ABPCMS.Web/Scripts/others/spinjs/spin.js

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/**
 * Copyright (c) 2011-2014 Felix Gnass
 * Licensed under the MIT license
 */
(function(root, factory) {

  /* CommonJS */
  if (typeof exports == 'object')  module.exports = factory()

  /* AMD module */
  else if (typeof define == 'function' && define.amd) define(factory)

  /* Browser global */
  else root.Spinner = factory()
}
(this, function() {
  "use strict";

  var prefixes = ['webkit', 'Moz', 'ms', 'O'] /* Vendor prefixes */
    , animations = {} /* Animation rules keyed by their name */
    , useCssAnimations /* Whether to use CSS animations or setTimeout */

  /**
   * Utility function to create elements. If no tag name is given,
   * a DIV is created. Optionally properties can be passed.
   */
  function createEl(tag, prop) {
    var el = document.createElement(tag || 'div')
      , n

    for(n in prop) el[n] = prop[n]
    return el
  }

  /**
   * Appends children and returns the parent.
   */
  function ins(parent /* child1, child2, ...*/) {
    for (var i=1, n=arguments.length; i<n; i++)
      parent.appendChild(arguments[i])

    return parent
  }

  /**
   * Insert a new stylesheet to hold the @keyframe or VML rules.
   */
  var sheet = (function() {
    var el = createEl('style', {type : 'text/css'})
    ins(document.getElementsByTagName('head')[0], el)
    return el.sheet || el.styleSheet
  }())

  /**
   * Creates an opacity keyframe animation rule and returns its name.
   * Since most mobile Webkits have timing issues with animation-delay,
   * we create separate rules for each line/segment.
   */
  function addAnimation(alpha, trail, i, lines) {
    var name = ['opacity', trail, ~~(alpha*100), i, lines].join('-')