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