gecko-dev/dom/browser-element/mochitest/browserElement_DataURI.js

/* Any copyright is dedicated to the public domain.
   http://creativecommons.org/publicdomain/zero/1.0/ */

// Test that data: URIs work with mozbrowserlocationchange events.

"use strict";
SimpleTest.waitForExplicitFinish();
browserElementTestHelpers.setEnabledPref(true);
browserElementTestHelpers.addPermission();

function runTest() {
  var iframe1 = document.createElement('iframe');
  SpecialPowers.wrap(iframe1).mozbrowser = true;
  iframe1.id = 'iframe1';
  iframe1.addEventListener('mozbrowserloadend', function if1_loadend() {
    iframe1.removeEventListener('mozbrowserloadend', if1_loadend);
    ok(true, 'Got first loadend event.');
    SimpleTest.executeSoon(runTest2);
  });
  iframe1.src = browserElementTestHelpers.emptyPage1;
  document.body.appendChild(iframe1);

  var iframe2 = document.createElement('iframe');
  iframe2.id = 'iframe2';
  document.body.appendChild(iframe2);
}

function runTest2() {
  var iframe1 = document.getElementById('iframe1');
  var iframe2 = document.getElementById('iframe2');

  var sawLoadEnd = false;
  var sawLocationChange = false;

  iframe1.addEventListener('mozbrowserlocationchange', function(e) {
    ok(e.isTrusted, 'Event should be trusted.');
    ok(!sawLocationChange, 'Just one locationchange event.');
    ok(!sawLoadEnd, 'locationchange before load.');
    is(e.detail, 'data:text/html,1', "event's reported location");
    sawLocationChange = true;
  });

  iframe1.addEventListener('mozbrowserloadend', function() {
    ok(sawLocationChange, 'Loadend after locationchange.');
    ok(!sawLoadEnd, 'Just one loadend event.');
    sawLoadEnd = true;
  });

  function iframe2Load() {
    if (!sawLoadEnd || !sawLocationChange) {
      // Spin if iframe1 hasn't loaded yet.
      SimpleTest.executeSoon(iframe2Load);
      return;
    }
    ok(true, 'Got iframe2 load.');
    SimpleTest.finish();
  }
  iframe2.addEventListener('load', iframe2Load);


  iframe1.src = 'data:text/html,1';

  // Load something into iframe2 to check that it doesn't trigger a
  // locationchange for our iframe1 listener.
  iframe2.src = browserElementTestHelpers.emptyPage2;
}

addEventListener('testready', runTest);