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Issue #1826 - Support calc() in media queries

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Basilisk-Dev 2026-05-05 21:18:24 -04:00 • committed by EAZYBLACK
commit adde59de74
3 changed files with 14 additions and 5 deletions
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11
layout/style/test/test_media_queries.html
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@ -237,6 +237,7 @@ function run() {
expression_should_be_parseable(feature + ": 0");
expression_should_be_parseable(feature + ": 0px");
expression_should_be_parseable(feature + ": 0em");
expression_should_be_parseable(feature + ": calc(0px + 0em)");
expression_should_be_parseable(feature + ": -0");
expression_should_be_parseable("min-" + feature + ": -0");
expression_should_be_parseable("max-" + feature + ": -0");
@ -244,6 +245,7 @@ function run() {
expression_should_be_parseable(feature + ": 1px");
expression_should_be_parseable(feature + ": 0.001mm");
expression_should_be_parseable(feature + ": 100000px");
expression_should_not_be_parseable(feature + ": calc(1px + 1%)");
expression_should_not_be_parseable(feature + ": -1px");
expression_should_not_be_parseable("min-" + feature + ": -1px");
expression_should_not_be_parseable("max-" + feature + ": -1px");
@ -263,8 +265,9 @@ function run() {
var content_div = document.getElementById("content");
content_div.style.font = "initial";
var em_size =
getComputedStyle(content_div, "").fontSize.match(/^(\d+)px$/)[1];
var em_size = parseFloat(
getComputedStyle(content_div, "").fontSize.match(/^(\d+)px$/)[1]
);
// in this test, assume the common underlying implementation is correct
var width_val = 117; // pick two not-too-round numbers
@ -282,7 +285,11 @@ function run() {
for (feature in features) {
var value = features[feature];
should_apply("all and (" + feature + ": " + value + "px)");
should_apply("all and (" + feature + ": calc(" +
(value - em_size) + "px + 1em))");
should_not_apply("all and (" + feature + ": " + (value + 1) + "px)");
should_not_apply("all and (" + feature + ": calc(" +
(value - em_size + 1) + "px + 1em))");
should_not_apply("all and (" + feature + ": " + (value - 1) + "px)");
should_apply("all and (min-" + feature + ": " + value + "px)");
should_not_apply("all and (min-" + feature + ": " + (value + 1) + "px)");