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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>CSS Values and Units Module Level 5: computed values for <position></title>
<link rel="author" title="Sam Weinig" href="mailto:sam@webkit.org">
<link rel="help" href="https://drafts.csswg.org/css-values-5/#position">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/css/support/computed-testcommon.js"></script>
</head>
<body>
<div id="container">
<div id="target"></div>
</div>
<script>
const property = "object-position";
test_computed_value(property, "10% center", "10% 50%");
test_computed_value(property, "right 30% top 60px", "70% 60px");
test_computed_value(property, "-20% -30px");
test_computed_value(property, "30px center", "30px 50%");
test_computed_value(property, "40px top", "40px 0%");
test_computed_value(property, "right 20% bottom 10%", "80% 90%");
test_computed_value(property, "right bottom", "100% 100%");
test_computed_value(property, "center 50px", "50% 50px");
test_computed_value(property, "center bottom", "50% 100%");
test_computed_value(property, "left center", "0% 50%");
test_computed_value(property, "left bottom", "0% 100%");
test_computed_value(property, "right 40%", "100% 40%");
test_computed_value(property, "center top", "50% 0%");
test_computed_value(property, "center", "50% 50%");
test_computed_value(property, "center center", "50% 50%");
test_computed_value(property, "right 20px bottom 10px", "calc(100% - 20px) calc(100% - 10px)");
test_computed_value(property, "x-start", "0% 50%");
test_computed_value(property, "x-start 10px", "0% 10px");
test_computed_value(property, "x-start 10% top 20px", "10% 20px");
test_computed_value(property, "x-end", "100% 50%");
test_computed_value(property, "x-end 10%", "100% 10%");
test_computed_value(property, "x-end 10px top 20px", "calc(100% - 10px) 20px");
test_computed_value(property, "y-start", "50% 0%");
test_computed_value(property, "10px y-start", "10px 0%");
test_computed_value(property, "left 10px y-start 20%", "10px 20%");
test_computed_value(property, "y-end", "50% 100%");
test_computed_value(property, "10px y-end", "10px 100%");
test_computed_value(property, "left 10px y-end 20%", "10px 80%");
function test_writing_modes(property) {
const writing_modes = [
{
styles: [
{"writing-mode": "horizontal-tb", "direction": "ltr"},
],
mappings: [
{ "x-start": "left" },
{ "x-end": "right" },
{ "y-start": "top" },
{ "y-end": "bottom" },
]
},
{
styles: [
{"writing-mode": "horizontal-tb", "direction": "rtl"},
],
mappings: [
{ "x-start": "right" },
{ "x-end": "left" },
{ "y-start": "top" },
{ "y-end": "bottom" },
]
},
{
styles: [
{"writing-mode": "vertical-rl", "direction": "rtl"},
{"writing-mode": "sideways-rl", "direction": "rtl"},
],
mappings: [
{ "x-start": "right" },
{ "x-end": "left" },
{ "y-start": "bottom" },
{ "y-end": "top" },
]
},
{
styles: [
{"writing-mode": "vertical-rl", "direction": "ltr"},
{"writing-mode": "sideways-rl", "direction": "ltr"},
],
mappings: [
{ "x-start": "right" },
{ "x-end": "left" },
{ "y-start": "top" },
{ "y-end": "bottom" },
]
},
{
styles: [
{"writing-mode": "vertical-lr", "direction": "rtl"},
],
mappings: [
{ "x-start": "left" },
{ "x-end": "right" },
{ "y-start": "bottom" },
{ "y-end": "top" },
]
},
{
styles: [
{"writing-mode": "sideways-lr", "direction": "ltr"},
],
mappings: [
{ "x-start": "left" },
{ "x-end": "right" },
{ "y-start": "bottom" },
{ "y-end": "top" },
]
},
{
styles: [
{"writing-mode": "vertical-lr", "direction": "ltr"},
],
mappings: [
{ "x-start": "left" },
{ "x-end": "right" },
{ "y-start": "top" },
{ "y-end": "bottom" },
]
},
{
styles: [
{"writing-mode": "sideways-lr", "direction": "rtl"},
],
mappings: [
{ "x-start": "left" },
{ "x-end": "right" },
{ "y-start": "top" },
{ "y-end": "bottom" },
]
},
];
function inner_test(property, specified, expected_to_match, container_styles) {
test(() => {
const target = document.getElementById('target');
assert_true(property in getComputedStyle(target), "'" + property + "' is a supported property for the computed style");
assert_true(CSS.supports(property, specified), "'" + specified + "' is a supported value for " + property + ".");
target.style[property] = '';
target.style[property] = expected_to_match;
let expectedValue = getComputedStyle(target)[property];
target.style[property] = '';
target.style[property] = specified;
let readValue = getComputedStyle(target)[property];
assert_equals(readValue, expectedValue, `'${specified}' is equal to the computed value of ''${expected_to_match}' which is '${expectedValue}'`);
if (readValue !== specified) {
target.style[property] = '';
target.style[property] = readValue;
assert_equals(getComputedStyle(target)[property], readValue,
'computed value should round-trip');
}
}, `Property ${property} value '${specified}' in mode '${container_styles.join(', ')}'`);
}
const container = document.getElementById('container');
for (let writing_mode of writing_modes) {
for (let style of writing_mode.styles) {
var container_styles = [];
for (let container_property in style) {
container.style[container_property] = style[container_property];
container_styles.push(`${container_property}: ${style[container_property]}`);
}
for (let mapping of writing_mode.mappings) {
for (let key in mapping) {
inner_test(property, key, mapping[key], container_styles);
}
}
}
}
}
test_writing_modes(property);
</script>
</body>
</html>
|
