1 /* 2 * Copyright (C) 2017 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 import android.app.LoaderManager; 20 import android.arch.lifecycle.OnLifecycleEvent; 21 import android.content.ComponentName; 22 import android.content.Context; 23 import android.content.Loader; 24 import android.os.Bundle; 25 import android.service.settings.suggestions.Suggestion; 26 import android.support.annotation.Nullable; 27 import android.util.Log; 28 29 import com.android.settingslib.core.lifecycle.Lifecycle; 30 31 import java.util.List; 32 33 /** 34 * Manages IPC communication to SettingsIntelligence for suggestion related services. 35 */ 36 public class SuggestionControllerMixin implements SuggestionController.ServiceConnectionListener, 37 android.arch.lifecycle.LifecycleObserver, LoaderManager.LoaderCallbacks<List<Suggestion>> { 38 39 public interface SuggestionControllerHost { 40 /** 41 * Called when suggestion data fetching is ready. 42 */ onSuggestionReady(List<Suggestion> data)43 void onSuggestionReady(List<Suggestion> data); 44 45 /** 46 * Returns {@link LoaderManager} associated with the host. If host is not attached to 47 * activity then return null. 48 */ 49 @Nullable getLoaderManager()50 LoaderManager getLoaderManager(); 51 } 52 53 private static final String TAG = "SuggestionCtrlMixin"; 54 private static final boolean DEBUG = false; 55 56 private final Context mContext; 57 private final SuggestionController mSuggestionController; 58 private final SuggestionControllerHost mHost; 59 60 private boolean mSuggestionLoaded; 61 SuggestionControllerMixin(Context context, SuggestionControllerHost host, Lifecycle lifecycle, ComponentName componentName)62 public SuggestionControllerMixin(Context context, SuggestionControllerHost host, 63 Lifecycle lifecycle, ComponentName componentName) { 64 mContext = context.getApplicationContext(); 65 mHost = host; 66 mSuggestionController = new SuggestionController(mContext, componentName, 67 this /* serviceConnectionListener */); 68 if (lifecycle != null) { 69 lifecycle.addObserver(this); 70 } 71 } 72 73 @OnLifecycleEvent(Lifecycle.Event.ON_START) onStart()74 public void onStart() { 75 if (DEBUG) { 76 Log.d(TAG, "SuggestionController started"); 77 } 78 mSuggestionController.start(); 79 } 80 81 @OnLifecycleEvent(Lifecycle.Event.ON_STOP) onStop()82 public void onStop() { 83 if (DEBUG) { 84 Log.d(TAG, "SuggestionController stopped."); 85 } 86 mSuggestionController.stop(); 87 } 88 89 @Override onServiceConnected()90 public void onServiceConnected() { 91 final LoaderManager loaderManager = mHost.getLoaderManager(); 92 if (loaderManager != null) { 93 loaderManager.restartLoader(SuggestionLoader.LOADER_ID_SUGGESTIONS, 94 null /* args */, this /* callback */); 95 } 96 } 97 98 @Override onServiceDisconnected()99 public void onServiceDisconnected() { 100 if (DEBUG) { 101 Log.d(TAG, "SuggestionService disconnected"); 102 } 103 final LoaderManager loaderManager = mHost.getLoaderManager(); 104 if (loaderManager != null) { 105 loaderManager.destroyLoader(SuggestionLoader.LOADER_ID_SUGGESTIONS); 106 } 107 } 108 109 @Override onCreateLoader(int id, Bundle args)110 public Loader<List<Suggestion>> onCreateLoader(int id, Bundle args) { 111 if (id == SuggestionLoader.LOADER_ID_SUGGESTIONS) { 112 mSuggestionLoaded = false; 113 return new SuggestionLoader(mContext, mSuggestionController); 114 } 115 throw new IllegalArgumentException("This loader id is not supported " + id); 116 } 117 118 @Override onLoadFinished(Loader<List<Suggestion>> loader, List<Suggestion> data)119 public void onLoadFinished(Loader<List<Suggestion>> loader, List<Suggestion> data) { 120 mSuggestionLoaded = true; 121 mHost.onSuggestionReady(data); 122 } 123 124 @Override onLoaderReset(Loader<List<Suggestion>> loader)125 public void onLoaderReset(Loader<List<Suggestion>> loader) { 126 mSuggestionLoaded = false; 127 } 128 isSuggestionLoaded()129 public boolean isSuggestionLoaded() { 130 return mSuggestionLoaded; 131 } 132 dismissSuggestion(Suggestion suggestion)133 public void dismissSuggestion(Suggestion suggestion) { 134 mSuggestionController.dismissSuggestions(suggestion); 135 } 136 launchSuggestion(Suggestion suggestion)137 public void launchSuggestion(Suggestion suggestion) { 138 mSuggestionController.launchSuggestion(suggestion); 139 } 140 } 141