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valid source ID."),this.types.get(e)}},{key:"getTargetType",value:function(e){return c(this.isTargetId(e),"Expected a valid target ID."),this.types.get(e)}},{key:"isSourceId",value:function(e){return _e(e)===r.SOURCE}},{key:"isTargetId",value:function(e){return _e(e)===r.TARGET}},{key:"removeSource",value:function(e){var t=this;c(this.getSource(e),"Expected an existing source."),this.store.dispatch(function(e){return{type:B,payload:{sourceId:e}}}(e)),je((function(){t.dragSources.delete(e),t.types.delete(e)}))}},{key:"removeTarget",value:function(e){c(this.getTarget(e),"Expected an existing target."),this.store.dispatch(function(e){return{type:W,payload:{targetId:e}}}(e)),this.dropTargets.delete(e),this.types.delete(e)}},{key:"pinSource",value:function(e){var t=this.getSource(e);c(t,"Expected an existing source."),this.pinnedSourceId=e,this.pinnedSource=t}},{key:"unpinSource",value:function(){c(this.pinnedSource,"No source is pinned at the time."),this.pinnedSourceId=null,this.pinnedSource=null}},{key:"addHandler",value:function(e,t,n){var o=Ae(e);return this.types.set(o,t),e===r.SOURCE?this.dragSources.set(o,n):e===r.TARGET&&this.dropTargets.set(o,n),o}}])&&xe(t.prototype,n),o&&xe(t,o),e}();function He(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}var Fe=function(){function e(){var t=this,r=arguments.length>0&&void 0!==arguments[0]&&arguments[0];!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,e),this.isSetUp=!1,this.handleRefCountChange=function(){var e=t.store.getState().refCount>0;t.backend&&(e&&!t.isSetUp?(t.backend.setup(),t.isSetUp=!0):!e&&t.isSetUp&&(t.backend.teardown(),t.isSetUp=!1))};var n=function(e){var t="undefined"!=typeof window&&window.__REDUX_DEVTOOLS_EXTENSION__;return a(ce,e&&t&&t({name:"dnd-core",instanceId:"dnd-core"}))}(r);this.store=n,this.monitor=new le(n,new $e(n)),n.subscribe(this.handleRefCountChange)}var t,r,n;return t=e,(r=[{key:"receiveBackend",value:function(e){this.backend=e}},{key:"getMonitor",value:function(){return this.monitor}},{key:"getBackend",value:function(){return this.backend}},{key:"getRegistry",value:function(){return this.monitor.registry}},{key:"getActions",value:function(){var e=this,t=this.store.dispatch,r=function(e){return{beginDrag:m(e),publishDragSource:C(e),hover:k(e),drop:A(e),endDrag:H(e)}}(this);return Object.keys(r).reduce((function(n,o){var i,a=r[o];return n[o]=(i=a,function(){for(var r=arguments.length,n=new Array(r),o=0;o<r;o++)n[o]=arguments[o];var a=i.apply(e,n);void 0!==a&&t(a)}),n}),{})}},{key:"dispatch",value:function(e){this.store.dispatch(e)}}])&&He(t.prototype,r),n&&He(t,n),e}();function Ue(e,t,r,n){var o=new Fe(n),i=e(o,t,r);return o.receiveBackend(i),o}var Le=t.createContext({dragDropManager:void 0});function Ve(e,t,r,n){return{dragDropManager:Ue(e,t,r,n)}}function Ge(e,t){return function(e){if(Array.isArray(e))return e}(e)||function(e,t){if(!(Symbol.iterator in Object(e)||"[object Arguments]"===Object.prototype.toString.call(e)))return;var r=[],n=!0,o=!1,i=void 0;try{for(var a,u=e[Symbol.iterator]();!(n=(a=u.next()).done)&&(r.push(a.value),!t||r.length!==t);n=!0);}catch(e){o=!0,i=e}finally{try{n||null==u.return||u.return()}finally{if(o)throw i}}return r}(e,t)||function(){throw new TypeError("Invalid attempt to destructure non-iterable instance")}()}function qe(e,t){if(null==e)return{};var r,n,o=function(e,t){if(null==e)return{};var r,n,o={},i=Object.keys(e);for(n=0;n<i.length;n++)r=i[n],t.indexOf(r)>=0||(o[r]=e[r]);return o}(e,t);if(Object.getOwnPropertySymbols){var i=Object.getOwnPropertySymbols(e);for(n=0;n<i.length;n++)r=i[n],t.indexOf(r)>=0||Object.prototype.propertyIsEnumerable.call(e,r)&&(o[r]=e[r])}return o}var ze=0,Be=t.memo((function(e){var r=e.children,n=Ge(function(e){if("manager"in e){return[{dragDropManager:e.manager},!1]}var t=function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:Ye(),r=arguments.length>2?arguments[2]:void 0,n=arguments.length>3?arguments[3]:void 0,o=t;o[We]||(o[We]=Ve(e,t,r,n));return o[We]}(e.backend,e.context,e.options,e.debugMode),r=!e.context;return[t,r]}(qe(e,["children"])),2),o=n[0],i=n[1];return t.useEffect((function(){return i&&ze++,function(){i&&(0===--ze&&(Ye()[We]=null))}}),[]),t.createElement(Le.Provider,{value:o},r)}));Be.displayName="DndProvider";var We=Symbol.for("__REACT_DND_CONTEXT_INSTANCE__");function Ye(){return"undefined"!=typeof global?global:window}var Ke=t.memo((function(e){var t=e.connect,r=e.src;if("undefined"!=typeof Image){var n=new Image;n.src=r,n.onload=function(){return t(n)}}return null}));Ke.displayName="DragPreviewImage";var Xe="undefined"!=typeof window?t.useLayoutEffect:t.useEffect;function Je(e,t,r,n){var o=r?r.call(n,e,t):void 0;if(void 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e=t.useContext(Le).dragDropManager;return c(null!=e,"Expected drag drop context"),e}function it(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}var at=!1,ut=!1,ct=function(){function e(t){!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,e),this.sourceId=null,this.internalMonitor=t.getMonitor()}var t,r,n;return t=e,(r=[{key:"receiveHandlerId",value:function(e){this.sourceId=e}},{key:"getHandlerId",value:function(){return this.sourceId}},{key:"canDrag",value:function(){c(!at,"You may not call monitor.canDrag() inside your canDrag() implementation. 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Please convert it to use a callback ref instead, or wrap it into a <span> or <div>. Read more: https://facebook.github.io/react/docs/more-about-refs.html#the-ref-callback-attribute"),n?t.cloneElement(e,{ref:function(e){st(n,e),st(r,e)}}):t.cloneElement(e,{ref:r})}function lt(e){if("string"!=typeof e.type){var t=e.type.displayName||e.type.name||"the component";throw new Error("Only native element nodes can now be passed to React DnD connectors."+"You can either wrap ".concat(t," into a <div>, or turn it into a ")+"drag source or a drop target itself.")}}function dt(e){var r={};return Object.keys(e).forEach((function(n){var o=e[n];if(n.endsWith("Ref"))r[n]=e[n];else{var i=function(e){return function(){var r=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null;if(!t.isValidElement(r)){var o=r;return e(o,n),o}var i=r;lt(i);var a=n?function(t){return e(t,n)}:e;return ft(i,a)}}(o);r[n]=function(){return i}}})),r}function pt(e){return(pt="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function gt(e){return null!==e&&"object"===pt(e)&&e.hasOwnProperty("current")}function ht(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}var yt=function(){function e(t){var r=this;!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,e),this.hooks=dt({dragSource:function(e,t){r.clearDragSource(),r.dragSourceOptions=t||null,gt(e)?r.dragSourceRef=e:r.dragSourceNode=e,r.reconnectDragSource()},dragPreview:function(e,t){r.clearDragPreview(),r.dragPreviewOptions=t||null,gt(e)?r.dragPreviewRef=e:r.dragPreviewNode=e,r.reconnectDragPreview()}}),this.handlerId=null,this.dragSourceRef=null,this.dragSourceOptionsInternal=null,this.dragPreviewRef=null,this.dragPreviewOptionsInternal=null,this.lastConnectedHandlerId=null,this.lastConnectedDragSource=null,this.lastConnectedDragSourceOptions=null,this.lastConnectedDragPreview=null,this.lastConnectedDragPreviewOptions=null,this.backend=t}var t,r,n;return t=e,(r=[{key:"receiveHandlerId",value:function(e){this.handlerId!==e&&(this.handlerId=e,this.reconnect())}},{key:"reconnect",value:function(){this.reconnectDragSource(),this.reconnectDragPreview()}},{key:"reconnectDragSource",value:function(){var e=this.dragSource,t=this.didHandlerIdChange()||this.didConnectedDragSourceChange()||this.didDragSourceOptionsChange();t&&this.disconnectDragSource(),this.handlerId&&(e?t&&(this.lastConnectedHandlerId=this.handlerId,this.lastConnectedDragSource=e,this.lastConnectedDragSourceOptions=this.dragSourceOptions,this.dragSourceUnsubscribe=this.backend.connectDragSource(this.handlerId,e,this.dragSourceOptions)):this.lastConnectedDragSource=e)}},{key:"reconnectDragPreview",value:function(){var e=this.dragPreview,t=this.didHandlerIdChange()||this.didConnectedDragPreviewChange()||this.didDragPreviewOptionsChange();this.handlerId?this.dragPreview&&t&&(this.lastConnectedHandlerId=this.handlerId,this.lastConnectedDragPreview=e,this.lastConnectedDragPreviewOptions=this.dragPreviewOptions,this.disconnectDragPreview(),this.dragPreviewUnsubscribe=this.backend.connectDragPreview(this.handlerId,e,this.dragPreviewOptions)):this.disconnectDragPreview()}},{key:"didHandlerIdChange",value:function(){return this.lastConnectedHandlerId!==this.handlerId}},{key:"didConnectedDragSourceChange",value:function(){return this.lastConnectedDragSource!==this.dragSource}},{key:"didConnectedDragPreviewChange",value:function(){return this.lastConnectedDragPreview!==this.dragPreview}},{key:"didDragSourceOptionsChange",value:function(){return!Je(this.lastConnectedDragSourceOptions,this.dragSourceOptions)}},{key:"didDragPreviewOptionsChange",value:function(){return!Je(this.lastConnectedDragPreviewOptions,this.dragPreviewOptions)}},{key:"disconnectDragSource",value:function(){this.dragSourceUnsubscribe&&(this.dragSourceUnsubscribe(),this.dragSourceUnsubscribe=void 0)}},{key:"disconnectDragPreview",value:function(){this.dragPreviewUnsubscribe&&(this.dragPreviewUnsubscribe(),this.dragPreviewUnsubscribe=void 0,this.dragPreviewNode=null,this.dragPreviewRef=null)}},{key:"clearDragSource",value:function(){this.dragSourceNode=null,this.dragSourceRef=null}},{key:"clearDragPreview",value:function(){this.dragPreviewNode=null,this.dragPreviewRef=null}},{key:"connectTarget",get:function(){return this.dragSource}},{key:"dragSourceOptions",get:function(){return this.dragSourceOptionsInternal},set:function(e){this.dragSourceOptionsInternal=e}},{key:"dragPreviewOptions",get:function(){return this.dragPreviewOptionsInternal},set:function(e){this.dragPreviewOptionsInternal=e}},{key:"dragSource",get:function(){return this.dragSourceNode||this.dragSourceRef&&this.dragSourceRef.current}},{key:"dragPreview",get:function(){return this.dragPreviewNode||this.dragPreviewRef&&this.dragPreviewRef.current}}])&&ht(t.prototype,r),n&&ht(t,n),e}();function vt(e,t){return function(e){if(Array.isArray(e))return e}(e)||function(e,t){if(!(Symbol.iterator in Object(e)||"[object 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t=this.dropTarget;this.handlerId&&(t?e&&(this.lastConnectedHandlerId=this.handlerId,this.lastConnectedDropTarget=t,this.lastConnectedDropTargetOptions=this.dropTargetOptions,this.unsubscribeDropTarget=this.backend.connectDropTarget(this.handlerId,t,this.dropTargetOptions)):this.lastConnectedDropTarget=t)}},{key:"receiveHandlerId",value:function(e){e!==this.handlerId&&(this.handlerId=e,this.reconnect())}},{key:"didHandlerIdChange",value:function(){return this.lastConnectedHandlerId!==this.handlerId}},{key:"didDropTargetChange",value:function(){return this.lastConnectedDropTarget!==this.dropTarget}},{key:"didOptionsChange",value:function(){return!Je(this.lastConnectedDropTargetOptions,this.dropTargetOptions)}},{key:"disconnectDropTarget",value:function(){this.unsubscribeDropTarget&&(this.unsubscribeDropTarget(),this.unsubscribeDropTarget=void 0)}},{key:"clearDropTarget",value:function(){this.dropTargetRef=null,this.dropTargetNode=null}},{key:"connectTarget",get:function(){return 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Read more: http://react-dnd.github.io/react-dnd/docs/api/drag-source",e),e}},this.spec=t,this.monitor=r,this.ref=n}var t,r,n;return t=e,(r=[{key:"receiveProps",value:function(e){this.props=e}},{key:"canDrag",value:function(){return!!this.props&&(!this.spec.canDrag||this.spec.canDrag(this.props,this.monitor))}},{key:"isDragging",value:function(e,t){return!!this.props&&(this.spec.isDragging?this.spec.isDragging(this.props,this.monitor):t===e.getSourceId())}},{key:"endDrag",value:function(){this.props&&this.spec.endDrag&&this.spec.endDrag(this.props,this.monitor,xt(this.ref))}}])&&pr(t.prototype,r),n&&pr(t,n),e}();function vr(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}var br=["canDrop","hover","drop"],mr=function(){function e(t,r,n){!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,e),this.props=null,this.spec=t,this.monitor=r,this.ref=n}var t,r,n;return t=e,(r=[{key:"receiveProps",value:function(e){this.props=e}},{key:"receiveMonitor",value:function(e){this.monitor=e}},{key:"canDrop",value:function(){return!this.spec.canDrop||this.spec.canDrop(this.props,this.monitor)}},{key:"hover",value:function(){this.spec.hover&&this.spec.hover(this.props,this.monitor,xt(this.ref))}},{key:"drop",value:function(){if(this.spec.drop){var e=this.spec.drop(this.props,this.monitor,this.ref.current);return"production"!=="production"&&c(void 0===e||Rt(e),"drop() must either return undefined, or an object that represents the drop result. Instead received %s. Read more: http://react-dnd.github.io/react-dnd/docs/api/drop-target",e),e}}}])&&vr(t.prototype,r),n&&vr(t,n),e}();function Or(e){return(Or="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function Sr(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}function wr(e,t){return!t||"object"!==Or(t)&&"function"!=typeof t?function(e){if(void 0===e)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return e}(e):t}function Dr(e){return(Dr=Object.setPrototypeOf?Object.getPrototypeOf:function(e){return e.__proto__||Object.getPrototypeOf(e)})(e)}function Cr(e,t){return(Cr=Object.setPrototypeOf||function(e,t){return e.__proto__=t,e})(e,t)}e.DndContext=Le,e.DndProvider=Be,e.DragLayer=function(e){var r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};return At("DragLayer","collect[, options]",e,r),c("function"==typeof e,'Expected "collect" provided as the first argument to DragLayer to be a function that collects props to inject into the component. ',"Instead, received %s. Read more: http://react-dnd.github.io/react-dnd/docs/api/drag-layer",e),c(Rt(r),'Expected "options" provided as the second argument to DragLayer to be a plain object when specified. Instead, received %s. Read more: http://react-dnd.github.io/react-dnd/docs/api/drag-layer',r),function(n){var o=n,i=r.arePropsEqual,a=void 0===i?Je:i,u=o.displayName||o.name||"Component",s=function(r){function n(){var e;return function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,n),(e=wr(this,Dr(n).apply(this,arguments))).isCurrentlyMounted=!1,e.ref=t.createRef(),e.handleChange=function(){if(e.isCurrentlyMounted){var t=e.getCurrentState();Je(t,e.state)||e.setState(t)}},e}var i,s,f;return function(e,t){if("function"!=typeof t&&null!==t)throw new TypeError("Super expression must either be null or a function");e.prototype=Object.create(t&&t.prototype,{constructor:{value:e,writable:!0,configurable:!0}}),t&&Cr(e,t)}(n,r),i=n,(s=[{key:"getDecoratedComponentInstance",value:function(){return c(this.ref.current,"In order to access an instance of the decorated component, it must either be a class component or use React.forwardRef()"),this.ref.current}},{key:"shouldComponentUpdate",value:function(e,t){return!a(e,this.props)||!Je(t,this.state)}},{key:"componentDidMount",value:function(){this.isCurrentlyMounted=!0,this.handleChange()}},{key:"componentWillUnmount",value:function(){this.isCurrentlyMounted=!1,this.unsubscribeFromOffsetChange&&(this.unsubscribeFromOffsetChange(),this.unsubscribeFromOffsetChange=void 0),this.unsubscribeFromStateChange&&(this.unsubscribeFromStateChange(),this.unsubscribeFromStateChange=void 0)}},{key:"render",value:function(){var e=this;return t.createElement(Le.Consumer,null,(function(r){var n=r.dragDropManager;return void 0===n?null:(e.receiveDragDropManager(n),e.isCurrentlyMounted?t.createElement(o,Object.assign({},e.props,e.state,{ref:Mt(o)?e.ref:null})):null)}))}},{key:"receiveDragDropManager",value:function(e){if(void 0===this.manager){this.manager=e,c("object"===Or(e),"Could not find the drag and drop manager in the context of %s. Make sure to render a DndProvider component in your top-level component. Read more: http://react-dnd.github.io/react-dnd/docs/troubleshooting#could-not-find-the-drag-and-drop-manager-in-the-context",u,u);var t=this.manager.getMonitor();this.unsubscribeFromOffsetChange=t.subscribeToOffsetChange(this.handleChange),this.unsubscribeFromStateChange=t.subscribeToStateChange(this.handleChange)}}},{key:"getCurrentState",value:function(){if(!this.manager)return{};var t=this.manager.getMonitor();return e(t,this.props)}}])&&Sr(i.prototype,s),f&&Sr(i,f),n}(t.Component);return s.displayName="DragLayer(".concat(u,")"),s.DecoratedComponent=n,Jt(s,n)}},e.DragPreviewImage=Ke,e.DragSource=function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:{};At("DragSource","type, spec, collect[, options]",e,t,r,n);var o=e;"function"!=typeof e&&(c(dr(e),'Expected "type" provided as the first argument to DragSource to be a string, or a function that returns a string given the current props. Instead, received %s. Read more: http://react-dnd.github.io/react-dnd/docs/api/drag-source',e),o=function(){return e}),c(Rt(t),'Expected "spec" provided as the second argument to DragSource to be a plain object. Instead, received %s. Read more: http://react-dnd.github.io/react-dnd/docs/api/drag-source',t);var i=function(e){return Object.keys(e).forEach((function(t){c(gr.indexOf(t)>-1,'Expected the drag source specification to only have some of the following keys: %s. Instead received a specification with an unexpected "%s" key. Read more: http://react-dnd.github.io/react-dnd/docs/api/drag-source',gr.join(", "),t),c("function"==typeof e[t],"Expected %s in the drag source specification to be a function. Instead received a specification with %s: %s. Read more: http://react-dnd.github.io/react-dnd/docs/api/drag-source",t,t,e[t])})),hr.forEach((function(t){c("function"==typeof e[t],"Expected %s in the drag source specification to be a function. Instead received a specification with %s: %s. Read more: http://react-dnd.github.io/react-dnd/docs/api/drag-source",t,t,e[t])})),function(t,r){return new yr(e,t,r)}}(t);return c("function"==typeof r,'Expected "collect" provided as the third argument to DragSource to be a function that returns a plain object of props to inject. Instead, received %s. Read more: http://react-dnd.github.io/react-dnd/docs/api/drag-source',r),c(Rt(n),'Expected "options" provided as the fourth argument to DragSource to be a plain object when specified. Instead, received %s. Read more: http://react-dnd.github.io/react-dnd/docs/api/drag-source',r),function(e){return fr({containerDisplayName:"DragSource",createHandler:i,registerHandler:nt,createConnector:function(e){return new yt(e)},createMonitor:function(e){return new ct(e)},DecoratedComponent:e,getType:o,collect:r,options:n})}},e.DropTarget=function(e,t,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:{};At("DropTarget","type, spec, collect[, options]",e,t,r,n);var o=e;"function"!=typeof e&&(c(dr(e,!0),'Expected "type" provided as the first argument to DropTarget to be a string, an array of strings, or a function that returns either given the current props. Instead, received %s. Read more: http://react-dnd.github.io/react-dnd/docs/api/drop-target',e),o=function(){return e}),c(Rt(t),'Expected "spec" provided as the second argument to DropTarget to be a plain object. Instead, received %s. Read more: http://react-dnd.github.io/react-dnd/docs/api/drop-target',t);var i=function(e){return Object.keys(e).forEach((function(t){c(br.indexOf(t)>-1,'Expected the drop target specification to only have some of the following keys: %s. Instead received a specification with an unexpected "%s" key. Read more: http://react-dnd.github.io/react-dnd/docs/api/drop-target',br.join(", "),t),c("function"==typeof e[t],"Expected %s in the drop target specification to be a function. Instead received a specification with %s: %s. Read more: http://react-dnd.github.io/react-dnd/docs/api/drop-target",t,t,e[t])})),function(t,r){return new mr(e,t,r)}}(t);return c("function"==typeof r,'Expected "collect" provided as the third argument to DropTarget to be a function that returns a plain object of props to inject. Instead, received %s. Read more: http://react-dnd.github.io/react-dnd/docs/api/drop-target',r),c(Rt(n),'Expected "options" provided as the fourth argument to DropTarget to be a plain object when specified. Instead, received %s. Read more: http://react-dnd.github.io/react-dnd/docs/api/drop-target',r),function(e){return fr({containerDisplayName:"DropTarget",createHandler:i,registerHandler:rt,createMonitor:function(e){return new Ct(e)},createConnector:function(e){return new St(e)},DecoratedComponent:e,getType:o,collect:r,options:n})}},e.createDndContext=Ve,e.useDrag=function(e){var r=t.useRef(e);r.current=e,c(null!=e.item,"item must be defined"),c(null!=e.item.type,"item type must be defined");var n,o=mt((n=ot(),[t.useMemo((function(){return new ct(n)}),[n]),t.useMemo((function(){return new yt(n.getBackend())}),[n])]),2),i=o[0],a=o[1];!function(e,r,n){var o=ot(),i=t.useMemo((function(){return{beginDrag:function(){var t=e.current,n=t.begin,o=t.item;if(n){var i=n(r);return c(null==i||"object"===bt(i),"dragSpec.begin() must either return an object, undefined, or null"),i||o||{}}return o||{}},canDrag:function(){return"boolean"==typeof e.current.canDrag?e.current.canDrag:"function"!=typeof e.current.canDrag||e.current.canDrag(r)},isDragging:function(t,n){var o=e.current.isDragging;return o?o(r):n===t.getSourceId()},endDrag:function(){var t=e.current.end;t&&t(r.getItem(),r),n.reconnect()}}}),[]);Xe((function(){var t=vt(nt(e.current.item.type,i,o),2),a=t[0],u=t[1];return r.receiveHandlerId(a),n.receiveHandlerId(a),u}),[])}(r,i,a);var u=tt(i,r.current.collect||function(){return{}},(function(){return a.reconnect()})),s=t.useMemo((function(){return a.hooks.dragSource()}),[a]),f=t.useMemo((function(){return a.hooks.dragPreview()}),[a]);return Xe((function(){a.dragSourceOptions=r.current.options||null,a.reconnect()}),[a]),Xe((function(){a.dragPreviewOptions=r.current.previewOptions||null,a.reconnect()}),[a]),[u,s,f]},e.useDragLayer=function(e){var r=ot().getMonitor(),n=Tt(Ze(r,e),2),o=n[0],i=n[1];return t.useEffect((function(){return r.subscribeToOffsetChange(i)})),t.useEffect((function(){return r.subscribeToStateChange(i)})),o},e.useDrop=function(e){var r=t.useRef(e);r.current=e,c(null!=e.accept,"accept must be defined");var n,o=kt((n=ot(),[t.useMemo((function(){return new Ct(n)}),[n]),t.useMemo((function(){return new St(n.getBackend())}),[n])]),2),i=o[0],a=o[1];!function(e,r,n){var o=ot(),i=t.useMemo((function(){return{canDrop:function(){var t=e.current.canDrop;return!t||t(r.getItem(),r)},hover:function(){var t=e.current.hover;t&&t(r.getItem(),r)},drop:function(){var t=e.current.drop;if(t)return t(r.getItem(),r)}}}),[r]);Xe((function(){var t=It(rt(e.current.accept,i,o),2),a=t[0],u=t[1];return r.receiveHandlerId(a),n.receiveHandlerId(a),u}),[r,n])}(r,i,a);var u=tt(i,r.current.collect||function(){return{}},(function(){return a.reconnect()})),s=t.useMemo((function(){return a.hooks.dropTarget()}),[a]);return Xe((function(){a.dropTargetOptions=e.options||null,a.reconnect()}),[e.options]),[u,s]},Object.defineProperty(e,"__esModule",{value:!0})}));