npmchenwei111/app/common/views/StaticContainer.js

test1111

/**
 * Created by chenwei on 2017/8/8.
 */
'use strict'

import React, { Component } from 'react'

/**
 * 实现最简单的StaticContainer，控制子视图是否更新
 */
class StaticContainer extends Component {

  static defaultProps: {
    shouldUpdate: undefined,
    observeData: undefined
  }

  constructor (props) {
    super(props)

    console.log('StaticContainer', this.props)
  }

  shouldComponentUpdate (nextProps) {

    if (typeof nextProps.shouldUpdate === 'function') {
      return nextProps.shouldUpdate(this.props.observeData, nextProps.observeData)
    }
    if (typeof nextProps.shouldUpdate === undefined && this.props.observeData && nextProps.observeData) {
      return JSON.stringify(nextProps.observeData) !== JSON.stringify(this.props.observeData)
    }
    return !!nextProps.shouldUpdate
  }

  render () {

    console.log('StaticContainer', 'render')

    return this.props.children
  }
}

export default StaticContainer