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));