@amarajs/plugin-dom
Version:
Provides virtual DOM for AmaraJS web applications.
66 lines (58 loc) • 1.74 kB
JavaScript
/*
* DOMParser HTML extension
* 2012-09-04
*
* By Eli Grey, http://eligrey.com
* Public domain.
* NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.
*/
/*! @source https://gist.github.com/1129031 */
/*global document, DOMParser*/
(function(DOMParser) {
"use strict";
var DOMParser_proto = DOMParser.prototype;
var real_parseFromString = DOMParser_proto.parseFromString;
// Firefox/Opera/IE throw errors on unsupported types
try {
// WebKit returns null on unsupported types
if ((new DOMParser).parseFromString("", "text/html")) {
// text/html parsing is natively supported
return;
}
} catch (ex) {}
window.usingPolyfillOnIE9 = false;
DOMParser_proto.parseFromString = function(markup, type) {
if (/^\s*text\/html\s*(?:;|$)/i.test(type)) {
var doc = document.implementation.createHTMLDocument("");
// Note: IE 9 doesn't support writing innerHTML on this node
try {
doc.head.innerHTML = '';
} catch (ex) {
// Note: exposing this only for testing purpose
window.usingPolyfillOnIE9 = true;
}
// Note: make this polyfill behave closer to native domparser
if (markup.indexOf('<!') > -1) {
try {
doc.documentElement.innerHTML = markup;
} catch (ex) {}
} else if (markup.indexOf('<title') > -1
|| markup.indexOf('<meta') > -1
|| markup.indexOf('<link') > -1
|| markup.indexOf('<script') > -1
|| markup.indexOf('<style') > -1)
{
try {
doc.head.innerHTML = markup;
} catch (ex) {}
} else {
doc.body.innerHTML = markup;
}
return doc;
} else {
return real_parseFromString.apply(this, arguments);
}
};
// Note: exposing this only for testing purpose
window.usingDomParserPolyfill = true;
}(DOMParser));