{
  "version": 3,
  "sources": ["../../src/font-library/font-demo.tsx"],
  "sourcesContent": ["/**\n * WordPress dependencies\n */\nimport { __experimentalText as WCText } from '@wordpress/components';\nimport { useContext, useEffect, useState, useRef } from '@wordpress/element';\nimport type { FontFamily, FontFace } from '@wordpress/core-data';\n\n/**\n * Internal dependencies\n */\nimport { FontLibraryContext } from './context';\nimport {\n\tgetFacePreviewStyle,\n\tgetFamilyPreviewStyle,\n} from './utils/preview-styles';\nimport type { FontDemoProps } from './types';\n\nfunction getPreviewUrl( fontFace: FontFace ): string | undefined {\n\tif ( fontFace.preview ) {\n\t\treturn fontFace.preview;\n\t}\n\tif ( fontFace.src ) {\n\t\treturn Array.isArray( fontFace.src ) ? fontFace.src[ 0 ] : fontFace.src;\n\t}\n\treturn undefined;\n}\n\nfunction getDisplayFontFace( font: FontFamily | FontFace ): FontFace {\n\t// if this IS a font face return it\n\tif (\n\t\t( 'fontStyle' in font && font.fontStyle ) ||\n\t\t( 'fontWeight' in font && font.fontWeight )\n\t) {\n\t\treturn font;\n\t}\n\t// if this is a font family with a collection of font faces\n\t// return the first one that is normal and 400 OR just the first one\n\tif ( 'fontFace' in font && font.fontFace && font.fontFace.length ) {\n\t\treturn (\n\t\t\tfont.fontFace.find(\n\t\t\t\t( face ) =>\n\t\t\t\t\tface.fontStyle === 'normal' && face.fontWeight === '400'\n\t\t\t) || font.fontFace[ 0 ]\n\t\t);\n\t}\n\t// This must be a font family with no font faces\n\t// return a fake font face\n\treturn {\n\t\tfontStyle: 'normal',\n\t\tfontWeight: '400',\n\t\tfontFamily: font.fontFamily,\n\t};\n}\n\nfunction FontDemo( { font, text }: FontDemoProps ) {\n\tconst ref = useRef< HTMLDivElement >( null );\n\n\tconst fontFace = getDisplayFontFace( font );\n\tconst style = getFamilyPreviewStyle( font );\n\ttext = text || ( 'name' in font ? font.name : '' );\n\tconst customPreviewUrl = font.preview;\n\n\tconst [ isIntersecting, setIsIntersecting ] = useState< boolean >( false );\n\tconst [ isAssetLoaded, setIsAssetLoaded ] = useState< boolean >( false );\n\tconst { loadFontFaceAsset } = useContext( FontLibraryContext );\n\n\tconst previewUrl = customPreviewUrl ?? getPreviewUrl( fontFace );\n\tconst isPreviewImage =\n\t\tpreviewUrl && previewUrl.match( /\\.(png|jpg|jpeg|gif|svg)$/i );\n\n\tconst faceStyles = getFacePreviewStyle( fontFace );\n\tconst textDemoStyle = {\n\t\tfontSize: '18px',\n\t\tlineHeight: 1,\n\t\topacity: isAssetLoaded ? '1' : '0',\n\t\t...style,\n\t\t...faceStyles,\n\t};\n\n\tuseEffect( () => {\n\t\tconst observer = new window.IntersectionObserver( ( [ entry ] ) => {\n\t\t\tsetIsIntersecting( entry.isIntersecting );\n\t\t}, {} );\n\t\tif ( ref.current ) {\n\t\t\tobserver.observe( ref.current );\n\t\t}\n\t\treturn () => observer.disconnect();\n\t}, [ ref ] );\n\n\tuseEffect( () => {\n\t\tconst loadAsset = async () => {\n\t\t\tif ( isIntersecting ) {\n\t\t\t\tif ( ! isPreviewImage && fontFace.src ) {\n\t\t\t\t\tawait loadFontFaceAsset( fontFace );\n\t\t\t\t}\n\t\t\t\tsetIsAssetLoaded( true );\n\t\t\t}\n\t\t};\n\t\tloadAsset();\n\t}, [ fontFace, isIntersecting, loadFontFaceAsset, isPreviewImage ] );\n\n\treturn (\n\t\t<div ref={ ref }>\n\t\t\t{ isPreviewImage ? (\n\t\t\t\t<img\n\t\t\t\t\tsrc={ previewUrl }\n\t\t\t\t\tloading=\"lazy\"\n\t\t\t\t\talt={ text }\n\t\t\t\t\tclassName=\"font-library__font-variant_demo-image\"\n\t\t\t\t/>\n\t\t\t) : (\n\t\t\t\t<WCText\n\t\t\t\t\tstyle={ textDemoStyle }\n\t\t\t\t\tclassName=\"font-library__font-variant_demo-text\"\n\t\t\t\t>\n\t\t\t\t\t{ text }\n\t\t\t\t</WCText>\n\t\t\t) }\n\t\t</div>\n\t);\n}\n\nexport default FontDemo;\n"],
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