src/com/android/settings/fingerprint/FingerprintEnrollIntroduction.java

   1 /*
   2  * Copyright (C) 2015 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.app.admin.DevicePolicyManager;
  20 import android.content.Intent;
  21 import android.hardware.fingerprint.FingerprintManager;
  22 import android.os.Bundle;
  23 import android.os.UserHandle;
  24 import android.view.View;
  25
  26 import com.android.internal.logging.MetricsProto.MetricsEvent;
  27 import com.android.settings.ChooseLockGeneric;
  28 import com.android.settings.ChooseLockSettingsHelper;
  29 import com.android.settings.HelpUtils;
  30 import com.android.settings.R;
  31
  32 /**
  33  * Onboarding activity for fingerprint enrollment.
  34  */
  35 public class FingerprintEnrollIntroduction extends FingerprintEnrollBase {
  36
  37     private static final int CHOOSE_LOCK_GENERIC_REQUEST = 1;
  38     private static final int FINGERPRINT_FIND_SENSOR_REQUEST = 2;
  39
  40     private boolean mHasPassword;
  41
  42     @Override
  43     protected void onCreate(Bundle savedInstanceState) {
  44         super.onCreate(savedInstanceState);
  45         setContentView(R.layout.fingerprint_enroll_introduction);
  46         setHeaderText(R.string.security_settings_fingerprint_enroll_introduction_title);
  47         findViewById(R.id.cancel_button).setOnClickListener(this);
  48         findViewById(R.id.learn_more_button).setOnClickListener(this);
  49         updatePasswordQuality();
  50     }
  51
  52     private void updatePasswordQuality() {
  53         final int passwordQuality = new ChooseLockSettingsHelper(this).utils()
  54                 .getActivePasswordQuality(mUserId);
  55         mHasPassword = passwordQuality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED;
  56     }
  57
  58     @Override
  59     protected void onNextButtonClick() {
  60         if (!mHasPassword) {
  61             // No fingerprints registered, launch into enrollment wizard.
  62             launchChooseLock();
  63         } else {
  64             // Lock thingy is already set up, launch directly into find sensor step from wizard.
  65             launchFindSensor(null);
  66         }
  67     }
  68
  69     private void launchChooseLock() {
  70         Intent intent = getChooseLockIntent();
  71         long challenge = getSystemService(FingerprintManager.class).preEnroll();
  72         intent.putExtra(ChooseLockGeneric.ChooseLockGenericFragment.MINIMUM_QUALITY_KEY,
  73                 DevicePolicyManager.PASSWORD_QUALITY_SOMETHING);
  74         intent.putExtra(ChooseLockGeneric.ChooseLockGenericFragment.HIDE_DISABLED_PREFS, true);
  75         intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_HAS_CHALLENGE, true);
  76         intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE, challenge);
  77         intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_FOR_FINGERPRINT, true);
  78         if (mUserId != UserHandle.USER_NULL) {
  79             intent.putExtra(Intent.EXTRA_USER_ID, mUserId);
  80         }
  81         startActivityForResult(intent, CHOOSE_LOCK_GENERIC_REQUEST);
  82     }
  83
  84     private void launchFindSensor(byte[] token) {
  85         Intent intent = getFindSensorIntent();
  86         if (token != null) {
  87             intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN, token);
  88         }
  89         if (mUserId != UserHandle.USER_NULL) {
  90             intent.putExtra(Intent.EXTRA_USER_ID, mUserId);
  91         }
  92         startActivityForResult(intent, FINGERPRINT_FIND_SENSOR_REQUEST);
  93     }
  94
  95     protected Intent getChooseLockIntent() {
  96         return new Intent(this, ChooseLockGeneric.class);
  97     }
  98
  99     protected Intent getFindSensorIntent() {
 100         Intent intent = new Intent(this, FingerprintEnrollFindSensor.class);
 101         return intent;
 102     }
 103
 104     @Override
 105     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
 106         if (resultCode == RESULT_FINISHED) {
 107             if (requestCode == FINGERPRINT_FIND_SENSOR_REQUEST) {
 108                 setResult(RESULT_OK);
 109                 finish();
 110             } else if (requestCode == CHOOSE_LOCK_GENERIC_REQUEST) {
 111                 updatePasswordQuality();
 112                 byte[] token = data.getByteArrayExtra(
 113                         ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN);
 114                 launchFindSensor(token);
 115             }
 116         } else {
 117             super.onActivityResult(requestCode, resultCode, data);
 118         }
 119     }
 120
 121     @Override
 122     public void onClick(View v) {
 123         if (v.getId() == R.id.cancel_button) {
 124             finish();
 125         }
 126         if (v.getId() == R.id.learn_more_button) {
 127             launchFingerprintHelp();
 128         }
 129         super.onClick(v);
 130     }
 131
 132     private void launchFingerprintHelp() {
 133         Intent helpIntent = HelpUtils.getHelpIntent(this,
 134                 getString(R.string.help_url_fingerprint), getClass().getName());
 135         startActivity(helpIntent);
 136     }
 137
 138     @Override
 139     protected int getMetricsCategory() {
 140         return MetricsEvent.FINGERPRINT_ENROLL_INTRO;
 141     }
 142 }