54 lines
1.2 KiB
JavaScript
54 lines
1.2 KiB
JavaScript
import React, { Component } from 'react'
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import { Avatar } from 'antd'
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import { isEqual } from 'lodash'
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import { PreviewFileBase64 } from 'util/file'
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const getSrc = async id => {
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if (id) {
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const base64 = await PreviewFileBase64(id)
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return base64
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}
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return ''
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}
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export default class Image extends Component {
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state = {
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src: '',
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}
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id = ''
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constructor(props) {
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super(props)
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this.setSrc()
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}
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shouldComponentUpdate(props, state) {
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// props变更或state.src变更时进行渲染
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return !isEqual(this.props, props) || this.state.src !== state.src
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}
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componentDidUpdate() {
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if (this.id !== this.props.id && this.props.id) {
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this.setSrc()
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}
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}
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setSrc = async () => {
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if (this.props.id) {
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this.id = this.props.id
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const src = await getSrc(this.id)
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this.setState({ src })
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}
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}
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render() {
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if (this.props.type === 'avatar') {
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return <Avatar src={this.state.src} {...this.props} />
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} else {
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return <img src={this.state.src} {...this.props} alt="" />
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}
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}
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}
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