import 'dart:async';

import 'package:flutter/material.dart';
import 'package:one_key/utils/event_bus.dart';
import 'package:one_key/widgets/system_app_bar.dart';
import 'package:webview_flutter/webview_flutter.dart';

class WebPage extends StatelessWidget {
  final String title;
  final String url;

  const WebPage({Key key, this.title, this.url}) : super(key: key);
  @override
  Widget build(BuildContext context) {
    final Completer<WebViewController> _controller =
        Completer<WebViewController>();
    return Scaffold(
      appBar: SystemAppBar(title, onTap: () {
        Navigator.of(context).pop();
      }),
      body: WebView(
        initialUrl: "http://colorcun.com/privacy1.html",
        javascriptMode: JavascriptMode.unrestricted,
        onWebViewCreated: (WebViewController webViewController) {
          // Loading.showLoading(context);
          _controller.complete(webViewController);
        },
        javascriptChannels: <JavascriptChannel>[
          _toasterJavascriptChannel(context),
        ].toSet(),
        navigationDelegate: (NavigationRequest request) {
          if (request.url.startsWith('https://www.youtube.com/')) {
            return NavigationDecision.prevent;
          }
          return NavigationDecision.navigate;
        },
        onPageStarted: (String url) {},
        onPageFinished: (String url) {
          // Loading.hideLoading(context);
        },
        gestureNavigationEnabled: true,
      ),
    );
  }

  JavascriptChannel _toasterJavascriptChannel(BuildContext context) {
    return JavascriptChannel(
        name: 'Toaster',
        onMessageReceived: (JavascriptMessage message) {
          Scaffold.of(context).showSnackBar(
            SnackBar(content: Text(message.message)),
          );
        });
  }
}