@point-of-sale/webusb-receipt-printer/dist/webusb-receipt-printer.esm.js

This is an library that allows you to print to a USB connected receipt printer using WebUSB.

class e{constructor(e){this._events={}}on(e,t){this._events[e]=this._events[e]||[],this._events[e].push(t)}emit(e,...t){let i=this._events[e];i&&i.forEach((e=>{setTimeout((()=>e(...t)),0)}))}}const t=[{filters:[{vendorId:1155,productId:22339}],configuration:1,interface:0,language:"esc-pos",codepageMapping:"default"},{filters:[{vendorId:1046,productId:20497}],configuration:1,interface:0,language:"esc-pos",codepageMapping:"zjiang"},{filters:[{vendorId:1155,productId:22592}],configuration:1,interface:0,language:"esc-pos",codepageMapping:"mpt"},{filters:[{vendorId:1049},{vendorId:5380}],configuration:1,interface:0,language:"esc-pos",codepageMapping:"bixolon"},{filters:[{vendorId:1305}],configuration:1,interface:0,language:e=>{let t="star-line",i=e.productName;switch(i=i.replace(/^Star\s+/i,""),i=i.replace(/^TSP(1|4|6|7|8|10)(13|43)(.*)?$/,((e,t,i,n)=>"TSP"+t+"00"+(n||""))),i=i.replace(/^TSP(55|65)(1|4)(.*)?$/,((e,t,i,n)=>"TSP"+t+"0"+(n||""))),i=i.replace(/^TSP([0-9]+)(II|III|IV|V|VI)?(.*)?$/,((e,t,i)=>"TSP"+t+(i||""))),i){case"TSP100IV":case"mPOP":case"mC-Label3":case"mC-Print3":case"mC-Print2":t="star-prnt";break;case"TSP100":case"TSP100II":case"TSP100III":t="star-graphics";break;case"BSC10":case"BSC10BR":case"BSC10II":t="esc-pos"}return t},codepageMapping:"star"},{filters:[{vendorId:1208}],configuration:1,interface:0,language:"esc-pos",codepageMapping:"epson"},{filters:[{vendorId:7568}],configuration:1,interface:0,language:"esc-pos",codepageMapping:"citizen"},{filters:[{vendorId:1497}],configuration:1,interface:0,language:"esc-pos",codepageMapping:"hp"},{filters:[{vendorId:1221}],configuration:1,interface:0,language:"esc-pos",codepageMapping:"epson"},{filters:[{vendorId:4070,productId:33054}],configuration:1,interface:0,language:"esc-pos",codepageMapping:"epson"},{filters:[{vendorId:8137,productId:8214}],configuration:1,interface:0,language:"esc-pos",codepageMapping:"xprinter"}];class i{}class n extends i{#e;#t=null;#i=null;#n={input:null,output:null};constructor(){super(),this.#e=new e,navigator.usb.addEventListener("disconnect",(e=>{this.#t==e.device&&this.#e.emit("disconnected")}))}async connect(){try{let e=await navigator.usb.requestDevice({filters:t.map((e=>e.filters)).reduce(((e,t)=>e.concat(t)))});e&&await this.#a(e)}catch(e){console.log("Could not connect! "+e)}}async reconnect(e){let t=await navigator.usb.getDevices(),i=t.find((t=>t.serialNumber==e.serialNumber));i||(i=t.find((t=>t.vendorId==e.vendorId&&t.productId==e.productId))),i&&await this.#a(i)}async#a(e){this.#t=e,this.#i=t.find((e=>e.filters.some((e=>e.vendorId&&e.productId?e.vendorId==this.#t.vendorId&&e.productId==this.#t.productId:e.vendorId==this.#t.vendorId)))),await this.#t.open(),await this.#t.selectConfiguration(this.#i.configuration),await this.#t.claimInterface(this.#i.interface);let i=this.#t.configuration.interfaces.find((e=>e.interfaceNumber==this.#i.interface));this.#n.output=i.alternate.endpoints.find((e=>"out"==e.direction)),this.#n.input=i.alternate.endpoints.find((e=>"in"==e.direction)),await this.#t.reset(),this.#e.emit("connected",{type:"usb",manufacturerName:this.#t.manufacturerName,productName:this.#t.productName,serialNumber:this.#t.serialNumber,vendorId:this.#t.vendorId,productId:this.#t.productId,language:await this.#s(this.#i.language),codepageMapping:await this.#s(this.#i.codepageMapping)})}async#s(e){return"function"==typeof e?await e(this.#t):e}async listen(){if(this.#n.input)return this.#c(),!0}async#c(){if(this.#t)try{const e=await this.#t.transferIn(this.#n.input.endpointNumber,64);e instanceof USBInTransferResult&&e.data.byteLength&&this.#e.emit("data",e.data),this.#c()}catch(e){}}async disconnect(){this.#t&&(await this.#t.close(),this.#t=null,this.#i=null,this.#e.emit("disconnected"))}async print(e){if(this.#t&&this.#n.output)try{await this.#t.transferOut(this.#n.output.endpointNumber,e)}catch(e){console.log(e)}}addEventListener(e,t){this.#e.on(e,t)}}export{n as default};
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