Issue 1663 - Moving first-run page to adblockplusui repository

i18n.js

Index: i18n.js
===================================================================
new file mode 100644
--- /dev/null
+++ b/i18n.js
@@ -0,0 +1,154 @@
+/*
+ * This file is part of Adblock Plus <http://adblockplus.org/>,
+ * Copyright (C) 2006-2014 Eyeo GmbH
+ *
+ * Adblock Plus is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 3 as
+ * published by the Free Software Foundation.
+ *
+ * Adblock Plus is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+var i18n;
+
+if (typeof ext != "undefined")
+{
+  i18n = ext.i18n;
+
+  document.documentElement.lang = ext.i18n.getMessage("@@ui_locale").replace(/_/g, "-");
+  document.documentElement.dir = ext.i18n.getMessage("@@bidi_dir");
+}
+else
+{
+  // Using Firefox' approach on i18n instead
+
+  // Randomize URI to work around bug 719376
+  var pageName = location.pathname.replace(/.*\//, '').replace(/\..*?$/, '');
+  var stringBundle = Services.strings.createBundle("chrome://adblockplus/locale/" + pageName +
+    ".properties?" + Math.random());
+
+  function getI18nMessage(key)
+  {
+    return {
+      "message": stringBundle.GetStringFromName(key)
+    };
+  }
+
+  i18n = (function()
+  {
+    function getText(message, args)
+    {
+      var text = message.message;
+      var placeholders = message.placeholders;
+
+      if (!args || !placeholders)
+        return text;
+
+      for (var key in placeholders)
+      {
+        var content = placeholders[key].content;
+        if (!content)
+          continue;
+
+        var index = parseInt(content.slice(1), 10);
+        if (isNaN(index))
+          continue;
+
+        var replacement = args[index - 1];
+        if (typeof replacement === "undefined")
+          continue;
+
+        text = text.split("$" + key + "$").join(replacement);
+      }
+      return text;
+    }
+
+    return {
+      getMessage: function(key, args)
+      {
+        try{
+          var message = getI18nMessage(key);
+          return getText(message, args);
+        }
+        catch(e)
+        {
+          Cu.reportError(e);
+          return "Missing translation: " + key;
+        }
+      }
+    };
+  })();
+
+  var Utils = require("utils").Utils;
+  document.documentElement.lang = Utils.appLocale;
+  document.documentElement.dir = Utils.chromeRegistry.isLocaleRTL("adblockplus") ? "rtl" : "ltr";
+}
+
+// Inserts i18n strings into matching elements. Any inner HTML already in the element is
+// parsed as JSON and used as parameters to substitute into placeholders in the i18n
+// message.
+i18n.setElementText = function(element, stringName, arguments)
+{
+  function processString(str, element)
+  {
+    var match = /^(.*?)<(a|strong)>(.*?)<\/\2>(.*)$/.exec(str);
+    if (match)
+    {
+      processString(match[1], element);
+
+      var e = document.createElement(match[2]);
+      processString(match[3], e);
+      element.appendChild(e);
+
+      processString(match[4], element);
+    }
+    else
+      element.appendChild(document.createTextNode(str));
+  }
+
+  while (element.lastChild)
+    element.removeChild(element.lastChild);
+  processString(i18n.getMessage(stringName, arguments), element);
+}
+
+// Loads i18n strings
+function loadI18nStrings()
+{
+  var nodes = document.querySelectorAll("[class^='i18n_']");
+  for(var i = 0; i < nodes.length; i++)
+  {
+    var node = nodes[i];
+    var arguments = JSON.parse("[" + node.textContent + "]");
+    if (arguments.length == 0)
+      arguments = null;
+
+    var className = node.className;
+    if (className instanceof SVGAnimatedString)
+      className = className.animVal;
+    var stringName = className.split(/\s/)[0].substring(5);
+
+    i18n.setElementText(node, stringName, arguments);
+  }
+}
+
+// Provides a more readable string of the current date and time
+function i18n_timeDateStrings(when)
+{
+  var d = new Date(when);
+  var timeString = d.toLocaleTimeString();
+
+  var now = new Date();
+  if (d.toDateString() == now.toDateString())
+    return [timeString];
+  else
+    return [timeString, d.toLocaleDateString()];
+}
+
+// Fill in the strings as soon as possible
+window.addEventListener("DOMContentLoaded", loadI18nStrings, true);