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_fileitemcapabilities.h>
  45 #include <konq_operations.h>
  46 #include <konqmimedata.h>
  47 #include <ktoggleaction.h>
  48 #include <kurl.h>
  49
  50 #include "dolphindropcontroller.h"
  51 #include "dolphinmodel.h"
  52 #include "dolphincolumnview.h"
  53 #include "dolphincontroller.h"
  54 #include "dolphinsortfilterproxymodel.h"
  55 #include "dolphindetailsview.h"
  56 #include "dolphiniconsview.h"
  57 #include "dolphinsettings.h"
  58 #include "dolphin_generalsettings.h"
  59 #include "iconmanager.h"
  60 #include "renamedialog.h"
  61 #include "tooltipmanager.h"
  62 #include "viewproperties.h"
  63
  64 DolphinView::DolphinView(QWidget* parent,
  65                          const KUrl& url,
  66                          KDirLister* dirLister,
  67                          DolphinModel* dolphinModel,
  68                          DolphinSortFilterProxyModel* proxyModel) :
  69     QWidget(parent),
  70     m_active(true),
  71     m_showPreview(false),
  72     m_loadingDirectory(false),
  73     m_storedCategorizedSorting(false),
  74     m_tabsForFiles(false),
  75     m_isContextMenuOpen(false),
  76     m_mode(DolphinView::IconsView),
  77     m_topLayout(0),
  78     m_controller(0),
  79     m_iconsView(0),
  80     m_detailsView(0),
  81     m_columnView(0),
  82     m_fileItemDelegate(0),
  83     m_selectionModel(0),
  84     m_dolphinModel(dolphinModel),
  85     m_dirLister(dirLister),
  86     m_proxyModel(proxyModel),
  87     m_iconManager(0),
  88     m_toolTipManager(0),
  89     m_rootUrl(),
  90     m_currentItemUrl()
  91 {
  92     m_topLayout = new QVBoxLayout(this);
  93     m_topLayout->setSpacing(0);
  94     m_topLayout->setMargin(0);
  95
  96     m_controller = new DolphinController(this);
  97     m_controller->setUrl(url);
  98
  99     connect(m_controller, SIGNAL(urlChanged(const KUrl&)),
 100             this, SIGNAL(urlChanged(const KUrl&)));
 101     connect(m_controller, SIGNAL(requestUrlChange(const KUrl&)),
 102             this, SLOT(slotRequestUrlChange(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(tabRequested(const KUrl&)),
 117             this, SIGNAL(tabRequested(const KUrl&)));
 118     connect(m_controller, SIGNAL(activated()),
 119             this, SLOT(activate()));
 120     connect(m_controller, SIGNAL(itemEntered(const KFileItem&)),
 121             this, SLOT(showHoverInformation(const KFileItem&)));
 122     connect(m_controller, SIGNAL(viewportEntered()),
 123             this, SLOT(clearHoverInformation()));
 124
 125     connect(m_dirLister, SIGNAL(redirection(KUrl, KUrl)),
 126             this, SLOT(slotRedirection(KUrl, KUrl)));
 127     connect(m_dirLister, SIGNAL(completed()),
 128             this, SLOT(restoreCurrentItem()));
 129
 130     applyViewProperties(url);
 131     m_topLayout->addWidget(itemView());
 132 }
 133
 134 DolphinView::~DolphinView()
 135 {
 136 }
 137
 138 const KUrl& DolphinView::url() const
 139 {
 140     return m_controller->url();
 141 }
 142
 143 KUrl DolphinView::rootUrl() const
 144 {
 145     return isColumnViewActive() ? m_columnView->rootUrl() : url();
 146 }
 147
 148 void DolphinView::setActive(bool active)
 149 {
 150     if (active == m_active) {
 151         return;
 152     }
 153
 154     m_active = active;
 155
 156     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 157     if (active) {
 158         // TODO: emitting urlChanged() is a hack, as the URL hasn't really changed. It
 159         // bypasses the problem when having a split view and changing the active view to
 160         // update the some URL dependent states. A nicer approach should be no big deal...
 161         emit urlChanged(url());
 162         emit selectionChanged(selectedItems());
 163     } else {
 164         color.setAlpha(150);
 165     }
 166
 167     QWidget* viewport = itemView()->viewport();
 168     QPalette palette;
 169     palette.setColor(viewport->backgroundRole(), color);
 170     viewport->setPalette(palette);
 171
 172     update();
 173
 174     if (active) {
 175         itemView()->setFocus();
 176         emit activated();
 177     }
 178
 179     m_controller->indicateActivationChange(active);
 180 }
 181
 182 bool DolphinView::isActive() const
 183 {
 184     return m_active;
 185 }
 186
 187 void DolphinView::setMode(Mode mode)
 188 {
 189     if (mode == m_mode) {
 190         return; // the wished mode is already set
 191     }
 192
 193     m_mode = mode;
 194
 195     deleteView();
 196
 197     const KUrl viewPropsUrl = viewPropertiesUrl();
 198     ViewProperties props(viewPropsUrl);
 199     props.setViewMode(m_mode);
 200     createView();
 201
 202     // the file item delegate has been recreated, apply the current
 203     // additional information manually
 204     const KFileItemDelegate::InformationList infoList = props.additionalInfo();
 205     m_fileItemDelegate->setShowInformation(infoList);
 206     emit additionalInfoChanged();
 207
 208     // Not all view modes support categorized sorting. Adjust the sorting model
 209     // if changing the view mode results in a change of the categorized sorting
 210     // capabilities.
 211     m_storedCategorizedSorting = props.categorizedSorting();
 212     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 213     if (categorized != m_proxyModel->isCategorizedModel()) {
 214         m_proxyModel->setCategorizedModel(categorized);
 215         emit categorizedSortingChanged();
 216     }
 217
 218     emit modeChanged();
 219 }
 220
 221 DolphinView::Mode DolphinView::mode() const
 222 {
 223     return m_mode;
 224 }
 225
 226 bool DolphinView::showPreview() const
 227 {
 228     return m_showPreview;
 229 }
 230
 231 bool DolphinView::showHiddenFiles() const
 232 {
 233     return m_dirLister->showingDotFiles();
 234 }
 235
 236 bool DolphinView::categorizedSorting() const
 237 {
 238     // If all view modes would support categorized sorting, returning
 239     // m_proxyModel->isCategorizedModel() would be the way to go. As
 240     // currently only the icons view supports caterized sorting, we remember
 241     // the stored view properties state in m_storedCategorizedSorting and
 242     // return this state. The application takes care to disable the corresponding
 243     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 244     // that this setting is not applied to the current view mode.
 245     return m_storedCategorizedSorting;
 246 }
 247
 248 bool DolphinView::supportsCategorizedSorting() const
 249 {
 250     return m_iconsView != 0;
 251 }
 252
 253 void DolphinView::selectAll()
 254 {
 255     QAbstractItemView* view = itemView();
 256     // TODO: there seems to be a bug in QAbstractItemView::selectAll(); if
 257     // the Ctrl-key is pressed (e. g. for Ctrl+A), selectAll() inverts the
 258     // selection instead of selecting all items. This is bypassed for KDE 4.0
 259     // by invoking clearSelection() first.
 260     view->clearSelection();
 261     view->selectAll();
 262 }
 263
 264 void DolphinView::invertSelection()
 265 {
 266     if (isColumnViewActive()) {
 267         // QAbstractItemView does not offer a virtual method invertSelection()
 268         // as counterpart to QAbstractItemView::selectAll(). This makes it
 269         // necessary to delegate the inverting of the selection to the
 270         // column view, as only the selection of the active column should
 271         // get inverted.
 272         m_columnView->invertSelection();
 273     } else {
 274         QItemSelectionModel* selectionModel = itemView()->selectionModel();
 275         const QAbstractItemModel* itemModel = selectionModel->model();
 276
 277         const QModelIndex topLeft = itemModel->index(0, 0);
 278         const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 279                                                          itemModel->columnCount() - 1);
 280
 281         const QItemSelection selection(topLeft, bottomRight);
 282         selectionModel->select(selection, QItemSelectionModel::Toggle);
 283     }
 284 }
 285
 286 bool DolphinView::hasSelection() const
 287 {
 288     return itemView()->selectionModel()->hasSelection();
 289 }
 290
 291 void DolphinView::clearSelection()
 292 {
 293     itemView()->selectionModel()->clear();
 294 }
 295
 296 KFileItemList DolphinView::selectedItems() const
 297 {
 298     if (isColumnViewActive()) {
 299         return m_columnView->selectedItems();
 300     }
 301
 302     const QAbstractItemView* view = itemView();
 303
 304     // Our view has a selection, we will map them back to the DolphinModel
 305     // and then fill the KFileItemList.
 306     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 307
 308     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 309     KFileItemList itemList;
 310
 311     const QModelIndexList indexList = selection.indexes();
 312     foreach (const QModelIndex &index, indexList) {
 313         KFileItem item = m_dolphinModel->itemForIndex(index);
 314         if (!item.isNull()) {
 315             itemList.append(item);
 316         }
 317     }
 318
 319     return itemList;
 320 }
 321
 322 KUrl::List DolphinView::selectedUrls() const
 323 {
 324     KUrl::List urls;
 325     const KFileItemList list = selectedItems();
 326     foreach (const KFileItem &item, list) {
 327         urls.append(item.url());
 328     }
 329     return urls;
 330 }
 331
 332 int DolphinView::selectedItemsCount() const
 333 {
 334     if (isColumnViewActive()) {
 335         // TODO: get rid of this special case by adjusting the dir lister
 336         // to the current column
 337         return m_columnView->selectedItems().count();
 338     }
 339
 340     return itemView()->selectionModel()->selection().count();
 341 }
 342
 343 void DolphinView::setContentsPosition(int x, int y)
 344 {
 345     QAbstractItemView* view = itemView();
 346
 347     // the ColumnView takes care itself for the horizontal scrolling
 348     if (!isColumnViewActive()) {
 349         view->horizontalScrollBar()->setValue(x);
 350     }
 351     view->verticalScrollBar()->setValue(y);
 352
 353     m_loadingDirectory = false;
 354 }
 355
 356 QPoint DolphinView::contentsPosition() const
 357 {
 358     const int x = itemView()->horizontalScrollBar()->value();
 359     const int y = itemView()->verticalScrollBar()->value();
 360     return QPoint(x, y);
 361 }
 362
 363 void DolphinView::zoomIn()
 364 {
 365     m_controller->triggerZoomIn();
 366     m_iconManager->updatePreviews();
 367 }
 368
 369 void DolphinView::zoomOut()
 370 {
 371     m_controller->triggerZoomOut();
 372     m_iconManager->updatePreviews();
 373 }
 374
 375 bool DolphinView::isZoomInPossible() const
 376 {
 377     return m_controller->isZoomInPossible();
 378 }
 379
 380 bool DolphinView::isZoomOutPossible() const
 381 {
 382     return m_controller->isZoomOutPossible();
 383 }
 384
 385 void DolphinView::setSorting(Sorting sorting)
 386 {
 387     if (sorting != this->sorting()) {
 388         updateSorting(sorting);
 389     }
 390 }
 391
 392 DolphinView::Sorting DolphinView::sorting() const
 393 {
 394     return m_proxyModel->sorting();
 395 }
 396
 397 void DolphinView::setSortOrder(Qt::SortOrder order)
 398 {
 399     if (sortOrder() != order) {
 400         updateSortOrder(order);
 401     }
 402 }
 403
 404 Qt::SortOrder DolphinView::sortOrder() const
 405 {
 406     return m_proxyModel->sortOrder();
 407 }
 408
 409 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 410 {
 411     const KUrl viewPropsUrl = viewPropertiesUrl();
 412     ViewProperties props(viewPropsUrl);
 413     props.setAdditionalInfo(info);
 414     m_fileItemDelegate->setShowInformation(info);
 415
 416     emit additionalInfoChanged();
 417
 418     if (itemView() != m_detailsView) {
 419         // the details view requires no reloading of the directory, as it maps
 420         // the file item delegate info to its columns internally
 421         loadDirectory(viewPropsUrl);
 422     }
 423 }
 424
 425 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 426 {
 427     return m_fileItemDelegate->showInformation();
 428 }
 429
 430 void DolphinView::reload()
 431 {
 432     setUrl(url());
 433     loadDirectory(url(), true);
 434 }
 435
 436 void DolphinView::refresh()
 437 {
 438     const bool oldActivationState = m_active;
 439     m_active = true;
 440
 441     createView();
 442     applyViewProperties(m_controller->url());
 443     reload();
 444
 445     setActive(oldActivationState);
 446 }
 447
 448 void DolphinView::updateView(const KUrl& url, const KUrl& rootUrl)
 449 {
 450     if (m_controller->url() == url) {
 451         return;
 452     }
 453
 454     m_iconManager->cancelPreviews();
 455     m_controller->setUrl(url); // emits urlChanged, which we forward
 456
 457     if (!rootUrl.isEmpty() && rootUrl.isParentOf(url)) {
 458         applyViewProperties(rootUrl);
 459         loadDirectory(rootUrl);
 460         if (itemView() == m_columnView) {
 461             m_columnView->setRootUrl(rootUrl);
 462             m_columnView->showColumn(url);
 463         }
 464     } else {
 465         applyViewProperties(url);
 466         loadDirectory(url);
 467     }
 468
 469     emit startedPathLoading(url);
 470 }
 471
 472 void DolphinView::setNameFilter(const QString& nameFilter)
 473 {
 474     m_proxyModel->setFilterRegExp(nameFilter);
 475
 476     if (isColumnViewActive()) {
 477         // adjusting the directory lister is not enough in the case of the
 478         // column view, as each column has its own directory lister internally...
 479         m_columnView->setNameFilter(nameFilter);
 480     }
 481 }
 482
 483 void DolphinView::calculateItemCount(int& fileCount, int& folderCount)
 484 {
 485     foreach (const KFileItem &item, m_dirLister->items()) {
 486         if (item.isDir()) {
 487             ++folderCount;
 488         } else {
 489             ++fileCount;
 490         }
 491     }
 492 }
 493
 494 void DolphinView::setUrl(const KUrl& url)
 495 {
 496     // remember current item candidate (see restoreCurrentItem())
 497     m_currentItemUrl = url;
 498     updateView(url, KUrl());
 499 }
 500
 501 void DolphinView::changeSelection(const KFileItemList& selection)
 502 {
 503     clearSelection();
 504     if (selection.isEmpty()) {
 505         return;
 506     }
 507     const KUrl& baseUrl = url();
 508     KUrl url;
 509     QItemSelection new_selection;
 510     foreach(const KFileItem& item, selection) {
 511         url = item.url().upUrl();
 512         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 513             QModelIndex index = m_proxyModel->mapFromSource(m_dolphinModel->indexForItem(item));
 514             new_selection.select(index, index);
 515         }
 516     }
 517     itemView()->selectionModel()->select(new_selection,
 518                                          QItemSelectionModel::ClearAndSelect
 519                                          | QItemSelectionModel::Current);
 520 }
 521
 522 void DolphinView::renameSelectedItems()
 523 {
 524     const KFileItemList items = selectedItems();
 525     const int itemCount = items.count();
 526     if (itemCount < 1) {
 527         return;
 528     }
 529
 530     if (itemCount > 1) {
 531         // More than one item has been selected for renaming. Open
 532         // a rename dialog and rename all items afterwards.
 533         RenameDialog dialog(this, items);
 534         if (dialog.exec() == QDialog::Rejected) {
 535             return;
 536         }
 537
 538         const QString newName = dialog.newName();
 539         if (newName.isEmpty()) {
 540             emit errorMessage(dialog.errorString());
 541         } else {
 542             // TODO: check how this can be integrated into KIO::FileUndoManager/KonqOperations
 543             // as one operation instead of n rename operations like it is done now...
 544             Q_ASSERT(newName.contains('#'));
 545
 546             // iterate through all selected items and rename them...
 547             int index = 1;
 548             foreach (const KFileItem &item, items) {
 549                 const KUrl& oldUrl = item.url();
 550                 QString number;
 551                 number.setNum(index++);
 552
 553                 QString name = newName;
 554                 name.replace('#', number);
 555
 556                 if (oldUrl.fileName() != name) {
 557                     KUrl newUrl = oldUrl;
 558                     newUrl.setFileName(name);
 559                     KonqOperations::rename(this, oldUrl, newUrl);
 560                     emit doingOperation(KIO::FileUndoManager::Rename);
 561                 }
 562             }
 563         }
 564     } else if (DolphinSettings::instance().generalSettings()->renameInline()) {
 565         if (isColumnViewActive()) {
 566             m_columnView->editItem(items.first());
 567         } else {
 568             const QModelIndex dirIndex = m_dolphinModel->indexForItem(items.first());
 569             const QModelIndex proxyIndex = m_proxyModel->mapFromSource(dirIndex);
 570             itemView()->edit(proxyIndex);
 571         }
 572     } else {
 573         RenameDialog dialog(this, items);
 574         if (dialog.exec() == QDialog::Rejected) {
 575             return;
 576         }
 577
 578         const QString& newName = dialog.newName();
 579         if (newName.isEmpty()) {
 580             emit errorMessage(dialog.errorString());
 581         } else {
 582             const KUrl& oldUrl = items.first().url();
 583             KUrl newUrl = oldUrl;
 584             newUrl.setFileName(newName);
 585             KonqOperations::rename(this, oldUrl, newUrl);
 586             emit doingOperation(KIO::FileUndoManager::Rename);
 587         }
 588     }
 589 }
 590
 591 void DolphinView::trashSelectedItems()
 592 {
 593     emit doingOperation(KIO::FileUndoManager::Trash);
 594     KonqOperations::del(this, KonqOperations::TRASH, selectedUrls());
 595 }
 596
 597 void DolphinView::deleteSelectedItems()
 598 {
 599     const KUrl::List list = selectedUrls();
 600     const bool del = KonqOperations::askDeleteConfirmation(list,
 601                      KonqOperations::DEL,
 602                      KonqOperations::DEFAULT_CONFIRMATION,
 603                      this);
 604
 605     if (del) {
 606         KIO::Job* job = KIO::del(list);
 607         connect(job, SIGNAL(result(KJob*)),
 608                 this, SLOT(slotDeleteFileFinished(KJob*)));
 609     }
 610 }
 611
 612 void DolphinView::cutSelectedItems()
 613 {
 614     QMimeData* mimeData = new QMimeData();
 615     const KUrl::List kdeUrls = selectedUrls();
 616     const KUrl::List mostLocalUrls;
 617     KonqMimeData::populateMimeData(mimeData, kdeUrls, mostLocalUrls, true);
 618     QApplication::clipboard()->setMimeData(mimeData);
 619 }
 620
 621 void DolphinView::copySelectedItems()
 622 {
 623     QMimeData* mimeData = new QMimeData();
 624     const KUrl::List kdeUrls = selectedUrls();
 625     const KUrl::List mostLocalUrls;
 626     KonqMimeData::populateMimeData(mimeData, kdeUrls, mostLocalUrls, false);
 627     QApplication::clipboard()->setMimeData(mimeData);
 628 }
 629
 630 void DolphinView::paste()
 631 {
 632     pasteToUrl(url());
 633 }
 634
 635 void DolphinView::pasteIntoFolder()
 636 {
 637     const KFileItemList items = selectedItems();
 638     if ((items.count() == 1) && items.first().isDir()) {
 639         pasteToUrl(items.first().url());
 640     }
 641 }
 642
 643 void DolphinView::setShowPreview(bool show)
 644 {
 645     if (m_showPreview == show) {
 646         return;
 647     }
 648
 649     const KUrl viewPropsUrl = viewPropertiesUrl();
 650     ViewProperties props(viewPropsUrl);
 651     props.setShowPreview(show);
 652
 653     m_showPreview = show;
 654     m_iconManager->setShowPreview(show);
 655     emit showPreviewChanged();
 656
 657     loadDirectory(viewPropsUrl);
 658 }
 659
 660 void DolphinView::setShowHiddenFiles(bool show)
 661 {
 662     if (m_dirLister->showingDotFiles() == show) {
 663         return;
 664     }
 665
 666     const KUrl viewPropsUrl = viewPropertiesUrl();
 667     ViewProperties props(viewPropsUrl);
 668     props.setShowHiddenFiles(show);
 669
 670     m_dirLister->setShowingDotFiles(show);
 671     emit showHiddenFilesChanged();
 672
 673     loadDirectory(viewPropsUrl);
 674 }
 675
 676 void DolphinView::setCategorizedSorting(bool categorized)
 677 {
 678     if (categorized == categorizedSorting()) {
 679         return;
 680     }
 681
 682     // setCategorizedSorting(true) may only get invoked
 683     // if the view supports categorized sorting
 684     Q_ASSERT(!categorized || supportsCategorizedSorting());
 685
 686     ViewProperties props(viewPropertiesUrl());
 687     props.setCategorizedSorting(categorized);
 688     props.save();
 689
 690     m_storedCategorizedSorting = categorized;
 691     m_proxyModel->setCategorizedModel(categorized);
 692
 693     emit categorizedSortingChanged();
 694 }
 695
 696 void DolphinView::toggleSortOrder()
 697 {
 698     const Qt::SortOrder order = (sortOrder() == Qt::AscendingOrder) ?
 699                                 Qt::DescendingOrder :
 700                                 Qt::AscendingOrder;
 701     setSortOrder(order);
 702 }
 703
 704 void DolphinView::toggleAdditionalInfo(QAction* action)
 705 {
 706     const KFileItemDelegate::Information info =
 707         static_cast<KFileItemDelegate::Information>(action->data().toInt());
 708
 709     KFileItemDelegate::InformationList list = additionalInfo();
 710
 711     const bool show = action->isChecked();
 712
 713     const int index = list.indexOf(info);
 714     const bool containsInfo = (index >= 0);
 715     if (show && !containsInfo) {
 716         list.append(info);
 717         setAdditionalInfo(list);
 718     } else if (!show && containsInfo) {
 719         list.removeAt(index);
 720         setAdditionalInfo(list);
 721         Q_ASSERT(list.indexOf(info) < 0);
 722     }
 723 }
 724
 725
 726 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 727 {
 728     QWidget::mouseReleaseEvent(event);
 729     setActive(true);
 730 }
 731
 732 void DolphinView::wheelEvent(QWheelEvent* event)
 733 {
 734     if (event->modifiers() & Qt::ControlModifier) {
 735         const int delta = event->delta();
 736         if ((delta > 0) && isZoomInPossible()) {
 737             zoomIn();
 738         } else if ((delta < 0) && isZoomOutPossible()) {
 739             zoomOut();
 740         }
 741         event->accept();
 742     }
 743 }
 744
 745 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 746 {
 747     if ((watched == itemView()) && (event->type() == QEvent::FocusIn)) {
 748         m_controller->requestActivation();
 749     }
 750
 751     return QWidget::eventFilter(watched, event);
 752 }
 753
 754 void DolphinView::activate()
 755 {
 756     setActive(true);
 757 }
 758
 759 void DolphinView::triggerItem(const KFileItem& item)
 760 {
 761     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 762     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 763         // items are selected by the user, hence don't trigger the
 764         // item specified by 'index'
 765         return;
 766     }
 767
 768     // TODO: the m_isContextMenuOpen check is a workaround for Qt-issue 207192
 769     if (item.isNull() || m_isContextMenuOpen) {
 770         return;
 771     }
 772
 773     if (m_toolTipManager != 0) {
 774         m_toolTipManager->hideTip();
 775     }
 776     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 777 }
 778
 779 void DolphinView::emitSelectionChangedSignal()
 780 {
 781     emit selectionChanged(DolphinView::selectedItems());
 782 }
 783
 784 void DolphinView::openContextMenu(const QPoint& pos)
 785 {
 786     KFileItem item;
 787     if (isColumnViewActive()) {
 788         item = m_columnView->itemAt(pos);
 789     } else {
 790         const QModelIndex index = itemView()->indexAt(pos);
 791         if (index.isValid() && (index.column() == DolphinModel::Name)) {
 792             const QModelIndex dolphinModelIndex = m_proxyModel->mapToSource(index);
 793             item = m_dolphinModel->itemForIndex(dolphinModelIndex);
 794         }
 795     }
 796
 797     if (m_toolTipManager != 0) {
 798         m_toolTipManager->hideTip();
 799     }
 800
 801     m_isContextMenuOpen = true; // TODO: workaround for Qt-issue 207192
 802     emit requestContextMenu(item, url());
 803     m_isContextMenuOpen = false;
 804 }
 805
 806 void DolphinView::dropUrls(const KUrl::List& urls,
 807                            const KUrl& destPath,
 808                            const KFileItem& destItem)
 809 {
 810     Q_ASSERT(!urls.isEmpty());
 811     const KUrl destination = !destItem.isNull() && destItem.isDir() ?
 812                              destItem.url() : destPath;
 813     const KUrl sourceDir = KUrl(urls.first().directory());
 814     if (sourceDir != destination) {
 815         DolphinDropController dropController(this);
 816         // forward doingOperation signal up to the mainwindow
 817         connect(&dropController, SIGNAL(doingOperation(KIO::FileUndoManager::CommandType)),
 818                 this, SIGNAL(doingOperation(KIO::FileUndoManager::CommandType)));
 819         dropController.dropUrls(urls, destination);
 820     }
 821 }
 822
 823 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 824 {
 825     ViewProperties props(viewPropertiesUrl());
 826     props.setSorting(sorting);
 827
 828     m_proxyModel->setSorting(sorting);
 829
 830     emit sortingChanged(sorting);
 831 }
 832
 833 void DolphinView::updateSortOrder(Qt::SortOrder order)
 834 {
 835     ViewProperties props(viewPropertiesUrl());
 836     props.setSortOrder(order);
 837
 838     m_proxyModel->setSortOrder(order);
 839
 840     emit sortOrderChanged(order);
 841 }
 842
 843 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 844 {
 845     ViewProperties props(viewPropertiesUrl());
 846     props.setAdditionalInfo(info);
 847     props.save();
 848
 849     m_fileItemDelegate->setShowInformation(info);
 850
 851     emit additionalInfoChanged();
 852 }
 853
 854 void DolphinView::updateAdditionalInfoActions(KActionCollection* collection)
 855 {
 856     const bool enable = (m_mode == DolphinView::DetailsView) ||
 857                         (m_mode == DolphinView::IconsView);
 858
 859     QAction* showSizeInfo = collection->action("show_size_info");
 860     QAction* showDateInfo = collection->action("show_date_info");
 861     QAction* showPermissionsInfo = collection->action("show_permissions_info");
 862     QAction* showOwnerInfo = collection->action("show_owner_info");
 863     QAction* showGroupInfo = collection->action("show_group_info");
 864     QAction* showMimeInfo = collection->action("show_mime_info");
 865
 866     showSizeInfo->setChecked(false);
 867     showDateInfo->setChecked(false);
 868     showPermissionsInfo->setChecked(false);
 869     showOwnerInfo->setChecked(false);
 870     showGroupInfo->setChecked(false);
 871     showMimeInfo->setChecked(false);
 872
 873     showSizeInfo->setEnabled(enable);
 874     showDateInfo->setEnabled(enable);
 875     showPermissionsInfo->setEnabled(enable);
 876     showOwnerInfo->setEnabled(enable);
 877     showGroupInfo->setEnabled(enable);
 878     showMimeInfo->setEnabled(enable);
 879
 880     foreach (KFileItemDelegate::Information info, m_fileItemDelegate->showInformation()) {
 881         switch (info) {
 882         case KFileItemDelegate::Size:
 883             showSizeInfo->setChecked(true);
 884             break;
 885         case KFileItemDelegate::ModificationTime:
 886             showDateInfo->setChecked(true);
 887             break;
 888         case KFileItemDelegate::Permissions:
 889             showPermissionsInfo->setChecked(true);
 890             break;
 891         case KFileItemDelegate::Owner:
 892             showOwnerInfo->setChecked(true);
 893             break;
 894         case KFileItemDelegate::OwnerAndGroup:
 895             showGroupInfo->setChecked(true);
 896             break;
 897         case KFileItemDelegate::FriendlyMimeType:
 898             showMimeInfo->setChecked(true);
 899             break;
 900         default:
 901             break;
 902         }
 903     }
 904 }
 905
 906 QPair<bool, QString> DolphinView::pasteInfo() const
 907 {
 908     QPair<bool, QString> ret;
 909     QClipboard* clipboard = QApplication::clipboard();
 910     const QMimeData* mimeData = clipboard->mimeData();
 911
 912     KUrl::List urls = KUrl::List::fromMimeData(mimeData);
 913     if (!urls.isEmpty()) {
 914         // disable the paste action if no writing is supported
 915         KFileItem item(KFileItem::Unknown, KFileItem::Unknown, url());
 916         ret.first = KonqFileItemCapabilities(KFileItemList() << item).supportsWriting();
 917
 918         if (urls.count() == 1) {
 919             const KFileItem item(KFileItem::Unknown, KFileItem::Unknown, urls.first(), true);
 920             ret.second = item.isDir() ? i18nc("@action:inmenu", "Paste One Folder") :
 921                                         i18nc("@action:inmenu", "Paste One File");
 922
 923         } else {
 924             ret.second = i18ncp("@action:inmenu", "Paste One Item", "Paste %1 Items", urls.count());
 925         }
 926     } else {
 927         ret.first = false;
 928         ret.second = i18nc("@action:inmenu", "Paste");
 929     }
 930
 931     return ret;
 932 }
 933
 934 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
 935 {
 936     m_tabsForFiles = tabsForFiles;
 937 }
 938
 939 bool DolphinView::isTabsForFilesEnabled() const
 940 {
 941     return m_tabsForFiles;
 942 }
 943
 944 void DolphinView::emitContentsMoved()
 945 {
 946     // only emit the contents moved signal if:
 947     // - no directory loading is ongoing (this would reset the contents position
 948     //   always to (0, 0))
 949     // - if the Column View is active: the column view does an automatic
 950     //   positioning during the loading operation, which must be remembered
 951     if (!m_loadingDirectory || isColumnViewActive()) {
 952         const QPoint pos(contentsPosition());
 953         emit contentsMoved(pos.x(), pos.y());
 954     }
 955 }
 956
 957 void DolphinView::showHoverInformation(const KFileItem& item)
 958 {
 959     emit requestItemInfo(item);
 960 }
 961
 962 void DolphinView::clearHoverInformation()
 963 {
 964     emit requestItemInfo(KFileItem());
 965 }
 966
 967 void DolphinView::slotDeleteFileFinished(KJob* job)
 968 {
 969     if (job->error() == 0) {
 970         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
 971     } else {
 972         emit errorMessage(job->errorString());
 973     }
 974 }
 975
 976
 977 void DolphinView::restoreCurrentItem()
 978 {
 979     const QModelIndex dirIndex = m_dolphinModel->indexForUrl(m_currentItemUrl);
 980     if (dirIndex.isValid()) {
 981         const QModelIndex proxyIndex = m_proxyModel->mapFromSource(dirIndex);
 982         QAbstractItemView* view = itemView();
 983         const bool clearSelection = !hasSelection();
 984         view->setCurrentIndex(proxyIndex);
 985         if (clearSelection) {
 986             view->clearSelection();
 987         }
 988     }
 989 }
 990
 991 void DolphinView::loadDirectory(const KUrl& url, bool reload)
 992 {
 993     if (!url.isValid()) {
 994         const QString location(url.pathOrUrl());
 995         if (location.isEmpty()) {
 996             emit errorMessage(i18nc("@info:status", "The location is empty."));
 997         } else {
 998             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
 999         }
1000         return;
1001     }
1002
1003     m_loadingDirectory = true;
1004
1005     m_dirLister->stop();
1006     m_dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
1007
1008     if (isColumnViewActive()) {
1009         // adjusting the directory lister is not enough in the case of the
1010         // column view, as each column has its own directory lister internally...
1011         if (reload) {
1012             m_columnView->reload();
1013         } else {
1014             m_columnView->showColumn(url);
1015         }
1016     }
1017 }
1018
1019 KUrl DolphinView::viewPropertiesUrl() const
1020 {
1021     if (isColumnViewActive()) {
1022         return m_columnView->rootUrl();
1023     }
1024
1025     return url();
1026 }
1027
1028 void DolphinView::applyViewProperties(const KUrl& url)
1029 {
1030     if (isColumnViewActive() && rootUrl().isParentOf(url)) {
1031         // The column view is active, hence don't apply the view properties
1032         // of sub directories (represented by columns) to the view. The
1033         // view always represents the properties of the first column.
1034         return;
1035     }
1036
1037     const ViewProperties props(url);
1038
1039     const Mode mode = props.viewMode();
1040     if (m_mode != mode) {
1041         m_mode = mode;
1042         createView();
1043         emit modeChanged();
1044     }
1045     if (itemView() == 0) {
1046         createView();
1047     }
1048     Q_ASSERT(itemView() != 0);
1049     Q_ASSERT(m_fileItemDelegate != 0);
1050
1051     const bool showHiddenFiles = props.showHiddenFiles();
1052     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
1053         m_dirLister->setShowingDotFiles(showHiddenFiles);
1054         emit showHiddenFilesChanged();
1055     }
1056
1057     m_storedCategorizedSorting = props.categorizedSorting();
1058     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1059     if (categorized != m_proxyModel->isCategorizedModel()) {
1060         m_proxyModel->setCategorizedModel(categorized);
1061         emit categorizedSortingChanged();
1062     }
1063
1064     const DolphinView::Sorting sorting = props.sorting();
1065     if (sorting != m_proxyModel->sorting()) {
1066         m_proxyModel->setSorting(sorting);
1067         emit sortingChanged(sorting);
1068     }
1069
1070     const Qt::SortOrder sortOrder = props.sortOrder();
1071     if (sortOrder != m_proxyModel->sortOrder()) {
1072         m_proxyModel->setSortOrder(sortOrder);
1073         emit sortOrderChanged(sortOrder);
1074     }
1075
1076     KFileItemDelegate::InformationList info = props.additionalInfo();
1077     if (info != m_fileItemDelegate->showInformation()) {
1078         m_fileItemDelegate->setShowInformation(info);
1079         emit additionalInfoChanged();
1080     }
1081
1082     const bool showPreview = props.showPreview();
1083     if (showPreview != m_showPreview) {
1084         m_showPreview = showPreview;
1085         m_iconManager->setShowPreview(showPreview);
1086         emit showPreviewChanged();
1087     }
1088 }
1089
1090 void DolphinView::createView()
1091 {
1092     deleteView();
1093     Q_ASSERT(m_iconsView == 0);
1094     Q_ASSERT(m_detailsView == 0);
1095     Q_ASSERT(m_columnView == 0);
1096
1097     QAbstractItemView* view = 0;
1098     switch (m_mode) {
1099     case IconsView: {
1100         m_iconsView = new DolphinIconsView(this, m_controller);
1101         view = m_iconsView;
1102         break;
1103     }
1104
1105     case DetailsView:
1106         m_detailsView = new DolphinDetailsView(this, m_controller);
1107         view = m_detailsView;
1108         break;
1109
1110     case ColumnView:
1111         m_columnView = new DolphinColumnView(this, m_controller);
1112         view = m_columnView;
1113         break;
1114     }
1115
1116     Q_ASSERT(view != 0);
1117     view->installEventFilter(this);
1118
1119     m_controller->setItemView(view);
1120
1121     m_fileItemDelegate = new KFileItemDelegate(view);
1122     view->setItemDelegate(m_fileItemDelegate);
1123
1124     view->setModel(m_proxyModel);
1125     if (m_selectionModel != 0) {
1126         view->setSelectionModel(m_selectionModel);
1127     } else {
1128         m_selectionModel = view->selectionModel();
1129     }
1130
1131     // reparent the selection model, as it should not be deleted
1132     // when deleting the model
1133     m_selectionModel->setParent(this);
1134
1135     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
1136
1137     m_iconManager = new IconManager(view, m_proxyModel);
1138     m_iconManager->setShowPreview(m_showPreview);
1139
1140     if (DolphinSettings::instance().generalSettings()->showToolTips()) {
1141         m_toolTipManager = new ToolTipManager(view, m_proxyModel);
1142     }
1143
1144     m_topLayout->insertWidget(1, view);
1145
1146     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
1147             this, SLOT(emitSelectionChangedSignal()));
1148     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
1149             this, SLOT(emitContentsMoved()));
1150     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
1151             this, SLOT(emitContentsMoved()));
1152 }
1153
1154 void DolphinView::deleteView()
1155 {
1156     QAbstractItemView* view = itemView();
1157     if (view != 0) {
1158         // It's important to set the keyboard focus to the parent
1159         // before deleting the view: Otherwise when having a split
1160         // view the other view will get the focus and will request
1161         // an activation (see DolphinView::eventFilter()).
1162         setFocus();
1163
1164         m_topLayout->removeWidget(view);
1165         view->close();
1166         view->deleteLater();
1167         view = 0;
1168         m_iconsView = 0;
1169         m_detailsView = 0;
1170         m_columnView = 0;
1171         m_fileItemDelegate = 0;
1172         m_iconManager = 0;
1173         m_toolTipManager = 0;
1174     }
1175 }
1176
1177 QAbstractItemView* DolphinView::itemView() const
1178 {
1179     if (m_detailsView != 0) {
1180         return m_detailsView;
1181     } else if (m_columnView != 0) {
1182         return m_columnView;
1183     }
1184
1185     return m_iconsView;
1186 }
1187
1188 bool DolphinView::isCutItem(const KFileItem& item) const
1189 {
1190     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
1191     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
1192
1193     const KUrl& itemUrl = item.url();
1194     KUrl::List::const_iterator it = cutUrls.begin();
1195     const KUrl::List::const_iterator end = cutUrls.end();
1196     while (it != end) {
1197         if (*it == itemUrl) {
1198             return true;
1199         }
1200         ++it;
1201     }
1202
1203     return false;
1204 }
1205
1206 void DolphinView::pasteToUrl(const KUrl& url)
1207 {
1208     QClipboard* clipboard = QApplication::clipboard();
1209     const QMimeData* mimeData = clipboard->mimeData();
1210
1211     const KUrl::List sourceUrls = KUrl::List::fromMimeData(mimeData);
1212     if (KonqMimeData::decodeIsCutSelection(mimeData)) {
1213         KonqOperations::copy(this, KonqOperations::MOVE, sourceUrls, url);
1214         emit doingOperation(KIO::FileUndoManager::Move);
1215         clipboard->clear();
1216     } else {
1217         KonqOperations::copy(this, KonqOperations::COPY, sourceUrls, url);
1218         emit doingOperation(KIO::FileUndoManager::Copy);
1219     }
1220 }
1221
1222 void DolphinView::slotRequestUrlChange(const KUrl& url)
1223 {
1224     emit requestUrlChange(url);
1225     m_controller->setUrl(url);
1226 }
1227
1228 void DolphinView::slotRedirection(const KUrl& oldUrl, const KUrl& newUrl)
1229 {
1230     if (oldUrl == m_controller->url()) {
1231         m_controller->setUrl(newUrl);
1232     }
1233 }
1234
1235 #include "dolphinview.moc"