| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <title>offset-distance basic-shape interpolation</title> |
| <link rel="author" title="Daniil Sakhapov" href="mailto:sakhapov@chromium.org"> |
| <link rel="help" href="https://drafts.fxtf.org/motion/#valdef-offset-path-basic-shape"> |
| <meta name="assert" content="offset-path basic shape supports animation."> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/css/support/interpolation-testcommon.js"></script> |
| </head> |
| <style> |
| .parent { |
| offset-path: ellipse(10% 10% at 50% 50%); |
| } |
| .target { |
| offset-path: circle(10px); |
| } |
| </style> |
| <body> |
| <script> |
| 'use strict'; |
| |
| test_no_interpolation({ |
| property: 'offset-path', |
| from: "circle(10px)", |
| to: "inset(20px)", |
| }); |
| |
| test_no_interpolation({ |
| property: 'offset-path', |
| from: "ellipse(at center)", |
| to: "none", |
| }); |
| |
| // Neutral keyframes use the inline style. |
| test_interpolation({ |
| property: 'offset-path', |
| from: neutralKeyframe, |
| to: 'circle(20px)', |
| }, [ |
| {at: -0.3, expect: 'circle(7px)'}, |
| {at: 0, expect: 'circle(10px)'}, |
| {at: 0.3, expect: 'circle(13px)'}, |
| {at: 0.6, expect: 'circle(16px)'}, |
| {at: 1, expect: 'circle(20px)'}, |
| {at: 1.5, expect: 'circle(25px)'}, |
| ]); |
| |
| // No interpolation to an ellipse from the initial value 'none'. |
| test_no_interpolation({ |
| property: 'offset-path', |
| from: 'initial', |
| to: 'ellipse()', |
| }); |
| |
| // 'inherit' keyframes use the parent style. |
| test_interpolation({ |
| property: 'offset-path', |
| from: 'inherit', |
| to: 'ellipse(40% 50% at 25% 25%)', |
| }, [ |
| {at: -0.3, expect: 'ellipse(1% 0% at 57.5% 57.5%)'}, |
| {at: 0, expect: 'ellipse(10% 10% at 50% 50%)'}, |
| {at: 0.3, expect: 'ellipse(19% 22% at 42.5% 42.5%)'}, |
| {at: 0.6, expect: 'ellipse(28% 34% at 35% 35%)'}, |
| {at: 1, expect: 'ellipse(40% 50% at 25% 25%)'}, |
| {at: 1.5, expect: 'ellipse(55% 70% at 12.5% 12.5%)'}, |
| ]); |
| |
| // No interpolation to an inset from the initial value 'none'. |
| test_no_interpolation({ |
| property: 'offset-path', |
| from: 'unset', |
| to: 'inset(10%)', |
| }); |
| |
| // No interpolation to a rect from the initial value 'none'. |
| test_no_interpolation({ |
| property: 'offset-path', |
| from: 'none', |
| to: 'rect(10px 10px 10px 10px)', |
| }); |
| |
| // Interpolation between shapes. |
| test_interpolation({ |
| property: 'offset-path', |
| from: 'inset(10px)', |
| to: 'inset(20px round 50%)' |
| }, [ |
| {at: -1, expect: 'inset(0px round 0%)'}, |
| {at: 0, expect: 'inset(10px round 0%)'}, |
| {at: 0.125, expect: 'inset(11.25px round 6.25%)'}, |
| {at: 0.875, expect: 'inset(18.75px round 43.75%)'}, |
| {at: 1, expect: 'inset(20px round 50%)'}, |
| {at: 2, expect: 'inset(30px round 100%)'}, |
| ]); |
| |
| test_interpolation({ |
| property: 'offset-path', |
| from: 'xywh(5px 5px 150% 150%)', |
| to: 'xywh(10px 10px 100% 100%)' |
| }, [ |
| {at: -1, expect: 'xywh(0px 0px 200% 200%)'}, |
| {at: 0, expect: 'xywh(5px 5px 150% 150%)'}, |
| {at: 0.125, expect: 'xywh(5.63px 5.63px 143.75% 143.75% )'}, |
| {at: 0.875, expect: 'xywh(9.38px 9.38px 106.25% 106.25%)'}, |
| {at: 1, expect: 'xywh(10px 10px 100% 100%)'}, |
| {at: 2, expect: 'xywh(15px 15px 50% 50%)'}, |
| ]); |
| |
| // All <basic-shape-rect>s compute to the equivalent inset() function, so |
| // they are interpolatable. |
| // https://drafts.csswg.org/css-shapes-1/#basic-shape-computed-values |
| // https://github.com/w3c/csswg-drafts/issues/9053 |
| test_interpolation({ |
| property: 'offset-path', |
| // The equivalent function is |
| // "inset(5px calc(100% - 210px) calc(100% - 105px) 10px)". |
| from: 'xywh(10px 10px 200px 100px)', |
| to: 'inset(50px)' |
| }, [ |
| {at: -1, expect: 'inset(-30px calc(200% - 470px) calc(200% - 270px) -30px)'}, |
| {at: 0, expect: 'inset(10px calc(100% - 210px) calc(100% - 110px) 10px)'}, |
| {at: 0.125, expect: 'inset(15px calc(87.5% - 177.5px) calc(87.5% - 90px) 15px)'}, |
| {at: 0.875, expect: 'inset(45px calc(12.5% + 17.5px) calc(12.5% + 30px) 45px)'}, |
| {at: 1, expect: 'inset(50px calc(0% + 50px) calc(0% + 50px) 50px)'}, |
| {at: 2, expect: 'inset(90px calc(-100% + 310px) calc(-100% + 210px) 90px)'}, |
| ]); |
| |
| // No interpolation between different radius keywords. |
| test_no_interpolation({ |
| property: 'offset-path', |
| from: 'circle(farthest-side)', |
| to: 'circle(closest-side)' |
| }); |
| test_no_interpolation({ |
| property: 'offset-path', |
| from: 'ellipse(closest-side farthest-side)', |
| to: 'ellipse(closest-side closest-side)' |
| }); |
| </script> |
| </body> |
| </html> |
