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e.resizing&&(r.resizing=e.resizing),r.expandParent&&Ki(t,r);break;case"remove":return t}return t.push(r),t}),n)}function qi(e,t){return ji(e,t)}function Ui(e,t){return ji(e,t)}const Gi=(e,t)=>({id:e,type:"select",selected:t});function Qi(e,t){return e.reduce(((e,n)=>{const o=t.includes(n.id);return!n.selected&&o?(n.selected=!0,e.push(Gi(n.id,!0))):n.selected&&!o&&(n.selected=!1,e.push(Gi(n.id,!1))),e}),[])}const Ji=(e,t)=>n=>{n.target===t.current&&e?.(n)},ea=e=>({userSelectionActive:e.userSelectionActive,elementsSelectable:e.elementsSelectable,dragging:e.paneDragging}),ta=t.memo((({isSelecting:n,selectionMode:r=e.SelectionMode.Full,panOnDrag:i,onSelectionStart:a,onSelectionEnd:s,onPaneClick:l,onPaneContextMenu:c,onPaneScroll:u,onPaneMouseEnter:d,onPaneMouseMove:h,onPaneMouseLeave:f,children:g})=>{const p=t.useRef(null),m=Po(),y=t.useRef(0),v=t.useRef(0),w=t.useRef(),{userSelectionActive:S,elementsSelectable:x,dragging:E}=ko(ea,b),C=()=>{m.setState({userSelectionActive:!1,userSelectionRect:null}),y.current=0,v.current=0},_=e=>{l?.(e),m.getState().resetSelectedElements(),m.setState({nodesSelectionActive:!1})},N=u?e=>u(e):void 0,M=x&&(n||S);return t.createElement("div",{className:o(["react-flow__pane",{dragging:E,selection:n}]),onClick:M?void 0:Ji(_,p),onContextMenu:Ji((e=>{Array.isArray(i)&&i?.includes(2)?e.preventDefault():c?.(e)}),p),onWheel:Ji(N,p),onMouseEnter:M?void 0:d,onMouseDown:M?e=>{const{resetSelectedElements:t,domNode:o}=m.getState();if(w.current=o?.getBoundingClientRect(),!x||!n||0!==e.button||e.target!==p.current||!w.current)return;const{x:r,y:i}=Go(e,w.current);t(),m.setState({userSelectionRect:{width:0,height:0,startX:r,startY:i,x:r,y:i}}),a?.(e)}:void 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n=e.parentNode||e.parentId;if(!n)return!1;const o=t.get(n);return!!o&&(!!o.selected||na(o,t))}function oa(e,t,n){let o=e;do{if(o?.matches(t))return!0;if(o===n.current)return!1;o=o.parentElement}while(o);return!1}function ra(e,t,n,o){return Array.from(e.values()).filter((n=>(n.selected||n.id===o)&&(!n.parentNode||n.parentId||!na(n,e))&&(n.draggable||t&&void 0===n.draggable))).map((e=>({id:e.id,position:e.position||{x:0,y:0},positionAbsolute:e.positionAbsolute||{x:0,y:0},distance:{x:n.x-(e.positionAbsolute?.x??0),y:n.y-(e.positionAbsolute?.y??0)},delta:{x:0,y:0},extent:e.extent,parentNode:e.parentNode||e.parentId,parentId:e.parentNode||e.parentId,width:e.width,height:e.height,expandParent:e.expandParent})))}function ia(e,t,n,o,r=[0,0],i){const a=function(e,t){return t&&"parent"!==t?[t[0],[t[1][0]-(e.width||0),t[1][1]-(e.height||0)]]:t}(e,e.extent||o);let s=a;const l=e.parentNode||e.parentId;if("parent"!==e.extent||e.expandParent){if(e.extent&&l&&"parent"!==e.extent){const t=n.get(l),{x:o,y:i}=Dr(t,r).positionAbsolute;s=[[e.extent[0][0]+o,e.extent[0][1]+i],[e.extent[1][0]+o,e.extent[1][1]+i]]}}else if(l&&e.width&&e.height){const t=n.get(l),{x:o,y:i}=Dr(t,r).positionAbsolute;s=t&&Zo(o)&&Zo(i)&&Zo(t.width)&&Zo(t.height)?[[o+e.width*r[0],i+e.height*r[1]],[o+t.width-e.width+e.width*r[0],i+t.height-e.height+e.height*r[1]]]:s}else i?.("005",So()),s=a;let c={x:0,y:0};if(l){const e=n.get(l);c=Dr(e,r).positionAbsolute}const u=s&&"parent"!==s?Bo(t,s):t;return{position:{x:u.x-c.x,y:u.y-c.y},positionAbsolute:u}}function aa({nodeId:e,dragItems:t,nodeInternals:n}){const o=t.map((e=>({...n.get(e.id),position:e.position,positionAbsolute:e.positionAbsolute})));return[e?o.find((t=>t.id===e)):o[0],o]}ta.displayName="Pane";const sa=(e,t,n,o)=>{const r=t.querySelectorAll(e);if(!r||!r.length)return null;const i=Array.from(r),a=t.getBoundingClientRect(),s=a.width*o[0],l=a.height*o[1];return i.map((e=>{const t=e.getBoundingClientRect();return{id:e.getAttribute("data-handleid"),position:e.getAttribute("data-handlepos"),x:(t.left-a.left-s)/n,y:(t.top-a.top-l)/n,...zo(e)}}))};function la(e,t,n){return void 0===n?n:o=>{const r=t().nodeInternals.get(e);r&&n(o,{...r})}}function ca({id:e,store:t,unselect:n=!1,nodeRef:o}){const{addSelectedNodes:r,unselectNodesAndEdges:i,multiSelectionActive:a,nodeInternals:s,onError:l}=t.getState(),c=s.get(e);c?(t.setState({nodesSelectionActive:!1}),c.selected?(n||c.selected&&a)&&(i({nodes:[c],edges:[]}),requestAnimationFrame((()=>o?.current?.blur()))):r([e])):l?.("012",No(e))}function ua(){const e=Po(),n=t.useCallback((({sourceEvent:t})=>{const{transform:n,snapGrid:o,snapToGrid:r}=e.getState(),i=t.touches?t.touches[0].clientX:t.clientX,a=t.touches?t.touches[0].clientY:t.clientY,s={x:(i-n[0])/n[2],y:(a-n[1])/n[2]};return{xSnapped:r?o[0]*Math.round(s.x/o[0]):s.x,ySnapped:r?o[1]*Math.round(s.y/o[1]):s.y,...s}}),[]);return n}function 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i=[[s[0][0],s[0][1]],[s[1][0],s[1][1]]];d.current.length>1&&s&&!o.extent&&(i[0][0]=o.positionAbsolute.x-v.x+s[0][0],i[1][0]=o.positionAbsolute.x+(o.width??0)-v.x2+s[1][0],i[0][1]=o.positionAbsolute.y-v.y+s[0][1],i[1][1]=o.positionAbsolute.y+(o.height??0)-v.y2+s[1][1]);const a=ia(o,r,n,i,g,p);return y=y||o.position.x!==a.position.x||o.position.y!==a.position.y,o.position=a.position,o.positionAbsolute=a.positionAbsolute,o})),!y)return;a(d.current,!0,!0),u(!0);const b=i?o:da(r);if(b&&m.current){const[e,t]=aa({nodeId:i,dragItems:d.current,nodeInternals:n});b(m.current,e,t)}},S=()=>{if(!g.current)return;const[e,t]=To(p.current,g.current);if(0!==e||0!==t){const{transform:n,panBy:o}=l.getState();h.current.x=(h.current.x??0)-e/n[2],h.current.y=(h.current.y??0)-t/n[2],o({x:e,y:t})&&c(h.current)}f.current=requestAnimationFrame(S)},x=t=>{const{nodeInternals:n,multiSelectionActive:o,nodesDraggable:r,unselectNodesAndEdges:c,onNodeDragStart:u,onSelectionDragStart:f}=l.getState();v.current=!0;const 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n=t.xSnapped-(h?.current?.x??0),r=t.ySnapped-(h?.current?.y??0);Math.sqrt(n*n+r*r)>o&&x(e)}(h.current.x!==t.xSnapped||h.current.y!==t.ySnapped)&&d.current&&v.current&&(m.current=e.sourceEvent,p.current=Go(e.sourceEvent,g.current),c(t))}})).on("end",(e=>{if(v.current&&!b.current&&(u(!1),y.current=!1,v.current=!1,cancelAnimationFrame(f.current),d.current)){const{updateNodePositions:t,nodeInternals:n,onNodeDragStop:o,onSelectionDragStop:r}=l.getState(),a=i?o:da(r);if(t(d.current,!1,!1),a){const[t,o]=aa({nodeId:i,dragItems:d.current,nodeInternals:n});a(e.sourceEvent,t,o)}}})).filter((t=>{const n=t.target;return!t.button&&(!o||!oa(n,`.${o}`,e))&&(!r||oa(n,r,e))}));return t.call(n),()=>{t.on(".drag",null)}}t.on(".drag",null)}}),[e,n,o,r,a,l,i,s,w]),c}function fa(){const e=Po();return t.useCallback((t=>{const{nodeInternals:n,nodeExtent:o,updateNodePositions:r,getNodes:i,snapToGrid:a,snapGrid:s,onError:l,nodesDraggable:c}=e.getState(),u=i().filter((e=>e.selected&&(e.draggable||c&&void 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T=Po(),V=t.useRef(null),H=t.useRef(null),L=t.useRef(C),X=t.useRef(_),Y=t.useRef(r),F=w||b||d||h||f||g,W=fa(),Z=la(n,T.getState,h),K=la(n,T.getState,f),j=la(n,T.getState,g),q=la(n,T.getState,p),U=la(n,T.getState,m);t.useEffect((()=>()=>{H.current&&(M?.unobserve(H.current),H.current=null)}),[]),t.useEffect((()=>{if(V.current&&!N){const e=V.current;I&&$&&H.current===e||(H.current&&M?.unobserve(H.current),M?.observe(e),H.current=e)}}),[N,I,$]),t.useEffect((()=>{const e=Y.current!==r,t=L.current!==C,o=X.current!==_;V.current&&(e||t||o)&&(e&&(Y.current=r),t&&(L.current=C),o&&(X.current=_),T.getState().updateNodeDimensions([{id:n,nodeElement:V.current,forceUpdate:!0}]))}),[n,r,C,_]);const G=ha({nodeRef:V,disabled:N||!b,noDragClassName:O,handleSelector:k,nodeId:n,isSelectable:w,selectNodesOnDrag:E});return 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n=i.getState().getNodes().filter((e=>e.selected));e(t,n)}:void 0;return t.createElement("div",{className:o(["react-flow__nodesselection","react-flow__container",n]),style:{transform:u}},t.createElement("div",{ref:f,className:"react-flow__nodesselection-rect",onContextMenu:g,tabIndex:r?void 0:-1,onKeyDown:r?void 0:e=>{Object.prototype.hasOwnProperty.call(ga,e.key)&&h({x:ga[e.key].x,y:ga[e.key].y,isShiftPressed:e.shiftKey})},style:{width:a,height:s,top:c,left:l}}))}));const va=e=>e.nodesSelectionActive,ba=({children:e,onPaneClick:n,onPaneMouseEnter:o,onPaneMouseMove:r,onPaneMouseLeave:i,onPaneContextMenu:a,onPaneScroll:s,deleteKeyCode:l,onMove:c,onMoveStart:u,onMoveEnd:d,selectionKeyCode:h,selectionOnDrag:f,selectionMode:g,onSelectionStart:p,onSelectionEnd:m,multiSelectionKeyCode:y,panActivationKeyCode:v,zoomActivationKeyCode:b,elementsSelectable:w,zoomOnScroll:S,zoomOnPinch:x,panOnScroll:E,panOnScrollSpeed:C,panOnScrollMode:_,zoomOnDoubleClick:N,panOnDrag:M,defaultViewport:k,translateExtent:P,minZoom:A,maxZoom:O,preventScrolling:R,onSelectionContextMenu:I,noWheelClassName:z,noPanClassName:D,disableKeyboardA11y:B})=>{const $=ko(va),T=Ei(h),V=Ei(v),H=V||M,L=V||E,X=T||f&&!0!==H;return(({deleteKeyCode:e,multiSelectionKeyCode:n})=>{const 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