| <!doctype html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <title>Transform list interpolation</title> |
| <link rel="help" href="https://drafts.csswg.org/css-transforms-1/#interpolation-of-transforms"> |
| <meta name="assert" content="Interpolation of transform function lists is performed as follows"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/css/support/interpolation-testcommon.js"></script> |
| </head> |
| <body> |
| <script> |
| test_interpolation( |
| { |
| property: 'transform', |
| from: 'none', |
| to: 'none', |
| }, |
| [{ at: 0.25, expect: 'none' }], |
| 'none -> none' |
| ); |
| |
| test_interpolation( |
| { |
| property: 'transform', |
| from: 'none', |
| to: 'translate(200px) rotate(720deg)', |
| }, |
| [{ at: 0.25, expect: 'translate(50px) rotate(180deg)' }], |
| 'none -> something' |
| ); |
| |
| test_interpolation( |
| { |
| property: 'transform', |
| from: 'translate(200px) rotate(720deg)', |
| to: 'none', |
| }, |
| [{ at: 0.25, expect: 'translate(150px) rotate(540deg)' }], |
| 'something -> none' |
| ); |
| |
| test_interpolation( |
| { |
| property: 'transform', |
| from: 'translate(100px)', |
| to: 'translate(200px) rotate(720deg)', |
| }, |
| [{ at: 0.25, expect: 'translate(125px) rotate(180deg)' }], |
| 'Mismatched lengths (from is shorter), common part matches' |
| ); |
| |
| test_interpolation( |
| { |
| property: 'transform', |
| from: 'translate(100px) rotate(720deg)', |
| to: 'translate(200px)', |
| }, |
| [{ at: 0.25, expect: 'translate(125px) rotate(540deg)' }], |
| 'Mismatched lengths (to is shorter), common part matches' |
| ); |
| |
| test_interpolation( |
| { |
| property: 'transform', |
| from: 'scale(2) rotate(360deg) translate(100px) matrix(1, 0, 0, 1, 100, 0) skew(0deg)', |
| to: 'scale(3) rotate(1080deg) translate(200px) matrix(1, 0, 0, 1, 0, 200) skew(720deg)', |
| }, |
| [ |
| { |
| at: 0.25, |
| expect: 'scale(2.25) rotate(540deg) translate(125px) matrix(1, 0, 0, 1, 75, 50) skew(180deg)', |
| }, |
| ], |
| 'Perfect match' |
| ); |
| |
| test_interpolation( |
| { |
| property: 'transform', |
| from: 'translateX(100px) scaleX(3) translate(500px) scale(2)', |
| to: 'translateY(200px) scale(5) translateX(100px) scaleY(3)', |
| }, |
| [{ at: 0.25, expect: 'translate(75px, 50px) scale(3.5, 2) translate(400px, 0px) scale(1.75, 2.25)' }], |
| 'Matches on primitives' |
| ); |
| |
| test_interpolation( |
| { |
| property: 'transform', |
| from: 'rotateX(90deg) translateX(100px)', |
| to: 'rotate3d(50, 0, 0, 180deg) translateY(200px)', |
| }, |
| [{ at: 0.25, expect: 'rotateX(112.5deg) translate(75px, 50px)' }], |
| 'Match on rotation vector' |
| ); |
| |
| test_interpolation( |
| { |
| property: 'transform', |
| from: 'rotateX(90deg) translateX(100px)', |
| to: 'rotateY(0deg) translateY(200px)', |
| }, |
| [{ at: 0.25, expect: 'rotateX(67.5deg) translate(75px, 50px)' }], |
| 'Match on rotation due to 0deg angle' |
| ); |
| |
| test_interpolation( |
| { |
| property: 'transform', |
| from: 'rotate3d(1, 1, 1, -60deg) translateX(100px)', |
| to: 'rotate3d(2, 2, 2, 60deg) translateY(200px)', |
| }, [{ at: 0.25, expect: 'rotate3d(1, 1, 1, -30deg) translate(75px, 50px)' }], |
| 'Match on rotation using collinear rotation axes' |
| ); |
| |
| test_interpolation( |
| { |
| property: 'transform', |
| from: 'rotate3d(1, 0, 0, 360deg) translateX(100px)', |
| to: 'rotate3d(0, 1, 0, -720deg) translateY(200px)', |
| }, [{ at: 0.25, expect: 'rotate3d(0, 0, 1, 0deg) translate(75px, 50px)' }], |
| 'Match on rotation with spherical interpolation' |
| ); |
| |
| test_interpolation( |
| { |
| property: 'transform', |
| from: 'rotate(0deg) translate(100px)', |
| to: 'rotate(720deg) scale(2) translate(200px)', |
| }, |
| [{ at: 0.25, expect: 'rotate(180deg) matrix(1.25, 0, 0, 1.25, 175, 0)' }], |
| 'Common prefix' |
| ); |
| |
| test_interpolation( |
| { |
| property: 'transform', |
| from: 'scale(2) rotate(0deg) translate(100px)', |
| to: 'rotate(720deg) scale(2) translate(200px)', |
| }, |
| [{ at: 0.25, expect: 'matrix(2, 0, 0, 2, 250, 0)' }], |
| 'Complete mismatch (except length)' |
| ); |
| |
| test_interpolation( |
| { |
| property: 'transform', |
| from: 'scale(2) rotate(0deg)', |
| to: 'rotate(720deg) scale(2) translate(200px)', |
| }, |
| [{ at: 0.25, expect: 'matrix(2, 0, 0, 2, 100, 0)' }], |
| 'Complete mismatch including length' |
| ); |
| |
| test_interpolation( |
| { |
| property: 'transform', |
| from: 'rotate(0deg) scaleX(1)', |
| to: 'rotate(720deg) translateX(0px) scaleX(2)' |
| }, |
| [{at: 0.25, expect: 'rotate(180deg) matrix(1.25, 0, 0, 1, 0, 0)'}], |
| 'Mismatched lengths (from is shorter), partial match' |
| ); |
| |
| test_interpolation( |
| { |
| property: 'transform', |
| from: 'rotate(720deg) translateX(0px) scaleX(2)', |
| to: 'rotate(0deg) scaleX(1)' |
| }, |
| [{at: 0.25, expect: 'rotate(540deg) matrix(1.75, 0, 0, 1, 0, 0)'}], |
| 'Mismatched lengths (to is shorter), partial match' |
| ); |
| |
| test_interpolation( |
| { |
| property: 'transform', |
| from: 'scaleX(-3) scaleY(2)', |
| to: 'scaleY(-3) translateX(0px) scaleX(2)' |
| }, |
| [{at: 0.25, expect: 'scale(-2, 0) matrix(1.25, 0, 0, 1.75, 0, 0)'}], |
| 'Mismatched lengths (from is shorter), partial match on primitive' |
| ); |
| |
| test_interpolation( |
| { |
| property: 'transform', |
| from: 'scaleY(-3) translateX(0px) scaleX(2)', |
| to: 'scaleX(-3) scaleY(2)' |
| }, |
| [{at: 0.25, expect: 'scale(0, -2) matrix(1.75, 0, 0, 1.25, 0, 0)'}], |
| 'Mismatched lengths (to is shorter), partial match on primitive' |
| ); |
| |
| test_interpolation( |
| { |
| property: 'transform', |
| from: 'scaleY(-3) translateX(0px)', |
| to: 'scaleX(-3) scaleY(2)' |
| }, |
| [{at: 0.25, expect: 'scale(0, -2) matrix(1, 0, 0, 1.25, 0, 0)'}], |
| 'Common prefix on primitive' |
| ); |
| </script> |
| </body> |
| </html> |
