src/shared/components/common/html-tags.tsx

   1 import { httpExternalPath } from "@utils/env";
   2 import { htmlToText } from "html-to-text";
   3 import { Component } from "inferno";
   4 import { Helmet } from "inferno-helmet";
   5 import { md } from "../../markdown";
   6 import { I18NextService } from "../../services";
   7
   8 interface HtmlTagsProps {
   9   title: string;
  10   path: string;
  11   description?: string;
  12   image?: string;
  13 }
  14
  15 /// Taken from https://metatags.io/
  16 export class HtmlTags extends Component<HtmlTagsProps, any> {
  17   render() {
  18     const url = httpExternalPath(this.props.path);
  19     const desc = this.props.description;
  20     const image = this.props.image;
  21
  22     return (
  23       <Helmet title={this.props.title}>
  24         <html lang={I18NextService.i18n.resolvedLanguage} />
  25
  26         {["title", "og:title", "twitter:title"].map(t => (
  27           <meta key={t} property={t} content={this.props.title} />
  28         ))}
  29         {["og:url", "twitter:url"].map(u => (
  30           <meta key={u} property={u} content={url} />
  31         ))}
  32
  33         {/* Open Graph / Facebook */}
  34         <meta property="og:type" content="website" />
  35
  36         {/* Twitter */}
  37         <meta property="twitter:card" content="summary_large_image" />
  38
  39         {/* Optional desc and images */}
  40         {["description", "og:description", "twitter:description"].map(
  41           n =>
  42             desc && (
  43               <meta
  44                 key={n}
  45                 name={n}
  46                 content={htmlToText(md.renderInline(desc))}
  47               />
  48             )
  49         )}
  50         {["og:image", "twitter:image"].map(
  51           p => image && <meta key={p} property={p} content={image} />
  52         )}
  53       </Helmet>
  54     );
  55   }
  56 }