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/*
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) version 3.
*
* This program 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with the program; if not, see <http://www.gnu.org/licenses/>
*
*
* Authors:
* Jeffrey Stedfast <fejj@ximian.com>
* Michael Zucchi <notzed@ximian.com>
*
* Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <gtk/gtk.h>
#include "em-html-stream.h"
#define d(x)
static EMSyncStreamClass *parent_class = NULL;
static void
emhs_cleanup (EMHTMLStream *emhs)
{
if (emhs->sync.cancel && emhs->html_stream)
gtk_html_stream_close (
emhs->html_stream, GTK_HTML_STREAM_ERROR);
emhs->html_stream = NULL;
emhs->sync.cancel = TRUE;
g_signal_handler_disconnect (emhs->html, emhs->destroy_id);
g_object_unref (emhs->html);
emhs->html = NULL;
}
static void
emhs_gtkhtml_destroy (GtkHTML *html,
EMHTMLStream *emhs)
{
emhs->sync.cancel = TRUE;
emhs_cleanup (emhs);
}
static ssize_t
emhs_sync_write (CamelStream *stream,
const char *buffer,
size_t n)
{
EMHTMLStream *emhs = EM_HTML_STREAM (stream);
if (emhs->html == NULL)
return -1;
if (emhs->html_stream == NULL)
emhs->html_stream = gtk_html_begin_full (
emhs->html, NULL, NULL, emhs->flags);
gtk_html_stream_write (emhs->html_stream, buffer, n);
return (ssize_t) n;
}
static int
emhs_sync_flush(CamelStream *stream)
{
EMHTMLStream *emhs = (EMHTMLStream *)stream;
if (emhs->html_stream == NULL)
return -1;
gtk_html_flush (emhs->html);
return 0;
}
static int
emhs_sync_close (CamelStream *stream)
{
EMHTMLStream *emhs = (EMHTMLStream *)stream;
if (emhs->html_stream == NULL)
return -1;
gtk_html_stream_close (emhs->html_stream, GTK_HTML_STREAM_OK);
emhs_cleanup (emhs);
return 0;
}
static void
em_html_stream_class_init (EMHTMLStreamClass *class)
{
EMSyncStreamClass *sync_stream_class;
parent_class = (EMSyncStreamClass *)em_sync_stream_get_type();
sync_stream_class = EM_SYNC_STREAM_CLASS (class);
sync_stream_class->sync_write = emhs_sync_write;
sync_stream_class->sync_flush = emhs_sync_flush;
sync_stream_class->sync_close = emhs_sync_close;
}
static void
em_html_stream_init (EMHTMLStream *emhs)
{
}
static void
em_html_stream_finalize (EMHTMLStream *emhs)
{
if (emhs->html_stream) {
/* set 'in finalise' flag */
camel_stream_close (CAMEL_STREAM (emhs));
}
}
CamelType
em_html_stream_get_type (void)
{
static CamelType type = CAMEL_INVALID_TYPE;
if (G_UNLIKELY (type == CAMEL_INVALID_TYPE)) {
type = camel_type_register (
em_sync_stream_get_type(),
"EMHTMLStream",
sizeof (EMHTMLStream),
sizeof (EMHTMLStreamClass),
(CamelObjectClassInitFunc) em_html_stream_class_init,
NULL,
(CamelObjectInitFunc) em_html_stream_init,
(CamelObjectFinalizeFunc) em_html_stream_finalize);
}
return type;
}
/* TODO: Could pass NULL for html_stream, and do a gtk_html_begin
on first data -> less flashing */
CamelStream *
em_html_stream_new (GtkHTML *html,
GtkHTMLStream *html_stream)
{
EMHTMLStream *new;
g_return_val_if_fail (GTK_IS_HTML (html), NULL);
new = EM_HTML_STREAM (camel_object_new (EM_HTML_STREAM_TYPE));
new->html_stream = html_stream;
new->html = g_object_ref (html);
new->flags = 0;
new->destroy_id = g_signal_connect (
html, "destroy",
G_CALLBACK (emhs_gtkhtml_destroy), new);
em_sync_stream_set_buffer_size (&new->sync, 8192);
return CAMEL_STREAM (new);
}
void
em_html_stream_set_flags (EMHTMLStream *emhs, GtkHTMLBeginFlags flags)
{
g_return_if_fail (EM_IS_HTML_STREAM (emhs));
emhs->flags = flags;
}
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