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angular-cookies.js
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angular-cookies.js
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/**
* @license AngularJS v1.2.0-280edf4
* (c) 2010-2012 Google, Inc. http://angularjs.org
* License: MIT
*/
(function(window, angular, undefined) {'use strict';
/**
* @ngdoc overview
* @name ngCookies
* @description
*
* # ngCookies
*
* Provides the {@link ngCookies.$cookies `$cookies`} and
* {@link ngCookies.$cookieStore `$cookieStore`} services.
*
* {@installModule cookies}
*
* See {@link ngCookies.$cookies `$cookies`} and
* {@link ngCookies.$cookieStore `$cookieStore`} for usage.
*/
angular.module('ngCookies', ['ng']).
/**
* @ngdoc object
* @name ngCookies.$cookies
* @requires $browser
*
* @description
* Provides read/write access to browser's cookies.
*
* Only a simple Object is exposed and by adding or removing properties to/from
* this object, new cookies are created/deleted at the end of current $eval.
*
* Requires the {@link ngCookies `ngCookies`} module to be installed.
*
* @example
<doc:example>
<doc:source>
<script>
function ExampleController($cookies) {
// Retrieving a cookie
var favoriteCookie = $cookies.myFavorite;
// Setting a cookie
$cookies.myFavorite = 'oatmeal';
}
</script>
</doc:source>
</doc:example>
*/
factory('$cookies', ['$rootScope', '$browser', function ($rootScope, $browser) {
var cookies = {},
lastCookies = {},
lastBrowserCookies,
runEval = false,
copy = angular.copy,
isUndefined = angular.isUndefined;
//creates a poller fn that copies all cookies from the $browser to service & inits the service
$browser.addPollFn(function() {
var currentCookies = $browser.cookies();
if (lastBrowserCookies != currentCookies) { //relies on browser.cookies() impl
lastBrowserCookies = currentCookies;
copy(currentCookies, lastCookies);
copy(currentCookies, cookies);
if (runEval) $rootScope.$apply();
}
})();
runEval = true;
//at the end of each eval, push cookies
//TODO: this should happen before the "delayed" watches fire, because if some cookies are not
// strings or browser refuses to store some cookies, we update the model in the push fn.
$rootScope.$watch(push);
return cookies;
/**
* Pushes all the cookies from the service to the browser and verifies if all cookies were stored.
*/
function push() {
var name,
value,
browserCookies,
updated;
//delete any cookies deleted in $cookies
for (name in lastCookies) {
if (isUndefined(cookies[name])) {
$browser.cookies(name, undefined);
}
}
//update all cookies updated in $cookies
for(name in cookies) {
value = cookies[name];
if (!angular.isString(value)) {
if (angular.isDefined(lastCookies[name])) {
cookies[name] = lastCookies[name];
} else {
delete cookies[name];
}
} else if (value !== lastCookies[name]) {
$browser.cookies(name, value);
updated = true;
}
}
//verify what was actually stored
if (updated){
updated = false;
browserCookies = $browser.cookies();
for (name in cookies) {
if (cookies[name] !== browserCookies[name]) {
//delete or reset all cookies that the browser dropped from $cookies
if (isUndefined(browserCookies[name])) {
delete cookies[name];
} else {
cookies[name] = browserCookies[name];
}
updated = true;
}
}
}
}
}]).
/**
* @ngdoc object
* @name ngCookies.$cookieStore
* @requires $cookies
*
* @description
* Provides a key-value (string-object) storage, that is backed by session cookies.
* Objects put or retrieved from this storage are automatically serialized or
* deserialized by angular's toJson/fromJson.
*
* Requires the {@link ngCookies `ngCookies`} module to be installed.
*
* @example
*/
factory('$cookieStore', ['$cookies', function($cookies) {
return {
/**
* @ngdoc method
* @name ngCookies.$cookieStore#get
* @methodOf ngCookies.$cookieStore
*
* @description
* Returns the value of given cookie key
*
* @param {string} key Id to use for lookup.
* @returns {Object} Deserialized cookie value.
*/
get: function(key) {
var value = $cookies[key];
return value ? angular.fromJson(value) : value;
},
/**
* @ngdoc method
* @name ngCookies.$cookieStore#put
* @methodOf ngCookies.$cookieStore
*
* @description
* Sets a value for given cookie key
*
* @param {string} key Id for the `value`.
* @param {Object} value Value to be stored.
*/
put: function(key, value) {
$cookies[key] = angular.toJson(value);
},
/**
* @ngdoc method
* @name ngCookies.$cookieStore#remove
* @methodOf ngCookies.$cookieStore
*
* @description
* Remove given cookie
*
* @param {string} key Id of the key-value pair to delete.
*/
remove: function(key) {
delete $cookies[key];
}
};
}]);
})(window, window.angular);