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148 changes: 148 additions & 0 deletions
148
packages/uiweb/src/lib/components/chat/CreateGroup/AutoImageClipper.tsx
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,148 @@ | ||
| // React + Web3 Essentials | ||
| import React, { Fragment, useCallback, useState } from "react"; | ||
|
|
||
| // External Packages | ||
| import Cropper from "react-easy-crop"; | ||
| import styledComponents from "styled-components"; | ||
| import Resizer from "react-image-file-resizer"; | ||
|
|
||
| type CropType = { | ||
| x: number; | ||
| y: number; | ||
| } | ||
|
|
||
| type CroppedAreaPixels = { | ||
| height: number; | ||
| width: number; | ||
| x: number; | ||
| y: number; | ||
| } | ||
|
|
||
| const AutoImageClipper = (props: { imageSrc: any; onImageCropped: any; width: any; height: any; }) => { | ||
| const { imageSrc, onImageCropped, width, height } = props; | ||
| const [crop, setCrop] = useState<CropType>({ x: 0, y: 0 }); | ||
| const [zoom, setZoom] = useState<number>(1); | ||
| const [croppedAreaPixels, setCroppedAreaPixels] = useState<CroppedAreaPixels|null>(null); | ||
| const [croppedImage, setCroppedImage] = useState<string>(''); | ||
| const onCropComplete = useCallback((croppedArea, croppedAreaPixels) => { | ||
| setCroppedAreaPixels(croppedAreaPixels); | ||
| }, []); | ||
|
|
||
| React.useEffect(() => { | ||
| async function showCroppedImage() { | ||
| try { | ||
| if (imageSrc) { | ||
| const croppedImage = await getCroppedImg(imageSrc, croppedAreaPixels!); | ||
| const image = await resizeFile(croppedImage); | ||
| onImageCropped(image); | ||
| } else { | ||
| return "Nothing"; | ||
| } | ||
| } catch (e) { | ||
| console.error(e); | ||
| } | ||
| } | ||
| showCroppedImage(); | ||
| }, [crop]); | ||
|
|
||
| async function getCroppedImg(imageSrc:string, pixelCrop: { height: any; width: any; x: any; y: any; }) { | ||
| const image = await createImage(imageSrc); | ||
| const canvas = document.createElement("canvas"); | ||
| canvas.width = pixelCrop?.width; | ||
| canvas.height = pixelCrop?.height; | ||
| const ctx = canvas.getContext("2d"); | ||
| const fileName = "none.jpg"; | ||
|
|
||
| ctx!.drawImage( | ||
| image as CanvasImageSource, | ||
| pixelCrop.x, | ||
| pixelCrop.y, | ||
| pixelCrop.width, | ||
| pixelCrop.height, | ||
| 0, | ||
| 0, | ||
| pixelCrop.width, | ||
| pixelCrop.height | ||
| ); | ||
|
|
||
| // As Base64 string | ||
| // return canvas.toDataURL('image/jpeg'); | ||
|
|
||
| // As a blob | ||
| return new Promise((resolve, reject) => { | ||
| canvas.toBlob((file) => { | ||
| // resolve(URL.createObjectURL(file)); | ||
| resolve( | ||
| new File([file!], fileName, { | ||
| type: "image/jpeg", | ||
| lastModified: Date.now() | ||
| }) | ||
| ); | ||
| }, "image/jpeg"); | ||
| }); | ||
| } | ||
|
|
||
| const resizeFile = (file: any) => { | ||
| return new Promise((resolve) => { | ||
| Resizer.imageFileResizer( | ||
| file, | ||
| 128, | ||
| 128, | ||
| "JPEG", | ||
| 80, | ||
| 0, | ||
| (uri) => { | ||
| resolve(uri); | ||
| setCroppedImage(uri as unknown as string); | ||
| }, | ||
| "base64" | ||
| ); | ||
| }); | ||
| }; | ||
|
|
||
| const createImage = (url: string) => { | ||
| return new Promise((resolve, reject) => { | ||
| const image = new Image(); | ||
| image.addEventListener("load", () => resolve(image)); | ||
| image.addEventListener("error", (error) => reject(error)); | ||
| image.setAttribute("crossOrigin", "anonymous"); // needed to avoid cross-origin issues on CodeSandbox | ||
| image.src = url; | ||
| }); | ||
| }; | ||
|
|
||
| const onZoomChange = (zoom: React.SetStateAction<number>) => { | ||
| setZoom(zoom); | ||
| }; | ||
| return ( | ||
| <Fragment> | ||
| <Container> | ||
| <Cropper | ||
| image={imageSrc} | ||
| crop={crop} | ||
| zoom={zoom} | ||
| aspect={1} | ||
| onCropChange={setCrop} | ||
| onCropComplete={onCropComplete} | ||
| onZoomChange={onZoomChange} | ||
| style={{ | ||
| containerStyle: { | ||
| width: width ? width : "0.1px", | ||
| height: height ? height : "0.1px", | ||
| position: "relative", | ||
| borderRadius: "16px" | ||
| } | ||
| }} | ||
| /> | ||
| </Container> | ||
| </Fragment> | ||
| ); | ||
| }; | ||
|
|
||
| const Container = styledComponents.div` | ||
| display: flex; | ||
| flex-direction: column; | ||
| align-items: center; | ||
| justify-content: center; | ||
| `; | ||
|
|
||
| export default AutoImageClipper; |
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