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3 lines
23 KiB
JavaScript
3 lines
23 KiB
JavaScript
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n=this.getLength()*t.getLength();return 0===n?0:Math.acos(Math.min(Math.max((this.x*t.x+this.y*t.y)/n,-1),1))/Math.PI}}function e(t,e){this.x=t,this.y=e,this.getVectorToCoordinates=function(t,e){return new n(t-this.x,e-this.y)},this.getVectorFromCoordinates=function(t,n){return this.getVectorToCoordinates(t,n).reverse()},this.getVectorToPoint=function(t){return new n(t.x-this.x,t.y-this.y)},this.getVectorFromPoint=function(t){return this.getVectorToPoint(t).reverse()}}function i(t,n,e,i,r){if(this.data=t,this.context=n,t.length)for(var a,s,o=t.length,h=0;h<o;h++){a=t[h],s=a.x.length,e.call(n,a);for(var u=1;u<s;u++)i.call(n,a,u);r.call(n,a)}this.changed=function(){},this.startStrokeFn=e,this.addToStrokeFn=i,this.endStrokeFn=r,this.inStroke=!1,this._stroke=this._lastPoint=null,this.startStroke=function(t){if(t&&"number"==typeof t.x&&"number"==typeof t.y){this._stroke={x:[t.x],y:[t.y]},this.data.push(this._stroke),this._lastPoint=t,this.inStroke=!0;var n=this._stroke,e=this.startStrokeFn,i=this.context;return setTimeout(function(){e.call(i,n)},3),t}return null},this.addToStroke=function(t){if(this.inStroke&&"number"==typeof t.x&&"number"==typeof t.y&&4<Math.abs(t.x-this._lastPoint.x)+Math.abs(t.y-this._lastPoint.y)){var n=this._stroke.x.length;this._stroke.x.push(t.x),this._stroke.y.push(t.y),this._lastPoint=t;var e=this._stroke,i=this.addToStrokeFn,r=this.context;return setTimeout(function(){i.call(r,e,n)},3),t}return null},this.endStroke=function(){var t=this.inStroke;if(this.inStroke=!1,this._lastPoint=null,t){var n=this._stroke,e=this.endStrokeFn,i=this.context,r=this.changed;return setTimeout(function(){e.call(i,n),r.call(i)},3),!0}return null}}function r(t,n,e,i){"ratio"!==n&&"%"!==n.split("")[n.length-1]||(this.eventTokens[e+".parentresized"]=i.subscribe(e+".parentresized",function(n,r,a,s){return function(){var s=r.width();if(s!==a){for(var o in n)n.hasOwnProperty(o)&&(i.unsubscribe(n[o]),delete n[o]);var h=t.settings;t.$parent.children().remove();for(o in t)t.hasOwnProperty(o)&&delete t[o];o=h.data,s=1*s/a;var u,c,l=[],d=0;for(u=o.length;d<u;d++){var g=o[d],f={x:[],y:[]},p=0;for(c=g.x.length;p<c;p++)f.x.push(g.x[p]*s),f.y.push(g.y[p]*s);l.push(f)}h.data=l,r[e](h)}}}(this.eventTokens,this.$parent,this.$parent.width(),1*this.canvas.width/this.canvas.height)))}function a(n,i,a){var s=this.$parent=$(n);n=this.eventTokens={},this.events=new h(this);var u=$.fn.jSignature("globalEvents"),c={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};$.extend(c,t(s)),i&&$.extend(c,i),this.settings=c;for(var l in a)a.hasOwnProperty(l)&&a[l].call(this,l);return 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; 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0,this.fatFingerCompensation=c.minFatFingerCompensation&&-3*c.lineWidth>c.minFatFingerCompensation?-3*c.lineWidth:c.minFatFingerCompensation,n(r),a?(i.addEventListener("touchend",t),i.addEventListener("touchstart",n),i.addEventListener("touchmove",e)):(i.ontouchend=t,i.ontouchstart=n,i.ontouchmove=e)},a?i.addEventListener("touchstart",this.ontouchstart):i.ontouchstart=ontouchstart,i.onmousedown=function(r){a?i.removeEventListener("touchstart",this.ontouchstart):i.ontouchstart=i.ontouchend=i.ontouchmove=void 0,n(r),i.onmousedown=n,i.onmouseup=t,i.onmousemove=e},window.navigator.msPointerEnabled&&(i.onmspointerdown=n,i.onmspointerup=t,i.onmspointermove=e)}}.call(this,s.drawEndHandler,s.drawStartHandler,s.drawMoveHandler),n["jSignature.windowmouseup"]=u.subscribe("jSignature.windowmouseup",s.drawEndHandler),this.events.publish("jSignature.attachingEventHandlers"),r.call(this,this,c.width.toString(10),"jSignature",u),this.resetCanvas(c.data),this.events.publish("jSignature.initialized"),this}function s(t){if(t.getContext)return!1;var n=t.ownerDocument.parentWindow,e=n.FlashCanvas?t.ownerDocument.parentWindow.FlashCanvas:"undefined"==typeof FlashCanvas?void 0:FlashCanvas;if(e){if(t=e.initElement(t),e=1,n&&n.screen&&n.screen.deviceXDPI&&n.screen.logicalXDPI&&(e=1*n.screen.deviceXDPI/n.screen.logicalXDPI),1!==e)try{$(t).children("object").get(0).resize(Math.ceil(t.width*e),Math.ceil(t.height*e)),t.getContext("2d").scale(e,e)}catch(i){}return!0}throw Error("Canvas element does not support 2d context. jSignature cannot proceed.")}var o=function(t,n){var e;return this.kick=function(){clearTimeout(e),e=setTimeout(n,t)},this.clear=function(){clearTimeout(e)},this},h=function(t){this.topics={},this.context=t?t:this,this.publish=function(t,n,e,i){if(this.topics[t]){var r,a=this.topics[t],s=Array.prototype.slice.call(arguments,1),o=[],h=[],u=0;for(r=a.length;u<r;u++){var c=a[u],l=c[0];c[1]&&(c[0]=function(){},o.push(u)),h.push(l)}for(u=0,r=o.length;u<r;u++)a.splice(o[u],1);for(u=0,r=h.length;u<r;u++)h[u].apply(this.context,s)}},this.subscribe=function(t,n,e){return this.topics[t]?this.topics[t].push([n,e]):this.topics[t]=[[n,e]],{topic:t,callback:n}},this.unsubscribe=function(t){if(this.topics[t.topic])for(var n=this.topics[t.topic],e=0,i=n.length;e<i;e++)n[e]&&n[e][0]===t.callback&&n.splice(e,1)}},u=function(t,n,e,i,r){t.beginPath(),t.moveTo(n,e),t.lineTo(i,r),t.closePath(),t.stroke()},c=function(t){var n=this.canvasContext,e=t.x[0];t=t.y[0];var i=this.settings.lineWidth,r=n.fillStyle;n.fillStyle=n.strokeStyle,n.fillRect(e+i/-2,t+i/-2,i,i),n.fillStyle=r},l=function(t,i){var r=new e(t.x[i-1],t.y[i-1]),a=new e(t.x[i],t.y[i]),s=r.getVectorToPoint(a);if(1<i){var o=new e(t.x[i-2],t.y[i-2]),h=o.getVectorToPoint(r);if(h.getLength()>this.lineCurveThreshold){var c=2<i?new e(t.x[i-3],t.y[i-3]).getVectorToPoint(o):new n(0,0),l=.35*h.getLength(),d=h.angleTo(c.reverse()),g=s.angleTo(h.reverse());c=new n(c.x+h.x,c.y+h.y).resizeTo(Math.max(.05,d)*l);var f=new n(h.x+s.x,h.y+s.y).reverse().resizeTo(Math.max(.05,g)*l);h=this.canvasContext,l=o.x,g=o.y,d=r.x;var p=r.y,v=o.x+c.x;o=o.y+c.y,c=r.x+f.x,f=r.y+f.y,h.beginPath(),h.moveTo(l,g),h.bezierCurveTo(v,o,c,f,d,p),h.closePath(),h.stroke()}}s.getLength()<=this.lineCurveThreshold&&u(this.canvasContext,r.x,r.y,a.x,a.y)},d=function(t){var i=t.x.length-1;if(0<i){var r=new e(t.x[i],t.y[i]),a=new e(t.x[i-1],t.y[i-1]),s=a.getVectorToPoint(r);if(s.getLength()>this.lineCurveThreshold)if(1<i){t=new e(t.x[i-2],t.y[i-2]).getVectorToPoint(a);var o=new n(t.x+s.x,t.y+s.y).resizeTo(s.getLength()/2);s=this.canvasContext,t=a.x,i=a.y;var h=r.x,c=r.y,l=a.x+o.x;a=a.y+o.y,o=r.x,r=r.y,s.beginPath(),s.moveTo(t,i),s.bezierCurveTo(l,a,o,r,h,c),s.closePath(),s.stroke()}else u(this.canvasContext,a.x,a.y,r.x,r.y)}};a.prototype.resetCanvas=function(t,n){var e=this.canvas,r=this.settings,a=this.canvasContext,s=this.isCanvasEmulator,o=e.width,h=e.height;if(n||a.clearRect(0,0,o+30,h+30),a.shadowColor=a.fillStyle=r["background-color"],s&&a.fillRect(0,0,o+30,h+30),a.lineWidth=Math.ceil(parseInt(r.lineWidth,10)),a.lineCap=a.lineJoin="round",r.signatureLine){if(null!=r["decor-color"]){a.strokeStyle=r["decor-color"],a.shadowOffsetX=0,a.shadowOffsetY=0;var g=Math.round(h/5);u(a,1.5*g,h-g,o-1.5*g,h-g)}s||(a.shadowColor=a.strokeStyle,a.shadowOffsetX=.5*a.lineWidth,a.shadowOffsetY=-.6*a.lineWidth,a.shadowBlur=0)}return a.strokeStyle=r.color,t||(t=[]),a=this.dataEngine=new i(t,this,c,l,d),r.data=t,$(e).data("jSignature.data",t).data("jSignature.settings",r),a.changed=function(t,n,e){return function(){n.publish(e+".change"),t.trigger("change")}}(this.$parent,this.events,"jSignature"),a.changed(),!0},a.prototype.initializeCanvas=function(t){var n=document.createElement("canvas"),e=$(n);return t.width===t.height&&"ratio"===t.height&&(t.width="100%"),e.css({margin:0,padding:0,border:"none",height:"ratio"!==t.height&&t.height?t.height.toString(10):1,width:"ratio"!==t.width&&t.width?t.width.toString(10):1,"-ms-touch-action":"none","touch-action":"none","background-color":t["background-color"]}),e.appendTo(this.$parent),"ratio"===t.height?e.css("height",Math.round(e.width()/t.sizeRatio)):"ratio"===t.width&&e.css("width",Math.round(e.height()*t.sizeRatio)),e.addClass("jSignature"),n.width=e.width(),n.height=e.height(),this.isCanvasEmulator=s(n),n.onselectstart=function(t){return t&&t.preventDefault&&t.preventDefault(),t&&t.stopPropagation&&t.stopPropagation(),!1},n},function(t){function n(t,n,e){var i=new Image,r=this;i.onload=function(){var t=r.getContext("2d"),n=t.shadowColor;t.shadowColor="transparent",t.drawImage(i,0,0,i.width<r.width?i.width:r.width,i.height<r.height?i.height:r.height),t.shadowColor=n},i.src="data:"+n+","+t}function e(t,n){return this.find("canvas.jSignature").add(this.filter("canvas.jSignature")).data("jSignature.this").resetCanvas(t,n),this}function i(t,n){if(void 0!==n||"string"!=typeof t||"data:"!==t.substr(0,5)||(n=t.slice(5).split(",")[0],t=t.slice(6+n.length),n!==t)){var e=this.find("canvas.jSignature").add(this.filter("canvas.jSignature"));if(!u.hasOwnProperty(n))throw Error("jSignature is unable to find import plugin with for format '"+String(n)+"'");return 0!==e.length&&u[n].call(e[0],t,n,function(t){return function(){return t.resetCanvas.apply(t,arguments)}}(e.data("jSignature.this"))),this}}var r=new h;!function(t,n,e,i){var r,a=function(){t.publish(n+".parentresized")};e(i).bind("resize."+n,function(){r&&clearTimeout(r),r=setTimeout(a,500)}).bind("mouseup."+n,function(e){t.publish(n+".windowmouseup")})}(r,"jSignature",$,t);var s={},o={"default":function(t){return this.toDataURL()},"native":function(t){return t},image:function(t){if(t=this.toDataURL(),"string"==typeof t&&4<t.length&&"data:"===t.slice(0,5)&&-1!==t.indexOf(",")){var n=t.indexOf(",");return[t.slice(5,n),t.substr(n+1)]}return[]}},u={"native":function(t,n,e){e(t)},image:n,"image/png;base64":n,"image/jpeg;base64":n,"image/jpg;base64":n},c=function(t){var n=!1;for(t=t.parentNode;t&&!n;)n=t.body,t=t.parentNode;return!n},l={"export":o,"import":u,instance:s},d={init:function(t){return this.each(function(){c(this)||new a(this,t,s)})},destroy:function(){return this.each(function(){if(!c(this)){var t=$(this).find("canvas").data("jSignature.this");if(t){t.$controlbarLower.remove(),t.$controlbarUpper.remove(),$(t.canvas).remove();for(var n in t.eventTokens)t.eventTokens.hasOwnProperty(n)&&r.unsubscribe(t.eventTokens[n])}}})},getSettings:function(){return this.find("canvas.jSignature").add(this.filter("canvas.jSignature")).data("jSignature.this").settings},isModified:function(){return null!==this.find("canvas.jSignature").add(this.filter("canvas.jSignature")).data("jSignature.this").dataEngine._stroke},updateSetting:function(t,n,e){var i=this.find("canvas.jSignature").add(this.filter("canvas.jSignature")).data("jSignature.this");return i.settings[t]=n,i.resetCanvas(e?null:i.settings.data,!0),i.settings[t]},clear:e,reset:e,addPlugin:function(t,n,e){return l.hasOwnProperty(t)&&(l[t][n]=e),this},listPlugins:function(t){var n=[];if(l.hasOwnProperty(t)){t=l[t];for(var e in t)t.hasOwnProperty(e)&&n.push(e)}return n},getData:function(t){var n=this.find("canvas.jSignature").add(this.filter("canvas.jSignature"));if(void 0===t&&(t="default"),0!==n.length&&o.hasOwnProperty(t))return o[t].call(n.get(0),n.data("jSignature.data"),n.data("jSignature.settings"))},importData:i,setData:i,globalEvents:function(){return r},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=function(t){return t&&"object"!=typeof t?"string"==typeof t&&d[t]?d[t].apply(this,Array.prototype.slice.call(arguments,1)):void $.error("Method "+String(t)+" does not exist on jQuery.jSignature"):d.init.apply(this,arguments)}}(window)}(),function(){function t(t,n,e){t=t.call(this),function(t,n,e){t.events.subscribe(e+".change",function(){t.dataEngine.data.length?n.show():n.hide()})}(this,t,n),function(t,n,e){var i=e+".undo";n.bind("click",function(){t.events.publish(i)}),t.events.subscribe(i,function(){var n=t.dataEngine.data;n.length&&(n.pop(),t.resetCanvas(n))})}(this,t,this.events.topics.hasOwnProperty(n+".undo")?e:n)}$.fn.jSignature("addPlugin","instance","UndoButton",function(n){this.events.subscribe("jSignature.attachingEventHandlers",function(){if(this.settings[n]){var e=this.settings[n];"function"!=typeof e&&(e=function(){var t=$('<input type="button" value="Undo last stroke" style="position:absolute;display:none;margin:0 !important;top:auto" />').appendTo(this.$controlbarLower),n=t.width();return t.css("left",Math.round((this.canvas.width-n)/2)),n!==t.width()&&t.width(n),t}),t.call(this,e,"jSignature",n)}})})}(),function(){for(var t={},n={},e="0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWX".split(""),i=e.length/2,r=i-1;-1<r;r--)t[e[r]]=e[r+i],n[e[r+i]]=e[r];var a=function(n){n=n.split("");for(var e=n.length,i=1;i<e;i++)n[i]=t[n[i]];return n.join("")},s=function(t){for(var n,e,r=[],s=0,o=1,h=t.length,u=0;u<h;u++)n=Math.round(t[u]),e=n-s,s=n,0>e&&0<o?(o=-1,r.push("Z")):0<e&&0>o&&(o=1,r.push("Y")),n=Math.abs(e),n>=i?r.push(a(n.toString(i))):r.push(n.toString(i));return r.join("")},o=function(e){var r=[];e=e.split("");for(var a,s=e.length,o=1,h=[],u=0,c=0;c<s;c++)a=e[c],a in t||"Z"===a||"Y"===a?(0!==h.length&&(h=parseInt(h.join(""),i)*o+u,r.push(h),u=h),"Z"===a?(o=-1,h=[]):"Y"===a?(o=1,h=[]):h=[a]):h.push(n[a]);return r.push(parseInt(h.join(""),i)*o+u),r},h=function(t){for(var n,e=[],i=t.length,r=0;r<i;r++)n=t[r],e.push(s(n.x)),e.push(s(n.y));return e.join("_")},u=function(t){var n=[];t=t.split("_");for(var e=t.length/2,i=0;i<e;i++)n.push({x:o(t[2*i]),y:o(t[2*i+1])});return 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