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33 lines
2 KiB
HTML
33 lines
2 KiB
HTML
<!DOCTYPE HTML>
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<link rel="help" href="https://drafts.css-houdini.org/css-properties-values-api/#dom-propertydescriptor-initialvalue" />
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<link rel="help" href="https://drafts.css-houdini.org/css-properties-values-api/#register-a-custom-property" />
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<style>
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#target {
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background: var(--inherited-color);
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color: var(--non-inherited-color);
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}
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</style>
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<div id=target></div>
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<script>
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CSS.registerProperty({name: '--length', syntax: '<length>', initialValue: 'calc(10px + 15px)'});
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CSS.registerProperty({name: '--length-percentage', syntax: '<length-percentage>', initialValue: 'calc(1in + 10% + 4px)'});
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CSS.registerProperty({name: '--inherited-color', syntax: '<color>', initialValue: 'pink', inherits: true});
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CSS.registerProperty({name: '--non-inherited-color', syntax: '<color>', initialValue: 'purple'});
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CSS.registerProperty({name: '--single-transform-list', syntax: '<transform-list>', initialValue: 'scale(calc(2 + 2))'});
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CSS.registerProperty({name: '--multiple-transform-list', syntax: '<transform-list>', initialValue: 'scale(calc(2 + 1)) translateX(calc(3px + 1px))'});
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test(function() {
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computedStyle = getComputedStyle(target);
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assert_equals(computedStyle.getPropertyValue('--length'), '25px');
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assert_equals(computedStyle.getPropertyValue('--length-percentage'), 'calc(100px + 10%)');
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assert_equals(computedStyle.getPropertyValue('--inherited-color'), 'pink');
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assert_equals(computedStyle.getPropertyValue('--non-inherited-color'), 'purple');
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assert_equals(computedStyle.getPropertyValue('--single-transform-list'), 'scale(4)');
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assert_equals(computedStyle.getPropertyValue('--multiple-transform-list'), 'scale(3) translateX(4px)');
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assert_equals(computedStyle.backgroundColor, 'rgb(255, 192, 203)');
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assert_equals(computedStyle.color, 'rgb(128, 0, 128)');
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}, "Initial values of registered properties can be referenced when no custom properties are explicitly set.");
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</script>
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