1 line
11 KiB
JavaScript
1 line
11 KiB
JavaScript
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(function(undefined){"use strict";function Supervisor(sigInst,options){var _this=this,workerFn=sigInst.getForceAtlas2Worker&&sigInst.getForceAtlas2Worker();if(options=options||{},_root.URL=_root.URL||_root.webkitURL,this.sigInst=sigInst,this.graph=this.sigInst.graph,this.ppn=10,this.ppe=3,this.config={},this.shouldUseWorker=options.worker===!1?!1:!0&&webWorkers,this.workerUrl=options.workerUrl,this.started=!1,this.running=!1,this.shouldUseWorker){if(this.workerUrl)this.worker=new Worker(this.workerUrl);else{var blob=this.makeBlob(workerFn);this.worker=new Worker(URL.createObjectURL(blob))}this.worker.postMessage=this.worker.webkitPostMessage||this.worker.postMessage}else eval(workerFn);this.msgName=this.worker?"message":"newCoords",this.listener=function(t){_this.nodesByteArray=new Float32Array(t.data.nodes),_this.running&&(_this.applyLayoutChanges(),_this.sendByteArrayToWorker(),_this.sigInst.refresh())},(this.worker||document).addEventListener(this.msgName,this.listener),this.graphToByteArrays(),sigInst.bind("kill",function(){sigInst.killForceAtlas2()})}if("undefined"==typeof sigma)throw"sigma is not declared";var _root=this,webWorkers="Worker"in _root;Supervisor.prototype.makeBlob=function(t){var e;try{e=new Blob([t],{type:"application/javascript"})}catch(s){_root.BlobBuilder=_root.BlobBuilder||_root.WebKitBlobBuilder||_root.MozBlobBuilder,e=new BlobBuilder,e.append(t),e=e.getBlob()}return e},Supervisor.prototype.graphToByteArrays=function(){var t,e,s,r=this.graph.nodes(),i=this.graph.edges(),o=r.length*this.ppn,n=i.length*this.ppe,a={};for(this.nodesByteArray=new Float32Array(o),this.edgesByteArray=new Float32Array(n),t=e=0,s=r.length;s>t;t++)a[r[t].id]=e,this.nodesByteArray[e]=r[t].x,this.nodesByteArray[e+1]=r[t].y,this.nodesByteArray[e+2]=0,this.nodesByteArray[e+3]=0,this.nodesByteArray[e+4]=0,this.nodesByteArray[e+5]=0,this.nodesByteArray[e+6]=1+this.graph.degree(r[t].id),this.nodesByteArray[e+7]=1,this.nodesByteArray[e+8]=r[t].size,this.nodesByteArray[e+9]=0,e+=this.ppn;for(t=e=0,s=i.length;s>t;t++)this.edgesByteArray[e]=a[i[t].source],this.edgesByteArray[e+1]=a[i[t].target],this.edgesByteArray[e+2]=i[t].weight||0,e+=this.ppe},Supervisor.prototype.applyLayoutChanges=function(){for(var t=this.graph.nodes(),e=0,s=0,r=this.nodesByteArray.length;r>s;s+=this.ppn)t[e].x=this.nodesByteArray[s],t[e].y=this.nodesByteArray[s+1],e++},Supervisor.prototype.sendByteArrayToWorker=function(t){var e={action:t||"loop",nodes:this.nodesByteArray.buffer},s=[this.nodesByteArray.buffer];"start"===t&&(e.config=this.config||{},e.edges=this.edgesByteArray.buffer,s.push(this.edgesByteArray.buffer)),this.shouldUseWorker?this.worker.postMessage(e,s):_root.postMessage(e,"*")},Supervisor.prototype.start=function(){if(!this.running){this.running=!0;var t,e;for(t in this.sigInst.cameras)e=this.sigInst.cameras[t],e.edgequadtree._enabled=!1;this.started?this.sendByteArrayToWorker():(this.sendByteArrayToWorker("start"),this.started=!0)}},Supervisor.prototype.stop=function(){if(this.running){var t,e,s;for(t in this.sigInst.cameras)e=this.sigInst.cameras[t],e.edgequadtree._enabled=!0,s=sigma.utils.getBoundaries(this.graph,e.readPrefix),e.settings("drawEdges")&&e.settings("enableEdgeHovering")&&e.edgequadtree.index(this.sigInst.graph,{prefix:e.readPrefix,bounds:{x:s.minX,y:s.minY,width:s.maxX-s.minX,height:s.maxY-s.minY}});this.running=!1}},Supervisor.prototype.killWorker=function(){this.worker?this.worker.terminate():(_root.postMessage({action:"kill"},"*"),document.removeEventListener(this.msgName,this.listener))},Supervisor.prototype.configure=function(t){if(this.config=t,this.started){var e={action:"config",config:this.config};this.shouldUseWorker?this.worker.postMessage(e):_root.postMessage(e,"*")}},sigma.prototype.startForceAtlas2=function(t){return this.supervisor||(this.supervisor=new Supervisor(this,t)),t&&this.supervisor.configure(t),this.supervisor.start(),this},sigma.prototype.stopForceAtlas2=function(){return this.supervisor?(this.supervisor.stop(),this):this},sigma.prototype.killForceAtlas2=function(){return this.supervisor?(this.supervi
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