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Mini Shell
Mini Shell
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
typeof define === 'function' && define.amd ? define(factory) :
global.CountUp = factory()
}(this, function () {
'use strict';
/*
countUp.js
by @inorganik
*/
// target = id of html element or var of previously selected html element where counting occurs
// startVal = the value you want to begin at
// endVal = the value you want to arrive at
// decimals = number of decimal places, default 0
// duration = duration of animation in seconds, default 2
// options = optional object of options (see below)
var CountUp = function CountUp(target, startVal, endVal, decimals, duration, options) {
// make sure requestAnimationFrame and cancelAnimationFrame are defined
// polyfill for browsers without native support
// by Opera engineer Erik Möller
var lastTime = 0;
var vendors = ['webkit', 'moz', 'ms', 'o'];
for(var x = 0; x < vendors.length && !window.requestAnimationFrame; ++x) {
window.requestAnimationFrame = window[vendors[x]+'RequestAnimationFrame'];
window.cancelAnimationFrame =
window[vendors[x]+'CancelAnimationFrame'] || window[vendors[x]+'CancelRequestAnimationFrame'];
}
if (!window.requestAnimationFrame) {
window.requestAnimationFrame = function(callback, element) {
var currTime = new Date().getTime();
var timeToCall = Math.max(0, 16 - (currTime - lastTime));
var id = window.setTimeout(function() { callback(currTime + timeToCall); },
timeToCall);
lastTime = currTime + timeToCall;
return id;
}
}
if (!window.cancelAnimationFrame) {
window.cancelAnimationFrame = function(id) {
clearTimeout(id);
}
}
// default options
this.options = {
useEasing : true, // toggle easing
useGrouping : true, // 1,000,000 vs 1000000
separator : ',', // character to use as a separator
decimal : '.' // character to use as a decimal
}
// extend default options with input object
for (var key in options) {
if (options.hasOwnProperty(key)) {
this.options[key] = options[key];
}
}
if (this.options.separator == '') this.options.useGrouping = false;
if (this.options.prefix == null) this.options.prefix = '';
if (this.options.suffix == null) this.options.suffix = '';
var self = this;
this.d = (typeof target === 'string') ? document.getElementById(target) : target;
this.startVal = Number(startVal);
this.endVal = Number(endVal);
this.countDown = (this.startVal > this.endVal);
this.startTime = null;
this.timestamp = null;
this.remaining = null;
this.frameVal = this.startVal;
this.rAF = null;
this.decimals = Math.max(0, decimals || 0);
this.dec = Math.pow(10, this.decimals);
this.duration = duration * 1000 || 2000;
this.version = function () { return '1.5.0' }
// Print value to target
this.printValue = function(value) {
var result = (!isNaN(value)) ? self.formatNumber(value) : '--';
if (self.d.tagName == 'INPUT') {
this.d.value = result;
}
else if (self.d.tagName == 'text') {
this.d.textContent = result;
}
else {
this.d.innerHTML = result;
}
}
// Robert Penner's easeOutExpo
this.easeOutExpo = function(t, b, c, d) {
return c * (-Math.pow(2, -10 * t / d) + 1) * 1024 / 1023 + b;
}
this.count = function(timestamp) {
if (self.startTime === null) self.startTime = timestamp;
self.timestamp = timestamp;
var progress = timestamp - self.startTime;
self.remaining = self.duration - progress;
// to ease or not to ease
if (self.options.useEasing) {
if (self.countDown) {
var i = self.easeOutExpo(progress, 0, self.startVal - self.endVal, self.duration);
self.frameVal = self.startVal - i;
} else {
self.frameVal = self.easeOutExpo(progress, self.startVal, self.endVal - self.startVal, self.duration);
}
} else {
if (self.countDown) {
var i = (self.startVal - self.endVal) * (progress / self.duration);
self.frameVal = self.startVal - i;
} else {
self.frameVal = self.startVal + (self.endVal - self.startVal) * (progress / self.duration);
}
}
// don't go past endVal since progress can exceed duration in the last frame
if (self.countDown) {
self.frameVal = (self.frameVal < self.endVal) ? self.endVal : self.frameVal;
} else {
self.frameVal = (self.frameVal > self.endVal) ? self.endVal : self.frameVal;
}
// decimal
self.frameVal = Math.round(self.frameVal*self.dec)/self.dec;
// format and print value
self.printValue(self.frameVal);
// whether to continue
if (progress < self.duration) {
self.rAF = requestAnimationFrame(self.count);
} else {
if (self.callback != null) self.callback();
}
}
// start your animation
this.start = function(callback) {
self.callback = callback;
// make sure values are valid
if (!isNaN(self.endVal) && !isNaN(self.startVal)) {
self.rAF = requestAnimationFrame(self.count);
} else {
console.log('countUp error: startVal or endVal is not a number');
self.printValue();
}
return false;
}
// toggles pause/resume animation
this.pauseResume = function() {
if (!self.paused) {
self.paused = true;
cancelAnimationFrame(self.rAF);
} else {
self.paused = false;
self.startTime = null;
self.duration = self.remaining;
self.startVal = self.frameVal;
requestAnimationFrame(self.count);
}
}
// deprecated - use pauseResume()
this.stop = function() {
cancelAnimationFrame(self.rAF);
}
// deprecated - use pauseResume()
this.resume = function() {
self.stop();
self.startTime = null;
self.duration = self.remaining;
self.startVal = self.frameVal;
requestAnimationFrame(self.count);
}
// reset to startVal so animation can be run again
this.reset = function() {
self.paused = false;
self.startTime = null;
self.startVal = startVal;
cancelAnimationFrame(self.rAF);
self.printValue(self.startVal);
}
// pass a new endVal and start animation
this.update = function (newEndVal) {
cancelAnimationFrame(self.rAF);
self.paused = false;
self.startTime = null;
self.startVal = self.frameVal;
self.endVal = Number(newEndVal);
self.countDown = (self.startVal > self.endVal);
self.rAF = requestAnimationFrame(self.count);
}
this.formatNumber = function(nStr) {
nStr = nStr.toFixed(self.decimals);
nStr += '';
var x, x1, x2, rgx;
x = nStr.split('.');
x1 = x[0];
x2 = x.length > 1 ? self.options.decimal + x[1] : '';
rgx = /(\d+)(\d{3})/;
if (self.options.useGrouping) {
while (rgx.test(x1)) {
x1 = x1.replace(rgx, '$1' + self.options.separator + '$2');
}
}
return self.options.prefix + x1 + x2 + self.options.suffix;
}
// format startVal on initialization
self.printValue(self.startVal);
}
return CountUp;
}));
Zerion Mini Shell 1.0