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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 <gtkhtml/gtkhtml.h>
#include <gtkhtml/gtkhtml-stream.h>
#include <gtk/gtk.h>
#include "em-html-stream.h"
#define d(x)
static void em_html_stream_class_init (EMHTMLStreamClass *klass);
static void em_html_stream_init (CamelObject *object);
static void em_html_stream_finalize (CamelObject *object);
static gssize emhs_sync_write(CamelStream *stream, const gchar *buffer, gsize n);
static gint emhs_sync_close(CamelStream *stream);
static gint emhs_sync_flush(CamelStream *stream);
static EMSyncStreamClass *parent_class = NULL;
CamelType
em_html_stream_get_type (void)
{
static CamelType type = CAMEL_INVALID_TYPE;
if (type == CAMEL_INVALID_TYPE) {
parent_class = (EMSyncStreamClass *)em_sync_stream_get_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;
}
static void
em_html_stream_class_init (EMHTMLStreamClass *klass)
{
((EMSyncStreamClass *)klass)->sync_write = emhs_sync_write;
((EMSyncStreamClass *)klass)->sync_flush = emhs_sync_flush;
((EMSyncStreamClass *)klass)->sync_close = emhs_sync_close;
}
static void
em_html_stream_init (CamelObject *object)
{
/*EMHTMLStream *emhs = (EMHTMLStream *)object;*/
}
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
em_html_stream_finalize (CamelObject *object)
{
EMHTMLStream *emhs = (EMHTMLStream *)object;
d(printf("%p: finalising stream\n", object));
if (emhs->html_stream) {
d(printf("%p: html stream still open - error\n", object));
/* set 'in finalise' flag */
camel_stream_close((CamelStream *)emhs);
}
}
static gssize
emhs_sync_write(CamelStream *stream, const gchar *buffer, gsize 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 (gssize) n;
}
static gint
emhs_sync_flush(CamelStream *stream)
{
EMHTMLStream *emhs = (EMHTMLStream *)stream;
if (emhs->html_stream == NULL)
return -1;
gtk_html_flush (emhs->html);
return 0;
}
static gint
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
emhs_gtkhtml_destroy(struct _GtkHTML *html, EMHTMLStream *emhs)
{
d(printf("%p: emhs gtkhtml destroy\n", emhs));
emhs->sync.cancel = TRUE;
emhs_cleanup(emhs);
}
/* TODO: Could pass NULL for html_stream, and do a gtk_html_begin
on first data -> less flashing */
CamelStream *
em_html_stream_new(struct _GtkHTML *html, struct _GtkHTMLStream *html_stream)
{
EMHTMLStream *new;
new = EM_HTML_STREAM (camel_object_new (EM_HTML_STREAM_TYPE));
new->html_stream = html_stream;
new->html = html;
new->flags = 0;
g_object_ref(html);
new->destroy_id = g_signal_connect(html, "destroy", G_CALLBACK(emhs_gtkhtml_destroy), new);
em_sync_stream_set_buffer_size(&new->sync, 8192);
return (CamelStream *)new;
}
void
em_html_stream_set_flags (EMHTMLStream *emhs, GtkHTMLBeginFlags flags)
{
emhs->flags = flags;
}
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