diff --git a/bower.json b/bower.json
index 81acde661..21702ef82 100644
--- a/bower.json
+++ b/bower.json
@@ -27,7 +27,6 @@
     "marked": "1.1.0",
     "rangy": "rangy-release#~1.3.0",
     "json.sortify": "~2.1.0",
-    "secure-fabric.js": "secure-v1.7.9",
     "hyperjson": "~1.4.0",
     "chainpad-crypto": "^0.2.0",
     "chainpad-listmap": "^1.0.0",
diff --git a/www/lib/changelog.md b/www/lib/changelog.md
index 486ca2f40..6a9f30320 100644
--- a/www/lib/changelog.md
+++ b/www/lib/changelog.md
@@ -9,3 +9,5 @@ This file is intended to be used as a log of what third-party source we have ven
 * [jquery.ui 1.12.1](https://jqueryui.com/) for its 'autocomplete' extension which is used for our tag picker
 * [pdfjs](https://mozilla.github.io/pdf.js/) with some minor modifications to prevent CSP errors
 * [mermaidjs 8.4.8](https://mermaid-js.github.io/mermaid/#/) extends our markdown integration to support a variety of diagram types
+* [Fabricjs 4.6.0](https://github.com/fabricjs/fabric.js) and [Fabric-history](https://github.com/lyzerk/fabric-history) for the whiteboard app
+
diff --git a/www/lib/fabric.min.js b/www/lib/fabric.min.js
new file mode 100644
index 000000000..34c1ff02f
--- /dev/null
+++ b/www/lib/fabric.min.js
@@ -0,0 +1 @@
+var jsdom,virtualWindow,fabric=fabric||{version:"4.6.0"};function resizeCanvasIfNeeded(t){var e=t.targetCanvas,i=e.width,r=e.height,n=t.destinationWidth,t=t.destinationHeight;i===n&&r===t||(e.width=n,e.height=t)}function copyGLTo2DDrawImage(t,e){var i=t.canvas,r=e.targetCanvas,t=r.getContext("2d");t.translate(0,r.height),t.scale(1,-1);e=i.height-r.height;t.drawImage(i,0,e,r.width,r.height,0,0,r.width,r.height)}function copyGLTo2DPutImageData(t,e){var i=e.targetCanvas.getContext("2d"),r=e.destinationWidth,n=e.destinationHeight,s=r*n*4,e=new Uint8Array(this.imageBuffer,0,s),s=new Uint8ClampedArray(this.imageBuffer,0,s);t.readPixels(0,0,r,n,t.RGBA,t.UNSIGNED_BYTE,e);n=new ImageData(s,r,n);i.putImageData(n,0,0)}"undefined"!=typeof exports?exports.fabric=fabric:"function"==typeof define&&define.amd&&define([],function(){return fabric}),"undefined"!=typeof document&&"undefined"!=typeof window?(document instanceof("undefined"!=typeof HTMLDocument?HTMLDocument:Document)?fabric.document=document:fabric.document=document.implementation.createHTMLDocument(""),fabric.window=window):(jsdom=require("jsdom"),virtualWindow=new jsdom.JSDOM(decodeURIComponent("%3C!DOCTYPE%20html%3E%3Chtml%3E%3Chead%3E%3C%2Fhead%3E%3Cbody%3E%3C%2Fbody%3E%3C%2Fhtml%3E"),{features:{FetchExternalResources:["img"]},resources:"usable"}).window,fabric.document=virtualWindow.document,fabric.jsdomImplForWrapper=require("jsdom/lib/jsdom/living/generated/utils").implForWrapper,fabric.nodeCanvas=require("jsdom/lib/jsdom/utils").Canvas,fabric.window=virtualWindow,DOMParser=fabric.window.DOMParser),fabric.isTouchSupported="ontouchstart"in fabric.window||"ontouchstart"in fabric.document||fabric.window&&fabric.window.navigator&&0<fabric.window.navigator.maxTouchPoints,fabric.isLikelyNode="undefined"!=typeof Buffer&&"undefined"==typeof window,fabric.SHARED_ATTRIBUTES=["display","transform","fill","fill-opacity","fill-rule","opacity","stroke","stroke-dasharray","stroke-linecap","stroke-dashoffset","stroke-linejoin","stroke-miterlimit","stroke-opacity","stroke-width","id","paint-order","vector-effect","instantiated_by_use","clip-path"],fabric.DPI=96,fabric.reNum="(?:[-+]?(?:\\d+|\\d*\\.\\d+)(?:[eE][-+]?\\d+)?)",fabric.commaWsp="(?:\\s+,?\\s*|,\\s*)",fabric.rePathCommand=/([-+]?((\d+\.\d+)|((\d+)|(\.\d+)))(?:[eE][-+]?\d+)?)/gi,fabric.reNonWord=/[ \n\.,;!\?\-]/,fabric.fontPaths={},fabric.iMatrix=[1,0,0,1,0,0],fabric.svgNS="http://www.w3.org/2000/svg",fabric.perfLimitSizeTotal=2097152,fabric.maxCacheSideLimit=4096,fabric.minCacheSideLimit=256,fabric.charWidthsCache={},fabric.textureSize=2048,fabric.disableStyleCopyPaste=!1,fabric.enableGLFiltering=!0,fabric.devicePixelRatio=fabric.window.devicePixelRatio||fabric.window.webkitDevicePixelRatio||fabric.window.mozDevicePixelRatio||1,fabric.browserShadowBlurConstant=1,fabric.arcToSegmentsCache={},fabric.boundsOfCurveCache={},fabric.cachesBoundsOfCurve=!0,fabric.forceGLPutImageData=!1,fabric.initFilterBackend=function(){return fabric.enableGLFiltering&&fabric.isWebglSupported&&fabric.isWebglSupported(fabric.textureSize)?(console.log("max texture size: "+fabric.maxTextureSize),new fabric.WebglFilterBackend({tileSize:fabric.textureSize})):fabric.Canvas2dFilterBackend?new fabric.Canvas2dFilterBackend:void 0},"undefined"!=typeof document&&"undefined"!=typeof window&&(window.fabric=fabric),function(){function r(t,e){this.__eventListeners[t]&&(t=this.__eventListeners[t],e?t[t.indexOf(e)]=!1:fabric.util.array.fill(t,!1))}function n(t,e){var i=function(){e.apply(this,arguments),this.off(t,i)}.bind(this);this.on(t,i)}fabric.Observable={fire:function(t,e){if(!this.__eventListeners)return this;var i=this.__eventListeners[t];if(!i)return this;for(var r=0,n=i.length;r<n;r++)i[r]&&i[r].call(this,e||{});return this.__eventListeners[t]=i.filter(function(t){return!1!==t}),this},on:function(t,e){if(this.__eventListeners||(this.__eventListeners={}),1===arguments.length)for(var i in t)this.on(i,t[i]);else this.__eventListeners[t]||(this.__eventListeners[t]=[]),this.__eventListeners[t].push(e);return this},once:function(t,e){if(1===arguments.length)for(var i in t)n.call(this,i,t[i]);else n.call(this,t,e);return this},off:function(t,e){if(!this.__eventListeners)return this;if(0===arguments.length)for(t in this.__eventListeners)r.call(this,t);else if(1===arguments.length&&"object"==typeof arguments[0])for(var i in t)r.call(this,i,t[i]);else r.call(this,t,e);return this}}}(),fabric.Collection={_objects:[],add:function(){if(this._objects.push.apply(this._objects,arguments),this._onObjectAdded)for(var t=0,e=arguments.length;t<e;t++)this._onObjectAdded(arguments[t]);return this.renderOnAddRemove&&this.requestRenderAll(),this},insertAt:function(t,e,i){var r=this._objects;return i?r[e]=t:r.splice(e,0,t),this._onObjectAdded&&this._onObjectAdded(t),this.renderOnAddRemove&&this.requestRenderAll(),this},remove:function(){for(var t,e=this._objects,i=!1,r=0,n=arguments.length;r<n;r++)-1!==(t=e.indexOf(arguments[r]))&&(i=!0,e.splice(t,1),this._onObjectRemoved&&this._onObjectRemoved(arguments[r]));return this.renderOnAddRemove&&i&&this.requestRenderAll(),this},forEachObject:function(t,e){for(var i=this.getObjects(),r=0,n=i.length;r<n;r++)t.call(e,i[r],r,i);return this},getObjects:function(e){return void 0===e?this._objects.concat():this._objects.filter(function(t){return t.type===e})},item:function(t){return this._objects[t]},isEmpty:function(){return 0===this._objects.length},size:function(){return this._objects.length},contains:function(e,t){return-1<this._objects.indexOf(e)||!!t&&this._objects.some(function(t){return"function"==typeof t.contains&&t.contains(e,!0)})},complexity:function(){return this._objects.reduce(function(t,e){return t+=e.complexity?e.complexity():0},0)}},fabric.CommonMethods={_setOptions:function(t){for(var e in t)this.set(e,t[e])},_initGradient:function(t,e){!t||!t.colorStops||t instanceof fabric.Gradient||this.set(e,new fabric.Gradient(t))},_initPattern:function(t,e,i){!t||!t.source||t instanceof fabric.Pattern?i&&i():this.set(e,new fabric.Pattern(t,i))},_setObject:function(t){for(var e in t)this._set(e,t[e])},set:function(t,e){return"object"==typeof t?this._setObject(t):this._set(t,e),this},_set:function(t,e){this[t]=e},toggle:function(t){var e=this.get(t);return"boolean"==typeof e&&this.set(t,!e),this},get:function(t){return this[t]}},function(s){var l=Math.sqrt,u=Math.atan2,o=Math.pow,a=Math.PI/180,i=Math.PI/2;fabric.util={cos:function(t){if(0===t)return 1;switch((t=t<0?-t:t)/i){case 1:case 3:return 0;case 2:return-1}return Math.cos(t)},sin:function(t){if(0===t)return 0;var e=t<0?-1:1;switch(t/i){case 1:return e;case 2:return 0;case 3:return-e}return Math.sin(t)},removeFromArray:function(t,e){e=t.indexOf(e);return-1!==e&&t.splice(e,1),t},getRandomInt:function(t,e){return Math.floor(Math.random()*(e-t+1))+t},degreesToRadians:function(t){return t*a},radiansToDegrees:function(t){return t/a},rotatePoint:function(t,e,i){t=new fabric.Point(t.x-e.x,t.y-e.y),i=fabric.util.rotateVector(t,i);return new fabric.Point(i.x,i.y).addEquals(e)},rotateVector:function(t,e){var i=fabric.util.sin(e),e=fabric.util.cos(e);return{x:t.x*e-t.y*i,y:t.x*i+t.y*e}},transformPoint:function(t,e,i){return i?new fabric.Point(e[0]*t.x+e[2]*t.y,e[1]*t.x+e[3]*t.y):new fabric.Point(e[0]*t.x+e[2]*t.y+e[4],e[1]*t.x+e[3]*t.y+e[5])},makeBoundingBoxFromPoints:function(t,e){if(e)for(var i=0;i<t.length;i++)t[i]=fabric.util.transformPoint(t[i],e);var r=[t[0].x,t[1].x,t[2].x,t[3].x],n=fabric.util.array.min(r),s=fabric.util.array.max(r)-n,o=[t[0].y,t[1].y,t[2].y,t[3].y],r=fabric.util.array.min(o);return{left:n,top:r,width:s,height:fabric.util.array.max(o)-r}},invertTransform:function(t){var e=1/(t[0]*t[3]-t[1]*t[2]),e=[e*t[3],-e*t[1],-e*t[2],e*t[0]],t=fabric.util.transformPoint({x:t[4],y:t[5]},e,!0);return e[4]=-t.x,e[5]=-t.y,e},toFixed:function(t,e){return parseFloat(Number(t).toFixed(e))},parseUnit:function(t,e){var i=/\D{0,2}$/.exec(t),r=parseFloat(t);switch(e=e||fabric.Text.DEFAULT_SVG_FONT_SIZE,i[0]){case"mm":return r*fabric.DPI/25.4;case"cm":return r*fabric.DPI/2.54;case"in":return r*fabric.DPI;case"pt":return r*fabric.DPI/72;case"pc":return r*fabric.DPI/72*12;case"em":return r*e;default:return r}},falseFunction:function(){return!1},getKlass:function(t,e){return t=fabric.util.string.camelize(t.charAt(0).toUpperCase()+t.slice(1)),fabric.util.resolveNamespace(e)[t]},getSvgAttributes:function(t){var e=["instantiated_by_use","style","id","class"];switch(t){case"linearGradient":e=e.concat(["x1","y1","x2","y2","gradientUnits","gradientTransform"]);break;case"radialGradient":e=e.concat(["gradientUnits","gradientTransform","cx","cy","r","fx","fy","fr"]);break;case"stop":e=e.concat(["offset","stop-color","stop-opacity"])}return e},resolveNamespace:function(t){if(!t)return fabric;for(var e=t.split("."),i=e.length,r=s||fabric.window,n=0;n<i;++n)r=r[e[n]];return r},loadImage:function(t,e,i,r){var n,s;t?(s=function(){e&&e.call(i,n,!1),n=n.onload=n.onerror=null},(n=fabric.util.createImage()).onload=s,n.onerror=function(){fabric.log("Error loading 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fabric.document.createElement("img")},multiplyTransformMatrices:function(t,e,i){return[t[0]*e[0]+t[2]*e[1],t[1]*e[0]+t[3]*e[1],t[0]*e[2]+t[2]*e[3],t[1]*e[2]+t[3]*e[3],i?0:t[0]*e[4]+t[2]*e[5]+t[4],i?0:t[1]*e[4]+t[3]*e[5]+t[5]]},qrDecompose:function(t){var e=u(t[1],t[0]),i=o(t[0],2)+o(t[1],2),r=l(i),n=(t[0]*t[3]-t[2]*t[1])/r,i=u(t[0]*t[2]+t[1]*t[3],i);return{angle:e/a,scaleX:r,scaleY:n,skewX:i/a,skewY:0,translateX:t[4],translateY:t[5]}},calcRotateMatrix:function(t){if(!t.angle)return fabric.iMatrix.concat();var e=fabric.util.degreesToRadians(t.angle),t=fabric.util.cos(e),e=fabric.util.sin(e);return[t,e,-e,t,0,0]},calcDimensionsMatrix:function(t){var e=void 0===t.scaleX?1:t.scaleX,i=void 0===t.scaleY?1:t.scaleY,r=[t.flipX?-e:e,0,0,t.flipY?-i:i,0,0],e=fabric.util.multiplyTransformMatrices,i=fabric.util.degreesToRadians;return t.skewX&&(r=e(r,[1,0,Math.tan(i(t.skewX)),1],!0)),r=t.skewY?e(r,[1,Math.tan(i(t.skewY)),0,1],!0):r},composeMatrix:function(t){var 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t&&t.length&&("meet"!==(i=t.pop())&&"slice"!==i?(e=i,i="meet"):t.length&&(e=t.pop())),{meetOrSlice:i,alignX:"none"!==e?e.slice(1,4):"none",alignY:"none"!==e?e.slice(5,8):"none"}},clearFabricFontCache:function(t){(t=(t||"").toLowerCase())?fabric.charWidthsCache[t]&&delete fabric.charWidthsCache[t]:fabric.charWidthsCache={}},limitDimsByArea:function(t,e){t=Math.sqrt(e*t),e=Math.floor(e/t);return{x:Math.floor(t),y:e}},capValue:function(t,e,i){return Math.max(t,Math.min(e,i))},findScaleToFit:function(t,e){return Math.min(e.width/t.width,e.height/t.height)},findScaleToCover:function(t,e){return Math.max(e.width/t.width,e.height/t.height)},matrixToSVG:function(t){return"matrix("+t.map(function(t){return fabric.util.toFixed(t,fabric.Object.NUM_FRACTION_DIGITS)}).join(" 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a=Math.PI,c=o*a/180,h=fabric.util.sin(c),l=fabric.util.cos(c),u=0,f=0,d=-l*t*.5-h*e*.5,g=-l*e*.5+h*t*.5,p=(i=Math.abs(i))*i,m=(r=Math.abs(r))*r,v=g*g,b=d*d,y=p*m-p*v-m*b,o=0;y<0?(i*=c=Math.sqrt(1-y/(p*m)),r*=c):o=(n===s?-1:1)*Math.sqrt(y/(p*v+m*b));var b=o*i*g/r,o=-o*r*d/i,_=l*b-h*o+.5*t,x=h*b+l*o+.5*e,C=z(1,0,(d-b)/i,(g-o)/r),o=z((d-b)/i,(g-o)/r,(-d-b)/i,(-g-o)/r);0===s&&0<o?o-=2*a:1===s&&o<0&&(o+=2*a);for(var S,T,w,O,k,P,E,D,j,A,M,F,I,L=Math.ceil(Math.abs(o/a*2)),R=[],B=o/L,X=8/3*Math.sin(B/4)*Math.sin(B/4)/Math.sin(B/2),Y=C+B,W=0;W<L;W++)R[W]=(S=C,T=Y,w=l,O=h,k=i,P=r,E=_,D=x,j=X,A=u,M=f,I=F=void 0,F=fabric.util.cos(S),I=fabric.util.sin(S),S=fabric.util.cos(T),T=fabric.util.sin(T),["C",A+j*(-w*k*I-O*P*F),M+j*(-O*k*I+w*P*F),(E=w*k*S-O*P*T+E)+j*(w*k*T+O*P*S),(D=O*k*S+w*P*T+D)+j*(O*k*T-w*P*S),E,D]),u=R[W][5],f=R[W][6],C=Y,Y+=B;return R}function z(t,e,i,r){t=Math.atan2(e,t),i=Math.atan2(r,i);return t<=i?i-t:2*Math.PI-(t-i)}function v(t,e,i,r,n,s,o,a){var c;if(fabric.cachesBoundsOfCurve&&(c=w.call(arguments),fabric.boundsOfCurveCache[c]))return fabric.boundsOfCurveCache[c];for(var h,l,u,f=Math.sqrt,d=Math.min,g=Math.max,p=Math.abs,m=[],v=[[],[]],b=6*t-12*i+6*n,y=-3*t+9*i-9*n+3*o,_=3*i-3*t,x=0;x<2;++x)0<x&&(b=6*e-12*r+6*s,y=-3*e+9*r-9*s+3*a,_=3*r-3*e),p(y)<1e-12?p(b)<1e-12||0<(h=-_/b)&&h<1&&m.push(h):(l=b*b-4*_*y)<0||(0<(l=(-b+(u=f(l)))/(2*y))&&l<1&&m.push(l),0<(u=(-b-u)/(2*y))&&u<1&&m.push(u));for(var C,S=m.length,T=S;S--;)h=m[S],v[0][S]=(C=1-h)*C*C*t+3*C*C*h*i+3*C*h*h*n+h*h*h*o,v[1][S]=C*C*C*e+3*C*C*h*r+3*C*h*h*s+h*h*h*a;v[0][T]=t,v[1][T]=e,v[0][T+1]=o,v[1][T+1]=a;g=[{x:d.apply(null,v[0]),y:d.apply(null,v[1])},{x:g.apply(null,v[0]),y:g.apply(null,v[1])}];return fabric.cachesBoundsOfCurve&&(fabric.boundsOfCurveCache[c]=g),g}function d(t,e,i){for(var r=i[1],n=i[2],s=i[3],o=i[4],a=i[5],c=m(i[6]-t,i[7]-e,r,n,o,a,s),h=0,l=c.length;h<l;h++)c[h][1]+=t,c[h][2]+=e,c[h][3]+=t,c[h][4]+=e,c[h][5]+=t,c[h][6]+=e;return c}function g(t,e,i,r){return Math.sqrt((i-t)*(i-t)+(r-e)*(r-e))}function p(t,e,i){for(var r,n={x:e,y:i},s=0,o=1;o<=100;o+=1)r=t(o/100),s+=g(n.x,n.y,r.x,r.y),n=r;return s}function h(t,e){for(var i,r,n,s=0,o=0,a=t.iterator,c={x:t.x,y:t.y},h=.01,t=t.angleFinder;o<e&&s<=1&&1e-4<h;)i=a(s),n=s,e<(r=g(c.x,c.y,i.x,i.y))+o?s-=h/=2:(c=i,s+=h,o+=r);return i.angle=t(n),i}function l(t){for(var e,i,r,n,s=0,o=t.length,a=0,c=0,h=0,l=0,u=[],f=0;f<o;f++){switch(r={x:a,y:c,command:(e=t[f])[0]},e[0]){case"M":r.length=0,h=a=e[1],l=c=e[2];break;case"L":r.length=g(a,c,e[1],e[2]),a=e[1],c=e[2];break;case"C":i=function(n,s,o,a,c,h,l,u){return function(t){var e=t*t*t,i=3*t*t*(1-t),r=3*t*(1-t)*(1-t),t=(1-t)*(1-t)*(1-t);return{x:l*e+c*i+o*r+n*t,y:u*e+h*i+a*r+s*t}}}(a,c,e[1],e[2],e[3],e[4],e[5],e[6]),n=function(i,r,n,s,o,a,c,h){return function(t){var e=1-t;return Math.atan2(3*e*e*(s-r)+6*e*t*(a-s)+3*t*t*(h-a),3*e*e*(n-i)+6*e*t*(o-n)+3*t*t*(c-o))}}(a,c,e[1],e[2],e[3],e[4],e[5],e[6]),r.iterator=i,r.angleFinder=n,r.length=p(i,a,c),a=e[5],c=e[6];break;case"Q":i=function(r,n,s,o,a,c){return function(t){var e=t*t,i=2*t*(1-t),t=(1-t)*(1-t);return{x:a*e+s*i+r*t,y:c*e+o*i+n*t}}}(a,c,e[1],e[2],e[3],e[4]),n=function(i,r,n,s,o,a){return function(t){var e=1-t;return Math.atan2(2*e*(s-r)+2*t*(a-s),2*e*(n-i)+2*t*(o-n))}}(a,c,e[1],e[2],e[3],e[4]),r.iterator=i,r.angleFinder=n,r.length=p(i,a,c),a=e[3],c=e[4];break;case"Z":case"z":r.destX=h,r.destY=l,r.length=g(a,c,h,l),a=h,c=l}s+=r.length,u.push(r)}return u.push({length:s,x:a,y:c}),u}fabric.util.joinPath=function(t){return t.map(function(t){return t.join(" ")}).join(" ")},fabric.util.parsePath=function(t){var e,i,r,n,s=[],o=[],a=fabric.rePathCommand,c="[-+]?(?:\\d*\\.\\d+|\\d+\\.?)(?:[eE][-+]?\\d+)?\\s*",h="("+c+")"+fabric.commaWsp,l="([01])"+fabric.commaWsp+"?",u=new RegExp(h+"?"+h+"?"+h+l+l+h+"?("+c+")","g");if(!t||!t.match)return s;for(var f,d=0,g=(f=t.match(/[mzlhvcsqta][^mzlhvcsqta]*/gi)).length;d<g;d++){n=(e=f[d]).slice(1).trim(),o.length=0;var p,m=e.charAt(0),v=[m];if("a"===m.toLowerCase())for(;p=u.exec(n);)for(var b=1;b<p.length;b++)o.push(p[b]);else for(;r=a.exec(n);)o.push(r[0]);for(var b=0,y=o.length;b<y;b++)i=parseFloat(o[b]),isNaN(i)||v.push(i);var _=T[m.toLowerCase()],x=O[m]||m;if(v.length-1>_)for(var C=1,S=v.length;C<S;C+=_)s.push([m].concat(v.slice(C,C+_))),m=x;else s.push(v)}return s},fabric.util.makePathSimpler=function(t){for(var e,i,r,n,s,o=0,a=0,c=t.length,h=0,l=0,u=[],f=0;f<c;++f){switch(i=!1,(e=t[f].slice(0))[0]){case"l":e[0]="L",e[1]+=o,e[2]+=a;case"L":o=e[1],a=e[2];break;case"h":e[1]+=o;case"H":e[0]="L",e[2]=a,o=e[1];break;case"v":e[1]+=a;case"V":e[0]="L",a=e[1],e[1]=o,e[2]=a;break;case"m":e[0]="M",e[1]+=o,e[2]+=a;case"M":o=e[1],a=e[2],h=e[1],l=e[2];break;case"c":e[0]="C",e[1]+=o,e[2]+=a,e[3]+=o,e[4]+=a,e[5]+=o,e[6]+=a;case"C":n=e[3],s=e[4],o=e[5],a=e[6];break;case"s":e[0]="S",e[1]+=o,e[2]+=a,e[3]+=o,e[4]+=a;case"S":s="C"===r?(n=2*o-n,2*a-s):(n=o,a),o=e[3],a=e[4],e[0]="C",e[5]=e[3],e[6]=e[4],e[3]=e[1],e[4]=e[2],e[1]=n,e[2]=s,n=e[3],s=e[4];break;case"q":e[0]="Q",e[1]+=o,e[2]+=a,e[3]+=o,e[4]+=a;case"Q":n=e[1],s=e[2],o=e[3],a=e[4];break;case"t":e[0]="T",e[1]+=o,e[2]+=a;case"T":s="Q"===r?(n=2*o-n,2*a-s):(n=o,a),e[0]="Q",o=e[1],a=e[2],e[1]=n,e[2]=s,e[3]=o,e[4]=a;break;case"a":e[0]="A",e[6]+=o,e[7]+=a;case"A":i=!0,u=u.concat(d(o,a,e)),o=e[6],a=e[7];break;case"z":case"Z":o=h,a=l}i||u.push(e),r=e[0]}return u},fabric.util.getSmoothPathFromPoints=function(t,e){var i,r,n=[],s=new fabric.Point(t[0].x,t[0].y),o=new fabric.Point(t[1].x,t[1].y),a=t.length,c=1,h=0,l=2<a;for(l&&(c=t[2].x<o.x?-1:t[2].x===o.x?0:1,h=t[2].y<o.y?-1:t[2].y===o.y?0:1),n.push(["M",s.x-c*(e=e||0),s.y-h*e]),i=1;i<a;i++)s.eq(o)||(r=s.midPointFrom(o),n.push(["Q",s.x,s.y,r.x,r.y])),s=t[i],i+1<t.length&&(o=t[i+1]);return l&&(c=s.x>t[i-2].x?1:s.x===t[i-2].x?0:-1,h=s.y>t[i-2].y?1:s.y===t[i-2].y?0:-1),n.push(["L",s.x+c*e,s.y+h*e]),n},fabric.util.getPathSegmentsInfo=l,fabric.util.getBoundsOfCurve=v,fabric.util.getPointOnPath=function(t,e,i){i=i||l(t);for(var r=0;0<e-i[r].length&&r<i.length-2;)e-=i[r].length,r++;var n,s=i[r],o=e/s.length,a=s.command,c=t[r];switch(a){case"M":return{x:s.x,y:s.y,angle:0};case"Z":case"z":return(n=new fabric.Point(s.x,s.y).lerp(new fabric.Point(s.destX,s.destY),o)).angle=Math.atan2(s.destY-s.y,s.destX-s.x),n;case"L":return(n=new fabric.Point(s.x,s.y).lerp(new fabric.Point(c[1],c[2]),o)).angle=Math.atan2(c[2]-s.y,c[1]-s.x),n;case"C":case"Q":return h(s,e)}},fabric.util.transformPath=function(t,n,e){return e&&(n=fabric.util.multiplyTransformMatrices(n,[1,0,0,1,-e.x,-e.y])),t.map(function(t){for(var e=t.slice(0),i={},r=1;r<t.length-1;r+=2)i.x=t[r],i.y=t[r+1],i=fabric.util.transformPoint(i,n),e[r]=i.x,e[r+1]=i.y;return e})},fabric.util.fromArcToBeizers=d,fabric.util.getBoundsOfArc=function(t,e,i,r,n,s,o,a,c){for(var h,l=0,u=0,f=[],d=m(a-t,c-e,i,r,s,o,n),g=0,p=d.length;g<p;g++)h=v(l,u,d[g][1],d[g][2],d[g][3],d[g][4],d[g][5],d[g][6]),f.push({x:h[0].x+t,y:h[0].y+e}),f.push({x:h[1].x+t,y:h[1].y+e}),l=d[g][5],u=d[g][6];return f},fabric.util.drawArc=function(e,t,i,r){d(t,i,r=r.slice(0).unshift("X")).forEach(function(t){e.bezierCurveTo.apply(e,t.slice(1))})}}(),function(){var o=Array.prototype.slice;function i(t,e,i){if(t&&0!==t.length){var r=t.length-1,n=e?t[r][e]:t[r];if(e)for(;r--;)i(t[r][e],n)&&(n=t[r][e]);else for(;r--;)i(t[r],n)&&(n=t[r]);return n}}fabric.util.array={fill:function(t,e){for(var i=t.length;i--;)t[i]=e;return t},invoke:function(t,e){for(var i=o.call(arguments,2),r=[],n=0,s=t.length;n<s;n++)r[n]=i.length?t[n][e].apply(t[n],i):t[n][e].call(t[n]);return r},min:function(t,e){return i(t,e,function(t,e){return t<e})},max:function(t,e){return i(t,e,function(t,e){return e<=t})}}}(),function(){function o(t,e,i){if(i)if(!fabric.isLikelyNode&&e instanceof Element)t=e;else if(e instanceof Array){t=[];for(var r=0,n=e.length;r<n;r++)t[r]=o({},e[r],i)}else if(e&&"object"==typeof e)for(var s in e)"canvas"===s||"group"===s?t[s]=null:e.hasOwnProperty(s)&&(t[s]=o({},e[s],i));else t=e;else for(var s in e)t[s]=e[s];return t}fabric.util.object={extend:o,clone:function(t,e){return o({},t,e)}},fabric.util.object.extend(fabric.util,fabric.Observable)}(),fabric.util.string={camelize:function(t){return t.replace(/-+(.)?/g,function(t,e){return e?e.toUpperCase():""})},capitalize:function(t,e){return t.charAt(0).toUpperCase()+(e?t.slice(1):t.slice(1).toLowerCase())},escapeXml:function(t){return t.replace(/&/g,"&amp;").replace(/"/g,"&quot;").replace(/'/g,"&apos;").replace(/</g,"&lt;").replace(/>/g,"&gt;")},graphemeSplit:function(t){for(var e,i=0,r=[],i=0;i<t.length;i++)!1!==(e=function(t,e){var i=t.charCodeAt(e);if(isNaN(i))return"";if(i<55296||57343<i)return t.charAt(e);if(55296<=i&&i<=56319){if(t.length<=e+1)throw"High surrogate without following low surrogate";i=t.charCodeAt(e+1);if(i<56320||57343<i)throw"High surrogate without following low surrogate";return t.charAt(e)+t.charAt(e+1)}if(0===e)throw"Low surrogate without preceding high surrogate";e=t.charCodeAt(e-1);if(e<55296||56319<e)throw"Low surrogate without preceding high surrogate";return!1}(t,i))&&r.push(e);return r}},function(){function s(){}var o=Array.prototype.slice,a=function(){for(var t in{toString:1})if("toString"===t)return!1;return!0}();function c(){}function h(t){for(var e=null,i=this;i.constructor.superclass;){var r=i.constructor.superclass.prototype[t];if(i[t]!==r){e=r;break}i=i.constructor.superclass.prototype}return e?1<arguments.length?e.apply(this,o.call(arguments,1)):e.call(this):console.log("tried to callSuper "+t+", method not found in prototype chain",this)}fabric.util.createClass=function(){var t=null,e=o.call(arguments,0);function i(){this.initialize.apply(this,arguments)}"function"==typeof e[0]&&(t=e.shift()),i.superclass=t,i.subclasses=[],t&&(c.prototype=t.prototype,i.prototype=new c,t.subclasses.push(i));for(var r=0,n=e.length;r<n;r++)!function(t,r,n){for(var e in r)e in t.prototype&&"function"==typeof t.prototype[e]&&-1<(r[e]+"").indexOf("callSuper")?t.prototype[e]=function(i){return function(){var t=this.constructor.superclass;this.constructor.superclass=n;var e=r[i].apply(this,arguments);if(this.constructor.superclass=t,"initialize"!==i)return e}}(e):t.prototype[e]=r[e],a&&(r.toString!==Object.prototype.toString&&(t.prototype.toString=r.toString),r.valueOf!==Object.prototype.valueOf&&(t.prototype.valueOf=r.valueOf))}(i,e[r],t);return i.prototype.initialize||(i.prototype.initialize=s),(i.prototype.constructor=i).prototype.callSuper=h,i}}(),function(){var n=!!fabric.document.createElement("div").attachEvent,e=["touchstart","touchmove","touchend"];fabric.util.addListener=function(t,e,i,r){t&&t.addEventListener(e,i,!n&&r)},fabric.util.removeListener=function(t,e,i,r){t&&t.removeEventListener(e,i,!n&&r)},fabric.util.getPointer=function(t){var e=t.target,i=fabric.util.getScrollLeftTop(e),e=(t=(e=t).changedTouches)&&t[0]?t[0]:e;return{x:e.clientX+i.left,y:e.clientY+i.top}},fabric.util.isTouchEvent=function(t){return-1<e.indexOf(t.type)||"touch"===t.pointerType}}(),function(){var t=fabric.document.createElement("div"),e="string"==typeof t.style.opacity,t="string"==typeof t.style.filter,r=/alpha\s*\(\s*opacity\s*=\s*([^\)]+)\)/,n=function(t){return t};e?n=function(t,e){return t.style.opacity=e,t}:t&&(n=function(t,e){var i=t.style;return t.currentStyle&&!t.currentStyle.hasLayout&&(i.zoom=1),r.test(i.filter)?i.filter=i.filter.replace(r,e=.9999<=e?"":"alpha(opacity="+100*e+")"):i.filter+=" alpha(opacity="+100*e+")",t}),fabric.util.setStyle=function(t,e){var i,r=t.style;if(!r)return t;if("string"==typeof e)return t.style.cssText+=";"+e,-1<e.indexOf("opacity")?n(t,e.match(/opacity:\s*(\d?\.?\d*)/)[1]):t;for(i in e)"opacity"===i?n(t,e[i]):r["float"===i||"cssFloat"===i?void 0===r.styleFloat?"cssFloat":"styleFloat":i]=e[i];return t}}(),function(){var e=Array.prototype.slice;var a,t,i,r=function(t){return e.call(t,0)};try{t=r(fabric.document.childNodes)instanceof Array}catch(t){}function n(t,e){var i,r=fabric.document.createElement(t);for(i in e)"class"===i?r.className=e[i]:"for"===i?r.htmlFor=e[i]:r.setAttribute(i,e[i]);return r}function c(t){for(var e=0,i=0,r=fabric.document.documentElement,n=fabric.document.body||{scrollLeft:0,scrollTop:0};t&&(t.parentNode||t.host)&&((t=t.parentNode||t.host)===fabric.document?(e=n.scrollLeft||r.scrollLeft||0,i=n.scrollTop||r.scrollTop||0):(e+=t.scrollLeft||0,i+=t.scrollTop||0),1!==t.nodeType||"fixed"!==t.style.position););return{left:e,top:i}}t||(r=function(t){for(var e=new Array(t.length),i=t.length;i--;)e[i]=t[i];return e}),a=fabric.document.defaultView&&fabric.document.defaultView.getComputedStyle?function(t,e){t=fabric.document.defaultView.getComputedStyle(t,null);return t?t[e]:void 0}:function(t,e){var i=t.style[e];return i=!i&&t.currentStyle?t.currentStyle[e]:i},t=fabric.document.documentElement.style,i="userSelect"in t?"userSelect":"MozUserSelect"in t?"MozUserSelect":"WebkitUserSelect"in t?"WebkitUserSelect":"KhtmlUserSelect"in t?"KhtmlUserSelect":"",fabric.util.makeElementUnselectable=function(t){return void 0!==t.onselectstart&&(t.onselectstart=fabric.util.falseFunction),i?t.style[i]="none":"string"==typeof t.unselectable&&(t.unselectable="on"),t},fabric.util.makeElementSelectable=function(t){return void 0!==t.onselectstart&&(t.onselectstart=null),i?t.style[i]="":"string"==typeof t.unselectable&&(t.unselectable=""),t},fabric.util.setImageSmoothing=function(t,e){t.imageSmoothingEnabled=t.imageSmoothingEnabled||t.webkitImageSmoothingEnabled||t.mozImageSmoothingEnabled||t.msImageSmoothingEnabled||t.oImageSmoothingEnabled,t.imageSmoothingEnabled=e},fabric.util.getById=function(t){return"string"==typeof t?fabric.document.getElementById(t):t},fabric.util.toArray=r,fabric.util.addClass=function(t,e){t&&-1===(" "+t.className+" ").indexOf(" "+e+" ")&&(t.className+=(t.className?" ":"")+e)},fabric.util.makeElement=n,fabric.util.wrapElement=function(t,e,i){return"string"==typeof e&&(e=n(e,i)),t.parentNode&&t.parentNode.replaceChild(e,t),e.appendChild(t),e},fabric.util.getScrollLeftTop=c,fabric.util.getElementOffset=function(t){var e,i,r=t&&t.ownerDocument,n={left:0,top:0},s={left:0,top:0},o={borderLeftWidth:"left",borderTopWidth:"top",paddingLeft:"left",paddingTop:"top"};if(!r)return s;for(i in o)s[o[i]]+=parseInt(a(t,i),10)||0;return e=r.documentElement,void 0!==t.getBoundingClientRect&&(n=t.getBoundingClientRect()),r=c(t),{left:n.left+r.left-(e.clientLeft||0)+s.left,top:n.top+r.top-(e.clientTop||0)+s.top}},fabric.util.getNodeCanvas=function(t){return(t=fabric.jsdomImplForWrapper(t))._canvas||t._image},fabric.util.cleanUpJsdomNode=function(t){!fabric.isLikelyNode||(t=fabric.jsdomImplForWrapper(t))&&(t._image=null,t._canvas=null,t._currentSrc=null,t._attributes=null,t._classList=null)}}(),function(){function a(){}fabric.util.request=function(t,e){var i,r=(e=e||{}).method?e.method.toUpperCase():"GET",n=e.onComplete||function(){},s=new fabric.window.XMLHttpRequest,o=e.body||e.parameters;return s.onreadystatechange=function(){4===s.readyState&&(n(s),s.onreadystatechange=a)},"GET"===r&&(o=null,"string"==typeof e.parameters&&(i=t,e=e.parameters,t=i+(/\?/.test(i)?"&":"?")+e)),s.open(r,t,!0),"POST"!==r&&"PUT"!==r||s.setRequestHeader("Content-Type","application/x-www-form-urlencoded"),s.send(o),s}}(),fabric.log=console.log,fabric.warn=console.warn,function(){function i(){return!1}function r(t,e,i,r){return-i*Math.cos(t/r*(Math.PI/2))+i+e}var t=fabric.window.requestAnimationFrame||fabric.window.webkitRequestAnimationFrame||fabric.window.mozRequestAnimationFrame||fabric.window.oRequestAnimationFrame||fabric.window.msRequestAnimationFrame||function(t){return fabric.window.setTimeout(t,1e3/60)},e=fabric.window.cancelAnimationFrame||fabric.window.clearTimeout;function m(){return 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v?v[h]:h,o[c],s,n),l[a]=h;l&&l.font&&_.parseFontDeclaration(l.font,l);e=d(s,l);return _.svgValidParentsRegEx.test(i.nodeName)?e:function(t){for(var e in b)if(void 0!==t[b[e]]&&""!==t[e]){if(void 0===t[e]){if(!_.Object.prototype[e])continue;t[e]=_.Object.prototype[e]}var i;0!==t[e].indexOf("url(")&&(i=new _.Color(t[e]),t[e]=i.setAlpha(p(i.getAlpha()*t[b[e]],2)).toRgba())}return t}(e)}},parseElements:function(t,e,i,r,n){new _.ElementsParser(t,e,i,r,n).parse()},parseStyleAttribute:function(t){var e,i,r,n={},t=t.getAttribute("style");return t&&("string"==typeof t?(e=n,t.replace(/;\s*$/,"").split(";").forEach(function(t){t=t.split(":");i=t[0].trim().toLowerCase(),r=t[1].trim(),e[i]=r})):function(t,e){var i,r,n;for(n in t)void 0!==t[n]&&(i=n.toLowerCase(),r=t[n],e[i]=r)}(t,n)),n},parsePointsAttribute:function(t){if(!t)return null;for(var e=[],i=0,r=(t=(t=t.replace(/,/g," ").trim()).split(/\s+/)).length;i<r;i+=2)e.push({x:parseFloat(t[i]),y:parseFloat(t[i+1])});return e},getCSSRules:function(t){for(var e=t.getElementsByTagName("style"),o={},a=0,c=e.length;a<c;a++){var i=e[a].textContent;""!==(i=i.replace(/\/\*[\s\S]*?\*\//g,"")).trim()&&i.match(/[^{]*\{[\s\S]*?\}/g).map(function(t){return t.trim()}).forEach(function(t){var e=t.match(/([\s\S]*?)\s*\{([^}]*)\}/),i={},r=e[2].trim().replace(/;$/,"").split(/\s*;\s*/);for(a=0,c=r.length;a<c;a++){var n=r[a].split(/\s*:\s*/),s=n[0],n=n[1];i[s]=n}(t=e[1]).split(",").forEach(function(t){""!==(t=t.replace(/^svg/i,"").trim())&&(o[t]?_.util.object.extend(o[t],i):o[t]=_.util.object.clone(i))})})}return o},loadSVGFromURL:function(t,n,e,i){t=t.replace(/^\n\s*/,"").trim(),new _.util.request(t,{method:"get",onComplete:function(t){t=t.responseXML;if(!t||!t.documentElement)return n&&n(null),!1;_.parseSVGDocument(t.documentElement,function(t,e,i,r){n&&n(t,e,i,r)},e,i)}})},loadSVGFromString:function(t,n,e,i){t=(new _.window.DOMParser).parseFromString(t.trim(),"text/xml");_.parseSVGDocument(t.documentElement,function(t,e,i,r){n(t,e,i,r)},e,i)}})}("undefined"!=typeof exports?exports:this),fabric.ElementsParser=function(t,e,i,r,n,s){this.elements=t,this.callback=e,this.options=i,this.reviver=r,this.svgUid=i&&i.svgUid||0,this.parsingOptions=n,this.regexUrl=/^url\(['"]?#([^'"]+)['"]?\)/g,this.doc=s},function(t){t.parse=function(){this.instances=new Array(this.elements.length),this.numElements=this.elements.length,this.createObjects()},t.createObjects=function(){var i=this;this.elements.forEach(function(t,e){t.setAttribute("svgUid",i.svgUid),i.createObject(t,e)})},t.findTag=function(t){return fabric[fabric.util.string.capitalize(t.tagName.replace("svg:",""))]},t.createObject=function(t,e){var i=this.findTag(t);if(i&&i.fromElement)try{i.fromElement(t,this.createCallback(e,t),this.options)}catch(t){fabric.log(t)}else this.checkIfDone()},t.createCallback=function(i,r){var n=this;return function(t){var e;n.resolveGradient(t,r,"fill"),n.resolveGradient(t,r,"stroke"),t instanceof fabric.Image&&t._originalElement&&(e=t.parsePreserveAspectRatioAttribute(r)),t._removeTransformMatrix(e),n.resolveClipPath(t,r),n.reviver&&n.reviver(r,t),n.instances[i]=t,n.checkIfDone()}},t.extractPropertyDefinition=function(t,e,i){t=t[e],e=this.regexUrl;if(e.test(t)){e.lastIndex=0;t=e.exec(t)[1];return e.lastIndex=0,fabric[i][this.svgUid][t]}},t.resolveGradient=function(t,e,i){var r=this.extractPropertyDefinition(t,i,"gradientDefs");r&&(e=e.getAttribute(i+"-opacity"),e=fabric.Gradient.fromElement(r,t,e,this.options),t.set(i,e))},t.createClipPathCallback=function(t,e){return function(t){t._removeTransformMatrix(),t.fillRule=t.clipRule,e.push(t)}},t.resolveClipPath=function(t,e){var i,r=this.extractPropertyDefinition(t,"clipPath","clipPaths");if(r){for(var n=[],s=fabric.util.invertTransform(t.calcTransformMatrix()),o=r[0].parentNode,a=e;a.parentNode&&a.getAttribute("clip-path")!==t.clipPath;)a=a.parentNode;a.parentNode.appendChild(o);for(var c=0;c<r.length;c++)i=r[c],this.findTag(i).fromElement(i,this.createClipPathCallback(t,n),this.options);r=1===n.length?n[0]:new fabric.Group(n),s=fabric.util.multiplyTransformMatrices(s,r.calcTransformMatrix()),r.clipPath&&this.resolveClipPath(r,a);s=fabric.util.qrDecompose(s);r.flipX=!1,r.flipY=!1,r.set("scaleX",s.scaleX),r.set("scaleY",s.scaleY),r.angle=s.angle,r.skewX=s.skewX,r.skewY=0,r.setPositionByOrigin({x:s.translateX,y:s.translateY},"center","center"),t.clipPath=r}else delete t.clipPath},t.checkIfDone=function(){0==--this.numElements&&(this.instances=this.instances.filter(function(t){return null!=t}),this.callback(this.instances,this.elements))}}(fabric.ElementsParser.prototype),function(t){"use strict";t=t.fabric||(t.fabric={});function i(t,e){this.x=t,this.y=e}t.Point?t.warn("fabric.Point is already defined"):(t.Point=i).prototype={type:"point",constructor:i,add:function(t){return new i(this.x+t.x,this.y+t.y)},addEquals:function(t){return this.x+=t.x,this.y+=t.y,this},scalarAdd:function(t){return new i(this.x+t,this.y+t)},scalarAddEquals:function(t){return this.x+=t,this.y+=t,this},subtract:function(t){return new i(this.x-t.x,this.y-t.y)},subtractEquals:function(t){return this.x-=t.x,this.y-=t.y,this},scalarSubtract:function(t){return new i(this.x-t,this.y-t)},scalarSubtractEquals:function(t){return this.x-=t,this.y-=t,this},multiply:function(t){return new i(this.x*t,this.y*t)},multiplyEquals:function(t){return this.x*=t,this.y*=t,this},divide:function(t){return new i(this.x/t,this.y/t)},divideEquals:function(t){return this.x/=t,this.y/=t,this},eq:function(t){return this.x===t.x&&this.y===t.y},lt:function(t){return this.x<t.x&&this.y<t.y},lte:function(t){return this.x<=t.x&&this.y<=t.y},gt:function(t){return this.x>t.x&&this.y>t.y},gte:function(t){return this.x>=t.x&&this.y>=t.y},lerp:function(t,e){return void 0===e&&(e=.5),e=Math.max(Math.min(1,e),0),new i(this.x+(t.x-this.x)*e,this.y+(t.y-this.y)*e)},distanceFrom:function(t){var e=this.x-t.x,t=this.y-t.y;return Math.sqrt(e*e+t*t)},midPointFrom:function(t){return this.lerp(t)},min:function(t){return new i(Math.min(this.x,t.x),Math.min(this.y,t.y))},max:function(t){return new i(Math.max(this.x,t.x),Math.max(this.y,t.y))},toString:function(){return this.x+","+this.y},setXY:function(t,e){return this.x=t,this.y=e,this},setX:function(t){return this.x=t,this},setY:function(t){return this.y=t,this},setFromPoint:function(t){return this.x=t.x,this.y=t.y,this},swap:function(t){var e=this.x,i=this.y;this.x=t.x,this.y=t.y,t.x=e,t.y=i},clone:function(){return new i(this.x,this.y)}}}("undefined"!=typeof exports?exports:this),function(t){"use strict";var a=t.fabric||(t.fabric={});function c(t){this.status=t,this.points=[]}a.Intersection?a.warn("fabric.Intersection is already defined"):(a.Intersection=c,a.Intersection.prototype={constructor:c,appendPoint:function(t){return this.points.push(t),this},appendPoints:function(t){return this.points=this.points.concat(t),this}},a.Intersection.intersectLineLine=function(t,e,i,r){var n,s=(r.x-i.x)*(t.y-i.y)-(r.y-i.y)*(t.x-i.x),o=(e.x-t.x)*(t.y-i.y)-(e.y-t.y)*(t.x-i.x),r=(r.y-i.y)*(e.x-t.x)-(r.x-i.x)*(e.y-t.y);return 0!=r?(i=o/r,0<=(r=s/r)&&r<=1&&0<=i&&i<=1?(n=new c("Intersection")).appendPoint(new a.Point(t.x+r*(e.x-t.x),t.y+r*(e.y-t.y))):n=new c):n=new c(0==s||0==o?"Coincident":"Parallel"),n},a.Intersection.intersectLinePolygon=function(t,e,i){for(var r,n,s=new c,o=i.length,a=0;a<o;a++)r=i[a],n=i[(a+1)%o],n=c.intersectLineLine(t,e,r,n),s.appendPoints(n.points);return 0<s.points.length&&(s.status="Intersection"),s},a.Intersection.intersectPolygonPolygon=function(t,e){for(var i=new c,r=t.length,n=0;n<r;n++){var s=t[n],o=t[(n+1)%r],o=c.intersectLinePolygon(s,o,e);i.appendPoints(o.points)}return 0<i.points.length&&(i.status="Intersection"),i},a.Intersection.intersectPolygonRectangle=function(t,e,i){var r=e.min(i),n=e.max(i),s=new a.Point(n.x,r.y),e=new a.Point(r.x,n.y),i=c.intersectLinePolygon(r,s,t),s=c.intersectLinePolygon(s,n,t),n=c.intersectLinePolygon(n,e,t),r=c.intersectLinePolygon(e,r,t),t=new c;return t.appendPoints(i.points),t.appendPoints(s.points),t.appendPoints(n.points),t.appendPoints(r.points),0<t.points.length&&(t.status="Intersection"),t})}("undefined"!=typeof exports?exports:this),function(t){"use strict";var h=t.fabric||(t.fabric={});function a(t){t?this._tryParsingColor(t):this.setSource([0,0,0,1])}function c(t,e,i){return i<0&&(i+=1),1<i&&--i,i<1/6?t+6*(e-t)*i:i<.5?e:i<2/3?t+(e-t)*(2/3-i)*6:t}h.Color?h.warn("fabric.Color is already defined."):(h.Color=a,h.Color.prototype={_tryParsingColor:function(t){var e;(e=(e=(e=(e=(e="transparent"===(t=t in a.colorNameMap?a.colorNameMap[t]:t)?[255,255,255,0]:e)||a.sourceFromHex(t))||a.sourceFromRgb(t))||a.sourceFromHsl(t))||[0,0,0,1])&&this.setSource(e)},_rgbToHsl:function(t,e,i){var r,n=h.util.array.max([t/=255,e/=255,i/=255]),s=h.util.array.min([t,e,i]),o=(n+s)/2;if(n===s)r=c=0;else{var a=n-s,c=.5<o?a/(2-n-s):a/(n+s);switch(n){case t:r=(e-i)/a+(e<i?6:0);break;case e:r=(i-t)/a+2;break;case i:r=(t-e)/a+4}r/=6}return[Math.round(360*r),Math.round(100*c),Math.round(100*o)]},getSource:function(){return this._source},setSource:function(t){this._source=t},toRgb:function(){var t=this.getSource();return"rgb("+t[0]+","+t[1]+","+t[2]+")"},toRgba:function(){var t=this.getSource();return"rgba("+t[0]+","+t[1]+","+t[2]+","+t[3]+")"},toHsl:function(){var t=this.getSource(),t=this._rgbToHsl(t[0],t[1],t[2]);return"hsl("+t[0]+","+t[1]+"%,"+t[2]+"%)"},toHsla:function(){var t=this.getSource(),e=this._rgbToHsl(t[0],t[1],t[2]);return"hsla("+e[0]+","+e[1]+"%,"+e[2]+"%,"+t[3]+")"},toHex:function(){var t,e=this.getSource(),i=e[0].toString(16);return i=1===i.length?"0"+i:i,t=1===(t=e[1].toString(16)).length?"0"+t:t,e=1===(e=e[2].toString(16)).length?"0"+e:e,i.toUpperCase()+t.toUpperCase()+e.toUpperCase()},toHexa:function(){var t=this.getSource(),t=Math.round(255*t[3]);return t=1===(t=t.toString(16)).length?"0"+t:t,this.toHex()+t.toUpperCase()},getAlpha:function(){return this.getSource()[3]},setAlpha:function(t){var e=this.getSource();return e[3]=t,this.setSource(e),this},toGrayscale:function(){var t=this.getSource(),e=parseInt((.3*t[0]+.59*t[1]+.11*t[2]).toFixed(0),10),t=t[3];return this.setSource([e,e,e,t]),this},toBlackWhite:function(t){var e=this.getSource(),i=(.3*e[0]+.59*e[1]+.11*e[2]).toFixed(0),e=e[3];return t=t||127,i=Number(i)<Number(t)?0:255,this.setSource([i,i,i,e]),this},overlayWith:function(t){t instanceof a||(t=new a(t));for(var e=[],i=this.getAlpha(),r=this.getSource(),n=t.getSource(),s=0;s<3;s++)e.push(Math.round(.5*r[s]+.5*n[s]));return e[3]=i,this.setSource(e),this}},h.Color.reRGBa=/^rgba?\(\s*(\d{1,3}(?:\.\d+)?\%?)\s*,\s*(\d{1,3}(?:\.\d+)?\%?)\s*,\s*(\d{1,3}(?:\.\d+)?\%?)\s*(?:\s*,\s*((?:\d*\.?\d+)?)\s*)?\)$/i,h.Color.reHSLa=/^hsla?\(\s*(\d{1,3})\s*,\s*(\d{1,3}\%)\s*,\s*(\d{1,3}\%)\s*(?:\s*,\s*(\d+(?:\.\d+)?)\s*)?\)$/i,h.Color.reHex=/^#?([0-9a-f]{8}|[0-9a-f]{6}|[0-9a-f]{4}|[0-9a-f]{3})$/i,h.Color.colorNameMap={aliceblue:"#F0F8FF",antiquewhite:"#FAEBD7",aqua:"#00FFFF",aquamarine:"#7FFFD4",azure:"#F0FFFF",beige:"#F5F5DC",bisque:"#FFE4C4",black:"#000000",blanchedalmond:"#FFEBCD",blue:"#0000FF",blueviolet:"#8A2BE2",brown:"#A52A2A",burlywood:"#DEB887",cadetblue:"#5F9EA0",chartreuse:"#7FFF00",chocolate:"#D2691E",coral:"#FF7F50",cornflowerblue:"#6495ED",cornsilk:"#FFF8DC",crimson:"#DC143C",cyan:"#00FFFF",darkblue:"#00008B",darkcyan:"#008B8B",darkgoldenrod:"#B8860B",darkgray:"#A9A9A9",darkgrey:"#A9A9A9",darkgreen:"#006400",darkkhaki:"#BDB76B",darkmagenta:"#8B008B",darkolivegreen:"#556B2F",darkorange:"#FF8C00",darkorchid:"#9932CC",darkred:"#8B0000",darksalmon:"#E9967A",darkseagreen:"#8FBC8F",darkslateblue:"#483D8B",darkslategray:"#2F4F4F",darkslategrey:"#2F4F4F",darkturquoise:"#00CED1",darkviolet:"#9400D3",deeppink:"#FF1493",deepskyblue:"#00BFFF",dimgray:"#696969",dimgrey:"#696969",dodgerblue:"#1E90FF",firebrick:"#B22222",floralwhite:"#FFFAF0",forestgreen:"#228B22",fuchsia:"#FF00FF",gainsboro:"#DCDCDC",ghostwhite:"#F8F8FF",gold:"#FFD700",goldenrod:"#DAA520",gray:"#808080",grey:"#808080",green:"#008000",greenyellow:"#ADFF2F",honeydew:"#F0FFF0",hotpink:"#FF69B4",indianred:"#CD5C5C",indigo:"#4B0082",ivory:"#FFFFF0",khaki:"#F0E68C",lavender:"#E6E6FA",lavenderblush:"#FFF0F5",lawngreen:"#7CFC00",lemonchiffon:"#FFFACD",lightblue:"#ADD8E6",lightcoral:"#F08080",lightcyan:"#E0FFFF",lightgoldenrodyellow:"#FAFAD2",lightgray:"#D3D3D3",lightgrey:"#D3D3D3",lightgreen:"#90EE90",lightpink:"#FFB6C1",lightsalmon:"#FFA07A",lightseagreen:"#20B2AA",lightskyblue:"#87CEFA",lightslategray:"#778899",lightslategrey:"#778899",lightsteelblue:"#B0C4DE",lightyellow:"#FFFFE0",lime:"#00FF00",limegreen:"#32CD32",linen:"#FAF0E6",magenta:"#FF00FF",maroon:"#800000",mediumaquamarine:"#66CDAA",mediumblue:"#0000CD",mediumorchid:"#BA55D3",mediumpurple:"#9370DB",mediumseagreen:"#3CB371",mediumslateblue:"#7B68EE",mediumspringgreen:"#00FA9A",mediumturquoise:"#48D1CC",mediumvioletred:"#C71585",midnightblue:"#191970",mintcream:"#F5FFFA",mistyrose:"#FFE4E1",moccasin:"#FFE4B5",navajowhite:"#FFDEAD",navy:"#000080",oldlace:"#FDF5E6",olive:"#808000",olivedrab:"#6B8E23",orange:"#FFA500",orangered:"#FF4500",orchid:"#DA70D6",palegoldenrod:"#EEE8AA",palegreen:"#98FB98",paleturquoise:"#AFEEEE",palevioletred:"#DB7093",papayawhip:"#FFEFD5",peachpuff:"#FFDAB9",peru:"#CD853F",pink:"#FFC0CB",plum:"#DDA0DD",powderblue:"#B0E0E6",purple:"#800080",rebeccapurple:"#663399",red:"#FF0000",rosybrown:"#BC8F8F",royalblue:"#4169E1",saddlebrown:"#8B4513",salmon:"#FA8072",sandybrown:"#F4A460",seagreen:"#2E8B57",seashell:"#FFF5EE",sienna:"#A0522D",silver:"#C0C0C0",skyblue:"#87CEEB",slateblue:"#6A5ACD",slategray:"#708090",slategrey:"#708090",snow:"#FFFAFA",springgreen:"#00FF7F",steelblue:"#4682B4",tan:"#D2B48C",teal:"#008080",thistle:"#D8BFD8",tomato:"#FF6347",turquoise:"#40E0D0",violet:"#EE82EE",wheat:"#F5DEB3",white:"#FFFFFF",whitesmoke:"#F5F5F5",yellow:"#FFFF00",yellowgreen:"#9ACD32"},h.Color.fromRgb=function(t){return a.fromSource(a.sourceFromRgb(t))},h.Color.sourceFromRgb=function(t){var e=t.match(a.reRGBa);if(e){var i=parseInt(e[1],10)/(/%$/.test(e[1])?100:1)*(/%$/.test(e[1])?255:1),r=parseInt(e[2],10)/(/%$/.test(e[2])?100:1)*(/%$/.test(e[2])?255:1),t=parseInt(e[3],10)/(/%$/.test(e[3])?100:1)*(/%$/.test(e[3])?255:1);return[parseInt(i,10),parseInt(r,10),parseInt(t,10),e[4]?parseFloat(e[4]):1]}},h.Color.fromRgba=a.fromRgb,h.Color.fromHsl=function(t){return a.fromSource(a.sourceFromHsl(t))},h.Color.sourceFromHsl=function(t){var e=t.match(a.reHSLa);if(e){var i,r,n,s=(parseFloat(e[1])%360+360)%360/360,o=parseFloat(e[2])/(/%$/.test(e[2])?100:1),t=parseFloat(e[3])/(/%$/.test(e[3])?100:1);return 0==o?i=r=n=t:(i=c(o=2*t-(t=t<=.5?t*(1+o):t+o-t*o),t,s+1/3),r=c(o,t,s),n=c(o,t,s-1/3)),[Math.round(255*i),Math.round(255*r),Math.round(255*n),e[4]?parseFloat(e[4]):1]}},h.Color.fromHsla=a.fromHsl,h.Color.fromHex=function(t){return a.fromSource(a.sourceFromHex(t))},h.Color.sourceFromHex=function(t){if(t.match(a.reHex)){var e=t.slice(t.indexOf("#")+1),i=3===e.length||4===e.length,r=8===e.length||4===e.length,n=i?e.charAt(0)+e.charAt(0):e.substring(0,2),s=i?e.charAt(1)+e.charAt(1):e.substring(2,4),t=i?e.charAt(2)+e.charAt(2):e.substring(4,6),e=r?i?e.charAt(3)+e.charAt(3):e.substring(6,8):"FF";return[parseInt(n,16),parseInt(s,16),parseInt(t,16),parseFloat((parseInt(e,16)/255).toFixed(2))]}},h.Color.fromSource=function(t){var e=new a;return e.setSource(t),e})}("undefined"!=typeof exports?exports:this),function(t){"use strict";var a=t.fabric||(t.fabric={}),n=["e","se","s","sw","w","nw","n","ne","e"],s=["ns","nesw","ew","nwse"],o={},c="left",h="top",l="right",u="bottom",f="center",d={top:u,bottom:h,left:l,right:c,center:f},g=a.util.radiansToDegrees,p=Math.sign||function(t){return(0<t)-(t<0)||+t};function m(t,e){e=t.angle+g(Math.atan2(e.y,e.x))+360;return Math.round(e%360/45)}function v(t,e){var i=e.transform.target,r=i.canvas,n=a.util.object.clone(e);n.target=i,r&&r.fire("object:"+t,n),i.fire(t,e)}function b(t,e){e=e.canvas,t=t[e.uniScaleKey];return e.uniformScaling&&!t||!e.uniformScaling&&t}function y(t){return t.originX===f&&t.originY===f}function _(t,e,i){var r=t.lockScalingX,t=t.lockScalingY;return!(!r||!t)||(!(e||!r&&!t||!i)||(!(!r||"x"!==e)||!(!t||"y"!==e)))}function x(t,e,i,r){return{e:t,transform:e,pointer:{x:i,y:r}}}function C(o){return function(t,e,i,r){var n=e.target,s=n.getCenterPoint(),s=n.translateToOriginPoint(s,e.originX,e.originY),r=o(t,e,i,r);return n.setPositionByOrigin(s,e.originX,e.originY),r}}function S(s,o){return function(t,e,i,r){var n=o(t,e,i,r);return n&&v(s,x(t,e,i,r)),n}}function T(t,e,i,r,n){var s=t.target,o=s.controls[t.corner],t=s.canvas.getZoom(),t=s.padding/t,i=s.toLocalPoint(new a.Point(r,n),e,i);return i.x>=t&&(i.x-=t),i.x<=-t&&(i.x+=t),i.y>=t&&(i.y-=t),i.y<=t&&(i.y+=t),i.x-=o.offsetX,i.y-=o.offsetY,i}function w(t){return t.flipX!==t.flipY}function O(t,e,i,r,n){0!==t[e]&&(r=n/t._getTransformedDimensions()[r]*t[i],t.set(i,r))}function k(t,e,i,r){var n,s=e.target,o=s._getTransformedDimensions(0,s.skewY),i=T(e,e.originX,e.originY,i,r),r=Math.abs(2*i.x)-o.x,i=s.skewX;r<2?n=0:(n=g(Math.atan2(r/s.scaleX,o.y/s.scaleY)),e.originX===c&&e.originY===u&&(n=-n),e.originX===l&&e.originY===h&&(n=-n),w(s)&&(n=-n));e=i!==n;return e&&(i=s._getTransformedDimensions().y,s.set("skewX",n),O(s,"skewY","scaleY","y",i)),e}function P(t,e,i,r){var n,s=e.target,o=s._getTransformedDimensions(s.skewX,0),i=T(e,e.originX,e.originY,i,r),r=Math.abs(2*i.y)-o.y,i=s.skewY;r<2?n=0:(n=g(Math.atan2(r/s.scaleY,o.x/s.scaleX)),e.originX===c&&e.originY===u&&(n=-n),e.originX===l&&e.originY===h&&(n=-n),w(s)&&(n=-n));e=i!==n;return e&&(i=s._getTransformedDimensions().x,s.set("skewY",n),O(s,"skewX","scaleX","x",i)),e}function E(t,e,i,r,n){var s=e.target,o=s.lockScalingX,a=s.lockScalingY,c=(n=n||{}).by,h=b(t,s),n=_(s,c,h),t=e.gestureScale;if(n)return!1;if(t)l=e.scaleX*t,u=e.scaleY*t;else{if(n=T(e,e.originX,e.originY,i,r),t="y"!==c?p(n.x):1,f="x"!==c?p(n.y):1,e.signX||(e.signX=t),e.signY||(e.signY=f),s.lockScalingFlip&&(e.signX!==t||e.signY!==f))return!1;var l,u,i=s._getTransformedDimensions();u=h&&!c?(r=Math.abs(n.x)+Math.abs(n.y),h=e.original,r=r/(Math.abs(i.x*h.scaleX/s.scaleX)+Math.abs(i.y*h.scaleY/s.scaleY)),l=h.scaleX*r,h.scaleY*r):(l=Math.abs(n.x*s.scaleX/i.x),Math.abs(n.y*s.scaleY/i.y)),y(e)&&(l*=2,u*=2),e.signX!==t&&"y"!==c&&(e.originX=d[e.originX],l*=-1,e.signX=t),e.signY!==f&&"x"!==c&&(e.originY=d[e.originY],u*=-1,e.signY=f)}var e=s.scaleX,f=s.scaleY;return c?("x"===c&&s.set("scaleX",l),"y"===c&&s.set("scaleY",u)):(o||s.set("scaleX",l),a||s.set("scaleY",u)),e!==s.scaleX||f!==s.scaleY}o.scaleCursorStyleHandler=function(t,e,i){var r=b(t,i),t="";return 0!==e.x&&0===e.y?t="x":0===e.x&&0!==e.y&&(t="y"),_(i,t,r)?"not-allowed":(e=m(i,e),n[e]+"-resize")},o.skewCursorStyleHandler=function(t,e,i){var r="not-allowed";return 0!==e.x&&i.lockSkewingY||0!==e.y&&i.lockSkewingX?r:(e=m(i,e)%4,s[e]+"-resize")},o.scaleSkewCursorStyleHandler=function(t,e,i){return t[i.canvas.altActionKey]?o.skewCursorStyleHandler(t,e,i):o.scaleCursorStyleHandler(t,e,i)},o.rotationWithSnapping=S("rotating",C(function(t,e,i,r){var n=e,s=n.target,o=s.translateToOriginPoint(s.getCenterPoint(),n.originX,n.originY);return!s.lockRotation&&(e=Math.atan2(n.ey-o.y,n.ex-o.x),r=Math.atan2(r-o.y,i-o.x),i=g(r-e+n.theta),0<s.snapAngle&&(r=s.snapAngle,e=s.snapThreshold||r,n=Math.ceil(i/r)*r,r=Math.floor(i/r)*r,Math.abs(i-r)<e?i=r:Math.abs(i-n)<e&&(i=n)),i<0&&(i=360+i),o=s.angle!==(i%=360),s.angle=i,o)})),o.scalingEqually=S("scaling",C(function(t,e,i,r){return E(t,e,i,r)})),o.scalingX=S("scaling",C(function(t,e,i,r){return E(t,e,i,r,{by:"x"})})),o.scalingY=S("scaling",C(function(t,e,i,r){return E(t,e,i,r,{by:"y"})})),o.scalingYOrSkewingX=function(t,e,i,r){return t[e.target.canvas.altActionKey]?o.skewHandlerX(t,e,i,r):o.scalingY(t,e,i,r)},o.scalingXOrSkewingY=function(t,e,i,r){return t[e.target.canvas.altActionKey]?o.skewHandlerY(t,e,i,r):o.scalingX(t,e,i,r)},o.changeWidth=S("resizing",C(function(t,e,i,r){var n=e.target,s=T(e,e.originX,e.originY,i,r),i=n.strokeWidth/(n.strokeUniform?n.scaleX:1),r=y(e)?2:1,e=n.width,i=Math.abs(s.x*r/n.scaleX)-i;return n.set("width",Math.max(i,0)),e!==i})),o.skewHandlerX=function(t,e,i,r){var n,s=e.target,o=s.skewX,a=e.originY;return!s.lockSkewingX&&(0===o?n=0<T(e,f,f,i,r).x?c:l:(0<o&&(n=a===h?c:l),o<0&&(n=a===h?l:c),w(s)&&(n=n===c?l:c)),e.originX=n,S("skewing",C(k))(t,e,i,r))},o.skewHandlerY=function(t,e,i,r){var n,s=e.target,o=s.skewY,a=e.originX;return!s.lockSkewingY&&(0===o?n=0<T(e,f,f,i,r).y?h:u:(0<o&&(n=a===c?h:u),o<0&&(n=a===c?u:h),w(s)&&(n=n===h?u:h)),e.originY=n,S("skewing",C(P))(t,e,i,r))},o.dragHandler=function(t,e,i,r){var n=e.target,s=i-e.offsetX,o=r-e.offsetY,a=!n.get("lockMovementX")&&n.left!==s,c=!n.get("lockMovementY")&&n.top!==o;return a&&n.set("left",s),c&&n.set("top",o),(a||c)&&v("moving",x(t,e,i,r)),a||c},o.scaleOrSkewActionName=function(t,e,i){return i=t[i.canvas.altActionKey],0===e.x?i?"skewX":"scaleY":0===e.y?i?"skewY":"scaleX":void 0},o.rotationStyleHandler=function(t,e,i){return i.lockRotation?"not-allowed":e.cursorStyle},o.fireEvent=v,o.wrapWithFixedAnchor=C,o.wrapWithFireEvent=S,o.getLocalPoint=T,a.controlsUtils=o}("undefined"!=typeof exports?exports:this),function(t){"use strict";var t=t.fabric||(t.fabric={}),u=t.util.degreesToRadians,t=t.controlsUtils;t.renderCircleControl=function(t,e,i,r,n){r=r||{};var s,o=this.sizeX||r.cornerSize||n.cornerSize,a=this.sizeY||r.cornerSize||n.cornerSize,c=(u=(void 0!==r.transparentCorners?r:n).transparentCorners)?"stroke":"fill",h=!u&&(r.cornerStrokeColor||n.cornerStrokeColor),l=e,u=i;t.save(),t.fillStyle=r.cornerColor||n.cornerColor,t.strokeStyle=r.cornerStrokeColor||n.cornerStrokeColor,a<o?(t.scale(1,a/(s=o)),u=i*o/a):o<a?(t.scale(o/(s=a),1),l=e*a/o):s=o,t.lineWidth=1,t.beginPath(),t.arc(l,u,s/2,0,2*Math.PI,!1),t[c](),h&&t.stroke(),t.restore()},t.renderSquareControl=function(t,e,i,r,n){r=r||{};var s=this.sizeX||r.cornerSize||n.cornerSize,o=this.sizeY||r.cornerSize||n.cornerSize,a=(l=(void 0!==r.transparentCorners?r:n).transparentCorners)?"stroke":"fill",c=!l&&(r.cornerStrokeColor||n.cornerStrokeColor),h=s/2,l=o/2;t.save(),t.fillStyle=r.cornerColor||n.cornerColor,t.strokeStyle=r.cornerStrokeColor||n.cornerStrokeColor,t.lineWidth=1,t.translate(e,i),t.rotate(u(n.angle)),t[a+"Rect"](-h,-l,s,o),c&&t.strokeRect(-h,-l,s,o),t.restore()}}("undefined"!=typeof exports?exports:this),function(t){"use strict";var f=t.fabric||(t.fabric={});f.Control=function(t){for(var e in t)this[e]=t[e]},f.Control.prototype={visible:!0,actionName:"scale",angle:0,x:0,y:0,offsetX:0,offsetY:0,sizeX:null,sizeY:null,touchSizeX:null,touchSizeY:null,cursorStyle:"crosshair",withConnection:!1,actionHandler:function(){},mouseDownHandler:function(){},mouseUpHandler:function(){},getActionHandler:function(){return this.actionHandler},getMouseDownHandler:function(){return this.mouseDownHandler},getMouseUpHandler:function(){return this.mouseUpHandler},cursorStyleHandler:function(t,e){return e.cursorStyle},getActionName:function(t,e){return e.actionName},getVisibility:function(t,e){t=t._controlsVisibility;return t&&void 0!==t[e]?t[e]:this.visible},setVisibility:function(t){this.visible=t},positionHandler:function(t,e){return f.util.transformPoint({x:this.x*t.x+this.offsetX,y:this.y*t.y+this.offsetY},e)},calcCornerCoords:function(t,e,i,r,n){var s,o,a,c,h,l,u=n?this.touchSizeX:this.sizeX,n=n?this.touchSizeY:this.sizeY;return u&&n&&u!==n?(a=Math.atan2(n,u),h=Math.sqrt(u*u+n*n)/2,l=a-f.util.degreesToRadians(t),c=Math.PI/2-a-f.util.degreesToRadians(t),s=h*f.util.cos(l),o=h*f.util.sin(l),a=h*f.util.cos(c),c=h*f.util.sin(c)):(h=.7071067812*(u&&n?u:e),l=f.util.degreesToRadians(45-t),s=a=h*f.util.cos(l),o=c=h*f.util.sin(l)),{tl:{x:i-c,y:r-a},tr:{x:i+s,y:r-o},bl:{x:i-s,y:r+o},br:{x:i+c,y:r+a}}},render:function(t,e,i,r,n){("circle"===((r=r||{}).cornerStyle||n.cornerStyle)?f.controlsUtils.renderCircleControl:f.controlsUtils.renderSquareControl).call(this,t,e,i,r,n)}}}("undefined"!=typeof exports?exports:this),function(){var p=fabric.util.object.clone;fabric.Gradient=fabric.util.createClass({offsetX:0,offsetY:0,gradientTransform:null,gradientUnits:"pixels",type:"linear",initialize:function(e){(e=e||{}).coords||(e.coords={});var t,i=this;Object.keys(e).forEach(function(t){i[t]=e[t]}),this.id?this.id+="_"+fabric.Object.__uid++:this.id=fabric.Object.__uid++,t={x1:e.coords.x1||0,y1:e.coords.y1||0,x2:e.coords.x2||0,y2:e.coords.y2||0},"radial"===this.type&&(t.r1=e.coords.r1||0,t.r2=e.coords.r2||0),this.coords=t,this.colorStops=e.colorStops.slice()},addColorStop:function(t){for(var e in t){var i=new fabric.Color(t[e]);this.colorStops.push({offset:parseFloat(e),color:i.toRgb(),opacity:i.getAlpha()})}return this},toObject:function(t){var e={type:this.type,coords:this.coords,colorStops:this.colorStops,offsetX:this.offsetX,offsetY:this.offsetY,gradientUnits:this.gradientUnits,gradientTransform:this.gradientTransform&&this.gradientTransform.concat()};return fabric.util.populateWithProperties(this,e,t),e},toSVG:function(t,e){var i,r=p(this.coords,!0),e=e||{},n=p(this.colorStops,!0),s=r.r1>r.r2,o=(this.gradientTransform||fabric.iMatrix).concat(),a=-this.offsetX,c=-this.offsetY,h=!!e.additionalTransform,l="pixels"===this.gradientUnits?"userSpaceOnUse":"objectBoundingBox";if(n.sort(function(t,e){return t.offset-e.offset}),"objectBoundingBox"==l?(a/=t.width,c/=t.height):(a+=t.width/2,c+=t.height/2),"path"===t.type&&"percentage"!==this.gradientUnits&&(a-=t.pathOffset.x,c-=t.pathOffset.y),o[4]-=a,o[5]-=c,l='id="SVGID_'+this.id+'" gradientUnits="'+l+'"',l+=' gradientTransform="'+(h?e.additionalTransform+" ":"")+fabric.util.matrixToSVG(o)+'" ',"linear"===this.type?i=["<linearGradient ",l,' x1="',r.x1,'" y1="',r.y1,'" x2="',r.x2,'" y2="',r.y2,'">\n']:"radial"===this.type&&(i=["<radialGradient ",l,' cx="',s?r.x1:r.x2,'" cy="',s?r.y1:r.y2,'" r="',s?r.r1:r.r2,'" fx="',s?r.x2:r.x1,'" fy="',s?r.y2:r.y1,'">\n']),"radial"===this.type){if(s)for((n=n.concat()).reverse(),f=0,d=n.length;f<d;f++)n[f].offset=1-n[f].offset;s=Math.min(r.r1,r.r2);if(0<s)for(var u=s/Math.max(r.r1,r.r2),f=0,d=n.length;f<d;f++)n[f].offset+=u*(1-n[f].offset)}for(f=0,d=n.length;f<d;f++){var g=n[f];i.push("<stop ",'offset="',100*g.offset+"%",'" style="stop-color:',g.color,void 0!==g.opacity?";stop-opacity: "+g.opacity:";",'"/>\n')}return i.push("linear"===this.type?"</linearGradient>\n":"</radialGradient>\n"),i.join("")},toLive:function(t){var e,i,r,n=fabric.util.object.clone(this.coords);if(this.type){for("linear"===this.type?e=t.createLinearGradient(n.x1,n.y1,n.x2,n.y2):"radial"===this.type&&(e=t.createRadialGradient(n.x1,n.y1,n.r1,n.x2,n.y2,n.r2)),i=0,r=this.colorStops.length;i<r;i++){var s=this.colorStops[i].color,o=this.colorStops[i].opacity,a=this.colorStops[i].offset;void 0!==o&&(s=new fabric.Color(s).setAlpha(o).toRgba()),e.addColorStop(a,s)}return e}}}),fabric.util.object.extend(fabric.Gradient,{fromElement:function(t,e,i,r){var n=(n=parseFloat(i)/(/%$/.test(i)?100:1))<0?0:1<n?1:n;isNaN(n)&&(n=1);for(var s,o,a,c,h,l,u=t.getElementsByTagName("stop"),f="userSpaceOnUse"===t.getAttribute("gradientUnits")?"pixels":"percentage",d=t.getAttribute("gradientTransform")||"",g=[],p=0,m=0,v="linearGradient"===t.nodeName||"LINEARGRADIENT"===t.nodeName?(s="linear",{x1:(i=t).getAttribute("x1")||0,y1:i.getAttribute("y1")||0,x2:i.getAttribute("x2")||"100%",y2:i.getAttribute("y2")||0}):(s="radial",{x1:(v=t).getAttribute("fx")||v.getAttribute("cx")||"50%",y1:v.getAttribute("fy")||v.getAttribute("cy")||"50%",r1:0,x2:v.getAttribute("cx")||"50%",y2:v.getAttribute("cy")||"50%",r2:v.getAttribute("r")||"50%"}),b=u.length;b--;)g.push(function(t,e){var i,r,n,s=t.getAttribute("style"),o=t.getAttribute("offset")||0;if(o=(o=parseFloat(o)/(/%$/.test(o)?100:1))<0?0:1<o?1:o,s){var a=s.split(/\s*;\s*/);for(""===a[a.length-1]&&a.pop(),n=a.length;n--;){var c=a[n].split(/\s*:\s*/),h=c[0].trim(),c=c[1].trim();"stop-color"===h?i=c:"stop-opacity"===h&&(r=c)}}return i=i||(t.getAttribute("stop-color")||"rgb(0,0,0)"),r=r||t.getAttribute("stop-opacity"),t=(i=new fabric.Color(i)).getAlpha(),r=isNaN(parseFloat(r))?1:parseFloat(r),r*=t*e,{offset:o,color:i.toRgb(),opacity:r}}(u[b],n));return d=fabric.parseTransformAttribute(d),o=v,a=r,c=f,Object.keys(o).forEach(function(t){"Infinity"===(h=o[t])?l=1:"-Infinity"===h?l=0:(l=parseFloat(o[t],10),"string"==typeof h&&/^(\d+\.\d+)%|(\d+)%$/.test(h)&&(l*=.01,"pixels"===c&&("x1"!==t&&"x2"!==t&&"r2"!==t||(l*=a.viewBoxWidth||a.width),"y1"!==t&&"y2"!==t||(l*=a.viewBoxHeight||a.height)))),o[t]=l}),"pixels"==f&&(p=-e.left,m=-e.top),new fabric.Gradient({id:t.getAttribute("id"),type:s,coords:v,colorStops:g,gradientUnits:f,gradientTransform:d,offsetX:p,offsetY:m})}})}(),function(){"use strict";var r=fabric.util.toFixed;fabric.Pattern=fabric.util.createClass({repeat:"repeat",offsetX:0,offsetY:0,crossOrigin:"",patternTransform:null,initialize:function(t,i){var r;t=t||{},this.id=fabric.Object.__uid++,this.setOptions(t),!t.source||t.source&&"string"!=typeof t.source?i&&i(this):((r=this).source=fabric.util.createImage(),fabric.util.loadImage(t.source,function(t,e){r.source=t,i&&i(r,e)},null,this.crossOrigin))},toObject:function(t){var e,i=fabric.Object.NUM_FRACTION_DIGITS;return"string"==typeof this.source.src?e=this.source.src:"object"==typeof this.source&&this.source.toDataURL&&(e=this.source.toDataURL()),i={type:"pattern",source:e,repeat:this.repeat,crossOrigin:this.crossOrigin,offsetX:r(this.offsetX,i),offsetY:r(this.offsetY,i),patternTransform:this.patternTransform?this.patternTransform.concat():null},fabric.util.populateWithProperties(this,i,t),i},toSVG:function(t){var e="function"==typeof this.source?this.source():this.source,i=e.width/t.width,r=e.height/t.height,n=this.offsetX/t.width,s=this.offsetY/t.height,t="";return"repeat-x"!==this.repeat&&"no-repeat"!==this.repeat||(r=1,s&&(r+=Math.abs(s))),"repeat-y"!==this.repeat&&"no-repeat"!==this.repeat||(i=1,n&&(i+=Math.abs(n))),e.src?t=e.src:e.toDataURL&&(t=e.toDataURL()),'<pattern id="SVGID_'+this.id+'" x="'+n+'" y="'+s+'" width="'+i+'" height="'+r+'">\n<image x="0" y="0" width="'+e.width+'" height="'+e.height+'" xlink:href="'+t+'"></image>\n</pattern>\n'},setOptions:function(t){for(var e in t)this[e]=t[e]},toLive:function(t){var e=this.source;if(!e)return"";if(void 0!==e.src){if(!e.complete)return"";if(0===e.naturalWidth||0===e.naturalHeight)return""}return t.createPattern(e,this.repeat)}})}(),function(t){"use strict";var o=t.fabric||(t.fabric={}),a=o.util.toFixed;o.Shadow?o.warn("fabric.Shadow is already defined."):(o.Shadow=o.util.createClass({color:"rgb(0,0,0)",blur:0,offsetX:0,offsetY:0,affectStroke:!1,includeDefaultValues:!0,nonScaling:!1,initialize:function(t){for(var e in t="string"==typeof t?this._parseShadow(t):t)this[e]=t[e];this.id=o.Object.__uid++},_parseShadow:function(t){var e=t.trim(),t=o.Shadow.reOffsetsAndBlur.exec(e)||[];return{color:(e.replace(o.Shadow.reOffsetsAndBlur,"")||"rgb(0,0,0)").trim(),offsetX:parseFloat(t[1],10)||0,offsetY:parseFloat(t[2],10)||0,blur:parseFloat(t[3],10)||0}},toString:function(){return[this.offsetX,this.offsetY,this.blur,this.color].join("px ")},toSVG:function(t){var e=40,i=40,r=o.Object.NUM_FRACTION_DIGITS,n=o.util.rotateVector({x:this.offsetX,y:this.offsetY},o.util.degreesToRadians(-t.angle)),s=new o.Color(this.color);return t.width&&t.height&&(e=100*a((Math.abs(n.x)+this.blur)/t.width,r)+20,i=100*a((Math.abs(n.y)+this.blur)/t.height,r)+20),t.flipX&&(n.x*=-1),t.flipY&&(n.y*=-1),'<filter id="SVGID_'+this.id+'" y="-'+i+'%" height="'+(100+2*i)+'%" x="-'+e+'%" width="'+(100+2*e)+'%" >\n\t<feGaussianBlur in="SourceAlpha" stdDeviation="'+a(this.blur?this.blur/2:0,r)+'"></feGaussianBlur>\n\t<feOffset dx="'+a(n.x,r)+'" dy="'+a(n.y,r)+'" result="oBlur" ></feOffset>\n\t<feFlood flood-color="'+s.toRgb()+'" flood-opacity="'+s.getAlpha()+'"/>\n\t<feComposite in2="oBlur" operator="in" />\n\t<feMerge>\n\t\t<feMergeNode></feMergeNode>\n\t\t<feMergeNode in="SourceGraphic"></feMergeNode>\n\t</feMerge>\n</filter>\n'},toObject:function(){if(this.includeDefaultValues)return{color:this.color,blur:this.blur,offsetX:this.offsetX,offsetY:this.offsetY,affectStroke:this.affectStroke,nonScaling:this.nonScaling};var e={},i=o.Shadow.prototype;return["color","blur","offsetX","offsetY","affectStroke","nonScaling"].forEach(function(t){this[t]!==i[t]&&(e[t]=this[t])},this),e}}),o.Shadow.reOffsetsAndBlur=/(?:\s|^)(-?\d+(?:\.\d*)?(?:px)?(?:\s?|$))?(-?\d+(?:\.\d*)?(?:px)?(?:\s?|$))?(\d+(?:\.\d*)?(?:px)?)?(?:\s?|$)(?:$|\s)/)}("undefined"!=typeof exports?exports:this),function(){"use strict";var n,t,h,a,s,o,i,r,e;fabric.StaticCanvas?fabric.warn("fabric.StaticCanvas is already defined."):(n=fabric.util.object.extend,t=fabric.util.getElementOffset,h=fabric.util.removeFromArray,a=fabric.util.toFixed,s=fabric.util.transformPoint,o=fabric.util.invertTransform,i=fabric.util.getNodeCanvas,r=fabric.util.createCanvasElement,e=new Error("Could not initialize `canvas` element"),fabric.StaticCanvas=fabric.util.createClass(fabric.CommonMethods,{initialize:function(t,e){e=e||{},this.renderAndResetBound=this.renderAndReset.bind(this),this.requestRenderAllBound=this.requestRenderAll.bind(this),this._initStatic(t,e)},backgroundColor:"",backgroundImage:null,overlayColor:"",overlayImage:null,includeDefaultValues:!0,stateful:!1,renderOnAddRemove:!0,controlsAboveOverlay:!1,allowTouchScrolling:!1,imageSmoothingEnabled:!0,viewportTransform:fabric.iMatrix.concat(),backgroundVpt:!0,overlayVpt:!0,enableRetinaScaling:!0,vptCoords:{},skipOffscreen:!0,clipPath:void 0,_initStatic:function(t,e){var i=this.requestRenderAllBound;this._objects=[],this._createLowerCanvas(t),this._initOptions(e),this.interactive||this._initRetinaScaling(),e.overlayImage&&this.setOverlayImage(e.overlayImage,i),e.backgroundImage&&this.setBackgroundImage(e.backgroundImage,i),e.backgroundColor&&this.setBackgroundColor(e.backgroundColor,i),e.overlayColor&&this.setOverlayColor(e.overlayColor,i),this.calcOffset()},_isRetinaScaling:function(){return 1!==fabric.devicePixelRatio&&this.enableRetinaScaling},getRetinaScaling:function(){return this._isRetinaScaling()?fabric.devicePixelRatio:1},_initRetinaScaling:function(){var t;this._isRetinaScaling()&&(t=fabric.devicePixelRatio,this.__initRetinaScaling(t,this.lowerCanvasEl,this.contextContainer),this.upperCanvasEl&&this.__initRetinaScaling(t,this.upperCanvasEl,this.contextTop))},__initRetinaScaling:function(t,e,i){e.setAttribute("width",this.width*t),e.setAttribute("height",this.height*t),i.scale(t,t)},calcOffset:function(){return this._offset=t(this.lowerCanvasEl),this},setOverlayImage:function(t,e,i){return this.__setBgOverlayImage("overlayImage",t,e,i)},setBackgroundImage:function(t,e,i){return this.__setBgOverlayImage("backgroundImage",t,e,i)},setOverlayColor:function(t,e){return this.__setBgOverlayColor("overlayColor",t,e)},setBackgroundColor:function(t,e){return this.__setBgOverlayColor("backgroundColor",t,e)},__setBgOverlayImage:function(r,t,n,s){return"string"==typeof t?fabric.util.loadImage(t,function(t,e){var i;t&&(i=new fabric.Image(t,s),(this[r]=i).canvas=this),n&&n(t,e)},this,s&&s.crossOrigin):(s&&t.setOptions(s),(this[r]=t)&&(t.canvas=this),n&&n(t,!1)),this},__setBgOverlayColor:function(t,e,i){return this[t]=e,this._initGradient(e,t),this._initPattern(e,t,i),this},_createCanvasElement:function(){var t=r();if(!t)throw e;if(t.style||(t.style={}),void 0===t.getContext)throw e;return t},_initOptions:function(t){var e=this.lowerCanvasEl;this._setOptions(t),this.width=this.width||parseInt(e.width,10)||0,this.height=this.height||parseInt(e.height,10)||0,this.lowerCanvasEl.style&&(e.width=this.width,e.height=this.height,e.style.width=this.width+"px",e.style.height=this.height+"px",this.viewportTransform=this.viewportTransform.slice())},_createLowerCanvas:function(t){t&&t.getContext?this.lowerCanvasEl=t:this.lowerCanvasEl=fabric.util.getById(t)||this._createCanvasElement(),fabric.util.addClass(this.lowerCanvasEl,"lower-canvas"),this._originalCanvasStyle=this.lowerCanvasEl.style,this.interactive&&this._applyCanvasStyle(this.lowerCanvasEl),this.contextContainer=this.lowerCanvasEl.getContext("2d")},getWidth:function(){return this.width},getHeight:function(){return this.height},setWidth:function(t,e){return this.setDimensions({width:t},e)},setHeight:function(t,e){return this.setDimensions({height:t},e)},setDimensions:function(t,e){var i,r;for(r in e=e||{},t)i=t[r],e.cssOnly||(this._setBackstoreDimension(r,t[r]),i+="px",this.hasLostContext=!0),e.backstoreOnly||this._setCssDimension(r,i);return this._isCurrentlyDrawing&&this.freeDrawingBrush&&this.freeDrawingBrush._setBrushStyles(),this._initRetinaScaling(),this.calcOffset(),e.cssOnly||this.requestRenderAll(),this},_setBackstoreDimension:function(t,e){return this.lowerCanvasEl[t]=e,this.upperCanvasEl&&(this.upperCanvasEl[t]=e),this.cacheCanvasEl&&(this.cacheCanvasEl[t]=e),this[t]=e,this},_setCssDimension:function(t,e){return this.lowerCanvasEl.style[t]=e,this.upperCanvasEl&&(this.upperCanvasEl.style[t]=e),this.wrapperEl&&(this.wrapperEl.style[t]=e),this},getZoom:function(){return this.viewportTransform[0]},setViewportTransform:function(t){var e,i,r,n=this._activeObject,s=this.backgroundImage,o=this.overlayImage;for(this.viewportTransform=t,i=0,r=this._objects.length;i<r;i++)(e=this._objects[i]).group||e.setCoords(!0);return n&&n.setCoords(),s&&s.setCoords(!0),o&&o.setCoords(!0),this.calcViewportBoundaries(),this.renderOnAddRemove&&this.requestRenderAll(),this},zoomToPoint:function(t,e){var i=t,r=this.viewportTransform.slice(0);t=s(t,o(this.viewportTransform)),r[0]=e,r[3]=e;t=s(t,r);return r[4]+=i.x-t.x,r[5]+=i.y-t.y,this.setViewportTransform(r)},setZoom:function(t){return this.zoomToPoint(new fabric.Point(0,0),t),this},absolutePan:function(t){var e=this.viewportTransform.slice(0);return e[4]=-t.x,e[5]=-t.y,this.setViewportTransform(e)},relativePan:function(t){return this.absolutePan(new fabric.Point(-t.x-this.viewportTransform[4],-t.y-this.viewportTransform[5]))},getElement:function(){return this.lowerCanvasEl},_onObjectAdded:function(t){this.stateful&&t.setupState(),t._set("canvas",this),t.setCoords(),this.fire("object:added",{target:t}),t.fire("added")},_onObjectRemoved:function(t){this.fire("object:removed",{target:t}),t.fire("removed"),delete t.canvas},clearContext:function(t){return t.clearRect(0,0,this.width,this.height),this},getContext:function(){return this.contextContainer},clear:function(){return this.remove.apply(this,this.getObjects()),this.backgroundImage=null,this.overlayImage=null,this.backgroundColor="",this.overlayColor="",this._hasITextHandlers&&(this.off("mouse:up",this._mouseUpITextHandler),this._iTextInstances=null,this._hasITextHandlers=!1),this.clearContext(this.contextContainer),this.fire("canvas:cleared"),this.renderOnAddRemove&&this.requestRenderAll(),this},renderAll:function(){var t=this.contextContainer;return this.renderCanvas(t,this._objects),this},renderAndReset:function(){this.isRendering=0,this.renderAll()},requestRenderAll:function(){return this.isRendering||(this.isRendering=fabric.util.requestAnimFrame(this.renderAndResetBound)),this},calcViewportBoundaries:function(){var t={},e=this.width,i=this.height,r=o(this.viewportTransform);return t.tl=s({x:0,y:0},r),t.br=s({x:e,y:i},r),t.tr=new fabric.Point(t.br.x,t.tl.y),t.bl=new fabric.Point(t.tl.x,t.br.y),this.vptCoords=t},cancelRequestedRender:function(){this.isRendering&&(fabric.util.cancelAnimFrame(this.isRendering),this.isRendering=0)},renderCanvas:function(t,e){var i=this.viewportTransform,r=this.clipPath;this.cancelRequestedRender(),this.calcViewportBoundaries(),this.clearContext(t),fabric.util.setImageSmoothing(t,this.imageSmoothingEnabled),this.fire("before:render",{ctx:t}),this._renderBackground(t),t.save(),t.transform(i[0],i[1],i[2],i[3],i[4],i[5]),this._renderObjects(t,e),t.restore(),!this.controlsAboveOverlay&&this.interactive&&this.drawControls(t),r&&(r.canvas=this,r.shouldCache(),r._transformDone=!0,r.renderCache({forClipping:!0}),this.drawClipPathOnCanvas(t)),this._renderOverlay(t),this.controlsAboveOverlay&&this.interactive&&this.drawControls(t),this.fire("after:render",{ctx:t})},drawClipPathOnCanvas:function(t){var e=this.viewportTransform,i=this.clipPath;t.save(),t.transform(e[0],e[1],e[2],e[3],e[4],e[5]),t.globalCompositeOperation="destination-in",i.transform(t),t.scale(1/i.zoomX,1/i.zoomY),t.drawImage(i._cacheCanvas,-i.cacheTranslationX,-i.cacheTranslationY),t.restore()},_renderObjects:function(t,e){for(var i=0,r=e.length;i<r;++i)e[i]&&e[i].render(t)},_renderBackgroundOrOverlay:function(t,e){var i=this[e+"Color"],r=this[e+"Image"],n=this.viewportTransform,e=this[e+"Vpt"];(i||r)&&(i&&(t.save(),t.beginPath(),t.moveTo(0,0),t.lineTo(this.width,0),t.lineTo(this.width,this.height),t.lineTo(0,this.height),t.closePath(),t.fillStyle=i.toLive?i.toLive(t,this):i,e&&t.transform(n[0],n[1],n[2],n[3],n[4],n[5]),t.transform(1,0,0,1,i.offsetX||0,i.offsetY||0),(i=i.gradientTransform||i.patternTransform)&&t.transform(i[0],i[1],i[2],i[3],i[4],i[5]),t.fill(),t.restore()),r&&(t.save(),e&&t.transform(n[0],n[1],n[2],n[3],n[4],n[5]),r.render(t),t.restore()))},_renderBackground:function(t){this._renderBackgroundOrOverlay(t,"background")},_renderOverlay:function(t){this._renderBackgroundOrOverlay(t,"overlay")},getCenter:function(){return{top:this.height/2,left:this.width/2}},centerObjectH:function(t){return this._centerObject(t,new fabric.Point(this.getCenter().left,t.getCenterPoint().y))},centerObjectV:function(t){return this._centerObject(t,new fabric.Point(t.getCenterPoint().x,this.getCenter().top))},centerObject:function(t){var e=this.getCenter();return this._centerObject(t,new fabric.Point(e.left,e.top))},viewportCenterObject:function(t){var e=this.getVpCenter();return this._centerObject(t,e)},viewportCenterObjectH:function(t){var e=this.getVpCenter();return this._centerObject(t,new fabric.Point(e.x,t.getCenterPoint().y)),this},viewportCenterObjectV:function(t){var e=this.getVpCenter();return this._centerObject(t,new fabric.Point(t.getCenterPoint().x,e.y))},getVpCenter:function(){var t=this.getCenter(),e=o(this.viewportTransform);return s({x:t.left,y:t.top},e)},_centerObject:function(t,e){return t.setPositionByOrigin(e,"center","center"),t.setCoords(),this.renderOnAddRemove&&this.requestRenderAll(),this},toDatalessJSON:function(t){return this.toDatalessObject(t)},toObject:function(t){return this._toObjectMethod("toObject",t)},toDatalessObject:function(t){return this._toObjectMethod("toDatalessObject",t)},_toObjectMethod:function(t,e){var i=this.clipPath,r={version:fabric.version,objects:this._toObjects(t,e)};return i&&!i.excludeFromExport&&(r.clipPath=this._toObject(this.clipPath,t,e)),n(r,this.__serializeBgOverlay(t,e)),fabric.util.populateWithProperties(this,r,e),r},_toObjects:function(e,i){return this._objects.filter(function(t){return!t.excludeFromExport}).map(function(t){return this._toObject(t,e,i)},this)},_toObject:function(t,e,i){var r;this.includeDefaultValues||(r=t.includeDefaultValues,t.includeDefaultValues=!1);i=t[e](i);return this.includeDefaultValues||(t.includeDefaultValues=r),i},__serializeBgOverlay:function(t,e){var i={},r=this.backgroundImage,n=this.overlayImage,s=this.backgroundColor,o=this.overlayColor;return s&&s.toObject?s.excludeFromExport||(i.background=s.toObject(e)):s&&(i.background=s),o&&o.toObject?o.excludeFromExport||(i.overlay=o.toObject(e)):o&&(i.overlay=o),r&&!r.excludeFromExport&&(i.backgroundImage=this._toObject(r,t,e)),n&&!n.excludeFromExport&&(i.overlayImage=this._toObject(n,t,e)),i},svgViewportTransformation:!0,toSVG:function(t,e){(t=t||{}).reviver=e;var i=[];return this._setSVGPreamble(i,t),this._setSVGHeader(i,t),this.clipPath&&i.push('<g clip-path="url(#'+this.clipPath.clipPathId+')" >\n'),this._setSVGBgOverlayColor(i,"background"),this._setSVGBgOverlayImage(i,"backgroundImage",e),this._setSVGObjects(i,e),this.clipPath&&i.push("</g>\n"),this._setSVGBgOverlayColor(i,"overlay"),this._setSVGBgOverlayImage(i,"overlayImage",e),i.push("</svg>"),i.join("")},_setSVGPreamble:function(t,e){e.suppressPreamble||t.push('<?xml version="1.0" encoding="',e.encoding||"UTF-8",'" standalone="no" ?>\n','<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" ','"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">\n')},_setSVGHeader:function(t,e){var i,r=e.width||this.width,n=e.height||this.height,s='viewBox="0 0 '+this.width+" "+this.height+'" ',o=fabric.Object.NUM_FRACTION_DIGITS;e.viewBox?s='viewBox="'+e.viewBox.x+" "+e.viewBox.y+" "+e.viewBox.width+" "+e.viewBox.height+'" ':this.svgViewportTransformation&&(i=this.viewportTransform,s='viewBox="'+a(-i[4]/i[0],o)+" "+a(-i[5]/i[3],o)+" "+a(this.width/i[0],o)+" "+a(this.height/i[3],o)+'" '),t.push("<svg ",'xmlns="http://www.w3.org/2000/svg" ','xmlns:xlink="http://www.w3.org/1999/xlink" ','version="1.1" ','width="',r,'" ','height="',n,'" ',s,'xml:space="preserve">\n',"<desc>Created with Fabric.js ",fabric.version,"</desc>\n","<defs>\n",this.createSVGFontFacesMarkup(),this.createSVGRefElementsMarkup(),this.createSVGClipPathMarkup(e),"</defs>\n")},createSVGClipPathMarkup:function(t){var e=this.clipPath;return e?(e.clipPathId="CLIPPATH_"+fabric.Object.__uid++,'<clipPath id="'+e.clipPathId+'" >\n'+this.clipPath.toClipPathSVG(t.reviver)+"</clipPath>\n"):""},createSVGRefElementsMarkup:function(){var n=this;return["background","overlay"].map(function(t){var e=n[t+"Color"];if(e&&e.toLive){var i=n[t+"Vpt"],r=n.viewportTransform,t={width:n.width/(i?r[0]:1),height:n.height/(i?r[3]:1)};return e.toSVG(t,{additionalTransform:i?fabric.util.matrixToSVG(r):""})}}).join("")},createSVGFontFacesMarkup:function(){var t,e,i,r,n,s,o,a,c,h="",l={},u=fabric.fontPaths,f=[];for(this._objects.forEach(function t(e){f.push(e),e._objects&&e._objects.forEach(t)}),o=0,a=f.length;o<a;o++)if(e=(t=f[o]).fontFamily,-1!==t.type.indexOf("text")&&!l[e]&&u[e]&&(l[e]=!0,t.styles))for(n in i=t.styles)for(s in r=i[n])!l[e=r[s].fontFamily]&&u[e]&&(l[e]=!0);for(c in l)h+=["\t\t@font-face {\n","\t\t\tfont-family: '",c,"';\n","\t\t\tsrc: url('",u[c],"');\n","\t\t}\n"].join("");return h=h&&['\t<style type="text/css">',"<![CDATA[\n",h,"]]>","</style>\n"].join("")},_setSVGObjects:function(t,e){for(var i,r=this._objects,n=0,s=r.length;n<s;n++)(i=r[n]).excludeFromExport||this._setSVGObject(t,i,e)},_setSVGObject:function(t,e,i){t.push(e.toSVG(i))},_setSVGBgOverlayImage:function(t,e,i){this[e]&&!this[e].excludeFromExport&&this[e].toSVG&&t.push(this[e].toSVG(i))},_setSVGBgOverlayColor:function(t,e){var i,r=this[e+"Color"],n=this.viewportTransform,s=this.width,o=this.height;r&&(r.toLive?(i=r.repeat,n=fabric.util.invertTransform(n),n=this[e+"Vpt"]?fabric.util.matrixToSVG(n):"",t.push('<rect transform="'+n+" translate(",s/2,",",o/2,')"',' x="',r.offsetX-s/2,'" y="',r.offsetY-o/2,'" ','width="',"repeat-y"===i||"no-repeat"===i?r.source.width:s,'" height="',"repeat-x"===i||"no-repeat"===i?r.source.height:o,'" fill="url(#SVGID_'+r.id+')"',"></rect>\n")):t.push('<rect x="0" y="0" width="100%" height="100%" ','fill="',r,'"',"></rect>\n"))},sendToBack:function(t){if(!t)return this;var e,i,r,n=this._activeObject;if(t===n&&"activeSelection"===t.type)for(e=(r=n._objects).length;e--;)i=r[e],h(this._objects,i),this._objects.unshift(i);else h(this._objects,t),this._objects.unshift(t);return this.renderOnAddRemove&&this.requestRenderAll(),this},bringToFront:function(t){if(!t)return this;var e,i,r,n=this._activeObject;if(t===n&&"activeSelection"===t.type)for(r=n._objects,e=0;e<r.length;e++)i=r[e],h(this._objects,i),this._objects.push(i);else h(this._objects,t),this._objects.push(t);return this.renderOnAddRemove&&this.requestRenderAll(),this},sendBackwards:function(t,e){if(!t)return this;var i,r,n,s,o,a=this._activeObject,c=0;if(t===a&&"activeSelection"===t.type)for(o=a._objects,i=0;i<o.length;i++)r=o[i],0+c<(n=this._objects.indexOf(r))&&(s=n-1,h(this._objects,r),this._objects.splice(s,0,r)),c++;else 0!==(n=this._objects.indexOf(t))&&(s=this._findNewLowerIndex(t,n,e),h(this._objects,t),this._objects.splice(s,0,t));return this.renderOnAddRemove&&this.requestRenderAll(),this},_findNewLowerIndex:function(t,e,i){var r,n;if(i){for(n=(r=e)-1;0<=n;--n)if(t.intersectsWithObject(this._objects[n])||t.isContainedWithinObject(this._objects[n])||this._objects[n].isContainedWithinObject(t)){r=n;break}}else r=e-1;return r},bringForward:function(t,e){if(!t)return this;var i,r,n,s,o,a=this._activeObject,c=0;if(t===a&&"activeSelection"===t.type)for(i=(o=a._objects).length;i--;)r=o[i],(n=this._objects.indexOf(r))<this._objects.length-1-c&&(s=n+1,h(this._objects,r),this._objects.splice(s,0,r)),c++;else(n=this._objects.indexOf(t))!==this._objects.length-1&&(s=this._findNewUpperIndex(t,n,e),h(this._objects,t),this._objects.splice(s,0,t));return this.renderOnAddRemove&&this.requestRenderAll(),this},_findNewUpperIndex:function(t,e,i){var r,n,s;if(i){for(n=(r=e)+1,s=this._objects.length;n<s;++n)if(t.intersectsWithObject(this._objects[n])||t.isContainedWithinObject(this._objects[n])||this._objects[n].isContainedWithinObject(t)){r=n;break}}else r=e+1;return r},moveTo:function(t,e){return h(this._objects,t),this._objects.splice(e,0,t),this.renderOnAddRemove&&this.requestRenderAll()},dispose:function(){return this.isRendering&&(fabric.util.cancelAnimFrame(this.isRendering),this.isRendering=0),this.forEachObject(function(t){t.dispose&&t.dispose()}),this._objects=[],this.backgroundImage&&this.backgroundImage.dispose&&this.backgroundImage.dispose(),this.backgroundImage=null,this.overlayImage&&this.overlayImage.dispose&&this.overlayImage.dispose(),this.overlayImage=null,this._iTextInstances=null,this.contextContainer=null,this.lowerCanvasEl.classList.remove("lower-canvas"),this.lowerCanvasEl.style=this._originalCanvasStyle,delete this._originalCanvasStyle,this.lowerCanvasEl.setAttribute("width",this.width),this.lowerCanvasEl.setAttribute("height",this.height),fabric.util.cleanUpJsdomNode(this.lowerCanvasEl),this.lowerCanvasEl=void 0,this},toString:function(){return"#<fabric.Canvas ("+this.complexity()+"): { objects: "+this._objects.length+" }>"}}),n(fabric.StaticCanvas.prototype,fabric.Observable),n(fabric.StaticCanvas.prototype,fabric.Collection),n(fabric.StaticCanvas.prototype,fabric.DataURLExporter),n(fabric.StaticCanvas,{EMPTY_JSON:'{"objects": [], "background": "white"}',supports:function(t){var e=r();if(!e||!e.getContext)return null;e=e.getContext("2d");return!e||"setLineDash"!==t?null:void 0!==e.setLineDash}}),fabric.StaticCanvas.prototype.toJSON=fabric.StaticCanvas.prototype.toObject,fabric.isLikelyNode&&(fabric.StaticCanvas.prototype.createPNGStream=function(){var t=i(this.lowerCanvasEl);return t&&t.createPNGStream()},fabric.StaticCanvas.prototype.createJPEGStream=function(t){var e=i(this.lowerCanvasEl);return e&&e.createJPEGStream(t)}))}(),fabric.BaseBrush=fabric.util.createClass({color:"rgb(0, 0, 0)",width:1,shadow:null,strokeLineCap:"round",strokeLineJoin:"round",strokeMiterLimit:10,strokeDashArray:null,limitedToCanvasSize:!1,_setBrushStyles:function(){var t=this.canvas.contextTop;t.strokeStyle=this.color,t.lineWidth=this.width,t.lineCap=this.strokeLineCap,t.miterLimit=this.strokeMiterLimit,t.lineJoin=this.strokeLineJoin,t.setLineDash(this.strokeDashArray||[])},_saveAndTransform:function(t){var e=this.canvas.viewportTransform;t.save(),t.transform(e[0],e[1],e[2],e[3],e[4],e[5])},_setShadow:function(){var t,e,i,r;this.shadow&&(t=this.canvas,e=this.shadow,i=t.contextTop,r=t.getZoom(),t&&t._isRetinaScaling()&&(r*=fabric.devicePixelRatio),i.shadowColor=e.color,i.shadowBlur=e.blur*r,i.shadowOffsetX=e.offsetX*r,i.shadowOffsetY=e.offsetY*r)},needsFullRender:function(){return new fabric.Color(this.color).getAlpha()<1||!!this.shadow},_resetShadow:function(){var t=this.canvas.contextTop;t.shadowColor="",t.shadowBlur=t.shadowOffsetX=t.shadowOffsetY=0},_isOutSideCanvas:function(t){return t.x<0||t.x>this.canvas.getWidth()||t.y<0||t.y>this.canvas.getHeight()}}),fabric.PencilBrush=fabric.util.createClass(fabric.BaseBrush,{decimate:.4,initialize:function(t){this.canvas=t,this._points=[]},_drawSegment:function(t,e,i){i=e.midPointFrom(i);return t.quadraticCurveTo(e.x,e.y,i.x,i.y),i},onMouseDown:function(t,e){this.canvas._isMainEvent(e.e)&&(this._prepareForDrawing(t),this._captureDrawingPath(t),this._render())},onMouseMove:function(t,e){var i;this.canvas._isMainEvent(e.e)&&(!0===this.limitedToCanvasSize&&this._isOutSideCanvas(t)||this._captureDrawingPath(t)&&1<this._points.length&&(this.needsFullRender()?(this.canvas.clearContext(this.canvas.contextTop),this._render()):(e=(i=this._points).length,t=this.canvas.contextTop,this._saveAndTransform(t),this.oldEnd&&(t.beginPath(),t.moveTo(this.oldEnd.x,this.oldEnd.y)),this.oldEnd=this._drawSegment(t,i[e-2],i[e-1],!0),t.stroke(),t.restore())))},onMouseUp:function(t){return!this.canvas._isMainEvent(t.e)||(this.oldEnd=void 0,this._finalizeAndAddPath(),!1)},_prepareForDrawing:function(t){t=new fabric.Point(t.x,t.y);this._reset(),this._addPoint(t),this.canvas.contextTop.moveTo(t.x,t.y)},_addPoint:function(t){return!(1<this._points.length&&t.eq(this._points[this._points.length-1]))&&(this._points.push(t),!0)},_reset:function(){this._points=[],this._setBrushStyles(),this._setShadow()},_captureDrawingPath:function(t){t=new fabric.Point(t.x,t.y);return this._addPoint(t)},_render:function(){var t,e,i,r=this.canvas.contextTop,n=this._points[0],s=this._points[1];for(this._saveAndTransform(r),r.beginPath(),2===this._points.length&&n.x===s.x&&n.y===s.y&&(i=this.width/1e3,n=new fabric.Point(n.x,n.y),s=new fabric.Point(s.x,s.y),n.x-=i,s.x+=i),r.moveTo(n.x,n.y),t=1,e=this._points.length;t<e;t++)this._drawSegment(r,n,s),n=this._points[t],s=this._points[t+1];r.lineTo(n.x,n.y),r.stroke(),r.restore()},convertPointsToSVGPath:function(t){var e=this.width/1e3;return fabric.util.getSmoothPathFromPoints(t,e)},_isEmptySVGPath:function(t){return"M 0 0 Q 0 0 0 0 L 0 0"===fabric.util.joinPath(t)},createPath:function(t){t=new fabric.Path(t,{fill:null,stroke:this.color,strokeWidth:this.width,strokeLineCap:this.strokeLineCap,strokeMiterLimit:this.strokeMiterLimit,strokeLineJoin:this.strokeLineJoin,strokeDashArray:this.strokeDashArray});return this.shadow&&(this.shadow.affectStroke=!0,t.shadow=new fabric.Shadow(this.shadow)),t},decimatePoints:function(t,e){if(t.length<=2)return t;for(var i=this.canvas.getZoom(),r=Math.pow(e/i,2),n=t.length-1,s=t[0],o=[s],a=1;a<n-1;a++)r<=Math.pow(s.x-t[a].x,2)+Math.pow(s.y-t[a].y,2)&&(s=t[a],o.push(s));return o.push(t[n]),o},_finalizeAndAddPath:function(){this.canvas.contextTop.closePath(),this.decimate&&(this._points=this.decimatePoints(this._points,this.decimate));var t=this.convertPointsToSVGPath(this._points);this._isEmptySVGPath(t)?this.canvas.requestRenderAll():(t=this.createPath(t),this.canvas.clearContext(this.canvas.contextTop),this.canvas.fire("before:path:created",{path:t}),this.canvas.add(t),this.canvas.requestRenderAll(),t.setCoords(),this._resetShadow(),this.canvas.fire("path:created",{path:t}))}}),fabric.CircleBrush=fabric.util.createClass(fabric.BaseBrush,{width:10,initialize:function(t){this.canvas=t,this.points=[]},drawDot:function(t){var e=this.addPoint(t),t=this.canvas.contextTop;this._saveAndTransform(t),this.dot(t,e),t.restore()},dot:function(t,e){t.fillStyle=e.fill,t.beginPath(),t.arc(e.x,e.y,e.radius,0,2*Math.PI,!1),t.closePath(),t.fill()},onMouseDown:function(t){this.points.length=0,this.canvas.clearContext(this.canvas.contextTop),this._setShadow(),this.drawDot(t)},_render:function(){var t,e,i=this.canvas.contextTop,r=this.points;for(this._saveAndTransform(i),t=0,e=r.length;t<e;t++)this.dot(i,r[t]);i.restore()},onMouseMove:function(t){!0===this.limitedToCanvasSize&&this._isOutSideCanvas(t)||(this.needsFullRender()?(this.canvas.clearContext(this.canvas.contextTop),this.addPoint(t),this._render()):this.drawDot(t))},onMouseUp:function(){var t=this.canvas.renderOnAddRemove;this.canvas.renderOnAddRemove=!1;for(var e=[],i=0,r=this.points.length;i<r;i++){var n=this.points[i],n=new fabric.Circle({radius:n.radius,left:n.x,top:n.y,originX:"center",originY:"center",fill:n.fill});this.shadow&&(n.shadow=new fabric.Shadow(this.shadow)),e.push(n)}var s=new fabric.Group(e);s.canvas=this.canvas,this.canvas.fire("before:path:created",{path:s}),this.canvas.add(s),this.canvas.fire("path:created",{path:s}),this.canvas.clearContext(this.canvas.contextTop),this._resetShadow(),this.canvas.renderOnAddRemove=t,this.canvas.requestRenderAll()},addPoint:function(t){var e=new fabric.Point(t.x,t.y),i=fabric.util.getRandomInt(Math.max(0,this.width-20),this.width+20)/2,t=new fabric.Color(this.color).setAlpha(fabric.util.getRandomInt(0,100)/100).toRgba();return e.radius=i,e.fill=t,this.points.push(e),e}}),fabric.SprayBrush=fabric.util.createClass(fabric.BaseBrush,{width:10,density:20,dotWidth:1,dotWidthVariance:1,randomOpacity:!1,optimizeOverlapping:!0,initialize:function(t){this.canvas=t,this.sprayChunks=[]},onMouseDown:function(t){this.sprayChunks.length=0,this.canvas.clearContext(this.canvas.contextTop),this._setShadow(),this.addSprayChunk(t),this.render(this.sprayChunkPoints)},onMouseMove:function(t){!0===this.limitedToCanvasSize&&this._isOutSideCanvas(t)||(this.addSprayChunk(t),this.render(this.sprayChunkPoints))},onMouseUp:function(){var t=this.canvas.renderOnAddRemove;this.canvas.renderOnAddRemove=!1;for(var e=[],i=0,r=this.sprayChunks.length;i<r;i++)for(var n=this.sprayChunks[i],s=0,o=n.length;s<o;s++){var a=new fabric.Rect({width:n[s].width,height:n[s].width,left:n[s].x+1,top:n[s].y+1,originX:"center",originY:"center",fill:this.color});e.push(a)}this.optimizeOverlapping&&(e=this._getOptimizedRects(e));var c=new fabric.Group(e);this.shadow&&c.set("shadow",new fabric.Shadow(this.shadow)),this.canvas.fire("before:path:created",{path:c}),this.canvas.add(c),this.canvas.fire("path:created",{path:c}),this.canvas.clearContext(this.canvas.contextTop),this._resetShadow(),this.canvas.renderOnAddRemove=t,this.canvas.requestRenderAll()},_getOptimizedRects:function(t){for(var e,i={},r=0,n=t.length;r<n;r++)i[e=t[r].left+""+t[r].top]||(i[e]=t[r]);var s=[];for(e in i)s.push(i[e]);return s},render:function(t){var e,i,r=this.canvas.contextTop;for(r.fillStyle=this.color,this._saveAndTransform(r),e=0,i=t.length;e<i;e++){var n=t[e];void 0!==n.opacity&&(r.globalAlpha=n.opacity),r.fillRect(n.x,n.y,n.width,n.width)}r.restore()},_render:function(){var t,e,i=this.canvas.contextTop;for(i.fillStyle=this.color,this._saveAndTransform(i),t=0,e=this.sprayChunks.length;t<e;t++)this.render(this.sprayChunks[t]);i.restore()},addSprayChunk:function(t){this.sprayChunkPoints=[];for(var e=this.width/2,i=0;i<this.density;i++){var r=fabric.util.getRandomInt(t.x-e,t.x+e),n=fabric.util.getRandomInt(t.y-e,t.y+e),s=this.dotWidthVariance?fabric.util.getRandomInt(Math.max(1,this.dotWidth-this.dotWidthVariance),this.dotWidth+this.dotWidthVariance):this.dotWidth,n=new fabric.Point(r,n);n.width=s,this.randomOpacity&&(n.opacity=fabric.util.getRandomInt(0,100)/100),this.sprayChunkPoints.push(n)}this.sprayChunks.push(this.sprayChunkPoints)}}),fabric.PatternBrush=fabric.util.createClass(fabric.PencilBrush,{getPatternSrc:function(){var t=fabric.util.createCanvasElement(),e=t.getContext("2d");return t.width=t.height=25,e.fillStyle=this.color,e.beginPath(),e.arc(10,10,10,0,2*Math.PI,!1),e.closePath(),e.fill(),t},getPatternSrcFunction:function(){return String(this.getPatternSrc).replace("this.color",'"'+this.color+'"')},getPattern:function(){return this.canvas.contextTop.createPattern(this.source||this.getPatternSrc(),"repeat")},_setBrushStyles:function(){this.callSuper("_setBrushStyles"),this.canvas.contextTop.strokeStyle=this.getPattern()},createPath:function(t){var e=this.callSuper("createPath",t),t=e._getLeftTopCoords().scalarAdd(e.strokeWidth/2);return e.stroke=new fabric.Pattern({source:this.source||this.getPatternSrcFunction(),offsetX:-t.x,offsetY:-t.y}),e}}),function(){var t,o=fabric.util.getPointer,c=fabric.util.degreesToRadians,h=fabric.util.isTouchEvent;for(t in fabric.Canvas=fabric.util.createClass(fabric.StaticCanvas,{initialize:function(t,e){e=e||{},this.renderAndResetBound=this.renderAndReset.bind(this),this.requestRenderAllBound=this.requestRenderAll.bind(this),this._initStatic(t,e),this._initInteractive(),this._createCacheCanvas()},uniformScaling:!0,uniScaleKey:"shiftKey",centeredScaling:!1,centeredRotation:!1,centeredKey:"altKey",altActionKey:"shiftKey",interactive:!0,selection:!0,selectionKey:"shiftKey",altSelectionKey:null,selectionColor:"rgba(100, 100, 255, 0.3)",selectionDashArray:[],selectionBorderColor:"rgba(255, 255, 255, 0.3)",selectionLineWidth:1,selectionFullyContained:!1,hoverCursor:"move",moveCursor:"move",defaultCursor:"default",freeDrawingCursor:"crosshair",rotationCursor:"crosshair",notAllowedCursor:"not-allowed",containerClass:"canvas-container",perPixelTargetFind:!1,targetFindTolerance:0,skipTargetFind:!1,isDrawingMode:!1,preserveObjectStacking:!1,snapAngle:0,snapThreshold:null,stopContextMenu:!1,fireRightClick:!1,fireMiddleClick:!1,targets:[],_hoveredTarget:null,_hoveredTargets:[],_initInteractive:function(){this._currentTransform=null,this._groupSelector=null,this._initWrapperElement(),this._createUpperCanvas(),this._initEventListeners(),this._initRetinaScaling(),this.freeDrawingBrush=fabric.PencilBrush&&new fabric.PencilBrush(this),this.calcOffset()},_chooseObjectsToRender:function(){var t,e=this.getActiveObjects();if(0<e.length&&!this.preserveObjectStacking){for(var i=[],r=[],n=0,s=this._objects.length;n<s;n++)t=this._objects[n],(-1===e.indexOf(t)?i:r).push(t);1<e.length&&(this._activeObject._objects=r),i.push.apply(i,r)}else i=this._objects;return i},renderAll:function(){!this.contextTopDirty||this._groupSelector||this.isDrawingMode||(this.clearContext(this.contextTop),this.contextTopDirty=!1),this.hasLostContext&&this.renderTopLayer(this.contextTop);var t=this.contextContainer;return this.renderCanvas(t,this._chooseObjectsToRender()),this},renderTopLayer:function(t){t.save(),this.isDrawingMode&&this._isCurrentlyDrawing&&(this.freeDrawingBrush&&this.freeDrawingBrush._render(),this.contextTopDirty=!0),this.selection&&this._groupSelector&&(this._drawSelection(t),this.contextTopDirty=!0),t.restore()},renderTop:function(){var t=this.contextTop;return this.clearContext(t),this.renderTopLayer(t),this.fire("after:render"),this},_normalizePointer:function(t,e){t=t.calcTransformMatrix(),t=fabric.util.invertTransform(t),e=this.restorePointerVpt(e);return fabric.util.transformPoint(e,t)},isTargetTransparent:function(t,e,i){if(t.shouldCache()&&t._cacheCanvas&&t!==this._activeObject){var r=this._normalizePointer(t,{x:e,y:i}),n=Math.max(t.cacheTranslationX+r.x*t.zoomX,0),s=Math.max(t.cacheTranslationY+r.y*t.zoomY,0);return fabric.util.isTransparent(t._cacheContext,Math.round(n),Math.round(s),this.targetFindTolerance)}r=this.contextCache,n=t.selectionBackgroundColor,s=this.viewportTransform;return t.selectionBackgroundColor="",this.clearContext(r),r.save(),r.transform(s[0],s[1],s[2],s[3],s[4],s[5]),t.render(r),r.restore(),t.selectionBackgroundColor=n,fabric.util.isTransparent(r,e,i,this.targetFindTolerance)},_isSelectionKeyPressed:function(e){return"[object Array]"===Object.prototype.toString.call(this.selectionKey)?!!this.selectionKey.find(function(t){return!0===e[t]}):e[this.selectionKey]},_shouldClearSelection:function(t,e){var i=this.getActiveObjects(),r=this._activeObject;return!e||e&&r&&1<i.length&&-1===i.indexOf(e)&&r!==e&&!this._isSelectionKeyPressed(t)||e&&!e.evented||e&&!e.selectable&&r&&r!==e},_shouldCenterTransform:function(t,e,i){var r;if(t)return"scale"===e||"scaleX"===e||"scaleY"===e||"resizing"===e?r=this.centeredScaling||t.centeredScaling:"rotate"===e&&(r=this.centeredRotation||t.centeredRotation),r?!i:i},_getOriginFromCorner:function(t,e){t={x:t.originX,y:t.originY};return"ml"===e||"tl"===e||"bl"===e?t.x="right":"mr"!==e&&"tr"!==e&&"br"!==e||(t.x="left"),"tl"===e||"mt"===e||"tr"===e?t.y="bottom":"bl"!==e&&"mb"!==e&&"br"!==e||(t.y="top"),t},_getActionFromCorner:function(t,e,i,r){if(!e||!t)return"drag";e=r.controls[e];return e.getActionName(i,e,r)},_setupCurrentTransform:function(t,e,i){var r,n,s,o,a;e&&(a=this.getPointer(t),r=e.__corner,o=e.controls[r],n=i&&r?o.getActionHandler(t,e,o):fabric.controlsUtils.dragHandler,s=this._getActionFromCorner(i,r,t,e),o=this._getOriginFromCorner(e,r),i=t[this.centeredKey],a={target:e,action:s,actionHandler:n,corner:r,scaleX:e.scaleX,scaleY:e.scaleY,skewX:e.skewX,skewY:e.skewY,offsetX:a.x-e.left,offsetY:a.y-e.top,originX:o.x,originY:o.y,ex:a.x,ey:a.y,lastX:a.x,lastY:a.y,theta:c(e.angle),width:e.width*e.scaleX,shiftKey:t.shiftKey,altKey:i,original:fabric.util.saveObjectTransform(e)},this._shouldCenterTransform(e,s,i)&&(a.originX="center",a.originY="center"),a.original.originX=o.x,a.original.originY=o.y,this._currentTransform=a,this._beforeTransform(t))},setCursor:function(t){this.upperCanvasEl.style.cursor=t},_drawSelection:function(t){var e=this._groupSelector,i=new fabric.Point(e.ex,e.ey),r=fabric.util.transformPoint(i,this.viewportTransform),n=new fabric.Point(e.ex+e.left,e.ey+e.top),s=fabric.util.transformPoint(n,this.viewportTransform),i=Math.min(r.x,s.x),e=Math.min(r.y,s.y),n=Math.max(r.x,s.x),r=Math.max(r.y,s.y),s=this.selectionLineWidth/2;this.selectionColor&&(t.fillStyle=this.selectionColor,t.fillRect(i,e,n-i,r-e)),this.selectionLineWidth&&this.selectionBorderColor&&(t.lineWidth=this.selectionLineWidth,t.strokeStyle=this.selectionBorderColor,i+=s,e+=s,n-=s,r-=s,fabric.Object.prototype._setLineDash.call(this,t,this.selectionDashArray),t.strokeRect(i,e,n-i,r-e))},findTarget:function(t,e){if(!this.skipTargetFind){var i,r,n=this.getPointer(t,!0),s=this._activeObject,o=this.getActiveObjects(),a=h(t),c=1<o.length&&!e||1===o.length;if(this.targets=[],c&&s._findTargetCorner(n,a))return s;if(1<o.length&&!e&&s===this._searchPossibleTargets([s],n))return s;if(1===o.length&&s===this._searchPossibleTargets([s],n)){if(!this.preserveObjectStacking)return s;i=s,r=this.targets,this.targets=[]}n=this._searchPossibleTargets(this._objects,n);return t[this.altSelectionKey]&&n&&i&&n!==i&&(n=i,this.targets=r),n}},_checkTarget:function(t,e,i){if(e&&e.visible&&e.evented&&e.containsPoint(t))return!((this.perPixelTargetFind||e.perPixelTargetFind)&&!e.isEditing)||(!this.isTargetTransparent(e,i.x,i.y)||void 0)},_searchPossibleTargets:function(t,e){for(var i,r,n=t.length;n--;){var s=t[n],o=s.group?this._normalizePointer(s.group,e):e;if(this._checkTarget(o,s,e)){(i=t[n]).subTargetCheck&&i instanceof fabric.Group&&(r=this._searchPossibleTargets(i._objects,e))&&this.targets.push(r);break}}return i},restorePointerVpt:function(t){return fabric.util.transformPoint(t,fabric.util.invertTransform(this.viewportTransform))},getPointer:function(t,e){if(this._absolutePointer&&!e)return this._absolutePointer;if(this._pointer&&e)return this._pointer;var i=o(t),r=this.upperCanvasEl,n=r.getBoundingClientRect(),s=n.width||0,t=n.height||0;s&&t||("top"in n&&"bottom"in n&&(t=Math.abs(n.top-n.bottom)),"right"in n&&"left"in n&&(s=Math.abs(n.right-n.left))),this.calcOffset(),i.x=i.x-this._offset.left,i.y=i.y-this._offset.top,e||(i=this.restorePointerVpt(i));e=this.getRetinaScaling();return 1!==e&&(i.x/=e,i.y/=e),t=0===s||0===t?{width:1,height:1}:{width:r.width/s,height:r.height/t},{x:i.x*t.width,y:i.y*t.height}},_createUpperCanvas:function(){var t=this.lowerCanvasEl.className.replace(/\s*lower-canvas\s*/,""),e=this.lowerCanvasEl,i=this.upperCanvasEl;i?i.className="":(i=this._createCanvasElement(),this.upperCanvasEl=i),fabric.util.addClass(i,"upper-canvas "+t),this.wrapperEl.appendChild(i),this._copyCanvasStyle(e,i),this._applyCanvasStyle(i),this.contextTop=i.getContext("2d")},_createCacheCanvas:function(){this.cacheCanvasEl=this._createCanvasElement(),this.cacheCanvasEl.setAttribute("width",this.width),this.cacheCanvasEl.setAttribute("height",this.height),this.contextCache=this.cacheCanvasEl.getContext("2d")},_initWrapperElement:function(){this.wrapperEl=fabric.util.wrapElement(this.lowerCanvasEl,"div",{class:this.containerClass}),fabric.util.setStyle(this.wrapperEl,{width:this.width+"px",height:this.height+"px",position:"relative"}),fabric.util.makeElementUnselectable(this.wrapperEl)},_applyCanvasStyle:function(t){var e=this.width||t.width,i=this.height||t.height;fabric.util.setStyle(t,{position:"absolute",width:e+"px",height:i+"px",left:0,top:0,"touch-action":this.allowTouchScrolling?"manipulation":"none","-ms-touch-action":this.allowTouchScrolling?"manipulation":"none"}),t.width=e,t.height=i,fabric.util.makeElementUnselectable(t)},_copyCanvasStyle:function(t,e){e.style.cssText=t.style.cssText},getSelectionContext:function(){return this.contextTop},getSelectionElement:function(){return this.upperCanvasEl},getActiveObject:function(){return this._activeObject},getActiveObjects:function(){var t=this._activeObject;return t?"activeSelection"===t.type&&t._objects?t._objects.slice(0):[t]:[]},_onObjectRemoved:function(t){t===this._activeObject&&(this.fire("before:selection:cleared",{target:t}),this._discardActiveObject(),this.fire("selection:cleared",{target:t}),t.fire("deselected")),t===this._hoveredTarget&&(this._hoveredTarget=null,this._hoveredTargets=[]),this.callSuper("_onObjectRemoved",t)},_fireSelectionEvents:function(e,i){var r=!1,n=this.getActiveObjects(),s=[],o=[];e.forEach(function(t){-1===n.indexOf(t)&&(r=!0,t.fire("deselected",{e:i,target:t}),o.push(t))}),n.forEach(function(t){-1===e.indexOf(t)&&(r=!0,t.fire("selected",{e:i,target:t}),s.push(t))}),0<e.length&&0<n.length?r&&this.fire("selection:updated",{e:i,selected:s,deselected:o,updated:s[0]||o[0],target:this._activeObject}):0<n.length?this.fire("selection:created",{e:i,selected:s,target:this._activeObject}):0<e.length&&this.fire("selection:cleared",{e:i,deselected:o})},setActiveObject:function(t,e){var i=this.getActiveObjects();return this._setActiveObject(t,e),this._fireSelectionEvents(i,e),this},_setActiveObject:function(t,e){return this._activeObject!==t&&(!!this._discardActiveObject(e,t)&&(!t.onSelect({e:e})&&(this._activeObject=t,!0)))},_discardActiveObject:function(t,e){var i=this._activeObject;if(i){if(i.onDeselect({e:t,object:e}))return!1;this._activeObject=null}return!0},discardActiveObject:function(t){var e=this.getActiveObjects(),i=this.getActiveObject();return e.length&&this.fire("before:selection:cleared",{target:i,e:t}),this._discardActiveObject(t),this._fireSelectionEvents(e,t),this},dispose:function(){var t=this.wrapperEl;return this.removeListeners(),t.removeChild(this.upperCanvasEl),t.removeChild(this.lowerCanvasEl),this.contextCache=null,this.contextTop=null,["upperCanvasEl","cacheCanvasEl"].forEach(function(t){fabric.util.cleanUpJsdomNode(this[t]),this[t]=void 0}.bind(this)),t.parentNode&&t.parentNode.replaceChild(this.lowerCanvasEl,this.wrapperEl),delete this.wrapperEl,fabric.StaticCanvas.prototype.dispose.call(this),this},clear:function(){return this.discardActiveObject(),this.clearContext(this.contextTop),this.callSuper("clear")},drawControls:function(t){var e=this._activeObject;e&&e._renderControls(t)},_toObject:function(t,e,i){var r=this._realizeGroupTransformOnObject(t),i=this.callSuper("_toObject",t,e,i);return this._unwindGroupTransformOnObject(t,r),i},_realizeGroupTransformOnObject:function(e){if(e.group&&"activeSelection"===e.group.type&&this._activeObject===e.group){var i={};return["angle","flipX","flipY","left","scaleX","scaleY","skewX","skewY","top"].forEach(function(t){i[t]=e[t]}),fabric.util.addTransformToObject(e,this._activeObject.calcOwnMatrix()),i}return null},_unwindGroupTransformOnObject:function(t,e){e&&t.set(e)},_setSVGObject:function(t,e,i){var r=this._realizeGroupTransformOnObject(e);this.callSuper("_setSVGObject",t,e,i),this._unwindGroupTransformOnObject(e,r)},setViewportTransform:function(t){this.renderOnAddRemove&&this._activeObject&&this._activeObject.isEditing&&this._activeObject.clearContextTop(),fabric.StaticCanvas.prototype.setViewportTransform.call(this,t)}}),fabric.StaticCanvas)"prototype"!==t&&(fabric.Canvas[t]=fabric.StaticCanvas[t])}(),function(){var r=fabric.util.addListener,n=fabric.util.removeListener,s={passive:!1};function a(t,e){return t.button&&t.button===e-1}fabric.util.object.extend(fabric.Canvas.prototype,{mainTouchId:null,_initEventListeners:function(){this.removeListeners(),this._bindEvents(),this.addOrRemove(r,"add")},_getEventPrefix:function(){return this.enablePointerEvents?"pointer":"mouse"},addOrRemove:function(t,e){var i=this.upperCanvasEl,r=this._getEventPrefix();t(fabric.window,"resize",this._onResize),t(i,r+"down",this._onMouseDown),t(i,r+"move",this._onMouseMove,s),t(i,r+"out",this._onMouseOut),t(i,r+"enter",this._onMouseEnter),t(i,"wheel",this._onMouseWheel),t(i,"contextmenu",this._onContextMenu),t(i,"dblclick",this._onDoubleClick),t(i,"dragover",this._onDragOver),t(i,"dragenter",this._onDragEnter),t(i,"dragleave",this._onDragLeave),t(i,"drop",this._onDrop),this.enablePointerEvents||t(i,"touchstart",this._onTouchStart,s),"undefined"!=typeof eventjs&&e in eventjs&&(eventjs[e](i,"gesture",this._onGesture),eventjs[e](i,"drag",this._onDrag),eventjs[e](i,"orientation",this._onOrientationChange),eventjs[e](i,"shake",this._onShake),eventjs[e](i,"longpress",this._onLongPress))},removeListeners:function(){this.addOrRemove(n,"remove");var t=this._getEventPrefix();n(fabric.document,t+"up",this._onMouseUp),n(fabric.document,"touchend",this._onTouchEnd,s),n(fabric.document,t+"move",this._onMouseMove,s),n(fabric.document,"touchmove",this._onMouseMove,s)},_bindEvents:function(){this.eventsBound||(this._onMouseDown=this._onMouseDown.bind(this),this._onTouchStart=this._onTouchStart.bind(this),this._onMouseMove=this._onMouseMove.bind(this),this._onMouseUp=this._onMouseUp.bind(this),this._onTouchEnd=this._onTouchEnd.bind(this),this._onResize=this._onResize.bind(this),this._onGesture=this._onGesture.bind(this),this._onDrag=this._onDrag.bind(this),this._onShake=this._onShake.bind(this),this._onLongPress=this._onLongPress.bind(this),this._onOrientationChange=this._onOrientationChange.bind(this),this._onMouseWheel=this._onMouseWheel.bind(this),this._onMouseOut=this._onMouseOut.bind(this),this._onMouseEnter=this._onMouseEnter.bind(this),this._onContextMenu=this._onContextMenu.bind(this),this._onDoubleClick=this._onDoubleClick.bind(this),this._onDragOver=this._onDragOver.bind(this),this._onDragEnter=this._simpleEventHandler.bind(this,"dragenter"),this._onDragLeave=this._simpleEventHandler.bind(this,"dragleave"),this._onDrop=this._simpleEventHandler.bind(this,"drop"),this.eventsBound=!0)},_onGesture:function(t,e){this.__onTransformGesture&&this.__onTransformGesture(t,e)},_onDrag:function(t,e){this.__onDrag&&this.__onDrag(t,e)},_onMouseWheel:function(t){this.__onMouseWheel(t)},_onMouseOut:function(e){var i=this._hoveredTarget;this.fire("mouse:out",{target:i,e:e}),this._hoveredTarget=null,i&&i.fire("mouseout",{e:e});var r=this;this._hoveredTargets.forEach(function(t){r.fire("mouse:out",{target:i,e:e}),t&&i.fire("mouseout",{e:e})}),this._hoveredTargets=[],this._iTextInstances&&this._iTextInstances.forEach(function(t){t.isEditing&&t.hiddenTextarea.focus()})},_onMouseEnter:function(t){this._currentTransform||this.findTarget(t)||(this.fire("mouse:over",{target:null,e:t}),this._hoveredTarget=null,this._hoveredTargets=[])},_onOrientationChange:function(t,e){this.__onOrientationChange&&this.__onOrientationChange(t,e)},_onShake:function(t,e){this.__onShake&&this.__onShake(t,e)},_onLongPress:function(t,e){this.__onLongPress&&this.__onLongPress(t,e)},_onDragOver:function(t){t.preventDefault();var e=this._simpleEventHandler("dragover",t);this._fireEnterLeaveEvents(e,t)},_onContextMenu:function(t){return this.stopContextMenu&&(t.stopPropagation(),t.preventDefault()),!1},_onDoubleClick:function(t){this._cacheTransformEventData(t),this._handleEvent(t,"dblclick"),this._resetTransformEventData(t)},getPointerId:function(t){var e=t.changedTouches;return e?e[0]&&e[0].identifier:this.enablePointerEvents?t.pointerId:-1},_isMainEvent:function(t){return!0===t.isPrimary||!1!==t.isPrimary&&("touchend"===t.type&&0===t.touches.length||(!t.changedTouches||t.changedTouches[0].identifier===this.mainTouchId))},_onTouchStart:function(t){t.preventDefault(),null===this.mainTouchId&&(this.mainTouchId=this.getPointerId(t)),this.__onMouseDown(t),this._resetTransformEventData();var e=this.upperCanvasEl,t=this._getEventPrefix();r(fabric.document,"touchend",this._onTouchEnd,s),r(fabric.document,"touchmove",this._onMouseMove,s),n(e,t+"down",this._onMouseDown)},_onMouseDown:function(t){this.__onMouseDown(t),this._resetTransformEventData();var e=this.upperCanvasEl,t=this._getEventPrefix();n(e,t+"move",this._onMouseMove,s),r(fabric.document,t+"up",this._onMouseUp),r(fabric.document,t+"move",this._onMouseMove,s)},_onTouchEnd:function(t){var e,i;0<t.touches.length||(this.__onMouseUp(t),this._resetTransformEventData(),this.mainTouchId=null,e=this._getEventPrefix(),n(fabric.document,"touchend",this._onTouchEnd,s),n(fabric.document,"touchmove",this._onMouseMove,s),(i=this)._willAddMouseDown&&clearTimeout(this._willAddMouseDown),this._willAddMouseDown=setTimeout(function(){r(i.upperCanvasEl,e+"down",i._onMouseDown),i._willAddMouseDown=0},400))},_onMouseUp:function(t){this.__onMouseUp(t),this._resetTransformEventData();var e=this.upperCanvasEl,i=this._getEventPrefix();this._isMainEvent(t)&&(n(fabric.document,i+"up",this._onMouseUp),n(fabric.document,i+"move",this._onMouseMove,s),r(e,i+"move",this._onMouseMove,s))},_onMouseMove:function(t){!this.allowTouchScrolling&&t.preventDefault&&t.preventDefault(),this.__onMouseMove(t)},_onResize:function(){this.calcOffset()},_shouldRender:function(t){var e=this._activeObject;return!!(!!e!=!!t||e&&t&&e!==t)||(e&&e.isEditing,!1)},__onMouseUp:function(t){var e,i=this._currentTransform,r=this._groupSelector,n=!1,s=!r||0===r.left&&0===r.top;if(this._cacheTransformEventData(t),r=this._target,this._handleEvent(t,"up:before"),a(t,3))this.fireRightClick&&this._handleEvent(t,"up",3,s);else{if(a(t,2))return this.fireMiddleClick&&this._handleEvent(t,"up",2,s),void this._resetTransformEventData();this.isDrawingMode&&this._isCurrentlyDrawing?this._onMouseUpInDrawingMode(t):this._isMainEvent(t)&&(i&&(this._finalizeCurrentTransform(t),n=i.actionPerformed),s||(e=r===this._activeObject,this._maybeGroupObjects(t),n=n||(this._shouldRender(r)||!e&&r===this._activeObject)),r&&(r.selectable&&r!==this._activeObject&&"up"===r.activeOn?(this.setActiveObject(r,t),n=!0):(e=r._findTargetCorner(this.getPointer(t,!0),fabric.util.isTouchEvent(t)),(e=(e=r.controls[e])&&e.getMouseUpHandler(t,r,e))&&e(t,i,(i=this.getPointer(t)).x,i.y)),r.isMoving=!1),this._setCursorFromEvent(t,r),this._handleEvent(t,"up",1,s),this._groupSelector=null,this._currentTransform=null,r&&(r.__corner=0),n?this.requestRenderAll():s||this.renderTop())}},_simpleEventHandler:function(t,e){var i=this.findTarget(e),r=this.targets,n={e:e,target:i,subTargets:r};if(this.fire(t,n),i&&i.fire(t,n),!r)return i;for(var s=0;s<r.length;s++)r[s].fire(t,n);return i},_handleEvent:function(t,e,i,r){var n=this._target,s=this.targets||[],o={e:t,target:n,subTargets:s,button:i||1,isClick:r||!1,pointer:this._pointer,absolutePointer:this._absolutePointer,transform:this._currentTransform};"up"===e&&(o.currentTarget=this.findTarget(t),o.currentSubTargets=this.targets),this.fire("mouse:"+e,o),n&&n.fire("mouse"+e,o);for(var a=0;a<s.length;a++)s[a].fire("mouse"+e,o)},_finalizeCurrentTransform:function(t){var e=this._currentTransform,i=e.target,t={e:t,target:i,transform:e,action:e.action};i._scaling&&(i._scaling=!1),i.setCoords(),(e.actionPerformed||this.stateful&&i.hasStateChanged())&&(e.actionPerformed&&(e=this._addEventOptions(t,e),this._fire(e,t)),this._fire("modified",t))},_addEventOptions:function(t,e){var i,r;switch(e.action){case"scaleX":i="scaled",r="x";break;case"scaleY":i="scaled",r="y";break;case"skewX":i="skewed",r="x";break;case"skewY":i="skewed",r="y";break;case"scale":i="scaled",r="equally";break;case"rotate":i="rotated";break;case"drag":i="moved"}return t.by=r,i},_onMouseDownInDrawingMode:function(t){this._isCurrentlyDrawing=!0,this.getActiveObject()&&this.discardActiveObject(t).requestRenderAll();var e=this.getPointer(t);this.freeDrawingBrush.onMouseDown(e,{e:t,pointer:e}),this._handleEvent(t,"down")},_onMouseMoveInDrawingMode:function(t){var e;this._isCurrentlyDrawing&&(e=this.getPointer(t),this.freeDrawingBrush.onMouseMove(e,{e:t,pointer:e})),this.setCursor(this.freeDrawingCursor),this._handleEvent(t,"move")},_onMouseUpInDrawingMode:function(t){var e=this.getPointer(t);this._isCurrentlyDrawing=this.freeDrawingBrush.onMouseUp({e:t,pointer:e}),this._handleEvent(t,"up")},__onMouseDown:function(t){this._cacheTransformEventData(t),this._handleEvent(t,"down:before");var e,i,r,n,s,o=this._target;a(t,3)?this.fireRightClick&&this._handleEvent(t,"down",3):a(t,2)?this.fireMiddleClick&&this._handleEvent(t,"down",2):this.isDrawingMode?this._onMouseDownInDrawingMode(t):this._isMainEvent(t)&&(this._currentTransform||(n=this._pointer,this._previousPointer=n,e=this._shouldRender(o),i=this._shouldGroup(t,o),this._shouldClearSelection(t,o)?this.discardActiveObject(t):i&&(this._handleGrouping(t,o),o=this._activeObject),!this.selection||o&&(o.selectable||o.isEditing||o===this._activeObject)||(this._groupSelector={ex:this._absolutePointer.x,ey:this._absolutePointer.y,top:0,left:0}),o&&(r=o===this._activeObject,o.selectable&&"down"===o.activeOn&&this.setActiveObject(o,t),s=o._findTargetCorner(this.getPointer(t,!0),fabric.util.isTouchEvent(t)),o.__corner=s,o!==this._activeObject||!s&&i||(this._setupCurrentTransform(t,o,r),s=o.controls[s],n=this.getPointer(t),(s=s&&s.getMouseDownHandler(t,o,s))&&s(t,this._currentTransform,n.x,n.y))),this._handleEvent(t,"down"),(e||i)&&this.requestRenderAll()))},_resetTransformEventData:function(){this._target=null,this._pointer=null,this._absolutePointer=null},_cacheTransformEventData:function(t){this._resetTransformEventData(),this._pointer=this.getPointer(t,!0),this._absolutePointer=this.restorePointerVpt(this._pointer),this._target=this._currentTransform?this._currentTransform.target:this.findTarget(t)||null},_beforeTransform:function(t){var e=this._currentTransform;this.stateful&&e.target.saveState(),this.fire("before:transform",{e:t,transform:e})},__onMouseMove:function(t){var e,i;this._handleEvent(t,"move:before"),this._cacheTransformEventData(t),this.isDrawingMode?this._onMouseMoveInDrawingMode(t):this._isMainEvent(t)&&((i=this._groupSelector)?(e=this._absolutePointer,i.left=e.x-i.ex,i.top=e.y-i.ey,this.renderTop()):this._currentTransform?this._transformObject(t):(i=this.findTarget(t)||null,this._setCursorFromEvent(t,i),this._fireOverOutEvents(i,t)),this._handleEvent(t,"move"),this._resetTransformEventData())},_fireOverOutEvents:function(t,e){var i=this._hoveredTarget,r=this._hoveredTargets,n=this.targets,s=Math.max(r.length,n.length);this.fireSyntheticInOutEvents(t,e,{oldTarget:i,evtOut:"mouseout",canvasEvtOut:"mouse:out",evtIn:"mouseover",canvasEvtIn:"mouse:over"});for(var o=0;o<s;o++)this.fireSyntheticInOutEvents(n[o],e,{oldTarget:r[o],evtOut:"mouseout",evtIn:"mouseover"});this._hoveredTarget=t,this._hoveredTargets=this.targets.concat()},_fireEnterLeaveEvents:function(t,e){var i=this._draggedoverTarget,r=this._hoveredTargets,n=this.targets,s=Math.max(r.length,n.length);this.fireSyntheticInOutEvents(t,e,{oldTarget:i,evtOut:"dragleave",evtIn:"dragenter"});for(var o=0;o<s;o++)this.fireSyntheticInOutEvents(n[o],e,{oldTarget:r[o],evtOut:"dragleave",evtIn:"dragenter"});this._draggedoverTarget=t},fireSyntheticInOutEvents:function(t,e,i){var r,n,s=i.oldTarget,o=s!==t,a=i.canvasEvtIn,c=i.canvasEvtOut;o&&(r={e:e,target:t,previousTarget:s},n={e:e,target:s,nextTarget:t}),e=t&&o,s&&o&&(c&&this.fire(c,n),s.fire(i.evtOut,n)),e&&(a&&this.fire(a,r),t.fire(i.evtIn,r))},__onMouseWheel:function(t){this._cacheTransformEventData(t),this._handleEvent(t,"wheel"),this._resetTransformEventData()},_transformObject:function(t){var e=this.getPointer(t),i=this._currentTransform;i.reset=!1,i.shiftKey=t.shiftKey,i.altKey=t[this.centeredKey],this._performTransformAction(t,i,e),i.actionPerformed&&this.requestRenderAll()},_performTransformAction:function(t,e,i){var r=i.x,n=i.y,s=e.action,o=!1,i=e.actionHandler;i&&(o=i(t,e,r,n)),"drag"===s&&o&&(e.target.isMoving=!0,this.setCursor(e.target.moveCursor||this.moveCursor)),e.actionPerformed=e.actionPerformed||o},_fire:fabric.controlsUtils.fireEvent,_setCursorFromEvent:function(t,e){if(!e)return this.setCursor(this.defaultCursor),!1;var i=e.hoverCursor||this.hoverCursor,r=this._activeObject&&"activeSelection"===this._activeObject.type?this._activeObject:null,r=(!r||!r.contains(e))&&e._findTargetCorner(this.getPointer(t,!0));r?this.setCursor(this.getCornerCursor(r,e,t)):(e.subTargetCheck&&this.targets.concat().reverse().map(function(t){i=t.hoverCursor||i}),this.setCursor(i))},getCornerCursor:function(t,e,i){t=e.controls[t];return t.cursorStyleHandler(i,t,e)}})}(),function(){var f=Math.min,d=Math.max;fabric.util.object.extend(fabric.Canvas.prototype,{_shouldGroup:function(t,e){var i=this._activeObject;return i&&this._isSelectionKeyPressed(t)&&e&&e.selectable&&this.selection&&(i!==e||"activeSelection"===i.type)&&!e.onSelect({e:t})},_handleGrouping:function(t,e){var i=this._activeObject;i.__corner||(e!==i||(e=this.findTarget(t,!0))&&e.selectable)&&(i&&"activeSelection"===i.type?this._updateActiveSelection(e,t):this._createActiveSelection(e,t))},_updateActiveSelection:function(t,e){var i=this._activeObject,r=i._objects.slice(0);i.contains(t)?(i.removeWithUpdate(t),this._hoveredTarget=t,this._hoveredTargets=this.targets.concat(),1===i.size()&&this._setActiveObject(i.item(0),e)):(i.addWithUpdate(t),this._hoveredTarget=i,this._hoveredTargets=this.targets.concat()),this._fireSelectionEvents(r,e)},_createActiveSelection:function(t,e){var i=this.getActiveObjects(),t=this._createGroup(t);this._hoveredTarget=t,this._setActiveObject(t,e),this._fireSelectionEvents(i,e)},_createGroup:function(t){var e=this._objects,t=e.indexOf(this._activeObject)<e.indexOf(t)?[this._activeObject,t]:[t,this._activeObject];return this._activeObject.isEditing&&this._activeObject.exitEditing(),new fabric.ActiveSelection(t,{canvas:this})},_groupSelectedObjects:function(t){var e=this._collectObjects(t);1===e.length?this.setActiveObject(e[0],t):1<e.length&&(e=new fabric.ActiveSelection(e.reverse(),{canvas:this}),this.setActiveObject(e,t))},_collectObjects:function(e){for(var t,i=[],r=this._groupSelector.ex,n=this._groupSelector.ey,s=r+this._groupSelector.left,o=n+this._groupSelector.top,a=new fabric.Point(f(r,s),f(n,o)),c=new fabric.Point(d(r,s),d(n,o)),h=!this.selectionFullyContained,l=r===s&&n===o,u=this._objects.length;u--&&!((t=this._objects[u])&&t.selectable&&t.visible&&(h&&t.intersectsWithRect(a,c,!0)||t.isContainedWithinRect(a,c,!0)||h&&t.containsPoint(a,null,!0)||h&&t.containsPoint(c,null,!0))&&(i.push(t),l)););return i=1<i.length?i.filter(function(t){return!t.onSelect({e:e})}):i},_maybeGroupObjects:function(t){this.selection&&this._groupSelector&&this._groupSelectedObjects(t),this.setCursor(this.defaultCursor),this._groupSelector=null}})}(),fabric.util.object.extend(fabric.StaticCanvas.prototype,{toDataURL:function(t){var e=(t=t||{}).format||"png",i=t.quality||1,r=(t.multiplier||1)*(t.enableRetinaScaling?this.getRetinaScaling():1),t=this.toCanvasElement(r,t);return fabric.util.toDataURL(t,e,i)},toCanvasElement:function(t,e){var i=((e=e||{}).width||this.width)*(t=t||1),r=(e.height||this.height)*t,n=this.getZoom(),s=this.width,o=this.height,a=n*t,c=this.viewportTransform,h=(c[4]-(e.left||0))*t,n=(c[5]-(e.top||0))*t,e=this.interactive,t=[a,0,0,a,h,n],a=this.enableRetinaScaling,h=fabric.util.createCanvasElement(),n=this.contextTop;return h.width=i,h.height=r,this.contextTop=null,this.enableRetinaScaling=!1,this.interactive=!1,this.viewportTransform=t,this.width=i,this.height=r,this.calcViewportBoundaries(),this.renderCanvas(h.getContext("2d"),this._objects),this.viewportTransform=c,this.width=s,this.height=o,this.calcViewportBoundaries(),this.interactive=e,this.enableRetinaScaling=a,this.contextTop=n,h}}),fabric.util.object.extend(fabric.StaticCanvas.prototype,{loadFromJSON:function(t,i,e){if(t){var r="string"==typeof t?JSON.parse(t):fabric.util.object.clone(t),n=this,s=r.clipPath,o=this.renderOnAddRemove;return this.renderOnAddRemove=!1,delete r.clipPath,this._enlivenObjects(r.objects,function(e){n.clear(),n._setBgOverlay(r,function(){s?n._enlivenObjects([s],function(t){n.clipPath=t[0],n.__setupCanvas.call(n,r,e,o,i)}):n.__setupCanvas.call(n,r,e,o,i)})},e),this}},__setupCanvas:function(t,e,i,r){var n=this;e.forEach(function(t,e){n.insertAt(t,e)}),this.renderOnAddRemove=i,delete t.objects,delete t.backgroundImage,delete t.overlayImage,delete t.background,delete t.overlay,this._setOptions(t),this.renderAll(),r&&r()},_setBgOverlay:function(t,e){var i,r={backgroundColor:!1,overlayColor:!1,backgroundImage:!1,overlayImage:!1};t.backgroundImage||t.overlayImage||t.background||t.overlay?(this.__setBgOverlay("backgroundImage",t.backgroundImage,r,i=function(){r.backgroundImage&&r.overlayImage&&r.backgroundColor&&r.overlayColor&&e&&e()}),this.__setBgOverlay("overlayImage",t.overlayImage,r,i),this.__setBgOverlay("backgroundColor",t.background,r,i),this.__setBgOverlay("overlayColor",t.overlay,r,i)):e&&e()},__setBgOverlay:function(e,t,i,r){var n=this;if(!t)return i[e]=!0,void(r&&r());"backgroundImage"===e||"overlayImage"===e?fabric.util.enlivenObjects([t],function(t){n[e]=t[0],i[e]=!0,r&&r()}):this["set"+fabric.util.string.capitalize(e,!0)](t,function(){i[e]=!0,r&&r()})},_enlivenObjects:function(t,e,i){t&&0!==t.length?fabric.util.enlivenObjects(t,function(t){e&&e(t)},null,i):e&&e([])},_toDataURL:function(e,i){this.clone(function(t){i(t.toDataURL(e))})},_toDataURLWithMultiplier:function(e,i,r){this.clone(function(t){r(t.toDataURLWithMultiplier(e,i))})},clone:function(e,t){var i=JSON.stringify(this.toJSON(t));this.cloneWithoutData(function(t){t.loadFromJSON(i,function(){e&&e(t)})})},cloneWithoutData:function(t){var e=fabric.util.createCanvasElement();e.width=this.width,e.height=this.height;var i=new fabric.Canvas(e);this.backgroundImage?(i.setBackgroundImage(this.backgroundImage.src,function(){i.renderAll(),t&&t(i)}),i.backgroundImageOpacity=this.backgroundImageOpacity,i.backgroundImageStretch=this.backgroundImageStretch):t&&t(i)}}),function(t){"use strict";var g=t.fabric||(t.fabric={}),e=g.util.object.extend,s=g.util.object.clone,i=g.util.toFixed,r=g.util.string.capitalize,o=g.util.degreesToRadians,t=!g.isLikelyNode;g.Object||(g.Object=g.util.createClass(g.CommonMethods,{type:"object",originX:"left",originY:"top",top:0,left:0,width:0,height:0,scaleX:1,scaleY:1,flipX:!1,flipY:!1,opacity:1,angle:0,skewX:0,skewY:0,cornerSize:13,touchCornerSize:24,transparentCorners:!0,hoverCursor:null,moveCursor:null,padding:0,borderColor:"rgb(178,204,255)",borderDashArray:null,cornerColor:"rgb(178,204,255)",cornerStrokeColor:null,cornerStyle:"rect",cornerDashArray:null,centeredScaling:!1,centeredRotation:!0,fill:"rgb(0,0,0)",fillRule:"nonzero",globalCompositeOperation:"source-over",backgroundColor:"",selectionBackgroundColor:"",stroke:null,strokeWidth:1,strokeDashArray:null,strokeDashOffset:0,strokeLineCap:"butt",strokeLineJoin:"miter",strokeMiterLimit:4,shadow:null,borderOpacityWhenMoving:.4,borderScaleFactor:1,minScaleLimit:0,selectable:!0,evented:!0,visible:!0,hasControls:!0,hasBorders:!0,perPixelTargetFind:!1,includeDefaultValues:!0,lockMovementX:!1,lockMovementY:!1,lockRotation:!1,lockScalingX:!1,lockScalingY:!1,lockSkewingX:!1,lockSkewingY:!1,lockScalingFlip:!1,excludeFromExport:!1,objectCaching:t,statefullCache:!1,noScaleCache:!0,strokeUniform:!1,dirty:!0,__corner:0,paintFirst:"fill",activeOn:"down",stateProperties:"top left width height scaleX scaleY flipX flipY originX originY transformMatrix stroke strokeWidth strokeDashArray strokeLineCap strokeDashOffset strokeLineJoin strokeMiterLimit angle opacity fill globalCompositeOperation shadow visible backgroundColor skewX skewY fillRule paintFirst clipPath strokeUniform".split(" "),cacheProperties:"fill stroke strokeWidth strokeDashArray width height paintFirst strokeUniform strokeLineCap strokeDashOffset strokeLineJoin strokeMiterLimit backgroundColor clipPath".split(" "),colorProperties:"fill stroke backgroundColor".split(" "),clipPath:void 0,inverted:!1,absolutePositioned:!1,initialize:function(t){t&&this.setOptions(t)},_createCacheCanvas:function(){this._cacheProperties={},this._cacheCanvas=g.util.createCanvasElement(),this._cacheContext=this._cacheCanvas.getContext("2d"),this._updateCacheCanvas(),this.dirty=!0},_limitCacheSize:function(t){var e=g.perfLimitSizeTotal,i=t.width,r=t.height,n=g.maxCacheSideLimit,s=g.minCacheSideLimit;if(i<=n&&r<=n&&i*r<=e)return i<s&&(t.width=s),r<s&&(t.height=s),t;var o=g.util.limitDimsByArea(i/r,e),a=g.util.capValue,e=a(s,o.x,n),n=a(s,o.y,n);return e<i&&(t.zoomX/=i/e,t.width=e,t.capped=!0),n<r&&(t.zoomY/=r/n,t.height=n,t.capped=!0),t},_getCacheCanvasDimensions:function(){var t=this.getTotalObjectScaling(),e=this._getTransformedDimensions(0,0),i=e.x*t.scaleX/this.scaleX,e=e.y*t.scaleY/this.scaleY;return{width:2+i,height:2+e,zoomX:t.scaleX,zoomY:t.scaleY,x:i,y:e}},_updateCacheCanvas:function(){var t=this.canvas;if(this.noScaleCache&&t&&t._currentTransform){var e=t._currentTransform.target,i=t._currentTransform.action;if(this===e&&i.slice&&"scale"===i.slice(0,5))return!1}var r=this._cacheCanvas,n=this._limitCacheSize(this._getCacheCanvasDimensions()),s=g.minCacheSideLimit,o=n.width,a=n.height,c=n.zoomX,h=n.zoomY,l=o!==this.cacheWidth||a!==this.cacheHeight,u=this.zoomX!==c||this.zoomY!==h,f=l||u,d=0,t=0,e=!1;return l&&(i=this._cacheCanvas.width,u=this._cacheCanvas.height,e=(l=i<o||u<a)||(o<.9*i||a<.9*u)&&s<i&&s<u,l&&!n.capped&&(s<o||s<a)&&(d=.1*o,t=.1*a)),this instanceof g.Text&&this.path&&(e=f=!0,d+=this.getHeightOfLine(0)*this.zoomX,t+=this.getHeightOfLine(0)*this.zoomY),!!f&&(e?(r.width=Math.ceil(o+d),r.height=Math.ceil(a+t)):(this._cacheContext.setTransform(1,0,0,1,0,0),this._cacheContext.clearRect(0,0,r.width,r.height)),t=n.x/2,n=n.y/2,this.cacheTranslationX=Math.round(r.width/2-t)+t,this.cacheTranslationY=Math.round(r.height/2-n)+n,this.cacheWidth=o,this.cacheHeight=a,this._cacheContext.translate(this.cacheTranslationX,this.cacheTranslationY),this._cacheContext.scale(c,h),this.zoomX=c,this.zoomY=h,!0)},setOptions:function(t){this._setOptions(t),this._initGradient(t.fill,"fill"),this._initGradient(t.stroke,"stroke"),this._initPattern(t.fill,"fill"),this._initPattern(t.stroke,"stroke")},transform:function(t){var e=this.group&&!this.group._transformDone||this.group&&this.canvas&&t===this.canvas.contextTop,e=this.calcTransformMatrix(!e);t.transform(e[0],e[1],e[2],e[3],e[4],e[5])},toObject:function(t){var e=g.Object.NUM_FRACTION_DIGITS,e={type:this.type,version:g.version,originX:this.originX,originY:this.originY,left:i(this.left,e),top:i(this.top,e),width:i(this.width,e),height:i(this.height,e),fill:this.fill&&this.fill.toObject?this.fill.toObject():this.fill,stroke:this.stroke&&this.stroke.toObject?this.stroke.toObject():this.stroke,strokeWidth:i(this.strokeWidth,e),strokeDashArray:this.strokeDashArray&&this.strokeDashArray.concat(),strokeLineCap:this.strokeLineCap,strokeDashOffset:this.strokeDashOffset,strokeLineJoin:this.strokeLineJoin,strokeUniform:this.strokeUniform,strokeMiterLimit:i(this.strokeMiterLimit,e),scaleX:i(this.scaleX,e),scaleY:i(this.scaleY,e),angle:i(this.angle,e),flipX:this.flipX,flipY:this.flipY,opacity:i(this.opacity,e),shadow:this.shadow&&this.shadow.toObject?this.shadow.toObject():this.shadow,visible:this.visible,backgroundColor:this.backgroundColor,fillRule:this.fillRule,paintFirst:this.paintFirst,globalCompositeOperation:this.globalCompositeOperation,skewX:i(this.skewX,e),skewY:i(this.skewY,e)};return this.clipPath&&!this.clipPath.excludeFromExport&&(e.clipPath=this.clipPath.toObject(t),e.clipPath.inverted=this.clipPath.inverted,e.clipPath.absolutePositioned=this.clipPath.absolutePositioned),g.util.populateWithProperties(this,e,t),e=!this.includeDefaultValues?this._removeDefaultValues(e):e},toDatalessObject:function(t){return this.toObject(t)},_removeDefaultValues:function(e){var i=g.util.getKlass(e.type).prototype;return i.stateProperties.forEach(function(t){"left"!==t&&"top"!==t&&(e[t]===i[t]&&delete e[t],"[object Array]"===Object.prototype.toString.call(e[t])&&"[object Array]"===Object.prototype.toString.call(i[t])&&0===e[t].length&&0===i[t].length&&delete e[t])}),e},toString:function(){return"#<fabric."+r(this.type)+">"},getObjectScaling:function(){if(!this.group)return{scaleX:this.scaleX,scaleY:this.scaleY};var t=g.util.qrDecompose(this.calcTransformMatrix());return{scaleX:Math.abs(t.scaleX),scaleY:Math.abs(t.scaleY)}},getTotalObjectScaling:function(){var t,e=this.getObjectScaling(),i=e.scaleX,r=e.scaleY;return this.canvas&&(i*=(t=this.canvas.getZoom())*(e=this.canvas.getRetinaScaling()),r*=t*e),{scaleX:i,scaleY:r}},getObjectOpacity:function(){var t=this.opacity;return this.group&&(t*=this.group.getObjectOpacity()),t},_set:function(t,e){var i,r=this[t]!==e;return("scaleX"===t||"scaleY"===t)&&(e=this._constrainScale(e)),"scaleX"===t&&e<0?(this.flipX=!this.flipX,e*=-1):"scaleY"===t&&e<0?(this.flipY=!this.flipY,e*=-1):"shadow"!==t||!e||e instanceof g.Shadow?"dirty"===t&&this.group&&this.group.set("dirty",e):e=new g.Shadow(e),this[t]=e,r&&(i=this.group&&this.group.isOnACache(),-1<this.cacheProperties.indexOf(t)?(this.dirty=!0,i&&this.group.set("dirty",!0)):i&&-1<this.stateProperties.indexOf(t)&&this.group.set("dirty",!0)),this},setOnGroup:function(){},getViewportTransform:function(){return this.canvas&&this.canvas.viewportTransform?this.canvas.viewportTransform:g.iMatrix.concat()},isNotVisible:function(){return 0===this.opacity||!this.width&&!this.height&&0===this.strokeWidth||!this.visible},render:function(t){this.isNotVisible()||this.canvas&&this.canvas.skipOffscreen&&!this.group&&!this.isOnScreen()||(t.save(),this._setupCompositeOperation(t),this.drawSelectionBackground(t),this.transform(t),this._setOpacity(t),this._setShadow(t,this),this.shouldCache()?(this.renderCache(),this.drawCacheOnCanvas(t)):(this._removeCacheCanvas(),this.dirty=!1,this.drawObject(t),this.objectCaching&&this.statefullCache&&this.saveState({propertySet:"cacheProperties"})),t.restore())},renderCache:function(t){t=t||{},this._cacheCanvas||this._createCacheCanvas(),this.isCacheDirty()&&(this.statefullCache&&this.saveState({propertySet:"cacheProperties"}),this.drawObject(this._cacheContext,t.forClipping),this.dirty=!1)},_removeCacheCanvas:function(){this._cacheCanvas=null,this.cacheWidth=0,this.cacheHeight=0},hasStroke:function(){return this.stroke&&"transparent"!==this.stroke&&0!==this.strokeWidth},hasFill:function(){return this.fill&&"transparent"!==this.fill},needsItsOwnCache:function(){return!("stroke"!==this.paintFirst||!this.hasFill()||!this.hasStroke()||"object"!=typeof this.shadow)||!!this.clipPath},shouldCache:function(){return this.ownCaching=this.needsItsOwnCache()||this.objectCaching&&(!this.group||!this.group.isOnACache()),this.ownCaching},willDrawShadow:function(){return!!this.shadow&&(0!==this.shadow.offsetX||0!==this.shadow.offsetY)},drawClipPathOnCache:function(t){var e,i=this.clipPath;t.save(),i.inverted?t.globalCompositeOperation="destination-out":t.globalCompositeOperation="destination-in",i.absolutePositioned&&(e=g.util.invertTransform(this.calcTransformMatrix()),t.transform(e[0],e[1],e[2],e[3],e[4],e[5])),i.transform(t),t.scale(1/i.zoomX,1/i.zoomY),t.drawImage(i._cacheCanvas,-i.cacheTranslationX,-i.cacheTranslationY),t.restore()},drawObject:function(t,e){var i=this.fill,r=this.stroke;e?(this.fill="black",this.stroke="",this._setClippingProperties(t)):this._renderBackground(t),this._render(t),this._drawClipPath(t),this.fill=i,this.stroke=r},_drawClipPath:function(t){var e=this.clipPath;e&&(e.canvas=this.canvas,e.shouldCache(),e._transformDone=!0,e.renderCache({forClipping:!0}),this.drawClipPathOnCache(t))},drawCacheOnCanvas:function(t){t.scale(1/this.zoomX,1/this.zoomY),t.drawImage(this._cacheCanvas,-this.cacheTranslationX,-this.cacheTranslationY)},isCacheDirty:function(t){return!this.isNotVisible()&&(!(!this._cacheCanvas||t||!this._updateCacheCanvas())||!!(this.dirty||this.clipPath&&this.clipPath.absolutePositioned||this.statefullCache&&this.hasStateChanged("cacheProperties"))&&(this._cacheCanvas&&!t&&(e=this.cacheWidth/this.zoomX,t=this.cacheHeight/this.zoomY,this._cacheContext.clearRect(-e/2,-t/2,e,t)),!0));var e},_renderBackground:function(t){var e;this.backgroundColor&&(e=this._getNonTransformedDimensions(),t.fillStyle=this.backgroundColor,t.fillRect(-e.x/2,-e.y/2,e.x,e.y),this._removeShadow(t))},_setOpacity:function(t){this.group&&!this.group._transformDone?t.globalAlpha=this.getObjectOpacity():t.globalAlpha*=this.opacity},_setStrokeStyles:function(t,e){var i=e.stroke;i&&(t.lineWidth=e.strokeWidth,t.lineCap=e.strokeLineCap,t.lineDashOffset=e.strokeDashOffset,t.lineJoin=e.strokeLineJoin,t.miterLimit=e.strokeMiterLimit,i.toLive?"percentage"===i.gradientUnits||i.gradientTransform||i.patternTransform?this._applyPatternForTransformedGradient(t,i):(t.strokeStyle=i.toLive(t,this),this._applyPatternGradientTransform(t,i)):t.strokeStyle=e.stroke)},_setFillStyles:function(t,e){var i=e.fill;i&&(i.toLive?(t.fillStyle=i.toLive(t,this),this._applyPatternGradientTransform(t,e.fill)):t.fillStyle=i)},_setClippingProperties:function(t){t.globalAlpha=1,t.strokeStyle="transparent",t.fillStyle="#000000"},_setLineDash:function(t,e){e&&0!==e.length&&(1&e.length&&e.push.apply(e,e),t.setLineDash(e))},_renderControls:function(t,e){var i=this.getViewportTransform(),r=this.calcTransformMatrix(),n=(void 0!==(e=e||{}).hasBorders?e:this).hasBorders,s=(void 0!==e.hasControls?e:this).hasControls,r=g.util.multiplyTransformMatrices(i,r),r=g.util.qrDecompose(r);t.save(),t.translate(r.translateX,r.translateY),t.lineWidth=+this.borderScaleFactor,this.group||(t.globalAlpha=this.isMoving?this.borderOpacityWhenMoving:1),t.rotate(o(r.angle)),e.forActiveSelection||this.group?n&&this.drawBordersInGroup(t,r,e):n&&this.drawBorders(t,e),s&&this.drawControls(t,e),t.restore()},_setShadow:function(t){var e,i,r,n,s;this.shadow&&(e=this.shadow,r=(i=this.canvas)&&i.viewportTransform[0]||1,n=i&&i.viewportTransform[3]||1,s=e.nonScaling?{scaleX:1,scaleY:1}:this.getObjectScaling(),i&&i._isRetinaScaling()&&(r*=g.devicePixelRatio,n*=g.devicePixelRatio),t.shadowColor=e.color,t.shadowBlur=e.blur*g.browserShadowBlurConstant*(r+n)*(s.scaleX+s.scaleY)/4,t.shadowOffsetX=e.offsetX*r*s.scaleX,t.shadowOffsetY=e.offsetY*n*s.scaleY)},_removeShadow:function(t){this.shadow&&(t.shadowColor="",t.shadowBlur=t.shadowOffsetX=t.shadowOffsetY=0)},_applyPatternGradientTransform:function(t,e){if(!e||!e.toLive)return{offsetX:0,offsetY:0};var i=e.gradientTransform||e.patternTransform,r=-this.width/2+e.offsetX||0,n=-this.height/2+e.offsetY||0;return"percentage"===e.gradientUnits?t.transform(this.width,0,0,this.height,r,n):t.transform(1,0,0,1,r,n),i&&t.transform(i[0],i[1],i[2],i[3],i[4],i[5]),{offsetX:r,offsetY:n}},_renderPaintInOrder:function(t){"stroke"===this.paintFirst?(this._renderStroke(t),this._renderFill(t)):(this._renderFill(t),this._renderStroke(t))},_render:function(){},_renderFill:function(t){this.fill&&(t.save(),this._setFillStyles(t,this),"evenodd"===this.fillRule?t.fill("evenodd"):t.fill(),t.restore())},_renderStroke:function(t){var e;this.stroke&&0!==this.strokeWidth&&(this.shadow&&!this.shadow.affectStroke&&this._removeShadow(t),t.save(),this.strokeUniform&&this.group?(e=this.getObjectScaling(),t.scale(1/e.scaleX,1/e.scaleY)):this.strokeUniform&&t.scale(1/this.scaleX,1/this.scaleY),this._setLineDash(t,this.strokeDashArray),this._setStrokeStyles(t,this),t.stroke(),t.restore())},_applyPatternForTransformedGradient:function(t,e){var i,r=this._limitCacheSize(this._getCacheCanvasDimensions()),n=g.util.createCanvasElement(),s=this.canvas.getRetinaScaling(),o=r.x/this.scaleX/s,a=r.y/this.scaleY/s;n.width=o,n.height=a,(i=n.getContext("2d")).beginPath(),i.moveTo(0,0),i.lineTo(o,0),i.lineTo(o,a),i.lineTo(0,a),i.closePath(),i.translate(o/2,a/2),i.scale(r.zoomX/this.scaleX/s,r.zoomY/this.scaleY/s),this._applyPatternGradientTransform(i,e),i.fillStyle=e.toLive(t),i.fill(),t.translate(-this.width/2-this.strokeWidth/2,-this.height/2-this.strokeWidth/2),t.scale(s*this.scaleX/r.zoomX,s*this.scaleY/r.zoomY),t.strokeStyle=i.createPattern(n,"no-repeat")},_findCenterFromElement:function(){return{x:this.left+this.width/2,y:this.top+this.height/2}},_assignTransformMatrixProps:function(){var t;this.transformMatrix&&(t=g.util.qrDecompose(this.transformMatrix),this.flipX=!1,this.flipY=!1,this.set("scaleX",t.scaleX),this.set("scaleY",t.scaleY),this.angle=t.angle,this.skewX=t.skewX,this.skewY=0)},_removeTransformMatrix:function(t){var e=this._findCenterFromElement();this.transformMatrix&&(this._assignTransformMatrixProps(),e=g.util.transformPoint(e,this.transformMatrix)),this.transformMatrix=null,t&&(this.scaleX*=t.scaleX,this.scaleY*=t.scaleY,this.cropX=t.cropX,this.cropY=t.cropY,e.x+=t.offsetLeft,e.y+=t.offsetTop,this.width=t.width,this.height=t.height),this.setPositionByOrigin(e,"center","center")},clone:function(t,e){e=this.toObject(e);this.constructor.fromObject?this.constructor.fromObject(e,t):g.Object._fromObject("Object",e,t)},cloneAsImage:function(t,e){e=this.toCanvasElement(e);return t&&t(new g.Image(e)),this},toCanvasElement:function(t){t=t||{};var e=g.util,i=e.saveObjectTransform(this),r=this.group,n=this.shadow,s=Math.abs,o=(t.multiplier||1)*(t.enableRetinaScaling?g.devicePixelRatio:1);delete this.group,t.withoutTransform&&e.resetObjectTransform(this),t.withoutShadow&&(this.shadow=null);var a,c=g.util.createCanvasElement(),h=this.getBoundingRect(!0,!0),l=this.shadow,u={x:0,y:0};l&&(e=l.blur,a=l.nonScaling?{scaleX:1,scaleY:1}:this.getObjectScaling(),u.x=2*Math.round(s(l.offsetX)+e)*s(a.scaleX),u.y=2*Math.round(s(l.offsetY)+e)*s(a.scaleY)),a=h.width+u.x,u=h.height+u.y,c.width=Math.ceil(a),c.height=Math.ceil(u);u=new g.StaticCanvas(c,{enableRetinaScaling:!1,renderOnAddRemove:!1,skipOffscreen:!1});"jpeg"===t.format&&(u.backgroundColor="#fff"),this.setPositionByOrigin(new g.Point(u.width/2,u.height/2),"center","center");c=this.canvas;u.add(this);t=u.toCanvasElement(o||1,t);return this.shadow=n,this.set("canvas",c),r&&(this.group=r),this.set(i).setCoords(),u._objects=[],u.dispose(),u=null,t},toDataURL:function(t){return g.util.toDataURL(this.toCanvasElement(t=t||{}),t.format||"png",t.quality||1)},isType:function(t){return this.type===t},complexity:function(){return 1},toJSON:function(t){return this.toObject(t)},rotate:function(t){var e=("center"!==this.originX||"center"!==this.originY)&&this.centeredRotation;return e&&this._setOriginToCenter(),this.set("angle",t),e&&this._resetOrigin(),this},centerH:function(){return this.canvas&&this.canvas.centerObjectH(this),this},viewportCenterH:function(){return this.canvas&&this.canvas.viewportCenterObjectH(this),this},centerV:function(){return this.canvas&&this.canvas.centerObjectV(this),this},viewportCenterV:function(){return this.canvas&&this.canvas.viewportCenterObjectV(this),this},center:function(){return this.canvas&&this.canvas.centerObject(this),this},viewportCenter:function(){return this.canvas&&this.canvas.viewportCenterObject(this),this},getLocalPointer:function(t,e){e=e||this.canvas.getPointer(t);t=new g.Point(e.x,e.y),e=this._getLeftTopCoords();return{x:(t=this.angle?g.util.rotatePoint(t,e,o(-this.angle)):t).x-e.x,y:t.y-e.y}},_setupCompositeOperation:function(t){this.globalCompositeOperation&&(t.globalCompositeOperation=this.globalCompositeOperation)}}),g.util.createAccessors&&g.util.createAccessors(g.Object),e(g.Object.prototype,g.Observable),g.Object.NUM_FRACTION_DIGITS=2,g.Object._fromObject=function(t,e,i,r){var n=g[t];e=s(e,!0),g.util.enlivenPatterns([e.fill,e.stroke],function(t){void 0!==t[0]&&(e.fill=t[0]),void 0!==t[1]&&(e.stroke=t[1]),g.util.enlivenObjects([e.clipPath],function(t){e.clipPath=t[0];t=r?new n(e[r],e):new n(e);i&&i(t)})})},g.Object.__uid=0)}("undefined"!=typeof exports?exports:this),function(){var s=fabric.util.degreesToRadians,a={left:-.5,center:0,right:.5},c={top:-.5,center:0,bottom:.5};fabric.util.object.extend(fabric.Object.prototype,{translateToGivenOrigin:function(t,e,i,r,n){var s=t.x,o=t.y;return"string"==typeof e?e=a[e]:e-=.5,"string"==typeof r?r=a[r]:r-=.5,"string"==typeof i?i=c[i]:i-=.5,"string"==typeof n?n=c[n]:n-=.5,i=n-i,((r=r-e)||i)&&(e=this._getTransformedDimensions(),s=t.x+r*e.x,o=t.y+i*e.y),new fabric.Point(s,o)},translateToCenterPoint:function(t,e,i){i=this.translateToGivenOrigin(t,e,i,"center","center");return this.angle?fabric.util.rotatePoint(i,t,s(this.angle)):i},translateToOriginPoint:function(t,e,i){i=this.translateToGivenOrigin(t,"center","center",e,i);return this.angle?fabric.util.rotatePoint(i,t,s(this.angle)):i},getCenterPoint:function(){var t=new fabric.Point(this.left,this.top);return this.translateToCenterPoint(t,this.originX,this.originY)},getPointByOrigin:function(t,e){var i=this.getCenterPoint();return this.translateToOriginPoint(i,t,e)},toLocalPoint:function(t,e,i){var r=this.getCenterPoint(),i=void 0!==e&&void 0!==i?this.translateToGivenOrigin(r,"center","center",e,i):new fabric.Point(this.left,this.top),t=new fabric.Point(t.x,t.y);return(t=this.angle?fabric.util.rotatePoint(t,r,-s(this.angle)):t).subtractEquals(i)},setPositionByOrigin:function(t,e,i){i=this.translateToCenterPoint(t,e,i),i=this.translateToOriginPoint(i,this.originX,this.originY);this.set("left",i.x),this.set("top",i.y)},adjustPosition:function(t){var e=s(this.angle),i=this.getScaledWidth(),r=fabric.util.cos(e)*i,n=fabric.util.sin(e)*i,e="string"==typeof this.originX?a[this.originX]:this.originX-.5,i="string"==typeof t?a[t]:t-.5;this.left+=r*(i-e),this.top+=n*(i-e),this.setCoords(),this.originX=t},_setOriginToCenter:function(){this._originalOriginX=this.originX,this._originalOriginY=this.originY;var t=this.getCenterPoint();this.originX="center",this.originY="center",this.left=t.x,this.top=t.y},_resetOrigin:function(){var t=this.translateToOriginPoint(this.getCenterPoint(),this._originalOriginX,this._originalOriginY);this.originX=this._originalOriginX,this.originY=this._originalOriginY,this.left=t.x,this.top=t.y,this._originalOriginX=null,this._originalOriginY=null},_getLeftTopCoords:function(){return this.translateToOriginPoint(this.getCenterPoint(),"left","top")}})}(),function(){var s=fabric.util,o=s.degreesToRadians,a=s.multiplyTransformMatrices,c=s.transformPoint;s.object.extend(fabric.Object.prototype,{oCoords:null,aCoords:null,lineCoords:null,ownMatrixCache:null,matrixCache:null,controls:{},_getCoords:function(t,e){return e?t?this.calcACoords():this.calcLineCoords():(this.aCoords&&this.lineCoords||this.setCoords(!0),t?this.aCoords:this.lineCoords)},getCoords:function(t,e){return e=this._getCoords(t,e),[new fabric.Point(e.tl.x,e.tl.y),new fabric.Point(e.tr.x,e.tr.y),new fabric.Point(e.br.x,e.br.y),new fabric.Point(e.bl.x,e.bl.y)]},intersectsWithRect:function(t,e,i,r){r=this.getCoords(i,r);return"Intersection"===fabric.Intersection.intersectPolygonRectangle(r,t,e).status},intersectsWithObject:function(t,e,i){return"Intersection"===fabric.Intersection.intersectPolygonPolygon(this.getCoords(e,i),t.getCoords(e,i)).status||t.isContainedWithinObject(this,e,i)||this.isContainedWithinObject(t,e,i)},isContainedWithinObject:function(t,e,i){for(var r=this.getCoords(e,i),e=e?t.aCoords:t.lineCoords,n=0,s=t._getImageLines(e);n<4;n++)if(!t.containsPoint(r[n],s))return!1;return!0},isContainedWithinRect:function(t,e,i,r){r=this.getBoundingRect(i,r);return r.left>=t.x&&r.left+r.width<=e.x&&r.top>=t.y&&r.top+r.height<=e.y},containsPoint:function(t,e,i,r){r=this._getCoords(i,r),e=e||this._getImageLines(r),e=this._findCrossPoints(t,e);return 0!==e&&e%2==1},isOnScreen:function(t){if(!this.canvas)return!1;var e=this.canvas.vptCoords.tl,i=this.canvas.vptCoords.br;return!!this.getCoords(!0,t).some(function(t){return t.x<=i.x&&t.x>=e.x&&t.y<=i.y&&t.y>=e.y})||(!!this.intersectsWithRect(e,i,!0,t)||this._containsCenterOfCanvas(e,i,t))},_containsCenterOfCanvas:function(t,e,i){e={x:(t.x+e.x)/2,y:(t.y+e.y)/2};return!!this.containsPoint(e,null,!0,i)},isPartiallyOnScreen:function(t){if(!this.canvas)return!1;var e=this.canvas.vptCoords.tl,i=this.canvas.vptCoords.br;return!!this.intersectsWithRect(e,i,!0,t)||this.getCoords(!0,t).every(function(t){return(t.x>=i.x||t.x<=e.x)&&(t.y>=i.y||t.y<=e.y)})&&this._containsCenterOfCanvas(e,i,t)},_getImageLines:function(t){return{topline:{o:t.tl,d:t.tr},rightline:{o:t.tr,d:t.br},bottomline:{o:t.br,d:t.bl},leftline:{o:t.bl,d:t.tl}}},_findCrossPoints:function(t,e){var i,r,n,s=0;for(n in e)if(!((r=e[n]).o.y<t.y&&r.d.y<t.y||r.o.y>=t.y&&r.d.y>=t.y||((r.o.x===r.d.x&&r.o.x>=t.x?r.o.x:(i=(r.d.y-r.o.y)/(r.d.x-r.o.x),-(t.y-0*t.x-(r.o.y-i*r.o.x))/(0-i)))>=t.x&&(s+=1),2!==s)))break;return s},getBoundingRect:function(t,e){e=this.getCoords(t,e);return s.makeBoundingBoxFromPoints(e)},getScaledWidth:function(){return this._getTransformedDimensions().x},getScaledHeight:function(){return this._getTransformedDimensions().y},_constrainScale:function(t){return Math.abs(t)<this.minScaleLimit?t<0?-this.minScaleLimit:this.minScaleLimit:0===t?1e-4:t},scale:function(t){return this._set("scaleX",t),this._set("scaleY",t),this.setCoords()},scaleToWidth:function(t,e){e=this.getBoundingRect(e).width/this.getScaledWidth();return this.scale(t/this.width/e)},scaleToHeight:function(t,e){e=this.getBoundingRect(e).height/this.getScaledHeight();return this.scale(t/this.height/e)},calcCoords:function(t){return t?this.calcACoords():this.calcOCoords()},calcLineCoords:function(){var t=this.getViewportTransform(),e=this.padding,i=o(this.angle),r=s.cos(i)*e,n=s.sin(i)*e,i=r+n,r=r-n,n=this.calcACoords(),t={tl:c(n.tl,t),tr:c(n.tr,t),bl:c(n.bl,t),br:c(n.br,t)};return e&&(t.tl.x-=r,t.tl.y-=i,t.tr.x+=i,t.tr.y-=r,t.bl.x-=i,t.bl.y+=r,t.br.x+=r,t.br.y+=i),t},calcOCoords:function(){var t=this._calcRotateMatrix(),e=this._calcTranslateMatrix(),i=this.getViewportTransform(),e=a(i,e),r=a(e,t),r=a(r,[1/i[0],0,0,1/i[3],0,0]),n=this._calculateCurrentDimensions(),s={};return this.forEachControl(function(t,e,i){s[e]=t.positionHandler(n,r,i)}),s},calcACoords:function(){var t=this._calcRotateMatrix(),e=this._calcTranslateMatrix(),i=a(e,t),e=this._getTransformedDimensions(),t=e.x/2,e=e.y/2;return{tl:c({x:-t,y:-e},i),tr:c({x:t,y:-e},i),bl:c({x:-t,y:e},i),br:c({x:t,y:e},i)}},setCoords:function(t){return this.aCoords=this.calcACoords(),this.lineCoords=this.group?this.aCoords:this.calcLineCoords(),t||(this.oCoords=this.calcOCoords(),this._setCornerCoords&&this._setCornerCoords()),this},_calcRotateMatrix:function(){return s.calcRotateMatrix(this)},_calcTranslateMatrix:function(){var t=this.getCenterPoint();return[1,0,0,1,t.x,t.y]},transformMatrixKey:function(t){var e="_",i="";return(i=!t&&this.group?this.group.transformMatrixKey(t)+e:i)+this.top+e+this.left+e+this.scaleX+e+this.scaleY+e+this.skewX+e+this.skewY+e+this.angle+e+this.originX+e+this.originY+e+this.width+e+this.height+e+this.strokeWidth+this.flipX+this.flipY},calcTransformMatrix:function(t){var e=this.calcOwnMatrix();if(t||!this.group)return e;var i=this.transformMatrixKey(t),t=this.matrixCache||(this.matrixCache={});return t.key===i?t.value:(this.group&&(e=a(this.group.calcTransformMatrix(!1),e)),t.key=i,t.value=e)},calcOwnMatrix:function(){var t=this.transformMatrixKey(!0),e=this.ownMatrixCache||(this.ownMatrixCache={});if(e.key===t)return e.value;var i=this._calcTranslateMatrix(),i={angle:this.angle,translateX:i[4],translateY:i[5],scaleX:this.scaleX,scaleY:this.scaleY,skewX:this.skewX,skewY:this.skewY,flipX:this.flipX,flipY:this.flipY};return e.key=t,e.value=s.composeMatrix(i),e.value},_calcDimensionsTransformMatrix:function(t,e,i){return s.calcDimensionsMatrix({skewX:t,skewY:e,scaleX:this.scaleX*(i&&this.flipX?-1:1),scaleY:this.scaleY*(i&&this.flipY?-1:1)})},_getNonTransformedDimensions:function(){var t=this.strokeWidth;return{x:this.width+t,y:this.height+t}},_getTransformedDimensions:function(t,e){void 0===t&&(t=this.skewX),void 0===e&&(e=this.skewY);var i,r=0===t&&0===e,n=this.strokeUniform?(i=this.width,this.height):(i=(n=this._getNonTransformedDimensions()).x,n.y);if(r)return this._finalizeDimensions(i*this.scaleX,n*this.scaleY);e=s.sizeAfterTransform(i,n,{scaleX:this.scaleX,scaleY:this.scaleY,skewX:t,skewY:e});return this._finalizeDimensions(e.x,e.y)},_finalizeDimensions:function(t,e){return this.strokeUniform?{x:t+this.strokeWidth,y:e+this.strokeWidth}:{x:t,y:e}},_calculateCurrentDimensions:function(){var t=this.getViewportTransform(),e=this._getTransformedDimensions();return c(e,t,!0).scalarAdd(2*this.padding)}})}(),fabric.util.object.extend(fabric.Object.prototype,{sendToBack:function(){return this.group?fabric.StaticCanvas.prototype.sendToBack.call(this.group,this):this.canvas&&this.canvas.sendToBack(this),this},bringToFront:function(){return this.group?fabric.StaticCanvas.prototype.bringToFront.call(this.group,this):this.canvas&&this.canvas.bringToFront(this),this},sendBackwards:function(t){return this.group?fabric.StaticCanvas.prototype.sendBackwards.call(this.group,this,t):this.canvas&&this.canvas.sendBackwards(this,t),this},bringForward:function(t){return this.group?fabric.StaticCanvas.prototype.bringForward.call(this.group,this,t):this.canvas&&this.canvas.bringForward(this,t),this},moveTo:function(t){return this.group&&"activeSelection"!==this.group.type?fabric.StaticCanvas.prototype.moveTo.call(this.group,this,t):this.canvas&&this.canvas.moveTo(this,t),this}}),function(){function u(t,e){if(e){if(e.toLive)return t+": url(#SVGID_"+e.id+"); ";var i=new fabric.Color(e),e=t+": "+i.toRgb()+"; ",i=i.getAlpha();return 1!==i&&(e+=t+"-opacity: "+i.toString()+"; "),e}return t+": none; "}var i=fabric.util.toFixed;fabric.util.object.extend(fabric.Object.prototype,{getSvgStyles:function(t){var e=this.fillRule||"nonzero",i=this.strokeWidth||"0",r=this.strokeDashArray?this.strokeDashArray.join(" "):"none",n=this.strokeDashOffset||"0",s=this.strokeLineCap||"butt",o=this.strokeLineJoin||"miter",a=this.strokeMiterLimit||"4",c=void 0!==this.opacity?this.opacity:"1",h=this.visible?"":" visibility: hidden;",l=t?"":this.getSvgFilter(),t=u("fill",this.fill);return[u("stroke",this.stroke),"stroke-width: ",i,"; ","stroke-dasharray: ",r,"; ","stroke-linecap: ",s,"; ","stroke-dashoffset: ",n,"; ","stroke-linejoin: ",o,"; ","stroke-miterlimit: ",a,"; ",t,"fill-rule: ",e,"; ","opacity: ",c,";",l,h].join("")},getSvgSpanStyles:function(t,e){var i="; ",r=t.fontFamily?"font-family: "+(-1===t.fontFamily.indexOf("'")&&-1===t.fontFamily.indexOf('"')?"'"+t.fontFamily+"'":t.fontFamily)+i:"",n=t.strokeWidth?"stroke-width: "+t.strokeWidth+i:"",r=r,s=t.fontSize?"font-size: "+t.fontSize+"px"+i:"",o=t.fontStyle?"font-style: "+t.fontStyle+i:"",a=t.fontWeight?"font-weight: "+t.fontWeight+i:"",c=t.fill?u("fill",t.fill):"",h=t.stroke?u("stroke",t.stroke):"",l=this.getSvgTextDecoration(t);return[h,n,r,s,o,a,l=l&&"text-decoration: "+l+i,c,t.deltaY?"baseline-shift: "+-t.deltaY+"; ":"",e?"white-space: pre; ":""].join("")},getSvgTextDecoration:function(e){return["overline","underline","line-through"].filter(function(t){return e[t.replace("-","")]}).join(" ")},getSvgFilter:function(){return this.shadow?"filter: url(#SVGID_"+this.shadow.id+");":""},getSvgCommons:function(){return[this.id?'id="'+this.id+'" ':"",this.clipPath?'clip-path="url(#'+this.clipPath.clipPathId+')" ':""].join("")},getSvgTransform:function(t,e){t=t?this.calcTransformMatrix():this.calcOwnMatrix();return'transform="'+fabric.util.matrixToSVG(t)+(e||"")+'" '},_setSVGBg:function(t){var e;this.backgroundColor&&(e=fabric.Object.NUM_FRACTION_DIGITS,t.push("\t\t<rect ",this._getFillAttributes(this.backgroundColor),' x="',i(-this.width/2,e),'" y="',i(-this.height/2,e),'" width="',i(this.width,e),'" height="',i(this.height,e),'"></rect>\n'))},toSVG:function(t){return this._createBaseSVGMarkup(this._toSVG(t),{reviver:t})},toClipPathSVG:function(t){return"\t"+this._createBaseClipPathSVGMarkup(this._toSVG(t),{reviver:t})},_createBaseClipPathSVGMarkup:function(t,e){var i=(e=e||{}).reviver,r=e.additionalTransform||"",e=[this.getSvgTransform(!0,r),this.getSvgCommons()].join(""),r=t.indexOf("COMMON_PARTS");return t[r]=e,i?i(t.join("")):t.join("")},_createBaseSVGMarkup:function(t,e){var i,r=(e=e||{}).noStyle,n=e.reviver,s=r?"":'style="'+this.getSvgStyles()+'" ',o=e.withShadow?'style="'+this.getSvgFilter()+'" ':"",a=this.clipPath,c=this.strokeUniform?'vector-effect="non-scaling-stroke" ':"",h=a&&a.absolutePositioned,l=this.stroke,u=this.fill,f=this.shadow,d=[],g=t.indexOf("COMMON_PARTS"),e=e.additionalTransform;return a&&(a.clipPathId="CLIPPATH_"+fabric.Object.__uid++,i='<clipPath id="'+a.clipPathId+'" >\n'+a.toClipPathSVG(n)+"</clipPath>\n"),h&&d.push("<g ",o,this.getSvgCommons()," >\n"),d.push("<g ",this.getSvgTransform(!1),h?"":o+this.getSvgCommons()," >\n"),e=[s,c,r?"":this.addPaintOrder()," ",e?'transform="'+e+'" ':""].join(""),t[g]=e,u&&u.toLive&&d.push(u.toSVG(this)),l&&l.toLive&&d.push(l.toSVG(this)),f&&d.push(f.toSVG(this)),a&&d.push(i),d.push(t.join("")),d.push("</g>\n"),h&&d.push("</g>\n"),n?n(d.join("")):d.join("")},addPaintOrder:function(){return"fill"!==this.paintFirst?' paint-order="'+this.paintFirst+'" ':""}})}(),function(){var n=fabric.util.object.extend,r="stateProperties";function s(e,t,i){var r={};i.forEach(function(t){r[t]=e[t]}),n(e[t],r,!0)}fabric.util.object.extend(fabric.Object.prototype,{hasStateChanged:function(t){var e="_"+(t=t||r);return Object.keys(this[e]).length<this[t].length||!function t(e,i,r){if(e===i)return 1;if(Array.isArray(e)){if(Array.isArray(i)&&e.length===i.length){for(var n=0,s=e.length;n<s;n++)if(!t(e[n],i[n]))return;return 1}}else if(e&&"object"==typeof e){var o,a=Object.keys(e);if(i&&"object"==typeof i&&(r||a.length===Object.keys(i).length)){for(n=0,s=a.length;n<s;n++)if("canvas"!==(o=a[n])&&"group"!==o&&!t(e[o],i[o]))return;return 1}}}(this[e],this,!0)},saveState:function(t){var e=t&&t.propertySet||r,i="_"+e;return this[i]?(s(this,i,this[e]),t&&t.stateProperties&&s(this,i,t.stateProperties),this):this.setupState(t)},setupState:function(t){var e=(t=t||{}).propertySet||r;return this["_"+(t.propertySet=e)]={},this.saveState(t),this}})}(),function(){var n=fabric.util.degreesToRadians;fabric.util.object.extend(fabric.Object.prototype,{_findTargetCorner:function(t,e){if(!this.hasControls||this.group||!this.canvas||this.canvas._activeObject!==this)return!1;var i,r,n=t.x,s=t.y,o=Object.keys(this.oCoords),a=o.length-1;for(this.__corner=0;0<=a;a--)if(r=o[a],this.isControlVisible(r)&&(i=this._getImageLines(e?this.oCoords[r].touchCorner:this.oCoords[r].corner),0!==(i=this._findCrossPoints({x:n,y:s},i))&&i%2==1))return this.__corner=r;return!1},forEachControl:function(t){for(var e in this.controls)t(this.controls[e],e,this)},_setCornerCoords:function(){var t,e=this.oCoords;for(t in e){var i=this.controls[t];e[t].corner=i.calcCornerCoords(this.angle,this.cornerSize,e[t].x,e[t].y,!1),e[t].touchCorner=i.calcCornerCoords(this.angle,this.touchCornerSize,e[t].x,e[t].y,!0)}},drawSelectionBackground:function(t){if(!this.selectionBackgroundColor||this.canvas&&!this.canvas.interactive||this.canvas&&this.canvas._activeObject!==this)return this;t.save();var e=this.getCenterPoint(),i=this._calculateCurrentDimensions(),r=this.canvas.viewportTransform;return t.translate(e.x,e.y),t.scale(1/r[0],1/r[3]),t.rotate(n(this.angle)),t.fillStyle=this.selectionBackgroundColor,t.fillRect(-i.x/2,-i.y/2,i.x,i.y),t.restore(),this},drawBorders:function(r,t){t=t||{};var e=this._calculateCurrentDimensions(),i=this.borderScaleFactor,n=e.x+i,s=e.y+i,i=(void 0!==t.hasControls?t:this).hasControls,o=!1;return r.save(),r.strokeStyle=t.borderColor||this.borderColor,this._setLineDash(r,t.borderDashArray||this.borderDashArray),r.strokeRect(-n/2,-s/2,n,s),i&&(r.beginPath(),this.forEachControl(function(t,e,i){t.withConnection&&t.getVisibility(i,e)&&(o=!0,r.moveTo(t.x*n,t.y*s),r.lineTo(t.x*n+t.offsetX,t.y*s+t.offsetY))}),o&&r.stroke()),r.restore(),this},drawBordersInGroup:function(t,e,i){i=i||{};var r=fabric.util.sizeAfterTransform(this.width,this.height,e),n=this.strokeWidth,s=this.strokeUniform,o=this.borderScaleFactor,a=r.x+n*(s?this.canvas.getZoom():e.scaleX)+o,o=r.y+n*(s?this.canvas.getZoom():e.scaleY)+o;return t.save(),this._setLineDash(t,i.borderDashArray||this.borderDashArray),t.strokeStyle=i.borderColor||this.borderColor,t.strokeRect(-a/2,-o/2,a,o),t.restore(),this},drawControls:function(r,n){n=n||{},r.save();var s,o,t=this.canvas.getRetinaScaling();return r.setTransform(t,0,0,t,0,0),r.strokeStyle=r.fillStyle=n.cornerColor||this.cornerColor,this.transparentCorners||(r.strokeStyle=n.cornerStrokeColor||this.cornerStrokeColor),this._setLineDash(r,n.cornerDashArray||this.cornerDashArray),this.setCoords(),this.group&&(s=this.group.calcTransformMatrix()),this.forEachControl(function(t,e,i){o=i.oCoords[e],t.getVisibility(i,e)&&(s&&(o=fabric.util.transformPoint(o,s)),t.render(r,o.x,o.y,n,i))}),r.restore(),this},isControlVisible:function(t){return this.controls[t]&&this.controls[t].getVisibility(this,t)},setControlVisible:function(t,e){return this._controlsVisibility||(this._controlsVisibility={}),this._controlsVisibility[t]=e,this},setControlsVisibility:function(t){for(var e in t=t||{})this.setControlVisible(e,t[e]);return this},onDeselect:function(){},onSelect:function(){}})}(),fabric.util.object.extend(fabric.StaticCanvas.prototype,{FX_DURATION:500,fxCenterObjectH:function(e,t){function i(){}var r=(t=t||{}).onComplete||i,n=t.onChange||i,s=this;return fabric.util.animate({startValue:e.left,endValue:this.getCenter().left,duration:this.FX_DURATION,onChange:function(t){e.set("left",t),s.requestRenderAll(),n()},onComplete:function(){e.setCoords(),r()}}),this},fxCenterObjectV:function(e,t){function i(){}var r=(t=t||{}).onComplete||i,n=t.onChange||i,s=this;return fabric.util.animate({startValue:e.top,endValue:this.getCenter().top,duration:this.FX_DURATION,onChange:function(t){e.set("top",t),s.requestRenderAll(),n()},onComplete:function(){e.setCoords(),r()}}),this},fxRemove:function(e,t){function i(){}var r=(t=t||{}).onComplete||i,n=t.onChange||i,s=this;return fabric.util.animate({startValue:e.opacity,endValue:0,duration:this.FX_DURATION,onChange:function(t){e.set("opacity",t),s.requestRenderAll(),n()},onComplete:function(){s.remove(e),r()}}),this}}),fabric.util.object.extend(fabric.Object.prototype,{animate:function(){if(arguments[0]&&"object"==typeof arguments[0]){var t,e,i=[];for(t in arguments[0])i.push(t);for(var r=0,n=i.length;r<n;r++)t=i[r],e=r!==n-1,this._animate(t,arguments[0][t],arguments[1],e)}else this._animate.apply(this,arguments);return this},_animate:function(r,t,n,s){var o,a=this;t=t.toString(),n=n?fabric.util.object.clone(n):{},~r.indexOf(".")&&(o=r.split("."));var e=-1<a.colorProperties.indexOf(r)||o&&-1<a.colorProperties.indexOf(o[1]),i=o?this.get(o[0])[o[1]]:this.get(r);"from"in n||(n.from=i),e||(t=~t.indexOf("=")?i+parseFloat(t.replace("=","")):parseFloat(t));t={startValue:n.from,endValue:t,byValue:n.by,easing:n.easing,duration:n.duration,abort:n.abort&&function(t,e,i){return n.abort.call(a,t,e,i)},onChange:function(t,e,i){o?a[o[0]][o[1]]=t:a.set(r,t),s||n.onChange&&n.onChange(t,e,i)},onComplete:function(t,e,i){s||(a.setCoords(),n.onComplete&&n.onComplete(t,e,i))}};return e?fabric.util.animateColor(t.startValue,t.endValue,t.duration,t):fabric.util.animate(t)}}),function(t){"use strict";var n=t.fabric||(t.fabric={}),s=n.util.object.extend,r=n.util.object.clone,i={x1:1,x2:1,y1:1,y2:1};function e(t,e){var i=t.origin,r=t.axis1,n=t.axis2,s=t.dimension,o=e.nearest,a=e.center,c=e.farthest;return function(){switch(this.get(i)){case o:return Math.min(this.get(r),this.get(n));case a:return Math.min(this.get(r),this.get(n))+.5*this.get(s);case c:return Math.max(this.get(r),this.get(n))}}}n.Line?n.warn("fabric.Line is already defined"):(n.Line=n.util.createClass(n.Object,{type:"line",x1:0,y1:0,x2:0,y2:0,cacheProperties:n.Object.prototype.cacheProperties.concat("x1","x2","y1","y2"),initialize:function(t,e){t=t||[0,0,0,0],this.callSuper("initialize",e),this.set("x1",t[0]),this.set("y1",t[1]),this.set("x2",t[2]),this.set("y2",t[3]),this._setWidthHeight(e)},_setWidthHeight:function(t){t=t||{},this.width=Math.abs(this.x2-this.x1),this.height=Math.abs(this.y2-this.y1),this.left="left"in t?t.left:this._getLeftToOriginX(),this.top="top"in t?t.top:this._getTopToOriginY()},_set:function(t,e){return this.callSuper("_set",t,e),void 0!==i[t]&&this._setWidthHeight(),this},_getLeftToOriginX:e({origin:"originX",axis1:"x1",axis2:"x2",dimension:"width"},{nearest:"left",center:"center",farthest:"right"}),_getTopToOriginY:e({origin:"originY",axis1:"y1",axis2:"y2",dimension:"height"},{nearest:"top",center:"center",farthest:"bottom"}),_render:function(t){t.beginPath();var e=this.calcLinePoints();t.moveTo(e.x1,e.y1),t.lineTo(e.x2,e.y2),t.lineWidth=this.strokeWidth;e=t.strokeStyle;t.strokeStyle=this.stroke||t.fillStyle,this.stroke&&this._renderStroke(t),t.strokeStyle=e},_findCenterFromElement:function(){return{x:(this.x1+this.x2)/2,y:(this.y1+this.y2)/2}},toObject:function(t){return s(this.callSuper("toObject",t),this.calcLinePoints())},_getNonTransformedDimensions:function(){var t=this.callSuper("_getNonTransformedDimensions");return"butt"===this.strokeLineCap&&(0===this.width&&(t.y-=this.strokeWidth),0===this.height&&(t.x-=this.strokeWidth)),t},calcLinePoints:function(){var t=this.x1<=this.x2?-1:1,e=this.y1<=this.y2?-1:1,i=t*this.width*.5,r=e*this.height*.5;return{x1:i,x2:t*this.width*-.5,y1:r,y2:e*this.height*-.5}},_toSVG:function(){var t=this.calcLinePoints();return["<line ","COMMON_PARTS",'x1="',t.x1,'" y1="',t.y1,'" x2="',t.x2,'" y2="',t.y2,'" />\n']}}),n.Line.ATTRIBUTE_NAMES=n.SHARED_ATTRIBUTES.concat("x1 y1 x2 y2".split(" ")),n.Line.fromElement=function(t,e,i){i=i||{};var r=n.parseAttributes(t,n.Line.ATTRIBUTE_NAMES),t=[r.x1||0,r.y1||0,r.x2||0,r.y2||0];e(new n.Line(t,s(r,i)))},n.Line.fromObject=function(t,e){var i=r(t,!0);i.points=[t.x1,t.y1,t.x2,t.y2],n.Object._fromObject("Line",i,function(t){delete t.points,e&&e(t)},"points")})}("undefined"!=typeof exports?exports:this),function(t){"use strict";var s=t.fabric||(t.fabric={}),o=Math.PI;s.Circle?s.warn("fabric.Circle is already defined."):(s.Circle=s.util.createClass(s.Object,{type:"circle",radius:0,startAngle:0,endAngle:2*o,cacheProperties:s.Object.prototype.cacheProperties.concat("radius","startAngle","endAngle"),_set:function(t,e){return this.callSuper("_set",t,e),"radius"===t&&this.setRadius(e),this},toObject:function(t){return this.callSuper("toObject",["radius","startAngle","endAngle"].concat(t))},_toSVG:function(){var t,e,i,r,n=(this.endAngle-this.startAngle)%(2*o);return 0==n?["<circle ","COMMON_PARTS",'cx="0" cy="0" ','r="',this.radius,'" />\n']:(t=s.util.cos(this.startAngle)*this.radius,e=s.util.sin(this.startAngle)*this.radius,i=s.util.cos(this.endAngle)*this.radius,r=s.util.sin(this.endAngle)*this.radius,['<path d="M '+t+" "+e," A "+this.radius+" "+this.radius," 0 ",+(o<n?"1":"0")+" 1"," "+i+" "+r,'" ',"COMMON_PARTS"," />\n"])},_render:function(t){t.beginPath(),t.arc(0,0,this.radius,this.startAngle,this.endAngle,!1),this._renderPaintInOrder(t)},getRadiusX:function(){return this.get("radius")*this.get("scaleX")},getRadiusY:function(){return this.get("radius")*this.get("scaleY")},setRadius:function(t){return this.radius=t,this.set("width",2*t).set("height",2*t)}}),s.Circle.ATTRIBUTE_NAMES=s.SHARED_ATTRIBUTES.concat("cx cy r".split(" ")),s.Circle.fromElement=function(t,e){var i=s.parseAttributes(t,s.Circle.ATTRIBUTE_NAMES);if(!("radius"in(t=i)&&0<=t.radius))throw new Error("value of `r` attribute is required and can not be negative");i.left=(i.left||0)-i.radius,i.top=(i.top||0)-i.radius,e(new s.Circle(i))},s.Circle.fromObject=function(t,e){s.Object._fromObject("Circle",t,e)})}("undefined"!=typeof exports?exports:this),function(t){"use strict";var i=t.fabric||(t.fabric={});i.Triangle?i.warn("fabric.Triangle is already defined"):(i.Triangle=i.util.createClass(i.Object,{type:"triangle",width:100,height:100,_render:function(t){var e=this.width/2,i=this.height/2;t.beginPath(),t.moveTo(-e,i),t.lineTo(0,-i),t.lineTo(e,i),t.closePath(),this._renderPaintInOrder(t)},_toSVG:function(){var t=this.width/2,e=this.height/2;return["<polygon ","COMMON_PARTS",'points="',[-t+" "+e,"0 "+-e,t+" "+e].join(","),'" />']}}),i.Triangle.fromObject=function(t,e){return i.Object._fromObject("Triangle",t,e)})}("undefined"!=typeof exports?exports:this),function(t){"use strict";var i=t.fabric||(t.fabric={}),e=2*Math.PI;i.Ellipse?i.warn("fabric.Ellipse is already defined."):(i.Ellipse=i.util.createClass(i.Object,{type:"ellipse",rx:0,ry:0,cacheProperties:i.Object.prototype.cacheProperties.concat("rx","ry"),initialize:function(t){this.callSuper("initialize",t),this.set("rx",t&&t.rx||0),this.set("ry",t&&t.ry||0)},_set:function(t,e){switch(this.callSuper("_set",t,e),t){case"rx":this.rx=e,this.set("width",2*e);break;case"ry":this.ry=e,this.set("height",2*e)}return this},getRx:function(){return this.get("rx")*this.get("scaleX")},getRy:function(){return this.get("ry")*this.get("scaleY")},toObject:function(t){return this.callSuper("toObject",["rx","ry"].concat(t))},_toSVG:function(){return["<ellipse ","COMMON_PARTS",'cx="0" cy="0" ','rx="',this.rx,'" ry="',this.ry,'" />\n']},_render:function(t){t.beginPath(),t.save(),t.transform(1,0,0,this.ry/this.rx,0,0),t.arc(0,0,this.rx,0,e,!1),t.restore(),this._renderPaintInOrder(t)}}),i.Ellipse.ATTRIBUTE_NAMES=i.SHARED_ATTRIBUTES.concat("cx cy rx ry".split(" ")),i.Ellipse.fromElement=function(t,e){t=i.parseAttributes(t,i.Ellipse.ATTRIBUTE_NAMES);t.left=(t.left||0)-t.rx,t.top=(t.top||0)-t.ry,e(new i.Ellipse(t))},i.Ellipse.fromObject=function(t,e){i.Object._fromObject("Ellipse",t,e)})}("undefined"!=typeof exports?exports:this),function(t){"use strict";var r=t.fabric||(t.fabric={}),n=r.util.object.extend;r.Rect?r.warn("fabric.Rect is already defined"):(r.Rect=r.util.createClass(r.Object,{stateProperties:r.Object.prototype.stateProperties.concat("rx","ry"),type:"rect",rx:0,ry:0,cacheProperties:r.Object.prototype.cacheProperties.concat("rx","ry"),initialize:function(t){this.callSuper("initialize",t),this._initRxRy()},_initRxRy:function(){this.rx&&!this.ry?this.ry=this.rx:this.ry&&!this.rx&&(this.rx=this.ry)},_render:function(t){var e=this.rx?Math.min(this.rx,this.width/2):0,i=this.ry?Math.min(this.ry,this.height/2):0,r=this.width,n=this.height,s=-this.width/2,o=-this.height/2,a=0!==e||0!==i,c=.4477152502;t.beginPath(),t.moveTo(s+e,o),t.lineTo(s+r-e,o),a&&t.bezierCurveTo(s+r-c*e,o,s+r,o+c*i,s+r,o+i),t.lineTo(s+r,o+n-i),a&&t.bezierCurveTo(s+r,o+n-c*i,s+r-c*e,o+n,s+r-e,o+n),t.lineTo(s+e,o+n),a&&t.bezierCurveTo(s+c*e,o+n,s,o+n-c*i,s,o+n-i),t.lineTo(s,o+i),a&&t.bezierCurveTo(s,o+c*i,s+c*e,o,s+e,o),t.closePath(),this._renderPaintInOrder(t)},toObject:function(t){return this.callSuper("toObject",["rx","ry"].concat(t))},_toSVG:function(){return["<rect ","COMMON_PARTS",'x="',-this.width/2,'" y="',-this.height/2,'" rx="',this.rx,'" ry="',this.ry,'" width="',this.width,'" height="',this.height,'" />\n']}}),r.Rect.ATTRIBUTE_NAMES=r.SHARED_ATTRIBUTES.concat("x y rx ry width height".split(" ")),r.Rect.fromElement=function(t,e,i){if(!t)return e(null);i=i||{};t=r.parseAttributes(t,r.Rect.ATTRIBUTE_NAMES);t.left=t.left||0,t.top=t.top||0,t.height=t.height||0,t.width=t.width||0;t=new r.Rect(n(i?r.util.object.clone(i):{},t));t.visible=t.visible&&0<t.width&&0<t.height,e(t)},r.Rect.fromObject=function(t,e){return r.Object._fromObject("Rect",t,e)})}("undefined"!=typeof exports?exports:this),function(t){"use strict";var o=t.fabric||(t.fabric={}),s=o.util.object.extend,r=o.util.array.min,n=o.util.array.max,a=o.util.toFixed;o.Polyline?o.warn("fabric.Polyline is already defined"):(o.Polyline=o.util.createClass(o.Object,{type:"polyline",points:null,cacheProperties:o.Object.prototype.cacheProperties.concat("points"),initialize:function(t,e){e=e||{},this.points=t||[],this.callSuper("initialize",e),this._setPositionDimensions(e)},_setPositionDimensions:function(t){var e,i=this._calcDimensions(t);this.width=i.width,this.height=i.height,t.fromSVG||(e=this.translateToGivenOrigin({x:i.left-this.strokeWidth/2,y:i.top-this.strokeWidth/2},"left","top",this.originX,this.originY)),void 0===t.left&&(this.left=t.fromSVG?i.left:e.x),void 0===t.top&&(this.top=t.fromSVG?i.top:e.y),this.pathOffset={x:i.left+this.width/2,y:i.top+this.height/2}},_calcDimensions:function(){var t=this.points,e=r(t,"x")||0,i=r(t,"y")||0;return{left:e,top:i,width:(n(t,"x")||0)-e,height:(n(t,"y")||0)-i}},toObject:function(t){return s(this.callSuper("toObject",t),{points:this.points.concat()})},_toSVG:function(){for(var t=[],e=this.pathOffset.x,i=this.pathOffset.y,r=o.Object.NUM_FRACTION_DIGITS,n=0,s=this.points.length;n<s;n++)t.push(a(this.points[n].x-e,r),",",a(this.points[n].y-i,r)," ");return["<"+this.type+" ","COMMON_PARTS",'points="',t.join(""),'" />\n']},commonRender:function(t){var e,i=this.points.length,r=this.pathOffset.x,n=this.pathOffset.y;if(!i||isNaN(this.points[i-1].y))return!1;t.beginPath(),t.moveTo(this.points[0].x-r,this.points[0].y-n);for(var s=0;s<i;s++)e=this.points[s],t.lineTo(e.x-r,e.y-n);return!0},_render:function(t){this.commonRender(t)&&this._renderPaintInOrder(t)},complexity:function(){return this.get("points").length}}),o.Polyline.ATTRIBUTE_NAMES=o.SHARED_ATTRIBUTES.concat(),o.Polyline.fromElementGenerator=function(n){return function(t,e,i){if(!t)return e(null);i=i||{};var r=o.parsePointsAttribute(t.getAttribute("points")),t=o.parseAttributes(t,o[n].ATTRIBUTE_NAMES);t.fromSVG=!0,e(new o[n](r,s(t,i)))}},o.Polyline.fromElement=o.Polyline.fromElementGenerator("Polyline"),o.Polyline.fromObject=function(t,e){return o.Object._fromObject("Polyline",t,e,"points")})}("undefined"!=typeof exports?exports:this),function(t){"use strict";var i=t.fabric||(t.fabric={});i.Polygon?i.warn("fabric.Polygon is already defined"):(i.Polygon=i.util.createClass(i.Polyline,{type:"polygon",_render:function(t){this.commonRender(t)&&(t.closePath(),this._renderPaintInOrder(t))}}),i.Polygon.ATTRIBUTE_NAMES=i.SHARED_ATTRIBUTES.concat(),i.Polygon.fromElement=i.Polyline.fromElementGenerator("Polygon"),i.Polygon.fromObject=function(t,e){i.Object._fromObject("Polygon",t,e,"points")})}("undefined"!=typeof exports?exports:this),function(t){"use strict";var f=t.fabric||(t.fabric={}),d=f.util.array.min,g=f.util.array.max,r=f.util.object.extend,n=Object.prototype.toString,e=f.util.toFixed;f.Path?f.warn("fabric.Path is already defined"):(f.Path=f.util.createClass(f.Object,{type:"path",path:null,cacheProperties:f.Object.prototype.cacheProperties.concat("path","fillRule"),stateProperties:f.Object.prototype.stateProperties.concat("path"),initialize:function(t,e){this.callSuper("initialize",e=e||{});var i="[object Array]"===n.call(t=t||[]);this.path=f.util.makePathSimpler(i?t:f.util.parsePath(t)),this.path&&f.Polyline.prototype._setPositionDimensions.call(this,e)},_renderPathCommands:function(t){var e,i=0,r=0,n=0,s=0,o=0,a=0,c=-this.pathOffset.x,h=-this.pathOffset.y;t.beginPath();for(var l=0,u=this.path.length;l<u;++l)switch((e=this.path[l])[0]){case"L":n=e[1],s=e[2],t.lineTo(n+c,s+h);break;case"M":i=n=e[1],r=s=e[2],t.moveTo(n+c,s+h);break;case"C":n=e[5],s=e[6],o=e[3],a=e[4],t.bezierCurveTo(e[1]+c,e[2]+h,o+c,a+h,n+c,s+h);break;case"Q":t.quadraticCurveTo(e[1]+c,e[2]+h,e[3]+c,e[4]+h),n=e[3],s=e[4],o=e[1],a=e[2];break;case"z":case"Z":n=i,s=r,t.closePath()}},_render:function(t){this._renderPathCommands(t),this._renderPaintInOrder(t)},toString:function(){return"#<fabric.Path ("+this.complexity()+'): { "top": '+this.top+', "left": '+this.left+" }>"},toObject:function(t){return r(this.callSuper("toObject",t),{path:this.path.map(function(t){return t.slice()})})},toDatalessObject:function(t){t=this.toObject(["sourcePath"].concat(t));return t.sourcePath&&delete t.path,t},_toSVG:function(){return["<path ","COMMON_PARTS",'d="',f.util.joinPath(this.path),'" stroke-linecap="round" ',"/>\n"]},_getOffsetTransform:function(){var t=f.Object.NUM_FRACTION_DIGITS;return" translate("+e(-this.pathOffset.x,t)+", "+e(-this.pathOffset.y,t)+")"},toClipPathSVG:function(t){var e=this._getOffsetTransform();return"\t"+this._createBaseClipPathSVGMarkup(this._toSVG(),{reviver:t,additionalTransform:e})},toSVG:function(t){var e=this._getOffsetTransform();return this._createBaseSVGMarkup(this._toSVG(),{reviver:t,additionalTransform:e})},complexity:function(){return this.path.length},_calcDimensions:function(){for(var t,e,i=[],r=[],n=0,s=0,o=0,a=0,c=0,h=this.path.length;c<h;++c){switch((t=this.path[c])[0]){case"L":o=t[1],a=t[2],e=[];break;case"M":n=o=t[1],s=a=t[2],e=[];break;case"C":e=f.util.getBoundsOfCurve(o,a,t[1],t[2],t[3],t[4],t[5],t[6]),o=t[5],a=t[6];break;case"Q":e=f.util.getBoundsOfCurve(o,a,t[1],t[2],t[1],t[2],t[3],t[4]),o=t[3],a=t[4];break;case"z":case"Z":o=n,a=s}e.forEach(function(t){i.push(t.x),r.push(t.y)}),i.push(o),r.push(a)}var l=d(i)||0,u=d(r)||0;return{left:l,top:u,width:(g(i)||0)-l,height:(g(r)||0)-u}}}),f.Path.fromObject=function(e,i){var t;"string"==typeof e.sourcePath?(t=e.sourcePath,f.loadSVGFromURL(t,function(t){t=t[0];t.setOptions(e),i&&i(t)})):f.Object._fromObject("Path",e,i,"path")},f.Path.ATTRIBUTE_NAMES=f.SHARED_ATTRIBUTES.concat(["d"]),f.Path.fromElement=function(t,e,i){t=f.parseAttributes(t,f.Path.ATTRIBUTE_NAMES);t.fromSVG=!0,e(new f.Path(t.d,r(t,i)))})}("undefined"!=typeof exports?exports:this),function(t){"use strict";var o=t.fabric||(t.fabric={}),a=o.util.array.min,c=o.util.array.max;o.Group||(o.Group=o.util.createClass(o.Object,o.Collection,{type:"group",strokeWidth:0,subTargetCheck:!1,cacheProperties:[],useSetOnGroup:!1,initialize:function(t,e,i){e=e||{},this._objects=[],i&&this.callSuper("initialize",e),this._objects=t||[];for(var r=this._objects.length;r--;)this._objects[r].group=this;i?this._updateObjectsACoords():(i=e&&e.centerPoint,void 0!==e.originX&&(this.originX=e.originX),void 0!==e.originY&&(this.originY=e.originY),i||this._calcBounds(),this._updateObjectsCoords(i),delete e.centerPoint,this.callSuper("initialize",e)),this.setCoords()},_updateObjectsACoords:function(){for(var t=this._objects.length;t--;)this._objects[t].setCoords(!0)},_updateObjectsCoords:function(t){for(var t=t||this.getCenterPoint(),e=this._objects.length;e--;)this._updateObjectCoords(this._objects[e],t)},_updateObjectCoords:function(t,e){var i=t.left,r=t.top;t.set({left:i-e.x,top:r-e.y}),t.group=this,t.setCoords(!0)},toString:function(){return"#<fabric.Group: ("+this.complexity()+")>"},addWithUpdate:function(t){var e=!!this.group;return this._restoreObjectsState(),o.util.resetObjectTransform(this),t&&(e&&o.util.removeTransformFromObject(t,this.group.calcTransformMatrix()),this._objects.push(t),t.group=this,t._set("canvas",this.canvas)),this._calcBounds(),this._updateObjectsCoords(),this.dirty=!0,e?this.group.addWithUpdate():this.setCoords(),this},removeWithUpdate:function(t){return this._restoreObjectsState(),o.util.resetObjectTransform(this),this.remove(t),this._calcBounds(),this._updateObjectsCoords(),this.setCoords(),this.dirty=!0,this},_onObjectAdded:function(t){this.dirty=!0,t.group=this,t._set("canvas",this.canvas)},_onObjectRemoved:function(t){this.dirty=!0,delete t.group},_set:function(t,e){var i=this._objects.length;if(this.useSetOnGroup)for(;i--;)this._objects[i].setOnGroup(t,e);if("canvas"===t)for(;i--;)this._objects[i]._set(t,e);o.Object.prototype._set.call(this,t,e)},toObject:function(r){var n=this.includeDefaultValues,t=this._objects.filter(function(t){return!t.excludeFromExport}).map(function(t){var e=t.includeDefaultValues;t.includeDefaultValues=n;var i=t.toObject(r);return t.includeDefaultValues=e,i}),e=o.Object.prototype.toObject.call(this,r);return e.objects=t,e},toDatalessObject:function(r){var n,t,e=this.sourcePath;t=e||(n=this.includeDefaultValues,this._objects.map(function(t){var e=t.includeDefaultValues;t.includeDefaultValues=n;var i=t.toDatalessObject(r);return t.includeDefaultValues=e,i}));e=o.Object.prototype.toDatalessObject.call(this,r);return e.objects=t,e},render:function(t){this._transformDone=!0,this.callSuper("render",t),this._transformDone=!1},shouldCache:function(){var t=o.Object.prototype.shouldCache.call(this);if(t)for(var e=0,i=this._objects.length;e<i;e++)if(this._objects[e].willDrawShadow())return this.ownCaching=!1;return t},willDrawShadow:function(){if(o.Object.prototype.willDrawShadow.call(this))return!0;for(var t=0,e=this._objects.length;t<e;t++)if(this._objects[t].willDrawShadow())return!0;return!1},isOnACache:function(){return this.ownCaching||this.group&&this.group.isOnACache()},drawObject:function(t){for(var e=0,i=this._objects.length;e<i;e++)this._objects[e].render(t);this._drawClipPath(t)},isCacheDirty:function(t){if(this.callSuper("isCacheDirty",t))return!0;if(!this.statefullCache)return!1;for(var e,i,r=0,n=this._objects.length;r<n;r++)if(this._objects[r].isCacheDirty(!0))return this._cacheCanvas&&(e=this.cacheWidth/this.zoomX,i=this.cacheHeight/this.zoomY,this._cacheContext.clearRect(-e/2,-i/2,e,i)),!0;return!1},_restoreObjectsState:function(){var e=this.calcOwnMatrix();return this._objects.forEach(function(t){o.util.addTransformToObject(t,e),delete t.group,t.setCoords()}),this},realizeTransform:function(t,e){return o.util.addTransformToObject(t,e),t},destroy:function(){return this._objects.forEach(function(t){t.set("dirty",!0)}),this._restoreObjectsState()},toActiveSelection:function(){if(this.canvas){var t=this._objects,e=this.canvas;this._objects=[];var i=this.toObject();delete i.objects;var r=new o.ActiveSelection([]);return r.set(i),r.type="activeSelection",e.remove(this),t.forEach(function(t){t.group=r,t.dirty=!0,e.add(t)}),r.canvas=e,r._objects=t,(e._activeObject=r).setCoords(),r}},ungroupOnCanvas:function(){return this._restoreObjectsState()},setObjectsCoords:function(){return this.forEachObject(function(t){t.setCoords(!0)}),this},_calcBounds:function(t){for(var e,i,r,n,s=[],o=[],a=["tr","br","bl","tl"],c=0,h=this._objects.length,l=a.length;c<h;++c){for(r=(e=this._objects[c]).calcACoords(),n=0;n<l;n++)s.push(r[i=a[n]].x),o.push(r[i].y);e.aCoords=r}this._getBounds(s,o,t)},_getBounds:function(t,e,i){var r=new o.Point(a(t),a(e)),n=new o.Point(c(t),c(e)),s=r.y||0,t=r.x||0,e=n.x-r.x||0,r=n.y-r.y||0;this.width=e,this.height=r,i||this.setPositionByOrigin({x:t,y:s},"left","top")},_toSVG:function(t){for(var e=["<g ","COMMON_PARTS"," >\n"],i=0,r=this._objects.length;i<r;i++)e.push("\t\t",this._objects[i].toSVG(t));return e.push("</g>\n"),e},getSvgStyles:function(){var t=void 0!==this.opacity&&1!==this.opacity?"opacity: "+this.opacity+";":"",e=this.visible?"":" visibility: hidden;";return[t,this.getSvgFilter(),e].join("")},toClipPathSVG:function(t){for(var e=[],i=0,r=this._objects.length;i<r;i++)e.push("\t",this._objects[i].toClipPathSVG(t));return this._createBaseClipPathSVGMarkup(e,{reviver:t})}}),o.Group.fromObject=function(r,n){var e=r.objects,i=o.util.object.clone(r,!0);delete i.objects,"string"!=typeof e?o.util.enlivenObjects(e,function(i){o.util.enlivenObjects([r.clipPath],function(t){var e=o.util.object.clone(r,!0);e.clipPath=t[0],delete e.objects,n&&n(new o.Group(i,e,!0))})}):o.loadSVGFromURL(e,function(t){t=o.util.groupSVGElements(t,r,e);t.set(i),n&&n(t)})})}("undefined"!=typeof exports?exports:this),function(t){"use strict";var r=t.fabric||(t.fabric={});r.ActiveSelection||(r.ActiveSelection=r.util.createClass(r.Group,{type:"activeSelection",initialize:function(t,e){e=e||{},this._objects=t||[];for(var i=this._objects.length;i--;)this._objects[i].group=this;e.originX&&(this.originX=e.originX),e.originY&&(this.originY=e.originY),this._calcBounds(),this._updateObjectsCoords(),r.Object.prototype.initialize.call(this,e),this.setCoords()},toGroup:function(){var t=this._objects.concat();this._objects=[];var e=r.Object.prototype.toObject.call(this),i=new r.Group([]);if(delete e.type,i.set(e),t.forEach(function(t){t.canvas.remove(t),t.group=i}),i._objects=t,!this.canvas)return i;t=this.canvas;return t.add(i),(t._activeObject=i).setCoords(),i},onDeselect:function(){return this.destroy(),!1},toString:function(){return"#<fabric.ActiveSelection: ("+this.complexity()+")>"},shouldCache:function(){return!1},isOnACache:function(){return!1},_renderControls:function(t,e,i){t.save(),t.globalAlpha=this.isMoving?this.borderOpacityWhenMoving:1,this.callSuper("_renderControls",t,e),void 0===(i=i||{}).hasControls&&(i.hasControls=!1),i.forActiveSelection=!0;for(var r=0,n=this._objects.length;r<n;r++)this._objects[r]._renderControls(t,i);t.restore()}}),r.ActiveSelection.fromObject=function(e,i){r.util.enlivenObjects(e.objects,function(t){delete e.objects,i&&i(new r.ActiveSelection(t,e,!0))})})}("undefined"!=typeof exports?exports:this),function(t){"use strict";var r=fabric.util.object.extend;t.fabric||(t.fabric={}),t.fabric.Image?fabric.warn("fabric.Image is already defined."):(fabric.Image=fabric.util.createClass(fabric.Object,{type:"image",strokeWidth:0,srcFromAttribute:!1,_lastScaleX:1,_lastScaleY:1,_filterScalingX:1,_filterScalingY:1,minimumScaleTrigger:.5,stateProperties:fabric.Object.prototype.stateProperties.concat("cropX","cropY"),cacheProperties:fabric.Object.prototype.cacheProperties.concat("cropX","cropY"),cacheKey:"",cropX:0,cropY:0,imageSmoothing:!0,initialize:function(t,e){e=e||{},this.filters=[],this.cacheKey="texture"+fabric.Object.__uid++,this.callSuper("initialize",e),this._initElement(t,e)},getElement:function(){return this._element||{}},setElement:function(t,e){return this.removeTexture(this.cacheKey),this.removeTexture(this.cacheKey+"_filtered"),this._element=t,this._originalElement=t,this._initConfig(e),0!==this.filters.length&&this.applyFilters(),this.resizeFilter&&this.applyResizeFilters(),this},removeTexture:function(t){var e=fabric.filterBackend;e&&e.evictCachesForKey&&e.evictCachesForKey(t)},dispose:function(){this.removeTexture(this.cacheKey),this.removeTexture(this.cacheKey+"_filtered"),this._cacheContext=void 0,["_originalElement","_element","_filteredEl","_cacheCanvas"].forEach(function(t){fabric.util.cleanUpJsdomNode(this[t]),this[t]=void 0}.bind(this))},getCrossOrigin:function(){return this._originalElement&&(this._originalElement.crossOrigin||null)},getOriginalSize:function(){var t=this.getElement();return{width:t.naturalWidth||t.width,height:t.naturalHeight||t.height}},_stroke:function(t){var e,i;this.stroke&&0!==this.strokeWidth&&(e=this.width/2,i=this.height/2,t.beginPath(),t.moveTo(-e,-i),t.lineTo(e,-i),t.lineTo(e,i),t.lineTo(-e,i),t.lineTo(-e,-i),t.closePath())},toObject:function(t){var e=[];this.filters.forEach(function(t){t&&e.push(t.toObject())});t=r(this.callSuper("toObject",["cropX","cropY"].concat(t)),{src:this.getSrc(),crossOrigin:this.getCrossOrigin(),filters:e});return this.resizeFilter&&(t.resizeFilter=this.resizeFilter.toObject()),t},hasCrop:function(){return this.cropX||this.cropY||this.width<this._element.width||this.height<this._element.height},_toSVG:function(){var t,e,i=[],r=[],n=this._element,s=-this.width/2,o=-this.height/2,a="",c="";return n?(this.hasCrop()&&(e=fabric.Object.__uid++,i.push('<clipPath id="imageCrop_'+e+'">\n','\t<rect x="'+s+'" y="'+o+'" width="'+this.width+'" height="'+this.height+'" />\n',"</clipPath>\n"),a=' clip-path="url(#imageCrop_'+e+')" '),this.imageSmoothing||(c='" image-rendering="optimizeSpeed'),r.push("\t<image ","COMMON_PARTS",'xlink:href="',this.getSvgSrc(!0),'" x="',s-this.cropX,'" y="',o-this.cropY,'" width="',n.width||n.naturalWidth,'" height="',n.height||n.height,c,'"',a,"></image>\n"),(this.stroke||this.strokeDashArray)&&(a=this.fill,this.fill=null,t=["\t<rect ",'x="',s,'" y="',o,'" width="',this.width,'" height="',this.height,'" style="',this.getSvgStyles(),'"/>\n'],this.fill=a),i="fill"!==this.paintFirst?i.concat(t,r):i.concat(r,t)):[]},getSrc:function(t){t=t?this._element:this._originalElement;return t?t.toDataURL?t.toDataURL():this.srcFromAttribute?t.getAttribute("src"):t.src:this.src||""},setSrc:function(t,i,r){return fabric.util.loadImage(t,function(t,e){this.setElement(t,r),this._setWidthHeight(),i&&i(this,e)},this,r&&r.crossOrigin),this},toString:function(){return'#<fabric.Image: { src: "'+this.getSrc()+'" }>'},applyResizeFilters:function(){var t=this.resizeFilter,e=this.minimumScaleTrigger,i=this.getTotalObjectScaling(),r=i.scaleX,n=i.scaleY,s=this._filteredEl||this._originalElement;if(this.group&&this.set("dirty",!0),!t||e<r&&e<n)return this._element=s,this._filterScalingX=1,this._filterScalingY=1,this._lastScaleX=r,void(this._lastScaleY=n);fabric.filterBackend||(fabric.filterBackend=fabric.initFilterBackend());var o=fabric.util.createCanvasElement(),a=this._filteredEl?this.cacheKey+"_filtered":this.cacheKey,i=s.width,e=s.height;o.width=i,o.height=e,this._element=o,this._lastScaleX=t.scaleX=r,this._lastScaleY=t.scaleY=n,fabric.filterBackend.applyFilters([t],s,i,e,this._element,a),this._filterScalingX=o.width/this._originalElement.width,this._filterScalingY=o.height/this._originalElement.height},applyFilters:function(t){if(t=(t=t||this.filters||[]).filter(function(t){return t&&!t.isNeutralState()}),this.set("dirty",!0),this.removeTexture(this.cacheKey+"_filtered"),0===t.length)return this._element=this._originalElement,this._filteredEl=null,this._filterScalingX=1,this._filterScalingY=1,this;var e=this._originalElement,i=e.naturalWidth||e.width,r=e.naturalHeight||e.height;return this._element===this._originalElement?((e=fabric.util.createCanvasElement()).width=i,e.height=r,this._element=e,this._filteredEl=e):(this._element=this._filteredEl,this._filteredEl.getContext("2d").clearRect(0,0,i,r),this._lastScaleX=1,this._lastScaleY=1),fabric.filterBackend||(fabric.filterBackend=fabric.initFilterBackend()),fabric.filterBackend.applyFilters(t,this._originalElement,i,r,this._element,this.cacheKey),this._originalElement.width===this._element.width&&this._originalElement.height===this._element.height||(this._filterScalingX=this._element.width/this._originalElement.width,this._filterScalingY=this._element.height/this._originalElement.height),this},_render:function(t){fabric.util.setImageSmoothing(t,this.imageSmoothing),!0!==this.isMoving&&this.resizeFilter&&this._needsResize()&&this.applyResizeFilters(),this._stroke(t),this._renderPaintInOrder(t)},drawCacheOnCanvas:function(t){fabric.util.setImageSmoothing(t,this.imageSmoothing),fabric.Object.prototype.drawCacheOnCanvas.call(this,t)},shouldCache:function(){return this.needsItsOwnCache()},_renderFill:function(t){var e,i,r,n,s,o,a,c,h,l,u,f,d,g,p,m=this._element;m&&(e=this._filterScalingX,i=this._filterScalingY,r=this.width,n=this.height,s=Math.min,g=(d=Math.max)(this.cropX,0),p=d(this.cropY,0),o=m.naturalWidth||m.width,a=m.naturalHeight||m.height,h=p*i,l=s(r*e,o-(c=g*e)),u=s(n*i,a-h),f=-r/2,d=-n/2,g=s(r,o/e-g),p=s(n,a/i-p),m&&t.drawImage(m,c,h,l,u,f,d,g,p))},_needsResize:function(){var t=this.getTotalObjectScaling();return t.scaleX!==this._lastScaleX||t.scaleY!==this._lastScaleY},_resetWidthHeight:function(){this.set(this.getOriginalSize())},_initElement:function(t,e){this.setElement(fabric.util.getById(t),e),fabric.util.addClass(this.getElement(),fabric.Image.CSS_CANVAS)},_initConfig:function(t){this.setOptions(t=t||{}),this._setWidthHeight(t)},_initFilters:function(t,e){t&&t.length?fabric.util.enlivenObjects(t,function(t){e&&e(t)},"fabric.Image.filters"):e&&e()},_setWidthHeight:function(t){t=t||{};var e=this.getElement();this.width=t.width||e.naturalWidth||e.width||0,this.height=t.height||e.naturalHeight||e.height||0},parsePreserveAspectRatioAttribute:function(){var t,e=fabric.util.parsePreserveAspectRatioAttribute(this.preserveAspectRatio||""),i=this._element.width,r=this._element.height,n=1,s=1,o=0,a=0,c=0,h=0,l=this.width,u=this.height,f={width:l,height:u};return!e||"none"===e.alignX&&"none"===e.alignY?(n=l/i,s=u/r):("meet"===e.meetOrSlice&&(t=(l-i*(n=s=fabric.util.findScaleToFit(this._element,f)))/2,"Min"===e.alignX&&(o=-t),"Max"===e.alignX&&(o=t),t=(u-r*s)/2,"Min"===e.alignY&&(a=-t),"Max"===e.alignY&&(a=t)),"slice"===e.meetOrSlice&&(t=i-l/(n=s=fabric.util.findScaleToCover(this._element,f)),"Mid"===e.alignX&&(c=t/2),"Max"===e.alignX&&(c=t),t=r-u/s,"Mid"===e.alignY&&(h=t/2),"Max"===e.alignY&&(h=t),i=l/n,r=u/s)),{width:i,height:r,scaleX:n,scaleY:s,offsetLeft:o,offsetTop:a,cropX:c,cropY:h}}}),fabric.Image.CSS_CANVAS="canvas-img",fabric.Image.prototype.getSvgSrc=fabric.Image.prototype.getSrc,fabric.Image.fromObject=function(t,i){var r=fabric.util.object.clone(t);fabric.util.loadImage(r.src,function(e,t){t?i&&i(null,!0):fabric.Image.prototype._initFilters.call(r,r.filters,function(t){r.filters=t||[],fabric.Image.prototype._initFilters.call(r,[r.resizeFilter],function(t){r.resizeFilter=t[0],fabric.util.enlivenObjects([r.clipPath],function(t){r.clipPath=t[0];t=new fabric.Image(e,r);i(t,!1)})})})},null,r.crossOrigin)},fabric.Image.fromURL=function(t,i,r){fabric.util.loadImage(t,function(t,e){i&&i(new fabric.Image(t,r),e)},null,r&&r.crossOrigin)},fabric.Image.ATTRIBUTE_NAMES=fabric.SHARED_ATTRIBUTES.concat("x y width height preserveAspectRatio xlink:href crossOrigin image-rendering".split(" ")),fabric.Image.fromElement=function(t,e,i){t=fabric.parseAttributes(t,fabric.Image.ATTRIBUTE_NAMES);fabric.Image.fromURL(t["xlink:href"],e,r(i?fabric.util.object.clone(i):{},t))})}("undefined"!=typeof exports?exports:this),fabric.util.object.extend(fabric.Object.prototype,{_getAngleValueForStraighten:function(){var t=this.angle%360;return 0<t?90*Math.round((t-1)/90):90*Math.round(t/90)},straighten:function(){return this.rotate(this._getAngleValueForStraighten()),this},fxStraighten:function(t){function e(){}var i=(t=t||{}).onComplete||e,r=t.onChange||e,n=this;return fabric.util.animate({startValue:this.get("angle"),endValue:this._getAngleValueForStraighten(),duration:this.FX_DURATION,onChange:function(t){n.rotate(t),r()},onComplete:function(){n.setCoords(),i()}}),this}}),fabric.util.object.extend(fabric.StaticCanvas.prototype,{straightenObject:function(t){return t.straighten(),this.requestRenderAll(),this},fxStraightenObject:function(t){return t.fxStraighten({onChange:this.requestRenderAllBound}),this}}),function(){"use strict";function t(t){t&&t.tileSize&&(this.tileSize=t.tileSize),this.setupGLContext(this.tileSize,this.tileSize),this.captureGPUInfo()}fabric.isWebglSupported=function(t){if(fabric.isLikelyNode)return!1;t=t||fabric.WebglFilterBackend.prototype.tileSize;var e,i,r,n=document.createElement("canvas"),s=n.getContext("webgl")||n.getContext("experimental-webgl"),n=!1;if(s){fabric.maxTextureSize=s.getParameter(s.MAX_TEXTURE_SIZE);for(var n=fabric.maxTextureSize>=t,o=["highp","mediump","lowp"],a=0;a<3;a++)if(r=void 0,r="precision "+(i=o[a])+" float;\nvoid main(){}",i=(e=s).createShader(e.FRAGMENT_SHADER),e.shaderSource(i,r),e.compileShader(i),!!e.getShaderParameter(i,e.COMPILE_STATUS)){fabric.webGlPrecision=o[a];break}}return this.isSupported=n},(fabric.WebglFilterBackend=t).prototype={tileSize:2048,resources:{},setupGLContext:function(t,e){this.dispose(),this.createWebGLCanvas(t,e),this.aPosition=new Float32Array([0,0,0,1,1,0,1,1]),this.chooseFastestCopyGLTo2DMethod(t,e)},chooseFastestCopyGLTo2DMethod:function(t,e){var i=void 0!==window.performance;try{new ImageData(1,1),s=!0}catch(t){s=!1}var r="undefined"!=typeof ArrayBuffer,n="undefined"!=typeof Uint8ClampedArray;if(i&&s&&r&&n){var s=fabric.util.createCanvasElement(),r=new ArrayBuffer(t*e*4);if(fabric.forceGLPutImageData)return this.imageBuffer=r,void(this.copyGLTo2D=copyGLTo2DPutImageData);n={imageBuffer:r,destinationWidth:t,destinationHeight:e,targetCanvas:s};s.width=t,s.height=e,s=window.performance.now(),copyGLTo2DDrawImage.call(n,this.gl,n),e=window.performance.now()-s,s=window.performance.now(),copyGLTo2DPutImageData.call(n,this.gl,n),window.performance.now()-s<e?(this.imageBuffer=r,this.copyGLTo2D=copyGLTo2DPutImageData):this.copyGLTo2D=copyGLTo2DDrawImage}},createWebGLCanvas:function(t,e){var i=fabric.util.createCanvasElement();i.width=t,i.height=e;t={alpha:!0,premultipliedAlpha:!1,depth:!1,stencil:!1,antialias:!1},e=i.getContext("webgl",t);(e=e||i.getContext("experimental-webgl",t))&&(e.clearColor(0,0,0,0),this.canvas=i,this.gl=e)},applyFilters:function(t,e,i,r,n,s){var o,a=this.gl;s&&(o=this.getCachedTexture(s,e));var c={originalWidth:e.width||e.originalWidth,originalHeight:e.height||e.originalHeight,sourceWidth:i,sourceHeight:r,destinationWidth:i,destinationHeight:r,context:a,sourceTexture:this.createTexture(a,i,r,!o&&e),targetTexture:this.createTexture(a,i,r),originalTexture:o||this.createTexture(a,i,r,!o&&e),passes:t.length,webgl:!0,aPosition:this.aPosition,programCache:this.programCache,pass:0,filterBackend:this,targetCanvas:n},e=a.createFramebuffer();return a.bindFramebuffer(a.FRAMEBUFFER,e),t.forEach(function(t){t&&t.applyTo(c)}),resizeCanvasIfNeeded(c),this.copyGLTo2D(a,c),a.bindTexture(a.TEXTURE_2D,null),a.deleteTexture(c.sourceTexture),a.deleteTexture(c.targetTexture),a.deleteFramebuffer(e),n.getContext("2d").setTransform(1,0,0,1,0,0),c},dispose:function(){this.canvas&&(this.canvas=null,this.gl=null),this.clearWebGLCaches()},clearWebGLCaches:function(){this.programCache={},this.textureCache={}},createTexture:function(t,e,i,r){var n=t.createTexture();return t.bindTexture(t.TEXTURE_2D,n),t.texParameteri(t.TEXTURE_2D,t.TEXTURE_MAG_FILTER,t.NEAREST),t.texParameteri(t.TEXTURE_2D,t.TEXTURE_MIN_FILTER,t.NEAREST),t.texParameteri(t.TEXTURE_2D,t.TEXTURE_WRAP_S,t.CLAMP_TO_EDGE),t.texParameteri(t.TEXTURE_2D,t.TEXTURE_WRAP_T,t.CLAMP_TO_EDGE),r?t.texImage2D(t.TEXTURE_2D,0,t.RGBA,t.RGBA,t.UNSIGNED_BYTE,r):t.texImage2D(t.TEXTURE_2D,0,t.RGBA,e,i,0,t.RGBA,t.UNSIGNED_BYTE,null),n},getCachedTexture:function(t,e){if(this.textureCache[t])return this.textureCache[t];e=this.createTexture(this.gl,e.width,e.height,e);return this.textureCache[t]=e},evictCachesForKey:function(t){this.textureCache[t]&&(this.gl.deleteTexture(this.textureCache[t]),delete this.textureCache[t])},copyGLTo2D:copyGLTo2DDrawImage,captureGPUInfo:function(){if(this.gpuInfo)return this.gpuInfo;var t=this.gl,e={renderer:"",vendor:""};if(!t)return e;var i,r=t.getExtension("WEBGL_debug_renderer_info");return r&&(i=t.getParameter(r.UNMASKED_RENDERER_WEBGL),r=t.getParameter(r.UNMASKED_VENDOR_WEBGL),i&&(e.renderer=i.toLowerCase()),r&&(e.vendor=r.toLowerCase())),this.gpuInfo=e}}}(),function(){"use strict";function t(){}function e(){}(fabric.Canvas2dFilterBackend=e).prototype={evictCachesForKey:t,dispose:t,clearWebGLCaches:t,resources:{},applyFilters:function(t,e,i,r,n){var s=n.getContext("2d");s.drawImage(e,0,0,i,r);var o={sourceWidth:i,sourceHeight:r,imageData:s.getImageData(0,0,i,r),originalEl:e,originalImageData:s.getImageData(0,0,i,r),canvasEl:n,ctx:s,filterBackend:this};return t.forEach(function(t){t.applyTo(o)}),o.imageData.width===i&&o.imageData.height===r||(n.width=o.imageData.width,n.height=o.imageData.height),s.putImageData(o.imageData,0,0),o}}}(),fabric.Image=fabric.Image||{},fabric.Image.filters=fabric.Image.filters||{},fabric.Image.filters.BaseFilter=fabric.util.createClass({type:"BaseFilter",vertexSource:"attribute vec2 aPosition;\nvarying vec2 vTexCoord;\nvoid main() {\nvTexCoord = aPosition;\ngl_Position = vec4(aPosition * 2.0 - 1.0, 0.0, 1.0);\n}",fragmentSource:"precision highp float;\nvarying vec2 vTexCoord;\nuniform sampler2D uTexture;\nvoid main() {\ngl_FragColor = texture2D(uTexture, vTexCoord);\n}",initialize:function(t){t&&this.setOptions(t)},setOptions:function(t){for(var e in t)this[e]=t[e]},createProgram:function(t,e,i){e=e||this.fragmentSource,i=i||this.vertexSource,"highp"!==fabric.webGlPrecision&&(e=e.replace(/precision highp float/g,"precision "+fabric.webGlPrecision+" float"));var r=t.createShader(t.VERTEX_SHADER);if(t.shaderSource(r,i),t.compileShader(r),!t.getShaderParameter(r,t.COMPILE_STATUS))throw new Error("Vertex shader compile error for "+this.type+": "+t.getShaderInfoLog(r));i=t.createShader(t.FRAGMENT_SHADER);if(t.shaderSource(i,e),t.compileShader(i),!t.getShaderParameter(i,t.COMPILE_STATUS))throw new Error("Fragment shader compile error for "+this.type+": "+t.getShaderInfoLog(i));e=t.createProgram();if(t.attachShader(e,r),t.attachShader(e,i),t.linkProgram(e),!t.getProgramParameter(e,t.LINK_STATUS))throw new Error('Shader link error for "${this.type}" '+t.getProgramInfoLog(e));r=this.getAttributeLocations(t,e),i=this.getUniformLocations(t,e)||{};return i.uStepW=t.getUniformLocation(e,"uStepW"),i.uStepH=t.getUniformLocation(e,"uStepH"),{program:e,attributeLocations:r,uniformLocations:i}},getAttributeLocations:function(t,e){return{aPosition:t.getAttribLocation(e,"aPosition")}},getUniformLocations:function(){return{}},sendAttributeData:function(t,e,i){var r=e.aPosition,e=t.createBuffer();t.bindBuffer(t.ARRAY_BUFFER,e),t.enableVertexAttribArray(r),t.vertexAttribPointer(r,2,t.FLOAT,!1,0,0),t.bufferData(t.ARRAY_BUFFER,i,t.STATIC_DRAW)},_setupFrameBuffer:function(t){var e,i,r=t.context;1<t.passes?(e=t.destinationWidth,i=t.destinationHeight,t.sourceWidth===e&&t.sourceHeight===i||(r.deleteTexture(t.targetTexture),t.targetTexture=t.filterBackend.createTexture(r,e,i)),r.framebufferTexture2D(r.FRAMEBUFFER,r.COLOR_ATTACHMENT0,r.TEXTURE_2D,t.targetTexture,0)):(r.bindFramebuffer(r.FRAMEBUFFER,null),r.finish())},_swapTextures:function(t){t.passes--,t.pass++;var e=t.targetTexture;t.targetTexture=t.sourceTexture,t.sourceTexture=e},isNeutralState:function(){var t=this.mainParameter,e=fabric.Image.filters[this.type].prototype;if(t){if(Array.isArray(e[t])){for(var i=e[t].length;i--;)if(this[t][i]!==e[t][i])return!1;return!0}return e[t]===this[t]}return!1},applyTo:function(t){t.webgl?(this._setupFrameBuffer(t),this.applyToWebGL(t),this._swapTextures(t)):this.applyTo2d(t)},retrieveShader:function(t){return t.programCache.hasOwnProperty(this.type)||(t.programCache[this.type]=this.createProgram(t.context)),t.programCache[this.type]},applyToWebGL:function(t){var e=t.context,i=this.retrieveShader(t);0===t.pass&&t.originalTexture?e.bindTexture(e.TEXTURE_2D,t.originalTexture):e.bindTexture(e.TEXTURE_2D,t.sourceTexture),e.useProgram(i.program),this.sendAttributeData(e,i.attributeLocations,t.aPosition),e.uniform1f(i.uniformLocations.uStepW,1/t.sourceWidth),e.uniform1f(i.uniformLocations.uStepH,1/t.sourceHeight),this.sendUniformData(e,i.uniformLocations),e.viewport(0,0,t.destinationWidth,t.destinationHeight),e.drawArrays(e.TRIANGLE_STRIP,0,4)},bindAdditionalTexture:function(t,e,i){t.activeTexture(i),t.bindTexture(t.TEXTURE_2D,e),t.activeTexture(t.TEXTURE0)},unbindAdditionalTexture:function(t,e){t.activeTexture(e),t.bindTexture(t.TEXTURE_2D,null),t.activeTexture(t.TEXTURE0)},getMainParameter:function(){return this[this.mainParameter]},setMainParameter:function(t){this[this.mainParameter]=t},sendUniformData:function(){},createHelpLayer:function(t){var e;t.helpLayer||((e=document.createElement("canvas")).width=t.sourceWidth,e.height=t.sourceHeight,t.helpLayer=e)},toObject:function(){var t={type:this.type},e=this.mainParameter;return e&&(t[e]=this[e]),t},toJSON:function(){return this.toObject()}}),fabric.Image.filters.BaseFilter.fromObject=function(t,e){t=new fabric.Image.filters[t.type](t);return e&&e(t),t},function(t){"use strict";var e=t.fabric||(t.fabric={}),i=e.Image.filters,t=e.util.createClass;i.ColorMatrix=t(i.BaseFilter,{type:"ColorMatrix",fragmentSource:"precision highp float;\nuniform sampler2D uTexture;\nvarying vec2 vTexCoord;\nuniform mat4 uColorMatrix;\nuniform vec4 uConstants;\nvoid main() {\nvec4 color = texture2D(uTexture, vTexCoord);\ncolor *= uColorMatrix;\ncolor += uConstants;\ngl_FragColor = color;\n}",matrix:[1,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,1,0],mainParameter:"matrix",colorsOnly:!0,initialize:function(t){this.callSuper("initialize",t),this.matrix=this.matrix.slice(0)},applyTo2d:function(t){for(var e,i,r,n,s=t.imageData.data,o=s.length,a=this.matrix,c=this.colorsOnly,h=0;h<o;h+=4)e=s[h],i=s[h+1],r=s[h+2],c?(s[h]=e*a[0]+i*a[1]+r*a[2]+255*a[4],s[h+1]=e*a[5]+i*a[6]+r*a[7]+255*a[9],s[h+2]=e*a[10]+i*a[11]+r*a[12]+255*a[14]):(n=s[h+3],s[h]=e*a[0]+i*a[1]+r*a[2]+n*a[3]+255*a[4],s[h+1]=e*a[5]+i*a[6]+r*a[7]+n*a[8]+255*a[9],s[h+2]=e*a[10]+i*a[11]+r*a[12]+n*a[13]+255*a[14],s[h+3]=e*a[15]+i*a[16]+r*a[17]+n*a[18]+255*a[19])},getUniformLocations:function(t,e){return{uColorMatrix:t.getUniformLocation(e,"uColorMatrix"),uConstants:t.getUniformLocation(e,"uConstants")}},sendUniformData:function(t,e){var i=this.matrix,r=[i[0],i[1],i[2],i[3],i[5],i[6],i[7],i[8],i[10],i[11],i[12],i[13],i[15],i[16],i[17],i[18]],i=[i[4],i[9],i[14],i[19]];t.uniformMatrix4fv(e.uColorMatrix,!1,r),t.uniform4fv(e.uConstants,i)}}),e.Image.filters.ColorMatrix.fromObject=e.Image.filters.BaseFilter.fromObject}("undefined"!=typeof exports?exports:this),function(t){"use strict";var e=t.fabric||(t.fabric={}),i=e.Image.filters,t=e.util.createClass;i.Brightness=t(i.BaseFilter,{type:"Brightness",fragmentSource:"precision highp float;\nuniform sampler2D uTexture;\nuniform float uBrightness;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 color = texture2D(uTexture, vTexCoord);\ncolor.rgb += uBrightness;\ngl_FragColor = color;\n}",brightness:0,mainParameter:"brightness",applyTo2d:function(t){if(0!==this.brightness)for(var e=t.imageData.data,i=e.length,r=Math.round(255*this.brightness),n=0;n<i;n+=4)e[n]=e[n]+r,e[n+1]=e[n+1]+r,e[n+2]=e[n+2]+r},getUniformLocations:function(t,e){return{uBrightness:t.getUniformLocation(e,"uBrightness")}},sendUniformData:function(t,e){t.uniform1f(e.uBrightness,this.brightness)}}),e.Image.filters.Brightness.fromObject=e.Image.filters.BaseFilter.fromObject}("undefined"!=typeof exports?exports:this),function(t){"use strict";var e=t.fabric||(t.fabric={}),i=e.util.object.extend,r=e.Image.filters,t=e.util.createClass;r.Convolute=t(r.BaseFilter,{type:"Convolute",opaque:!1,matrix:[0,0,0,0,1,0,0,0,0],fragmentSource:{Convolute_3_1:"precision highp float;\nuniform sampler2D uTexture;\nuniform float uMatrix[9];\nuniform float uStepW;\nuniform float uStepH;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 color = vec4(0, 0, 0, 0);\nfor (float h = 0.0; h < 3.0; h+=1.0) {\nfor (float w = 0.0; w < 3.0; w+=1.0) {\nvec2 matrixPos = vec2(uStepW * (w - 1), uStepH * (h - 1));\ncolor += texture2D(uTexture, vTexCoord + matrixPos) * uMatrix[int(h * 3.0 + w)];\n}\n}\ngl_FragColor = color;\n}",Convolute_3_0:"precision highp float;\nuniform sampler2D uTexture;\nuniform float uMatrix[9];\nuniform float uStepW;\nuniform float uStepH;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 color = vec4(0, 0, 0, 1);\nfor (float h = 0.0; h < 3.0; h+=1.0) {\nfor (float w = 0.0; w < 3.0; w+=1.0) {\nvec2 matrixPos = vec2(uStepW * (w - 1.0), uStepH * (h - 1.0));\ncolor.rgb += texture2D(uTexture, vTexCoord + matrixPos).rgb * uMatrix[int(h * 3.0 + w)];\n}\n}\nfloat alpha = texture2D(uTexture, vTexCoord).a;\ngl_FragColor = color;\ngl_FragColor.a = alpha;\n}",Convolute_5_1:"precision highp float;\nuniform sampler2D uTexture;\nuniform float uMatrix[25];\nuniform float uStepW;\nuniform float uStepH;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 color = vec4(0, 0, 0, 0);\nfor (float h = 0.0; h < 5.0; h+=1.0) {\nfor (float w = 0.0; w < 5.0; w+=1.0) {\nvec2 matrixPos = vec2(uStepW * (w - 2.0), uStepH * (h - 2.0));\ncolor += texture2D(uTexture, vTexCoord + matrixPos) * uMatrix[int(h * 5.0 + w)];\n}\n}\ngl_FragColor = color;\n}",Convolute_5_0:"precision highp float;\nuniform sampler2D uTexture;\nuniform float uMatrix[25];\nuniform float uStepW;\nuniform float uStepH;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 color = vec4(0, 0, 0, 1);\nfor (float h = 0.0; h < 5.0; h+=1.0) {\nfor (float w = 0.0; w < 5.0; w+=1.0) {\nvec2 matrixPos = vec2(uStepW * (w - 2.0), uStepH * (h - 2.0));\ncolor.rgb += texture2D(uTexture, vTexCoord + matrixPos).rgb * uMatrix[int(h * 5.0 + w)];\n}\n}\nfloat alpha = texture2D(uTexture, vTexCoord).a;\ngl_FragColor = color;\ngl_FragColor.a = alpha;\n}",Convolute_7_1:"precision highp float;\nuniform sampler2D uTexture;\nuniform float uMatrix[49];\nuniform float uStepW;\nuniform float uStepH;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 color = vec4(0, 0, 0, 0);\nfor (float h = 0.0; h < 7.0; h+=1.0) {\nfor (float w = 0.0; w < 7.0; w+=1.0) {\nvec2 matrixPos = vec2(uStepW * (w - 3.0), uStepH * (h - 3.0));\ncolor += texture2D(uTexture, vTexCoord + matrixPos) * uMatrix[int(h * 7.0 + w)];\n}\n}\ngl_FragColor = color;\n}",Convolute_7_0:"precision highp float;\nuniform sampler2D uTexture;\nuniform float uMatrix[49];\nuniform float uStepW;\nuniform float uStepH;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 color = vec4(0, 0, 0, 1);\nfor (float h = 0.0; h < 7.0; h+=1.0) {\nfor (float w = 0.0; w < 7.0; w+=1.0) {\nvec2 matrixPos = vec2(uStepW * (w - 3.0), uStepH * (h - 3.0));\ncolor.rgb += texture2D(uTexture, vTexCoord + matrixPos).rgb * uMatrix[int(h * 7.0 + w)];\n}\n}\nfloat alpha = texture2D(uTexture, vTexCoord).a;\ngl_FragColor = color;\ngl_FragColor.a = alpha;\n}",Convolute_9_1:"precision highp float;\nuniform sampler2D uTexture;\nuniform float uMatrix[81];\nuniform float uStepW;\nuniform float uStepH;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 color = vec4(0, 0, 0, 0);\nfor (float h = 0.0; h < 9.0; h+=1.0) {\nfor (float w = 0.0; w < 9.0; w+=1.0) {\nvec2 matrixPos = vec2(uStepW * (w - 4.0), uStepH * (h - 4.0));\ncolor += texture2D(uTexture, vTexCoord + matrixPos) * uMatrix[int(h * 9.0 + w)];\n}\n}\ngl_FragColor = color;\n}",Convolute_9_0:"precision highp float;\nuniform sampler2D uTexture;\nuniform float uMatrix[81];\nuniform float uStepW;\nuniform float uStepH;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 color = vec4(0, 0, 0, 1);\nfor (float h = 0.0; h < 9.0; h+=1.0) {\nfor (float w = 0.0; w < 9.0; w+=1.0) {\nvec2 matrixPos = vec2(uStepW * (w - 4.0), uStepH * (h - 4.0));\ncolor.rgb += texture2D(uTexture, vTexCoord + matrixPos).rgb * uMatrix[int(h * 9.0 + w)];\n}\n}\nfloat alpha = texture2D(uTexture, vTexCoord).a;\ngl_FragColor = color;\ngl_FragColor.a = alpha;\n}"},retrieveShader:function(t){var e=Math.sqrt(this.matrix.length),i=this.type+"_"+e+"_"+(this.opaque?1:0),e=this.fragmentSource[i];return t.programCache.hasOwnProperty(i)||(t.programCache[i]=this.createProgram(t.context,e)),t.programCache[i]},applyTo2d:function(t){for(var e,i,r,n,s,o,a,c,h,l,u,f=t.imageData,d=f.data,g=this.matrix,p=Math.round(Math.sqrt(g.length)),m=Math.floor(p/2),v=f.width,b=f.height,f=t.ctx.createImageData(v,b),y=f.data,_=this.opaque?1:0,x=0;x<b;x++)for(h=0;h<v;h++){for(s=4*(x*v+h),u=n=r=i=e=0;u<p;u++)for(l=0;l<p;l++)a=h+l-m,(o=x+u-m)<0||b<=o||a<0||v<=a||(c=g[u*p+l],e+=d[a=4*(o*v+a)]*c,i+=d[1+a]*c,r+=d[2+a]*c,_||(n+=d[3+a]*c));y[s]=e,y[1+s]=i,y[2+s]=r,y[3+s]=_?d[3+s]:n}t.imageData=f},getUniformLocations:function(t,e){return{uMatrix:t.getUniformLocation(e,"uMatrix"),uOpaque:t.getUniformLocation(e,"uOpaque"),uHalfSize:t.getUniformLocation(e,"uHalfSize"),uSize:t.getUniformLocation(e,"uSize")}},sendUniformData:function(t,e){t.uniform1fv(e.uMatrix,this.matrix)},toObject:function(){return i(this.callSuper("toObject"),{opaque:this.opaque,matrix:this.matrix})}}),e.Image.filters.Convolute.fromObject=e.Image.filters.BaseFilter.fromObject}("undefined"!=typeof exports?exports:this),function(t){"use strict";var e=t.fabric||(t.fabric={}),i=e.Image.filters,t=e.util.createClass;i.Grayscale=t(i.BaseFilter,{type:"Grayscale",fragmentSource:{average:"precision highp float;\nuniform sampler2D uTexture;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 color = texture2D(uTexture, vTexCoord);\nfloat average = (color.r + color.b + color.g) / 3.0;\ngl_FragColor = vec4(average, average, average, color.a);\n}",lightness:"precision highp float;\nuniform sampler2D uTexture;\nuniform int uMode;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 col = texture2D(uTexture, vTexCoord);\nfloat average = (max(max(col.r, col.g),col.b) + min(min(col.r, col.g),col.b)) / 2.0;\ngl_FragColor = vec4(average, average, average, col.a);\n}",luminosity:"precision highp float;\nuniform sampler2D uTexture;\nuniform int uMode;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 col = texture2D(uTexture, vTexCoord);\nfloat average = 0.21 * col.r + 0.72 * col.g + 0.07 * col.b;\ngl_FragColor = vec4(average, average, average, col.a);\n}"},mode:"average",mainParameter:"mode",applyTo2d:function(t){for(var e,i=t.imageData.data,r=i.length,n=this.mode,s=0;s<r;s+=4)"average"===n?e=(i[s]+i[s+1]+i[s+2])/3:"lightness"===n?e=(Math.min(i[s],i[s+1],i[s+2])+Math.max(i[s],i[s+1],i[s+2]))/2:"luminosity"===n&&(e=.21*i[s]+.72*i[s+1]+.07*i[s+2]),i[s]=e,i[s+1]=e,i[s+2]=e},retrieveShader:function(t){var e,i=this.type+"_"+this.mode;return t.programCache.hasOwnProperty(i)||(e=this.fragmentSource[this.mode],t.programCache[i]=this.createProgram(t.context,e)),t.programCache[i]},getUniformLocations:function(t,e){return{uMode:t.getUniformLocation(e,"uMode")}},sendUniformData:function(t,e){t.uniform1i(e.uMode,1)},isNeutralState:function(){return!1}}),e.Image.filters.Grayscale.fromObject=e.Image.filters.BaseFilter.fromObject}("undefined"!=typeof exports?exports:this),function(t){"use strict";var e=t.fabric||(t.fabric={}),i=e.Image.filters,t=e.util.createClass;i.Invert=t(i.BaseFilter,{type:"Invert",fragmentSource:"precision highp float;\nuniform sampler2D uTexture;\nuniform int uInvert;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 color = texture2D(uTexture, vTexCoord);\nif (uInvert == 1) {\ngl_FragColor = vec4(1.0 - color.r,1.0 -color.g,1.0 -color.b,color.a);\n} else {\ngl_FragColor = color;\n}\n}",invert:!0,mainParameter:"invert",applyTo2d:function(t){for(var e=t.imageData.data,i=e.length,r=0;r<i;r+=4)e[r]=255-e[r],e[r+1]=255-e[r+1],e[r+2]=255-e[r+2]},isNeutralState:function(){return!this.invert},getUniformLocations:function(t,e){return{uInvert:t.getUniformLocation(e,"uInvert")}},sendUniformData:function(t,e){t.uniform1i(e.uInvert,this.invert)}}),e.Image.filters.Invert.fromObject=e.Image.filters.BaseFilter.fromObject}("undefined"!=typeof exports?exports:this),function(t){"use strict";var e=t.fabric||(t.fabric={}),i=e.util.object.extend,r=e.Image.filters,t=e.util.createClass;r.Noise=t(r.BaseFilter,{type:"Noise",fragmentSource:"precision highp float;\nuniform sampler2D uTexture;\nuniform float uStepH;\nuniform float uNoise;\nuniform float uSeed;\nvarying vec2 vTexCoord;\nfloat rand(vec2 co, float seed, float vScale) {\nreturn fract(sin(dot(co.xy * vScale ,vec2(12.9898 , 78.233))) * 43758.5453 * (seed + 0.01) / 2.0);\n}\nvoid main() {\nvec4 color = texture2D(uTexture, vTexCoord);\ncolor.rgb += (0.5 - rand(vTexCoord, uSeed, 0.1 / uStepH)) * uNoise;\ngl_FragColor = color;\n}",mainParameter:"noise",noise:0,applyTo2d:function(t){if(0!==this.noise)for(var e,i=t.imageData.data,r=(i.length,this.noise),n=0,s=i.length;n<s;n+=4)e=(.5-Math.random())*r,i[n]+=e,i[n+1]+=e,i[n+2]+=e},getUniformLocations:function(t,e){return{uNoise:t.getUniformLocation(e,"uNoise"),uSeed:t.getUniformLocation(e,"uSeed")}},sendUniformData:function(t,e){t.uniform1f(e.uNoise,this.noise/255),t.uniform1f(e.uSeed,Math.random())},toObject:function(){return i(this.callSuper("toObject"),{noise:this.noise})}}),e.Image.filters.Noise.fromObject=e.Image.filters.BaseFilter.fromObject}("undefined"!=typeof exports?exports:this),function(t){"use strict";var e=t.fabric||(t.fabric={}),i=e.Image.filters,t=e.util.createClass;i.Pixelate=t(i.BaseFilter,{type:"Pixelate",blocksize:4,mainParameter:"blocksize",fragmentSource:"precision highp float;\nuniform sampler2D uTexture;\nuniform float uBlocksize;\nuniform float uStepW;\nuniform float uStepH;\nvarying vec2 vTexCoord;\nvoid main() {\nfloat blockW = uBlocksize * uStepW;\nfloat blockH = uBlocksize * uStepW;\nint posX = int(vTexCoord.x / blockW);\nint posY = int(vTexCoord.y / blockH);\nfloat fposX = float(posX);\nfloat fposY = float(posY);\nvec2 squareCoords = vec2(fposX * blockW, fposY * blockH);\nvec4 color = texture2D(uTexture, squareCoords);\ngl_FragColor = color;\n}",applyTo2d:function(t){for(var e,i,r,n,s,o,a,c,h,l,t=t.imageData,u=t.data,f=t.height,d=t.width,g=0;g<f;g+=this.blocksize)for(i=0;i<d;i+=this.blocksize)for(r=u[e=4*g*d+4*i],n=u[1+e],s=u[2+e],o=u[3+e],h=Math.min(g+this.blocksize,f),l=Math.min(i+this.blocksize,d),a=g;a<h;a++)for(c=i;c<l;c++)u[e=4*a*d+4*c]=r,u[1+e]=n,u[2+e]=s,u[3+e]=o},isNeutralState:function(){return 1===this.blocksize},getUniformLocations:function(t,e){return{uBlocksize:t.getUniformLocation(e,"uBlocksize"),uStepW:t.getUniformLocation(e,"uStepW"),uStepH:t.getUniformLocation(e,"uStepH")}},sendUniformData:function(t,e){t.uniform1f(e.uBlocksize,this.blocksize)}}),e.Image.filters.Pixelate.fromObject=e.Image.filters.BaseFilter.fromObject}("undefined"!=typeof exports?exports:this),function(t){"use strict";var h=t.fabric||(t.fabric={}),e=h.util.object.extend,i=h.Image.filters,t=h.util.createClass;i.RemoveColor=t(i.BaseFilter,{type:"RemoveColor",color:"#FFFFFF",fragmentSource:"precision highp float;\nuniform sampler2D uTexture;\nuniform vec4 uLow;\nuniform vec4 uHigh;\nvarying vec2 vTexCoord;\nvoid main() {\ngl_FragColor = texture2D(uTexture, vTexCoord);\nif(all(greaterThan(gl_FragColor.rgb,uLow.rgb)) && all(greaterThan(uHigh.rgb,gl_FragColor.rgb))) {\ngl_FragColor.a = 0.0;\n}\n}",distance:.02,useAlpha:!1,applyTo2d:function(t){for(var e,i,r,n=t.imageData.data,s=255*this.distance,t=new h.Color(this.color).getSource(),o=[t[0]-s,t[1]-s,t[2]-s],a=[t[0]+s,t[1]+s,t[2]+s],c=0;c<n.length;c+=4)e=n[c],i=n[c+1],r=n[c+2],o[0]<e&&o[1]<i&&o[2]<r&&e<a[0]&&i<a[1]&&r<a[2]&&(n[c+3]=0)},getUniformLocations:function(t,e){return{uLow:t.getUniformLocation(e,"uLow"),uHigh:t.getUniformLocation(e,"uHigh")}},sendUniformData:function(t,e){var i=new h.Color(this.color).getSource(),r=parseFloat(this.distance),n=[0+i[0]/255-r,0+i[1]/255-r,0+i[2]/255-r,1],r=[i[0]/255+r,i[1]/255+r,i[2]/255+r,1];t.uniform4fv(e.uLow,n),t.uniform4fv(e.uHigh,r)},toObject:function(){return e(this.callSuper("toObject"),{color:this.color,distance:this.distance})}}),h.Image.filters.RemoveColor.fromObject=h.Image.filters.BaseFilter.fromObject}("undefined"!=typeof exports?exports:this),function(t){"use strict";var e,i=t.fabric||(t.fabric={}),r=i.Image.filters,n=i.util.createClass,s={Brownie:[.5997,.34553,-.27082,0,.186,-.0377,.86095,.15059,0,-.1449,.24113,-.07441,.44972,0,-.02965,0,0,0,1,0],Vintage:[.62793,.32021,-.03965,0,.03784,.02578,.64411,.03259,0,.02926,.0466,-.08512,.52416,0,.02023,0,0,0,1,0],Kodachrome:[1.12855,-.39673,-.03992,0,.24991,-.16404,1.08352,-.05498,0,.09698,-.16786,-.56034,1.60148,0,.13972,0,0,0,1,0],Technicolor:[1.91252,-.85453,-.09155,0,.04624,-.30878,1.76589,-.10601,0,-.27589,-.2311,-.75018,1.84759,0,.12137,0,0,0,1,0],Polaroid:[1.438,-.062,-.062,0,0,-.122,1.378,-.122,0,0,-.016,-.016,1.483,0,0,0,0,0,1,0],Sepia:[.393,.769,.189,0,0,.349,.686,.168,0,0,.272,.534,.131,0,0,0,0,0,1,0],BlackWhite:[1.5,1.5,1.5,0,-1,1.5,1.5,1.5,0,-1,1.5,1.5,1.5,0,-1,0,0,0,1,0]};for(e in s)r[e]=n(r.ColorMatrix,{type:e,matrix:s[e],mainParameter:!1,colorsOnly:!0}),i.Image.filters[e].fromObject=i.Image.filters.BaseFilter.fromObject}("undefined"!=typeof exports?exports:this),function(t){"use strict";var u=t.fabric,e=u.Image.filters,t=u.util.createClass;e.BlendColor=t(e.BaseFilter,{type:"BlendColor",color:"#F95C63",mode:"multiply",alpha:1,fragmentSource:{multiply:"gl_FragColor.rgb *= uColor.rgb;\n",screen:"gl_FragColor.rgb = 1.0 - (1.0 - gl_FragColor.rgb) * (1.0 - uColor.rgb);\n",add:"gl_FragColor.rgb += uColor.rgb;\n",diff:"gl_FragColor.rgb = abs(gl_FragColor.rgb - uColor.rgb);\n",subtract:"gl_FragColor.rgb -= uColor.rgb;\n",lighten:"gl_FragColor.rgb = max(gl_FragColor.rgb, uColor.rgb);\n",darken:"gl_FragColor.rgb = min(gl_FragColor.rgb, uColor.rgb);\n",exclusion:"gl_FragColor.rgb += uColor.rgb - 2.0 * (uColor.rgb * gl_FragColor.rgb);\n",overlay:"if (uColor.r < 0.5) {\ngl_FragColor.r *= 2.0 * uColor.r;\n} else {\ngl_FragColor.r = 1.0 - 2.0 * (1.0 - gl_FragColor.r) * (1.0 - uColor.r);\n}\nif (uColor.g < 0.5) {\ngl_FragColor.g *= 2.0 * uColor.g;\n} else {\ngl_FragColor.g = 1.0 - 2.0 * (1.0 - gl_FragColor.g) * (1.0 - uColor.g);\n}\nif (uColor.b < 0.5) {\ngl_FragColor.b *= 2.0 * uColor.b;\n} else {\ngl_FragColor.b = 1.0 - 2.0 * (1.0 - gl_FragColor.b) * (1.0 - uColor.b);\n}\n",tint:"gl_FragColor.rgb *= (1.0 - uColor.a);\ngl_FragColor.rgb += uColor.rgb;\n"},buildSource:function(t){return"precision highp float;\nuniform sampler2D uTexture;\nuniform vec4 uColor;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 color = texture2D(uTexture, vTexCoord);\ngl_FragColor = color;\nif (color.a > 0.0) {\n"+this.fragmentSource[t]+"}\n}"},retrieveShader:function(t){var e,i=this.type+"_"+this.mode;return t.programCache.hasOwnProperty(i)||(e=this.buildSource(this.mode),t.programCache[i]=this.createProgram(t.context,e)),t.programCache[i]},applyTo2d:function(t){for(var e,i,r,n=t.imageData.data,s=n.length,o=1-this.alpha,t=new u.Color(this.color).getSource(),a=t[0]*this.alpha,c=t[1]*this.alpha,h=t[2]*this.alpha,l=0;l<s;l+=4)switch(e=n[l],i=n[l+1],r=n[l+2],this.mode){case"multiply":n[l]=e*a/255,n[l+1]=i*c/255,n[l+2]=r*h/255;break;case"screen":n[l]=255-(255-e)*(255-a)/255,n[l+1]=255-(255-i)*(255-c)/255,n[l+2]=255-(255-r)*(255-h)/255;break;case"add":n[l]=e+a,n[l+1]=i+c,n[l+2]=r+h;break;case"diff":case"difference":n[l]=Math.abs(e-a),n[l+1]=Math.abs(i-c),n[l+2]=Math.abs(r-h);break;case"subtract":n[l]=e-a,n[l+1]=i-c,n[l+2]=r-h;break;case"darken":n[l]=Math.min(e,a),n[l+1]=Math.min(i,c),n[l+2]=Math.min(r,h);break;case"lighten":n[l]=Math.max(e,a),n[l+1]=Math.max(i,c),n[l+2]=Math.max(r,h);break;case"overlay":n[l]=a<128?2*e*a/255:255-2*(255-e)*(255-a)/255,n[l+1]=c<128?2*i*c/255:255-2*(255-i)*(255-c)/255,n[l+2]=h<128?2*r*h/255:255-2*(255-r)*(255-h)/255;break;case"exclusion":n[l]=a+e-2*a*e/255,n[l+1]=c+i-2*c*i/255,n[l+2]=h+r-2*h*r/255;break;case"tint":n[l]=a+e*o,n[l+1]=c+i*o,n[l+2]=h+r*o}},getUniformLocations:function(t,e){return{uColor:t.getUniformLocation(e,"uColor")}},sendUniformData:function(t,e){var i=new u.Color(this.color).getSource();i[0]=this.alpha*i[0]/255,i[1]=this.alpha*i[1]/255,i[2]=this.alpha*i[2]/255,i[3]=this.alpha,t.uniform4fv(e.uColor,i)},toObject:function(){return{type:this.type,color:this.color,mode:this.mode,alpha:this.alpha}}}),u.Image.filters.BlendColor.fromObject=u.Image.filters.BaseFilter.fromObject}("undefined"!=typeof exports?exports:this),function(t){"use strict";var v=t.fabric,e=v.Image.filters,t=v.util.createClass;e.BlendImage=t(e.BaseFilter,{type:"BlendImage",image:null,mode:"multiply",alpha:1,vertexSource:"attribute vec2 aPosition;\nvarying vec2 vTexCoord;\nvarying vec2 vTexCoord2;\nuniform mat3 uTransformMatrix;\nvoid main() {\nvTexCoord = aPosition;\nvTexCoord2 = (uTransformMatrix * vec3(aPosition, 1.0)).xy;\ngl_Position = vec4(aPosition * 2.0 - 1.0, 0.0, 1.0);\n}",fragmentSource:{multiply:"precision highp float;\nuniform sampler2D uTexture;\nuniform sampler2D uImage;\nuniform vec4 uColor;\nvarying vec2 vTexCoord;\nvarying vec2 vTexCoord2;\nvoid main() {\nvec4 color = texture2D(uTexture, vTexCoord);\nvec4 color2 = texture2D(uImage, vTexCoord2);\ncolor.rgba *= color2.rgba;\ngl_FragColor = color;\n}",mask:"precision highp float;\nuniform sampler2D uTexture;\nuniform sampler2D uImage;\nuniform vec4 uColor;\nvarying vec2 vTexCoord;\nvarying vec2 vTexCoord2;\nvoid main() {\nvec4 color = texture2D(uTexture, vTexCoord);\nvec4 color2 = texture2D(uImage, vTexCoord2);\ncolor.a = color2.a;\ngl_FragColor = color;\n}"},retrieveShader:function(t){var e=this.type+"_"+this.mode,i=this.fragmentSource[this.mode];return t.programCache.hasOwnProperty(e)||(t.programCache[e]=this.createProgram(t.context,i)),t.programCache[e]},applyToWebGL:function(t){var e=t.context,i=this.createTexture(t.filterBackend,this.image);this.bindAdditionalTexture(e,i,e.TEXTURE1),this.callSuper("applyToWebGL",t),this.unbindAdditionalTexture(e,e.TEXTURE1)},createTexture:function(t,e){return t.getCachedTexture(e.cacheKey,e._element)},calculateMatrix:function(){var t=this.image,e=t._element.width,i=t._element.height;return[1/t.scaleX,0,0,0,1/t.scaleY,0,-t.left/e,-t.top/i,1]},applyTo2d:function(t){var e,i,r,n,s,o,a,c,h=t.imageData,l=t.filterBackend.resources,u=h.data,f=u.length,d=h.width,g=h.height,t=this.image;l.blendImage||(l.blendImage=v.util.createCanvasElement()),l=(h=l.blendImage).getContext("2d"),h.width!==d||h.height!==g?(h.width=d,h.height=g):l.clearRect(0,0,d,g),l.setTransform(t.scaleX,0,0,t.scaleY,t.left,t.top),l.drawImage(t._element,0,0,d,g);for(var p=l.getImageData(0,0,d,g).data,m=0;m<f;m+=4)switch(s=u[m],o=u[m+1],a=u[m+2],c=u[m+3],e=p[m],i=p[m+1],r=p[m+2],n=p[m+3],this.mode){case"multiply":u[m]=s*e/255,u[m+1]=o*i/255,u[m+2]=a*r/255,u[m+3]=c*n/255;break;case"mask":u[m+3]=n}},getUniformLocations:function(t,e){return{uTransformMatrix:t.getUniformLocation(e,"uTransformMatrix"),uImage:t.getUniformLocation(e,"uImage")}},sendUniformData:function(t,e){var i=this.calculateMatrix();t.uniform1i(e.uImage,1),t.uniformMatrix3fv(e.uTransformMatrix,!1,i)},toObject:function(){return{type:this.type,image:this.image&&this.image.toObject(),mode:this.mode,alpha:this.alpha}}}),v.Image.filters.BlendImage.fromObject=function(i,r){v.Image.fromObject(i.image,function(t){var e=v.util.object.clone(i);e.image=t,r(new v.Image.filters.BlendImage(e))})}}("undefined"!=typeof exports?exports:this),function(t){"use strict";var m=t.fabric||(t.fabric={}),D=Math.pow,j=Math.floor,A=Math.sqrt,M=Math.abs,o=Math.round,r=Math.sin,F=Math.ceil,e=m.Image.filters,t=m.util.createClass;e.Resize=t(e.BaseFilter,{type:"Resize",resizeType:"hermite",scaleX:1,scaleY:1,lanczosLobes:3,getUniformLocations:function(t,e){return{uDelta:t.getUniformLocation(e,"uDelta"),uTaps:t.getUniformLocation(e,"uTaps")}},sendUniformData:function(t,e){t.uniform2fv(e.uDelta,this.horizontal?[1/this.width,0]:[0,1/this.height]),t.uniform1fv(e.uTaps,this.taps)},retrieveShader:function(t){var e=this.getFilterWindow(),i=this.type+"_"+e;return t.programCache.hasOwnProperty(i)||(e=this.generateShader(e),t.programCache[i]=this.createProgram(t.context,e)),t.programCache[i]},getFilterWindow:function(){var t=this.tempScale;return Math.ceil(this.lanczosLobes/t)},getTaps:function(){for(var t=this.lanczosCreate(this.lanczosLobes),e=this.tempScale,i=this.getFilterWindow(),r=new Array(i),n=1;n<=i;n++)r[n-1]=t(n*e);return r},generateShader:function(t){for(var e=new Array(t),i=this.fragmentSourceTOP,r=1;r<=t;r++)e[r-1]=r+".0 * uDelta";return i+="uniform float uTaps["+t+"];\n",i+="void main() {\n",i+="  vec4 color = texture2D(uTexture, vTexCoord);\n",i+="  float sum = 1.0;\n",e.forEach(function(t,e){i+="  color += texture2D(uTexture, vTexCoord + "+t+") * uTaps["+e+"];\n",i+="  color += texture2D(uTexture, vTexCoord - "+t+") * uTaps["+e+"];\n",i+="  sum += 2.0 * uTaps["+e+"];\n"}),i+="  gl_FragColor = color / sum;\n",i+="}"},fragmentSourceTOP:"precision highp float;\nuniform sampler2D uTexture;\nuniform vec2 uDelta;\nvarying vec2 vTexCoord;\n",applyTo:function(t){t.webgl?(t.passes++,this.width=t.sourceWidth,this.horizontal=!0,this.dW=Math.round(this.width*this.scaleX),this.dH=t.sourceHeight,this.tempScale=this.dW/this.width,this.taps=this.getTaps(),t.destinationWidth=this.dW,this._setupFrameBuffer(t),this.applyToWebGL(t),this._swapTextures(t),t.sourceWidth=t.destinationWidth,this.height=t.sourceHeight,this.horizontal=!1,this.dH=Math.round(this.height*this.scaleY),this.tempScale=this.dH/this.height,this.taps=this.getTaps(),t.destinationHeight=this.dH,this._setupFrameBuffer(t),this.applyToWebGL(t),this._swapTextures(t),t.sourceHeight=t.destinationHeight):this.applyTo2d(t)},isNeutralState:function(){return 1===this.scaleX&&1===this.scaleY},lanczosCreate:function(i){return function(t){if(i<=t||t<=-i)return 0;if(t<1.1920929e-7&&-1.1920929e-7<t)return 1;var e=(t*=Math.PI)/i;return r(t)/t*r(e)/e}},applyTo2d:function(t){var e=t.imageData,i=this.scaleX,r=this.scaleY;this.rcpScaleX=1/i,this.rcpScaleY=1/r;var n,s=e.width,e=e.height,i=o(s*i),r=o(e*r);"sliceHack"===this.resizeType?n=this.sliceByTwo(t,s,e,i,r):"hermite"===this.resizeType?n=this.hermiteFastResize(t,s,e,i,r):"bilinear"===this.resizeType?n=this.bilinearFiltering(t,s,e,i,r):"lanczos"===this.resizeType&&(n=this.lanczosResize(t,s,e,i,r)),t.imageData=n},sliceByTwo:function(t,e,i,r,n){var s,o,a=t.imageData,c=!1,h=!1,l=.5*e,u=.5*i,t=m.filterBackend.resources,f=0,d=0,g=e,p=0;for(t.sliceByTwo||(t.sliceByTwo=document.createElement("canvas")),((s=t.sliceByTwo).width<1.5*e||s.height<i)&&(s.width=1.5*e,s.height=i),(o=s.getContext("2d")).clearRect(0,0,1.5*e,i),o.putImageData(a,0,0),r=j(r),n=j(n);!c||!h;)i=u,r<j(.5*(e=l))?l=j(.5*l):(l=r,c=!0),n<j(.5*u)?u=j(.5*u):(u=n,h=!0),o.drawImage(s,f,d,e,i,g,p,l,u),f=g,d=p,p+=u;return o.getImageData(f,d,r,n)},lanczosResize:function(t,d,g,p,m){var v=t.imageData.data,b=t.ctx.createImageData(p,m),y=b.data,_=this.lanczosCreate(this.lanczosLobes),x=this.rcpScaleX,C=this.rcpScaleY,S=2/this.rcpScaleX,T=2/this.rcpScaleY,w=F(x*this.lanczosLobes/2),O=F(C*this.lanczosLobes/2),k={},P={},E={};return function t(e){var i,r,n,s,o,a,c,h,l,u;for(P.x=(e+.5)*x,E.x=j(P.x),i=0;i<m;i++){for(P.y=(i+.5)*C,E.y=j(P.y),h=c=a=o=s=0,r=E.x-w;r<=E.x+w;r++)if(!(r<0||d<=r)){l=j(1e3*M(r-P.x)),k[l]||(k[l]={});for(var f=E.y-O;f<=E.y+O;f++)f<0||g<=f||(u=j(1e3*M(f-P.y)),k[l][u]||(k[l][u]=_(A(D(l*S,2)+D(u*T,2))/1e3)),0<(u=k[l][u])&&(s+=u,o+=u*v[n=4*(f*d+r)],a+=u*v[n+1],c+=u*v[n+2],h+=u*v[n+3]))}y[n=4*(i*p+e)]=o/s,y[n+1]=a/s,y[n+2]=c/s,y[n+3]=h/s}return++e<p?t(e):b}(0)},bilinearFiltering:function(t,e,i,r,n){for(var s,o,a,c,h,l,u,f,d,g,p,m=0,v=this.rcpScaleX,b=this.rcpScaleY,y=4*(e-1),_=t.imageData.data,t=t.ctx.createImageData(r,n),x=t.data,C=0;C<n;C++)for(u=0;u<r;u++)for(f=v*u-(h=j(v*u)),d=b*C-(l=j(b*C)),p=4*(l*e+h),g=0;g<4;g++)s=_[p+g],o=_[4+p+g],a=_[p+y+g],c=_[p+y+4+g],x[m++]=s*(1-f)*(1-d)+o*f*(1-d)+a*d*(1-f)+c*f*d;return t},hermiteFastResize:function(t,e,i,r,n){for(var s=this.rcpScaleX,o=this.rcpScaleY,a=F(s/2),c=F(o/2),h=t.imageData.data,t=t.ctx.createImageData(r,n),l=t.data,u=0;u<n;u++)for(var f=0;f<r;f++){for(var d=4*(f+u*r),g=0,p=0,m=0,v=0,b=0,y=0,_=0,x=(u+.5)*o,C=j(u*o);C<(u+1)*o;C++)for(var S=M(x-(C+.5))/c,T=(f+.5)*s,w=S*S,O=j(f*s);O<(f+1)*s;O++){var k=M(T-(O+.5))/a,P=A(w+k*k);1<P&&P<-1||0<(g=2*P*P*P-3*P*P+1)&&(_+=g*h[3+(k=4*(O+C*e))],m+=g,v+=(g=h[3+k]<255?g*h[3+k]/250:g)*h[k],b+=g*h[1+k],y+=g*h[2+k],p+=g)}l[d]=v/p,l[1+d]=b/p,l[2+d]=y/p,l[3+d]=_/m}return t},toObject:function(){return{type:this.type,scaleX:this.scaleX,scaleY:this.scaleY,resizeType:this.resizeType,lanczosLobes:this.lanczosLobes}}}),m.Image.filters.Resize.fromObject=m.Image.filters.BaseFilter.fromObject}("undefined"!=typeof exports?exports:this),function(t){"use strict";var e=t.fabric||(t.fabric={}),i=e.Image.filters,t=e.util.createClass;i.Contrast=t(i.BaseFilter,{type:"Contrast",fragmentSource:"precision highp float;\nuniform sampler2D uTexture;\nuniform float uContrast;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 color = texture2D(uTexture, vTexCoord);\nfloat contrastF = 1.015 * (uContrast + 1.0) / (1.0 * (1.015 - uContrast));\ncolor.rgb = contrastF * (color.rgb - 0.5) + 0.5;\ngl_FragColor = color;\n}",contrast:0,mainParameter:"contrast",applyTo2d:function(t){if(0!==this.contrast)for(var e=t.imageData.data,i=e.length,t=Math.floor(255*this.contrast),r=259*(t+255)/(255*(259-t)),n=0;n<i;n+=4)e[n]=r*(e[n]-128)+128,e[n+1]=r*(e[n+1]-128)+128,e[n+2]=r*(e[n+2]-128)+128},getUniformLocations:function(t,e){return{uContrast:t.getUniformLocation(e,"uContrast")}},sendUniformData:function(t,e){t.uniform1f(e.uContrast,this.contrast)}}),e.Image.filters.Contrast.fromObject=e.Image.filters.BaseFilter.fromObject}("undefined"!=typeof exports?exports:this),function(t){"use strict";var e=t.fabric||(t.fabric={}),i=e.Image.filters,t=e.util.createClass;i.Saturation=t(i.BaseFilter,{type:"Saturation",fragmentSource:"precision highp float;\nuniform sampler2D uTexture;\nuniform float uSaturation;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 color = texture2D(uTexture, vTexCoord);\nfloat rgMax = max(color.r, color.g);\nfloat rgbMax = max(rgMax, color.b);\ncolor.r += rgbMax != color.r ? (rgbMax - color.r) * uSaturation : 0.00;\ncolor.g += rgbMax != color.g ? (rgbMax - color.g) * uSaturation : 0.00;\ncolor.b += rgbMax != color.b ? (rgbMax - color.b) * uSaturation : 0.00;\ngl_FragColor = color;\n}",saturation:0,mainParameter:"saturation",applyTo2d:function(t){if(0!==this.saturation)for(var e,i=t.imageData.data,r=i.length,n=-this.saturation,s=0;s<r;s+=4)e=Math.max(i[s],i[s+1],i[s+2]),i[s]+=e!==i[s]?(e-i[s])*n:0,i[s+1]+=e!==i[s+1]?(e-i[s+1])*n:0,i[s+2]+=e!==i[s+2]?(e-i[s+2])*n:0},getUniformLocations:function(t,e){return{uSaturation:t.getUniformLocation(e,"uSaturation")}},sendUniformData:function(t,e){t.uniform1f(e.uSaturation,-this.saturation)}}),e.Image.filters.Saturation.fromObject=e.Image.filters.BaseFilter.fromObject}("undefined"!=typeof exports?exports:this),function(t){"use strict";var e=t.fabric||(t.fabric={}),i=e.Image.filters,t=e.util.createClass;i.Vibrance=t(i.BaseFilter,{type:"Vibrance",fragmentSource:"precision highp float;\nuniform sampler2D uTexture;\nuniform float uVibrance;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 color = texture2D(uTexture, vTexCoord);\nfloat max = max(color.r, max(color.g, color.b));\nfloat avg = (color.r + color.g + color.b) / 3.0;\nfloat amt = (abs(max - avg) * 2.0) * uVibrance;\ncolor.r += max != color.r ? (max - color.r) * amt : 0.00;\ncolor.g += max != color.g ? (max - color.g) * amt : 0.00;\ncolor.b += max != color.b ? (max - color.b) * amt : 0.00;\ngl_FragColor = color;\n}",vibrance:0,mainParameter:"vibrance",applyTo2d:function(t){if(0!==this.vibrance)for(var e,i,r=t.imageData.data,n=r.length,s=-this.vibrance,o=0;o<n;o+=4)e=Math.max(r[o],r[o+1],r[o+2]),i=(r[o]+r[o+1]+r[o+2])/3,i=2*Math.abs(e-i)/255*s,r[o]+=e!==r[o]?(e-r[o])*i:0,r[o+1]+=e!==r[o+1]?(e-r[o+1])*i:0,r[o+2]+=e!==r[o+2]?(e-r[o+2])*i:0},getUniformLocations:function(t,e){return{uVibrance:t.getUniformLocation(e,"uVibrance")}},sendUniformData:function(t,e){t.uniform1f(e.uVibrance,-this.vibrance)}}),e.Image.filters.Vibrance.fromObject=e.Image.filters.BaseFilter.fromObject}("undefined"!=typeof exports?exports:this),function(t){"use strict";var d=t.fabric||(t.fabric={}),e=d.Image.filters,t=d.util.createClass;e.Blur=t(e.BaseFilter,{type:"Blur",fragmentSource:"precision highp float;\nuniform sampler2D uTexture;\nuniform vec2 uDelta;\nvarying vec2 vTexCoord;\nconst float nSamples = 15.0;\nvec3 v3offset = vec3(12.9898, 78.233, 151.7182);\nfloat random(vec3 scale) {\nreturn fract(sin(dot(gl_FragCoord.xyz, scale)) * 43758.5453);\n}\nvoid main() {\nvec4 color = vec4(0.0);\nfloat total = 0.0;\nfloat offset = random(v3offset);\nfor (float t = -nSamples; t <= nSamples; t++) {\nfloat percent = (t + offset - 0.5) / nSamples;\nfloat weight = 1.0 - abs(percent);\ncolor += texture2D(uTexture, vTexCoord + uDelta * percent) * weight;\ntotal += weight;\n}\ngl_FragColor = color / total;\n}",blur:0,mainParameter:"blur",applyTo:function(t){t.webgl?(this.aspectRatio=t.sourceWidth/t.sourceHeight,t.passes++,this._setupFrameBuffer(t),this.horizontal=!0,this.applyToWebGL(t),this._swapTextures(t),this._setupFrameBuffer(t),this.horizontal=!1,this.applyToWebGL(t),this._swapTextures(t)):this.applyTo2d(t)},applyTo2d:function(t){t.imageData=this.simpleBlur(t)},simpleBlur:function(t){var e,i,r=t.filterBackend.resources,n=t.imageData.width,s=t.imageData.height;r.blurLayer1||(r.blurLayer1=d.util.createCanvasElement(),r.blurLayer2=d.util.createCanvasElement()),e=r.blurLayer1,i=r.blurLayer2,e.width===n&&e.height===s||(i.width=e.width=n,i.height=e.height=s);var o,a,c,h,l=e.getContext("2d"),u=i.getContext("2d"),f=.06*this.blur*.5;for(l.putImageData(t.imageData,0,0),u.clearRect(0,0,n,s),h=-15;h<=15;h++)c=f*(a=h/15)*n+(o=(Math.random()-.5)/4),u.globalAlpha=1-Math.abs(a),u.drawImage(e,c,o),l.drawImage(i,0,0),u.globalAlpha=1,u.clearRect(0,0,i.width,i.height);for(h=-15;h<=15;h++)c=f*(a=h/15)*s+(o=(Math.random()-.5)/4),u.globalAlpha=1-Math.abs(a),u.drawImage(e,o,c),l.drawImage(i,0,0),u.globalAlpha=1,u.clearRect(0,0,i.width,i.height);t.ctx.drawImage(e,0,0);t=t.ctx.getImageData(0,0,e.width,e.height);return l.globalAlpha=1,l.clearRect(0,0,e.width,e.height),t},getUniformLocations:function(t,e){return{delta:t.getUniformLocation(e,"uDelta")}},sendUniformData:function(t,e){var i=this.chooseRightDelta();t.uniform2fv(e.delta,i)},chooseRightDelta:function(){var t=1,e=[0,0];return this.horizontal?1<this.aspectRatio&&(t=1/this.aspectRatio):this.aspectRatio<1&&(t=this.aspectRatio),t=t*this.blur*.12,this.horizontal?e[0]=t:e[1]=t,e}}),e.Blur.fromObject=d.Image.filters.BaseFilter.fromObject}("undefined"!=typeof exports?exports:this),function(t){"use strict";var e=t.fabric||(t.fabric={}),i=e.Image.filters,t=e.util.createClass;i.Gamma=t(i.BaseFilter,{type:"Gamma",fragmentSource:"precision highp float;\nuniform sampler2D uTexture;\nuniform vec3 uGamma;\nvarying vec2 vTexCoord;\nvoid main() {\nvec4 color = texture2D(uTexture, vTexCoord);\nvec3 correction = (1.0 / uGamma);\ncolor.r = pow(color.r, correction.r);\ncolor.g = pow(color.g, correction.g);\ncolor.b = pow(color.b, correction.b);\ngl_FragColor = color;\ngl_FragColor.rgb *= color.a;\n}",gamma:[1,1,1],mainParameter:"gamma",initialize:function(t){this.gamma=[1,1,1],i.BaseFilter.prototype.initialize.call(this,t)},applyTo2d:function(t){var e,i=t.imageData.data,t=this.gamma,r=i.length,n=1/t[0],s=1/t[1],o=1/t[2];for(this.rVals||(this.rVals=new Uint8Array(256),this.gVals=new Uint8Array(256),this.bVals=new Uint8Array(256)),e=0,r=256;e<r;e++)this.rVals[e]=255*Math.pow(e/255,n),this.gVals[e]=255*Math.pow(e/255,s),this.bVals[e]=255*Math.pow(e/255,o);for(e=0,r=i.length;e<r;e+=4)i[e]=this.rVals[i[e]],i[e+1]=this.gVals[i[e+1]],i[e+2]=this.bVals[i[e+2]]},getUniformLocations:function(t,e){return{uGamma:t.getUniformLocation(e,"uGamma")}},sendUniformData:function(t,e){t.uniform3fv(e.uGamma,this.gamma)}}),e.Image.filters.Gamma.fromObject=e.Image.filters.BaseFilter.fromObject}("undefined"!=typeof exports?exports:this),function(t){"use strict";var i=t.fabric||(t.fabric={}),e=i.Image.filters,t=i.util.createClass;e.Composed=t(e.BaseFilter,{type:"Composed",subFilters:[],initialize:function(t){this.callSuper("initialize",t),this.subFilters=this.subFilters.slice(0)},applyTo:function(e){e.passes+=this.subFilters.length-1,this.subFilters.forEach(function(t){t.applyTo(e)})},toObject:function(){return i.util.object.extend(this.callSuper("toObject"),{subFilters:this.subFilters.map(function(t){return t.toObject()})})},isNeutralState:function(){return!this.subFilters.some(function(t){return!t.isNeutralState()})}}),i.Image.filters.Composed.fromObject=function(t,e){t=(t.subFilters||[]).map(function(t){return new i.Image.filters[t.type](t)}),t=new i.Image.filters.Composed({subFilters:t});return e&&e(t),t}}("undefined"!=typeof exports?exports:this),function(t){"use strict";var r=t.fabric||(t.fabric={}),e=r.Image.filters,t=r.util.createClass;e.HueRotation=t(e.ColorMatrix,{type:"HueRotation",rotation:0,mainParameter:"rotation",calculateMatrix:function(){var t=this.rotation*Math.PI,e=r.util.cos(t),i=r.util.sin(t),t=Math.sqrt(1/3)*i,i=1-e;this.matrix=[1,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,1,0],this.matrix[0]=e+i/3,this.matrix[1]=1/3*i-t,this.matrix[2]=1/3*i+t,this.matrix[5]=1/3*i+t,this.matrix[6]=e+1/3*i,this.matrix[7]=1/3*i-t,this.matrix[10]=1/3*i-t,this.matrix[11]=1/3*i+t,this.matrix[12]=e+1/3*i},isNeutralState:function(t){return this.calculateMatrix(),e.BaseFilter.prototype.isNeutralState.call(this,t)},applyTo:function(t){this.calculateMatrix(),e.BaseFilter.prototype.applyTo.call(this,t)}}),r.Image.filters.HueRotation.fromObject=r.Image.filters.BaseFilter.fromObject}("undefined"!=typeof exports?exports:this),function(t){"use strict";var e,d=t.fabric||(t.fabric={}),o=d.util.object.clone;d.Text?d.warn("fabric.Text is already defined"):(e="fontFamily fontWeight fontSize text underline overline linethrough textAlign fontStyle lineHeight textBackgroundColor charSpacing styles direction path pathStartOffset pathSide".split(" "),d.Text=d.util.createClass(d.Object,{_dimensionAffectingProps:["fontSize","fontWeight","fontFamily","fontStyle","lineHeight","text","charSpacing","textAlign","styles","path","pathStartOffset","pathSide"],_reNewline:/\r?\n/,_reSpacesAndTabs:/[ \t\r]/g,_reSpaceAndTab:/[ \t\r]/,_reWords:/\S+/g,type:"text",fontSize:40,fontWeight:"normal",fontFamily:"Times New Roman",underline:!1,overline:!1,linethrough:!1,textAlign:"left",fontStyle:"normal",lineHeight:1.16,superscript:{size:.6,baseline:-.35},subscript:{size:.6,baseline:.11},textBackgroundColor:"",stateProperties:d.Object.prototype.stateProperties.concat(e),cacheProperties:d.Object.prototype.cacheProperties.concat(e),stroke:null,shadow:null,path:null,pathStartOffset:0,pathSide:"left",_fontSizeFraction:.222,offsets:{underline:.1,linethrough:-.315,overline:-.88},_fontSizeMult:1.13,charSpacing:0,styles:null,_measuringContext:null,deltaY:0,direction:"ltr",_styleProperties:["stroke","strokeWidth","fill","fontFamily","fontSize","fontWeight","fontStyle","underline","overline","linethrough","deltaY","textBackgroundColor"],__charBounds:[],CACHE_FONT_SIZE:400,MIN_TEXT_WIDTH:2,initialize:function(t,e){this.styles=e&&e.styles||{},this.text=t,this.__skipDimension=!0,this.callSuper("initialize",e),this.path&&this.setPathInfo(),this.__skipDimension=!1,this.initDimensions(),this.setCoords(),this.setupState({propertySet:"_dimensionAffectingProps"})},setPathInfo:function(){var t=this.path;t&&(t.segmentsInfo=d.util.getPathSegmentsInfo(t.path))},getMeasuringContext:function(){return d._measuringContext||(d._measuringContext=this.canvas&&this.canvas.contextCache||d.util.createCanvasElement().getContext("2d")),d._measuringContext},_splitText:function(){var t=this._splitTextIntoLines(this.text);return this.textLines=t.lines,this._textLines=t.graphemeLines,this._unwrappedTextLines=t._unwrappedLines,this._text=t.graphemeText,t},initDimensions:function(){this.__skipDimension||(this._splitText(),this._clearCache(),this.path?(this.width=this.path.width,this.height=this.path.height):(this.width=this.calcTextWidth()||this.cursorWidth||this.MIN_TEXT_WIDTH,this.height=this.calcTextHeight()),-1!==this.textAlign.indexOf("justify")&&this.enlargeSpaces(),this.saveState({propertySet:"_dimensionAffectingProps"}))},enlargeSpaces:function(){for(var t,e,i,r,n,s=0,o=this._textLines.length;s<o;s++)if(("justify"===this.textAlign||s!==o-1&&!this.isEndOfWrapping(s))&&(e=0,i=this._textLines[s],(t=this.getLineWidth(s))<this.width&&(n=this.textLines[s].match(this._reSpacesAndTabs))))for(var a=n.length,c=(this.width-t)/a,h=0,l=i.length;h<=l;h++)r=this.__charBounds[s][h],this._reSpaceAndTab.test(i[h])?(r.width+=c,r.kernedWidth+=c,r.left+=e,e+=c):r.left+=e},isEndOfWrapping:function(t){return t===this._textLines.length-1},missingNewlineOffset:function(){return 1},toString:function(){return"#<fabric.Text ("+this.complexity()+'): { "text": "'+this.text+'", "fontFamily": "'+this.fontFamily+'" }>'},_getCacheCanvasDimensions:function(){var t=this.callSuper("_getCacheCanvasDimensions"),e=this.fontSize;return t.width+=e*t.zoomX,t.height+=e*t.zoomY,t},_render:function(t){var e=this.path;e&&!e.isNotVisible()&&e._render(t),this._setTextStyles(t),this._renderTextLinesBackground(t),this._renderTextDecoration(t,"underline"),this._renderText(t),this._renderTextDecoration(t,"overline"),this._renderTextDecoration(t,"linethrough")},_renderText:function(t){"stroke"===this.paintFirst?(this._renderTextStroke(t),this._renderTextFill(t)):(this._renderTextFill(t),this._renderTextStroke(t))},_setTextStyles:function(t,e,i){t.textBaseline="alphabetic",t.font=this._getFontDeclaration(e,i)},calcTextWidth:function(){for(var t=this.getLineWidth(0),e=1,i=this._textLines.length;e<i;e++){var r=this.getLineWidth(e);t<r&&(t=r)}return t},_renderTextLine:function(t,e,i,r,n,s){this._renderChars(t,e,i,r,n,s)},_renderTextLinesBackground:function(t){if(this.textBackgroundColor||this.styleHas("textBackgroundColor")){for(var e,i,r,n,s=t.fillStyle,o=this._getLeftOffset(),a=this._getTopOffset(),c=0,h=0,l=this.path,u=0,f=this._textLines.length;u<f;u++)if(e=this.getHeightOfLine(u),this.textBackgroundColor||this.styleHas("textBackgroundColor",u)){for(var d=this._textLines[u],g=this._getLineLeftOffset(u),h=0,c=0,p=this.getValueOfPropertyAt(u,0,"textBackgroundColor"),m=0,v=d.length;m<v;m++)i=this.__charBounds[u][m],r=this.getValueOfPropertyAt(u,m,"textBackgroundColor"),l?(t.save(),t.translate(i.renderLeft,i.renderTop),t.rotate(i.angle),(t.fillStyle=r)&&t.fillRect(-i.width/2,-e/this.lineHeight*(1-this._fontSizeFraction),i.width,e/this.lineHeight),t.restore()):r!==p?(n=o+g+c,"rtl"===this.direction&&(n=this.width-n-h),(t.fillStyle=p)&&t.fillRect(n,a,h,e/this.lineHeight),c=i.left,h=i.width,p=r):h+=i.kernedWidth;r&&!l&&(n=o+g+c,"rtl"===this.direction&&(n=this.width-n-h),t.fillStyle=r,t.fillRect(n,a,h,e/this.lineHeight)),a+=e}else a+=e;t.fillStyle=s,this._removeShadow(t)}},getFontCache:function(t){var e=t.fontFamily.toLowerCase();d.charWidthsCache[e]||(d.charWidthsCache[e]={});e=d.charWidthsCache[e],t=t.fontStyle.toLowerCase()+"_"+(t.fontWeight+"").toLowerCase();return e[t]||(e[t]={}),e[t]},_measureChar:function(t,e,i,r){var n,s,o,a,c,h=this.getFontCache(e),l=i+t,u=this._getFontDeclaration(e)===this._getFontDeclaration(r),r=e.fontSize/this.CACHE_FONT_SIZE;return i&&void 0!==h[i]&&(o=h[i]),void 0!==h[t]&&(a=n=h[t]),u&&void 0!==h[l]&&(a=(s=h[l])-o),void 0!==n&&void 0!==o&&void 0!==s||(c=this.getMeasuringContext(),this._setTextStyles(c,e,!0)),void 0===n&&(a=n=c.measureText(t).width,h[t]=n),void 0===o&&u&&i&&(o=c.measureText(i).width,h[i]=o),u&&void 0===s&&(s=c.measureText(l).width,a=(h[l]=s)-o),{width:n*r,kernedWidth:a*r}},getHeightOfChar:function(t,e){return this.getValueOfPropertyAt(t,e,"fontSize")},measureLine:function(t){t=this._measureLine(t);return 0!==this.charSpacing&&(t.width-=this._getWidthOfCharSpacing()),t.width<0&&(t.width=0),t},_measureLine:function(t){var e,i,r,n,s,o,a=0,c=this._textLines[t],h=new Array(c.length),l=0,u=this.path,f="right"===this.pathSide;for(this.__charBounds[t]=h,e=0;e<c.length;e++)i=c[e],n=this._getGraphemeBox(i,t,e,r),a+=(h[e]=n).kernedWidth,r=i;if(h[e]={left:n?n.left+n.width:0,width:0,kernedWidth:0,height:this.fontSize},u){switch(o=u.segmentsInfo[u.segmentsInfo.length-1].length,(s=d.util.getPointOnPath(u.path,0,u.segmentsInfo)).x+=u.pathOffset.x,s.y+=u.pathOffset.y,this.textAlign){case"left":l=f?o-a:0;break;case"center":l=(o-a)/2;break;case"right":l=f?0:o-a}for(l+=this.pathStartOffset*(f?-1:1),e=f?c.length-1:0;f?0<=e:e<c.length;f?e--:e++)n=h[e],o<l?l%=o:l<0&&(l+=o),this._setGraphemeOnPath(l,n,s),l+=n.kernedWidth}return{width:a,numOfSpaces:0}},_setGraphemeOnPath:function(t,e,i){var r=t+e.kernedWidth/2,t=this.path,t=d.util.getPointOnPath(t.path,r,t.segmentsInfo);e.renderLeft=t.x-i.x,e.renderTop=t.y-i.y,e.angle=t.angle+("right"===this.pathSide?Math.PI:0)},_getGraphemeBox:function(t,e,i,r,n){var s=this.getCompleteStyleDeclaration(e,i),o=r?this.getCompleteStyleDeclaration(e,i-1):{},a=this._measureChar(t,s,r,o),t=a.kernedWidth,r=a.width;0!==this.charSpacing&&(r+=o=this._getWidthOfCharSpacing(),t+=o);s={width:r,left:0,height:s.fontSize,kernedWidth:t,deltaY:s.deltaY};return 0<i&&!n&&(i=this.__charBounds[e][i-1],s.left=i.left+i.width+a.kernedWidth-a.width),s},getHeightOfLine:function(t){if(this.__lineHeights[t])return this.__lineHeights[t];for(var e=this._textLines[t],i=this.getHeightOfChar(t,0),r=1,n=e.length;r<n;r++)i=Math.max(this.getHeightOfChar(t,r),i);return this.__lineHeights[t]=i*this.lineHeight*this._fontSizeMult},calcTextHeight:function(){for(var t,e=0,i=0,r=this._textLines.length;i<r;i++)t=this.getHeightOfLine(i),e+=i===r-1?t/this.lineHeight:t;return e},_getLeftOffset:function(){return"ltr"===this.direction?-this.width/2:this.width/2},_getTopOffset:function(){return-this.height/2},_renderTextCommon:function(t,e){t.save();for(var i=0,r=this._getLeftOffset(),n=this._getTopOffset(),s=0,o=this._textLines.length;s<o;s++){var a=this.getHeightOfLine(s),c=a/this.lineHeight,h=this._getLineLeftOffset(s);this._renderTextLine(e,t,this._textLines[s],r+h,n+i+c,s),i+=a}t.restore()},_renderTextFill:function(t){(this.fill||this.styleHas("fill"))&&this._renderTextCommon(t,"fillText")},_renderTextStroke:function(t){(this.stroke&&0!==this.strokeWidth||!this.isEmptyStyles())&&(this.shadow&&!this.shadow.affectStroke&&this._removeShadow(t),t.save(),this._setLineDash(t,this.strokeDashArray),t.beginPath(),this._renderTextCommon(t,"strokeText"),t.closePath(),t.restore())},_renderChars:function(t,e,i,r,n,s){var o,a,c,h,l=this.getHeightOfLine(s),u=-1!==this.textAlign.indexOf("justify"),f="",d=0,g=this.path,p=!u&&0===this.charSpacing&&this.isEmptyStyles(s)&&!g,m="ltr"===this.direction,v="ltr"===this.direction?1:-1;if(e.save(),n-=l*this._fontSizeFraction/this.lineHeight,p)return e.canvas.setAttribute("dir",m?"ltr":"rtl"),e.direction=m?"ltr":"rtl",e.textAlign=m?"left":"right",this._renderChar(t,e,s,0,i.join(""),r,n,l),void e.restore();for(var b=0,y=i.length-1;b<=y;b++)c=b===y||this.charSpacing||g,f+=i[b],h=this.__charBounds[s][b],0===d?(r+=v*(h.kernedWidth-h.width),d+=h.width):d+=h.kernedWidth,(c=u&&!c&&this._reSpaceAndTab.test(i[b])?!0:c)||(o=o||this.getCompleteStyleDeclaration(s,b),a=this.getCompleteStyleDeclaration(s,b+1),c=this._hasStyleChanged(o,a)),c&&(g?(e.save(),e.translate(h.renderLeft,h.renderTop),e.rotate(h.angle),this._renderChar(t,e,s,b,f,-d/2,0,l),e.restore()):(h=r,e.canvas.setAttribute("dir",m?"ltr":"rtl"),e.direction=m?"ltr":"rtl",e.textAlign=m?"left":"right",this._renderChar(t,e,s,b,f,h,n,l)),f="",o=a,r+=v*d,d=0);e.restore()},_applyPatternGradientTransformText:function(t){var e,i=d.util.createCanvasElement(),r=this.width+this.strokeWidth,n=this.height+this.strokeWidth;return i.width=r,i.height=n,(e=i.getContext("2d")).beginPath(),e.moveTo(0,0),e.lineTo(r,0),e.lineTo(r,n),e.lineTo(0,n),e.closePath(),e.translate(r/2,n/2),e.fillStyle=t.toLive(e),this._applyPatternGradientTransform(e,t),e.fill(),e.createPattern(i,"no-repeat")},handleFiller:function(t,e,i){var r,n;return i.toLive?"percentage"===i.gradientUnits||i.gradientTransform||i.patternTransform?(r=-this.width/2,n=-this.height/2,t.translate(r,n),t[e]=this._applyPatternGradientTransformText(i),{offsetX:r,offsetY:n}):(t[e]=i.toLive(t,this),this._applyPatternGradientTransform(t,i)):(t[e]=i,{offsetX:0,offsetY:0})},_setStrokeStyles:function(t,e){return t.lineWidth=e.strokeWidth,t.lineCap=this.strokeLineCap,t.lineDashOffset=this.strokeDashOffset,t.lineJoin=this.strokeLineJoin,t.miterLimit=this.strokeMiterLimit,this.handleFiller(t,"strokeStyle",e.stroke)},_setFillStyles:function(t,e){return this.handleFiller(t,"fillStyle",e.fill)},_renderChar:function(t,e,i,r,n,s,o){var a,c,h=this._getStyleDeclaration(i,r),i=this.getCompleteStyleDeclaration(i,r),r="fillText"===t&&i.fill,t="strokeText"===t&&i.stroke&&i.strokeWidth;(t||r)&&(e.save(),r&&(a=this._setFillStyles(e,i)),t&&(c=this._setStrokeStyles(e,i)),e.font=this._getFontDeclaration(i),h&&h.textBackgroundColor&&this._removeShadow(e),h&&h.deltaY&&(o+=h.deltaY),r&&e.fillText(n,s-a.offsetX,o-a.offsetY),t&&e.strokeText(n,s-c.offsetX,o-c.offsetY),e.restore())},setSuperscript:function(t,e){return this._setScript(t,e,this.superscript)},setSubscript:function(t,e){return this._setScript(t,e,this.subscript)},_setScript:function(t,e,i){var r=this.get2DCursorLocation(t,!0),n=this.getValueOfPropertyAt(r.lineIndex,r.charIndex,"fontSize"),r=this.getValueOfPropertyAt(r.lineIndex,r.charIndex,"deltaY"),i={fontSize:n*i.size,deltaY:r+n*i.baseline};return this.setSelectionStyles(i,t,e),this},_hasStyleChanged:function(t,e){return t.fill!==e.fill||t.stroke!==e.stroke||t.strokeWidth!==e.strokeWidth||t.fontSize!==e.fontSize||t.fontFamily!==e.fontFamily||t.fontWeight!==e.fontWeight||t.fontStyle!==e.fontStyle||t.deltaY!==e.deltaY},_hasStyleChangedForSvg:function(t,e){return this._hasStyleChanged(t,e)||t.overline!==e.overline||t.underline!==e.underline||t.linethrough!==e.linethrough},_getLineLeftOffset:function(t){var e=this.getLineWidth(t),i=this.width-e,r=this.textAlign,n=this.direction,e=0,t=this.isEndOfWrapping(t);return"justify"===r||"justify-center"===r&&!t||"justify-right"===r&&!t||"justify-left"===r&&!t?0:("center"===r&&(e=i/2),"right"===r&&(e=i),"justify-center"===r&&(e=i/2),"justify-right"===r&&(e=i),"rtl"===n&&(e-=i),e)},_clearCache:function(){this.__lineWidths=[],this.__lineHeights=[],this.__charBounds=[]},_shouldClearDimensionCache:function(){var t=this._forceClearCache;return(t=t||this.hasStateChanged("_dimensionAffectingProps"))&&(this.dirty=!0,this._forceClearCache=!1),t},getLineWidth:function(t){if(this.__lineWidths[t])return this.__lineWidths[t];var e=""===this._textLines[t]?0:this.measureLine(t).width;return this.__lineWidths[t]=e},_getWidthOfCharSpacing:function(){return 0!==this.charSpacing?this.fontSize*this.charSpacing/1e3:0},getValueOfPropertyAt:function(t,e,i){e=this._getStyleDeclaration(t,e);return(e&&void 0!==e[i]?e:this)[i]},_renderTextDecoration:function(t,e){if(this[e]||this.styleHas(e)){for(var i,r=this._getLeftOffset(),n=this._getTopOffset(),s=this.path,o=this._getWidthOfCharSpacing(),a=this.offsets[e],c=0,h=this._textLines.length;c<h;c++)if(i=this.getHeightOfLine(c),this[e]||this.styleHas(e,c)){for(var l=this._textLines[c],u=i/this.lineHeight,f=this._getLineLeftOffset(c),d=0,g=0,p=this.getValueOfPropertyAt(c,0,e),m=this.getValueOfPropertyAt(c,0,"fill"),v=n+u*(1-this._fontSizeFraction),b=this.getHeightOfChar(c,0),y=this.getValueOfPropertyAt(c,0,"deltaY"),_=0,x=l.length;_<x;_++){var C=this.__charBounds[c][_],S=this.getValueOfPropertyAt(c,_,e),T=this.getValueOfPropertyAt(c,_,"fill"),w=this.getHeightOfChar(c,_),O=this.getValueOfPropertyAt(c,_,"deltaY");s&&S&&T?(t.save(),t.fillStyle=m,t.translate(C.renderLeft,C.renderTop),t.rotate(C.angle),t.fillRect(-C.kernedWidth/2,a*w+O,C.kernedWidth,this.fontSize/15),t.restore()):(S!==p||T!==m||w!==b||O!==y)&&0<g?(k=r+f+d,"rtl"===this.direction&&(k=this.width-k-g),p&&m&&(t.fillStyle=m,t.fillRect(k,v+a*b+y,g,this.fontSize/15)),d=C.left,g=C.width,p=S,m=T,b=w,y=O):g+=C.kernedWidth}var k=r+f+d;"rtl"===this.direction&&(k=this.width-k-g),t.fillStyle=T,S&&T&&t.fillRect(k,v+a*b+y,g-o,this.fontSize/15),n+=i}else n+=i;this._removeShadow(t)}},_getFontDeclaration:function(t,e){var i=t||this,r=this.fontFamily,t=-1<d.Text.genericFonts.indexOf(r.toLowerCase()),t=void 0===r||-1<r.indexOf("'")||-1<r.indexOf(",")||-1<r.indexOf('"')||t?i.fontFamily:'"'+i.fontFamily+'"';return[d.isLikelyNode?i.fontWeight:i.fontStyle,d.isLikelyNode?i.fontStyle:i.fontWeight,e?this.CACHE_FONT_SIZE+"px":i.fontSize+"px",t].join(" ")},render:function(t){this.visible&&(this.canvas&&this.canvas.skipOffscreen&&!this.group&&!this.isOnScreen()||(this._shouldClearDimensionCache()&&this.initDimensions(),this.callSuper("render",t)))},_splitTextIntoLines:function(t){for(var e=t.split(this._reNewline),i=new Array(e.length),r=["\n"],n=[],s=0;s<e.length;s++)i[s]=d.util.string.graphemeSplit(e[s]),n=n.concat(i[s],r);return n.pop(),{_unwrappedLines:i,lines:e,graphemeText:n,graphemeLines:i}},toObject:function(t){t=e.concat(t),t=this.callSuper("toObject",t);return t.styles=o(this.styles,!0),t.path&&(t.path=this.path.toObject()),t},set:function(t,e){this.callSuper("set",t,e);var i=!1,r=!1;if("object"==typeof t)for(var n in t)"path"===n&&this.setPathInfo(),i=i||-1!==this._dimensionAffectingProps.indexOf(n),r=r||"path"===n;else i=-1!==this._dimensionAffectingProps.indexOf(t),r="path"===t;return r&&this.setPathInfo(),i&&(this.initDimensions(),this.setCoords()),this},complexity:function(){return 1}}),d.Text.ATTRIBUTE_NAMES=d.SHARED_ATTRIBUTES.concat("x y dx dy font-family font-style font-weight font-size letter-spacing text-decoration text-anchor".split(" ")),d.Text.DEFAULT_SVG_FONT_SIZE=16,d.Text.fromElement=function(t,e,i){if(!t)return e(null);var r=d.parseAttributes(t,d.Text.ATTRIBUTE_NAMES),n=r.textAnchor||"left";(i=d.util.object.extend(i?o(i):{},r)).top=i.top||0,i.left=i.left||0,r.textDecoration&&(-1!==(s=r.textDecoration).indexOf("underline")&&(i.underline=!0),-1!==s.indexOf("overline")&&(i.overline=!0),-1!==s.indexOf("line-through")&&(i.linethrough=!0),delete i.textDecoration),"dx"in r&&(i.left+=r.dx),"dy"in r&&(i.top+=r.dy),"fontSize"in i||(i.fontSize=d.Text.DEFAULT_SVG_FONT_SIZE);var s="";"textContent"in t?s=t.textContent:"firstChild"in t&&null!==t.firstChild&&"data"in t.firstChild&&null!==t.firstChild.data&&(s=t.firstChild.data);s=s.replace(/^\s+|\s+$|\n+/g,"").replace(/\s+/g," "),r=i.strokeWidth;i.strokeWidth=0;t=new d.Text(s,i),s=t.getScaledHeight()/t.height,i=((t.height+t.strokeWidth)*t.lineHeight-t.height)*s,s=t.getScaledHeight()+i,i=0;"center"===n&&(i=t.getScaledWidth()/2),"right"===n&&(i=t.getScaledWidth()),t.set({left:t.left-i,top:t.top-(s-t.fontSize*(.07+t._fontSizeFraction))/t.lineHeight,strokeWidth:void 0!==r?r:1}),e(t)},d.Text.fromObject=function(t,i){var e=o(t),r=t.path;return delete e.path,d.Object._fromObject("Text",e,function(e){r?d.Object._fromObject("Path",r,function(t){e.set("path",t),i(e)},"path"):i(e)},"text")},d.Text.genericFonts=["sans-serif","serif","cursive","fantasy","monospace"],d.util.createAccessors&&d.util.createAccessors(d.Text))}("undefined"!=typeof exports?exports:this),fabric.util.object.extend(fabric.Text.prototype,{isEmptyStyles:function(t){if(!this.styles)return!0;if(void 0!==t&&!this.styles[t])return!0;var e,i=void 0===t?this.styles:{line:this.styles[t]};for(e in i)for(var r in i[e])for(var n in i[e][r])return!1;return!0},styleHas:function(t,e){if(!this.styles||!t||""===t)return!1;if(void 0!==e&&!this.styles[e])return!1;var i,r=void 0===e?this.styles:{0:this.styles[e]};for(i in r)for(var n in r[i])if(void 0!==r[i][n][t])return!0;return!1},cleanStyle:function(t){if(!this.styles||!t||""===t)return!1;var e,i,r,n,s=this.styles,o=0,a=!0,c=0;for(r in s){for(var h in e=0,s[r])o++,(n=s[r][h]).hasOwnProperty(t)?(i?n[t]!==i&&(a=!1):i=n[t],n[t]===this[t]&&delete n[t]):a=!1,0!==Object.keys(n).length?e++:delete s[r][h];0===e&&delete s[r]}for(var l=0;l<this._textLines.length;l++)c+=this._textLines[l].length;a&&o===c&&(this[t]=i,this.removeStyle(t))},removeStyle:function(t){if(this.styles&&t&&""!==t){var e,i,r,n=this.styles;for(i in n){for(r in e=n[i])delete e[r][t],0===Object.keys(e[r]).length&&delete e[r];0===Object.keys(e).length&&delete n[i]}}},_extendStyles:function(t,e){t=this.get2DCursorLocation(t);this._getLineStyle(t.lineIndex)||this._setLineStyle(t.lineIndex),this._getStyleDeclaration(t.lineIndex,t.charIndex)||this._setStyleDeclaration(t.lineIndex,t.charIndex,{}),fabric.util.object.extend(this._getStyleDeclaration(t.lineIndex,t.charIndex),e)},get2DCursorLocation:function(t,e){void 0===t&&(t=this.selectionStart);for(var i=e?this._unwrappedTextLines:this._textLines,r=i.length,n=0;n<r;n++){if(t<=i[n].length)return{lineIndex:n,charIndex:t};t-=i[n].length+this.missingNewlineOffset(n)}return{lineIndex:n-1,charIndex:i[n-1].length<t?i[n-1].length:t}},getSelectionStyles:function(t,e,i){void 0===t&&(t=this.selectionStart||0),void 0===e&&(e=this.selectionEnd||t);for(var r=[],n=t;n<e;n++)r.push(this.getStyleAtPosition(n,i));return r},getStyleAtPosition:function(t,e){t=this.get2DCursorLocation(t);return(e?this.getCompleteStyleDeclaration(t.lineIndex,t.charIndex):this._getStyleDeclaration(t.lineIndex,t.charIndex))||{}},setSelectionStyles:function(t,e,i){void 0===e&&(e=this.selectionStart||0),void 0===i&&(i=this.selectionEnd||e);for(var r=e;r<i;r++)this._extendStyles(r,t);return this._forceClearCache=!0,this},_getStyleDeclaration:function(t,e){t=this.styles&&this.styles[t];return t?t[e]:null},getCompleteStyleDeclaration:function(t,e){for(var i,r=this._getStyleDeclaration(t,e)||{},n={},s=0;s<this._styleProperties.length;s++)n[i=this._styleProperties[s]]=(void 0===r[i]?this:r)[i];return n},_setStyleDeclaration:function(t,e,i){this.styles[t][e]=i},_deleteStyleDeclaration:function(t,e){delete this.styles[t][e]},_getLineStyle:function(t){return!!this.styles[t]},_setLineStyle:function(t){this.styles[t]={}},_deleteLineStyle:function(t){delete this.styles[t]}}),function(){function n(t){t.textDecoration&&(-1<t.textDecoration.indexOf("underline")&&(t.underline=!0),-1<t.textDecoration.indexOf("line-through")&&(t.linethrough=!0),-1<t.textDecoration.indexOf("overline")&&(t.overline=!0),delete t.textDecoration)}fabric.IText=fabric.util.createClass(fabric.Text,fabric.Observable,{type:"i-text",selectionStart:0,selectionEnd:0,selectionColor:"rgba(17,119,255,0.3)",isEditing:!1,editable:!0,editingBorderColor:"rgba(102,153,255,0.25)",cursorWidth:2,cursorColor:"",cursorDelay:1e3,cursorDuration:600,caching:!0,hiddenTextareaContainer:null,_reSpace:/\s|\n/,_currentCursorOpacity:0,_selectionDirection:null,_abortCursorAnimation:!1,__widthOfSpace:[],inCompositionMode:!1,initialize:function(t,e){this.callSuper("initialize",t,e),this.initBehavior()},setSelectionStart:function(t){t=Math.max(t,0),this._updateAndFire("selectionStart",t)},setSelectionEnd:function(t){t=Math.min(t,this.text.length),this._updateAndFire("selectionEnd",t)},_updateAndFire:function(t,e){this[t]!==e&&(this._fireSelectionChanged(),this[t]=e),this._updateTextarea()},_fireSelectionChanged:function(){this.fire("selection:changed"),this.canvas&&this.canvas.fire("text:selection:changed",{target:this})},initDimensions:function(){this.isEditing&&this.initDelayedCursor(),this.clearContextTop(),this.callSuper("initDimensions")},render:function(t){this.clearContextTop(),this.callSuper("render",t),this.cursorOffsetCache={},this.renderCursorOrSelection()},_render:function(t){this.callSuper("_render",t)},clearContextTop:function(t){var e,i;this.isEditing&&this.canvas&&this.canvas.contextTop&&(e=this.canvas.contextTop,i=this.canvas.viewportTransform,e.save(),e.transform(i[0],i[1],i[2],i[3],i[4],i[5]),this.transform(e),this._clearTextArea(e),t||e.restore())},renderCursorOrSelection:function(){var t,e;this.isEditing&&this.canvas&&this.canvas.contextTop&&(t=this._getCursorBoundaries(),e=this.canvas.contextTop,this.clearContextTop(!0),this.selectionStart===this.selectionEnd?this.renderCursor(t,e):this.renderSelection(t,e),e.restore())},_clearTextArea:function(t){var e=this.width+4,i=this.height+4;t.clearRect(-e/2,-i/2,e,i)},_getCursorBoundaries:function(t){void 0===t&&(t=this.selectionStart);var e=this._getLeftOffset(),i=this._getTopOffset(),t=this._getCursorBoundariesOffsets(t);return{left:e,top:i,leftOffset:t.left,topOffset:t.top}},_getCursorBoundariesOffsets:function(t){if(this.cursorOffsetCache&&"top"in this.cursorOffsetCache)return this.cursorOffsetCache;for(var e=0,i=0,r=this.get2DCursorLocation(t),n=r.charIndex,s=r.lineIndex,o=0;o<s;o++)e+=this.getHeightOfLine(o);t=this._getLineLeftOffset(s),r=this.__charBounds[s][n];return r&&(i=r.left),0!==this.charSpacing&&n===this._textLines[s].length&&(i-=this._getWidthOfCharSpacing()),i={top:e,left:t+(0<i?i:0)},"rtl"===this.direction&&(i.left*=-1),this.cursorOffsetCache=i,this.cursorOffsetCache},renderCursor:function(t,e){var i=this.get2DCursorLocation(),r=i.lineIndex,n=0<i.charIndex?i.charIndex-1:0,s=this.getValueOfPropertyAt(r,n,"fontSize"),o=this.scaleX*this.canvas.getZoom(),a=this.cursorWidth/o,i=t.topOffset,o=this.getValueOfPropertyAt(r,n,"deltaY");i+=(1-this._fontSizeFraction)*this.getHeightOfLine(r)/this.lineHeight-s*(1-this._fontSizeFraction),this.inCompositionMode&&this.renderSelection(t,e),e.fillStyle=this.cursorColor||this.getValueOfPropertyAt(r,n,"fill"),e.globalAlpha=this.__isMousedown?1:this._currentCursorOpacity,e.fillRect(t.left+t.leftOffset-a/2,i+t.top+o,a,s)},renderSelection:function(t,e){for(var i=(this.inCompositionMode?this.hiddenTextarea:this).selectionStart,r=(this.inCompositionMode?this.hiddenTextarea:this).selectionEnd,n=-1!==this.textAlign.indexOf("justify"),i=this.get2DCursorLocation(i),r=this.get2DCursorLocation(r),s=i.lineIndex,o=r.lineIndex,a=i.charIndex<0?0:i.charIndex,c=r.charIndex<0?0:r.charIndex,h=s;h<=o;h++){var l,u=this._getLineLeftOffset(h)||0,f=this.getHeightOfLine(h),d=0,g=0;h===s&&(d=this.__charBounds[s][a].left),s<=h&&h<o?g=n&&!this.isEndOfWrapping(h)?this.width:this.getLineWidth(h)||5:h===o&&(g=0===c?this.__charBounds[o][c].left:(p=this._getWidthOfCharSpacing(),this.__charBounds[o][c-1].left+this.__charBounds[o][c-1].width-p)),l=f,(this.lineHeight<1||h===o&&1<this.lineHeight)&&(f/=this.lineHeight);var p=t.left+u+d,u=g-d,g=f,d=0;this.inCompositionMode?(e.fillStyle=this.compositionColor||"black",g=1,d=f):e.fillStyle=this.selectionColor,"rtl"===this.direction&&(p=this.width-p-u),e.fillRect(p,t.top+t.topOffset+d,u,g),t.topOffset+=l}},getCurrentCharFontSize:function(){var t=this._getCurrentCharIndex();return this.getValueOfPropertyAt(t.l,t.c,"fontSize")},getCurrentCharColor:function(){var t=this._getCurrentCharIndex();return this.getValueOfPropertyAt(t.l,t.c,"fill")},_getCurrentCharIndex:function(){var t=this.get2DCursorLocation(this.selectionStart,!0),e=0<t.charIndex?t.charIndex-1:0;return{l:t.lineIndex,c:e}}}),fabric.IText.fromObject=function(t,e){if(n(t),t.styles)for(var i in t.styles)for(var r in t.styles[i])n(t.styles[i][r]);fabric.Object._fromObject("IText",t,e,"text")}}(),function(){var u=fabric.util.object.clone;fabric.util.object.extend(fabric.IText.prototype,{initBehavior:function(){this.initAddedHandler(),this.initRemovedHandler(),this.initCursorSelectionHandlers(),this.initDoubleClickSimulation(),this.mouseMoveHandler=this.mouseMoveHandler.bind(this)},onDeselect:function(){this.isEditing&&this.exitEditing(),this.selected=!1},initAddedHandler:function(){var e=this;this.on("added",function(){var t=e.canvas;t&&(t._hasITextHandlers||(t._hasITextHandlers=!0,e._initCanvasHandlers(t)),t._iTextInstances=t._iTextInstances||[],t._iTextInstances.push(e))})},initRemovedHandler:function(){var e=this;this.on("removed",function(){var t=e.canvas;t&&(t._iTextInstances=t._iTextInstances||[],fabric.util.removeFromArray(t._iTextInstances,e),0===t._iTextInstances.length&&(t._hasITextHandlers=!1,e._removeCanvasHandlers(t)))})},_initCanvasHandlers:function(t){t._mouseUpITextHandler=function(){t._iTextInstances&&t._iTextInstances.forEach(function(t){t.__isMousedown=!1})},t.on("mouse:up",t._mouseUpITextHandler)},_removeCanvasHandlers:function(t){t.off("mouse:up",t._mouseUpITextHandler)},_tick:function(){this._currentTickState=this._animateCursor(this,1,this.cursorDuration,"_onTickComplete")},_animateCursor:function(t,e,i,r){var n={isAborted:!1,abort:function(){this.isAborted=!0}};return t.animate("_currentCursorOpacity",e,{duration:i,onComplete:function(){n.isAborted||t[r]()},onChange:function(){t.canvas&&t.selectionStart===t.selectionEnd&&t.renderCursorOrSelection()},abort:function(){return n.isAborted}}),n},_onTickComplete:function(){var t=this;this._cursorTimeout1&&clearTimeout(this._cursorTimeout1),this._cursorTimeout1=setTimeout(function(){t._currentTickCompleteState=t._animateCursor(t,0,this.cursorDuration/2,"_tick")},100)},initDelayedCursor:function(t){var e=this,t=t?0:this.cursorDelay;this.abortCursorAnimation(),this._currentCursorOpacity=1,this._cursorTimeout2=setTimeout(function(){e._tick()},t)},abortCursorAnimation:function(){var t=this._currentTickState||this._currentTickCompleteState,e=this.canvas;this._currentTickState&&this._currentTickState.abort(),this._currentTickCompleteState&&this._currentTickCompleteState.abort(),clearTimeout(this._cursorTimeout1),clearTimeout(this._cursorTimeout2),this._currentCursorOpacity=0,t&&e&&e.clearContext(e.contextTop||e.contextContainer)},selectAll:function(){return this.selectionStart=0,this.selectionEnd=this._text.length,this._fireSelectionChanged(),this._updateTextarea(),this},getSelectedText:function(){return this._text.slice(this.selectionStart,this.selectionEnd).join("")},findWordBoundaryLeft:function(t){var e=0,i=t-1;if(this._reSpace.test(this._text[i]))for(;this._reSpace.test(this._text[i]);)e++,i--;for(;/\S/.test(this._text[i])&&-1<i;)e++,i--;return t-e},findWordBoundaryRight:function(t){var e=0,i=t;if(this._reSpace.test(this._text[i]))for(;this._reSpace.test(this._text[i]);)e++,i++;for(;/\S/.test(this._text[i])&&i<this._text.length;)e++,i++;return t+e},findLineBoundaryLeft:function(t){for(var e=0,i=t-1;!/\n/.test(this._text[i])&&-1<i;)e++,i--;return t-e},findLineBoundaryRight:function(t){for(var e=0,i=t;!/\n/.test(this._text[i])&&i<this._text.length;)e++,i++;return t+e},searchWordBoundary:function(t,e){for(var i=this._text,r=this._reSpace.test(i[t])?t-1:t,n=i[r],s=fabric.reNonWord;!s.test(n)&&0<r&&r<i.length;)n=i[r+=e];return s.test(n)&&(r+=1===e?0:1),r},selectWord:function(t){t=t||this.selectionStart;var e=this.searchWordBoundary(t,-1),t=this.searchWordBoundary(t,1);this.selectionStart=e,this.selectionEnd=t,this._fireSelectionChanged(),this._updateTextarea(),this.renderCursorOrSelection()},selectLine:function(t){t=t||this.selectionStart;var e=this.findLineBoundaryLeft(t),t=this.findLineBoundaryRight(t);return this.selectionStart=e,this.selectionEnd=t,this._fireSelectionChanged(),this._updateTextarea(),this},enterEditing:function(t){if(!this.isEditing&&this.editable)return this.canvas&&(this.canvas.calcOffset(),this.exitEditingOnOthers(this.canvas)),this.isEditing=!0,this.initHiddenTextarea(t),this.hiddenTextarea.focus(),this.hiddenTextarea.value=this.text,this._updateTextarea(),this._saveEditingProps(),this._setEditingProps(),this._textBeforeEdit=this.text,this._tick(),this.fire("editing:entered"),this._fireSelectionChanged(),this.canvas&&(this.canvas.fire("text:editing:entered",{target:this}),this.initMouseMoveHandler(),this.canvas.requestRenderAll()),this},exitEditingOnOthers:function(t){t._iTextInstances&&t._iTextInstances.forEach(function(t){t.selected=!1,t.isEditing&&t.exitEditing()})},initMouseMoveHandler:function(){this.canvas.on("mouse:move",this.mouseMoveHandler)},mouseMoveHandler:function(t){var e,i;this.__isMousedown&&this.isEditing&&(e=this.getSelectionStartFromPointer(t.e),i=this.selectionStart,t=this.selectionEnd,(e===this.__selectionStartOnMouseDown&&i!==t||i!==e&&t!==e)&&(e>this.__selectionStartOnMouseDown?(this.selectionStart=this.__selectionStartOnMouseDown,this.selectionEnd=e):(this.selectionStart=e,this.selectionEnd=this.__selectionStartOnMouseDown),this.selectionStart===i&&this.selectionEnd===t||(this.restartCursorIfNeeded(),this._fireSelectionChanged(),this._updateTextarea(),this.renderCursorOrSelection())))},_setEditingProps:function(){this.hoverCursor="text",this.canvas&&(this.canvas.defaultCursor=this.canvas.moveCursor="text"),this.borderColor=this.editingBorderColor,this.hasControls=this.selectable=!1,this.lockMovementX=this.lockMovementY=!0},fromStringToGraphemeSelection:function(t,e,i){var r=i.slice(0,t),r=fabric.util.string.graphemeSplit(r).length;if(t===e)return{selectionStart:r,selectionEnd:r};e=i.slice(t,e);return{selectionStart:r,selectionEnd:r+fabric.util.string.graphemeSplit(e).length}},fromGraphemeToStringSelection:function(t,e,i){var r=i.slice(0,t).join("").length;return t===e?{selectionStart:r,selectionEnd:r}:{selectionStart:r,selectionEnd:r+i.slice(t,e).join("").length}},_updateTextarea:function(){var t;this.cursorOffsetCache={},this.hiddenTextarea&&(this.inCompositionMode||(t=this.fromGraphemeToStringSelection(this.selectionStart,this.selectionEnd,this._text),this.hiddenTextarea.selectionStart=t.selectionStart,this.hiddenTextarea.selectionEnd=t.selectionEnd),this.updateTextareaPosition())},updateFromTextArea:function(){var t;this.hiddenTextarea&&(this.cursorOffsetCache={},this.text=this.hiddenTextarea.value,this._shouldClearDimensionCache()&&(this.initDimensions(),this.setCoords()),t=this.fromStringToGraphemeSelection(this.hiddenTextarea.selectionStart,this.hiddenTextarea.selectionEnd,this.hiddenTextarea.value),this.selectionEnd=this.selectionStart=t.selectionEnd,this.inCompositionMode||(this.selectionStart=t.selectionStart),this.updateTextareaPosition())},updateTextareaPosition:function(){var t;this.selectionStart===this.selectionEnd&&(t=this._calcTextareaPosition(),this.hiddenTextarea.style.left=t.left,this.hiddenTextarea.style.top=t.top)},_calcTextareaPosition:function(){if(!this.canvas)return{x:1,y:1};var t=this.inCompositionMode?this.compositionStart:this.selectionStart,e=this._getCursorBoundaries(t),i=this.get2DCursorLocation(t),r=i.lineIndex,n=i.charIndex,s=this.getValueOfPropertyAt(r,n,"fontSize")*this.lineHeight,o=e.leftOffset,a=this.calcTransformMatrix(),t={x:e.left+o,y:e.top+e.topOffset+s},i=this.canvas.getRetinaScaling(),r=this.canvas.upperCanvasEl,n=r.width/i,o=r.height/i,e=n-s,i=o-s,n=r.clientWidth/n,o=r.clientHeight/o,t=fabric.util.transformPoint(t,a);return(t=fabric.util.transformPoint(t,this.canvas.viewportTransform)).x*=n,t.y*=o,t.x<0&&(t.x=0),t.x>e&&(t.x=e),t.y<0&&(t.y=0),t.y>i&&(t.y=i),t.x+=this.canvas._offset.left,t.y+=this.canvas._offset.top,{left:t.x+"px",top:t.y+"px",fontSize:s+"px",charHeight:s}},_saveEditingProps:function(){this._savedProps={hasControls:this.hasControls,borderColor:this.borderColor,lockMovementX:this.lockMovementX,lockMovementY:this.lockMovementY,hoverCursor:this.hoverCursor,selectable:this.selectable,defaultCursor:this.canvas&&this.canvas.defaultCursor,moveCursor:this.canvas&&this.canvas.moveCursor}},_restoreEditingProps:function(){this._savedProps&&(this.hoverCursor=this._savedProps.hoverCursor,this.hasControls=this._savedProps.hasControls,this.borderColor=this._savedProps.borderColor,this.selectable=this._savedProps.selectable,this.lockMovementX=this._savedProps.lockMovementX,this.lockMovementY=this._savedProps.lockMovementY,this.canvas&&(this.canvas.defaultCursor=this._savedProps.defaultCursor,this.canvas.moveCursor=this._savedProps.moveCursor))},exitEditing:function(){var t=this._textBeforeEdit!==this.text,e=this.hiddenTextarea;return this.selected=!1,this.isEditing=!1,this.selectionEnd=this.selectionStart,e&&(e.blur&&e.blur(),e.parentNode&&e.parentNode.removeChild(e)),this.hiddenTextarea=null,this.abortCursorAnimation(),this._restoreEditingProps(),this._currentCursorOpacity=0,this._shouldClearDimensionCache()&&(this.initDimensions(),this.setCoords()),this.fire("editing:exited"),t&&this.fire("modified"),this.canvas&&(this.canvas.off("mouse:move",this.mouseMoveHandler),this.canvas.fire("text:editing:exited",{target:this}),t&&this.canvas.fire("object:modified",{target:this})),this},_removeExtraneousStyles:function(){for(var t in this.styles)this._textLines[t]||delete this.styles[t]},removeStyleFromTo:function(t,e){var t=this.get2DCursorLocation(t,!0),e=this.get2DCursorLocation(e,!0),i=t.lineIndex,r=t.charIndex,n=e.lineIndex,s=e.charIndex;if(i!==n){if(this.styles[i])for(l=r;l<this._unwrappedTextLines[i].length;l++)delete this.styles[i][l];if(this.styles[n])for(l=s;l<this._unwrappedTextLines[n].length;l++)(c=this.styles[n][l])&&(this.styles[i]||(this.styles[i]={}),this.styles[i][r+l-s]=c);for(l=i+1;l<=n;l++)delete this.styles[l];this.shiftLineStyles(n,i-n)}else if(this.styles[i]){for(var o,a,c=this.styles[i],h=s-r,l=r;l<s;l++)delete c[l];for(a in this.styles[i])s<=(o=parseInt(a,10))&&(c[o-h]=c[a],delete c[a])}},shiftLineStyles:function(t,e){var i,r=u(this.styles);for(i in this.styles){var n=parseInt(i,10);t<n&&(this.styles[n+e]=r[n],r[n-e]||delete this.styles[n])}},restartCursorIfNeeded:function(){this._currentTickState&&!this._currentTickState.isAborted&&this._currentTickCompleteState&&!this._currentTickCompleteState.isAborted||this.initDelayedCursor()},insertNewlineStyleObject:function(t,e,i,r){var n,s,o={},a=!1,c=this._unwrappedTextLines[t].length===e;for(s in this.shiftLineStyles(t,i=i||1),this.styles[t]&&(n=this.styles[t][0===e?e:e-1]),this.styles[t]){var h=parseInt(s,10);e<=h&&(a=!0,o[h-e]=this.styles[t][s],c&&0===e||delete this.styles[t][s])}var l=!1;for(a&&!c&&(this.styles[t+i]=o,l=!0),l&&i--;0<i;)r&&r[i-1]?this.styles[t+i]={0:u(r[i-1])}:n?this.styles[t+i]={0:u(n)}:delete this.styles[t+i],i--;this._forceClearCache=!0},insertCharStyleObject:function(t,e,i,r){this.styles||(this.styles={});var n,s=this.styles[t],o=s?u(s):{};for(n in i=i||1,o){var a=parseInt(n,10);e<=a&&(s[a+i]=o[a],o[a-i]||delete s[a])}if(this._forceClearCache=!0,r)for(;i--;)Object.keys(r[i]).length&&(this.styles[t]||(this.styles[t]={}),this.styles[t][e+i]=u(r[i]));else if(s)for(var c=s[e?e-1:1];c&&i--;)this.styles[t][e+i]=u(c)},insertNewStyleBlock:function(t,e,i){for(var r=this.get2DCursorLocation(e,!0),n=[0],s=0,o=0;o<t.length;o++)"\n"===t[o]?n[++s]=0:n[s]++;0<n[0]&&(this.insertCharStyleObject(r.lineIndex,r.charIndex,n[0],i),i=i&&i.slice(n[0]+1)),s&&this.insertNewlineStyleObject(r.lineIndex,r.charIndex+n[0],s);for(o=1;o<s;o++)0<n[o]?this.insertCharStyleObject(r.lineIndex+o,0,n[o],i):i&&(this.styles[r.lineIndex+o][0]=i[0]),i=i&&i.slice(n[o]+1);0<n[o]&&this.insertCharStyleObject(r.lineIndex+o,0,n[o],i)},setSelectionStartEndWithShift:function(t,e,i){i<=t?(e===t?this._selectionDirection="left":"right"===this._selectionDirection&&(this._selectionDirection="left",this.selectionEnd=t),this.selectionStart=i):t<i&&i<e?"right"===this._selectionDirection?this.selectionEnd=i:this.selectionStart=i:(e===t?this._selectionDirection="right":"left"===this._selectionDirection&&(this._selectionDirection="right",this.selectionStart=e),this.selectionEnd=i)},setSelectionInBoundaries:function(){var t=this.text.length;this.selectionStart>t?this.selectionStart=t:this.selectionStart<0&&(this.selectionStart=0),this.selectionEnd>t?this.selectionEnd=t:this.selectionEnd<0&&(this.selectionEnd=0)}})}(),fabric.util.object.extend(fabric.IText.prototype,{initDoubleClickSimulation:function(){this.__lastClickTime=+new Date,this.__lastLastClickTime=+new Date,this.__lastPointer={},this.on("mousedown",this.onMouseDown)},onMouseDown:function(t){var e;this.canvas&&(this.__newClickTime=+new Date,e=t.pointer,this.isTripleClick(e)&&(this.fire("tripleclick",t),this._stopEvent(t.e)),this.__lastLastClickTime=this.__lastClickTime,this.__lastClickTime=this.__newClickTime,this.__lastPointer=e,this.__lastIsEditing=this.isEditing,this.__lastSelected=this.selected)},isTripleClick:function(t){return this.__newClickTime-this.__lastClickTime<500&&this.__lastClickTime-this.__lastLastClickTime<500&&this.__lastPointer.x===t.x&&this.__lastPointer.y===t.y},_stopEvent:function(t){t.preventDefault&&t.preventDefault(),t.stopPropagation&&t.stopPropagation()},initCursorSelectionHandlers:function(){this.initMousedownHandler(),this.initMouseupHandler(),this.initClicks()},doubleClickHandler:function(t){this.isEditing&&this.selectWord(this.getSelectionStartFromPointer(t.e))},tripleClickHandler:function(t){this.isEditing&&this.selectLine(this.getSelectionStartFromPointer(t.e))},initClicks:function(){this.on("mousedblclick",this.doubleClickHandler),this.on("tripleclick",this.tripleClickHandler)},_mouseDownHandler:function(t){!this.canvas||!this.editable||t.e.button&&1!==t.e.button||(this.__isMousedown=!0,this.selected&&(this.inCompositionMode=!1,this.setCursorByClick(t.e)),this.isEditing&&(this.__selectionStartOnMouseDown=this.selectionStart,this.selectionStart===this.selectionEnd&&this.abortCursorAnimation(),this.renderCursorOrSelection()))},_mouseDownHandlerBefore:function(t){!this.canvas||!this.editable||t.e.button&&1!==t.e.button||(this.selected=this===this.canvas._activeObject)},initMousedownHandler:function(){this.on("mousedown",this._mouseDownHandler),this.on("mousedown:before",this._mouseDownHandlerBefore)},initMouseupHandler:function(){this.on("mouseup",this.mouseUpHandler)},mouseUpHandler:function(t){if(this.__isMousedown=!1,!(!this.editable||this.group||t.transform&&t.transform.actionPerformed||t.e.button&&1!==t.e.button)){if(this.canvas){var e=this.canvas._activeObject;if(e&&e!==this)return}this.__lastSelected&&!this.__corner?(this.selected=!1,this.__lastSelected=!1,this.enterEditing(t.e),this.selectionStart===this.selectionEnd?this.initDelayedCursor(!0):this.renderCursorOrSelection()):this.selected=!0}},setCursorByClick:function(t){var e=this.getSelectionStartFromPointer(t),i=this.selectionStart,r=this.selectionEnd;t.shiftKey?this.setSelectionStartEndWithShift(i,r,e):(this.selectionStart=e,this.selectionEnd=e),this.isEditing&&(this._fireSelectionChanged(),this._updateTextarea())},getSelectionStartFromPointer:function(t){for(var e=this.getLocalPointer(t),i=0,r=0,n=0,s=0,o=0,a=0,c=this._textLines.length;a<c&&n<=e.y;a++)n+=this.getHeightOfLine(a)*this.scaleY,0<(o=a)&&(s+=this._textLines[a-1].length+this.missingNewlineOffset(a-1));r=this._getLineLeftOffset(o)*this.scaleX,t=this._textLines[o],"rtl"===this.direction&&(e.x=this.width*this.scaleX-e.x+r);for(var h=0,l=t.length;h<l&&(i=r,(r+=this.__charBounds[o][h].kernedWidth*this.scaleX)<=e.x);h++)s++;return this._getNewSelectionStartFromOffset(e,i,r,s,l)},_getNewSelectionStartFromOffset:function(t,e,i,r,n){e=t.x-e,t=i-t.x,t=r+(e<t||t<0?0:1);return t=(t=this.flipX?n-t:t)>this._text.length?this._text.length:t}}),fabric.util.object.extend(fabric.IText.prototype,{initHiddenTextarea:function(){this.hiddenTextarea=fabric.document.createElement("textarea"),this.hiddenTextarea.setAttribute("autocapitalize","off"),this.hiddenTextarea.setAttribute("autocorrect","off"),this.hiddenTextarea.setAttribute("autocomplete","off"),this.hiddenTextarea.setAttribute("spellcheck","false"),this.hiddenTextarea.setAttribute("data-fabric-hiddentextarea",""),this.hiddenTextarea.setAttribute("wrap","off");var t=this._calcTextareaPosition();this.hiddenTextarea.style.cssText="position: absolute; top: "+t.top+"; left: "+t.left+"; z-index: -999; opacity: 0; width: 1px; height: 1px; font-size: 1px; paddingｰtop: "+t.fontSize+";",(this.hiddenTextareaContainer||fabric.document.body).appendChild(this.hiddenTextarea),fabric.util.addListener(this.hiddenTextarea,"keydown",this.onKeyDown.bind(this)),fabric.util.addListener(this.hiddenTextarea,"keyup",this.onKeyUp.bind(this)),fabric.util.addListener(this.hiddenTextarea,"input",this.onInput.bind(this)),fabric.util.addListener(this.hiddenTextarea,"copy",this.copy.bind(this)),fabric.util.addListener(this.hiddenTextarea,"cut",this.copy.bind(this)),fabric.util.addListener(this.hiddenTextarea,"paste",this.paste.bind(this)),fabric.util.addListener(this.hiddenTextarea,"compositionstart",this.onCompositionStart.bind(this)),fabric.util.addListener(this.hiddenTextarea,"compositionupdate",this.onCompositionUpdate.bind(this)),fabric.util.addListener(this.hiddenTextarea,"compositionend",this.onCompositionEnd.bind(this)),!this._clickHandlerInitialized&&this.canvas&&(fabric.util.addListener(this.canvas.upperCanvasEl,"click",this.onClick.bind(this)),this._clickHandlerInitialized=!0)},keysMap:{9:"exitEditing",27:"exitEditing",33:"moveCursorUp",34:"moveCursorDown",35:"moveCursorRight",36:"moveCursorLeft",37:"moveCursorLeft",38:"moveCursorUp",39:"moveCursorRight",40:"moveCursorDown"},keysMapRtl:{9:"exitEditing",27:"exitEditing",33:"moveCursorUp",34:"moveCursorDown",35:"moveCursorLeft",36:"moveCursorRight",37:"moveCursorRight",38:"moveCursorUp",39:"moveCursorLeft",40:"moveCursorDown"},ctrlKeysMapUp:{67:"copy",88:"cut"},ctrlKeysMapDown:{65:"selectAll"},onClick:function(){this.hiddenTextarea&&this.hiddenTextarea.focus()},onKeyDown:function(t){if(this.isEditing){var e="rtl"===this.direction?this.keysMapRtl:this.keysMap;if(t.keyCode in e)this[e[t.keyCode]](t);else{if(!(t.keyCode in this.ctrlKeysMapDown&&(t.ctrlKey||t.metaKey)))return;this[this.ctrlKeysMapDown[t.keyCode]](t)}t.stopImmediatePropagation(),t.preventDefault(),33<=t.keyCode&&t.keyCode<=40?(this.inCompositionMode=!1,this.clearContextTop(),this.renderCursorOrSelection()):this.canvas&&this.canvas.requestRenderAll()}},onKeyUp:function(t){!this.isEditing||this._copyDone||this.inCompositionMode?this._copyDone=!1:t.keyCode in this.ctrlKeysMapUp&&(t.ctrlKey||t.metaKey)&&(this[this.ctrlKeysMapUp[t.keyCode]](t),t.stopImmediatePropagation(),t.preventDefault(),this.canvas&&this.canvas.requestRenderAll())},onInput:function(t){var e=this.fromPaste;if(this.fromPaste=!1,t&&t.stopPropagation(),this.isEditing){var i,r,n,s=this._splitTextIntoLines(this.hiddenTextarea.value).graphemeText,o=this._text.length,a=s.length,c=a-o,h=this.selectionStart,l=this.selectionEnd,u=h!==l;if(""===this.hiddenTextarea.value)return this.styles={},this.updateFromTextArea(),this.fire("changed"),void(this.canvas&&(this.canvas.fire("text:changed",{target:this}),this.canvas.requestRenderAll()));var f=this.fromStringToGraphemeSelection(this.hiddenTextarea.selectionStart,this.hiddenTextarea.selectionEnd,this.hiddenTextarea.value),t=h>f.selectionStart;u?(n=this._text.slice(h,l),c+=l-h):a<o&&(n=t?this._text.slice(l+c,l):this._text.slice(h,h-c)),f=s.slice(f.selectionEnd-c,f.selectionEnd),n&&n.length&&(f.length&&(i=this.getSelectionStyles(h,h+1,!1),i=f.map(function(){return i[0]})),n=u?(r=h,l):t?(r=l-n.length,l):(r=l)+n.length,this.removeStyleFromTo(r,n)),f.length&&(e&&f.join("")===fabric.copiedText&&!fabric.disableStyleCopyPaste&&(i=fabric.copiedTextStyle),this.insertNewStyleBlock(f,h,i)),this.updateFromTextArea(),this.fire("changed"),this.canvas&&(this.canvas.fire("text:changed",{target:this}),this.canvas.requestRenderAll())}},onCompositionStart:function(){this.inCompositionMode=!0},onCompositionEnd:function(){this.inCompositionMode=!1},onCompositionUpdate:function(t){this.compositionStart=t.target.selectionStart,this.compositionEnd=t.target.selectionEnd,this.updateTextareaPosition()},copy:function(){this.selectionStart!==this.selectionEnd&&(fabric.copiedText=this.getSelectedText(),fabric.disableStyleCopyPaste?fabric.copiedTextStyle=null:fabric.copiedTextStyle=this.getSelectionStyles(this.selectionStart,this.selectionEnd,!0),this._copyDone=!0)},paste:function(){this.fromPaste=!0},_getClipboardData:function(t){return t&&t.clipboardData||fabric.window.clipboardData},_getWidthBeforeCursor:function(t,e){var i=this._getLineLeftOffset(t);return 0<e&&(i+=(e=this.__charBounds[t][e-1]).left+e.width),i},getDownCursorOffset:function(t,e){var i=this._getSelectionForOffset(t,e),r=this.get2DCursorLocation(i),e=r.lineIndex;if(e===this._textLines.length-1||t.metaKey||34===t.keyCode)return this._text.length-i;i=r.charIndex,r=this._getWidthBeforeCursor(e,i),r=this._getIndexOnLine(e+1,r);return this._textLines[e].slice(i).length+r+1+this.missingNewlineOffset(e)},_getSelectionForOffset:function(t,e){return t.shiftKey&&this.selectionStart!==this.selectionEnd&&e?this.selectionEnd:this.selectionStart},getUpCursorOffset:function(t,e){var i=this._getSelectionForOffset(t,e),r=this.get2DCursorLocation(i),e=r.lineIndex;if(0===e||t.metaKey||33===t.keyCode)return-i;t=r.charIndex,i=this._getWidthBeforeCursor(e,t),r=this._getIndexOnLine(e-1,i),i=this._textLines[e].slice(0,t),t=this.missingNewlineOffset(e-1);return-this._textLines[e-1].length+r-i.length+(1-t)},_getIndexOnLine:function(t,e){for(var i=this._textLines[t],r=this._getLineLeftOffset(t),n=0,s=0,o=i.length;s<o;s++)if(e<(r+=h=this.__charBounds[t][s].width)){var a=!0,c=r,h=Math.abs(r-h-e),n=Math.abs(c-e)<h?s:s-1;break}return n=!a?i.length-1:n},moveCursorDown:function(t){this.selectionStart>=this._text.length&&this.selectionEnd>=this._text.length||this._moveCursorUpOrDown("Down",t)},moveCursorUp:function(t){0===this.selectionStart&&0===this.selectionEnd||this._moveCursorUpOrDown("Up",t)},_moveCursorUpOrDown:function(t,e){t=this["get"+t+"CursorOffset"](e,"right"===this._selectionDirection);e.shiftKey?this.moveCursorWithShift(t):this.moveCursorWithoutShift(t),0!==t&&(this.setSelectionInBoundaries(),this.abortCursorAnimation(),this._currentCursorOpacity=1,this.initDelayedCursor(),this._fireSelectionChanged(),this._updateTextarea())},moveCursorWithShift:function(t){var e="left"===this._selectionDirection?this.selectionStart+t:this.selectionEnd+t;return this.setSelectionStartEndWithShift(this.selectionStart,this.selectionEnd,e),0!==t},moveCursorWithoutShift:function(t){return t<0?(this.selectionStart+=t,this.selectionEnd=this.selectionStart):(this.selectionEnd+=t,this.selectionStart=this.selectionEnd),0!==t},moveCursorLeft:function(t){0===this.selectionStart&&0===this.selectionEnd||this._moveCursorLeftOrRight("Left",t)},_move:function(t,e,i){var r;if(t.altKey)r=this["findWordBoundary"+i](this[e]);else{if(!t.metaKey&&35!==t.keyCode&&36!==t.keyCode)return this[e]+="Left"===i?-1:1,!0;r=this["findLineBoundary"+i](this[e])}if(this[e]!==r)return this[e]=r,!0},_moveLeft:function(t,e){return this._move(t,e,"Left")},_moveRight:function(t,e){return this._move(t,e,"Right")},moveCursorLeftWithoutShift:function(t){var e=!0;return this._selectionDirection="left",this.selectionEnd===this.selectionStart&&0!==this.selectionStart&&(e=this._moveLeft(t,"selectionStart")),this.selectionEnd=this.selectionStart,e},moveCursorLeftWithShift:function(t){return"right"===this._selectionDirection&&this.selectionStart!==this.selectionEnd?this._moveLeft(t,"selectionEnd"):0!==this.selectionStart?(this._selectionDirection="left",this._moveLeft(t,"selectionStart")):void 0},moveCursorRight:function(t){this.selectionStart>=this._text.length&&this.selectionEnd>=this._text.length||this._moveCursorLeftOrRight("Right",t)},_moveCursorLeftOrRight:function(t,e){t="moveCursor"+t+"With";this._currentCursorOpacity=1,e.shiftKey?t+="Shift":t+="outShift",this[t](e)&&(this.abortCursorAnimation(),this.initDelayedCursor(),this._fireSelectionChanged(),this._updateTextarea())},moveCursorRightWithShift:function(t){return"left"===this._selectionDirection&&this.selectionStart!==this.selectionEnd?this._moveRight(t,"selectionStart"):this.selectionEnd!==this._text.length?(this._selectionDirection="right",this._moveRight(t,"selectionEnd")):void 0},moveCursorRightWithoutShift:function(t){var e=!0;return this._selectionDirection="right",this.selectionStart===this.selectionEnd?(e=this._moveRight(t,"selectionStart"),this.selectionEnd=this.selectionStart):this.selectionStart=this.selectionEnd,e},removeChars:function(t,e){this.removeStyleFromTo(t,e=void 0===e?t+1:e),this._text.splice(t,e-t),this.text=this._text.join(""),this.set("dirty",!0),this._shouldClearDimensionCache()&&(this.initDimensions(),this.setCoords()),this._removeExtraneousStyles()},insertChars:function(t,e,i,r){i<(r=void 0===r?i:r)&&this.removeStyleFromTo(i,r);t=fabric.util.string.graphemeSplit(t);this.insertNewStyleBlock(t,i,e),this._text=[].concat(this._text.slice(0,i),t,this._text.slice(r)),this.text=this._text.join(""),this.set("dirty",!0),this._shouldClearDimensionCache()&&(this.initDimensions(),this.setCoords()),this._removeExtraneousStyles()}}),function(){var a=fabric.util.toFixed,c=/  +/g;fabric.util.object.extend(fabric.Text.prototype,{_toSVG:function(){var t=this._getSVGLeftTopOffsets(),t=this._getSVGTextAndBg(t.textTop,t.textLeft);return this._wrapSVGTextAndBg(t)},toSVG:function(t){return this._createBaseSVGMarkup(this._toSVG(),{reviver:t,noStyle:!0,withShadow:!0})},_getSVGLeftTopOffsets:function(){return{textLeft:-this.width/2,textTop:-this.height/2,lineTop:this.getHeightOfLine(0)}},_wrapSVGTextAndBg:function(t){var e=this.getSvgTextDecoration(this);return[t.textBgRects.join(""),'\t\t<text xml:space="preserve" ',this.fontFamily?'font-family="'+this.fontFamily.replace(/"/g,"'")+'" ':"",this.fontSize?'font-size="'+this.fontSize+'" ':"",this.fontStyle?'font-style="'+this.fontStyle+'" ':"",this.fontWeight?'font-weight="'+this.fontWeight+'" ':"",e?'text-decoration="'+e+'" ':"",'style="',this.getSvgStyles(!0),'"',this.addPaintOrder()," >",t.textSpans.join(""),"</text>\n"]},_getSVGTextAndBg:function(t,e){var i,r=[],n=[],s=t;this._setSVGBg(n);for(var o=0,a=this._textLines.length;o<a;o++)i=this._getLineLeftOffset(o),(this.textBackgroundColor||this.styleHas("textBackgroundColor",o))&&this._setSVGTextLineBg(n,o,e+i,s),this._setSVGTextLineText(r,o,e+i,s),s+=this.getHeightOfLine(o);return{textSpans:r,textBgRects:n}},_createTextCharSpan:function(t,e,i,r){var n=t!==t.trim()||t.match(c),s=this.getSvgSpanStyles(e,n),o=s?'style="'+s+'"':"",n=e.deltaY,s="",e=fabric.Object.NUM_FRACTION_DIGITS;return n&&(s=' dy="'+a(n,e)+'" '),['<tspan x="',a(i,e),'" y="',a(r,e),'" ',s,o,">",fabric.util.string.escapeXml(t),"</tspan>"].join("")},_setSVGTextLineText:function(t,e,i,r){var n,s,o,a,c=this.getHeightOfLine(e),h=-1!==this.textAlign.indexOf("justify"),l="",u=0,f=this._textLines[e];r+=c*(1-this._fontSizeFraction)/this.lineHeight;for(var d=0,g=f.length-1;d<=g;d++)a=d===g||this.charSpacing,l+=f[d],o=this.__charBounds[e][d],0===u?(i+=o.kernedWidth-o.width,u+=o.width):u+=o.kernedWidth,(a=h&&!a&&this._reSpaceAndTab.test(f[d])?!0:a)||(n=n||this.getCompleteStyleDeclaration(e,d),s=this.getCompleteStyleDeclaration(e,d+1),a=this._hasStyleChangedForSvg(n,s)),a&&(a=this._getStyleDeclaration(e,d)||{},t.push(this._createTextCharSpan(l,a,i,r)),l="",n=s,i+=u,u=0)},_pushTextBgRect:function(t,e,i,r,n,s){var o=fabric.Object.NUM_FRACTION_DIGITS;t.push("\t\t<rect ",this._getFillAttributes(e),' x="',a(i,o),'" y="',a(r,o),'" width="',a(n,o),'" height="',a(s,o),'"></rect>\n')},_setSVGTextLineBg:function(t,e,i,r){for(var n,s,o=this._textLines[e],a=this.getHeightOfLine(e)/this.lineHeight,c=0,h=0,l=this.getValueOfPropertyAt(e,0,"textBackgroundColor"),u=0,f=o.length;u<f;u++)n=this.__charBounds[e][u],(s=this.getValueOfPropertyAt(e,u,"textBackgroundColor"))!==l?(l&&this._pushTextBgRect(t,l,i+h,r,c,a),h=n.left,c=n.width,l=s):c+=n.kernedWidth;s&&this._pushTextBgRect(t,s,i+h,r,c,a)},_getFillAttributes:function(t){var e=t&&"string"==typeof t?new fabric.Color(t):"";return e&&e.getSource()&&1!==e.getAlpha()?'opacity="'+e.getAlpha()+'" fill="'+e.setAlpha(1).toRgb()+'"':'fill="'+t+'"'},_getSVGLineTopOffset:function(t){for(var e,i=0,r=0;r<t;r++)i+=this.getHeightOfLine(r);return e=this.getHeightOfLine(r),{lineTop:i,offset:(this._fontSizeMult-this._fontSizeFraction)*e/(this.lineHeight*this._fontSizeMult)}},getSvgStyles:function(t){return fabric.Object.prototype.getSvgStyles.call(this,t)+" white-space: pre;"}})}(),function(t){"use strict";var b=t.fabric||(t.fabric={});b.Textbox=b.util.createClass(b.IText,b.Observable,{type:"textbox",minWidth:20,dynamicMinWidth:2,__cachedLines:null,lockScalingFlip:!0,noScaleCache:!1,_dimensionAffectingProps:b.Text.prototype._dimensionAffectingProps.concat("width"),_wordJoiners:/[ \t\r]/,splitByGrapheme:!1,initDimensions:function(){this.__skipDimension||(this.isEditing&&this.initDelayedCursor(),this.clearContextTop(),this._clearCache(),this.dynamicMinWidth=0,this._styleMap=this._generateStyleMap(this._splitText()),this.dynamicMinWidth>this.width&&this._set("width",this.dynamicMinWidth),-1!==this.textAlign.indexOf("justify")&&this.enlargeSpaces(),this.height=this.calcTextHeight(),this.saveState({propertySet:"_dimensionAffectingProps"}))},_generateStyleMap:function(t){for(var e=0,i=0,r=0,n={},s=0;s<t.graphemeLines.length;s++)"\n"===t.graphemeText[r]&&0<s?(i=0,r++,e++):!this.splitByGrapheme&&this._reSpaceAndTab.test(t.graphemeText[r])&&0<s&&(i++,r++),n[s]={line:e,offset:i},r+=t.graphemeLines[s].length,i+=t.graphemeLines[s].length;return n},styleHas:function(t,e){var i;return!this._styleMap||this.isWrapping||(i=this._styleMap[e])&&(e=i.line),b.Text.prototype.styleHas.call(this,t,e)},isEmptyStyles:function(t){if(!this.styles)return!0;var e,i,r,n=0,s=!1,o=this._styleMap[t],a=this._styleMap[t+1];for(r in o&&(t=o.line,n=o.offset),a&&(s=a.line===t,e=a.offset),i=void 0===t?this.styles:{line:this.styles[t]})for(var c in i[r])if(n<=c&&(!s||c<e))for(var h in i[r][c])return!1;return!0},_getStyleDeclaration:function(t,e){if(this._styleMap&&!this.isWrapping){var i=this._styleMap[t];if(!i)return null;t=i.line,e=i.offset+e}return this.callSuper("_getStyleDeclaration",t,e)},_setStyleDeclaration:function(t,e,i){var r=this._styleMap[t];t=r.line,e=r.offset+e,this.styles[t][e]=i},_deleteStyleDeclaration:function(t,e){var i=this._styleMap[t];t=i.line,e=i.offset+e,delete this.styles[t][e]},_getLineStyle:function(t){t=this._styleMap[t];return!!this.styles[t.line]},_setLineStyle:function(t){t=this._styleMap[t];this.styles[t.line]={}},_wrapText:function(t,e){var i,r=[];for(this.isWrapping=!0,i=0;i<t.length;i++)r=r.concat(this._wrapLine(t[i],i,e));return this.isWrapping=!1,r},_measureWord:function(t,e,i){var r,n=0;i=i||0;for(var s=0,o=t.length;s<o;s++)n+=this._getGraphemeBox(t[s],e,s+i,r,!0).kernedWidth,r=t[s];return n},_wrapLine:function(t,e,i,r){var n,s,o=0,a=this.splitByGrapheme,c=[],h=[],l=a?b.util.string.graphemeSplit(t):t.split(this._wordJoiners),u=0,f=a?"":" ",d=0,g=0,p=!0,m=this._getWidthOfCharSpacing(),r=r||0;0===l.length&&l.push([]),i-=r;for(var v=0;v<l.length;v++)n=a?l[v]:b.util.string.graphemeSplit(l[v]),s=this._measureWord(n,e,u),u+=n.length,i<(o+=d+s-m)&&!p?(c.push(h),h=[],o=s,p=!0):o+=m,p||a||h.push(f),h=h.concat(n),d=a?0:this._measureWord([f],e,u),u++,p=!1,g<s&&(g=s);return v&&c.push(h),g+r>this.dynamicMinWidth&&(this.dynamicMinWidth=g-m+r),c},isEndOfWrapping:function(t){return!this._styleMap[t+1]||this._styleMap[t+1].line!==this._styleMap[t].line},missingNewlineOffset:function(t){return!this.splitByGrapheme||this.isEndOfWrapping(t)?1:0},_splitTextIntoLines:function(t){for(var t=b.Text.prototype._splitTextIntoLines.call(this,t),e=this._wrapText(t.lines,this.width),i=new Array(e.length),r=0;r<e.length;r++)i[r]=e[r].join("");return t.lines=i,t.graphemeLines=e,t},getMinWidth:function(){return Math.max(this.minWidth,this.dynamicMinWidth)},_removeExtraneousStyles:function(){var t,e={};for(t in this._styleMap)this._textLines[t]&&(e[this._styleMap[t].line]=1);for(t in this.styles)e[t]||delete this.styles[t]},toObject:function(t){return this.callSuper("toObject",["minWidth","splitByGrapheme"].concat(t))}}),b.Textbox.fromObject=function(t,e){return b.Object._fromObject("Textbox",t,e,"text")}}("undefined"!=typeof exports?exports:this),function(){var t=fabric.controlsUtils,e=t.scaleSkewCursorStyleHandler,i=t.scaleCursorStyleHandler,r=t.scalingEqually,n=t.scalingYOrSkewingX,s=t.scalingXOrSkewingY,o=t.scaleOrSkewActionName,a=fabric.Object.prototype.controls;a.ml=new fabric.Control({x:-.5,y:0,cursorStyleHandler:e,actionHandler:s,getActionName:o}),a.mr=new fabric.Control({x:.5,y:0,cursorStyleHandler:e,actionHandler:s,getActionName:o}),a.mb=new fabric.Control({x:0,y:.5,cursorStyleHandler:e,actionHandler:n,getActionName:o}),a.mt=new fabric.Control({x:0,y:-.5,cursorStyleHandler:e,actionHandler:n,getActionName:o}),a.tl=new fabric.Control({x:-.5,y:-.5,cursorStyleHandler:i,actionHandler:r}),a.tr=new fabric.Control({x:.5,y:-.5,cursorStyleHandler:i,actionHandler:r}),a.bl=new fabric.Control({x:-.5,y:.5,cursorStyleHandler:i,actionHandler:r}),a.br=new fabric.Control({x:.5,y:.5,cursorStyleHandler:i,actionHandler:r}),a.mtr=new fabric.Control({x:0,y:-.5,actionHandler:t.rotationWithSnapping,cursorStyleHandler:t.rotationStyleHandler,offsetY:-40,withConnection:!0,actionName:"rotate"}),fabric.Textbox&&((r=fabric.Textbox.prototype.controls={}).mtr=a.mtr,r.tr=a.tr,r.br=a.br,r.tl=a.tl,r.bl=a.bl,r.mt=a.mt,r.mb=a.mb,r.mr=new fabric.Control({x:.5,y:0,actionHandler:t.changeWidth,cursorStyleHandler:e,actionName:"resizing"}),r.ml=new fabric.Control({x:-.5,y:0,actionHandler:t.changeWidth,cursorStyleHandler:e,actionName:"resizing"}))}();
\ No newline at end of file
diff --git a/www/whiteboard/inner.js b/www/whiteboard/inner.js
index 13a0fa82f..a10b64e78 100644
--- a/www/whiteboard/inner.js
+++ b/www/whiteboard/inner.js
@@ -14,7 +14,7 @@ define([
     '/customize/application_config.js',
     '/bower_components/chainpad/chainpad.dist.js',
 
-    '/bower_components/secure-fabric.js/dist/fabric.min.js',
+    '/lib/fabric.min.js',
     'less!/whiteboard/app-whiteboard.less'
 ], function (
     $,
@@ -123,7 +123,7 @@ define([
         APP.draw = true;
         $brush.click(function () {
             if (APP.draw) { return; }
-            canvas.deactivateAll().renderAll();
+            canvas.discardActiveObject().renderAll();
             APP.draw = true;
             canvas.isDrawingMode = APP.draw;
             $type.find('button').removeClass('btn-primary');
@@ -132,7 +132,7 @@ define([
         });
         $move.click(function () {
             if (!APP.draw) { return; }
-            canvas.deactivateAll().renderAll();
+            canvas.discardActiveObject().renderAll();
             APP.draw = false;
             canvas.isDrawingMode = APP.draw;
             $type.find('button').removeClass('btn-primary');
@@ -171,14 +171,15 @@ define([
 
         var deleteSelection = function () {
             if (APP.draw) { return; }
+            /*
             if (canvas.getActiveObject()) {
                 canvas.getActiveObject().remove();
-            }
-            if (canvas.getActiveGroup()) {
-                canvas.getActiveGroup()._objects.forEach(function (el) {
-                    el.remove();
+            }*/
+            if (canvas.getActiveObjects()) {
+                canvas.getActiveObjects().forEach(function (el) {
+                    APP.canvas.remove(el);
                 });
-                canvas.discardActiveGroup();
+                canvas.discardActiveObject();
             }
             canvas.renderAll();
             APP.onLocal();
@@ -342,7 +343,7 @@ define([
 
             canvas.isDrawingMode = bool ? APP.draw : false;
             if (!bool) {
-                canvas.deactivateAll();
+                canvas.discardActiveObject();
                 canvas.renderAll();
             }
             canvas.forEachObject(function (object) {
@@ -367,7 +368,7 @@ define([
         APP.FM = framework._.sfCommon.createFileManager({});
         APP.upload = function (title) {
             var canvas = $canvas[0];
-            APP.canvas.deactivateAll().renderAll();
+            APP.canvas.discardActiveObject().renderAll();
             canvas.toBlob(function (blob) {
                 blob.name = title;
                 APP.FM.handleFile(blob);