visibility-composited-squashing.html

<!DOCTYPE html>
<html>
<head>
  <style>
    .set {
      position: absolute;
      top: 8px;
    }
    .box {
      height: 100px;
      width: 100px;
      background-color: lightblue;
    }
    .squashed {
      height: 40px;
      width: 40px;
      background-color: lightgreen;
      position: absolute;
      left: 16px;
    }
    .hidden {
      visibility: hidden;
    }
    .visible {
      visibility: visible;
    }
    .composited {
      transform: translateZ(1px);
    }
  </style>
  <script>
    if (window.testRunner)
      testRunner.waitUntilDone();

    function runTest() {
      requestAnimationFrame(function() {
        requestAnimationFrame(function() {
          document.getElementById('target1').classList.add('visible');
          document.getElementById('target2').classList.add('visible');
          setTimeout(function() {
            if (window.testRunner)
              testRunner.notifyDone();
          });
        });
      });
    }
  </script>
</head>
<body onload="runTest()">
  <!-- This test checks that squashed Layers are painted even if not all
       of the Layers squahed into a given GraphicsLayer are visible. -->
  <div class="set">
    <div class="composited box"></div>
    <div class="squashed hidden" style="top: 4px"></div>
    <div id="target1" class="squashed hidden" style="top: 54px"></div>
  </div>

  <div class="set" style="top: 116px">
    <div class="composited box"></div>
    <div id="target2" class="squashed hidden" style="top: 4px"></div>
    <div class="squashed hidden" style="top: 54px"></div>
  </div>
</body>
</html>
chromium/third_party/blink/web_tests/compositing/squashing/visibility-composited-squashing.html
