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_PROPERTY_BIND_H
16 #define META_SRC_PROPERTY_BIND_H
17 
18 #include <meta/interface/property/intf_bind.h>
19 
20 #include "../base_object.h"
21 #include "stack_property.h"
22 
23 META_BEGIN_NAMESPACE()
24 namespace Internal {
25 
26 class Bind : public Internal::BaseObjectFwd<Bind, META_NS::ClassId::Bind, IValue, IBind, INotifyOnChange, ISerializable,
27                  IImportFinalize> {
28     using Super = Internal::BaseObjectFwd<Bind, META_NS::ClassId::Bind, IValue, IBind, INotifyOnChange, ISerializable,
29         IImportFinalize>;
30 
31 public:
32     META_NO_COPY_MOVE(Bind)
33 
34     Bind() = default;
35     ~Bind() override;
36 
37     AnyReturnValue SetValue(const IAny& value) override;
38     const IAny& GetValue() const override;
39     bool IsCompatible(const TypeId& id) const override;
40 
41     bool SetTarget(const IProperty::ConstPtr& prop, bool getDeps, const IProperty* owner) override;
42     bool SetTarget(const IFunction::ConstPtr& func, bool getDeps, const IProperty* owner) override;
43     IFunction::ConstPtr GetTarget() const override;
44 
45     bool AddDependency(const INotifyOnChange::ConstPtr& dep) override;
46     bool RemoveDependency(const INotifyOnChange::ConstPtr& dep) override;
47     BASE_NS::vector<INotifyOnChange::ConstPtr> GetDependencies() const override;
48 
49     BASE_NS::shared_ptr<IEvent> EventOnChanged() const override;
50 
51 private:
52     ReturnError Export(IExportContext&) const override;
53     ReturnError Import(IImportContext&) override;
54     ReturnError Finalize(IImportFunctions&) override;
55 
56     bool CreateContext(bool eval, const IProperty* owner);
57 
58     void Reset();
59 
60 private:
61     BASE_NS::shared_ptr<EventImpl<IOnChanged>> event_ { new EventImpl<IOnChanged>("OnChanged") };
62     ICallContext::Ptr context_;
63     IFunction::ConstPtr func_;
64     BASE_NS::vector<INotifyOnChange::ConstWeakPtr> dependencies_;
65 };
66 
67 } // namespace Internal
68 META_END_NAMESPACE()
69 
70 #endif