Adding cookie service

  - Browser.cookies()
  - MockBrowser
  - $cookie service
  - $sessionStore

3 files changed, 115 insertions, 0 deletions

diff --git a/src/AngularPublic.js b/src/AngularPublic.js
index 7b093f88..e9f20b59 100644
--- a/src/AngularPublic.js
+++ b/src/AngularPublic.js
@@ -6,6 +6,7 @@ angularService('$browser', function browserFactory(){
         jqLite(window.document),
         jqLite(window.document.getElementsByTagName('head')[0]));
     browserSingleton.startUrlWatcher();
+    browserSingleton.startCookieWatcher();
     browserSingleton.bind();
   }
   return browserSingleton;
diff --git a/src/Browser.js b/src/Browser.js
index 46ac2bb0..0dacf3c4 100644
--- a/src/Browser.js
+++ b/src/Browser.js
@@ -22,8 +22,50 @@ function Browser(location, document, head) {
 
   this.location = location;
   this.document = document;
+  var rawDocument = document[0];
   this.head = head;
   this.idCounter = 0;
+
+  this.cookies = cookies;
+  this.watchCookies = function(fn){ cookieListeners.push(fn); };
+
+  // functions
+  var lastCookies = {};
+  var lastCookieString = '';
+  var cookieListeners = [];
+  /**
+   * cookies() -> hash of all cookies
+   * cookies(name, value) -> set name to value
+   *   if value is undefined delete it
+   * cookies(name) -> should get value, but deletes (no one calls it right now that way)
+   */
+  function cookies(name, value){
+    if (name) {
+      if (value === _undefined) {
+        delete lastCookies[name];
+        rawDocument.cookie = escape(name) + "=;expires=Thu, 01 Jan 1970 00:00:00 GMT";
+      } else {
+        rawDocument.cookie = escape(name) + '=' + escape(lastCookies[name] = ''+value);
+      }
+    } else {
+      if (rawDocument.cookie !== lastCookieString) {
+        lastCookieString = rawDocument.cookie;
+        var cookieArray = lastCookieString.split("; ");
+        lastCookies = {};
+
+        for (var i = 0; i < cookieArray.length; i++) {
+          var keyValue = cookieArray[i].split("=");
+          if (keyValue.length === 2) { //ignore nameless cookies
+            lastCookies[unescape(keyValue[0])] = unescape(keyValue[1]);
+          }
+        }
+        foreach(cookieListeners, function(fn){
+          fn(lastCookies);
+        });
+      }
+      return lastCookies;
+    }
+  }
 }
 
 Browser.prototype = {
@@ -132,6 +174,14 @@ Browser.prototype = {
    })();
   },
 
+  startCookieWatcher: function() {
+    var self = this;
+    (function poll() {
+      self.cookies();
+      self.setTimeout(poll, self.delay);
+    })();
+  },
+
   setUrl: function(url) {
    var existingURL = this.location.href;
    if (!existingURL.match(/#/)) existingURL += '#';
diff --git a/src/services.js b/src/services.js
index 19375f39..41f179e9 100644
--- a/src/services.js
+++ b/src/services.js
@@ -392,3 +392,67 @@ angularService('$resource', function($xhr){
   var resource = new ResourceFactory($xhr);
   return bind(resource, resource.route);
 }, {inject: ['$xhr.cache']});
+
+
+angularService('$cookies', function($browser) {
+  var cookies = {}, rootScope = this;
+  $browser.watchCookies(function(newCookies){
+    copy(newCookies, cookies);
+    rootScope.$eval();
+  });
+  this.$onEval(PRIORITY_FIRST, update);
+  this.$onEval(PRIORITY_LAST, update);
+  return cookies;
+
+  function update(){
+    var name, browserCookies = $browser.cookies();
+    for(name in cookies) {
+      if (browserCookies[name] !== cookies[name]) {
+        $browser.cookies(name, browserCookies[name] = cookies[name]);
+      }
+    }
+    for(name in browserCookies) {
+      if (browserCookies[name] !== cookies[name]) {
+        $browser.cookies(name, _undefined);
+        //TODO: write test for this delete
+        //delete cookies[name];
+      }
+    }
+  };
+}, {inject: ['$browser']});
+
+
+angularService('$sessionStore', function($store) {
+
+  function SessionStore() {}
+
+  SessionStore.prototype.get = function(key) {
+    return fromJson($store[key]);
+  };
+
+  SessionStore.prototype.getAll = function() {
+    var all = {},
+        key;
+
+    for (key in $store) {
+      if (!$store.hasOwnProperty(key)) continue;
+      all[key] = fromJson($store[key]);
+    }
+
+    return all;
+  };
+
+
+  SessionStore.prototype.put = function(key, value) {
+    $store[key] = toJson(value);
+  };
+
+
+  SessionStore.prototype.remove = function(key) {
+    delete $store[key];
+  };
+
+
+  return new SessionStore();
+
+}, {inject: ['$cookies']});
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