scandit-web-datacapture-core/build/js/chunks/chunk-45EBHQYM.js

Scandit Data Capture SDK for the Web

import { a as a$1 } from './chunk-IWMYUNZ3.js';
import { d } from './chunk-XLX4QIMT.js';
import { a } from './chunk-SP3HSP4K.js';
import { a as a$2 } from './chunk-PSQ6LAQA.js';
import { g as g$1 } from './chunk-36CGJKPG.js';
import { d as d$1 } from './chunk-5Y4OYXNX.js';

var g=class n{constructor(e){this.deviceId="";this.type="camera";this._currentState="off";this._settings=new g$1;this._desiredTorchState="off";this._desiredState="off";this.listeners=[];this._context=null;this.stateTransitionStrategyMap={off:{on:this.transitionFromStateOffToOn.bind(this),standby:this.transitionFromStateOffToStandby.bind(this)},on:{off:this.transitionFromStateOnToOff.bind(this),standby:this.transitionFromStateOnToStandby.bind(this)},standby:{off:this.transitionFromStateStandbyToOff.bind(this),on:this.transitionFromStateStandbyToOn.bind(this)}};this.cameraManager=e!=null?e:d.instance(),this.updateCanvasVideoImage=this.updateCanvasVideoImage.bind(this),this.captureAndSend=this.captureAndSend.bind(this);}static get default(){let e=new n;return e.position="worldFacing",e}get desiredState(){return this._desiredState}get settings(){return this._settings}get currentResolution(){var e;return (e=this._currentResolution)!=null?e:null}get context(){return this._context}set context(e){this._context=e,this._context&&this.currentState==="on"&&this.startSendingCapturesToWorker();}get currentState(){return this._currentState}static atPosition(e){if(d$1.Camera.availablePositions.includes(e)){let t=new n;return t.position=e,t}return a.log(a.Level.Warn,`invalid CameraPosition: "${e}"`),null}static fromDeviceCamera(e){let t=n.atPosition(e.position);return t.deviceId=e.deviceId,t.label=e.label,t}async switchToDesiredState(e){var t,i;return this.currentTransitionStrategyPromise&&await this.currentTransitionStrategyPromise,this.currentTransitionStrategyPromise=(i=(t=this.stateTransitionStrategyMap[this.currentState])==null?void 0:t[e])==null?void 0:i.call(t).catch(r=>{if(r instanceof DOMException&&r.message==="The associated Track is in an invalid state"){a.log(a.Level.Warn,r);return}throw r}),this.currentTransitionStrategyPromise}getDesiredTorchState(){return this._desiredTorchState}async setDesiredTorchState(e){this._desiredTorchState=e,await this.cameraManager.setTorchEnabled(this._desiredTorchState==="on"),await this.notifyContext({type:"torchState",newValue:this._desiredTorchState});}async isTorchAvailable(){return this.cameraManager.isTorchAvailable()}addListener(e){e!=null&&(this.listeners.includes(e)||this.listeners.push(e));}removeListener(e){e!=null&&this.listeners.includes(e)&&this.listeners.splice(this.listeners.indexOf(e),1);}async applySettings(e){var i;this._settings=new g$1(e);let t=this.settings.getProperty("grayScaleFrameReader");if(this.cameraManager.setFrameReaderType(t===!0?"GRAYSCALE":"RGBA"),this.currentState==="on"||this.currentState==="standby"){let r=this.cameraManager.activeCameraSettings;(r==null?void 0:r.preferredResolution)!==this.settings.preferredResolution&&(await this.cameraManager.applyCameraSettings(this.settings),(i=this.cameraManager.activeCamera)!=null&&i.currentResolution&&(this._currentResolution={width:this.cameraManager.activeCamera.currentResolution.width,height:this.cameraManager.activeCamera.currentResolution.height})),await this.cameraManager.setZoom(this.settings.zoomFactor);let o=this.settings.getProperty("minFrameRate"),c=this.settings.getProperty("maxFrameRate");(o!=null||c!=null)&&await this.cameraManager.setFrameRate({min:o,max:c});let m=this.settings.getProperty("manualLensPosition");m!=null&&await this.cameraManager.setFocus(m);let u=this.settings.getProperty("exposureTargetBias"),d=this.settings.getProperty("exposureDuration");(u!=null||d!=null)&&await this.cameraManager.setExposure({compensation:u,time:d});}return this.notifyContext({type:"cameraSettings",newValue:this.settings})}toJSONObject(){return {type:this.type,position:this.position,settings:this.settings.toJSONObject(),desiredState:this.desiredState,desiredTorchState:this._desiredTorchState}}getMirrorImageEnabled(){var e;return (e=this._desiredMirrorImageEnabled)!=null?e:this.cameraManager.isMirrorImageEnabled()}async setMirrorImageEnabled(e){this._desiredMirrorImageEnabled=e,this.cameraManager.setMirrorImageEnabled(e,!0),this.context&&await this.context.setFrameSource(this);}getCurrentState(){return this._currentState}async setCurrentState(e){if(e!==this._currentState){this._currentState=e,this.notifyListeners();try{await this.notifyContext({type:"frameSourceState",newValue:e}),e==="on"&&this.startSendingCapturesToWorker();}catch(t){a.log(a.Level.Warn,"Error while notifying context about new state of Camera");}}}async setupCamera(){if(this.cameraManager.setSelectedCameraSettings(this.settings),this.deviceId==="")this.cameraManager.setSelectedCamera(),this.cameraManager.setInitialCameraPosition(this.position);else {let t=(await a$1.getCameras()).find(i=>i.deviceId===this.deviceId);t&&(this.cameraManager.setInitialCameraPosition(t.position),this.cameraManager.setSelectedCamera(t));}await this.cameraManager.setupCameras(),typeof this._desiredMirrorImageEnabled=="boolean"?this.cameraManager.setMirrorImageEnabled(this._desiredMirrorImageEnabled,!0):this.cameraManager.setMirrorImageEnabled(this.cameraManager.isMirrorImageEnabled(),!1),this.context&&await this.context.setFrameSource(this),this.cameraManager.activeCamera&&(this.label=this.cameraManager.activeCamera.label,this.position=this.cameraManager.activeCamera.position,this.deviceId=this.cameraManager.activeCamera.deviceId,this._currentResolution=this.cameraManager.activeCamera.currentResolution);}async notifyContext(e){if(this.context)return this.context.update([e])}notifyListeners(){for(let e of this.listeners)e.didChangeState&&e.didChangeState(this,this.currentState);}updateCanvasVideoImage(){this.currentState==="on"&&this.context&&(this.cameraManager.updateCanvasVideoImage(),this._lastCanvasVideoPreviewAnimationFrame=this.cameraManager.requestVideoFrame(this.updateCanvasVideoImage));}async captureAndSend(){if(this.currentState!=="on"||!this.context)return;if(!this.context.hasEnabledMode()){this._lastCaptureRequestAnimationFrame=this.cameraManager.requestVideoFrame(this.captureAndSend);return}let e=null;try{e=this.cameraManager.captureImage();}catch(t){a.log(a.Level.Warn,t.message);}finally{if(e!=null)if(this.cameraManager.synchronousFrameHandling){let t=await this.context.sendFrameToProcessor(e);this.cameraManager.recycle(t.data);}else this.context.sendFrameToProcessor(e).then(t=>(this.cameraManager.recycle(t.data),null)).catch(t=>{a.log(a.Level.Warn,"error while recycling uint8array",t);});this._lastCaptureRequestAnimationFrame=this.cameraManager.requestVideoFrame(this.captureAndSend);}}startSendingCapturesToWorker(){this.stopSendingCapturesToWorker(),this.captureAndSend();}stopSendingCapturesToWorker(){this._lastCanvasVideoPreviewAnimationFrame!=null&&this.cameraManager.cancelVideoFrame(this._lastCanvasVideoPreviewAnimationFrame),this._lastCaptureRequestAnimationFrame!=null&&this.cameraManager.cancelVideoFrame(this._lastCaptureRequestAnimationFrame);}async transitionFromStateOffToOn(){if(!(this.currentState==="on"||this.currentState==="starting"||this.currentState==="wakingUp")){this._desiredState="on",await this.setCurrentState("starting");try{await this.setupCamera(),await this.setCurrentState("on");}catch(e){throw a.log(a.Level.Error,e),await this.setCurrentState("off"),e}}}async transitionFromStateOffToStandby(){if(!(this.currentState==="standby"||this.currentState==="bootingUp"||this.currentState==="goingToSleep")){if(await this.isAndroidWebView()){a.log(a.Level.Warn,'Warning: "Standby" state does not work inside web views. Falling back to state "On".'),await this.transitionFromStateOffToOn();return}this._desiredState="standby",await this.setCurrentState("bootingUp");try{await this.setupCamera(),this.cameraManager.pauseStream(),await this.setCurrentState("standby");}catch(e){throw a.log(a.Level.Error,e),await this.setCurrentState("off"),e}await this.setCurrentState("standby"),await this.setDesiredTorchState("off");}}async transitionFromStateOnToOff(){this.currentState==="off"||this.currentState==="stopping"||(this._desiredState="off",await this.setCurrentState("stopping"),await this.cameraManager.stopStream(),await this.setCurrentState("off"),await this.setDesiredTorchState("off"));}async transitionFromStateOnToStandby(){if(!(this.currentState==="standby"||this.currentState==="bootingUp"||this.currentState==="goingToSleep")){if(await this.isAndroidWebView()){a.log(a.Level.Warn,'Warning: "Standby" state does not work inside web views. Falling back to state "Off".'),await this.transitionFromStateOnToOff();return}this._desiredState="standby",await this.setCurrentState("goingToSleep"),this.cameraManager.pauseStream(),await this.setCurrentState("standby"),await this.setDesiredTorchState("off");}}async transitionFromStateStandbyToOff(){this.currentState==="off"||this.currentState==="stopping"||(this._desiredState="off",await this.setCurrentState("shuttingDown"),await this.cameraManager.stopStream(),await this.setCurrentState("off"),await this.setDesiredTorchState("off"));}async transitionFromStateStandbyToOn(){this.currentState==="on"||this.currentState==="starting"||this.currentState==="wakingUp"||(this._desiredState="on",await this.setCurrentState("wakingUp"),this.cameraManager.resumeStream(),await this.setCurrentState("on"));}async isAndroidWebView(){return this._isAndroidWebView==null&&(this._isAndroidWebView=await a$2.isAndroidWebView()),this._isAndroidWebView}};

export { g as a };