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.settings.connecteddevice.audiosharing.audiostreams; 18 19 import android.os.Handler; 20 import android.os.Looper; 21 import android.util.Log; 22 23 import androidx.annotation.Nullable; 24 import androidx.annotation.StringRes; 25 import androidx.annotation.VisibleForTesting; 26 import androidx.preference.Preference; 27 28 import com.android.settings.overlay.FeatureFactory; 29 import com.android.settingslib.bluetooth.BluetoothUtils; 30 import com.android.settingslib.core.instrumentation.MetricsFeatureProvider; 31 import com.android.settingslib.utils.ThreadUtils; 32 33 class AudioStreamStateHandler { 34 private static final String TAG = "AudioStreamStateHandler"; 35 private static final boolean DEBUG = BluetoothUtils.D; 36 @VisibleForTesting static final int EMPTY_STRING_RES = 0; 37 38 final AudioStreamsRepository mAudioStreamsRepository = AudioStreamsRepository.getInstance(); 39 final Handler mHandler = new Handler(Looper.getMainLooper()); 40 final MetricsFeatureProvider mMetricsFeatureProvider = 41 FeatureFactory.getFeatureFactory().getMetricsFeatureProvider(); 42 AudioStreamStateHandler()43 AudioStreamStateHandler() {} 44 handleStateChange( AudioStreamPreference preference, AudioStreamsProgressCategoryController controller, AudioStreamsHelper helper)45 void handleStateChange( 46 AudioStreamPreference preference, 47 AudioStreamsProgressCategoryController controller, 48 AudioStreamsHelper helper) { 49 var newState = getStateEnum(); 50 if (preference.getAudioStreamState() == newState) { 51 return; 52 } 53 if (DEBUG) { 54 Log.d( 55 TAG, 56 "moveToState() : moving preference : [" 57 + preference.getAudioStreamBroadcastId() 58 + ", " 59 + preference.getAudioStreamBroadcastName() 60 + "] from state : " 61 + preference.getAudioStreamState() 62 + " to state : " 63 + newState); 64 } 65 preference.setAudioStreamState(newState); 66 67 performAction(preference, controller, helper); 68 69 // Update UI 70 ThreadUtils.postOnMainThread( 71 () -> 72 preference.setIsConnected( 73 newState 74 == AudioStreamsProgressCategoryController.AudioStreamState 75 .SOURCE_ADDED, 76 getSummary() != EMPTY_STRING_RES 77 ? preference.getContext().getString(getSummary()) 78 : "", 79 getOnClickListener(controller))); 80 } 81 82 /** 83 * Perform action related to the audio stream state (e.g, addSource) This method is intended to 84 * be optionally overridden by subclasses to provide custom behavior based on the audio stream 85 * state change. 86 */ performAction( AudioStreamPreference preference, AudioStreamsProgressCategoryController controller, AudioStreamsHelper helper)87 void performAction( 88 AudioStreamPreference preference, 89 AudioStreamsProgressCategoryController controller, 90 AudioStreamsHelper helper) {} 91 92 /** 93 * The preference summary for the audio stream state (e.g, Scanning...) This method is intended 94 * to be optionally overridden. 95 */ 96 @StringRes getSummary()97 int getSummary() { 98 return EMPTY_STRING_RES; 99 } 100 101 /** 102 * The preference on click event for the audio stream state (e.g, open up a dialog) This method 103 * is intended to be optionally overridden. 104 */ 105 @Nullable getOnClickListener( AudioStreamsProgressCategoryController controller)106 Preference.OnPreferenceClickListener getOnClickListener( 107 AudioStreamsProgressCategoryController controller) { 108 return null; 109 } 110 111 /** Subclasses should always override. */ getStateEnum()112 AudioStreamsProgressCategoryController.AudioStreamState getStateEnum() { 113 return AudioStreamsProgressCategoryController.AudioStreamState.UNKNOWN; 114 } 115 } 116