polyfill-service/polyfills/__dist/Element.json

A polyfill combinator

{"aliases":["default"],"browsers":{"ie":"6 - 8"},"dependencies":["Document"],"spec":"https://dom.spec.whatwg.org/#interface-element","docs":"https://developer.mozilla.org/en-US/docs/Web/API/Element","baseDir":"Element","hasTests":false,"rawSource":"\n// Element\n(function () {\n\n\t// IE8\n\tif (window.Element && !window.HTMLElement) {\n\t\twindow.HTMLElement = window.Element;\n\t\treturn;\n\t}\n\n\t// create Element constructor\n\twindow.Element = window.HTMLElement = new Function('return function Element() {}')();\n\n\t// generate sandboxed iframe\n\tvar vbody = document.appendChild(document.createElement('body'));\n\tvar frame = vbody.appendChild(document.createElement('iframe'));\n\n\t// use sandboxed iframe to replicate Element functionality\n\tvar frameDocument = frame.contentWindow.document;\n\tvar prototype = Element.prototype = frameDocument.appendChild(frameDocument.createElement('*'));\n\tvar cache = {};\n\n\t// polyfill Element.prototype on an element\n\tvar shiv = function (element, deep) {\n\t\tvar\n\t\tchildNodes = element.childNodes || [],\n\t\tindex = -1,\n\t\tkey, value, childNode;\n\n\t\tif (element.nodeType === 1 && element.constructor !== Element) {\n\t\t\telement.constructor = Element;\n\n\t\t\tfor (key in cache) {\n\t\t\t\tvalue = cache[key];\n\t\t\t\telement[key] = value;\n\t\t\t}\n\t\t}\n\n\t\twhile (childNode = deep && childNodes[++index]) {\n\t\t\tshiv(childNode, deep);\n\t\t}\n\n\t\treturn element;\n\t};\n\n\tvar elements = document.getElementsByTagName('*');\n\tvar nativeCreateElement = document.createElement;\n\tvar interval;\n\tvar loopLimit = 100;\n\n\tprototype.attachEvent('onpropertychange', function (event) {\n\t\tvar\n\t\tpropertyName = event.propertyName,\n\t\tnonValue = !cache.hasOwnProperty(propertyName),\n\t\tnewValue = prototype[propertyName],\n\t\toldValue = cache[propertyName],\n\t\tindex = -1,\n\t\telement;\n\n\t\twhile (element = elements[++index]) {\n\t\t\tif (element.nodeType === 1) {\n\t\t\t\tif (nonValue || element[propertyName] === oldValue) {\n\t\t\t\t\telement[propertyName] = newValue;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tcache[propertyName] = newValue;\n\t});\n\n\tprototype.constructor = Element;\n\n\tif (!prototype.hasAttribute) {\n\t\t// <Element>.hasAttribute\n\t\tprototype.hasAttribute = function hasAttribute(name) {\n\t\t\treturn this.getAttribute(name) !== null;\n\t\t};\n\t}\n\n\t// Apply Element prototype to the pre-existing DOM as soon as the body element appears.\n\tfunction bodyCheck(e) {\n\t\tif (!(loopLimit--)) clearTimeout(interval);\n\t\tif (document.body && !document.body.prototype && /(complete|interactive)/.test(document.readyState)) {\n\t\t\tshiv(document, true);\n\t\t\tif (interval && document.body.prototype) clearTimeout(interval);\n\t\t\treturn (!!document.body.prototype);\n\t\t}\n\t\treturn false;\n\t}\n\tif (!bodyCheck(true)) {\n\t\tdocument.onreadystatechange = bodyCheck;\n\t\tinterval = setInterval(bodyCheck, 25);\n\t}\n\n\t// Apply to any new elements created after load\n\tdocument.createElement = function createElement(nodeName) {\n\t\tvar element = nativeCreateElement(String(nodeName).toLowerCase());\n\t\treturn shiv(element);\n\t};\n\n\t// remove sandboxed iframe\n\tdocument.removeChild(vbody);\n})();\n","minSource":"!function(){function e(e){return a--||clearTimeout(t),document.body&&!document.body.prototype&&/(complete|interactive)/.test(document.readyState)?(m(document,!0),t&&document.body.prototype&&clearTimeout(t),!!document.body.prototype):!1}if(window.Element&&!window.HTMLElement)return void(window.HTMLElement=window.Element);window.Element=window.HTMLElement=new Function(\"return function Element() {}\")();var t,n=document.appendChild(document.createElement(\"body\")),o=n.appendChild(document.createElement(\"iframe\")),r=o.contentWindow.document,c=Element.prototype=r.appendChild(r.createElement(\"*\")),d={},m=function(e,t){var n,o,r,c=e.childNodes||[],u=-1;if(1===e.nodeType&&e.constructor!==Element){e.constructor=Element;for(n in d)o=d[n],e[n]=o}for(;r=t&&c[++u];)m(r,t);return e},u=document.getElementsByTagName(\"*\"),i=document.createElement,a=100;c.attachEvent(\"onpropertychange\",function(e){for(var t,n=e.propertyName,o=!d.hasOwnProperty(n),r=c[n],m=d[n],i=-1;t=u[++i];)1===t.nodeType&&(o||t[n]===m)&&(t[n]=r);d[n]=r}),c.constructor=Element,c.hasAttribute||(c.hasAttribute=function(e){return null!==this.getAttribute(e)}),e(!0)||(document.onreadystatechange=e,t=setInterval(e,25)),document.createElement=function(e){var t=i(String(e).toLowerCase());return m(t)},document.removeChild(n)}();","detectSource":"'Element' in this && 'HTMLElement' in this"}