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