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
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
|
#include <Ecore_X.h>
#include <Evas.h>
#include <Ecore.h>
#include <Ecore_Input.h>
#include <unistd.h>
#include <media_key.h>
#include <string.h>
#include <utilX.h>
#include <dlog.h>
#ifdef LOG_TAG
#undef LOG_TAG
#endif
#define LOG_TAG "CAPI_SYSTEM_MEDIA_KEY"
static char *media_keys[] = {
KEY_PLAYCD,
KEY_STOPCD,
KEY_PAUSECD,
KEY_NEXTSONG,
KEY_PREVIOUSSONG,
KEY_REWIND,
KEY_FASTFORWARD,
KEY_PLAYPAUSE,
KEY_MEDIA,
NULL
};
static void (*_media_key_event_cb)(media_key_e key, media_key_event_e status, void* user_data) = NULL;
static void *_media_key_data = NULL;
static int _media_key_initialized = 0;
static Ecore_Event_Handler *media_key_up;
static Ecore_Event_Handler *media_key_down;
static Ecore_X_Window win;
static int _media_key_init(void)
{
if (_media_key_initialized)
return 0;
win = ecore_x_window_input_new(ecore_x_window_root_first_get(), 0, 0, 1, 1);
if (!win) {
LOGE("failed to create input window");
return -1;
}
ecore_x_icccm_title_set(win, "media key receiver");
ecore_x_netwm_name_set(win, "media key receiver");
ecore_x_netwm_pid_set(win, getpid());
ecore_x_window_show(win);
_media_key_initialized = 1;
return 0;
}
static void _media_key_handler(const char *key_str, media_key_e event)
{
media_key_e key;
key = MEDIA_KEY_UNKNOWN;
if (!strcmp(key_str, KEY_PLAYCD)) {
key = MEDIA_KEY_PLAY;
} else if (!strcmp(key_str, KEY_STOPCD)) {
key = MEDIA_KEY_STOP;
} else if (!strcmp(key_str, KEY_PAUSECD)) {
key = MEDIA_KEY_PAUSE;
} else if (!strcmp(key_str, KEY_NEXTSONG)) {
key = MEDIA_KEY_NEXT;
} else if (!strcmp(key_str, KEY_PREVIOUSSONG)) {
key = MEDIA_KEY_PREVIOUS;
} else if (!strcmp(key_str, KEY_REWIND)) {
key = MEDIA_KEY_REWIND;
} else if (!strcmp(key_str, KEY_FASTFORWARD)) {
key = MEDIA_KEY_FASTFORWARD;
} else if (!strcmp(key_str, KEY_PLAYPAUSE)) {
key = MEDIA_KEY_PLAYPAUSE;
} else if (!strcmp(key_str, KEY_MEDIA)) {
key = MEDIA_KEY_MEDIA;
}
if (_media_key_event_cb && key != MEDIA_KEY_UNKNOWN)
_media_key_event_cb(key, event, _media_key_data);
}
static Eina_Bool _media_key_press_cb(void *data, int type, void *event)
{
Evas_Event_Key_Down *ev;
ev = event;
if (!ev) {
LOGE("Invalid event object");
return ECORE_CALLBACK_RENEW;
}
_media_key_handler(ev->keyname, MEDIA_KEY_STATUS_PRESSED);
return ECORE_CALLBACK_RENEW;
}
static Eina_Bool _media_key_release_cb(void *data, int type, void *event)
{
Evas_Event_Key_Up *ev;
ev = event;
if (!ev) {
LOGE("Invalid event object");
return ECORE_CALLBACK_RENEW;
}
_media_key_handler(ev->keyname, MEDIA_KEY_STATUS_RELEASED);
return ECORE_CALLBACK_RENEW;
}
static int _grab_media_key(void)
{
int i;
int ret;
for (i = 0; media_keys[i]; i++) {
ret = utilx_grab_key(ecore_x_display_get(), win, media_keys[i], OR_EXCLUSIVE_GRAB);
if (ret) {
LOGE("failed to grab key: %s", media_keys[i]);
for (i = i - 1; i >= 0; i--)
utilx_ungrab_key(ecore_x_display_get(), win, media_keys[i]);
return ret;
}
}
return 0;
}
static int _ungrab_media_key(void)
{
int i;
int ret;
for (i = 0; media_keys[i]; i++) {
ret = utilx_ungrab_key(ecore_x_display_get(), win, media_keys[i]);
if (ret)
LOGE("failed to ungrab key: %s", media_keys[i]);
}
return 0;
}
int media_key_reserve(media_key_event_cb callback, void* user_data)
{
int ret;
if (callback == NULL) {
LOGE("[%s] media_key_event_cb callback is NULL", __FUNCTION__);
return MEDIA_KEY_ERROR_INVALID_PARAMETER;
}
if (!_media_key_initialized) {
if (_media_key_init())
return MEDIA_KEY_ERROR_OPERATION_FAILED;
}
ret = _grab_media_key();
if (ret) {
LOGE("reserve media key error [%d]", ret);
return MEDIA_KEY_ERROR_OPERATION_FAILED;
}
media_key_down = ecore_event_handler_add(ECORE_EVENT_KEY_DOWN, _media_key_press_cb, NULL);
if (!media_key_down)
LOGE("failed to register key down event handler");
media_key_up = ecore_event_handler_add(ECORE_EVENT_KEY_UP, _media_key_release_cb, NULL);
if (!media_key_down)
LOGE("failed to register key up event handler");
_media_key_event_cb = callback;
_media_key_data = user_data;
return MEDIA_KEY_ERROR_NONE;
}
int media_key_release(void)
{
int ret;
ret = _ungrab_media_key();
if (ret) {
LOGE("release media key error [%d]", ret);
return MEDIA_KEY_ERROR_OPERATION_FAILED;
}
if (media_key_down) {
ecore_event_handler_del(media_key_down);
media_key_down = NULL;
}
if (media_key_up) {
ecore_event_handler_del(media_key_up);
media_key_up = NULL;
}
_media_key_event_cb = NULL;
_media_key_data = NULL;
return MEDIA_KEY_ERROR_NONE;
}
|
