Files
cadhub/web/src/components/PartForm/ImageUploader.js
2020-10-28 20:47:05 +11:00

120 lines
4.1 KiB
JavaScript

import React, { useCallback, useState } from "react";
import { useDropzone } from "react-dropzone";
import Button from "@material-ui/core/Button";
import axios from 'axios'
import ReactCrop from 'react-image-crop'
import { Dialog } from '@material-ui/core'
import { Image as CloudinaryImage } from 'cloudinary-react'
import 'react-image-crop/dist/ReactCrop.css'
import Svg from 'src/components/Svg/Svg.js'
const CLOUDINARY_UPLOAD_PRESET = "CadHub_project_images";
const CLOUDINARY_UPLOAD_URL = "https://api.cloudinary.com/v1_1/irevdev/upload";
export default function ImageUploader({ onImageUpload, imageUrl }) {
const [isModalOpen, setIsModalOpen] = useState(false)
const [file, setFile] = useState()
const [cloudinaryId, setCloudinaryId] = useState(imageUrl)
const [imageObj, setImageObj] = useState()
const [crop, setCrop] = useState({
aspect: 16 / 9,
unit: '%',
width: 100,
});
async function handleImageUpload() {
const croppedFile = await getCroppedImg(imageObj, crop, 'avatar')
console.log(croppedFile)
const imageData = new FormData();
imageData.append('upload_preset', CLOUDINARY_UPLOAD_PRESET);
imageData.append('file', croppedFile);
let upload = axios.post(CLOUDINARY_UPLOAD_URL, imageData)
try {
const { data } = await upload
if (data && data.public_id !== "") {
onImageUpload({cloudinaryPublicId: data.public_id})
setCloudinaryId(data.public_id)
setIsModalOpen(false)
}
} catch (e) {
console.error('ERROR', e)
}
}
// Drag and Drop
const onDrop = useCallback(acceptedFiles => {
setIsModalOpen(true)
const fileReader = new FileReader()
fileReader.onload = () => {
setFile(fileReader.result)
}
fileReader.readAsDataURL(acceptedFiles[0])
}, []);
const { getRootProps, getInputProps, isDragActive } = useDropzone({ onDrop });
return (
<div className="m-8">
<div className="w-full relative" {...getRootProps()}>
{cloudinaryId && <button className="absolute z-10 w-full inset-0 bg-indigo-900 opacity-50 flex justify-center items-center">
<Svg name="pencil" strokeWidth={2} className="text-gray-300 h-48 w-48" />
</button>}
<input {...getInputProps()} />
{cloudinaryId && <div className="relative">
<CloudinaryImage
className="object-cover w-full rounded shadow"
cloudName="irevdev"
publicId={cloudinaryId}
width="600"
crop="scale"
/>
</div>}
{!cloudinaryId && <button className="absolute inset-0"></button>}
{!cloudinaryId && <div className="mt-3 text-indigo-500 border-dashed border border-indigo-500 py-8 text-center rounded-lg w-full">
Drop files here ...
or <span className="group flex w-full items-center justify-center py-4">
<span className="bg-indigo-500 shadow rounded text-gray-200 cursor-pointer p-2 hover:shadow-lg transform hover:-translate-y-1 transition-all duration-150">upload</span>
</span>
</div>}
</div>
<Dialog
open={isModalOpen}
onClose={() => setIsModalOpen(false)}
>
<div className="p-4">
<ReactCrop src={file} crop={crop} onImageLoaded={(image) => setImageObj(image)} onChange={newCrop => setCrop(newCrop)} />
<Button onClick={handleImageUpload} variant="outlined">Upload</Button>
</div>
</Dialog>
</div>
);
}
function getCroppedImg(image, crop, fileName) {
const canvas = document.createElement('canvas');
const scaleX = image.naturalWidth / image.width;
const scaleY = image.naturalHeight / image.height;
canvas.width = crop.width;
canvas.height = crop.height;
const ctx = canvas.getContext('2d');
ctx.drawImage(
image,
crop.x * scaleX,
crop.y * scaleY,
crop.width * scaleX,
crop.height * scaleY,
0,
0,
crop.width,
crop.height
);
// As Base64 string
// const base64Image = canvas.toDataURL('image/jpeg');
// As a blob
return new Promise((resolve, reject) => {
canvas.toBlob(blob => {
blob.name = fileName;
resolve(blob);
}, 'image/jpeg', 1);
});
}