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eq.js v1.9.0 (c) 2013-2016 Sam Richard, MIT license */\n/*\n * The global eqjs object that contains all eq.js functionality.\n *\n * eqjs.nodes - List of all nodes to act upon when eqjs.states is called\n * eqjs.nodesLength - Number of nodes in eqjs.nodes\n *\n * eqjs.refreshNodes - Call this function to refresh the list of nodes that eq.js should act on\n * eqjs.sortObj - Sorts a key: value object based on value\n * eqjs.query - Runs through all nodes and finds their widths and points\n * eqjs.nodeWrites - Runs through all nodes and writes their eq status\n */\n(function (eqjs) {\n  'use strict';\n\n  function EQjs() {\n    this.nodes = [];\n    this.eqsLength = 0;\n    this.widths = [];\n    this.points = [];\n    this.callback = undefined;\n  }\n\n  /*\n   * Add event (cross browser)\n   * From http://stackoverflow.com/a/10150042\n   */\n  function addEvent(elem, event, fn) {\n    if (elem.addEventListener) {\n      elem.addEventListener(event, fn, false);\n    } else {\n      elem.attachEvent('on' + event, function () {\n        // set the this pointer same as addEventListener when fn is called\n        return (fn.call(elem, window.event));\n      });\n    }\n  }\n\n  /*\n   * Parse Before\n   *\n   * Reads `:before` content and splits it at the comma\n   * From http://jsbin.com/ramiguzefiji/1/edit?html,css,js,output\n   */\n  function parseBefore(elem) {\n    return window.getComputedStyle(elem, ':before').getPropertyValue('content').slice(1, -1);\n  }\n\n  /*\n   * Merges two node lists together.\n   *\n   * From http://stackoverflow.com/questions/914783/javascript-nodelist/17262552#17262552\n   */\n  var mergeNodes = function(a, b) {\n    return [].slice.call(a).concat([].slice.call(b));\n  };\n\n  /*\n   * Query\n   *\n   * Reads nodes and finds the widths/points\n   *  nodes - optional, an array or NodeList of nodes to query\n   *  callback - Either boolean (`true`/`false`) to force a normal callback, or a function to use as a callback once query and nodeWrites have finished.\n   */\n  EQjs.prototype.query = function (nodes, callback) {\n    var proto = Object.getPrototypeOf(eqjs);\n    var length;\n\n    if (callback && typeof(callback) === 'function') {\n      proto.callback = callback;\n    }\n\n    if (nodes && typeof(nodes) !== 'number') {\n      length = nodes.length;\n    }\n    else {\n      nodes = proto.nodes;\n      length = proto.nodesLength;\n    }\n    var widths = [], points = [], i;\n\n    for (i = 0; i < length; i++) {\n      var rect = nodes[i].getBoundingClientRect();\n      var width = rect.width;\n      if (width === undefined) {\n          width = rect.right - rect.left;\n      }\n      widths.push(width);\n      try {\n        points.push(proto.sortObj(nodes[i].getAttribute('data-eq-pts')));\n      }\n      catch (e) {\n        try {\n          points.push(proto.sortObj(parseBefore(nodes[i])));\n        }\n        catch (e2) {\n          points.push([{\n            key: '',\n            value: 0\n          }]);\n        }\n      }\n    }\n\n    proto.widths = widths;\n    proto.points = points;\n\n    if (nodes && typeof(nodes) !== 'number') {\n      proto.nodeWrites(nodes, widths, points);\n    }\n    else if (callback && typeof(callback) !== 'function') {\n      proto.nodeWrites();\n    }\n    else {\n      window.requestAnimationFrame(proto.nodeWrites);\n    }\n  };\n\n  /*\n   * NodeWrites\n   *\n   * Writes the data attribute to the object\n   *  nodes - optional, an array or NodeList of nodes to query\n   *  widths - optional, widths of nodes to use. Only used if `nodes` is passed in\n   *  points - optional, points of nodes to use. Only used if `nodes` is passed in\n   */\n  EQjs.prototype.nodeWrites = function (nodes) {\n    var i,\n        j,\n        k,\n        length,\n        callback,\n        eqResizeEvent,\n        eqState,\n        proto = Object.getPrototypeOf(eqjs),\n        widths = proto.widths,\n        points = proto.points;\n\n    if (nodes && typeof(nodes) !== 'number') {\n      length = nodes.length;\n    }\n    else {\n      nodes = proto.nodes;\n      length = proto.nodesLength;\n    }\n\n    for (i = 0; i < length; i++) {\n      // Set object width to found width\n      var objWidth = widths[i];\n      var obj = nodes[i];\n      var eqPts = points[i];\n      var eqStates = [];\n\n      // Get keys for states\n      var eqPtsLength = eqPts.length;\n\n      // Be greedy for smallest state\n      if (objWidth < eqPts[0].value) {\n        eqState = null;\n      }\n      // Be greedy for largest state\n      else if (objWidth >= eqPts[eqPtsLength - 1].value) {\n        for (k = 0; k < eqPtsLength; k++) {\n          eqStates.push(eqPts[k].key);\n        }\n        eqState = eqStates.join(' ');\n      }\n      // Traverse the states if not found\n      else {\n        for (j = 0; j < eqPtsLength; j++) {\n          var current = eqPts[j];\n          var next = eqPts[j + 1];\n          eqStates.push(current.key);\n\n          if (j === 0 && objWidth < current.value) {\n            eqState = null;\n            break;\n          }\n          else if (next !== undefined && next.value === undefined) {\n            eqStates.push(next.key);\n            eqState = eqStates.join(' ');\n            break;\n          }\n          else if (objWidth >= current.value && objWidth < next.value) {\n            eqState = eqStates.join(' ');\n            break;\n          }\n        }\n      }\n\n      // Determine what to set the attribute to\n      if (eqState === null) {\n        obj.removeAttribute('data-eq-state');\n      }\n      else {\n        obj.setAttribute('data-eq-state', eqState);\n      }\n      // Set the details of `eqResize`\n      eqResizeEvent = new CustomEvent('eqResize', {'detail': eqState, 'bubbles': true});\n\n      // Fire resize event\n      obj.dispatchEvent(eqResizeEvent);\n    }\n\n    // Run Callback\n    if (proto.callback) {\n      callback = proto.callback;\n      proto.callback = undefined;\n      callback(nodes);\n    }\n  };\n\n  /*\n   * Refresh Nodes\n   * Refreshes the list of nodes for eqjs to work with\n   */\n  EQjs.prototype.refreshNodes = function () {\n    var proto = Object.getPrototypeOf(eqjs),\n        cssNodes = [];\n\n    proto.nodes = document.querySelectorAll('[data-eq-pts]');\n\n    cssNodes = parseBefore(document.querySelector('html')).split(', ');\n    cssNodes.forEach(function (v) {\n      if (v !== '') {\n        proto.nodes = mergeNodes(proto.nodes, document.querySelectorAll(v));\n      }\n    });\n\n\n    proto.nodesLength = proto.nodes.length;\n  };\n\n  /*\n   * Sort Object\n   * Sorts a simple object (key: value) by value and returns a sorted object\n   */\n  EQjs.prototype.sortObj = function (obj) {\n    var arr = [];\n\n    var objSplit = obj.split(',');\n\n    for (var i = 0; i < objSplit.length; i++) {\n      var sSplit = objSplit[i].split(':');\n      arr.push({\n        'key': sSplit[0].replace(/^\\s+|\\s+$/g, ''),\n        'value': parseFloat(sSplit[1])\n      });\n    }\n\n    return arr.sort(function (a, b) { return a.value - b.value; });\n  };\n\n  /**\n    * JavaScript constructor\n    * Adds `data-eq-pts` attribute as constructor for JavaScript\n    */\n  EQjs.prototype.definePts = function (node, points) {\n    points = points ? points : {};\n\n    points = JSON.stringify(points);\n    points = points.substring(1, points.length - 1);\n    points = points.replace(/:/g, ': ');\n    points = points.replace(/,/g, ', ');\n    points = points.replace(/\"/g, '');\n\n    node.setAttribute('data-eq-pts', points);\n\n    return points;\n  };\n\n  /**\n    * Query All Nodes\n    * Runs refreshNodes and Query\n  **/\n  EQjs.prototype.all = function (cb) {\n    var proto = Object.getPrototypeOf(eqjs);\n    var hasCB = cb ? true : false;\n\n    proto.refreshNodes();\n\n    if (!hasCB) {\n      window.requestAnimationFrame(proto.query);\n    }\n    else {\n      proto.query(undefined, cb);\n    }\n  }\n\n  /*\n   * We only ever want there to be\n   * one instance of EQjs in an app\n   */\n  eqjs = eqjs || new EQjs();\n\n  /*\n   * Document Loaded\n   *\n   * Fires on document load; for HTML based EQs\n   */\n  addEvent(window, 'DOMContentLoaded', function () {\n    eqjs.all(false);\n  });\n\n  /*\n   * Window Loaded\n   */\n  addEvent(window, 'load', function () {\n    eqjs.all(true);\n  });\n\n  /*\n   * Window Resize\n   *\n   * Loop over each `eq-pts` element and pass to eqState\n   */\n  addEvent(window, 'resize', function () {\n    eqjs.all(true);\n  });\n\n  // Expose 'eqjs'\n  if (typeof module !== 'undefined' && module.exports) {\n    module.exports = eqjs;\n  } else if (typeof define === 'function' && define.amd) {\n    define('eqjs', function () {\n      return eqjs;\n    });\n  } else {\n    window.eqjs = eqjs;\n  }\n})(window.eqjs);\n"],"sourceRoot":"/source/"}