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
|
/*
* AT-SPI - Assistive Technology Service Provider Interface
* (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
*
* Copyright 2001, 2002 Sun Microsystems Inc.,
* Copyright 2001, 2002 Ximian, 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 _SPI_LISTENER_H_
#define _SPI_LISTENER_H_
#include <cspi/spi-impl.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* Structure used to encapsulate event information
*/
typedef struct {
const char *type;
Accessible *source;
long detail1;
long detail2;
} AccessibleEvent;
/**
*AccessibleDeviceEventType:
*@SPI_KEY_PRESSED:
*@SPI_KEY_RELEASED:
*@SPI_BUTTON_PRESSED:
*@SPI_BUTTON_RELEASED:
*
*The type of an AccessibleDeviceEvent.
**/
typedef enum {
SPI_KEY_PRESSED = 1<<0,
SPI_KEY_RELEASED = 1<<1,
SPI_BUTTON_PRESSED = 1<<2,
SPI_BUTTON_RELEASED = 1<<3
} AccessibleDeviceEventType;
/**
*AccessibleKeyEventType:
*
*This is a synonym for AccessibleDeviceEventType
**/
typedef AccessibleDeviceEventType AccessibleKeyEventType;
typedef struct {
long keyID;
short keycode;
char * keystring;
long timestamp;
AccessibleDeviceEventType type;
unsigned short modifiers;
SPIBoolean is_text;
} AccessibleDeviceEvent;
typedef AccessibleDeviceEvent AccessibleKeystroke;
/*
* Function prototype typedefs for Event Listener Callbacks.
* (see libspi/accessibleeventlistener.h for definition of SpiVoidEventListenerCB).
*
* usage: signatures should be
* void (*AccessibleEventListenerCB) (AccessibleEvent *event);
*
* SPIBoolean (*AccessibleKeystrokeListenerCB) (AccessibleKeystrokeEvent *Event);
* Note that AccessibleKeystrokeListeners may consume the event received
* if one of their callbacks returns TRUE (see SPI_registerAccessibleKeystrokeListener)
*/
typedef void (*AccessibleEventListenerCB) (const AccessibleEvent *event,
void *user_data);
typedef SPIBoolean (*AccessibleKeystrokeListenerCB) (const AccessibleKeystroke *stroke,
void *user_data);
typedef SPIBoolean (*AccessibleDeviceListenerCB) (const AccessibleDeviceEvent *stroke,
void *user_data);
#ifdef __cplusplus
}
#endif
#endif
|
