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5.6 KiB
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{"version":3,"file":"index.mjs","sources":["src/browser.js"],"sourcesContent":["export default function cssBlankPseudo(document, opts) {\n\t// configuration\n\tconst className = Object(opts).className;\n\tconst attr = Object(opts).attr || 'blank';\n\tconst force = Object(opts).force;\n\n\ttry {\n\t\tdocument.querySelector(':blank');\n\n\t\tif (!force) {\n\t\t\treturn;\n\t\t}\n\t} catch (ignoredError) { /* do nothing and continue */ }\n\n\t// observe value changes on <input>, <select>, and <textarea>\n\tconst window = (document.ownerDocument || document).defaultView;\n\n\tobserveValueOfHTMLElement(window.HTMLInputElement);\n\tobserveValueOfHTMLElement(window.HTMLSelectElement);\n\tobserveValueOfHTMLElement(window.HTMLTextAreaElement);\n\n\t// form control elements selector\n\tconst selector = 'input,select,textarea';\n\n\t// conditionally update all form control elements\n\tArray.prototype.forEach.call(\n\t\tdocument.querySelectorAll(selector),\n\t\tnode => {\n\t\t\tnode.addEventListener('input', configureCssBlankAttribute);\n\t\t\tconfigureCssBlankAttribute.call(node);\n\t\t}\n\t);\n\n\t// conditionally observe added or unobserve removed form control elements\n\tnew MutationObserver(mutationsList => {\n\t\tmutationsList.forEach(mutation => {\n\t\t\tif (mutation.addedNodes) {\n\t\t\t\tmutation.addedNodes.forEach(\n\t\t\t\t\tnode => {\n\t\t\t\t\t\tif (node.nodeType === 1 && node.matches(selector)) {\n\t\t\t\t\t\t\tnode.addEventListener('input', configureCssBlankAttribute);\n\t\t\t\t\t\t\tconfigureCssBlankAttribute.call(node);\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t);\n\t\t\t}\n\n\t\t\tif (mutation.removedNodes) {\n\t\t\t\tmutation.removedNodes.forEach(\n\t\t\t\t\tnode => {\n\t\t\t\t\t\tif (node.nodeType === 1 && node.matches(selector)) {\n\t\t\t\t\t\t\tnode.removeEventListener('input', configureCssBlankAttribute);\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t);\n\t\t\t}\n\t\t});\n\t}).observe(document, { childList: true, subtree: true });\n\n\t// update a form control element’s css-blank attribute\n\tfunction configureCssBlankAttribute() {\n\t\tif (this.value) {\n\t\t\tif (attr) {\n\t\t\t\tthis.removeAttribute(attr);\n\t\t\t}\n\n\t\t\tif (className) {\n\t\t\t\tthis.classList.remove(className);\n\t\t\t}\n\t\t\tthis.removeAttribute('blank');\n\t\t} else {\n\t\t\tif (attr) {\n\t\t\t\tthis.setAttribute('blank', attr);\n\t\t\t}\n\n\t\t\tif (className) {\n\t\t\t\tthis.classList.add(className);\n\t\t\t}\n\t\t}\n\t}\n\n\t// observe changes to the \"value\" property on an HTML Element\n\tfunction observeValueOfHTMLElement(HTMLElement) {\n\t\tconst descriptor = Object.getOwnPropertyDescriptor(HTMLElement.prototype, 'value');\n\t\tconst nativeSet = descriptor.set;\n\n\t\tdescriptor.set = function set(value) { // eslint-disable-line no-unused-vars\n\t\t\tnativeSet.apply(this, arguments);\n\n\t\t\tconfigureCssBlankAttribute.apply(this);\n\t\t}\n\n\t\tObject.defineProperty(HTMLElement.prototype, 'value', descriptor);\n\t}\n}\n"],"names":["cssBlankPseudo","document","opts","className","Object","attr","force","querySelector","ignoredError","window","ownerDocument","defaultView","observeValueOfHTMLElement","HTMLInputElement","HTMLSelectElement","HTMLTextAreaElement","selector","Array","prototype","forEach","call","querySelectorAll","node","addEventListener","configureCssBlankAttribute","MutationObserver","mutationsList","mutation","addedNodes","nodeType","matches","removedNodes","removeEventListener","observe","childList","subtree","value","removeAttribute","classList","remove","setAttribute","add","HTMLElement","descriptor","getOwnPropertyDescriptor","nativeSet","set","apply","arguments","defineProperty"],"mappings":"AAAe,SAASA,cAAT,CAAwBC,QAAxB,EAAkCC,IAAlC,EAAwC;;QAEhDC,SAAS,GAAGC,MAAM,CAACF,IAAD,CAAN,CAAaC,SAA/B;QACME,IAAI,GAAGD,MAAM,CAACF,IAAD,CAAN,CAAaG,IAAb,IAAqB,OAAlC;QACMC,KAAK,GAAGF,MAAM,CAACF,IAAD,CAAN,CAAaI,KAA3B;;MAEI;IACHL,QAAQ,CAACM,aAAT,CAAuB,QAAvB;;QAEI,CAACD,KAAL,EAAY;;;GAHb,CAME,OAAOE,YAAP,EAAqB;;;;;QAGjBC,MAAM,GAAG,CAACR,QAAQ,CAACS,aAAT,IAA0BT,QAA3B,EAAqCU,WAApD;EAEAC,yBAAyB,CAACH,MAAM,CAACI,gBAAR,CAAzB;EACAD,yBAAyB,CAACH,MAAM
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