qrious - npm Package Compare versions

Comparing version 2.2.0 to 2.3.0

CHANGES.md

@@ -0,1 +1,9 @@
+## Version 2.3.0, 2017.05.31
+
+* Enable setting of multiple properties at once resulting in a single re-render [#69](https://github.com/neocotic/qrious/issues/69)
+* Deferring or avoiding ImageRenderer [#71](https://github.com/neocotic/qrious/issues/71)
+* Switch to container-based Travis builds for faster boot times [#73](https://github.com/neocotic/qrious/issues/73)
+* Change code style to be more contributor-friendly [#75](https://github.com/neocotic/qrious/issues/75)
+* Improve download links in README [#76](https://github.com/neocotic/qrious/issues/76)
+
 ## Version 2.2.0, 2016.10.30
@@ -2,0 +10,0 @@

dist/umd/qrious.min.js

@@ -1,7 +0,7 @@
-/*! QRious v2.2.0 | (C) 2016 Alasdair Mercer | GPL v3 License
+/*! QRious v2.3.0 | (C) 2017 Alasdair Mercer | GPL v3 License
 Based on jsqrencode | (C) 2010 [e-mail] | GPL v3 License
 */
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t(){lt(this,t)}return gt(t,null,[{key:"BLOCK",get:function(){return[0,11,15,19,23,27,31,16,18,20,22,24,26,28,20,22,24,24,26,28,28,22,24,24,26,26,28,28,24,24,26,26,26,28,28,24,26,26,26,28,28]}}]),t}(),ji=function(){function t(){lt(this,t)}return gt(t,null,[{key:"BLOCKS",get:function(){return[1,0,19,7,1,0,16,10,1,0,13,13,1,0,9,17,1,0,34,10,1,0,28,16,1,0,22,22,1,0,16,28,1,0,55,15,1,0,44,26,2,0,17,18,2,0,13,22,1,0,80,20,2,0,32,18,2,0,24,26,4,0,9,16,1,0,108,26,2,0,43,24,2,2,15,18,2,2,11,22,2,0,68,18,4,0,27,16,4,0,19,24,4,0,15,28,2,0,78,20,4,0,31,18,2,4,14,18,4,1,13,26,2,0,97,24,2,2,38,22,4,2,18,22,4,2,14,26,2,0,116,30,3,2,36,22,4,4,16,20,4,4,12,24,2,2,68,18,4,1,43,26,6,2,19,24,6,2,15,28,4,0,81,20,1,4,50,30,4,4,22,28,3,8,12,24,2,2,92,24,6,2,36,22,4,6,20,26,7,4,14,28,4,0,107,26,8,1,37,22,8,4,20,24,12,4,11,22,3,1,115,30,4,5,40,24,11,5,16,20,11,5,12,24,5,1,87,22,5,5,41,24,5,7,24,30,11,7,12,24,5,1,98,24,7,3,45,28,15,2,19,24,3,13,15,30,1,5,107,28,10,1,46,28,1,15,22,28,2,17,14,28,5,1,120,30,9,4,43,26,17,1,22,28,2,19,14,28,3,4,113,28,3,11,44,26,17,4,21,26,9,16,13,26,3,5,107,28,3,13,41,26,15,5,24,30,15,10,15,28,4,4,116,28,17,0,42,26,17,6,22,28,19,6,16,30,2,7,111,28,17,0,46,28,7,16,24,30,34,0,13,24,4,5,121,30,4,14,47,28,11,14,24,30,16,14,15,30,6,4,117,30,6,14,45,28,11,16,24,30,30,2,16,30,8,4,106,26,8,13,47,28,7,22,24,30,22,13,15,30,10,2,114,28,19,4,46,28,28,6,22,28,33,4,16,30,8,4,122,30,22,3,45,28,8,26,23,30,12,28,15,30,3,10,117,30,3,23,45,28,4,31,24,30,11,31,15,30,7,7,116,30,21,7,45,28,1,37,23,30,19,26,15,30,5,10,115,30,19,10,47,28,15,25,24,30,23,25,15,30,13,3,115,30,2,29,46,28,42,1,24,30,23,28,15,30,17,0,115,30,10,23,46,28,10,35,24,30,19,35,15,30,17,1,115,30,14,21,46,28,29,19,24,30,11,46,15,30,13,6,115,30,14,23,46,28,44,7,24,30,59,1,16,30,12,7,121,30,12,26,47,28,39,14,24,30,22,41,15,30,6,14,121,30,6,34,47,28,46,10,24,30,2,64,15,30,17,4,122,30,29,14,46,28,49,10,24,30,24,46,15,30,4,18,122,30,13,32,46,28,48,14,24,30,42,32,15,30,20,4,117,30,40,7,47,28,43,22,24,30,10,67,15,30,19,6,118,30,18,31,47,28,34,34,24,30,20,61,15,30]}},{key:"FINAL_FORMAT",get:function(){return[30660,29427,32170,30877,26159,25368,27713,26998,21522,20773,24188,23371,17913,16590,20375,19104,13663,12392,16177,14854,9396,8579,11994,11245,5769,5054,7399,6608,1890,597,3340,2107]}},{key:"LEVELS",get:function(){return{L:1,M:2,Q:3,H:4}}}]),t}(),Li=function(){function t(){lt(this,t)}return gt(t,null,[{key:"EXPONENT",get:function(){return[1,2,4,8,16,32,64,128,29,58,116,232,205,135,19,38,76,152,45,90,180,117,234,201,143,3,6,12,24,48,96,192,157,39,78,156,37,74,148,53,106,212,181,119,238,193,159,35,70,140,5,10,20,40,80,160,93,186,105,210,185,111,222,161,95,190,97,194,153,47,94,188,101,202,137,15,30,60,120,240,253,231,211,187,107,214,177,127,254,225,223,163,91,182,113,226,217,175,67,134,17,34,68,136,13,26,52,104,208,189,103,206,129,31,62,124,248,237,199,147,59,118,236,197,151,51,102,204,133,23,46,92,184,109,218,169,79,158,33,66,132,21,42,84,168,77,154,41,82,164,85,170,73,146,57,114,228,213,183,115,230,209,191,99,198,145,63,126,252,229,215,179,123,246,241,255,227,219,171,75,150,49,98,196,149,55,110,220,165,87,174,65,130,25,50,100,200,141,7,14,28,56,112,224,221,167,83,166,81,162,89,178,121,242,249,239,195,155,43,86,172,69,138,9,18,36,72,144,61,122,244,245,247,243,251,235,203,139,11,22,44,88,176,125,250,233,207,131,27,54,108,216,173,71,142,0]}},{key:"LOG",get:function(){return[255,0,1,25,2,50,26,198,3,223,51,238,27,104,199,75,4,100,224,14,52,141,239,129,28,193,105,248,200,8,76,113,5,138,101,47,225,36,15,33,53,147,142,218,240,18,130,69,29,181,194,125,106,39,249,185,201,154,9,120,77,228,114,166,6,191,139,98,102,221,48,253,226,152,37,179,16,145,34,136,54,208,148,206,143,150,219,189,241,210,19,92,131,56,70,64,30,66,182,163,195,72,126,110,107,58,40,84,250,133,186,61,202,94,155,159,10,21,121,43,78,212,229,172,115,243,167,87,7,112,192,247,140,128,99,13,103,74,222,237,49,197,254,24,227,165,153,119,38,184,180,124,17,68,146,217,35,32,137,46,55,63,209,91,149,188,207,205,144,135,151,178,220,252,190,97,242,86,211,171,20,42,93,158,132,60,57,83,71,109,65,162,31,45,67,216,183,123,164,118,196,23,73,236,127,12,111,246,108,161,59,82,41,157,85,170,251,96,134,177,187,204,62,90,203,89,95,176,156,169,160,81,11,245,22,235,122,117,44,215,79,174,213,233,230,231,173,232,116,214,244,234,168,80,88,175]}}]),t}(),Ni=function(){function t(){lt(this,t)}return gt(t,null,[{key:"BLOCK",get:function(){return[3220,1468,2713,1235,3062,1890,2119,1549,2344,2936,1117,2583,1330,2470,1667,2249,2028,3780,481,4011,142,3098,831,3445,592,2517,1776,2234,1951,2827,1070,2660,1345,3177]}}]),t}(),Pi=function(){function t(e){lt(this,t),this._badness=[],this._level=ji.LEVELS[e.level],this._polynomial=[],this._value=e.value,this._valueLength=this._value.length,this._version=0,this._stringBuffer=[];for(var n=void 0,r=void 0,i=void 0,s=void 0;this._version<40;){this._version++;var o=4*(this._level-1)+16*(this._version-1);if(i=ji.BLOCKS[o++],s=ji.BLOCKS[o++],n=ji.BLOCKS[o++],r=ji.BLOCKS[o],o=n*(i+s)+s-3+(this._version<=9),this._valueLength<=o)break}this._dataBlock=n,this._eccBlock=r,this._neccBlock1=i,this._neccBlock2=s,this.width=17+4*this._version,this.buffer=t._createArray(this.width*this.width),this._ecc=t._createArray(this._dataBlock+(this._dataBlock+this._eccBlock)*(this._neccBlock1+this._neccBlock2)+this._neccBlock2),this._mask=t._createArray((this.width*(this.width+1)+1)/2),this._insertFinders(),this._insertAlignments(),this.buffer[8+this.width*(this.width-8)]=1,this._insertTimingGap(),this._reverseMask(),this._insertTimingRowAndColumn(),this._insertVersion(),this._syncMask(),this._convertBitStream(this._value.length),this._calculatePolynomial(),this._appendEccToData(),this._interleaveBlocks(),this._pack(),this._finish()}return gt(t,null,[{key:"_createArray",value:function(t){for(var e=[],n=0;n<t;n++)e[n]=0;return e}},{key:"_getMaskBit",value:function(t,e){var n=void 0;return t>e&&(n=t,t=e,e=n),n=e,n+=e*e,n>>=1,n+=t}},{key:"_modN",value:function(t){for(;t>=255;)t-=255,t=(t>>8)+(255&t);return t}},{key:"N1",get:function(){return 3}},{key:"N2",get:function(){return 3}},{key:"N3",get:function(){return 40}},{key:"N4",get:function(){return 10}}]),gt(t,[{key:"_addAlignment",value:function(t,e){this.buffer[t+this.width*e]=1;for(var n=-2;n<2;n++)this.buffer[t+n+this.width*(e-2)]=1,this.buffer[t-2+this.width*(e+n+1)]=1,this.buffer[t+2+this.width*(e+n)]=1,this.buffer[t+n+1+this.width*(e+2)]=1;for(var r=0;r<2;r++)this._setMask(t-1,e+r),this._setMask(t+1,e-r),this._setMask(t-r,e-1),this._setMask(t+r,e+1)}},{key:"_appendData",value:function(e,n,r,i){for(var s=0;s<i;s++)this._stringBuffer[r+s]=0;for(var o=0;o<n;o++){var u=Li.LOG[this._stringBuffer[e+o]^this._stringBuffer[r]];if(255!==u)for(var a=1;a<i;a++)this._stringBuffer[r+a-1]=this._stringBuffer[r+a]^Li.EXPONENT[t._modN(u+this._polynomial[i-a])];else for(var f=r;f<r+i;f++)this._stringBuffer[f]=this._stringBuffer[f+1];this._stringBuffer[r+i-1]=255===u?0:Li.EXPONENT[t._modN(u+this._polynomial[0])]}}},{key:"_appendEccToData",value:function(){for(var t=0,e=this._calculateMaxLength(),n=0;n<this._neccBlock1;n++)this._appendData(t,this._dataBlock,e,this._eccBlock),t+=this._dataBlock,e+=this._eccBlock;for(var r=0;r<this._neccBlock2;r++)this._appendData(t,this._dataBlock+1,e,this._eccBlock),t+=this._dataBlock+1,e+=this._eccBlock}},{key:"_applyMask",value:function(t){var e=this.width;switch(t){case 0:for(var n=0;n<e;n++)for(var r=0;r<e;r++)r+n&1||this._isMasked(r,n)||(this.buffer[r+n*e]^=1);break;case 1:for(var i=0;i<e;i++)for(var s=0;s<e;s++)1&i||this._isMasked(s,i)||(this.buffer[s+i*e]^=1);break;case 2:for(var o=0;o<e;o++)for(var u=0,a=0;a<e;a++,u++)3===u&&(u=0),u||this._isMasked(a,o)||(this.buffer[a+o*e]^=1);break;case 3:for(var f=0,c=0;c<e;c++,f++){3===f&&(f=0);for(var h=f,l=0;l<e;l++,h++)3===h&&(h=0),h||this._isMasked(l,c)||(this.buffer[l+c*e]^=1)}break;case 4:for(var _=0;_<e;_++)for(var d=0,v=_>>1&1,p=0;p<e;p++,d++)3===d&&(d=0,v=!v),v||this._isMasked(p,_)||(this.buffer[p+_*e]^=1);break;case 5:for(var y=0,g=0;g<e;g++,y++){3===y&&(y=0);for(var k=0,b=0;b<e;b++,k++)3===k&&(k=0),(b&g&1)+!(!k|!y)||this._isMasked(b,g)||(this.buffer[b+g*e]^=1)}break;case 6:for(var m=0,w=0;w<e;w++,m++){3===m&&(m=0);for(var B=0,O=0;O<e;O++,B++)3===B&&(B=0),(O&w&1)+(B&&B===m)&1||this._isMasked(O,w)||(this.buffer[O+w*e]^=1)}break;case 7:for(var M=0,S=0;S<e;S++,M++){3===M&&(M=0);for(var E=0,A=0;A<e;A++,E++)3===E&&(E=0),(E&&E===M)+(A+S&1)&1||this._isMasked(A,S)||(this.buffer[A+S*e]^=1)}}}},{key:"_calculateMaxLength",value:function(){return this._dataBlock*(this._neccBlock1+this._neccBlock2)+this._neccBlock2}},{key:"_calculatePolynomial",value:function(){this._polynomial[0]=1;for(var e=0;e<this._eccBlock;e++){this._polynomial[e+1]=1;for(var n=e;n>0;n--)this._polynomial[n]=this._polynomial[n]?this._polynomial[n-1]^Li.EXPONENT[t._modN(Li.LOG[this._polynomial[n]]+e)]:this._polynomial[n-1];this._polynomial[0]=Li.EXPONENT[t._modN(Li.LOG[this._polynomial[0]]+e)]}for(var r=0;r<=this._eccBlock;r++)this._polynomial[r]=Li.LOG[this._polynomial[r]]}},{key:"_checkBadness",value:function(){for(var e=0,n=this.width,r=0;r<n-1;r++)for(var i=0;i<n-1;i++)(this.buffer[i+n*r]&&this.buffer[i+1+n*r]&&this.buffer[i+n*(r+1)]&&this.buffer[i+1+n*(r+1)]||!(this.buffer[i+n*r]||this.buffer[i+1+n*r]||this.buffer[i+n*(r+1)]||this.buffer[i+1+n*(r+1)]))&&(e+=t.N2);for(var s=0,o=0;o<n;o++){var u=0;this._badness[0]=0;for(var a=0,f=0;f<n;f++){var c=this.buffer[f+n*o];a===c?this._badness[u]++:this._badness[++u]=1,a=c,s+=a?1:-1}e+=this._getBadness(u)}s<0&&(s=-s);var h=0,l=s;for(l+=l<<2,l<<=1;l>n*n;)l-=n*n,h++;e+=h*t.N4;for(var _=0;_<n;_++){var d=0;this._badness[0]=0;for(var v=0,p=0;p<n;p++){var y=this.buffer[_+n*p];v===y?this._badness[d]++:this._badness[++d]=1,v=y}e+=this._getBadness(d)}return e}},{key:"_convertBitStream",value:function(t){for(var e=0;e<t;e++)this._ecc[e]=this._value.charCodeAt(e);this._stringBuffer=this._ecc.slice(0);var n=this._calculateMaxLength();t>=n-2&&(t=n-2,this._version>9&&t--);var r=t;if(this._version>9){for(this._stringBuffer[r+2]=0,this._stringBuffer[r+3]=0;r--;){var i=this._stringBuffer[r];this._stringBuffer[r+3]|=255&i<<4,this._stringBuffer[r+2]=i>>4}this._stringBuffer[2]|=255&t<<4,this._stringBuffer[1]=t>>4,this._stringBuffer[0]=64|t>>12}else{for(this._stringBuffer[r+1]=0,this._stringBuffer[r+2]=0;r--;){var s=this._stringBuffer[r];this._stringBuffer[r+2]|=255&s<<4,this._stringBuffer[r+1]=s>>4}this._stringBuffer[1]|=255&t<<4,this._stringBuffer[0]=64|t>>4}for(r=t+3-(this._version<10);r<n;)this._stringBuffer[r++]=236,this._stringBuffer[r++]=17}},{key:"_getBadness",value:function(e){for(var n=0,r=0;r<=e;r++)this._badness[r]>=5&&(n+=t.N1+this._badness[r]-5);for(var i=3;i<e-1;i+=2)this._badness[i-2]===this._badness[i+2]&&this._badness[i+2]===this._badness[i-1]&&this._badness[i-1]===this._badness[i+1]&&3*this._badness[i-1]===this._badness[i]&&(0===this._badness[i-3]||i+3>e||3*this._badness[i-3]>=4*this._badness[i]||3*this._badness[i+3]>=4*this._badness[i])&&(n+=t.N3);return n}},{key:"_finish",value:function(){this._stringBuffer=this.buffer.slice(0);var t=0,e=void 0,n=3e4;for(e=0;e<8;e++){this._applyMask(e);var 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o=0;o<this._neccBlock1+this._neccBlock2;o++)this._ecc[n++]=this._stringBuffer[t+e+o*this._eccBlock];this._stringBuffer=this._ecc}},{key:"_insertAlignments",value:function(){var t=this.width;if(this._version>1)for(var e=Ai.BLOCK[this._version],n=t-7;;){for(var r=t-7;r>e-3&&(this._addAlignment(r,n),!(r<e));)r-=e;if(n<=e+9)break;n-=e,this._addAlignment(6,n),this._addAlignment(n,6)}}},{key:"_insertFinders",value:function(){for(var t=this.width,e=0;e<3;e++){var n=0,r=0;1===e&&(n=t-7),2===e&&(r=t-7),this.buffer[r+3+t*(n+3)]=1;for(var i=0;i<6;i++)this.buffer[r+i+t*n]=1,this.buffer[r+t*(n+i+1)]=1,this.buffer[r+6+t*(n+i)]=1,this.buffer[r+i+1+t*(n+6)]=1;for(var s=1;s<5;s++)this._setMask(r+s,n+1),
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1===this._mask[r]}},{key:"_pack",value:function(){for(var t=this.width-1,e=this.width-1,n=1,r=1,i=(this._dataBlock+this._eccBlock)*(this._neccBlock1+this._neccBlock2)+this._neccBlock2,s=0;s<i;s++)for(var o=this._stringBuffer[s],u=0;u<8;u++,o<<=1){128&o&&(this.buffer[t+this.width*e]=1);do r?t--:(t++,n?0!==e?e--:(t-=2,n=!n,6===t&&(t--,e=9)):e!==this.width-1?e++:(t-=2,n=!n,6===t&&(t--,e-=8))),r=!r;while(this._isMasked(t,e))}}},{key:"_reverseMask",value:function(){for(var t=this.width,e=0;e<9;e++)this._setMask(e,8);for(var n=0;n<8;n++)this._setMask(n+t-8,8),this._setMask(8,n);for(var r=0;r<7;r++)this._setMask(8,r+t-7)}},{key:"_setMask",value:function(e,n){var r=t._getMaskBit(e,n);this._mask[r]=1}},{key:"_syncMask",value:function(){for(var t=this.width,e=0;e<t;e++)for(var n=0;n<=e;n++)this.buffer[n+t*e]&&this._setMask(n,e)}}]),t}(),Ti=function(t){function e(){return lt(this,e),Yr(this,(e.__proto__||ct(e)).apply(this,arguments))}return ci(e,t),gt(e,[{key:"draw",value:function(){var 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this._backgroundAlpha},set:function(e){var n=hi.setter(this,"_backgroundAlpha",e,t.DEFAULTS.backgroundAlpha);n&&this.update()}},{key:"foreground",get:function(){return this._foreground},set:function(e){var n=hi.setter(this,"_foreground",e,t.DEFAULTS.foreground);n&&this.update()}},{key:"foregroundAlpha",get:function(){return this._foregroundAlpha},set:function(e){var n=hi.setter(this,"_foregroundAlpha",e,t.DEFAULTS.foregroundAlpha);n&&this.update()}},{key:"level",get:function(){return this._level},set:function(e){var n=hi.setter(this,"_level",e,t.DEFAULTS.level,hi.toUpperCase);n&&this.update()}},{key:"mime",get:function(){return this._mime},set:function(e){var n=hi.setter(this,"_mime",e,t.DEFAULTS.mime);n&&this.update()}},{key:"padding",get:function(){return this._padding},set:function(e){var n=hi.setter(this,"_padding",e,t.DEFAULTS.padding,hi.abs);n&&this.update()}},{key:"size",get:function(){return this._size},set:function(e){var 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o=4*(this._level-1)+16*(this._version-1);if(i=rn.BLOCKS[o++],s=rn.BLOCKS[o++],n=rn.BLOCKS[o++],r=rn.BLOCKS[o],o=n*(i+s)+s-3+(this._version<=9),this._valueLength<=o)break}this._dataBlock=n,this._eccBlock=r,this._neccBlock1=i,this._neccBlock2=s,this.width=17+4*this._version,this.buffer=t._createArray(this.width*this.width),this._ecc=t._createArray(this._dataBlock+(this._dataBlock+this._eccBlock)*(this._neccBlock1+this._neccBlock2)+this._neccBlock2),this._mask=t._createArray((this.width*(this.width+1)+1)/2),this._insertFinders(),this._insertAlignments(),this.buffer[8+this.width*(this.width-8)]=1,this._insertTimingGap(),this._reverseMask(),this._insertTimingRowAndColumn(),this._insertVersion(),this._syncMask(),this._convertBitStream(this._value.length),this._calculatePolynomial(),this._appendEccToData(),this._interleaveBlocks(),this._pack(),this._finish()}return G(t,null,[{key:"_createArray",value:function(t){for(var e=[],n=0;n<t;n++)e[n]=0;return e}},{key:"_getMaskBit",value:function(t,e){var n=void 0;return t>e&&(n=t,t=e,e=n),n=e,n+=e*e,n>>=1,n+=t}},{key:"_modN",value:function(t){for(;t>=255;)t-=255,t=(t>>8)+(255&t);return t}},{key:"N1",get:function(){return 3}},{key:"N2",get:function(){return 3}},{key:"N3",get:function(){return 40}},{key:"N4",get:function(){return 10}}]),G(t,[{key:"_addAlignment",value:function(t,e){this.buffer[t+this.width*e]=1;for(var n=-2;n<2;n++)this.buffer[t+n+this.width*(e-2)]=1,this.buffer[t-2+this.width*(e+n+1)]=1,this.buffer[t+2+this.width*(e+n)]=1,this.buffer[t+n+1+this.width*(e+2)]=1;for(var r=0;r<2;r++)this._setMask(t-1,e+r),this._setMask(t+1,e-r),this._setMask(t-r,e-1),this._setMask(t+r,e+1)}},{key:"_appendData",value:function(e,n,r,i){for(var s=0;s<i;s++)this._stringBuffer[r+s]=0;for(var o=0;o<n;o++){var u=sn.LOG[this._stringBuffer[e+o]^this._stringBuffer[r]];if(255!==u)for(var a=1;a<i;a++)this._stringBuffer[r+a-1]=this._stringBuffer[r+a]^sn.EXPONENT[t._modN(u+this._polynomial[i-a])];else for(var f=r;f<r+i;f++)this._stringBuffer[f]=this._stringBuffer[f+1];this._stringBuffer[r+i-1]=255===u?0:sn.EXPONENT[t._modN(u+this._polynomial[0])]}}},{key:"_appendEccToData",value:function(){for(var t=0,e=this._calculateMaxLength(),n=0;n<this._neccBlock1;n++)this._appendData(t,this._dataBlock,e,this._eccBlock),t+=this._dataBlock,e+=this._eccBlock;for(var r=0;r<this._neccBlock2;r++)this._appendData(t,this._dataBlock+1,e,this._eccBlock),t+=this._dataBlock+1,e+=this._eccBlock}},{key:"_applyMask",value:function(t){var e=this.width;switch(t){case 0:for(var n=0;n<e;n++)for(var r=0;r<e;r++)r+n&1||this._isMasked(r,n)||(this.buffer[r+n*e]^=1);break;case 1:for(var i=0;i<e;i++)for(var s=0;s<e;s++)1&i||this._isMasked(s,i)||(this.buffer[s+i*e]^=1);break;case 2:for(var o=0;o<e;o++)for(var u=0,a=0;a<e;a++,u++)3===u&&(u=0),u||this._isMasked(a,o)||(this.buffer[a+o*e]^=1);break;case 3:for(var f=0,c=0;c<e;c++,f++){3===f&&(f=0);for(var h=f,l=0;l<e;l++,h++)3===h&&(h=0),h||this._isMasked(l,c)||(this.buffer[l+c*e]^=1)}break;case 4:for(var _=0;_<e;_++)for(var v=0,d=_>>1&1,p=0;p<e;p++,v++)3===v&&(v=0,d=!d),d||this._isMasked(p,_)||(this.buffer[p+_*e]^=1);break;case 5:for(var y=0,g=0;g<e;g++,y++){3===y&&(y=0);for(var k=0,b=0;b<e;b++,k++)3===k&&(k=0),(b&g&1)+!(!k|!y)||this._isMasked(b,g)||(this.buffer[b+g*e]^=1)}break;case 6:for(var m=0,w=0;w<e;w++,m++){3===m&&(m=0);for(var B=0,O=0;O<e;O++,B++)3===B&&(B=0),(O&w&1)+(B&&B===m)&1||this._isMasked(O,w)||(this.buffer[O+w*e]^=1)}break;case 7:for(var M=0,S=0;S<e;S++,M++){3===M&&(M=0);for(var E=0,j=0;j<e;j++,E++)3===E&&(E=0),(E&&E===M)+(j+S&1)&1||this._isMasked(j,S)||(this.buffer[j+S*e]^=1)}}}},{key:"_calculateMaxLength",value:function(){return this._dataBlock*(this._neccBlock1+this._neccBlock2)+this._neccBlock2}},{key:"_calculatePolynomial",value:function(){this._polynomial[0]=1;for(var e=0;e<this._eccBlock;e++){this._polynomial[e+1]=1;for(var n=e;n>0;n--)this._polynomial[n]=this._polynomial[n]?this._polynomial[n-1]^sn.EXPONENT[t._modN(sn.LOG[this._polynomial[n]]+e)]:this._polynomial[n-1];this._polynomial[0]=sn.EXPONENT[t._modN(sn.LOG[this._polynomial[0]]+e)]}for(var r=0;r<=this._eccBlock;r++)this._polynomial[r]=sn.LOG[this._polynomial[r]]}},{key:"_checkBadness",value:function(){for(var e=0,n=this.width,r=0;r<n-1;r++)for(var i=0;i<n-1;i++)(this.buffer[i+n*r]&&this.buffer[i+1+n*r]&&this.buffer[i+n*(r+1)]&&this.buffer[i+1+n*(r+1)]||!(this.buffer[i+n*r]||this.buffer[i+1+n*r]||this.buffer[i+n*(r+1)]||this.buffer[i+1+n*(r+1)]))&&(e+=t.N2);for(var s=0,o=0;o<n;o++){var u=0;this._badness[0]=0;for(var a=0,f=0;f<n;f++){var c=this.buffer[f+n*o];a===c?this._badness[u]++:this._badness[++u]=1,a=c,s+=a?1:-1}e+=this._getBadness(u)}s<0&&(s=-s);var h=0,l=s;for(l+=l<<2,l<<=1;l>n*n;)l-=n*n,h++;e+=h*t.N4;for(var _=0;_<n;_++){var v=0;this._badness[0]=0;for(var d=0,p=0;p<n;p++){var y=this.buffer[_+n*p];d===y?this._badness[v]++:this._badness[++v]=1,d=y}e+=this._getBadness(v)}return e}},{key:"_convertBitStream",value:function(t){for(var e=0;e<t;e++)this._ecc[e]=this._value.charCodeAt(e);this._stringBuffer=this._ecc.slice(0);var n=this._calculateMaxLength();t>=n-2&&(t=n-2,this._version>9&&t--);var r=t;if(this._version>9){for(this._stringBuffer[r+2]=0,this._stringBuffer[r+3]=0;r--;){var i=this._stringBuffer[r];this._stringBuffer[r+3]|=255&i<<4,this._stringBuffer[r+2]=i>>4}this._stringBuffer[2]|=255&t<<4,this._stringBuffer[1]=t>>4,this._stringBuffer[0]=64|t>>12}else{for(this._stringBuffer[r+1]=0,this._stringBuffer[r+2]=0;r--;){var s=this._stringBuffer[r];this._stringBuffer[r+2]|=255&s<<4,this._stringBuffer[r+1]=s>>4}this._stringBuffer[1]|=255&t<<4,this._stringBuffer[0]=64|t>>4}for(r=t+3-(this._version<10);r<n;)this._stringBuffer[r++]=236,this._stringBuffer[r++]=17}},{key:"_getBadness",value:function(e){for(var n=0,r=0;r<=e;r++)this._badness[r]>=5&&(n+=t.N1+this._badness[r]-5);for(var i=3;i<e-1;i+=2)this._badness[i-2]===this._badness[i+2]&&this._badness[i+2]===this._badness[i-1]&&this._badness[i-1]===this._badness[i+1]&&3*this._badness[i-1]===this._badness[i]&&(0===this._badness[i-3]||i+3>e||3*this._badness[i-3]>=4*this._badness[i]||3*this._badness[i+3]>=4*this._badness[i])&&(n+=t.N3);return n}},{key:"_finish",value:function(){this._stringBuffer=this.buffer.slice(0);var t=0,e=void 0,n=3e4;for(e=0;e<8;e++){this._applyMask(e);var r=this._checkBadness();if(r<n&&(n=r,t=e),7===t)break;this.buffer=this._stringBuffer.slice(0)}for(t!==e&&this._applyMask(t),n=rn.FINAL_FORMAT[t+(this._level-1<<3)],e=0;e<8;e++,n>>=1)1&n&&(this.buffer[this.width-1-e+8*this.width]=1,e<6?this.buffer[8+this.width*e]=1:this.buffer[8+this.width*(e+1)]=1);for(e=0;e<7;e++,n>>=1)1&n&&(this.buffer[8+this.width*(this.width-7+e)]=1,e?this.buffer[6-e+8*this.width]=1:this.buffer[7+8*this.width]=1)}},{key:"_interleaveBlocks",value:function(){var t=this._calculateMaxLength(),e=void 0,n=0;for(e=0;e<this._dataBlock;e++){for(var r=0;r<this._neccBlock1;r++)this._ecc[n++]=this._stringBuffer[e+r*this._dataBlock];for(var i=0;i<this._neccBlock2;i++)this._ecc[n++]=this._stringBuffer[this._neccBlock1*this._dataBlock+e+i*(this._dataBlock+1)]}for(var s=0;s<this._neccBlock2;s++)this._ecc[n++]=this._stringBuffer[this._neccBlock1*this._dataBlock+e+s*(this._dataBlock+1)];for(e=0;e<this._eccBlock;e++)for(var o=0;o<this._neccBlock1+this._neccBlock2;o++)this._ecc[n++]=this._stringBuffer[t+e+o*this._eccBlock];this._stringBuffer=this._ecc}},{key:"_insertAlignments",value:function(){var t=this.width;if(this._version>1)for(var e=nn.BLOCK[this._version],n=t-7;;){for(var r=t-7;r>e-3&&(this._addAlignment(r,n),!(r<e));)r-=e;if(n<=e+9)break;n-=e,this._addAlignment(6,n),this._addAlignment(n,6)}}},{key:"_insertFinders",value:function(){for(var t=this.width,e=0;e<3;e++){var n=0,r=0;1===e&&(n=t-7),2===e&&(r=t-7),this.buffer[r+3+t*(n+3)]=1;for(var i=0;i<6;i++)this.buffer[r+i+t*n]=1,this.buffer[r+t*(n+i+1)]=1,this.buffer[r+6+t*(n+i)]=1,this.buffer[r+i+1+t*(n+6)]=1;for(var s=1;s<5;s++)this._setMask(r+s,n+1),this._setMask(r+1,n+s+1),this._setMask(r+5,n+s),this._setMask(r+s+1,n+5);for(var o=2;o<4;o++)this.buffer[r+o+t*(n+2)]=1,this.buffer[r+2+t*(n+o+1)]=1,this.buffer[r+4+t*(n+o)]=1,this.buffer[r+o+1+t*(n+4)]=1}}},{key:"_insertTimingGap",value:function(){for(var t=this.width,e=0;e<7;e++)this._setMask(7,e),this._setMask(t-8,e),this._setMask(7,e+t-7);for(var n=0;n<8;n++)this._setMask(n,7),this._setMask(n+t-8,7),this._setMask(n,t-8)}},{key:"_insertTimingRowAndColumn",value:function(){for(var t=this.width,e=0;e<t-14;e++)1&e?(this._setMask(8+e,6),this._setMask(6,8+e)):(this.buffer[8+e+6*t]=1,this.buffer[6+t*(8+e)]=1)}},{key:"_insertVersion",value:function(){var t=this.width;if(this._version>6)for(var e=on.BLOCK[this._version-7],n=17,r=0;r<6;r++)for(var i=0;i<3;i++,n--)1&(n>11?this._version>>n-12:e>>n)?(this.buffer[5-r+t*(2-i+t-11)]=1,this.buffer[2-i+t-11+t*(5-r)]=1):(this._setMask(5-r,2-i+t-11),this._setMask(2-i+t-11,5-r))}},{key:"_isMasked",value:function(e,n){var r=t._getMaskBit(e,n);return 1===this._mask[r]}},{key:"_pack",value:function(){for(var t=this.width-1,e=this.width-1,n=1,r=1,i=(this._dataBlock+this._eccBlock)*(this._neccBlock1+this._neccBlock2)+this._neccBlock2,s=0;s<i;s++)for(var o=this._stringBuffer[s],u=0;u<8;u++,o<<=1){128&o&&(this.buffer[t+this.width*e]=1);do{r?t--:(t++,n?0!==e?e--:(t-=2,n=!n,6===t&&(t--,e=9)):e!==this.width-1?e++:(t-=2,n=!n,6===t&&(t--,e-=8))),r=!r}while(this._isMasked(t,e))}}},{key:"_reverseMask",value:function(){for(var t=this.width,e=0;e<9;e++)this._setMask(e,8);for(var n=0;n<8;n++)this._setMask(n+t-8,8),
+this._setMask(8,n);for(var r=0;r<7;r++)this._setMask(8,r+t-7)}},{key:"_setMask",value:function(e,n){var r=t._getMaskBit(e,n);this._mask[r]=1}},{key:"_syncMask",value:function(){for(var t=this.width,e=0;e<t;e++)for(var n=0;n<=e;n++)this.buffer[n+t*e]&&this._setMask(n,e)}}]),t}(),an=function(t){function e(){return U(this,e),Ue(this,(e.__proto__||I(e)).apply(this,arguments))}return He(e,t),G(e,[{key:"draw",value:function(){this.element.src=this.qrious.toDataURL()}},{key:"reset",value:function(){this.element.src=""}},{key:"resize",value:function(){this.element.width=this.element.height=this.qrious.size}}]),e}(tn),fn=function(){function t(e,n,r,i){U(this,t),this._name=e,this._defaultValue=n,this._valueTransformer=r,this._fieldName="function"==typeof i?i(this):"_"+e}return G(t,[{key:"transform",value:function(t){var e=this._valueTransformer;return"function"==typeof e?e(t,this):t}},{key:"fieldName",get:function(){return this._fieldName}},{key:"name",get:function(){return this._name}},{key:"defaultValue",get:function(){return this._defaultValue}}]),t}(),cn=Wt.f,hn=function(t){return function(e){for(var n,r=tt(e),i=ct(r),s=i.length,o=0,u=[];s>o;)cn.call(r,n=i[o++])&&u.push(t?[n,r[n]]:r[n]);return u}}(!1);x(x.S,"Object",{values:function(t){return hn(t)}});var ln=y.Object.values,_n=e(function(t){t.exports={default:ln,__esModule:!0}}),vn=t(_n),dn=function(){function t(e){var n=this;U(this,t),this._options={},e.forEach(function(t){n._options[t.name]=t})}return G(t,null,[{key:"_get",value:function(t,e){return e[t.fieldName]}},{key:"_set",value:function(t,e,n){var r=t.fieldName,i=n[r],s=t.transform(null!=e?e:t.defaultValue);return n[r]=s,s!==i}}]),G(t,[{key:"applyDefaults",value:function(e){var n=this._options;for(var r in n)if(Qe.hasOwn(n,r)){var i=n[r];t._set(i,i.defaultValue,e)}}},{key:"exists",value:function(t){return null!=this._options[t]}},{key:"get",value:function(e,n){return t._get(this._options[e],n)}},{key:"getAll",value:function(e){var n=this._options,r={};for(var i in n)Qe.hasOwn(n,i)&&(r[i]=t._get(n[i],e));return r}},{key:"set",value:function(e,n,r){var i=this._options[e];if(!i)throw new Error("Invalid option: "+e);return t._set(i,n,r)}},{key:"setAll",value:function(t,e){if(!t)return!1;var n=!1;for(var r in t)Qe.hasOwn(t,r)&&this.set(r,t[r],e)&&(n=!0);return n}},{key:"options",get:function(){return vn(this._options)}}]),t}(),pn=function(){function t(){U(this,t),this._services={}}return G(t,[{key:"getService",value:function(t){var e=this._services[t];if(!e)throw new Error("Service is not being managed with name: "+t);return e}},{key:"setService",value:function(t,e){if(this._services[t])throw new Error("Service is already managed with name: "+t);e&&(this._services[t]=e)}}]),t}(),yn=new dn([new fn("background","white"),new fn("backgroundAlpha",1,Qe.abs),new fn("element"),new fn("foreground","black"),new fn("foregroundAlpha",1,Qe.abs),new fn("level","L",Qe.toUpperCase),new fn("mime","image/png"),new fn("padding",null,Qe.abs),new fn("size",100,Qe.abs),new fn("value","")]),gn=new pn,kn=function(){function t(e){U(this,t),yn.applyDefaults(this),yn.setAll(e,this);var n=yn.get("element",this),r=gn.getService("element"),i=n&&r.isCanvas(n)?n:r.createCanvas(),s=n&&r.isImage(n)?n:r.createImage();this._canvasRenderer=new en(this,i,!0),this._imageRenderer=new an(this,s,s===n),this.update()}return G(t,null,[{key:"use",value:function(t){gn.setService(t.getName(),t)}},{key:"DEFAULTS",get:function(){var t={};return yn.options.forEach(function(e){t[e.name]=e.defaultValue}),t}},{key:"VERSION",get:function(){return"2.3.0"}}]),G(t,[{key:"get",value:function(){return yn.getAll(this)}},{key:"set",value:function(t){yn.setAll(t,this)&&this.update()}},{key:"toDataURL",value:function(t){return this.canvas.toDataURL(t||this.mime)}},{key:"update",value:function(){var t=new un({level:this.level,value:this.value});this._canvasRenderer.render(t),this._imageRenderer.render(t)}},{key:"background",get:function(){return yn.get("background",this)},set:function(t){yn.set("background",t,this)&&this.update()}},{key:"backgroundAlpha",get:function(){return yn.get("backgroundAlpha",this)},set:function(t){yn.set("backgroundAlpha",t,this)&&this.update()}},{key:"canvas",get:function(){return this._canvasRenderer.getElement()}},{key:"foreground",get:function(){return yn.get("foreground",this)},set:function(t){yn.set("foreground",t,this)&&this.update()}},{key:"foregroundAlpha",get:function(){return yn.get("foregroundAlpha",this)},set:function(t){yn.set("foregroundAlpha",t,this)&&this.update()}},{key:"image",get:function(){return this._imageRenderer.getElement()}},{key:"level",get:function(){return yn.get("level",this)},set:function(t){yn.set("level",t,this)&&this.update()}},{key:"mime",get:function(){return yn.get("mime",this)},set:function(t){yn.set("mime",t,this)&&this.update()}},{key:"padding",get:function(){return yn.get("padding",this)},set:function(t){yn.set("padding",t,this)&&this.update()}},{key:"size",get:function(){return yn.get("size",this)},set:function(t){yn.set("size",t,this)&&this.update()}},{key:"value",get:function(){return yn.get("value",this)},set:function(t){yn.set("value",t,this)&&this.update()}}]),t}();return kn.use(new $e),kn});
 
 //# sourceMappingURL=qrious.min.js.map

LICENSE.md

 QRious  
-Copyright (C) 2016 Alasdair Mercer  
+Copyright (C) 2017 Alasdair Mercer  
 Copyright (C) 2010 Tom Zerucha  
@@ -4,0 +4,0 @@

package.json

 {
   "name": "qrious",
-  "version": "2.2.0",
+  "version": "2.3.0",
   "description": "Library for QR code generation using canvas",
@@ -27,20 +27,20 @@ "homepage": "https://github.com/neocotic/qrious",
   "optionalDependencies": {
-    "canvas": "^1.3.12"
+    "canvas": "^1.6.5"
   },
   "devDependencies": {
-    "babel-eslint": "^7.0.0",
-    "babel-plugin-transform-runtime": "^6.15.0",
-    "babel-preset-es2015": "^6.16.0",
-    "babel-runtime": "^6.11.6",
-    "eslint-config-skelp": "^0.1.5",
+    "babel-eslint": "^7.2.3",
+    "babel-plugin-transform-runtime": "^6.23.0",
+    "babel-preset-es2015": "^6.24.1",
+    "babel-runtime": "^6.23.0",
+    "eslint-config-notninja": "^0.1.1",
     "grunt": "^1.0.1",
     "grunt-cli": "^1.2.0",
-    "grunt-contrib-clean": "^1.0.0",
+    "grunt-contrib-clean": "^1.1.0",
     "grunt-contrib-watch": "^1.0.0",
     "grunt-eslint": "^19.0.0",
-    "grunt-rollup": "^0.8.0",
-    "rollup-plugin-babel": "^2.6.1",
-    "rollup-plugin-commonjs": "^5.0.4",
-    "rollup-plugin-node-resolve": "^2.0.0",
-    "rollup-plugin-uglify": "^1.0.1",
+    "grunt-rollup": "^1.0.1",
+    "rollup-plugin-babel": "^2.7.1",
+    "rollup-plugin-commonjs": "^8.0.2",
+    "rollup-plugin-node-resolve": "~2.0.0",
+    "rollup-plugin-uglify": "^1.0.2",
     "semver": "^5.3.0"
@@ -50,2 +50,3 @@ },
   "main": "dist/cjs/qrious.js",
+  "module": "src/runtime/node.js",
   "jsnext:main": "src/runtime/node.js",
@@ -52,0 +53,0 @@ "scripts": {

README.md

@@ -11,5 +11,6 @@ .oooooo.      ooooooooo.    o8o
 
+[![Chat](https://img.shields.io/gitter/room/neocotic/qrious.svg?style=flat-square)](https://gitter.im/neocotic/qrious)
 [![Build Status](https://img.shields.io/travis/neocotic/qrious/develop.svg?style=flat-square)](https://travis-ci.org/neocotic/qrious)
-[![Dependency Status](https://img.shields.io/david/neocotic/qrious.svg?style=flat-square)](https://david-dm.org/neocotic/qrious)
-[![Dev Dependency Status](https://img.shields.io/david/dev/neocotic/qrious.svg?style=flat-square)](https://david-dm.org/neocotic/qrious#info=devDependencies)
+[![Optional Dependency Status](https://img.shields.io/david/optional/neocotic/qrious.svg?style=flat-square)](https://david-dm.org/neocotic/qrious?type=optional)
+[![Dev Dependency Status](https://img.shields.io/david/dev/neocotic/qrious.svg?style=flat-square)](https://david-dm.org/neocotic/qrious?type=dev)
 [![License](https://img.shields.io/npm/l/qrious.svg?style=flat-square)](https://github.com/neocotic/qrious/blob/master/LICENSE.md)
@@ -41,4 +42,4 @@ [![Release](https://img.shields.io/npm/v/qrious.svg?style=flat-square)](https://www.npmjs.com/package/qrious)
 
-* [Development Version](https://github.com/neocotic/qrious/blob/master/dist/umd/qrious.js)
-* [Production Version](https://github.com/neocotic/qrious/blob/master/dist/umd/qrious.min.js)
+* [Development Version](https://cdn.rawgit.com/neocotic/qrious/master/dist/umd/qrious.js) (123kb - [Source Map](https://cdn.rawgit.com/neocotic/qrious/master/dist/umd/qrious.js.map))
+* [Production Version](https://cdn.rawgit.com/neocotic/qrious/master/dist/umd/qrious.min.js) (37kb - [Source Map](https://cdn.rawgit.com/neocotic/qrious/master/dist/umd/qrious.min.js.map))
 
@@ -79,4 +80,4 @@ ### Node.js Dependencies
           value: 'https://github.com/neocotic/qrious'
-        })
-      })()
+        });
+      })();
     </script>
@@ -90,14 +91,14 @@ </body>
 ``` javascript
-const express = require('express')
-const QRious = require('qrious')
+const express = require('express');
+const QRious = require('qrious');
 
-const app = express()
+const app = express();
 
 app.get('/qr', (req, res) => {
-  const qr = new QRious({ value: 'https://github.com/neocotic/qrious' })
+  const qr = new QRious({ value: 'https://github.com/neocotic/qrious' });
 
-  res.end(new Buffer(qr.toDataURL(), 'base64'))
-})
+  res.end(new Buffer(qr.toDataURL(), 'base64'));
+});
 
-app.listen(3000)
+app.listen(3000);
 ```
@@ -125,13 +126,31 @@
 ``` javascript
-const qr = new QRious()
-qr.background = '#000'
-qr.backgroundAlpha = 0.8
-qr.foreground = '#fff'
-qr.foregroundAlpha = 0.8
-qr.level = 'H'
-qr.padding = 25
-qr.size = 500
-qr.value = 'https://github.com/neocotic/qrious'
+const qr = new QRious();
+qr.background = 'green';
+qr.backgroundAlpha = 0.8;
+qr.foreground = 'blue';
+qr.foregroundAlpha = 0.8;
+qr.level = 'H';
+qr.padding = 25;
+qr.size = 500;
+qr.value = 'https://github.com/neocotic/qrious';
 ```
 
+The QR code will automatically update when you change one of these fields, so be wary when you plan on changing lots of
+fields at the same time. You probably want to make a single call to `set(options)` instead as it will only update the QR
+code once:
+
+``` javascript
+const qr = new QRious();
+qr.set({
+  background: 'green',
+  backgroundAlpha: 0.8,
+  foreground: 'blue',
+  foregroundAlpha: 0.8,
+  level: 'H',
+  padding: 25,
+  size: 500,
+  value: 'https://github.com/neocotic/qrious'
+});
+```
+
 These can also be passed as options to the constructor itself:
@@ -141,5 +160,5 @@
 const qr = new QRious({
-  background: '#000',
+  background: 'green',
   backgroundAlpha: 0.8,
-  foreground: '#fff',
+  foreground: 'blue',
   foregroundAlpha: 0.8,
@@ -150,3 +169,3 @@ level: 'H',
   value: 'https://github.com/neocotic/qrious'
-})
+});
 ```
@@ -163,5 +182,5 @@
   value: 'https://github.com/neocotic/qrious'
-})
+});
 
-qr.canvas.parentNode.appendChild(qr.image)
+qr.canvas.parentNode.appendChild(qr.image);
 ```
@@ -172,9 +191,9 @@
 ``` javascript
-const canvas = document.querySelector('canvas')
+const canvas = document.querySelector('canvas');
 const qr = new QRious({
   element: canvas,
   value: 'https://github.com/neocotic/qrious'
-})
+});
 
-console.log(qr === canvas.qrious)
+qr === canvas.qrious;
 //=> true
@@ -191,7 +210,7 @@ ```
   value: 'https://github.com/neocotic/qrious'
-})
+});
 
-console.log(qr.toDataURL())
+qr.toDataURL();
 //=> "data:image/png;base64,iVBOR...AIpqDnseH86KAAAAAElFTkSuQmCC"
-console.log(qr.toDataURL('image/jpeg'))
+qr.toDataURL('image/jpeg');
 //=> "data:image/jpeg;base64,/9j/...xqAqIqgKFAAAAAq3RRQAUUUUAf/Z"
@@ -205,4 +224,4 @@ ```
 ``` javascript
-console.log(QRious.VERSION)
-//=> "2.2.0"
+QRious.VERSION;
+//=> "2.3.0"
 ```
@@ -236,5 +255,5 @@
 
-Copyright © 2016 Alasdair Mercer  
+Copyright © 2017 Alasdair Mercer  
 Copyright © 2010 Tom Zerucha
 
 See [LICENSE.md](https://github.com/neocotic/qrious/blob/master/LICENSE.md) for more information on our GPLv3 license.

src/Alignment.js

 /*
  * QRious
- * Copyright (C) 2016 Alasdair Mercer
+ * Copyright (C) 2017 Alasdair Mercer
  * Copyright (C) 2010 Tom Zerucha
@@ -41,3 +41,3 @@ *
       26, 26, 28, 28, 24, 24, 26, 26, 26, 28, 28, 24, 26, 26, 26, 28, 28
-    ]
+    ];
   }
@@ -47,2 +47,2 @@
 
-export default Alignment
+export default Alignment;

src/ErrorCorrection.js

 /*
  * QRious
- * Copyright (C) 2016 Alasdair Mercer
+ * Copyright (C) 2017 Alasdair Mercer
  * Copyright (C) 2010 Tom Zerucha
@@ -81,3 +81,3 @@ *
       19, 6,  118, 30,    18, 31, 47,  28,    34, 34, 24,  30,    20, 61, 15,  30
-    ]
+    ];
   }
@@ -102,3 +102,3 @@
       0x1689, 0x13be, 0x1ce7, 0x19d0, 0x0762, 0x0255, 0x0d0c, 0x083b
-    ]
+    ];
   }
@@ -119,3 +119,3 @@
       H: 4
-    }
+    };
   }
@@ -125,2 +125,2 @@
 
-export default ErrorCorrection
+export default ErrorCorrection;

src/Frame.js

 /*
  * QRious
- * Copyright (C) 2016 Alasdair Mercer
+ * Copyright (C) 2017 Alasdair Mercer
  * Copyright (C) 2010 Tom Zerucha
@@ -20,6 +20,6 @@ *
 
-import Alignment from './Alignment'
-import ErrorCorrection from './ErrorCorrection'
-import Galois from './Galois'
-import Version from './Version'
+import Alignment from './Alignment';
+import ErrorCorrection from './ErrorCorrection';
+import Galois from './Galois';
+import Version from './Version';
 
@@ -34,26 +34,26 @@ /**
   static _createArray(length) {
-    const array = []
+    const array = [];
 
     for (let i = 0; i < length; i++) {
-      array[i] = 0
+      array[i] = 0;
     }
 
-    return array
+    return array;
   }
 
   static _getMaskBit(x, y) {
-    let bit
+    let bit;
 
     if (x > y) {
-      bit = x
-      x = y
-      y = bit
+      bit = x;
+      x = y;
+      y = bit;
     }
 
-    bit = y
-    bit += y * y
-    bit >>= 1
-    bit += x
+    bit = y;
+    bit += y * y;
+    bit >>= 1;
+    bit += x;
 
-    return bit
+    return bit;
   }
@@ -63,7 +63,7 @@
     while (x >= 255) {
-      x -= 255
-      x = (x >> 8) + (x & 255)
+      x -= 255;
+      x = (x >> 8) + (x & 255);
     }
 
-    return x
+    return x;
   }
@@ -73,12 +73,12 @@
   static get N1() {
-    return 3
+    return 3;
   }
   static get N2() {
-    return 3
+    return 3;
   }
   static get N3() {
-    return 40
+    return 40;
   }
   static get N4() {
-    return 10
+    return 10;
   }
@@ -93,36 +93,36 @@
   constructor(options) {
-    this._badness = []
-    this._level = ErrorCorrection.LEVELS[options.level]
-    this._polynomial = []
-    this._value = options.value
-    this._valueLength = this._value.length
-    this._version = 0
-    this._stringBuffer = []
+    this._badness = [];
+    this._level = ErrorCorrection.LEVELS[options.level];
+    this._polynomial = [];
+    this._value = options.value;
+    this._valueLength = this._value.length;
+    this._version = 0;
+    this._stringBuffer = [];
 
-    let dataBlock
-    let eccBlock
-    let neccBlock1
-    let neccBlock2
+    let dataBlock;
+    let eccBlock;
+    let neccBlock1;
+    let neccBlock2;
 
     while (this._version < 40) {
-      this._version++
+      this._version++;
 
-      let index = ((this._level - 1) * 4) + ((this._version - 1) * 16)
+      let index = ((this._level - 1) * 4) + ((this._version - 1) * 16);
 
-      neccBlock1 = ErrorCorrection.BLOCKS[index++]
-      neccBlock2 = ErrorCorrection.BLOCKS[index++]
-      dataBlock = ErrorCorrection.BLOCKS[index++]
-      eccBlock = ErrorCorrection.BLOCKS[index]
+      neccBlock1 = ErrorCorrection.BLOCKS[index++];
+      neccBlock2 = ErrorCorrection.BLOCKS[index++];
+      dataBlock = ErrorCorrection.BLOCKS[index++];
+      eccBlock = ErrorCorrection.BLOCKS[index];
 
-      index = (dataBlock * (neccBlock1 + neccBlock2)) + neccBlock2 - 3 + (this._version <= 9)
+      index = (dataBlock * (neccBlock1 + neccBlock2)) + neccBlock2 - 3 + (this._version <= 9);
 
       if (this._valueLength <= index) {
-        break
+        break;
       }
     }
 
-    this._dataBlock = dataBlock
-    this._eccBlock = eccBlock
-    this._neccBlock1 = neccBlock1
-    this._neccBlock2 = neccBlock2
+    this._dataBlock = dataBlock;
+    this._eccBlock = eccBlock;
+    this._neccBlock1 = neccBlock1;
+    this._neccBlock2 = neccBlock2;
 
@@ -136,3 +136,3 @@ /**
     // FIXME: Ensure that it fits instead of being truncated.
-    this.width = 17 + (4 * this._version)
+    this.width = 17 + (4 * this._version);
 
@@ -145,42 +145,42 @@ /**
      */
-    this.buffer = Frame._createArray(this.width * this.width)
+    this.buffer = Frame._createArray(this.width * this.width);
 
     this._ecc = Frame._createArray(this._dataBlock + ((this._dataBlock + this._eccBlock) *
-      (this._neccBlock1 + this._neccBlock2)) + this._neccBlock2)
-    this._mask = Frame._createArray(((this.width * (this.width + 1)) + 1) / 2)
+      (this._neccBlock1 + this._neccBlock2)) + this._neccBlock2);
+    this._mask = Frame._createArray(((this.width * (this.width + 1)) + 1) / 2);
 
-    this._insertFinders()
-    this._insertAlignments()
+    this._insertFinders();
+    this._insertAlignments();
 
     // Insert single foreground cell.
-    this.buffer[8 + (this.width * (this.width - 8))] = 1
+    this.buffer[8 + (this.width * (this.width - 8))] = 1;
 
-    this._insertTimingGap()
-    this._reverseMask()
-    this._insertTimingRowAndColumn()
-    this._insertVersion()
-    this._syncMask()
-    this._convertBitStream(this._value.length)
-    this._calculatePolynomial()
-    this._appendEccToData()
-    this._interleaveBlocks()
-    this._pack()
-    this._finish()
+    this._insertTimingGap();
+    this._reverseMask();
+    this._insertTimingRowAndColumn();
+    this._insertVersion();
+    this._syncMask();
+    this._convertBitStream(this._value.length);
+    this._calculatePolynomial();
+    this._appendEccToData();
+    this._interleaveBlocks();
+    this._pack();
+    this._finish();
   }
 
   _addAlignment(x, y) {
-    this.buffer[x + (this.width * y)] = 1
+    this.buffer[x + (this.width * y)] = 1;
 
     for (let i = -2; i < 2; i++) {
-      this.buffer[x + i + (this.width * (y - 2))] = 1
-      this.buffer[x - 2 + (this.width * (y + i + 1))] = 1
-      this.buffer[x + 2 + (this.width * (y + i))] = 1
-      this.buffer[x + i + 1 + (this.width * (y + 2))] = 1
+      this.buffer[x + i + (this.width * (y - 2))] = 1;
+      this.buffer[x - 2 + (this.width * (y + i + 1))] = 1;
+      this.buffer[x + 2 + (this.width * (y + i))] = 1;
+      this.buffer[x + i + 1 + (this.width * (y + 2))] = 1;
     }
 
     for (let i = 0; i < 2; i++) {
-      this._setMask(x - 1, y + i)
-      this._setMask(x + 1, y - i)
-      this._setMask(x - i, y - 1)
-      this._setMask(x + i, y + 1)
+      this._setMask(x - 1, y + i);
+      this._setMask(x + 1, y - i);
+      this._setMask(x - i, y - 1);
+      this._setMask(x + i, y + 1);
     }
@@ -191,7 +191,7 @@ }
     for (let i = 0; i < eccLength; i++) {
-      this._stringBuffer[ecc + i] = 0
+      this._stringBuffer[ecc + i] = 0;
     }
 
     for (let i = 0; i < dataLength; i++) {
-      const bit = Galois.LOG[this._stringBuffer[data + i] ^ this._stringBuffer[ecc]]
+      const bit = Galois.LOG[this._stringBuffer[data + i] ^ this._stringBuffer[ecc]];
 
@@ -201,7 +201,7 @@ if (bit !== 255) {
           this._stringBuffer[ecc + j - 1] = this._stringBuffer[ecc + j] ^
-            Galois.EXPONENT[Frame._modN(bit + this._polynomial[eccLength - j])]
+            Galois.EXPONENT[Frame._modN(bit + this._polynomial[eccLength - j])];
         }
       } else {
         for (let j = ecc; j < ecc + eccLength; j++) {
-          this._stringBuffer[j] = this._stringBuffer[j + 1]
+          this._stringBuffer[j] = this._stringBuffer[j + 1];
         }
@@ -211,3 +211,3 @@ }
       this._stringBuffer[ecc + eccLength - 1] = bit === 255 ? 0
-        : Galois.EXPONENT[Frame._modN(bit + this._polynomial[0])]
+        : Galois.EXPONENT[Frame._modN(bit + this._polynomial[0])];
     }
@@ -217,17 +217,17 @@ }
   _appendEccToData() {
-    let data = 0
-    let ecc = this._calculateMaxLength()
+    let data = 0;
+    let ecc = this._calculateMaxLength();
 
     for (let i = 0; i < this._neccBlock1; i++) {
-      this._appendData(data, this._dataBlock, ecc, this._eccBlock)
+      this._appendData(data, this._dataBlock, ecc, this._eccBlock);
 
-      data += this._dataBlock
-      ecc += this._eccBlock
+      data += this._dataBlock;
+      ecc += this._eccBlock;
     }
 
     for (let i = 0; i < this._neccBlock2; i++) {
-      this._appendData(data, this._dataBlock + 1, ecc, this._eccBlock)
+      this._appendData(data, this._dataBlock + 1, ecc, this._eccBlock);
 
-      data += this._dataBlock + 1
-      ecc += this._eccBlock
+      data += this._dataBlock + 1;
+      ecc += this._eccBlock;
     }
@@ -237,3 +237,3 @@ }
   _applyMask(mask) {
-    const width = this.width
+    const width = this.width;
 
@@ -245,3 +245,3 @@ switch (mask) {
           if (!((x + y) & 1) && !this._isMasked(x, y)) {
-            this.buffer[x + (y * width)] ^= 1
+            this.buffer[x + (y * width)] ^= 1;
           }
@@ -251,3 +251,3 @@ }
 
-      break
+      break;
     case 1:
@@ -257,3 +257,3 @@ for (let y = 0; y < width; y++) {
           if (!(y & 1) && !this._isMasked(x, y)) {
-            this.buffer[x + (y * width)] ^= 1
+            this.buffer[x + (y * width)] ^= 1;
           }
@@ -263,3 +263,3 @@ }
 
-      break
+      break;
     case 2:
@@ -269,7 +269,7 @@ for (let y = 0; y < width; y++) {
           if (r3x === 3) {
-            r3x = 0
+            r3x = 0;
           }
 
           if (!r3x && !this._isMasked(x, y)) {
-            this.buffer[x + (y * width)] ^= 1
+            this.buffer[x + (y * width)] ^= 1;
           }
@@ -279,7 +279,7 @@ }
 
-      break
+      break;
     case 3:
       for (let r3y = 0, y = 0; y < width; y++, r3y++) {
         if (r3y === 3) {
-          r3y = 0
+          r3y = 0;
         }
@@ -289,7 +289,7 @@
           if (r3x === 3) {
-            r3x = 0
+            r3x = 0;
           }
 
           if (!r3x && !this._isMasked(x, y)) {
-            this.buffer[x + (y * width)] ^= 1
+            this.buffer[x + (y * width)] ^= 1;
           }
@@ -299,3 +299,3 @@ }
 
-      break
+      break;
     case 4:
@@ -305,8 +305,8 @@ for (let y = 0; y < width; y++) {
           if (r3x === 3) {
-            r3x = 0
-            r3y = !r3y
+            r3x = 0;
+            r3y = !r3y;
           }
 
           if (!r3y && !this._isMasked(x, y)) {
-            this.buffer[x + (y * width)] ^= 1
+            this.buffer[x + (y * width)] ^= 1;
           }
@@ -316,7 +316,7 @@ }
 
-      break
+      break;
     case 5:
       for (let r3y = 0, y = 0; y < width; y++, r3y++) {
         if (r3y === 3) {
-          r3y = 0
+          r3y = 0;
         }
@@ -326,7 +326,7 @@
           if (r3x === 3) {
-            r3x = 0
+            r3x = 0;
           }
 
           if (!((x & y & 1) + !(!r3x | !r3y)) && !this._isMasked(x, y)) {
-            this.buffer[x + (y * width)] ^= 1
+            this.buffer[x + (y * width)] ^= 1;
           }
@@ -336,7 +336,7 @@ }
 
-      break
+      break;
     case 6:
       for (let r3y = 0, y = 0; y < width; y++, r3y++) {
         if (r3y === 3) {
-          r3y = 0
+          r3y = 0;
         }
@@ -346,7 +346,7 @@
           if (r3x === 3) {
-            r3x = 0
+            r3x = 0;
           }
 
           if (!((x & y & 1) + (r3x && r3x === r3y) & 1) && !this._isMasked(x, y)) {
-            this.buffer[x + (y * width)] ^= 1
+            this.buffer[x + (y * width)] ^= 1;
           }
@@ -356,7 +356,7 @@ }
 
-      break
+      break;
     case 7:
       for (let r3y = 0, y = 0; y < width; y++, r3y++) {
         if (r3y === 3) {
-          r3y = 0
+          r3y = 0;
         }
@@ -366,7 +366,7 @@
           if (r3x === 3) {
-            r3x = 0
+            r3x = 0;
           }
 
           if (!((r3x && r3x === r3y) + (x + y & 1) & 1) && !this._isMasked(x, y)) {
-            this.buffer[x + (y * width)] ^= 1
+            this.buffer[x + (y * width)] ^= 1;
           }
@@ -376,3 +376,3 @@ }
 
-      break
+      break;
     }
@@ -382,17 +382,17 @@ }
   _calculateMaxLength() {
-    return (this._dataBlock * (this._neccBlock1 + this._neccBlock2)) + this._neccBlock2
+    return (this._dataBlock * (this._neccBlock1 + this._neccBlock2)) + this._neccBlock2;
   }
 
   _calculatePolynomial() {
-    this._polynomial[0] = 1
+    this._polynomial[0] = 1;
 
     for (let i = 0; i < this._eccBlock; i++) {
-      this._polynomial[i + 1] = 1
+      this._polynomial[i + 1] = 1;
 
       for (let j = i; j > 0; j--) {
         this._polynomial[j] = this._polynomial[j] ? this._polynomial[j - 1] ^
-          Galois.EXPONENT[Frame._modN(Galois.LOG[this._polynomial[j]] + i)] : this._polynomial[j - 1]
+          Galois.EXPONENT[Frame._modN(Galois.LOG[this._polynomial[j]] + i)] : this._polynomial[j - 1];
       }
 
-      this._polynomial[0] = Galois.EXPONENT[Frame._modN(Galois.LOG[this._polynomial[0]] + i)]
+      this._polynomial[0] = Galois.EXPONENT[Frame._modN(Galois.LOG[this._polynomial[0]] + i)];
     }
@@ -402,3 +402,3 @@
     for (let i = 0; i <= this._eccBlock; i++) {
-      this._polynomial[i] = Galois.LOG[this._polynomial[i]]
+      this._polynomial[i] = Galois.LOG[this._polynomial[i]];
     }
@@ -408,4 +408,4 @@ }
   _checkBadness() {
-    let bad = 0
-    const width = this.width
+    let bad = 0;
+    const width = this.width;
 
@@ -425,3 +425,3 @@ // Blocks of same colour.
           this.buffer[x + 1 + (width * (y + 1))])) {
-          bad += Frame.N2
+          bad += Frame.N2;
         }
@@ -431,64 +431,64 @@ }
 
-    let bw = 0
+    let bw = 0;
 
     // X runs.
     for (let y = 0; y < width; y++) {
-      let h = 0
+      let h = 0;
 
-      this._badness[0] = 0
+      this._badness[0] = 0;
 
       for (let b = 0, x = 0; x < width; x++) {
-        const b1 = this.buffer[x + (width * y)]
+        const b1 = this.buffer[x + (width * y)];
 
         if (b === b1) {
-          this._badness[h]++
+          this._badness[h]++;
         } else {
-          this._badness[++h] = 1
+          this._badness[++h] = 1;
         }
 
-        b = b1
-        bw += b ? 1 : -1
+        b = b1;
+        bw += b ? 1 : -1;
       }
 
-      bad += this._getBadness(h)
+      bad += this._getBadness(h);
     }
 
     if (bw < 0) {
-      bw = -bw
+      bw = -bw;
     }
 
-    let count = 0
-    let big = bw
-    big += big << 2
-    big <<= 1
+    let count = 0;
+    let big = bw;
+    big += big << 2;
+    big <<= 1;
 
     while (big > width * width) {
-      big -= width * width
-      count++
+      big -= width * width;
+      count++;
     }
 
-    bad += count * Frame.N4
+    bad += count * Frame.N4;
 
     // Y runs.
     for (let x = 0; x < width; x++) {
-      let h = 0
+      let h = 0;
 
-      this._badness[0] = 0
+      this._badness[0] = 0;
 
       for (let b = 0, y = 0; y < width; y++) {
-        const b1 = this.buffer[x + (width * y)]
+        const b1 = this.buffer[x + (width * y)];
 
         if (b === b1) {
-          this._badness[h]++
+          this._badness[h]++;
         } else {
-          this._badness[++h] = 1
+          this._badness[++h] = 1;
         }
 
-        b = b1
+        b = b1;
       }
 
-      bad += this._getBadness(h)
+      bad += this._getBadness(h);
     }
 
-    return bad
+    return bad;
   }
@@ -499,14 +499,14 @@
     for (let i = 0; i < length; i++) {
-      this._ecc[i] = this._value.charCodeAt(i)
+      this._ecc[i] = this._value.charCodeAt(i);
     }
 
-    this._stringBuffer = this._ecc.slice(0)
+    this._stringBuffer = this._ecc.slice(0);
 
-    const maxLength = this._calculateMaxLength()
+    const maxLength = this._calculateMaxLength();
 
     if (length >= maxLength - 2) {
-      length = maxLength - 2
+      length = maxLength - 2;
 
       if (this._version > 9) {
-        length--
+        length--;
       }
@@ -516,39 +516,39 @@ }
     // Shift and re-pack to insert length prefix.
-    let index = length
+    let index = length;
 
     if (this._version > 9) {
-      this._stringBuffer[index + 2] = 0
-      this._stringBuffer[index + 3] = 0
+      this._stringBuffer[index + 2] = 0;
+      this._stringBuffer[index + 3] = 0;
 
       while (index--) {
-        const bit = this._stringBuffer[index]
+        const bit = this._stringBuffer[index];
 
-        this._stringBuffer[index + 3] |= 255 & (bit << 4)
-        this._stringBuffer[index + 2] = bit >> 4
+        this._stringBuffer[index + 3] |= 255 & (bit << 4);
+        this._stringBuffer[index + 2] = bit >> 4;
       }
 
-      this._stringBuffer[2] |= 255 & (length << 4)
-      this._stringBuffer[1] = length >> 4
-      this._stringBuffer[0] = 0x40 | (length >> 12)
+      this._stringBuffer[2] |= 255 & (length << 4);
+      this._stringBuffer[1] = length >> 4;
+      this._stringBuffer[0] = 0x40 | (length >> 12);
     } else {
-      this._stringBuffer[index + 1] = 0
-      this._stringBuffer[index + 2] = 0
+      this._stringBuffer[index + 1] = 0;
+      this._stringBuffer[index + 2] = 0;
 
       while (index--) {
-        const bit = this._stringBuffer[index]
+        const bit = this._stringBuffer[index];
 
-        this._stringBuffer[index + 2] |= 255 & (bit << 4)
-        this._stringBuffer[index + 1] = bit >> 4
+        this._stringBuffer[index + 2] |= 255 & (bit << 4);
+        this._stringBuffer[index + 1] = bit >> 4;
       }
 
-      this._stringBuffer[1] |= 255 & (length << 4)
-      this._stringBuffer[0] = 0x40 | (length >> 4)
+      this._stringBuffer[1] |= 255 & (length << 4);
+      this._stringBuffer[0] = 0x40 | (length >> 4);
     }
 
     // Fill to end with pad pattern.
-    index = length + 3 - (this._version < 10)
+    index = length + 3 - (this._version < 10);
 
     while (index < maxLength) {
-      this._stringBuffer[index++] = 0xec
-      this._stringBuffer[index++] = 0x11
+      this._stringBuffer[index++] = 0xec;
+      this._stringBuffer[index++] = 0x11;
     }
@@ -558,7 +558,7 @@ }
   _getBadness(length) {
-    let badRuns = 0
+    let badRuns = 0;
 
     for (let i = 0; i <= length; i++) {
       if (this._badness[i] >= 5) {
-        badRuns += Frame.N1 + this._badness[i] - 5
+        badRuns += Frame.N1 + this._badness[i] - 5;
       }
@@ -577,7 +577,7 @@ }
         this._badness[i + 3] * 3 >= this._badness[i] * 4)) {
-        badRuns += Frame.N3
+        badRuns += Frame.N3;
       }
     }
 
-    return badRuns
+    return badRuns;
   }
@@ -587,7 +587,7 @@
     // Save pre-mask copy of frame.
-    this._stringBuffer = this.buffer.slice(0)
+    this._stringBuffer = this.buffer.slice(0);
 
-    let bit = 0
-    let i
-    let mask = 30000
+    let bit = 0;
+    let i;
+    let mask = 30000;
 
@@ -600,10 +600,10 @@ /*
       // Returns foreground-background imbalance.
-      this._applyMask(i)
+      this._applyMask(i);
 
-      const currentMask = this._checkBadness()
+      const currentMask = this._checkBadness();
 
       // Is current mask better than previous best?
       if (currentMask < mask) {
-        mask = currentMask
-        bit = i
+        mask = currentMask;
+        bit = i;
       }
@@ -613,7 +613,7 @@
       if (bit === 7) {
-        break
+        break;
       }
 
       // Reset for next pass.
-      this.buffer = this._stringBuffer.slice(0)
+      this.buffer = this._stringBuffer.slice(0);
     }
@@ -623,7 +623,7 @@
     if (bit !== i) {
-      this._applyMask(bit)
+      this._applyMask(bit);
     }
 
     // Add in final mask/ECC level bytes.
-    mask = ErrorCorrection.FINAL_FORMAT[bit + (this._level - 1 << 3)]
+    mask = ErrorCorrection.FINAL_FORMAT[bit + (this._level - 1 << 3)];
 
@@ -633,8 +633,8 @@ // Low byte.
       if (mask & 1) {
-        this.buffer[this.width - 1 - i + (this.width * 8)] = 1
+        this.buffer[this.width - 1 - i + (this.width * 8)] = 1;
 
         if (i < 6) {
-          this.buffer[8 + (this.width * i)] = 1
+          this.buffer[8 + (this.width * i)] = 1;
         } else {
-          this.buffer[8 + (this.width * (i + 1))] = 1
+          this.buffer[8 + (this.width * (i + 1))] = 1;
         }
@@ -647,8 +647,8 @@ }
       if (mask & 1) {
-        this.buffer[8 + (this.width * (this.width - 7 + i))] = 1
+        this.buffer[8 + (this.width * (this.width - 7 + i))] = 1;
 
         if (i) {
-          this.buffer[6 - i + (this.width * 8)] = 1
+          this.buffer[6 - i + (this.width * 8)] = 1;
         } else {
-          this.buffer[7 + (this.width * 8)] = 1
+          this.buffer[7 + (this.width * 8)] = 1;
         }
@@ -660,13 +660,13 @@ }
   _interleaveBlocks() {
-    const maxLength = this._calculateMaxLength()
-    let i
-    let k = 0
+    const maxLength = this._calculateMaxLength();
+    let i;
+    let k = 0;
 
     for (i = 0; i < this._dataBlock; i++) {
       for (let j = 0; j < this._neccBlock1; j++) {
-        this._ecc[k++] = this._stringBuffer[i + (j * this._dataBlock)]
+        this._ecc[k++] = this._stringBuffer[i + (j * this._dataBlock)];
       }
 
       for (let j = 0; j < this._neccBlock2; j++) {
-        this._ecc[k++] = this._stringBuffer[(this._neccBlock1 * this._dataBlock) + i + (j * (this._dataBlock + 1))]
+        this._ecc[k++] = this._stringBuffer[(this._neccBlock1 * this._dataBlock) + i + (j * (this._dataBlock + 1))];
       }
@@ -676,3 +676,3 @@ }
     for (let j = 0; j < this._neccBlock2; j++) {
-      this._ecc[k++] = this._stringBuffer[(this._neccBlock1 * this._dataBlock) + i + (j * (this._dataBlock + 1))]
+      this._ecc[k++] = this._stringBuffer[(this._neccBlock1 * this._dataBlock) + i + (j * (this._dataBlock + 1))];
     }
@@ -682,37 +682,37 @@
       for (let j = 0; j < this._neccBlock1 + this._neccBlock2; j++) {
-        this._ecc[k++] = this._stringBuffer[maxLength + i + (j * this._eccBlock)]
+        this._ecc[k++] = this._stringBuffer[maxLength + i + (j * this._eccBlock)];
       }
     }
 
-    this._stringBuffer = this._ecc
+    this._stringBuffer = this._ecc;
   }
 
   _insertAlignments() {
-    const width = this.width
+    const width = this.width;
 
     if (this._version > 1) {
-      const i = Alignment.BLOCK[this._version]
-      let y = width - 7
+      const i = Alignment.BLOCK[this._version];
+      let y = width - 7;
 
       for (;;) {
-        let x = width - 7
+        let x = width - 7;
 
         while (x > i - 3) {
-          this._addAlignment(x, y)
+          this._addAlignment(x, y);
 
           if (x < i) {
-            break
+            break;
           }
 
-          x -= i
+          x -= i;
         }
 
         if (y <= i + 9) {
-          break
+          break;
         }
 
-        y -= i
+        y -= i;
 
-        this._addAlignment(6, y)
-        this._addAlignment(y, 6)
+        this._addAlignment(6, y);
+        this._addAlignment(y, 6);
       }
@@ -723,36 +723,36 @@ }
   _insertFinders() {
-    const width = this.width
+    const width = this.width;
 
     for (let i = 0; i < 3; i++) {
-      let j = 0
-      let y = 0
+      let j = 0;
+      let y = 0;
 
       if (i === 1) {
-        j = width - 7
+        j = width - 7;
       }
       if (i === 2) {
-        y = width - 7
+        y = width - 7;
       }
 
-      this.buffer[y + 3 + (width * (j + 3))] = 1
+      this.buffer[y + 3 + (width * (j + 3))] = 1;
 
       for (let x = 0; x < 6; x++) {
-        this.buffer[y + x + (width * j)] = 1
-        this.buffer[y + (width * (j + x + 1))] = 1
-        this.buffer[y + 6 + (width * (j + x))] = 1
-        this.buffer[y + x + 1 + (width * (j + 6))] = 1
+        this.buffer[y + x + (width * j)] = 1;
+        this.buffer[y + (width * (j + x + 1))] = 1;
+        this.buffer[y + 6 + (width * (j + x))] = 1;
+        this.buffer[y + x + 1 + (width * (j + 6))] = 1;
       }
 
       for (let x = 1; x < 5; x++) {
-        this._setMask(y + x, j + 1)
-        this._setMask(y + 1, j + x + 1)
-        this._setMask(y + 5, j + x)
-        this._setMask(y + x + 1, j + 5)
+        this._setMask(y + x, j + 1);
+        this._setMask(y + 1, j + x + 1);
+        this._setMask(y + 5, j + x);
+        this._setMask(y + x + 1, j + 5);
       }
 
       for (let x = 2; x < 4; x++) {
-        this.buffer[y + x + (width * (j + 2))] = 1
-        this.buffer[y + 2 + (width * (j + x + 1))] = 1
-        this.buffer[y + 4 + (width * (j + x))] = 1
-        this.buffer[y + x + 1 + (width * (j + 4))] = 1
+        this.buffer[y + x + (width * (j + 2))] = 1;
+        this.buffer[y + 2 + (width * (j + x + 1))] = 1;
+        this.buffer[y + 4 + (width * (j + x))] = 1;
+        this.buffer[y + x + 1 + (width * (j + 4))] = 1;
       }
@@ -763,14 +763,14 @@ }
   _insertTimingGap() {
-    const width = this.width
+    const width = this.width;
 
     for (let y = 0; y < 7; y++) {
-      this._setMask(7, y)
-      this._setMask(width - 8, y)
-      this._setMask(7, y + width - 7)
+      this._setMask(7, y);
+      this._setMask(width - 8, y);
+      this._setMask(7, y + width - 7);
     }
 
     for (let x = 0; x < 8; x++) {
-      this._setMask(x, 7)
-      this._setMask(x + width - 8, 7)
-      this._setMask(x, width - 8)
+      this._setMask(x, 7);
+      this._setMask(x + width - 8, 7);
+      this._setMask(x, width - 8);
     }
@@ -780,11 +780,11 @@ }
   _insertTimingRowAndColumn() {
-    const width = this.width
+    const width = this.width;
 
     for (let x = 0; x < width - 14; x++) {
       if (x & 1) {
-        this._setMask(8 + x, 6)
-        this._setMask(6, 8 + x)
+        this._setMask(8 + x, 6);
+        this._setMask(6, 8 + x);
       } else {
-        this.buffer[8 + x + (width * 6)] = 1
-        this.buffer[6 + (width * (8 + x))] = 1
+        this.buffer[8 + x + (width * 6)] = 1;
+        this.buffer[6 + (width * (8 + x))] = 1;
       }
@@ -795,7 +795,7 @@ }
   _insertVersion() {
-    const width = this.width
+    const width = this.width;
 
     if (this._version > 6) {
-      const i = Version.BLOCK[this._version - 7]
-      let j = 17
+      const i = Version.BLOCK[this._version - 7];
+      let j = 17;
 
@@ -805,7 +805,7 @@ for (let x = 0; x < 6; x++) {
           if (1 & (j > 11 ? this._version >> j - 12 : i >> j)) {
-            this.buffer[5 - x + (width * (2 - y + width - 11))] = 1
-            this.buffer[2 - y + width - 11 + (width * (5 - x))] = 1
+            this.buffer[5 - x + (width * (2 - y + width - 11))] = 1;
+            this.buffer[2 - y + width - 11 + (width * (5 - x))] = 1;
           } else {
-            this._setMask(5 - x, 2 - y + width - 11)
-            this._setMask(2 - y + width - 11, 5 - x)
+            this._setMask(5 - x, 2 - y + width - 11);
+            this._setMask(2 - y + width - 11, 5 - x);
           }
@@ -818,22 +818,22 @@ }
   _isMasked(x, y) {
-    const bit = Frame._getMaskBit(x, y)
+    const bit = Frame._getMaskBit(x, y);
 
-    return this._mask[bit] === 1
+    return this._mask[bit] === 1;
   }
 
   _pack() {
-    let x = this.width - 1
-    let y = this.width - 1
-    let k = 1
-    let v = 1
+    let x = this.width - 1;
+    let y = this.width - 1;
+    let k = 1;
+    let v = 1;
 
     // Interleaved data and ECC codes.
-    const length = ((this._dataBlock + this._eccBlock) * (this._neccBlock1 + this._neccBlock2)) + this._neccBlock2
+    const length = ((this._dataBlock + this._eccBlock) * (this._neccBlock1 + this._neccBlock2)) + this._neccBlock2;
 
     for (let i = 0; i < length; i++) {
-      let bit = this._stringBuffer[i]
+      let bit = this._stringBuffer[i];
 
       for (let j = 0; j < 8; j++, bit <<= 1) {
         if (0x80 & bit) {
-          this.buffer[x + (this.width * y)] = 1
+          this.buffer[x + (this.width * y)] = 1;
         }
@@ -844,27 +844,27 @@
           if (v) {
-            x--
+            x--;
           } else {
-            x++
+            x++;
 
             if (k) {
               if (y !== 0) {
-                y--
+                y--;
               } else {
-                x -= 2
-                k = !k
+                x -= 2;
+                k = !k;
 
                 if (x === 6) {
-                  x--
-                  y = 9
+                  x--;
+                  y = 9;
                 }
               }
             } else if (y !== this.width - 1) {
-              y++
+              y++;
             } else {
-              x -= 2
-              k = !k
+              x -= 2;
+              k = !k;
 
               if (x === 6) {
-                x--
-                y -= 8
+                x--;
+                y -= 8;
               }
@@ -874,4 +874,4 @@ }
 
-          v = !v
-        } while (this._isMasked(x, y))
+          v = !v;
+        } while (this._isMasked(x, y));
       }
@@ -882,15 +882,15 @@ }
   _reverseMask() {
-    const width = this.width
+    const width = this.width;
 
     for (let x = 0; x < 9; x++) {
-      this._setMask(x, 8)
+      this._setMask(x, 8);
     }
 
     for (let x = 0; x < 8; x++) {
-      this._setMask(x + width - 8, 8)
-      this._setMask(8, x)
+      this._setMask(x + width - 8, 8);
+      this._setMask(8, x);
     }
 
     for (let y = 0; y < 7; y++) {
-      this._setMask(8, y + width - 7)
+      this._setMask(8, y + width - 7);
     }
@@ -900,9 +900,9 @@ }
   _setMask(x, y) {
-    const bit = Frame._getMaskBit(x, y)
+    const bit = Frame._getMaskBit(x, y);
 
-    this._mask[bit] = 1
+    this._mask[bit] = 1;
   }
 
   _syncMask() {
-    const width = this.width
+    const width = this.width;
 
@@ -912,3 +912,3 @@ for (let y = 0; y < width; y++) {
         if (this.buffer[x + (width * y)]) {
-          this._setMask(x, y)
+          this._setMask(x, y);
         }
@@ -921,3 +921,3 @@ }
 
-export default Frame
+export default Frame;
 
@@ -924,0 +924,0 @@ /**

src/Galois.js

 /*
  * QRious
- * Copyright (C) 2016 Alasdair Mercer
+ * Copyright (C) 2017 Alasdair Mercer
  * Copyright (C) 2010 Tom Zerucha
@@ -52,3 +52,3 @@ *
       0x2c, 0x58, 0xb0, 0x7d, 0xfa, 0xe9, 0xcf, 0x83, 0x1b, 0x36, 0x6c, 0xd8, 0xad, 0x47, 0x8e, 0x00
-    ]
+    ];
   }
@@ -81,3 +81,3 @@
       0x4f, 0xae, 0xd5, 0xe9, 0xe6, 0xe7, 0xad, 0xe8, 0x74, 0xd6, 0xf4, 0xea, 0xa8, 0x50, 0x58, 0xaf
-    ]
+    ];
   }
@@ -87,2 +87,2 @@
 
-export default Galois
+export default Galois;

src/QRious.js

 /*
  * QRious
- * Copyright (C) 2016 Alasdair Mercer
+ * Copyright (C) 2017 Alasdair Mercer
  * Copyright (C) 2010 Tom Zerucha
@@ -20,8 +20,24 @@ *
 
-import CanvasRenderer from './renderer/CanvasRenderer'
-import Frame from './Frame'
-import ImageRenderer from './renderer/ImageRenderer'
-import ServiceManager from './service/ServiceManager'
-import Utilities from './util/Utilities'
+import CanvasRenderer from './renderer/CanvasRenderer';
+import Frame from './Frame';
+import ImageRenderer from './renderer/ImageRenderer';
+import Option from './option/Option';
+import OptionManager from './option/OptionManager';
+import ServiceManager from './service/ServiceManager';
+import Utilities from './util/Utilities';
 
+const optionManager = new OptionManager([
+  new Option('background', 'white'),
+  new Option('backgroundAlpha', 1, Utilities.abs),
+  new Option('element'),
+  new Option('foreground', 'black'),
+  new Option('foregroundAlpha', 1, Utilities.abs),
+  new Option('level', 'L', Utilities.toUpperCase),
+  new Option('mime', 'image/png'),
+  new Option('padding', null, Utilities.abs),
+  new Option('size', 100, Utilities.abs),
+  new Option('value', '')
+]);
+const serviceManager = new ServiceManager();
+
 /**
@@ -38,2 +54,3 @@ * Enables configuration of a QR code generator which uses HTML5 <code>canvas</code> for rendering.
    * @return {QRious~Options} The default options.
+   * @deprecated Since 2.3.0
    * @public
@@ -43,13 +60,9 @@ * @static
   static get DEFAULTS() {
-    return {
-      background: 'white',
-      backgroundAlpha: 1,
-      foreground: 'black',
-      foregroundAlpha: 1,
-      level: 'L',
-      mime: 'image/png',
-      padding: null,
-      size: 100,
-      value: ''
-    }
+    const result = {};
+
+    optionManager.options.forEach((option) => {
+      result[option.name] = option.defaultValue;
+    });
+
+    return result;
   }
@@ -65,3 +78,3 @@
   static get VERSION() {
-    return '2.2.0'
+    return '2.3.0';
   }
@@ -79,16 +92,5 @@
   static use(service) {
-    QRious._serviceManager.setService(service.getName(), service)
+    serviceManager.setService(service.getName(), service);
   }
 
-  static _parseOptions(options) {
-    options = Object.assign({}, QRious.DEFAULTS, options)
-    options.backgroundAlpha = Utilities.abs(options.backgroundAlpha)
-    options.foregroundAlpha = Utilities.abs(options.foregroundAlpha)
-    options.level = Utilities.toUpperCase(options.level)
-    options.padding = Utilities.abs(options.padding)
-    options.size = Utilities.abs(options.size)
-
-    return options
-  }
-
   /**
@@ -98,36 +100,49 @@ * Creates a new instance of {@link QRious} based on the <code>options</code> provided.
    * @param {QRious~Options} [options] - the options to be used
+   * @throws {Error} If any <code>options</code> are invalid.
    * @public
    */
   constructor(options) {
-    options = QRious._parseOptions(options)
+    optionManager.applyDefaults(this);
+    optionManager.setAll(options, this);
 
-    Utilities.privatize(this, options)
+    const element = optionManager.get('element', this);
+    const elementService = serviceManager.getService('element');
+    const canvas = element && elementService.isCanvas(element) ? element : elementService.createCanvas();
+    const image = element && elementService.isImage(element) ? element : elementService.createImage();
 
-    const element = this._element
-    const elementService = QRious._serviceManager.getService('element')
+    this._canvasRenderer = new CanvasRenderer(this, canvas, true);
+    this._imageRenderer = new ImageRenderer(this, image, image === element);
 
-    /**
-     * The <code>canvas</code> being used to render the QR code for this {@link QRious}.
-     *
-     * @public
-     * @type {*}
-     */
-    this.canvas = element && elementService.isCanvas(element) ? element : elementService.createCanvas()
-    this.canvas.qrious = this
+    this.update();
+  }
 
-    /**
-     * The <code>img</code> to contain the rendered QR code for this {@link QRious}.
-     *
-     * @public
-     * @type {*}
-     */
-    this.image = element && elementService.isImage(element) ? element : elementService.createImage()
-    this.image.qrious = this
+  /**
+   * Returns all of the options configured for this {@link QRious}.
+   *
+   * Any changes made to the returned object will not be reflected in the options themselves or their corresponding
+   * underlying fields.
+   *
+   * @return {Object.<string, *>} A copy of the applied options.
+   * @public
+   */
+  get() {
+    return optionManager.getAll(this);
+  }
 
-    this._renderers = [
-      new CanvasRenderer(this),
-      new ImageRenderer(this)
-    ]
-
-    this.update()
+  /**
+   * Sets all of the specified <code>options</code> and automatically updates this {@link QRious} if any of the
+   * underlying fields are changed as a result.
+   *
+   * This is the preferred method for updating multiple options at one time to avoid unnecessary updates between
+   * changes.
+   *
+   * @param {QRious~Options} options - the options to be set
+   * @return {void}
+   * @throws {Error} If any <code>options</code> are invalid.
+   * @public
+   */
+  set(options) {
+    if (optionManager.setAll(options, this)) {
+      this.update();
+    }
   }
@@ -143,3 +158,3 @@
   toDataURL(mime) {
-    return this.canvas.toDataURL(mime || this.mime)
+    return this.canvas.toDataURL(mime || this.mime);
   }
@@ -157,5 +172,6 @@
       value: this.value
-    })
+    });
 
-    this._renderers.forEach((renderer) => renderer.render(frame))
+    this._canvasRenderer.render(frame);
+    this._imageRenderer.render(frame);
   }
@@ -170,7 +186,8 @@
   get background() {
-    return this._background
+    return optionManager.get('background', this);
   }
 
   /**
-   * Sets the background color for the QR code to <code>background</code>.
+   * Sets the background color for the QR code to <code>background</code> and automatically updates this {@link QRious}
+   * if the underlying field is changed as a result.
    *
@@ -181,6 +198,4 @@ * @param {string} [background="white"] - the background color to be set
   set background(background) {
-    const changed = Utilities.setter(this, '_background', background, QRious.DEFAULTS.background)
-
-    if (changed) {
-      this.update()
+    if (optionManager.set('background', background, this)) {
+      this.update();
     }
@@ -196,7 +211,8 @@ }
   get backgroundAlpha() {
-    return this._backgroundAlpha
+    return optionManager.get('backgroundAlpha', this);
   }
 
   /**
-   * Sets the background alpha for the QR code to <code>backgroundAlpha</code>.
+   * Sets the background alpha for the QR code to <code>backgroundAlpha</code> and automatically updates this
+   * {@link QRious} if the underlying field is changed as a result.
    *
@@ -207,6 +223,4 @@ * @param {number} [backgroundAlpha=1] - the background alpha to be set
   set backgroundAlpha(backgroundAlpha) {
-    const changed = Utilities.setter(this, '_backgroundAlpha', backgroundAlpha, QRious.DEFAULTS.backgroundAlpha)
-
-    if (changed) {
-      this.update()
+    if (optionManager.set('backgroundAlpha', backgroundAlpha, this)) {
+      this.update();
     }
@@ -216,2 +230,12 @@ }
   /**
+   * Returns the <code>canvas</code> element being used to render the QR code for this {@link QRious}.
+   *
+   * @return {*} The <code>canvas</code> element.
+   * @public
+   */
+  get canvas() {
+    return this._canvasRenderer.getElement();
+  }
+
+  /**
    * Returns the foreground color for the QR code.
@@ -223,7 +247,8 @@ *
   get foreground() {
-    return this._foreground
+    return optionManager.get('foreground', this);
   }
 
   /**
-   * Sets the foreground color for the QR code to <code>foreground</code>.
+   * Sets the foreground color for the QR code to <code>foreground</code> and automatically updates this {@link QRious}
+   * if the underlying field is changed as a result.
    *
@@ -234,6 +259,4 @@ * @param {string} [foreground="black"] - the foreground color to be set
   set foreground(foreground) {
-    const changed = Utilities.setter(this, '_foreground', foreground, QRious.DEFAULTS.foreground)
-
-    if (changed) {
-      this.update()
+    if (optionManager.set('foreground', foreground, this)) {
+      this.update();
     }
@@ -249,7 +272,8 @@ }
   get foregroundAlpha() {
-    return this._foregroundAlpha
+    return optionManager.get('foregroundAlpha', this);
   }
 
   /**
-   * Sets the foreground alpha for the QR code to <code>foregroundAlpha</code>.
+   * Sets the foreground alpha for the QR code to <code>foregroundAlpha</code> and automatically updates this
+   * {@link QRious} if the underlying field is changed as a result.
    *
@@ -260,6 +284,4 @@ * @param {number} [foregroundAlpha=1] - the foreground alpha to be set
   set foregroundAlpha(foregroundAlpha) {
-    const changed = Utilities.setter(this, '_foregroundAlpha', foregroundAlpha, QRious.DEFAULTS.foregroundAlpha)
-
-    if (changed) {
-      this.update()
+    if (optionManager.set('foregroundAlpha', foregroundAlpha, this)) {
+      this.update();
     }
@@ -269,2 +291,12 @@ }
   /**
+   * Returns the <code>img</code> element being used to render the QR code for this {@link QRious}.
+   *
+   * @return {*} The <code>img</code> element.
+   * @public
+   */
+  get image() {
+    return this._imageRenderer.getElement();
+  }
+
+  /**
    * Returns the error correction level for the QR code.
@@ -276,7 +308,8 @@ *
   get level() {
-    return this._level
+    return optionManager.get('level', this);
   }
 
   /**
-   * Sets the error correction level for the QR code to <code>level</code>.
+   * Sets the error correction level for the QR code to <code>level</code> and automatically updates this {@link QRious}
+   * if the underlying field is changed as a result.
    *
@@ -289,6 +322,4 @@ * <code>level</code> will be transformed to upper case to aid mapping to known ECC level blocks.
   set level(level) {
-    const changed = Utilities.setter(this, '_level', level, QRious.DEFAULTS.level, Utilities.toUpperCase)
-
-    if (changed) {
-      this.update()
+    if (optionManager.set('level', level, this)) {
+      this.update();
     }
@@ -304,7 +335,8 @@ }
   get mime() {
-    return this._mime
+    return optionManager.get('mime', this);
   }
 
   /**
-   * Sets the MIME type for the image rendered for the QR code to <code>mime</code>.
+   * Sets the MIME type for the image rendered for the QR code to <code>mime</code> and automatically updates this
+   * {@link QRious} if the underlying field is changed as a result.
    *
@@ -315,6 +347,4 @@ * @param {string} [mime="image/png"] - the image MIME type to be set
   set mime(mime) {
-    const changed = Utilities.setter(this, '_mime', mime, QRious.DEFAULTS.mime)
-
-    if (changed) {
-      this.update()
+    if (optionManager.set('mime', mime, this)) {
+      this.update();
     }
@@ -330,7 +360,8 @@ }
   get padding() {
-    return this._padding
+    return optionManager.get('padding', this);
   }
 
   /**
-   * Sets the padding for the QR code to <code>padding</code>.
+   * Sets the padding for the QR code to <code>padding</code> and automatically updates this {@link QRious} if the
+   * underlying field is changed as a result.
    *
@@ -344,6 +375,4 @@ * <code>padding</code> will be transformed to ensure that it is always an absolute positive numbers (e.g.
   set padding(padding) {
-    const changed = Utilities.setter(this, '_padding', padding, QRious.DEFAULTS.padding, Utilities.abs)
-
-    if (changed) {
-      this.update()
+    if (optionManager.set('padding', padding, this)) {
+      this.update();
     }
@@ -359,7 +388,8 @@ }
   get size() {
-    return this._size
+    return optionManager.get('size', this);
   }
 
   /**
-   * Sets the size of the QR code to <code>size</code>.
+   * Sets the size of the QR code to <code>size</code> and automatically updates this {@link QRious} if the underlying
+   * field is changed as a result.
    *
@@ -373,6 +403,4 @@ * <code>size</code> will be transformed to ensure that it is always an absolute positive numbers (e.g.
   set size(size) {
-    const changed = Utilities.setter(this, '_size', size, QRious.DEFAULTS.size, Utilities.abs)
-
-    if (changed) {
-      this.update()
+    if (optionManager.set('size', size, this)) {
+      this.update();
     }
@@ -388,7 +416,8 @@ }
   get value() {
-    return this._value
+    return optionManager.get('value', this);
   }
 
   /**
-   * Sets the value of the QR code to <code>value</code>.
+   * Sets the value of the QR code to <code>value</code> and automatically updates this {@link QRious} if the underlying
+   * field is changed as a result.
    *
@@ -399,6 +428,4 @@ * @param {string} [value=""] - the value to be set
   set value(value) {
-    const changed = Utilities.setter(this, '_value', value, QRious.DEFAULTS.value)
-
-    if (changed) {
-      this.update()
+    if (optionManager.set('value', value, this)) {
+      this.update();
     }
@@ -409,6 +436,4 @@ }
 
-QRious._serviceManager = new ServiceManager()
+export default QRious;
 
-export default QRious
-
 /**
@@ -415,0 +440,0 @@ * The options used by {@link QRious}.

src/renderer/CanvasRenderer.js

 /*
  * QRious
- * Copyright (C) 2016 Alasdair Mercer
+ * Copyright (C) 2017 Alasdair Mercer
  * Copyright (C) 2010 Tom Zerucha
@@ -20,3 +20,3 @@ *
 
-import Renderer from './Renderer'
+import Renderer from './Renderer';
 
@@ -35,9 +35,9 @@ /**
   draw(frame) {
-    const qrious = this.qrious
-    const moduleSize = this.getModuleSize(frame)
-    const offset = this.getOffset(frame)
-    const context = qrious.canvas.getContext('2d')
+    const qrious = this.qrious;
+    const moduleSize = this.getModuleSize(frame);
+    const offset = this.getOffset(frame);
+    const context = this.element.getContext('2d');
 
-    context.fillStyle = qrious.foreground
-    context.globalAlpha = qrious.foregroundAlpha
+    context.fillStyle = qrious.foreground;
+    context.globalAlpha = qrious.foregroundAlpha;
 
@@ -47,3 +47,3 @@ for (let i = 0; i < frame.width; i++) {
         if (frame.buffer[(j * frame.width) + i]) {
-          context.fillRect((moduleSize * i) + offset, (moduleSize * j) + offset, moduleSize, moduleSize)
+          context.fillRect((moduleSize * i) + offset, (moduleSize * j) + offset, moduleSize, moduleSize);
         }
@@ -58,10 +58,11 @@ }
   reset() {
-    const qrious = this.qrious
-    const context = qrious.canvas.getContext('2d')
+    const qrious = this.qrious;
+    const context = this.element.getContext('2d');
+    const size = qrious.size;
 
-    context.lineWidth = 1
-    context.clearRect(0, 0, qrious.size, qrious.size)
-    context.fillStyle = qrious.background
-    context.globalAlpha = qrious.backgroundAlpha
-    context.fillRect(0, 0, qrious.size, qrious.size)
+    context.lineWidth = 1;
+    context.clearRect(0, 0, size, size);
+    context.fillStyle = qrious.background;
+    context.globalAlpha = qrious.backgroundAlpha;
+    context.fillRect(0, 0, size, size);
   }
@@ -73,7 +74,3 @@
   resize() {
-    const qrious = this.qrious
-    const canvas = qrious.canvas
-
-    canvas.width = qrious.size
-    canvas.height = qrious.size
+    this.element.width = this.element.height = this.qrious.size;
   }
@@ -83,2 +80,2 @@
 
-export default CanvasRenderer
+export default CanvasRenderer;

src/renderer/ImageRenderer.js

 /*
  * QRious
- * Copyright (C) 2016 Alasdair Mercer
+ * Copyright (C) 2017 Alasdair Mercer
  * Copyright (C) 2010 Tom Zerucha
@@ -20,3 +20,3 @@ *
 
-import Renderer from './Renderer'
+import Renderer from './Renderer';
 
@@ -38,5 +38,3 @@ /**
   draw() {
-    const qrious = this.qrious
-
-    qrious.image.src = qrious.toDataURL()
+    this.element.src = this.qrious.toDataURL();
   }
@@ -48,5 +46,3 @@
   reset() {
-    const qrious = this.qrious
-
-    qrious.image.src = ''
+    this.element.src = '';
   }
@@ -58,7 +54,3 @@
   resize() {
-    const qrious = this.qrious
-    const image = qrious.image
-
-    image.width = qrious.size
-    image.height = qrious.size
+    this.element.width = this.element.height = this.qrious.size;
   }
@@ -68,2 +60,2 @@
 
-export default ImageRenderer
+export default ImageRenderer;

src/renderer/Renderer.js

 /*
  * QRious
- * Copyright (C) 2016 Alasdair Mercer
+ * Copyright (C) 2017 Alasdair Mercer
  * Copyright (C) 2010 Tom Zerucha
@@ -20,3 +20,3 @@ *
 
-import Utilities from '../util/Utilities'
+import Utilities from '../util/Utilities';
 
@@ -26,4 +26,7 @@ /**
  *
- * A renderer may be dependant on the rendering of another element, so ordering of their execution is important.
+ * A renderer may be dependant on the rendering of another element, so the ordering of their execution is important.
  *
+ * The rendering of a element can be deferred by disabling the renderer initially, however, any attempt get the element
+ * from the renderer will result in it being immediately enabled and the element being rendered.
+ *
  * @public
@@ -34,8 +37,10 @@ */
   /**
-   * Creates a new instance of {@link Renderer} for the <code>qrious</code> instance provided.
+   * Creates a new instance of {@link Renderer} for the <code>qrious</code> instance and <code>element</code> provided.
    *
    * @param {QRious} qrious - the {@link QRious} instance to be used
+   * @param {*} element - the element onto which the QR code is to be rendered
+   * @param {boolean} [enabled] - <code>true</code> this {@link Renderer} is enabled; otherwise <code>false</code>.
    * @public
    */
-  constructor(qrious) {
+  constructor(qrious, element, enabled) {
     /**
@@ -47,3 +52,20 @@ * The {@link QRious} instance.
      */
-    this.qrious = qrious
+    this.qrious = qrious;
+
+    /**
+     * The element onto which this {@link Renderer} is rendering the QR code.
+     *
+     * @protected
+     * @type {*}
+     */
+    this.element = element;
+    this.element.qrious = qrious;
+
+    /**
+     * Whether this {@link Renderer} is enabled.
+     *
+     * @protected
+     * @type {boolean}
+     */
+    this.enabled = Boolean(enabled);
   }
@@ -61,6 +83,24 @@
   draw(frame) {
-    Utilities.throwUnimplemented('Renderer', 'draw')
+    Utilities.throwUnimplemented('Renderer', 'draw');
   }
 
   /**
+   * Returns the element onto which this {@link Renderer} is rendering the QR code.
+   *
+   * If this method is called while this {@link Renderer} is disabled, it will be immediately enabled and rendered
+   * before the element is returned.
+   *
+   * @return {*} The element.
+   * @public
+   */
+  getElement() {
+    if (!this.enabled) {
+      this.enabled = true;
+      this.render();
+    }
+
+    return this.element;
+  }
+
+  /**
    * Calculates the size (in pixel units) to represent an individual module within the QR code based on the
@@ -80,6 +120,7 @@ * <code>frame</code> provided.
   getModuleSize(frame) {
-    const padding = this.qrious.padding || 0
-    const pixels = Math.floor((this.qrious.size - (padding * 2)) / frame.width)
+    const qrious = this.qrious;
+    const padding = qrious.padding || 0;
+    const pixels = Math.floor((qrious.size - (padding * 2)) / frame.width);
 
-    return Math.max(1, pixels)
+    return Math.max(1, pixels);
   }
@@ -100,10 +141,13 @@
   getOffset(frame) {
-    if (this.qrious.padding != null) {
-      return this.qrious.padding
+    const qrious = this.qrious;
+    const padding = qrious.padding;
+
+    if (padding != null) {
+      return padding;
     }
 
-    const moduleSize = this.getModuleSize(frame)
-    const offset = Math.floor((this.qrious.size - (moduleSize * frame.width)) / 2)
+    const moduleSize = this.getModuleSize(frame);
+    const offset = Math.floor((qrious.size - (moduleSize * frame.width)) / 2);
 
-    return Math.max(0, offset)
+    return Math.max(0, offset);
   }
@@ -119,5 +163,7 @@
   render(frame) {
-    this.resize()
-    this.reset()
-    this.draw(frame)
+    if (this.enabled) {
+      this.resize();
+      this.reset();
+      this.draw(frame);
+    }
   }
@@ -134,3 +180,3 @@
   reset() {
-    Utilities.throwUnimplemented('Renderer', 'reset')
+    Utilities.throwUnimplemented('Renderer', 'reset');
   }
@@ -147,3 +193,3 @@
   resize() {
-    Utilities.throwUnimplemented('Renderer', 'resize')
+    Utilities.throwUnimplemented('Renderer', 'resize');
   }
@@ -153,2 +199,2 @@
 
-export default Renderer
+export default Renderer;

src/runtime/browser.js

 /*
  * QRious
- * Copyright (C) 2016 Alasdair Mercer
+ * Copyright (C) 2017 Alasdair Mercer
  * Copyright (C) 2010 Tom Zerucha
@@ -20,7 +20,7 @@ *
 
-import BrowserElementService from '../service/element/BrowserElementService'
-import QRious from '../QRious'
+import BrowserElementService from '../service/element/BrowserElementService';
+import QRious from '../QRious';
 
-QRious.use(new BrowserElementService())
+QRious.use(new BrowserElementService());
 
-export default QRious
+export default QRious;

src/runtime/node.js

 /*
  * QRious
- * Copyright (C) 2016 Alasdair Mercer
+ * Copyright (C) 2017 Alasdair Mercer
  * Copyright (C) 2010 Tom Zerucha
@@ -20,7 +20,7 @@ *
 
-import NodeElementService from '../service/element/NodeElementService'
-import QRious from '../QRious'
+import NodeElementService from '../service/element/NodeElementService';
+import QRious from '../QRious';
 
-QRious.use(new NodeElementService())
+QRious.use(new NodeElementService());
 
-export default QRious
+export default QRious;

src/service/element/BrowserElementService.js

 /*
  * QRious
- * Copyright (C) 2016 Alasdair Mercer
+ * Copyright (C) 2017 Alasdair Mercer
  * Copyright (C) 2010 Tom Zerucha
@@ -20,3 +20,3 @@ *
 
-import ElementService from './ElementService'
+import ElementService from './ElementService';
 
@@ -35,3 +35,3 @@ /**
   createCanvas() {
-    return document.createElement('canvas')
+    return document.createElement('canvas');
   }
@@ -43,3 +43,3 @@
   createImage() {
-    return document.createElement('img')
+    return document.createElement('img');
   }
@@ -51,3 +51,3 @@
   isCanvas(element) {
-    return element instanceof HTMLCanvasElement
+    return element instanceof HTMLCanvasElement;
   }
@@ -59,3 +59,3 @@
   isImage(element) {
-    return element instanceof HTMLImageElement
+    return element instanceof HTMLImageElement;
   }
@@ -65,2 +65,2 @@
 
-export default BrowserElementService
+export default BrowserElementService;

src/service/element/ElementService.js

 /*
  * QRious
- * Copyright (C) 2016 Alasdair Mercer
+ * Copyright (C) 2017 Alasdair Mercer
  * Copyright (C) 2010 Tom Zerucha
@@ -20,4 +20,4 @@ *
 
-import Service from '../Service'
-import Utilities from '../../util/Utilities'
+import Service from '../Service';
+import Utilities from '../../util/Utilities';
 
@@ -39,3 +39,3 @@ /**
   createCanvas() {
-    Utilities.throwUnimplemented('ElementService', 'createCanvas')
+    Utilities.throwUnimplemented('ElementService', 'createCanvas');
   }
@@ -50,3 +50,3 @@
   createImage() {
-    Utilities.throwUnimplemented('ElementService', 'createImage')
+    Utilities.throwUnimplemented('ElementService', 'createImage');
   }
@@ -58,3 +58,3 @@
   getName() {
-    return 'element'
+    return 'element';
   }
@@ -70,3 +70,3 @@
   isCanvas(element) {
-    Utilities.throwUnimplemented('ElementService', 'isCanvas')
+    Utilities.throwUnimplemented('ElementService', 'isCanvas');
   }
@@ -82,3 +82,3 @@
   isImage(element) {
-    Utilities.throwUnimplemented('ElementService', 'isImage')
+    Utilities.throwUnimplemented('ElementService', 'isImage');
   }
@@ -88,2 +88,2 @@
 
-export default ElementService
+export default ElementService;

src/service/element/NodeElementService.js

 /*
  * QRious
- * Copyright (C) 2016 Alasdair Mercer
+ * Copyright (C) 2017 Alasdair Mercer
  * Copyright (C) 2010 Tom Zerucha
@@ -20,5 +20,5 @@ *
 
-import Canvas, { Image } from 'canvas'
+import Canvas, { Image } from 'canvas';
 
-import ElementService from './ElementService'
+import ElementService from './ElementService';
 
@@ -38,3 +38,3 @@ /**
   static isSupported() {
-    return Canvas != null
+    return Canvas != null;
   }
@@ -46,3 +46,3 @@
   createCanvas() {
-    return new Canvas()
+    return new Canvas();
   }
@@ -54,3 +54,3 @@
   createImage() {
-    return new Image()
+    return new Image();
   }
@@ -62,3 +62,3 @@
   isCanvas(element) {
-    return element instanceof Canvas
+    return element instanceof Canvas;
   }
@@ -70,3 +70,3 @@
   isImage(element) {
-    return element instanceof Image
+    return element instanceof Image;
   }
@@ -76,2 +76,2 @@
 
-export default NodeElementService
+export default NodeElementService;

src/service/Service.js

 /*
  * QRious
- * Copyright (C) 2016 Alasdair Mercer
+ * Copyright (C) 2017 Alasdair Mercer
  * Copyright (C) 2010 Tom Zerucha
@@ -20,3 +20,3 @@ *
 
-import Utilities from '../util/Utilities'
+import Utilities from '../util/Utilities';
 
@@ -37,3 +37,3 @@ /**
   getName() {
-    Utilities.throwUnimplemented('Service', 'getName')
+    Utilities.throwUnimplemented('Service', 'getName');
   }
@@ -43,2 +43,2 @@
 
-export default Service
+export default Service;

src/service/ServiceManager.js

 /*
  * QRious
- * Copyright (C) 2016 Alasdair Mercer
+ * Copyright (C) 2017 Alasdair Mercer
  * Copyright (C) 2010 Tom Zerucha
@@ -33,3 +33,3 @@ *
   constructor() {
-    this._services = {}
+    this._services = {};
   }
@@ -46,8 +46,8 @@
   getService(name) {
-    const service = this._services[name]
+    const service = this._services[name];
     if (!service) {
-      throw new Error(`Service is not being managed with name: ${name}`)
+      throw new Error(`Service is not being managed with name: ${name}`);
     }
 
-    return service
+    return service;
   }
@@ -67,7 +67,7 @@
     if (this._services[name]) {
-      throw new Error(`Service is already managed with name: ${name}`)
+      throw new Error(`Service is already managed with name: ${name}`);
     }
 
     if (service) {
-      this._services[name] = service
+      this._services[name] = service;
     }
@@ -78,2 +78,2 @@ }
 
-export default ServiceManager
+export default ServiceManager;

src/util/Utilities.js

 /*
  * QRious
- * Copyright (C) 2016 Alasdair Mercer
+ * Copyright (C) 2017 Alasdair Mercer
  * Copyright (C) 2010 Tom Zerucha
@@ -40,56 +40,20 @@ *
   static abs(value) {
-    return value != null ? Math.abs(value) : null
+    return value != null ? Math.abs(value) : null;
   }
 
   /**
-   * Copies all properties from the <code>source</code> object to the <code>target</code> object, however, all property
-   * names on the <code>target</code> will be prefixed with an underscore, used to indicate that they are private.
+   * Returns whether the specified <code>object</code> has a property with the specified <code>name</code> as an own
+   * (not inherited) property.
    *
-   * @param {Object} target - the object to which the private fields are to be copied
-   * @param {Object} source - the object from which the fields are to be copied
-   * @return {Object} A reference to the <code>target</code> object.
+   * @param {Object} object - the object on which the property is to be checked
+   * @param {string} name - the name of the property to be checked
+   * @return {boolean} <code>true</code> if <code>object</code> has an own property with <code>name</code>.
    * @public
    * @static
    */
-  static privatize(target, source) {
-    for (const key in source) {
-      if (Object.prototype.hasOwnProperty.call(source, key)) {
-        target[`_${key}`] = source[key]
-      }
-    }
-
-    return target
+  static hasOwn(object, name) {
+    return Object.prototype.hasOwnProperty.call(object, name);
   }
 
   /**
-   * Sets the specified <code>value</code> on a given field on the <code>object</code> provided.
-   *
-   * If <code>value</code> is <code>null</code>, the specified default value will be used instead.
-   *
-   * An optional <code>transformer</code> can be specified which will be used to transform the value (or default value)
-   * before it is assigned to the field.
-   *
-   * @param {Object} object - the object whose field is to be set with <code>value</code>
-   * @param {string} fieldName - the field to be set with <code>value</code>
-   * @param {*} value - the value to be set on the named field
-   * @param {*} [defaultValue] - the value to be used if <code>value</code> is <code>null</code>
-   * @param {Function} [transformer] - a function used to transform the value before it is assigned to the named field
-   * @return {boolean} <code>true</code> if the value of the field has changed as a result of the assignment; otherwise
-   * <code>false</code>.
-   * @public
-   * @static
-   */
-  static setter(object, fieldName, value, defaultValue, transformer) {
-    const oldValue = object[fieldName]
-    let newValue = value != null ? value : defaultValue
-    if (typeof transformer === 'function') {
-      newValue = transformer(newValue)
-    }
-
-    object[fieldName] = newValue
-
-    return newValue !== oldValue
-  }
-
-  /**
    * Throws an error indicating that the a given method on a specific class has not been implemented.
@@ -105,3 +69,3 @@ *
   static throwUnimplemented(className, methodName) {
-    throw new Error(`"${methodName}" method must be implemented on the ${className} class`)
+    throw new Error(`"${methodName}" method must be implemented on the ${className} class`);
   }
@@ -118,3 +82,3 @@
   static toUpperCase(string) {
-    return string != null && string.toUpperCase()
+    return string != null ? string.toUpperCase() : null;
   }
@@ -124,2 +88,2 @@
 
-export default Utilities
+export default Utilities;

src/Version.js

 /*
  * QRious
- * Copyright (C) 2016 Alasdair Mercer
+ * Copyright (C) 2017 Alasdair Mercer
  * Copyright (C) 2010 Tom Zerucha
@@ -39,3 +39,3 @@ *
       0x6f0, 0x8ba, 0x79f, 0xb0b, 0x42e, 0xa64, 0x541, 0xc69
-    ]
+    ];
   }
@@ -45,2 +45,2 @@
 
-export default Version
+export default Version;

No alert changes

Improved metrics

Total package byte prevSize

996291

increased by7.37%

Number of package files

29

increased by3.57%

Lines of code

9342

increased by8.98%

Number of lines in readme file

248

increased by8.3%

No dependency changes