File size: 4,952 Bytes
f0743f4 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 | import { useState, useEffect, useCallback } from 'react';
import { Maximize2 } from 'lucide-react';
import { FileSources } from 'librechat-data-provider';
import { OGDialog, OGDialogContent } from '@librechat/client';
import ProgressCircle from './ProgressCircle';
import SourceIcon from './SourceIcon';
import { cn } from '~/utils';
type styleProps = {
backgroundImage?: string;
backgroundSize?: string;
backgroundPosition?: string;
backgroundRepeat?: string;
};
interface CloseModalEvent {
stopPropagation: () => void;
preventDefault: () => void;
}
const ImagePreview = ({
imageBase64,
url,
progress = 1,
className = '',
source,
alt = 'Preview image',
}: {
imageBase64?: string;
url?: string;
progress?: number;
className?: string;
source?: FileSources;
alt?: string;
}) => {
const [isModalOpen, setIsModalOpen] = useState(false);
const [isHovered, setIsHovered] = useState(false);
const [previousActiveElement, setPreviousActiveElement] = useState<Element | null>(null);
const openModal = useCallback(() => {
setPreviousActiveElement(document.activeElement);
setIsModalOpen(true);
}, []);
const closeModal = useCallback(
(e: CloseModalEvent): void => {
setIsModalOpen(false);
e.stopPropagation();
e.preventDefault();
if (
previousActiveElement instanceof HTMLElement &&
!previousActiveElement.closest('[data-skip-refocus="true"]')
) {
previousActiveElement.focus();
}
},
[previousActiveElement],
);
const handleKeyDown = useCallback(
(e: KeyboardEvent) => {
if (e.key === 'Escape') {
closeModal(e);
}
},
[closeModal],
);
useEffect(() => {
if (isModalOpen) {
document.addEventListener('keydown', handleKeyDown);
document.body.style.overflow = 'hidden';
const closeButton = document.querySelector('[aria-label="Close full view"]') as HTMLElement;
if (closeButton) {
setTimeout(() => closeButton.focus(), 0);
}
}
return () => {
document.removeEventListener('keydown', handleKeyDown);
document.body.style.overflow = 'unset';
};
}, [isModalOpen, handleKeyDown]);
const baseStyle: styleProps = {
backgroundSize: 'cover',
backgroundPosition: 'center',
backgroundRepeat: 'no-repeat',
};
const imageUrl = imageBase64 ?? url ?? '';
const style: styleProps = imageUrl
? {
...baseStyle,
backgroundImage: `url(${imageUrl})`,
}
: baseStyle;
if (typeof style.backgroundImage !== 'string' || style.backgroundImage.length === 0) {
return null;
}
const radius = 55;
const circumference = 2 * Math.PI * radius;
const offset = circumference - progress * circumference;
const circleCSSProperties = {
transition: 'stroke-dashoffset 0.3s linear',
};
return (
<>
<div
className={cn('relative size-14 rounded-xl', className)}
onMouseEnter={() => setIsHovered(true)}
onMouseLeave={() => setIsHovered(false)}
>
<button
type="button"
className="size-full overflow-hidden rounded-xl"
style={style}
aria-label={`View ${alt} in full size`}
aria-haspopup="dialog"
onClick={(e) => {
e.preventDefault();
e.stopPropagation();
openModal();
}}
/>
{progress < 1 ? (
<ProgressCircle
circumference={circumference}
offset={offset}
circleCSSProperties={circleCSSProperties}
aria-label={`Loading progress: ${Math.round(progress * 100)}%`}
/>
) : (
<div
className={cn(
'absolute inset-0 flex transform-gpu cursor-pointer items-center justify-center rounded-xl transition-opacity duration-200 ease-in-out',
isHovered ? 'bg-black/20 opacity-100' : 'opacity-0',
)}
onClick={(e) => {
e.stopPropagation();
openModal();
}}
aria-hidden="true"
>
<Maximize2
className={cn(
'size-5 transform-gpu text-white drop-shadow-lg transition-all duration-200',
isHovered ? 'scale-110' : '',
)}
/>
</div>
)}
<SourceIcon source={source} aria-label={source ? `Source: ${source}` : undefined} />
</div>
<OGDialog open={isModalOpen} onOpenChange={setIsModalOpen}>
<OGDialogContent
showCloseButton={false}
className="w-11/12 overflow-x-auto bg-transparent p-0 sm:w-auto"
disableScroll={false}
>
<img
src={imageUrl}
alt={alt}
className="max-w-screen h-full max-h-screen w-full object-contain"
/>
</OGDialogContent>
</OGDialog>
</>
);
};
export default ImagePreview;
|