981 lines
34 KiB
JavaScript
981 lines
34 KiB
JavaScript
'use strict';
|
|
|
|
Object.defineProperty(exports, '__esModule', { value: true });
|
|
|
|
var tslib = require('tslib');
|
|
var heyListen = require('hey-listen');
|
|
var styleValueTypes = require('style-value-types');
|
|
var sync = require('framesync');
|
|
|
|
function _interopDefaultLegacy (e) { return e && typeof e === 'object' && 'default' in e ? e : { 'default': e }; }
|
|
|
|
var sync__default = /*#__PURE__*/_interopDefaultLegacy(sync);
|
|
|
|
const clamp = (min, max, v) => Math.min(Math.max(v, min), max);
|
|
|
|
const safeMin = 0.001;
|
|
const minDuration = 0.01;
|
|
const maxDuration = 10.0;
|
|
const minDamping = 0.05;
|
|
const maxDamping = 1;
|
|
function findSpring({ duration = 800, bounce = 0.25, velocity = 0, mass = 1, }) {
|
|
let envelope;
|
|
let derivative;
|
|
heyListen.warning(duration <= maxDuration * 1000, "Spring duration must be 10 seconds or less");
|
|
let dampingRatio = 1 - bounce;
|
|
dampingRatio = clamp(minDamping, maxDamping, dampingRatio);
|
|
duration = clamp(minDuration, maxDuration, duration / 1000);
|
|
if (dampingRatio < 1) {
|
|
envelope = (undampedFreq) => {
|
|
const exponentialDecay = undampedFreq * dampingRatio;
|
|
const delta = exponentialDecay * duration;
|
|
const a = exponentialDecay - velocity;
|
|
const b = calcAngularFreq(undampedFreq, dampingRatio);
|
|
const c = Math.exp(-delta);
|
|
return safeMin - (a / b) * c;
|
|
};
|
|
derivative = (undampedFreq) => {
|
|
const exponentialDecay = undampedFreq * dampingRatio;
|
|
const delta = exponentialDecay * duration;
|
|
const d = delta * velocity + velocity;
|
|
const e = Math.pow(dampingRatio, 2) * Math.pow(undampedFreq, 2) * duration;
|
|
const f = Math.exp(-delta);
|
|
const g = calcAngularFreq(Math.pow(undampedFreq, 2), dampingRatio);
|
|
const factor = -envelope(undampedFreq) + safeMin > 0 ? -1 : 1;
|
|
return (factor * ((d - e) * f)) / g;
|
|
};
|
|
}
|
|
else {
|
|
envelope = (undampedFreq) => {
|
|
const a = Math.exp(-undampedFreq * duration);
|
|
const b = (undampedFreq - velocity) * duration + 1;
|
|
return -safeMin + a * b;
|
|
};
|
|
derivative = (undampedFreq) => {
|
|
const a = Math.exp(-undampedFreq * duration);
|
|
const b = (velocity - undampedFreq) * (duration * duration);
|
|
return a * b;
|
|
};
|
|
}
|
|
const initialGuess = 5 / duration;
|
|
const undampedFreq = approximateRoot(envelope, derivative, initialGuess);
|
|
duration = duration * 1000;
|
|
if (isNaN(undampedFreq)) {
|
|
return {
|
|
stiffness: 100,
|
|
damping: 10,
|
|
duration,
|
|
};
|
|
}
|
|
else {
|
|
const stiffness = Math.pow(undampedFreq, 2) * mass;
|
|
return {
|
|
stiffness,
|
|
damping: dampingRatio * 2 * Math.sqrt(mass * stiffness),
|
|
duration,
|
|
};
|
|
}
|
|
}
|
|
const rootIterations = 12;
|
|
function approximateRoot(envelope, derivative, initialGuess) {
|
|
let result = initialGuess;
|
|
for (let i = 1; i < rootIterations; i++) {
|
|
result = result - envelope(result) / derivative(result);
|
|
}
|
|
return result;
|
|
}
|
|
function calcAngularFreq(undampedFreq, dampingRatio) {
|
|
return undampedFreq * Math.sqrt(1 - dampingRatio * dampingRatio);
|
|
}
|
|
|
|
const durationKeys = ["duration", "bounce"];
|
|
const physicsKeys = ["stiffness", "damping", "mass"];
|
|
function isSpringType(options, keys) {
|
|
return keys.some((key) => options[key] !== undefined);
|
|
}
|
|
function getSpringOptions(options) {
|
|
let springOptions = Object.assign({ velocity: 0.0, stiffness: 100, damping: 10, mass: 1.0, isResolvedFromDuration: false }, options);
|
|
if (!isSpringType(options, physicsKeys) &&
|
|
isSpringType(options, durationKeys)) {
|
|
const derived = findSpring(options);
|
|
springOptions = Object.assign(Object.assign(Object.assign({}, springOptions), derived), { velocity: 0.0, mass: 1.0 });
|
|
springOptions.isResolvedFromDuration = true;
|
|
}
|
|
return springOptions;
|
|
}
|
|
function spring(_a) {
|
|
var { from = 0.0, to = 1.0, restSpeed = 2, restDelta } = _a, options = tslib.__rest(_a, ["from", "to", "restSpeed", "restDelta"]);
|
|
const state = { done: false, value: from };
|
|
let { stiffness, damping, mass, velocity, duration, isResolvedFromDuration, } = getSpringOptions(options);
|
|
let resolveSpring = zero;
|
|
let resolveVelocity = zero;
|
|
function createSpring() {
|
|
const initialVelocity = velocity ? -(velocity / 1000) : 0.0;
|
|
const initialDelta = to - from;
|
|
const dampingRatio = damping / (2 * Math.sqrt(stiffness * mass));
|
|
const undampedAngularFreq = Math.sqrt(stiffness / mass) / 1000;
|
|
if (restDelta === undefined) {
|
|
restDelta = Math.min(Math.abs(to - from) / 100, 0.4);
|
|
}
|
|
if (dampingRatio < 1) {
|
|
const angularFreq = calcAngularFreq(undampedAngularFreq, dampingRatio);
|
|
resolveSpring = (t) => {
|
|
const envelope = Math.exp(-dampingRatio * undampedAngularFreq * t);
|
|
return (to -
|
|
envelope *
|
|
(((initialVelocity +
|
|
dampingRatio * undampedAngularFreq * initialDelta) /
|
|
angularFreq) *
|
|
Math.sin(angularFreq * t) +
|
|
initialDelta * Math.cos(angularFreq * t)));
|
|
};
|
|
resolveVelocity = (t) => {
|
|
const envelope = Math.exp(-dampingRatio * undampedAngularFreq * t);
|
|
return (dampingRatio *
|
|
undampedAngularFreq *
|
|
envelope *
|
|
((Math.sin(angularFreq * t) *
|
|
(initialVelocity +
|
|
dampingRatio *
|
|
undampedAngularFreq *
|
|
initialDelta)) /
|
|
angularFreq +
|
|
initialDelta * Math.cos(angularFreq * t)) -
|
|
envelope *
|
|
(Math.cos(angularFreq * t) *
|
|
(initialVelocity +
|
|
dampingRatio *
|
|
undampedAngularFreq *
|
|
initialDelta) -
|
|
angularFreq *
|
|
initialDelta *
|
|
Math.sin(angularFreq * t)));
|
|
};
|
|
}
|
|
else if (dampingRatio === 1) {
|
|
resolveSpring = (t) => to -
|
|
Math.exp(-undampedAngularFreq * t) *
|
|
(initialDelta +
|
|
(initialVelocity + undampedAngularFreq * initialDelta) *
|
|
t);
|
|
}
|
|
else {
|
|
const dampedAngularFreq = undampedAngularFreq * Math.sqrt(dampingRatio * dampingRatio - 1);
|
|
resolveSpring = (t) => {
|
|
const envelope = Math.exp(-dampingRatio * undampedAngularFreq * t);
|
|
const freqForT = Math.min(dampedAngularFreq * t, 300);
|
|
return (to -
|
|
(envelope *
|
|
((initialVelocity +
|
|
dampingRatio * undampedAngularFreq * initialDelta) *
|
|
Math.sinh(freqForT) +
|
|
dampedAngularFreq *
|
|
initialDelta *
|
|
Math.cosh(freqForT))) /
|
|
dampedAngularFreq);
|
|
};
|
|
}
|
|
}
|
|
createSpring();
|
|
return {
|
|
next: (t) => {
|
|
const current = resolveSpring(t);
|
|
if (!isResolvedFromDuration) {
|
|
const currentVelocity = resolveVelocity(t) * 1000;
|
|
const isBelowVelocityThreshold = Math.abs(currentVelocity) <= restSpeed;
|
|
const isBelowDisplacementThreshold = Math.abs(to - current) <= restDelta;
|
|
state.done =
|
|
isBelowVelocityThreshold && isBelowDisplacementThreshold;
|
|
}
|
|
else {
|
|
state.done = t >= duration;
|
|
}
|
|
state.value = state.done ? to : current;
|
|
return state;
|
|
},
|
|
flipTarget: () => {
|
|
velocity = -velocity;
|
|
[from, to] = [to, from];
|
|
createSpring();
|
|
},
|
|
};
|
|
}
|
|
spring.needsInterpolation = (a, b) => typeof a === "string" || typeof b === "string";
|
|
const zero = (_t) => 0;
|
|
|
|
const progress = (from, to, value) => {
|
|
const toFromDifference = to - from;
|
|
return toFromDifference === 0 ? 1 : (value - from) / toFromDifference;
|
|
};
|
|
|
|
const mix = (from, to, progress) => -progress * from + progress * to + from;
|
|
|
|
function hueToRgb(p, q, t) {
|
|
if (t < 0)
|
|
t += 1;
|
|
if (t > 1)
|
|
t -= 1;
|
|
if (t < 1 / 6)
|
|
return p + (q - p) * 6 * t;
|
|
if (t < 1 / 2)
|
|
return q;
|
|
if (t < 2 / 3)
|
|
return p + (q - p) * (2 / 3 - t) * 6;
|
|
return p;
|
|
}
|
|
function hslaToRgba({ hue, saturation, lightness, alpha }) {
|
|
hue /= 360;
|
|
saturation /= 100;
|
|
lightness /= 100;
|
|
let red = 0;
|
|
let green = 0;
|
|
let blue = 0;
|
|
if (!saturation) {
|
|
red = green = blue = lightness;
|
|
}
|
|
else {
|
|
const q = lightness < 0.5
|
|
? lightness * (1 + saturation)
|
|
: lightness + saturation - lightness * saturation;
|
|
const p = 2 * lightness - q;
|
|
red = hueToRgb(p, q, hue + 1 / 3);
|
|
green = hueToRgb(p, q, hue);
|
|
blue = hueToRgb(p, q, hue - 1 / 3);
|
|
}
|
|
return {
|
|
red: Math.round(red * 255),
|
|
green: Math.round(green * 255),
|
|
blue: Math.round(blue * 255),
|
|
alpha,
|
|
};
|
|
}
|
|
|
|
const mixLinearColor = (from, to, v) => {
|
|
const fromExpo = from * from;
|
|
const toExpo = to * to;
|
|
return Math.sqrt(Math.max(0, v * (toExpo - fromExpo) + fromExpo));
|
|
};
|
|
const colorTypes = [styleValueTypes.hex, styleValueTypes.rgba, styleValueTypes.hsla];
|
|
const getColorType = (v) => colorTypes.find((type) => type.test(v));
|
|
const notAnimatable = (color) => `'${color}' is not an animatable color. Use the equivalent color code instead.`;
|
|
const mixColor = (from, to) => {
|
|
let fromColorType = getColorType(from);
|
|
let toColorType = getColorType(to);
|
|
heyListen.invariant(!!fromColorType, notAnimatable(from));
|
|
heyListen.invariant(!!toColorType, notAnimatable(to));
|
|
let fromColor = fromColorType.parse(from);
|
|
let toColor = toColorType.parse(to);
|
|
if (fromColorType === styleValueTypes.hsla) {
|
|
fromColor = hslaToRgba(fromColor);
|
|
fromColorType = styleValueTypes.rgba;
|
|
}
|
|
if (toColorType === styleValueTypes.hsla) {
|
|
toColor = hslaToRgba(toColor);
|
|
toColorType = styleValueTypes.rgba;
|
|
}
|
|
const blended = Object.assign({}, fromColor);
|
|
return (v) => {
|
|
for (const key in blended) {
|
|
if (key !== "alpha") {
|
|
blended[key] = mixLinearColor(fromColor[key], toColor[key], v);
|
|
}
|
|
}
|
|
blended.alpha = mix(fromColor.alpha, toColor.alpha, v);
|
|
return fromColorType.transform(blended);
|
|
};
|
|
};
|
|
|
|
const zeroPoint = {
|
|
x: 0,
|
|
y: 0,
|
|
z: 0
|
|
};
|
|
const isNum = (v) => typeof v === 'number';
|
|
|
|
const combineFunctions = (a, b) => (v) => b(a(v));
|
|
const pipe = (...transformers) => transformers.reduce(combineFunctions);
|
|
|
|
function getMixer(origin, target) {
|
|
if (isNum(origin)) {
|
|
return (v) => mix(origin, target, v);
|
|
}
|
|
else if (styleValueTypes.color.test(origin)) {
|
|
return mixColor(origin, target);
|
|
}
|
|
else {
|
|
return mixComplex(origin, target);
|
|
}
|
|
}
|
|
const mixArray = (from, to) => {
|
|
const output = [...from];
|
|
const numValues = output.length;
|
|
const blendValue = from.map((fromThis, i) => getMixer(fromThis, to[i]));
|
|
return (v) => {
|
|
for (let i = 0; i < numValues; i++) {
|
|
output[i] = blendValue[i](v);
|
|
}
|
|
return output;
|
|
};
|
|
};
|
|
const mixObject = (origin, target) => {
|
|
const output = Object.assign(Object.assign({}, origin), target);
|
|
const blendValue = {};
|
|
for (const key in output) {
|
|
if (origin[key] !== undefined && target[key] !== undefined) {
|
|
blendValue[key] = getMixer(origin[key], target[key]);
|
|
}
|
|
}
|
|
return (v) => {
|
|
for (const key in blendValue) {
|
|
output[key] = blendValue[key](v);
|
|
}
|
|
return output;
|
|
};
|
|
};
|
|
function analyse(value) {
|
|
const parsed = styleValueTypes.complex.parse(value);
|
|
const numValues = parsed.length;
|
|
let numNumbers = 0;
|
|
let numRGB = 0;
|
|
let numHSL = 0;
|
|
for (let i = 0; i < numValues; i++) {
|
|
if (numNumbers || typeof parsed[i] === "number") {
|
|
numNumbers++;
|
|
}
|
|
else {
|
|
if (parsed[i].hue !== undefined) {
|
|
numHSL++;
|
|
}
|
|
else {
|
|
numRGB++;
|
|
}
|
|
}
|
|
}
|
|
return { parsed, numNumbers, numRGB, numHSL };
|
|
}
|
|
const mixComplex = (origin, target) => {
|
|
const template = styleValueTypes.complex.createTransformer(target);
|
|
const originStats = analyse(origin);
|
|
const targetStats = analyse(target);
|
|
const canInterpolate = originStats.numHSL === targetStats.numHSL &&
|
|
originStats.numRGB === targetStats.numRGB &&
|
|
originStats.numNumbers >= targetStats.numNumbers;
|
|
if (canInterpolate) {
|
|
return pipe(mixArray(originStats.parsed, targetStats.parsed), template);
|
|
}
|
|
else {
|
|
heyListen.warning(true, `Complex values '${origin}' and '${target}' too different to mix. Ensure all colors are of the same type, and that each contains the same quantity of number and color values. Falling back to instant transition.`);
|
|
return (p) => `${p > 0 ? target : origin}`;
|
|
}
|
|
};
|
|
|
|
const mixNumber = (from, to) => (p) => mix(from, to, p);
|
|
function detectMixerFactory(v) {
|
|
if (typeof v === 'number') {
|
|
return mixNumber;
|
|
}
|
|
else if (typeof v === 'string') {
|
|
if (styleValueTypes.color.test(v)) {
|
|
return mixColor;
|
|
}
|
|
else {
|
|
return mixComplex;
|
|
}
|
|
}
|
|
else if (Array.isArray(v)) {
|
|
return mixArray;
|
|
}
|
|
else if (typeof v === 'object') {
|
|
return mixObject;
|
|
}
|
|
}
|
|
function createMixers(output, ease, customMixer) {
|
|
const mixers = [];
|
|
const mixerFactory = customMixer || detectMixerFactory(output[0]);
|
|
const numMixers = output.length - 1;
|
|
for (let i = 0; i < numMixers; i++) {
|
|
let mixer = mixerFactory(output[i], output[i + 1]);
|
|
if (ease) {
|
|
const easingFunction = Array.isArray(ease) ? ease[i] : ease;
|
|
mixer = pipe(easingFunction, mixer);
|
|
}
|
|
mixers.push(mixer);
|
|
}
|
|
return mixers;
|
|
}
|
|
function fastInterpolate([from, to], [mixer]) {
|
|
return (v) => mixer(progress(from, to, v));
|
|
}
|
|
function slowInterpolate(input, mixers) {
|
|
const inputLength = input.length;
|
|
const lastInputIndex = inputLength - 1;
|
|
return (v) => {
|
|
let mixerIndex = 0;
|
|
let foundMixerIndex = false;
|
|
if (v <= input[0]) {
|
|
foundMixerIndex = true;
|
|
}
|
|
else if (v >= input[lastInputIndex]) {
|
|
mixerIndex = lastInputIndex - 1;
|
|
foundMixerIndex = true;
|
|
}
|
|
if (!foundMixerIndex) {
|
|
let i = 1;
|
|
for (; i < inputLength; i++) {
|
|
if (input[i] > v || i === lastInputIndex) {
|
|
break;
|
|
}
|
|
}
|
|
mixerIndex = i - 1;
|
|
}
|
|
const progressInRange = progress(input[mixerIndex], input[mixerIndex + 1], v);
|
|
return mixers[mixerIndex](progressInRange);
|
|
};
|
|
}
|
|
function interpolate(input, output, { clamp: isClamp = true, ease, mixer } = {}) {
|
|
const inputLength = input.length;
|
|
heyListen.invariant(inputLength === output.length, 'Both input and output ranges must be the same length');
|
|
heyListen.invariant(!ease || !Array.isArray(ease) || ease.length === inputLength - 1, 'Array of easing functions must be of length `input.length - 1`, as it applies to the transitions **between** the defined values.');
|
|
if (input[0] > input[inputLength - 1]) {
|
|
input = [].concat(input);
|
|
output = [].concat(output);
|
|
input.reverse();
|
|
output.reverse();
|
|
}
|
|
const mixers = createMixers(output, ease, mixer);
|
|
const interpolator = inputLength === 2
|
|
? fastInterpolate(input, mixers)
|
|
: slowInterpolate(input, mixers);
|
|
return isClamp
|
|
? (v) => interpolator(clamp(input[0], input[inputLength - 1], v))
|
|
: interpolator;
|
|
}
|
|
|
|
const reverseEasing = easing => p => 1 - easing(1 - p);
|
|
const mirrorEasing = easing => p => p <= 0.5 ? easing(2 * p) / 2 : (2 - easing(2 * (1 - p))) / 2;
|
|
const createExpoIn = (power) => p => Math.pow(p, power);
|
|
const createBackIn = (power) => p => p * p * ((power + 1) * p - power);
|
|
const createAnticipate = (power) => {
|
|
const backEasing = createBackIn(power);
|
|
return p => (p *= 2) < 1
|
|
? 0.5 * backEasing(p)
|
|
: 0.5 * (2 - Math.pow(2, -10 * (p - 1)));
|
|
};
|
|
|
|
const DEFAULT_OVERSHOOT_STRENGTH = 1.525;
|
|
const BOUNCE_FIRST_THRESHOLD = 4.0 / 11.0;
|
|
const BOUNCE_SECOND_THRESHOLD = 8.0 / 11.0;
|
|
const BOUNCE_THIRD_THRESHOLD = 9.0 / 10.0;
|
|
const linear = p => p;
|
|
const easeIn = createExpoIn(2);
|
|
const easeOut = reverseEasing(easeIn);
|
|
const easeInOut = mirrorEasing(easeIn);
|
|
const circIn = p => 1 - Math.sin(Math.acos(p));
|
|
const circOut = reverseEasing(circIn);
|
|
const circInOut = mirrorEasing(circOut);
|
|
const backIn = createBackIn(DEFAULT_OVERSHOOT_STRENGTH);
|
|
const backOut = reverseEasing(backIn);
|
|
const backInOut = mirrorEasing(backIn);
|
|
const anticipate = createAnticipate(DEFAULT_OVERSHOOT_STRENGTH);
|
|
const ca = 4356.0 / 361.0;
|
|
const cb = 35442.0 / 1805.0;
|
|
const cc = 16061.0 / 1805.0;
|
|
const bounceOut = (p) => {
|
|
if (p === 1 || p === 0)
|
|
return p;
|
|
const p2 = p * p;
|
|
return p < BOUNCE_FIRST_THRESHOLD
|
|
? 7.5625 * p2
|
|
: p < BOUNCE_SECOND_THRESHOLD
|
|
? 9.075 * p2 - 9.9 * p + 3.4
|
|
: p < BOUNCE_THIRD_THRESHOLD
|
|
? ca * p2 - cb * p + cc
|
|
: 10.8 * p * p - 20.52 * p + 10.72;
|
|
};
|
|
const bounceIn = reverseEasing(bounceOut);
|
|
const bounceInOut = (p) => p < 0.5
|
|
? 0.5 * (1.0 - bounceOut(1.0 - p * 2.0))
|
|
: 0.5 * bounceOut(p * 2.0 - 1.0) + 0.5;
|
|
|
|
function defaultEasing(values, easing) {
|
|
return values.map(() => easing || easeInOut).splice(0, values.length - 1);
|
|
}
|
|
function defaultOffset(values) {
|
|
const numValues = values.length;
|
|
return values.map((_value, i) => i !== 0 ? i / (numValues - 1) : 0);
|
|
}
|
|
function convertOffsetToTimes(offset, duration) {
|
|
return offset.map((o) => o * duration);
|
|
}
|
|
function keyframes({ from = 0, to = 1, ease, offset, duration = 300, }) {
|
|
const state = { done: false, value: from };
|
|
const values = Array.isArray(to) ? to : [from, to];
|
|
const times = convertOffsetToTimes(offset && offset.length === values.length
|
|
? offset
|
|
: defaultOffset(values), duration);
|
|
function createInterpolator() {
|
|
return interpolate(times, values, {
|
|
ease: Array.isArray(ease) ? ease : defaultEasing(values, ease),
|
|
});
|
|
}
|
|
let interpolator = createInterpolator();
|
|
return {
|
|
next: (t) => {
|
|
state.value = interpolator(t);
|
|
state.done = t >= duration;
|
|
return state;
|
|
},
|
|
flipTarget: () => {
|
|
values.reverse();
|
|
interpolator = createInterpolator();
|
|
},
|
|
};
|
|
}
|
|
|
|
function decay({ velocity = 0, from = 0, power = 0.8, timeConstant = 350, restDelta = 0.5, modifyTarget, }) {
|
|
const state = { done: false, value: from };
|
|
let amplitude = power * velocity;
|
|
const ideal = from + amplitude;
|
|
const target = modifyTarget === undefined ? ideal : modifyTarget(ideal);
|
|
if (target !== ideal)
|
|
amplitude = target - from;
|
|
return {
|
|
next: (t) => {
|
|
const delta = -amplitude * Math.exp(-t / timeConstant);
|
|
state.done = !(delta > restDelta || delta < -restDelta);
|
|
state.value = state.done ? target : target + delta;
|
|
return state;
|
|
},
|
|
flipTarget: () => { },
|
|
};
|
|
}
|
|
|
|
const types = { keyframes, spring, decay };
|
|
function detectAnimationFromOptions(config) {
|
|
if (Array.isArray(config.to)) {
|
|
return keyframes;
|
|
}
|
|
else if (types[config.type]) {
|
|
return types[config.type];
|
|
}
|
|
const keys = new Set(Object.keys(config));
|
|
if (keys.has("ease") ||
|
|
(keys.has("duration") && !keys.has("dampingRatio"))) {
|
|
return keyframes;
|
|
}
|
|
else if (keys.has("dampingRatio") ||
|
|
keys.has("stiffness") ||
|
|
keys.has("mass") ||
|
|
keys.has("damping") ||
|
|
keys.has("restSpeed") ||
|
|
keys.has("restDelta")) {
|
|
return spring;
|
|
}
|
|
return keyframes;
|
|
}
|
|
|
|
function loopElapsed(elapsed, duration, delay = 0) {
|
|
return elapsed - duration - delay;
|
|
}
|
|
function reverseElapsed(elapsed, duration, delay = 0, isForwardPlayback = true) {
|
|
return isForwardPlayback
|
|
? loopElapsed(duration + -elapsed, duration, delay)
|
|
: duration - (elapsed - duration) + delay;
|
|
}
|
|
function hasRepeatDelayElapsed(elapsed, duration, delay, isForwardPlayback) {
|
|
return isForwardPlayback ? elapsed >= duration + delay : elapsed <= -delay;
|
|
}
|
|
|
|
const framesync = (update) => {
|
|
const passTimestamp = ({ delta }) => update(delta);
|
|
return {
|
|
start: () => sync__default['default'].update(passTimestamp, true),
|
|
stop: () => sync.cancelSync.update(passTimestamp),
|
|
};
|
|
};
|
|
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 = tslib.__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();
|
|
},
|
|
};
|
|
}
|
|
|
|
function velocityPerSecond(velocity, frameDuration) {
|
|
return frameDuration ? velocity * (1000 / frameDuration) : 0;
|
|
}
|
|
|
|
function inertia({ from = 0, velocity = 0, min, max, power = 0.8, timeConstant = 750, bounceStiffness = 500, bounceDamping = 10, restDelta = 1, modifyTarget, driver, onUpdate, onComplete, onStop, }) {
|
|
let currentAnimation;
|
|
function isOutOfBounds(v) {
|
|
return (min !== undefined && v < min) || (max !== undefined && v > max);
|
|
}
|
|
function boundaryNearest(v) {
|
|
if (min === undefined)
|
|
return max;
|
|
if (max === undefined)
|
|
return min;
|
|
return Math.abs(min - v) < Math.abs(max - v) ? min : max;
|
|
}
|
|
function startAnimation(options) {
|
|
currentAnimation === null || currentAnimation === void 0 ? void 0 : currentAnimation.stop();
|
|
currentAnimation = animate(Object.assign(Object.assign({}, options), { driver, onUpdate: (v) => {
|
|
var _a;
|
|
onUpdate === null || onUpdate === void 0 ? void 0 : onUpdate(v);
|
|
(_a = options.onUpdate) === null || _a === void 0 ? void 0 : _a.call(options, v);
|
|
}, onComplete,
|
|
onStop }));
|
|
}
|
|
function startSpring(options) {
|
|
startAnimation(Object.assign({ type: "spring", stiffness: bounceStiffness, damping: bounceDamping, restDelta }, options));
|
|
}
|
|
if (isOutOfBounds(from)) {
|
|
startSpring({ from, velocity, to: boundaryNearest(from) });
|
|
}
|
|
else {
|
|
let target = power * velocity + from;
|
|
if (typeof modifyTarget !== "undefined")
|
|
target = modifyTarget(target);
|
|
const boundary = boundaryNearest(target);
|
|
const heading = boundary === min ? -1 : 1;
|
|
let prev;
|
|
let current;
|
|
const checkBoundary = (v) => {
|
|
prev = current;
|
|
current = v;
|
|
velocity = velocityPerSecond(v - prev, sync.getFrameData().delta);
|
|
if ((heading === 1 && v > boundary) ||
|
|
(heading === -1 && v < boundary)) {
|
|
startSpring({ from: v, to: boundary, velocity });
|
|
}
|
|
};
|
|
startAnimation({
|
|
type: "decay",
|
|
from,
|
|
velocity,
|
|
timeConstant,
|
|
power,
|
|
restDelta,
|
|
modifyTarget,
|
|
onUpdate: isOutOfBounds(target) ? checkBoundary : undefined,
|
|
});
|
|
}
|
|
return {
|
|
stop: () => currentAnimation === null || currentAnimation === void 0 ? void 0 : currentAnimation.stop(),
|
|
};
|
|
}
|
|
|
|
const radiansToDegrees = (radians) => (radians * 180) / Math.PI;
|
|
|
|
const angle = (a, b = zeroPoint) => radiansToDegrees(Math.atan2(b.y - a.y, b.x - a.x));
|
|
|
|
const applyOffset = (from, to) => {
|
|
let hasReceivedFrom = true;
|
|
if (to === undefined) {
|
|
to = from;
|
|
hasReceivedFrom = false;
|
|
}
|
|
return (v) => {
|
|
if (hasReceivedFrom) {
|
|
return v - from + to;
|
|
}
|
|
else {
|
|
from = v;
|
|
hasReceivedFrom = true;
|
|
return to;
|
|
}
|
|
};
|
|
};
|
|
|
|
const identity = (v) => v;
|
|
const createAttractor = (alterDisplacement = identity) => (constant, origin, v) => {
|
|
const displacement = origin - v;
|
|
const springModifiedDisplacement = -(0 - constant + 1) * (0 - alterDisplacement(Math.abs(displacement)));
|
|
return displacement <= 0
|
|
? origin + springModifiedDisplacement
|
|
: origin - springModifiedDisplacement;
|
|
};
|
|
const attract = createAttractor();
|
|
const attractExpo = createAttractor(Math.sqrt);
|
|
|
|
const degreesToRadians = (degrees) => (degrees * Math.PI) / 180;
|
|
|
|
const isPoint = (point) => point.hasOwnProperty('x') && point.hasOwnProperty('y');
|
|
|
|
const isPoint3D = (point) => isPoint(point) && point.hasOwnProperty('z');
|
|
|
|
const distance1D = (a, b) => Math.abs(a - b);
|
|
function distance(a, b) {
|
|
if (isNum(a) && isNum(b)) {
|
|
return distance1D(a, b);
|
|
}
|
|
else if (isPoint(a) && isPoint(b)) {
|
|
const xDelta = distance1D(a.x, b.x);
|
|
const yDelta = distance1D(a.y, b.y);
|
|
const zDelta = isPoint3D(a) && isPoint3D(b) ? distance1D(a.z, b.z) : 0;
|
|
return Math.sqrt(Math.pow(xDelta, 2) + Math.pow(yDelta, 2) + Math.pow(zDelta, 2));
|
|
}
|
|
}
|
|
|
|
const pointFromVector = (origin, angle, distance) => {
|
|
angle = degreesToRadians(angle);
|
|
return {
|
|
x: distance * Math.cos(angle) + origin.x,
|
|
y: distance * Math.sin(angle) + origin.y
|
|
};
|
|
};
|
|
|
|
const toDecimal = (num, precision = 2) => {
|
|
precision = Math.pow(10, precision);
|
|
return Math.round(num * precision) / precision;
|
|
};
|
|
|
|
const smoothFrame = (prevValue, nextValue, duration, smoothing = 0) => toDecimal(prevValue +
|
|
(duration * (nextValue - prevValue)) / Math.max(smoothing, duration));
|
|
|
|
const smooth = (strength = 50) => {
|
|
let previousValue = 0;
|
|
let lastUpdated = 0;
|
|
return (v) => {
|
|
const currentFramestamp = sync.getFrameData().timestamp;
|
|
const timeDelta = currentFramestamp !== lastUpdated ? currentFramestamp - lastUpdated : 0;
|
|
const newValue = timeDelta
|
|
? smoothFrame(previousValue, v, timeDelta, strength)
|
|
: previousValue;
|
|
lastUpdated = currentFramestamp;
|
|
previousValue = newValue;
|
|
return newValue;
|
|
};
|
|
};
|
|
|
|
const snap = (points) => {
|
|
if (typeof points === 'number') {
|
|
return (v) => Math.round(v / points) * points;
|
|
}
|
|
else {
|
|
let i = 0;
|
|
const numPoints = points.length;
|
|
return (v) => {
|
|
let lastDistance = Math.abs(points[0] - v);
|
|
for (i = 1; i < numPoints; i++) {
|
|
const point = points[i];
|
|
const distance = Math.abs(point - v);
|
|
if (distance === 0)
|
|
return point;
|
|
if (distance > lastDistance)
|
|
return points[i - 1];
|
|
if (i === numPoints - 1)
|
|
return point;
|
|
lastDistance = distance;
|
|
}
|
|
};
|
|
}
|
|
};
|
|
|
|
function velocityPerFrame(xps, frameDuration) {
|
|
return xps / (1000 / frameDuration);
|
|
}
|
|
|
|
const wrap = (min, max, v) => {
|
|
const rangeSize = max - min;
|
|
return ((((v - min) % rangeSize) + rangeSize) % rangeSize) + min;
|
|
};
|
|
|
|
const a = (a1, a2) => 1.0 - 3.0 * a2 + 3.0 * a1;
|
|
const b = (a1, a2) => 3.0 * a2 - 6.0 * a1;
|
|
const c = (a1) => 3.0 * a1;
|
|
const calcBezier = (t, a1, a2) => ((a(a1, a2) * t + b(a1, a2)) * t + c(a1)) * t;
|
|
const getSlope = (t, a1, a2) => 3.0 * a(a1, a2) * t * t + 2.0 * b(a1, a2) * t + c(a1);
|
|
const subdivisionPrecision = 0.0000001;
|
|
const subdivisionMaxIterations = 10;
|
|
function binarySubdivide(aX, aA, aB, mX1, mX2) {
|
|
let currentX;
|
|
let currentT;
|
|
let i = 0;
|
|
do {
|
|
currentT = aA + (aB - aA) / 2.0;
|
|
currentX = calcBezier(currentT, mX1, mX2) - aX;
|
|
if (currentX > 0.0) {
|
|
aB = currentT;
|
|
}
|
|
else {
|
|
aA = currentT;
|
|
}
|
|
} while (Math.abs(currentX) > subdivisionPrecision &&
|
|
++i < subdivisionMaxIterations);
|
|
return currentT;
|
|
}
|
|
const newtonIterations = 8;
|
|
const newtonMinSlope = 0.001;
|
|
function newtonRaphsonIterate(aX, aGuessT, mX1, mX2) {
|
|
for (let i = 0; i < newtonIterations; ++i) {
|
|
const currentSlope = getSlope(aGuessT, mX1, mX2);
|
|
if (currentSlope === 0.0) {
|
|
return aGuessT;
|
|
}
|
|
const currentX = calcBezier(aGuessT, mX1, mX2) - aX;
|
|
aGuessT -= currentX / currentSlope;
|
|
}
|
|
return aGuessT;
|
|
}
|
|
const kSplineTableSize = 11;
|
|
const kSampleStepSize = 1.0 / (kSplineTableSize - 1.0);
|
|
function cubicBezier(mX1, mY1, mX2, mY2) {
|
|
if (mX1 === mY1 && mX2 === mY2)
|
|
return linear;
|
|
const sampleValues = new Float32Array(kSplineTableSize);
|
|
for (let i = 0; i < kSplineTableSize; ++i) {
|
|
sampleValues[i] = calcBezier(i * kSampleStepSize, mX1, mX2);
|
|
}
|
|
function getTForX(aX) {
|
|
let intervalStart = 0.0;
|
|
let currentSample = 1;
|
|
const lastSample = kSplineTableSize - 1;
|
|
for (; currentSample !== lastSample && sampleValues[currentSample] <= aX; ++currentSample) {
|
|
intervalStart += kSampleStepSize;
|
|
}
|
|
--currentSample;
|
|
const dist = (aX - sampleValues[currentSample]) /
|
|
(sampleValues[currentSample + 1] - sampleValues[currentSample]);
|
|
const guessForT = intervalStart + dist * kSampleStepSize;
|
|
const initialSlope = getSlope(guessForT, mX1, mX2);
|
|
if (initialSlope >= newtonMinSlope) {
|
|
return newtonRaphsonIterate(aX, guessForT, mX1, mX2);
|
|
}
|
|
else if (initialSlope === 0.0) {
|
|
return guessForT;
|
|
}
|
|
else {
|
|
return binarySubdivide(aX, intervalStart, intervalStart + kSampleStepSize, mX1, mX2);
|
|
}
|
|
}
|
|
return (t) => t === 0 || t === 1 ? t : calcBezier(getTForX(t), mY1, mY2);
|
|
}
|
|
|
|
const steps = (steps, direction = 'end') => (progress) => {
|
|
progress =
|
|
direction === 'end' ? Math.min(progress, 0.999) : Math.max(progress, 0.001);
|
|
const expanded = progress * steps;
|
|
const rounded = direction === 'end' ? Math.floor(expanded) : Math.ceil(expanded);
|
|
return clamp(0, 1, rounded / steps);
|
|
};
|
|
|
|
exports.angle = angle;
|
|
exports.animate = animate;
|
|
exports.anticipate = anticipate;
|
|
exports.applyOffset = applyOffset;
|
|
exports.attract = attract;
|
|
exports.attractExpo = attractExpo;
|
|
exports.backIn = backIn;
|
|
exports.backInOut = backInOut;
|
|
exports.backOut = backOut;
|
|
exports.bounceIn = bounceIn;
|
|
exports.bounceInOut = bounceInOut;
|
|
exports.bounceOut = bounceOut;
|
|
exports.circIn = circIn;
|
|
exports.circInOut = circInOut;
|
|
exports.circOut = circOut;
|
|
exports.clamp = clamp;
|
|
exports.createAnticipate = createAnticipate;
|
|
exports.createAttractor = createAttractor;
|
|
exports.createBackIn = createBackIn;
|
|
exports.createExpoIn = createExpoIn;
|
|
exports.cubicBezier = cubicBezier;
|
|
exports.decay = decay;
|
|
exports.degreesToRadians = degreesToRadians;
|
|
exports.distance = distance;
|
|
exports.easeIn = easeIn;
|
|
exports.easeInOut = easeInOut;
|
|
exports.easeOut = easeOut;
|
|
exports.inertia = inertia;
|
|
exports.interpolate = interpolate;
|
|
exports.isPoint = isPoint;
|
|
exports.isPoint3D = isPoint3D;
|
|
exports.keyframes = keyframes;
|
|
exports.linear = linear;
|
|
exports.mirrorEasing = mirrorEasing;
|
|
exports.mix = mix;
|
|
exports.mixColor = mixColor;
|
|
exports.mixComplex = mixComplex;
|
|
exports.pipe = pipe;
|
|
exports.pointFromVector = pointFromVector;
|
|
exports.progress = progress;
|
|
exports.radiansToDegrees = radiansToDegrees;
|
|
exports.reverseEasing = reverseEasing;
|
|
exports.smooth = smooth;
|
|
exports.smoothFrame = smoothFrame;
|
|
exports.snap = snap;
|
|
exports.spring = spring;
|
|
exports.steps = steps;
|
|
exports.toDecimal = toDecimal;
|
|
exports.velocityPerFrame = velocityPerFrame;
|
|
exports.velocityPerSecond = velocityPerSecond;
|
|
exports.wrap = wrap;
|