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/*
* Copyright (C) 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.systemui.biometrics;
import android.annotation.NonNull;
import android.content.Context;
import android.util.AttributeSet;
import com.android.internal.annotations.VisibleForTesting;
import com.android.internal.widget.LockPatternChecker;
import com.android.internal.widget.LockPatternUtils;
import com.android.internal.widget.LockPatternView;
import com.android.internal.widget.LockscreenCredential;
import com.android.internal.widget.VerifyCredentialResponse;
import com.android.systemui.R;
import java.util.List;
/**
* Pattern UI
*/
public class AuthCredentialPatternView extends AuthCredentialView {
@VisibleForTesting LockPatternView mLockPatternView;
private class UnlockPatternListener implements LockPatternView.OnPatternListener {
@Override
public void onPatternStart() {
}
@Override
public void onPatternCleared() {
}
@Override
public void onPatternCellAdded(List<LockPatternView.Cell> pattern) {
}
@Override
public void onPatternDetected(List<LockPatternView.Cell> pattern) {
if (mPendingLockCheck != null) {
mPendingLockCheck.cancel(false);
}
mLockPatternView.setEnabled(false);
if (pattern.size() < LockPatternUtils.MIN_PATTERN_REGISTER_FAIL) {
// Pattern size is less than the minimum, do not count it as a failed attempt.
onPatternVerified(VerifyCredentialResponse.ERROR, 0 /* timeoutMs */);
return;
}
try (LockscreenCredential credential = LockscreenCredential.createPattern(
pattern, mLockPatternUtils.getLockPatternSize(mUserId))) {
// Request LockSettingsService to return the Gatekeeper Password in the
// VerifyCredentialResponse so that we can request a Gatekeeper HAT with the
// Gatekeeper Password and operationId.
mPendingLockCheck = LockPatternChecker.verifyCredential(
mLockPatternUtils,
credential,
mEffectiveUserId,
LockPatternUtils.VERIFY_FLAG_REQUEST_GK_PW_HANDLE,
this::onPatternVerified);
}
}
private void onPatternVerified(@NonNull VerifyCredentialResponse response, int timeoutMs) {
AuthCredentialPatternView.this.onCredentialVerified(response, timeoutMs);
if (timeoutMs > 0) {
mLockPatternView.setEnabled(false);
} else {
mLockPatternView.setEnabled(true);
}
}
}
@Override
protected void onErrorTimeoutFinish() {
super.onErrorTimeoutFinish();
mLockPatternView.setEnabled(true);
}
public AuthCredentialPatternView(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
protected void onAttachedToWindow() {
super.onAttachedToWindow();
mLockPatternView = findViewById(R.id.lockPattern);
mLockPatternView.setLockPatternSize(mLockPatternUtils.getLockPatternSize(mUserId));
mLockPatternView.setOnPatternListener(new UnlockPatternListener());
mLockPatternView.setInStealthMode(
!mLockPatternUtils.isVisiblePatternEnabled(mUserId));
}
}
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