1 /*
2  * Copyright (C) 2023 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.systemui.biometrics
18 
19 import android.content.res.Resources
20 import android.os.Bundle
21 import android.view.View
22 import android.view.accessibility.AccessibilityNodeInfo
23 import com.android.keyguard.FaceAuthApiRequestReason
24 import com.android.keyguard.KeyguardUpdateMonitor
25 import com.android.systemui.R
26 import com.android.systemui.dagger.SysUISingleton
27 import com.android.systemui.dagger.qualifiers.Main
28 import com.android.systemui.keyguard.domain.interactor.KeyguardFaceAuthInteractor
29 import javax.inject.Inject
30 
31 /**
32  * Accessibility delegate that will add a click accessibility action to a view when face auth can
33  * run. When the click a11y action is triggered, face auth will retry.
34  */
35 @SysUISingleton
36 class FaceAuthAccessibilityDelegate
37 @Inject
38 constructor(
39     @Main private val resources: Resources,
40     private val keyguardUpdateMonitor: KeyguardUpdateMonitor,
41     private val faceAuthInteractor: KeyguardFaceAuthInteractor,
42 ) : View.AccessibilityDelegate() {
43     override fun onInitializeAccessibilityNodeInfo(host: View, info: AccessibilityNodeInfo) {
44         super.onInitializeAccessibilityNodeInfo(host, info)
45         if (keyguardUpdateMonitor.shouldListenForFace()) {
46             val clickActionToRetryFace =
47                 AccessibilityNodeInfo.AccessibilityAction(
48                     AccessibilityNodeInfo.AccessibilityAction.ACTION_CLICK.id,
49                     resources.getString(R.string.retry_face)
50                 )
51             info.addAction(clickActionToRetryFace)
52         }
53     }
54 
55     override fun performAccessibilityAction(host: View, action: Int, args: Bundle?): Boolean {
56         return if (action == AccessibilityNodeInfo.AccessibilityAction.ACTION_CLICK.id) {
57             keyguardUpdateMonitor.requestFaceAuth(FaceAuthApiRequestReason.ACCESSIBILITY_ACTION)
58             faceAuthInteractor.onAccessibilityAction()
59             true
60         } else super.performAccessibilityAction(host, action, args)
61     }
62 }
63