src/dolphinview.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006 by Peter Penz <peter.penz@gmx.at>                  *
   3  *   Copyright (C) 2006 by Gregor Kališnik <gregor@podnapisi.net>          *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  19  ***************************************************************************/
  20
  21 #include "dolphinview.h"
  22 #include <ktoggleaction.h>
  23 #include <kactioncollection.h>
  24
  25 #include <QApplication>
  26 #include <QClipboard>
  27 #include <QKeyEvent>
  28 #include <QItemSelection>
  29 #include <QBoxLayout>
  30 #include <QTimer>
  31 #include <QScrollBar>
  32
  33 #include <kcolorscheme.h>
  34 #include <kdirlister.h>
  35 #include <kfileitemdelegate.h>
  36 #include <klocale.h>
  37 #include <kiconeffect.h>
  38 #include <kio/netaccess.h>
  39 #include <kio/renamedialog.h>
  40 #include <kio/previewjob.h>
  41 #include <kmimetyperesolver.h>
  42 #include <konqmimedata.h>
  43 #include <konq_operations.h>
  44 #include <kurl.h>
  45
  46 #include "dolphinmodel.h"
  47 #include "dolphincolumnview.h"
  48 #include "dolphincontroller.h"
  49 #include "dolphinsortfilterproxymodel.h"
  50 #include "dolphindetailsview.h"
  51 #include "dolphiniconsview.h"
  52 #include "renamedialog.h"
  53 #include "viewproperties.h"
  54 #include "dolphinsettings.h"
  55 #include "dolphin_generalsettings.h"
  56
  57 DolphinView::DolphinView(QWidget* parent,
  58                          const KUrl& url,
  59                          KDirLister* dirLister,
  60                          DolphinModel* dolphinModel,
  61                          DolphinSortFilterProxyModel* proxyModel) :
  62     QWidget(parent),
  63     m_active(true),
  64     m_showPreview(false),
  65     m_loadingDirectory(false),
  66     m_storedCategorizedSorting(false),
  67     m_mode(DolphinView::IconsView),
  68     m_topLayout(0),
  69     m_controller(0),
  70     m_iconsView(0),
  71     m_detailsView(0),
  72     m_columnView(0),
  73     m_fileItemDelegate(0),
  74     m_dolphinModel(dolphinModel),
  75     m_dirLister(dirLister),
  76     m_proxyModel(proxyModel)
  77 {
  78     setFocusPolicy(Qt::StrongFocus);
  79     m_topLayout = new QVBoxLayout(this);
  80     m_topLayout->setSpacing(0);
  81     m_topLayout->setMargin(0);
  82
  83     QClipboard* clipboard = QApplication::clipboard();
  84     connect(clipboard, SIGNAL(dataChanged()),
  85             this, SLOT(updateCutItems()));
  86
  87     connect(m_dirLister, SIGNAL(completed()),
  88             this, SLOT(updateCutItems()));
  89     connect(m_dirLister, SIGNAL(newItems(const KFileItemList&)),
  90             this, SLOT(generatePreviews(const KFileItemList&)));
  91
  92     m_controller = new DolphinController(this);
  93     m_controller->setUrl(url);
  94
  95     // Receiver of the DolphinView signal 'urlChanged()' don't need
  96     // to care whether the internal controller changed the URL already or whether
  97     // the controller just requested an URL change and will be updated later.
  98     // In both cases the URL has been changed:
  99     connect(m_controller, SIGNAL(urlChanged(const KUrl&)),
 100             this, SIGNAL(urlChanged(const KUrl&)));
 101     connect(m_controller, SIGNAL(requestUrlChange(const KUrl&)),
 102             this, SIGNAL(urlChanged(const KUrl&)));
 103
 104     connect(m_controller, SIGNAL(requestContextMenu(const QPoint&)),
 105             this, SLOT(openContextMenu(const QPoint&)));
 106     connect(m_controller, SIGNAL(urlsDropped(const KUrl::List&, const KUrl&, const KFileItem&)),
 107             this, SLOT(dropUrls(const KUrl::List&, const KUrl&, const KFileItem&)));
 108     connect(m_controller, SIGNAL(sortingChanged(DolphinView::Sorting)),
 109             this, SLOT(updateSorting(DolphinView::Sorting)));
 110     connect(m_controller, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 111             this, SLOT(updateSortOrder(Qt::SortOrder)));
 112     connect(m_controller, SIGNAL(additionalInfoChanged(const KFileItemDelegate::InformationList&)),
 113             this, SLOT(updateAdditionalInfo(const KFileItemDelegate::InformationList&)));
 114     connect(m_controller, SIGNAL(itemTriggered(const KFileItem&)),
 115             this, SLOT(triggerItem(const KFileItem&)));
 116     connect(m_controller, SIGNAL(activated()),
 117             this, SLOT(activate()));
 118     connect(m_controller, SIGNAL(itemEntered(const KFileItem&)),
 119             this, SLOT(showHoverInformation(const KFileItem&)));
 120     connect(m_controller, SIGNAL(viewportEntered()),
 121             this, SLOT(clearHoverInformation()));
 122
 123     applyViewProperties(url);
 124     m_topLayout->addWidget(itemView());
 125 }
 126
 127 DolphinView::~DolphinView()
 128 {
 129 }
 130
 131 const KUrl& DolphinView::url() const
 132 {
 133     return m_controller->url();
 134 }
 135
 136 KUrl DolphinView::rootUrl() const
 137 {
 138     return isColumnViewActive() ? m_columnView->rootUrl() : url();
 139 }
 140
 141 void DolphinView::setActive(bool active)
 142 {
 143     if (active == m_active) {
 144         return;
 145     }
 146
 147     m_active = active;
 148
 149     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 150     if (active) {
 151         // TODO: emitting urlChanged() is a hack, as the URL hasn't really changed. It
 152         // bypasses the problem when having a split view and changing the active view to
 153         // update the some URL dependent states. A nicer approach should be no big deal...
 154         emit urlChanged(url());
 155         emit selectionChanged(selectedItems());
 156     } else {
 157         color.setAlpha(150);
 158     }
 159
 160     QWidget* viewport = itemView()->viewport();
 161     QPalette palette;
 162     palette.setColor(viewport->backgroundRole(), color);
 163     viewport->setPalette(palette);
 164
 165     update();
 166
 167     if (active) {
 168         emit activated();
 169     }
 170
 171     m_controller->indicateActivationChange(active);
 172 }
 173
 174 bool DolphinView::isActive() const
 175 {
 176     return m_active;
 177 }
 178
 179 void DolphinView::setMode(Mode mode)
 180 {
 181     if (mode == m_mode) {
 182         return; // the wished mode is already set
 183     }
 184
 185     m_mode = mode;
 186
 187     if (isColumnViewActive()) {
 188         // When changing the mode in the column view, it makes sense
 189         // to go back to the root URL of the column view automatically.
 190         // Otherwise there it would not be possible to turn off the column view
 191         // without focusing the first column.
 192         const KUrl root = rootUrl();
 193         setUrl(root);
 194         m_controller->setUrl(root);
 195     }
 196
 197     deleteView();
 198
 199     // It is important to read the view properties _after_ deleting the view,
 200     // as e. g. the detail view might adjust the additional information properties
 201     // after getting closed:
 202     const KUrl viewPropsUrl = viewPropertiesUrl();
 203     ViewProperties props(viewPropsUrl);
 204     props.setViewMode(m_mode);
 205
 206     createView();
 207
 208     // the file item delegate has been recreated, apply the current
 209     // additional information manually
 210     const KFileItemDelegate::InformationList infoList = props.additionalInfo();
 211     m_fileItemDelegate->setShowInformation(infoList);
 212     emit additionalInfoChanged(infoList);
 213
 214     // Not all view modes support categorized sorting. Adjust the sorting model
 215     // if changing the view mode results in a change of the categorized sorting
 216     // capabilities.
 217     m_storedCategorizedSorting = props.categorizedSorting();
 218     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 219     if (categorized != m_proxyModel->isCategorizedModel()) {
 220         m_proxyModel->setCategorizedModel(categorized);
 221         emit categorizedSortingChanged();
 222     }
 223
 224     loadDirectory(viewPropsUrl);
 225
 226     emit modeChanged();
 227 }
 228
 229 DolphinView::Mode DolphinView::mode() const
 230 {
 231     return m_mode;
 232 }
 233
 234 void DolphinView::setShowPreview(bool show)
 235 {
 236     if (m_showPreview == show) {
 237         return;
 238     }
 239
 240     const KUrl viewPropsUrl = viewPropertiesUrl();
 241     ViewProperties props(viewPropsUrl);
 242     props.setShowPreview(show);
 243
 244     m_showPreview = show;
 245
 246     emit showPreviewChanged();
 247
 248     loadDirectory(viewPropsUrl, true);
 249 }
 250
 251 bool DolphinView::showPreview() const
 252 {
 253     return m_showPreview;
 254 }
 255
 256 void DolphinView::setShowHiddenFiles(bool show)
 257 {
 258     if (m_dirLister->showingDotFiles() == show) {
 259         return;
 260     }
 261
 262     const KUrl viewPropsUrl = viewPropertiesUrl();
 263     ViewProperties props(viewPropsUrl);
 264     props.setShowHiddenFiles(show);
 265
 266     m_dirLister->setShowingDotFiles(show);
 267     emit showHiddenFilesChanged();
 268
 269     loadDirectory(viewPropsUrl, true);
 270 }
 271
 272 bool DolphinView::showHiddenFiles() const
 273 {
 274     return m_dirLister->showingDotFiles();
 275 }
 276
 277 void DolphinView::setCategorizedSorting(bool categorized)
 278 {
 279     if (categorized == categorizedSorting()) {
 280         return;
 281     }
 282
 283     // setCategorizedSorting(true) may only get invoked
 284     // if the view supports categorized sorting
 285     Q_ASSERT(!categorized || supportsCategorizedSorting());
 286
 287     ViewProperties props(viewPropertiesUrl());
 288     props.setCategorizedSorting(categorized);
 289     props.save();
 290
 291     m_storedCategorizedSorting = categorized;
 292     m_proxyModel->setCategorizedModel(categorized);
 293
 294     emit categorizedSortingChanged();
 295 }
 296
 297 bool DolphinView::categorizedSorting() const
 298 {
 299     // If all view modes would support categorized sorting, returning
 300     // m_proxyModel->isCategorizedModel() would be the way to go. As
 301     // currently only the icons view supports caterized sorting, we remember
 302     // the stored view properties state in m_storedCategorizedSorting and
 303     // return this state. The application takes care to disable the corresponding
 304     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 305     // that this setting is not applied to the current view mode.
 306     return m_storedCategorizedSorting;
 307 }
 308
 309 bool DolphinView::supportsCategorizedSorting() const
 310 {
 311     return m_iconsView != 0;
 312 }
 313
 314 void DolphinView::selectAll()
 315 {
 316     itemView()->selectAll();
 317 }
 318
 319 void DolphinView::invertSelection()
 320 {
 321     if (isColumnViewActive()) {
 322         // QAbstractItemView does not offer a virtual method invertSelection()
 323         // as counterpart to QAbstractItemView::selectAll(). This makes it
 324         // necessary to delegate the inverting of the selection to the
 325         // column view, as only the selection of the active column should
 326         // get inverted.
 327         m_columnView->invertSelection();
 328     } else {
 329         QItemSelectionModel* selectionModel = itemView()->selectionModel();
 330         const QAbstractItemModel* itemModel = selectionModel->model();
 331
 332         const QModelIndex topLeft = itemModel->index(0, 0);
 333         const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 334                                                          itemModel->columnCount() - 1);
 335
 336         const QItemSelection selection(topLeft, bottomRight);
 337         selectionModel->select(selection, QItemSelectionModel::Toggle);
 338     }
 339 }
 340
 341 bool DolphinView::hasSelection() const
 342 {
 343     return itemView()->selectionModel()->hasSelection();
 344 }
 345
 346 void DolphinView::clearSelection()
 347 {
 348     itemView()->selectionModel()->clear();
 349 }
 350
 351 KFileItemList DolphinView::selectedItems() const
 352 {
 353     const QAbstractItemView* view = itemView();
 354
 355     // Our view has a selection, we will map them back to the DolphinModel
 356     // and then fill the KFileItemList.
 357     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 358
 359     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 360     KFileItemList itemList;
 361
 362     const QModelIndexList indexList = selection.indexes();
 363     foreach (QModelIndex index, indexList) {
 364         KFileItem item = m_dolphinModel->itemForIndex(index);
 365         if (!item.isNull()) {
 366             itemList.append(item);
 367         }
 368     }
 369
 370     return itemList;
 371 }
 372
 373 KUrl::List DolphinView::selectedUrls() const
 374 {
 375     KUrl::List urls;
 376     const KFileItemList list = selectedItems();
 377     foreach (KFileItem item, list) {
 378         urls.append(item.url());
 379     }
 380     return urls;
 381 }
 382
 383 KFileItem DolphinView::fileItem(const QModelIndex& index) const
 384 {
 385     const QModelIndex dolphinModelIndex = m_proxyModel->mapToSource(index);
 386     return m_dolphinModel->itemForIndex(dolphinModelIndex);
 387 }
 388
 389 void DolphinView::setContentsPosition(int x, int y)
 390 {
 391     QAbstractItemView* view = itemView();
 392
 393     // the ColumnView takes care itself for the horizontal scrolling
 394     if (!isColumnViewActive()) {
 395         view->horizontalScrollBar()->setValue(x);
 396     }
 397     view->verticalScrollBar()->setValue(y);
 398
 399     m_loadingDirectory = false;
 400 }
 401
 402 QPoint DolphinView::contentsPosition() const
 403 {
 404     const int x = itemView()->horizontalScrollBar()->value();
 405     const int y = itemView()->verticalScrollBar()->value();
 406     return QPoint(x, y);
 407 }
 408
 409 void DolphinView::zoomIn()
 410 {
 411     m_controller->triggerZoomIn();
 412 }
 413
 414 void DolphinView::zoomOut()
 415 {
 416     m_controller->triggerZoomOut();
 417 }
 418
 419 bool DolphinView::isZoomInPossible() const
 420 {
 421     return m_controller->isZoomInPossible();
 422 }
 423
 424 bool DolphinView::isZoomOutPossible() const
 425 {
 426     return m_controller->isZoomOutPossible();
 427 }
 428
 429 void DolphinView::setSorting(Sorting sorting)
 430 {
 431     if (sorting != this->sorting()) {
 432         updateSorting(sorting);
 433     }
 434 }
 435
 436 DolphinView::Sorting DolphinView::sorting() const
 437 {
 438     return m_proxyModel->sorting();
 439 }
 440
 441 void DolphinView::setSortOrder(Qt::SortOrder order)
 442 {
 443     if (sortOrder() != order) {
 444         updateSortOrder(order);
 445     }
 446 }
 447
 448 Qt::SortOrder DolphinView::sortOrder() const
 449 {
 450     return m_proxyModel->sortOrder();
 451 }
 452
 453 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 454 {
 455     const KUrl viewPropsUrl = viewPropertiesUrl();
 456     ViewProperties props(viewPropsUrl);
 457     props.setAdditionalInfo(info);
 458     m_fileItemDelegate->setShowInformation(info);
 459
 460     emit additionalInfoChanged(info);
 461
 462     if (itemView() != m_detailsView) {
 463         // the details view requires no reloading of the directory, as it maps
 464         // the file item delegate info to its columns internally
 465         loadDirectory(viewPropsUrl, true);
 466     }
 467 }
 468
 469 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 470 {
 471     return m_fileItemDelegate->showInformation();
 472 }
 473
 474 void DolphinView::reload()
 475 {
 476     setUrl(url());
 477     loadDirectory(url(), true);
 478 }
 479
 480 void DolphinView::refresh()
 481 {
 482     const bool oldActivationState = m_active;
 483     m_active = true;
 484
 485     createView();
 486     applyViewProperties(m_controller->url());
 487     reload();
 488
 489     setActive(oldActivationState);
 490 }
 491
 492 void DolphinView::updateView(const KUrl& url, const KUrl& rootUrl)
 493 {
 494     if (m_controller->url() == url) {
 495         return;
 496     }
 497
 498     m_controller->setUrl(url); // emits urlChanged, which we forward
 499
 500     if (!rootUrl.isEmpty() && rootUrl.isParentOf(url)) {
 501         applyViewProperties(rootUrl);
 502         loadDirectory(rootUrl);
 503         if (itemView() == m_columnView) {
 504             m_columnView->setRootUrl(rootUrl);
 505             m_columnView->showColumn(url);
 506         }
 507     } else {
 508         applyViewProperties(url);
 509         loadDirectory(url);
 510     }
 511
 512     emit startedPathLoading(url);
 513 }
 514
 515 void DolphinView::setNameFilter(const QString& nameFilter)
 516 {
 517     m_proxyModel->setFilterRegExp(nameFilter);
 518
 519     if (isColumnViewActive()) {
 520         // adjusting the directory lister is not enough in the case of the
 521         // column view, as each column has its own directory lister internally...
 522         m_columnView->setNameFilter(nameFilter);
 523     }
 524 }
 525
 526 void DolphinView::calculateItemCount(int& fileCount, int& folderCount)
 527 {
 528     foreach (KFileItem item, m_dirLister->items()) {
 529         if (item.isDir()) {
 530             ++folderCount;
 531         } else {
 532             ++fileCount;
 533         }
 534     }
 535 }
 536
 537 void DolphinView::setUrl(const KUrl& url)
 538 {
 539     updateView(url, KUrl());
 540 }
 541
 542 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 543 {
 544     QWidget::mouseReleaseEvent(event);
 545     setActive(true);
 546 }
 547 void DolphinView::activate()
 548 {
 549     setActive(true);
 550 }
 551
 552 void DolphinView::triggerItem(const KFileItem& item)
 553 {
 554     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 555     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 556         // items are selected by the user, hence don't trigger the
 557         // item specified by 'index'
 558         return;
 559     }
 560
 561     if (item.isNull()) {
 562         return;
 563     }
 564
 565     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 566 }
 567
 568 void DolphinView::generatePreviews(const KFileItemList& items)
 569 {
 570     if (m_controller->dolphinView()->showPreview()) {
 571         KIO::PreviewJob* job = KIO::filePreview(items, 128);
 572         connect(job, SIGNAL(gotPreview(const KFileItem&, const QPixmap&)),
 573                 this, SLOT(showPreview(const KFileItem&, const QPixmap&)));
 574     }
 575 }
 576
 577 void DolphinView::showPreview(const KFileItem& item, const QPixmap& pixmap)
 578 {
 579     Q_ASSERT(!item.isNull());
 580     if (item.url().directory() != m_dirLister->url().path()) {
 581         // the preview job is still working on items of an older URL, hence
 582         // the item is not part of the directory model anymore
 583         return;
 584     }
 585
 586     const QModelIndex idx = m_dolphinModel->indexForItem(item);
 587     if (idx.isValid() && (idx.column() == 0)) {
 588         const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 589         if (KonqMimeData::decodeIsCutSelection(mimeData) && isCutItem(item)) {
 590             KIconEffect iconEffect;
 591             const QPixmap cutPixmap = iconEffect.apply(pixmap, KIconLoader::Desktop, KIconLoader::DisabledState);
 592             m_dolphinModel->setData(idx, QIcon(cutPixmap), Qt::DecorationRole);
 593         } else {
 594             m_dolphinModel->setData(idx, QIcon(pixmap), Qt::DecorationRole);
 595         }
 596     }
 597 }
 598
 599 void DolphinView::emitSelectionChangedSignal()
 600 {
 601     emit selectionChanged(DolphinView::selectedItems());
 602 }
 603
 604 void DolphinView::loadDirectory(const KUrl& url, bool reload)
 605 {
 606     if (!url.isValid()) {
 607         const QString location(url.pathOrUrl());
 608         if (location.isEmpty()) {
 609             emit errorMessage(i18nc("@info:status", "The location is empty."));
 610         } else {
 611             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
 612         }
 613         return;
 614     }
 615
 616     m_cutItemsCache.clear();
 617     m_loadingDirectory = true;
 618
 619     m_dirLister->stop();
 620     m_dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
 621
 622     if (isColumnViewActive()) {
 623         // adjusting the directory lister is not enough in the case of the
 624         // column view, as each column has its own directory lister internally...
 625         if (reload) {
 626             m_columnView->reload();
 627         } else {
 628             m_columnView->showColumn(url);
 629         }
 630     }
 631 }
 632
 633 KUrl DolphinView::viewPropertiesUrl() const
 634 {
 635     if (isColumnViewActive()) {
 636         return m_dirLister->url();
 637     }
 638
 639     return url();
 640 }
 641
 642 void DolphinView::applyViewProperties(const KUrl& url)
 643 {
 644     if (isColumnViewActive() && rootUrl().isParentOf(url)) {
 645         // The column view is active, hence don't apply the view properties
 646         // of sub directories (represented by columns) to the view. The
 647         // view always represents the properties of the first column.
 648         return;
 649     }
 650
 651     const ViewProperties props(url);
 652
 653     const Mode mode = props.viewMode();
 654     if (m_mode != mode) {
 655         m_mode = mode;
 656         createView();
 657         emit modeChanged();
 658     }
 659     if (itemView() == 0) {
 660         createView();
 661     }
 662     Q_ASSERT(itemView() != 0);
 663     Q_ASSERT(m_fileItemDelegate != 0);
 664
 665     const bool showHiddenFiles = props.showHiddenFiles();
 666     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
 667         m_dirLister->setShowingDotFiles(showHiddenFiles);
 668         emit showHiddenFilesChanged();
 669     }
 670
 671     m_storedCategorizedSorting = props.categorizedSorting();
 672     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 673     if (categorized != m_proxyModel->isCategorizedModel()) {
 674         m_proxyModel->setCategorizedModel(categorized);
 675         emit categorizedSortingChanged();
 676     }
 677
 678     const DolphinView::Sorting sorting = props.sorting();
 679     if (sorting != m_proxyModel->sorting()) {
 680         m_proxyModel->setSorting(sorting);
 681         emit sortingChanged(sorting);
 682     }
 683
 684     const Qt::SortOrder sortOrder = props.sortOrder();
 685     if (sortOrder != m_proxyModel->sortOrder()) {
 686         m_proxyModel->setSortOrder(sortOrder);
 687         emit sortOrderChanged(sortOrder);
 688     }
 689
 690     KFileItemDelegate::InformationList info = props.additionalInfo();
 691     if (info != m_fileItemDelegate->showInformation()) {
 692         m_fileItemDelegate->setShowInformation(info);
 693         emit additionalInfoChanged(info);
 694     }
 695
 696     const bool showPreview = props.showPreview();
 697     if (showPreview != m_showPreview) {
 698         m_showPreview = showPreview;
 699         emit showPreviewChanged();
 700     }
 701 }
 702
 703 void DolphinView::changeSelection(const KFileItemList& selection)
 704 {
 705     clearSelection();
 706     if (selection.isEmpty()) {
 707         return;
 708     }
 709     const KUrl& baseUrl = url();
 710     KUrl url;
 711     QItemSelection new_selection;
 712     foreach(const KFileItem& item, selection) {
 713         url = item.url().upUrl();
 714         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 715             QModelIndex index = m_proxyModel->mapFromSource(m_dolphinModel->indexForItem(item));
 716             new_selection.select(index, index);
 717         }
 718     }
 719     itemView()->selectionModel()->select(new_selection,
 720                                          QItemSelectionModel::ClearAndSelect
 721                                          | QItemSelectionModel::Current);
 722 }
 723
 724 void DolphinView::openContextMenu(const QPoint& pos)
 725 {
 726     KFileItem item;
 727
 728     const QModelIndex index = itemView()->indexAt(pos);
 729     if (index.isValid() && (index.column() == DolphinModel::Name)) {
 730         item = fileItem(index);
 731     }
 732
 733     emit requestContextMenu(item, url());
 734 }
 735
 736 void DolphinView::dropUrls(const KUrl::List& urls,
 737                            const KUrl& destPath,
 738                            const KFileItem& destItem)
 739 {
 740     const KUrl& destination = !destItem.isNull() && destItem.isDir() ?
 741                               destItem.url() : destPath;
 742     const KUrl sourceDir = KUrl(urls.first().directory());
 743     if (sourceDir != destination) {
 744         dropUrls(urls, destination);
 745     }
 746 }
 747
 748 void DolphinView::dropUrls(const KUrl::List& urls,
 749                            const KUrl& destination)
 750 {
 751     emit urlsDropped(urls, destination);
 752 }
 753
 754 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 755 {
 756     ViewProperties props(viewPropertiesUrl());
 757     props.setSorting(sorting);
 758
 759     m_proxyModel->setSorting(sorting);
 760
 761     emit sortingChanged(sorting);
 762 }
 763
 764 void DolphinView::updateSortOrder(Qt::SortOrder order)
 765 {
 766     ViewProperties props(viewPropertiesUrl());
 767     props.setSortOrder(order);
 768
 769     m_proxyModel->setSortOrder(order);
 770
 771     emit sortOrderChanged(order);
 772 }
 773
 774 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 775 {
 776     ViewProperties props(viewPropertiesUrl());
 777     props.setAdditionalInfo(info);
 778     props.save();
 779
 780     m_fileItemDelegate->setShowInformation(info);
 781
 782     emit additionalInfoChanged(info);
 783
 784 }
 785
 786 void DolphinView::emitContentsMoved()
 787 {
 788     // only emit the contents moved signal if:
 789     // - no directory loading is ongoing (this would reset the contents position
 790     //   always to (0, 0))
 791     // - if the Column View is active: the column view does an automatic
 792     //   positioning during the loading operation, which must be remembered
 793     if (!m_loadingDirectory || isColumnViewActive()) {
 794         const QPoint pos(contentsPosition());
 795         emit contentsMoved(pos.x(), pos.y());
 796     }
 797 }
 798
 799 void DolphinView::updateCutItems()
 800 {
 801     // restore the icons of all previously selected items to the
 802     // original state...
 803     QList<CutItem>::const_iterator it = m_cutItemsCache.begin();
 804     QList<CutItem>::const_iterator end = m_cutItemsCache.end();
 805     while (it != end) {
 806         const QModelIndex index = m_dolphinModel->indexForUrl((*it).url);
 807         if (index.isValid()) {
 808             m_dolphinModel->setData(index, QIcon((*it).pixmap), Qt::DecorationRole);
 809         }
 810         ++it;
 811     }
 812     m_cutItemsCache.clear();
 813
 814     // ... and apply an item effect to all currently cut items
 815     applyCutItemEffect();
 816 }
 817
 818 void DolphinView::showHoverInformation(const KFileItem& item)
 819 {
 820     if (hasSelection()) {
 821         return;
 822     }
 823
 824     emit requestItemInfo(item);
 825 }
 826
 827 void DolphinView::clearHoverInformation()
 828 {
 829     emit requestItemInfo(KFileItem());
 830 }
 831
 832
 833 void DolphinView::createView()
 834 {
 835     deleteView();
 836     Q_ASSERT(m_iconsView == 0);
 837     Q_ASSERT(m_detailsView == 0);
 838     Q_ASSERT(m_columnView == 0);
 839
 840     QAbstractItemView* view = 0;
 841     switch (m_mode) {
 842     case IconsView: {
 843         m_iconsView = new DolphinIconsView(this, m_controller);
 844         view = m_iconsView;
 845         break;
 846     }
 847
 848     case DetailsView:
 849         m_detailsView = new DolphinDetailsView(this, m_controller);
 850         view = m_detailsView;
 851         break;
 852
 853     case ColumnView:
 854         m_columnView = new DolphinColumnView(this, m_controller);
 855         view = m_columnView;
 856         break;
 857     }
 858
 859     Q_ASSERT(view != 0);
 860
 861     m_fileItemDelegate = new KFileItemDelegate(view);
 862     view->setItemDelegate(m_fileItemDelegate);
 863
 864     view->setModel(m_proxyModel);
 865     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
 866
 867     new KMimeTypeResolver(view, m_dolphinModel);
 868     m_topLayout->insertWidget(1, view);
 869
 870     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
 871             this, SLOT(emitSelectionChangedSignal()));
 872     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
 873             this, SLOT(emitContentsMoved()));
 874     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
 875             this, SLOT(emitContentsMoved()));
 876 }
 877
 878 void DolphinView::deleteView()
 879 {
 880     QAbstractItemView* view = itemView();
 881     if (view != 0) {
 882         m_topLayout->removeWidget(view);
 883         view->close();
 884         view->deleteLater();
 885         view = 0;
 886         m_iconsView = 0;
 887         m_detailsView = 0;
 888         m_columnView = 0;
 889         m_fileItemDelegate = 0;
 890     }
 891 }
 892
 893 QAbstractItemView* DolphinView::itemView() const
 894 {
 895     if (m_detailsView != 0) {
 896         return m_detailsView;
 897     } else if (m_columnView != 0) {
 898         return m_columnView;
 899     }
 900
 901     return m_iconsView;
 902 }
 903
 904 bool DolphinView::isCutItem(const KFileItem& item) const
 905 {
 906     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 907     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
 908
 909     const KUrl& itemUrl = item.url();
 910     KUrl::List::const_iterator it = cutUrls.begin();
 911     const KUrl::List::const_iterator end = cutUrls.end();
 912     while (it != end) {
 913         if (*it == itemUrl) {
 914             return true;
 915         }
 916         ++it;
 917     }
 918
 919     return false;
 920 }
 921
 922 void DolphinView::applyCutItemEffect()
 923 {
 924     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 925     if (!KonqMimeData::decodeIsCutSelection(mimeData)) {
 926         return;
 927     }
 928
 929     KFileItemList items(m_dirLister->items());
 930     KFileItemList::const_iterator it = items.begin();
 931     const KFileItemList::const_iterator end = items.end();
 932     while (it != end) {
 933         const KFileItem item = *it;
 934         if (isCutItem(item)) {
 935             const QModelIndex index = m_dolphinModel->indexForItem(item);
 936             const QVariant value = m_dolphinModel->data(index, Qt::DecorationRole);
 937             if (value.type() == QVariant::Icon) {
 938                 const QIcon icon(qvariant_cast<QIcon>(value));
 939                 QPixmap pixmap = icon.pixmap(128, 128);
 940
 941                 // remember current pixmap for the item to be able
 942                 // to restore it when other items get cut
 943                 CutItem cutItem;
 944                 cutItem.url = item.url();
 945                 cutItem.pixmap = pixmap;
 946                 m_cutItemsCache.append(cutItem);
 947
 948                 // apply icon effect to the cut item
 949                 KIconEffect iconEffect;
 950                 pixmap = iconEffect.apply(pixmap, KIconLoader::Desktop, KIconLoader::DisabledState);
 951                 m_dolphinModel->setData(index, QIcon(pixmap), Qt::DecorationRole);
 952             }
 953         }
 954         ++it;
 955     }
 956 }
 957
 958 KToggleAction* DolphinView::iconsModeAction(KActionCollection* actionCollection)
 959 {
 960     KToggleAction* iconsView = actionCollection->add<KToggleAction>("icons");
 961     iconsView->setText(i18nc("@action:inmenu View Mode", "Icons"));
 962     iconsView->setShortcut(Qt::CTRL | Qt::Key_1);
 963     iconsView->setIcon(KIcon("fileview-icon"));
 964     iconsView->setData(QVariant::fromValue(IconsView));
 965     return iconsView;
 966 }
 967
 968 KToggleAction* DolphinView::detailsModeAction(KActionCollection* actionCollection)
 969 {
 970     KToggleAction* detailsView = actionCollection->add<KToggleAction>("details");
 971     detailsView->setText(i18nc("@action:inmenu View Mode", "Details"));
 972     detailsView->setShortcut(Qt::CTRL | Qt::Key_2);
 973     detailsView->setIcon(KIcon("fileview-detailed"));
 974     detailsView->setData(QVariant::fromValue(DetailsView));
 975     return detailsView;
 976 }
 977
 978 KToggleAction* DolphinView::columnsModeAction(KActionCollection* actionCollection)
 979 {
 980     KToggleAction* columnView = actionCollection->add<KToggleAction>("columns");
 981     columnView->setText(i18nc("@action:inmenu View Mode", "Columns"));
 982     columnView->setShortcut(Qt::CTRL | Qt::Key_3);
 983     columnView->setIcon(KIcon("fileview-column"));
 984     columnView->setData(QVariant::fromValue(ColumnView));
 985     return columnView;
 986 }
 987
 988 QString DolphinView::currentViewModeActionName() const
 989 {
 990     switch (m_mode) {
 991     case DolphinView::IconsView:
 992         return "icons";
 993     case DolphinView::DetailsView:
 994         return "details";
 995     case DolphinView::ColumnView:
 996         return "columns";
 997     }
 998     return QString(); // can't happen
 999 }
1000
1001 #include "dolphinview.moc"