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yashim/fix: LCP for eager loading Images #2472

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merged 1 commit into from
Jan 11, 2022
Merged

yashim/fix: LCP for eager loading Images #2472

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17 changes: 14 additions & 3 deletions src/components/elements/query-image.tsx
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
import React from 'react'
import styled from 'styled-components'
import styled, { css } from 'styled-components'
import { GatsbyImage, getImage, ImageDataLike } from 'gatsby-plugin-image'

type QueryImageProps = {
Expand All @@ -15,28 +15,39 @@ type ImageWrapperProps = {
width: string
height: string
className?: string
loading: 'eager' | 'lazy'
}

export const ImageWrapper = styled.div<ImageWrapperProps>`
& .gatsby-image-wrapper {
width: ${(props) => props.width || '100%'};
height: ${(props) => props.height};
}
.gatsby-image-wrapper [data-main-image] {
${(props) => {
if (props.loading === 'eager') {
return css`
transition: none;
opacity: 1;
`
}
}}
}
`

const QueryImage = ({
alt,
className,
data,
height,
loading,
loading = 'lazy',
width,
...props
}: QueryImageProps) => {
const image = getImage(data)
if (data) {
return (
<ImageWrapper width={width} height={height} className={className}>
<ImageWrapper loading={loading} width={width} height={height} className={className}>
<GatsbyImage image={image} alt={alt} loading={loading} {...props} />
</ImageWrapper>
)
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