test_l10n_mutations.html

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<!DOCTYPE HTML>

<html>

<head>

  <meta charset="utf-8">

  <title>Test DOMLocalization's MutationObserver</title>

  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>

  <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css">

  <script type="application/javascript">

  "use strict";

  const l10nReg = new L10nRegistry();

  const fs = [

    { path: "/localization/en-US/mock.ftl", source: `

title = Hello World

title2 = Hello Another World

` },

];

  const source = L10nFileSource.createMock("test", "app", ["en-US"], "/localization/{locale}", fs);

  l10nReg.registerSources([source]);

  window.onload = async function() {

    SimpleTest.waitForExplicitFinish();

    const domLoc = new DOMLocalization(

[],

      false,

      l10nReg,

      ["en-US"],

);

    const h1 = document.querySelectorAll("h1")[0];

    domLoc.addResourceIds(["/mock.ftl"]);

    domLoc.connectRoot(document.body);

    await domLoc.translateRoots();

    is(h1.textContent, "Hello World");

    const mo = new MutationObserver(function onMutations() {

      is(h1.textContent, "Hello Another World");

      mo.disconnect();

      SimpleTest.finish();

});

    mo.observe(h1, { childList: true, characterData: true });

    domLoc.setAttributes(h1, "title2");

};

  </script>

</head>

<body>

  <div>

    <h1 data-l10n-id="title"></h1>

  </div>

</body>

</html>