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/** |
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* Focus the mini inserter search field when its popover opens. |
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* |
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* Inserter hardcodes popover focus with no seam; WP 7.0's first tabbable is the |
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* tab button, not search. Re-assert for a few frames (core steals focus once via |
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* setTimeout), then stop on real user input. Docked inserter and tab switches |
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* are left alone. |
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*/ |
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import { useSelect } from '@wordpress/data'; |
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import { useEffect } from '@wordpress/element'; |
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import { registerPlugin } from '@wordpress/plugins'; |
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|
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import { getMiniInserterTarget, subscribeMiniInserterTarget } 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 POPOVER_SELECTOR = '.block-editor-inserter__popover'; |
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|
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// Hard cap; only real frames count so a slow mount doesn't eat the budget. |
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const MAX_FRAMES = 12; |
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|
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// Enough consecutive focused frames to outlast core's focus-first-tabbable timeout. |
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const SETTLED_FRAMES = 3; |
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|
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/** |
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* Visible tab's search input (both panels stay mounted; inactive is `hidden`). |
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* |
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* @param {Element} popover The open inserter popover. |
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* @return {?HTMLInputElement} The visible search input, or null. |
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*/ |
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const visibleSearchInput = ( popover ) => { |
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for ( const search of popover.querySelectorAll( '.block-editor-inserter__search' ) ) { |
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if ( search.closest( '[hidden]' ) ) continue; |
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const input = search.querySelector( 'input' ); |
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if ( input ) return input; |
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} |
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return null; |
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}; |
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|
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/** |
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* Keep search focused for the first few frames of the popover's life. |
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* |
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* @return {Function} Cancels the loop; idempotent. |
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*/ |
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const assertSearchFocus = () => { |
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let frames = 0; |
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let settled = 0; |
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let raf = 0; |
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|
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const stop = () => { |
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if ( raf ) window.cancelAnimationFrame( raf ); |
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raf = 0; |
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document.removeEventListener( 'pointerdown', stop, true ); |
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document.removeEventListener( 'keydown', stop, true ); |
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}; |
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|
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const tick = () => { |
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raf = 0; |
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if ( frames++ >= MAX_FRAMES || settled >= SETTLED_FRAMES ) { |
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stop(); |
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return; |
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} |
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|
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const popover = document.querySelector( POPOVER_SELECTOR ); |
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const input = popover ? visibleSearchInput( popover ) : null; |
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if ( input ) { |
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if ( input.ownerDocument.activeElement === input ) { |
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settled++; |
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} else { |
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settled = 0; |
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// preventScroll: popover is still positioning; scroll-into-view yanks the canvas. |
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input.focus( { preventScroll: true } ); |
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} |
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} |
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|
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raf = window.requestAnimationFrame( tick ); |
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}; |
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|
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document.addEventListener( 'pointerdown', stop, true ); |
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document.addEventListener( 'keydown', stop, true ); |
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raf = window.requestAnimationFrame( tick ); |
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|
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return stop; |
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}; |
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|
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const MiniInserterSearchFocus = () => { |
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const isOurPostType = useSelect( |
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( select ) => PB_CPTS.includes( select( 'core/editor' ).getCurrentPostType() ), |
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[] |
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); |
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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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// Destination store already published by AddFieldButton / CanvasPointInserter. |
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let cancel = null; |
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const onTargetChange = () => { |
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if ( ! getMiniInserterTarget().open ) { |
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if ( cancel ) cancel(); |
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cancel = null; |
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return; |
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} |
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// Destination change is not a reopen — don't restart the loop. |
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if ( ! cancel ) cancel = assertSearchFocus(); |
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}; |
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|
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const unsubscribe = subscribeMiniInserterTarget( onTargetChange ); |
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onTargetChange(); |
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|
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return () => { |
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unsubscribe(); |
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if ( cancel ) cancel(); |
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}; |
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}, [ isOurPostType ] ); |
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|
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return null; |
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}; |
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|
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registerPlugin( 'wppb-fb-mini-inserter-search-focus', { render: MiniInserterSearchFocus } ); |
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|
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export default MiniInserterSearchFocus; |
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