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     const KUrl::List list = simplifiedSelectedUrls();
 609     KonqOperations::del(this, KonqOperations::TRASH, list);
 610 }
 611
 612 void DolphinView::deleteSelectedItems()
 613 {
 614     const KUrl::List list = simplifiedSelectedUrls();
 615     const bool del = KonqOperations::askDeleteConfirmation(list,
 616                      KonqOperations::DEL,
 617                      KonqOperations::DEFAULT_CONFIRMATION,
 618                      this);
 619
 620     if (del) {
 621         KIO::Job* job = KIO::del(list);
 622         connect(job, SIGNAL(result(KJob*)),
 623                 this, SLOT(slotDeleteFileFinished(KJob*)));
 624     }
 625 }
 626
 627 void DolphinView::cutSelectedItems()
 628 {
 629     QMimeData* mimeData = new QMimeData();
 630     const KUrl::List kdeUrls = simplifiedSelectedUrls();
 631     const KUrl::List mostLocalUrls;
 632     KonqMimeData::populateMimeData(mimeData, kdeUrls, mostLocalUrls, true);
 633     QApplication::clipboard()->setMimeData(mimeData);
 634 }
 635
 636 void DolphinView::copySelectedItems()
 637 {
 638     QMimeData* mimeData = new QMimeData();
 639     const KUrl::List kdeUrls = selectedUrls();
 640     const KUrl::List mostLocalUrls;
 641     KonqMimeData::populateMimeData(mimeData, kdeUrls, mostLocalUrls, false);
 642     QApplication::clipboard()->setMimeData(mimeData);
 643 }
 644
 645 void DolphinView::paste()
 646 {
 647     pasteToUrl(url());
 648 }
 649
 650 void DolphinView::pasteIntoFolder()
 651 {
 652     const KFileItemList items = selectedItems();
 653     if ((items.count() == 1) && items.first().isDir()) {
 654         pasteToUrl(items.first().url());
 655     }
 656 }
 657
 658 void DolphinView::setShowPreview(bool show)
 659 {
 660     if (m_showPreview == show) {
 661         return;
 662     }
 663
 664     const KUrl viewPropsUrl = viewPropertiesUrl();
 665     ViewProperties props(viewPropsUrl);
 666     props.setShowPreview(show);
 667
 668     m_showPreview = show;
 669     m_iconManager->setShowPreview(show);
 670
 671     const int oldZoomLevel = m_controller->zoomLevel();
 672     emit showPreviewChanged();
 673
 674     // Enabling or disabling the preview might change the icon size of the view.
 675     // As the view does not emit a signal when the icon size has been changed,
 676     // the used zoom level of the controller must be adjusted manually:
 677     updateZoomLevel(oldZoomLevel);
 678
 679     loadDirectory(viewPropsUrl);
 680 }
 681
 682 void DolphinView::setShowHiddenFiles(bool show)
 683 {
 684     if (m_dirLister->showingDotFiles() == show) {
 685         return;
 686     }
 687
 688     const KUrl viewPropsUrl = viewPropertiesUrl();
 689     ViewProperties props(viewPropsUrl);
 690     props.setShowHiddenFiles(show);
 691
 692     m_dirLister->setShowingDotFiles(show);
 693     emit showHiddenFilesChanged();
 694
 695     loadDirectory(viewPropsUrl);
 696 }
 697
 698 void DolphinView::setCategorizedSorting(bool categorized)
 699 {
 700     if (categorized == categorizedSorting()) {
 701         return;
 702     }
 703
 704     // setCategorizedSorting(true) may only get invoked
 705     // if the view supports categorized sorting
 706     Q_ASSERT(!categorized || supportsCategorizedSorting());
 707
 708     ViewProperties props(viewPropertiesUrl());
 709     props.setCategorizedSorting(categorized);
 710     props.save();
 711
 712     m_storedCategorizedSorting = categorized;
 713     m_proxyModel->setCategorizedModel(categorized);
 714
 715     emit categorizedSortingChanged();
 716 }
 717
 718 void DolphinView::toggleSortOrder()
 719 {
 720     const Qt::SortOrder order = (sortOrder() == Qt::AscendingOrder) ?
 721                                 Qt::DescendingOrder :
 722                                 Qt::AscendingOrder;
 723     setSortOrder(order);
 724 }
 725
 726 void DolphinView::toggleAdditionalInfo(QAction* action)
 727 {
 728     const KFileItemDelegate::Information info =
 729         static_cast<KFileItemDelegate::Information>(action->data().toInt());
 730
 731     KFileItemDelegate::InformationList list = additionalInfo();
 732
 733     const bool show = action->isChecked();
 734
 735     const int index = list.indexOf(info);
 736     const bool containsInfo = (index >= 0);
 737     if (show && !containsInfo) {
 738         list.append(info);
 739         setAdditionalInfo(list);
 740     } else if (!show && containsInfo) {
 741         list.removeAt(index);
 742         setAdditionalInfo(list);
 743         Q_ASSERT(list.indexOf(info) < 0);
 744     }
 745 }
 746
 747 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 748 {
 749     QWidget::mouseReleaseEvent(event);
 750     setActive(true);
 751 }
 752
 753 void DolphinView::wheelEvent(QWheelEvent* event)
 754 {
 755     if (event->modifiers() & Qt::ControlModifier) {
 756         const int delta = event->delta();
 757         const int level = zoomLevel();
 758         if (delta > 0) {
 759             setZoomLevel(level + 1);
 760         } else if (delta < 0) {
 761             setZoomLevel(level - 1);
 762         }
 763         event->accept();
 764     }
 765 }
 766
 767 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 768 {
 769     if ((watched == itemView()) && (event->type() == QEvent::FocusIn)) {
 770         m_controller->requestActivation();
 771     }
 772
 773     return QWidget::eventFilter(watched, event);
 774 }
 775
 776 void DolphinView::activate()
 777 {
 778     setActive(true);
 779 }
 780
 781 void DolphinView::triggerItem(const KFileItem& item)
 782 {
 783     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 784     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 785         // items are selected by the user, hence don't trigger the
 786         // item specified by 'index'
 787         return;
 788     }
 789
 790     // TODO: the m_isContextMenuOpen check is a workaround for Qt-issue 207192
 791     if (item.isNull() || m_isContextMenuOpen) {
 792         return;
 793     }
 794
 795     if (m_toolTipManager != 0) {
 796         m_toolTipManager->hideTip();
 797     }
 798     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 799 }
 800
 801 void DolphinView::emitSelectionChangedSignal()
 802 {
 803     emit selectionChanged(DolphinView::selectedItems());
 804 }
 805
 806 void DolphinView::openContextMenu(const QPoint& pos)
 807 {
 808     KFileItem item;
 809     if (isColumnViewActive()) {
 810         item = m_columnView->itemAt(pos);
 811     } else {
 812         const QModelIndex index = itemView()->indexAt(pos);
 813         if (index.isValid() && (index.column() == DolphinModel::Name)) {
 814             const QModelIndex dolphinModelIndex = m_proxyModel->mapToSource(index);
 815             item = m_dolphinModel->itemForIndex(dolphinModelIndex);
 816         }
 817     }
 818
 819     if (m_toolTipManager != 0) {
 820         m_toolTipManager->hideTip();
 821     }
 822
 823     m_isContextMenuOpen = true; // TODO: workaround for Qt-issue 207192
 824     emit requestContextMenu(item, url());
 825     m_isContextMenuOpen = false;
 826 }
 827
 828 void DolphinView::dropUrls(const KUrl::List& urls,
 829                            const KUrl& destPath,
 830                            const KFileItem& destItem)
 831 {
 832     Q_ASSERT(!urls.isEmpty());
 833     const KUrl destination = !destItem.isNull() && destItem.isDir() ?
 834                              destItem.url() : destPath;
 835     const KUrl sourceDir = KUrl(urls.first().directory());
 836     if (sourceDir != destination) {
 837         DolphinDropController dropController(this);
 838         // forward doingOperation signal up to the mainwindow
 839         connect(&dropController, SIGNAL(doingOperation(KIO::FileUndoManager::CommandType)),
 840                 this, SIGNAL(doingOperation(KIO::FileUndoManager::CommandType)));
 841         dropController.dropUrls(urls, destination);
 842     }
 843 }
 844
 845 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 846 {
 847     ViewProperties props(viewPropertiesUrl());
 848     props.setSorting(sorting);
 849
 850     m_proxyModel->setSorting(sorting);
 851
 852     emit sortingChanged(sorting);
 853 }
 854
 855 void DolphinView::updateSortOrder(Qt::SortOrder order)
 856 {
 857     ViewProperties props(viewPropertiesUrl());
 858     props.setSortOrder(order);
 859
 860     m_proxyModel->setSortOrder(order);
 861
 862     emit sortOrderChanged(order);
 863 }
 864
 865 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 866 {
 867     ViewProperties props(viewPropertiesUrl());
 868     props.setAdditionalInfo(info);
 869     props.save();
 870
 871     m_fileItemDelegate->setShowInformation(info);
 872
 873     emit additionalInfoChanged();
 874 }
 875
 876 void DolphinView::updateAdditionalInfoActions(KActionCollection* collection)
 877 {
 878     const bool enable = (m_mode == DolphinView::DetailsView) ||
 879                         (m_mode == DolphinView::IconsView);
 880
 881     QAction* showSizeInfo = collection->action("show_size_info");
 882     QAction* showDateInfo = collection->action("show_date_info");
 883     QAction* showPermissionsInfo = collection->action("show_permissions_info");
 884     QAction* showOwnerInfo = collection->action("show_owner_info");
 885     QAction* showGroupInfo = collection->action("show_group_info");
 886     QAction* showMimeInfo = collection->action("show_mime_info");
 887
 888     showSizeInfo->setChecked(false);
 889     showDateInfo->setChecked(false);
 890     showPermissionsInfo->setChecked(false);
 891     showOwnerInfo->setChecked(false);
 892     showGroupInfo->setChecked(false);
 893     showMimeInfo->setChecked(false);
 894
 895     showSizeInfo->setEnabled(enable);
 896     showDateInfo->setEnabled(enable);
 897     showPermissionsInfo->setEnabled(enable);
 898     showOwnerInfo->setEnabled(enable);
 899     showGroupInfo->setEnabled(enable);
 900     showMimeInfo->setEnabled(enable);
 901
 902     foreach (KFileItemDelegate::Information info, m_fileItemDelegate->showInformation()) {
 903         switch (info) {
 904         case KFileItemDelegate::Size:
 905             showSizeInfo->setChecked(true);
 906             break;
 907         case KFileItemDelegate::ModificationTime:
 908             showDateInfo->setChecked(true);
 909             break;
 910         case KFileItemDelegate::Permissions:
 911             showPermissionsInfo->setChecked(true);
 912             break;
 913         case KFileItemDelegate::Owner:
 914             showOwnerInfo->setChecked(true);
 915             break;
 916         case KFileItemDelegate::OwnerAndGroup:
 917             showGroupInfo->setChecked(true);
 918             break;
 919         case KFileItemDelegate::FriendlyMimeType:
 920             showMimeInfo->setChecked(true);
 921             break;
 922         default:
 923             break;
 924         }
 925     }
 926 }
 927
 928 QPair<bool, QString> DolphinView::pasteInfo() const
 929 {
 930     QPair<bool, QString> ret;
 931     QClipboard* clipboard = QApplication::clipboard();
 932     const QMimeData* mimeData = clipboard->mimeData();
 933
 934     KUrl::List urls = KUrl::List::fromMimeData(mimeData);
 935     if (!urls.isEmpty()) {
 936         // disable the paste action if no writing is supported
 937         KFileItem item(KFileItem::Unknown, KFileItem::Unknown, url());
 938         ret.first = KonqFileItemCapabilities(KFileItemList() << item).supportsWriting();
 939
 940         if (urls.count() == 1) {
 941             const KFileItem item(KFileItem::Unknown, KFileItem::Unknown, urls.first(), true);
 942             ret.second = item.isDir() ? i18nc("@action:inmenu", "Paste One Folder") :
 943                                         i18nc("@action:inmenu", "Paste One File");
 944
 945         } else {
 946             ret.second = i18ncp("@action:inmenu", "Paste One Item", "Paste %1 Items", urls.count());
 947         }
 948     } else {
 949         ret.first = false;
 950         ret.second = i18nc("@action:inmenu", "Paste");
 951     }
 952
 953     return ret;
 954 }
 955
 956 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
 957 {
 958     m_tabsForFiles = tabsForFiles;
 959 }
 960
 961 bool DolphinView::isTabsForFilesEnabled() const
 962 {
 963     return m_tabsForFiles;
 964 }
 965
 966 void DolphinView::emitContentsMoved()
 967 {
 968     // only emit the contents moved signal if:
 969     // - no directory loading is ongoing (this would reset the contents position
 970     //   always to (0, 0))
 971     // - if the Column View is active: the column view does an automatic
 972     //   positioning during the loading operation, which must be remembered
 973     if (!m_loadingDirectory || isColumnViewActive()) {
 974         const QPoint pos(contentsPosition());
 975         emit contentsMoved(pos.x(), pos.y());
 976     }
 977 }
 978
 979 void DolphinView::showHoverInformation(const KFileItem& item)
 980 {
 981     emit requestItemInfo(item);
 982 }
 983
 984 void DolphinView::clearHoverInformation()
 985 {
 986     emit requestItemInfo(KFileItem());
 987 }
 988
 989 void DolphinView::slotDeleteFileFinished(KJob* job)
 990 {
 991     if (job->error() == 0) {
 992         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
 993     } else {
 994         emit errorMessage(job->errorString());
 995     }
 996 }
 997
 998 void DolphinView::slotRedirection(const KUrl& oldUrl, const KUrl& newUrl)
 999 {
1000     if (oldUrl == m_controller->url()) {
1001         m_controller->setUrl(newUrl);
1002     }
1003 }
1004
1005 void DolphinView::slotRequestUrlChange(const KUrl& url)
1006 {
1007     emit requestUrlChange(url);
1008     m_controller->setUrl(url);
1009 }
1010
1011 void DolphinView::restoreCurrentItem()
1012 {
1013     const QModelIndex dirIndex = m_dolphinModel->indexForUrl(m_currentItemUrl);
1014     if (dirIndex.isValid()) {
1015         const QModelIndex proxyIndex = m_proxyModel->mapFromSource(dirIndex);
1016         QAbstractItemView* view = itemView();
1017         const bool clearSelection = !hasSelection();
1018         view->setCurrentIndex(proxyIndex);
1019         if (clearSelection) {
1020             view->clearSelection();
1021         }
1022     }
1023 }
1024
1025 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1026 {
1027     if (!url.isValid()) {
1028         const QString location(url.pathOrUrl());
1029         if (location.isEmpty()) {
1030             emit errorMessage(i18nc("@info:status", "The location is empty."));
1031         } else {
1032             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1033         }
1034         return;
1035     }
1036
1037     m_loadingDirectory = true;
1038
1039     m_dirLister->stop();
1040     m_dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
1041
1042     if (isColumnViewActive()) {
1043         // adjusting the directory lister is not enough in the case of the
1044         // column view, as each column has its own directory lister internally...
1045         if (reload) {
1046             m_columnView->reload();
1047         } else {
1048             m_columnView->showColumn(url);
1049         }
1050     }
1051 }
1052
1053 KUrl DolphinView::viewPropertiesUrl() const
1054 {
1055     if (isColumnViewActive()) {
1056         return m_columnView->rootUrl();
1057     }
1058
1059     return url();
1060 }
1061
1062 void DolphinView::applyViewProperties(const KUrl& url)
1063 {
1064     if (isColumnViewActive() && rootUrl().isParentOf(url)) {
1065         // The column view is active, hence don't apply the view properties
1066         // of sub directories (represented by columns) to the view. The
1067         // view always represents the properties of the first column.
1068         return;
1069     }
1070
1071     const ViewProperties props(url);
1072
1073     const Mode mode = props.viewMode();
1074     if (m_mode != mode) {
1075         m_mode = mode;
1076         createView();
1077         emit modeChanged();
1078     }
1079     if (itemView() == 0) {
1080         createView();
1081     }
1082     Q_ASSERT(itemView() != 0);
1083     Q_ASSERT(m_fileItemDelegate != 0);
1084
1085     const bool showHiddenFiles = props.showHiddenFiles();
1086     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
1087         m_dirLister->setShowingDotFiles(showHiddenFiles);
1088         emit showHiddenFilesChanged();
1089     }
1090
1091     m_storedCategorizedSorting = props.categorizedSorting();
1092     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1093     if (categorized != m_proxyModel->isCategorizedModel()) {
1094         m_proxyModel->setCategorizedModel(categorized);
1095         emit categorizedSortingChanged();
1096     }
1097
1098     const DolphinView::Sorting sorting = props.sorting();
1099     if (sorting != m_proxyModel->sorting()) {
1100         m_proxyModel->setSorting(sorting);
1101         emit sortingChanged(sorting);
1102     }
1103
1104     const Qt::SortOrder sortOrder = props.sortOrder();
1105     if (sortOrder != m_proxyModel->sortOrder()) {
1106         m_proxyModel->setSortOrder(sortOrder);
1107         emit sortOrderChanged(sortOrder);
1108     }
1109
1110     KFileItemDelegate::InformationList info = props.additionalInfo();
1111     if (info != m_fileItemDelegate->showInformation()) {
1112         m_fileItemDelegate->setShowInformation(info);
1113         emit additionalInfoChanged();
1114     }
1115
1116     const bool showPreview = props.showPreview();
1117     if (showPreview != m_showPreview) {
1118         m_showPreview = showPreview;
1119         m_iconManager->setShowPreview(showPreview);
1120
1121         const int oldZoomLevel = m_controller->zoomLevel();
1122         emit showPreviewChanged();
1123
1124         // Enabling or disabling the preview might change the icon size of the view.
1125         // As the view does not emit a signal when the icon size has been changed,
1126         // the used zoom level of the controller must be adjusted manually:
1127         updateZoomLevel(oldZoomLevel);
1128     }
1129 }
1130
1131 void DolphinView::createView()
1132 {
1133     deleteView();
1134     Q_ASSERT(m_iconsView == 0);
1135     Q_ASSERT(m_detailsView == 0);
1136     Q_ASSERT(m_columnView == 0);
1137
1138     QAbstractItemView* view = 0;
1139     switch (m_mode) {
1140     case IconsView: {
1141         m_iconsView = new DolphinIconsView(this, m_controller);
1142         view = m_iconsView;
1143         break;
1144     }
1145
1146     case DetailsView:
1147         m_detailsView = new DolphinDetailsView(this, m_controller);
1148         view = m_detailsView;
1149         break;
1150
1151     case ColumnView:
1152         m_columnView = new DolphinColumnView(this, m_controller);
1153         view = m_columnView;
1154         break;
1155     }
1156
1157     Q_ASSERT(view != 0);
1158     view->installEventFilter(this);
1159
1160     if (m_mode != ColumnView) {
1161         // Give the view the ability to auto-expand its directories on hovering
1162         // (the column view takes care about this itself). If the details view
1163         // uses expandable folders, the auto-expanding should be used always.
1164         DolphinSettings& settings = DolphinSettings::instance();
1165         const bool enabled = settings.generalSettings()->autoExpandFolders() ||
1166                             ((m_detailsView != 0) && settings.detailsModeSettings()->expandableFolders());
1167
1168         FolderExpander* folderExpander = new FolderExpander(view, m_proxyModel);
1169         folderExpander->setEnabled(enabled);
1170         connect(folderExpander, SIGNAL(enterDir(const QModelIndex&)),
1171                 m_controller, SLOT(triggerItem(const QModelIndex&)));
1172     }
1173
1174     m_controller->setItemView(view);
1175
1176     m_fileItemDelegate = new KFileItemDelegate(view);
1177     view->setItemDelegate(m_fileItemDelegate);
1178
1179     view->setModel(m_proxyModel);
1180     if (m_selectionModel != 0) {
1181         view->setSelectionModel(m_selectionModel);
1182     } else {
1183         m_selectionModel = view->selectionModel();
1184     }
1185
1186     // reparent the selection model, as it should not be deleted
1187     // when deleting the model
1188     m_selectionModel->setParent(this);
1189
1190     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
1191
1192     m_iconManager = new IconManager(view, m_proxyModel);
1193     m_iconManager->setShowPreview(m_showPreview);
1194
1195     if (DolphinSettings::instance().generalSettings()->showToolTips()) {
1196         m_toolTipManager = new ToolTipManager(view, m_proxyModel);
1197     }
1198
1199     m_topLayout->insertWidget(1, view);
1200
1201     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
1202             this, SLOT(emitSelectionChangedSignal()));
1203     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
1204             this, SLOT(emitContentsMoved()));
1205     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
1206             this, SLOT(emitContentsMoved()));
1207 }
1208
1209 void DolphinView::deleteView()
1210 {
1211     QAbstractItemView* view = itemView();
1212     if (view != 0) {
1213         // It's important to set the keyboard focus to the parent
1214         // before deleting the view: Otherwise when having a split
1215         // view the other view will get the focus and will request
1216         // an activation (see DolphinView::eventFilter()).
1217         setFocus();
1218
1219         m_topLayout->removeWidget(view);
1220         view->close();
1221         view->deleteLater();
1222         view = 0;
1223         m_iconsView = 0;
1224         m_detailsView = 0;
1225         m_columnView = 0;
1226         m_fileItemDelegate = 0;
1227         m_iconManager = 0;
1228         m_toolTipManager = 0;
1229     }
1230 }
1231
1232 QAbstractItemView* DolphinView::itemView() const
1233 {
1234     if (m_detailsView != 0) {
1235         return m_detailsView;
1236     } else if (m_columnView != 0) {
1237         return m_columnView;
1238     }
1239
1240     return m_iconsView;
1241 }
1242
1243 bool DolphinView::isCutItem(const KFileItem& item) const
1244 {
1245     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
1246     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
1247
1248     const KUrl& itemUrl = item.url();
1249     KUrl::List::const_iterator it = cutUrls.begin();
1250     const KUrl::List::const_iterator end = cutUrls.end();
1251     while (it != end) {
1252         if (*it == itemUrl) {
1253             return true;
1254         }
1255         ++it;
1256     }
1257
1258     return false;
1259 }
1260
1261 void DolphinView::pasteToUrl(const KUrl& url)
1262 {
1263     QClipboard* clipboard = QApplication::clipboard();
1264     const QMimeData* mimeData = clipboard->mimeData();
1265
1266     const KUrl::List sourceUrls = KUrl::List::fromMimeData(mimeData);
1267     if (KonqMimeData::decodeIsCutSelection(mimeData)) {
1268         KonqOperations::copy(this, KonqOperations::MOVE, sourceUrls, url);
1269         emit doingOperation(KIO::FileUndoManager::Move);
1270         clipboard->clear();
1271     } else {
1272         KonqOperations::copy(this, KonqOperations::COPY, sourceUrls, url);
1273         emit doingOperation(KIO::FileUndoManager::Copy);
1274     }
1275 }
1276
1277 void DolphinView::updateZoomLevel(int oldZoomLevel)
1278 {
1279     const int newZoomLevel = DolphinController::zoomLevelForIconSize(itemView()->iconSize());
1280     if (oldZoomLevel != newZoomLevel) {
1281         m_controller->setZoomLevel(newZoomLevel);
1282         emit zoomLevelChanged(newZoomLevel);
1283     }
1284 }
1285
1286 KUrl::List DolphinView::simplifiedSelectedUrls() const
1287 {
1288     KUrl::List list = selectedUrls();
1289     if ((m_detailsView != 0) && m_detailsView->itemsExpandable()) {
1290         list = KonqOperations::simplifiedUrlList(list);
1291     }
1292     return list;
1293 }
1294
1295 #include "dolphinview.moc"