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 ACCESSIBILITY_CONFIG_OBSERVER_H 17 #define ACCESSIBILITY_CONFIG_OBSERVER_H 18 19 #include <map> 20 #include <string> 21 #include <uv.h> 22 #include "accessibility_config.h" 23 #include "ffrt.h" 24 #include "napi/native_api.h" 25 #include "napi/native_node_api.h" 26 27 namespace OHOS { 28 namespace Accessibility { 29 napi_handle_scope TmpOpenScope(napi_env env); 30 } // namespace Accessibility 31 } // namespace OHOS 32 33 const uint32_t CONFIG_START_WORK_ARGS_SIZE = 2; 34 35 struct NAccessibilityConfigObserver { 36 public: NAccessibilityConfigObserverNAccessibilityConfigObserver37 NAccessibilityConfigObserver(napi_env env, napi_ref callback, OHOS::AccessibilityConfig::CONFIG_ID id) 38 : env_(env), handlerRef_(callback), configId_(id) {}; 39 void OnConfigChanged(const OHOS::AccessibilityConfig::ConfigValue& value); 40 void OnConfigChangedExtra(const OHOS::AccessibilityConfig::ConfigValue& value); 41 42 void OnDaltonizationColorFilterConfigChanged(); 43 void NotifyStateChanged2JS(bool enabled); 44 void NotifyPropertyChanged2JS(const OHOS::AccessibilityConfig::CaptionProperty &caption); 45 void NotifyStringChanged2JS(const std::string& value); 46 void NotifyStringVectorChanged2JS(std::vector<std::string> value); 47 void NotifyIntChanged2JS(int32_t value); 48 void NotifyUintChanged2JS(uint32_t value); 49 void NotifyDoubleChanged2JS(double value); 50 51 napi_env env_ = nullptr; 52 napi_ref handlerRef_ = nullptr; 53 OHOS::AccessibilityConfig::CONFIG_ID configId_ = OHOS::AccessibilityConfig::CONFIG_ID::CONFIG_ID_MAX; 54 }; 55 56 class NAccessibilityConfigObserverImpl : public OHOS::AccessibilityConfig::AccessibilityConfigObserver, 57 public std::enable_shared_from_this<NAccessibilityConfigObserverImpl> { 58 public: 59 NAccessibilityConfigObserverImpl() = default; 60 virtual void OnConfigChanged( 61 const OHOS::AccessibilityConfig::CONFIG_ID id, const OHOS::AccessibilityConfig::ConfigValue& value) override; 62 void SubscribeToFramework(); 63 void UnsubscribeFromFramework(); 64 void SubscribeObserver(napi_env env, OHOS::AccessibilityConfig::CONFIG_ID id, napi_value observer); 65 void UnsubscribeObserver(napi_env env, OHOS::AccessibilityConfig::CONFIG_ID id, napi_value observer); 66 void UnsubscribeObservers(OHOS::AccessibilityConfig::CONFIG_ID id); 67 68 private: 69 ffrt::mutex mutex_; 70 std::vector<std::shared_ptr<NAccessibilityConfigObserver>> observers_ = {}; 71 }; 72 #endif // ACCESSIBILITY_CONFIG_OBSERVER_H