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 (categorized && !supportsCategorizedSorting()) {
 223         setCategorizedSorting(false);
 224         return;
 225     }
 226
 227     if (categorized == categorizedSorting()) {
 228         return;
 229     }
 230
 231     Q_ASSERT(m_iconsView != 0);
 232
 233     ViewProperties props(viewPropertiesUrl());
 234     props.setCategorizedSorting(categorized);
 235     props.save();
 236
 237     m_proxyModel->setCategorizedModel(categorized);
 238     m_proxyModel->sort(m_proxyModel->sortColumn(), m_proxyModel->sortOrder());
 239
 240     emit categorizedSortingChanged();
 241 }
 242
 243 bool DolphinView::categorizedSorting() const
 244 {
 245     return m_proxyModel->isCategorizedModel();
 246 }
 247
 248 bool DolphinView::supportsCategorizedSorting() const
 249 {
 250     return m_iconsView != 0;
 251 }
 252
 253 void DolphinView::selectAll()
 254 {
 255     itemView()->selectAll();
 256 }
 257
 258 void DolphinView::invertSelection()
 259 {
 260     if (isColumnViewActive()) {
 261         // QAbstractItemView does not offer a virtual method invertSelection()
 262         // as counterpart to QAbstractItemView::selectAll(). This makes it
 263         // necessary to delegate the inverting of the selection to the
 264         // column view, as only the selection of the active column should get
 265         // inverted.
 266         m_columnView->invertSelection();
 267     } else {
 268         QItemSelectionModel* selectionModel = itemView()->selectionModel();
 269         const QAbstractItemModel* itemModel = selectionModel->model();
 270
 271         const QModelIndex topLeft = itemModel->index(0, 0);
 272         const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 273                                                          itemModel->columnCount() - 1);
 274
 275         const QItemSelection selection(topLeft, bottomRight);
 276         selectionModel->select(selection, QItemSelectionModel::Toggle);
 277     }
 278 }
 279
 280 bool DolphinView::hasSelection() const
 281 {
 282     return itemView()->selectionModel()->hasSelection();
 283 }
 284
 285 void DolphinView::clearSelection()
 286 {
 287     itemView()->selectionModel()->clear();
 288 }
 289
 290 QList<KFileItem> DolphinView::selectedItems() const
 291 {
 292     const QAbstractItemView* view = itemView();
 293
 294     // Our view has a selection, we will map them back to the DolphinModel
 295     // and then fill the KFileItemList.
 296     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 297
 298     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 299     QList<KFileItem> itemList;
 300
 301     const QModelIndexList indexList = selection.indexes();
 302     foreach (QModelIndex index, indexList) {
 303         KFileItem item = m_dolphinModel->itemForIndex(index);
 304         if (!item.isNull()) {
 305             itemList.append(item);
 306         }
 307     }
 308
 309     return itemList;
 310 }
 311
 312 KUrl::List DolphinView::selectedUrls() const
 313 {
 314     KUrl::List urls;
 315     const QList<KFileItem> list = selectedItems();
 316     for ( QList<KFileItem>::const_iterator it = list.begin(), end = list.end();
 317           it != end; ++it ) {
 318         urls.append((*it).url());
 319     }
 320     return urls;
 321 }
 322
 323 KFileItem DolphinView::fileItem(const QModelIndex& index) const
 324 {
 325     const QModelIndex dolphinModelIndex = m_proxyModel->mapToSource(index);
 326     return m_dolphinModel->itemForIndex(dolphinModelIndex);
 327 }
 328
 329 void DolphinView::setContentsPosition(int x, int y)
 330 {
 331     QAbstractItemView* view = itemView();
 332
 333     // the ColumnView takes care itself for the horizontal scrolling
 334     if (!isColumnViewActive()) {
 335         view->horizontalScrollBar()->setValue(x);
 336     }
 337     view->verticalScrollBar()->setValue(y);
 338
 339     m_loadingDirectory = false;
 340 }
 341
 342 QPoint DolphinView::contentsPosition() const
 343 {
 344     const int x = itemView()->horizontalScrollBar()->value();
 345     const int y = itemView()->verticalScrollBar()->value();
 346     return QPoint(x, y);
 347 }
 348
 349 void DolphinView::zoomIn()
 350 {
 351     m_controller->triggerZoomIn();
 352 }
 353
 354 void DolphinView::zoomOut()
 355 {
 356     m_controller->triggerZoomOut();
 357 }
 358
 359 bool DolphinView::isZoomInPossible() const
 360 {
 361     return m_controller->isZoomInPossible();
 362 }
 363
 364 bool DolphinView::isZoomOutPossible() const
 365 {
 366     return m_controller->isZoomOutPossible();
 367 }
 368
 369 void DolphinView::setSorting(Sorting sorting)
 370 {
 371     if (sorting != this->sorting()) {
 372         updateSorting(sorting);
 373     }
 374 }
 375
 376 DolphinView::Sorting DolphinView::sorting() const
 377 {
 378     return m_proxyModel->sorting();
 379 }
 380
 381 void DolphinView::setSortOrder(Qt::SortOrder order)
 382 {
 383     if (sortOrder() != order) {
 384         updateSortOrder(order);
 385     }
 386 }
 387
 388 Qt::SortOrder DolphinView::sortOrder() const
 389 {
 390     return m_proxyModel->sortOrder();
 391 }
 392
 393 void DolphinView::setAdditionalInfo(KFileItemDelegate::AdditionalInformation info)
 394 {
 395     const KUrl viewPropsUrl = viewPropertiesUrl();
 396     ViewProperties props(viewPropsUrl);
 397     props.setAdditionalInfo(info);
 398
 399     m_controller->setShowAdditionalInfo(info != KFileItemDelegate::NoInformation);
 400     m_fileItemDelegate->setAdditionalInformation(info);
 401
 402     emit additionalInfoChanged(info);
 403     startDirLister(viewPropsUrl, true);
 404 }
 405
 406 KFileItemDelegate::AdditionalInformation DolphinView::additionalInfo() const
 407 {
 408     return m_fileItemDelegate->additionalInformation();
 409 }
 410
 411 void DolphinView::reload()
 412 {
 413     setUrl(url());
 414     startDirLister(url(), true);
 415 }
 416
 417 void DolphinView::refresh()
 418 {
 419     createView();
 420     applyViewProperties(m_controller->url());
 421     reload();
 422     updateViewportColor();
 423 }
 424
 425 void DolphinView::updateView(const KUrl& url, const KUrl& rootUrl)
 426 {
 427     if (m_controller->url() == url) {
 428         return;
 429     }
 430
 431     const bool restoreColumnView =  !rootUrl.isEmpty()
 432                                     && !rootUrl.equals(url, KUrl::CompareWithoutTrailingSlash)
 433                                     && rootUrl.isParentOf(url);
 434
 435     m_controller->setUrl(url); // emits urlChanged, which we forward
 436
 437     if (restoreColumnView) {
 438         applyViewProperties(rootUrl);
 439         Q_ASSERT(itemView() == m_columnView);
 440         startDirLister(rootUrl);
 441         m_columnView->showColumn(url);
 442     } else {
 443         applyViewProperties(url);
 444         startDirLister(url);
 445     }
 446
 447     itemView()->setFocus();
 448
 449     emit startedPathLoading(url);
 450 }
 451
 452 void DolphinView::setUrl(const KUrl& url)
 453 {
 454     updateView(url, KUrl());
 455 }
 456
 457 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 458 {
 459     QWidget::mouseReleaseEvent(event);
 460     setActive(true);
 461 }
 462 void DolphinView::activate()
 463 {
 464     setActive(true);
 465 }
 466
 467 void DolphinView::triggerItem(const QModelIndex& index)
 468 {
 469     Q_ASSERT(index.isValid());
 470
 471     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 472     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 473         // items are selected by the user, hence don't trigger the
 474         // item specified by 'index'
 475         return;
 476     }
 477
 478     const KFileItem item = m_dolphinModel->itemForIndex(m_proxyModel->mapToSource(index));
 479
 480     if (item.isNull()) {
 481         return;
 482     }
 483
 484     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 485 }
 486
 487 void DolphinView::generatePreviews(const QList<KFileItem>& items)
 488 {
 489     if (m_controller->showPreview()) {
 490         KIO::PreviewJob* job = KIO::filePreview(items, 128);
 491         connect(job, SIGNAL(gotPreview(const KFileItem&, const QPixmap&)),
 492                 this, SLOT(showPreview(const KFileItem&, const QPixmap&)));
 493     }
 494 }
 495
 496 void DolphinView::showPreview(const KFileItem& item, const QPixmap& pixmap)
 497 {
 498     Q_ASSERT(!item.isNull());
 499     if (item.url().directory() != m_dirLister->url().path()) {
 500         // the preview job is still working on items of an older URL, hence
 501         // the item is not part of the directory model anymore
 502         return;
 503     }
 504
 505     const QModelIndex idx = m_dolphinModel->indexForItem(item);
 506     if (idx.isValid() && (idx.column() == 0)) {
 507         const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 508         if (KonqMimeData::decodeIsCutSelection(mimeData) && isCutItem(item)) {
 509             KIconEffect iconEffect;
 510             const QPixmap cutPixmap = iconEffect.apply(pixmap, K3Icon::Desktop, K3Icon::DisabledState);
 511             m_dolphinModel->setData(idx, QIcon(cutPixmap), Qt::DecorationRole);
 512         } else {
 513             m_dolphinModel->setData(idx, QIcon(pixmap), Qt::DecorationRole);
 514         }
 515     }
 516 }
 517
 518 void DolphinView::emitSelectionChangedSignal()
 519 {
 520     emit selectionChanged(DolphinView::selectedItems());
 521 }
 522
 523 void DolphinView::startDirLister(const KUrl& url, bool reload)
 524 {
 525     if (!url.isValid()) {
 526         const QString location(url.pathOrUrl());
 527         if (location.isEmpty()) {
 528             emit errorMessage(i18nc("@info:status", "The location is empty."));
 529         } else {
 530             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
 531         }
 532         return;
 533     }
 534
 535     m_cutItemsCache.clear();
 536     m_loadingDirectory = true;
 537
 538     m_dirLister->stop();
 539
 540     bool keepOldDirs = isColumnViewActive() && !m_initializeColumnView;
 541     m_initializeColumnView = false;
 542
 543     if (keepOldDirs) {
 544         // keeping old directories is only necessary for hierarchical views
 545         // like the column view
 546         if (reload) {
 547             // for the column view it is not enough to reload the directory lister,
 548             // so this task is delegated to the column view directly
 549             m_columnView->reload();
 550         } else if (m_dirLister->directories().contains(url)) {
 551             // The dir lister contains the directory already, so
 552             // KDirLister::openUrl() may not get invoked twice.
 553             m_dirLister->updateDirectory(url);
 554         } else {
 555             const KUrl& dirListerUrl = m_dirLister->url();
 556             if ((dirListerUrl == url) || !m_dirLister->url().isParentOf(url)) {
 557                 // The current URL is not a child of the dir lister
 558                 // URL. This may happen when e. g. a place has been selected
 559                 // and hence the view must be reset.
 560                 m_dirLister->openUrl(url, false, false);
 561             }
 562         }
 563     } else {
 564         m_dirLister->openUrl(url, false, reload);
 565     }
 566 }
 567
 568 KUrl DolphinView::viewPropertiesUrl() const
 569 {
 570     if (isColumnViewActive()) {
 571         return m_dirLister->url();
 572     }
 573
 574     return url();
 575 }
 576
 577 void DolphinView::applyViewProperties(const KUrl& url)
 578 {
 579     if (isColumnViewActive() && m_dirLister->url().isParentOf(url)) {
 580         // The column view is active, hence don't apply the view properties
 581         // of sub directories (represented by columns) to the view. The
 582         // view always represents the properties of the first column.
 583         return;
 584     }
 585
 586     const ViewProperties props(url);
 587
 588     const Mode mode = props.viewMode();
 589     if (m_mode != mode) {
 590         m_mode = mode;
 591         createView();
 592         emit modeChanged();
 593
 594         if (m_mode == ColumnView) {
 595             // The mode has been changed to the Column View. When starting the dir
 596             // lister with DolphinView::startDirLister() it is important to give a
 597             // hint that the dir lister may not keep the current directory
 598             // although this is the default for showing a hierarchy.
 599             m_initializeColumnView = true;
 600         }
 601     }
 602     if (itemView() == 0) {
 603         createView();
 604     }
 605     Q_ASSERT(itemView() != 0);
 606     Q_ASSERT(m_fileItemDelegate != 0);
 607
 608     const bool showHiddenFiles = props.showHiddenFiles();
 609     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
 610         m_dirLister->setShowingDotFiles(showHiddenFiles);
 611         emit showHiddenFilesChanged();
 612     }
 613
 614     const bool categorized = props.categorizedSorting();
 615     if (categorized != categorizedSorting()) {
 616         m_proxyModel->setCategorizedModel(categorized);
 617         emit categorizedSortingChanged();
 618     }
 619
 620     const DolphinView::Sorting sorting = props.sorting();
 621     if (sorting != m_proxyModel->sorting()) {
 622         m_proxyModel->setSorting(sorting);
 623         emit sortingChanged(sorting);
 624     }
 625
 626     const Qt::SortOrder sortOrder = props.sortOrder();
 627     if (sortOrder != m_proxyModel->sortOrder()) {
 628         m_proxyModel->setSortOrder(sortOrder);
 629         emit sortOrderChanged(sortOrder);
 630     }
 631
 632     KFileItemDelegate::AdditionalInformation info = props.additionalInfo();
 633     if (info != m_fileItemDelegate->additionalInformation()) {
 634         m_controller->setShowAdditionalInfo(info != KFileItemDelegate::NoInformation);
 635         m_fileItemDelegate->setAdditionalInformation(info);
 636         emit additionalInfoChanged(info);
 637     }
 638
 639     const bool showPreview = props.showPreview();
 640     if (showPreview != m_controller->showPreview()) {
 641         m_controller->setShowPreview(showPreview);
 642         emit showPreviewChanged();
 643     }
 644 }
 645
 646 void DolphinView::changeSelection(const QList<KFileItem>& selection)
 647 {
 648     clearSelection();
 649     if (selection.isEmpty()) {
 650         return;
 651     }
 652     const KUrl& baseUrl = url();
 653     KUrl url;
 654     QItemSelection new_selection;
 655     foreach(const KFileItem& item, selection) {
 656         url = item.url().upUrl();
 657         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 658             QModelIndex index = m_proxyModel->mapFromSource(m_dolphinModel->indexForItem(item));
 659             new_selection.select(index, index);
 660         }
 661     }
 662     itemView()->selectionModel()->select(new_selection,
 663                                          QItemSelectionModel::ClearAndSelect
 664                                          | QItemSelectionModel::Current);
 665 }
 666
 667 void DolphinView::openContextMenu(const QPoint& pos)
 668 {
 669     KFileItem item;
 670
 671     const QModelIndex index = itemView()->indexAt(pos);
 672     if (isValidNameIndex(index)) {
 673         item = fileItem(index);
 674     }
 675
 676     emit requestContextMenu(item, url());
 677 }
 678
 679 void DolphinView::dropUrls(const KUrl::List& urls,
 680                            const KUrl& destPath,
 681                            const QModelIndex& destIndex,
 682                            QWidget* source)
 683 {
 684     KFileItem directory;
 685     if (isValidNameIndex(destIndex)) {
 686         KFileItem item = fileItem(destIndex);
 687         Q_ASSERT(!item.isNull());
 688         if (item.isDir()) {
 689             // the URLs are dropped above a directory
 690             directory = item;
 691         }
 692     }
 693
 694     if ((directory.isNull()) && (source == itemView())) {
 695         // The dropping is done into the same viewport where
 696         // the dragging has been started. Just ignore this...
 697         return;
 698     }
 699
 700     const KUrl& destination = (directory.isNull()) ?
 701                               destPath : directory.url();
 702     dropUrls(urls, destination);
 703 }
 704
 705 void DolphinView::dropUrls(const KUrl::List& urls,
 706                            const KUrl& destination)
 707 {
 708     emit urlsDropped(urls, destination);
 709 }
 710
 711 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 712 {
 713     ViewProperties props(viewPropertiesUrl());
 714     props.setSorting(sorting);
 715
 716     m_proxyModel->setSorting(sorting);
 717
 718     emit sortingChanged(sorting);
 719 }
 720
 721 void DolphinView::updateSortOrder(Qt::SortOrder order)
 722 {
 723     ViewProperties props(viewPropertiesUrl());
 724     props.setSortOrder(order);
 725
 726     m_proxyModel->setSortOrder(order);
 727
 728     emit sortOrderChanged(order);
 729 }
 730
 731 void DolphinView::emitContentsMoved()
 732 {
 733     // only emit the contents moved signal if:
 734     // - no directory loading is ongoing (this would reset the contents position
 735     //   always to (0, 0))
 736     // - if the Column View is active: the column view does an automatic
 737     //   positioning during the loading operation, which must be remembered
 738     if (!m_loadingDirectory || isColumnViewActive()) {
 739         const QPoint pos(contentsPosition());
 740         emit contentsMoved(pos.x(), pos.y());
 741     }
 742 }
 743
 744 void DolphinView::updateCutItems()
 745 {
 746     // restore the icons of all previously selected items to the
 747     // original state...
 748     QList<CutItem>::const_iterator it = m_cutItemsCache.begin();
 749     QList<CutItem>::const_iterator end = m_cutItemsCache.end();
 750     while (it != end) {
 751         const QModelIndex index = m_dolphinModel->indexForUrl((*it).url);
 752         if (index.isValid()) {
 753             m_dolphinModel->setData(index, QIcon((*it).pixmap), Qt::DecorationRole);
 754         }
 755         ++it;
 756     }
 757     m_cutItemsCache.clear();
 758
 759     // ... and apply an item effect to all currently cut items
 760     applyCutItemEffect();
 761 }
 762
 763 void DolphinView::showHoverInformation(const QModelIndex& index)
 764 {
 765     if (hasSelection()) {
 766         return;
 767     }
 768
 769     const KFileItem item = fileItem(index);
 770     if (!item.isNull()) {
 771         emit requestItemInfo(item);
 772     }
 773 }
 774
 775 void DolphinView::clearHoverInformation()
 776 {
 777     emit requestItemInfo(KFileItem());
 778 }
 779
 780
 781 void DolphinView::createView()
 782 {
 783     // delete current view
 784     QAbstractItemView* view = itemView();
 785     if (view != 0) {
 786         m_topLayout->removeWidget(view);
 787         view->close();
 788         view->deleteLater();
 789         view = 0;
 790         m_iconsView = 0;
 791         m_detailsView = 0;
 792         m_columnView = 0;
 793         m_fileItemDelegate = 0;
 794     }
 795
 796     Q_ASSERT(m_iconsView == 0);
 797     Q_ASSERT(m_detailsView == 0);
 798     Q_ASSERT(m_columnView == 0);
 799
 800     // ... and recreate it representing the current mode
 801     switch (m_mode) {
 802     case IconsView:
 803         m_iconsView = new DolphinIconsView(this, m_controller);
 804         m_iconsView->setCategoryDrawer(new DolphinCategoryDrawer());
 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_dolphinModel);
 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() == DolphinModel::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_dolphinModel->indexForItem(*item);
 887             // Huh? the item is already known
 888             //const KFileItem item = m_dolphinModel->itemForIndex(index);
 889             const QVariant value = m_dolphinModel->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_dolphinModel->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"