1 /*
2 * Copyright (c) 2025 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15 #ifndef LOG_TAG
16 #define LOG_TAG "NapiAudioSessionStateCallback"
17 #endif
18 #include <thread>
19 #include "js_native_api.h"
20 #include "napi_audio_session_state_callback.h"
21 #include "napi_param_utils.h"
22 #include "napi/native_api.h"
23
24 namespace OHOS {
25 namespace AudioStandard {
NapiAudioSessionStateCallback(napi_env env)26 NapiAudioSessionStateCallback::NapiAudioSessionStateCallback(napi_env env)
27 :env_(env)
28 {
29 AUDIO_DEBUG_LOG("NapiAudioSessionStateCallback::Constructor");
30 }
31
~NapiAudioSessionStateCallback()32 NapiAudioSessionStateCallback::~NapiAudioSessionStateCallback()
33 {
34 if (regAmSessionStateChgTsfn_) {
35 napi_release_threadsafe_function(amSessionStateChgTsfn_, napi_tsfn_abort);
36 }
37 AUDIO_DEBUG_LOG("NapiAudioSessionStateCallback::Destructor");
38 }
39
OnAudioSessionStateChanged(const AudioSessionStateChangedEvent & stateEvent)40 void NapiAudioSessionStateCallback::OnAudioSessionStateChanged(const AudioSessionStateChangedEvent &stateEvent)
41 {
42 AUDIO_INFO_LOG("OnAudioSessionStateChanged is called AudioSessionStateChangedEvent=%{public}d",
43 stateEvent.stateChangeHint);
44 CHECK_AND_RETURN_LOG(audioSessionStateJsCallback_ != nullptr,
45 "OnAudioSessionStateChanged:No JS callback registered return");
46 std::unique_ptr<AudioSessionStateJsCallback> cb = std::make_unique<AudioSessionStateJsCallback>();
47 CHECK_AND_RETURN_LOG(cb != nullptr, "No memory");
48 cb->callback = audioSessionStateJsCallback_;
49 cb->callbackName = AUDIO_SESSION_STATE_CALLBACK_NAME;
50 cb->audioSessionStateEvent.stateChangeHint = stateEvent.stateChangeHint;
51
52 return OnJsCallbackAudioSessionState(cb);
53 }
54
SaveCallbackReference(napi_value args)55 void NapiAudioSessionStateCallback::SaveCallbackReference(napi_value args)
56 {
57 std::lock_guard<std::mutex> lock(mutex_);
58 napi_ref callback = nullptr;
59 const int32_t refCount = 1;
60 napi_status status = napi_create_reference(env_, args, refCount, &callback);
61 CHECK_AND_RETURN_LOG(status == napi_ok && callback != nullptr,
62 "NapiAudioSessionStateCallback: creating reference for callback fail");
63 callback_ = callback;
64 std::shared_ptr<AutoRef> cb = std::make_shared<AutoRef>(env_, callback);
65 audioSessionStateJsCallback_ = cb;
66 }
67
CreateAudioSessionStateTsfn(napi_env env)68 void NapiAudioSessionStateCallback::CreateAudioSessionStateTsfn(napi_env env)
69 {
70 regAmSessionStateChgTsfn_ = true;
71 std::string callbackName = "audioSessionStateChanged";
72 napi_value cbName;
73 napi_create_string_utf8(env, callbackName.c_str(), callbackName.length(), &cbName);
74 napi_create_threadsafe_function(env, nullptr, nullptr, cbName, 0, 1, nullptr, AudioSessionStateTsfnFinalize,
75 nullptr, SafeJsCallbackAudioSessionStateWork, &amSessionStateChgTsfn_);
76 }
77
GetAudioSessionStateTsfnFlag() const78 bool NapiAudioSessionStateCallback::GetAudioSessionStateTsfnFlag() const
79 {
80 return regAmSessionStateChgTsfn_;
81 }
82
SafeJsCallbackAudioSessionStateWork(napi_env env,napi_value js_cb,void * context,void * data)83 void NapiAudioSessionStateCallback::SafeJsCallbackAudioSessionStateWork(
84 napi_env env, napi_value js_cb, void *context, void *data)
85 {
86 AudioSessionStateJsCallback *event = reinterpret_cast<AudioSessionStateJsCallback *>(data);
87 CHECK_AND_RETURN_LOG((event != nullptr) && (event->callback != nullptr),
88 "OnJsCallbackAudioSessionState: no memory");
89
90 std::string request = event->callbackName;
91 napi_ref callback = event->callback->cb_;
92 napi_handle_scope scope = nullptr;
93 napi_open_handle_scope(env, &scope);
94 CHECK_AND_RETURN_LOG(scope != nullptr, "scope is nullptr");
95 AUDIO_INFO_LOG("SafeJsCallbackAudioSessionStateWork: safe js callback working.");
96 do {
97 napi_value jsCallback = nullptr;
98 napi_status nstatus = napi_get_reference_value(env, callback, &jsCallback);
99 CHECK_AND_BREAK_LOG(nstatus == napi_ok && jsCallback != nullptr, "%{public}s get reference value fail",
100 request.c_str());
101
102 napi_value args[ARGS_ONE] = { nullptr };
103 napi_create_object(env, &args[PARAM0]);
104 NapiParamUtils::SetValueInt32(env, "stateChangeHint",
105 static_cast<int32_t>(event->audioSessionStateEvent.stateChangeHint), args[PARAM0]);
106 CHECK_AND_BREAK_LOG(nstatus == napi_ok && args[PARAM0] != nullptr,
107 "%{public}s fail to stateChangeHint callback", request.c_str());
108
109 const size_t argCount = ARGS_ONE;
110 napi_value result = nullptr;
111 nstatus = napi_call_function(env, nullptr, jsCallback, argCount, args, &result);
112 CHECK_AND_BREAK_LOG(nstatus == napi_ok, "%{public}s fail to call SetaudioSessionState callback",
113 request.c_str());
114 } while (0);
115 napi_close_handle_scope(env, scope);
116 }
117
AudioSessionStateTsfnFinalize(napi_env env,void * data,void * hint)118 void NapiAudioSessionStateCallback::AudioSessionStateTsfnFinalize(napi_env env, void *data, void *hint)
119 {
120 AUDIO_INFO_LOG("AudioSessionStateTsfnFinalize: safe thread resource release.");
121 }
122
OnJsCallbackAudioSessionState(std::unique_ptr<AudioSessionStateJsCallback> & jsCb)123 void NapiAudioSessionStateCallback::OnJsCallbackAudioSessionState(std::unique_ptr<AudioSessionStateJsCallback> &jsCb)
124 {
125 if (jsCb.get() == nullptr) {
126 AUDIO_ERR_LOG("NapiAudioSessionStateCallback: OnJsCallbackAudioSessionState: jsCb.get() is null");
127 return;
128 }
129
130 AudioSessionStateJsCallback *event = jsCb.release();
131 CHECK_AND_RETURN_LOG((event != nullptr) && (event->callback != nullptr), "event is nullptr.");
132
133 napi_acquire_threadsafe_function(amSessionStateChgTsfn_);
134 napi_call_threadsafe_function(amSessionStateChgTsfn_, event, napi_tsfn_blocking);
135 }
136
ContainSameJsCallback(napi_value args)137 bool NapiAudioSessionStateCallback::ContainSameJsCallback(napi_value args)
138 {
139 bool isEquals = false;
140 napi_value copyValue = nullptr;
141
142 napi_get_reference_value(env_, callback_, ©Value);
143 CHECK_AND_RETURN_RET_LOG(args != nullptr, false, "args is nullptr");
144 CHECK_AND_RETURN_RET_LOG(napi_strict_equals(env_, copyValue, args, &isEquals) == napi_ok, false,
145 "Get napi_strict_equals failed");
146
147 return isEquals;
148 }
149 } // namespace AudioStandard
150 } // namespace OHOS