1 /* 2 * Copyright (c) 2024 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 FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_PLATFORM_ACCESSIBILITY_CHILD_TREE_CALLBACK_H 17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_PLATFORM_ACCESSIBILITY_CHILD_TREE_CALLBACK_H 18 19 #include "core/accessibility/accessibility_manager.h" 20 #include "core/components_ng/pattern/ui_extension/platform_accessibility_base.h" 21 22 namespace OHOS::Ace::NG { 23 24 class PlatformAccessibilityChildTreeCallback : public AccessibilityChildTreeCallback { 25 public: PlatformAccessibilityChildTreeCallback(const WeakPtr<PlatformAccessibilityBase> & weakPattern,int64_t accessibilityId)26 PlatformAccessibilityChildTreeCallback( 27 const WeakPtr<PlatformAccessibilityBase> &weakPattern, int64_t accessibilityId) 28 : AccessibilityChildTreeCallback(accessibilityId), weakPattern_(weakPattern) 29 {} 30 31 ~PlatformAccessibilityChildTreeCallback() override = default; 32 OnRegister(uint32_t windowId,int32_t treeId)33 bool OnRegister(uint32_t windowId, int32_t treeId) override 34 { 35 auto pattern = weakPattern_.Upgrade(); 36 CHECK_NULL_RETURN(pattern, false); 37 if (isReg_) { 38 return true; 39 } 40 pattern->OnAccessibilityChildTreeRegister(windowId, treeId, GetAccessibilityId()); 41 isReg_ = true; 42 return true; 43 } 44 OnDeregister()45 bool OnDeregister() override 46 { 47 auto pattern = weakPattern_.Upgrade(); 48 CHECK_NULL_RETURN(pattern, false); 49 if (!isReg_) { 50 return true; 51 } 52 pattern->OnAccessibilityChildTreeDeregister(); 53 isReg_ = false; 54 return true; 55 } 56 OnSetChildTree(int32_t childWindowId,int32_t childTreeId)57 bool OnSetChildTree(int32_t childWindowId, int32_t childTreeId) override 58 { 59 auto pattern = weakPattern_.Upgrade(); 60 CHECK_NULL_RETURN(pattern, false); 61 pattern->OnSetAccessibilityChildTree(childWindowId, childTreeId); 62 return true; 63 } 64 OnDumpChildInfo(const std::vector<std::string> & params,std::vector<std::string> & info)65 bool OnDumpChildInfo(const std::vector<std::string>& params, std::vector<std::string>& info) override 66 { 67 auto pattern = weakPattern_.Upgrade(); 68 CHECK_NULL_RETURN(pattern, false); 69 pattern->OnAccessibilityDumpChildInfo(params, info); 70 return true; 71 } 72 OnClearRegisterFlag()73 void OnClearRegisterFlag() override 74 { 75 isReg_ = false; 76 } 77 78 private: 79 bool isReg_ = false; 80 WeakPtr<PlatformAccessibilityBase> weakPattern_; 81 }; 82 83 } // namespace OHOS::Ace::NG 84 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_PLATFORM_ACCESSIBILITY_CHILD_TREE_CALLBACK_H