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614 lines
22 KiB
614 lines
22 KiB
/* This file is part of the KDE project
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Copyright (C) 2002 David Faure <david@mandrakesoft.com>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include "kmultipart.h"
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#include <qvbox.h>
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#include <kinstance.h>
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#include <kmimetype.h>
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#include <klocale.h>
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#include <kio/job.h>
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#include <qfile.h>
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#include <ktempfile.h>
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#include <kmessagebox.h>
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#include <kparts/componentfactory.h>
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#include <kparts/genericfactory.h>
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#include <khtml_part.h>
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#include <unistd.h>
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#include <kxmlguifactory.h>
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#include <qtimer.h>
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typedef KParts::GenericFactory<KMultiPart> KMultiPartFactory; // factory for the part
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K_EXPORT_COMPONENT_FACTORY( libkmultipart /*library name*/, KMultiPartFactory )
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//#define DEBUG_PARSING
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class KLineParser
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{
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public:
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KLineParser() {
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m_lineComplete = false;
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}
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void addChar( char c, bool storeNewline ) {
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if ( !storeNewline && c == '\r' )
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return;
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Q_ASSERT( !m_lineComplete );
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if ( storeNewline || c != '\n' ) {
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int sz = m_currentLine.size();
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m_currentLine.resize( sz+1, QGArray::SpeedOptim );
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m_currentLine[sz] = c;
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}
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if ( c == '\n' )
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m_lineComplete = true;
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}
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bool isLineComplete() const {
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return m_lineComplete;
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}
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QByteArray currentLine() const {
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return m_currentLine;
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}
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void clearLine() {
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Q_ASSERT( m_lineComplete );
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reset();
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}
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void reset() {
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m_currentLine.resize( 0, QGArray::SpeedOptim );
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m_lineComplete = false;
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}
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private:
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QByteArray m_currentLine;
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bool m_lineComplete; // true when ending with '\n'
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};
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/* testcase:
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Content-type: multipart/mixed;boundary=ThisRandomString
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--ThisRandomString
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Content-type: text/plain
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Data for the first object.
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--ThisRandomString
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Content-type: text/plain
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Data for the second and last object.
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--ThisRandomString--
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*/
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KMultiPart::KMultiPart( QWidget *parentWidget, const char *widgetName,
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QObject *parent, const char *name, const QStringList& )
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: KParts::ReadOnlyPart( parent, name )
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{
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m_filter = 0L;
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setInstance( KMultiPartFactory::instance() );
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QVBox *box = new QVBox( parentWidget, widgetName );
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setWidget( box );
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m_extension = new KParts::BrowserExtension( this );
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// We probably need to use m_extension to get the urlArgs in openURL...
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m_part = 0L;
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m_isHTMLPart = false;
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m_job = 0L;
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m_lineParser = new KLineParser;
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m_tempFile = 0L;
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m_timer = new QTimer( this );
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connect( m_timer, SIGNAL( timeout() ), this, SLOT( slotProgressInfo() ) );
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}
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KMultiPart::~KMultiPart()
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{
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// important: delete the nested part before the part or qobject destructor runs.
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// we now delete the nested part which deletes the part's widget which makes
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// _OUR_ m_widget 0 which in turn avoids our part destructor to delete the
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// widget ;-)
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// ### additional note: it _can_ be that the part has been deleted before:
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// when we're in a html frameset and the view dies first, then it will also
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// kill the htmlpart
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if ( m_part )
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delete static_cast<KParts::ReadOnlyPart *>( m_part );
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delete m_job;
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delete m_lineParser;
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if ( m_tempFile ) {
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m_tempFile->setAutoDelete( true );
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delete m_tempFile;
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}
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delete m_filter;
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m_filter = 0L;
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}
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void KMultiPart::startHeader()
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{
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m_bParsingHeader = true; // we expect a header to come first
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m_bGotAnyHeader = false;
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m_gzip = false;
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// just to be sure for now
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delete m_filter;
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m_filter = 0L;
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}
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bool KMultiPart::openURL( const KURL &url )
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{
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m_url = url;
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m_lineParser->reset();
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startHeader();
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KParts::URLArgs args = m_extension->urlArgs();
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//m_mimeType = args.serviceType;
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// Hmm, args.reload is set to true when reloading, but this doesn't seem to be enough...
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// I get "HOLD: Reusing held slave for <url>", and the old data
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m_job = KIO::get( url, args.reload, false );
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emit started( 0 /*m_job*/ ); // don't pass the job, it would interfer with our own infoMessage
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connect( m_job, SIGNAL( result( KIO::Job * ) ),
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this, SLOT( slotJobFinished( KIO::Job * ) ) );
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connect( m_job, SIGNAL( data( KIO::Job *, const QByteArray & ) ),
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this, SLOT( slotData( KIO::Job *, const QByteArray & ) ) );
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m_numberOfFrames = 0;
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m_numberOfFramesSkipped = 0;
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m_totalNumberOfFrames = 0;
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m_qtime.start();
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m_timer->start( 1000 ); //1s
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return true;
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}
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// Yes, libkdenetwork's has such a parser already (MultiPart),
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// but it works on the complete string, expecting the whole data to be available....
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// The version here is asynchronous.
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void KMultiPart::slotData( KIO::Job *job, const QByteArray &data )
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{
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if (m_boundary.isNull())
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{
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QString tmp = job->queryMetaData("media-boundary");
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kdDebug() << "Got Boundary from kio-http '" << tmp << "'" << endl;
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if ( !tmp.isEmpty() ) {
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if (tmp.startsWith("--"))
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m_boundary = tmp.latin1();
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else
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m_boundary = QCString("--")+tmp.latin1();
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m_boundaryLength = m_boundary.length();
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}
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}
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// Append to m_currentLine until eol
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for ( uint i = 0; i < data.size() ; ++i )
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{
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// Store char. Skip if '\n' and currently parsing a header.
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m_lineParser->addChar( data[i], !m_bParsingHeader );
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if ( m_lineParser->isLineComplete() )
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{
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QByteArray lineData = m_lineParser->currentLine();
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#ifdef DEBUG_PARSING
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kdDebug() << "lineData.size()=" << lineData.size() << endl;
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#endif
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QCString line( lineData.data(), lineData.size()+1 ); // deep copy
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// 0-terminate the data, but only for the line-based tests below
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// We want to keep the raw data in case it ends up in sendData()
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int sz = line.size();
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if ( sz > 0 )
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line[sz-1] = '\0';
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#ifdef DEBUG_PARSING
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kdDebug() << "[" << m_bParsingHeader << "] line='" << line << "'" << endl;
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#endif
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if ( m_bParsingHeader )
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{
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if ( !line.isEmpty() )
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m_bGotAnyHeader = true;
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if ( m_boundary.isNull() )
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{
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if ( !line.isEmpty() ) {
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#ifdef DEBUG_PARSING
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kdDebug() << "Boundary is " << line << endl;
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#endif
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m_boundary = line;
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m_boundaryLength = m_boundary.length();
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}
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}
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else if ( !qstrnicmp( line.data(), "Content-Encoding:", 17 ) )
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{
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QString encoding = QString::fromLatin1(line.data()+17).stripWhiteSpace().lower();
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if (encoding == "gzip" || encoding == "x-gzip") {
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m_gzip = true;
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} else {
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kdDebug() << "FIXME: unhandled encoding type in KMultiPart: " << encoding << endl;
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}
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}
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// parse Content-Type
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else if ( !qstrnicmp( line.data(), "Content-Type:", 13 ) )
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{
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Q_ASSERT( m_nextMimeType.isNull() );
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m_nextMimeType = QString::fromLatin1( line.data() + 14 ).stripWhiteSpace();
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int semicolon = m_nextMimeType.find( ';' );
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if ( semicolon != -1 )
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m_nextMimeType = m_nextMimeType.left( semicolon );
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kdDebug() << "m_nextMimeType=" << m_nextMimeType << endl;
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}
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// Empty line, end of headers (if we had any header line before)
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else if ( line.isEmpty() && m_bGotAnyHeader )
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{
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m_bParsingHeader = false;
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#ifdef DEBUG_PARSING
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kdDebug() << "end of headers" << endl;
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#endif
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startOfData();
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}
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// First header (when we know it from kio_http)
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else if ( line == m_boundary )
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; // nothing to do
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else if ( !line.isEmpty() ) // this happens with e.g. Set-Cookie:
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kdDebug() << "Ignoring header " << line << endl;
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} else {
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if ( !qstrncmp( line, m_boundary, m_boundaryLength ) )
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{
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#ifdef DEBUG_PARSING
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kdDebug() << "boundary found!" << endl;
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kdDebug() << "after it is " << line.data() + m_boundaryLength << endl;
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#endif
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// Was it the very last boundary ?
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if ( !qstrncmp( line.data() + m_boundaryLength, "--", 2 ) )
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{
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#ifdef DEBUG_PARSING
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kdDebug() << "Completed!" << endl;
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#endif
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endOfData();
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emit completed();
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} else
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{
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char nextChar = *(line.data() + m_boundaryLength);
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#ifdef DEBUG_PARSING
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kdDebug() << "KMultiPart::slotData nextChar='" << nextChar << "'" << endl;
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#endif
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if ( nextChar == '\n' || nextChar == '\r' ) {
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endOfData();
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startHeader();
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}
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else {
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// otherwise, false hit, it has trailing stuff
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sendData( lineData );
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}
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}
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} else {
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// send to part
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sendData( lineData );
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}
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}
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m_lineParser->clearLine();
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}
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}
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}
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void KMultiPart::setPart( const QString& mimeType )
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{
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KXMLGUIFactory *guiFactory = factory();
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if ( guiFactory ) // seems to be 0 when restoring from SM
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guiFactory->removeClient( this );
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kdDebug() << "KMultiPart::setPart " << mimeType << endl;
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delete m_part;
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// Try to find an appropriate viewer component
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m_part = KParts::ComponentFactory::createPartInstanceFromQuery<KParts::ReadOnlyPart>
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( m_mimeType, QString::null, widget(), 0L, this, 0L );
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if ( !m_part ) {
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// TODO launch external app
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KMessageBox::error( widget(), i18n("No handler found for %1!").arg(m_mimeType) );
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return;
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}
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// By making the part a child XMLGUIClient of ours, we get its GUI merged in.
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insertChildClient( m_part );
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m_part->widget()->show();
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connect( m_part, SIGNAL( completed() ),
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this, SLOT( slotPartCompleted() ) );
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m_isHTMLPart = ( mimeType == "text/html" );
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KParts::BrowserExtension* childExtension = KParts::BrowserExtension::childObject( m_part );
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if ( childExtension )
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{
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// Forward signals from the part's browser extension
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// this is very related (but not exactly like) KHTMLPart::processObjectRequest
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connect( childExtension, SIGNAL( openURLNotify() ),
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m_extension, SIGNAL( openURLNotify() ) );
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connect( childExtension, SIGNAL( openURLRequestDelayed( const KURL &, const KParts::URLArgs & ) ),
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m_extension, SIGNAL( openURLRequest( const KURL &, const KParts::URLArgs & ) ) );
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connect( childExtension, SIGNAL( createNewWindow( const KURL &, const KParts::URLArgs & ) ),
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m_extension, SIGNAL( createNewWindow( const KURL &, const KParts::URLArgs & ) ) );
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connect( childExtension, SIGNAL( createNewWindow( const KURL &, const KParts::URLArgs &, const KParts::WindowArgs &, KParts::ReadOnlyPart *& ) ),
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m_extension, SIGNAL( createNewWindow( const KURL &, const KParts::URLArgs & , const KParts::WindowArgs &, KParts::ReadOnlyPart *&) ) );
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// Keep in sync with khtml_part.cpp
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connect( childExtension, SIGNAL( popupMenu( const QPoint &, const KFileItemList & ) ),
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m_extension, SIGNAL( popupMenu( const QPoint &, const KFileItemList & ) ) );
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connect( childExtension, SIGNAL( popupMenu( KXMLGUIClient *, const QPoint &, const KFileItemList & ) ),
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m_extension, SIGNAL( popupMenu( KXMLGUIClient *, const QPoint &, const KFileItemList & ) ) );
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connect( childExtension, SIGNAL( popupMenu( KXMLGUIClient *, const QPoint &, const KFileItemList &, const KParts::URLArgs &, KParts::BrowserExtension::PopupFlags ) ),
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m_extension, SIGNAL( popupMenu( KXMLGUIClient *, const QPoint &, const KFileItemList &, const KParts::URLArgs &, KParts::BrowserExtension::PopupFlags ) ) );
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connect( childExtension, SIGNAL( popupMenu( const QPoint &, const KURL &, const QString &, mode_t ) ),
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m_extension, SIGNAL( popupMenu( const QPoint &, const KURL &, const QString &, mode_t ) ) );
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connect( childExtension, SIGNAL( popupMenu( KXMLGUIClient *, const QPoint &, const KURL &, const QString &, mode_t ) ),
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m_extension, SIGNAL( popupMenu( KXMLGUIClient *, const QPoint &, const KURL &, const QString &, mode_t ) ) );
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connect( childExtension, SIGNAL( popupMenu( KXMLGUIClient *, const QPoint &, const KURL &, const KParts::URLArgs &, KParts::BrowserExtension::PopupFlags, mode_t ) ),
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m_extension, SIGNAL( popupMenu( KXMLGUIClient *, const QPoint &, const KURL &, const KParts::URLArgs &, KParts::BrowserExtension::PopupFlags, mode_t ) ) );
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if ( m_isHTMLPart )
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connect( childExtension, SIGNAL( infoMessage( const QString & ) ),
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m_extension, SIGNAL( infoMessage( const QString & ) ) );
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// For non-HTML we prefer to show our infoMessage ourselves.
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childExtension->setBrowserInterface( m_extension->browserInterface() );
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connect( childExtension, SIGNAL( enableAction( const char *, bool ) ),
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m_extension, SIGNAL( enableAction( const char *, bool ) ) );
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connect( childExtension, SIGNAL( setLocationBarURL( const QString& ) ),
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m_extension, SIGNAL( setLocationBarURL( const QString& ) ) );
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connect( childExtension, SIGNAL( setIconURL( const KURL& ) ),
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m_extension, SIGNAL( setIconURL( const KURL& ) ) );
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connect( childExtension, SIGNAL( loadingProgress( int ) ),
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m_extension, SIGNAL( loadingProgress( int ) ) );
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if ( m_isHTMLPart ) // for non-HTML we have our own
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connect( childExtension, SIGNAL( speedProgress( int ) ),
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m_extension, SIGNAL( speedProgress( int ) ) );
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connect( childExtension, SIGNAL( selectionInfo( const KFileItemList& ) ),
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m_extension, SIGNAL( selectionInfo( const KFileItemList& ) ) );
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connect( childExtension, SIGNAL( selectionInfo( const QString& ) ),
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m_extension, SIGNAL( selectionInfo( const QString& ) ) );
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connect( childExtension, SIGNAL( selectionInfo( const KURL::List& ) ),
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m_extension, SIGNAL( selectionInfo( const KURL::List& ) ) );
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connect( childExtension, SIGNAL( mouseOverInfo( const KFileItem* ) ),
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m_extension, SIGNAL( mouseOverInfo( const KFileItem* ) ) );
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connect( childExtension, SIGNAL( moveTopLevelWidget( int, int ) ),
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m_extension, SIGNAL( moveTopLevelWidget( int, int ) ) );
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connect( childExtension, SIGNAL( resizeTopLevelWidget( int, int ) ),
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m_extension, SIGNAL( resizeTopLevelWidget( int, int ) ) );
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}
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m_partIsLoading = false;
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// Load the part's plugins too.
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// ###### This is a hack. The bug is that KHTMLPart doesn't load its plugins
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// if className != "Browser/View".
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loadPlugins( this, m_part, m_part->instance() );
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// Get the part's GUI to appear
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if ( guiFactory )
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guiFactory->addClient( this );
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}
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void KMultiPart::startOfData()
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{
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kdDebug() << "KMultiPart::startOfData" << endl;
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Q_ASSERT( !m_nextMimeType.isNull() );
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if( m_nextMimeType.isNull() )
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return;
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if ( m_gzip )
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{
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m_filter = new HTTPFilterGZip;
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connect( m_filter, SIGNAL( output( const QByteArray& ) ), this, SLOT( reallySendData( const QByteArray& ) ) );
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}
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if ( m_mimeType != m_nextMimeType )
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{
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// Need to switch parts (or create the initial one)
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m_mimeType = m_nextMimeType;
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setPart( m_mimeType );
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}
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Q_ASSERT( m_part );
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// Pass URLArgs (e.g. reload)
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KParts::BrowserExtension* childExtension = KParts::BrowserExtension::childObject( m_part );
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if ( childExtension )
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childExtension->setURLArgs( m_extension->urlArgs() );
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m_nextMimeType = QString::null;
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if ( m_tempFile ) {
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m_tempFile->setAutoDelete( true );
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delete m_tempFile;
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m_tempFile = 0;
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}
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if ( m_isHTMLPart )
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{
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KHTMLPart* htmlPart = static_cast<KHTMLPart *>( static_cast<KParts::ReadOnlyPart *>( m_part ) );
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htmlPart->begin( url() );
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}
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else
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{
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// ###### TODO use a QByteArray and a data: URL instead
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m_tempFile = new KTempFile;
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}
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}
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void KMultiPart::sendData( const QByteArray& line )
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{
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if ( m_filter )
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{
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m_filter->slotInput( line );
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}
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else
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{
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reallySendData( line );
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}
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}
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void KMultiPart::reallySendData( const QByteArray& line )
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{
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if ( m_isHTMLPart )
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{
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KHTMLPart* htmlPart = static_cast<KHTMLPart *>( static_cast<KParts::ReadOnlyPart *>( m_part ) );
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htmlPart->write( line.data(), line.size() );
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}
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else if ( m_tempFile )
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{
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m_tempFile->file()->writeBlock( line.data(), line.size() );
|
|
}
|
|
}
|
|
|
|
void KMultiPart::endOfData()
|
|
{
|
|
Q_ASSERT( m_part );
|
|
if ( m_isHTMLPart )
|
|
{
|
|
KHTMLPart* htmlPart = static_cast<KHTMLPart *>( static_cast<KParts::ReadOnlyPart *>( m_part ) );
|
|
htmlPart->end();
|
|
} else if ( m_tempFile )
|
|
{
|
|
m_tempFile->close();
|
|
if ( m_partIsLoading )
|
|
{
|
|
// The part is still loading the last data! Let it proceed then
|
|
// Otherwise we'd keep cancelling it, and nothing would ever show up...
|
|
kdDebug() << "KMultiPart::endOfData part isn't ready, skipping frame" << endl;
|
|
++m_numberOfFramesSkipped;
|
|
m_tempFile->setAutoDelete( true );
|
|
}
|
|
else
|
|
{
|
|
kdDebug() << "KMultiPart::endOfData opening " << m_tempFile->name() << endl;
|
|
KURL url;
|
|
url.setPath( m_tempFile->name() );
|
|
m_partIsLoading = true;
|
|
(void) m_part->openURL( url );
|
|
}
|
|
delete m_tempFile;
|
|
m_tempFile = 0L;
|
|
}
|
|
}
|
|
|
|
void KMultiPart::slotPartCompleted()
|
|
{
|
|
if ( !m_isHTMLPart )
|
|
{
|
|
Q_ASSERT( m_part );
|
|
// Delete temp file used by the part
|
|
Q_ASSERT( m_part->url().isLocalFile() );
|
|
kdDebug() << "slotPartCompleted deleting " << m_part->url().path() << endl;
|
|
(void) unlink( QFile::encodeName( m_part->url().path() ) );
|
|
m_partIsLoading = false;
|
|
++m_numberOfFrames;
|
|
// Do not emit completed from here.
|
|
}
|
|
}
|
|
|
|
bool KMultiPart::closeURL()
|
|
{
|
|
m_timer->stop();
|
|
if ( m_part )
|
|
return m_part->closeURL();
|
|
return true;
|
|
}
|
|
|
|
void KMultiPart::guiActivateEvent( KParts::GUIActivateEvent * )
|
|
{
|
|
// Not public!
|
|
//if ( m_part )
|
|
// m_part->guiActivateEvent( e );
|
|
}
|
|
|
|
void KMultiPart::slotJobFinished( KIO::Job *job )
|
|
{
|
|
if ( job->error() )
|
|
{
|
|
// TODO use khtml's error:// scheme
|
|
job->showErrorDialog();
|
|
emit canceled( job->errorString() );
|
|
}
|
|
else
|
|
{
|
|
/*if ( m_khtml->view()->contentsY() == 0 )
|
|
{
|
|
KParts::URLArgs args = m_ext->urlArgs();
|
|
m_khtml->view()->setContentsPos( args.xOffset, args.yOffset );
|
|
}*/
|
|
|
|
emit completed();
|
|
|
|
//QTimer::singleShot( 0, this, SLOT( updateWindowCaption() ) );
|
|
}
|
|
m_job = 0L;
|
|
}
|
|
|
|
void KMultiPart::slotProgressInfo()
|
|
{
|
|
int time = m_qtime.elapsed();
|
|
if ( !time ) return;
|
|
if ( m_totalNumberOfFrames == m_numberOfFrames + m_numberOfFramesSkipped )
|
|
return; // No change, don't overwrite statusbar messages if any
|
|
//kdDebug() << m_numberOfFrames << " in " << time << " milliseconds" << endl;
|
|
QString str( "%1 frames per second, %2 frames skipped per second" );
|
|
str = str.arg( 1000.0 * (double)m_numberOfFrames / (double)time );
|
|
str = str.arg( 1000.0 * (double)m_numberOfFramesSkipped / (double)time );
|
|
m_totalNumberOfFrames = m_numberOfFrames + m_numberOfFramesSkipped;
|
|
//kdDebug() << str << endl;
|
|
emit m_extension->infoMessage( str );
|
|
}
|
|
|
|
KAboutData* KMultiPart::createAboutData()
|
|
{
|
|
KAboutData* aboutData = new KAboutData( "kmultipart", I18N_NOOP("KMultiPart"),
|
|
"0.1",
|
|
I18N_NOOP( "Embeddable component for multipart/mixed" ),
|
|
KAboutData::License_GPL,
|
|
"(c) 2001, David Faure <david@mandrakesoft.com>");
|
|
return aboutData;
|
|
}
|
|
|
|
#if 0
|
|
KMultiPartBrowserExtension::KMultiPartBrowserExtension( KMultiPart *parent, const char *name )
|
|
: KParts::BrowserExtension( parent, name )
|
|
{
|
|
m_imgPart = parent;
|
|
}
|
|
|
|
int KMultiPartBrowserExtension::xOffset()
|
|
{
|
|
return m_imgPart->doc()->view()->contentsX();
|
|
}
|
|
|
|
int KMultiPartBrowserExtension::yOffset()
|
|
{
|
|
return m_imgPart->doc()->view()->contentsY();
|
|
}
|
|
|
|
void KMultiPartBrowserExtension::print()
|
|
{
|
|
static_cast<KHTMLPartBrowserExtension *>( m_imgPart->doc()->browserExtension() )->print();
|
|
}
|
|
|
|
void KMultiPartBrowserExtension::reparseConfiguration()
|
|
{
|
|
static_cast<KHTMLPartBrowserExtension *>( m_imgPart->doc()->browserExtension() )->reparseConfiguration();
|
|
m_imgPart->doc()->setAutoloadImages( true );
|
|
}
|
|
#endif
|
|
|
|
#include "kmultipart.moc"
|