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.shared.model 18 19 /** 20 * An element of a Volume Panel. This can be a button bar, group of sliders or something else. The 21 * only real implementation is Compose-based and located in `compose/features/`. 22 * 23 * Steps for adding an implementation in SystemUI: 24 * 1) Implement `ComposeVolumePanelUiComponent` in `compose/features/` 25 * 2) Add a module binding `ComposeVolumePanelUiComponent` into a map in compose/facade/enabled 26 * 3) Add an interface with the same name as the 2-step module in compose/facade/disabled to stub it 27 * when the Compose is disabled 28 * 4) Add the module to the VolumePanelComponent 29 */ 30 interface VolumePanelUiComponent 31