| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <title>backdrop-filter interpolation</title> |
| <link rel="help" href="https://drafts.fxtf.org/filter-effects-2/#BackdropFilterProperty"> |
| <meta name="assert" content="Matching lists interpolate."> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/css/support/interpolation-testcommon.js"></script> |
| <style> |
| .parent { |
| backdrop-filter: hue-rotate(30deg); |
| } |
| .target { |
| display: inline-block; |
| width: 50px; |
| height: 50px; |
| background-color: green; |
| color: white; |
| margin-right: 2px; |
| backdrop-filter: hue-rotate(10deg); |
| } |
| .expected { |
| margin-right: 20px; |
| } |
| .test { |
| padding-bottom: 10px; |
| } |
| </style> |
| </head> |
| <body> |
| <script> |
| 'use strict'; |
| |
| test_interpolation({ |
| property: 'backdrop-filter', |
| from: 'hue-rotate(0deg) blur(6px)', |
| to: 'hue-rotate(180deg) blur(10px)' |
| }, [ |
| {at: -0.5, expect: 'hue-rotate(-90deg) blur(4px)'}, |
| {at: 0, expect: 'hue-rotate(0deg) blur(6px)'}, |
| {at: 0.25, expect: 'hue-rotate(45deg) blur(7px)'}, |
| {at: 0.5, expect: 'hue-rotate(90deg) blur(8px)'}, |
| {at: 1, expect: 'hue-rotate(180deg) blur(10px)'}, |
| {at: 1.5, expect: 'hue-rotate(270deg) blur(12px)'} |
| ]); |
| |
| // Matching lists with differing units: |
| test_interpolation({ |
| property: 'backdrop-filter', |
| from: 'hue-rotate(80deg) blur(6mm)', |
| to: 'hue-rotate(100grad) blur(1cm)' |
| }, [ |
| {at: -0.5, expect: 'hue-rotate(75deg) blur(4mm)'}, |
| {at: 0, expect: 'hue-rotate(80deg) blur(6mm)'}, |
| {at: 0.25, expect: 'hue-rotate(82.5deg) blur(7mm)'}, |
| {at: 0.5, expect: 'hue-rotate(85deg) blur(8mm)'}, |
| {at: 1, expect: 'hue-rotate(90deg) blur(10mm)'}, |
| {at: 1.5, expect: 'hue-rotate(95deg) blur(12mm)'} |
| ]); |
| |
| test_interpolation({ |
| property: 'backdrop-filter', |
| from: neutralKeyframe, |
| to: 'hue-rotate(20deg)', |
| }, [ |
| {at: -0.5, expect: 'hue-rotate(5deg)'}, |
| {at: 0, expect: 'hue-rotate(10deg)'}, |
| {at: 0.3, expect: 'hue-rotate(13deg)'}, |
| {at: 0.6, expect: 'hue-rotate(16deg)'}, |
| {at: 1, expect: 'hue-rotate(20deg)'}, |
| {at: 1.5, expect: 'hue-rotate(25deg)'}, |
| ]); |
| |
| test_interpolation({ |
| property: 'backdrop-filter', |
| from: 'initial', |
| to: 'hue-rotate(20deg)', |
| }, [ |
| {at: -0.5, expect: 'hue-rotate(-10deg)'}, |
| {at: 0, expect: 'hue-rotate(0deg)'}, |
| {at: 0.3, expect: 'hue-rotate(6deg)'}, |
| {at: 0.6, expect: 'hue-rotate(12deg)'}, |
| {at: 1, expect: 'hue-rotate(20deg)'}, |
| {at: 1.5, expect: 'hue-rotate(30deg)'}, |
| ]); |
| |
| test_interpolation({ |
| property: 'backdrop-filter', |
| from: 'inherit', |
| to: 'hue-rotate(20deg)', |
| }, [ |
| {at: -0.5, expect: 'hue-rotate(35deg)'}, |
| {at: 0, expect: 'hue-rotate(30deg)'}, |
| {at: 0.3, expect: 'hue-rotate(27deg)'}, |
| {at: 0.6, expect: 'hue-rotate(24deg)'}, |
| {at: 1, expect: 'hue-rotate(20deg)'}, |
| {at: 1.5, expect: 'hue-rotate(15deg)'}, |
| ]); |
| |
| test_interpolation({ |
| property: 'backdrop-filter', |
| from: 'unset', |
| to: 'hue-rotate(20deg)', |
| }, [ |
| {at: -0.5, expect: 'hue-rotate(-10deg)'}, |
| {at: 0, expect: 'hue-rotate(0deg)'}, |
| {at: 0.3, expect: 'hue-rotate(6deg)'}, |
| {at: 0.6, expect: 'hue-rotate(12deg)'}, |
| {at: 1, expect: 'hue-rotate(20deg)'}, |
| {at: 1.5, expect: 'hue-rotate(30deg)'}, |
| ]); |
| |
| test_interpolation({ |
| property: 'backdrop-filter', |
| from: 'none', |
| to: 'hue-rotate(180deg)' |
| }, [ |
| {at: -0.5, expect: 'hue-rotate(-90deg)'}, |
| {at: 0, expect: 'hue-rotate(0deg)'}, |
| {at: 0.25, expect: 'hue-rotate(45deg)'}, |
| {at: 0.5, expect: 'hue-rotate(90deg)'}, |
| {at: 1, expect: 'hue-rotate(180deg)'}, |
| {at: 1.5, expect: 'hue-rotate(270deg)'}, |
| ]); |
| |
| test_interpolation({ |
| property: 'backdrop-filter', |
| from: 'hue-rotate(180deg)', |
| to: 'none' |
| }, [ |
| {at: -0.5, expect: 'hue-rotate(270deg)'}, |
| {at: 0, expect: 'hue-rotate(180deg)'}, |
| {at: 0.25, expect: 'hue-rotate(135deg)'}, |
| {at: 0.5, expect: 'hue-rotate(90deg)'}, |
| {at: 1, expect: 'hue-rotate(0deg)'}, |
| {at: 1.5, expect: 'hue-rotate(-90deg)'}, |
| ]); |
| |
| test_interpolation({ |
| property: 'backdrop-filter', |
| from: 'drop-shadow(0px 0px 0px currentcolor)', |
| to: 'drop-shadow(20px 10px green)' |
| }, [ |
| {at: -1, expect: 'drop-shadow(-20px -10px white)'}, |
| {at: 0, expect: 'drop-shadow(0px 0px 0px currentcolor)'}, |
| {at: 0.5, expect: 'drop-shadow(10px 5px #80C080)'}, |
| {at: 1, expect: 'drop-shadow(20px 10px green)'}, |
| {at: 1.5, expect: 'drop-shadow(30px 15px #004100)'} |
| ]); |
| |
| test_no_interpolation({ |
| property: 'backdrop-filter', |
| from: 'url("#svgfilter")', |
| to: 'blur(5px)', |
| }); |
| |
| test_interpolation({ |
| property: 'backdrop-filter', |
| from: 'initial', // lacuna is 0 |
| to: 'sepia(1)' |
| }, [ |
| {at: -1, expect: 'sepia(0)'}, // Negative values are not allowed. |
| {at: 0, expect: 'sepia(0)'}, |
| {at: 0.5, expect: 'sepia(0.5)'}, |
| {at: 1, expect: 'sepia(1)'}, |
| {at: 1.5, expect: 'sepia(1)'} // Should clamp values to 1. |
| ]); |
| </script> |
| </body> |
| </html> |
