import { type OnDestroy } from '@angular/core';
import { Subject } from 'rxjs';
import { type DfConnectorData, type DfDataConnection, type DfDataConnector } from '../../../ng-draw-flow.interfaces';
import * as i0 from "@angular/core";
export declare class DraftConnectionService implements OnDestroy {
    private readonly document;
    private readonly root;
    private readonly panZoomService;
    private readonly coordinatesService;
    private readonly options;
    private readonly interactionState;
    private readonly activeConnectorSignal;
    private readonly lastConnectionCreatedSignal;
    private sourceConnector;
    private readonly connectionCancelled$;
    private readonly connectionStart$;
    protected readonly destroy$: Subject<void>;
    source: import("@angular/core").WritableSignal<DfConnectorData>;
    target: import("@angular/core").WritableSignal<DfConnectorData>;
    readonly isConnectionCreating: import("@angular/core").WritableSignal<boolean>;
    readonly isConnectionCreating$: import("rxjs").Observable<boolean>;
    readonly activeConnector: import("@angular/core").Signal<DfDataConnector | null>;
    readonly lastConnectionCreated: import("@angular/core").Signal<DfDataConnection | null>;
    readonly connectionCreated$: Subject<DfDataConnection>;
    constructor();
    ngOnDestroy(): void;
    startConnection(connector: DfDataConnector, event?: PointerEvent): void;
    private connectionSubscription;
    private onDragStart;
    private onDragMove;
    private getTargetPosition;
    private onDragEnd;
    private matchesPointer;
    private cancelConnection;
    private connectionsCreatable;
    private resetConnectors;
    static ɵfac: i0.ɵɵFactoryDeclaration<DraftConnectionService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<DraftConnectionService>;
}