The InlineImage field represents an image input. This field supports drag and drop upload, or via clicking on the image to select media from the local filesystem.

Definition

Below is a simple example of how InlineImage could be implemented in in an Inline Form.

import ReactMarkdown from 'react-markdown'
import { useLocalForm } from 'tinacms'
import { InlineForm, InlineImage } from 'react-tinacms-inline'

// Example 'Page' Component
export function Page(props) {
  const [data, form] = useLocalForm(props.data)
  return (
    <InlineForm form={form}>
      <InlineImage
        name="hero_image"
        parse={filename => `/images/${filename}`}
        uploadDir={() => '/public/images/'}
        previewSrc={formValues => {}}
      />
    </InlineForm>
  )
}

There are two ways to use InlineImage, with and without children. If no children are passed, InlineImage will render a default img element. However, you may want more control over the image behavior, in which case you can pass children to InlineImage.

Options

Interface

interface InlineImageProps {
  name: string
  parse(filename: string): string
  uploadDir(form: Form): string
  previewSrc(formValues: any): string
  focusRing?: boolean
  children?: any
}

The parse function handles how the path gets written in the source data when a new image is uploaded. parse is passed the filename of the newly uploaded image — image.jpg. A simple return value could look something like this:

parse: filename => `/example-dir/${filename}`

The path depends on where images live in your project structure. uploadDir sets where those new images should live:

uploadDir: () => `/example-dir`

The previewSrc provides a path for the image when inline editing is active (a.k.a when the CMS is enabled). When inline editing is not active (cms.enabled === false), the image will reference the path in the source data. previewSrc is passed current form values as its first argument.

Examples

previewSrc with blocks

If using InlineImage as a block, use these values, along with the block index to target the proper image source from the data.

/**
 * `index` is passed as props to the block component
 * that renders the inline image
 */
function ImageBlock({ index }) {
  return (
    <BlocksControls index={index} focusRing={{ offset: 0 }} insetControls>
      <div className="image-block">
        <InlineImage
          name="src"
          parse={filename => `/assets/${filename}`}
          uploadDir={() => '/public/assets'}
          previewSrc={formValues => `${formValues.blocks[index].left.src}`}
          focusRing={false}
        />
      </div>
    </BlocksControls>
  )
}

The return value should be the entire path to the image from the source data — e.g. /example-dir/image.jpg.

Accessing block index in the template fields

Using the index in the previewSrc to target the correct block is very helpful. While index is passed to the Block Component, it is not directly available in the Block Template.

One way to work around this is to access the second argument, input. Manipulate the form input data to get the index of the current field.

See the example below for a variation on getting the block index:

components/Images.js

export const imagesBlock = {
  Component: Images,
  template: {
    //... Other block template config
    fields: [
      {
        name: 'left.src',
        label: 'Left-Hand Image',
        component: 'image',
        parse: filename => `/${filename}`,
        uploadDir: () => '/',
        previewSrc: (formValues, input) => {
          /**
           * Get index from field input. Assumes the block
           * is only one level deep
           */
          const index = input.field.name.split('.')[1]
          /**
           * Use that index to target the correct
           * block in `formValues`
           */
          const currentBlockImage = formValues.blocks[index].left.src
          return currentBlockImage
        },
        focusRing: false,
      },
      {
        name: 'left.alt',
        label: 'Left-Hand Image Alt Text',
        component: 'text',
      },
      {
        name: 'right.src',
        label: 'Right-Hand Image',
        component: 'image',
        parse: filename => `/${filename}`,
        uploadDir: () => '/',
        previewSrc: (formValues, input) => {
          const index = input.field.name.split('.')[1]
          const currentBlockImage = formValues.blocks[index].right.src
          return currentBlockImage
        },
        focusRing: false,
      },
      {
        name: 'right.alt',
        label: 'Right-Hand Image Alt Text',
        component: 'text',
      },
    ],
  },
}

Passing children with Gatsby Image

Below is an example of how you could pass children as a to InlineImage to work with Gatsby Image. Notice how children need to be passed via render props.

The return value from the previewSrc function is passed as a prop. You can use this as the Img src when the CMS is enabled. This allows it so when new images are uploaded, the correct previewSrc should render. A fallback src should be provided based on the form data — this will be the src when the CMS is disabled.

Read more on proper image paths in Gatsby to get context on the parse & uploadDir configuration.

import {
  Inlineform,
  InlineImage,
  InlineTextareaField,
} from 'react-tinacms-inline'
import { useRemarkForm } from 'gatsby-tinacms-remark'
import { usePlugin } from 'tinacms'
import Img from 'gatsby-image'

// Using InlineImage with Gatsby Image
export function Hero({ data }) {
  const [post, form] = useRemarkForm(data.markdownRemark)

  usePlugin(form)

  return (
    <InlineForm form={form}>
      <InlineImage
        name="rawFrontmatter.thumbnail"
        parse={filename => (filename ? `./${filename}` : null)}
        uploadDir={blogPost => {
          const postPathParts = blogPost.initialValues.fileRelativePath.split(
            '/'
          )

          const postDirectory = postPathParts
            .splice(0, postPathParts.length - 1)
            .join('/')

          return postDirectory
        }}
        previewSrc={formValues => {
          const preview =
            formValues.frontmatter.thumbnail.childImageSharp.fluid.src
          return preview
        }}
      >
        {props => (
          <Img
            fluid={
              props?.previewSrc ||
              post.frontmatter.thumbnail.childImageSharp.fluid
            }
            alt="Gatsby can't find me"
            {...props}
          />
        )}
      </InlineImage>
      <h1>
        <InlineTextareaField name="rawFrontmatter.title" />
      </h1>
    </InlineForm>
  )
}