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 FRAMEWORKS_BRIDGE_DECLARATIVE_FRONTEND_THEME_JS_LAZY_FOR_EACH_THEME_H 17 #define FRAMEWORKS_BRIDGE_DECLARATIVE_FRONTEND_THEME_JS_LAZY_FOR_EACH_THEME_H 18 19 namespace OHOS::Ace::Framework { 20 class JSLazyForEachTheme { 21 public: ObtainItemGeneratorForThemeSupport(panda::ecmascript::EcmaVM * vm,JSRef<JSFunc> & itemGenerator)22 static void ObtainItemGeneratorForThemeSupport(panda::ecmascript::EcmaVM* vm, JSRef<JSFunc> &itemGenerator) 23 { 24 CHECK_NULL_VOID(vm); 25 26 panda::Local<panda::ObjectRef> globalObj(JSNApi::GetGlobalObject(vm)); 27 if (!globalObj->IsObject(vm)) { 28 return; 29 } 30 31 JSRef<JSVal> lazy4each = JSRef<JSObject>::Make(globalObj)->GetProperty("LazyForEach"); 32 if (!lazy4each->IsObject()) { 33 return; 34 } 35 36 JSRef<JSVal> updateItemFunc = JSRef<JSObject>::Cast(lazy4each)->GetProperty("getItemGeneratorForThemeSupport"); 37 if (!updateItemFunc->IsFunction()) { 38 return; 39 } 40 41 JSRef<JSVal> params[] = { JSRef<JSVal>::Cast(itemGenerator) }; 42 JSRef<JSVal> retVal = JSRef<JSFunc>::Cast(updateItemFunc)->Call(JSRef<JSObject>(), ArraySize(params), params); 43 if (!retVal->IsFunction()) { 44 return; 45 } 46 itemGenerator = JSRef<JSFunc>::Cast(retVal); 47 } 48 }; 49 } // namespace OHOS::Ace::Framework 50 #endif // FRAMEWORKS_BRIDGE_DECLARATIVE_FRONTEND_THEME_JS_LAZY_FOR_EACH_THEME_H