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