Create QrCode component and use for recipient (#78)
This commit is contained in:
Kenny Tran
Chi Kei Chan
parent
4cb00d9528
commit
6464e44310
67
public/libraries/qr-scanner/qr-scanner-worker.min.js
vendored
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67
public/libraries/qr-scanner/qr-scanner-worker.min.js
vendored
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(function(){
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'use strict';var aa="function"==typeof Object.defineProperties?Object.defineProperty:function(d,c,a){d!=Array.prototype&&d!=Object.prototype&&(d[c]=a.value)},e="undefined"!=typeof window&&window===this?this:"undefined"!=typeof global&&null!=global?global:this;function ba(){ba=function(){};e.Symbol||(e.Symbol=da)}var da=function(){var d=0;return function(c){return"jscomp_symbol_"+(c||"")+d++}}();
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Oa("String.prototype.startsWith",function(d){return d?d:function(c,a){if(null==this)throw new TypeError("The 'this' value for String.prototype.startsWith must not be null or undefined");if(c instanceof RegExp)throw new TypeError("First argument to String.prototype.startsWith must not be a regular expression");var b=this+"";c+="";var g=b.length,d=c.length;a=Math.max(0,Math.min(a|0,b.length));for(var h=0;h<d&&a<g;)if(b[a++]!=c[h++])return!1;return h>=d}});
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Oa("Array.prototype.find",function(d){return d?d:function(c,a){a:{var b=this;b instanceof String&&(b=String(b));for(var g=b.length,d=0;d<g;d++){var h=b[d];if(c.call(a,h,d,b)){c=h;break a}}c=void 0}return c}});
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self.onmessage=function(d){var c=d.data.data;switch(d.data.type){case "setDebug":Pa=c;break;case "decode":var a=null;try{Qa=c;f=c.width;n=c.height;var b=Qa.data,g=0,k=new Uint8ClampedArray(b.buffer,g,f*n);g+=f*n;var h=new Uint8ClampedArray(b.buffer,g,f*n);g+=f*n;var l=va(Ra(f,n));l.next();for(var m=l.next().value,p=l.next().value,w=new Uint8ClampedArray(b.buffer,g,m*p),q=f,u=n,t=0;t<u;t++)for(var x=0;x<q;x++){var v=t*q+x,ca=4*v;k[v]=Sa.red*b[ca]+Sa.blue*b[ca+1]+Sa.green*b[ca+2]+128>>8}var ea=h,Q=
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w,R=f,E=n;ea=void 0===ea?k:ea;Q=void 0===Q?null:Q;var S=va(Ra(R,E)),z=S.next().value,C=S.next().value,X=S.next().value;if(Q){if(!(Q instanceof Uint8ClampedArray)||Q.byteLength!==C*X)throw Error("QR Error: Illegal Buffer.");var Y=Q}else Y=new Uint8ClampedArray(C*X);for(var U=0;U<X;++U)for(var V=0;V<C;++V){for(var M=255,Z=0,Va=Math.min(U*z,E-z)*R+Math.min(V*z,R-z),Wa=0;Wa<z;++Wa){for(var wa=0;wa<z;++wa){var fa=k[Va+wa];fa<M&&(M=fa);fa>Z&&(Z=fa)}Va+=R}if(Z-M>Ta){var Xa=(M+Z)/2;var xa=Math.min(255,Xa+
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(M+Z)/4,1.1*Xa)}else if(0===V||0===U)xa=M-1;else{var ya=U*C+V,Ya=(Y[ya-1]+Y[ya-C]+C[ya-C-1])/3;xa=Ya>M?Ya:M-1}Y[U*C+V]=xa}for(var ha=0;ha<X;++ha)for(var ia=0;ia<C;++ia){for(var Za=0,za=-2;2>=za;++za)for(var Aa=-2;2>=Aa;++Aa)Za+=Y[Math.max(0,Math.min(X-1,ha+Aa))*C+Math.max(0,Math.min(C-1,ia+za))];var $a=k,Ba=R,Kb=Za/25,ja=ea;ja=void 0===ja?$a:ja;for(var ab=Math.min(ha*z,E-z)*Ba+Math.min(ia*z,Ba-z),bb=0;bb<z;++bb){for(var Ca=0;Ca<z;++Ca){var cb=ab+Ca;ja[cb]=$a[cb]<=Kb}ab+=Ba}}if(Pa){var F=new ImageData(new Uint8ClampedArray(f*
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function Db(d){if(1>d||40<d)throw Error("QR Error: ArgumentException");return Cb[d-1]}function Eb(d){for(var c=4294967295,a=0,b=0;b<Bb.length;b++){var g=Bb[b];if(g==d)return Db(b+7);g=Fb(d,g);g<c&&(a=b+7,c=g)}return 3>=c?Db(a):null};function Gb(d,c,a,b,g,k,h,l,m){this.o=d;this.s=b;this.u=h;this.v=c;this.w=g;this.A=l;this.B=a;this.C=k;this.D=m;this.sb=function(b){for(var a=b.length,c=this.o,g=this.s,d=this.u,k=this.v,h=this.w,l=this.A,m=this.B,p=this.C,R=this.D,E=0;E<a;E+=2){var S=b[E],z=b[E+1],C=d*S+l*z+R;b[E]=(c*S+k*z+m)/C;b[E+1]=(g*S+h*z+p)/C}};this.Ha=function(){return new Gb(this.w*this.D-this.A*this.C,this.A*this.B-this.v*this.D,this.v*this.C-this.w*this.B,this.u*this.C-this.s*this.D,this.o*this.D-this.u*this.B,this.s*this.B-
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function Ua(d){this.H=d;this.U=null;this.Ca=function(c,a,b,g){var d=Math.abs(g-a)>Math.abs(b-c);if(d){var h=c;c=a;a=h;h=b;b=g;g=h}var l=Math.abs(b-c),m=Math.abs(g-a),p=-l>>1,w=a<g?1:-1,q=c<b?1:-1,u=0,t=c;for(h=a;t!=b;t+=q){var x=d?h:t,v=d?t:h;1==u?this.H[x+v*f]&&u++:this.H[x+v*f]||u++;if(3==u)return g=t-c,a=h-a,Math.sqrt(g*g+a*a);p+=m;if(0<p){if(h==g)break;h+=w;p-=l}}c=b-c;a=g-a;return Math.sqrt(c*c+a*a)};this.Da=function(c,a,b,g){var d=this.Ca(c,a,b,g),h=1;b=c-(b-c);0>b?(h=c/(c-b),b=0):b>=f&&(h=
|
||||
(f-1-c)/(b-c),b=f-1);g=Math.floor(a-(g-a)*h);h=1;0>g?(h=a/(a-g),g=0):g>=n&&(h=(n-1-a)/(g-a),g=n-1);b=Math.floor(c+(b-c)*h);d+=this.Ca(c,a,b,g);return d-1};this.qa=function(c,a){var b=this.Da(Math.floor(c.g()),Math.floor(c.h()),Math.floor(a.g()),Math.floor(a.h()));c=this.Da(Math.floor(a.g()),Math.floor(a.h()),Math.floor(c.g()),Math.floor(c.h()));return isNaN(b)?c/7:isNaN(c)?b/7:(b+c)/14};this.Ja=function(c,a,b){return(this.qa(c,a)+this.qa(c,b))/2};this.sa=function(c,a){var b=c.g()-a.g();c=c.h()-a.h();
|
||||
return Math.sqrt(b*b+c*c)};this.Ka=function(c,a,b,g){c=(Math.round(this.sa(c,a)/g)+Math.round(this.sa(c,b)/g)>>1)+7;switch(c&3){case 0:c++;break;case 2:c--;break;case 3:throw Error("QR Error: in detector");}return c};this.Qa=function(c,a,b,g){g=Math.floor(g*c);var d=Math.max(0,a-g);a=Math.min(f-1,a+g);if(a-d<3*c)throw Error("QR Error: in detector");var h=Math.max(0,b-g);return(new Jb(this.H,d,h,a-d,Math.min(n-1,b+g)-h,c,this.U)).find()};this.La=function(c,a,b,g,d){d-=3.5;var k;if(null!=g){var l=g.g();
|
||||
g=g.h();var m=k=d-3}else l=a.g()-c.g()+b.g(),g=a.h()-c.h()+b.h(),m=k=d;return Hb(c.g(),c.h(),a.g(),a.h(),l,g,b.g(),b.h()).pb(Hb(3.5,3.5,d,3.5,m,k,3.5,d).Ha())};this.lb=function(c,a,b){for(var g=new Ab(b),d=Array(b<<1),h=0;h<b;h++){for(var l=d.length,m=h+.5,p=0;p<l;p+=2)d[p]=(p>>1)+.5,d[p+1]=m;a.sb(d);m=d;for(var w=f,q=n,u=!0,t=0;t<m.length&&u;t+=2){var x=Math.floor(m[t]),v=Math.floor(m[t+1]);if(-1>x||x>w||-1>v||v>q)throw Error("QR Error: Error.checkAndNudgePoints");u=!1;-1==x?(m[t]=0,u=!0):x==w&&
|
||||
(m[t]=w-1,u=!0);-1==v?(m[t+1]=0,u=!0):v==q&&(m[t+1]=q-1,u=!0)}u=!0;for(t=m.length-2;0<=t&&u;t-=2){x=Math.floor(m[t]);v=Math.floor(m[t+1]);if(-1>x||x>w||-1>v||v>q)throw Error("QR Error: Error.checkAndNudgePoints");u=!1;-1==x?(m[t]=0,u=!0):x==w&&(m[t]=w-1,u=!0);-1==v?(m[t+1]=0,u=!0):v==q&&(m[t+1]=q-1,u=!0)}try{for(p=0;p<l;p+=2)c[Math.floor(d[p])+f*Math.floor(d[p+1])]&&g.nb(p>>1,h)}catch(ca){throw Error("QR Error: Error.checkAndNudgePoints");}}return g};this.ib=function(c){var a=c.qb,b=c.rb;c=c.Ga;var g=
|
||||
this.Ja(a,b,c);if(1>g)throw Error("QR Error: in detector");var d=this.Ka(a,b,c,g);if(1!=d%4)throw Error("QR Error: Error getProvisionalVersionForDimension");try{var h=Db(d-17>>2)}catch(w){throw Error("QR Error: Error getVersionForNumber");}var l=h.fa()-7,m=null;if(0<h.ca.length){l=1-3/l;h=Math.floor(a.g()+l*(b.g()-a.g()+c.g()-a.g()));l=Math.floor(a.h()+l*(b.h()-a.h()+c.h()-a.h()));for(var p=4;16>=p;p<<=1)try{m=this.Qa(g,h,l,p);break}catch(w){}}a=this.lb(this.H,this.La(a,b,c,m,d),d);return new Ib(a)};
|
||||
this.Oa=function(){var c=(new Lb).Ta(this.H);return this.ib(c)}};var Mb=[[21522,0],[20773,1],[24188,2],[23371,3],[17913,4],[16590,5],[20375,6],[19104,7],[30660,8],[29427,9],[32170,10],[30877,11],[26159,12],[25368,13],[27713,14],[26998,15],[5769,16],[5054,17],[7399,18],[6608,19],[1890,20],[597,21],[3340,22],[2107,23],[13663,24],[12392,25],[16177,26],[14854,27],[9396,28],[8579,29],[11994,30],[11245,31]],L=[0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4];function Ob(d){var c=d>>3&3;if(0>c||c>=Sb.length)throw Error("QR Error: ArgumentException");this.Pa=Sb[c];this.Na=d&7}
|
||||
function Fb(d,c){d^=c;return L[d&15]+L[O(d,4)&15]+L[O(d,8)&15]+L[O(d,12)&15]+L[O(d,16)&15]+L[O(d,20)&15]+L[O(d,24)&15]+L[O(d,28)&15]}function Tb(d){var c=Ub(d);return null!=c?c:Ub(d^21522)}function Ub(d){for(var c=4294967295,a=0,b=0;b<Mb.length;b++){var g=Mb[b],k=g[0];if(k==d)return new Ob(g[1]);k=Fb(d,k);k<c&&(a=g[1],c=k)}return 3>=c?new Ob(a):null};function Vb(d,c,a){this.gb=d;this.i=c;this.name=a;this.getName=function(){return this.name}}var Sb=[new Vb(1,0,"M"),new Vb(0,1,"L"),new Vb(3,2,"H"),new Vb(2,3,"Q")];function Ab(d){var c;c||(c=d);if(1>d||1>c)throw Error("QR Error: Both dimensions must be greater than 0");this.width=d;this.height=c;var a=d>>5;0!=(d&31)&&a++;this.X=a;this.i=Array(a*c);for(d=0;d<this.i.length;d++)this.i[d]=0;this.ea=function(){if(this.width!=this.height)throw Error("QR Error: Can't call getDimension() on a non-square matrix");return this.width};this.ga=function(b,a){return 0!=(O(this.i[a*this.X+(b>>5)],b&31)&1)};this.nb=function(b,a){this.i[a*this.X+(b>>5)]|=1<<(b&31)};this.M=function(b,
|
||||
a){this.i[a*this.X+(b>>5)]^=1<<(b&31)};this.clear=function(){for(var b=this.i.length,a=0;a<b;a++)this.i[a]=0};this.P=function(b,a,c,d){if(0>a||0>b)throw Error("QR Error: Left and top must be nonnegative");if(1>d||1>c)throw Error("QR Error: Height and width must be at least 1");c=b+c;d=a+d;if(d>this.height||c>this.width)throw Error("QR Error: The region must fit inside the matrix");for(;a<d;a++)for(var g=a*this.X,k=b;k<c;k++)this.i[g+(k>>5)]|=1<<(k&31)}};function ub(d,c){this.ya=d;this.T=c};function tb(d){var c=d.ea();if(21>c||1!=(c&3))throw Error("QR Error: Error BitMatrixParser");this.V=d;this.O=this.J=null;this.K=function(a,b,c){return this.V.ga(a,b)?c<<1|1:c<<1};this.Aa=function(){if(null!=this.O)return this.O;for(var a=0,b=0;6>b;b++)a=this.K(b,8,a);a=this.K(7,8,a);a=this.K(8,8,a);a=this.K(8,7,a);for(b=5;0<=b;b--)a=this.K(8,b,a);this.O=Tb(a);if(null!=this.O)return this.O;var c=this.V.ea();a=0;var d=c-8;for(b=c-1;b>=d;b--)a=this.K(b,8,a);for(b=c-7;b<c;b++)a=this.K(8,b,a);this.O=Tb(a);
|
||||
if(null!=this.O)return this.O;throw Error("QR Error: Error readFormatInformation");};this.Ba=function(){if(null!=this.J)return this.J;var a=this.V.ea(),b=a-17>>2;if(6>=b)return Db(b);b=0;for(var c=a-11,d=5;0<=d;d--)for(var h=a-9;h>=c;h--)b=this.K(h,d,b);this.J=Eb(b);if(null!=this.J&&this.J.fa()==a)return this.J;b=0;for(h=5;0<=h;h--)for(d=a-9;d>=c;d--)b=this.K(h,d,b);this.J=Eb(b);if(null!=this.J&&this.J.fa()==a)return this.J;throw Error("QR Error: Error readVersion");};this.jb=function(){var a=this.Aa(),
|
||||
b=this.Ba();a=a.Na;if(0>a||7<a)throw Error("QR Error: System.ArgumentException");var c=Wb[a];a=this.V.ea();c.R(this.V,a);c=b.Ia();for(var d=!0,h=Array(b.na),l=0,m=0,p=0,w=a-1;0<w;w-=2){6==w&&w--;for(var q=0;q<a;q++)for(var u=d?a-1-q:q,t=0;2>t;t++)c.ga(w-t,u)||(p++,m<<=1,this.V.ga(w-t,u)&&(m|=1),8==p&&(h[l++]=m,m=p=0));d^=1}if(l!=b.na)throw Error("QR Error: Error readCodewords");return h}};var Wb=[new function(){this.R=function(d,c){for(var a=0;a<c;a++)for(var b=0;b<c;b++)this.j(a,b)&&d.M(b,a)};this.j=function(d,c){return 0==(d+c&1)}},new function(){this.R=function(d,c){for(var a=0;a<c;a++)for(var b=0;b<c;b++)this.j(a,b)&&d.M(b,a)};this.j=function(d){return 0==(d&1)}},new function(){this.R=function(d,c){for(var a=0;a<c;a++)for(var b=0;b<c;b++)this.j(a,b)&&d.M(b,a)};this.j=function(d,c){return 0==c%3}},new function(){this.R=function(d,c){for(var a=0;a<c;a++)for(var b=0;b<c;b++)this.j(a,
|
||||
b)&&d.M(b,a)};this.j=function(d,c){return 0==(d+c)%3}},new function(){this.R=function(d,c){for(var a=0;a<c;a++)for(var b=0;b<c;b++)this.j(a,b)&&d.M(b,a)};this.j=function(d,c){return 0==(O(d,1)+c/3&1)}},new function(){this.R=function(d,c){for(var a=0;a<c;a++)for(var b=0;b<c;b++)this.j(a,b)&&d.M(b,a)};this.j=function(d,c){d*=c;return 0==(d&1)+d%3}},new function(){this.R=function(d,c){for(var a=0;a<c;a++)for(var b=0;b<c;b++)this.j(a,b)&&d.M(b,a)};this.j=function(d,c){d*=c;return 0==((d&1)+d%3&1)}},new function(){this.R=
|
||||
function(d,c){for(var a=0;a<c;a++)for(var b=0;b<c;b++)this.j(a,b)&&d.M(b,a)};this.j=function(d,c){return 0==((d+c&1)+d*c%3&1)}}];function P(d,c){if(null==c||0==c.length)throw Error("QR Error: System.ArgumentException");this.a=d;var a=c.length;if(1<a&&0==c[0]){for(var b=1;b<a&&0==c[b];)b++;if(b==a)this.f=d.l().f;else{this.f=Array(a-b);for(a=0;a<this.f.length;a++)this.f[a]=0;for(a=0;a<this.f.length;a++)this.f[a]=c[b+a]}}else this.f=c;this.l=function(){return 0==this.f[0]};this.I=function(){return this.f.length-1};this.Z=function(b){return this.f[this.f.length-1-b]};this.la=function(b){if(0==b)return this.Z(0);var a=this.f.length;
|
||||
if(1==b){for(var c=b=0;c<a;c++)b^=this.f[c];return b}var d=this.f[0];for(c=1;c<a;c++)d=Xb(this.a.multiply(b,d),this.f[c]);return d};this.ba=function(b){if(this.a!=b.a)throw Error("QR Error: GF256Polys do not have same GF256 field");if(this.l())return b;if(b.l())return this;var a=this.f;b=b.f;if(a.length>b.length){var c=a;a=b;b=c}c=Array(b.length);for(var g=b.length-a.length,m=0;m<g;m++)c[m]=b[m];for(m=g;m<b.length;m++)c[m]=a[m-g]^b[m];return new P(d,c)};this.wa=function(b){if(this.a!=b.a)throw Error("QR Error: GF256Polys do not have same GF256 field");
|
||||
if(this.l()||b.l())return this.a.l();var a=this.f,c=a.length;b=b.f;for(var d=b.length,g=Array(c+d-1),p=0;p<c;p++)for(var w=a[p],q=0;q<d;q++)g[p+q]=Xb(g[p+q],this.a.multiply(w,b[q]));return new P(this.a,g)};this.xa=function(b){if(0==b)return this.a.l();if(1==b)return this;for(var a=this.f.length,c=Array(a),d=0;d<a;d++)c[d]=this.a.multiply(this.f[d],b);return new P(this.a,c)};this.eb=function(b,a){if(0>b)throw Error("QR Error: System.ArgumentException");if(0==a)return this.a.l();var c=this.f.length;
|
||||
b=Array(c+b);for(var d=0;d<b.length;d++)b[d]=0;for(d=0;d<c;d++)b[d]=this.a.multiply(this.f[d],a);return new P(this.a,b)}};function Yb(d){this.Y=Array(256);this.aa=Array(256);for(var c=1,a=0;256>a;a++)this.Y[a]=c,c<<=1,256<=c&&(c^=d);for(a=0;255>a;a++)this.aa[this.Y[a]]=a;d=Array(1);d[0]=0;this.Ea=new P(this,Array(d));d=Array(1);d[0]=1;this.za=new P(this,Array(d));this.l=function(){return this.Ea};this.pa=function(b,a){if(0>b)throw Error("QR Error: System.ArgumentException");if(0==a)return this.Ea;b=Array(b+1);for(var c=0;c<b.length;c++)b[c]=0;b[0]=a;return new P(this,b)};this.exp=function(b){return this.Y[b]};this.log=
|
||||
function(b){if(0==b)throw Error("QR Error: System.ArgumentException");return this.aa[b]};this.inverse=function(b){if(0==b)throw Error("QR Error: System.ArithmeticException");return this.Y[255-this.aa[b]]};this.multiply=function(b,a){return 0==b||0==a?0:1==b?a:1==a?b:this.Y[(this.aa[b]+this.aa[a])%255]}}var Zb=new Yb(285);new Yb(301);function Xb(d,c){return d^c};var vb=new function(d){this.a=d;this.decode=function(c,a){for(var b=new P(this.a,c),d=Array(a),k=0;k<d.length;k++)d[k]=0;var h=!0;for(k=0;k<a;k++){var l=b.la(this.a.exp(k));d[d.length-1-k]=l;0!=l&&(h=!1)}if(!h)for(k=new P(this.a,d),a=this.kb(this.a.pa(a,1),k,a),k=a[1],a=this.Ra(a[0]),b=this.Sa(k,a),k=0;k<a.length;k++){d=c.length-1-this.a.log(a[k]);if(0>d)throw Error("QR Error: ReedSolomonException Bad error location");c[d]^=b[k]}};this.kb=function(c,a,b){if(c.I()<a.I()){var d=c;c=a;a=d}d=this.a.za;
|
||||
for(var k=this.a.l(),h=this.a.l(),l=this.a.za;a.I()>=Math.floor(b/2);){var m=c,p=d,w=h;c=a;d=k;h=l;if(c.l())throw Error("QR Error: r_{i-1} was zero");a=m;l=this.a.l();for(k=this.a.inverse(c.Z(c.I()));a.I()>=c.I()&&!a.l();){m=a.I()-c.I();var q=this.a.multiply(a.Z(a.I()),k);l=l.ba(this.a.pa(m,q));a=a.ba(c.eb(m,q))}k=l.wa(d).ba(p);l=l.wa(h).ba(w)}b=l.Z(0);if(0==b)throw Error("QR Error: ReedSolomonException sigmaTilde(0) was zero");b=this.a.inverse(b);c=l.xa(b);b=a.xa(b);return[c,b]};this.Ra=function(c){var a=
|
||||
c.I();if(1==a)return Array(c.Z(1));for(var b=Array(a),d=0,k=1;256>k&&d<a;k++)0==c.la(k)&&(b[d]=this.a.inverse(k),d++);if(d!=a)throw Error("QR Error: Error locator degree does not match number of roots");return b};this.Sa=function(c,a){for(var b=a.length,d=Array(b),k=0;k<b;k++){for(var h=this.a.inverse(a[k]),l=1,m=0;m<b;m++)k!=m&&(l=this.a.multiply(l,Xb(1,this.a.multiply(a[m],h))));d[k]=this.a.multiply(c.la(h),this.a.inverse(l))}return d}}(Zb);var xb,Qa=null,f=0,n=0,Pa=!1,$b=[[10,9,8,8],[12,11,16,10],[14,13,16,12]],Sa={red:77,blue:150,green:29};function O(d,c){return 0<=d?d>>c:(d>>c)+(2<<~c)};var ac=3,bc=57,cc=2;function dc(d){function c(b,a){var c=b.g()-a.g();b=b.h()-a.h();return Math.sqrt(c*c+b*b)}var a=c(d[0],d[1]),b=c(d[1],d[2]),g=c(d[0],d[2]);b>=a&&b>=g?(b=d[0],a=d[1],g=d[2]):g>=b&&g>=a?(b=d[1],a=d[0],g=d[2]):(b=d[2],a=d[0],g=d[1]);if(0>function(b,a,c){var d=a.x;a=a.y;return(c.x-d)*(b.y-a)-(c.y-a)*(b.x-d)}(a,b,g)){var k=a;a=g;g=k}d[0]=a;d[1]=b;d[2]=g}
|
||||
function ec(d,c,a){this.x=d;this.y=c;this.count=1;this.G=a;this.g=function(){return this.x};this.h=function(){return this.y};this.va=function(){this.count++};this.ha=function(b,a,c){return Math.abs(a-this.y)<=b&&Math.abs(c-this.x)<=b?(b=Math.abs(b-this.G),1>=b||1>=b/this.G):!1}}function fc(d){this.Ga=d[0];this.qb=d[1];this.rb=d[2]}
|
||||
function Lb(){this.H=null;this.c=[];this.ma=!1;this.L=[0,0,0,0,0];this.U=null;this.ta=function(){this.L[0]=0;this.L[1]=0;this.L[2]=0;this.L[3]=0;this.L[4]=0;return this.L};this.N=function(d){for(var c=0,a=0;5>a;a++){var b=d[a];if(0==b)return!1;c+=b}if(7>c)return!1;c=Math.floor(c/7);a=Math.floor(.7*c);return Math.abs(c-d[0])<a&&Math.abs(c-d[1])<a&&Math.abs(3*c-d[2])<3*a&&Math.abs(c-d[3])<a&&Math.abs(c-d[4])<a};this.W=function(d,c){return c-d[4]-d[3]-d[2]/2};this.ia=function(d,c,a,b){for(var g=this.H,
|
||||
k=n,h=this.ta(),l=d;0<=l&&g[c+l*f];)h[2]++,l--;if(0>l)return NaN;for(;0<=l&&!g[c+l*f]&&h[1]<=a;)h[1]++,l--;if(0>l||h[1]>a)return NaN;for(;0<=l&&g[c+l*f]&&h[0]<=a;)h[0]++,l--;if(h[0]>a)return NaN;for(l=d+1;l<k&&g[c+l*f];)h[2]++,l++;if(l==k)return NaN;for(;l<k&&!g[c+l*f]&&h[3]<a;)h[3]++,l++;if(l==k||h[3]>=a)return NaN;for(;l<k&&g[c+l*f]&&h[4]<a;)h[4]++,l++;return h[4]>=a||5*Math.abs(h[0]+h[1]+h[2]+h[3]+h[4]-b)>=2*b?NaN:this.N(h)?this.W(h,l):NaN};this.Ma=function(d,c,a,b){for(var g=this.H,k=f,h=this.ta(),
|
||||
l=d;0<=l&&g[l+c*f];)h[2]++,l--;if(0>l)return NaN;for(;0<=l&&!g[l+c*f]&&h[1]<=a;)h[1]++,l--;if(0>l||h[1]>a)return NaN;for(;0<=l&&g[l+c*f]&&h[0]<=a;)h[0]++,l--;if(h[0]>a)return NaN;for(l=d+1;l<k&&g[l+c*f];)h[2]++,l++;if(l==k)return NaN;for(;l<k&&!g[l+c*f]&&h[3]<a;)h[3]++,l++;if(l==k||h[3]>=a)return NaN;for(;l<k&&g[l+c*f]&&h[4]<a;)h[4]++,l++;return h[4]>=a||5*Math.abs(h[0]+h[1]+h[2]+h[3]+h[4]-b)>=b?NaN:this.N(h)?this.W(h,l):NaN};this.$=function(d,c,a){var b=d[0]+d[1]+d[2]+d[3]+d[4];a=this.W(d,a);c=this.ia(c,
|
||||
Math.floor(a),d[2],b);if(!isNaN(c)&&(a=this.Ma(Math.floor(a),Math.floor(c),d[2],b),!isNaN(a))){d=b/7;b=!1;for(var g=this.c.length,k=0;k<g;k++){var h=this.c[k];if(h.ha(d,c,a)){h.va();b=!0;break}}b||(a=new ec(a,c,d),this.c.push(a),null!=this.U&&this.U.Va(a));return!0}return!1};this.mb=function(){var d=this.c.length;if(3>d)throw Error("QR Error: Couldn't find enough finder patterns (found "+d+")");if(3<d){for(var c=0,a=0,b=0;b<d;b++){var g=this.c[b].G;c+=g;a+=g*g}var k=c/d;this.c.sort(function(b,a){a=
|
||||
Math.abs(a.G-k);b=Math.abs(b.G-k);return a<b?-1:a==b?0:1});d=Math.max(.2*k,Math.sqrt(a/d-k*k));for(b=this.c.length-1;0<=b;b--)Math.abs(this.c[b].G-k)>d&&this.c.splice(b,1)}3<this.c.length&&this.c.sort(function(b,a){return b.count>a.count?-1:b.count<a.count?1:0});return[this.c[0],this.c[1],this.c[2]]};this.Ua=function(){var d=this.c.length;if(1>=d)return 0;for(var c=null,a=0;a<d;a++){var b=this.c[a];if(b.count>=cc)if(null==c)c=b;else return this.ma=!0,Math.floor((Math.abs(c.g()-b.g())-Math.abs(c.h()-
|
||||
b.h()))/2)}return 0};this.ua=function(){for(var d=0,c=0,a=this.c.length,b=0;b<a;b++){var g=this.c[b];g.count>=cc&&(d++,c+=g.G)}if(3>d)return!1;d=c/a;var k=0;for(b=0;b<a;b++)g=this.c[b],k+=Math.abs(g.G-d);return k<=.05*c};this.Ta=function(d){this.H=d;var c=n,a=f,b=Math.floor(3*c/(4*bc));b<ac&&(b=ac);for(var g=!1,k=Array(5),h=b-1;h<c&&!g;h+=b){k[0]=0;k[1]=0;k[2]=0;k[3]=0;for(var l=k[4]=0,m=0;m<a;m++)if(d[m+h*f])1==(l&1)&&l++,k[l]++;else if(0==(l&1))if(4==l)if(this.N(k)){if(l=this.$(k,h,m))b=2,this.ma?
|
||||
g=this.ua():(l=this.Ua(),l>k[2]&&(h+=l-k[2]-b,m=a-1));else{do m++;while(m<a&&!d[m+h*f]);m--}l=0;k[0]=0;k[1]=0;k[2]=0;k[3]=0;k[4]=0}else k[0]=k[2],k[1]=k[3],k[2]=k[4],k[3]=1,k[4]=0,l=3;else k[++l]++;else k[l]++;this.N(k)&&(l=this.$(k,h,a))&&(b=k[0],this.ma&&(g=this.ua()))}d=this.mb();dc(d);return new fc(d)}};function gc(d,c,a){this.x=d;this.y=c;this.count=1;this.G=a;this.g=function(){return Math.floor(this.x)};this.h=function(){return Math.floor(this.y)};this.va=function(){this.count++};this.ha=function(b,a,c){return Math.abs(a-this.y)<=b&&Math.abs(c-this.x)<=b?(b=Math.abs(b-this.G),1>=b||1>=b/this.G):!1}}
|
||||
function Jb(d,c,a,b,g,k,h){this.H=d;this.c=[];this.ob=c;this.width=b;this.height=g;this.cb=k;this.L=[0,0,0];this.U=h;this.W=function(b,a){return a-b[2]-b[1]/2};this.N=function(b){for(var a=this.cb,c=a/2,d=0;3>d;d++)if(Math.abs(a-b[d])>=c)return!1;return!0};this.ia=function(b,a,c,d){var g=this.H,k=n,h=this.L;h[0]=0;h[1]=0;h[2]=0;for(var l=b;0<=l&&g[a+l*f]&&h[1]<=c;)h[1]++,l--;if(0>l||h[1]>c)return NaN;for(;0<=l&&!g[a+l*f]&&h[0]<=c;)h[0]++,l--;if(h[0]>c)return NaN;for(l=b+1;l<k&&g[a+l*f]&&h[1]<=c;)h[1]++,
|
||||
l++;if(l==k||h[1]>c)return NaN;for(;l<k&&!g[a+l*f]&&h[2]<=c;)h[2]++,l++;return h[2]>c||5*Math.abs(h[0]+h[1]+h[2]-d)>=2*d?NaN:this.N(h)?this.W(h,l):NaN};this.$=function(b,a,c){c=this.W(b,c);a=this.ia(a,Math.floor(c),2*b[1],b[0]+b[1]+b[2]);if(!isNaN(a)){b=(b[0]+b[1]+b[2])/3;for(var d=this.c.length,g=0;g<d;g++)if(this.c[g].ha(b,a,c))return new gc(c,a,b);c=new gc(c,a,b);this.c.push(c);null!=this.U&&this.U.Va(c)}return null};this.find=function(){for(var c=this.ob,g=this.height,k=c+b,h=a+(g>>1),q=[0,0,
|
||||
0],u=0;u<g;u++){var t=h+(0==(u&1)?u+1>>1:-(u+1>>1));q[0]=0;q[1]=0;q[2]=0;for(var x=c;x<k&&!d[x+f*t];)x++;for(var v=0;x<k;){if(d[x+t*f])if(1==v)q[v]++;else if(2==v){if(this.N(q)&&(v=this.$(q,t,x),null!=v))return v;q[0]=q[2];q[1]=1;q[2]=0;v=1}else q[++v]++;else 1==v&&v++,q[v]++;x++}if(this.N(q)&&(v=this.$(q,t,k),null!=v))return v}if(0!=this.c.length)return this.c[0];throw Error("QR Error: Couldn't find enough alignment patterns");}};function wb(d,c,a){this.F=0;this.b=7;this.S=d;this.fb=a;9>=c?this.ja=0:10<=c&&26>=c?this.ja=1:27<=c&&40>=c&&(this.ja=2);this.m=function(b){var a;if(b<this.b+1){var c=0;for(a=0;a<b;a++)c+=1<<a;c<<=this.b-b+1;a=(this.S[this.F]&c)>>this.b-b+1;this.b-=b;return a}if(b<this.b+1+8){var d=0;for(a=0;a<this.b+1;a++)d+=1<<a;a=(this.S[this.F]&d)<<b-(this.b+1);this.F++;a+=this.S[this.F]>>8-(b-(this.b+1));this.b-=b%8;0>this.b&&(this.b=8+this.b);return a}if(b<this.b+1+16){for(a=c=d=0;a<this.b+1;a++)d+=1<<a;d=(this.S[this.F]&
|
||||
d)<<b-(this.b+1);this.F++;var l=this.S[this.F]<<b-(this.b+1+8);this.F++;for(a=0;a<b-(this.b+1+8);a++)c+=1<<a;c<<=8-(b-(this.b+1+8));a=d+l+((this.S[this.F]&c)>>8-(b-(this.b+1+8)));this.b-=(b-8)%8;0>this.b&&(this.b=8+this.b);return a}return 0};this.Fa=function(){return this.F>this.S.length-this.fb-2?0:this.m(4)};this.Ya=function(b){for(var a=0;1!=b>>a;)a++;return this.m($b[this.ja][a])};this.bb=function(b){var a="",c="0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ $%*+-./:".split("");do if(1<b){var d=this.m(11);
|
||||
var l=d%45;a+=c[Math.floor(d/45)];a+=c[l];b-=2}else 1==b&&(d=this.m(6),a+=c[d],--b);while(0<b);return a};this.$a=function(b){var a=0,c="";do 3<=b?(a=this.m(10),100>a&&(c+="0"),10>a&&(c+="0"),b-=3):2==b?(a=this.m(7),10>a&&(c+="0"),b-=2):1==b&&(a=this.m(4),--b),c+=a;while(0<b);return c};this.Wa=function(b){var a=[];do{var c=this.m(8);a.push(c);b--}while(0<b);return a};this.ab=function(b){var a="";do{var c=this.m(13);c=(c/192<<8)+c%192;a+=String.fromCharCode(40956>=c+33088?c+33088:c+49472);b--}while(0<
|
||||
b);return a};this.hb=function(){var b=this.m(8);128==(b&192)&&this.m(8);192==(b&224)&&this.m(8)};this.Xa=function(){var b=[];do{var a=this.Fa();if(0==a)if(0<b.length)break;else throw Error("QR Error: Empty data block");if(1!=a&&2!=a&&4!=a&&8!=a&&7!=a)throw Error("QR Error: Invalid mode: "+a+" in (block:"+this.F+" bit:"+this.b+")");if(7==a)this.hb();else{var c=this.Ya(a);if(1>c)throw Error("QR Error: Invalid data length: "+c);switch(a){case 1:a=this.$a(c);c=Array(a.length);for(var d=0;d<a.length;d++)c[d]=
|
||||
a.charCodeAt(d);b.push(c);break;case 2:a=this.bb(c);c=Array(a.length);for(d=0;d<a.length;d++)c[d]=a.charCodeAt(d);b.push(c);break;case 4:a=this.Wa(c);b.push(a);break;case 8:a=this.ab(c),b.push(a)}}}while(1);return b}};
|
||||
}).call(this)
|
||||
|
||||
//# sourceMappingURL=qr-scanner-worker.min.js.map
|
||||
3
src/assets/images/qr-code.svg
Normal file
3
src/assets/images/qr-code.svg
Normal file
@ -0,0 +1,3 @@
|
||||
<svg width="21" height="21" viewBox="0 0 21 21" fill="none" xmlns="http://www.w3.org/2000/svg">
|
||||
<path fill-rule="evenodd" clip-rule="evenodd" d="M7.5 1.5H1.5V7.5H7.5V1.5ZM1.5 0H0V1.5V7.5V9H1.5H7.5H9V7.5V1.5V0H7.5H1.5ZM4.5 3H3V4.5V6H4.5H6V4.5V3H4.5ZM1.5 19.5V13.5H7.5V19.5H1.5ZM0 12H1.5H7.5H9V13.5V19.5V21H7.5H1.5H0V19.5V13.5V12ZM4.5 15H3V16.5V18H4.5H6V16.5V15H4.5ZM13.5 1.5H19.5V7.5H13.5V1.5ZM12 0H13.5H19.5H21V1.5V7.5V9H19.5H13.5H12V7.5V1.5V0ZM16.5 3H15V4.5V6H16.5H18V4.5V3H16.5ZM16.5 12H12V21H13.5V16.5H15V18H21V12H19.5V13.5H16.5V12ZM18 19.5H16.5V21H18V19.5ZM19.5 19.5H21V21H19.5V19.5Z" fill="black"/>
|
||||
</svg>
|
||||
|
After Width: | Height: | Size: 613 B |
@ -15,4 +15,27 @@
|
||||
color: $chalice-gray;
|
||||
}
|
||||
}
|
||||
|
||||
&__recipient-row {
|
||||
display: flex;
|
||||
justify-content: center;
|
||||
align-items: center;
|
||||
}
|
||||
|
||||
&__input-container {
|
||||
flex: 1;
|
||||
}
|
||||
|
||||
&__qr-container {
|
||||
padding: 10px;
|
||||
background: $concrete-gray;
|
||||
border: 1px solid $mercury-gray;
|
||||
border-radius: 10px;
|
||||
margin-right: 16px;
|
||||
height: 21px;
|
||||
|
||||
& > img {
|
||||
height: 21px;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -2,6 +2,7 @@ import React, { Component } from 'react';
|
||||
import { drizzleConnect } from 'drizzle-react';
|
||||
import PropTypes from 'prop-types';
|
||||
|
||||
import QrCode from '../QrCode';
|
||||
import './address-input-panel.scss';
|
||||
|
||||
class AddressInputPanel extends Component {
|
||||
@ -29,20 +30,25 @@ class AddressInputPanel extends Component {
|
||||
|
||||
return (
|
||||
<div className="currency-input-panel">
|
||||
<div className="currency-input-panel__container">
|
||||
<div className="currency-input-panel__label-row">
|
||||
<div className="currency-input-panel__label-container">
|
||||
<span className="currency-input-panel__label">Recipient Address</span>
|
||||
<div className="currency-input-panel__container address-input-panel__recipient-row">
|
||||
<div className="address-input-panel__input-container">
|
||||
<div className="currency-input-panel__label-row">
|
||||
<div className="currency-input-panel__label-container">
|
||||
<span className="currency-input-panel__label">Recipient Address</span>
|
||||
</div>
|
||||
</div>
|
||||
<div className="currency-input-panel__input-row">
|
||||
<input
|
||||
type="text"
|
||||
className="address-input-panel__input"
|
||||
placeholder="0x1234..."
|
||||
onChange={e => onChange(e.target.value)}
|
||||
value={value}
|
||||
/>
|
||||
</div>
|
||||
</div>
|
||||
<div className="currency-input-panel__input-row">
|
||||
<input
|
||||
type="text"
|
||||
className="address-input-panel__input"
|
||||
placeholder="0x1234..."
|
||||
onChange={e => onChange(e.target.value)}
|
||||
value={value}
|
||||
/>
|
||||
<div className="address-input-panel__qr-container">
|
||||
<QrCode onValueReceived={value => onChange(value)} />
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
118
src/components/QrCode/index.js
Normal file
118
src/components/QrCode/index.js
Normal file
@ -0,0 +1,118 @@
|
||||
import React, { Component } from 'react';
|
||||
import PropTypes from 'prop-types';
|
||||
import { CSSTransitionGroup } from "react-transition-group";
|
||||
|
||||
import Modal from '../Modal';
|
||||
import QrCodeSVG from '../../assets/images/qr-code.svg';
|
||||
import QrScanner from '../../libraries/qr-scanner';
|
||||
import './qr-code.scss';
|
||||
|
||||
class QrCode extends Component {
|
||||
static propTypes = {
|
||||
onValueReceived: PropTypes.func,
|
||||
};
|
||||
|
||||
static defaultProps = {
|
||||
onValueReceived() {},
|
||||
};
|
||||
|
||||
state = {
|
||||
videoOpen: false,
|
||||
stream: null,
|
||||
};
|
||||
|
||||
constructor(props) {
|
||||
super(props);
|
||||
}
|
||||
|
||||
componentDidUpdate() {
|
||||
const { videoOpen, stream } = this.state;
|
||||
|
||||
if (videoOpen && !stream && this.videoRef) {
|
||||
this.startStreamingVideo(this.videoRef)
|
||||
} else if (!videoOpen && stream) {
|
||||
this.setState({stream: null});
|
||||
}
|
||||
}
|
||||
|
||||
startStreamingVideo(videoRef) {
|
||||
if (navigator && navigator.mediaDevices && navigator.mediaDevices.getUserMedia) {
|
||||
navigator.mediaDevices.getUserMedia({video: { facingMode: 'user'}, audio: false})
|
||||
.then((stream) => {
|
||||
videoRef.srcObject = stream;
|
||||
new QrScanner(videoRef, (val) => {
|
||||
this.closeVideo();
|
||||
this.props.onValueReceived(val);
|
||||
})
|
||||
this.setState({
|
||||
stream: stream.getTracks()[0]
|
||||
});
|
||||
})
|
||||
.catch((error) => {
|
||||
this.closeVideo();
|
||||
console.error(error);
|
||||
});
|
||||
}
|
||||
}
|
||||
|
||||
openVideo = () => {
|
||||
this.setState({videoOpen: true});
|
||||
}
|
||||
|
||||
closeVideo = () => {
|
||||
if (this.state.stream) {
|
||||
this.state.stream.stop();
|
||||
}
|
||||
this.setState({videoOpen: false, stream: null});
|
||||
this.videoRef = null;
|
||||
};
|
||||
|
||||
setVideoRef = (element) => {
|
||||
this.videoRef = element;
|
||||
}
|
||||
|
||||
renderQrReader() {
|
||||
if (this.state.videoOpen) {
|
||||
return (
|
||||
<Modal key="modal" onClose={this.closeVideo}>
|
||||
<CSSTransitionGroup
|
||||
transitionName="qr-modal"
|
||||
transitionAppear={true}
|
||||
transitionLeave={true}
|
||||
transitionAppearTimeout={200}
|
||||
transitionLeaveTimeout={200}
|
||||
transitionEnterTimeout={200}
|
||||
>
|
||||
<div className="qr-code__modal">
|
||||
<video
|
||||
playsInline
|
||||
muted
|
||||
autoPlay
|
||||
ref={this.setVideoRef}
|
||||
className="qr-code__video"
|
||||
>
|
||||
</video>
|
||||
</div>
|
||||
</CSSTransitionGroup>
|
||||
</Modal>
|
||||
);
|
||||
}
|
||||
|
||||
return null;
|
||||
}
|
||||
|
||||
render() {
|
||||
const {
|
||||
onValueReceived,
|
||||
} = this.props;
|
||||
|
||||
return [
|
||||
<img key="icon" src={QrCodeSVG} onClick={() => {
|
||||
this.state.videoOpen ? this.closeVideo() : this.openVideo();
|
||||
}} />,
|
||||
this.renderQrReader()
|
||||
]
|
||||
}
|
||||
}
|
||||
|
||||
export default QrCode;
|
||||
16
src/components/QrCode/qr-code.scss
Normal file
16
src/components/QrCode/qr-code.scss
Normal file
@ -0,0 +1,16 @@
|
||||
|
||||
.qr-code {
|
||||
&__video {
|
||||
height: 100%;
|
||||
width: 100%;
|
||||
}
|
||||
|
||||
&__modal {
|
||||
z-index: 2000;
|
||||
position: absolute;
|
||||
top: 100px;
|
||||
bottom: 100px;
|
||||
right: 100px;
|
||||
left: 100px;
|
||||
}
|
||||
}
|
||||
16
src/libraries/qr-scanner.js
Normal file
16
src/libraries/qr-scanner.js
Normal file
@ -0,0 +1,16 @@
|
||||
/*
|
||||
@asset(/libraries/qr-scanner/qr-scanner-worker.min.js) */
|
||||
'use strict';export default class QrScanner{constructor(video,onDecode,canvasSize=QrScanner.DEFAULT_CANVAS_SIZE){this.$video=video;this.$canvas=document.createElement("canvas");this._onDecode=onDecode;this._active=false;this.$canvas.width=canvasSize;this.$canvas.height=canvasSize;this._sourceRect={x:0,y:0,width:canvasSize,height:canvasSize};this.$video.addEventListener("canplay",()=>this._updateSourceRect());this.$video.addEventListener("play",()=>{this._updateSourceRect();this._scanFrame()},false);
|
||||
this._qrWorker=new Worker(QrScanner.WORKER_PATH)}_updateSourceRect(){const smallestDimension=Math.min(this.$video.videoWidth,this.$video.videoHeight);const sourceRectSize=Math.round(2/3*smallestDimension);this._sourceRect.width=this._sourceRect.height=sourceRectSize;this._sourceRect.x=(this.$video.videoWidth-sourceRectSize)/2;this._sourceRect.y=(this.$video.videoHeight-sourceRectSize)/2}_scanFrame(){if(this.$video.paused||this.$video.ended)return false;requestAnimationFrame(()=>{QrScanner.scanImage(this.$video,
|
||||
this._sourceRect,this._qrWorker,this.$canvas,true).then(this._onDecode,(error)=>{if(error!=="QR code not found.")console.error(error)}).then(()=>this._scanFrame())})}_getCameraStream(facingMode,exact=false){const constraintsToTry=[{width:{min:1024}},{width:{min:768}},{}];if(facingMode){if(exact)facingMode={exact:facingMode};constraintsToTry.forEach((constraint)=>constraint.facingMode=facingMode)}return this._getMatchingCameraStream(constraintsToTry)}_getMatchingCameraStream(constraintsToTry){if(constraintsToTry.length===
|
||||
0)return Promise.reject("Camera not found.");return navigator.mediaDevices.getUserMedia({video:constraintsToTry.shift()}).catch(()=>this._getMatchingCameraStream(constraintsToTry))}start(){if(this._active)return Promise.resolve();this._active=true;clearTimeout(this._offTimeout);let facingMode="environment";return this._getCameraStream("environment",true).catch(()=>{facingMode="user";return this._getCameraStream()}).then((stream)=>{this.$video.srcObject=stream;this._setVideoMirror(facingMode)}).catch((e)=>
|
||||
{this._active=false;throw e;})}stop(){if(!this._active)return;this._active=false;this.$video.pause();this._offTimeout=setTimeout(()=>{this.$video.srcObject.getTracks()[0].stop();this.$video.srcObject=null},3E3)}_setVideoMirror(facingMode){const scaleFactor=facingMode==="user"?-1:1;this.$video.style.transform="scaleX("+scaleFactor+")"}setGrayscaleWeights(red,green,blue){this._qrWorker.postMessage({type:"grayscaleWeights",data:{red,green,blue}})}static scanImage(imageOrFileOrUrl,sourceRect=null,worker=
|
||||
null,canvas=null,fixedCanvasSize=false,alsoTryWithoutSourceRect=false){const promise=new Promise((resolve,reject)=>{worker=worker||new Worker(QrScanner.WORKER_PATH);let timeout,onMessage,onError;onMessage=(event)=>{if(event.data.type!=="qrResult")return;worker.removeEventListener("message",onMessage);worker.removeEventListener("error",onError);clearTimeout(timeout);if(event.data.data!==null)resolve(event.data.data);else reject("QR code not found.")};onError=()=>{worker.removeEventListener("message",
|
||||
onMessage);worker.removeEventListener("error",onError);clearTimeout(timeout);reject("Worker error.")};worker.addEventListener("message",onMessage);worker.addEventListener("error",onError);timeout=setTimeout(onError,3E3);QrScanner._loadImage(imageOrFileOrUrl).then((image)=>{const imageData=QrScanner._getImageData(image,sourceRect,canvas,fixedCanvasSize);worker.postMessage({type:"decode",data:imageData},[imageData.data.buffer])}).catch(reject)});if(sourceRect&&alsoTryWithoutSourceRect)return promise.catch(()=>
|
||||
QrScanner.scanImage(imageOrFileOrUrl,null,worker,canvas,fixedCanvasSize));else return promise}static _getImageData(image,sourceRect=null,canvas=null,fixedCanvasSize=false){canvas=canvas||document.createElement("canvas");const sourceRectX=sourceRect&&sourceRect.x?sourceRect.x:0;const sourceRectY=sourceRect&&sourceRect.y?sourceRect.y:0;const sourceRectWidth=sourceRect&&sourceRect.width?sourceRect.width:image.width||image.videoWidth;const sourceRectHeight=sourceRect&&sourceRect.height?sourceRect.height:
|
||||
image.height||image.videoHeight;if(!fixedCanvasSize&&(canvas.width!==sourceRectWidth||canvas.height!==sourceRectHeight)){canvas.width=sourceRectWidth;canvas.height=sourceRectHeight}const context=canvas.getContext("2d",{alpha:false});context.imageSmoothingEnabled=false;context.drawImage(image,sourceRectX,sourceRectY,sourceRectWidth,sourceRectHeight,0,0,canvas.width,canvas.height);return context.getImageData(0,0,canvas.width,canvas.height)}static _loadImage(imageOrFileOrUrl){if(imageOrFileOrUrl instanceof
|
||||
HTMLCanvasElement||imageOrFileOrUrl instanceof HTMLVideoElement||window.ImageBitmap&&imageOrFileOrUrl instanceof window.ImageBitmap||window.OffscreenCanvas&&imageOrFileOrUrl instanceof window.OffscreenCanvas)return Promise.resolve(imageOrFileOrUrl);else if(imageOrFileOrUrl instanceof Image)return QrScanner._awaitImageLoad(imageOrFileOrUrl).then(()=>imageOrFileOrUrl);else if(imageOrFileOrUrl instanceof File||imageOrFileOrUrl instanceof URL||typeof imageOrFileOrUrl==="string"){const image=new Image;
|
||||
if(imageOrFileOrUrl instanceof File)image.src=URL.createObjectURL(imageOrFileOrUrl);else image.src=imageOrFileOrUrl;return QrScanner._awaitImageLoad(image).then(()=>{if(imageOrFileOrUrl instanceof File)URL.revokeObjectURL(image.src);return image})}else return Promise.reject("Unsupported image type.")}static _awaitImageLoad(image){return new Promise((resolve,reject)=>{if(image.complete&&image.naturalWidth!==0)resolve();else{let onLoad,onError;onLoad=()=>{image.removeEventListener("load",onLoad);image.removeEventListener("error",
|
||||
onError);resolve()};onError=()=>{image.removeEventListener("load",onLoad);image.removeEventListener("error",onError);reject("Image load error")};image.addEventListener("load",onLoad);image.addEventListener("error",onError)}})}}QrScanner.DEFAULT_CANVAS_SIZE=400;QrScanner.WORKER_PATH="/libraries/qr-scanner/qr-scanner-worker.min.js";
|
||||
|
||||
//# sourceMappingURL=qr-scanner.min.js.map
|
||||
Loading…
Reference in New Issue
Block a user