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goldendict-ng/articleview.cc
Tvangeste 0cf8ccb259 DSL: Support video resources
2013-06-22 18:36:25 +02:00

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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 "externalviewer.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 "dprintf.hh"
#include "ffmpegaudio.hh"
#include <QDebug>
#include <QWebElement>
#include <QCryptographicHash>
#include <assert.h>
#ifdef Q_OS_WIN32
#include <windows.h>
#include <QPainter>
#endif
#include <QBuffer>
#if defined( Q_OS_WIN32 ) || defined( Q_OS_MACX )
#include "speechclient.hh"
#endif
using std::map;
using std::list;
static QVariant evaluateJavaScriptVariableSafe( QWebFrame * frame, const QString & variable )
{
return frame->evaluateJavaScript(
QString( "( typeof( %1 ) !== 'undefined' && %1 !== undefined ) ? %1 : null;" )
.arg( variable ) );
}
ArticleView::ArticleView( QWidget * parent, ArticleNetworkAccessManager & nm,
std::vector< sptr< Dictionary::Class > > const & allDictionaries_,
Instances::Groups const & groups_, bool popupView_,
Config::Class const & cfg_,
QAction * dictionaryBarToggled_,
GroupComboBox const * groupComboBox_ ):
QFrame( parent ),
articleNetMgr( nm ),
allDictionaries( allDictionaries_ ),
groups( groups_ ),
popupView( popupView_ ),
cfg( cfg_ ),
pasteAction( this ),
articleUpAction( this ),
articleDownAction( this ),
goBackAction( this ),
goForwardAction( this ),
openSearchAction( this ),
selectCurrentArticleAction( this ),
copyAsTextAction( this ),
inspectAction( this ),
searchIsOpened( false ),
dictionaryBarToggled( dictionaryBarToggled_ ),
groupComboBox( groupComboBox_ )
{
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()),this,SLOT(doubleClicked()) );
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() ) );
openSearchAction.setShortcut( QKeySequence( "Ctrl+F" ) );
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( &copyAsTextAction );
connect( &copyAsTextAction, 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 );
// 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;
}
// 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();
}
void ArticleView::showDefinition( QString const & word, unsigned group,
QString const & scrollTo,
Contexts const & contexts )
{
QUrl req;
req.setScheme( "gdlookup" );
req.setHost( "localhost" );
req.addQueryItem( "word", word );
req.addQueryItem( "group", QString::number( group ) );
if ( scrollTo.size() )
req.addQueryItem( "scrollto", scrollTo );
if ( contexts.size() )
{
QBuffer buf;
buf.open( QIODevice::WriteOnly );
QDataStream stream( &buf );
stream << contexts;
buf.close();
req.addQueryItem( "contexts", QString::fromLatin1( buf.buffer().toBase64() ) );
}
QString mutedDicts = getMutedForGroup( group );
if ( mutedDicts.size() )
req.addQueryItem( "muted", mutedDicts );
// Update both histories (pages history and headwords history)
saveHistoryUserData();
emit sendWordToHistory( word );
// Any search opened is probably irrelevant now
closeSearch();
// Clear highlight all button selection
ui.highlightAllButton->setChecked(false);
emit setExpandMode( expandOptionalParts );
ui.definition->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(), 0, 0 );
qApp->sendEvent( ui.definition, &ev );
}
QVariant userDataVariant = ui.definition->history()->currentItem().userData();
if ( userDataVariant.type() == QVariant::Map )
{
QMap< QString, QVariant > userData = userDataVariant.toMap();
QString currentArticle = userData.value( "currentArticle" ).toString();
if ( currentArticle.size() )
{
// There's an active article saved, so set it to be active.
setCurrentArticle( currentArticle );
}
double sx = 0, sy = 0;
if ( userData.value( "sx" ).type() == QVariant::Double )
sx = userData.value( "sx" ).toDouble();
if ( userData.value( "sy" ).type() == QVariant::Double )
sy = userData.value( "sy" ).toDouble();
if ( sx != 0 || sy != 0 )
{
// Restore scroll position
ui.definition->page()->mainFrame()->evaluateJavaScript(
QString( "window.scroll( %1, %2 );" ).arg( sx ).arg( sy ) );
}
}
else
if ( url.queryItemValue( "scrollto" ).startsWith( "gdfrom-" ) )
{
// There is no active article saved in history, but we have it as a parameter.
// setCurrentArticle will save it and scroll there.
setCurrentArticle( url.queryItemValue( "scrollto" ), true );
}
ui.definition->unsetCursor();
//QApplication::restoreOverrideCursor();
// Expand collapsed article if only one loaded
ui.definition->page()->mainFrame()->evaluateJavaScript( QString( "gdCheckArticlesNumber();" ) );
// Jump to current article after page reloading
if( !articleToJump.isEmpty() )
{
setCurrentArticle( articleToJump, true );
articleToJump.clear();
}
emit pageLoaded( this );
}
void ArticleView::handleTitleChanged( QString const & title )
{
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" && url.hasQueryItem( "group" ) )
return url.queryItemValue( "group" ).toUInt();
return 0;
}
QStringList ArticleView::getArticlesList()
{
return evaluateJavaScriptVariableSafe( ui.definition->page()->mainFrame(), "gdArticleContents" )
.toString().trimmed().split( ' ', QString::SkipEmptyParts );
}
QString ArticleView::getActiveArticleId()
{
QString currentArticle = getCurrentArticle();
if ( !currentArticle.startsWith( "gdfrom-" ) )
return QString(); // Incorrect id
return currentArticle.mid( 7 );
}
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 )
{
QString targetArticle = "gdfrom-" + id;
// jump only if neceessary
if ( targetArticle != getCurrentArticle() )
{
setCurrentArticle( targetArticle, true );
}
}
void ArticleView::setCurrentArticle( QString const & id, bool moveToIt )
{
if ( !id.startsWith( "gdfrom-" ) )
return; // Incorrect id
if ( getArticlesList().contains( id.mid( 7 ) ) )
{
if ( moveToIt )
ui.definition->page()->mainFrame()->evaluateJavaScript( QString( "document.getElementById('%1').scrollIntoView(true);" ).arg( id ) );
QMap< QString, QVariant > userData = ui.definition->history()->
currentItem().userData().toMap();
userData[ "currentArticle" ] = id;
ui.definition->history()->currentItem().setUserData( userData );
ui.definition->page()->mainFrame()->evaluateJavaScript(
QString( "gdMakeArticleActive( '%1' );" ).arg( id.mid( 7 ) ) );
}
}
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( ca.mid( 7 ) ) ).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[ ca.mid( 7 ) ] = 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 = "gdfrom-" + 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::cleanupTemp()
{
if ( desktopOpenedTempFile.size() )
{
QFile( desktopOpenedTempFile ).remove();
desktopOpenedTempFile.clear();
}
}
bool ArticleView::handleF3( QObject * /*obj*/, QEvent * ev )
{
if ( ev->type() == QEvent::ShortcutOverride ) {
QKeyEvent * ke = static_cast<QKeyEvent *>( ev );
if ( ke->key() == Qt::Key_F3 && isSearchOpened() ) {
if ( !ke->modifiers() )
{
on_searchNext_clicked();
ev->accept();
return true;
}
if ( ke->modifiers() == Qt::ShiftModifier )
{
on_searchPrevious_clicked();
ev->accept();
return true;
}
}
}
return false;
}
bool ArticleView::eventFilter( QObject * obj, QEvent * ev )
{
if ( handleF3( obj, ev ) )
{
return true;
}
if ( obj == ui.definition )
{
if ( ev->type() == QEvent::MouseButtonPress ) {
QMouseEvent * event = static_cast< QMouseEvent * >( ev );
if ( event->button() == Qt::XButton1 ) {
back();
return true;
}
if ( event->button() == Qt::XButton2 ) {
forward();
return true;
}
}
else
if ( ev->type() == QEvent::KeyPress )
{
QKeyEvent * keyEvent = static_cast< QKeyEvent * >( ev );
if ( keyEvent->modifiers() &
( Qt::ControlModifier | Qt::AltModifier | Qt::MetaModifier ) )
return false; // A non-typing modifier is pressed
if ( keyEvent->key() == Qt::Key_Space ||
keyEvent->key() == Qt::Key_Backspace ||
keyEvent->key() == Qt::Key_Tab ||
keyEvent->key() == Qt::Key_Backtab )
return false; // Those key have other uses than to start typing
QString text = keyEvent->text();
if ( text.size() )
{
emit typingEvent( text );
return true;
}
}
}
else
return QFrame::eventFilter( obj, ev );
return false;
}
QString ArticleView::getMutedForGroup( unsigned group )
{
if ( dictionaryBarToggled && dictionaryBarToggled->isChecked() )
{
// Dictionary bar is active -- mute the muted dictionaries
Instances::Group const * groupInstance = groups.findGroup( group );
// Find muted dictionaries for current group
Config::Group const * grp = cfg.getGroup( group );
Config::MutedDictionaries const * mutedDictionaries;
if( group == Instances::Group::AllGroupId )
mutedDictionaries = popupView ? &cfg.popupMutedDictionaries : &cfg.mutedDictionaries;
else
mutedDictionaries = grp ? ( popupView ? &grp->popupMutedDictionaries : &grp->mutedDictionaries ) : 0;
if( !mutedDictionaries )
return QString();
QStringList mutedDicts;
if ( groupInstance )
{
for( unsigned x = 0; x < groupInstance->dictionaries.size(); ++x )
{
QString id = QString::fromStdString(
groupInstance->dictionaries[ x ]->getId() );
if ( mutedDictionaries->contains( id ) )
mutedDicts.append( id );
}
}
if ( mutedDicts.size() )
return mutedDicts.join( "," );
}
return QString();
}
void ArticleView::linkHovered ( const QString & link, const QString & , const QString & )
{
QString msg;
QUrl url(link);
if ( url.scheme() == "bres" )
{
msg = tr( "Resource" );
}
else
if ( url.scheme() == "gdau" || Dictionary::WebMultimediaDownload::isAudioUrl( url ) )
{
msg = tr( "Audio" );
}
else
if ( url.scheme() == "gdtts" )
{
msg = tr( "TTS Voice" );
}
else
if ( url.scheme() == "gdpicture" )
{
msg = tr( "Picture" );
}
else
if ( url.scheme() == "gdvideo" )
{
if ( url.path().isEmpty() )
{
msg = tr( "Video" );
}
else
{
QString path = url.path();
if ( path.startsWith( '/' ) )
{
path = path.mid( 1 );
}
msg = tr( "Video: %1" ).arg( path );
}
}
else
if (url.scheme() == "gdlookup" || url.scheme().compare( "bword" ) == 0)
{
QString def = url.path();
if (def.startsWith("/"))
{
def = def.mid( 1 );
}
if( url.hasQueryItem( "dict" ) )
{
// Link to other dictionary
QString dictName( url.queryItemValue( "dict" ) );
if( !dictName.isEmpty() )
msg = tr( "Definition from dictionary \"%1\": %2" ).arg( dictName ).arg( def );
}
if( msg.isEmpty() )
msg = tr( "Definition: %1").arg( def );
}
else
{
msg = link;
}
emit statusBarMessage( msg );
}
void ArticleView::attachToJavaScript()
{
ui.definition->page()->mainFrame()->addToJavaScriptWindowObject( QString( "articleview" ), this );
}
void ArticleView::linkClicked( QUrl const & url_ )
{
updateCurrentArticleFromCurrentFrame();
QUrl url( url_ );
Contexts contexts;
tryMangleWebsiteClickedUrl( url, contexts );
Qt::KeyboardModifiers kmod = QApplication::keyboardModifiers();
if ( !popupView &&
( ui.definition->isMidButtonPressed() ||
( kmod & ( Qt::ControlModifier | Qt::ShiftModifier ) ) ) )
{
// Mid button or Control/Shift is currently pressed - open the link in new tab
emit openLinkInNewTab( url, ui.definition->url(), getCurrentArticle(), contexts );
}
else
openLink( url, ui.definition->url(), getCurrentArticle(), contexts );
}
void ArticleView::openLink( QUrl const & url, QUrl const & ref,
QString const & scrollTo,
Contexts const & contexts )
{
qDebug() << "clicked" << url;
if( url.scheme().compare( "gdpicture" ) == 0 )
ui.definition->load( url );
else
if ( url.scheme().compare( "bword" ) == 0 )
{
showDefinition( url.path(),
getGroup( ref ), scrollTo, contexts );
}
else
if ( url.scheme() == "gdlookup" ) // Plain html links inherit gdlookup scheme
{
if ( url.hasFragment() )
{
ui.definition->page()->mainFrame()->evaluateJavaScript(
QString( "window.location = \"%1\"" ).arg( QString::fromUtf8( url.toEncoded() ) ) );
}
else
{
QString newScrollTo( scrollTo );
if( url.hasQueryItem( "dict" ) )
{
// Link to other dictionary
QString dictName( url.queryItemValue( "dict" ) );
for( unsigned i = 0; i < allDictionaries.size(); i++ )
{
if( dictName.compare( QString::fromUtf8( allDictionaries[ i ]->getName().c_str() ) ) == 0 )
{
newScrollTo = QString( "gdfrom-" ) + QString::fromUtf8( allDictionaries[ i ]->getId().c_str() );
break;
}
}
}
showDefinition( url.path().mid( 1 ),
getGroup( ref ), newScrollTo, contexts );
}
}
else
if ( url.scheme() == "bres" || url.scheme() == "gdau" || url.scheme() == "gdvideo" ||
Dictionary::WebMultimediaDownload::isAudioUrl( url ) )
{
// Download it
// Clear any pending ones
resourceDownloadRequests.clear();
resourceDownloadUrl = url;
if ( Dictionary::WebMultimediaDownload::isAudioUrl( url ) )
{
sptr< Dictionary::DataRequest > req =
new Dictionary::WebMultimediaDownload( url, articleNetMgr );
resourceDownloadRequests.push_back( req );
connect( req.get(), SIGNAL( finished() ),
this, SLOT( resourceDownloadFinished() ) );
}
else
if ( url.scheme() == "gdau" && url.host() == "search" )
{
// Since searches should be limited to current group, we just do them
// here ourselves since otherwise we'd need to pass group id to netmgr
// and it should've been having knowledge of the current groups, too.
unsigned currentGroup = getGroup( ref );
std::vector< sptr< Dictionary::Class > > const * activeDicts = 0;
if ( groups.size() )
{
for( unsigned x = 0; x < groups.size(); ++x )
if ( groups[ x ].id == currentGroup )
{
activeDicts = &( groups[ x ].dictionaries );
break;
}
}
else
activeDicts = &allDictionaries;
if ( activeDicts )
for( unsigned x = 0; x < activeDicts->size(); ++x )
{
sptr< Dictionary::DataRequest > req =
(*activeDicts)[ x ]->getResource(
url.path().mid( 1 ).toUtf8().data() );
if ( req->isFinished() && req->dataSize() >= 0 )
{
// A request was instantly finished with success.
// If we've managed to spawn some lingering requests already,
// erase them.
resourceDownloadRequests.clear();
// Handle the result
resourceDownloadRequests.push_back( req );
resourceDownloadFinished();
return;
}
else
if ( !req->isFinished() )
{
resourceDownloadRequests.push_back( req );
connect( req.get(), SIGNAL( finished() ),
this, SLOT( resourceDownloadFinished() ) );
}
}
}
else
{
// Normal resource download
QString contentType;
sptr< Dictionary::DataRequest > req =
articleNetMgr.getResource( url, contentType );
if ( !req.get() )
{
// Request failed, fail
}
else
if ( req->isFinished() && req->dataSize() >= 0 )
{
// Have data ready, handle it
resourceDownloadRequests.push_back( req );
resourceDownloadFinished();
return;
}
else
if ( !req->isFinished() )
{
// Queue to be handled when done
resourceDownloadRequests.push_back( req );
connect( req.get(), SIGNAL( finished() ),
this, SLOT( resourceDownloadFinished() ) );
}
}
if ( resourceDownloadRequests.empty() ) // No requests were queued
{
QMessageBox::critical( this, "GoldenDict", tr( "The referenced resource doesn't exist." ) );
return;
}
else
resourceDownloadFinished(); // Check any requests finished already
}
else
if ( url.scheme() == "gdprg" )
{
// Program. Run it.
QString id( url.host() );
for( Config::Programs::const_iterator i = cfg.programs.begin();
i != cfg.programs.end(); ++i )
{
if ( i->id == id )
{
// Found the corresponding program.
Programs::RunInstance * req = new Programs::RunInstance;
connect( req, SIGNAL(finished(QByteArray,QString)),
req, SLOT( deleteLater() ) );
QString error;
// Delete the request if it fails to start
if ( !req->start( *i, url.path().mid( 1 ), error ) )
{
delete req;
QMessageBox::critical( this, "GoldenDict",
error );
}
return;
}
}
// Still here? No such program exists.
QMessageBox::critical( this, "GoldenDict",
tr( "The referenced audio program doesn't exist." ) );
}
else
if ( url.scheme() == "gdtts" )
{
// TODO: Port TTS
#if defined( Q_OS_WIN32 ) || defined( Q_OS_MACX )
// Text to speech
QString md5Id = url.queryItemValue( "engine" );
QString text( url.path().mid( 1 ) );
for ( Config::VoiceEngines::const_iterator i = cfg.voiceEngines.begin();
i != cfg.voiceEngines.end(); ++i )
{
QString itemMd5Id = QString( QCryptographicHash::hash(
i->id.toUtf8(),
QCryptographicHash::Md5 ).toHex() );
if ( itemMd5Id == md5Id )
{
SpeechClient * speechClient = new SpeechClient( *i, this );
connect( speechClient, SIGNAL( finished() ), speechClient, SLOT( deleteLater() ) );
speechClient->tell( text );
break;
}
}
#endif
}
else
if ( isExternalLink( url ) )
{
// Use the system handler for the conventional external links
QDesktopServices::openUrl( url );
}
}
vector< ResourceToSaveHandler * > ArticleView::saveResource( const QUrl & url, const QString & fileName )
{
return saveResource( url, ui.definition->url(), fileName );
}
vector< ResourceToSaveHandler * > ArticleView::saveResource( const QUrl & url, const QUrl & ref, const QString & fileName )
{
vector< ResourceToSaveHandler * > handlers;
sptr< Dictionary::DataRequest > req;
if( url.scheme() == "bres" || url.scheme() == "gico" || url.scheme() == "gdau")
{
if ( url.host() == "search" )
{
// Since searches should be limited to current group, we just do them
// here ourselves since otherwise we'd need to pass group id to netmgr
// and it should've been having knowledge of the current groups, too.
unsigned currentGroup = getGroup( ref );
std::vector< sptr< Dictionary::Class > > const * activeDicts = 0;
if ( groups.size() )
{
for( unsigned x = 0; x < groups.size(); ++x )
if ( groups[ x ].id == currentGroup )
{
activeDicts = &( groups[ x ].dictionaries );
break;
}
}
else
activeDicts = &allDictionaries;
if ( activeDicts )
{
for( unsigned x = 0; x < activeDicts->size(); ++x )
{
req = (*activeDicts)[ x ]->getResource(
url.path().mid( 1 ).toUtf8().data() );
ResourceToSaveHandler * handler = new ResourceToSaveHandler( this, req, fileName );
handlers.push_back( handler );
}
}
}
else
{
// Normal resource download
QString contentType;
req = articleNetMgr.getResource( url, contentType );
ResourceToSaveHandler * handler = new ResourceToSaveHandler( this, req, fileName );
handlers.push_back( handler );
}
}
else
{
req = new Dictionary::WebMultimediaDownload( url, articleNetMgr );
ResourceToSaveHandler * handler = new ResourceToSaveHandler( this, req, fileName );
handlers.push_back( handler );
}
if ( handlers.empty() ) // No requests were queued
{
emit statusBarMessage(
tr( "ERROR: %1" ).arg( tr( "The referenced resource doesn't exist." ) ),
10000, QPixmap( ":/icons/error.png" ) );
}
return handlers;
}
void ArticleView::updateMutedContents()
{
QUrl currentUrl = ui.definition->url();
if ( currentUrl.scheme() != "gdlookup" )
return; // Weird url -- do nothing
unsigned group = getGroup( currentUrl );
if ( !group )
return; // No group in url -- do nothing
QString mutedDicts = getMutedForGroup( group );
if ( currentUrl.queryItemValue( "muted" ) != mutedDicts )
{
// The list has changed -- update the url
currentUrl.removeQueryItem( "muted" );
if ( mutedDicts.size() )
currentUrl.addQueryItem( "muted", mutedDicts );
saveHistoryUserData();
ui.definition->load( currentUrl );
//QApplication::setOverrideCursor( Qt::WaitCursor );
ui.definition->setCursor( Qt::WaitCursor );
}
}
bool ArticleView::canGoBack()
{
// First entry in a history is always an empty page,
// so we skip it.
return ui.definition->history()->currentItemIndex() > 1;
}
bool ArticleView::canGoForward()
{
return ui.definition->history()->canGoForward();
}
void ArticleView::setSelectionBySingleClick( bool set )
{
ui.definition->setSelectionBySingleClick( set );
}
void ArticleView::back()
{
// Don't allow navigating back to page 0, which is usually the initial
// empty page
if ( canGoBack() )
{
saveHistoryUserData();
ui.definition->back();
}
}
void ArticleView::forward()
{
saveHistoryUserData();
ui.definition->forward();
}
bool ArticleView::hasSound()
{
QVariant v = ui.definition->page()->mainFrame()->evaluateJavaScript( "gdAudioLinks.first" );
if ( v.type() == QVariant::String )
return !v.toString().isEmpty();
return false;
}
void ArticleView::playSound()
{
QVariant v;
QString soundScript;
v = ui.definition->page()->mainFrame()->evaluateJavaScript( "gdAudioLinks[gdAudioLinks.current]" );
if ( v.type() == QVariant::String )
soundScript = v.toString();
// fallback to the first one
if ( soundScript.isEmpty() )
{
v = ui.definition->page()->mainFrame()->evaluateJavaScript( "gdAudioLinks.first" );
if ( v.type() == QVariant::String )
soundScript = v.toString();
}
if ( !soundScript.isEmpty() )
openLink( QUrl::fromEncoded( soundScript.toUtf8() ), ui.definition->url() );
}
QString ArticleView::toHtml()
{
return ui.definition->page()->mainFrame()->toHtml();
}
QString ArticleView::getTitle()
{
return ui.definition->page()->mainFrame()->title();
}
void ArticleView::print( QPrinter * printer ) const
{
ui.definition->print( printer );
}
void ArticleView::contextMenuRequested( QPoint const & pos )
{
// Is that a link? Is there a selection?
QWebHitTestResult r = ui.definition->page()->mainFrame()->
hitTestContent( pos );
updateCurrentArticleFromCurrentFrame( r.frame() );
QMenu menu( this );
QAction * followLink = 0;
QAction * followLinkExternal = 0;
QAction * followLinkNewTab = 0;
QAction * lookupSelection = 0;
QAction * lookupSelectionGr = 0;
QAction * lookupSelectionNewTab = 0;
QAction * lookupSelectionNewTabGr = 0;
QAction * maxDictionaryRefsAction = 0;
QAction * addWordToHistoryAction = 0;
QAction * addHeaderToHistoryAction = 0;
QAction * sendWordToInputLineAction = 0;
QAction * saveImageAction = 0;
QAction * saveSoundAction = 0;
QUrl targetUrl( r.linkUrl() );
Contexts contexts;
tryMangleWebsiteClickedUrl( targetUrl, contexts );
if ( !r.linkUrl().isEmpty() )
{
if ( !isExternalLink( targetUrl ) )
{
followLink = new QAction( tr( "&Open Link" ), &menu );
menu.addAction( followLink );
if ( !popupView )
{
followLinkNewTab = new QAction( QIcon( ":/icons/addtab.png" ),
tr( "Open Link in New &Tab" ), &menu );
menu.addAction( followLinkNewTab );
}
}
if ( isExternalLink( r.linkUrl() ) )
{
followLinkExternal = new QAction( tr( "Open Link in &External Browser" ), &menu );
menu.addAction( followLinkExternal );
menu.addAction( ui.definition->pageAction( QWebPage::CopyLinkToClipboard ) );
}
}
QWebElement el = r.element();
QUrl imageUrl;
if( !popupView && el.tagName().compare( "img", Qt::CaseInsensitive ) == 0 )
{
imageUrl = QUrl::fromPercentEncoding( el.attribute( "src" ).toLatin1() );
if( !imageUrl.isEmpty() )
{
menu.addAction( ui.definition->pageAction( QWebPage::CopyImageToClipboard ) );
saveImageAction = new QAction( tr( "Save &image..." ), &menu );
menu.addAction( saveImageAction );
}
}
if( !popupView && ( targetUrl.scheme() == "gdau"
|| Dictionary::WebMultimediaDownload::isAudioUrl( targetUrl ) ) )
{
saveSoundAction = new QAction( tr( "Save s&ound..." ), &menu );
menu.addAction( saveSoundAction );
}
QString selectedText = ui.definition->selectedText();
if ( selectedText.size() && selectedText.size() < 60 )
{
// We don't prompt for selections larger or equal to 60 chars, since
// it ruins the menu and it's hardly a single word anyway.
lookupSelection = new QAction( tr( "&Look up \"%1\"" ).
arg( ui.definition->selectedText() ),
&menu );
menu.addAction( lookupSelection );
if ( !popupView )
{
lookupSelectionNewTab = new QAction( QIcon( ":/icons/addtab.png" ),
tr( "Look up \"%1\" in &New Tab" ).
arg( ui.definition->selectedText() ),
&menu );
menu.addAction( lookupSelectionNewTab );
sendWordToInputLineAction = new QAction( tr( "Send \"%1\" to input line" ).
arg( ui.definition->selectedText() ),
&menu );
menu.addAction( sendWordToInputLineAction );
}
addWordToHistoryAction = new QAction( tr( "&Add \"%1\" to history" ).
arg( ui.definition->selectedText() ),
&menu );
menu.addAction( addWordToHistoryAction );
Instances::Group const * altGroup =
( groupComboBox && groupComboBox->getCurrentGroup() != getGroup( ui.definition->url() ) ) ?
groups.findGroup( groupComboBox->getCurrentGroup() ) : 0;
if ( altGroup )
{
QIcon icon = altGroup->icon.size() ? QIcon( ":/flags/" + altGroup->icon ) :
QIcon();
lookupSelectionGr = new QAction( icon, tr( "Look up \"%1\" in %2" ).
arg( ui.definition->selectedText() ).
arg( altGroup->name ), &menu );
menu.addAction( lookupSelectionGr );
if ( !popupView )
{
lookupSelectionNewTabGr = new QAction( QIcon( ":/icons/addtab.png" ),
tr( "Look up \"%1\" in %2 in &New Tab" ).
arg( ui.definition->selectedText() ).
arg( altGroup->name ), &menu );
menu.addAction( lookupSelectionNewTabGr );
}
}
}
if( selectedText.isEmpty() && !cfg.preferences.storeHistory)
{
addHeaderToHistoryAction = new QAction( tr( "&Add \"%1\" to history" ).
arg( ui.definition->title() ),
&menu );
menu.addAction( addHeaderToHistoryAction );
}
if ( selectedText.size() )
{
menu.addAction( ui.definition->pageAction( QWebPage::Copy ) );
menu.addAction( &copyAsTextAction );
}
else
{
menu.addAction( &selectCurrentArticleAction );
menu.addAction( ui.definition->pageAction( QWebPage::SelectAll ) );
}
map< QAction *, QString > tableOfContents;
// Add table of contents
QStringList ids = getArticlesList();
if ( !menu.isEmpty() && ids.size() )
menu.addSeparator();
unsigned refsAdded = 0;
bool maxDictionaryRefsReached = false;
for( QStringList::const_iterator i = ids.constBegin(); i != ids.constEnd();
++i, ++refsAdded )
{
// Find this dictionary
for( unsigned x = allDictionaries.size(); x--; )
{
if ( allDictionaries[ x ]->getId() == i->toUtf8().data() )
{
QAction * action = 0;
if ( refsAdded == cfg.preferences.maxDictionaryRefsInContextMenu )
{
// Enough! Or the menu would become too large.
maxDictionaryRefsAction = new QAction( ".........", &menu );
action = maxDictionaryRefsAction;
maxDictionaryRefsReached = true;
}
else
{
action = new QAction(
allDictionaries[ x ]->getIcon(),
QString::fromUtf8( allDictionaries[ x ]->getName().c_str() ),
&menu );
// Force icons in menu on all platfroms,
// since without them it will be much harder
// to find things.
action->setIconVisibleInMenu( true );
}
menu.addAction( action );
tableOfContents[ action ] = *i;
break;
}
}
if( maxDictionaryRefsReached )
break;
}
menu.addSeparator();
menu.addAction( &inspectAction );
if ( !menu.isEmpty() )
{
connect( this, SIGNAL( closePopupMenu() ), &menu, SLOT( close() ) );
QAction * result = menu.exec( ui.definition->mapToGlobal( pos ) );
if ( !result )
return;
if ( result == followLink )
openLink( targetUrl, ui.definition->url(), getCurrentArticle(), contexts );
else
if ( result == followLinkExternal )
QDesktopServices::openUrl( r.linkUrl() );
else
if ( result == lookupSelection )
showDefinition( selectedText, getGroup( ui.definition->url() ), getCurrentArticle() );
else
if ( result == lookupSelectionGr && groupComboBox )
showDefinition( selectedText, groupComboBox->getCurrentGroup(), QString() );
else
if ( result == addWordToHistoryAction )
emit forceAddWordToHistory( selectedText );
if ( result == addHeaderToHistoryAction )
emit forceAddWordToHistory( ui.definition->title() );
else
if( result == sendWordToInputLineAction )
emit sendWordToInputLine( selectedText );
else
if ( !popupView && result == followLinkNewTab )
emit openLinkInNewTab( targetUrl, ui.definition->url(), getCurrentArticle(), contexts );
else
if ( !popupView && result == lookupSelectionNewTab )
emit showDefinitionInNewTab( selectedText, getGroup( ui.definition->url() ),
getCurrentArticle(), Contexts() );
else
if ( !popupView && result == lookupSelectionNewTabGr && groupComboBox )
emit showDefinitionInNewTab( selectedText, groupComboBox->getCurrentGroup(),
QString(), Contexts() );
else
if( result == saveImageAction || result == saveSoundAction )
{
QUrl url = ( result == saveImageAction ) ? imageUrl : targetUrl;
QString savePath;
QString fileName;
if ( cfg.resourceSavePath.isEmpty() )
savePath = QDir::homePath();
else
{
savePath = QDir::fromNativeSeparators( cfg.resourceSavePath );
if ( !QDir( savePath ).exists() )
savePath = QDir::homePath();
}
QString name = url.path().section( '/', -1 );
if ( result == saveSoundAction )
{
// Audio data
if ( name.indexOf( '.' ) < 0 )
name += ".wav";
fileName = savePath + "/" + name;
fileName = QFileDialog::getSaveFileName( parentWidget(), tr( "Save sound" ),
fileName,
tr( "Sound files (*.wav *.ogg *.mp3 *.mp4 *.aac *.flac *.mid *.wv *.ape);;All files (*.*)" ) );
}
else
{
// Image data
// Check for babylon image name
if ( name[ 0 ] == '\x1E' )
name.remove( 0, 1 );
if ( name.length() && name[ name.length() - 1 ] == '\x1F' )
name.chop( 1 );
fileName = savePath + "/" + name;
fileName = QFileDialog::getSaveFileName( parentWidget(), tr( "Save image" ),
fileName,
tr( "Image files (*.bmp *.jpg *.png *.tif);;All files (*.*)" ) );
}
if ( !fileName.isEmpty() )
{
QFileInfo fileInfo( fileName );
emit storeResourceSavePath( QDir::toNativeSeparators( fileInfo.absoluteDir().absolutePath() ) );
saveResource( url, ui.definition->url(), fileName );
}
}
else
{
if ( !popupView && result == maxDictionaryRefsAction )
emit showDictsPane();
// Match against table of contents
QString id = tableOfContents[ result ];
if ( id.size() )
setCurrentArticle( "gdfrom-" + id, true );
}
}
#if 0
DPRINTF( "%s\n", r.linkUrl().isEmpty() ? "null" : "not null" );
DPRINTF( "url = %s\n", r.linkUrl().toString().toLocal8Bit().data() );
DPRINTF( "title = %s\n", r.title().toLocal8Bit().data() );
#endif
}
void ArticleView::resourceDownloadFinished()
{
if ( resourceDownloadRequests.empty() )
return; // Stray signal
// Find any finished resources
for( list< sptr< Dictionary::DataRequest > >::iterator i =
resourceDownloadRequests.begin(); i != resourceDownloadRequests.end(); )
{
if ( (*i)->isFinished() )
{
if ( (*i)->dataSize() >= 0 )
{
// Ok, got one finished, all others are irrelevant now
vector< char > const & data = (*i)->getFullData();
if ( resourceDownloadUrl.scheme() == "gdau" ||
Dictionary::WebMultimediaDownload::isAudioUrl( resourceDownloadUrl ) )
{
// Audio data
#ifndef DISABLE_INTERNAL_PLAYER
if ( cfg.preferences.useInternalPlayer )
{
Ffmpeg::AudioPlayer & player = Ffmpeg::AudioPlayer::instance();
connect( &player, SIGNAL( error( QString ) ), this, SLOT( audioPlayerError( QString ) ), Qt::UniqueConnection );
player.playMemory( data.data(), data.size() );
}
else
#endif
{
// Use external viewer to play the file
try
{
ExternalViewer * viewer = new ExternalViewer( this, data, "wav", cfg.preferences.audioPlaybackProgram.trimmed() );
// Once started, it will erase itself
viewer->start();
}
catch( ExternalViewer::Ex & e )
{
QMessageBox::critical( this, "GoldenDict", tr( "Failed to run a player to play sound file: %1" ).arg( e.what() ) );
}
}
}
else
{
// Create a temporary file
// Remove the one previously used, if any
cleanupTemp();
{
QTemporaryFile tmp(
QDir::temp().filePath( "XXXXXX-" + resourceDownloadUrl.path().section( '/', -1 ) ), this );
if ( !tmp.open() || (size_t) tmp.write( &data.front(), data.size() ) != data.size() )
{
QMessageBox::critical( this, "GoldenDict", tr( "Failed to create temporary file." ) );
return;
}
tmp.setAutoRemove( false );
desktopOpenedTempFile = tmp.fileName();
}
if ( !QDesktopServices::openUrl( QUrl::fromLocalFile( desktopOpenedTempFile ) ) )
QMessageBox::critical( this, "GoldenDict",
tr( "Failed to auto-open resource file, try opening manually: %1." ).arg( desktopOpenedTempFile ) );
}
// Ok, whatever it was, it's finished. Remove this and any other
// requests and finish.
resourceDownloadRequests.clear();
return;
}
else
{
// This one had no data. Erase it.
resourceDownloadRequests.erase( i++ );
}
}
else // Unfinished, try the next one.
i++;
}
if ( resourceDownloadRequests.empty() )
{
emit statusBarMessage(
tr( "WARNING: %1" ).arg( tr( "The referenced resource failed to download." ) ),
10000, QPixmap( ":/icons/error.png" ) );
}
}
void ArticleView::audioPlayerError( QString const & message )
{
emit statusBarMessage( tr( "WARNING: FFmpeg Audio Player: %1" ).arg( message ),
10000, QPixmap( ":/icons/error.png" ) );
}
void ArticleView::pasteTriggered()
{
QString text =
gd::toQString(
Folding::trimWhitespaceOrPunct(
gd::toWString(
QApplication::clipboard()->text() ) ) );
if ( text.size() )
showDefinition( text, getGroup( ui.definition->url() ), getCurrentArticle() );
}
void ArticleView::moveOneArticleUp()
{
QString current = getCurrentArticle();
if ( current.size() )
{
QStringList lst = getArticlesList();
int idx = lst.indexOf( current.mid( 7 ) );
if ( idx != -1 )
{
--idx;
if ( idx < 0 )
idx = lst.size() - 1;
setCurrentArticle( "gdfrom-" + lst[ idx ], true );
}
}
}
void ArticleView::moveOneArticleDown()
{
QString current = getCurrentArticle();
if ( current.size() )
{
QStringList lst = getArticlesList();
int idx = lst.indexOf( current.mid( 7 ) );
if ( idx != -1 )
{
idx = ( idx + 1 ) % lst.size();
setCurrentArticle( "gdfrom-" + lst[ idx ], true );
}
}
}
void ArticleView::openSearch()
{
if ( !searchIsOpened )
{
ui.searchFrame->show();
ui.searchText->setText( getTitle() );
searchIsOpened = true;
}
ui.searchText->setFocus();
ui.searchText->selectAll();
// Clear any current selection
if ( ui.definition->selectedText().size() )
{
ui.definition->page()->currentFrame()->
evaluateJavaScript( "window.getSelection().removeAllRanges();" );
}
if ( ui.searchText->property( "noResults" ).toBool() )
{
ui.searchText->setProperty( "noResults", false );
// Reload stylesheet
reloadStyleSheet();
}
}
void ArticleView::on_searchPrevious_clicked()
{
if ( searchIsOpened )
performFindOperation( false, true );
}
void ArticleView::on_searchNext_clicked()
{
if ( searchIsOpened )
performFindOperation( false, false );
}
void ArticleView::on_searchText_textEdited()
{
performFindOperation( true, false );
}
void ArticleView::on_searchText_returnPressed()
{
on_searchNext_clicked();
}
void ArticleView::on_searchCloseButton_clicked()
{
closeSearch();
}
void ArticleView::on_searchCaseSensitive_clicked()
{
performFindOperation( false, false, true );
}
void ArticleView::on_highlightAllButton_clicked()
{
performFindOperation( false, false, true );
}
void ArticleView::onJsActiveArticleChanged(QString const & id)
{
if ( !id.startsWith( "gdfrom-" ) )
return; // Incorrect id
emit activeArticleChanged( id.mid( 7 ) );
}
void ArticleView::doubleClicked()
{
// We might want to initiate translation of the selected word
if ( cfg.preferences.doubleClickTranslates )
{
QString selectedText = ui.definition->selectedText();
// Do some checks to make sure there's a sensible selection indeed
if ( Folding::applyWhitespaceOnly( gd::toWString( selectedText ) ).size() &&
selectedText.size() < 60 )
{
// Initiate translation
Qt::KeyboardModifiers kmod = QApplication::keyboardModifiers();
if (kmod & (Qt::ControlModifier | Qt::ShiftModifier))
{ // open in new tab
emit showDefinitionInNewTab( selectedText, getGroup( ui.definition->url() ),
getCurrentArticle(), Contexts() );
}
else
showDefinition( selectedText, getGroup( ui.definition->url() ), getCurrentArticle() );
}
}
}
void ArticleView::performFindOperation( bool restart, bool backwards, bool checkHighlight )
{
QString text = ui.searchText->text();
if ( restart || checkHighlight )
{
if( restart ) {
// Anyone knows how we reset the search position?
// For now we resort to this hack:
if ( ui.definition->selectedText().size() )
{
ui.definition->page()->currentFrame()->
evaluateJavaScript( "window.getSelection().removeAllRanges();" );
}
}
QWebPage::FindFlags f( 0 );
if ( ui.searchCaseSensitive->isChecked() )
f |= QWebPage::FindCaseSensitively;
f |= QWebPage::HighlightAllOccurrences;
ui.definition->findText( "", f );
if( ui.highlightAllButton->isChecked() )
ui.definition->findText( text, f );
if( checkHighlight )
return;
}
QWebPage::FindFlags f( 0 );
if ( ui.searchCaseSensitive->isChecked() )
f |= QWebPage::FindCaseSensitively;
if ( backwards )
f |= QWebPage::FindBackward;
bool setMark = text.size() && !ui.definition->findText( text, f );
if ( ui.searchText->property( "noResults" ).toBool() != setMark )
{
ui.searchText->setProperty( "noResults", setMark );
// Reload stylesheet
reloadStyleSheet();
}
}
void ArticleView::reloadStyleSheet()
{
for( QWidget * w = parentWidget(); w; w = w->parentWidget() )
{
if ( w->styleSheet().size() )
{
w->setStyleSheet( w->styleSheet() );
break;
}
}
}
bool ArticleView::closeSearch()
{
if ( searchIsOpened )
{
ui.searchFrame->hide();
ui.definition->setFocus();
searchIsOpened = false;
return true;
}
else
return false;
}
bool ArticleView::isSearchOpened()
{
return searchIsOpened;
}
void ArticleView::showEvent( QShowEvent * ev )
{
QFrame::showEvent( ev );
if ( !searchIsOpened )
ui.searchFrame->hide();
}
void ArticleView::receiveExpandOptionalParts( bool expand )
{
if( expandOptionalParts != expand )
{
int n = getArticlesList().indexOf( getActiveArticleId() );
if( n > 0 )
articleToJump = getCurrentArticle();
emit setExpandMode( expand );
expandOptionalParts = expand;
reload();
}
}
void ArticleView::switchExpandOptionalParts()
{
expandOptionalParts = !expandOptionalParts;
int n = getArticlesList().indexOf( getActiveArticleId() );
if( n > 0 )
articleToJump = getCurrentArticle();
emit setExpandMode( expandOptionalParts );
reload();
}
void ArticleView::copyAsText()
{
QString text = ui.definition->selectedText();
if( !text.isEmpty() )
QApplication::clipboard()->setText( text );
}
void ArticleView::inspect()
{
ui.definition->triggerPageAction( QWebPage::InspectElement );
}
#ifdef Q_OS_WIN32
void ArticleView::readTag( const QString & from, QString & to, int & count )
{
QChar ch, prev_ch;
bool inQuote = false, inDoublequote = false;
to.append( ch = prev_ch = from[ count++ ] );
while( count < from.size() )
{
ch = from[ count ];
if( ch == '>' && !( inQuote || inDoublequote ) )
{
to.append( ch );
break;
}
if( ch == '\'' )
inQuote = !inQuote;
if( ch == '\"' )
inDoublequote = !inDoublequote;
to.append( prev_ch = ch );
count++;
}
}
QString ArticleView::insertSpans( QString const & html )
{
QChar ch;
QString newContent;
bool inSpan = false, escaped = false;
/// Enclose every word in string (exclude tags) with <span></span>
for( int i = 0; i < html.size(); i++ )
{
ch = html[ i ];
if( ch == '&' )
{
escaped = true;
if( inSpan )
{
newContent.append( "</span>" );
inSpan = false;
}
newContent.append( ch );
continue;
}
if( ch == '<' ) // Skip tag
{
escaped = false;
if( inSpan )
{
newContent.append( "</span>" );
inSpan = false;
}
readTag( html, newContent, i );
continue;
}
if( escaped )
{
if( ch == ';' )
escaped = false;
newContent.append( ch );
continue;
}
if( !inSpan && ( ch.isLetterOrNumber() || ch.isLowSurrogate() ) )
{
newContent.append( "<span>");
inSpan = true;
}
if( inSpan && !( ch.isLetterOrNumber() || ch.isLowSurrogate() ) )
{
newContent.append( "</span>");
inSpan = false;
}
if( ch.isLowSurrogate() )
{
newContent.append( ch );
ch = html[ ++i ];
}
newContent.append( ch );
if( ch == '-' && !( html[ i + 1 ] == ' ' || ( i > 0 && html[ i - 1 ] == ' ' ) ) )
newContent.append( "<span style=\"font-size:0pt\"> </span>" );
}
if( inSpan )
newContent.append( "</span>" );
return newContent;
}
QString ArticleView::checkElement( QWebElement & elem, QPoint const & pt )
{
/// Search for lower-level matching element
QWebElement parentElem = elem;
QWebElement childElem = elem.firstChild();
while( !childElem.isNull() )
{
if( childElem.geometry().contains( pt ) )
{
parentElem = childElem;
childElem = parentElem.firstChild();
continue;
}
childElem = childElem.nextSibling();
}
return parentElem.toPlainText();
}
QString ArticleView::wordAtPoint( int x, int y )
{
QString word;
if( popupView )
return word;
QPoint pos = mapFromGlobal( QPoint( x, y ) );
QWebFrame *frame = ui.definition->page()->frameAt( pos );
if( !frame )
return word;
QPoint posWithScroll = pos + frame->scrollPosition();
/// Find target HTML element
QWebHitTestResult result = frame->hitTestContent( pos );
QWebElement baseElem = result.enclosingBlockElement();
if( baseElem.tagName().compare( "BODY" ) == 0 || /// Assume empty field position
baseElem.tagName().compare( "HTML" ) == 0 ||
baseElem.tagName().compare( "HEAD" ) == 0 )
return word;
/// Save selection position
baseElem.evaluateJavaScript( "var __gd_sel=window.getSelection();"
"if(__gd_sel && __gd_sel.rangeCount>0) {"
"__gd_SelRange=__gd_sel.getRangeAt(0);"
"if(__gd_SelRange.collapsed) __gd_sel.removeAllRanges();"
"else {"
"__gd_StartTree=[]; __gd_EndTree=[];"
"var __gd_baseRange=document.createRange();"
"__gd_baseRange.selectNode(this);"
"if(__gd_baseRange.comparePoint(__gd_SelRange.startContainer,0)==0) {"
"__gd_StartOffset=__gd_SelRange.startOffset;"
"var __gd_child=__gd_SelRange.startContainer;"
"var __gd_parent='';"
"if(__gd_child==this) __gd_StartTree.push(-1);"
"else while(__gd_parent!=this) {"
"var n=0; __gd_parent=__gd_child.parentNode;"
"var __gd_el=__gd_parent.firstChild;"
"while(__gd_el!=__gd_child) { n++; __gd_el=__gd_el.nextSibling; }"
"__gd_StartTree.push(n);"
"__gd_child=__gd_parent;"
"}"
"}"
"if(__gd_baseRange.comparePoint(__gd_SelRange.endContainer,0)==0) {"
"__gd_EndOffset=__gd_SelRange.endOffset;"
"var __gd_child=__gd_SelRange.endContainer;"
"var __gd_parent='';"
"if(__gd_child==this) __gd_EndTree.push(-1);"
"else while(__gd_parent!=this) {"
"var n=0; __gd_parent=__gd_child.parentNode;"
"var __gd_el=__gd_parent.firstChild;"
"while(__gd_el!=__gd_child) { n++; __gd_el=__gd_el.nextSibling; }"
"__gd_EndTree.push(n);"
"__gd_child=__gd_parent;"
"}"
"}"
"}"
"}"
);
/// Enclose every word be <span> </span>
QString content = baseElem.toInnerXml();
QString newContent = insertSpans( content );
/// Set new code and re-render it to fill geometry
QImage img( baseElem.geometry().width(), baseElem.geometry().height(), QImage::Format_Mono );
img.fill( 0 );
QPainter painter( & img );
baseElem.setInnerXml( newContent );
baseElem.render( &painter );
/// Search in all child elements and check it
QWebElementCollection elemCollection = baseElem.findAll( "*" );
foreach ( QWebElement elem, elemCollection )
{
if( elem.geometry().contains( posWithScroll ) )
word = checkElement( elem, posWithScroll );
if( !word.isEmpty() )
break;
}
/// Restore old content
baseElem.setInnerXml( content );
/// Restore selection
baseElem.evaluateJavaScript( "var flag=0;"
"if(__gd_StartTree && __gd_StartTree.length) {"
"var __gd_el=this;"
"while(__gd_StartTree.length) {"
"__gd_el=__gd_el.firstChild;"
"var n=__gd_StartTree.pop();"
"if(n<0) __gd_el=this;"
"else for(var i=0;i<n;i++) __gd_el=__gd_el.nextSibling;"
"}"
"__gd_SelRange.setStart(__gd_el, __gd_StartOffset);"
"__gd_StartTree.splice(0,__gd_StartTree.length);"
"flag+=1;"
"}"
"if(__gd_EndTree && __gd_EndTree.length) {"
"var __gd_el=this;"
"while(__gd_EndTree.length) {"
"__gd_el=__gd_el.firstChild;"
"var n=__gd_EndTree.pop();"
"if(n<0) __gd_el=this;"
"else for(var i=0;i<n;i++) __gd_el=__gd_el.nextSibling;"
"}"
"__gd_SelRange.setEnd(__gd_el, __gd_EndOffset);"
"__gd_EndTree.splice(0,__gd_EndTree.length);"
"flag+=1;"
"}"
"if(flag>0) {"
"var __gd_sel=window.getSelection();"
"__gd_sel.removeAllRanges();"
"__gd_sel.addRange(__gd_SelRange);"
"}"
);
return word;
}
#endif
ResourceToSaveHandler::ResourceToSaveHandler(
ArticleView * view, sptr< Dictionary::DataRequest > req,
QString const & fileName ) :
QObject( view ),
req( req ),
fileName( fileName )
{
connect( this, SIGNAL( statusBarMessage( QString, int, QPixmap ) ),
view, SIGNAL( statusBarMessage( QString, int, QPixmap ) ) );
// If DataRequest finsihed immediately, call our handler directly
if ( req.get()->isFinished() )
{
QMetaObject::invokeMethod( this, "downloadFinished", Qt::QueuedConnection );
}
else
{
connect( req.get(), SIGNAL( finished() ), this, SLOT( downloadFinished() ) );
}
}
void ResourceToSaveHandler::downloadFinished()
{
assert( req && req.get()->isFinished() );
QByteArray resourceData;
if ( req.get()->dataSize() >= 0 )
{
vector< char > const & data = req.get()->getFullData();
resourceData = QByteArray( data.data(), data.size() );
}
// Write data to file
if ( !resourceData.isEmpty() && !fileName.isEmpty() )
{
QFileInfo fileInfo( fileName );
QDir().mkpath( fileInfo.absoluteDir().absolutePath() );
QFile file( fileName );
if ( file.open( QFile::WriteOnly ) )
{
file.write( resourceData.data(), resourceData.size() );
file.close();
}
if ( file.error() )
{
emit statusBarMessage(
tr( "ERROR: %1" ).arg( tr( "Resource saving error: " ) + file.errorString() ),
10000, QPixmap( ":/icons/error.png" ) );
}
}
else
{
emit statusBarMessage(
tr( "ERROR: %1" ).arg( tr( "The referenced resource failed to download." ) ),
10000, QPixmap( ":/icons/error.png" ) );
}
emit done();
deleteLater();
}
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