feat: new option menuToggle - fold active MenuItem if clicked (#963)

update: fold active MenuItem if clicked

README.md

@@ -244,6 +244,7 @@ You can use all of the following options with standalone version on <redoc> tag
 * `disableSearch` - disable search indexing and search box
 * `onlyRequiredInSamples` - shows only required fields in request samples.
 * `jsonSampleExpandLevel` - set the default expand level for JSON payload samples (responses and request body). Special value 'all' expands all levels. The default value is `2`.
+* `menuToggle` - if true clicking second time on expanded menu item will collapse it, default `false`
 * `theme` - ReDoc theme. Not documented yet. For details check source code: [theme.ts](https://github.com/Redocly/redoc/blob/master/src/theme.ts)
 
 ## Advanced usage of standalone version

src/components/SideMenu/SideMenu.tsx

@@ -2,13 +2,15 @@ import { observer } from 'mobx-react';
 import * as React from 'react';
 
 import { IMenuItem, MenuStore } from '../../services/MenuStore';
+import { OptionsContext } from '../OptionsProvider';
 import { MenuItems } from './MenuItems';
 
 import { PerfectScrollbarWrap } from '../../common-elements/perfect-scrollbar';
 import { RedocAttribution } from './styled.elements';
 
 @observer
 export class SideMenu extends React.Component<{ menu: MenuStore; className?: string }> {
+  static contextType = OptionsContext;
   private _updateScroll?: () => void;
 
   render() {
@@ -32,6 +34,10 @@ export class SideMenu extends React.Component<{ menu: MenuStore; className?: str
   }
 
   activate = (item: IMenuItem) => {
+    if (item && item.active && this.context.menuToggle) {
+      return item.expanded ? item.collapse() : item.expand();
+    }
+
     this.props.menu.activateAndScroll(item, true);
     setTimeout(() => {
       if (this._updateScroll) {

src/services/RedocNormalizedOptions.ts

@@ -22,6 +22,7 @@ export interface RedocRawOptions {
   onlyRequiredInSamples?: boolean | string;
   showExtensions?: boolean | string | string[];
   hideSingleRequestSampleTab?: boolean | string;
+  menuToggle?: boolean | string;
   jsonSampleExpandLevel?: number | string | 'all';
 
   unstable_ignoreMimeParameters?: boolean;
@@ -137,6 +138,7 @@ export class RedocNormalizedOptions {
   onlyRequiredInSamples: boolean;
   showExtensions: boolean | string[];
   hideSingleRequestSampleTab: boolean;
+  menuToggle: boolean;
   jsonSampleExpandLevel: number;
   enumSkipQuotes: boolean;
 
@@ -170,6 +172,7 @@ export class RedocNormalizedOptions {
     this.onlyRequiredInSamples = argValueToBoolean(raw.onlyRequiredInSamples);
     this.showExtensions = RedocNormalizedOptions.normalizeShowExtensions(raw.showExtensions);
     this.hideSingleRequestSampleTab = argValueToBoolean(raw.hideSingleRequestSampleTab);
+    this.menuToggle = argValueToBoolean(raw.menuToggle);
     this.jsonSampleExpandLevel = RedocNormalizedOptions.normalizeJsonSampleExpandLevel(
       raw.jsonSampleExpandLevel,
     );