1 files changed, 94 insertions, 0 deletions
diff --git a/src/ng/cookies.js b/src/ng/cookies.js
new file mode 100644
index 00000000..cd953eb1
--- /dev/null
+++ b/src/ng/cookies.js
@@ -0,0 +1,94 @@
+'use strict';
+
+/**
+ * @ngdoc object
+ * @name angular.module.ng.$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.
+ *
+ * @example
+ */
+function $CookiesProvider() {
+  this.$get = ['$rootScope', '$browser', function ($rootScope, $browser) {
+    var cookies = {},
+        lastCookies = {},
+        lastBrowserCookies,
+        runEval = false;
+
+    //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 (!isString(value)) {
+          if (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;
+          }
+        }
+      }
+    }
+  }];
+}