[battery_plus] Implement battery_plus plugin. OMP#OS-17083

packages/battery_plus/battery_plus_aurora/.gitignore

@@ -0,0 +1,30 @@
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+migrate_working_dir/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+# Libraries should not include pubspec.lock, per https://dart.dev/guides/libraries/private-files#pubspeclock.
+/pubspec.lock
+**/doc/api/
+.dart_tool/
+.packages
+build/

packages/battery_plus/battery_plus_aurora/README.md

@@ -0,0 +1,39 @@
+# battery_plus_aurora
+
+The Aurora implementation of [`battery_plus`](https://pub.dev/packages/battery_plus).
+
+## Usage
+
+This package is not an _endorsed_ implementation of `battery_plus`. 
+Therefore, you have to include `battery_plus_aurora` alongside `battery_plus` as dependencies in your `pubspec.yaml` file.
+
+**pubspec.yaml**
+
+```yaml
+dependencies:
+  battery_plus: ^4.0.1
+  battery_plus_aurora:
+    path: # path to folder with plugin
+```
+
+***.dart**
+
+```dart
+// Import package
+import 'package:battery_plus/battery_plus.dart';
+
+// Instantiate it
+var battery = Battery();
+
+// Get current battery level
+final batteryLevel = await _battery.batteryLevel;
+// Get current battery state
+final batteryState = await _battery.batteryState;
+// Check is enable SaveMode
+final isInBatterySaveMode = await _battery.isInBatterySaveMode;
+
+// Be informed when the state (full, charging, discharging) changes
+_battery.onBatteryStateChanged.listen((BatteryState state) {
+  debugPrint(state.toString());
+});
+```

packages/battery_plus/battery_plus_aurora/analysis_options.yaml

@@ -0,0 +1,4 @@
+# Copyright (c) 2023. Open Mobile Platform LLC.
+# License: Proprietary.
+
+include: package:flutter_lints/flutter.yaml

packages/battery_plus/battery_plus_aurora/data/com.nokia.mce.request.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE node PUBLIC
+  "-//freedesktop//DTD D-Bus Object Introspection 1.0//EN"
+  "http://standards.freedesktop.org/dbus/1.0/introspect.dtd">
+<node name="/com/nokia/mce/request">
+  <interface name="com.nokia.mce.request">
+    <method name="get_psm_state">
+      <arg direction="out" name="power_saving_mode_active" type="b"/>
+    </method>
+    <method name="get_battery_level">
+      <arg direction="out" name="battery_level" type="i"/>
+    </method>
+    <method name="get_charger_state">
+      <arg direction="out" name="charger_state" type="s"/>
+    </method>
+  </interface>
+</node>

packages/battery_plus/battery_plus_aurora/data/com.nokia.mce.signal.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE node PUBLIC
+  "-//freedesktop//DTD D-Bus Object Introspection 1.0//EN"
+  "http://standards.freedesktop.org/dbus/1.0/introspect.dtd">
+<node name="/com/nokia/mce/signal">
+  <interface name="com.nokia.mce.signal">
+    <signal name="battery_status_ind">
+      <arg name="battery_status" type="s"/>
+    </signal>
+    <signal name="charger_state_ind">
+      <arg name="charger_state" type="s"/>
+    </signal>
+  </interface>
+</node>
+

packages/battery_plus/battery_plus_aurora/example/.gitignore

@@ -0,0 +1,47 @@
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+migrate_working_dir/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+**/doc/api/
+**/ios/Flutter/.last_build_id
+.dart_tool/
+.flutter-plugins
+.flutter-plugins-dependencies
+.packages
+.pub-cache/
+.pub/
+/build/
+
+# Symbolication related
+app.*.symbols
+
+# Obfuscation related
+app.*.map.json
+
+# Android Studio will place build artifacts here
+/android/app/debug
+/android/app/profile
+/android/app/release
+
+# Aurora generated
+/aurora/flutter

packages/battery_plus/battery_plus_aurora/example/README.md

@@ -0,0 +1,21 @@
+# battery_plus_aurora_example
+
+Demonstrates how to use the battery_plus_aurora plugin.
+
+## Build
+
+```shell
+# Add an alias if it doesn't already exist
+alias flutter-aurora=$HOME/.local/opt/flutter-sdk/bin/flutter
+# Get dependencies
+flutter-aurora pub get
+# Run build
+flutter-aurora build aurora --release # [--release|--debug|--profile]
+```
+
+You can collect, sign, run an example on the device with a script located in the `script/build_example.sh`
+More information in `build_example.sh`.
+
+### Preview example
+
+![preview.png](../data/preview.png)

packages/battery_plus/battery_plus_aurora/example/analysis_options.yaml

@@ -0,0 +1,4 @@
+# Copyright (c) 2023. Open Mobile Platform LLC.
+# License: Proprietary.
+
+include: package:flutter_lints/flutter.yaml

packages/battery_plus/battery_plus_aurora/example/aurora/.gitignore

@@ -0,0 +1 @@
+flutter/ephemeral

packages/battery_plus/battery_plus_aurora/example/aurora/CMakeLists.txt

@@ -0,0 +1,50 @@
+# Copyright (c) 2023. Open Mobile Platform LLC.
+# License: Proprietary.
+
+cmake_minimum_required(VERSION 3.10)
+project(com.example.battery_plus_aurora_example LANGUAGES CXX)
+
+include(GNUInstallDirs)
+
+set(BINARY_NAME ${CMAKE_PROJECT_NAME})
+set(FLUTTER_DIR ${CMAKE_CURRENT_SOURCE_DIR}/flutter)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+set(CMAKE_CXX_FLAGS "-Wall -Wextra")
+set(CMAKE_CXX_FLAGS_RELEASE "-O3")
+
+set(CMAKE_SKIP_RPATH OFF)
+set(CMAKE_INSTALL_RPATH "\$ORIGIN/../share/${BINARY_NAME}/lib")
+
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(FlutterEmbedder REQUIRED IMPORTED_TARGET flutter-embedder)
+
+add_executable(${BINARY_NAME} main.cpp ${FLUTTER_DIR}/generated_plugin_registrant.cpp)
+target_link_libraries(${BINARY_NAME} PRIVATE PkgConfig::FlutterEmbedder)
+target_include_directories(${BINARY_NAME} PRIVATE ${FLUTTER_DIR})
+
+include(flutter/generated_plugins.cmake)
+
+set(PACKAGE_INSTALL_DIR    ${CMAKE_INSTALL_DATADIR}/${BINARY_NAME})
+set(DESKTOP_INSTALL_DIR    ${CMAKE_INSTALL_DATADIR}/applications)
+set(ICONS_INSTALL_ROOT_DIR ${CMAKE_INSTALL_DATADIR}/icons/hicolor)
+
+add_custom_command(TARGET ${BINARY_NAME} POST_BUILD
+                   COMMAND ${CMAKE_COMMAND} -E copy
+                   ${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}/libflutter-embedder.so
+                   ${PROJECT_BINARY_DIR}/bundle/lib/libflutter-embedder.so)
+
+install(FILES     ${PROJECT_BINARY_DIR}/bundle/icudtl.dat     DESTINATION ${PACKAGE_INSTALL_DIR})
+install(DIRECTORY ${PROJECT_BINARY_DIR}/bundle/flutter_assets DESTINATION ${PACKAGE_INSTALL_DIR})
+install(DIRECTORY ${PROJECT_BINARY_DIR}/bundle/lib            DESTINATION ${PACKAGE_INSTALL_DIR})
+
+install(TARGETS ${BINARY_NAME} RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
+install(FILES desktop/${BINARY_NAME}.desktop DESTINATION ${DESKTOP_INSTALL_DIR})
+
+foreach(ICONS_SIZE 86x86 108x108 128x128 172x172)
+    install(FILES icons/${ICONS_SIZE}.png
+            RENAME ${BINARY_NAME}.png
+            DESTINATION ${ICONS_INSTALL_ROOT_DIR}/${ICONS_SIZE}/apps/)
+endforeach(ICONS_SIZE)

packages/battery_plus/battery_plus_aurora/example/aurora/desktop/com.example.battery_plus_aurora_example.desktop

@@ -0,0 +1,12 @@
+[Desktop Entry]
+Type=Application
+Name=battery_plus_aurora_example
+Comment=Demonstrates how to use the battery_plus_aurora plugin.
+Icon=com.example.battery_plus_aurora_example
+Exec=/usr/bin/com.example.battery_plus_aurora_example
+X-Nemo-Application-Type=silica-qt5
+
+[X-Application]
+Permissions=
+OrganizationName=com.example
+ApplicationName=battery_plus_aurora_example

packages/battery_plus/battery_plus_aurora/example/aurora/main.cpp

@@ -0,0 +1,13 @@
+/*
+ * Copyright (c) 2023. Open Mobile Platform LLC.
+ * License: Proprietary.
+ */
+#include <flutter/application.h>
+#include "generated_plugin_registrant.h"
+
+int main(int argc, char *argv[]) {
+    Application::Initialize(argc, argv);
+    RegisterPlugins();
+    Application::Launch();
+    return 0;
+}

packages/battery_plus/battery_plus_aurora/example/aurora/rpm/com.example.battery_plus_aurora_example.spec

@@ -0,0 +1,31 @@
+%global __provides_exclude_from ^%{_datadir}/%{name}/lib/.*$
+%global __requires_exclude ^lib(dconf|flutter-embedder|maliit-glib|appmanifest-.+|.+_platform_plugin)\\.so.*$
+
+Name: com.example.battery_plus_aurora_example
+Summary: Demonstrates how to use the battery_plus_aurora plugin.
+Version: 0.1.0
+Release: 1
+License: Proprietary
+Source0: %{name}-%{version}.tar.zst
+
+BuildRequires: cmake
+BuildRequires: pkgconfig(flutter-embedder)
+
+%description
+%{summary}.
+
+%prep
+%autosetup
+
+%build
+%cmake -DCMAKE_BUILD_TYPE=%{_flutter_build_type}
+%make_build
+
+%install
+%make_install
+
+%files
+%{_bindir}/%{name}
+%{_datadir}/%{name}/*
+%{_datadir}/applications/%{name}.desktop
+%{_datadir}/icons/hicolor/*/apps/%{name}.png

packages/battery_plus/battery_plus_aurora/example/lib/main.dart

@@ -0,0 +1,164 @@
+/*
+ * Copyright (c) 2023. Open Mobile Platform LLC.
+ * License: Proprietary.
+ */
+import 'package:flutter/material.dart';
+import 'dart:async';
+
+import 'package:battery_plus/battery_plus.dart';
+
+void main() {
+  runApp(const MyApp());
+}
+
+class MyApp extends StatefulWidget {
+  const MyApp({super.key});
+
+  @override
+  State<MyApp> createState() => _MyAppState();
+}
+
+class _MyAppState extends State<MyApp> {
+  final _battery = Battery();
+  String? _error;
+  int? _batteryLevel;
+  String? _batteryState;
+  bool? _isInBatterySaveMode;
+
+  @override
+  void initState() {
+    super.initState();
+    initPlatformState();
+  }
+
+  // Platform messages are asynchronous, so we initialize in an async method.
+  Future<void> initPlatformState() async {
+    try {
+      // Get current battery level
+      final batteryLevel = await _battery.batteryLevel;
+      // Get current battery state
+      final batteryState = await _battery.batteryState;
+      // Check is enable SaveMode
+      final isInBatterySaveMode = await _battery.isInBatterySaveMode;
+
+      // Be informed when the state (full, charging, discharging) changes
+      _battery.onBatteryStateChanged.listen((BatteryState state) {
+        debugPrint(state.toString());
+      });
+
+      setState(() {
+        _batteryLevel = batteryLevel;
+        _batteryState = batteryState.name;
+        _isInBatterySaveMode = isInBatterySaveMode;
+      });
+    } on Exception catch (e) {
+      setState(() {
+        _error = e.toString();
+      });
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    const textStyleWhite = TextStyle(fontSize: 18, color: Colors.white);
+    const textStyleTitle = TextStyle(fontSize: 20, color: Colors.black);
+    const textStylePath = TextStyle(fontSize: 18, color: Colors.black54);
+
+    const spaceMedium = SizedBox(height: 20);
+    const spaceSmall = SizedBox(height: 10);
+
+    return MaterialApp(
+      home: Scaffold(
+        appBar: AppBar(
+          title: const Text('Example battery_plus'),
+        ),
+        body: Stack(
+          children: [
+            // Error message
+            Visibility(
+              visible: _error != null,
+              child: Center(
+                child: Padding(
+                  padding: const EdgeInsets.all(16),
+                  child: Container(
+                    padding: const EdgeInsets.all(20),
+                    decoration: const BoxDecoration(
+                      color: Colors.redAccent,
+                      borderRadius: BorderRadius.all(Radius.circular(10.0)),
+                    ),
+                    child: Text(
+                      _error ?? '',
+                      style: textStyleWhite,
+                    ),
+                  ),
+                ),
+              ),
+            ),
+            // List directories path
+            Visibility(
+              visible: _error == null,
+              child: SingleChildScrollView(
+                child: Padding(
+                  padding: const EdgeInsets.all(16),
+                  child: Center(
+                    child: Column(
+                      children: [
+                        // Info
+                        Container(
+                          padding: const EdgeInsets.all(20),
+                          decoration: const BoxDecoration(
+                            color: Colors.green,
+                            borderRadius:
+                                BorderRadius.all(Radius.circular(10.0)),
+                          ),
+                          child: const Text(
+                            'Demo application demonstration implementation of battery_plus',
+                            style: textStyleWhite,
+                            textAlign: TextAlign.center,
+                          ),
+                        ),
+                        const SizedBox(height: 30),
+
+                        const Text(
+                          'Battery Level',
+                          style: textStyleTitle,
+                        ),
+                        spaceSmall,
+                        Text(
+                          "$_batteryLevel%",
+                          style: textStylePath,
+                        ),
+
+                        spaceMedium,
+                        const Text(
+                          'Battery State',
+                          style: textStyleTitle,
+                        ),
+                        spaceSmall,
+                        Text(
+                          _batteryState.toString(),
+                          style: textStylePath,
+                        ),
+
+                        spaceMedium,
+                        const Text(
+                          'Is In Battery SaveMode',
+                          style: textStyleTitle,
+                        ),
+                        spaceSmall,
+                        Text(
+                          _isInBatterySaveMode.toString(),
+                          style: textStylePath,
+                        ),
+                      ],
+                    ),
+                  ),
+                ),
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

packages/battery_plus/battery_plus_aurora/example/pubspec.lock

@@ -0,0 +1,243 @@
+# Generated by pub
+# See https://dart.dev/tools/pub/glossary#lockfile
+packages:
+  args:
+    dependency: transitive
+    description:
+      name: args
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.4.1"
+  async:
+    dependency: transitive
+    description:
+      name: async
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.9.0"
+  battery_plus:
+    dependency: "direct main"
+    description:
+      name: battery_plus
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "4.0.1"
+  battery_plus_aurora:
+    dependency: "direct main"
+    description:
+      path: ".."
+      relative: true
+    source: path
+    version: "0.0.1"
+  battery_plus_platform_interface:
+    dependency: transitive
+    description:
+      name: battery_plus_platform_interface
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.2"
+  boolean_selector:
+    dependency: transitive
+    description:
+      name: boolean_selector
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.0"
+  characters:
+    dependency: transitive
+    description:
+      name: characters
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.1"
+  clock:
+    dependency: transitive
+    description:
+      name: clock
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.1"
+  collection:
+    dependency: transitive
+    description:
+      name: collection
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.16.0"
+  cupertino_icons:
+    dependency: "direct main"
+    description:
+      name: cupertino_icons
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.5"
+  dbus:
+    dependency: transitive
+    description:
+      name: dbus
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.7.8"
+  fake_async:
+    dependency: transitive
+    description:
+      name: fake_async
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.3.1"
+  ffi:
+    dependency: transitive
+    description:
+      name: ffi
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.2"
+  flutter:
+    dependency: "direct main"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  flutter_lints:
+    dependency: "direct dev"
+    description:
+      name: flutter_lints
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.1"
+  flutter_test:
+    dependency: "direct dev"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  flutter_web_plugins:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  js:
+    dependency: transitive
+    description:
+      name: js
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.6.4"
+  lints:
+    dependency: transitive
+    description:
+      name: lints
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.1"
+  matcher:
+    dependency: transitive
+    description:
+      name: matcher
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.12.12"
+  material_color_utilities:
+    dependency: transitive
+    description:
+      name: material_color_utilities
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.5"
+  meta:
+    dependency: transitive
+    description:
+      name: meta
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.8.0"
+  path:
+    dependency: transitive
+    description:
+      name: path
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.8.2"
+  petitparser:
+    dependency: transitive
+    description:
+      name: petitparser
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "5.1.0"
+  plugin_platform_interface:
+    dependency: transitive
+    description:
+      name: plugin_platform_interface
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.4"
+  sky_engine:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.99"
+  source_span:
+    dependency: transitive
+    description:
+      name: source_span
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.9.0"
+  stack_trace:
+    dependency: transitive
+    description:
+      name: stack_trace
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.10.0"
+  stream_channel:
+    dependency: transitive
+    description:
+      name: stream_channel
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.0"
+  string_scanner:
+    dependency: transitive
+    description:
+      name: string_scanner
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.1"
+  term_glyph:
+    dependency: transitive
+    description:
+      name: term_glyph
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.1"
+  test_api:
+    dependency: transitive
+    description:
+      name: test_api
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.4.12"
+  upower:
+    dependency: transitive
+    description:
+      name: upower
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.7.0"
+  vector_math:
+    dependency: transitive
+    description:
+      name: vector_math
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.2"
+  xml:
+    dependency: transitive
+    description:
+      name: xml
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "6.1.0"
+sdks:
+  dart: ">=2.18.6 <3.0.0"
+  flutter: ">=3.3.0"

packages/battery_plus/battery_plus_aurora/example/pubspec.yaml

@@ -0,0 +1,26 @@
+# Copyright (c) 2023. Open Mobile Platform LLC.
+# License: Proprietary.
+
+name: battery_plus_aurora_example
+description: Demonstrates how to use the battery_plus_aurora plugin.
+
+publish_to: 'none'
+
+environment:
+  sdk: '>=2.18.6 <3.0.0'
+
+dependencies:
+  flutter:
+    sdk: flutter
+  battery_plus: ^4.0.1
+  battery_plus_aurora:
+    path: ../
+  cupertino_icons: ^1.0.2
+
+dev_dependencies:
+  flutter_test:
+    sdk: flutter
+  flutter_lints: ^2.0.0
+
+flutter:
+  uses-material-design: true

packages/battery_plus/battery_plus_aurora/lib/battery_plus_aurora.dart

@@ -0,0 +1,92 @@
+/*
+ * Copyright (c) 2023. Open Mobile Platform LLC.
+ * License: Proprietary.
+ */
+import 'package:battery_plus_aurora/com_nokia_mce_request.dart';
+import 'package:battery_plus_aurora/com_nokia_mce_signal.dart';
+import 'package:dbus/dbus.dart';
+import 'package:battery_plus_platform_interface/battery_plus_platform_interface.dart';
+import 'package:flutter/foundation.dart';
+import 'dart:async' show Stream;
+import 'package:async/async.dart' show StreamGroup;
+
+class BatteryPlusAurora extends BatteryPlatform {
+  /// Register this dart class as the platform implementation for aurora
+  static void registerWith() {
+    if (TargetPlatform.aurora == defaultTargetPlatform) {
+      BatteryPlatform.instance = BatteryPlusAurora();
+    }
+  }
+
+  /// Returns the current battery level in percent.
+  @override
+  Future<int> get batteryLevel async {
+    final client = DBusClient.system();
+    final request = ComNokiaMceRequest(client, 'com.nokia.mce');
+    final level = await request.callget_battery_level();
+    await client.close();
+    return level;
+  }
+
+  /// Returns true if the device is on battery save mode
+  @override
+  Future<bool> get isInBatterySaveMode async {
+    final client = DBusClient.system();
+    final request = ComNokiaMceRequest(client, 'com.nokia.mce');
+    final state = await request.callget_psm_state();
+    await client.close();
+    return state;
+  }
+
+  /// Returns the current battery state in percent.
+  @override
+  Future<BatteryState> get batteryState async {
+    final client = DBusClient.system();
+    final request = ComNokiaMceRequest(client, 'com.nokia.mce');
+
+    final level = await request.callget_battery_level();
+    final status = await request.callget_charger_state();
+
+    await client.close();
+
+    if (level == 100) {
+      return BatteryState.full;
+    } else if (status == 'on') {
+      return BatteryState.charging;
+    } else {
+      return BatteryState.discharging;
+    }
+  }
+
+  /// Returns a Stream of BatteryState changes.
+  @override
+  Stream<BatteryState> get onBatteryStateChanged async* {
+    final client = DBusClient.system();
+    final signal = ComNokiaMceSignal(client, 'com.nokia.mce');
+    final request = ComNokiaMceRequest(client, 'com.nokia.mce');
+
+    var steam = StreamGroup.merge([
+      signal.battery_status_ind,
+      signal.charger_state_ind,
+    ]);
+
+    await for (final event in steam) {
+      if (event.name == 'battery_status_ind') {
+        if (event.values.first.toNative() == 'full') {
+          yield BatteryState.full;
+        }
+      } else {
+        if (event.values.first.toNative() == 'on') {
+          yield BatteryState.charging;
+          final level = await request.callget_battery_level();
+          if (level == 100) {
+            yield BatteryState.full;
+          }
+        } else {
+          yield BatteryState.discharging;
+        }
+      }
+    }
+    await client.close();
+  }
+}

packages/battery_plus/battery_plus_aurora/lib/com_nokia_mce_request.dart

@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2023. Open Mobile Platform LLC.
+ * License: Proprietary.
+ */
+import 'package:dbus/dbus.dart';
+
+class ComNokiaMceRequest extends DBusRemoteObject {
+  ComNokiaMceRequest(DBusClient client, String destination,
+      {DBusObjectPath path =
+          const DBusObjectPath.unchecked('/com/nokia/mce/request')})
+      : super(client, name: destination, path: path);
+
+  /// Invokes com.nokia.mce.request.get_psm_state()
+  Future<bool> callget_psm_state(
+      {bool noAutoStart = false,
+      bool allowInteractiveAuthorization = false}) async {
+    var result = await callMethod('com.nokia.mce.request', 'get_psm_state', [],
+        replySignature: DBusSignature('b'),
+        noAutoStart: noAutoStart,
+        allowInteractiveAuthorization: allowInteractiveAuthorization);
+    return result.returnValues[0].asBoolean();
+  }
+
+  /// Invokes com.nokia.mce.request.get_battery_level()
+  Future<int> callget_battery_level(
+      {bool noAutoStart = false,
+      bool allowInteractiveAuthorization = false}) async {
+    var result = await callMethod(
+        'com.nokia.mce.request', 'get_battery_level', [],
+        replySignature: DBusSignature('i'),
+        noAutoStart: noAutoStart,
+        allowInteractiveAuthorization: allowInteractiveAuthorization);
+    return result.returnValues[0].asInt32();
+  }
+
+  /// Invokes com.nokia.mce.request.get_charger_state()
+  Future<String> callget_charger_state(
+      {bool noAutoStart = false,
+      bool allowInteractiveAuthorization = false}) async {
+    var result = await callMethod(
+        'com.nokia.mce.request', 'get_charger_state', [],
+        replySignature: DBusSignature('s'),
+        noAutoStart: noAutoStart,
+        allowInteractiveAuthorization: allowInteractiveAuthorization);
+    return result.returnValues[0].asString();
+  }
+}

packages/battery_plus/battery_plus_aurora/lib/com_nokia_mce_signal.dart

@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2023. Open Mobile Platform LLC.
+ * License: Proprietary.
+ */
+import 'package:dbus/dbus.dart';
+
+/// Signal data for com.nokia.mce.signal.battery_status_ind.
+class ComNokiaMceSignalbattery_status_ind extends DBusSignal {
+  String get battery_status => values[0].asString();
+
+  ComNokiaMceSignalbattery_status_ind(DBusSignal signal)
+      : super(
+            sender: signal.sender,
+            path: signal.path,
+            interface: signal.interface,
+            name: signal.name,
+            values: signal.values);
+}
+
+/// Signal data for com.nokia.mce.signal.charger_state_ind.
+class ComNokiaMceSignalcharger_state_ind extends DBusSignal {
+  String get charger_state => values[0].asString();
+
+  ComNokiaMceSignalcharger_state_ind(DBusSignal signal)
+      : super(
+            sender: signal.sender,
+            path: signal.path,
+            interface: signal.interface,
+            name: signal.name,
+            values: signal.values);
+}
+
+class ComNokiaMceSignal extends DBusRemoteObject {
+  /// Stream of com.nokia.mce.signal.battery_status_ind signals.
+  late final Stream<ComNokiaMceSignalbattery_status_ind> battery_status_ind;
+
+  /// Stream of com.nokia.mce.signal.charger_state_ind signals.
+  late final Stream<ComNokiaMceSignalcharger_state_ind> charger_state_ind;
+
+  ComNokiaMceSignal(DBusClient client, String destination,
+      {DBusObjectPath path =
+          const DBusObjectPath.unchecked('/com/nokia/mce/signal')})
+      : super(client, name: destination, path: path) {
+    battery_status_ind = DBusRemoteObjectSignalStream(
+            object: this,
+            interface: 'com.nokia.mce.signal',
+            name: 'battery_status_ind',
+            signature: DBusSignature('s'))
+        .asBroadcastStream()
+        .map((signal) => ComNokiaMceSignalbattery_status_ind(signal));
+
+    charger_state_ind = DBusRemoteObjectSignalStream(
+            object: this,
+            interface: 'com.nokia.mce.signal',
+            name: 'charger_state_ind',
+            signature: DBusSignature('s'))
+        .asBroadcastStream()
+        .map((signal) => ComNokiaMceSignalcharger_state_ind(signal));
+  }
+}

packages/battery_plus/battery_plus_aurora/pubspec.yaml

@@ -0,0 +1,29 @@
+# Copyright (c) 2023. Open Mobile Platform LLC.
+# License: Proprietary.
+
+name: battery_plus_aurora
+description: The Aurora OS implementation of battery_plus.
+version: 0.0.1
+
+environment:
+  sdk: '>=2.18.6 <3.0.0'
+  flutter: ">=2.5.0"
+
+dependencies:
+  flutter:
+    sdk: flutter
+  dbus: ^0.7.8
+  async: ^2.9.0
+  plugin_platform_interface: ^2.0.2
+  battery_plus_platform_interface: ^1.2.2
+
+dev_dependencies:
+  flutter_test:
+    sdk: flutter
+  flutter_lints: ^2.0.0
+
+flutter:
+  plugin:
+    platforms:
+      aurora:
+        dartPluginClass: BatteryPlusAurora