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 const uint32_t START_WORK_ARGS_SIZE = 2; 31 struct StateListener { StateListenerStateListener32 StateListener(napi_env env, napi_ref ref) : handlerRef_(ref), env_(env) {}; 33 static void NotifyJS(napi_env env, bool state, napi_ref handlerRef); 34 void OnStateChanged(const bool state); 35 36 napi_ref handlerRef_ = nullptr; 37 napi_env env_ = nullptr; 38 }; 39 40 class StateListenerImpl : public OHOS::Accessibility::AccessibilityStateObserver, 41 public std::enable_shared_from_this<StateListenerImpl> { 42 public: StateListenerImpl(OHOS::Accessibility::AccessibilityStateEventType type)43 StateListenerImpl(OHOS::Accessibility::AccessibilityStateEventType type) : type_(type) {}; 44 void OnStateChanged(const bool state) override; 45 void SubscribeToFramework(); 46 void SubscribeObserver(napi_env env, napi_value observer); 47 void UnsubscribeObserver(napi_env env, napi_value observer); 48 void UnsubscribeObservers(); 49 50 private: 51 std::mutex mutex_; 52 OHOS::Accessibility::AccessibilityStateEventType type_; 53 std::vector<std::shared_ptr<StateListener>> observers_ = {}; 54 }; 55 56 struct NAccessibilitySystemAbilityClient { 57 napi_async_work work_ {}; 58 napi_deferred deferred_ {}; 59 napi_ref thisRefer_ {}; 60 napi_ref callback_ {}; 61 napi_env env_ {}; 62 bool enabled_ = false; 63 bool touchEnabled_ = false; 64 OHOS::Accessibility::AbilityStateType stateTypes_ = OHOS::Accessibility::ABILITY_STATE_INVALID; 65 uint32_t abilityTypes_ = 0; 66 std::vector<OHOS::Accessibility::AccessibilityAbilityInfo> abilityList_ {}; 67 OHOS::AccessibilityConfig::CaptionProperty captionProperty_ {}; 68 bool setCaptionPropertyReturn_ = false; 69 bool captionState_ = false; 70 bool setCaptionStateReturn_ = false; 71 bool enabledState_ = false; 72 bool setEnabledReturn_ = false; 73 bool touchGuideState_ = false; 74 bool setTouchGuideStateReturn_ = false; 75 bool gestureState_ = false; 76 bool setGestureStateReturn_ = false; 77 bool keyEventObserverState_ = false; 78 bool setKeyEvenReturn_ = false; 79 OHOS::Accessibility::AccessibilityEventInfo eventInfo_ {}; 80 bool result_ = false; 81 OHOS::Accessibility::RetError ret_ = OHOS::Accessibility::RET_ERR_FAILED; 82 std::string eventType_ = ""; 83 84 std::map<std::string, std::vector<std::shared_ptr<StateListener>>> stateListeners_; 85 std::vector<std::shared_ptr<NAccessibilityConfigObserver>> captionListener_; 86 }; 87 88 class NAccessibilityClient { 89 public: 90 static napi_value IsOpenAccessibility(napi_env env, napi_callback_info info); 91 static napi_value IsOpenAccessibilitySync(napi_env env, napi_callback_info info); 92 static napi_value IsOpenTouchExploration(napi_env env, napi_callback_info info); 93 static napi_value IsOpenTouchExplorationSync(napi_env env, napi_callback_info info); 94 static napi_value GetAbilityList(napi_env env, napi_callback_info info); 95 static napi_value GetAccessibilityExtensionList(napi_env env, napi_callback_info info); 96 static napi_value SubscribeState(napi_env env, napi_callback_info info); 97 static napi_value UnsubscribeState(napi_env env, napi_callback_info info); 98 static napi_value SendEvent(napi_env env, napi_callback_info info); 99 static napi_value SendAccessibilityEvent(napi_env env, napi_callback_info info); 100 101 static void DefineJSCaptionsManager(napi_env env); 102 static napi_value AccessibleAbilityConstructor(napi_env env, napi_callback_info info); 103 static napi_value GetCaptionsManager(napi_env env, napi_callback_info info); 104 static napi_value GetCaptionStateEnabled(napi_env env, napi_callback_info info); 105 static napi_value SetCaptionStateEnabled(napi_env env, napi_callback_info info); 106 static napi_value GetCaptionStyle(napi_env env, napi_callback_info info); 107 static napi_value SetCaptionStyle(napi_env env, napi_callback_info info); 108 static napi_value RegisterCaptionStateCallback(napi_env env, napi_callback_info info); 109 static napi_value DeregisterCaptionStateCallback(napi_env env, napi_callback_info info); 110 111 static void DefineJSCaptionsStyle(napi_env env); 112 static napi_value AccessibleAbilityConstructorStyle(napi_env env, napi_callback_info info); 113 static napi_value GetCaptionsFontFamily(napi_env env, napi_callback_info info); 114 static napi_value SetCaptionsFontFamily(napi_env env, napi_callback_info info); 115 static napi_value GetCaptionsFontScale(napi_env env, napi_callback_info info); 116 static napi_value SetCaptionsFontScale(napi_env env, napi_callback_info info); 117 static napi_value GetCaptionFrontColor(napi_env env, napi_callback_info info); 118 static napi_value SetCaptionFrontColor(napi_env env, napi_callback_info info); 119 static napi_value GetCaptionFontEdgeType(napi_env env, napi_callback_info info); 120 static napi_value SetCaptionFontEdgeType(napi_env env, napi_callback_info info); 121 static napi_value GetCaptionBackgroundColor(napi_env env, napi_callback_info info); 122 static napi_value SetCaptionBackgroundColor(napi_env env, napi_callback_info info); 123 static napi_value GetCaptionWindowColor(napi_env env, napi_callback_info info); 124 static napi_value SetCaptionWindowColor(napi_env env, napi_callback_info info); 125 126 static thread_local napi_ref aaConsRef_; 127 static thread_local napi_ref aaStyleConsRef_; 128 static std::shared_ptr<StateListenerImpl> accessibilityStateListeners_; 129 static std::shared_ptr<StateListenerImpl> touchGuideStateListeners_; 130 static std::shared_ptr<NAccessibilityConfigObserverImpl> captionListeners_; 131 132 private: 133 static napi_value GetAccessibilityExtensionListAsync( 134 napi_env env, size_t argc, napi_value* parameters, NAccessibilitySystemAbilityClient* data); 135 static void GetAccessibilityStateEventType( 136 napi_env env, napi_value* args, OHOS::Accessibility::RetError& errCode, uint32_t& type); 137 static void Completefunction(napi_env env, std::string type, void* data); 138 static void GetAbilityListExecute(napi_env env, void* data); 139 static void GetAbilityListComplete(napi_env env, napi_status status, void* data); 140 static void SendEventExecute(napi_env env, void* data); 141 static void SendEventComplete(napi_env env, napi_status status, void* data); 142 static bool CheckAbilityType(const std::string& abilityType); 143 static bool CheckStateType(const std::string& stateType); 144 NAccessibilityClient() = default; 145 ~NAccessibilityClient() = default; 146 }; 147 148 #endif // NAPI_ACCESSIBILITY_SYSTEM_ABILITY_CLIENT_H