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_SYSTEM_ABILITY_CLIENT_H 17 #define NAPI_ACCESSIBILITY_SYSTEM_ABILITY_CLIENT_H 18 19 #include <vector> 20 #include <map> 21 #include "napi/native_api.h" 22 #include "napi/native_node_api.h" 23 #include "accessibility_config.h" 24 #include "accessibility_system_ability_client.h" 25 #include "accessibility_state_event.h" 26 #include "accessibility_ability_info.h" 27 #include "accessibility_utils.h" 28 #include "accessibility_config_observer.h" 29 30 namespace OHOS { 31 namespace Accessibility { 32 napi_handle_scope TmpOpenScope(napi_env env); 33 } // namespace Accessibility 34 } // namespace OHOS 35 36 const uint32_t START_WORK_ARGS_SIZE = 2; 37 struct StateListener { StateListenerStateListener38 StateListener(napi_env env, napi_ref ref) : handlerRef_(ref), env_(env) {}; 39 static void NotifyJS(napi_env env, bool state, napi_ref handlerRef); 40 void OnStateChanged(const bool state); 41 42 napi_ref handlerRef_ = nullptr; 43 napi_env env_ = nullptr; 44 }; 45 46 class StateListenerImpl : public OHOS::Accessibility::AccessibilityStateObserver, 47 public std::enable_shared_from_this<StateListenerImpl> { 48 public: StateListenerImpl(OHOS::Accessibility::AccessibilityStateEventType type)49 StateListenerImpl(OHOS::Accessibility::AccessibilityStateEventType type) : type_(type) {}; 50 void OnStateChanged(const bool state) override; 51 void SubscribeToFramework(); 52 void UnsubscribeFromFramework(); 53 void SubscribeObserver(napi_env env, napi_value observer); 54 void UnsubscribeObserver(napi_env env, napi_value observer); 55 void UnsubscribeObservers(); 56 57 private: 58 ffrt::mutex mutex_; 59 OHOS::Accessibility::AccessibilityStateEventType type_; 60 std::vector<std::shared_ptr<StateListener>> observers_ = {}; 61 62 private: 63 void DeleteObserverReference(napi_env env, std::shared_ptr<StateListener> observer); 64 }; 65 66 struct NAccessibilitySystemAbilityClient { 67 napi_async_work work_ {}; 68 napi_deferred deferred_ {}; 69 napi_ref thisRefer_ {}; 70 napi_ref callback_ {}; 71 napi_env env_ {}; 72 bool enabled_ = false; 73 bool touchEnabled_ = false; 74 OHOS::Accessibility::AbilityStateType stateTypes_ = OHOS::Accessibility::ABILITY_STATE_INVALID; 75 uint32_t abilityTypes_ = 0; 76 std::vector<OHOS::Accessibility::AccessibilityAbilityInfo> abilityList_ {}; 77 OHOS::AccessibilityConfig::CaptionProperty captionProperty_ {}; 78 bool setCaptionPropertyReturn_ = false; 79 bool captionState_ = false; 80 bool setCaptionStateReturn_ = false; 81 bool enabledState_ = false; 82 bool setEnabledReturn_ = false; 83 bool touchGuideState_ = false; 84 bool setTouchGuideStateReturn_ = false; 85 bool gestureState_ = false; 86 bool setGestureStateReturn_ = false; 87 bool keyEventObserverState_ = false; 88 bool setKeyEvenReturn_ = false; 89 OHOS::Accessibility::AccessibilityEventInfo eventInfo_ {}; 90 bool result_ = false; 91 OHOS::Accessibility::RetError ret_ = OHOS::Accessibility::RET_ERR_FAILED; 92 std::string eventType_ = ""; 93 94 std::map<std::string, std::vector<std::shared_ptr<StateListener>>> stateListeners_; 95 std::vector<std::shared_ptr<NAccessibilityConfigObserver>> captionListener_; 96 }; 97 98 class NAccessibilityClient { 99 public: 100 static napi_value IsOpenAccessibility(napi_env env, napi_callback_info info); 101 static napi_value IsOpenAccessibilitySync(napi_env env, napi_callback_info info); 102 static napi_value IsOpenTouchExploration(napi_env env, napi_callback_info info); 103 static napi_value IsOpenTouchExplorationSync(napi_env env, napi_callback_info info); 104 static napi_value IsScreenReaderOpenSync(napi_env env, napi_callback_info info); 105 static napi_value GetAbilityList(napi_env env, napi_callback_info info); 106 static napi_value GetAccessibilityExtensionList(napi_env env, napi_callback_info info); 107 static napi_value GetAccessibilityExtensionListSync(napi_env env, napi_callback_info info); 108 static napi_value SubscribeState(napi_env env, napi_callback_info info); 109 static napi_value UnsubscribeState(napi_env env, napi_callback_info info); 110 static napi_value SendEvent(napi_env env, napi_callback_info info); 111 static napi_value SendAccessibilityEvent(napi_env env, napi_callback_info info); 112 113 static void DefineJSCaptionsManager(napi_env env); 114 static napi_value AccessibleAbilityConstructor(napi_env env, napi_callback_info info); 115 static napi_value GetCaptionsManager(napi_env env, napi_callback_info info); 116 static napi_value GetCaptionStateEnabled(napi_env env, napi_callback_info info); 117 static napi_value SetCaptionStateEnabled(napi_env env, napi_callback_info info); 118 static napi_value GetCaptionStyle(napi_env env, napi_callback_info info); 119 static napi_value SetCaptionStyle(napi_env env, napi_callback_info info); 120 static napi_value RegisterCaptionStateCallback(napi_env env, napi_callback_info info); 121 static napi_value DeregisterCaptionStateCallback(napi_env env, napi_callback_info info); 122 123 static void DefineJSCaptionsStyle(napi_env env); 124 static napi_value AccessibleAbilityConstructorStyle(napi_env env, napi_callback_info info); 125 static napi_value GetCaptionsFontFamily(napi_env env, napi_callback_info info); 126 static napi_value SetCaptionsFontFamily(napi_env env, napi_callback_info info); 127 static napi_value GetCaptionsFontScale(napi_env env, napi_callback_info info); 128 static napi_value SetCaptionsFontScale(napi_env env, napi_callback_info info); 129 static napi_value GetCaptionFrontColor(napi_env env, napi_callback_info info); 130 static napi_value SetCaptionFrontColor(napi_env env, napi_callback_info info); 131 static napi_value GetCaptionFontEdgeType(napi_env env, napi_callback_info info); 132 static napi_value SetCaptionFontEdgeType(napi_env env, napi_callback_info info); 133 static napi_value GetCaptionBackgroundColor(napi_env env, napi_callback_info info); 134 static napi_value SetCaptionBackgroundColor(napi_env env, napi_callback_info info); 135 static napi_value GetCaptionWindowColor(napi_env env, napi_callback_info info); 136 static napi_value SetCaptionWindowColor(napi_env env, napi_callback_info info); 137 138 static napi_ref aaConsRef_; 139 static napi_ref aaStyleConsRef_; 140 static std::shared_ptr<StateListenerImpl> accessibilityStateListeners_; 141 static std::shared_ptr<StateListenerImpl> touchGuideStateListeners_; 142 static std::shared_ptr<StateListenerImpl> screenReaderStateListeners_; 143 static std::shared_ptr<NAccessibilityConfigObserverImpl> captionListeners_; 144 145 private: 146 static napi_value GetAccessibilityExtensionListAsync( 147 napi_env env, size_t argc, napi_value* parameters, NAccessibilitySystemAbilityClient* data); 148 static void GetAccessibilityStateEventType( 149 napi_env env, napi_value* args, OHOS::Accessibility::RetError& errCode, uint32_t& type); 150 static void Completefunction(napi_env env, std::string type, void* data); 151 static void GetAbilityListExecute(napi_env env, void* data); 152 static void GetAbilityListComplete(napi_env env, napi_status status, void* data); 153 static void SendEventExecute(napi_env env, void* data); 154 static void SendEventComplete(napi_env env, napi_status status, void* data); 155 static bool CheckAbilityType(const std::string& abilityType); 156 static bool CheckStateType(const std::string& stateType); 157 NAccessibilityClient() = default; 158 ~NAccessibilityClient() = default; 159 }; 160 161 #endif // NAPI_ACCESSIBILITY_SYSTEM_ABILITY_CLIENT_H