soapbox/app/soapbox/components/still-image.tsx

96 wiersze
2.7 KiB
TypeScript

import clsx from 'clsx';
import React, { useRef } from 'react';
import { useSettings } from 'soapbox/hooks';
interface IStillImage {
/** Image alt text. */
alt?: string
/** Extra class names for the outer <div> container. */
className?: string
/** URL to the image */
src: string
/** Extra CSS styles on the outer <div> element. */
style?: React.CSSProperties
/** Whether to display the image contained vs filled in its container. */
letterboxed?: boolean
/** Whether to show the file extension in the corner. */
showExt?: boolean
}
/** Renders images on a canvas, only playing GIFs if autoPlayGif is enabled. */
const StillImage: React.FC<IStillImage> = ({ alt, className, src, style, letterboxed = false, showExt = false }) => {
const settings = useSettings();
const autoPlayGif = settings.get('autoPlayGif');
const canvas = useRef<HTMLCanvasElement>(null);
const img = useRef<HTMLImageElement>(null);
const hoverToPlay = (
src && !autoPlayGif && (src.endsWith('.gif') || src.startsWith('blob:'))
);
const handleImageLoad = () => {
if (hoverToPlay && canvas.current && img.current) {
canvas.current.width = img.current.naturalWidth;
canvas.current.height = img.current.naturalHeight;
canvas.current.getContext('2d')?.drawImage(img.current, 0, 0);
}
};
/** ClassNames shared between the `<img>` and `<canvas>` elements. */
const baseClassName = clsx('block h-full w-full', {
'object-contain': letterboxed,
'object-cover': !letterboxed,
});
return (
<div
data-testid='still-image-container'
className={clsx(className, 'group relative isolate overflow-hidden')}
style={style}
>
<img
src={src}
alt={alt}
ref={img}
onLoad={handleImageLoad}
className={clsx(baseClassName, {
'invisible group-hover:visible': hoverToPlay,
})}
/>
{hoverToPlay && (
<canvas
ref={canvas}
className={clsx(baseClassName, {
'group-hover:invisible': hoverToPlay,
})}
/>
)}
{(hoverToPlay && showExt) && (
<div className='pointer-events-none absolute left-2 bottom-2 opacity-90 group-hover:hidden'>
<ExtensionBadge ext='GIF' />
</div>
)}
</div>
);
};
interface IExtensionBadge {
/** File extension. */
ext: string
}
/** Badge displaying a file extension. */
const ExtensionBadge: React.FC<IExtensionBadge> = ({ ext }) => {
return (
<div className='inline-flex items-center rounded bg-gray-100 px-2 py-0.5 text-sm font-medium text-gray-900 dark:bg-gray-800 dark:text-gray-100'>
{ext}
</div>
);
};
export default StillImage;