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usb package change call style module usb #404

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YovanggaAnandhika wants to merge 4 commits into from
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usb package change call style module usb #404

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3cf2d83
add .idea ignore for Editor
May 20, 2022
5862bb8
change index.js usb require migration v2
May 20, 2022
7e0f3bc
change package.json for usb version
Aug 26, 2022
c26f992
change style call module usb in index.js
Aug 26, 2022
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1 change: 1 addition & 0 deletions .gitignore
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Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@


*.log
.idea/
yarn.lock
package-lock.json

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33 changes: 13 additions & 20 deletions packages/usb/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -2,8 +2,7 @@
const os = require('os');
const util = require('util');
const EventEmitter = require('events');
let usb = null;

let { usb, findByIds, getDeviceList } = require("usb");
/**
* [USB Class Codes ]
* @type {Object}
Expand All @@ -20,19 +19,15 @@ const IFACE_CLASS = {
* [function USB]
* @param {[type]} vid [description]
* @param {[type]} pid [description]
* @return {[type]} [description]
* @return {USB} [description]
*/
function USB(vid, pid){

if (!usb) {
usb = require('usb');
}

EventEmitter.call(this);
var self = this;
let self = this;
this.device = null;
if(vid && pid){
this.device = usb.findByIds(vid, pid);
this.device = findByIds(vid, pid);
}else if(vid){
// Set spesific USB device from devices array as coming from USB.findPrinter() function.
// for example
Expand All @@ -42,15 +37,15 @@ function USB(vid, pid){
// const device = new escpos.USB(Device1); OR device = new escpos.USB(Device2);
this.device = vid;
}else{
var devices = USB.findPrinter();
let devices = USB.findPrinter();
if(devices && devices.length)
this.device = devices[0];
}
if (!this.device)
throw new Error('Can not find printer');

usb.on('detach', function(device){
if(device == self.device) {
if(device === self.device) {
self.emit('detach' , device);
self.emit('disconnect', device);
self.device = null;
Expand All @@ -59,17 +54,14 @@ function USB(vid, pid){

return this;

};
}

/**
* [findPrinter description]
* @return {[type]} [description]
*/
USB.findPrinter = function(){
if (!usb) {
usb = require('usb');
}
return usb.getDeviceList().filter(function(device){
return getDeviceList().filter(function(device){
try{
return device.configDescriptor.interfaces.filter(function(iface){
return iface.filter(function(conf){
Expand Down Expand Up @@ -106,7 +98,7 @@ util.inherits(USB, EventEmitter);
* @return {[type]} [description]
*/
USB.prototype.open = function (callback){
let self = this, counter = 0, index = 0;
let self = this, counter = 0;
this.device.open();
this.device.interfaces.forEach(function(iface){
(function(iface){
Expand All @@ -125,10 +117,10 @@ USB.prototype.open = function (callback){
}
iface.claim(); // must be called before using any endpoints of this interface.
iface.endpoints.filter(function(endpoint){
if(endpoint.direction == 'out' && !self.endpoint) {
if(endpoint.direction === 'out' && !self.endpoint) {
self.endpoint = endpoint;
}
if(endpoint.direction == 'in' && !self.deviceToPcEndpoint) {
if(endpoint.direction === 'in' && !self.deviceToPcEndpoint) {
self.deviceToPcEndpoint = endpoint;
}
});
Expand All @@ -154,6 +146,7 @@ USB.prototype.open = function (callback){
/**
* [function write]
* @param {[type]} data [description]
* @param {[type]} callback
* @return {[type]} [description]
*/
USB.prototype.write = function(data, callback){
Expand All @@ -169,7 +162,7 @@ USB.prototype.write = function(data, callback){
*/
USB.prototype.read = function(callback) {
this.deviceToPcEndpoint.transfer(64, (error,data) => callback(data));

return this;
};

Expand Down
2 changes: 1 addition & 1 deletion packages/usb/package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,7 @@
"test": "echo \"Error: no test specified\" && exit 1"
},
"dependencies": {
"usb": "*"
"usb": "^2.5.0"
},
"keywords": [],
"author": "Lsong <song940@gmail.com> (https://lsong.org)",
Expand Down