@scandit/web-datacapture-core/build/js/chunks/chunk-GJBUPJIM.js

Scandit Data Capture SDK for the Web

import {b}from'./chunk-IBDUCVB4.js';import {a as a$1}from'./chunk-LFJUGRQV.js';import {d as d$2}from'./chunk-ADFFBLII.js';import {d as d$1}from'./chunk-AFCJ24Y3.js';import {b as b$1}from'./chunk-VBUDN72N.js';import {a as a$3}from'./chunk-XR65N6EG.js';import {g}from'./chunk-3D2HNEVH.js';import {a}from'./chunk-6LHGFWQI.js';import {a as a$2}from'./chunk-QCZSSQAQ.js';d$1.addVideoDevicesListener(w=>{b.integrateIncomingVideoDevices(w.map(e=>d.fromDeviceCamera(e)));});var C;C=a$1;var s=class s{constructor(e){this._label="";this._deviceId="";this._notFoundOnDevice=false;this._isBestGuess=false;this.type="camera";this._currentState="off";this._settings=new g;this._desiredTorchState="off";this._desiredState="off";this.listeners=[];this._context=null;this[C]={markAsUnmappedToDeviceCameras:this.markAsUnmappedToDeviceCameras.bind(this),setDeviceId:this.setDeviceId.bind(this),setLabel:this.setLabel.bind(this),markAsBestGuess:this.markAsBestGuess.bind(this)};this._captureAndSendBound=this.captureAndSend.bind(this);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$2.instance();}static pickBestGuess(){return s.getOrCreate({position:"worldFacing",bestGuess:true})}static pickBestGuessForPosition(e){if(!a.availablePositions.includes(e))throw new Error(`Invalid camera position: "${e}"`);return s.getOrCreate({position:e})}static forDeviceId(e){return s.getOrCreate({deviceId:e})}static async getAll(e,t){return await d$1.getCameras(e!=null?e:false,t!=null?t:false),[...b.get()]}static getOrCreate(e){let{deviceId:t,position:r,bestGuess:i}=e,n=new s;return n._deviceId=t!=null?t:"",n.position=r!=null?r:"worldFacing",i&&n[a$1].markAsBestGuess(),b.getOrCreate(n)}static fromDeviceCamera(e){let t=new s;return t.position=e.position,t._deviceId=e.deviceId,t._label=e.label,t}get deviceId(){return this._deviceId}get label(){return this._label}get desiredState(){return this._desiredState}get settings(){return this._settings}get currentResolution(){var e;return (e=this._currentResolution)!=null?e:null}setDeviceId(e){this._deviceId=e;}setLabel(e){this._label=e;}get context(){return this._context}set context(e){this._context=e,this._context&&this.currentState==="on"&&this.startSendingCapturesToWorker();}get currentState(){return this._currentState}async switchToDesiredState(e){var t,r;if(this.currentTransitionStrategyPromise&&await this.currentTransitionStrategyPromise,this._notFoundOnDevice&&(e==="on"||e==="standby"))throw new a$2({message:`Cannot switch state to ${e}. This camera could not be mapped to a detected camera on the device. Please use another camera and delete this one.`,name:"Unmapped Camera"});return this.currentTransitionStrategyPromise=(r=(t=this.stateTransitionStrategyMap[this.currentState])==null?void 0:t[e])==null?void 0:r.call(t).catch(i=>{if(i instanceof DOMException&&i.message==="The associated Track is in an invalid state"){a$3.log(a$3.Level.Warn,i);return}throw i}),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 r;this._settings=new g(e);let t=this.settings.getProperty("grayScaleFrameReader");if(this.cameraManager.setFrameReaderType(t===true?"GRAYSCALE":"RGBA"),this.currentState==="on"||this.currentState==="standby"){let i=this.cameraManager.activeCameraSettings;(i==null?void 0:i.preferredResolution)!==this.settings.preferredResolution&&(await this.cameraManager.applyCameraSettings(this.settings),(r=this.cameraManager.activeCamera)!=null&&r.currentResolution&&(this._currentResolution={width:this.cameraManager.activeCamera.currentResolution.width,height:this.cameraManager.activeCamera.currentResolution.height})),await this.cameraManager.setZoom(this.settings.zoomFactor);let n=this.settings.getProperty("minFrameRate"),h=this.settings.getProperty("maxFrameRate");(n!=null||h!=null)&&await this.cameraManager.setFrameRate({min:n,max:h});let l=this.settings.getProperty("manualLensPosition");l!=null&&await this.cameraManager.setFocus(l);let p=this.settings.getProperty("exposureTargetBias"),S=this.settings.getProperty("exposureDuration");(p!=null||S!=null)&&await this.cameraManager.setExposure({compensation:p,time:S});}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,true),this.context&&await this.context.setFrameSource(this);}getCurrentState(){return this._currentState}async setClipArea(e){await this.cameraManager.setClipArea(e);}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{a$3.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 d$1.getCameras()).find(r=>r.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,true):this.cameraManager.setMirrorImageEnabled(this.cameraManager.isMirrorImageEnabled(),false),this.context&&await this.context.setFrameSource(this),this.cameraManager.activeCamera&&(this._deviceId=this.cameraManager.activeCamera.deviceId,this._label=this.cameraManager.activeCamera.label,this.position=this.cameraManager.activeCamera.position,this._currentResolution=this.cameraManager.activeCamera.currentResolution);}markAsUnmappedToDeviceCameras(){this._notFoundOnDevice=true;}markAsBestGuess(){this._isBestGuess=true;}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.bind(this)));}async captureAndSend(){if(this.currentState!=="on"||!this.context)return;if(!this.context.hasEnabledMode()){this._lastCaptureRequestAnimationFrame=this.cameraManager.requestVideoFrame(this._captureAndSendBound);return}let e=null;try{e=this.cameraManager.captureImage();}catch(t){a$3.warn("Camera: error while capturing image.",t);}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$3.warn("error while recycling uint8array",t);});this._lastCaptureRequestAnimationFrame=this.cameraManager.requestVideoFrame(this._captureAndSendBound);}}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$3.log(a$3.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$3.log(a$3.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$3.log(a$3.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$3.log(a$3.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 b$1.isAndroidWebView()),this._isAndroidWebView}isZoomAvailable(){var e;return ((e=this.cameraManager.mediaTrackCapabilities)==null?void 0:e.zoom)!=null}},d=s;export{d as a};