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<!doctype html>
<meta charset=utf-8>
<title>Test handling of attributes that map to dimension properties</title>
<meta name="timeout" content="long">
<link rel="help"
href="https://html.spec.whatwg.org/multipage/rendering.html#maps-to-the-dimension-property">
<link rel="help"
href="https://html.spec.whatwg.org/multipage/rendering.html#maps-to-the-dimension-property-(ignoring-zero)">
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<body>
<!-- We need a place to put our elements so they're bound to a document and
have computed style, but we don't want percentages resolved to lengths,
so need to make sure they have no CSS boxes -->
<div id="container" style="display: none"></div>
<script>
/*
* This test tests
*
* https://html.spec.whatwg.org/multipage/rendering.html#maps-to-the-dimension-property
* and
* https://html.spec.whatwg.org/multipage/rendering.html#maps-to-the-dimension-property-(ignoring-zero)
* for various elements and various values.
*/
/*
* Array of input/output pairs. The input is the string to use as the
* attribute value. The output is the string expected as the computed style
* for the relevant CSS property.
*/
const valid_values = [
// Valid values
[ "200", "200px" ],
[ "1007", "1007px" ],
[ " 00523 ", "523px" ],
[ "200.25", "200.25px" ],
[ "200.7", "200.7px" ],
[ "200.", "200px" ],
[ "200in", "200px" ],
[ "200.25in", "200.25px" ],
[ "200 %", "200px" ],
[ "200 abc", "200px" ],
[ "200%", "200%" ],
[ "200%abc", "200%" ],
[ "200.25%", "200.25%" ],
[ "200.%", "200%" ],
[ "20.25e2", "20.25px" ],
[ "20.25E2", "20.25px" ],
];
/*
* Values that are only valid for the not-ignoring-zero case.
*/
const zero_values = [
[ "0", "0px" ],
[ "0%", "0%" ],
[ "0px", "0px" ],
];
/*
* Array of invalid values. These should lead to the default value of the
* relevant CSS property.
*/
const invalid_values = [
"-0",
"-0%",
"-200",
"-200px",
" -200",
"+-200",
"-+200",
"-200%",
"+200",
" +200in ",
" +200.25in ",
"+200%",
" +200.25% ",
" +200.25%abc",
"+0",
"+0%",
".",
".%",
".x",
".5",
".5%"
];
const valid_values_with_0 =
valid_values.concat(zero_values);
const invalid_values_with_0 =
invalid_values.concat(zero_values.map((v) => v[0]));
function newElem(name) {
return () => document.createElement(name);
}
function newImageInput() {
return () => {
var elem = newElem("input")();
elem.type = "image";
return elem;
}
}
function newImgSource() {
return () => {
var elem = newElem("source")();
elem.setAttribute("srcset", "/images/green-100x50.png");
return elem;
}
}
/*
* Array of tests. Each test consists of the following information:
*
* 1) An element creation function.
* 2) The name of the attribute to set
* 3) The name of the CSS property to get.
* 4) A boolean indicating whether 0 is a valid value for the dimension
* attribute.
*/
const tests = [
[ newElem("hr"), "width", "width", true ],
[ newElem("iframe"), "width", "width", true ],
[ newElem("iframe"), "height", "height", true ],
[ newImageInput(), "width", "width", true ],
[ newImageInput(), "height", "height", true ],
[ newElem("marquee"), "width", "width", true ],
[ newElem("marquee"), "height", "height", true ],
[ newElem("video"), "width", "width", true ],
[ newElem("video"), "height", "height", true ],
[ newElem("object"), "width", "width", true ],
[ newElem("object"), "height", "height", true ],
[ newElem("embed"), "width", "width", true ],
[ newElem("embed"), "height", "height", true ],
[ newElem("img"), "width", "width", true ],
[ newElem("img"), "height", "height", true ],
[ newElem("td"), "width", "width", false ],
[ newElem("td"), "height", "height", false ],
// https://github.com/whatwg/html/issues/4715 tracks the fact that for
// <table width> and <table height> the "0 is valid" boolean should probably
// be true.
[ newElem("table"), "width", "width", false ],
[ newElem("table"), "height", "height", false ],
// https://github.com/whatwg/html/issues/4716 tracks the fact that for the
// <tr height> case that "0 is valid" boolean should probably be true.
[ newElem("tr"), "height", "height", false ],
// https://github.com/whatwg/html/issues/4717 tracks the fact that for the
// <col width> case that "0 is valid" boolean should probably be true.
[ newElem("col"), "width", "width", false ],
[ newElem("embed"), "hspace", "marginLeft", true ],
[ newElem("embed"), "hspace", "marginRight", true ],
[ newElem("embed"), "vspace", "marginTop", true ],
[ newElem("embed"), "vspace", "marginBottom", true ],
[ newElem("img"), "hspace", "marginLeft", true ],
[ newElem("img"), "hspace", "marginRight", true ],
[ newElem("img"), "vspace", "marginTop", true ],
[ newElem("img"), "vspace", "marginBottom", true ],
[ newElem("object"), "hspace", "marginLeft", true ],
[ newElem("object"), "hspace", "marginRight", true ],
[ newElem("object"), "vspace", "marginTop", true ],
[ newElem("object"), "vspace", "marginBottom", true ],
[ newImageInput(), "hspace", "marginLeft", true ],
[ newImageInput(), "hspace", "marginRight", true ],
[ newImageInput(), "vspace", "marginTop", true ],
[ newImageInput(), "vspace", "marginBottom", true ],
[ newElem("marquee"), "hspace", "marginLeft", true ],
[ newElem("marquee"), "hspace", "marginRight", true ],
[ newElem("marquee"), "vspace", "marginTop", true ],
[ newElem("marquee"), "vspace", "marginBottom", true ],
// <source width> is mapped to <img> width if both are in <picture>.
[ newImgSource(), "width", "width", true, newElem("img"), newElem("picture") ],
// <source height> is mapped to <img> height if both are in <picture>.
[ newImgSource(), "height", "height", true, newElem("img"), newElem("picture") ],
];
function style(element) {
return element.ownerDocument.defaultView.getComputedStyle(element);
}
const container = document.getElementById("container");
for (let [ctor, attr, prop, zero_allowed, mappedElemCtor, containerCtor] of tests) {
let valid, invalid;
if (zero_allowed) {
valid = valid_values_with_0;
invalid = invalid_values;
} else {
valid = valid_values;
invalid = invalid_values_with_0;
}
let elemContainer = null;
if (!!containerCtor) {
elemContainer = containerCtor();
container.appendChild(elemContainer);
} else {
elemContainer = container;
}
let runTest = (value, expected) => {
let elem = ctor();
let mappedElem = !!mappedElemCtor ? mappedElemCtor() : elem;
test(function() {
this.add_cleanup(() => {
elem.remove();
if (!!mappedElemCtor) {
mappedElem.remove();
}
});
elem.setAttribute(attr, value);
assert_equals(elem.getAttribute(attr), value);
elemContainer.appendChild(elem);
if (!!mappedElemCtor) {
elemContainer.appendChild(mappedElem);
}
assert_equals(style(mappedElem)[prop], expected);
}, `<${elem.localName} ${attr}="${value}"> mapping to ` +
`<${mappedElem.localName}> ${prop} property`);
}
for (let [value, result] of valid) {
runTest(value, result);
}
let default_elem = !!mappedElemCtor ? mappedElemCtor() : ctor();
elemContainer.appendChild(default_elem);
let defaultVal = style(default_elem)[prop];
default_elem.remove();
for (let value of invalid) {
runTest(value, defaultVal);
}
if (!!containerCtor) {
elemContainer.remove();
}
}
</script>
</body>
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