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Index3-d0c533aa.js

Index3-d0c533aa.js 73 KB
История Исходник

123 
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Li=kr({__name:"QrcodeStream",props:{constraints:{type:Object,default(){return{facingMode:"environment"}}},formats:{type:Array,default:()=>["qr_code"]},paused:{type:Boolean,default:!1},torch:{type:Boolean,default:!1},track:{type:Function}},emits:["detect","camera-on","camera-off","error"],setup(r,{emit:i}){const a=r,c=i,f=te(a.constraints),p=te(a.formats);He(()=>a.constraints,(A,P)=>{JSON.stringify(A)!==JSON.stringify(P)&&(f.value=A)},{deep:!0}),He(()=>a.formats,(A,P)=>{JSON.stringify(A)!==JSON.stringify(P)&&(p.value=A)},{deep:!0});const m=te(),S=te(),h=te(),w=te(!1),C=te(!1);go(()=>{C.value=!0}),wo(()=>{ct()});const b=ut(()=>({torch:a.torch,constraints:f.value,shouldStream:C.value&&!a.paused}));He(b,async A=>{const P=h.value;fe(P!==void 0,"cameraSettings watcher should never be triggered when component is not mounted. Thus video element should always be defined.");const E=m.value;fe(E!==void 0,"cameraSettings watcher should never be triggered when component is not mounted. Thus canvas should always be defined.");const K=E.getContext("2d");if(fe(K!==null,"if cavnas is defined, canvas 2d context should also be non-null"),A.shouldStream){ct(),w.value=!1;try{const ne=await Ui(P,A);C.value?(w.value=!0,c("camera-on",ne)):await ct()}catch(ne){c("error",ne)}}else E.width=P.videoWidth,E.height=P.videoHeight,K.drawImage(P,0,0,P.videoWidth,P.videoHeight),ct(),w.value=!1,c("camera-off")},{deep:!0}),He(p,A=>{C.value&&ii(A)});const R=ut(()=>b.value.shouldStream&&w.value);He(R,A=>{if(A){fe(m.value!==void 0,"shouldScan watcher should only be triggered when component is mounted. Thus pause frame canvas is defined"),F(m.value),fe(S.value!==void 0,"shouldScan watcher should only be triggered when component is mounted. Thus tracking canvas is defined"),F(S.value);const P=()=>a.track===void 0?500:40;fe(h.value!==void 0,"shouldScan watcher should only be triggered when component is mounted. Thus video element is defined"),si(h.value,{detectHandler:E=>c("detect",E),formats:p.value,locateHandler:k,minDelay:P()})}});const F=A=>{const P=A.getContext("2d");fe(P!==null,"canvas 2d context should always be non-null"),P.clearRect(0,0,A.width,A.height)},k=A=>{const P=S.value;fe(P!==void 0,"onLocate handler should only be called when component is mounted. Thus tracking canvas is always defined.");const E=h.value;if(fe(E!==void 0,"onLocate handler should only be called when component is mounted. Thus video element is always defined."),A.length===0||a.track===void 0)F(P);else{const K=E.offsetWidth,ne=E.offsetHeight,Te=E.videoWidth,Se=E.videoHeight,Ae=Math.max(K/Te,ne/Se),ke=Te*Ae,Be=Se*Ae,pt=ke/Te,vt=Be/Se,mt=(K-ke)/2,yt=(ne-Be)/2,De=({x:he,y:ee})=>({x:Math.floor(he*pt),y:Math.floor(ee*vt)}),oe=({x:he,y:ee})=>({x:Math.floor(he+mt),y:Math.floor(ee+yt)}),ge=A.map(he=>{const{boundingBox:ee,cornerPoints:wt}=he,{x:ze,y:pe}=oe(De({x:ee.x,y:ee.y})),{x:qe,y:bt}=De({x:ee.width,y:ee.height});return{...he,cornerPoints:wt.map(Je=>oe(De(Je))),boundingBox:DOMRectReadOnly.fromRect({x:ze,y:pe,width:qe,height:bt})}});P.width=E.offsetWidth,P.height=E.offsetHeight;const gt=P.getContext("2d");a.track(ge,gt)}},W={width:"100%",height:"100%",position:"relative","z-index":"0"},x={width:"100%",height:"100%",position:"absolute",top:"0",left:"0"},$={width:"100%",height:"100%","object-fit":"cover"},j=ut(()=>R.value?$:{...$,visibility:"hidden",position:"absolute"});return(A,P)=>(Ce(),_e("div",{style:W},[X("video",{ref_key:"videoRef",ref:h,style:bo(j.value),autoplay:"",muted:"",playsinline:""},null,4),lt(X("canvas",{id:"qrcode-stream-pause-frame",ref_key:"pauseFrameRef",ref:m,style:$},null,512),[[Co,!R.value]]),X("canvas",{id:"qrcode-stream-tracking-layer",ref_key:"trackingLayerRef",ref:S,style:x},null,512),X("div",{style:x},[_o(A.$slots,"default")])]))}}),Hi=r=>(Po("data-v-7c1f2a40"),r=r(),Eo(),r),Ni=["value"],Vi=["value"],Bi=Hi(()=>X("br",null,null,-1)),zi=["onUpdate:modelValue","id"],qi=["for"],Ji={class:"error"},Yi={class:"decode-result"},Gi=kr({__name:"Index3",setup(r){const i=te("");function a(x){console.log(x),i.value=JSON.stringify(x.map($=>$.rawValue))}const c=te({facingMode:"environment"}),f=[{label:"rear camera",constraints:{facingMode:"environment"}},{label:"front camera",constraints:{facingMode:"user"}}],p=te(f);async function m(){const $=(await navigator.mediaDevices.enumerateDevices()).filter(({kind:j})=>j==="videoinput");p.value=[...f,...$.map(({deviceId:j,label:A})=>({label:`${A} (ID: ${j})`,constraints:{deviceId:j}}))],k.value=""}function S(x,$){for(const j of x){const[A,...P]=j.cornerPoints;$.strokeStyle="red",$.beginPath(),$.moveTo(A.x,A.y);for(const{x:E,y:K}of P)$.lineTo(E,K);$.lineTo(A.x,A.y),$.closePath(),$.stroke()}}function h(x,$){for(const j of x){const{boundingBox:{x:A,y:P,width:E,height:K}}=j;$.lineWidth=2,$.strokeStyle="#007bff",$.strokeRect(A,P,E,K)}}function w(x,$){for(const j of x){const{boundingBox:A,rawValue:P}=j,E=A.x+A.width/2,K=A.y+A.height/2,ne=Math.max(12,50*A.width/$.canvas.width);$.font=`bold ${ne}px sans-serif`,$.textAlign="center",$.lineWidth=3,$.strokeStyle="#35495e",$.strokeText(j.rawValue,E,K),$.fillStyle="#5cb984",$.fillText(P,E,K)}}const C=[{text:"nothing (default)",value:void 0},{text:"outline",value:S},{text:"centered text",value:w},{text:"bounding box",value:h}],b=te(C[1]),R=te({aztec:!1,code_128:!1,code_39:!1,code_93:!1,codabar:!1,databar:!1,databar_expanded:!1,data_matrix:!1,dx_film_edge:!1,ean_13:!1,ean_8:!1,itf:!1,maxi_code:!1,micro_qr_code:!1,pdf417:!1,qr_code:!0,rm_qr_code:!1,upc_a:!1,upc_e:!1,linear_codes:!1,matrix_codes:!1}),F=ut(()=>Object.keys(R.value).filter(x=>R.value[x])),k=te("");function W(x){k.value=`[${x.name}]: `,x.name==="NotAllowedError"?k.value+="you need to grant camera access permission":x.name==="NotFoundError"?k.value+="no camera on this device":x.name==="NotSupportedError"?k.value+="secure context required (HTTPS, localhost)":x.name==="NotReadableError"?k.value+="is the camera already in use?":x.name==="OverconstrainedError"?k.value+="installed cameras are not suitable":x.name==="StreamApiNotSupportedError"?k.value+="Stream API is not supported in this browser":x.name==="InsecureContextError"?k.value+="Camera access is only permitted in secure context. Use HTTPS or localhost rather than HTTP.":k.value+=x.message}return(x,$)=>(Ce(),_e("div",null,[X("p",null,[st(" Modern mobile phones often have a variety of different cameras installed (e.g. front, rear, wide-angle, infrared, desk-view). The one picked by default is sometimes not the best choice. For more fine-grained control, you can select a camera by device constraints or by the device ID: "),lt(X("select",{"onUpdate:modelValue":$[0]||($[0]=j=>c.value=j)},[(Ce(!0),_e(Lt,null,Ht(p.value,j=>(Ce(),_e("option",{key:j.label,value:j.constraints},Ne(j.label),9,Ni))),128))],512),[[Cr,c.value]])]),X("p",null,[st(" Detected codes are visually highlighted in real-time. Use the following dropdown to change the flavor: "),lt(X("select",{"onUpdate:modelValue":$[1]||($[1]=j=>b.value=j)},[(Ce(),_e(Lt,null,Ht(C,j=>X("option",{key:j.text,value:j},Ne(j.text),9,Vi)),64))],512),[[Cr,b.value]])]),X("p",null,[st(" By default only QR-codes are detected but a variety of other barcode formats are also supported. You can select one or multiple but the more you select the more expensive scanning becomes: "),Bi,(Ce(!0),_e(Lt,null,Ht(Object.keys(R.value),j=>(Ce(),_e("span",{key:j,class:"barcode-format-checkbox"},[lt(X("input",{type:"checkbox","onUpdate:modelValue":A=>R.value[j]=A,id:j},null,8,zi),[[$o,R.value[j]]]),X("label",{for:j},Ne(j),9,qi)]))),128))]),X("p",Ji,Ne(k.value),1),X("p",Yi,[st(" Last result: "),X("b",null,Ne(i.value),1)]),X("div",null,[To(So(Li),{constraints:c.value,track:b.value.value,formats:F.value,onError:W,onDetect:a,onCameraOn:m},null,8,["constraints","track","formats"])])]))}});const Xi=Oo(Gi,[["__scopeId","data-v-7c1f2a40"]]);export{Xi as default};
    4.