1 /*
2  * Copyright (C) 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 com.android.systemui.volume.panel.ui.layout
18 
19 import com.android.systemui.volume.panel.ui.viewmodel.ComponentState
20 import com.android.systemui.volume.panel.ui.viewmodel.VolumePanelState
21 
22 /**
23  * Lays out components to [ComponentsLayout], that UI uses to render the Volume Panel.
24  *
25  * Vertical layout shows the list from top to bottom:
26  * ```
27  * -----
28  * | 1 |
29  * | 2 |
30  * | 3 |
31  * | 4 |
32  * -----
33  * ```
34  *
35  * Horizontal layout shows the list in a grid from, filling the columns first:
36  * ```
37  * ----------
38  * | 1 || 3 |
39  * | 2 || 4 |
40  * ----------
41  * ```
42  */
43 interface ComponentsLayoutManager {
44 
layoutnull45     fun layout(
46         volumePanelState: VolumePanelState,
47         components: Collection<ComponentState>,
48     ): ComponentsLayout
49 }
50