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LobbySIO/js/jSignature.min.js
Josh North 130030f21a Clean History
2018-10-15 15:14:36 -04:00

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JavaScript
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/*
jSignature v2 "2017-07-30T10:26" "commit ID 3ef5538b5b49228993a9d3613d4b6d465150a310"
Copyright (c) 2012 Willow Systems Corp http://willow-systems.com
Copyright (c) 2010 Brinley Ang http://www.unbolt.net
MIT License <http://www.opensource.org/licenses/mit-license.php>
Simplify.js BSD
(c) 2012, Vladimir Agafonkin
mourner.github.com/simplify-js
base64 encoder
MIT, GPL
http://phpjs.org/functions/base64_encode
+ original by: Tyler Akins (http://rumkin.com)
+ improved by: Bayron Guevara
+ improved by: Thunder.m
+ improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
+ bugfixed by: Pellentesque Malesuada
+ improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
+ improved by: Rafal Kukawski (http://kukawski.pl)
jSignature v2 jSignature's Undo Button and undo functionality plugin
jSignature v2 jSignature's custom "base30" format export and import plugins.
jSignature v2 SVG export plugin.
*/
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b-this.y)};this.getVectorFromCoordinates=function(a,b){return this.getVectorToCoordinates(a,b).reverse()};this.getVectorToPoint=function(a){return new k(a.x-this.x,a.y-this.y)};this.getVectorFromPoint=function(a){return this.getVectorToPoint(a).reverse()}}function p(a,b,d,g,c){this.data=a;this.context=b;if(a.length)for(var n=a.length,e,l,f=0;f<n;f++){e=a[f];l=e.x.length;d.call(b,e);for(var u=1;u<l;u++)g.call(b,e,u);c.call(b,e)}this.changed=function(){};this.startStrokeFn=d;this.addToStrokeFn=g;this.endStrokeFn=
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$(c);this.isCanvasEmulator?(g.bind("mousemove.jSignature",d),g.bind("mouseup.jSignature",a),g.bind("mousedown.jSignature",b)):(c.ontouchstart=function(g){c.onmousedown=c.onmouseup=c.onmousemove=void 0;this.fatFingerCompensation=e.minFatFingerCompensation&&-3*e.lineWidth>e.minFatFingerCompensation?-3*e.lineWidth:e.minFatFingerCompensation;b(g);c.ontouchend=a;c.ontouchstart=b;c.ontouchmove=d},c.onmousedown=function(g){c.ontouchstart=c.ontouchend=c.ontouchmove=void 0;b(g);c.onmousedown=b;c.onmouseup=
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var b=a.ownerDocument.parentWindow,d=b.FlashCanvas?a.ownerDocument.parentWindow.FlashCanvas:"undefined"===typeof FlashCanvas?void 0:FlashCanvas;if(d){a=d.initElement(a);d=1;b&&b.screen&&b.screen.deviceXDPI&&b.screen.logicalXDPI&&(d=1*b.screen.deviceXDPI/b.screen.logicalXDPI);if(1!==d)try{$(a).children("object").get(0).resize(Math.ceil(a.width*d),Math.ceil(a.height*d)),a.getContext("2d").scale(d,d)}catch(g){}return!0}throw Error("Canvas element does not support 2d context. jSignature cannot proceed.");
}var w=function(a,b){var d;this.kick=function(){clearTimeout(d);d=setTimeout(b,a)};this.clear=function(){clearTimeout(d)};return this},v=function(a){this.topics={};this.context=a?a:this;this.publish=function(a,d,g,c){if(this.topics[a]){var b=this.topics[a],e=Array.prototype.slice.call(arguments,1),f=[],h=[],u;var k=0;for(u=b.length;k<u;k++){var t=b[k];var C=t[0];t[1]&&(t[0]=function(){},f.push(k));h.push(C)}k=0;for(u=f.length;k<u;k++)b.splice(f[k],1);k=0;for(u=h.length;k<u;k++)h[k].apply(this.context,
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a.sizeRatio)):"ratio"===a.width&&d.css("width",Math.round(d.height()*a.sizeRatio));d.addClass("jSignature");b.width=d.width();b.height=d.height();this.isCanvasEmulator=y(b);b.onselectstart=function(a){a&&a.preventDefault&&a.preventDefault();a&&a.stopPropagation&&a.stopPropagation();return!1};return b};(function(a){function b(a,b,d){var c=new Image,e=this;c.onload=function(){var a=e.getContext("2d"),b=a.shadowColor;a.shadowColor="transparent";a.drawImage(c,0,0,c.width<e.width?c.width:e.width,c.height<
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(function(){function q(k,h,p){k=k.call(this);(function(h,k,p){h.events.subscribe(p+".change",function(){h.dataEngine.data.length?k.show():k.hide()})})(this,k,h);(function(h,k,p){var m=p+".undo";k.bind("click",function(){h.events.publish(m)});h.events.subscribe(m,function(){var k=h.dataEngine.data;k.length&&(k.pop(),h.resetCanvas(k))})})(this,k,this.events.topics.hasOwnProperty(h+".undo")?p:h)}$.fn.jSignature("addPlugin","instance","UndoButton",function(k){this.events.subscribe("jSignature.attachingEventHandlers",
function(){if(this.settings[k]){var h=this.settings[k];"function"!==typeof h&&(h=function(){var h=$('<input type="button" value="Undo last stroke" style="position:absolute;display:none;margin:0 !important;top:auto" />').appendTo(this.$controlbarLower),k=h.width();h.css("left",Math.round((this.canvas.width-k)/2));k!==h.width()&&h.width(k);return h});q.call(this,h,"jSignature",k)}})})})();
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