$.prototype.extend({
  splitletter: function () {
    this.each(function (i, e) {
      if ($(e).hasclass('split')) {
        return;
      }
      
      var textwrapper = $(e)[0];
      textwrapper.innerhtml = textwrapper.textcontent.replace(/./g, "<span class='letter'>$&</span>");
      $(e).addclass('split');
    });
    return this;
  }
});

function isie() {
  return !!window.activexobject || "activexobject" in window;
}

function iswx() {
  //window.navigator.useragent属性包含了浏览器类型、版本、操作系统类型、浏览器引擎类型等信息，这个属性可以用来判断浏览器类型
  var ua = window.navigator.useragent.tolowercase();
  //通过正则表达式匹配ua中是否含有micromessenger字符串
  return ua.match(/micromessenger/i) == 'micromessenger';
}

$(function () {
  
  if (isie()) {
    $('body').addclass('ie');
  }
  if (iswx()) {
    $('body').addclass('wx');
    
    $('.btn-vid-play').click(function(){
      $('.banner video')[0].play();
      $('.banner video')[0].controls = true;
      $('.btn-vid-play').hide();
    })
  }
  
  $('.right-nav')[0].addeventlistener('mouseenter', function () {
    $('body').removeclass('search-active lang-active').addclass('menu-active');
  }, {
    passive: true
  });
  
  $('.site-header')[0].addeventlistener('mouseleave', function (e) {
    if(window.innerwidth<=960){
      return;
    }
    if ($(e.target).hasclass('site-header')) {
      $('body').removeclass('menu-active');
      $('.link-col').removeclass('active');
    }
  }, {
    passive: true
  });
  
  
  $('.right-nav-mobile').click(function () {
    $('body').toggleclass('menu-active');
    
    if ($('body').hasclass('menu-active')) {
      window.mobilenavswiper && window.mobilenavswiper.update();
    }
  });
  
  $('.link-col').mouseenter(function () {
    var index = $(this).index();
    
    $('.link-col:nth-of-type(' + (index + 1) + ')').addclass('active').siblings().removeclass('active');
    
    //frombigswitch = true;
    //$('.site-menu .link-col:eq('+index+') a:eq(0)').trigger('mouseenter');
  })
  
  $('.btn-search').click(function (e) {
    e.stoppropagation();
    $('body').removeclass('menu-active lang-active').toggleclass('search-active');
  });
  
  $('.btn-lang').click(function () {
    $('body').removeclass('menu-active search-active').toggleclass('lang-active');
  });
  
  //取消搜索显示
  $('body').click(function (e) {
    if ($(e.target).is('li.next')) {
      return;
    }
    if (!$(e.target).hasclass('search-ctn') && !$(e.target).parents('.search-ctn').length) {
      $('body').removeclass('search-active');
    }
    if (!$(e.target).hasclass('btn-lang') && !$(e.target).parents('.btn-lang').length) {
      $('body').removeclass('lang-active');
    }
  });
  
  //移动端导航
  
  window.mobilenavswiper = new swiper('.mobile-nav-swiper', {
    allowtouchmove: false,
    slidesperview: 1,
    autoheight: true,
    speed: 600
  });
  
  $('.mobile-nav-swiper a').click(function (e) {
    var indexes = $(this).attr('data-index') || $(this).parent().attr('data-index');
    if (!indexes) {
      return;
    }
    e.preventdefault();
    var indexparts = indexes.split('-');
    
    //var lastindex = indexparts[indexparts.length - 1];
    var screen = $('.screen' + (indexparts.length + 1));
    screen.find('[data-parent-index]').hide();
    screen.find('[data-parent-index="' + indexes + '"]').show();
    
    mobilenavswiper.slideto(indexparts.length);
  });
  
  $('.mobile-nav-swiper .btn-back').click(function () {
    mobilenavswiper.slideprev();
  });
  
  $('a.block-title').each(function (i, e) {
    if (!$(e).siblings('a, .block-links').length) {
      $(e).parents('.block:not(.disabled)').addclass('link-box');
    }
  })
  
  $('.btn-to-top').click(function () {
    $('html, body').animate({
      scrolltop: 0
    }, 800)
  });
  
  
  if(navigator.useragent.indexof('ipad') > -1){
  
  }
  $(window).scroll(function () {
    if (document.documentelement.scrolltop || document.body.scrolltop || window.pageyoffset) {
      $('body').addclass('scrolled');
    } else {
      $('body').removeclass('scrolled');
    }
  });
  
})