Fixes #94

HTML emails can't be opened because they are not written to disk. This
fixes it by writing all parts of the email unconditionally to disk and
adds a '.html' file extension if the part is of type HTML.
Signed-off-by: Paul Schwabauer <Paul Schwabauer pschwabauer@intevation.de>

kmail/kmreaderwin.cpp

@@ -1775,8 +1775,12 @@ TQString KMReaderWin::writeMessagePartToTempFile( KMMessagePart* aMsgPart,
   int slashPos = fileName.findRev( '/' );
   if( -1 != slashPos )
     fileName = fileName.mid( slashPos + 1 );
-  if( fileName.isEmpty() )
+  if( fileName.isEmpty() ) {
     fileName = "unnamed";
+    // Save html emails with extension
+    if (aMsgPart->subtype() == DwMime::kSubtypeHtml )
+      fileName += ".html";
+  }
   fname += "/" + fileName;
 
   TQByteArray data = aMsgPart->bodyDecodedBinary();
@@ -3041,11 +3045,11 @@ TQString KMReaderWin::renderAttachments(partNode * node, const TQColor &bgColor
         html += "</div>";
     }
   } else {
+    TQString fileName = writeMessagePartToTempFile( &node->msgPart(), node->nodeId() );
     partNode::AttachmentDisplayInfo info = node->attachmentDisplayInfo();
     if ( info.displayInHeader ) {
       html += "<div style=\"float:left;\">";
       html += TQString::fromLatin1( "<span style=\"white-space:nowrap; border-width: 0px; border-left-width: 5px; border-color: %1; 2px; border-left-style: solid;\">" ).arg( bgColor.name() );
-      TQString fileName = writeMessagePartToTempFile( &node->msgPart(), node->nodeId() );
       TQString href = node->asHREF( "header" );
       html += TQString::fromLatin1( "<a href=\"" ) + href +
               TQString::fromLatin1( "\">" );