103 lines
2.6 KiB
Plaintext
103 lines
2.6 KiB
Plaintext
async function loadScript(url) {
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return new Promise(res=>{
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var script = document.createElement('script');
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script.type = 'text/javascript';
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script.src = url;
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// 当脚本加载完成后，执行回调
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script.onload = function() {
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res()
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};
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// 处理旧版浏览器的onreadystatechange事件
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script.onreadystatechange = function() {
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if (this.readyState === 'loaded' || this.readyState === 'complete') {
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script.onload();
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}
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};
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// 将脚本添加到head中，开始加载
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document.head.appendChild(script);
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})
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}
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async function loadScripts(scripts) {
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await (async function loadNextScript(i) {
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if (i < scripts.length) {
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await loadScript(scripts[i]);
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await loadNextScript(i + 1)
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}
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})(0);
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}
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let ocr = window?.paddlejs?.ocr??null;
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let jsFiles = [
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'/static/tmui4xLibs/lib/ocrLib.js'
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];
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const decoderText =async (imgpath:string,callback)=>{
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if(!window?.paddlejs){
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await loadScripts(jsFiles)
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ocr = paddlejs.ocr
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await ocr.init()
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}
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let img = new Image()
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img.src = imgpath
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img.onload = async function(){
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const canvas = document.createElement('canvas')
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canvas.width = 800;
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canvas.height = 800
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const res = await ocr.recognize(img, { canvas });
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let texts = res.text
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let bounds = []
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for(let i=0;i<res.points.length;i++){
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let item = res.points[i]
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bounds.push({
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x:item[0][0],
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y:item[0][1],
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width:item[1][0]-item[0][0],
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height:item[3][1]+item[0][1]
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})
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}
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callback(texts,JSON.stringify(bounds))
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}
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}
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export async function chooseImageBuilder(callback : (str : string[], source : string[]) => void, langs : string | null) {
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uni.chooseImage({
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count: 1,
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success:async (evt : ChooseImageSuccess)=> {
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uni.showLoading({title:'...',mask:true})
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if (evt.tempFilePaths.length > 0) {
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let imgpath = evt.tempFilePaths[0] as string;
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try {
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await decoderText(imgpath,callback)
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} catch (error) {
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console.error(error)
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callback([] as string[],[] as string[])
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}
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}
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uni.hideLoading()
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},
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fail() {
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console.warn("图片选择失败")
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callback([] as string[],[] as string[])
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}
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})
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}
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export async function downloadUrlImageBuilder(url : string, callback : (str : string[], source : string[]) => void, langs : string | null) {
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uni.showLoading({title:'...',mask:true})
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try {
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await decoderText(url,callback)
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} catch (error) {
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console.error(error)
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callback([] as string[],[] as string[])
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}
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uni.hideLoading()
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}
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export async function localFilePathImageBuilder(pathfile : string, callback : (str : string[], source : string[]) => void, langs : string | null) {
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downloadUrlImageBuilder(pathfile,callback)
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} |