Import r6923 from upstream hg supporting Firefox up to 22.0a1

[dactyl.git] / common / modules / dom-e4x.jsm

diff --git a/common/modules/dom-e4x.jsm b/common/modules/dom-e4x.jsm
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+++ b/common/modules/dom-e4x.jsm
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+// Copyright (c) 2007-2011 by Doug Kearns <dougkearns@gmail.com>
+// Copyright (c) 2008-2012 Kris Maglione <maglione.k@gmail.com>
+//
+// This work is licensed for reuse under an MIT license. Details are
+// given in the LICENSE.txt file included with this file.
+/* use strict */
+
+defineModule("dom", {
+    exports: ["fromXML"]
+});
+
+lazyRequire("highlight", ["highlight"]);
+
+var XBL = Namespace("xbl", "http://www.mozilla.org/xbl");
+var XHTML = Namespace("html", "http://www.w3.org/1999/xhtml");
+var XUL = Namespace("xul", "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");
+var NS = Namespace("dactyl", "http://vimperator.org/namespaces/liberator");
+
+function fromXML(node, doc, nodes) {
+    XML.ignoreWhitespace = XML.prettyPrinting = false;
+    if (typeof node === "string") // Sandboxes can't currently pass us XML objects.
+        node = XML(node);
+
+    if (node.length() != 1) {
+        let domnode = doc.createDocumentFragment();
+        for each (let child in node)
+            domnode.appendChild(fromXML(child, doc, nodes));
+        return domnode;
+    }
+
+    switch (node.nodeKind()) {
+    case "text":
+        return doc.createTextNode(String(node));
+    case "element":
+        let domnode = doc.createElementNS(node.namespace(), node.localName());
+
+        for each (let attr in node.@*::*)
+            if (attr.name() != "highlight")
+                domnode.setAttributeNS(attr.namespace(), attr.localName(), String(attr));
+
+        for each (let child in node.*::*)
+            domnode.appendChild(fromXML(child, doc, nodes));
+        if (nodes && node.@key)
+            nodes[node.@key] = domnode;
+
+        if ("@highlight" in node)
+            highlight.highlightNode(domnode, String(node.@highlight), nodes || true);
+        return domnode;
+    default:
+        return null;
+    }
+}
+