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/* -*- c++ -*-
khtmlparthtmlwriter.cpp
This file is part of KMail, the KDE mail client.
Copyright (c) 2003 Marc Mutz <mutz@kde.org>
KMail is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License, version 2, as
published by the Free Software Foundation.
KMail is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
In addition, as a special exception, the copyright holders give
permission to link the code of this program with any edition of
the Qt library by Trolltech AS, Norway (or with modified versions
of Qt that use the same license as Qt), and distribute linked
combinations including the two. You must obey the GNU General
Public License in all respects for all of the code used other than
Qt. If you modify this file, you may extend this exception to
your version of the file, but you are not obligated to do so. If
you do not wish to do so, delete this exception statement from
your version.
*/
#include <config.h>
#include "khtmlparthtmlwriter.h"
#include <kdebug.h>
#include <khtml_part.h>
#include <khtmlview.h>
#include <dom/dom_string.h>
#include <dom/html_document.h>
#include <dom/html_image.h>
#include <dom/html_misc.h>
#include <cassert>
namespace KMail {
KHtmlPartHtmlWriter::KHtmlPartHtmlWriter( KHTMLPart * part,
QObject * parent, const char * name )
: QObject( parent, name ), HtmlWriter(),
mHtmlPart( part ), mState( Ended ), mHtmlTimer( 0, "mHtmlTimer" )
{
assert( part );
connect( &mHtmlTimer, SIGNAL(timeout()), SLOT(slotWriteNextHtmlChunk()) );
}
KHtmlPartHtmlWriter::~KHtmlPartHtmlWriter() {
}
void KHtmlPartHtmlWriter::begin( const QString & css ) {
if ( mState != Ended ) {
kdWarning( 5006 ) << "KHtmlPartHtmlWriter: begin() called on non-ended session!" << endl;
reset();
}
mEmbeddedPartMap.clear();
// clear the widget:
mHtmlPart->view()->setUpdatesEnabled( false );
mHtmlPart->view()->viewport()->setUpdatesEnabled( false );
static_cast<QScrollView *>(mHtmlPart->widget())->ensureVisible( 0, 0 );
mHtmlPart->begin( KURL( "file:/" ) );
if ( !css.isEmpty() )
mHtmlPart->setUserStyleSheet( css );
mState = Begun;
}
void KHtmlPartHtmlWriter::end() {
kdWarning( mState != Begun, 5006 ) << "KHtmlPartHtmlWriter: end() called on non-begun or queued session!" << endl;
mHtmlPart->end();
resolveCidUrls();
mHtmlPart->view()->viewport()->setUpdatesEnabled( true );
mHtmlPart->view()->setUpdatesEnabled( true );
mHtmlPart->view()->viewport()->repaint( false );
mState = Ended;
}
void KHtmlPartHtmlWriter::reset() {
if ( mState != Ended ) {
mHtmlTimer.stop();
mHtmlQueue.clear();
mState = Begun; // don't run into end()'s warning
end();
}
mState = Ended;
}
void KHtmlPartHtmlWriter::write( const QString & str ) {
kdWarning( mState != Begun, 5006 ) << "KHtmlPartHtmlWriter: write() called in Ended or Queued state!" << endl;
mHtmlPart->write( str );
}
void KHtmlPartHtmlWriter::queue( const QString & str ) {
static const uint chunksize = 16384;
for ( uint pos = 0 ; pos < str.length() ; pos += chunksize )
mHtmlQueue.push_back( str.mid( pos, chunksize ) );
mState = Queued;
}
void KHtmlPartHtmlWriter::flush() {
slotWriteNextHtmlChunk();
}
void KHtmlPartHtmlWriter::slotWriteNextHtmlChunk() {
if ( mHtmlQueue.empty() ) {
mState = Begun; // don't run into end()'s warning
end();
} else {
mHtmlPart->write( mHtmlQueue.front() );
mHtmlQueue.pop_front();
mHtmlTimer.start( 0, true );
}
}
void KHtmlPartHtmlWriter::embedPart( const QCString & contentId,
const QString & contentURL ) {
mEmbeddedPartMap[QString(contentId)] = contentURL;
}
void KHtmlPartHtmlWriter::resolveCidUrls()
{
DOM::HTMLDocument document = mHtmlPart->htmlDocument();
DOM::HTMLCollection images = document.images();
for ( DOM::Node node = images.firstItem(); !node.isNull(); node = images.nextItem() ) {
DOM::HTMLImageElement image( node );
KURL url( image.src().string() );
if ( url.protocol() == "cid" ) {
EmbeddedPartMap::const_iterator it = mEmbeddedPartMap.find( url.path() );
if ( it != mEmbeddedPartMap.end() ) {
kdDebug(5006) << "Replacing " << url.prettyURL() << " by " << it.data() << endl;
image.setSrc( it.data() );
}
}
}
}
} // namespace KMail
#include "khtmlparthtmlwriter.moc"
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