1 /* 2 * Copyright (C) 2010 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 package com.android.quicksearchbox; 17 18 import android.app.SearchManager; 19 import android.content.ComponentName; 20 import android.content.Context; 21 import android.content.Intent; 22 import android.content.pm.ComponentInfo; 23 import android.content.pm.PackageManager; 24 import android.content.pm.PackageManager.NameNotFoundException; 25 import android.content.pm.ResolveInfo; 26 import android.os.Bundle; 27 import android.speech.RecognizerIntent; 28 import android.util.Log; 29 30 /** 31 * Voice Search integration. 32 */ 33 public class VoiceSearch { 34 35 private static final String TAG = "QSB.VoiceSearch"; 36 37 private final Context mContext; 38 VoiceSearch(Context context)39 public VoiceSearch(Context context) { 40 mContext = context; 41 } 42 getContext()43 protected Context getContext() { 44 return mContext; 45 } 46 shouldShowVoiceSearch()47 public boolean shouldShowVoiceSearch() { 48 return isVoiceSearchAvailable(); 49 } 50 createVoiceSearchIntent()51 protected Intent createVoiceSearchIntent() { 52 return new Intent(RecognizerIntent.ACTION_WEB_SEARCH); 53 } 54 getResolveInfo()55 private ResolveInfo getResolveInfo() { 56 Intent intent = createVoiceSearchIntent(); 57 ResolveInfo ri = mContext.getPackageManager(). 58 resolveActivity(intent, PackageManager.MATCH_DEFAULT_ONLY); 59 return ri; 60 } 61 isVoiceSearchAvailable()62 public boolean isVoiceSearchAvailable() { 63 return getResolveInfo() != null; 64 } 65 createVoiceWebSearchIntent(Bundle appData)66 public Intent createVoiceWebSearchIntent(Bundle appData) { 67 if (!isVoiceSearchAvailable()) return null; 68 Intent intent = createVoiceSearchIntent(); 69 intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 70 intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, 71 RecognizerIntent.LANGUAGE_MODEL_WEB_SEARCH); 72 if (appData != null) { 73 intent.putExtra(SearchManager.APP_DATA, appData); 74 } 75 return intent; 76 } 77 78 /** 79 * Create an intent to launch the voice search help screen, if any exists. 80 * @return The intent, or null. 81 */ createVoiceSearchHelpIntent()82 public Intent createVoiceSearchHelpIntent() { 83 return null; 84 } 85 86 /** 87 * Gets the {@code versionCode} of the currently installed voice search package. 88 * 89 * @return The {@code versionCode} of voiceSearch, or 0 if none is installed. 90 */ getVersion()91 public int getVersion() { 92 ResolveInfo ri = getResolveInfo(); 93 if (ri == null) return 0; 94 ComponentInfo ci = ri.activityInfo != null ? ri.activityInfo : ri.serviceInfo; 95 try { 96 return getContext().getPackageManager().getPackageInfo(ci.packageName, 0).versionCode; 97 } catch (NameNotFoundException e) { 98 Log.e(TAG, "Cannot find voice search package " + ci.packageName, e); 99 return 0; 100 } 101 } 102 getComponent()103 public ComponentName getComponent() { 104 return createVoiceSearchIntent().resolveActivity(getContext().getPackageManager()); 105 } 106 } 107