//-------------------- 菜单事件------------------//
//2017-6-5/lly
$(function () {
    // menu subtitle
    var pathname = location.pathname;
    if (pathname && !pathname.match('/index') && pathname !== '/') {
        var subTitle = $('#menuSubTitle');
        subTitle.text($('head title').text())
        subTitle.css({opacity: 0});
    }



    $('.hamburger-module').click(function () {
        $('body').toggleClass('menu-open');
        if ($('.menu-open').length == 1) {
            $('.container').css('position', 'fixed');
            $('.container').click(function () {
                $('.cycle-prev').off('click');
                $('body').removeClass('menu-open');
                $('.container').css('position', '');
            });
        }
        if ($('.menu-open').length == 0) {
            $('.container').css('position', '');
        }
    });

    $('.menu-down-li').find('a').click(function () {
        $(this).next($('.main-li-menu')).slideToggle();
    })
})

//----------------nav滚动事件------------------//
//2017-6-5/lly
$(window).scroll(function () {
    var before = $(window).scrollTop();
    $(window).unbind('scroll').scroll(function () {
        var after = $(window).scrollTop();
        if (before < after) {
            $('.top-nav').css('position', 'absolute');
            // $('.banner-drown-icon').hide(); //banner图上向下图标
            before = after;
        }
        ;
        if (before > after) {
            $('.top-nav').css({
                'position': 'fixed',
                'background': 'rgba(255,255,255,0.7)'
            });
            before = after;
        }
        ;
        var scWidth = window.screen.width;
        if (before == 0) {
            $('.top-nav').css({
                'background': 'none'
            });
            // if (scWidth > 768) $('.banner-drown-icon').show();
        }
    });
});


//------------------ nav滚动事件------------------//
//2017-6-5/lly
$(function () {
    $(".look-detail").click(function () {
        $(this).parents('.item-li').next().slideToggle();
    })
})

//-----------------移动端把文字排在图片后面------------------//
//2017-6-5/ch
$(function () {

    var changePosition = function () { //移动端 是把文字排在图片后面
        var $imgBox = $(".banner-img-box");
        if ($(window).width() > 768) {
            $imgBox.each(function () {
                var index = $(this).parents(".au-banner-box").index();
                var $sib = $(this).siblings(".banner-text-box");
                if (index % 2 == 0) {
                    $(this).after($sib);
                } else {
                    $(this).before($sib);
                }
            })
            return;
        }
        ;
        $imgBox.each(function () {
            var $prev = $(this).prev();
            if ($prev.length == 0) return true;
            $prev.before($(this));
        })
    }
    changePosition(); //初始化时调用
    $(window).resize(function () { //窗口变化时调用
        changePosition();
    })

});

//--------------------采购服务页面图片切换------------------//
//2017-6-7/ch
$(function () {
    var $row = $(".slide-18-box>.slide-item");
    $(".switch-button").on("click", function () {
        var index = $(this).index();
        $(this).css('background', '#333');
        $(this).siblings().css('background', '#c1c1c1');
        if (index == 1) {
            $row.eq(0).css("margin-left", "-100%");
        } else {
            $row.eq(0).css("margin-left", "0px");
        }

    })
})


//----------------发展历程页面效果------------------//
//2017-6-7/ch

/*索引事件 绑定*/
$(function () {
    var $a = $(".slide-box>a"), //锚点集合
        $imgBox = $(".course-img-box"),
        $slideBox = $("#slide-box");

    if ($("#slide-box").length === 0) return;

    sHeight = $("#slide-box")[0].offsetHeight,
        $parent = $("#course-all-box"),
        jTop = $("#slide-box")[0].offsetHeight - $(window).height() / 2, //记录索引div 初始化时距离窗口顶部的距离

        $(window).unbind('scroll').scroll(function () {

            // var cHeight = $slideBox.offset().top;
            var wHeight = $(window).height();
            var containerHeight = $('#history-container').height();
            var top = $("body").scrollTop() || $("html").scrollTop(); //记录body的scrolltop
            var footerHeight = document.querySelector('.footer').clientHeight;

            // var tFlag = (cHeight - top + sHeight / 2) < wHeight / 2; //判断是否固定定位
            // var pTop = $parent.offset().top + $parent[0].offsetHeight - top; //历程容器底部 距离窗口顶部的距离
            var fixedTop = 100-(top/containerHeight)*100;
            $slideBox.css({top:fixedTop+'%'});
            /*if (pTop < (sHeight / 2 + wHeight / 2)) { //索引整块 的位置判断

                $slideBox.css({
                    "position": "fixed",
                    "bottom": 0,
                    top: "20%"
                });

            } else if (tFlag) {

                $slideBox.css({
                    "position": "fixed",
                    "top": '20%',
                    bottom: "auto"
                });

            } else if (top <= jTop) {
                $slideBox.css({
                    "position": "fixed",
                    "bottom": "auto",
                    top: "20%"
                });

            } else if (pTop > (sHeight / 2 + wHeight / 2)) {
                $slideBox.css({
                    "position": "fixed",
                    "top": 'wHeight / 2 - sHeight / 2 + "px"',
                    bottom: "auto"
                });

            }*/

            $imgBox.each(function (index) {

                //判断 图片盒子的位子来 年份横杆 的过度效果变化
                var offsetT = $(this).offset().top;
                var tHeight = $(this).height();
                if (offsetT - top < wHeight / 2) { //判断 图片盒子的位子来

                    $a.eq(index).addClass("active").siblings(".active").removeClass(
                        "active");
                }

                /*当图片从底部出现时 动画效果*/
                if (offsetT - top > wHeight) {
                    $(this).addClass("slide-up").removeClass("active");
                } else if (offsetT - top + tHeight > 0 && offsetT - top < wHeight) {

                    $(this).addClass("active");
                }
            });
        });

    /*点击索引时 滑动到相依年份图片*/
    $a.on("click", function (e) {
        var index = $(this).index();
        var $active = $imgBox.eq(index);
        var offsetT = $active.offset().top;
        var wHeight = $(window).height();
        $("body,html").stop().animate({
            "scrollTop": offsetT - wHeight / 2 + 5
        }, 750);
    });


})