Ant-design 源码分析之数据展示（七）Comment

Ant-design 源码分析之数据展示（七）Comment

2021SC@SDUSC

一、组件结构

1、ant代码结构

2、组件结构

ant中Comment的index.tsx中引入了config-provider。

二、antd组件调用关系

1、index.tsx
导入相应模块以及相应的ICON图标

import * as React from 'react';
import classNames from 'classnames';
import {
     ConfigContext } from '../config-provider';

声明CommentProps接口

export interface CommentProps {
    /** List of action items rendered below the comment content */actions?: Array<React.ReactNode>;/** The element to display as the comment author. */author?: React.ReactNode;/** The element to display as the comment avatar - generally an antd Avatar */avatar?: React.ReactNode;/** ClassName of comment */className?: string;/** The main content of the comment */content: React.ReactNode;/** Nested comments should be provided as children of the Comment */children?: React.ReactNode;/** Comment prefix defaults to '.ant-comment' */prefixCls?: string;/** Additional style for the comment */style?: React.CSSProperties;/** A datetime element containing the time to be displayed */datetime?: React.ReactNode;
}

actions：在评论内容下面呈现的操作项列表，类型为Array
author：要显示为注释作者的元素，类型为ReactNode
avatar：要显示为评论头像的元素 - 通常是 antd Avatar 或者 src，类型为ReactNode
children：嵌套注释应作为注释的子项提供，类型为ReactNode
content：评论的主要内容，类型为ReactNode
datetime：展示时间描述，类型为ReactNode

const Comment: React.FC<CommentProps> = ({
     actions,author,avatar,children,className,content,prefixCls: customizePrefixCls,datetime,...otherProps }) => {
    

  const {
     getPrefixCls, direction } = React.useContext(ConfigContext);const renderNested = (prefixCls: string, nestedChildren: any) => (<div className={
    classNames(`${
      prefixCls}-nested`)}>{
    nestedChildren}</div>);const prefixCls = getPrefixCls('comment', customizePrefixCls);const avatarDom = avatar ? (<div className={
    `${
      prefixCls}-avatar`}>{
    typeof avatar === 'string' ? <img src={
    avatar} alt="comment-avatar" /> : avatar}</div>) : null;

  const actionDom =actions && actions.length ? (<ul className={
    `${
      prefixCls}-actions`}>{
    actions.map((action, index) => (<li key={
    `action-${
      index}`}>{
    action}</li> // eslint-disable-line react/no-array-index-key))}</ul>) : null;const authorContent = (author || datetime) && (<div className={
    `${
      prefixCls}-content-author`}>{
    author && <span className={
    `${
      prefixCls}-content-author-name`}>{
    author}</span>}{
    datetime && <span className={
    `${
      prefixCls}-content-author-time`}>{
    datetime}</span>}</div>);

  const contentDom = (<div className={
    `${
      prefixCls}-content`}>{
    authorContent}<div className={
    `${
      prefixCls}-content-detail`}>{
    content}</div>{
    actionDom}</div>);const cls = classNames(prefixCls,{
    [`${
      prefixCls}-rtl`]: direction === 'rtl',},className,);

  return (<div {
    ...otherProps} className={
    cls}><div className={
    `${
      prefixCls}-inner`}>{
    avatarDom}{
    contentDom}</div>{
    children ? renderNested(prefixCls, children) : null}</div>);
};