react-viewer

Fork react-viewer

| props | type | default | description | required | |--------------|--------------|---------|-----------------------------|----------| | customImgNode | (prop: ViewerCanvasProps) => React.ReactNode | - | customer imgNode support custom image containers | false | | eventOnImg | boolean | false | When true, you can only drag and zoom on the image. | false | | rotate | number | undefined | 0 ~ 360° | false | | onImgUpdate | (prop: ViewerCoreState) => void; | - | Image scaling, dragging and other attribute change callback events (high performance consumption, use with caution) | false | | fetchImage | (successCb: SuccessCallback, src: string) => void | null | called when the component wants to receive an image from images prop | false |

eg:

npm i @kalukali/react-viewer

  const customImgNode = status => (
    <div style={{ position: 'relative' }}>
      <img src={status.imgSrc} style={{ width: '100%', height: '100%' }} alt="" />
    </div>
  )

export const FetchImage = ({ images, selectedPhotoData, onSelectPhoto, setSelectedPhotoData, token }) => {
  return (
    <Viewer
      noNavbar
      fetchImage={(successCb, src) => {
        (async () => {
          await privateAxios(token).get(src, {
            responseType: 'blob',
          }).then((response) => {
            // successCb(URL.createObjectURL(response.data));
            const reader = new window.FileReader();
            reader.readAsDataURL(response.data);
            reader.onload = function () {
              successCb(reader.result);
            }
          })
        })()
      }}
      activeIndex={selectedPhotoData ? selectedPhotoData.index : 0}
      visible={!!selectedPhotoData}
      onClose={onSelectPhoto}
      images={images.map(i => ({ src: webResourcesPath + '/images' + i.path }))}
    />
  )
}

react image viewer.

Introduction

Because I can`t be comfortable using viewerjs in react, so I created react-viewer to replace it.

Installation

react >= 16.8.0 | react-dom >= 16.8.0

npm install react-viewer --save

Usage

import * as React from 'react';
import Viewer from 'react-viewer';

function App() {
  const [ visible, setVisible ] = React.useState(false);

  return (
    <div>
      <button onClick={() => { setVisible(true); } }>show</button>
      <Viewer
      visible={visible}
      onClose={() => { setVisible(false); } }
      images={[{src: '', alt: ''}]}
      />
    </div>
  );
}

Server Side (NextJS)

import React, { FC } from 'react'
import dynamic from 'next/dynamic'

const ReactViewer = dynamic(
  () => import('react-viewer'),
  { ssr: false }
)

export const Viewer: FC = () => {
  return (
    <ReactViewer
      visible={true}
      onClose={() => {}}
      images={[{src: ''}]}
    />
  )
}

export default Viewer

Server Side rest..

I'm sorry, ssr is not currently supported in 3.x, it will be fixed in 4.0.

Props

| props | type | default | description | required | |--------------|--------------|---------|-----------------------------|----------| | visible | string | false | Viewer visible | true | | onClose | function | - | Specify a function that will be called when Visible close | true | | images | ImageDecorator[] | [] | image source array | true | | activeIndex | number | 0 | active image index | false | | zIndex | number | 1000 | Viewer css z-index | false | | container | HTMLElement | null | set parent node(inline mode) | false | | drag | boolean | true | whether to drag image | false | | attribute | boolean | true | whether to show image attribute | false | | zoomable | boolean | true | whether to show 'zoom' button | false | | rotatable | boolean | true | whether to show 'rotate' button | false | | scalable | boolean | true | whether to show 'scale' button | false | | onMaskClick | (e) => void | - | callback function when mask is clicked | false | | downloadable | boolean | false | whether to show 'download' | false | | noClose | boolean | false | to not render close button | false | | noNavbar | boolean | false | to not render the navbar | false | | noToolbar | boolean | false | to not render the toolbar | false | | noImgDetails | boolean | false | to not render image detail (WxH) | false | | noFooter | boolean | false | to not render the entire footer | false | | changeable | boolean | true | wheather to show change button | false | | customToolbar | (defaultToolbarConfigs: ToolbarConfig[]) => ToolbarConfig[] | - | customer toolbar | false | | zoomSpeed | number | 0.05 | zoom speed | false | | defaultSize | ViewerImageSize | - | default image size | false | | defaultImg | viewerdefaultimg | - | if load img failed, show default img | false | | disableKeyboardSupport | boolean | false | disable keyboard support | false | | noResetZoomAfterChange | boolean | false | preserve zoom after image change | false | | noLimitInitializationSize | boolean | false | no limit image initialization size | false | | defaultScale | number | 1 | set default scale | false | | onChange | (activeImage: ImageDecorator, index: number) => void | - | callback when image change | false | | loop | boolean | true | whether enable image loop | false | | disableMouseZoom | boolean | false | whether disable mouse zoom | false | | downloadInNewWindow | boolean | false | whether to download in a new window | false | | className | string | - | customized CSS class | false | | showTotal | boolean | true | whether to display the total number and range | false | | maxScale | number | - | maximum scaling | false | | minScale | number | 0.1 | minimum scaling | false |

ImageDecorator

| props | type | default | description | required | |-------------|--------------|---------|-----------------------------|----------| | src | string | - | image source | true | | alt | string | - | image description | false | | downloadUrl | string | - | image downlaod url | false | | defaultSize | ViewerImageSize | - | image size | false |

ViewerImageSize

| props | type | default | description | required | |-------------|--------------|---------|-----------------------------|----------| | width | number | - | image width | true | | height | number | - | image height | true |

ViewerDefaultImg

| props | type | default | description | required | |-------------|--------------|---------|-----------------------------|----------| | src | number | - | image source | true | | width | number | - | image width | false | | height | number | - | image height | false |

ToolbarConfig

| props | type | default | description | required | |-------------|--------------|---------|-----------------------------|----------| | key | string | - | tool key | true | | render | React.ReactNode | - | tool render | false | | onClick | function | - | callback function when action is clicked | false |

SuccessCallback

| props | type | default | description | required | |-------------|--------------|---------|-----------------------------|----------| | image | string | - | image | false |

Keyboard support

• Esc: Close viewer.
• ←: View the previous image.
• →: View the next image.
• ↑: Zoom in the image.
• ↓: Zoom out the image.
• Ctrl + 1: Reset the image.
• Ctrl + ←: Rotate left the image.
• Ctrl + →: Rotate right the image.

License

MIT