate->showInformation()) {
 710         m_fileItemDelegate->setShowInformation(info);
 711         emit additionalInfoChanged(info);
 712     }
 713
 714     const bool showPreview = props.showPreview();
 715     if (showPreview != m_showPreview) {
 716         m_showPreview = showPreview;
 717         emit showPreviewChanged();
 718     }
 719 }
 720
 721 void DolphinView::changeSelection(const KFileItemList& selection)
 722 {
 723     clearSelection();
 724     if (selection.isEmpty()) {
 725         return;
 726     }
 727     const KUrl& baseUrl = url();
 728     KUrl url;
 729     QItemSelection new_selection;
 730     foreach(const KFileItem& item, selection) {
 731         url = item.url().upUrl();
 732         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 733             QModelIndex index = m_proxyModel->mapFromSource(m_dolphinModel->indexForItem(item));
 734             new_selection.select(index, index);
 735         }
 736     }
 737     itemView()->selectionModel()->select(new_selection,
 738                                          QItemSelectionModel::ClearAndSelect
 739                                          | QItemSelectionModel::Current);
 740 }
 741
 742 void DolphinView::openContextMenu(const QPoint& pos)
 743 {
 744     KFileItem item;
 745
 746     const QModelIndex index = itemView()->indexAt(pos);
 747     if (index.isValid() && (index.column() == DolphinModel::Name)) {
 748         item = fileItem(index);
 749     }
 750
 751     emit requestContextMenu(item, url());
 752 }
 753
 754 void DolphinView::dropUrls(const KUrl::List& urls,
 755                            const KUrl& destPath,
 756                            const KFileItem& destItem)
 757 {
 758     Q_ASSERT(!urls.isEmpty());
 759     const KUrl& destination = !destItem.isNull() && destItem.isDir() ?
 760                               destItem.url() : destPath;
 761     const KUrl sourceDir = KUrl(urls.first().directory());
 762     if (sourceDir != destination) {
 763         dropUrls(urls, destination);
 764     }
 765 }
 766
 767 void DolphinView::dropUrls(const KUrl::List& urls,
 768                            const KUrl& destination)
 769 {
 770     DolphinDropController dropController(this);
 771     // forward doingOperation signal up to the mainwindow
 772     connect(&dropController, SIGNAL(doingOperation(KonqFileUndoManager::CommandType)),
 773             this, SIGNAL(doingOperation(KonqFileUndoManager::CommandType)));
 774     dropController.dropUrls(urls, destination);
 775 }
 776
 777 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 778 {
 779     ViewProperties props(viewPropertiesUrl());
 780     props.setSorting(sorting);
 781
 782     m_proxyModel->setSorting(sorting);
 783
 784     emit sortingChanged(sorting);
 785 }
 786
 787 void DolphinView::updateSortOrder(Qt::SortOrder order)
 788 {
 789     ViewProperties props(viewPropertiesUrl());
 790     props.setSortOrder(order);
 791
 792     m_proxyModel->setSortOrder(order);
 793
 794     emit sortOrderChanged(order);
 795 }
 796
 797 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 798 {
 799     ViewProperties props(viewPropertiesUrl());
 800     props.setAdditionalInfo(info);
 801     props.save();
 802
 803     m_fileItemDelegate->setShowInformation(info);
 804
 805     emit additionalInfoChanged(info);
 806
 807 }
 808
 809 void DolphinView::emitContentsMoved()
 810 {
 811     // only emit the contents moved signal if:
 812     // - no directory loading is ongoing (this would reset the contents position
 813     //   always to (0, 0))
 814     // - if the Column View is active: the column view does an automatic
 815     //   positioning during the loading operation, which must be remembered
 816     if (!m_loadingDirectory || isColumnViewActive()) {
 817         const QPoint pos(contentsPosition());
 818         emit contentsMoved(pos.x(), pos.y());
 819     }
 820 }
 821
 822 void DolphinView::updateCutItems()
 823 {
 824     // restore the icons of all previously selected items to the
 825     // original state...
 826     QList<CutItem>::const_iterator it = m_cutItemsCache.begin();
 827     QList<CutItem>::const_iterator end = m_cutItemsCache.end();
 828     while (it != end) {
 829         const QModelIndex index = m_dolphinModel->indexForUrl((*it).url);
 830         if (index.isValid()) {
 831             m_dolphinModel->setData(index, QIcon((*it).pixmap), Qt::DecorationRole);
 832         }
 833         ++it;
 834     }
 835     m_cutItemsCache.clear();
 836
 837     // ... and apply an item effect to all currently cut items
 838     applyCutItemEffect();
 839 }
 840
 841 void DolphinView::showHoverInformation(const KFileItem& item)
 842 {
 843     if (hasSelection() || !m_active) {
 844         return;
 845     }
 846
 847     emit requestItemInfo(item);
 848 }
 849
 850 void DolphinView::clearHoverInformation()
 851 {
 852     if (m_active) {
 853         emit requestItemInfo(KFileItem());
 854     }
 855 }
 856
 857
 858 void DolphinView::createView()
 859 {
 860     deleteView();
 861     Q_ASSERT(m_iconsView == 0);
 862     Q_ASSERT(m_detailsView == 0);
 863     Q_ASSERT(m_columnView == 0);
 864
 865     QAbstractItemView* view = 0;
 866     switch (m_mode) {
 867     case IconsView: {
 868         m_iconsView = new DolphinIconsView(this, m_controller);
 869         view = m_iconsView;
 870         break;
 871     }
 872
 873     case DetailsView:
 874         m_detailsView = new DolphinDetailsView(this, m_controller);
 875         view = m_detailsView;
 876         break;
 877
 878     case ColumnView:
 879         m_columnView = new DolphinColumnView(this, m_controller);
 880         view = m_columnView;
 881         break;
 882     }
 883
 884     Q_ASSERT(view != 0);
 885
 886     m_fileItemDelegate = new KFileItemDelegate(view);
 887     view->setItemDelegate(m_fileItemDelegate);
 888
 889     view->setModel(m_proxyModel);
 890     if (m_selectionModel != 0) {
 891         view->setSelectionModel(m_selectionModel);
 892     } else {
 893         m_selectionModel = view->selectionModel();
 894     }
 895
 896     // reparent the selection model, as it should not be deleted
 897     // when deleting the model
 898     m_selectionModel->setParent(this);
 899
 900     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
 901
 902     new KMimeTypeResolver(view, m_dolphinModel);
 903     m_topLayout->insertWidget(1, view);
 904
 905     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
 906             this, SLOT(emitSelectionChangedSignal()));
 907     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
 908             this, SLOT(emitContentsMoved()));
 909     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
 910             this, SLOT(emitContentsMoved()));
 911 }
 912
 913 void DolphinView::deleteView()
 914 {
 915     QAbstractItemView* view = itemView();
 916     if (view != 0) {
 917         m_topLayout->removeWidget(view);
 918         view->close();
 919         view->deleteLater();
 920         view = 0;
 921         m_iconsView = 0;
 922         m_detailsView = 0;
 923         m_columnView = 0;
 924         m_fileItemDelegate = 0;
 925     }
 926 }
 927
 928 QAbstractItemView* DolphinView::itemView() const
 929 {
 930     if (m_detailsView != 0) {
 931         return m_detailsView;
 932     } else if (m_columnView != 0) {
 933         return m_columnView;
 934     }
 935
 936     return m_iconsView;
 937 }
 938
 939 bool DolphinView::isCutItem(const KFileItem& item) const
 940 {
 941     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 942     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
 943
 944     const KUrl& itemUrl = item.url();
 945     KUrl::List::const_iterator it = cutUrls.begin();
 946     const KUrl::List::const_iterator end = cutUrls.end();
 947     while (it != end) {
 948         if (*it == itemUrl) {
 949             return true;
 950         }
 951         ++it;
 952     }
 953
 954     return false;
 955 }
 956
 957 void DolphinView::applyCutItemEffect()
 958 {
 959     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 960     if (!KonqMimeData::decodeIsCutSelection(mimeData)) {
 961         return;
 962     }
 963
 964     KFileItemList items(m_dirLister->items());
 965     KFileItemList::const_iterator it = items.begin();
 966     const KFileItemList::const_iterator end = items.end();
 967     while (it != end) {
 968         const KFileItem item = *it;
 969         if (isCutItem(item)) {
 970             const QModelIndex index = m_dolphinModel->indexForItem(item);
 971             const QVariant value = m_dolphinModel->data(index, Qt::DecorationRole);
 972             if (value.type() == QVariant::Icon) {
 973                 const QIcon icon(qvariant_cast<QIcon>(value));
 974                 QPixmap pixmap = icon.pixmap(128, 128);
 975
 976                 // remember current pixmap for the item to be able
 977                 // to restore it when other items get cut
 978                 CutItem cutItem;
 979                 cutItem.url = item.url();
 980                 cutItem.pixmap = pixmap;
 981                 m_cutItemsCache.append(cutItem);
 982
 983                 // apply icon effect to the cut item
 984                 KIconEffect iconEffect;
 985                 pixmap = iconEffect.apply(pixmap, KIconLoader::Desktop, KIconLoader::DisabledState);
 986                 m_dolphinModel->setData(index, QIcon(pixmap), Qt::DecorationRole);
 987             }
 988         }
 989         ++it;
 990     }
 991 }
 992
 993 KToggleAction* DolphinView::iconsModeAction(KActionCollection* actionCollection)
 994 {
 995     KToggleAction* iconsView = actionCollection->add<KToggleAction>("icons");
 996     iconsView->setText(i18nc("@action:inmenu View Mode", "Icons"));
 997     iconsView->setShortcut(Qt::CTRL | Qt::Key_1);
 998     iconsView->setIcon(KIcon("view-list-icons"));
 999     iconsView->setData(QVariant::fromValue(IconsView));
1000     return iconsView;
1001 }
1002
1003 KToggleAction* DolphinView::detailsModeAction(KActionCollection* actionCollection)
1004 {
1005     KToggleAction* detailsView = actionCollection->add<KToggleAction>("details");
1006     detailsView->setText(i18nc("@action:inmenu View Mode", "Details"));
1007     detailsView->setShortcut(Qt::CTRL | Qt::Key_2);
1008     detailsView->setIcon(KIcon("view-list-details"));
1009     detailsView->setData(QVariant::fromValue(DetailsView));
1010     return detailsView;
1011 }
1012
1013 KToggleAction* DolphinView::columnsModeAction(KActionCollection* actionCollection)
1014 {
1015     KToggleAction* columnView = actionCollection->add<KToggleAction>("columns");
1016     columnView->setText(i18nc("@action:inmenu View Mode", "Columns"));
1017     columnView->setShortcut(Qt::CTRL | Qt::Key_3);
1018     columnView->setIcon(KIcon("view-file-columns"));
1019     columnView->setData(QVariant::fromValue(ColumnView));
1020     return columnView;
1021 }
1022
1023 QString DolphinView::currentViewModeActionName() const
1024 {
1025     switch (m_mode) {
1026     case DolphinView::IconsView:
1027         return "icons";
1028     case DolphinView::DetailsView:
1029         return "details";
1030     case DolphinView::ColumnView:
1031         return "columns";
1032     }
1033     return QString(); // can't happen
1034 }
1035
1036 void DolphinView::renameSelectedItems()
1037 {
1038     const KFileItemList items = selectedItems();
1039     if (items.count() > 1) {
1040         // More than one item has been selected for renaming. Open
1041         // a rename dialog and rename all items afterwards.
1042         RenameDialog dialog(this, items);
1043         if (dialog.exec() == QDialog::Rejected) {
1044             return;
1045         }
1046
1047         const QString newName = dialog.newName();
1048         if (newName.isEmpty()) {
1049             emit errorMessage(dialog.errorString());
1050         } else {
1051             // TODO: check how this can be integrated into KonqFileUndoManager/KonqOperations
1052             // as one operation instead of n rename operations like it is done now...
1053             Q_ASSERT(newName.contains('#'));
1054
1055             // iterate through all selected items and rename them...
1056             int index = 1;
1057             foreach (KFileItem item, items) {
1058                 const KUrl& oldUrl = item.url();
1059                 QString number;
1060                 number.setNum(index++);
1061
1062                 QString name = newName;
1063                 name.replace('#', number);
1064
1065                 if (oldUrl.fileName() != name) {
1066                     KUrl newUrl = oldUrl;
1067                     newUrl.setFileName(name);
1068                     KonqOperations::rename(this, oldUrl, newUrl);
1069                     emit doingOperation(KonqFileUndoManager::RENAME);
1070                 }
1071             }
1072         }
1073     } else {
1074         // Only one item has been selected for renaming. Use the custom
1075         // renaming mechanism from the views.
1076         Q_ASSERT(items.count() == 1);
1077
1078         // TODO: Think about using KFileItemDelegate as soon as it supports editing.
1079         // Currently the RenameDialog is used, but I'm not sure whether inline renaming
1080         // is a benefit for the user at all -> let's wait for some input first...
1081         RenameDialog dialog(this, items);
1082         if (dialog.exec() == QDialog::Rejected) {
1083             return;
1084         }
1085
1086         const QString& newName = dialog.newName();
1087         if (newName.isEmpty()) {
1088             emit errorMessage(dialog.errorString());
1089         } else {
1090             const KUrl& oldUrl = items.first().url();
1091             KUrl newUrl = oldUrl;
1092             newUrl.setFileName(newName);
1093             KonqOperations::rename(this, oldUrl, newUrl);
1094             emit doingOperation(KonqFileUndoManager::RENAME);
1095         }
1096     }
1097 }
1098
1099 void DolphinView::trashSelectedItems()
1100 {
1101     emit doingOperation(KonqFileUndoManager::TRASH);
1102     KonqOperations::del(this, KonqOperations::TRASH, selectedUrls());
1103 }
1104
1105 void DolphinView::deleteSelectedItems()
1106 {
1107     const KUrl::List list = selectedUrls();
1108     const bool del = KonqOperations::askDeleteConfirmation(list,
1109                      KonqOperations::DEL,
1110                      KonqOperations::DEFAULT_CONFIRMATION,
1111                      this);
1112
1113     if (del) {
1114         KIO::Job* job = KIO::del(list);
1115         connect(job, SIGNAL(result(KJob*)),
1116                 this, SLOT(slotDeleteFileFinished(KJob*)));
1117     }
1118 }
1119
1120 void DolphinView::slotDeleteFileFinished(KJob* job)
1121 {
1122     if (job->error() == 0) {
1123         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1124     } else {
1125         emit errorMessage(job->errorString());
1126     }
1127 }
1128
1129 void DolphinView::slotPreviewJobFinished(KJob* job)
1130 {
1131     Q_ASSERT(job == m_previewJob);
1132     m_previewJob = 0;
1133 }
1134
1135 void DolphinView::cutSelectedItems()
1136 {
1137     QMimeData* mimeData = new QMimeData();
1138     const KUrl::List kdeUrls = selectedUrls();
1139     const KUrl::List mostLocalUrls;
1140     KonqMimeData::populateMimeData(mimeData, kdeUrls, mostLocalUrls, true);
1141     QApplication::clipboard()->setMimeData(mimeData);
1142 }
1143
1144 void DolphinView::copySelectedItems()
1145 {
1146     QMimeData* mimeData = new QMimeData();
1147     const KUrl::List kdeUrls = selectedUrls();
1148     const KUrl::List mostLocalUrls;
1149     KonqMimeData::populateMimeData(mimeData, kdeUrls, mostLocalUrls, false);
1150     QApplication::clipboard()->setMimeData(mimeData);
1151 }
1152
1153 void DolphinView::paste()
1154 {
1155     QClipboard* clipboard = QApplication::clipboard();
1156     const QMimeData* mimeData = clipboard->mimeData();
1157
1158     const KUrl::List sourceUrls = KUrl::List::fromMimeData(mimeData);
1159
1160     // per default the pasting is done into the current Url of the view
1161     KUrl destUrl(url());
1162
1163     // check whether the pasting should be done into a selected directory
1164     const KUrl::List selectedUrls = this->selectedUrls();
1165     if (selectedUrls.count() == 1) {
1166         const KFileItem fileItem(S_IFDIR,
1167                                  KFileItem::Unknown,
1168                                  selectedUrls.first(),
1169                                  true);
1170         if (fileItem.isDir()) {
1171             // only one item is selected which is a directory, hence paste
1172             // into this directory
1173             destUrl = selectedUrls.first();
1174         }
1175     }
1176
1177     if (KonqMimeData::decodeIsCutSelection(mimeData)) {
1178         KonqOperations::copy(this, KonqOperations::MOVE, sourceUrls, destUrl);
1179         emit doingOperation(KonqFileUndoManager::MOVE);
1180         clipboard->clear();
1181     } else {
1182         KonqOperations::copy(this, KonqOperations::COPY, sourceUrls, destUrl);
1183         emit doingOperation(KonqFileUndoManager::COPY);
1184     }
1185 }
1186
1187 QPair<bool, QString> DolphinView::pasteInfo() const
1188 {
1189     QPair<bool, QString> ret;
1190     QClipboard* clipboard = QApplication::clipboard();
1191     const QMimeData* mimeData = clipboard->mimeData();
1192
1193     KUrl::List urls = KUrl::List::fromMimeData(mimeData);
1194     if (!urls.isEmpty()) {
1195         ret.first = true;
1196         ret.second = i18ncp("@action:inmenu", "Paste One File", "Paste %1 Files", urls.count());
1197     } else {
1198         ret.first = false;
1199         ret.second = i18nc("@action:inmenu", "Paste");
1200     }
1201
1202     if (ret.first) {
1203         const KFileItemList items = selectedItems();
1204         const uint count = items.count();
1205         if (count > 1) {
1206             // pasting should not be allowed when more than one file
1207             // is selected
1208             ret.first = false;
1209         } else if (count == 1) {
1210             // Only one file is selected. Pasting is only allowed if this
1211             // file is a directory.
1212             ret.first = items.first().isDir();
1213         }
1214     }
1215     return ret;
1216 }
1217
1218 KAction* DolphinView::createRenameAction(KActionCollection* collection)
1219 {
1220     KAction* rename = collection->addAction("rename");
1221     rename->setText(i18nc("@action:inmenu File", "Rename..."));
1222     rename->setShortcut(Qt::Key_F2);
1223     return rename;
1224 }
1225
1226 KAction* DolphinView::createMoveToTrashAction(KActionCollection* collection)
1227 {
1228     KAction* moveToTrash = collection->addAction("move_to_trash");
1229     moveToTrash->setText(i18nc("@action:inmenu File", "Move to Trash"));
1230     moveToTrash->setIcon(KIcon("user-trash"));
1231     moveToTrash->setShortcut(QKeySequence::Delete);
1232     return moveToTrash;
1233 }
1234
1235 KAction* DolphinView::createDeleteAction(KActionCollection* collection)
1236 {
1237     KAction* deleteAction = collection->addAction("delete");
1238     deleteAction->setIcon(KIcon("edit-delete"));
1239     deleteAction->setText(i18nc("@action:inmenu File", "Delete"));
1240     deleteAction->setShortcut(Qt::SHIFT | Qt::Key_Delete);
1241     return deleteAction;
1242 }
1243
1244 #include "dolphinview.moc"