Light12306/Web12306/js/account/keepalive.js

define(function (require, exports, module) {
	var ajax = require("../platform/webRequest.js");
	var interval = 1 * 60 * 1000;
	var timer = null;
	var started = false;

	var checkUser = function () {
		timer = null;
		ajax.sendPost("login/checkUser", "login/init", null, "json", function () {
			var m = this.model;

			if (!m || !m.status) {
				if (started)
					timer = setTimeout(checkUser, interval);
			}
			else if (!m.data || !m.data.flag) {
				//登录无效
				document.dispatchEvent(new CustomEvent("loginInvalid"));
			}
			else {
				ajax.userAtts = m.data.attributes;
				if (started)
					timer = setTimeout(checkUser, interval);
			}
		}, function () {
			if (started)
				timer = setTimeout(checkUser, interval);
		});
	};

	//
	exports.start = function () {
		started = true;
		if (!timer)
			checkUser();
		return true;
	};

	exports.stop = function () {
		started = false;
		if (timer)
			clearTimeout(timer);
		return true;
	};
});