@keiser/echip-webusb - npm Package Compare versions

Comparing version 1.1.3 to 1.2.0

index.d.ts

 // Generated by dts-bundle v0.7.3
 
-export default class EChipReaderWatcher extends USBDevice {
+export class EChipReaderWatcher extends USBDevice {
   constructor();
@@ -10,2 +10,4 @@ stop(): void;
 }
+const _default: EChipReaderWatcher;
+export default _default;
 
@@ -12,0 +14,0 @@ export class USBDevice {

index.js

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i{constructor(e){this._opened=!1,this._claimedInterface=null,this.nodeUsbDevice=e,this.deviceClass=e.deviceDescriptor.bDeviceClass,this.deviceSubclass=e.deviceDescriptor.bDeviceSubClass,this.deviceProtocol=e.deviceDescriptor.bDeviceProtocol,this.vendorId=e.deviceDescriptor.idVendor,this.productId=e.deviceDescriptor.idProduct}get configuration(){return this.configurationTransform(this.nodeUsbDevice.configDescriptor)}get configurations(){return this.nodeUsbDevice.allConfigDescriptors.map(e=>this.configurationTransform(e))}get opened(){return this._opened}open(){try{this.nodeUsbDevice.open(),this._opened=!0}catch(e){return Promise.reject(e)}return Promise.resolve()}close(){try{this.nodeUsbDevice.close()}catch(e){return Promise.reject(e)}return Promise.resolve()}async selectConfiguration(e){return new Promise((t,r)=>{this.nodeUsbDevice.setConfiguration(e,e=>{if(e)return r(e);t()})})}async claimInterface(e){try{const t=this.nodeUsbDevice.interfaces.find(t=>t.interfaceNumber===e);if(!t)throw new Error("Interface not found");return t.claim(),this._claimedInterface=t,Promise.resolve()}catch(e){return Promise.reject(e)}}releaseInterface(e){return new Promise((t,r)=>{const n=this.nodeUsbDevice.interfaces.find(t=>t.interfaceNumber===e);if(!n)return r("Interface not found");n.release(e=>{if(e)return r(e);this._claimedInterface=null,t()})})}selectAlternateInterface(e,t){return new Promise((r,n)=>{const i=this.nodeUsbDevice.interfaces.find(t=>t.interfaceNumber===e);if(!i)return n("Interface not found");i.setAltSetting(t,e=>{if(e)return n(e);r()})})}controlTransferIn(e,t){return new Promise((r,n)=>{this.nodeUsbDevice.controlTransfer(this.requestTypeTransform(e.requestType),e.request,e.value,e.index,t,(e,t)=>e?n(e.message):t?void r({data:new DataView(t),status:"ok"}):n("No buffer returned"))})}controlTransferOut(t,r){return new 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r=this.usbDevice.configurations[0].interfaces[0].alternates[u];this.interrupt=r.endpoints[0],this.bulkIn=r.endpoints[1],this.bulkOut=r.endpoints[2]}async claim(){const e=this.usbDevice.configurations[0],t=e.interfaces[0];try{null!==this.usbDevice.configuration&&void 0!==this.usbDevice.configuration&&this.usbDevice.configuration.configurationValue===e.configurationValue||await this.usbDevice.selectConfiguration(e.configurationValue),await this.usbDevice.claimInterface(t.interfaceNumber),await this.usbDevice.selectAlternateInterface(t.interfaceNumber,t.alternates[u].alternateSetting),await this.deviceReset()}catch(e){throw new Error("1-Wire Device interface cannot be claimed.")}return!0}async startSearch(){this.searching||(this.searching=!0,this.awaitKey())}async close(){this.searching=!1;let e=await this.mutex.acquire();try{this.usbDevice.configuration&&this.usbDevice.configuration.interfaces[0]&&await this.usbDevice.releaseInterface(this.usbDevice.configuration.interfaces[0].interfaceNumber)}catch(e){console.log("Close: "+e)}e()}awaitKey(){setTimeout(async()=>{if(this.searching){let e=await this.mutex.acquire();try{await Promise.race([this.keySearch(),f()])}catch(e){console.log("Await: "+e)}e(),this.awaitKey()}},a)}async keySearch(){let e=[];try{let t=await this.romSearch();if(t.result){for(h(t.key)&&e.push(t.key);t.result&&!t.lastDevice;)(t=await t.next()).result&&h(t.key)&&e.push(t.key);this.onDetectKeys(e)}}catch(e){this.deviceReset()}}async deviceStatus(){let e=await this.usbDevice.transferIn(this.interrupt.endpointNumber,32);if(!e.data)throw new Error("1-Wire Device status read error.");return new l(e.data)}async bufferClear(){0!==(await this.deviceStatus()).commCommandBufferStatus&&await this.bufferClear()}async setSpeed(e){const t=e?2:1;if("ok"!==(await this.usbDevice.controlTransferOut({requestType:"vendor",recipient:"device",request:2,value:2,index:t})).status)throw new Error("1-Wire Device set speed failed.")}async reset(){if("ok"!==(await this.usbDevice.controlTransferOut({requestType:"vendor",recipient:"device",request:1,value:3147,index:1})).status)throw new Error("1-Wire Device reset request failed.");await this.bufferClear()}async deviceReset(){if(await this.usbDevice.reset(),"ok"!==(await this.usbDevice.controlTransferOut({requestType:"vendor",recipient:"device",request:0,value:0,index:0})).status)throw new Error("1-Wire Device reset failed.");await this.bufferClear()}async write(e,t=!1){try{if("ok"!==(await this.usbDevice.transferOut(this.bulkIn.endpointNumber,e.buffer)).status)throw new Error;if(await this.usbDevice.controlTransferOut({requestType:"vendor",recipient:"device",request:1,value:4213,index:e.length}),t){let t=0;do{t+=(await this.read(e.length-t)).length}while(t<e.length)}}catch(e){throw new Error("1-Wire Device write failed.")}}async writeBit(e){if("ok"!==(await this.usbDevice.controlTransferOut({requestType:"vendor",recipient:"device",request:1,value:545|e<<3,index:0})).status)throw new Error("1-Wire Device write bit failed.")}async read(e){let t=this.usbDevice.transferIn(this.bulkOut.endpointNumber,e),r=new Promise((e,t)=>setTimeout(()=>t(),c));try{let e=await Promise.race([t,r]);if("ok"!==e.status||!e.data)throw new Error;return new Uint8Array(e.data.buffer,e.data.byteOffset,e.data.byteLength)}catch(e){throw new Error("1-Wire Device read failed.")}}async readBit(){if("ok"!==(await this.usbDevice.controlTransferOut({requestType:"vendor",recipient:"device",request:1,value:41,index:0})).status)throw new Error("1-Wire Device read bit transfer failed.");return(await this.read(1))[0]}async clearByte(){await this.read(1)}async romCommand(e=null,t=!1){let r=e?t?105:85:t?60:204,n=e?e.buffer:new Uint8Array(8).buffer,i=await this.usbDevice.controlTransferOut({requestType:"vendor",recipient:"device",request:1,value:101,index:r});if("ok"!==i.status)throw new Error("1-Wire Device rom transfer failed.");await this.setSpeed(t),i=await this.usbDevice.transferOut(this.bulkIn.endpointNumber,n)}async romMatch(e,t=!1){return this.romCommand(e,t)}async romSearch(e=0){await this.setSpeed(!1),await this.reset(),await this.write(new Uint8Array([240]),!0);let t=await this.romSubSearch({idBitNumber:1,lastZero:0,romByteNumber:0,romByteMask:1,searchResult:!1,idBit:0,cmpIdBit:0,searchDirection:0,romId:new Uint8Array(8),lastDevice:!1,lastDiscrepancy:e});return{result:t.searchResult,key:t.romId,lastDevice:t.lastDevice,next:async()=>this.romSearch(t.lastDiscrepancy)}}async romSubSearch(t){return t.idBit=await this.readBit(),t.cmpIdBit=await 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this.usbDevice.controlTransferOut({requestType:"vendor",recipient:"device",request:1,value:545|e<<3,index:0})).status)throw new Error("1-Wire Device write bit failed.")}async read(e){let t=this.usbDevice.transferIn(this.bulkOut.endpointNumber,e),r=new Promise((e,t)=>setTimeout(()=>t(),c));try{let e=await Promise.race([t,r]);if("ok"!==e.status||!e.data)throw new Error;return new Uint8Array(e.data.buffer,e.data.byteOffset,e.data.byteLength)}catch(e){throw new Error("1-Wire Device read failed.")}}async readBit(){if("ok"!==(await this.usbDevice.controlTransferOut({requestType:"vendor",recipient:"device",request:1,value:41,index:0})).status)throw new Error("1-Wire Device read bit transfer failed.");return(await this.read(1))[0]}async clearByte(){await this.read(1)}async romCommand(e=null,t=!1){let r=e?t?105:85:t?60:204,n=e?e.buffer:new Uint8Array(8).buffer,i=await 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e.forEach((e,r)=>t+=(255&e)<<8*r),t},T=e=>[255&e,(65280&e)>>8,(16711680&e)>>16,(4278190080&e)>>24],B=(...e)=>new Date(1e3*_(...e)),S=e=>T(e.getTime()/1e3),I=(e,t,r,n,i,s)=>{let o=(e=>("00"+(e.getUTCMonth()+1)).substr(-2)+("00"+e.getUTCDate()).substr(-2)+" "+e.getUTCFullYear()+" "+("00"+e.getUTCHours()).substr(-2)+("00"+e.getUTCMinutes()).substr(-2)+" "+("00"+e.getUTCSeconds()).substr(-2))(B(e,t,r,n));return E(s)?o+=("00"+(32+(31&i)).toString()).substr(-2):(o+=((240&i)/16).toString(16),o+=(31&i).toString(16)),o},R=e=>{const t=/(\d{2})(\d{2}) (\d{4}) (\d{2})(\d{2}) (\d{2})/.exec(e);if(null===t||7!==t.length)throw new Error("Invalid serial string.");const r=t.slice(1).map(e=>parseInt(e,10)),n=Date.UTC(r[2],r[0]-1,r[1],r[3],r[4],r[5]);return T(n/1e3)},P=(e,t,r,n)=>{let i=0;switch(i=E(t)?parseInt(e.substr(-2),10)-32:parseInt(e.substr(-2),10),r===s.dec&&(i|=128),n){case o.kg:i|=32;break;case o.ne:i|=64;break;case o.er:i|=96}return i},U=()=>{let e=new Array(256);for(let t=0;t<e.length;t++){e[t]=new Uint8Array(32);for(let r=0;r<e[t].length;r++)t>0&&(t%32==30||t%32==31)?r===e[t].length-1?e[t][r]=207:e[t][r]=255:e[t][r]=85}return e},C=(e,t)=>{const r=T(e.peak||0),n=T(64*(e.work||0)),i=T(e.distance||0);t[18]=i[0],t[19]=i[1],t[20]=r[0],t[21]=r[1],t[22]=n[0],t[23]=n[1],t[24]=n[2],t[25]=n[3],t[26]=m(e.seat),t[27]=m(e.rom2),t[28]=m(e.rom1),t[29]=m(e.chest)},k=(e,t)=>{e.low&&M(e.low,18,t),e.high&&M(e.high,24,t)},O=(e,t)=>({power:e[t]+((31&e[t+2])<<8),velocity:e[t+1]+((224&e[t+2])<<3),force:e[t+3]+((240&e[t+5])<<4),position:e[t+4]+((15&e[t+5])<<8)}),M=(e,t,r)=>{r[t++]=255&e.power,r[t++]=255&e.velocity,r[t++]=((7936&e.power)>>8)+((1792&e.velocity)>>3),r[t++]=255&e.force,r[t++]=255&e.position,r[t++]=((3840&e.position)>>8)+((3840&e.force)>>4)},x=e=>{e.forEach(e=>{if(!y(e)){let t=0;for(let r=0;r<30;r++){let n=e[r];for(let e=0;e<8;e++){let e=(n^t)%2;t>>=1,n>>=1,e&&(t^=40961)}}let r=T(65535^t);e[30]=r[0],e[31]=r[1]}})};class N extends h{constructor(e,t,r){super(r),this.echipId=e,this.owDevice=t,this.data=this.loadData(),c.a.info("EChip connected: "+this.id)}get id(){return this.echipId.reduce((e,t)=>e+=(15&t).toString(16)+(t>>4&15).toString(16),"").split("").reverse().join("")}destroy(){this.disconnected()}async getData(){return this.data}async clearData(){let e=d({});try{let t=(await this.data).rawData;await this.owDevice.keyWriteDiff(this.echipId,e,t,!1)}catch(t){await this.owDevice.keyWriteAll(this.echipId,e,!1)}this.data=new Promise(t=>t(f(e)))}async setData(e){let t=d(e),r=(await this.data).rawData;await this.owDevice.keyWriteDiff(this.echipId,t,r,!1),this.data=new Promise(e=>e(f(t)))}async dispose(){await super.dispose(),c.a.info("EChip disconnected: "+this.id)}async loadData(){let e=f(await this.owDevice.keyReadAll(this.echipId,!1));return e.validStructure||c.a.warn("Invalid Data Structure"),e}}var L=r(4);class Y{constructor(e,t){this.disposed=!1,this.onDisconnectListener=null,this.onEChipDetectEvent=new u.a,this.onDisconnectEvent=new u.a,this.activeKeys=new Map,this.onDisconnectListener=t(e=>this.disconnected(e)),this.usbDevice=e,this.owDevice=new L.a(e,e=>this.echipsDetected(e)),this.claimed=this.owDevice.claim().then(()=>(c.a.info("EChip Reader connected."),this.owDevice.startSearch(),!0))}get diposed(){return this.disposed}onDisconnect(e){return this.onDisconnectEvent.on(e)}onEChipDetect(e){this.onEChipDetectEvent.on(e)}echipsDetected(e){let t=[];e.forEach(e=>{let r=e.join();if(t.push(r),!this.activeKeys.has(r)){let t=new N(e,this.owDevice,e=>this.onDisconnect(e));this.activeKeys.set(r,t),this.onEChipDetectEvent.emit(t)}}),this.activeKeys.forEach((e,r)=>{t.includes(r)||(e.destroy(),this.activeKeys.delete(r))})}disconnected(e){this.usbDevice===e&&(this.onDisconnectEvent.emit(null),this.dispose())}async dispose(){await this.owDevice.close(),this.onDisconnectListener&&(this.onDisconnectListener.dispose(),this.onDisconnectListener=null),this.disposed=!0,c.a.info("EChip Reader disconnected.")}}r.d(t,"EChipReaderWatcher",(function(){return W}));const q=1274,j=9360;class W extends i{constructor(){super(q,j),this.onConnectEvent=new u.a,this.onDisconnectEvent=new u.a}stop(){this.connectedDevices.forEach(e=>this.disconnected(e))}onConnect(e){return this.onConnectEvent.on(e)}onDisconnect(e){return this.onDisconnectEvent.on(e)}async connected(e){await super.connected(e);const t=new Y(e,e=>this.onDisconnect(e));await t.claimed,this.onConnectEvent.emit(t)}async disconnected(e){await super.disconnected(e),this.onDisconnectEvent.emit(e)}}t.default=new W}])}));

package.json

 {
   "name": "@keiser/echip-webusb",
-  "version": "1.1.3",
+  "version": "1.2.0",
   "description": "Keiser Air eChip WebUSB Library",
@@ -5,0 +5,0 @@ "keywords": [

README.md

@@ -16,10 +16,12 @@ # Keiser Air eChip WebUSB Library
 
-Import module using preferred module loading technique and construct a new `EChipReaderWatcher` class.
+Import singleton instance from module using preferred module loading technique.
 ```ts
 import EChipReaderWatcher from '@keiser/echip-webusb'
 
-const echipReaderWatcher = new EChipReaderWatcher()
+if (EChipReaderWatcher.isConnected) {
+  console.log('EChip Reader Connected 😄')
+}
 ```
 
-The `EChipReaderWatcher` handles permissions and USB connection events. On first load, the browser will not have provided a grant to the site to access the USB device, so the `echipReaderWatcher.start()` method must be called by an event that originates from a user action.  This may only be required once on the first visit to the site, or it may be required each time the site is loaded based on browser vendors preferred implementation.
+The `EChipReaderWatcher` handles permissions and USB connection events. On first load, the browser will not have provided a grant to the site to access the USB device, so the `EChipReaderWatcher.start()` method must be called by an event that originates from a user action.  This may only be required once on the first visit to the site, or it may be required each time the site is loaded based on browser vendors preferred implementation.
 
@@ -29,3 +31,3 @@ ```ts
   try {
-    await echipReaderWatcher.start()
+    await EChipReaderWatcher.start()
   } catch (error) {
@@ -37,6 +39,6 @@ console.error(error.message)
 
-Once the `echipReaderWatcher.start()` method has been called the class will prompt the browser for permission and begin watching for devices matching the EChip Readers device signature.  To be alerted when a device is found, pass a function to the `echipReaderWatcher.onConnect()` method.
+Once the `EChipReaderWatcher.start()` method has been called the class will prompt the browser for permission and begin watching for devices matching the EChip Readers device signature.  To be alerted when a device is found, pass a function to the `EChipReaderWatcher.onConnect()` method.
 
 ```ts
-echipReaderWatcher.onConnect((echipReader) => {
+EChipReaderWatcher.onConnect((echipReader) => {
   console.log('EChip Reader Connected 😄')
@@ -46,3 +48,3 @@ })
 
-The `echipReaderWatcher.onConnect()` will pass in an `EChipReader` object which is the object bound to the physical device connected.  This library is capable of handling multiple EChip Reader devices simultaneously, so the `onConnect()` method has potential for returning multiple `EChipReader` devices over the course of the application's life.
+The `EChipReaderWatcher.onConnect()` will pass in an `EChipReader` object which is the object bound to the physical device connected.  This library is capable of handling multiple EChip Reader devices simultaneously, so the `onConnect()` method has potential for returning multiple `EChipReader` devices over the course of the application's life.
 
@@ -64,3 +66,3 @@ ```ts
 
-The `EChipReader` object also has an `onEChipDetect()` method which will alert when a valid EChip has been placed into the reader. The event passes in an `EChip` object that can be used to interact with the EChip data directly.  Just like the `echipReaderWatcher.onConnect()` method, the `EChipReader.onEChipDetect()` method can be called multiple times for multiple EChips all being handled concurrently.  Once an EChip is disconnected, the `EChip` object is disposed and cannot be reused.
+The `EChipReader` object also has an `onEChipDetect()` method which will alert when a valid EChip has been placed into the reader. The event passes in an `EChip` object that can be used to interact with the EChip data directly.  Just like the `EChipReaderWatcher.onConnect()` method, the `EChipReader.onEChipDetect()` method can be called multiple times for multiple EChips all being handled concurrently.  Once an EChip is disconnected, the `EChip` object is disposed and cannot be reused.
 
@@ -72,3 +74,2 @@ Full example usage:
 document.addEventListener('DOMContentLoaded', event => {
-  const echipReaderWatcher = new EChipReaderWatcher()
   const connectButton = document.querySelector('#connect') as HTMLInputElement
@@ -79,3 +80,3 @@
       try {
-        await echipReaderWatcher.start()
+        await EChipReaderWatcher.start()
       } catch (error) {
@@ -87,6 +88,6 @@ console.error(error.message)
 
-  echipReaderWatcher.onConnect((echipReader) => {
+  EChipReaderWatcher.onConnect((echipReader) => {
     console.log('EChip Reader Connected 😄')
-    
-    echipReader.onEChipDetect((echip) => {
+
+    echipReader.onEChipDetect(async (echip) => {
       console.log('EChip Connected: ' + echip.id)
@@ -105,4 +106,48 @@ console.log(await echip.getData())
 
-_Coming Soon_
+### EChipReaderWatcher
 
+The `EChipReaderWatcher` is a singleton class which handles the USB device monitoring and permissions handling. There can be only one `EChipReaderWatcher` instance created within a `window` scope, so the library instantiates the class during import and preserves a single instance for all imports.
+
+#### Properties
+| Name | Type | Usage |
+| ---- | ----------- | ----- |
+| `isConnected` | `Boolean` | Indicates whether an eChip Reader Device is connected |
+
+#### Properties
+| Name | Parameters | Return Type | Usage |
+| ---- | ---------- | ----------- | ----- |
+| `onConnect` | `Listener<EChipReader>` | `Disposable` | Adds an event listener for when an eChip Reader Device is connected |
+
+
+```ts
+import EChipReaderWatcher from '@keiser/echip-webusb'
+
+document.addEventListener('DOMContentLoaded', event => {
+  const connectButton = document.querySelector('#connect') as HTMLInputElement
+
+  if (connectButton) {
+    connectButton.addEventListener('click', async () => {
+      try {
+        await EChipReaderWatcher.start()
+      } catch (error) {
+        console.error(error.message)
+      }
+    })
+  }
+
+  EChipReaderWatcher.onConnect((echipReader) => {
+    console.log('EChip Reader Connected 😄')
+
+    echipReader.onEChipDetect(async (echip) => {
+      console.log('EChip Connected: ' + echip.id)
+      console.log(await echip.getData())
+    })
+
+    echipReader.onDisconnect(() => {
+      console.log('EChip Reader Disconnected 😞')
+    })
+  })
+})
+```
+
 ## References
@@ -109,0 +154,0 @@ [Maxim Integrated 1-Wire USB Android notes](https://www.maximintegrated.com/en/app-notes/index.mvp/id/5705)

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