1 /*
2 * Copyright (c) 2020 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 #include "directive/directive_watcher_callback.h"
17
18 namespace OHOS {
19 namespace ACELite {
20 const int DirectiveWatcherCallback::CALLBACK_ARGS_LENGTH = 3;
21 const int DirectiveWatcherCallback::ARG_IDX_OPTIONS = 2;
22
Handler(const JSValue func,const JSValue context,const JSValue args[],const JSSize argsSize)23 JSValue DirectiveWatcherCallback::Handler(const JSValue func,
24 const JSValue context,
25 const JSValue args[],
26 const JSSize argsSize)
27 {
28 if (argsSize != CALLBACK_ARGS_LENGTH) {
29 return JSUndefined::Create();
30 }
31
32 JSValue options = args[ARG_IDX_OPTIONS];
33
34 JSValue parentElement = JSObject::Get(options, DescriptorUtils::WATCHER_OPTION_ELEMENT);
35 JSValue descriptor = JSObject::Get(options, DescriptorUtils::WATCHER_OPTION_DESCRIPTOR);
36
37 Component *component = ComponentUtils::GetComponentFromBindingObject(parentElement);
38 if (component) {
39 component->HandleChildrenChange(descriptor);
40 }
41 JSRelease(descriptor);
42 JSRelease(parentElement);
43 return JSUndefined::Create();
44 }
45 } // namespace ACELite
46 } // namespace OHOS
47