feat: forward ref to be used on render

Author: gabrieljablonski

src/components/Tooltip/Tooltip.tsx

@@ -34,6 +34,7 @@ const Tooltip = ({
   afterHide,
   // props handled by controller
   content,
+  contentRef,
   isOpen,
   setIsOpen,
   activeAnchor,
@@ -425,7 +426,7 @@ const Tooltip = ({
     }
   }, [id, anchorSelect, activeAnchor])
 
-  useEffect(() => {
+  const updateTooltipPosition = () => {
     if (position) {
       // if `position` is set, override regular and `float` positioning
       handleTooltipPosition(position)
@@ -468,8 +469,29 @@ const Tooltip = ({
       }
       setActualPlacement(computedStylesData.place as PlacesType)
     })
+  }
+
+  useEffect(() => {
+    updateTooltipPosition()
   }, [show, activeAnchor, content, externalStyles, place, offset, positionStrategy, position])
 
+  useEffect(() => {
+    if (!contentRef?.current) {
+      return () => null
+    }
+    const contentObserver = new MutationObserver(() => {
+      updateTooltipPosition()
+    })
+    contentObserver.observe(contentRef.current, {
+      attributes: true,
+      childList: true,
+      subtree: true,
+    })
+    return () => {
+      contentObserver.disconnect()
+    }
+  }, [content, contentRef?.current])
+
   useEffect(() => {
     const anchorById = document.querySelector<HTMLElement>(`[id='${anchorId}']`)
     const anchors = [...anchorsBySelect, anchorById]

src/components/Tooltip/TooltipTypes.d.ts

@@ -1,4 +1,4 @@
-import type { ElementType, ReactNode, CSSProperties } from 'react'
+import type { ElementType, ReactNode, CSSProperties, RefObject } from 'react'
 
 export type PlacesType = 'top' | 'right' | 'bottom' | 'left'
 
@@ -40,6 +40,7 @@ export interface ITooltip {
   className?: string
   classNameArrow?: string
   content?: ChildrenType
+  contentRef?: RefObject<HTMLElement>
   place?: PlacesType
   offset?: number
   id?: string

src/components/TooltipController/TooltipController.tsx

@@ -1,4 +1,4 @@
-import { useEffect, useState } from 'react'
+import { useEffect, useRef, useState } from 'react'
 import { Tooltip } from 'components/Tooltip'
 import type {
   EventsType,
@@ -205,8 +205,9 @@ const TooltipController = ({
    * children should be lower priority so that it can be used as the "default" content
    */
   let renderedContent: ChildrenType = children
+  const contentRef = useRef<HTMLElement>(null)
   if (render) {
-    renderedContent = render({ content: tooltipContent ?? null, activeAnchor })
+    renderedContent = render({ ref: contentRef, content: tooltipContent ?? null, activeAnchor })
   } else if (tooltipContent) {
     renderedContent = tooltipContent
   }
@@ -221,6 +222,7 @@ const TooltipController = ({
     className,
     classNameArrow,
     content: renderedContent,
+    contentRef,
     place: tooltipPlace,
     variant: tooltipVariant,
     offset: tooltipOffset,

src/components/TooltipController/TooltipControllerTypes.d.ts

@@ -1,4 +1,4 @@
-import type { CSSProperties } from 'react'
+import type { CSSProperties, RefObject } from 'react'
 
 import type {
   PlacesType,
@@ -19,7 +19,11 @@ export interface ITooltipController {
    * @deprecated Use `children` or `render` instead
    */
   html?: string
-  render?: (render: { content: string | null; activeAnchor: HTMLElement | null }) => ChildrenType
+  render?: (render: {
+    ref: RefObject<HTMLElement>
+    content: string | null
+    activeAnchor: HTMLElement | null
+  }) => ChildrenType
   place?: PlacesType
   offset?: number
   id?: string