1 /* 2 * Copyright (C) 2018 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.fingerprint; 18 19 import android.content.Context; 20 import android.content.Intent; 21 import android.hardware.fingerprint.Fingerprint; 22 import android.hardware.fingerprint.FingerprintManager; 23 import android.os.UserHandle; 24 import android.os.UserManager; 25 import android.support.v7.preference.Preference; 26 27 import com.android.internal.widget.LockPatternUtils; 28 import com.android.settings.R; 29 import com.android.settings.Utils; 30 import com.android.settings.core.BasePreferenceController; 31 import com.android.settings.overlay.FeatureFactory; 32 33 import java.util.List; 34 35 public class FingerprintStatusPreferenceController extends BasePreferenceController { 36 37 private static final String KEY_FINGERPRINT_SETTINGS = "fingerprint_settings"; 38 39 protected final FingerprintManager mFingerprintManager; 40 protected final UserManager mUm; 41 protected final LockPatternUtils mLockPatternUtils; 42 43 protected final int mUserId = UserHandle.myUserId(); 44 protected final int mProfileChallengeUserId; 45 FingerprintStatusPreferenceController(Context context)46 public FingerprintStatusPreferenceController(Context context) { 47 this(context, KEY_FINGERPRINT_SETTINGS); 48 } 49 FingerprintStatusPreferenceController(Context context, String key)50 public FingerprintStatusPreferenceController(Context context, String key) { 51 super(context, key); 52 mFingerprintManager = Utils.getFingerprintManagerOrNull(context); 53 mUm = (UserManager) context.getSystemService(Context.USER_SERVICE); 54 mLockPatternUtils = FeatureFactory.getFactory(context) 55 .getSecurityFeatureProvider() 56 .getLockPatternUtils(context); 57 mProfileChallengeUserId = Utils.getManagedProfileId(mUm, mUserId); 58 } 59 60 @Override getAvailabilityStatus()61 public int getAvailabilityStatus() { 62 if (mFingerprintManager == null || !mFingerprintManager.isHardwareDetected()) { 63 return UNSUPPORTED_ON_DEVICE; 64 } 65 if (isUserSupported()) { 66 return AVAILABLE; 67 } else { 68 return DISABLED_FOR_USER; 69 } 70 } 71 72 @Override updateState(Preference preference)73 public void updateState(Preference preference) { 74 if (!isAvailable()) { 75 if (preference != null) { 76 preference.setVisible(false); 77 } 78 return; 79 } else { 80 preference.setVisible(true); 81 } 82 final int userId = getUserId(); 83 final List<Fingerprint> items = mFingerprintManager.getEnrolledFingerprints(userId); 84 final int fingerprintCount = items != null ? items.size() : 0; 85 final String clazz; 86 if (fingerprintCount > 0) { 87 preference.setSummary(mContext.getResources().getQuantityString( 88 R.plurals.security_settings_fingerprint_preference_summary, 89 fingerprintCount, fingerprintCount)); 90 clazz = FingerprintSettings.class.getName(); 91 } else { 92 preference.setSummary( 93 R.string.security_settings_fingerprint_preference_summary_none); 94 clazz = FingerprintEnrollIntroduction.class.getName(); 95 } 96 preference.setOnPreferenceClickListener(target -> { 97 final Context context = target.getContext(); 98 final UserManager userManager = UserManager.get(context); 99 if (Utils.startQuietModeDialogIfNecessary(context, userManager, 100 userId)) { 101 return false; 102 } 103 Intent intent = new Intent(); 104 intent.setClassName("com.android.settings", clazz); 105 intent.putExtra(Intent.EXTRA_USER_ID, userId); 106 context.startActivity(intent); 107 return true; 108 }); 109 } 110 getUserId()111 protected int getUserId() { 112 return mUserId; 113 } 114 isUserSupported()115 protected boolean isUserSupported() { 116 return true; 117 } 118 } 119