1 /*
2  * Copyright (C) 2020 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 com.android.systemui.controls.ui
18 
19 /**
20  * All controls need to respond to changes in state and handle user-generated events.
21  * Implementations of this interface provide these different means by adding their own
22  * event handlers, and will update the control ui as they see fit.
23  */
24 interface Behavior {
25 
26     /**
27      * Only called once per instance
28      */
initializenull29     fun initialize(cvh: ControlViewHolder)
30 
31     /**
32      * Will be invoked on every update provided to the Control
33      *
34      * @param cws ControlWithState, as loaded from favorites and/or the application
35      * @param colorOffset An additional flag to control rendering color. See [RenderInfo]
36      */
37     fun bind(cws: ControlWithState, colorOffset: Int = 0)
38 }
39