src/dolphinview.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006 by Peter Penz <peter.penz@gmx.at>                  *
   3  *   Copyright (C) 2006 by Gregor Kališnik <gregor@podnapisi.net>          *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  19  ***************************************************************************/
  20
  21 #include "dolphinview.h"
  22
  23 #include <QApplication>
  24 #include <QClipboard>
  25 #include <QKeyEvent>
  26 #include <QItemSelection>
  27 #include <QBoxLayout>
  28 #include <QTimer>
  29 #include <QScrollBar>
  30
  31 #include <kactioncollection.h>
  32 #include <kcolorscheme.h>
  33 #include <kdirlister.h>
  34 #include <kfileitemdelegate.h>
  35 #include <kiconeffect.h>
  36 #include <klocale.h>
  37 #include <kio/deletejob.h>
  38 #include <kio/netaccess.h>
  39 #include <kio/previewjob.h>
  40 #include <kjob.h>
  41 #include <kmenu.h>
  42 #include <kmessagebox.h>
  43 #include <kmimetyperesolver.h>
  44 #include <konq_operations.h>
  45 #include <konqmimedata.h>
  46 #include <ktoggleaction.h>
  47 #include <kurl.h>
  48
  49 #include "dolphindropcontroller.h"
  50 #include "dolphinmodel.h"
  51 #include "dolphincolumnview.h"
  52 #include "dolphincontroller.h"
  53 #include "dolphinsortfilterproxymodel.h"
  54 #include "dolphindetailsview.h"
  55 #include "dolphiniconsview.h"
  56 #include "dolphinsettings.h"
  57 #include "dolphin_generalsettings.h"
  58 #include "iconmanager.h"
  59 #include "renamedialog.h"
  60 #include "tooltipmanager.h"
  61 #include "viewproperties.h"
  62
  63 DolphinView::DolphinView(QWidget* parent,
  64                          const KUrl& url,
  65                          KDirLister* dirLister,
  66                          DolphinModel* dolphinModel,
  67                          DolphinSortFilterProxyModel* proxyModel) :
  68     QWidget(parent),
  69     m_active(true),
  70     m_showPreview(false),
  71     m_loadingDirectory(false),
  72     m_storedCategorizedSorting(false),
  73     m_tabsForFiles(false),
  74     m_isContextMenuOpen(false),
  75     m_mode(DolphinView::IconsView),
  76     m_topLayout(0),
  77     m_controller(0),
  78     m_iconsView(0),
  79     m_detailsView(0),
  80     m_columnView(0),
  81     m_fileItemDelegate(0),
  82     m_selectionModel(0),
  83     m_dolphinModel(dolphinModel),
  84     m_dirLister(dirLister),
  85     m_proxyModel(proxyModel),
  86     m_iconManager(0),
  87     m_toolTipManager(0),
  88     m_rootUrl(),
  89     m_currentItemUrl()
  90 {
  91     m_topLayout = new QVBoxLayout(this);
  92     m_topLayout->setSpacing(0);
  93     m_topLayout->setMargin(0);
  94
  95     m_controller = new DolphinController(this);
  96     m_controller->setUrl(url);
  97
  98     // Receiver of the DolphinView signal 'urlChanged()' don't need
  99     // to care whether the internal controller changed the URL already or whether
 100     // the controller just requested an URL change and will be updated later.
 101     // In both cases the URL has been changed:
 102     connect(m_controller, SIGNAL(urlChanged(const KUrl&)),
 103             this, SIGNAL(urlChanged(const KUrl&)));
 104     connect(m_controller, SIGNAL(requestUrlChange(const KUrl&)),
 105             this, SIGNAL(urlChanged(const KUrl&)));
 106
 107     connect(m_controller, SIGNAL(requestContextMenu(const QPoint&)),
 108             this, SLOT(openContextMenu(const QPoint&)));
 109     connect(m_controller, SIGNAL(urlsDropped(const KUrl::List&, const KUrl&, const KFileItem&)),
 110             this, SLOT(dropUrls(const KUrl::List&, const KUrl&, const KFileItem&)));
 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(completed()),
 129             this, SLOT(restoreCurrentItem()));
 130
 131     applyViewProperties(url);
 132     m_topLayout->addWidget(itemView());
 133 }
 134
 135 DolphinView::~DolphinView()
 136 {
 137 }
 138
 139 const KUrl& DolphinView::url() const
 140 {
 141     return m_controller->url();
 142 }
 143
 144 KUrl DolphinView::rootUrl() const
 145 {
 146     return isColumnViewActive() ? m_columnView->rootUrl() : url();
 147 }
 148
 149 void DolphinView::setActive(bool active)
 150 {
 151     if (active == m_active) {
 152         return;
 153     }
 154
 155     m_active = active;
 156     m_selectionModel->clearSelection();
 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         emit activated();
 178     }
 179
 180     m_controller->indicateActivationChange(active);
 181 }
 182
 183 bool DolphinView::isActive() const
 184 {
 185     return m_active;
 186 }
 187
 188 void DolphinView::setMode(Mode mode)
 189 {
 190     if (mode == m_mode) {
 191         return; // the wished mode is already set
 192     }
 193
 194     m_mode = mode;
 195
 196     deleteView();
 197
 198     const KUrl viewPropsUrl = viewPropertiesUrl();
 199     ViewProperties props(viewPropsUrl);
 200     props.setViewMode(m_mode);
 201     createView();
 202
 203     // the file item delegate has been recreated, apply the current
 204     // additional information manually
 205     const KFileItemDelegate::InformationList infoList = props.additionalInfo();
 206     m_fileItemDelegate->setShowInformation(infoList);
 207     emit additionalInfoChanged();
 208
 209     // Not all view modes support categorized sorting. Adjust the sorting model
 210     // if changing the view mode results in a change of the categorized sorting
 211     // capabilities.
 212     m_storedCategorizedSorting = props.categorizedSorting();
 213     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 214     if (categorized != m_proxyModel->isCategorizedModel()) {
 215         m_proxyModel->setCategorizedModel(categorized);
 216         emit categorizedSortingChanged();
 217     }
 218
 219     emit modeChanged();
 220 }
 221
 222 DolphinView::Mode DolphinView::mode() const
 223 {
 224     return m_mode;
 225 }
 226
 227 bool DolphinView::showPreview() const
 228 {
 229     return m_showPreview;
 230 }
 231
 232 bool DolphinView::showHiddenFiles() const
 233 {
 234     return m_dirLister->showingDotFiles();
 235 }
 236
 237 bool DolphinView::categorizedSorting() const
 238 {
 239     // If all view modes would support categorized sorting, returning
 240     // m_proxyModel->isCategorizedModel() would be the way to go. As
 241     // currently only the icons view supports caterized sorting, we remember
 242     // the stored view properties state in m_storedCategorizedSorting and
 243     // return this state. The application takes care to disable the corresponding
 244     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 245     // that this setting is not applied to the current view mode.
 246     return m_storedCategorizedSorting;
 247 }
 248
 249 bool DolphinView::supportsCategorizedSorting() const
 250 {
 251     return m_iconsView != 0;
 252 }
 253
 254 void DolphinView::selectAll()
 255 {
 256     QAbstractItemView* view = itemView();
 257     // TODO: there seems to be a bug in QAbstractItemView::selectAll(); if
 258     // the Ctrl-key is pressed (e. g. for Ctrl+A), selectAll() inverts the
 259     // selection instead of selecting all items. This is bypassed for KDE 4.0
 260     // by invoking clearSelection() first.
 261     view->clearSelection();
 262     view->selectAll();
 263 }
 264
 265 void DolphinView::invertSelection()
 266 {
 267     if (isColumnViewActive()) {
 268         // QAbstractItemView does not offer a virtual method invertSelection()
 269         // as counterpart to QAbstractItemView::selectAll(). This makes it
 270         // necessary to delegate the inverting of the selection to the
 271         // column view, as only the selection of the active column should
 272         // get inverted.
 273         m_columnView->invertSelection();
 274     } else {
 275         QItemSelectionModel* selectionModel = itemView()->selectionModel();
 276         const QAbstractItemModel* itemModel = selectionModel->model();
 277
 278         const QModelIndex topLeft = itemModel->index(0, 0);
 279         const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 280                                                          itemModel->columnCount() - 1);
 281
 282         const QItemSelection selection(topLeft, bottomRight);
 283         selectionModel->select(selection, QItemSelectionModel::Toggle);
 284     }
 285 }
 286
 287 bool DolphinView::hasSelection() const
 288 {
 289     return itemView()->selectionModel()->hasSelection();
 290 }
 291
 292 void DolphinView::clearSelection()
 293 {
 294     itemView()->selectionModel()->clear();
 295 }
 296
 297 KFileItemList DolphinView::selectedItems() const
 298 {
 299     const QAbstractItemView* view = itemView();
 300
 301     // Our view has a selection, we will map them back to the DolphinModel
 302     // and then fill the KFileItemList.
 303     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 304
 305     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 306     KFileItemList itemList;
 307
 308     const QModelIndexList indexList = selection.indexes();
 309     foreach (const QModelIndex &index, indexList) {
 310         KFileItem item = m_dolphinModel->itemForIndex(index);
 311         if (!item.isNull()) {
 312             itemList.append(item);
 313         }
 314     }
 315
 316     return itemList;
 317 }
 318
 319 KUrl::List DolphinView::selectedUrls() const
 320 {
 321     KUrl::List urls;
 322     const KFileItemList list = selectedItems();
 323     foreach (const KFileItem &item, list) {
 324         urls.append(item.url());
 325     }
 326     return urls;
 327 }
 328
 329 KFileItem DolphinView::fileItem(const QModelIndex& index) const
 330 {
 331     const QModelIndex dolphinModelIndex = m_proxyModel->mapToSource(index);
 332     return m_dolphinModel->itemForIndex(dolphinModelIndex);
 333 }
 334
 335 void DolphinView::setContentsPosition(int x, int y)
 336 {
 337     QAbstractItemView* view = itemView();
 338
 339     // the ColumnView takes care itself for the horizontal scrolling
 340     if (!isColumnViewActive()) {
 341         view->horizontalScrollBar()->setValue(x);
 342     }
 343     view->verticalScrollBar()->setValue(y);
 344
 345     m_loadingDirectory = false;
 346 }
 347
 348 QPoint DolphinView::contentsPosition() const
 349 {
 350     const int x = itemView()->horizontalScrollBar()->value();
 351     const int y = itemView()->verticalScrollBar()->value();
 352     return QPoint(x, y);
 353 }
 354
 355 void DolphinView::zoomIn()
 356 {
 357     m_controller->triggerZoomIn();
 358     m_iconManager->updatePreviews();
 359 }
 360
 361 void DolphinView::zoomOut()
 362 {
 363     m_controller->triggerZoomOut();
 364     m_iconManager->updatePreviews();
 365 }
 366
 367 bool DolphinView::isZoomInPossible() const
 368 {
 369     return m_controller->isZoomInPossible();
 370 }
 371
 372 bool DolphinView::isZoomOutPossible() const
 373 {
 374     return m_controller->isZoomOutPossible();
 375 }
 376
 377 void DolphinView::setSorting(Sorting sorting)
 378 {
 379     if (sorting != this->sorting()) {
 380         updateSorting(sorting);
 381     }
 382 }
 383
 384 DolphinView::Sorting DolphinView::sorting() const
 385 {
 386     return m_proxyModel->sorting();
 387 }
 388
 389 void DolphinView::setSortOrder(Qt::SortOrder order)
 390 {
 391     if (sortOrder() != order) {
 392         updateSortOrder(order);
 393     }
 394 }
 395
 396 Qt::SortOrder DolphinView::sortOrder() const
 397 {
 398     return m_proxyModel->sortOrder();
 399 }
 400
 401 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 402 {
 403     const KUrl viewPropsUrl = viewPropertiesUrl();
 404     ViewProperties props(viewPropsUrl);
 405     props.setAdditionalInfo(info);
 406     m_fileItemDelegate->setShowInformation(info);
 407
 408     emit additionalInfoChanged();
 409
 410     if (itemView() != m_detailsView) {
 411         // the details view requires no reloading of the directory, as it maps
 412         // the file item delegate info to its columns internally
 413         loadDirectory(viewPropsUrl);
 414     }
 415 }
 416
 417 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 418 {
 419     return m_fileItemDelegate->showInformation();
 420 }
 421
 422 void DolphinView::reload()
 423 {
 424     setUrl(url());
 425     loadDirectory(url(), true);
 426 }
 427
 428 void DolphinView::refresh()
 429 {
 430     const bool oldActivationState = m_active;
 431     m_active = true;
 432
 433     createView();
 434     applyViewProperties(m_controller->url());
 435     reload();
 436
 437     setActive(oldActivationState);
 438 }
 439
 440 void DolphinView::updateView(const KUrl& url, const KUrl& rootUrl)
 441 {
 442     if (m_controller->url() == url) {
 443         return;
 444     }
 445
 446     m_controller->setUrl(url); // emits urlChanged, which we forward
 447
 448     if (!rootUrl.isEmpty() && rootUrl.isParentOf(url)) {
 449         applyViewProperties(rootUrl);
 450         loadDirectory(rootUrl);
 451         if (itemView() == m_columnView) {
 452             m_columnView->setRootUrl(rootUrl);
 453             m_columnView->showColumn(url);
 454         }
 455     } else {
 456         applyViewProperties(url);
 457         loadDirectory(url);
 458     }
 459
 460     emit startedPathLoading(url);
 461 }
 462
 463 void DolphinView::setNameFilter(const QString& nameFilter)
 464 {
 465     m_proxyModel->setFilterRegExp(nameFilter);
 466
 467     if (isColumnViewActive()) {
 468         // adjusting the directory lister is not enough in the case of the
 469         // column view, as each column has its own directory lister internally...
 470         m_columnView->setNameFilter(nameFilter);
 471     }
 472 }
 473
 474 void DolphinView::calculateItemCount(int& fileCount, int& folderCount)
 475 {
 476     foreach (const KFileItem &item, m_dirLister->items()) {
 477         if (item.isDir()) {
 478             ++folderCount;
 479         } else {
 480             ++fileCount;
 481         }
 482     }
 483 }
 484
 485 void DolphinView::setUrl(const KUrl& url)
 486 {
 487     // remember current item candidate (see restoreCurrentItem())
 488     m_currentItemUrl = url;
 489     updateView(url, KUrl());
 490 }
 491
 492 void DolphinView::changeSelection(const KFileItemList& selection)
 493 {
 494     clearSelection();
 495     if (selection.isEmpty()) {
 496         return;
 497     }
 498     const KUrl& baseUrl = url();
 499     KUrl url;
 500     QItemSelection new_selection;
 501     foreach(const KFileItem& item, selection) {
 502         url = item.url().upUrl();
 503         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 504             QModelIndex index = m_proxyModel->mapFromSource(m_dolphinModel->indexForItem(item));
 505             new_selection.select(index, index);
 506         }
 507     }
 508     itemView()->selectionModel()->select(new_selection,
 509                                          QItemSelectionModel::ClearAndSelect
 510                                          | QItemSelectionModel::Current);
 511 }
 512
 513 void DolphinView::renameSelectedItems()
 514 {
 515     const KFileItemList items = selectedItems();
 516     if (items.count() > 1) {
 517         // More than one item has been selected for renaming. Open
 518         // a rename dialog and rename all items afterwards.
 519         RenameDialog dialog(this, items);
 520         if (dialog.exec() == QDialog::Rejected) {
 521             return;
 522         }
 523
 524         const QString newName = dialog.newName();
 525         if (newName.isEmpty()) {
 526             emit errorMessage(dialog.errorString());
 527         } else {
 528             // TODO: check how this can be integrated into KIO::FileUndoManager/KonqOperations
 529             // as one operation instead of n rename operations like it is done now...
 530             Q_ASSERT(newName.contains('#'));
 531
 532             // iterate through all selected items and rename them...
 533             int index = 1;
 534             foreach (const KFileItem &item, items) {
 535                 const KUrl& oldUrl = item.url();
 536                 QString number;
 537                 number.setNum(index++);
 538
 539                 QString name = newName;
 540                 name.replace('#', number);
 541
 542                 if (oldUrl.fileName() != name) {
 543                     KUrl newUrl = oldUrl;
 544                     newUrl.setFileName(name);
 545                     KonqOperations::rename(this, oldUrl, newUrl);
 546                     emit doingOperation(KIO::FileUndoManager::Rename);
 547                 }
 548             }
 549         }
 550     } else if (DolphinSettings::instance().generalSettings()->renameInline()) {
 551         Q_ASSERT(items.count() == 1);
 552
 553         if (isColumnViewActive()) {
 554             m_columnView->editItem(items.first());
 555         } else {
 556             const QModelIndex dirIndex = m_dolphinModel->indexForItem(items.first());
 557             const QModelIndex proxyIndex = m_proxyModel->mapFromSource(dirIndex);
 558             itemView()->edit(proxyIndex);
 559         }
 560     } else {
 561         Q_ASSERT(items.count() == 1);
 562
 563         RenameDialog dialog(this, items);
 564         if (dialog.exec() == QDialog::Rejected) {
 565             return;
 566         }
 567
 568         const QString& newName = dialog.newName();
 569         if (newName.isEmpty()) {
 570             emit errorMessage(dialog.errorString());
 571         } else {
 572             const KUrl& oldUrl = items.first().url();
 573             KUrl newUrl = oldUrl;
 574             newUrl.setFileName(newName);
 575             KonqOperations::rename(this, oldUrl, newUrl);
 576             emit doingOperation(KIO::FileUndoManager::Rename);
 577         }
 578     }
 579 }
 580
 581 void DolphinView::trashSelectedItems()
 582 {
 583     emit doingOperation(KIO::FileUndoManager::Trash);
 584     KonqOperations::del(this, KonqOperations::TRASH, selectedUrls());
 585 }
 586
 587 void DolphinView::deleteSelectedItems()
 588 {
 589     const KUrl::List list = selectedUrls();
 590     const bool del = KonqOperations::askDeleteConfirmation(list,
 591                      KonqOperations::DEL,
 592                      KonqOperations::DEFAULT_CONFIRMATION,
 593                      this);
 594
 595     if (del) {
 596         KIO::Job* job = KIO::del(list);
 597         connect(job, SIGNAL(result(KJob*)),
 598                 this, SLOT(slotDeleteFileFinished(KJob*)));
 599     }
 600 }
 601
 602 void DolphinView::cutSelectedItems()
 603 {
 604     QMimeData* mimeData = new QMimeData();
 605     const KUrl::List kdeUrls = selectedUrls();
 606     const KUrl::List mostLocalUrls;
 607     KonqMimeData::populateMimeData(mimeData, kdeUrls, mostLocalUrls, true);
 608     QApplication::clipboard()->setMimeData(mimeData);
 609 }
 610
 611 void DolphinView::copySelectedItems()
 612 {
 613     QMimeData* mimeData = new QMimeData();
 614     const KUrl::List kdeUrls = selectedUrls();
 615     const KUrl::List mostLocalUrls;
 616     KonqMimeData::populateMimeData(mimeData, kdeUrls, mostLocalUrls, false);
 617     QApplication::clipboard()->setMimeData(mimeData);
 618 }
 619
 620 void DolphinView::paste()
 621 {
 622     pasteToUrl(url());
 623 }
 624
 625 void DolphinView::pasteIntoFolder()
 626 {
 627     const KFileItemList items = selectedItems();
 628     if ((items.count() == 1) && items.first().isDir()) {
 629         pasteToUrl(items.first().url());
 630     }
 631 }
 632
 633 void DolphinView::setShowPreview(bool show)
 634 {
 635     if (m_showPreview == show) {
 636         return;
 637     }
 638
 639     const KUrl viewPropsUrl = viewPropertiesUrl();
 640     ViewProperties props(viewPropsUrl);
 641     props.setShowPreview(show);
 642
 643     m_showPreview = show;
 644     m_iconManager->setShowPreview(show);
 645     emit showPreviewChanged();
 646
 647     loadDirectory(viewPropsUrl);
 648 }
 649
 650 void DolphinView::setShowHiddenFiles(bool show)
 651 {
 652     if (m_dirLister->showingDotFiles() == show) {
 653         return;
 654     }
 655
 656     const KUrl viewPropsUrl = viewPropertiesUrl();
 657     ViewProperties props(viewPropsUrl);
 658     props.setShowHiddenFiles(show);
 659
 660     m_dirLister->setShowingDotFiles(show);
 661     emit showHiddenFilesChanged();
 662
 663     loadDirectory(viewPropsUrl);
 664 }
 665
 666 void DolphinView::setCategorizedSorting(bool categorized)
 667 {
 668     if (categorized == categorizedSorting()) {
 669         return;
 670     }
 671
 672     // setCategorizedSorting(true) may only get invoked
 673     // if the view supports categorized sorting
 674     Q_ASSERT(!categorized || supportsCategorizedSorting());
 675
 676     ViewProperties props(viewPropertiesUrl());
 677     props.setCategorizedSorting(categorized);
 678     props.save();
 679
 680     m_storedCategorizedSorting = categorized;
 681     m_proxyModel->setCategorizedModel(categorized);
 682
 683     emit categorizedSortingChanged();
 684 }
 685
 686 void DolphinView::toggleSortOrder()
 687 {
 688     const Qt::SortOrder order = (sortOrder() == Qt::AscendingOrder) ?
 689                                 Qt::DescendingOrder :
 690                                 Qt::AscendingOrder;
 691     setSortOrder(order);
 692 }
 693
 694 void DolphinView::toggleAdditionalInfo(QAction* action)
 695 {
 696     const KFileItemDelegate::Information info =
 697         static_cast<KFileItemDelegate::Information>(action->data().toInt());
 698
 699     KFileItemDelegate::InformationList list = additionalInfo();
 700
 701     const bool show = action->isChecked();
 702
 703     const int index = list.indexOf(info);
 704     const bool containsInfo = (index >= 0);
 705     if (show && !containsInfo) {
 706         list.append(info);
 707         setAdditionalInfo(list);
 708     } else if (!show && containsInfo) {
 709         list.removeAt(index);
 710         setAdditionalInfo(list);
 711         Q_ASSERT(list.indexOf(info) < 0);
 712     }
 713 }
 714
 715
 716 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 717 {
 718     QWidget::mouseReleaseEvent(event);
 719     setActive(true);
 720 }
 721
 722 void DolphinView::wheelEvent(QWheelEvent* event)
 723 {
 724     if (event->modifiers() & Qt::ControlModifier) {
 725         const int delta = event->delta();
 726         if ((delta > 0) && isZoomInPossible()) {
 727             zoomIn();
 728         } else if ((delta < 0) && isZoomOutPossible()) {
 729             zoomOut();
 730         }
 731         event->accept();
 732     }
 733 }
 734
 735 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 736 {
 737     if ((watched == itemView()) && (event->type() == QEvent::FocusIn)) {
 738         m_controller->requestActivation();
 739     }
 740
 741     return QWidget::eventFilter(watched, event);
 742 }
 743
 744 void DolphinView::activate()
 745 {
 746     setActive(true);
 747 }
 748
 749 void DolphinView::triggerItem(const KFileItem& item)
 750 {
 751     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 752     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 753         // items are selected by the user, hence don't trigger the
 754         // item specified by 'index'
 755         return;
 756     }
 757
 758     // TODO: the m_isContextMenuOpen check is a workaround for Qt-issue 207192
 759     if (item.isNull() || m_isContextMenuOpen) {
 760         return;
 761     }
 762
 763     if (m_toolTipManager != 0) {
 764         m_toolTipManager->hideTip();
 765     }
 766     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 767 }
 768
 769 void DolphinView::emitSelectionChangedSignal()
 770 {
 771     emit selectionChanged(DolphinView::selectedItems());
 772 }
 773
 774 void DolphinView::openContextMenu(const QPoint& pos)
 775 {
 776     KFileItem item;
 777
 778     const QModelIndex index = itemView()->indexAt(pos);
 779     if (index.isValid() && (index.column() == DolphinModel::Name)) {
 780         item = fileItem(index);
 781     }
 782
 783     if (m_toolTipManager != 0) {
 784         m_toolTipManager->hideTip();
 785     }
 786
 787     m_isContextMenuOpen = true; // TODO: workaround for Qt-issue 207192
 788     emit requestContextMenu(item, url());
 789     m_isContextMenuOpen = false;
 790 }
 791
 792 void DolphinView::dropUrls(const KUrl::List& urls,
 793                            const KUrl& destPath,
 794                            const KFileItem& destItem)
 795 {
 796     Q_ASSERT(!urls.isEmpty());
 797     const KUrl& destination = !destItem.isNull() && destItem.isDir() ?
 798                               destItem.url() : destPath;
 799     const KUrl sourceDir = KUrl(urls.first().directory());
 800     if (sourceDir != destination) {
 801         dropUrls(urls, destination);
 802     }
 803 }
 804
 805 void DolphinView::dropUrls(const KUrl::List& urls,
 806                            const KUrl& destination)
 807 {
 808     DolphinDropController dropController(this);
 809     // forward doingOperation signal up to the mainwindow
 810     connect(&dropController, SIGNAL(doingOperation(KIO::FileUndoManager::CommandType)),
 811             this, SIGNAL(doingOperation(KIO::FileUndoManager::CommandType)));
 812     dropController.dropUrls(urls, destination);
 813 }
 814
 815 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 816 {
 817     ViewProperties props(viewPropertiesUrl());
 818     props.setSorting(sorting);
 819
 820     m_proxyModel->setSorting(sorting);
 821
 822     emit sortingChanged(sorting);
 823 }
 824
 825 void DolphinView::updateSortOrder(Qt::SortOrder order)
 826 {
 827     ViewProperties props(viewPropertiesUrl());
 828     props.setSortOrder(order);
 829
 830     m_proxyModel->setSortOrder(order);
 831
 832     emit sortOrderChanged(order);
 833 }
 834
 835 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 836 {
 837     ViewProperties props(viewPropertiesUrl());
 838     props.setAdditionalInfo(info);
 839     props.save();
 840
 841     m_fileItemDelegate->setShowInformation(info);
 842
 843     emit additionalInfoChanged();
 844 }
 845
 846 void DolphinView::updateAdditionalInfoActions(KActionCollection* collection)
 847 {
 848     const bool enable = (m_mode == DolphinView::DetailsView) ||
 849                         (m_mode == DolphinView::IconsView);
 850
 851     QAction* showSizeInfo = collection->action("show_size_info");
 852     QAction* showDateInfo = collection->action("show_date_info");
 853     QAction* showPermissionsInfo = collection->action("show_permissions_info");
 854     QAction* showOwnerInfo = collection->action("show_owner_info");
 855     QAction* showGroupInfo = collection->action("show_group_info");
 856     QAction* showMimeInfo = collection->action("show_mime_info");
 857
 858     showSizeInfo->setChecked(false);
 859     showDateInfo->setChecked(false);
 860     showPermissionsInfo->setChecked(false);
 861     showOwnerInfo->setChecked(false);
 862     showGroupInfo->setChecked(false);
 863     showMimeInfo->setChecked(false);
 864
 865     showSizeInfo->setEnabled(enable);
 866     showDateInfo->setEnabled(enable);
 867     showPermissionsInfo->setEnabled(enable);
 868     showOwnerInfo->setEnabled(enable);
 869     showGroupInfo->setEnabled(enable);
 870     showMimeInfo->setEnabled(enable);
 871
 872     foreach (KFileItemDelegate::Information info, m_fileItemDelegate->showInformation()) {
 873         switch (info) {
 874         case KFileItemDelegate::Size:
 875             showSizeInfo->setChecked(true);
 876             break;
 877         case KFileItemDelegate::ModificationTime:
 878             showDateInfo->setChecked(true);
 879             break;
 880         case KFileItemDelegate::Permissions:
 881             showPermissionsInfo->setChecked(true);
 882             break;
 883         case KFileItemDelegate::Owner:
 884             showOwnerInfo->setChecked(true);
 885             break;
 886         case KFileItemDelegate::OwnerAndGroup:
 887             showGroupInfo->setChecked(true);
 888             break;
 889         case KFileItemDelegate::FriendlyMimeType:
 890             showMimeInfo->setChecked(true);
 891             break;
 892         default:
 893             break;
 894         }
 895     }
 896 }
 897
 898 QPair<bool, QString> DolphinView::pasteInfo() const
 899 {
 900     QPair<bool, QString> ret;
 901     QClipboard* clipboard = QApplication::clipboard();
 902     const QMimeData* mimeData = clipboard->mimeData();
 903
 904     KUrl::List urls = KUrl::List::fromMimeData(mimeData);
 905     if (!urls.isEmpty()) {
 906         ret.first = true;
 907         if (urls.count() == 1) {
 908             const KFileItem item(KFileItem::Unknown, KFileItem::Unknown, urls.first(), true);
 909             ret.second = item.isDir() ? i18nc("@action:inmenu", "Paste One Folder") :
 910                                         i18nc("@action:inmenu", "Paste One File");
 911
 912         } else {
 913             ret.second = i18ncp("@action:inmenu", "Paste One Item", "Paste %1 Items", urls.count());
 914         }
 915     } else {
 916         ret.first = false;
 917         ret.second = i18nc("@action:inmenu", "Paste");
 918     }
 919
 920     return ret;
 921 }
 922
 923 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
 924 {
 925     m_tabsForFiles = tabsForFiles;
 926 }
 927
 928 bool DolphinView::isTabsForFilesEnabled() const
 929 {
 930     return m_tabsForFiles;
 931 }
 932
 933 void DolphinView::emitContentsMoved()
 934 {
 935     // only emit the contents moved signal if:
 936     // - no directory loading is ongoing (this would reset the contents position
 937     //   always to (0, 0))
 938     // - if the Column View is active: the column view does an automatic
 939     //   positioning during the loading operation, which must be remembered
 940     if (!m_loadingDirectory || isColumnViewActive()) {
 941         const QPoint pos(contentsPosition());
 942         emit contentsMoved(pos.x(), pos.y());
 943     }
 944 }
 945
 946 void DolphinView::showHoverInformation(const KFileItem& item)
 947 {
 948     emit requestItemInfo(item);
 949 }
 950
 951 void DolphinView::clearHoverInformation()
 952 {
 953     emit requestItemInfo(KFileItem());
 954 }
 955
 956 void DolphinView::slotDeleteFileFinished(KJob* job)
 957 {
 958     if (job->error() == 0) {
 959         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
 960     } else {
 961         emit errorMessage(job->errorString());
 962     }
 963 }
 964
 965
 966 void DolphinView::restoreCurrentItem()
 967 {
 968     const QModelIndex dirIndex = m_dolphinModel->indexForUrl(m_currentItemUrl);
 969     if (dirIndex.isValid()) {
 970         const QModelIndex proxyIndex = m_proxyModel->mapFromSource(dirIndex);
 971         QAbstractItemView* view = itemView();
 972         const bool clearSelection = !hasSelection();
 973         view->setCurrentIndex(proxyIndex);
 974         if (clearSelection) {
 975             view->clearSelection();
 976         }
 977     }
 978 }
 979
 980 void DolphinView::loadDirectory(const KUrl& url, bool reload)
 981 {
 982     if (!url.isValid()) {
 983         const QString location(url.pathOrUrl());
 984         if (location.isEmpty()) {
 985             emit errorMessage(i18nc("@info:status", "The location is empty."));
 986         } else {
 987             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
 988         }
 989         return;
 990     }
 991
 992     m_loadingDirectory = true;
 993
 994     m_dirLister->stop();
 995     m_dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
 996
 997     if (isColumnViewActive()) {
 998         // adjusting the directory lister is not enough in the case of the
 999         // column view, as each column has its own directory lister internally...
1000         if (reload) {
1001             m_columnView->reload();
1002         } else {
1003             m_columnView->showColumn(url);
1004         }
1005     }
1006 }
1007
1008 KUrl DolphinView::viewPropertiesUrl() const
1009 {
1010     if (isColumnViewActive()) {
1011         return m_columnView->rootUrl();
1012     }
1013
1014     return url();
1015 }
1016
1017 void DolphinView::applyViewProperties(const KUrl& url)
1018 {
1019     if (isColumnViewActive() && rootUrl().isParentOf(url)) {
1020         // The column view is active, hence don't apply the view properties
1021         // of sub directories (represented by columns) to the view. The
1022         // view always represents the properties of the first column.
1023         return;
1024     }
1025
1026     const ViewProperties props(url);
1027
1028     const Mode mode = props.viewMode();
1029     if (m_mode != mode) {
1030         m_mode = mode;
1031         createView();
1032         emit modeChanged();
1033     }
1034     if (itemView() == 0) {
1035         createView();
1036     }
1037     Q_ASSERT(itemView() != 0);
1038     Q_ASSERT(m_fileItemDelegate != 0);
1039
1040     const bool showHiddenFiles = props.showHiddenFiles();
1041     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
1042         m_dirLister->setShowingDotFiles(showHiddenFiles);
1043         emit showHiddenFilesChanged();
1044     }
1045
1046     m_storedCategorizedSorting = props.categorizedSorting();
1047     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1048     if (categorized != m_proxyModel->isCategorizedModel()) {
1049         m_proxyModel->setCategorizedModel(categorized);
1050         emit categorizedSortingChanged();
1051     }
1052
1053     const DolphinView::Sorting sorting = props.sorting();
1054     if (sorting != m_proxyModel->sorting()) {
1055         m_proxyModel->setSorting(sorting);
1056         emit sortingChanged(sorting);
1057     }
1058
1059     const Qt::SortOrder sortOrder = props.sortOrder();
1060     if (sortOrder != m_proxyModel->sortOrder()) {
1061         m_proxyModel->setSortOrder(sortOrder);
1062         emit sortOrderChanged(sortOrder);
1063     }
1064
1065     KFileItemDelegate::InformationList info = props.additionalInfo();
1066     if (info != m_fileItemDelegate->showInformation()) {
1067         m_fileItemDelegate->setShowInformation(info);
1068         emit additionalInfoChanged();
1069     }
1070
1071     const bool showPreview = props.showPreview();
1072     if (showPreview != m_showPreview) {
1073         m_showPreview = showPreview;
1074         m_iconManager->setShowPreview(showPreview);
1075         emit showPreviewChanged();
1076     }
1077 }
1078
1079 void DolphinView::createView()
1080 {
1081     deleteView();
1082     Q_ASSERT(m_iconsView == 0);
1083     Q_ASSERT(m_detailsView == 0);
1084     Q_ASSERT(m_columnView == 0);
1085
1086     QAbstractItemView* view = 0;
1087     switch (m_mode) {
1088     case IconsView: {
1089         m_iconsView = new DolphinIconsView(this, m_controller);
1090         view = m_iconsView;
1091         break;
1092     }
1093
1094     case DetailsView:
1095         m_detailsView = new DolphinDetailsView(this, m_controller);
1096         view = m_detailsView;
1097         break;
1098
1099     case ColumnView:
1100         m_columnView = new DolphinColumnView(this, m_controller);
1101         view = m_columnView;
1102         break;
1103     }
1104
1105     Q_ASSERT(view != 0);
1106     view->installEventFilter(this);
1107
1108     m_controller->setItemView(view);
1109
1110     m_fileItemDelegate = new KFileItemDelegate(view);
1111     view->setItemDelegate(m_fileItemDelegate);
1112
1113     view->setModel(m_proxyModel);
1114     if (m_selectionModel != 0) {
1115         view->setSelectionModel(m_selectionModel);
1116     } else {
1117         m_selectionModel = view->selectionModel();
1118     }
1119
1120     // reparent the selection model, as it should not be deleted
1121     // when deleting the model
1122     m_selectionModel->setParent(this);
1123
1124     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
1125
1126     new KMimeTypeResolver(view, m_dolphinModel);
1127     m_iconManager = new IconManager(view, m_proxyModel);
1128     m_iconManager->setShowPreview(m_showPreview);
1129
1130     if (DolphinSettings::instance().generalSettings()->showToolTips()) {
1131         m_toolTipManager = new ToolTipManager(view, m_proxyModel);
1132     }
1133
1134     m_topLayout->insertWidget(1, view);
1135
1136     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
1137             this, SLOT(emitSelectionChangedSignal()));
1138     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
1139             this, SLOT(emitContentsMoved()));
1140     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
1141             this, SLOT(emitContentsMoved()));
1142 }
1143
1144 void DolphinView::deleteView()
1145 {
1146     QAbstractItemView* view = itemView();
1147     if (view != 0) {
1148         m_topLayout->removeWidget(view);
1149         view->close();
1150         view->deleteLater();
1151         view = 0;
1152         m_iconsView = 0;
1153         m_detailsView = 0;
1154         m_columnView = 0;
1155         m_fileItemDelegate = 0;
1156         m_iconManager = 0;
1157         m_toolTipManager = 0;
1158     }
1159 }
1160
1161 QAbstractItemView* DolphinView::itemView() const
1162 {
1163     if (m_detailsView != 0) {
1164         return m_detailsView;
1165     } else if (m_columnView != 0) {
1166         return m_columnView;
1167     }
1168
1169     return m_iconsView;
1170 }
1171
1172 bool DolphinView::isCutItem(const KFileItem& item) const
1173 {
1174     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
1175     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
1176
1177     const KUrl& itemUrl = item.url();
1178     KUrl::List::const_iterator it = cutUrls.begin();
1179     const KUrl::List::const_iterator end = cutUrls.end();
1180     while (it != end) {
1181         if (*it == itemUrl) {
1182             return true;
1183         }
1184         ++it;
1185     }
1186
1187     return false;
1188 }
1189
1190 void DolphinView::pasteToUrl(const KUrl& url)
1191 {
1192     QClipboard* clipboard = QApplication::clipboard();
1193     const QMimeData* mimeData = clipboard->mimeData();
1194
1195     const KUrl::List sourceUrls = KUrl::List::fromMimeData(mimeData);
1196     if (KonqMimeData::decodeIsCutSelection(mimeData)) {
1197         KonqOperations::copy(this, KonqOperations::MOVE, sourceUrls, url);
1198         emit doingOperation(KIO::FileUndoManager::Move);
1199         clipboard->clear();
1200     } else {
1201         KonqOperations::copy(this, KonqOperations::COPY, sourceUrls, url);
1202         emit doingOperation(KIO::FileUndoManager::Copy);
1203     }
1204 }
1205
1206 #include "dolphinview.moc"