1 /*
2  * Copyright (C) 2023 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.shade.transition
18 
19 /** An interpolator interface for the shade expansion. */
20 interface LargeScreenShadeInterpolator {
21 
22     /** Returns the alpha for the behind/back scrim. */
getBehindScrimAlphanull23     fun getBehindScrimAlpha(fraction: Float): Float
24 
25     /** Returns the alpha for the notification scrim. */
26     fun getNotificationScrimAlpha(fraction: Float): Float
27 
28     /** Returns the alpha for the notifications. */
29     fun getNotificationContentAlpha(fraction: Float): Float
30 
31     /** Returns the alpha for the notifications footer (Manager, Clear All). */
32     fun getNotificationFooterAlpha(fraction: Float): Float
33 
34     /** Returns the alpha for the QS panel. */
35     fun getQsAlpha(fraction: Float): Float
36 }
37