Merge branch '3-android-mobile-app-web-view' into 'master'

Mobile app initial implementation.

Closes #3

See merge request !1

lib/main.dart

+import 'package:flutter/material.dart';
+import 'package:Vereign/src/app.dart';
+import 'config.dart';
+void main() {
+  Config.appFlavor = Flavor.PRODUCTION;
+  runApp(App());
+}
\ No newline at end of file

lib/src/app.dart

+// app.dart
+import 'screens/splashscreen.dart';
+import 'package:flutter/material.dart';
+import 'screens/home.dart';
+import 'package:flutter/services.dart';
+import 'dart:async';
+import 'dart:developer';
+import 'package:shared_preferences/shared_preferences.dart';
+
+import 'package:uni_links/uni_links.dart';
+
+class App extends StatelessWidget {
+  Future<Widget> initApplication() async {
+    Uri initialUri;
+
+    try {
+      initialUri = await getInitialUri();
+    } on PlatformException {
+      initialUri = null;
+    } on FormatException {
+      initialUri = null;
+    }
+
+    final prefs = await SharedPreferences.getInstance();
+    final host = prefs.getString('host');
+
+    return new MainApp(initialUri: initialUri, initialHost: host);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+        title: 'Vereign',
+        theme: ThemeData(
+            primaryColor: Color(0xFFd51d32),
+            fontFamily: "Arial",
+            textTheme: TextTheme(
+                button: TextStyle(color: Colors.white, fontSize: 18.0),
+                title: TextStyle(color: Colors.red))),
+        home: new SplashScreen(
+          navigateAfterFuture: initApplication,
+        )
+    );
+
+
+  }
+}
+
+class MainApp extends StatefulWidget {
+  MainApp({ @required this.initialUri, this.initialHost });
+  final Uri initialUri;
+  final String initialHost;
+
+  @override
+  _MainAppState createState() => _MainAppState();
+}
+
+class _MainAppState extends State<MainApp> {
+  StreamSubscription _sub;
+
+  String _appMode = "";
+
+  // Url of the app which invoked OAuth
+  String _invokerURL;
+  String _host;
+
+  @override
+  initState() {
+    super.initState();
+    initUniLinks();
+  }
+
+  @override
+  dispose() {
+    if (_sub != null) _sub.cancel();
+    super.dispose();
+  }
+
+  Future<Null> initUniLinks() async {
+    updateAppMode(widget.initialUri);
+
+    _sub = getUriLinksStream().listen((Uri uri) {
+      updateAppMode(uri);
+    }, onError: (err) {
+      log('got err: $err');
+    });
+  }
+
+  updateAppMode(Uri uri) {
+    if (uri?.path == "/authorize") {
+      setState(() {
+        _appMode = "oauth";
+        _invokerURL = uri.queryParameters["invokerUrl"];
+      });
+    } else {
+      setState(() {
+        _appMode = "app";
+      });
+    }
+  }
+
+  setMode(String mode) {
+    setState(() {
+      _appMode = mode;
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return new Scaffold(
+      appBar: new AppBar(title: Text("Vereign")),
+      body: Home(
+        mode: _appMode,
+        invokerURL: _invokerURL,
+        setMode: setMode,
+        host: widget.initialHost
+      )
+    );
+  }
+}
\ No newline at end of file

lib/src/screens/home.dart

+import 'package:flutter/material.dart';
+import 'package:flutter_web_browser/flutter_web_browser.dart';
+import 'package:flutter_app_auth_wrapper/flutter_app_auth_wrapper.dart';
+import 'package:url_launcher/url_launcher.dart';
+import 'dart:developer';
+import 'dart:convert';
+import 'dart:async';
+import 'package:shared_preferences/shared_preferences.dart';
+
+import '../../config.dart';
+
+class Home extends StatefulWidget {
+  Home({@required this.mode, @required this.invokerURL, @required this.setMode, @required this.host});
+  final String mode;
+  final String invokerURL;
+  final String host;
+  final void Function(String) setMode;
+
+  @override
+  _HomeState createState() => _HomeState();
+}
+
+class _HomeState extends State<Home> {
+  String _host = Config.appFlavor == Flavor.DEVELOPMENT ? Config.HOSTS[0] : Config.DEFAULT_APP_HOST;
+  bool _hidden = true;
+
+  @override
+  initState() {
+    super.initState();
+    if (widget.host != null) {
+      setState(() {
+        _host = widget.host;
+      });
+    }
+
+    showMode(widget.mode);
+
+    FlutterAppAuthWrapper.eventStream().listen((data) {
+      var token = json.decode(data.toString())["access_token"];
+      _showAlert(token);
+      widget.setMode("");
+    }, onError: (error) {
+      log("Err $error");
+      widget.setMode("");
+    });
+
+    Timer(
+        Duration(seconds: 3),
+        () {
+          setState(() {
+            _hidden = false;
+          });
+        }
+    );
+  }
+
+  Future<void> _showAlert(token) {
+    return showDialog<void>(
+      context: context,
+      builder: (BuildContext context) {
+        return AlertDialog(
+          title: Text('Authorization success'),
+          actions: <Widget>[
+            FlatButton(
+              child: Text('Go back'),
+              onPressed: () async {
+                Navigator.of(context).pop();
+
+                log("Open ${widget.invokerURL}");
+                try {
+                  await launch("${widget.invokerURL}?token=$token&host=$_host");
+                } catch (e) {
+                  log("Error launching url ${widget.invokerURL}");
+                }
+              },
+            ),
+          ],
+        );
+      },
+    );
+  }
+
+  @override
+  void didUpdateWidget(Home oldWidget) {
+    // this method IS called when parent widget passes new "props"
+    // unlike React, this method IS called _before_ the build
+    // unlike React, this method ISN'T called after setState()
+
+    if (widget.host != oldWidget.host && widget.host != null) {
+      setState(() {
+        _host = widget.host;
+      });
+    }
+
+    if (widget.mode != oldWidget.mode) {
+      showMode(widget.mode);
+    }
+
+    super.didUpdateWidget(oldWidget);
+  }
+
+  showMode(mode) {
+    if (mode == "app") {
+      openVereign();
+    } else if (mode == "oauth") {
+      startOAuth();
+    }
+  }
+
+  openVereign() {
+    FlutterWebBrowser.openWebPage(url: _host, androidToolbarColor: Color(0xFFd51d32));
+  }
+
+  startOAuth() {
+    var params = Config.getOAuthParams(host: _host);
+
+    FlutterAppAuthWrapper.startAuth(
+      AuthConfig(
+        clientId: params["clientId"],
+        clientSecret: params["clientSecret"],
+        redirectUrl: params["redirectUrl"],
+        state: "login",
+        prompt: "consent",
+        endpoint: AuthEndpoint(
+            auth: params["authEndpoint"], token: params["tokenEndpoint"]),
+        scopes: [
+          "user_account_status",
+          "user_territory",
+          "user_profile"
+        ],
+      ),
+    );
+  }
+
+
+
+  @override
+  Widget build(BuildContext context) {
+    if (_hidden) {
+      return Scaffold();
+    }
+
+    var children = <Widget>[
+      _urlButton(context, "Open Dashboard", openVereign),
+      _urlButton(context, "Authorize with Vereign", startOAuth)
+    ];
+
+    if (Config.appFlavor == Flavor.DEVELOPMENT) {
+      children.add(
+        wrapInContainer(
+          DropdownButton<String>(
+            value: _host,
+            onChanged: (String newValue) async {
+              setState(() {
+                _host = newValue;
+              });
+
+              final prefs = await SharedPreferences.getInstance();
+              prefs.setString("host", newValue);
+            },
+            items: Config.HOSTS
+                .map<DropdownMenuItem<String>>((String value) {
+                  return DropdownMenuItem<String>(
+                    value: value,
+                    child: Text(value),
+                  );
+                })
+                .toList(),
+            )
+        )
+      );
+    }
+
+    return Scaffold(
+        body: SafeArea(
+            child: SingleChildScrollView(
+                child: Column(
+                  mainAxisAlignment: MainAxisAlignment.center,
+                  crossAxisAlignment: CrossAxisAlignment.stretch,
+                  children: children
+                ))));
+  }
+
+  Widget wrapInContainer(Widget widget) {
+    return Container(
+      padding: EdgeInsets.all(10.0),
+      child: widget,
+    );
+  }
+
+  Widget _urlButton(BuildContext context, String title, listener) {
+    return wrapInContainer(
+        FlatButton(
+          color: Theme.of(context).primaryColor,
+          textColor: Colors.white,
+          padding: const EdgeInsets.symmetric(horizontal: 50.0, vertical: 15.0),
+          child: Text(title),
+          onPressed: listener
+        )
+    );
+  }
+}
\ No newline at end of file

lib/src/screens/splashscreen.dart

+import 'dart:core';
+import 'dart:async';
+import 'package:flutter/material.dart';
+
+class SplashScreen extends StatefulWidget {
+  final dynamic navigateAfterFuture;
+  SplashScreen({this.navigateAfterFuture});
+
+  @override
+  _SplashScreenState createState() => _SplashScreenState();
+}
+
+class _SplashScreenState extends State<SplashScreen> {
+  @override
+  void initState() {
+    super.initState();
+
+    load();
+  }
+
+  load() async {
+    var newWidget = await widget.navigateAfterFuture();
+
+    // Show loader additional 2 seconds
+    Timer(
+      Duration(seconds: 1),
+        () {
+          Navigator.of(context).pushReplacement(new MaterialPageRoute(builder: (BuildContext context) => newWidget));
+        }
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      body: new InkWell(
+        child:new Stack(
+          fit: StackFit.expand,
+          children: <Widget>[
+            new Container(
+              decoration: new BoxDecoration(
+                color: Color(0xFFd51d32),
+              ),
+            ),
+            new Column(
+              mainAxisAlignment: MainAxisAlignment.start,
+              children: <Widget>[
+                new Expanded(
+                  flex: 2,
+                  child: new Container(
+                      child: new Image.asset('assets/images/vereign_logo_text.png'),
+                      padding: EdgeInsets.all(40)
+                  ),
+                ),
+                Expanded(
+                  flex: 1,
+                  child: Column(
+                    mainAxisAlignment: MainAxisAlignment.center,
+                    children: <Widget>[
+
+                      CircularProgressIndicator(
+                        valueColor: new AlwaysStoppedAnimation<Color>(Colors.white),
+                      ),
+                      Padding(
+                        padding: const EdgeInsets.only(top: 20.0),
+                      ),
+                      new Text('Loading', style: new TextStyle(
+                          color: Colors.white
+                      ))
+                    ],
+                  ),
+                ),
+              ],
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

pubspec.lock

+# Generated by pub
+# See https://dart.dev/tools/pub/glossary#lockfile
+packages:
+  archive:
+    dependency: transitive
+    description:
+      name: archive
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.10"
+  args:
+    dependency: transitive
+    description:
+      name: args
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.5.2"
+  async:
+    dependency: transitive
+    description:
+      name: async
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.2.0"
+  boolean_selector:
+    dependency: transitive
+    description:
+      name: boolean_selector
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.4"
+  charcode:
+    dependency: transitive
+    description:
+      name: charcode
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.2"
+  collection:
+    dependency: transitive
+    description:
+      name: collection
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.14.11"
+  convert:
+    dependency: transitive
+    description:
+      name: convert
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.1"
+  crypto:
+    dependency: transitive
+    description:
+      name: crypto
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.6"
+  cupertino_icons:
+    dependency: "direct main"
+    description:
+      name: cupertino_icons
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.2"
+  flutter:
+    dependency: "direct main"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  flutter_app_auth_wrapper:
+    dependency: "direct main"
+    description:
+      name: flutter_app_auth_wrapper
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.1+3"
+  flutter_launcher_icons:
+    dependency: "direct dev"
+    description:
+      name: flutter_launcher_icons
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.7.2+1"
+  flutter_test:
+    dependency: "direct dev"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  flutter_web_browser:
+    dependency: "direct main"
+    description:
+      path: "."
+      ref: HEAD
+      resolved-ref: "5d169abf4fb4cb994c26173d5a7a3dd13b6921a2"
+      url: "git@github.com:markin-io/flutter_web_browser.git"
+    source: git
+    version: "0.11.0"
+  image:
+    dependency: transitive
+    description:
+      name: image
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.4"
+  matcher:
+    dependency: transitive
+    description:
+      name: matcher
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.12.5"
+  meta:
+    dependency: transitive
+    description:
+      name: meta
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.6"
+  path:
+    dependency: transitive
+    description:
+      name: path
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.6.2"
+  pedantic:
+    dependency: transitive
+    description:
+      name: pedantic
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.7.0"
+  petitparser:
+    dependency: transitive
+    description:
+      name: petitparser
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.4.0"
+  quiver:
+    dependency: transitive
+    description:
+      name: quiver
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.3"
+  shared_preferences:
+    dependency: "direct main"
+    description:
+      name: shared_preferences
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.5.3+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: "1.5.5"
+  stack_trace:
+    dependency: transitive
+    description:
+      name: stack_trace
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.9.3"
+  stream_channel:
+    dependency: transitive
+    description:
+      name: stream_channel
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.0"
+  string_scanner:
+    dependency: transitive
+    description:
+      name: string_scanner
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.4"
+  term_glyph:
+    dependency: transitive
+    description:
+      name: term_glyph
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0"
+  test_api:
+    dependency: transitive
+    description:
+      name: test_api
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.2.5"
+  typed_data:
+    dependency: transitive
+    description:
+      name: typed_data
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.6"
+  uni_links:
+    dependency: "direct main"
+    description:
+      name: uni_links
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.2.0"
+  url_launcher:
+    dependency: "direct main"
+    description:
+      name: url_launcher
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "5.1.0"
+  vector_math:
+    dependency: transitive
+    description:
+      name: vector_math
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.8"
+  xml:
+    dependency: transitive
+    description:
+      name: xml
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.5.0"
+  yaml:
+    dependency: transitive
+    description:
+      name: yaml
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.16"
+sdks:
+  dart: ">=2.4.0 <3.0.0"
+  flutter: ">=1.5.0 <2.0.0"

pubspec.yaml

+name: Vereign
+description: Vereign mobile application.
+
+# 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: ">=2.1.0 <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: ^0.1.2
+  flutter_web_browser:
+    # Use
+    git: git@github.com:markin-io/flutter_web_browser.git
+  uni_links: 0.2.0
+  flutter_app_auth_wrapper: ^0.1.1+3
+  url_launcher: 5.1.0
+  shared_preferences: 0.5.3+4
+
+dev_dependencies:
+  flutter_test:
+    sdk: flutter
+  flutter_launcher_icons: "^0.7.2"
+
+flutter_icons:
+  android: true
+  ios: true
+  image_path: "assets/images/vereign_icon.png"
+
+
+# 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:
+    - assets/images/vereign_logo_text.png
+  #  - 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