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 <kdirmodel.h>
  33 #include <kdirlister.h>
  34 #include <kfileitemdelegate.h>
  35 #include <klocale.h>
  36 #include <kiconeffect.h>
  37 #include <kio/netaccess.h>
  38 #include <kio/renamedialog.h>
  39 #include <kio/previewjob.h>
  40 #include <kmimetyperesolver.h>
  41 #include <konqmimedata.h>
  42 #include <konq_operations.h>
  43 #include <kurl.h>
  44
  45 #include "dolphincolumnview.h"
  46 #include "dolphincontroller.h"
  47 #include "dolphinsortfilterproxymodel.h"
  48 #include "dolphindetailsview.h"
  49 #include "dolphiniconsview.h"
  50 #include "dolphinitemcategorizer.h"
  51 #include "renamedialog.h"
  52 #include "viewproperties.h"
  53 #include "dolphinsettings.h"
  54 #include "dolphin_generalsettings.h"
  55
  56 DolphinView::DolphinView(QWidget* parent,
  57                          const KUrl& url,
  58                          KDirLister* dirLister,
  59                          KDirModel* dirModel,
  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_dirModel(dirModel),
  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 QModelIndex&, QWidget*)),
  97             this, SLOT(dropUrls(const KUrl::List&, 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     if (categorized) {
 228         Q_ASSERT(m_iconsView->itemCategorizer() == 0);
 229         m_iconsView->setItemCategorizer(new DolphinItemCategorizer());
 230     } else {
 231         KItemCategorizer* categorizer = m_iconsView->itemCategorizer();
 232         m_iconsView->setItemCategorizer(0);
 233         delete categorizer;
 234     }
 235
 236     ViewProperties props(viewPropertiesUrl());
 237     props.setCategorizedSorting(categorized);
 238     props.save();
 239
 240     emit categorizedSortingChanged();
 241 }
 242
 243 bool DolphinView::categorizedSorting() const
 244 {
 245     if (!supportsCategorizedSorting()) {
 246         return false;
 247     }
 248
 249     Q_ASSERT(m_iconsView != 0);
 250     return m_iconsView->itemCategorizer() != 0;
 251 }
 252
 253 bool DolphinView::supportsCategorizedSorting() const
 254 {
 255     return m_iconsView != 0;
 256 }
 257
 258 void DolphinView::selectAll()
 259 {
 260     itemView()->selectAll();
 261 }
 262
 263 void DolphinView::invertSelection()
 264 {
 265     QItemSelectionModel* selectionModel = itemView()->selectionModel();
 266     const QAbstractItemModel* itemModel = selectionModel->model();
 267
 268     const QModelIndex topLeft = itemModel->index(0, 0);
 269     const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 270                                                      itemModel->columnCount() - 1);
 271
 272     QItemSelection selection(topLeft, bottomRight);
 273     selectionModel->select(selection, QItemSelectionModel::Toggle);
 274 }
 275
 276 bool DolphinView::hasSelection() const
 277 {
 278     return itemView()->selectionModel()->hasSelection();
 279 }
 280
 281 void DolphinView::clearSelection()
 282 {
 283     itemView()->selectionModel()->clear();
 284 }
 285
 286 QList<KFileItem> DolphinView::selectedItems() const
 287 {
 288     const QAbstractItemView* view = itemView();
 289
 290     // Our view has a selection, we will map them back to the DirModel
 291     // and then fill the KFileItemList.
 292     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 293
 294     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 295     QList<KFileItem> itemList;
 296
 297     const QModelIndexList indexList = selection.indexes();
 298     foreach (QModelIndex index, indexList) {
 299         KFileItem item = m_dirModel->itemForIndex(index);
 300         if (!item.isNull()) {
 301             itemList.append(item);
 302         }
 303     }
 304
 305     return itemList;
 306 }
 307
 308 KUrl::List DolphinView::selectedUrls() const
 309 {
 310     KUrl::List urls;
 311     const QList<KFileItem> list = selectedItems();
 312     for ( QList<KFileItem>::const_iterator it = list.begin(), end = list.end();
 313           it != end; ++it ) {
 314         urls.append((*it).url());
 315     }
 316     return urls;
 317 }
 318
 319 KFileItem DolphinView::fileItem(const QModelIndex& index) const
 320 {
 321     const QModelIndex dirModelIndex = m_proxyModel->mapToSource(index);
 322     return m_dirModel->itemForIndex(dirModelIndex);
 323 }
 324
 325 void DolphinView::setContentsPosition(int x, int y)
 326 {
 327     QAbstractItemView* view = itemView();
 328
 329     // the ColumnView takes care itself for the horizontal scrolling
 330     if (!isColumnViewActive()) {
 331         view->horizontalScrollBar()->setValue(x);
 332     }
 333     view->verticalScrollBar()->setValue(y);
 334
 335     m_loadingDirectory = false;
 336 }
 337
 338 QPoint DolphinView::contentsPosition() const
 339 {
 340     const int x = itemView()->horizontalScrollBar()->value();
 341     const int y = itemView()->verticalScrollBar()->value();
 342     return QPoint(x, y);
 343 }
 344
 345 void DolphinView::zoomIn()
 346 {
 347     m_controller->triggerZoomIn();
 348 }
 349
 350 void DolphinView::zoomOut()
 351 {
 352     m_controller->triggerZoomOut();
 353 }
 354
 355 bool DolphinView::isZoomInPossible() const
 356 {
 357     return m_controller->isZoomInPossible();
 358 }
 359
 360 bool DolphinView::isZoomOutPossible() const
 361 {
 362     return m_controller->isZoomOutPossible();
 363 }
 364
 365 void DolphinView::setSorting(Sorting sorting)
 366 {
 367     if (sorting != this->sorting()) {
 368         updateSorting(sorting);
 369     }
 370 }
 371
 372 DolphinView::Sorting DolphinView::sorting() const
 373 {
 374     return m_proxyModel->sorting();
 375 }
 376
 377 void DolphinView::setSortOrder(Qt::SortOrder order)
 378 {
 379     if (sortOrder() != order) {
 380         updateSortOrder(order);
 381     }
 382 }
 383
 384 Qt::SortOrder DolphinView::sortOrder() const
 385 {
 386     return m_proxyModel->sortOrder();
 387 }
 388
 389 void DolphinView::setAdditionalInfo(KFileItemDelegate::AdditionalInformation info)
 390 {
 391     const KUrl viewPropsUrl = viewPropertiesUrl();
 392     ViewProperties props(viewPropsUrl);
 393     props.setAdditionalInfo(info);
 394
 395     m_controller->setShowAdditionalInfo(info != KFileItemDelegate::NoInformation);
 396     m_fileItemDelegate->setAdditionalInformation(info);
 397
 398     emit additionalInfoChanged(info);
 399     startDirLister(viewPropsUrl, true);
 400 }
 401
 402 KFileItemDelegate::AdditionalInformation DolphinView::additionalInfo() const
 403 {
 404     return m_fileItemDelegate->additionalInformation();
 405 }
 406
 407 void DolphinView::reload()
 408 {
 409     setUrl(url());
 410     startDirLister(url(), true);
 411 }
 412
 413 void DolphinView::refresh()
 414 {
 415     createView();
 416     applyViewProperties(m_controller->url());
 417     reload();
 418     updateViewportColor();
 419 }
 420
 421 void DolphinView::setUrl(const KUrl& url)
 422 {
 423     if (m_controller->url() == url) {
 424         return;
 425     }
 426
 427     m_controller->setUrl(url); // emits urlChanged, which we forward
 428
 429     applyViewProperties(url);
 430
 431     startDirLister(url);
 432     itemView()->setFocus();
 433 }
 434
 435 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 436 {
 437     QWidget::mouseReleaseEvent(event);
 438     setActive(true);;
 439 }
 440 void DolphinView::activate()
 441 {
 442     setActive(true);
 443 }
 444
 445 void DolphinView::triggerItem(const QModelIndex& index)
 446 {
 447     Q_ASSERT(index.isValid());
 448
 449     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 450     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 451         // items are selected by the user, hence don't trigger the
 452         // item specified by 'index'
 453         return;
 454     }
 455
 456     const KFileItem item = m_dirModel->itemForIndex(m_proxyModel->mapToSource(index));
 457     if (item.isNull()) {
 458         return;
 459     }
 460
 461     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 462 }
 463
 464 void DolphinView::generatePreviews(const QList<KFileItem>& items)
 465 {
 466     if (m_controller->showPreview()) {
 467         KIO::PreviewJob* job = KIO::filePreview(items, 128);
 468         connect(job, SIGNAL(gotPreview(const KFileItem&, const QPixmap&)),
 469                 this, SLOT(showPreview(const KFileItem&, const QPixmap&)));
 470     }
 471 }
 472
 473 void DolphinView::showPreview(const KFileItem& item, const QPixmap& pixmap)
 474 {
 475     Q_ASSERT(!item.isNull());
 476     if (item.url().directory() != m_dirLister->url().path()) {
 477         // the preview job is still working on items of an older URL, hence
 478         // the item is not part of the directory model anymore
 479         return;
 480     }
 481
 482     const QModelIndex idx = m_dirModel->indexForItem(item);
 483     if (idx.isValid() && (idx.column() == 0)) {
 484         const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 485         if (KonqMimeData::decodeIsCutSelection(mimeData) && isCutItem(item)) {
 486             KIconEffect iconEffect;
 487             const QPixmap cutPixmap = iconEffect.apply(pixmap, K3Icon::Desktop, K3Icon::DisabledState);
 488             m_dirModel->setData(idx, QIcon(cutPixmap), Qt::DecorationRole);
 489         } else {
 490             m_dirModel->setData(idx, QIcon(pixmap), Qt::DecorationRole);
 491         }
 492     }
 493 }
 494
 495 void DolphinView::emitSelectionChangedSignal()
 496 {
 497     emit selectionChanged(DolphinView::selectedItems());
 498 }
 499
 500 void DolphinView::startDirLister(const KUrl& url, bool reload)
 501 {
 502     if (!url.isValid()) {
 503         const QString location(url.pathOrUrl());
 504         if (location.isEmpty()) {
 505             emit errorMessage(i18nc("@info:status", "The location is empty."));
 506         } else {
 507             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
 508         }
 509         return;
 510     }
 511
 512     m_cutItemsCache.clear();
 513     m_loadingDirectory = true;
 514
 515     m_dirLister->stop();
 516
 517     bool openDir = true;
 518     bool keepOldDirs = isColumnViewActive() && !m_initializeColumnView;
 519     m_initializeColumnView = false;
 520
 521     if (keepOldDirs) {
 522         if (reload) {
 523             keepOldDirs = false;
 524
 525             const KUrl& dirListerUrl = m_dirLister->url();
 526             if (dirListerUrl.isValid()) {
 527                 const KUrl::List dirs = m_dirLister->directories();
 528                 KUrl url;
 529                 foreach(url, dirs) {
 530                     m_dirLister->updateDirectory(url);
 531                 }
 532                 openDir = false;
 533             }
 534         } else if (m_dirLister->directories().contains(url)) {
 535             // The dir lister contains the directory already, so
 536             // KDirLister::openUrl() may not been invoked twice.
 537             m_dirLister->updateDirectory(url);
 538             openDir = false;
 539         } else {
 540             const KUrl& dirListerUrl = m_dirLister->url();
 541             if ((dirListerUrl == url) || !m_dirLister->url().isParentOf(url)) {
 542                 // The current URL is not a child of the dir lister
 543                 // URL. This may happen when e. g. a place has been selected
 544                 // and hence the view must be reset.
 545                 keepOldDirs = false;
 546             }
 547         }
 548     }
 549
 550     if (openDir) {
 551         m_dirLister->openUrl(url, keepOldDirs, reload);
 552     }
 553 }
 554
 555 KUrl DolphinView::viewPropertiesUrl() const
 556 {
 557     if (isColumnViewActive()) {
 558         return m_dirLister->url();
 559     }
 560
 561     return url();
 562 }
 563
 564 void DolphinView::applyViewProperties(const KUrl& url)
 565 {
 566     if (isColumnViewActive() && m_dirLister->url().isParentOf(url)) {
 567         // The column view is active, hence don't apply the view properties
 568         // of sub directories (represented by columns) to the view. The
 569         // view always represents the properties of the first column.
 570         return;
 571     }
 572
 573     const ViewProperties props(url);
 574
 575     const Mode mode = props.viewMode();
 576     if (m_mode != mode) {
 577         m_mode = mode;
 578         createView();
 579         emit modeChanged();
 580
 581         if (m_mode == ColumnView) {
 582             // The mode has been changed to the Column View. When starting the dir
 583             // lister with DolphinView::startDirLister() it is important to give a
 584             // hint that the dir lister may not keep the current directory
 585             // although this is the default for showing a hierarchy.
 586             m_initializeColumnView = true;
 587         }
 588     }
 589     if (itemView() == 0) {
 590         createView();
 591     }
 592     Q_ASSERT(itemView() != 0);
 593     Q_ASSERT(m_fileItemDelegate != 0);
 594
 595     const bool showHiddenFiles = props.showHiddenFiles();
 596     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
 597         m_dirLister->setShowingDotFiles(showHiddenFiles);
 598         emit showHiddenFilesChanged();
 599     }
 600
 601     const bool categorized = props.categorizedSorting();
 602     if (categorized != categorizedSorting()) {
 603         if (supportsCategorizedSorting()) {
 604             Q_ASSERT(m_iconsView != 0);
 605             if (categorized) {
 606                 Q_ASSERT(m_iconsView->itemCategorizer() == 0);
 607                 m_iconsView->setItemCategorizer(new DolphinItemCategorizer());
 608             } else {
 609                 KItemCategorizer* categorizer = m_iconsView->itemCategorizer();
 610                 m_iconsView->setItemCategorizer(0);
 611                 delete categorizer;
 612             }
 613         }
 614         emit categorizedSortingChanged();
 615     }
 616
 617     const DolphinView::Sorting sorting = props.sorting();
 618     if (sorting != m_proxyModel->sorting()) {
 619         m_proxyModel->setSorting(sorting);
 620         emit sortingChanged(sorting);
 621     }
 622
 623     const Qt::SortOrder sortOrder = props.sortOrder();
 624     if (sortOrder != m_proxyModel->sortOrder()) {
 625         m_proxyModel->setSortOrder(sortOrder);
 626         emit sortOrderChanged(sortOrder);
 627     }
 628
 629     KFileItemDelegate::AdditionalInformation info = props.additionalInfo();
 630     if (info != m_fileItemDelegate->additionalInformation()) {
 631         m_controller->setShowAdditionalInfo(info != KFileItemDelegate::NoInformation);
 632         m_fileItemDelegate->setAdditionalInformation(info);
 633         emit additionalInfoChanged(info);
 634     }
 635
 636     const bool showPreview = props.showPreview();
 637     if (showPreview != m_controller->showPreview()) {
 638         m_controller->setShowPreview(showPreview);
 639         emit showPreviewChanged();
 640     }
 641 }
 642
 643 void DolphinView::changeSelection(const QList<KFileItem>& selection)
 644 {
 645     clearSelection();
 646     if (selection.isEmpty()) {
 647         return;
 648     }
 649     const KUrl& baseUrl = url();
 650     KUrl url;
 651     QItemSelection new_selection;
 652     foreach(const KFileItem& item, selection) {
 653         url = item.url().upUrl();
 654         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 655             QModelIndex index = m_proxyModel->mapFromSource(m_dirModel->indexForItem(item));
 656             new_selection.select(index, index);
 657         }
 658     }
 659     itemView()->selectionModel()->select(new_selection,
 660                                          QItemSelectionModel::ClearAndSelect
 661                                          | QItemSelectionModel::Current);
 662 }
 663
 664 void DolphinView::openContextMenu(const QPoint& pos)
 665 {
 666     KFileItem item;
 667
 668     const QModelIndex index = itemView()->indexAt(pos);
 669     if (isValidNameIndex(index)) {
 670         item = fileItem(index);
 671     }
 672
 673     emit requestContextMenu(item, url());
 674 }
 675
 676 void DolphinView::dropUrls(const KUrl::List& urls,
 677                            const QModelIndex& index,
 678                            QWidget* source)
 679 {
 680     KFileItem directory;
 681     if (isValidNameIndex(index)) {
 682         KFileItem item = fileItem(index);
 683         Q_ASSERT(!item.isNull());
 684         if (item.isDir()) {
 685             // the URLs are dropped above a directory
 686             directory = item;
 687         }
 688     }
 689
 690     if ((directory.isNull()) && (source == itemView())) {
 691         // The dropping is done into the same viewport where
 692         // the dragging has been started. Just ignore this...
 693         return;
 694     }
 695
 696     const KUrl& destination = (directory.isNull()) ?
 697                               url() : directory.url();
 698     dropUrls(urls, destination);
 699 }
 700
 701 void DolphinView::dropUrls(const KUrl::List& urls,
 702                            const KUrl& destination)
 703 {
 704     emit urlsDropped(urls, destination);
 705 }
 706
 707 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 708 {
 709     ViewProperties props(viewPropertiesUrl());
 710     props.setSorting(sorting);
 711
 712     m_proxyModel->setSorting(sorting);
 713
 714     emit sortingChanged(sorting);
 715 }
 716
 717 void DolphinView::updateSortOrder(Qt::SortOrder order)
 718 {
 719     ViewProperties props(viewPropertiesUrl());
 720     props.setSortOrder(order);
 721
 722     m_proxyModel->setSortOrder(order);
 723
 724     emit sortOrderChanged(order);
 725 }
 726
 727 void DolphinView::emitContentsMoved()
 728 {
 729     // only emit the contents moved signal if:
 730     // - no directory loading is ongoing (this would reset the contents position
 731     //   always to (0, 0))
 732     // - if the Column View is active: the column view does an automatic
 733     //   positioning during the loading operation, which must be remembered
 734     if (!m_loadingDirectory || isColumnViewActive()) {
 735         const QPoint pos(contentsPosition());
 736         emit contentsMoved(pos.x(), pos.y());
 737     }
 738 }
 739
 740 void DolphinView::updateCutItems()
 741 {
 742     // restore the icons of all previously selected items to the
 743     // original state...
 744     QList<CutItem>::const_iterator it = m_cutItemsCache.begin();
 745     QList<CutItem>::const_iterator end = m_cutItemsCache.end();
 746     while (it != end) {
 747         const QModelIndex index = m_dirModel->indexForUrl((*it).url);
 748         if (index.isValid()) {
 749             m_dirModel->setData(index, QIcon((*it).pixmap), Qt::DecorationRole);
 750         }
 751         ++it;
 752     }
 753     m_cutItemsCache.clear();
 754
 755     // ... and apply an item effect to all currently cut items
 756     applyCutItemEffect();
 757 }
 758
 759 void DolphinView::showHoverInformation(const QModelIndex& index)
 760 {
 761     if (hasSelection()) {
 762         return;
 763     }
 764
 765     const KFileItem item = fileItem(index);
 766     if (!item.isNull()) {
 767         emit requestItemInfo(item);
 768     }
 769 }
 770
 771 void DolphinView::clearHoverInformation()
 772 {
 773     emit requestItemInfo(KFileItem());
 774 }
 775
 776
 777 void DolphinView::createView()
 778 {
 779     // delete current view
 780     QAbstractItemView* view = itemView();
 781     if (view != 0) {
 782         m_topLayout->removeWidget(view);
 783         view->close();
 784         if (view == m_iconsView) {
 785             KItemCategorizer* categorizer = m_iconsView->itemCategorizer();
 786             m_iconsView->setItemCategorizer(0);
 787             delete categorizer;
 788         }
 789         view->deleteLater();
 790         view = 0;
 791         m_iconsView = 0;
 792         m_detailsView = 0;
 793         m_columnView = 0;
 794         m_fileItemDelegate = 0;
 795     }
 796
 797     Q_ASSERT(m_iconsView == 0);
 798     Q_ASSERT(m_detailsView == 0);
 799     Q_ASSERT(m_columnView == 0);
 800
 801     // ... and recreate it representing the current mode
 802     switch (m_mode) {
 803     case IconsView:
 804         m_iconsView = new DolphinIconsView(this, m_controller);
 805         view = m_iconsView;
 806         break;
 807
 808     case DetailsView:
 809         m_detailsView = new DolphinDetailsView(this, m_controller);
 810         view = m_detailsView;
 811         break;
 812
 813     case ColumnView:
 814         m_columnView = new DolphinColumnView(this, m_controller);
 815         view = m_columnView;
 816         break;
 817     }
 818
 819     Q_ASSERT(view != 0);
 820
 821     m_fileItemDelegate = new KFileItemDelegate(view);
 822     view->setItemDelegate(m_fileItemDelegate);
 823
 824     view->setModel(m_proxyModel);
 825     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
 826
 827     new KMimeTypeResolver(view, m_dirModel);
 828     m_topLayout->insertWidget(1, view);
 829
 830     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
 831             this, SLOT(emitSelectionChangedSignal()));
 832     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
 833             this, SLOT(emitContentsMoved()));
 834     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
 835             this, SLOT(emitContentsMoved()));
 836     view->setFocus();
 837 }
 838
 839 QAbstractItemView* DolphinView::itemView() const
 840 {
 841     if (m_detailsView != 0) {
 842         return m_detailsView;
 843     } else if (m_columnView != 0) {
 844         return m_columnView;
 845     }
 846
 847     return m_iconsView;
 848 }
 849
 850 bool DolphinView::isValidNameIndex(const QModelIndex& index) const
 851 {
 852     return index.isValid() && (index.column() == KDirModel::Name);
 853 }
 854
 855 bool DolphinView::isCutItem(const KFileItem& item) const
 856 {
 857     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 858     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
 859
 860     const KUrl& itemUrl = item.url();
 861     KUrl::List::const_iterator it = cutUrls.begin();
 862     const KUrl::List::const_iterator end = cutUrls.end();
 863     while (it != end) {
 864         if (*it == itemUrl) {
 865             return true;
 866         }
 867         ++it;
 868     }
 869
 870     return false;
 871 }
 872
 873 void DolphinView::applyCutItemEffect()
 874 {
 875     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 876     if (!KonqMimeData::decodeIsCutSelection(mimeData)) {
 877         return;
 878     }
 879
 880     KFileItemList items(m_dirLister->items());
 881     KFileItemList::const_iterator it = items.begin();
 882     const KFileItemList::const_iterator end = items.end();
 883     while (it != end) {
 884         KFileItem* item = *it;
 885         if (isCutItem(*item)) {
 886             const QModelIndex index = m_dirModel->indexForItem(*item);
 887             // Huh? the item is already known
 888             //const KFileItem item = m_dirModel->itemForIndex(index);
 889             const QVariant value = m_dirModel->data(index, Qt::DecorationRole);
 890             if (value.type() == QVariant::Icon) {
 891                 const QIcon icon(qvariant_cast<QIcon>(value));
 892                 QPixmap pixmap = icon.pixmap(128, 128);
 893
 894                 // remember current pixmap for the item to be able
 895                 // to restore it when other items get cut
 896                 CutItem cutItem;
 897                 cutItem.url = item->url();
 898                 cutItem.pixmap = pixmap;
 899                 m_cutItemsCache.append(cutItem);
 900
 901                 // apply icon effect to the cut item
 902                 KIconEffect iconEffect;
 903                 pixmap = iconEffect.apply(pixmap, K3Icon::Desktop, K3Icon::DisabledState);
 904                 m_dirModel->setData(index, QIcon(pixmap), Qt::DecorationRole);
 905             }
 906         }
 907         ++it;
 908     }
 909 }
 910
 911 void DolphinView::updateViewportColor()
 912 {
 913     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 914     if (m_active) {
 915         emit urlChanged(url()); // Hmm, this is a hack; the url hasn't really changed.
 916         emit selectionChanged(selectedItems());
 917     } else {
 918         color.setAlpha(0);
 919     }
 920
 921     QWidget* viewport = itemView()->viewport();
 922     QPalette palette;
 923     palette.setColor(viewport->backgroundRole(), color);
 924     viewport->setPalette(palette);
 925 }
 926
 927 #include "dolphinview.moc"