native-forms-react/dist/index-c9013c52.js

Build forms, surveys and polls for React.

"use strict";var t=require("./index-8e695942.js");require("react");var e=require("./_react_commonjs-external-dd9e1409.js");
/*!
 * Signature Pad v2.3.2
 * https://github.com/szimek/signature_pad
 *
 * Copyright 2017 Szymon Nowak
 * Released under the MIT license
 *
 * The main idea and some parts of the code (e.g. drawing variable width Bézier curve) are taken from:
 * http://corner.squareup.com/2012/07/smoother-signatures.html
 *
 * Implementation of interpolation using cubic Bézier curves is taken from:
 * http://benknowscode.wordpress.com/2012/09/14/path-interpolation-using-cubic-bezier-and-control-point-estimation-in-javascript
 *
 * Algorithm for approximated length of a Bézier curve is taken from:
 * http://www.lemoda.net/maths/bezier-length/index.html
 *
 */function n(t,e,n){this.x=t,this.y=e,this.time=n||(new Date).getTime()}function o(t,e,n,o){this.startPoint=t,this.control1=e,this.control2=n,this.endPoint=o}function i(t,e){var n=this,o=e||{};this.velocityFilterWeight=o.velocityFilterWeight||.7,this.minWidth=o.minWidth||.5,this.maxWidth=o.maxWidth||2.5,this.throttle="throttle"in o?o.throttle:16,this.minDistance="minDistance"in o?o.minDistance:5,this.throttle?this._strokeMoveUpdate=function(t,e,n){var o,i,r,a=null,s=0;n||(n={});var h=function(){s=!1===n.leading?0:Date.now(),a=null,r=t.apply(o,i),a||(o=i=null)};return function(){var u=Date.now();s||!1!==n.leading||(s=u);var c=e-(u-s);return o=this,i=arguments,c<=0||c>e?(a&&(clearTimeout(a),a=null),s=u,r=t.apply(o,i),a||(o=i=null)):a||!1===n.trailing||(a=setTimeout(h,c)),r}}(i.prototype._strokeUpdate,this.throttle):this._strokeMoveUpdate=i.prototype._strokeUpdate,this.dotSize=o.dotSize||function(){return(this.minWidth+this.maxWidth)/2},this.penColor=o.penColor||"black",this.backgroundColor=o.backgroundColor||"rgba(0,0,0,0)",this.onBegin=o.onBegin,this.onEnd=o.onEnd,this._canvas=t,this._ctx=t.getContext("2d"),this.clear(),this._handleMouseDown=function(t){1===t.which&&(n._mouseButtonDown=!0,n._strokeBegin(t))},this._handleMouseMove=function(t){n._mouseButtonDown&&n._strokeMoveUpdate(t)},this._handleMouseUp=function(t){1===t.which&&n._mouseButtonDown&&(n._mouseButtonDown=!1,n._strokeEnd(t))},this._handleTouchStart=function(t){if(1===t.targetTouches.length){var e=t.changedTouches[0];n._strokeBegin(e)}},this._handleTouchMove=function(t){t.preventDefault();var e=t.targetTouches[0];n._strokeMoveUpdate(e)},this._handleTouchEnd=function(t){t.target===n._canvas&&(t.preventDefault(),n._strokeEnd(t))},this.on()}n.prototype.velocityFrom=function(t){return this.time!==t.time?this.distanceTo(t)/(this.time-t.time):1},n.prototype.distanceTo=function(t){return Math.sqrt(Math.pow(this.x-t.x,2)+Math.pow(this.y-t.y,2))},n.prototype.equals=function(t){return this.x===t.x&&this.y===t.y&&this.time===t.time},o.prototype.length=function(){for(var t=0,e=void 0,n=void 0,o=0;o<=10;o+=1){var i=o/10,r=this._point(i,this.startPoint.x,this.control1.x,this.control2.x,this.endPoint.x),a=this._point(i,this.startPoint.y,this.control1.y,this.control2.y,this.endPoint.y);if(o>0){var s=r-e,h=a-n;t+=Math.sqrt(s*s+h*h)}e=r,n=a}return t},o.prototype._point=function(t,e,n,o,i){return e*(1-t)*(1-t)*(1-t)+3*n*(1-t)*(1-t)*t+3*o*(1-t)*t*t+i*t*t*t},i.prototype.clear=function(){var t=this._ctx,e=this._canvas;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},i.prototype.fromDataURL=function(t){var e=this,n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{},o=new Image,i=n.ratio||window.devicePixelRatio||1,r=n.width||this._canvas.width/i,a=n.height||this._canvas.height/i;this._reset(),o.src=t,o.onload=function(){e._ctx.drawImage(o,0,0,r,a)},this._isEmpty=!1},i.prototype.toDataURL=function(t){var e;switch(t){case"image/svg+xml":return this._toSVG();default:for(var 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e=t.clientX,n=t.clientY,o=this._createPoint(e,n),i=this._data[this._data.length-1],r=i&&i[i.length-1],a=r&&o.distanceTo(r)<this.minDistance;if(!r||!a){var s=this._addPoint(o),h=s.curve,u=s.widths;h&&u&&this._drawCurve(h,u.start,u.end),this._data[this._data.length-1].push({x:o.x,y:o.y,time:o.time,color:this.penColor})}},i.prototype._strokeEnd=function(t){var e=this.points.length>2,n=this.points[0];if(!e&&n&&this._drawDot(n),n){var o=this._data[this._data.length-1],i=o[o.length-1];n.equals(i)||o.push({x:n.x,y:n.y,time:n.time,color:this.penColor})}"function"==typeof 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