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 <kfilepreviewgenerator.h>
  36 #include <kiconeffect.h>
  37 #include <klocale.h>
  38 #include <kio/deletejob.h>
  39 #include <kio/netaccess.h>
  40 #include <kio/previewjob.h>
  41 #include <kjob.h>
  42 #include <kmenu.h>
  43 #include <kmessagebox.h>
  44 #include <kmimetyperesolver.h>
  45 #include <konq_fileitemcapabilities.h>
  46 #include <konq_operations.h>
  47 #include <konqmimedata.h>
  48 #include <ktoggleaction.h>
  49 #include <kurl.h>
  50
  51 #include "dolphindropcontroller.h"
  52 #include "dolphinmodel.h"
  53 #include "dolphincolumnview.h"
  54 #include "dolphincontroller.h"
  55 #include "dolphinsortfilterproxymodel.h"
  56 #include "dolphindetailsview.h"
  57 #include "dolphin_detailsmodesettings.h"
  58 #include "dolphiniconsview.h"
  59 #include "dolphinsettings.h"
  60 #include "dolphin_generalsettings.h"
  61 #include "folderexpander.h"
  62 #include "renamedialog.h"
  63 #include "tooltipmanager.h"
  64 #include "viewproperties.h"
  65 #include "zoomlevelinfo.h"
  66
  67 DolphinView::DolphinView(QWidget* parent,
  68                          const KUrl& url,
  69                          KDirLister* dirLister,
  70                          DolphinModel* dolphinModel,
  71                          DolphinSortFilterProxyModel* proxyModel) :
  72     QWidget(parent),
  73     m_active(true),
  74     m_showPreview(false),
  75     m_loadingDirectory(false),
  76     m_storedCategorizedSorting(false),
  77     m_tabsForFiles(false),
  78     m_isContextMenuOpen(false),
  79     m_mode(DolphinView::IconsView),
  80     m_topLayout(0),
  81     m_controller(0),
  82     m_iconsView(0),
  83     m_detailsView(0),
  84     m_columnView(0),
  85     m_fileItemDelegate(0),
  86     m_selectionModel(0),
  87     m_dolphinModel(dolphinModel),
  88     m_dirLister(dirLister),
  89     m_proxyModel(proxyModel),
  90     m_previewGenerator(0),
  91     m_toolTipManager(0),
  92     m_rootUrl(),
  93     m_currentItemUrl()
  94 {
  95     m_topLayout = new QVBoxLayout(this);
  96     m_topLayout->setSpacing(0);
  97     m_topLayout->setMargin(0);
  98
  99     m_controller = new DolphinController(this);
 100     m_controller->setUrl(url);
 101
 102     connect(m_controller, SIGNAL(urlChanged(const KUrl&)),
 103             this, SIGNAL(urlChanged(const KUrl&)));
 104     connect(m_controller, SIGNAL(requestUrlChange(const KUrl&)),
 105             this, SLOT(slotRequestUrlChange(const KUrl&)));
 106
 107     connect(m_controller, SIGNAL(requestContextMenu(const QPoint&)),
 108             this, SLOT(openContextMenu(const QPoint&)));
 109     connect(m_controller, SIGNAL(urlsDropped(const KFileItem&, const KUrl&, QDropEvent*)),
 110             this, SLOT(dropUrls(const KFileItem&, const KUrl&, QDropEvent*)));
 111     connect(m_controller, SIGNAL(sortingChanged(DolphinView::Sorting)),
 112             this, SLOT(updateSorting(DolphinView::Sorting)));
 113     connect(m_controller, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 114             this, SLOT(updateSortOrder(Qt::SortOrder)));
 115     connect(m_controller, SIGNAL(additionalInfoChanged(const KFileItemDelegate::InformationList&)),
 116             this, SLOT(updateAdditionalInfo(const KFileItemDelegate::InformationList&)));
 117     connect(m_controller, SIGNAL(itemTriggered(const KFileItem&)),
 118             this, SLOT(triggerItem(const KFileItem&)));
 119     connect(m_controller, SIGNAL(tabRequested(const KUrl&)),
 120             this, SIGNAL(tabRequested(const KUrl&)));
 121     connect(m_controller, SIGNAL(activated()),
 122             this, SLOT(activate()));
 123     connect(m_controller, SIGNAL(itemEntered(const KFileItem&)),
 124             this, SLOT(showHoverInformation(const KFileItem&)));
 125     connect(m_controller, SIGNAL(viewportEntered()),
 126             this, SLOT(clearHoverInformation()));
 127
 128     connect(m_dirLister, SIGNAL(redirection(KUrl, KUrl)),
 129             this, SLOT(slotRedirection(KUrl, KUrl)));
 130     connect(m_dirLister, SIGNAL(completed()),
 131             this, SLOT(restoreCurrentItem()));
 132
 133     applyViewProperties(url);
 134     m_topLayout->addWidget(itemView());
 135 }
 136
 137 DolphinView::~DolphinView()
 138 {
 139 }
 140
 141 const KUrl& DolphinView::url() const
 142 {
 143     return m_controller->url();
 144 }
 145
 146 KUrl DolphinView::rootUrl() const
 147 {
 148     return isColumnViewActive() ? m_columnView->rootUrl() : url();
 149 }
 150
 151 void DolphinView::setActive(bool active)
 152 {
 153     if (active == m_active) {
 154         return;
 155     }
 156
 157     m_active = active;
 158
 159     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 160     if (active) {
 161         // TODO: emitting urlChanged() is a hack, as the URL hasn't really changed. It
 162         // bypasses the problem when having a split view and changing the active view to
 163         // update the some URL dependent states. A nicer approach should be no big deal...
 164         emit urlChanged(url());
 165         emit selectionChanged(selectedItems());
 166     } else {
 167         color.setAlpha(150);
 168     }
 169
 170     QWidget* viewport = itemView()->viewport();
 171     QPalette palette;
 172     palette.setColor(viewport->backgroundRole(), color);
 173     viewport->setPalette(palette);
 174
 175     update();
 176
 177     if (active) {
 178         itemView()->setFocus();
 179         emit activated();
 180     }
 181
 182     m_controller->indicateActivationChange(active);
 183 }
 184
 185 bool DolphinView::isActive() const
 186 {
 187     return m_active;
 188 }
 189
 190 void DolphinView::setMode(Mode mode)
 191 {
 192     if (mode == m_mode) {
 193         return; // the wished mode is already set
 194     }
 195
 196     m_mode = mode;
 197
 198     deleteView();
 199
 200     const KUrl viewPropsUrl = viewPropertiesUrl();
 201     ViewProperties props(viewPropsUrl);
 202     props.setViewMode(m_mode);
 203     createView();
 204
 205     // the file item delegate has been recreated, apply the current
 206     // additional information manually
 207     const KFileItemDelegate::InformationList infoList = props.additionalInfo();
 208     m_fileItemDelegate->setShowInformation(infoList);
 209     emit additionalInfoChanged();
 210
 211     // Not all view modes support categorized sorting. Adjust the sorting model
 212     // if changing the view mode results in a change of the categorized sorting
 213     // capabilities.
 214     m_storedCategorizedSorting = props.categorizedSorting();
 215     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 216     if (categorized != m_proxyModel->isCategorizedModel()) {
 217         m_proxyModel->setCategorizedModel(categorized);
 218         emit categorizedSortingChanged();
 219     }
 220
 221     emit modeChanged();
 222 }
 223
 224 DolphinView::Mode DolphinView::mode() const
 225 {
 226     return m_mode;
 227 }
 228
 229 bool DolphinView::showPreview() const
 230 {
 231     return m_showPreview;
 232 }
 233
 234 bool DolphinView::showHiddenFiles() const
 235 {
 236     return m_dirLister->showingDotFiles();
 237 }
 238
 239 bool DolphinView::categorizedSorting() const
 240 {
 241     // If all view modes would support categorized sorting, returning
 242     // m_proxyModel->isCategorizedModel() would be the way to go. As
 243     // currently only the icons view supports caterized sorting, we remember
 244     // the stored view properties state in m_storedCategorizedSorting and
 245     // return this state. The application takes care to disable the corresponding
 246     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 247     // that this setting is not applied to the current view mode.
 248     return m_storedCategorizedSorting;
 249 }
 250
 251 bool DolphinView::supportsCategorizedSorting() const
 252 {
 253     return m_iconsView != 0;
 254 }
 255
 256 void DolphinView::selectAll()
 257 {
 258     QAbstractItemView* view = itemView();
 259     // TODO: there seems to be a bug in QAbstractItemView::selectAll(); if
 260     // the Ctrl-key is pressed (e. g. for Ctrl+A), selectAll() inverts the
 261     // selection instead of selecting all items. This is bypassed for KDE 4.0
 262     // by invoking clearSelection() first.
 263     view->clearSelection();
 264     view->selectAll();
 265 }
 266
 267 void DolphinView::invertSelection()
 268 {
 269     if (isColumnViewActive()) {
 270         // QAbstractItemView does not offer a virtual method invertSelection()
 271         // as counterpart to QAbstractItemView::selectAll(). This makes it
 272         // necessary to delegate the inverting of the selection to the
 273         // column view, as only the selection of the active column should
 274         // get inverted.
 275         m_columnView->invertSelection();
 276     } else {
 277         QItemSelectionModel* selectionModel = itemView()->selectionModel();
 278         const QAbstractItemModel* itemModel = selectionModel->model();
 279
 280         const QModelIndex topLeft = itemModel->index(0, 0);
 281         const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 282                                                          itemModel->columnCount() - 1);
 283
 284         const QItemSelection selection(topLeft, bottomRight);
 285         selectionModel->select(selection, QItemSelectionModel::Toggle);
 286     }
 287 }
 288
 289 bool DolphinView::hasSelection() const
 290 {
 291     return itemView()->selectionModel()->hasSelection();
 292 }
 293
 294 void DolphinView::clearSelection()
 295 {
 296     itemView()->selectionModel()->clear();
 297 }
 298
 299 KFileItemList DolphinView::selectedItems() const
 300 {
 301     if (isColumnViewActive()) {
 302         return m_columnView->selectedItems();
 303     }
 304
 305     const QAbstractItemView* view = itemView();
 306
 307     // Our view has a selection, we will map them back to the DolphinModel
 308     // and then fill the KFileItemList.
 309     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 310
 311     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 312     KFileItemList itemList;
 313
 314     const QModelIndexList indexList = selection.indexes();
 315     foreach (const QModelIndex &index, indexList) {
 316         KFileItem item = m_dolphinModel->itemForIndex(index);
 317         if (!item.isNull()) {
 318             itemList.append(item);
 319         }
 320     }
 321
 322     return itemList;
 323 }
 324
 325 KUrl::List DolphinView::selectedUrls() const
 326 {
 327     KUrl::List urls;
 328     const KFileItemList list = selectedItems();
 329     foreach (const KFileItem &item, list) {
 330         urls.append(item.url());
 331     }
 332     return urls;
 333 }
 334
 335 int DolphinView::selectedItemsCount() const
 336 {
 337     if (isColumnViewActive()) {
 338         // TODO: get rid of this special case by adjusting the dir lister
 339         // to the current column
 340         return m_columnView->selectedItems().count();
 341     }
 342
 343     return itemView()->selectionModel()->selection().count();
 344 }
 345
 346 void DolphinView::setContentsPosition(int x, int y)
 347 {
 348     QAbstractItemView* view = itemView();
 349
 350     // the ColumnView takes care itself for the horizontal scrolling
 351     if (!isColumnViewActive()) {
 352         view->horizontalScrollBar()->setValue(x);
 353     }
 354     view->verticalScrollBar()->setValue(y);
 355
 356     m_loadingDirectory = false;
 357 }
 358
 359 QPoint DolphinView::contentsPosition() const
 360 {
 361     const int x = itemView()->horizontalScrollBar()->value();
 362     const int y = itemView()->verticalScrollBar()->value();
 363     return QPoint(x, y);
 364 }
 365
 366 void DolphinView::setZoomLevel(int level)
 367 {
 368     if (level < ZoomLevelInfo::minimumLevel()) {
 369         level = ZoomLevelInfo::minimumLevel();
 370     } else if (level > ZoomLevelInfo::maximumLevel()) {
 371         level = ZoomLevelInfo::maximumLevel();
 372     }
 373
 374     if (level != zoomLevel()) {
 375         m_controller->setZoomLevel(level);
 376         m_previewGenerator->updatePreviews();
 377         emit zoomLevelChanged(level);
 378     }
 379 }
 380
 381 int DolphinView::zoomLevel() const
 382 {
 383     return m_controller->zoomLevel();
 384 }
 385
 386 void DolphinView::setSorting(Sorting sorting)
 387 {
 388     if (sorting != this->sorting()) {
 389         updateSorting(sorting);
 390     }
 391 }
 392
 393 DolphinView::Sorting DolphinView::sorting() const
 394 {
 395     return m_proxyModel->sorting();
 396 }
 397
 398 void DolphinView::setSortOrder(Qt::SortOrder order)
 399 {
 400     if (sortOrder() != order) {
 401         updateSortOrder(order);
 402     }
 403 }
 404
 405 Qt::SortOrder DolphinView::sortOrder() const
 406 {
 407     return m_proxyModel->sortOrder();
 408 }
 409
 410 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 411 {
 412     const KUrl viewPropsUrl = viewPropertiesUrl();
 413     ViewProperties props(viewPropsUrl);
 414     props.setAdditionalInfo(info);
 415     m_fileItemDelegate->setShowInformation(info);
 416
 417     emit additionalInfoChanged();
 418
 419     if (itemView() != m_detailsView) {
 420         // the details view requires no reloading of the directory, as it maps
 421         // the file item delegate info to its columns internally
 422         loadDirectory(viewPropsUrl);
 423     }
 424 }
 425
 426 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 427 {
 428     return m_fileItemDelegate->showInformation();
 429 }
 430
 431 void DolphinView::reload()
 432 {
 433     setUrl(url());
 434     loadDirectory(url(), true);
 435 }
 436
 437 void DolphinView::refresh()
 438 {
 439     const bool oldActivationState = m_active;
 440     m_active = true;
 441
 442     createView();
 443     applyViewProperties(m_controller->url());
 444     reload();
 445
 446     setActive(oldActivationState);
 447 }
 448
 449 void DolphinView::updateView(const KUrl& url, const KUrl& rootUrl)
 450 {
 451     if (m_controller->url() == url) {
 452         return;
 453     }
 454
 455     m_previewGenerator->cancelPreviews();
 456     m_controller->setUrl(url); // emits urlChanged, which we forward
 457
 458     if (!rootUrl.isEmpty() && rootUrl.isParentOf(url)) {
 459         applyViewProperties(rootUrl);
 460         loadDirectory(rootUrl);
 461         if (itemView() == m_columnView) {
 462             m_columnView->setRootUrl(rootUrl);
 463             m_columnView->showColumn(url);
 464         }
 465     } else {
 466         applyViewProperties(url);
 467         loadDirectory(url);
 468     }
 469
 470     emit startedPathLoading(url);
 471 }
 472
 473 void DolphinView::setNameFilter(const QString& nameFilter)
 474 {
 475     m_proxyModel->setFilterRegExp(nameFilter);
 476
 477     if (isColumnViewActive()) {
 478         // adjusting the directory lister is not enough in the case of the
 479         // column view, as each column has its own directory lister internally...
 480         m_columnView->setNameFilter(nameFilter);
 481     }
 482 }
 483
 484 void DolphinView::calculateItemCount(int& fileCount, int& folderCount)
 485 {
 486     foreach (const KFileItem &item, m_dirLister->items()) {
 487         if (item.isDir()) {
 488             ++folderCount;
 489         } else {
 490             ++fileCount;
 491         }
 492     }
 493 }
 494
 495 void DolphinView::setUrl(const KUrl& url)
 496 {
 497     // remember current item candidate (see restoreCurrentItem())
 498     m_currentItemUrl = url;
 499     updateView(url, KUrl());
 500 }
 501
 502 void DolphinView::changeSelection(const KFileItemList& selection)
 503 {
 504     clearSelection();
 505     if (selection.isEmpty()) {
 506         return;
 507     }
 508     const KUrl& baseUrl = url();
 509     KUrl url;
 510     QItemSelection new_selection;
 511     foreach(const KFileItem& item, selection) {
 512         url = item.url().upUrl();
 513         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 514             QModelIndex index = m_proxyModel->mapFromSource(m_dolphinModel->indexForItem(item));
 515             new_selection.select(index, index);
 516         }
 517     }
 518     itemView()->selectionModel()->select(new_selection,
 519                                          QItemSelectionModel::ClearAndSelect
 520                                          | QItemSelectionModel::Current);
 521 }
 522
 523 void DolphinView::renameSelectedItems()
 524 {
 525     const KFileItemList items = selectedItems();
 526     const int itemCount = items.count();
 527     if (itemCount < 1) {
 528         return;
 529     }
 530
 531     if (itemCount > 1) {
 532         // More than one item has been selected for renaming. Open
 533         // a rename dialog and rename all items afterwards.
 534         RenameDialog dialog(this, items);
 535         if (dialog.exec() == QDialog::Rejected) {
 536             return;
 537         }
 538
 539         const QString newName = dialog.newName();
 540         if (newName.isEmpty()) {
 541             emit errorMessage(dialog.errorString());
 542         } else {
 543             // TODO: check how this can be integrated into KIO::FileUndoManager/KonqOperations
 544             // as one operation instead of n rename operations like it is done now...
 545             Q_ASSERT(newName.contains('#'));
 546
 547             // iterate through all selected items and rename them...
 548             int index = 1;
 549             foreach (const KFileItem &item, items) {
 550                 const KUrl& oldUrl = item.url();
 551                 QString number;
 552                 number.setNum(index++);
 553
 554                 QString name = newName;
 555                 name.replace('#', number);
 556
 557                 if (oldUrl.fileName() != name) {
 558                     KUrl newUrl = oldUrl;
 559                     newUrl.setFileName(name);
 560                     KonqOperations::rename(this, oldUrl, newUrl);
 561                     emit doingOperation(KIO::FileUndoManager::Rename);
 562                 }
 563             }
 564         }
 565     } else if (DolphinSettings::instance().generalSettings()->renameInline()) {
 566         Q_ASSERT(itemCount == 1);
 567
 568         if (isColumnViewActive()) {
 569             m_columnView->editItem(items.first());
 570         } else {
 571             const QModelIndex dirIndex = m_dolphinModel->indexForItem(items.first());
 572             const QModelIndex proxyIndex = m_proxyModel->mapFromSource(dirIndex);
 573             itemView()->edit(proxyIndex);
 574         }
 575     } else {
 576         Q_ASSERT(itemCount == 1);
 577
 578         RenameDialog dialog(this, items);
 579         if (dialog.exec() == QDialog::Rejected) {
 580             return;
 581         }
 582
 583         const QString& newName = dialog.newName();
 584         if (newName.isEmpty()) {
 585             emit errorMessage(dialog.errorString());
 586         } else {
 587             const KUrl& oldUrl = items.first().url();
 588             KUrl newUrl = oldUrl;
 589             newUrl.setFileName(newName);
 590             KonqOperations::rename(this, oldUrl, newUrl);
 591             emit doingOperation(KIO::FileUndoManager::Rename);
 592         }
 593     }
 594 }
 595
 596 void DolphinView::trashSelectedItems()
 597 {
 598     emit doingOperation(KIO::FileUndoManager::Trash);
 599     const KUrl::List list = simplifiedSelectedUrls();
 600     KonqOperations::del(this, KonqOperations::TRASH, list);
 601 }
 602
 603 void DolphinView::deleteSelectedItems()
 604 {
 605     const KUrl::List list = simplifiedSelectedUrls();
 606     const bool del = KonqOperations::askDeleteConfirmation(list,
 607                      KonqOperations::DEL,
 608                      KonqOperations::DEFAULT_CONFIRMATION,
 609                      this);
 610
 611     if (del) {
 612         KIO::Job* job = KIO::del(list);
 613         connect(job, SIGNAL(result(KJob*)),
 614                 this, SLOT(slotDeleteFileFinished(KJob*)));
 615     }
 616 }
 617
 618 void DolphinView::cutSelectedItems()
 619 {
 620     QMimeData* mimeData = new QMimeData();
 621     const KUrl::List kdeUrls = simplifiedSelectedUrls();
 622     const KUrl::List mostLocalUrls;
 623     KonqMimeData::populateMimeData(mimeData, kdeUrls, mostLocalUrls, true);
 624     QApplication::clipboard()->setMimeData(mimeData);
 625 }
 626
 627 void DolphinView::copySelectedItems()
 628 {
 629     QMimeData* mimeData = new QMimeData();
 630     const KUrl::List kdeUrls = selectedUrls();
 631     const KUrl::List mostLocalUrls;
 632     KonqMimeData::populateMimeData(mimeData, kdeUrls, mostLocalUrls, false);
 633     QApplication::clipboard()->setMimeData(mimeData);
 634 }
 635
 636 void DolphinView::paste()
 637 {
 638     pasteToUrl(url());
 639 }
 640
 641 void DolphinView::pasteIntoFolder()
 642 {
 643     const KFileItemList items = selectedItems();
 644     if ((items.count() == 1) && items.first().isDir()) {
 645         pasteToUrl(items.first().url());
 646     }
 647 }
 648
 649 void DolphinView::setShowPreview(bool show)
 650 {
 651     if (m_showPreview == show) {
 652         return;
 653     }
 654
 655     const KUrl viewPropsUrl = viewPropertiesUrl();
 656     ViewProperties props(viewPropsUrl);
 657     props.setShowPreview(show);
 658
 659     m_showPreview = show;
 660     m_previewGenerator->setPreviewShown(show);
 661
 662     const int oldZoomLevel = m_controller->zoomLevel();
 663     emit showPreviewChanged();
 664
 665     // Enabling or disabling the preview might change the icon size of the view.
 666     // As the view does not emit a signal when the icon size has been changed,
 667     // the used zoom level of the controller must be adjusted manually:
 668     updateZoomLevel(oldZoomLevel);
 669
 670     loadDirectory(viewPropsUrl);
 671 }
 672
 673 void DolphinView::setShowHiddenFiles(bool show)
 674 {
 675     if (m_dirLister->showingDotFiles() == show) {
 676         return;
 677     }
 678
 679     const KUrl viewPropsUrl = viewPropertiesUrl();
 680     ViewProperties props(viewPropsUrl);
 681     props.setShowHiddenFiles(show);
 682
 683     m_dirLister->setShowingDotFiles(show);
 684     emit showHiddenFilesChanged();
 685
 686     loadDirectory(viewPropsUrl);
 687 }
 688
 689 void DolphinView::setCategorizedSorting(bool categorized)
 690 {
 691     if (categorized == categorizedSorting()) {
 692         return;
 693     }
 694
 695     // setCategorizedSorting(true) may only get invoked
 696     // if the view supports categorized sorting
 697     Q_ASSERT(!categorized || supportsCategorizedSorting());
 698
 699     ViewProperties props(viewPropertiesUrl());
 700     props.setCategorizedSorting(categorized);
 701     props.save();
 702
 703     m_storedCategorizedSorting = categorized;
 704     m_proxyModel->setCategorizedModel(categorized);
 705
 706     emit categorizedSortingChanged();
 707 }
 708
 709 void DolphinView::toggleSortOrder()
 710 {
 711     const Qt::SortOrder order = (sortOrder() == Qt::AscendingOrder) ?
 712                                 Qt::DescendingOrder :
 713                                 Qt::AscendingOrder;
 714     setSortOrder(order);
 715 }
 716
 717 void DolphinView::toggleAdditionalInfo(QAction* action)
 718 {
 719     const KFileItemDelegate::Information info =
 720         static_cast<KFileItemDelegate::Information>(action->data().toInt());
 721
 722     KFileItemDelegate::InformationList list = additionalInfo();
 723
 724     const bool show = action->isChecked();
 725
 726     const int index = list.indexOf(info);
 727     const bool containsInfo = (index >= 0);
 728     if (show && !containsInfo) {
 729         list.append(info);
 730         setAdditionalInfo(list);
 731     } else if (!show && containsInfo) {
 732         list.removeAt(index);
 733         setAdditionalInfo(list);
 734         Q_ASSERT(list.indexOf(info) < 0);
 735     }
 736 }
 737
 738 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 739 {
 740     QWidget::mouseReleaseEvent(event);
 741     setActive(true);
 742 }
 743
 744 void DolphinView::wheelEvent(QWheelEvent* event)
 745 {
 746     if (event->modifiers() & Qt::ControlModifier) {
 747         const int delta = event->delta();
 748         const int level = zoomLevel();
 749         if (delta > 0) {
 750             setZoomLevel(level + 1);
 751         } else if (delta < 0) {
 752             setZoomLevel(level - 1);
 753         }
 754         event->accept();
 755     }
 756 }
 757
 758 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 759 {
 760     if ((watched == itemView()) && (event->type() == QEvent::FocusIn)) {
 761         m_controller->requestActivation();
 762     }
 763
 764     return QWidget::eventFilter(watched, event);
 765 }
 766
 767 void DolphinView::activate()
 768 {
 769     setActive(true);
 770 }
 771
 772 void DolphinView::triggerItem(const KFileItem& item)
 773 {
 774     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 775     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 776         // items are selected by the user, hence don't trigger the
 777         // item specified by 'index'
 778         return;
 779     }
 780
 781     // TODO: the m_isContextMenuOpen check is a workaround for Qt-issue 207192
 782     if (item.isNull() || m_isContextMenuOpen) {
 783         return;
 784     }
 785
 786     if (m_toolTipManager != 0) {
 787         m_toolTipManager->hideTip();
 788     }
 789     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 790 }
 791
 792 void DolphinView::emitSelectionChangedSignal()
 793 {
 794     emit selectionChanged(DolphinView::selectedItems());
 795 }
 796
 797 void DolphinView::openContextMenu(const QPoint& pos)
 798 {
 799     KFileItem item;
 800     if (isColumnViewActive()) {
 801         item = m_columnView->itemAt(pos);
 802     } else {
 803         const QModelIndex index = itemView()->indexAt(pos);
 804         if (index.isValid() && (index.column() == DolphinModel::Name)) {
 805             const QModelIndex dolphinModelIndex = m_proxyModel->mapToSource(index);
 806             item = m_dolphinModel->itemForIndex(dolphinModelIndex);
 807         }
 808     }
 809
 810     if (m_toolTipManager != 0) {
 811         m_toolTipManager->hideTip();
 812     }
 813
 814     m_isContextMenuOpen = true; // TODO: workaround for Qt-issue 207192
 815     emit requestContextMenu(item, url());
 816     m_isContextMenuOpen = false;
 817 }
 818
 819 void DolphinView::dropUrls(const KFileItem& destItem,
 820                            const KUrl& destPath,
 821                            QDropEvent* event)
 822 {
 823     DolphinDropController dropController(this);
 824     // forward doingOperation signal up to the mainwindow
 825     connect(&dropController, SIGNAL(doingOperation(KIO::FileUndoManager::CommandType)),
 826             this, SIGNAL(doingOperation(KIO::FileUndoManager::CommandType)));
 827     dropController.dropUrls(destItem, destPath, event);
 828 }
 829
 830 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 831 {
 832     ViewProperties props(viewPropertiesUrl());
 833     props.setSorting(sorting);
 834
 835     m_proxyModel->setSorting(sorting);
 836
 837     emit sortingChanged(sorting);
 838 }
 839
 840 void DolphinView::updateSortOrder(Qt::SortOrder order)
 841 {
 842     ViewProperties props(viewPropertiesUrl());
 843     props.setSortOrder(order);
 844
 845     m_proxyModel->setSortOrder(order);
 846
 847     emit sortOrderChanged(order);
 848 }
 849
 850 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 851 {
 852     ViewProperties props(viewPropertiesUrl());
 853     props.setAdditionalInfo(info);
 854     props.save();
 855
 856     m_fileItemDelegate->setShowInformation(info);
 857
 858     emit additionalInfoChanged();
 859 }
 860
 861 void DolphinView::updateAdditionalInfoActions(KActionCollection* collection)
 862 {
 863     const bool enable = (m_mode == DolphinView::DetailsView) ||
 864                         (m_mode == DolphinView::IconsView);
 865
 866     QAction* showSizeInfo = collection->action("show_size_info");
 867     QAction* showDateInfo = collection->action("show_date_info");
 868     QAction* showPermissionsInfo = collection->action("show_permissions_info");
 869     QAction* showOwnerInfo = collection->action("show_owner_info");
 870     QAction* showGroupInfo = collection->action("show_group_info");
 871     QAction* showMimeInfo = collection->action("show_mime_info");
 872
 873     showSizeInfo->setChecked(false);
 874     showDateInfo->setChecked(false);
 875     showPermissionsInfo->setChecked(false);
 876     showOwnerInfo->setChecked(false);
 877     showGroupInfo->setChecked(false);
 878     showMimeInfo->setChecked(false);
 879
 880     showSizeInfo->setEnabled(enable);
 881     showDateInfo->setEnabled(enable);
 882     showPermissionsInfo->setEnabled(enable);
 883     showOwnerInfo->setEnabled(enable);
 884     showGroupInfo->setEnabled(enable);
 885     showMimeInfo->setEnabled(enable);
 886
 887     foreach (KFileItemDelegate::Information info, m_fileItemDelegate->showInformation()) {
 888         switch (info) {
 889         case KFileItemDelegate::Size:
 890             showSizeInfo->setChecked(true);
 891             break;
 892         case KFileItemDelegate::ModificationTime:
 893             showDateInfo->setChecked(true);
 894             break;
 895         case KFileItemDelegate::Permissions:
 896             showPermissionsInfo->setChecked(true);
 897             break;
 898         case KFileItemDelegate::Owner:
 899             showOwnerInfo->setChecked(true);
 900             break;
 901         case KFileItemDelegate::OwnerAndGroup:
 902             showGroupInfo->setChecked(true);
 903             break;
 904         case KFileItemDelegate::FriendlyMimeType:
 905             showMimeInfo->setChecked(true);
 906             break;
 907         default:
 908             break;
 909         }
 910     }
 911 }
 912
 913 QPair<bool, QString> DolphinView::pasteInfo() const
 914 {
 915     QPair<bool, QString> ret;
 916     QClipboard* clipboard = QApplication::clipboard();
 917     const QMimeData* mimeData = clipboard->mimeData();
 918
 919     KUrl::List urls = KUrl::List::fromMimeData(mimeData);
 920     if (!urls.isEmpty()) {
 921         // disable the paste action if no writing is supported
 922         KFileItem item(KFileItem::Unknown, KFileItem::Unknown, url());
 923         ret.first = KonqFileItemCapabilities(KFileItemList() << item).supportsWriting();
 924
 925         if (urls.count() == 1) {
 926             const KFileItem item(KFileItem::Unknown, KFileItem::Unknown, urls.first(), true);
 927             ret.second = item.isDir() ? i18nc("@action:inmenu", "Paste One Folder") :
 928                                         i18nc("@action:inmenu", "Paste One File");
 929
 930         } else {
 931             ret.second = i18ncp("@action:inmenu", "Paste One Item", "Paste %1 Items", urls.count());
 932         }
 933     } else {
 934         ret.first = false;
 935         ret.second = i18nc("@action:inmenu", "Paste");
 936     }
 937
 938     return ret;
 939 }
 940
 941 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
 942 {
 943     m_tabsForFiles = tabsForFiles;
 944 }
 945
 946 bool DolphinView::isTabsForFilesEnabled() const
 947 {
 948     return m_tabsForFiles;
 949 }
 950
 951 void DolphinView::emitContentsMoved()
 952 {
 953     // only emit the contents moved signal if:
 954     // - no directory loading is ongoing (this would reset the contents position
 955     //   always to (0, 0))
 956     // - if the Column View is active: the column view does an automatic
 957     //   positioning during the loading operation, which must be remembered
 958     if (!m_loadingDirectory || isColumnViewActive()) {
 959         const QPoint pos(contentsPosition());
 960         emit contentsMoved(pos.x(), pos.y());
 961     }
 962 }
 963
 964 void DolphinView::showHoverInformation(const KFileItem& item)
 965 {
 966     emit requestItemInfo(item);
 967 }
 968
 969 void DolphinView::clearHoverInformation()
 970 {
 971     emit requestItemInfo(KFileItem());
 972 }
 973
 974 void DolphinView::slotDeleteFileFinished(KJob* job)
 975 {
 976     if (job->error() == 0) {
 977         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
 978     } else {
 979         emit errorMessage(job->errorString());
 980     }
 981 }
 982
 983 void DolphinView::slotRedirection(const KUrl& oldUrl, const KUrl& newUrl)
 984 {
 985     if (oldUrl == m_controller->url()) {
 986         m_controller->setUrl(newUrl);
 987     }
 988 }
 989
 990 void DolphinView::slotRequestUrlChange(const KUrl& url)
 991 {
 992     emit requestUrlChange(url);
 993     m_controller->setUrl(url);
 994 }
 995
 996 void DolphinView::restoreCurrentItem()
 997 {
 998     const QModelIndex dirIndex = m_dolphinModel->indexForUrl(m_currentItemUrl);
 999     if (dirIndex.isValid()) {
1000         const QModelIndex proxyIndex = m_proxyModel->mapFromSource(dirIndex);
1001         QAbstractItemView* view = itemView();
1002         const bool clearSelection = !hasSelection();
1003         view->setCurrentIndex(proxyIndex);
1004         if (clearSelection) {
1005             view->clearSelection();
1006         }
1007     }
1008 }
1009
1010 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1011 {
1012     if (!url.isValid()) {
1013         const QString location(url.pathOrUrl());
1014         if (location.isEmpty()) {
1015             emit errorMessage(i18nc("@info:status", "The location is empty."));
1016         } else {
1017             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1018         }
1019         return;
1020     }
1021
1022     m_loadingDirectory = true;
1023
1024     m_dirLister->stop();
1025     m_dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
1026
1027     if (isColumnViewActive()) {
1028         // adjusting the directory lister is not enough in the case of the
1029         // column view, as each column has its own directory lister internally...
1030         if (reload) {
1031             m_columnView->reload();
1032         } else {
1033             m_columnView->showColumn(url);
1034         }
1035     }
1036 }
1037
1038 KUrl DolphinView::viewPropertiesUrl() const
1039 {
1040     if (isColumnViewActive()) {
1041         return m_columnView->rootUrl();
1042     }
1043
1044     return url();
1045 }
1046
1047 void DolphinView::applyViewProperties(const KUrl& url)
1048 {
1049     if (isColumnViewActive() && rootUrl().isParentOf(url)) {
1050         // The column view is active, hence don't apply the view properties
1051         // of sub directories (represented by columns) to the view. The
1052         // view always represents the properties of the first column.
1053         return;
1054     }
1055
1056     const ViewProperties props(url);
1057
1058     const Mode mode = props.viewMode();
1059     if (m_mode != mode) {
1060         m_mode = mode;
1061         createView();
1062         emit modeChanged();
1063     }
1064     if (itemView() == 0) {
1065         createView();
1066     }
1067     Q_ASSERT(itemView() != 0);
1068     Q_ASSERT(m_fileItemDelegate != 0);
1069
1070     const bool showHiddenFiles = props.showHiddenFiles();
1071     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
1072         m_dirLister->setShowingDotFiles(showHiddenFiles);
1073         emit showHiddenFilesChanged();
1074     }
1075
1076     m_storedCategorizedSorting = props.categorizedSorting();
1077     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1078     if (categorized != m_proxyModel->isCategorizedModel()) {
1079         m_proxyModel->setCategorizedModel(categorized);
1080         emit categorizedSortingChanged();
1081     }
1082
1083     const DolphinView::Sorting sorting = props.sorting();
1084     if (sorting != m_proxyModel->sorting()) {
1085         m_proxyModel->setSorting(sorting);
1086         emit sortingChanged(sorting);
1087     }
1088
1089     const Qt::SortOrder sortOrder = props.sortOrder();
1090     if (sortOrder != m_proxyModel->sortOrder()) {
1091         m_proxyModel->setSortOrder(sortOrder);
1092         emit sortOrderChanged(sortOrder);
1093     }
1094
1095     KFileItemDelegate::InformationList info = props.additionalInfo();
1096     if (info != m_fileItemDelegate->showInformation()) {
1097         m_fileItemDelegate->setShowInformation(info);
1098         emit additionalInfoChanged();
1099     }
1100
1101     const bool showPreview = props.showPreview();
1102     if (showPreview != m_showPreview) {
1103         m_showPreview = showPreview;
1104         m_previewGenerator->setPreviewShown(showPreview);
1105
1106         const int oldZoomLevel = m_controller->zoomLevel();
1107         emit showPreviewChanged();
1108
1109         // Enabling or disabling the preview might change the icon size of the view.
1110         // As the view does not emit a signal when the icon size has been changed,
1111         // the used zoom level of the controller must be adjusted manually:
1112         updateZoomLevel(oldZoomLevel);
1113     }
1114 }
1115
1116 void DolphinView::createView()
1117 {
1118     deleteView();
1119     Q_ASSERT(m_iconsView == 0);
1120     Q_ASSERT(m_detailsView == 0);
1121     Q_ASSERT(m_columnView == 0);
1122
1123     QAbstractItemView* view = 0;
1124     switch (m_mode) {
1125     case IconsView: {
1126         m_iconsView = new DolphinIconsView(this, m_controller);
1127         view = m_iconsView;
1128         break;
1129     }
1130
1131     case DetailsView:
1132         m_detailsView = new DolphinDetailsView(this, m_controller);
1133         view = m_detailsView;
1134         break;
1135
1136     case ColumnView:
1137         m_columnView = new DolphinColumnView(this, m_controller);
1138         view = m_columnView;
1139         break;
1140     }
1141
1142     Q_ASSERT(view != 0);
1143     view->installEventFilter(this);
1144
1145     if (m_mode != ColumnView) {
1146         // Give the view the ability to auto-expand its directories on hovering
1147         // (the column view takes care about this itself). If the details view
1148         // uses expandable folders, the auto-expanding should be used always.
1149         DolphinSettings& settings = DolphinSettings::instance();
1150         const bool enabled = settings.generalSettings()->autoExpandFolders() ||
1151                             ((m_detailsView != 0) && settings.detailsModeSettings()->expandableFolders());
1152
1153         FolderExpander* folderExpander = new FolderExpander(view, m_proxyModel);
1154         folderExpander->setEnabled(enabled);
1155         connect(folderExpander, SIGNAL(enterDir(const QModelIndex&)),
1156                 m_controller, SLOT(triggerItem(const QModelIndex&)));
1157     }
1158
1159     m_controller->setItemView(view);
1160
1161     m_fileItemDelegate = new KFileItemDelegate(view);
1162     m_fileItemDelegate->setShowToolTipWhenElided(false);
1163     view->setItemDelegate(m_fileItemDelegate);
1164
1165     view->setModel(m_proxyModel);
1166     if (m_selectionModel != 0) {
1167         view->setSelectionModel(m_selectionModel);
1168     } else {
1169         m_selectionModel = view->selectionModel();
1170     }
1171
1172     // reparent the selection model, as it should not be deleted
1173     // when deleting the model
1174     m_selectionModel->setParent(this);
1175
1176     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
1177
1178     m_previewGenerator = new KFilePreviewGenerator(view, m_proxyModel);
1179     m_previewGenerator->setPreviewShown(m_showPreview);
1180
1181     if (DolphinSettings::instance().generalSettings()->showToolTips()) {
1182         m_toolTipManager = new ToolTipManager(view, m_proxyModel);
1183     }
1184
1185     m_topLayout->insertWidget(1, view);
1186
1187     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
1188             this, SLOT(emitSelectionChangedSignal()));
1189     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
1190             this, SLOT(emitContentsMoved()));
1191     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
1192             this, SLOT(emitContentsMoved()));
1193 }
1194
1195 void DolphinView::deleteView()
1196 {
1197     QAbstractItemView* view = itemView();
1198     if (view != 0) {
1199         // It's important to set the keyboard focus to the parent
1200         // before deleting the view: Otherwise when having a split
1201         // view the other view will get the focus and will request
1202         // an activation (see DolphinView::eventFilter()).
1203         setFocus();
1204
1205         m_topLayout->removeWidget(view);
1206         view->close();
1207         view->deleteLater();
1208         view = 0;
1209         m_iconsView = 0;
1210         m_detailsView = 0;
1211         m_columnView = 0;
1212         m_fileItemDelegate = 0;
1213         m_previewGenerator = 0;
1214         m_toolTipManager = 0;
1215     }
1216 }
1217
1218 QAbstractItemView* DolphinView::itemView() const
1219 {
1220     if (m_detailsView != 0) {
1221         return m_detailsView;
1222     } else if (m_columnView != 0) {
1223         return m_columnView;
1224     }
1225
1226     return m_iconsView;
1227 }
1228
1229 bool DolphinView::isCutItem(const KFileItem& item) const
1230 {
1231     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
1232     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
1233
1234     const KUrl& itemUrl = item.url();
1235     KUrl::List::const_iterator it = cutUrls.begin();
1236     const KUrl::List::const_iterator end = cutUrls.end();
1237     while (it != end) {
1238         if (*it == itemUrl) {
1239             return true;
1240         }
1241         ++it;
1242     }
1243
1244     return false;
1245 }
1246
1247 void DolphinView::pasteToUrl(const KUrl& url)
1248 {
1249     QClipboard* clipboard = QApplication::clipboard();
1250     const QMimeData* mimeData = clipboard->mimeData();
1251
1252     const KUrl::List sourceUrls = KUrl::List::fromMimeData(mimeData);
1253     if (KonqMimeData::decodeIsCutSelection(mimeData)) {
1254         KonqOperations::copy(this, KonqOperations::MOVE, sourceUrls, url);
1255         emit doingOperation(KIO::FileUndoManager::Move);
1256         clipboard->clear();
1257     } else {
1258         KonqOperations::copy(this, KonqOperations::COPY, sourceUrls, url);
1259         emit doingOperation(KIO::FileUndoManager::Copy);
1260     }
1261 }
1262
1263 void DolphinView::updateZoomLevel(int oldZoomLevel)
1264 {
1265     const int newZoomLevel = ZoomLevelInfo::zoomLevelForIconSize(itemView()->iconSize());
1266     if (oldZoomLevel != newZoomLevel) {
1267         m_controller->setZoomLevel(newZoomLevel);
1268         emit zoomLevelChanged(newZoomLevel);
1269     }
1270 }
1271
1272 KUrl::List DolphinView::simplifiedSelectedUrls() const
1273 {
1274     KUrl::List list = selectedUrls();
1275     if ((m_detailsView != 0) && m_detailsView->itemsExpandable()) {
1276         list = KonqOperations::simplifiedUrlList(list);
1277     }
1278     return list;
1279 }
1280
1281 #include "dolphinview.moc"