1 files changed, 71 insertions, 0 deletions
diff --git a/services/sync/tps/extensions/mozmill/resource/modules/l10n.js b/services/sync/tps/extensions/mozmill/resource/modules/l10n.js
new file mode 100644
index 000000000..63a355421
--- /dev/null
+++ b/services/sync/tps/extensions/mozmill/resource/modules/l10n.js
@@ -0,0 +1,71 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, you can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/**
+ * @namespace Defines useful methods to work with localized content
+ */
+var l10n = exports;
+
+Cu.import("resource://gre/modules/Services.jsm");
+
+/**
+ * Retrieve the localized content for a given DTD entity
+ *
+ * @memberOf l10n
+ * @param {String[]} aDTDs Array of URLs for DTD files.
+ * @param {String} aEntityId ID of the entity to get the localized content of.
+ *
+ * @returns {String} Localized content
+ */
+function getEntity(aDTDs, aEntityId) {
+  // Add xhtml11.dtd to prevent missing entity errors with XHTML files
+  aDTDs.push("resource:///res/dtd/xhtml11.dtd");
+
+  // Build a string of external entities
+  var references = "";
+  for (i = 0; i < aDTDs.length; i++) {
+    var id = 'dtd' + i;
+    references += '<!ENTITY % ' + id + ' SYSTEM "' + aDTDs[i] + '">%' + id + ';';
+  }
+
+  var header = '<?xml version="1.0"?><!DOCTYPE elem [' + references + ']>';
+  var element = '<elem id="entity">&' + aEntityId + ';</elem>';
+  var content = header + element;
+
+  var parser = Cc["@mozilla.org/xmlextras/domparser;1"].
+               createInstance(Ci.nsIDOMParser);
+  var doc = parser.parseFromString(content, 'text/xml');
+  var node = doc.querySelector('elem[id="entity"]');
+
+  if (!node) {
+    throw new Error("Unkown entity '" + aEntityId + "'");
+  }
+
+  return node.textContent;
+}
+
+
+/**
+ * Retrieve the localized content for a given property
+ *
+ * @memberOf l10n
+ * @param {String} aURL URL of the .properties file.
+ * @param {String} aProperty The property to get the value of.
+ *
+ * @returns {String} Value of the requested property
+ */
+function getProperty(aURL, aProperty) {
+  var bundle = Services.strings.createBundle(aURL);
+
+  try {
+    return bundle.GetStringFromName(aProperty);
+  } catch (ex) {
+    throw new Error("Unkown property '" + aProperty + "'");
+  }
+}
+
+
+// Export of functions
+l10n.getEntity = getEntity;
+l10n.getProperty = getProperty;