@wordpress/block-editor/build-module/components/block-list/use-block-props/use-focus-first-element.mjs.map

Generic block editor.

{
  "version": 3,
  "sources": ["../../../../src/components/block-list/use-block-props/use-focus-first-element.js"],
  "sourcesContent": ["/**\n * WordPress dependencies\n */\nimport { useEffect, useRef } from '@wordpress/element';\nimport {\n\tfocus,\n\tisFormElement,\n\tisTextField,\n\tplaceCaretAtHorizontalEdge,\n} from '@wordpress/dom';\nimport { useSelect } from '@wordpress/data';\n\n/**\n * Internal dependencies\n */\nimport { isInsideRootBlock } from '../../../utils/dom';\nimport { store as blockEditorStore } from '../../../store';\nimport { unlock } from '../../../lock-unlock';\n\n/** @typedef {import('@wordpress/element').RefObject} RefObject */\n\n/**\n * Transitions focus to the block or inner tabbable when the block becomes\n * selected and an initial position is set.\n *\n * @param {string} clientId Block client ID.\n *\n * @return {RefObject} React ref with the block element.\n */\nexport function useFocusFirstElement( { clientId, initialPosition } ) {\n\tconst ref = useRef();\n\tconst { isBlockSelected, isMultiSelecting, isZoomOut } = unlock(\n\t\tuseSelect( blockEditorStore )\n\t);\n\n\tuseEffect( () => {\n\t\t// Check if the block is still selected at the time this effect runs.\n\t\tif (\n\t\t\t! isBlockSelected( clientId ) ||\n\t\t\tisMultiSelecting() ||\n\t\t\tisZoomOut()\n\t\t) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( initialPosition === undefined || initialPosition === null ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( ! ref.current ) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst { ownerDocument } = ref.current;\n\n\t\t// Do not focus the block if it already contains the active element.\n\t\tif ( isInsideRootBlock( ref.current, ownerDocument.activeElement ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Find all tabbables within node.\n\t\tconst textInputs = focus.tabbable\n\t\t\t.find( ref.current )\n\t\t\t.filter( ( node ) => isTextField( node ) );\n\n\t\t// If reversed (e.g. merge via backspace), use the last in the set of\n\t\t// tabbables.\n\t\tconst isReverse = -1 === initialPosition;\n\t\tconst target =\n\t\t\ttextInputs[ isReverse ? textInputs.length - 1 : 0 ] || ref.current;\n\n\t\tif ( ! isInsideRootBlock( ref.current, target ) ) {\n\t\t\tref.current.focus();\n\t\t\treturn;\n\t\t}\n\n\t\t// Check to see if element is focussable before a generic caret insert.\n\t\tif ( ! ref.current.getAttribute( 'contenteditable' ) ) {\n\t\t\tconst focusElement = focus.tabbable.findNext( ref.current );\n\t\t\t// Make sure focusElement is valid, contained in the same block, and a form field.\n\t\t\tif (\n\t\t\t\tfocusElement &&\n\t\t\t\tisInsideRootBlock( ref.current, focusElement ) &&\n\t\t\t\tisFormElement( focusElement )\n\t\t\t) {\n\t\t\t\tfocusElement.focus();\n\t\t\t\treturn;\n\t\t\t}\n\t\t}\n\t\tplaceCaretAtHorizontalEdge( target, isReverse );\n\t}, [ initialPosition, clientId ] );\n\n\treturn ref;\n}\n"],
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  "names": []
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