| <!DOCTYPE html> |
| <meta charset="UTF-8"> |
| <title>line-height interpolation</title> |
| <link rel="help" href="https://www.w3.org/TR/CSS2/visudet.html#propdef-line-height"> |
| <meta name="assert" content="line-height supports animation by computation"> |
| <meta name="timeout" content="long"> |
| |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/css/support/interpolation-testcommon.js"></script> |
| |
| <style> |
| .parent { |
| line-height: 30px; |
| } |
| |
| .target { |
| display: inline-block; |
| font: 20px sans-serif; |
| line-height: 10px; |
| } |
| |
| .expected { |
| color: green; |
| margin-right: 30px; |
| } |
| </style> |
| <body> |
| <template id="target-template"> |
| <p> |
| v<br />v |
| </p> |
| </template> |
| </body> |
| <script> |
| test_interpolation({ |
| property: 'line-height', |
| from: neutralKeyframe, |
| to: '20px', |
| }, [ |
| {at: -1, expect: '0px'}, |
| {at: -0.3, expect: '7px'}, |
| {at: 0, expect: '10px'}, |
| {at: 0.3, expect: '13px'}, |
| {at: 0.6, expect: '16px'}, |
| {at: 1, expect: '20px'}, |
| {at: 1.5, expect: '25px'}, |
| ]); |
| |
| test_no_interpolation({ |
| property: 'line-height', |
| from: 'initial', |
| to: '20px', |
| }); |
| |
| test_interpolation({ |
| property: 'line-height', |
| from: 'inherit', |
| to: '20px', |
| }, [ |
| {at: -1, expect: '40px'}, |
| {at: -0.3, expect: '33px'}, |
| {at: 0, expect: '30px'}, |
| {at: 0.3, expect: '27px'}, |
| {at: 0.6, expect: '24px'}, |
| {at: 1, expect: '20px'}, |
| {at: 1.5, expect: '15px'}, |
| ]); |
| |
| test_interpolation({ |
| property: 'line-height', |
| from: 'unset', |
| to: '20px', |
| }, [ |
| {at: -1, expect: '40px'}, |
| {at: -0.3, expect: '33px'}, |
| {at: 0, expect: '30px'}, |
| {at: 0.3, expect: '27px'}, |
| {at: 0.6, expect: '24px'}, |
| {at: 1, expect: '20px'}, |
| {at: 1.5, expect: '15px'}, |
| ]); |
| |
| test_interpolation({ |
| property: 'line-height', |
| from: '4', |
| to: '14', |
| }, [ |
| {at: -1, expect: '0'}, |
| {at: -0.3, expect: '1'}, |
| {at: 0, expect: '4'}, |
| {at: 0.3, expect: '7'}, |
| {at: 0.6, expect: '10'}, |
| {at: 1, expect: '14'}, |
| {at: 1.5, expect: '19'}, |
| ]); |
| |
| test_interpolation({ |
| property: 'line-height', |
| from: '4px', |
| to: '14px', |
| }, [ |
| {at: -1, expect: '0px'}, |
| {at: -0.3, expect: '1px'}, |
| {at: 0, expect: '4px'}, |
| {at: 0.3, expect: '7px'}, |
| {at: 0.6, expect: '10px'}, |
| {at: 1, expect: '14px'}, |
| {at: 1.5, expect: '19px'}, |
| ]); |
| |
| test_interpolation({ |
| property: 'line-height', |
| from: 'normal', |
| to: 'normal', |
| }, [ |
| {at: -0.3, expect: 'normal'}, |
| {at: 0, expect: 'normal'}, |
| {at: 0.3, expect: 'normal'}, |
| {at: 0.6, expect: 'normal'}, |
| {at: 1, expect: 'normal'}, |
| {at: 1.5, expect: 'normal'}, |
| ]); |
| |
| test_no_interpolation({ |
| property: 'line-height', |
| from: '4', |
| to: '14px', |
| }); |
| |
| test_no_interpolation({ |
| property: 'line-height', |
| from: '14px', |
| to: 'normal', |
| }); |
| |
| test_no_interpolation({ |
| property: 'line-height', |
| from: 'normal', |
| to: '4', |
| }); |
| |
| test_no_interpolation({ |
| property: 'line-height', |
| from: '4', |
| to: 'normal', |
| }); |
| |
| test_no_interpolation({ |
| property: 'line-height', |
| from: 'normal', |
| to: '14px', |
| }); |
| |
| test_no_interpolation({ |
| property: 'line-height', |
| from: '14px', |
| to: '4', |
| }); |
| |
| test_no_interpolation({ |
| property: 'line-height', |
| from: '4', |
| to: '14q', |
| }); |
| |
| test_interpolation({ |
| property: 'line-height', |
| from: '4q', |
| to: '14q', |
| }, [ |
| {at: -1, expect: '0q'}, |
| {at: -0.3, expect: '1q'}, |
| {at: 0, expect: '4q'}, |
| {at: 0.3, expect: '7q'}, |
| {at: 0.6, expect: '10q'}, |
| {at: 1, expect: '14q'}, |
| {at: 1.5, expect: '19q'}, |
| ]); |
| |
| test_no_interpolation({ |
| property: 'line-height', |
| from: '14q', |
| to: 'normal', |
| }); |
| </script> |
