Add SpaAppBridgeActivity for application usage

This requires the user to pass into the package name, which enabling
the feature of navigating to app info pages.

Bug: 263553430
Test: Manually with Settings
Change-Id: I9405e3732d99f78cd87e62d73b0c9519a8e2d71f

AndroidManifest.xml

@@ -4744,6 +4744,7 @@
             android:configChanges="orientation|screenLayout|screenSize|smallestScreenSize"
             android:exported="false" />
         <activity android:name=".spa.SpaBridgeActivity" android:exported="false"/>
+        <activity android:name=".spa.SpaAppBridgeActivity" android:exported="false"/>
 
         <activity-alias android:name="UsageStatsActivity"
                         android:exported="true"

src/com/android/settings/spa/SpaActivity.kt

@@ -18,16 +18,27 @@ package com.android.settings.spa
 
 import android.content.Context
 import android.content.Intent
+import android.os.UserHandle
 import com.android.settingslib.spa.framework.BrowseActivity
 import com.android.settingslib.spa.framework.util.appendSpaParams
 
 class SpaActivity : BrowseActivity() {
     companion object {
         @JvmStatic
-        fun startSpaActivity(context: Context, destination: String) {
+        fun Context.startSpaActivity(destination: String) {
-            val intent = Intent(context, SpaActivity::class.java)
+            val intent = Intent(this, SpaActivity::class.java)
                 .appendSpaParams(destination = destination)
-            context.startActivity(intent)
+            startActivity(intent)
+        }
+
+        @JvmStatic
+        fun Context.startSpaActivityForApp(destinationPrefix: String, intent: Intent): Boolean {
+            val packageName = intent.data?.schemeSpecificPart ?: return false
+            val userId = intent.getParcelableExtra(Intent.EXTRA_USER_HANDLE, UserHandle::class.java)
+                ?.identifier
+                ?: UserHandle.myUserId()
+            startSpaActivity("$destinationPrefix/$packageName/$userId")
+            return true
         }
     }
 }

src/com/android/settings/spa/SpaAppBridgeActivity.kt

@@ -0,0 +1,39 @@
+/*
+ * 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
+
+import android.app.Activity
+import android.os.Bundle
+import com.android.settings.spa.SpaActivity.Companion.startSpaActivityForApp
+import com.android.settings.spa.SpaBridgeActivity.Companion.getDestination
+
+/**
+ * Activity used as a bridge to [SpaActivity] with package scheme for application usage.
+ *
+ * Since [SpaActivity] is not exported, [SpaActivity] could not be the target activity of
+ * <activity-alias>, otherwise all its pages will be exported.
+ * So need this bridge activity to sit in the middle of <activity-alias> and [SpaActivity].
+ */
+class SpaAppBridgeActivity : Activity() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        getDestination()?.let { destination ->
+            startSpaActivityForApp(destination, intent)
+        }
+        finish()
+    }
+}

src/com/android/settings/spa/SpaBridgeActivity.kt

@@ -33,17 +33,17 @@ class SpaBridgeActivity : Activity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         getDestination()?.let { destination ->
-            startSpaActivity(this, destination)
+            startSpaActivity(destination)
         }
         finish()
     }
 
-    private fun getDestination(): String? =
+    companion object {
+        fun Activity.getDestination(): String? =
             packageManager.getActivityInfo(
                 componentName, ComponentInfoFlags.of(PackageManager.GET_META_DATA.toLong())
             ).metaData.getString(META_DATA_KEY_DESTINATION)
 
-    companion object {
         private const val META_DATA_KEY_DESTINATION = "com.android.settings.spa.DESTINATION"
     }
 }

tests/spa_unit/src/com/android/settings/spa/SpaActivityTest.kt

@@ -0,0 +1,78 @@
+/*
+ * 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
+
+import android.content.Context
+import android.content.Intent
+import android.net.Uri
+import android.os.UserHandle
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import com.android.settings.spa.SpaActivity.Companion.startSpaActivity
+import com.android.settings.spa.SpaActivity.Companion.startSpaActivityForApp
+import com.android.settingslib.spa.framework.util.KEY_DESTINATION
+import com.google.common.truth.Truth.assertThat
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mockito.ArgumentCaptor
+import org.mockito.Mock
+import org.mockito.Mockito.verify
+import org.mockito.junit.MockitoJUnit
+import org.mockito.junit.MockitoRule
+
+@RunWith(AndroidJUnit4::class)
+class SpaActivityTest {
+    @get:Rule
+    val mockito: MockitoRule = MockitoJUnit.rule()
+
+    @Mock
+    private lateinit var context: Context
+
+    @Test
+    fun startSpaActivity() {
+        context.startSpaActivity(DESTINATION)
+
+        val intentCaptor = ArgumentCaptor.forClass(Intent::class.java)
+        verify(context).startActivity(intentCaptor.capture())
+        val intent = intentCaptor.value
+        assertThat(intent.component?.className).isEqualTo(SpaActivity::class.qualifiedName)
+        assertThat(intent.getStringExtra(KEY_DESTINATION)).isEqualTo(DESTINATION)
+    }
+
+    @Test
+    fun startSpaActivityForApp() {
+        val intent = Intent().apply {
+            data = Uri.parse("package:$PACKAGE_NAME")
+            putExtra(Intent.EXTRA_USER_HANDLE, UserHandle.of(USER_ID))
+        }
+
+        context.startSpaActivityForApp(DESTINATION, intent)
+
+        val intentCaptor = ArgumentCaptor.forClass(Intent::class.java)
+        verify(context).startActivity(intentCaptor.capture())
+        val capturedIntent = intentCaptor.value
+        assertThat(capturedIntent.component?.className).isEqualTo(SpaActivity::class.qualifiedName)
+        assertThat(capturedIntent.getStringExtra(KEY_DESTINATION))
+            .isEqualTo("Destination/package.name/1")
+    }
+
+    private companion object {
+        const val DESTINATION = "Destination"
+        const val PACKAGE_NAME = "package.name"
+        const val USER_ID = 1
+    }
+}