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 "napi/native_api.h" 24 #include "napi/native_node_api.h" 25 26 namespace OHOS { 27 namespace Accessibility { 28 napi_handle_scope TmpOpenScope(napi_env env); 29 } // namespace Accessibility 30 } // namespace OHOS 31 32 const uint32_t CONFIG_START_WORK_ARGS_SIZE = 2; 33 34 struct NAccessibilityConfigObserver { 35 public: NAccessibilityConfigObserverNAccessibilityConfigObserver36 NAccessibilityConfigObserver(napi_env env, napi_ref callback, OHOS::AccessibilityConfig::CONFIG_ID id) 37 : env_(env), handlerRef_(callback), configId_(id) {}; 38 void OnConfigChanged(const OHOS::AccessibilityConfig::ConfigValue& value); 39 void OnConfigChangedExtra(const OHOS::AccessibilityConfig::ConfigValue& value); 40 41 void OnDaltonizationColorFilterConfigChanged(); 42 void NotifyStateChanged2JS(bool enabled); 43 int NotifyStateChanged(uv_work_t *work); 44 void NotifyPropertyChanged2JS(const OHOS::AccessibilityConfig::CaptionProperty &caption); 45 int NotifyPropertyChanged(uv_work_t *work); 46 void NotifyStringChanged2JS(const std::string& value); 47 void NotifyStringVectorChanged2JS(std::vector<std::string> value); 48 int NotifyStringChanged(uv_work_t *work); 49 int NotifyStringVectorChanged(uv_work_t *work); 50 void NotifyIntChanged2JS(int32_t value); 51 int NotifyIntChanged(uv_work_t *work); 52 void NotifyUintChanged2JS(uint32_t value); 53 int NotifyUintChanged(uv_work_t *work); 54 void NotifyFloatChanged2JS(float value); 55 int NotifyFloatChanged(uv_work_t *work); 56 57 napi_env env_ = nullptr; 58 napi_ref handlerRef_ = nullptr; 59 OHOS::AccessibilityConfig::CONFIG_ID configId_ = OHOS::AccessibilityConfig::CONFIG_ID::CONFIG_ID_MAX; 60 }; 61 62 class NAccessibilityConfigObserverImpl : public OHOS::AccessibilityConfig::AccessibilityConfigObserver, 63 public std::enable_shared_from_this<NAccessibilityConfigObserverImpl> { 64 public: 65 NAccessibilityConfigObserverImpl() = default; 66 virtual void OnConfigChanged( 67 const OHOS::AccessibilityConfig::CONFIG_ID id, const OHOS::AccessibilityConfig::ConfigValue& value) override; 68 void SubscribeToFramework(); 69 void SubscribeObserver(napi_env env, OHOS::AccessibilityConfig::CONFIG_ID id, napi_value observer); 70 void UnsubscribeObserver(napi_env env, OHOS::AccessibilityConfig::CONFIG_ID id, napi_value observer); 71 void UnsubscribeObservers(OHOS::AccessibilityConfig::CONFIG_ID id); 72 73 private: 74 std::mutex mutex_; 75 std::vector<std::shared_ptr<NAccessibilityConfigObserver>> observers_ = {}; 76 }; 77 #endif // ACCESSIBILITY_CONFIG_OBSERVER_H