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_TYPE = "type"; 29 static final String EXTRA_KEY_PASSWORD = "password"; 30 31 private LockPatternUtils mLockPatternUtils; 32 private Activity mActivity; 33 private Fragment mFragment; 34 35 public ChooseLockSettingsHelper(Activity activity) { 36 mActivity = activity; 37 mLockPatternUtils = new LockPatternUtils(activity); 38 } 39 40 public ChooseLockSettingsHelper(Activity activity, Fragment fragment) { 41 this(activity); 42 mFragment = fragment; 43 } 44 45 public LockPatternUtils utils() { 46 return mLockPatternUtils; 47 } 48 49 /** 50 * If a pattern, password or PIN exists, prompt the user before allowing them to change it. 51 * @param message optional message to display about the action about to be done 52 * @param details optional detail message to display 53 * @return true if one exists and we launched an activity to confirm it 54 * @see #onActivityResult(int, int, android.content.Intent) 55 */ 56 boolean launchConfirmationActivity(int request, CharSequence message, CharSequence details) { 57 return launchConfirmationActivity(request, message, details, false); 58 } 59 60 /** 61 * If a pattern, password or PIN exists, prompt the user before allowing them to change it. 62 * @param message optional message to display about the action about to be done 63 * @param details optional detail message to display 64 * @param returnCredentials if true, put credentials into intent. Note that if this is true, 65 this can only be called internally. 66 * @return true if one exists and we launched an activity to confirm it 67 * @see #onActivityResult(int, int, android.content.Intent) 68 */ 69 boolean launchConfirmationActivity(int request, CharSequence message, CharSequence details, 70 boolean returnCredentials) { 71 boolean launched = false; 72 switch (mLockPatternUtils.getKeyguardStoredPasswordQuality()) { 73 case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING: 74 launched = confirmPattern(request, message, details, returnCredentials); 75 break; 76 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC: 77 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX: 78 case DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC: 79 case DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC: 80 case DevicePolicyManager.PASSWORD_QUALITY_COMPLEX: 81 // TODO: update UI layout for ConfirmPassword to show message and details 82 launched = confirmPassword(request, message, returnCredentials); 83 break; 84 } 85 return launched; 86 } 87 88 /** 89 * Launch screen to confirm the existing lock pattern. 90 * @param message shown in header of ConfirmLockPattern if not null 91 * @param details shown in footer of ConfirmLockPattern if not null 92 * @param returnCredentials if true, put credentials into intent. 93 * @see #onActivityResult(int, int, android.content.Intent) 94 * @return true if we launched an activity to confirm pattern 95 */ 96 private boolean confirmPattern(int request, CharSequence message, 97 CharSequence details, boolean returnCredentials) { 98 if (!mLockPatternUtils.isLockPatternEnabled() || !mLockPatternUtils.savedPatternExists()) { 99 return false; 100 } 101 final Intent intent = new Intent(); 102 // supply header and footer text in the intent 103 intent.putExtra(ConfirmLockPattern.HEADER_TEXT, message); 104 intent.putExtra(ConfirmLockPattern.FOOTER_TEXT, details); 105 intent.setClassName("com.android.settings", 106 returnCredentials 107 ? ConfirmLockPattern.InternalActivity.class.getName() 108 : ConfirmLockPattern.class.getName()); 109 if (mFragment != null) { 110 mFragment.startActivityForResult(intent, request); 111 } else { 112 mActivity.startActivityForResult(intent, request); 113 } 114 return true; 115 } 116 117 /** 118 * Launch screen to confirm the existing lock password. 119 * @param message shown in header of ConfirmLockPassword if not null 120 * @param returnCredentials if true, put credentials into intent. 121 * @see #onActivityResult(int, int, android.content.Intent) 122 * @return true if we launched an activity to confirm password 123 */ 124 private boolean confirmPassword(int request, CharSequence message, 125 boolean returnCredentials) { 126 if (!mLockPatternUtils.isLockPasswordEnabled()) return false; 127 final Intent intent = new Intent(); 128 // supply header text in the intent 129 intent.putExtra(ConfirmLockPattern.HEADER_TEXT, message); 130 intent.setClassName("com.android.settings", 131 returnCredentials 132 ? ConfirmLockPassword.InternalActivity.class.getName() 133 : ConfirmLockPassword.class.getName()); 134 if (mFragment != null) { 135 mFragment.startActivityForResult(intent, request); 136 } else { 137 mActivity.startActivityForResult(intent, request); 138 } 139 return true; 140 } 141 142 143 } 144
