{
  "version": 3,
  "sources": ["../../../src/hooks/use-media-query/index.ts"],
  "sourcesContent": ["/**\n * WordPress dependencies\n */\nimport { useMemo, useSyncExternalStore } from '@wordpress/element';\n\ntype MQLCache = Map< string, MediaQueryList >;\n\nconst perWindowCache = new WeakMap< Window, MQLCache >();\n\n/**\n * A new MediaQueryList object for the media query\n *\n * @param view    Window.\n * @param [query] Media Query.\n */\nfunction getMediaQueryList(\n\tview: Window,\n\tquery?: string\n): MediaQueryList | null {\n\tif ( ! query ) {\n\t\treturn null;\n\t}\n\n\tconst matchMediaCache: MQLCache = perWindowCache.get( view ) ?? new Map();\n\n\tif ( ! perWindowCache.has( view ) ) {\n\t\tperWindowCache.set( view, matchMediaCache );\n\t}\n\n\tlet match = matchMediaCache.get( query );\n\n\tif ( match ) {\n\t\treturn match;\n\t}\n\n\tif ( typeof view?.matchMedia === 'function' ) {\n\t\tmatch = view.matchMedia( query );\n\t\tmatchMediaCache.set( query, match );\n\t\treturn match;\n\t}\n\n\treturn null;\n}\n\n/**\n * Runs a media query and returns its value when it changes.\n *\n * @param [query] Media Query.\n * @param [view]  Window instance, else default to global window\n * @return return value of the media query.\n */\nexport default function useMediaQuery(\n\tquery?: string,\n\tview: Window = window\n): boolean {\n\tconst source = useMemo( () => {\n\t\tconst mediaQueryList = getMediaQueryList( view, query );\n\n\t\treturn {\n\t\t\tsubscribe( onStoreChange: any ) {\n\t\t\t\tif ( ! mediaQueryList ) {\n\t\t\t\t\treturn () => {};\n\t\t\t\t}\n\n\t\t\t\t// Avoid a fatal error when browsers don't support `addEventListener` on MediaQueryList.\n\t\t\t\tmediaQueryList.addEventListener?.( 'change', onStoreChange );\n\t\t\t\treturn () => {\n\t\t\t\t\tmediaQueryList.removeEventListener?.(\n\t\t\t\t\t\t'change',\n\t\t\t\t\t\tonStoreChange\n\t\t\t\t\t);\n\t\t\t\t};\n\t\t\t},\n\t\t\tgetValue() {\n\t\t\t\treturn mediaQueryList?.matches ?? false;\n\t\t\t},\n\t\t};\n\t}, [ view, query ] );\n\n\treturn useSyncExternalStore(\n\t\tsource.subscribe,\n\t\tsource.getValue,\n\t\t() => false\n\t);\n}\n"],
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