test_bug1264380.html

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<html>

<head>

  <title>Test the dragstart event on the anchor in side shadow DOM</title>

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

  <script src="/tests/SimpleTest/SimpleTest.js"></script>

  <script src="/tests/SimpleTest/EventUtils.js"></script>

<script>

async function runTests()

  let dragService = SpecialPowers.Cc["@mozilla.org/widget/dragservice;1"].

    getService(SpecialPowers.Ci.nsIDragService);

  let iframe = document.querySelector("iframe");

  let iframeDoc = iframe.contentDocument;

  let iframeWin = iframe.contentWindow;

  let shadow = iframeDoc.querySelector('#outer').attachShadow({mode: 'open'});

  let target = iframeDoc.createElement('a');

  target.textContent = "Drag me if you can!";

  const URL = "http://www.mozilla.org/";

  target.href = URL;

  shadow.appendChild(target);

  // Some of the drag data we don't actually care about for this test,

  // so we'll use this comparator function to ignore them.

  function ignoreFunc(actualData, expectedData) {

    return true;

  const EXPECTED_DRAG_DATA = [[{

    type: "text/x-moz-url",

    data: "",

    eqTest: ignoreFunc,

  }, {

    type: "text/x-moz-url-data",

    data: "",

    eqTest: ignoreFunc,

  }, {

    type: "text/x-moz-url-desc",

    data: "",

    eqTest: ignoreFunc,

  }, {

    type: "text/uri-list",

    data: URL,

  }, {

    type: "text/_moz_htmlinfo",

    data: "",

    eqTest: ignoreFunc,

  }, {

    type: "text/html",

    data: "",

    eqTest: ignoreFunc,

  }, {

    type: "text/plain",

    data: URL,

  }]];

  let result = await synthesizePlainDragAndCancel(

      srcElement: target,

      srcWindow: iframeWin,

      finalY: -10,  // Avoid clicking the link

},

    EXPECTED_DRAG_DATA);

  ok(result === true, "Should have gotten the expected drag data.");

  SimpleTest.finish();

SimpleTest.waitForExplicitFinish();

window.onload = () => {

  SimpleTest.waitForFocus(runTests);

};

</script>

<body>

  <iframe srcdoc='<div id="outer"/>'></iframe>

</body>

</html>