Add PictureInPicture to Spa

Bug: 235727273
Test: Manual with Settings App
Change-Id: I6ef15dd49fd74ba2d59a8e55c0b7a6c2cd1cd928

src/com/android/settings/spa/app/specialaccess/InstallUnknownApps.kt

@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2022 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.settings.spa.app.specialaccess
+
+import android.Manifest
+import android.app.AppGlobals
+import android.app.AppOpsManager.MODE_DEFAULT
+import android.app.AppOpsManager.OP_REQUEST_INSTALL_PACKAGES
+import android.content.Context
+import android.content.pm.ApplicationInfo
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.livedata.observeAsState
+import com.android.settings.R
+import com.android.settingslib.spaprivileged.model.app.AppOpsController
+import com.android.settingslib.spaprivileged.model.app.AppRecord
+import com.android.settingslib.spaprivileged.model.app.userId
+import com.android.settingslib.spaprivileged.template.app.TogglePermissionAppListModel
+import com.android.settingslib.spaprivileged.template.app.TogglePermissionAppListProvider
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.combine
+import kotlinx.coroutines.flow.map
+
+object InstallUnknownAppsListProvider : TogglePermissionAppListProvider {
+    override val permissionType = "InstallUnknownApps"
+    override fun createModel(context: Context) = InstallUnknownAppsListModel(context)
+}
+
+data class InstallUnknownAppsRecord(
+    override val app: ApplicationInfo,
+    val appOpsController: AppOpsController,
+) : AppRecord
+
+class InstallUnknownAppsListModel(private val context: Context) :
+    TogglePermissionAppListModel<InstallUnknownAppsRecord> {
+    override val pageTitleResId = R.string.install_other_apps
+    override val switchTitleResId = R.string.external_source_switch_title
+    override val footerResId = R.string.install_all_warning
+
+    override fun transformItem(app: ApplicationInfo) = InstallUnknownAppsRecord(
+        app = app,
+        appOpsController = AppOpsController(
+            context = context,
+            app = app,
+            op = OP_REQUEST_INSTALL_PACKAGES,
+        ),
+    )
+
+    override fun filter(
+        userIdFlow: Flow<Int>, recordListFlow: Flow<List<InstallUnknownAppsRecord>>,
+    ) = userIdFlow.map(::getPotentialPackageNames)
+        .combine(recordListFlow) { potentialPackageNames, recordList ->
+            recordList.filter { record ->
+                isChangeable(record, potentialPackageNames)
+            }
+        }
+
+    @Composable
+    override fun isAllowed(record: InstallUnknownAppsRecord) =
+        record.appOpsController.isAllowed.observeAsState()
+
+    override fun isChangeable(record: InstallUnknownAppsRecord) =
+        isChangeable(record, getPotentialPackageNames(record.app.userId))
+
+    override fun setAllowed(record: InstallUnknownAppsRecord, newAllowed: Boolean) {
+        record.appOpsController.setAllowed(newAllowed)
+    }
+
+    companion object {
+        private fun isChangeable(
+            record: InstallUnknownAppsRecord,
+            potentialPackageNames: Set<String>,
+        ) = record.appOpsController.getMode() != MODE_DEFAULT ||
+                record.app.packageName in potentialPackageNames
+
+        private fun getPotentialPackageNames(userId: Int): Set<String> =
+            AppGlobals.getPackageManager().getAppOpPermissionPackages(
+                Manifest.permission.REQUEST_INSTALL_PACKAGES, userId
+            ).toSet()
+    }
+}