Cancel finished view transitions Animations manually in fire-and-forget too#32545
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sebmarkbage merged 2 commits intofacebook:mainfrom Mar 10, 2025
Merged
Cancel finished view transitions Animations manually in fire-and-forget too#32545sebmarkbage merged 2 commits intofacebook:mainfrom
sebmarkbage merged 2 commits intofacebook:mainfrom
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sebmarkbage
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Mar 7, 2025
| } | ||
| for (let i = 0; i < animations.length; i++) { | ||
| const anim = animations[i]; | ||
| if (anim.playState !== 'running') { |
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This alone doesn't really help anything because the "finished" animations seems to interfere regardless but we shouldn't really restart any animation here. We expect all of them to be running. So this is just defensive coding.
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Comparing: cc680065c33739cc4c8cd2e8a67312b0c16a6ccc...43421797456d8433b7c99cd86037e2b763a2dc87 Critical size changesIncludes critical production bundles, as well as any change greater than 2%:
Significant size changesIncludes any change greater than 0.2%: (No significant changes) |
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This is in preparation for nested View Transitions. In that case we shouldn't cancel other nested View Transitions than the one we started.
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jackpope
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Mar 10, 2025
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…et too (#32545) Otherwise these can survive into the next View Transition and cause havoc to that transition. This was appearing as a flash in Safari in the fixture when going from A->B. This triggers a View Transition and at the same time the scroll position updates in an effect. That fires a scroll event which starts a gesture. This shouldn't really happen and the SwipeRecognizer should ideally ignore those but it's good to surface edge cases. That gesture is blocked on the View Transition finishing and then immediately after it starts a gesture View Transition. That gesture then picked up the former Animation from the previous transition which caused issues. This PR fixes that flash. DiffTrain build for [a8c2bbd](a8c2bbd)
huozhi
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Mar 11, 2025
[diff facebook/react@029e8bd6...0ca3deeb](facebook/react@029e8bd...0ca3dee) <details> <summary>React upstream changes</summary> - facebook/react#32569 - facebook/react#32567 - facebook/react#32549 - facebook/react#32545 - facebook/react#32566 - facebook/react#32551 - facebook/react#32550 - facebook/react#32528 - facebook/react#32359 - facebook/react#32536 - facebook/react#32539 </details>
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Otherwise these can survive into the next View Transition and cause havoc to that transition.
This was appearing as a flash in Safari in the fixture when going from A->B. This triggers a View Transition and at the same time the scroll position updates in an effect. That fires a scroll event which starts a gesture. This shouldn't really happen and the SwipeRecognizer should ideally ignore those but it's good to surface edge cases. That gesture is blocked on the View Transition finishing and then immediately after it starts a gesture View Transition. That gesture then picked up the former Animation from the previous transition which caused issues. This PR fixes that flash.