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 {
  76     setFocusPolicy(Qt::StrongFocus);
  77     m_topLayout = new QVBoxLayout(this);
  78     m_topLayout->setSpacing(0);
  79     m_topLayout->setMargin(0);
  80
  81     QClipboard* clipboard = QApplication::clipboard();
  82     connect(clipboard, SIGNAL(dataChanged()),
  83             this, SLOT(updateCutItems()));
  84
  85     connect(m_dirLister, SIGNAL(completed()),
  86             this, SLOT(updateCutItems()));
  87     connect(m_dirLister, SIGNAL(newItems(const QList<KFileItem>&)),
  88             this, SLOT(generatePreviews(const QList<KFileItem>&)));
  89
  90     m_controller = new DolphinController(this);
  91     m_controller->setUrl(url);
  92     connect(m_controller, SIGNAL(urlChanged(const KUrl&)),
  93             this, SIGNAL(urlChanged(const KUrl&)));
  94     connect(m_controller, SIGNAL(requestContextMenu(const QPoint&)),
  95             this, SLOT(openContextMenu(const QPoint&)));
  96     connect(m_controller, SIGNAL(urlsDropped(const KUrl::List&, const KUrl&, const QModelIndex&, QWidget*)),
  97             this, SLOT(dropUrls(const KUrl::List&, const KUrl&, const QModelIndex&, QWidget*)));
  98     connect(m_controller, SIGNAL(sortingChanged(DolphinView::Sorting)),
  99             this, SLOT(updateSorting(DolphinView::Sorting)));
 100     connect(m_controller, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 101             this, SLOT(updateSortOrder(Qt::SortOrder)));
 102     connect(m_controller, SIGNAL(itemTriggered(const QModelIndex&)),
 103             this, SLOT(triggerItem(const QModelIndex&)));
 104     connect(m_controller, SIGNAL(activated()),
 105             this, SLOT(activate()));
 106     connect(m_controller, SIGNAL(itemEntered(const QModelIndex&)),
 107             this, SLOT(showHoverInformation(const QModelIndex&)));
 108     connect(m_controller, SIGNAL(viewportEntered()),
 109             this, SLOT(clearHoverInformation()));
 110
 111     applyViewProperties(url);
 112     m_topLayout->addWidget(itemView());
 113 }
 114
 115 DolphinView::~DolphinView()
 116 {
 117 }
 118
 119 const KUrl& DolphinView::url() const
 120 {
 121     return m_controller->url();
 122 }
 123
 124 KUrl DolphinView::rootUrl() const
 125 {
 126     return isColumnViewActive() ? m_dirLister->url() : url();
 127 }
 128
 129 void DolphinView::setActive(bool active)
 130 {
 131     if (active == m_active) {
 132         return;
 133     }
 134
 135     m_active = active;
 136
 137     updateViewportColor();
 138     update();
 139
 140     if (active) {
 141         emit activated();
 142     }
 143 }
 144
 145 bool DolphinView::isActive() const
 146 {
 147     return m_active;
 148 }
 149
 150 void DolphinView::setMode(Mode mode)
 151 {
 152     if (mode == m_mode) {
 153         return; // the wished mode is already set
 154     }
 155
 156     m_mode = mode;
 157
 158     if (isColumnViewActive()) {
 159         // When changing the mode in the column view, it makes sense
 160         // to go back to the root URL of the column view automatically.
 161         // Otherwise there it would not be possible to turn off the column view
 162         // without focusing the first column.
 163         setUrl(m_dirLister->url());
 164         m_controller->setUrl(m_dirLister->url());
 165     }
 166
 167     const KUrl viewPropsUrl = viewPropertiesUrl();
 168     ViewProperties props(viewPropsUrl);
 169     props.setViewMode(m_mode);
 170
 171     createView();
 172     startDirLister(viewPropsUrl);
 173
 174     emit modeChanged();
 175 }
 176
 177 DolphinView::Mode DolphinView::mode() const
 178 {
 179     return m_mode;
 180 }
 181
 182 void DolphinView::setShowPreview(bool show)
 183 {
 184     const KUrl viewPropsUrl = viewPropertiesUrl();
 185     ViewProperties props(viewPropsUrl);
 186     props.setShowPreview(show);
 187
 188     m_controller->setShowPreview(show);
 189     emit showPreviewChanged();
 190
 191     startDirLister(viewPropsUrl, true);
 192 }
 193
 194 bool DolphinView::showPreview() const
 195 {
 196     return m_controller->showPreview();
 197 }
 198
 199 void DolphinView::setShowHiddenFiles(bool show)
 200 {
 201     if (m_dirLister->showingDotFiles() == show) {
 202         return;
 203     }
 204
 205     const KUrl viewPropsUrl = viewPropertiesUrl();
 206     ViewProperties props(viewPropsUrl);
 207     props.setShowHiddenFiles(show);
 208
 209     m_dirLister->setShowingDotFiles(show);
 210     emit showHiddenFilesChanged();
 211
 212     startDirLister(viewPropsUrl, true);
 213 }
 214
 215 bool DolphinView::showHiddenFiles() const
 216 {
 217     return m_dirLister->showingDotFiles();
 218 }
 219
 220 void DolphinView::setCategorizedSorting(bool categorized)
 221 {
 222     if (!supportsCategorizedSorting() || (categorized == categorizedSorting())) {
 223         return;
 224     }
 225
 226     Q_ASSERT(m_iconsView != 0);
 227
 228     ViewProperties props(viewPropertiesUrl());
 229     props.setCategorizedSorting(categorized);
 230     props.save();
 231
 232     m_proxyModel->setCategorizedModel(categorized);
 233     m_proxyModel->sort(m_proxyModel->sortColumn(), m_proxyModel->sortOrder());
 234
 235     emit categorizedSortingChanged();
 236 }
 237
 238 bool DolphinView::categorizedSorting() const
 239 {
 240     return m_proxyModel->isCategorizedModel();
 241 }
 242
 243 bool DolphinView::supportsCategorizedSorting() const
 244 {
 245     return m_iconsView != 0;
 246 }
 247
 248 void DolphinView::selectAll()
 249 {
 250     itemView()->selectAll();
 251 }
 252
 253 void DolphinView::invertSelection()
 254 {
 255     if (isColumnViewActive()) {
 256         // QAbstractItemView does not offer a virtual method invertSelection()
 257         // as counterpart to QAbstractItemView::selectAll(). This makes it
 258         // necessary to delegate the inverting of the selection to the
 259         // column view, as only the selection of the active column should get
 260         // inverted.
 261         m_columnView->invertSelection();
 262     } else {
 263         QItemSelectionModel* selectionModel = itemView()->selectionModel();
 264         const QAbstractItemModel* itemModel = selectionModel->model();
 265
 266         const QModelIndex topLeft = itemModel->index(0, 0);
 267         const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 268                                                          itemModel->columnCount() - 1);
 269
 270         const QItemSelection selection(topLeft, bottomRight);
 271         selectionModel->select(selection, QItemSelectionModel::Toggle);
 272     }
 273 }
 274
 275 bool DolphinView::hasSelection() const
 276 {
 277     return itemView()->selectionModel()->hasSelection();
 278 }
 279
 280 void DolphinView::clearSelection()
 281 {
 282     itemView()->selectionModel()->clear();
 283 }
 284
 285 QList<KFileItem> DolphinView::selectedItems() const
 286 {
 287     const QAbstractItemView* view = itemView();
 288
 289     // Our view has a selection, we will map them back to the DolphinModel
 290     // and then fill the KFileItemList.
 291     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 292
 293     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 294     QList<KFileItem> itemList;
 295
 296     const QModelIndexList indexList = selection.indexes();
 297     foreach (QModelIndex index, indexList) {
 298         KFileItem item = m_dolphinModel->itemForIndex(index);
 299         if (!item.isNull()) {
 300             itemList.append(item);
 301         }
 302     }
 303
 304     return itemList;
 305 }
 306
 307 KUrl::List DolphinView::selectedUrls() const
 308 {
 309     KUrl::List urls;
 310     const QList<KFileItem> list = selectedItems();
 311     for ( QList<KFileItem>::const_iterator it = list.begin(), end = list.end();
 312           it != end; ++it ) {
 313         urls.append((*it).url());
 314     }
 315     return urls;
 316 }
 317
 318 KFileItem DolphinView::fileItem(const QModelIndex& index) const
 319 {
 320     const QModelIndex dolphinModelIndex = m_proxyModel->mapToSource(index);
 321     return m_dolphinModel->itemForIndex(dolphinModelIndex);
 322 }
 323
 324 void DolphinView::setContentsPosition(int x, int y)
 325 {
 326     QAbstractItemView* view = itemView();
 327
 328     // the ColumnView takes care itself for the horizontal scrolling
 329     if (!isColumnViewActive()) {
 330         view->horizontalScrollBar()->setValue(x);
 331     }
 332     view->verticalScrollBar()->setValue(y);
 333
 334     m_loadingDirectory = false;
 335 }
 336
 337 QPoint DolphinView::contentsPosition() const
 338 {
 339     const int x = itemView()->horizontalScrollBar()->value();
 340     const int y = itemView()->verticalScrollBar()->value();
 341     return QPoint(x, y);
 342 }
 343
 344 void DolphinView::zoomIn()
 345 {
 346     m_controller->triggerZoomIn();
 347 }
 348
 349 void DolphinView::zoomOut()
 350 {
 351     m_controller->triggerZoomOut();
 352 }
 353
 354 bool DolphinView::isZoomInPossible() const
 355 {
 356     return m_controller->isZoomInPossible();
 357 }
 358
 359 bool DolphinView::isZoomOutPossible() const
 360 {
 361     return m_controller->isZoomOutPossible();
 362 }
 363
 364 void DolphinView::setSorting(Sorting sorting)
 365 {
 366     if (sorting != this->sorting()) {
 367         updateSorting(sorting);
 368     }
 369 }
 370
 371 DolphinView::Sorting DolphinView::sorting() const
 372 {
 373     return m_proxyModel->sorting();
 374 }
 375
 376 void DolphinView::setSortOrder(Qt::SortOrder order)
 377 {
 378     if (sortOrder() != order) {
 379         updateSortOrder(order);
 380     }
 381 }
 382
 383 Qt::SortOrder DolphinView::sortOrder() const
 384 {
 385     return m_proxyModel->sortOrder();
 386 }
 387
 388 void DolphinView::setAdditionalInfo(KFileItemDelegate::AdditionalInformation info)
 389 {
 390     const KUrl viewPropsUrl = viewPropertiesUrl();
 391     ViewProperties props(viewPropsUrl);
 392     props.setAdditionalInfo(info);
 393
 394     m_controller->setShowAdditionalInfo(info != KFileItemDelegate::NoInformation);
 395     m_fileItemDelegate->setAdditionalInformation(info);
 396
 397     emit additionalInfoChanged(info);
 398     startDirLister(viewPropsUrl, true);
 399 }
 400
 401 KFileItemDelegate::AdditionalInformation DolphinView::additionalInfo() const
 402 {
 403     return m_fileItemDelegate->additionalInformation();
 404 }
 405
 406 void DolphinView::reload()
 407 {
 408     setUrl(url());
 409     startDirLister(url(), true);
 410 }
 411
 412 void DolphinView::refresh()
 413 {
 414     createView();
 415     applyViewProperties(m_controller->url());
 416     reload();
 417     updateViewportColor();
 418 }
 419
 420 void DolphinView::updateView(const KUrl& url, const KUrl& rootUrl)
 421 {
 422     if (m_controller->url() == url) {
 423         return;
 424     }
 425
 426     const bool restoreColumnView =  !rootUrl.isEmpty()
 427                                     && !rootUrl.equals(url, KUrl::CompareWithoutTrailingSlash)
 428                                     && rootUrl.isParentOf(url);
 429
 430     m_controller->setUrl(url); // emits urlChanged, which we forward
 431
 432     if (restoreColumnView) {
 433         applyViewProperties(rootUrl);
 434         Q_ASSERT(itemView() == m_columnView);
 435         startDirLister(rootUrl);
 436         m_columnView->showColumn(url);
 437     } else {
 438         applyViewProperties(url);
 439         startDirLister(url);
 440     }
 441
 442     itemView()->setFocus();
 443
 444     emit startedPathLoading(url);
 445 }
 446
 447 void DolphinView::setUrl(const KUrl& url)
 448 {
 449     updateView(url, KUrl());
 450 }
 451
 452 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 453 {
 454     QWidget::mouseReleaseEvent(event);
 455     setActive(true);
 456 }
 457 void DolphinView::activate()
 458 {
 459     setActive(true);
 460 }
 461
 462 void DolphinView::triggerItem(const QModelIndex& index)
 463 {
 464     Q_ASSERT(index.isValid());
 465
 466     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 467     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 468         // items are selected by the user, hence don't trigger the
 469         // item specified by 'index'
 470         return;
 471     }
 472
 473     const KFileItem item = m_dolphinModel->itemForIndex(m_proxyModel->mapToSource(index));
 474
 475     if (item.isNull()) {
 476         return;
 477     }
 478
 479     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 480 }
 481
 482 void DolphinView::generatePreviews(const QList<KFileItem>& items)
 483 {
 484     if (m_controller->showPreview()) {
 485         KIO::PreviewJob* job = KIO::filePreview(items, 128);
 486         connect(job, SIGNAL(gotPreview(const KFileItem&, const QPixmap&)),
 487                 this, SLOT(showPreview(const KFileItem&, const QPixmap&)));
 488     }
 489 }
 490
 491 void DolphinView::showPreview(const KFileItem& item, const QPixmap& pixmap)
 492 {
 493     Q_ASSERT(!item.isNull());
 494     if (item.url().directory() != m_dirLister->url().path()) {
 495         // the preview job is still working on items of an older URL, hence
 496         // the item is not part of the directory model anymore
 497         return;
 498     }
 499
 500     const QModelIndex idx = m_dolphinModel->indexForItem(item);
 501     if (idx.isValid() && (idx.column() == 0)) {
 502         const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 503         if (KonqMimeData::decodeIsCutSelection(mimeData) && isCutItem(item)) {
 504             KIconEffect iconEffect;
 505             const QPixmap cutPixmap = iconEffect.apply(pixmap, K3Icon::Desktop, K3Icon::DisabledState);
 506             m_dolphinModel->setData(idx, QIcon(cutPixmap), Qt::DecorationRole);
 507         } else {
 508             m_dolphinModel->setData(idx, QIcon(pixmap), Qt::DecorationRole);
 509         }
 510     }
 511 }
 512
 513 void DolphinView::emitSelectionChangedSignal()
 514 {
 515     emit selectionChanged(DolphinView::selectedItems());
 516 }
 517
 518 void DolphinView::startDirLister(const KUrl& url, bool reload)
 519 {
 520     if (!url.isValid()) {
 521         const QString location(url.pathOrUrl());
 522         if (location.isEmpty()) {
 523             emit errorMessage(i18nc("@info:status", "The location is empty."));
 524         } else {
 525             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
 526         }
 527         return;
 528     }
 529
 530     m_cutItemsCache.clear();
 531     m_loadingDirectory = true;
 532
 533     m_dirLister->stop();
 534
 535     bool keepOldDirs = isColumnViewActive() && !m_initializeColumnView;
 536     m_initializeColumnView = false;
 537
 538     if (keepOldDirs) {
 539         // keeping old directories is only necessary for hierarchical views
 540         // like the column view
 541         if (reload) {
 542             // for the column view it is not enough to reload the directory lister,
 543             // so this task is delegated to the column view directly
 544             m_columnView->reload();
 545         } else if (m_dirLister->directories().contains(url)) {
 546             // The dir lister contains the directory already, so
 547             // KDirLister::openUrl() may not get invoked twice.
 548             m_dirLister->updateDirectory(url);
 549         } else {
 550             const KUrl& dirListerUrl = m_dirLister->url();
 551             if ((dirListerUrl == url) || !m_dirLister->url().isParentOf(url)) {
 552                 // The current URL is not a child of the dir lister
 553                 // URL. This may happen when e. g. a place has been selected
 554                 // and hence the view must be reset.
 555                 m_dirLister->openUrl(url, false, false);
 556             }
 557         }
 558     } else {
 559         m_dirLister->openUrl(url, false, reload);
 560     }
 561 }
 562
 563 KUrl DolphinView::viewPropertiesUrl() const
 564 {
 565     if (isColumnViewActive()) {
 566         return m_dirLister->url();
 567     }
 568
 569     return url();
 570 }
 571
 572 void DolphinView::applyViewProperties(const KUrl& url)
 573 {
 574     if (isColumnViewActive() && m_dirLister->url().isParentOf(url)) {
 575         // The column view is active, hence don't apply the view properties
 576         // of sub directories (represented by columns) to the view. The
 577         // view always represents the properties of the first column.
 578         return;
 579     }
 580
 581     const ViewProperties props(url);
 582
 583     const Mode mode = props.viewMode();
 584     if (m_mode != mode) {
 585         m_mode = mode;
 586         createView();
 587         emit modeChanged();
 588
 589         if (m_mode == ColumnView) {
 590             // The mode has been changed to the Column View. When starting the dir
 591             // lister with DolphinView::startDirLister() it is important to give a
 592             // hint that the dir lister may not keep the current directory
 593             // although this is the default for showing a hierarchy.
 594             m_initializeColumnView = true;
 595         }
 596     }
 597     if (itemView() == 0) {
 598         createView();
 599     }
 600     Q_ASSERT(itemView() != 0);
 601     Q_ASSERT(m_fileItemDelegate != 0);
 602
 603     const bool showHiddenFiles = props.showHiddenFiles();
 604     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
 605         m_dirLister->setShowingDotFiles(showHiddenFiles);
 606         emit showHiddenFilesChanged();
 607     }
 608
 609     const bool categorized = props.categorizedSorting();
 610     if (categorized != categorizedSorting()) {
 611         m_proxyModel->setCategorizedModel(categorized);
 612         emit categorizedSortingChanged();
 613     }
 614
 615     const DolphinView::Sorting sorting = props.sorting();
 616     if (sorting != m_proxyModel->sorting()) {
 617         m_proxyModel->setSorting(sorting);
 618         emit sortingChanged(sorting);
 619     }
 620
 621     const Qt::SortOrder sortOrder = props.sortOrder();
 622     if (sortOrder != m_proxyModel->sortOrder()) {
 623         m_proxyModel->setSortOrder(sortOrder);
 624         emit sortOrderChanged(sortOrder);
 625     }
 626
 627     KFileItemDelegate::AdditionalInformation info = props.additionalInfo();
 628     if (info != m_fileItemDelegate->additionalInformation()) {
 629         m_controller->setShowAdditionalInfo(info != KFileItemDelegate::NoInformation);
 630         m_fileItemDelegate->setAdditionalInformation(info);
 631         emit additionalInfoChanged(info);
 632     }
 633
 634     const bool showPreview = props.showPreview();
 635     if (showPreview != m_controller->showPreview()) {
 636         m_controller->setShowPreview(showPreview);
 637         emit showPreviewChanged();
 638     }
 639 }
 640
 641 void DolphinView::changeSelection(const QList<KFileItem>& selection)
 642 {
 643     clearSelection();
 644     if (selection.isEmpty()) {
 645         return;
 646     }
 647     const KUrl& baseUrl = url();
 648     KUrl url;
 649     QItemSelection new_selection;
 650     foreach(const KFileItem& item, selection) {
 651         url = item.url().upUrl();
 652         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 653             QModelIndex index = m_proxyModel->mapFromSource(m_dolphinModel->indexForItem(item));
 654             new_selection.select(index, index);
 655         }
 656     }
 657     itemView()->selectionModel()->select(new_selection,
 658                                          QItemSelectionModel::ClearAndSelect
 659                                          | QItemSelectionModel::Current);
 660 }
 661
 662 void DolphinView::openContextMenu(const QPoint& pos)
 663 {
 664     KFileItem item;
 665
 666     const QModelIndex index = itemView()->indexAt(pos);
 667     if (isValidNameIndex(index)) {
 668         item = fileItem(index);
 669     }
 670
 671     emit requestContextMenu(item, url());
 672 }
 673
 674 void DolphinView::dropUrls(const KUrl::List& urls,
 675                            const KUrl& destPath,
 676                            const QModelIndex& destIndex,
 677                            QWidget* source)
 678 {
 679     KFileItem directory;
 680     if (isValidNameIndex(destIndex)) {
 681         KFileItem item = fileItem(destIndex);
 682         Q_ASSERT(!item.isNull());
 683         if (item.isDir()) {
 684             // the URLs are dropped above a directory
 685             directory = item;
 686         }
 687     }
 688
 689     if ((directory.isNull()) && (source == itemView())) {
 690         // The dropping is done into the same viewport where
 691         // the dragging has been started. Just ignore this...
 692         return;
 693     }
 694
 695     const KUrl& destination = (directory.isNull()) ?
 696                               destPath : directory.url();
 697     dropUrls(urls, destination);
 698 }
 699
 700 void DolphinView::dropUrls(const KUrl::List& urls,
 701                            const KUrl& destination)
 702 {
 703     emit urlsDropped(urls, destination);
 704 }
 705
 706 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 707 {
 708     ViewProperties props(viewPropertiesUrl());
 709     props.setSorting(sorting);
 710
 711     m_proxyModel->setSorting(sorting);
 712
 713     emit sortingChanged(sorting);
 714 }
 715
 716 void DolphinView::updateSortOrder(Qt::SortOrder order)
 717 {
 718     ViewProperties props(viewPropertiesUrl());
 719     props.setSortOrder(order);
 720
 721     m_proxyModel->setSortOrder(order);
 722
 723     emit sortOrderChanged(order);
 724 }
 725
 726 void DolphinView::emitContentsMoved()
 727 {
 728     // only emit the contents moved signal if:
 729     // - no directory loading is ongoing (this would reset the contents position
 730     //   always to (0, 0))
 731     // - if the Column View is active: the column view does an automatic
 732     //   positioning during the loading operation, which must be remembered
 733     if (!m_loadingDirectory || isColumnViewActive()) {
 734         const QPoint pos(contentsPosition());
 735         emit contentsMoved(pos.x(), pos.y());
 736     }
 737 }
 738
 739 void DolphinView::updateCutItems()
 740 {
 741     // restore the icons of all previously selected items to the
 742     // original state...
 743     QList<CutItem>::const_iterator it = m_cutItemsCache.begin();
 744     QList<CutItem>::const_iterator end = m_cutItemsCache.end();
 745     while (it != end) {
 746         const QModelIndex index = m_dolphinModel->indexForUrl((*it).url);
 747         if (index.isValid()) {
 748             m_dolphinModel->setData(index, QIcon((*it).pixmap), Qt::DecorationRole);
 749         }
 750         ++it;
 751     }
 752     m_cutItemsCache.clear();
 753
 754     // ... and apply an item effect to all currently cut items
 755     applyCutItemEffect();
 756 }
 757
 758 void DolphinView::showHoverInformation(const QModelIndex& index)
 759 {
 760     if (hasSelection()) {
 761         return;
 762     }
 763
 764     const KFileItem item = fileItem(index);
 765     if (!item.isNull()) {
 766         emit requestItemInfo(item);
 767     }
 768 }
 769
 770 void DolphinView::clearHoverInformation()
 771 {
 772     emit requestItemInfo(KFileItem());
 773 }
 774
 775
 776 void DolphinView::createView()
 777 {
 778     // delete current view
 779     QAbstractItemView* view = itemView();
 780     if (view != 0) {
 781         m_topLayout->removeWidget(view);
 782         view->close();
 783         view->deleteLater();
 784         view = 0;
 785         m_iconsView = 0;
 786         m_detailsView = 0;
 787         m_columnView = 0;
 788         m_fileItemDelegate = 0;
 789     }
 790
 791     Q_ASSERT(m_iconsView == 0);
 792     Q_ASSERT(m_detailsView == 0);
 793     Q_ASSERT(m_columnView == 0);
 794
 795     // ... and recreate it representing the current mode
 796     switch (m_mode) {
 797     case IconsView:
 798         m_iconsView = new DolphinIconsView(this, m_controller);
 799         m_iconsView->setCategoryDrawer(new DolphinCategoryDrawer());
 800         view = m_iconsView;
 801         break;
 802
 803     case DetailsView:
 804         m_detailsView = new DolphinDetailsView(this, m_controller);
 805         view = m_detailsView;
 806         break;
 807
 808     case ColumnView:
 809         m_columnView = new DolphinColumnView(this, m_controller);
 810         view = m_columnView;
 811         break;
 812     }
 813
 814     Q_ASSERT(view != 0);
 815
 816     m_fileItemDelegate = new KFileItemDelegate(view);
 817     view->setItemDelegate(m_fileItemDelegate);
 818
 819     view->setModel(m_proxyModel);
 820     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
 821
 822     new KMimeTypeResolver(view, m_dolphinModel);
 823     m_topLayout->insertWidget(1, view);
 824
 825     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
 826             this, SLOT(emitSelectionChangedSignal()));
 827     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
 828             this, SLOT(emitContentsMoved()));
 829     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
 830             this, SLOT(emitContentsMoved()));
 831     view->setFocus();
 832 }
 833
 834 QAbstractItemView* DolphinView::itemView() const
 835 {
 836     if (m_detailsView != 0) {
 837         return m_detailsView;
 838     } else if (m_columnView != 0) {
 839         return m_columnView;
 840     }
 841
 842     return m_iconsView;
 843 }
 844
 845 bool DolphinView::isValidNameIndex(const QModelIndex& index) const
 846 {
 847     return index.isValid() && (index.column() == DolphinModel::Name);
 848 }
 849
 850 bool DolphinView::isCutItem(const KFileItem& item) const
 851 {
 852     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 853     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
 854
 855     const KUrl& itemUrl = item.url();
 856     KUrl::List::const_iterator it = cutUrls.begin();
 857     const KUrl::List::const_iterator end = cutUrls.end();
 858     while (it != end) {
 859         if (*it == itemUrl) {
 860             return true;
 861         }
 862         ++it;
 863     }
 864
 865     return false;
 866 }
 867
 868 void DolphinView::applyCutItemEffect()
 869 {
 870     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 871     if (!KonqMimeData::decodeIsCutSelection(mimeData)) {
 872         return;
 873     }
 874
 875     KFileItemList items(m_dirLister->items());
 876     KFileItemList::const_iterator it = items.begin();
 877     const KFileItemList::const_iterator end = items.end();
 878     while (it != end) {
 879         KFileItem* item = *it;
 880         if (isCutItem(*item)) {
 881             const QModelIndex index = m_dolphinModel->indexForItem(*item);
 882             // Huh? the item is already known
 883             //const KFileItem item = m_dolphinModel->itemForIndex(index);
 884             const QVariant value = m_dolphinModel->data(index, Qt::DecorationRole);
 885             if (value.type() == QVariant::Icon) {
 886                 const QIcon icon(qvariant_cast<QIcon>(value));
 887                 QPixmap pixmap = icon.pixmap(128, 128);
 888
 889                 // remember current pixmap for the item to be able
 890                 // to restore it when other items get cut
 891                 CutItem cutItem;
 892                 cutItem.url = item->url();
 893                 cutItem.pixmap = pixmap;
 894                 m_cutItemsCache.append(cutItem);
 895
 896                 // apply icon effect to the cut item
 897                 KIconEffect iconEffect;
 898                 pixmap = iconEffect.apply(pixmap, K3Icon::Desktop, K3Icon::DisabledState);
 899                 m_dolphinModel->setData(index, QIcon(pixmap), Qt::DecorationRole);
 900             }
 901         }
 902         ++it;
 903     }
 904 }
 905
 906 void DolphinView::updateViewportColor()
 907 {
 908     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 909     if (m_active) {
 910         emit urlChanged(url()); // Hmm, this is a hack; the url hasn't really changed.
 911         emit selectionChanged(selectedItems());
 912     } else {
 913         color.setAlpha(0);
 914     }
 915
 916     QWidget* viewport = itemView()->viewport();
 917     QPalette palette;
 918     palette.setColor(viewport->backgroundRole(), color);
 919     viewport->setPalette(palette);
 920 }
 921
 922 #include "dolphinview.moc"