1 /* 2 * Copyright (C) 2014 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.tv.settings.accounts; 18 19 import android.accounts.Account; 20 import android.accounts.AccountManager; 21 import android.accounts.AuthenticatorDescription; 22 import android.content.Context; 23 import android.content.pm.PackageManager; 24 import android.content.res.Resources; 25 import android.graphics.drawable.Drawable; 26 import android.util.Log; 27 28 import java.util.ArrayList; 29 import java.util.HashMap; 30 import java.util.Map; 31 32 public class AuthenticatorHelper { 33 34 private static final String TAG = "AuthenticatorHelper"; 35 private final Map<String, AuthenticatorDescription> mTypeToAuthDescription = new HashMap<>(); 36 private AuthenticatorDescription[] mAuthDescs; 37 private final ArrayList<String> mEnabledAccountTypes = new ArrayList<>(); 38 private final Map<String, Drawable> mAccTypeIconCache = new HashMap<>(); 39 40 public AuthenticatorHelper() { 41 } 42 43 public String[] getEnabledAccountTypes() { 44 return mEnabledAccountTypes.toArray(new String[mEnabledAccountTypes.size()]); 45 } 46 47 /** 48 * Gets an icon associated with a particular account type. If none found, return null. 49 * @param accountType the type of account 50 * @return a drawable for the icon or null if one cannot be found. 51 */ 52 public Drawable getDrawableForType(Context context, final String accountType) { 53 Drawable icon = null; 54 if (mAccTypeIconCache.containsKey(accountType)) { 55 return mAccTypeIconCache.get(accountType); 56 } 57 if (mTypeToAuthDescription.containsKey(accountType)) { 58 try { 59 AuthenticatorDescription desc = mTypeToAuthDescription.get(accountType); 60 Context authContext = context.createPackageContext(desc.packageName, 0); 61 icon = authContext.getResources().getDrawable(desc.iconId); 62 mAccTypeIconCache.put(accountType, icon); 63 } catch (PackageManager.NameNotFoundException e) { 64 } catch (Resources.NotFoundException e) { 65 } 66 } 67 if (icon == null) { 68 icon = context.getPackageManager().getDefaultActivityIcon(); 69 } 70 return icon; 71 } 72 73 /** 74 * Gets the label associated with a particular account type. If none found, return null. 75 * @param accountType the type of account 76 * @return a CharSequence for the label or null if one cannot be found. 77 */ 78 public CharSequence getLabelForType(Context context, final String accountType) { 79 CharSequence label = null; 80 if (mTypeToAuthDescription.containsKey(accountType)) { 81 try { 82 AuthenticatorDescription desc = mTypeToAuthDescription.get(accountType); 83 Context authContext = context.createPackageContext(desc.packageName, 0); 84 label = authContext.getResources().getText(desc.labelId); 85 } catch (PackageManager.NameNotFoundException e) { 86 Log.w(TAG, "No label name for account type " + accountType); 87 } catch (Resources.NotFoundException e) { 88 Log.w(TAG, "No label icon for account type " + accountType); 89 } 90 } 91 return label; 92 } 93 94 /** 95 * Updates provider icons. Subclasses should call this in onCreate() 96 * and update any UI that depends on AuthenticatorDescriptions in onAuthDescriptionsUpdated(). 97 */ 98 public void updateAuthDescriptions(Context context) { 99 mAuthDescs = AccountManager.get(context).getAuthenticatorTypes(); 100 for (int i = 0; i < mAuthDescs.length; i++) { 101 mTypeToAuthDescription.put(mAuthDescs[i].type, mAuthDescs[i]); 102 } 103 } 104 105 public void onAccountsUpdated(Context context, Account[] accounts) { 106 if (accounts == null) { 107 accounts = AccountManager.get(context).getAccounts(); 108 } 109 mEnabledAccountTypes.clear(); 110 mAccTypeIconCache.clear(); 111 for (Account account: accounts) { 112 if (!mEnabledAccountTypes.contains(account.type)) { 113 mEnabledAccountTypes.add(account.type); 114 } 115 } 116 } 117 118 public boolean containsAccountType(String accountType) { 119 return mTypeToAuthDescription.containsKey(accountType); 120 } 121 122 public AuthenticatorDescription getAccountTypeDescription(String accountType) { 123 return mTypeToAuthDescription.get(accountType); 124 } 125 126 public boolean hasAccountPreferences(final String accountType) { 127 if (containsAccountType(accountType)) { 128 AuthenticatorDescription desc = getAccountTypeDescription(accountType); 129 if (desc != null && desc.accountPreferencesId != 0) { 130 return true; 131 } 132 } 133 return false; 134 } 135 } 136