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_showPreview(false),
  65     m_loadingDirectory(false),
  66     m_storedCategorizedSorting(false),
  67     m_mode(DolphinView::IconsView),
  68     m_topLayout(0),
  69     m_controller(0),
  70     m_iconsView(0),
  71     m_detailsView(0),
  72     m_columnView(0),
  73     m_fileItemDelegate(0),
  74     m_dolphinModel(dolphinModel),
  75     m_dirLister(dirLister),
  76     m_proxyModel(proxyModel)
  77 {
  78     setFocusPolicy(Qt::StrongFocus);
  79     m_topLayout = new QVBoxLayout(this);
  80     m_topLayout->setSpacing(0);
  81     m_topLayout->setMargin(0);
  82
  83     QClipboard* clipboard = QApplication::clipboard();
  84     connect(clipboard, SIGNAL(dataChanged()),
  85             this, SLOT(updateCutItems()));
  86
  87     connect(m_dirLister, SIGNAL(completed()),
  88             this, SLOT(updateCutItems()));
  89     connect(m_dirLister, SIGNAL(newItems(const KFileItemList&)),
  90             this, SLOT(generatePreviews(const KFileItemList&)));
  91
  92     m_controller = new DolphinController(this);
  93     m_controller->setUrl(url);
  94
  95     // Receiver of the DolphinView signal 'urlChanged()' don't need
  96     // to care whether the internal controller changed the URL already or whether
  97     // the controller just requested an URL change and will be updated later.
  98     // In both cases the URL has been changed:
  99     connect(m_controller, SIGNAL(urlChanged(const KUrl&)),
 100             this, SIGNAL(urlChanged(const KUrl&)));
 101     connect(m_controller, SIGNAL(requestUrlChange(const KUrl&)),
 102             this, SIGNAL(urlChanged(const KUrl&)));
 103
 104     connect(m_controller, SIGNAL(requestContextMenu(const QPoint&)),
 105             this, SLOT(openContextMenu(const QPoint&)));
 106     connect(m_controller, SIGNAL(urlsDropped(const KUrl::List&, const KUrl&, const KFileItem&)),
 107             this, SLOT(dropUrls(const KUrl::List&, const KUrl&, const KFileItem&)));
 108     connect(m_controller, SIGNAL(sortingChanged(DolphinView::Sorting)),
 109             this, SLOT(updateSorting(DolphinView::Sorting)));
 110     connect(m_controller, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 111             this, SLOT(updateSortOrder(Qt::SortOrder)));
 112     connect(m_controller, SIGNAL(additionalInfoChanged(const KFileItemDelegate::InformationList&)),
 113             this, SLOT(updateAdditionalInfo(const KFileItemDelegate::InformationList&)));
 114     connect(m_controller, SIGNAL(itemTriggered(const KFileItem&)),
 115             this, SLOT(triggerItem(const KFileItem&)));
 116     connect(m_controller, SIGNAL(activated()),
 117             this, SLOT(activate()));
 118     connect(m_controller, SIGNAL(itemEntered(const KFileItem&)),
 119             this, SLOT(showHoverInformation(const KFileItem&)));
 120     connect(m_controller, SIGNAL(viewportEntered()),
 121             this, SLOT(clearHoverInformation()));
 122
 123     applyViewProperties(url);
 124     m_topLayout->addWidget(itemView());
 125 }
 126
 127 DolphinView::~DolphinView()
 128 {
 129 }
 130
 131 const KUrl& DolphinView::url() const
 132 {
 133     return m_controller->url();
 134 }
 135
 136 KUrl DolphinView::rootUrl() const
 137 {
 138     return isColumnViewActive() ? m_columnView->rootUrl() : url();
 139 }
 140
 141 void DolphinView::setActive(bool active)
 142 {
 143     if (active == m_active) {
 144         return;
 145     }
 146
 147     m_active = active;
 148
 149     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 150     if (active) {
 151         // TODO: emitting urlChanged() is a hack, as the URL hasn't really changed. It
 152         // bypasses the problem when having a split view and changing the active view to
 153         // update the some URL dependent states. A nicer approach should be no big deal...
 154         emit urlChanged(url());
 155         emit selectionChanged(selectedItems());
 156     } else {
 157         color.setAlpha(150);
 158     }
 159
 160     QWidget* viewport = itemView()->viewport();
 161     QPalette palette;
 162     palette.setColor(viewport->backgroundRole(), color);
 163     viewport->setPalette(palette);
 164
 165     update();
 166
 167     if (active) {
 168         emit activated();
 169     }
 170
 171     m_controller->indicateActivationChange(active);
 172 }
 173
 174 bool DolphinView::isActive() const
 175 {
 176     return m_active;
 177 }
 178
 179 void DolphinView::setMode(Mode mode)
 180 {
 181     if (mode == m_mode) {
 182         return; // the wished mode is already set
 183     }
 184
 185     m_mode = mode;
 186
 187     if (isColumnViewActive()) {
 188         // When changing the mode in the column view, it makes sense
 189         // to go back to the root URL of the column view automatically.
 190         // Otherwise there it would not be possible to turn off the column view
 191         // without focusing the first column.
 192         const KUrl root = rootUrl();
 193         setUrl(root);
 194         m_controller->setUrl(root);
 195     }
 196
 197     const KUrl viewPropsUrl = viewPropertiesUrl();
 198     ViewProperties props(viewPropsUrl);
 199     props.setViewMode(m_mode);
 200
 201     createView();
 202
 203     // the file item delegate has been recreated, apply the current
 204     // additional information manually
 205     const KFileItemDelegate::InformationList infoList = props.additionalInfo();
 206     m_fileItemDelegate->setShowInformation(infoList);
 207     emit additionalInfoChanged(infoList);
 208
 209     // Not all view modes support categorized sorting. Adjust the sorting model
 210     // if changing the view mode results in a change of the categorized sorting
 211     // capabilities.
 212     m_storedCategorizedSorting = props.categorizedSorting();
 213     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 214     if (categorized != m_proxyModel->isCategorizedModel()) {
 215         m_proxyModel->setCategorizedModel(categorized);
 216         emit categorizedSortingChanged();
 217     }
 218
 219     loadDirectory(viewPropsUrl);
 220
 221     emit modeChanged();
 222 }
 223
 224 DolphinView::Mode DolphinView::mode() const
 225 {
 226     return m_mode;
 227 }
 228
 229 void DolphinView::setShowPreview(bool show)
 230 {
 231     if (m_showPreview == show) {
 232         return;
 233     }
 234
 235     const KUrl viewPropsUrl = viewPropertiesUrl();
 236     ViewProperties props(viewPropsUrl);
 237     props.setShowPreview(show);
 238
 239     m_showPreview = show;
 240
 241     emit showPreviewChanged();
 242
 243     loadDirectory(viewPropsUrl, true);
 244 }
 245
 246 bool DolphinView::showPreview() const
 247 {
 248     return m_showPreview;
 249 }
 250
 251 void DolphinView::setShowHiddenFiles(bool show)
 252 {
 253     if (m_dirLister->showingDotFiles() == show) {
 254         return;
 255     }
 256
 257     const KUrl viewPropsUrl = viewPropertiesUrl();
 258     ViewProperties props(viewPropsUrl);
 259     props.setShowHiddenFiles(show);
 260
 261     m_dirLister->setShowingDotFiles(show);
 262     emit showHiddenFilesChanged();
 263
 264     loadDirectory(viewPropsUrl, true);
 265 }
 266
 267 bool DolphinView::showHiddenFiles() const
 268 {
 269     return m_dirLister->showingDotFiles();
 270 }
 271
 272 void DolphinView::setCategorizedSorting(bool categorized)
 273 {
 274     if (categorized == categorizedSorting()) {
 275         return;
 276     }
 277
 278     // setCategorizedSorting(true) may only get invoked
 279     // if the view supports categorized sorting
 280     Q_ASSERT(!categorized || supportsCategorizedSorting());
 281
 282     ViewProperties props(viewPropertiesUrl());
 283     props.setCategorizedSorting(categorized);
 284     props.save();
 285
 286     m_storedCategorizedSorting = categorized;
 287     m_proxyModel->setCategorizedModel(categorized);
 288
 289     emit categorizedSortingChanged();
 290 }
 291
 292 bool DolphinView::categorizedSorting() const
 293 {
 294     // If all view modes would support categorized sorting, returning
 295     // m_proxyModel->isCategorizedModel() would be the way to go. As
 296     // currently only the icons view supports caterized sorting, we remember
 297     // the stored view properties state in m_storedCategorizedSorting and
 298     // return this state. The application takes care to disable the corresponding
 299     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 300     // that this setting is not applied to the current view mode.
 301     return m_storedCategorizedSorting;
 302 }
 303
 304 bool DolphinView::supportsCategorizedSorting() const
 305 {
 306     return m_iconsView != 0;
 307 }
 308
 309 void DolphinView::selectAll()
 310 {
 311     itemView()->selectAll();
 312 }
 313
 314 void DolphinView::invertSelection()
 315 {
 316     if (isColumnViewActive()) {
 317         // QAbstractItemView does not offer a virtual method invertSelection()
 318         // as counterpart to QAbstractItemView::selectAll(). This makes it
 319         // necessary to delegate the inverting of the selection to the
 320         // column view, as only the selection of the active column should
 321         // get inverted.
 322         m_columnView->invertSelection();
 323     } else {
 324         QItemSelectionModel* selectionModel = itemView()->selectionModel();
 325         const QAbstractItemModel* itemModel = selectionModel->model();
 326
 327         const QModelIndex topLeft = itemModel->index(0, 0);
 328         const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 329                                                          itemModel->columnCount() - 1);
 330
 331         const QItemSelection selection(topLeft, bottomRight);
 332         selectionModel->select(selection, QItemSelectionModel::Toggle);
 333     }
 334 }
 335
 336 bool DolphinView::hasSelection() const
 337 {
 338     return itemView()->selectionModel()->hasSelection();
 339 }
 340
 341 void DolphinView::clearSelection()
 342 {
 343     itemView()->selectionModel()->clear();
 344 }
 345
 346 KFileItemList DolphinView::selectedItems() const
 347 {
 348     const QAbstractItemView* view = itemView();
 349
 350     // Our view has a selection, we will map them back to the DolphinModel
 351     // and then fill the KFileItemList.
 352     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 353
 354     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 355     KFileItemList itemList;
 356
 357     const QModelIndexList indexList = selection.indexes();
 358     foreach (QModelIndex index, indexList) {
 359         KFileItem item = m_dolphinModel->itemForIndex(index);
 360         if (!item.isNull()) {
 361             itemList.append(item);
 362         }
 363     }
 364
 365     return itemList;
 366 }
 367
 368 KUrl::List DolphinView::selectedUrls() const
 369 {
 370     KUrl::List urls;
 371     const KFileItemList list = selectedItems();
 372     foreach (KFileItem item, list) {
 373         urls.append(item.url());
 374     }
 375     return urls;
 376 }
 377
 378 KFileItem DolphinView::fileItem(const QModelIndex& index) const
 379 {
 380     const QModelIndex dolphinModelIndex = m_proxyModel->mapToSource(index);
 381     return m_dolphinModel->itemForIndex(dolphinModelIndex);
 382 }
 383
 384 void DolphinView::setContentsPosition(int x, int y)
 385 {
 386     QAbstractItemView* view = itemView();
 387
 388     // the ColumnView takes care itself for the horizontal scrolling
 389     if (!isColumnViewActive()) {
 390         view->horizontalScrollBar()->setValue(x);
 391     }
 392     view->verticalScrollBar()->setValue(y);
 393
 394     m_loadingDirectory = false;
 395 }
 396
 397 QPoint DolphinView::contentsPosition() const
 398 {
 399     const int x = itemView()->horizontalScrollBar()->value();
 400     const int y = itemView()->verticalScrollBar()->value();
 401     return QPoint(x, y);
 402 }
 403
 404 void DolphinView::zoomIn()
 405 {
 406     m_controller->triggerZoomIn();
 407 }
 408
 409 void DolphinView::zoomOut()
 410 {
 411     m_controller->triggerZoomOut();
 412 }
 413
 414 bool DolphinView::isZoomInPossible() const
 415 {
 416     return m_controller->isZoomInPossible();
 417 }
 418
 419 bool DolphinView::isZoomOutPossible() const
 420 {
 421     return m_controller->isZoomOutPossible();
 422 }
 423
 424 void DolphinView::setSorting(Sorting sorting)
 425 {
 426     if (sorting != this->sorting()) {
 427         updateSorting(sorting);
 428     }
 429 }
 430
 431 DolphinView::Sorting DolphinView::sorting() const
 432 {
 433     return m_proxyModel->sorting();
 434 }
 435
 436 void DolphinView::setSortOrder(Qt::SortOrder order)
 437 {
 438     if (sortOrder() != order) {
 439         updateSortOrder(order);
 440     }
 441 }
 442
 443 Qt::SortOrder DolphinView::sortOrder() const
 444 {
 445     return m_proxyModel->sortOrder();
 446 }
 447
 448 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 449 {
 450     const KUrl viewPropsUrl = viewPropertiesUrl();
 451     ViewProperties props(viewPropsUrl);
 452     props.setAdditionalInfo(info);
 453     m_fileItemDelegate->setShowInformation(info);
 454
 455     emit additionalInfoChanged(info);
 456
 457     if (itemView() != m_detailsView) {
 458         // the details view requires no reloading of the directory, as it maps
 459         // the file item delegate info to its columns internally
 460         loadDirectory(viewPropsUrl, true);
 461     }
 462 }
 463
 464 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 465 {
 466     return m_fileItemDelegate->showInformation();
 467 }
 468
 469 void DolphinView::reload()
 470 {
 471     setUrl(url());
 472     loadDirectory(url(), true);
 473 }
 474
 475 void DolphinView::refresh()
 476 {
 477     const bool oldActivationState = m_active;
 478     m_active = true;
 479
 480     createView();
 481     applyViewProperties(m_controller->url());
 482     reload();
 483
 484     setActive(oldActivationState);
 485 }
 486
 487 void DolphinView::updateView(const KUrl& url, const KUrl& rootUrl)
 488 {
 489     if (m_controller->url() == url) {
 490         return;
 491     }
 492
 493     m_controller->setUrl(url); // emits urlChanged, which we forward
 494
 495     if (!rootUrl.isEmpty() && rootUrl.isParentOf(url)) {
 496         applyViewProperties(rootUrl);
 497         loadDirectory(rootUrl);
 498         if (itemView() == m_columnView) {
 499             m_columnView->setRootUrl(rootUrl);
 500             m_columnView->showColumn(url);
 501         }
 502     } else {
 503         applyViewProperties(url);
 504         loadDirectory(url);
 505     }
 506
 507     emit startedPathLoading(url);
 508 }
 509
 510 void DolphinView::setNameFilter(const QString& nameFilter)
 511 {
 512     m_proxyModel->setFilterRegExp(nameFilter);
 513
 514     if (isColumnViewActive()) {
 515         // adjusting the directory lister is not enough in the case of the
 516         // column view, as each column has its own directory lister internally...
 517         m_columnView->setNameFilter(nameFilter);
 518     }
 519 }
 520
 521 void DolphinView::calculateItemCount(int& fileCount, int& folderCount)
 522 {
 523     foreach (KFileItem item, m_dirLister->items()) {
 524         if (item.isDir()) {
 525             ++folderCount;
 526         } else {
 527             ++fileCount;
 528         }
 529     }
 530 }
 531
 532 void DolphinView::setUrl(const KUrl& url)
 533 {
 534     updateView(url, KUrl());
 535 }
 536
 537 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 538 {
 539     QWidget::mouseReleaseEvent(event);
 540     setActive(true);
 541 }
 542 void DolphinView::activate()
 543 {
 544     setActive(true);
 545 }
 546
 547 void DolphinView::triggerItem(const KFileItem& item)
 548 {
 549     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 550     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 551         // items are selected by the user, hence don't trigger the
 552         // item specified by 'index'
 553         return;
 554     }
 555
 556     if (item.isNull()) {
 557         return;
 558     }
 559
 560     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 561 }
 562
 563 void DolphinView::generatePreviews(const KFileItemList& items)
 564 {
 565     if (m_controller->dolphinView()->showPreview()) {
 566         KIO::PreviewJob* job = KIO::filePreview(items, 128);
 567         connect(job, SIGNAL(gotPreview(const KFileItem&, const QPixmap&)),
 568                 this, SLOT(showPreview(const KFileItem&, const QPixmap&)));
 569     }
 570 }
 571
 572 void DolphinView::showPreview(const KFileItem& item, const QPixmap& pixmap)
 573 {
 574     Q_ASSERT(!item.isNull());
 575     if (item.url().directory() != m_dirLister->url().path()) {
 576         // the preview job is still working on items of an older URL, hence
 577         // the item is not part of the directory model anymore
 578         return;
 579     }
 580
 581     const QModelIndex idx = m_dolphinModel->indexForItem(item);
 582     if (idx.isValid() && (idx.column() == 0)) {
 583         const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 584         if (KonqMimeData::decodeIsCutSelection(mimeData) && isCutItem(item)) {
 585             KIconEffect iconEffect;
 586             const QPixmap cutPixmap = iconEffect.apply(pixmap, KIconLoader::Desktop, KIconLoader::DisabledState);
 587             m_dolphinModel->setData(idx, QIcon(cutPixmap), Qt::DecorationRole);
 588         } else {
 589             m_dolphinModel->setData(idx, QIcon(pixmap), Qt::DecorationRole);
 590         }
 591     }
 592 }
 593
 594 void DolphinView::emitSelectionChangedSignal()
 595 {
 596     emit selectionChanged(DolphinView::selectedItems());
 597 }
 598
 599 void DolphinView::loadDirectory(const KUrl& url, bool reload)
 600 {
 601     if (!url.isValid()) {
 602         const QString location(url.pathOrUrl());
 603         if (location.isEmpty()) {
 604             emit errorMessage(i18nc("@info:status", "The location is empty."));
 605         } else {
 606             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
 607         }
 608         return;
 609     }
 610
 611     m_cutItemsCache.clear();
 612     m_loadingDirectory = true;
 613
 614     m_dirLister->stop();
 615     m_dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
 616
 617     if (isColumnViewActive()) {
 618         // adjusting the directory lister is not enough in the case of the
 619         // column view, as each column has its own directory lister internally...
 620         if (reload) {
 621             m_columnView->reload();
 622         } else {
 623             m_columnView->showColumn(url);
 624         }
 625     }
 626 }
 627
 628 KUrl DolphinView::viewPropertiesUrl() const
 629 {
 630     if (isColumnViewActive()) {
 631         return m_dirLister->url();
 632     }
 633
 634     return url();
 635 }
 636
 637 void DolphinView::applyViewProperties(const KUrl& url)
 638 {
 639     if (isColumnViewActive() && rootUrl().isParentOf(url)) {
 640         // The column view is active, hence don't apply the view properties
 641         // of sub directories (represented by columns) to the view. The
 642         // view always represents the properties of the first column.
 643         return;
 644     }
 645
 646     const ViewProperties props(url);
 647
 648     const Mode mode = props.viewMode();
 649     if (m_mode != mode) {
 650         m_mode = mode;
 651         createView();
 652         emit modeChanged();
 653     }
 654     if (itemView() == 0) {
 655         createView();
 656     }
 657     Q_ASSERT(itemView() != 0);
 658     Q_ASSERT(m_fileItemDelegate != 0);
 659
 660     const bool showHiddenFiles = props.showHiddenFiles();
 661     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
 662         m_dirLister->setShowingDotFiles(showHiddenFiles);
 663         emit showHiddenFilesChanged();
 664     }
 665
 666     m_storedCategorizedSorting = props.categorizedSorting();
 667     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 668     if (categorized != m_proxyModel->isCategorizedModel()) {
 669         m_proxyModel->setCategorizedModel(categorized);
 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_fileItemDelegate->setShowInformation(info);
 688         emit additionalInfoChanged(info);
 689     }
 690
 691     const bool showPreview = props.showPreview();
 692     if (showPreview != m_showPreview) {
 693         m_showPreview = showPreview;
 694         emit showPreviewChanged();
 695     }
 696 }
 697
 698 void DolphinView::changeSelection(const KFileItemList& selection)
 699 {
 700     clearSelection();
 701     if (selection.isEmpty()) {
 702         return;
 703     }
 704     const KUrl& baseUrl = url();
 705     KUrl url;
 706     QItemSelection new_selection;
 707     foreach(const KFileItem& item, selection) {
 708         url = item.url().upUrl();
 709         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 710             QModelIndex index = m_proxyModel->mapFromSource(m_dolphinModel->indexForItem(item));
 711             new_selection.select(index, index);
 712         }
 713     }
 714     itemView()->selectionModel()->select(new_selection,
 715                                          QItemSelectionModel::ClearAndSelect
 716                                          | QItemSelectionModel::Current);
 717 }
 718
 719 void DolphinView::openContextMenu(const QPoint& pos)
 720 {
 721     KFileItem item;
 722
 723     const QModelIndex index = itemView()->indexAt(pos);
 724     if (index.isValid() && (index.column() == DolphinModel::Name)) {
 725         item = fileItem(index);
 726     }
 727
 728     emit requestContextMenu(item, url());
 729 }
 730
 731 void DolphinView::dropUrls(const KUrl::List& urls,
 732                            const KUrl& destPath,
 733                            const KFileItem& destItem)
 734 {
 735     const KUrl& destination = !destItem.isNull() && destItem.isDir() ?
 736                               destItem.url() : destPath;
 737     const KUrl sourceDir = KUrl(urls.first().directory());
 738     if (sourceDir != destination) {
 739         dropUrls(urls, destination);
 740     }
 741 }
 742
 743 void DolphinView::dropUrls(const KUrl::List& urls,
 744                            const KUrl& destination)
 745 {
 746     emit urlsDropped(urls, destination);
 747 }
 748
 749 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 750 {
 751     ViewProperties props(viewPropertiesUrl());
 752     props.setSorting(sorting);
 753
 754     m_proxyModel->setSorting(sorting);
 755
 756     emit sortingChanged(sorting);
 757 }
 758
 759 void DolphinView::updateSortOrder(Qt::SortOrder order)
 760 {
 761     ViewProperties props(viewPropertiesUrl());
 762     props.setSortOrder(order);
 763
 764     m_proxyModel->setSortOrder(order);
 765
 766     emit sortOrderChanged(order);
 767 }
 768
 769 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 770 {
 771     ViewProperties props(viewPropertiesUrl());
 772     props.setAdditionalInfo(info);
 773
 774     m_fileItemDelegate->setShowInformation(info);
 775
 776     emit additionalInfoChanged(info);
 777
 778 }
 779
 780 void DolphinView::emitContentsMoved()
 781 {
 782     // only emit the contents moved signal if:
 783     // - no directory loading is ongoing (this would reset the contents position
 784     //   always to (0, 0))
 785     // - if the Column View is active: the column view does an automatic
 786     //   positioning during the loading operation, which must be remembered
 787     if (!m_loadingDirectory || isColumnViewActive()) {
 788         const QPoint pos(contentsPosition());
 789         emit contentsMoved(pos.x(), pos.y());
 790     }
 791 }
 792
 793 void DolphinView::updateCutItems()
 794 {
 795     // restore the icons of all previously selected items to the
 796     // original state...
 797     QList<CutItem>::const_iterator it = m_cutItemsCache.begin();
 798     QList<CutItem>::const_iterator end = m_cutItemsCache.end();
 799     while (it != end) {
 800         const QModelIndex index = m_dolphinModel->indexForUrl((*it).url);
 801         if (index.isValid()) {
 802             m_dolphinModel->setData(index, QIcon((*it).pixmap), Qt::DecorationRole);
 803         }
 804         ++it;
 805     }
 806     m_cutItemsCache.clear();
 807
 808     // ... and apply an item effect to all currently cut items
 809     applyCutItemEffect();
 810 }
 811
 812 void DolphinView::showHoverInformation(const KFileItem& item)
 813 {
 814     if (hasSelection()) {
 815         return;
 816     }
 817
 818     emit requestItemInfo(item);
 819 }
 820
 821 void DolphinView::clearHoverInformation()
 822 {
 823     emit requestItemInfo(KFileItem());
 824 }
 825
 826
 827 void DolphinView::createView()
 828 {
 829     // delete current view
 830     QAbstractItemView* view = itemView();
 831     if (view != 0) {
 832         m_topLayout->removeWidget(view);
 833         view->close();
 834         view->deleteLater();
 835         view = 0;
 836         m_iconsView = 0;
 837         m_detailsView = 0;
 838         m_columnView = 0;
 839         m_fileItemDelegate = 0;
 840     }
 841
 842     Q_ASSERT(m_iconsView == 0);
 843     Q_ASSERT(m_detailsView == 0);
 844     Q_ASSERT(m_columnView == 0);
 845
 846     // ... and recreate it representing the current mode
 847     switch (m_mode) {
 848     case IconsView: {
 849         m_iconsView = new DolphinIconsView(this, m_controller);
 850         view = m_iconsView;
 851         break;
 852     }
 853
 854     case DetailsView:
 855         m_detailsView = new DolphinDetailsView(this, m_controller);
 856         view = m_detailsView;
 857         break;
 858
 859     case ColumnView:
 860         m_columnView = new DolphinColumnView(this, m_controller);
 861         view = m_columnView;
 862         break;
 863     }
 864
 865     Q_ASSERT(view != 0);
 866
 867     m_fileItemDelegate = new KFileItemDelegate(view);
 868     view->setItemDelegate(m_fileItemDelegate);
 869
 870     view->setModel(m_proxyModel);
 871     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
 872
 873     new KMimeTypeResolver(view, m_dolphinModel);
 874     m_topLayout->insertWidget(1, view);
 875
 876     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
 877             this, SLOT(emitSelectionChangedSignal()));
 878     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
 879             this, SLOT(emitContentsMoved()));
 880     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
 881             this, SLOT(emitContentsMoved()));
 882 }
 883
 884 QAbstractItemView* DolphinView::itemView() const
 885 {
 886     if (m_detailsView != 0) {
 887         return m_detailsView;
 888     } else if (m_columnView != 0) {
 889         return m_columnView;
 890     }
 891
 892     return m_iconsView;
 893 }
 894
 895 bool DolphinView::isCutItem(const KFileItem& item) const
 896 {
 897     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 898     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
 899
 900     const KUrl& itemUrl = item.url();
 901     KUrl::List::const_iterator it = cutUrls.begin();
 902     const KUrl::List::const_iterator end = cutUrls.end();
 903     while (it != end) {
 904         if (*it == itemUrl) {
 905             return true;
 906         }
 907         ++it;
 908     }
 909
 910     return false;
 911 }
 912
 913 void DolphinView::applyCutItemEffect()
 914 {
 915     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 916     if (!KonqMimeData::decodeIsCutSelection(mimeData)) {
 917         return;
 918     }
 919
 920     KFileItemList items(m_dirLister->items());
 921     KFileItemList::const_iterator it = items.begin();
 922     const KFileItemList::const_iterator end = items.end();
 923     while (it != end) {
 924         const KFileItem item = *it;
 925         if (isCutItem(item)) {
 926             const QModelIndex index = m_dolphinModel->indexForItem(item);
 927             const QVariant value = m_dolphinModel->data(index, Qt::DecorationRole);
 928             if (value.type() == QVariant::Icon) {
 929                 const QIcon icon(qvariant_cast<QIcon>(value));
 930                 QPixmap pixmap = icon.pixmap(128, 128);
 931
 932                 // remember current pixmap for the item to be able
 933                 // to restore it when other items get cut
 934                 CutItem cutItem;
 935                 cutItem.url = item.url();
 936                 cutItem.pixmap = pixmap;
 937                 m_cutItemsCache.append(cutItem);
 938
 939                 // apply icon effect to the cut item
 940                 KIconEffect iconEffect;
 941                 pixmap = iconEffect.apply(pixmap, KIconLoader::Desktop, KIconLoader::DisabledState);
 942                 m_dolphinModel->setData(index, QIcon(pixmap), Qt::DecorationRole);
 943             }
 944         }
 945         ++it;
 946     }
 947 }
 948
 949 KToggleAction* DolphinView::iconsModeAction(KActionCollection* actionCollection)
 950 {
 951     KToggleAction* iconsView = actionCollection->add<KToggleAction>("icons");
 952     iconsView->setText(i18nc("@action:inmenu View Mode", "Icons"));
 953     iconsView->setShortcut(Qt::CTRL | Qt::Key_1);
 954     iconsView->setIcon(KIcon("fileview-icon"));
 955     iconsView->setData(QVariant::fromValue(IconsView));
 956     return iconsView;
 957 }
 958
 959 KToggleAction* DolphinView::detailsModeAction(KActionCollection* actionCollection)
 960 {
 961     KToggleAction* detailsView = actionCollection->add<KToggleAction>("details");
 962     detailsView->setText(i18nc("@action:inmenu View Mode", "Details"));
 963     detailsView->setShortcut(Qt::CTRL | Qt::Key_2);
 964     detailsView->setIcon(KIcon("fileview-detailed"));
 965     detailsView->setData(QVariant::fromValue(DetailsView));
 966     return detailsView;
 967 }
 968
 969 KToggleAction* DolphinView::columnsModeAction(KActionCollection* actionCollection)
 970 {
 971     KToggleAction* columnView = actionCollection->add<KToggleAction>("columns");
 972     columnView->setText(i18nc("@action:inmenu View Mode", "Columns"));
 973     columnView->setShortcut(Qt::CTRL | Qt::Key_3);
 974     columnView->setIcon(KIcon("fileview-column"));
 975     columnView->setData(QVariant::fromValue(ColumnView));
 976     return columnView;
 977 }
 978
 979 QString DolphinView::currentViewModeActionName() const
 980 {
 981     switch (m_mode) {
 982     case DolphinView::IconsView:
 983         return "icons";
 984     case DolphinView::DetailsView:
 985         return "details";
 986     case DolphinView::ColumnView:
 987         return "columns";
 988     }
 989     return QString(); // can't happen
 990 }
 991
 992 #include "dolphinview.moc"