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