PiliPlus/lib/common/widgets/html_render.dart

import 'package:PiliPalaX/pages/preview/view.dart';
import 'package:flutter/material.dart';
import 'package:flutter_html/flutter_html.dart';
import 'network_img_layer.dart';

Widget htmlRender({
  required BuildContext context,
  String? htmlContent,
  int? imgCount,
  List<String>? imgList,
  required double constrainedWidth,
}) {
  return SelectionArea(
      child: Html(
    data: htmlContent,
    onLinkTap: (String? url, Map<String, String> buildContext, attributes) {},
    extensions: [
      TagExtension(
        tagsToExtend: <String>{'img'},
        builder: (ExtensionContext extensionContext) {
          try {
            final Map<String, dynamic> attributes = extensionContext.attributes;
            final List<dynamic> key = attributes.keys.toList();
            String imgUrl = key.contains('src')
                ? attributes['src'] as String
                : attributes['data-src'] as String;
            if (imgUrl.startsWith('//')) {
              imgUrl = 'https:$imgUrl';
            }
            if (imgUrl.startsWith('http://')) {
              imgUrl = imgUrl.replaceAll('http://', 'https://');
            }
            imgUrl = imgUrl.contains('@') ? imgUrl.split('@').first : imgUrl;
            final bool isEmote = imgUrl.contains('/emote/');
            final bool isMall = imgUrl.contains('/mall/');
            if (isMall) {
              return const SizedBox();
            }
            // bool inTable =
            //     extensionContext.element!.previousElementSibling == null ||
            //         extensionContext.element!.nextElementSibling == null;
            // imgUrl = Utils().imageUrl(imgUrl!);
            // return Image.network(
            //   imgUrl,
            //   width: isEmote ? 22 : null,
            //   height: isEmote ? 22 : null,
            // );
            return GestureDetector(
              onTap: () {
                showDialog(
                  useSafeArea: false,
                  context: context,
                  builder: (context) {
                    return ImagePreview(
                      initialPage: 0,
                      imgList: [imgUrl],
                    );
                  },
                );
              },
              child: NetworkImgLayer(
                width: isEmote ? 22 : constrainedWidth,
                height: isEmote ? 22 : 200,
                src: imgUrl,
                ignoreHeight: !isEmote,
              ),
            );
          } catch (err) {
            return const SizedBox();
          }
        },
      ),
    ],
    style: {
      'html': Style(
        fontSize: FontSize.large,
        lineHeight: LineHeight.percent(160),
        letterSpacing: 0.3,
      ),
      // 'br': Style(margin: Margins.zero, padding: HtmlPaddings.zero),
      'body': Style(margin: Margins.zero, padding: HtmlPaddings.zero),
      'a': Style(
        color: Theme.of(context).colorScheme.primary,
        textDecoration: TextDecoration.none,
      ),
      'br': Style(
        lineHeight: LineHeight.percent(-1),
      ),
      'p': Style(
        margin: Margins.only(bottom: 4),
        // margin: Margins.zero,
      ),
      'span': Style(
        fontSize: FontSize.medium,
        height: Height(1.8),
      ),
      'div': Style(height: Height.auto()),
      'li > p': Style(
        display: Display.inline,
      ),
      'li': Style(
        padding: HtmlPaddings.only(bottom: 4),
        textAlign: TextAlign.justify,
      ),
      'img': Style(margin: Margins.only(top: 4, bottom: 4)),
      'h1,h2': Style(
        fontSize: FontSize.xLarge,
        fontWeight: FontWeight.bold,
        margin: Margins.only(bottom: 8),
      ),
      'h3,h4,h5': Style(
        fontSize: FontSize.large,
        fontWeight: FontWeight.bold,
        margin: Margins.only(bottom: 4),
      ),
      'figcaption': Style(
        fontSize: FontSize.medium,
        textAlign: TextAlign.center,
        // margin: Margins.only(top: 4),
      ),
      'strong': Style(fontWeight: FontWeight.bold),
      'figure': Style(
        margin: Margins.zero,
      ),
    },
  ));
}