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 17 package com.android.settings; 18 19 import com.android.internal.widget.LockPatternUtils; 20 21 import android.app.Activity; 22 import android.app.Fragment; 23 import android.app.admin.DevicePolicyManager; 24 import android.content.Intent; 25 26 public final class ChooseLockSettingsHelper { 27 28 static final String EXTRA_KEY_PASSWORD = "password"; 29 30 private LockPatternUtils mLockPatternUtils; 31 private Activity mActivity; 32 private Fragment mFragment; 33 ChooseLockSettingsHelper(Activity activity)34 public ChooseLockSettingsHelper(Activity activity) { 35 mActivity = activity; 36 mLockPatternUtils = new LockPatternUtils(activity); 37 } 38 ChooseLockSettingsHelper(Activity activity, Fragment fragment)39 public ChooseLockSettingsHelper(Activity activity, Fragment fragment) { 40 this(activity); 41 mFragment = fragment; 42 } 43 utils()44 public LockPatternUtils utils() { 45 return mLockPatternUtils; 46 } 47 48 /** 49 * If a pattern, password or PIN exists, prompt the user before allowing them to change it. 50 * @param message optional message to display about the action about to be done 51 * @param details optional detail message to display 52 * @return true if one exists and we launched an activity to confirm it 53 * @see #onActivityResult(int, int, android.content.Intent) 54 */ launchConfirmationActivity(int request, CharSequence message, CharSequence details)55 boolean launchConfirmationActivity(int request, CharSequence message, CharSequence details) { 56 boolean launched = false; 57 switch (mLockPatternUtils.getKeyguardStoredPasswordQuality()) { 58 case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING: 59 launched = confirmPattern(request, message, details); 60 break; 61 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC: 62 case DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC: 63 case DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC: 64 case DevicePolicyManager.PASSWORD_QUALITY_COMPLEX: 65 // TODO: update UI layout for ConfirmPassword to show message and details 66 launched = confirmPassword(request); 67 break; 68 } 69 return launched; 70 } 71 72 /** 73 * Launch screen to confirm the existing lock pattern. 74 * @param message shown in header of ConfirmLockPattern if not null 75 * @param details shown in footer of ConfirmLockPattern if not null 76 * @see #onActivityResult(int, int, android.content.Intent) 77 * @return true if we launched an activity to confirm pattern 78 */ confirmPattern(int request, CharSequence message, CharSequence details)79 private boolean confirmPattern(int request, CharSequence message, CharSequence details) { 80 if (!mLockPatternUtils.isLockPatternEnabled() || !mLockPatternUtils.savedPatternExists()) { 81 return false; 82 } 83 final Intent intent = new Intent(); 84 // supply header and footer text in the intent 85 intent.putExtra(ConfirmLockPattern.HEADER_TEXT, message); 86 intent.putExtra(ConfirmLockPattern.FOOTER_TEXT, details); 87 intent.setClassName("com.android.settings", "com.android.settings.ConfirmLockPattern"); 88 if (mFragment != null) { 89 mFragment.startActivityForResult(intent, request); 90 } else { 91 mActivity.startActivityForResult(intent, request); 92 } 93 return true; 94 } 95 96 /** 97 * Launch screen to confirm the existing lock password. 98 * @see #onActivityResult(int, int, android.content.Intent) 99 * @return true if we launched an activity to confirm password 100 */ confirmPassword(int request)101 private boolean confirmPassword(int request) { 102 if (!mLockPatternUtils.isLockPasswordEnabled()) return false; 103 final Intent intent = new Intent(); 104 intent.setClassName("com.android.settings", "com.android.settings.ConfirmLockPassword"); 105 if (mFragment != null) { 106 mFragment.startActivityForResult(intent, request); 107 } else { 108 mActivity.startActivityForResult(intent, request); 109 } 110 return true; 111 } 112 113 114 } 115