@antv/layout/dist/worker.js

graph layout algorithm

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/**
     * @license
     * Copyright 2019 Google LLC
     * SPDX-License-Identifier: Apache-2.0
     */
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window?window.innerHeight:0;return{width:o,height:i,center:null!=n?n:[o/2,i/2]}};class Mt{constructor(t,e={}){this.edgeIdCounter=new Map,this.nodeMap=function(t,e){if(!t)throw new Error("Data.nodes is required");const r=new Map;for(const n of t){const t={_original:n};for(const e of Nt){const r=n[e];E(r)||(t[e]=r)}if(e){const r=e(n);for(const e in r){const n=r[e];E(n)||(t[e]=n)}}if(E(t.id))throw new Error("Node is missing id field");r.set(t.id,t)}return r}(t.nodes,e.node),this.edgeMap=function(t,e,r){const n=new Map;for(const o of t){const t={_original:o};for(const e of _t){const r=o[e];E(r)||(t[e]=r)}if(e){const r=e(o);for(const e in r){const n=r[e];E(n)||(t[e]=n)}}if(E(t.source)||E(t.target))throw new Error("Edge is missing source or target field");E(t.id)&&(t.id=null==r?void 0:r(o)),n.set(t.id,t)}return n}(t.edges||[],e.edge,this.getEdgeId.bind(this))}data(){return{nodes:this.nodeMap,edges:this.edgeMap}}replace(t){this.nodeMap=t.nodes,this.edgeMap=t.edges,this.clearCache()}nodes(){return Array.from(this.nodeMap.values())}node(t){return this.nodeMap.get(t)}nodeAt(t){this.indexNodeCache||this.buildNodeIndexCache();const e=this.indexNodeCache.get(t);return e?this.nodeMap.get(e):void 0}nodeIndexOf(t){var e;return this.nodeIndexCache||this.buildNodeIndexCache(),null!==(e=this.nodeIndexCache.get(t))&&void 0!==e?e:-1}firstNode(){return this.nodeMap.values().next().value}forEachNode(t){let e=0;this.nodeMap.forEach(r=>t(r,e++))}originalNode(t){const e=this.nodeMap.get(t);return null==e?void 0:e._original}nodeCount(){return this.nodeMap.size}edges(){return Array.from(this.edgeMap.values())}edge(t){return this.edgeMap.get(t)}firstEdge(){return this.edgeMap.values().next().value}forEachEdge(t){let e=0;this.edgeMap.forEach(r=>t(r,e++))}originalEdge(t){const e=this.edgeMap.get(t);return null==e?void 0:e._original}edgeCount(){return this.edgeMap.size}getEdgeId(t){if(t.id)return t.id;const e=`${t.source}-${t.target}`,r=this.edgeIdCounter.get(e)||0,n=0===r?e:`${e}-${r}`;return this.edgeIdCounter.set(e,r+1),n}degree(t,e="both"){this.degreeCache||this.buildDegreeCache();const r=this.degreeCache.get(t);return r?r[e]:0}neighbors(t,e="both"){if(this.outAdjacencyCache&&this.inAdjacencyCache||this.buildAdjacencyCache(),"out"===e)return Array.from(this.outAdjacencyCache.get(t)||[]);if("in"===e)return Array.from(this.inAdjacencyCache.get(t)||[]);if(this.bothAdjacencyCache)return Array.from(this.bothAdjacencyCache.get(t)||[]);const r=this.inAdjacencyCache.get(t),n=this.outAdjacencyCache.get(t);if(!r&&!n)return[];if(!r)return Array.from(n);if(!n)return Array.from(r);const o=new Set;return r.forEach(t=>o.add(t)),n.forEach(t=>o.add(t)),Array.from(o)}successors(t){return this.neighbors(t,"out")}predecessors(t){return this.neighbors(t,"in")}setNodeOrder(t){const e=new Map;for(const r of t)e.set(r.id,r);this.nodeMap=e,this.nodeIndexCache=void 0,this.indexNodeCache=void 0}clearCache(){this.degreeCache=void 0,this.inAdjacencyCache=void 0,this.outAdjacencyCache=void 0,this.bothAdjacencyCache=void 0,this.nodeIndexCache=void 0,this.indexNodeCache=void 0}buildDegreeCache(){this.degreeCache=new Map;for(const t of this.edges()){const{source:e,target:r}=t;if(t.source===t.target)continue;this.degreeCache.has(e)||this.degreeCache.set(e,{in:0,out:0,both:0});const n=this.degreeCache.get(t.source);n&&(n.out++,n.both++),this.degreeCache.has(r)||this.degreeCache.set(r,{in:0,out:0,both:0});const o=this.degreeCache.get(t.target);o&&(o.in++,o.both++)}}buildAdjacencyCache(){this.inAdjacencyCache=new Map,this.outAdjacencyCache=new Map;for(const t of this.edges())this.nodeMap.has(t.source)&&this.nodeMap.has(t.target)&&(this.outAdjacencyCache.has(t.source)||this.outAdjacencyCache.set(t.source,new Set),this.outAdjacencyCache.get(t.source).add(t.target),this.inAdjacencyCache.has(t.target)||this.inAdjacencyCache.set(t.target,new Set),this.inAdjacencyCache.get(t.target).add(t.source))}buildNodeIndexCache(){this.nodeIndexCache=new Map,this.indexNodeCache=new Map;let t=0;this.nodeMap.forEach((e,r)=>{this.nodeIndexCache.set(r,t),this.indexNodeCache.set(t,r),t++})}destroy(){this.clearCache(),this.nodeMap.clear(),this.edgeMap.clear(),this.edgeIdCounter.clear()}}const Nt=["id","x","y","z","vx","vy","vz","fx","fy","fz","parentId"],_t=["id","source","target","points"];function kt(t,e,r,n=2){t.forEachNode(t=>{E(t.x)&&(t.x=Math.random()*e),E(t.y)&&(t.y=Math.random()*r),3===n&&E(t.z)&&(t.z=Math.random()*Math.min(e,r))})}class St{constructor(t,e={}){this.graph=new Mt(t,e)}export(){return this.graph.data()}replace(t){this.graph.replace(t)}forEachNode(t){this.graph.forEachNode(t)}forEachEdge(t){this.graph.forEachEdge((e,r)=>{e.sourceNode=this.graph.node(e.source),e.targetNode=this.graph.node(e.target),t(e,r)})}destroy(){this.graph.destroy()}}class At{constructor(){this.worker=null,this.workerApi=null}execute(e,r,n){return t(this,void 0,void 0,function*(){if(this.worker||(yield this.initWorker()),!this.workerApi)throw new Error("Worker API not initialized");return yield this.workerApi.execute(e,r,n)})}destroy(){this.workerApi&&this.workerApi.destroy(),this.worker&&(this.worker.terminate(),this.worker=null,this.workerApi=null)}initWorker(){return t(this,void 0,void 0,function*(){const t=this.resolveWorkerPath(),e=t.includes("/lib/")||t.endsWith(".mjs")?"module":"classic";this.worker=new Worker(t,{type:e}),this.workerApi=h(this.worker)})}resolveWorkerPath(){const t=(()=>{if("undefined"==typeof document)return null;const t=document.currentScript;if(null==t?void 0:t.src)return t.src;const e=document.getElementsByTagName("script");for(let t=e.length-1;t>=0;t--){const r=e[t].src;if(r&&(r.includes("index.js")||r.includes("index.min.js")))return r}return null})();if(t){if(t.includes("index.js")||t.includes("index.min.js")){const e=t.replace(/index(\.min)?\.(m?js)(\?.*)?$/,"worker.js");if(e!==t)return e}const e=t.replace(/\/runtime\/[^/]+\.(m?js)(\?.*)?$/,"/worker.js");if(e!==t)return e;const r=t.replace(/\/[^/]+\.(m?js)(\?.*)?$/,"/worker.js");if(r!==t)return r}return"./worker.js"}}class Ot{constructor(t){this.supervisor=null,this.initialOptions=this.mergeOptions(this.getDefaultOptions(),t)}get options(){return this.runtimeOptions||this.initialOptions}mergeOptions(t,e){return Object.assign({},t,e||{})}execute(e,r){return t(this,void 0,void 0,function*(){this.runtimeOptions=this.mergeOptions(this.initialOptions,r);const{node:t,edge:n,enableWorker:o}=this.runtimeOptions;this.context=new St(e,{node:t,edge:n}),this.model=this.context.graph;o&&"undefined"!=typeof Worker?yield this.layoutInWorker(e,this.runtimeOptions):yield this.layout(this.runtimeOptions)})}layoutInWorker(e,r){var n;return t(this,void 0,void 0,function*(){try{this.supervisor||(this.supervisor=new At);const t=yield this.supervisor.execute(this.id,e,r);null===(n=this.context)||void 0===n||n.replace(t)}catch(t){console.error("Layout in worker failed, fallback to main thread layout.",t),yield this.layout(r)}})}forEachNode(t){this.context.forEachNode(t)}forEachEdge(t){this.context.forEachEdge(t)}destroy(){var t;null===(t=this.context)||void 0===t||t.destroy(),this.model=null,this.context=null,this.supervisor&&(this.supervisor.destroy(),this.supervisor=null)}}class zt extends Ot{}class jt{constructor(t={}){this.options=t,this.nodes=new Map,this.edges=new Map,this.inEdges=new Map,this.outEdges=new Map,this.parentMap=new Map,this.childrenMap=new Map,t.tree&&Array.isArray(t.tree)&&t.tree.length>0&&("string"==typeof t.tree[0]?t.tree.forEach(t=>{this.parentMap.set(t,new Map),this.childrenMap.set(t,new Map)}):(this.attachTreeStructure("default"),this.addTree(t.tree))),t.nodes&&t.nodes.forEach(t=>this.addNode(t)),t.edges&&t.edges.forEach(t=>this.addEdge(t))}addNode(t){this.nodes.has(t.id)||(this.nodes.set(t.id,t),this.inEdges.set(t.id,new Set),this.outEdges.set(t.id,new Set))}addNodes(t){t.forEach(t=>this.addNode(t))}getNode(t){return this.nodes.get(t)}hasNode(t){return this.nodes.has(t)}removeNode(t){if(!this.nodes.has(t))return;const e=Array.from(this.inEdges.get(t)||[]),r=Array.from(this.outEdges.get(t)||[]);e.forEach(t=>this.removeEdge(t)),r.forEach(t=>this.removeEdge(t)),this.nodes.delete(t),this.inEdges.delete(t),this.outEdges.delete(t),this.parentMap.forEach(e=>{e.delete(t)}),this.childrenMap.forEach(e=>{e.delete(t)})}getAllNodes(){return Array.from(this.nodes.values())}addEdge(t){if(!this.nodes.has(t.source)||!this.nodes.has(t.target))throw new Error(`Cannot add edge ${t.id}: source ${t.source} or target ${t.target} does not exist`);this.edges.set(t.id,t),this.outEdges.get(t.source).add(t.id),this.inEdges.get(t.target).add(t.id)}addEdges(t){t.forEach(t=>this.addEdge(t))}getEdge(t){return this.edges.get(t)}hasEdge(t){return this.edges.has(t)}removeEdge(t){var e,r;const n=this.edges.get(t);n&&(this.edges.delete(t),null===(e=this.outEdges.get(n.source))||void 0===e||e.delete(t),null===(r=this.inEdges.get(n.target))||void 0===r||r.delete(t))}getAllEdges(){return Array.from(this.edges.values())}updateEdgeData(t,e){const r=this.edges.get(t);r&&Object.assign(r.data,e)}updateNodeData(t,e){const r=this.nodes.get(t);r&&Object.assign(r.data,e)}getRelatedEdges(t,e="both"){const r=[];if("in"===e||"both"===e){const e=this.inEdges.get(t);e&&e.forEach(t=>{const e=this.edges.get(t);e&&r.push(e)})}if("out"===e||"both"===e){const e=this.outEdges.get(t);e&&e.forEach(t=>{const e=this.edges.get(t);e&&r.push(e)})}return r}getSuccessors(t){const e=this.outEdges.get(t);if(!e||0===e.size)return[];const r=[];return e.forEach(t=>{const e=this.edges.get(t);if(e){const t=this.nodes.get(e.target);t&&r.push(t)}}),r.length>0?r:[]}getPredecessors(t){const e=this.inEdges.get(t);if(!e||0===e.size)return[];const r=[];return e.forEach(t=>{const e=this.edges.get(t);if(e){const t=this.nodes.get(e.source);t&&r.push(t)}}),r.length>0?r:[]}getNeighbors(t){const e=[...this.getSuccessors(t)||[],...this.getPredecessors(t)||[]],r=Array.from(new Map(e.map(t=>[t.id,t])).values());return r.length>0?r:[]}attachTreeStructure(t){this.parentMap.has(t)||(this.parentMap.set(t,new Map),this.childrenMap.set(t,new Map))}addTree(t,e){var r,n;const o=e||(null!==(n=null===(r=this.options.tree)||void 0===r?void 0:r[0])&&void 0!==n?n:"default");this.hasTreeStructure(o)||this.attachTreeStructure(o);const i=Array.isArray(t)?t:[t],s=(t,e)=>{this.addNode({id:t.id,data:t.data}),void 0!==e&&this.setParent(t.id,e,o),t.children&&t.children.length>0&&t.children.forEach(e=>{s(e,t.id)})};i.forEach(t=>s(t))}hasTreeStructure(t){return this.parentMap.has(t)}setParent(t,e,r){var n,o,i;const s=r||(null!==(o=null===(n=this.options.tree)||void 0===n?void 0:n[0])&&void 0!==o?o:"default");this.parentMap.has(s)||this.attachTreeStructure(s);const a=this.parentMap.get(s),u=this.childrenMap.get(s),c=a.get(t);void 0!==c&&(null===(i=u.get(c))||void 0===i||i.delete(t)),a.set(t,e),u.has(e)||u.set(e,new Set),u.get(e).add(t)}getParent(t,e){var r,n;const o=e||(null!==(n=null===(r=this.options.tree)||void 0===r?void 0:r[0])&&void 0!==n?n:"default");this.parentMap.has(o)||this.attachTreeStructure(o);const i=this.parentMap.get(o);if(!i)return;const s=i.get(t);return void 0===s?null:this.nodes.get(s)}getChildren(t,e){var r,n;const o=e||(null!==(n=null===(r=this.options.tree)||void 0===r?void 0:r[0])&&void 0!==n?n:"default"),i=this.childrenMap.get(o);if(!i)return[];const s=i.get(t);return s?Array.from(s).map(t=>this.nodes.get(t)).filter(t=>void 0!==t):[]}getRoots(t){var e,r;const n=t||(null!==(r=null===(e=this.options.tree)||void 0===e?void 0:e[0])&&void 0!==r?r:"default"),o=this.parentMap.get(n),i=[];return this.nodes.forEach(t=>{o&&void 0!==o.get(t.id)||i.push(t)}),i}dfsTree(t,e){const r=[t],n=new Set;for(;r.length>0;){const t=r.pop();if(n.has(t))continue;const o=this.getNode(t);if(o){n.add(t);if(!0===e(o))continue;const i=this.getChildren(t);for(let t=i.length-1;t>=0;t--)n.has(i[t].id)||r.push(i[t].id)}}}}const Ct=(t,e)=>{if("next"!==t&&"prev"!==t)return e},It=t=>{t.prev.next=t.next,t.next.prev=t.prev,delete t.next,delete t.prev};let Rt=class{constructor(){const t={};t.prev=t,t.next=t.prev,this.shortcut=t}dequeue(){const t=this.shortcut,e=t.prev;if(e&&e!==t)return It(e),e}enqueue(t){const e=this.shortcut;t.prev&&t.next&&It(t),t.next=e.next,e.next.prev=t,e.next=t,t.prev=e}toString(){const t=[],e=this.shortcut;let r=e.prev;for(;r!==e;)t.push(JSON.stringify(r,Ct)),r=null==r?void 0:r.prev;return`[${t.join(", ")}]`}};class Tt extends Rt{}const Pt=()=>1,Ft=(t,e,r)=>{let n=[];const o=e[e.length-1],i=e[0];let s;for(;t.getAllNodes().length;){for(;s=i.dequeue();)Lt(t,e,r,s);for(;s=o.dequeue();)Lt(t,e,r,s);if(t.getAllNodes().length)for(let o=e.length-2;o>0;--o)if(s=e[o].dequeue(),s){n=n.concat(Lt(t,e,r,s,!0));break}}return n},Lt=(t,e,r,n,o)=>{var i,s;const a=[];return t.hasNode(n.v)&&(null===(i=t.getRelatedEdges(n.v,"in"))||void 0===i||i.forEach(n=>{const i=n.data.weight,s=t.getNode(n.source);o&&a.push({v:n.source,w:n.target,in:0,out:0}),void 0===s.data.out&&(s.data.out=0),s.data.out-=i,qt(e,r,Object.assign({v:s.id},s.data))}),null===(s=t.getRelatedEdges(n.v,"out"))||void 0===s||s.forEach(n=>{const o=n.data.weight,i=n.target,s=t.getNode(i);void 0===s.data.in&&(s.data.in=0),s.data.in-=o,qt(e,r,Object.assign({v:s.id},s.data))}),t.removeNode(n.v)),o?a:void 0},Dt=(t,e)=>{const r=new jt;let n=0,o=0;t.getAllNodes().forEach(t=>{r.addNode({id:t.id,data:{v:t.id,in:0,out:0}})}),t.getAllEdges().forEach(t=>{const i=r.getRelatedEdges(t.source,"out").find(e=>e.target===t.target),s=(null==e?void 0:e(t))||1;i?r.updateEdgeData(null==i?void 0:i.id,Object.assign(Object.assign({},i.data),{weight:i.data.weight+s})):r.addEdge({id:t.id,source:t.source,target:t.target,data:{weight:s}}),o=Math.max(o,r.getNode(t.source).data.out+=s),n=Math.max(n,r.getNode(t.target).data.in+=s)});const i=[],s=o+n+3;for(let t=0;t<s;t++)i.push(new Tt);const a=n+1;return r.getAllNodes().forEach(t=>{qt(i,a,Object.assign({v:t.id},r.getNode(t.id).data))}),{buckets:i,zeroIdx:a,graph:r}},qt=(t,e,r)=>{r.out?r.in?t[r.out-r.in+e].enqueue(r):t[t.length-1].enqueue(r):t[0].enqueue(r)},Bt=(t,e)=>{const r=((t,e)=>{var r;if(t.getAllNodes().length<=1)return[];const n=Dt(t,e||Pt);return 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