зеркало из https://github.com/mozilla/gecko-dev.git
108 строки
4.6 KiB
C
108 строки
4.6 KiB
C
/* ATK - Accessibility Toolkit
|
|
* Copyright 2001 Sun Microsystems Inc.
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Library General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library 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
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#ifndef __ATK_STREAMABLE_CONTENT_H__
|
|
#define __ATK_STREAMABLE_CONTENT_H__
|
|
|
|
#include <atk/atkobject.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif /* __cplusplus */
|
|
|
|
#define ATK_TYPE_STREAMABLE_CONTENT (atk_streamable_content_get_type ())
|
|
#define ATK_IS_STREAMABLE_CONTENT(obj) G_TYPE_CHECK_INSTANCE_TYPE ((obj), ATK_TYPE_STREAMABLE_CONTENT)
|
|
#define ATK_STREAMABLE_CONTENT(obj) G_TYPE_CHECK_INSTANCE_CAST ((obj), ATK_TYPE_STREAMABLE_CONTENT, AtkStreamableContent)
|
|
#define ATK_STREAMABLE_CONTENT_GET_IFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), ATK_TYPE_STREAMABLE_CONTENT, AtkStreamableContentIface))
|
|
|
|
#ifndef _TYPEDEF_ATK_STREAMABLE_CONTENT
|
|
#define _TYPEDEF_ATK_STREAMABLE_CONTENT
|
|
typedef struct _AtkStreamableContent AtkStreamableContent;
|
|
#endif
|
|
typedef struct _AtkStreamableContentIface AtkStreamableContentIface;
|
|
|
|
struct _AtkStreamableContentIface
|
|
{
|
|
GTypeInterface parent;
|
|
|
|
/*
|
|
* Get the number of mime types supported by this object
|
|
*/
|
|
gint (* get_n_mime_types) (AtkStreamableContent *streamable);
|
|
/*
|
|
* Gets the specified mime type supported by this object.
|
|
* The mime types are 0-based so the first mime type is
|
|
* at index 0, the second at index 1 and so on. The mime-type
|
|
* at index 0 should be considered the "default" data type for the stream.
|
|
*
|
|
* This assumes that the strings for the mime types are stored in the
|
|
* AtkStreamableContent. Alternatively the G_CONST_RETURN could be removed
|
|
* and the caller would be responsible for calling g_free() on the
|
|
* returned value.
|
|
*/
|
|
G_CONST_RETURN gchar* (* get_mime_type) (AtkStreamableContent *streamable,
|
|
gint i);
|
|
/*
|
|
* One possible implementation for this method is that it constructs the
|
|
* content appropriate for the mime type and then creates a temporary
|
|
* file containing the content, opens the file and then calls
|
|
* g_io_channel_unix_new_fd().
|
|
*/
|
|
GIOChannel* (* get_stream) (AtkStreamableContent *streamable,
|
|
const gchar *mime_type);
|
|
|
|
/*
|
|
* Returns a string representing a URI in IETF standard format
|
|
* (see http://www.ietf.org/rfc/rfc2396.txt) from which the object's content
|
|
* may be streamed in the specified mime-type.
|
|
* If mime_type is NULL, the URI for the default (and possibly only) mime-type is
|
|
* returned.
|
|
*
|
|
* returns NULL if the mime-type is not supported, or if no URI can be
|
|
* constructed. Note that it is possible for get_uri to return NULL but for
|
|
* get_stream to work nonetheless, since not all GIOChannels connect to URIs.
|
|
*/
|
|
G_CONST_RETURN gchar* (* get_uri) (AtkStreamableContent *streamable,
|
|
const gchar *mime_type);
|
|
|
|
|
|
AtkFunction pad1;
|
|
AtkFunction pad2;
|
|
AtkFunction pad3;
|
|
};
|
|
GType atk_streamable_content_get_type (void);
|
|
|
|
gint atk_streamable_content_get_n_mime_types (AtkStreamableContent *streamable);
|
|
|
|
G_CONST_RETURN gchar* atk_streamable_content_get_mime_type (AtkStreamableContent *streamable,
|
|
gint i);
|
|
GIOChannel* atk_streamable_content_get_stream (AtkStreamableContent *streamable,
|
|
const gchar *mime_type);
|
|
|
|
gchar* atk_streamable_content_get_uri (AtkStreamableContent *streamable,
|
|
const gchar *mime_type);
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif /* __cplusplus */
|
|
|
|
|
|
#endif /* __ATK_STREAMABLE_CONTENT_H__ */
|