PictureSignature.js

import React, { useState, useEffect, useRef } from 'react';
import styles from './styles.less';
import { Button, Icon } from 'antd';
import ShowItem, { dragEventList, zipImage } from './ShowItem';
import { apiRequest } from '../../utils/request';
import { deepCopy } from '@/webPublic/one_stop_public/utils/myutils';
import { getMessage, getModal, getPopconfirm } from '@/webPublic/one_stop_public/utils/utils';

const Modal = getModal();
const message = getMessage();
const styleList = {
  modalParentDiv: {
    display: 'grid',
    placeItems: 'center',
    width: '100%',
    height: '100%',
  },
  modalDiv: {
    display: 'grid',
    position: 'relative',
    overflow: 'auto',
    backgroundRepeat: 'no-repeat',
    backgroundPosition: 'center',
    backgroundSize: 'cover',
  },
  oneSetItem: {
    position: 'absolute',
  },
  oneSetItemP: {
    marginBottom: 0,
    userSelect: 'none',
  },
  draggableIcon: {
    // position: 'absolute',
    // left: '10',
    // top: '10',
    // color: 'red',
    zIndex: '10000',
    border: '1px solid red',
  },
  readOnlyImage: {
    width: '100%',
    display: 'grid',
    placeItems: 'center',
  },
};

const getContent = (signConfig = [], ratioX) => {
  let data = deepCopy(signConfig);
  return JSON.stringify({
    objs: data.map(g => {
      // 1200 的 x => 1500的 x
      //
      g.x = Math.ceil(g.x * ratioX);
      g.y = Math.ceil(g.y * ratioX);

      if (g.type === 'text') {
        g.fontSize = Math.ceil(g.fontSize * ratioX);
        g.y = g.y + (g.offsetY || 0);
        g.x = g.x + (g.offsetX || 0);
      }
      if (g.type === 'image') {
        g.w = Math.ceil(g.w * ratioX);
        g.h = Math.ceil(g.h * ratioX);
      }
      return g;
    }),
  });
};

export default function PictureSignature({
  json,
  disabled,
  basicUrl,
  onChangeFile,
  imageIndex,
  form,
  // fileInfo,
  ...others
}) {
  let imageRef = useRef();
  const [fileInfo, setFileInfo] = useState({});
  // const [fileInfo, setFileInfo] = useState(fakeFileInfo);
  const [openEdit, setOpenEdit] = useState(false);
  const [originSignConfig, setOriginConfig] = useState([]);
  const [showModal, setShowModal] = useState(false);
  const [otherProps, setOtherProps] = useState({});
  const [imageInfo, setImageInfo] = useState(null);
  const changeShowModal = () => {
    if (!showModal) {
      if (!imageInfo && !disabled) {
        zipImage(fileInfo.path, fileInfo.name, otherProps?.backgroundImageWidth).then(res => {
          let image = new Image(); //新建一个img标签（还没嵌入DOM节点)
          image.src = basicUrl + res;
          image.onload = () => {
            // alert(image.width);
            setImageInfo({
              width: image.width,
              height: image.height,
            });
          };
          setFileInfo({
            path: res,
            name: fileInfo.name,
            originPath: res,
          });
        });
      }
    }
    setShowModal(!showModal);
  };



  useEffect(() => {
    if (otherProps?.signConfig && !imageRef?.current) {
      imageRef.current = true;
      dragEventList(setOtherProps, otherProps);
    }
  }, [otherProps]);

  useEffect(() => {
    setFileInfo({
      ...others?.fileInfo,
    })
  }, [others?.fileInfo]);

  useEffect(() => {
    if (json.otherProps) {
      try {
        let func = new Function(json.otherProps);
        let otherPropsX = func();
        setOtherProps(otherPropsX);
        setOriginConfig([...otherPropsX.signConfig]);
      } catch (e) {
        console.log('签章组件 其余配置项出错,没有返回一个正确的值');
        return false;
      }
    }
  }, [json.otherProps]);
  const {
    ModalProps = {},
    signConfig,
    footerButtons,
    originButtons,
    backgroundImageWidth,
    saveSignConfigValue = '',
    showImageWidth = 1200,
  } = otherProps || {};
  const deleteSignConfig = key => {
    let findX = signConfig.findIndex(g => g.key === key);
    signConfig.splice(findX, 1);
    setOtherProps({
      ...otherProps,
      signConfig,
    });
  };
  const handleClickButton = clickType => {
    switch (clickType) {
      case 'startEdit': // 开始签章
        if (signConfig && signConfig.length < originSignConfig.length) {
          setOtherProps({
            ...otherProps,
            signConfig: originSignConfig,
          });
        }
        setOpenEdit(true);
        break;
      case 'confirm': // 确定
        onChangeFile({ ...fileInfo }, imageIndex);
        changeShowModal();
        break;
      case 'save': // 保存签章
        Modal.confirm({
          title: '是否确认生成签章图片?',
          content: '生成后图片不能还原,请谨慎操作!',
          okText: '确定',
          cancelText: '取消',
          onOk: () => {
            let ratioX = backgroundImageWidth / showImageWidth; // 本来是 1500 的 图片 宽度变成了 1200 高度变成了 1200/1500 * imageInfo.height;
            let content = getContent(otherProps.signConfig, ratioX);
            apiRequest('/ImageLibApi/merge', {
              background: fileInfo?.path,
              content,
            }).then(res => {
              if (form && saveSignConfigValue) {
                form.setFieldsValue({
                  [saveSignConfigValue]: content,
                });
              }
              if (res && res.path) {
                message.success('操作成功');
                let newPath = res.path;
                fileInfo.originPath = fileInfo.path;
                fileInfo.path = newPath;
                setFileInfo({ ...fileInfo });
                setOpenEdit(false);
              }
            });
          }
        })


        break;
      case 'restore': // 还原图片
        if (fileInfo.originPath) {
          fileInfo.path = fileInfo.originPath;
          setFileInfo({ ...fileInfo });
          setOpenEdit(false);
        }
        break;
      default:
        return true;
    }
  };

  const Footer = () => {
    if (disabled) {
      return null;
    }
    if (openEdit) {
      return footerButtons.map(g => {
        return (
          <Button
            type={g.type}
            key={g.key}
            onClick={() => {
              handleClickButton(g.clickType);
            }}
          >
            {g.name}
          </Button>
        );
      });
    } else {
      return originButtons.map(g => {
        // if (g.clickType === 'startEdit') {
        //   return   <Popconfirm
        //     title={<div>
        //       <p>选择签章组件</p>
        //       <div>
        //         {signConfig.map((g) => {
        //           return <p key={g.key}>{g.name}</p>
        //         })}
        //       </div>
        //     </div>}
        //     onConfirm={()=>{
        //       handleClickButton(g.clickType);
        //     }}
        //     onCancel={()=>{}}
        //     okText="确定"
        //     key={g.key}
        //     cancelText="取消"
        //   >
        //     <Button
        //       type={g.type}
        //     >
        //       {g.name}
        //     </Button>
        //   </Popconfirm>
        // }
        return (
          <Button
            type={g.type}
            key={g.key}
            onClick={() => {
              handleClickButton(g.clickType);
            }}
          >
            {g.name}
          </Button>
        );
      });
    }
  };
  if (!fileInfo) {
    return null;
  }
  console.log('签章组件');
  return (
    <div className={styles.outSideDiv}>
      {fileInfo && fileInfo?.path && (
        <img
          className={styles.onePic}
          src={basicUrl + fileInfo?.path}
          alt={fileInfo.name}
          onClick={changeShowModal}
        />
      )}
      {showModal && (
        <Modal
          visible={true}
          destroyOnClose={true}
          maskClosable={false}
          onCancel={changeShowModal}
          className={styles.ModalClass}
          footer={<Footer />}
          title={'图片签章'}
          width={showImageWidth + 50 + 'px'}
          bodyStyle={{
            minHeight: '700px',
            overflow: 'auto',
            padding: '5px',
            maxWidth: '99%',
            maxHeight: '99%',
          }}
          {...ModalProps}
        >
          <div style={styleList.modalParentDiv}>
            {openEdit && ( // 开启签章功能
              <div
                style={{
                  ...styleList.modalDiv,
                  backgroundImage: `url(${basicUrl + fileInfo?.path})`,
                  width: showImageWidth,
                  height: (imageInfo && imageInfo.height / (imageInfo.width / showImageWidth)) || 0,
                }}
                alt={'拖拽区域'}
                draggable={false}
                id={'dropZone'}
              >
                {Array.isArray(signConfig) &&
                  signConfig.map(g => {
                    return (
                      <div
                        key={g.key}
                        data-mes={g.key}
                        draggable={false}
                        style={{
                          ...styleList.oneSetItem,
                          top: g.y,
                          left: g.x,
                        }}
                      >
                        <div style={styleList.draggableIcon} data-mes={g.key} draggable={true}>
                          <div
                            style={{
                              display: 'inline',
                            }}
                          >
                            <Icon
                              type="close-circle"
                              onClick={e => {
                                if (e && e.stopPropagation) {
                                  e.stopPropagation();
                                  e.preventDefault();
                                  deleteSignConfig(g.key);
                                }
                              }}
                              style={{
                                position: 'absolute',
                                top: 0,
                                right: 0,
                                cursor: 'pointer',
                                color: 'red',
                              }}
                            />
                          </div>
                          <ShowItem {...g} basicUrl={basicUrl} />
                        </div>
                      </div>
                    );
                  })}
              </div>
            )}
            {!openEdit && ( // 不开启签章功能 只是预览图片
              <div style={styleList.readOnlyImage} draggable={false}>
                <img
                  src={basicUrl + fileInfo?.path + `?v=${Math.random()}`}
                  alt={fileInfo.name}
                  draggable={false}
                  style={{
                    width: `${showImageWidth}px`,
                    height: 'auto',
                  }}
                />
              </div>
            )}
          </div>
        </Modal>
      )}
    </div>
  );
}

export function SignArray(props) {
  const { value, onChange, basicUrl, json, form } = props;
  let files = value?.files || [];
  const onChangeFile = (newFielInfo, imageIndex) => {
    if (newFielInfo && newFielInfo.path) {
      files[imageIndex] = newFielInfo;
      value.files = files;
      onChange(value);
    }
  };
  return (
    <div>
      {files.map((g, index) => {
        return (
          <PictureSignature
            json={json}
            basicUrl={basicUrl}
            fileInfo={g}
            form={form}
            imageIndex={index}
            onChangeFile={onChangeFile}
          />
        );
      })}
    </div>
  );
}