e04dd7dc2a
- vite: /uploads 代理指向源站根而非 /apnew 前缀,relative thumbnailUrl (/uploads/thumb…) 在 dev 下不再落到 SPA index.html - BubbleImage: 新增 fallbackSrc 候选链,缩略图加载失败时自动回退到绝对 thumbUrl/url,全部失败才显示占位符 - AlbumBubble / ImageLightbox: 缩略图传入绝对地址作为兜底 Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
69 lines
1.9 KiB
TypeScript
69 lines
1.9 KiB
TypeScript
import { ImageOff } from "lucide-react";
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import { useEffect, useMemo, useState } from "react";
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type BubbleImageProps = {
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src: string | undefined;
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/**
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* Optional absolute URL(s) to try if `src` fails to load. Useful when `src`
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* is an optimized-but-fragile thumbnail (e.g. a root-relative thumbnailUrl)
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* and we want to fall back to the reliable full-size asset before giving up.
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*/
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fallbackSrc?: string | (string | undefined)[];
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className?: string;
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loading?: "lazy" | "eager";
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};
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/**
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* Thumbnail <img> for message bubbles. Renders with an empty alt (decorative)
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* and, if every candidate source fails to load, falls back to a neutral
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* placeholder instead of the browser's broken-image box — which would otherwise
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* expose the raw file name via alt text.
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*/
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export function BubbleImage({
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src,
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fallbackSrc,
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className,
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loading,
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}: BubbleImageProps) {
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// Ordered, de-duplicated list of sources to attempt in turn.
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const candidates = useMemo(() => {
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const extra = Array.isArray(fallbackSrc) ? fallbackSrc : [fallbackSrc];
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return [src, ...extra].filter(
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(value, index, all): value is string =>
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!!value && all.indexOf(value) === index,
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);
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}, [src, fallbackSrc]);
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const [attempt, setAttempt] = useState(0);
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// Reset when the candidate set changes so a reused element re-attempts.
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useEffect(() => {
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setAttempt(0);
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}, [candidates]);
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const current = candidates[attempt];
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if (!current) {
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return (
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<div
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className={`flex items-center justify-center bg-gradient-to-br from-neutral-800 to-neutral-900 ${
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className ?? ""
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}`}
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aria-hidden
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>
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<ImageOff className="h-8 w-8 text-neutral-600" />
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</div>
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);
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}
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return (
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<img
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src={current}
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alt=""
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loading={loading}
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className={className}
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onError={() => setAttempt((i) => i + 1)}
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/>
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);
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}
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