desktop_webview_window 0.1.3

Show a webview window on your flutter deksktop application.

example/lib/main.dart

import 'dart:io';

import 'package:desktop_webview_window/desktop_webview_window.dart';
import 'package:flutter/material.dart';

void main(List<String> args) {
  debugPrint('args: $args');
  if (runWebViewTitleBarWidget(args)) {
    return;
  }
  WidgetsFlutterBinding.ensureInitialized();
  runApp(const MyApp());
}

class MyApp extends StatefulWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  final TextEditingController _controller = TextEditingController(
    text: 'https://example.com',
  );

  bool? _webviewAvailable;

  @override
  void initState() {
    super.initState();
    WebviewWindow.isWebviewAvailable().then((value) {
      setState(() {
        _webviewAvailable = value;
      });
    });
  }

  @override
  void dispose() {
    _controller.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Plugin example app'),
          actions: [
            IconButton(
              onPressed: () async {
                final webview = await WebviewWindow.create(
                  configuration: CreateConfiguration(
                    windowHeight: 1280,
                    windowWidth: 720,
                    title: "ExampleTestWindow",
                    titleBarTopPadding: Platform.isMacOS ? 20 : 0,
                  ),
                );
                webview
                  ..registerJavaScriptMessageHandler("test", (name, body) {
                    debugPrint('on javaScipt message: $name $body');
                  })
                  ..setApplicationNameForUserAgent(" WebviewExample/1.0.0")
                  ..setPromptHandler((prompt, defaultText) {
                    if (prompt == "test") {
                      return "Hello World!";
                    } else if (prompt == "init") {
                      return "initial prompt";
                    }
                    return "";
                  })
                  ..addScriptToExecuteOnDocumentCreated("""
  const mixinContext = {
    platform: 'Desktop',
    conversation_id: 'conversationId',
    immersive: false,
    app_version: '1.0.0',
    appearance: 'dark',
  }
  window.MixinContext = {
    getContext: function() {
      return JSON.stringify(mixinContext)
    }
  }
""")
                  ..launch("http://localhost:3000/test.html");
              },
              icon: const Icon(Icons.bug_report),
            )
          ],
        ),
        body: Center(
          child: Padding(
            padding: const EdgeInsets.symmetric(horizontal: 20),
            child: Column(
              mainAxisSize: MainAxisSize.min,
              crossAxisAlignment: CrossAxisAlignment.center,
              children: [
                TextField(controller: _controller),
                const SizedBox(height: 16),
                TextButton(
                  onPressed: _webviewAvailable != true
                      ? null
                      : () async {
                          final webview = await WebviewWindow.create();
                          webview
                            ..setBrightness(Brightness.dark)
                            ..setApplicationNameForUserAgent(
                                "WebviewExample/1.0.0")
                            ..launch(_controller.text)
                            ..onClose.whenComplete(() {
                              debugPrint("on close");
                            });
                        },
                  child: const Text('Open'),
                ),
                const SizedBox(height: 20),
                TextButton(
                  onPressed: () async {
                    await WebviewWindow.clearAll();
                    debugPrint('clear complete');
                  },
                  child: const Text('Clear all'),
                )
              ],
            ),
          ),
        ),
      ),
    );
  }
}