[DocsUI M3] Add compose folder to experiment compose

Add a new folder "compose" inside DocumentsUI so we can have a
isolate environment to experiment constructing Jetpack Compose
components. It's independent from the original DocumentsUI and
has its own build target. We could use this as a Compose Lab to
build component here first and then reuse it in the original
DocumentsUI.

Bug: 374224390
Test: m DocumentsUICompose
Flag: EXEMPT experiment for dev only
Change-Id: I33d61d47889e16c39aa92de082c2fdba2193461b

7 files changed, 249 insertions, 0 deletions

diff --git a/compose/Android.bp b/compose/Android.bp
new file mode 100644
index 000000000..072aa167d
--- /dev/null
+++ b/compose/Android.bp
@@ -0,0 +1,60 @@
+// Copyright (C) 2024 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 {
+    default_applicable_licenses: ["Android-Apache-2.0"],
+}
+
+android_library {
+    name: "DocumentsUIComposelib",
+    manifest: "AndroidManifest.xml",
+
+    resource_dirs: [
+        "res",
+    ],
+    srcs: [
+        "src/**/*.kt",
+    ],
+
+    static_libs: [
+        "androidx.activity_activity-compose",
+        "androidx.appcompat_appcompat",
+        "androidx.compose.foundation_foundation",
+        "androidx.compose.material3_material3",
+        "androidx.compose.material3_material3-window-size-class",
+        "androidx.compose.material_material-icons-extended",
+        "androidx.compose.runtime_runtime",
+        "androidx.compose.ui_ui",
+        "androidx.core_core-ktx",
+        "androidx.lifecycle_lifecycle-runtime-compose",
+        "androidx.lifecycle_lifecycle-runtime-ktx",
+        "modules-utils-build_system",
+    ],
+
+    sdk_version: "system_current",
+    target_sdk_version: "33",
+    min_sdk_version: "29",
+}
+
+android_app {
+    name: "DocumentsUICompose",
+    manifest: "AndroidManifest.xml",
+    static_libs: ["DocumentsUIComposelib"],
+
+    privileged: true,
+    certificate: "platform",
+
+    sdk_version: "system_current",
+    min_sdk_version: "29",
+}
diff --git a/compose/AndroidManifest.xml b/compose/AndroidManifest.xml
new file mode 100644
index 000000000..234f38e67
--- /dev/null
+++ b/compose/AndroidManifest.xml
@@ -0,0 +1,58 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+ * Copyright (C) 2024 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.
+ */
+-->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+        package="com.android.documentsui.compose">
+
+    <uses-sdk android:minSdkVersion="29"/>
+
+    <!-- Permissions copied from com.android.documentsui AndroidManifest.xml -->
+    <uses-permission android:name="android.permission.MANAGE_DOCUMENTS" />
+    <uses-permission android:name="android.permission.REMOVE_TASKS" />
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE_DATA_SYNC"/>
+    <uses-permission android:name="android.permission.WAKE_LOCK" />
+    <uses-permission android:name="android.permission.CACHE_CONTENT" />
+    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
+    <uses-permission android:name="android.permission.CHANGE_OVERLAY_PACKAGES" />
+    <uses-permission android:name="android.permission.INTERACT_ACROSS_USERS" />
+    <uses-permission android:name="android.permission.MODIFY_QUIET_MODE" />
+    <uses-permission android:name="android.permission.QUERY_ALL_PACKAGES" />
+    <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
+    <uses-permission android:name="android.permission.HIDE_OVERLAY_WINDOWS"/>
+    <uses-permission android:name="android.permission.LOG_COMPAT_CHANGE"/>
+    <uses-permission android:name="android.permission.READ_COMPAT_CHANGE_CONFIG"/>
+    <uses-permission android:name="android.permission.START_FOREGROUND_SERVICES_FROM_BACKGROUND"/>
+    <uses-permission android:name="android.permission.READ_DEVICE_CONFIG"/>
+
+    <application
+        android:label="@string/app_label"
+        android:supportsRtl="true"
+        android:allowBackup="true">
+
+        <activity
+            android:name=".MainActivity"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
+    </application>
+</manifest>
diff --git a/compose/OWNERS b/compose/OWNERS
new file mode 100644
index 000000000..ee4568b02
--- /dev/null
+++ b/compose/OWNERS
@@ -0,0 +1,6 @@
+# Bug component: 374224390
+
+wenbojie@google.com
+benreich@google.com
+lucmult@google.com
+tylersaunders@google.com
diff --git a/compose/README b/compose/README
new file mode 100644
index 000000000..5ccfbeda3
--- /dev/null
+++ b/compose/README
@@ -0,0 +1,12 @@
+This folder is intended for Sydney Files team to experiment constructing Jetpack Compose components
+for DocumentsUI.
+
+## Build and Install
+
+Use `brya` target as an example.
+
+```bash
+lunch brya-trunk_staging-eng
+m DocumentsUICompose
+adb install out/target/product/brya/system/priv-app/DocumentsUICompose/DocumentsUICompose.apk
+```
\ No newline at end of file
diff --git a/compose/res/values/strings.xml b/compose/res/values/strings.xml
new file mode 100644
index 000000000..a7acb0e66
--- /dev/null
+++ b/compose/res/values/strings.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2024 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.
+-->
+
+<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+    <string name="app_label">DocsUI Compose</string>
+</resources>
\ No newline at end of file
diff --git a/compose/src/com/android/documentsui/compose/MainActivity.kt b/compose/src/com/android/documentsui/compose/MainActivity.kt
new file mode 100644
index 000000000..4f0fd644d
--- /dev/null
+++ b/compose/src/com/android/documentsui/compose/MainActivity.kt
@@ -0,0 +1,46 @@
+/*
+ * Copyright 2024 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.documentsui.compose
+
+import android.os.Bundle
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Text
+import androidx.compose.ui.Modifier
+
+class MainActivity : ComponentActivity() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        setContent {
+            DocumentsUITheme {
+                Surface(
+                    modifier = Modifier.fillMaxSize(),
+                    color = MaterialTheme.colorScheme.background
+                ) {
+                    Column {
+                        Text(text = "DocumentsUI Compose")
+                    }
+                }
+            }
+        }
+    }
+}
diff --git a/compose/src/com/android/documentsui/compose/Theme.kt b/compose/src/com/android/documentsui/compose/Theme.kt
new file mode 100644
index 000000000..de6f7f34f
--- /dev/null
+++ b/compose/src/com/android/documentsui/compose/Theme.kt
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2024 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.documentsui.compose
+
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.darkColorScheme
+import androidx.compose.material3.dynamicDarkColorScheme
+import androidx.compose.material3.dynamicLightColorScheme
+import androidx.compose.material3.lightColorScheme
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.platform.LocalContext
+import com.android.modules.utils.build.SdkLevel
+
+@Composable
+fun DocumentsUITheme(
+    darkTheme: Boolean = isSystemInDarkTheme(),
+    dynamicColor: Boolean = true,
+    content: @Composable () -> Unit
+) {
+    val colorScheme = when {
+        dynamicColor && SdkLevel.isAtLeastS() -> {
+            val context = LocalContext.current
+            if (darkTheme) dynamicDarkColorScheme(context) else dynamicLightColorScheme(context)
+        }
+        darkTheme -> darkColorScheme()
+        else -> lightColorScheme()
+    }
+
+    MaterialTheme(
+        colorScheme = colorScheme,
+        content = content
+    )
+}