/**
 * The state of one open edit.
 *
 * A plain, mutable record rather than a class: it holds no behaviour, and
 * keeping it inert is what lets {@link EditorManager} remain the single place
 * where session transitions happen.
 *
 * @packageDocumentation
 */
import type { ColumnDef } from '../../types/column.types';
import type { RowNode } from '../../types/row.types';
import type { EditTrigger, ICellEditor } from '../types/cell-editor.types';
import type { MountedEditor } from '../services/editor-host';
/** Allocates the next session id. See {@link nextSessionId}. */
export declare function allocateSessionId(): number;
/** One open edit. */
export interface EditSession {
    /** Identity used to discard stale asynchronous work. */
    readonly id: number;
    readonly rowNode: RowNode;
    readonly colDef: ColumnDef;
    /** Column header, or field — the name used in validation messages and ARIA. */
    readonly label: string;
    /** What opened the session. */
    readonly trigger: EditTrigger;
    /** The value the cell held when the session opened. */
    readonly originalValue: unknown;
    /**
     * The most recent value the editor reported through `onValueChange`.
     *
     * Advisory only: {@link ICellEditor.getValue} is read at commit time and wins.
     * This exists so `validateOn: 'change'` has something to validate.
     */
    currentValue: unknown;
    /** The editor instance. `null` between resolution and a successful async `init`. */
    editor: ICellEditor | null;
    /** The mounted GUI. `null` until the editor is on screen. */
    mounted: MountedEditor | null;
    readonly cellEl: HTMLElement;
    readonly innerEl: HTMLElement;
    /** Teardown callbacks registered while the session was open. */
    readonly disposers: Array<() => void>;
    /** `true` once teardown has begun, so re-entrant commits are ignored. */
    closing: boolean;
    /** Pending debounce handle for `validateOn: 'change'`. */
    validationTimer: ReturnType<typeof setTimeout> | null;
}
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