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.biometrics; 18 19 import android.annotation.Nullable; 20 import android.content.Intent; 21 import android.os.UserHandle; 22 import android.view.View; 23 24 import com.android.settings.R; 25 import com.android.settings.password.ChooseLockSettingsHelper; 26 27 import com.google.android.setupcompat.util.WizardManagerHelper; 28 29 /** 30 * Abstract base activity which handles the actual enrolling for biometrics. 31 */ 32 public abstract class BiometricsEnrollEnrolling extends BiometricEnrollBase 33 implements BiometricEnrollSidecar.Listener { 34 35 private static final String TAG_SIDECAR = "sidecar"; 36 37 @Nullable 38 protected BiometricEnrollSidecar mSidecar; 39 40 /** 41 * @return the intent for the finish activity 42 */ getFinishIntent()43 protected abstract Intent getFinishIntent(); 44 45 /** 46 * @return an instance of the biometric enroll sidecar 47 */ getSidecar()48 protected abstract BiometricEnrollSidecar getSidecar(); 49 50 /** 51 * @return true if enrollment should start automatically. 52 */ shouldStartAutomatically()53 protected abstract boolean shouldStartAutomatically(); 54 55 @Override onStart()56 protected void onStart() { 57 super.onStart(); 58 if (shouldStartAutomatically()) { 59 startEnrollment(); 60 } 61 } 62 63 @Override onStop()64 protected void onStop() { 65 super.onStop(); 66 67 if (mSidecar != null) { 68 mSidecar.setListener(null); 69 } 70 71 if (!isChangingConfigurations()) { 72 if (mSidecar != null) { 73 mSidecar.cancelEnrollment(); 74 getSupportFragmentManager() 75 .beginTransaction().remove(mSidecar).commitAllowingStateLoss(); 76 } 77 if (!WizardManagerHelper.isAnySetupWizard(getIntent())) { 78 setResult(RESULT_TIMEOUT); 79 } 80 finish(); 81 } 82 } 83 84 @Override shouldFinishWhenBackgrounded()85 protected boolean shouldFinishWhenBackgrounded() { 86 // Prevent super.onStop() from finishing, since we handle this in our onStop(). 87 return false; 88 } 89 90 @Override onBackPressed()91 public void onBackPressed() { 92 cancelEnrollment(); 93 super.onBackPressed(); 94 } 95 onSkipButtonClick(View view)96 protected void onSkipButtonClick(View view) { 97 cancelEnrollment(); 98 setResult(RESULT_SKIP); 99 finish(); 100 } 101 cancelEnrollment()102 public void cancelEnrollment() { 103 if (mSidecar != null) { 104 mSidecar.setListener(null); 105 mSidecar.cancelEnrollment(); 106 getSupportFragmentManager() 107 .beginTransaction().remove(mSidecar).commitAllowingStateLoss(); 108 mSidecar = null; 109 } 110 } 111 startEnrollment()112 public void startEnrollment() { 113 mSidecar = (BiometricEnrollSidecar) getSupportFragmentManager() 114 .findFragmentByTag(TAG_SIDECAR); 115 if (mSidecar == null) { 116 mSidecar = getSidecar(); 117 getSupportFragmentManager().beginTransaction().add(mSidecar, TAG_SIDECAR) 118 .commitAllowingStateLoss(); 119 } 120 mSidecar.setListener(this); 121 } 122 launchFinish(byte[] token)123 protected void launchFinish(byte[] token) { 124 Intent intent = getFinishIntent(); 125 intent.addFlags(Intent.FLAG_ACTIVITY_FORWARD_RESULT 126 | Intent.FLAG_ACTIVITY_CLEAR_TOP 127 | Intent.FLAG_ACTIVITY_SINGLE_TOP); 128 intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN, token); 129 intent.putExtra(BiometricEnrollBase.EXTRA_KEY_SENSOR_ID, mSensorId); 130 intent.putExtra(BiometricEnrollBase.EXTRA_KEY_CHALLENGE, mChallenge); 131 intent.putExtra(EXTRA_FROM_SETTINGS_SUMMARY, mFromSettingsSummary); 132 if (mUserId != UserHandle.USER_NULL) { 133 intent.putExtra(Intent.EXTRA_USER_ID, mUserId); 134 } 135 startActivity(intent); 136 overridePendingTransition(R.anim.sud_slide_next_in, R.anim.sud_slide_next_out); 137 finish(); 138 } 139 140 } 141