Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdepim@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 154 insertions, 0 deletions

diff --git a/kmail/khtmlparthtmlwriter.cpp b/kmail/khtmlparthtmlwriter.cpp
new file mode 100644
index 000000000..643d743c2
--- /dev/null
+++ b/kmail/khtmlparthtmlwriter.cpp
@@ -0,0 +1,154 @@
+/*  -*- 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"