1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
|
/*
* Copyright (C) 2021 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.permissioncontroller.permission.ui.model
import android.app.Application
import androidx.lifecycle.AndroidViewModel
import androidx.lifecycle.LiveData
import androidx.lifecycle.MediatorLiveData
import com.android.permissioncontroller.permission.data.PermGroupsPackagesUiInfoLiveData
import com.android.permissioncontroller.permission.data.StandardPermGroupNamesLiveData
import com.android.permissioncontroller.permission.model.livedatatypes.PermGroupPackagesUiInfo
/**
* A [androidx.lifecycle.ViewModel] for [ManagePermissionsFragment] and
* [ManagePermissionsOtherFragment].
* However, [ManagePermissionsViewModel] is designed in a way so that its owner should be an
* [Activity][androidx.fragment.app.FragmentActivity] rather than individual
* [Fragments][androidx.fragment.app.Fragment], and the aforementioned Fragments that manage
* different sets of the permission groups should to share a single instance of
* [ManagePermissionsViewModel].
*/
class ManagePermissionsViewModel(app: Application) : AndroidViewModel(app) {
/**
* [LiveData] that contains a list of all platform-defined permission groups.
*/
val standardPermGroupsLiveData: LiveData<List<PermGroupPackagesUiInfo>> =
MediatorLiveData<List<PermGroupPackagesUiInfo>>().apply {
addSource(PermGroupsPackagesUiInfoLiveData(app, StandardPermGroupNamesLiveData)) {
permGroups -> value = permGroups.values.filterNotNull()
}
}
/**
* [LiveData] that contains a list of platform-defined permission groups, such
* that at least one the permissions in the group has been requested at runtime by at least one
* non-system application or has been pregranted to a non-system application.
* @see com.android.permissioncontroller.permission.ui.television.ManagePermissionsFragment
*/
val usedPermissionGroups: LiveData<List<PermGroupPackagesUiInfo>> =
MediatorLiveData<List<PermGroupPackagesUiInfo>>().apply {
addSource(standardPermGroupsLiveData) {
permGroups -> value = permGroups.filter { it.nonSystemUserSetOrPreGranted > 0 }
}
}
/**
* [LiveData] that contains a list of platform-defined permission groups, such that all
* of the permissions in the group neither has been requested at runtime by any of the
* non-system applications nor has been pregranted to any such application. But at least one of
* the permissions in the group is requested by or pregranted to at least one system
* application, other than the Shell (we do not show permission groups that are granted only to
* the Shell, because it has all the permissions granted).
* @see com.android.permissioncontroller.permission.ui.television.ManagePermissionsOtherFragment
*/
val unusedPermissionGroups: LiveData<List<PermGroupPackagesUiInfo>> =
MediatorLiveData<List<PermGroupPackagesUiInfo>>().apply {
addSource(standardPermGroupsLiveData) {
permGroups -> value = permGroups
.filter { it.nonSystemUserSetOrPreGranted == 0 }
.filter { it.systemUserSetOrPreGranted > 0 }
.filterNot { it.onlyShellPackageGranted }
}
}
/**
* [LiveData] that contains a list of the application-defined permission groups
* (a.k.a. "custom" permissions), such that at least one of the permissions in the group has
* been requested at runtime by or has been pregranted to at least one application (system or
* non-system).
* @see com.android.permissioncontroller.permission.ui.television.ManagePermissionsOtherFragment
*/
val additionalPermissionGroups: LiveData<List<PermGroupPackagesUiInfo>> =
MediatorLiveData<List<PermGroupPackagesUiInfo>>().apply {
addSource(PermGroupsPackagesUiInfoLiveData(
app, UsedCustomPermGroupNamesLiveData())) {
permGroups -> value = permGroups.values
.filterNotNull()
.filter {
(it.nonSystemUserSetOrPreGranted > 0) or (it.systemUserSetOrPreGranted > 0)
}
}
}
/**
* [LiveData] that indicates whether there any unused or additional permission groups.
* @see com.android.permissioncontroller.permission.ui.television.ManagePermissionsFragment
*/
@get:JvmName("hasUnusedOrAdditionalPermissionGroups")
val hasUnusedOrAdditionalPermissionGroups: LiveData<Boolean> =
MediatorLiveData<Boolean>().apply {
val updateValue: (Any?) -> Unit = {
value = !unusedPermissionGroups.value.isNullOrEmpty() ||
!additionalPermissionGroups.value.isNullOrEmpty()
}
addSource(unusedPermissionGroups, updateValue)
addSource(additionalPermissionGroups, updateValue)
}
}
|
