refactor(chat): share media image rendering

src/app/chat/components/chat-media-image.tsx

@@ -0,0 +1,104 @@
+"use client";
+/* eslint-disable @next/next/no-img-element */
+
+import Image from "next/image";
+import type { MouseEventHandler, ReactNode } from "react";
+import { useState } from "react";
+
+import {
+  isBrowserLocalChatImageSource,
+  normalizeChatImageSource,
+} from "@/lib/chat/chat_media_url";
+import { useCachedChatMediaUrl } from "@/lib/chat/use_cached_chat_media_url";
+
+export interface ChatMediaImageProps {
+  messageId?: string;
+  remoteUrl: string;
+  alt?: string;
+  className?: string;
+  nativeClassName?: string;
+  errorClassName?: string;
+  width?: number;
+  height?: number;
+  fill?: boolean;
+  sizes?: string;
+  showErrorFallback?: boolean;
+  onClick?: MouseEventHandler<HTMLImageElement>;
+  children?: ReactNode;
+}
+
+export function ChatMediaImage({
+  messageId,
+  remoteUrl,
+  alt = "",
+  className,
+  nativeClassName,
+  errorClassName,
+  width = 240,
+  height = 240,
+  fill = false,
+  sizes,
+  showErrorFallback = true,
+  onClick,
+  children,
+}: ChatMediaImageProps) {
+  const [errorSrc, setErrorSrc] = useState<string | null>(null);
+  const { mediaUrl, isUsingCachedMedia, reportMediaError } =
+    useCachedChatMediaUrl({
+      messageId,
+      remoteUrl,
+      kind: "image",
+    });
+
+  const src = normalizeChatImageSource(mediaUrl || remoteUrl);
+  const shouldUseNativeImage = isBrowserLocalChatImageSource(src);
+  const hasError = errorSrc === src;
+
+  const handleImageError = () => {
+    if (isUsingCachedMedia) {
+      reportMediaError();
+      return;
+    }
+    setErrorSrc(src);
+  };
+
+  if (hasError && showErrorFallback) {
+    return <div className={errorClassName}>🖼</div>;
+  }
+
+  return (
+    <>
+      {shouldUseNativeImage ? (
+        <img
+          className={nativeClassName ?? className}
+          src={src}
+          alt={alt}
+          onError={handleImageError}
+          onClick={onClick}
+        />
+      ) : fill ? (
+        <Image
+          className={className}
+          src={src}
+          alt={alt}
+          fill
+          sizes={sizes}
+          onError={handleImageError}
+          onClick={onClick}
+        />
+      ) : (
+        <Image
+          className={className}
+          src={src}
+          alt={alt}
+          width={width}
+          height={height}
+          sizes={sizes}
+          onError={handleImageError}
+          onClick={onClick}
+        />
+      )}
+      {hasError ? null : children}
+    </>
+  );
+}

src/app/chat/components/fullscreen-image-viewer.tsx

@@ -1,5 +1,4 @@
 "use client";
-/* eslint-disable @next/next/no-img-element */
 /**
  * FullscreenImageViewer 全屏图片查看器
  *
@@ -11,15 +10,9 @@
  *   - 双指缩放（CSS `touch-action: pinch-zoom`）
  */
 import { ChevronLeft } from "lucide-react";
-import Image from "next/image";
-import { useEffect, useState } from "react";
-
-import {
-  isBrowserLocalChatImageSource,
-  normalizeChatImageSource,
-} from "@/lib/chat/chat_media_url";
-import { useCachedChatMediaUrl } from "@/lib/chat/use_cached_chat_media_url";
+import { useEffect } from "react";
 
+import { ChatMediaImage } from "./chat-media-image";
 import styles from "./fullscreen-image-viewer.module.css";
 
 export interface FullscreenImageViewerProps {
@@ -39,14 +32,6 @@ export function FullscreenImageViewer({
   onUnlockImagePaywall,
   onClose,
 }: FullscreenImageViewerProps) {
-  const { mediaUrl, isUsingCachedMedia, reportMediaError } =
-    useCachedChatMediaUrl({
-      messageId,
-      remoteUrl: imageUrl,
-      kind: "image",
-    });
-  const [imageErrorSrc, setImageErrorSrc] = useState<string | null>(null);
-
   useEffect(() => {
     const handleKey = (e: KeyboardEvent) => {
       if (e.key === "Escape") onClose();
@@ -55,18 +40,6 @@ export function FullscreenImageViewer({
     return () => document.removeEventListener("keydown", handleKey);
   }, [onClose]);
 
-  const src = normalizeChatImageSource(mediaUrl || imageUrl);
-  const shouldUseNativeImage = isBrowserLocalChatImageSource(src);
-  const hasImageError = imageErrorSrc === src;
-
-  const handleImageError = () => {
-    if (isUsingCachedMedia) {
-      reportMediaError();
-      return;
-    }
-    setImageErrorSrc(src);
-  };
-
   if (imagePaywalled) {
     return (
       <div
@@ -75,23 +48,15 @@ export function FullscreenImageViewer({
         aria-modal="true"
         aria-label="Locked fullscreen image"
       >
-        {shouldUseNativeImage ? (
-          <img
-            src={src}
-            alt=""
-            className={`${styles.nativePaywallImage} ${styles.paywallImage}`}
-            onError={handleImageError}
-          />
-        ) : (
-          <Image
-            src={src}
-            alt=""
-            fill
-            sizes="(max-width: 540px) 100vw, 540px"
-            className={styles.paywallImage}
-            onError={handleImageError}
-          />
-        )}
+        <ChatMediaImage
+          messageId={messageId}
+          remoteUrl={imageUrl}
+          className={styles.paywallImage}
+          nativeClassName={`${styles.nativePaywallImage} ${styles.paywallImage}`}
+          fill
+          sizes="(max-width: 540px) 100vw, 540px"
+          showErrorFallback={false}
+        />
         <div className={styles.paywallScrim} aria-hidden="true" />
         <button
           type="button"
@@ -131,27 +96,15 @@ export function FullscreenImageViewer({
       >
         <ChevronLeft size={34} strokeWidth={2.5} aria-hidden="true" />
       </button>
-      {hasImageError ? (
-        <div className="error">🖼</div>
-      ) : shouldUseNativeImage ? (
-        <img
-          src={src}
-          alt=""
-          className={styles.viewerImage}
-          onError={handleImageError}
-          onClick={(event) => event.stopPropagation()}
-        />
-      ) : (
-        <Image
-          src={src}
-          alt=""
-          width={800}
-          height={800}
-          className={styles.viewerImage}
-          onError={handleImageError}
-          onClick={(event) => event.stopPropagation()}
-        />
-      )}
+      <ChatMediaImage
+        messageId={messageId}
+        remoteUrl={imageUrl}
+        className={styles.viewerImage}
+        errorClassName="error"
+        width={800}
+        height={800}
+        onClick={(event) => event.stopPropagation()}
+      />
     </div>
   );
 }

src/app/chat/components/image-bubble.tsx

@@ -1,5 +1,4 @@
 "use client";
-/* eslint-disable @next/next/no-img-element */
 /**
  * ImageBubble 图片气泡
  *
@@ -8,15 +7,8 @@
  *   - 点击 → 通知聊天页打开页内全屏查看器
  *   - 错误占位符（broken image icon）
  */
-import Image from "next/image";
-import { useState } from "react";
-
-import {
-  isBrowserLocalChatImageSource,
-  normalizeChatImageSource,
-} from "@/lib/chat/chat_media_url";
-import { useCachedChatMediaUrl } from "@/lib/chat/use_cached_chat_media_url";
 
+import { ChatMediaImage } from "./chat-media-image";
 import styles from "./image-bubble.module.css";
 
 export interface ImageBubbleProps {
@@ -32,26 +24,7 @@ export function ImageBubble({
   imagePaywalled = false,
   onOpenImage,
 }: ImageBubbleProps) {
-  const [errorSrc, setErrorSrc] = useState<string | null>(null);
-  const { mediaUrl, isUsingCachedMedia, reportMediaError } =
-    useCachedChatMediaUrl({
-      messageId,
-      remoteUrl: imageUrl,
-      kind: "image",
-    });
-
-  const src = normalizeChatImageSource(mediaUrl || imageUrl);
   const canOpen = Boolean(messageId && onOpenImage);
-  const shouldUseNativeImage = isBrowserLocalChatImageSource(src);
-  const error = errorSrc === src;
-
-  const handleImageError = () => {
-    if (isUsingCachedMedia) {
-      reportMediaError();
-      return;
-    }
-    setErrorSrc(src);
-  };
 
   const openImage = () => {
     if (!messageId || !onOpenImage) return;
@@ -73,28 +46,18 @@ export function ImageBubble({
       }}
       aria-label={canOpen ? "Open image in fullscreen" : undefined}
     >
-      {error ? (
-        <div className={styles.errorFallback}>🖼</div>
-      ) : shouldUseNativeImage ? (
-        <img
-          className={styles.image}
-          src={src}
-          alt=""
-          onError={handleImageError}
-        />
-      ) : (
-        <Image
-          className={styles.image}
-          src={src}
-          alt=""
-          width={240}
-          height={240}
-          onError={handleImageError}
-        />
-      )}
-      {!error && imagePaywalled ? (
-        <div className={styles.paywallOverlay} aria-hidden="true" />
-      ) : null}
+      <ChatMediaImage
+        messageId={messageId}
+        remoteUrl={imageUrl}
+        className={styles.image}
+        errorClassName={styles.errorFallback}
+        width={240}
+        height={240}
+      >
+        {imagePaywalled ? (
+          <div className={styles.paywallOverlay} aria-hidden="true" />
+        ) : null}
+      </ChatMediaImage>
     </div>
   );
 }