feat(OverlayTrigger): allow renderProp pattern

package.json

@@ -76,8 +76,8 @@
     "invariant": "^2.2.4",
     "prop-types": "^15.7.2",
     "prop-types-extra": "^1.1.0",
-    "react-overlays": "^4.0.0",
-    "react-transition-group": "^4.0.0",
+    "react-overlays": "^4.1.0",
+    "react-transition-group": "^4.4.1",
     "uncontrollable": "^7.0.0",
     "warning": "^4.0.3"
   },

src/OverlayTrigger.tsx

@@ -5,7 +5,6 @@ import useTimeout from '@restart/hooks/useTimeout';
 import safeFindDOMNode from 'react-overlays/safeFindDOMNode';
 import warning from 'warning';
 import { useUncontrolledProp } from 'uncontrollable';
-import { Modifier } from 'react-overlays/esm/usePopper';
 import Overlay, { OverlayChildren, OverlayProps } from './Overlay';
 
 export type OverlayTriggerType = 'hover' | 'click' | 'focus';
@@ -16,9 +15,15 @@ export type OverlayInjectedProps = {
   onFocus?: (...args: any[]) => any;
 };
 
+export type OverlayTriggerRenderProps = OverlayInjectedProps & {
+  ref: React.Ref<any>;
+};
+
 export interface OverlayTriggerProps
   extends Omit<OverlayProps, 'children' | 'target'> {
-  children: React.ReactElement;
+  children:
+    | React.ReactElement
+    | ((props: OverlayTriggerRenderProps) => React.ReactNode);
   trigger?: OverlayTriggerType | OverlayTriggerType[];
   delay?: OverlayDelay;
   show?: boolean;
@@ -51,9 +56,9 @@ function normalizeDelay(delay?: OverlayDelay) {
 // for cases when the trigger is disabled and mouseOut/Over can cause flicker
 // moving from one child element to another.
 function handleMouseOverOut(
-  handler: (...args: any[]) => any,
+  handler: (...args: [React.MouseEvent, ...any[]]) => any,
   args: [React.MouseEvent, ...any[]],
-  relatedNative,
+  relatedNative: 'fromElement' | 'toElement',
 ) {
   const [e] = args;
   const target = e.currentTarget;
@@ -188,9 +193,10 @@ function OverlayTrigger({
 
   const delay = normalizeDelay(propsDelay);
 
-  const child = React.Children.only(children);
-
-  const { onFocus, onBlur, onClick } = child.props;
+  const { onFocus, onBlur, onClick } =
+    typeof children !== 'function'
+      ? React.Children.only(children).props
+      : ({} as any);
 
   const getTarget = useCallback(
     () => safeFindDOMNode(triggerNodeRef.current),
@@ -228,15 +234,15 @@ function OverlayTrigger({
   const handleFocus = useCallback(
     (...args: any[]) => {
       handleShow();
-      if (onFocus) onFocus(...args);
+      onFocus?.(...args);
     },
     [handleShow, onFocus],
   );
 
   const handleBlur = useCallback(
     (...args: any[]) => {
       handleHide();
-      if (onBlur) onBlur(...args);
+      onBlur?.(...args);
     },
     [handleHide, onBlur],
   );
@@ -263,34 +269,6 @@ function OverlayTrigger({
     [handleHide],
   );
 
-  // We add aria-describedby in the case where the overlay is a role="tooltip"
-  // for other cases describedby isn't appropriate (e.g. a popover with inputs) so we don't add it.
-  const ariaModifier: Modifier<'ariaDescribedBy', Record<string, unknown>> = {
-    name: 'ariaDescribedBy',
-    enabled: true,
-    phase: 'afterWrite',
-    effect: ({ state }) => {
-      return () => {
-        if ('removeAttribute' in state.elements.reference)
-          state.elements.reference.removeAttribute('aria-describedby');
-      };
-    },
-    fn: ({ state }) => {
-      const { popper, reference } = state.elements;
-
-      if (!show || !reference) return;
-
-      const role = popper.getAttribute('role') || '';
-      if (
-        popper.id &&
-        role.toLowerCase() === 'tooltip' &&
-        'setAttribute' in reference
-      ) {
-        reference.setAttribute('aria-describedby', popper.id);
-      }
-    },
-  };
-
   const triggers: string[] = trigger == null ? [] : [].concat(trigger as any);
   const triggerProps: any = {};
 
@@ -312,25 +290,23 @@ function OverlayTrigger({
     triggerProps.onMouseOut = handleMouseOut;
   }
 
-  // TODO: fix typing
-  // @ts-ignore
-  const modifiers = [ariaModifier].concat(popperConfig.modifiers || []);
   return (
     <>
-      <RefHolder ref={triggerNodeRef}>
-        {cloneElement(child as any, triggerProps)}
-      </RefHolder>
+      {typeof children === 'function' ? (
+        children({ ...triggerProps, ref: triggerNodeRef })
+      ) : (
+        <RefHolder ref={triggerNodeRef}>
+          {cloneElement(children as any, triggerProps)}
+        </RefHolder>
+      )}
       <Overlay
         {...props}
-        popperConfig={{
-          ...popperConfig,
-          modifiers,
-        }}
         show={show}
         onHide={handleHide}
-        target={getTarget as any}
-        placement={placement}
         flip={flip}
+        placement={placement}
+        popperConfig={popperConfig}
+        target={getTarget as any}
       >
         {overlay}
       </Overlay>

www/src/components/Heading.js

@@ -10,18 +10,7 @@ const styles = css`
     composes: __heading from global;
 
     position: relative;
-    pointer-events: none;
-
-    &:before {
-      display: block;
-      height: 6rem;
-      margin-top: -6rem;
-      visibility: hidden;
-      content: '';
-    }
-  }
-  .inner {
-    pointer-events: auto;
+    scroll-margin-top: 5rem;
   }
 `;
 
@@ -35,7 +24,7 @@ const Heading = ({ h, id, title, className, children, registerNode }) => {
   const H = `h${h}`;
   return (
     <H id={id} className={classNames(className, styles.heading)}>
-      <div className={styles.inner}>{children}</div>
+      {children}
     </H>
   );
 };

www/src/components/NavMain.js

@@ -32,8 +32,6 @@ const Banner = styled(Navbar).attrs({
   }
 
   @include media-breakpoint-up(md) {
-    position: sticky;
-    top: 0rem;
     z-index: 1040;
   }
 `;
@@ -51,7 +49,7 @@ const StyledNavbar = styled(Navbar).attrs({
 
   @include media-breakpoint-up(md) {
     position: sticky;
-    top: 4rem;
+    top: 0rem;
     z-index: 1040;
   }
 `;

www/src/components/SideNav.js

@@ -18,15 +18,17 @@ const MenuButton = styled(Button).attrs({ variant: 'link' })`
 const SidePanel = styled('div')`
   @import '../css/theme';
 
+  $top: 4rem;
+
   composes: d-flex flex-column from global;
 
   background-color: #f7f7f7;
 
   @include media-breakpoint-up(md) {
     position: sticky;
-    top: 4rem;
+    top: $top;
     z-index: 1000;
-    height: calc(100vh - 4rem);
+    height: calc(100vh - #{$top});
     background-color: #f7f7f7;
     border-right: 1px solid $divider;
   }

www/src/components/Toc.js

@@ -6,10 +6,12 @@ export const TocContext = React.createContext();
 const SidePanel = styled('div')`
   @import '../css/theme';
 
+  $top: 4rem;
+
   order: 2;
   position: sticky;
-  top: 4rem;
-  height: calc(100vh - 4rem);
+  top: $top;
+  height: calc(100vh - #{$top});
   padding-top: 1.5rem;
   padding-bottom: 1.5rem;
   font-size: 0.875rem;

www/src/examples/Overlays/Trigger.js

@@ -0,0 +1,15 @@
+const renderTooltip = (props) => (
+  <Tooltip id="button-tooltip" {...props}>
+    Simple tooltip
+  </Tooltip>
+);
+
+render(
+  <OverlayTrigger
+    placement="right"
+    delay={{ show: 250, hide: 400 }}
+    overlay={renderTooltip}
+  >
+    <Button variant="success">Hover me to see</Button>
+  </OverlayTrigger>,
+);

www/src/examples/Overlays/TriggerRenderProp.js

@@ -0,0 +1,21 @@
+render(
+  <OverlayTrigger
+    placement="bottom"
+    overlay={<Tooltip id="button-tooltip-2">Check out this avatar</Tooltip>}
+  >
+    {({ ref, ...triggerHandler }) => (
+      <Button
+        variant="light"
+        {...triggerHandler}
+        className="d-inline-flex align-items-center"
+      >
+        <Image
+          ref={ref}
+          roundedCircle
+          src="holder.js/20x20?text=J&bg=28a745&fg=FFF"
+        />
+        <span className="ml-1">Hover to see</span>
+      </Button>
+    )}
+  </OverlayTrigger>,
+);

www/src/pages/components/overlays.js

@@ -5,10 +5,12 @@ import { css } from 'astroturf';
 import LinkedHeading from '../../components/LinkedHeading';
 import ComponentApi from '../../components/ComponentApi';
 import ReactPlayground from '../../components/ReactPlayground';
+import Callout from '../../components/Callout';
 
 import Disabled from '../../examples/Overlays/Disabled';
 import Overlay from '../../examples/Overlays/Overlay';
-import OverlayTrigger from '../../examples/Overlays/OverlayTrigger';
+import OverlayTrigger from '../../examples/Overlays/Trigger';
+import TriggerRenderProp from '../../examples/Overlays/TriggerRenderProp';
 import PopoverBasic from '../../examples/Overlays/PopoverBasic';
 import PopoverContained from '../../examples/Overlays/PopoverContained';
 import PopoverPositioned from '../../examples/Overlays/PopoverPositioned';
@@ -91,7 +93,7 @@ export default withLayout(function TooltipSection({ data }) {
       </p>
       <ReactPlayground codeText={Overlay} />
 
-      <LinkedHeading h="3" id="overlay-trigger">
+      <LinkedHeading h="2" id="overlay-trigger">
         OverlayTrigger
       </LinkedHeading>
       <p>
@@ -116,6 +118,27 @@ export default withLayout(function TooltipSection({ data }) {
 
       <ReactPlayground codeText={OverlayTrigger} />
 
+      <LinkedHeading h="3" id="customizing-trigger-behavior">
+        Customizing trigger behavior
+      </LinkedHeading>
+
+      <p>
+        For more advanced behaviors <code>{'<OverlayTrigger>'}</code> accepts a
+        function child that passes in the injected <code>ref</code> and event
+        handlers that coorespond to the configured <code>trigger</code> prop.
+      </p>
+      <p>
+        You can manually apply the props to any element you want or split them
+        up. The example below shows how to position the overlay to a different
+        element than the one that triggers its visibility.
+      </p>
+      <Callout>
+        <strong>Pro Tip:</strong> Using the function form of OverlayTrigger
+        avoids a <code>React.findDOMNode</code> call, for those trying to be
+        strict mode compliant.
+      </Callout>
+      <ReactPlayground codeText={TriggerRenderProp} />
+
       <LinkedHeading h="2" id="tooltips">
         Tooltips
       </LinkedHeading>

yarn.lock

@@ -7601,10 +7601,10 @@ react-lifecycles-compat@^3.0.4:
   resolved "https://registry.yarnpkg.com/react-lifecycles-compat/-/react-lifecycles-compat-3.0.4.tgz#4f1a273afdfc8f3488a8c516bfda78f872352362"
   integrity sha512-fBASbA6LnOU9dOU2eW7aQ8xmYBSXUIWr+UmF9b1efZBazGNO+rcXT/icdKnYm2pTwcRylVUYwW7H1PHfLekVzA==
 
-react-overlays@^4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/react-overlays/-/react-overlays-4.0.0.tgz#7fbcb60d12fee3733e9e4dd216b225e94fb3befe"
-  integrity sha512-LpznWocwgeB5oWKg6cDdkqKP7MbX4ClKbJqgZGUMXPRBBYcqrgM6TjjZ/8DeurNU//GuqwQMjhmo/JVma4XEWw==
+react-overlays@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/react-overlays/-/react-overlays-4.1.0.tgz#755a890519b02e3904845172d5223ff2dfb1bb29"
+  integrity sha512-vdRpnKe0ckWOOD9uWdqykLUPHLPndIiUV7XfEKsi5008xiyHCfL8bxsx4LbMrfnxW1LzRthLyfy50XYRFNQqqw==
   dependencies:
     "@babel/runtime" "^7.4.5"
     "@popperjs/core" "^2.0.0"
@@ -7625,10 +7625,10 @@ react-test-renderer@^16.0.0-0, react-test-renderer@^16.13.1:
     react-is "^16.8.6"
     scheduler "^0.19.1"
 
-react-transition-group@^4.0.0:
-  version "4.3.0"
-  resolved "https://registry.yarnpkg.com/react-transition-group/-/react-transition-group-4.3.0.tgz#fea832e386cf8796c58b61874a3319704f5ce683"
-  integrity sha512-1qRV1ZuVSdxPlPf4O8t7inxUGpdyO5zG9IoNfJxSO0ImU2A1YWkEQvFPuIPZmMLkg5hYs7vv5mMOyfgSkvAwvw==
+react-transition-group@^4.4.1:
+  version "4.4.1"
+  resolved "https://registry.yarnpkg.com/react-transition-group/-/react-transition-group-4.4.1.tgz#63868f9325a38ea5ee9535d828327f85773345c9"
+  integrity sha512-Djqr7OQ2aPUiYurhPalTrVy9ddmFCCzwhqQmtN+J3+3DzLO209Fdr70QrN8Z3DsglWql6iY1lDWAfpFiBtuKGw==
   dependencies:
     "@babel/runtime" "^7.5.5"
     dom-helpers "^5.0.1"