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File: jSignature.min.js

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  Classes of Gianluca Zanferrari  >  Sign on display  >  jSignature.min.js  >  Download  
File: jSignature.min.js
Role: Auxiliary data
Content type: text/plain
Description: Auxiliary data
Class: Sign on display
Insert a captured person signature in a PDF file
Author: By
Last change:
Date: 1 year ago
Size: 21,950 bytes
 

Contents

Class file image Download
/*

jSignature v2
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> 


jSignature v2 jSignature's Undo Button and undo functionality plugin
Copyright (c) 2011 Willow Systems Corp http://willow-systems.com
MIT License <http://www.opensource.org/licenses/mit-license.php>


jSignature v2 jSignature's custom "base30" format export and import plugins.
Copyright (c) 2011 Willow Systems Corp http://willow-systems.com
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 SVG export plugin.
Copyright (c) 2012 Willow Systems Corp http://willow-systems.com
MIT License <http://www.opensource.org/licenses/mit-license.php>

*/
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this.fatFingerCompensation=0;var c=function(a){var f,b,c=function(c){c=c.changedTouches&&0<c.changedTouches.length?c.changedTouches[0]:c;return new h(Math.round(c.pageX+f),Math.round(c.pageY+b)+a.fatFingerCompensation)},o=new y(750,function(){a.dataEngine.endStroke()});this.drawEndHandler=function(f){try{f.preventDefault()}catch(b){}o.clear();a.dataEngine.endStroke()};this.drawStartHandler=function(d){d.preventDefault();var g=$(a.canvas).offset();f=-1*g.left;b=-1*g.top;a.dataEngine.startStroke(c(d));
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function(a,f,b){return function(){var c=f.width();if(c!==b){for(var o in a)if(a.hasOwnProperty(o)){g.unsubscribe(a[o]);delete a[o]}var d=q.settings;q.$parent.children().remove();for(o in q)q.hasOwnProperty(o)&&delete q[o];o=d.data;var c=c*1/b,x=[],j,i,e,k,h,n;i=0;for(e=o.length;i<e;i++){n=o[i];j={x:[],y:[]};k=0;for(h=n.x.length;k<h;k++){j.x.push(n.x[k]*c);j.y.push(n.y[k]*c)}x.push(j)}d.data=x;f[w](d)}}}(this.eventTokens,this.$parent,this.$parent.width(),1*this.canvas.width/this.canvas.height));this.resetCanvas(d.data);
this.events.publish(e+".initialized");return this}var e="jSignature",y=function(a,f){var b;this.kick=function(){clearTimeout(b);b=setTimeout(f,a)};this.clear=function(){clearTimeout(b)};return this},t=function(a){this.topics={};this.context=a?a:this;this.publish=function(a,b,c,d){if(this.topics[a]){var g=this.topics[a],j=Array.prototype.slice.call(arguments,1),i=[],k,e,h,n;e=0;for(h=g.length;e<h;e++)n=g[e],k=n[0],n[1]&&(n[0]=function(){},i.push(e)),k.apply(this.context,j);e=0;for(h=i.length;e<h;e++)g.splice(i[e],
1)}};this.subscribe=function(a,b,c){this.topics[a]?this.topics[a].push([b,c]):this.topics[a]=[[b,c]];return{topic:a,callback:b}};this.unsubscribe=function(a){if(this.topics[a.topic])for(var b=this.topics[a.topic],c=0,d=b.length;c<d;c++)b[c][0]===a.callback&&b.splice(c,1)}},z=function(a){var f=this.canvasContext,b=a.x[0],a=a.y[0],c=this.settings.lineWidth,d=f.fillStyle;f.fillStyle=f.strokeStyle;f.fillRect(b+c/-2,a+c/-2,c,c);f.fillStyle=d},u=function(a,f){var b=new h(a.x[f-1],a.y[f-1]),c=new h(a.x[f],
a.y[f]),d=b.getVectorToPoint(c);if(1<f){var g=new h(a.x[f-2],a.y[f-2]),j=g.getVectorToPoint(b),i;if(j.getLength()>this.lineCurveThreshold){i=2<f?(new h(a.x[f-3],a.y[f-3])).getVectorToPoint(g):new m(0,0);var e=0.35*j.getLength(),k=j.angleTo(i.reverse()),n=d.angleTo(j.reverse());i=(new m(i.x+j.x,i.y+j.y)).resizeTo(Math.max(0.05,k)*e);var l=(new m(j.x+d.x,j.y+d.y)).reverse().resizeTo(Math.max(0.05,n)*e),j=this.canvasContext,e=g.x,n=g.y,k=b.x,q=b.y,w=g.x+i.x,g=g.y+i.y;i=b.x+l.x;l=b.y+l.y;j.beginPath();
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i=c.x,e=c.y,k=d.x+j.x,d=d.y+j.y,j=c.x,c=c.y;g.beginPath();g.moveTo(a,b);g.bezierCurveTo(k,d,j,c,i,e)}else g=this.canvasContext,a=d.x,d=d.y,b=c.x,c=c.y,g.beginPath(),g.moveTo(a,d),g.lineTo(b,c);g.stroke()}}};p.prototype.resetCanvas=function(a){var b=this.canvas,c=this.settings,d=this.canvasContext,g=this.isCanvasEmulator,j=b.width,i=b.height;d.clearRect(0,0,j+30,i+30);d.shadowColor=d.fillStyle=c["background-color"];g&&d.fillRect(0,0,j+30,i+30);d.lineWidth=Math.ceil(parseInt(c.lineWidth,10));d.lineCap=
d.lineJoin="round";d.strokeStyle=c["decor-color"];d.shadowOffsetX=0;d.shadowOffsetY=0;var k=Math.round(i/5),n=1.5*k,h=i-k,j=j-1.5*k,i=i-k;d.beginPath();d.moveTo(n,h);d.lineTo(j,i);d.stroke();d.strokeStyle=c.color;g||(d.shadowColor=d.strokeStyle,d.shadowOffsetX=0.5*d.lineWidth,d.shadowOffsetY=-0.6*d.lineWidth,d.shadowBlur=0);a||(a=[]);d=this.dataEngine=new s(a,this,z,u,v);c.data=a;$(b).data(e+".data",a).data(e+".settings",c);var l=this.$parent,q=this.events,w=e;d.changed=function(){q.publish(w+".change");
l.trigger("change")};d.changed();return!0};p.prototype.initializeCanvas=function(a){var b=document.createElement("canvas"),c=$(b);a.width===a.height&&"ratio"===a.height&&(a.width="100%");c.css("margin",0).css("padding",0).css("border","none").css("height","ratio"===a.height||!a.height?1:a.height.toString(10)).css("width","ratio"===a.width||!a.width?1:a.width.toString(10));c.appendTo(this.$parent);"ratio"===a.height?c.css("height",Math.round(c.width()/a.sizeRatio)):"ratio"===a.width&&c.css("width",
Math.round(c.height()*a.sizeRatio));c.addClass(e);b.width=c.width();b.height=c.height();a=b;if(a.getContext)a=!1;else if("undefined"!==typeof FlashCanvas)a=FlashCanvas.initElement(a),c=1,window&&(window.screen&&window.screen.deviceXDPI&&window.screen.logicalXDPI)&&(c=1*window.screen.deviceXDPI/window.screen.logicalXDPI),1!==c&&($(a).children("object").get(0).resize(Math.ceil(a.width*c),Math.ceil(a.height*c)),a.getContext("2d").scale(c,c)),a=!0;else throw Error("Canvas element does not support 2d context. jSignature cannot proceed.");
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typeof a&&"data:"===a.substr(0,5))&&(b=a.slice(5).split(",")[0],a=a.slice(6+b.length),b===a))return;var c=this.find("canvas."+e).add(this.filter("canvas."+e));if(w.hasOwnProperty(b))0!==c.length&&w[b].call(c[0],a,b,function(a){return function(){return a.resetCanvas.apply(a,arguments)}}(c.data(e+".this")));else throw Error(e+" is unable to find import plugin with for format '"+String(b)+"'");return this},d=new t,g=e,c,j=function(){d.publish(g+".parentresized")};$(window).bind("resize."+g,function(){c&&
clearTimeout(c);c=setTimeout(j,500)}).bind("mouseup."+g,function(a){d.publish(g+".windowmouseup",a)});var i={},n={"default":function(){return this.toDataURL()},"native":function(a){return a},image:function(){var a=this.toDataURL();if("string"===typeof a&&4<a.length&&"data:"===a.slice(0,5)&&-1!==a.indexOf(",")){var b=a.indexOf(",");return[a.slice(5,b),a.substr(b+1)]}return[]}},w={"native":function(a,b,c){c(a)},image:k,"image/png;base64":k,"image/jpeg;base64":k,"image/jpg;base64":k},l={"export":n,"import":w,
instance:i},A={init:function(a){return this.each(function(){var b,c=!1;for(b=this.parentNode;b&&!c;)c=b.body,b=b.parentNode;!c||new p(this,a,i)})},getSettings:function(){return this.find("canvas."+e).add(this.filter("canvas."+e)).data(e+".this").settings},clear:q,reset:q,addPlugin:function(a,b,c){l.hasOwnProperty(a)&&(l[a][b]=c);return this},listPlugins:function(a){var b=[];if(l.hasOwnProperty(a)){var a=l[a],c;for(c in a)a.hasOwnProperty(c)&&b.push(c)}return b},getData:function(a){var b=this.find("canvas."+
e).add(this.filter("canvas."+e));void 0===a&&(a="default");if(0!==b.length&&n.hasOwnProperty(a))return n[a].call(b.get(0),b.data(e+".data"))},importData:b,setData:b,globalEvents:function(){return d},events:function(){return this.find("canvas."+e).add(this.filter("canvas."+e)).data(e+".this").events}};$.fn[e]=function(a){if(!a||"object"===typeof a)return A.init.apply(this,arguments);if("string"===typeof a&&A[a])return A[a].apply(this,Array.prototype.slice.call(arguments,1));$.error("Method "+String(a)+
" does not exist on jQuery."+e)}})();
(function(){$.fn.jSignature("addPlugin","instance","UndoButton",function(r){this.events.subscribe("jSignature.attachingEventHandlers",function(){if(this.settings[r]){var m=this.settings[r];"function"!==typeof m&&(m=function(){var e=$('<input type="button" value="Undo last stroke" style="position:absolute;display:none;margin:0 !important;top:auto" />').appendTo(this.$controlbarLower),h=e.width();e.css("left",Math.round((this.canvas.width-h)/2));h!==e.width()&&e.width(h);return e});var h=m.call(this),
s=this;s.events.subscribe("jSignature.change",function(){s.dataEngine.data.length?h.show():h.hide()});var p=this,e=(this.events.topics.hasOwnProperty("jSignature.undo")?r:"jSignature")+".undo";h.bind("click",function(){p.events.publish(e)});p.events.subscribe(e,function(){var e=p.dataEngine.data;e.length&&(e.pop(),p.resetCanvas(e))})}})})})();
(function(){for(var r={},m={},h="0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWX".split(""),s=h.length/2,p=s-1;-1<p;p--)r[h[p]]=h[p+s],m[h[p+s]]=h[p];var e=function(e){for(var e=e.split(""),h=e.length,b=1;b<h;b++)e[b]=r[e[b]];return e.join("")},y=function(h){for(var q=[],b=0,d=1,g=h.length,c,j,i=0;i<g;i++)c=Math.round(h[i]),j=c-b,b=c,0>j&&0<d?(d=-1,q.push("Z")):0<j&&0>d&&(d=1,q.push("Y")),c=Math.abs(j),c>=s?q.push(e(c.toString(s))):q.push(c.toString(s));return q.join("")},t=function(e){for(var h=
[],e=e.split(""),b=e.length,d,g=1,c=[],j=0,i=0;i<b;i++)(d=e[i],d in r||"Z"===d||"Y"===d)?(0!==c.length&&(c=parseInt(c.join(""),s)*g+j,h.push(c),j=c),"Z"===d)?(g=-1,c=[]):"Y"===d?(g=1,c=[]):c=[d]:c.push(m[d]);h.push(parseInt(c.join(""),s)*g+j);return h},z=function(e){for(var h=[],b=e.length,d,g=0;g<b;g++)d=e[g],h.push(y(d.x)),h.push(y(d.y));return h.join("_")},u=function(e){for(var h=[],e=e.split("_"),b=e.length/2,d=0;d<b;d++)h.push({x:t(e[2*d]),y:t(e[2*d+1])});return h},h=function(e){return["image/jsignature;base30",
z(e)]},p=function(e,h,b){"string"===typeof e&&("image/jsignature;base30"===e.substring(0,23).toLowerCase()&&(e=e.substring(24)),b(u(e)))};if(null==this.jQuery)throw Error("We need jQuery for some of the functionality. jQuery is not detected. Failing to initialize...");var v=this.jQuery.fn.jSignature;v("addPlugin","export","base30",h);v("addPlugin","export","image/jsignature;base30",h);v("addPlugin","import","base30",p);v("addPlugin","import","image/jsignature;base30",p);this.jSignatureDebug&&(this.jSignatureDebug.base30=
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