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 package com.android.systemui.screenshot
17 
18 import android.app.Notification
19 import android.app.NotificationManager
20 import android.app.PendingIntent
21 import android.app.admin.DevicePolicyManager
22 import android.content.Context
23 import android.os.UserHandle
24 import android.view.Display
25 import com.android.internal.R
26 import com.android.internal.messages.nano.SystemMessageProto
27 import com.android.systemui.SystemUIApplication
28 import com.android.systemui.util.NotificationChannels
29 import dagger.assisted.Assisted
30 import dagger.assisted.AssistedFactory
31 import dagger.assisted.AssistedInject
32 
33 /** Convenience class to handle showing and hiding notifications while taking a screenshot. */
34 class ScreenshotNotificationsController
35 @AssistedInject
36 internal constructor(
37     @Assisted private val displayId: Int,
38     private val context: Context,
39     private val notificationManager: NotificationManager,
40     private val devicePolicyManager: DevicePolicyManager,
41 ) {
42     private val res = context.resources
43 
44     /**
45      * Sends a notification that the screenshot capture has failed.
46      *
47      * Errors for the non-default display are shown in a unique separate notification.
48      */
notifyScreenshotErrornull49     fun notifyScreenshotError(msgResId: Int) {
50         val displayErrorString =
51             if (displayId != Display.DEFAULT_DISPLAY) {
52                 " ($externalDisplayString)"
53             } else {
54                 ""
55             }
56         val errorMsg = res.getString(msgResId) + displayErrorString
57 
58         // Repurpose the existing notification or create a new one
59         val builder =
60             Notification.Builder(context, NotificationChannels.ALERTS)
61                 .setTicker(res.getString(com.android.systemui.res.R.string.screenshot_failed_title))
62                 .setContentTitle(
63                     res.getString(com.android.systemui.res.R.string.screenshot_failed_title)
64                 )
65                 .setContentText(errorMsg)
66                 .setSmallIcon(com.android.systemui.res.R.drawable.stat_notify_image_error)
67                 .setWhen(System.currentTimeMillis())
68                 .setVisibility(Notification.VISIBILITY_PUBLIC) // ok to show outside lockscreen
69                 .setCategory(Notification.CATEGORY_ERROR)
70                 .setAutoCancel(true)
71                 .setColor(context.getColor(R.color.system_notification_accent_color))
72         val intent =
73             devicePolicyManager.createAdminSupportIntent(
74                 DevicePolicyManager.POLICY_DISABLE_SCREEN_CAPTURE
75             )
76         if (intent != null) {
77             val pendingIntent =
78                 PendingIntent.getActivityAsUser(
79                     context,
80                     0,
81                     intent,
82                     PendingIntent.FLAG_IMMUTABLE,
83                     null,
84                     UserHandle.CURRENT
85                 )
86             builder.setContentIntent(pendingIntent)
87         }
88         SystemUIApplication.overrideNotificationAppName(context, builder, true)
89         val notification = Notification.BigTextStyle(builder).bigText(errorMsg).build()
90         // A different id for external displays to keep the 2 error notifications separated.
91         val id =
92             if (displayId == Display.DEFAULT_DISPLAY) {
93                 SystemMessageProto.SystemMessage.NOTE_GLOBAL_SCREENSHOT
94             } else {
95                 SystemMessageProto.SystemMessage.NOTE_GLOBAL_SCREENSHOT_EXTERNAL_DISPLAY
96             }
97         notificationManager.notify(id, notification)
98     }
99 
100     private val externalDisplayString: String
101         get() =
102             res.getString(
103                 com.android.systemui.res.R.string.screenshot_failed_external_display_indication
104             )
105 
106     /** Factory for [ScreenshotNotificationsController]. */
107     @AssistedFactory
interfacenull108     fun interface Factory {
109         fun create(displayId: Int): ScreenshotNotificationsController
110     }
111 }
112