import type { EditorOptions, IEditor, PluginEvent, PluginWithState, UndoPluginState } from 'roosterjs-editor-types';
/**
 * @internal
 * Provides snapshot based undo service for Editor
 */
export default class UndoPlugin implements PluginWithState<UndoPluginState> {
    private editor;
    private lastKeyPress;
    private state;
    /**
     * Construct a new instance of UndoPlugin
     * @param options The wrapper of the state object
     */
    constructor(options: EditorOptions);
    /**
     * Get a friendly name of  this plugin
     */
    getName(): string;
    /**
     * Initialize this plugin. This should only be called from Editor
     * @param editor Editor instance
     */
    initialize(editor: IEditor): void;
    /**
     * Dispose this plugin
     */
    dispose(): void;
    /**
     * Get plugin state object
     */
    getState(): UndoPluginState;
    /**
     * Check if the plugin should handle the given event exclusively.
     * @param event The event to check
     */
    willHandleEventExclusively(event: PluginEvent): boolean;
    /**
     * Handle events triggered from editor
     * @param event PluginEvent object
     */
    onPluginEvent(event: PluginEvent): void;
    private onKeyDown;
    private onKeyPress;
    private onBeforeKeyboardEditing;
    private onContentChanged;
    private clearRedoForInput;
    private canUndoAutoComplete;
    private addUndoSnapshot;
}