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/**
* http://animejs.com
* JavaScript animation engine
* @version v2.2.0
* @author Julian Garnier
* @copyright ©2017 Julian Garnier
* Released under the MIT license
**/
(function(root, factory) {
if (typeof define === 'function' && define.amd) {
// AMD. Register as an anonymous module.
define([], factory);
} else if (typeof module === 'object' && module.exports) {
// Node. Does not work with strict CommonJS, but
// only CommonJS-like environments that support module.exports,
// like Node.
module.exports = factory();
} else {
// Browser globals (root is window)
root.anime = factory();
}
}(this, () => {
// Defaults
const defaultInstanceSettings = {
update: undefined,
begin: undefined,
run: undefined,
complete: undefined,
loop: 1,
direction: 'normal',
autoplay: true,
offset: 0
}
const defaultTweenSettings = {
duration: 1000,
delay: 0,
easing: 'easeOutElastic',
elasticity: 500,
round: 0
}
const validTransforms = ['translateX', 'translateY', 'translateZ', 'rotate', 'rotateX', 'rotateY', 'rotateZ', 'scale', 'scaleX', 'scaleY', 'scaleZ', 'skewX', 'skewY', 'perspective'];
let transformString;
// Utils
function stringContains(str, text) {
return str.indexOf(text) > -1;
}
const is = {
arr: a => Array.isArray(a),
obj: a => stringContains(Object.prototype.toString.call(a), 'Object'),
pth: a => is.obj(a) && a.hasOwnProperty('totalLength'),
svg: a => a instanceof SVGElement,
dom: a => a.nodeType || is.svg(a),
str: a => typeof a === 'string',
fnc: a => typeof a === 'function',
und: a => typeof a === 'undefined',
hex: a => /(^#[0-9A-F]{6}$)|(^#[0-9A-F]{3}$)/i.test(a),
rgb: a => /^rgb/.test(a),
hsl: a => /^hsl/.test(a),
col: a => (is.hex(a) || is.rgb(a) || is.hsl(a))
}
// BezierEasing https://github.com/gre/bezier-easing
const bezier = (() => {
const kSplineTableSize = 11;
const kSampleStepSize = 1.0 / (kSplineTableSize - 1.0);
function A (aA1, aA2) { return 1.0 - 3.0 * aA2 + 3.0 * aA1 };
function B (aA1, aA2) { return 3.0 * aA2 - 6.0 * aA1 };
function C (aA1) { return 3.0 * aA1 };
function calcBezier (aT, aA1, aA2) { return ((A(aA1, aA2) * aT + B(aA1, aA2)) * aT + C(aA1)) * aT };
function getSlope (aT, aA1, aA2) { return 3.0 * A(aA1, aA2) * aT * aT + 2.0 * B(aA1, aA2) * aT + C(aA1) };
function binarySubdivide (aX, aA, aB, mX1, mX2) {
let currentX, currentT, 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) > 0.0000001 && ++i < 10);
return currentT;
}
function newtonRaphsonIterate (aX, aGuessT, mX1, mX2) {
for (let i = 0; i < 4; ++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;
}
function bezier(mX1, mY1, mX2, mY2) {
if (!(0 <= mX1 && mX1 <= 1 && 0 <= mX2 && mX2 <= 1)) return;
let sampleValues = new Float32Array(kSplineTableSize);
if (mX1 !== mY1 || mX2 !== mY2) {
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 >= 0.001) {
return newtonRaphsonIterate(aX, guessForT, mX1, mX2);
} else if (initialSlope === 0.0) {
return guessForT;
} else {
return binarySubdivide(aX, intervalStart, intervalStart + kSampleStepSize, mX1, mX2);
}
}
return x => {
if (mX1 === mY1 && mX2 === mY2) return x;
if (x === 0) return 0;
if (x === 1) return 1;
return calcBezier(getTForX(x), mY1, mY2);
}
}
return bezier;
})();
const easings = (() => {
const names = ['Quad', 'Cubic', 'Quart', 'Quint', 'Sine', 'Expo', 'Circ', 'Back', 'Elastic'];
// Elastic easing adapted from jQueryUI http://api.jqueryui.com/easings/
function elastic(t, p) {
return t === 0 || t === 1 ? t :
-Math.pow(2, 10 * (t - 1)) * Math.sin((((t - 1) - (p / (Math.PI * 2.0) * Math.asin(1))) * (Math.PI * 2)) / p );
}
// Approximated Penner equations http://matthewlein.com/ceaser/
const equations = {
In: [
[0.550, 0.085, 0.680, 0.530], /* InQuad */
[0.550, 0.055, 0.675, 0.190], /* InCubic */
[0.895, 0.030, 0.685, 0.220], /* InQuart */
[0.755, 0.050, 0.855, 0.060], /* InQuint */
[0.470, 0.000, 0.745, 0.715], /* InSine */
[0.950, 0.050, 0.795, 0.035], /* InExpo */
[0.600, 0.040, 0.980, 0.335], /* InCirc */
[0.600, -0.280, 0.735, 0.045], /* InBack */
elastic /* InElastic */
], Out: [
[0.250, 0.460, 0.450, 0.940], /* OutQuad */
[0.215, 0.610, 0.355, 1.000], /* OutCubic */
[0.165, 0.840, 0.440, 1.000], /* OutQuart */
[0.230, 1.000, 0.320, 1.000], /* OutQuint */
[0.390, 0.575, 0.565, 1.000], /* OutSine */
[0.190, 1.000, 0.220, 1.000], /* OutExpo */
[0.075, 0.820, 0.165, 1.000], /* OutCirc */
[0.175, 0.885, 0.320, 1.275], /* OutBack */
(t, f) => 1 - elastic(1 - t, f) /* OutElastic */
], InOut: [
[0.455, 0.030, 0.515, 0.955], /* InOutQuad */
[0.645, 0.045, 0.355, 1.000], /* InOutCubic */
[0.770, 0.000, 0.175, 1.000], /* InOutQuart */
[0.860, 0.000, 0.070, 1.000], /* InOutQuint */
[0.445, 0.050, 0.550, 0.950], /* InOutSine */
[1.000, 0.000, 0.000, 1.000], /* InOutExpo */
[0.785, 0.135, 0.150, 0.860], /* InOutCirc */
[0.680, -0.550, 0.265, 1.550], /* InOutBack */
(t, f) => t < .5 ? elastic(t * 2, f) / 2 : 1 - elastic(t * -2 + 2, f) / 2 /* InOutElastic */
]
}
let functions = {
linear: bezier(0.250, 0.250, 0.750, 0.750)
}
for (let type in equations) {
equations[type].forEach((f, i) => {
functions['ease'+type+names[i]] = is.fnc(f) ? f : bezier.apply(this, f);
});
}
return functions;
})();
// Strings
function stringToHyphens(str) {
return str.replace(/([a-z])([A-Z])/g, '$1-$2').toLowerCase();
}
function selectString(str) {
if (is.col(str)) return;
try {
let nodes = document.querySelectorAll(str);
return nodes;
} catch(e) {
return;
}
}
// Arrays
function filterArray(arr, callback) {
const len = arr.length;
const thisArg = arguments.length >= 2 ? arguments[1] : void 0;
let result = [];
for (let i = 0; i < len; i++) {
if (i in arr) {
const val = arr[i];
if (callback.call(thisArg, val, i, arr)) {
result.push(val);
}
}
}
return result;
}
function flattenArray(arr) {
return arr.reduce((a, b) => a.concat(is.arr(b) ? flattenArray(b) : b), []);
}
function toArray(o) {
if (is.arr(o)) return o;
if (is.str(o)) o = selectString(o) || o;
if (o instanceof NodeList || o instanceof HTMLCollection) return [].slice.call(o);
return [o];
}
function arrayContains(arr, val) {
return arr.some(a => a === val);
}
// Objects
function cloneObject(o) {
let clone = {};
for (let p in o) clone[p] = o[p];
return clone;
}
function replaceObjectProps(o1, o2) {
let o = cloneObject(o1);
for (let p in o1) o[p] = o2.hasOwnProperty(p) ? o2[p] : o1[p];
return o;
}
function mergeObjects(o1, o2) {
let o = cloneObject(o1);
for (let p in o2) o[p] = is.und(o1[p]) ? o2[p] : o1[p];
return o;
}
// Colors
function rgbToRgba(rgbValue) {
const rgb = /rgb\((\d+,\s*[\d]+,\s*[\d]+)\)/g.exec(rgbValue);
return rgb ? `rgba(${rgb[1]},1)` : rgbValue;
}
function hexToRgba(hexValue) {
const rgx = /^#?([a-f\d])([a-f\d])([a-f\d])$/i;
const hex = hexValue.replace(rgx, (m, r, g, b) => r + r + g + g + b + b );
const rgb = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex);
const r = parseInt(rgb[1], 16);
const g = parseInt(rgb[2], 16);
const b = parseInt(rgb[3], 16);
return `rgba(${r},${g},${b},1)`;
}
function hslToRgba(hslValue) {
const hsl = /hsl\((\d+),\s*([\d.]+)%,\s*([\d.]+)%\)/g.exec(hslValue) || /hsla\((\d+),\s*([\d.]+)%,\s*([\d.]+)%,\s*([\d.]+)\)/g.exec(hslValue);
const h = parseInt(hsl[1]) / 360;
const s = parseInt(hsl[2]) / 100;
const l = parseInt(hsl[3]) / 100;
const a = hsl[4] || 1;
function hue2rgb(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;
}
let r, g, b;
if (s == 0) {
r = g = b = l;
} else {
const q = l < 0.5 ? l * (1 + s) : l + s - l * s;
const p = 2 * l - q;
r = hue2rgb(p, q, h + 1/3);
g = hue2rgb(p, q, h);
b = hue2rgb(p, q, h - 1/3);
}
return `rgba(${r * 255},${g * 255},${b * 255},${a})`;
}
function colorToRgb(val) {
if (is.rgb(val)) return rgbToRgba(val);
if (is.hex(val)) return hexToRgba(val);
if (is.hsl(val)) return hslToRgba(val);
}
// Units
function getUnit(val) {
const split = /([\+\-]?[0-9#\.]+)(%|px|pt|em|rem|in|cm|mm|ex|ch|pc|vw|vh|vmin|vmax|deg|rad|turn)?$/.exec(val);
if (split) return split[2];
}
function getTransformUnit(propName) {
if (stringContains(propName, 'translate') || propName === 'perspective') return 'px';
if (stringContains(propName, 'rotate') || stringContains(propName, 'skew')) return 'deg';
}
// Values
function minMaxValue(val, min, max) {
return Math.min(Math.max(val, min), max);
}
function getFunctionValue(val, animatable) {
if (!is.fnc(val)) return val;
return val(animatable.target, animatable.id, animatable.total);
}
function getCSSValue(el, prop) {
if (prop in el.style) {
return getComputedStyle(el).getPropertyValue(stringToHyphens(prop)) || '0';
}
}
function getAnimationType(el, prop) {
if (is.dom(el) && arrayContains(validTransforms, prop)) return 'transform';
if (is.dom(el) && (el.getAttribute(prop) || (is.svg(el) && el[prop]))) return 'attribute';
if (is.dom(el) && (prop !== 'transform' && getCSSValue(el, prop))) return 'css';
if (el[prop] != null) return 'object';
}
function getTransformValue(el, propName) {
const defaultUnit = getTransformUnit(propName);
const defaultVal = stringContains(propName, 'scale') ? 1 : 0 + defaultUnit;
const str = el.style.transform;
if (!str) return defaultVal;
let match = [];
let props = [];
let values = [];
const rgx = /(\w+)\((.+?)\)/g;
while (match = rgx.exec(str)) {
props.push(match[1]);
values.push(match[2]);
}
const value = filterArray(values, (val, i) => props[i] === propName);
return value.length ? value[0] : defaultVal;
}
function getOriginalTargetValue(target, propName) {
switch (getAnimationType(target, propName)) {
case 'transform': return getTransformValue(target, propName);
case 'css': return getCSSValue(target, propName);
case 'attribute': return target.getAttribute(propName);
}
return target[propName] || 0;
}
function getRelativeValue(to, from) {
const operator = /^(\*=|\+=|-=)/.exec(to);
if (!operator) return to;
const u = getUnit(to) || 0;
const x = parseFloat(from);
const y = parseFloat(to.replace(operator[0], ''));
switch (operator[0][0]) {
case '+': return x + y + u;
case '-': return x - y + u;
case '*': return x * y + u;
}
}
function validateValue(val, unit) {
if (is.col(val)) return colorToRgb(val);
const originalUnit = getUnit(val);
const unitLess = originalUnit ? val.substr(0, val.length - originalUnit.length) : val;
return unit && !/\s/g.test(val) ? unitLess + unit : unitLess;
}
// getTotalLength() equivalent for circle, rect, polyline, polygon and line shapes.
// adapted from https://gist.github.com/SebLambla/3e0550c496c236709744
function getDistance(p1, p2) {
return Math.sqrt(Math.pow(p2.x - p1.x, 2) + Math.pow(p2.y - p1.y, 2));
}
function getCircleLength(el) {
return 2 * Math.PI * el.getAttribute('r');
}
function getRectLength(el) {
return (el.getAttribute('width') * 2) + (el.getAttribute('height') * 2);
}
function getLineLength(el) {
return getDistance(
{x: el.getAttribute('x1'), y: el.getAttribute('y1')},
{x: el.getAttribute('x2'), y: el.getAttribute('y2')}
);
}
function getPolylineLength(el) {
const points = el.points;
let totalLength = 0;
let previousPos;
for (let i = 0 ; i < points.numberOfItems; i++) {
const currentPos = points.getItem(i);
if (i > 0) totalLength += getDistance(previousPos, currentPos);
previousPos = currentPos;
}
return totalLength;
}
function getPolygonLength(el) {
const points = el.points;
return getPolylineLength(el) + getDistance(points.getItem(points.numberOfItems - 1), points.getItem(0));
}
// Path animation
function getTotalLength(el) {
if (el.getTotalLength) return el.getTotalLength();
switch(el.tagName.toLowerCase()) {
case 'circle': return getCircleLength(el);
case 'rect': return getRectLength(el);
case 'line': return getLineLength(el);
case 'polyline': return getPolylineLength(el);
case 'polygon': return getPolygonLength(el);
}
}
function setDashoffset(el) {
const pathLength = getTotalLength(el);
el.setAttribute('stroke-dasharray', pathLength);
return pathLength;
}
// Motion path
function getPath(path, percent) {
const el = is.str(path) ? selectString(path)[0] : path;
const p = percent || 100;
return function(prop) {
return {
el: el,
property: prop,
totalLength: getTotalLength(el) * (p / 100)
}
}
}
function getPathProgress(path, progress) {
function point(offset = 0) {
const l = progress + offset >= 1 ? progress + offset : 0;
return path.el.getPointAtLength(l);
}
const p = point();
const p0 = point(-1);
const p1 = point(+1);
switch (path.property) {
case 'x': return p.x;
case 'y': return p.y;
case 'angle': return Math.atan2(p1.y - p0.y, p1.x - p0.x) * 180 / Math.PI;
}
}
// Decompose value
function decomposeValue(val, unit) {
const rgx = /-?\d*\.?\d+/g;
const value = validateValue((is.pth(val) ? val.totalLength : val), unit) + '';
return {
original: value,
numbers: value.match(rgx) ? value.match(rgx).map(Number) : [0],
strings: (is.str(val) || unit) ? value.split(rgx) : []
}
}
// Animatables
function parseTargets(targets) {
const targetsArray = targets ? (flattenArray(is.arr(targets) ? targets.map(toArray) : toArray(targets))) : [];
return filterArray(targetsArray, (item, pos, self) => self.indexOf(item) === pos);
}
function getAnimatables(targets) {
const parsed = parseTargets(targets);
return parsed.map((t, i) => {
return {target: t, id: i, total: parsed.length};
});
}
// Properties
function normalizePropertyTweens(prop, tweenSettings) {
let settings = cloneObject(tweenSettings);
if (is.arr(prop)) {
const l = prop.length;
const isFromTo = (l === 2 && !is.obj(prop[0]));
if (!isFromTo) {
// Duration divided by the number of tweens
if (!is.fnc(tweenSettings.duration)) settings.duration = tweenSettings.duration / l;
} else {
// Transform [from, to] values shorthand to a valid tween value
prop = {value: prop};
}
}
return toArray(prop).map((v, i) => {
// Default delay value should be applied only on the first tween
const delay = !i ? tweenSettings.delay : 0;
// Use path object as a tween value
let obj = is.obj(v) && !is.pth(v) ? v : {value: v};
// Set default delay value
if (is.und(obj.delay)) obj.delay = delay;
return obj;
}).map(k => mergeObjects(k, settings));
}
function getProperties(instanceSettings, tweenSettings, params) {
let properties = [];
const settings = mergeObjects(instanceSettings, tweenSettings);
for (let p in params) {
if (!settings.hasOwnProperty(p) && p !== 'targets') {
properties.push({
name: p,
offset: settings['offset'],
tweens: normalizePropertyTweens(params[p], tweenSettings)
});
}
}
return properties;
}
// Tweens
function normalizeTweenValues(tween, animatable) {
let t = {};
for (let p in tween) {
let value = getFunctionValue(tween[p], animatable);
if (is.arr(value)) {
value = value.map(v => getFunctionValue(v, animatable));
if (value.length === 1) value = value[0];
}
t[p] = value;
}
t.duration = parseFloat(t.duration);
t.delay = parseFloat(t.delay);
return t;
}
function normalizeEasing(val) {
return is.arr(val) ? bezier.apply(this, val) : easings[val];
}
function normalizeTweens(prop, animatable) {
let previousTween;
return prop.tweens.map(t => {
let tween = normalizeTweenValues(t, animatable);
const tweenValue = tween.value;
const originalValue = getOriginalTargetValue(animatable.target, prop.name);
const previousValue = previousTween ? previousTween.to.original : originalValue;
const from = is.arr(tweenValue) ? tweenValue[0] : previousValue;
const to = getRelativeValue(is.arr(tweenValue) ? tweenValue[1] : tweenValue, from);
const unit = getUnit(to) || getUnit(from) || getUnit(originalValue);
tween.from = decomposeValue(from, unit);
tween.to = decomposeValue(to, unit);
tween.start = previousTween ? previousTween.end : prop.offset;
tween.end = tween.start + tween.delay + tween.duration;
tween.easing = normalizeEasing(tween.easing);
tween.elasticity = (1000 - minMaxValue(tween.elasticity, 1, 999)) / 1000;
tween.isPath = is.pth(tweenValue);
tween.isColor = is.col(tween.from.original);
if (tween.isColor) tween.round = 1;
previousTween = tween;
return tween;
});
}
// Tween progress
const setTweenProgress = {
css: (t, p, v) => t.style[p] = v,
attribute: (t, p, v) => t.setAttribute(p, v),
object: (t, p, v) => t[p] = v,
transform: (t, p, v, transforms, id) => {
if (!transforms[id]) transforms[id] = [];
transforms[id].push(`${p}(${v})`);
}
}
// Animations
function createAnimation(animatable, prop) {
const animType = getAnimationType(animatable.target, prop.name);
if (animType) {
const tweens = normalizeTweens(prop, animatable);
return {
type: animType,
property: prop.name,
animatable: animatable,
tweens: tweens,
duration: tweens[tweens.length - 1].end,
delay: tweens[0].delay
}
}
}
function getAnimations(animatables, properties) {
return filterArray(flattenArray(animatables.map(animatable => {
return properties.map(prop => {
return createAnimation(animatable, prop);
});
})), a => !is.und(a));
}
// Create Instance
function getInstanceTimings(type, animations, instanceSettings, tweenSettings) {
const isDelay = (type === 'delay');
if (animations.length) {
return (isDelay ? Math.min : Math.max).apply(Math, animations.map(anim => anim[type]));
} else {
return isDelay ? tweenSettings.delay : instanceSettings.offset + tweenSettings.delay + tweenSettings.duration;
}
}
function createNewInstance(params) {
const instanceSettings = replaceObjectProps(defaultInstanceSettings, params);
const tweenSettings = replaceObjectProps(defaultTweenSettings, params);
const animatables = getAnimatables(params.targets);
const properties = getProperties(instanceSettings, tweenSettings, params);
const animations = getAnimations(animatables, properties);
return mergeObjects(instanceSettings, {
children: [],
animatables: animatables,
animations: animations,
duration: getInstanceTimings('duration', animations, instanceSettings, tweenSettings),
delay: getInstanceTimings('delay', animations, instanceSettings, tweenSettings)
});
}
// Core
let activeInstances = [];
let raf = 0;
const engine = (() => {
function play() { raf = requestAnimationFrame(step); };
function step(t) {
const activeLength = activeInstances.length;
if (activeLength) {
let i = 0;
while (i < activeLength) {
if (activeInstances[i]) activeInstances[i].tick(t);
i++;
}
play();
} else {
cancelAnimationFrame(raf);
raf = 0;
}
}
return play;
})();
// Public Instance
function anime(params = {}) {
let now, startTime, lastTime = 0;
let resolve = null;
function makePromise() {
return window.Promise && new Promise(_resolve => resolve = _resolve);
}
let promise = makePromise();
let instance = createNewInstance(params);
function toggleInstanceDirection() {
instance.reversed = !instance.reversed;
}
function adjustTime(time) {
return instance.reversed ? instance.duration - time : time;
}
function syncInstanceChildren(time) {
const children = instance.children;
const childrenLength = children.length;
if (time >= instance.currentTime) {
for (let i = 0; i < childrenLength; i++) children[i].seek(time);
} else {
for (let i = childrenLength; i--;) children[i].seek(time);
}
}
function setAnimationsProgress(insTime) {
let i = 0;
let transforms = {};
const animations = instance.animations;
const animationsLength = animations.length;
while (i < animationsLength) {
const anim = animations[i];
const animatable = anim.animatable;
const tweens = anim.tweens;
const tweenLength = tweens.length - 1;
let tween = tweens[tweenLength];
// Only check for keyframes if there is more than one tween
if (tweenLength) tween = filterArray(tweens, t => (insTime < t.end))[0] || tween;
const elapsed = minMaxValue(insTime - tween.start - tween.delay, 0, tween.duration) / tween.duration;
const eased = isNaN(elapsed) ? 1 : tween.easing(elapsed, tween.elasticity);
const strings = tween.to.strings;
const round = tween.round;
let numbers = [];
let progress;
const toNumbersLength = tween.to.numbers.length;
for (let n = 0; n < toNumbersLength; n++) {
let value;
const toNumber = tween.to.numbers[n];
const fromNumber = tween.from.numbers[n];
if (!tween.isPath) {
value = fromNumber + (eased * (toNumber - fromNumber));
} else {
value = getPathProgress(tween.value, eased * toNumber);
}
if (round) {
if (!(tween.isColor && n > 2)) {
value = Math.round(value * round) / round;
}
}
numbers.push(value);
}
// Manual Array.reduce for better performances
const stringsLength = strings.length;
if (!stringsLength) {
progress = numbers[0];
} else {
progress = strings[0];
for (let s = 0; s < stringsLength; s++) {
const a = strings[s];
const b = strings[s + 1];
const n = numbers[s];
if (!isNaN(n)) {
if (!b) {
progress += n + ' ';
} else {
progress += n + b;
}
}
}
}
setTweenProgress[anim.type](animatable.target, anim.property, progress, transforms, animatable.id);
anim.currentValue = progress;
i++;
}
const transformsLength = Object.keys(transforms).length;
if (transformsLength) {
for (let id = 0; id < transformsLength; id++) {
if (!transformString) {
const t = 'transform';
transformString = (getCSSValue(document.body, t) ? t : `-webkit-${t}`);
}
instance.animatables[id].target.style[transformString] = transforms[id].join(' ');
}
}
instance.currentTime = insTime;
instance.progress = (insTime / instance.duration) * 100;
}
function setCallback(cb) {
if (instance[cb]) instance[cb](instance);
}
function countIteration() {
if (instance.remaining && instance.remaining !== true) {
instance.remaining--;
}
}
function setInstanceProgress(engineTime) {
const insDuration = instance.duration;
const insOffset = instance.offset;
const insStart = insOffset + instance.delay;
const insCurrentTime = instance.currentTime;
const insReversed = instance.reversed;
const insTime = adjustTime(engineTime);
if (instance.children.length) syncInstanceChildren(insTime);
if (insTime >= insStart || !insDuration) {
if (!instance.began) {
instance.began = true;
setCallback('begin');
}
setCallback('run');
}
if (insTime > insOffset && insTime < insDuration) {
setAnimationsProgress(insTime);
} else {
if (insTime <= insOffset && insCurrentTime !== 0) {
setAnimationsProgress(0);
if (insReversed) countIteration();
}
if ((insTime >= insDuration && insCurrentTime !== insDuration) || !insDuration) {
setAnimationsProgress(insDuration);
if (!insReversed) countIteration();
}
}
setCallback('update');
if (engineTime >= insDuration) {
if (instance.remaining) {
startTime = now;
if (instance.direction === 'alternate') toggleInstanceDirection();
} else {
instance.pause();
if (!instance.completed) {
instance.completed = true;
setCallback('complete');
if ('Promise' in window) {
resolve();
promise = makePromise();
}
}
}
lastTime = 0;
}
}
instance.reset = function() {
const direction = instance.direction;
const loops = instance.loop;
instance.currentTime = 0;
instance.progress = 0;
instance.paused = true;
instance.began = false;
instance.completed = false;
instance.reversed = direction === 'reverse';
instance.remaining = direction === 'alternate' && loops === 1 ? 2 : loops;
setAnimationsProgress(0);
for (let i = instance.children.length; i--; ){
instance.children[i].reset();
}
}
instance.tick = function(t) {
now = t;
if (!startTime) startTime = now;
const engineTime = (lastTime + now - startTime) * anime.speed;
setInstanceProgress(engineTime);
}
instance.seek = function(time) {
setInstanceProgress(adjustTime(time));
}
instance.pause = function() {
const i = activeInstances.indexOf(instance);
if (i > -1) activeInstances.splice(i, 1);
instance.paused = true;
}
instance.play = function() {
if (!instance.paused) return;
instance.paused = false;
startTime = 0;
lastTime = adjustTime(instance.currentTime);
activeInstances.push(instance);
if (!raf) engine();
}
instance.reverse = function() {
toggleInstanceDirection();
startTime = 0;
lastTime = adjustTime(instance.currentTime);
}
instance.restart = function() {
instance.pause();
instance.reset();
instance.play();
}
instance.finished = promise;
instance.reset();
if (instance.autoplay) instance.play();
return instance;
}
// Remove targets from animation
function removeTargets(targets) {
const targetsArray = parseTargets(targets);
for (let i = activeInstances.length; i--;) {
const instance = activeInstances[i];
const animations = instance.animations;
for (let a = animations.length; a--;) {
if (arrayContains(targetsArray, animations[a].animatable.target)) {
animations.splice(a, 1);
if (!animations.length) instance.pause();
}
}
}
}
// Timeline
function timeline(params) {
let tl = anime(params);
tl.pause();
tl.duration = 0;
tl.add = function(instancesParams) {
tl.children.forEach(i => { i.began = true; i.completed = true; });
toArray(instancesParams).forEach(instanceParams => {
let insParams = mergeObjects(instanceParams, replaceObjectProps(defaultTweenSettings, params || {}));
insParams.targets = insParams.targets || params.targets;
const tlDuration = tl.duration;
const insOffset = insParams.offset;
insParams.autoplay = false;
insParams.direction = tl.direction;
insParams.offset = is.und(insOffset) ? tlDuration : getRelativeValue(insOffset, tlDuration);
tl.began = true;
tl.completed = true;
tl.seek(insParams.offset);
const ins = anime(insParams);
ins.began = true;
ins.completed = true;
if (ins.duration > tlDuration) tl.duration = ins.duration;
tl.children.push(ins);
});
tl.seek(0);
tl.reset();
if (tl.autoplay) tl.restart();
return tl;
}
return tl;
}
anime.version = '2.2.0';
anime.speed = 1;
anime.running = activeInstances;
anime.remove = removeTargets;
anime.getValue = getOriginalTargetValue;
anime.path = getPath;
anime.setDashoffset = setDashoffset;
anime.bezier = bezier;
anime.easings = easings;
anime.timeline = timeline;
anime.random = (min, max) => Math.floor(Math.random() * (max - min + 1)) + min;
return anime;
}));