YPZZBWG/houtai/src/pages/B3Wall/WallAdd/index.tsx

import { MessageFu } from "@/utils/message";
import { Button, Form, Input, Popconfirm, Radio } from "antd";
import React, { useCallback, useEffect, useRef, useState } from "react";
import { PlusOutlined, CloseOutlined } from "@ant-design/icons";
import classNames from "classnames";
import styles from "./index.module.scss";

import ImageLazy from "@/components/ImageLazy";
import { ImgListType } from "@/types";
import WallLook from "../WallLook";
type Props = {
  id: number;
  closeMoalFu: () => void;
};

// 上传附件的进度条
const UpAsyncLodingDom: any = document.querySelector("#UpAsyncLoding");
const progressDom: any = document.querySelector("#progress");

function WallAdd({ id, closeMoalFu }: Props) {
  const getInfoFu = useCallback((id: number) => {
    console.log("是编辑", id);
  }, []);

  useEffect(() => {
    if (id > 0) getInfoFu(id);
  }, [getInfoFu, id]);

  // 表单的ref
  const FormBoxRef = useRef<any>({});
  // 上传封面图的ref
  const myInput = useRef<HTMLInputElement>(null);

  // 版式的选择
  const [imgNum, setImgNum] = useState(1);

  // 上传图片的校验
  const [imgCheck, setImgCheck] = useState(false);

  // 上传图片的全部数据（最多8张来进行切割）
  const imgListRef = useRef<ImgListType[]>([
    { id: 1, fileName: "xxx", filePath: "/wall/img/20230202_12193909316.jpg" },
    { id: 2, fileName: "xxx", filePath: "/wall/img/20230209_1519270201.gif" },
    { id: 3, fileName: "xxx", filePath: "/wall/img/20230202_12193909316.jpg" },
    { id: 4, fileName: "xxx", filePath: "/wall/img/20230209_1519270201.gif" },
    { id: 5, fileName: "xxx", filePath: "/wall/img/20230202_12193909316.jpg" },
    { id: 6, fileName: "xxx", filePath: "/wall/img/20230209_1519270201.gif" },
    { id: 7, fileName: "xxx", filePath: "/wall/img/20230202_12193909316.jpg" },
    { id: 8, fileName: "xxx", filePath: "/wall/img/20230209_1519270201.gif" },
  ]);

  // 在页面展示的图片
  const [imgList, setImgList] = useState<ImgListType[]>([]);

  // 版式的选择改变，切割数组
  useEffect(() => {
    if (imgListRef.current.length) {
      const newData = imgListRef.current.slice(0, imgNum);
      setImgList(newData);
    }
  }, [imgNum]);

  // ---------附件图片的拖动
  const [dragImg, setDragImg] = useState<any>(null);

  const handleDragOver = useCallback(
    (e: React.DragEvent<HTMLDivElement>, item: ImgListType) => {
      e.dataTransfer.dropEffect = "move";
    },
    []
  );

  const handleDragEnter = useCallback(
    (e: React.DragEvent<HTMLDivElement>, item: ImgListType) => {
      e.dataTransfer.effectAllowed = "move";
      if (item === dragImg) return;
      const newItems = [...imgList]; //拷贝一份数据进行交换操作。
      const src = newItems.indexOf(dragImg); //获取数组下标
      const dst = newItems.indexOf(item);
      newItems.splice(dst, 0, ...newItems.splice(src, 1)); //交换位置
      setImgList(newItems);
    },
    [dragImg, imgList]
  );

  // 删除某一张图片
  const delImgListFu = useCallback(
    (id: number) => {
      const newItems = imgList.filter((v) => v.id !== id);
      setImgList(newItems);
      imgListRef.current = imgListRef.current.filter((v) => v.id !== id);
    },
    [imgList]
  );

  // 没有通过校验
  const onFinishFailed = useCallback(() => {
    setImgCheck(true);
  }, []);

  // 上传封面图
  const handeUpPhoto = useCallback(
    async (e: React.ChangeEvent<HTMLInputElement>) => {
      if (e.target.files) {
        // 拿到files信息
        const filesInfo = e.target.files[0];
        // 校验格式
        const type = ["image/jpeg", "image/png"];
        if (!type.includes(filesInfo.type)) {
          e.target.value = "";
          return MessageFu.warning("只支持jpg、png格式!");
        }
        // 校验大小
        if (filesInfo.size > 30 * 1024 * 1024) {
          e.target.value = "";
          return MessageFu.warning("最大支持30M!");
        }
        // 创建FormData对象
        const fd = new FormData();
        // 把files添加进FormData对象（‘photo’为后端需要的字段）
        fd.append("type", "thumb");
        fd.append("file", filesInfo);

        e.target.value = "";

        // const res: any = await goodsUploadAPI(fd);
        // if (res.code === 0) {
        //   MessageFu.success("上传成功!");
        //   setCover(res.data.filePath);
        // }
        UpAsyncLodingDom.style.opacity = 0;
        progressDom.style.width = "0%";
      }
    },
    []
  );

  // 通过校验点击确定
  const onFinish = useCallback(() => {
    console.log("通过校验，点击确定");
    setImgCheck(true);
    if (imgList.length < imgNum) return;
  }, [imgList.length, imgNum]);

  // 点击预览效果
  const [lookImg, setLookImg] = useState(false);

  return (
    <div className={styles.WallAdd}>
      <div className="main">
        <Form
          ref={FormBoxRef}
          name="basic"
          labelCol={{ span: 3 }}
          onFinish={onFinish}
          onFinishFailed={onFinishFailed}
          autoComplete="off"
        >
          <Form.Item
            label="名称"
            name="name"
            rules={[{ required: true, message: "请输名称!" }]}
            getValueFromEvent={(e) => e.target.value.replace(/\s+/g, "")}
          >
            <Input maxLength={25} showCount placeholder="请输入内容" />
          </Form.Item>

          <div className="myformBox">
            <div className="label">
              <span>*</span> 版式：
            </div>
            <div className="myformBoxR">
              <Radio.Group
                onChange={(e) => setImgNum(e.target.value)}
                value={imgNum}
              >
                <Radio value={1}>1</Radio>
                <Radio value={2}>2</Radio>
                <Radio value={4}>4</Radio>
                <Radio value={6}>6</Radio>
                <Radio value={8}>8</Radio>
              </Radio.Group>
            </div>
          </div>

          {/* 图片上传 */}
          <div className="myformBox myformBox0">
            <input
              id="upInput"
              type="file"
              accept=".png,.jpg,.jpeg"
              ref={myInput}
              onChange={(e) => handeUpPhoto(e)}
            />

            <div className="label"></div>
            <div className="myformBoxR">
              <div className="fileBoxRow_r">
                <div className="upImgBox">
                  <div
                    hidden={imgList.length >= imgNum}
                    className="fileBoxRow_up"
                    onClick={() => myInput.current?.click()}
                  >
                    <PlusOutlined />
                  </div>
                  {imgList.map((v) => (
                    <div
                      className="fileBoxRow_r_img"
                      key={v.id}
                      draggable="true"
                      onDragStart={() => setDragImg(v)}
                      onDragOver={(e) => handleDragOver(e, v)}
                      onDragEnter={(e) => handleDragEnter(e, v)}
                      onDragEnd={() => setDragImg(null)}
                    >
                      {v.filePath ? (
                        <ImageLazy
                          noLook={dragImg ? true : false}
                          width={100}
                          height={100}
                          src={v.filePath}
                        />
                      ) : null}

                      <Popconfirm
                        title="删除后无法恢复，是否删除?"
                        okText="删除"
                        cancelText="取消"
                        onConfirm={() => delImgListFu(v.id!)}
                      >
                        <div className="clearCover">
                          <CloseOutlined />
                        </div>
                      </Popconfirm>
                    </div>
                  ))}
                </div>
                <div className="fileTit">
                  {imgList.length && imgList.length >= 2 ? (
                    <>
                      按住鼠标可拖动图片调整顺序。
                      <br />
                    </>
                  ) : null}
                  建议尺寸：{12960 / imgNum}*1920
                  <br />
                  支持png、jpg和jpeg的图片格式；最大支持30M。
                </div>
              </div>
            </div>
          </div>

          {/* 校验提示 */}
          <div
            className={classNames(
              "noUpThumb",
              imgList.length < imgNum && imgCheck ? "noUpThumbAc" : ""
            )}
          >
            请上传 {imgNum} 张图片!
          </div>

          {/* 确定和取消按钮 */}
          <br />
          <Form.Item wrapperCol={{ offset: 9, span: 16 }}>
            <Button type="primary" htmlType="submit">
              提交
            </Button>
            &emsp;
            <Button disabled={!imgList.length} onClick={() => setLookImg(true)}>
              预览效果
            </Button>
            &emsp;
            <Popconfirm
              title="放弃编辑后，信息将不会保存!"
              okText="放弃"
              cancelText="取消"
              onConfirm={closeMoalFu}
            >
              <Button>取消</Button>
            </Popconfirm>
          </Form.Item>
        </Form>
      </div>

      {/* 点击预览效果出来的页面 */}
      {lookImg ? (
        <WallLook imgList={imgList} closeMoalFu={() => setLookImg(false)} />
      ) : null}
    </div>
  );
}

const MemoWallAdd = React.memo(WallAdd);

export default MemoWallAdd;