Add DefaultAppShortcuts for Spa

Including the following,
- Home app
- Browser app
- Phone app
- Emergency app
- SMS app

Bug: 236346018
Test: Manual with App Info page
Test: Settings Unit tests
Change-Id: I4ceb31ed521b758a6f91d7e86fd34c780442b1ac

src/com/android/settings/spa/app/appinfo/AppInfoSettings.kt

@@ -98,6 +98,7 @@ private fun AppInfoSettings(packageInfoPresenter: PackageInfoPresenter) {
         // TODO: battery
         // TODO: app_language_setting
         AppOpenByDefaultPreference(app)
+        DefaultAppShortcuts(app)
 
         Category(title = stringResource(R.string.advanced_apps)) {
             DisplayOverOtherAppsAppListProvider.InfoPageEntryItem(app)

src/com/android/settings/spa/app/appinfo/DefaultAppShortcutPreference.kt

@@ -0,0 +1,111 @@
+/*
+ * 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.appinfo
+
+import android.app.role.RoleManager
+import android.content.Context
+import android.content.Intent
+import android.content.pm.ApplicationInfo
+import androidx.annotation.StringRes
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.livedata.observeAsState
+import androidx.compose.runtime.remember
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.stringResource
+import androidx.lifecycle.liveData
+import com.android.settings.R
+import com.android.settingslib.spa.widget.preference.Preference
+import com.android.settingslib.spa.widget.preference.PreferenceModel
+import com.android.settingslib.spaprivileged.framework.common.userManager
+import com.android.settingslib.spaprivileged.model.app.userHandle
+import com.android.settingslib.spaprivileged.model.app.userId
+import kotlin.coroutines.resume
+import kotlin.coroutines.suspendCoroutine
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.asExecutor
+import kotlinx.coroutines.async
+import kotlinx.coroutines.coroutineScope
+
+data class DefaultAppShortcut(
+    val roleName: String,
+    @StringRes val titleResId: Int,
+)
+
+@Composable
+fun DefaultAppShortcutPreference(shortcut: DefaultAppShortcut, app: ApplicationInfo) {
+    val context = LocalContext.current
+    val presenter = remember { DefaultAppShortcutPresenter(context, shortcut.roleName, app) }
+    if (!presenter.isAvailable()) return
+    if (presenter.isVisible().observeAsState().value != true) return
+
+    Preference(object : PreferenceModel {
+        override val title = stringResource(shortcut.titleResId)
+        override val summary = presenter.summaryLiveData.observeAsState(
+            initial = stringResource(R.string.summary_placeholder),
+        )
+        override val onClick = presenter::startActivity
+    })
+}
+
+private class DefaultAppShortcutPresenter(
+    private val context: Context,
+    private val roleName: String,
+    private val app: ApplicationInfo,
+) {
+    private val roleManager = context.getSystemService(RoleManager::class.java)!!
+    private val executor = Dispatchers.IO.asExecutor()
+
+    fun isAvailable() = !context.userManager.isManagedProfile(app.userId)
+
+    fun isVisible() = liveData {
+        coroutineScope {
+            val roleVisible = async { isRoleVisible() }
+            val applicationVisibleForRole = async { isApplicationVisibleForRole() }
+            emit(roleVisible.await() && applicationVisibleForRole.await())
+        }
+    }
+
+    private suspend fun isRoleVisible(): Boolean {
+        return suspendCoroutine { continuation ->
+            roleManager.isRoleVisible(roleName, executor) {
+                continuation.resume(it)
+            }
+        }
+    }
+
+    private suspend fun isApplicationVisibleForRole() = suspendCoroutine { continuation ->
+        roleManager.isApplicationVisibleForRole(roleName, app.packageName, executor) {
+            continuation.resume(it)
+        }
+    }
+
+    val summaryLiveData = liveData(Dispatchers.IO) {
+        val defaultApp = roleManager.getRoleHoldersAsUser(roleName, app.userHandle).firstOrNull()
+
+        emit(context.getString(when (defaultApp) {
+            app.packageName -> R.string.yes
+            else -> R.string.no
+        }))
+    }
+
+    fun startActivity() {
+        val intent = Intent(Intent.ACTION_MANAGE_DEFAULT_APP).apply {
+            putExtra(Intent.EXTRA_ROLE_NAME, roleName)
+        }
+        context.startActivityAsUser(intent, app.userHandle)
+    }
+}

src/com/android/settings/spa/app/appinfo/DefaultAppShortcuts.kt

@@ -0,0 +1,37 @@
+/*
+ * 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.appinfo
+
+import android.app.role.RoleManager
+import android.content.pm.ApplicationInfo
+import androidx.compose.runtime.Composable
+import com.android.settings.R
+
+@Composable
+fun DefaultAppShortcuts(app: ApplicationInfo) {
+    for (shortCut in SHORT_CUTS) {
+        DefaultAppShortcutPreference(shortCut, app)
+    }
+}
+
+private val SHORT_CUTS = listOf(
+    DefaultAppShortcut(RoleManager.ROLE_HOME, R.string.home_app),
+    DefaultAppShortcut(RoleManager.ROLE_BROWSER, R.string.default_browser_title),
+    DefaultAppShortcut(RoleManager.ROLE_DIALER, R.string.default_phone_title),
+    DefaultAppShortcut(RoleManager.ROLE_EMERGENCY, R.string.default_emergency_app),
+    DefaultAppShortcut(RoleManager.ROLE_SMS, R.string.sms_application_title),
+)