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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* Authors: Michael Zucchi <notzed@ximian.com>
*
* Copyright 2003 Ximian, Inc. (www.ximian.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 Street #330, Boston, MA 02111-1307, USA.
*
*/
/*
Abstract class for formatting mime messages
*/
#ifndef _EM_FORMAT_H
#define _EM_FORMAT_H
#include <glib-object.h>
#include "e-util/e-msgport.h"
struct _CamelStream;
struct _CamelMimePart;
struct _CamelMedium;
struct _CamelSession;
struct _CamelURL;
struct _CamelDataWrapper;
struct _CamelMimeMessage;
struct _CamelCipherValidity;
typedef struct _EMFormat EMFormat;
typedef struct _EMFormatClass EMFormatClass;
typedef struct _EMFormatHandler EMFormatHandler;
typedef struct _EMFormatHeader EMFormatHeader;
typedef void (*EMFormatFunc) (EMFormat *md, struct _CamelStream *stream, struct _CamelMimePart *part, const EMFormatHandler *info);
typedef enum _em_format_mode_t {
EM_FORMAT_NORMAL,
EM_FORMAT_ALLHEADERS,
EM_FORMAT_SOURCE,
} em_format_mode_t;
/* can be subclassed/extended ... */
struct _EMFormatHandler {
char *mime_type;
EMFormatFunc handler;
guint32 flags;
GList *applications; /* gnome vfs short-list of applications, do we care? */
};
/* inline by default */
#define EM_FORMAT_HANDLER_INLINE (1<<0)
/* inline by default, and override content-disposition always */
#define EM_FORMAT_HANDLER_INLINE_DISPOSITION (1<<1)
typedef struct _EMFormatPURI EMFormatPURI;
typedef void (*EMFormatPURIFunc)(EMFormat *md, struct _CamelStream *stream, EMFormatPURI *puri);
struct _EMFormatPURI {
struct _EMFormatPURI *next, *prev;
struct _EMFormat *format;
char *uri; /* will be the location of the part, may be empty */
char *cid; /* will always be set, a fake one created if needed */
char *part_id; /* will always be set, emf->part_id->str for this part */
EMFormatPURIFunc func;
struct _CamelMimePart *part;
unsigned int use_count; /* used by multipart/related to see if it was accessed */
};
/* used to stack pending uri's for visibility (multipart/related) */
struct _EMFormatPURITree {
struct _EMFormatPURITree *next, *prev, *parent;
EDList uri_list;
EDList children;
};
struct _EMFormatHeader {
struct _EMFormatHeader *next, *prev;
guint32 flags; /* E_FORMAT_HEADER_* */
char name[1];
};
#define EM_FORMAT_HEADER_BOLD (1<<0)
#define EM_FORMAT_HEADER_LAST (1<<4) /* reserve 4 slots */
struct _EMFormat {
GObject parent;
struct _EMFormatPrivate *priv;
struct _CamelMimeMessage *message; /* the current message */
struct _CamelFolder *folder;
char *uid;
GString *part_id; /* current part id prefix, for identifying parts directly */
EDList header_list; /* if empty, then all */
struct _CamelSession *session; /* session, used for authentication when required */
struct _CamelURL *base; /* current location (base url) */
const char *snoop_mime_type; /* if we snooped an application/octet-stream type, what we snooped */
/* for validity enveloping */
struct _CamelCipherValidity *valid;
struct _CamelCipherValidity *valid_parent;
/* for forcing inlining */
GHashTable *inline_table;
/* global lookup table for message */
GHashTable *pending_uri_table;
/* visibility tree, also stores every puri permanently */
struct _EMFormatPURITree *pending_uri_tree;
/* current level to search from */
struct _EMFormatPURITree *pending_uri_level;
em_format_mode_t mode; /* source/headers/etc */
char *charset; /* charset override */
char *default_charset; /* charset fallback */
};
struct _EMFormatClass {
GObjectClass parent_class;
GHashTable *type_handlers;
/* lookup handler, default falls back to hashtable above */
const EMFormatHandler *(*find_handler)(EMFormat *, const char *mime_type);
/* start formatting a message */
void (*format_clone)(EMFormat *, struct _CamelFolder *, const char *uid, struct _CamelMimeMessage *, EMFormat *);
/* called to insert prefix material, after format_clone but before format_message */
void (*format_prefix)(EMFormat *, struct _CamelStream *);
/* some internel error/inconsistency */
void (*format_error)(EMFormat *, struct _CamelStream *, const char *msg);
/* use for external structured parts */
void (*format_attachment)(EMFormat *, struct _CamelStream *, struct _CamelMimePart *, const char *mime_type, const struct _EMFormatHandler *info);
/* for any message parts */
void (*format_message)(EMFormat *, struct _CamelStream *, struct _CamelMedium *);
/* use for unparsable content */
void (*format_source)(EMFormat *, struct _CamelStream *, struct _CamelMimePart *);
/* for outputing secure(d) content */
void (*format_secure)(EMFormat *, struct _CamelStream *, struct _CamelMimePart *, struct _CamelCipherValidity *);
/* returns true if the formatter is still busy with pending stuff */
gboolean (*busy)(EMFormat *);
/* signals */
/* complete, alternative to polling busy, for asynchronous work */
void (*complete)(EMFormat *);
};
/* helper entry point */
void em_format_set_session(EMFormat *emf, struct _CamelSession *s);
void em_format_set_mode(EMFormat *emf, em_format_mode_t type);
void em_format_set_charset(EMFormat *emf, const char *charset);
void em_format_set_default_charset(EMFormat *emf, const char *charset);
void em_format_clear_headers(EMFormat *emf); /* also indicates to show all headers */
void em_format_default_headers(EMFormat *emf);
void em_format_add_header(EMFormat *emf, const char *name, guint32 flags);
/* FIXME: Need a 'clone' api to copy details about the current view (inlines etc)
Or maybe it should live with sub-classes? */
int em_format_is_attachment(EMFormat *emf, struct _CamelMimePart *part);
int em_format_is_inline(EMFormat *emf, struct _CamelMimePart *part, const EMFormatHandler *handle);
/* FIXME: not sure about this api */
void em_format_set_inline(EMFormat *emf, struct _CamelMimePart *part, int state);
char *em_format_describe_part(struct _CamelMimePart *part, const char *mimetype);
/* for implementers */
GType em_format_get_type(void);
void em_format_class_add_handler(EMFormatClass *emfc, EMFormatHandler *info);
void em_format_class_remove_handler (EMFormatClass *emfc, const char *mime_type);
#define em_format_find_handler(emf, type) ((EMFormatClass *)G_OBJECT_GET_CLASS(emf))->find_handler((emf), (type))
const EMFormatHandler *em_format_fallback_handler(EMFormat *emf, const char *mime_type);
/* puri is short for pending uri ... really */
EMFormatPURI *em_format_add_puri(EMFormat *emf, size_t size, const char *uri, struct _CamelMimePart *part, EMFormatPURIFunc func);
EMFormatPURI *em_format_find_visible_puri(EMFormat *emf, const char *uri);
EMFormatPURI *em_format_find_puri(EMFormat *emf, const char *uri);
void em_format_clear_puri_tree(EMFormat *emf);
void em_format_push_level(EMFormat *emf);
void em_format_pull_level(EMFormat *emf);
/* clones inline state/view and format, or use to redraw */
#define em_format_format_clone(emf, folder, uid, msg, src) ((EMFormatClass *)G_OBJECT_GET_CLASS(emf))->format_clone((emf), (folder), (uid), (msg), (src))
/* formats a new message */
#define em_format_format(emf, folder, uid, msg) ((EMFormatClass *)G_OBJECT_GET_CLASS(emf))->format_clone((emf), (folder), (uid), (msg), NULL)
#define em_format_format_prefix(emf, stream) ((EMFormatClass *)G_OBJECT_GET_CLASS(emf))->format_prefix((emf), (stream))
#define em_format_redraw(emf) ((EMFormatClass *)G_OBJECT_GET_CLASS(emf))->format_clone((emf), \
((EMFormat *)(emf))->folder, \
((EMFormat *)(emf))->uid, \
((EMFormat *)(emf))->message, \
(emf))
#define em_format_format_error(emf, stream, txt) ((EMFormatClass *)G_OBJECT_GET_CLASS(emf))->format_error((emf), (stream), (txt))
#define em_format_format_attachment(emf, stream, msg, type, info) ((EMFormatClass *)G_OBJECT_GET_CLASS(emf))->format_attachment((emf), (stream), (msg), (type), (info))
#define em_format_format_message(emf, stream, msg) ((EMFormatClass *)G_OBJECT_GET_CLASS(emf))->format_message((emf), (stream), (msg))
#define em_format_format_source(emf, stream, msg) ((EMFormatClass *)G_OBJECT_GET_CLASS(emf))->format_source((emf), (stream), (msg))
#define em_format_format_secure(emf, stream, msg, valid) ((EMFormatClass *)G_OBJECT_GET_CLASS(emf))->format_secure((emf), (stream), (msg), (valid))
#define em_format_busy(emf) ((EMFormatClass *)G_OBJECT_GET_CLASS(emf))->busy((emf))
/* raw content only */
void em_format_format_content(EMFormat *emf, struct _CamelStream *stream, struct _CamelMimePart *part);
/* raw content text parts - should this just be checked/done by above? */
void em_format_format_text(EMFormat *emf, struct _CamelStream *stream, struct _CamelDataWrapper *part);
void em_format_part_as(EMFormat *emf, struct _CamelStream *stream, struct _CamelMimePart *part, const char *mime_type);
void em_format_part(EMFormat *emf, struct _CamelStream *stream, struct _CamelMimePart *part);
#endif /* ! _EM_FORMAT_H */
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