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iot-wap
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dist
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assets
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Index3-986cd5fa.js

Index3-986cd5fa.js 69 KB
История Исходник

123 
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0?r.mozSrcObject=y:window.URL.createObjectURL?r.src=window.URL.createObjectURL(y):window.webkitURL?r.src=window.webkitURL.createObjectURL(y):r.src=y.id,r.play(),console.debug("[vue-qrcode-reader] waiting for video element to load"),await Promise.race([Hr(r,"loadeddata"),wr(6e3).then(()=>{throw new Xo})]),console.debug("[vue-qrcode-reader] video element loaded"),await wr(500);const[_]=y.getVideoTracks(),h=(p=(f=_==null?void 0:_.getCapabilities)==null?void 0:f.call(_))!=null?p:{};let w=!1;return a&&h.torch&&(await _.applyConstraints({advanced:[{torch:!0}]}),w=!0),console.debug("[vue-qrcode-reader] camera ready"),{type:"start",data:{videoEl:r,stream:y,capabilities:h,constraints:i,isTorchOn:w}}}async function xi(r,{constraints:i,torch:a,restart:c=!1}){Ee=Ee.then(p=>{if(p.type==="start"){const{data:{videoEl:y,stream:_,constraints:h,isTorchOn:w}}=p;return!c&&r===y&&i===h&&a===w?p:Zr(y,_,w).then(()=>$r(r,i,a))}else if(p.type==="stop"||p.type==="failed")return $r(r,i,a);Tr()}).catch(p=>(console.debug(`[vue-qrcode-reader] starting camera failed with "${p}"`),{type:"failed",error:p}));const f=await Ee;if(f.type==="stop")throw new Error("Something went wrong with the camera task queue (start task).");if(f.type==="failed")throw f.error;if(f.type==="start")return f.data.capabilities;Tr()}async function Zr(r,i,a){console.debug("[vue-qrcode-reader] stopping camera"),r.src="",r.srcObject=null,r.load(),await Hr(r,"error");for(const c of i.getTracks())a!=null||await c.applyConstraints({advanced:[{torch:!1}]}),i.removeTrack(c),c.stop();return{type:"stop",data:{}}}async function at(){if(Ee=Ee.then(r=>{if(r.type==="stop"||r.type==="failed")return r;const{data:{videoEl:i,stream:a,isTorchOn:c}}=r;return Zr(i,a,c)}),(await Ee).type==="start")throw new Error("Something went wrong with the camera task queue (stop task).")}const ji=_r({__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=he(a.constraints),p=he(a.formats);Ue(()=>a.constraints,(R,O)=>{JSON.stringify(R)!==JSON.stringify(O)&&(f.value=R)},{deep:!0}),Ue(()=>a.formats,(R,O)=>{JSON.stringify(R)!==JSON.stringify(O)&&(p.value=R)},{deep:!0});const y=he(),_=he(),h=he(),w=he(!1),T=he(!1);fo(()=>{T.value=!0}),ho(()=>{at()});const b=Rt(()=>({torch:a.torch,constraints:f.value,shouldStream:T.value&&!a.paused}));Ue(b,async R=>{const O=h.value;ce(O!==void 0,"cameraSettings watcher should never be triggered when component is not mounted. Thus video element should always be defined.");const M=y.value;ce(M!==void 0,"cameraSettings watcher should never be triggered when component is not mounted. Thus canvas should always be defined.");const le=M.getContext("2d");if(ce(le!==null,"if cavnas is defined, canvas 2d context should also be non-null"),R.shouldStream){at(),w.value=!1;try{const ae=await xi(O,R);T.value?(w.value=!0,c("camera-on",ae)):await at()}catch(ae){c("error",ae)}}else M.width=O.videoWidth,M.height=O.videoHeight,le.drawImage(O,0,0,O.videoWidth,O.videoHeight),at(),w.value=!1,c("camera-off")},{deep:!0}),Ue(p,R=>{T.value&&Ko(R)});const j=Rt(()=>b.value.shouldStream&&w.value);Ue(j,R=>{if(R){ce(y.value!==void 0,"shouldScan watcher should only be triggered when component is mounted. Thus pause frame canvas is defined"),D(y.value),ce(_.value!==void 0,"shouldScan watcher should only be triggered when component is mounted. Thus tracking canvas is defined"),D(_.value);const O=()=>a.track===void 0?500:40;ce(h.value!==void 0,"shouldScan watcher should only be triggered when component is mounted. Thus video element is defined"),Zo(h.value,{detectHandler:M=>c("detect",M),formats:p.value,locateHandler:x,minDelay:O()})}});const D=R=>{const O=R.getContext("2d");ce(O!==null,"canvas 2d context should always be non-null"),O.clearRect(0,0,R.width,R.height)},x=R=>{const O=_.value;ce(O!==void 0,"onLocate handler should only be called when component is mounted. Thus tracking canvas is always defined.");const M=h.value;if(ce(M!==void 0,"onLocate handler should only be called when component is mounted. Thus video element is always defined."),R.length===0||a.track===void 0)D(O);else{const le=M.offsetWidth,ae=M.offsetHeight,Ce=M.videoWidth,Te=M.videoHeight,Me=Math.max(le/Ce,ae/Te),Ae=Ce*Me,He=Te*Me,ct=Ae/Ce,ut=He/Te,lt=(le-Ae)/2,dt=(ae-He)/2,xe=({x:de,y:X})=>({x:Math.floor(de*ct),y:Math.floor(X*ut)}),ee=({x:de,y:X})=>({x:Math.floor(de+lt),y:Math.floor(X+dt)}),ye=R.map(de=>{const{boundingBox:X,cornerPoints:ht}=de,{x:Ne,y:fe}=ee(xe({x:X.x,y:X.y})),{x:Ve,y:pt}=xe({x:X.width,y:X.height});return{...de,cornerPoints:ht.map(Be=>ee(xe(Be))),boundingBox:DOMRectReadOnly.fromRect({x:Ne,y:fe,width:Ve,height:pt})}});O.width=M.offsetWidth,O.height=M.offsetHeight;const ft=O.getContext("2d");a.track(ye,ft)}},F={width:"100%",height:"100%",position:"relative","z-index":"0"},I={width:"100%",height:"100%",position:"absolute",top:"0",left:"0"},z={width:"100%",height:"100%","object-fit":"cover"},ue=Rt(()=>j.value?z:{...z,visibility:"hidden",position:"absolute"});return(R,O)=>(Sr(),Pr("div",{style:F},[be("video",{ref_key:"videoRef",ref:h,style:po(ue.value),autoplay:"",muted:"",playsinline:""},null,4),vo(be("canvas",{id:"qrcode-stream-pause-frame",ref_key:"pauseFrameRef",ref:y,style:z},null,512),[[mo,!j.value]]),be("canvas",{id:"qrcode-stream-tracking-layer",ref_key:"trackingLayerRef",ref:_,style:I},null,512),be("div",{style:I},[yo(R.$slots,"default")])]))}}),Di={style:{height:"100vh",width:"100vw"}},Ri={style:{padding:"20px 16px"}},ki=be("span",null,"扫码结果：",-1),Ii=_r({__name:"Index3",setup(r){const i=he(""),a=async f=>{try{await f}catch(p){console.log(p)}},c=f=>{i.value=f};return(f,p)=>(Sr(),Pr("div",Di,[be("div",Ri,[ki,be("span",null,go(i.value),1)]),wo(bo(ji),{onDecode:c,onInit:a})]))}});export{Ii as default};
    4.