| <!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="Partially matching lists interpolate."> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/css/support/interpolation-testcommon.js"></script> |
| <style> |
| body { |
| color: blue; |
| } |
| </style> |
| </head> |
| <body> |
| <script> |
| 'use strict'; |
| |
| test_interpolation({ |
| property: 'backdrop-filter', |
| from: 'none', |
| to: 'opacity(0.5) hue-rotate(180deg)', |
| }, [ |
| {at: -0.5, expect: 'opacity(1) hue-rotate(-90deg)'}, |
| {at: 0.25, expect: 'opacity(0.875) hue-rotate(45deg)'}, |
| {at: 0.5, expect: 'opacity(0.75) hue-rotate(90deg)'}, |
| {at: 1, expect: 'opacity(0.5) hue-rotate(180deg)'}, |
| {at: 1.5, expect: 'opacity(0.25) hue-rotate(270deg)'}, |
| ]); |
| |
| test_interpolation({ |
| property: 'backdrop-filter', |
| from: 'blur(6px)', |
| to: 'blur(10px) hue-rotate(180deg)' |
| }, [ |
| {at: -0.5, expect: 'blur(4px) hue-rotate(-90deg)'}, |
| {at: 0.25, expect: 'blur(7px) hue-rotate(45deg)'}, |
| {at: 0.5, expect: 'blur(8px) hue-rotate(90deg)'}, |
| {at: 1, expect: 'blur(10px) hue-rotate(180deg)'}, |
| {at: 1.5, expect: 'blur(12px) hue-rotate(270deg)'}, |
| ]); |
| |
| // Mismatched lists: |
| test_no_interpolation({ |
| property: 'backdrop-filter', |
| from: 'grayscale(0) blur(0px)', |
| to: 'blur(10px)' |
| }); |
| </script> |
| </body> |
| </html> |
