packages/Angular.UI.UI-Router.0.2.15/content/scripts/angular-ui-router.js

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/**
 * State-based routing for AngularJS
 * @version v0.2.15
 * @link http://angular-ui.github.com/
 * @license MIT License, http://www.opensource.org/licenses/MIT
 */

/* commonjs package manager support (eg componentjs) */
if (typeof module !== "undefined" && typeof exports !== "undefined" && module.exports === exports){
  module.exports = 'ui.router';
}

(function (window, angular, undefined) {
/*jshint globalstrict:true*/
/*global angular:false*/
'use strict';

var isDefined = angular.isDefined,
    isFunction = angular.isFunction,
    isString = angular.isString,
    isObject = angular.isObject,
    isArray = angular.isArray,
    forEach = angular.forEach,
    extend = angular.extend,
    copy = angular.copy;

function inherit(parent, extra) {
  return extend(new (extend(function() {}, { prototype: parent }))(), extra);
}

function merge(dst) {
  forEach(arguments, function(obj) {
    if (obj !== dst) {
      forEach(obj, function(value, key) {
        if (!dst.hasOwnProperty(key)) dst[key] = value;
      });
    }
  });
  return dst;
}

/**
 * Finds the common ancestor path between two states.
 *
 * @param {Object} first The first state.
 * @param {Object} second The second state.
 * @return {Array} Returns an array of state names in descending order, not including the root.
 */
function ancestors(first, second) {
  var path = [];

  for (var n in first.path) {
    if (first.path[n] !== second.path[n]) break;
    path.push(first.path[n]);
  }
  return path;
}

/**
 * IE8-safe wrapper for `Object.keys()`.