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Current File : /var/www/html/kalemon/public/sprinkles/TG/Class-4/Math/assets/js/angularJS/angular-ui-router.js
/**
 * State-based routing for AngularJS
 * @version v0.2.10
 * @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()`.
 *
 * @param {Object} object A JavaScript object.
 * @return {Array} Returns the keys of the object as an array.
 */
function keys(object) {
  if (Object.keys) {
    return Object.keys(object);
  }
  var result = [];

  angular.forEach(object, function(val, key) {
    result.push(key);
  });
  return result;
}

/**
 * IE8-safe wrapper for `Array.prototype.indexOf()`.
 *
 * @param {Array} array A JavaScript array.
 * @param {*} value A value to search the array for.
 * @return {Number} Returns the array index value of `value`, or `-1` if not present.
 */
function arraySearch(array, value) {
  if (Array.prototype.indexOf) {
    return array.indexOf(value, Number(arguments[2]) || 0);
  }
  var len = array.length >>> 0, from = Number(arguments[2]) || 0;
  from = (from < 0) ? Math.ceil(from) : Math.floor(from);

  if (from < 0) from += len;

  for (; from < len; from++) {
    if (from in array && array[from] === value) return from;
  }
  return -1;
}

/**
 * Merges a set of parameters with all parameters inherited between the common parents of the
 * current state and a given destination state.
 *
 * @param {Object} currentParams The value of the current state parameters ($stateParams).
 * @param {Object} newParams The set of parameters which will be composited with inherited params.
 * @param {Object} $current Internal definition of object representing the current state.
 * @param {Object} $to Internal definition of object representing state to transition to.
 */
function inheritParams(currentParams, newParams, $current, $to) {
  var parents = ancestors($current, $to), parentParams, inherited = {}, inheritList = [];

  for (var i in parents) {
    if (!parents[i].params || !parents[i].params.length) continue;
    parentParams = parents[i].params;

    for (var j in parentParams) {
      if (arraySearch(inheritList, parentParams[j]) >= 0) continue;
      inheritList.push(parentParams[j]);
      inherited[parentParams[j]] = currentParams[parentParams[j]];
    }
  }
  return extend({}, inherited, newParams);
}

/**
 * Normalizes a set of values to string or `null`, filtering them by a list of keys.
 *
 * @param {Array} keys The list of keys to normalize/return.
 * @param {Object} values An object hash of values to normalize.
 * @return {Object} Returns an object hash of normalized string values.
 */
function normalize(keys, values) {
  var normalized = {};

  forEach(keys, function (name) {
    var value = values[name];
    normalized[name] = (value != null) ? String(value) : null;
  });
  return normalized;
}

/**
 * Performs a non-strict comparison of the subset of two objects, defined by a list of keys.
 *
 * @param {Object} a The first object.
 * @param {Object} b The second object.
 * @param {Array} keys The list of keys within each object to compare. If the list is empty or not specified,
 *                     it defaults to the list of keys in `a`.
 * @return {Boolean} Returns `true` if the keys match, otherwise `false`.
 */
function equalForKeys(a, b, keys) {
  if (!keys) {
    keys = [];
    for (var n in a) keys.push(n); // Used instead of Object.keys() for IE8 compatibility
  }

  for (var i=0; i<keys.length; i++) {
    var k = keys[i];
    if (a[k] != b[k]) return false; // Not '===', values aren't necessarily normalized
  }
  return true;
}

/**
 * Returns the subset of an object, based on a list of keys.
 *
 * @param {Array} keys
 * @param {Object} values
 * @return {Boolean} Returns a subset of `values`.
 */
function filterByKeys(keys, values) {
  var filtered = {};

  forEach(keys, function (name) {
    filtered[name] = values[name];
  });
  return filtered;
}
/**
 * @ngdoc overview
 * @name ui.router.util
 *
 * @description
 * # ui.router.util sub-module
 *
 * This module is a dependency of other sub-modules. Do not include this module as a dependency
 * in your angular app (use {@link ui.router} module instead).
 *
 */
angular.module('ui.router.util', ['ng']);

/**
 * @ngdoc overview
 * @name ui.router.router
 * 
 * @requires ui.router.util
 *
 * @description
 * # ui.router.router sub-module
 *
 * This module is a dependency of other sub-modules. Do not include this module as a dependency
 * in your angular app (use {@link ui.router} module instead).
 */
angular.module('ui.router.router', ['ui.router.util']);

/**
 * @ngdoc overview
 * @name ui.router.state
 * 
 * @requires ui.router.router
 * @requires ui.router.util
 *
 * @description
 * # ui.router.state sub-module
 *
 * This module is a dependency of the main ui.router module. Do not include this module as a dependency
 * in your angular app (use {@link ui.router} module instead).
 * 
 */
angular.module('ui.router.state', ['ui.router.router', 'ui.router.util']);

/**
 * @ngdoc overview
 * @name ui.router
 *
 * @requires ui.router.state
 *
 * @description
 * # ui.router
 * 
 * ## The main module for ui.router 
 * There are several sub-modules included with the ui.router module, however only this module is needed
 * as a dependency within your angular app. The other modules are for organization purposes. 
 *
 * The modules are:
 * * ui.router - the main "umbrella" module
 * * ui.router.router - 
 * 
 * *You'll need to include **only** this module as the dependency within your angular app.*
 * 
 * <pre>
 * <!doctype html>
 * <html ng-app="myApp">
 * <head>
 *   <script src="js/angular.js"></script>
 *   <!-- Include the ui-router script -->
 *   <script src="js/angular-ui-router.min.js"></script>
 *   <script>
 *     // ...and add 'ui.router' as a dependency
 *     var myApp = angular.module('myApp', ['ui.router']);
 *   </script>
 * </head>
 * <body>
 * </body>
 * </html>
 * </pre>
 */
angular.module('ui.router', ['ui.router.state']);

angular.module('ui.router.compat', ['ui.router']);

/**
 * @ngdoc object
 * @name ui.router.util.$resolve
 *
 * @requires $q
 * @requires $injector
 *
 * @description
 * Manages resolution of (acyclic) graphs of promises.
 */
$Resolve.$inject = ['$q', '$injector'];
function $Resolve(  $q,    $injector) {
  
  var VISIT_IN_PROGRESS = 1,
      VISIT_DONE = 2,
      NOTHING = {},
      NO_DEPENDENCIES = [],
      NO_LOCALS = NOTHING,
      NO_PARENT = extend($q.when(NOTHING), { $$promises: NOTHING, $$values: NOTHING });
  

  /**
   * @ngdoc function
   * @name ui.router.util.$resolve#study
   * @methodOf ui.router.util.$resolve
   *
   * @description
   * Studies a set of invocables that are likely to be used multiple times.
   * <pre>
   * $resolve.study(invocables)(locals, parent, self)
   * </pre>
   * is equivalent to
   * <pre>
   * $resolve.resolve(invocables, locals, parent, self)
   * </pre>
   * but the former is more efficient (in fact `resolve` just calls `study` 
   * internally).
   *
   * @param {object} invocables Invocable objects
   * @return {function} a function to pass in locals, parent and self
   */
  this.study = function (invocables) {
    if (!isObject(invocables)) throw new Error("'invocables' must be an object");
    
    // Perform a topological sort of invocables to build an ordered plan
    var plan = [], cycle = [], visited = {};
    function visit(value, key) {
      if (visited[key] === VISIT_DONE) return;
      
      cycle.push(key);
      if (visited[key] === VISIT_IN_PROGRESS) {
        cycle.splice(0, cycle.indexOf(key));
        throw new Error("Cyclic dependency: " + cycle.join(" -> "));
      }
      visited[key] = VISIT_IN_PROGRESS;
      
      if (isString(value)) {
        plan.push(key, [ function() { return $injector.get(value); }], NO_DEPENDENCIES);
      } else {
        var params = $injector.annotate(value);
        forEach(params, function (param) {
          if (param !== key && invocables.hasOwnProperty(param)) visit(invocables[param], param);
        });
        plan.push(key, value, params);
      }
      
      cycle.pop();
      visited[key] = VISIT_DONE;
    }
    forEach(invocables, visit);
    invocables = cycle = visited = null; // plan is all that's required
    
    function isResolve(value) {
      return isObject(value) && value.then && value.$$promises;
    }
    
    return function (locals, parent, self) {
      if (isResolve(locals) && self === undefined) {
        self = parent; parent = locals; locals = null;
      }
      if (!locals) locals = NO_LOCALS;
      else if (!isObject(locals)) {
        throw new Error("'locals' must be an object");
      }       
      if (!parent) parent = NO_PARENT;
      else if (!isResolve(parent)) {
        throw new Error("'parent' must be a promise returned by $resolve.resolve()");
      }
      
      // To complete the overall resolution, we have to wait for the parent
      // promise and for the promise for each invokable in our plan.
      var resolution = $q.defer(),
          result = resolution.promise,
          promises = result.$$promises = {},
          values = extend({}, locals),
          wait = 1 + plan.length/3,
          merged = false;
          
      function done() {
        // Merge parent values we haven't got yet and publish our own $$values
        if (!--wait) {
          if (!merged) merge(values, parent.$$values); 
          result.$$values = values;
          result.$$promises = true; // keep for isResolve()
          resolution.resolve(values);
        }
      }
      
      function fail(reason) {
        result.$$failure = reason;
        resolution.reject(reason);
      }
      
      // Short-circuit if parent has already failed
      if (isDefined(parent.$$failure)) {
        fail(parent.$$failure);
        return result;
      }
      
      // Merge parent values if the parent has already resolved, or merge
      // parent promises and wait if the parent resolve is still in progress.
      if (parent.$$values) {
        merged = merge(values, parent.$$values);
        done();
      } else {
        extend(promises, parent.$$promises);
        parent.then(done, fail);
      }
      
      // Process each invocable in the plan, but ignore any where a local of the same name exists.
      for (var i=0, ii=plan.length; i<ii; i+=3) {
        if (locals.hasOwnProperty(plan[i])) done();
        else invoke(plan[i], plan[i+1], plan[i+2]);
      }
      
      function invoke(key, invocable, params) {
        // Create a deferred for this invocation. Failures will propagate to the resolution as well.
        var invocation = $q.defer(), waitParams = 0;
        function onfailure(reason) {
          invocation.reject(reason);
          fail(reason);
        }
        // Wait for any parameter that we have a promise for (either from parent or from this
        // resolve; in that case study() will have made sure it's ordered before us in the plan).
        forEach(params, function (dep) {
          if (promises.hasOwnProperty(dep) && !locals.hasOwnProperty(dep)) {
            waitParams++;
            promises[dep].then(function (result) {
              values[dep] = result;
              if (!(--waitParams)) proceed();
            }, onfailure);
          }
        });
        if (!waitParams) proceed();
        function proceed() {
          if (isDefined(result.$$failure)) return;
          try {
            invocation.resolve($injector.invoke(invocable, self, values));
            invocation.promise.then(function (result) {
              values[key] = result;
              done();
            }, onfailure);
          } catch (e) {
            onfailure(e);
          }
        }
        // Publish promise synchronously; invocations further down in the plan may depend on it.
        promises[key] = invocation.promise;
      }
      
      return result;
    };
  };
  
  /**
   * @ngdoc function
   * @name ui.router.util.$resolve#resolve
   * @methodOf ui.router.util.$resolve
   *
   * @description
   * Resolves a set of invocables. An invocable is a function to be invoked via 
   * `$injector.invoke()`, and can have an arbitrary number of dependencies. 
   * An invocable can either return a value directly,
   * or a `$q` promise. If a promise is returned it will be resolved and the 
   * resulting value will be used instead. Dependencies of invocables are resolved 
   * (in this order of precedence)
   *
   * - from the specified `locals`
   * - from another invocable that is part of this `$resolve` call
   * - from an invocable that is inherited from a `parent` call to `$resolve` 
   *   (or recursively
   * - from any ancestor `$resolve` of that parent).
   *
   * The return value of `$resolve` is a promise for an object that contains 
   * (in this order of precedence)
   *
   * - any `locals` (if specified)
   * - the resolved return values of all injectables
   * - any values inherited from a `parent` call to `$resolve` (if specified)
   *
   * The promise will resolve after the `parent` promise (if any) and all promises 
   * returned by injectables have been resolved. If any invocable 
   * (or `$injector.invoke`) throws an exception, or if a promise returned by an 
   * invocable is rejected, the `$resolve` promise is immediately rejected with the 
   * same error. A rejection of a `parent` promise (if specified) will likewise be 
   * propagated immediately. Once the `$resolve` promise has been rejected, no 
   * further invocables will be called.
   * 
   * Cyclic dependencies between invocables are not permitted and will caues `$resolve`
   * to throw an error. As a special case, an injectable can depend on a parameter 
   * with the same name as the injectable, which will be fulfilled from the `parent` 
   * injectable of the same name. This allows inherited values to be decorated. 
   * Note that in this case any other injectable in the same `$resolve` with the same
   * dependency would see the decorated value, not the inherited value.
   *
   * Note that missing dependencies -- unlike cyclic dependencies -- will cause an 
   * (asynchronous) rejection of the `$resolve` promise rather than a (synchronous) 
   * exception.
   *
   * Invocables are invoked eagerly as soon as all dependencies are available. 
   * This is true even for dependencies inherited from a `parent` call to `$resolve`.
   *
   * As a special case, an invocable can be a string, in which case it is taken to 
   * be a service name to be passed to `$injector.get()`. This is supported primarily 
   * for backwards-compatibility with the `resolve` property of `$routeProvider` 
   * routes.
   *
   * @param {object} invocables functions to invoke or 
   * `$injector` services to fetch.
   * @param {object} locals  values to make available to the injectables
   * @param {object} parent  a promise returned by another call to `$resolve`.
   * @param {object} self  the `this` for the invoked methods
   * @return {object} Promise for an object that contains the resolved return value
   * of all invocables, as well as any inherited and local values.
   */
  this.resolve = function (invocables, locals, parent, self) {
    return this.study(invocables)(locals, parent, self);
  };
}

angular.module('ui.router.util').service('$resolve', $Resolve);


/**
 * @ngdoc object
 * @name ui.router.util.$templateFactory
 *
 * @requires $http
 * @requires $templateCache
 * @requires $injector
 *
 * @description
 * Service. Manages loading of templates.
 */
$TemplateFactory.$inject = ['$http', '$templateCache', '$injector'];
function $TemplateFactory(  $http,   $templateCache,   $injector) {

  /**
   * @ngdoc function
   * @name ui.router.util.$templateFactory#fromConfig
   * @methodOf ui.router.util.$templateFactory
   *
   * @description
   * Creates a template from a configuration object. 
   *
   * @param {object} config Configuration object for which to load a template. 
   * The following properties are search in the specified order, and the first one 
   * that is defined is used to create the template:
   *
   * @param {string|object} config.template html string template or function to 
   * load via {@link ui.router.util.$templateFactory#fromString fromString}.
   * @param {string|object} config.templateUrl url to load or a function returning 
   * the url to load via {@link ui.router.util.$templateFactory#fromUrl fromUrl}.
   * @param {Function} config.templateProvider function to invoke via 
   * {@link ui.router.util.$templateFactory#fromProvider fromProvider}.
   * @param {object} params  Parameters to pass to the template function.
   * @param {object} locals Locals to pass to `invoke` if the template is loaded 
   * via a `templateProvider`. Defaults to `{ params: params }`.
   *
   * @return {string|object}  The template html as a string, or a promise for 
   * that string,or `null` if no template is configured.
   */
  this.fromConfig = function (config, params, locals) {
    return (
      isDefined(config.template) ? this.fromString(config.template, params) :
      isDefined(config.templateUrl) ? this.fromUrl(config.templateUrl, params) :
      isDefined(config.templateProvider) ? this.fromProvider(config.templateProvider, params, locals) :
      null
    );
  };

  /**
   * @ngdoc function
   * @name ui.router.util.$templateFactory#fromString
   * @methodOf ui.router.util.$templateFactory
   *
   * @description
   * Creates a template from a string or a function returning a string.
   *
   * @param {string|object} template html template as a string or function that 
   * returns an html template as a string.
   * @param {object} params Parameters to pass to the template function.
   *
   * @return {string|object} The template html as a string, or a promise for that 
   * string.
   */
  this.fromString = function (template, params) {
    return isFunction(template) ? template(params) : template;
  };

  /**
   * @ngdoc function
   * @name ui.router.util.$templateFactory#fromUrl
   * @methodOf ui.router.util.$templateFactory
   * 
   * @description
   * Loads a template from the a URL via `$http` and `$templateCache`.
   *
   * @param {string|Function} url url of the template to load, or a function 
   * that returns a url.
   * @param {Object} params Parameters to pass to the url function.
   * @return {string|Promise.<string>} The template html as a string, or a promise 
   * for that string.
   */
  this.fromUrl = function (url, params) {
    if (isFunction(url)) url = url(params);
    if (url == null) return null;
    else return $http
        .get(url, { cache: $templateCache })
        .then(function(response) { return response.data; });
  };

  /**
   * @ngdoc function
   * @name ui.router.util.$templateFactory#fromUrl
   * @methodOf ui.router.util.$templateFactory
   *
   * @description
   * Creates a template by invoking an injectable provider function.
   *
   * @param {Function} provider Function to invoke via `$injector.invoke`
   * @param {Object} params Parameters for the template.
   * @param {Object} locals Locals to pass to `invoke`. Defaults to 
   * `{ params: params }`.
   * @return {string|Promise.<string>} The template html as a string, or a promise 
   * for that string.
   */
  this.fromProvider = function (provider, params, locals) {
    return $injector.invoke(provider, null, locals || { params: params });
  };
}

angular.module('ui.router.util').service('$templateFactory', $TemplateFactory);

/**
 * @ngdoc object
 * @name ui.router.util.type:UrlMatcher
 *
 * @description
 * Matches URLs against patterns and extracts named parameters from the path or the search
 * part of the URL. A URL pattern consists of a path pattern, optionally followed by '?' and a list
 * of search parameters. Multiple search parameter names are separated by '&'. Search parameters
 * do not influence whether or not a URL is matched, but their values are passed through into
 * the matched parameters returned by {@link ui.router.util.type:UrlMatcher#methods_exec exec}.
 * 
 * Path parameter placeholders can be specified using simple colon/catch-all syntax or curly brace
 * syntax, which optionally allows a regular expression for the parameter to be specified:
 *
 * * `':'` name - colon placeholder
 * * `'*'` name - catch-all placeholder
 * * `'{' name '}'` - curly placeholder
 * * `'{' name ':' regexp '}'` - curly placeholder with regexp. Should the regexp itself contain
 *   curly braces, they must be in matched pairs or escaped with a backslash.
 *
 * Parameter names may contain only word characters (latin letters, digits, and underscore) and
 * must be unique within the pattern (across both path and search parameters). For colon 
 * placeholders or curly placeholders without an explicit regexp, a path parameter matches any
 * number of characters other than '/'. For catch-all placeholders the path parameter matches
 * any number of characters.
 * 
 * Examples:
 * 
 * * `'/hello/'` - Matches only if the path is exactly '/hello/'. There is no special treatment for
 *   trailing slashes, and patterns have to match the entire path, not just a prefix.
 * * `'/user/:id'` - Matches '/user/bob' or '/user/1234!!!' or even '/user/' but not '/user' or
 *   '/user/bob/details'. The second path segment will be captured as the parameter 'id'.
 * * `'/user/{id}'` - Same as the previous example, but using curly brace syntax.
 * * `'/user/{id:[^/]*}'` - Same as the previous example.
 * * `'/user/{id:[0-9a-fA-F]{1,8}}'` - Similar to the previous example, but only matches if the id
 *   parameter consists of 1 to 8 hex digits.
 * * `'/files/{path:.*}'` - Matches any URL starting with '/files/' and captures the rest of the
 *   path into the parameter 'path'.
 * * `'/files/*path'` - ditto.
 *
 * @param {string} pattern  the pattern to compile into a matcher.
 *
 * @property {string} prefix  A static prefix of this pattern. The matcher guarantees that any
 *   URL matching this matcher (i.e. any string for which {@link ui.router.util.type:UrlMatcher#methods_exec exec()} returns
 *   non-null) will start with this prefix.
 *
 * @property {string} source  The pattern that was passed into the contructor
 *
 * @property {string} sourcePath  The path portion of the source property
 *
 * @property {string} sourceSearch  The search portion of the source property
 *
 * @property {string} regex  The constructed regex that will be used to match against the url when 
 *   it is time to determine which url will match.
 *
 * @returns {Object}  New UrlMatcher object
 */
function UrlMatcher(pattern) {

  // Find all placeholders and create a compiled pattern, using either classic or curly syntax:
  //   '*' name
  //   ':' name
  //   '{' name '}'
  //   '{' name ':' regexp '}'
  // The regular expression is somewhat complicated due to the need to allow curly braces
  // inside the regular expression. The placeholder regexp breaks down as follows:
  //    ([:*])(\w+)               classic placeholder ($1 / $2)
  //    \{(\w+)(?:\:( ... ))?\}   curly brace placeholder ($3) with optional regexp ... ($4)
  //    (?: ... | ... | ... )+    the regexp consists of any number of atoms, an atom being either
  //    [^{}\\]+                  - anything other than curly braces or backslash
  //    \\.                       - a backslash escape
  //    \{(?:[^{}\\]+|\\.)*\}     - a matched set of curly braces containing other atoms
  var placeholder = /([:*])(\w+)|\{(\w+)(?:\:((?:[^{}\\]+|\\.|\{(?:[^{}\\]+|\\.)*\})+))?\}/g,
      names = {}, compiled = '^', last = 0, m,
      segments = this.segments = [],
      params = this.params = [];

  function addParameter(id) {
    if (!/^\w+(-+\w+)*$/.test(id)) throw new Error("Invalid parameter name '" + id + "' in pattern '" + pattern + "'");
    if (names[id]) throw new Error("Duplicate parameter name '" + id + "' in pattern '" + pattern + "'");
    names[id] = true;
    params.push(id);
  }

  function quoteRegExp(string) {
    return string.replace(/[\\\[\]\^$*+?.()|{}]/g, "\\$&");
  }

  this.source = pattern;

  // Split into static segments separated by path parameter placeholders.
  // The number of segments is always 1 more than the number of parameters.
  var id, regexp, segment;
  while ((m = placeholder.exec(pattern))) {
    id = m[2] || m[3]; // IE[78] returns '' for unmatched groups instead of null
    regexp = m[4] || (m[1] == '*' ? '.*' : '[^/]*');
    segment = pattern.substring(last, m.index);
    if (segment.indexOf('?') >= 0) break; // we're into the search part
    compiled += quoteRegExp(segment) + '(' + regexp + ')';
    addParameter(id);
    segments.push(segment);
    last = placeholder.lastIndex;
  }
  segment = pattern.substring(last);

  // Find any search parameter names and remove them from the last segment
  var i = segment.indexOf('?');
  if (i >= 0) {
    var search = this.sourceSearch = segment.substring(i);
    segment = segment.substring(0, i);
    this.sourcePath = pattern.substring(0, last+i);

    // Allow parameters to be separated by '?' as well as '&' to make concat() easier
    forEach(search.substring(1).split(/[&?]/), addParameter);
  } else {
    this.sourcePath = pattern;
    this.sourceSearch = '';
  }

  compiled += quoteRegExp(segment) + '$';
  segments.push(segment);
  this.regexp = new RegExp(compiled);
  this.prefix = segments[0];
}

/**
 * @ngdoc function
 * @name ui.router.util.type:UrlMatcher#concat
 * @methodOf ui.router.util.type:UrlMatcher
 *
 * @description
 * Returns a new matcher for a pattern constructed by appending the path part and adding the
 * search parameters of the specified pattern to this pattern. The current pattern is not
 * modified. This can be understood as creating a pattern for URLs that are relative to (or
 * suffixes of) the current pattern.
 *
 * @example
 * The following two matchers are equivalent:
 * ```
 * new UrlMatcher('/user/{id}?q').concat('/details?date');
 * new UrlMatcher('/user/{id}/details?q&date');
 * ```
 *
 * @param {string} pattern  The pattern to append.
 * @returns {ui.router.util.type:UrlMatcher}  A matcher for the concatenated pattern.
 */
UrlMatcher.prototype.concat = function (pattern) {
  // Because order of search parameters is irrelevant, we can add our own search
  // parameters to the end of the new pattern. Parse the new pattern by itself
  // and then join the bits together, but it's much easier to do this on a string level.
  return new UrlMatcher(this.sourcePath + pattern + this.sourceSearch);
};

UrlMatcher.prototype.toString = function () {
  return this.source;
};

/**
 * @ngdoc function
 * @name ui.router.util.type:UrlMatcher#exec
 * @methodOf ui.router.util.type:UrlMatcher
 *
 * @description
 * Tests the specified path against this matcher, and returns an object containing the captured
 * parameter values, or null if the path does not match. The returned object contains the values
 * of any search parameters that are mentioned in the pattern, but their value may be null if
 * they are not present in `searchParams`. This means that search parameters are always treated
 * as optional.
 *
 * @example
 * ```
 * new UrlMatcher('/user/{id}?q&r').exec('/user/bob', { x:'1', q:'hello' });
 * // returns { id:'bob', q:'hello', r:null }
 * ```
 *
 * @param {string} path  The URL path to match, e.g. `$location.path()`.
 * @param {Object} searchParams  URL search parameters, e.g. `$location.search()`.
 * @returns {Object}  The captured parameter values.
 */
UrlMatcher.prototype.exec = function (path, searchParams) {
  var m = this.regexp.exec(path);
  if (!m) return null;

  var params = this.params, nTotal = params.length,
    nPath = this.segments.length-1,
    values = {}, i;

  if (nPath !== m.length - 1) throw new Error("Unbalanced capture group in route '" + this.source + "'");

  for (i=0; i<nPath; i++) values[params[i]] = m[i+1];
  for (/**/; i<nTotal; i++) values[params[i]] = searchParams[params[i]];

  return values;
};

/**
 * @ngdoc function
 * @name ui.router.util.type:UrlMatcher#parameters
 * @methodOf ui.router.util.type:UrlMatcher
 *
 * @description
 * Returns the names of all path and search parameters of this pattern in an unspecified order.
 * 
 * @returns {Array.<string>}  An array of parameter names. Must be treated as read-only. If the
 *    pattern has no parameters, an empty array is returned.
 */
UrlMatcher.prototype.parameters = function () {
  return this.params;
};

/**
 * @ngdoc function
 * @name ui.router.util.type:UrlMatcher#format
 * @methodOf ui.router.util.type:UrlMatcher
 *
 * @description
 * Creates a URL that matches this pattern by substituting the specified values
 * for the path and search parameters. Null values for path parameters are
 * treated as empty strings.
 *
 * @example
 * ```
 * new UrlMatcher('/user/{id}?q').format({ id:'bob', q:'yes' });
 * // returns '/user/bob?q=yes'
 * ```
 *
 * @param {Object} values  the values to substitute for the parameters in this pattern.
 * @returns {string}  the formatted URL (path and optionally search part).
 */
UrlMatcher.prototype.format = function (values) {
  var segments = this.segments, params = this.params;
  if (!values) return segments.join('');

  var nPath = segments.length-1, nTotal = params.length,
    result = segments[0], i, search, value;

  for (i=0; i<nPath; i++) {
    value = values[params[i]];
    // TODO: Maybe we should throw on null here? It's not really good style to use '' and null interchangeabley
    if (value != null) result += encodeURIComponent(value);
    result += segments[i+1];
  }
  for (/**/; i<nTotal; i++) {
    value = values[params[i]];
    if (value != null) {
      result += (search ? '&' : '?') + params[i] + '=' + encodeURIComponent(value);
      search = true;
    }
  }

  return result;
};



/**
 * @ngdoc object
 * @name ui.router.util.$urlMatcherFactory
 *
 * @description
 * Factory for {@link ui.router.util.type:UrlMatcher} instances. The factory is also available to providers
 * under the name `$urlMatcherFactoryProvider`.
 */
function $UrlMatcherFactory() {

  /**
   * @ngdoc function
   * @name ui.router.util.$urlMatcherFactory#compile
   * @methodOf ui.router.util.$urlMatcherFactory
   *
   * @description
   * Creates a {@link ui.router.util.type:UrlMatcher} for the specified pattern.
   *   
   * @param {string} pattern  The URL pattern.
   * @returns {ui.router.util.type:UrlMatcher}  The UrlMatcher.
   */
  this.compile = function (pattern) {
    return new UrlMatcher(pattern);
  };

  /**
   * @ngdoc function
   * @name ui.router.util.$urlMatcherFactory#isMatcher
   * @methodOf ui.router.util.$urlMatcherFactory
   *
   * @description
   * Returns true if the specified object is a UrlMatcher, or false otherwise.
   *
   * @param {Object} object  The object to perform the type check against.
   * @returns {Boolean}  Returns `true` if the object has the following functions: `exec`, `format`, and `concat`.
   */
  this.isMatcher = function (o) {
    return isObject(o) && isFunction(o.exec) && isFunction(o.format) && isFunction(o.concat);
  };
  
  /* No need to document $get, since it returns this */
  this.$get = function () {
    return this;
  };
}

// Register as a provider so it's available to other providers
angular.module('ui.router.util').provider('$urlMatcherFactory', $UrlMatcherFactory);

/**
 * @ngdoc object
 * @name ui.router.router.$urlRouterProvider
 *
 * @requires ui.router.util.$urlMatcherFactoryProvider
 *
 * @description
 * `$urlRouterProvider` has the responsibility of watching `$location`. 
 * When `$location` changes it runs through a list of rules one by one until a 
 * match is found. `$urlRouterProvider` is used behind the scenes anytime you specify 
 * a url in a state configuration. All urls are compiled into a UrlMatcher object.
 *
 * There are several methods on `$urlRouterProvider` that make it useful to use directly
 * in your module config.
 */
$UrlRouterProvider.$inject = ['$urlMatcherFactoryProvider'];
function $UrlRouterProvider(  $urlMatcherFactory) {
  var rules = [], 
      otherwise = null;

  // Returns a string that is a prefix of all strings matching the RegExp
  function regExpPrefix(re) {
    var prefix = /^\^((?:\\[^a-zA-Z0-9]|[^\\\[\]\^$*+?.()|{}]+)*)/.exec(re.source);
    return (prefix != null) ? prefix[1].replace(/\\(.)/g, "$1") : '';
  }

  // Interpolates matched values into a String.replace()-style pattern
  function interpolate(pattern, match) {
    return pattern.replace(/\$(\$|\d{1,2})/, function (m, what) {
      return match[what === '$' ? 0 : Number(what)];
    });
  }

  /**
   * @ngdoc function
   * @name ui.router.router.$urlRouterProvider#rule
   * @methodOf ui.router.router.$urlRouterProvider
   *
   * @description
   * Defines rules that are used by `$urlRouterProvider to find matches for
   * specific URLs.
   *
   * @example
   * <pre>
   * var app = angular.module('app', ['ui.router.router']);
   *
   * app.config(function ($urlRouterProvider) {
   *   // Here's an example of how you might allow case insensitive urls
   *   $urlRouterProvider.rule(function ($injector, $location) {
   *     var path = $location.path(),
   *         normalized = path.toLowerCase();
   *
   *     if (path !== normalized) {
   *       return normalized;
   *     }
   *   });
   * });
   * </pre>
   *
   * @param {object} rule Handler function that takes `$injector` and `$location`
   * services as arguments. You can use them to return a valid path as a string.
   *
   * @return {object} $urlRouterProvider - $urlRouterProvider instance
   */
  this.rule =
    function (rule) {
      if (!isFunction(rule)) throw new Error("'rule' must be a function");
      rules.push(rule);
      return this;
    };

  /**
   * @ngdoc object
   * @name ui.router.router.$urlRouterProvider#otherwise
   * @methodOf ui.router.router.$urlRouterProvider
   *
   * @description
   * Defines a path that is used when an invalied route is requested.
   *
   * @example
   * <pre>
   * var app = angular.module('app', ['ui.router.router']);
   *
   * app.config(function ($urlRouterProvider) {
   *   // if the path doesn't match any of the urls you configured
   *   // otherwise will take care of routing the user to the
   *   // specified url
   *   $urlRouterProvider.otherwise('/index');
   *
   *   // Example of using function rule as param
   *   $urlRouterProvider.otherwise(function ($injector, $location) {
   *     ...
   *   });
   * });
   * </pre>
   *
   * @param {string|object} rule The url path you want to redirect to or a function 
   * rule that returns the url path. The function version is passed two params: 
   * `$injector` and `$location` services.
   *
   * @return {object} $urlRouterProvider - $urlRouterProvider instance
   */
  this.otherwise =
    function (rule) {
      if (isString(rule)) {
        var redirect = rule;
        rule = function () { return redirect; };
      }
      else if (!isFunction(rule)) throw new Error("'rule' must be a function");
      otherwise = rule;
      return this;
    };


  function handleIfMatch($injector, handler, match) {
    if (!match) return false;
    var result = $injector.invoke(handler, handler, { $match: match });
    return isDefined(result) ? result : true;
  }

  /**
   * @ngdoc function
   * @name ui.router.router.$urlRouterProvider#when
   * @methodOf ui.router.router.$urlRouterProvider
   *
   * @description
   * Registers a handler for a given url matching. if handle is a string, it is
   * treated as a redirect, and is interpolated according to the syyntax of match
   * (i.e. like String.replace() for RegExp, or like a UrlMatcher pattern otherwise).
   *
   * If the handler is a function, it is injectable. It gets invoked if `$location`
   * matches. You have the option of inject the match object as `$match`.
   *
   * The handler can return
   *
   * - **falsy** to indicate that the rule didn't match after all, then `$urlRouter`
   *   will continue trying to find another one that matches.
   * - **string** which is treated as a redirect and passed to `$location.url()`
   * - **void** or any **truthy** value tells `$urlRouter` that the url was handled.
   *
   * @example
   * <pre>
   * var app = angular.module('app', ['ui.router.router']);
   *
   * app.config(function ($urlRouterProvider) {
   *   $urlRouterProvider.when($state.url, function ($match, $stateParams) {
   *     if ($state.$current.navigable !== state ||
   *         !equalForKeys($match, $stateParams) {
   *      $state.transitionTo(state, $match, false);
   *     }
   *   });
   * });
   * </pre>
   *
   * @param {string|object} what The incoming path that you want to redirect.
   * @param {string|object} handler The path you want to redirect your user to.
   */
  this.when =
    function (what, handler) {
      var redirect, handlerIsString = isString(handler);
      if (isString(what)) what = $urlMatcherFactory.compile(what);

      if (!handlerIsString && !isFunction(handler) && !isArray(handler))
        throw new Error("invalid 'handler' in when()");

      var strategies = {
        matcher: function (what, handler) {
          if (handlerIsString) {
            redirect = $urlMatcherFactory.compile(handler);
            handler = ['$match', function ($match) { return redirect.format($match); }];
          }
          return extend(function ($injector, $location) {
            return handleIfMatch($injector, handler, what.exec($location.path(), $location.search()));
          }, {
            prefix: isString(what.prefix) ? what.prefix : ''
          });
        },
        regex: function (what, handler) {
          if (what.global || what.sticky) throw new Error("when() RegExp must not be global or sticky");

          if (handlerIsString) {
            redirect = handler;
            handler = ['$match', function ($match) { return interpolate(redirect, $match); }];
          }
          return extend(function ($injector, $location) {
            return handleIfMatch($injector, handler, what.exec($location.path()));
          }, {
            prefix: regExpPrefix(what)
          });
        }
      };

      var check = { matcher: $urlMatcherFactory.isMatcher(what), regex: what instanceof RegExp };

      for (var n in check) {
        if (check[n]) {
          return this.rule(strategies[n](what, handler));
        }
      }

      throw new Error("invalid 'what' in when()");
    };

  /**
   * @ngdoc object
   * @name ui.router.router.$urlRouter
   *
   * @requires $location
   * @requires $rootScope
   * @requires $injector
   *
   * @description
   *
   */
  this.$get =
    [        '$location', '$rootScope', '$injector',
    function ($location,   $rootScope,   $injector) {
      // TODO: Optimize groups of rules with non-empty prefix into some sort of decision tree
      function update(evt) {
        if (evt && evt.defaultPrevented) return;
        function check(rule) {
          var handled = rule($injector, $location);
          if (handled) {
            if (isString(handled)) $location.replace().url(handled);
            return true;
          }
          return false;
        }
        var n=rules.length, i;
        for (i=0; i<n; i++) {
          if (check(rules[i])) return;
        }
        // always check otherwise last to allow dynamic updates to the set of rules
        if (otherwise) check(otherwise);
      }

      $rootScope.$on('$locationChangeSuccess', update);

      return {
        /**
         * @ngdoc function
         * @name ui.router.router.$urlRouter#sync
         * @methodOf ui.router.router.$urlRouter
         *
         * @description
         * Triggers an update; the same update that happens when the address bar url changes, aka `$locationChangeSuccess`.
         * This method is useful when you need to use `preventDefault()` on the `$locationChangeSuccess` event, 
         * perform some custom logic (route protection, auth, config, redirection, etc) and then finally proceed 
         * with the transition by calling `$urlRouter.sync()`.
         *
         * @example
         * <pre>
         * angular.module('app', ['ui.router']);
         *   .run(function($rootScope, $urlRouter) {
         *     $rootScope.$on('$locationChangeSuccess', function(evt) {
         *       // Halt state change from even starting
         *       evt.preventDefault();
         *       // Perform custom logic
         *       var meetsRequirement = ...
         *       // Continue with the update and state transition if logic allows
         *       if (meetsRequirement) $urlRouter.sync();
         *     });
         * });
         * </pre>
         */
        sync: function () {
          update();
        }
      };
    }];
}

angular.module('ui.router.router').provider('$urlRouter', $UrlRouterProvider);

/**
 * @ngdoc object
 * @name ui.router.state.$stateProvider
 *
 * @requires ui.router.router.$urlRouterProvider
 * @requires ui.router.util.$urlMatcherFactoryProvider
 * @requires $locationProvider
 *
 * @description
 * The new `$stateProvider` works similar to Angular's v1 router, but it focuses purely
 * on state.
 *
 * A state corresponds to a "place" in the application in terms of the overall UI and
 * navigation. A state describes (via the controller / template / view properties) what
 * the UI looks like and does at that place.
 *
 * States often have things in common, and the primary way of factoring out these
 * commonalities in this model is via the state hierarchy, i.e. parent/child states aka
 * nested states.
 *
 * The `$stateProvider` provides interfaces to declare these states for your app.
 */
$StateProvider.$inject = ['$urlRouterProvider', '$urlMatcherFactoryProvider', '$locationProvider'];
function $StateProvider(   $urlRouterProvider,   $urlMatcherFactory,           $locationProvider) {

  var root, states = {}, $state, queue = {}, abstractKey = 'abstract';

  // Builds state properties from definition passed to registerState()
  var stateBuilder = {

    // Derive parent state from a hierarchical name only if 'parent' is not explicitly defined.
    // state.children = [];
    // if (parent) parent.children.push(state);
    parent: function(state) {
      if (isDefined(state.parent) && state.parent) return findState(state.parent);
      // regex matches any valid composite state name
      // would match "contact.list" but not "contacts"
      var compositeName = /^(.+)\.[^.]+$/.exec(state.name);
      return compositeName ? findState(compositeName[1]) : root;
    },

    // inherit 'data' from parent and override by own values (if any)
    data: function(state) {
      if (state.parent && state.parent.data) {
        state.data = state.self.data = extend({}, state.parent.data, state.data);
      }
      return state.data;
    },

    // Build a URLMatcher if necessary, either via a relative or absolute URL
    url: function(state) {
      var url = state.url;

      if (isString(url)) {
        if (url.charAt(0) == '^') {
          return $urlMatcherFactory.compile(url.substring(1));
        }
        return (state.parent.navigable || root).url.concat(url);
      }

      if ($urlMatcherFactory.isMatcher(url) || url == null) {
        return url;
      }
      throw new Error("Invalid url '" + url + "' in state '" + state + "'");
    },

    // Keep track of the closest ancestor state that has a URL (i.e. is navigable)
    navigable: function(state) {
      return state.url ? state : (state.parent ? state.parent.navigable : null);
    },

    // Derive parameters for this state and ensure they're a super-set of parent's parameters
    params: function(state) {
      if (!state.params) {
        return state.url ? state.url.parameters() : state.parent.params;
      }
      if (!isArray(state.params)) throw new Error("Invalid params in state '" + state + "'");
      if (state.url) throw new Error("Both params and url specicified in state '" + state + "'");
      return state.params;
    },

    // If there is no explicit multi-view configuration, make one up so we don't have
    // to handle both cases in the view directive later. Note that having an explicit
    // 'views' property will mean the default unnamed view properties are ignored. This
    // is also a good time to resolve view names to absolute names, so everything is a
    // straight lookup at link time.
    views: function(state) {
      var views = {};

      forEach(isDefined(state.views) ? state.views : { '': state }, function (view, name) {
        if (name.indexOf('@') < 0) name += '@' + state.parent.name;
        views[name] = view;
      });
      return views;
    },

    ownParams: function(state) {
      if (!state.parent) {
        return state.params;
      }
      var paramNames = {}; forEach(state.params, function (p) { paramNames[p] = true; });

      forEach(state.parent.params, function (p) {
        if (!paramNames[p]) {
          throw new Error("Missing required parameter '" + p + "' in state '" + state.name + "'");
        }
        paramNames[p] = false;
      });
      var ownParams = [];

      forEach(paramNames, function (own, p) {
        if (own) ownParams.push(p);
      });
      return ownParams;
    },

    // Keep a full path from the root down to this state as this is needed for state activation.
    path: function(state) {
      return state.parent ? state.parent.path.concat(state) : []; // exclude root from path
    },

    // Speed up $state.contains() as it's used a lot
    includes: function(state) {
      var includes = state.parent ? extend({}, state.parent.includes) : {};
      includes[state.name] = true;
      return includes;
    },

    $delegates: {}
  };

  function isRelative(stateName) {
    return stateName.indexOf(".") === 0 || stateName.indexOf("^") === 0;
  }

  function findState(stateOrName, base) {
    var isStr = isString(stateOrName),
        name  = isStr ? stateOrName : stateOrName.name,
        path  = isRelative(name);

    if (path) {
      if (!base) throw new Error("No reference point given for path '"  + name + "'");
      var rel = name.split("."), i = 0, pathLength = rel.length, current = base;

      for (; i < pathLength; i++) {
        if (rel[i] === "" && i === 0) {
          current = base;
          continue;
        }
        if (rel[i] === "^") {
          if (!current.parent) throw new Error("Path '" + name + "' not valid for state '" + base.name + "'");
          current = current.parent;
          continue;
        }
        break;
      }
      rel = rel.slice(i).join(".");
      name = current.name + (current.name && rel ? "." : "") + rel;
    }
    var state = states[name];

    if (state && (isStr || (!isStr && (state === stateOrName || state.self === stateOrName)))) {
      return state;
    }
    return undefined;
  }

  function queueState(parentName, state) {
    if (!queue[parentName]) {
      queue[parentName] = [];
    }
    queue[parentName].push(state);
  }

  function registerState(state) {
    // Wrap a new object around the state so we can store our private details easily.
    state = inherit(state, {
      self: state,
      resolve: state.resolve || {},
      toString: function() { return this.name; }
    });

    var name = state.name;
    if (!isString(name) || name.indexOf('@') >= 0) throw new Error("State must have a valid name");
    if (states.hasOwnProperty(name)) throw new Error("State '" + name + "'' is already defined");

    // Get parent name
    var parentName = (name.indexOf('.') !== -1) ? name.substring(0, name.lastIndexOf('.'))
        : (isString(state.parent)) ? state.parent
        : '';

    // If parent is not registered yet, add state to queue and register later
    if (parentName && !states[parentName]) {
      return queueState(parentName, state.self);
    }

    for (var key in stateBuilder) {
      if (isFunction(stateBuilder[key])) state[key] = stateBuilder[key](state, stateBuilder.$delegates[key]);
    }
    states[name] = state;

    // Register the state in the global state list and with $urlRouter if necessary.
    if (!state[abstractKey] && state.url) {
      $urlRouterProvider.when(state.url, ['$match', '$stateParams', function ($match, $stateParams) {
        if ($state.$current.navigable != state || !equalForKeys($match, $stateParams)) {
          $state.transitionTo(state, $match, { location: false });
        }
      }]);
    }

    // Register any queued children
    if (queue[name]) {
      for (var i = 0; i < queue[name].length; i++) {
        registerState(queue[name][i]);
      }
    }

    return state;
  }

  // Checks text to see if it looks like a glob.
  function isGlob (text) {
    return text.indexOf('*') > -1;
  }

  // Returns true if glob matches current $state name.
  function doesStateMatchGlob (glob) {
    var globSegments = glob.split('.'),
        segments = $state.$current.name.split('.');

    //match greedy starts
    if (globSegments[0] === '**') {
       segments = segments.slice(segments.indexOf(globSegments[1]));
       segments.unshift('**');
    }
    //match greedy ends
    if (globSegments[globSegments.length - 1] === '**') {
       segments.splice(segments.indexOf(globSegments[globSegments.length - 2]) + 1, Number.MAX_VALUE);
       segments.push('**');
    }

    if (globSegments.length != segments.length) {
      return false;
    }

    //match single stars
    for (var i = 0, l = globSegments.length; i < l; i++) {
      if (globSegments[i] === '*') {
        segments[i] = '*';
      }
    }

    return segments.join('') === globSegments.join('');
  }


  // Implicit root state that is always active
  root = registerState({
    name: '',
    url: '^',
    views: null,
    'abstract': true
  });
  root.navigable = null;


  /**
   * @ngdoc function
   * @name ui.router.state.$stateProvider#decorator
   * @methodOf ui.router.state.$stateProvider
   *
   * @description
   * Allows you to extend (carefully) or override (at your own peril) the 
   * `stateBuilder` object used internally by `$stateProvider`. This can be used 
   * to add custom functionality to ui-router, for example inferring templateUrl 
   * based on the state name.
   *
   * When passing only a name, it returns the current (original or decorated) builder
   * function that matches `name`.
   *
   * The builder functions that can be decorated are listed below. Though not all
   * necessarily have a good use case for decoration, that is up to you to decide.
   *
   * In addition, users can attach custom decorators, which will generate new 
   * properties within the state's internal definition. There is currently no clear 
   * use-case for this beyond accessing internal states (i.e. $state.$current), 
   * however, expect this to become increasingly relevant as we introduce additional 
   * meta-programming features.
   *
   * **Warning**: Decorators should not be interdependent because the order of 
   * execution of the builder functions in non-deterministic. Builder functions 
   * should only be dependent on the state definition object and super function.
   *
   *
   * Existing builder functions and current return values:
   *
   * - **parent** `{object}` - returns the parent state object.
   * - **data** `{object}` - returns state data, including any inherited data that is not
   *   overridden by own values (if any).
   * - **url** `{object}` - returns a {link ui.router.util.type:UrlMatcher} or null.
   * - **navigable** `{object}` - returns closest ancestor state that has a URL (aka is 
   *   navigable).
   * - **params** `{object}` - returns an array of state params that are ensured to 
   *   be a super-set of parent's params.
   * - **views** `{object}` - returns a views object where each key is an absolute view 
   *   name (i.e. "viewName@stateName") and each value is the config object 
   *   (template, controller) for the view. Even when you don't use the views object 
   *   explicitly on a state config, one is still created for you internally.
   *   So by decorating this builder function you have access to decorating template 
   *   and controller properties.
   * - **ownParams** `{object}` - returns an array of params that belong to the state, 
   *   not including any params defined by ancestor states.
   * - **path** `{string}` - returns the full path from the root down to this state. 
   *   Needed for state activation.
   * - **includes** `{object}` - returns an object that includes every state that 
   *   would pass a '$state.includes()' test.
   *
   * @example
   * <pre>
   * // Override the internal 'views' builder with a function that takes the state
   * // definition, and a reference to the internal function being overridden:
   * $stateProvider.decorator('views', function ($state, parent) {
   *   var result = {},
   *       views = parent(state);
   *
   *   angular.forEach(view, function (config, name) {
   *     var autoName = (state.name + '.' + name).replace('.', '/');
   *     config.templateUrl = config.templateUrl || '/partials/' + autoName + '.html';
   *     result[name] = config;
   *   });
   *   return result;
   * });
   *
   * $stateProvider.state('home', {
   *   views: {
   *     'contact.list': { controller: 'ListController' },
   *     'contact.item': { controller: 'ItemController' }
   *   }
   * });
   *
   * // ...
   *
   * $state.go('home');
   * // Auto-populates list and item views with /partials/home/contact/list.html,
   * // and /partials/home/contact/item.html, respectively.
   * </pre>
   *
   * @param {string} name The name of the builder function to decorate. 
   * @param {object} func A function that is responsible for decorating the original 
   * builder function. The function receives two parameters:
   *
   *   - `{object}` - state - The state config object.
   *   - `{object}` - super - The original builder function.
   *
   * @return {object} $stateProvider - $stateProvider instance
   */
  this.decorator = decorator;
  function decorator(name, func) {
    /*jshint validthis: true */
    if (isString(name) && !isDefined(func)) {
      return stateBuilder[name];
    }
    if (!isFunction(func) || !isString(name)) {
      return this;
    }
    if (stateBuilder[name] && !stateBuilder.$delegates[name]) {
      stateBuilder.$delegates[name] = stateBuilder[name];
    }
    stateBuilder[name] = func;
    return this;
  }

  /**
   * @ngdoc function
   * @name ui.router.state.$stateProvider#state
   * @methodOf ui.router.state.$stateProvider
   *
   * @description
   * Registers a state configuration under a given state name. The stateConfig object
   * has the following acceptable properties.
   *
   * <a id='template'></a>
   *
   * - **`template`** - {string|function=} - html template as a string or a function that returns
   *   an html template as a string which should be used by the uiView directives. This property 
   *   takes precedence over templateUrl.
   *   
   *   If `template` is a function, it will be called with the following parameters:
   *
   *   - {array.&lt;object&gt;} - state parameters extracted from the current $location.path() by
   *     applying the current state
   *
   * <a id='templateUrl'></a>
   *
   * - **`templateUrl`** - {string|function=} - path or function that returns a path to an html 
   *   template that should be used by uiView.
   *   
   *   If `templateUrl` is a function, it will be called with the following parameters:
   *
   *   - {array.&lt;object&gt;} - state parameters extracted from the current $location.path() by 
   *     applying the current state
   *
   * <a id='templateProvider'></a>
   *
   * - **`templateProvider`** - {function=} - Provider function that returns HTML content
   *   string.
   *
   * <a id='controller'></a>
   *
   * - **`controller`** - {string|function=} -  Controller fn that should be associated with newly 
   *   related scope or the name of a registered controller if passed as a string.
   *
   * <a id='controllerProvider'></a>
   *
   * - **`controllerProvider`** - {function=} - Injectable provider function that returns
   *   the actual controller or string.
   *
   * <a id='controllerAs'></a>
   * 
   * - **`controllerAs`** – {string=} – A controller alias name. If present the controller will be 
   *   published to scope under the controllerAs name.
   *
   * <a id='resolve'></a>
   *
   * - **`resolve`** - {object.&lt;string, function&gt;=} - An optional map of dependencies which 
   *   should be injected into the controller. If any of these dependencies are promises, 
   *   the router will wait for them all to be resolved or one to be rejected before the 
   *   controller is instantiated. If all the promises are resolved successfully, the values 
   *   of the resolved promises are injected and $stateChangeSuccess event is fired. If any 
   *   of the promises are rejected the $stateChangeError event is fired. The map object is:
   *   
   *   - key - {string}: name of dependency to be injected into controller
   *   - factory - {string|function}: If string then it is alias for service. Otherwise if function, 
   *     it is injected and return value it treated as dependency. If result is a promise, it is 
   *     resolved before its value is injected into controller.
   *
   * <a id='url'></a>
   *
   * - **`url`** - {string=} - A url with optional parameters. When a state is navigated or
   *   transitioned to, the `$stateParams` service will be populated with any 
   *   parameters that were passed.
   *
   * <a id='params'></a>
   *
   * - **`params`** - {object=} - An array of parameter names or regular expressions. Only 
   *   use this within a state if you are not using url. Otherwise you can specify your
   *   parameters within the url. When a state is navigated or transitioned to, the 
   *   $stateParams service will be populated with any parameters that were passed.
   *
   * <a id='views'></a>
   *
   * - **`views`** - {object=} - Use the views property to set up multiple views or to target views
   *   manually/explicitly.
   *
   * <a id='abstract'></a>
   *
   * - **`abstract`** - {boolean=} - An abstract state will never be directly activated, 
   *   but can provide inherited properties to its common children states.
   *
   * <a id='onEnter'></a>
   *
   * - **`onEnter`** - {object=} - Callback function for when a state is entered. Good way
   *   to trigger an action or dispatch an event, such as opening a dialog.
   *
   * <a id='onExit'></a>
   *
   * - **`onExit`** - {object=} - Callback function for when a state is exited. Good way to
   *   trigger an action or dispatch an event, such as opening a dialog.
   *
   * <a id='reloadOnSearch'></a>
   *
   * - **`reloadOnSearch = true`** - {boolean=} - If `false`, will not retrigger the same state 
   *   just because a search/query parameter has changed (via $location.search() or $location.hash()). 
   *   Useful for when you'd like to modify $location.search() without triggering a reload.
   *
   * <a id='data'></a>
   *
   * - **`data`** - {object=} - Arbitrary data object, useful for custom configuration.
   *
   * @example
   * <pre>
   * // Some state name examples
   *
   * // stateName can be a single top-level name (must be unique).
   * $stateProvider.state("home", {});
   *
   * // Or it can be a nested state name. This state is a child of the 
   * // above "home" state.
   * $stateProvider.state("home.newest", {});
   *
   * // Nest states as deeply as needed.
   * $stateProvider.state("home.newest.abc.xyz.inception", {});
   *
   * // state() returns $stateProvider, so you can chain state declarations.
   * $stateProvider
   *   .state("home", {})
   *   .state("about", {})
   *   .state("contacts", {});
   * </pre>
   *
   * @param {string} name A unique state name, e.g. "home", "about", "contacts". 
   * To create a parent/child state use a dot, e.g. "about.sales", "home.newest".
   * @param {object} definition State configuration object.
   */
  this.state = state;
  function state(name, definition) {
    /*jshint validthis: true */
    if (isObject(name)) definition = name;
    else definition.name = name;
    registerState(definition);
    return this;
  }

  /**
   * @ngdoc object
   * @name ui.router.state.$state
   *
   * @requires $rootScope
   * @requires $q
   * @requires ui.router.state.$view
   * @requires $injector
   * @requires ui.router.util.$resolve
   * @requires ui.router.state.$stateParams
   *
   * @property {object} params A param object, e.g. {sectionId: section.id)}, that 
   * you'd like to test against the current active state.
   * @property {object} current A reference to the state's config object. However 
   * you passed it in. Useful for accessing custom data.
   * @property {object} transition Currently pending transition. A promise that'll 
   * resolve or reject.
   *
   * @description
   * `$state` service is responsible for representing states as well as transitioning
   * between them. It also provides interfaces to ask for current state or even states
   * you're coming from.
   */
  // $urlRouter is injected just to ensure it gets instantiated
  this.$get = $get;
  $get.$inject = ['$rootScope', '$q', '$view', '$injector', '$resolve', '$stateParams', '$location', '$urlRouter', '$browser'];
  function $get(   $rootScope,   $q,   $view,   $injector,   $resolve,   $stateParams,   $location,   $urlRouter,   $browser) {

    var TransitionSuperseded = $q.reject(new Error('transition superseded'));
    var TransitionPrevented = $q.reject(new Error('transition prevented'));
    var TransitionAborted = $q.reject(new Error('transition aborted'));
    var TransitionFailed = $q.reject(new Error('transition failed'));
    var currentLocation = $location.url();
    var baseHref = $browser.baseHref();

    function syncUrl() {
      if ($location.url() !== currentLocation) {
        $location.url(currentLocation);
        $location.replace();
      }
    }

    root.locals = { resolve: null, globals: { $stateParams: {} } };
    $state = {
      params: {},
      current: root.self,
      $current: root,
      transition: null
    };

    /**
     * @ngdoc function
     * @name ui.router.state.$state#reload
     * @methodOf ui.router.state.$state
     *
     * @description
     * A method that force reloads the current state. All resolves are re-resolved, events are not re-fired, 
     * and controllers reinstantiated (bug with controllers reinstantiating right now, fixing soon).
     *
     * @example
     * <pre>
     * var app angular.module('app', ['ui.router']);
     *
     * app.controller('ctrl', function ($scope, $state) {
     *   $scope.reload = function(){
     *     $state.reload();
     *   }
     * });
     * </pre>
     *
     * `reload()` is just an alias for:
     * <pre>
     * $state.transitionTo($state.current, $stateParams, { 
     *   reload: true, inherit: false, notify: false 
     * });
     * </pre>
     */
    $state.reload = function reload() {
      $state.transitionTo($state.current, $stateParams, { reload: true, inherit: false, notify: false });
    };

    /**
     * @ngdoc function
     * @name ui.router.state.$state#go
     * @methodOf ui.router.state.$state
     *
     * @description
     * Convenience method for transitioning to a new state. `$state.go` calls 
     * `$state.transitionTo` internally but automatically sets options to 
     * `{ location: true, inherit: true, relative: $state.$current, notify: true }`. 
     * This allows you to easily use an absolute or relative to path and specify 
     * only the parameters you'd like to update (while letting unspecified parameters 
     * inherit from the currently active ancestor states).
     *
     * @example
     * <pre>
     * var app = angular.module('app', ['ui.router']);
     *
     * app.controller('ctrl', function ($scope, $state) {
     *   $scope.changeState = function () {
     *     $state.go('contact.detail');
     *   };
     * });
     * </pre>
     * <img src='../ngdoc_assets/StateGoExamples.png'/>
     *
     * @param {string} to Absolute state name or relative state path. Some examples:
     *
     * - `$state.go('contact.detail')` - will go to the `contact.detail` state
     * - `$state.go('^')` - will go to a parent state
     * - `$state.go('^.sibling')` - will go to a sibling state
     * - `$state.go('.child.grandchild')` - will go to grandchild state
     *
     * @param {object=} params A map of the parameters that will be sent to the state, 
     * will populate $stateParams. Any parameters that are not specified will be inherited from currently 
     * defined parameters. This allows, for example, going to a sibling state that shares parameters
     * specified in a parent state. Parameter inheritance only works between common ancestor states, I.e.
     * transitioning to a sibling will get you the parameters for all parents, transitioning to a child
     * will get you all current parameters, etc.
     * @param {object=} options Options object. The options are:
     *
     * - **`location`** - {boolean=true|string=} - If `true` will update the url in the location bar, if `false`
     *    will not. If string, must be `"replace"`, which will update url and also replace last history record.
     * - **`inherit`** - {boolean=true}, If `true` will inherit url parameters from current url.
     * - **`relative`** - {object=$state.$current}, When transitioning with relative path (e.g '^'), 
     *    defines which state to be relative from.
     * - **`notify`** - {boolean=true}, If `true` will broadcast $stateChangeStart and $stateChangeSuccess events.
     * - **`reload`** (v0.2.5) - {boolean=false}, If `true` will force transition even if the state or params 
     *    have not changed, aka a reload of the same state. It differs from reloadOnSearch because you'd
     *    use this when you want to force a reload when *everything* is the same, including search params.
     *
     * @returns {promise} A promise representing the state of the new transition.
     *
     * Possible success values:
     *
     * - $state.current
     *
     * <br/>Possible rejection values:
     *
     * - 'transition superseded' - when a newer transition has been started after this one
     * - 'transition prevented' - when `event.preventDefault()` has been called in a `$stateChangeStart` listener
     * - 'transition aborted' - when `event.preventDefault()` has been called in a `$stateNotFound` listener or
     *   when a `$stateNotFound` `event.retry` promise errors.
     * - 'transition failed' - when a state has been unsuccessfully found after 2 tries.
     * - *resolve error* - when an error has occurred with a `resolve`
     *
     */
    $state.go = function go(to, params, options) {
      return this.transitionTo(to, params, extend({ inherit: true, relative: $state.$current }, options));
    };

    /**
     * @ngdoc function
     * @name ui.router.state.$state#transitionTo
     * @methodOf ui.router.state.$state
     *
     * @description
     * Low-level method for transitioning to a new state. {@link ui.router.state.$state#methods_go $state.go}
     * uses `transitionTo` internally. `$state.go` is recommended in most situations.
     *
     * @example
     * <pre>
     * var app = angular.module('app', ['ui.router']);
     *
     * app.controller('ctrl', function ($scope, $state) {
     *   $scope.changeState = function () {
     *     $state.transitionTo('contact.detail');
     *   };
     * });
     * </pre>
     *
     * @param {string} to State name.
     * @param {object=} toParams A map of the parameters that will be sent to the state,
     * will populate $stateParams.
     * @param {object=} options Options object. The options are:
     *
     * - **`location`** - {boolean=true|string=} - If `true` will update the url in the location bar, if `false`
     *    will not. If string, must be `"replace"`, which will update url and also replace last history record.
     * - **`inherit`** - {boolean=false}, If `true` will inherit url parameters from current url.
     * - **`relative`** - {object=}, When transitioning with relative path (e.g '^'), 
     *    defines which state to be relative from.
     * - **`notify`** - {boolean=true}, If `true` will broadcast $stateChangeStart and $stateChangeSuccess events.
     * - **`reload`** (v0.2.5) - {boolean=false}, If `true` will force transition even if the state or params 
     *    have not changed, aka a reload of the same state. It differs from reloadOnSearch because you'd
     *    use this when you want to force a reload when *everything* is the same, including search params.
     *
     * @returns {promise} A promise representing the state of the new transition. See
     * {@link ui.router.state.$state#methods_go $state.go}.
     */
    $state.transitionTo = function transitionTo(to, toParams, options) {
      toParams = toParams || {};
      options = extend({
        location: true, inherit: false, relative: null, notify: true, reload: false, $retry: false
      }, options || {});

      var from = $state.$current, fromParams = $state.params, fromPath = from.path;
      var evt, toState = findState(to, options.relative);

      if (!isDefined(toState)) {
        // Broadcast not found event and abort the transition if prevented
        var redirect = { to: to, toParams: toParams, options: options };

        /**
         * @ngdoc event
         * @name ui.router.state.$state#$stateNotFound
         * @eventOf ui.router.state.$state
         * @eventType broadcast on root scope
         * @description
         * Fired when a requested state **cannot be found** using the provided state name during transition.
         * The event is broadcast allowing any handlers a single chance to deal with the error (usually by
         * lazy-loading the unfound state). A special `unfoundState` object is passed to the listener handler,
         * you can see its three properties in the example. You can use `event.preventDefault()` to abort the
         * transition and the promise returned from `go` will be rejected with a `'transition aborted'` value.
         *
         * @param {Object} event Event object.
         * @param {Object} unfoundState Unfound State information. Contains: `to, toParams, options` properties.
         * @param {State} fromState Current state object.
         * @param {Object} fromParams Current state params.
         *
         * @example
         *
         * <pre>
         * // somewhere, assume lazy.state has not been defined
         * $state.go("lazy.state", {a:1, b:2}, {inherit:false});
         *
         * // somewhere else
         * $scope.$on('$stateNotFound',
         * function(event, unfoundState, fromState, fromParams){
         *     console.log(unfoundState.to); // "lazy.state"
         *     console.log(unfoundState.toParams); // {a:1, b:2}
         *     console.log(unfoundState.options); // {inherit:false} + default options
         * })
         * </pre>
         */
        evt = $rootScope.$broadcast('$stateNotFound', redirect, from.self, fromParams);
        if (evt.defaultPrevented) {
          syncUrl();
          return TransitionAborted;
        }

        // Allow the handler to return a promise to defer state lookup retry
        if (evt.retry) {
          if (options.$retry) {
            syncUrl();
            return TransitionFailed;
          }
          var retryTransition = $state.transition = $q.when(evt.retry);
          retryTransition.then(function() {
            if (retryTransition !== $state.transition) return TransitionSuperseded;
            redirect.options.$retry = true;
            return $state.transitionTo(redirect.to, redirect.toParams, redirect.options);
          }, function() {
            return TransitionAborted;
          });
          syncUrl();
          return retryTransition;
        }

        // Always retry once if the $stateNotFound was not prevented
        // (handles either redirect changed or state lazy-definition)
        to = redirect.to;
        toParams = redirect.toParams;
        options = redirect.options;
        toState = findState(to, options.relative);
        if (!isDefined(toState)) {
          if (options.relative) throw new Error("Could not resolve '" + to + "' from state '" + options.relative + "'");
          throw new Error("No such state '" + to + "'");
        }
      }
      if (toState[abstractKey]) throw new Error("Cannot transition to abstract state '" + to + "'");
      if (options.inherit) toParams = inheritParams($stateParams, toParams || {}, $state.$current, toState);
      to = toState;

      var toPath = to.path;

      // Starting from the root of the path, keep all levels that haven't changed
      var keep, state, locals = root.locals, toLocals = [];
      for (keep = 0, state = toPath[keep];
           state && state === fromPath[keep] && equalForKeys(toParams, fromParams, state.ownParams) && !options.reload;
           keep++, state = toPath[keep]) {
        locals = toLocals[keep] = state.locals;
      }

      // If we're going to the same state and all locals are kept, we've got nothing to do.
      // But clear 'transition', as we still want to cancel any other pending transitions.
      // TODO: We may not want to bump 'transition' if we're called from a location change that we've initiated ourselves,
      // because we might accidentally abort a legitimate transition initiated from code?
      if (shouldTriggerReload(to, from, locals, options) ) {
        if ( to.self.reloadOnSearch !== false )
          syncUrl();
        $state.transition = null;
        return $q.when($state.current);
      }

      // Normalize/filter parameters before we pass them to event handlers etc.
      toParams = normalize(to.params, toParams || {});

      // Broadcast start event and cancel the transition if requested
      if (options.notify) {
        /**
         * @ngdoc event
         * @name ui.router.state.$state#$stateChangeStart
         * @eventOf ui.router.state.$state
         * @eventType broadcast on root scope
         * @description
         * Fired when the state transition **begins**. You can use `event.preventDefault()`
         * to prevent the transition from happening and then the transition promise will be
         * rejected with a `'transition prevented'` value.
         *
         * @param {Object} event Event object.
         * @param {State} toState The state being transitioned to.
         * @param {Object} toParams The params supplied to the `toState`.
         * @param {State} fromState The current state, pre-transition.
         * @param {Object} fromParams The params supplied to the `fromState`.
         *
         * @example
         *
         * <pre>
         * $rootScope.$on('$stateChangeStart',
         * function(event, toState, toParams, fromState, fromParams){
         *     event.preventDefault();
         *     // transitionTo() promise will be rejected with
         *     // a 'transition prevented' error
         * })
         * </pre>
         */
        evt = $rootScope.$broadcast('$stateChangeStart', to.self, toParams, from.self, fromParams);
        if (evt.defaultPrevented) {
          syncUrl();
          return TransitionPrevented;
        }
      }

      // Resolve locals for the remaining states, but don't update any global state just
      // yet -- if anything fails to resolve the current state needs to remain untouched.
      // We also set up an inheritance chain for the locals here. This allows the view directive
      // to quickly look up the correct definition for each view in the current state. Even
      // though we create the locals object itself outside resolveState(), it is initially
      // empty and gets filled asynchronously. We need to keep track of the promise for the
      // (fully resolved) current locals, and pass this down the chain.
      var resolved = $q.when(locals);
      for (var l=keep; l<toPath.length; l++, state=toPath[l]) {
        locals = toLocals[l] = inherit(locals);
        resolved = resolveState(state, toParams, state===to, resolved, locals);
      }

      // Once everything is resolved, we are ready to perform the actual transition
      // and return a promise for the new state. We also keep track of what the
      // current promise is, so that we can detect overlapping transitions and
      // keep only the outcome of the last transition.
      var transition = $state.transition = resolved.then(function () {
        var l, entering, exiting;

        if ($state.transition !== transition) return TransitionSuperseded;

        // Exit 'from' states not kept
        for (l=fromPath.length-1; l>=keep; l--) {
          exiting = fromPath[l];
          if (exiting.self.onExit) {
            $injector.invoke(exiting.self.onExit, exiting.self, exiting.locals.globals);
          }
          exiting.locals = null;
        }

        // Enter 'to' states not kept
        for (l=keep; l<toPath.length; l++) {
          entering = toPath[l];
          entering.locals = toLocals[l];
          if (entering.self.onEnter) {
            $injector.invoke(entering.self.onEnter, entering.self, entering.locals.globals);
          }
        }

        // Run it again, to catch any transitions in callbacks
        if ($state.transition !== transition) return TransitionSuperseded;

        // Update globals in $state
        $state.$current = to;
        $state.current = to.self;
        $state.params = toParams;
        copy($state.params, $stateParams);
        $state.transition = null;

        // Update $location
        var toNav = to.navigable;
        if (options.location && toNav) {
          $location.url(toNav.url.format(toNav.locals.globals.$stateParams));

          if (options.location === 'replace') {
            $location.replace();
          }
        }

        if (options.notify) {
        /**
         * @ngdoc event
         * @name ui.router.state.$state#$stateChangeSuccess
         * @eventOf ui.router.state.$state
         * @eventType broadcast on root scope
         * @description
         * Fired once the state transition is **complete**.
         *
         * @param {Object} event Event object.
         * @param {State} toState The state being transitioned to.
         * @param {Object} toParams The params supplied to the `toState`.
         * @param {State} fromState The current state, pre-transition.
         * @param {Object} fromParams The params supplied to the `fromState`.
         */
          $rootScope.$broadcast('$stateChangeSuccess', to.self, toParams, from.self, fromParams);
        }
        currentLocation = $location.url();

        return $state.current;
      }, function (error) {
        if ($state.transition !== transition) return TransitionSuperseded;

        $state.transition = null;
        /**
         * @ngdoc event
         * @name ui.router.state.$state#$stateChangeError
         * @eventOf ui.router.state.$state
         * @eventType broadcast on root scope
         * @description
         * Fired when an **error occurs** during transition. It's important to note that if you
         * have any errors in your resolve functions (javascript errors, non-existent services, etc)
         * they will not throw traditionally. You must listen for this $stateChangeError event to
         * catch **ALL** errors.
         *
         * @param {Object} event Event object.
         * @param {State} toState The state being transitioned to.
         * @param {Object} toParams The params supplied to the `toState`.
         * @param {State} fromState The current state, pre-transition.
         * @param {Object} fromParams The params supplied to the `fromState`.
         * @param {Error} error The resolve error object.
         */
        $rootScope.$broadcast('$stateChangeError', to.self, toParams, from.self, fromParams, error);
        syncUrl();

        return $q.reject(error);
      });

      return transition;
    };

    /**
     * @ngdoc function
     * @name ui.router.state.$state#is
     * @methodOf ui.router.state.$state
     *
     * @description
     * Similar to {@link ui.router.state.$state#methods_includes $state.includes},
     * but only checks for the full state name. If params is supplied then it will be 
     * tested for strict equality against the current active params object, so all params 
     * must match with none missing and no extras.
     *
     * @example
     * <pre>
     * $state.is('contact.details.item'); // returns true
     * $state.is(contactDetailItemStateObject); // returns true
     *
     * // everything else would return false
     * </pre>
     *
     * @param {string|object} stateName The state name or state object you'd like to check.
     * @param {object=} params A param object, e.g. `{sectionId: section.id}`, that you'd like 
     * to test against the current active state.
     * @returns {boolean} Returns true if it is the state.
     */
    $state.is = function is(stateOrName, params) {
      var state = findState(stateOrName);

      if (!isDefined(state)) {
        return undefined;
      }

      if ($state.$current !== state) {
        return false;
      }

      return isDefined(params) && params !== null ? angular.equals($stateParams, params) : true;
    };

    /**
     * @ngdoc function
     * @name ui.router.state.$state#includes
     * @methodOf ui.router.state.$state
     *
     * @description
     * A method to determine if the current active state is equal to or is the child of the 
     * state stateName. If any params are passed then they will be tested for a match as well.
     * Not all the parameters need to be passed, just the ones you'd like to test for equality.
     *
     * @example
     * <pre>
     * $state.$current.name = 'contacts.details.item';
     *
     * $state.includes("contacts"); // returns true
     * $state.includes("contacts.details"); // returns true
     * $state.includes("contacts.details.item"); // returns true
     * $state.includes("contacts.list"); // returns false
     * $state.includes("about"); // returns false
     * </pre>
     *
     * @description
     * Basic globing patterns will also work.
     *
     * @example
     * <pre>
     * $state.$current.name = 'contacts.details.item.url';
     *
     * $state.includes("*.details.*.*"); // returns true
     * $state.includes("*.details.**"); // returns true
     * $state.includes("**.item.**"); // returns true
     * $state.includes("*.details.item.url"); // returns true
     * $state.includes("*.details.*.url"); // returns true
     * $state.includes("*.details.*"); // returns false
     * $state.includes("item.**"); // returns false
     * </pre>
     *
     * @param {string} stateOrName A partial name to be searched for within the current state name.
     * @param {object} params A param object, e.g. `{sectionId: section.id}`, 
     * that you'd like to test against the current active state.
     * @returns {boolean} Returns true if it does include the state
     */

    $state.includes = function includes(stateOrName, params) {
      if (isString(stateOrName) && isGlob(stateOrName)) {
        if (doesStateMatchGlob(stateOrName)) {
          stateOrName = $state.$current.name;
        } else {
          return false;
        }
      }

      var state = findState(stateOrName);
      if (!isDefined(state)) {
        return undefined;
      }

      if (!isDefined($state.$current.includes[state.name])) {
        return false;
      }

      var validParams = true;
      angular.forEach(params, function(value, key) {
        if (!isDefined($stateParams[key]) || $stateParams[key] !== value) {
          validParams = false;
        }
      });
      return validParams;
    };


    /**
     * @ngdoc function
     * @name ui.router.state.$state#href
     * @methodOf ui.router.state.$state
     *
     * @description
     * A url generation method that returns the compiled url for the given state populated with the given params.
     *
     * @example
     * <pre>
     * expect($state.href("about.person", { person: "bob" })).toEqual("/about/bob");
     * </pre>
     *
     * @param {string|object} stateOrName The state name or state object you'd like to generate a url from.
     * @param {object=} params An object of parameter values to fill the state's required parameters.
     * @param {object=} options Options object. The options are:
     *
     * - **`lossy`** - {boolean=true} -  If true, and if there is no url associated with the state provided in the
     *    first parameter, then the constructed href url will be built from the first navigable ancestor (aka
     *    ancestor with a valid url).
     * - **`inherit`** - {boolean=false}, If `true` will inherit url parameters from current url.
     * - **`relative`** - {object=$state.$current}, When transitioning with relative path (e.g '^'), 
     *    defines which state to be relative from.
     * - **`absolute`** - {boolean=false},  If true will generate an absolute url, e.g. "http://www.example.com/fullurl".
     * 
     * @returns {string} compiled state url
     */
    $state.href = function href(stateOrName, params, options) {
      options = extend({ lossy: true, inherit: false, absolute: false, relative: $state.$current }, options || {});
      var state = findState(stateOrName, options.relative);
      if (!isDefined(state)) return null;

      params = inheritParams($stateParams, params || {}, $state.$current, state);
      var nav = (state && options.lossy) ? state.navigable : state;
      var url = (nav && nav.url) ? nav.url.format(normalize(state.params, params || {})) : null;
      if (!$locationProvider.html5Mode() && url) {
        url = "#" + $locationProvider.hashPrefix() + url;
      }

      if (baseHref !== '/') {
        if ($locationProvider.html5Mode()) {
          url = baseHref.slice(0, -1) + url;
        } else if (options.absolute){
          url = baseHref.slice(1) + url;
        }
      }

      if (options.absolute && url) {
        url = $location.protocol() + '://' + 
              $location.host() + 
              ($location.port() == 80 || $location.port() == 443 ? '' : ':' + $location.port()) + 
              (!$locationProvider.html5Mode() && url ? '/' : '') + 
              url;
      }
      return url;
    };

    /**
     * @ngdoc function
     * @name ui.router.state.$state#get
     * @methodOf ui.router.state.$state
     *
     * @description
     * Returns the state configuration object for any specific state or all states.
     *
     * @param {string|object=} stateOrName If provided, will only get the config for
     * the requested state. If not provided, returns an array of ALL state configs.
     * @returns {object|array} State configuration object or array of all objects.
     */
    $state.get = function (stateOrName, context) {
      if (!isDefined(stateOrName)) {
        var list = [];
        forEach(states, function(state) { list.push(state.self); });
        return list;
      }
      var state = findState(stateOrName, context);
      return (state && state.self) ? state.self : null;
    };

    function resolveState(state, params, paramsAreFiltered, inherited, dst) {
      // Make a restricted $stateParams with only the parameters that apply to this state if
      // necessary. In addition to being available to the controller and onEnter/onExit callbacks,
      // we also need $stateParams to be available for any $injector calls we make during the
      // dependency resolution process.
      var $stateParams = (paramsAreFiltered) ? params : filterByKeys(state.params, params);
      var locals = { $stateParams: $stateParams };

      // Resolve 'global' dependencies for the state, i.e. those not specific to a view.
      // We're also including $stateParams in this; that way the parameters are restricted
      // to the set that should be visible to the state, and are independent of when we update
      // the global $state and $stateParams values.
      dst.resolve = $resolve.resolve(state.resolve, locals, dst.resolve, state);
      var promises = [ dst.resolve.then(function (globals) {
        dst.globals = globals;
      }) ];
      if (inherited) promises.push(inherited);

      // Resolve template and dependencies for all views.
      forEach(state.views, function (view, name) {
        var injectables = (view.resolve && view.resolve !== state.resolve ? view.resolve : {});
        injectables.$template = [ function () {
          return $view.load(name, { view: view, locals: locals, params: $stateParams, notify: false }) || '';
        }];

        promises.push($resolve.resolve(injectables, locals, dst.resolve, state).then(function (result) {
          // References to the controller (only instantiated at link time)
          if (isFunction(view.controllerProvider) || isArray(view.controllerProvider)) {
            var injectLocals = angular.extend({}, injectables, locals);
            result.$$controller = $injector.invoke(view.controllerProvider, null, injectLocals);
          } else {
            result.$$controller = view.controller;
          }
          // Provide access to the state itself for internal use
          result.$$state = state;
          result.$$controllerAs = view.controllerAs;
          dst[name] = result;
        }));
      });

      // Wait for all the promises and then return the activation object
      return $q.all(promises).then(function (values) {
        return dst;
      });
    }

    return $state;
  }

  function shouldTriggerReload(to, from, locals, options) {
    if ( to === from && ((locals === from.locals && !options.reload) || (to.self.reloadOnSearch === false)) ) {
      return true;
    }
  }
}

angular.module('ui.router.state')
  .value('$stateParams', {})
  .provider('$state', $StateProvider);


$ViewProvider.$inject = [];
function $ViewProvider() {

  this.$get = $get;
  /**
   * @ngdoc object
   * @name ui.router.state.$view
   *
   * @requires ui.router.util.$templateFactory
   * @requires $rootScope
   *
   * @description
   *
   */
  $get.$inject = ['$rootScope', '$templateFactory'];
  function $get(   $rootScope,   $templateFactory) {
    return {
      // $view.load('full.viewName', { template: ..., controller: ..., resolve: ..., async: false, params: ... })
      /**
       * @ngdoc function
       * @name ui.router.state.$view#load
       * @methodOf ui.router.state.$view
       *
       * @description
       *
       * @param {string} name name
       * @param {object} options option object.
       */
      load: function load(name, options) {
        var result, defaults = {
          template: null, controller: null, view: null, locals: null, notify: true, async: true, params: {}
        };
        options = extend(defaults, options);

        if (options.view) {
          result = $templateFactory.fromConfig(options.view, options.params, options.locals);
        }
        if (result && options.notify) {
        /**
         * @ngdoc event
         * @name ui.router.state.$state#$viewContentLoading
         * @eventOf ui.router.state.$view
         * @eventType broadcast on root scope
         * @description
         *
         * Fired once the view **begins loading**, *before* the DOM is rendered.
         *
         * @param {Object} event Event object.
         * @param {Object} viewConfig The view config properties (template, controller, etc).
         *
         * @example
         *
         * <pre>
         * $scope.$on('$viewContentLoading',
         * function(event, viewConfig){
         *     // Access to all the view config properties.
         *     // and one special property 'targetView'
         *     // viewConfig.targetView
         * });
         * </pre>
         */
          $rootScope.$broadcast('$viewContentLoading', options);
        }
        return result;
      }
    };
  }
}

angular.module('ui.router.state').provider('$view', $ViewProvider);

/**
 * @ngdoc object
 * @name ui.router.state.$uiViewScrollProvider
 *
 * @description
 * Provider that returns the {@link ui.router.state.$uiViewScroll} service function.
 */
function $ViewScrollProvider() {

  var useAnchorScroll = false;

  /**
   * @ngdoc function
   * @name ui.router.state.$uiViewScrollProvider#useAnchorScroll
   * @methodOf ui.router.state.$uiViewScrollProvider
   *
   * @description
   * Reverts back to using the core [`$anchorScroll`](http://docs.angularjs.org/api/ng.$anchorScroll) service for
   * scrolling based on the url anchor.
   */
  this.useAnchorScroll = function () {
    useAnchorScroll = true;
  };

  /**
   * @ngdoc object
   * @name ui.router.state.$uiViewScroll
   *
   * @requires $anchorScroll
   * @requires $timeout
   *
   * @description
   * When called with a jqLite element, it scrolls the element into view (after a
   * `$timeout` so the DOM has time to refresh).
   *
   * If you prefer to rely on `$anchorScroll` to scroll the view to the anchor,
   * this can be enabled by calling {@link ui.router.state.$uiViewScrollProvider#methods_useAnchorScroll `$uiViewScrollProvider.useAnchorScroll()`}.
   */
  this.$get = ['$anchorScroll', '$timeout', function ($anchorScroll, $timeout) {
    if (useAnchorScroll) {
      return $anchorScroll;
    }

    return function ($element) {
      $timeout(function () {
        $element[0].scrollIntoView();
      }, 0, false);
    };
  }];
}

angular.module('ui.router.state').provider('$uiViewScroll', $ViewScrollProvider);

/**
 * @ngdoc directive
 * @name ui.router.state.directive:ui-view
 *
 * @requires ui.router.state.$state
 * @requires $compile
 * @requires $controller
 * @requires $injector
 * @requires ui.router.state.$uiViewScroll
 * @requires $document
 *
 * @restrict ECA
 *
 * @description
 * The ui-view directive tells $state where to place your templates.
 *
 * @param {string=} ui-view A view name. The name should be unique amongst the other views in the
 * same state. You can have views of the same name that live in different states.
 *
 * @param {string=} autoscroll It allows you to set the scroll behavior of the browser window
 * when a view is populated. By default, $anchorScroll is overridden by ui-router's custom scroll
 * service, {@link ui.router.state.$uiViewScroll}. This custom service let's you
 * scroll ui-view elements into view when they are populated during a state activation.
 *
 * *Note: To revert back to old [`$anchorScroll`](http://docs.angularjs.org/api/ng.$anchorScroll)
 * functionality, call `$uiViewScrollProvider.useAnchorScroll()`.*
 *
 * @param {string=} onload Expression to evaluate whenever the view updates.
 * 
 * @example
 * A view can be unnamed or named. 
 * <pre>
 * <!-- Unnamed -->
 * <div ui-view></div> 
 * 
 * <!-- Named -->
 * <div ui-view="viewName"></div>
 * </pre>
 *
 * You can only have one unnamed view within any template (or root html). If you are only using a 
 * single view and it is unnamed then you can populate it like so:
 * <pre>
 * <div ui-view></div> 
 * $stateProvider.state("home", {
 *   template: "<h1>HELLO!</h1>"
 * })
 * </pre>
 * 
 * The above is a convenient shortcut equivalent to specifying your view explicitly with the {@link ui.router.state.$stateProvider#views `views`}
 * config property, by name, in this case an empty name:
 * <pre>
 * $stateProvider.state("home", {
 *   views: {
 *     "": {
 *       template: "<h1>HELLO!</h1>"
 *     }
 *   }    
 * })
 * </pre>
 * 
 * But typically you'll only use the views property if you name your view or have more than one view 
 * in the same template. There's not really a compelling reason to name a view if its the only one, 
 * but you could if you wanted, like so:
 * <pre>
 * <div ui-view="main"></div>
 * </pre> 
 * <pre>
 * $stateProvider.state("home", {
 *   views: {
 *     "main": {
 *       template: "<h1>HELLO!</h1>"
 *     }
 *   }    
 * })
 * </pre>
 * 
 * Really though, you'll use views to set up multiple views:
 * <pre>
 * <div ui-view></div>
 * <div ui-view="chart"></div> 
 * <div ui-view="data"></div> 
 * </pre>
 * 
 * <pre>
 * $stateProvider.state("home", {
 *   views: {
 *     "": {
 *       template: "<h1>HELLO!</h1>"
 *     },
 *     "chart": {
 *       template: "<chart_thing/>"
 *     },
 *     "data": {
 *       template: "<data_thing/>"
 *     }
 *   }    
 * })
 * </pre>
 *
 * Examples for `autoscroll`:
 *
 * <pre>
 * <!-- If autoscroll present with no expression,
 *      then scroll ui-view into view -->
 * <ui-view autoscroll/>
 *
 * <!-- If autoscroll present with valid expression,
 *      then scroll ui-view into view if expression evaluates to true -->
 * <ui-view autoscroll='true'/>
 * <ui-view autoscroll='false'/>
 * <ui-view autoscroll='scopeVariable'/>
 * </pre>
 */
$ViewDirective.$inject = ['$state', '$injector', '$uiViewScroll'];
function $ViewDirective(   $state,   $injector,   $uiViewScroll) {

  function getService() {
    return ($injector.has) ? function(service) {
      return $injector.has(service) ? $injector.get(service) : null;
    } : function(service) {
      try {
        return $injector.get(service);
      } catch (e) {
        return null;
      }
    };
  }

  var service = getService(),
      $animator = service('$animator'),
      $animate = service('$animate');

  // Returns a set of DOM manipulation functions based on which Angular version
  // it should use
  function getRenderer(attrs, scope) {
    var statics = function() {
      return {
        enter: function (element, target, cb) { target.after(element); cb(); },
        leave: function (element, cb) { element.remove(); cb(); }
      };
    };

    if ($animate) {
      return {
        enter: function(element, target, cb) { $animate.enter(element, null, target, cb); },
        leave: function(element, cb) { $animate.leave(element, cb); }
      };
    }

    if ($animator) {
      var animate = $animator && $animator(scope, attrs);

      return {
        enter: function(element, target, cb) {animate.enter(element, null, target); cb(); },
        leave: function(element, cb) { animate.leave(element); cb(); }
      };
    }

    return statics();
  }

  var directive = {
    restrict: 'ECA',
    terminal: true,
    priority: 400,
    transclude: 'element',
    compile: function (tElement, tAttrs, $transclude) {
      return function (scope, $element, attrs) {
        var previousEl, currentEl, currentScope, latestLocals,
            onloadExp     = attrs.onload || '',
            autoScrollExp = attrs.autoscroll,
            renderer      = getRenderer(attrs, scope);

        scope.$on('$stateChangeSuccess', function() {
          updateView(false);
        });
        scope.$on('$viewContentLoading', function() {
          updateView(false);
        });

        updateView(true);

        function cleanupLastView() {
          if (previousEl) {
            previousEl.remove();
            previousEl = null;
          }

          if (currentScope) {
            currentScope.$destroy();
            currentScope = null;
          }

          if (currentEl) {
            renderer.leave(currentEl, function() {
              previousEl = null;
            });

            previousEl = currentEl;
            currentEl = null;
          }
        }

        function updateView(firstTime) {
          var newScope        = scope.$new(),
              name            = currentEl && currentEl.data('$uiViewName'),
              previousLocals  = name && $state.$current && $state.$current.locals[name];

          if (!firstTime && previousLocals === latestLocals) return; // nothing to do

          var clone = $transclude(newScope, function(clone) {
            renderer.enter(clone, $element, function onUiViewEnter() {
              if (angular.isDefined(autoScrollExp) && !autoScrollExp || scope.$eval(autoScrollExp)) {
                $uiViewScroll(clone);
              }
            });
            cleanupLastView();
          });

          latestLocals = $state.$current.locals[clone.data('$uiViewName')];

          currentEl = clone;
          currentScope = newScope;
          /**
           * @ngdoc event
           * @name ui.router.state.directive:ui-view#$viewContentLoaded
           * @eventOf ui.router.state.directive:ui-view
           * @eventType emits on ui-view directive scope
           * @description           *
           * Fired once the view is **loaded**, *after* the DOM is rendered.
           *
           * @param {Object} event Event object.
           */
          currentScope.$emit('$viewContentLoaded');
          currentScope.$eval(onloadExp);
        }
      };
    }
  };

  return directive;
}

$ViewDirectiveFill.$inject = ['$compile', '$controller', '$state'];
function $ViewDirectiveFill ($compile, $controller, $state) {
  return {
    restrict: 'ECA',
    priority: -400,
    compile: function (tElement) {
      var initial = tElement.html();
      return function (scope, $element, attrs) {
        var name      = attrs.uiView || attrs.name || '',
            inherited = $element.inheritedData('$uiView');

        if (name.indexOf('@') < 0) {
          name = name + '@' + (inherited ? inherited.state.name : '');
        }

        $element.data('$uiViewName', name);

        var current = $state.$current,
            locals  = current && current.locals[name];

        if (! locals) {
          return;
        }

        $element.data('$uiView', { name: name, state: locals.$$state });
        $element.html(locals.$template ? locals.$template : initial);

        var link = $compile($element.contents());

        if (locals.$$controller) {
          locals.$scope = scope;
          var controller = $controller(locals.$$controller, locals);
          if (locals.$$controllerAs) {
            scope[locals.$$controllerAs] = controller;
          }
          $element.data('$ngControllerController', controller);
          $element.children().data('$ngControllerController', controller);
        }

        link(scope);
      };
    }
  };
}

angular.module('ui.router.state').directive('uiView', $ViewDirective);
angular.module('ui.router.state').directive('uiView', $ViewDirectiveFill);

function parseStateRef(ref) {
  var parsed = ref.replace(/\n/g, " ").match(/^([^(]+?)\s*(\((.*)\))?$/);
  if (!parsed || parsed.length !== 4) throw new Error("Invalid state ref '" + ref + "'");
  return { state: parsed[1], paramExpr: parsed[3] || null };
}

function stateContext(el) {
  var stateData = el.parent().inheritedData('$uiView');

  if (stateData && stateData.state && stateData.state.name) {
    return stateData.state;
  }
}

/**
 * @ngdoc directive
 * @name ui.router.state.directive:ui-sref
 *
 * @requires ui.router.state.$state
 * @requires $timeout
 *
 * @restrict A
 *
 * @description
 * A directive that binds a link (`<a>` tag) to a state. If the state has an associated 
 * URL, the directive will automatically generate & update the `href` attribute via 
 * the {@link ui.router.state.$state#methods_href $state.href()} method. Clicking 
 * the link will trigger a state transition with optional parameters. 
 *
 * Also middle-clicking, right-clicking, and ctrl-clicking on the link will be 
 * handled natively by the browser.
 *
 * You can also use relative state paths within ui-sref, just like the relative 
 * paths passed to `$state.go()`. You just need to be aware that the path is relative
 * to the state that the link lives in, in other words the state that loaded the 
 * template containing the link.
 *
 * You can specify options to pass to {@link ui.router.state.$state#go $state.go()}
 * using the `ui-sref-opts` attribute. Options are restricted to `location`, `inherit`,
 * and `reload`.
 *
 * @example
 * Here's an example of how you'd use ui-sref and how it would compile. If you have the 
 * following template:
 * <pre>
 * <a ui-sref="home">Home</a> | <a ui-sref="about">About</a>
 * 
 * <ul>
 *     <li ng-repeat="contact in contacts">
 *         <a ui-sref="contacts.detail({ id: contact.id })">{{ contact.name }}</a>
 *     </li>
 * </ul>
 * </pre>
 * 
 * Then the compiled html would be (assuming Html5Mode is off):
 * <pre>
 * <a href="#/home" ui-sref="home">Home</a> | <a href="#/about" ui-sref="about">About</a>
 * 
 * <ul>
 *     <li ng-repeat="contact in contacts">
 *         <a href="#/contacts/1" ui-sref="contacts.detail({ id: contact.id })">Joe</a>
 *     </li>
 *     <li ng-repeat="contact in contacts">
 *         <a href="#/contacts/2" ui-sref="contacts.detail({ id: contact.id })">Alice</a>
 *     </li>
 *     <li ng-repeat="contact in contacts">
 *         <a href="#/contacts/3" ui-sref="contacts.detail({ id: contact.id })">Bob</a>
 *     </li>
 * </ul>
 *
 * <a ui-sref="home" ui-sref-opts="{reload: true}">Home</a>
 * </pre>
 *
 * @param {string} ui-sref 'stateName' can be any valid absolute or relative state
 * @param {Object} ui-sref-opts options to pass to {@link ui.router.state.$state#go $state.go()}
 */
$StateRefDirective.$inject = ['$state', '$timeout'];
function $StateRefDirective($state, $timeout) {
  var allowedOptions = ['location', 'inherit', 'reload'];

  return {
    restrict: 'A',
    require: '?^uiSrefActive',
    link: function(scope, element, attrs, uiSrefActive) {
      var ref = parseStateRef(attrs.uiSref);
      var params = null, url = null, base = stateContext(element) || $state.$current;
      var isForm = element[0].nodeName === "FORM";
      var attr = isForm ? "action" : "href", nav = true;

      var options = {
        relative: base
      };
      var optionsOverride = scope.$eval(attrs.uiSrefOpts) || {};
      angular.forEach(allowedOptions, function(option) {
        if (option in optionsOverride) {
          options[option] = optionsOverride[option];
        }
      });

      var update = function(newVal) {
        if (newVal) params = newVal;
        if (!nav) return;

        var newHref = $state.href(ref.state, params, options);

        if (uiSrefActive) {
          uiSrefActive.$$setStateInfo(ref.state, params);
        }
        if (!newHref) {
          nav = false;
          return false;
        }
        element[0][attr] = newHref;
      };

      if (ref.paramExpr) {
        scope.$watch(ref.paramExpr, function(newVal, oldVal) {
          if (newVal !== params) update(newVal);
        }, true);
        params = scope.$eval(ref.paramExpr);
      }
      update();

      if (isForm) return;

      element.bind("click", function(e) {
        var button = e.which || e.button;
        if ( !(button > 1 || e.ctrlKey || e.metaKey || e.shiftKey || element.attr('target')) ) {
          // HACK: This is to allow ng-clicks to be processed before the transition is initiated:
          $timeout(function() {
            $state.go(ref.state, params, options);
          });
          e.preventDefault();
        }
      });
    }
  };
}

/**
 * @ngdoc directive
 * @name ui.router.state.directive:ui-sref-active
 *
 * @requires ui.router.state.$state
 * @requires ui.router.state.$stateParams
 * @requires $interpolate
 *
 * @restrict A
 *
 * @description
 * A directive working alongside ui-sref to add classes to an element when the 
 * related ui-sref directive's state is active, and removing them when it is inactive.
 * The primary use-case is to simplify the special appearance of navigation menus 
 * relying on `ui-sref`, by having the "active" state's menu button appear different,
 * distinguishing it from the inactive menu items.
 *
 * @example
 * Given the following template:
 * <pre>
 * <ul>
 *   <li ui-sref-active="active" class="item">
 *     <a href ui-sref="app.user({user: 'bilbobaggins'})">@bilbobaggins</a>
 *   </li>
 * </ul>
 * </pre>
 * 
 * When the app state is "app.user", and contains the state parameter "user" with value "bilbobaggins", 
 * the resulting HTML will appear as (note the 'active' class):
 * <pre>
 * <ul>
 *   <li ui-sref-active="active" class="item active">
 *     <a ui-sref="app.user({user: 'bilbobaggins'})" href="/users/bilbobaggins">@bilbobaggins</a>
 *   </li>
 * </ul>
 * </pre>
 * 
 * The class name is interpolated **once** during the directives link time (any further changes to the 
 * interpolated value are ignored). 
 * 
 * Multiple classes may be specified in a space-separated format:
 * <pre>
 * <ul>
 *   <li ui-sref-active='class1 class2 class3'>
 *     <a ui-sref="app.user">link</a>
 *   </li>
 * </ul>
 * </pre>
 */
$StateActiveDirective.$inject = ['$state', '$stateParams', '$interpolate'];
function $StateActiveDirective($state, $stateParams, $interpolate) {
  return {
    restrict: "A",
    controller: ['$scope', '$element', '$attrs', function($scope, $element, $attrs) {
      var state, params, activeClass;

      // There probably isn't much point in $observing this
      activeClass = $interpolate($attrs.uiSrefActive || '', false)($scope);

      // Allow uiSref to communicate with uiSrefActive
      this.$$setStateInfo = function(newState, newParams) {
        state = $state.get(newState, stateContext($element));
        params = newParams;
        update();
      };

      $scope.$on('$stateChangeSuccess', update);

      // Update route state
      function update() {
        if ($state.$current.self === state && matchesParams()) {
          $element.addClass(activeClass);
        } else {
          $element.removeClass(activeClass);
        }
      }

      function matchesParams() {
        return !params || equalForKeys(params, $stateParams);
      }
    }]
  };
}

angular.module('ui.router.state')
  .directive('uiSref', $StateRefDirective)
  .directive('uiSrefActive', $StateActiveDirective);

/**
 * @ngdoc filter
 * @name ui.router.state.filter:isState
 *
 * @requires ui.router.state.$state
 *
 * @description
 * Translates to {@link ui.router.state.$state#methods_is $state.is("stateName")}.
 */
$IsStateFilter.$inject = ['$state'];
function $IsStateFilter($state) {
  return function(state) {
    return $state.is(state);
  };
}

/**
 * @ngdoc filter
 * @name ui.router.state.filter:includedByState
 *
 * @requires ui.router.state.$state
 *
 * @description
 * Translates to {@link ui.router.state.$state#methods_includes $state.includes('fullOrPartialStateName')}.
 */
$IncludedByStateFilter.$inject = ['$state'];
function $IncludedByStateFilter($state) {
  return function(state) {
    return $state.includes(state);
  };
}

angular.module('ui.router.state')
  .filter('isState', $IsStateFilter)
  .filter('includedByState', $IncludedByStateFilter);

/*
 * @ngdoc object
 * @name ui.router.compat.$routeProvider
 *
 * @requires ui.router.state.$stateProvider
 * @requires ui.router.router.$urlRouterProvider
 *
 * @description
 * `$routeProvider` of the `ui.router.compat` module overwrites the existing
 * `routeProvider` from the core. This is done to provide compatibility between
 * the UI Router and the core router.
 *
 * It also provides a `when()` method to register routes that map to certain urls.
 * Behind the scenes it actually delegates either to 
 * {@link ui.router.router.$urlRouterProvider $urlRouterProvider} or to the 
 * {@link ui.router.state.$stateProvider $stateProvider} to postprocess the given 
 * router definition object.
 */
$RouteProvider.$inject = ['$stateProvider', '$urlRouterProvider'];
function $RouteProvider(  $stateProvider,    $urlRouterProvider) {

  var routes = [];

  onEnterRoute.$inject = ['$$state'];
  function onEnterRoute(   $$state) {
    /*jshint validthis: true */
    this.locals = $$state.locals.globals;
    this.params = this.locals.$stateParams;
  }

  function onExitRoute() {
    /*jshint validthis: true */
    this.locals = null;
    this.params = null;
  }

  this.when = when;
  /*
   * @ngdoc function
   * @name ui.router.compat.$routeProvider#when
   * @methodOf ui.router.compat.$routeProvider
   *
   * @description
   * Registers a route with a given route definition object. The route definition
   * object has the same interface the angular core route definition object has.
   * 
   * @example
   * <pre>
   * var app = angular.module('app', ['ui.router.compat']);
   *
   * app.config(function ($routeProvider) {
   *   $routeProvider.when('home', {
   *     controller: function () { ... },
   *     templateUrl: 'path/to/template'
   *   });
   * });
   * </pre>
   *
   * @param {string} url URL as string
   * @param {object} route Route definition object
   *
   * @return {object} $routeProvider - $routeProvider instance
   */
  function when(url, route) {
    /*jshint validthis: true */
    if (route.redirectTo != null) {
      // Redirect, configure directly on $urlRouterProvider
      var redirect = route.redirectTo, handler;
      if (isString(redirect)) {
        handler = redirect; // leave $urlRouterProvider to handle
      } else if (isFunction(redirect)) {
        // Adapt to $urlRouterProvider API
        handler = function (params, $location) {
          return redirect(params, $location.path(), $location.search());
        };
      } else {
        throw new Error("Invalid 'redirectTo' in when()");
      }
      $urlRouterProvider.when(url, handler);
    } else {
      // Regular route, configure as state
      $stateProvider.state(inherit(route, {
        parent: null,
        name: 'route:' + encodeURIComponent(url),
        url: url,
        onEnter: onEnterRoute,
        onExit: onExitRoute
      }));
    }
    routes.push(route);
    return this;
  }

  /*
   * @ngdoc object
   * @name ui.router.compat.$route
   *
   * @requires ui.router.state.$state
   * @requires $rootScope
   * @requires $routeParams
   *
   * @property {object} routes - Array of registered routes.
   * @property {object} params - Current route params as object.
   * @property {string} current - Name of the current route.
   *
   * @description
   * The `$route` service provides interfaces to access defined routes. It also let's
   * you access route params through `$routeParams` service, so you have fully
   * control over all the stuff you would actually get from angular's core `$route`
   * service.
   */
  this.$get = $get;
  $get.$inject = ['$state', '$rootScope', '$routeParams'];
  function $get(   $state,   $rootScope,   $routeParams) {

    var $route = {
      routes: routes,
      params: $routeParams,
      current: undefined
    };

    function stateAsRoute(state) {
      return (state.name !== '') ? state : undefined;
    }

    $rootScope.$on('$stateChangeStart', function (ev, to, toParams, from, fromParams) {
      $rootScope.$broadcast('$routeChangeStart', stateAsRoute(to), stateAsRoute(from));
    });

    $rootScope.$on('$stateChangeSuccess', function (ev, to, toParams, from, fromParams) {
      $route.current = stateAsRoute(to);
      $rootScope.$broadcast('$routeChangeSuccess', stateAsRoute(to), stateAsRoute(from));
      copy(toParams, $route.params);
    });

    $rootScope.$on('$stateChangeError', function (ev, to, toParams, from, fromParams, error) {
      $rootScope.$broadcast('$routeChangeError', stateAsRoute(to), stateAsRoute(from), error);
    });

    return $route;
  }
}

angular.module('ui.router.compat')
  .provider('$route', $RouteProvider)
  .directive('ngView', $ViewDirective);
})(window, window.angular);

Youez - 2016 - github.com/yon3zu
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