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/previewjob.h>
  40 #include <kmimetyperesolver.h>
  41 #include <konqmimedata.h>
  42 #include <konq_operations.h>
  43 #include <kurl.h>
  44
  45 #include "dolphinmodel.h"
  46 #include "dolphincolumnview.h"
  47 #include "dolphincontroller.h"
  48 #include "dolphinsortfilterproxymodel.h"
  49 #include "dolphindetailsview.h"
  50 #include "dolphiniconsview.h"
  51 #include "renamedialog.h"
  52 #include "viewproperties.h"
  53 #include "dolphinsettings.h"
  54 #include "dolphin_generalsettings.h"
  55
  56 DolphinView::DolphinView(QWidget* parent,
  57                          const KUrl& url,
  58                          KDirLister* dirLister,
  59                          DolphinModel* dolphinModel,
  60                          DolphinSortFilterProxyModel* proxyModel) :
  61     QWidget(parent),
  62     m_active(true),
  63     m_showPreview(false),
  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&)),
 106             this, SLOT(dropUrls(const KUrl::List&, const KUrl&, const KFileItem&)));
 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     deleteView();
 197
 198     // It is important to read the view properties _after_ deleting the view,
 199     // as e. g. the detail view might adjust the additional information properties
 200     // after getting closed:
 201     const KUrl viewPropsUrl = viewPropertiesUrl();
 202     ViewProperties props(viewPropsUrl);
 203     props.setViewMode(m_mode);
 204
 205     createView();
 206
 207     // the file item delegate has been recreated, apply the current
 208     // additional information manually
 209     const KFileItemDelegate::InformationList infoList = props.additionalInfo();
 210     m_fileItemDelegate->setShowInformation(infoList);
 211     emit additionalInfoChanged(infoList);
 212
 213     // Not all view modes support categorized sorting. Adjust the sorting model
 214     // if changing the view mode results in a change of the categorized sorting
 215     // capabilities.
 216     m_storedCategorizedSorting = props.categorizedSorting();
 217     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 218     if (categorized != m_proxyModel->isCategorizedModel()) {
 219         m_proxyModel->setCategorizedModel(categorized);
 220         emit categorizedSortingChanged();
 221     }
 222
 223     loadDirectory(viewPropsUrl);
 224
 225     emit modeChanged();
 226 }
 227
 228 DolphinView::Mode DolphinView::mode() const
 229 {
 230     return m_mode;
 231 }
 232
 233 void DolphinView::setShowPreview(bool show)
 234 {
 235     if (m_showPreview == show) {
 236         return;
 237     }
 238
 239     const KUrl viewPropsUrl = viewPropertiesUrl();
 240     ViewProperties props(viewPropsUrl);
 241     props.setShowPreview(show);
 242
 243     m_showPreview = show;
 244
 245     emit showPreviewChanged();
 246
 247     loadDirectory(viewPropsUrl, true);
 248 }
 249
 250 bool DolphinView::showPreview() const
 251 {
 252     return m_showPreview;
 253 }
 254
 255 void DolphinView::setShowHiddenFiles(bool show)
 256 {
 257     if (m_dirLister->showingDotFiles() == show) {
 258         return;
 259     }
 260
 261     const KUrl viewPropsUrl = viewPropertiesUrl();
 262     ViewProperties props(viewPropsUrl);
 263     props.setShowHiddenFiles(show);
 264
 265     m_dirLister->setShowingDotFiles(show);
 266     emit showHiddenFilesChanged();
 267
 268     loadDirectory(viewPropsUrl, true);
 269 }
 270
 271 bool DolphinView::showHiddenFiles() const
 272 {
 273     return m_dirLister->showingDotFiles();
 274 }
 275
 276 void DolphinView::setCategorizedSorting(bool categorized)
 277 {
 278     if (categorized == categorizedSorting()) {
 279         return;
 280     }
 281
 282     // setCategorizedSorting(true) may only get invoked
 283     // if the view supports categorized sorting
 284     Q_ASSERT(!categorized || supportsCategorizedSorting());
 285
 286     ViewProperties props(viewPropertiesUrl());
 287     props.setCategorizedSorting(categorized);
 288     props.save();
 289
 290     m_storedCategorizedSorting = categorized;
 291     m_proxyModel->setCategorizedModel(categorized);
 292
 293     emit categorizedSortingChanged();
 294 }
 295
 296 bool DolphinView::categorizedSorting() const
 297 {
 298     // If all view modes would support categorized sorting, returning
 299     // m_proxyModel->isCategorizedModel() would be the way to go. As
 300     // currently only the icons view supports caterized sorting, we remember
 301     // the stored view properties state in m_storedCategorizedSorting and
 302     // return this state. The application takes care to disable the corresponding
 303     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 304     // that this setting is not applied to the current view mode.
 305     return m_storedCategorizedSorting;
 306 }
 307
 308 bool DolphinView::supportsCategorizedSorting() const
 309 {
 310     return m_iconsView != 0;
 311 }
 312
 313 void DolphinView::selectAll()
 314 {
 315     itemView()->selectAll();
 316 }
 317
 318 void DolphinView::invertSelection()
 319 {
 320     if (isColumnViewActive()) {
 321         // QAbstractItemView does not offer a virtual method invertSelection()
 322         // as counterpart to QAbstractItemView::selectAll(). This makes it
 323         // necessary to delegate the inverting of the selection to the
 324         // column view, as only the selection of the active column should
 325         // get inverted.
 326         m_columnView->invertSelection();
 327     } else {
 328         QItemSelectionModel* selectionModel = itemView()->selectionModel();
 329         const QAbstractItemModel* itemModel = selectionModel->model();
 330
 331         const QModelIndex topLeft = itemModel->index(0, 0);
 332         const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 333                                                          itemModel->columnCount() - 1);
 334
 335         const QItemSelection selection(topLeft, bottomRight);
 336         selectionModel->select(selection, QItemSelectionModel::Toggle);
 337     }
 338 }
 339
 340 bool DolphinView::hasSelection() const
 341 {
 342     return itemView()->selectionModel()->hasSelection();
 343 }
 344
 345 void DolphinView::clearSelection()
 346 {
 347     itemView()->selectionModel()->clear();
 348 }
 349
 350 KFileItemList DolphinView::selectedItems() const
 351 {
 352     const QAbstractItemView* view = itemView();
 353
 354     // Our view has a selection, we will map them back to the DolphinModel
 355     // and then fill the KFileItemList.
 356     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 357
 358     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 359     KFileItemList itemList;
 360
 361     const QModelIndexList indexList = selection.indexes();
 362     foreach (QModelIndex index, indexList) {
 363         KFileItem item = m_dolphinModel->itemForIndex(index);
 364         if (!item.isNull()) {
 365             itemList.append(item);
 366         }
 367     }
 368
 369     return itemList;
 370 }
 371
 372 KUrl::List DolphinView::selectedUrls() const
 373 {
 374     KUrl::List urls;
 375     const KFileItemList list = selectedItems();
 376     foreach (KFileItem item, list) {
 377         urls.append(item.url());
 378     }
 379     return urls;
 380 }
 381
 382 KFileItem DolphinView::fileItem(const QModelIndex& index) const
 383 {
 384     const QModelIndex dolphinModelIndex = m_proxyModel->mapToSource(index);
 385     return m_dolphinModel->itemForIndex(dolphinModelIndex);
 386 }
 387
 388 void DolphinView::setContentsPosition(int x, int y)
 389 {
 390     QAbstractItemView* view = itemView();
 391
 392     // the ColumnView takes care itself for the horizontal scrolling
 393     if (!isColumnViewActive()) {
 394         view->horizontalScrollBar()->setValue(x);
 395     }
 396     view->verticalScrollBar()->setValue(y);
 397
 398     m_loadingDirectory = false;
 399 }
 400
 401 QPoint DolphinView::contentsPosition() const
 402 {
 403     const int x = itemView()->horizontalScrollBar()->value();
 404     const int y = itemView()->verticalScrollBar()->value();
 405     return QPoint(x, y);
 406 }
 407
 408 void DolphinView::zoomIn()
 409 {
 410     m_controller->triggerZoomIn();
 411 }
 412
 413 void DolphinView::zoomOut()
 414 {
 415     m_controller->triggerZoomOut();
 416 }
 417
 418 bool DolphinView::isZoomInPossible() const
 419 {
 420     return m_controller->isZoomInPossible();
 421 }
 422
 423 bool DolphinView::isZoomOutPossible() const
 424 {
 425     return m_controller->isZoomOutPossible();
 426 }
 427
 428 void DolphinView::setSorting(Sorting sorting)
 429 {
 430     if (sorting != this->sorting()) {
 431         updateSorting(sorting);
 432     }
 433 }
 434
 435 DolphinView::Sorting DolphinView::sorting() const
 436 {
 437     return m_proxyModel->sorting();
 438 }
 439
 440 void DolphinView::setSortOrder(Qt::SortOrder order)
 441 {
 442     if (sortOrder() != order) {
 443         updateSortOrder(order);
 444     }
 445 }
 446
 447 Qt::SortOrder DolphinView::sortOrder() const
 448 {
 449     return m_proxyModel->sortOrder();
 450 }
 451
 452 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 453 {
 454     const KUrl viewPropsUrl = viewPropertiesUrl();
 455     ViewProperties props(viewPropsUrl);
 456     props.setAdditionalInfo(info);
 457     m_fileItemDelegate->setShowInformation(info);
 458
 459     emit additionalInfoChanged(info);
 460
 461     if (itemView() != m_detailsView) {
 462         // the details view requires no reloading of the directory, as it maps
 463         // the file item delegate info to its columns internally
 464         loadDirectory(viewPropsUrl, true);
 465     }
 466 }
 467
 468 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 469 {
 470     return m_fileItemDelegate->showInformation();
 471 }
 472
 473 void DolphinView::reload()
 474 {
 475     setUrl(url());
 476     loadDirectory(url(), true);
 477 }
 478
 479 void DolphinView::refresh()
 480 {
 481     const bool oldActivationState = m_active;
 482     m_active = true;
 483
 484     createView();
 485     applyViewProperties(m_controller->url());
 486     reload();
 487
 488     setActive(oldActivationState);
 489 }
 490
 491 void DolphinView::updateView(const KUrl& url, const KUrl& rootUrl)
 492 {
 493     if (m_controller->url() == url) {
 494         return;
 495     }
 496
 497     m_controller->setUrl(url); // emits urlChanged, which we forward
 498
 499     if (!rootUrl.isEmpty() && rootUrl.isParentOf(url)) {
 500         applyViewProperties(rootUrl);
 501         loadDirectory(rootUrl);
 502         if (itemView() == m_columnView) {
 503             m_columnView->setRootUrl(rootUrl);
 504             m_columnView->showColumn(url);
 505         }
 506     } else {
 507         applyViewProperties(url);
 508         loadDirectory(url);
 509     }
 510
 511     emit startedPathLoading(url);
 512 }
 513
 514 void DolphinView::setNameFilter(const QString& nameFilter)
 515 {
 516     m_proxyModel->setFilterRegExp(nameFilter);
 517
 518     if (isColumnViewActive()) {
 519         // adjusting the directory lister is not enough in the case of the
 520         // column view, as each column has its own directory lister internally...
 521         m_columnView->setNameFilter(nameFilter);
 522     }
 523 }
 524
 525 void DolphinView::calculateItemCount(int& fileCount, int& folderCount)
 526 {
 527     foreach (KFileItem item, m_dirLister->items()) {
 528         if (item.isDir()) {
 529             ++folderCount;
 530         } else {
 531             ++fileCount;
 532         }
 533     }
 534 }
 535
 536 void DolphinView::setUrl(const KUrl& url)
 537 {
 538     updateView(url, KUrl());
 539 }
 540
 541 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 542 {
 543     QWidget::mouseReleaseEvent(event);
 544     setActive(true);
 545 }
 546 void DolphinView::activate()
 547 {
 548     setActive(true);
 549 }
 550
 551 void DolphinView::triggerItem(const KFileItem& item)
 552 {
 553     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 554     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 555         // items are selected by the user, hence don't trigger the
 556         // item specified by 'index'
 557         return;
 558     }
 559
 560     if (item.isNull()) {
 561         return;
 562     }
 563
 564     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 565 }
 566
 567 void DolphinView::generatePreviews(const KFileItemList& items)
 568 {
 569     if (m_controller->dolphinView()->showPreview()) {
 570         KIO::PreviewJob* job = KIO::filePreview(items, 128);
 571         connect(job, SIGNAL(gotPreview(const KFileItem&, const QPixmap&)),
 572                 this, SLOT(showPreview(const KFileItem&, const QPixmap&)));
 573     }
 574 }
 575
 576 void DolphinView::showPreview(const KFileItem& item, const QPixmap& pixmap)
 577 {
 578     Q_ASSERT(!item.isNull());
 579     if (item.url().directory() != m_dirLister->url().path()) {
 580         // the preview job is still working on items of an older URL, hence
 581         // the item is not part of the directory model anymore
 582         return;
 583     }
 584
 585     const QModelIndex idx = m_dolphinModel->indexForItem(item);
 586     if (idx.isValid() && (idx.column() == 0)) {
 587         const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 588         if (KonqMimeData::decodeIsCutSelection(mimeData) && isCutItem(item)) {
 589             KIconEffect iconEffect;
 590             const QPixmap cutPixmap = iconEffect.apply(pixmap, KIconLoader::Desktop, KIconLoader::DisabledState);
 591             m_dolphinModel->setData(idx, QIcon(cutPixmap), Qt::DecorationRole);
 592         } else {
 593             m_dolphinModel->setData(idx, QIcon(pixmap), Qt::DecorationRole);
 594         }
 595     }
 596 }
 597
 598 void DolphinView::emitSelectionChangedSignal()
 599 {
 600     emit selectionChanged(DolphinView::selectedItems());
 601 }
 602
 603 void DolphinView::loadDirectory(const KUrl& url, bool reload)
 604 {
 605     if (!url.isValid()) {
 606         const QString location(url.pathOrUrl());
 607         if (location.isEmpty()) {
 608             emit errorMessage(i18nc("@info:status", "The location is empty."));
 609         } else {
 610             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
 611         }
 612         return;
 613     }
 614
 615     m_cutItemsCache.clear();
 616     m_loadingDirectory = true;
 617
 618     m_dirLister->stop();
 619     m_dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
 620
 621     if (isColumnViewActive()) {
 622         // adjusting the directory lister is not enough in the case of the
 623         // column view, as each column has its own directory lister internally...
 624         if (reload) {
 625             m_columnView->reload();
 626         } else {
 627             m_columnView->showColumn(url);
 628         }
 629     }
 630 }
 631
 632 KUrl DolphinView::viewPropertiesUrl() const
 633 {
 634     if (isColumnViewActive()) {
 635         return m_dirLister->url();
 636     }
 637
 638     return url();
 639 }
 640
 641 void DolphinView::applyViewProperties(const KUrl& url)
 642 {
 643     if (isColumnViewActive() && rootUrl().isParentOf(url)) {
 644         // The column view is active, hence don't apply the view properties
 645         // of sub directories (represented by columns) to the view. The
 646         // view always represents the properties of the first column.
 647         return;
 648     }
 649
 650     const ViewProperties props(url);
 651
 652     const Mode mode = props.viewMode();
 653     if (m_mode != mode) {
 654         m_mode = mode;
 655         createView();
 656         emit modeChanged();
 657     }
 658     if (itemView() == 0) {
 659         createView();
 660     }
 661     Q_ASSERT(itemView() != 0);
 662     Q_ASSERT(m_fileItemDelegate != 0);
 663
 664     const bool showHiddenFiles = props.showHiddenFiles();
 665     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
 666         m_dirLister->setShowingDotFiles(showHiddenFiles);
 667         emit showHiddenFilesChanged();
 668     }
 669
 670     m_storedCategorizedSorting = props.categorizedSorting();
 671     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 672     if (categorized != m_proxyModel->isCategorizedModel()) {
 673         m_proxyModel->setCategorizedModel(categorized);
 674         emit categorizedSortingChanged();
 675     }
 676
 677     const DolphinView::Sorting sorting = props.sorting();
 678     if (sorting != m_proxyModel->sorting()) {
 679         m_proxyModel->setSorting(sorting);
 680         emit sortingChanged(sorting);
 681     }
 682
 683     const Qt::SortOrder sortOrder = props.sortOrder();
 684     if (sortOrder != m_proxyModel->sortOrder()) {
 685         m_proxyModel->setSortOrder(sortOrder);
 686         emit sortOrderChanged(sortOrder);
 687     }
 688
 689     KFileItemDelegate::InformationList info = props.additionalInfo();
 690     if (info != m_fileItemDelegate->showInformation()) {
 691         m_fileItemDelegate->setShowInformation(info);
 692         emit additionalInfoChanged(info);
 693     }
 694
 695     const bool showPreview = props.showPreview();
 696     if (showPreview != m_showPreview) {
 697         m_showPreview = showPreview;
 698         emit showPreviewChanged();
 699     }
 700 }
 701
 702 void DolphinView::changeSelection(const KFileItemList& selection)
 703 {
 704     clearSelection();
 705     if (selection.isEmpty()) {
 706         return;
 707     }
 708     const KUrl& baseUrl = url();
 709     KUrl url;
 710     QItemSelection new_selection;
 711     foreach(const KFileItem& item, selection) {
 712         url = item.url().upUrl();
 713         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 714             QModelIndex index = m_proxyModel->mapFromSource(m_dolphinModel->indexForItem(item));
 715             new_selection.select(index, index);
 716         }
 717     }
 718     itemView()->selectionModel()->select(new_selection,
 719                                          QItemSelectionModel::ClearAndSelect
 720                                          | QItemSelectionModel::Current);
 721 }
 722
 723 void DolphinView::openContextMenu(const QPoint& pos)
 724 {
 725     KFileItem item;
 726
 727     const QModelIndex index = itemView()->indexAt(pos);
 728     if (index.isValid() && (index.column() == DolphinModel::Name)) {
 729         item = fileItem(index);
 730     }
 731
 732     emit requestContextMenu(item, url());
 733 }
 734
 735 void DolphinView::dropUrls(const KUrl::List& urls,
 736                            const KUrl& destPath,
 737                            const KFileItem& destItem)
 738 {
 739     const KUrl& destination = !destItem.isNull() && destItem.isDir() ?
 740                               destItem.url() : destPath;
 741     const KUrl sourceDir = KUrl(urls.first().directory());
 742     if (sourceDir != destination) {
 743         dropUrls(urls, destination);
 744     }
 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     props.save();
 778
 779     m_fileItemDelegate->setShowInformation(info);
 780
 781     emit additionalInfoChanged(info);
 782
 783 }
 784
 785 void DolphinView::emitContentsMoved()
 786 {
 787     // only emit the contents moved signal if:
 788     // - no directory loading is ongoing (this would reset the contents position
 789     //   always to (0, 0))
 790     // - if the Column View is active: the column view does an automatic
 791     //   positioning during the loading operation, which must be remembered
 792     if (!m_loadingDirectory || isColumnViewActive()) {
 793         const QPoint pos(contentsPosition());
 794         emit contentsMoved(pos.x(), pos.y());
 795     }
 796 }
 797
 798 void DolphinView::updateCutItems()
 799 {
 800     // restore the icons of all previously selected items to the
 801     // original state...
 802     QList<CutItem>::const_iterator it = m_cutItemsCache.begin();
 803     QList<CutItem>::const_iterator end = m_cutItemsCache.end();
 804     while (it != end) {
 805         const QModelIndex index = m_dolphinModel->indexForUrl((*it).url);
 806         if (index.isValid()) {
 807             m_dolphinModel->setData(index, QIcon((*it).pixmap), Qt::DecorationRole);
 808         }
 809         ++it;
 810     }
 811     m_cutItemsCache.clear();
 812
 813     // ... and apply an item effect to all currently cut items
 814     applyCutItemEffect();
 815 }
 816
 817 void DolphinView::showHoverInformation(const KFileItem& item)
 818 {
 819     if (hasSelection()) {
 820         return;
 821     }
 822
 823     emit requestItemInfo(item);
 824 }
 825
 826 void DolphinView::clearHoverInformation()
 827 {
 828     emit requestItemInfo(KFileItem());
 829 }
 830
 831
 832 void DolphinView::createView()
 833 {
 834     deleteView();
 835     Q_ASSERT(m_iconsView == 0);
 836     Q_ASSERT(m_detailsView == 0);
 837     Q_ASSERT(m_columnView == 0);
 838
 839     QAbstractItemView* view = 0;
 840     switch (m_mode) {
 841     case IconsView: {
 842         m_iconsView = new DolphinIconsView(this, m_controller);
 843         view = m_iconsView;
 844         break;
 845     }
 846
 847     case DetailsView:
 848         m_detailsView = new DolphinDetailsView(this, m_controller);
 849         view = m_detailsView;
 850         break;
 851
 852     case ColumnView:
 853         m_columnView = new DolphinColumnView(this, m_controller);
 854         view = m_columnView;
 855         break;
 856     }
 857
 858     Q_ASSERT(view != 0);
 859
 860     m_fileItemDelegate = new KFileItemDelegate(view);
 861     view->setItemDelegate(m_fileItemDelegate);
 862
 863     view->setModel(m_proxyModel);
 864     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
 865
 866     new KMimeTypeResolver(view, m_dolphinModel);
 867     m_topLayout->insertWidget(1, view);
 868
 869     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
 870             this, SLOT(emitSelectionChangedSignal()));
 871     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
 872             this, SLOT(emitContentsMoved()));
 873     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
 874             this, SLOT(emitContentsMoved()));
 875 }
 876
 877 void DolphinView::deleteView()
 878 {
 879     QAbstractItemView* view = itemView();
 880     if (view != 0) {
 881         m_topLayout->removeWidget(view);
 882         view->close();
 883         view->deleteLater();
 884         view = 0;
 885         m_iconsView = 0;
 886         m_detailsView = 0;
 887         m_columnView = 0;
 888         m_fileItemDelegate = 0;
 889     }
 890 }
 891
 892 QAbstractItemView* DolphinView::itemView() const
 893 {
 894     if (m_detailsView != 0) {
 895         return m_detailsView;
 896     } else if (m_columnView != 0) {
 897         return m_columnView;
 898     }
 899
 900     return m_iconsView;
 901 }
 902
 903 bool DolphinView::isCutItem(const KFileItem& item) const
 904 {
 905     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 906     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
 907
 908     const KUrl& itemUrl = item.url();
 909     KUrl::List::const_iterator it = cutUrls.begin();
 910     const KUrl::List::const_iterator end = cutUrls.end();
 911     while (it != end) {
 912         if (*it == itemUrl) {
 913             return true;
 914         }
 915         ++it;
 916     }
 917
 918     return false;
 919 }
 920
 921 void DolphinView::applyCutItemEffect()
 922 {
 923     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 924     if (!KonqMimeData::decodeIsCutSelection(mimeData)) {
 925         return;
 926     }
 927
 928     KFileItemList items(m_dirLister->items());
 929     KFileItemList::const_iterator it = items.begin();
 930     const KFileItemList::const_iterator end = items.end();
 931     while (it != end) {
 932         const KFileItem item = *it;
 933         if (isCutItem(item)) {
 934             const QModelIndex index = m_dolphinModel->indexForItem(item);
 935             const QVariant value = m_dolphinModel->data(index, Qt::DecorationRole);
 936             if (value.type() == QVariant::Icon) {
 937                 const QIcon icon(qvariant_cast<QIcon>(value));
 938                 QPixmap pixmap = icon.pixmap(128, 128);
 939
 940                 // remember current pixmap for the item to be able
 941                 // to restore it when other items get cut
 942                 CutItem cutItem;
 943                 cutItem.url = item.url();
 944                 cutItem.pixmap = pixmap;
 945                 m_cutItemsCache.append(cutItem);
 946
 947                 // apply icon effect to the cut item
 948                 KIconEffect iconEffect;
 949                 pixmap = iconEffect.apply(pixmap, KIconLoader::Desktop, KIconLoader::DisabledState);
 950                 m_dolphinModel->setData(index, QIcon(pixmap), Qt::DecorationRole);
 951             }
 952         }
 953         ++it;
 954     }
 955 }
 956
 957 KToggleAction* DolphinView::iconsModeAction(KActionCollection* actionCollection)
 958 {
 959     KToggleAction* iconsView = actionCollection->add<KToggleAction>("icons");
 960     iconsView->setText(i18nc("@action:inmenu View Mode", "Icons"));
 961     iconsView->setShortcut(Qt::CTRL | Qt::Key_1);
 962     iconsView->setIcon(KIcon("fileview-icon"));
 963     iconsView->setData(QVariant::fromValue(IconsView));
 964     return iconsView;
 965 }
 966
 967 KToggleAction* DolphinView::detailsModeAction(KActionCollection* actionCollection)
 968 {
 969     KToggleAction* detailsView = actionCollection->add<KToggleAction>("details");
 970     detailsView->setText(i18nc("@action:inmenu View Mode", "Details"));
 971     detailsView->setShortcut(Qt::CTRL | Qt::Key_2);
 972     detailsView->setIcon(KIcon("fileview-detailed"));
 973     detailsView->setData(QVariant::fromValue(DetailsView));
 974     return detailsView;
 975 }
 976
 977 KToggleAction* DolphinView::columnsModeAction(KActionCollection* actionCollection)
 978 {
 979     KToggleAction* columnView = actionCollection->add<KToggleAction>("columns");
 980     columnView->setText(i18nc("@action:inmenu View Mode", "Columns"));
 981     columnView->setShortcut(Qt::CTRL | Qt::Key_3);
 982     columnView->setIcon(KIcon("fileview-column"));
 983     columnView->setData(QVariant::fromValue(ColumnView));
 984     return columnView;
 985 }
 986
 987 QString DolphinView::currentViewModeActionName() const
 988 {
 989     switch (m_mode) {
 990     case DolphinView::IconsView:
 991         return "icons";
 992     case DolphinView::DetailsView:
 993         return "details";
 994     case DolphinView::ColumnView:
 995         return "columns";
 996     }
 997     return QString(); // can't happen
 998 }
 999
1000 void DolphinView::renameSelectedItems()
1001 {
1002     const KFileItemList items = selectedItems();
1003     if (items.count() > 1) {
1004         // More than one item has been selected for renaming. Open
1005         // a rename dialog and rename all items afterwards.
1006         RenameDialog dialog(this, items);
1007         if (dialog.exec() == QDialog::Rejected) {
1008             return;
1009         }
1010
1011         const QString newName = dialog.newName();
1012         if (newName.isEmpty()) {
1013             emit errorMessage(dialog.errorString());
1014         } else {
1015             // TODO: check how this can be integrated into KonqFileUndoManager/KonqOperations
1016             // as one operation instead of n rename operations like it is done now...
1017             Q_ASSERT(newName.contains('#'));
1018
1019             // iterate through all selected items and rename them...
1020             const int replaceIndex = newName.indexOf('#');
1021             Q_ASSERT(replaceIndex >= 0);
1022             int index = 1;
1023
1024             KFileItemList::const_iterator it = items.begin();
1025             const KFileItemList::const_iterator end = items.end();
1026             while (it != end) {
1027                 const KUrl& oldUrl = (*it).url();
1028                 QString number;
1029                 number.setNum(index++);
1030
1031                 QString name(newName);
1032                 name.replace(replaceIndex, 1, number);
1033
1034                 if (oldUrl.fileName() != name) {
1035                     KUrl newUrl = oldUrl;
1036                     newUrl.setFileName(name);
1037                     KonqOperations::rename(this, oldUrl, newUrl);
1038                     emit renaming();
1039                 }
1040                 ++it;
1041             }
1042         }
1043     } else {
1044         // Only one item has been selected for renaming. Use the custom
1045         // renaming mechanism from the views.
1046         Q_ASSERT(items.count() == 1);
1047
1048         // TODO: Think about using KFileItemDelegate as soon as it supports editing.
1049         // Currently the RenameDialog is used, but I'm not sure whether inline renaming
1050         // is a benefit for the user at all -> let's wait for some input first...
1051         RenameDialog dialog(this, items);
1052         if (dialog.exec() == QDialog::Rejected) {
1053             return;
1054         }
1055
1056         const QString& newName = dialog.newName();
1057         if (newName.isEmpty()) {
1058             emit errorMessage(dialog.errorString());
1059         } else {
1060             const KUrl& oldUrl = items.first().url();
1061             KUrl newUrl = oldUrl;
1062             newUrl.setFileName(newName);
1063             KonqOperations::rename(this, oldUrl, newUrl);
1064             emit renaming();
1065         }
1066     }
1067 }
1068
1069 #include "dolphinview.moc"