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astro/packages/integrations/image/components/Picture.astro
Tony Sullivan a397b981f5
Fixes type definitions @astrojs/image and adds more documentation to the README (#4045)
* WIP: moving to a static .d.ts types file

* fixing named exports for getImage and getPicture

* removing the exports.astro map for now

* WIP: adding readme docs for component attributes

* Adding docs for getImage and getPicture

* leaning fully on TSC to build .d.ts files

* finally found the solution for proper ESM import types

* adding a note to the README for tsconfig updates

* chore: add changesets

* typo

* docs: removing the "Images in Markdown" example

* removing the need for publishing src to NPM

* fix: make type re-export explicit

* updating image module defs to match InputFormat

* using astro syntax highlighting for README code blocks

* nit: missing backtick in README

* make sure Astro component directives aren't recommended twice
2022-07-27 15:39:05 +00:00

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Text

---
import { getPicture } from '../dist/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 }>;
alt?: string;
sizes: HTMLImageElement['sizes'];
widths: number[];
formats?: OutputFormat[];
}
interface RemoteImageProps extends
Omit<HTMLAttributes, 'src' | 'width' | 'height'>,
TransformOptions,
Pick<ImgHTMLAttributes, 'loading' | 'decoding'> {
src: string;
alt?: string;
sizes: HTMLImageElement['sizes'];
widths: number[];
aspectRatio: TransformOptions['aspectRatio'];
formats?: OutputFormat[];
}
export type Props = LocalImageProps | RemoteImageProps;
const { src, alt, sizes, widths, aspectRatio, formats = ['avif', 'webp'], loading = 'lazy', decoding = 'async', ...attrs } = Astro.props as Props;
const { image, sources } = await getPicture({ src, widths, formats, aspectRatio });
---
<picture {...attrs}>
{sources.map(attrs => (
<source {...attrs} {sizes}>))}
<img {...image} {loading} {decoding} {alt} />
</picture>
<style>
img {
content-visibility: auto;
}
</style>