import { IExecution } from '@foblex/mediator';
import { FSingleSelectRequest } from './f-single-select.request';
import * as i0 from "@angular/core";
/**
 * Implements the functionality for selecting elements in a graphical interface.
 * This class handles both single and multi-selection, updating the selection state
 * of elements and managing related data.
 *
 * Logic flow:
 * 1. **Validate the selection event**:
 *    - The event is considered valid if it occurs within the flow boundaries
 *      and there are no active draggable data operations.
 *
 * 2. **Determine the target element to select**:
 *    - The target element is determined based on the event’s target.
 *      It can be a node, a group of nodes, or a connection.
 *    - If no element is found, the current selection state is cleared.
 *
 * 3. **Update element layers**:
 *    - If an element is found, its visual layer and the layers of its child elements are updated.
 *
 * 4. **Single or multi-selection**:
 *    - If the event meets the criteria for multi-selection (e.g., a modifier key is pressed),
 *      multi-selection logic is applied.
 *    - Otherwise, single-selection logic is used.
 *
 * 5. **Single-selection logic**:
 *    - If the element is not selected and can be selected:
 *      - Clear the selection of all other elements.
 *      - Mark the current element as selected.
 *    - If the element cannot be selected, the current selection is cleared.
 *
 * 6. **Multi-selection logic**:
 *    - If the element is already selected, it is removed from the selection.
 *    - If the element is not selected and can be selected, it is added to the selection.
 *
 * 7. **Manage selection state**:
 *    - Adding or removing an element from the selection triggers the corresponding methods.
 *    - Selection state is tracked in the shared context for future use.
 */
export declare class FSingleSelectExecution implements IExecution<FSingleSelectRequest, void> {
    private readonly _fMediator;
    private readonly _fComponentsStore;
    private readonly _fDraggableDataContext;
    handle(request: FSingleSelectRequest): void;
    private _isValid;
    private _isEventInFlowBounds;
    private _getItemToSelect;
    private _getNodeOrGroup;
    private _getConnection;
    private _updateItemAndChildrenLayers;
    private _isMultiSelect;
    private _singleSelect;
    private _isItemNotSelectedAndSelectable;
    private _clearSelection;
    private _multiSelect;
    private _deselectItem;
    private _removeItemFromSelectedItems;
    private _selectItem;
    static ɵfac: i0.ɵɵFactoryDeclaration<FSingleSelectExecution, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<FSingleSelectExecution>;
}