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<!DOCTYPE html>
<title>Test for Bug 922669</title>
<script src="/MochiKit/MochiKit.js"></script>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script src="/tests/SimpleTest/EventUtils.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css">

<iframe src="data:text/html,<!DOCTYPE html><style></style><div></div>"></iframe>

<script>
var gIsAndroid = navigator.appVersion.indexOf("Android") != -1;

var gTests = [
  // Interact with the ::-moz-progress-bar.
  { markup:                 '<progress value="75" max="100"></progress>',
    pseudoelement:          '::-moz-progress-bar',
    common_style:           'progress { -moz-appearance: none; } progress::-moz-progress-bar { background: black; }',
    hover_test_style:       'progress::-moz-progress-bar:hover { background: green; }',
    hover_reference_style:  'progress::-moz-progress-bar { background: green; }',
    active_test_style:      'progress::-moz-progress-bar:active { background: lime; }',
    active_reference_style: 'progress::-moz-progress-bar { background: lime; }' },

  // Interact with the part of the <progress> not covered by the ::-moz-progress-bar.
  { markup:                 '<progress value="25" max="100"></progress>',
    pseudoelement:          '::-moz-progress-bar',
    common_style:           'progress { -moz-appearance: none; } progress::-moz-progress-bar { background: black; }',
    hover_test_style:       'progress::-moz-progress-bar { background: green; } progress::-moz-progress-bar:hover { background: red; }',
    hover_reference_style:  'progress::-moz-progress-bar { background: green; }',
    active_test_style:      'progress::-moz-progress-bar { background: lime; } progress::-moz-progress-bar:active { background: red; }',
    active_reference_style: 'progress::-moz-progress-bar { background: lime; }' },

  // Interact with the ::-moz-range-thumb.
  { markup:                 '<input type="range" value="50" min="0" max="100">',
    pseudoelement:          '::-moz-range-thumb',
    common_style:           'input { -moz-appearance: none; } input::-moz-range-thumb { background: black; }',
    hover_test_style:       'input::-moz-range-thumb:hover { background: green; }',
    hover_reference_style:  'input::-moz-range-thumb { background: green; }',
    active_test_style:      'input::-moz-range-thumb:active { background: lime; }',
    active_reference_style: 'input::-moz-range-thumb { background: lime; }' },

  // Interact with the part of the <input type="range"> not covered by the ::-moz-range-thumb.
  { markup:                 '<input type="range" value="25" min="0" max="100">',
    pseudoelement:          '::-moz-range-thumb',
    common_style:           'input { -moz-appearance: none; } input::-moz-range-thumb { background: black; }',
    hover_test_style:       'input::-moz-range-thumb { background: green; } input::-moz-range-thumb:hover { background: red; }',
    hover_reference_style:  'input::-moz-range-thumb { background: green; }',
    active_test_style:      'input::-moz-range-thumb { background: lime; } input::-moz-range-thumb:active { background: red; }',
    active_reference_style: 'input::-moz-range-thumb { background: lime; }' },

  // Interact with the ::-moz-meter-bar.
  { markup:                 '<meter value="75" min="0" max="100"></meter>',
    pseudoelement:          '::-moz-meter-bar',
    common_style:           'meter { -moz-appearance: none; } meter::-moz-meter-bar { background: black; }',
    hover_test_style:       'meter::-moz-meter-bar:hover { background: green; }',
    hover_reference_style:  'meter::-moz-meter-bar { background: green; }',
    active_test_style:      'meter::-moz-meter-bar:active { background: lime; }',
    active_reference_style: 'meter::-moz-meter-bar { background: lime; }' },

  // Interact with the part of the <meter> not covered by the ::-moz-meter-bar.
  { markup:                 '<meter value="25" min="0" max="100"></meter>',
    pseudoelement:          '::-moz-meter-bar',
    common_style:           'meter { -moz-appearance: none; } meter::-moz-meter-bar { background: black; }',
    hover_test_style:       'meter::-moz-meter-bar { background: green; } meter::-moz-meter-bar:hover { background: red; }',
    hover_reference_style:  'meter::-moz-meter-bar { background: green; }',
    active_test_style:      'meter::-moz-meter-bar { background: lime; } meter::-moz-meter-bar:active { background: red; }',
    active_reference_style: 'meter::-moz-meter-bar { background: lime; }' },

  // Do the same as the "Interact with the ::-moz-range-thumb" subtest above,
  // but with selectors that include descendant operators.
  { markup:                 '<input type="range" value="50" min="0" max="100">',
    pseudoelement:          '::-moz-range-thumb',
    common_style:           'body input { -moz-appearance: none; } input::-moz-range-thumb { background: black; }',
    hover_test_style:       'body input::-moz-range-thumb:hover { background: green; }',
    hover_reference_style:  'body input::-moz-range-thumb { background: green; }',
    active_test_style:      'body input::-moz-range-thumb:active { background: lime; }',
    active_reference_style: 'body input::-moz-range-thumb { background: lime; }' },

  // ::-moz-placeholder can't be tested, since the UA style sheet sets it to
  // be pointer-events:none.
];

function countPixelDifferences(aCanvas1, aCanvas2) {
  var ctx1 = aCanvas1.getContext("2d");
  var ctx2 = aCanvas2.getContext("2d");
  var data1 = ctx1.getImageData(0, 0, aCanvas1.width, aCanvas1.height);
  var data2 = ctx2.getImageData(0, 0, aCanvas2.width, aCanvas2.height);
  var n = 0;
  for (var i = 0; i < data1.width * data2.height * 4; i += 4) {
    if (data1.data[i] != data2.data[i] ||
        data1.data[i + 1] != data2.data[i + 1] ||
        data1.data[i + 2] != data2.data[i + 2] ||
        data1.data[i + 3] != data2.data[i + 3]) {
      n++;
    }
  }
  return n;
}

function runTests() {
  var iframe = document.querySelector("iframe");
  var style = iframe.contentDocument.querySelector("style");
  var div = iframe.contentDocument.querySelector("div");
  var canvas1, canvas2;

  function runTestPart1(aIndex) {
    var test = gTests[aIndex];
    div.innerHTML = test.markup;
    style.textContent = test.common_style;
    is(getComputedStyle(div.firstChild, test.pseudoelement).backgroundColor, "rgb(0, 0, 0)", "subtest #" + aIndex + ", computed style");
    style.textContent += test.hover_test_style;
    synthesizeMouseAtCenter(div.lastChild, { type: 'mouseover' }, iframe.contentWindow);
  }

  function runTestPart2(aIndex) {
    var test = gTests[aIndex];
    canvas1 = SpecialPowers.snapshotWindow(iframe.contentWindow, false);
    style.textContent = test.common_style + test.hover_reference_style;
  }

  function runTestPart3(aIndex) {
    var test = gTests[aIndex];
    canvas2 = SpecialPowers.snapshotWindow(iframe.contentWindow, false);
    ok(canvas1.width == canvas2.width && canvas1.height == canvas2.height, "hover subtest #" + aIndex + ", canvas sizes equal");
    is(countPixelDifferences(canvas1, canvas2), 0, "hover subtest #" + aIndex + ", number of different pixels");
    is(getComputedStyle(div.firstChild, test.pseudoelement).backgroundColor, "rgb(0, 128, 0)", "hover subtest #" + aIndex + ", computed style");

    if (!gIsAndroid) {
      style.textContent = test.common_style + test.active_test_style;
      synthesizeMouseAtCenter(div.lastChild, { type: 'mousedown' }, iframe.contentWindow);
    }
  }

  function runTestPart4(aIndex) {
    if (!gIsAndroid) {
      var test = gTests[aIndex];
      canvas1 = SpecialPowers.snapshotWindow(iframe.contentWindow, false);
      synthesizeMouseAtCenter(div.lastChild, { type: 'mouseup' }, iframe.contentWindow);
      style.textContent = test.common_style + test.active_reference_style;
    }
  }

  function runTestPart5(aIndex) {
    if (!gIsAndroid) {
      var test = gTests[aIndex];
      canvas2 = SpecialPowers.snapshotWindow(iframe.contentWindow, false);
      ok(canvas1.width == canvas2.width && canvas1.height == canvas2.height, "active subtest #" + aIndex + ", canvas sizes equal");
      is(countPixelDifferences(canvas1, canvas2), 0, "active subtest #" + aIndex + ", number of different pixels");
      is(getComputedStyle(div.firstChild, test.pseudoelement).backgroundColor, "rgb(0, 255, 0)", "active subtest #" + aIndex + ", computed style");
    }
  }

  for (var i = 0; i < gTests.length; i++) {
    setTimeout(runTestPart1, 0, i);
    setTimeout(runTestPart2, 0, i);
    setTimeout(runTestPart3, 0, i);
    setTimeout(runTestPart4, 0, i);
    setTimeout(runTestPart5, 0, i);
  }
  setTimeout(function() { SimpleTest.finish(); }, 0);
}

SimpleTest.waitForExplicitFinish();
window.addEventListener("load", runTests);
</script>