1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
/* 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__ */
|
