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#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"
#define X_KEY_PLAYCD "XF86AudioPlay"
#define X_KEY_STOPCD "XF86AudioStop"
#define X_KEY_PAUSECD "XF86AudioPause"
#define X_KEY_NEXTSONG "XF86AudioNext"
#define X_KEY_PREVIOUSSONG "XF86AudioPrev"
#define X_KEY_REWIND "XF86AudioRewind"
#define X_KEY_FASTFORWARD "XF86AudioForward"
#define X_KEY_PLAYPAUSE "XF86AudioPlayPause"
#define X_KEY_MEDIA "XF86AudioMedia"
static char *media_keys[] = {
X_KEY_PLAYCD,
X_KEY_STOPCD,
X_KEY_PAUSECD,
X_KEY_NEXTSONG,
X_KEY_PREVIOUSSONG,
X_KEY_REWIND,
X_KEY_FASTFORWARD,
X_KEY_PLAYPAUSE,
X_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;
ecore_x_init(NULL);
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());
_media_key_initialized = 1;
return 0;
}
static void _media_key_fini(void)
{
ecore_x_window_free(win);
ecore_x_shutdown();
_media_key_initialized = 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, X_KEY_PLAYCD)) {
key = MEDIA_KEY_PLAY;
} else if (!strcmp(key_str, X_KEY_STOPCD)) {
key = MEDIA_KEY_STOP;
} else if (!strcmp(key_str, X_KEY_PAUSECD)) {
key = MEDIA_KEY_PAUSE;
} else if (!strcmp(key_str, X_KEY_NEXTSONG)) {
key = MEDIA_KEY_NEXT;
} else if (!strcmp(key_str, X_KEY_PREVIOUSSONG)) {
key = MEDIA_KEY_PREVIOUS;
} else if (!strcmp(key_str, X_KEY_REWIND)) {
key = MEDIA_KEY_REWIND;
} else if (!strcmp(key_str, X_KEY_FASTFORWARD)) {
key = MEDIA_KEY_FASTFORWARD;
} else if (!strcmp(key_str, X_KEY_PLAYPAUSE)) {
key = MEDIA_KEY_PLAYPAUSE;
} else if (!strcmp(key_str, X_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 < 0) {
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;
}
/* release (ungrab) before reserve. */
/* We need to do this because calling utilx_grab_key for OR_EXCLUSIVE multiple times is ignored. */
ret = media_key_release();
if (ret != MEDIA_KEY_ERROR_NONE)
LOGE("failed to release key before reserve");
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;
if (!_media_key_initialized) {
LOGI("media key is not reserved");
return MEDIA_KEY_ERROR_NONE;
}
ret = _ungrab_media_key();
if (ret) {
LOGE("release media key error [%d]", ret);
return MEDIA_KEY_ERROR_OPERATION_FAILED;
}
_media_key_fini();
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;
}
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