1 /* 2 * Copyright (C) 2008 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.accounts; 18 19 import java.util.ArrayList; 20 import java.util.HashMap; 21 import java.util.Map; 22 23 import com.android.settings.SettingsPreferenceFragment; 24 import com.google.android.collect.Maps; 25 26 import android.accounts.Account; 27 import android.accounts.AccountManager; 28 import android.accounts.AuthenticatorDescription; 29 import android.accounts.OnAccountsUpdateListener; 30 import android.content.ContentResolver; 31 import android.content.Context; 32 import android.content.SyncAdapterType; 33 import android.content.SyncStatusObserver; 34 import android.content.pm.PackageManager; 35 import android.content.res.Resources; 36 import android.graphics.drawable.Drawable; 37 import android.os.Bundle; 38 import android.os.Handler; 39 import android.preference.PreferenceActivity; 40 import android.preference.PreferenceScreen; 41 import android.util.Log; 42 43 class AccountPreferenceBase extends SettingsPreferenceFragment 44 implements OnAccountsUpdateListener { 45 46 protected static final String TAG = "AccountSettings"; 47 public static final String AUTHORITIES_FILTER_KEY = "authorities"; 48 public static final String ACCOUNT_TYPES_FILTER_KEY = "account_types"; 49 private Map<String, AuthenticatorDescription> mTypeToAuthDescription 50 = new HashMap<String, AuthenticatorDescription>(); 51 protected AuthenticatorDescription[] mAuthDescs; 52 private final Handler mHandler = new Handler(); 53 private Object mStatusChangeListenerHandle; 54 private HashMap<String, ArrayList<String>> mAccountTypeToAuthorities = null; 55 56 /** 57 * Overload to handle account updates. 58 */ 59 public void onAccountsUpdated(Account[] accounts) { 60 61 } 62 63 /** 64 * Overload to handle authenticator description updates 65 */ 66 protected void onAuthDescriptionsUpdated() { 67 68 } 69 70 /** 71 * Overload to handle sync state updates. 72 */ 73 protected void onSyncStateUpdated() { 74 75 } 76 77 @Override 78 public void onResume() { 79 super.onResume(); 80 mStatusChangeListenerHandle = ContentResolver.addStatusChangeListener( 81 ContentResolver.SYNC_OBSERVER_TYPE_ACTIVE 82 | ContentResolver.SYNC_OBSERVER_TYPE_STATUS 83 | ContentResolver.SYNC_OBSERVER_TYPE_SETTINGS, 84 mSyncStatusObserver); 85 onSyncStateUpdated(); 86 } 87 88 @Override 89 public void onPause() { 90 super.onPause(); 91 ContentResolver.removeStatusChangeListener(mStatusChangeListenerHandle); 92 } 93 94 95 private SyncStatusObserver mSyncStatusObserver = new SyncStatusObserver() { 96 public void onStatusChanged(int which) { 97 mHandler.post(new Runnable() { 98 public void run() { 99 onSyncStateUpdated(); 100 } 101 }); 102 } 103 }; 104 105 public ArrayList<String> getAuthoritiesForAccountType(String type) { 106 if (mAccountTypeToAuthorities == null) { 107 mAccountTypeToAuthorities = Maps.newHashMap(); 108 SyncAdapterType[] syncAdapters = ContentResolver.getSyncAdapterTypes(); 109 for (int i = 0, n = syncAdapters.length; i < n; i++) { 110 final SyncAdapterType sa = syncAdapters[i]; 111 ArrayList<String> authorities = mAccountTypeToAuthorities.get(sa.accountType); 112 if (authorities == null) { 113 authorities = new ArrayList<String>(); 114 mAccountTypeToAuthorities.put(sa.accountType, authorities); 115 } 116 if (Log.isLoggable(TAG, Log.VERBOSE)) { 117 Log.d(TAG, "added authority " + sa.authority + " to accountType " 118 + sa.accountType); 119 } 120 authorities.add(sa.authority); 121 } 122 } 123 return mAccountTypeToAuthorities.get(type); 124 } 125 126 /** 127 * Gets an icon associated with a particular account type. If none found, return null. 128 * @param accountType the type of account 129 * @return a drawable for the icon or null if one cannot be found. 130 */ 131 protected Drawable getDrawableForType(final String accountType) { 132 Drawable icon = null; 133 if (mTypeToAuthDescription.containsKey(accountType)) { 134 try { 135 AuthenticatorDescription desc = mTypeToAuthDescription.get(accountType); 136 Context authContext = getActivity().createPackageContext(desc.packageName, 0); 137 icon = authContext.getResources().getDrawable(desc.iconId); 138 } catch (PackageManager.NameNotFoundException e) { 139 // TODO: place holder icon for missing account icons? 140 Log.w(TAG, "No icon name for account type " + accountType); 141 } catch (Resources.NotFoundException e) { 142 // TODO: place holder icon for missing account icons? 143 Log.w(TAG, "No icon resource for account type " + accountType); 144 } 145 } 146 return icon; 147 } 148 149 /** 150 * Gets the label associated with a particular account type. If none found, return null. 151 * @param accountType the type of account 152 * @return a CharSequence for the label or null if one cannot be found. 153 */ 154 protected CharSequence getLabelForType(final String accountType) { 155 CharSequence label = null; 156 if (mTypeToAuthDescription.containsKey(accountType)) { 157 try { 158 AuthenticatorDescription desc = mTypeToAuthDescription.get(accountType); 159 Context authContext = getActivity().createPackageContext(desc.packageName, 0); 160 label = authContext.getResources().getText(desc.labelId); 161 } catch (PackageManager.NameNotFoundException e) { 162 Log.w(TAG, "No label name for account type " + accountType); 163 } catch (Resources.NotFoundException e) { 164 Log.w(TAG, "No label icon for account type " + accountType); 165 } 166 } 167 return label; 168 } 169 170 /** 171 * Gets the preferences.xml file associated with a particular account type. 172 * @param accountType the type of account 173 * @return a PreferenceScreen inflated from accountPreferenceId. 174 */ 175 protected PreferenceScreen addPreferencesForType(final String accountType) { 176 PreferenceScreen prefs = null; 177 if (mTypeToAuthDescription.containsKey(accountType)) { 178 AuthenticatorDescription desc = null; 179 try { 180 desc = mTypeToAuthDescription.get(accountType); 181 if (desc != null && desc.accountPreferencesId != 0) { 182 Context authContext = getActivity().createPackageContext(desc.packageName, 0); 183 prefs = getPreferenceManager().inflateFromResource(authContext, 184 desc.accountPreferencesId, getPreferenceScreen()); 185 } 186 } catch (PackageManager.NameNotFoundException e) { 187 Log.w(TAG, "Couldn't load preferences.xml file from " + desc.packageName); 188 } catch (Resources.NotFoundException e) { 189 Log.w(TAG, "Couldn't load preferences.xml file from " + desc.packageName); 190 } 191 } 192 return prefs; 193 } 194 195 /** 196 * Updates provider icons. Subclasses should call this in onCreate() 197 * and update any UI that depends on AuthenticatorDescriptions in onAuthDescriptionsUpdated(). 198 */ 199 protected void updateAuthDescriptions() { 200 mAuthDescs = AccountManager.get(getActivity()).getAuthenticatorTypes(); 201 for (int i = 0; i < mAuthDescs.length; i++) { 202 mTypeToAuthDescription.put(mAuthDescs[i].type, mAuthDescs[i]); 203 } 204 onAuthDescriptionsUpdated(); 205 } 206 } 207