import { Component, ComponentPublicInstance, Slots, VNode, VNodeTypes } from 'vue';
export declare enum ShapeFlags {
    ELEMENT = 1,
    FUNCTIONAL_COMPONENT = 2,
    STATEFUL_COMPONENT = 4,
    TEXT_CHILDREN = 8,
    ARRAY_CHILDREN = 16,
    SLOTS_CHILDREN = 32,
    TELEPORT = 64,
    SUSPENSE = 128,
    COMPONENT_SHOULD_KEEP_ALIVE = 256,
    COMPONENT_KEPT_ALIVE = 512,
    COMPONENT = 6
}
/**
 * 获取dom元素
 *
 * @param selector 选择器字符串
 * @param parent 父级元素
 */
export declare function getElement<T extends Element>(selector: string, parent?: Element | Document): T | null;
/**
 * 获取所有dom元素
 *
 * @param selector 选择器字符串
 * @param parent 父级元素
 */
export declare function getElementAll<T extends Element>(selector: string, parent?: Element | Document): T[];
/** 判断是否是组件实例 */
export declare const isComponentInstance: (value: any) => value is ComponentPublicInstance;
/** 是否存在多个子节点 */
export declare const isArrayChildren: (vn: VNode, _children: VNode["children"]) => _children is VNode[];
/** 是否是元素节点 */
export declare const isElement: (vn: VNode) => boolean;
/** 判断是否为组件 */
export declare const isComponent: (vn: VNode, _type?: VNodeTypes) => _type is Component;
export declare const isSlotsChildren: (vn: VNode, _children: VNode["children"]) => _children is Slots;
/** 子节点是否是文本节点 */
export declare const isText: (vn: VNode, _children: VNode["children"]) => _children is string;
/**
 * 判断是否是名为 name 的组件
 *
 * @param child 虚拟 dom 节点
 * @param name 组件名
 */
export declare const isNamedComponent: (child: VNode, name: string) => boolean;
/** 判断子节点是否是文本节点 */
export declare const isTextChildren: (child: VNode, _children: VNode["children"]) => _children is string;
/**
 * 获取第一个组件实例
 *
 * @param children 组件内部节点
 */
export declare const getFirstComponent: (children: VNode[] | undefined) => VNode | undefined;
/**
 * 判断元素是否在容器范围内
 *
 * @param elRect 元素DOMRect
 * @param containerRect 容器DOMRect
 * @param direction 判定方向，默认水平方向
 */
export declare function isElementInContainerView(elRect: DOMRect | undefined, containerRect: DOMRect | undefined, direction?: 'horizontal' | 'vertical'): boolean | undefined;
/**
 * 判断元素是否为 input 或 textarea 元素
 *
 * @param el 元素
 */
export declare function isInputElement(el: Element | HTMLElement): el is HTMLInputElement | HTMLTextAreaElement;
/**
 * 判断组件是否是Vue组件
 *
 * @param component 组件
 */
export declare function isVueComponent(component: any): boolean;