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/*
* Copyright (C) 2023 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.grantPermissions
import android.Manifest.permission.ACCESS_MEDIA_LOCATION
import android.Manifest.permission.READ_MEDIA_VISUAL_USER_SELECTED
import android.Manifest.permission_group.READ_MEDIA_VISUAL
import android.Manifest.permission_group.STORAGE
import android.os.Build
import com.android.modules.utils.build.SdkLevel
import com.android.permissioncontroller.permission.model.livedatatypes.LightAppPermGroup
import com.android.permissioncontroller.permission.ui.model.DenyButton
import com.android.permissioncontroller.permission.ui.model.Prompt
import com.android.permissioncontroller.permission.utils.KotlinUtils.isPhotoPickerPromptEnabled
import com.android.permissioncontroller.permission.utils.KotlinUtils.isPhotoPickerPromptSupported
/**
* Storage split from one group (STORAGE) into two (READ_MEDIA_VISUAL and READ_MEDIA_AURAL) in T.
* There are special dialogs to deal with a pre-T app requesting STORAGE on a post-T device. In U,
* the READ_MEDIA_VISUAL group was augmented with the option to select photos, which led to several
* new dialogs to handle that.
*/
object StorageGrantBehavior : GrantBehavior() {
override fun getPrompt(
group: LightAppPermGroup,
requestedPerms: Set<String>,
isSystemTriggeredPrompt: Boolean
): Prompt {
val appSupportsSplitStoragePermissions = appSupportsSplitStoragePermissions(group)
if (!SdkLevel.isAtLeastT()) {
return Prompt.BASIC
} else if (appSupportsSplitStoragePermissions && group.permGroupName == STORAGE) {
return Prompt.NO_UI_REJECT_THIS_GROUP
}
if (appSupportsSplitStoragePermissions && !shouldShowPhotoPickerPromptForApp(group)) {
return Prompt.BASIC
}
if (!appSupportsSplitStoragePermissions) {
if (group.packageInfo.targetSdkVersion < Build.VERSION_CODES.Q) {
return Prompt.STORAGE_SUPERGROUP_PRE_Q
} else {
return Prompt.STORAGE_SUPERGROUP_Q_TO_S
}
}
// Else, app supports the new photo picker dialog
if (requestedPerms.all { it in getPartialGrantPermissions(group) }) {
// Do not allow apps to request only READ_MEDIA_VISUAL_USER_SELECTED
return Prompt.NO_UI_REJECT_THIS_GROUP
}
val userSelectedPerm = group.permissions[READ_MEDIA_VISUAL_USER_SELECTED]
if (userSelectedPerm?.isUserFixed == true && userSelectedPerm.isGrantedIncludingAppOp) {
return Prompt.NO_UI_PHOTO_PICKER_REDIRECT
}
if (userSelectedPerm?.isGrantedIncludingAppOp == true) {
return Prompt.SELECT_MORE_PHOTOS
} else {
return Prompt.SELECT_PHOTOS
}
}
override fun getDenyButton(
group: LightAppPermGroup,
requestedPerms: Set<String>,
prompt: Prompt
): DenyButton {
if (prompt == Prompt.SELECT_MORE_PHOTOS) {
return DenyButton.DONT_SELECT_MORE
}
return BasicGrantBehavior.getDenyButton(group, requestedPerms, prompt)
}
override fun isGroupFullyGranted(
group: LightAppPermGroup,
requestedPerms: Set<String>
): Boolean {
if (!isPhotoPickerPromptSupported() || group.permGroupName != READ_MEDIA_VISUAL) {
return super.isGroupFullyGranted(group, requestedPerms)
}
return group.permissions.values.any {
it.name !in getPartialGrantPermissions(group) && it.isGrantedIncludingAppOp
}
}
override fun isPermissionFixed(group: LightAppPermGroup, perm: String): Boolean {
val userSelectedPerm = group.permissions[READ_MEDIA_VISUAL_USER_SELECTED]
if (
userSelectedPerm != null &&
userSelectedPerm.isGrantedIncludingAppOp &&
userSelectedPerm.isUserFixed
) {
// If the user selected permission is fixed and granted, we immediately show the
// photo picker, rather than filtering
return false
}
return super.isPermissionFixed(group, perm)
}
private fun appSupportsSplitStoragePermissions(group: LightAppPermGroup) =
SdkLevel.isAtLeastT() && group.packageInfo.targetSdkVersion >= Build.VERSION_CODES.TIRAMISU
private fun shouldShowPhotoPickerPromptForApp(group: LightAppPermGroup) =
isPhotoPickerPromptEnabled() &&
group.permGroupName == READ_MEDIA_VISUAL &&
(group.packageInfo.targetSdkVersion >= Build.VERSION_CODES.UPSIDE_DOWN_CAKE ||
appSupportsPhotoPicker(group))
private fun appSupportsPhotoPicker(group: LightAppPermGroup) =
group.packageInfo.targetSdkVersion >= Build.VERSION_CODES.TIRAMISU &&
group.permissions[READ_MEDIA_VISUAL_USER_SELECTED]?.isImplicit == false
private fun getPartialGrantPermissions(group: LightAppPermGroup): Set<String> {
return if (appSupportsPhotoPicker(group) && shouldShowPhotoPickerPromptForApp(group)) {
setOf(READ_MEDIA_VISUAL_USER_SELECTED, ACCESS_MEDIA_LOCATION)
} else {
setOf(READ_MEDIA_VISUAL_USER_SELECTED)
}
}
}
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