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articleview.cc
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articleview.cc
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/* This file is (c) 2008-2012 Konstantin Isakov <ikm@goldendict.org>
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#include "articleview.hh"
#include <map>
#include <QMessageBox>
#include <QWebHitTestResult>
#include <QMenu>
#include <QDesktopServices>
#include <QWebHistory>
#include <QClipboard>
#include <QKeyEvent>
#include <QFileDialog>
#include "folding.hh"
#include "wstring_qt.hh"
#include "webmultimediadownload.hh"
#include "programs.hh"
#include "gddebug.hh"
#include <QDebug>
#include <QCryptographicHash>
#include "gestures.hh"
#include "fulltextsearch.hh"
#if QT_VERSION >= 0x040600
#include <QWebElement>
#include <QWebElementCollection>
#endif
#if QT_VERSION >= QT_VERSION_CHECK( 5, 0, 0 )
#include <QRegularExpression>
#include "wildcard.hh"
#endif
#include "qt4x5.hh"
#include <assert.h>
#ifdef Q_OS_WIN32
#include <windows.h>
#include <QPainter>
#endif
#include <QBuffer>
#if defined( Q_OS_WIN32 ) || defined( Q_OS_MAC )
#include "speechclient.hh"
#endif
using std::map;
using std::list;
/// This class exposes only slim, minimal API to JavaScript clients in order to
/// reduce attack surface available to potentionally malicious external scripts.
class ArticleViewJsProxy: public QObject
{
Q_OBJECT
public:
/// Note: view becomes the parent of this proxy object.
explicit ArticleViewJsProxy( ArticleView & view ):
QObject( &view ), articleView( view )
{}
Q_INVOKABLE void onJsActiveArticleChanged( QString const & id )
{ articleView.onJsActiveArticleChanged( id ); }
private:
ArticleView & articleView;
};
/// AccentMarkHandler class
///
/// Remove accent marks from text
/// and mirror position in normalized text to original text
class AccentMarkHandler
{
protected:
QString normalizedString;
QVector< int > accentMarkPos;
public:
AccentMarkHandler()
{}
virtual ~AccentMarkHandler()
{}
static QChar accentMark()
{ return QChar( 0x301 ); }
/// Create text without accent marks
/// and store mark positions
virtual void setText( QString const & baseString )
{
accentMarkPos.clear();
normalizedString.clear();
int pos = 0;
QChar mark = accentMark();
for( int x = 0; x < baseString.length(); x++ )
{
if( baseString.at( x ) == mark )
{
accentMarkPos.append( pos );
continue;
}
normalizedString.append( baseString.at( x ) );
pos++;
}
}
/// Return text without accent marks
QString const & normalizedText() const
{ return normalizedString; }
/// Convert position into position in original text
int mirrorPosition( int const & pos ) const
{
int newPos = pos;
for( int x = 0; x < accentMarkPos.size(); x++ )
{
if( accentMarkPos.at( x ) < pos )
newPos++;
else
break;
}
return newPos;
}
};
/// End of DslAccentMark class
/// DiacriticsHandler class
///
/// Remove diacritics from text
/// and mirror position in normalized text to original text
class DiacriticsHandler : public AccentMarkHandler
{
public:
DiacriticsHandler()
{}
~DiacriticsHandler()
{}
/// Create text without diacriticss
/// and store diacritic marks positions
virtual void setText( QString const & baseString )
{
accentMarkPos.clear();
normalizedString.clear();
gd::wstring baseText = gd::toWString( baseString );
gd::wstring normText;
int pos = 0;
normText.reserve( baseText.size() );
gd::wchar const * nextChar = baseText.data();
size_t consumed;
for( size_t left = baseText.size(); left; )
{
if( *nextChar >= 0x10000 )
{
// Will be translated into surrogate pair
normText.push_back( *nextChar );
pos += 2;
nextChar++; left--;
continue;
}
gd::wchar ch = Folding::foldedDiacritic( nextChar, left, consumed );
if( Folding::isCombiningMark( ch ) )
{
accentMarkPos.append( pos );
nextChar++; left--;
continue;
}
if( consumed > 1 )
{
for( size_t i = 1; i < consumed; i++ )
accentMarkPos.append( pos );
}
normText.push_back( ch );
pos += 1;
nextChar += consumed;
left -= consumed;
}
normalizedString = gd::toQString( normText );
}
};
/// End of DiacriticsHandler class
static QVariant evaluateJavaScriptVariableSafe( QWebFrame * frame, const QString & variable )
{
return frame->evaluateJavaScript(
QString( "( typeof( %1 ) !== 'undefined' && %1 !== undefined ) ? %1 : null;" )
.arg( variable ) );
}
namespace {
char const * const scrollToPrefix = "gdfrom-";
bool isScrollTo( QString const & id )
{
return id.startsWith( scrollToPrefix );
}
QString dictionaryIdFromScrollTo( QString const & scrollTo )
{
Q_ASSERT( isScrollTo( scrollTo ) );
const int scrollToPrefixLength = 7;
return scrollTo.mid( scrollToPrefixLength );
}
QString searchStatusMessageNoMatches()
{
return ArticleView::tr( "Phrase not found" );
}
QString searchStatusMessage( int activeMatch, int matchCount )
{
Q_ASSERT( matchCount > 0 );
Q_ASSERT( activeMatch > 0 );
Q_ASSERT( activeMatch <= matchCount );
return ArticleView::tr( "%1 of %2 matches" ).arg( activeMatch ).arg( matchCount );
}
} // unnamed namespace
QString ArticleView::scrollToFromDictionaryId( QString const & dictionaryId )
{
Q_ASSERT( !isScrollTo( dictionaryId ) );
return scrollToPrefix + dictionaryId;
}
ArticleView::ArticleView( QWidget * parent, ArticleNetworkAccessManager & nm,
AudioPlayerPtr const & audioPlayer_,
std::vector< sptr< Dictionary::Class > > const & allDictionaries_,
Instances::Groups const & groups_, bool popupView_,
Config::Class const & cfg_,
QAction & openSearchAction_,
QAction * dictionaryBarToggled_,
GroupComboBox const * groupComboBox_ ):
QFrame( parent ),
articleNetMgr( nm ),
audioPlayer( audioPlayer_ ),
allDictionaries( allDictionaries_ ),
groups( groups_ ),
popupView( popupView_ ),
cfg( cfg_ ),
jsProxy( new ArticleViewJsProxy( *this ) ),
pasteAction( this ),
articleUpAction( this ),
articleDownAction( this ),
goBackAction( this ),
goForwardAction( this ),
selectCurrentArticleAction( this ),
copyAsTextAction( this ),
inspectAction( this ),
openSearchAction( openSearchAction_ ),
searchIsOpened( false ),
dictionaryBarToggled( dictionaryBarToggled_ ),
groupComboBox( groupComboBox_ ),
ftsSearchIsOpened( false ),
ftsSearchMatchCase( false ),
ftsPosition( 0 )
{
ui.setupUi( this );
ui.definition->setUp( const_cast< Config::Class * >( &cfg ) );
goBackAction.setShortcut( QKeySequence( "Alt+Left" ) );
ui.definition->addAction( &goBackAction );
connect( &goBackAction, SIGNAL( triggered() ),
this, SLOT( back() ) );
goForwardAction.setShortcut( QKeySequence( "Alt+Right" ) );
ui.definition->addAction( &goForwardAction );
connect( &goForwardAction, SIGNAL( triggered() ),
this, SLOT( forward() ) );
ui.definition->pageAction( QWebPage::Copy )->setShortcut( QKeySequence::Copy );
ui.definition->addAction( ui.definition->pageAction( QWebPage::Copy ) );
QAction * selectAll = ui.definition->pageAction( QWebPage::SelectAll );
selectAll->setShortcut( QKeySequence::SelectAll );
selectAll->setShortcutContext( Qt::WidgetWithChildrenShortcut );
ui.definition->addAction( selectAll );
ui.definition->setContextMenuPolicy( Qt::CustomContextMenu );
ui.definition->page()->setLinkDelegationPolicy( QWebPage::DelegateAllLinks );
ui.definition->page()->setNetworkAccessManager( &articleNetMgr );
connect( ui.definition, SIGNAL( loadFinished( bool ) ),
this, SLOT( loadFinished( bool ) ) );
attachToJavaScript();
connect( ui.definition->page()->mainFrame(), SIGNAL( javaScriptWindowObjectCleared() ),
this, SLOT( attachToJavaScript() ) );
connect( ui.definition, SIGNAL( titleChanged( QString const & ) ),
this, SLOT( handleTitleChanged( QString const & ) ) );
connect( ui.definition, SIGNAL( urlChanged( QUrl const & ) ),
this, SLOT( handleUrlChanged( QUrl const & ) ) );
connect( ui.definition, SIGNAL( customContextMenuRequested( QPoint const & ) ),
this, SLOT( contextMenuRequested( QPoint const & ) ) );
connect( ui.definition, SIGNAL( linkClicked( QUrl const & ) ),
this, SLOT( linkClicked( QUrl const & ) ) );
connect( ui.definition->page(), SIGNAL( linkHovered ( const QString &, const QString &, const QString & ) ),
this, SLOT( linkHovered ( const QString &, const QString &, const QString & ) ) );
connect( ui.definition, SIGNAL( doubleClicked( QPoint ) ),this,SLOT( doubleClicked( QPoint ) ) );
pasteAction.setShortcut( QKeySequence::Paste );
ui.definition->addAction( &pasteAction );
connect( &pasteAction, SIGNAL( triggered() ), this, SLOT( pasteTriggered() ) );
articleUpAction.setShortcut( QKeySequence( "Alt+Up" ) );
ui.definition->addAction( &articleUpAction );
connect( &articleUpAction, SIGNAL( triggered() ), this, SLOT( moveOneArticleUp() ) );
articleDownAction.setShortcut( QKeySequence( "Alt+Down" ) );
ui.definition->addAction( &articleDownAction );
connect( &articleDownAction, SIGNAL( triggered() ), this, SLOT( moveOneArticleDown() ) );
ui.definition->addAction( &openSearchAction );
connect( &openSearchAction, SIGNAL( triggered() ), this, SLOT( openSearch() ) );
selectCurrentArticleAction.setShortcut( QKeySequence( "Ctrl+Shift+A" ));
selectCurrentArticleAction.setText( tr( "Select Current Article" ) );
ui.definition->addAction( &selectCurrentArticleAction );
connect( &selectCurrentArticleAction, SIGNAL( triggered() ),
this, SLOT( selectCurrentArticle() ) );
copyAsTextAction.setShortcut( QKeySequence( "Ctrl+Shift+C" ) );
copyAsTextAction.setText( tr( "Copy as text" ) );
ui.definition->addAction( ©AsTextAction );
connect( ©AsTextAction, SIGNAL( triggered() ),
this, SLOT( copyAsText() ) );
inspectAction.setShortcut( QKeySequence( Qt::Key_F12 ) );
inspectAction.setText( tr( "Inspect" ) );
ui.definition->addAction( &inspectAction );
connect( &inspectAction, SIGNAL( triggered() ), this, SLOT( inspect() ) );
ui.definition->installEventFilter( this );
ui.searchFrame->installEventFilter( this );
ui.ftsSearchFrame->installEventFilter( this );
QWebSettings * settings = ui.definition->page()->settings();
settings->setAttribute( QWebSettings::LocalContentCanAccessRemoteUrls, true );
settings->setAttribute( QWebSettings::LocalContentCanAccessFileUrls, true );
// Load the default blank page instantly, so there would be no flicker.
QString contentType;
QUrl blankPage( "gdlookup://localhost?blank=1" );
sptr< Dictionary::DataRequest > r = articleNetMgr.getResource( blankPage,
contentType );
ui.definition->setHtml( QString::fromUtf8( &( r->getFullData().front() ),
r->getFullData().size() ),
blankPage );
expandOptionalParts = cfg.preferences.alwaysExpandOptionalParts;
#if QT_VERSION >= QT_VERSION_CHECK(4, 6, 0)
ui.definition->grabGesture( Gestures::GDPinchGestureType );
ui.definition->grabGesture( Gestures::GDSwipeGestureType );
#endif
// Variable name for store current selection range
rangeVarName = QString( "sr_%1" ).arg( QString::number( (quint64)this, 16 ) );
}
// explicitly report the minimum size, to avoid
// sidebar widgets' improper resize during restore
QSize ArticleView::minimumSizeHint() const
{
return ui.searchFrame->minimumSizeHint();
}
void ArticleView::setGroupComboBox( GroupComboBox const * g )
{
groupComboBox = g;
}
ArticleView::~ArticleView()
{
cleanupTemp();
audioPlayer->stop();
#if QT_VERSION >= QT_VERSION_CHECK(4, 6, 0)
ui.definition->ungrabGesture( Gestures::GDPinchGestureType );
ui.definition->ungrabGesture( Gestures::GDSwipeGestureType );
#endif
}
void ArticleView::showDefinition( Config::InputPhrase const & phrase, unsigned group,
QString const & scrollTo,
Contexts const & contexts_ )
{
// first, let's stop the player
audioPlayer->stop();
QUrl req;
Contexts contexts( contexts_ );
req.setScheme( "gdlookup" );
req.setHost( "localhost" );
Qt4x5::Url::addQueryItem( req, "word", phrase.phrase );
if ( !phrase.punctuationSuffix.isEmpty() )
Qt4x5::Url::addQueryItem( req, "punctuation_suffix", phrase.punctuationSuffix );
Qt4x5::Url::addQueryItem( req, "group", QString::number( group ) );
if( cfg.preferences.ignoreDiacritics )
Qt4x5::Url::addQueryItem( req, "ignore_diacritics", "1" );
if ( scrollTo.size() )
Qt4x5::Url::addQueryItem( req, "scrollto", scrollTo );
Contexts::Iterator pos = contexts.find( "gdanchor" );
if( pos != contexts.end() )
{
Qt4x5::Url::addQueryItem( req, "gdanchor", contexts[ "gdanchor" ] );
contexts.erase( pos );
}
if ( contexts.size() )
{
QBuffer buf;
buf.open( QIODevice::WriteOnly );
QDataStream stream( &buf );
stream << contexts;
buf.close();
Qt4x5::Url::addQueryItem( req, "contexts", QString::fromLatin1( buf.buffer().toBase64() ) );
}
QString mutedDicts = getMutedForGroup( group );
if ( mutedDicts.size() )
Qt4x5::Url::addQueryItem( req, "muted", mutedDicts );
// Update headwords history
emit sendWordToHistory( phrase.phrase );
// Any search opened is probably irrelevant now
closeSearch();
// Clear highlight all button selection
ui.highlightAllButton->setChecked(false);
emit setExpandMode( expandOptionalParts );
load( req );
//QApplication::setOverrideCursor( Qt::WaitCursor );
ui.definition->setCursor( Qt::WaitCursor );
}
void ArticleView::showDefinition( QString const & word, unsigned group,
QString const & scrollTo,
Contexts const & contexts_ )
{
showDefinition( Config::InputPhrase::fromPhrase( word ), group, scrollTo, contexts_ );
}
void ArticleView::showDefinition( QString const & word, QStringList const & dictIDs,
QRegExp const & searchRegExp, unsigned group,
bool ignoreDiacritics )
{
if( dictIDs.isEmpty() )
return;
// first, let's stop the player
audioPlayer->stop();
QUrl req;
req.setScheme( "gdlookup" );
req.setHost( "localhost" );
Qt4x5::Url::addQueryItem( req, "word", word );
Qt4x5::Url::addQueryItem( req, "dictionaries", dictIDs.join( ",") );
Qt4x5::Url::addQueryItem( req, "regexp", searchRegExp.pattern() );
if( searchRegExp.caseSensitivity() == Qt::CaseSensitive )
Qt4x5::Url::addQueryItem( req, "matchcase", "1" );
if( searchRegExp.patternSyntax() == QRegExp::WildcardUnix )
Qt4x5::Url::addQueryItem( req, "wildcards", "1" );
Qt4x5::Url::addQueryItem( req, "group", QString::number( group ) );
if( ignoreDiacritics )
Qt4x5::Url::addQueryItem( req, "ignore_diacritics", "1" );
// Update headwords history
emit sendWordToHistory( word );
// Any search opened is probably irrelevant now
closeSearch();
// Clear highlight all button selection
ui.highlightAllButton->setChecked(false);
emit setExpandMode( expandOptionalParts );
load( req );
//QApplication::setOverrideCursor( Qt::WaitCursor );
ui.definition->setCursor( Qt::WaitCursor );
}
void ArticleView::showAnticipation()
{
ui.definition->setHtml( "" );
ui.definition->setCursor( Qt::WaitCursor );
//QApplication::setOverrideCursor( Qt::WaitCursor );
}
void ArticleView::loadFinished( bool )
{
QUrl url = ui.definition->url();
// See if we have any iframes in need of expansion
QList< QWebFrame * > frames = ui.definition->page()->mainFrame()->childFrames();
bool wereFrames = false;
for( QList< QWebFrame * >::iterator i = frames.begin(); i != frames.end(); ++i )
{
if ( (*i)->frameName().startsWith( "gdexpandframe-" ) )
{
//DPRINTF( "Name: %s\n", (*i)->frameName().toUtf8().data() );
//DPRINTF( "Size: %d\n", (*i)->contentsSize().height() );
//DPRINTF( ">>>>>>>>Height = %s\n", (*i)->evaluateJavaScript( "document.body.offsetHeight;" ).toString().toUtf8().data() );
// Set the height
ui.definition->page()->mainFrame()->evaluateJavaScript( QString( "document.getElementById('%1').height = %2;" ).
arg( (*i)->frameName() ).
arg( (*i)->contentsSize().height() ) );
// Show it
ui.definition->page()->mainFrame()->evaluateJavaScript( QString( "document.getElementById('%1').style.display = 'block';" ).
arg( (*i)->frameName() ) );
(*i)->evaluateJavaScript( "var gdLastUrlText;" );
(*i)->evaluateJavaScript( "document.addEventListener( 'click', function() { gdLastUrlText = window.event.srcElement.textContent; }, true );" );
(*i)->evaluateJavaScript( "document.addEventListener( 'contextmenu', function() { gdLastUrlText = window.event.srcElement.textContent; }, true );" );
wereFrames = true;
}
}
if ( wereFrames )
{
// There's some sort of glitch -- sometimes you need to move a mouse
QMouseEvent ev( QEvent::MouseMove, QPoint(), Qt::MouseButton(), Qt::MouseButtons(), Qt::KeyboardModifiers() );
qApp->sendEvent( ui.definition, &ev );
}
// Expand collapsed article if only one loaded
ui.definition->page()->mainFrame()->evaluateJavaScript( "gdCheckArticlesNumber();" );
QVariant userDataVariant = ui.definition->history()->currentItem().userData();
if ( userDataVariant.type() == QVariant::Map )
{
QMap< QString, QVariant > userData = userDataVariant.toMap();
double sx = 0, sy = 0;
bool moveToCurrentArticle = true;
if ( userData.value( "sx" ).type() == QVariant::Double )
{
sx = userData.value( "sx" ).toDouble();
moveToCurrentArticle = false;
}
if ( userData.value( "sy" ).type() == QVariant::Double )
{
sy = userData.value( "sy" ).toDouble();
moveToCurrentArticle = false;
}
const QString currentArticle = userData.value( "currentArticle" ).toString();
if( !currentArticle.isEmpty() )
{
// There's a current article saved, so set it to be current.
// If a scroll position was stored - even (0, 0) - don't move to the
// current article.
setCurrentArticle( currentArticle, moveToCurrentArticle );
}
if ( sx != 0 || sy != 0 )
{
// Restore scroll position if at least one non-zero coordinate was stored.
// Moving to (0, 0) is a no-op, so don't restore it.
ui.definition->page()->mainFrame()->evaluateJavaScript(
QString( "window.scroll( %1, %2 );" ).arg( sx ).arg( sy ) );
}
}
else
{
QString const scrollTo = Qt4x5::Url::queryItemValue( url, "scrollto" );
if( isScrollTo( scrollTo ) )
{
// There is no active article saved in history, but we have it as a parameter.
// setCurrentArticle will save it and scroll there.
setCurrentArticle( scrollTo, true );
}
}
ui.definition->unsetCursor();
//QApplication::restoreOverrideCursor();
#if QT_VERSION >= QT_VERSION_CHECK(4, 6, 0)
if( !Qt4x5::Url::queryItemValue( url, "gdanchor" ).isEmpty() )
{
QString anchor = QUrl::fromPercentEncoding( Qt4x5::Url::encodedQueryItemValue( url, "gdanchor" ) );
// Find GD anchor on page
int n = anchor.indexOf( '_' );
if( n == 33 )
// MDict pattern: ("g" + dictionary ID (33 chars total))_(articleID(quint64, hex))_(original anchor)
n = anchor.indexOf( '_', n + 1 );
else
n = 0;
if( n > 0 )
{
QString originalAnchor = anchor.mid( n + 1 );
QRegExp rx;
rx.setMinimal( true );
rx.setPattern( anchor.left( 34 ) + "[0-9a-f]*_" + originalAnchor );
QWebElementCollection coll = ui.definition->page()->mainFrame()->findAllElements( "a[name]" );
coll += ui.definition->page()->mainFrame()->findAllElements( "a[id]" );
for( QWebElementCollection::iterator it = coll.begin(); it != coll.end(); ++it )
{
QString name = (*it).attribute( "name" );
QString id = (*it).attribute( "id" );
if( ( !name.isEmpty() && rx.indexIn( name ) >= 0 )
|| ( !id.isEmpty() && rx.indexIn( id ) >= 0 ))
{
// Anchor found, jump to it
url.clear();
url.setFragment( rx.cap( 0 ) );
ui.definition->page()->mainFrame()->evaluateJavaScript(
QString( "window.location.hash = \"%1\"" ).arg( QString::fromUtf8( url.toEncoded() ) ) );
break;
}
}
}
else
{
url.clear();
url.setFragment( anchor );
ui.definition->page()->mainFrame()->evaluateJavaScript(
QString( "window.location.hash = \"%1\"" ).arg( QString::fromUtf8( url.toEncoded() ) ) );
}
}
#endif
emit pageLoaded( this );
if( Qt4x5::Url::hasQueryItem( ui.definition->url(), "regexp" ) )
highlightFTSResults();
}
void ArticleView::handleTitleChanged( QString const & title )
{
if( !title.isEmpty() ) // Qt 5.x WebKit raise signal titleChanges(QString()) while navigation within page
emit titleChanged( this, title );
}
void ArticleView::handleUrlChanged( QUrl const & url )
{
QIcon icon;
unsigned group = getGroup( url );
if ( group )
{
// Find the group's instance corresponding to the fragment value
for( unsigned x = 0; x < groups.size(); ++x )
if ( groups[ x ].id == group )
{
// Found it
icon = groups[ x ].makeIcon();
break;
}
}
emit iconChanged( this, icon );
}
unsigned ArticleView::getGroup( QUrl const & url )
{
if ( url.scheme() == "gdlookup" && Qt4x5::Url::hasQueryItem( url, "group" ) )
return Qt4x5::Url::queryItemValue( url, "group" ).toUInt();
return 0;
}
QStringList ArticleView::getArticlesList()
{
return evaluateJavaScriptVariableSafe( ui.definition->page()->mainFrame(), "gdArticleContents" )
.toString().trimmed().split( ' ', Qt4x5::skipEmptyParts() );
}
QString ArticleView::getActiveArticleId()
{
QString currentArticle = getCurrentArticle();
if ( !isScrollTo( currentArticle ) )
return QString(); // Incorrect id
return dictionaryIdFromScrollTo( currentArticle );
}
QString ArticleView::getCurrentArticle()
{
QVariant v = evaluateJavaScriptVariableSafe( ui.definition->page()->mainFrame(), "gdCurrentArticle" );
if ( v.type() == QVariant::String )
return v.toString();
else
return QString();
}
void ArticleView::jumpToDictionary( QString const & id, bool force )
{
QString targetArticle = scrollToFromDictionaryId( id );
// jump only if neceessary, or when forced
if ( force || targetArticle != getCurrentArticle() )
{
setCurrentArticle( targetArticle, true );
}
}
bool ArticleView::setCurrentArticle( QString const & id, bool moveToIt )
{
if ( !isScrollTo( id ) )
return false; // Incorrect id
if ( !ui.definition->isVisible() )
return false; // No action on background page, scrollIntoView there don't work
QString const dictionaryId = dictionaryIdFromScrollTo( id );
if( !getArticlesList().contains( dictionaryId ) )
return false;
if ( moveToIt )
ui.definition->page()->mainFrame()->evaluateJavaScript( QString( "document.getElementById('%1').scrollIntoView(true);" ).arg( id ) );
ui.definition->page()->mainFrame()->evaluateJavaScript(
QString( "gdMakeArticleActive( '%1' );" ).arg( dictionaryId ) );
return true;
}
void ArticleView::selectCurrentArticle()
{
ui.definition->page()->mainFrame()->evaluateJavaScript(
QString( "gdSelectArticle( '%1' );" ).arg( getActiveArticleId() ) );
}
bool ArticleView::isFramedArticle( QString const & ca )
{
if ( ca.isEmpty() )
return false;
return ui.definition->page()->mainFrame()->
evaluateJavaScript( QString( "!!document.getElementById('gdexpandframe-%1');" )
.arg( dictionaryIdFromScrollTo( ca ) ) ).toBool();
}
bool ArticleView::isExternalLink( QUrl const & url )
{
return url.scheme() == "http" || url.scheme() == "https" ||
url.scheme() == "ftp" || url.scheme() == "mailto" ||
url.scheme() == "file";
}
void ArticleView::tryMangleWebsiteClickedUrl( QUrl & url, Contexts & contexts )
{
// Don't try mangling audio urls, even if they are from the framed websites
if( ( url.scheme() == "http" || url.scheme() == "https" )
&& ! Dictionary::WebMultimediaDownload::isAudioUrl( url ) )
{
// Maybe a link inside a website was clicked?
QString ca = getCurrentArticle();
if ( isFramedArticle( ca ) )
{
QVariant result = evaluateJavaScriptVariableSafe( ui.definition->page()->currentFrame(), "gdLastUrlText" );
if ( result.type() == QVariant::String )
{
// Looks this way
contexts[ dictionaryIdFromScrollTo( ca ) ] = QString::fromLatin1( url.toEncoded() );
QUrl target;
QString queryWord = result.toString();
// Empty requests are treated as no request, so we work this around by
// adding a space.
if ( queryWord.isEmpty() )
queryWord = " ";
target.setScheme( "gdlookup" );
target.setHost( "localhost" );
target.setPath( "/" + queryWord );
url = target;
}
}
}
}
void ArticleView::updateCurrentArticleFromCurrentFrame( QWebFrame * frame )
{
if ( !frame )
frame = ui.definition->page()->currentFrame();
for( ; frame; frame = frame->parentFrame() )
{
QString frameName = frame->frameName();
if ( frameName.startsWith( "gdexpandframe-" ) )
{
QString newCurrent = scrollToFromDictionaryId( frameName.mid( 14 ) );
if ( getCurrentArticle() != newCurrent )
setCurrentArticle( newCurrent, false );
break;
}
}
}
void ArticleView::saveHistoryUserData()
{
QMap< QString, QVariant > userData = ui.definition->history()->
currentItem().userData().toMap();
// Save current article, which can be empty
userData[ "currentArticle" ] = getCurrentArticle();
// We also save window position. We restore it when the page is fully loaded,
// when any hidden frames are expanded.
userData[ "sx" ] = ui.definition->page()->mainFrame()->evaluateJavaScript( "window.scrollX;" ).toDouble();
userData[ "sy" ] = ui.definition->page()->mainFrame()->evaluateJavaScript( "window.scrollY;" ).toDouble();
ui.definition->history()->currentItem().setUserData( userData );
}
void ArticleView::load( QUrl const & url )
{
saveHistoryUserData();
ui.definition->load( url );
}
void ArticleView::cleanupTemp()
{
QSet< QString >::iterator it = desktopOpenedTempFiles.begin();
while( it != desktopOpenedTempFiles.end() )
{
if( QFile::remove( *it ) )
it = desktopOpenedTempFiles.erase( it );
else
++it;
}
}
bool ArticleView::handleF3( QObject * /*obj*/, QEvent * ev )
{
if ( ev->type() == QEvent::ShortcutOverride
|| ev->type() == QEvent::KeyPress )
{
QKeyEvent * ke = static_cast<QKeyEvent *>( ev );
if ( ke->key() == Qt::Key_F3 && isSearchOpened() ) {
if ( !ke->modifiers() )
{
if( ev->type() == QEvent::KeyPress )
on_searchNext_clicked();
ev->accept();
return true;
}
if ( ke->modifiers() == Qt::ShiftModifier )
{
if( ev->type() == QEvent::KeyPress )
on_searchPrevious_clicked();
ev->accept();
return true;
}
}
if ( ke->key() == Qt::Key_F3 && ftsSearchIsOpened )
{
if ( !ke->modifiers() )
{
if( ev->type() == QEvent::KeyPress )
on_ftsSearchNext_clicked();
ev->accept();
return true;
}
if ( ke->modifiers() == Qt::ShiftModifier )
{
if( ev->type() == QEvent::KeyPress )
on_ftsSearchPrevious_clicked();
ev->accept();
return true;
}
}
}
return false;
}
bool ArticleView::eventFilter( QObject * obj, QEvent * ev )
{
#if QT_VERSION >= QT_VERSION_CHECK(4, 6, 0)
if( ev->type() == QEvent::Gesture )
{
Gestures::GestureResult result;
QPoint pt;
bool handled = Gestures::handleGestureEvent( obj, ev, result, pt );
if( handled )
{
if( result == Gestures::ZOOM_IN )
zoomIn();
else
if( result == Gestures::ZOOM_OUT )
zoomOut();
else
if( result == Gestures::SWIPE_LEFT )
back();
else
if( result == Gestures::SWIPE_RIGHT )
forward();
else
if( result == Gestures::SWIPE_UP || result == Gestures::SWIPE_DOWN )
{
int delta = result == Gestures::SWIPE_UP ? -120 : 120;
QWidget *widget = static_cast< QWidget * >( obj );
QWidget *child = widget->childAt( widget->mapFromGlobal( pt ) );
if( child )
widget = child;
#if QT_VERSION >= QT_VERSION_CHECK( 5, 12, 0 )
QWheelEvent whev( widget->mapFromGlobal( pt ), pt, QPoint(), QPoint( 0, delta ),
Qt::NoButton, Qt::NoModifier, Qt::NoScrollPhase, false );
#else
QWheelEvent whev( widget->mapFromGlobal( pt ), pt, delta, Qt::NoButton, Qt::NoModifier );
#endif
qApp->sendEvent( widget, &whev );
}
}
return handled;
}
if( ev->type() == QEvent::MouseMove )
{
if( Gestures::isFewTouchPointsPresented() )