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astro/packages/integrations/image/components/Picture.astro
Emmanuel Chucks ed2dfdae5b
fix: updates <Picture /> to pass HTML attributes down to the <img /> element (#5038)
* fix: also pass attrs to underlying img

`class` for direct img styling, `width` & `height` to prevent layout shift, etc need to be passed to the underlying img tag to work.

* remove redundant attr from picture tag

* revert to previous commit

- seemed to break some tests
- can't deal with fixing that right now, maybe later

* only passing attributes to the img

* adding a note to the README

* chore: add changeset

Co-authored-by: Tony Sullivan <tony.f.sullivan@outlook.com>
2022-10-20 19:42:36 +00:00

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---
import { getPicture } from '../dist/index.js';
import { warnForMissingAlt } from './index.js';
import type { ImgHTMLAttributes, HTMLAttributes } from './index.js';
import type { ImageMetadata, OutputFormat, TransformOptions } from '../dist/index.js';
interface LocalImageProps
extends Omit<HTMLAttributes, 'src' | 'width' | 'height'>,
Omit<TransformOptions, 'src'>,
Pick<astroHTML.JSX.ImgHTMLAttributes, 'loading' | 'decoding'> {
src: ImageMetadata | Promise<{ default: ImageMetadata }>;
/** Defines an alternative text description of the image. Set to an empty string (alt="") if the image is not a key part of the content (it's decoration or a tracking pixel). */
alt: string;
sizes: HTMLImageElement['sizes'];
widths: number[];
formats?: OutputFormat[];
}
interface RemoteImageProps
extends Omit<HTMLAttributes, 'src' | 'width' | 'height'>,
TransformOptions,
Pick<ImgHTMLAttributes, 'loading' | 'decoding'> {
src: string;
/** Defines an alternative text description of the image. Set to an empty string (alt="") if the image is not a key part of the content (it's decoration or a tracking pixel). */
alt: string;
sizes: HTMLImageElement['sizes'];
widths: number[];
aspectRatio: TransformOptions['aspectRatio'];
formats?: OutputFormat[];
background: TransformOptions['background'];
}
export type Props = LocalImageProps | RemoteImageProps;
const {
src,
alt,
sizes,
widths,
aspectRatio,
fit,
background,
position,
formats = ['avif', 'webp'],
loading = 'lazy',
decoding = 'async',
...attrs
} = Astro.props as Props;
if (alt === undefined || alt === null) {
warnForMissingAlt();
}
const { image, sources } = await getPicture({
src,
widths,
formats,
aspectRatio,
fit,
background,
position,
});
delete image.width;
delete image.height;
---
<picture>
{sources.map((attrs) => <source {...attrs} {sizes} />)}
<img {...image} {loading} {decoding} {alt} {...attrs} />
</picture>
<style>
img {
content-visibility: auto;
}
</style>