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