diff options
| author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
|---|---|---|
| committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
| commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
| tree | 10027f336435511475e392454359edea8e25895d /toolkit/components/microformats/test/lib/domparser.js | |
| parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
| download | UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.gz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.lz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.xz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.zip | |
Add m-esr52 at 52.6.0
Diffstat (limited to 'toolkit/components/microformats/test/lib/domparser.js')
| -rw-r--r-- | toolkit/components/microformats/test/lib/domparser.js | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/toolkit/components/microformats/test/lib/domparser.js b/toolkit/components/microformats/test/lib/domparser.js new file mode 100644 index 000000000..bc342634a --- /dev/null +++ b/toolkit/components/microformats/test/lib/domparser.js @@ -0,0 +1,103 @@ + +// Based on https://gist.github.com/1129031 By Eli Grey, http://eligrey.com - Public domain. + +// DO NOT use https://developer.mozilla.org/en-US/docs/Web/API/DOMParser example polyfill +// as it does not work with earlier versions of Chrome + + +(function(DOMParser) { + 'use strict'; + + var DOMParser_proto; + var real_parseFromString; + var textHTML; // Flag for text/html support + var textXML; // Flag for text/xml support + var htmlElInnerHTML; // Flag for support for setting html element's innerHTML + + // Stop here if DOMParser not defined + if (!DOMParser) { + return; + } + + // Firefox, Opera and IE throw errors on unsupported types + try { + // WebKit returns null on unsupported types + textHTML = !!(new DOMParser()).parseFromString('', 'text/html'); + + } catch (er) { + textHTML = false; + } + + // If text/html supported, don't need to do anything. + if (textHTML) { + return; + } + + // Next try setting innerHTML of a created document + // IE 9 and lower will throw an error (can't set innerHTML of its HTML element) + try { + var doc = document.implementation.createHTMLDocument(''); + doc.documentElement.innerHTML = '<title></title><div></div>'; + htmlElInnerHTML = true; + + } catch (er) { + htmlElInnerHTML = false; + } + + // If if that failed, try text/xml + if (!htmlElInnerHTML) { + + try { + textXML = !!(new DOMParser()).parseFromString('', 'text/xml'); + + } catch (er) { + textHTML = false; + } + } + + // Mess with DOMParser.prototype (less than optimal...) if one of the above worked + // Assume can write to the prototype, if not, make this a stand alone function + if (DOMParser.prototype && (htmlElInnerHTML || textXML)) { + DOMParser_proto = DOMParser.prototype; + real_parseFromString = DOMParser_proto.parseFromString; + + DOMParser_proto.parseFromString = function (markup, type) { + + // Only do this if type is text/html + if (/^\s*text\/html\s*(?:;|$)/i.test(type)) { + var doc, doc_el, first_el; + + // Use innerHTML if supported + if (htmlElInnerHTML) { + doc = document.implementation.createHTMLDocument(''); + doc_el = doc.documentElement; + doc_el.innerHTML = markup; + first_el = doc_el.firstElementChild; + + // Otherwise use XML method + } else if (textXML) { + + // Make sure markup is wrapped in HTML tags + // Should probably allow for a DOCTYPE + if (!(/^<html.*html>$/i.test(markup))) { + markup = '<html>' + markup + '<\/html>'; + } + doc = (new DOMParser()).parseFromString(markup, 'text/xml'); + doc_el = doc.documentElement; + first_el = doc_el.firstElementChild; + } + + // Is this an entire document or a fragment? + if (doc_el.childElementCount === 1 && first_el.localName.toLowerCase() === 'html') { + doc.replaceChild(first_el, doc_el); + } + + return doc; + + // If not text/html, send as-is to host method + } else { + return real_parseFromString.apply(this, arguments); + } + }; + } +}(DOMParser)); |