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