颜色选择器react-color

配合表单使用的颜色选择器：https://www.jianshu.com/p/b7bc59146058，原文react hooks版本的，我改成的class函数版本的。

   1.安装：

npm install react-color --save

   2.封装：colorPicker.js

import React, { FC } from 'react';
import { SketchPicker } from 'react-color';

class ColorPicker extends React.Component {
  constructor() {
    super();
    this.state={
      displayColorPicker:false,
      color:"#6A8F2E",
    }
  }

  handleClick = () => {
    const {displayColorPicker} = this.state
    this.setState({ displayColorPicker: !displayColorPicker });
  };

  handleClose = () => {
    this.setState({ displayColorPicker: false });
  };

  handleChange = ({ hex }) => {
    const {onChange} = this.props;
    this.setState({ color: hex });
    // eslint-disable-next-line no-unused-expressions
    onChange && onChange(hex);
  };

  render() {

    const {displayColorPicker,color} =this.state;

    return (
      <div>
        <div
          style={{
            padding: '5px',
            background: '#fff',
            borderRadius: '1px',
            boxShadow: '0 0 0 1px rgba(0,0,0,.1)',
            display: 'inline-block',
            cursor: 'pointer',
           }}
          onClick={this.handleClick}
        >
          <div
            style={{
              width: '36px',
              height: '14px',
              borderRadius: '2px',
              background: color,
            }}
          />
        </div>
        {displayColorPicker ? (
          <div
            style={{
              position: 'absolute',
              zIndex: '2',
            }}
          >
            <div
              style={{
                position: 'fixed',
                top: '0px',
                right: '0px',
                bottom: '0px',
                left: '0px',
              }}
              onClick={this.handleClose}
            />
            <SketchPicker color={color} onChange={this.handleChange} />
          </div>
        ) : null}
      </div>
    )
  }
}

export default ColorPicker;

3.使用：引入和表单使用的部分代码 

import ColorPicker from "../colorPicker";

 <Form {...formItemLayout} layout='vertical' onSubmit={this.okHandler}>
          <FormItem label="节点标题">
            {getFieldDecorator('name', {
              rules: [
                {
                  required: true,
                  message: '节点名称不可为空',
                },
                {
                  max: 100,
                  message: '字符限制100个',
                },
              ],
              initialValue: elementName,
            })(<Input placeholder="请输入节点名称" />)}
          </FormItem>
          <FormItem label="节点颜色">
            {getFieldDecorator('color', {
              initialValue: "#6A8F2E",
            })( <ColorPicker />)}
          </FormItem>
 </Form>

使用还是挺方便的。