@gfnork/react-images-uploading
v3.1.7
Published
The simple images uploader applied Render Props pattern. This approach allows you to fully control UI component and behaviours.
Downloads
12
Maintainers
Readme
react-images-uploading
The simple images uploader applied Render Props
pattern. (You can read more about this pattern here).
This approach allows you to fully control UI component and behaviours.
Installation
npm
npm install --save react-images-uploading
yarn
yarn add react-images-uploading
Usage
You can check out the basic demo here:
- Javascript: https://codesandbox.io/s/react-images-uploading-demo-u0khz
- Typescript: https://codesandbox.io/s/react-images-uploading-demo-typescript-fr2zm
- Server Side rendering (NextJS): https://codesandbox.io/s/react-images-uploading-ssr-j1qq2
Basic
import React from 'react';
import ImageUploading from 'react-images-uploading';
export function App() {
const [images, setImages] = React.useState([]);
const maxNumber = 69;
const onChange = (imageList, addUpdateIndex) => {
// data for submit
console.log(imageList, addUpdateIndex);
setImages(imageList);
};
return (
<div className="App">
<ImageUploading
multiple
value={images}
onChange={onChange}
maxNumber={maxNumber}
dataURLKey="data_url"
>
{({
imageList,
onImageUpload,
onImageRemoveAll,
onImageUpdate,
onImageRemove,
isDragging,
dragProps,
}) => (
// write your building UI
<div className="upload__image-wrapper">
<button
style={isDragging ? { color: 'red' } : undefined}
onClick={onImageUpload}
{...dragProps}
>
Click or Drop here
</button>
<button onClick={onImageRemoveAll}>Remove all images</button>
{imageList.map((image, index) => (
<div key={index} className="image-item">
<img src={image['data_url']} alt="" width="100" />
<div className="image-item__btn-wrapper">
<button onClick={() => onImageUpdate(index)}>Update</button>
<button onClick={() => onImageRemove(index)}>Remove</button>
</div>
</div>
))}
</div>
)}
</ImageUploading>
</div>
);
}
Validation
...
{({ imageList, onImageUpload, onImageRemoveAll, errors }) => (
errors && <div>
{errors.maxNumber && <span>Number of selected images exceed maxNumber</span>}
{errors.acceptType && <span>Your selected file type is not allow</span>}
{errors.maxFileSize && <span>Selected file size exceed maxFileSize</span>}
{errors.resolution && <span>Selected file is not match your desired resolution</span>}
</div>
)}
...
Drag and Drop
...
{({ imageList, dragProps, isDragging }) => (
<div {...dragProps}>
{isDragging ? "Drop here please" : "Upload space"}
{imageList.map((image, index) => (
<img key={index} src={image.data_url} />
))}
</div>
)}
...
Props
| parameter | type | options | default | description |
| ---------------- | ----------------------------------- | ----------------------------------------- | ------- | ------------------------------------------------------------------ |
| value | array | | [] | List of images |
| onChange | function | (imageList, addUpdateIndex) => void | | Called when add, update or delete action is called |
| dataURLKey | string | | dataURL | Customized field name that base64 of selected image is assigned to |
| multiple | boolean | | false | Set true
for multiple chooses |
| maxNumber | number | | 1000 | Number of images user can select if mode = multiple
|
| onError | function | (errors, files) => void | | Called when it has errors |
| acceptType | array | ['jpg', 'gif', 'png'] | [] | The file extension(s) to upload |
| maxFileSize | number | | | Max image size (Byte) and it is used in validation |
| resolutionType | string | 'absolute' | 'less' | 'more' | 'ratio' | | Using for image validation with provided width & height |
| resolutionWidth | number | > 0 | | |
| resolutionHeight | number | > 0 | | |
| inputProps | React.HTMLProps<HTMLInputElement> | | | |
Note
resolutionType
| value | description | | :------- | :----------------------------------------------------------------------- | | absolute | image's width === resolutionWidth && image's height === resolutionHeight | | ratio | (resolutionWidth / resolutionHeight) === (image width / image height) | | less | image's width < resolutionWidth && image's height < resolutionHeight | | more | image's width > resolutionWidth && image's height > resolutionHeight |
Exported options
| parameter | type | description |
| :--------------- | :---------------------------------------- | :------------------------------------------------------------------ |
| imageList | array | List of images to render. |
| onImageUpload | function | Called when an element is clicks and triggers to open a file dialog |
| onImageRemoveAll | function | Called when removing all images |
| onImageUpdate | (updateIndex: number) => void | Called when updating an image at updateIndex
. |
| onImageRemove | (deleteIndex: number | number[]) => void | Called when removing one or list image. |
| errors | object | Exported object of validation |
| dragProps | object | Native element props for drag and drop feature |
| isDragging | boolean | "true" if an image is being dragged |
Contributors ✨
Thanks goes to these wonderful people (emoji key):
This project follows the all-contributors specification. Contributions of any kind welcome!