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<!DOCTYPE html>
<title>CSS Custom Media Queries: CSSOM</title>
<link rel="help" href=https://drafts.csswg.org/mediaqueries-5/#custom-mq-cssom/>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
test(t => {
let sheet = new CSSStyleSheet();
sheet.replaceSync(`
@custom-media --true true
`);
assert_equals(sheet.cssRules.length, 1);
let customMediaRule = sheet.cssRules[0];
assert_true(customMediaRule instanceof CSSCustomMediaRule);
assert_equals(customMediaRule.name, '--true');
assert_equals(customMediaRule.query, true);
}, 'CSSCustomMediaRule true');
test(t => {
let sheet = new CSSStyleSheet();
sheet.replaceSync(`
@custom-media --false false
`);
assert_equals(sheet.cssRules.length, 1);
let customMediaRule = sheet.cssRules[0];
assert_true(customMediaRule instanceof CSSCustomMediaRule);
assert_equals(customMediaRule.name, '--false');
assert_equals(customMediaRule.query, false);
}, 'CSSCustomMediaRule false');
test(t => {
let sheet = new CSSStyleSheet();
sheet.replaceSync(`
@custom-media --empty
`);
assert_equals(sheet.cssRules.length, 1);
let customMediaRule = sheet.cssRules[0];
assert_true(customMediaRule instanceof CSSCustomMediaRule);
assert_equals(customMediaRule.name, '--empty');
assert_not_equals(typeof customMediaRule.query, "boolean");
assert_equals(customMediaRule.query.length, 0);
}, 'CSSCustomMediaRule empty');
test(t => {
let sheet = new CSSStyleSheet();
sheet.replaceSync(`
@custom-media --query (color) and (--query)
`);
assert_equals(sheet.cssRules.length, 1);
let customMediaRule = sheet.cssRules[0];
assert_true(customMediaRule instanceof CSSCustomMediaRule);
assert_equals(customMediaRule.name, '--query');
assert_equals(customMediaRule.query.length, 1);
assert_equals(customMediaRule.query.mediaText, '(color) and (--query)');
}, 'CSSCustomMediaRule cycle');
test(t => {
let sheet = new CSSStyleSheet();
sheet.replaceSync(`
@custom-media --query (hover) and (width > 1024px)
`);
assert_equals(sheet.cssRules.length, 1);
let customMediaRule = sheet.cssRules[0];
assert_true(customMediaRule instanceof CSSCustomMediaRule);
assert_equals(customMediaRule.name, '--query');
assert_equals(customMediaRule.query.length, 1);
assert_equals(customMediaRule.query.mediaText, '(hover) and (width > 1024px)');
}, 'CSSCustomMediaRule simple');
test(t => {
let sheet = new CSSStyleSheet();
sheet.replaceSync(`
@custom-media --query (color), (hover)
`);
assert_equals(sheet.cssRules.length, 1);
let customMediaRule = sheet.cssRules[0];
assert_true(customMediaRule instanceof CSSCustomMediaRule);
assert_equals(customMediaRule.name, '--query');
assert_equals(customMediaRule.query.length, 2);
assert_equals(customMediaRule.query.mediaText, '(color), (hover)');
}, 'CSSCustomMediaRule multiple media queries');
test(t => {
let sheet = new CSSStyleSheet();
sheet.replaceSync(`
@custom-media --true (color), (hover)
`);
assert_equals(sheet.cssRules.length, 1);
let customMediaRule = sheet.cssRules[0];
assert_true(customMediaRule instanceof CSSCustomMediaRule);
assert_equals(customMediaRule.query.length, 2);
assert_equals(customMediaRule.query.mediaText, '(color), (hover)');
customMediaRule.query.mediaText = '(min-width: 100px)';
assert_equals(customMediaRule.query.length, 1);
assert_equals(customMediaRule.query.mediaText, '(min-width: 100px)');
}, 'CSSCustomMediaRule change mediaText');
test(t => {
let sheet = new CSSStyleSheet();
sheet.replaceSync(`
@custom-media --true (color)
`);
assert_equals(sheet.cssRules.length, 1);
let customMediaRule = sheet.cssRules[0];
assert_true(customMediaRule instanceof CSSCustomMediaRule);
assert_equals(customMediaRule.query.length, 1);
assert_equals(customMediaRule.query.mediaText, '(color)');
customMediaRule.query.appendMedium('(hover)');
assert_equals(customMediaRule.query.length, 2);
assert_equals(customMediaRule.query.mediaText, '(color), (hover)');
}, 'CSSCustomMediaRule appendMedium');
test(t => {
let sheet = new CSSStyleSheet();
sheet.replaceSync(`
@custom-media --true (color), (hover)
`);
assert_equals(sheet.cssRules.length, 1);
let customMediaRule = sheet.cssRules[0];
assert_true(customMediaRule instanceof CSSCustomMediaRule);
assert_equals(customMediaRule.query.length, 2);
assert_equals(customMediaRule.query.mediaText, '(color), (hover)');
customMediaRule.query.deleteMedium('(hover)');
assert_equals(customMediaRule.query.length, 1);
assert_equals(customMediaRule.query.mediaText, '(color)');
}, 'CSSCustomMediaRule deleteMedium');
test(t => {
let sheet = new CSSStyleSheet();
sheet.replaceSync(`
@custom-media --true (color)
`);
assert_equals(sheet.cssRules.length, 1);
let customMediaRule = sheet.cssRules[0];
assert_true(customMediaRule instanceof CSSCustomMediaRule);
assert_equals(customMediaRule.query.item(0), '(color)');
assert_equals(customMediaRule.query.item(1), null);
}, 'CSSCustomMediaRule item');
</script>
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