initial

lib/packages/html_view/html_view.dart

@@ -0,0 +1,50 @@
+import 'dart:convert';
+
+import 'package:flutter/cupertino.dart';
+import 'package:hiddingsel_app/services/environment.dart';
+import 'package:webview_flutter/webview_flutter.dart';
+
+class HtmlView extends StatefulWidget {
+  final String _html;
+  final String html;
+
+  HtmlView(this.html)
+      : _html = Uri.dataFromString(html, mimeType: 'text/html', encoding: utf8)
+      .toString();
+
+  @override
+  State<StatefulWidget> createState() => _HtmlViewState();
+}
+
+class _HtmlViewState extends State<HtmlView> {
+
+  double? _height;
+
+  @override
+  Widget build(BuildContext context) {
+    WebViewController wbController = WebViewController()
+      ..enableZoom(true)
+      ..setJavaScriptMode(JavaScriptMode.unrestricted);
+    wbController.setNavigationDelegate(
+        NavigationDelegate(
+          onPageFinished: (String) async {
+            if (_height == null) {
+              var heightString = (await wbController
+                  .runJavaScriptReturningResult(
+                  'document.documentElement.scrollHeight;'));
+              setState(() {
+                _height = double.parse(heightString.toString());
+              });
+            }
+          }
+        ),
+      );
+    wbController.loadHtmlString(widget.html);
+    return SizedBox(
+      height: _height ?? 1,
+      child: WebViewWidget(
+        controller: wbController,
+      ),
+    );
+  }
+}