joint.core.min.js

/*! Rappid v3.1.1 - HTML5 Diagramming Framework - TRIAL VERSION

Copyright (c) 2015 client IO

 2020-06-11 


This Source Code Form is subject to the terms of the Rappid Trial License
, v. 2.0. If a copy of the Rappid License was not distributed with this
file, You can obtain one at http://jointjs.com/license/rappid_v2.txt
 or from the Rappid archive as was distributed by client IO. See the LICENSE file.*/



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u||c?n=o*o/(i-h)-o*o*(r-l)*((e=i>a.x?r-30:r+30)-l)/(s*s*(i-h))+h:e=s*s/(r-l)-s*s*(i-h)*((n=r>a.y?i+30:i-30)-h)/(o*o*(r-l))+l,new z(n,e).theta(t)},toString:function(){return new z(this.x,this.y).toString()+" "+this.a+" "+this.b}};var O=function(t,e){return this instanceof O?t instanceof O?new O(t.start,t.end):(this.start=new z(t),void(this.end=new z(e))):new O(t,e)};O.prototype={angle:function(){var t=new z(this.start.x+1,this.start.y);return this.start.angleBetween(this.end,t)},bbox:function(){var t=B(this.start.x,this.end.x),e=B(this.start.y,this.end.y),n=R(this.start.x,this.end.x),i=R(this.start.y,this.end.y);return new X(t,e,n-t,i-e)},bearing:function(){var t=A(this.start.y),e=A(this.end.y),n=this.start.x,i=this.end.x,r=A(i-n),o=c(r)*u(e),s=u(t)*c(e)-c(t)*u(e)*u(r),a=y(d(o,s))-22.5;return a<0&&(a+=360),["NE","E","SE","S","SW","W","NW","N"][a=parseInt(a/45)]},clone:function(){return new O(this.start,this.end)},closestPoint:function(t){return this.pointAt(this.closestPointNormalizedLength(t))},closestPointLength:function(t){return this.closestPointNormalizedLength(t)*this.length()},closestPointNormalizedLength:function(t){var e=this.vector().dot(new O(this.start,t).vector()),n=B(1,R(0,e/this.squaredLength()));return n!=n?0:n},closestPointTangent:function(t){return this.tangentAt(this.closestPointNormalizedLength(t))},containsPoint:function(t){var e=this.start,n=this.end;if(0!==e.cross(t,n))return!1;var i=this.length();return!(new O(e,t).length()>i)&&!(new O(t,n).length()>i)},divideAt:function(t){var e=this.pointAt(t);return[new O(this.start,e),new O(e,this.end)]},divideAtLength:function(t){var e=this.pointAtLength(t);return[new O(this.start,e),new O(e,this.end)]},equals:function(t){return!!t&&this.start.x===t.start.x&&this.start.y===t.start.y&&this.end.x===t.end.x&&this.end.y===t.end.y},intersect:function(t,e){if(t instanceof O||t instanceof X||t instanceof L||t instanceof x||t instanceof D){var n=t.intersectionWithLine(this,e);return n&&t instanceof O&&(n=n[0]),n}return null},intersectionWithLine:function(t){var e=new z(this.end.x-this.start.x,this.end.y-this.start.y),n=new z(t.end.x-t.start.x,t.end.y-t.start.y),i=e.x*n.y-e.y*n.x,r=new z(t.start.x-this.start.x,t.start.y-this.start.y),o=r.x*n.y-r.y*n.x,s=r.x*e.y-r.y*e.x;if(0===i||o*i<0||s*i<0)return null;if(0<i){if(i<o||i<s)return null}else if(o<i||s<i)return null;return[new z(this.start.x+o*e.x/i,this.start.y+o*e.y/i)]},isDifferentiable:function(){return!this.start.equals(this.end)},length:function(){return _(this.squaredLength())},midpoint:function(){return new z((this.start.x+this.end.x)/2,(this.start.y+this.end.y)/2)},pointAt:function(t){var e=this.start,n=this.end;return t<=0?e.clone():1<=t?n.clone():e.lerp(n,t)},pointAtLength:function(t){var e=this.start,n=this.end,i=!0;t<0&&(i=!1,t=-t);var r=this.length();return r<=t?i?n.clone():e.clone():this.pointAt((i?t:r-t)/r)},pointOffset:function(t){t=new z(t);var e=this.start,n=this.end;return((n.x-e.x)*(t.y-e.y)-(n.y-e.y)*(t.x-e.x))/this.length()},rotate:function(t,e){return this.start.rotate(t,e),this.end.rotate(t,e),this},round:function(t){var e=T(10,t||0);return this.start.x=a(this.start.x*e)/e,this.start.y=a(this.start.y*e)/e,this.end.x=a(this.end.x*e)/e,this.end.y=a(this.end.y*e)/e,this},scale:function(t,e,n){return this.start.scale(t,e,n),this.end.scale(t,e,n),this},setLength:function(t){var e=this.length();if(!e)return this;var n=t/e;return this.scale(n,n,this.start)},squaredLength:function(){var t=this.start.x,e=this.start.y;return(t-=this.end.x)*t+(e-=this.end.y)*e},tangentAt:function(t){if(!this.isDifferentiable())return null;var e=this.start,n=this.end,i=this.pointAt(t),r=new O(e,n);return r.translate(i.x-e.x,i.y-e.y),r},tangentAtLength:function(t){if(!this.isDifferentiable())return null;var e=this.start,n=this.end,i=this.pointAtLength(t),r=new O(e,n);return r.translate(i.x-e.x,i.y-e.y),r},toString:function(){return this.start.toString()+" "+this.end.toString()},translate:function(t,e){return this.start.translate(t,e),this.end.translate(t,e),this},vector:function(){return new z(this.end.x-this.start.x,this.end.y-this.start.y)}},O.prototype.intersection=O.prototype.intersect;var D=function(t){if(!(this instanceof D))return new D(t);if("string"==typeof t)return new D.parse(t);var e,n;if(this.segments=[],t)if(Array.isArray(t)&&0!==t.length)if(n=(t=t.reduce(function(t,e){return t.concat(e)},[])).length,t[0].isSegment)for(e=0;e<n;e++){var i=t[e];this.appendSegment(i)}else{var r=null;for(e=0;e<n;e++){var o=t[e];if(!(o instanceof O||o instanceof g))throw new Error("Cannot construct a path segment from the provided object.");0===e&&this.appendSegment(D.createSegment("M",o.start)),r&&!r.end.equals(o.start)&&this.appendSegment(D.createSegment("M",o.start)),o instanceof O?this.appendSegment(D.createSegment("L",o.end)):o instanceof g&&this.appendSegment(D.createSegment("C",o.controlPoint1,o.controlPoint2,o.end)),r=o}}else if(t.isSegment)this.appendSegment(t);else if(t instanceof O)this.appendSegment(D.createSegment("M",t.start)),this.appendSegment(D.createSegment("L",t.end));else if(t instanceof g)this.appendSegment(D.createSegment("M",t.start)),this.appendSegment(D.createSegment("C",t.controlPoint1,t.controlPoint2,t.end));else{if(!(t instanceof L))throw new Error("Cannot construct a path from the provided object.");if(!t.points||0===t.points.length)return;for(n=t.points.length,e=0;e<n;e++){var s=t.points[e];0===e?this.appendSegment(D.createSegment("M",s)):this.appendSegment(D.createSegment("L",s))}}else;};D.parse=function(t){if(!t)return new D;for(var e=new D,n=t.match(/(?:[a-zA-Z] *)(?:(?:-?\d+(?:\.\d+)?(?:e[-+]?\d+)? *,? *)|(?:-?\.\d+ *,? *))+|(?:[a-zA-Z] *)(?! |\d|-|\.)/g),i=n.length,r=0;r<i;r++){var o=n[r].match(/(?:[a-zA-Z])|(?:(?:-?\d+(?:\.\d+)?(?:e[-+]?\d+)?))|(?:(?:-?\.\d+))/g),s=D.createSegment.apply(this,o);e.appendSegment(s)}return e},D.createSegment=function(t){var e=arguments;if(!t)throw new Error("Type must be provided.");var n=D.segmentTypes[t];if(!n)throw new Error(t+" is not a recognized path segment type.");for(var i=[],r=arguments.length,o=1;o<r;o++)i.push(e[o]);return E(n,i)},D.prototype={appendSegment:function(t){var e,n=this.segments,i=n.length,r=0!==i?n[i-1]:null;if(Array.isArray(t)){if(!(t=t.reduce(function(t,e){return t.concat(e)},[]))[0].isSegment)throw new Error("Segments required.");for(var o=t.length,s=0;s<o;s++){var a=t[s];e=this.prepareSegment(a,r,null),n.push(e),r=e}}else{if(!t||!t.isSegment)throw new Error("Segment required.");e=this.prepareSegment(t,r,null),n.push(e)}},bbox:function(){var t,e=this.segments,n=e.length;if(0===n)return null;for(var i=0;i<n;i++){var r=e[i];if(r.isVisible){var o=r.bbox();t=t?t.union(o):o}}if(t)return t;var s=e[n-1];return new X(s.end.x,s.end.y,0,0)},clone:function(){for(var t=this.segments,e=t.length,n=new D,i=0;i<e;i++){var r=t[i].clone();n.appendSegment(r)}return n},closestPoint:function(t,e){var n=this.closestPointT(t,e);return n?this.pointAtT(n):null},closestPointLength:function(t,e){var n=void 0===(e=e||{}).precision?this.PRECISION:e.precision,i={precision:n,segmentSubdivisions:void 0===e.segmentSubdivisions?this.getSegmentSubdivisions({precision:n}):e.segmentSubdivisions},r=this.closestPointT(t,i);return r?this.lengthAtT(r,i):0},closestPointNormalizedLength:function(t,e){var n=void 0===(e=e||{}).precision?this.PRECISION:e.precision,i={precision:n,segmentSubdivisions:void 0===e.segmentSubdivisions?this.getSegmentSubdivisions({precision:n}):e.segmentSubdivisions},r=this.closestPointLength(t,i);if(0===r)return 0;var o=this.length(i);return 0===o?0:r/o},closestPointT:function(t,e){var n=this.segments,i=n.length;if(0===i)return null;for(var r,o=void 0===(e=e||{}).precision?this.PRECISION:e.precision,s=void 0===e.segmentSubdivisions?this.getSegmentSubdivisions({precision:o}):e.segmentSubdivisions,a=1/0,h=0;h<i;h++){var l=n[h],u=s[h];if(l.isVisible){var c=l.closestPointT(t,{precision:o,subdivisions:u}),d=l.pointAtT(c),f=new O(d,t).squaredLength();f<a&&(r={segmentIndex:h,value:c},a=f)}}return r||{segmentIndex:i-1,value:1}},closestPointTangent:function(t,e){var n=this.segments,i=n.length;if(0===i)return null;for(var r,o=void 0===(e=e||{}).precision?this.PRECISION:e.precision,s=void 0===e.segmentSubdivisions?this.getSegmentSubdivisions({precision:o}):e.segmentSubdivisions,a=1/0,h=0;h<i;h++){var l=n[h],u=s[h];if(l.isDifferentiable()){var c=l.closestPointT(t,{precision:o,subdivisions:u}),d=l.pointAtT(c),f=new O(d,t).squaredLength();f<a&&(r=l.tangentAtT(c),a=f)}}return r||null},containsPoint:function(t,e){var n=this.toPolylines(e);if(!n)return!1;for(var i=n.length,r=0,o=0;o<i;o++){n[o].containsPoint(t)&&r++}return r%2==1},divideAt:function(t,e){if(0===this.segments.length)return null;t<0&&(t=0),1<t&&(t=1);var n=void 0===(e=e||{}).precision?this.PRECISION:e.precision,i={precision:n,segmentSubdivisions:void 0===e.segmentSubdivisions?this.getSegmentSubdivisions({precision:n}):e.segmentSubdivisions},r=this.length(i)*t;return this.divideAtLength(r,i)},divideAtLength:function(t,e){var n=this.segments.length;if(0===n)return null;var i=!0;t<0&&(i=!1,t=-t);var r,o,s,a,h,l,u,c=void 0===(e=e||{}).precision?this.PRECISION:e.precision,d=void 0===e.segmentSubdivisions?this.getSegmentSubdivisions({precision:c}):e.segmentSubdivisions,f=0;for(r=0;r<n;r++){var p=i?r:n-1-r;o=this.getSegment(p);var g=d[p],v=o.length({precision:c,subdivisions:g});if(o.isDifferentiable()&&(h=o,l=p,t<=f+v)){a=p,s=o.divideAtLength((i?1:-1)*(t-f),{precision:c,subdivisions:g});break}f+=v}if(!h)return null;s||(a=l,u=i?1:0,s=h.divideAtT(u));var m=this.clone();m.replaceSegment(a,s);var y=a,w=a+1,b=a+2;s[0].isDifferentiable()||(m.removeSegment(y),w-=1,b-=1);var x=m.getSegment(w).start;m.insertSegment(w,D.createSegment("M",x)),b+=1,s[1].isDifferentiable()||(m.removeSegment(b-1),b-=1);var A=b-y-1;for(r=b;r<m.segments.length;r++){var P=this.getSegment(r-A);if("Z"===(o=m.getSegment(r)).type&&!P.subpathStartSegment.end.equals(o.subpathStartSegment.end)){var S=D.createSegment("L",P.end);m.replaceSegment(r,S)}}return[new D(m.segments.slice(0,w)),new D(m.segments.slice(w))]},equals:function(t){if(!t)return!1;var e=this.segments,n=t.segments,i=e.length;if(n.length!==i)return!1;for(var r=0;r<i;r++){var o=e[r],s=n[r];if(o.type!==s.type||!o.equals(s))return!1}return!0},getSegment:function(t){var e=this.segments,n=e.length;if(0===n)throw new Error("Path has no segments.");if(t<0&&(t=n+t),n<=t||t<0)throw new Error("Index out of range.");return e[t]},getSegmentSubdivisions:function(t){for(var e=this.segments,n=e.length,i=void 0===(t=t||{}).precision?this.PRECISION:t.precision,r=[],o=0;o<n;o++){var s=e[o].getSubdivisions({precision:i});r.push(s)}return r},insertSegment:function(t,e){var n,i=this.segments,r=i.length;if(t<0&&(t=r+t+1),r<t||t<0)throw new Error("Index out of range.");var o=null,s=null;if(0!==r&&(s=1<=t?(o=i[t-1]).nextSegment:i[0]),Array.isArray(e)){if(!(e=e.reduce(function(t,e){return t.concat(e)},[]))[0].isSegment)throw new Error("Segments required.");for(var a=e.length,h=0;h<a;h++){var l=e[h];n=this.prepareSegment(l,o,s),i.splice(t+h,0,n),o=n}}else{if(!e||!e.isSegment)throw new Error("Segment required.");n=this.prepareSegment(e,o,s),i.splice(t,0,n)}},intersectionWithLine:function(t,e){var n=null,i=this.toPolylines(e);if(!i)return null;for(var r=0,o=i.length;r<o;r++){var s=i[r],a=t.intersect(s);a&&(n||(n=[]),Array.isArray(a)?Array.prototype.push.apply(n,a):n.push(a))}return n},isDifferentiable:function(){for(var t=this.segments,e=t.length,n=0;n<e;n++){if(t[n].isDifferentiable())return!0}return!1},isValid:function(){var t=this.segments;return 0===t.length||"M"===t[0].type},length:function(t){var e=this.segments,n=e.length;if(0===n)return 0;for(var i=void 0===(t=t||{}).precision?this.PRECISION:t.precision,r=void 0===t.segmentSubdivisions?this.getSegmentSubdivisions({precision:i}):t.segmentSubdivisions,o=0,s=0;s<n;s++){var a=e[s],h=r[s];o+=a.length({subdivisions:h})}return o},lengthAtT:function(t,e){var n=this.segments,i=n.length;if(0===i)return 0;var r=t.segmentIndex;if(r<0)return 0;var o=t.value;i<=r?(r=i-1,o=1):o<0?o=0:1<o&&(o=1);for(var s,a=void 0===(e=e||{}).precision?this.PRECISION:e.precision,h=void 0===e.segmentSubdivisions?this.getSegmentSubdivisions({precision:a}):e.segmentSubdivisions,l=0,u=0;u<r;u++){var c=n[u];s=h[u],l+=c.length({precisison:a,subdivisions:s})}return c=n[r],s=h[r],l+=c.lengthAtT(o,{precisison:a,subdivisions:s})},pointAt:function(t,e){if(0===this.segments.length)return null;if(t<=0)return this.start.clone();if(1<=t)return this.end.clone();var n=void 0===(e=e||{}).precision?this.PRECISION:e.precision,i={precision:n,segmentSubdivisions:void 0===e.segmentSubdivisions?this.getSegmentSubdivisions({precision:n}):e.segmentSubdivisions},r=this.length(i)*t;return this.pointAtLength(r,i)},pointAtLength:function(t,e){var n=this.segments,i=n.length;if(0===i)return null;if(0===t)return this.start.clone();var r=!0;t<0&&(r=!1,t=-t);for(var o,s=void 0===(e=e||{}).precision?this.PRECISION:e.precision,a=void 0===e.segmentSubdivisions?this.getSegmentSubdivisions({precision:s}):e.segmentSubdivisions,h=0,l=0;l<i;l++){var u=r?l:i-1-l,c=n[u],d=a[u],f=c.length({precision:s,subdivisions:d});if(c.isVisible){if(t<=h+f)return c.pointAtLength((r?1:-1)*(t-h),{precision:s,subdivisions:d});o=c}h+=f}return o?r?o.end:o.start:n[i-1].end.clone()},pointAtT:function(t){var e=this.segments,n=e.length;if(0===n)return null;var i=t.segmentIndex;if(i<0)return e[0].pointAtT(0);if(n<=i)return 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Ie(t.difference(e.center()),!0,n)}},Ge=function(t){var e=Dt(t)||{};this.ports=[],this.groups={},this.portLayoutNamespace=Be,this.portLabelLayoutNamespace=je,this._init(e)};Ge.prototype={getPorts:function(){return this.ports},getGroup:function(t){return this.groups[t]||{}},getPortsByGroup:function(e){return this.ports.filter(function(t){return t.group===e})},getGroupPortsMetrics:function(t,r){var e=this.getGroup(t),n=this.getPortsByGroup(t),i=e.position||{},o=i.name,s=this.portLayoutNamespace;s[o]||(o="left");var a=i.args||{},h=n.map(function(t){return t&&t.position&&t.position.args}),l=s[o](h,r,a),u={ports:n,result:[]};return Ut(l).reduce(function(t,e,n){var i=t.ports[n];return t.result.push({portId:i.id,portTransformation:e,labelTransformation:this._getPortLabelLayout(i,z(e),r),portAttrs:i.attrs,portSize:i.size,labelSize:i.label.size}),t}.bind(this),u),u.result},_getPortLabelLayout:function(t,e,n){var i=this.portLabelLayoutNamespace,r=t.label.position.name||"left";return i[r]?i[r](e,n,t.label.position.args):null},_init:function(t){if(he(t.groups))for(var e=Object.keys(t.groups),n=0,i=e.length;n<i;n++){var r=e[n];this.groups[r]=this._evaluateGroup(t.groups[r])}for(var o=Ut(t.items),s=0,a=o.length;s<a;s++)this.ports.push(this._evaluatePort(o[s]))},_evaluateGroup:function(t){return se(t,{position:this._getPosition(t.position,!0),label:this._getLabel(t,!0)})},_evaluatePort:function(t){var e=Nt({},t),n=this.getGroup(t.group);return e.markup=e.markup||n.markup,e.attrs=se({},n.attrs,e.attrs),e.position=this._createPositionNode(n,e),e.label=se({},n.label,this._getLabel(e)),e.z=this._getZIndex(n,e),e.size=Nt({},n.size,e.size),e},_getZIndex:function(t,e){return le(e.z)?e.z:le(t.z)||"auto"===t.z?t.z:"auto"},_createPositionNode:function(t,e){return se({name:"left",args:{}},t.position,{args:e.args})},_getPosition:function(t,e){var n,i={};jt(t)?(n="fn",i.fn=t):ue(t)?n=t:void 0===t?n=e?"left":null:Array.isArray(t)?(n="absolute",i.x=t[0],i.y=t[1]):he(t)&&(n=t.name,Nt(i,t.args));var r={args:i};return n&&(r.name=n),r},_getLabel:function(t,e){var n=t.label||{},i=n;return i.position=this._getPosition(n.position,e),i}};var Ue={_initializePorts:function(){this._createPortData(),this.on("change:ports",function(){this._processRemovedPort(),this._createPortData()},this)},_processRemovedPort:function(){var t=this.get("ports")||{},e={};Ut(t.items).forEach(function(t){e[t.id]=!0});var n=this.previous("ports")||{},i={};Ut(n.items).forEach(function(t){e[t.id]||(i[t.id]=!0)});var r=this.graph;r&&!zt(i)&&(r.getConnectedLinks(this,{inbound:!0}).forEach(function(t){i[t.get("target").port]&&t.remove()}),r.getConnectedLinks(this,{outbound:!0}).forEach(function(t){i[t.get("source").port]&&t.remove()}))},hasPorts:function(){var t=this.prop("ports/items");return Array.isArray(t)&&0<t.length},hasPort:function(t){return-1!==this.getPortIndex(t)},getPorts:function(){return Dt(this.prop("ports/items"))||[]},getPort:function(e){return Dt(Ut(this.prop("ports/items")).find(function(t){return t.id&&t.id===e}))},getPortsPositions:function(t){return this._portSettingsData.getGroupPortsMetrics(t,X(this.size())).reduce(function(t,e){var n=e.portTransformation;return t[e.portId]={x:n.x,y:n.y,angle:n.angle},t},{})},getPortIndex:function(t){var e=he(t)?t.id:t;return this._isValidPortId(e)?Ut(this.prop("ports/items")).findIndex(function(t){return t.id===e}):-1},addPort:function(t,e){if(!he(t)||Array.isArray(t))throw new Error("Element: addPort requires an object.");var n=Nt([],this.prop("ports/items"));return n.push(t),this.prop("ports/items",n,e),this},portProp:function(t,e,n,i){var r=this.getPortIndex(t);if(-1===r)throw new Error("Element: unable to find port with id "+t);var o=Array.prototype.slice.call(arguments,1);return Array.isArray(e)?o[0]=["ports","items",r].concat(e):ue(e)?o[0]=["ports/items/",r,"/",e].join(""):(o=["ports/items/"+r],Gt(e)&&(o.push(e),o.push(n))),this.prop.apply(this,o)},_validatePorts:function(){var t=this.get("ports")||{},e=[],n=Ut((t=t||{}).items);return n.forEach(function(t){"object"!=typeof t&&e.push("Element: invalid port ",t),this._isValidPortId(t.id)||(t.id=this.generatePortId())},this),Rt(n,"id").length!==n.length&&e.push("Element: found id duplicities in ports."),e},generatePortId:function(){return this.generateId()},_isValidPortId:function(t){return null!=t&&!he(t)},addPorts:function(t,e){return t.length&&this.prop("ports/items",Nt([],this.prop("ports/items")).concat(t),e),this},removePort:function(t,e){var n=e||{},i=Nt([],this.prop("ports/items")),r=this.getPortIndex(t);return-1!==r&&(i.splice(r,1),n.rewrite=!0,this.prop("ports/items",i,n)),this},removePorts:function(t,e){var n;if(Array.isArray(t)){if(n=e||{},t.length){n.rewrite=!0;var i=Nt([],this.prop("ports/items")).filter(function(n){return!t.some(function(t){var e=he(t)?t.id:t;return n.id===e})});this.prop("ports/items",i,n)}}else(n=t||{}).rewrite=!0,this.prop("ports/items",[],n);return this},_createPortData:function(){var t,e=this._validatePorts();if(0<e.length)throw this.set("ports",this.previous("ports")),new Error(e.join(" "));this._portSettingsData&&(t=this._portSettingsData.getPorts()),this._portSettingsData=new Ge(this.get("ports"));var n=this._portSettingsData.getPorts();if(t){var i=n.filter(function(e){if(!t.find(function(t){return t.id===e.id}))return e}),r=t.filter(function(e){if(!n.find(function(t){return t.id===e.id}))return e});0<r.length&&this.trigger("ports:remove",this,r),0<i.length&&this.trigger("ports:add",this,i)}}},qe={portContainerMarkup:"g",portMarkup:[{tagName:"circle",selector:"circle",attributes:{r:10,fill:"#FFFFFF",stroke:"#000000"}}],portLabelMarkup:[{tagName:"text",selector:"text",attributes:{fill:"#000000"}}],_portElementsCache:null,_initializePorts:function(){this._cleanPortsCache()},_refreshPorts:function(){this._removePorts(),this._cleanPortsCache(),this._renderPorts()},_cleanPortsCache:function(){this._portElementsCache={}},_renderPorts:function(){for(var n=[],i=this._getContainerElement(),t=0,e=i.node.childNodes.length;t<e;t++)n.push(i.node.childNodes[t]);var r=Ht(this.model._portSettingsData.getPorts(),"z");Ut(r.auto).forEach(function(t){var e=this._getPortElement(t);i.append(e),n.push(e)},this);for(var o=Object.keys(r),s=0;s<o.length;s++){var a=o[s];if("auto"!==a){var h=parseInt(a,10);this._appendPorts(r[a],h,n)}}this._updatePorts()},_getContainerElement:function(){return this.rotatableNode||this.vel},_appendPorts:function(t,e,n){var i=this._getContainerElement(),r=Ut(t).map(this._getPortElement,this);n[e]||e<0?K(n[Math.max(e,0)]).before(r):i.append(r)},_getPortElement:function(t){return this._portElementsCache[t.id]?this._portElementsCache[t.id].portElement:this._createPortElement(t)},findPortNode:function(t,e){var n=this._portElementsCache[t];if(!n)return null;var i=n.portContentElement.node,r=n.portContentSelectors;return this.findBySelector(e,i,r)[0]},_updatePorts:function(){this._updatePortGroup(void 0),Object.keys(this.model._portSettingsData.groups).forEach(this._updatePortGroup,this)},_removePorts:function(){_t(this._portElementsCache,"portElement.remove")},_createPortElement:function(t){var e,n,i,r=K(this.portContainerMarkup).addClass("joint-port"),o=this._getPortMarkup(t);if(Array.isArray(o)){var s=this.parseDOMJSON(o,r.node),a=s.fragment;e=1<a.childNodes.length?K("g").append(a):K(a.firstChild),i=s.selectors}else e=K(o),Array.isArray(e)&&(e=K("g").append(e));if(!e)throw new Error("ElementView: Invalid port markup.");e.attr({port:t.id,"port-group":t.group});var h,l,u=this._getPortLabelMarkup(t.label);if(Array.isArray(u)){var c=this.parseDOMJSON(u,r.node),d=c.fragment;n=1<d.childNodes.length?K("g").append(d):K(d.firstChild),h=c.selectors}else n=K(u),Array.isArray(n)&&(n=K("g").append(n));if(!n)throw new Error("ElementView: Invalid port label markup.");if(i&&h){for(var f in h)if(i[f]&&f!==this.selector)throw new Error("ElementView: selectors within port must be unique.");l=Nt({},i,h)}else l=i||h;return r.append([e.addClass("joint-port-body"),n.addClass("joint-port-label")]),this._portElementsCache[t.id]={portElement:r,portLabelElement:n,portSelectors:l,portLabelSelectors:h,portContentElement:e,portContentSelectors:i},r},_updatePortGroup:function(t){for(var e=X(this.model.size()),n=this.model._portSettingsData.getGroupPortsMetrics(t,e),i=0,r=n.length;i<r;i++){var o=n[i],s=o.portId,a=this._portElementsCache[s]||{},h=o.portTransformation;this.applyPortTransform(a.portElement,h),this.updateDOMSubtreeAttributes(a.portElement.node,o.portAttrs,{rootBBox:new X(o.portSize),selectors:a.portSelectors});var l=o.labelTransformation;l&&(this.applyPortTransform(a.portLabelElement,l,-h.angle||0),this.updateDOMSubtreeAttributes(a.portLabelElement.node,l.attrs,{rootBBox:new X(o.labelSize),selectors:a.portLabelSelectors}))}},applyPortTransform:function(t,e,n){var i=K.createSVGMatrix().rotate(n||0).translate(e.x||0,e.y||0).rotate(e.angle||0);t.transform(i,{absolute:!0})},_getPortMarkup:function(t){return t.markup||this.model.get("portMarkup")||this.model.portMarkup||this.portMarkup},_getPortLabelMarkup:function(t){return t.markup||this.model.get("portLabelMarkup")||this.model.portLabelMarkup||this.portLabelMarkup}},He=Ce.extend({defaults:{position:{x:0,y:0},size:{width:1,height:1},angle:0},initialize:function(){this._initializePorts(),Ce.prototype.initialize.apply(this,arguments)},_initializePorts:function(){},_refreshPorts:function(){},isElement:function(){return!0},position:function(t,e,n){var i=le(e);if((n=(i?n:t)||{}).parentRelative){if(!this.graph)throw new Error("Element must be part of a graph.");var r=this.getParentCell(),o=r&&!r.isLink()?r.get("position"):{x:0,y:0}}if(i){if(n.parentRelative&&(t+=o.x,e+=o.y),n.deep){var s=this.get("position");this.translate(t-s.x,e-s.y,n)}else this.set("position",{x:t,y:e},n);return this}var a=z(this.get("position"));return n.parentRelative?a.difference(o):a},translate:function(t,e,n){if(e=e||0,0===(t=t||0)&&0===e)return this;(n=n||{}).translateBy=n.translateBy||this.id;var i=this.get("position")||{x:0,y:0};if(n.restrictedArea&&n.translateBy===this.id){var r=this.getBBox({deep:!0}),o=n.restrictedArea,s=i.x-r.x,a=i.y-r.y,h=Math.max(o.x+s,Math.min(o.x+o.width+s-r.width,i.x+t)),l=Math.max(o.y+a,Math.min(o.y+o.height+a-r.height,i.y+e));t=h-i.x,e=l-i.y}var u={x:i.x+t,y:i.y+e};return n.tx=t,n.ty=e,n.transition?(he(n.transition)||(n.transition={}),this.transition("position",u,Nt({},n.transition,{valueFunction:Pt.object})),_t(this.getEmbeddedCells(),"translate",t,e,n)):(this.startBatch("translate",n),this.set("position",u,n),_t(this.getEmbeddedCells(),"translate",t,e,n),this.stopBatch("translate",n)),this},size:function(t,e,n){var i=this.get("size");return void 0===t?{width:i.width,height:i.height}:(he(t)&&(n=e,e=le(t.height)?t.height:i.height,t=le(t.width)?t.width:i.width),this.resize(t,e,n))},resize:function(t,e,n){if(n=n||{},this.startBatch("resize",n),n.direction){var i=this.get("size");switch(n.direction){case"left":case"right":e=i.height;break;case"top":case"bottom":t=i.width}var r=b(this.get("angle")||0),o={"top-right":0,right:0,"top-left":1,top:1,"bottom-left":2,left:2,"bottom-right":3,bottom:3}[n.direction];n.absolute&&(o+=Math.floor((r+45)/90),o%=4);var s=this.getBBox(),a=s[["bottomLeft","corner","topRight","origin"][o]](),h=z(a).rotate(s.center(),-r),l=Math.sqrt(t*t+e*e)/2,u=o*Math.PI/2;u+=Math.atan(o%2==0?e/t:t/e),u-=A(r);var c=z.fromPolar(l,u,h),d=z(c).offset(t/-2,e/-2);this.set("size",{width:t,height:e},n),this.position(d.x,d.y,n)}else this.set("size",{width:t,height:e},n);return this.stopBatch("resize",n),this},scale:function(t,e,n,i){var r=this.getBBox().scale(t,e,n);return this.startBatch("scale",i),this.position(r.x,r.y,i),this.resize(r.width,r.height,i),this.stopBatch("scale"),this},fitEmbeds:function(t){void 0===t&&(t={});var e=this.graph;if(!e)throw new Error("Element must be part of a graph.");var n=this.getEmbeddedCells().filter(function(t){return t.isElement()});if(0===n.length)return this;this.startBatch("fit-embeds",t),t.deep&&_t(n,"fitEmbeds",t);var i=xt(t.padding),r=i.left,o=i.right,s=i.top,a=i.bottom,h=e.getCellsBBox(n),l=h.x,u=h.y,c=h.width,d=h.height;return l-=r,u-=s,c+=r+o,d+=a+s,this.set({position:{x:l,y:u},size:{width:c,height:d}},t),this.stopBatch("fit-embeds"),this},rotate:function(t,e,n,i){if(n){var r=this.getBBox().center(),o=this.get("size"),s=this.get("position");r.rotate(n,this.get("angle")-t);var a=r.x-o.width/2-s.x,h=r.y-o.height/2-s.y;this.startBatch("rotate",{angle:t,absolute:e,origin:n}),this.position(s.x+a,s.y+h,i),this.rotate(t,e,null,i),this.stopBatch("rotate")}else this.set("angle",e?t:(this.get("angle")+t)%360,i);return this},angle:function(){return b(this.get("angle")||0)},getBBox:function(t){if((t=t||{}).deep&&this.graph){var e=this.getEmbeddedCells({deep:!0,breadthFirst:!0});return e.push(this),this.graph.getCellsBBox(e)}var n=this.get("position"),i=this.get("size");return new X(n.x,n.y,i.width,i.height)},getPointFromConnectedLink:function(t,e){var n=this.getBBox(),i=n.center(),r=t.get(e);if(!r)return i;var o=r.port;if(!o)return i;var s=this.portProp(o,["group"]),a=this.getPortsPositions(s),h=new z(a[o]).offset(n.origin()),l=this.angle();return l&&h.rotate(i,-l),h}});Nt(He.prototype,Ue);var $e={},Ye=s.View.extend({options:{},theme:null,themeClassNamePrefix:tt("theme-"),requireSetThemeOverride:!1,defaultTheme:Q.defaultTheme,children:null,childNodes:null,UPDATE_PRIORITY:2,constructor:function(t){this.requireSetThemeOverride=t&&!!t.theme,this.options=Nt({},this.options,t),s.View.call(this,t)},initialize:function(){($e[this.cid]=this).setTheme(this.options.theme||this.defaultTheme),this.init()},unmount:function(){this.svgElement?this.vel.remove():this.$el.remove()},renderChildren:function(t){if(t||(t=Qt(this,"children")),t){var e=this.svgElement,n=K.namespace[e?"svg":"xhtml"],i=nt(t,n);(e?this.vel:this.$el).empty().append(i.fragment),this.childNodes=i.selectors}return this},findAttribute:function(t,e){for(var n=e;n&&1===n.nodeType;){var i=n.getAttribute(t);if(i)return i;if(n===this.el)return null;n=n.parentNode}return null},_ensureElement:function(){if(this.el)this.setElement(Qt(this,"el"));else{var t=Qt(this,"tagName"),e=Nt({},Qt(this,"attributes")),n=Nt({},Qt(this,"style"));this.id&&(e.id=Qt(this,"id")),this.setElement(this._createElement(t)),this._setAttributes(e),this._setStyle(n)}this._ensureElClassName()},_setAttributes:function(t){this.svgElement?this.vel.attr(t):this.$el.attr(t)},_setStyle:function(t){this.$el.css(t)},_createElement:function(t){return this.svgElement?document.createElementNS(K.namespace.svg,t):document.createElement(t)},_setElement:function(t){this.$el=t instanceof s.$?t:s.$(t),this.el=this.$el[0],this.svgElement&&(this.vel=K(this.el))},_ensureElClassName:function(){var t=Qt(this,"className");if(t){var e=tt(t);this.svgElement?this.vel.removeClass(t).addClass(e):this.$el.removeClass(t).addClass(e)}},init:function(){},onRender:function(){},confirmUpdate:function(){return 0},setTheme:function(t,e){return e=e||{},this.theme&&this.requireSetThemeOverride&&!e.override||(this.removeThemeClassName(),this.addThemeClassName(t),this.onSetTheme(this.theme,t),this.theme=t),this},addThemeClassName:function(t){t=t||this.theme;var e=this.themeClassNamePrefix+t;return this.svgElement?this.vel.addClass(e):this.$el.addClass(e),this},removeThemeClassName:function(t){t=t||this.theme;var e=this.themeClassNamePrefix+t;return this.svgElement?this.vel.removeClass(e):this.$el.removeClass(e),this},onSetTheme:function(t,e){},remove:function(){return this.onRemove(),this.undelegateDocumentEvents(),$e[this.cid]=null,s.View.prototype.remove.apply(this,arguments),this},onRemove:function(){},getEventNamespace:function(){return".joint-event-ns-"+this.cid},delegateElementEvents:function(t,e,n){if(!e)return this;n||(n={});var i=this.getEventNamespace();for(var r in e){var o=e[r];"function"!=typeof o&&(o=this[o]),o&&C(t).on(r+i,n,o.bind(this))}return this},undelegateElementEvents:function(t){return C(t).off(this.getEventNamespace()),this},delegateDocumentEvents:function(t,e){return t||(t=Qt(this,"documentEvents")),this.delegateElementEvents(document,t,e)},undelegateDocumentEvents:function(){return this.undelegateElementEvents(document)},eventData:function(t,e){if(!t)throw new Error("eventData(): event object required.");var n=t.data,i="__"+this.cid+"__";return void 0===e?n&&n[i]||{}:(n||(n=t.data={}),n[i]||(n[i]={}),Nt(n[i],e),this)},stopPropagation:function(t){return this.eventData(t,{propagationStopped:!0}),this},isPropagationStopped:function(t){return!!this.eventData(t).propagationStopped}},{extend:function(){var t=Array.from(arguments),e=t[0]&&Nt({},t[0])||{},n=t[1]&&Nt({},t[1])||{},i=e.render||this.prototype&&this.prototype.render||null;return e.render=function(){return"function"==typeof i&&i.apply(this,arguments),this.render.__render__===i&&this.onRender(),this},e.render.__render__=i,s.View.extend.call(this,e,n)}}),Xe={views:$e,View:Ye},We=Ye.extend({tagName:"g",svgElement:!0,selector:"root",metrics:null,className:function(){var i=["cell"],t=this.model.get("type");return t&&t.toLowerCase().split(".").forEach(function(t,e,n){i.push("type-"+n.slice(0,e+1).join("-"))}),i.join(" ")},_presentationAttributes:null,_flags:null,setFlags:function(){var t,e,n,i={},r={},o=0,s=this.presentationAttributes;for(var a in s)if(s.hasOwnProperty(a)){var h=s[a];for(Array.isArray(h)||(h=[h]),t=0,e=h.length;t<e;t++){var l=i[n=h[t]];l||(l=i[n]=1<<o++),r[a]|=l}}var u=this.initFlag;for(Array.isArray(u)||(u=[u]),t=0,e=u.length;t<e;t++)i[n=u[t]]||(i[n]=1<<o++);if(25<o)throw new Error("dia.CellView: Maximum number of flags exceeded.");this._flags=i,this._presentationAttributes=r},hasFlag:function(t,e){return t&this.getFlag(e)},removeFlag:function(t,e){return t^t&this.getFlag(e)},getFlag:function(t){var e=this._flags;if(!e)return 0;var n=0;if(Array.isArray(t))for(var i=0,r=t.length;i<r;i++)n|=e[t[i]];else n|=e[t];return n},attributes:function(){var t=this.model;return{"model-id":t.id,"data-type":t.attributes.type}},constructor:function(t){t.id=t.id||lt(this),Ye.call(this,t)},initialize:function(){this.setFlags(),Ye.prototype.initialize.apply(this,arguments),this.cleanNodesCache(),this.$el.data("view",this),this.startListening()},startListening:function(){this.listenTo(this.model,"change",this.onAttributesChange)},onAttributesChange:function(t,e){var n=t.getChangeFlag(this._presentationAttributes);if(!e.updateHandled&&n){e.dirty&&this.hasFlag(n,"UPDATE")&&(n|=this.getFlag("RENDER")),e.tool&&(e.async=!1);var i=this.paper;i&&i.requestViewUpdate(this,n,this.UPDATE_PRIORITY,e)}},parseDOMJSON:function(t,e){var n=nt(t),i=n.selectors,r=n.groupSelectors;for(var o in r){if(i[o])throw new Error("dia.CellView: ambiguous group selector");i[o]=r[o]}if(e){var s=this.selector;if(i[s])throw new Error("dia.CellView: ambiguous root selector.");i[s]=e}return{fragment:n.fragment,selectors:i}},can:function(t){var e=jt(this.options.interactive)?this.options.interactive(this):this.options.interactive;return he(e)&&!1!==e[t]||ae(e)&&!1!==e},findBySelector:function(t,e,n){if(e||(e=this.el),n||(n=this.selectors),!t||"."===t)return[e];if(n){var i=n[t];if(i)return Array.isArray(i)?i:[i]}return Q.useCSSSelectors?C(e).find(t).toArray():[]},notify:function(t){if(this.paper){var e=Array.prototype.slice.call(arguments,1);this.trigger.apply(this,[t].concat(e)),this.paper.trigger.apply(this.paper,[t,this].concat(e))}},getBBox:function(t){var e;if(t&&t.useModelGeometry){var n=this.model;e=n.getBBox().bbox(n.angle())}else e=this.getNodeBBox(this.el);return this.paper.localToPaperRect(e)},getNodeBBox:function(t){var e=this.getNodeBoundingRect(t),n=this.getNodeMatrix(t),i=this.getRootTranslateMatrix(),r=this.getRootRotateMatrix();return K.transformRect(e,i.multiply(r).multiply(n))},getNodeUnrotatedBBox:function(t){var e=this.getNodeBoundingRect(t),n=this.getNodeMatrix(t),i=this.getRootTranslateMatrix();return K.transformRect(e,i.multiply(n))},getRootTranslateMatrix:function(){var t=this.model.position();return K.createSVGMatrix().translate(t.x,t.y)},getRootRotateMatrix:function(){var t=K.createSVGMatrix(),e=this.model,n=e.angle();if(n){var i=e.getBBox(),r=i.width/2,o=i.height/2;t=t.translate(r,o).rotate(n).translate(-r,-o)}return t},highlight:function(t,e){return t=t&&this.$(t)[0]||this.el,(e=e||{}).partial=t!==this.el,this.notify("cell:highlight",t,e),this},unhighlight:function(t,e){return t=t&&this.$(t)[0]||this.el,(e=e||{}).partial=t!=this.el,this.notify("cell:unhighlight",t,e),this},findMagnet:function(t){var e=this.$(t),n=this.$el;0===e.length&&(e=n);do{var i=e.attr("magnet");if((i||e.is(n))&&"false"!==i)return e[0];e=e.parent()}while(0<e.length)},getSelector:function(t,e){var n;if(t===this.el)return"string"==typeof e&&(n="> "+e),n;if(t){var i=K(t).index()+1;n=t.tagName+":nth-child("+i+")",e&&(n+=" > "+e),n=this.getSelector(t.parentNode,n)}return n},getLinkEnd:function(t,e,n,i,r){var o=this.model,s=o.id,a=this.findAttribute("port",t),h=t.getAttribute("joint-selector"),l={id:s};null!=h&&(l.magnet=h),null!=a?(l.port=a,o.hasPort(a)||h||(l.selector=this.getSelector(t))):null==h&&this.el!==t&&(l.selector=this.getSelector(t));var u=this.paper,c=u.options.connectionStrategy;if("function"==typeof c){var d=c.call(u,l,this,t,new z(e,n),i,r,u);d&&(l=d)}return l},getMagnetFromLinkEnd:function(t){var e=this.el,n=t.port,i=t.magnet,r=this.model;return null!=n&&r.isElement()&&r.hasPort(n)?this.findPortNode(n,i)||e:(i||(i=t.selector),i||null==n||(i='[port="'+n+'"]'),this.findBySelector(i,e,this.selectors)[0])},getAttributeDefinition:function(t){return this.model.constructor.getAttributeDefinition(t)},setNodeAttributes:function(t,e){zt(e)||(t instanceof SVGElement?K(t).attr(e):C(t).attr(e))},processNodeAttributes:function(t,e){var n,i,r,o,s,a,h,l,u,c=[];for(n in e)e.hasOwnProperty(n)&&(i=e[n],!(r=this.getAttributeDefinition(n))||jt(r.qualify)&&!r.qualify.call(this,i,t,e)?(a||(a={}),a[ut(n)]=i):(ue(r.set)&&(a||(a={}),a[r.set]=i),null!==i&&c.push(n,r)));for(o=0,s=c.length;o<s;o+=2)n=c[o],r=c[o+1],i=e[n],jt(r.set)&&(h||(h={}),h[n]=i),jt(r.position)&&(l||(l={}),l[n]=i),jt(r.offset)&&(u||(u={}),u[n]=i);return{raw:e,normal:a,set:h,position:l,offset:u}},updateRelativeAttributes:function(t,e,n,i){var r,o;i||(i={});var s=e.raw||{},a=e.normal||{},h=e.set,l=e.position,u=e.offset;for(r in h){o=h[r];var c=this.getAttributeDefinition(r).set.call(this,o,n.clone(),t,s);he(c)?Nt(a,c):void 0!==c&&(a[r]=c)}if(t instanceof HTMLElement)this.setNodeAttributes(t,a);else{var d,f,p,g=a.transform,v=K.transformStringToMatrix(g),m=z(v.e,v.f);if(g&&(a=te(a,"transform"),v.e=v.f=0),l||u){var y=this.getNodeScale(t,i.scalableNode);d=y.sx,f=y.sy}var w=!1;for(r in l)o=l[r],(p=this.getAttributeDefinition(r).position.call(this,o,n.clone(),t,s))&&(m.offset(z(p).scale(d,f)),w||(w=!0));this.setNodeAttributes(t,a);var b=!1;if(u){var x=this.getNodeBoundingRect(t);if(0<x.width&&0<x.height){var A=K.transformRect(x,v).scale(1/d,1/f);for(r in u)o=u[r],(p=this.getAttributeDefinition(r).offset.call(this,o,A,t,s))&&(m.offset(z(p).scale(d,f)),b||(b=!0))}}(void 0!==g||w||b)&&(m.round(1),v.e=m.x,v.f=m.y,t.setAttribute("transform",K.matrixToTransformString(v)))}},getNodeScale:function(t,e){var n,i;if(e&&e.contains(t)){var r=e.scale();n=1/r.sx,i=1/r.sy}else i=n=1;return{sx:n,sy:i}},cleanNodesCache:function(){this.metrics={}},nodeCache:function(t){var e=this.metrics;if(!e)return{};var n=K.ensureId(t),i=e[n];return i||(i=e[n]={}),i},getNodeData:function(t){var e=this.nodeCache(t);return e.data||(e.data={}),e.data},getNodeBoundingRect:function(t){var e=this.nodeCache(t);return void 0===e.boundingRect&&(e.boundingRect=K(t).getBBox()),new X(e.boundingRect)},getNodeMatrix:function(t){var e=this.nodeCache(t);if(void 0===e.magnetMatrix){var n=this.rotatableNode||this.el;e.magnetMatrix=K(t).getTransformToElement(n)}return K.createSVGMatrix(e.magnetMatrix)},getNodeShape:function(t){var e=this.nodeCache(t);return void 0===e.geometryShape&&(e.geometryShape=K(t).toGeometryShape()),e.geometryShape.clone()},isNodeConnection:function(t){return this.model.isLink()&&(!t||t===this.el)},findNodesAttributes:function(t,e,n,i){var r,o,s,a,h={},l=[];for(var u in t)if(t.hasOwnProperty(u)&&(s=t[u],Gt(s))){var c=n[u]=this.findBySelector(u,e,i);for(r=0,o=c.length;r<o;r++){var d=c[r];a=K.ensureId(d);var f=i&&i[u]===d,p=h[a];if(p){p.array||(l.push(a),p.array=!0,p.attributes=[p.attributes],p.selectedLength=[p.selectedLength]);var g=p.attributes,v=p.selectedLength;if(f)g.unshift(s),v.unshift(-1);else{var m=Bt(v,o);g.splice(m,0,s),v.splice(m,0,o)}}else h[a]={attributes:s,selectedLength:f?-1:o,node:d,array:!1}}}for(r=0,o=l.length;r<o;r++)(s=h[a=l[r]]).attributes=se.apply(void 0,[{}].concat(s.attributes.reverse()));return h},getEventTarget:function(t,e){void 0===e&&(e={});var n=t.target,i=t.type,r=t.clientX;void 0===r&&(r=0);var o=t.clientY;return void 0===o&&(o=0),e.fromPoint||"touchmove"===i||"touchend"===i?document.elementFromPoint(r,o):n},updateDOMSubtreeAttributes:function(t,e,n){n||(n={}),n.rootBBox||(n.rootBBox=X()),n.selectors||(n.selectors=this.selectors);var i,r,o,s,a,h,l={},u={},c=[],d=n.roAttributes,f=this.findNodesAttributes(d||e,t,l,n.selectors),p=d?this.findNodesAttributes(e,t,l,n.selectors):f;for(var g in f)if(o=(s=f[g]).attributes,r=s.node,(a=this.processNodeAttributes(r,o)).set||a.position||a.offset){var v,m=p[g]&&p[g].attributes,y=m&&void 0===o.ref?m.ref:o.ref;if(y){if(!(v=(l[y]||this.findBySelector(y,t,n.selectors))[0]))throw new Error('dia.ElementView: "'+y+'" reference does not exist.')}else v=null;i={node:r,refNode:v,processedAttributes:a,allAttributes:m};var w=c.findIndex(function(t){return t.refNode===r});-1<w?c.splice(w,0,i):c.push(i)}else this.setNodeAttributes(r,a.normal);for(var b=0,x=c.length;b<x;b++){i=c[b],r=i.node,v=i.refNode;var A=K(n.rotatableNode),P=v?K.ensureId(v):"",S=!!A&&!!v&&A.contains(v),k=u[P];if(!k){var E=S?A:t;k=u[P]=v?K(v).getBBox({target:E}):n.rootBBox}d?(a=this.processNodeAttributes(r,i.allAttributes),this.mergeProcessedAttributes(a,i.processedAttributes)):a=i.processedAttributes;var C=k;S&&!A.contains(r)&&(h||(h=K.transformStringToMatrix(A.attr("transform"))),C=K.transformRect(k,h)),this.updateRelativeAttributes(r,a,C,n)}},mergeProcessedAttributes:function(t,e){t.set||(t.set={}),t.position||(t.position={}),t.offset||(t.offset={}),Nt(t.set,e.set),Nt(t.position,e.position),Nt(t.offset,e.offset);var n=t.normal&&t.normal.transform;void 0!==n&&e.normal&&(e.normal.transform=n),t.normal=e.normal},onRemove:function(){this.removeTools()},_toolsView:null,hasTools:function(t){var e=this._toolsView;return!!e&&(!t||e.getName()===t)},addTools:function(t){return this.removeTools(),t&&((this._toolsView=t).configure({relatedView:this}),t.listenTo(this.paper,"tools:event",this.onToolEvent.bind(this)),t.mount()),this},updateTools:function(t){var e=this._toolsView;return e&&e.update(t),this},removeTools:function(){var t=this._toolsView;return t&&(t.remove(),this._toolsView=null),this},hideTools:function(){var t=this._toolsView;return t&&t.hide(),this},showTools:function(){var t=this._toolsView;return t&&t.show(),this},onToolEvent:function(t){switch(t){case"remove":this.removeTools();break;case"hide":this.hideTools();break;case"show":this.showTools()}},pointerdblclick:function(t,e,n){this.notify("cell:pointerdblclick",t,e,n)},pointerclick:function(t,e,n){this.notify("cell:pointerclick",t,e,n)},contextmenu:function(t,e,n){this.notify("cell:contextmenu",t,e,n)},pointerdown:function(t,e,n){this.model.graph&&(this.model.startBatch("pointer"),this._graph=this.model.graph),this.notify("cell:pointerdown",t,e,n)},pointermove:function(t,e,n){this.notify("cell:pointermove",t,e,n)},pointerup:function(t,e,n){this.notify("cell:pointerup",t,e,n),this._graph&&(this._graph.stopBatch("pointer",{cell:this.model}),delete this._graph)},mouseover:function(t){this.notify("cell:mouseover",t)},mouseout:function(t){this.notify("cell:mouseout",t)},mouseenter:function(t){this.notify("cell:mouseenter",t)},mouseleave:function(t){this.notify("cell:mouseleave",t)},mousewheel:function(t,e,n,i){this.notify("cell:mousewheel",t,e,n,i)},onevent:function(t,e,n,i){this.notify(e,t,n,i)},onmagnet:function(){},magnetpointerdblclick:function(){},magnetcontextmenu:function(){},checkMouseleave:function(t){var e=this.paper;e.isAsync()&&e.dumpView(this);var n=this.getEventTarget(t,{fromPoint:!0}),i=e.findView(n);i!==this&&(this.mouseleave(t),i&&i.mouseenter(t))},setInteractivity:function(t){this.options.interactive=t}},{addPresentationAttributes:function(t){return se({},this.prototype.presentationAttributes,t,function(t,e){if(t&&e)return"string"==typeof t&&(t=[t]),"string"==typeof e&&(e=[e]),Array.isArray(t)&&Array.isArray(e)?Rt(t.concat(e)):void 0})}}),Ze=We.extend({_removePorts:function(){},_renderPorts:function(){},className:function(){var t=We.prototype.className.apply(this).split(" ");return t.push("element"),t.join(" ")},initialize:function(){We.prototype.initialize.apply(this,arguments),this._initializePorts()},presentationAttributes:{attrs:["UPDATE"],position:["TRANSLATE","TOOLS"],size:["RESIZE","PORTS","TOOLS"],angle:["ROTATE","TOOLS"],markup:["RENDER"],ports:["PORTS"]},initFlag:["RENDER"],UPDATE_PRIORITY:0,confirmUpdate:function(t,e){var n=Q.useCSSSelectors;return this.hasFlag(t,"PORTS")&&(this._removePorts(),this._cleanPortsCache()),this.hasFlag(t,"RENDER")?(this.render(),this.updateTools(e),t=this.removeFlag(t,["RENDER","UPDATE","RESIZE","TRANSLATE","ROTATE","PORTS"])):(this.hasFlag(t,"RESIZE")&&(this.resize(e),t=this.removeFlag(t,["RESIZE","UPDATE"])),this.hasFlag(t,"UPDATE")&&(this.update(this.model,null,e),t=this.removeFlag(t,"UPDATE"),n&&(t=this.removeFlag(t,"PORTS"))),this.hasFlag(t,"TRANSLATE")&&(this.translate(),t=this.removeFlag(t,"TRANSLATE")),this.hasFlag(t,"ROTATE")&&(this.rotate(),t=this.removeFlag(t,"ROTATE")),this.hasFlag(t,"PORTS")&&(this._renderPorts(),t=this.removeFlag(t,"PORTS"))),this.hasFlag(t,"TOOLS")&&(this.updateTools(e),t=this.removeFlag(t,"TOOLS")),t},_initializePorts:function(){},update:function(t,e){this.cleanNodesCache();var n=Q.useCSSSelectors;n&&this._removePorts();var i=this.model,r=i.attr();this.updateDOMSubtreeAttributes(this.el,r,{rootBBox:new X(i.size()),selectors:this.selectors,scalableNode:this.scalableNode,rotatableNode:this.rotatableNode,roAttributes:e===r?null:e}),n&&this._renderPorts()},rotatableSelector:"rotatable",scalableSelector:"scalable",scalableNode:null,rotatableNode:null,renderMarkup:function(){var t=this.model,e=t.get("markup")||t.markup;if(!e)throw new Error("dia.ElementView: markup required");if(Array.isArray(e))return this.renderJSONMarkup(e);if("string"==typeof e)return this.renderStringMarkup(e);throw new Error("dia.ElementView: invalid markup")},renderJSONMarkup:function(t){var e=this.parseDOMJSON(t,this.el),n=this.selectors=e.selectors;this.rotatableNode=K(n[this.rotatableSelector])||null,this.scalableNode=K(n[this.scalableSelector])||null,this.vel.append(e.fragment)},renderStringMarkup:function(t){var e=this.vel;e.append(K(t)),this.rotatableNode=e.findOne(".rotatable"),this.scalableNode=e.findOne(".scalable"),(this.selectors={})[this.selector]=this.el},render:function(){return this.vel.empty(),this.renderMarkup(),this.scalableNode&&this.update(),this.resize(),this.rotatableNode?(this.rotate(),this.translate()):this.updateTransformation(),Q.useCSSSelectors||this._renderPorts(),this},resize:function(t){if(this.scalableNode)return this.sgResize(t);this.model.attributes.angle&&this.rotate(),this.update()},translate:function(){if(this.rotatableNode)return this.rgTranslate();this.updateTransformation()},rotate:function(){if(this.rotatableNode)return this.rgRotate(),void this.update();this.updateTransformation()},updateTransformation:function(){var t=this.getTranslateString(),e=this.getRotateString();e&&(t+=" "+e),this.vel.attr("transform",t)},getTranslateString:function(){var t=this.model.attributes.position;return"translate("+t.x+","+t.y+")"},getRotateString:function(){var t=this.model.attributes,e=t.angle;if(!e)return null;var n=t.size;return"rotate("+e+","+n.width/2+","+n.height/2+")"},rgRotate:function(){this.rotatableNode.attr("transform",this.getRotateString())},rgTranslate:function(){this.vel.attr("transform",this.getTranslateString())},sgResize:function(t){var e=this.model,n=e.angle(),i=e.size(),r=this.scalableNode,o=!1;0<r.node.getElementsByTagName("path").length&&(o=!0);var s=r.getBBox({recursive:o}),a=i.width/(s.width||1),h=i.height/(s.height||1);r.attr("transform","scale("+a+","+h+")");var l=this.rotatableNode,u=l&&l.attr("transform");if(u){l.attr("transform",u+" rotate("+-n+","+i.width/2+","+i.height/2+")");var c=r.getBBox({target:this.paper.cells});e.set("position",{x:c.x,y:c.y},Nt({updateHandled:!0},t)),this.translate(),this.rotate()}this.update()},prepareEmbedding:function(t){t||(t={});var e=t.model||this.model,n=(t.paper||this.paper).model;e.startBatch("to-front"),e.toFront({deep:!0,ui:!0});var i=n.getElements().reduce(function(t,e){return Math.max(t,e.attributes.z||0)},0);n.getConnectedLinks(e,{deep:!0,includeEnclosed:!0}).forEach(function(t){t.attributes.z<=i&&t.set("z",i+1,{ui:!0})}),e.stopBatch("to-front");var r=e.parent();r&&n.getCell(r).unembed(e,{ui:!0})},processEmbedding:function(t){t||(t={});var e=t.model||this.model,n=t.paper||this.paper,i=n.options,r=[];jt(i.findParentBy)?r=Ut(i.findParentBy.call(n.model,this)).filter(function(t){return t instanceof Ce&&this.model.id!==t.id&&!t.isEmbeddedIn(this.model)}.bind(this)):r=n.model.findModelsUnderElement(e,{searchBy:i.findParentBy});i.frontParentOnly&&(r=r.slice(-1));for(var o=null,s=t.candidateEmbedView,a=r.length-1;0<=a;a--){var h=r[a];if(s&&s.model.id==h.id){o=s;break}var l=h.findView(n);if(i.validateEmbedding.call(n,this,l)){o=l;break}}o&&o!=s&&(this.clearEmbedding(t),t.candidateEmbedView=o.highlight(null,{embedding:!0})),!o&&s&&this.clearEmbedding(t)},clearEmbedding:function(t){t||(t={});var e=t.candidateEmbedView;e&&(e.unhighlight(null,{embedding:!0}),t.candidateEmbedView=null)},finalizeEmbedding:function(t){t||(t={});var e=t.candidateEmbedView,n=t.model||this.model,i=t.paper||this.paper;e&&(e.model.embed(n,{ui:!0}),e.unhighlight(null,{embedding:!0}),t.candidateEmbedView=null),_t(i.model.getConnectedLinks(n,{deep:!0}),"reparent",{ui:!0})},getDelegatedView:function(){for(var t=this,e=t.model,n=t.paper;t&&!e.isLink();){if(!e.isEmbedded()||t.can("stopDelegation"))return t;e=e.getParentCell(),t=n.findViewByModel(e)}return null},notifyPointerdown:function(t,e,n){We.prototype.pointerdown.call(this,t,e,n),this.notify("element:pointerdown",t,e,n)},notifyPointermove:function(t,e,n){We.prototype.pointermove.call(this,t,e,n),this.notify("element:pointermove",t,e,n)},notifyPointerup:function(t,e,n){this.notify("element:pointerup",t,e,n),We.prototype.pointerup.call(this,t,e,n)},pointerdblclick:function(t,e,n){We.prototype.pointerdblclick.apply(this,arguments),this.notify("element:pointerdblclick",t,e,n)},pointerclick:function(t,e,n){We.prototype.pointerclick.apply(this,arguments),this.notify("element:pointerclick",t,e,n)},contextmenu:function(t,e,n){We.prototype.contextmenu.apply(this,arguments),this.notify("element:contextmenu",t,e,n)},pointerdown:function(t,e,n){this.isPropagationStopped(t)||(this.notifyPointerdown(t,e,n),this.dragStart(t,e,n))},pointermove:function(t,e,n){var i=this.eventData(t);switch(i.action){case"magnet":this.dragMagnet(t,e,n);break;case"move":(i.delegatedView||this).drag(t,e,n);default:this.notifyPointermove(t,e,n)}this.eventData(t,i)},pointerup:function(t,e,n){var i=this.eventData(t);switch(i.action){case"magnet":this.dragMagnetEnd(t,e,n);break;case"move":(i.delegatedView||this).dragEnd(t,e,n);default:this.notifyPointerup(t,e,n)}var r=i.targetMagnet;r&&this.magnetpointerclick(t,r,e,n),this.checkMouseleave(t)},mouseover:function(t){We.prototype.mouseover.apply(this,arguments),this.notify("element:mouseover",t)},mouseout:function(t){We.prototype.mouseout.apply(this,arguments),this.notify("element:mouseout",t)},mouseenter:function(t){We.prototype.mouseenter.apply(this,arguments),this.notify("element:mouseenter",t)},mouseleave:function(t){We.prototype.mouseleave.apply(this,arguments),this.notify("element:mouseleave",t)},mousewheel:function(t,e,n,i){We.prototype.mousewheel.apply(this,arguments),this.notify("element:mousewheel",t,e,n,i)},onmagnet:function(t,e,n){this.dragMagnetStart(t,e,n)},magnetpointerdblclick:function(t,e,n,i){this.notify("element:magnet:pointerdblclick",t,e,n,i)},magnetcontextmenu:function(t,e,n,i){this.notify("element:magnet:contextmenu",t,e,n,i)},dragStart:function(t,e,n){var i=this.getDelegatedView();i&&i.can("elementMove")&&(this.eventData(t,{action:"move",delegatedView:i}),i.eventData(t,{pointerOffset:i.model.position().difference(e,n),restrictedArea:this.paper.getRestrictedArea(i)}))},dragMagnetStart:function(t,e,n){if(this.can("addLinkFromMagnet")){var i=t.currentTarget,r=this.paper;this.eventData(t,{targetMagnet:i}),t.stopPropagation(),r.options.validateMagnet(this,i,t)?(r.options.magnetThreshold<=0&&this.dragLinkStart(t,i,e,n),this.eventData(t,{action:"magnet"}),this.stopPropagation(t)):this.pointerdown(t,e,n),r.delegateDragEvents(this,t.data)}},dragLinkStart:function(t,e,n,i){this.model.startBatch("add-link");var r=this.addLinkFromMagnet(e,n,i);r.notifyPointerdown(t,n,i),r.eventData(t,r.startArrowheadMove("target",{whenNotAllowed:"remove"})),this.eventData(t,{linkView:r})},addLinkFromMagnet:function(t,e,n){var i=this.paper,r=i.model,o=i.getDefaultLink(this,t);return o.set({source:this.getLinkEnd(t,e,n,o,"source"),target:{x:e,y:n}}).addTo(r,{async:!1,ui:!0}),o.findView(i)},drag:function(t,e,n){var i=this.paper,r=i.options.gridSize,o=this.model,s=this.eventData(t),a=s.pointerOffset,h=s.restrictedArea,l=s.embedding,u=v(e+a.x,r),c=v(n+a.y,r);o.position(u,c,{restrictedArea:h,deep:!0,ui:!0}),i.options.embeddingMode&&(l||(this.prepareEmbedding(s),l=!0),this.processEmbedding(s)),this.eventData(t,{embedding:l})},dragMagnet:function(t,e,n){var i=this.eventData(t),r=i.linkView;if(r)r.pointermove(t,e,n);else{var o=this.paper,s=o.options.magnetThreshold,a=this.getEventTarget(t),h=i.targetMagnet;if("onleave"===s){if(h===a||K(h).contains(a))return}else if(o.eventData(t).mousemoved<=s)return;this.dragLinkStart(t,h,e,n)}},dragEnd:function(t,e,n){var i=this.eventData(t);i.embedding&&this.finalizeEmbedding(i)},dragMagnetEnd:function(t,e,n){var 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Use `joint.env.addTest(name, fn) to add a new test.`');var n=this._results[t];if(void 0!==n)return n;try{n=e()}catch(t){n=!1}return this._results[t]=n}},Ke=He.define("basic.Generic",{attrs:{".":{fill:"#ffffff",stroke:"none"}}}),Qe=Ke.define("basic.Rect",{attrs:{rect:{fill:"#ffffff",stroke:"#000000",width:100,height:60},text:{fill:"#000000",text:"","font-size":14,"ref-x":.5,"ref-y":.5,"text-anchor":"middle","y-alignment":"middle","font-family":"Arial, helvetica, sans-serif"}}},{markup:'<g class="rotatable"><g class="scalable"><rect/></g><text/></g>'}),tn=Ze.extend({presentationAttributes:Ze.addPresentationAttributes({attrs:["SCALE"]}),confirmUpdate:function(){var t=Ze.prototype.confirmUpdate.apply(this,arguments);return this.hasFlag(t,"SCALE")&&(this.resize(),t=this.removeFlag(t,"SCALE")),t}}),en=Ke.define("basic.Text",{attrs:{text:{"font-size":18,fill:"#000000"}}},{markup:'<g class="rotatable"><g 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class="scalable"><ellipse/></g><text/></g>'}),on=Ke.define("basic.Polygon",{size:{width:60,height:40},attrs:{polygon:{fill:"#ffffff",stroke:"#000000"},text:{"font-size":14,text:"","text-anchor":"middle","ref-x":.5,"ref-dy":20,"y-alignment":"middle",fill:"#000000","font-family":"Arial, helvetica, sans-serif"}}},{markup:'<g class="rotatable"><g class="scalable"><polygon/></g><text/></g>'}),sn=Ke.define("basic.Polyline",{size:{width:60,height:40},attrs:{polyline:{fill:"#ffffff",stroke:"#000000"},text:{"font-size":14,text:"","text-anchor":"middle","ref-x":.5,"ref-dy":20,"y-alignment":"middle",fill:"#000000","font-family":"Arial, helvetica, sans-serif"}}},{markup:'<g class="rotatable"><g class="scalable"><polyline/></g><text/></g>'}),an=Ke.define("basic.Image",{attrs:{text:{"font-size":14,text:"","text-anchor":"middle","ref-x":.5,"ref-dy":20,"y-alignment":"middle",fill:"#000000","font-family":"Arial, helvetica, sans-serif"}}},{markup:'<g class="rotatable"><g class="scalable"><image/></g><text/></g>'}),hn=Ke.define("basic.Path",{size:{width:60,height:60},attrs:{path:{fill:"#ffffff",stroke:"#000000"},text:{"font-size":14,text:"","text-anchor":"middle",ref:"path","ref-x":.5,"ref-dy":10,fill:"#000000","font-family":"Arial, helvetica, sans-serif"}}},{markup:'<g class="rotatable"><g class="scalable"><path/></g><text/></g>'}),ln=hn.define("basic.Rhombus",{attrs:{path:{d:"M 30 0 L 60 30 30 60 0 30 z"},text:{"ref-y":.5,"ref-dy":null,"y-alignment":"middle"}}}),un=Je.test("svgforeignobject"),cn=Ke.define("basic.TextBlock",{attrs:{rect:{fill:"#ffffff",stroke:"#000000",width:80,height:100},text:{fill:"#000000","font-size":14,"font-family":"Arial, helvetica, sans-serif"},".content":{text:"","ref-x":.5,"ref-y":.5,"y-alignment":"middle","x-alignment":"middle"}},content:""},{markup:['<g class="rotatable">','<g class="scalable"><rect/></g>',un?'<foreignObject class="fobj"><body xmlns="http://www.w3.org/1999/xhtml"><div class="content"/></body></foreignObject>':'<text class="content"/>',"</g>"].join(""),initialize:function(){this.listenTo(this,"change:size",this.updateSize),this.listenTo(this,"change:content",this.updateContent),this.updateSize(this,this.get("size")),this.updateContent(this,this.get("content")),Ke.prototype.initialize.apply(this,arguments)},updateSize:function(t,e){this.attr({".fobj":Nt({},e),div:{style:Nt({},e)}})},updateContent:function(t,e){un?this.attr({".content":{html:mt(e)}}):this.attr({".content":{text:e}})},setForeignObjectSize:function(){this.updateSize.apply(this,arguments)},setDivContent:function(){this.updateContent.apply(this,arguments)}}),dn=Ze.extend({presentationAttributes:un?Ze.prototype.presentationAttributes:Ze.addPresentationAttributes({content:["CONTENT"],size:["CONTENT"]}),initFlag:["RENDER","CONTENT"],confirmUpdate:function(){var t=Ze.prototype.confirmUpdate.apply(this,arguments);return this.hasFlag(t,"CONTENT")&&(this.updateContent(this.model),t=this.removeFlag(t,"CONTENT")),t},update:function(t,e){var n=this.model;if(un)Ze.prototype.update.call(this,n,e);else{var i=te(e||n.get("attrs"),".content");Ze.prototype.update.call(this,n,i),e&&!Kt(e,".content")||this.updateContent(n,e)}},updateContent:function(t,e){var n=se({},(e||t.get("attrs"))[".content"]);n=te(n,"text");var i=vt(t.get("content"),t.get("size"),n,{svgDocument:this.paper.svg}),r=ot({},".content",n,"/");r[".content"].text=i,Ze.prototype.update.call(this,t,r)}}),fn={Generic:Ke,Rect:Qe,TextView:tn,Text:en,Circle:nn,Ellipse:rn,Polygon:on,Polyline:sn,Image:an,Path:hn,Rhombus:ln,TextBlock:cn,TextBlockView:dn},pn=Ce.extend({markup:['<path class="connection" stroke="black" d="M 0 0 0 0"/>','<path class="marker-source" fill="black" stroke="black" d="M 0 0 0 0"/>','<path class="marker-target" fill="black" stroke="black" d="M 0 0 0 0"/>','<path class="connection-wrap" d="M 0 0 0 0"/>','<g class="labels"/>','<g class="marker-vertices"/>','<g class="marker-arrowheads"/>','<g class="link-tools"/>'].join(""),toolMarkup:['<g class="link-tool">','<g class="tool-remove" event="remove">','<circle r="11" />','<path transform="scale(.8) translate(-16, -16)" d="M24.778,21.419 19.276,15.917 24.777,10.415 21.949,7.585 16.447,13.087 10.945,7.585 8.117,10.415 13.618,15.917 8.116,21.419 10.946,24.248 16.447,18.746 21.948,24.248z" />',"<title>Remove link.</title>","</g>",'<g class="tool-options" event="link:options">','<circle r="11" transform="translate(25)"/>','<path fill="white" transform="scale(.55) translate(29, -16)" d="M31.229,17.736c0.064-0.571,0.104-1.148,0.104-1.736s-0.04-1.166-0.104-1.737l-4.377-1.557c-0.218-0.716-0.504-1.401-0.851-2.05l1.993-4.192c-0.725-0.91-1.549-1.734-2.458-2.459l-4.193,1.994c-0.647-0.347-1.334-0.632-2.049-0.849l-1.558-4.378C17.165,0.708,16.588,0.667,16,0.667s-1.166,0.041-1.737,0.105L12.707,5.15c-0.716,0.217-1.401,0.502-2.05,0.849L6.464,4.005C5.554,4.73,4.73,5.554,4.005,6.464l1.994,4.192c-0.347,0.648-0.632,1.334-0.849,2.05l-4.378,1.557C0.708,14.834,0.667,15.412,0.667,16s0.041,1.165,0.105,1.736l4.378,1.558c0.217,0.715,0.502,1.401,0.849,2.049l-1.994,4.193c0.725,0.909,1.549,1.733,2.459,2.458l4.192-1.993c0.648,0.347,1.334,0.633,2.05,0.851l1.557,4.377c0.571,0.064,1.148,0.104,1.737,0.104c0.588,0,1.165-0.04,1.736-0.104l1.558-4.377c0.715-0.218,1.399-0.504,2.049-0.851l4.193,1.993c0.909-0.725,1.733-1.549,2.458-2.458l-1.993-4.193c0.347-0.647,0.633-1.334,0.851-2.049L31.229,17.736zM16,20.871c-2.69,0-4.872-2.182-4.872-4.871c0-2.69,2.182-4.872,4.872-4.872c2.689,0,4.871,2.182,4.871,4.872C20.871,18.689,18.689,20.871,16,20.871z"/>',"<title>Link 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i?Ot(i):i:this.get("manhattan")?{name:"orthogonal"}:null}var r="object"==typeof t||"function"==typeof t,o=r?t:{name:t,args:e},s=r?e:n;return this.set("router",o,s)},connector:function(t,e,n){if(void 0===t){var i=this.get("connector");return i?"object"==typeof i?Ot(i):i:this.get("smooth")?{name:"smooth"}:null}var r="object"==typeof t||"function"==typeof t,o=r?t:{name:t,args:e},s=r?e:n;return this.set("connector",o,s)},label:function(t,e,n){var i=this.labels();return(t=isFinite(t)&&null!==t?0|t:0)<0&&(t=i.length+t),arguments.length<=1?this.prop(["labels",t]):this.prop(["labels",t],e,n)},labels:function(t,e){return 0===arguments.length?(t=this.get("labels"),Array.isArray(t)?t.slice():[]):(Array.isArray(t)||(t=[]),this.set("labels",t,e))},insertLabel:function(t,e,n){if(!e)throw new Error("dia.Link: no label provided");var i=this.labels(),r=i.length;return(t=isFinite(t)&&null!==t?0|t:r)<0&&(t=r+t+1),i.splice(t,0,e),this.labels(i,n)},appendLabel:function(t,e){return this.insertLabel(-1,t,e)},removeLabel:function(t,e){var n=this.labels();return t=isFinite(t)&&null!==t?0|t:-1,n.splice(t,1),this.labels(n,e)},vertex:function(t,e,n){var i=this.vertices();if((t=isFinite(t)&&null!==t?0|t:0)<0&&(t=i.length+t),arguments.length<=1)return this.prop(["vertices",t]);var r=this._normalizeVertex(e);return this.prop(["vertices",t],r,n)},vertices:function(t,e){if(0===arguments.length)return t=this.get("vertices"),Array.isArray(t)?t.slice():[];Array.isArray(t)||(t=[]);for(var n=[],i=0;i<t.length;i++){var r=t[i],o=this._normalizeVertex(r);n.push(o)}return this.set("vertices",n,e)},insertVertex:function(t,e,n){if(!e)throw new Error("dia.Link: no vertex provided");var i=this.vertices(),r=i.length;(t=isFinite(t)&&null!==t?0|t:r)<0&&(t=r+t+1);var o=this._normalizeVertex(e);return i.splice(t,0,o),this.vertices(i,n)},removeVertex:function(t,e){var n=this.vertices();return t=isFinite(t)&&null!==t?0|t:-1,n.splice(t,1),this.vertices(n,e)},_normalizeVertex:function(t){return!Gt(t)?{x:t.x,y:t.y}:t},translate:function(e,n,t){return(t=t||{}).translateBy=t.translateBy||this.id,t.tx=e,t.ty=n,this.applyToPoints(function(t){return{x:(t.x||0)+e,y:(t.y||0)+n}},t)},scale:function(e,n,i,t){return this.applyToPoints(function(t){return z(t).scale(e,n,i).toJSON()},t)},applyToPoints:function(t,e){if(!jt(t))throw new TypeError("dia.Link: applyToPoints expects its first parameter to be a function.");var n={},i=this.attributes,r=i.source,o=i.target;r.id||(n.source=t(r)),o.id||(n.target=t(o));var s=this.vertices();return 0<s.length&&(n.vertices=s.map(t)),this.set(n,e)},getSourcePoint:function(){var t=this.getSourceCell();return t?t.getPointFromConnectedLink(this,"source"):new z(this.source())},getTargetPoint:function(){var t=this.getTargetCell();return t?t.getPointFromConnectedLink(this,"target"):new z(this.target())},getPointFromConnectedLink:function(){return this.getPolyline().pointAt(.5)},getPolyline:function(){var t=[this.getSourcePoint(),this.getTargetPoint()],e=this.vertices();return 0<e.length&&Array.prototype.push.apply(t,e.map(z)),new L(t)},getBBox:function(){return this.getPolyline().bbox()},reparent:function(t){var e;if(this.graph){var n=this.getSourceElement(),i=this.getTargetElement(),r=this.getParentCell();n&&i&&(e=n===i||n.isEmbeddedIn(i)?i:i.isEmbeddedIn(n)?n:this.graph.getCommonAncestor(n,i)),!r||e&&e.id===r.id||r.unembed(this,t),e&&e.embed(this,t)}return e},hasLoop:function(t){t=t||{};var e=this.attributes,n=e.source,i=e.target,r=n.id,o=i.id;if(!r||!o)return!1;var s=r===o;if(!s&&t.deep&&this.graph){var a=this.getSourceCell(),h=this.getTargetCell();s=a.isEmbeddedIn(h)||h.isEmbeddedIn(a)}return s},getSourceCell:function(){var t=this.graph,e=this.attributes.source;return e&&e.id&&t&&t.getCell(e.id)||null},getSourceElement:function(){var t=this,e={};do{if(e[t.id])return null;e[t.id]=!0,t=t.getSourceCell()}while(t&&t.isLink());return t},getTargetCell:function(){var t=this.graph,e=this.attributes.target;return e&&e.id&&t&&t.getCell(e.id)||null},getTargetElement:function(){var t=this,e={};do{if(e[t.id])return null;e[t.id]=!0,t=t.getTargetCell()}while(t&&t.isLink());return t},getRelationshipAncestor:function(){var t;if(this.graph){var e=[this,this.getSourceElement(),this.getTargetElement()].filter(function(t){return!!t});t=this.graph.getCommonAncestor.apply(this.graph,e)}return t||null},isRelationshipEmbeddedIn:function(t){var e=ue(t)||le(t)?t:t.id,n=this.getRelationshipAncestor();return!!n&&(n.id===e||n.isEmbeddedIn(e))},_getDefaultLabel:function(){var t=this.get("defaultLabel")||this.defaultLabel||{},e={};return e.markup=t.markup||this.get("labelMarkup")||this.labelMarkup,e.position=t.position,e.attrs=t.attrs,e.size=t.size,e}},{endsEqual:function(t,e){var n=t.port===e.port||!t.port&&!e.port;return 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H=Si(D.clone().offset(T.gridOffsetX,T.gridOffsetY),w,h),$=ki(H);if(!b.isClose($)&&n.isPointAccessible(H)){if(0<=_.indexOf($))if(!H.equals(f))if(xi(q,bi(H,f,F,w,i))>i.maxAllowedDirectionChange)continue;var Y=I+T.cost+(G?0:i.penalties[L]);(!b.isOpen($)||Y<P[$])&&(x[$]=H,A[$]=D,P[$]=Y,b.add($,Y+Ti(H,g)))}}}B--}}return i.fallbackRoute.call(this,d,f,i)}function Ni(t,e,n){!function(t){if(t.directions=Qt(t,"directions"),t.penalties=Qt(t,"penalties"),t.paddingBox=Qt(t,"paddingBox"),t.padding=Qt(t,"padding"),t.padding){var e=xt(t.padding);t.paddingBox={x:-e.left,y:-e.top,width:e.left+e.right,height:e.top+e.bottom}}Ut(t.directions).forEach(function(t){var e=new z(0,0),n=new z(t.offsetX,t.offsetY);t.angle=b(e.theta(n))})}(e),n.options.perpendicular=!!e.perpendicular;for(var i,r,o=mi(n,e),s=yi(n,e),a=wi(n,e),h=new gi(e).build(n.paper.model,n.model),l=Ut(t).map(z),u=[],c=a,d=0,f=l.length;d<=f;d++){var p=null;if(r=i||o,!(i=l[d]))if(i=s,(!n.model.get("source").id||!n.model.get("target").id)&&jt(e.draggingRoute)){var g=r===o?a:r,v=i.origin();p=e.draggingRoute.call(n,g,v,e)}if(null===(p=p||Mi.call(n,r,i,h,e)))return e.fallbackRouter(t,e,n);var m=p[0];m&&m.equals(c)&&p.shift(),c=p[p.length-1]||c,Array.prototype.push.apply(u,p)}return u}gi.prototype.build=function(r,o){var c=this.options,d=Ut(c.excludeEnds).reduce(function(t,e){var n=o.get(e);if(n){var i=r.getCell(n.id);i&&t.push(i)}return t},[]),f=[],t=r.getCell(o.get("source").id);t&&(f=Jt(f,t.getAncestors().map(function(t){return t.id})));var e=r.getCell(o.get("target").id);e&&(f=Jt(f,e.getAncestors().map(function(t){return t.id})));var p=this.mapGridSize;return r.getElements().reduce(function(t,e){var n=Ut(c.excludeTypes).includes(e.get("type")),i=d.find(function(t){return t.id===e.id}),r=f.includes(e.id);if(!(n||i||r))for(var o=e.getBBox().moveAndExpand(c.paddingBox),s=o.origin().snapToGrid(p),a=o.corner().snapToGrid(p),h=s.x;h<=a.x;h+=p)for(var l=s.y;l<=a.y;l+=p){var u=h+"@"+l;t[u]=t[u]||[],t[u].push(o)}return t},this.map),this},gi.prototype.isPointAccessible=function(e){var t=e.clone().snapToGrid(this.mapGridSize).toString();return Ut(this.map[t]).every(function(t){return!t.containsPoint(e)})},vi.prototype.add=function(t,e){this.hash[t]?this.items.splice(this.items.indexOf(t),1):this.hash[t]=this.OPEN,this.values[t]=e;var n=Bt(this.items,t,function(t){return this.values[t]}.bind(this));this.items.splice(n,0,t)},vi.prototype.remove=function(t){this.hash[t]=this.CLOSE},vi.prototype.isOpen=function(t){return this.hash[t]===this.OPEN},vi.prototype.isClose=function(t){return this.hash[t]===this.CLOSE},vi.prototype.isEmpty=function(){return 0===this.items.length},vi.prototype.pop=function(){var t=this.items.shift();return this.remove(t),t};var Vi=function(t,e,n){return Ni(t,Nt({},pi,e),n)},Fi={maxAllowedDirectionChange:45,diagonalCost:function(){var t=this.step;return Math.ceil(Math.sqrt(t*t<<1))},directions:function(){var t=this.step,e=this.cost(),n=this.diagonalCost();return[{offsetX:t,offsetY:0,cost:e},{offsetX:t,offsetY:t,cost:n},{offsetX:0,offsetY:t,cost:e},{offsetX:-t,offsetY:t,cost:n},{offsetX:-t,offsetY:0,cost:e},{offsetX:-t,offsetY:-t,cost:n},{offsetX:0,offsetY:-t,cost:e},{offsetX:t,offsetY:-t,cost:n}]},fallbackRoute:function(t,e,n){var i=t.theta(e),r=[],o={x:e.x,y:t.y},s={x:t.x,y:e.y};if(90<i%180){var a=o;o=s,s=a}var h=i%90<45?o:s,l=new O(t,h),u=90*Math.ceil(i/90),c=z.fromPolar(l.squaredLength(),A(u+135),h),d=new O(e,c),f=l.intersection(d),p=f||e,g=f?p:t,v=360/n.directions.length,m=g.theta(e),y=b(m+v/2),w=v*Math.floor(y/v);return n.previousDirectionAngle=w,p&&r.push(p.round()),r.push(e),r}},_i={normal:function(t,e,n){return t},oneSide:function(t,e,n){var i,r,o,s=e.side||"bottom",a=xt(e.padding||40),h=n.sourceBBox,l=n.targetBBox,u=h.center(),c=l.center();switch(s){case"bottom":o=1,i="y",r="height";break;case"top":o=-1,i="y",r="height";break;case"left":o=-1,i="x",r="width";break;case"right":o=1,i="x",r="width";break;default:throw new Error("Router: invalid side")}return u[i]+=o*(h[r]/2+a[s]),c[i]+=o*(l[r]/2+a[s]),0<o*(u[i]-c[i])?c[i]=u[i]:u[i]=c[i],[u].concat(t,c)},orthogonal:fi,manhattan:Vi,metro:function(t,e,n){if(!jt(Vi))throw new Error("Metro requires the manhattan router.");return Vi(t,Nt({},Fi,e),n)}};function Bi(s){return function(t,e,n,i){if(n instanceof Element){var r,o=this.paper.findView(n);if(o)if(o.isNodeConnection(n))r=Ri(o,"fixedAt"in i?i.fixedAt:"50%");else r=o.getNodeBBox(n).center();else r=new z;return s.call(this,t,e,r,i)}return s.apply(this,arguments)}}function Ri(t,e){var n=parseFloat(e);return pt(e)?t.getPointAtRatio(n/100):t.getPointAtLength(n)}var Oi=Bi(function(t,e,n,i){var r=t.getConnection(),o=t.getConnectionSubdivisions(),s=new O(n.clone().offset(0,1e6),n.clone().offset(0,-1e6)),a=new O(n.clone().offset(1e6,0),n.clone().offset(-1e6,0)),h=s.intersect(r,{segmentSubdivisions:o}),l=a.intersect(r,{segmentSubdivisions:o}),u=[];return h&&Array.prototype.push.apply(u,h),l&&Array.prototype.push.apply(u,l),0<u.length?n.chooseClosest(u):"fallbackAt"in i?Ri(t,i.fallbackAt):Di(t,e,n,i)}),Di=Bi(function(t,e,n,i){var r=t.getClosestPoint(n);return r||new z}),zi={resolveRef:Bi,connectionRatio:function(t,e,n,i){var r="ratio"in i?i.ratio:.5;return t.getPointAtRatio(r)},connectionLength:function(t,e,n,i){var r="length"in i?i.length:20;return t.getPointAtLength(r)},connectionPerpendicular:Oi,connectionClosest:Di};function Ii(c){return function(t,e,n,i){var r=!!i.rotate,o=r?t.getNodeUnrotatedBBox(e):t.getNodeBBox(e),s=o[c](),a=i.dx;if(a){var h=pt(a);a=parseFloat(a),isFinite(a)&&(h&&(a/=100,a*=o.width),s.x+=a)}var l=i.dy;if(l){var u=pt(l);l=parseFloat(l),isFinite(l)&&(u&&(l/=100,l*=o.height),s.y+=l)}return r?s.rotate(t.model.getBBox().center(),-t.model.angle()):s}}var ji={center:Ii("center"),top:Ii("topMiddle"),bottom:Ii("bottomMiddle"),left:Ii("leftMiddle"),right:Ii("rightMiddle"),topLeft:Ii("origin"),topRight:Ii("topRight"),bottomLeft:Ii("bottomLeft"),bottomRight:Ii("corner"),perpendicular:Bi(function(t,e,n,i){var r=t.model.angle(),o=t.getNodeBBox(e),s=o.center(),a=o.origin(),h=o.corner(),l=i.padding;if(isFinite(l)||(l=0),a.y+l<=n.y&&n.y<=h.y-l){var u=n.y-s.y;s.x+=0===r||180===r?0:1*u/Math.tan(A(r)),s.y+=u}else if(a.x+l<=n.x&&n.x<=h.x-l){var c=n.x-s.x;s.y+=90===r||270===r?0:c*Math.tan(A(r)),s.x+=c}return s}),midSide:Bi(function(t,e,n,i){var r,o,s,a=!!i.rotate;a?(r=t.getNodeUnrotatedBBox(e),s=t.model.getBBox().center(),o=t.model.angle()):r=t.getNodeBBox(e);var h,l=i.padding;switch(isFinite(l)&&r.inflate(l),a&&n.rotate(s,o),r.sideNearestToPoint(n)){case"left":h=r.leftMiddle();break;case"right":h=r.rightMiddle();break;case"top":h=r.topMiddle();break;case"bottom":h=r.bottomMiddle()}return a?h.rotate(s,-o):h}),modelCenter:function(t,e,n,i,r){return t.model.getPointFromConnectedLink(this.model,r).offset(i.dx,i.dy)}},Gi=s.Collection.extend({initialize:function(t,e){e.cellNamespace?this.cellNamespace=e.cellNamespace:this.cellNamespace="undefined"!=typeof joint&&Kt(joint,"shapes")?joint.shapes:null,this.graph=e.graph},model:function(t,e){var n=e.collection,i=n.cellNamespace,r=new("link"===t.type?pn:rt(i,t.type,".")||He)(t,e);return e.dry||(r.graph=n.graph),r},comparator:function(t){return t.get("z")||0}}),Ui=s.Model.extend({_batches:{},initialize:function(t,e){var n=new Gi([],{model:(e=e||{}).cellModel,cellNamespace:e.cellNamespace,graph:this});s.Model.prototype.set.call(this,"cells",n),n.on("all",this.trigger,this),this.on("change:z",this._sortOnChangeZ,this),this._out={},this._in={},this._nodes={},this._edges={},n.on("add",this._restructureOnAdd,this),n.on("remove",this._restructureOnRemove,this),n.on("reset",this._restructureOnReset,this),n.on("change:source",this._restructureOnChangeSource,this),n.on("change:target",this._restructureOnChangeTarget,this),n.on("remove",this._removeCell,this)},_sortOnChangeZ:function(){this.get("cells").sort()},_restructureOnAdd:function(t){if(t.isLink()){this._edges[t.id]=!0;var e=t.attributes,n=e.source,i=e.target;n.id&&((this._out[n.id]||(this._out[n.id]={}))[t.id]=!0),i.id&&((this._in[i.id]||(this._in[i.id]={}))[t.id]=!0)}else this._nodes[t.id]=!0},_restructureOnRemove:function(t){if(t.isLink()){delete this._edges[t.id];var e=t.attributes,n=e.source,i=e.target;n.id&&this._out[n.id]&&this._out[n.id][t.id]&&delete this._out[n.id][t.id],i.id&&this._in[i.id]&&this._in[i.id][t.id]&&delete this._in[i.id][t.id]}else delete this._nodes[t.id]},_restructureOnReset:function(t){t=t.models,this._out={},this._in={},this._nodes={},this._edges={},t.forEach(this._restructureOnAdd,this)},_restructureOnChangeSource:function(t){var e=t.previous("source");e.id&&this._out[e.id]&&delete this._out[e.id][t.id];var n=t.attributes.source;n.id&&((this._out[n.id]||(this._out[n.id]={}))[t.id]=!0)},_restructureOnChangeTarget:function(t){var e=t.previous("target");e.id&&this._in[e.id]&&delete this._in[e.id][t.id];var n=t.get("target");n.id&&((this._in[n.id]||(this._in[n.id]={}))[t.id]=!0)},getOutboundEdges:function(t){return this._out&&this._out[t]||{}},getInboundEdges:function(t){return this._in&&this._in[t]||{}},toJSON:function(){var t=s.Model.prototype.toJSON.apply(this,arguments);return t.cells=this.get("cells").toJSON(),t},fromJSON:function(t,e){if(!t.cells)throw new Error("Graph JSON must contain cells array.");return this.set(t,e)},set:function(t,e,n){var i;return"object"==typeof t?(i=t,n=e):(i={})[t]=e,i.hasOwnProperty("cells")&&(this.resetCells(i.cells,n),i=te(i,"cells")),s.Model.prototype.set.call(this,i,n)},clear:function(t){t=Nt({},t,{clear:!0});var e=this.get("cells");if(0===e.length)return this;this.startBatch("clear",t);for(var n=e.sortBy(function(t){return t.isLink()?1:2});n.shift().remove(t),0<n.length;);return this.stopBatch("clear"),this},_prepareCell:function(t,e){var n;if(t instanceof s.Model?(n=t.attributes,t.graph||e&&e.dry||(t.graph=this)):n=t,!ue(n.type))throw new TypeError("dia.Graph: cell type must be a string.");return t},minZIndex:function(){var t=this.get("cells").first();return t&&t.get("z")||0},maxZIndex:function(){var t=this.get("cells").last();return t&&t.get("z")||0},addCell:function(t,e){return Array.isArray(t)?this.addCells(t,e):(t instanceof s.Model?t.has("z")||t.set("z",this.maxZIndex()+1):void 0===t.z&&(t.z=this.maxZIndex()+1),this.get("cells").add(this._prepareCell(t,e),e||{}),this)},addCells:function(t,e){return 0===t.length||(t=Yt(t),e.maxPosition=e.position=t.length-1,this.startBatch("add",e),t.forEach(function(t){this.addCell(t,e),e.position--},this),this.stopBatch("add",e)),this},resetCells:function(t,e){var n=Ut(t).map(function(t){return this._prepareCell(t,e)},this);return this.get("cells").reset(n,e),this},removeCells:function(t,e){return t.length&&(this.startBatch("remove"),_t(t,"remove",e),this.stopBatch("remove")),this},_removeCell:function(t,e,n){(n=n||{}).clear||(n.disconnectLinks?this.disconnectLinks(t,n):this.removeLinks(t,n)),this.get("cells").remove(t,{silent:!0}),t.graph===this&&(t.graph=null)},getCell:function(t){return this.get("cells").get(t)},getCells:function(){return this.get("cells").toArray()},getElements:function(){return Object.keys(this._nodes).map(this.getCell,this)},getLinks:function(){return Object.keys(this._edges).map(this.getCell,this)},getFirstCell:function(){return this.get("cells").first()},getLastCell:function(){return this.get("cells").last()},getConnectedLinks:function(t,a){var r=(a=a||{}).indirect,o=a.inbound,s=a.outbound;void 0===o&&void 0===s&&(o=s=!0);var h=[],l={};function u(i,t){if(ie(i.getOutboundEdges(t.id),function(t,e){if(!l[e]){var n=i.getCell(e);h.push(n),l[e]=!0,r&&(o&&c(i,n),s&&u(i,n))}}.bind(i)),r&&t.isLink()){var e=t.getTargetCell();e&&e.isLink()&&(l[e.id]||(h.push(e),u(i,e)))}}function c(i,t){if(ie(i.getInboundEdges(t.id),function(t,e){if(!l[e]){var n=i.getCell(e);h.push(n),l[e]=!0,r&&(o&&c(i,n),s&&u(i,n))}}.bind(i)),r&&t.isLink()){var e=t.getSourceCell();e&&e.isLink()&&(l[e.id]||(h.push(e),c(i,e)))}}if(s&&u(this,t),o&&c(this,t),a.deep){var e=t.getEmbeddedCells({deep:!0}),d={};e.forEach(function(t){t.isElement()&&(d[t.id]=!0)}),e.forEach(function(t){t.isLink()||(s&&ie(this.getOutboundEdges(t.id),function(t,e){if(!l[e]){var n=this.getCell(e).attributes,i=n.source,r=n.target,o=i.id,s=r.id;if(!a.includeEnclosed&&o&&d[o]&&s&&d[s])return;h.push(this.getCell(e)),l[e]=!0}}.bind(this)),o&&ie(this.getInboundEdges(t.id),function(t,e){if(!l[e]){var n=this.getCell(e).attributes,i=n.source,r=n.target,o=i.id,s=r.id;if(!a.includeEnclosed&&o&&d[o]&&s&&d[s])return;h.push(this.getCell(e)),l[e]=!0}}.bind(this)))},this)}return h},getNeighbors:function(h,l){l||(l={});var u=l.inbound,c=l.outbound;void 0===u&&void 0===c&&(u=c=!0);var t=this.getConnectedLinks(h,l).reduce(function(t,e){var n=e.attributes,i=n.source,r=n.target,o=e.hasLoop(l);if(u&&Kt(i,"id")&&!t[i.id]){var s=this.getCell(i.id);s.isElement()&&(!o&&(!s||s===h||l.deep&&s.isEmbeddedIn(h))||(t[i.id]=s))}if(c&&Kt(r,"id")&&!t[r.id]){var a=this.getCell(r.id);a.isElement()&&(!o&&(!a||a===h||l.deep&&a.isEmbeddedIn(h))||(t[r.id]=a))}return t}.bind(this),{});if(h.isLink()){if(u){var e=h.getSourceCell();e&&e.isElement()&&!t[e.id]&&(t[e.id]=e)}if(c){var n=h.getTargetCell();n&&n.isElement()&&!t[n.id]&&(t[n.id]=n)}}return Ut(t)},getCommonAncestor:function(){var t=Array.from(arguments).map(function(t){for(var e=[],n=t.get("parent");n;)e.push(n),n=this.getCell(n).get("parent");return e},this);t=t.sort(function(t,e){return t.length-e.length});var e=Ut(t.shift()).find(function(e){return t.every(function(t){return t.includes(e)})});return this.getCell(e)},getSuccessors:function(e,t){t=t||{};var n=[];return this.search(e,function(t){t!==e&&n.push(t)},Nt({},t,{outbound:!0})),n},cloneCells:de,cloneSubgraph:function(t,e){var n=this.getSubgraph(t,e);return this.cloneCells(n)},getSubgraph:function(t,e){e=e||{};var s=[],a={},h=[],n=[];return Ut(t).forEach(function(t){(a[t.id]||(s.push(t),(a[t.id]=t).isLink()?n.push(t):h.push(t)),e.deep)&&t.getEmbeddedCells({deep:!0}).forEach(function(t){a[t.id]||(s.push(t),(a[t.id]=t).isLink()?n.push(t):h.push(t))})}),n.forEach(function(t){var e=t.attributes,n=e.source,i=e.target;if(n.id&&!a[n.id]){var r=this.getCell(n.id);s.push(r),a[r.id]=r,h.push(r)}if(i.id&&!a[i.id]){var o=this.getCell(i.id);s.push(this.getCell(i.id)),a[o.id]=o,h.push(o)}},this),h.forEach(function(t){this.getConnectedLinks(t,e).forEach(function(t){var e=t.attributes,n=e.source,i=e.target;!a[t.id]&&n.id&&a[n.id]&&i.id&&a[i.id]&&(s.push(t),a[t.id]=t)})},this),s},getPredecessors:function(e,t){t=t||{};var n=[];return this.search(e,function(t){t!==e&&n.push(t)},Nt({},t,{inbound:!0})),n},search:function(t,e,n){(n=n||{}).breadthFirst?this.bfs(t,e,n):this.dfs(t,e,n)},bfs:function(t,e,n){void 0===n&&(n={});var i={},r={},o=[];for(o.push(t),r[t.id]=0;0<o.length;){var s=o.shift();if(!i[s.id]&&!(i[s.id]=!0)!==e.call(this,s,r[s.id]))for(var a=this.getNeighbors(s,n),h=0,l=a.length;h<l;h++){var u=a[h];r[u.id]=r[s.id]+1,o.push(u)}}},dfs:function(t,e,n){void 0===n&&(n={});var i={},r={},o=[];for(o.push(t),r[t.id]=0;0<o.length;){var s=o.pop();if(!i[s.id]&&!(i[s.id]=!0)!==e.call(this,s,r[s.id]))for(var a=this.getNeighbors(s,n),h=o.length,l=0,u=a.length;l<u;l++){var c=a[l];r[c.id]=r[s.id]+1,o.splice(h,0,c)}}},getSources:function(){var n=[];return ie(this._nodes,function(t,e){this._in[e]&&!zt(this._in[e])||n.push(this.getCell(e))}.bind(this)),n},getSinks:function(){var n=[];return ie(this._nodes,function(t,e){this._out[e]&&!zt(this._out[e])||n.push(this.getCell(e))}.bind(this)),n},isSource:function(t){return!this._in[t.id]||zt(this._in[t.id])},isSink:function(t){return!this._out[t.id]||zt(this._out[t.id])},isSuccessor:function(e,n){var i=!1;return this.search(e,function(t){if(t===n&&t!==e)return!(i=!0)},{outbound:!0}),i},isPredecessor:function(e,n){var i=!1;return this.search(e,function(t){if(t===n&&t!==e)return!(i=!0)},{inbound:!0}),i},isNeighbor:function(t,r,e){var o=(e=e||{}).inbound,s=e.outbound;void 0===o&&void 0===s&&(o=s=!0);var a=!1;return this.getConnectedLinks(t,e).forEach(function(t){var e=t.attributes,n=e.source,i=e.target;return o&&Kt(n,"id")&&n.id===r.id?!(a=!0):s&&Kt(i,"id")&&i.id===r.id?!(a=!0):void 0}),a},disconnectLinks:function(e,n){this.getConnectedLinks(e).forEach(function(t){t.set(t.attributes.source.id===e.id?"source":"target",{x:0,y:0},n)})},removeLinks:function(t,e){_t(this.getConnectedLinks(t),"remove",e)},findModelsFromPoint:function(e){return this.getElements().filter(function(t){return t.getBBox().containsPoint(e)})},findModelsInArea:function(e,t){e=k(e);var n=(t=Vt(t||{},{strict:!1})).strict?"containsRect":"intersect";return this.getElements().filter(function(t){return e[n](t.getBBox())})},findModelsUnderElement:function(e,t){t=Vt(t||{},{searchBy:"bbox"});var n=e.getBBox();return("bbox"===t.searchBy?this.findModelsInArea(n):this.findModelsFromPoint(n[t.searchBy]())).filter(function(t){return e.id!==t.id&&!t.isEmbeddedIn(e)})},getBBox:function(){return this.getCellsBBox(this.getCells())},getCellsBBox:function(t,r){return r||(r={}),Ut(t).reduce(function(t,e){var n=e.getBBox(r);if(!n)return t;var i=e.angle();return i&&(n=n.bbox(i)),t?t.union(n):n},null)},translate:function(t,e,n){var i=this.getCells().filter(function(t){return!t.isEmbedded()});return _t(i,"translate",t,e,n),this},resize:function(t,e,n){return this.resizeCells(t,e,this.getCells(),n)},resizeCells:function(t,e,n,i){var r=this.getCellsBBox(n);if(r){var o=Math.max(t/r.width,0),s=Math.max(e/r.height,0);_t(n,"scale",o,s,r.origin(),i)}return this},startBatch:function(t,e){return e=e||{},this._batches[t]=(this._batches[t]||0)+1,this.trigger("batch:start",Nt({},e,{batchName:t}))},stopBatch:function(t,e){return e=e||{},this._batches[t]=(this._batches[t]||0)-1,this.trigger("batch:stop",Nt({},e,{batchName:t}))},hasActiveBatch:function(t){var e=this._batches;return(0===arguments.length?Ut(e):Array.isArray(t)?t:[t]).some(function(t){return 0<e[t]})}},{validations:{multiLinks:function(t,e){var n=e.attributes,r=n.source,o=n.target;if(r.id&&o.id){var i=e.getSourceCell();if(i)if(1<t.getConnectedLinks(i,{outbound:!0}).filter(function(t){var e=t.attributes,n=e.source,i=e.target;return n&&n.id===r.id&&(!n.port||n.port===r.port)&&i&&i.id===o.id&&(!i.port||i.port===o.port)}).length)return!1}return!0},linkPinning:function(t,e){var n=e.attributes,i=n.source,r=n.target;return i.id&&r.id}}});Te(Ui.prototype,["resetCells","addCells","removeCells"],Le.cells);var qi=We.extend({className:function(){var t=We.prototype.className.apply(this).split(" ");return t.push("link"),t.join(" ")},options:{shortLinkLength:105,doubleLinkTools:!1,longLinkLength:155,linkToolsOffset:40,doubleLinkToolsOffset:65,sampleInterval:50},_labelCache:null,_labelSelectors:null,_markerCache:null,_V:null,_dragData:null,metrics:null,decimalsRounding:2,initialize:function(){We.prototype.initialize.apply(this,arguments),this._labelCache={},this._labelSelectors={},this._markerCache={},this._V={},this.metrics={}},presentationAttributes:{markup:["RENDER"],attrs:["UPDATE"],router:["UPDATE"],connector:["UPDATE"],smooth:["UPDATE"],manhattan:["UPDATE"],toolMarkup:["TOOLS"],labels:["LABELS"],labelMarkup:["LABELS"],vertices:["VERTICES","UPDATE"],vertexMarkup:["VERTICES"],source:["SOURCE","UPDATE"],target:["TARGET","UPDATE"]},initFlag:["RENDER","SOURCE","TARGET"],UPDATE_PRIORITY:1,confirmUpdate:function(t,e){if(e||(e={}),this.hasFlag(t,"SOURCE")){if(!this.updateEndProperties("source"))return t;t=this.removeFlag(t,"SOURCE")}if(this.hasFlag(t,"TARGET")){if(!this.updateEndProperties("target"))return t;t=this.removeFlag(t,"TARGET")}var n=this.paper,i=this.sourceView,r=this.targetView;if(n&&(i&&!n.isViewMounted(i)||r&&!n.isViewMounted(r)))return t;if(this.hasFlag(t,"RENDER"))return this.render(),t=this.removeFlag(t,["RENDER","UPDATE","VERTICES","TOOLS","LABELS"]);this.hasFlag(t,"VERTICES")&&(this.renderVertexMarkers(),t=this.removeFlag(t,"VERTICES"));var o=this.model,s=o.attributes;return this.hasFlag(t,"UPDATE")&&(this.update(o,null,e),t=this.removeFlag(t,"UPDATE")),this.hasFlag(t,"LABELS")&&(this.onLabelsChange(o,s.labels,e),t=this.removeFlag(t,"LABELS")),this.hasFlag(t,"TOOLS")&&(this.renderTools().updateToolsPosition(),t=this.removeFlag(t,"TOOLS")),t},isLabelsRenderRequired:function(t){void 0===t&&(t={});var e=this.model.previous("labels");if(!e)return!0;if("propertyPathArray"in t&&"propertyValue"in t){var n=t.propertyPathArray||[],i=n.length;if(1<i)if(!!e[n[1]]){if(2===i)return"markup"in Object(t.propertyValue);if("markup"!==n[2])return!1}}return!0},onLabelsChange:function(t,e,n){this.isLabelsRenderRequired(n)?this.renderLabels():this.updateLabels(),this.updateLabelPositions()},render:function(){return this.vel.empty(),this._V={},this.renderMarkup(),this.renderLabels(),this.update(),this},renderMarkup:function(){var t=this.model,e=t.get("markup")||t.markup;if(!e)throw new Error("dia.LinkView: markup required");if(Array.isArray(e))return this.renderJSONMarkup(e);if("string"==typeof e)return this.renderStringMarkup(e);throw new Error("dia.LinkView: invalid markup")},renderJSONMarkup:function(t){var e=this.parseDOMJSON(t,this.el);this.selectors=e.selectors,this.vel.append(e.fragment)},renderStringMarkup:function(t){var e=K(t);Array.isArray(e)||(e=[e]);for(var n=this._V,i=0,r=e.length;i<r;i++){var o=e[i],s=o.attr("class");s&&(s=et(s),n[C.camelCase(s)]=o)}this.renderTools(),this.renderVertexMarkers(),this.renderArrowheadMarkers(),this.vel.append(e)},_getLabelMarkup:function(t){if(t){if(Array.isArray(t))return this.parseDOMJSON(t,null);if("string"==typeof t)return this._getLabelStringMarkup(t);throw new Error("dia.linkView: invalid label markup")}},_getLabelStringMarkup:function(t){var e=K(t),n=document.createDocumentFragment();if(Array.isArray(e))for(var i=0,r=e.length;i<r;i++){var o=e[i].node;n.appendChild(o)}else n.appendChild(e.node);return{fragment:n,selectors:{}}},_normalizeLabelMarkup:function(t){if(t){var e,n=t.fragment;if(!(t.fragment instanceof DocumentFragment&&t.fragment.hasChildNodes()))throw new Error("dia.LinkView: invalid label markup.");var i=n.childNodes;return(e=1<i.length||"G"!==i[0].nodeName.toUpperCase()?K("g").append(n):K(i[0])).addClass("label"),{node:e.node,selectors:t.selectors}}},renderLabels:function(){var t=this._V,e=t.labels,n=this._labelCache={},i=this._labelSelectors={},r=this.model,o=r.attributes.labels||[],s=o.length;if(0===s)return e&&e.remove(),this;e?e.empty():e=t.labels=K("g").addClass("labels");for(var a=e.node,h=0;h<s;h++){var l,u,c=o[h],d=this._normalizeLabelMarkup(this._getLabelMarkup(c.markup));if(d)l=d.node,u=d.selectors;else{var f=r._builtins.defaultLabel,p=this._normalizeLabelMarkup(this._getLabelMarkup(f.markup)),g=r._getDefaultLabel(),v=this._normalizeLabelMarkup(this._getLabelMarkup(g.markup))||p;l=v.node,u=v.selectors}l.setAttribute("label-idx",h),a.appendChild(l),n[h]=l;var m=this.selector;if(u[m])throw new Error("dia.LinkView: ambiguous label root selector.");u[m]=l,i[h]=u}return a.parentNode||this.el.appendChild(a),this.updateLabels(),this},_mergeLabelAttrs:function(t,e,n,i){return null===e?null:void 0!==e?t?se({},n,e):se({},i,n,e):null===n?null:void 0!==n?t?n:se({},i,n):t?void 0:i},updateLabels:function(){if(!this._V.labels)return this;for(var t=this.model,e=t.get("labels")||[],n=this.can("labelMove"),i=t._builtins.defaultLabel.attrs,r=t._getDefaultLabel(),o=r.markup,s=r.attrs,a=0,h=e.length;a<h;a++){var l=this._labelCache[a];l.setAttribute("cursor",n?"move":"default");var u=this._labelSelectors[a],c=e[a],d=c.markup,f=c.attrs,p=this._mergeLabelAttrs(d||o,f,s,i);this.updateDOMSubtreeAttributes(l,p,{rootBBox:new X(c.size),selectors:u})}return this},renderTools:function(){if(!this._V.linkTools)return this;var t,e=C(this._V.linkTools.node).empty(),n=Et(this.model.get("toolMarkup")||this.model.toolMarkup),i=K(n());(e.append(i.node),this._toolCache=i,this.options.doubleLinkTools)&&(t=this.model.get("doubleToolMarkup")||this.model.doubleToolMarkup?(n=Et(this.model.get("doubleToolMarkup")||this.model.doubleToolMarkup),K(n())):i.clone(),e.append(t.node),this._tool2Cache=t);return this},renderVertexMarkers:function(){if(!this._V.markerVertices)return this;var n=C(this._V.markerVertices.node).empty(),i=Et(this.model.get("vertexMarkup")||this.model.vertexMarkup);return this.model.vertices().forEach(function(t,e){n.append(K(i(Nt({idx:e},t))).node)}),this},renderArrowheadMarkers:function(){if(!this._V.markerArrowheads)return this;var t=C(this._V.markerArrowheads.node);t.empty();var e=Et(this.model.get("arrowheadMarkup")||this.model.arrowheadMarkup);return this._V.sourceArrowhead=K(e({end:"source"})),this._V.targetArrowhead=K(e({end:"target"})),t.append(this._V.sourceArrowhead.node,this._V.targetArrowhead.node),this},update:function(t,e,n){return n||(n={}),this.cleanNodesCache(),this.updateConnection(n),this.updateDOMSubtreeAttributes(this.el,this.model.attr(),{selectors:this.selectors}),this.updateDefaultConnectionPath(),this.updateLabelPositions(),this.updateToolsPosition(),this.updateArrowheadMarkers(),this.updateTools(n),this.options.perpendicular=null,this},removeRedundantLinearVertices:function(t){var e=this.model,n=e.vertices(),i=[this.sourceAnchor].concat(n,[this.targetAnchor]),r=i.length,o=new L(i);o.simplify({threshold:.001});var s=o.points.map(function(t){return t.toJSON()}),a=s.length;return r===a?0:(e.vertices(s.slice(1,a-1),t),r-a)},updateDefaultConnectionPath:function(){var t=this._V;t.connection&&t.connection.attr("d",this.getSerializedConnection()),t.connectionWrap&&t.connectionWrap.attr("d",this.getSerializedConnection()),t.markerSource&&t.markerTarget&&this._translateAndAutoOrientArrows(t.markerSource,t.markerTarget)},getEndView:function(t){switch(t){case"source":return this.sourceView||null;case"target":return this.targetView||null;default:throw new Error("dia.LinkView: type parameter required.")}},getEndAnchor:function(t){switch(t){case"source":return new z(this.sourceAnchor);case"target":return new z(this.targetAnchor);default:throw new Error("dia.LinkView: type parameter required.")}},getEndMagnet:function(t){switch(t){case"source":var e=this.sourceView;if(!e)break;return this.sourceMagnet||e.el;case"target":var n=this.targetView;if(!n)break;return this.targetMagnet||n.el;default:throw new Error("dia.LinkView: type parameter required.")}return null},updateConnection:function(t){t=t||{};var e,n,i=this.model;if(t.translateBy&&i.isRelationshipEmbeddedIn(t.translateBy)){var r=t.tx||0,o=t.ty||0;e=new L(this.route).translate(r,o).points,this._translateConnectionPoints(r,o),(n=this.path).translate(r,o)}else{var s=i.vertices(),a=this.findAnchors(s),h=this.sourceAnchor=a.source,l=this.targetAnchor=a.target;e=this.findRoute(s,t);var u=this.findConnectionPoints(e,h,l),c=this.sourcePoint=u.source,d=this.targetPoint=u.target,f=this.findMarkerPoints(e,c,d);n=this.findPath(e,f.source||c,f.target||d)}this.route=e,this.path=n,this.metrics={}},findMarkerPoints:function(t,e,n){var i,r,o=t[0],s=t[t.length-1],a=this._markerCache;return this._V.markerSource&&(a.sourceBBox=a.sourceBBox||this._V.markerSource.getBBox(),i=z(e).move(o||n,a.sourceBBox.width*this._V.markerSource.scale().sx*-1).round()),this._V.markerTarget&&(a.targetBBox=a.targetBBox||this._V.markerTarget.getBBox(),r=z(n).move(s||e,a.targetBBox.width*this._V.markerTarget.scale().sx*-1).round()),a.sourcePoint=i||e.clone(),a.targetPoint=r||n.clone(),{source:i,target:r}},findAnchorsOrdered:function(t,e,n,i){var r,o,s,a,h=this.model,l=h.get(t),u=h.get(n),c=this.getEndView(t),d=this.getEndView(n),f=this.getEndMagnet(t),p=this.getEndMagnet(n);r=c?(s=e?new z(e):d?p:new z(u),this.getAnchor(l.anchor,c,f,s,t)):new z(l),o=d?(a=new z(i||r),this.getAnchor(u.anchor,d,p,a,n)):new z(u);var g={};return g[t]=r,g[n]=o,g},findAnchors:function(t){var e=this.model,n=t[0],i=t[t.length-1];return e.target().priority&&!e.source().priority?this.findAnchorsOrdered("target",i,"source",n):this.findAnchorsOrdered("source",n,"target",i)},findConnectionPoints:function(t,e,n){var i,r,o,s,a=t[0],h=t[t.length-1],l=this.model,u=l.get("source"),c=l.get("target"),d=this.sourceView,f=this.targetView,p=this.paper.options;if(d&&!d.isNodeConnection(this.sourceMagnet)){i=this.sourceMagnet||d.el;var g=u.connectionPoint||p.defaultConnectionPoint,v=new O(a||n,e);o=this.getConnectionPoint(g,d,i,v,"source")}else o=e;if(f&&!f.isNodeConnection(this.targetMagnet)){r=this.targetMagnet||f.el;var m=c.connectionPoint||p.defaultConnectionPoint,y=new O(h||e,n);s=this.getConnectionPoint(m,f,r,y,"target")}else s=n;return{source:o,target:s}},getAnchor:function(t,e,n,i,r){var o,s=e.isNodeConnection(n),a=this.paper.options;if(t||(t=s?a.defaultLinkAnchor:a.perpendicularLinks||this.options.perpendicular?{name:"perpendicular"}:a.defaultAnchor),!t)throw new Error("Anchor required.");if("function"==typeof t)o=t;else{var h=t.name;if("function"!=typeof(o=a[s?"linkAnchorNamespace":"anchorNamespace"][h]))throw new Error("Unknown anchor: "+h)}var l=o.call(this,e,n,i,t.args||{},r,this);return l?l.round(this.decimalsRounding):new z},getConnectionPoint:function(t,e,n,i,r){var o,s,a=i.end,h=this.paper.options;if("function"==typeof h.linkConnectionPoint){var l=n===e.el?void 0:n;if(o=h.linkConnectionPoint(this,e,l,i.start,r))return o}if(!t)return a;if("function"==typeof t)s=t;else{var u=t.name;if("function"!=typeof(s=h.connectionPointNamespace[u]))throw new Error("Unknown connection point: "+u)}return(o=s.call(this,i,e,n,t.args||{},r,this))?o.round(this.decimalsRounding):a},_translateConnectionPoints:function(t,e){var n=this._markerCache;n.sourcePoint.offset(t,e),n.targetPoint.offset(t,e),this.sourcePoint.offset(t,e),this.targetPoint.offset(t,e),this.sourceAnchor.offset(t,e),this.targetAnchor.offset(t,e)},_normalizeLabelPosition:function(t){return"number"==typeof t?{distance:t,offset:null,angle:0,args:null}:t},updateLabelPositions:function(){if(!this._V.labels)return this;if(!this.path)return this;var t=this.model,e=t.get("labels")||[];if(!e.length)return this;for(var n=t._builtins.defaultLabel.position,i=t._getDefaultLabel(),r=this._normalizeLabelPosition(i.position),o=se({},n,r),s=0,a=e.length;s<a;s++){var h=e[s],l=this._normalizeLabelPosition(h.position),u=se({},o,l),c=this._getLabelTransformationMatrix(u);this._labelCache[s].setAttribute("transform",K.matrixToTransformString(c))}return this},updateToolsPosition:function(){if(!this._V.linkTools)return this;var t="",e=this.options.linkToolsOffset,n=this.getConnectionLength();if(!Number.isNaN(n)){n<this.options.shortLinkLength&&(t="scale(.5)",e/=2);var i=this.getPointAtLength(e);if(this._toolCache.attr("transform","translate("+i.x+", "+i.y+") "+t),this.options.doubleLinkTools&&n>=this.options.longLinkLength){var r=this.options.doubleLinkToolsOffset||e;i=this.getPointAtLength(n-r),this._tool2Cache.attr("transform","translate("+i.x+", "+i.y+") "+t),this._tool2Cache.attr("visibility","visible")}else this.options.doubleLinkTools&&this._tool2Cache.attr("visibility","hidden")}return this},updateArrowheadMarkers:function(){if(!this._V.markerArrowheads)return this;if("none"===C.css(this._V.markerArrowheads.node,"display"))return this;var t=this.getConnectionLength()<this.options.shortLinkLength?.5:1;return this._V.sourceArrowhead.scale(t),this._V.targetArrowhead.scale(t),this._translateAndAutoOrientArrows(this._V.sourceArrowhead,this._V.targetArrowhead),this},updateEndProperties:function(t){var e=this.model,n=this.paper,i=t+"View",r=e.get(t),o=r&&r.id;if(!o)return this[i]=null,this.updateEndMagnet(t),!0;var s=n.getModelById(o);if(!s)throw new Error("LinkView: invalid "+t+" cell.");var a=s.findView(n);return!!a&&(this[i]=a,this.updateEndMagnet(t),!0)},updateEndMagnet:function(t){var e=t+"Magnet",n=this.getEndView(t);if(n){var i=n.getMagnetFromLinkEnd(this.model.get(t));i===n.el&&(i=null),this[e]=i}else this[e]=null},_translateAndAutoOrientArrows:function(t,e){var n=Ut(this.route);t&&t.translateAndAutoOrient(this.sourcePoint,n[0]||this.targetPoint,this.paper.cells),e&&e.translateAndAutoOrient(this.targetPoint,n[n.length-1]||this.sourcePoint,this.paper.cells)},_getLabelPositionAngle:function(t){return(this.model.label(t).position||{}).angle||0},_getLabelPositionArgs:function(t){return(this.model.label(t).position||{}).args},_getDefaultLabelPositionArgs:function(){return(this.model._getDefaultLabel().position||{}).args},_mergeLabelPositionArgs:function(t,e){return null===t?null:void 0===t?null===e?null:e:se({},e,t)},addLabel:function(t,e,n,i){var r,o,s,a=0;s="number"!=typeof t?(r=t.x,o=t.y,"number"==typeof e?(a=e,n):e):(r=t,o=e,"number"==typeof n?(a=n,i):n);var h=this._getDefaultLabelPositionArgs(),l=s,u=this._mergeLabelPositionArgs(l,h),c={position:this.getLabelPosition(r,o,a,u)};return this.model.insertLabel(-1,c,s),-1},addVertex:function(t,e,n){var i="number"!=typeof t,r=i?t.x:t,o=i?t.y:e,s=i?e:n,a={x:r,y:o},h=this.getVertexIndex(r,o);return this.model.insertVertex(h,a,s),h},sendToken:function(t,e,n){var i,r,o;o=he(e)?(i=e.duration,r="reverse"===e.direction,e.connection):(i=e,r=!1,null);var s={dur:(i=i||1e3)+"ms",repeatCount:1,calcMode:"linear",fill:"freeze"};r&&(s.keyPoints="1;0",s.keyTimes="0;1");var a,h,l,u=K(t);if("string"==typeof o)a=this.findBySelector(o,this.el,this.selectors)[0];else{var c=this._V;a=c.connection?c.connection.node:this.el.querySelector("path")}if(!(a instanceof SVGPathElement))throw new Error("dia.LinkView: token animation requires a valid connection path.");u.appendTo(this.paper.cells).animateAlongPath(s,a),setTimeout((h=u,l=n,function(){h.remove(),"function"==typeof l&&l()}),i)},findRoute:function(t){t||(t=[]);var e=_i,n=this.model.router(),i=this.paper.options.defaultRouter;if(!n){if(!i)return t.map(z);n=i}var r=jt(n)?n:e[n.name];if(!jt(r))throw new Error('dia.LinkView: unknown router: "'+n.name+'".');var o=n.args||{},s=r.call(this,t,o,this);return s||t.map(z)},findPath:function(t,e,n){var i=On,r=this.model.connector(),o=this.paper.options.defaultConnector;r||(r=o||{});var s=jt(r)?r:i[r.name];if(!jt(s))throw new Error('dia.LinkView: unknown connector: "'+r.name+'".');var a=Ot(r.args||{});a.raw=!0;var h=s.call(this,e,n,t,a,this);return"string"==typeof h&&(h=new D(K.normalizePathData(h))),h},getConnection:function(){var t=this.path;return t?t.clone():null},getSerializedConnection:function(){var t=this.path;if(!t)return null;var e=this.metrics;if(e.hasOwnProperty("data"))return e.data;var n=t.serialize();return e.data=n},getConnectionSubdivisions:function(){var t=this.path;if(!t)return null;var e=this.metrics;if(e.hasOwnProperty("segmentSubdivisions"))return e.segmentSubdivisions;var n=t.getSegmentSubdivisions();return e.segmentSubdivisions=n},getConnectionLength:function(){var t=this.path;if(!t)return 0;var e=this.metrics;if(e.hasOwnProperty("length"))return e.length;var n=t.length({segmentSubdivisions:this.getConnectionSubdivisions()});return e.length=n},getPointAtLength:function(t){var e=this.path;return e?e.pointAtLength(t,{segmentSubdivisions:this.getConnectionSubdivisions()}):null},getPointAtRatio:function(t){var e=this.path;return e?(pt(t)&&(t=parseFloat(t)/100),e.pointAt(t,{segmentSubdivisions:this.getConnectionSubdivisions()})):null},getTangentAtLength:function(t){var e=this.path;return e?e.tangentAtLength(t,{segmentSubdivisions:this.getConnectionSubdivisions()}):null},getTangentAtRatio:function(t){var e=this.path;return e?e.tangentAt(t,{segmentSubdivisions:this.getConnectionSubdivisions()}):null},getClosestPoint:function(t){var e=this.path;return e?e.closestPoint(t,{segmentSubdivisions:this.getConnectionSubdivisions()}):null},getClosestPointLength:function(t){var e=this.path;return e?e.closestPointLength(t,{segmentSubdivisions:this.getConnectionSubdivisions()}):null},getClosestPointRatio:function(t){var e=this.path;return e?e.closestPointNormalizedLength(t,{segmentSubdivisions:this.getConnectionSubdivisions()}):null},getLabelPosition:function(t,e,n,i){var r,o={},s=0;(r="number"==typeof n?(s=n,i):n)&&(o.args=r);var a,h,l=!(r&&r.absoluteDistance),u=r&&r.absoluteDistance&&r.reverseDistance,c=r&&r.absoluteOffset,d=this.path,f={segmentSubdivisions:this.getConnectionSubdivisions()},p=new z(t,e),g=d.closestPointT(p,f),v=d.lengthAtT(g,f);if(l&&(v=v/this.getConnectionLength()||0),u&&(v=-1*(this.getConnectionLength()-v)||1),o.distance=v,c||(a=d.tangentAtT(g)),a)h=a.pointOffset(p);else{var m=d.pointAtT(g),y=p.difference(m);h={x:y.x,y:y.y}}return o.offset=h,o.angle=s,o},_getLabelTransformationMatrix:function(t){var e,n=0,i={};if("number"==typeof t)e=t;else{if("number"!=typeof t.distance)throw new Error("dia.LinkView: invalid label position distance.");i=t.args||{},e=t.distance,n=t.angle||0}var r=0<e&&e<=1,o=0,s={x:0,y:0};if(t.offset){var a=t.offset;"number"==typeof a&&(o=a),a.x&&(s.x=a.x),a.y&&(s.y=a.y)}var h,l=0!==s.x||0!==s.y||0===o,u=i.keepGradient,c=i.ensureLegibility,d=this.path,f={segmentSubdivisions:this.getConnectionSubdivisions()},p=r?e*this.getConnectionLength():e,g=d.tangentAtLength(p,f),v=n;if(g){if(l)(h=g.start).offset(s);else{var m=g.clone();m.rotate(g.start,-90),m.setLength(o),h=m.end}u&&(v=g.angle()+n,c&&(v=b((v+90)%180-90)))}else h=d.start,l&&h.offset(s);return K.createSVGMatrix().translate(h.x,h.y).rotate(v)},getLabelCoordinates:function(t){var e=this._getLabelTransformationMatrix(t);return new z(e.e,e.f)},getVertexIndex:function(t,e){for(var n=this.model.vertices(),i=this.getClosestPointLength(new z(t,e)),r=0,o=n.length;r<o;r++){var s=n[r];if(i<this.getClosestPointLength(s))break}return r},notifyPointerdown:function(t,e,n){We.prototype.pointerdown.call(this,t,e,n),this.notify("link:pointerdown",t,e,n)},notifyPointermove:function(t,e,n){We.prototype.pointermove.call(this,t,e,n),this.notify("link:pointermove",t,e,n)},notifyPointerup:function(t,e,n){this.notify("link:pointerup",t,e,n),We.prototype.pointerup.call(this,t,e,n)},pointerdblclick:function(t,e,n){We.prototype.pointerdblclick.apply(this,arguments),this.notify("link:pointerdblclick",t,e,n)},pointerclick:function(t,e,n){We.prototype.pointerclick.apply(this,arguments),this.notify("link:pointerclick",t,e,n)},contextmenu:function(t,e,n){We.prototype.contextmenu.apply(this,arguments),this.notify("link:contextmenu",t,e,n)},pointerdown:function(t,e,n){switch(this.notifyPointerdown(t,e,n),t.target.getAttribute("class")){case"marker-vertex":return void this.dragVertexStart(t,e,n);case"marker-vertex-remove":case"marker-vertex-remove-area":return void this.dragVertexRemoveStart(t,e,n);case"marker-arrowhead":return void this.dragArrowheadStart(t,e,n);case"connection":case"connection-wrap":return void this.dragConnectionStart(t,e,n);case"marker-source":case"marker-target":return}this.dragStart(t,e,n)},pointermove:function(t,e,n){var i=this._dragData;switch(i&&this.eventData(t,i),this.eventData(t).action){case"vertex-move":this.dragVertex(t,e,n);break;case"label-move":this.dragLabel(t,e,n);break;case"arrowhead-move":this.dragArrowhead(t,e,n);break;case"move":this.drag(t,e,n)}i&&Nt(i,this.eventData(t)),this.notifyPointermove(t,e,n)},pointerup:function(t,e,n){var i=this._dragData;switch(i&&(this.eventData(t,i),this._dragData=null),this.eventData(t).action){case"vertex-move":this.dragVertexEnd(t,e,n);break;case"label-move":this.dragLabelEnd(t,e,n);break;case"arrowhead-move":this.dragArrowheadEnd(t,e,n);break;case"move":this.dragEnd(t,e,n)}this.notifyPointerup(t,e,n),this.checkMouseleave(t)},mouseover:function(t){We.prototype.mouseover.apply(this,arguments),this.notify("link:mouseover",t)},mouseout:function(t){We.prototype.mouseout.apply(this,arguments),this.notify("link:mouseout",t)},mouseenter:function(t){We.prototype.mouseenter.apply(this,arguments),this.notify("link:mouseenter",t)},mouseleave:function(t){We.prototype.mouseleave.apply(this,arguments),this.notify("link:mouseleave",t)},mousewheel:function(t,e,n,i){We.prototype.mousewheel.apply(this,arguments),this.notify("link:mousewheel",t,e,n,i)},onevent:function(t,e,n,i){if(K(t.target).findParentByClass("link-tool",this.el)){if(t.stopPropagation(),this.can("useLinkTools")){if("remove"===e)return void this.model.remove({ui:!0});this.notify(e,t,n,i)}this.notifyPointerdown(t,n,i)}else We.prototype.onevent.apply(this,arguments)},onlabel:function(t,e,n){this.notifyPointerdown(t,e,n),this.dragLabelStart(t,e,n),this.eventData(t).stopPropagation&&t.stopPropagation()},dragConnectionStart:function(t,e,n){if(this.can("vertexAdd")){var i=this.addVertex({x:e,y:n},{ui:!0});this.eventData(t,{action:"vertex-move",vertexIdx:i})}},dragLabelStart:function(t,e,n){if(this.can("labelMove")){var i=t.currentTarget,r=parseInt(i.getAttribute("label-idx"),10),o=this._getLabelPositionAngle(r),s=this._getLabelPositionArgs(r),a=this._getDefaultLabelPositionArgs(),h=this._mergeLabelPositionArgs(s,a);this.eventData(t,{action:"label-move",labelIdx:r,positionAngle:o,positionArgs:h,stopPropagation:!0})}else this.eventData(t,{stopPropagation:!0});this.paper.delegateDragEvents(this,t.data)},dragVertexStart:function(t,e,n){if(this.can("vertexMove")){var i=t.target,r=parseInt(i.getAttribute("idx"),10);this.eventData(t,{action:"vertex-move",vertexIdx:r})}},dragVertexRemoveStart:function(t,e,n){if(this.can("vertexRemove")){var i=t.target,r=parseInt(i.getAttribute("idx"),10);this.model.removeVertex(r)}},dragArrowheadStart:function(t,e,n){if(this.can("arrowheadMove")){var i=t.target.getAttribute("end"),r=this.startArrowheadMove(i,{ignoreBackwardsCompatibility:!0});this.eventData(t,r)}},dragStart:function(t,e,n){this.can("linkMove")&&this.eventData(t,{action:"move",dx:e,dy:n})},dragLabel:function(t,e,n){var i=this.eventData(t),r={position:this.getLabelPosition(e,n,i.positionAngle,i.positionArgs)};this.model.label(i.labelIdx,r)},dragVertex:function(t,e,n){var i=this.eventData(t);this.model.vertex(i.vertexIdx,{x:e,y:n},{ui:!0})},dragArrowhead:function(t,e,n){var i=this.eventData(t);this.paper.options.snapLinks?this._snapArrowhead(e,n,i):this._connectArrowhead(this.getEventTarget(t),e,n,i)},drag:function(t,e,n){var i=this.eventData(t);this.model.translate(e-i.dx,n-i.dy,{ui:!0}),this.eventData(t,{dx:e,dy:n})},dragLabelEnd:function(){},dragVertexEnd:function(){},dragArrowheadEnd:function(t,e,n){var i=this.eventData(t),r=this.paper;r.options.snapLinks?this._snapArrowheadEnd(i):this._connectArrowheadEnd(i,e,n),r.linkAllowed(this)?(this._finishEmbedding(i),this._notifyConnectEvent(i,t)):this._disallow(i),this._afterArrowheadMove(i)},dragEnd:function(){},_disallow:function(t){switch(t.whenNotAllowed){case"remove":this.model.remove({ui:!0});break;case"revert":default:this.model.set(t.arrowhead,t.initialEnd,{ui:!0})}},_finishEmbedding:function(t){this.paper.options.embeddingMode&&this.model.reparent()&&(t.z=null)},_notifyConnectEvent:function(t,e){var n=t.arrowhead,i=t.initialEnd,r=this.model.prop(n);if(r&&!pn.endsEqual(i,r)){var o=this.paper;i.id&&this.notify("link:disconnect",e,o.findViewByModel(i.id),t.initialMagnet,n),r.id&&this.notify("link:connect",e,o.findViewByModel(r.id),t.magnetUnderPointer,n)}},_snapArrowhead:function(t,e,r){var o,s=this.paper.options.snapLinks.radius||50,n=this.paper.findViewsInArea({x:t-s,y:e-s,width:2*s,height:2*s}),i=r.closestView||null,a=r.closestMagnet||null;r.closestView=r.closestMagnet=null;var h,l=Number.MAX_VALUE,u=z(t,e),c=this.paper;n.forEach(function(i){"false"!==i.el.getAttribute("magnet")&&(o=i.model.getBBox().center().distance(u))<s&&o<l&&(a===i.el||c.options.validateConnection.apply(c,r.validateConnectionArgs(i,null)))&&(l=o,r.closestView=i,r.closestMagnet=i.el),i.$("[magnet]").each(function(t,e){var n=i.getNodeBBox(e);(o=u.distance({x:n.x+n.width/2,y:n.y+n.height/2}))<s&&o<l&&(a===e||c.options.validateConnection.apply(c,r.validateConnectionArgs(i,e)))&&(l=o,r.closestView=i,r.closestMagnet=e)}.bind(this))},this);var d=r.closestView,f=r.closestMagnet,p=r.arrowhead,g=a!==f;if(i&&g&&i.unhighlight(a,{connecting:!0,snapping:!0}),d){if(!g)return;d.highlight(f,{connecting:!0,snapping:!0}),h=d.getLinkEnd(f,t,e,this.model,p)}else h={x:t,y:e};this.model.set(p,h||{x:t,y:e},{ui:!0})},_snapArrowheadEnd:function(t){var e=t.closestView,n=t.closestMagnet;e&&n&&(e.unhighlight(n,{connecting:!0,snapping:!0}),t.magnetUnderPointer=e.findMagnet(n)),t.closestView=t.closestMagnet=null},_connectArrowhead:function(t,e,n,i){i.eventTarget!==t&&(i.magnetUnderPointer&&i.viewUnderPointer.unhighlight(i.magnetUnderPointer,{connecting:!0}),i.viewUnderPointer=this.paper.findView(t),i.viewUnderPointer?(i.magnetUnderPointer=i.viewUnderPointer.findMagnet(t),i.magnetUnderPointer&&this.paper.options.validateConnection.apply(this.paper,i.validateConnectionArgs(i.viewUnderPointer,i.magnetUnderPointer))?i.magnetUnderPointer&&i.viewUnderPointer.highlight(i.magnetUnderPointer,{connecting:!0}):i.magnetUnderPointer=null):i.magnetUnderPointer=null),i.eventTarget=t,this.model.set(i.arrowhead,{x:e,y:n},{ui:!0})},_connectArrowheadEnd:function(t,e,n){var i=t.viewUnderPointer,r=t.magnetUnderPointer;if(r&&i){i.unhighlight(r,{connecting:!0});var o=t.arrowhead,s=i.getLinkEnd(r,e,n,this.model,o);this.model.set(o,s,{ui:!0})}},_beforeArrowheadMove:function(t){t.z=this.model.get("z"),this.model.toFront();var e=this.el.style;t.pointerEvents=e.pointerEvents,e.pointerEvents="none",this.paper.options.markAvailable&&this._markAvailableMagnets(t)},_afterArrowheadMove:function(t){null!==t.z&&(this.model.set("z",t.z,{ui:!0}),t.z=null),this.el.style.pointerEvents=t.pointerEvents,this.paper.options.markAvailable&&this._unmarkAvailableMagnets(t)},_createValidateConnectionArgs:function(t){var e,n=[];n[4]=t,n[5]=this;var i=0,r=0;e="source"===t?(i=2,"target"):(r=2,"source");var o=this.model.get(e);if(o.id){var s=n[i]=this.paper.findViewByModel(o.id),a=s.getMagnetFromLinkEnd(o);a===s.el&&(a=void 0),n[i+1]=a}return function(t,e){return n[r]=t,n[r+1]=t.el===e?void 0:e,n}},_markAvailableMagnets:function(t){function e(t,e){var n=t.paper;return n.options.validateConnection.apply(n,this.validateConnectionArgs(t,e))}var n=this.paper,i=n.model.getCells();t.marked={};for(var r=0,o=i.length;r<o;r++){var s=i[r].findView(n);if(s){var a=Array.prototype.slice.call(s.el.querySelectorAll("[magnet]"));"false"!==s.el.getAttribute("magnet")&&a.push(s.el);var h=a.filter(e.bind(t,s));if(0<h.length){for(var l=0,u=h.length;l<u;l++)s.highlight(h[l],{magnetAvailability:!0});s.highlight(null,{elementAvailability:!0}),t.marked[s.model.id]=h}}}},_unmarkAvailableMagnets:function(t){for(var e,n,i=Object.keys(t.marked),r=0,o=i.length;r<o;r++){e=i[r],n=t.marked[e];var s=this.paper.findViewByModel(e);if(s){for(var a=0,h=n.length;a<h;a++)s.unhighlight(n[a],{magnetAvailability:!0});s.unhighlight(null,{elementAvailability:!0})}}t.marked=null},startArrowheadMove:function(t,e){e||(e={});var n={action:"arrowhead-move",arrowhead:t,whenNotAllowed:e.whenNotAllowed||"revert",initialMagnet:this[t+"Magnet"]||(this[t+"View"]?this[t+"View"].el:null),initialEnd:Ot(this.model.get(t)),validateConnectionArgs:this._createValidateConnectionArgs(t)};return this._beforeArrowheadMove(n),!0!==e.ignoreBackwardsCompatibility&&(this._dragData=n),n}});Object.defineProperty(qi.prototype,"sourceBBox",{enumerable:!0,get:function(){var t=this.sourceView;if(!t){var e=this.model.source();return new X(e.x,e.y)}var n=this.sourceMagnet;return t.isNodeConnection(n)?new X(this.sourceAnchor):t.getNodeBBox(n||t.el)}}),Object.defineProperty(qi.prototype,"targetBBox",{enumerable:!0,get:function(){var t=this.targetView;if(!t){var e=this.model.target();return new X(e.x,e.y)}var n=this.targetMagnet;return t.isNodeConnection(n)?new X(this.targetAnchor):t.getNodeBBox(n||t.el)}});var Hi={NONE:"sorting-none",APPROX:"sorting-approximate",EXACT:"sorting-exact"},$i=1<<30,Yi=1<<29,Xi=Ye.extend({className:"paper",options:{width:800,height:600,origin:{x:0,y:0},gridSize:1,drawGrid:!1,background:!1,perpendicularLinks:!1,elementView:Ze,linkView:qi,snapLinks:!1,multiLinks:!0,guard:function(t,e){return!1},highlighting:{default:{name:"stroke",options:{padding:3}},magnetAvailability:{name:"addClass",options:{className:"available-magnet"}},elementAvailability:{name:"addClass",options:{className:"available-cell"}}},preventContextMenu:!0,preventDefaultBlankAction:!0,restrictTranslate:!1,markAvailable:!1,defaultLink:new pn,defaultConnector:{name:"normal"},defaultRouter:{name:"normal"},defaultAnchor:{name:"center"},defaultLinkAnchor:{name:"connectionRatio"},defaultConnectionPoint:{name:"bbox"},connectionStrategy:null,validateMagnet:function(t,e,n){return"passive"!==e.getAttribute("magnet")},validateConnection:function(t,e,n,i,r,o){return("target"===r?n:t)instanceof Ze},embeddingMode:!1,validateEmbedding:function(t,e){return!0},findParentBy:"bbox",frontParentOnly:!0,interactive:{labelMove:!1},linkPinning:!0,allowLink:null,clickThreshold:0,moveThreshold:0,magnetThreshold:0,sorting:Hi.EXACT,frozen:!1,onViewUpdate:function(t,e,n,i){e&$i||n.mounting||i.requestConnectedLinksUpdate(t,n)},onViewPostponed:function(t,e){return this.forcePostponedViewUpdate(t,e)},viewport:null,cellViewNamespace:null,highlighterNamespace:Dn,anchorNamespace:ji,linkAnchorNamespace:zi,connectionPointNamespace:qn},events:{dblclick:"pointerdblclick",contextmenu:"contextmenu",mousedown:"pointerdown",touchstart:"pointerdown",mouseover:"mouseover",mouseout:"mouseout",mouseenter:"mouseenter",mouseleave:"mouseleave",mousewheel:"mousewheel",DOMMouseScroll:"mousewheel","mouseenter .joint-cell":"mouseenter","mouseleave .joint-cell":"mouseleave","mouseenter .joint-tools":"mouseenter","mouseleave .joint-tools":"mouseleave","mousedown .joint-cell [event]":"onevent","touchstart .joint-cell [event]":"onevent","mousedown .joint-cell [magnet]":"onmagnet","touchstart .joint-cell [magnet]":"onmagnet","dblclick .joint-cell [magnet]":"magnetpointerdblclick","contextmenu .joint-cell [magnet]":"magnetcontextmenu","mousedown .joint-link .label":"onlabel","touchstart .joint-link .label":"onlabel","dragstart .joint-cell image":"onImageDragStart"},documentEvents:{mousemove:"pointermove",touchmove:"pointermove",mouseup:"pointerup",touchend:"pointerup",touchcancel:"pointerup"},svg:null,viewport:null,defs:null,tools:null,$background:null,layers:null,$grid:null,$document:null,_highlights:null,_zPivots:null,_viewportMatrix:null,_viewportTransformString:null,_updates:null,SORT_DELAYING_BATCHES:["add","to-front","to-back"],UPDATE_DELAYING_BATCHES:["translate"],MIN_SCALE:1e-6,init:function(){var t=this.options,e=this.el;t.cellViewNamespace||(t.cellViewNamespace="undefined"!=typeof joint&&Kt(joint,"shapes")?joint.shapes:null);var n=this.model=t.model||new Ui;this.setGrid(t.drawGrid),this.cloneOptions(),this.render(),this.setDimensions(),this.startListening(),this._views={},this._zPivots={},this.$document=C(e.ownerDocument),this._highlights={},this.resetViews(n.attributes.cells.models),!this.isFrozen()&&this.isAsync()&&this.updateViewsAsync()},_resetUpdates:function(){return this._updates={id:null,priorities:[{},{},{}],unmountedCids:[],mountedCids:[],unmounted:{},mounted:{},count:0,keyFrozen:!1,freezeKey:null,sort:!1}},startListening:function(){var t=this.model;this.listenTo(t,"add",this.onCellAdded).listenTo(t,"remove",this.onCellRemoved).listenTo(t,"change",this.onCellChange).listenTo(t,"reset",this.onGraphReset).listenTo(t,"sort",this.onGraphSort).listenTo(t,"batch:stop",this.onGraphBatchStop),this.on("cell:highlight",this.onCellHighlight).on("cell:unhighlight",this.onCellUnhighlight).on("scale translate",this.update)},onCellAdded:function(t,e,n){var i=n.position;this.isAsync()||!le(i)?this.renderView(t,n):(n.maxPosition===i&&this.freeze({key:"addCells"}),this.renderView(t,n),0===i&&this.unfreeze({key:"addCells"}))},onCellRemoved:function(t,e,n){var i=this.findViewByModel(t);i&&this.requestViewUpdate(i,Yi,i.UPDATE_PRIORITY,n)},onCellChange:function(t,e){if(t!==this.model.attributes.cells&&t.hasChanged("z")&&this.options.sorting===Hi.APPROX){var n=this.findViewByModel(t);n&&this.requestViewUpdate(n,$i,n.UPDATE_PRIORITY,e)}},onGraphReset:function(t,e){this.removeZPivots(),this.resetViews(t.models,e)},onGraphSort:function(){this.model.hasActiveBatch(this.SORT_DELAYING_BATCHES)||this.sortViews()},onGraphBatchStop:function(t){if(!this.isFrozen()){var e=t&&t.batchName,n=this.model;if(!this.isAsync()){var i=this.UPDATE_DELAYING_BATCHES;i.includes(e)&&!n.hasActiveBatch(i)&&this.updateViews(t)}var r=this.SORT_DELAYING_BATCHES;r.includes(e)&&!n.hasActiveBatch(r)&&this.sortViews()}},cloneOptions:function(){var t=this.options;t.origin=Nt({},t.origin),t.defaultConnector=Nt({},t.defaultConnector),t.highlighting=Ft({},t.highlighting,this.constructor.prototype.options.highlighting),!t.cellViewNamespace&&"undefined"!=typeof joint&&Kt(joint,"shapes")&&(t.cellViewNamespace=joint.shapes)},children:function(){var t=K.namespace;return[{namespaceURI:t.xhtml,tagName:"div",className:tt("paper-background"),selector:"background"},{namespaceURI:t.xhtml,tagName:"div",className:tt("paper-grid"),selector:"grid"},{namespaceURI:t.svg,tagName:"svg",attributes:{width:"100%",height:"100%","xmlns:xlink":t.xlink},selector:"svg",children:[{tagName:"defs",selector:"defs"},{tagName:"g",className:tt("layers"),selector:"layers",children:[{tagName:"g",className:tt("cells-layer viewport"),selector:"cells"},{tagName:"g",className:tt("tools-layer"),selector:"tools"}]}]}]},render:function(){this.renderChildren();var t=this.childNodes,e=this.options,n=t.svg,i=t.cells,r=t.defs,o=t.tools,s=t.layers,a=t.background,h=t.grid;return this.svg=n,this.defs=r,this.tools=o,this.cells=i,this.layers=s,this.$background=C(a),this.$grid=C(h),K.ensureId(n),this.viewport=i,e.background&&this.drawBackground(e.background),e.drawGrid&&this.drawGrid(),this},update:function(){return this.options.drawGrid&&this.drawGrid(),this._background&&this.updateBackgroundImage(this._background),this},matrix:function(t){var e=this.layers;if(void 0===t){var n=e.getAttribute("transform");return(this._viewportTransformString||null)===n?t=this._viewportMatrix:(t=e.getCTM(),this._viewportMatrix=t,this._viewportTransformString=n),K.createSVGMatrix(t)}t=K.createSVGMatrix(t);var i=K.matrixToTransformString(t);return e.setAttribute("transform",i),this._viewportMatrix=t,this._viewportTransformString=e.getAttribute("transform"),this},clientMatrix:function(){return K.createSVGMatrix(this.cells.getScreenCTM())},requestConnectedLinksUpdate:function(t,e){if(t instanceof We)for(var n=t.model,i=this.model.getConnectedLinks(n),r=0,o=i.length;r<o;r++){var s=i[r],a=this.findViewByModel(s);if(a){var h=["UPDATE"];s.getTargetCell()===n&&h.push("TARGET"),s.getSourceCell()===n&&h.push("SOURCE"),this.scheduleViewUpdate(a,a.getFlag(h),a.UPDATE_PRIORITY,e)}}},forcePostponedViewUpdate:function(t,e){if(!(t&&t instanceof We))return!1;var n=t.model;if(n.isElement())return!1;if(0==(e&t.getFlag(["SOURCE","TARGET"]))){var i=0,r=this.findViewByModel(n.getSourceCell());r&&!this.isViewMounted(r)&&(i=this.dumpView(r),t.updateEndMagnet("source"));var o=0,s=this.findViewByModel(n.getTargetCell());if(s&&!this.isViewMounted(s)&&(o=this.dumpView(s),t.updateEndMagnet("target")),0===i&&0===o)return!!this.dumpView(t)}return!1},requestViewUpdate:function(t,e,n,i){i||(i={}),this.scheduleViewUpdate(t,e,n,i);var r=this.isAsync();if(!(this.isFrozen()||r&&!1!==i.async||this.model.hasActiveBatch(this.UPDATE_DELAYING_BATCHES))){var o=this.updateViews(i);r&&this.trigger("render:done",o,i)}},scheduleViewUpdate:function(t,e,n,i){var r=this._updates,o=r.priorities[n];o||(o=r.priorities[n]={});var s=o[t.cid]||0;if((s&e)!==e){s||r.count++,e&Yi&&s&$i?o[t.cid]^=$i:e&$i&&s&Yi&&(o[t.cid]^=Yi),o[t.cid]|=e;var a=this.options.onViewUpdate;"function"==typeof a&&a.call(this,t,e,i||{},this)}},dumpViewUpdate:function(t){if(!t)return 0;var e=this._updates,n=t.cid,i=e.priorities[t.UPDATE_PRIORITY],r=this.registerMountedView(t)|i[n];return delete i[n],r},dumpView:function(t,e){var n=this.dumpViewUpdate(t);return n?this.updateView(t,n,e):0},updateView:function(t,e,n){if(!t)return 0;if(t instanceof We){if(e&Yi)return this.removeView(t.model),0;e&$i&&(this.insertView(t),e^=$i)}return e?t.confirmUpdate(e,n||{}):0},requireView:function(t,e){var n=this.findViewByModel(t);return n?(this.dumpView(n,e),n):null},registerUnmountedView:function(t){var e=t.cid,n=this._updates;if(e in n.unmounted)return 0;var i=n.unmounted[e]|=$i;return n.unmountedCids.push(e),delete n.mounted[e],i},registerMountedView:function(t){var e=t.cid,n=this._updates;if(e in n.mounted)return 0;n.mounted[e]=!0,n.mountedCids.push(e);var i=n.unmounted[e]||0;return delete n.unmounted[e],i},isViewMounted:function(t){return!!t&&t.cid in this._updates.mounted},dumpViews:function(t){var e=Vt({},t,{viewport:null});this.checkViewport(e),this.updateViews(e)},updateViews:function(t){for(var e,n=0,i=0,r=2;i++,n+=(e=this.updateViewsBatch(t)).updated,r=Math.min(e.priority,r),!e.empty;);return{updated:n,batches:i,priority:r}},updateViewsAsync:function(t,e){t||(t={}),e||(e={processed:0,priority:2});var n=this._updates,i=n.id;if(i){ft(i);var r=this.updateViewsBatch(t),o=Vt({},t,{mountBatchSize:1e3-r.mounted,unmountBatchSize:1e3-r.unmounted}),s=this.checkViewport(o),a=s.unmounted,h=s.mounted,l=e.processed,u=n.count;0<r.updated&&(l+=r.updated+r.unmounted,r.processed=l,e.priority=Math.min(r.priority,e.priority),r.empty&&0===h?(r.unmounted+=a,r.mounted+=h,r.priority=e.priority,this.trigger("render:done",r,t),e.processed=0,n.count=0):e.processed=l);var c=t.progress;if(u&&"function"==typeof c&&c.call(this,r.empty,l,u,r,this),n.id!==i)return}n.id=dt(this.updateViewsAsync,this,t,e)},updateViewsBatch:function(t){t||(t={});var e=t.batchSize||1/0,n=this._updates,i=0,r=0,o=0,s=0,a=2,h=!0,l=this.options,u=n.priorities,c="viewport"in t?t.viewport:l.viewport;"function"!=typeof c&&(c=null);var d=l.onViewPostponed;"function"!=typeof d&&(d=null);t:for(var f=0,p=u.length;f<p;f++){var g=u[f];for(var v in g){if(e<=i){h=!1;break t}var m=$e[v];if(m){var y=g[v];if(0==(y&Yi)){var w=v in n.unmounted;if(c&&!c.call(this,m,w,this)){w||(this.registerUnmountedView(m),m.unmount()),n.unmounted[v]|=y,delete g[v],o++;continue}w&&(y|=$i,s++),y|=this.registerMountedView(m)}var b=this.updateView(m,y,t);0<b&&(g[v]=b,!d||!d.call(this,m,b,this)||g[v])?(r++,h=!1):(f<a&&(a=f),i++,delete g[v])}else delete g[v]}}return{priority:a,updated:i,postponed:r,unmounted:o,mounted:s,empty:h}},getUnmountedViews:function(){for(var t=this._updates,e=Object.keys(t.unmounted),n=e.length,i=new Array(n),r=0;r<n;r++)i[r]=$e[e[r]];return i},getMountedViews:function(){for(var t=this._updates,e=Object.keys(t.mounted),n=e.length,i=new Array(n),r=0;r<n;r++)i[r]=$e[e[r]];return i},checkUnmountedViews:function(t,e){e||(e={});var n=0;"function"!=typeof t&&(t=null);for(var i=("mountBatchSize"in e?e.mountBatchSize:1/0),r=this._updates,o=r.unmountedCids,s=r.unmounted,a=0,h=Math.min(o.length,i);a<h;a++){var l=o[a];if(l in s){var u=$e[l];if(u)if(!t||t.call(this,u,!1,this)){n++;var c=this.registerMountedView(u);c&&this.scheduleViewUpdate(u,c,u.UPDATE_PRIORITY,{mounting:!0})}else o.push(l)}}return o.splice(0,a),n},checkMountedViews:function(t,e){e||(e={});var n=0;if("function"!=typeof t)return n;for(var i=("unmountBatchSize"in e?e.unmountBatchSize:1/0),r=this._updates,o=r.mountedCids,s=r.mounted,a=0,h=Math.min(o.length,i);a<h;a++){var l=o[a];if(l in s){var u=$e[l];if(u)if(t.call(this,u,!0,this))o.push(l);else n++,this.registerUnmountedView(u)&&u.unmount()}}return o.splice(0,a),n},checkViewport:function(t){var e=Vt({},t,{mountBatchSize:1/0,unmountBatchSize:1/0}),n="viewport"in e?e.viewport:this.options.viewport,i=this.checkMountedViews(n,e);if(0<i){var r=this._updates.unmountedCids;e.mountBatchSize=Math.min(r.length-i,e.mountBatchSize)}return{mounted:this.checkUnmountedViews(n,e),unmounted:i}},freeze:function(t){t||(t={});var e=this._updates,n=t.key,i=this.options.frozen,r=e.freezeKey;if(n&&n!==r){if(i&&r)return;e.freezeKey=n,e.keyFrozen=i}this.options.frozen=!0;var o=e.id;e.id=null,this.isAsync()&&o&&ft(o)},unfreeze:function(t){t||(t={});var e=this._updates,n=t.key,i=e.freezeKey;n&&i&&n!==i||(e.freezeKey=null,n&&n===i&&e.keyFrozen||(this.isAsync()?(this.freeze(),this.updateViewsAsync(t)):this.updateViews(t),this.options.frozen=e.keyFrozen=!1,e.sort&&(this.sortViews(),e.sort=!1)))},isAsync:function(){return!!this.options.async},isFrozen:function(){return!!this.options.frozen},isExactSorting:function(){return this.options.sorting===Hi.EXACT},onRemove:function(){this.freeze(),this.removeViews()},getComputedSize:function(){var t=this.options,e=t.width,n=t.height;return le(e)||(e=this.el.clientWidth),le(n)||(n=this.el.clientHeight),{width:e,height:n}},setDimensions:function(t,e){var n=this.options,i=void 0===t?n.width:t,r=void 0===e?n.height:e;this.options.width=i,this.options.height=r,le(i)&&(i=Math.round(i)),le(r)&&(r=Math.round(r)),this.$el.css({width:null===i?"":i,height:null===r?"":r});var o=this.getComputedSize();this.trigger("resize",o.width,o.height)},setOrigin:function(t,e){return this.translate(t||0,e||0,{absolute:!0})},fitToContent:function(t,e,n,i){n=he(t)?(t=(i=t).gridWidth||1,e=i.gridHeight||1,i.padding||0):(i||(i={}),t=t||1,e=e||1,n||0),n=xt(n);var r="contentArea"in i?new X(i.contentArea):this.getContentArea(i),o=this.scale(),s=this.translate(),a=o.sx,h=o.sy;r.x*=a,r.y*=h,r.width*=a,r.height*=h;var l=Math.max(Math.ceil((r.width+r.x)/t),1)*t,u=Math.max(Math.ceil((r.height+r.y)/e),1)*e,c=0,d=0;("negative"==i.allowNewOrigin&&r.x<0||"positive"==i.allowNewOrigin&&0<=r.x||"any"==i.allowNewOrigin)&&(c=Math.ceil(-r.x/t)*t,l+=c+=n.left),("negative"==i.allowNewOrigin&&r.y<0||"positive"==i.allowNewOrigin&&0<=r.y||"any"==i.allowNewOrigin)&&(d=Math.ceil(-r.y/e)*e,u+=d+=n.top),l+=n.right,u+=n.bottom,l=Math.max(l,i.minWidth||0),u=Math.max(u,i.minHeight||0),l=Math.min(l,i.maxWidth||Number.MAX_VALUE),u=Math.min(u,i.maxHeight||Number.MAX_VALUE);var f=this.getComputedSize(),p=l!=f.width||u!=f.height;return(c!=s.tx||d!=s.ty)&&this.translate(c,d),p&&this.setDimensions(l,u),new X(-c/a,-d/h,l/a,u/h)},scaleContentToFit:function(t){var e,n;if(t||(t={}),"contentArea"in t){var i=t.contentArea;e=this.localToPaperRect(i),n=new z(i)}else e=this.getContentBBox(t),n=this.paperToLocalPoint(e);if(e.width&&e.height){Vt(t,{padding:0,preserveAspectRatio:!0,scaleGrid:null,minScale:0,maxScale:Number.MAX_VALUE});var r,o=t.padding,s=t.minScaleX||t.minScale,a=t.maxScaleX||t.maxScale,h=t.minScaleY||t.minScale,l=t.maxScaleY||t.maxScale;if(t.fittingBBox)r=t.fittingBBox;else{var u=this.translate(),c=this.getComputedSize();r={x:u.tx,y:u.ty,width:c.width,height:c.height}}r=new X(r).inflate(-o);var d=this.scale(),f=r.width/e.width*d.sx,p=r.height/e.height*d.sy;if(t.preserveAspectRatio&&(f=p=Math.min(f,p)),t.scaleGrid){var g=t.scaleGrid;f=g*Math.floor(f/g),p=g*Math.floor(p/g)}f=Math.min(a,Math.max(s,f)),p=Math.min(l,Math.max(h,p));var v=this.options.origin,m=r.x-n.x*f-v.x,y=r.y-n.y*p-v.y;this.scale(f,p),this.translate(m,y)}},getContentArea:function(t){return t&&t.useModelGeometry?this.model.getBBox()||new X:K(this.cells).getBBox()},getContentBBox:function(t){return this.localToPaperRect(this.getContentArea(t))},getArea:function(){return this.paperToLocalRect(this.getComputedSize())},getRestrictedArea:function(){return jt(this.options.restrictTranslate)?this.options.restrictTranslate.apply(this,arguments):!0===this.options.restrictTranslate?this.getArea():this.options.restrictTranslate||null},createViewForModel:function(t){var e,n,i=this.options.cellViewNamespace,r=t.get("type")+"View",o=rt(i,r,".");return n=t.isLink()?(e=this.options.linkView,qi):(e=this.options.elementView,Ze),new(e.prototype instanceof s.View?o||e:e.call(this,t)||o||n)({model:t,interactive:this.options.interactive})},removeView:function(t){var e=t.id,n=this._views,i=this._updates,r=n[e];if(r){var o=r.cid,s=i.mounted,a=i.unmounted;r.remove(),delete n[e],delete s[o],delete a[o]}return r},renderView:function(t,e){var n,i,r=t.id,o=this._views;return i=r in o?(n=o[r],$i):((n=o[t.id]=this.createViewForModel(t)).paper=this).registerUnmountedView(n)|n.getFlag(n.initFlag),this.requestViewUpdate(n,i,n.UPDATE_PRIORITY,e),n},onImageDragStart:function(){return!1},resetViews:function(t,e){e||(e={}),t||(t=[]),this._resetUpdates(),this.removeViews(),this.freeze({key:"reset"});for(var n=0,i=t.length;n<i;n++)this.renderView(t[n],e);this.unfreeze({key:"reset"}),this.sortViews()},removeViews:function(){_t(this._views,"remove"),this._views={}},sortViews:function(){this.isExactSorting()&&(this.isFrozen()?this._updates.sort=!0:this.sortViewsExact())},sortViewsExact:function(){var t=C(this.cells).children("[model-id]"),s=this.model.get("cells");bt(t,function(t,e){var n=s.get(t.getAttribute("model-id")),i=s.get(e.getAttribute("model-id")),r=n.attributes.z||0,o=i.attributes.z||0;return r===o?0:r<o?-1:1})},insertView:function(t){var e=this.cells;switch(this.options.sorting){case Hi.APPROX:var n=t.model.get("z"),i=this.addZPivot(n);e.insertBefore(t.el,i);break;case Hi.EXACT:default:e.appendChild(t.el)}},addZPivot:function(t){(t=+t)||(t=0);var e=this._zPivots,n=e[t];if(n)return n;n=e[t]=document.createComment("z-index:"+(t+1));var i=-1/0;for(var r in e)(r=+r)<t&&i<r&&(i=r);var o=this.cells;if(i!==-1/0){var s=e[i];o.insertBefore(n,s.nextSibling)}else o.insertBefore(n,o.firstChild);return n},removeZPivots:function(){var t=this._zPivots,e=this.viewport;for(var n in t)e.removeChild(t[n]);this._zPivots={}},scale:function(t,e,n,i){if(void 0===t)return K.matrixToScale(this.matrix());void 0===e&&(e=t),void 0===n&&(i=n=0);var r=this.translate();if(n||i||r.tx||r.ty){var o=r.tx-n*(t-1),s=r.ty-i*(e-1);this.translate(o,s)}t=Math.max(t||0,this.MIN_SCALE),e=Math.max(e||0,this.MIN_SCALE);var a=this.matrix();return a.a=t,a.d=e,this.matrix(a),this.trigger("scale",t,e,n,i),this},rotate:function(t,e,n){if(void 0===t)return K.matrixToRotate(this.matrix());if(void 0===e){var i=this.cells.getBBox();e=i.width/2,n=i.height/2}var r=this.matrix().translate(e,n).rotate(t).translate(-e,-n);return this.matrix(r),this},translate:function(t,e){if(void 0===t)return K.matrixToTranslate(this.matrix());var n=this.matrix();n.e=t||0,n.f=e||0,this.matrix(n);var i=this.translate(),r=this.options.origin;return r.x=i.tx,r.y=i.ty,this.trigger("translate",i.tx,i.ty),this.options.drawGrid&&this.drawGrid(),this},findView:function(t){var e=ue(t)?this.cells.querySelector(t):t instanceof C?t[0]:t,n=this.findAttribute("model-id",e);if(n)return this._views[n]},findViewByModel:function(t){var e=ue(t)||le(t)?t:t&&t.id;return this._views[e]},findViewsFromPoint:function(e){return e=new z(e),this.model.getElements().map(this.findViewByModel,this).filter(function(t){return t&&t.vel.getBBox({target:this.cells}).containsPoint(e)},this)},findViewsInArea:function(e,t){t=Vt(t||{},{strict:!1}),e=new X(e);var n=this.model.getElements().map(this.findViewByModel,this),i=t.strict?"containsRect":"intersect";return n.filter(function(t){return t&&e[i](t.vel.getBBox({target:this.cells}))},this)},removeTools:function(){return this.dispatchToolsEvent("remove"),this},hideTools:function(){return this.dispatchToolsEvent("hide"),this},showTools:function(){return this.dispatchToolsEvent("show"),this},dispatchToolsEvent:function(t){for(var e,n=[],i=arguments.length-1;0<i--;)n[i]=arguments[i+1];"string"==typeof t&&(e=this).trigger.apply(e,["tools:event",t].concat(n))},getModelById:function(t){return this.model.getCell(t)},snapToGrid:function(t,e){return this.clientToLocalPoint(t,e).snapToGrid(this.options.gridSize)},localToPaperPoint:function(t,e){var n=new z(t,e);return K.transformPoint(n,this.matrix())},localToPaperRect:function(t,e,n,i){var r=new X(t,e,n,i);return K.transformRect(r,this.matrix())},paperToLocalPoint:function(t,e){var n=new z(t,e);return K.transformPoint(n,this.matrix().inverse())},paperToLocalRect:function(t,e,n,i){var r=new X(t,e,n,i);return K.transformRect(r,this.matrix().inverse())},localToClientPoint:function(t,e){var n=new z(t,e);return K.transformPoint(n,this.clientMatrix())},localToClientRect:function(t,e,n,i){var r=new X(t,e,n,i);return K.transformRect(r,this.clientMatrix())},clientToLocalPoint:function(t,e){var n=new z(t,e);return K.transformPoint(n,this.clientMatrix().inverse())},clientToLocalRect:function(t,e,n,i){var r=new X(t,e,n,i);return K.transformRect(r,this.clientMatrix().inverse())},localToPagePoint:function(t,e){return this.localToPaperPoint(t,e).offset(this.pageOffset())},localToPageRect:function(t,e,n,i){return this.localToPaperRect(t,e,n,i).offset(this.pageOffset())},pageToLocalPoint:function(t,e){var n=new z(t,e).difference(this.pageOffset());return this.paperToLocalPoint(n)},pageToLocalRect:function(t,e,n,i){var r=this.pageOffset(),o=new X(t,e,n,i);return o.x-=r.x,o.y-=r.y,this.paperToLocalRect(o)},clientOffset:function(){var t=this.svg.getBoundingClientRect();return new z(t.left,t.top)},pageOffset:function(){return this.clientOffset().offset(window.scrollX,window.scrollY)},linkAllowed:function(t){if(!(t instanceof qi))throw new Error("Must provide a linkView.");var e=t.model,n=this.options,i=this.model,r=i.constructor.validations;return!(!n.multiLinks&&!r.multiLinks.call(this,i,e))&&(!(!n.linkPinning&&!r.linkPinning.call(this,i,e))&&!("function"==typeof n.allowLink&&!n.allowLink.call(this,t,this)))},getDefaultLink:function(t,e){return jt(this.options.defaultLink)?this.options.defaultLink.call(this,t,e):this.options.defaultLink.clone()},resolveHighlighter:function(e){var t=(e=e||{}).highlighter,n=this.options;if(void 0===t){var i=["embedding","connecting","magnetAvailability","elementAvailability"].find(function(t){return!!e[t]});t=i&&n.highlighting[i]||n.highlighting.default}if(!t)return!1;ue(t)&&(t={name:t});var r=t.name,o=n.highlighterNamespace[r];if(!o)throw new Error('Unknown highlighter ("'+r+'")');if("function"!=typeof o.highlight)throw new Error('Highlighter ("'+r+'") is missing required highlight() method');if("function"!=typeof o.unhighlight)throw new Error('Highlighter ("'+r+'") is missing required unhighlight() method');return{highlighter:o,options:t.options||{},name:r}},onCellHighlight:function(t,e,n){if(n=this.resolveHighlighter(n)){e.id||(e.id=K.uniqueId());var i=n.name+e.id+JSON.stringify(n.options);if(!this._highlights[i]){var r=n.highlighter;r.highlight(t,e,Nt({},n.options)),this._highlights[i]={cellView:t,magnetEl:e,opt:n.options,highlighter:r}}}},onCellUnhighlight:function(t,e,n){if(n=this.resolveHighlighter(n)){var i=n.name+e.id+JSON.stringify(n.options),r=this._highlights[i];r&&(r.highlighter.unhighlight(r.cellView,r.magnetEl,r.opt),this._highlights[i]=null)}},pointerdblclick:function(t){t.preventDefault(),t=ct(t);var e=this.findView(t.target);if(!this.guard(t,e)){var n=this.snapToGrid(t.clientX,t.clientY);e?e.pointerdblclick(t,n.x,n.y):this.trigger("blank:pointerdblclick",t,n.x,n.y)}},pointerclick:function(t){if(this.eventData(t).mousemoved<=this.options.clickThreshold){t=ct(t);var e=this.findView(t.target);if(this.guard(t,e))return;var n=this.snapToGrid(t.clientX,t.clientY);e?e.pointerclick(t,n.x,n.y):this.trigger("blank:pointerclick",t,n.x,n.y)}},contextmenu:function(t){this.options.preventContextMenu&&t.preventDefault(),t=ct(t);var e=this.findView(t.target);if(!this.guard(t,e)){var n=this.snapToGrid(t.clientX,t.clientY);e?e.contextmenu(t,n.x,n.y):this.trigger("blank:contextmenu",t,n.x,n.y)}},pointerdown:function(t){t=ct(t);var e=this.findView(t.target);if(!this.guard(t,e)){var n=this.snapToGrid(t.clientX,t.clientY);e?(t.preventDefault(),e.pointerdown(t,n.x,n.y)):(this.options.preventDefaultBlankAction&&t.preventDefault(),this.trigger("blank:pointerdown",t,n.x,n.y)),this.delegateDragEvents(e,t.data)}},pointermove:function(t){var e=this.eventData(t);if(e.mousemoved||(e.mousemoved=0),!(++e.mousemoved<=this.options.moveThreshold)){t=ct(t);var n=this.snapToGrid(t.clientX,t.clientY),i=e.sourceView;i?i.pointermove(t,n.x,n.y):this.trigger("blank:pointermove",t,n.x,n.y),this.eventData(t,e)}},pointerup:function(t){this.undelegateDocumentEvents();var e=ct(t),n=this.snapToGrid(e.clientX,e.clientY),i=this.eventData(t).sourceView;i?i.pointerup(e,n.x,n.y):this.trigger("blank:pointerup",e,n.x,n.y),e.isPropagationStopped()||this.pointerclick(C.Event(t,{type:"click",data:t.data})),t.stopImmediatePropagation(),this.delegateEvents()},mouseover:function(t){t=ct(t);var e=this.findView(t.target);if(!this.guard(t,e))if(e)e.mouseover(t);else{if(this.el===t.target)return;this.trigger("blank:mouseover",t)}},mouseout:function(t){t=ct(t);var e=this.findView(t.target);if(!this.guard(t,e))if(e)e.mouseout(t);else{if(this.el===t.target)return;this.trigger("blank:mouseout",t)}},mouseenter:function(t){t=ct(t);var e=this.findView(t.target);if(!this.guard(t,e)){var n=this.findView(t.relatedTarget);if(e){if(n===e)return;e.mouseenter(t)}else{if(n)return;this.trigger("paper:mouseenter",t)}}},mouseleave:function(t){t=ct(t);var e=this.findView(t.target);if(!this.guard(t,e)){var n=this.findView(t.relatedTarget);if(e){if(n===e)return;e.mouseleave(t)}else{if(n)return;this.trigger("paper:mouseleave",t)}}},mousewheel:function(t){t=ct(t);var e=this.findView(t.target);if(!this.guard(t,e)){var n=t.originalEvent,i=this.snapToGrid(n.clientX,n.clientY),r=Math.max(-1,Math.min(1,n.wheelDelta||-n.detail));e?e.mousewheel(t,i.x,i.y,r):this.trigger("blank:mousewheel",t,i.x,i.y,r)}},onevent:function(t){var e=t.currentTarget,n=e.getAttribute("event");if(n){var i=this.findView(e);if(i){if(t=ct(t),this.guard(t,i))return;var r=this.snapToGrid(t.clientX,t.clientY);i.onevent(t,n,r.x,r.y)}}},magnetEvent:function(t,e){var n=t.currentTarget;if(n.getAttribute("magnet")){var i=this.findView(n);if(i){if(t=ct(t),this.guard(t,i))return;var r=this.snapToGrid(t.clientX,t.clientY);e.call(this,i,t,n,r.x,r.y)}}},onmagnet:function(t){this.magnetEvent(t,function(t,e,n,i,r){t.onmagnet(e,i,r)})},magnetpointerdblclick:function(t){this.magnetEvent(t,function(t,e,n,i,r){t.magnetpointerdblclick(e,n,i,r)})},magnetcontextmenu:function(t){this.options.preventContextMenu&&t.preventDefault(),this.magnetEvent(t,function(t,e,n,i,r){t.magnetcontextmenu(e,n,i,r)})},onlabel:function(t){var e=t.currentTarget,n=this.findView(e);if(n){if(t=ct(t),this.guard(t,n))return;var i=this.snapToGrid(t.clientX,t.clientY);n.onlabel(t,i.x,i.y)}},getPointerArgs:function(t){var e=ct(t),n=this.snapToGrid(e.clientX,e.clientY);return[e,n.x,n.y]},delegateDragEvents:function(t,e){e||(e={}),this.eventData({data:e},{sourceView:t||null,mousemoved:0}),this.delegateDocumentEvents(null,e),this.undelegateEvents()},guard:function(t,e){return"mousedown"===t.type&&2===t.button||(!(!this.options.guard||!this.options.guard(t,e))||(t.data&&void 0!==t.data.guarded?t.data.guarded:!(e&&e.model&&e.model instanceof Ce)&&(this.svg!==t.target&&this.el!==t.target&&!C.contains(this.svg,t.target))))},setGridSize:function(t){return this.options.gridSize=t,this.options.drawGrid&&this.drawGrid(),this},clearGrid:function(){return this.$grid&&this.$grid.css("backgroundImage","none"),this},_getGridRefs:function(){return this._gridCache||(this._gridCache={root:K("svg",{width:"100%",height:"100%"},K("defs")),patterns:{},add:function(t,e){K(this.root.node.childNodes[0]).append(e),this.patterns[t]=e,this.root.append(K("rect",{width:"100%",height:"100%",fill:"url(#"+t+")"}))},get:function(t){return this.patterns[t]},exist:function(t){return void 0!==this.patterns[t]}}),this._gridCache},setGrid:function(t){return this.clearGrid(),this._gridCache=null,this._gridSettings=[],(Array.isArray(t)?t:[t||{}]).forEach(function(t){this._gridSettings.push.apply(this._gridSettings,this._resolveDrawGridOption(t))},this),this},_resolveDrawGridOption:function(t){var e=this.constructor.gridPatterns;if(ue(t)&&Array.isArray(e[t]))return e[t].map(function(t){return Nt({},t)});var n=t||{args:[{}]},i=Array.isArray(n),r=n.name;if(i||r||n.markup||(r="dot"),r&&Array.isArray(e[r])){var o=e[r].map(function(t){return Nt({},t)}),s=Array.isArray(n.args)?n.args:[n.args||{}];Vt(s[0],te(t,"args"));for(var a=0;a<s.length;a++)o[a]&&Nt(o[a],s[a]);return o}return i?n:[n]},drawGrid:function(t){var a=this.options.gridSize;if(a<=1)return this.clearGrid();var h=Array.isArray(t)?t:[t],l=this.matrix(),u=this._getGridRefs();this._gridSettings.forEach(function(t,e){var n="pattern_"+e,i=se(t,h[e],{sx:l.a||1,sy:l.d||1,ox:l.e||0,oy:l.f||0});i.width=a*(l.a||1)*(i.scaleFactor||1),i.height=a*(l.d||1)*(i.scaleFactor||1),u.exist(n)||u.add(n,K("pattern",{id:n,patternUnits:"userSpaceOnUse"},K(i.markup)));var r=u.get(n);jt(i.update)&&i.update(r.node.childNodes[0],i);var o=i.ox%i.width;o<0&&(o+=i.width);var s=i.oy%i.height;s<0&&(s+=i.height),r.attr({x:o,y:s,width:i.width,height:i.height})});var e=(new XMLSerializer).serializeToString(u.root.node);return e="url(data:image/svg+xml;base64,"+btoa(e)+")",this.$grid.css("backgroundImage",e),this},updateBackgroundImage:function(t){var e=(t=t||{}).position||"center",n=t.size||"auto auto",i=this.scale(),r=this.translate();he(e)&&(e=r.tx+i.sx*(e.x||0)+"px "+(r.ty+i.sy*(e.y||0))+"px");he(n)&&(n=(n=new X(n).scale(i.sx,i.sy)).width+"px "+n.height+"px"),this.$background.css({backgroundSize:n,backgroundPosition:e})},drawBackgroundImage:function(t,e){if(t instanceof HTMLImageElement){var n,i=(e=e||{}).size,r=e.repeat||"no-repeat",o=e.opacity||1,s=Math.abs(e.quality)||1,a=this.constructor.backgroundPatterns[re(r)];if(jt(a)){t.width*=s,t.height*=s;var h=a(t,e);if(!(h instanceof HTMLCanvasElement))throw new Error("dia.Paper: background pattern must return an HTML Canvas instance");n=h.toDataURL("image/png"),r="repeat",he(i)?(i.width*=h.width/t.width,i.height*=h.height/t.height):void 0===i&&(e.size={width:h.width/s,height:h.height/s})}else n=t.src,void 0===i&&(e.size={width:t.width,height:t.height});this.$background.css({opacity:o,backgroundRepeat:r,backgroundImage:"url("+n+")"}),this.updateBackgroundImage(e)}else this.$background.css("backgroundImage","")},updateBackgroundColor:function(t){this.$el.css("backgroundColor",t||"")},drawBackground:function(t){if(t=t||{},this.updateBackgroundColor(t.color),t.image){t=this._background=Dt(t);var e=document.createElement("img");e.onload=this.drawBackgroundImage.bind(this,e,t),e.src=t.image}else this.drawBackgroundImage(null),this._background=null;return this},setInteractivity:function(t){this.options.interactive=t,_t(this._views,"setInteractivity",t)},isDefined:function(t){return!!this.svg.getElementById(t)},defineFilter:function(t){if(!he(t))throw new TypeError("dia.Paper: defineFilter() requires 1. argument to be an object.");var e=t.id,n=t.name;if(e||(e=n+this.svg.id+it(JSON.stringify(t))),!this.isDefined(e)){var i=St,r=i[n]&&i[n](t.args||{});if(!r)throw new Error("Non-existing filter "+n);var o=Nt({filterUnits:"objectBoundingBox",x:-1,y:-1,width:3,height:3},t.attrs,{id:e});K(r,o).appendTo(this.defs)}return e},defineGradient:function(t){if(!he(t))throw new TypeError("dia.Paper: defineGradient() requires 1. argument to be an object.");var e=t.id,n=t.type,i=t.stops;if(e||(e=n+this.svg.id+it(JSON.stringify(t))),!this.isDefined(e)){var r=Et('<stop offset="${offset}" stop-color="${color}" stop-opacity="${opacity}"/>'),o=["<"+n+">",Ut(i).map(function(t){return r({offset:t.offset,color:t.color,opacity:Number.isFinite(t.opacity)?t.opacity:1})}).join(""),"</"+n+">"].join(""),s=Nt({id:e},t.attrs);K(o,s).appendTo(this.defs)}return e},defineMarker:function(t){if(!he(t))throw new TypeError("dia.Paper: defineMarker() requires 1. argument to be an object.");var e=t.id;if(e||(e=this.svg.id+it(JSON.stringify(t))),!this.isDefined(e)){var n=te(t,"type","userSpaceOnUse");K("marker",{id:e,orient:"auto",overflow:"visible",markerUnits:t.markerUnits||"userSpaceOnUse"},[K(t.type||"path",n)]).appendTo(this.defs)}return e}},{sorting:Hi,backgroundPatterns:{flipXy:function(t){var e=document.createElement("canvas"),n=t.width,i=t.height;e.width=2*n,e.height=2*i;var r=e.getContext("2d");return r.drawImage(t,0,0,n,i),r.setTransform(-1,0,0,-1,e.width,e.height),r.drawImage(t,0,0,n,i),r.setTransform(-1,0,0,1,e.width,0),r.drawImage(t,0,0,n,i),r.setTransform(1,0,0,-1,0,e.height),r.drawImage(t,0,0,n,i),e},flipX:function(t){var e=document.createElement("canvas"),n=t.width,i=t.height;e.width=2*n,e.height=i;var r=e.getContext("2d");return r.drawImage(t,0,0,n,i),r.translate(2*n,0),r.scale(-1,1),r.drawImage(t,0,0,n,i),e},flipY:function(t){var e=document.createElement("canvas"),n=t.width,i=t.height;e.width=n,e.height=2*i;var r=e.getContext("2d");return r.drawImage(t,0,0,n,i),r.translate(0,2*i),r.scale(1,-1),r.drawImage(t,0,0,n,i),e},watermark:function(t,e){e=e||{};var n=t.width,i=t.height,r=document.createElement("canvas");r.width=3*n,r.height=3*i;for(var o=r.getContext("2d"),s=le(e.watermarkAngle)?-e.watermarkAngle:-20,a=A(s),h=r.width/4,l=r.height/4,u=0;u<4;u++)for(var c=0;c<4;c++)0<(u+c)%2&&(o.setTransform(1,0,0,1,(2*u-1)*h,(2*c-1)*l),o.rotate(a),o.drawImage(t,-n/2,-i/2,n,i));return r}},gridPatterns:{dot:[{color:"#AAAAAA",thickness:1,markup:"rect",update:function(t,e){K(t).attr({width:e.thickness*e.sx,height:e.thickness*e.sy,fill:e.color})}}],fixedDot:[{color:"#AAAAAA",thickness:1,markup:"rect",update:function(t,e){var n=e.sx<=1?e.thickness*e.sx:e.thickness;K(t).attr({width:n,height:n,fill:e.color})}}],mesh:[{color:"#AAAAAA",thickness:1,markup:"path",update:function(t,e){var n,i=e.width,r=e.height,o=e.thickness;n=0<=i-o&&0<=r-o?["M",i,0,"H0 M0 0 V0",r].join(" "):"M 0 0 0 0",K(t).attr({d:n,stroke:e.color,"stroke-width":e.thickness})}}],doubleMesh:[{color:"#AAAAAA",thickness:1,markup:"path",update:function(t,e){var n,i=e.width,r=e.height,o=e.thickness;n=0<=i-o&&0<=r-o?["M",i,0,"H0 M0 0 V0",r].join(" "):"M 0 0 0 0",K(t).attr({d:n,stroke:e.color,"stroke-width":e.thickness})}},{color:"#000000",thickness:3,scaleFactor:4,markup:"path",update:function(t,e){var n,i=e.width,r=e.height,o=e.thickness;n=0<=i-o&&0<=r-o?["M",i,0,"H0 M0 0 V0",r].join(" "):"M 0 0 0 0",K(t).attr({d:n,stroke:e.color,"stroke-width":e.thickness})}}]}}),Wi=Ye.extend({name:null,tagName:"g",className:"tool",svgElement:!0,_visible:!0,init:function(){var t=this.name;t&&this.vel.attr("data-tool-name",t)},configure:function(t,e){return this.relatedView=t,this.paper=t.paper,this.parentView=e,this.simulateRelatedView(this.el),this.delegateEvents(),this},simulateRelatedView:function(t){t&&t.setAttribute("model-id",this.relatedView.model.id)},getName:function(){return this.name},show:function(){this.el.style.display="",this._visible=!0},hide:function(){this.el.style.display="none",this._visible=!1},isVisible:function(){return!!this._visible},focus:function(){var t=this.options.focusOpacity;isFinite(t)&&(this.el.style.opacity=t),this.parentView.focusTool(this)},blur:function(){this.el.style.opacity="",this.parentView.blurTool(this)},update:function(){},guard:function(t){var e=this.paper,n=this.relatedView;return!e||!n||e.guard(t,n)}}),Zi=Ye.extend({tagName:"g",className:"tools",svgElement:!0,tools:null,options:{tools:null,relatedView:null,name:null,component:!1},configure:function(t){var e=(t=Nt(this.options,t)).tools;if(!Array.isArray(e))return this;var n=t.relatedView;if(!(n instanceof We))return this;for(var i=this.tools=[],r=0,o=e.length;r<o;r++){var s=e[r];s instanceof Wi&&(s.configure(n,this),s.render(),this.vel.append(s.el),i.push(s))}return this},getName:function(){return this.options.name},update:function(t){t||(t={});var e=this.tools;if(e){for(var n=0,i=e.length;n<i;n++){var r=e[n];t.tool!==r.cid&&r.isVisible()&&r.update()}return this}},focusTool:function(t){var e=this.tools;if(!e)return this;for(var n=0,i=e.length;n<i;n++){var r=e[n];t===r?r.show():r.hide()}return this},blurTool:function(t){var e=this.tools;if(!e)return this;for(var n=0,i=e.length;n<i;n++){var r=e[n];r===t||r.isVisible()||(r.show(),r.update())}return this},hide:function(){return this.focusTool(null)},show:function(){return this.blurTool(null)},onRemove:function(){var t=this.tools;if(!t)return this;for(var e=0,n=t.length;e<n;e++)t[e].remove();this.tools=null},mount:function(){var t=this.options,e=t.relatedView;e&&(t.component?e.el:e.paper.tools).appendChild(this.el);return this}}),Ji={ElementView:Ze,Graph:Ui,Cell:Ce,CellView:We,Element:He,attributes:Ee,Link:pn,LinkView:qi,Paper:Xi,ToolView:Wi,ToolsView:Zi};function Ki(t,e,n){return Jn.call(this.paper,{},e,n,t,this.model).anchor}function Qi(t,e){var n=t.model;return e?n.getBBox():n.isLink()?t.getConnection().bbox():t.getNodeUnrotatedBBox(t.el)}var tr=Ye.extend({tagName:"circle",svgElement:!0,className:"marker-vertex",events:{mousedown:"onPointerDown",touchstart:"onPointerDown",dblclick:"onDoubleClick"},documentEvents:{mousemove:"onPointerMove",touchmove:"onPointerMove",mouseup:"onPointerUp",touchend:"onPointerUp",touchcancel:"onPointerUp"},attributes:{r:6,fill:"#33334F",stroke:"#FFFFFF","stroke-width":2,cursor:"move"},position:function(t,e){this.vel.attr({cx:t,cy:e})},onPointerDown:function(t){this.options.guard(t)||(t.stopPropagation(),t.preventDefault(),this.options.paper.undelegateEvents(),this.delegateDocumentEvents(null,t.data),this.trigger("will-change",this,t))},onPointerMove:function(t){this.trigger("changing",this,t)},onDoubleClick:function(t){this.trigger("remove",this,t)},onPointerUp:function(t){this.trigger("changed",this,t),this.undelegateDocumentEvents(),this.options.paper.delegateEvents()}}),er=Wi.extend({name:"vertices",options:{handleClass:tr,snapRadius:20,redundancyRemoval:!0,vertexAdding:!0,stopPropagation:!0},children:[{tagName:"path",selector:"connection",className:"joint-vertices-path",attributes:{fill:"none",stroke:"transparent","stroke-width":10,cursor:"cell"}}],handles:null,events:{"mousedown .joint-vertices-path":"onPathPointerDown","touchstart .joint-vertices-path":"onPathPointerDown"},onRender:function(){return this.options.vertexAdding&&(this.renderChildren(),this.updatePath()),this.resetHandles(),this.renderHandles(),this},update:function(){return this.relatedView.model.vertices().length===this.handles.length?this.updateHandles():(this.resetHandles(),this.renderHandles()),this.options.vertexAdding&&this.updatePath(),this},resetHandles:function(){var t=this.handles;if(this.handles=[],this.stopListening(),Array.isArray(t))for(var e=0,n=t.length;e<n;e++)t[e].remove()},renderHandles:function(){for(var e=this,t=this.relatedView.model.vertices(),n=0,i=t.length;n<i;n++){var r=t[n],o=new this.options.handleClass({index:n,paper:this.paper,guard:function(t){return e.guard(t)}});o.render(),o.position(r.x,r.y),this.simulateRelatedView(o.el),o.vel.appendTo(this.el),this.handles.push(o),this.startHandleListening(o)}},updateHandles:function(){for(var t=this.relatedView.model.vertices(),e=0,n=t.length;e<n;e++){var i=t[e],r=this.handles[e];if(!r)return;r.position(i.x,i.y)}},updatePath:function(){var t=this.childNodes.connection;t&&t.setAttribute("d",this.relatedView.getSerializedConnection())},startHandleListening:function(t){var e=this.relatedView;e.can("vertexMove")&&(this.listenTo(t,"will-change",this.onHandleWillChange),this.listenTo(t,"changing",this.onHandleChanging),this.listenTo(t,"changed",this.onHandleChanged)),e.can("vertexRemove")&&this.listenTo(t,"remove",this.onHandleRemove)},getNeighborPoints:function(t){var e=this.relatedView,n=e.model.vertices(),i=0<t?n[t-1]:e.sourceAnchor,r=t<n.length-1?n[t+1]:e.targetAnchor;return{prev:new z(i),next:new z(r)}},onHandleWillChange:function(t,e){this.focus();var n=this.relatedView,i=this.options;n.model.startBatch("vertex-move",{ui:!0,tool:this.cid}),i.stopPropagation||n.notifyPointerdown.apply(n,n.paper.getPointerArgs(e))},onHandleChanging:function(t,e){var n=this.options,i=this.relatedView,r=t.options.index,o=i.paper.getPointerArgs(e),s=o[0],a=o[1],h=o[2],l={x:a,y:h};this.snapVertex(l,r),i.model.vertex(r,l,{ui:!0,tool:this.cid}),t.position(l.x,l.y),n.stopPropagation||i.notifyPointermove(s,a,h)},onHandleChanged:function(t,e){var n=this.options,i=this.relatedView;if(n.vertexAdding&&this.updatePath(),n.redundancyRemoval){i.removeRedundantLinearVertices({ui:!0,tool:this.cid})&&this.render(),this.blur(),i.model.stopBatch("vertex-move",{ui:!0,tool:this.cid}),this.eventData(e).vertexAdded&&i.model.stopBatch("vertex-add",{ui:!0,tool:this.cid});var r=i.paper.getPointerArgs(e),o=r[0],s=r[1],a=r[2];n.stopPropagation||i.notifyPointerup(o,s,a),i.checkMouseleave(o)}},snapVertex:function(t,e){var n=this.options.snapRadius;if(0<n){var i=this.getNeighborPoints(e),r=i.prev,o=i.next;Math.abs(t.x-r.x)<n?t.x=r.x:Math.abs(t.x-o.x)<n&&(t.x=o.x),Math.abs(t.y-r.y)<n?t.y=i.prev.y:Math.abs(t.y-o.y)<n&&(t.y=o.y)}},onHandleRemove:function(t,e){var n=t.options.index,i=this.relatedView;i.model.removeVertex(n,{ui:!0}),this.options.vertexAdding&&this.updatePath(),i.checkMouseleave(ct(e))},onPathPointerDown:function(t){if(!this.guard(t)){t.stopPropagation(),t.preventDefault();var e=ct(t),n=this.paper.snapToGrid(e.clientX,e.clientY).toJSON(),i=this.relatedView;i.model.startBatch("vertex-add",{ui:!0,tool:this.cid});var r=i.getVertexIndex(n.x,n.y);this.snapVertex(n,r),i.model.insertVertex(r,n,{ui:!0,tool:this.cid}),this.render();var o=this.handles[r];this.eventData(e,{vertexAdded:!0}),o.onPointerDown(e)}},onRemove:function(){this.resetHandles()}},{VertexHandle:tr}),nr=Ye.extend({tagName:"g",svgElement:!0,className:"marker-segment",events:{mousedown:"onPointerDown",touchstart:"onPointerDown"},documentEvents:{mousemove:"onPointerMove",touchmove:"onPointerMove",mouseup:"onPointerUp",touchend:"onPointerUp",touchcancel:"onPointerUp"},children:[{tagName:"line",selector:"line",attributes:{stroke:"#33334F","stroke-width":2,fill:"none","pointer-events":"none"}},{tagName:"rect",selector:"handle",attributes:{width:20,height:8,x:-10,y:-4,rx:4,ry:4,fill:"#33334F",stroke:"#FFFFFF","stroke-width":2}}],onRender:function(){this.renderChildren()},position:function(t,e,n,i){var r=K.createSVGMatrix().translate(t,e).rotate(n),o=this.childNodes.handle;o.setAttribute("transform",K.matrixToTransformString(r)),o.setAttribute("cursor",n%180==0?"row-resize":"col-resize");var s=i.getClosestPoint(new z(t,e)),a=this.childNodes.line;a.setAttribute("x1",t),a.setAttribute("y1",e),a.setAttribute("x2",s.x),a.setAttribute("y2",s.y)},onPointerDown:function(t){this.options.guard(t)||(this.trigger("change:start",this,t),t.stopPropagation(),t.preventDefault(),this.options.paper.undelegateEvents(),this.delegateDocumentEvents(null,t.data))},onPointerMove:function(t){this.trigger("changing",this,t)},onPointerUp:function(t){this.undelegateDocumentEvents(),this.options.paper.delegateEvents(),this.trigger("change:end",this,t)},show:function(){this.el.style.display=""},hide:function(){this.el.style.display="none"}}),ir=Wi.extend({name:"segments",precision:.5,options:{handleClass:nr,segmentLengthThreshold:40,redundancyRemoval:!0,anchor:Ki,snapRadius:10,snapHandle:!0},handles:null,onRender:function(){this.resetHandles();var t=this.relatedView,e=t.model.vertices();e.unshift(t.sourcePoint),e.push(t.targetPoint);for(var n=0,i=e.length;n<i-1;n++){var r=e[n],o=e[n+1],s=this.renderHandle(r,o);this.simulateRelatedView(s.el),this.handles.push(s),s.options.index=n}return this},renderHandle:function(t,e){var n=this,i=new this.options.handleClass({paper:this.paper,guard:function(t){return n.guard(t)}});return i.render(),this.updateHandle(i,t,e),i.vel.appendTo(this.el),this.startHandleListening(i),i},update:function(){return this.render(),this},startHandleListening:function(t){this.listenTo(t,"change:start",this.onHandleChangeStart),this.listenTo(t,"changing",this.onHandleChanging),this.listenTo(t,"change:end",this.onHandleChangeEnd)},resetHandles:function(){var t=this.handles;if(this.handles=[],this.stopListening(),Array.isArray(t))for(var e=0,n=t.length;e<n;e++)t[e].remove()},shiftHandleIndexes:function(t){for(var e=this.handles,n=0,i=e.length;n<i;n++)e[n].options.index+=t},resetAnchor:function(t,e){var n=this.relatedView.model;e?n.prop([t,"anchor"],e,{rewrite:!0,ui:!0,tool:this.cid}):n.removeProp([t,"anchor"],{ui:!0,tool:this.cid})},snapHandle:function(t,e,n){var i=t.options.index,r=this.relatedView.model.vertices(),o=t.options.axis,s=r[i-2]||n.sourceAnchor,a=r[i+1]||n.targetAnchor,h=this.options.snapRadius;return Math.abs(e[o]-s[o])<h?e[o]=s[o]:Math.abs(e[o]-a[o])<h&&(e[o]=a[o]),e},onHandleChanging:function(t,e){var n=this.eventData(e),i=this.relatedView,r=i.paper,o=t.options.index-1,s=ct(e),a=r.snapToGrid(s.clientX,s.clientY),h=this.snapHandle(t,a.clone(),n),l=t.options.axis,u=this.options.snapHandle?0:a[l]-h[l],c=i.model,d=Dt(c.vertices()),f=d[o],p=d[o+1],g=this.options.anchor;"function"!=typeof g&&(g=null);var v=i.sourceView,m=i.sourceBBox,y=!1,w=!1;if(f?0===o?m.containsPoint(f)?(d.shift(),this.shiftHandleIndexes(-1),y=!0):(f[l]=h[l],w=!0):f[l]=h[l]:((f=i.sourceAnchor.toJSON())[l]=h[l],m.containsPoint(f)?(f[l]=h[l],y=!0):(d.unshift(f),this.shiftHandleIndexes(1),w=!0)),g&&v){if(y){var b=n.sourceAnchor.clone();b[l]=h[l];var x=g.call(i,b,v,i.sourceMagnet||v.el,"source",i);this.resetAnchor("source",x)}w&&this.resetAnchor("source",n.sourceAnchorDef)}var A=i.targetView,P=i.targetBBox,S=!1,k=!1;if(p?o===d.length-2?P.containsPoint(p)?(d.pop(),S=!0):(p[l]=h[l],k=!0):p[l]=h[l]:((p=i.targetAnchor.toJSON())[l]=h[l],P.containsPoint(p)?S=!0:(d.push(p),k=!0)),g&&A){if(S){var E=n.targetAnchor.clone();E[l]=h[l];var C=g.call(i,E,A,i.targetMagnet||A.el,"target",i);this.resetAnchor("target",C)}k&&this.resetAnchor("target",n.targetAnchorDef)}c.vertices(d,{ui:!0,tool:this.cid}),this.updateHandle(t,f,p,u)},onHandleChangeStart:function(t,e){var n=t.options.index,i=this.handles;if(Array.isArray(i)){for(var r=0,o=i.length;r<o;r++)r!==n&&i[r].hide();this.focus();var s=this.relatedView,a=s.model;this.eventData(e,{sourceAnchor:s.sourceAnchor.clone(),targetAnchor:s.targetAnchor.clone(),sourceAnchorDef:Ot(a.prop(["source","anchor"])),targetAnchorDef:Ot(a.prop(["target","anchor"]))}),s.model.startBatch("segment-move",{ui:!0,tool:this.cid})}},onHandleChangeEnd:function(t,e){var n=this.relatedView;this.options.redundancyRemoval&&n.removeRedundantLinearVertices({ui:!0,tool:this.cid}),this.render(),this.blur(),n.model.stopBatch("segment-move",{ui:!0,tool:this.cid}),n.checkMouseleave(ct(e))},updateHandle:function(t,e,n,i){var r=Math.abs(e.x-n.x)<this.precision,o=Math.abs(e.y-n.y)<this.precision;if(r||o){var s=new O(e,n);if(s.length()<this.options.segmentLengthThreshold)t.hide();else{var a=s.midpoint(),h=r?"x":"y";a[h]+=i||0;var l=s.vector().vectorAngle(new z(1,0));t.position(a.x,a.y,l,this.relatedView),t.show(),t.options.axis=h}}else t.hide()},onRemove:function(){this.resetHandles()}},{SegmentHandle:nr}),rr=Wi.extend({tagName:"path",xAxisVector:new z(1,0),events:{mousedown:"onPointerDown",touchstart:"onPointerDown"},documentEvents:{mousemove:"onPointerMove",touchmove:"onPointerMove",mouseup:"onPointerUp",touchend:"onPointerUp",touchcancel:"onPointerUp"},onRender:function(){this.update()},update:function(){var t,e,n=this.ratio,i=this.relatedView,r=i.getTangentAtRatio(n);if(e=r?(t=r.start,r.vector().vectorAngle(this.xAxisVector)||0):(t=i.getPointAtRatio(n),0),!t)return this;var o=K.createSVGMatrix().translate(t.x,t.y).rotate(e);return this.vel.transform(o,{absolute:!0}),this},onPointerDown:function(t){if(!this.guard(t)){t.stopPropagation(),t.preventDefault();var e=this.relatedView;e.model.startBatch("arrowhead-move",{ui:!0,tool:this.cid}),e.can("arrowheadMove")&&(e.startArrowheadMove(this.arrowheadType),this.delegateDocumentEvents(),e.paper.undelegateEvents()),this.focus(),this.el.style.pointerEvents="none"}},onPointerMove:function(t){var e=ct(t),n=this.paper.snapToGrid(e.clientX,e.clientY);this.relatedView.pointermove(e,n.x,n.y)},onPointerUp:function(t){this.undelegateDocumentEvents();var e=this.relatedView,n=e.paper,i=ct(t),r=n.snapToGrid(i.clientX,i.clientY);e.pointerup(i,r.x,r.y),n.delegateEvents(),this.blur(),this.el.style.pointerEvents="",e.model.stopBatch("arrowhead-move",{ui:!0,tool:this.cid})}}),or=rr.extend({name:"target-arrowhead",ratio:1,arrowheadType:"target",attributes:{d:"M -10 -8 10 0 -10 8 Z",fill:"#33334F",stroke:"#FFFFFF","stroke-width":2,cursor:"move",class:"target-arrowhead"}}),sr=rr.extend({name:"source-arrowhead",ratio:0,arrowheadType:"source",attributes:{d:"M 10 -8 -10 0 10 8 Z",fill:"#33334F",stroke:"#FFFFFF","stroke-width":2,cursor:"move",class:"source-arrowhead"}}),ar=Wi.extend({name:"button",events:{mousedown:"onPointerDown",touchstart:"onPointerDown"},options:{distance:0,offset:0,rotate:!1},onRender:function(){this.renderChildren(this.options.markup),this.update()},update:function(){return this.position(),this},position:function(){var t=this.relatedView,e=this.vel,n=t.model.isLink()?this.getLinkMatrix():this.getElementMatrix();e.transform(n,{absolute:!0})},getElementMatrix:function(){var t=this.relatedView,e=this.options,n=e.x;void 0===n&&(n=0);var i=e.y;void 0===i&&(i=0);var r=e.offset;void 0===r&&(r={});var o=e.useModelGeometry,s=e.rotate,a=Qi(t,o),h=t.model.angle();s||(a=a.bbox(h));var l=r.x;void 0===l&&(l=0);var u=r.y;void 0===u&&(u=0),pt(n)&&(n=parseFloat(n)/100*a.width),pt(i)&&(i=parseFloat(i)/100*a.height);var c=K.createSVGMatrix().translate(a.x+a.width/2,a.y+a.height/2);return s&&(c=c.rotate(h)),c=c.translate(n+l-a.width/2,i+u-a.height/2)},getLinkMatrix:function(){var t=this.relatedView,e=this.options,n=e.offset;void 0===n&&(n=0);var i=e.distance;void 0===i&&(i=0);var r,o,s,a=e.rotate;s=(r=pt(i)?t.getTangentAtRatio(parseFloat(i)/100):t.getTangentAtLength(i))?(o=r.start,r.vector().vectorAngle(new z(1,0))||0):(o=t.getConnection().start,0);var h=K.createSVGMatrix().translate(o.x,o.y).rotate(s).translate(0,n);return a||(h=h.rotate(-s)),h},onPointerDown:function(t){if(!this.guard(t)){t.stopPropagation(),t.preventDefault();var e=this.options.action;"function"==typeof e&&e.call(this.relatedView,t,this.relatedView,this)}}}),hr=ar.extend({children:[{tagName:"circle",selector:"button",attributes:{r:7,fill:"#FF1D00",cursor:"pointer"}},{tagName:"path",selector:"icon",attributes:{d:"M -3 -3 3 3 M -3 3 3 -3",fill:"none",stroke:"#FFFFFF","stroke-width":2,"pointer-events":"none"}}],options:{distance:60,offset:0,action:function(t,e,n){e.model.remove({ui:!0,tool:n.cid})}}}),lr=Wi.extend({name:"boundary",tagName:"rect",options:{padding:10,useModelGeometry:!1},attributes:{fill:"none",stroke:"#33334F","stroke-width":.5,"stroke-dasharray":"5, 5","pointer-events":"none"},onRender:function(){this.update()},update:function(){var t=this.relatedView,e=this.options,n=this.vel,i=e.useModelGeometry,r=e.rotate,o=xt(e.padding),s=Qi(t,i).moveAndExpand({x:-o.left,y:-o.top,width:o.left+o.right,height:o.top+o.bottom}),a=t.model;if(a.isElement()){var h=a.angle();if(h)if(r){var l=a.getBBox().center();n.rotate(h,l.x,l.y,{absolute:!0})}else s=s.bbox(h)}return n.attr(s.toJSON()),this}}),ur=Wi.extend({tagName:"g",type:null,children:[{tagName:"circle",selector:"anchor",attributes:{cursor:"pointer"}},{tagName:"rect",selector:"area",attributes:{"pointer-events":"none",fill:"none",stroke:"#33334F","stroke-dasharray":"2,4",rx:5,ry:5}}],events:{mousedown:"onPointerDown",touchstart:"onPointerDown",dblclick:"onPointerDblClick"},documentEvents:{mousemove:"onPointerMove",touchmove:"onPointerMove",mouseup:"onPointerUp",touchend:"onPointerUp",touchcancel:"onPointerUp"},options:{snap:function(t,e,n,i,r,o){var s=o.options.snapRadius,a="source"===i,h=a?0:-1,l=this.model.vertex(h)||this.getEndAnchor(a?"target":"source");return l&&(Math.abs(l.x-t.x)<s&&(t.x=l.x),Math.abs(l.y-t.y)<s&&(t.y=l.y)),t},anchor:Ki,customAnchorAttributes:{"stroke-width":4,stroke:"#33334F",fill:"#FFFFFF",r:5},defaultAnchorAttributes:{"stroke-width":2,stroke:"#FFFFFF",fill:"#33334F",r:6},areaPadding:6,snapRadius:10,restrictArea:!0,redundancyRemoval:!0},onRender:function(){this.renderChildren(),this.toggleArea(!1),this.update()},update:function(){var t=this.type,e=this.relatedView.getEndView(t);return this.el.style.display=e?(this.updateAnchor(),this.updateArea(),""):"none",this},updateAnchor:function(){var t=this.childNodes;if(t){var e=t.anchor;if(e){var n=this.relatedView,i=this.type,r=n.getEndAnchor(i),o=this.options,s=n.model.prop([i,"anchor"]);e.setAttribute("transform","translate("+r.x+","+r.y+")");var a=s?o.customAnchorAttributes:o.defaultAnchorAttributes;for(var h in a)e.setAttribute(h,a[h])}}},updateArea:function(){var t=this.childNodes;if(t){var e=t.area;if(e){var n,i,r,o=this.relatedView,s=this.type,a=o.getEndView(s),h=a.model,l=o.getEndMagnet(s),u=this.options.areaPadding;isFinite(u)||(u=0),a.isNodeConnection(l)?(i=0,r=(n=a.getBBox()).center()):(n=a.getNodeUnrotatedBBox(l),i=h.angle(),r=n.center(),i&&r.rotate(h.getBBox().center(),-i)),n.inflate(u),e.setAttribute("x",-n.width/2),e.setAttribute("y",-n.height/2),e.setAttribute("width",n.width),e.setAttribute("height",n.height),e.setAttribute("transform","translate("+r.x+","+r.y+") rotate("+i+")")}}},toggleArea:function(t){this.childNodes.area.style.display=t?"":"none"},onPointerDown:function(t){this.guard(t)||(t.stopPropagation(),t.preventDefault(),this.paper.undelegateEvents(),this.delegateDocumentEvents(),this.focus(),this.toggleArea(this.options.restrictArea),this.relatedView.model.startBatch("anchor-move",{ui:!0,tool:this.cid}))},resetAnchor:function(t){var e=this.type,n=this.relatedView.model;t?n.prop([e,"anchor"],t,{rewrite:!0,ui:!0,tool:this.cid}):n.removeProp([e,"anchor"],{ui:!0,tool:this.cid})},onPointerMove:function(t){var e,n=this.relatedView,i=this.type,r=n.getEndView(i),o=r.model,s=n.getEndMagnet(i),a=ct(t),h=this.paper.clientToLocalPoint(a.clientX,a.clientY),l=this.options.snap;if("function"==typeof l&&(h=l.call(n,h,r,s,i,n,this),h=new z(h)),this.options.restrictArea)if(r.isNodeConnection(s)){var u=r.getClosestPoint(h);u&&(h=u)}else{var c=r.getNodeUnrotatedBBox(s),d=o.angle(),f=o.getBBox().center(),p=h.clone().rotate(f,d);c.containsPoint(p)||(h=c.pointNearestToPoint(p).rotate(f,-d))}var g=this.options.anchor;"function"==typeof g&&(e=g.call(n,h,r,s,i,n)),this.resetAnchor(e),this.update()},onPointerUp:function(t){this.paper.delegateEvents(),this.undelegateDocumentEvents(),this.blur(),this.toggleArea(!1);var e=this.relatedView;this.options.redundancyRemoval&&e.removeRedundantLinearVertices({ui:!0,tool:this.cid}),e.model.stopBatch("anchor-move",{ui:!0,tool:this.cid})},onPointerDblClick:function(){this.resetAnchor(),this.update()}}),cr={Vertices:er,Segments:ir,SourceArrowhead:sr,TargetArrowhead:or,SourceAnchor:ur.extend({name:"source-anchor",type:"source"}),TargetAnchor:ur.extend({name:"target-anchor",type:"target"}),Button:ar,Remove:hr,Boundary:lr},dr={Button:ar,Remove:hr,Boundary:lr},fr=K,pr={PortLabel:je,Port:Be},gr={basic:fn,standard:Tn};e.V=K,e.Vectorizer=fr,e.anchors=ji,e.config=Q,e.connectionPoints=qn,e.connectionStrategies=Kn,e.connectors=On,e.dia=Ji,e.elementTools=dr,e.env=Je,e.format={},e.g=J,e.highlighters=Dn,e.layout=pr,e.linkAnchors=zi,e.linkTools=cr,e.mvc=Xe,e.routers=_i,e.setTheme=function(t,e){_t($e,"setTheme",t,e=e||{}),Ye.prototype.defaultTheme=t},e.shapes=gr,e.ui={},e.util=Me,e.version="3.1.1",Object.defineProperty(e,"__esModule",{value:!0})}),"undefined"!=typeof joint)var g=joint.g,V=joint.V,Vectorizer=joint.V;