/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org libmime code.
*
* The Initial Developer of the Original Code is
* Ben Bucksch <http://www.bucksch.org/1/projects/mozilla/</a>>.
* Portions created by the Initial Developer are Copyright (C) 2002
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
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* the provisions above, a recipient may use your version of this file under
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*
* ***** END LICENSE BLOCK ***** */
/* TODO:
- If you Save As File .html with this mode, you get a total mess.
- Print is untested (crashes in all modes).
*/
/* If you fix a bug here, check, if the same is also in mimethsa, because that
class is based on this class. */
/* backported to ns3 by jwz, 2-Nov-2004 */
/* on second thought, ah, fuck it. */
#include "mimethpl.h"
#define MIME_SUPERCLASS mimeInlineTextPlainClass
/* I should use the Flowed class as base (because our HTML->TXT converter
can generate flowed, and we tell it to) - this would get a bit nicer
rendering. However, that class is more picky about line endings
and I currently don't feel like splitting up the generated plaintext
into separate lines again. So, I just throw the whole message at once
at the TextPlain_parse_line function - it happens to work *g*. */
MimeDefClass(MimeInlineTextHTMLAsPlaintext, MimeInlineTextHTMLAsPlaintextClass,
mimeInlineTextHTMLAsPlaintextClass, &MIME_SUPERCLASS);
static int MimeInlineTextHTMLAsPlaintext_parse_line (char *, PRInt32,
MimeObject *);
static int MimeInlineTextHTMLAsPlaintext_parse_begin (MimeObject *obj);
static int MimeInlineTextHTMLAsPlaintext_parse_eof (MimeObject *, PRBool);
static void MimeInlineTextHTMLAsPlaintext_finalize (MimeObject *obj);
static int
MimeInlineTextHTMLAsPlaintextClassInitialize(MimeInlineTextHTMLAsPlaintextClass *clazz)
{
MimeObjectClass *oclass = (MimeObjectClass *) clazz;
NS_ASSERTION(!oclass->class_initialized, "problem with superclass");
oclass->parse_line = MimeInlineTextHTMLAsPlaintext_parse_line;
oclass->parse_begin = MimeInlineTextHTMLAsPlaintext_parse_begin;
oclass->parse_eof = MimeInlineTextHTMLAsPlaintext_parse_eof;
oclass->finalize = MimeInlineTextHTMLAsPlaintext_finalize;
return 0;
}
static int
MimeInlineTextHTMLAsPlaintext_parse_begin (MimeObject *obj)
{
MimeInlineTextHTMLAsPlaintext *textHTMLPlain =
(MimeInlineTextHTMLAsPlaintext *) obj;
textHTMLPlain->complete_buffer = new nsString();
/* Let's just hope that libmime won't have the idea to call begin twice...*/
return ((MimeObjectClass*)&MIME_SUPERCLASS)->parse_begin(obj);
}
static int
MimeInlineTextHTMLAsPlaintext_parse_eof (MimeObject *obj, PRBool abort_p)
{
if (obj->closed_p)
return 0;
/* This is a hack. We need to call parse_eof() of the super class to flush out any buffered data.
We can't call it yet for our direct super class, because it would "close" the output
(write tags such as </pre> and </div>). We'll do that after parsing the buffer. */
int status = ((MimeObjectClass*)&MIME_SUPERCLASS)->superclass->parse_eof(obj, abort_p);
if (status < 0)
return status;
MimeInlineTextHTMLAsPlaintext *textHTMLPlain =
(MimeInlineTextHTMLAsPlaintext *) obj;
if (!textHTMLPlain || !textHTMLPlain->complete_buffer)
{
return 0;
}
nsString& cb = *(textHTMLPlain->complete_buffer);
nsString asPlaintext;
PRUint32 flags = nsIDocumentEncoder::OutputFormatted
| nsIDocumentEncoder::OutputWrap
| nsIDocumentEncoder::OutputFormatFlowed
| nsIDocumentEncoder::OutputLFLineBreak
| nsIDocumentEncoder::OutputNoScriptContent
| nsIDocumentEncoder::OutputNoFramesContent
| nsIDocumentEncoder::OutputBodyOnly;
HTML2Plaintext(cb, asPlaintext, flags, 80);
NS_ConvertUTF16toUTF8 resultCStr(asPlaintext);
/* TODO parse each line independently */
status = ((MimeObjectClass*)&MIME_SUPERCLASS)->parse_line(
resultCStr.BeginWriting(),
resultCStr.Length(),
obj);
cb.Truncate();
if (status < 0)
return status;
/* Second part of the flush hack. Pretend obj wasn't closed yet, so that our super class
gets a chance to write the closing.*/
PRBool save_closed_p = obj->closed_p;
obj->closed_p = PR_FALSE;
status = ((MimeObjectClass*)&MIME_SUPERCLASS)->parse_eof(obj, abort_p);
/* Restore closed_p. */
obj->closed_p = save_closed_p;
return status;
}
void
MimeInlineTextHTMLAsPlaintext_finalize (MimeObject *obj)
{
MimeInlineTextHTMLAsPlaintext *textHTMLPlain =
(MimeInlineTextHTMLAsPlaintext *) obj;
if (textHTMLPlain && textHTMLPlain->complete_buffer)
{
/* If there's content in the buffer, make sure that we output it.
don't care about return codes*/
obj->clazz->parse_eof(obj, PR_FALSE);
delete textHTMLPlain->complete_buffer;
textHTMLPlain->complete_buffer = NULL;
/* It is important to zero the pointer, so we can reliably check for
the validity of it in the other functions. See above. */
}
((MimeObjectClass*)&MIME_SUPERCLASS)->finalize (obj);
}
static int
MimeInlineTextHTMLAsPlaintext_parse_line (char *line, PRInt32 length,
MimeObject *obj)
{
MimeInlineTextHTMLAsPlaintext *textHTMLPlain =
(MimeInlineTextHTMLAsPlaintext *) obj;
if (!textHTMLPlain || !(textHTMLPlain->complete_buffer))
{
#if DEBUG
printf("Can't output: %s\n", line);
#endif
return -1;
}
/*
To convert HTML->TXT syncronously, I need the full source at once,
not line by line (how do you convert "<li>foo\n" to plaintext?).
parse_decoded_buffer claims to give me that, but in fact also gives
me single lines.
It might be theoretically possible to drive this asyncronously, but
I don't know, which odd circumstances might arise and how libmime
will behave then. It's not worth the trouble for me to figure this all out.
*/
nsCString linestr(line, length);
NS_ConvertUTF8toUCS2 line_ucs2(linestr.get());
if (length && line_ucs2.IsEmpty())
line_ucs2.AssignWithConversion(linestr.get());
(textHTMLPlain->complete_buffer)->Append(line_ucs2);
return 0;
}