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61 lines
1.5 KiB
61 lines
1.5 KiB
2 months ago
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// @ts-nocheck
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import {isBrowser} from '../isBrowser'
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class Image {
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currentSrc: string | null = null
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naturalHeight: number = 0
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naturalWidth: number = 0
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width: number = 0
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height: number = 0
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tagName: string = 'IMG'
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path: string = ''
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crossOrigin: string = ''
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referrerPolicy: string = ''
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onload: () => void = () => {}
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onerror: () => void = () => {}
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complete: boolean = false
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constructor() {}
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set src(src: string) {
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console.log('src', src)
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if(!src) {
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return this.onerror()
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}
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src = src.replace(/^@\//,'/')
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this.currentSrc = src
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uni.getImageInfo({
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src,
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success: (res) => {
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const localReg = /^\.|^\/(?=[^\/])/;
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// #ifdef MP-WEIXIN || MP-BAIDU || MP-QQ || MP-TOUTIAO
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res.path = localReg.test(src) ? `/${res.path}` : res.path;
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// #endif
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this.complete = true
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this.path = res.path
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this.naturalWidth = this.width = res.width
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this.naturalHeight = this.height = res.height
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this.onload()
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},
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fail: () => {
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this.onerror()
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}
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})
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}
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get src() {
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return this.currentSrc
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}
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}
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interface UniImage extends WechatMiniprogram.Image {
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complete?: boolean
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naturalHeight?: number
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naturalWidth?: number
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}
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/** 创建用于 canvas 的 img */
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export function createImage(canvas?: any): HTMLImageElement | UniImage {
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if(canvas && canvas.createImage) {
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return (canvas as WechatMiniprogram.Canvas).createImage()
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} else if(this.tagName == 'canvas' && !('toBlob' in this) || canvas && !('toBlob' in canvas)){
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return new Image()
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} else if(isBrowser) {
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return new window.Image()
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}
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return new Image()
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}
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