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chromium/third_party/blink/web_tests/fast/forms/color/color-picker-color-well-selection-ring-no-scroll.html 

<!DOCTYPE html>
<meta name=fuzzy content="maxDifference=0-3; totalPixels=0-1000">
<script src='../../../resources/testharness.js'></script>
<script src='../../../resources/testharnessreport.js'></script>
<script src="../../../resources/testdriver.js"></script>
<script src="../../../resources/testdriver-vendor.js"></script>
<script src='../../../fast/forms/resources/picker-common.js'></script>

<input type='color' id='color' value='#0072A3'>
<script>
'use strict';

let t = async_test('Color picker: Focusing the color well\'s selection ring should not scroll it into view.');
t.step(() => {
  let colorControl = document.getElementById('color');
  openPicker(colorControl)
  .then(t.step_func_done(() => {
    internals.pagePopupWindow.focus();
    const popupDocument = internals.pagePopupWindow.document;
    const colorWellSelectionRing = popupDocument.querySelector('color-well > color-selection-ring');
    const colorWellSelectionRingOriginalRect = colorWellSelectionRing.getBoundingClientRect();
    eventSender.keyDown('Tab');
    assert_false(didColorWellSelectionRingMove(colorWellSelectionRingOriginalRect, colorWellSelectionRing.getBoundingClientRect()), "Color well selection ring should not have moved after it was focused via tab.");
    eventSender.keyDown('Tab');
    eventSender.keyDown('Tab', ['shiftKey']);
    assert_false(didColorWellSelectionRingMove(colorWellSelectionRingOriginalRect, colorWellSelectionRing.getBoundingClientRect()), "Color well selection ring should not have moved after it was focused via shift+tab.");
    eventSender.mouseMoveTo(colorWellSelectionRingOriginalRect.left + (colorWellSelectionRingOriginalRect.width / 2),
        colorWellSelectionRingOriginalRect.top + (colorWellSelectionRingOriginalRect.height / 2));
    eventSender.mouseDown();
    eventSender.mouseUp();
    assert_false(didColorWellSelectionRingMove(colorWellSelectionRingOriginalRect, colorWellSelectionRing.getBoundingClientRect()), "Color well selection ring should not have moved after it was focused via click.");
  }));
});

function didColorWellSelectionRingMove(colorWellSelectionRingOriginalRect, colorWellSelectionRingCurrentRect) {
  return ((colorWellSelectionRingOriginalRect.top !== colorWellSelectionRingCurrentRect.top) ||
      (colorWellSelectionRingOriginalRect.left !== colorWellSelectionRingCurrentRect.left) ||
      (colorWellSelectionRingOriginalRect.bottom !== colorWellSelectionRingCurrentRect.bottom) ||
      (colorWellSelectionRingOriginalRect.right !== colorWellSelectionRingCurrentRect.right));
}

</script>