fix(scene-fusion): refine UI layout and add result image preview modal

components/scene-fusion-dialog.tsx

@@ -27,7 +27,6 @@ export function SceneFusionDialog({ open, onOpenChange, onBatchAddToCanvas }: Sc
         <div className="h-full min-h-0 flex-1 bg-white">
           <div className="h-full">
             <SceneFusionView
-              onBack={() => onOpenChange(false)}
               onBatchAddToCanvas={onBatchAddToCanvas}
             />
           </div>

components/scene-fusion-view.tsx

@@ -14,6 +14,7 @@ import {
   Upload,
   Wand2,
   Eraser,
+  X,
 } from "lucide-react";
 import { toast } from "sonner";
 import { requestLongTaskResult } from "@/lib/client/long-task";
@@ -22,7 +23,7 @@ import { Button } from "@/components/ui/button";
 import { Input } from "@/components/ui/input";
 import { Label } from "@/components/ui/label";
 import { ScrollArea } from "@/components/ui/scroll-area";
-import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select";
+import { Select, SelectContent, SelectItem, SelectTrigger } from "@/components/ui/select";
 
 const fetcher = (url: string) => fetch(url).then((res) => res.json());
 const MAX_BATCH_ITEMS = 10;
@@ -47,7 +48,6 @@ interface ProcessItem {
 }
 
 interface SceneFusionViewProps {
-  onBack: () => void;
   initialProductImage?: string | null;
   initialProductName?: string;
   onBatchAddToCanvas?: (imageUrls: string[]) => void | Promise<void>;
@@ -121,7 +121,6 @@ function getModePrompt(mode: BatchMode) {
 }
 
 export function SceneFusionView({
-  onBack,
   initialProductImage,
   initialProductName,
   onBatchAddToCanvas,
@@ -154,6 +153,8 @@ export function SceneFusionView({
   const [randomPrompt, setRandomPrompt] = useState("");
 
   const [batchItems, setBatchItems] = useState<ProcessItem[]>([]);
+  const [previewImageUrl, setPreviewImageUrl] = useState<string | null>(null);
+  const [previewImageTitle, setPreviewImageTitle] = useState<string>("处理结果预览");
 
   const productInputRef = useRef<HTMLInputElement>(null);
   const sceneInputRef = useRef<HTMLInputElement>(null);
@@ -1137,19 +1138,23 @@ export function SceneFusionView({
     }
   };
 
+  const openResultPreview = (imageUrl: string, title: string) => {
+    setPreviewImageUrl(imageUrl);
+    setPreviewImageTitle(title);
+  };
+
+  const closeResultPreview = () => {
+    setPreviewImageUrl(null);
+  };
+
   return (
     <div className="flex h-full min-h-0 w-full flex-col bg-white dark:bg-zinc-950">
       <div className="flex min-h-0 flex-1 flex-col overflow-hidden md:flex-row">
         <div className="w-full md:w-[420px] border-r flex min-h-0 flex-col bg-white dark:bg-zinc-950 shrink-0">
-          <div className="border-b px-4 py-3 shrink-0 bg-white dark:bg-zinc-950">
-            <div className="flex items-center justify-between">
-              <div className="flex items-center gap-2">
-                <Layers className="w-4 h-4 text-primary" />
-                <span className="font-medium">批量处理</span>
-              </div>
-              <Button variant="ghost" size="sm" className="h-7 text-xs" onClick={onBack}>
-                返回
-              </Button>
+          <div className="border-b h-16 px-4 shrink-0 bg-white dark:bg-zinc-950 flex items-center">
+            <div className="flex items-center gap-2">
+              <Layers className="w-4 h-4 text-primary" />
+              <span className="font-medium">批量处理</span>
             </div>
           </div>
 
@@ -1159,22 +1164,21 @@ export function SceneFusionView({
                 <Label className="text-base font-medium">处理模式</Label>
                 <Select value={mode} onValueChange={(value) => setMode(value as BatchMode)} disabled={isProcessing}>
                   <SelectTrigger className="h-10 bg-white dark:bg-zinc-950">
-                    <SelectValue placeholder="请选择处理模式" />
+                    <span className="truncate">
+                      {selectedModeOption?.label || "请选择处理模式"}
+                    </span>
                   </SelectTrigger>
                   <SelectContent className="z-[30000] !bg-white !dark:bg-zinc-950">
                     {modeOptions.map((option) => (
-                      <SelectItem key={option.id} value={option.id}>
-                        {option.label}
+                      <SelectItem key={option.id} value={option.id} className="items-start py-2">
+                        <div className="flex flex-col">
+                          <span className="text-sm">{option.label}</span>
+                          <span className="text-xs text-muted-foreground">{option.description}</span>
+                        </div>
                       </SelectItem>
                     ))}
                   </SelectContent>
                 </Select>
-                {selectedModeOption && (
-                  <div className="rounded-lg border bg-muted/20 px-3 py-2">
-                    <div className="text-sm font-medium leading-5">{selectedModeOption.label}</div>
-                    <div className="text-xs text-muted-foreground mt-0.5">{selectedModeOption.description}</div>
-                  </div>
-                )}
                 <p className="text-xs text-muted-foreground">单次处理硬限制：最多 {MAX_BATCH_ITEMS} 张图片。</p>
               </div>
 
@@ -1591,7 +1595,12 @@ export function SceneFusionView({
           </div>
 
           <div className="p-4 border-t bg-background shrink-0">
-            <Button className="w-full" size="lg" onClick={startProcessing} disabled={isProcessing || !modeCanStart}>
+            <Button
+              className="w-full h-12 text-base font-semibold shadow-sm bg-primary text-primary-foreground hover:bg-primary/90 disabled:bg-muted disabled:text-muted-foreground disabled:opacity-100"
+              size="lg"
+              onClick={startProcessing}
+              disabled={isProcessing || !modeCanStart}
+            >
               {isProcessing ? (
                 <>
                   <Loader2 className="w-4 h-4 mr-2 animate-spin" />
@@ -1608,7 +1617,7 @@ export function SceneFusionView({
         </div>
 
         <div className="flex h-full min-h-0 flex-1 flex-col bg-white dark:bg-zinc-950">
-          <div className="p-4 border-b flex items-center justify-between bg-white dark:bg-zinc-950 shrink-0">
+          <div className="h-16 px-4 border-b flex items-center justify-between bg-white dark:bg-zinc-950 shrink-0">
             <h3 className="font-medium">处理结果</h3>
             {(completedResultItems.length > 0 || (resultAllFinished && onBatchAddToCanvas)) && (
               <div className="flex items-center gap-2">
@@ -1661,7 +1670,28 @@ export function SceneFusionView({
                         </span>
                       </div>
 
-                      <div className="aspect-[3/4] bg-muted/20 relative group">
+                      <div
+                        className={cn(
+                          "aspect-[3/4] bg-muted/20 relative group",
+                          item.status === "completed" && (item.result || item.originalUrl) && "cursor-zoom-in"
+                        )}
+                        onClick={() => {
+                          const previewUrl = item.originalUrl || item.result;
+                          if (item.status === "completed" && previewUrl) {
+                            openResultPreview(previewUrl, `任务 ${index + 1} 预览`);
+                          }
+                        }}
+                        onKeyDown={(event) => {
+                          if (event.key !== "Enter" && event.key !== " ") return;
+                          const previewUrl = item.originalUrl || item.result;
+                          if (item.status === "completed" && previewUrl) {
+                            event.preventDefault();
+                            openResultPreview(previewUrl, `任务 ${index + 1} 预览`);
+                          }
+                        }}
+                        role="button"
+                        tabIndex={item.status === "completed" && (item.result || item.originalUrl) ? 0 : -1}
+                      >
                         {item.result ? (
                           <img src={item.result} alt="处理结果" className="w-full h-full object-cover" />
                         ) : (
@@ -1691,11 +1721,21 @@ export function SceneFusionView({
                             <Button
                               size="icon"
                               variant="secondary"
-                              onClick={() => downloadImage(item.originalUrl || item.result!, `batch-${index + 1}.png`)}
+                              onClick={(event) => {
+                                event.stopPropagation();
+                                downloadImage(item.originalUrl || item.result!, `batch-${index + 1}.png`);
+                              }}
                             >
                               <Download className="w-4 h-4" />
                             </Button>
-                            <Button size="icon" variant="secondary" onClick={() => retrySingleItem(item)}>
+                            <Button
+                              size="icon"
+                              variant="secondary"
+                              onClick={(event) => {
+                                event.stopPropagation();
+                                retrySingleItem(item);
+                              }}
+                            >
                               <RefreshCw className="w-4 h-4" />
                             </Button>
                           </div>
@@ -1709,6 +1749,31 @@ export function SceneFusionView({
           </ScrollArea>
         </div>
       </div>
+      {previewImageUrl && (
+        <div
+          className="fixed inset-0 z-[31000] bg-black/80 backdrop-blur-sm flex items-center justify-center p-4"
+          onClick={closeResultPreview}
+        >
+          <div
+            className="relative w-full max-w-6xl max-h-[90vh] bg-background rounded-lg border shadow-xl overflow-hidden"
+            onClick={(event) => event.stopPropagation()}
+          >
+            <div className="flex h-12 items-center justify-between border-b px-4">
+              <span className="text-sm font-medium">{previewImageTitle}</span>
+              <Button size="icon" variant="ghost" onClick={closeResultPreview}>
+                <X className="w-4 h-4" />
+              </Button>
+            </div>
+            <div className="flex items-center justify-center bg-black/5 p-3">
+              <img
+                src={previewImageUrl}
+                alt={previewImageTitle}
+                className="max-h-[calc(90vh-72px)] w-auto max-w-full object-contain rounded"
+              />
+            </div>
+          </div>
+        </div>
+      )}
     </div>
   );
 }