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
  23 #include <QApplication>
  24 #include <QClipboard>
  25 #include <QKeyEvent>
  26 #include <QItemSelection>
  27 #include <QBoxLayout>
  28 #include <QTimer>
  29 #include <QScrollBar>
  30
  31 #include <kcolorscheme.h>
  32 #include <kdirlister.h>
  33 #include <kfileitemdelegate.h>
  34 #include <klocale.h>
  35 #include <kiconeffect.h>
  36 #include <kio/netaccess.h>
  37 #include <kio/renamedialog.h>
  38 #include <kio/previewjob.h>
  39 #include <kmimetyperesolver.h>
  40 #include <konqmimedata.h>
  41 #include <konq_operations.h>
  42 #include <kurl.h>
  43
  44 #include "dolphinmodel.h"
  45 #include "dolphincolumnview.h"
  46 #include "dolphincontroller.h"
  47 #include "dolphinsortfilterproxymodel.h"
  48 #include "dolphindetailsview.h"
  49 #include "dolphiniconsview.h"
  50 #include "renamedialog.h"
  51 #include "viewproperties.h"
  52 #include "dolphinsettings.h"
  53 #include "dolphin_generalsettings.h"
  54 #include "dolphincategorydrawer.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_loadingDirectory(false),
  64     m_initializeColumnView(false),
  65     m_mode(DolphinView::IconsView),
  66     m_topLayout(0),
  67     m_controller(0),
  68     m_iconsView(0),
  69     m_detailsView(0),
  70     m_columnView(0),
  71     m_fileItemDelegate(0),
  72     m_dolphinModel(dolphinModel),
  73     m_dirLister(dirLister),
  74     m_proxyModel(proxyModel),
  75     m_rootUrl(url)
  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 QList<KFileItem>&)),
  89             this, SLOT(generatePreviews(const QList<KFileItem>&)));
  90
  91     m_controller = new DolphinController(this);
  92     m_controller->setUrl(url);
  93     connect(m_controller, SIGNAL(urlChanged(const KUrl&)),
  94             this, SIGNAL(urlChanged(const KUrl&)));
  95     connect(m_controller, SIGNAL(requestContextMenu(const QPoint&)),
  96             this, SLOT(openContextMenu(const QPoint&)));
  97     connect(m_controller, SIGNAL(urlsDropped(const KUrl::List&, const KUrl&, const QModelIndex&, QWidget*)),
  98             this, SLOT(dropUrls(const KUrl::List&, const KUrl&, const QModelIndex&, QWidget*)));
  99     connect(m_controller, SIGNAL(sortingChanged(DolphinView::Sorting)),
 100             this, SLOT(updateSorting(DolphinView::Sorting)));
 101     connect(m_controller, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 102             this, SLOT(updateSortOrder(Qt::SortOrder)));
 103     connect(m_controller, SIGNAL(itemTriggered(const QModelIndex&)),
 104             this, SLOT(triggerItem(const QModelIndex&)));
 105     connect(m_controller, SIGNAL(activated()),
 106             this, SLOT(activate()));
 107     connect(m_controller, SIGNAL(itemEntered(const QModelIndex&)),
 108             this, SLOT(showHoverInformation(const QModelIndex&)));
 109     connect(m_controller, SIGNAL(viewportEntered()),
 110             this, SLOT(clearHoverInformation()));
 111
 112     applyViewProperties(url);
 113     m_topLayout->addWidget(itemView());
 114 }
 115
 116 DolphinView::~DolphinView()
 117 {
 118 }
 119
 120 const KUrl& DolphinView::url() const
 121 {
 122     return m_controller->url();
 123 }
 124
 125 void DolphinView::setRootUrl(const KUrl& url)
 126 {
 127     m_rootUrl = url;
 128 }
 129
 130 KUrl DolphinView::rootUrl() const
 131 {
 132     return isColumnViewActive() ? m_dirLister->url() : url();
 133 }
 134
 135 void DolphinView::setActive(bool active)
 136 {
 137     if (active == m_active) {
 138         return;
 139     }
 140
 141     m_active = active;
 142
 143     updateViewportColor();
 144     update();
 145
 146     if (active) {
 147         emit activated();
 148     }
 149 }
 150
 151 bool DolphinView::isActive() const
 152 {
 153     return m_active;
 154 }
 155
 156 void DolphinView::setMode(Mode mode)
 157 {
 158     if (mode == m_mode) {
 159         return; // the wished mode is already set
 160     }
 161
 162     m_mode = mode;
 163
 164     if (isColumnViewActive()) {
 165         // When changing the mode in the column view, it makes sense
 166         // to go back to the root URL of the column view automatically.
 167         // Otherwise there it would not be possible to turn off the column view
 168         // without focusing the first column.
 169         setUrl(m_dirLister->url());
 170         m_controller->setUrl(m_dirLister->url());
 171     }
 172
 173     const KUrl viewPropsUrl = viewPropertiesUrl();
 174     ViewProperties props(viewPropsUrl);
 175     props.setViewMode(m_mode);
 176
 177     createView();
 178     startDirLister(viewPropsUrl);
 179
 180     emit modeChanged();
 181 }
 182
 183 DolphinView::Mode DolphinView::mode() const
 184 {
 185     return m_mode;
 186 }
 187
 188 void DolphinView::setShowPreview(bool show)
 189 {
 190     const KUrl viewPropsUrl = viewPropertiesUrl();
 191     ViewProperties props(viewPropsUrl);
 192     props.setShowPreview(show);
 193
 194     m_controller->setShowPreview(show);
 195     emit showPreviewChanged();
 196
 197     startDirLister(viewPropsUrl, true);
 198 }
 199
 200 bool DolphinView::showPreview() const
 201 {
 202     return m_controller->showPreview();
 203 }
 204
 205 void DolphinView::setShowHiddenFiles(bool show)
 206 {
 207     if (m_dirLister->showingDotFiles() == show) {
 208         return;
 209     }
 210
 211     const KUrl viewPropsUrl = viewPropertiesUrl();
 212     ViewProperties props(viewPropsUrl);
 213     props.setShowHiddenFiles(show);
 214
 215     m_dirLister->setShowingDotFiles(show);
 216     emit showHiddenFilesChanged();
 217
 218     startDirLister(viewPropsUrl, true);
 219 }
 220
 221 bool DolphinView::showHiddenFiles() const
 222 {
 223     return m_dirLister->showingDotFiles();
 224 }
 225
 226 void DolphinView::setCategorizedSorting(bool categorized)
 227 {
 228     if (!supportsCategorizedSorting() || (categorized == categorizedSorting())) {
 229         return;
 230     }
 231
 232     Q_ASSERT(m_iconsView != 0);
 233
 234     ViewProperties props(viewPropertiesUrl());
 235     props.setCategorizedSorting(categorized);
 236     props.save();
 237
 238     m_proxyModel->setCategorizedModel(categorized);
 239     m_proxyModel->sort(m_proxyModel->sortColumn(), m_proxyModel->sortOrder());
 240
 241     emit categorizedSortingChanged();
 242 }
 243
 244 bool DolphinView::categorizedSorting() const
 245 {
 246     return m_proxyModel->isCategorizedModel();
 247 }
 248
 249 bool DolphinView::supportsCategorizedSorting() const
 250 {
 251     return m_iconsView != 0;
 252 }
 253
 254 void DolphinView::selectAll()
 255 {
 256     itemView()->selectAll();
 257 }
 258
 259 void DolphinView::invertSelection()
 260 {
 261     QItemSelectionModel* selectionModel = itemView()->selectionModel();
 262     const QAbstractItemModel* itemModel = selectionModel->model();
 263
 264     const QModelIndex topLeft = itemModel->index(0, 0);
 265     const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 266                                                      itemModel->columnCount() - 1);
 267
 268     QItemSelection selection(topLeft, bottomRight);
 269     selectionModel->select(selection, QItemSelectionModel::Toggle);
 270 }
 271
 272 bool DolphinView::hasSelection() const
 273 {
 274     return itemView()->selectionModel()->hasSelection();
 275 }
 276
 277 void DolphinView::clearSelection()
 278 {
 279     itemView()->selectionModel()->clear();
 280 }
 281
 282 QList<KFileItem> DolphinView::selectedItems() const
 283 {
 284     const QAbstractItemView* view = itemView();
 285
 286     // Our view has a selection, we will map them back to the DolphinModel
 287     // and then fill the KFileItemList.
 288     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 289
 290     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 291     QList<KFileItem> itemList;
 292
 293     const QModelIndexList indexList = selection.indexes();
 294     foreach (QModelIndex index, indexList) {
 295         KFileItem item = m_dolphinModel->itemForIndex(index);
 296         if (!item.isNull()) {
 297             itemList.append(item);
 298         }
 299     }
 300
 301     return itemList;
 302 }
 303
 304 KUrl::List DolphinView::selectedUrls() const
 305 {
 306     KUrl::List urls;
 307     const QList<KFileItem> list = selectedItems();
 308     for ( QList<KFileItem>::const_iterator it = list.begin(), end = list.end();
 309           it != end; ++it ) {
 310         urls.append((*it).url());
 311     }
 312     return urls;
 313 }
 314
 315 KFileItem DolphinView::fileItem(const QModelIndex& index) const
 316 {
 317     const QModelIndex dolphinModelIndex = m_proxyModel->mapToSource(index);
 318     return m_dolphinModel->itemForIndex(dolphinModelIndex);
 319 }
 320
 321 void DolphinView::setContentsPosition(int x, int y)
 322 {
 323     QAbstractItemView* view = itemView();
 324
 325     // the ColumnView takes care itself for the horizontal scrolling
 326     if (!isColumnViewActive()) {
 327         view->horizontalScrollBar()->setValue(x);
 328     }
 329     view->verticalScrollBar()->setValue(y);
 330
 331     m_loadingDirectory = false;
 332 }
 333
 334 QPoint DolphinView::contentsPosition() const
 335 {
 336     const int x = itemView()->horizontalScrollBar()->value();
 337     const int y = itemView()->verticalScrollBar()->value();
 338     return QPoint(x, y);
 339 }
 340
 341 void DolphinView::zoomIn()
 342 {
 343     m_controller->triggerZoomIn();
 344 }
 345
 346 void DolphinView::zoomOut()
 347 {
 348     m_controller->triggerZoomOut();
 349 }
 350
 351 bool DolphinView::isZoomInPossible() const
 352 {
 353     return m_controller->isZoomInPossible();
 354 }
 355
 356 bool DolphinView::isZoomOutPossible() const
 357 {
 358     return m_controller->isZoomOutPossible();
 359 }
 360
 361 void DolphinView::setSorting(Sorting sorting)
 362 {
 363     if (sorting != this->sorting()) {
 364         updateSorting(sorting);
 365     }
 366 }
 367
 368 DolphinView::Sorting DolphinView::sorting() const
 369 {
 370     return m_proxyModel->sorting();
 371 }
 372
 373 void DolphinView::setSortOrder(Qt::SortOrder order)
 374 {
 375     if (sortOrder() != order) {
 376         updateSortOrder(order);
 377     }
 378 }
 379
 380 Qt::SortOrder DolphinView::sortOrder() const
 381 {
 382     return m_proxyModel->sortOrder();
 383 }
 384
 385 void DolphinView::setAdditionalInfo(KFileItemDelegate::AdditionalInformation info)
 386 {
 387     const KUrl viewPropsUrl = viewPropertiesUrl();
 388     ViewProperties props(viewPropsUrl);
 389     props.setAdditionalInfo(info);
 390
 391     m_controller->setShowAdditionalInfo(info != KFileItemDelegate::NoInformation);
 392     m_fileItemDelegate->setAdditionalInformation(info);
 393
 394     emit additionalInfoChanged(info);
 395     startDirLister(viewPropsUrl, true);
 396 }
 397
 398 KFileItemDelegate::AdditionalInformation DolphinView::additionalInfo() const
 399 {
 400     return m_fileItemDelegate->additionalInformation();
 401 }
 402
 403 void DolphinView::reload()
 404 {
 405     setUrl(url());
 406     startDirLister(url(), true);
 407 }
 408
 409 void DolphinView::refresh()
 410 {
 411     createView();
 412     applyViewProperties(m_controller->url());
 413     reload();
 414     updateViewportColor();
 415 }
 416
 417 void DolphinView::setUrl(const KUrl& url)
 418 {
 419     if (m_controller->url() == url) {
 420         return;
 421     }
 422
 423     const KUrl oldRootUrl = rootUrl();
 424     m_controller->setUrl(url); // emits urlChanged, which we forward
 425
 426     const bool restoreColumnView = !isColumnViewActive()
 427                                    && m_rootUrl.isParentOf(url)
 428                                    && (m_rootUrl != url);
 429     if (restoreColumnView) {
 430         applyViewProperties(m_rootUrl);
 431         startDirLister(m_rootUrl);
 432         Q_ASSERT(itemView() == m_columnView);
 433         m_columnView->showColumn(url);
 434     } else {
 435         applyViewProperties(url);
 436         startDirLister(url);
 437     }
 438
 439     itemView()->setFocus();
 440
 441     const KUrl newRootUrl = rootUrl();
 442     if (newRootUrl != oldRootUrl) {
 443         emit rootUrlChanged(newRootUrl);
 444     }
 445 }
 446
 447 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 448 {
 449     QWidget::mouseReleaseEvent(event);
 450     setActive(true);
 451 }
 452 void DolphinView::activate()
 453 {
 454     setActive(true);
 455 }
 456
 457 void DolphinView::triggerItem(const QModelIndex& index)
 458 {
 459     Q_ASSERT(index.isValid());
 460
 461     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 462     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 463         // items are selected by the user, hence don't trigger the
 464         // item specified by 'index'
 465         return;
 466     }
 467
 468     const KFileItem item = m_dolphinModel->itemForIndex(m_proxyModel->mapToSource(index));
 469
 470     if (item.isNull()) {
 471         return;
 472     }
 473
 474     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 475 }
 476
 477 void DolphinView::generatePreviews(const QList<KFileItem>& items)
 478 {
 479     if (m_controller->showPreview()) {
 480         KIO::PreviewJob* job = KIO::filePreview(items, 128);
 481         connect(job, SIGNAL(gotPreview(const KFileItem&, const QPixmap&)),
 482                 this, SLOT(showPreview(const KFileItem&, const QPixmap&)));
 483     }
 484 }
 485
 486 void DolphinView::showPreview(const KFileItem& item, const QPixmap& pixmap)
 487 {
 488     Q_ASSERT(!item.isNull());
 489     if (item.url().directory() != m_dirLister->url().path()) {
 490         // the preview job is still working on items of an older URL, hence
 491         // the item is not part of the directory model anymore
 492         return;
 493     }
 494
 495     const QModelIndex idx = m_dolphinModel->indexForItem(item);
 496     if (idx.isValid() && (idx.column() == 0)) {
 497         const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 498         if (KonqMimeData::decodeIsCutSelection(mimeData) && isCutItem(item)) {
 499             KIconEffect iconEffect;
 500             const QPixmap cutPixmap = iconEffect.apply(pixmap, K3Icon::Desktop, K3Icon::DisabledState);
 501             m_dolphinModel->setData(idx, QIcon(cutPixmap), Qt::DecorationRole);
 502         } else {
 503             m_dolphinModel->setData(idx, QIcon(pixmap), Qt::DecorationRole);
 504         }
 505     }
 506 }
 507
 508 void DolphinView::emitSelectionChangedSignal()
 509 {
 510     emit selectionChanged(DolphinView::selectedItems());
 511 }
 512
 513 void DolphinView::startDirLister(const KUrl& url, bool reload)
 514 {
 515     if (!url.isValid()) {
 516         const QString location(url.pathOrUrl());
 517         if (location.isEmpty()) {
 518             emit errorMessage(i18nc("@info:status", "The location is empty."));
 519         } else {
 520             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
 521         }
 522         return;
 523     }
 524
 525     m_cutItemsCache.clear();
 526     m_loadingDirectory = true;
 527
 528     m_dirLister->stop();
 529
 530     bool keepOldDirs = isColumnViewActive() && !m_initializeColumnView;
 531     m_initializeColumnView = false;
 532
 533     if (keepOldDirs) {
 534         // keeping old directories is only necessary for hierarchical views
 535         // like the column view
 536         if (reload) {
 537             // for the column view it is not enough to reload the directory lister,
 538             // so this task is delegated to the column view directly
 539             m_columnView->reload();
 540         } else if (m_dirLister->directories().contains(url)) {
 541             // The dir lister contains the directory already, so
 542             // KDirLister::openUrl() may not get invoked twice.
 543             m_dirLister->updateDirectory(url);
 544         } else {
 545             const KUrl& dirListerUrl = m_dirLister->url();
 546             if ((dirListerUrl == url) || !m_dirLister->url().isParentOf(url)) {
 547                 // The current URL is not a child of the dir lister
 548                 // URL. This may happen when e. g. a place has been selected
 549                 // and hence the view must be reset.
 550                 m_dirLister->openUrl(url, false, false);
 551             }
 552         }
 553     } else {
 554         m_dirLister->openUrl(url, false, reload);
 555     }
 556 }
 557
 558 KUrl DolphinView::viewPropertiesUrl() const
 559 {
 560     if (isColumnViewActive()) {
 561         return m_dirLister->url();
 562     }
 563
 564     return url();
 565 }
 566
 567 void DolphinView::applyViewProperties(const KUrl& url)
 568 {
 569     if (isColumnViewActive() && m_dirLister->url().isParentOf(url)) {
 570         // The column view is active, hence don't apply the view properties
 571         // of sub directories (represented by columns) to the view. The
 572         // view always represents the properties of the first column.
 573         return;
 574     }
 575
 576     const ViewProperties props(url);
 577
 578     const Mode mode = props.viewMode();
 579     if (m_mode != mode) {
 580         m_mode = mode;
 581         createView();
 582         emit modeChanged();
 583
 584         if (m_mode == ColumnView) {
 585             // The mode has been changed to the Column View. When starting the dir
 586             // lister with DolphinView::startDirLister() it is important to give a
 587             // hint that the dir lister may not keep the current directory
 588             // although this is the default for showing a hierarchy.
 589             m_initializeColumnView = true;
 590         }
 591     }
 592     if (itemView() == 0) {
 593         createView();
 594     }
 595     Q_ASSERT(itemView() != 0);
 596     Q_ASSERT(m_fileItemDelegate != 0);
 597
 598     const bool showHiddenFiles = props.showHiddenFiles();
 599     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
 600         m_dirLister->setShowingDotFiles(showHiddenFiles);
 601         emit showHiddenFilesChanged();
 602     }
 603
 604     const bool categorized = props.categorizedSorting();
 605     if (categorized != categorizedSorting()) {
 606         m_proxyModel->setCategorizedModel(categorized);
 607         emit categorizedSortingChanged();
 608     }
 609
 610     const DolphinView::Sorting sorting = props.sorting();
 611     if (sorting != m_proxyModel->sorting()) {
 612         m_proxyModel->setSorting(sorting);
 613         emit sortingChanged(sorting);
 614     }
 615
 616     const Qt::SortOrder sortOrder = props.sortOrder();
 617     if (sortOrder != m_proxyModel->sortOrder()) {
 618         m_proxyModel->setSortOrder(sortOrder);
 619         emit sortOrderChanged(sortOrder);
 620     }
 621
 622     KFileItemDelegate::AdditionalInformation info = props.additionalInfo();
 623     if (info != m_fileItemDelegate->additionalInformation()) {
 624         m_controller->setShowAdditionalInfo(info != KFileItemDelegate::NoInformation);
 625         m_fileItemDelegate->setAdditionalInformation(info);
 626         emit additionalInfoChanged(info);
 627     }
 628
 629     const bool showPreview = props.showPreview();
 630     if (showPreview != m_controller->showPreview()) {
 631         m_controller->setShowPreview(showPreview);
 632         emit showPreviewChanged();
 633     }
 634 }
 635
 636 void DolphinView::changeSelection(const QList<KFileItem>& selection)
 637 {
 638     clearSelection();
 639     if (selection.isEmpty()) {
 640         return;
 641     }
 642     const KUrl& baseUrl = url();
 643     KUrl url;
 644     QItemSelection new_selection;
 645     foreach(const KFileItem& item, selection) {
 646         url = item.url().upUrl();
 647         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 648             QModelIndex index = m_proxyModel->mapFromSource(m_dolphinModel->indexForItem(item));
 649             new_selection.select(index, index);
 650         }
 651     }
 652     itemView()->selectionModel()->select(new_selection,
 653                                          QItemSelectionModel::ClearAndSelect
 654                                          | QItemSelectionModel::Current);
 655 }
 656
 657 void DolphinView::openContextMenu(const QPoint& pos)
 658 {
 659     KFileItem item;
 660
 661     const QModelIndex index = itemView()->indexAt(pos);
 662     if (isValidNameIndex(index)) {
 663         item = fileItem(index);
 664     }
 665
 666     emit requestContextMenu(item, url());
 667 }
 668
 669 void DolphinView::dropUrls(const KUrl::List& urls,
 670                            const KUrl& destPath,
 671                            const QModelIndex& destIndex,
 672                            QWidget* source)
 673 {
 674     KFileItem directory;
 675     if (isValidNameIndex(destIndex)) {
 676         KFileItem item = fileItem(destIndex);
 677         Q_ASSERT(!item.isNull());
 678         if (item.isDir()) {
 679             // the URLs are dropped above a directory
 680             directory = item;
 681         }
 682     }
 683
 684     if ((directory.isNull()) && (source == itemView())) {
 685         // The dropping is done into the same viewport where
 686         // the dragging has been started. Just ignore this...
 687         return;
 688     }
 689
 690     const KUrl& destination = (directory.isNull()) ?
 691                               destPath : directory.url();
 692     dropUrls(urls, destination);
 693 }
 694
 695 void DolphinView::dropUrls(const KUrl::List& urls,
 696                            const KUrl& destination)
 697 {
 698     emit urlsDropped(urls, destination);
 699 }
 700
 701 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 702 {
 703     ViewProperties props(viewPropertiesUrl());
 704     props.setSorting(sorting);
 705
 706     m_proxyModel->setSorting(sorting);
 707
 708     emit sortingChanged(sorting);
 709 }
 710
 711 void DolphinView::updateSortOrder(Qt::SortOrder order)
 712 {
 713     ViewProperties props(viewPropertiesUrl());
 714     props.setSortOrder(order);
 715
 716     m_proxyModel->setSortOrder(order);
 717
 718     emit sortOrderChanged(order);
 719 }
 720
 721 void DolphinView::emitContentsMoved()
 722 {
 723     // only emit the contents moved signal if:
 724     // - no directory loading is ongoing (this would reset the contents position
 725     //   always to (0, 0))
 726     // - if the Column View is active: the column view does an automatic
 727     //   positioning during the loading operation, which must be remembered
 728     if (!m_loadingDirectory || isColumnViewActive()) {
 729         const QPoint pos(contentsPosition());
 730         emit contentsMoved(pos.x(), pos.y());
 731     }
 732 }
 733
 734 void DolphinView::updateCutItems()
 735 {
 736     // restore the icons of all previously selected items to the
 737     // original state...
 738     QList<CutItem>::const_iterator it = m_cutItemsCache.begin();
 739     QList<CutItem>::const_iterator end = m_cutItemsCache.end();
 740     while (it != end) {
 741         const QModelIndex index = m_dolphinModel->indexForUrl((*it).url);
 742         if (index.isValid()) {
 743             m_dolphinModel->setData(index, QIcon((*it).pixmap), Qt::DecorationRole);
 744         }
 745         ++it;
 746     }
 747     m_cutItemsCache.clear();
 748
 749     // ... and apply an item effect to all currently cut items
 750     applyCutItemEffect();
 751 }
 752
 753 void DolphinView::showHoverInformation(const QModelIndex& index)
 754 {
 755     if (hasSelection()) {
 756         return;
 757     }
 758
 759     const KFileItem item = fileItem(index);
 760     if (!item.isNull()) {
 761         emit requestItemInfo(item);
 762     }
 763 }
 764
 765 void DolphinView::clearHoverInformation()
 766 {
 767     emit requestItemInfo(KFileItem());
 768 }
 769
 770
 771 void DolphinView::createView()
 772 {
 773     // delete current view
 774     QAbstractItemView* view = itemView();
 775     if (view != 0) {
 776         m_topLayout->removeWidget(view);
 777         view->close();
 778         view->deleteLater();
 779         view = 0;
 780         m_iconsView = 0;
 781         m_detailsView = 0;
 782         m_columnView = 0;
 783         m_fileItemDelegate = 0;
 784     }
 785
 786     Q_ASSERT(m_iconsView == 0);
 787     Q_ASSERT(m_detailsView == 0);
 788     Q_ASSERT(m_columnView == 0);
 789
 790     // ... and recreate it representing the current mode
 791     switch (m_mode) {
 792     case IconsView:
 793         m_iconsView = new DolphinIconsView(this, m_controller);
 794         m_iconsView->setCategoryDrawer(new DolphinCategoryDrawer());
 795         view = m_iconsView;
 796         break;
 797
 798     case DetailsView:
 799         m_detailsView = new DolphinDetailsView(this, m_controller);
 800         view = m_detailsView;
 801         break;
 802
 803     case ColumnView:
 804         m_columnView = new DolphinColumnView(this, m_controller);
 805         view = m_columnView;
 806         break;
 807     }
 808
 809     Q_ASSERT(view != 0);
 810
 811     m_fileItemDelegate = new KFileItemDelegate(view);
 812     view->setItemDelegate(m_fileItemDelegate);
 813
 814     view->setModel(m_proxyModel);
 815     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
 816
 817     new KMimeTypeResolver(view, m_dolphinModel);
 818     m_topLayout->insertWidget(1, view);
 819
 820     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
 821             this, SLOT(emitSelectionChangedSignal()));
 822     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
 823             this, SLOT(emitContentsMoved()));
 824     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
 825             this, SLOT(emitContentsMoved()));
 826     view->setFocus();
 827 }
 828
 829 QAbstractItemView* DolphinView::itemView() const
 830 {
 831     if (m_detailsView != 0) {
 832         return m_detailsView;
 833     } else if (m_columnView != 0) {
 834         return m_columnView;
 835     }
 836
 837     return m_iconsView;
 838 }
 839
 840 bool DolphinView::isValidNameIndex(const QModelIndex& index) const
 841 {
 842     return index.isValid() && (index.column() == DolphinModel::Name);
 843 }
 844
 845 bool DolphinView::isCutItem(const KFileItem& item) const
 846 {
 847     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 848     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
 849
 850     const KUrl& itemUrl = item.url();
 851     KUrl::List::const_iterator it = cutUrls.begin();
 852     const KUrl::List::const_iterator end = cutUrls.end();
 853     while (it != end) {
 854         if (*it == itemUrl) {
 855             return true;
 856         }
 857         ++it;
 858     }
 859
 860     return false;
 861 }
 862
 863 void DolphinView::applyCutItemEffect()
 864 {
 865     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 866     if (!KonqMimeData::decodeIsCutSelection(mimeData)) {
 867         return;
 868     }
 869
 870     KFileItemList items(m_dirLister->items());
 871     KFileItemList::const_iterator it = items.begin();
 872     const KFileItemList::const_iterator end = items.end();
 873     while (it != end) {
 874         KFileItem* item = *it;
 875         if (isCutItem(*item)) {
 876             const QModelIndex index = m_dolphinModel->indexForItem(*item);
 877             // Huh? the item is already known
 878             //const KFileItem item = m_dolphinModel->itemForIndex(index);
 879             const QVariant value = m_dolphinModel->data(index, Qt::DecorationRole);
 880             if (value.type() == QVariant::Icon) {
 881                 const QIcon icon(qvariant_cast<QIcon>(value));
 882                 QPixmap pixmap = icon.pixmap(128, 128);
 883
 884                 // remember current pixmap for the item to be able
 885                 // to restore it when other items get cut
 886                 CutItem cutItem;
 887                 cutItem.url = item->url();
 888                 cutItem.pixmap = pixmap;
 889                 m_cutItemsCache.append(cutItem);
 890
 891                 // apply icon effect to the cut item
 892                 KIconEffect iconEffect;
 893                 pixmap = iconEffect.apply(pixmap, K3Icon::Desktop, K3Icon::DisabledState);
 894                 m_dolphinModel->setData(index, QIcon(pixmap), Qt::DecorationRole);
 895             }
 896         }
 897         ++it;
 898     }
 899 }
 900
 901 void DolphinView::updateViewportColor()
 902 {
 903     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 904     if (m_active) {
 905         emit urlChanged(url()); // Hmm, this is a hack; the url hasn't really changed.
 906         emit selectionChanged(selectedItems());
 907     } else {
 908         color.setAlpha(0);
 909     }
 910
 911     QWidget* viewport = itemView()->viewport();
 912     QPalette palette;
 913     palette.setColor(viewport->backgroundRole(), color);
 914     viewport->setPalette(palette);
 915 }
 916
 917 #include "dolphinview.moc"