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 #ifndef META_SRC_OBJECT_CONTAINER_H
16 #define META_SRC_OBJECT_CONTAINER_H
17
18 #include <meta/base/namespace.h>
19
20 #include "container.h"
21
META_BEGIN_INTERNAL_NAMESPACE()22 META_BEGIN_INTERNAL_NAMESPACE()
23
24 class ObjectContainer : public IntroduceInterfaces<MetaObject, Container, IContainerPreTransaction> {
25 META_OBJECT(ObjectContainer, ClassId::ObjectContainer, IntroduceInterfaces)
26 protected:
27 bool Build(const IMetadata::Ptr& data) override;
28 void Destroy() override;
29
30 bool Add(const IObject::Ptr& object) override;
31 bool Insert(SizeType index, const IObject::Ptr& object) override;
32 bool Replace(const IObject::Ptr& child, const IObject::Ptr& replaceWith, bool addAlways) override;
33
34 bool Remove(SizeType index) override;
35 bool Remove(const IObject::Ptr& object) override;
36 void RemoveAll() override;
37
38 private:
39 IEvent::Ptr GetAboutToChange();
40 bool CallAboutToChange(ContainerChangeType type, const IObject::Ptr& object);
41
42 public:
43 META_BEGIN_STATIC_DATA()
44 META_STATIC_EVENT_DATA(IContainer, IOnChildChanged, OnContainerChanged)
45 META_STATIC_EVENT_DATA(IContainerPreTransaction, IOnChildChanging, ContainerAboutToChange)
46 META_END_STATIC_DATA()
47 META_IMPLEMENT_EVENT(IOnChildChanged, OnContainerChanged)
48 META_IMPLEMENT_EVENT(IOnChildChanging, ContainerAboutToChange)
49 };
50
51 META_END_INTERNAL_NAMESPACE()
52
53 #endif // META_SRC_OBJECT_CONTAINER_H
54