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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* html-stream.c: A CamelStream class that feeds data into a GtkHTML widget
*
* Authors:
* Miguel de Icaza (miguel@helixcode.com)
* Bertrand Guiheneuf (bg@aful.org)
*
* (C) 2000 Helix Code, Inc.
*/
#include <config.h>
#include "html-stream.h"
#include "e-util/e-util.h"
#define PARENT_TYPE camel_stream_get_type ()
static GtkObjectClass *html_stream_parent_class;
/*
* CamelStream::read method
*
* Return 0 bytes read, as this is a write-only stream
*/
static gint
html_stream_read (CamelStream *stream, gchar *buffer, gint n)
{
return 0;
}
/*
* CamelStream::write method
*
* Writes @buffer into the HTML widget
*/
static gint
html_stream_write (CamelStream *stream, const gchar *buffer, gint n)
{
HTMLStream *html_stream = HTML_STREAM (stream);
if (html_stream->gtk_html_stream)
gtk_html_write (html_stream->gtk_html, html_stream->gtk_html_stream, buffer, n);
else
n = 0;
return n;
}
/*
* CamelStream::Reset method
*
* Reset the html widget that is, prepare it
* for a new display
*/
static void
html_stream_reset (CamelStream *stream)
{
HTMLStream *html_stream = HTML_STREAM (stream);
if (html_stream->gtk_html_stream)
gtk_html_end (html_stream->gtk_html, html_stream->gtk_html_stream, GTK_HTML_STREAM_OK);
html_stream->gtk_html_stream = gtk_html_begin (html_stream->gtk_html, "");
}
/*
* CamelStream::available method
*
* Return 0, as this is only a write-stream
*/
static gint
html_stream_available (CamelStream *stream)
{
return 0;
}
/*
* CamelStream::eos method.
*
* We just return TRUE, as this is not a read-stream
*/
static gboolean
html_stream_eos (CamelStream *stream)
{
return TRUE;
}
static void
html_stream_close (CamelStream *stream)
{
HTMLStream *html_stream = HTML_STREAM (stream);
gtk_html_end (html_stream->gtk_html, html_stream->gtk_html_stream, GTK_HTML_STREAM_OK);
html_stream->gtk_html_stream = NULL;
}
static void
html_stream_destroy (GtkObject *object)
{
}
static void
html_stream_class_init (GtkObjectClass *object_class)
{
CamelStreamClass *stream_class = (CamelStreamClass *) object_class;
html_stream_parent_class = gtk_type_class (PARENT_TYPE);
object_class->destroy = html_stream_destroy;
stream_class->read = html_stream_read;
stream_class->write = html_stream_write;
stream_class->reset = html_stream_reset;
stream_class->available = html_stream_available;
stream_class->eos = html_stream_eos;
stream_class->close = html_stream_close;
}
CamelStream *
html_stream_new (GtkHTML *html)
{
HTMLStream *html_stream;
g_return_val_if_fail (html != NULL, NULL);
g_return_val_if_fail (GTK_IS_HTML (html), NULL);
html_stream = gtk_type_new (html_stream_get_type ());
gtk_object_ref (GTK_OBJECT (html));
html_stream->gtk_html_stream = gtk_html_begin (html, "");
html_stream->gtk_html = html;
return CAMEL_STREAM (html_stream);
}
E_MAKE_TYPE (html_stream, "HTMLStream", HTMLStream, html_stream_class_init, NULL, PARENT_TYPE);
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