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| (Empty) | |
| 1 <!DOCTYPE html> |
| 2 <script src="../resources/testharness.js"></script> |
| 3 <script src="../resources/testharnessreport.js"></script> |
| 4 <style> |
| 5 @keyframes noSyntheticKeyframes { |
| 6 from { color: black; } |
| 7 to { color: green; } |
| 8 } |
| 9 @keyframes customPropertySyntheticKeyframes { |
| 10 to { --x: pants; } |
| 11 } |
| 12 @keyframes nonCompositedSyntheticKeyframes { |
| 13 to { color: green; } |
| 14 } |
| 15 @keyframes compositedSyntheticKeyframes { |
| 16 from { |
| 17 opacity: 0; |
| 18 } |
| 19 to { |
| 20 transform: rotate(45deg); |
| 21 opacity: 1; |
| 22 } |
| 23 } |
| 24 #target { |
| 25 animation-duration: 1s; |
| 26 } |
| 27 </style> |
| 28 <div id="target"></div> |
| 29 <script> |
| 30 // From UseCounter.h. |
| 31 var SyntheticKeyframesInCompositedCSSAnimation = 664; |
| 32 |
| 33 function forceStyleRecalc() { |
| 34 getComputedStyle(target).left; |
| 35 } |
| 36 |
| 37 test(() => { |
| 38 forceStyleRecalc(); |
| 39 assert_false(internals.isUseCounted(document, SyntheticKeyframesInCompositedCS
SAnimation), 'No animations started'); |
| 40 |
| 41 target.style.animationName = 'noSyntheticKeyframes'; |
| 42 forceStyleRecalc(); |
| 43 assert_false(internals.isUseCounted(document, SyntheticKeyframesInCompositedCS
SAnimation), 'noSyntheticKeyframes'); |
| 44 |
| 45 target.style.animationName = 'customPropertySyntheticKeyframes'; |
| 46 forceStyleRecalc(); |
| 47 assert_false(internals.isUseCounted(document, SyntheticKeyframesInCompositedCS
SAnimation), 'customPropertySyntheticKeyframes'); |
| 48 |
| 49 target.style.animationName = 'nonCompositedSyntheticKeyframes'; |
| 50 forceStyleRecalc(); |
| 51 assert_false(internals.isUseCounted(document, SyntheticKeyframesInCompositedCS
SAnimation), 'nonCompositedSyntheticKeyframes'); |
| 52 |
| 53 target.style.animationName = 'compositedSyntheticKeyframes'; |
| 54 forceStyleRecalc(); |
| 55 assert_true(internals.isUseCounted(document, SyntheticKeyframesInCompositedCSS
Animation), 'compositedSyntheticKeyframes'); |
| 56 }, 'The SyntheticKeyframesInCompositedCSSAnimation use counter should only be tr
iggered by animations with composited properties with neutral keyframes'); |
| 57 </script> |
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Chromium Code Reviews
Issue 2620303002:
Refactor how UseCounter::SyntheticKeyframesInCompositedCSSAnimation is counted (Closed)
