1 /*
2  * Copyright 2024 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package androidx.xr.runtime.internal
18 
19 import androidx.annotation.RestrictTo
20 
21 /** Base interface for all components. */
22 @RestrictTo(RestrictTo.Scope.LIBRARY_GROUP_PREFIX)
23 public interface Component {
24     /**
25      * Lifecycle event, called when component is attached to an Entity.
26      *
27      * @param entity Entity the component is attached to.
28      * @return True if the component can attach to the given entity.
29      */
onAttachnull30     public fun onAttach(entity: Entity): Boolean
31 
32     /**
33      * Lifecycle event, called when component is detached from an Entity.
34      *
35      * @param entity Entity the component detached from.
36      */
37     public fun onDetach(entity: Entity)
38 }
39