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Fix race condition when performing swap for fallback
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1 changed files with 8 additions and 3 deletions
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@ -168,13 +168,18 @@ const { fallback = 'animate' } = Astro.props as Props;
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// Trigger the animations
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// Trigger the animations
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document.documentElement.dataset.astroTransitionFallback = 'old';
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document.documentElement.dataset.astroTransitionFallback = 'old';
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doc.documentElement.dataset.astroTransitionFallback = 'new';
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const fallbackSwap = () => {
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removeEventListener('animationend', fallbackSwap);
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clearTimeout(timeout);
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swap();
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document.documentElement.dataset.astroTransitionFallback = 'new';
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};
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// If there are any animations, want for the animationend event.
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// If there are any animations, want for the animationend event.
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addEventListener('animationend', swap, { once: true });
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addEventListener('animationend', fallbackSwap, { once: true });
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// If there are no animations, go ahead and swap on next tick
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// If there are no animations, go ahead and swap on next tick
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// This is necessary because we do not know if there are animations.
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// This is necessary because we do not know if there are animations.
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// The setTimeout is a fallback in case there are none.
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// The setTimeout is a fallback in case there are none.
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setTimeout(() => !isAnimating && swap());
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var timeout = setTimeout(() => !isAnimating && fallbackSwap());
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} else {
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} else {
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swap();
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swap();
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}
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}
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