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listenpage

v1.0.5

Published

listenpage 用于监听window窗口是否是顶层窗口,监听窗口切换的方法

Downloads

6

Readme

listenpage 使用说明

listenpage 用于监听window窗口是否是顶层窗口,监听窗口切换的方法

安装

npm i listenpage

使用

我们可以将方法挂载在全局的对象下

import listen_page from 'listenpage'
window.reload = listen_page
reload().change()  // 基本用法

参数

reload可以接收一个对象参数

  • 【可选】href: 表示当前window.location.href
  • 【可选】time: 表示change中onload方法防抖时间
  • 【可选】addFocus: 表示是否在window.onfocus 时候是否挂载change中的onload方法
  • 【可选】addBlur: 表示window.onblur是否是否挂载change中的onclose方法

change可以接受一个对象参数

  • 【可选】onload: function 页面置于顶层|focus时候触发
  • 【可选】onclose: function 页面置于隐藏|blur是否触发

同时这个对象是一个方法能链式调用 focus() blur() 效果同addFocus addBlur 方法优先级高于reload中配置

reload({href: window.location.href, time: 1000}).change({
  onload() {
    console.log('this is a page onload function')
  },
  onclose() {
    console.log('this is a page onclose function')
  }
}).focus().blur()

原理

document.visibilityState 属性判断窗口是否属于顶层

监听 document.addEventListener('visibilitychange', function(){...}, false)