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 #include <QClipboard>
  33
  34 #include <kcolorscheme.h>
  35 #include <kdirlister.h>
  36 #include <kfileitemdelegate.h>
  37 #include <klocale.h>
  38 #include <kiconeffect.h>
  39 #include <kio/deletejob.h>
  40 #include <kio/netaccess.h>
  41 #include <kio/previewjob.h>
  42 #include <kmimetyperesolver.h>
  43 #include <konqmimedata.h>
  44 #include <konq_operations.h>
  45 #include <kurl.h>
  46
  47 #include "dolphinmodel.h"
  48 #include "dolphincolumnview.h"
  49 #include "dolphincontroller.h"
  50 #include "dolphinsortfilterproxymodel.h"
  51 #include "dolphindetailsview.h"
  52 #include "dolphiniconsview.h"
  53 #include "renamedialog.h"
  54 #include "viewproperties.h"
  55 #include "dolphinsettings.h"
  56 #include "dolphin_generalsettings.h"
  57
  58 DolphinView::DolphinView(QWidget* parent,
  59                          const KUrl& url,
  60                          KDirLister* dirLister,
  61                          DolphinModel* dolphinModel,
  62                          DolphinSortFilterProxyModel* proxyModel) :
  63     QWidget(parent),
  64     m_active(true),
  65     m_showPreview(false),
  66     m_loadingDirectory(false),
  67     m_storedCategorizedSorting(false),
  68     m_mode(DolphinView::IconsView),
  69     m_topLayout(0),
  70     m_controller(0),
  71     m_iconsView(0),
  72     m_detailsView(0),
  73     m_columnView(0),
  74     m_fileItemDelegate(0),
  75     m_selectionModel(0),
  76     m_dolphinModel(dolphinModel),
  77     m_dirLister(dirLister),
  78     m_proxyModel(proxyModel)
  79 {
  80     setFocusPolicy(Qt::StrongFocus);
  81     m_topLayout = new QVBoxLayout(this);
  82     m_topLayout->setSpacing(0);
  83     m_topLayout->setMargin(0);
  84
  85     QClipboard* clipboard = QApplication::clipboard();
  86     connect(clipboard, SIGNAL(dataChanged()),
  87             this, SLOT(updateCutItems()));
  88
  89     connect(m_dirLister, SIGNAL(completed()),
  90             this, SLOT(updateCutItems()));
  91     connect(m_dirLister, SIGNAL(newItems(const KFileItemList&)),
  92             this, SLOT(generatePreviews(const KFileItemList&)));
  93
  94     m_controller = new DolphinController(this);
  95     m_controller->setUrl(url);
  96
  97     // Receiver of the DolphinView signal 'urlChanged()' don't need
  98     // to care whether the internal controller changed the URL already or whether
  99     // the controller just requested an URL change and will be updated later.
 100     // In both cases the URL has been changed:
 101     connect(m_controller, SIGNAL(urlChanged(const KUrl&)),
 102             this, SIGNAL(urlChanged(const KUrl&)));
 103     connect(m_controller, SIGNAL(requestUrlChange(const KUrl&)),
 104             this, SIGNAL(urlChanged(const KUrl&)));
 105
 106     connect(m_controller, SIGNAL(requestContextMenu(const QPoint&)),
 107             this, SLOT(openContextMenu(const QPoint&)));
 108     connect(m_controller, SIGNAL(urlsDropped(const KUrl::List&, const KUrl&, const KFileItem&)),
 109             this, SLOT(dropUrls(const KUrl::List&, const KUrl&, const KFileItem&)));
 110     connect(m_controller, SIGNAL(sortingChanged(DolphinView::Sorting)),
 111             this, SLOT(updateSorting(DolphinView::Sorting)));
 112     connect(m_controller, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 113             this, SLOT(updateSortOrder(Qt::SortOrder)));
 114     connect(m_controller, SIGNAL(additionalInfoChanged(const KFileItemDelegate::InformationList&)),
 115             this, SLOT(updateAdditionalInfo(const KFileItemDelegate::InformationList&)));
 116     connect(m_controller, SIGNAL(itemTriggered(const KFileItem&)),
 117             this, SLOT(triggerItem(const KFileItem&)));
 118     connect(m_controller, SIGNAL(activated()),
 119             this, SLOT(activate()));
 120     connect(m_controller, SIGNAL(itemEntered(const KFileItem&)),
 121             this, SLOT(showHoverInformation(const KFileItem&)));
 122     connect(m_controller, SIGNAL(viewportEntered()),
 123             this, SLOT(clearHoverInformation()));
 124
 125     applyViewProperties(url);
 126     m_topLayout->addWidget(itemView());
 127 }
 128
 129 DolphinView::~DolphinView()
 130 {
 131 }
 132
 133 const KUrl& DolphinView::url() const
 134 {
 135     return m_controller->url();
 136 }
 137
 138 KUrl DolphinView::rootUrl() const
 139 {
 140     return isColumnViewActive() ? m_columnView->rootUrl() : url();
 141 }
 142
 143 void DolphinView::setActive(bool active)
 144 {
 145     if (active == m_active) {
 146         return;
 147     }
 148
 149     m_active = active;
 150     m_selectionModel->clearSelection();
 151
 152     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 153     if (active) {
 154         // TODO: emitting urlChanged() is a hack, as the URL hasn't really changed. It
 155         // bypasses the problem when having a split view and changing the active view to
 156         // update the some URL dependent states. A nicer approach should be no big deal...
 157         emit urlChanged(url());
 158         emit selectionChanged(selectedItems());
 159     } else {
 160         color.setAlpha(150);
 161     }
 162
 163     QWidget* viewport = itemView()->viewport();
 164     QPalette palette;
 165     palette.setColor(viewport->backgroundRole(), color);
 166     viewport->setPalette(palette);
 167
 168     update();
 169
 170     if (active) {
 171         emit activated();
 172     }
 173
 174     m_controller->indicateActivationChange(active);
 175 }
 176
 177 bool DolphinView::isActive() const
 178 {
 179     return m_active;
 180 }
 181
 182 void DolphinView::setMode(Mode mode)
 183 {
 184     if (mode == m_mode) {
 185         return; // the wished mode is already set
 186     }
 187
 188     m_mode = mode;
 189
 190     if (isColumnViewActive()) {
 191         // When changing the mode in the column view, it makes sense
 192         // to go back to the root URL of the column view automatically.
 193         // Otherwise there it would not be possible to turn off the column view
 194         // without focusing the first column.
 195         const KUrl root = rootUrl();
 196         setUrl(root);
 197         m_controller->setUrl(root);
 198     }
 199
 200     deleteView();
 201
 202     // It is important to read the view properties _after_ deleting the view,
 203     // as e. g. the detail view might adjust the additional information properties
 204     // after getting closed:
 205     const KUrl viewPropsUrl = viewPropertiesUrl();
 206     ViewProperties props(viewPropsUrl);
 207     props.setViewMode(m_mode);
 208     createView();
 209
 210     // the file item delegate has been recreated, apply the current
 211     // additional information manually
 212     const KFileItemDelegate::InformationList infoList = props.additionalInfo();
 213     m_fileItemDelegate->setShowInformation(infoList);
 214     emit additionalInfoChanged(infoList);
 215
 216     // Not all view modes support categorized sorting. Adjust the sorting model
 217     // if changing the view mode results in a change of the categorized sorting
 218     // capabilities.
 219     m_storedCategorizedSorting = props.categorizedSorting();
 220     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 221     if (categorized != m_proxyModel->isCategorizedModel()) {
 222         m_proxyModel->setCategorizedModel(categorized);
 223         emit categorizedSortingChanged();
 224     }
 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() || !m_active) {
 821         return;
 822     }
 823
 824     emit requestItemInfo(item);
 825 }
 826
 827 void DolphinView::clearHoverInformation()
 828 {
 829     if (m_active) {
 830         emit requestItemInfo(KFileItem());
 831     }
 832 }
 833
 834
 835 void DolphinView::createView()
 836 {
 837     deleteView();
 838     Q_ASSERT(m_iconsView == 0);
 839     Q_ASSERT(m_detailsView == 0);
 840     Q_ASSERT(m_columnView == 0);
 841
 842     QAbstractItemView* view = 0;
 843     switch (m_mode) {
 844     case IconsView: {
 845         m_iconsView = new DolphinIconsView(this, m_controller);
 846         view = m_iconsView;
 847         break;
 848     }
 849
 850     case DetailsView:
 851         m_detailsView = new DolphinDetailsView(this, m_controller);
 852         view = m_detailsView;
 853         break;
 854
 855     case ColumnView:
 856         m_columnView = new DolphinColumnView(this, m_controller);
 857         view = m_columnView;
 858         break;
 859     }
 860
 861     Q_ASSERT(view != 0);
 862
 863     m_fileItemDelegate = new KFileItemDelegate(view);
 864     view->setItemDelegate(m_fileItemDelegate);
 865
 866     view->setModel(m_proxyModel);
 867     if (m_selectionModel != 0) {
 868         view->setSelectionModel(m_selectionModel);
 869     } else {
 870         m_selectionModel = view->selectionModel();
 871     }
 872
 873     // reparent the selection model, as it should not be deleted
 874     // when deleting the model
 875     m_selectionModel->setParent(this);
 876
 877     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
 878
 879     new KMimeTypeResolver(view, m_dolphinModel);
 880     m_topLayout->insertWidget(1, view);
 881
 882     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
 883             this, SLOT(emitSelectionChangedSignal()));
 884     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
 885             this, SLOT(emitContentsMoved()));
 886     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
 887             this, SLOT(emitContentsMoved()));
 888 }
 889
 890 void DolphinView::deleteView()
 891 {
 892     QAbstractItemView* view = itemView();
 893     if (view != 0) {
 894         m_topLayout->removeWidget(view);
 895         view->close();
 896         view->deleteLater();
 897         view = 0;
 898         m_iconsView = 0;
 899         m_detailsView = 0;
 900         m_columnView = 0;
 901         m_fileItemDelegate = 0;
 902     }
 903 }
 904
 905 QAbstractItemView* DolphinView::itemView() const
 906 {
 907     if (m_detailsView != 0) {
 908         return m_detailsView;
 909     } else if (m_columnView != 0) {
 910         return m_columnView;
 911     }
 912
 913     return m_iconsView;
 914 }
 915
 916 bool DolphinView::isCutItem(const KFileItem& item) const
 917 {
 918     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 919     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
 920
 921     const KUrl& itemUrl = item.url();
 922     KUrl::List::const_iterator it = cutUrls.begin();
 923     const KUrl::List::const_iterator end = cutUrls.end();
 924     while (it != end) {
 925         if (*it == itemUrl) {
 926             return true;
 927         }
 928         ++it;
 929     }
 930
 931     return false;
 932 }
 933
 934 void DolphinView::applyCutItemEffect()
 935 {
 936     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 937     if (!KonqMimeData::decodeIsCutSelection(mimeData)) {
 938         return;
 939     }
 940
 941     KFileItemList items(m_dirLister->items());
 942     KFileItemList::const_iterator it = items.begin();
 943     const KFileItemList::const_iterator end = items.end();
 944     while (it != end) {
 945         const KFileItem item = *it;
 946         if (isCutItem(item)) {
 947             const QModelIndex index = m_dolphinModel->indexForItem(item);
 948             const QVariant value = m_dolphinModel->data(index, Qt::DecorationRole);
 949             if (value.type() == QVariant::Icon) {
 950                 const QIcon icon(qvariant_cast<QIcon>(value));
 951                 QPixmap pixmap = icon.pixmap(128, 128);
 952
 953                 // remember current pixmap for the item to be able
 954                 // to restore it when other items get cut
 955                 CutItem cutItem;
 956                 cutItem.url = item.url();
 957                 cutItem.pixmap = pixmap;
 958                 m_cutItemsCache.append(cutItem);
 959
 960                 // apply icon effect to the cut item
 961                 KIconEffect iconEffect;
 962                 pixmap = iconEffect.apply(pixmap, KIconLoader::Desktop, KIconLoader::DisabledState);
 963                 m_dolphinModel->setData(index, QIcon(pixmap), Qt::DecorationRole);
 964             }
 965         }
 966         ++it;
 967     }
 968 }
 969
 970 KToggleAction* DolphinView::iconsModeAction(KActionCollection* actionCollection)
 971 {
 972     KToggleAction* iconsView = actionCollection->add<KToggleAction>("icons");
 973     iconsView->setText(i18nc("@action:inmenu View Mode", "Icons"));
 974     iconsView->setShortcut(Qt::CTRL | Qt::Key_1);
 975     iconsView->setIcon(KIcon("fileview-icon"));
 976     iconsView->setData(QVariant::fromValue(IconsView));
 977     return iconsView;
 978 }
 979
 980 KToggleAction* DolphinView::detailsModeAction(KActionCollection* actionCollection)
 981 {
 982     KToggleAction* detailsView = actionCollection->add<KToggleAction>("details");
 983     detailsView->setText(i18nc("@action:inmenu View Mode", "Details"));
 984     detailsView->setShortcut(Qt::CTRL | Qt::Key_2);
 985     detailsView->setIcon(KIcon("fileview-detailed"));
 986     detailsView->setData(QVariant::fromValue(DetailsView));
 987     return detailsView;
 988 }
 989
 990 KToggleAction* DolphinView::columnsModeAction(KActionCollection* actionCollection)
 991 {
 992     KToggleAction* columnView = actionCollection->add<KToggleAction>("columns");
 993     columnView->setText(i18nc("@action:inmenu View Mode", "Columns"));
 994     columnView->setShortcut(Qt::CTRL | Qt::Key_3);
 995     columnView->setIcon(KIcon("fileview-column"));
 996     columnView->setData(QVariant::fromValue(ColumnView));
 997     return columnView;
 998 }
 999
1000 QString DolphinView::currentViewModeActionName() const
1001 {
1002     switch (m_mode) {
1003     case DolphinView::IconsView:
1004         return "icons";
1005     case DolphinView::DetailsView:
1006         return "details";
1007     case DolphinView::ColumnView:
1008         return "columns";
1009     }
1010     return QString(); // can't happen
1011 }
1012
1013 void DolphinView::renameSelectedItems()
1014 {
1015     const KFileItemList items = selectedItems();
1016     if (items.count() > 1) {
1017         // More than one item has been selected for renaming. Open
1018         // a rename dialog and rename all items afterwards.
1019         RenameDialog dialog(this, items);
1020         if (dialog.exec() == QDialog::Rejected) {
1021             return;
1022         }
1023
1024         const QString newName = dialog.newName();
1025         if (newName.isEmpty()) {
1026             emit errorMessage(dialog.errorString());
1027         } else {
1028             // TODO: check how this can be integrated into KonqFileUndoManager/KonqOperations
1029             // as one operation instead of n rename operations like it is done now...
1030             Q_ASSERT(newName.contains('#'));
1031
1032             // iterate through all selected items and rename them...
1033             const int replaceIndex = newName.indexOf('#');
1034             Q_ASSERT(replaceIndex >= 0);
1035             int index = 1;
1036
1037             KFileItemList::const_iterator it = items.begin();
1038             const KFileItemList::const_iterator end = items.end();
1039             while (it != end) {
1040                 const KUrl& oldUrl = (*it).url();
1041                 QString number;
1042                 number.setNum(index++);
1043
1044                 QString name(newName);
1045                 name.replace(replaceIndex, 1, number);
1046
1047                 if (oldUrl.fileName() != name) {
1048                     KUrl newUrl = oldUrl;
1049                     newUrl.setFileName(name);
1050                     KonqOperations::rename(this, oldUrl, newUrl);
1051                     emit doingOperation(KonqFileUndoManager::RENAME);
1052                 }
1053                 ++it;
1054             }
1055         }
1056     } else {
1057         // Only one item has been selected for renaming. Use the custom
1058         // renaming mechanism from the views.
1059         Q_ASSERT(items.count() == 1);
1060
1061         // TODO: Think about using KFileItemDelegate as soon as it supports editing.
1062         // Currently the RenameDialog is used, but I'm not sure whether inline renaming
1063         // is a benefit for the user at all -> let's wait for some input first...
1064         RenameDialog dialog(this, items);
1065         if (dialog.exec() == QDialog::Rejected) {
1066             return;
1067         }
1068
1069         const QString& newName = dialog.newName();
1070         if (newName.isEmpty()) {
1071             emit errorMessage(dialog.errorString());
1072         } else {
1073             const KUrl& oldUrl = items.first().url();
1074             KUrl newUrl = oldUrl;
1075             newUrl.setFileName(newName);
1076             KonqOperations::rename(this, oldUrl, newUrl);
1077             emit doingOperation(KonqFileUndoManager::RENAME);
1078         }
1079     }
1080 }
1081
1082 void DolphinView::trashSelectedItems()
1083 {
1084     emit doingOperation(KonqFileUndoManager::TRASH);
1085     KonqOperations::del(this, KonqOperations::TRASH, selectedUrls());
1086 }
1087
1088 void DolphinView::deleteSelectedItems()
1089 {
1090     const KUrl::List list = selectedUrls();
1091     const bool del = KonqOperations::askDeleteConfirmation(list,
1092                      KonqOperations::DEL,
1093                      KonqOperations::DEFAULT_CONFIRMATION,
1094                      this);
1095
1096     if (del) {
1097         KIO::Job* job = KIO::del(list);
1098         connect(job, SIGNAL(result(KJob*)),
1099                 this, SLOT(slotDeleteFileFinished(KJob*)));
1100     }
1101 }
1102
1103 void DolphinView::slotDeleteFileFinished(KJob* job)
1104 {
1105     if (job->error() == 0) {
1106         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1107     } else {
1108         emit errorMessage(job->errorString());
1109     }
1110 }
1111
1112 void DolphinView::cutSelectedItems()
1113 {
1114     QMimeData* mimeData = new QMimeData();
1115     const KUrl::List kdeUrls = selectedUrls();
1116     const KUrl::List mostLocalUrls;
1117     KonqMimeData::populateMimeData(mimeData, kdeUrls, mostLocalUrls, true);
1118     QApplication::clipboard()->setMimeData(mimeData);
1119 }
1120
1121 void DolphinView::copySelectedItems()
1122 {
1123     QMimeData* mimeData = new QMimeData();
1124     const KUrl::List kdeUrls = selectedUrls();
1125     const KUrl::List mostLocalUrls;
1126     KonqMimeData::populateMimeData(mimeData, kdeUrls, mostLocalUrls, false);
1127     QApplication::clipboard()->setMimeData(mimeData);
1128 }
1129
1130 void DolphinView::paste()
1131 {
1132     QClipboard* clipboard = QApplication::clipboard();
1133     const QMimeData* mimeData = clipboard->mimeData();
1134
1135     const KUrl::List sourceUrls = KUrl::List::fromMimeData(mimeData);
1136
1137     // per default the pasting is done into the current Url of the view
1138     KUrl destUrl(url());
1139
1140     // check whether the pasting should be done into a selected directory
1141     const KUrl::List selectedUrls = this->selectedUrls();
1142     if (selectedUrls.count() == 1) {
1143         const KFileItem fileItem(S_IFDIR,
1144                                  KFileItem::Unknown,
1145                                  selectedUrls.first(),
1146                                  true);
1147         if (fileItem.isDir()) {
1148             // only one item is selected which is a directory, hence paste
1149             // into this directory
1150             destUrl = selectedUrls.first();
1151         }
1152     }
1153
1154     if (KonqMimeData::decodeIsCutSelection(mimeData)) {
1155         KonqOperations::copy(this, KonqOperations::MOVE, sourceUrls, destUrl);
1156         emit doingOperation(KonqFileUndoManager::MOVE);
1157         clipboard->clear();
1158     } else {
1159         KonqOperations::copy(this, KonqOperations::COPY, sourceUrls, destUrl);
1160         emit doingOperation(KonqFileUndoManager::COPY);
1161     }
1162 }
1163
1164 QPair<bool, QString> DolphinView::pasteInfo() const
1165 {
1166     QPair<bool, QString> ret;
1167     QClipboard* clipboard = QApplication::clipboard();
1168     const QMimeData* mimeData = clipboard->mimeData();
1169
1170     KUrl::List urls = KUrl::List::fromMimeData(mimeData);
1171     if (!urls.isEmpty()) {
1172         ret.first = true;
1173         ret.second = i18ncp("@action:inmenu", "Paste One File", "Paste %1 Files", urls.count());
1174     } else {
1175         ret.first = false;
1176         ret.second = i18nc("@action:inmenu", "Paste");
1177     }
1178
1179     if (ret.first) {
1180         const KUrl::List urls = selectedUrls();
1181         const uint count = urls.count();
1182         if (count > 1) {
1183             // pasting should not be allowed when more than one file
1184             // is selected
1185             ret.first = false;
1186         } else if (count == 1) {
1187             // Only one file is selected. Pasting is only allowed if this
1188             // file is a directory.
1189             // TODO: this doesn't work with remote protocols; instead we need a
1190             // m_activeViewContainer->selectedFileItems() to get the real KFileItems
1191             const KFileItem fileItem(S_IFDIR,
1192                                      KFileItem::Unknown,
1193                                      urls.first(),
1194                                      true);
1195             ret.first = fileItem.isDir();
1196         }
1197     }
1198     return ret;
1199 }
1200
1201 KAction* DolphinView::createRenameAction(KActionCollection* collection)
1202 {
1203     KAction* rename = collection->addAction("rename");
1204     rename->setText(i18nc("@action:inmenu File", "Rename..."));
1205     rename->setShortcut(Qt::Key_F2);
1206     return rename;
1207 }
1208
1209 KAction* DolphinView::createMoveToTrashAction(KActionCollection* collection)
1210 {
1211     KAction* moveToTrash = collection->addAction("move_to_trash");
1212     moveToTrash->setText(i18nc("@action:inmenu File", "Move to Trash"));
1213     moveToTrash->setIcon(KIcon("user-trash"));
1214     moveToTrash->setShortcut(QKeySequence::Delete);
1215     return moveToTrash;
1216 }
1217
1218 KAction* DolphinView::createDeleteAction(KActionCollection* collection)
1219 {
1220     KAction* deleteAction = collection->addAction("delete");
1221     deleteAction->setIcon(KIcon("edit-delete"));
1222     deleteAction->setText(i18nc("@action:inmenu File", "Delete"));
1223     deleteAction->setShortcut(Qt::SHIFT | Qt::Key_Delete);
1224     return deleteAction;
1225 }
1226
1227 #include "dolphinview.moc"