Use dynamic toolbar height in hook

packages/block-editor/src/components/block-popover/index.js

@@ -6,28 +6,35 @@ import classnames from 'classnames';
 /**
  * WordPress dependencies
  */
+import { useMergeRefs } from '@wordpress/compose';
 import { Popover } from '@wordpress/components';
-import { useMemo } from '@wordpress/element';
+import { forwardRef, useMemo } from '@wordpress/element';
 
 /**
  * Internal dependencies
  */
 import { __unstableUseBlockElement as useBlockElement } from '../block-list/use-block-props/use-block-refs';
 import usePopoverScroll from './use-popover-scroll';
 
-export default function BlockPopover( {
-	clientId,
-	bottomClientId,
-	children,
-	__unstableRefreshSize,
-	__unstableCoverTarget = false,
-	__unstablePopoverSlot,
-	__unstableContentRef,
-	...props
-} ) {
+function BlockPopover(
+	{
+		clientId,
+		bottomClientId,
+		children,
+		__unstableRefreshSize,
+		__unstableCoverTarget = false,
+		__unstablePopoverSlot,
+		__unstableContentRef,
+		...props
+	},
+	ref
+) {
 	const selectedElement = useBlockElement( clientId );
 	const lastSelectedElement = useBlockElement( bottomClientId ?? clientId );
-	const popoverScrollRef = usePopoverScroll( __unstableContentRef );
+	const mergedRefs = useMergeRefs( [
+		ref,
+		usePopoverScroll( __unstableContentRef ),
+	] );
 	const style = useMemo( () => {
 		if ( ! selectedElement || lastSelectedElement !== selectedElement ) {
 			return {};
@@ -51,7 +58,7 @@ export default function BlockPopover( {
 
 	return (
 		<Popover
-			ref={ popoverScrollRef }
+			ref={ mergedRefs }
 			animate={ false }
 			position="top right left"
 			focusOnMount={ false }
@@ -74,3 +81,5 @@ export default function BlockPopover( {
 		</Popover>
 	);
 }
+
+export default forwardRef( BlockPopover );

packages/block-editor/src/components/block-tools/use-block-toolbar-popover-props.js

@@ -1,6 +1,7 @@
 /**
  * WordPress dependencies
  */
+import { useRefEffect } from '@wordpress/compose';
 import { useSelect } from '@wordpress/data';
 import { useEffect, useState } from '@wordpress/element';
 
@@ -10,22 +11,21 @@ import { useEffect, useState } from '@wordpress/element';
 import { store as blockEditorStore } from '../../store';
 import { __unstableUseBlockElement as useBlockElement } from '../block-list/use-block-props/use-block-refs';
 
-const TOOLBAR_HEIGHT = 72;
 const DEFAULT_PROPS = { __unstableForcePosition: true, __unstableShift: true };
 const RESTRICTED_HEIGHT_PROPS = {
 	__unstableForcePosition: false,
 	__unstableShift: false,
 };
 
-function getProps( contentElement, selectedBlockElement ) {
+function getProps( contentElement, selectedBlockElement, toolbarHeight ) {
 	if ( ! contentElement || ! selectedBlockElement ) {
 		return DEFAULT_PROPS;
 	}
 
 	const blockRect = selectedBlockElement.getBoundingClientRect();
 	const contentRect = contentElement.getBoundingClientRect();
 
-	if ( blockRect.top - contentRect.top > TOOLBAR_HEIGHT ) {
+	if ( blockRect.top - contentRect.top > toolbarHeight ) {
 		return DEFAULT_PROPS;
 	}
 
@@ -48,18 +48,18 @@ export default function useBlockToolbarPopoverProps( {
 	clientId,
 } ) {
 	const selectedBlockElement = useBlockElement( clientId );
+	const [ toolbarHeight, setToolbarHeight ] = useState( 0 );
 	const [ props, setProps ] = useState(
-		getProps( contentElement, selectedBlockElement )
+		getProps( contentElement, selectedBlockElement, toolbarHeight )
 	);
 	const blockIndex = useSelect(
 		( select ) => select( blockEditorStore ).getBlockIndex( clientId ),
 		[ clientId ]
 	);
 
-	// Update the toolbar position if the block moves.
-	useEffect( () => {
-		setProps( getProps( contentElement, selectedBlockElement ) );
-	}, [ blockIndex ] );
+	const popoverRef = useRefEffect( ( popoverNode ) => {
+		setToolbarHeight( popoverNode.offsetHeight );
+	}, [] );
 
 	// Update the toolbar position if the window resizes, or the
 	// selected element changes.
@@ -69,7 +69,9 @@ export default function useBlockToolbarPopoverProps( {
 		}
 
 		const updateProps = () =>
-			setProps( getProps( contentElement, selectedBlockElement ) );
+			setProps(
+				getProps( contentElement, selectedBlockElement, toolbarHeight )
+			);
 
 		updateProps();
 		const view = contentElement?.ownerDocument?.defaultView;
@@ -78,7 +80,10 @@ export default function useBlockToolbarPopoverProps( {
 		return () => {
 			view?.removeEventHandler?.( 'resize', updateProps );
 		};
-	}, [ contentElement, selectedBlockElement ] );
+	}, [ contentElement, selectedBlockElement, blockIndex, toolbarHeight ] );
 
-	return props;
+	return {
+		...props,
+		ref: popoverRef,
+	};
 }