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 "tooltipmanager.h"
  61 #include "viewproperties.h"
  62
  63 DolphinView::DolphinView(QWidget* parent,
  64                          const KUrl& url,
  65                          KDirLister* dirLister,
  66                          DolphinModel* dolphinModel,
  67                          DolphinSortFilterProxyModel* proxyModel) :
  68     QWidget(parent),
  69     m_active(true),
  70     m_showPreview(false),
  71     m_loadingDirectory(false),
  72     m_storedCategorizedSorting(false),
  73     m_isContextMenuOpen(false),
  74     m_mode(DolphinView::IconsView),
  75     m_topLayout(0),
  76     m_controller(0),
  77     m_iconsView(0),
  78     m_detailsView(0),
  79     m_columnView(0),
  80     m_fileItemDelegate(0),
  81     m_selectionModel(0),
  82     m_dolphinModel(dolphinModel),
  83     m_dirLister(dirLister),
  84     m_proxyModel(proxyModel),
  85     m_iconManager(0)
  86 {
  87     setFocusPolicy(Qt::StrongFocus);
  88     m_topLayout = new QVBoxLayout(this);
  89     m_topLayout->setSpacing(0);
  90     m_topLayout->setMargin(0);
  91
  92     m_controller = new DolphinController(this);
  93     m_controller->setUrl(url);
  94
  95     // Receiver of the DolphinView signal 'urlChanged()' don't need
  96     // to care whether the internal controller changed the URL already or whether
  97     // the controller just requested an URL change and will be updated later.
  98     // In both cases the URL has been changed:
  99     connect(m_controller, SIGNAL(urlChanged(const KUrl&)),
 100             this, SIGNAL(urlChanged(const KUrl&)));
 101     connect(m_controller, SIGNAL(requestUrlChange(const KUrl&)),
 102             this, SIGNAL(urlChanged(const KUrl&)));
 103
 104     connect(m_controller, SIGNAL(requestContextMenu(const QPoint&)),
 105             this, SLOT(openContextMenu(const QPoint&)));
 106     connect(m_controller, SIGNAL(urlsDropped(const KUrl::List&, const KUrl&, const KFileItem&)),
 107             this, SLOT(dropUrls(const KUrl::List&, const KUrl&, const KFileItem&)));
 108     connect(m_controller, SIGNAL(sortingChanged(DolphinView::Sorting)),
 109             this, SLOT(updateSorting(DolphinView::Sorting)));
 110     connect(m_controller, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 111             this, SLOT(updateSortOrder(Qt::SortOrder)));
 112     connect(m_controller, SIGNAL(additionalInfoChanged(const KFileItemDelegate::InformationList&)),
 113             this, SLOT(updateAdditionalInfo(const KFileItemDelegate::InformationList&)));
 114     connect(m_controller, SIGNAL(itemTriggered(const KFileItem&)),
 115             this, SLOT(triggerItem(const KFileItem&)));
 116     connect(m_controller, SIGNAL(activated()),
 117             this, SLOT(activate()));
 118     connect(m_controller, SIGNAL(itemEntered(const KFileItem&)),
 119             this, SLOT(showHoverInformation(const KFileItem&)));
 120     connect(m_controller, SIGNAL(viewportEntered()),
 121             this, SLOT(clearHoverInformation()));
 122
 123     applyViewProperties(url);
 124     m_topLayout->addWidget(itemView());
 125 }
 126
 127 DolphinView::~DolphinView()
 128 {
 129 }
 130
 131 const KUrl& DolphinView::url() const
 132 {
 133     return m_controller->url();
 134 }
 135
 136 KUrl DolphinView::rootUrl() const
 137 {
 138     return isColumnViewActive() ? m_columnView->rootUrl() : url();
 139 }
 140
 141 void DolphinView::setActive(bool active)
 142 {
 143     if (active == m_active) {
 144         return;
 145     }
 146
 147     m_active = active;
 148     m_selectionModel->clearSelection();
 149
 150     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 151     if (active) {
 152         // TODO: emitting urlChanged() is a hack, as the URL hasn't really changed. It
 153         // bypasses the problem when having a split view and changing the active view to
 154         // update the some URL dependent states. A nicer approach should be no big deal...
 155         emit urlChanged(url());
 156         emit selectionChanged(selectedItems());
 157     } else {
 158         color.setAlpha(150);
 159     }
 160
 161     QWidget* viewport = itemView()->viewport();
 162     QPalette palette;
 163     palette.setColor(viewport->backgroundRole(), color);
 164     viewport->setPalette(palette);
 165
 166     update();
 167
 168     if (active) {
 169         emit activated();
 170     }
 171
 172     m_controller->indicateActivationChange(active);
 173 }
 174
 175 bool DolphinView::isActive() const
 176 {
 177     return m_active;
 178 }
 179
 180 void DolphinView::setMode(Mode mode)
 181 {
 182     if (mode == m_mode) {
 183         return; // the wished mode is already set
 184     }
 185
 186     m_mode = mode;
 187
 188     deleteView();
 189
 190     const KUrl viewPropsUrl = viewPropertiesUrl();
 191     ViewProperties props(viewPropsUrl);
 192     props.setViewMode(m_mode);
 193     createView();
 194
 195     // the file item delegate has been recreated, apply the current
 196     // additional information manually
 197     const KFileItemDelegate::InformationList infoList = props.additionalInfo();
 198     m_fileItemDelegate->setShowInformation(infoList);
 199     emit additionalInfoChanged();
 200
 201     // Not all view modes support categorized sorting. Adjust the sorting model
 202     // if changing the view mode results in a change of the categorized sorting
 203     // capabilities.
 204     m_storedCategorizedSorting = props.categorizedSorting();
 205     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 206     if (categorized != m_proxyModel->isCategorizedModel()) {
 207         m_proxyModel->setCategorizedModel(categorized);
 208         emit categorizedSortingChanged();
 209     }
 210
 211     emit modeChanged();
 212 }
 213
 214 DolphinView::Mode DolphinView::mode() const
 215 {
 216     return m_mode;
 217 }
 218
 219 bool DolphinView::showPreview() const
 220 {
 221     return m_showPreview;
 222 }
 223
 224 bool DolphinView::showHiddenFiles() const
 225 {
 226     return m_dirLister->showingDotFiles();
 227 }
 228
 229 bool DolphinView::categorizedSorting() const
 230 {
 231     // If all view modes would support categorized sorting, returning
 232     // m_proxyModel->isCategorizedModel() would be the way to go. As
 233     // currently only the icons view supports caterized sorting, we remember
 234     // the stored view properties state in m_storedCategorizedSorting and
 235     // return this state. The application takes care to disable the corresponding
 236     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 237     // that this setting is not applied to the current view mode.
 238     return m_storedCategorizedSorting;
 239 }
 240
 241 bool DolphinView::supportsCategorizedSorting() const
 242 {
 243     return m_iconsView != 0;
 244 }
 245
 246 void DolphinView::selectAll()
 247 {
 248     QAbstractItemView* view = itemView();
 249     // TODO: there seems to be a bug in QAbstractItemView::selectAll(); if
 250     // the Ctrl-key is pressed (e. g. for Ctrl+A), selectAll() inverts the
 251     // selection instead of selecting all items. This is bypassed for KDE 4.0
 252     // by invoking clearSelection() first.
 253     view->clearSelection();
 254     view->selectAll();
 255 }
 256
 257 void DolphinView::invertSelection()
 258 {
 259     if (isColumnViewActive()) {
 260         // QAbstractItemView does not offer a virtual method invertSelection()
 261         // as counterpart to QAbstractItemView::selectAll(). This makes it
 262         // necessary to delegate the inverting of the selection to the
 263         // column view, as only the selection of the active column should
 264         // get inverted.
 265         m_columnView->invertSelection();
 266     } else {
 267         QItemSelectionModel* selectionModel = itemView()->selectionModel();
 268         const QAbstractItemModel* itemModel = selectionModel->model();
 269
 270         const QModelIndex topLeft = itemModel->index(0, 0);
 271         const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 272                                                          itemModel->columnCount() - 1);
 273
 274         const QItemSelection selection(topLeft, bottomRight);
 275         selectionModel->select(selection, QItemSelectionModel::Toggle);
 276     }
 277 }
 278
 279 bool DolphinView::hasSelection() const
 280 {
 281     return itemView()->selectionModel()->hasSelection();
 282 }
 283
 284 void DolphinView::clearSelection()
 285 {
 286     itemView()->selectionModel()->clear();
 287 }
 288
 289 KFileItemList DolphinView::selectedItems() const
 290 {
 291     const QAbstractItemView* view = itemView();
 292
 293     // Our view has a selection, we will map them back to the DolphinModel
 294     // and then fill the KFileItemList.
 295     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 296
 297     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 298     KFileItemList itemList;
 299
 300     const QModelIndexList indexList = selection.indexes();
 301     foreach (QModelIndex index, indexList) {
 302         KFileItem item = m_dolphinModel->itemForIndex(index);
 303         if (!item.isNull()) {
 304             itemList.append(item);
 305         }
 306     }
 307
 308     return itemList;
 309 }
 310
 311 KUrl::List DolphinView::selectedUrls() const
 312 {
 313     KUrl::List urls;
 314     const KFileItemList list = selectedItems();
 315     foreach (KFileItem item, list) {
 316         urls.append(item.url());
 317     }
 318     return urls;
 319 }
 320
 321 KFileItem DolphinView::fileItem(const QModelIndex& index) const
 322 {
 323     const QModelIndex dolphinModelIndex = m_proxyModel->mapToSource(index);
 324     return m_dolphinModel->itemForIndex(dolphinModelIndex);
 325 }
 326
 327 void DolphinView::setContentsPosition(int x, int y)
 328 {
 329     QAbstractItemView* view = itemView();
 330
 331     // the ColumnView takes care itself for the horizontal scrolling
 332     if (!isColumnViewActive()) {
 333         view->horizontalScrollBar()->setValue(x);
 334     }
 335     view->verticalScrollBar()->setValue(y);
 336
 337     m_loadingDirectory = false;
 338 }
 339
 340 QPoint DolphinView::contentsPosition() const
 341 {
 342     const int x = itemView()->horizontalScrollBar()->value();
 343     const int y = itemView()->verticalScrollBar()->value();
 344     return QPoint(x, y);
 345 }
 346
 347 void DolphinView::zoomIn()
 348 {
 349     m_controller->triggerZoomIn();
 350     m_iconManager->updatePreviews();
 351 }
 352
 353 void DolphinView::zoomOut()
 354 {
 355     m_controller->triggerZoomOut();
 356     m_iconManager->updatePreviews();
 357 }
 358
 359 bool DolphinView::isZoomInPossible() const
 360 {
 361     return m_controller->isZoomInPossible();
 362 }
 363
 364 bool DolphinView::isZoomOutPossible() const
 365 {
 366     return m_controller->isZoomOutPossible();
 367 }
 368
 369 void DolphinView::setSorting(Sorting sorting)
 370 {
 371     if (sorting != this->sorting()) {
 372         updateSorting(sorting);
 373     }
 374 }
 375
 376 DolphinView::Sorting DolphinView::sorting() const
 377 {
 378     return m_proxyModel->sorting();
 379 }
 380
 381 void DolphinView::setSortOrder(Qt::SortOrder order)
 382 {
 383     if (sortOrder() != order) {
 384         updateSortOrder(order);
 385     }
 386 }
 387
 388 Qt::SortOrder DolphinView::sortOrder() const
 389 {
 390     return m_proxyModel->sortOrder();
 391 }
 392
 393 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 394 {
 395     const KUrl viewPropsUrl = viewPropertiesUrl();
 396     ViewProperties props(viewPropsUrl);
 397     props.setAdditionalInfo(info);
 398     m_fileItemDelegate->setShowInformation(info);
 399
 400     emit additionalInfoChanged();
 401
 402     if (itemView() != m_detailsView) {
 403         // the details view requires no reloading of the directory, as it maps
 404         // the file item delegate info to its columns internally
 405         loadDirectory(viewPropsUrl);
 406     }
 407 }
 408
 409 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 410 {
 411     return m_fileItemDelegate->showInformation();
 412 }
 413
 414 void DolphinView::reload()
 415 {
 416     setUrl(url());
 417     loadDirectory(url(), true);
 418 }
 419
 420 void DolphinView::refresh()
 421 {
 422     const bool oldActivationState = m_active;
 423     m_active = true;
 424
 425     createView();
 426     applyViewProperties(m_controller->url());
 427     reload();
 428
 429     setActive(oldActivationState);
 430 }
 431
 432 void DolphinView::updateView(const KUrl& url, const KUrl& rootUrl)
 433 {
 434     if (m_controller->url() == url) {
 435         return;
 436     }
 437
 438     m_controller->setUrl(url); // emits urlChanged, which we forward
 439
 440     if (!rootUrl.isEmpty() && rootUrl.isParentOf(url)) {
 441         applyViewProperties(rootUrl);
 442         loadDirectory(rootUrl);
 443         if (itemView() == m_columnView) {
 444             m_columnView->setRootUrl(rootUrl);
 445             m_columnView->showColumn(url);
 446         }
 447     } else {
 448         applyViewProperties(url);
 449         loadDirectory(url);
 450     }
 451
 452     emit startedPathLoading(url);
 453 }
 454
 455 void DolphinView::setNameFilter(const QString& nameFilter)
 456 {
 457     m_proxyModel->setFilterRegExp(nameFilter);
 458
 459     if (isColumnViewActive()) {
 460         // adjusting the directory lister is not enough in the case of the
 461         // column view, as each column has its own directory lister internally...
 462         m_columnView->setNameFilter(nameFilter);
 463     }
 464 }
 465
 466 void DolphinView::calculateItemCount(int& fileCount, int& folderCount)
 467 {
 468     foreach (KFileItem item, m_dirLister->items()) {
 469         if (item.isDir()) {
 470             ++folderCount;
 471         } else {
 472             ++fileCount;
 473         }
 474     }
 475 }
 476
 477 void DolphinView::setUrl(const KUrl& url)
 478 {
 479     updateView(url, KUrl());
 480 }
 481
 482 void DolphinView::changeSelection(const KFileItemList& selection)
 483 {
 484     clearSelection();
 485     if (selection.isEmpty()) {
 486         return;
 487     }
 488     const KUrl& baseUrl = url();
 489     KUrl url;
 490     QItemSelection new_selection;
 491     foreach(const KFileItem& item, selection) {
 492         url = item.url().upUrl();
 493         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 494             QModelIndex index = m_proxyModel->mapFromSource(m_dolphinModel->indexForItem(item));
 495             new_selection.select(index, index);
 496         }
 497     }
 498     itemView()->selectionModel()->select(new_selection,
 499                                          QItemSelectionModel::ClearAndSelect
 500                                          | QItemSelectionModel::Current);
 501 }
 502
 503 void DolphinView::renameSelectedItems()
 504 {
 505     const KFileItemList items = selectedItems();
 506     if (items.count() > 1) {
 507         // More than one item has been selected for renaming. Open
 508         // a rename dialog and rename all items afterwards.
 509         RenameDialog dialog(this, items);
 510         if (dialog.exec() == QDialog::Rejected) {
 511             return;
 512         }
 513
 514         const QString newName = dialog.newName();
 515         if (newName.isEmpty()) {
 516             emit errorMessage(dialog.errorString());
 517         } else {
 518             // TODO: check how this can be integrated into KonqFileUndoManager/KonqOperations
 519             // as one operation instead of n rename operations like it is done now...
 520             Q_ASSERT(newName.contains('#'));
 521
 522             // iterate through all selected items and rename them...
 523             int index = 1;
 524             foreach (KFileItem item, items) {
 525                 const KUrl& oldUrl = item.url();
 526                 QString number;
 527                 number.setNum(index++);
 528
 529                 QString name = newName;
 530                 name.replace('#', number);
 531
 532                 if (oldUrl.fileName() != name) {
 533                     KUrl newUrl = oldUrl;
 534                     newUrl.setFileName(name);
 535                     KonqOperations::rename(this, oldUrl, newUrl);
 536                     emit doingOperation(KonqFileUndoManager::RENAME);
 537                 }
 538             }
 539         }
 540     } else if (DolphinSettings::instance().generalSettings()->renameInline()) {
 541         Q_ASSERT(items.count() == 1);
 542
 543         if (isColumnViewActive()) {
 544             m_columnView->editItem(items.first());
 545         } else {
 546             const QModelIndex dirIndex = m_dolphinModel->indexForItem(items.first());
 547             const QModelIndex proxyIndex = m_proxyModel->mapFromSource(dirIndex);
 548             itemView()->edit(proxyIndex);
 549         }
 550     } else {
 551         Q_ASSERT(items.count() == 1);
 552
 553         RenameDialog dialog(this, items);
 554         if (dialog.exec() == QDialog::Rejected) {
 555             return;
 556         }
 557
 558         const QString& newName = dialog.newName();
 559         if (newName.isEmpty()) {
 560             emit errorMessage(dialog.errorString());
 561         } else {
 562             const KUrl& oldUrl = items.first().url();
 563             KUrl newUrl = oldUrl;
 564             newUrl.setFileName(newName);
 565             KonqOperations::rename(this, oldUrl, newUrl);
 566             emit doingOperation(KonqFileUndoManager::RENAME);
 567         }
 568     }
 569 }
 570
 571 void DolphinView::trashSelectedItems()
 572 {
 573     emit doingOperation(KonqFileUndoManager::TRASH);
 574     KonqOperations::del(this, KonqOperations::TRASH, selectedUrls());
 575 }
 576
 577 void DolphinView::deleteSelectedItems()
 578 {
 579     const KUrl::List list = selectedUrls();
 580     const bool del = KonqOperations::askDeleteConfirmation(list,
 581                      KonqOperations::DEL,
 582                      KonqOperations::DEFAULT_CONFIRMATION,
 583                      this);
 584
 585     if (del) {
 586         KIO::Job* job = KIO::del(list);
 587         connect(job, SIGNAL(result(KJob*)),
 588                 this, SLOT(slotDeleteFileFinished(KJob*)));
 589     }
 590 }
 591
 592 void DolphinView::cutSelectedItems()
 593 {
 594     QMimeData* mimeData = new QMimeData();
 595     const KUrl::List kdeUrls = selectedUrls();
 596     const KUrl::List mostLocalUrls;
 597     KonqMimeData::populateMimeData(mimeData, kdeUrls, mostLocalUrls, true);
 598     QApplication::clipboard()->setMimeData(mimeData);
 599 }
 600
 601 void DolphinView::copySelectedItems()
 602 {
 603     QMimeData* mimeData = new QMimeData();
 604     const KUrl::List kdeUrls = selectedUrls();
 605     const KUrl::List mostLocalUrls;
 606     KonqMimeData::populateMimeData(mimeData, kdeUrls, mostLocalUrls, false);
 607     QApplication::clipboard()->setMimeData(mimeData);
 608 }
 609
 610 void DolphinView::paste()
 611 {
 612     pasteToUrl(url());
 613 }
 614
 615 void DolphinView::pasteIntoFolder()
 616 {
 617     const KFileItemList items = selectedItems();
 618     if ((items.count() == 1) && items.first().isDir()) {
 619         pasteToUrl(items.first().url());
 620     }
 621 }
 622
 623 void DolphinView::setShowPreview(bool show)
 624 {
 625     if (m_showPreview == show) {
 626         return;
 627     }
 628
 629     const KUrl viewPropsUrl = viewPropertiesUrl();
 630     ViewProperties props(viewPropsUrl);
 631     props.setShowPreview(show);
 632
 633     m_showPreview = show;
 634     m_iconManager->setShowPreview(show);
 635     emit showPreviewChanged();
 636
 637     loadDirectory(viewPropsUrl);
 638 }
 639
 640 void DolphinView::setShowHiddenFiles(bool show)
 641 {
 642     if (m_dirLister->showingDotFiles() == show) {
 643         return;
 644     }
 645
 646     const KUrl viewPropsUrl = viewPropertiesUrl();
 647     ViewProperties props(viewPropsUrl);
 648     props.setShowHiddenFiles(show);
 649
 650     m_dirLister->setShowingDotFiles(show);
 651     emit showHiddenFilesChanged();
 652
 653     loadDirectory(viewPropsUrl);
 654 }
 655
 656 void DolphinView::setCategorizedSorting(bool categorized)
 657 {
 658     if (categorized == categorizedSorting()) {
 659         return;
 660     }
 661
 662     // setCategorizedSorting(true) may only get invoked
 663     // if the view supports categorized sorting
 664     Q_ASSERT(!categorized || supportsCategorizedSorting());
 665
 666     ViewProperties props(viewPropertiesUrl());
 667     props.setCategorizedSorting(categorized);
 668     props.save();
 669
 670     m_storedCategorizedSorting = categorized;
 671     m_proxyModel->setCategorizedModel(categorized);
 672
 673     emit categorizedSortingChanged();
 674 }
 675
 676 void DolphinView::toggleSortOrder()
 677 {
 678     const Qt::SortOrder order = (sortOrder() == Qt::AscendingOrder) ?
 679                                 Qt::DescendingOrder :
 680                                 Qt::AscendingOrder;
 681     setSortOrder(order);
 682 }
 683
 684 void DolphinView::toggleAdditionalInfo(QAction* action)
 685 {
 686     const KFileItemDelegate::Information info =
 687         static_cast<KFileItemDelegate::Information>(action->data().toInt());
 688
 689     KFileItemDelegate::InformationList list = additionalInfo();
 690
 691     const bool show = action->isChecked();
 692
 693     const int index = list.indexOf(info);
 694     const bool containsInfo = (index >= 0);
 695     if (show && !containsInfo) {
 696         list.append(info);
 697         setAdditionalInfo(list);
 698     } else if (!show && containsInfo) {
 699         list.removeAt(index);
 700         setAdditionalInfo(list);
 701         Q_ASSERT(list.indexOf(info) < 0);
 702     }
 703 }
 704
 705
 706 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 707 {
 708     QWidget::mouseReleaseEvent(event);
 709     setActive(true);
 710 }
 711
 712 void DolphinView::wheelEvent(QWheelEvent* event)
 713 {
 714     if (event->modifiers() & Qt::ControlModifier) {
 715         const int delta = event->delta();
 716         if ((delta > 0) && isZoomInPossible()) {
 717             zoomIn();
 718         } else if ((delta < 0) && isZoomOutPossible()) {
 719             zoomOut();
 720         }
 721         event->accept();
 722     }
 723 }
 724
 725 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 726 {
 727     if ((watched == itemView()) && (event->type() == QEvent::FocusIn)) {
 728         m_controller->requestActivation();
 729     }
 730
 731     return QWidget::eventFilter(watched, event);
 732 }
 733
 734 void DolphinView::activate()
 735 {
 736     setActive(true);
 737 }
 738
 739 void DolphinView::triggerItem(const KFileItem& item)
 740 {
 741     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 742     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 743         // items are selected by the user, hence don't trigger the
 744         // item specified by 'index'
 745         return;
 746     }
 747
 748     // TODO: the m_isContextMenuOpen check is a workaround for Qt-issue xxxxxx
 749     if (item.isNull() || m_isContextMenuOpen) {
 750         return;
 751     }
 752
 753     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 754 }
 755
 756 void DolphinView::emitSelectionChangedSignal()
 757 {
 758     emit selectionChanged(DolphinView::selectedItems());
 759 }
 760
 761 void DolphinView::openContextMenu(const QPoint& pos)
 762 {
 763     KFileItem item;
 764
 765     const QModelIndex index = itemView()->indexAt(pos);
 766     if (index.isValid() && (index.column() == DolphinModel::Name)) {
 767         item = fileItem(index);
 768     }
 769
 770     m_isContextMenuOpen = true; // TODO: workaround for Qt-issue xxxxxx
 771     emit requestContextMenu(item, url());
 772     m_isContextMenuOpen = false;
 773 }
 774
 775 void DolphinView::dropUrls(const KUrl::List& urls,
 776                            const KUrl& destPath,
 777                            const KFileItem& destItem)
 778 {
 779     Q_ASSERT(!urls.isEmpty());
 780     const KUrl& destination = !destItem.isNull() && destItem.isDir() ?
 781                               destItem.url() : destPath;
 782     const KUrl sourceDir = KUrl(urls.first().directory());
 783     if (sourceDir != destination) {
 784         dropUrls(urls, destination);
 785     }
 786 }
 787
 788 void DolphinView::dropUrls(const KUrl::List& urls,
 789                            const KUrl& destination)
 790 {
 791     DolphinDropController dropController(this);
 792     // forward doingOperation signal up to the mainwindow
 793     connect(&dropController, SIGNAL(doingOperation(KonqFileUndoManager::CommandType)),
 794             this, SIGNAL(doingOperation(KonqFileUndoManager::CommandType)));
 795     dropController.dropUrls(urls, destination);
 796 }
 797
 798 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 799 {
 800     ViewProperties props(viewPropertiesUrl());
 801     props.setSorting(sorting);
 802
 803     m_proxyModel->setSorting(sorting);
 804
 805     emit sortingChanged(sorting);
 806 }
 807
 808 void DolphinView::updateSortOrder(Qt::SortOrder order)
 809 {
 810     ViewProperties props(viewPropertiesUrl());
 811     props.setSortOrder(order);
 812
 813     m_proxyModel->setSortOrder(order);
 814
 815     emit sortOrderChanged(order);
 816 }
 817
 818 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 819 {
 820     ViewProperties props(viewPropertiesUrl());
 821     props.setAdditionalInfo(info);
 822     props.save();
 823
 824     m_fileItemDelegate->setShowInformation(info);
 825
 826     emit additionalInfoChanged();
 827 }
 828
 829 void DolphinView::updateAdditionalInfoActions(KActionCollection* collection)
 830 {
 831     const bool enable = (m_mode == DolphinView::DetailsView) ||
 832                         (m_mode == DolphinView::IconsView);
 833
 834     QAction* showSizeInfo = collection->action("show_size_info");
 835     QAction* showDateInfo = collection->action("show_date_info");
 836     QAction* showPermissionsInfo = collection->action("show_permissions_info");
 837     QAction* showOwnerInfo = collection->action("show_owner_info");
 838     QAction* showGroupInfo = collection->action("show_group_info");
 839     QAction* showMimeInfo = collection->action("show_mime_info");
 840
 841     showSizeInfo->setChecked(false);
 842     showDateInfo->setChecked(false);
 843     showPermissionsInfo->setChecked(false);
 844     showOwnerInfo->setChecked(false);
 845     showGroupInfo->setChecked(false);
 846     showMimeInfo->setChecked(false);
 847
 848     showSizeInfo->setEnabled(enable);
 849     showDateInfo->setEnabled(enable);
 850     showPermissionsInfo->setEnabled(enable);
 851     showOwnerInfo->setEnabled(enable);
 852     showGroupInfo->setEnabled(enable);
 853     showMimeInfo->setEnabled(enable);
 854
 855     foreach (KFileItemDelegate::Information info, m_fileItemDelegate->showInformation()) {
 856         switch (info) {
 857         case KFileItemDelegate::Size:
 858             showSizeInfo->setChecked(true);
 859             break;
 860         case KFileItemDelegate::ModificationTime:
 861             showDateInfo->setChecked(true);
 862             break;
 863         case KFileItemDelegate::Permissions:
 864             showPermissionsInfo->setChecked(true);
 865             break;
 866         case KFileItemDelegate::Owner:
 867             showOwnerInfo->setChecked(true);
 868             break;
 869         case KFileItemDelegate::OwnerAndGroup:
 870             showGroupInfo->setChecked(true);
 871             break;
 872         case KFileItemDelegate::FriendlyMimeType:
 873             showMimeInfo->setChecked(true);
 874             break;
 875         default:
 876             break;
 877         }
 878     }
 879 }
 880
 881 QPair<bool, QString> DolphinView::pasteInfo() const
 882 {
 883     QPair<bool, QString> ret;
 884     QClipboard* clipboard = QApplication::clipboard();
 885     const QMimeData* mimeData = clipboard->mimeData();
 886
 887     KUrl::List urls = KUrl::List::fromMimeData(mimeData);
 888     if (!urls.isEmpty()) {
 889         ret.first = true;
 890         if (urls.count() == 1) {
 891             const KFileItem item(KFileItem::Unknown, KFileItem::Unknown, urls.first(), true);
 892             ret.second = item.isDir() ? i18nc("@action:inmenu", "Paste One Folder") :
 893                                         i18nc("@action:inmenu", "Paste One File");
 894
 895         } else {
 896             ret.second = i18ncp("@action:inmenu", "Paste One Item", "Paste %1 Items", urls.count());
 897         }
 898     } else {
 899         ret.first = false;
 900         ret.second = i18nc("@action:inmenu", "Paste");
 901     }
 902
 903     return ret;
 904 }
 905
 906 void DolphinView::emitContentsMoved()
 907 {
 908     // only emit the contents moved signal if:
 909     // - no directory loading is ongoing (this would reset the contents position
 910     //   always to (0, 0))
 911     // - if the Column View is active: the column view does an automatic
 912     //   positioning during the loading operation, which must be remembered
 913     if (!m_loadingDirectory || isColumnViewActive()) {
 914         const QPoint pos(contentsPosition());
 915         emit contentsMoved(pos.x(), pos.y());
 916     }
 917 }
 918
 919 void DolphinView::showHoverInformation(const KFileItem& item)
 920 {
 921     emit requestItemInfo(item);
 922 }
 923
 924 void DolphinView::clearHoverInformation()
 925 {
 926     emit requestItemInfo(KFileItem());
 927 }
 928
 929 void DolphinView::slotDeleteFileFinished(KJob* job)
 930 {
 931     if (job->error() == 0) {
 932         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
 933     } else {
 934         emit errorMessage(job->errorString());
 935     }
 936 }
 937
 938 void DolphinView::loadDirectory(const KUrl& url, bool reload)
 939 {
 940     if (!url.isValid()) {
 941         const QString location(url.pathOrUrl());
 942         if (location.isEmpty()) {
 943             emit errorMessage(i18nc("@info:status", "The location is empty."));
 944         } else {
 945             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
 946         }
 947         return;
 948     }
 949
 950     m_loadingDirectory = true;
 951
 952     m_dirLister->stop();
 953     m_dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
 954
 955     if (isColumnViewActive()) {
 956         // adjusting the directory lister is not enough in the case of the
 957         // column view, as each column has its own directory lister internally...
 958         if (reload) {
 959             m_columnView->reload();
 960         } else {
 961             m_columnView->showColumn(url);
 962         }
 963     }
 964 }
 965
 966 KUrl DolphinView::viewPropertiesUrl() const
 967 {
 968     if (isColumnViewActive()) {
 969         return m_columnView->rootUrl();
 970     }
 971
 972     return url();
 973 }
 974
 975 void DolphinView::applyViewProperties(const KUrl& url)
 976 {
 977     if (isColumnViewActive() && rootUrl().isParentOf(url)) {
 978         // The column view is active, hence don't apply the view properties
 979         // of sub directories (represented by columns) to the view. The
 980         // view always represents the properties of the first column.
 981         return;
 982     }
 983
 984     const ViewProperties props(url);
 985
 986     const Mode mode = props.viewMode();
 987     if (m_mode != mode) {
 988         m_mode = mode;
 989         createView();
 990         emit modeChanged();
 991     }
 992     if (itemView() == 0) {
 993         createView();
 994     }
 995     Q_ASSERT(itemView() != 0);
 996     Q_ASSERT(m_fileItemDelegate != 0);
 997
 998     const bool showHiddenFiles = props.showHiddenFiles();
 999     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
1000         m_dirLister->setShowingDotFiles(showHiddenFiles);
1001         emit showHiddenFilesChanged();
1002     }
1003
1004     m_storedCategorizedSorting = props.categorizedSorting();
1005     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1006     if (categorized != m_proxyModel->isCategorizedModel()) {
1007         m_proxyModel->setCategorizedModel(categorized);
1008         emit categorizedSortingChanged();
1009     }
1010
1011     const DolphinView::Sorting sorting = props.sorting();
1012     if (sorting != m_proxyModel->sorting()) {
1013         m_proxyModel->setSorting(sorting);
1014         emit sortingChanged(sorting);
1015     }
1016
1017     const Qt::SortOrder sortOrder = props.sortOrder();
1018     if (sortOrder != m_proxyModel->sortOrder()) {
1019         m_proxyModel->setSortOrder(sortOrder);
1020         emit sortOrderChanged(sortOrder);
1021     }
1022
1023     KFileItemDelegate::InformationList info = props.additionalInfo();
1024     if (info != m_fileItemDelegate->showInformation()) {
1025         m_fileItemDelegate->setShowInformation(info);
1026         emit additionalInfoChanged();
1027     }
1028
1029     const bool showPreview = props.showPreview();
1030     if (showPreview != m_showPreview) {
1031         m_showPreview = showPreview;
1032         m_iconManager->setShowPreview(showPreview);
1033         emit showPreviewChanged();
1034     }
1035 }
1036
1037 void DolphinView::createView()
1038 {
1039     deleteView();
1040     Q_ASSERT(m_iconsView == 0);
1041     Q_ASSERT(m_detailsView == 0);
1042     Q_ASSERT(m_columnView == 0);
1043
1044     QAbstractItemView* view = 0;
1045     switch (m_mode) {
1046     case IconsView: {
1047         m_iconsView = new DolphinIconsView(this, m_controller);
1048         view = m_iconsView;
1049         break;
1050     }
1051
1052     case DetailsView:
1053         m_detailsView = new DolphinDetailsView(this, m_controller);
1054         view = m_detailsView;
1055         break;
1056
1057     case ColumnView:
1058         m_columnView = new DolphinColumnView(this, m_controller);
1059         view = m_columnView;
1060         break;
1061     }
1062
1063     Q_ASSERT(view != 0);
1064     view->installEventFilter(this);
1065
1066     m_controller->setItemView(view);
1067
1068     m_fileItemDelegate = new KFileItemDelegate(view);
1069     view->setItemDelegate(m_fileItemDelegate);
1070
1071     view->setModel(m_proxyModel);
1072     if (m_selectionModel != 0) {
1073         view->setSelectionModel(m_selectionModel);
1074     } else {
1075         m_selectionModel = view->selectionModel();
1076     }
1077
1078     // reparent the selection model, as it should not be deleted
1079     // when deleting the model
1080     m_selectionModel->setParent(this);
1081
1082     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
1083
1084     new KMimeTypeResolver(view, m_dolphinModel);
1085     m_iconManager = new IconManager(view, m_proxyModel);
1086     m_iconManager->setShowPreview(m_showPreview);
1087
1088     if (DolphinSettings::instance().generalSettings()->showToolTips()) {
1089         new ToolTipManager(view, m_proxyModel);
1090     }
1091
1092     m_topLayout->insertWidget(1, view);
1093
1094     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
1095             this, SLOT(emitSelectionChangedSignal()));
1096     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
1097             this, SLOT(emitContentsMoved()));
1098     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
1099             this, SLOT(emitContentsMoved()));
1100 }
1101
1102 void DolphinView::deleteView()
1103 {
1104     QAbstractItemView* view = itemView();
1105     if (view != 0) {
1106         m_topLayout->removeWidget(view);
1107         view->close();
1108         view->deleteLater();
1109         view = 0;
1110         m_iconsView = 0;
1111         m_detailsView = 0;
1112         m_columnView = 0;
1113         m_fileItemDelegate = 0;
1114         m_iconManager = 0;
1115     }
1116 }
1117
1118 QAbstractItemView* DolphinView::itemView() const
1119 {
1120     if (m_detailsView != 0) {
1121         return m_detailsView;
1122     } else if (m_columnView != 0) {
1123         return m_columnView;
1124     }
1125
1126     return m_iconsView;
1127 }
1128
1129 bool DolphinView::isCutItem(const KFileItem& item) const
1130 {
1131     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
1132     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
1133
1134     const KUrl& itemUrl = item.url();
1135     KUrl::List::const_iterator it = cutUrls.begin();
1136     const KUrl::List::const_iterator end = cutUrls.end();
1137     while (it != end) {
1138         if (*it == itemUrl) {
1139             return true;
1140         }
1141         ++it;
1142     }
1143
1144     return false;
1145 }
1146
1147 void DolphinView::pasteToUrl(const KUrl& url)
1148 {
1149     QClipboard* clipboard = QApplication::clipboard();
1150     const QMimeData* mimeData = clipboard->mimeData();
1151
1152     const KUrl::List sourceUrls = KUrl::List::fromMimeData(mimeData);
1153     if (KonqMimeData::decodeIsCutSelection(mimeData)) {
1154         KonqOperations::copy(this, KonqOperations::MOVE, sourceUrls, url);
1155         emit doingOperation(KonqFileUndoManager::MOVE);
1156         clipboard->clear();
1157     } else {
1158         KonqOperations::copy(this, KonqOperations::COPY, sourceUrls, url);
1159         emit doingOperation(KonqFileUndoManager::COPY);
1160     }
1161 }
1162
1163 #include "dolphinview.moc"