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 <kactioncollection.h>
  32 #include <kcolorscheme.h>
  33 #include <kdirlister.h>
  34 #include <kfileitemdelegate.h>
  35 #include <kiconeffect.h>
  36 #include <klocale.h>
  37 #include <kio/deletejob.h>
  38 #include <kio/netaccess.h>
  39 #include <kio/previewjob.h>
  40 #include <kjob.h>
  41 #include <kmenu.h>
  42 #include <kmessagebox.h>
  43 #include <kmimetyperesolver.h>
  44 #include <konq_operations.h>
  45 #include <konqmimedata.h>
  46 #include <ktoggleaction.h>
  47 #include <kurl.h>
  48
  49 #include "dolphindropcontroller.h"
  50 #include "dolphinmodel.h"
  51 #include "dolphincolumnview.h"
  52 #include "dolphincontroller.h"
  53 #include "dolphinsortfilterproxymodel.h"
  54 #include "dolphindetailsview.h"
  55 #include "dolphiniconsview.h"
  56 #include "dolphinsettings.h"
  57 #include "dolphin_generalsettings.h"
  58 #include "iconmanager.h"
  59 #include "renamedialog.h"
  60 #include "viewproperties.h"
  61
  62 DolphinView::DolphinView(QWidget* parent,
  63                          const KUrl& url,
  64                          KDirLister* dirLister,
  65                          DolphinModel* dolphinModel,
  66                          DolphinSortFilterProxyModel* proxyModel) :
  67     QWidget(parent),
  68     m_active(true),
  69     m_showPreview(false),
  70     m_loadingDirectory(false),
  71     m_storedCategorizedSorting(false),
  72     m_isContextMenuOpen(false),
  73     m_mode(DolphinView::IconsView),
  74     m_topLayout(0),
  75     m_controller(0),
  76     m_iconsView(0),
  77     m_detailsView(0),
  78     m_columnView(0),
  79     m_fileItemDelegate(0),
  80     m_selectionModel(0),
  81     m_dolphinModel(dolphinModel),
  82     m_dirLister(dirLister),
  83     m_proxyModel(proxyModel),
  84     m_iconManager(0)
  85 {
  86     setFocusPolicy(Qt::StrongFocus);
  87     m_topLayout = new QVBoxLayout(this);
  88     m_topLayout->setSpacing(0);
  89     m_topLayout->setMargin(0);
  90
  91     m_controller = new DolphinController(this);
  92     m_controller->setUrl(url);
  93
  94     // Receiver of the DolphinView signal 'urlChanged()' don't need
  95     // to care whether the internal controller changed the URL already or whether
  96     // the controller just requested an URL change and will be updated later.
  97     // In both cases the URL has been changed:
  98     connect(m_controller, SIGNAL(urlChanged(const KUrl&)),
  99             this, SIGNAL(urlChanged(const KUrl&)));
 100     connect(m_controller, SIGNAL(requestUrlChange(const KUrl&)),
 101             this, SIGNAL(urlChanged(const KUrl&)));
 102
 103     connect(m_controller, SIGNAL(requestContextMenu(const QPoint&)),
 104             this, SLOT(openContextMenu(const QPoint&)));
 105     connect(m_controller, SIGNAL(urlsDropped(const KUrl::List&, const KUrl&, const KFileItem&)),
 106             this, SLOT(dropUrls(const KUrl::List&, const KUrl&, const KFileItem&)));
 107     connect(m_controller, SIGNAL(sortingChanged(DolphinView::Sorting)),
 108             this, SLOT(updateSorting(DolphinView::Sorting)));
 109     connect(m_controller, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 110             this, SLOT(updateSortOrder(Qt::SortOrder)));
 111     connect(m_controller, SIGNAL(additionalInfoChanged(const KFileItemDelegate::InformationList&)),
 112             this, SLOT(updateAdditionalInfo(const KFileItemDelegate::InformationList&)));
 113     connect(m_controller, SIGNAL(itemTriggered(const KFileItem&)),
 114             this, SLOT(triggerItem(const KFileItem&)));
 115     connect(m_controller, SIGNAL(activated()),
 116             this, SLOT(activate()));
 117     connect(m_controller, SIGNAL(itemEntered(const KFileItem&)),
 118             this, SLOT(showHoverInformation(const KFileItem&)));
 119     connect(m_controller, SIGNAL(viewportEntered()),
 120             this, SLOT(clearHoverInformation()));
 121
 122     applyViewProperties(url);
 123     m_topLayout->addWidget(itemView());
 124
 125     if (DolphinSettings::instance().generalSettings()->showToolTips()) {
 126         // TODO: instantiate ToolTipManager here...
 127     }
 128 }
 129
 130 DolphinView::~DolphinView()
 131 {
 132 }
 133
 134 const KUrl& DolphinView::url() const
 135 {
 136     return m_controller->url();
 137 }
 138
 139 KUrl DolphinView::rootUrl() const
 140 {
 141     return isColumnViewActive() ? m_columnView->rootUrl() : url();
 142 }
 143
 144 void DolphinView::setActive(bool active)
 145 {
 146     if (active == m_active) {
 147         return;
 148     }
 149
 150     m_active = active;
 151     m_selectionModel->clearSelection();
 152
 153     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 154     if (active) {
 155         // TODO: emitting urlChanged() is a hack, as the URL hasn't really changed. It
 156         // bypasses the problem when having a split view and changing the active view to
 157         // update the some URL dependent states. A nicer approach should be no big deal...
 158         emit urlChanged(url());
 159         emit selectionChanged(selectedItems());
 160     } else {
 161         color.setAlpha(150);
 162     }
 163
 164     QWidget* viewport = itemView()->viewport();
 165     QPalette palette;
 166     palette.setColor(viewport->backgroundRole(), color);
 167     viewport->setPalette(palette);
 168
 169     update();
 170
 171     if (active) {
 172         emit activated();
 173     }
 174
 175     m_controller->indicateActivationChange(active);
 176 }
 177
 178 bool DolphinView::isActive() const
 179 {
 180     return m_active;
 181 }
 182
 183 void DolphinView::setMode(Mode mode)
 184 {
 185     if (mode == m_mode) {
 186         return; // the wished mode is already set
 187     }
 188
 189     m_mode = mode;
 190
 191     deleteView();
 192
 193     const KUrl viewPropsUrl = viewPropertiesUrl();
 194     ViewProperties props(viewPropsUrl);
 195     props.setViewMode(m_mode);
 196     createView();
 197
 198     // the file item delegate has been recreated, apply the current
 199     // additional information manually
 200     const KFileItemDelegate::InformationList infoList = props.additionalInfo();
 201     m_fileItemDelegate->setShowInformation(infoList);
 202     emit additionalInfoChanged();
 203
 204     // Not all view modes support categorized sorting. Adjust the sorting model
 205     // if changing the view mode results in a change of the categorized sorting
 206     // capabilities.
 207     m_storedCategorizedSorting = props.categorizedSorting();
 208     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 209     if (categorized != m_proxyModel->isCategorizedModel()) {
 210         m_proxyModel->setCategorizedModel(categorized);
 211         emit categorizedSortingChanged();
 212     }
 213
 214     emit modeChanged();
 215 }
 216
 217 DolphinView::Mode DolphinView::mode() const
 218 {
 219     return m_mode;
 220 }
 221
 222 bool DolphinView::showPreview() const
 223 {
 224     return m_showPreview;
 225 }
 226
 227 bool DolphinView::showHiddenFiles() const
 228 {
 229     return m_dirLister->showingDotFiles();
 230 }
 231
 232 bool DolphinView::categorizedSorting() const
 233 {
 234     // If all view modes would support categorized sorting, returning
 235     // m_proxyModel->isCategorizedModel() would be the way to go. As
 236     // currently only the icons view supports caterized sorting, we remember
 237     // the stored view properties state in m_storedCategorizedSorting and
 238     // return this state. The application takes care to disable the corresponding
 239     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 240     // that this setting is not applied to the current view mode.
 241     return m_storedCategorizedSorting;
 242 }
 243
 244 bool DolphinView::supportsCategorizedSorting() const
 245 {
 246     return m_iconsView != 0;
 247 }
 248
 249 void DolphinView::selectAll()
 250 {
 251     QAbstractItemView* view = itemView();
 252     // TODO: there seems to be a bug in QAbstractItemView::selectAll(); if
 253     // the Ctrl-key is pressed (e. g. for Ctrl+A), selectAll() inverts the
 254     // selection instead of selecting all items. This is bypassed for KDE 4.0
 255     // by invoking clearSelection() first.
 256     view->clearSelection();
 257     view->selectAll();
 258 }
 259
 260 void DolphinView::invertSelection()
 261 {
 262     if (isColumnViewActive()) {
 263         // QAbstractItemView does not offer a virtual method invertSelection()
 264         // as counterpart to QAbstractItemView::selectAll(). This makes it
 265         // necessary to delegate the inverting of the selection to the
 266         // column view, as only the selection of the active column should
 267         // get inverted.
 268         m_columnView->invertSelection();
 269     } else {
 270         QItemSelectionModel* selectionModel = itemView()->selectionModel();
 271         const QAbstractItemModel* itemModel = selectionModel->model();
 272
 273         const QModelIndex topLeft = itemModel->index(0, 0);
 274         const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 275                                                          itemModel->columnCount() - 1);
 276
 277         const QItemSelection selection(topLeft, bottomRight);
 278         selectionModel->select(selection, QItemSelectionModel::Toggle);
 279     }
 280 }
 281
 282 bool DolphinView::hasSelection() const
 283 {
 284     return itemView()->selectionModel()->hasSelection();
 285 }
 286
 287 void DolphinView::clearSelection()
 288 {
 289     itemView()->selectionModel()->clear();
 290 }
 291
 292 KFileItemList DolphinView::selectedItems() const
 293 {
 294     const QAbstractItemView* view = itemView();
 295
 296     // Our view has a selection, we will map them back to the DolphinModel
 297     // and then fill the KFileItemList.
 298     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 299
 300     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 301     KFileItemList itemList;
 302
 303     const QModelIndexList indexList = selection.indexes();
 304     foreach (QModelIndex index, indexList) {
 305         KFileItem item = m_dolphinModel->itemForIndex(index);
 306         if (!item.isNull()) {
 307             itemList.append(item);
 308         }
 309     }
 310
 311     return itemList;
 312 }
 313
 314 KUrl::List DolphinView::selectedUrls() const
 315 {
 316     KUrl::List urls;
 317     const KFileItemList list = selectedItems();
 318     foreach (KFileItem item, list) {
 319         urls.append(item.url());
 320     }
 321     return urls;
 322 }
 323
 324 KFileItem DolphinView::fileItem(const QModelIndex& index) const
 325 {
 326     const QModelIndex dolphinModelIndex = m_proxyModel->mapToSource(index);
 327     return m_dolphinModel->itemForIndex(dolphinModelIndex);
 328 }
 329
 330 void DolphinView::setContentsPosition(int x, int y)
 331 {
 332     QAbstractItemView* view = itemView();
 333
 334     // the ColumnView takes care itself for the horizontal scrolling
 335     if (!isColumnViewActive()) {
 336         view->horizontalScrollBar()->setValue(x);
 337     }
 338     view->verticalScrollBar()->setValue(y);
 339
 340     m_loadingDirectory = false;
 341 }
 342
 343 QPoint DolphinView::contentsPosition() const
 344 {
 345     const int x = itemView()->horizontalScrollBar()->value();
 346     const int y = itemView()->verticalScrollBar()->value();
 347     return QPoint(x, y);
 348 }
 349
 350 void DolphinView::zoomIn()
 351 {
 352     m_controller->triggerZoomIn();
 353     m_iconManager->updatePreviews();
 354 }
 355
 356 void DolphinView::zoomOut()
 357 {
 358     m_controller->triggerZoomOut();
 359     m_iconManager->updatePreviews();
 360 }
 361
 362 bool DolphinView::isZoomInPossible() const
 363 {
 364     return m_controller->isZoomInPossible();
 365 }
 366
 367 bool DolphinView::isZoomOutPossible() const
 368 {
 369     return m_controller->isZoomOutPossible();
 370 }
 371
 372 void DolphinView::setSorting(Sorting sorting)
 373 {
 374     if (sorting != this->sorting()) {
 375         updateSorting(sorting);
 376     }
 377 }
 378
 379 DolphinView::Sorting DolphinView::sorting() const
 380 {
 381     return m_proxyModel->sorting();
 382 }
 383
 384 void DolphinView::setSortOrder(Qt::SortOrder order)
 385 {
 386     if (sortOrder() != order) {
 387         updateSortOrder(order);
 388     }
 389 }
 390
 391 Qt::SortOrder DolphinView::sortOrder() const
 392 {
 393     return m_proxyModel->sortOrder();
 394 }
 395
 396 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 397 {
 398     const KUrl viewPropsUrl = viewPropertiesUrl();
 399     ViewProperties props(viewPropsUrl);
 400     props.setAdditionalInfo(info);
 401     m_fileItemDelegate->setShowInformation(info);
 402
 403     emit additionalInfoChanged();
 404
 405     if (itemView() != m_detailsView) {
 406         // the details view requires no reloading of the directory, as it maps
 407         // the file item delegate info to its columns internally
 408         loadDirectory(viewPropsUrl);
 409     }
 410 }
 411
 412 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 413 {
 414     return m_fileItemDelegate->showInformation();
 415 }
 416
 417 void DolphinView::reload()
 418 {
 419     setUrl(url());
 420     loadDirectory(url(), true);
 421 }
 422
 423 void DolphinView::refresh()
 424 {
 425     const bool oldActivationState = m_active;
 426     m_active = true;
 427
 428     createView();
 429     applyViewProperties(m_controller->url());
 430     reload();
 431
 432     setActive(oldActivationState);
 433 }
 434
 435 void DolphinView::updateView(const KUrl& url, const KUrl& rootUrl)
 436 {
 437     if (m_controller->url() == url) {
 438         return;
 439     }
 440
 441     m_controller->setUrl(url); // emits urlChanged, which we forward
 442
 443     if (!rootUrl.isEmpty() && rootUrl.isParentOf(url)) {
 444         applyViewProperties(rootUrl);
 445         loadDirectory(rootUrl);
 446         if (itemView() == m_columnView) {
 447             m_columnView->setRootUrl(rootUrl);
 448             m_columnView->showColumn(url);
 449         }
 450     } else {
 451         applyViewProperties(url);
 452         loadDirectory(url);
 453     }
 454
 455     emit startedPathLoading(url);
 456 }
 457
 458 void DolphinView::setNameFilter(const QString& nameFilter)
 459 {
 460     m_proxyModel->setFilterRegExp(nameFilter);
 461
 462     if (isColumnViewActive()) {
 463         // adjusting the directory lister is not enough in the case of the
 464         // column view, as each column has its own directory lister internally...
 465         m_columnView->setNameFilter(nameFilter);
 466     }
 467 }
 468
 469 void DolphinView::calculateItemCount(int& fileCount, int& folderCount)
 470 {
 471     foreach (KFileItem item, m_dirLister->items()) {
 472         if (item.isDir()) {
 473             ++folderCount;
 474         } else {
 475             ++fileCount;
 476         }
 477     }
 478 }
 479
 480 void DolphinView::setUrl(const KUrl& url)
 481 {
 482     updateView(url, KUrl());
 483 }
 484
 485 void DolphinView::changeSelection(const KFileItemList& selection)
 486 {
 487     clearSelection();
 488     if (selection.isEmpty()) {
 489         return;
 490     }
 491     const KUrl& baseUrl = url();
 492     KUrl url;
 493     QItemSelection new_selection;
 494     foreach(const KFileItem& item, selection) {
 495         url = item.url().upUrl();
 496         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 497             QModelIndex index = m_proxyModel->mapFromSource(m_dolphinModel->indexForItem(item));
 498             new_selection.select(index, index);
 499         }
 500     }
 501     itemView()->selectionModel()->select(new_selection,
 502                                          QItemSelectionModel::ClearAndSelect
 503                                          | QItemSelectionModel::Current);
 504 }
 505
 506 void DolphinView::renameSelectedItems()
 507 {
 508     const KFileItemList items = selectedItems();
 509     if (items.count() > 1) {
 510         // More than one item has been selected for renaming. Open
 511         // a rename dialog and rename all items afterwards.
 512         RenameDialog dialog(this, items);
 513         if (dialog.exec() == QDialog::Rejected) {
 514             return;
 515         }
 516
 517         const QString newName = dialog.newName();
 518         if (newName.isEmpty()) {
 519             emit errorMessage(dialog.errorString());
 520         } else {
 521             // TODO: check how this can be integrated into KonqFileUndoManager/KonqOperations
 522             // as one operation instead of n rename operations like it is done now...
 523             Q_ASSERT(newName.contains('#'));
 524
 525             // iterate through all selected items and rename them...
 526             int index = 1;
 527             foreach (KFileItem item, items) {
 528                 const KUrl& oldUrl = item.url();
 529                 QString number;
 530                 number.setNum(index++);
 531
 532                 QString name = newName;
 533                 name.replace('#', number);
 534
 535                 if (oldUrl.fileName() != name) {
 536                     KUrl newUrl = oldUrl;
 537                     newUrl.setFileName(name);
 538                     KonqOperations::rename(this, oldUrl, newUrl);
 539                     emit doingOperation(KonqFileUndoManager::RENAME);
 540                 }
 541             }
 542         }
 543     } else if (DolphinSettings::instance().generalSettings()->renameInline()) {
 544         Q_ASSERT(items.count() == 1);
 545
 546         if (isColumnViewActive()) {
 547             m_columnView->editItem(items.first());
 548         } else {
 549             const QModelIndex dirIndex = m_dolphinModel->indexForItem(items.first());
 550             const QModelIndex proxyIndex = m_proxyModel->mapFromSource(dirIndex);
 551             itemView()->edit(proxyIndex);
 552         }
 553     } else {
 554         Q_ASSERT(items.count() == 1);
 555
 556         RenameDialog dialog(this, items);
 557         if (dialog.exec() == QDialog::Rejected) {
 558             return;
 559         }
 560
 561         const QString& newName = dialog.newName();
 562         if (newName.isEmpty()) {
 563             emit errorMessage(dialog.errorString());
 564         } else {
 565             const KUrl& oldUrl = items.first().url();
 566             KUrl newUrl = oldUrl;
 567             newUrl.setFileName(newName);
 568             KonqOperations::rename(this, oldUrl, newUrl);
 569             emit doingOperation(KonqFileUndoManager::RENAME);
 570         }
 571     }
 572 }
 573
 574 void DolphinView::trashSelectedItems()
 575 {
 576     emit doingOperation(KonqFileUndoManager::TRASH);
 577     KonqOperations::del(this, KonqOperations::TRASH, selectedUrls());
 578 }
 579
 580 void DolphinView::deleteSelectedItems()
 581 {
 582     const KUrl::List list = selectedUrls();
 583     const bool del = KonqOperations::askDeleteConfirmation(list,
 584                      KonqOperations::DEL,
 585                      KonqOperations::DEFAULT_CONFIRMATION,
 586                      this);
 587
 588     if (del) {
 589         KIO::Job* job = KIO::del(list);
 590         connect(job, SIGNAL(result(KJob*)),
 591                 this, SLOT(slotDeleteFileFinished(KJob*)));
 592     }
 593 }
 594
 595 void DolphinView::cutSelectedItems()
 596 {
 597     QMimeData* mimeData = new QMimeData();
 598     const KUrl::List kdeUrls = selectedUrls();
 599     const KUrl::List mostLocalUrls;
 600     KonqMimeData::populateMimeData(mimeData, kdeUrls, mostLocalUrls, true);
 601     QApplication::clipboard()->setMimeData(mimeData);
 602 }
 603
 604 void DolphinView::copySelectedItems()
 605 {
 606     QMimeData* mimeData = new QMimeData();
 607     const KUrl::List kdeUrls = selectedUrls();
 608     const KUrl::List mostLocalUrls;
 609     KonqMimeData::populateMimeData(mimeData, kdeUrls, mostLocalUrls, false);
 610     QApplication::clipboard()->setMimeData(mimeData);
 611 }
 612
 613 void DolphinView::paste()
 614 {
 615     pasteToUrl(url());
 616 }
 617
 618 void DolphinView::pasteIntoFolder()
 619 {
 620     const KFileItemList items = selectedItems();
 621     if ((items.count() == 1) && items.first().isDir()) {
 622         pasteToUrl(items.first().url());
 623     }
 624 }
 625
 626 void DolphinView::setShowPreview(bool show)
 627 {
 628     if (m_showPreview == show) {
 629         return;
 630     }
 631
 632     const KUrl viewPropsUrl = viewPropertiesUrl();
 633     ViewProperties props(viewPropsUrl);
 634     props.setShowPreview(show);
 635
 636     m_showPreview = show;
 637     m_iconManager->setShowPreview(show);
 638     emit showPreviewChanged();
 639
 640     loadDirectory(viewPropsUrl);
 641 }
 642
 643 void DolphinView::setShowHiddenFiles(bool show)
 644 {
 645     if (m_dirLister->showingDotFiles() == show) {
 646         return;
 647     }
 648
 649     const KUrl viewPropsUrl = viewPropertiesUrl();
 650     ViewProperties props(viewPropsUrl);
 651     props.setShowHiddenFiles(show);
 652
 653     m_dirLister->setShowingDotFiles(show);
 654     emit showHiddenFilesChanged();
 655
 656     loadDirectory(viewPropsUrl);
 657 }
 658
 659 void DolphinView::setCategorizedSorting(bool categorized)
 660 {
 661     if (categorized == categorizedSorting()) {
 662         return;
 663     }
 664
 665     // setCategorizedSorting(true) may only get invoked
 666     // if the view supports categorized sorting
 667     Q_ASSERT(!categorized || supportsCategorizedSorting());
 668
 669     ViewProperties props(viewPropertiesUrl());
 670     props.setCategorizedSorting(categorized);
 671     props.save();
 672
 673     m_storedCategorizedSorting = categorized;
 674     m_proxyModel->setCategorizedModel(categorized);
 675
 676     emit categorizedSortingChanged();
 677 }
 678
 679 void DolphinView::toggleSortOrder()
 680 {
 681     const Qt::SortOrder order = (sortOrder() == Qt::AscendingOrder) ?
 682                                 Qt::DescendingOrder :
 683                                 Qt::AscendingOrder;
 684     setSortOrder(order);
 685 }
 686
 687 void DolphinView::toggleAdditionalInfo(QAction* action)
 688 {
 689     const KFileItemDelegate::Information info =
 690         static_cast<KFileItemDelegate::Information>(action->data().toInt());
 691
 692     KFileItemDelegate::InformationList list = additionalInfo();
 693
 694     const bool show = action->isChecked();
 695
 696     const int index = list.indexOf(info);
 697     const bool containsInfo = (index >= 0);
 698     if (show && !containsInfo) {
 699         list.append(info);
 700         setAdditionalInfo(list);
 701     } else if (!show && containsInfo) {
 702         list.removeAt(index);
 703         setAdditionalInfo(list);
 704         Q_ASSERT(list.indexOf(info) < 0);
 705     }
 706 }
 707
 708
 709 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 710 {
 711     QWidget::mouseReleaseEvent(event);
 712     setActive(true);
 713 }
 714
 715 void DolphinView::wheelEvent(QWheelEvent* event)
 716 {
 717     if (event->modifiers() & Qt::ControlModifier) {
 718         const int delta = event->delta();
 719         if ((delta > 0) && isZoomInPossible()) {
 720             zoomIn();
 721         } else if ((delta < 0) && isZoomOutPossible()) {
 722             zoomOut();
 723         }
 724         event->accept();
 725     }
 726 }
 727
 728 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 729 {
 730     if ((watched == itemView()) && (event->type() == QEvent::FocusIn)) {
 731         m_controller->requestActivation();
 732     }
 733
 734     return QWidget::eventFilter(watched, event);
 735 }
 736
 737 void DolphinView::activate()
 738 {
 739     setActive(true);
 740 }
 741
 742 void DolphinView::triggerItem(const KFileItem& item)
 743 {
 744     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 745     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 746         // items are selected by the user, hence don't trigger the
 747         // item specified by 'index'
 748         return;
 749     }
 750
 751     // TODO: the m_isContextMenuOpen check is a workaround for Qt-issue xxxxxx
 752     if (item.isNull() || m_isContextMenuOpen) {
 753         return;
 754     }
 755
 756     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 757 }
 758
 759 void DolphinView::emitSelectionChangedSignal()
 760 {
 761     emit selectionChanged(DolphinView::selectedItems());
 762 }
 763
 764 void DolphinView::openContextMenu(const QPoint& pos)
 765 {
 766     KFileItem item;
 767
 768     const QModelIndex index = itemView()->indexAt(pos);
 769     if (index.isValid() && (index.column() == DolphinModel::Name)) {
 770         item = fileItem(index);
 771     }
 772
 773     m_isContextMenuOpen = true; // TODO: workaround for Qt-issue xxxxxx
 774     emit requestContextMenu(item, url());
 775     m_isContextMenuOpen = false;
 776 }
 777
 778 void DolphinView::dropUrls(const KUrl::List& urls,
 779                            const KUrl& destPath,
 780                            const KFileItem& destItem)
 781 {
 782     Q_ASSERT(!urls.isEmpty());
 783     const KUrl& destination = !destItem.isNull() && destItem.isDir() ?
 784                               destItem.url() : destPath;
 785     const KUrl sourceDir = KUrl(urls.first().directory());
 786     if (sourceDir != destination) {
 787         dropUrls(urls, destination);
 788     }
 789 }
 790
 791 void DolphinView::dropUrls(const KUrl::List& urls,
 792                            const KUrl& destination)
 793 {
 794     DolphinDropController dropController(this);
 795     // forward doingOperation signal up to the mainwindow
 796     connect(&dropController, SIGNAL(doingOperation(KonqFileUndoManager::CommandType)),
 797             this, SIGNAL(doingOperation(KonqFileUndoManager::CommandType)));
 798     dropController.dropUrls(urls, destination);
 799 }
 800
 801 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 802 {
 803     ViewProperties props(viewPropertiesUrl());
 804     props.setSorting(sorting);
 805
 806     m_proxyModel->setSorting(sorting);
 807
 808     emit sortingChanged(sorting);
 809 }
 810
 811 void DolphinView::updateSortOrder(Qt::SortOrder order)
 812 {
 813     ViewProperties props(viewPropertiesUrl());
 814     props.setSortOrder(order);
 815
 816     m_proxyModel->setSortOrder(order);
 817
 818     emit sortOrderChanged(order);
 819 }
 820
 821 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 822 {
 823     ViewProperties props(viewPropertiesUrl());
 824     props.setAdditionalInfo(info);
 825     props.save();
 826
 827     m_fileItemDelegate->setShowInformation(info);
 828
 829     emit additionalInfoChanged();
 830 }
 831
 832 void DolphinView::updateAdditionalInfoActions(KActionCollection* collection)
 833 {
 834     const bool enable = (m_mode == DolphinView::DetailsView) ||
 835                         (m_mode == DolphinView::IconsView);
 836
 837     QAction* showSizeInfo = collection->action("show_size_info");
 838     QAction* showDateInfo = collection->action("show_date_info");
 839     QAction* showPermissionsInfo = collection->action("show_permissions_info");
 840     QAction* showOwnerInfo = collection->action("show_owner_info");
 841     QAction* showGroupInfo = collection->action("show_group_info");
 842     QAction* showMimeInfo = collection->action("show_mime_info");
 843
 844     showSizeInfo->setChecked(false);
 845     showDateInfo->setChecked(false);
 846     showPermissionsInfo->setChecked(false);
 847     showOwnerInfo->setChecked(false);
 848     showGroupInfo->setChecked(false);
 849     showMimeInfo->setChecked(false);
 850
 851     showSizeInfo->setEnabled(enable);
 852     showDateInfo->setEnabled(enable);
 853     showPermissionsInfo->setEnabled(enable);
 854     showOwnerInfo->setEnabled(enable);
 855     showGroupInfo->setEnabled(enable);
 856     showMimeInfo->setEnabled(enable);
 857
 858     foreach (KFileItemDelegate::Information info, m_fileItemDelegate->showInformation()) {
 859         switch (info) {
 860         case KFileItemDelegate::Size:
 861             showSizeInfo->setChecked(true);
 862             break;
 863         case KFileItemDelegate::ModificationTime:
 864             showDateInfo->setChecked(true);
 865             break;
 866         case KFileItemDelegate::Permissions:
 867             showPermissionsInfo->setChecked(true);
 868             break;
 869         case KFileItemDelegate::Owner:
 870             showOwnerInfo->setChecked(true);
 871             break;
 872         case KFileItemDelegate::OwnerAndGroup:
 873             showGroupInfo->setChecked(true);
 874             break;
 875         case KFileItemDelegate::FriendlyMimeType:
 876             showMimeInfo->setChecked(true);
 877             break;
 878         default:
 879             break;
 880         }
 881     }
 882 }
 883
 884 QPair<bool, QString> DolphinView::pasteInfo() const
 885 {
 886     QPair<bool, QString> ret;
 887     QClipboard* clipboard = QApplication::clipboard();
 888     const QMimeData* mimeData = clipboard->mimeData();
 889
 890     KUrl::List urls = KUrl::List::fromMimeData(mimeData);
 891     if (!urls.isEmpty()) {
 892         ret.first = true;
 893         if (urls.count() == 1) {
 894             const KFileItem item(KFileItem::Unknown, KFileItem::Unknown, urls.first(), true);
 895             ret.second = item.isDir() ? i18nc("@action:inmenu", "Paste One Folder") :
 896                                         i18nc("@action:inmenu", "Paste One File");
 897
 898         } else {
 899             ret.second = i18ncp("@action:inmenu", "Paste One Item", "Paste %1 Items", urls.count());
 900         }
 901     } else {
 902         ret.first = false;
 903         ret.second = i18nc("@action:inmenu", "Paste");
 904     }
 905
 906     return ret;
 907 }
 908
 909 void DolphinView::emitContentsMoved()
 910 {
 911     // only emit the contents moved signal if:
 912     // - no directory loading is ongoing (this would reset the contents position
 913     //   always to (0, 0))
 914     // - if the Column View is active: the column view does an automatic
 915     //   positioning during the loading operation, which must be remembered
 916     if (!m_loadingDirectory || isColumnViewActive()) {
 917         const QPoint pos(contentsPosition());
 918         emit contentsMoved(pos.x(), pos.y());
 919     }
 920 }
 921
 922 void DolphinView::showHoverInformation(const KFileItem& item)
 923 {
 924     emit requestItemInfo(item);
 925 }
 926
 927 void DolphinView::clearHoverInformation()
 928 {
 929     emit requestItemInfo(KFileItem());
 930 }
 931
 932 void DolphinView::slotDeleteFileFinished(KJob* job)
 933 {
 934     if (job->error() == 0) {
 935         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
 936     } else {
 937         emit errorMessage(job->errorString());
 938     }
 939 }
 940
 941 void DolphinView::loadDirectory(const KUrl& url, bool reload)
 942 {
 943     if (!url.isValid()) {
 944         const QString location(url.pathOrUrl());
 945         if (location.isEmpty()) {
 946             emit errorMessage(i18nc("@info:status", "The location is empty."));
 947         } else {
 948             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
 949         }
 950         return;
 951     }
 952
 953     m_loadingDirectory = true;
 954
 955     m_dirLister->stop();
 956     m_dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
 957
 958     if (isColumnViewActive()) {
 959         // adjusting the directory lister is not enough in the case of the
 960         // column view, as each column has its own directory lister internally...
 961         if (reload) {
 962             m_columnView->reload();
 963         } else {
 964             m_columnView->showColumn(url);
 965         }
 966     }
 967 }
 968
 969 KUrl DolphinView::viewPropertiesUrl() const
 970 {
 971     if (isColumnViewActive()) {
 972         return m_columnView->rootUrl();
 973     }
 974
 975     return url();
 976 }
 977
 978 void DolphinView::applyViewProperties(const KUrl& url)
 979 {
 980     if (isColumnViewActive() && rootUrl().isParentOf(url)) {
 981         // The column view is active, hence don't apply the view properties
 982         // of sub directories (represented by columns) to the view. The
 983         // view always represents the properties of the first column.
 984         return;
 985     }
 986
 987     const ViewProperties props(url);
 988
 989     const Mode mode = props.viewMode();
 990     if (m_mode != mode) {
 991         m_mode = mode;
 992         createView();
 993         emit modeChanged();
 994     }
 995     if (itemView() == 0) {
 996         createView();
 997     }
 998     Q_ASSERT(itemView() != 0);
 999     Q_ASSERT(m_fileItemDelegate != 0);
1000
1001     const bool showHiddenFiles = props.showHiddenFiles();
1002     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
1003         m_dirLister->setShowingDotFiles(showHiddenFiles);
1004         emit showHiddenFilesChanged();
1005     }
1006
1007     m_storedCategorizedSorting = props.categorizedSorting();
1008     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1009     if (categorized != m_proxyModel->isCategorizedModel()) {
1010         m_proxyModel->setCategorizedModel(categorized);
1011         emit categorizedSortingChanged();
1012     }
1013
1014     const DolphinView::Sorting sorting = props.sorting();
1015     if (sorting != m_proxyModel->sorting()) {
1016         m_proxyModel->setSorting(sorting);
1017         emit sortingChanged(sorting);
1018     }
1019
1020     const Qt::SortOrder sortOrder = props.sortOrder();
1021     if (sortOrder != m_proxyModel->sortOrder()) {
1022         m_proxyModel->setSortOrder(sortOrder);
1023         emit sortOrderChanged(sortOrder);
1024     }
1025
1026     KFileItemDelegate::InformationList info = props.additionalInfo();
1027     if (info != m_fileItemDelegate->showInformation()) {
1028         m_fileItemDelegate->setShowInformation(info);
1029         emit additionalInfoChanged();
1030     }
1031
1032     const bool showPreview = props.showPreview();
1033     if (showPreview != m_showPreview) {
1034         m_showPreview = showPreview;
1035         m_iconManager->setShowPreview(showPreview);
1036         emit showPreviewChanged();
1037     }
1038 }
1039
1040 void DolphinView::createView()
1041 {
1042     deleteView();
1043     Q_ASSERT(m_iconsView == 0);
1044     Q_ASSERT(m_detailsView == 0);
1045     Q_ASSERT(m_columnView == 0);
1046
1047     QAbstractItemView* view = 0;
1048     switch (m_mode) {
1049     case IconsView: {
1050         m_iconsView = new DolphinIconsView(this, m_controller);
1051         view = m_iconsView;
1052         break;
1053     }
1054
1055     case DetailsView:
1056         m_detailsView = new DolphinDetailsView(this, m_controller);
1057         view = m_detailsView;
1058         break;
1059
1060     case ColumnView:
1061         m_columnView = new DolphinColumnView(this, m_controller);
1062         view = m_columnView;
1063         break;
1064     }
1065
1066     Q_ASSERT(view != 0);
1067     view->installEventFilter(this);
1068
1069     m_controller->setItemView(view);
1070
1071     m_fileItemDelegate = new KFileItemDelegate(view);
1072     view->setItemDelegate(m_fileItemDelegate);
1073
1074     view->setModel(m_proxyModel);
1075     if (m_selectionModel != 0) {
1076         view->setSelectionModel(m_selectionModel);
1077     } else {
1078         m_selectionModel = view->selectionModel();
1079     }
1080
1081     // reparent the selection model, as it should not be deleted
1082     // when deleting the model
1083     m_selectionModel->setParent(this);
1084
1085     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
1086
1087     new KMimeTypeResolver(view, m_dolphinModel);
1088     m_iconManager = new IconManager(view, m_proxyModel);
1089     m_iconManager->setShowPreview(m_showPreview);
1090
1091     m_topLayout->insertWidget(1, view);
1092
1093     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
1094             this, SLOT(emitSelectionChangedSignal()));
1095     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
1096             this, SLOT(emitContentsMoved()));
1097     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
1098             this, SLOT(emitContentsMoved()));
1099 }
1100
1101 void DolphinView::deleteView()
1102 {
1103     QAbstractItemView* view = itemView();
1104     if (view != 0) {
1105         m_topLayout->removeWidget(view);
1106         view->close();
1107         view->deleteLater();
1108         view = 0;
1109         m_iconsView = 0;
1110         m_detailsView = 0;
1111         m_columnView = 0;
1112         m_fileItemDelegate = 0;
1113         m_iconManager = 0;
1114     }
1115 }
1116
1117 QAbstractItemView* DolphinView::itemView() const
1118 {
1119     if (m_detailsView != 0) {
1120         return m_detailsView;
1121     } else if (m_columnView != 0) {
1122         return m_columnView;
1123     }
1124
1125     return m_iconsView;
1126 }
1127
1128 bool DolphinView::isCutItem(const KFileItem& item) const
1129 {
1130     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
1131     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
1132
1133     const KUrl& itemUrl = item.url();
1134     KUrl::List::const_iterator it = cutUrls.begin();
1135     const KUrl::List::const_iterator end = cutUrls.end();
1136     while (it != end) {
1137         if (*it == itemUrl) {
1138             return true;
1139         }
1140         ++it;
1141     }
1142
1143     return false;
1144 }
1145
1146 void DolphinView::pasteToUrl(const KUrl& url)
1147 {
1148     QClipboard* clipboard = QApplication::clipboard();
1149     const QMimeData* mimeData = clipboard->mimeData();
1150
1151     const KUrl::List sourceUrls = KUrl::List::fromMimeData(mimeData);
1152     if (KonqMimeData::decodeIsCutSelection(mimeData)) {
1153         KonqOperations::copy(this, KonqOperations::MOVE, sourceUrls, url);
1154         emit doingOperation(KonqFileUndoManager::MOVE);
1155         clipboard->clear();
1156     } else {
1157         KonqOperations::copy(this, KonqOperations::COPY, sourceUrls, url);
1158         emit doingOperation(KonqFileUndoManager::COPY);
1159     }
1160 }
1161
1162 #include "dolphinview.moc"