@wordpress/blocks/build/api/parser/fix-custom-classname.cjs.map

Block API for WordPress.

{
  "version": 3,
  "sources": ["../../../src/api/parser/fix-custom-classname.js"],
  "sourcesContent": ["/**\n * Internal dependencies\n */\nimport { hasBlockSupport } from '../registration';\nimport { getSaveContent } from '../serializer';\nimport { parseWithAttributeSchema } from './get-block-attributes';\n\nconst CLASS_ATTR_SCHEMA = {\n\ttype: 'string',\n\tsource: 'attribute',\n\tselector: '[data-custom-class-name] > *',\n\tattribute: 'class',\n};\n\n/**\n * Given an HTML string, returns an array of class names assigned to the root\n * element in the markup.\n *\n * @param {string} innerHTML Markup string from which to extract classes.\n *\n * @return {string[]} Array of class names assigned to the root element.\n */\nexport function getHTMLRootElementClasses( innerHTML ) {\n\tconst parsed = parseWithAttributeSchema(\n\t\t`<div data-custom-class-name>${ innerHTML }</div>`,\n\t\tCLASS_ATTR_SCHEMA\n\t);\n\n\treturn parsed ? parsed.trim().split( /\\s+/ ) : [];\n}\n\n/**\n * Given a parsed set of block attributes, if the block supports custom class\n * names and an unknown class (per the block's serialization behavior) is\n * found, the unknown classes are treated as custom classes. This prevents the\n * block from being considered as invalid.\n *\n * @param {Object} blockAttributes Original block attributes.\n * @param {Object} blockType       Block type settings.\n * @param {string} innerHTML       Original block markup.\n *\n * @return {Object} Filtered block attributes.\n */\nexport function fixCustomClassname( blockAttributes, blockType, innerHTML ) {\n\tif ( ! hasBlockSupport( blockType, 'customClassName', true ) ) {\n\t\treturn blockAttributes;\n\t}\n\n\tconst modifiedBlockAttributes = { ...blockAttributes };\n\t// To determine difference, serialize block given the known set of\n\t// attributes, with the exception of `className`. This will determine\n\t// the default set of classes. From there, any difference in innerHTML\n\t// can be considered as custom classes.\n\tconst { className: omittedClassName, ...attributesSansClassName } =\n\t\tmodifiedBlockAttributes;\n\tconst serialized = getSaveContent( blockType, attributesSansClassName );\n\tconst defaultClasses = getHTMLRootElementClasses( serialized );\n\tconst actualClasses = getHTMLRootElementClasses( innerHTML );\n\n\tconst customClasses = actualClasses.filter(\n\t\t( className ) => ! defaultClasses.includes( className )\n\t);\n\n\tif ( customClasses.length ) {\n\t\tmodifiedBlockAttributes.className = customClasses.join( ' ' );\n\t} else if ( serialized ) {\n\t\tdelete modifiedBlockAttributes.className;\n\t}\n\n\treturn modifiedBlockAttributes;\n}\n"],
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