/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* camelMedium.c : Abstract class for a medium */
/*
*
* Author :
* Bertrand Guiheneuf <bertrand@helixcode.com>
*
* Copyright 1999, 2000 Helix Code, Inc. (http://www.helixcode.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
#include <config.h>
#include "camel-medium.h"
#include <stdio.h>
#include "gmime-content-field.h"
#include "string-utils.h"
#include "gmime-utils.h"
#include "hash-table-utils.h"
#include "camel-simple-data-wrapper.h"
static CamelDataWrapperClass *parent_class = NULL;
/* Returns the class for a CamelMedium */
#define CM_CLASS(so) CAMEL_MEDIUM_CLASS (GTK_OBJECT (so)->klass)
static void add_header (CamelMedium *medium, const gchar *header_name,
const gchar *header_value);
static void remove_header (CamelMedium *medium, const gchar *header_name);
static const gchar *get_header (CamelMedium *medium, const gchar *header_name);
static CamelDataWrapper *get_content_object (CamelMedium *medium);
static void set_content_object (CamelMedium *medium,
CamelDataWrapper *content);
static void finalize (GtkObject *object);
static void
camel_medium_class_init (CamelMediumClass *camel_medium_class)
{
CamelDataWrapperClass *camel_data_wrapper_class =
CAMEL_DATA_WRAPPER_CLASS (camel_medium_class);
GtkObjectClass *gtk_object_class =
GTK_OBJECT_CLASS (camel_data_wrapper_class);
parent_class = gtk_type_class (camel_data_wrapper_get_type ());
/* virtual method definition */
camel_medium_class->add_header = add_header;
camel_medium_class->remove_header = remove_header;
camel_medium_class->get_header = get_header;
camel_medium_class->set_content_object = set_content_object;
camel_medium_class->get_content_object = get_content_object;
gtk_object_class->finalize = finalize;
}
static void
camel_medium_init (gpointer object, gpointer klass)
{
CamelMedium *camel_medium = CAMEL_MEDIUM (object);
camel_medium->headers = g_hash_table_new (g_strcase_hash,
g_strcase_equal);
camel_medium->content = NULL;
}
GtkType
camel_medium_get_type (void)
{
static GtkType camel_medium_type = 0;
if (!camel_medium_type) {
GtkTypeInfo camel_medium_info =
{
"CamelMedium",
sizeof (CamelMedium),
sizeof (CamelMediumClass),
(GtkClassInitFunc) camel_medium_class_init,
(GtkObjectInitFunc) camel_medium_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
camel_medium_type = gtk_type_unique (camel_data_wrapper_get_type (), &camel_medium_info);
}
return camel_medium_type;
}
static void
free_header (gpointer key, gpointer value, gpointer data)
{
g_free (key);
g_free (value);
}
static void
finalize (GtkObject *object)
{
CamelMedium *medium = CAMEL_MEDIUM (object);
if (medium->headers) {
g_hash_table_foreach (medium->headers, free_header, NULL);
g_hash_table_destroy (medium->headers);
}
if (medium->content)
gtk_object_unref (GTK_OBJECT (medium->content));
GTK_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
add_header (CamelMedium *medium, const gchar *header_name,
const gchar *header_value)
{
gpointer old_name;
gpointer old_value;
/* FIXME: This only allows each header to occur once. */
if (g_hash_table_lookup_extended (medium->headers, header_name,
&old_name, &old_value)) {
g_hash_table_remove (medium->headers, old_name);
g_free (old_name);
g_free (old_value);
}
g_hash_table_insert (medium->headers, g_strdup (header_name),
g_strdup (header_value));
}
/**
* camel_medium_add_header:
* @medium: a CamelMedium
* @header_name: name of the header
* @header_value: value of the header
*
* Adds a header to a medium.
*
* FIXME: Where does it add it? We need to be able to prepend and
* append headers, and also be able to insert them relative to other
* headers.
**/
void
camel_medium_add_header (CamelMedium *medium, gchar *header_name,
gchar *header_value)
{
g_return_if_fail (CAMEL_IS_MEDIUM (medium));
g_return_if_fail (header_name != NULL);
g_return_if_fail (header_value != NULL);
CM_CLASS (medium)->add_header (medium, header_name, header_value);
}
static void
remove_header (CamelMedium *medium, const gchar *header_name)
{
gpointer old_name;
gpointer old_value;
/* FIXME: This only allows each header to occur once. */
if (g_hash_table_lookup_extended (medium->headers, header_name,
&old_name, &old_value)) {
g_hash_table_remove (medium->headers, header_name);
g_free (old_name);
g_free (old_value);
}
}
/**
* camel_medium_remove_header:
* @medium: a medium
* @header_name: the name of the header
*
* Removes the named header from the medium.
*
* FIXME: If there are multiple occurrences of the header, which
* gets/get removed?
**/
void
camel_medium_remove_header (CamelMedium *medium, const gchar *header_name)
{
g_return_if_fail (CAMEL_IS_MEDIUM (medium));
g_return_if_fail (header_name != NULL);
CM_CLASS (medium)->remove_header (medium, header_name);
}
static const gchar *
get_header (CamelMedium *medium, const gchar *header_name)
{
gchar *header_value;
header_value = (gchar *)g_hash_table_lookup (medium->headers,
header_name);
return header_value;
}
/**
* camel_medium_get_header:
* @medium: a medium
* @header_name: the name of the header
*
* Returns the value of the named header in the medium, or %NULL if
* it is unset. The caller should not modify or free the data.
*
* FIXME: What if the header occurs more than once?
*
* Return value: the value of the named header, or %NULL
**/
const gchar *
camel_medium_get_header (CamelMedium *medium, const gchar *header_name)
{
g_return_val_if_fail (CAMEL_IS_MEDIUM (medium), NULL);
g_return_val_if_fail (header_name != NULL, NULL);
return CM_CLASS (medium)->get_header (medium, header_name);
}
static CamelDataWrapper *
get_content_object (CamelMedium *medium)
{
return medium->content;
}
/**
* camel_medium_get_content_object:
* @medium: a medium
*
* Returns a data wrapper that represents the content of the medium,
* without its headers.
*
* Return value: the medium's content object.
**/
CamelDataWrapper *
camel_medium_get_content_object (CamelMedium *medium)
{
g_return_val_if_fail (CAMEL_IS_MEDIUM (medium), NULL);
return CM_CLASS (medium)->get_content_object (medium);
}
static void
set_content_object (CamelMedium *medium, CamelDataWrapper *content)
{
if (medium->content)
gtk_object_unref (GTK_OBJECT (medium->content));
gtk_object_ref (GTK_OBJECT (content));
medium->content = content;
}
/**
* camel_medium_set_content_object:
* @medium: a medium
* @content: a data wrapper representing the medium's content
*
* Sets the content of @medium to be @content.
**/
void
camel_medium_set_content_object (CamelMedium *medium,
CamelDataWrapper *content)
{
g_return_if_fail (CAMEL_IS_MEDIUM (medium));
g_return_if_fail (CAMEL_IS_DATA_WRAPPER (content));
CM_CLASS (medium)->set_content_object (medium, content);
}
