1 /* 2 * Copyright (C) 2018 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.settingslib.suggestions; 18 19 20 import android.content.ComponentName; 21 import android.content.Context; 22 import android.os.Bundle; 23 import android.service.settings.suggestions.Suggestion; 24 import android.util.Log; 25 26 import androidx.annotation.Nullable; 27 import androidx.lifecycle.OnLifecycleEvent; 28 import androidx.loader.app.LoaderManager; 29 import androidx.loader.content.Loader; 30 31 import com.android.settingslib.core.lifecycle.Lifecycle; 32 33 import java.util.List; 34 35 /** 36 * Manages IPC communication to SettingsIntelligence for suggestion related services. 37 */ 38 public class SuggestionControllerMixinCompat implements 39 SuggestionController.ServiceConnectionListener, androidx.lifecycle.LifecycleObserver, 40 LoaderManager.LoaderCallbacks<List<Suggestion>> { 41 42 public interface SuggestionControllerHost { 43 /** 44 * Called when suggestion data fetching is ready. 45 */ onSuggestionReady(List<Suggestion> data)46 void onSuggestionReady(List<Suggestion> data); 47 48 /** 49 * Returns {@link LoaderManager} associated with the host. If host is not attached to 50 * activity then return null. 51 */ 52 @Nullable getLoaderManager()53 LoaderManager getLoaderManager(); 54 } 55 56 private static final String TAG = "SuggestionCtrlMixin"; 57 private static final boolean DEBUG = false; 58 59 private final Context mContext; 60 private final SuggestionController mSuggestionController; 61 private final SuggestionControllerHost mHost; 62 63 private boolean mSuggestionLoaded; 64 SuggestionControllerMixinCompat(Context context, SuggestionControllerHost host, Lifecycle lifecycle, ComponentName componentName)65 public SuggestionControllerMixinCompat(Context context, SuggestionControllerHost host, 66 Lifecycle lifecycle, ComponentName componentName) { 67 mContext = context.getApplicationContext(); 68 mHost = host; 69 mSuggestionController = new SuggestionController(mContext, componentName, 70 this /* serviceConnectionListener */); 71 if (lifecycle != null) { 72 lifecycle.addObserver(this); 73 } 74 } 75 76 @OnLifecycleEvent(Lifecycle.Event.ON_START) onStart()77 public void onStart() { 78 if (DEBUG) { 79 Log.d(TAG, "SuggestionController started"); 80 } 81 mSuggestionController.start(); 82 } 83 84 @OnLifecycleEvent(Lifecycle.Event.ON_STOP) onStop()85 public void onStop() { 86 if (DEBUG) { 87 Log.d(TAG, "SuggestionController stopped."); 88 } 89 mSuggestionController.stop(); 90 } 91 92 @Override onServiceConnected()93 public void onServiceConnected() { 94 final LoaderManager loaderManager = mHost.getLoaderManager(); 95 if (loaderManager != null) { 96 loaderManager.restartLoader(SuggestionLoader.LOADER_ID_SUGGESTIONS, 97 null /* args */, this /* callback */); 98 } 99 } 100 101 @Override onServiceDisconnected()102 public void onServiceDisconnected() { 103 if (DEBUG) { 104 Log.d(TAG, "SuggestionService disconnected"); 105 } 106 final LoaderManager loaderManager = mHost.getLoaderManager(); 107 if (loaderManager != null) { 108 loaderManager.destroyLoader(SuggestionLoader.LOADER_ID_SUGGESTIONS); 109 } 110 } 111 112 @Override onCreateLoader(int id, Bundle args)113 public Loader<List<Suggestion>> onCreateLoader(int id, Bundle args) { 114 if (id == SuggestionLoader.LOADER_ID_SUGGESTIONS) { 115 mSuggestionLoaded = false; 116 return new SuggestionLoaderCompat(mContext, mSuggestionController); 117 } 118 throw new IllegalArgumentException("This loader id is not supported " + id); 119 } 120 121 @Override onLoadFinished(Loader<List<Suggestion>> loader, List<Suggestion> data)122 public void onLoadFinished(Loader<List<Suggestion>> loader, List<Suggestion> data) { 123 mSuggestionLoaded = true; 124 mHost.onSuggestionReady(data); 125 } 126 127 @Override onLoaderReset(Loader<List<Suggestion>> loader)128 public void onLoaderReset(Loader<List<Suggestion>> loader) { 129 mSuggestionLoaded = false; 130 } 131 isSuggestionLoaded()132 public boolean isSuggestionLoaded() { 133 return mSuggestionLoaded; 134 } 135 dismissSuggestion(Suggestion suggestion)136 public void dismissSuggestion(Suggestion suggestion) { 137 mSuggestionController.dismissSuggestions(suggestion); 138 } 139 launchSuggestion(Suggestion suggestion)140 public void launchSuggestion(Suggestion suggestion) { 141 mSuggestionController.launchSuggestion(suggestion); 142 } 143 } 144