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February 11, 2019 15:17
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/* | |
* anime.js v3.0.1 | |
* (c) 2019 Julian Garnier | |
* Released under the MIT license | |
* animejs.com | |
*/ | |
'use strict'; | |
// Defaults | |
var defaultInstanceSettings = { | |
update: null, | |
begin: null, | |
loopBegin: null, | |
changeBegin: null, | |
change: null, | |
changeComplete: null, | |
loopComplete: null, | |
complete: null, | |
loop: 1, | |
direction: 'normal', | |
autoplay: true, | |
timelineOffset: 0 | |
}; | |
var defaultTweenSettings = { | |
duration: 1000, | |
delay: 0, | |
endDelay: 0, | |
easing: 'easeOutElastic(1, .5)', | |
round: 0 | |
}; | |
var validTransforms = ['translateX', 'translateY', 'translateZ', 'rotate', 'rotateX', 'rotateY', 'rotateZ', 'scale', 'scaleX', 'scaleY', 'scaleZ', 'skew', 'skewX', 'skewY', 'perspective']; | |
// Caching | |
var cache = { | |
CSS: {}, | |
springs: {} | |
}; | |
// Utils | |
function minMax(val, min, max) { | |
return Math.min(Math.max(val, min), max); | |
} | |
function stringContains(str, text) { | |
return str.indexOf(text) > -1; | |
} | |
function applyArguments(func, args) { | |
return func.apply(null, args); | |
} | |
var is = { | |
arr: function (a) { return Array.isArray(a); }, | |
obj: function (a) { return stringContains(Object.prototype.toString.call(a), 'Object'); }, | |
pth: function (a) { return is.obj(a) && a.hasOwnProperty('totalLength'); }, | |
svg: function (a) { return a instanceof SVGElement; }, | |
inp: function (a) { return a instanceof HTMLInputElement; }, | |
dom: function (a) { return a.nodeType || is.svg(a); }, | |
str: function (a) { return typeof a === 'string'; }, | |
fnc: function (a) { return typeof a === 'function'; }, | |
und: function (a) { return typeof a === 'undefined'; }, | |
hex: function (a) { return /(^#[0-9A-F]{6}$)|(^#[0-9A-F]{3}$)/i.test(a); }, | |
rgb: function (a) { return /^rgb/.test(a); }, | |
hsl: function (a) { return /^hsl/.test(a); }, | |
col: function (a) { return (is.hex(a) || is.rgb(a) || is.hsl(a)); }, | |
key: function (a) { return !defaultInstanceSettings.hasOwnProperty(a) && !defaultTweenSettings.hasOwnProperty(a) && a !== 'targets' && a !== 'keyframes'; } | |
}; | |
// Easings | |
function parseEasingParameters(string) { | |
var match = /\(([^)]+)\)/.exec(string); | |
return match ? match[1].split(',').map(function (p) { return parseFloat(p); }) : []; | |
} | |
// Spring solver inspired by Webkit Copyright © 2016 Apple Inc. All rights reserved. https://webkit.org/demos/spring/spring.js | |
function spring(string, duration) { | |
var params = parseEasingParameters(string); | |
var mass = minMax(is.und(params[0]) ? 1 : params[0], .1, 100); | |
var stiffness = minMax(is.und(params[1]) ? 100 : params[1], .1, 100); | |
var damping = minMax(is.und(params[2]) ? 10 : params[2], .1, 100); | |
var velocity = minMax(is.und(params[3]) ? 0 : params[3], .1, 100); | |
var w0 = Math.sqrt(stiffness / mass); | |
var zeta = damping / (2 * Math.sqrt(stiffness * mass)); | |
var wd = zeta < 1 ? w0 * Math.sqrt(1 - zeta * zeta) : 0; | |
var a = 1; | |
var b = zeta < 1 ? (zeta * w0 + -velocity) / wd : -velocity + w0; | |
function solver(t) { | |
var progress = duration ? (duration * t) / 1000 : t; | |
if (zeta < 1) { | |
progress = Math.exp(-progress * zeta * w0) * (a * Math.cos(wd * progress) + b * Math.sin(wd * progress)); | |
} else { | |
progress = (a + b * progress) * Math.exp(-progress * w0); | |
} | |
if (t === 0 || t === 1) { return t; } | |
return 1 - progress; | |
} | |
function getDuration() { | |
var cached = cache.springs[string]; | |
if (cached) { return cached; } | |
var frame = 1/6; | |
var elapsed = 0; | |
var rest = 0; | |
while(true) { | |
elapsed += frame; | |
if (solver(elapsed) === 1) { | |
rest++; | |
if (rest >= 16) { break; } | |
} else { | |
rest = 0; | |
} | |
} | |
var duration = elapsed * frame * 1000; | |
cache.springs[string] = duration; | |
return duration; | |
} | |
return duration ? solver : getDuration; | |
} | |
// Elastic easing adapted from jQueryUI http://api.jqueryui.com/easings/ | |
function elastic(amplitude, period) { | |
if ( amplitude === void 0 ) amplitude = 1; | |
if ( period === void 0 ) period = .5; | |
var a = minMax(amplitude, 1, 10); | |
var p = minMax(period, .1, 2); | |
return function (t) { | |
return (t === 0 || t === 1) ? t : | |
-a * Math.pow(2, 10 * (t - 1)) * Math.sin((((t - 1) - (p / (Math.PI * 2) * Math.asin(1 / a))) * (Math.PI * 2)) / p); | |
} | |
} | |
// Basic steps easing implementation https://developer.mozilla.org/fr/docs/Web/CSS/transition-timing-function | |
function steps(steps) { | |
if ( steps === void 0 ) steps = 10; | |
return function (t) { return Math.round(t * steps) * (1 / steps); }; | |
} | |
// BezierEasing https://github.com/gre/bezier-easing | |
var bezier = (function () { | |
var kSplineTableSize = 11; | |
var 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) { | |
var 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 (var i = 0; i < 4; ++i) { | |
var currentSlope = getSlope(aGuessT, mX1, mX2); | |
if (currentSlope === 0.0) { return aGuessT; } | |
var 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; } | |
var sampleValues = new Float32Array(kSplineTableSize); | |
if (mX1 !== mY1 || mX2 !== mY2) { | |
for (var i = 0; i < kSplineTableSize; ++i) { | |
sampleValues[i] = calcBezier(i * kSampleStepSize, mX1, mX2); | |
} | |
} | |
function getTForX(aX) { | |
var intervalStart = 0; | |
var currentSample = 1; | |
var lastSample = kSplineTableSize - 1; | |
for (; currentSample !== lastSample && sampleValues[currentSample] <= aX; ++currentSample) { | |
intervalStart += kSampleStepSize; | |
} | |
--currentSample; | |
var dist = (aX - sampleValues[currentSample]) / (sampleValues[currentSample + 1] - sampleValues[currentSample]); | |
var guessForT = intervalStart + dist * kSampleStepSize; | |
var 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 function (x) { | |
if (mX1 === mY1 && mX2 === mY2) { return x; } | |
if (x === 0 || x === 1) { return x; } | |
return calcBezier(getTForX(x), mY1, mY2); | |
} | |
} | |
return bezier; | |
})(); | |
var penner = (function () { | |
var names = ['Quad', 'Cubic', 'Quart', 'Quint', 'Sine', 'Expo', 'Circ', 'Back', 'Elastic']; | |
// Approximated Penner equations http://matthewlein.com/ceaser/ | |
var curves = { | |
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 */ | |
function (a, p) { return function (t) { return 1 - elastic(a, p)(1 - t); }; } /* 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 */ | |
function (a, p) { return function (t) { return t < .5 ? elastic(a, p)(t * 2) / 2 : 1 - elastic(a, p)(t * -2 + 2) / 2; }; } /* inOutElastic */ | |
] | |
}; | |
var eases = { | |
linear: [0.250, 0.250, 0.750, 0.750] | |
}; | |
var loop = function ( coords ) { | |
curves[coords].forEach(function (ease, i) { | |
eases['ease'+coords+names[i]] = ease; | |
}); | |
}; | |
for (var coords in curves) loop( coords ); | |
return eases; | |
})(); | |
function parseEasings(easing, duration) { | |
if (is.fnc(easing)) { return easing; } | |
var name = easing.split('(')[0]; | |
var ease = penner[name]; | |
var args = parseEasingParameters(easing); | |
switch (name) { | |
case 'spring' : return spring(easing, duration); | |
case 'cubicBezier' : return applyArguments(bezier, args); | |
case 'steps' : return applyArguments(steps, args); | |
default : return is.fnc(ease) ? applyArguments(ease, args) : applyArguments(bezier, ease); | |
} | |
} | |
// Strings | |
function selectString(str) { | |
try { | |
var nodes = document.querySelectorAll(str); | |
return nodes; | |
} catch(e) { | |
return; | |
} | |
} | |
// Arrays | |
function filterArray(arr, callback) { | |
var len = arr.length; | |
var thisArg = arguments.length >= 2 ? arguments[1] : void 0; | |
var result = []; | |
for (var i = 0; i < len; i++) { | |
if (i in arr) { | |
var val = arr[i]; | |
if (callback.call(thisArg, val, i, arr)) { | |
result.push(val); | |
} | |
} | |
} | |
return result; | |
} | |
function flattenArray(arr) { | |
return arr.reduce(function (a, b) { return 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(function (a) { return a === val; }); | |
} | |
// Objects | |
function cloneObject(o) { | |
var clone = {}; | |
for (var p in o) { clone[p] = o[p]; } | |
return clone; | |
} | |
function replaceObjectProps(o1, o2) { | |
var o = cloneObject(o1); | |
for (var p in o1) { o[p] = o2.hasOwnProperty(p) ? o2[p] : o1[p]; } | |
return o; | |
} | |
function mergeObjects(o1, o2) { | |
var o = cloneObject(o1); | |
for (var p in o2) { o[p] = is.und(o1[p]) ? o2[p] : o1[p]; } | |
return o; | |
} | |
// Colors | |
function rgbToRgba(rgbValue) { | |
var rgb = /rgb\((\d+,\s*[\d]+,\s*[\d]+)\)/g.exec(rgbValue); | |
return rgb ? ("rgba(" + (rgb[1]) + ",1)") : rgbValue; | |
} | |
function hexToRgba(hexValue) { | |
var rgx = /^#?([a-f\d])([a-f\d])([a-f\d])$/i; | |
var hex = hexValue.replace(rgx, function (m, r, g, b) { return r + r + g + g + b + b; } ); | |
var rgb = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex); | |
var r = parseInt(rgb[1], 16); | |
var g = parseInt(rgb[2], 16); | |
var b = parseInt(rgb[3], 16); | |
return ("rgba(" + r + "," + g + "," + b + ",1)"); | |
} | |
function hslToRgba(hslValue) { | |
var hsl = /hsl\((\d+),\s*([\d.]+)%,\s*([\d.]+)%\)/g.exec(hslValue) || /hsla\((\d+),\s*([\d.]+)%,\s*([\d.]+)%,\s*([\d.]+)\)/g.exec(hslValue); | |
var h = parseInt(hsl[1], 10) / 360; | |
var s = parseInt(hsl[2], 10) / 100; | |
var l = parseInt(hsl[3], 10) / 100; | |
var 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; | |
} | |
var r, g, b; | |
if (s == 0) { | |
r = g = b = l; | |
} else { | |
var q = l < 0.5 ? l * (1 + s) : l + s - l * s; | |
var 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) { | |
var 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 getFunctionValue(val, animatable) { | |
if (!is.fnc(val)) { return val; } | |
return val(animatable.target, animatable.id, animatable.total); | |
} | |
function getAttribute(el, prop) { | |
return el.getAttribute(prop); | |
} | |
function convertPxToUnit(el, value, unit) { | |
var valueUnit = getUnit(value); | |
if (arrayContains([unit, 'deg', 'rad', 'turn'], valueUnit)) { return value; } | |
var cached = cache.CSS[value + unit]; | |
if (!is.und(cached)) { return cached; } | |
var baseline = 100; | |
var tempEl = document.createElement(el.tagName); | |
var parentEl = (el.parentNode && (el.parentNode !== document)) ? el.parentNode : document.body; | |
parentEl.appendChild(tempEl); | |
tempEl.style.position = 'absolute'; | |
tempEl.style.width = baseline + unit; | |
var factor = baseline / tempEl.offsetWidth; | |
parentEl.removeChild(tempEl); | |
var convertedUnit = factor * parseFloat(value); | |
cache.CSS[value + unit] = convertedUnit; | |
return convertedUnit; | |
} | |
function getCSSValue(el, prop, unit) { | |
if (prop in el.style) { | |
var uppercasePropName = prop.replace(/([a-z])([A-Z])/g, '$1-$2').toLowerCase(); | |
var value = el.style[prop] || getComputedStyle(el).getPropertyValue(uppercasePropName) || '0'; | |
return unit ? convertPxToUnit(el, value, unit) : value; | |
} | |
} | |
function getAnimationType(el, prop) { | |
if (is.dom(el) && !is.inp(el) && (getAttribute(el, prop) || (is.svg(el) && el[prop]))) { return 'attribute'; } | |
if (is.dom(el) && arrayContains(validTransforms, prop)) { return 'transform'; } | |
if (is.dom(el) && (prop !== 'transform' && getCSSValue(el, prop))) { return 'css'; } | |
if (el[prop] != null) { return 'object'; } | |
} | |
function getElementTransforms(el) { | |
if (!is.dom(el)) { return; } | |
var str = el.style.transform || ''; | |
var reg = /(\w+)\(([^)]*)\)/g; | |
var transforms = new Map(); | |
var m; while (m = reg.exec(str)) { transforms.set(m[1], m[2]); } | |
return transforms; | |
} | |
function getTransformValue(el, propName, animatable, unit) { | |
var defaultVal = stringContains(propName, 'scale') ? 1 : 0 + getTransformUnit(propName); | |
var value = getElementTransforms(el).get(propName) || defaultVal; | |
if (animatable) { | |
animatable.transforms.list.set(propName, value); | |
animatable.transforms['last'] = propName; | |
} | |
return unit ? convertPxToUnit(el, value, unit) : value; | |
} | |
function getOriginalTargetValue(target, propName, unit, animatable) { | |
switch (getAnimationType(target, propName)) { | |
case 'transform': return getTransformValue(target, propName, animatable, unit); | |
case 'css': return getCSSValue(target, propName, unit); | |
case 'attribute': return getAttribute(target, propName); | |
default: return target[propName] || 0; | |
} | |
} | |
function getRelativeValue(to, from) { | |
var operator = /^(\*=|\+=|-=)/.exec(to); | |
if (!operator) { return to; } | |
var u = getUnit(to) || 0; | |
var x = parseFloat(from); | |
var 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); } | |
var originalUnit = getUnit(val); | |
var 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 Math.PI * 2 * getAttribute(el, 'r'); | |
} | |
function getRectLength(el) { | |
return (getAttribute(el, 'width') * 2) + (getAttribute(el, 'height') * 2); | |
} | |
function getLineLength(el) { | |
return getDistance( | |
{x: getAttribute(el, 'x1'), y: getAttribute(el, 'y1')}, | |
{x: getAttribute(el, 'x2'), y: getAttribute(el, 'y2')} | |
); | |
} | |
function getPolylineLength(el) { | |
var points = el.points; | |
var totalLength = 0; | |
var previousPos; | |
for (var i = 0 ; i < points.numberOfItems; i++) { | |
var currentPos = points.getItem(i); | |
if (i > 0) { totalLength += getDistance(previousPos, currentPos); } | |
previousPos = currentPos; | |
} | |
return totalLength; | |
} | |
function getPolygonLength(el) { | |
var 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) { | |
var pathLength = getTotalLength(el); | |
el.setAttribute('stroke-dasharray', pathLength); | |
return pathLength; | |
} | |
// Motion path | |
function getParentSvgEl(el) { | |
var parentEl = el.parentNode; | |
while (is.svg(parentEl)) { | |
parentEl = parentEl.parentNode; | |
if (!is.svg(parentEl.parentNode)) { break; } | |
} | |
return parentEl; | |
} | |
function getParentSvg(pathEl, svgData) { | |
var svg = svgData || {}; | |
var parentSvgEl = svg.el || getParentSvgEl(pathEl); | |
var rect = parentSvgEl.getBoundingClientRect(); | |
var viewBoxAttr = getAttribute(parentSvgEl, 'viewBox'); | |
var width = rect.width; | |
var height = rect.height; | |
var viewBox = svg.viewBox || (viewBoxAttr ? viewBoxAttr.split(' ') : [0, 0, width, height]); | |
return { | |
el: parentSvgEl, | |
viewBox: viewBox, | |
x: viewBox[0] / 1, | |
y: viewBox[1] / 1, | |
w: width / viewBox[2], | |
h: height / viewBox[3] | |
} | |
} | |
function getPath(path, percent) { | |
var pathEl = is.str(path) ? selectString(path)[0] : path; | |
var p = percent || 100; | |
return function(property) { | |
return { | |
property: property, | |
el: pathEl, | |
svg: getParentSvg(pathEl), | |
totalLength: getTotalLength(pathEl) * (p / 100) | |
} | |
} | |
} | |
function getPathProgress(path, progress) { | |
function point(offset) { | |
if ( offset === void 0 ) offset = 0; | |
var l = progress + offset >= 1 ? progress + offset : 0; | |
return path.el.getPointAtLength(l); | |
} | |
var svg = getParentSvg(path.el, path.svg); | |
var p = point(); | |
var p0 = point(-1); | |
var p1 = point(+1); | |
switch (path.property) { | |
case 'x': return (p.x - svg.x) * svg.w; | |
case 'y': return (p.y - svg.y) * svg.h; | |
case 'angle': return Math.atan2(p1.y - p0.y, p1.x - p0.x) * 180 / Math.PI; | |
} | |
} | |
// Decompose value | |
function decomposeValue(val, unit) { | |
var rgx = /-?\d*\.?\d+/g; | |
var 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) { | |
var targetsArray = targets ? (flattenArray(is.arr(targets) ? targets.map(toArray) : toArray(targets))) : []; | |
return filterArray(targetsArray, function (item, pos, self) { return self.indexOf(item) === pos; }); | |
} | |
function getAnimatables(targets) { | |
var parsed = parseTargets(targets); | |
return parsed.map(function (t, i) { | |
return {target: t, id: i, total: parsed.length, transforms: { list: getElementTransforms(t) } }; | |
}); | |
} | |
// Properties | |
function normalizePropertyTweens(prop, tweenSettings) { | |
var settings = cloneObject(tweenSettings); | |
// Override duration if easing is a spring | |
if (/^spring/.test(settings.easing)) { settings.duration = spring(settings.easing); } | |
if (is.arr(prop)) { | |
var l = prop.length; | |
var 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}; | |
} | |
} | |
var propArray = is.arr(prop) ? prop : [prop]; | |
return propArray.map(function (v, i) { | |
var obj = (is.obj(v) && !is.pth(v)) ? v : {value: v}; | |
// Default delay value should only be applied to the first tween | |
if (is.und(obj.delay)) { obj.delay = !i ? tweenSettings.delay : 0; } | |
// Default endDelay value should only be applied to the last tween | |
if (is.und(obj.endDelay)) { obj.endDelay = i === propArray.length - 1 ? tweenSettings.endDelay : 0; } | |
return obj; | |
}).map(function (k) { return mergeObjects(k, settings); }); | |
} | |
function flattenKeyframes(keyframes) { | |
var propertyNames = filterArray(flattenArray(keyframes.map(function (key) { return Object.keys(key); })), function (p) { return is.key(p); }) | |
.reduce(function (a,b) { if (a.indexOf(b) < 0) { a.push(b); } return a; }, []); | |
var properties = {}; | |
var loop = function ( i ) { | |
var propName = propertyNames[i]; | |
properties[propName] = keyframes.map(function (key) { | |
var newKey = {}; | |
for (var p in key) { | |
if (is.key(p)) { | |
if (p == propName) { newKey.value = key[p]; } | |
} else { | |
newKey[p] = key[p]; | |
} | |
} | |
return newKey; | |
}); | |
}; | |
for (var i = 0; i < propertyNames.length; i++) loop( i ); | |
return properties; | |
} | |
function getProperties(tweenSettings, params) { | |
var properties = []; | |
var keyframes = params.keyframes; | |
if (keyframes) { params = mergeObjects(flattenKeyframes(keyframes), params); } | |
for (var p in params) { | |
if (is.key(p)) { | |
properties.push({ | |
name: p, | |
tweens: normalizePropertyTweens(params[p], tweenSettings) | |
}); | |
} | |
} | |
return properties; | |
} | |
// Tweens | |
function normalizeTweenValues(tween, animatable) { | |
var t = {}; | |
for (var p in tween) { | |
var value = getFunctionValue(tween[p], animatable); | |
if (is.arr(value)) { | |
value = value.map(function (v) { return 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 normalizeTweens(prop, animatable) { | |
var previousTween; | |
return prop.tweens.map(function (t) { | |
var tween = normalizeTweenValues(t, animatable); | |
var tweenValue = tween.value; | |
var to = is.arr(tweenValue) ? tweenValue[1] : tweenValue; | |
var toUnit = getUnit(to); | |
var originalValue = getOriginalTargetValue(animatable.target, prop.name, toUnit, animatable); | |
var previousValue = previousTween ? previousTween.to.original : originalValue; | |
var from = is.arr(tweenValue) ? tweenValue[0] : previousValue; | |
var fromUnit = getUnit(from) || getUnit(originalValue); | |
var unit = toUnit || fromUnit; | |
if (is.und(to)) { to = previousValue; } | |
tween.from = decomposeValue(from, unit); | |
tween.to = decomposeValue(getRelativeValue(to, from), unit); | |
tween.start = previousTween ? previousTween.end : 0; | |
tween.end = tween.start + tween.delay + tween.duration + tween.endDelay; | |
tween.easing = parseEasings(tween.easing, tween.duration); | |
tween.isPath = is.pth(tweenValue); | |
tween.isColor = is.col(tween.from.original); | |
if (tween.isColor) { tween.round = 1; } | |
previousTween = tween; | |
return tween; | |
}); | |
} | |
// Tween progress | |
var setProgressValue = { | |
css: function (t, p, v) { return t.style[p] = v; }, | |
attribute: function (t, p, v) { return t.setAttribute(p, v); }, | |
object: function (t, p, v) { return t[p] = v; }, | |
transform: function (t, p, v, transforms, manual) { | |
transforms.list.set(p, v); | |
if (p === transforms.last || manual) { | |
var str = ''; | |
transforms.list.forEach(function (value, prop) { str += prop + "(" + value + ") "; }); | |
t.style.transform = str; | |
} | |
} | |
}; | |
// Set Value helper | |
function setTargetsValue(targets, properties) { | |
var animatables = getAnimatables(targets); | |
animatables.forEach(function (animatable) { | |
for (var property in properties) { | |
var value = getFunctionValue(properties[property], animatable); | |
var target = animatable.target; | |
var valueUnit = getUnit(value); | |
var originalValue = getOriginalTargetValue(target, property, valueUnit, animatable); | |
var unit = valueUnit || getUnit(originalValue); | |
var to = getRelativeValue(validateValue(value, unit), originalValue); | |
var animType = getAnimationType(target, property); | |
setProgressValue[animType](target, property, to, animatable.transforms, true); | |
} | |
}); | |
} | |
// Animations | |
function createAnimation(animatable, prop) { | |
var animType = getAnimationType(animatable.target, prop.name); | |
if (animType) { | |
var tweens = normalizeTweens(prop, animatable); | |
var lastTween = tweens[tweens.length - 1]; | |
return { | |
type: animType, | |
property: prop.name, | |
animatable: animatable, | |
tweens: tweens, | |
duration: lastTween.end, | |
delay: tweens[0].delay, | |
endDelay: lastTween.endDelay | |
} | |
} | |
} | |
function getAnimations(animatables, properties) { | |
return filterArray(flattenArray(animatables.map(function (animatable) { | |
return properties.map(function (prop) { | |
return createAnimation(animatable, prop); | |
}); | |
})), function (a) { return !is.und(a); }); | |
} | |
// Create Instance | |
function getInstanceTimings(animations, tweenSettings) { | |
var animLength = animations.length; | |
var getTlOffset = function (anim) { return anim.timelineOffset ? anim.timelineOffset : 0; }; | |
var timings = {}; | |
timings.duration = animLength ? Math.max.apply(Math, animations.map(function (anim) { return getTlOffset(anim) + anim.duration; })) : tweenSettings.duration; | |
timings.delay = animLength ? Math.min.apply(Math, animations.map(function (anim) { return getTlOffset(anim) + anim.delay; })) : tweenSettings.delay; | |
timings.endDelay = animLength ? timings.duration - Math.max.apply(Math, animations.map(function (anim) { return getTlOffset(anim) + anim.duration - anim.endDelay; })) : tweenSettings.endDelay; | |
return timings; | |
} | |
var instanceID = 0; | |
function createNewInstance(params) { | |
var instanceSettings = replaceObjectProps(defaultInstanceSettings, params); | |
var tweenSettings = replaceObjectProps(defaultTweenSettings, params); | |
var properties = getProperties(tweenSettings, params); | |
var animatables = getAnimatables(params.targets); | |
var animations = getAnimations(animatables, properties); | |
var timings = getInstanceTimings(animations, tweenSettings); | |
var id = instanceID; | |
instanceID++; | |
return mergeObjects(instanceSettings, { | |
id: id, | |
children: [], | |
animatables: animatables, | |
animations: animations, | |
duration: timings.duration, | |
delay: timings.delay, | |
endDelay: timings.endDelay | |
}); | |
} | |
// Core | |
var activeInstances = []; | |
var pausedInstances = []; | |
var raf; | |
var engine = (function () { | |
function play() { | |
raf = requestAnimationFrame(step); | |
} | |
function step(t) { | |
var activeInstancesLength = activeInstances.length; | |
if (activeInstancesLength) { | |
var i = 0; | |
while (i < activeInstancesLength) { | |
var activeInstance = activeInstances[i]; | |
if (!activeInstance.paused) { | |
activeInstance.tick(t); | |
} else { | |
var instanceIndex = activeInstances.indexOf(activeInstance); | |
if (instanceIndex > -1) { | |
activeInstances.splice(instanceIndex, 1); | |
activeInstancesLength = activeInstances.length; | |
} | |
} | |
i++; | |
} | |
play(); | |
} else { | |
raf = cancelAnimationFrame(raf); | |
} | |
} | |
return play; | |
})(); | |
function handleVisibilityChange() { | |
if (document.hidden) { | |
activeInstances.forEach(function (ins) { return ins.pause(); }); | |
pausedInstances = activeInstances.slice(0); | |
activeInstances = []; | |
} else { | |
pausedInstances.forEach(function (ins) { return ins.play(); }); | |
} | |
} | |
if (typeof document !== 'undefined') { | |
document.addEventListener('visibilitychange', handleVisibilityChange); | |
} | |
// Public Instance | |
function anime(params) { | |
if ( params === void 0 ) params = {}; | |
var startTime = 0, lastTime = 0, now = 0; | |
var children, childrenLength = 0; | |
var resolve = null; | |
function makePromise(instance) { | |
var promise = window.Promise && new Promise(function (_resolve) { return resolve = _resolve; }); | |
instance.finished = promise; | |
return promise; | |
} | |
var instance = createNewInstance(params); | |
var promise = makePromise(instance); | |
function toggleInstanceDirection() { | |
var direction = instance.direction; | |
if (direction !== 'alternate') { | |
instance.direction = direction !== 'normal' ? 'normal' : 'reverse'; | |
} | |
instance.reversed = !instance.reversed; | |
children.forEach(function (child) { return child.reversed = instance.reversed; }); | |
} | |
function adjustTime(time) { | |
return instance.reversed ? instance.duration - time : time; | |
} | |
function resetTime() { | |
startTime = 0; | |
lastTime = adjustTime(instance.currentTime) * (1 / anime.speed); | |
} | |
function seekCild(time, child) { | |
if (child) { child.seek(time - child.timelineOffset); } | |
} | |
function syncInstanceChildren(time) { | |
if (!instance.reversePlayback) { | |
for (var i = 0; i < childrenLength; i++) { seekCild(time, children[i]); } | |
} else { | |
for (var i$1 = childrenLength; i$1--;) { seekCild(time, children[i$1]); } | |
} | |
} | |
function setAnimationsProgress(insTime) { | |
var i = 0; | |
var animations = instance.animations; | |
var animationsLength = animations.length; | |
while (i < animationsLength) { | |
var anim = animations[i]; | |
var animatable = anim.animatable; | |
var tweens = anim.tweens; | |
var tweenLength = tweens.length - 1; | |
var tween = tweens[tweenLength]; | |
// Only check for keyframes if there is more than one tween | |
if (tweenLength) { tween = filterArray(tweens, function (t) { return (insTime < t.end); })[0] || tween; } | |
var elapsed = minMax(insTime - tween.start - tween.delay, 0, tween.duration) / tween.duration; | |
var eased = isNaN(elapsed) ? 1 : tween.easing(elapsed); | |
var strings = tween.to.strings; | |
var round = tween.round; | |
var numbers = []; | |
var toNumbersLength = tween.to.numbers.length; | |
var progress = (void 0); | |
for (var n = 0; n < toNumbersLength; n++) { | |
var value = (void 0); | |
var toNumber = tween.to.numbers[n]; | |
var fromNumber = tween.from.numbers[n] || 0; | |
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 | |
var stringsLength = strings.length; | |
if (!stringsLength) { | |
progress = numbers[0]; | |
} else { | |
progress = strings[0]; | |
for (var s = 0; s < stringsLength; s++) { | |
var a = strings[s]; | |
var b = strings[s + 1]; | |
var n$1 = numbers[s]; | |
if (!isNaN(n$1)) { | |
if (!b) { | |
progress += n$1 + ' '; | |
} else { | |
progress += n$1 + b; | |
} | |
} | |
} | |
} | |
setProgressValue[anim.type](animatable.target, anim.property, progress, animatable.transforms); | |
anim.currentValue = progress; | |
i++; | |
} | |
} | |
function setCallback(cb) { | |
if (instance[cb] && !instance.passThrough) { instance[cb](instance); } | |
} | |
function countIteration() { | |
if (instance.remaining && instance.remaining !== true) { | |
instance.remaining--; | |
} | |
} | |
function setInstanceProgress(engineTime) { | |
var insDuration = instance.duration; | |
var insDelay = instance.delay; | |
var insEndDelay = insDuration - instance.endDelay; | |
var insTime = adjustTime(engineTime); | |
instance.progress = minMax((insTime / insDuration) * 100, 0, 100); | |
instance.reversePlayback = insTime < instance.currentTime; | |
if (children) { syncInstanceChildren(insTime); } | |
if (!instance.began && instance.currentTime > 0) { | |
instance.began = true; | |
setCallback('begin'); | |
setCallback('loopBegin'); | |
} | |
if (insTime <= insDelay && instance.currentTime !== 0) { | |
setAnimationsProgress(0); | |
} | |
if ((insTime >= insEndDelay && instance.currentTime !== insDuration) || !insDuration) { | |
setAnimationsProgress(insDuration); | |
} | |
if (insTime > insDelay && insTime < insEndDelay) { | |
if (!instance.changeBegan) { | |
instance.changeBegan = true; | |
instance.changeCompleted = false; | |
setCallback('changeBegin'); | |
} | |
setCallback('change'); | |
setAnimationsProgress(insTime); | |
} else { | |
if (instance.changeBegan) { | |
instance.changeCompleted = true; | |
instance.changeBegan = false; | |
setCallback('changeComplete'); | |
} | |
} | |
instance.currentTime = minMax(insTime, 0, insDuration); | |
if (instance.began) { setCallback('update'); } | |
if (engineTime >= insDuration) { | |
lastTime = 0; | |
countIteration(); | |
if (instance.remaining) { | |
startTime = now; | |
setCallback('loopComplete'); | |
setCallback('loopBegin'); | |
if (instance.direction === 'alternate') { toggleInstanceDirection(); } | |
} else { | |
instance.paused = true; | |
if (!instance.completed) { | |
instance.completed = true; | |
setCallback('loopComplete'); | |
setCallback('complete'); | |
if (!instance.passThrough && 'Promise' in window) { | |
resolve(); | |
promise = makePromise(instance); | |
} | |
} | |
} | |
} | |
} | |
instance.reset = function() { | |
var direction = instance.direction; | |
instance.passThrough = false; | |
instance.currentTime = 0; | |
instance.progress = 0; | |
instance.paused = true; | |
instance.began = false; | |
instance.changeBegan = false; | |
instance.completed = false; | |
instance.changeCompleted = false; | |
instance.reversePlayback = false; | |
instance.reversed = direction === 'reverse'; | |
instance.remaining = instance.loop; | |
children = instance.children; | |
childrenLength = children.length; | |
for (var i = childrenLength; i--;) { instance.children[i].reset(); } | |
if (instance.reversed && instance.loop !== true || (direction === 'alternate' && instance.loop === 1)) { instance.remaining++; } | |
setAnimationsProgress(0); | |
}; | |
// Set Value helper | |
instance.set = function(targets, properties) { | |
setTargetsValue(targets, properties); | |
return instance; | |
}; | |
instance.tick = function(t) { | |
now = t; | |
if (!startTime) { startTime = now; } | |
setInstanceProgress((now + (lastTime - startTime)) * anime.speed); | |
}; | |
instance.seek = function(time) { | |
setInstanceProgress(adjustTime(time)); | |
}; | |
instance.pause = function() { | |
instance.paused = true; | |
resetTime(); | |
}; | |
instance.play = function() { | |
if (!instance.paused) { return; } | |
if (instance.completed) { instance.reset(); } | |
instance.paused = false; | |
activeInstances.push(instance); | |
resetTime(); | |
if (!raf) { engine(); } | |
}; | |
instance.reverse = function() { | |
toggleInstanceDirection(); | |
resetTime(); | |
}; | |
instance.restart = function() { | |
instance.reset(); | |
instance.play(); | |
}; | |
instance.reset(); | |
if (instance.autoplay) { instance.play(); } | |
return instance; | |
} | |
// Remove targets from animation | |
function removeTargetsFromAnimations(targetsArray, animations) { | |
for (var a = animations.length; a--;) { | |
if (arrayContains(targetsArray, animations[a].animatable.target)) { | |
animations.splice(a, 1); | |
} | |
} | |
} | |
function removeTargets(targets) { | |
var targetsArray = parseTargets(targets); | |
for (var i = activeInstances.length; i--;) { | |
var instance = activeInstances[i]; | |
var animations = instance.animations; | |
var children = instance.children; | |
removeTargetsFromAnimations(targetsArray, animations); | |
for (var c = children.length; c--;) { | |
var child = children[c]; | |
var childAnimations = child.animations; | |
removeTargetsFromAnimations(targetsArray, childAnimations); | |
if (!childAnimations.length && !child.children.length) { children.splice(c, 1); } | |
} | |
if (!animations.length && !children.length) { instance.pause(); } | |
} | |
} | |
// Stagger helpers | |
function stagger(val, params) { | |
if ( params === void 0 ) params = {}; | |
var direction = params.direction || 'normal'; | |
var easing = params.easing ? parseEasings(params.easing) : null; | |
var grid = params.grid; | |
var axis = params.axis; | |
var fromIndex = params.from || 0; | |
var fromFirst = fromIndex === 'first'; | |
var fromCenter = fromIndex === 'center'; | |
var fromLast = fromIndex === 'last'; | |
var isRange = is.arr(val); | |
var val1 = isRange ? parseFloat(val[0]) : parseFloat(val); | |
var val2 = isRange ? parseFloat(val[1]) : 0; | |
var unit = getUnit(isRange ? val[1] : val) || 0; | |
var start = params.start || 0 + (isRange ? val1 : 0); | |
var values = []; | |
var maxValue = 0; | |
return function (el, i, t) { | |
if (fromFirst) { fromIndex = 0; } | |
if (fromCenter) { fromIndex = (t - 1) / 2; } | |
if (fromLast) { fromIndex = t - 1; } | |
if (!values.length) { | |
for (var index = 0; index < t; index++) { | |
if (!grid) { | |
values.push(Math.abs(fromIndex - index)); | |
} else { | |
var fromX = !fromCenter ? fromIndex%grid[0] : (grid[0]-1)/2; | |
var fromY = !fromCenter ? Math.floor(fromIndex/grid[0]) : (grid[1]-1)/2; | |
var toX = index%grid[0]; | |
var toY = Math.floor(index/grid[0]); | |
var distanceX = fromX - toX; | |
var distanceY = fromY - toY; | |
var value = Math.sqrt(distanceX * distanceX + distanceY * distanceY); | |
if (axis === 'x') { value = -distanceX; } | |
if (axis === 'y') { value = -distanceY; } | |
values.push(value); | |
} | |
maxValue = Math.max.apply(Math, values); | |
} | |
if (easing) { values = values.map(function (val) { return easing(val / maxValue) * maxValue; }); } | |
if (direction === 'reverse') { values = values.map(function (val) { return axis ? (val < 0) ? val * -1 : -val : Math.abs(maxValue - val); }); } | |
} | |
var spacing = isRange ? (val2 - val1) / maxValue : val1; | |
return start + (spacing * (Math.round(values[i] * 100) / 100)) + unit; | |
} | |
} | |
// Timeline | |
function timeline(params) { | |
if ( params === void 0 ) params = {}; | |
var tl = anime(params); | |
tl.duration = 0; | |
tl.add = function(instanceParams, timelineOffset) { | |
var tlIndex = activeInstances.indexOf(tl); | |
var children = tl.children; | |
if (tlIndex > -1) { activeInstances.splice(tlIndex, 1); } | |
function passThrough(ins) { ins.passThrough = true; } | |
for (var i = 0; i < children.length; i++) { passThrough(children[i]); } | |
var insParams = mergeObjects(instanceParams, replaceObjectProps(defaultTweenSettings, params)); | |
insParams.targets = insParams.targets || params.targets; | |
var tlDuration = tl.duration; | |
insParams.autoplay = false; | |
insParams.direction = tl.direction; | |
insParams.timelineOffset = is.und(timelineOffset) ? tlDuration : getRelativeValue(timelineOffset, tlDuration); | |
passThrough(tl); | |
tl.seek(insParams.timelineOffset); | |
var ins = anime(insParams); | |
passThrough(ins); | |
children.push(ins); | |
var timings = getInstanceTimings(children, params); | |
tl.delay = timings.delay; | |
tl.endDelay = timings.endDelay; | |
tl.duration = timings.duration; | |
tl.seek(0); | |
tl.reset(); | |
if (tl.autoplay) { tl.play(); } | |
return tl; | |
}; | |
return tl; | |
} | |
anime.version = '3.0.1'; | |
anime.speed = 1; | |
anime.running = activeInstances; | |
anime.remove = removeTargets; | |
anime.get = getOriginalTargetValue; | |
anime.set = setTargetsValue; | |
anime.convertPx = convertPxToUnit; | |
anime.path = getPath; | |
anime.setDashoffset = setDashoffset; | |
anime.stagger = stagger; | |
anime.timeline = timeline; | |
anime.easing = parseEasings; | |
anime.penner = penner; | |
anime.random = function (min, max) { return Math.floor(Math.random() * (max - min + 1)) + min; }; | |
// module.exports = anime; |
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