Add HibernationSwitchPreference for Spa

Bug: 236346018
Test: Manual with App Info page
Test: Settings Unit tests
Change-Id: I23140a2a16b3b5a4b569623504b1838a641611fe

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

@@ -100,6 +100,10 @@ private fun AppInfoSettings(packageInfoPresenter: PackageInfoPresenter) {
         AppOpenByDefaultPreference(app)
         DefaultAppShortcuts(app)
 
+        Category(title = stringResource(R.string.unused_apps_category)) {
+            HibernationSwitchPreference(app)
+        }
+
         Category(title = stringResource(R.string.advanced_apps)) {
             DisplayOverOtherAppsAppListProvider.InfoPageEntryItem(app)
             ModifySystemSettingsAppListProvider.InfoPageEntryItem(app)

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

@@ -0,0 +1,136 @@
+/*
+ * 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.AppOpsManager.MODE_ALLOWED
+import android.app.AppOpsManager.MODE_DEFAULT
+import android.app.AppOpsManager.MODE_IGNORED
+import android.app.AppOpsManager.OP_AUTO_REVOKE_PERMISSIONS_IF_UNUSED
+import android.content.Context
+import android.content.pm.ApplicationInfo
+import android.os.Build
+import android.permission.PermissionControllerManager.HIBERNATION_ELIGIBILITY_EXEMPT_BY_SYSTEM
+import android.permission.PermissionControllerManager.HIBERNATION_ELIGIBILITY_UNKNOWN
+import android.provider.DeviceConfig
+import android.provider.DeviceConfig.NAMESPACE_APP_HIBERNATION
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.derivedStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.ui.platform.LocalContext
+import com.android.settings.R
+import com.android.settings.Utils.PROPERTY_APP_HIBERNATION_ENABLED
+import com.android.settings.Utils.PROPERTY_HIBERNATION_TARGETS_PRE_S_APPS
+import com.android.settingslib.spa.framework.compose.OverridableFlow
+import com.android.settingslib.spa.framework.compose.collectAsStateWithLifecycle
+import com.android.settingslib.spa.framework.compose.stateOf
+import com.android.settingslib.spa.widget.preference.SwitchPreference
+import com.android.settingslib.spa.widget.preference.SwitchPreferenceModel
+import com.android.settingslib.spaprivileged.framework.common.appHibernationManager
+import com.android.settingslib.spaprivileged.framework.common.appOpsManager
+import com.android.settingslib.spaprivileged.framework.common.asUser
+import com.android.settingslib.spaprivileged.framework.common.permissionControllerManager
+import com.android.settingslib.spaprivileged.model.app.userHandle
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.asExecutor
+import kotlinx.coroutines.flow.flow
+import kotlinx.coroutines.withContext
+import kotlin.coroutines.resume
+import kotlin.coroutines.suspendCoroutine
+
+@Composable
+fun HibernationSwitchPreference(app: ApplicationInfo) {
+    val context = LocalContext.current
+    val presenter = remember { HibernationSwitchPresenter(context, app) }
+    if (!presenter.isAvailable()) return
+
+    val isEligibleState = presenter.isEligibleFlow.collectAsStateWithLifecycle(initialValue = false)
+    val isCheckedState = presenter.isCheckedFlow.collectAsStateWithLifecycle(initialValue = null)
+    SwitchPreference(remember {
+        object : SwitchPreferenceModel {
+            override val title = context.getString(R.string.unused_apps_switch)
+            override val summary = stateOf(context.getString(R.string.unused_apps_switch_summary))
+            override val changeable = isEligibleState
+
+            override val checked = derivedStateOf {
+                if (!changeable.value) false else isCheckedState.value
+            }
+
+            override val onCheckedChange = presenter::onCheckedChange
+        }
+    })
+}
+
+private class HibernationSwitchPresenter(context: Context, private val app: ApplicationInfo) {
+    private val appOpsManager = context.appOpsManager
+    private val permissionControllerManager =
+        context.asUser(app.userHandle).permissionControllerManager
+    private val appHibernationManager = context.appHibernationManager
+    private val executor = Dispatchers.IO.asExecutor()
+
+    fun isAvailable() =
+        DeviceConfig.getBoolean(NAMESPACE_APP_HIBERNATION, PROPERTY_APP_HIBERNATION_ENABLED, true)
+
+    val isEligibleFlow = flow {
+        val eligibility = getEligibility()
+        emit(
+            eligibility != HIBERNATION_ELIGIBILITY_EXEMPT_BY_SYSTEM &&
+                eligibility != HIBERNATION_ELIGIBILITY_UNKNOWN
+        )
+    }
+
+    private suspend fun getEligibility(): Int = suspendCoroutine { continuation ->
+        permissionControllerManager.getHibernationEligibility(app.packageName, executor) {
+            continuation.resume(it)
+        }
+    }
+
+    private val isChecked = OverridableFlow(flow {
+        emit(!isExempt())
+    })
+
+    val isCheckedFlow = isChecked.flow
+
+    private suspend fun isExempt(): Boolean = withContext(Dispatchers.IO) {
+        val mode = appOpsManager.checkOpNoThrow(
+            OP_AUTO_REVOKE_PERMISSIONS_IF_UNUSED, app.uid, app.packageName
+        )
+        if (mode == MODE_DEFAULT) isExemptByDefault() else mode != MODE_ALLOWED
+    }
+
+    private fun isExemptByDefault() =
+        !hibernationTargetsPreSApps() && app.targetSdkVersion <= Build.VERSION_CODES.Q
+
+    private fun hibernationTargetsPreSApps() = DeviceConfig.getBoolean(
+        NAMESPACE_APP_HIBERNATION, PROPERTY_HIBERNATION_TARGETS_PRE_S_APPS, false
+    )
+
+    fun onCheckedChange(newChecked: Boolean) {
+        try {
+            appOpsManager.setUidMode(
+                OP_AUTO_REVOKE_PERMISSIONS_IF_UNUSED,
+                app.uid,
+                if (newChecked) MODE_ALLOWED else MODE_IGNORED,
+            )
+            if (!newChecked) {
+                appHibernationManager.setHibernatingForUser(app.packageName, false)
+                appHibernationManager.setHibernatingGlobally(app.packageName, false)
+            }
+            isChecked.override(newChecked)
+        } catch (_: RuntimeException) {
+        }
+    }
+}

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

@@ -16,7 +16,6 @@
 
 package com.android.settings.spa.app.specialaccess
 
-import android.app.AlarmManager
 import android.app.AppOpsManager
 import android.app.AppOpsManager.MODE_ALLOWED
 import android.app.AppOpsManager.MODE_ERRORED
@@ -24,21 +23,23 @@ import android.content.Context
 import android.content.pm.ApplicationInfo
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.MutableLiveData
+import com.android.settingslib.spaprivileged.framework.common.alarmManager
+import com.android.settingslib.spaprivileged.framework.common.appOpsManager
 import com.android.settingslib.spaprivileged.model.app.userId
 
 class AlarmsAndRemindersController(
     context: Context,
     private val app: ApplicationInfo,
 ) {
-    private val alarmManager = context.getSystemService(AlarmManager::class.java)!!
-    private val appOpsManager = context.getSystemService(AppOpsManager::class.java)!!
+    private val alarmManager = context.alarmManager
+    private val appOpsManager = context.appOpsManager
 
     val isAllowed: LiveData<Boolean>
         get() = _allowed
 
     fun setAllowed(allowed: Boolean) {
         val mode = if (allowed) MODE_ALLOWED else MODE_ERRORED
-        appOpsManager.setUidMode(AppOpsManager.OPSTR_SCHEDULE_EXACT_ALARM, app.uid, mode)
+        appOpsManager.setUidMode(AppOpsManager.OP_SCHEDULE_EXACT_ALARM, app.uid, mode)
         _allowed.postValue(allowed)
     }
 
@@ -46,8 +47,5 @@ class AlarmsAndRemindersController(
         override fun onActive() {
             postValue(alarmManager.hasScheduleExactAlarm(app.packageName, app.userId))
         }
-
-        override fun onInactive() {
-        }
     }
 }

tests/spa_unit/AndroidManifest.xml

@@ -19,6 +19,8 @@
           xmlns:tools="http://schemas.android.com/tools"
           package="com.android.settings.tests.spa_unit">
 
+    <uses-permission android:name="android.permission.WRITE_DEVICE_CONFIG" />
+
     <application android:debuggable="true">
         <provider android:name="com.android.settings.slices.SettingsSliceProvider"
                   android:authorities="${applicationId}.slices"

tests/spa_unit/src/com/android/settings/spa/app/appinfo/HibernationSwitchPreferenceTest.kt

@@ -0,0 +1,251 @@
+/*
+ * 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.AppOpsManager
+import android.app.AppOpsManager.MODE_ALLOWED
+import android.app.AppOpsManager.MODE_DEFAULT
+import android.app.AppOpsManager.MODE_IGNORED
+import android.app.AppOpsManager.OP_AUTO_REVOKE_PERMISSIONS_IF_UNUSED
+import android.apphibernation.AppHibernationManager
+import android.content.Context
+import android.content.pm.ApplicationInfo
+import android.os.Build
+import android.os.UserHandle
+import android.permission.PermissionControllerManager
+import android.permission.PermissionControllerManager.HIBERNATION_ELIGIBILITY_ELIGIBLE
+import android.permission.PermissionControllerManager.HIBERNATION_ELIGIBILITY_EXEMPT_BY_SYSTEM
+import android.provider.DeviceConfig.NAMESPACE_APP_HIBERNATION
+import androidx.compose.runtime.CompositionLocalProvider
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.test.assertIsDisplayed
+import androidx.compose.ui.test.assertIsEnabled
+import androidx.compose.ui.test.assertIsNotDisplayed
+import androidx.compose.ui.test.assertIsNotEnabled
+import androidx.compose.ui.test.assertIsOff
+import androidx.compose.ui.test.assertIsOn
+import androidx.compose.ui.test.isToggleable
+import androidx.compose.ui.test.junit4.createComposeRule
+import androidx.compose.ui.test.onNodeWithText
+import androidx.compose.ui.test.onRoot
+import androidx.compose.ui.test.performClick
+import androidx.test.core.app.ApplicationProvider
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import com.android.settings.R
+import com.android.settings.Utils.PROPERTY_APP_HIBERNATION_ENABLED
+import com.android.settings.Utils.PROPERTY_HIBERNATION_TARGETS_PRE_S_APPS
+import com.android.settings.testutils.TestDeviceConfig
+import com.android.settingslib.spaprivileged.framework.common.appHibernationManager
+import com.android.settingslib.spaprivileged.framework.common.appOpsManager
+import com.android.settingslib.spaprivileged.framework.common.permissionControllerManager
+import org.junit.After
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mockito.Mock
+import org.mockito.Mockito.any
+import org.mockito.Mockito.anyBoolean
+import org.mockito.Mockito.anyString
+import org.mockito.Mockito.doAnswer
+import org.mockito.Mockito.doReturn
+import org.mockito.Mockito.eq
+import org.mockito.Mockito.never
+import org.mockito.Mockito.verify
+import org.mockito.Spy
+import org.mockito.junit.MockitoJUnit
+import org.mockito.junit.MockitoRule
+import java.util.function.IntConsumer
+import org.mockito.Mockito.`when` as whenever
+
+@RunWith(AndroidJUnit4::class)
+class HibernationSwitchPreferenceTest {
+
+    @JvmField
+    @Rule
+    val mockito: MockitoRule = MockitoJUnit.rule()
+
+    @get:Rule
+    val composeTestRule = createComposeRule()
+
+    @Spy
+    private val context: Context = ApplicationProvider.getApplicationContext()
+
+    @Mock
+    private lateinit var permissionControllerManager: PermissionControllerManager
+
+    @Mock
+    private lateinit var appOpsManager: AppOpsManager
+
+    @Mock
+    private lateinit var appHibernationManager: AppHibernationManager
+
+    private val hibernationEnabledConfig =
+        TestDeviceConfig(NAMESPACE_APP_HIBERNATION, PROPERTY_APP_HIBERNATION_ENABLED)
+
+    private val hibernationTargetsPreSConfig =
+        TestDeviceConfig(NAMESPACE_APP_HIBERNATION, PROPERTY_HIBERNATION_TARGETS_PRE_S_APPS)
+
+    @Before
+    fun setUp() {
+        hibernationEnabledConfig.override(true)
+        hibernationTargetsPreSConfig.override(false)
+        doReturn(context)
+            .`when`(context).createContextAsUser(UserHandle.getUserHandleForUid(UID), 0)
+        whenever(context.permissionControllerManager).thenReturn(permissionControllerManager)
+        whenever(context.appOpsManager).thenReturn(appOpsManager)
+        whenever(context.appHibernationManager).thenReturn(appHibernationManager)
+        mockHibernationEligibility(HIBERNATION_ELIGIBILITY_ELIGIBLE)
+    }
+
+    @After
+    fun cleanUp() {
+        hibernationEnabledConfig.reset()
+        hibernationTargetsPreSConfig.reset()
+    }
+
+    private fun mockHibernationEligibility(eligibility: Int) {
+        doAnswer {
+            @Suppress("UNCHECKED_CAST")
+            (it.arguments[2] as IntConsumer).accept(eligibility)
+        }.`when`(permissionControllerManager).getHibernationEligibility(
+            eq(PACKAGE_NAME), any(), any()
+        )
+    }
+
+    private fun mockOpsMode(mode: Int) {
+        whenever(
+            appOpsManager.checkOpNoThrow(OP_AUTO_REVOKE_PERMISSIONS_IF_UNUSED, UID, PACKAGE_NAME)
+        ).thenReturn(mode)
+    }
+
+    @Test
+    fun `Hibernation disabled - not display`() {
+        hibernationEnabledConfig.override(false)
+
+        setContent()
+
+        composeTestRule.onRoot().assertIsNotDisplayed()
+    }
+
+    @Test
+    fun `Not eligible - displayed but disabled`() {
+        mockHibernationEligibility(HIBERNATION_ELIGIBILITY_EXEMPT_BY_SYSTEM)
+
+        setContent()
+
+        composeTestRule.onNodeWithText(context.getString(R.string.unused_apps_switch))
+            .assertIsDisplayed()
+            .assertIsNotEnabled()
+            .assertIsOff()
+    }
+
+    @Test
+    fun `An app targets Q with ops mode default when hibernation targets pre S - not exempted`() {
+        mockOpsMode(MODE_DEFAULT)
+        hibernationTargetsPreSConfig.override(true)
+
+        setContent(TARGET_Q_APP)
+
+        composeTestRule.onNode(isToggleable()).assertIsEnabled().assertIsOn()
+    }
+
+    @Test
+    fun `An app targets Q with ops mode default when hibernation targets R - exempted`() {
+        mockOpsMode(MODE_DEFAULT)
+        hibernationTargetsPreSConfig.override(false)
+
+        setContent(TARGET_Q_APP)
+
+        composeTestRule.onNode(isToggleable()).assertIsEnabled().assertIsOff()
+    }
+
+    @Test
+    fun `An app targets R with ops mode default - not exempted`() {
+        mockOpsMode(MODE_DEFAULT)
+
+        setContent(TARGET_R_APP)
+
+        composeTestRule.onNode(isToggleable()).assertIsEnabled().assertIsOn()
+    }
+
+    @Test
+    fun `An app with ops mode allowed - not exempted`() {
+        mockOpsMode(MODE_ALLOWED)
+
+        setContent()
+
+        composeTestRule.onNode(isToggleable()).assertIsEnabled().assertIsOn()
+    }
+
+    @Test
+    fun `An app with ops mode ignored - exempted`() {
+        mockOpsMode(MODE_IGNORED)
+
+        setContent()
+
+        composeTestRule.onNode(isToggleable()).assertIsEnabled().assertIsOff()
+    }
+
+    @Test
+    fun `An app is exempted - on click`() {
+        mockOpsMode(MODE_IGNORED)
+
+        setContent()
+        composeTestRule.onRoot().performClick()
+
+        verify(appOpsManager).setUidMode(OP_AUTO_REVOKE_PERMISSIONS_IF_UNUSED, UID, MODE_ALLOWED)
+        verify(appHibernationManager, never()).setHibernatingForUser(anyString(), anyBoolean())
+        verify(appHibernationManager, never()).setHibernatingGlobally(anyString(), anyBoolean())
+    }
+
+    @Test
+    fun `An app is not exempted - on click`() {
+        mockOpsMode(MODE_ALLOWED)
+
+        setContent()
+        composeTestRule.onRoot().performClick()
+
+        verify(appOpsManager).setUidMode(OP_AUTO_REVOKE_PERMISSIONS_IF_UNUSED, UID, MODE_IGNORED)
+        verify(appHibernationManager).setHibernatingForUser(PACKAGE_NAME, false)
+        verify(appHibernationManager).setHibernatingGlobally(PACKAGE_NAME, false)
+    }
+
+    private fun setContent(app: ApplicationInfo = TARGET_R_APP) {
+        composeTestRule.setContent {
+            CompositionLocalProvider(LocalContext provides context) {
+                HibernationSwitchPreference(app)
+            }
+        }
+    }
+
+    private companion object {
+        const val PACKAGE_NAME = "package name"
+        const val UID = 123
+
+        val TARGET_R_APP = ApplicationInfo().apply {
+            packageName = PACKAGE_NAME
+            uid = UID
+            targetSdkVersion = Build.VERSION_CODES.R
+        }
+        val TARGET_Q_APP = ApplicationInfo().apply {
+            packageName = PACKAGE_NAME
+            uid = UID
+            targetSdkVersion = Build.VERSION_CODES.Q
+        }
+    }
+}

tests/spa_unit/src/com/android/settings/testutils/TestDeviceConfig.kt

@@ -0,0 +1,36 @@
+/*
+ * 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.testutils
+
+import android.provider.DeviceConfig
+
+/**
+ * A util class used to override [DeviceConfig] value for testing purpose.
+ */
+class TestDeviceConfig(private val namespace: String, private val name: String) {
+    private val initialValue = DeviceConfig.getProperty(namespace, name)
+
+    /** Overrides the property value. */
+    fun override(value: Boolean) {
+        DeviceConfig.setProperty(namespace, name, value.toString(), false)
+    }
+
+    /** Resets the property to its initial value before the testing. */
+    fun reset() {
+        DeviceConfig.setProperty(namespace, name, initialValue, false)
+    }
+}