dynamsoft-mrz-scanner/dist/mrz-scanner.bundle.js

Dynamsoft MRZ Scanner JavaScript Edition is a ready-to-use SDK for web applications that accurately recognizes and parses Machine-Readable Zones on Machine-Readable Travel Documents.

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#00ff7f`}}),H(this,`_eventListeners`,{}),H(this,`_taskIdIOSResizeProblem`,void 0),H(this,`onOpened`,void 0);let t=this._coreShell=document.createElement(`div`);Object.assign(t.style,{width:`100%`,height:`100%`,minWidth:`100px`,minHeight:`100px`,backgroundColor:`black`,display:`flex`,justifyContent:`center`,alignItems:`center`,overflow:`hidden`,position:`relative`});let n=this._coreOuterLayer=document.createElement(`div`);Object.assign(n.style,{width:`auto`,height:`100%`,minWidth:`100px`,minHeight:`100px`,aspectRatio:`1`,flex:`none`,position:`relative`,overflow:`hidden`});let r=this._coreInnerLayer=document.createElement(`div`);Object.assign(r.style,{width:`100%`,height:`100%`,position:`relative`,transformOrigin:`center`});let i=this._video=document.createElement(`video`);Object.assign(i.style,{width:`100%`,height:`100%`,position:`absolute`,left:`0`,top:`0`,objectFit:`fill`}),i.muted=!0,i.playsInline=!0,i.addEventListener(`resize`,()=>{try{this._updateObjectFit()}catch(e){console.error(e)}try{this._updateCanvasSize()}catch(e){console.error(e)}}),r.append(i),n.append(r),t.append(n),typeof ResizeObserver<`u`&&new ResizeObserver(()=>{if(!t.isConnected)return;this._updateObjectFit();let e=navigator?.userAgent;if(e&&/iPhone|iPad/i.test(e)){this._taskIdIOSResizeProblem&&clearInterval(this._taskIdIOSResizeProblem);let e=0;this._taskIdIOSResizeProblem=setInterval(()=>{if(++e>10||!t.isConnected)return clearInterval(this._taskIdIOSResizeProblem),void(this._taskIdIOSResizeProblem=null);this._updateObjectFit()},100)}}).observe(t);for(let t of e._arrConstructors)t.call(this)}_updateObjectFit(){let e=this._video;if(!e.isConnected||!e.videoWidth||!e.videoHeight)return;let t=this._coreOuterLayer.style,n=this._regionBoxWrapper?.style;if(this._objectFit===`fill`||t.aspectRatio===void 0)return t.width!==`100%`&&(t.width=`100%`),t.height!==`100%`&&(t.height=`100%`),void(n&&(n.width!==`100%`&&(n.width=`100%`),n.height!==`100%`&&(n.height=`100%`)));let{width:r,height:i}=this._coreShell.getBoundingClientRect(),a=`${e.videoWidth} / ${e.videoHeight}`;a!=t.aspectRatio&&(t.aspectRatio=a),n&&a!=n.aspectRatio&&(n.aspectRatio=a);let o=r/i-e.videoWidth/e.videoHeight;if(Math.abs(o)<.001)return;let s=!1;o>0&&(s=!s),this._objectFit===`cover`&&(s=!s);let c=n&&this._objectFit===`contain`,l=n&&this._objectFit===`cover`;s?(t.width!=`auto`&&(t.width=`auto`),t.height!=`100%`&&(t.height=`100%`),c&&(n.width!=`auto`&&(n.width=`auto`),n.height!=`100%`&&(n.height=`100%`))):(t.width!=`100%`&&(t.width=`100%`),t.height!=`auto`&&(t.height=`auto`),c&&(n.width!=`100%`&&(n.width=`100%`),n.height!=`auto`&&(n.height=`auto`))),l&&(n.width!==`100%`&&(n.width=`100%`),n.height!==`100%`&&(n.height=`100%`))}get video(){return this._video}get track(){var e;return(e=this._video)==null||(e=e.srcObject)==null?void 0:e.getTracks().filter(e=>e.kind===`video`)[0]}get objectFit(){return this._objectFit}set objectFit(e){this._objectFit=e,this._updateObjectFit()}get ui(){return this._ui||this._coreShell}set ui(e){if(!e)return void(this._ui=void 0);if(e instanceof HTMLElement&&e.contains(this._coreShell))return void(this._ui=e);if(typeof e==`string`){if(!e.trim().startsWith(`<`))throw Error(`Invalid html string.`);e=ft(e,{inlineScript2Blob:this._uiInlineScript2Blob,internalCss2Blob:this._uiInternalCss2Blob,insertInternalCss2ExistedSheet:this._uiInternalCss2ExistedSheet})}let t;if(e instanceof HTMLElement)t=e;else{if(!(e instanceof DocumentFragment))throw Error(`Seems no HTMLElement.`);t=document.createElement(`div`),Object.assign(t.style,{width:`100%`,height:`100%`}),t.append(e)}let n=`dm-camera-core-container`,r=t.classList.contains(n)?t:t.querySelector(`.${n}`);if(!r)throw Error(`Can't find element with class \`${n}\`.`);this._ui=t;for(let e of t.querySelectorAll(`script`))e.currentDMCamera=this;r.append(this._coreShell)}get status(){return this._pOpen?this._pOpen.isPending?this._shouldClose?`closing`:`opening`:this._paused||this._video.paused||this.track?.readyState===`ended`?`paused`:`opened`:`closed`}get requestedCamera(){return JSON.parse(JSON.stringify(this._requestedCamera))}get requestedResolution(){return JSON.parse(JSON.stringify(this._requestedResolution))}get currentCamera(){var t;return this.status!==`opened`&&this.status!==`paused`?null:e._mapDeviceInfo?.[(t=this.track)==null||(t=t.getSettings())==null?void 0:t.deviceId]}get currentResolution(){return{width:this.video?.videoWidth,height:this.video?.videoHeight}}get regionBox(){return this._regionBox}static async hasCamera(){var t;return!((t=navigator)==null||!t.mediaDevices)&&!!(await e.getDeviceInfos()).length}static async hasMacroCamera(){var t;return!((t=navigator)==null||!t.mediaDevices)&&!!(await e.getDeviceInfos()).find(e=>{var t;return!e.isFront&&((t=e.capabilities)==null||(t=t.focusDistance)==null?void 0:t.min)<.061})}static async hasFrontCamera(){var t;return!((t=navigator)==null||!t.mediaDevices)&&!!(await e.getDeviceInfos()).find(e=>e.isFront)}static async getDeviceInfos(){var t;if((t=navigator)==null||!t.mediaDevices)throw Error(St);e._delayBeforeEnumerateDevices&&await new Promise(t=>setTimeout(t,e._delayBeforeEnumerateDevices));let n=(await navigator.mediaDevices.enumerateDevices()).filter(e=>e.kind===`videoinput`);if(!n.length)return[];if(n.some(e=>!e.deviceId)){let t;try{e._delayBeforeGetUserMedia&&await new Promise(t=>setTimeout(t,e._delayBeforeGetUserMedia)),t=await navigator.mediaDevices.getUserMedia({video:!0,audio:!1}),e._delayBeforeEnumerateDevices&&await new Promise(t=>setTimeout(t,e._delayBeforeEnumerateDevices)),n=(await navigator.mediaDevices.enumerateDevices()).filter(e=>e.kind===`videoinput`),n.some(e=>!e.deviceId)&&console.warn(`Some camera does not have deviceId.`)}catch(e){console.warn(`Failed to get device ID by opening camera.`,e)}if(t){let e=t.getTracks().filter(e=>e.kind===`video`)[0],r=e.getSettings().deviceId,i=n.find(e=>e.deviceId===r);i?(i.trackLabel=e.label,i.capabilities=e.getCapabilities?.call(e),i.isFront=e.getSettings().facingMode===`user`,i.toJSON=xt):console.warn("Can't find current device by `track.getSettings().deviceId`."),t.getTracks().forEach(e=>e.stop())}}return await e._setCapabilities(n),e._mapDeviceInfo=n.reduce((e,t)=>(e[t.deviceId]=t,e),{}),[...n]}static async _setCapabilities(t){for(let n of t){if(!n.deviceId||xt===n.toJSON)continue;let t=e._mapDeviceInfo?.[n.deviceId];if(t)n.trackLabel=t.trackLabel,n.capabilities=t.capabilities,n.isFront=t.isFront;else try{e._delayBeforeGetUserMedia&&await new Promise(t=>setTimeout(t,e._delayBeforeGetUserMedia));let t=await navigator.mediaDevices.getUserMedia({video:{deviceId:{exact:n.deviceId}},audio:!1}),r=t.getTracks().filter(e=>e.kind===`video`)[0];n.trackLabel=r.label,n.capabilities=r.getCapabilities?.call(r),n.isFront=r.getSettings().facingMode===`user`,t.getTracks().forEach(e=>e.stop())}catch(e){console.warn("Failed to get `trackLabel` and `capabilities`, by opening camera.",e)}n.toJSON=xt}}async open(){if(this.status!==`opened`)if(this.status===`closed`||this.status===`paused`)try{if(this.status===`paused`&&this._cameraChangedWhenPaused&&await this.close(),this.status===`closed`){if(this._pOpen=new ht,this._requestedCamera!==`customized-video`){var t;let n;if(typeof this._requestedCamera==`string`){switch(this._requestedCamera){case`front`:n={facingMode:`user`};break;case`quick-back`:n={facingMode:`environment`};break;case`back`:{let t=await e.getDeviceInfos();if(!t.length)throw Error(`No camera found.`);for(let r of e._cameraNameMatcher){for(let e of t){let t=(e.trackLabel||e.label)?.toLowerCase();for(let i of r)if(t.includes(i)){n={deviceId:e.deviceId};break}if(n)break}if(n)break}if(n)break;t.reverse();for(let e of t)if(!e.isFront){n={deviceId:e.deviceId};break}if(n)break;n={deviceId:t[0].deviceId};break}case`macro-back`:{let t=await e.getDeviceInfos();if(!t.length)throw Error(`No camera found.`);n={deviceId:t.reduce((e,t)=>{var n,r,i;return t!=null&&t.isFront?e:e&&e!=null&&(n=e.capabilities)!=null&&(n=n.focusDistance)!=null&&n.min?(t==null||(r=t.capabilities)==null||(r=r.focusDistance)==null?void 0:r.min)<(e==null||(i=e.capabilities)==null||(i=i.focusDistance)==null?void 0:i.min)?t:e:t})?.deviceId||t[t.length-1].deviceId};break}default:throw Error(`Unknown camera preset: ${this._requestedCamera}`)}this._requestedCamera=n}else n=this._requestedCamera;let r={video:Object.assign({},n,this._requestedResolution),audio:!1};if((t=navigator)==null||!t.mediaDevices)throw Error(St);e._delayBeforeGetUserMedia&&await new Promise(t=>setTimeout(t,e._delayBeforeGetUserMedia));let i=navigator.mediaDevices.getUserMedia(r),a=await(this._getUserMediaTimeout?Promise.race([i,new Promise((e,t)=>setTimeout(()=>t(Error(`Camera open timeout.`)),this._getUserMediaTimeout))]):i);if(this.status===`closing`)throw Error(`Camera closed.`);this._video.srcObject=a}else{await this._video.play();let e=0;for(;++e<100&&!(this.video.readyState>=HTMLMediaElement.HAVE_ENOUGH_DATA);)await new Promise(e=>setTimeout(e,100))}if(yt&&this._requestedCamera!==`customized-video`){this._noUseButWorkaroundIosPwaProblem=this._video.offsetHeight,await new Promise(e=>{let t=!1,n=()=>{this._video.removeEventListener(`loadedmetadata`,n),t=!0,e()};this._video.addEventListener(`loadedmetadata`,n),setTimeout(()=>{t||(console.warn(`video loadedmetadata timeout`),n())},1e3)});let t=!1;if(await Promise.race([this.video.play().then(()=>{t=!0}),new Promise(n=>setTimeout(()=>{t||n()},e._videoPlayTimeout))]),!t)throw Error("`video.play()` unresponsive in current iOS PWA environment. Please use `singleFrameMode='camera'` instead.")}else{let t=!1;await Promise.race([this.video.play(),async function(){if(await new Promise(t=>setTimeout(t,e._videoPlayTimeout)),!t)throw Error(`video play timeout`)}()]),t=!0}if(this.status===`closing`)throw Error(`Camera closed.`);if(this.track){let t=this.track.getSettings(),n=0;for(;++n<e._countEnsureResolution&&!(t.width===this.video.videoWidth&&t.height===this.video.videoHeight||t.height===this.video.videoWidth&&t.width===this.video.videoHeight);)await new Promise(e=>setTimeout(e,100))}if(this.status===`closing`)throw Error(`Camera closed.`);this._pOpen.resolve()}else{if(this._pOpen=new ht,await this._video.play(),this.status===`closing`)throw Error(`Camera closed.`);this._paused=!1,this._pOpen.resolve()}for(let t of e._arrOnOpen)t.call(this);this._callOpenedListeners()}catch(e){var n,r;let t=(n=this._video)==null||(n=n.srcObject)==null||(r=n.getTracks)==null?void 0:r.call(n);if(t)for(let e of t)e?.stop();this._video.srcObject=null;let i=this._pOpen;this._pOpen=null,this._shouldClose=!1,i.catch(e=>{}),i.reject();let a=Error(`Error opening camera: ${e?.message}`,{cause:e});throw a.name=e.name,a}else{if(this.status!==`opening`&&this.status!==`closing`)throw Error(`Never`);await this._pOpen}}async pause(){try{await this._pOpen}catch{}this.status===`opened`&&(this._video.pause(),this._paused=!0)}async close(){var t,n,r;for(let t of e._arrBeforeClose)t.call(this);if(this.status===`closed`)return;if(this.status===`opening`&&(this._shouldClose=!0),this.status===`closing`){try{await this._pOpen}catch{}return}let i=(t=this._video)==null||(t=t.srcObject)==null||(n=t.getTracks)==null?void 0:n.call(t);if(i)for(let e of i)e?.stop();this._video&&(this._video.srcObject=null),this._pOpen=null,this._paused=!1,this._cameraChangedWhenPaused=!1;for(let t of e._arrOnClose)t.call(this);this._regionBoxWrapper&&(this._regionBoxWrapper.style.visibility=`hidden`),(r=this._eventListeners.closed)==null||r.forEach(e=>{try{e.call(this)}catch(e){console.error(e)}})}async requestCamera(e){if(typeof e==`string`)Ct.includes(e)?this._requestedCamera=e:this._requestedCamera={deviceId:{exact:e}};else if(e)if(e.kind===`videoinput`)e.deviceId?this._requestedCamera={deviceId:{exact:e.deviceId}}:this._requestedCamera=`back`;else{let t=this._requestedCamera=JSON.parse(JSON.stringify(e));if(t.width||t.height||t.aspectRatio){let e=this._requestedResolution={};t.width&&(e.width=t.width,delete t.width),t.height&&(e.height=t.height,delete t.height),t.aspectRatio&&(e.aspectRatio=t.aspectRatio,delete t.aspectRatio)}}else e===null?this._requestedCamera=null:e===void 0&&(this._requestedCamera=`back`);this.status===`opened`?(await this.close(),await this.open()):this.status===`paused`&&(this._cameraChangedWhenPaused=!0)}async requestResolution(t,n){let r={};if(typeof t==`number`?(r.width=t,typeof n==`number`&&(r.height=n)):Array.isArray(t)?(t[0]&&(r.width=t[0]),t[1]&&(r.height=t[1])):t?((t=JSON.parse(JSON.stringify(t))).width&&(r.width=t.width),t.height&&(r.height=t.height),t.aspectRatio&&(r.aspectRatio=t.aspectRatio)):t===null?r=null:t===void 0&&(r=bt),this._requestedResolution=r,this.status===`opened`)if(e._bReopenWhenChangeResolution)await this.close(),await this.open();else{e._delayBeforeApplyConstraints&&await new Promise(t=>setTimeout(t,e._delayBeforeApplyConstraints)),await this.track.applyConstraints(at(at({},this._requestedCamera),r));let t=this.track.getSettings(),n=0;for(;++n<e._countEnsureResolution&&!(t.width===this.video.videoWidth&&t.height===this.video.videoHeight||t.height===this.video.videoWidth&&t.width===this.video.videoHeight);)await new Promise(e=>setTimeout(e,100));this._callOpenedListeners()}else this.status===`paused`&&(e._bReopenWhenChangeResolution?this._cameraChangedWhenPaused=!0:(e._delayBeforeApplyConstraints&&await new Promise(t=>setTimeout(t,e._delayBeforeApplyConstraints)),await this.track.applyConstraints(at(at({},this._requestedCamera),r))))}async applyConstraints(e){this.track&&this._requestedCamera!==`c