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      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.internal.policy.impl;
     18 
     19 import com.android.internal.widget.LockPatternUtils;
     20 
     21 import android.content.Context;
     22 import com.android.internal.telephony.IccCard;
     23 
     24 /**
     25  * Knows how to create a lock pattern keyguard view, and answer questions about
     26  * it (even if it hasn't been created, per the interface specs).
     27  */
     28 public class LockPatternKeyguardViewProperties implements KeyguardViewProperties {
     29 
     30     private final LockPatternUtils mLockPatternUtils;
     31     private final KeyguardUpdateMonitor mUpdateMonitor;
     32 
     33     /**
     34      * @param lockPatternUtils Used to know whether the pattern enabled, and passed
     35      *   onto the keygaurd view when it is created.
     36      * @param updateMonitor Used to know whether the sim pin is enabled, and passed
     37      *   onto the keyguard view when it is created.
     38      */
     39     public LockPatternKeyguardViewProperties(LockPatternUtils lockPatternUtils,
     40             KeyguardUpdateMonitor updateMonitor) {
     41         mLockPatternUtils = lockPatternUtils;
     42         mUpdateMonitor = updateMonitor;
     43     }
     44 
     45     public KeyguardViewBase createKeyguardView(Context context,
     46             KeyguardUpdateMonitor updateMonitor,
     47             KeyguardWindowController controller) {
     48         return new LockPatternKeyguardView(context, updateMonitor,
     49                 mLockPatternUtils, controller);
     50     }
     51 
     52     public boolean isSecure() {
     53         return mLockPatternUtils.isSecure() || isSimPinSecure();
     54     }
     55 
     56     private boolean isSimPinSecure() {
     57         final IccCard.State simState = mUpdateMonitor.getSimState();
     58         return (simState == IccCard.State.PIN_REQUIRED || simState == IccCard.State.PUK_REQUIRED
     59             || simState == IccCard.State.ABSENT);
     60     }
     61 
     62 }
     63