var startPoint = new Date();
var loadStartPoint = new Date();

var loadingShowed = false;

//防止页面后退
history.pushState(null, null, document.URL);
window.addEventListener('popstate', back_common);

function back_common() {
    history.pushState(null, null, document.URL);
}

document.addEventListener('contextmenu', function (e) {
    e.preventDefault();
    return false;
});

document.addEventListener("touchstart", function (e) {
    e.preventDefault();
    e.stopPropagation();
    return false;
}, false);

$(function () {
    $(document).click(function () {
        resetTime();
    });
    jQuery.support.cors = true;

    var commonTimeOut = 10000;
    var longTimeOut = 60000;

    var loadingTimeout = 60000;

    if ($("#loading") != null) {
        window.setInterval(function () {
            if ($("#loading").is(":visible") && !loadingShowed) {
                loadingShowed = true;
                loadStartPoint = new Date;
            }
            if ($("#loading").is(":hidden") && loadingShowed) {
                loadingShowed = false;
            }
        }, 100);
    }

    if (location.href.indexOf("/Home/screensaver") < 0 || location.href.indexOf("/Home/screensaverTwo") >= 0) {
        var interRet = window.setInterval(function () {
            var isNotLoading = $("#loading").is(":hidden");
            if ($("#loading").length > 0 && !isNotLoading) {
                resetTime();
            }

            var curTime = new Date();
            var timeOutVal = commonTimeOut;
            if (location.href.indexOf("/Home/screensaverTwo") >= 0
                || location.href.indexOf("/Home/Preview") >= 0) {
                timeOutVal = longTimeOut;
            }
            if (parseInt(curTime - startPoint) >= timeOutVal) {
                $.post(rootPath + "/Home/StopCheck", null, function (res) {

                });
                window.clearInterval(interRet);
                location.href = rootPath + "/Home/screensaver";
            }

            //设置读取超时
            if (parseInt(curTime - loadStartPoint) >= loadingTimeout && loadingShowed) {
                $.post(rootPath + "/Home/StopCheck", null, function (res) {

                });
                window.clearInterval(interRet);
                location.href = rootPath + "/Home/screensaver";
            }
        }, 1000);
    }
});

function getUrlParam(name) {
    var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)"); //构造一个含有目标参数的正则表达式对象
    var r = window.location.search.substr(1).match(reg);  //匹配目标参数
    if (r != null)
        return unescape(r[2]);
    return null; //返回参数值
}

function resetTime() {
    startPoint = new Date();
}