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                 }
 562             }
 563         }
 564     } else if (DolphinSettings::instance().generalSettings()->renameInline()) {
 565         Q_ASSERT(itemCount == 1);
 566
 567         if (isColumnViewActive()) {
 568             m_columnView->editItem(items.first());
 569         } else {
 570             const QModelIndex dirIndex = m_dolphinModel->indexForItem(items.first());
 571             const QModelIndex proxyIndex = m_proxyModel->mapFromSource(dirIndex);
 572             itemView()->edit(proxyIndex);
 573         }
 574     } else {
 575         Q_ASSERT(itemCount == 1);
 576
 577         RenameDialog dialog(this, items);
 578         if (dialog.exec() == QDialog::Rejected) {
 579             return;
 580         }
 581
 582         const QString& newName = dialog.newName();
 583         if (newName.isEmpty()) {
 584             emit errorMessage(dialog.errorString());
 585         } else {
 586             const KUrl& oldUrl = items.first().url();
 587             KUrl newUrl = oldUrl;
 588             newUrl.setFileName(newName);
 589             KonqOperations::rename(this, oldUrl, newUrl);
 590         }
 591     }
 592 }
 593
 594 void DolphinView::trashSelectedItems()
 595 {
 596     const KUrl::List list = simplifiedSelectedUrls();
 597     KonqOperations::del(this, KonqOperations::TRASH, list);
 598 }
 599
 600 void DolphinView::deleteSelectedItems()
 601 {
 602     const KUrl::List list = simplifiedSelectedUrls();
 603     const bool del = KonqOperations::askDeleteConfirmation(list,
 604                      KonqOperations::DEL,
 605                      KonqOperations::DEFAULT_CONFIRMATION,
 606                      this);
 607
 608     if (del) {
 609         KIO::Job* job = KIO::del(list);
 610         connect(job, SIGNAL(result(KJob*)),
 611                 this, SLOT(slotDeleteFileFinished(KJob*)));
 612     }
 613 }
 614
 615 void DolphinView::cutSelectedItems()
 616 {
 617     QMimeData* mimeData = new QMimeData();
 618     const KUrl::List kdeUrls = simplifiedSelectedUrls();
 619     const KUrl::List mostLocalUrls;
 620     KonqMimeData::populateMimeData(mimeData, kdeUrls, mostLocalUrls, true);
 621     QApplication::clipboard()->setMimeData(mimeData);
 622 }
 623
 624 void DolphinView::copySelectedItems()
 625 {
 626     QMimeData* mimeData = new QMimeData();
 627     const KUrl::List kdeUrls = selectedUrls();
 628     const KUrl::List mostLocalUrls;
 629     KonqMimeData::populateMimeData(mimeData, kdeUrls, mostLocalUrls, false);
 630     QApplication::clipboard()->setMimeData(mimeData);
 631 }
 632
 633 void DolphinView::paste()
 634 {
 635     pasteToUrl(url());
 636 }
 637
 638 void DolphinView::pasteIntoFolder()
 639 {
 640     const KFileItemList items = selectedItems();
 641     if ((items.count() == 1) && items.first().isDir()) {
 642         pasteToUrl(items.first().url());
 643     }
 644 }
 645
 646 void DolphinView::setShowPreview(bool show)
 647 {
 648     if (m_showPreview == show) {
 649         return;
 650     }
 651
 652     const KUrl viewPropsUrl = viewPropertiesUrl();
 653     ViewProperties props(viewPropsUrl);
 654     props.setShowPreview(show);
 655
 656     m_showPreview = show;
 657     m_previewGenerator->setPreviewShown(show);
 658
 659     const int oldZoomLevel = m_controller->zoomLevel();
 660     emit showPreviewChanged();
 661
 662     // Enabling or disabling the preview might change the icon size of the view.
 663     // As the view does not emit a signal when the icon size has been changed,
 664     // the used zoom level of the controller must be adjusted manually:
 665     updateZoomLevel(oldZoomLevel);
 666
 667     loadDirectory(viewPropsUrl);
 668 }
 669
 670 void DolphinView::setShowHiddenFiles(bool show)
 671 {
 672     if (m_dirLister->showingDotFiles() == show) {
 673         return;
 674     }
 675
 676     const KUrl viewPropsUrl = viewPropertiesUrl();
 677     ViewProperties props(viewPropsUrl);
 678     props.setShowHiddenFiles(show);
 679
 680     m_dirLister->setShowingDotFiles(show);
 681     emit showHiddenFilesChanged();
 682
 683     loadDirectory(viewPropsUrl);
 684 }
 685
 686 void DolphinView::setCategorizedSorting(bool categorized)
 687 {
 688     if (categorized == categorizedSorting()) {
 689         return;
 690     }
 691
 692     // setCategorizedSorting(true) may only get invoked
 693     // if the view supports categorized sorting
 694     Q_ASSERT(!categorized || supportsCategorizedSorting());
 695
 696     ViewProperties props(viewPropertiesUrl());
 697     props.setCategorizedSorting(categorized);
 698     props.save();
 699
 700     m_storedCategorizedSorting = categorized;
 701     m_proxyModel->setCategorizedModel(categorized);
 702
 703     emit categorizedSortingChanged();
 704 }
 705
 706 void DolphinView::toggleSortOrder()
 707 {
 708     const Qt::SortOrder order = (sortOrder() == Qt::AscendingOrder) ?
 709                                 Qt::DescendingOrder :
 710                                 Qt::AscendingOrder;
 711     setSortOrder(order);
 712 }
 713
 714 void DolphinView::toggleAdditionalInfo(QAction* action)
 715 {
 716     const KFileItemDelegate::Information info =
 717         static_cast<KFileItemDelegate::Information>(action->data().toInt());
 718
 719     KFileItemDelegate::InformationList list = additionalInfo();
 720
 721     const bool show = action->isChecked();
 722
 723     const int index = list.indexOf(info);
 724     const bool containsInfo = (index >= 0);
 725     if (show && !containsInfo) {
 726         list.append(info);
 727         setAdditionalInfo(list);
 728     } else if (!show && containsInfo) {
 729         list.removeAt(index);
 730         setAdditionalInfo(list);
 731         Q_ASSERT(list.indexOf(info) < 0);
 732     }
 733 }
 734
 735 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 736 {
 737     QWidget::mouseReleaseEvent(event);
 738     setActive(true);
 739 }
 740
 741 void DolphinView::wheelEvent(QWheelEvent* event)
 742 {
 743     if (event->modifiers() & Qt::ControlModifier) {
 744         const int delta = event->delta();
 745         const int level = zoomLevel();
 746         if (delta > 0) {
 747             setZoomLevel(level + 1);
 748         } else if (delta < 0) {
 749             setZoomLevel(level - 1);
 750         }
 751         event->accept();
 752     }
 753 }
 754
 755 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 756 {
 757     if ((watched == itemView()) && (event->type() == QEvent::FocusIn)) {
 758         m_controller->requestActivation();
 759     }
 760
 761     return QWidget::eventFilter(watched, event);
 762 }
 763
 764 void DolphinView::activate()
 765 {
 766     setActive(true);
 767 }
 768
 769 void DolphinView::triggerItem(const KFileItem& item)
 770 {
 771     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 772     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 773         // items are selected by the user, hence don't trigger the
 774         // item specified by 'index'
 775         return;
 776     }
 777
 778     // TODO: the m_isContextMenuOpen check is a workaround for Qt-issue 207192
 779     if (item.isNull() || m_isContextMenuOpen) {
 780         return;
 781     }
 782
 783     if (m_toolTipManager != 0) {
 784         m_toolTipManager->hideTip();
 785     }
 786     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 787 }
 788
 789 void DolphinView::emitSelectionChangedSignal()
 790 {
 791     emit selectionChanged(DolphinView::selectedItems());
 792 }
 793
 794 void DolphinView::openContextMenu(const QPoint& pos)
 795 {
 796     KFileItem item;
 797     if (isColumnViewActive()) {
 798         item = m_columnView->itemAt(pos);
 799     } else {
 800         const QModelIndex index = itemView()->indexAt(pos);
 801         if (index.isValid() && (index.column() == DolphinModel::Name)) {
 802             const QModelIndex dolphinModelIndex = m_proxyModel->mapToSource(index);
 803             item = m_dolphinModel->itemForIndex(dolphinModelIndex);
 804         }
 805     }
 806
 807     if (m_toolTipManager != 0) {
 808         m_toolTipManager->hideTip();
 809     }
 810
 811     m_isContextMenuOpen = true; // TODO: workaround for Qt-issue 207192
 812     emit requestContextMenu(item, url());
 813     m_isContextMenuOpen = false;
 814 }
 815
 816 void DolphinView::dropUrls(const KFileItem& destItem,
 817                            const KUrl& destPath,
 818                            QDropEvent* event)
 819 {
 820     DolphinDropController::dropUrls(destItem, destPath, event, this);
 821 }
 822
 823 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 824 {
 825     ViewProperties props(viewPropertiesUrl());
 826     props.setSorting(sorting);
 827
 828     m_proxyModel->setSorting(sorting);
 829
 830     emit sortingChanged(sorting);
 831 }
 832
 833 void DolphinView::updateSortOrder(Qt::SortOrder order)
 834 {
 835     ViewProperties props(viewPropertiesUrl());
 836     props.setSortOrder(order);
 837
 838     m_proxyModel->setSortOrder(order);
 839
 840     emit sortOrderChanged(order);
 841 }
 842
 843 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 844 {
 845     ViewProperties props(viewPropertiesUrl());
 846     props.setAdditionalInfo(info);
 847     props.save();
 848
 849     m_fileItemDelegate->setShowInformation(info);
 850
 851     emit additionalInfoChanged();
 852 }
 853
 854 void DolphinView::updateAdditionalInfoActions(KActionCollection* collection)
 855 {
 856     const bool enable = (m_mode == DolphinView::DetailsView) ||
 857                         (m_mode == DolphinView::IconsView);
 858
 859     QAction* showSizeInfo = collection->action("show_size_info");
 860     QAction* showDateInfo = collection->action("show_date_info");
 861     QAction* showPermissionsInfo = collection->action("show_permissions_info");
 862     QAction* showOwnerInfo = collection->action("show_owner_info");
 863     QAction* showGroupInfo = collection->action("show_group_info");
 864     QAction* showMimeInfo = collection->action("show_mime_info");
 865
 866     showSizeInfo->setChecked(false);
 867     showDateInfo->setChecked(false);
 868     showPermissionsInfo->setChecked(false);
 869     showOwnerInfo->setChecked(false);
 870     showGroupInfo->setChecked(false);
 871     showMimeInfo->setChecked(false);
 872
 873     showSizeInfo->setEnabled(enable);
 874     showDateInfo->setEnabled(enable);
 875     showPermissionsInfo->setEnabled(enable);
 876     showOwnerInfo->setEnabled(enable);
 877     showGroupInfo->setEnabled(enable);
 878     showMimeInfo->setEnabled(enable);
 879
 880     foreach (KFileItemDelegate::Information info, m_fileItemDelegate->showInformation()) {
 881         switch (info) {
 882         case KFileItemDelegate::Size:
 883             showSizeInfo->setChecked(true);
 884             break;
 885         case KFileItemDelegate::ModificationTime:
 886             showDateInfo->setChecked(true);
 887             break;
 888         case KFileItemDelegate::Permissions:
 889             showPermissionsInfo->setChecked(true);
 890             break;
 891         case KFileItemDelegate::Owner:
 892             showOwnerInfo->setChecked(true);
 893             break;
 894         case KFileItemDelegate::OwnerAndGroup:
 895             showGroupInfo->setChecked(true);
 896             break;
 897         case KFileItemDelegate::FriendlyMimeType:
 898             showMimeInfo->setChecked(true);
 899             break;
 900         default:
 901             break;
 902         }
 903     }
 904 }
 905
 906 QPair<bool, QString> DolphinView::pasteInfo() const
 907 {
 908     QPair<bool, QString> ret;
 909     QClipboard* clipboard = QApplication::clipboard();
 910     const QMimeData* mimeData = clipboard->mimeData();
 911
 912     KUrl::List urls = KUrl::List::fromMimeData(mimeData);
 913     if (!urls.isEmpty()) {
 914         // disable the paste action if no writing is supported
 915         KFileItem item(KFileItem::Unknown, KFileItem::Unknown, url());
 916         ret.first = KonqFileItemCapabilities(KFileItemList() << item).supportsWriting();
 917
 918         if (urls.count() == 1) {
 919             const KFileItem item(KFileItem::Unknown, KFileItem::Unknown, urls.first(), true);
 920             ret.second = item.isDir() ? i18nc("@action:inmenu", "Paste One Folder") :
 921                                         i18nc("@action:inmenu", "Paste One File");
 922
 923         } else {
 924             ret.second = i18ncp("@action:inmenu", "Paste One Item", "Paste %1 Items", urls.count());
 925         }
 926     } else {
 927         ret.first = false;
 928         ret.second = i18nc("@action:inmenu", "Paste");
 929     }
 930
 931     return ret;
 932 }
 933
 934 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
 935 {
 936     m_tabsForFiles = tabsForFiles;
 937 }
 938
 939 bool DolphinView::isTabsForFilesEnabled() const
 940 {
 941     return m_tabsForFiles;
 942 }
 943
 944 void DolphinView::emitContentsMoved()
 945 {
 946     // only emit the contents moved signal if:
 947     // - no directory loading is ongoing (this would reset the contents position
 948     //   always to (0, 0))
 949     // - if the Column View is active: the column view does an automatic
 950     //   positioning during the loading operation, which must be remembered
 951     if (!m_loadingDirectory || isColumnViewActive()) {
 952         const QPoint pos(contentsPosition());
 953         emit contentsMoved(pos.x(), pos.y());
 954     }
 955 }
 956
 957 void DolphinView::showHoverInformation(const KFileItem& item)
 958 {
 959     emit requestItemInfo(item);
 960 }
 961
 962 void DolphinView::clearHoverInformation()
 963 {
 964     emit requestItemInfo(KFileItem());
 965 }
 966
 967 void DolphinView::slotDeleteFileFinished(KJob* job)
 968 {
 969     if (job->error() == 0) {
 970         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
 971     } else {
 972         emit errorMessage(job->errorString());
 973     }
 974 }
 975
 976 void DolphinView::slotRedirection(const KUrl& oldUrl, const KUrl& newUrl)
 977 {
 978     if (oldUrl == m_controller->url()) {
 979         m_controller->setUrl(newUrl);
 980     }
 981 }
 982
 983 void DolphinView::slotRequestUrlChange(const KUrl& url)
 984 {
 985     emit requestUrlChange(url);
 986     m_controller->setUrl(url);
 987 }
 988
 989 void DolphinView::restoreCurrentItem()
 990 {
 991     const QModelIndex dirIndex = m_dolphinModel->indexForUrl(m_currentItemUrl);
 992     if (dirIndex.isValid()) {
 993         const QModelIndex proxyIndex = m_proxyModel->mapFromSource(dirIndex);
 994         QAbstractItemView* view = itemView();
 995         const bool clearSelection = !hasSelection();
 996         view->setCurrentIndex(proxyIndex);
 997         if (clearSelection) {
 998             view->clearSelection();
 999         }
1000     }
1001 }
1002
1003 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1004 {
1005     if (!url.isValid()) {
1006         const QString location(url.pathOrUrl());
1007         if (location.isEmpty()) {
1008             emit errorMessage(i18nc("@info:status", "The location is empty."));
1009         } else {
1010             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1011         }
1012         return;
1013     }
1014
1015     m_loadingDirectory = true;
1016
1017     m_dirLister->stop();
1018     m_dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
1019
1020     if (isColumnViewActive()) {
1021         // adjusting the directory lister is not enough in the case of the
1022         // column view, as each column has its own directory lister internally...
1023         if (reload) {
1024             m_columnView->reload();
1025         } else {
1026             m_columnView->showColumn(url);
1027         }
1028     }
1029 }
1030
1031 KUrl DolphinView::viewPropertiesUrl() const
1032 {
1033     if (isColumnViewActive()) {
1034         return m_columnView->rootUrl();
1035     }
1036
1037     return url();
1038 }
1039
1040 void DolphinView::applyViewProperties(const KUrl& url)
1041 {
1042     if (isColumnViewActive() && rootUrl().isParentOf(url)) {
1043         // The column view is active, hence don't apply the view properties
1044         // of sub directories (represented by columns) to the view. The
1045         // view always represents the properties of the first column.
1046         return;
1047     }
1048
1049     const ViewProperties props(url);
1050
1051     const Mode mode = props.viewMode();
1052     if (m_mode != mode) {
1053         m_mode = mode;
1054         createView();
1055         emit modeChanged();
1056     }
1057     if (itemView() == 0) {
1058         createView();
1059     }
1060     Q_ASSERT(itemView() != 0);
1061     Q_ASSERT(m_fileItemDelegate != 0);
1062
1063     const bool showHiddenFiles = props.showHiddenFiles();
1064     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
1065         m_dirLister->setShowingDotFiles(showHiddenFiles);
1066         emit showHiddenFilesChanged();
1067     }
1068
1069     m_storedCategorizedSorting = props.categorizedSorting();
1070     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1071     if (categorized != m_proxyModel->isCategorizedModel()) {
1072         m_proxyModel->setCategorizedModel(categorized);
1073         emit categorizedSortingChanged();
1074     }
1075
1076     const DolphinView::Sorting sorting = props.sorting();
1077     if (sorting != m_proxyModel->sorting()) {
1078         m_proxyModel->setSorting(sorting);
1079         emit sortingChanged(sorting);
1080     }
1081
1082     const Qt::SortOrder sortOrder = props.sortOrder();
1083     if (sortOrder != m_proxyModel->sortOrder()) {
1084         m_proxyModel->setSortOrder(sortOrder);
1085         emit sortOrderChanged(sortOrder);
1086     }
1087
1088     KFileItemDelegate::InformationList info = props.additionalInfo();
1089     if (info != m_fileItemDelegate->showInformation()) {
1090         m_fileItemDelegate->setShowInformation(info);
1091         emit additionalInfoChanged();
1092     }
1093
1094     const bool showPreview = props.showPreview();
1095     if (showPreview != m_showPreview) {
1096         m_showPreview = showPreview;
1097         m_previewGenerator->setPreviewShown(showPreview);
1098
1099         const int oldZoomLevel = m_controller->zoomLevel();
1100         emit showPreviewChanged();
1101
1102         // Enabling or disabling the preview might change the icon size of the view.
1103         // As the view does not emit a signal when the icon size has been changed,
1104         // the used zoom level of the controller must be adjusted manually:
1105         updateZoomLevel(oldZoomLevel);
1106     }
1107 }
1108
1109 void DolphinView::createView()
1110 {
1111     deleteView();
1112     Q_ASSERT(m_iconsView == 0);
1113     Q_ASSERT(m_detailsView == 0);
1114     Q_ASSERT(m_columnView == 0);
1115
1116     QAbstractItemView* view = 0;
1117     switch (m_mode) {
1118     case IconsView: {
1119         m_iconsView = new DolphinIconsView(this, m_controller);
1120         view = m_iconsView;
1121         break;
1122     }
1123
1124     case DetailsView:
1125         m_detailsView = new DolphinDetailsView(this, m_controller);
1126         view = m_detailsView;
1127         break;
1128
1129     case ColumnView:
1130         m_columnView = new DolphinColumnView(this, m_controller);
1131         view = m_columnView;
1132         break;
1133     }
1134
1135     Q_ASSERT(view != 0);
1136     view->installEventFilter(this);
1137
1138     if (m_mode != ColumnView) {
1139         // Give the view the ability to auto-expand its directories on hovering
1140         // (the column view takes care about this itself). If the details view
1141         // uses expandable folders, the auto-expanding should be used always.
1142         DolphinSettings& settings = DolphinSettings::instance();
1143         const bool enabled = settings.generalSettings()->autoExpandFolders() ||
1144                             ((m_detailsView != 0) && settings.detailsModeSettings()->expandableFolders());
1145
1146         FolderExpander* folderExpander = new FolderExpander(view, m_proxyModel);
1147         folderExpander->setEnabled(enabled);
1148         connect(folderExpander, SIGNAL(enterDir(const QModelIndex&)),
1149                 m_controller, SLOT(triggerItem(const QModelIndex&)));
1150     }
1151
1152     m_controller->setItemView(view);
1153
1154     m_fileItemDelegate = new KFileItemDelegate(view);
1155     m_fileItemDelegate->setShowToolTipWhenElided(false);
1156     view->setItemDelegate(m_fileItemDelegate);
1157
1158     view->setModel(m_proxyModel);
1159     if (m_selectionModel != 0) {
1160         view->setSelectionModel(m_selectionModel);
1161     } else {
1162         m_selectionModel = view->selectionModel();
1163     }
1164
1165     // reparent the selection model, as it should not be deleted
1166     // when deleting the model
1167     m_selectionModel->setParent(this);
1168
1169     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
1170
1171     m_previewGenerator = new KFilePreviewGenerator(view, m_proxyModel);
1172     m_previewGenerator->setPreviewShown(m_showPreview);
1173
1174     if (DolphinSettings::instance().generalSettings()->showToolTips()) {
1175         m_toolTipManager = new ToolTipManager(view, m_proxyModel);
1176     }
1177
1178     m_topLayout->insertWidget(1, view);
1179
1180     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
1181             this, SLOT(emitSelectionChangedSignal()));
1182     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
1183             this, SLOT(emitContentsMoved()));
1184     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
1185             this, SLOT(emitContentsMoved()));
1186 }
1187
1188 void DolphinView::deleteView()
1189 {
1190     QAbstractItemView* view = itemView();
1191     if (view != 0) {
1192         // It's important to set the keyboard focus to the parent
1193         // before deleting the view: Otherwise when having a split
1194         // view the other view will get the focus and will request
1195         // an activation (see DolphinView::eventFilter()).
1196         setFocus();
1197
1198         m_topLayout->removeWidget(view);
1199         view->close();
1200         view->deleteLater();
1201         view = 0;
1202         m_iconsView = 0;
1203         m_detailsView = 0;
1204         m_columnView = 0;
1205         m_fileItemDelegate = 0;
1206         m_previewGenerator = 0;
1207         m_toolTipManager = 0;
1208     }
1209 }
1210
1211 QAbstractItemView* DolphinView::itemView() const
1212 {
1213     if (m_detailsView != 0) {
1214         return m_detailsView;
1215     } else if (m_columnView != 0) {
1216         return m_columnView;
1217     }
1218
1219     return m_iconsView;
1220 }
1221
1222 bool DolphinView::isCutItem(const KFileItem& item) const
1223 {
1224     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
1225     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
1226
1227     const KUrl& itemUrl = item.url();
1228     KUrl::List::const_iterator it = cutUrls.begin();
1229     const KUrl::List::const_iterator end = cutUrls.end();
1230     while (it != end) {
1231         if (*it == itemUrl) {
1232             return true;
1233         }
1234         ++it;
1235     }
1236
1237     return false;
1238 }
1239
1240 void DolphinView::pasteToUrl(const KUrl& url)
1241 {
1242     QClipboard* clipboard = QApplication::clipboard();
1243     const QMimeData* mimeData = clipboard->mimeData();
1244
1245     const KUrl::List sourceUrls = KUrl::List::fromMimeData(mimeData);
1246     if (KonqMimeData::decodeIsCutSelection(mimeData)) {
1247         KonqOperations::copy(this, KonqOperations::MOVE, sourceUrls, url);
1248         clipboard->clear();
1249     } else {
1250         KonqOperations::copy(this, KonqOperations::COPY, sourceUrls, url);
1251     }
1252 }
1253
1254 void DolphinView::updateZoomLevel(int oldZoomLevel)
1255 {
1256     const int newZoomLevel = ZoomLevelInfo::zoomLevelForIconSize(itemView()->iconSize());
1257     if (oldZoomLevel != newZoomLevel) {
1258         m_controller->setZoomLevel(newZoomLevel);
1259         emit zoomLevelChanged(newZoomLevel);
1260     }
1261 }
1262
1263 KUrl::List DolphinView::simplifiedSelectedUrls() const
1264 {
1265     KUrl::List list = selectedUrls();
1266     if ((m_detailsView != 0) && m_detailsView->itemsExpandable()) {
1267         list = KonqOperations::simplifiedUrlList(list);
1268     }
1269     return list;
1270 }
1271
1272 #include "dolphinview.moc"