"use strict";

$(function () {
  var windowWidth = $(window).width(); // 页面滚动偏移

  var offset = 0; // pc端

  if (windowWidth > 768) {
    offset = getScrollOffset('.navbar'); // 导航菜单展开折叠

    collapseToggle('[data-collapse-toggle="category"]', 'click', function (result) {
      var bindEl = result.bindEl,
          parent = result.parent,
          height = result.height,
          isCollapse = result.isCollapse;
      var text = isCollapse ? '展开' : '收起';
      var lineHeight = height - 32;
      bindEl.children('.icon').toggleClass('arrowup');
      bindEl.children('span').text(text);
      parent.children('.name').children('em').height(lineHeight);
    }); // 可折叠楼层

    makeFloorList({
      root: '.floor',
      // 根节点元素
      collapse: '.article',
      //可折叠元素
      item: '.section',
      // 子元素
      touch: '.more-btn',
      // 事件绑定元素
      size: 6,
      // 每页最多显示的子元素个数
      col: 3,
      // 每列最多显示的子元素个数
      minHeight: $('.floor').find('.section').height() + 24,
      // 单个子元素的高度
      // 展开时的回调
      open: function open(floor) {
        if (floor.current === floor.step) {
          floor.$floor.find('.more span').text('收起全部');
          floor.$floor.find('.more .icon').addClass('arrowup');
        }
      },
      // 收起时的回调
      close: function close(floor) {
        floor.$floor.find('.more span').text('查看更多');
        floor.$floor.find('.more .icon').removeClass('arrowup');
      }
    });
  } else {
    // 移动端
    offset = getScrollOffset(['.navbar', '.category']);
    stickyResponse('#category', getScrollOffset('.banner'), function (e) {
      if (e.sticky) {
        $('#category-list').addClass('fixed');
      } else {
        $('#category-list').removeClass('fixed');
      }
    });
  } // 生成导航


  makeNavigate('.floor h2', '.navigate');
  makeNavigate('.floor h2', '#category-list'); // 楼层滚动

  bindCategory('.navigate li,.category-list li', '.floor', offset, function (index) {
    activeCategory('.navigate li, .category-list li', index);
  }); // 页面滚动

  $('.navigate').hide();
  pageScrollObserve('.floor', offset, function (el, index) {
    if (index > -1) {
      windowWidth > 768 && $('.navigate').fadeIn();
      activeCategory('.navigate li, .category-list li', index);
    } else {
      windowWidth > 768 && $('.navigate').fadeOut();
    }
  });
});