feat(v2): allow hiding docs table of contents (#2012)

* feat(v2): allow hiding docs table of contents

* move to frontmatter

packages/docusaurus-plugin-content-docs/src/types.ts

@@ -94,7 +94,6 @@ export interface MetadataRaw extends OrderMetadata {
   editUrl?: string;
   lastUpdatedAt?: number;
   lastUpdatedBy?: string;
-  hide_title?: boolean;
   [key: string]: any;
 }
 

packages/docusaurus-theme-classic/src/theme/DocItem/index.js

@@ -63,6 +63,12 @@ function DocItem(props) {
     lastUpdatedBy,
     keywords,
   } = metadata;
+  const {
+    frontMatter: {
+      hide_title: hideTitle,
+      hide_table_of_contents: hideTableOfContents,
+    },
+  } = DocContent;
 
   const metaImageUrl = siteUrl + useBaseUrl(metaImage);
 
@@ -90,7 +96,7 @@ function DocItem(props) {
             <div className="col">
               <div className={styles.docItemContainer}>
                 <article>
-                  {!metadata.hide_title && (
+                  {!hideTitle && (
                     <header>
                       <h1 className={styles.docTitle}>{metadata.title}</h1>
                     </header>
@@ -172,7 +178,9 @@ function DocItem(props) {
                 </div>
               </div>
             </div>
-            {DocContent.rightToc && <DocTOC headings={DocContent.rightToc} />}
+            {!hideTableOfContents && DocContent.rightToc && (
+              <DocTOC headings={DocContent.rightToc} />
+            )}
           </div>
         </div>
       </div>

packages/docusaurus-theme-classic/src/theme/DocItem/styles.module.css

@@ -20,7 +20,6 @@
 .docItemContainer {
   margin: 0 auto;
   padding: 0 0.5rem;
-  max-width: 45em;
 }
 
 .tableOfContents {

website/docs/markdown-features.mdx

@@ -99,6 +99,7 @@ Documents use the following markdown header fields that are enclosed by a line `
 - `id`: A unique document id. If this field is not present, the document's `id` will default to its file name (without the extension).
 - `title`: The title of your document. If this field is not present, the document's `title` will default to its `id`.
 - `hide_title`: Whether to hide the title at the top of the doc. By default it is `false`.
+- `hide_table_of_contents`: Whether to hide the table of contents to the right. By default it is `false`.
 - `sidebar_label`: The text shown in the document sidebar and in the next/previous button for this document. If this field is not present, the document's `sidebar_label` will default to its `title`.
 - `custom_edit_url`: The URL for editing this document. If this field is not present, the document's edit URL will fall back to `editUrl` from options fields passed to `docusaurus-plugin-content-docs`.
 - `keywords`: Keywords meta tag for the document page, for search engines.
@@ -112,6 +113,7 @@ Example:
 id: doc-markdown
 title: Markdown Features
 hide_title: false
+hide_table_of_contents: false
 sidebar_label: Markdown :)
 custom_edit_url: https://github.com/facebook/docusaurus/edit/master/docs/api-doc-markdown.md
 description: How do I find you when I cannot solve this problem