1 /* 2 * Copyright (C) 2022 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 16 #ifndef NAPI_ACCESSIBILITY_CONFIG_OBSERVER_H 17 #define NAPI_ACCESSIBILITY_CONFIG_OBSERVER_H 18 19 #include <map> 20 #include <string> 21 #include "accessibility_config.h" 22 #include "napi/native_api.h" 23 #include "napi/native_node_api.h" 24 25 const uint32_t CONFIG_START_WORK_ARGS_SIZE = 2; 26 27 struct NAccessibilityConfigObserver { 28 public: NAccessibilityConfigObserverNAccessibilityConfigObserver29 NAccessibilityConfigObserver(napi_env env, napi_ref callback, OHOS::AccessibilityConfig::CONFIG_ID id) 30 : env_(env), handlerRef_(callback), configId_(id) {}; 31 void OnConfigChanged(const OHOS::AccessibilityConfig::ConfigValue& value); 32 33 void NotifyStateChanged2JS(bool enabled); 34 void NotifyPropertyChanged2JS(const OHOS::AccessibilityConfig::CaptionProperty &caption); 35 void NotifyStringChanged2JS(const std::string& value); 36 void NotifyIntChanged2JS(int32_t value); 37 void NotifyUintChanged2JS(uint32_t value); 38 void NotifyFloatChanged2JS(float value); 39 40 napi_env env_ = nullptr; 41 napi_ref handlerRef_ = nullptr; 42 OHOS::AccessibilityConfig::CONFIG_ID configId_ = OHOS::AccessibilityConfig::CONFIG_ID::CONFIG_ID_MAX; 43 }; 44 45 class NAccessibilityConfigObserverImpl : public OHOS::AccessibilityConfig::AccessibilityConfigObserver, 46 public std::enable_shared_from_this<NAccessibilityConfigObserverImpl> { 47 public: 48 NAccessibilityConfigObserverImpl() = default; 49 virtual void OnConfigChanged( 50 const OHOS::AccessibilityConfig::CONFIG_ID id, const OHOS::AccessibilityConfig::ConfigValue& value) override; 51 void SubscribeToFramework(); 52 void SubscribeObserver(napi_env env, OHOS::AccessibilityConfig::CONFIG_ID id, napi_value observer); 53 void UnsubscribeObserver(napi_env env, OHOS::AccessibilityConfig::CONFIG_ID id, napi_value observer); 54 void UnsubscribeObservers(OHOS::AccessibilityConfig::CONFIG_ID id); 55 56 private: 57 std::mutex mutex_; 58 std::vector<std::shared_ptr<NAccessibilityConfigObserver>> observers_ = {}; 59 }; 60 #endif // NAPI_ACCESSIBILITY_CONFIG_OBSERVER_H