From 01327ddfe0c8057f67d6fdd5414fe2ff3591e6d6 Mon Sep 17 00:00:00 2001
From: debuggerx <dx8917312@163.com>
Date: Sun, 12 Sep 2021 22:24:21 +0800
Subject: [PATCH] feat: create app and api projects.

---
 .gitignore                                       |   2 +
 README.md                                        |   2 +
 api/.gitignore                                   |  28 ++++++
 api/README.md                                    |  37 ++++++++
 api/analysis_options.yaml                        |  98 +++++++++++++++++++
 api/bin/main.dart                                |  13 +++
 api/config.src.yaml                              |   6 ++
 api/lib/channel.dart                             |  77 +++++++++++++++
 api/lib/dde_gesture_manager.dart                 |  11 +++
 api/lib/model/model.dart                         |  18 ++++
 api/pubspec.yaml                                 |  13 +++
 api/test/harness/app.dart                        |  38 ++++++++
 api/test/simple_controller_test.dart             |  32 +++++++
 api/web/login.html                               |  29 ++++++
 app/.gitignore                                   |  47 +++++++++
 app/.metadata                                    |  10 ++
 app/README.md                                    |  16 ++++
 app/lib/main.dart                                | 113 ++++++++++++++++++++++
 app/linux/.gitignore                             |   1 +
 app/linux/CMakeLists.txt                         | 116 +++++++++++++++++++++++
 app/linux/flutter/CMakeLists.txt                 |  87 +++++++++++++++++
 app/linux/flutter/generated_plugin_registrant.cc |   9 ++
 app/linux/flutter/generated_plugin_registrant.h  |  13 +++
 app/linux/flutter/generated_plugins.cmake        |  15 +++
 app/linux/main.cc                                |   6 ++
 app/linux/my_application.cc                      | 105 ++++++++++++++++++++
 app/linux/my_application.h                       |  18 ++++
 app/pubspec.yaml                                 |  76 +++++++++++++++
 app/test/widget_test.dart                        |  30 ++++++
 app/web/favicon.png                              | Bin 0 -> 917 bytes
 app/web/icons/Icon-192.png                       | Bin 0 -> 5292 bytes
 app/web/icons/Icon-512.png                       | Bin 0 -> 8252 bytes
 app/web/index.html                               |  98 +++++++++++++++++++
 app/web/manifest.json                            |  23 +++++
 34 files changed, 1187 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 README.md
 create mode 100644 api/.gitignore
 create mode 100644 api/README.md
 create mode 100644 api/analysis_options.yaml
 create mode 100644 api/bin/main.dart
 create mode 100644 api/config.src.yaml
 create mode 100644 api/lib/channel.dart
 create mode 100644 api/lib/dde_gesture_manager.dart
 create mode 100644 api/lib/model/model.dart
 create mode 100644 api/pubspec.yaml
 create mode 100644 api/test/harness/app.dart
 create mode 100644 api/test/simple_controller_test.dart
 create mode 100644 api/web/login.html
 create mode 100644 app/.gitignore
 create mode 100644 app/.metadata
 create mode 100644 app/README.md
 create mode 100644 app/lib/main.dart
 create mode 100644 app/linux/.gitignore
 create mode 100644 app/linux/CMakeLists.txt
 create mode 100644 app/linux/flutter/CMakeLists.txt
 create mode 100644 app/linux/flutter/generated_plugin_registrant.cc
 create mode 100644 app/linux/flutter/generated_plugin_registrant.h
 create mode 100644 app/linux/flutter/generated_plugins.cmake
 create mode 100644 app/linux/main.cc
 create mode 100644 app/linux/my_application.cc
 create mode 100644 app/linux/my_application.h
 create mode 100644 app/pubspec.yaml
 create mode 100644 app/test/widget_test.dart
 create mode 100644 app/web/favicon.png
 create mode 100644 app/web/icons/Icon-192.png
 create mode 100644 app/web/icons/Icon-512.png
 create mode 100644 app/web/index.html
 create mode 100644 app/web/manifest.json

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..66f8fb5
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+.idea/
+.vscode/
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..b0d424b
--- /dev/null
+++ b/README.md
@@ -0,0 +1,2 @@
+# DDE Gesture Manager
+专为 DDE 桌面环境打造的触摸板手势管理工具
\ No newline at end of file
diff --git a/api/.gitignore b/api/.gitignore
new file mode 100644
index 0000000..57ad605
--- /dev/null
+++ b/api/.gitignore
@@ -0,0 +1,28 @@
+# Created by .ignore support plugin (hsz.mobi)
+### Dart template
+# See https://www.dartlang.org/guides/libraries/private-files
+
+# Files and directories created by pub
+.dart_tool/
+.packages
+build/
+# If you're building an application, you may want to check-in your pubspec.lock
+pubspec.lock
+
+# Directory created by dartdoc
+# If you don't generate documentation locally you can remove this line.
+doc/api/
+
+# Avoid committing generated Javascript files:
+*.dart.js
+*.info.json      # Produced by the --dump-info flag.
+*.js             # When generated by dart2js. Don't specify *.js if your
+                 # project includes source files written in JavaScript.
+*.js_
+*.js.deps
+*.js.map
+
+.flutter-plugins
+.flutter-plugins-dependencies
+
+config.yaml
\ No newline at end of file
diff --git a/api/README.md b/api/README.md
new file mode 100644
index 0000000..7849780
--- /dev/null
+++ b/api/README.md
@@ -0,0 +1,37 @@
+# dde_gesture_manager
+
+## Running the Application Locally
+
+Run `conduit serve` from this directory to run the application. For running within an IDE, run `bin/main.dart`. By default, a configuration file named `config.yaml` will be used.
+
+You must have a `config.yaml` file that has correct database connection info, which should point to a local database. To configure a database to match your application's schema, run the following commands:
+
+```
+# if this is a project, run db generate first
+conduit db generate
+conduit db upgrade --connect postgres://user:password@localhost:5432/app_name
+```
+
+To generate a SwaggerUI client, run `conduit document client`.
+
+## Running Application Tests
+
+Tests are run with a local PostgreSQL database named `conduit_test_db`. If this database does not exist, create it from your SQL prompt:
+
+CREATE DATABASE conduit_test_db;
+CREATE USER conduit_test_user WITH createdb;
+ALTER USER conduit_test_user WITH password 'conduit!';
+GRANT all ON DATABASE conduit_test_db TO conduit_test_user;
+
+
+To run all tests for this application, run the following in this directory:
+
+```
+pub run test
+```
+
+The default configuration file used when testing is `config.src.yaml`. This file should be checked into version control. It also the template for configuration files used in deployment.
+
+## Deploying an Application
+
+See the documentation for [Deployment](https://conduit.io/docs/deploy/).
\ No newline at end of file
diff --git a/api/analysis_options.yaml b/api/analysis_options.yaml
new file mode 100644
index 0000000..d474280
--- /dev/null
+++ b/api/analysis_options.yaml
@@ -0,0 +1,98 @@
+analyzer:
+  strong-mode:
+    implicit-casts: false
+
+linter:
+  rules:
+    - always_declare_return_types
+    - always_put_control_body_on_new_line
+    - always_put_required_named_parameters_first
+    - always_require_non_null_named_parameters
+    - annotate_overrides
+    - avoid_bool_literals_in_conditional_expressions
+    - avoid_double_and_int_checks
+    - avoid_empty_else
+    - avoid_field_initializers_in_const_classes
+    - avoid_init_to_null
+    - avoid_null_checks_in_equality_operators
+    - avoid_positional_boolean_parameters
+    - avoid_relative_lib_imports
+    - avoid_renaming_method_parameters
+    - avoid_return_types_on_setters
+    - avoid_returning_null
+    - avoid_single_cascade_in_expression_statements
+    - avoid_slow_async_io
+    - avoid_types_as_parameter_names
+    - avoid_unused_constructor_parameters
+    - await_only_futures
+    - camel_case_types
+    - cancel_subscriptions
+    - close_sinks
+    - comment_references
+    - constant_identifier_names
+    - control_flow_in_finally
+    - directives_ordering
+    - empty_catches
+    - empty_constructor_bodies
+    - empty_statements
+    - hash_and_equals
+    - implementation_imports
+    - invariant_booleans
+    - iterable_contains_unrelated_type
+    - join_return_with_assignment
+    - library_names
+    - library_prefixes
+    - list_remove_unrelated_type
+    - literal_only_boolean_expressions
+    - no_duplicate_case_values
+    - non_constant_identifier_names
+    - null_closures
+    - package_api_docs
+    - package_names
+    - package_prefixed_library_names
+    - parameter_assignments
+    - prefer_adjacent_string_concatenation
+    - prefer_asserts_in_initializer_lists
+    - prefer_collection_literals
+    - prefer_conditional_assignment
+    - prefer_const_constructors
+    - prefer_const_constructors_in_immutables
+    - prefer_const_declarations
+    - prefer_const_literals_to_create_immutables
+    - prefer_constructors_over_static_methods
+    - prefer_contains
+    - prefer_equal_for_default_values
+    - prefer_final_fields
+    - prefer_final_locals
+    - prefer_foreach
+    - prefer_generic_function_type_aliases
+    - prefer_interpolation_to_compose_strings
+    - prefer_is_empty
+    - prefer_is_not_empty
+    - prefer_iterable_whereType
+    - prefer_typing_uninitialized_variables
+    - recursive_getters
+    - slash_for_doc_comments
+    - sort_constructors_first
+    - sort_unnamed_constructors_first
+    - test_types_in_equals
+    - throw_in_finally
+    - type_annotate_public_apis
+    - type_init_formals
+    - unawaited_futures
+    - unnecessary_const
+    - unnecessary_getters_setters
+    - unnecessary_lambdas
+    - unnecessary_new
+    - unnecessary_null_aware_assignments
+    - unnecessary_null_in_if_null_operators
+    - unnecessary_overrides
+    - unnecessary_parenthesis
+    - unnecessary_statements
+    - unnecessary_this
+    - unrelated_type_equality_checks
+    - use_rethrow_when_possible
+    - use_string_buffers
+    - use_to_and_as_if_applicable
+    - valid_regexps
+    - void_checks
\ No newline at end of file
diff --git a/api/bin/main.dart b/api/bin/main.dart
new file mode 100644
index 0000000..37d4c6c
--- /dev/null
+++ b/api/bin/main.dart
@@ -0,0 +1,13 @@
+import 'package:dde_gesture_manager/dde_gesture_manager.dart';
+
+Future main() async {
+  final app = Application<DdeGestureManagerChannel>()
+    ..options.configurationFilePath = "config.yaml"
+    ..options.port = 8888;
+
+  await app.startOnCurrentIsolate();
+
+  print("Application started on port: ${app.options.port}.");
+  print("Click to open in browser: http://localhost:${app.options.port}");
+  print("Use Ctrl-C (SIGINT) to stop running the application.");
+}
diff --git a/api/config.src.yaml b/api/config.src.yaml
new file mode 100644
index 0000000..d3edf9a
--- /dev/null
+++ b/api/config.src.yaml
@@ -0,0 +1,6 @@
+database:
+  username: conduit_test_user
+  password: conduit!
+  host: localhost
+  port: 15432 # change this value
+  databaseName: conduit_test_db
diff --git a/api/lib/channel.dart b/api/lib/channel.dart
new file mode 100644
index 0000000..8a95282
--- /dev/null
+++ b/api/lib/channel.dart
@@ -0,0 +1,77 @@
+import 'package:dde_gesture_manager/model/model.dart';
+import 'package:dde_gesture_manager/dde_gesture_manager.dart';
+
+/// This type initializes an application.
+///
+/// Override methods in this class to set up routes and initialize services like
+/// database connections. See http://conduit.io/docs/http/channel/.
+class DdeGestureManagerChannel extends ApplicationChannel {
+  late ManagedContext context;
+
+  /// Initialize services in this method.
+  ///
+  /// Implement this method to initialize services, read values from [options]
+  /// and any other initialization required before constructing [entryPoint].
+  ///
+  /// This method is invoked prior to [entryPoint] being accessed.
+  @override
+  Future prepare() async {
+    logger.onRecord.listen(
+        (rec) => print("$rec ${rec.error ?? ""} ${rec.stackTrace ?? ""}"));
+
+    final config =
+        DdeGestureManagerConfiguration(options!.configurationFilePath!);
+    context = contextWithConnectionInfo(config.database!);
+  }
+
+  /// Construct the request channel.
+  ///
+  /// Return an instance of some [Controller] that will be the initial receiver
+  /// of all [Request]s.
+  ///
+  /// This method is invoked after [prepare].
+  @override
+  Controller get entryPoint {
+    final router = Router();
+
+    router
+        .route("/model/[:id]")
+        .link(() => ManagedObjectController<Model>(context));
+
+    router
+        .route("/")
+        .linkFunction((Request request) async => Response.ok('ok'));
+
+    return router;
+  }
+
+  /*
+   * Helper methods
+   */
+
+  ManagedContext contextWithConnectionInfo(
+      DatabaseConfiguration connectionInfo) {
+    final dataModel = ManagedDataModel.fromCurrentMirrorSystem();
+    final psc = PostgreSQLPersistentStore(
+        connectionInfo.username,
+        connectionInfo.password,
+        connectionInfo.host,
+        connectionInfo.port,
+        connectionInfo.databaseName);
+
+    return ManagedContext(dataModel, psc);
+  }
+}
+
+/// An instance of this class reads values from a configuration
+/// file specific to this application.
+///
+/// Configuration files must have key-value for the properties in this class.
+/// For more documentation on configuration files, see https://conduit.io/docs/configure/ and
+/// https://pub.dartlang.org/packages/safe_config.
+class DdeGestureManagerConfiguration extends Configuration {
+  DdeGestureManagerConfiguration(String fileName)
+      : super.fromFile(File(fileName));
+
+  DatabaseConfiguration? database;
+}
diff --git a/api/lib/dde_gesture_manager.dart b/api/lib/dde_gesture_manager.dart
new file mode 100644
index 0000000..713096c
--- /dev/null
+++ b/api/lib/dde_gesture_manager.dart
@@ -0,0 +1,11 @@
+/// dde_gesture_manager
+///
+/// A conduit web server.
+library dde_gesture_manager;
+
+export 'dart:async';
+export 'dart:io';
+
+export 'package:conduit/conduit.dart';
+
+export 'channel.dart';
diff --git a/api/lib/model/model.dart b/api/lib/model/model.dart
new file mode 100644
index 0000000..6eb8a1b
--- /dev/null
+++ b/api/lib/model/model.dart
@@ -0,0 +1,18 @@
+import 'package:dde_gesture_manager/dde_gesture_manager.dart';
+
+class Model extends ManagedObject<_Model> implements _Model {
+  @override
+  void willInsert() {
+    createdAt = DateTime.now().toUtc();
+  }
+}
+
+class _Model {
+  @primaryKey
+  int? id;
+
+  @Column(indexed: true)
+  String? name;
+
+  DateTime? createdAt;
+}
diff --git a/api/pubspec.yaml b/api/pubspec.yaml
new file mode 100644
index 0000000..c56bbff
--- /dev/null
+++ b/api/pubspec.yaml
@@ -0,0 +1,13 @@
+name: dde_gesture_manager
+description: An conduit application with a database connection and data model.
+version: 0.0.1
+
+environment:
+  sdk: ">=2.12.0 <3.0.0"
+
+dependencies:
+  conduit: ^3.0.0
+
+dev_dependencies:
+  test: ^1.16.5
+  conduit_test: ^3.0.0
\ No newline at end of file
diff --git a/api/test/harness/app.dart b/api/test/harness/app.dart
new file mode 100644
index 0000000..029207a
--- /dev/null
+++ b/api/test/harness/app.dart
@@ -0,0 +1,38 @@
+import 'package:dde_gesture_manager/dde_gesture_manager.dart';
+import 'package:conduit_test/conduit_test.dart';
+
+export 'package:dde_gesture_manager/dde_gesture_manager.dart';
+export 'package:conduit_test/conduit_test.dart';
+export 'package:test/test.dart';
+export 'package:conduit/conduit.dart';
+
+/// A testing harness for dde_gesture_manager.
+///
+/// A harness for testing an conduit application. Example test file:
+///
+///         void main() {
+///           Harness harness = Harness()..install();
+///
+///           test("GET /path returns 200", () async {
+///             final response = await harness.agent.get("/path");
+///             expectResponse(response, 200);
+///           });
+///         }
+///
+class Harness extends TestHarness<DdeGestureManagerChannel> with TestHarnessORMMixin {
+  @override
+  ManagedContext? get context => channel?.context;
+
+  @override
+  Future onSetUp() async {
+    await resetData();
+  }
+
+  @override
+  Future onTearDown() async {}
+
+  @override
+  Future seed() async {
+    // restore any static data. called by resetData.
+  }
+}
diff --git a/api/test/simple_controller_test.dart b/api/test/simple_controller_test.dart
new file mode 100644
index 0000000..c2c0c9c
--- /dev/null
+++ b/api/test/simple_controller_test.dart
@@ -0,0 +1,32 @@
+import 'harness/app.dart';
+
+Future main() async {
+  final harness = Harness()..install();
+
+  tearDown(() async {
+    await harness.resetData();
+  });
+
+  test("POST /model", () async {
+    final response = await harness.agent!.post("/model", body: {"name": "Bob"});
+    expect(
+        response,
+        hasResponse(200,
+            body: {"id": isNotNull, "name": "Bob", "createdAt": isTimestamp}));
+  });
+
+  test("GET /model/:id returns previously created object", () async {
+    var response = await harness.agent!.post("/model", body: {"name": "Bob"});
+
+    final createdObject = response?.body.as();
+    response =
+        await harness.agent!.request("/model/${createdObject["id"]}").get();
+    expect(
+        response,
+        hasResponse(200, body: {
+          "id": createdObject["id"],
+          "name": createdObject["name"],
+          "createdAt": createdObject["createdAt"]
+        }));
+  });
+}
diff --git a/api/web/login.html b/api/web/login.html
new file mode 100644
index 0000000..df15053
--- /dev/null
+++ b/api/web/login.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="UTF-8">
+    <title>Login</title>
+</head>
+
+<body>
+<div class="container">
+    <h1>Login</h1>
+    <form action="{{path}}" method="POST">
+        <input type="hidden" name="state" value="{{state}}">
+        <input type="hidden" name="client_id" value="{{client_id}}">
+        <input type="hidden" name="response_type" value="code">
+        <div class="form-group">
+            <label for="username">User Name</label>
+            <input type="text" class="form-control" name="username" placeholder="Please enter your user name">
+        </div>
+        <div class="form-group">
+            <label for="password">Password</label>
+            <input type="password" class="form-control" name="password" placeholder="Please enter your password">
+        </div>
+        <button type="submit" class="btn btn-success">Login</button>
+    </form>
+</div>
+</body>
+
+</html>
\ No newline at end of file
diff --git a/app/.gitignore b/app/.gitignore
new file mode 100644
index 0000000..6d47c6f
--- /dev/null
+++ b/app/.gitignore
@@ -0,0 +1,47 @@
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+
+# 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/
+pubspec.lock
+
+# Web related
+lib/generated_plugin_registrant.dart
+
+# 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
diff --git a/app/.metadata b/app/.metadata
new file mode 100644
index 0000000..56bfc2c
--- /dev/null
+++ b/app/.metadata
@@ -0,0 +1,10 @@
+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: f4abaa0735eba4dfd8f33f73363911d63931fe03
+  channel: stable
+
+project_type: app
diff --git a/app/README.md b/app/README.md
new file mode 100644
index 0000000..d446fd0
--- /dev/null
+++ b/app/README.md
@@ -0,0 +1,16 @@
+# dde_gesture_manager
+
+A new Flutter project.
+
+## Getting Started
+
+This project is a starting point for a Flutter application.
+
+A few resources to get you started if this is your first Flutter project:
+
+- [Lab: Write your first Flutter app](https://flutter.dev/docs/get-started/codelab)
+- [Cookbook: Useful Flutter samples](https://flutter.dev/docs/cookbook)
+
+For help getting started with Flutter, view our
+[online documentation](https://flutter.dev/docs), which offers tutorials,
+samples, guidance on mobile development, and a full API reference.
diff --git a/app/lib/main.dart b/app/lib/main.dart
new file mode 100644
index 0000000..b9bfc38
--- /dev/null
+++ b/app/lib/main.dart
@@ -0,0 +1,113 @@
+import 'package:flutter/material.dart';
+
+void main() {
+  runApp(MyApp());
+}
+
+class MyApp extends StatelessWidget {
+  // This widget is the root of your application.
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      title: 'Flutter Demo',
+      theme: ThemeData(
+        // This is the theme of your application.
+        //
+        // Try running your application with "flutter run". You'll see the
+        // application has a blue toolbar. Then, without quitting the app, try
+        // changing the primarySwatch below to Colors.green and then invoke
+        // "hot reload" (press "r" in the console where you ran "flutter run",
+        // or simply save your changes to "hot reload" in a Flutter IDE).
+        // Notice that the counter didn't reset back to zero; the application
+        // is not restarted.
+        primarySwatch: Colors.blue,
+      ),
+      home: MyHomePage(title: 'Flutter Demo Home Page'),
+    );
+  }
+}
+
+class MyHomePage extends StatefulWidget {
+  MyHomePage({Key? key, required this.title}) : super(key: key);
+
+  // This widget is the home page of your application. It is stateful, meaning
+  // that it has a State object (defined below) that contains fields that affect
+  // how it looks.
+
+  // This class is the configuration for the state. It holds the values (in this
+  // case the title) provided by the parent (in this case the App widget) and
+  // used by the build method of the State. Fields in a Widget subclass are
+  // always marked "final".
+
+  final String title;
+
+  @override
+  _MyHomePageState createState() => _MyHomePageState();
+}
+
+class _MyHomePageState extends State<MyHomePage> {
+  int _counter = 0;
+
+  void _incrementCounter() {
+    setState(() {
+      // This call to setState tells the Flutter framework that something has
+      // changed in this State, which causes it to rerun the build method below
+      // so that the display can reflect the updated values. If we changed
+      // _counter without calling setState(), then the build method would not be
+      // called again, and so nothing would appear to happen.
+      _counter++;
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    // This method is rerun every time setState is called, for instance as done
+    // by the _incrementCounter method above.
+    //
+    // The Flutter framework has been optimized to make rerunning build methods
+    // fast, so that you can just rebuild anything that needs updating rather
+    // than having to individually change instances of widgets.
+    return Scaffold(
+      appBar: AppBar(
+        // Here we take the value from the MyHomePage object that was created by
+        // the App.build method, and use it to set our appbar title.
+        title: Text(widget.title),
+      ),
+      body: Center(
+        // Center is a layout widget. It takes a single child and positions it
+        // in the middle of the parent.
+        child: Column(
+          // Column is also a layout widget. It takes a list of children and
+          // arranges them vertically. By default, it sizes itself to fit its
+          // children horizontally, and tries to be as tall as its parent.
+          //
+          // Invoke "debug painting" (press "p" in the console, choose the
+          // "Toggle Debug Paint" action from the Flutter Inspector in Android
+          // Studio, or the "Toggle Debug Paint" command in Visual Studio Code)
+          // to see the wireframe for each widget.
+          //
+          // Column has various properties to control how it sizes itself and
+          // how it positions its children. Here we use mainAxisAlignment to
+          // center the children vertically; the main axis here is the vertical
+          // axis because Columns are vertical (the cross axis would be
+          // horizontal).
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: <Widget>[
+            Text(
+              'You have pushed the button this many times:',
+            ),
+            Text(
+              '$_counter',
+              style: Theme.of(context).textTheme.headline4,
+            ),
+          ],
+        ),
+      ),
+      floatingActionButton: FloatingActionButton(
+        onPressed: _incrementCounter,
+        tooltip: 'Increment',
+        child: Icon(Icons.add),
+      ), // This trailing comma makes auto-formatting nicer for build methods.
+    );
+  }
+}
diff --git a/app/linux/.gitignore b/app/linux/.gitignore
new file mode 100644
index 0000000..d3896c9
--- /dev/null
+++ b/app/linux/.gitignore
@@ -0,0 +1 @@
+flutter/ephemeral
diff --git a/app/linux/CMakeLists.txt b/app/linux/CMakeLists.txt
new file mode 100644
index 0000000..f3ce7de
--- /dev/null
+++ b/app/linux/CMakeLists.txt
@@ -0,0 +1,116 @@
+cmake_minimum_required(VERSION 3.10)
+project(runner LANGUAGES CXX)
+
+set(BINARY_NAME "dde-gesture-manager")
+set(APPLICATION_ID "com.debuggerx.dde_gesture_manager")
+
+cmake_policy(SET CMP0063 NEW)
+
+set(CMAKE_INSTALL_RPATH "$ORIGIN/lib")
+
+# Root filesystem for cross-building.
+if(FLUTTER_TARGET_PLATFORM_SYSROOT)
+  set(CMAKE_SYSROOT ${FLUTTER_TARGET_PLATFORM_SYSROOT})
+  set(CMAKE_FIND_ROOT_PATH ${CMAKE_SYSROOT})
+  set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+  set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
+  set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+  set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+endif()
+
+# Configure build options.
+if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
+  set(CMAKE_BUILD_TYPE "Debug" CACHE
+    STRING "Flutter build mode" FORCE)
+  set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS
+    "Debug" "Profile" "Release")
+endif()
+
+# Compilation settings that should be applied to most targets.
+function(APPLY_STANDARD_SETTINGS TARGET)
+  target_compile_features(${TARGET} PUBLIC cxx_std_14)
+  target_compile_options(${TARGET} PRIVATE -Wall -Werror)
+  target_compile_options(${TARGET} PRIVATE "$<$<NOT:$<CONFIG:Debug>>:-O3>")
+  target_compile_definitions(${TARGET} PRIVATE "$<$<NOT:$<CONFIG:Debug>>:NDEBUG>")
+endfunction()
+
+set(FLUTTER_MANAGED_DIR "${CMAKE_CURRENT_SOURCE_DIR}/flutter")
+
+# Flutter library and tool build rules.
+add_subdirectory(${FLUTTER_MANAGED_DIR})
+
+# System-level dependencies.
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(GTK REQUIRED IMPORTED_TARGET gtk+-3.0)
+
+add_definitions(-DAPPLICATION_ID="${APPLICATION_ID}")
+
+# Application build
+add_executable(${BINARY_NAME}
+  "main.cc"
+  "my_application.cc"
+  "${FLUTTER_MANAGED_DIR}/generated_plugin_registrant.cc"
+)
+apply_standard_settings(${BINARY_NAME})
+target_link_libraries(${BINARY_NAME} PRIVATE flutter)
+target_link_libraries(${BINARY_NAME} PRIVATE PkgConfig::GTK)
+add_dependencies(${BINARY_NAME} flutter_assemble)
+# Only the install-generated bundle's copy of the executable will launch
+# correctly, since the resources must in the right relative locations. To avoid
+# people trying to run the unbundled copy, put it in a subdirectory instead of
+# the default top-level location.
+set_target_properties(${BINARY_NAME}
+  PROPERTIES
+  RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/intermediates_do_not_run"
+)
+
+# Generated plugin build rules, which manage building the plugins and adding
+# them to the application.
+include(flutter/generated_plugins.cmake)
+
+
+# === Installation ===
+# By default, "installing" just makes a relocatable bundle in the build
+# directory.
+set(BUILD_BUNDLE_DIR "${PROJECT_BINARY_DIR}/bundle")
+if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
+  set(CMAKE_INSTALL_PREFIX "${BUILD_BUNDLE_DIR}" CACHE PATH "..." FORCE)
+endif()
+
+# Start with a clean build bundle directory every time.
+install(CODE "
+  file(REMOVE_RECURSE \"${BUILD_BUNDLE_DIR}/\")
+  " COMPONENT Runtime)
+
+set(INSTALL_BUNDLE_DATA_DIR "${CMAKE_INSTALL_PREFIX}/data")
+set(INSTALL_BUNDLE_LIB_DIR "${CMAKE_INSTALL_PREFIX}/lib")
+
+install(TARGETS ${BINARY_NAME} RUNTIME DESTINATION "${CMAKE_INSTALL_PREFIX}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_ICU_DATA_FILE}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+  COMPONENT Runtime)
+
+if(PLUGIN_BUNDLED_LIBRARIES)
+  install(FILES "${PLUGIN_BUNDLED_LIBRARIES}"
+    DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+    COMPONENT Runtime)
+endif()
+
+# Fully re-copy the assets directory on each build to avoid having stale files
+# from a previous install.
+set(FLUTTER_ASSET_DIR_NAME "flutter_assets")
+install(CODE "
+  file(REMOVE_RECURSE \"${INSTALL_BUNDLE_DATA_DIR}/${FLUTTER_ASSET_DIR_NAME}\")
+  " COMPONENT Runtime)
+install(DIRECTORY "${PROJECT_BUILD_DIR}/${FLUTTER_ASSET_DIR_NAME}"
+  DESTINATION "${INSTALL_BUNDLE_DATA_DIR}" COMPONENT Runtime)
+
+# Install the AOT library on non-Debug builds only.
+if(NOT CMAKE_BUILD_TYPE MATCHES "Debug")
+  install(FILES "${AOT_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+    COMPONENT Runtime)
+endif()
diff --git a/app/linux/flutter/CMakeLists.txt b/app/linux/flutter/CMakeLists.txt
new file mode 100644
index 0000000..33fd580
--- /dev/null
+++ b/app/linux/flutter/CMakeLists.txt
@@ -0,0 +1,87 @@
+cmake_minimum_required(VERSION 3.10)
+
+set(EPHEMERAL_DIR "${CMAKE_CURRENT_SOURCE_DIR}/ephemeral")
+
+# Configuration provided via flutter tool.
+include(${EPHEMERAL_DIR}/generated_config.cmake)
+
+# TODO: Move the rest of this into files in ephemeral. See
+# https://github.com/flutter/flutter/issues/57146.
+
+# Serves the same purpose as list(TRANSFORM ... PREPEND ...),
+# which isn't available in 3.10.
+function(list_prepend LIST_NAME PREFIX)
+    set(NEW_LIST "")
+    foreach(element ${${LIST_NAME}})
+        list(APPEND NEW_LIST "${PREFIX}${element}")
+    endforeach(element)
+    set(${LIST_NAME} "${NEW_LIST}" PARENT_SCOPE)
+endfunction()
+
+# === Flutter Library ===
+# System-level dependencies.
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(GTK REQUIRED IMPORTED_TARGET gtk+-3.0)
+pkg_check_modules(GLIB REQUIRED IMPORTED_TARGET glib-2.0)
+pkg_check_modules(GIO REQUIRED IMPORTED_TARGET gio-2.0)
+
+set(FLUTTER_LIBRARY "${EPHEMERAL_DIR}/libflutter_linux_gtk.so")
+
+# Published to parent scope for install step.
+set(FLUTTER_LIBRARY ${FLUTTER_LIBRARY} PARENT_SCOPE)
+set(FLUTTER_ICU_DATA_FILE "${EPHEMERAL_DIR}/icudtl.dat" PARENT_SCOPE)
+set(PROJECT_BUILD_DIR "${PROJECT_DIR}/build/" PARENT_SCOPE)
+set(AOT_LIBRARY "${PROJECT_DIR}/build/lib/libapp.so" PARENT_SCOPE)
+
+list(APPEND FLUTTER_LIBRARY_HEADERS
+  "fl_basic_message_channel.h"
+  "fl_binary_codec.h"
+  "fl_binary_messenger.h"
+  "fl_dart_project.h"
+  "fl_engine.h"
+  "fl_json_message_codec.h"
+  "fl_json_method_codec.h"
+  "fl_message_codec.h"
+  "fl_method_call.h"
+  "fl_method_channel.h"
+  "fl_method_codec.h"
+  "fl_method_response.h"
+  "fl_plugin_registrar.h"
+  "fl_plugin_registry.h"
+  "fl_standard_message_codec.h"
+  "fl_standard_method_codec.h"
+  "fl_string_codec.h"
+  "fl_value.h"
+  "fl_view.h"
+  "flutter_linux.h"
+)
+list_prepend(FLUTTER_LIBRARY_HEADERS "${EPHEMERAL_DIR}/flutter_linux/")
+add_library(flutter INTERFACE)
+target_include_directories(flutter INTERFACE
+  "${EPHEMERAL_DIR}"
+)
+target_link_libraries(flutter INTERFACE "${FLUTTER_LIBRARY}")
+target_link_libraries(flutter INTERFACE
+  PkgConfig::GTK
+  PkgConfig::GLIB
+  PkgConfig::GIO
+)
+add_dependencies(flutter flutter_assemble)
+
+# === Flutter tool backend ===
+# _phony_ is a non-existent file to force this command to run every time,
+# since currently there's no way to get a full input/output list from the
+# flutter tool.
+add_custom_command(
+  OUTPUT ${FLUTTER_LIBRARY} ${FLUTTER_LIBRARY_HEADERS}
+    ${CMAKE_CURRENT_BINARY_DIR}/_phony_
+  COMMAND ${CMAKE_COMMAND} -E env
+    ${FLUTTER_TOOL_ENVIRONMENT}
+    "${FLUTTER_ROOT}/packages/flutter_tools/bin/tool_backend.sh"
+      ${FLUTTER_TARGET_PLATFORM} ${CMAKE_BUILD_TYPE}
+  VERBATIM
+)
+add_custom_target(flutter_assemble DEPENDS
+  "${FLUTTER_LIBRARY}"
+  ${FLUTTER_LIBRARY_HEADERS}
+)
diff --git a/app/linux/flutter/generated_plugin_registrant.cc b/app/linux/flutter/generated_plugin_registrant.cc
new file mode 100644
index 0000000..d38195a
--- /dev/null
+++ b/app/linux/flutter/generated_plugin_registrant.cc
@@ -0,0 +1,9 @@
+//
+//  Generated file. Do not edit.
+//
+
+#include "generated_plugin_registrant.h"
+
+
+void fl_register_plugins(FlPluginRegistry* registry) {
+}
diff --git a/app/linux/flutter/generated_plugin_registrant.h b/app/linux/flutter/generated_plugin_registrant.h
new file mode 100644
index 0000000..9bf7478
--- /dev/null
+++ b/app/linux/flutter/generated_plugin_registrant.h
@@ -0,0 +1,13 @@
+//
+//  Generated file. Do not edit.
+//
+
+#ifndef GENERATED_PLUGIN_REGISTRANT_
+#define GENERATED_PLUGIN_REGISTRANT_
+
+#include <flutter_linux/flutter_linux.h>
+
+// Registers Flutter plugins.
+void fl_register_plugins(FlPluginRegistry* registry);
+
+#endif  // GENERATED_PLUGIN_REGISTRANT_
diff --git a/app/linux/flutter/generated_plugins.cmake b/app/linux/flutter/generated_plugins.cmake
new file mode 100644
index 0000000..51436ae
--- /dev/null
+++ b/app/linux/flutter/generated_plugins.cmake
@@ -0,0 +1,15 @@
+#
+# Generated file, do not edit.
+#
+
+list(APPEND FLUTTER_PLUGIN_LIST
+)
+
+set(PLUGIN_BUNDLED_LIBRARIES)
+
+foreach(plugin ${FLUTTER_PLUGIN_LIST})
+  add_subdirectory(flutter/ephemeral/.plugin_symlinks/${plugin}/linux plugins/${plugin})
+  target_link_libraries(${BINARY_NAME} PRIVATE ${plugin}_plugin)
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES $<TARGET_FILE:${plugin}_plugin>)
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${plugin}_bundled_libraries})
+endforeach(plugin)
diff --git a/app/linux/main.cc b/app/linux/main.cc
new file mode 100644
index 0000000..e7c5c54
--- /dev/null
+++ b/app/linux/main.cc
@@ -0,0 +1,6 @@
+#include "my_application.h"
+
+int main(int argc, char** argv) {
+  g_autoptr(MyApplication) app = my_application_new();
+  return g_application_run(G_APPLICATION(app), argc, argv);
+}
diff --git a/app/linux/my_application.cc b/app/linux/my_application.cc
new file mode 100644
index 0000000..0bb2b85
--- /dev/null
+++ b/app/linux/my_application.cc
@@ -0,0 +1,105 @@
+#include "my_application.h"
+
+#include <flutter_linux/flutter_linux.h>
+#ifdef GDK_WINDOWING_X11
+#include <gdk/gdkx.h>
+#endif
+
+#include "flutter/generated_plugin_registrant.h"
+
+struct _MyApplication {
+  GtkApplication parent_instance;
+  char** dart_entrypoint_arguments;
+};
+
+G_DEFINE_TYPE(MyApplication, my_application, GTK_TYPE_APPLICATION)
+
+// Implements GApplication::activate.
+static void my_application_activate(GApplication* application) {
+  MyApplication* self = MY_APPLICATION(application);
+  GtkWindow* window =
+      GTK_WINDOW(gtk_application_window_new(GTK_APPLICATION(application)));
+
+  // Use a header bar when running in GNOME as this is the common style used
+  // by applications and is the setup most users will be using (e.g. Ubuntu
+  // desktop).
+  // If running on X and not using GNOME then just use a traditional title bar
+  // in case the window manager does more exotic layout, e.g. tiling.
+  // If running on Wayland assume the header bar will work (may need changing
+  // if future cases occur).
+  gboolean use_header_bar = TRUE;
+#ifdef GDK_WINDOWING_X11
+  GdkScreen *screen = gtk_window_get_screen(window);
+  if (GDK_IS_X11_SCREEN(screen)) {
+     const gchar* wm_name = gdk_x11_screen_get_window_manager_name(screen);
+     if (g_strcmp0(wm_name, "GNOME Shell") != 0) {
+       use_header_bar = FALSE;
+     }
+  }
+#endif
+  if (use_header_bar) {
+    GtkHeaderBar *header_bar = GTK_HEADER_BAR(gtk_header_bar_new());
+    gtk_widget_show(GTK_WIDGET(header_bar));
+    gtk_header_bar_set_title(header_bar, "DDE Gesture Manager");
+    gtk_header_bar_set_show_close_button(header_bar, TRUE);
+    gtk_window_set_titlebar(window, GTK_WIDGET(header_bar));
+  }
+  else {
+    gtk_window_set_title(window, "DDE Gesture Manager");
+  }
+
+  gtk_window_set_default_size(window, 1280, 720);
+  gtk_widget_show(GTK_WIDGET(window));
+
+  g_autoptr(FlDartProject) project = fl_dart_project_new();
+  fl_dart_project_set_dart_entrypoint_arguments(project, self->dart_entrypoint_arguments);
+
+  FlView* view = fl_view_new(project);
+  gtk_widget_show(GTK_WIDGET(view));
+  gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET(view));
+
+  fl_register_plugins(FL_PLUGIN_REGISTRY(view));
+
+  gtk_widget_grab_focus(GTK_WIDGET(view));
+}
+
+// Implements GApplication::local_command_line.
+static gboolean my_application_local_command_line(GApplication* application, gchar ***arguments, int *exit_status) {
+  MyApplication* self = MY_APPLICATION(application);
+  // Strip out the first argument as it is the binary name.
+  self->dart_entrypoint_arguments = g_strdupv(*arguments + 1);
+
+  g_autoptr(GError) error = nullptr;
+  if (!g_application_register(application, nullptr, &error)) {
+     g_warning("Failed to register: %s", error->message);
+     *exit_status = 1;
+     return TRUE;
+  }
+
+  g_application_activate(application);
+  *exit_status = 0;
+
+  return TRUE;
+}
+
+// Implements GObject::dispose.
+static void my_application_dispose(GObject *object) {
+  MyApplication* self = MY_APPLICATION(object);
+  g_clear_pointer(&self->dart_entrypoint_arguments, g_strfreev);
+  G_OBJECT_CLASS(my_application_parent_class)->dispose(object);
+}
+
+static void my_application_class_init(MyApplicationClass* klass) {
+  G_APPLICATION_CLASS(klass)->activate = my_application_activate;
+  G_APPLICATION_CLASS(klass)->local_command_line = my_application_local_command_line;
+  G_OBJECT_CLASS(klass)->dispose = my_application_dispose;
+}
+
+static void my_application_init(MyApplication* self) {}
+
+MyApplication* my_application_new() {
+  return MY_APPLICATION(g_object_new(my_application_get_type(),
+                                     "application-id", APPLICATION_ID,
+                                     "flags", G_APPLICATION_NON_UNIQUE,
+                                     nullptr));
+}
diff --git a/app/linux/my_application.h b/app/linux/my_application.h
new file mode 100644
index 0000000..72271d5
--- /dev/null
+++ b/app/linux/my_application.h
@@ -0,0 +1,18 @@
+#ifndef FLUTTER_MY_APPLICATION_H_
+#define FLUTTER_MY_APPLICATION_H_
+
+#include <gtk/gtk.h>
+
+G_DECLARE_FINAL_TYPE(MyApplication, my_application, MY, APPLICATION,
+                     GtkApplication)
+
+/**
+ * my_application_new:
+ *
+ * Creates a new Flutter-based application.
+ *
+ * Returns: a new #MyApplication.
+ */
+MyApplication* my_application_new();
+
+#endif  // FLUTTER_MY_APPLICATION_H_
diff --git a/app/pubspec.yaml b/app/pubspec.yaml
new file mode 100644
index 0000000..5e1fa11
--- /dev/null
+++ b/app/pubspec.yaml
@@ -0,0 +1,76 @@
+name: dde_gesture_manager
+description: A new Flutter project.
+
+# The following line prevents the package from being accidentally published to
+# pub.dev using `pub publish`. This is preferred for private packages.
+publish_to: 'none' # Remove this line if you wish to publish to pub.dev
+
+# The following defines the version and build number for your application.
+# A version number is three numbers separated by dots, like 1.2.43
+# followed by an optional build number separated by a +.
+# Both the version and the builder number may be overridden in flutter
+# build by specifying --build-name and --build-number, respectively.
+# In Android, build-name is used as versionName while build-number used as versionCode.
+# Read more about Android versioning at https://developer.android.com/studio/publish/versioning
+# In iOS, build-name is used as CFBundleShortVersionString while build-number used as CFBundleVersion.
+# Read more about iOS versioning at
+# https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
+version: 1.0.0+1
+
+environment:
+  sdk: ">=2.12.0 <3.0.0"
+
+dependencies:
+  flutter:
+    sdk: flutter
+
+
+  # The following adds the Cupertino Icons font to your application.
+  # Use with the CupertinoIcons class for iOS style icons.
+  cupertino_icons: ^1.0.2
+
+dev_dependencies:
+  flutter_test:
+    sdk: flutter
+
+# For information on the generic Dart part of this file, see the
+# following page: https://dart.dev/tools/pub/pubspec
+
+# The following section is specific to Flutter.
+flutter:
+
+  # The following line ensures that the Material Icons font is
+  # included with your application, so that you can use the icons in
+  # the material Icons class.
+  uses-material-design: true
+
+  # To add assets to your application, add an assets section, like this:
+  # assets:
+  #   - images/a_dot_burr.jpeg
+  #   - images/a_dot_ham.jpeg
+
+  # An image asset can refer to one or more resolution-specific "variants", see
+  # https://flutter.dev/assets-and-images/#resolution-aware.
+
+  # For details regarding adding assets from package dependencies, see
+  # https://flutter.dev/assets-and-images/#from-packages
+
+  # To add custom fonts to your application, add a fonts section here,
+  # in this "flutter" section. Each entry in this list should have a
+  # "family" key with the font family name, and a "fonts" key with a
+  # list giving the asset and other descriptors for the font. For
+  # example:
+  # fonts:
+  #   - family: Schyler
+  #     fonts:
+  #       - asset: fonts/Schyler-Regular.ttf
+  #       - asset: fonts/Schyler-Italic.ttf
+  #         style: italic
+  #   - family: Trajan Pro
+  #     fonts:
+  #       - asset: fonts/TrajanPro.ttf
+  #       - asset: fonts/TrajanPro_Bold.ttf
+  #         weight: 700
+  #
+  # For details regarding fonts from package dependencies,
+  # see https://flutter.dev/custom-fonts/#from-packages
diff --git a/app/test/widget_test.dart b/app/test/widget_test.dart
new file mode 100644
index 0000000..da16bf1
--- /dev/null
+++ b/app/test/widget_test.dart
@@ -0,0 +1,30 @@
+// This is a basic Flutter widget test.
+//
+// To perform an interaction with a widget in your test, use the WidgetTester
+// utility that Flutter provides. For example, you can send tap and scroll
+// gestures. You can also use WidgetTester to find child widgets in the widget
+// tree, read text, and verify that the values of widget properties are correct.
+
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+import 'package:dde_gesture_manager/main.dart';
+
+void main() {
+  testWidgets('Counter increments smoke test', (WidgetTester tester) async {
+    // Build our app and trigger a frame.
+    await tester.pumpWidget(MyApp());
+
+    // Verify that our counter starts at 0.
+    expect(find.text('0'), findsOneWidget);
+    expect(find.text('1'), findsNothing);
+
+    // Tap the '+' icon and trigger a frame.
+    await tester.tap(find.byIcon(Icons.add));
+    await tester.pump();
+
+    // Verify that our counter has incremented.
+    expect(find.text('0'), findsNothing);
+    expect(find.text('1'), findsOneWidget);
+  });
+}
diff --git a/app/web/favicon.png b/app/web/favicon.png
new file mode 100644
index 0000000000000000000000000000000000000000..8aaa46ac1ae21512746f852a42ba87e4165dfdd1
GIT binary patch
literal 917
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diff --git a/app/web/index.html b/app/web/index.html
new file mode 100644
index 0000000..219b60c
--- /dev/null
+++ b/app/web/index.html
@@ -0,0 +1,98 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <!--
+    If you are serving your web app in a path other than the root, change the
+    href value below to reflect the base path you are serving from.
+
+    The path provided below has to start and end with a slash "/" in order for
+    it to work correctly.
+
+    For more details:
+    * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/base
+  -->
+  <base href="/">
+
+  <meta charset="UTF-8">
+  <meta content="IE=Edge" http-equiv="X-UA-Compatible">
+  <meta name="description" content="A new Flutter project.">
+
+  <!-- iOS meta tags & icons -->
+  <meta name="apple-mobile-web-app-capable" content="yes">
+  <meta name="apple-mobile-web-app-status-bar-style" content="black">
+  <meta name="apple-mobile-web-app-title" content="dde_gesture_manager">
+  <link rel="apple-touch-icon" href="icons/Icon-192.png">
+
+  <title>dde_gesture_manager</title>
+  <link rel="manifest" href="manifest.json">
+</head>
+<body>
+  <!-- This script installs service_worker.js to provide PWA functionality to
+       application. For more information, see:
+       https://developers.google.com/web/fundamentals/primers/service-workers -->
+  <script>
+    var serviceWorkerVersion = null;
+    var scriptLoaded = false;
+    function loadMainDartJs() {
+      if (scriptLoaded) {
+        return;
+      }
+      scriptLoaded = true;
+      var scriptTag = document.createElement('script');
+      scriptTag.src = 'main.dart.js';
+      scriptTag.type = 'application/javascript';
+      document.body.append(scriptTag);
+    }
+
+    if ('serviceWorker' in navigator) {
+      // Service workers are supported. Use them.
+      window.addEventListener('load', function () {
+        // Wait for registration to finish before dropping the <script> tag.
+        // Otherwise, the browser will load the script multiple times,
+        // potentially different versions.
+        var serviceWorkerUrl = 'flutter_service_worker.js?v=' + serviceWorkerVersion;
+        navigator.serviceWorker.register(serviceWorkerUrl)
+          .then((reg) => {
+            function waitForActivation(serviceWorker) {
+              serviceWorker.addEventListener('statechange', () => {
+                if (serviceWorker.state == 'activated') {
+                  console.log('Installed new service worker.');
+                  loadMainDartJs();
+                }
+              });
+            }
+            if (!reg.active && (reg.installing || reg.waiting)) {
+              // No active web worker and we have installed or are installing
+              // one for the first time. Simply wait for it to activate.
+              waitForActivation(reg.installing ?? reg.waiting);
+            } else if (!reg.active.scriptURL.endsWith(serviceWorkerVersion)) {
+              // When the app updates the serviceWorkerVersion changes, so we
+              // need to ask the service worker to update.
+              console.log('New service worker available.');
+              reg.update();
+              waitForActivation(reg.installing);
+            } else {
+              // Existing service worker is still good.
+              console.log('Loading app from service worker.');
+              loadMainDartJs();
+            }
+          });
+
+        // If service worker doesn't succeed in a reasonable amount of time,
+        // fallback to plaint <script> tag.
+        setTimeout(() => {
+          if (!scriptLoaded) {
+            console.warn(
+              'Failed to load app from service worker. Falling back to plain <script> tag.',
+            );
+            loadMainDartJs();
+          }
+        }, 4000);
+      });
+    } else {
+      // Service workers not supported. Just drop the <script> tag.
+      loadMainDartJs();
+    }
+  </script>
+</body>
+</html>
diff --git a/app/web/manifest.json b/app/web/manifest.json
new file mode 100644
index 0000000..e8962d5
--- /dev/null
+++ b/app/web/manifest.json
@@ -0,0 +1,23 @@
+{
+    "name": "dde_gesture_manager",
+    "short_name": "dde_gesture_manager",
+    "start_url": ".",
+    "display": "standalone",
+    "background_color": "#0175C2",
+    "theme_color": "#0175C2",
+    "description": "A new Flutter project.",
+    "orientation": "portrait-primary",
+    "prefer_related_applications": false,
+    "icons": [
+        {
+            "src": "icons/Icon-192.png",
+            "sizes": "192x192",
+            "type": "image/png"
+        },
+        {
+            "src": "icons/Icon-512.png",
+            "sizes": "512x512",
+            "type": "image/png"
+        }
+    ]
+}