refactor(fromJson/date filter): move date string logic to date filter

Breaks angular.fromJson which doesn't deserialize date strings into date objects.

This was done to make fromJson compatible with JSON.parse.

If you do require the old behavior - if at all neeeded then because of
json deserialization of XHR responses - then please create a custom
$http transform:

$httpProvider.defaults.transformResponse.push(function(data) {
  // recursively parse dates from data object here
  // see code removed in this diff for hints
});

Closes #202

3 files changed, 174 insertions, 159 deletions

diff --git a/src/JSON.js b/src/JSON.js
index 21d526c2..cddfc52d 100644
--- a/src/JSON.js
+++ b/src/JSON.js
@@ -1,7 +1,5 @@
 'use strict';
 
-var array = [].constructor;
-
 /**
  * @ngdoc function
  * @name angular.toJson
@@ -35,46 +33,11 @@ function toJson(obj, pretty) {
 function fromJson(json, useNative) {
   if (!isString(json)) return json;
 
-  var obj;
-
-  if (useNative && window.JSON && window.JSON.parse) {
-    obj = JSON.parse(json);
-  } else {
-    obj = parseJson(json, true)();
-  }
-  return transformDates(obj);
-
-  // TODO make forEach optionally recursive and remove this function
-  // TODO(misko): remove this once the $http service is checked in.
-  function transformDates(obj) {
-    if (isString(obj) && 15 <= obj.length && obj.length <= 24) {
-      return jsonStringToDate(obj);
-    } else if (isArray(obj) || isObject(obj)) {
-      forEach(obj, function(val, name) {
-        obj[name] = transformDates(val);
-      });
-    }
-    return obj;
-  }
+  return (useNative && window.JSON && window.JSON.parse)
+      ? JSON.parse(json)
+      : parseJson(json, true)();
 }
 
-var R_ISO8061_STR = /^(\d{4})-?(\d\d)-?(\d\d)(?:T(\d\d)(?:\:?(\d\d)(?:\:?(\d\d)(?:\.(\d{3}))?)?)?(Z|([+-])(\d\d):?(\d\d)))?$/;
-function jsonStringToDate(string){
-  var match;
-  if (match = string.match(R_ISO8061_STR)) {
-    var date = new Date(0),
-        tzHour = 0,
-        tzMin  = 0;
-    if (match[9]) {
-      tzHour = int(match[9] + match[10]);
-      tzMin = int(match[9] + match[11]);
-    }
-    date.setUTCFullYear(int(match[1]), int(match[2]) - 1, int(match[3]));
-    date.setUTCHours(int(match[4]||0) - tzHour, int(match[5]||0) - tzMin, int(match[6]||0), int(match[7]||0));
-    return date;
-  }
-  return string;
-}
 
 function jsonDateToString(date){
   if (!date) return date;
diff --git a/src/ng/filter/filters.js b/src/ng/filter/filters.js
index 078c54fc..c792cace 100644
--- a/src/ng/filter/filters.js
+++ b/src/ng/filter/filters.js
@@ -288,7 +288,8 @@ var DATE_FORMATS_SPLIT = /((?:[^yMdHhmsaZE']+)|(?:'(?:[^']|'')*')|(?:E+|y+|M+|d+
  *   (e.g. `"h o''clock"`).
  *
  * @param {(Date|number|string)} date Date to format either as Date object, milliseconds (string or
- *    number) or ISO 8601 extended datetime string (yyyy-MM-ddTHH:mm:ss.SSSZ).
+ *    number) or various ISO 8601 datetime string formats (e.g. yyyy-MM-ddTHH:mm:ss.SSSZ and it's
+ *    shorter versions like yyyy-MM-ddTHH:mmZ, yyyy-MM-dd or yyyyMMddTHHmmssZ).
  * @param {string=} format Formatting rules (see Description). If not specified,
  *    `mediumDate` is used.
  * @returns {string} Formatted string or the input if input is not recognized as date/millis.
@@ -317,6 +318,27 @@ var DATE_FORMATS_SPLIT = /((?:[^yMdHhmsaZE']+)|(?:'(?:[^']|'')*')|(?:E+|y+|M+|d+
  */
 dateFilter.$inject = ['$locale'];
 function dateFilter($locale) {
+
+
+  var R_ISO8601_STR = /^(\d{4})-?(\d\d)-?(\d\d)(?:T(\d\d)(?::?(\d\d)(?::?(\d\d)(?:\.(\d{3}))?)?)?(Z|([+-])(\d\d):?(\d\d)))?$/;
+  function jsonStringToDate(string){
+    var match;
+    if (match = string.match(R_ISO8601_STR)) {
+      var date = new Date(0),
+          tzHour = 0,
+          tzMin  = 0;
+      if (match[9]) {
+        tzHour = int(match[9] + match[10]);
+        tzMin = int(match[9] + match[11]);
+      }
+      date.setUTCFullYear(int(match[1]), int(match[2]) - 1, int(match[3]));
+      date.setUTCHours(int(match[4]||0) - tzHour, int(match[5]||0) - tzMin, int(match[6]||0), int(match[7]||0));
+      return date;
+    }
+    return string;
+  }
+
+
   return function(date, format) {
     var text = '',
         parts = [],
diff --git a/src/ngMock/angular-mocks.js b/src/ngMock/angular-mocks.js
index 306ca77b..f5dd6758 100644
--- a/src/ngMock/angular-mocks.js
+++ b/src/ngMock/angular-mocks.js
@@ -373,146 +373,176 @@ angular.mock.$LogProvider = function() {
 };
 
 
-/**
- * @ngdoc object
- * @name angular.mock.TzDate
- * @description
- *
- * *NOTE*: this is not an injectable instance, just a globally available mock class of `Date`.
- *
- * Mock of the Date type which has its timezone specified via constroctor arg.
- *
- * The main purpose is to create Date-like instances with timezone fixed to the specified timezone
- * offset, so that we can test code that depends on local timezone settings without dependency on
- * the time zone settings of the machine where the code is running.
- *
- * @param {number} offset Offset of the *desired* timezone in hours (fractions will be honored)
- * @param {(number|string)} timestamp Timestamp representing the desired time in *UTC*
- *
- * @example
- * !!!! WARNING !!!!!
- * This is not a complete Date object so only methods that were implemented can be called safely.
- * To make matters worse, TzDate instances inherit stuff from Date via a prototype.
- *
- * We do our best to intercept calls to "unimplemented" methods, but since the list of methods is
- * incomplete we might be missing some non-standard methods. This can result in errors like:
- * "Date.prototype.foo called on incompatible Object".
- *
- * <pre>
- * var newYearInBratislava = new TzDate(-1, '2009-12-31T23:00:00Z');
- * newYearInBratislava.getTimezoneOffset() => -60;
- * newYearInBratislava.getFullYear() => 2010;
- * newYearInBratislava.getMonth() => 0;
- * newYearInBratislava.getDate() => 1;
- * newYearInBratislava.getHours() => 0;
- * newYearInBratislava.getMinutes() => 0;
- * </pre>
- *
- */
-angular.mock.TzDate = function (offset, timestamp) {
-  var self = new Date(0);
-  if (angular.isString(timestamp)) {
-    var tsStr = timestamp;
-
-    self.origDate = angular.fromJson(angular.toJson({date:timestamp})).date;
-
-    timestamp = self.origDate.getTime();
-    if (isNaN(timestamp))
-      throw {
-        name: "Illegal Argument",
-        message: "Arg '" + tsStr + "' passed into TzDate constructor is not a valid date string"
-      };
-  } else {
-    self.origDate = new Date(timestamp);
+(function() {
+  var R_ISO8061_STR = /^(\d{4})-?(\d\d)-?(\d\d)(?:T(\d\d)(?:\:?(\d\d)(?:\:?(\d\d)(?:\.(\d{3}))?)?)?(Z|([+-])(\d\d):?(\d\d)))?$/;
+
+  function jsonStringToDate(string){
+    var match;
+    if (match = string.match(R_ISO8061_STR)) {
+      var date = new Date(0),
+          tzHour = 0,
+          tzMin  = 0;
+      if (match[9]) {
+        tzHour = int(match[9] + match[10]);
+        tzMin = int(match[9] + match[11]);
+      }
+      date.setUTCFullYear(int(match[1]), int(match[2]) - 1, int(match[3]));
+      date.setUTCHours(int(match[4]||0) - tzHour, int(match[5]||0) - tzMin, int(match[6]||0), int(match[7]||0));
+      return date;
+    }
+    return string;
   }
 
-  var localOffset = new Date(timestamp).getTimezoneOffset();
-  self.offsetDiff = localOffset*60*1000 - offset*1000*60*60;
-  self.date = new Date(timestamp + self.offsetDiff);
+  function int(str) {
+    return parseInt(str, 10);
+  }
 
-  self.getTime = function() {
-    return self.date.getTime() - self.offsetDiff;
-  };
 
-  self.toLocaleDateString = function() {
-    return self.date.toLocaleDateString();
-  };
+  /**
+   * @ngdoc object
+   * @name angular.mock.TzDate
+   * @description
+   *
+   * *NOTE*: this is not an injectable instance, just a globally available mock class of `Date`.
+   *
+   * Mock of the Date type which has its timezone specified via constroctor arg.
+   *
+   * The main purpose is to create Date-like instances with timezone fixed to the specified timezone
+   * offset, so that we can test code that depends on local timezone settings without dependency on
+   * the time zone settings of the machine where the code is running.
+   *
+   * @param {number} offset Offset of the *desired* timezone in hours (fractions will be honored)
+   * @param {(number|string)} timestamp Timestamp representing the desired time in *UTC*
+   *
+   * @example
+   * !!!! WARNING !!!!!
+   * This is not a complete Date object so only methods that were implemented can be called safely.
+   * To make matters worse, TzDate instances inherit stuff from Date via a prototype.
+   *
+   * We do our best to intercept calls to "unimplemented" methods, but since the list of methods is
+   * incomplete we might be missing some non-standard methods. This can result in errors like:
+   * "Date.prototype.foo called on incompatible Object".
+   *
+   * <pre>
+   * var newYearInBratislava = new TzDate(-1, '2009-12-31T23:00:00Z');
+   * newYearInBratislava.getTimezoneOffset() => -60;
+   * newYearInBratislava.getFullYear() => 2010;
+   * newYearInBratislava.getMonth() => 0;
+   * newYearInBratislava.getDate() => 1;
+   * newYearInBratislava.getHours() => 0;
+   * newYearInBratislava.getMinutes() => 0;
+   * </pre>
+   *
+   */
+  angular.mock.TzDate = function (offset, timestamp) {
+    var self = new Date(0);
+    if (angular.isString(timestamp)) {
+      var tsStr = timestamp;
+
+      self.origDate = jsonStringToDate(timestamp)
+
+      timestamp = self.origDate.getTime();
+      if (isNaN(timestamp))
+        throw {
+          name: "Illegal Argument",
+          message: "Arg '" + tsStr + "' passed into TzDate constructor is not a valid date string"
+        };
+    } else {
+      self.origDate = new Date(timestamp);
+    }
 
-  self.getFullYear = function() {
-    return self.date.getFullYear();
-  };
+    var localOffset = new Date(timestamp).getTimezoneOffset();
+    self.offsetDiff = localOffset*60*1000 - offset*1000*60*60;
+    self.date = new Date(timestamp + self.offsetDiff);
 
-  self.getMonth = function() {
-    return self.date.getMonth();
-  };
+    self.getTime = function() {
+      return self.date.getTime() - self.offsetDiff;
+    };
 
-  self.getDate = function() {
-    return self.date.getDate();
-  };
+    self.toLocaleDateString = function() {
+      return self.date.toLocaleDateString();
+    };
 
-  self.getHours = function() {
-    return self.date.getHours();
-  };
+    self.getFullYear = function() {
+      return self.date.getFullYear();
+    };
 
-  self.getMinutes = function() {
-    return self.date.getMinutes();
-  };
+    self.getMonth = function() {
+      return self.date.getMonth();
+    };
 
-  self.getSeconds = function() {
-    return self.date.getSeconds();
-  };
+    self.getDate = function() {
+      return self.date.getDate();
+    };
 
-  self.getTimezoneOffset = function() {
-    return offset * 60;
-  };
+    self.getHours = function() {
+      return self.date.getHours();
+    };
 
-  self.getUTCFullYear = function() {
-    return self.origDate.getUTCFullYear();
-  };
+    self.getMinutes = function() {
+      return self.date.getMinutes();
+    };
 
-  self.getUTCMonth = function() {
-    return self.origDate.getUTCMonth();
-  };
+    self.getSeconds = function() {
+      return self.date.getSeconds();
+    };
 
-  self.getUTCDate = function() {
-    return self.origDate.getUTCDate();
-  };
+    self.getTimezoneOffset = function() {
+      return offset * 60;
+    };
 
-  self.getUTCHours = function() {
-    return self.origDate.getUTCHours();
-  };
+    self.getUTCFullYear = function() {
+      return self.origDate.getUTCFullYear();
+    };
 
-  self.getUTCMinutes = function() {
-    return self.origDate.getUTCMinutes();
-  };
+    self.getUTCMonth = function() {
+      return self.origDate.getUTCMonth();
+    };
 
-  self.getUTCSeconds = function() {
-    return self.origDate.getUTCSeconds();
-  };
+    self.getUTCDate = function() {
+      return self.origDate.getUTCDate();
+    };
 
-  self.getDay = function() {
-    return self.date.getDay();
-  };
+    self.getUTCHours = function() {
+      return self.origDate.getUTCHours();
+    };
 
-  //hide all methods not implemented in this mock that the Date prototype exposes
-  var unimplementedMethods = ['getMilliseconds', 'getUTCDay',
-      'getUTCMilliseconds', 'getYear', 'setDate', 'setFullYear', 'setHours', 'setMilliseconds',
-      'setMinutes', 'setMonth', 'setSeconds', 'setTime', 'setUTCDate', 'setUTCFullYear',
-      'setUTCHours', 'setUTCMilliseconds', 'setUTCMinutes', 'setUTCMonth', 'setUTCSeconds',
-      'setYear', 'toDateString', 'toJSON', 'toGMTString', 'toLocaleFormat', 'toLocaleString',
-      'toLocaleTimeString', 'toSource', 'toString', 'toTimeString', 'toUTCString', 'valueOf'];
-
-  angular.forEach(unimplementedMethods, function(methodName) {
-    self[methodName] = function() {
-      throw Error("Method '" + methodName + "' is not implemented in the TzDate mock");
+    self.getUTCMinutes = function() {
+      return self.origDate.getUTCMinutes();
     };
-  });
 
-  return self;
-};
+    self.getUTCSeconds = function() {
+      return self.origDate.getUTCSeconds();
+    };
+
+    self.getUTCMilliseconds = function() {
+      return self.origDate.getUTCMilliseconds();
+    };
+
+    self.getDay = function() {
+      return self.date.getDay();
+    };
+
+    //hide all methods not implemented in this mock that the Date prototype exposes
+    var unimplementedMethods = ['getMilliseconds', 'getUTCDay',
+        'getYear', 'setDate', 'setFullYear', 'setHours', 'setMilliseconds',
+        'setMinutes', 'setMonth', 'setSeconds', 'setTime', 'setUTCDate', 'setUTCFullYear',
+        'setUTCHours', 'setUTCMilliseconds', 'setUTCMinutes', 'setUTCMonth', 'setUTCSeconds',
+        'setYear', 'toDateString', 'toJSON', 'toGMTString', 'toLocaleFormat', 'toLocaleString',
+        'toLocaleTimeString', 'toSource', 'toString', 'toTimeString', 'toUTCString', 'valueOf'];
+
+    angular.forEach(unimplementedMethods, function(methodName) {
+      self[methodName] = function() {
+        throw Error("Method '" + methodName + "' is not implemented in the TzDate mock");
+      };
+    });
+
+    return self;
+  };
 
-//make "tzDateInstance instanceof Date" return true
-angular.mock.TzDate.prototype = Date.prototype;
+  //make "tzDateInstance instanceof Date" return true
+  angular.mock.TzDate.prototype = Date.prototype;
+})();
 
 
 /**