1 /******************************************************************************* 2 * Copyright (C) 2014 Google Inc. 3 * Licensed to The Android Open Source Project. 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 *******************************************************************************/ 17 18 package com.android.mail.ui.settings; 19 20 import android.app.ActionBar; 21 import android.app.Fragment; 22 import android.app.LoaderManager.LoaderCallbacks; 23 import android.content.CursorLoader; 24 import android.content.Loader; 25 import android.database.Cursor; 26 import android.os.Bundle; 27 import android.preference.PreferenceActivity; 28 import android.text.TextUtils; 29 30 import com.android.mail.R; 31 import com.android.mail.providers.Account; 32 import com.android.mail.providers.MailAppProvider; 33 import com.android.mail.providers.UIProvider; 34 import com.android.mail.providers.UIProvider.AccountCapabilities; 35 import com.google.common.annotations.VisibleForTesting; 36 37 import java.lang.ref.WeakReference; 38 import java.util.List; 39 40 public class MailPreferenceActivity extends PreferenceActivity { 41 42 public static final String PREFERENCE_FRAGMENT_ID = "preference_fragment_id"; 43 44 private static final int ACCOUNT_LOADER_ID = 0; 45 46 private WeakReference<GeneralPrefsFragment> mGeneralPrefsFragmentRef; 47 48 private Cursor mAccountsCursor; 49 50 @Override onCreate(Bundle savedInstanceState)51 protected void onCreate(Bundle savedInstanceState) { 52 super.onCreate(savedInstanceState); 53 54 final ActionBar actionBar = getActionBar(); 55 if (actionBar != null) { 56 // Hide the app icon. 57 actionBar.setIcon(android.R.color.transparent); 58 actionBar.setDisplayUseLogoEnabled(false); 59 } 60 61 getLoaderManager().initLoader(ACCOUNT_LOADER_ID, null, new AccountLoaderCallbacks()); 62 } 63 64 private class AccountLoaderCallbacks implements LoaderCallbacks<Cursor> { 65 @Override onCreateLoader(int id, Bundle args)66 public Loader<Cursor> onCreateLoader(int id, Bundle args) { 67 return new CursorLoader(MailPreferenceActivity.this, 68 MailAppProvider.getAccountsUri(), UIProvider.ACCOUNTS_PROJECTION, 69 null, null, null); 70 } 71 72 @Override onLoadFinished(Loader<Cursor> loader, Cursor data)73 public void onLoadFinished(Loader<Cursor> loader, Cursor data) { 74 mAccountsCursor = data; 75 invalidateHeaders(); 76 } 77 78 @Override onLoaderReset(Loader<Cursor> loader)79 public void onLoaderReset(Loader<Cursor> loader) { 80 mAccountsCursor = null; 81 invalidateHeaders(); 82 } 83 } 84 85 @VisibleForTesting getGeneralPrefsFragment()86 GeneralPrefsFragment getGeneralPrefsFragment() { 87 return mGeneralPrefsFragmentRef != null ? mGeneralPrefsFragmentRef.get() : null; 88 } 89 90 @Override onAttachFragment(Fragment fragment)91 public void onAttachFragment(Fragment fragment) { 92 super.onAttachFragment(fragment); 93 if (fragment instanceof GeneralPrefsFragment) { 94 mGeneralPrefsFragmentRef = 95 new WeakReference<GeneralPrefsFragment>((GeneralPrefsFragment) fragment); 96 } 97 } 98 99 @Override isValidFragment(String fragmentName)100 protected boolean isValidFragment(String fragmentName) { 101 // TODO: STOPSHIP fix Email to use the PublicPreferenceActivity trampoline 102 return true; 103 } 104 105 @Override onBuildHeaders(List<Header> target)106 public void onBuildHeaders(List<Header> target) { 107 loadHeadersFromResource(R.xml.preference_headers, target); 108 if (mAccountsCursor != null && mAccountsCursor.moveToFirst()) { 109 do { 110 final Account account = Account.builder().buildFrom(mAccountsCursor); 111 // TODO: This will no longer be needed when the Combined view is moved to Unified 112 if (!account.supportsCapability(AccountCapabilities.VIRTUAL_ACCOUNT)) { 113 final Header header = new Header(); 114 if (TextUtils.isEmpty(account.getDisplayName()) || 115 TextUtils.equals(account.getDisplayName(), account.getEmailAddress())) { 116 // No (useful) display name, just use the email address 117 header.title = account.getEmailAddress(); 118 } else { 119 header.title = account.getDisplayName(); 120 header.summary = account.getEmailAddress(); 121 } 122 header.fragment = account.settingsFragmentClass; 123 final Bundle accountBundle = new Bundle(1); 124 accountBundle.putString(MailAccountPrefsFragment.ARG_ACCOUNT_EMAIL, 125 account.getEmailAddress()); 126 header.fragmentArguments = accountBundle; 127 128 target.add(header); 129 } 130 } while (mAccountsCursor.moveToNext()); 131 } 132 onBuildExtraHeaders(target); 133 } 134 135 /** 136 * Override this in a subclass to add extra headers besides "General Settings" and accounts 137 * @param target List of headers to mutate 138 */ onBuildExtraHeaders(List<Header> target)139 public void onBuildExtraHeaders(List<Header> target) { 140 } 141 } 142