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 王天杨
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import { getValueTransition } from '../utils/get-value-transition.mjs';
import { resolveTransition } from '../utils/resolve-transition.mjs';
import { positionalKeys } from '../../render/utils/keys-position.mjs';
import { setTarget } from '../../render/utils/setters.mjs';
import { addValueToWillChange } from '../../value/will-change/add-will-change.mjs';
import { getOptimisedAppearId } from '../optimized-appear/get-appear-id.mjs';
import { animateMotionValue } from './motion-value.mjs';
import { frame } from '../../frameloop/frame.mjs';
/**
* Decide whether we should block this animation. Previously, we achieved this
* just by checking whether the key was listed in protectedKeys, but this
* posed problems if an animation was triggered by afterChildren and protectedKeys
* had been set to true in the meantime.
*/
function shouldBlockAnimation({ protectedKeys, needsAnimating }, key) {
const shouldBlock = protectedKeys.hasOwnProperty(key) && needsAnimating[key] !== true;
needsAnimating[key] = false;
return shouldBlock;
}
function animateTarget(visualElement, targetAndTransition, { delay = 0, transitionOverride, type } = {}) {
let { transition, transitionEnd, ...target } = targetAndTransition;
const defaultTransition = visualElement.getDefaultTransition();
transition = transition
? resolveTransition(transition, defaultTransition)
: defaultTransition;
const reduceMotion = transition?.reduceMotion;
if (transitionOverride)
transition = transitionOverride;
const animations = [];
const animationTypeState = type &&
visualElement.animationState &&
visualElement.animationState.getState()[type];
for (const key in target) {
const value = visualElement.getValue(key, visualElement.latestValues[key] ?? null);
const valueTarget = target[key];
if (valueTarget === undefined ||
(animationTypeState &&
shouldBlockAnimation(animationTypeState, key))) {
continue;
}
const valueTransition = {
delay,
...getValueTransition(transition || {}, key),
};
/**
* If the value is already at the defined target, skip the animation.
* We still re-assert the value via frame.update to take precedence
* over any stale transitionEnd callbacks from previous animations.
*/
const currentValue = value.get();
if (currentValue !== undefined &&
!value.isAnimating() &&
!Array.isArray(valueTarget) &&
valueTarget === currentValue &&
!valueTransition.velocity) {
frame.update(() => value.set(valueTarget));
continue;
}
/**
* If this is the first time a value is being animated, check
* to see if we're handling off from an existing animation.
*/
let isHandoff = false;
if (window.MotionHandoffAnimation) {
const appearId = getOptimisedAppearId(visualElement);
if (appearId) {
const startTime = window.MotionHandoffAnimation(appearId, key, frame);
if (startTime !== null) {
valueTransition.startTime = startTime;
isHandoff = true;
}
}
}
addValueToWillChange(visualElement, key);
const shouldReduceMotion = reduceMotion ?? visualElement.shouldReduceMotion;
value.start(animateMotionValue(key, value, valueTarget, shouldReduceMotion && positionalKeys.has(key)
? { type: false }
: valueTransition, visualElement, isHandoff));
const animation = value.animation;
if (animation) {
animations.push(animation);
}
}
if (transitionEnd) {
const applyTransitionEnd = () => frame.update(() => {
transitionEnd && setTarget(visualElement, transitionEnd);
});
if (animations.length) {
Promise.all(animations).then(applyTransitionEnd);
}
else {
applyTransitionEnd();
}
}
return animations;
}
export { animateTarget };
//# sourceMappingURL=visual-element-target.mjs.map
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