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 "dolphin_detailsmodesettings.h"
  57 #include "dolphiniconsview.h"
  58 #include "dolphinsettings.h"
  59 #include "dolphin_generalsettings.h"
  60 #include "folderexpander.h"
  61 #include "iconmanager.h"
  62 #include "renamedialog.h"
  63 #include "tooltipmanager.h"
  64 #include "viewproperties.h"
  65
  66 DolphinView::DolphinView(QWidget* parent,
  67                          const KUrl& url,
  68                          KDirLister* dirLister,
  69                          DolphinModel* dolphinModel,
  70                          DolphinSortFilterProxyModel* proxyModel) :
  71     QWidget(parent),
  72     m_active(true),
  73     m_showPreview(false),
  74     m_loadingDirectory(false),
  75     m_storedCategorizedSorting(false),
  76     m_tabsForFiles(false),
  77     m_isContextMenuOpen(false),
  78     m_mode(DolphinView::IconsView),
  79     m_topLayout(0),
  80     m_controller(0),
  81     m_iconsView(0),
  82     m_detailsView(0),
  83     m_columnView(0),
  84     m_fileItemDelegate(0),
  85     m_selectionModel(0),
  86     m_dolphinModel(dolphinModel),
  87     m_dirLister(dirLister),
  88     m_proxyModel(proxyModel),
  89     m_iconManager(0),
  90     m_toolTipManager(0),
  91     m_rootUrl(),
  92     m_currentItemUrl()
  93 {
  94     m_topLayout = new QVBoxLayout(this);
  95     m_topLayout->setSpacing(0);
  96     m_topLayout->setMargin(0);
  97
  98     m_controller = new DolphinController(this);
  99     m_controller->setUrl(url);
 100
 101     connect(m_controller, SIGNAL(urlChanged(const KUrl&)),
 102             this, SIGNAL(urlChanged(const KUrl&)));
 103     connect(m_controller, SIGNAL(requestUrlChange(const KUrl&)),
 104             this, SLOT(slotRequestUrlChange(const KUrl&)));
 105
 106     connect(m_controller, SIGNAL(requestContextMenu(const QPoint&)),
 107             this, SLOT(openContextMenu(const QPoint&)));
 108     connect(m_controller, SIGNAL(urlsDropped(const KUrl::List&, const KUrl&, const KFileItem&)),
 109             this, SLOT(dropUrls(const KUrl::List&, const KUrl&, const KFileItem&)));
 110     connect(m_controller, SIGNAL(sortingChanged(DolphinView::Sorting)),
 111             this, SLOT(updateSorting(DolphinView::Sorting)));
 112     connect(m_controller, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 113             this, SLOT(updateSortOrder(Qt::SortOrder)));
 114     connect(m_controller, SIGNAL(additionalInfoChanged(const KFileItemDelegate::InformationList&)),
 115             this, SLOT(updateAdditionalInfo(const KFileItemDelegate::InformationList&)));
 116     connect(m_controller, SIGNAL(itemTriggered(const KFileItem&)),
 117             this, SLOT(triggerItem(const KFileItem&)));
 118     connect(m_controller, SIGNAL(tabRequested(const KUrl&)),
 119             this, SIGNAL(tabRequested(const KUrl&)));
 120     connect(m_controller, SIGNAL(activated()),
 121             this, SLOT(activate()));
 122     connect(m_controller, SIGNAL(itemEntered(const KFileItem&)),
 123             this, SLOT(showHoverInformation(const KFileItem&)));
 124     connect(m_controller, SIGNAL(viewportEntered()),
 125             this, SLOT(clearHoverInformation()));
 126
 127     connect(m_dirLister, SIGNAL(redirection(KUrl, KUrl)),
 128             this, SLOT(slotRedirection(KUrl, KUrl)));
 129     connect(m_dirLister, SIGNAL(completed()),
 130             this, SLOT(restoreCurrentItem()));
 131
 132     applyViewProperties(url);
 133     m_topLayout->addWidget(itemView());
 134 }
 135
 136 DolphinView::~DolphinView()
 137 {
 138 }
 139
 140 const KUrl& DolphinView::url() const
 141 {
 142     return m_controller->url();
 143 }
 144
 145 KUrl DolphinView::rootUrl() const
 146 {
 147     return isColumnViewActive() ? m_columnView->rootUrl() : url();
 148 }
 149
 150 void DolphinView::setActive(bool active)
 151 {
 152     if (active == m_active) {
 153         return;
 154     }
 155
 156     m_active = active;
 157
 158     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 159     if (active) {
 160         // TODO: emitting urlChanged() is a hack, as the URL hasn't really changed. It
 161         // bypasses the problem when having a split view and changing the active view to
 162         // update the some URL dependent states. A nicer approach should be no big deal...
 163         emit urlChanged(url());
 164         emit selectionChanged(selectedItems());
 165     } else {
 166         color.setAlpha(150);
 167     }
 168
 169     QWidget* viewport = itemView()->viewport();
 170     QPalette palette;
 171     palette.setColor(viewport->backgroundRole(), color);
 172     viewport->setPalette(palette);
 173
 174     update();
 175
 176     if (active) {
 177         itemView()->setFocus();
 178         emit activated();
 179     }
 180
 181     m_controller->indicateActivationChange(active);
 182 }
 183
 184 bool DolphinView::isActive() const
 185 {
 186     return m_active;
 187 }
 188
 189 void DolphinView::setMode(Mode mode)
 190 {
 191     if (mode == m_mode) {
 192         return; // the wished mode is already set
 193     }
 194
 195     m_mode = mode;
 196
 197     deleteView();
 198
 199     const KUrl viewPropsUrl = viewPropertiesUrl();
 200     ViewProperties props(viewPropsUrl);
 201     props.setViewMode(m_mode);
 202     createView();
 203
 204     // the file item delegate has been recreated, apply the current
 205     // additional information manually
 206     const KFileItemDelegate::InformationList infoList = props.additionalInfo();
 207     m_fileItemDelegate->setShowInformation(infoList);
 208     emit additionalInfoChanged();
 209
 210     // Not all view modes support categorized sorting. Adjust the sorting model
 211     // if changing the view mode results in a change of the categorized sorting
 212     // capabilities.
 213     m_storedCategorizedSorting = props.categorizedSorting();
 214     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 215     if (categorized != m_proxyModel->isCategorizedModel()) {
 216         m_proxyModel->setCategorizedModel(categorized);
 217         emit categorizedSortingChanged();
 218     }
 219
 220     emit modeChanged();
 221 }
 222
 223 DolphinView::Mode DolphinView::mode() const
 224 {
 225     return m_mode;
 226 }
 227
 228 bool DolphinView::showPreview() const
 229 {
 230     return m_showPreview;
 231 }
 232
 233 bool DolphinView::showHiddenFiles() const
 234 {
 235     return m_dirLister->showingDotFiles();
 236 }
 237
 238 bool DolphinView::categorizedSorting() const
 239 {
 240     // If all view modes would support categorized sorting, returning
 241     // m_proxyModel->isCategorizedModel() would be the way to go. As
 242     // currently only the icons view supports caterized sorting, we remember
 243     // the stored view properties state in m_storedCategorizedSorting and
 244     // return this state. The application takes care to disable the corresponding
 245     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 246     // that this setting is not applied to the current view mode.
 247     return m_storedCategorizedSorting;
 248 }
 249
 250 bool DolphinView::supportsCategorizedSorting() const
 251 {
 252     return m_iconsView != 0;
 253 }
 254
 255 void DolphinView::selectAll()
 256 {
 257     QAbstractItemView* view = itemView();
 258     // TODO: there seems to be a bug in QAbstractItemView::selectAll(); if
 259     // the Ctrl-key is pressed (e. g. for Ctrl+A), selectAll() inverts the
 260     // selection instead of selecting all items. This is bypassed for KDE 4.0
 261     // by invoking clearSelection() first.
 262     view->clearSelection();
 263     view->selectAll();
 264 }
 265
 266 void DolphinView::invertSelection()
 267 {
 268     if (isColumnViewActive()) {
 269         // QAbstractItemView does not offer a virtual method invertSelection()
 270         // as counterpart to QAbstractItemView::selectAll(). This makes it
 271         // necessary to delegate the inverting of the selection to the
 272         // column view, as only the selection of the active column should
 273         // get inverted.
 274         m_columnView->invertSelection();
 275     } else {
 276         QItemSelectionModel* selectionModel = itemView()->selectionModel();
 277         const QAbstractItemModel* itemModel = selectionModel->model();
 278
 279         const QModelIndex topLeft = itemModel->index(0, 0);
 280         const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 281                                                          itemModel->columnCount() - 1);
 282
 283         const QItemSelection selection(topLeft, bottomRight);
 284         selectionModel->select(selection, QItemSelectionModel::Toggle);
 285     }
 286 }
 287
 288 bool DolphinView::hasSelection() const
 289 {
 290     return itemView()->selectionModel()->hasSelection();
 291 }
 292
 293 void DolphinView::clearSelection()
 294 {
 295     itemView()->selectionModel()->clear();
 296 }
 297
 298 KFileItemList DolphinView::selectedItems() const
 299 {
 300     if (isColumnViewActive()) {
 301         return m_columnView->selectedItems();
 302     }
 303
 304     const QAbstractItemView* view = itemView();
 305
 306     // Our view has a selection, we will map them back to the DolphinModel
 307     // and then fill the KFileItemList.
 308     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 309
 310     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 311     KFileItemList itemList;
 312
 313     const QModelIndexList indexList = selection.indexes();
 314     foreach (const QModelIndex &index, indexList) {
 315         KFileItem item = m_dolphinModel->itemForIndex(index);
 316         if (!item.isNull()) {
 317             itemList.append(item);
 318         }
 319     }
 320
 321     return itemList;
 322 }
 323
 324 KUrl::List DolphinView::selectedUrls() const
 325 {
 326     KUrl::List urls;
 327     const KFileItemList list = selectedItems();
 328     foreach (const KFileItem &item, list) {
 329         urls.append(item.url());
 330     }
 331     return urls;
 332 }
 333
 334 int DolphinView::selectedItemsCount() const
 335 {
 336     if (isColumnViewActive()) {
 337         // TODO: get rid of this special case by adjusting the dir lister
 338         // to the current column
 339         return m_columnView->selectedItems().count();
 340     }
 341
 342     return itemView()->selectionModel()->selection().count();
 343 }
 344
 345 void DolphinView::setContentsPosition(int x, int y)
 346 {
 347     QAbstractItemView* view = itemView();
 348
 349     // the ColumnView takes care itself for the horizontal scrolling
 350     if (!isColumnViewActive()) {
 351         view->horizontalScrollBar()->setValue(x);
 352     }
 353     view->verticalScrollBar()->setValue(y);
 354
 355     m_loadingDirectory = false;
 356 }
 357
 358 QPoint DolphinView::contentsPosition() const
 359 {
 360     const int x = itemView()->horizontalScrollBar()->value();
 361     const int y = itemView()->verticalScrollBar()->value();
 362     return QPoint(x, y);
 363 }
 364
 365 void DolphinView::setZoomLevel(int level)
 366 {
 367     if (level < zoomLevelMinimum()) {
 368         level = zoomLevelMinimum();
 369     } else if (level > zoomLevelMaximum()) {
 370         level = zoomLevelMaximum();
 371     }
 372
 373     if (level != zoomLevel()) {
 374         m_controller->setZoomLevel(level);
 375         m_iconManager->updatePreviews();
 376         emit zoomLevelChanged(level);
 377     }
 378 }
 379
 380 int DolphinView::zoomLevel() const
 381 {
 382     return m_controller->zoomLevel();
 383 }
 384
 385 int DolphinView::zoomLevelMinimum() const
 386 {
 387     return m_controller->zoomLevelMinimum();
 388 }
 389
 390 int DolphinView::zoomLevelMaximum() const
 391 {
 392     return m_controller->zoomLevelMaximum();
 393 }
 394
 395 void DolphinView::setSorting(Sorting sorting)
 396 {
 397     if (sorting != this->sorting()) {
 398         updateSorting(sorting);
 399     }
 400 }
 401
 402 DolphinView::Sorting DolphinView::sorting() const
 403 {
 404     return m_proxyModel->sorting();
 405 }
 406
 407 void DolphinView::setSortOrder(Qt::SortOrder order)
 408 {
 409     if (sortOrder() != order) {
 410         updateSortOrder(order);
 411     }
 412 }
 413
 414 Qt::SortOrder DolphinView::sortOrder() const
 415 {
 416     return m_proxyModel->sortOrder();
 417 }
 418
 419 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 420 {
 421     const KUrl viewPropsUrl = viewPropertiesUrl();
 422     ViewProperties props(viewPropsUrl);
 423     props.setAdditionalInfo(info);
 424     m_fileItemDelegate->setShowInformation(info);
 425
 426     emit additionalInfoChanged();
 427
 428     if (itemView() != m_detailsView) {
 429         // the details view requires no reloading of the directory, as it maps
 430         // the file item delegate info to its columns internally
 431         loadDirectory(viewPropsUrl);
 432     }
 433 }
 434
 435 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 436 {
 437     return m_fileItemDelegate->showInformation();
 438 }
 439
 440 void DolphinView::reload()
 441 {
 442     setUrl(url());
 443     loadDirectory(url(), true);
 444 }
 445
 446 void DolphinView::refresh()
 447 {
 448     const bool oldActivationState = m_active;
 449     m_active = true;
 450
 451     createView();
 452     applyViewProperties(m_controller->url());
 453     reload();
 454
 455     setActive(oldActivationState);
 456 }
 457
 458 void DolphinView::updateView(const KUrl& url, const KUrl& rootUrl)
 459 {
 460     if (m_controller->url() == url) {
 461         return;
 462     }
 463
 464     m_iconManager->cancelPreviews();
 465     m_controller->setUrl(url); // emits urlChanged, which we forward
 466
 467     if (!rootUrl.isEmpty() && rootUrl.isParentOf(url)) {
 468         applyViewProperties(rootUrl);
 469         loadDirectory(rootUrl);
 470         if (itemView() == m_columnView) {
 471             m_columnView->setRootUrl(rootUrl);
 472             m_columnView->showColumn(url);
 473         }
 474     } else {
 475         applyViewProperties(url);
 476         loadDirectory(url);
 477     }
 478
 479     emit startedPathLoading(url);
 480 }
 481
 482 void DolphinView::setNameFilter(const QString& nameFilter)
 483 {
 484     m_proxyModel->setFilterRegExp(nameFilter);
 485
 486     if (isColumnViewActive()) {
 487         // adjusting the directory lister is not enough in the case of the
 488         // column view, as each column has its own directory lister internally...
 489         m_columnView->setNameFilter(nameFilter);
 490     }
 491 }
 492
 493 void DolphinView::calculateItemCount(int& fileCount, int& folderCount)
 494 {
 495     foreach (const KFileItem &item, m_dirLister->items()) {
 496         if (item.isDir()) {
 497             ++folderCount;
 498         } else {
 499             ++fileCount;
 500         }
 501     }
 502 }
 503
 504 void DolphinView::setUrl(const KUrl& url)
 505 {
 506     // remember current item candidate (see restoreCurrentItem())
 507     m_currentItemUrl = url;
 508     updateView(url, KUrl());
 509 }
 510
 511 void DolphinView::changeSelection(const KFileItemList& selection)
 512 {
 513     clearSelection();
 514     if (selection.isEmpty()) {
 515         return;
 516     }
 517     const KUrl& baseUrl = url();
 518     KUrl url;
 519     QItemSelection new_selection;
 520     foreach(const KFileItem& item, selection) {
 521         url = item.url().upUrl();
 522         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 523             QModelIndex index = m_proxyModel->mapFromSource(m_dolphinModel->indexForItem(item));
 524             new_selection.select(index, index);
 525         }
 526     }
 527     itemView()->selectionModel()->select(new_selection,
 528                                          QItemSelectionModel::ClearAndSelect
 529                                          | QItemSelectionModel::Current);
 530 }
 531
 532 void DolphinView::renameSelectedItems()
 533 {
 534     const KFileItemList items = selectedItems();
 535     const int itemCount = items.count();
 536     if (itemCount < 1) {
 537         return;
 538     }
 539
 540     if (itemCount > 1) {
 541         // More than one item has been selected for renaming. Open
 542         // a rename dialog and rename all items afterwards.
 543         RenameDialog dialog(this, items);
 544         if (dialog.exec() == QDialog::Rejected) {
 545             return;
 546         }
 547
 548         const QString newName = dialog.newName();
 549         if (newName.isEmpty()) {
 550             emit errorMessage(dialog.errorString());
 551         } else {
 552             // TODO: check how this can be integrated into KIO::FileUndoManager/KonqOperations
 553             // as one operation instead of n rename operations like it is done now...
 554             Q_ASSERT(newName.contains('#'));
 555
 556             // iterate through all selected items and rename them...
 557             int index = 1;
 558             foreach (const KFileItem &item, items) {
 559                 const KUrl& oldUrl = item.url();
 560                 QString number;
 561                 number.setNum(index++);
 562
 563                 QString name = newName;
 564                 name.replace('#', number);
 565
 566                 if (oldUrl.fileName() != name) {
 567                     KUrl newUrl = oldUrl;
 568                     newUrl.setFileName(name);
 569                     KonqOperations::rename(this, oldUrl, newUrl);
 570                     emit doingOperation(KIO::FileUndoManager::Rename);
 571                 }
 572             }
 573         }
 574     } else if (DolphinSettings::instance().generalSettings()->renameInline()) {
 575         Q_ASSERT(itemCount == 1);
 576
 577         if (isColumnViewActive()) {
 578             m_columnView->editItem(items.first());
 579         } else {
 580             const QModelIndex dirIndex = m_dolphinModel->indexForItem(items.first());
 581             const QModelIndex proxyIndex = m_proxyModel->mapFromSource(dirIndex);
 582             itemView()->edit(proxyIndex);
 583         }
 584     } else {
 585         Q_ASSERT(itemCount == 1);
 586
 587         RenameDialog dialog(this, items);
 588         if (dialog.exec() == QDialog::Rejected) {
 589             return;
 590         }
 591
 592         const QString& newName = dialog.newName();
 593         if (newName.isEmpty()) {
 594             emit errorMessage(dialog.errorString());
 595         } else {
 596             const KUrl& oldUrl = items.first().url();
 597             KUrl newUrl = oldUrl;
 598             newUrl.setFileName(newName);
 599             KonqOperations::rename(this, oldUrl, newUrl);
 600             emit doingOperation(KIO::FileUndoManager::Rename);
 601         }
 602     }
 603 }
 604
 605 void DolphinView::trashSelectedItems()
 606 {
 607     emit doingOperation(KIO::FileUndoManager::Trash);
 608     KonqOperations::del(this, KonqOperations::TRASH, selectedUrls());
 609 }
 610
 611 void DolphinView::deleteSelectedItems()
 612 {
 613     const KUrl::List list = selectedUrls();
 614     const bool del = KonqOperations::askDeleteConfirmation(list,
 615                      KonqOperations::DEL,
 616                      KonqOperations::DEFAULT_CONFIRMATION,
 617                      this);
 618
 619     if (del) {
 620         KIO::Job* job = KIO::del(list);
 621         connect(job, SIGNAL(result(KJob*)),
 622                 this, SLOT(slotDeleteFileFinished(KJob*)));
 623     }
 624 }
 625
 626 void DolphinView::cutSelectedItems()
 627 {
 628     QMimeData* mimeData = new QMimeData();
 629     const KUrl::List kdeUrls = selectedUrls();
 630     const KUrl::List mostLocalUrls;
 631     KonqMimeData::populateMimeData(mimeData, kdeUrls, mostLocalUrls, true);
 632     QApplication::clipboard()->setMimeData(mimeData);
 633 }
 634
 635 void DolphinView::copySelectedItems()
 636 {
 637     QMimeData* mimeData = new QMimeData();
 638     const KUrl::List kdeUrls = selectedUrls();
 639     const KUrl::List mostLocalUrls;
 640     KonqMimeData::populateMimeData(mimeData, kdeUrls, mostLocalUrls, false);
 641     QApplication::clipboard()->setMimeData(mimeData);
 642 }
 643
 644 void DolphinView::paste()
 645 {
 646     pasteToUrl(url());
 647 }
 648
 649 void DolphinView::pasteIntoFolder()
 650 {
 651     const KFileItemList items = selectedItems();
 652     if ((items.count() == 1) && items.first().isDir()) {
 653         pasteToUrl(items.first().url());
 654     }
 655 }
 656
 657 void DolphinView::setShowPreview(bool show)
 658 {
 659     if (m_showPreview == show) {
 660         return;
 661     }
 662
 663     const KUrl viewPropsUrl = viewPropertiesUrl();
 664     ViewProperties props(viewPropsUrl);
 665     props.setShowPreview(show);
 666
 667     m_showPreview = show;
 668     m_iconManager->setShowPreview(show);
 669
 670     const int oldZoomLevel = m_controller->zoomLevel();
 671     emit showPreviewChanged();
 672
 673     // Enabling or disabling the preview might change the icon size of the view.
 674     // As the view does not emit a signal when the icon size has been changed,
 675     // the used zoom level of the controller must be adjusted manually:
 676     updateZoomLevel(oldZoomLevel);
 677
 678     loadDirectory(viewPropsUrl);
 679 }
 680
 681 void DolphinView::setShowHiddenFiles(bool show)
 682 {
 683     if (m_dirLister->showingDotFiles() == show) {
 684         return;
 685     }
 686
 687     const KUrl viewPropsUrl = viewPropertiesUrl();
 688     ViewProperties props(viewPropsUrl);
 689     props.setShowHiddenFiles(show);
 690
 691     m_dirLister->setShowingDotFiles(show);
 692     emit showHiddenFilesChanged();
 693
 694     loadDirectory(viewPropsUrl);
 695 }
 696
 697 void DolphinView::setCategorizedSorting(bool categorized)
 698 {
 699     if (categorized == categorizedSorting()) {
 700         return;
 701     }
 702
 703     // setCategorizedSorting(true) may only get invoked
 704     // if the view supports categorized sorting
 705     Q_ASSERT(!categorized || supportsCategorizedSorting());
 706
 707     ViewProperties props(viewPropertiesUrl());
 708     props.setCategorizedSorting(categorized);
 709     props.save();
 710
 711     m_storedCategorizedSorting = categorized;
 712     m_proxyModel->setCategorizedModel(categorized);
 713
 714     emit categorizedSortingChanged();
 715 }
 716
 717 void DolphinView::toggleSortOrder()
 718 {
 719     const Qt::SortOrder order = (sortOrder() == Qt::AscendingOrder) ?
 720                                 Qt::DescendingOrder :
 721                                 Qt::AscendingOrder;
 722     setSortOrder(order);
 723 }
 724
 725 void DolphinView::toggleAdditionalInfo(QAction* action)
 726 {
 727     const KFileItemDelegate::Information info =
 728         static_cast<KFileItemDelegate::Information>(action->data().toInt());
 729
 730     KFileItemDelegate::InformationList list = additionalInfo();
 731
 732     const bool show = action->isChecked();
 733
 734     const int index = list.indexOf(info);
 735     const bool containsInfo = (index >= 0);
 736     if (show && !containsInfo) {
 737         list.append(info);
 738         setAdditionalInfo(list);
 739     } else if (!show && containsInfo) {
 740         list.removeAt(index);
 741         setAdditionalInfo(list);
 742         Q_ASSERT(list.indexOf(info) < 0);
 743     }
 744 }
 745
 746 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 747 {
 748     QWidget::mouseReleaseEvent(event);
 749     setActive(true);
 750 }
 751
 752 void DolphinView::wheelEvent(QWheelEvent* event)
 753 {
 754     if (event->modifiers() & Qt::ControlModifier) {
 755         const int delta = event->delta();
 756         const int level = zoomLevel();
 757         if (delta > 0) {
 758             setZoomLevel(level + 1);
 759         } else if (delta < 0) {
 760             setZoomLevel(level - 1);
 761         }
 762         event->accept();
 763     }
 764 }
 765
 766 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 767 {
 768     if ((watched == itemView()) && (event->type() == QEvent::FocusIn)) {
 769         m_controller->requestActivation();
 770     }
 771
 772     return QWidget::eventFilter(watched, event);
 773 }
 774
 775 void DolphinView::activate()
 776 {
 777     setActive(true);
 778 }
 779
 780 void DolphinView::triggerItem(const KFileItem& item)
 781 {
 782     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 783     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 784         // items are selected by the user, hence don't trigger the
 785         // item specified by 'index'
 786         return;
 787     }
 788
 789     // TODO: the m_isContextMenuOpen check is a workaround for Qt-issue 207192
 790     if (item.isNull() || m_isContextMenuOpen) {
 791         return;
 792     }
 793
 794     if (m_toolTipManager != 0) {
 795         m_toolTipManager->hideTip();
 796     }
 797     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 798 }
 799
 800 void DolphinView::emitSelectionChangedSignal()
 801 {
 802     emit selectionChanged(DolphinView::selectedItems());
 803 }
 804
 805 void DolphinView::openContextMenu(const QPoint& pos)
 806 {
 807     KFileItem item;
 808     if (isColumnViewActive()) {
 809         item = m_columnView->itemAt(pos);
 810     } else {
 811         const QModelIndex index = itemView()->indexAt(pos);
 812         if (index.isValid() && (index.column() == DolphinModel::Name)) {
 813             const QModelIndex dolphinModelIndex = m_proxyModel->mapToSource(index);
 814             item = m_dolphinModel->itemForIndex(dolphinModelIndex);
 815         }
 816     }
 817
 818     if (m_toolTipManager != 0) {
 819         m_toolTipManager->hideTip();
 820     }
 821
 822     m_isContextMenuOpen = true; // TODO: workaround for Qt-issue 207192
 823     emit requestContextMenu(item, url());
 824     m_isContextMenuOpen = false;
 825 }
 826
 827 void DolphinView::dropUrls(const KUrl::List& urls,
 828                            const KUrl& destPath,
 829                            const KFileItem& destItem)
 830 {
 831     Q_ASSERT(!urls.isEmpty());
 832     const KUrl destination = !destItem.isNull() && destItem.isDir() ?
 833                              destItem.url() : destPath;
 834     const KUrl sourceDir = KUrl(urls.first().directory());
 835     if (sourceDir != destination) {
 836         DolphinDropController dropController(this);
 837         // forward doingOperation signal up to the mainwindow
 838         connect(&dropController, SIGNAL(doingOperation(KIO::FileUndoManager::CommandType)),
 839                 this, SIGNAL(doingOperation(KIO::FileUndoManager::CommandType)));
 840         dropController.dropUrls(urls, destination);
 841     }
 842 }
 843
 844 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 845 {
 846     ViewProperties props(viewPropertiesUrl());
 847     props.setSorting(sorting);
 848
 849     m_proxyModel->setSorting(sorting);
 850
 851     emit sortingChanged(sorting);
 852 }
 853
 854 void DolphinView::updateSortOrder(Qt::SortOrder order)
 855 {
 856     ViewProperties props(viewPropertiesUrl());
 857     props.setSortOrder(order);
 858
 859     m_proxyModel->setSortOrder(order);
 860
 861     emit sortOrderChanged(order);
 862 }
 863
 864 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 865 {
 866     ViewProperties props(viewPropertiesUrl());
 867     props.setAdditionalInfo(info);
 868     props.save();
 869
 870     m_fileItemDelegate->setShowInformation(info);
 871
 872     emit additionalInfoChanged();
 873 }
 874
 875 void DolphinView::updateAdditionalInfoActions(KActionCollection* collection)
 876 {
 877     const bool enable = (m_mode == DolphinView::DetailsView) ||
 878                         (m_mode == DolphinView::IconsView);
 879
 880     QAction* showSizeInfo = collection->action("show_size_info");
 881     QAction* showDateInfo = collection->action("show_date_info");
 882     QAction* showPermissionsInfo = collection->action("show_permissions_info");
 883     QAction* showOwnerInfo = collection->action("show_owner_info");
 884     QAction* showGroupInfo = collection->action("show_group_info");
 885     QAction* showMimeInfo = collection->action("show_mime_info");
 886
 887     showSizeInfo->setChecked(false);
 888     showDateInfo->setChecked(false);
 889     showPermissionsInfo->setChecked(false);
 890     showOwnerInfo->setChecked(false);
 891     showGroupInfo->setChecked(false);
 892     showMimeInfo->setChecked(false);
 893
 894     showSizeInfo->setEnabled(enable);
 895     showDateInfo->setEnabled(enable);
 896     showPermissionsInfo->setEnabled(enable);
 897     showOwnerInfo->setEnabled(enable);
 898     showGroupInfo->setEnabled(enable);
 899     showMimeInfo->setEnabled(enable);
 900
 901     foreach (KFileItemDelegate::Information info, m_fileItemDelegate->showInformation()) {
 902         switch (info) {
 903         case KFileItemDelegate::Size:
 904             showSizeInfo->setChecked(true);
 905             break;
 906         case KFileItemDelegate::ModificationTime:
 907             showDateInfo->setChecked(true);
 908             break;
 909         case KFileItemDelegate::Permissions:
 910             showPermissionsInfo->setChecked(true);
 911             break;
 912         case KFileItemDelegate::Owner:
 913             showOwnerInfo->setChecked(true);
 914             break;
 915         case KFileItemDelegate::OwnerAndGroup:
 916             showGroupInfo->setChecked(true);
 917             break;
 918         case KFileItemDelegate::FriendlyMimeType:
 919             showMimeInfo->setChecked(true);
 920             break;
 921         default:
 922             break;
 923         }
 924     }
 925 }
 926
 927 QPair<bool, QString> DolphinView::pasteInfo() const
 928 {
 929     QPair<bool, QString> ret;
 930     QClipboard* clipboard = QApplication::clipboard();
 931     const QMimeData* mimeData = clipboard->mimeData();
 932
 933     KUrl::List urls = KUrl::List::fromMimeData(mimeData);
 934     if (!urls.isEmpty()) {
 935         // disable the paste action if no writing is supported
 936         KFileItem item(KFileItem::Unknown, KFileItem::Unknown, url());
 937         ret.first = KonqFileItemCapabilities(KFileItemList() << item).supportsWriting();
 938
 939         if (urls.count() == 1) {
 940             const KFileItem item(KFileItem::Unknown, KFileItem::Unknown, urls.first(), true);
 941             ret.second = item.isDir() ? i18nc("@action:inmenu", "Paste One Folder") :
 942                                         i18nc("@action:inmenu", "Paste One File");
 943
 944         } else {
 945             ret.second = i18ncp("@action:inmenu", "Paste One Item", "Paste %1 Items", urls.count());
 946         }
 947     } else {
 948         ret.first = false;
 949         ret.second = i18nc("@action:inmenu", "Paste");
 950     }
 951
 952     return ret;
 953 }
 954
 955 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
 956 {
 957     m_tabsForFiles = tabsForFiles;
 958 }
 959
 960 bool DolphinView::isTabsForFilesEnabled() const
 961 {
 962     return m_tabsForFiles;
 963 }
 964
 965 void DolphinView::emitContentsMoved()
 966 {
 967     // only emit the contents moved signal if:
 968     // - no directory loading is ongoing (this would reset the contents position
 969     //   always to (0, 0))
 970     // - if the Column View is active: the column view does an automatic
 971     //   positioning during the loading operation, which must be remembered
 972     if (!m_loadingDirectory || isColumnViewActive()) {
 973         const QPoint pos(contentsPosition());
 974         emit contentsMoved(pos.x(), pos.y());
 975     }
 976 }
 977
 978 void DolphinView::showHoverInformation(const KFileItem& item)
 979 {
 980     emit requestItemInfo(item);
 981 }
 982
 983 void DolphinView::clearHoverInformation()
 984 {
 985     emit requestItemInfo(KFileItem());
 986 }
 987
 988 void DolphinView::slotDeleteFileFinished(KJob* job)
 989 {
 990     if (job->error() == 0) {
 991         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
 992     } else {
 993         emit errorMessage(job->errorString());
 994     }
 995 }
 996
 997 void DolphinView::slotRedirection(const KUrl& oldUrl, const KUrl& newUrl)
 998 {
 999     if (oldUrl == m_controller->url()) {
1000         m_controller->setUrl(newUrl);
1001     }
1002 }
1003
1004 void DolphinView::slotRequestUrlChange(const KUrl& url)
1005 {
1006     emit requestUrlChange(url);
1007     m_controller->setUrl(url);
1008 }
1009
1010 void DolphinView::restoreCurrentItem()
1011 {
1012     const QModelIndex dirIndex = m_dolphinModel->indexForUrl(m_currentItemUrl);
1013     if (dirIndex.isValid()) {
1014         const QModelIndex proxyIndex = m_proxyModel->mapFromSource(dirIndex);
1015         QAbstractItemView* view = itemView();
1016         const bool clearSelection = !hasSelection();
1017         view->setCurrentIndex(proxyIndex);
1018         if (clearSelection) {
1019             view->clearSelection();
1020         }
1021     }
1022 }
1023
1024 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1025 {
1026     if (!url.isValid()) {
1027         const QString location(url.pathOrUrl());
1028         if (location.isEmpty()) {
1029             emit errorMessage(i18nc("@info:status", "The location is empty."));
1030         } else {
1031             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1032         }
1033         return;
1034     }
1035
1036     m_loadingDirectory = true;
1037
1038     m_dirLister->stop();
1039     m_dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
1040
1041     if (isColumnViewActive()) {
1042         // adjusting the directory lister is not enough in the case of the
1043         // column view, as each column has its own directory lister internally...
1044         if (reload) {
1045             m_columnView->reload();
1046         } else {
1047             m_columnView->showColumn(url);
1048         }
1049     }
1050 }
1051
1052 KUrl DolphinView::viewPropertiesUrl() const
1053 {
1054     if (isColumnViewActive()) {
1055         return m_columnView->rootUrl();
1056     }
1057
1058     return url();
1059 }
1060
1061 void DolphinView::applyViewProperties(const KUrl& url)
1062 {
1063     if (isColumnViewActive() && rootUrl().isParentOf(url)) {
1064         // The column view is active, hence don't apply the view properties
1065         // of sub directories (represented by columns) to the view. The
1066         // view always represents the properties of the first column.
1067         return;
1068     }
1069
1070     const ViewProperties props(url);
1071
1072     const Mode mode = props.viewMode();
1073     if (m_mode != mode) {
1074         m_mode = mode;
1075         createView();
1076         emit modeChanged();
1077     }
1078     if (itemView() == 0) {
1079         createView();
1080     }
1081     Q_ASSERT(itemView() != 0);
1082     Q_ASSERT(m_fileItemDelegate != 0);
1083
1084     const bool showHiddenFiles = props.showHiddenFiles();
1085     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
1086         m_dirLister->setShowingDotFiles(showHiddenFiles);
1087         emit showHiddenFilesChanged();
1088     }
1089
1090     m_storedCategorizedSorting = props.categorizedSorting();
1091     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1092     if (categorized != m_proxyModel->isCategorizedModel()) {
1093         m_proxyModel->setCategorizedModel(categorized);
1094         emit categorizedSortingChanged();
1095     }
1096
1097     const DolphinView::Sorting sorting = props.sorting();
1098     if (sorting != m_proxyModel->sorting()) {
1099         m_proxyModel->setSorting(sorting);
1100         emit sortingChanged(sorting);
1101     }
1102
1103     const Qt::SortOrder sortOrder = props.sortOrder();
1104     if (sortOrder != m_proxyModel->sortOrder()) {
1105         m_proxyModel->setSortOrder(sortOrder);
1106         emit sortOrderChanged(sortOrder);
1107     }
1108
1109     KFileItemDelegate::InformationList info = props.additionalInfo();
1110     if (info != m_fileItemDelegate->showInformation()) {
1111         m_fileItemDelegate->setShowInformation(info);
1112         emit additionalInfoChanged();
1113     }
1114
1115     const bool showPreview = props.showPreview();
1116     if (showPreview != m_showPreview) {
1117         m_showPreview = showPreview;
1118         m_iconManager->setShowPreview(showPreview);
1119
1120         const int oldZoomLevel = m_controller->zoomLevel();
1121         emit showPreviewChanged();
1122
1123         // Enabling or disabling the preview might change the icon size of the view.
1124         // As the view does not emit a signal when the icon size has been changed,
1125         // the used zoom level of the controller must be adjusted manually:
1126         updateZoomLevel(oldZoomLevel);
1127     }
1128 }
1129
1130 void DolphinView::createView()
1131 {
1132     deleteView();
1133     Q_ASSERT(m_iconsView == 0);
1134     Q_ASSERT(m_detailsView == 0);
1135     Q_ASSERT(m_columnView == 0);
1136
1137     QAbstractItemView* view = 0;
1138     switch (m_mode) {
1139     case IconsView: {
1140         m_iconsView = new DolphinIconsView(this, m_controller);
1141         view = m_iconsView;
1142         break;
1143     }
1144
1145     case DetailsView:
1146         m_detailsView = new DolphinDetailsView(this, m_controller);
1147         view = m_detailsView;
1148         break;
1149
1150     case ColumnView:
1151         m_columnView = new DolphinColumnView(this, m_controller);
1152         view = m_columnView;
1153         break;
1154     }
1155
1156     Q_ASSERT(view != 0);
1157     view->installEventFilter(this);
1158
1159     if (m_mode != ColumnView) {
1160         // Give the view the ability to auto-expand its directories on hovering
1161         // (the column view takes care about this itself). If the details view
1162         // uses expandable folders, the auto-expanding should be used always.
1163         DolphinSettings& settings = DolphinSettings::instance();
1164         const bool enabled = settings.generalSettings()->autoExpandFolders() ||
1165                             ((m_detailsView != 0) && settings.detailsModeSettings()->expandableFolders());
1166
1167         FolderExpander* folderExpander = new FolderExpander(view, m_proxyModel);
1168         folderExpander->setEnabled(enabled);
1169         connect(folderExpander, SIGNAL(enterDir(const QModelIndex&)),
1170                 m_controller, SLOT(triggerItem(const QModelIndex&)));
1171     }
1172
1173     m_controller->setItemView(view);
1174
1175     m_fileItemDelegate = new KFileItemDelegate(view);
1176     view->setItemDelegate(m_fileItemDelegate);
1177
1178     view->setModel(m_proxyModel);
1179     if (m_selectionModel != 0) {
1180         view->setSelectionModel(m_selectionModel);
1181     } else {
1182         m_selectionModel = view->selectionModel();
1183     }
1184
1185     // reparent the selection model, as it should not be deleted
1186     // when deleting the model
1187     m_selectionModel->setParent(this);
1188
1189     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
1190
1191     m_iconManager = new IconManager(view, m_proxyModel);
1192     m_iconManager->setShowPreview(m_showPreview);
1193
1194     if (DolphinSettings::instance().generalSettings()->showToolTips()) {
1195         m_toolTipManager = new ToolTipManager(view, m_proxyModel);
1196     }
1197
1198     m_topLayout->insertWidget(1, view);
1199
1200     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
1201             this, SLOT(emitSelectionChangedSignal()));
1202     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
1203             this, SLOT(emitContentsMoved()));
1204     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
1205             this, SLOT(emitContentsMoved()));
1206 }
1207
1208 void DolphinView::deleteView()
1209 {
1210     QAbstractItemView* view = itemView();
1211     if (view != 0) {
1212         // It's important to set the keyboard focus to the parent
1213         // before deleting the view: Otherwise when having a split
1214         // view the other view will get the focus and will request
1215         // an activation (see DolphinView::eventFilter()).
1216         setFocus();
1217
1218         m_topLayout->removeWidget(view);
1219         view->close();
1220         view->deleteLater();
1221         view = 0;
1222         m_iconsView = 0;
1223         m_detailsView = 0;
1224         m_columnView = 0;
1225         m_fileItemDelegate = 0;
1226         m_iconManager = 0;
1227         m_toolTipManager = 0;
1228     }
1229 }
1230
1231 QAbstractItemView* DolphinView::itemView() const
1232 {
1233     if (m_detailsView != 0) {
1234         return m_detailsView;
1235     } else if (m_columnView != 0) {
1236         return m_columnView;
1237     }
1238
1239     return m_iconsView;
1240 }
1241
1242 bool DolphinView::isCutItem(const KFileItem& item) const
1243 {
1244     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
1245     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
1246
1247     const KUrl& itemUrl = item.url();
1248     KUrl::List::const_iterator it = cutUrls.begin();
1249     const KUrl::List::const_iterator end = cutUrls.end();
1250     while (it != end) {
1251         if (*it == itemUrl) {
1252             return true;
1253         }
1254         ++it;
1255     }
1256
1257     return false;
1258 }
1259
1260 void DolphinView::pasteToUrl(const KUrl& url)
1261 {
1262     QClipboard* clipboard = QApplication::clipboard();
1263     const QMimeData* mimeData = clipboard->mimeData();
1264
1265     const KUrl::List sourceUrls = KUrl::List::fromMimeData(mimeData);
1266     if (KonqMimeData::decodeIsCutSelection(mimeData)) {
1267         KonqOperations::copy(this, KonqOperations::MOVE, sourceUrls, url);
1268         emit doingOperation(KIO::FileUndoManager::Move);
1269         clipboard->clear();
1270     } else {
1271         KonqOperations::copy(this, KonqOperations::COPY, sourceUrls, url);
1272         emit doingOperation(KIO::FileUndoManager::Copy);
1273     }
1274 }
1275
1276 void DolphinView::updateZoomLevel(int oldZoomLevel)
1277 {
1278     const int newZoomLevel = DolphinController::zoomLevelForIconSize(itemView()->iconSize());
1279     if (oldZoomLevel != newZoomLevel) {
1280         m_controller->setZoomLevel(newZoomLevel);
1281         emit zoomLevelChanged(newZoomLevel);
1282     }
1283 }
1284
1285 #include "dolphinview.moc"