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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 <glib/gi18n-lib.h>
#include "em-html-stream.h"
#define d(x)
G_DEFINE_TYPE (EMHTMLStream, em_html_stream, EM_TYPE_SYNC_STREAM)
static void
html_stream_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
html_stream_gtkhtml_destroy (GtkHTML *html,
EMHTMLStream *emhs)
{
emhs->sync.cancel = TRUE;
html_stream_cleanup (emhs);
}
static void
html_stream_dispose (GObject *object)
{
EMHTMLStream *emhs = EM_HTML_STREAM (object);
if (emhs->html_stream) {
/* set 'in finalize' flag */
camel_stream_close (CAMEL_STREAM (emhs), NULL, NULL);
}
}
static gssize
html_stream_sync_write (CamelStream *stream,
const gchar *buffer,
gsize n,
GError **error)
{
EMHTMLStream *emhs = EM_HTML_STREAM (stream);
if (emhs->html == NULL) {
g_set_error (
error, CAMEL_ERROR, CAMEL_ERROR_GENERIC,
_("No HTML stream available"));
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
html_stream_sync_flush (CamelStream *stream,
GError **error)
{
EMHTMLStream *emhs = (EMHTMLStream *) stream;
if (emhs->html_stream == NULL) {
g_set_error (
error, CAMEL_ERROR, CAMEL_ERROR_GENERIC,
_("No HTML stream available"));
return -1;
}
gtk_html_flush (emhs->html);
return 0;
}
static gint
html_stream_sync_close (CamelStream *stream,
GError **error)
{
EMHTMLStream *emhs = (EMHTMLStream *) stream;
if (emhs->html_stream == NULL) {
g_set_error (
error, CAMEL_ERROR, CAMEL_ERROR_GENERIC,
_("No HTML stream available"));
return -1;
}
gtk_html_stream_close (emhs->html_stream, GTK_HTML_STREAM_OK);
html_stream_cleanup (emhs);
return 0;
}
static void
em_html_stream_class_init (EMHTMLStreamClass *class)
{
GObjectClass *object_class;
EMSyncStreamClass *sync_stream_class;
object_class = G_OBJECT_CLASS (class);
object_class->dispose = html_stream_dispose;
sync_stream_class = EM_SYNC_STREAM_CLASS (class);
sync_stream_class->sync_write = html_stream_sync_write;
sync_stream_class->sync_flush = html_stream_sync_flush;
sync_stream_class->sync_close = html_stream_sync_close;
}
static void
em_html_stream_init (EMHTMLStream *emhs)
{
}
/* 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 = g_object_new (EM_TYPE_HTML_STREAM, NULL);
new->html_stream = html_stream;
new->html = g_object_ref (html);
new->flags = 0;
new->destroy_id = g_signal_connect (
html, "destroy",
G_CALLBACK (html_stream_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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