beta version

demo/playground/hmr-playground.tsx

@@ -22,7 +22,7 @@ const swagger = window.location.search.indexOf('swagger') > -1; // compatibility
 const specUrl = swagger ? 'swagger.yaml' : big ? 'big-openapi.json' : 'openapi.yaml';
 
 let store;
-const options: RedocRawOptions = { nativeScrollbars: false };
+const options: RedocRawOptions = { nativeScrollbars: false, parentElementSelector: '#redoc-container' };
 
 async function init() {
   const spec = await loadAndBundleSpec(specUrl);

src/components/Redoc/Redoc.tsx

@@ -41,7 +41,7 @@ export class Redoc extends React.Component<RedocProps> {
       <ThemeProvider theme={options.theme}>
         <StoreProvider value={this.props.store}>
           <OptionsProvider value={options}>
-            <RedocWrap className="redoc-wrap">
+            <RedocWrap ref={menu.scroll.setRedocElement} className="redoc-wrap">
               <StickyResponsiveSidebar menu={menu} className="menu-content">
                 <ApiLogo info={spec.info} />
                 {(!options.disableSearch && (
@@ -58,8 +58,8 @@ export class Redoc extends React.Component<RedocProps> {
               <ApiContentWrap className="api-content">
                 <ApiInfo store={store} />
                 <ContentItems items={menu.items as any} />
+                <BackgroundStub />
               </ApiContentWrap>
-              <BackgroundStub />
             </RedocWrap>
           </OptionsProvider>
         </StoreProvider>

src/components/Redoc/styled.elements.tsx

@@ -8,7 +8,6 @@ export const RedocWrap = styled.div`
   line-height: ${theme.typography.lineHeight};
   color: ${theme.colors.text.primary};
   display: flex;
-  position: relative;
   text-align: left;
 
   -webkit-font-smoothing: ${theme.typography.smoothing};
@@ -43,10 +42,11 @@ export const BackgroundStub = styled.div`
   top: 0;
   bottom: 0;
   right: 0;
+  z-index: -1;
   width: ${({ theme }) => {
     if (theme.rightPanel.width.endsWith('%')) {
       const percents = parseInt(theme.rightPanel.width, 10);
-      return `calc((100% - ${theme.menu.width}) * ${percents / 100})`;
+      return `calc(100% * ${percents / 100})`;
     } else {
       return theme.rightPanel.width;
     }

src/components/StickySidebar/StickyResponsiveSidebar.tsx

@@ -1,5 +1,6 @@
 import { observer } from 'mobx-react';
 import * as React from 'react';
+import { createPortal } from 'react-dom';
 
 import { MenuStore } from '../../services/MenuStore';
 import { RedocNormalizedOptions, RedocRawOptions } from '../../services/RedocNormalizedOptions';
@@ -66,9 +67,10 @@ const FloatingButton = styled.div`
   `};
 
   bottom: 44px;
+  box-sizing: content-box;
 
-  width: 60px;
   height: 60px;
+  width: 20px;
   padding: 0 20px;
 
   @media print {
@@ -76,11 +78,101 @@ const FloatingButton = styled.div`
   }
 `;
 
+
+export interface FloatingButtonProps {
+  onClick?: () => void;
+  parentElement: Element;
+}
+
+@observer
+class PortaledFloatingButton extends React.Component<FloatingButtonProps> {
+  portalRoot: HTMLElement;
+  floatingButtonRef: HTMLElement;
+
+  constructor(props) {
+    super(props);
+    this.portalRoot = document.createElement('div');
+    this.portalRoot.classList.add('portalled-element');
+  }
+
+
+
+  private setFloatingButtonRef = (node) => {
+    this.floatingButtonRef = node;
+  }
+
+  componentWillUnmount() {
+    document.body.removeChild(this.portalRoot);
+  }
+
+  componentDidMount() {
+    const { parentElement } = this.props;
+
+    document.body.appendChild(this.portalRoot);
+    this.floatingButtonRef.style.top = `${parentElement.getBoundingClientRect().bottom - 88}px`;
+    this.floatingButtonRef.style.left = `${parentElement.getBoundingClientRect().right - 88}px`;
+  }
+
+  render() {
+    return createPortal(
+      <FloatingButton ref={this.setFloatingButtonRef} {...this.props} />,
+      this.portalRoot,
+    );
+  }
+}
+
+@observer
+class PortaledStickySidebar extends React.Component<FloatingButtonProps> {
+  portalRoot: HTMLElement;
+  stickySidebarRef: HTMLElement;
+
+  constructor(props) {
+    super(props);
+    this.portalRoot = document.createElement('div');
+    this.portalRoot.classList.add('portalled-element');
+  }
+
+  componentWillUnmount() {
+    document.body.removeChild(this.portalRoot);
+  }
+
+  private setStickySidebarRef = (node) => {
+    this.stickySidebarRef = node;
+  }
+
+  componentDidMount() {
+    const { parentElement } = this.props;
+
+    document.body.appendChild(this.portalRoot);
+    this.stickySidebarRef.style.top = `${parentElement.getBoundingClientRect().top}px`;
+    this.stickySidebarRef.style.left = `${parentElement.getBoundingClientRect().left}px`;
+    this.stickySidebarRef.style.width = `${parentElement.clientWidth}px`;
+    this.stickySidebarRef.style.zIndex = '99';
+  }
+
+  render() {
+    return createPortal(
+      <StyledStickySidebar ref={this.setStickySidebarRef} {...this.props} />,
+      this.portalRoot,
+    );
+  }
+}
+
 @observer
 export class StickyResponsiveSidebar extends React.Component<StickySidebarProps> {
   stickyElement: Element;
+  portalRoot: Element;
+
+  constructor(props) {
+    super(props);
+    this.portalRoot = document.createElement('div');
+    this.portalRoot.classList.add('portalled-element');
+
+  }
 
   componentDidMount() {
+    document.body.appendChild(this.portalRoot);
+
     if (stickyfill) {
       stickyfill.add(this.stickyElement);
     }
@@ -102,37 +194,52 @@ export class StickyResponsiveSidebar extends React.Component<StickySidebarProps>
     return top + 'px';
   }
 
-  render() {
-    const open = this.props.menu.sideBarOpened;
-
-    const style = options => {
+  getSidebarStyles = options => {
+    if (options.parentElement instanceof Element) {
+      return {
+        height: options.parentElement.offsetHeight,
+      };
+    } else {
       const top = this.getScrollYOffset(options);
       return {
         top,
         height: `calc(100vh - ${top})`,
       };
-    };
+    }
+  }
+
+  setStickyElementRef = el => {
+    this.stickyElement = el as any;
+  }
+
+  render() {
+    const open = this.props.menu.sideBarOpened;
 
     return (
       <OptionsContext.Consumer>
-        {options => (
-          <>
-            <StyledStickySidebar
-              open={open}
-              className={this.props.className}
-              style={style(options)}
-              // tslint:disable-next-line
-              ref={el => {
-                this.stickyElement = el as any;
-              }}
-            >
-              {this.props.children}
-            </StyledStickySidebar>
-            <FloatingButton onClick={this.toggleNavMenu}>
-              <AnimatedChevronButton open={open} />
-            </FloatingButton>
-          </>
-        )}
+        {options => {
+          const CondFloating = options.parentElement ? PortaledFloatingButton :
+            FloatingButton;
+          const CondSidebar = options.parentElement && window.innerWidth < 800 ? PortaledStickySidebar :
+            StyledStickySidebar;
+
+          return (
+            <>
+              <CondSidebar
+                open={open}
+                className={this.props.className}
+                style={this.getSidebarStyles(options)}
+                ref={this.setStickyElementRef}
+                parentElement={options.parentElement}
+              >
+                {this.props.children}
+              </CondSidebar>
+              <CondFloating onClick={this.toggleNavMenu} parentElement={options.parentElement}>
+                <AnimatedChevronButton open={open} />
+              </CondFloating>
+            </>
+          )
+        }}
       </OptionsContext.Consumer>
     );
   }

src/services/RedocNormalizedOptions.ts

@@ -20,6 +20,7 @@ export interface RedocRawOptions {
   disableSearch?: boolean | string;
   onlyRequiredInSamples?: boolean | string;
   showExtensions?: boolean | string | string[];
+  parentElementSelector?: string;
 
   unstable_ignoreMimeParameters?: boolean;
 
@@ -106,6 +107,22 @@ export class RedocNormalizedOptions {
     return value;
   }
 
+  static normalizeParentElementSelector(value: RedocRawOptions['parentElementSelector']): Element | null {
+    if (typeof value === 'string') {
+      try {
+        return querySelector(value);
+      } catch (e) {
+        console.warn(
+          'Invalid selector for parent element.',
+        );
+      }
+
+      return null;
+    }
+
+    return null;
+  }
+
   theme: ResolvedThemeInterface;
   scrollYOffset: () => number;
   hideHostname: boolean;
@@ -120,6 +137,7 @@ export class RedocNormalizedOptions {
   disableSearch: boolean;
   onlyRequiredInSamples: boolean;
   showExtensions: boolean | string[];
+  parentElement: Element | null;
 
   /* tslint:disable-next-line */
   unstable_ignoreMimeParameters: boolean;
@@ -147,6 +165,7 @@ export class RedocNormalizedOptions {
     this.disableSearch = argValueToBoolean(raw.disableSearch);
     this.onlyRequiredInSamples = argValueToBoolean(raw.onlyRequiredInSamples);
     this.showExtensions = RedocNormalizedOptions.normalizeShowExtensions(raw.showExtensions);
+    this.parentElement = RedocNormalizedOptions.normalizeParentElementSelector(raw.parentElementSelector);
 
     this.unstable_ignoreMimeParameters = argValueToBoolean(raw.unstable_ignoreMimeParameters);
 

src/services/ScrollService.ts

@@ -7,11 +7,13 @@ import { RedocNormalizedOptions } from './RedocNormalizedOptions';
 const EVENT = 'scroll';
 
 export class ScrollService {
-  private _scrollParent: Window | HTMLElement | undefined;
+  private _scrollParent: Window | HTMLElement | Element | null | undefined;
   private _emiter: EventEmitter;
   private _prevOffsetY: number = 0;
+  private _redocContainer: Window | HTMLElement | Element | null | undefined;
   constructor(private options: RedocNormalizedOptions) {
-    this._scrollParent = IS_BROWSER ? window : undefined;
+    const browserContainer = options.parentElement || window;
+    this._scrollParent = IS_BROWSER ? browserContainer : undefined;
     this._emiter = new EventEmitter();
     this.bind();
   }
@@ -31,8 +33,8 @@ export class ScrollService {
   }
 
   scrollY(): number {
-    if (typeof HTMLElement !== 'undefined' && this._scrollParent instanceof HTMLElement) {
-      return this._scrollParent.scrollTop;
+    if (typeof HTMLElement !== 'undefined' && this._scrollParent instanceof Element && this._redocContainer instanceof Element) {
+      return this._scrollParent.getBoundingClientRect().top - this._redocContainer.getBoundingClientRect().top;
     } else if (this._scrollParent !== undefined) {
       return (this._scrollParent as Window).pageYOffset;
     } else {
@@ -44,6 +46,10 @@ export class ScrollService {
     if (el === null) {
       return;
     }
+    if (this._scrollParent instanceof Element) {
+      return el.getBoundingClientRect().top - this._scrollParent.getBoundingClientRect().top > this.options.scrollYOffset();
+    }
+
     return el.getBoundingClientRect().top > this.options.scrollYOffset();
   }
 
@@ -51,6 +57,11 @@ export class ScrollService {
     if (el === null) {
       return;
     }
+
+    if (this._scrollParent instanceof Element) {
+      const topDistance = el.getBoundingClientRect().top - this._scrollParent.getBoundingClientRect().top;
+      return (topDistance > 0 ? Math.floor(topDistance) : Math.ceil(topDistance)) <= this.options.scrollYOffset();
+    }
     const top = el.getBoundingClientRect().top;
     return (top > 0 ? Math.floor(top) : Math.ceil(top)) <= this.options.scrollYOffset();
   }
@@ -76,6 +87,11 @@ export class ScrollService {
     this.scrollIntoView(element);
   }
 
+  @bind
+  setRedocElement(node: HTMLDivElement) {
+    this._redocContainer = node;
+  }
+
   @bind
   @Throttle(100)
   handleScroll() {