import { BasePlugin } from '../types/base-plugin';
export declare class KeyDownPlugin extends BasePlugin {
    name: string;
    version: string;
    private static readonly MOVE_STEP;
    private static readonly MOVE_STEP_FAST;
    protected onInstall(): void;
    protected onUninstall(): void;
    private handleKeyDown;
    private handleMoveLeft;
    private handleMoveRight;
    private handleMoveUp;
    private handleMoveDown;
    private getStep;
    private moveSelection;
    private isInputFocused;
    /**
     * 判断当前焦点是否落在画布舞台容器内（由 StageView 在 onMounted 写入 host.stageState.wrapperEl）。
     * 用于 Ctrl+Z / Ctrl+Y / Delete 等影响画布历史/选中元素的快捷键守卫：
     * 焦点不在画布时应让位给输入框/浏览器原生行为。
     */
    private isCanvasFocused;
    private copySelection;
    private pasteFromClipboard;
    private deleteSelectionElement;
}
declare module '../types' {
    interface PluginMap {
        'keydown-plugin': KeyDownPlugin;
    }
}