framer-motion
Version:
A simple and powerful JavaScript animation library
31 lines (28 loc) • 1.26 kB
JavaScript
import { analyseComplexValue } from '../../../value/types/complex/index.mjs';
import { getAnimatableNone } from '../../dom/value-types/animatable-none.mjs';
/**
* If we encounter keyframes like "none" or "0" and we also have keyframes like
* "#fff" or "200px 200px" we want to find a keyframe to serve as a template for
* the "none" keyframes. In this case "#fff" or "200px 200px" - then these get turned into
* zero equivalents, i.e. "#fff0" or "0px 0px".
*/
const invalidTemplates = new Set(["auto", "none", "0"]);
function makeNoneKeyframesAnimatable(unresolvedKeyframes, noneKeyframeIndexes, name) {
let i = 0;
let animatableTemplate = undefined;
while (i < unresolvedKeyframes.length && !animatableTemplate) {
const keyframe = unresolvedKeyframes[i];
if (typeof keyframe === "string" &&
!invalidTemplates.has(keyframe) &&
analyseComplexValue(keyframe).values.length) {
animatableTemplate = unresolvedKeyframes[i];
}
i++;
}
if (animatableTemplate && name) {
for (const noneIndex of noneKeyframeIndexes) {
unresolvedKeyframes[noneIndex] = getAnimatableNone(name, animatableTemplate);
}
}
}
export { makeNoneKeyframesAnimatable };