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Diffstat (limited to 'src/service/cookies.js')
| -rw-r--r-- | src/service/cookies.js | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/src/service/cookies.js b/src/service/cookies.js new file mode 100644 index 00000000..082b73ab --- /dev/null +++ b/src/service/cookies.js @@ -0,0 +1,89 @@ +/** + * @workInProgress + * @ngdoc service + * @name angular.service.$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 $eval. + * + * @example + */ +angularServiceInject('$cookies', function($browser) { + var rootScope = this, + cookies = {}, + lastCookies = {}, + lastBrowserCookies; + + //creates a poller fn that copies all cookies from the $browser to service & inits the service + $browser.addPollFn(function() { + var currentCookies = $browser.cookies(); + if (lastBrowserCookies != currentCookies) { //relies on browser.cookies() impl + lastBrowserCookies = currentCookies; + copy(currentCookies, lastCookies); + copy(currentCookies, cookies); + rootScope.$eval(); + } + })(); + + //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. + this.$onEval(PRIORITY_LAST, 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 $cookies + if (isUndefined(browserCookies[name])) { + delete cookies[name]; + } else { + cookies[name] = browserCookies[name]; + } + updated = true; + } + } + } + } +}, ['$browser']); |
