102 lines
4.4 KiB
HTML
102 lines
4.4 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<title>width, height, inline-size and block-size</title>
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<link rel="help" href="https://w3c.github.io/mathml-core/#layout-algorithms">
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<meta name="assert" content="Verify that width, height, inline-size and block-size properties set the size of the content box.">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="/mathml/support/feature-detection.js"></script>
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<script src="/mathml/support/mathml-fragments.js"></script>
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<script src="/mathml/support/box-comparison.js"></script>
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<style>
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/* Revert style specified in the UA style sheet that changes box size. */
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merror { border: 0; }
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mfrac { padding: 0; }
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</style>
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<script>
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var epsilon = 1;
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setup({ explicit_done: true });
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window.addEventListener("load", runTests);
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function runTests() {
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for (tag in MathMLFragments) {
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if (!FragmentHelper.isValidChildOfMrow(tag))
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continue;
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document.body.insertAdjacentHTML("beforeend", `<div style="position: absolute;"><math><mrow>${MathMLFragments[tag]}</mrow></math></div>`);
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let div = document.body.lastElementChild;
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let element = FragmentHelper.element(div.firstElementChild);
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FragmentHelper.forceNonEmptyDescendants(element);
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test(function() {
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assert_true(MathMLFeatureDetection[`has_${tag}`](), `${tag} is supported`);
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var style = `width: 500px; height: 400px;`;
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element.setAttribute("style", style);
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let box = element.getBoundingClientRect();
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assert_approx_equals(box.width, 500, epsilon, "width");
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assert_approx_equals(box.height, 400, epsilon, "height");
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}, `width and height properties on ${tag}`);
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test(function() {
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assert_true(MathMLFeatureDetection[`has_${tag}`](), `${tag} is supported`);
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var style = `inline-size: 600px; block-size: 700px;`;
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element.setAttribute("style", style);
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let box = element.getBoundingClientRect();
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assert_approx_equals(box.width, 600, epsilon, "width");
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assert_approx_equals(box.height, 700, epsilon, "height");
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}, `inline-size and block-size properties on ${tag}`);
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// Test that if we specify a size smaller than the content, then
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// it is used too. Note that we skip mtable, which follows CSS
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// tables rules and behave differently in that case.
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if (tag != "mtable") {
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test(function() {
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assert_true(MathMLFeatureDetection[`has_${tag}`](), `${tag} is supported`);
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var style = `width: 2px; height: 1px;`;
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element.setAttribute("style", style);
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let box = element.getBoundingClientRect();
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assert_approx_equals(box.width, 2, epsilon, "width");
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assert_approx_equals(box.height, 1, epsilon, "height");
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}, `width and height properties on ${tag} (content overflowing)`);
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}
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div.style = "display: none;"; // Hide the div after measurement.
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document.body.insertAdjacentHTML("beforeend", `<div style="position: absolute;"><div style="display: inline-block"><math><mrow>${MathMLFragments[tag]}</mrow></math></div></div>`);
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let shrinkWrapDiv = document.body.lastElementChild.firstElementChild;
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element = FragmentHelper.element(shrinkWrapDiv.firstElementChild);
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FragmentHelper.forceNonEmptyDescendants(element);
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test(function() {
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assert_true(MathMLFeatureDetection[`has_${tag}`](), `${tag} is supported`);
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var style = `width: 300px;`;
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element.setAttribute("style", style);
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let refPreferredWidth = 300;
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// In the case of mo, spacing is added around the element so that it is included
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// in the preferred width calculation, which should be the sum of lspace, rspace and width.
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if (tag === "mo") {
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element.setAttribute("lspace", "50px");
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element.setAttribute("rspace", "30px");
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refPreferredWidth = 380;
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}
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let box = shrinkWrapDiv.getBoundingClientRect();
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assert_approx_equals(box.width, refPreferredWidth, epsilon);
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}, `width property on ${tag} (preferred width)`);
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div.style = "display: none;"; // Hide the div after measurement.
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}
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done();
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}
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</script>
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</head>
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<body>
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<div id="log"></div>
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</body>
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</html>
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