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 "NapiAudioStreamVolumeChangeCallback"
17 #endif
18
19 #include "js_native_api.h"
20 #include "napi_audio_stream_volume_change_callback.h"
21 #include "napi_audio_enum.h"
22 #include "napi_audio_error.h"
23 #include "napi_param_utils.h"
24 #include "audio_manager_log.h"
25
26 using namespace std;
27 namespace OHOS {
28 namespace AudioStandard {
NapiAudioStreamVolumeChangeCallback(napi_env env)29 NapiAudioStreamVolumeChangeCallback::NapiAudioStreamVolumeChangeCallback(napi_env env)
30 :env_(env)
31 {
32 AUDIO_DEBUG_LOG("instance create");
33 }
34
~NapiAudioStreamVolumeChangeCallback()35 NapiAudioStreamVolumeChangeCallback::~NapiAudioStreamVolumeChangeCallback()
36 {
37 AUDIO_DEBUG_LOG("instance destroy");
38 }
39
CreateStreamVolumeChangeTsfn(napi_env env)40 void NapiAudioStreamVolumeChangeCallback::CreateStreamVolumeChangeTsfn(napi_env env)
41 {
42 regVolumeTsfn_ = true;
43 napi_value cbName;
44 std::string callbackName = "streamVolumeChange";
45 napi_create_string_utf8(env, callbackName.c_str(), callbackName.length(), &cbName);
46 napi_add_env_cleanup_hook(env, CleanUp, this);
47 napi_create_threadsafe_function(env, nullptr, nullptr, cbName, 0, 1, this,
48 StreamVolumeChangeTsfnFinalize, nullptr, SafeJsCallbackStreamVolumeChangeWork, &amVolEntTsfn_);
49 }
50
GetVolumeTsfnFlag()51 bool NapiAudioStreamVolumeChangeCallback::GetVolumeTsfnFlag()
52 {
53 return regVolumeTsfn_;
54 }
55
GetTsfn()56 napi_threadsafe_function NapiAudioStreamVolumeChangeCallback::GetTsfn()
57 {
58 std::lock_guard<std::mutex> lock(mutex_);
59 return amVolEntTsfn_;
60 }
61
OnStreamVolumeChange(StreamVolumeEvent volumeEvent)62 void NapiAudioStreamVolumeChangeCallback::OnStreamVolumeChange(StreamVolumeEvent volumeEvent)
63 {
64 std::lock_guard<std::mutex> lock(mutex_);
65 AUDIO_PRERELEASE_LOGI("OnStreamVolumeChange is called streamUsage=%{public}d, volumeLevel=%{public}d,"
66 "isUpdateUi=%{public}d", volumeEvent.streamUsage, volumeEvent.volume, volumeEvent.updateUi);
67 CHECK_AND_RETURN_LOG(audioStreamVolumeChangeCallback_ != nullptr,
68 "NapiAudioStreamVolumeChangeCallback:No JS callback registered return");
69 std::unique_ptr<AudioStreamVolumeChangeJsCallback> cb = std::make_unique<AudioStreamVolumeChangeJsCallback>();
70 CHECK_AND_RETURN_LOG(cb != nullptr, "No memory");
71 cb->callback = audioStreamVolumeChangeCallback_;
72 cb->callbackName = AUDIO_STREAM_VOLUME_CHANGE_CALLBACK_NAME;
73 cb->volumeEvent.streamUsage = volumeEvent.streamUsage;
74 cb->volumeEvent.volume = volumeEvent.volume;
75 cb->volumeEvent.updateUi = volumeEvent.updateUi;
76
77 return OnJsCallbackStreamVolumeChange(cb);
78 }
79
SaveCallbackReference(const std::string & callbackName,napi_value args)80 void NapiAudioStreamVolumeChangeCallback::SaveCallbackReference(const std::string &callbackName, napi_value args)
81 {
82 std::lock_guard<std::mutex> lock(mutex_);
83 napi_ref callback = nullptr;
84 const int32_t refCount = 1;
85 napi_status status = napi_create_reference(env_, args, refCount, &callback);
86 CHECK_AND_RETURN_LOG(status == napi_ok && callback != nullptr,
87 "NapiAudioStreamVolumeChangeCallback: creating reference for callback fail");
88 callback_ = callback;
89 std::shared_ptr<AutoRef> cb = std::make_shared<AutoRef>(env_, callback);
90 if (callbackName == AUDIO_STREAM_VOLUME_CHANGE_CALLBACK_NAME) {
91 audioStreamVolumeChangeCallback_ = cb;
92 } else {
93 AUDIO_ERR_LOG("NapiAudioStreamVolumeChangeCallback: Unknown callback type: %{public}s", callbackName.c_str());
94 }
95 }
96
SafeJsCallbackStreamVolumeChangeWork(napi_env env,napi_value js_cb,void * context,void * data)97 void NapiAudioStreamVolumeChangeCallback::SafeJsCallbackStreamVolumeChangeWork(
98 napi_env env, napi_value js_cb, void *context, void *data)
99 {
100 AudioStreamVolumeChangeJsCallback *event = reinterpret_cast<AudioStreamVolumeChangeJsCallback *>(data);
101 CHECK_AND_RETURN_LOG((event != nullptr) && (event->callback != nullptr),
102 "OnJsCallbackStreamVolumeChange: no memory");
103 std::shared_ptr<AudioStreamVolumeChangeJsCallback> safeContext(
104 static_cast<AudioStreamVolumeChangeJsCallback*>(event),
105 [](AudioStreamVolumeChangeJsCallback *ptr) {
106 delete ptr;
107 });
108 std::string request = event->callbackName;
109 napi_ref callback = event->callback->cb_;
110 napi_handle_scope scope = nullptr;
111 napi_open_handle_scope(env, &scope);
112 CHECK_AND_RETURN_LOG(scope != nullptr, "scope is nullptr");
113
114 do {
115 napi_value jsCallback = nullptr;
116 napi_status nstatus = napi_get_reference_value(env, callback, &jsCallback);
117 CHECK_AND_BREAK_LOG(nstatus == napi_ok && jsCallback != nullptr, "%{public}s get reference value fail",
118 request.c_str());
119 napi_value args[ARGS_ONE] = { nullptr };
120 NapiParamUtils::SetValueStreamVolumeEvent(env, event->volumeEvent, args[PARAM0]);
121 CHECK_AND_BREAK_LOG(nstatus == napi_ok && args[PARAM0] != nullptr,
122 "%{public}s fail to create volumeChange callback", request.c_str());
123
124 const size_t argCount = ARGS_ONE;
125 napi_value result = nullptr;
126 nstatus = napi_call_function(env, nullptr, jsCallback, argCount, args, &result);
127 CHECK_AND_BREAK_LOG(nstatus == napi_ok, "%{public}s fail to call volumeChange callback",
128 request.c_str());
129 } while (0);
130 napi_close_handle_scope(env, scope);
131 }
132
StreamVolumeChangeTsfnFinalize(napi_env env,void * data,void * hint)133 void NapiAudioStreamVolumeChangeCallback::StreamVolumeChangeTsfnFinalize(napi_env env, void *data, void *hint)
134 {
135 AUDIO_INFO_LOG("StreamVolumeChangeTsfnFinalize: CleanUp is removed.");
136 NapiAudioStreamVolumeChangeCallback *context = reinterpret_cast<NapiAudioStreamVolumeChangeCallback*>(data);
137 napi_remove_env_cleanup_hook(env, NapiAudioStreamVolumeChangeCallback::CleanUp, context);
138 if (context->GetTsfn() != nullptr) {
139 AUDIO_INFO_LOG("StreamVolumeChangeTsfnFinalize: context is released.");
140 delete context;
141 }
142 }
143
CleanUp(void * data)144 void NapiAudioStreamVolumeChangeCallback::CleanUp(void *data)
145 {
146 NapiAudioStreamVolumeChangeCallback *context = reinterpret_cast<NapiAudioStreamVolumeChangeCallback*>(data);
147 napi_threadsafe_function tsfn = context->GetTsfn();
148 std::unique_lock<std::mutex> lock(context->mutex_);
149 context->amVolEntTsfn_ = nullptr;
150 lock.unlock();
151 AUDIO_INFO_LOG("CleanUp: safe thread resource release.");
152 napi_release_threadsafe_function(tsfn, napi_tsfn_abort);
153 }
154
OnJsCallbackStreamVolumeChange(std::unique_ptr<AudioStreamVolumeChangeJsCallback> & jsCb)155 void NapiAudioStreamVolumeChangeCallback::OnJsCallbackStreamVolumeChange(
156 std::unique_ptr<AudioStreamVolumeChangeJsCallback> &jsCb)
157 {
158 if (jsCb.get() == nullptr) {
159 AUDIO_ERR_LOG("OnJsCallbackStreamVolumeChange: jsCb.get() is null");
160 return;
161 }
162
163 AudioStreamVolumeChangeJsCallback *event = jsCb.release();
164 CHECK_AND_RETURN_LOG((event != nullptr) && (event->callback != nullptr), "event is nullptr.");
165 if (amVolEntTsfn_ == nullptr) {
166 AUDIO_INFO_LOG("OnJsCallbackStreamVolumeChange: tsfn nullptr.");
167 return;
168 }
169 napi_acquire_threadsafe_function(amVolEntTsfn_);
170 napi_call_threadsafe_function(amVolEntTsfn_, event, napi_tsfn_blocking);
171 }
172
ContainSameJsCallback(napi_value args)173 bool NapiAudioStreamVolumeChangeCallback::ContainSameJsCallback(napi_value args)
174 {
175 bool isEquals = false;
176 napi_value copyValue = nullptr;
177
178 napi_get_reference_value(env_, callback_, ©Value);
179 CHECK_AND_RETURN_RET_LOG(args != nullptr, false, "args is nullptr");
180 CHECK_AND_RETURN_RET_LOG(napi_strict_equals(env_, copyValue, args, &isEquals) == napi_ok, false,
181 "Get napi_strict_equals failed");
182
183 return isEquals;
184 }
185 } // namespace AudioStandard
186 } // namespace OHOS