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feat(v2): improve seo (#1588)

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* feat(v2): improve seo

- Add doc specific seo information
- Add twitter meta tags to seo in theme Layout

* Cannot use svg in SEO image

* Add docs about SEO

* add site default image for seo

* Resolve PR discussion

* Add `image` to config optional fields

* Use theme config instead of root config for image, rename in front matter

* Use absolute url for image (wont work on preview)

* update docs for frontmatter field for seo

* refactor

* pages seo

* fix

* nits again'
This commit is contained in:
Wei Gao 2019-07-13 00:23:49 +08:00 • committed by Endi
parent 684a2461bd
commit 2491c53ba9
6 changed files with 99 additions and 11 deletions
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41
packages/docusaurus-theme-classic/src/theme/Layout/index.js
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@ -15,19 +15,48 @@ import Footer from '@theme/Footer';
import './styles.css';
function Layout(props) {
const context = useDocusaurusContext();
const {siteConfig = {}} = context;
const {favicon, tagline, title: defaultTitle} = siteConfig;
const {children, title, noFooter, description} = props;
const {siteConfig = {}} = useDocusaurusContext();
const {
favicon,
tagline,
title: defaultTitle,
themeConfig: {image: defaultImage},
url: siteUrl,
} = siteConfig;
const {
children,
title,
noFooter,
description,
image,
keywords,
permalink,
} = props;
const metaTitle = title || `${defaultTitle} · ${tagline}`;
const metaImage = `${siteUrl}${withBaseUrl(image || defaultImage)}`;
return (
<React.Fragment>
<Head defaultTitle={`${defaultTitle} · ${tagline}`}>
{title && <title>{`${title} · ${tagline}`}</title>}
<Head>
{metaTitle && <title>{metaTitle}</title>}
{metaTitle && <meta property="og:title" content={metaTitle} />}
{favicon && <link rel="shortcut icon" href={withBaseUrl(favicon)} />}
{description && <meta name="description" content={description} />}
{description && (
<meta property="og:description" content={description} />
)}
{keywords && keywords.length && (
<meta property="keywords" content={keywords} />
)}
{metaImage && <meta property="og:image" content={metaImage} />}
{metaImage && <meta property="twitter:image" content={metaImage} />}
{metaImage && (
<meta name="twitter:image:alt" content={`Image for ${metaTitle}`} />
)}
{permalink && <meta property="og:url" content={siteUrl + permalink} />}
<meta
name="twitter:card"
content={image || favicon ? 'summary_large_image' : 'summary'}
/>
</Head>
<Navbar />
{children}