// 婊氬姩鍒版寚瀹氫綅缃?--begin
function getScrollTop() {
    return (document.scrollingElement && document.scrollingElement.scrollTop) ||
        document.documentElement.scrollTop ||
        document.body.scrollTop;
}

function setScrollTop(st) {
    if (!st) st = 0;
    document.documentElement.scrollTop = document.body.scrollTop = st;
}

function scrollTop(scrollTop, time) {
    scrollTop = scrollTop ? scrollTop : 0;
    time = time ? time : 500;
    const cubic = function (value) {
        return Math.pow(value, 3)
    };
    const easeInOutCubic = function (value) {
        return value < 0.5 ? cubic(value * 2) / 2 : 1 - cubic((1 - value) * 2) / 2
    }
    const beginTime = Date.now();
    const beginValue = getScrollTop();
    const rAF = window.requestAnimationFrame || (function (func) {
        return setTimeout(func, 16)
    });
    const frameFunc = function () {
        if (isNaN(+time) || +time === 0) {
            setScrollTop(scrollTop);
            return;
        }
        const progress = (Date.now() - beginTime) / time;
        if (progress < 1) {
            setScrollTop(
                scrollTop + (beginValue - scrollTop) * (1 - easeInOutCubic(progress))
            );
            rAF(frameFunc);
        } else {
            setScrollTop(scrollTop);
        }
    };
    rAF(frameFunc);
};

/** 鑾峰彇鎸囧畾鍏冪礌璺濈椤甸潰椤堕儴璺濈 */
function getElementToPageTop(el) {
	if(el.parentElement) {
	  return getElementToPageTop(el.parentElement) + el.offsetTop
	}
	return el.offsetTop
}
/** 鑾峰彇鎸囧畾鍏冪礌楂樺害 */
function getElementHeight(el) {
    return el.clientHeight;
}

function playFirstVideo() {
    var videoContain = $($('.index-top-banner .swiper-slide')[0]);
    var curVideo = videoContain.find('video');
    if (curVideo.length) {
        curVideo.trigger('play');
    }
}

// 婊氬姩鍒版寚瀹氫綅缃?--end

// 棣栭〉锛屾粴鍔ㄥ埌鍒扳€滄垜浠兘鍋氫粈涔堟椂鍔ㄧ敾鈥
$(function(){
    var ua = navigator.userAgent;
    var ipad = ua.match(/(iPad).*OS\s([\d_]+)/),
    isIphone =!ipad && ua.match(/(iPhone\sOS)\s([\d_]+)/),
    isAndroid = ua.match(/(Android)\s+([\d.]+)/),
    isMobile = isIphone || isAndroid;
    if(isMobile){
        window.location.replace('/cn/m/');
    }
    
    try {
        var navHeight = getElementHeight(document.getElementsByClassName('top-nav')[0]);
        var top = getElementToPageTop(document.getElementById('weAre'));
        $('.arrow-down').click(function() {
            scrollTop(top - navHeight, 500);
        });
    } catch (error) {
        console.log(error)
    }
    
    //try {
    //    var myIndexTopSwiper = new Swiper('.index-top-banner.swiper-container', {
    //        autoplay: 5000,
    //        autoplayDisableOnInteraction : false,
    //        pagination: '.index-top-banner .swiper-pagination',
    //        nextButton: '.index-top-banner .swiper-button-next',
    //        prevButton: '.index-top-banner .swiper-button-prev',
    //        resize: function() {
    //            //绐楀彛鍙樺寲浜
    //            myIndexTopSwiper.updateSize();
    //        },
    //        onInit: function(swiper){
    //            //playFirstVideo();
    //        },
    //        onSlideChangeEnd: function (swiper){
    //            var videoContain = $($('.index-top-banner .swiper-slide')[this.activeIndex]);
    //            var curVideo = videoContain.find('video');
    //            if (curVideo.length) {
    //                curVideo.trigger('play');
    //            }
    //            //var otherVideo = videoContain.siblings().find('video');
    //            //for (var i = 0; i < otherVideo.length; i++) {
    //            //    if (!!window.ActiveXObject || "ActiveXObject" in window) {
    //            //        return false;
    //            //    } else {
    //            //        otherVideo[i].currentTime = 0;
    //            //        otherVideo.trigger('pause');
    //            //    }
    //            //}
    //        }
    //    });
    //} catch (error) {
    //    console.log(error)
    //}

   
       
   
    
    //try {
    //    function controlVideo() {
    //        var videoContain = $($('.index-top-banner .swiper-slide')[0]);
    //        var videos = videoContain.find('video');
    //        if (videos.length > 0) {
    //            myIndexTopSwiper.stopAutoplay();
    //            videos[0].onended = function(){
    //                myIndexTopSwiper.startAutoplay();
    //                setTimeout(() => {
    //                    myIndexTopSwiper.slideNext()
    //                }, 300);
    //            }
    //        } else {
    //            myIndexTopSwiper.startAutoplay();
    //        }
    //    }
    //    controlVideo();
    //} catch (error) {
    //    console.log(error)
    //}
});