2025-03-24 22:56:10 +01:00

87 lines
3.4 KiB
JavaScript

import { __rest } from "tslib";
import { detectAnimationFromOptions } from "./utils/detect-animation-from-options";
import sync, { cancelSync } from "framesync";
import { interpolate } from "../utils/interpolate";
import { loopElapsed, reverseElapsed, hasRepeatDelayElapsed, } from "./utils/elapsed";
const framesync = (update) => {
const passTimestamp = ({ delta }) => update(delta);
return {
start: () => sync.update(passTimestamp, true),
stop: () => cancelSync.update(passTimestamp),
};
};
export function animate(_a) {
var _b, _c;
var { from, autoplay = true, driver = framesync, elapsed = 0, repeat: repeatMax = 0, repeatType = "loop", repeatDelay = 0, onPlay, onStop, onComplete, onRepeat, onUpdate } = _a, options = __rest(_a, ["from", "autoplay", "driver", "elapsed", "repeat", "repeatType", "repeatDelay", "onPlay", "onStop", "onComplete", "onRepeat", "onUpdate"]);
let { to } = options;
let driverControls;
let repeatCount = 0;
let computedDuration = options.duration;
let latest;
let isComplete = false;
let isForwardPlayback = true;
let interpolateFromNumber;
const animator = detectAnimationFromOptions(options);
if ((_c = (_b = animator).needsInterpolation) === null || _c === void 0 ? void 0 : _c.call(_b, from, to)) {
interpolateFromNumber = interpolate([0, 100], [from, to], {
clamp: false,
});
from = 0;
to = 100;
}
const animation = animator(Object.assign(Object.assign({}, options), { from, to }));
function repeat() {
repeatCount++;
if (repeatType === "reverse") {
isForwardPlayback = repeatCount % 2 === 0;
elapsed = reverseElapsed(elapsed, computedDuration, repeatDelay, isForwardPlayback);
}
else {
elapsed = loopElapsed(elapsed, computedDuration, repeatDelay);
if (repeatType === "mirror")
animation.flipTarget();
}
isComplete = false;
onRepeat && onRepeat();
}
function complete() {
driverControls.stop();
onComplete && onComplete();
}
function update(delta) {
if (!isForwardPlayback)
delta = -delta;
elapsed += delta;
if (!isComplete) {
const state = animation.next(Math.max(0, elapsed));
latest = state.value;
if (interpolateFromNumber)
latest = interpolateFromNumber(latest);
isComplete = isForwardPlayback ? state.done : elapsed <= 0;
}
onUpdate === null || onUpdate === void 0 ? void 0 : onUpdate(latest);
if (isComplete) {
if (repeatCount === 0)
computedDuration !== null && computedDuration !== void 0 ? computedDuration : (computedDuration = elapsed);
if (repeatCount < repeatMax) {
hasRepeatDelayElapsed(elapsed, computedDuration, repeatDelay, isForwardPlayback) && repeat();
}
else {
complete();
}
}
}
function play() {
onPlay === null || onPlay === void 0 ? void 0 : onPlay();
driverControls = driver(update);
driverControls.start();
}
autoplay && play();
return {
stop: () => {
onStop === null || onStop === void 0 ? void 0 : onStop();
driverControls.stop();
},
};
}
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