konva/konva.min.js

HTML5 2d canvas library.

!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):(t="undefined"!=typeof globalThis?globalThis:t||self).Konva=e()}(this,(function(){"use strict";
/*
   * Konva JavaScript Framework v9.3.20
   * http://konvajs.org/
   * Licensed under the MIT
   * Date: Thu Mar 20 2025
   *
   * Original work Copyright (C) 2011 - 2013 by Eric Rowell (KineticJS)
   * Modified work Copyright (C) 2014 - present by Anton Lavrenov (Konva)
   *
   * @license
   */const t=Math.PI/180;const e="undefined"!=typeof global?global:"undefined"!=typeof window?window:"undefined"!=typeof WorkerGlobalScope?self:{},i={_global:e,version:"9.3.20",isBrowser:"undefined"!=typeof window&&("[object Window]"==={}.toString.call(window)||"[object global]"==={}.toString.call(window)),isUnminified:/param/.test(function(t){}.toString()),dblClickWindow:400,getAngle:e=>i.angleDeg?e*t:e,enableTrace:!1,pointerEventsEnabled:!0,autoDrawEnabled:!0,hitOnDragEnabled:!1,capturePointerEventsEnabled:!1,_mouseListenClick:!1,_touchListenClick:!1,_pointerListenClick:!1,_mouseInDblClickWindow:!1,_touchInDblClickWindow:!1,_pointerInDblClickWindow:!1,_mouseDblClickPointerId:null,_touchDblClickPointerId:null,_pointerDblClickPointerId:null,_fixTextRendering:!1,pixelRatio:"undefined"!=typeof window&&window.devicePixelRatio||1,dragDistance:3,angleDeg:!0,showWarnings:!0,dragButtons:[0,1],isDragging:()=>i.DD.isDragging,isTransforming(){var t;return null===(t=i.Transformer)||void 0===t?void 0:t.isTransforming()},isDragReady:()=>!!i.DD.node,releaseCanvasOnDestroy:!0,document:e.document,_injectGlobal(t){e.Konva=t}},n=t=>{i[t.prototype.getClassName()]=t};i._injectGlobal(i);class s{constructor(t=[1,0,0,1,0,0]){this.dirty=!1,this.m=t&&t.slice()||[1,0,0,1,0,0]}reset(){this.m[0]=1,this.m[1]=0,this.m[2]=0,this.m[3]=1,this.m[4]=0,this.m[5]=0}copy(){return new s(this.m)}copyInto(t){t.m[0]=this.m[0],t.m[1]=this.m[1],t.m[2]=this.m[2],t.m[3]=this.m[3],t.m[4]=this.m[4],t.m[5]=this.m[5]}point(t){const e=this.m;return{x:e[0]*t.x+e[2]*t.y+e[4],y:e[1]*t.x+e[3]*t.y+e[5]}}translate(t,e){return this.m[4]+=this.m[0]*t+this.m[2]*e,this.m[5]+=this.m[1]*t+this.m[3]*e,this}scale(t,e){return this.m[0]*=t,this.m[1]*=t,this.m[2]*=e,this.m[3]*=e,this}rotate(t){const e=Math.cos(t),i=Math.sin(t),n=this.m[0]*e+this.m[2]*i,s=this.m[1]*e+this.m[3]*i,r=this.m[0]*-i+this.m[2]*e,a=this.m[1]*-i+this.m[3]*e;return this.m[0]=n,this.m[1]=s,this.m[2]=r,this.m[3]=a,this}getTranslation(){return{x:this.m[4],y:this.m[5]}}skew(t,e){const i=this.m[0]+this.m[2]*e,n=this.m[1]+this.m[3]*e,s=this.m[2]+this.m[0]*t,r=this.m[3]+this.m[1]*t;return this.m[0]=i,this.m[1]=n,this.m[2]=s,this.m[3]=r,this}multiply(t){const e=this.m[0]*t.m[0]+this.m[2]*t.m[1],i=this.m[1]*t.m[0]+this.m[3]*t.m[1],n=this.m[0]*t.m[2]+this.m[2]*t.m[3],s=this.m[1]*t.m[2]+this.m[3]*t.m[3],r=this.m[0]*t.m[4]+this.m[2]*t.m[5]+this.m[4],a=this.m[1]*t.m[4]+this.m[3]*t.m[5]+this.m[5];return this.m[0]=e,this.m[1]=i,this.m[2]=n,this.m[3]=s,this.m[4]=r,this.m[5]=a,this}invert(){const t=1/(this.m[0]*this.m[3]-this.m[1]*this.m[2]),e=this.m[3]*t,i=-this.m[1]*t,n=-this.m[2]*t,s=this.m[0]*t,r=t*(this.m[2]*this.m[5]-this.m[3]*this.m[4]),a=t*(this.m[1]*this.m[4]-this.m[0]*this.m[5]);return this.m[0]=e,this.m[1]=i,this.m[2]=n,this.m[3]=s,this.m[4]=r,this.m[5]=a,this}getMatrix(){return this.m}decompose(){const t=this.m[0],e=this.m[1],i=this.m[2],n=this.m[3],s=t*n-e*i,r={x:this.m[4],y:this.m[5],rotation:0,scaleX:0,scaleY:0,skewX:0,skewY:0};if(0!=t||0!=e){const a=Math.sqrt(t*t+e*e);r.rotation=e>0?Math.acos(t/a):-Math.acos(t/a),r.scaleX=a,r.scaleY=s/a,r.skewX=(t*i+e*n)/s,r.skewY=0}else if(0!=i||0!=n){const a=Math.sqrt(i*i+n*n);r.rotation=Math.PI/2-(n>0?Math.acos(-i/a):-Math.acos(i/a)),r.scaleX=s/a,r.scaleY=a,r.skewX=0,r.skewY=(t*i+e*n)/s}return r.rotation=g._getRotation(r.rotation),r}}const r=Math.PI/180,a=180/Math.PI,o="Konva error: ",h={aliceblue:[240,248,255],antiquewhite:[250,235,215],aqua:[0,255,255],aquamarine:[127,255,212],azure:[240,255,255],beige:[245,245,220],bisque:[255,228,196],black:[0,0,0],blanchedalmond:[255,235,205],blue:[0,0,255],blueviolet:[138,43,226],brown:[165,42,42],burlywood:[222,184,135],cadetblue:[95,158,160],chartreuse:[127,255,0],chocolate:[210,105,30],coral:[255,127,80],cornflowerblue:[100,149,237],cornsilk:[255,248,220],crimson:[220,20,60],cyan:[0,255,255],darkblue:[0,0,139],darkcyan:[0,139,139],darkgoldenrod:[184,132,11],darkgray:[169,169,169],darkgreen:[0,100,0],darkgrey:[169,169,169],darkkhaki:[189,183,107],darkmagenta:[139,0,139],darkolivegreen:[85,107,47],darkorange:[255,140,0],darkorchid:[153,50,204],darkred:[139,0,0],darksalmon:[233,150,122],darkseagreen:[143,188,143],darkslateblue:[72,61,139],darkslategray:[47,79,79],darkslategrey:[47,79,79],darkturquoise:[0,206,209],darkviolet:[148,0,211],deeppink:[255,20,147],deepskyblue:[0,191,255],dimgray:[105,105,105],dimgrey:[105,105,105],dodgerblue:[30,144,255],firebrick:[178,34,34],floralwhite:[255,255,240],forestgreen:[34,139,34],fuchsia:[255,0,255],gainsboro:[220,220,220],ghostwhite:[248,248,255],gold:[255,215,0],goldenrod:[218,165,32],gray:[128,128,128],green:[0,128,0],greenyellow:[173,255,47],grey:[128,128,128],honeydew:[240,255,240],hotpink:[255,105,180],indianred:[205,92,92],indigo:[75,0,130],ivory:[255,255,240],khaki:[240,230,140],lavender:[230,230,250],lavenderblush:[255,240,245],lawngreen:[124,252,0],lemonchiffon:[255,250,205],lightblue:[173,216,230],lightcoral:[240,128,128],lightcyan:[224,255,255],lightgoldenrodyellow:[250,250,210],lightgray:[211,211,211],lightgreen:[144,238,144],lightgrey:[211,211,211],lightpink:[255,182,193],lightsalmon:[255,160,122],lightseagreen:[32,178,170],lightskyblue:[135,206,250],lightslategray:[119,136,153],lightslategrey:[119,136,153],lightsteelblue:[176,196,222],lightyellow:[255,255,224],lime:[0,255,0],limegreen:[50,205,50],linen:[250,240,230],magenta:[255,0,255],maroon:[128,0,0],mediumaquamarine:[102,205,170],mediumblue:[0,0,205],mediumorchid:[186,85,211],mediumpurple:[147,112,219],mediumseagreen:[60,179,113],mediumslateblue:[123,104,238],mediumspringgreen:[0,250,154],mediumturquoise:[72,209,204],mediumvioletred:[199,21,133],midnightblue:[25,25,112],mintcream:[245,255,250],mistyrose:[255,228,225],moccasin:[255,228,181],navajowhite:[255,222,173],navy:[0,0,128],oldlace:[253,245,230],olive:[128,128,0],olivedrab:[107,142,35],orange:[255,165,0],orangered:[255,69,0],orchid:[218,112,214],palegoldenrod:[238,232,170],palegreen:[152,251,152],paleturquoise:[175,238,238],palevioletred:[219,112,147],papayawhip:[255,239,213],peachpuff:[255,218,185],peru:[205,133,63],pink:[255,192,203],plum:[221,160,203],powderblue:[176,224,230],purple:[128,0,128],rebeccapurple:[102,51,153],red:[255,0,0],rosybrown:[188,143,143],royalblue:[65,105,225],saddlebrown:[139,69,19],salmon:[250,128,114],sandybrown:[244,164,96],seagreen:[46,139,87],seashell:[255,245,238],sienna:[160,82,45],silver:[192,192,192],skyblue:[135,206,235],slateblue:[106,90,205],slategray:[119,128,144],slategrey:[119,128,144],snow:[255,255,250],springgreen:[0,255,127],steelblue:[70,130,180],tan:[210,180,140],teal:[0,128,128],thistle:[216,191,216],transparent:[255,255,255,0],tomato:[255,99,71],turquoise:[64,224,208],violet:[238,130,238],wheat:[245,222,179],white:[255,255,255],whitesmoke:[245,245,245],yellow:[255,255,0],yellowgreen:[154,205,5]},l=/rgb\((\d{1,3}),(\d{1,3}),(\d{1,3})\)/;let 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Use ""'+i+'" instead.')}t.prototype[e]=a,t.prototype[s]=a,t.prototype[r]=a}))},afterSetFilter(){this._filterUpToDate=!1}};const C=["arc","arcTo","beginPath","bezierCurveTo","clearRect","clip","closePath","createLinearGradient","createPattern","createRadialGradient","drawImage","ellipse","fill","fillText","getImageData","createImageData","lineTo","moveTo","putImageData","quadraticCurveTo","rect","roundRect","restore","rotate","save","scale","setLineDash","setTransform","stroke","strokeText","transform","translate"];class P{constructor(t){this.canvas=t,i.enableTrace&&(this.traceArr=[],this._enableTrace())}fillShape(t){t.fillEnabled()&&this._fill(t)}_fill(t){}strokeShape(t){t.hasStroke()&&this._stroke(t)}_stroke(t){}fillStrokeShape(t){t.attrs.fillAfterStrokeEnabled?(this.strokeShape(t),this.fillShape(t)):(this.fillShape(t),this.strokeShape(t))}getTrace(t,e){let i,n,s,r,a=this.traceArr,o=a.length,h="";for(i=0;i<o;i++)n=a[i],s=n.method,s?(r=n.args,h+=s,t?h+="()":g._isArray(r[0])?h+="(["+r.join(",")+"])":(e&&(r=r.map((t=>"number"==typeof t?Math.floor(t):t))),h+="("+r.join(",")+")")):(h+=n.property,t||(h+="="+n.val)),h+=";";return h}clearTrace(){this.traceArr=[]}_trace(t){let e,i=this.traceArr;i.push(t),e=i.length,e>=100&&i.shift()}reset(){const t=this.getCanvas().getPixelRatio();this.setTransform(1*t,0,0,1*t,0,0)}getCanvas(){return this.canvas}clear(t){const e=this.getCanvas();t?this.clearRect(t.x||0,t.y||0,t.width||0,t.height||0):this.clearRect(0,0,e.getWidth()/e.pixelRatio,e.getHeight()/e.pixelRatio)}_applyLineCap(t){const e=t.attrs.lineCap;e&&this.setAttr("lineCap",e)}_applyOpacity(t){const e=t.getAbsoluteOpacity();1!==e&&this.setAttr("globalAlpha",e)}_applyLineJoin(t){const e=t.attrs.lineJoin;e&&this.setAttr("lineJoin",e)}setAttr(t,e){this._context[t]=e}arc(t,e,i,n,s,r){this._context.arc(t,e,i,n,s,r)}arcTo(t,e,i,n,s){this._context.arcTo(t,e,i,n,s)}beginPath(){this._context.beginPath()}bezierCurveTo(t,e,i,n,s,r){this._context.bezierCurveTo(t,e,i,n,s,r)}clearRect(t,e,i,n){this._context.clearRect(t,e,i,n)}clip(...t){this._context.clip.apply(this._context,t)}closePath(){this._context.closePath()}createImageData(t,e){const i=arguments;return 2===i.length?this._context.createImageData(t,e):1===i.length?this._context.createImageData(t):void 0}createLinearGradient(t,e,i,n){return this._context.createLinearGradient(t,e,i,n)}createPattern(t,e){return this._context.createPattern(t,e)}createRadialGradient(t,e,i,n,s,r){return this._context.createRadialGradient(t,e,i,n,s,r)}drawImage(t,e,i,n,s,r,a,o,h){const l=arguments,d=this._context;3===l.length?d.drawImage(t,e,i):5===l.length?d.drawImage(t,e,i,n,s):9===l.length&&d.drawImage(t,e,i,n,s,r,a,o,h)}ellipse(t,e,i,n,s,r,a,o){this._context.ellipse(t,e,i,n,s,r,a,o)}isPointInPath(t,e,i,n){return i?this._context.isPointInPath(i,t,e,n):this._context.isPointInPath(t,e,n)}fill(...t){this._context.fill.apply(this._context,t)}fillRect(t,e,i,n){this._context.fillRect(t,e,i,n)}strokeRect(t,e,i,n){this._context.strokeRect(t,e,i,n)}fillText(t,e,i,n){n?this._context.fillText(t,e,i,n):this._context.fillText(t,e,i)}measureText(t){return this._context.measureText(t)}getImageData(t,e,i,n){return this._context.getImageData(t,e,i,n)}lineTo(t,e){this._context.lineTo(t,e)}moveTo(t,e){this._context.moveTo(t,e)}rect(t,e,i,n){this._context.rect(t,e,i,n)}roundRect(t,e,i,n,s){this._context.roundRect(t,e,i,n,s)}putImageData(t,e,i){this._context.putImageData(t,e,i)}quadraticCurveTo(t,e,i,n){this._context.quadraticCurveTo(t,e,i,n)}restore(){this._context.restore()}rotate(t){this._context.rotate(t)}save(){this._context.save()}scale(t,e){this._context.scale(t,e)}setLineDash(t){this._context.setLineDash?this._context.setLineDash(t):"mozDash"in this._context?this._context.mozDash=t:"webkitLineDash"in this._context&&(this._context.webkitLineDash=t)}getLineDash(){return this._context.getLineDash()}setTransform(t,e,i,n,s,r){this._context.setTransform(t,e,i,n,s,r)}stroke(t){t?this._context.stroke(t):this._context.stroke()}strokeText(t,e,i,n){this._context.strokeText(t,e,i,n)}transform(t,e,i,n,s,r){this._context.transform(t,e,i,n,s,r)}translate(t,e){this._context.translate(t,e)}_enableTrace(){let t,e,i=this,n=C.length,s=this.setAttr;const r=function(t){let n,s=i[t];i[t]=function(){return e=function(t){const e=[],i=t.length,n=g;for(let s=0;s<i;s++){let i=t[s];n._isNumber(i)?i=Math.round(1e3*i)/1e3:n._isString(i)||(i+=""),e.push(i)}return e}(Array.prototype.slice.call(arguments,0)),n=s.apply(i,arguments),i._trace({method:t,args:e}),n}};for(t=0;t<n;t++)r(C[t]);i.setAttr=function(){s.apply(i,arguments);const t=arguments[0];let e=arguments[1];"shadowOffsetX"!==t&&"shadowOffsetY"!==t&&"shadowBlur"!==t||(e/=this.canvas.getPixelRatio()),i._trace({property:t,val:e})}}_applyGlobalCompositeOperation(t){const e=t.attrs.globalCompositeOperation;!e||"source-over"===e||this.setAttr("globalCompositeOperation",e)}}["fillStyle","strokeStyle","shadowColor","shadowBlur","shadowOffsetX","shadowOffsetY","letterSpacing","lineCap","lineDashOffset","lineJoin","lineWidth","miterLimit","direction","font","textAlign","textBaseline","globalAlpha","globalCompositeOperation","imageSmoothingEnabled"].forEach((function(t){Object.defineProperty(P.prototype,t,{get(){return this._context[t]},set(e){this._context[t]=e}})}));class k extends P{constructor(t,{willReadFrequently:e=!1}={}){super(t),this._context=t._canvas.getContext("2d",{willReadFrequently:e})}_fillColor(t){const e=t.fill();this.setAttr("fillStyle",e),t._fillFunc(this)}_fillPattern(t){this.setAttr("fillStyle",t._getFillPattern()),t._fillFunc(this)}_fillLinearGradient(t){const e=t._getLinearGradient();e&&(this.setAttr("fillStyle",e),t._fillFunc(this))}_fillRadialGradient(t){const e=t._getRadialGradient();e&&(this.setAttr("fillStyle",e),t._fillFunc(this))}_fill(t){const e=t.fill(),i=t.getFillPriority();if(e&&"color"===i)return void this._fillColor(t);const n=t.getFillPatternImage();if(n&&"pattern"===i)return void this._fillPattern(t);const s=t.getFillLinearGradientColorStops();if(s&&"linear-gradient"===i)return void this._fillLinearGradient(t);const r=t.getFillRadialGradientColorStops();r&&"radial-gradient"===i?this._fillRadialGradient(t):e?this._fillColor(t):n?this._fillPattern(t):s?this._fillLinearGradient(t):r&&this._fillRadialGradient(t)}_strokeLinearGradient(t){const e=t.getStrokeLinearGradientStartPoint(),i=t.getStrokeLinearGradientEndPoint(),n=t.getStrokeLinearGradientColorStops(),s=this.createLinearGradient(e.x,e.y,i.x,i.y);if(n){for(let t=0;t<n.length;t+=2)s.addColorStop(n[t],n[t+1]);this.setAttr("strokeStyle",s)}}_stroke(t){const e=t.dash(),i=t.getStrokeScaleEnabled();if(t.hasStroke()){if(!i){this.save();const t=this.getCanvas().getPixelRatio();this.setTransform(t,0,0,t,0,0)}this._applyLineCap(t),e&&t.dashEnabled()&&(this.setLineDash(e),this.setAttr("lineDashOffset",t.dashOffset())),this.setAttr("lineWidth",t.strokeWidth()),t.getShadowForStrokeEnabled()||this.setAttr("shadowColor","rgba(0,0,0,0)");t.getStrokeLinearGradientColorStops()?this._strokeLinearGradient(t):this.setAttr("strokeStyle",t.stroke()),t._strokeFunc(this),i||this.restore()}}_applyShadow(t){var e,i,n;const s=null!==(e=t.getShadowRGBA())&&void 0!==e?e:"black",r=null!==(i=t.getShadowBlur())&&void 0!==i?i:5,a=null!==(n=t.getShadowOffset())&&void 0!==n?n:{x:0,y:0},o=t.getAbsoluteScale(),h=this.canvas.getPixelRatio(),l=o.x*h,d=o.y*h;this.setAttr("shadowColor",s),this.setAttr("shadowBlur",r*Math.min(Math.abs(l),Math.abs(d))),this.setAttr("shadowOffsetX",a.x*l),this.setAttr("shadowOffsetY",a.y*d)}}class A extends P{constructor(t){super(t),this._context=t._canvas.getContext("2d",{willReadFrequently:!0})}_fill(t){this.save(),this.setAttr("fillStyle",t.colorKey),t._fillFuncHit(this),this.restore()}strokeShape(t){t.hasHitStroke()&&this._stroke(t)}_stroke(t){if(t.hasHitStroke()){const e=t.getStrokeScaleEnabled();if(!e){this.save();const t=this.getCanvas().getPixelRatio();this.setTransform(t,0,0,t,0,0)}this._applyLineCap(t);const i=t.hitStrokeWidth(),n="auto"===i?t.strokeWidth():i;this.setAttr("lineWidth",n),this.setAttr("strokeStyle",t.colorKey),t._strokeFuncHit(this),e||this.restore()}}}let T;class M{constructor(t){this.pixelRatio=1,this.width=0,this.height=0,this.isCache=!1;const e=(t||{}).pixelRatio||i.pixelRatio||function(){if(T)return T;const t=g.createCanvasElement(),e=t.getContext("2d");return T=(i._global.devicePixelRatio||1)/(e.webkitBackingStorePixelRatio||e.mozBackingStorePixelRatio||e.msBackingStorePixelRatio||e.oBackingStorePixelRatio||e.backingStorePixelRatio||1),g.releaseCanvas(t),T}();this.pixelRatio=e,this._canvas=g.createCanvasElement(),this._canvas.style.padding="0",this._canvas.style.margin="0",this._canvas.style.border="0",this._canvas.style.background="transparent",this._canvas.style.position="absolute",this._canvas.style.top="0",this._canvas.style.left="0"}getContext(){return this.context}getPixelRatio(){return this.pixelRatio}setPixelRatio(t){const e=this.pixelRatio;this.pixelRatio=t,this.setSize(this.getWidth()/e,this.getHeight()/e)}setWidth(t){this.width=this._canvas.width=t*this.pixelRatio,this._canvas.style.width=t+"px";const e=this.pixelRatio;this.getContext()._context.scale(e,e)}setHeight(t){this.height=this._canvas.height=t*this.pixelRatio,this._canvas.style.height=t+"px";const e=this.pixelRatio;this.getContext()._context.scale(e,e)}getWidth(){return this.width}getHeight(){return this.height}setSize(t,e){this.setWidth(t||0),this.setHeight(e||0)}toDataURL(t,e){try{return this._canvas.toDataURL(t,e)}catch(t){try{return this._canvas.toDataURL()}catch(t){return g.error("Unable to get data URL. "+t.message+" For more info read https://konvajs.org/docs/posts/Tainted_Canvas.html."),""}}}}class G extends M{constructor(t={width:0,height:0,willReadFrequently:!1}){super(t),this.context=new k(this,{willReadFrequently:t.willReadFrequently}),this.setSize(t.width,t.height)}}class R extends M{constructor(t={width:0,height:0}){super(t),this.hitCanvas=!0,this.context=new A(this),this.setSize(t.width,t.height)}}const E={get isDragging(){let t=!1;return E._dragElements.forEach((e=>{"dragging"===e.dragStatus&&(t=!0)})),t},justDragged:!1,get node(){let t;return E._dragElements.forEach((e=>{t=e.node})),t},_dragElements:new Map,_drag(t){const e=[];E._dragElements.forEach(((i,n)=>{const{node:s}=i,r=s.getStage();r.setPointersPositions(t),void 0===i.pointerId&&(i.pointerId=g._getFirstPointerId(t));const a=r._changedPointerPositions.find((t=>t.id===i.pointerId));if(a){if("dragging"!==i.dragStatus){const e=s.dragDistance();if(Math.max(Math.abs(a.x-i.startPointerPos.x),Math.abs(a.y-i.startPointerPos.y))<e)return;if(s.startDrag({evt:t}),!s.isDragging())return}s._setDragPosition(t,i),e.push(s)}})),e.forEach((e=>{e.fire("dragmove",{type:"dragmove",target:e,evt:t},!0)}))},_endDragBefore(t){const e=[];E._dragElements.forEach((n=>{const{node:s}=n,r=s.getStage();t&&r.setPointersPositions(t);if(!r._changedPointerPositions.find((t=>t.id===n.pointerId)))return;"dragging"!==n.dragStatus&&"stopped"!==n.dragStatus||(E.justDragged=!0,i._mouseListenClick=!1,i._touchListenClick=!1,i._pointerListenClick=!1,n.dragStatus="stopped");const a=n.node.getLayer()||n.node instanceof i.Stage&&n.node;a&&-1===e.indexOf(a)&&e.push(a)})),e.forEach((t=>{t.draw()}))},_endDragAfter(t){E._dragElements.forEach(((e,i)=>{"stopped"===e.dragStatus&&e.node.fire("dragend",{type:"dragend",target:e.node,evt:t},!0),"dragging"!==e.dragStatus&&E._dragElements.delete(i)}))}};i.isBrowser&&(window.addEventListener("mouseup",E._endDragBefore,!0),window.addEventListener("touchend",E._endDragBefore,!0),window.addEventListener("touchcancel",E._endDragBefore,!0),window.addEventListener("mousemove",E._drag),window.addEventListener("touchmove",E._drag),window.addEventListener("mouseup",E._endDragAfter,!1),window.addEventListener("touchend",E._endDragAfter,!1),window.addEventListener("touchcancel",E._endDragAfter,!1));const D="absoluteOpacity",L="allEventListeners",I="absoluteTransform",O="absoluteScale",F="canvas",B="listening",N="mouseenter",H="mouseleave",z="Shape",W=" ",Y="stage",X="transform",j="visible",q=["xChange.konva","yChange.konva","scaleXChange.konva","scaleYChange.konva","skewXChange.konva","skewYChange.konva","rotationChange.konva","offsetXChange.konva","offsetYChange.konva","transformsEnabledChange.konva"].join(W);let U=1;class V{constructor(t){this._id=U++,this.eventListeners={},this.attrs={},this.index=0,this._allEventListeners=null,this.parent=null,this._cache=new Map,this._attachedDepsListeners=new Map,this._lastPos=null,this._batchingTransformChange=!1,this._needClearTransformCache=!1,this._filterUpToDate=!1,this._isUnderCache=!1,this._dragEventId=null,this._shouldFireChangeEvents=!1,this.setAttrs(t),this._shouldFireChangeEvents=!0}hasChildren(){return!1}_clearCache(t){t!==X&&t!==I||!this._cache.get(t)?t?this._cache.delete(t):this._cache.clear():this._cache.get(t).dirty=!0}_getCache(t,e){let i=this._cache.get(t);return(void 0===i||(t===X||t===I)&&!0===i.dirty)&&(i=e.call(this),this._cache.set(t,i)),i}_calculate(t,e,i){if(!this._attachedDepsListeners.get(t)){const i=e.map((t=>t+"Change.konva")).join(W);this.on(i,(()=>{this._clearCache(t)})),this._attachedDepsListeners.set(t,!0)}return this._getCache(t,i)}_getCanvasCache(){return this._cache.get(F)}_clearSelfAndDescendantCache(t){this._clearCache(t),t===I&&this.fire("absoluteTransformChange")}clearCache(){if(this._cache.has(F)){const{scene:t,filter:e,hit:i}=this._cache.get(F);g.releaseCanvas(t,e,i),this._cache.delete(F)}return this._clearSelfAndDescendantCache(),this._requestDraw(),this}cache(t){const e=t||{};let i={};void 0!==e.x&&void 0!==e.y&&void 0!==e.width&&void 0!==e.height||(i=this.getClientRect({skipTransform:!0,relativeTo:this.getParent()||void 0}));let n=Math.ceil(e.width||i.width),s=Math.ceil(e.height||i.height),r=e.pixelRatio,a=void 0===e.x?Math.floor(i.x):e.x,o=void 0===e.y?Math.floor(i.y):e.y,h=e.offset||0,l=e.drawBorder||!1,d=e.hitCanvasPixelRatio||1;if(!n||!s)return void g.error("Can not cache the node. Width or height of the node equals 0. Caching is skipped.");n+=2*h+(Math.abs(Math.round(i.x)-a)>.5?1:0),s+=2*h+(Math.abs(Math.round(i.y)-o)>.5?1:0),a-=h,o-=h;const c=new G({pixelRatio:r,width:n,height:s}),u=new G({pixelRatio:r,width:0,height:0,willReadFrequently:!0}),f=new R({pixelRatio:d,width:n,height:s}),p=c.getContext(),m=f.getContext();return f.isCache=!0,c.isCache=!0,this._cache.delete(F),this._filterUpToDate=!1,!1===e.imageSmoothingEnabled&&(c.getContext()._context.imageSmoothingEnabled=!1,u.getContext()._context.imageSmoothingEnabled=!1),p.save(),m.save(),p.translate(-a,-o),m.translate(-a,-o),this._isUnderCache=!0,this._clearSelfAndDescendantCache(D),this._clearSelfAndDescendantCache(O),this.drawScene(c,this),this.drawHit(f,this),this._isUnderCache=!1,p.restore(),m.restore(),l&&(p.save(),p.beginPath(),p.rect(0,0,n,s),p.closePath(),p.setAttr("strokeStyle","red"),p.setAttr("lineWidth",5),p.stroke(),p.restore()),this._cache.set(F,{scene:c,filter:u,hit:f,x:a,y:o}),this._requestDraw(),this}isCached(){return this._cache.has(F)}getClientRect(t){throw new Error('abstract "getClientRect" method call')}_transformedRect(t,e){const i=[{x:t.x,y:t.y},{x:t.x+t.width,y:t.y},{x:t.x+t.width,y:t.y+t.height},{x:t.x,y:t.y+t.height}];let n=1/0,s=1/0,r=-1/0,a=-1/0;const o=this.getAbsoluteTransform(e);return i.forEach((function(t){const e=o.point(t);void 0===n&&(n=r=e.x,s=a=e.y),n=Math.min(n,e.x),s=Math.min(s,e.y),r=Math.max(r,e.x),a=Math.max(a,e.y)})),{x:n,y:s,width:r-n,height:a-s}}_drawCachedSceneCanvas(t){t.save(),t._applyOpacity(this),t._applyGlobalCompositeOperation(this);const e=this._getCanvasCache();t.translate(e.x,e.y);const i=this._getCachedSceneCanvas(),n=i.pixelRatio;t.drawImage(i._canvas,0,0,i.width/n,i.height/n),t.restore()}_drawCachedHitCanvas(t){const e=this._getCanvasCache(),i=e.hit;t.save(),t.translate(e.x,e.y),t.drawImage(i._canvas,0,0,i.width/i.pixelRatio,i.height/i.pixelRatio),t.restore()}_getCachedSceneCanvas(){let t,e,i,n,s=this.filters(),r=this._getCanvasCache(),a=r.scene,o=r.filter,h=o.getContext();if(s){if(!this._filterUpToDate){const r=a.pixelRatio;o.setSize(a.width/a.pixelRatio,a.height/a.pixelRatio);try{for(t=s.length,h.clear(),h.drawImage(a._canvas,0,0,a.getWidth()/r,a.getHeight()/r),e=h.getImageData(0,0,o.getWidth(),o.getHeight()),i=0;i<t;i++)n=s[i],"function"==typeof n?(n.call(this,e),h.putImageData(e,0,0)):g.error("Filter should be type of function, but got "+typeof n+" instead. Please check correct filters")}catch(t){g.error("Unable to apply filter. "+t.message+" This post my help you https://konvajs.org/docs/posts/Tainted_Canvas.html.")}this._filterUpToDate=!0}return o}return a}on(t,e){if(this._cache&&this._cache.delete(L),3===arguments.length)return this._delegate.apply(this,arguments);let i,n,s,r,a,o=t.split(W),h=o.length;for(i=0;i<h;i++)n=o[i],s=n.split("."),r=s[0],a=s[1]||"",this.eventListeners[r]||(this.eventListeners[r]=[]),this.eventListeners[r].push({name:a,handler:e});return this}off(t,e){let i,n,s,r,a,o,h=(t||"").split(W),l=h.length;if(this._cache&&this._cache.delete(L),!t)for(n in this.eventListeners)this._off(n);for(i=0;i<l;i++)if(s=h[i],r=s.split("."),a=r[0],o=r[1],a)this.eventListeners[a]&&this._off(a,o,e);else for(n in this.eventListeners)this._off(n,o,e);return this}dispatchEvent(t){const e={target:this,type:t.type,evt:t};return this.fire(t.type,e),this}addEventListener(t,e){return this.on(t,(function(t){e.call(this,t.evt)})),this}removeEventListener(t){return this.off(t),this}_delegate(t,e,i){const n=this;this.on(t,(function(t){const s=t.target.findAncestors(e,!0,n);for(let e=0;e<s.length;e++)(t=g.cloneObject(t)).currentTarget=s[e],i.call(s[e],t)}))}remove(){return this.isDragging()&&this.stopDrag(),E._dragElements.delete(this._id),this._remove(),this}_clearCaches(){this._clearSelfAndDescendantCache(I),this._clearSelfAndDescendantCache(D),this._clearSelfAndDescendantCache(O),this._clearSelfAndDescendantCache(Y),this._clearSelfAndDescendantCache(j),this._clearSelfAndDescendantCache(B)}_remove(){this._clearCaches();const t=this.getParent();t&&t.children&&(t.children.splice(this.index,1),t._setChildrenIndices(),this.parent=null)}destroy(){return this.remove(),this.clearCache(),this}getAttr(t){const e="get"+g._capitalize(t);return g._isFunction(this[e])?this[e]():this.attrs[t]}getAncestors(){let t=this.getParent(),e=[];for(;t;)e.push(t),t=t.getParent();return e}getAttrs(){return this.attrs||{}}setAttrs(t){return this._batchTransformChanges((()=>{let e,i;if(!t)return this;for(e in t)"children"!==e&&(i="set"+g._capitalize(e),g._isFunction(this[i])?this[i](t[e]):this._setAttr(e,t[e]))})),this}isListening(){return this._getCache(B,this._isListening)}_isListening(t){if(!this.listening())return!1;const e=this.getParent();return!e||e===t||this===t||e._isListening(t)}isVisible(){return this._getCache(j,this._isVisible)}_isVisible(t){if(!this.visible())return!1;const e=this.getParent();return!e||e===t||this===t||e._isVisible(t)}shouldDrawHit(t,e=!1){if(t)return this._isVisible(t)&&this._isListening(t);const n=this.getLayer();let s=!1;E._dragElements.forEach((t=>{"dragging"===t.dragStatus&&("Stage"===t.node.nodeType||t.node.getLayer()===n)&&(s=!0)}));const r=!e&&!i.hitOnDragEnabled&&(s||i.isTransforming());return this.isListening()&&this.isVisible()&&!r}show(){return this.visible(!0),this}hide(){return this.visible(!1),this}getZIndex(){return this.index||0}getAbsoluteZIndex(){let t,e,i,n,s=this.getDepth(),r=this,a=0;const o=this.getStage();return"Stage"!==r.nodeType&&o&&function o(h){for(t=[],e=h.length,i=0;i<e;i++)n=h[i],a++,n.nodeType!==z&&(t=t.concat(n.getChildren().slice())),n._id===r._id&&(i=e);t.length>0&&t[0].getDepth()<=s&&o(t)}(o.getChildren()),a}getDepth(){let t=0,e=this.parent;for(;e;)t++,e=e.parent;return t}_batchTransformChanges(t){this._batchingTransformChange=!0,t(),this._batchingTransformChange=!1,this._needClearTransformCache&&(this._clearCache(X),this._clearSelfAndDescendantCache(I)),this._needClearTransformCache=!1}setPosition(t){return this._batchTransformChanges((()=>{this.x(t.x),this.y(t.y)})),this}getPosition(){return{x:this.x(),y:this.y()}}getRelativePointerPosition(){const t=this.getStage();if(!t)return null;const e=t.getPointerPosition();if(!e)return null;const i=this.getAbsoluteTransform().copy();return i.invert(),i.point(e)}getAbsolutePosition(t){let e=!1,i=this.parent;for(;i;){if(i.isCached()){e=!0;break}i=i.parent}e&&!t&&(t=!0);const n=this.getAbsoluteTransform(t).getMatrix(),r=new s,a=this.offset();return r.m=n.slice(),r.translate(a.x,a.y),r.getTranslation()}setAbsolutePosition(t){const{x:e,y:i,...n}=this._clearTransform();this.attrs.x=e,this.attrs.y=i,this._clearCache(X);const s=this._getAbsoluteTransform().copy();return s.invert(),s.translate(t.x,t.y),t={x:this.attrs.x+s.getTranslation().x,y:this.attrs.y+s.getTranslation().y},this._setTransform(n),this.setPosition({x:t.x,y:t.y}),this._clearCache(X),this._clearSelfAndDescendantCache(I),this}_setTransform(t){let e;for(e in t)this.attrs[e]=t[e]}_clearTransform(){const t={x:this.x(),y:this.y(),rotation:this.rotation(),scaleX:this.scaleX(),scaleY:this.scaleY(),offsetX:this.offsetX(),offsetY:this.offsetY(),skewX:this.skewX(),skewY:this.skewY()};return this.attrs.x=0,this.attrs.y=0,this.attrs.rotation=0,this.attrs.scaleX=1,this.attrs.scaleY=1,this.attrs.offsetX=0,this.attrs.offsetY=0,this.attrs.skewX=0,this.attrs.skewY=0,t}move(t){let e=t.x,i=t.y,n=this.x(),s=this.y();return void 0!==e&&(n+=e),void 0!==i&&(s+=i),this.setPosition({x:n,y:s}),this}_eachAncestorReverse(t,e){let i,n,s=[],r=this.getParent();if(!e||e._id!==this._id){for(s.unshift(this);r&&(!e||r._id!==e._id);)s.unshift(r),r=r.parent;for(i=s.length,n=0;n<i;n++)t(s[n])}}rotate(t){return this.rotation(this.rotation()+t),this}moveToTop(){if(!this.parent)return g.warn("Node has no parent. moveToTop function is ignored."),!1;const t=this.index;return t<this.parent.getChildren().length-1&&(this.parent.children.splice(t,1),this.parent.children.push(this),this.parent._setChildrenIndices(),!0)}moveUp(){if(!this.parent)return g.warn("Node has no parent. moveUp function is ignored."),!1;const t=this.index;return t<this.parent.getChildren().length-1&&(this.parent.children.splice(t,1),this.parent.children.splice(t+1,0,this),this.parent._setChildrenIndices(),!0)}moveDown(){if(!this.parent)return g.warn("Node has no parent. moveDown function is ignored."),!1;const t=this.index;return t>0&&(this.parent.children.splice(t,1),this.parent.children.splice(t-1,0,this),this.parent._setChildrenIndices(),!0)}moveToBottom(){if(!this.parent)return g.warn("Node has no parent. moveToBottom function is ignored."),!1;const t=this.index;return t>0&&(this.parent.children.splice(t,1),this.parent.children.unshift(this),this.parent._setChildrenIndices(),!0)}setZIndex(t){if(!this.parent)return g.warn("Node has no parent. zIndex parameter is ignored."),this;(t<0||t>=this.parent.children.length)&&g.warn("Unexpected value "+t+" for zIndex property. zIndex is just index of a node in children of its parent. Expected value is from 0 to "+(this.parent.children.length-1)+".");const e=this.index;return this.parent.children.splice(e,1),this.parent.children.splice(t,0,this),this.parent._setChildrenIndices(),this}getAbsoluteOpacity(){return this._getCache(D,this._getAbsoluteOpacity)}_getAbsoluteOpacity(){let t=this.opacity();const e=this.getParent();return e&&!e._isUnderCache&&(t*=e.getAbsoluteOpacity()),t}moveTo(t){return this.getParent()!==t&&(this._remove(),t.add(this)),this}toObject(){let t,e,i,n,s,r=this.getAttrs();const a={attrs:{},className:this.getClassName()};for(t in r)e=r[t],s=g.isObject(e)&&!g._isPlainObject(e)&&!g._isArray(e),s||(i="function"==typeof this[t]&&this[t],delete r[t],n=i?i.call(this):null,r[t]=e,n!==e&&(a.attrs[t]=e));return g._prepareToStringify(a)}toJSON(){return JSON.stringify(this.toObject())}getParent(){return this.parent}findAncestors(t,e,i){const n=[];e&&this._isMatch(t)&&n.push(this);let s=this.parent;for(;s;){if(s===i)return n;s._isMatch(t)&&n.push(s),s=s.parent}return n}isAncestorOf(t){return!1}findAncestor(t,e,i){return this.findAncestors(t,e,i)[0]}_isMatch(t){if(!t)return!1;if("function"==typeof t)return t(this);let e,i,n=t.replace(/ /g,"").split(","),s=n.length;for(e=0;e<s;e++)if(i=n[e],g.isValidSelector(i)||(g.warn('Selector "'+i+'" is invalid. Allowed selectors examples are "#foo", ".bar" or "Group".'),g.warn('If you have a custom shape with such className, please change it to start with upper letter like "Triangle".'),g.warn("Konva is awesome, right?")),"#"===i.charAt(0)){if(this.id()===i.slice(1))return!0}else if("."===i.charAt(0)){if(this.hasName(i.slice(1)))return!0}else if(this.className===i||this.nodeType===i)return!0;return!1}getLayer(){const t=this.getParent();return t?t.getLayer():null}getStage(){return this._getCache(Y,this._getStage)}_getStage(){const t=this.getParent();return t?t.getStage():null}fire(t,e={},i){return e.target=e.target||this,i?this._fireAndBubble(t,e):this._fire(t,e),this}getAbsoluteTransform(t){return t?this._getAbsoluteTransform(t):this._getCache(I,this._getAbsoluteTransform)}_getAbsoluteTransform(t){let e;if(t)return e=new s,this._eachAncestorReverse((function(t){const i=t.transformsEnabled();"all"===i?e.multiply(t.getTransform()):"position"===i&&e.translate(t.x()-t.offsetX(),t.y()-t.offsetY())}),t),e;{e=this._cache.get(I)||new s,this.parent?this.parent.getAbsoluteTransform().copyInto(e):e.reset();const t=this.transformsEnabled();if("all"===t)e.multiply(this.getTransform());else if("position"===t){const t=this.attrs.x||0,i=this.attrs.y||0,n=this.attrs.offsetX||0,s=this.attrs.offsetY||0;e.translate(t-n,i-s)}return e.dirty=!1,e}}getAbsoluteScale(t){let e=this;for(;e;)e._isUnderCache&&(t=e),e=e.getParent();const i=this.getAbsoluteTransform(t).decompose();return{x:i.scaleX,y:i.scaleY}}getAbsoluteRotation(){return this.getAbsoluteTransform().decompose().rotation}getTransform(){return this._getCache(X,this._getTransform)}_getTransform(){var t,e;const n=this._cache.get(X)||new s;n.reset();const r=this.x(),a=this.y(),o=i.getAngle(this.rotation()),h=null!==(t=this.attrs.scaleX)&&void 0!==t?t:1,l=null!==(e=this.attrs.scaleY)&&void 0!==e?e:1,d=this.attrs.skewX||0,c=this.attrs.skewY||0,g=this.attrs.offsetX||0,u=this.attrs.offsetY||0;return 0===r&&0===a||n.translate(r,a),0!==o&&n.rotate(o),0===d&&0===c||n.skew(d,c),1===h&&1===l||n.scale(h,l),0===g&&0===u||n.translate(-1*g,-1*u),n.dirty=!1,n}clone(t){let e,i,n,s,r,a=g.cloneObject(this.attrs);for(e in t)a[e]=t[e];const o=new this.constructor(a);for(e in this.eventListeners)for(i=this.eventListeners[e],n=i.length,s=0;s<n;s++)r=i[s],r.name.indexOf("konva")<0&&(o.eventListeners[e]||(o.eventListeners[e]=[]),o.eventListeners[e].push(r));return o}_toKonvaCanvas(t){t=t||{};const e=this.getClientRect(),i=this.getStage(),n=void 0!==t.x?t.x:Math.floor(e.x),s=void 0!==t.y?t.y:Math.floor(e.y),r=t.pixelRatio||1,a=new G({width:t.width||Math.ceil(e.width)||(i?i.width():0),height:t.height||Math.ceil(e.height)||(i?i.height():0),pixelRatio:r}),o=a.getContext(),h=new G({width:a.width/a.pixelRatio+Math.abs(n),height:a.height/a.pixelRatio+Math.abs(s),pixelRatio:a.pixelRatio});return!1===t.imageSmoothingEnabled&&(o._context.imageSmoothingEnabled=!1),o.save(),(n||s)&&o.translate(-1*n,-1*s),this.drawScene(a,void 0,h),o.restore(),a}toCanvas(t){return this._toKonvaCanvas(t)._canvas}toDataURL(t){const e=(t=t||{}).mimeType||null,i=t.quality||null,n=this._toKonvaCanvas(t).toDataURL(e,i);return t.callback&&t.callback(n),n}toImage(t){return new Promise(((e,i)=>{try{const i=null==t?void 0:t.callback;i&&delete t.callback,g._urlToImage(this.toDataURL(t),(function(t){e(t),null==i||i(t)}))}catch(t){i(t)}}))}toBlob(t){return new Promise(((e,i)=>{try{const i=null==t?void 0:t.callback;i&&delete t.callback,this.toCanvas(t).toBlob((t=>{e(t),null==i||i(t)}),null==t?void 0:t.mimeType,null==t?void 0:t.quality)}catch(t){i(t)}}))}setSize(t){return this.width(t.width),this.height(t.height),this}getSize(){return{width:this.width(),height:this.height()}}getClassName(){return this.className||this.nodeType}getType(){return this.nodeType}getDragDistance(){return void 0!==this.attrs.dragDistance?this.attrs.dragDistance:this.parent?this.parent.getDragDistance():i.dragDistance}_off(t,e,i){let n,s,r,a=this.eventListeners[t];for(n=0;n<a.length;n++)if(s=a[n].name,r=a[n].handler,!("konva"===s&&"konva"!==e||e&&s!==e||i&&i!==r)){if(a.splice(n,1),0===a.length){delete this.eventListeners[t];break}n--}}_fireChangeEvent(t,e,i){this._fire(t+"Change",{oldVal:e,newVal:i})}addName(t){if(!this.hasName(t)){const e=this.name(),i=e?e+" "+t:t;this.name(i)}return this}hasName(t){if(!t)return!1;const e=this.name();if(!e)return!1;return-1!==(e||"").split(/\s/g).indexOf(t)}removeName(t){const e=(this.name()||"").split(/\s/g),i=e.indexOf(t);return-1!==i&&(e.splice(i,1),this.name(e.join(" "))),this}setAttr(t,e){const i=this["set"+g._capitalize(t)];return g._isFunction(i)?i.call(this,e):this._setAttr(t,e),this}_requestDraw(){if(i.autoDrawEnabled){const t=this.getLayer()||this.getStage();null==t||t.batchDraw()}}_setAttr(t,e){const i=this.attrs[t];(i!==e||g.isObject(e))&&(null==e?delete this.attrs[t]:this.attrs[t]=e,this._shouldFireChangeEvents&&this._fireChangeEvent(t,i,e),this._requestDraw())}_setComponentAttr(t,e,i){let n;void 0!==i&&(n=this.attrs[t],n||(this.attrs[t]=this.getAttr(t)),this.attrs[t][e]=i,this._fireChangeEvent(t,n,i))}_fireAndBubble(t,e,i){e&&this.nodeType===z&&(e.target=this);if(!((t===N||t===H)&&(i&&(this===i||this.isAncestorOf&&this.isAncestorOf(i))||"Stage"===this.nodeType&&!i))){this._fire(t,e);const n=(t===N||t===H)&&i&&i.isAncestorOf&&i.isAncestorOf(this)&&!i.isAncestorOf(this.parent);(e&&!e.cancelBubble||!e)&&this.parent&&this.parent.isListening()&&!n&&(i&&i.parent?this._fireAndBubble.call(this.parent,t,e,i):this._fireAndBubble.call(this.parent,t,e))}}_getProtoListeners(t){var e,i,n;const s=null!==(e=this._cache.get(L))&&void 0!==e?e:{};let r=null==s?void 0:s[t];if(void 0===r){r=[];let e=Object.getPrototypeOf(this);for(;e;){const s=null!==(n=null===(i=e.eventListeners)||void 0===i?void 0:i[t])&&void 0!==n?n:[];r.push(...s),e=Object.getPrototypeOf(e)}s[t]=r,this._cache.set(L,s)}return r}_fire(t,e){(e=e||{}).currentTarget=this,e.type=t;const i=this._getProtoListeners(t);if(i)for(var n=0;n<i.length;n++)i[n].handler.call(this,e);const s=this.eventListeners[t];if(s)for(n=0;n<s.length;n++)s[n].handler.call(this,e)}draw(){return this.drawScene(),this.drawHit(),this}_createDragElement(t){const e=t?t.pointerId:void 0,i=this.getStage(),n=this.getAbsolutePosition();if(!i)return;const s=i._getPointerById(e)||i._changedPointerPositions[0]||n;E._dragElements.set(this._id,{node:this,startPointerPos:s,offset:{x:s.x-n.x,y:s.y-n.y},dragStatus:"ready",pointerId:e})}startDrag(t,e=!0){E._dragElements.has(this._id)||this._createDragElement(t);E._dragElements.get(this._id).dragStatus="dragging",this.fire("dragstart",{type:"dragstart",target:this,evt:t&&t.evt},e)}_setDragPosition(t,e){const i=this.getStage()._getPointerById(e.pointerId);if(!i)return;let n={x:i.x-e.offset.x,y:i.y-e.offset.y};const s=this.dragBoundFunc();if(void 0!==s){const e=s.call(this,n,t);e?n=e:g.warn("dragBoundFunc did not return any value. That is unexpected behavior. You must return new absolute position from dragBoundFunc.")}this._lastPos&&this._lastPos.x===n.x&&this._lastPos.y===n.y||(this.setAbsolutePosition(n),this._requestDraw()),this._lastPos=n}stopDrag(t){const e=E._dragElements.get(this._id);e&&(e.dragStatus="stopped"),E._endDragBefore(t),E._endDragAfter(t)}setDraggable(t){this._setAttr("draggable",t),this._dragChange()}isDragging(){const t=E._dragElements.get(this._id);return!!t&&"dragging"===t.dragStatus}_listenDrag(){this._dragCleanup(),this.on("mousedown.konva touchstart.konva",(function(t){if(!(!(void 0!==t.evt.button)||i.dragButtons.indexOf(t.evt.button)>=0))return;if(this.isDragging())return;let e=!1;E._dragElements.forEach((t=>{this.isAncestorOf(t.node)&&(e=!0)})),e||this._createDragElement(t)}))}_dragChange(){if(this.attrs.draggable)this._listenDrag();else{this._dragCleanup();if(!this.getStage())return;const t=E._dragElements.get(this._id),e=t&&"dragging"===t.dragStatus,i=t&&"ready"===t.dragStatus;e?this.stopDrag():i&&E._dragElements.delete(this._id)}}_dragCleanup(){this.off("mousedown.konva"),this.off("touchstart.konva")}isClientRectOnScreen(t={x:0,y:0}){const e=this.getStage();if(!e)return!1;const i={x:-t.x,y:-t.y,width:e.width()+2*t.x,height:e.height()+2*t.y};return g.haveIntersection(i,this.getClientRect())}static create(t,e){return g._isString(t)&&(t=JSON.parse(t)),this._createNode(t,e)}static _createNode(t,e){let n,s,r,a=V.prototype.getClassName.call(t),o=t.children;e&&(t.attrs.container=e),i[a]||(g.warn('Can not find a node with class name "'+a+'". Fallback to "Shape".'),a="Shape");if(n=new(0,i[a])(t.attrs),o)for(s=o.length,r=0;r<s;r++)n.add(V._createNode(o[r]));return n}}V.prototype.nodeType="Node",V.prototype._attrsAffectingSize=[],V.prototype.eventListeners={},V.prototype.on.call(V.prototype,q,(function(){this._batchingTransformChange?this._needClearTransformCache=!0:(this._clearCache(X),this._clearSelfAndDescenda