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📄 khtml_part.cpp

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        scheduleRedirection( delay, m_url.url(), delay <= 1);
#else
        scheduleRedirection( delay, m_url.url());
#endif
      }
      else
      {
        int end_pos = qData.length();
        delay = qData.left(pos).stripWhiteSpace().toDouble();
        while ( qData[++pos] == ' ' );
        if ( qData.find( "url", pos, false ) == pos )
        {
          pos += 3;
          while (qData[pos] == ' ' || qData[pos] == '=' )
              pos++;
          if ( qData[pos] == '"' )
          {
              pos++;
              int index = end_pos-1;
              while( index > pos )
              {
                if ( qData[index] == '"' )
                    break;
                index--;
              }
              if ( index > pos )
                end_pos = index;
          }
        }
#if APPLE_CHANGES
        // We want a new history item if the refresh timeout > 1 second
        scheduleRedirection( delay, d->m_doc->completeURL( qData.mid( pos, end_pos ) ), delay <= 1);
#else
        scheduleRedirection( delay, d->m_doc->completeURL( qData.mid( pos, end_pos ) ));
#endif
      }
      d->m_bHTTPRefresh = true;
    }

    // Support for http last-modified
    d->m_lastModified = d->m_job->queryMetaData("modified");
    //kdDebug() << "KHTMLPart::slotData metadata modified: " << d->m_lastModified << endl;
#if NOKIA_CHANGES
	// force fast first display mode to be off
    d->m_doc->setFastDisplayMode(false);
    if (d->m_doc->isHTMLDocument())
        static_cast<khtml::HTMLTokenizer*>(d->m_doc->tokenizer())->setForceSynchronous(true);
    d->m_fastDisplayState = d->m_fastFirstDisplayMode ? ShowingInitialDocument : ShowingFinalDocument;
    //d->m_fastDisplayState = ShowingFinalDocument;
    d->m_pendingSrc = QString();
#endif
}

#if !APPLE_CHANGES

void KHTMLPart::slotData( KIO::Job* kio_job, const QByteArray &data )
{
  assert ( d->m_job == kio_job );

  //kdDebug( 6050 ) << "slotData: " << data.size() << endl;
  // The first data ?
  if ( !d->m_workingURL.isEmpty() )
    receivedFirstData( );

  KHTMLPageCache::self()->addData(d->m_cacheId, data);
  write( data.data(), data.size() );
}

void KHTMLPart::slotRestoreData(const QByteArray &data )
{
  // The first data ?
  if ( !d->m_workingURL.isEmpty() )
  {
     long saveCacheId = d->m_cacheId;
     begin( d->m_workingURL, d->m_extension->urlArgs().xOffset, d->m_extension->urlArgs().yOffset );
     d->m_cacheId = saveCacheId;
     d->m_workingURL = KURL();
  }

  //kdDebug( 6050 ) << "slotRestoreData: " << data.size() << endl;
  write( data.data(), data.size() );

  if (data.size() == 0)
  {
      //kdDebug( 6050 ) << "slotRestoreData: <<end of data>>" << endl;
     // End of data.
    if (d->m_doc && d->m_doc->parsing())
        end(); //will emit completed()
  }
}

void KHTMLPart::showError( KIO::Job* job )
{
  kdDebug() << "KHTMLPart::showError d->m_bParsing=" << (d->m_doc && d->m_doc->parsing()) << " d->m_bComplete=" << d->m_bComplete
            << " d->m_bCleared=" << d->m_bCleared << endl;

  if (job->error() == KIO::ERR_NO_CONTENT)
	return;

  if ( (d->m_doc && d->m_doc->parsing()) || d->m_workingURL.isEmpty() ) // if we got any data already
    job->showErrorDialog( /*d->m_view*/ );
  else
  {
    htmlError( job->error(), job->errorText(), d->m_workingURL );
  }
}

// This is a protected method, placed here because of it's relevance to showError
void KHTMLPart::htmlError( int errorCode, const QString& text, const KURL& reqUrl )
{
  kdDebug(6050) << "KHTMLPart::htmlError errorCode=" << errorCode << " text=" << text << endl;
  // make sure we're not executing any embedded JS
  bool bJSFO = d->m_bJScriptForce;
  bool bJSOO = d->m_bJScriptOverride;
  d->m_bJScriptForce = false;
  d->m_bJScriptOverride = true;
  begin();
  QString errText = QString::fromLatin1( "<HTML><HEAD><TITLE>" );
  errText += i18n( "Error while loading %1" ).arg( reqUrl.htmlURL() );
  errText += QString::fromLatin1( "</TITLE></HEAD><BODY><P>" );
  errText += i18n( "An error occured while loading <B>%1</B>:" ).arg( reqUrl.htmlURL() );
  errText += QString::fromLatin1( "</P><P>" );
  QString kioErrString = KIO::buildErrorString( errorCode, text );

  kioErrString.replace(QRegExp("&"), QString("&amp;"));
  kioErrString.replace(QRegExp("<"), QString("&lt;"));
  kioErrString.replace(QRegExp(">"), QString("&gt;"));

  // In case the error string has '\n' in it, replace with <BR/>
  kioErrString.replace( QRegExp("\n"), "<BR/>" );

  errText += kioErrString;
  errText += QString::fromLatin1( "</P></BODY></HTML>" );
  write(errText);
  end();

  d->m_bJScriptForce = bJSFO;
  d->m_bJScriptOverride = bJSOO;

  // make the working url the current url, so that reload works and
  // emit the progress signals to advance one step in the history
  // (so that 'back' works)
  m_url = reqUrl; // same as d->m_workingURL
  d->m_workingURL = KURL();
  emit started( 0 );
  emit completed();
  return;
  // following disabled until 3.1

  QString errorName, techName, description;
  QStringList causes, solutions;

  QByteArray raw = KIO::rawErrorDetail( errorCode, text, &reqUrl );
  QDataStream stream(raw, IO_ReadOnly);

  stream >> errorName >> techName >> description >> causes >> solutions;

  QString url, protocol, datetime;
  url = reqUrl.prettyURL();
  protocol = reqUrl.protocol();
  datetime = KGlobal::locale()->formatDateTime( QDateTime::currentDateTime(),
                                                false );

  QString doc = QString::fromLatin1( "<html><head><title>" );
  doc += i18n( "Error: " );
  doc += errorName;
  doc += QString::fromLatin1( " - %1</title></head><body><h1>" ).arg( url );
  doc += i18n( "The requested operation could not be completed" );
  doc += QString::fromLatin1( "</h1><h2>" );
  doc += errorName;
  doc += QString::fromLatin1( "</h2>" );
  if ( techName != QString::null ) {
    doc += QString::fromLatin1( "<h2>" );
    doc += i18n( "Technical Reason: " );
    doc += techName;
    doc += QString::fromLatin1( "</h2>" );
  }
  doc += QString::fromLatin1( "<h3>" );
  doc += i18n( "Details of the Request:" );
  doc += QString::fromLatin1( "</h3><ul><li>" );
  doc += i18n( "URL: %1" ).arg( url );
  doc += QString::fromLatin1( "</li><li>" );
  if ( protocol != QString::null ) {
    // uncomment for 3.1... i18n change
    // doc += i18n( "Protocol: %1" ).arg( protocol ).arg( protocol );
    doc += QString::fromLatin1( "</li><li>" );
  }
  doc += i18n( "Date and Time: %1" ).arg( datetime );
  doc += QString::fromLatin1( "</li><li>" );
  doc += i18n( "Additional Information: %1" ).arg( text );
  doc += QString::fromLatin1( "</li></ul><h3>" );
  doc += i18n( "Description:" );
  doc += QString::fromLatin1( "</h3><p>" );
  doc += description;
  doc += QString::fromLatin1( "</p>" );
  if ( causes.count() ) {
    doc += QString::fromLatin1( "<h3>" );
    doc += i18n( "Possible Causes:" );
    doc += QString::fromLatin1( "</h3><ul><li>" );
    doc += causes.join( "</li><li>" );
    doc += QString::fromLatin1( "</li></ul>" );
  }
  if ( solutions.count() ) {
    doc += QString::fromLatin1( "<h3>" );
    doc += i18n( "Possible Solutions:" );
    doc += QString::fromLatin1( "</h3><ul><li>" );
    doc += solutions.join( "</li><li>" );
    doc += QString::fromLatin1( "</li></ul>" );
  }
  doc += QString::fromLatin1( "</body></html>" );

  write( doc );
  end();
}

#endif

void KHTMLPart::slotFinished( KIO::Job * job )
{
  if (job->error())
  {
    KHTMLPageCache::self()->cancelEntry(d->m_cacheId);
    d->m_job = 0L;
#if !APPLE_CHANGES
    emit canceled( job->errorString() );
#endif
    // TODO: what else ?
    checkCompleted();
#if !APPLE_CHANGES
    showError( job );
#endif
    return;
  }
  //kdDebug( 6050 ) << "slotFinished" << endl;

  KHTMLPageCache::self()->endData(d->m_cacheId);

  if ( d->m_doc && d->m_doc->docLoader()->expireDate() && m_url.protocol().lower().startsWith("http"))
      KIO::http_update_cache(m_url, false, d->m_doc->docLoader()->expireDate());

  d->m_workingURL = KURL();
  d->m_job = 0L;

  if (d->m_doc->parsing())
      end(); //will emit completed()
}

#if APPLE_CHANGES
void KHTMLPart::childBegin()
{
    // We need to do this when the child is created so as to avoid the bogus state of the parent's
    // child->m_bCompleted being false but the child's m_bComplete being true.  If the child gets
    // an error early on, we had trouble where checkingComplete on the child was a NOP because
    // it thought it was already complete, and thus the parent was never signaled, and never set
    // its child->m_bComplete.
    d->m_bComplete = false;
}
#endif

void KHTMLPart::begin( const KURL &url, int xOffset, int yOffset )
{
#if APPLE_CHANGES
  // If we aren't loading an actual URL, then we need to make sure
  // that we have at least an empty document. createEmptyDocument will
  // do that if we don't have a document already.
  if (d->m_workingURL.isEmpty()) {
    KWQ(this)->createEmptyDocument();
  }
#endif

  clear();

#if APPLE_CHANGES
  KWQ(this)->partClearedInBegin();
#endif

  // Only do this after clearing the part, so that JavaScript can
  // clean up properly if it was on for the last load.
#if !APPLE_CHANGES
  d->m_bJScriptEnabled = KHTMLFactory::defaultHTMLSettings()->isJavaScriptEnabled(url.host());
#else
  d->m_bJScriptEnabled = d->m_settings->isJavaScriptEnabled(url.host());
#endif

  d->m_bCleared = false;
  d->m_cacheId = 0;
  d->m_bComplete = false;
  d->m_bLoadEventEmitted = false;
  d->m_bLoadingMainResource = true;

  if(url.isValid()) {
#if APPLE_CHANGES
      KHTMLFactory::vLinks()->insert( KWQ(this)->requestedURLString() );
#else
      QString urlString = url.url();
      KHTMLFactory::vLinks()->insert( urlString );
      QString urlString2 = url.prettyURL();
      if ( urlString != urlString2 ) {
          KHTMLFactory::vLinks()->insert( urlString2 );
      }
#endif
  }

  // ###
  //stopParser();

  KParts::URLArgs args( d->m_extension->urlArgs() );
  args.xOffset = xOffset;
  args.yOffset = yOffset;
  d->m_extension->setURLArgs( args );

  KURL ref(url);
  ref.setUser(QSTRING_NULL);
  ref.setPass(QSTRING_NULL);
  ref.setRef(QSTRING_NULL);
  d->m_referrer = ref.url();
  m_url = url;
  KURL baseurl;

#if APPLE_CHANGES
  // We don't need KDE chained URI handling or window caption setting
  if ( !m_url.isEmpty() )
  {
    baseurl = m_url;
  }
#else
  if ( !m_url.isEmpty() )
  {
    KURL::List lst = KURL::split( m_url );
    if ( !lst.isEmpty() )
      baseurl = *lst.begin();

    KURL title( baseurl );
    title.setRef( QString::null );
    title.setQuery( QString::null );
    emit setWindowCaption( title.url() );
  }
  else
    emit setWindowCaption( i18n( "no title", "* Unknown *" ) );
#endif

  if (args.serviceType == "text/xml" || args.serviceType == "application/xml" || args.serviceType == "application/xhtml+xml" ||
      args.serviceType == "text/xsl" || args.serviceType == "application/rss+xml" || args.serviceType == "application/atom+xml")
    d->m_doc = DOMImplementationImpl::instance()->createDocument( d->m_view );
  else
    d->m_doc = DOMImplementationImpl::instance()->createHTMLDocument( d->m_view );

  d->m_doc->ref();
  if (!d->m_doc->attached())
    d->m_doc->attach( );
  d->m_doc->setURL( m_url.url() );
  // We prefer m_baseURL over m_url because m_url changes when we are
  // about to load a new page.
  d->m_doc->setBaseURL( baseurl.url() );
#if APPLE_CHANGES
  if (d->m_decoder)
    d->m_doc->setDecoder(d->m_decoder);
#endif
#if !APPLE_CHANGES
  d->m_doc->docLoader()->setShowAnimations( KHTMLFactory::defaultHTMLSettings()->showAnimations() );
#else
  d->m_doc->docLoader()->setShowAnimations( d->m_settings->showAnimations() );
#endif

#if APPLE_CHANGES
  KWQ(this)->updatePolicyBaseURL();
#endif

#if !APPLE_CHANGES
  d->m_paUseStylesheet->setItems(QStringList());
  d->m_paUseStylesheet->setEnabled( false );
#endif

#if !APPLE_CHANGES
  setAutoloadImages( KHTMLFactory::defaultHTMLSettings()->autoLoadImages() );
  QString userStyleSheet = KHTMLFactory::defaultHTMLSettings()->userStyleSheet();
#else
  setAutoloadImages( d->m_settings->autoLoadImages() );
  QString userStyleSheet = d->m_settings->userStyleSheet();
#endif

  if ( !userStyleSheet.isEmpty() )
    setUserStyleSheet( KURL( userStyleSheet ) );

#if APPLE_CHANGES
  KWQ(this)->restoreDocumentState();
#else
  d->m_doc->setRestoreState(args.docState);
#endif

  d->m_doc->implicitOpen();
  // clear widget
  if (d->m_view)
    d->m_view->resizeContents( 0, 0 );
  connect(d->m_doc,SIGNAL(finishedParsing()),this,SLOT(slotFinishedParsing()));

#if !APPLE_CHANGES
  emit d->m_extension->enableAction( "print", true );
#endif
}

void KHTMLPart::write( const char *str, int len )
{
    if ( !d->m_decoder ) {
        d->m_decoder = new Decoder;
        if (!d->m_encoding.isNull())
            d->m_decoder->setEncoding(d->m_encoding.latin1(),
                d->m_haveEncoding ? Decoder::UserChosenEncoding : Decoder::EncodingFromHTTPHeader);
        else {
            // Inherit the default encoding from the parent frame if there is one.
            const char *defaultEncoding = (parentPart() && parentPart()->d->m_decoder)
                ? parentPart()->d->m_decoder->encoding() : settings()->encoding().latin1();
            d->m_decoder->setEncoding(defaultEncoding, Decoder::DefaultEncoding);
        }
#if APPLE_CHANGES
        if (d->m_doc)
            d->m_doc->setDecoder(d->m_decoder);
#endif
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