zhywebcore/EC.Web/wwwroot/lib/jqsign/jSignature.min.js

/*

jSignature v2 "2016-11-05T00:40" "commit ID d9ac2f271cfdf479d005a449193e09985043cafa"
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.

*/
(function(){function t(b){var a,c=b.css("color"),e;b=b[0];for(var h=!1;b&&!e&&!h;){try{a=$(b).css("background-color")}catch(l){a="transparent"}"transparent"!==a&&"rgba(0, 0, 0, 0)"!==a&&(e=a);h=b.body;b=b.parentNode}b=/rgb[a]*\((\d+),\s*(\d+),\s*(\d+)/;var h=/#([AaBbCcDdEeFf\d]{2})([AaBbCcDdEeFf\d]{2})([AaBbCcDdEeFf\d]{2})/,m;a=void 0;(a=c.match(b))?m={r:parseInt(a[1],10),g:parseInt(a[2],10),b:parseInt(a[3],10)}:(a=c.match(h))&&(m={r:parseInt(a[1],16),g:parseInt(a[2],16),b:parseInt(a[3],16)});var d;
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this.x)this._length=a,this.y=a*c(this.y);else if(0===this.y)this._length=a,this.x=a*c(this.x);else{var b=Math.abs(this.y/this.x),e=Math.sqrt(Math.pow(a,2)/(1+Math.pow(b,2))),b=b*e;this._length=a;this.x=e*c(this.x);this.y=b*c(this.y)}return this};this.angleTo=function(a){var b=this.getLength()*a.getLength();return 0===b?0:Math.acos(Math.min(Math.max((this.x*a.x+this.y*a.y)/b,-1),1))/Math.PI}}function g(b,a){this.x=b;this.y=a;this.getVectorToCoordinates=function(a,b){return new k(a-this.x,b-this.y)};
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h;this.inStroke=!1;this._stroke=this._lastPoint=null;this.startStroke=function(a){if(a&&"number"==typeof a.x&&"number"==typeof a.y){this._stroke={x:[a.x],y:[a.y]};this.data.push(this._stroke);this._lastPoint=a;this.inStroke=!0;var b=this._stroke,c=this.startStrokeFn,e=this.context;setTimeout(function(){c.call(e,b)},3);return a}return null};this.addToStroke=function(a){if(this.inStroke&&"number"===typeof a.x&&"number"===typeof a.y&&4<Math.abs(a.x-this._lastPoint.x)+Math.abs(a.y-this._lastPoint.y)){var b=
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".parentresized"]=e.subscribe(c+".parentresized",function(a,m,d,l){return function(){var h=m.width();if(h!==d){for(var l in a)a.hasOwnProperty(l)&&(e.unsubscribe(a[l]),delete a[l]);var f=b.settings;b.$parent.children().remove();for(l in b)b.hasOwnProperty(l)&&delete b[l];l=f.data;var h=1*h/d,u=[],A,E,g,k,r,n;E=0;for(g=l.length;E<g;E++){n=l[E];A={x:[],y:[]};k=0;for(r=n.x.length;k<r;k++)A.x.push(n.x[k]*h),A.y.push(n.y[k]*h);u.push(A)}f.data=u;m[c](f)}}}(this.eventTokens,this.$parent,this.$parent.width(),
1*this.canvas.width/this.canvas.height))}function x(b,a,c){var e=this.$parent=$(b);b=this.eventTokens={};this.events=new v(this);var h=$.fn.jSignature("globalEvents"),d={width:"ratio",height:"ratio",sizeRatio:4,color:"#000","background-color":"#fff","decor-color":"#eee",lineWidth:0,minFatFingerCompensation:-10,showUndoButton:!1,readOnly:!1,data:[],signatureLine:!1};$.extend(d,t(e));a&&$.extend(d,a);this.settings=d;for(var f in c)c.hasOwnProperty(f)&&c[f].call(this,f);this.events.publish("jSignature.initializing");
this.$controlbarUpper=$('<div style="padding:0 !important; margin:0 !important;width: 100% !important; height: 0 !important; -ms-touch-action: none; touch-action: none;margin-top:-1em !important; margin-bottom:1em !important;"></div>').appendTo(e);this.isCanvasEmulator=!1;a=this.canvas=this.initializeCanvas(d);c=$(a);this.$controlbarLower=$('<div style="padding:0 !important; margin:0 !important;width: 100% !important; height: 0 !important; -ms-touch-action: none; touch-action: none;margin-top:-1.5em !important; margin-bottom:1.5em !important; position: relative;"></div>').appendTo(e);
this.canvasContext=a.getContext("2d");c.data("jSignature.this",this);d.lineWidth=function(a,b){return a?a:Math.max(Math.round(b/400),2)}(d.lineWidth,a.width);this.lineCurveThreshold=3*d.lineWidth;d.cssclass&&""!=$.trim(d.cssclass)&&c.addClass(d.cssclass);this.fatFingerCompensation=0;e=function(a){var b,c,e=function(e){e=e.changedTouches&&0<e.changedTouches.length?e.changedTouches[0]:e;return new g(Math.round(e.pageX+b),Math.round(e.pageY+c)+a.fatFingerCompensation)},d=new w(750,function(){a.dataEngine.endStroke()});
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$(e);this.isCanvasEmulator?(h.bind("mousemove.jSignature",c),h.bind("mouseup.jSignature",a),h.bind("mousedown.jSignature",b)):(e.ontouchstart=function(h){e.onmousedown=e.onmouseup=e.onmousemove=void 0;this.fatFingerCompensation=d.minFatFingerCompensation&&-3*d.lineWidth>d.minFatFingerCompensation?-3*d.lineWidth:d.minFatFingerCompensation;b(h);e.ontouchend=a;e.ontouchstart=b;e.ontouchmove=c},e.onmousedown=function(d){e.ontouchstart=e.ontouchend=e.ontouchmove=void 0;b(d);e.onmousedown=b;e.onmouseup=
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var a=b.ownerDocument.parentWindow,c=a.FlashCanvas?b.ownerDocument.parentWindow.FlashCanvas:"undefined"===typeof FlashCanvas?void 0:FlashCanvas;if(c){b=c.initElement(b);c=1;a&&a.screen&&a.screen.deviceXDPI&&a.screen.logicalXDPI&&(c=1*a.screen.deviceXDPI/a.screen.logicalXDPI);if(1!==c)try{$(b).children("object").get(0).resize(Math.ceil(b.width*c),Math.ceil(b.height*c)),b.getContext("2d").scale(c,c)}catch(e){}return!0}throw Error("Canvas element does not support 2d context. jSignature cannot proceed.");
}var w=function(b,a){var c;this.kick=function(){clearTimeout(c);c=setTimeout(a,b)};this.clear=function(){clearTimeout(c)};return this},v=function(b){this.topics={};this.context=b?b:this;this.publish=function(a,b,e,d){if(this.topics[a]){var c=this.topics[a],h=Array.prototype.slice.call(arguments,1),f=[],g=[],p,q,u,A;q=0;for(u=c.length;q<u;q++)A=c[q],p=A[0],A[1]&&(A[0]=function(){},f.push(q)),g.push(p);q=0;for(u=f.length;q<u;q++)c.splice(f[q],1);q=0;for(u=g.length;q<u;q++)g[q].apply(this.context,h)}};
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e/-2,b+e/-2,e,e);a.fillStyle=d},f=function(b,a){var c=new g(b.x[a-1],b.y[a-1]),e=new g(b.x[a],b.y[a]),d=c.getVectorToPoint(e);if(1<a){var m=new g(b.x[a-2],b.y[a-2]),f=m.getVectorToPoint(c),l;if(f.getLength()>this.lineCurveThreshold){l=2<a?(new g(b.x[a-3],b.y[a-3])).getVectorToPoint(m):new k(0,0);var n=.35*f.getLength(),p=f.angleTo(l.reverse()),q=d.angleTo(f.reverse());l=(new k(l.x+f.x,l.y+f.y)).resizeTo(Math.max(.05,p)*n);var u=(new k(f.x+d.x,f.y+d.y)).reverse().resizeTo(Math.max(.05,q)*n),f=this.canvasContext,
n=m.x,q=m.y,p=c.x,A=c.y,r=m.x+l.x,m=m.y+l.y;l=c.x+u.x;u=c.y+u.y;f.beginPath();f.moveTo(n,q);f.bezierCurveTo(r,m,l,u,p,A);f.closePath();f.stroke()}}d.getLength()<=this.lineCurveThreshold&&z(this.canvasContext,c.x,c.y,e.x,e.y)},d=function(b){var a=b.x.length-1;if(0<a){var c=new g(b.x[a],b.y[a]),e=new g(b.x[a-1],b.y[a-1]),d=e.getVectorToPoint(c);if(d.getLength()>this.lineCurveThreshold)if(1<a){b=(new g(b.x[a-2],b.y[a-2])).getVectorToPoint(e);var f=(new k(b.x+d.x,b.y+d.y)).resizeTo(d.getLength()/2),d=
this.canvasContext;b=e.x;var a=e.y,E=c.x,l=c.y,n=e.x+f.x,e=e.y+f.y,f=c.x,c=c.y;d.beginPath();d.moveTo(b,a);d.bezierCurveTo(n,e,f,c,E,l);d.closePath();d.stroke()}else z(this.canvasContext,e.x,e.y,c.x,c.y)}};x.prototype.resetCanvas=function(b,a){var c=this.canvas,e=this.settings,h=this.canvasContext,m=this.isCanvasEmulator,g=c.width,l=c.height;a||h.clearRect(0,0,g+30,l+30);h.shadowColor=h.fillStyle=e["background-color"];m&&h.fillRect(0,0,g+30,l+30);h.lineWidth=Math.ceil(parseInt(e.lineWidth,10));h.lineCap=
h.lineJoin="round";if(e.signatureLine){if(null!=e["decor-color"]){h.strokeStyle=e["decor-color"];h.shadowOffsetX=0;h.shadowOffsetY=0;var k=Math.round(l/5);z(h,1.5*k,l-k,g-1.5*k,l-k)}m||(h.shadowColor=h.strokeStyle,h.shadowOffsetX=.5*h.lineWidth,h.shadowOffsetY=-.6*h.lineWidth,h.shadowBlur=0)}h.strokeStyle=e.color;b||(b=[]);h=this.dataEngine=new n(b,this,D,f,d);e.data=b;$(c).data("jSignature.data",b).data("jSignature.settings",e);h.changed=function(a,b,c){return function(){b.publish(c+".change");a.trigger("change")}}(this.$parent,
this.events,"jSignature");h.changed();return!0};x.prototype.initializeCanvas=function(b){var a=document.createElement("canvas"),c=$(a);b.width===b.height&&"ratio"===b.height&&(b.width="100%");c.css({margin:0,padding:0,border:"none",height:"ratio"!==b.height&&b.height?b.height.toString(10):1,width:"ratio"!==b.width&&b.width?b.width.toString(10):1,"-ms-touch-action":"none","touch-action":"none","background-color":b["background-color"]});c.appendTo(this.$parent);"ratio"===b.height?c.css("height",Math.round(c.width()/
b.sizeRatio)):"ratio"===b.width&&c.css("width",Math.round(c.height()*b.sizeRatio));c.addClass("jSignature");a.width=c.width();a.height=c.height();this.isCanvasEmulator=y(a);a.onselectstart=function(a){a&&a.preventDefault&&a.preventDefault();a&&a.stopPropagation&&a.stopPropagation();return!1};return a};(function(b){function a(a,b,c){var d=new Image,e=this;d.onload=function(){var a=e.getContext("2d"),b=a.shadowColor;a.shadowColor="transparent";a.drawImage(d,0,0,d.width<e.width?d.width:e.width,d.height<
e.height?d.height:e.height);a.shadowColor=b};d.src="data:"+b+","+a}function c(a,b){this.find("canvas.jSignature").add(this.filter("canvas.jSignature")).data("jSignature.this").resetCanvas(a,b);return this}function d(a,b){if(void 0===b&&"string"===typeof a&&"data:"===a.substr(0,5)&&(b=a.slice(5).split(",")[0],a=a.slice(6+b.length),b===a))return;var c=this.find("canvas.jSignature").add(this.filter("canvas.jSignature"));if(l.hasOwnProperty(b))0!==c.length&&l[b].call(c[0],a,b,function(a){return function(){return a.resetCanvas.apply(a,
arguments)}}(c.data("jSignature.this")));else throw Error("jSignature is unable to find import plugin with for format '"+String(b)+"'");return this}var h=new v;(function(a,b,c,d){var e,h=function(){a.publish(b+".parentresized")};c(d).bind("resize."+b,function(){e&&clearTimeout(e);e=setTimeout(h,500)}).bind("mouseup."+b,function(c){a.publish(b+".windowmouseup")})})(h,"jSignature",$,b);var f={},g={"default":function(a){return this.toDataURL()},"native":function(a){return a},image:function(a){a=this.toDataURL();
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importData:d,setData:d,globalEvents:function(){return h},disable:function(){this.find("input").attr("disabled",1);this.find("canvas.jSignature").addClass("disabled").data("jSignature.this").settings.readOnly=!0},enable:function(){this.find("input").removeAttr("disabled");this.find("canvas.jSignature").removeClass("disabled").data("jSignature.this").settings.readOnly=!1},events:function(){return this.find("canvas.jSignature").add(this.filter("canvas.jSignature")).data("jSignature.this").events}};$.fn.jSignature=
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(function(){function t(k,g,n){k=k.call(this);(function(g,k,n){g.events.subscribe(n+".change",function(){g.dataEngine.data.length?k.show():k.hide()})})(this,k,g);(function(g,k,n){var r=n+".undo";k.bind("click",function(){g.events.publish(r)});g.events.subscribe(r,function(){var k=g.dataEngine.data;k.length&&(k.pop(),g.resetCanvas(k))})})(this,k,this.events.topics.hasOwnProperty(g+".undo")?n:g)}$.fn.jSignature("addPlugin","instance","UndoButton",function(k){this.events.subscribe("jSignature.attachingEventHandlers",
function(){if(this.settings[k]){var g=this.settings[k];"function"!==typeof g&&(g=function(){var g=$('<input type="button" value="Undo last stroke" style="position:absolute;display:none;margin:0 !important;top:auto" />').appendTo(this.$controlbarLower),k=g.width();g.css("left",Math.round((this.canvas.width-k)/2));k!==g.width()&&g.width(k);return g});t.call(this,g,"jSignature",k)}})})})();
(function(){for(var t={},k={},g="0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWX".split(""),n=g.length/2,r=n-1;-1<r;r--)t[g[r]]=g[r+n],k[g[r+n]]=g[r];var x=function(d){d=d.split("");for(var b=d.length,a=1;a<b;a++)d[a]=t[d[a]];return d.join("")},y=function(d){for(var b=[],a=0,c=1,e=d.length,h,f,g=0;g<e;g++)h=Math.round(d[g]),f=h-a,a=h,0>f&&0<c?(c=-1,b.push("Z")):0<f&&0>c&&(c=1,b.push("Y")),h=Math.abs(f),h>=n?b.push(x(h.toString(n))):b.push(h.toString(n));return b.join("")},w=function(d){var b=
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