mirror of
https://github.com/openharmony/base_location.git
synced 2026-08-24 22:31:51 -04:00
liu-binjun
104 lines
3.2 KiB
C++
104 lines
3.2 KiB
C++
/*
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* Copyright (C) 2022 Huawei Device Co., Ltd.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef CALLBACK_MANAGER_H
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#define CALLBACK_MANAGER_H
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#include <unistd.h>
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#include "napi_util.h"
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#include "location_napi_event.h"
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namespace OHOS {
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namespace Location {
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template <typename T>
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class CallbackManager {
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public:
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CallbackManager() = default;
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virtual ~CallbackManager() = default;
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bool IsCallbackInMap(napi_env& env, napi_value& handler);
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void AddCallback(napi_env& env, napi_ref& handlerRef, sptr<T>& callback);
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void DeleteCallback(napi_env& env, napi_value& handler);
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sptr<T> GetCallbackPtr(napi_env& env, napi_value& handler);
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private:
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std::map<napi_env, std::map<napi_ref, sptr<T>>> callbackMap_;
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};
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template <typename T>
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bool CallbackManager<T>::IsCallbackInMap(napi_env& env, napi_value& handler)
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{
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auto iter = callbackMap_.find(env);
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if (iter == callbackMap_.end()) {
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return false;
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}
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for (auto innerIter = iter->second.begin(); innerIter != iter->second.end(); innerIter++) {
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auto ref = innerIter->first;
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if (IsCallbackEquals(env, handler, ref)) {
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return true;
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}
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}
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return false;
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}
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template <typename T>
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void CallbackManager<T>::AddCallback(napi_env& env, napi_ref& handlerRef, sptr<T>& callback)
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{
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auto iter = callbackMap_.find(env);
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if (iter == callbackMap_.end()) {
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std::map<napi_ref, sptr<T>> innerMap;
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innerMap.insert(std::make_pair(handlerRef, callback));
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callbackMap_.insert(std::make_pair(env, innerMap));
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return;
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}
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iter->second.insert(std::make_pair(handlerRef, callback));
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}
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template <typename T>
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void CallbackManager<T>::DeleteCallback(napi_env& env, napi_value& handler)
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{
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auto iter = callbackMap_.find(env);
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if (iter == callbackMap_.end()) {
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return;
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}
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for (auto innerIter = iter->second.begin(); innerIter != iter->second.end(); innerIter++) {
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auto ref = innerIter->first;
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if (IsCallbackEquals(env, handler, ref)) {
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innerIter = iter->second.erase(innerIter);
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if (iter->second.size() == 0) {
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callbackMap_.erase(iter);
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}
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break;
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}
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}
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}
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template <typename T>
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sptr<T> CallbackManager<T>::GetCallbackPtr(napi_env& env, napi_value& handler)
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{
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auto iter = callbackMap_.find(env);
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if (iter == callbackMap_.end()) {
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return nullptr;
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}
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for (auto innerIter = iter->second.begin(); innerIter != iter->second.end(); innerIter++) {
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auto ref = innerIter->first;
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if (IsCallbackEquals(env, handler, ref)) {
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return innerIter->second;
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}
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}
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return nullptr;
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}
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} // namespace Location
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} // namespace OHOS
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#endif // CALLBACK_MANAGER_H
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