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/** |
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* Route core's in-between / empty-block "+" through the full mini inserter. |
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* No prop seam for `__experimentalIsQuick`; click is intercepted and our own |
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* <Inserter> mounts on an invisible anchor (core's "+" unmounts on hover-end). |
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* Anchor tracks the destination block each frame via DOM writes, not React state. |
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*/ |
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import { Inserter } from '@wordpress/block-editor'; |
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import { select as dataSelect, useSelect } from '@wordpress/data'; |
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import { createPortal, useCallback, useEffect, useRef, useState } from '@wordpress/element'; |
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import { registerPlugin } from '@wordpress/plugins'; |
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|
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import { resolveMiniInserterPosition } from '../lib/miniInserterPlacement'; |
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import { clearMiniInserterTarget, setMiniInserterTarget } from '../lib/miniInserterTarget'; |
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|
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const PB_CPTS = [ 'wppb-rf-cpt', 'wppb-epf-cpt' ]; |
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|
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const IN_BETWEEN_CLASS = 'block-editor-block-list__insertion-point-inserter'; |
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const EMPTY_BLOCK_CLASS = 'block-editor-block-list__empty-block-inserter'; |
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const HOST_SELECTOR = `.${ IN_BETWEEN_CLASS }, .${ EMPTY_BLOCK_CLASS }`; |
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|
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/** |
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* Insert destination for a "+" click (`clientId` = insert before; else append). |
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* |
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* @param {Element} host The "+" wrapper that was clicked. |
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* @return {?Object} `{ rootClientId, clientId, isAppender }` or null. |
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*/ |
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const resolveDestination = ( host ) => { |
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const editor = dataSelect( 'core/block-editor' ); |
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if ( ! editor ) return null; |
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|
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if ( host.classList.contains( EMPTY_BLOCK_CLASS ) ) { |
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const clientId = editor.getSelectedBlockClientId(); |
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if ( ! clientId ) return null; |
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return { rootClientId: editor.getBlockRootClientId( clientId ) || undefined, clientId }; |
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} |
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|
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const point = editor.getBlockInsertionPoint(); |
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if ( ! point ) return null; |
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const rootClientId = point.rootClientId || undefined; |
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const clientId = ( editor.getBlockOrder( point.rootClientId ) || [] )[ point.index ]; |
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return clientId ? { rootClientId, clientId } : { rootClientId, isAppender: true }; |
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}; |
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|
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/** |
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* Destination block position in main-document coords (iframe offset added). |
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* Used as a moving origin so the anchor tracks canvas scroll/reflow. |
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* |
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* @param {Object} destination `{ rootClientId, clientId }` from resolveDestination. |
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* @return {?Object} `{ left, top }` or null when the canvas isn't reachable. |
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*/ |
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const measureDestinationOrigin = ( { clientId, rootClientId } ) => { |
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const iframe = document.querySelector( 'iframe[name="editor-canvas"]' ); |
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const doc = iframe ? iframe.contentDocument : document; |
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if ( ! doc ) return null; |
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const frame = iframe ? iframe.getBoundingClientRect() : { left: 0, top: 0 }; |
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|
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const el = |
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( clientId && doc.querySelector( `[data-block="${ clientId }"]` ) ) || |
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( rootClientId && doc.querySelector( `[data-block="${ rootClientId }"]` ) ) || |
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doc.querySelector( '.block-editor-block-list__layout.is-root-container' ); |
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if ( ! el ) return null; |
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|
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const rect = el.getBoundingClientRect(); |
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return { left: frame.left + rect.left, top: frame.top + rect.top }; |
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}; |
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|
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/** Invisible toggle that opens its Dropdown once on mount. */ |
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const AutoOpenToggle = ( { onToggle } ) => { |
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const openedRef = useRef( false ); |
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useEffect( () => { |
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if ( openedRef.current ) return; |
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openedRef.current = true; |
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onToggle(); |
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// eslint-disable-next-line react-hooks/exhaustive-deps |
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}, [] ); |
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return <span className="wppb-fb-point-inserter__toggle" aria-hidden="true" />; |
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}; |
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|
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const CanvasPointInserter = () => { |
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const postType = useSelect( ( select ) => select( 'core/editor' ).getCurrentPostType(), [] ); |
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const isOurPostType = PB_CPTS.includes( postType ); |
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|
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const [ target, setTarget ] = useState( null ); |
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const close = useCallback( () => setTarget( null ), [] ); |
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const anchorRef = useRef( null ); |
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|
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useEffect( () => { |
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if ( ! isOurPostType ) return undefined; |
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|
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const onClickCapture = ( event ) => { |
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const el = event.target; |
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if ( ! el || typeof el.closest !== 'function' ) return; |
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const host = el.closest( HOST_SELECTOR ); |
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if ( ! host ) return; |
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|
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const destination = resolveDestination( host ); |
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if ( ! destination ) return; |
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|
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event.preventDefault(); |
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event.stopPropagation(); |
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event.stopImmediatePropagation(); |
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|
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const rect = host.getBoundingClientRect(); |
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setTarget( { |
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rect: { left: rect.left, top: rect.top, width: rect.width, height: rect.height }, |
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position: resolveMiniInserterPosition( rect ), |
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origin: measureDestinationOrigin( destination ), |
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...destination, |
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} ); |
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}; |
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|
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// "+" popovers live in the main document; one capture listener covers both. |
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document.addEventListener( 'click', onClickCapture, true ); |
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return () => document.removeEventListener( 'click', onClickCapture, true ); |
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}, [ isOurPostType ] ); |
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|
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// Track destination movement with DOM writes (state would re-render each frame). |
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useEffect( () => { |
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if ( ! target || ! target.origin ) return undefined; |
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|
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let raf = 0; |
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let applied = null; |
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const sync = () => { |
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raf = window.requestAnimationFrame( sync ); |
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|
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const node = anchorRef.current; |
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const now = measureDestinationOrigin( target ); |
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if ( ! node || ! now ) return; |
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|
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const dx = now.left - target.origin.left; |
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const dy = now.top - target.origin.top; |
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if ( applied && applied.dx === dx && applied.dy === dy ) return; |
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applied = { dx, dy }; |
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|
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node.style.left = `${ target.rect.left + dx }px`; |
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node.style.top = `${ target.rect.top + dy }px`; |
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}; |
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|
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raf = window.requestAnimationFrame( sync ); |
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return () => window.cancelAnimationFrame( raf ); |
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}, [ target ] ); |
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|
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useEffect( () => { |
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if ( ! target ) return undefined; |
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setMiniInserterTarget( target ); |
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return () => clearMiniInserterTarget(); |
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}, [ target ] ); |
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|
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if ( ! isOurPostType || ! target ) return null; |
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|
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return createPortal( |
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<div |
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className="wppb-fb-point-inserter" |
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ref={ anchorRef } |
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style={ { |
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left: `${ target.rect.left }px`, |
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top: `${ target.rect.top }px`, |
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width: `${ target.rect.width }px`, |
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height: `${ target.rect.height }px`, |
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} } |
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> |
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<Inserter |
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rootClientId={ target.rootClientId } |
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clientId={ target.clientId } |
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isAppender={ !! target.isAppender } |
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position={ target.position } |
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onToggle={ ( isOpen ) => { |
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if ( ! isOpen ) close(); |
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} } |
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onSelectOrClose={ close } |
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renderToggle={ ( { onToggle } ) => <AutoOpenToggle onToggle={ onToggle } /> } |
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/> |
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</div>, |
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document.body |
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); |
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}; |
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|
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registerPlugin( 'wppb-fb-canvas-point-inserter', { render: CanvasPointInserter } ); |
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|
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export default CanvasPointInserter; |
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