twong329/view/xcx/components/navbar/index.js

var app = getApp()

Component({
  properties: {
    parameter: {
      type: Object,
      value: {
        class: '0'
      }
    },
    logoUrl: {
      type: String,
      value: ''
    }
  },

  data: {
    navH: ''
  },

  ready: function () {
    this.setClass()
    var pages = getCurrentPages()
    if (pages.length <= 1)
      this.setData({
        'parameter.return': 0
      })
  },

  attached: function () {
    this.setData({
      navH: app.globalData.navHeight
    })
  },

  methods: {
    return: function () {
      wx.navigateBack({
        delta: 1
      })
      // var pages = getCurrentPages();
      // wx.navigateBack({
      //   delta: pages.length-2
      // });
    },

    setGoodsSearch: function () {
      wx.navigateTo({
        url: '/pages/goods_search/index'
      })
    },

    setClass: function () {
      var color = ''
      switch (this.data.parameter.class) {
        case '0':
        case 'on':
          color = 'on'
          break
        case '1':
        case 'black':
          color = 'black'
          break
        case '2':
        case 'gray':
          color = 'gray'
          break
        case '3':
        case 'red':
          color = 'red'
          break
        case '4':
        case 'gradual01':
          color = 'gradual01'
          break
        case '5':
        case 'gradual02':
          color = 'gradual02'
          break
        default:
          break
      }
      this.setData({
        'parameter.class': color
      })
    }
  }
})