换肤功能的实现以及监听storage实现多个标签页一起换肤

1:需求:项目的侧边栏实现换肤功能,核心代码:

updateSkin (val) {
  const existSkinLink = document.head.querySelector('link[id="sidebar"]')
  if (existSkinLink) {
    existSkinLink.setAttribute('href', `//static.zhaopin.com/newcrm/static/skin/${val}02.css`)
  } else {
    const skinLink = document.createElement('link')
    skinLink.setAttribute('id', 'sidebar')
    skinLink.setAttribute('href', `//static.zhaopin.com/newcrm/static/skin/${val}02.css`)
    skinLink.setAttribute('rel', `stylesheet`)
    document.head.appendChild(skinLink)
  }
}

注意 此处必须引用css 不能是styl sass less 等

2:需求:打个多个标签页后,A标签换肤后,B标签不会自动换肤,要刷新才行

实现思路:监听storage

核心代码:

1:在mounted钩子里增加监听,在destroyed钩子里销毁

mounted () {
    window.addEventListener('storage', this.toUpdateSkin)
},
destroyed () {
    window.removeEventListener('scroll', this.scrollAction)
    window.removeEventListener("storage", this.toUpdateSkin)
},

2:有A、B两个标签页,在A标签页点击切换皮肤的按钮后,走的是方法1changeSkin,在changeSkin里做了些业务操作,可忽略,关键代码localStorage.setItem(${env}${empId}cmpSkin, colorBg) 修改localStorage,然后调用方法3 this.updateSkin(colorBg)实现A标签页换肤

在B标签页监听到localStorage改变之后,自动执行方法2toUpdateSkin经过一些业务代码后调用方法3this.updateSkin(colorBg)实现B标签页换肤

方法1
async changeSkin (colorBg) {
  if (this.menuSkinColor === colorBg) {
    return
  }
  const key = 'colorBg'
  const url = this.api.myCustomer.saveSettings
  const type = 1
  const params = {
    column: 'emp_query_json',
    type,
    json: {
      [key]: colorBg,
    }
  }
  try {
    this.$http.post(url, params)
    const empId = Common.getCookie('ZPSSO_USER_EMPID')
    const env = process.env.NODE_ENV
    localStorage.setItem(`${env}${empId}cmpSkin`, colorBg)
    this.setLeftLoading(true)
    this.menuSkinColor = colorBg
    await this.getLeftMenuData()
    this.$nextTick(() => {
      setTimeout(() => {
        this.setLeftLoading(false)
        this.updateSkin(colorBg)
      }, 0)
    })
  } catch (e) {
    this.common.handleError(e, this)
  }
},
方法2
async toUpdateSkin (e) {
  const empId = Common.getCookie('ZPSSO_USER_EMPID')
  const env = process.env.NODE_ENV
  if (e && e.key === `${env}${empId}cmpSkin`) {
    const arr = ['blackBg', 'grayBg']
    let color = ''
    if (arr.includes(e.newValue) && arr.includes(e.oldValue) && e.oldValue !== e.newValue) {
      color = e.newValue
    } else {
      color = 'blackBg'
    }
    this.setLeftLoading(true)
    this.menuSkinColor = color
    await this.getLeftMenuData()
    this.$nextTick(() => {
      setTimeout(() => {
        this.setLeftLoading(false)
        this.updateSkin(color)
      }, 0)
    })
  }
},
方法3
updateSkin (val) {
  const existSkinLink = document.head.querySelector('link[id="sidebar"]')
  if (existSkinLink) {
    existSkinLink.setAttribute('href', `//static.zhaopin.com/newcrm/static/skin/${val}02.css`)
  } else {
    const skinLink = document.createElement('link')
    skinLink.setAttribute('id', 'sidebar')
    skinLink.setAttribute('href', `//static.zhaopin.com/newcrm/static/skin/${val}02.css`)
    skinLink.setAttribute('rel', `stylesheet`)
    document.head.appendChild(skinLink)
  }
},

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转载自www.cnblogs.com/yangAL/p/10524702.html