Comment评论

对网站内容的反馈、评价和讨论。

何时使用

评论组件可用于对事物的讨论，例如页面、博客文章、问题等等。

代码演示

基本评论

一个基本的评论组件，带有作者、头像、时间和操作。

import React, { createElement, useState } from 'react';
import { Comment, Tooltip, Avatar } from 'antd';
import moment from 'moment';
import { DislikeOutlined, LikeOutlined, DislikeFilled, LikeFilled } from '@ant-design/icons';
const Demo = () => {
  const [likes, setLikes] = useState(0);
  const [dislikes, setDislikes] = useState(0);
  const [action, setAction] = useState(null);
  const like = () => {
    setLikes(1);
    setDislikes(0);
    setAction('liked');
  };
  const dislike = () => {
    setLikes(0);
    setDislikes(1);
    setAction('disliked');
  };
  const actions = [
    <Tooltip key="comment-basic-like" title="Like">
      <span onClick={like}>
        {createElement(action === 'liked' ? LikeFilled : LikeOutlined)}
        <span className="comment-action">{likes}</span>
      </span>
    </Tooltip>,
    <Tooltip key="comment-basic-dislike" title="Dislike">
      <span onClick={dislike}>
        {React.createElement(action === 'disliked' ? DislikeFilled : DislikeOutlined)}
        <span className="comment-action">{dislikes}</span>
      </span>
    </Tooltip>,
    <span key="comment-basic-reply-to">Reply to</span>,
  ];
  return (
    <Comment
      actions={actions}
      author={<a>Han Solo</a>}
      avatar={
        <Avatar
          src="https://zos.alipayobjects.com/rmsportal/ODTLcjxAfvqbxHnVXCYX.png"
          alt="Han Solo"
        />
      }
      content={
        <p>
          We supply a series of design principles, practical patterns and high quality design
          resources (Sketch and Axure), to help people create their product prototypes beautifully
          and efficiently.
        </p>
      }
      datetime={
        <Tooltip title={moment().format('YYYY-MM-DD HH:mm:ss')}>
          <span>{moment().fromNow()}</span>
        </Tooltip>
      }
    />
  );
};
ReactDOM.render(<Demo />, mountNode);

/* tile uploaded pictures */
.comment-action {
  padding-left: 8px;
  cursor: 'auto';
}
[class*='-col-rtl'] .comment-action {
  padding-right: 8px;
  padding-left: 0;
}

配合 List 组件

配合 List 组件展现评论列表。

import { Comment, Tooltip, List } from 'antd';
import moment from 'moment';
const data = [
  {
    actions: [<span key="comment-list-reply-to-0">Reply to</span>],
    author: 'Han Solo',
    avatar: 'https://zos.alipayobjects.com/rmsportal/ODTLcjxAfvqbxHnVXCYX.png',
    content: (
      <p>
        We supply a series of design principles, practical patterns and high quality design
        resources (Sketch and Axure), to help people create their product prototypes beautifully and
        efficiently.
      </p>
    ),
    datetime: (
      <Tooltip title={moment().subtract(1, 'days').format('YYYY-MM-DD HH:mm:ss')}>
        <span>{moment().subtract(1, 'days').fromNow()}</span>
      </Tooltip>
    ),
  },
  {
    actions: [<span key="comment-list-reply-to-0">Reply to</span>],
    author: 'Han Solo',
    avatar: 'https://zos.alipayobjects.com/rmsportal/ODTLcjxAfvqbxHnVXCYX.png',
    content: (
      <p>
        We supply a series of design principles, practical patterns and high quality design
        resources (Sketch and Axure), to help people create their product prototypes beautifully and
        efficiently.
      </p>
    ),
    datetime: (
      <Tooltip title={moment().subtract(2, 'days').format('YYYY-MM-DD HH:mm:ss')}>
        <span>{moment().subtract(2, 'days').fromNow()}</span>
      </Tooltip>
    ),
  },
];
ReactDOM.render(
  <List
    className="comment-list"
    header={`${data.length} replies`}
    itemLayout="horizontal"
    dataSource={data}
    renderItem={item => (
      <li>
        <Comment
          actions={item.actions}
          author={item.author}
          avatar={item.avatar}
          content={item.content}
          datetime={item.datetime}
        />
      </li>
    )}
  />,
  mountNode,
);

嵌套评论

评论可以嵌套。

import { Comment, Avatar } from 'antd';
const ExampleComment = ({ children }) => (
  <Comment
    actions={[<span key="comment-nested-reply-to">Reply to</span>]}
    author={<a>Han Solo</a>}
    avatar={
      <Avatar
        src="https://zos.alipayobjects.com/rmsportal/ODTLcjxAfvqbxHnVXCYX.png"
        alt="Han Solo"
      />
    }
    content={
      <p>
        We supply a series of design principles, practical patterns and high quality design
        resources (Sketch and Axure).
      </p>
    }
  >
    {children}
  </Comment>
);
ReactDOM.render(
  <ExampleComment>
    <ExampleComment>
      <ExampleComment />
      <ExampleComment />
    </ExampleComment>
  </ExampleComment>,
  mountNode,
);

回复框

评论编辑器组件提供了相同样式的封装以支持自定义评论编辑器。

import { Comment, Avatar, Form, Button, List, Input } from 'antd';
import moment from 'moment';
const { TextArea } = Input;
const CommentList = ({ comments }) => (
  <List
    dataSource={comments}
    header={`${comments.length} ${comments.length > 1 ? 'replies' : 'reply'}`}
    itemLayout="horizontal"
    renderItem={props => <Comment {...props} />}
  />
);
const Editor = ({ onChange, onSubmit, submitting, value }) => (
  <>
    <Form.Item>
      <TextArea rows={4} onChange={onChange} value={value} />
    </Form.Item>
    <Form.Item>
      <Button htmlType="submit" loading={submitting} onClick={onSubmit} type="primary">
        Add Comment
      </Button>
    </Form.Item>
  </>
);
class App extends React.Component {
  state = {
    comments: [],
    submitting: false,
    value: '',
  };
  handleSubmit = () => {
    if (!this.state.value) {
      return;
    }
    this.setState({
      submitting: true,
    });
    setTimeout(() => {
      this.setState({
        submitting: false,
        value: '',
        comments: [
          ...this.state.comments,
          {
            author: 'Han Solo',
            avatar: 'https://zos.alipayobjects.com/rmsportal/ODTLcjxAfvqbxHnVXCYX.png',
            content: <p>{this.state.value}</p>,
            datetime: moment().fromNow(),
          },
        ],
      });
    }, 1000);
  };
  handleChange = e => {
    this.setState({
      value: e.target.value,
    });
  };
  render() {
    const { comments, submitting, value } = this.state;
    return (
      <>
        {comments.length > 0 && <CommentList comments={comments} />}
        <Comment
          avatar={
            <Avatar
              src="https://zos.alipayobjects.com/rmsportal/ODTLcjxAfvqbxHnVXCYX.png"
              alt="Han Solo"
            />
          }
          content={
            <Editor
              onChange={this.handleChange}
              onSubmit={this.handleSubmit}
              submitting={submitting}
              value={value}
            />
          }
        />
      </>
    );
  }
}
ReactDOM.render(<App />, mountNode);

API