blob: 79b69c6043aaac511b46b6044e945a266fedf985 [file] [log] [blame]
<!DOCTYPE html>
<script src="../../../resources/testharness.js"></script>
<script src="../../../resources/testharnessreport.js"></script>
<div id="testContainer">
<div id="outer">
<div id="inner">
<div id="innermost"></div>
</div>
</div>
</div>
<script>
var independent_properties = [
// Property name, Value 1, Value 2
["pointerEvents", "auto", "all"],
["visibility", "visible", "hidden"],
["whiteSpace", "normal", "nowrap"],
["borderCollapse", "separate", "collapse"],
];
independent_properties.forEach(function(test_data)
{
var propertyName = test_data[0];
var value1 = test_data[1];
var value2 = test_data[2];
test(function(t)
{
if (!window.internals)
assert_unreached('This test requires window.internals.');
// Create a nested div structure for the test.
var outer = document.createElement("div");
var inner = document.createElement("div");
var innermost = document.createElement("div");
testContainer.appendChild(outer);
outer.appendChild(inner);
inner.appendChild(innermost);
outer.offsetTop; // Force recalc.
assert_equals(internals.updateStyleAndReturnAffectedElementCount(), 0);
// Set the whole container to the first value.
testContainer.style[propertyName] = value1;
// All elements start as the first value.
assert_equals(getComputedStyle(outer)[propertyName], value1);
assert_equals(getComputedStyle(inner)[propertyName], value1);
assert_equals(getComputedStyle(innermost)[propertyName], value1);
outer.offsetTop; // Force recalc.
// Changing outer also changes inner and innermost.
outer.style[propertyName] = value2;
assert_equals(internals.updateStyleAndReturnAffectedElementCount(), 1, "Only outer should be recalced (3 without fast path)");
assert_equals(getComputedStyle(outer)[propertyName], value2);
assert_equals(getComputedStyle(inner)[propertyName], value2);
assert_equals(getComputedStyle(innermost)[propertyName], value2);
outer.offsetTop; // Force recalc.
// Changing inner to value1 changes all its children to that value.
inner.style[propertyName] = value1;
assert_equals(internals.updateStyleAndReturnAffectedElementCount(), 1, "Only inner should be recalced (2 without fast path)");
assert_equals(getComputedStyle(outer)[propertyName], value2);
assert_equals(getComputedStyle(inner)[propertyName], value1);
assert_equals(getComputedStyle(innermost)[propertyName], value1);
outer.offsetTop; // Force recalc.
// Clear for next test.
outer.remove();
}, "Changing " + propertyName + ", an independent inherited property, propagates correctly with a single style recalc.");
})
</script>