145 lines
5.3 KiB
Dart
145 lines
5.3 KiB
Dart
import 'package:cached_network_image/cached_network_image.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter_html/flutter_html.dart';
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import 'package:pilipala/plugin/pl_gallery/hero_dialog_route.dart';
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import 'package:pilipala/plugin/pl_gallery/interactiveviewer_gallery.dart';
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import 'package:pilipala/utils/highlight.dart';
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// ignore: must_be_immutable
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class HtmlRender extends StatelessWidget {
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const HtmlRender({
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this.htmlContent,
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this.imgCount,
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this.imgList,
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super.key,
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});
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final String? htmlContent;
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final int? imgCount;
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final List<String>? imgList;
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@override
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Widget build(BuildContext context) {
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return Html(
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data: htmlContent,
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onLinkTap: (String? url, Map<String, String> buildContext, attributes) {},
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extensions: [
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TagExtension(
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tagsToExtend: <String>{'pre'},
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builder: (ExtensionContext extensionContext) {
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final Map<String, dynamic> attributes = extensionContext.attributes;
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final String lang = attributes['data-lang'] as String;
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final String code = attributes['codecontent'] as String;
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List<String> selectedLanguages = [lang.split('@').first];
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TextSpan? result = highlightExistingText(code, selectedLanguages);
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if (result == null) {
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return const Center(child: Text('代码块渲染失败'));
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}
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return SelectableText.rich(result);
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},
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),
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TagExtension(
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tagsToExtend: <String>{'img'},
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builder: (ExtensionContext extensionContext) {
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try {
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final Map<String, dynamic> attributes =
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extensionContext.attributes;
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final List<dynamic> key = attributes.keys.toList();
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String imgUrl = key.contains('src')
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? attributes['src'] as String
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: attributes['data-src'] as String;
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if (imgUrl.startsWith('//')) {
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imgUrl = 'https:$imgUrl';
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}
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if (imgUrl.startsWith('http://')) {
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imgUrl = imgUrl.replaceAll('http://', 'https://');
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}
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imgUrl = imgUrl.contains('@') ? imgUrl.split('@').first : imgUrl;
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final bool isEmote = imgUrl.contains('/emote/');
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final bool isMall = imgUrl.contains('/mall/');
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if (isMall) {
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return const SizedBox();
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}
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return InkWell(
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onTap: () {
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Navigator.of(context).push(
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HeroDialogRoute<void>(
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builder: (BuildContext context) =>
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InteractiveviewerGallery(
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sources: imgList ?? [imgUrl],
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initIndex: imgList?.indexOf(imgUrl) ?? 0,
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itemBuilder: (
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BuildContext context,
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int index,
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bool isFocus,
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bool enablePageView,
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) {
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return GestureDetector(
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behavior: HitTestBehavior.opaque,
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onTap: () {
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if (enablePageView) {
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Navigator.of(context).pop();
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}
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},
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child: Center(
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child: Hero(
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tag: imgList?[index] ?? imgUrl,
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child: CachedNetworkImage(
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fadeInDuration:
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const Duration(milliseconds: 0),
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imageUrl: imgList?[index] ?? imgUrl,
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fit: BoxFit.contain,
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),
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),
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),
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);
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},
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onPageChanged: (int pageIndex) {},
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),
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),
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);
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},
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child: CachedNetworkImage(imageUrl: imgUrl),
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);
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// return NetworkImgLayer(
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// width: isEmote ? 22 : Get.size.width - 24,
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// height: isEmote ? 22 : 200,
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// src: imgUrl,
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// );
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} catch (err) {
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return const SizedBox();
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}
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},
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),
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],
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style: {
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'html': Style(
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fontSize: FontSize.large,
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lineHeight: LineHeight.percent(140),
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),
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'body': Style(margin: Margins.zero, padding: HtmlPaddings.zero),
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'a': Style(
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color: Theme.of(context).colorScheme.primary,
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textDecoration: TextDecoration.none,
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),
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'p': Style(
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margin: Margins.only(bottom: 10),
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),
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'span': Style(
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fontSize: FontSize.large,
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height: Height(1.65),
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),
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'div': Style(height: Height.auto()),
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'li > p': Style(
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display: Display.inline,
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),
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'li': Style(
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padding: HtmlPaddings.only(bottom: 4),
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textAlign: TextAlign.justify,
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),
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'img': Style(margin: Margins.only(top: 4, bottom: 4)),
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},
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);
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}
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}
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