iosWebViewFix/lib/src/in_app_webview/in_app_webview_controller.dart

import 'dart:io';
import 'dart:collection';
import 'dart:typed_data';
import 'dart:convert';
import 'dart:core';

import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter/widgets.dart';

import 'android/in_app_webview_controller.dart';
import 'ios/in_app_webview_controller.dart';

import '../context_menu.dart';
import '../types.dart';
import '../in_app_browser/in_app_browser.dart';
import '../web_storage/web_storage.dart';
import '../util.dart';
import '../web_message/web_message_channel.dart';
import '../web_message/web_message_listener.dart';
import '../android/webview_feature.dart';

import 'headless_in_app_webview.dart';
import 'in_app_webview.dart';
import 'in_app_webview_settings.dart';
import 'webview.dart';
import '_static_channel.dart';

///List of forbidden names for JavaScript handlers.
// ignore: non_constant_identifier_names
final _JAVASCRIPT_HANDLER_FORBIDDEN_NAMES = UnmodifiableListView<String>([
  "onLoadResource",
  "shouldInterceptAjaxRequest",
  "onAjaxReadyStateChange",
  "onAjaxProgress",
  "shouldInterceptFetchRequest",
  "onPrint",
  "onWindowFocus",
  "onWindowBlur",
  "callAsyncJavaScript",
  "evaluateJavaScriptWithContentWorld"
]);

///Controls a WebView, such as an [InAppWebView] widget instance, a [HeadlessInAppWebView] instance or [InAppBrowser] WebView instance.
///
///If you are using the [InAppWebView] widget, an [InAppWebViewController] instance can be obtained by setting the [InAppWebView.onWebViewCreated]
///callback. Instead, if you are using an [InAppBrowser] instance, you can get it through the [InAppBrowser.webViewController] attribute.
class InAppWebViewController with AndroidInAppWebViewControllerMixin, IOSInAppWebViewControllerMixin {
  WebView? _webview;
  late MethodChannel _channel;
  static MethodChannel _staticChannel = IN_APP_WEBVIEW_STATIC_CHANNEL;
  Map<String, JavaScriptHandlerCallback> javaScriptHandlersMap =
      HashMap<String, JavaScriptHandlerCallback>();
  List<UserScript> _userScripts = [];
  Set<String> _webMessageListenerObjNames = Set();
  Map<String, ScriptHtmlTagAttributes> _injectedScriptsFromURL = {};

  // ignore: unused_field
  dynamic _id;

  InAppBrowser? _inAppBrowser;

  ///Use [InAppWebViewController] instead.
  @Deprecated("Use InAppWebViewController instead")
  late AndroidInAppWebViewController android;

  ///Use [InAppWebViewController] instead.
  @Deprecated("Use InAppWebViewController instead")
  late IOSInAppWebViewController ios;

  ///Provides access to the JavaScript [Web Storage API](https://developer.mozilla.org/en-US/docs/Web/API/Web_Storage_API): `window.sessionStorage` and `window.localStorage`.
  late WebStorage webStorage;

  InAppWebViewController(dynamic id, WebView webview) {
    this._id = id;
    this._channel =
        MethodChannel('com.pichillilorenzo/flutter_inappwebview_$id');
    this._channel.setMethodCallHandler(handleMethod);
    this._webview = webview;
    this._userScripts =
        List<UserScript>.from(webview.initialUserScripts ?? <UserScript>[]);
    this._init();
  }

  InAppWebViewController.fromInAppBrowser(
      MethodChannel channel,
      InAppBrowser inAppBrowser,
      UnmodifiableListView<UserScript>? initialUserScripts) {
    this._channel = channel;
    this._inAppBrowser = inAppBrowser;
    this._userScripts =
        List<UserScript>.from(initialUserScripts ?? <UserScript>[]);
    this._init();
  }

  void _init() {
    // ignore: deprecated_member_use_from_same_package
    this.android = AndroidInAppWebViewController(channel: _channel);
    // ignore: deprecated_member_use_from_same_package
    this.ios = IOSInAppWebViewController(channel: _channel);
    this.webStorage = WebStorage(
        localStorage: LocalStorage(this), sessionStorage: SessionStorage(this));
  }

  Future<dynamic> handleMethod(MethodCall call) async {
    switch (call.method) {
      case "onLoadStart":
        _injectedScriptsFromURL.clear();
        if ((_webview != null && _webview!.onLoadStart != null) ||
            _inAppBrowser != null) {
          String? url = call.arguments["url"];
          Uri? uri = url != null ? Uri.parse(url) : null;
          if (_webview != null && _webview!.onLoadStart != null)
            _webview!.onLoadStart!(this, uri);
          else
            _inAppBrowser!.onLoadStart(uri);
        }
        break;
      case "onLoadStop":
        if ((_webview != null && _webview!.onLoadStop != null) ||
            _inAppBrowser != null) {
          String? url = call.arguments["url"];
          Uri? uri = url != null ? Uri.parse(url) : null;
          if (_webview != null && _webview!.onLoadStop != null)
            _webview!.onLoadStop!(this, uri);
          else
            _inAppBrowser!.onLoadStop(uri);
        }
        break;
      case "onLoadError":
        if ((_webview != null && _webview!.onLoadError != null) ||
            _inAppBrowser != null) {
          String? url = call.arguments["url"];
          int code = call.arguments["code"];
          String message = call.arguments["message"];
          Uri? uri = url != null ? Uri.parse(url) : null;
          if (_webview != null && _webview!.onLoadError != null)
            _webview!.onLoadError!(this, uri, code, message);
          else
            _inAppBrowser!.onLoadError(uri, code, message);
        }
        break;
      case "onLoadHttpError":
        if ((_webview != null && _webview!.onLoadHttpError != null) ||
            _inAppBrowser != null) {
          String? url = call.arguments["url"];
          int statusCode = call.arguments["statusCode"];
          String description = call.arguments["description"];
          Uri? uri = url != null ? Uri.parse(url) : null;
          if (_webview != null && _webview!.onLoadHttpError != null)
            _webview!.onLoadHttpError!(this, uri, statusCode, description);
          else
            _inAppBrowser!.onLoadHttpError(uri, statusCode, description);
        }
        break;
      case "onProgressChanged":
        if ((_webview != null && _webview!.onProgressChanged != null) ||
            _inAppBrowser != null) {
          int progress = call.arguments["progress"];
          if (_webview != null && _webview!.onProgressChanged != null)
            _webview!.onProgressChanged!(this, progress);
          else
            _inAppBrowser!.onProgressChanged(progress);
        }
        break;
      case "shouldOverrideUrlLoading":
        if ((_webview != null && _webview!.shouldOverrideUrlLoading != null) ||
            _inAppBrowser != null) {
          Map<String, dynamic> arguments =
              call.arguments.cast<String, dynamic>();
          NavigationAction navigationAction =
              NavigationAction.fromMap(arguments)!;

          if (_webview != null && _webview!.shouldOverrideUrlLoading != null)
            return (await _webview!.shouldOverrideUrlLoading!(
                    this, navigationAction))
                ?.toMap();
          return (await _inAppBrowser!
                  .shouldOverrideUrlLoading(navigationAction))
              ?.toMap();
        }
        break;
      case "onConsoleMessage":
        if ((_webview != null && _webview!.onConsoleMessage != null) ||
            _inAppBrowser != null) {
          Map<String, dynamic> arguments =
              call.arguments.cast<String, dynamic>();
          ConsoleMessage consoleMessage = ConsoleMessage.fromMap(arguments)!;
          if (_webview != null && _webview!.onConsoleMessage != null)
            _webview!.onConsoleMessage!(this, consoleMessage);
          else
            _inAppBrowser!.onConsoleMessage(consoleMessage);
        }
        break;
      case "onScrollChanged":
        if ((_webview != null && _webview!.onScrollChanged != null) ||
            _inAppBrowser != null) {
          int x = call.arguments["x"];
          int y = call.arguments["y"];
          if (_webview != null && _webview!.onScrollChanged != null)
            _webview!.onScrollChanged!(this, x, y);
          else
            _inAppBrowser!.onScrollChanged(x, y);
        }
        break;
      case "onDownloadStartRequest":
        if ((_webview != null &&
                // ignore: deprecated_member_use_from_same_package
                (_webview!.onDownloadStart != null ||
                    _webview!.onDownloadStartRequest != null)) ||
            _inAppBrowser != null) {
          Map<String, dynamic> arguments =
              call.arguments.cast<String, dynamic>();
          DownloadStartRequest downloadStartRequest =
              DownloadStartRequest.fromMap(arguments)!;

          if (_webview != null) {
            if (_webview!.onDownloadStartRequest != null)
              _webview!.onDownloadStartRequest!(this, downloadStartRequest);
            else {
              // ignore: deprecated_member_use_from_same_package
              _webview!.onDownloadStart!(this, downloadStartRequest.url);
            }
          } else {
            // ignore: deprecated_member_use_from_same_package
            _inAppBrowser!.onDownloadStart(downloadStartRequest.url);
            _inAppBrowser!.onDownloadStartRequest(downloadStartRequest);
          }
        }
        break;
      case "onLoadResourceCustomScheme":
        if ((_webview != null &&
                _webview!.onLoadResourceCustomScheme != null) ||
            _inAppBrowser != null) {
          String url = call.arguments["url"];
          Uri uri = Uri.parse(url);
          if (_webview != null && _webview!.onLoadResourceCustomScheme != null)
            return (await _webview!.onLoadResourceCustomScheme!(this, uri))
                ?.toMap();
          else
            return (await _inAppBrowser!.onLoadResourceCustomScheme(uri))
                ?.toMap();
        }
        break;
      case "onCreateWindow":
        if ((_webview != null && _webview!.onCreateWindow != null) ||
            _inAppBrowser != null) {
          Map<String, dynamic> arguments =
              call.arguments.cast<String, dynamic>();
          CreateWindowAction createWindowAction =
              CreateWindowAction.fromMap(arguments)!;

          if (_webview != null && _webview!.onCreateWindow != null)
            return await _webview!.onCreateWindow!(this, createWindowAction);
          else
            return await _inAppBrowser!.onCreateWindow(createWindowAction);
        }
        break;
      case "onCloseWindow":
        if (_webview != null && _webview!.onCloseWindow != null)
          _webview!.onCloseWindow!(this);
        else if (_inAppBrowser != null) _inAppBrowser!.onCloseWindow();
        break;
      case "onTitleChanged":
        if ((_webview != null && _webview!.onTitleChanged != null) ||
            _inAppBrowser != null) {
          String? title = call.arguments["title"];
          if (_webview != null && _webview!.onTitleChanged != null)
            _webview!.onTitleChanged!(this, title);
          else
            _inAppBrowser!.onTitleChanged(title);
        }
        break;
      case "onGeolocationPermissionsShowPrompt":
        if ((_webview != null &&
                (_webview!.onGeolocationPermissionsShowPrompt != null ||
                 // ignore: deprecated_member_use_from_same_package
                 _webview!.androidOnGeolocationPermissionsShowPrompt != null)) ||
            _inAppBrowser != null) {
          String origin = call.arguments["origin"];

          if (_webview != null) {
            if (_webview!.onGeolocationPermissionsShowPrompt != null)
              return (await _webview!.onGeolocationPermissionsShowPrompt!(this, origin))?.toMap();
            else {
              // ignore: deprecated_member_use_from_same_package
              return (await _webview!.androidOnGeolocationPermissionsShowPrompt!(this, origin))?.toMap();
            }
          } else {
            return ((await _inAppBrowser!.onGeolocationPermissionsShowPrompt(origin)) ??
                // ignore: deprecated_member_use_from_same_package
                (await _inAppBrowser!.androidOnGeolocationPermissionsShowPrompt(origin)))?.toMap();
          }
        }
        break;
      case "onGeolocationPermissionsHidePrompt":
        if (_webview != null &&
            (_webview!.onGeolocationPermissionsHidePrompt != null ||
                // ignore: deprecated_member_use_from_same_package
                _webview!.androidOnGeolocationPermissionsHidePrompt != null)) {
          if (_webview!.onGeolocationPermissionsHidePrompt != null)
            _webview!.onGeolocationPermissionsHidePrompt!(this);
          else {
            // ignore: deprecated_member_use_from_same_package
            _webview!.androidOnGeolocationPermissionsHidePrompt!(this);
          }
        }
        else if (_inAppBrowser != null) {
          _inAppBrowser!.onGeolocationPermissionsHidePrompt();
          // ignore: deprecated_member_use_from_same_package
          _inAppBrowser!.androidOnGeolocationPermissionsHidePrompt();
        }
        break;
      case "shouldInterceptRequest":
        if ((_webview != null &&
                (_webview!.shouldInterceptRequest != null ||
                  // ignore: deprecated_member_use_from_same_package
                  _webview!.androidShouldInterceptRequest != null)) ||
            _inAppBrowser != null) {
          Map<String, dynamic> arguments =
              call.arguments.cast<String, dynamic>();
          WebResourceRequest request = WebResourceRequest.fromMap(arguments)!;

          if (_webview != null) {
            if (_webview!.shouldInterceptRequest != null)
              return (await _webview!.shouldInterceptRequest!(this, request))?.toMap();
            else {
              // ignore: deprecated_member_use_from_same_package
              return (await _webview!.androidShouldInterceptRequest!(this, request))?.toMap();
            }
          } else {
            return ((await _inAppBrowser!.shouldInterceptRequest(request)) ??
                // ignore: deprecated_member_use_from_same_package
                (await _inAppBrowser!.androidShouldInterceptRequest(request)))?.toMap();
          }
        }
        break;
      case "onRenderProcessUnresponsive":
        if ((_webview != null &&
                (_webview!.onRenderProcessUnresponsive != null ||
                  // ignore: deprecated_member_use_from_same_package
                  _webview!.androidOnRenderProcessUnresponsive != null)) ||
            _inAppBrowser != null) {
          String? url = call.arguments["url"];
          Uri? uri = url != null ? Uri.parse(url) : null;

          if (_webview != null) {
            if (_webview!.onRenderProcessUnresponsive != null)
              return (await _webview!.onRenderProcessUnresponsive!(this, uri))?.toMap();
            else {
              // ignore: deprecated_member_use_from_same_package
              return (await _webview!.androidOnRenderProcessUnresponsive!(this, uri))?.toMap();
            }
          } else {
            return ((await _inAppBrowser!.onRenderProcessUnresponsive(uri)) ??
                // ignore: deprecated_member_use_from_same_package
                (await _inAppBrowser!.androidOnRenderProcessUnresponsive(uri)))?.toMap();
          }
        }
        break;
      case "onRenderProcessResponsive":
        if ((_webview != null &&
                (_webview!.onRenderProcessResponsive != null ||
                  // ignore: deprecated_member_use_from_same_package
                  _webview!.androidOnRenderProcessResponsive != null)) ||
            _inAppBrowser != null) {
          String? url = call.arguments["url"];
          Uri? uri = url != null ? Uri.parse(url) : null;

          if (_webview != null) {
            if (_webview!.onRenderProcessResponsive != null)
              return (await _webview!.onRenderProcessResponsive!(this, uri))?.toMap();
            else {
              // ignore: deprecated_member_use_from_same_package
              return (await _webview!.androidOnRenderProcessResponsive!(this, uri))?.toMap();
            }
          } else {
            return ((await _inAppBrowser!.onRenderProcessResponsive(uri)) ??
                // ignore: deprecated_member_use_from_same_package
                (await _inAppBrowser!.androidOnRenderProcessResponsive(uri)))?.toMap();
          }
        }
        break;
      case "onRenderProcessGone":
        if ((_webview != null &&
                (_webview!.onRenderProcessGone != null ||
                  // ignore: deprecated_member_use_from_same_package
                  _webview!.androidOnRenderProcessGone != null)) ||
            _inAppBrowser != null) {
          Map<String, dynamic> arguments =
              call.arguments.cast<String, dynamic>();
          RenderProcessGoneDetail detail =
              RenderProcessGoneDetail.fromMap(arguments)!;

          if (_webview != null) {
            if (_webview!.onRenderProcessGone != null)
              _webview!.onRenderProcessGone!(this, detail);
            else {
              // ignore: deprecated_member_use_from_same_package
              _webview!.androidOnRenderProcessGone!(this, detail);
            }
          }
          else if (_inAppBrowser != null) {
            _inAppBrowser!.onRenderProcessGone(detail);
            // ignore: deprecated_member_use_from_same_package
            _inAppBrowser!.androidOnRenderProcessGone(detail);
          }
        }
        break;
      case "onFormResubmission":
        if ((_webview != null &&
            (_webview!.onFormResubmission != null ||
            // ignore: deprecated_member_use_from_same_package
            _webview!.androidOnFormResubmission != null)) ||
            _inAppBrowser != null) {
          String? url = call.arguments["url"];
          Uri? uri = url != null ? Uri.parse(url) : null;

          if (_webview != null) {
            if (_webview!.onFormResubmission != null)
              return (await _webview!.onFormResubmission!(this, uri))?.toMap();
            else {
              // ignore: deprecated_member_use_from_same_package
              return (await _webview!.androidOnFormResubmission!(this, uri))?.toMap();
            }
          } else {
            return ((await _inAppBrowser!.onFormResubmission(uri)) ??
                // ignore: deprecated_member_use_from_same_package
                (await _inAppBrowser!.androidOnFormResubmission(uri)))?.toMap();
          }
        }
        break;
      case "onZoomScaleChanged":
        if ((_webview != null &&
                // ignore: deprecated_member_use_from_same_package
                (_webview!.androidOnScaleChanged != null ||
                    _webview!.onZoomScaleChanged != null)) ||
            _inAppBrowser != null) {
          double oldScale = call.arguments["oldScale"];
          double newScale = call.arguments["newScale"];

          if (_webview != null) {
            if (_webview!.onZoomScaleChanged != null)
              _webview!.onZoomScaleChanged!(this, oldScale, newScale);
            else {
              // ignore: deprecated_member_use_from_same_package
              _webview!.androidOnScaleChanged!(this, oldScale, newScale);
            }
          } else {
            _inAppBrowser!.onZoomScaleChanged(oldScale, newScale);
            // ignore: deprecated_member_use_from_same_package
            _inAppBrowser!.androidOnScaleChanged(oldScale, newScale);
          }
        }
        break;
      case "onReceivedIcon":
        if ((_webview != null && (
            _webview!.onReceivedIcon != null ||
            // ignore: deprecated_member_use_from_same_package
            _webview!.androidOnReceivedIcon != null)) ||
            _inAppBrowser != null) {
          Uint8List icon =
              Uint8List.fromList(call.arguments["icon"].cast<int>());

          if (_webview != null) {
            if (_webview!.onReceivedIcon != null)
              _webview!.onReceivedIcon!(this, icon);
            else {
              // ignore: deprecated_member_use_from_same_package
              _webview!.androidOnReceivedIcon!(this, icon);
            }
          } else {
            _inAppBrowser!.onReceivedIcon(icon);
            // ignore: deprecated_member_use_from_same_package
            _inAppBrowser!.androidOnReceivedIcon(icon);
          }
        }
        break;
      case "onReceivedTouchIconUrl":
        if ((_webview != null &&
                (_webview!.onReceivedTouchIconUrl != null ||
                  // ignore: deprecated_member_use_from_same_package
                  _webview!.androidOnReceivedTouchIconUrl != null)) ||
            _inAppBrowser != null) {
          String url = call.arguments["url"];
          bool precomposed = call.arguments["precomposed"];
          Uri uri = Uri.parse(url);

          if (_webview != null) {
            if (_webview!.onReceivedTouchIconUrl != null)
              _webview!.onReceivedTouchIconUrl!(this, uri, precomposed);
            else {
              // ignore: deprecated_member_use_from_same_package
              _webview!.androidOnReceivedTouchIconUrl!(this, uri, precomposed);
            }
          } else {
            _inAppBrowser!.onReceivedTouchIconUrl(uri, precomposed);
            // ignore: deprecated_member_use_from_same_package
            _inAppBrowser!.androidOnReceivedTouchIconUrl(uri, precomposed);
          }
        }
        break;
      case "onJsAlert":
        if ((_webview != null && _webview!.onJsAlert != null) ||
            _inAppBrowser != null) {
          Map<String, dynamic> arguments =
              call.arguments.cast<String, dynamic>();
          JsAlertRequest jsAlertRequest = JsAlertRequest.fromMap(arguments)!;

          if (_webview != null && _webview!.onJsAlert != null)
            return (await _webview!.onJsAlert!(this, jsAlertRequest))?.toMap();
          else
            return (await _inAppBrowser!.onJsAlert(jsAlertRequest))?.toMap();
        }
        break;
      case "onJsConfirm":
        if ((_webview != null && _webview!.onJsConfirm != null) ||
            _inAppBrowser != null) {
          Map<String, dynamic> arguments =
              call.arguments.cast<String, dynamic>();
          JsConfirmRequest jsConfirmRequest =
              JsConfirmRequest.fromMap(arguments)!;

          if (_webview != null && _webview!.onJsConfirm != null)
            return (await _webview!.onJsConfirm!(this, jsConfirmRequest))
                ?.toMap();
          else
            return (await _inAppBrowser!.onJsConfirm(jsConfirmRequest))
                ?.toMap();
        }
        break;
      case "onJsPrompt":
        if ((_webview != null && _webview!.onJsPrompt != null) ||
            _inAppBrowser != null) {
          Map<String, dynamic> arguments =
              call.arguments.cast<String, dynamic>();
          JsPromptRequest jsPromptRequest = JsPromptRequest.fromMap(arguments)!;

          if (_webview != null && _webview!.onJsPrompt != null)
            return (await _webview!.onJsPrompt!(this, jsPromptRequest))
                ?.toMap();
          else
            return (await _inAppBrowser!.onJsPrompt(jsPromptRequest))?.toMap();
        }
        break;
      case "onJsBeforeUnload":
        if ((_webview != null && (
            _webview!.onJsBeforeUnload != null ||
            // ignore: deprecated_member_use_from_same_package
            _webview!.androidOnJsBeforeUnload != null)) ||
            _inAppBrowser != null) {
          Map<String, dynamic> arguments =
              call.arguments.cast<String, dynamic>();
          JsBeforeUnloadRequest jsBeforeUnloadRequest =
              JsBeforeUnloadRequest.fromMap(arguments)!;

          if (_webview != null) {
            if (_webview!.onJsBeforeUnload != null)
              return (await _webview!.onJsBeforeUnload!(this, jsBeforeUnloadRequest))?.toMap();
            else {
              // ignore: deprecated_member_use_from_same_package
              return (await _webview!.androidOnJsBeforeUnload!(this, jsBeforeUnloadRequest))?.toMap();
            }
          } else {
            return ((await _inAppBrowser!.onJsBeforeUnload(jsBeforeUnloadRequest)) ??
                // ignore: deprecated_member_use_from_same_package
                (await _inAppBrowser!.androidOnJsBeforeUnload(jsBeforeUnloadRequest)))?.toMap();
          }
        }
        break;
      case "onSafeBrowsingHit":
        if ((_webview != null && (
            _webview!.onSafeBrowsingHit != null ||
            // ignore: deprecated_member_use_from_same_package
            _webview!.androidOnSafeBrowsingHit != null)) ||
            _inAppBrowser != null) {
          String url = call.arguments["url"];
          SafeBrowsingThreat? threatType =
              SafeBrowsingThreat.fromValue(call.arguments["threatType"]);
          Uri uri = Uri.parse(url);

          if (_webview != null) {
            if (_webview!.onSafeBrowsingHit != null)
              return (await _webview!.onSafeBrowsingHit!(this, uri, threatType))?.toMap();
            else {
              // ignore: deprecated_member_use_from_same_package
              return (await _webview!.androidOnSafeBrowsingHit!(this, uri, threatType))?.toMap();
            }
          } else {
            return ((await _inAppBrowser!.onSafeBrowsingHit(uri, threatType)) ??
                // ignore: deprecated_member_use_from_same_package
                (await _inAppBrowser!.androidOnSafeBrowsingHit(uri, threatType)))?.toMap();
          }
        }
        break;
      case "onReceivedLoginRequest":
        if ((_webview != null &&
                (_webview!.onReceivedLoginRequest != null ||
                  // ignore: deprecated_member_use_from_same_package
                  _webview!.androidOnReceivedLoginRequest != null)) ||
            _inAppBrowser != null) {
          Map<String, dynamic> arguments =
              call.arguments.cast<String, dynamic>();
          LoginRequest loginRequest = LoginRequest.fromMap(arguments)!;

          if (_webview != null) {
            if (_webview!.onReceivedLoginRequest != null)
              _webview!.onReceivedLoginRequest!(this, loginRequest);
            else {
              // ignore: deprecated_member_use_from_same_package
              _webview!.androidOnReceivedLoginRequest!(this, loginRequest);
            }
          } else {
            _inAppBrowser!.onReceivedLoginRequest(loginRequest);
            // ignore: deprecated_member_use_from_same_package
            _inAppBrowser!.androidOnReceivedLoginRequest(loginRequest);
          }
        }
        break;
      case "onReceivedHttpAuthRequest":
        if ((_webview != null && _webview!.onReceivedHttpAuthRequest != null) ||
            _inAppBrowser != null) {
          Map<String, dynamic> arguments =
              call.arguments.cast<String, dynamic>();
          HttpAuthenticationChallenge challenge =
              HttpAuthenticationChallenge.fromMap(arguments)!;

          if (_webview != null && _webview!.onReceivedHttpAuthRequest != null)
            return (await _webview!.onReceivedHttpAuthRequest!(this, challenge))
                ?.toMap();
          else
            return (await _inAppBrowser!.onReceivedHttpAuthRequest(challenge))
                ?.toMap();
        }
        break;
      case "onReceivedServerTrustAuthRequest":
        if ((_webview != null &&
                _webview!.onReceivedServerTrustAuthRequest != null) ||
            _inAppBrowser != null) {
          Map<String, dynamic> arguments =
              call.arguments.cast<String, dynamic>();
          ServerTrustChallenge challenge =
              ServerTrustChallenge.fromMap(arguments)!;

          if (_webview != null &&
              _webview!.onReceivedServerTrustAuthRequest != null)
            return (await _webview!.onReceivedServerTrustAuthRequest!(
                    this, challenge))
                ?.toMap();
          else
            return (await _inAppBrowser!
                    .onReceivedServerTrustAuthRequest(challenge))
                ?.toMap();
        }
        break;
      case "onReceivedClientCertRequest":
        if ((_webview != null &&
                _webview!.onReceivedClientCertRequest != null) ||
            _inAppBrowser != null) {
          Map<String, dynamic> arguments =
              call.arguments.cast<String, dynamic>();
          ClientCertChallenge challenge =
              ClientCertChallenge.fromMap(arguments)!;

          if (_webview != null && _webview!.onReceivedClientCertRequest != null)
            return (await _webview!.onReceivedClientCertRequest!(
                    this, challenge))
                ?.toMap();
          else
            return (await _inAppBrowser!.onReceivedClientCertRequest(challenge))
                ?.toMap();
        }
        break;
      case "onFindResultReceived":
        if ((_webview != null && _webview!.onFindResultReceived != null) ||
            _inAppBrowser != null) {
          int activeMatchOrdinal = call.arguments["activeMatchOrdinal"];
          int numberOfMatches = call.arguments["numberOfMatches"];
          bool isDoneCounting = call.arguments["isDoneCounting"];
          if (_webview != null && _webview!.onFindResultReceived != null)
            _webview!.onFindResultReceived!(
                this, activeMatchOrdinal, numberOfMatches, isDoneCounting);
          else
            _inAppBrowser!.onFindResultReceived(
                activeMatchOrdinal, numberOfMatches, isDoneCounting);
        }
        break;
      case "onPermissionRequest":
        if ((_webview != null &&
                (_webview!.onPermissionRequest != null ||
                  // ignore: deprecated_member_use_from_same_package
                  _webview!.androidOnPermissionRequest != null)) ||
            _inAppBrowser != null) {
          String origin = call.arguments["origin"];
          List<String> resources = call.arguments["resources"].cast<String>();

          if (_webview != null) {
            if (_webview!.onPermissionRequest != null)
              return (await _webview!.onPermissionRequest!(this, origin, resources))?.toMap();
            else {
              // ignore: deprecated_member_use_from_same_package
              return (await _webview!.androidOnPermissionRequest!(this, origin, resources))?.toMap();
            }
          } else {
            return ((await _inAppBrowser!.onPermissionRequest(origin, resources)) ??
                // ignore: deprecated_member_use_from_same_package
                (await _inAppBrowser!.androidOnPermissionRequest(origin, resources)))?.toMap();
          }
        }
        break;
      case "onUpdateVisitedHistory":
        if ((_webview != null && _webview!.onUpdateVisitedHistory != null) ||
            _inAppBrowser != null) {
          String? url = call.arguments["url"];
          bool? isReload = call.arguments["isReload"];
          Uri? uri = url != null ? Uri.parse(url) : null;
          if (_webview != null && _webview!.onUpdateVisitedHistory != null)
            _webview!.onUpdateVisitedHistory!(this, uri, isReload);
          else
            _inAppBrowser!.onUpdateVisitedHistory(uri, isReload);
        }
        break;
      case "onWebContentProcessDidTerminate":
        if (_webview != null &&
            (_webview!.onWebContentProcessDidTerminate != null ||
              // ignore: deprecated_member_use_from_same_package
              _webview!.iosOnWebContentProcessDidTerminate != null)) {
          if (_webview!.onWebContentProcessDidTerminate != null)
            _webview!.onWebContentProcessDidTerminate!(this);
          else {
            // ignore: deprecated_member_use_from_same_package
            _webview!.iosOnWebContentProcessDidTerminate!(this);
          }
        } else if (_inAppBrowser != null) {
          _inAppBrowser!.onWebContentProcessDidTerminate();
          // ignore: deprecated_member_use_from_same_package
          _inAppBrowser!.iosOnWebContentProcessDidTerminate();
        }
        break;
      case "onPageCommitVisible":
        if ((_webview != null && _webview!.onPageCommitVisible != null) ||
            _inAppBrowser != null) {
          String? url = call.arguments["url"];
          Uri? uri = url != null ? Uri.parse(url) : null;
          if (_webview != null && _webview!.onPageCommitVisible != null)
            _webview!.onPageCommitVisible!(this, uri);
          else
            _inAppBrowser!.onPageCommitVisible(uri);
        }
        break;
      case "onDidReceiveServerRedirectForProvisionalNavigation":
        if (_webview != null &&
            (_webview!.onDidReceiveServerRedirectForProvisionalNavigation != null ||
                // ignore: deprecated_member_use_from_same_package
                _webview!.iosOnDidReceiveServerRedirectForProvisionalNavigation != null)) {
          if (_webview!.onDidReceiveServerRedirectForProvisionalNavigation != null)
            _webview!.onDidReceiveServerRedirectForProvisionalNavigation!(this);
          else {
            // ignore: deprecated_member_use_from_same_package
            _webview!.iosOnDidReceiveServerRedirectForProvisionalNavigation!(this);
          }
        } else if (_inAppBrowser != null) {
          _inAppBrowser!.onDidReceiveServerRedirectForProvisionalNavigation();
          // ignore: deprecated_member_use_from_same_package
          _inAppBrowser!.iosOnDidReceiveServerRedirectForProvisionalNavigation();
        }
        break;
      case "onNavigationResponse":
        if ((_webview != null && (
            _webview!.onNavigationResponse != null ||
              // ignore: deprecated_member_use_from_same_package
              _webview!.iosOnNavigationResponse != null)) ||
            _inAppBrowser != null) {
          Map<String, dynamic> arguments =
              call.arguments.cast<String, dynamic>();
          // ignore: deprecated_member_use_from_same_package
          IOSWKNavigationResponse iosOnNavigationResponse =
          // ignore: deprecated_member_use_from_same_package
              IOSWKNavigationResponse.fromMap(arguments)!;

          NavigationResponse navigationResponse = NavigationResponse.fromMap(arguments)!;

          if (_webview != null) {
            if (_webview!.onNavigationResponse != null)
              return (await _webview!.onNavigationResponse!(this, navigationResponse))?.toMap();
            else {
              // ignore: deprecated_member_use_from_same_package
              return (await _webview!.iosOnNavigationResponse!(this, iosOnNavigationResponse))?.toMap();
            }
          } else {
            return (await _inAppBrowser!.onNavigationResponse(navigationResponse))?.toMap() ??
                // ignore: deprecated_member_use_from_same_package
                (await _inAppBrowser!.iosOnNavigationResponse(iosOnNavigationResponse))?.toMap();
          }
        }
        break;
      case "shouldAllowDeprecatedTLS":
        if ((_webview != null &&
                (_webview!.shouldAllowDeprecatedTLS != null ||
                  // ignore: deprecated_member_use_from_same_package
                  _webview!.iosShouldAllowDeprecatedTLS != null)) ||
            _inAppBrowser != null) {
          Map<String, dynamic> arguments =
              call.arguments.cast<String, dynamic>();
          URLAuthenticationChallenge challenge =
              URLAuthenticationChallenge.fromMap(arguments)!;

          if (_webview != null) {
            if (_webview!.shouldAllowDeprecatedTLS != null)
              return (await _webview!.shouldAllowDeprecatedTLS!(this, challenge))?.toMap();
            else {
              // ignore: deprecated_member_use_from_same_package
              return (await _webview!.iosShouldAllowDeprecatedTLS!(this, challenge))?.toMap();
            }
          } else {
            return (await _inAppBrowser!.shouldAllowDeprecatedTLS(challenge))?.toMap() ??
                // ignore: deprecated_member_use_from_same_package
                (await _inAppBrowser!.iosShouldAllowDeprecatedTLS(challenge))?.toMap();
          }
        }
        break;
      case "onLongPressHitTestResult":
        if ((_webview != null && _webview!.onLongPressHitTestResult != null) ||
            _inAppBrowser != null) {
          Map<String, dynamic> arguments =
              call.arguments.cast<String, dynamic>();
          InAppWebViewHitTestResult hitTestResult =
              InAppWebViewHitTestResult.fromMap(arguments)!;

          if (_webview != null && _webview!.onLongPressHitTestResult != null)
            _webview!.onLongPressHitTestResult!(this, hitTestResult);
          else
            _inAppBrowser!.onLongPressHitTestResult(hitTestResult);
        }
        break;
      case "onCreateContextMenu":
        ContextMenu? contextMenu;
        if (_webview != null && _webview!.contextMenu != null) {
          contextMenu = _webview!.contextMenu;
        } else if (_inAppBrowser != null &&
            _inAppBrowser!.contextMenu != null) {
          contextMenu = _inAppBrowser!.contextMenu;
        }

        if (contextMenu != null && contextMenu.onCreateContextMenu != null) {
          Map<String, dynamic> arguments =
              call.arguments.cast<String, dynamic>();
          InAppWebViewHitTestResult hitTestResult =
              InAppWebViewHitTestResult.fromMap(arguments)!;

          contextMenu.onCreateContextMenu!(hitTestResult);
        }
        break;
      case "onHideContextMenu":
        ContextMenu? contextMenu;
        if (_webview != null && _webview!.contextMenu != null) {
          contextMenu = _webview!.contextMenu;
        } else if (_inAppBrowser != null &&
            _inAppBrowser!.contextMenu != null) {
          contextMenu = _inAppBrowser!.contextMenu;
        }

        if (contextMenu != null && contextMenu.onHideContextMenu != null) {
          contextMenu.onHideContextMenu!();
        }
        break;
      case "onContextMenuActionItemClicked":
        ContextMenu? contextMenu;
        if (_webview != null && _webview!.contextMenu != null) {
          contextMenu = _webview!.contextMenu;
        } else if (_inAppBrowser != null &&
            _inAppBrowser!.contextMenu != null) {
          contextMenu = _inAppBrowser!.contextMenu;
        }

        if (contextMenu != null) {
          int? androidId = call.arguments["androidId"];
          String? iosId = call.arguments["iosId"];
          String title = call.arguments["title"];

          ContextMenuItem menuItemClicked = ContextMenuItem(
              androidId: androidId, iosId: iosId, title: title, action: null);

          for (var menuItem in contextMenu.menuItems) {
            if ((defaultTargetPlatform == TargetPlatform.android &&
                    menuItem.androidId == androidId) ||
                (defaultTargetPlatform == TargetPlatform.iOS &&
                    menuItem.iosId == iosId)) {
              menuItemClicked = menuItem;
              if (menuItem.action != null) {
                menuItem.action!();
              }
              break;
            }
          }

          if (contextMenu.onContextMenuActionItemClicked != null) {
            contextMenu.onContextMenuActionItemClicked!(menuItemClicked);
          }
        }
        break;
      case "onEnterFullscreen":
        if (_webview != null && _webview!.onEnterFullscreen != null)
          _webview!.onEnterFullscreen!(this);
        else if (_inAppBrowser != null) _inAppBrowser!.onEnterFullscreen();
        break;
      case "onExitFullscreen":
        if (_webview != null && _webview!.onExitFullscreen != null)
          _webview!.onExitFullscreen!(this);
        else if (_inAppBrowser != null) _inAppBrowser!.onExitFullscreen();
        break;
      case "onOverScrolled":
        if ((_webview != null && _webview!.onOverScrolled != null) ||
            _inAppBrowser != null) {
          int x = call.arguments["x"];
          int y = call.arguments["y"];
          bool clampedX = call.arguments["clampedX"];
          bool clampedY = call.arguments["clampedY"];

          if (_webview != null && _webview!.onOverScrolled != null)
            _webview!.onOverScrolled!(this, x, y, clampedX, clampedY);
          else
            _inAppBrowser!.onOverScrolled(x, y, clampedX, clampedY);
        }
        break;
      case "onCallJsHandler":
        String handlerName = call.arguments["handlerName"];
        // decode args to json
        List<dynamic> args = jsonDecode(call.arguments["args"]);

        switch (handlerName) {
          case "onLoadResource":
            if ((_webview != null && _webview!.onLoadResource != null) ||
                _inAppBrowser != null) {
              Map<String, dynamic> arguments = args[0].cast<String, dynamic>();
              arguments["startTime"] = arguments["startTime"] is int
                  ? arguments["startTime"].toDouble()
                  : arguments["startTime"];
              arguments["duration"] = arguments["duration"] is int
                  ? arguments["duration"].toDouble()
                  : arguments["duration"];

              var response = LoadedResource.fromMap(arguments)!;

              if (_webview != null && _webview!.onLoadResource != null)
                _webview!.onLoadResource!(this, response);
              else
                _inAppBrowser!.onLoadResource(response);
            }
            return null;
          case "shouldInterceptAjaxRequest":
            if ((_webview != null &&
                    _webview!.shouldInterceptAjaxRequest != null) ||
                _inAppBrowser != null) {
              Map<String, dynamic> arguments = args[0].cast<String, dynamic>();
              AjaxRequest request = AjaxRequest.fromMap(arguments)!;

              if (_webview != null &&
                  _webview!.shouldInterceptAjaxRequest != null)
                return jsonEncode(
                    await _webview!.shouldInterceptAjaxRequest!(this, request));
              else
                return jsonEncode(
                    await _inAppBrowser!.shouldInterceptAjaxRequest(request));
            }
            return null;
          case "onAjaxReadyStateChange":
            if ((_webview != null &&
                    _webview!.onAjaxReadyStateChange != null) ||
                _inAppBrowser != null) {
              Map<String, dynamic> arguments = args[0].cast<String, dynamic>();
              AjaxRequest request = AjaxRequest.fromMap(arguments)!;

              if (_webview != null && _webview!.onAjaxReadyStateChange != null)
                return jsonEncode(
                    await _webview!.onAjaxReadyStateChange!(this, request));
              else
                return jsonEncode(
                    await _inAppBrowser!.onAjaxReadyStateChange(request));
            }
            return null;
          case "onAjaxProgress":
            if ((_webview != null && _webview!.onAjaxProgress != null) ||
                _inAppBrowser != null) {
              Map<String, dynamic> arguments = args[0].cast<String, dynamic>();
              AjaxRequest request = AjaxRequest.fromMap(arguments)!;

              if (_webview != null && _webview!.onAjaxProgress != null)
                return jsonEncode(
                    await _webview!.onAjaxProgress!(this, request));
              else
                return jsonEncode(await _inAppBrowser!.onAjaxProgress(request));
            }
            return null;
          case "shouldInterceptFetchRequest":
            if ((_webview != null &&
                    _webview!.shouldInterceptFetchRequest != null) ||
                _inAppBrowser != null) {
              Map<String, dynamic> arguments = args[0].cast<String, dynamic>();
              FetchRequest request = FetchRequest.fromMap(arguments)!;

              if (_webview != null &&
                  _webview!.shouldInterceptFetchRequest != null)
                return jsonEncode(await _webview!.shouldInterceptFetchRequest!(
                    this, request));
              else
                return jsonEncode(
                    await _inAppBrowser!.shouldInterceptFetchRequest(request));
            }
            return null;
          case "onPrint":
            if ((_webview != null && _webview!.onPrint != null) ||
                _inAppBrowser != null) {
              String? url = args[0];
              Uri? uri = url != null ? Uri.parse(url) : null;
              if (_webview != null && _webview!.onPrint != null)
                _webview!.onPrint!(this, uri);
              else
                _inAppBrowser!.onPrint(uri);
            }
            return null;
          case "onWindowFocus":
            if (_webview != null && _webview!.onWindowFocus != null)
              _webview!.onWindowFocus!(this);
            else if (_inAppBrowser != null) _inAppBrowser!.onWindowFocus();
            return null;
          case "onWindowBlur":
            if (_webview != null && _webview!.onWindowBlur != null)
              _webview!.onWindowBlur!(this);
            else if (_inAppBrowser != null) _inAppBrowser!.onWindowBlur();
            return null;
          case "onInjectedScriptLoaded":
            String id = args[0];
            var onLoadCallback = _injectedScriptsFromURL[id]?.onLoad;
            if ((_webview != null || _inAppBrowser != null) &&
                onLoadCallback != null) {
              onLoadCallback();
            }
            return null;
          case "onInjectedScriptError":
            String id = args[0];
            var onErrorCallback = _injectedScriptsFromURL[id]?.onError;
            if ((_webview != null || _inAppBrowser != null) &&
                onErrorCallback != null) {
              onErrorCallback();
            }
            return null;
        }

        if (javaScriptHandlersMap.containsKey(handlerName)) {
          // convert result to json
          try {
            return jsonEncode(await javaScriptHandlersMap[handlerName]!(args));
          } catch (error) {
            print(error);
            return null;
          }
        }
        break;
      default:
        throw UnimplementedError("Unimplemented ${call.method} method");
    }
    return null;
  }

  ///Gets the URL for the current page.
  ///This is not always the same as the URL passed to [WebView.onLoadStart] because although the load for that URL has begun, the current page may not have changed.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebView.getUrl](https://developer.android.com/reference/android/webkit/WebView#getUrl()))
  ///- iOS ([Official API - WKWebView.url](https://developer.apple.com/documentation/webkit/wkwebview/1415005-url))
  Future<Uri?> getUrl() async {
    Map<String, dynamic> args = <String, dynamic>{};
    String? url = await _channel.invokeMethod('getUrl', args);
    return url != null ? Uri.parse(url) : null;
  }

  ///Gets the title for the current page.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebView.getTitle](https://developer.android.com/reference/android/webkit/WebView#getTitle()))
  ///- iOS ([Official API - WKWebView.title](https://developer.apple.com/documentation/webkit/wkwebview/1415015-title))
  Future<String?> getTitle() async {
    Map<String, dynamic> args = <String, dynamic>{};
    return await _channel.invokeMethod('getTitle', args);
  }

  ///Gets the progress for the current page. The progress value is between 0 and 100.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebView.getProgress](https://developer.android.com/reference/android/webkit/WebView#getProgress()))
  ///- iOS ([Official API - WKWebView.estimatedProgress](https://developer.apple.com/documentation/webkit/wkwebview/1415007-estimatedprogress))
  Future<int?> getProgress() async {
    Map<String, dynamic> args = <String, dynamic>{};
    return await _channel.invokeMethod('getProgress', args);
  }

  ///Gets the content html of the page. It first tries to get the content through javascript.
  ///If this doesn't work, it tries to get the content reading the file:
  ///- checking if it is an asset (`file:///`) or
  ///- downloading it using an `HttpClient` through the WebView's current url.
  ///
  ///Returns `null` if it was unable to get it.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView
  ///- iOS
  Future<String?> getHtml() async {
    String? html;

    InAppWebViewSettings? settings = await getSettings();
    if (settings != null && settings.javaScriptEnabled == true) {
      html = await evaluateJavascript(
          source: "window.document.getElementsByTagName('html')[0].outerHTML;");
      if (html != null && html.isNotEmpty) return html;
    }

    var webviewUrl = await getUrl();
    if (webviewUrl == null) {
      return html;
    }

    if (webviewUrl.isScheme("file")) {
      var assetPathSplitted = webviewUrl.toString().split("/flutter_assets/");
      var assetPath = assetPathSplitted[assetPathSplitted.length - 1];
      try {
        var bytes = await rootBundle.load(assetPath);
        html = utf8.decode(bytes.buffer.asUint8List());
      } catch (e) {}
    } else {
      HttpClient client = new HttpClient();
      try {
        var htmlRequest = await client.getUrl(webviewUrl);
        html =
            await (await htmlRequest.close()).transform(Utf8Decoder()).join();
      } catch (e) {
        print(e);
      }
    }

    return html;
  }

  ///Gets the list of all favicons for the current page.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView
  ///- iOS
  Future<List<Favicon>> getFavicons() async {
    List<Favicon> favicons = [];

    HttpClient client = new HttpClient();
    var webviewUrl = await getUrl();

    if (webviewUrl == null) {
      return favicons;
    }

    String? manifestUrl;

    var html = await getHtml();
    if (html == null || html.isEmpty) {
      return favicons;
    }
    var assetPathBase;

    if (webviewUrl.isScheme("file")) {
      var assetPathSplitted = webviewUrl.toString().split("/flutter_assets/");
      assetPathBase = assetPathSplitted[0] + "/flutter_assets/";
    }

    InAppWebViewSettings? settings = await getSettings();
    if (settings != null && settings.javaScriptEnabled == true) {
      List<Map<dynamic, dynamic>> links = (await evaluateJavascript(source: """
(function() {
  var linkNodes = document.head.getElementsByTagName("link");
  var links = [];
  for (var i = 0; i < linkNodes.length; i++) {
    var linkNode = linkNodes[i];
    if (linkNode.rel === 'manifest') {
      links.push(
        {
          rel: linkNode.rel,
          href: linkNode.href,
          sizes: null
        }
      );
    } else if (linkNode.rel != null && linkNode.rel.indexOf('icon') >= 0) {
      links.push(
        {
          rel: linkNode.rel,
          href: linkNode.href,
          sizes: linkNode.sizes != null && linkNode.sizes.value != "" ? linkNode.sizes.value : null
        }
      );
    }
  }
  return links;
})();
"""))?.cast<Map<dynamic, dynamic>>() ?? [];
      for (var link in links) {
        if (link["rel"] == "manifest") {
          manifestUrl = link["href"];
          if (!_isUrlAbsolute(manifestUrl!)) {
            if (manifestUrl.startsWith("/")) {
              manifestUrl = manifestUrl.substring(1);
            }
            manifestUrl = ((assetPathBase == null)
                    ? webviewUrl.scheme + "://" + webviewUrl.host + "/"
                    : assetPathBase) +
                manifestUrl;
          }
          continue;
        }
        favicons.addAll(_createFavicons(webviewUrl, assetPathBase, link["href"],
            link["rel"], link["sizes"], false));
      }
    }

    // try to get /favicon.ico
    try {
      var faviconUrl =
          webviewUrl.scheme + "://" + webviewUrl.host + "/favicon.ico";
      var faviconUri = Uri.parse(faviconUrl);
      var headRequest = await client.headUrl(faviconUri);
      var headResponse = await headRequest.close();
      if (headResponse.statusCode == 200) {
        favicons.add(Favicon(url: faviconUri, rel: "shortcut icon"));
      }
    } catch (e) {
      print("/favicon.ico file not found: " + e.toString());
      // print(stacktrace);
    }

    // try to get the manifest file
    HttpClientRequest? manifestRequest;
    HttpClientResponse? manifestResponse;
    bool manifestFound = false;
    if (manifestUrl == null) {
      manifestUrl =
          webviewUrl.scheme + "://" + webviewUrl.host + "/manifest.json";
    }
    try {
      manifestRequest = await client.getUrl(Uri.parse(manifestUrl));
      manifestResponse = await manifestRequest.close();
      manifestFound = manifestResponse.statusCode == 200 &&
          manifestResponse.headers.contentType?.mimeType == "application/json";
    } catch (e) {
      print("Manifest file not found: " + e.toString());
      // print(stacktrace);
    }

    if (manifestFound) {
      Map<String, dynamic> manifest =
          json.decode(await manifestResponse!.transform(Utf8Decoder()).join());
      if (manifest.containsKey("icons")) {
        for (Map<String, dynamic> icon in manifest["icons"]) {
          favicons.addAll(_createFavicons(webviewUrl, assetPathBase,
              icon["src"], icon["rel"], icon["sizes"], true));
        }
      }
    }

    return favicons;
  }

  bool _isUrlAbsolute(String url) {
    return url.startsWith("http://") || url.startsWith("https://");
  }

  List<Favicon> _createFavicons(Uri url, String? assetPathBase, String urlIcon,
      String? rel, String? sizes, bool isManifest) {
    List<Favicon> favicons = [];

    List<String> urlSplitted = urlIcon.split("/");
    if (!_isUrlAbsolute(urlIcon)) {
      if (urlIcon.startsWith("/")) {
        urlIcon = urlIcon.substring(1);
      }
      urlIcon = ((assetPathBase == null)
              ? url.scheme + "://" + url.host + "/"
              : assetPathBase) +
          urlIcon;
    }
    if (isManifest) {
      rel = (sizes != null)
          ? urlSplitted[urlSplitted.length - 1]
              .replaceFirst("-" + sizes, "")
              .split(" ")[0]
              .split(".")[0]
          : null;
    }
    if (sizes != null && sizes.isNotEmpty && sizes != "any") {
      List<String> sizesSplitted = sizes.split(" ");
      for (String size in sizesSplitted) {
        int width = int.parse(size.split("x")[0]);
        int height = int.parse(size.split("x")[1]);
        favicons.add(Favicon(
            url: Uri.parse(urlIcon), rel: rel, width: width, height: height));
      }
    } else {
      favicons.add(Favicon(
          url: Uri.parse(urlIcon), rel: rel, width: null, height: null));
    }

    return favicons;
  }

  ///Loads the given [urlRequest].
  ///
  ///- [allowingReadAccessTo], used in combination with [urlRequest] (using the `file://` scheme),
  ///it represents the URL from which to read the web content.
  ///This URL must be a file-based URL (using the `file://` scheme).
  ///Specify the same value as the URL parameter to prevent WebView from reading any other content.
  ///Specify a directory to give WebView permission to read additional files in the specified directory.
  ///**NOTE**: available only on iOS.
  ///
  ///**NOTE for Android**: when loading an URL Request using "POST" method, headers are ignored.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebView.loadUrl](https://developer.android.com/reference/android/webkit/WebView#loadUrl(java.lang.String))). If method is "POST", [Official API - WebView.postUrl](https://developer.android.com/reference/android/webkit/WebView#postUrl(java.lang.String,%20byte[]))
  ///- iOS ([Official API - WKWebView.load](https://developer.apple.com/documentation/webkit/wkwebview/1414954-load). If [allowingReadAccessTo] is used, [Official API - WKWebView.loadFileURL](https://developer.apple.com/documentation/webkit/wkwebview/1414973-loadfileurl))
  Future<void> loadUrl(
      {required URLRequest urlRequest,
      @Deprecated('Use allowingReadAccessTo instead')
          Uri? iosAllowingReadAccessTo,
      Uri? allowingReadAccessTo}) async {
    assert(urlRequest.url != null && urlRequest.url.toString().isNotEmpty);
    assert(iosAllowingReadAccessTo == null ||
        iosAllowingReadAccessTo.isScheme("file"));

    Map<String, dynamic> args = <String, dynamic>{};
    args.putIfAbsent('urlRequest', () => urlRequest.toMap());
    args.putIfAbsent(
        'allowingReadAccessTo',
        () =>
            allowingReadAccessTo?.toString() ??
            iosAllowingReadAccessTo?.toString());
    await _channel.invokeMethod('loadUrl', args);
  }

  ///Loads the given [url] with [postData] (x-www-form-urlencoded) using `POST` method into this WebView.
  ///
  ///Example
  ///```dart
  ///var postData = Uint8List.fromList(utf8.encode("firstname=Foo&surname=Bar"));
  ///controller.postUrl(url: Uri.parse("https://www.example.com/"), postData: postData);
  ///```
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebView.postUrl](https://developer.android.com/reference/android/webkit/WebView#postUrl(java.lang.String,%20byte[])))
  ///- iOS
  Future<void> postUrl({required Uri url, required Uint8List postData}) async {
    assert(url.toString().isNotEmpty);
    Map<String, dynamic> args = <String, dynamic>{};
    args.putIfAbsent('url', () => url.toString());
    args.putIfAbsent('postData', () => postData);
    await _channel.invokeMethod('postUrl', args);
  }

  ///Loads the given [data] into this WebView, using [baseUrl] as the base URL for the content.
  ///
  ///- [mimeType] argument specifies the format of the data. The default value is `"text/html"`.
  ///- [encoding] argument specifies the encoding of the data. The default value is `"utf8"`.
  ///- [historyUrl] is an Android-specific argument that represents the URL to use as the history entry. The default value is `about:blank`. If non-null, this must be a valid URL.
  ///- [allowingReadAccessTo], used in combination with [baseUrl] (using the `file://` scheme),
  ///it represents the URL from which to read the web content.
  ///This [baseUrl] must be a file-based URL (using the `file://` scheme).
  ///Specify the same value as the [baseUrl] parameter to prevent WebView from reading any other content.
  ///Specify a directory to give WebView permission to read additional files in the specified directory.
  ///**NOTE**: available only on iOS.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebView.loadDataWithBaseURL](https://developer.android.com/reference/android/webkit/WebView#loadDataWithBaseURL(java.lang.String,%20java.lang.String,%20java.lang.String,%20java.lang.String,%20java.lang.String)))
  ///- iOS ([Official API - WKWebView.loadHTMLString](https://developer.apple.com/documentation/webkit/wkwebview/1415004-loadhtmlstring) or [Official API - WKWebView.load](https://developer.apple.com/documentation/webkit/wkwebview/1415011-load))
  Future<void> loadData(
      {required String data,
      String mimeType = "text/html",
      String encoding = "utf8",
      Uri? baseUrl,
      @Deprecated('Use historyUrl instead')
          Uri? androidHistoryUrl,
      Uri? historyUrl,
      @Deprecated('Use allowingReadAccessTo instead')
          Uri? iosAllowingReadAccessTo,
      Uri? allowingReadAccessTo}) async {
    assert(iosAllowingReadAccessTo == null ||
        iosAllowingReadAccessTo.isScheme("file"));

    Map<String, dynamic> args = <String, dynamic>{};
    args.putIfAbsent('data', () => data);
    args.putIfAbsent('mimeType', () => mimeType);
    args.putIfAbsent('encoding', () => encoding);
    args.putIfAbsent('baseUrl', () => baseUrl?.toString() ?? "about:blank");
    args.putIfAbsent(
        'historyUrl',
        () =>
            historyUrl?.toString() ??
            androidHistoryUrl?.toString() ??
            "about:blank");
    args.putIfAbsent(
        'allowingReadAccessTo',
        () =>
            allowingReadAccessTo?.toString() ??
            iosAllowingReadAccessTo?.toString());
    await _channel.invokeMethod('loadData', args);
  }

  ///Loads the given [assetFilePath].
  ///
  ///To be able to load your local files (assets, js, css, etc.), you need to add them in the `assets` section of the `pubspec.yaml` file, otherwise they cannot be found!
  ///
  ///Example of a `pubspec.yaml` file:
  ///```yaml
  ///...
  ///
  ///# 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
  ///
  ///  assets:
  ///    - assets/index.html
  ///    - assets/css/
  ///    - assets/images/
  ///
  ///...
  ///```
  ///Example:
  ///```dart
  ///...
  ///controller.loadFile(assetFilePath: "assets/index.html");
  ///...
  ///```
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebView.loadUrl](https://developer.android.com/reference/android/webkit/WebView#loadUrl(java.lang.String)))
  ///- iOS ([Official API - WKWebView.load](https://developer.apple.com/documentation/webkit/wkwebview/1414954-load))
  Future<void> loadFile({required String assetFilePath}) async {
    assert(assetFilePath.isNotEmpty);
    Map<String, dynamic> args = <String, dynamic>{};
    args.putIfAbsent('assetFilePath', () => assetFilePath);
    await _channel.invokeMethod('loadFile', args);
  }

  ///Reloads the WebView.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebView.reload](https://developer.android.com/reference/android/webkit/WebView#reload()))
  ///- iOS ([Official API - WKWebView.reload](https://developer.apple.com/documentation/webkit/wkwebview/1414969-reload))
  Future<void> reload() async {
    Map<String, dynamic> args = <String, dynamic>{};
    await _channel.invokeMethod('reload', args);
  }

  ///Goes back in the history of the WebView.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebView.goBack](https://developer.android.com/reference/android/webkit/WebView#goBack()))
  ///- iOS ([Official API - WKWebView.goBack](https://developer.apple.com/documentation/webkit/wkwebview/1414952-goback))
  Future<void> goBack() async {
    Map<String, dynamic> args = <String, dynamic>{};
    await _channel.invokeMethod('goBack', args);
  }

  ///Returns a boolean value indicating whether the WebView can move backward.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebView.canGoBack](https://developer.android.com/reference/android/webkit/WebView#canGoBack()))
  ///- iOS ([Official API - WKWebView.canGoBack](https://developer.apple.com/documentation/webkit/wkwebview/1414966-cangoback))
  Future<bool> canGoBack() async {
    Map<String, dynamic> args = <String, dynamic>{};
    return await _channel.invokeMethod('canGoBack', args);
  }

  ///Goes forward in the history of the WebView.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebView.goForward](https://developer.android.com/reference/android/webkit/WebView#goForward()))
  ///- iOS ([Official API - WKWebView.goForward](https://developer.apple.com/documentation/webkit/wkwebview/1414993-goforward))
  Future<void> goForward() async {
    Map<String, dynamic> args = <String, dynamic>{};
    await _channel.invokeMethod('goForward', args);
  }

  ///Returns a boolean value indicating whether the WebView can move forward.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebView.canGoForward](https://developer.android.com/reference/android/webkit/WebView#canGoForward()))
  ///- iOS ([Official API - WKWebView.canGoForward](https://developer.apple.com/documentation/webkit/wkwebview/1414962-cangoforward))
  Future<bool> canGoForward() async {
    Map<String, dynamic> args = <String, dynamic>{};
    return await _channel.invokeMethod('canGoForward', args);
  }

  ///Goes to the history item that is the number of steps away from the current item. Steps is negative if backward and positive if forward.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebView.goBackOrForward](https://developer.android.com/reference/android/webkit/WebView#goBackOrForward(int)))
  ///- iOS ([Official API - WKWebView.go](https://developer.apple.com/documentation/webkit/wkwebview/1414991-go))
  Future<void> goBackOrForward({required int steps}) async {
    Map<String, dynamic> args = <String, dynamic>{};
    args.putIfAbsent('steps', () => steps);
    await _channel.invokeMethod('goBackOrForward', args);
  }

  ///Returns a boolean value indicating whether the WebView can go back or forward the given number of steps. Steps is negative if backward and positive if forward.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebView.canGoBackOrForward](https://developer.android.com/reference/android/webkit/WebView#canGoBackOrForward(int)))
  ///- iOS
  Future<bool> canGoBackOrForward({required int steps}) async {
    Map<String, dynamic> args = <String, dynamic>{};
    args.putIfAbsent('steps', () => steps);
    return await _channel.invokeMethod('canGoBackOrForward', args);
  }

  ///Navigates to a [WebHistoryItem] from the back-forward [WebHistory.list] and sets it as the current item.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView
  ///- iOS
  Future<void> goTo({required WebHistoryItem historyItem}) async {
    var steps = historyItem.offset;
    if (steps != null) {
      await goBackOrForward(steps: steps);
    }
  }

  ///Check if the WebView instance is in a loading state.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView
  ///- iOS
  Future<bool> isLoading() async {
    Map<String, dynamic> args = <String, dynamic>{};
    return await _channel.invokeMethod('isLoading', args);
  }

  ///Stops the WebView from loading.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebView.stopLoading](https://developer.android.com/reference/android/webkit/WebView#stopLoading()))
  ///- iOS ([Official API - WKWebView.stopLoading](https://developer.apple.com/documentation/webkit/wkwebview/1414981-stoploading))
  Future<void> stopLoading() async {
    Map<String, dynamic> args = <String, dynamic>{};
    await _channel.invokeMethod('stopLoading', args);
  }

  ///Evaluates JavaScript [source] code into the WebView and returns the result of the evaluation.
  ///
  ///[contentWorld], on iOS, it represents the namespace in which to evaluate the JavaScript [source] code.
  ///Instead, on Android, it will run the [source] code into an iframe, using `eval(source);` to get and return the result.
  ///This parameter doesn’t apply to changes you make to the underlying web content, such as the document’s DOM structure.
  ///Those changes remain visible to all scripts, regardless of which content world you specify.
  ///For more information about content worlds, see [ContentWorld].
  ///Available on iOS 14.0+.
  ///
  ///**NOTE**: This method shouldn't be called in the [WebView.onWebViewCreated] or [WebView.onLoadStart] events,
  ///because, in these events, the [WebView] is not ready to handle it yet.
  ///Instead, you should call this method, for example, inside the [WebView.onLoadStop] event or in any other events
  ///where you know the page is ready "enough".
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebView.evaluateJavascript](https://developer.android.com/reference/android/webkit/WebView#evaluateJavascript(java.lang.String,%20android.webkit.ValueCallback%3Cjava.lang.String%3E)))
  ///- iOS ([Official API - WKWebView.evaluateJavascript](https://developer.apple.com/documentation/webkit/wkwebview/3656442-evaluatejavascript))
  Future<dynamic> evaluateJavascript(
      {required String source, ContentWorld? contentWorld}) async {
    Map<String, dynamic> args = <String, dynamic>{};
    args.putIfAbsent('source', () => source);
    args.putIfAbsent('contentWorld', () => contentWorld?.toMap());
    var data = await _channel.invokeMethod('evaluateJavascript', args);
    if (data != null && defaultTargetPlatform == TargetPlatform.android) {
      try {
        // try to json decode the data coming from JavaScript
        // otherwise return it as it is.
        data = json.decode(data);
      } catch (e) {}
    }
    return data;
  }

  ///Injects an external JavaScript file into the WebView from a defined url.
  ///
  ///[scriptHtmlTagAttributes] represents the possible the `<script>` HTML attributes to be set.
  ///
  ///**NOTE**: This method shouldn't be called in the [WebView.onWebViewCreated] or [WebView.onLoadStart] events,
  ///because, in these events, the [WebView] is not ready to handle it yet.
  ///Instead, you should call this method, for example, inside the [WebView.onLoadStop] event or in any other events
  ///where you know the page is ready "enough".
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView
  ///- iOS
  Future<void> injectJavascriptFileFromUrl(
      {required Uri urlFile,
      ScriptHtmlTagAttributes? scriptHtmlTagAttributes}) async {
    assert(urlFile.toString().isNotEmpty);
    var id = scriptHtmlTagAttributes?.id;
    if (scriptHtmlTagAttributes != null && id != null) {
      _injectedScriptsFromURL[id] = scriptHtmlTagAttributes;
    }
    Map<String, dynamic> args = <String, dynamic>{};
    args.putIfAbsent('urlFile', () => urlFile.toString());
    args.putIfAbsent(
        'scriptHtmlTagAttributes', () => scriptHtmlTagAttributes?.toMap());
    await _channel.invokeMethod('injectJavascriptFileFromUrl', args);
  }

  ///Evaluates the content of a JavaScript file into the WebView from the flutter assets directory.
  ///
  ///**NOTE**: This method shouldn't be called in the [WebView.onWebViewCreated] or [WebView.onLoadStart] events,
  ///because, in these events, the [WebView] is not ready to handle it yet.
  ///Instead, you should call this method, for example, inside the [WebView.onLoadStop] event or in any other events
  ///where you know the page is ready "enough".
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView
  ///- iOS
  Future<dynamic> injectJavascriptFileFromAsset(
      {required String assetFilePath}) async {
    String source = await rootBundle.loadString(assetFilePath);
    return await evaluateJavascript(source: source);
  }

  ///Injects CSS into the WebView.
  ///
  ///**NOTE**: This method shouldn't be called in the [WebView.onWebViewCreated] or [WebView.onLoadStart] events,
  ///because, in these events, the [WebView] is not ready to handle it yet.
  ///Instead, you should call this method, for example, inside the [WebView.onLoadStop] event or in any other events
  ///where you know the page is ready "enough".
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView
  ///- iOS
  Future<void> injectCSSCode({required String source}) async {
    Map<String, dynamic> args = <String, dynamic>{};
    args.putIfAbsent('source', () => source);
    await _channel.invokeMethod('injectCSSCode', args);
  }

  ///Injects an external CSS file into the WebView from a defined url.
  ///
  ///[cssLinkHtmlTagAttributes] represents the possible CSS stylesheet `<link>` HTML attributes to be set.
  ///
  ///**NOTE**: This method shouldn't be called in the [WebView.onWebViewCreated] or [WebView.onLoadStart] events,
  ///because, in these events, the [WebView] is not ready to handle it yet.
  ///Instead, you should call this method, for example, inside the [WebView.onLoadStop] event or in any other events
  ///where you know the page is ready "enough".
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView
  ///- iOS
  Future<void> injectCSSFileFromUrl(
      {required Uri urlFile,
      CSSLinkHtmlTagAttributes? cssLinkHtmlTagAttributes}) async {
    assert(urlFile.toString().isNotEmpty);
    Map<String, dynamic> args = <String, dynamic>{};
    args.putIfAbsent('urlFile', () => urlFile.toString());
    args.putIfAbsent(
        'cssLinkHtmlTagAttributes', () => cssLinkHtmlTagAttributes?.toMap());
    await _channel.invokeMethod('injectCSSFileFromUrl', args);
  }

  ///Injects a CSS file into the WebView from the flutter assets directory.
  ///
  ///**NOTE**: This method shouldn't be called in the [WebView.onWebViewCreated] or [WebView.onLoadStart] events,
  ///because, in these events, the [WebView] is not ready to handle it yet.
  ///Instead, you should call this method, for example, inside the [WebView.onLoadStop] event or in any other events
  ///where you know the page is ready "enough".
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView
  ///- iOS
  Future<void> injectCSSFileFromAsset({required String assetFilePath}) async {
    String source = await rootBundle.loadString(assetFilePath);
    await injectCSSCode(source: source);
  }

  ///Adds a JavaScript message handler [callback] ([JavaScriptHandlerCallback]) that listen to post messages sent from JavaScript by the handler with name [handlerName].
  ///
  ///The Android implementation uses [addJavascriptInterface](https://developer.android.com/reference/android/webkit/WebView#addJavascriptInterface(java.lang.Object,%20java.lang.String)).
  ///The iOS implementation uses [addScriptMessageHandler](https://developer.apple.com/documentation/webkit/wkusercontentcontroller/1537172-addscriptmessagehandler?language=objc)
  ///
  ///The JavaScript function that can be used to call the handler is `window.flutter_inappwebview.callHandler(handlerName <String>, ...args)`, where `args` are [rest parameters](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/rest_parameters).
  ///The `args` will be stringified automatically using `JSON.stringify(args)` method and then they will be decoded on the Dart side.
  ///
  ///In order to call `window.flutter_inappwebview.callHandler(handlerName <String>, ...args)` properly, you need to wait and listen the JavaScript event `flutterInAppWebViewPlatformReady`.
  ///This event will be dispatched as soon as the platform (Android or iOS) is ready to handle the `callHandler` method.
  ///```javascript
  ///   window.addEventListener("flutterInAppWebViewPlatformReady", function(event) {
  ///     console.log("ready");
  ///   });
  ///```
  ///
  ///`window.flutter_inappwebview.callHandler` returns a JavaScript [Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise)
  ///that can be used to get the json result returned by [JavaScriptHandlerCallback].
  ///In this case, simply return data that you want to send and it will be automatically json encoded using [jsonEncode] from the `dart:convert` library.
  ///
  ///So, on the JavaScript side, to get data coming from the Dart side, you will use:
  ///```html
  ///<script>
  ///   window.addEventListener("flutterInAppWebViewPlatformReady", function(event) {
  ///     window.flutter_inappwebview.callHandler('handlerFoo').then(function(result) {
  ///       console.log(result);
  ///     });
  ///
  ///     window.flutter_inappwebview.callHandler('handlerFooWithArgs', 1, true, ['bar', 5], {foo: 'baz'}).then(function(result) {
  ///       console.log(result);
  ///     });
  ///   });
  ///</script>
  ///```
  ///
  ///Instead, on the `onLoadStop` WebView event, you can use `callHandler` directly:
  ///```dart
  ///  // Inject JavaScript that will receive data back from Flutter
  ///  inAppWebViewController.evaluateJavascript(source: """
  ///    window.flutter_inappwebview.callHandler('test', 'Text from Javascript').then(function(result) {
  ///      console.log(result);
  ///    });
  ///  """);
  ///```
  ///
  ///Forbidden names for JavaScript handlers are defined in [_JAVASCRIPT_HANDLER_FORBIDDEN_NAMES].
  ///
  ///**NOTE**: This method should be called, for example, in the [WebView.onWebViewCreated] or [WebView.onLoadStart] events or, at least,
  ///before you know that your JavaScript code will call the `window.flutter_inappwebview.callHandler` method,
  ///otherwise you won't be able to intercept the JavaScript message.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView
  ///- iOS
  void addJavaScriptHandler(
      {required String handlerName,
      required JavaScriptHandlerCallback callback}) {
    assert(!_JAVASCRIPT_HANDLER_FORBIDDEN_NAMES.contains(handlerName),
        '"$handlerName" is a forbidden name!');
    this.javaScriptHandlersMap[handlerName] = (callback);
  }

  ///Removes a JavaScript message handler previously added with the [addJavaScriptHandler()] associated to [handlerName] key.
  ///Returns the value associated with [handlerName] before it was removed.
  ///Returns `null` if [handlerName] was not found.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView
  ///- iOS
  JavaScriptHandlerCallback? removeJavaScriptHandler(
      {required String handlerName}) {
    return this.javaScriptHandlersMap.remove(handlerName);
  }

  ///Takes a screenshot of the WebView's visible viewport and returns a [Uint8List]. Returns `null` if it wasn't be able to take it.
  ///
  ///[screenshotConfiguration] represents the configuration data to use when generating an image from a web view’s contents.
  ///
  ///**NOTE for iOS**: available on iOS 11.0+.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView
  ///- iOS ([Official API - WKWebView.takeSnapshot](https://developer.apple.com/documentation/webkit/wkwebview/2873260-takesnapshot))
  Future<Uint8List?> takeScreenshot(
      {ScreenshotConfiguration? screenshotConfiguration}) async {
    Map<String, dynamic> args = <String, dynamic>{};
    args.putIfAbsent(
        'screenshotConfiguration', () => screenshotConfiguration?.toMap());
    return await _channel.invokeMethod('takeScreenshot', args);
  }

  ///Use [setSettings] instead.
  @Deprecated('Use setSettings instead')
  Future<void> setOptions({required InAppWebViewGroupOptions options}) async {
    Map<String, dynamic> args = <String, dynamic>{};

    args.putIfAbsent('settings', () => options.toMap());
    await _channel.invokeMethod('setSettings', args);
  }

  ///Use [getSettings] instead.
  @Deprecated('Use getSettings instead')
  Future<InAppWebViewGroupOptions?> getOptions() async {
    Map<String, dynamic> args = <String, dynamic>{};

    Map<dynamic, dynamic>? options =
        await _channel.invokeMethod('getSettings', args);
    if (options != null) {
      options = options.cast<String, dynamic>();
      return InAppWebViewGroupOptions.fromMap(options as Map<String, dynamic>);
    }

    return null;
  }

  ///Sets the WebView settings with the new [settings] and evaluates them.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView
  ///- iOS
  Future<void> setSettings({required InAppWebViewSettings settings}) async {
    Map<String, dynamic> args = <String, dynamic>{};

    args.putIfAbsent('settings', () => settings.toMap());
    await _channel.invokeMethod('setSettings', args);
  }

  ///Gets the current WebView settings. Returns `null` if it wasn't able to get them.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView
  ///- iOS
  Future<InAppWebViewSettings?> getSettings() async {
    Map<String, dynamic> args = <String, dynamic>{};

    Map<dynamic, dynamic>? settings =
    await _channel.invokeMethod('getSettings', args);
    if (settings != null) {
      settings = settings.cast<String, dynamic>();
      return InAppWebViewSettings.fromMap(settings as Map<String, dynamic>);
    }

    return null;
  }

  ///Gets the WebHistory for this WebView. This contains the back/forward list for use in querying each item in the history stack.
  ///This contains only a snapshot of the current state.
  ///Multiple calls to this method may return different objects.
  ///The object returned from this method will not be updated to reflect any new state.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebView.copyBackForwardList](https://developer.android.com/reference/android/webkit/WebView#copyBackForwardList()))
  ///- iOS ([Official API - WKWebView.backForwardList](https://developer.apple.com/documentation/webkit/wkwebview/1414977-backforwardlist))
  Future<WebHistory?> getCopyBackForwardList() async {
    Map<String, dynamic> args = <String, dynamic>{};
    Map<String, dynamic>? result =
        (await _channel.invokeMethod('getCopyBackForwardList', args))
            ?.cast<String, dynamic>();
    return WebHistory.fromMap(result);
  }

  ///Clears all the WebView's cache.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView
  ///- iOS
  Future<void> clearCache() async {
    Map<String, dynamic> args = <String, dynamic>{};
    await _channel.invokeMethod('clearCache', args);
  }

  ///Finds all instances of find on the page and highlights them. Notifies [WebView.onFindResultReceived] listener.
  ///
  ///[find] represents the string to find.
  ///
  ///**NOTE**: on Android native WebView, it finds all instances asynchronously. Successive calls to this will cancel any pending searches.
  ///
  ///**NOTE**: on iOS, this is implemented using CSS and Javascript.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebView.findAllAsync](https://developer.android.com/reference/android/webkit/WebView#findAllAsync(java.lang.String)))
  ///- iOS
  Future<void> findAllAsync({required String find}) async {
    Map<String, dynamic> args = <String, dynamic>{};
    args.putIfAbsent('find', () => find);
    await _channel.invokeMethod('findAllAsync', args);
  }

  ///Highlights and scrolls to the next match found by [findAllAsync]. Notifies [WebView.onFindResultReceived] listener.
  ///
  ///[forward] represents the direction to search.
  ///
  ///**NOTE**: on iOS, this is implemented using CSS and Javascript.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebView.findNext](https://developer.android.com/reference/android/webkit/WebView#findNext(boolean)))
  ///- iOS
  Future<void> findNext({required bool forward}) async {
    Map<String, dynamic> args = <String, dynamic>{};
    args.putIfAbsent('forward', () => forward);
    await _channel.invokeMethod('findNext', args);
  }

  ///Clears the highlighting surrounding text matches created by [findAllAsync()].
  ///
  ///**NOTE**: on iOS, this is implemented using CSS and Javascript.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebView.clearMatches](https://developer.android.com/reference/android/webkit/WebView#clearMatches()))
  ///- iOS
  Future<void> clearMatches() async {
    Map<String, dynamic> args = <String, dynamic>{};
    await _channel.invokeMethod('clearMatches', args);
  }

  ///Gets the html (with javascript) of the Chromium's t-rex runner game. Used in combination with [getTRexRunnerCss].
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView
  ///- iOS
  Future<String> getTRexRunnerHtml() async {
    return await rootBundle.loadString(
        "packages/flutter_inappwebview/assets/t_rex_runner/t-rex.html");
  }

  ///Gets the css of the Chromium's t-rex runner game. Used in combination with [getTRexRunnerHtml].
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView
  ///- iOS
  Future<String> getTRexRunnerCss() async {
    return await rootBundle.loadString(
        "packages/flutter_inappwebview/assets/t_rex_runner/t-rex.css");
  }

  ///Scrolls the WebView to the position.
  ///
  ///[x] represents the x position to scroll to.
  ///
  ///[y] represents the y position to scroll to.
  ///
  ///[animated] `true` to animate the scroll transition, `false` to make the scoll transition immediate.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - View.scrollTo](https://developer.android.com/reference/android/view/View#scrollTo(int,%20int)))
  ///- iOS ([Official API - UIScrollView.setContentOffset](https://developer.apple.com/documentation/uikit/uiscrollview/1619400-setcontentoffset))
  Future<void> scrollTo(
      {required int x, required int y, bool animated = false}) async {
    Map<String, dynamic> args = <String, dynamic>{};
    args.putIfAbsent('x', () => x);
    args.putIfAbsent('y', () => y);
    args.putIfAbsent('animated', () => animated);
    await _channel.invokeMethod('scrollTo', args);
  }

  ///Moves the scrolled position of the WebView.
  ///
  ///[x] represents the amount of pixels to scroll by horizontally.
  ///
  ///[y] represents the amount of pixels to scroll by vertically.
  ///
  ///[animated] `true` to animate the scroll transition, `false` to make the scoll transition immediate.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - View.scrollBy](https://developer.android.com/reference/android/view/View#scrollBy(int,%20int)))
  ///- iOS ([Official API - UIScrollView.setContentOffset](https://developer.apple.com/documentation/uikit/uiscrollview/1619400-setcontentoffset))
  Future<void> scrollBy(
      {required int x, required int y, bool animated = false}) async {
    Map<String, dynamic> args = <String, dynamic>{};
    args.putIfAbsent('x', () => x);
    args.putIfAbsent('y', () => y);
    args.putIfAbsent('animated', () => animated);
    await _channel.invokeMethod('scrollBy', args);
  }

  ///On Android native WebView, it pauses all layout, parsing, and JavaScript timers for all WebViews.
  ///This is a global requests, not restricted to just this WebView. This can be useful if the application has been paused.
  ///
  ///On iOS, it is implemented using JavaScript and it is restricted to just this WebView.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebView.pauseTimers](https://developer.android.com/reference/android/webkit/WebView#pauseTimers()))
  ///- iOS
  Future<void> pauseTimers() async {
    Map<String, dynamic> args = <String, dynamic>{};
    await _channel.invokeMethod('pauseTimers', args);
  }

  ///On Android, it resumes all layout, parsing, and JavaScript timers for all WebViews. This will resume dispatching all timers.
  ///
  ///On iOS, it is implemented using JavaScript and it resumes all layout, parsing, and JavaScript timers to just this WebView.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebView.resumeTimers](https://developer.android.com/reference/android/webkit/WebView#resumeTimers()))
  ///- iOS
  Future<void> resumeTimers() async {
    Map<String, dynamic> args = <String, dynamic>{};
    await _channel.invokeMethod('resumeTimers', args);
  }

  ///Prints the current page.
  ///
  ///**NOTE**: available on Android 21+.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - PrintManager](https://developer.android.com/reference/android/print/PrintManager))
  ///- iOS ([Official API - UIPrintInteractionController](https://developer.apple.com/documentation/uikit/uiprintinteractioncontroller))
  Future<void> printCurrentPage() async {
    Map<String, dynamic> args = <String, dynamic>{};
    await _channel.invokeMethod('printCurrentPage', args);
  }

  ///Gets the height of the HTML content.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebView.getContentHeight](https://developer.android.com/reference/android/webkit/WebView#getContentHeight()))
  ///- iOS ([Official API - UIScrollView.contentSize](https://developer.apple.com/documentation/uikit/uiscrollview/1619399-contentsize))
  Future<int?> getContentHeight() async {
    Map<String, dynamic> args = <String, dynamic>{};
    return await _channel.invokeMethod('getContentHeight', args);
  }

  ///Performs a zoom operation in this WebView.
  ///
  ///[zoomFactor] represents the zoom factor to apply. On Android, the zoom factor will be clamped to the Webview's zoom limits and, also, this value must be in the range 0.01 (excluded) to 100.0 (included).
  ///
  ///[animated] `true` to animate the transition to the new scale, `false` to make the transition immediate.
  ///**NOTE**: available only on iOS.
  ///
  ///**NOTE**: available on Android 21+.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebView.zoomBy](https://developer.android.com/reference/android/webkit/WebView#zoomBy(float)))
  ///- iOS ([Official API - UIScrollView.setZoomScale](https://developer.apple.com/documentation/uikit/uiscrollview/1619412-setzoomscale))
  Future<void> zoomBy(
      {required double zoomFactor,
      @Deprecated('Use animated instead') bool? iosAnimated,
      bool animated = false}) async {
    assert(defaultTargetPlatform != TargetPlatform.android ||
        (defaultTargetPlatform == TargetPlatform.android &&
            zoomFactor > 0.01 &&
            zoomFactor <= 100.0));

    Map<String, dynamic> args = <String, dynamic>{};
    args.putIfAbsent('zoomFactor', () => zoomFactor);
    args.putIfAbsent('animated', () => iosAnimated ?? animated);
    return await _channel.invokeMethod('zoomBy', args);
  }

  ///Gets the URL that was originally requested for the current page.
  ///This is not always the same as the URL passed to [InAppWebView.onLoadStarted] because although the load for that URL has begun,
  ///the current page may not have changed. Also, there may have been redirects resulting in a different URL to that originally requested.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebView.getOriginalUrl](https://developer.android.com/reference/android/webkit/WebView#getOriginalUrl()))
  ///- iOS
  Future<Uri?> getOriginalUrl() async {
    Map<String, dynamic> args = <String, dynamic>{};
    String? url = await _channel.invokeMethod('getOriginalUrl', args);
    return url != null ? Uri.parse(url) : null;
  }

  ///Gets the current zoom scale of the WebView.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView
  ///- iOS ([Official API - UIScrollView.zoomScale](https://developer.apple.com/documentation/uikit/uiscrollview/1619419-zoomscale))
  Future<double?> getZoomScale() async {
    Map<String, dynamic> args = <String, dynamic>{};
    return await _channel.invokeMethod('getZoomScale', args);
  }

  ///Use [getZoomScale] instead.
  @Deprecated('Use getZoomScale instead')
  Future<double?> getScale() async {
    return await getZoomScale();
  }

  ///Gets the selected text.
  ///
  ///**NOTE**: this method is implemented with using JavaScript.
  ///
  ///**NOTE for Android native WebView**: available only on Android 19+.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView
  ///- iOS
  Future<String?> getSelectedText() async {
    Map<String, dynamic> args = <String, dynamic>{};
    return await _channel.invokeMethod('getSelectedText', args);
  }

  ///Gets the hit result for hitting an HTML elements.
  ///
  ///**NOTE**: On iOS, it is implemented using JavaScript.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebView.getHitTestResult](https://developer.android.com/reference/android/webkit/WebView#getHitTestResult()))
  ///- iOS
  Future<InAppWebViewHitTestResult?> getHitTestResult() async {
    Map<String, dynamic> args = <String, dynamic>{};
    Map<dynamic, dynamic>? hitTestResultMap =
        await _channel.invokeMethod('getHitTestResult', args);

    if (hitTestResultMap == null) {
      return null;
    }

    hitTestResultMap = hitTestResultMap.cast<String, dynamic>();

    InAppWebViewHitTestResultType? type =
        InAppWebViewHitTestResultType.fromValue(
            hitTestResultMap["type"]?.toInt());
    String? extra = hitTestResultMap["extra"];
    return InAppWebViewHitTestResult(type: type, extra: extra);
  }

  ///Clears the current focus. On iOS and Android native WebView, it will clear also, for example, the current text selection.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - ViewGroup.clearFocus](https://developer.android.com/reference/android/view/ViewGroup#clearFocus()))
  ///- iOS ([Official API - UIResponder.resignFirstResponder](https://developer.apple.com/documentation/uikit/uiresponder/1621097-resignfirstresponder))
  Future<void> clearFocus() async {
    Map<String, dynamic> args = <String, dynamic>{};
    return await _channel.invokeMethod('clearFocus', args);
  }

  ///Sets or updates the WebView context menu to be used next time it will appear.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView
  ///- iOS
  Future<void> setContextMenu(ContextMenu? contextMenu) async {
    Map<String, dynamic> args = <String, dynamic>{};
    args.putIfAbsent("contextMenu", () => contextMenu?.toMap());
    await _channel.invokeMethod('setContextMenu', args);
    _inAppBrowser?.contextMenu = contextMenu;
  }

  ///Requests the anchor or image element URL at the last tapped point.
  ///
  ///**NOTE**: On iOS, it is implemented using JavaScript.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebView.requestFocusNodeHref](https://developer.android.com/reference/android/webkit/WebView#requestFocusNodeHref(android.os.Message)))
  ///- iOS
  Future<RequestFocusNodeHrefResult?> requestFocusNodeHref() async {
    Map<String, dynamic> args = <String, dynamic>{};
    Map<dynamic, dynamic>? result =
        await _channel.invokeMethod('requestFocusNodeHref', args);
    return result != null
        ? RequestFocusNodeHrefResult(
            url: result['url'] != null ? Uri.parse(result['url']) : null,
            title: result['title'],
            src: result['src'],
          )
        : null;
  }

  ///Requests the URL of the image last touched by the user.
  ///
  ///**NOTE**: On iOS, it is implemented using JavaScript.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebView.requestImageRef](https://developer.android.com/reference/android/webkit/WebView#requestImageRef(android.os.Message)))
  ///- iOS
  Future<RequestImageRefResult?> requestImageRef() async {
    Map<String, dynamic> args = <String, dynamic>{};
    Map<dynamic, dynamic>? result =
        await _channel.invokeMethod('requestImageRef', args);
    return result != null
        ? RequestImageRefResult(
            url: result['url'] != null ? Uri.parse(result['url']) : null,
          )
        : null;
  }

  ///Returns the list of `<meta>` tags of the current WebView.
  ///
  ///**NOTE**: It is implemented using JavaScript.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView
  ///- iOS
  Future<List<MetaTag>> getMetaTags() async {
    List<MetaTag> metaTags = [];

    List<Map<dynamic, dynamic>>? metaTagList =
        (await evaluateJavascript(source: """
(function() {
  var metaTags = [];
  var metaTagNodes = document.head.getElementsByTagName('meta');
  for (var i = 0; i < metaTagNodes.length; i++) {
    var metaTagNode = metaTagNodes[i];
    
    var otherAttributes = metaTagNode.getAttributeNames();
    var nameIndex = otherAttributes.indexOf("name");
    if (nameIndex !== -1) otherAttributes.splice(nameIndex, 1);
    var contentIndex = otherAttributes.indexOf("content");
    if (contentIndex !== -1) otherAttributes.splice(contentIndex, 1);
    
    var attrs = [];
    for (var j = 0; j < otherAttributes.length; j++) {
      var otherAttribute = otherAttributes[j];
      attrs.push(
        {
          name: otherAttribute,
          value: metaTagNode.getAttribute(otherAttribute)
        }
      );
    }

    metaTags.push(
      {
        name: metaTagNode.name,
        content: metaTagNode.content,
        attrs: attrs
      }
    );
  }
  return metaTags;
})();
    """))?.cast<Map<dynamic, dynamic>>();

    if (metaTagList == null) {
      return metaTags;
    }

    for (var metaTag in metaTagList) {
      var attrs = <MetaTagAttribute>[];

      for (var metaTagAttr in metaTag["attrs"]) {
        attrs.add(MetaTagAttribute(
            name: metaTagAttr["name"], value: metaTagAttr["value"]));
      }

      metaTags.add(MetaTag(
          name: metaTag["name"], content: metaTag["content"], attrs: attrs));
    }

    return metaTags;
  }

  ///Returns an instance of [Color] representing the `content` value of the
  ///`<meta name="theme-color" content="">` tag of the current WebView, if available, otherwise `null`.
  ///
  ///**NOTE**: It is implemented using JavaScript.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView
  ///- iOS
  Future<Color?> getMetaThemeColor() async {
    var metaTags = await getMetaTags();
    MetaTag? metaTagThemeColor;

    for (var metaTag in metaTags) {
      if (metaTag.name == "theme-color") {
        metaTagThemeColor = metaTag;
        break;
      }
    }

    if (metaTagThemeColor == null) {
      return null;
    }

    var colorValue = metaTagThemeColor.content;

    return colorValue != null
        ? UtilColor.fromStringRepresentation(colorValue)
        : null;
  }

  ///Returns the scrolled left position of the current WebView.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - View.getScrollX](https://developer.android.com/reference/android/view/View#getScrollX()))
  ///- iOS ([Official API - UIScrollView.contentOffset](https://developer.apple.com/documentation/uikit/uiscrollview/1619404-contentoffset))
  Future<int?> getScrollX() async {
    Map<String, dynamic> args = <String, dynamic>{};
    return await _channel.invokeMethod('getScrollX', args);
  }

  ///Returns the scrolled top position of the current WebView.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - View.getScrollY](https://developer.android.com/reference/android/view/View#getScrollY()))
  ///- iOS ([Official API - UIScrollView.contentOffset](https://developer.apple.com/documentation/uikit/uiscrollview/1619404-contentoffset))
  Future<int?> getScrollY() async {
    Map<String, dynamic> args = <String, dynamic>{};
    return await _channel.invokeMethod('getScrollY', args);
  }

  ///Gets the SSL certificate for the main top-level page or null if there is no certificate (the site is not secure).
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebView.getCertificate](https://developer.android.com/reference/android/webkit/WebView#getCertificate()))
  ///- iOS
  Future<SslCertificate?> getCertificate() async {
    Map<String, dynamic> args = <String, dynamic>{};
    Map<String, dynamic>? sslCertificateMap =
        (await _channel.invokeMethod('getCertificate', args))
            ?.cast<String, dynamic>();
    return SslCertificate.fromMap(sslCertificateMap);
  }

  ///Injects the specified [userScript] into the webpage’s content.
  ///
  ///**NOTE for iOS**: this method will throw an error if the [WebView.windowId] has been set.
  ///There isn't any way to add/remove user scripts specific to iOS window WebViews.
  ///This is a limitation of the native iOS WebKit APIs.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView
  ///- iOS ([Official API - WKUserContentController.addUserScript](https://developer.apple.com/documentation/webkit/wkusercontentcontroller/1537448-adduserscript))
  Future<void> addUserScript({required UserScript userScript}) async {
    assert(_webview?.windowId == null ||
        defaultTargetPlatform != TargetPlatform.iOS);

    Map<String, dynamic> args = <String, dynamic>{};
    args.putIfAbsent('userScript', () => userScript.toMap());
    if (!_userScripts.contains(userScript)) {
      _userScripts.add(userScript);
      await _channel.invokeMethod('addUserScript', args);
    }
  }

  ///Injects the [userScripts] into the webpage’s content.
  ///
  ///**NOTE for iOS**: this method will throw an error if the [WebView.windowId] has been set.
  ///There isn't any way to add/remove user scripts specific to iOS window WebViews.
  ///This is a limitation of the native iOS WebKit APIs.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView
  ///- iOS
  Future<void> addUserScripts({required List<UserScript> userScripts}) async {
    assert(_webview?.windowId == null ||
        defaultTargetPlatform != TargetPlatform.iOS);

    for (var i = 0; i < userScripts.length; i++) {
      await addUserScript(userScript: userScripts[i]);
    }
  }

  ///Removes the specified [userScript] from the webpage’s content.
  ///User scripts already loaded into the webpage's content cannot be removed. This will have effect only on the next page load.
  ///Returns `true` if [userScript] was in the list, `false` otherwise.
  ///
  ///**NOTE for iOS**: this method will throw an error if the [WebView.windowId] has been set.
  ///There isn't any way to add/remove user scripts specific to iOS window WebViews.
  ///This is a limitation of the native iOS WebKit APIs.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView
  ///- iOS
  Future<bool> removeUserScript({required UserScript userScript}) async {
    assert(_webview?.windowId == null ||
        defaultTargetPlatform != TargetPlatform.iOS);

    var index = _userScripts.indexOf(userScript);
    if (index == -1) {
      return false;
    }

    _userScripts.remove(userScript);
    Map<String, dynamic> args = <String, dynamic>{};
    args.putIfAbsent('userScript', () => userScript.toMap());
    args.putIfAbsent('index', () => index);
    await _channel.invokeMethod('removeUserScript', args);

    return true;
  }

  ///Removes all the [UserScript]s with [groupName] as group name from the webpage’s content.
  ///User scripts already loaded into the webpage's content cannot be removed. This will have effect only on the next page load.
  ///
  ///**NOTE for iOS**: this method will throw an error if the [WebView.windowId] has been set.
  ///There isn't any way to add/remove user scripts specific to iOS window WebViews.
  ///This is a limitation of the native iOS WebKit APIs.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView
  ///- iOS
  Future<void> removeUserScriptsByGroupName({required String groupName}) async {
    assert(_webview?.windowId == null ||
        defaultTargetPlatform != TargetPlatform.iOS);

    Map<String, dynamic> args = <String, dynamic>{};
    args.putIfAbsent('groupName', () => groupName);
    await _channel.invokeMethod('removeUserScriptsByGroupName', args);
  }

  ///Removes the [userScripts] from the webpage’s content.
  ///User scripts already loaded into the webpage's content cannot be removed. This will have effect only on the next page load.
  ///
  ///**NOTE for iOS**: this method will throw an error if the [WebView.windowId] has been set.
  ///There isn't any way to add/remove user scripts specific to iOS window WebViews.
  ///This is a limitation of the native iOS WebKit APIs.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView
  ///- iOS
  Future<void> removeUserScripts(
      {required List<UserScript> userScripts}) async {
    assert(_webview?.windowId == null ||
        defaultTargetPlatform != TargetPlatform.iOS);

    for (var i = 0; i < userScripts.length; i++) {
      await removeUserScript(userScript: userScripts[i]);
    }
  }

  ///Removes all the user scripts from the webpage’s content.
  ///
  ///**NOTE for iOS**: this method will throw an error if the [WebView.windowId] has been set.
  ///There isn't any way to add/remove user scripts specific to iOS window WebViews.
  ///This is a limitation of the native iOS WebKit APIs.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView
  ///- iOS ([Official API - WKUserContentController.removeAllUserScripts](https://developer.apple.com/documentation/webkit/wkusercontentcontroller/1536540-removealluserscripts))
  Future<void> removeAllUserScripts() async {
    assert(_webview?.windowId == null ||
        defaultTargetPlatform != TargetPlatform.iOS);

    _userScripts.clear();
    Map<String, dynamic> args = <String, dynamic>{};
    await _channel.invokeMethod('removeAllUserScripts', args);
  }

  ///Executes the specified string as an asynchronous JavaScript function.
  ///
  ///[functionBody] is the JavaScript string to use as the function body.
  ///This method treats the string as an anonymous JavaScript function body and calls it with the named arguments in the arguments parameter.
  ///
  ///[arguments] is a `Map` of the arguments to pass to the function call.
  ///Each key in the `Map` corresponds to the name of an argument in the [functionBody] string,
  ///and the value of that key is the value to use during the evaluation of the code.
  ///Supported value types can be found in the official Flutter docs:
  ///[Platform channel data types support and codecs](https://flutter.dev/docs/development/platform-integration/platform-channels#codec),
  ///except for [Uint8List], [Int32List], [Int64List], and [Float64List] that should be converted into a [List].
  ///All items in a `List` or `Map` must also be one of the supported types.
  ///
  ///[contentWorld], on iOS, it represents the namespace in which to evaluate the JavaScript [source] code.
  ///Instead, on Android, it will run the [source] code into an iframe.
  ///This parameter doesn’t apply to changes you make to the underlying web content, such as the document’s DOM structure.
  ///Those changes remain visible to all scripts, regardless of which content world you specify.
  ///For more information about content worlds, see [ContentWorld].
  ///Available on iOS 14.0+.
  ///
  ///**NOTE**: This method shouldn't be called in the [WebView.onWebViewCreated] or [WebView.onLoadStart] events,
  ///because, in these events, the [WebView] is not ready to handle it yet.
  ///Instead, you should call this method, for example, inside the [WebView.onLoadStop] event or in any other events
  ///where you know the page is ready "enough".
  ///
  ///**NOTE for iOS**: available only on iOS 10.3+.
  ///
  ///**NOTE for Android**: available only on Android 21+.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView
  ///- iOS ([Official API - WKWebView.callAsyncJavaScript](https://developer.apple.com/documentation/webkit/wkwebview/3656441-callasyncjavascript))
  Future<CallAsyncJavaScriptResult?> callAsyncJavaScript(
      {required String functionBody,
      Map<String, dynamic> arguments = const <String, dynamic>{},
      ContentWorld? contentWorld}) async {
    Map<String, dynamic> args = <String, dynamic>{};
    args.putIfAbsent('functionBody', () => functionBody);
    args.putIfAbsent('arguments', () => arguments);
    args.putIfAbsent('contentWorld', () => contentWorld?.toMap());
    var data = await _channel.invokeMethod('callAsyncJavaScript', args);
    if (data == null) {
      return null;
    }
    if (defaultTargetPlatform == TargetPlatform.android) {
      data = json.decode(data);
    }
    return CallAsyncJavaScriptResult(
        value: data["value"], error: data["error"]);
  }

  ///Saves the current WebView as a web archive.
  ///Returns the file path under which the web archive file was saved, or `null` if saving the file failed.
  ///
  ///[filePath] represents the file path where the archive should be placed. This value cannot be `null`.
  ///
  ///[autoname] if `false`, takes [filePath] to be a file.
  ///If `true`, [filePath] is assumed to be a directory in which a filename will be chosen according to the URL of the current page.
  ///
  ///**NOTE for iOS**: Available on iOS 14.0+. If [autoname] is `false`, the [filePath] must ends with the [WebArchiveFormat.WEBARCHIVE] file extension.
  ///
  ///**NOTE for Android**: if [autoname] is `false`, the [filePath] must ends with the [WebArchiveFormat.MHT] file extension.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebView.saveWebArchive](https://developer.android.com/reference/android/webkit/WebView#saveWebArchive(java.lang.String,%20boolean,%20android.webkit.ValueCallback%3Cjava.lang.String%3E)))
  ///- iOS
  Future<String?> saveWebArchive(
      {required String filePath, bool autoname = false}) async {
    if (!autoname) {
      if (defaultTargetPlatform == TargetPlatform.android) {
        assert(filePath.endsWith("." + WebArchiveFormat.MHT.toValue()));
      } else if (defaultTargetPlatform == TargetPlatform.iOS) {
        assert(filePath.endsWith("." + WebArchiveFormat.WEBARCHIVE.toValue()));
      }
    }

    Map<String, dynamic> args = <String, dynamic>{};
    args.putIfAbsent("filePath", () => filePath);
    args.putIfAbsent("autoname", () => autoname);
    return await _channel.invokeMethod('saveWebArchive', args);
  }

  ///Indicates whether the webpage context is capable of using features that require [secure contexts](https://developer.mozilla.org/en-US/docs/Web/Security/Secure_Contexts).
  ///This is implemented using Javascript (see [window.isSecureContext](https://developer.mozilla.org/en-US/docs/Web/API/Window/isSecureContext)).
  ///
  ///**NOTE for Android**: available Android 21.0+.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView
  ///- iOS
  Future<bool> isSecureContext() async {
    Map<String, dynamic> args = <String, dynamic>{};
    return await _channel.invokeMethod('isSecureContext', args);
  }

  ///Creates a message channel to communicate with JavaScript and returns the message channel with ports that represent the endpoints of this message channel.
  ///The HTML5 message channel functionality is described [here](https://html.spec.whatwg.org/multipage/comms.html#messagechannel).
  ///
  ///The returned message channels are entangled and already in started state.
  ///
  ///This method should be called when the page is loaded, for example, when the [WebView.onLoadStop] is fired, otherwise the [WebMessageChannel] won't work.
  ///
  ///**NOTE for Android native WebView**: This method should only be called if [AndroidWebViewFeature.isFeatureSupported] returns `true` for [AndroidWebViewFeature.CREATE_WEB_MESSAGE_CHANNEL].
  ///
  ///**NOTE**: On iOS, it is implemented using JavaScript.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebViewCompat.createWebMessageChannel](https://developer.android.com/reference/androidx/webkit/WebViewCompat#createWebMessageChannel(android.webkit.WebView)))
  ///- iOS
  Future<WebMessageChannel?> createWebMessageChannel() async {
    Map<String, dynamic> args = <String, dynamic>{};
    Map<String, dynamic>? result =
        (await _channel.invokeMethod('createWebMessageChannel', args))
            ?.cast<String, dynamic>();
    return WebMessageChannel.fromMap(result);
  }

  ///Post a message to main frame. The embedded application can restrict the messages to a certain target origin.
  ///See [HTML5 spec](https://html.spec.whatwg.org/multipage/comms.html#posting-messages) for how target origin can be used.
  ///
  ///A target origin can be set as a wildcard ("*"). However this is not recommended.
  ///
  ///**NOTE for Android native WebView**: This method should only be called if [AndroidWebViewFeature.isFeatureSupported] returns `true` for [AndroidWebViewFeature.POST_WEB_MESSAGE].
  ///
  ///**NOTE**: On iOS, it is implemented using JavaScript.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebViewCompat.postWebMessage](https://developer.android.com/reference/androidx/webkit/WebViewCompat#postWebMessage(android.webkit.WebView,%20androidx.webkit.WebMessageCompat,%20android.net.Uri)))
  ///- iOS
  Future<void> postWebMessage(
      {required WebMessage message, Uri? targetOrigin}) async {
    if (targetOrigin == null) {
      targetOrigin = Uri.parse("");
    }
    Map<String, dynamic> args = <String, dynamic>{};
    args.putIfAbsent('message', () => message.toMap());
    args.putIfAbsent('targetOrigin', () => targetOrigin.toString());
    await _channel.invokeMethod('postWebMessage', args);
  }

  ///Adds a [WebMessageListener] to the WebView and injects a JavaScript object into each frame that the [WebMessageListener] will listen on.
  ///
  ///The injected JavaScript object will be named [WebMessageListener.jsObjectName] in the global scope.
  ///This will inject the JavaScript object in any frame whose origin matches [WebMessageListener.allowedOriginRules]
  ///for every navigation after this call, and the JavaScript object will be available immediately when the page begins to load.
  ///
  ///Each [WebMessageListener.allowedOriginRules] entry must follow the format `SCHEME "://" [ HOSTNAME_PATTERN [ ":" PORT ] ]`, each part is explained in the below table:
  ///
  ///<table>
  ///   <colgroup>
  ///      <col width="25%">
  ///   </colgroup>
  ///   <tbody>
  ///      <tr>
  ///         <th>Rule</th>
  ///         <th>Description</th>
  ///         <th>Example</th>
  ///      </tr>
  ///      <tr>
  ///         <td>http/https with hostname</td>
  ///         <td><code translate="no" dir="ltr">SCHEME</code> is http or https; <code translate="no" dir="ltr">HOSTNAME_<wbr>PATTERN</code> is a regular hostname; <code translate="no" dir="ltr">PORT</code> is optional, when not present, the rule will match port <code translate="no" dir="ltr">80</code> for http and port
  ///            <code translate="no" dir="ltr">443</code> for https.
  ///         </td>
  ///         <td>
  ///            <ul>
  ///               <li><code translate="no" dir="ltr">https://foobar.com:8080</code> - Matches https:// URL on port 8080, whose normalized
  ///                  host is foobar.com.
  ///               </li>
  ///               <li><code translate="no" dir="ltr">https://www.example.com</code> - Matches https:// URL on port 443, whose normalized host
  ///                  is www.example.com.
  ///               </li>
  ///            </ul>
  ///         </td>
  ///      </tr>
  ///      <tr>
  ///         <td>http/https with pattern matching</td>
  ///         <td><code translate="no" dir="ltr">SCHEME</code> is http or https; <code translate="no" dir="ltr">HOSTNAME_<wbr>PATTERN</code> is a sub-domain matching
  ///            pattern with a leading <code translate="no" dir="ltr">*.<wbr></code>; <code translate="no" dir="ltr">PORT</code> is optional, when not present, the rule will
  ///            match port <code translate="no" dir="ltr">80</code> for http and port <code translate="no" dir="ltr">443</code> for https.
  ///         </td>
  ///         <td>
  ///            <ul>
  ///               <li><code translate="no" dir="ltr">https://*.example.com</code> - Matches https://calendar.example.com and
  ///                  https://foo.bar.example.com but not https://example.com.
  ///               </li>
  ///               <li><code translate="no" dir="ltr">https://*.example.com:8080</code> - Matches https://calendar.example.com:8080</li>
  ///            </ul>
  ///         </td>
  ///      </tr>
  ///      <tr>
  ///         <td>http/https with IP literal</td>
  ///         <td><code translate="no" dir="ltr">SCHEME</code> is https or https; <code translate="no" dir="ltr">HOSTNAME_<wbr>PATTERN</code> is IP literal; <code translate="no" dir="ltr">PORT</code> is
  ///            optional, when not present, the rule will match port <code translate="no" dir="ltr">80</code> for http and port <code translate="no" dir="ltr">443</code>
  ///            for https.
  ///         </td>
  ///         <td>
  ///            <ul>
  ///               <li><code translate="no" dir="ltr">https://127.0.0.1</code> - Matches https:// URL on port 443, whose IPv4 address is
  ///                  127.0.0.1
  ///               </li>
  ///               <li><code translate="no" dir="ltr">https://[::1]</code> or <code translate="no" dir="ltr">https://[0:0::1]</code>- Matches any URL to the IPv6 loopback
  ///                  address with port 443.
  ///               </li>
  ///               <li><code translate="no" dir="ltr">https://[::1]:99</code> - Matches any https:// URL to the IPv6 loopback on port 99.</li>
  ///            </ul>
  ///         </td>
  ///      </tr>
  ///      <tr>
  ///         <td>Custom scheme</td>
  ///         <td><code translate="no" dir="ltr">SCHEME</code> is a custom scheme; <code translate="no" dir="ltr">HOSTNAME_<wbr>PATTERN</code> and <code translate="no" dir="ltr">PORT</code> must not be
  ///            present.
  ///         </td>
  ///         <td>
  ///            <ul>
  ///               <li><code translate="no" dir="ltr">my-app-scheme://</code> - Matches any my-app-scheme:// URL.</li>
  ///            </ul>
  ///         </td>
  ///      </tr>
  ///      <tr>
  ///         <td><code translate="no" dir="ltr">*</code></td>
  ///         <td>Wildcard rule, matches any origin.</td>
  ///         <td>
  ///            <ul>
  ///               <li><code translate="no" dir="ltr">*</code></li>
  ///            </ul>
  ///         </td>
  ///      </tr>
  ///   </tbody>
  ///</table>
  ///
  ///Note that this is a powerful API, as the JavaScript object will be injected when the frame's origin matches any one of the allowed origins.
  ///The HTTPS scheme is strongly recommended for security; allowing HTTP origins exposes the injected object to any potential network-based attackers.
  ///If a wildcard "*" is provided, it will inject the JavaScript object to all frames.
  ///A wildcard should only be used if the app wants **any** third party web page to be able to use the injected object.
  ///When using a wildcard, the app must treat received messages as untrustworthy and validate any data carefully.
  ///
  ///This method can be called multiple times to inject multiple JavaScript objects.
  ///
  ///Let's say the injected JavaScript object is named `myObject`. We will have following methods on that object once it is available to use:
  ///
  ///```javascript
  /// // Web page (in JavaScript)
  /// // message needs to be a JavaScript String, MessagePorts is an optional parameter.
  /// myObject.postMessage(message[, MessagePorts]) // on Android
  /// myObject.postMessage(message) // on iOS
  ///
  /// // To receive messages posted from the app side, assign a function to the "onmessage"
  /// // property. This function should accept a single "event" argument. "event" has a "data"
  /// // property, which is the message string from the app side.
  /// myObject.onmessage = function(event) { ... }
  ///
  /// // To be compatible with DOM EventTarget's addEventListener, it accepts type and listener
  /// // parameters, where type can be only "message" type and listener can only be a JavaScript
  /// // function for myObject. An event object will be passed to listener with a "data" property,
  /// // which is the message string from the app side.
  /// myObject.addEventListener(type, listener)
  ///
  /// // To be compatible with DOM EventTarget's removeEventListener, it accepts type and listener
  /// // parameters, where type can be only "message" type and listener can only be a JavaScript
  /// // function for myObject.
  /// myObject.removeEventListener(type, listener)
  ///```
  ///
  ///We start the communication between JavaScript and the app from the JavaScript side.
  ///In order to send message from the app to JavaScript, it needs to post a message from JavaScript first,
  ///so the app will have a [JavaScriptReplyProxy] object to respond. Example:
  ///
  ///```javascript
  /// // Web page (in JavaScript)
  /// myObject.onmessage = function(event) {
  ///   // prints "Got it!" when we receive the app's response.
  ///   console.log(event.data);
  /// }
  /// myObject.postMessage("I'm ready!");
  ///```
  ///
  ///```dart
  /// // Flutter App
  /// child: InAppWebView(
  ///   onWebViewCreated: (controller) async {
  ///     if (!Platform.isAndroid || await AndroidWebViewFeature.isFeatureSupported(AndroidWebViewFeature.WEB_MESSAGE_LISTENER)) {
  ///       await controller.addWebMessageListener(WebMessageListener(
  ///         jsObjectName: "myObject",
  ///         onPostMessage: (message, sourceOrigin, isMainFrame, replyProxy) {
  ///           // do something about message, sourceOrigin and isMainFrame.
  ///           replyProxy.postMessage("Got it!");
  ///         },
  ///       ));
  ///     }
  ///     await controller.loadUrl(urlRequest: URLRequest(url: Uri.parse("https://www.example.com")));
  ///   },
  /// ),
  ///```
  ///
  ///**NOTE for Android**: This method should only be called if [AndroidWebViewFeature.isFeatureSupported] returns `true` for [AndroidWebViewFeature.WEB_MESSAGE_LISTENER].
  ///
  ///**NOTE for iOS**: This is implemented using Javascript.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebViewCompat.WebMessageListener](https://developer.android.com/reference/androidx/webkit/WebViewCompat#addWebMessageListener(android.webkit.WebView,%20java.lang.String,%20java.util.Set%3Cjava.lang.String%3E,%20androidx.webkit.WebViewCompat.WebMessageListener)))
  ///- iOS
  Future<void> addWebMessageListener(
      WebMessageListener webMessageListener) async {
    assert(
        !_webMessageListenerObjNames.contains(webMessageListener.jsObjectName),
        "jsObjectName ${webMessageListener.jsObjectName} was already added.");
    _webMessageListenerObjNames.add(webMessageListener.jsObjectName);

    Map<String, dynamic> args = <String, dynamic>{};
    args.putIfAbsent('webMessageListener', () => webMessageListener.toMap());
    await _channel.invokeMethod('addWebMessageListener', args);
  }

  ///Returns `true` if the webpage can scroll vertically, otherwise `false`.
  Future<bool> canScrollVertically() async {
    Map<String, dynamic> args = <String, dynamic>{};
    return await _channel.invokeMethod('canScrollVertically', args);
  }

  ///Returns `true` if the webpage can scroll horizontally, otherwise `false`.
  Future<bool> canScrollHorizontally() async {
    Map<String, dynamic> args = <String, dynamic>{};
    return await _channel.invokeMethod('canScrollHorizontally', args);
  }

  ///Gets the default user agent.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebSettings.getDefaultUserAgent](https://developer.android.com/reference/android/webkit/WebSettings#getDefaultUserAgent(android.content.Context)))
  ///- iOS
  static Future<String> getDefaultUserAgent() async {
    Map<String, dynamic> args = <String, dynamic>{};
    return await _staticChannel.invokeMethod('getDefaultUserAgent', args);
  }

  ///Clears the client certificate preferences stored in response to proceeding/cancelling client cert requests.
  ///Note that WebView automatically clears these preferences when the system keychain is updated.
  ///The preferences are shared by all the WebViews that are created by the embedder application.
  ///
  ///**NOTE**: On iOS certificate-based credentials are never stored permanently.
  ///
  ///**NOTE**: available on Android 21+.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebView.clearClientCertPreferences](https://developer.android.com/reference/android/webkit/WebView#clearClientCertPreferences(java.lang.Runnable)))
  static Future<void> clearClientCertPreferences() async {
    Map<String, dynamic> args = <String, dynamic>{};
    await _staticChannel.invokeMethod('clearClientCertPreferences', args);
  }

  ///Returns a URL pointing to the privacy policy for Safe Browsing reporting.
  ///
  ///This method should only be called if [AndroidWebViewFeature.isFeatureSupported] returns `true` for [AndroidWebViewFeature.SAFE_BROWSING_PRIVACY_POLICY_URL].
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebViewCompat.getSafeBrowsingPrivacyPolicyUrl](https://developer.android.com/reference/androidx/webkit/WebViewCompat#getSafeBrowsingPrivacyPolicyUrl()))
  static Future<Uri?> getSafeBrowsingPrivacyPolicyUrl() async {
    Map<String, dynamic> args = <String, dynamic>{};
    String? url = await _staticChannel.invokeMethod(
        'getSafeBrowsingPrivacyPolicyUrl', args);
    return url != null ? Uri.parse(url) : null;
  }

  ///Sets the list of hosts (domain names/IP addresses) that are exempt from SafeBrowsing checks. The list is global for all the WebViews.
  ///
  /// Each rule should take one of these:
  ///| Rule | Example | Matches Subdomain |
  ///| -- | -- | -- |
  ///| HOSTNAME | example.com | Yes |
  ///| .HOSTNAME | .example.com | No |
  ///| IPV4_LITERAL | 192.168.1.1 | No |
  ///| IPV6_LITERAL_WITH_BRACKETS | [10:20:30:40:50:60:70:80] | No |
  ///
  ///All other rules, including wildcards, are invalid. The correct syntax for hosts is defined by [RFC 3986](https://tools.ietf.org/html/rfc3986#section-3.2.2).
  ///
  ///This method should only be called if [AndroidWebViewFeature.isFeatureSupported] returns `true` for [AndroidWebViewFeature.SAFE_BROWSING_ALLOWLIST].
  ///
  ///[hosts] represents the list of hosts. This value must never be `null`.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebViewCompat.setSafeBrowsingAllowlist](https://developer.android.com/reference/androidx/webkit/WebViewCompat#setSafeBrowsingAllowlist(java.util.Set%3Cjava.lang.String%3E,%20android.webkit.ValueCallback%3Cjava.lang.Boolean%3E)))
  static Future<bool> setSafeBrowsingWhitelist(
      {required List<String> hosts}) async {
    Map<String, dynamic> args = <String, dynamic>{};
    args.putIfAbsent('hosts', () => hosts);
    return await _staticChannel.invokeMethod('setSafeBrowsingWhitelist', args);
  }

  ///If WebView has already been loaded into the current process this method will return the package that was used to load it.
  ///Otherwise, the package that would be used if the WebView was loaded right now will be returned;
  ///this does not cause WebView to be loaded, so this information may become outdated at any time.
  ///The WebView package changes either when the current WebView package is updated, disabled, or uninstalled.
  ///It can also be changed through a Developer Setting. If the WebView package changes, any app process that
  ///has loaded WebView will be killed.
  ///The next time the app starts and loads WebView it will use the new WebView package instead.
  ///
  ///**NOTE**: available only on Android 21+.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebViewCompat.getCurrentWebViewPackage](https://developer.android.com/reference/androidx/webkit/WebViewCompat#getCurrentWebViewPackage(android.content.Context)))
  static Future<WebViewPackageInfo?> getCurrentWebViewPackage() async {
    Map<String, dynamic> args = <String, dynamic>{};
    Map<String, dynamic>? packageInfo =
    (await _staticChannel.invokeMethod('getCurrentWebViewPackage', args))
        ?.cast<String, dynamic>();
    return WebViewPackageInfo.fromMap(packageInfo);
  }

  ///Enables debugging of web contents (HTML / CSS / JavaScript) loaded into any WebViews of this application.
  ///This flag can be enabled in order to facilitate debugging of web layouts and JavaScript code running inside WebViews.
  ///Please refer to WebView documentation for the debugging guide. The default is `false`.
  ///
  ///[debuggingEnabled] whether to enable web contents debugging.
  ///
  ///**NOTE**: available only on Android 19+.
  ///
  ///**Supported Platforms/Implementations**:
  ///- Android native WebView ([Official API - WebView.setWebContentsDebuggingEnabled](https://developer.android.com/reference/android/webkit/WebView#setWebContentsDebuggingEnabled(boolean)))
  static Future<void> setWebContentsDebuggingEnabled(
      bool debuggingEnabled) async {
    Map<String, dynamic> args = <String, dynamic>{};
    args.putIfAbsent('debuggingEnabled', () => debuggingEnabled);
    return await _staticChannel.invokeMethod(
        'setWebContentsDebuggingEnabled', args);
  }

  ///Returns a Boolean value that indicates whether WebKit natively supports resources with the specified URL scheme.
  ///
  ///[urlScheme] represents the URL scheme associated with the resource.
  ///
  ///**NOTE**: available only on iOS 11.0+.
  ///
  ///**Supported Platforms/Implementations**:
  ///- iOS ([Official API - WKWebView.handlesURLScheme](https://developer.apple.com/documentation/webkit/wkwebview/2875370-handlesurlscheme))
  static Future<bool> handlesURLScheme(String urlScheme) async {
    Map<String, dynamic> args = <String, dynamic>{};
    args.putIfAbsent('urlScheme', () => urlScheme);
    return await _staticChannel.invokeMethod('handlesURLScheme', args);
  }
}