signature_pad - npm Package Compare versions

Comparing version 4.0.7 to 4.0.8

dist/signature_pad.js

 /*!
- * Signature Pad v4.0.7 | https://github.com/szimek/signature_pad
+ * Signature Pad v4.0.8 | https://github.com/szimek/signature_pad
  * (c) 2022 Szymon Nowak | Released under the MIT license
@@ -550,3 +550,3 @@ */
             ' xmlns:xlink="http://www.w3.org/1999/xlink"' +
-            ` viewBox="${minX} ${minY} ${this.canvas.width} ${this.canvas.height}"` +
+            ` viewBox="${minX} ${minY} ${maxX} ${maxY}"` +
             ` width="${maxX}"` +
@@ -553,0 +553,0 @@ ` height="${maxY}"` +

dist/signature_pad.min.js

 /*!
- * Signature Pad v4.0.7 | https://github.com/szimek/signature_pad
+ * Signature Pad v4.0.8 | https://github.com/szimek/signature_pad
  * (c) 2022 Szymon Nowak | Released under the MIT license
  */
-class t{constructor(t,e,i,s){if(isNaN(t)||isNaN(e))throw new Error(`Point is invalid: (${t}, ${e})`);this.x=+t,this.y=+e,this.pressure=i||0,this.time=s||Date.now()}distanceTo(t){return Math.sqrt(Math.pow(this.x-t.x,2)+Math.pow(this.y-t.y,2))}equals(t){return this.x===t.x&&this.y===t.y&&this.pressure===t.pressure&&this.time===t.time}velocityFrom(t){return this.time!==t.time?this.distanceTo(t)/(this.time-t.time):0}}class e{constructor(t,e,i,s,n,o){this.startPoint=t,this.control2=e,this.control1=i,this.endPoint=s,this.startWidth=n,this.endWidth=o}static fromPoints(t,i){const s=this.calculateControlPoints(t[0],t[1],t[2]).c2,n=this.calculateControlPoints(t[1],t[2],t[3]).c1;return new e(t[1],s,n,t[2],i.start,i.end)}static calculateControlPoints(e,i,s){const n=e.x-i.x,o=e.y-i.y,h=i.x-s.x,a=i.y-s.y,r=(e.x+i.x)/2,d=(e.y+i.y)/2,c=(i.x+s.x)/2,l=(i.y+s.y)/2,u=Math.sqrt(n*n+o*o),v=Math.sqrt(h*h+a*a),m=v/(u+v),_=c+(r-c)*m,p=l+(d-l)*m,g=i.x-_,w=i.y-p;return{c1:new t(r+g,d+w),c2:new t(c+g,l+w)}}length(){let t,e,i=0;for(let s=0;s<=10;s+=1){const n=s/10,o=this.point(n,this.startPoint.x,this.control1.x,this.control2.x,this.endPoint.x),h=this.point(n,this.startPoint.y,this.control1.y,this.control2.y,this.endPoint.y);if(s>0){const s=o-t,n=h-e;i+=Math.sqrt(s*s+n*n)}t=o,e=h}return i}point(t,e,i,s,n){return e*(1-t)*(1-t)*(1-t)+3*i*(1-t)*(1-t)*t+3*s*(1-t)*t*t+n*t*t*t}}class i extends class{constructor(){try{this._et=new EventTarget}catch(t){this._et=document}}addEventListener(t,e,i){this._et.addEventListener(t,e,i)}dispatchEvent(t){return this._et.dispatchEvent(t)}removeEventListener(t,e,i){this._et.removeEventListener(t,e,i)}}{constructor(t,e={}){super(),this.canvas=t,this._handleMouseDown=t=>{1===t.buttons&&(this._drawningStroke=!0,this._strokeBegin(t))},this._handleMouseMove=t=>{this._drawningStroke&&this._strokeMoveUpdate(t)},this._handleMouseUp=t=>{1===t.buttons&&this._drawningStroke&&(this._drawningStroke=!1,this._strokeEnd(t))},this._handleTouchStart=t=>{if(t.cancelable&&t.preventDefault(),1===t.targetTouches.length){const e=t.changedTouches[0];this._strokeBegin(e)}},this._handleTouchMove=t=>{t.cancelable&&t.preventDefault();const e=t.targetTouches[0];this._strokeMoveUpdate(e)},this._handleTouchEnd=t=>{if(t.target===this.canvas){t.cancelable&&t.preventDefault();const e=t.changedTouches[0];this._strokeEnd(e)}},this._handlePointerStart=t=>{this._drawningStroke=!0,t.preventDefault(),this._strokeBegin(t)},this._handlePointerMove=t=>{this._drawningStroke&&(t.preventDefault(),this._strokeMoveUpdate(t))},this._handlePointerEnd=t=>{this._drawningStroke&&(t.preventDefault(),this._drawningStroke=!1,this._strokeEnd(t))},this.velocityFilterWeight=e.velocityFilterWeight||.7,this.minWidth=e.minWidth||.5,this.maxWidth=e.maxWidth||2.5,this.throttle="throttle"in e?e.throttle:16,this.minDistance="minDistance"in e?e.minDistance:5,this.dotSize=e.dotSize||0,this.penColor=e.penColor||"black",this.backgroundColor=e.backgroundColor||"rgba(0,0,0,0)",this._strokeMoveUpdate=this.throttle?function(t,e=250){let i,s,n,o=0,h=null;const a=()=>{o=Date.now(),h=null,i=t.apply(s,n),h||(s=null,n=[])};return function(...r){const d=Date.now(),c=e-(d-o);return s=this,n=r,c<=0||c>e?(h&&(clearTimeout(h),h=null),o=d,i=t.apply(s,n),h||(s=null,n=[])):h||(h=window.setTimeout(a,c)),i}}(i.prototype._strokeUpdate,this.throttle):i.prototype._strokeUpdate,this._ctx=t.getContext("2d"),this.clear(),this.on()}clear(){const{_ctx:t,canvas:e}=this;t.fillStyle=this.backgroundColor,t.clearRect(0,0,e.width,e.height),t.fillRect(0,0,e.width,e.height),this._data=[],this._reset(),this._isEmpty=!0}fromDataURL(t,e={}){return new Promise(((i,s)=>{const n=new Image,o=e.ratio||window.devicePixelRatio||1,h=e.width||this.canvas.width/o,a=e.height||this.canvas.height/o,r=e.xOffset||0,d=e.yOffset||0;this._reset(),n.onload=()=>{this._ctx.drawImage(n,r,d,h,a),i()},n.onerror=t=>{s(t)},n.crossOrigin="anonymous",n.src=t,this._isEmpty=!1}))}toDataURL(t="image/png",e){return"image/svg+xml"===t?this._toSVG():this.canvas.toDataURL(t,e)}on(){this.canvas.style.touchAction="none",this.canvas.style.msTouchAction="none",this.canvas.style.userSelect="none";const t=/Macintosh/.test(navigator.userAgent)&&"ontouchstart"in document;window.PointerEvent&&!t?this._handlePointerEvents():(this._handleMouseEvents(),"ontouchstart"in window&&this._handleTouchEvents())}off(){this.canvas.style.touchAction="auto",this.canvas.style.msTouchAction="auto",this.canvas.style.userSelect="auto",this.canvas.removeEventListener("pointerdown",this._handlePointerStart),this.canvas.removeEventListener("pointermove",this._handlePointerMove),this.canvas.ownerDocument.removeEventListener("pointerup",this._handlePointerEnd),this.canvas.removeEventListener("mousedown",this._handleMouseDown),this.canvas.removeEventListener("mousemove",this._handleMouseMove),this.canvas.ownerDocument.removeEventListener("mouseup",this._handleMouseUp),this.canvas.removeEventListener("touchstart",this._handleTouchStart),this.canvas.removeEventListener("touchmove",this._handleTouchMove),this.canvas.removeEventListener("touchend",this._handleTouchEnd)}isEmpty(){return this._isEmpty}fromData(t,{clear:e=!0}={}){e&&this.clear(),this._fromData(t,this._drawCurve.bind(this),this._drawDot.bind(this)),this._data=this._data.concat(t)}toData(){return this._data}_strokeBegin(t){this.dispatchEvent(new CustomEvent("beginStroke",{detail:t}));const e={dotSize:this.dotSize,minWidth:this.minWidth,maxWidth:this.maxWidth,penColor:this.penColor,points:[]};this._data.push(e),this._reset(),this._strokeUpdate(t)}_strokeUpdate(t){if(0===this._data.length)return void this._strokeBegin(t);this.dispatchEvent(new CustomEvent("beforeUpdateStroke",{detail:t}));const e=t.clientX,i=t.clientY,s=void 0!==t.pressure?t.pressure:void 0!==t.force?t.force:0,n=this._createPoint(e,i,s),o=this._data[this._data.length-1],h=o.points,a=h.length>0&&h[h.length-1],r=!!a&&n.distanceTo(a)<=this.minDistance,{penColor:d,dotSize:c,minWidth:l,maxWidth:u}=o;if(!a||!a||!r){const t=this._addPoint(n);a?t&&this._drawCurve(t,{penColor:d,dotSize:c,minWidth:l,maxWidth:u}):this._drawDot(n,{penColor:d,dotSize:c,minWidth:l,maxWidth:u}),h.push({time:n.time,x:n.x,y:n.y,pressure:n.pressure})}this.dispatchEvent(new CustomEvent("afterUpdateStroke",{detail:t}))}_strokeEnd(t){this._strokeUpdate(t),this.dispatchEvent(new CustomEvent("endStroke",{detail:t}))}_handlePointerEvents(){this._drawningStroke=!1,this.canvas.addEventListener("pointerdown",this._handlePointerStart),this.canvas.addEventListener("pointermove",this._handlePointerMove),this.canvas.ownerDocument.addEventListener("pointerup",this._handlePointerEnd)}_handleMouseEvents(){this._drawningStroke=!1,this.canvas.addEventListener("mousedown",this._handleMouseDown),this.canvas.addEventListener("mousemove",this._handleMouseMove),this.canvas.ownerDocument.addEventListener("mouseup",this._handleMouseUp)}_handleTouchEvents(){this.canvas.addEventListener("touchstart",this._handleTouchStart),this.canvas.addEventListener("touchmove",this._handleTouchMove),this.canvas.addEventListener("touchend",this._handleTouchEnd)}_reset(){this._lastPoints=[],this._lastVelocity=0,this._lastWidth=(this.minWidth+this.maxWidth)/2,this._ctx.fillStyle=this.penColor}_createPoint(e,i,s){const n=this.canvas.getBoundingClientRect();return new t(e-n.left,i-n.top,s,(new Date).getTime())}_addPoint(t){const{_lastPoints:i}=this;if(i.push(t),i.length>2){3===i.length&&i.unshift(i[0]);const t=this._calculateCurveWidths(i[1],i[2]),s=e.fromPoints(i,t);return i.shift(),s}return null}_calculateCurveWidths(t,e){const i=this.velocityFilterWeight*e.velocityFrom(t)+(1-this.velocityFilterWeight)*this._lastVelocity,s=this._strokeWidth(i),n={end:s,start:this._lastWidth};return this._lastVelocity=i,this._lastWidth=s,n}_strokeWidth(t){return Math.max(this.maxWidth/(t+1),this.minWidth)}_drawCurveSegment(t,e,i){const s=this._ctx;s.moveTo(t,e),s.arc(t,e,i,0,2*Math.PI,!1),this._isEmpty=!1}_drawCurve(t,e){const i=this._ctx,s=t.endWidth-t.startWidth,n=2*Math.ceil(t.length());i.beginPath(),i.fillStyle=e.penColor;for(let i=0;i<n;i+=1){const o=i/n,h=o*o,a=h*o,r=1-o,d=r*r,c=d*r;let l=c*t.startPoint.x;l+=3*d*o*t.control1.x,l+=3*r*h*t.control2.x,l+=a*t.endPoint.x;let u=c*t.startPoint.y;u+=3*d*o*t.control1.y,u+=3*r*h*t.control2.y,u+=a*t.endPoint.y;const v=Math.min(t.startWidth+a*s,e.maxWidth);this._drawCurveSegment(l,u,v)}i.closePath(),i.fill()}_drawDot(t,e){const i=this._ctx,s=e.dotSize>0?e.dotSize:(e.minWidth+e.maxWidth)/2;i.beginPath(),this._drawCurveSegment(t.x,t.y,s),i.closePath(),i.fillStyle=e.penColor,i.fill()}_fromData(e,i,s){for(const n of e){const{penColor:e,dotSize:o,minWidth:h,maxWidth:a,points:r}=n;if(r.length>1)for(let s=0;s<r.length;s+=1){const n=r[s],d=new t(n.x,n.y,n.pressure,n.time);this.penColor=e,0===s&&this._reset();const c=this._addPoint(d);c&&i(c,{penColor:e,dotSize:o,minWidth:h,maxWidth:a})}else this._reset(),s(r[0],{penColor:e,dotSize:o,minWidth:h,maxWidth:a})}}_toSVG(){const t=this._data,e=Math.max(window.devicePixelRatio||1,1),i=this.canvas.width/e,s=this.canvas.height/e,n=document.createElementNS("http://www.w3.org/2000/svg","svg");n.setAttribute("width",this.canvas.width.toString()),n.setAttribute("height",this.canvas.height.toString()),this._fromData(t,((t,{penColor:e})=>{const i=document.createElement("path");if(!(isNaN(t.control1.x)||isNaN(t.control1.y)||isNaN(t.control2.x)||isNaN(t.control2.y))){const s=`M ${t.startPoint.x.toFixed(3)},${t.startPoint.y.toFixed(3)} C ${t.control1.x.toFixed(3)},${t.control1.y.toFixed(3)} ${t.control2.x.toFixed(3)},${t.control2.y.toFixed(3)} ${t.endPoint.x.toFixed(3)},${t.endPoint.y.toFixed(3)}`;i.setAttribute("d",s),i.setAttribute("stroke-width",(2.25*t.endWidth).toFixed(3)),i.setAttribute("stroke",e),i.setAttribute("fill","none"),i.setAttribute("stroke-linecap","round"),n.appendChild(i)}}),((t,{penColor:e,dotSize:i,minWidth:s,maxWidth:o})=>{const h=document.createElement("circle"),a=i>0?i:(s+o)/2;h.setAttribute("r",a.toString()),h.setAttribute("cx",t.x.toString()),h.setAttribute("cy",t.y.toString()),h.setAttribute("fill",e),n.appendChild(h)}));const o=`<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 ${this.canvas.width} ${this.canvas.height}" width="${i}" height="${s}">`;let h=n.innerHTML;if(void 0===h){const t=document.createElement("dummy"),e=n.childNodes;t.innerHTML="";for(let i=0;i<e.length;i+=1)t.appendChild(e[i].cloneNode(!0));h=t.innerHTML}return"data:image/svg+xml;base64,"+btoa(o+h+"</svg>")}}export{i as default};
+class t{constructor(t,e,i,s){if(isNaN(t)||isNaN(e))throw new Error(`Point is invalid: (${t}, ${e})`);this.x=+t,this.y=+e,this.pressure=i||0,this.time=s||Date.now()}distanceTo(t){return Math.sqrt(Math.pow(this.x-t.x,2)+Math.pow(this.y-t.y,2))}equals(t){return this.x===t.x&&this.y===t.y&&this.pressure===t.pressure&&this.time===t.time}velocityFrom(t){return this.time!==t.time?this.distanceTo(t)/(this.time-t.time):0}}class e{constructor(t,e,i,s,n,o){this.startPoint=t,this.control2=e,this.control1=i,this.endPoint=s,this.startWidth=n,this.endWidth=o}static fromPoints(t,i){const s=this.calculateControlPoints(t[0],t[1],t[2]).c2,n=this.calculateControlPoints(t[1],t[2],t[3]).c1;return new e(t[1],s,n,t[2],i.start,i.end)}static calculateControlPoints(e,i,s){const n=e.x-i.x,o=e.y-i.y,h=i.x-s.x,r=i.y-s.y,a=(e.x+i.x)/2,d=(e.y+i.y)/2,c=(i.x+s.x)/2,l=(i.y+s.y)/2,u=Math.sqrt(n*n+o*o),v=Math.sqrt(h*h+r*r),m=v/(u+v),_=c+(a-c)*m,p=l+(d-l)*m,g=i.x-_,w=i.y-p;return{c1:new t(a+g,d+w),c2:new t(c+g,l+w)}}length(){let t,e,i=0;for(let s=0;s<=10;s+=1){const n=s/10,o=this.point(n,this.startPoint.x,this.control1.x,this.control2.x,this.endPoint.x),h=this.point(n,this.startPoint.y,this.control1.y,this.control2.y,this.endPoint.y);if(s>0){const s=o-t,n=h-e;i+=Math.sqrt(s*s+n*n)}t=o,e=h}return i}point(t,e,i,s,n){return e*(1-t)*(1-t)*(1-t)+3*i*(1-t)*(1-t)*t+3*s*(1-t)*t*t+n*t*t*t}}class i extends class{constructor(){try{this._et=new EventTarget}catch(t){this._et=document}}addEventListener(t,e,i){this._et.addEventListener(t,e,i)}dispatchEvent(t){return this._et.dispatchEvent(t)}removeEventListener(t,e,i){this._et.removeEventListener(t,e,i)}}{constructor(t,e={}){super(),this.canvas=t,this._handleMouseDown=t=>{1===t.buttons&&(this._drawningStroke=!0,this._strokeBegin(t))},this._handleMouseMove=t=>{this._drawningStroke&&this._strokeMoveUpdate(t)},this._handleMouseUp=t=>{1===t.buttons&&this._drawningStroke&&(this._drawningStroke=!1,this._strokeEnd(t))},this._handleTouchStart=t=>{if(t.cancelable&&t.preventDefault(),1===t.targetTouches.length){const e=t.changedTouches[0];this._strokeBegin(e)}},this._handleTouchMove=t=>{t.cancelable&&t.preventDefault();const e=t.targetTouches[0];this._strokeMoveUpdate(e)},this._handleTouchEnd=t=>{if(t.target===this.canvas){t.cancelable&&t.preventDefault();const e=t.changedTouches[0];this._strokeEnd(e)}},this._handlePointerStart=t=>{this._drawningStroke=!0,t.preventDefault(),this._strokeBegin(t)},this._handlePointerMove=t=>{this._drawningStroke&&(t.preventDefault(),this._strokeMoveUpdate(t))},this._handlePointerEnd=t=>{this._drawningStroke&&(t.preventDefault(),this._drawningStroke=!1,this._strokeEnd(t))},this.velocityFilterWeight=e.velocityFilterWeight||.7,this.minWidth=e.minWidth||.5,this.maxWidth=e.maxWidth||2.5,this.throttle="throttle"in e?e.throttle:16,this.minDistance="minDistance"in e?e.minDistance:5,this.dotSize=e.dotSize||0,this.penColor=e.penColor||"black",this.backgroundColor=e.backgroundColor||"rgba(0,0,0,0)",this._strokeMoveUpdate=this.throttle?function(t,e=250){let i,s,n,o=0,h=null;const r=()=>{o=Date.now(),h=null,i=t.apply(s,n),h||(s=null,n=[])};return function(...a){const d=Date.now(),c=e-(d-o);return s=this,n=a,c<=0||c>e?(h&&(clearTimeout(h),h=null),o=d,i=t.apply(s,n),h||(s=null,n=[])):h||(h=window.setTimeout(r,c)),i}}(i.prototype._strokeUpdate,this.throttle):i.prototype._strokeUpdate,this._ctx=t.getContext("2d"),this.clear(),this.on()}clear(){const{_ctx:t,canvas:e}=this;t.fillStyle=this.backgroundColor,t.clearRect(0,0,e.width,e.height),t.fillRect(0,0,e.width,e.height),this._data=[],this._reset(),this._isEmpty=!0}fromDataURL(t,e={}){return new Promise(((i,s)=>{const n=new Image,o=e.ratio||window.devicePixelRatio||1,h=e.width||this.canvas.width/o,r=e.height||this.canvas.height/o,a=e.xOffset||0,d=e.yOffset||0;this._reset(),n.onload=()=>{this._ctx.drawImage(n,a,d,h,r),i()},n.onerror=t=>{s(t)},n.crossOrigin="anonymous",n.src=t,this._isEmpty=!1}))}toDataURL(t="image/png",e){return"image/svg+xml"===t?this._toSVG():this.canvas.toDataURL(t,e)}on(){this.canvas.style.touchAction="none",this.canvas.style.msTouchAction="none",this.canvas.style.userSelect="none";const t=/Macintosh/.test(navigator.userAgent)&&"ontouchstart"in document;window.PointerEvent&&!t?this._handlePointerEvents():(this._handleMouseEvents(),"ontouchstart"in window&&this._handleTouchEvents())}off(){this.canvas.style.touchAction="auto",this.canvas.style.msTouchAction="auto",this.canvas.style.userSelect="auto",this.canvas.removeEventListener("pointerdown",this._handlePointerStart),this.canvas.removeEventListener("pointermove",this._handlePointerMove),this.canvas.ownerDocument.removeEventListener("pointerup",this._handlePointerEnd),this.canvas.removeEventListener("mousedown",this._handleMouseDown),this.canvas.removeEventListener("mousemove",this._handleMouseMove),this.canvas.ownerDocument.removeEventListener("mouseup",this._handleMouseUp),this.canvas.removeEventListener("touchstart",this._handleTouchStart),this.canvas.removeEventListener("touchmove",this._handleTouchMove),this.canvas.removeEventListener("touchend",this._handleTouchEnd)}isEmpty(){return this._isEmpty}fromData(t,{clear:e=!0}={}){e&&this.clear(),this._fromData(t,this._drawCurve.bind(this),this._drawDot.bind(this)),this._data=this._data.concat(t)}toData(){return this._data}_strokeBegin(t){this.dispatchEvent(new CustomEvent("beginStroke",{detail:t}));const e={dotSize:this.dotSize,minWidth:this.minWidth,maxWidth:this.maxWidth,penColor:this.penColor,points:[]};this._data.push(e),this._reset(),this._strokeUpdate(t)}_strokeUpdate(t){if(0===this._data.length)return void this._strokeBegin(t);this.dispatchEvent(new CustomEvent("beforeUpdateStroke",{detail:t}));const e=t.clientX,i=t.clientY,s=void 0!==t.pressure?t.pressure:void 0!==t.force?t.force:0,n=this._createPoint(e,i,s),o=this._data[this._data.length-1],h=o.points,r=h.length>0&&h[h.length-1],a=!!r&&n.distanceTo(r)<=this.minDistance,{penColor:d,dotSize:c,minWidth:l,maxWidth:u}=o;if(!r||!r||!a){const t=this._addPoint(n);r?t&&this._drawCurve(t,{penColor:d,dotSize:c,minWidth:l,maxWidth:u}):this._drawDot(n,{penColor:d,dotSize:c,minWidth:l,maxWidth:u}),h.push({time:n.time,x:n.x,y:n.y,pressure:n.pressure})}this.dispatchEvent(new CustomEvent("afterUpdateStroke",{detail:t}))}_strokeEnd(t){this._strokeUpdate(t),this.dispatchEvent(new CustomEvent("endStroke",{detail:t}))}_handlePointerEvents(){this._drawningStroke=!1,this.canvas.addEventListener("pointerdown",this._handlePointerStart),this.canvas.addEventListener("pointermove",this._handlePointerMove),this.canvas.ownerDocument.addEventListener("pointerup",this._handlePointerEnd)}_handleMouseEvents(){this._drawningStroke=!1,this.canvas.addEventListener("mousedown",this._handleMouseDown),this.canvas.addEventListener("mousemove",this._handleMouseMove),this.canvas.ownerDocument.addEventListener("mouseup",this._handleMouseUp)}_handleTouchEvents(){this.canvas.addEventListener("touchstart",this._handleTouchStart),this.canvas.addEventListener("touchmove",this._handleTouchMove),this.canvas.addEventListener("touchend",this._handleTouchEnd)}_reset(){this._lastPoints=[],this._lastVelocity=0,this._lastWidth=(this.minWidth+this.maxWidth)/2,this._ctx.fillStyle=this.penColor}_createPoint(e,i,s){const n=this.canvas.getBoundingClientRect();return new t(e-n.left,i-n.top,s,(new Date).getTime())}_addPoint(t){const{_lastPoints:i}=this;if(i.push(t),i.length>2){3===i.length&&i.unshift(i[0]);const t=this._calculateCurveWidths(i[1],i[2]),s=e.fromPoints(i,t);return i.shift(),s}return null}_calculateCurveWidths(t,e){const i=this.velocityFilterWeight*e.velocityFrom(t)+(1-this.velocityFilterWeight)*this._lastVelocity,s=this._strokeWidth(i),n={end:s,start:this._lastWidth};return this._lastVelocity=i,this._lastWidth=s,n}_strokeWidth(t){return Math.max(this.maxWidth/(t+1),this.minWidth)}_drawCurveSegment(t,e,i){const s=this._ctx;s.moveTo(t,e),s.arc(t,e,i,0,2*Math.PI,!1),this._isEmpty=!1}_drawCurve(t,e){const i=this._ctx,s=t.endWidth-t.startWidth,n=2*Math.ceil(t.length());i.beginPath(),i.fillStyle=e.penColor;for(let i=0;i<n;i+=1){const o=i/n,h=o*o,r=h*o,a=1-o,d=a*a,c=d*a;let l=c*t.startPoint.x;l+=3*d*o*t.control1.x,l+=3*a*h*t.control2.x,l+=r*t.endPoint.x;let u=c*t.startPoint.y;u+=3*d*o*t.control1.y,u+=3*a*h*t.control2.y,u+=r*t.endPoint.y;const v=Math.min(t.startWidth+r*s,e.maxWidth);this._drawCurveSegment(l,u,v)}i.closePath(),i.fill()}_drawDot(t,e){const i=this._ctx,s=e.dotSize>0?e.dotSize:(e.minWidth+e.maxWidth)/2;i.beginPath(),this._drawCurveSegment(t.x,t.y,s),i.closePath(),i.fillStyle=e.penColor,i.fill()}_fromData(e,i,s){for(const n of e){const{penColor:e,dotSize:o,minWidth:h,maxWidth:r,points:a}=n;if(a.length>1)for(let s=0;s<a.length;s+=1){const n=a[s],d=new t(n.x,n.y,n.pressure,n.time);this.penColor=e,0===s&&this._reset();const c=this._addPoint(d);c&&i(c,{penColor:e,dotSize:o,minWidth:h,maxWidth:r})}else this._reset(),s(a[0],{penColor:e,dotSize:o,minWidth:h,maxWidth:r})}}_toSVG(){const t=this._data,e=Math.max(window.devicePixelRatio||1,1),i=this.canvas.width/e,s=this.canvas.height/e,n=document.createElementNS("http://www.w3.org/2000/svg","svg");n.setAttribute("width",this.canvas.width.toString()),n.setAttribute("height",this.canvas.height.toString()),this._fromData(t,((t,{penColor:e})=>{const i=document.createElement("path");if(!(isNaN(t.control1.x)||isNaN(t.control1.y)||isNaN(t.control2.x)||isNaN(t.control2.y))){const s=`M ${t.startPoint.x.toFixed(3)},${t.startPoint.y.toFixed(3)} C ${t.control1.x.toFixed(3)},${t.control1.y.toFixed(3)} ${t.control2.x.toFixed(3)},${t.control2.y.toFixed(3)} ${t.endPoint.x.toFixed(3)},${t.endPoint.y.toFixed(3)}`;i.setAttribute("d",s),i.setAttribute("stroke-width",(2.25*t.endWidth).toFixed(3)),i.setAttribute("stroke",e),i.setAttribute("fill","none"),i.setAttribute("stroke-linecap","round"),n.appendChild(i)}}),((t,{penColor:e,dotSize:i,minWidth:s,maxWidth:o})=>{const h=document.createElement("circle"),r=i>0?i:(s+o)/2;h.setAttribute("r",r.toString()),h.setAttribute("cx",t.x.toString()),h.setAttribute("cy",t.y.toString()),h.setAttribute("fill",e),n.appendChild(h)}));const o=`<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 ${i} ${s}" width="${i}" height="${s}">`;let h=n.innerHTML;if(void 0===h){const t=document.createElement("dummy"),e=n.childNodes;t.innerHTML="";for(let i=0;i<e.length;i+=1)t.appendChild(e[i].cloneNode(!0));h=t.innerHTML}return"data:image/svg+xml;base64,"+btoa(o+h+"</svg>")}}export{i as default};
 //# sourceMappingURL=signature_pad.min.js.map

dist/signature_pad.umd.js

 /*!
- * Signature Pad v4.0.7 | https://github.com/szimek/signature_pad
+ * Signature Pad v4.0.8 | https://github.com/szimek/signature_pad
  * (c) 2022 Szymon Nowak | Released under the MIT license
@@ -556,3 +556,3 @@ */
                 ' xmlns:xlink="http://www.w3.org/1999/xlink"' +
-                ` viewBox="${minX} ${minY} ${this.canvas.width} ${this.canvas.height}"` +
+                ` viewBox="${minX} ${minY} ${maxX} ${maxY}"` +
                 ` width="${maxX}"` +
@@ -559,0 +559,0 @@ ` height="${maxY}"` +

dist/signature_pad.umd.min.js

 /*!
- * Signature Pad v4.0.7 | https://github.com/szimek/signature_pad
+ * Signature Pad v4.0.8 | https://github.com/szimek/signature_pad
  * (c) 2022 Szymon Nowak | Released under the MIT license
  */
-!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).SignaturePad=e()}(this,(function(){"use strict";class t{constructor(t,e,i,n){if(isNaN(t)||isNaN(e))throw new Error(`Point is invalid: (${t}, ${e})`);this.x=+t,this.y=+e,this.pressure=i||0,this.time=n||Date.now()}distanceTo(t){return Math.sqrt(Math.pow(this.x-t.x,2)+Math.pow(this.y-t.y,2))}equals(t){return this.x===t.x&&this.y===t.y&&this.pressure===t.pressure&&this.time===t.time}velocityFrom(t){return this.time!==t.time?this.distanceTo(t)/(this.time-t.time):0}}class e{constructor(t,e,i,n,s,o){this.startPoint=t,this.control2=e,this.control1=i,this.endPoint=n,this.startWidth=s,this.endWidth=o}static fromPoints(t,i){const n=this.calculateControlPoints(t[0],t[1],t[2]).c2,s=this.calculateControlPoints(t[1],t[2],t[3]).c1;return new e(t[1],n,s,t[2],i.start,i.end)}static calculateControlPoints(e,i,n){const s=e.x-i.x,o=e.y-i.y,h=i.x-n.x,a=i.y-n.y,r=(e.x+i.x)/2,d=(e.y+i.y)/2,c=(i.x+n.x)/2,l=(i.y+n.y)/2,u=Math.sqrt(s*s+o*o),v=Math.sqrt(h*h+a*a),m=v/(u+v),_=c+(r-c)*m,p=l+(d-l)*m,g=i.x-_,w=i.y-p;return{c1:new t(r+g,d+w),c2:new t(c+g,l+w)}}length(){let t,e,i=0;for(let n=0;n<=10;n+=1){const s=n/10,o=this.point(s,this.startPoint.x,this.control1.x,this.control2.x,this.endPoint.x),h=this.point(s,this.startPoint.y,this.control1.y,this.control2.y,this.endPoint.y);if(n>0){const n=o-t,s=h-e;i+=Math.sqrt(n*n+s*s)}t=o,e=h}return i}point(t,e,i,n,s){return e*(1-t)*(1-t)*(1-t)+3*i*(1-t)*(1-t)*t+3*n*(1-t)*t*t+s*t*t*t}}class i extends class{constructor(){try{this._et=new EventTarget}catch(t){this._et=document}}addEventListener(t,e,i){this._et.addEventListener(t,e,i)}dispatchEvent(t){return this._et.dispatchEvent(t)}removeEventListener(t,e,i){this._et.removeEventListener(t,e,i)}}{constructor(t,e={}){super(),this.canvas=t,this._handleMouseDown=t=>{1===t.buttons&&(this._drawningStroke=!0,this._strokeBegin(t))},this._handleMouseMove=t=>{this._drawningStroke&&this._strokeMoveUpdate(t)},this._handleMouseUp=t=>{1===t.buttons&&this._drawningStroke&&(this._drawningStroke=!1,this._strokeEnd(t))},this._handleTouchStart=t=>{if(t.cancelable&&t.preventDefault(),1===t.targetTouches.length){const e=t.changedTouches[0];this._strokeBegin(e)}},this._handleTouchMove=t=>{t.cancelable&&t.preventDefault();const e=t.targetTouches[0];this._strokeMoveUpdate(e)},this._handleTouchEnd=t=>{if(t.target===this.canvas){t.cancelable&&t.preventDefault();const e=t.changedTouches[0];this._strokeEnd(e)}},this._handlePointerStart=t=>{this._drawningStroke=!0,t.preventDefault(),this._strokeBegin(t)},this._handlePointerMove=t=>{this._drawningStroke&&(t.preventDefault(),this._strokeMoveUpdate(t))},this._handlePointerEnd=t=>{this._drawningStroke&&(t.preventDefault(),this._drawningStroke=!1,this._strokeEnd(t))},this.velocityFilterWeight=e.velocityFilterWeight||.7,this.minWidth=e.minWidth||.5,this.maxWidth=e.maxWidth||2.5,this.throttle="throttle"in e?e.throttle:16,this.minDistance="minDistance"in e?e.minDistance:5,this.dotSize=e.dotSize||0,this.penColor=e.penColor||"black",this.backgroundColor=e.backgroundColor||"rgba(0,0,0,0)",this._strokeMoveUpdate=this.throttle?function(t,e=250){let i,n,s,o=0,h=null;const a=()=>{o=Date.now(),h=null,i=t.apply(n,s),h||(n=null,s=[])};return function(...r){const d=Date.now(),c=e-(d-o);return n=this,s=r,c<=0||c>e?(h&&(clearTimeout(h),h=null),o=d,i=t.apply(n,s),h||(n=null,s=[])):h||(h=window.setTimeout(a,c)),i}}(i.prototype._strokeUpdate,this.throttle):i.prototype._strokeUpdate,this._ctx=t.getContext("2d"),this.clear(),this.on()}clear(){const{_ctx:t,canvas:e}=this;t.fillStyle=this.backgroundColor,t.clearRect(0,0,e.width,e.height),t.fillRect(0,0,e.width,e.height),this._data=[],this._reset(),this._isEmpty=!0}fromDataURL(t,e={}){return new Promise(((i,n)=>{const s=new Image,o=e.ratio||window.devicePixelRatio||1,h=e.width||this.canvas.width/o,a=e.height||this.canvas.height/o,r=e.xOffset||0,d=e.yOffset||0;this._reset(),s.onload=()=>{this._ctx.drawImage(s,r,d,h,a),i()},s.onerror=t=>{n(t)},s.crossOrigin="anonymous",s.src=t,this._isEmpty=!1}))}toDataURL(t="image/png",e){return"image/svg+xml"===t?this._toSVG():this.canvas.toDataURL(t,e)}on(){this.canvas.style.touchAction="none",this.canvas.style.msTouchAction="none",this.canvas.style.userSelect="none";const t=/Macintosh/.test(navigator.userAgent)&&"ontouchstart"in document;window.PointerEvent&&!t?this._handlePointerEvents():(this._handleMouseEvents(),"ontouchstart"in window&&this._handleTouchEvents())}off(){this.canvas.style.touchAction="auto",this.canvas.style.msTouchAction="auto",this.canvas.style.userSelect="auto",this.canvas.removeEventListener("pointerdown",this._handlePointerStart),this.canvas.removeEventListener("pointermove",this._handlePointerMove),this.canvas.ownerDocument.removeEventListener("pointerup",this._handlePointerEnd),this.canvas.removeEventListener("mousedown",this._handleMouseDown),this.canvas.removeEventListener("mousemove",this._handleMouseMove),this.canvas.ownerDocument.removeEventListener("mouseup",this._handleMouseUp),this.canvas.removeEventListener("touchstart",this._handleTouchStart),this.canvas.removeEventListener("touchmove",this._handleTouchMove),this.canvas.removeEventListener("touchend",this._handleTouchEnd)}isEmpty(){return this._isEmpty}fromData(t,{clear:e=!0}={}){e&&this.clear(),this._fromData(t,this._drawCurve.bind(this),this._drawDot.bind(this)),this._data=this._data.concat(t)}toData(){return this._data}_strokeBegin(t){this.dispatchEvent(new CustomEvent("beginStroke",{detail:t}));const e={dotSize:this.dotSize,minWidth:this.minWidth,maxWidth:this.maxWidth,penColor:this.penColor,points:[]};this._data.push(e),this._reset(),this._strokeUpdate(t)}_strokeUpdate(t){if(0===this._data.length)return void this._strokeBegin(t);this.dispatchEvent(new CustomEvent("beforeUpdateStroke",{detail:t}));const e=t.clientX,i=t.clientY,n=void 0!==t.pressure?t.pressure:void 0!==t.force?t.force:0,s=this._createPoint(e,i,n),o=this._data[this._data.length-1],h=o.points,a=h.length>0&&h[h.length-1],r=!!a&&s.distanceTo(a)<=this.minDistance,{penColor:d,dotSize:c,minWidth:l,maxWidth:u}=o;if(!a||!a||!r){const t=this._addPoint(s);a?t&&this._drawCurve(t,{penColor:d,dotSize:c,minWidth:l,maxWidth:u}):this._drawDot(s,{penColor:d,dotSize:c,minWidth:l,maxWidth:u}),h.push({time:s.time,x:s.x,y:s.y,pressure:s.pressure})}this.dispatchEvent(new CustomEvent("afterUpdateStroke",{detail:t}))}_strokeEnd(t){this._strokeUpdate(t),this.dispatchEvent(new CustomEvent("endStroke",{detail:t}))}_handlePointerEvents(){this._drawningStroke=!1,this.canvas.addEventListener("pointerdown",this._handlePointerStart),this.canvas.addEventListener("pointermove",this._handlePointerMove),this.canvas.ownerDocument.addEventListener("pointerup",this._handlePointerEnd)}_handleMouseEvents(){this._drawningStroke=!1,this.canvas.addEventListener("mousedown",this._handleMouseDown),this.canvas.addEventListener("mousemove",this._handleMouseMove),this.canvas.ownerDocument.addEventListener("mouseup",this._handleMouseUp)}_handleTouchEvents(){this.canvas.addEventListener("touchstart",this._handleTouchStart),this.canvas.addEventListener("touchmove",this._handleTouchMove),this.canvas.addEventListener("touchend",this._handleTouchEnd)}_reset(){this._lastPoints=[],this._lastVelocity=0,this._lastWidth=(this.minWidth+this.maxWidth)/2,this._ctx.fillStyle=this.penColor}_createPoint(e,i,n){const s=this.canvas.getBoundingClientRect();return new t(e-s.left,i-s.top,n,(new Date).getTime())}_addPoint(t){const{_lastPoints:i}=this;if(i.push(t),i.length>2){3===i.length&&i.unshift(i[0]);const t=this._calculateCurveWidths(i[1],i[2]),n=e.fromPoints(i,t);return i.shift(),n}return null}_calculateCurveWidths(t,e){const i=this.velocityFilterWeight*e.velocityFrom(t)+(1-this.velocityFilterWeight)*this._lastVelocity,n=this._strokeWidth(i),s={end:n,start:this._lastWidth};return this._lastVelocity=i,this._lastWidth=n,s}_strokeWidth(t){return Math.max(this.maxWidth/(t+1),this.minWidth)}_drawCurveSegment(t,e,i){const n=this._ctx;n.moveTo(t,e),n.arc(t,e,i,0,2*Math.PI,!1),this._isEmpty=!1}_drawCurve(t,e){const i=this._ctx,n=t.endWidth-t.startWidth,s=2*Math.ceil(t.length());i.beginPath(),i.fillStyle=e.penColor;for(let i=0;i<s;i+=1){const o=i/s,h=o*o,a=h*o,r=1-o,d=r*r,c=d*r;let l=c*t.startPoint.x;l+=3*d*o*t.control1.x,l+=3*r*h*t.control2.x,l+=a*t.endPoint.x;let u=c*t.startPoint.y;u+=3*d*o*t.control1.y,u+=3*r*h*t.control2.y,u+=a*t.endPoint.y;const v=Math.min(t.startWidth+a*n,e.maxWidth);this._drawCurveSegment(l,u,v)}i.closePath(),i.fill()}_drawDot(t,e){const i=this._ctx,n=e.dotSize>0?e.dotSize:(e.minWidth+e.maxWidth)/2;i.beginPath(),this._drawCurveSegment(t.x,t.y,n),i.closePath(),i.fillStyle=e.penColor,i.fill()}_fromData(e,i,n){for(const s of e){const{penColor:e,dotSize:o,minWidth:h,maxWidth:a,points:r}=s;if(r.length>1)for(let n=0;n<r.length;n+=1){const s=r[n],d=new t(s.x,s.y,s.pressure,s.time);this.penColor=e,0===n&&this._reset();const c=this._addPoint(d);c&&i(c,{penColor:e,dotSize:o,minWidth:h,maxWidth:a})}else this._reset(),n(r[0],{penColor:e,dotSize:o,minWidth:h,maxWidth:a})}}_toSVG(){const t=this._data,e=Math.max(window.devicePixelRatio||1,1),i=this.canvas.width/e,n=this.canvas.height/e,s=document.createElementNS("http://www.w3.org/2000/svg","svg");s.setAttribute("width",this.canvas.width.toString()),s.setAttribute("height",this.canvas.height.toString()),this._fromData(t,((t,{penColor:e})=>{const i=document.createElement("path");if(!(isNaN(t.control1.x)||isNaN(t.control1.y)||isNaN(t.control2.x)||isNaN(t.control2.y))){const n=`M ${t.startPoint.x.toFixed(3)},${t.startPoint.y.toFixed(3)} C ${t.control1.x.toFixed(3)},${t.control1.y.toFixed(3)} ${t.control2.x.toFixed(3)},${t.control2.y.toFixed(3)} ${t.endPoint.x.toFixed(3)},${t.endPoint.y.toFixed(3)}`;i.setAttribute("d",n),i.setAttribute("stroke-width",(2.25*t.endWidth).toFixed(3)),i.setAttribute("stroke",e),i.setAttribute("fill","none"),i.setAttribute("stroke-linecap","round"),s.appendChild(i)}}),((t,{penColor:e,dotSize:i,minWidth:n,maxWidth:o})=>{const h=document.createElement("circle"),a=i>0?i:(n+o)/2;h.setAttribute("r",a.toString()),h.setAttribute("cx",t.x.toString()),h.setAttribute("cy",t.y.toString()),h.setAttribute("fill",e),s.appendChild(h)}));const o=`<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 ${this.canvas.width} ${this.canvas.height}" width="${i}" height="${n}">`;let h=s.innerHTML;if(void 0===h){const t=document.createElement("dummy"),e=s.childNodes;t.innerHTML="";for(let i=0;i<e.length;i+=1)t.appendChild(e[i].cloneNode(!0));h=t.innerHTML}return"data:image/svg+xml;base64,"+btoa(o+h+"</svg>")}}return i}));
+!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):(t="undefined"!=typeof globalThis?globalThis:t||self).SignaturePad=e()}(this,(function(){"use strict";class t{constructor(t,e,i,n){if(isNaN(t)||isNaN(e))throw new Error(`Point is invalid: (${t}, ${e})`);this.x=+t,this.y=+e,this.pressure=i||0,this.time=n||Date.now()}distanceTo(t){return Math.sqrt(Math.pow(this.x-t.x,2)+Math.pow(this.y-t.y,2))}equals(t){return this.x===t.x&&this.y===t.y&&this.pressure===t.pressure&&this.time===t.time}velocityFrom(t){return this.time!==t.time?this.distanceTo(t)/(this.time-t.time):0}}class e{constructor(t,e,i,n,s,o){this.startPoint=t,this.control2=e,this.control1=i,this.endPoint=n,this.startWidth=s,this.endWidth=o}static fromPoints(t,i){const n=this.calculateControlPoints(t[0],t[1],t[2]).c2,s=this.calculateControlPoints(t[1],t[2],t[3]).c1;return new e(t[1],n,s,t[2],i.start,i.end)}static calculateControlPoints(e,i,n){const s=e.x-i.x,o=e.y-i.y,h=i.x-n.x,r=i.y-n.y,a=(e.x+i.x)/2,d=(e.y+i.y)/2,c=(i.x+n.x)/2,l=(i.y+n.y)/2,u=Math.sqrt(s*s+o*o),v=Math.sqrt(h*h+r*r),m=v/(u+v),_=c+(a-c)*m,p=l+(d-l)*m,g=i.x-_,w=i.y-p;return{c1:new t(a+g,d+w),c2:new t(c+g,l+w)}}length(){let t,e,i=0;for(let n=0;n<=10;n+=1){const s=n/10,o=this.point(s,this.startPoint.x,this.control1.x,this.control2.x,this.endPoint.x),h=this.point(s,this.startPoint.y,this.control1.y,this.control2.y,this.endPoint.y);if(n>0){const n=o-t,s=h-e;i+=Math.sqrt(n*n+s*s)}t=o,e=h}return i}point(t,e,i,n,s){return e*(1-t)*(1-t)*(1-t)+3*i*(1-t)*(1-t)*t+3*n*(1-t)*t*t+s*t*t*t}}class i extends class{constructor(){try{this._et=new EventTarget}catch(t){this._et=document}}addEventListener(t,e,i){this._et.addEventListener(t,e,i)}dispatchEvent(t){return this._et.dispatchEvent(t)}removeEventListener(t,e,i){this._et.removeEventListener(t,e,i)}}{constructor(t,e={}){super(),this.canvas=t,this._handleMouseDown=t=>{1===t.buttons&&(this._drawningStroke=!0,this._strokeBegin(t))},this._handleMouseMove=t=>{this._drawningStroke&&this._strokeMoveUpdate(t)},this._handleMouseUp=t=>{1===t.buttons&&this._drawningStroke&&(this._drawningStroke=!1,this._strokeEnd(t))},this._handleTouchStart=t=>{if(t.cancelable&&t.preventDefault(),1===t.targetTouches.length){const e=t.changedTouches[0];this._strokeBegin(e)}},this._handleTouchMove=t=>{t.cancelable&&t.preventDefault();const e=t.targetTouches[0];this._strokeMoveUpdate(e)},this._handleTouchEnd=t=>{if(t.target===this.canvas){t.cancelable&&t.preventDefault();const e=t.changedTouches[0];this._strokeEnd(e)}},this._handlePointerStart=t=>{this._drawningStroke=!0,t.preventDefault(),this._strokeBegin(t)},this._handlePointerMove=t=>{this._drawningStroke&&(t.preventDefault(),this._strokeMoveUpdate(t))},this._handlePointerEnd=t=>{this._drawningStroke&&(t.preventDefault(),this._drawningStroke=!1,this._strokeEnd(t))},this.velocityFilterWeight=e.velocityFilterWeight||.7,this.minWidth=e.minWidth||.5,this.maxWidth=e.maxWidth||2.5,this.throttle="throttle"in e?e.throttle:16,this.minDistance="minDistance"in e?e.minDistance:5,this.dotSize=e.dotSize||0,this.penColor=e.penColor||"black",this.backgroundColor=e.backgroundColor||"rgba(0,0,0,0)",this._strokeMoveUpdate=this.throttle?function(t,e=250){let i,n,s,o=0,h=null;const r=()=>{o=Date.now(),h=null,i=t.apply(n,s),h||(n=null,s=[])};return function(...a){const d=Date.now(),c=e-(d-o);return n=this,s=a,c<=0||c>e?(h&&(clearTimeout(h),h=null),o=d,i=t.apply(n,s),h||(n=null,s=[])):h||(h=window.setTimeout(r,c)),i}}(i.prototype._strokeUpdate,this.throttle):i.prototype._strokeUpdate,this._ctx=t.getContext("2d"),this.clear(),this.on()}clear(){const{_ctx:t,canvas:e}=this;t.fillStyle=this.backgroundColor,t.clearRect(0,0,e.width,e.height),t.fillRect(0,0,e.width,e.height),this._data=[],this._reset(),this._isEmpty=!0}fromDataURL(t,e={}){return new Promise(((i,n)=>{const s=new Image,o=e.ratio||window.devicePixelRatio||1,h=e.width||this.canvas.width/o,r=e.height||this.canvas.height/o,a=e.xOffset||0,d=e.yOffset||0;this._reset(),s.onload=()=>{this._ctx.drawImage(s,a,d,h,r),i()},s.onerror=t=>{n(t)},s.crossOrigin="anonymous",s.src=t,this._isEmpty=!1}))}toDataURL(t="image/png",e){return"image/svg+xml"===t?this._toSVG():this.canvas.toDataURL(t,e)}on(){this.canvas.style.touchAction="none",this.canvas.style.msTouchAction="none",this.canvas.style.userSelect="none";const t=/Macintosh/.test(navigator.userAgent)&&"ontouchstart"in document;window.PointerEvent&&!t?this._handlePointerEvents():(this._handleMouseEvents(),"ontouchstart"in window&&this._handleTouchEvents())}off(){this.canvas.style.touchAction="auto",this.canvas.style.msTouchAction="auto",this.canvas.style.userSelect="auto",this.canvas.removeEventListener("pointerdown",this._handlePointerStart),this.canvas.removeEventListener("pointermove",this._handlePointerMove),this.canvas.ownerDocument.removeEventListener("pointerup",this._handlePointerEnd),this.canvas.removeEventListener("mousedown",this._handleMouseDown),this.canvas.removeEventListener("mousemove",this._handleMouseMove),this.canvas.ownerDocument.removeEventListener("mouseup",this._handleMouseUp),this.canvas.removeEventListener("touchstart",this._handleTouchStart),this.canvas.removeEventListener("touchmove",this._handleTouchMove),this.canvas.removeEventListener("touchend",this._handleTouchEnd)}isEmpty(){return this._isEmpty}fromData(t,{clear:e=!0}={}){e&&this.clear(),this._fromData(t,this._drawCurve.bind(this),this._drawDot.bind(this)),this._data=this._data.concat(t)}toData(){return this._data}_strokeBegin(t){this.dispatchEvent(new CustomEvent("beginStroke",{detail:t}));const e={dotSize:this.dotSize,minWidth:this.minWidth,maxWidth:this.maxWidth,penColor:this.penColor,points:[]};this._data.push(e),this._reset(),this._strokeUpdate(t)}_strokeUpdate(t){if(0===this._data.length)return void this._strokeBegin(t);this.dispatchEvent(new CustomEvent("beforeUpdateStroke",{detail:t}));const e=t.clientX,i=t.clientY,n=void 0!==t.pressure?t.pressure:void 0!==t.force?t.force:0,s=this._createPoint(e,i,n),o=this._data[this._data.length-1],h=o.points,r=h.length>0&&h[h.length-1],a=!!r&&s.distanceTo(r)<=this.minDistance,{penColor:d,dotSize:c,minWidth:l,maxWidth:u}=o;if(!r||!r||!a){const t=this._addPoint(s);r?t&&this._drawCurve(t,{penColor:d,dotSize:c,minWidth:l,maxWidth:u}):this._drawDot(s,{penColor:d,dotSize:c,minWidth:l,maxWidth:u}),h.push({time:s.time,x:s.x,y:s.y,pressure:s.pressure})}this.dispatchEvent(new CustomEvent("afterUpdateStroke",{detail:t}))}_strokeEnd(t){this._strokeUpdate(t),this.dispatchEvent(new CustomEvent("endStroke",{detail:t}))}_handlePointerEvents(){this._drawningStroke=!1,this.canvas.addEventListener("pointerdown",this._handlePointerStart),this.canvas.addEventListener("pointermove",this._handlePointerMove),this.canvas.ownerDocument.addEventListener("pointerup",this._handlePointerEnd)}_handleMouseEvents(){this._drawningStroke=!1,this.canvas.addEventListener("mousedown",this._handleMouseDown),this.canvas.addEventListener("mousemove",this._handleMouseMove),this.canvas.ownerDocument.addEventListener("mouseup",this._handleMouseUp)}_handleTouchEvents(){this.canvas.addEventListener("touchstart",this._handleTouchStart),this.canvas.addEventListener("touchmove",this._handleTouchMove),this.canvas.addEventListener("touchend",this._handleTouchEnd)}_reset(){this._lastPoints=[],this._lastVelocity=0,this._lastWidth=(this.minWidth+this.maxWidth)/2,this._ctx.fillStyle=this.penColor}_createPoint(e,i,n){const s=this.canvas.getBoundingClientRect();return new t(e-s.left,i-s.top,n,(new Date).getTime())}_addPoint(t){const{_lastPoints:i}=this;if(i.push(t),i.length>2){3===i.length&&i.unshift(i[0]);const t=this._calculateCurveWidths(i[1],i[2]),n=e.fromPoints(i,t);return i.shift(),n}return null}_calculateCurveWidths(t,e){const i=this.velocityFilterWeight*e.velocityFrom(t)+(1-this.velocityFilterWeight)*this._lastVelocity,n=this._strokeWidth(i),s={end:n,start:this._lastWidth};return this._lastVelocity=i,this._lastWidth=n,s}_strokeWidth(t){return Math.max(this.maxWidth/(t+1),this.minWidth)}_drawCurveSegment(t,e,i){const n=this._ctx;n.moveTo(t,e),n.arc(t,e,i,0,2*Math.PI,!1),this._isEmpty=!1}_drawCurve(t,e){const i=this._ctx,n=t.endWidth-t.startWidth,s=2*Math.ceil(t.length());i.beginPath(),i.fillStyle=e.penColor;for(let i=0;i<s;i+=1){const o=i/s,h=o*o,r=h*o,a=1-o,d=a*a,c=d*a;let l=c*t.startPoint.x;l+=3*d*o*t.control1.x,l+=3*a*h*t.control2.x,l+=r*t.endPoint.x;let u=c*t.startPoint.y;u+=3*d*o*t.control1.y,u+=3*a*h*t.control2.y,u+=r*t.endPoint.y;const v=Math.min(t.startWidth+r*n,e.maxWidth);this._drawCurveSegment(l,u,v)}i.closePath(),i.fill()}_drawDot(t,e){const i=this._ctx,n=e.dotSize>0?e.dotSize:(e.minWidth+e.maxWidth)/2;i.beginPath(),this._drawCurveSegment(t.x,t.y,n),i.closePath(),i.fillStyle=e.penColor,i.fill()}_fromData(e,i,n){for(const s of e){const{penColor:e,dotSize:o,minWidth:h,maxWidth:r,points:a}=s;if(a.length>1)for(let n=0;n<a.length;n+=1){const s=a[n],d=new t(s.x,s.y,s.pressure,s.time);this.penColor=e,0===n&&this._reset();const c=this._addPoint(d);c&&i(c,{penColor:e,dotSize:o,minWidth:h,maxWidth:r})}else this._reset(),n(a[0],{penColor:e,dotSize:o,minWidth:h,maxWidth:r})}}_toSVG(){const t=this._data,e=Math.max(window.devicePixelRatio||1,1),i=this.canvas.width/e,n=this.canvas.height/e,s=document.createElementNS("http://www.w3.org/2000/svg","svg");s.setAttribute("width",this.canvas.width.toString()),s.setAttribute("height",this.canvas.height.toString()),this._fromData(t,((t,{penColor:e})=>{const i=document.createElement("path");if(!(isNaN(t.control1.x)||isNaN(t.control1.y)||isNaN(t.control2.x)||isNaN(t.control2.y))){const n=`M ${t.startPoint.x.toFixed(3)},${t.startPoint.y.toFixed(3)} C ${t.control1.x.toFixed(3)},${t.control1.y.toFixed(3)} ${t.control2.x.toFixed(3)},${t.control2.y.toFixed(3)} ${t.endPoint.x.toFixed(3)},${t.endPoint.y.toFixed(3)}`;i.setAttribute("d",n),i.setAttribute("stroke-width",(2.25*t.endWidth).toFixed(3)),i.setAttribute("stroke",e),i.setAttribute("fill","none"),i.setAttribute("stroke-linecap","round"),s.appendChild(i)}}),((t,{penColor:e,dotSize:i,minWidth:n,maxWidth:o})=>{const h=document.createElement("circle"),r=i>0?i:(n+o)/2;h.setAttribute("r",r.toString()),h.setAttribute("cx",t.x.toString()),h.setAttribute("cy",t.y.toString()),h.setAttribute("fill",e),s.appendChild(h)}));const o=`<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 ${i} ${n}" width="${i}" height="${n}">`;let h=s.innerHTML;if(void 0===h){const t=document.createElement("dummy"),e=s.childNodes;t.innerHTML="";for(let i=0;i<e.length;i+=1)t.appendChild(e[i].cloneNode(!0));h=t.innerHTML}return"data:image/svg+xml;base64,"+btoa(o+h+"</svg>")}}return i}));
 //# sourceMappingURL=signature_pad.umd.min.js.map

docs/js/app.js

@@ -34,3 +34,6 @@ const wrapper = document.getElementById("signature-pad");
   // have to clear it manually.
-  signaturePad.clear();
+  //signaturePad.clear();
+  
+  // If you want to keep the drawing on resize instead of clearing it you can reset the data.
+  signaturePad.fromData(signaturePad.toData());
 }
@@ -37,0 +40,0 @@

docs/js/signature_pad.umd.js

 /*!
- * Signature Pad v4.0.7 | https://github.com/szimek/signature_pad
+ * Signature Pad v4.0.8 | https://github.com/szimek/signature_pad
  * (c) 2022 Szymon Nowak | Released under the MIT license
@@ -556,3 +556,3 @@ */
                 ' xmlns:xlink="http://www.w3.org/1999/xlink"' +
-                ` viewBox="${minX} ${minY} ${this.canvas.width} ${this.canvas.height}"` +
+                ` viewBox="${minX} ${minY} ${maxX} ${maxY}"` +
                 ` width="${maxX}"` +
@@ -559,0 +559,0 @@ ` height="${maxY}"` +

package.json

 {
   "name": "signature_pad",
   "description": "Library for drawing smooth signatures.",
-  "version": "4.0.7",
+  "version": "4.0.8",
   "homepage": "https://github.com/szimek/signature_pad",
@@ -39,31 +39,31 @@ "author": {
   "devDependencies": {
-    "@rollup/plugin-typescript": "^8.3.2",
+    "@rollup/plugin-typescript": "^8.3.4",
     "@semantic-release/changelog": "^6.0.1",
     "@semantic-release/commit-analyzer": "^9.0.2",
     "@semantic-release/git": "^10.0.1",
-    "@semantic-release/github": "^8.0.4",
+    "@semantic-release/github": "^8.0.5",
     "@semantic-release/npm": "^9.0.1",
     "@semantic-release/release-notes-generator": "^10.0.3",
-    "@types/jest": "^28.1.1",
-    "@types/node": "^17.0.39",
-    "@typescript-eslint/eslint-plugin": "^5.27.0",
-    "@typescript-eslint/parser": "^5.27.0",
+    "@types/jest": "^28.1.6",
+    "@types/node": "^18.6.2",
+    "@typescript-eslint/eslint-plugin": "^5.31.0",
+    "@typescript-eslint/parser": "^5.31.0",
     "cp-cli": "^2.0.0",
-    "del": "^6.1.1",
-    "del-cli": "^4.0.1",
-    "eslint": "^8.17.0",
+    "del": "^7.0.0",
+    "del-cli": "^5.0.0",
+    "eslint": "^8.20.0",
     "eslint-config-prettier": "^8.5.0",
     "husky": "^8.0.1",
-    "jest": "^28.1.0",
+    "jest": "^28.1.3",
     "jest-canvas-mock": "^2.4.0",
-    "jest-environment-jsdom": "^28.1.0",
-    "lint-staged": "^13.0.0",
-    "prettier": "^2.6.2",
-    "rollup": "^2.75.5",
+    "jest-environment-jsdom": "^28.1.3",
+    "lint-staged": "^13.0.3",
+    "prettier": "^2.7.1",
+    "rollup": "^2.77.2",
     "rollup-plugin-terser": "^7.0.2",
-    "semantic-release": "^19.0.2",
-    "serve": "^13.0.2",
-    "ts-jest": "^28.0.4",
+    "semantic-release": "^19.0.3",
+    "serve": "^14.0.1",
+    "ts-jest": "^28.0.7",
     "tslib": "^2.4.0",
-    "typescript": "^4.7.3"
+    "typescript": "^4.7.4"
   },
@@ -70,0 +70,0 @@ "lint-staged": {

README.md

@@ -168,3 +168,3 @@ # Signature Pad [![npm](https://badge.fury.io/js/signature_pad.svg)](https://www.npmjs.com/package/signature_pad) [![tests](https://github.com/szimek/signature_pad/actions/workflows/test.yml/badge.svg)](https://github.com/szimek/signature_pad/actions/workflows/test.yml) [![Code Climate](https://codeclimate.com/github/szimek/signature_pad.png)](https://codeclimate.com/github/szimek/signature_pad) [![](https://data.jsdelivr.com/v1/package/npm/signature_pad/badge?style=rounded)](https://www.jsdelivr.com/package/npm/signature_pad)
 
-When you modify width or height of a canvas, it will be automatically cleared by the browser. SignaturePad doesn't know about it by itself, so you can call `signaturePad.clear()` to make sure that `signaturePad.isEmpty()` returns correct value in this case.
+When you modify width or height of a canvas, it will be automatically cleared by the browser. SignaturePad doesn't know about it by itself, so you can call `signaturePad.fromData(signaturePad.toData())` to reset the drawing, or `signaturePad.clear()` to make sure that `signaturePad.isEmpty()` returns correct value in this case.
 
@@ -171,0 +171,0 @@ This clearing of the canvas by the browser can be annoying, especially on mobile devices e.g. when screen orientation is changed. There are a few workarounds though, e.g. you can [lock screen orientation](https://developer.mozilla.org/en-US/docs/Web/API/Screen/lockOrientation), or read an image from the canvas before resizing it and write the image back after.

src/signature_pad.ts

@@ -652,3 +652,3 @@ /**
       ' xmlns:xlink="http://www.w3.org/1999/xlink"' +
-      ` viewBox="${minX} ${minY} ${this.canvas.width} ${this.canvas.height}"` +
+      ` viewBox="${minX} ${minY} ${maxX} ${maxY}"` +
       ` width="${maxX}"` +
@@ -655,0 +655,0 @@ ` height="${maxY}"` +

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Found 1 instance in 1 package

Fixed alerts

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Found 1 instance in 1 package

Improved metrics

Lines of code

2977

increased by0.07%

Worsened metrics

Total package byte prevSize

231961

decreased by-0.04%

No dependency changes