修复画布图片信息复制

为图片信息弹窗增加复制信息按钮

复制内容仅包含当前可见元数据字段

补充图片信息复制回归测试和文档约定

docs/project-memory/shared-memory/decision-log.md

@@ -2835,7 +2835,7 @@
 ## 2026-06-16 图片画布图片信息页不展示生图 Prompt
 
 - 背景：图片画布中每张生成图片的信息页原来展示 `Prompt` 和复制 Prompt，但该字段可能是后端组装后的生图提示词，不适合作为用户可见的图片输入信息。
-- 决策：图片信息页删除生图 Prompt 展示和复制入口，改为展示生成时的用户面板输入快照，包括普通生成提示词、规范表单字段、角色设定、图标素材描述、修改要求，以及角色规范、常规参考图、图标规范和修改参考图等参考图卡片。旧数据或上传图片没有输入快照时显示 `-`，不得回退展示内部 Prompt。
+- 决策：图片信息页删除生图 Prompt 展示和复制入口，改为展示生成时的用户面板输入快照，包括普通生成提示词、规范表单字段、角色设定、图标素材描述、修改要求，以及角色规范、常规参考图、图标规范和修改参考图等参考图卡片，并只允许“复制信息”复制当前可见字段。旧数据或上传图片没有输入快照时显示 `-`，不得回退展示内部 Prompt。
 - 影响范围：`src/components/image-editor/ImageCanvasEditorView.tsx`、图片画布 layout snapshot、图片画布技术方案。
 - 验证方式：`npm run test -- src/components/image-editor/ImageCanvasEditorView.test.tsx` 应覆盖图片信息页无 `Prompt`、无 `复制Prompt`，并展示普通生成、角色生成、图标素材和修改结果的输入快照。
 - 关联文档：`docs/technical/【前端架构】图片画布编辑器MVP接入方案-2026-06-11.md`。

src/components/image-editor/ImageCanvasMetadataModalView.test.tsx

@@ -3,9 +3,14 @@
 import { fireEvent, render, screen, within } from '@testing-library/react';
 import { describe, expect, it, vi } from 'vitest';
 
+import * as clipboardService from '../../services/clipboard';
 import type { CanvasLayer } from './ImageCanvasEditorTypes';
 import { ImageCanvasMetadataModalView } from './ImageCanvasMetadataModalView';
 
+vi.mock('../../services/clipboard', () => ({
+  copyTextToClipboard: vi.fn(),
+}));
+
 function createLayer(overrides: Partial<CanvasLayer> = {}): CanvasLayer {
   return {
     id: 'layer-1',
@@ -67,6 +72,51 @@ describe('ImageCanvasMetadataModalView', () => {
     expect(within(dialog).getByText('generated/object.png')).toBeTruthy();
   });
 
+  it('copies the visible metadata snapshot without restoring internal prompt fields', async () => {
+    vi.mocked(clipboardService.copyTextToClipboard).mockResolvedValueOnce(true);
+
+    render(
+      <ImageCanvasMetadataModalView
+        layer={createLayer({
+          prompt: '内部组装 Prompt 不应复制',
+          model: 'gpt-image-2',
+          taskId: 'gpt-image-2-task-123',
+          objectKey: 'generated/object.png',
+          generationInputs: {
+            fields: [{ title: '生成提示词', value: '清爽游戏按钮' }],
+            references: [
+              {
+                title: '参考图',
+                label: '角色立绘',
+                refType: 'project-resource',
+                refId: 'resource-reference',
+              },
+            ],
+          },
+        })}
+        onClose={vi.fn()}
+      />,
+    );
+
+    const dialog = screen.getByRole('dialog', { name: '图片信息' });
+    fireEvent.click(within(dialog).getByRole('button', { name: '复制图片信息' }));
+
+    expect(clipboardService.copyTextToClipboard).toHaveBeenCalledWith(
+      [
+        '图片类型：生成图片',
+        '生成输入：\n生成提示词：清爽游戏按钮\n参考图：角色立绘 (项目资源 · resource-reference)',
+        'Model：gpt-image-2',
+        'Resolution：1024 x 768 px',
+        'Task：123',
+        'Object：generated/object.png',
+      ].join('\n'),
+    );
+    expect(clipboardService.copyTextToClipboard).not.toHaveBeenCalledWith(
+      expect.stringContaining('内部组装 Prompt 不应复制'),
+    );
+    expect(await within(dialog).findByText('已复制')).toBeTruthy();
+  });
+
   it('renders nanobanana2 instead of the raw Gemini image model id', () => {
     render(
       <ImageCanvasMetadataModalView

src/components/image-editor/ImageCanvasMetadataModalView.tsx

@@ -1,4 +1,8 @@
+import { useEffect } from 'react';
+
+import { CopyFeedbackButton } from '../common/CopyFeedbackButton';
 import { UnifiedModal } from '../common/UnifiedModal';
+import { useCopyFeedback } from '../common/useCopyFeedback';
 import type { CanvasLayer } from './ImageCanvasEditorTypes';
 import { formatTaskIdForDisplay } from './ImageCanvasExportModel';
 import {
@@ -16,10 +20,50 @@ function formatReferenceType(refType: 'project-resource' | 'asset') {
   return refType === 'project-resource' ? '项目资源' : '素材';
 }
 
+function formatLayerDurationForDisplay(layer: CanvasLayer) {
+  return formatCanvasDurationMetric(layer.durationSeconds).replace(
+    /^时长\s*/u,
+    '',
+  );
+}
+
+function formatGenerationInputsForCopy(layer: CanvasLayer) {
+  const fields = layer.generationInputs?.fields ?? [];
+  const references = layer.generationInputs?.references ?? [];
+
+  if (!fields.length && !references.length) {
+    return '-';
+  }
+
+  return [
+    ...fields.map((field) => `${field.title}：${field.value}`),
+    ...references.map(
+      (reference) =>
+        `${reference.title}：${reference.label} (${formatReferenceType(
+          reference.refType,
+        )} · ${reference.refId})`,
+    ),
+  ].join('\n');
+}
+
+function buildLayerMetadataCopyText(layer: CanvasLayer, mediaLabel: string) {
+  return [
+    `${mediaLabel}类型：${formatLayerImageType(layer)}`,
+    `生成输入：\n${formatGenerationInputsForCopy(layer)}`,
+    `Model：${layer.model ? getEditorImageModelDisplayName(layer.model) : '-'}`,
+    layer.mediaType === 'audio'
+      ? `时长：${formatLayerDurationForDisplay(layer)}`
+      : `Resolution：${layer.originalWidth} x ${layer.originalHeight} px`,
+    `Task：${formatTaskIdForDisplay(layer.taskId)}`,
+    `Object：${layer.objectKey ?? layer.assetObjectId ?? '-'}`,
+  ].join('\n');
+}
+
 export function ImageCanvasMetadataModalView({
   layer,
   onClose,
 }: ImageCanvasMetadataModalViewProps) {
+  const { copyState, copyText, resetCopyState } = useCopyFeedback();
   const mediaLabel =
     layer?.mediaType === 'audio'
       ? '音频'
@@ -28,6 +72,20 @@ export function ImageCanvasMetadataModalView({
         : layer?.mediaType === 'image-sequence'
           ? '序列帧'
         : '图片';
+  const metadataText = layer ? buildLayerMetadataCopyText(layer, mediaLabel) : '';
+
+  useEffect(() => {
+    resetCopyState();
+  }, [metadataText, resetCopyState]);
+
+  const copyMetadata = () => {
+    if (!metadataText) {
+      return;
+    }
+
+    void copyText(metadataText);
+  };
+
   return (
     <UnifiedModal
       open={Boolean(layer)}
@@ -37,6 +95,20 @@ export function ImageCanvasMetadataModalView({
       onClose={onClose}
       panelClassName="image-canvas-editor__metadata-dialog"
       bodyClassName="image-canvas-editor__metadata-body"
+      footerClassName="image-canvas-editor__metadata-footer"
+      footer={
+        layer ? (
+          <CopyFeedbackButton
+            state={copyState}
+            idleLabel="复制信息"
+            accessibleLabel={`复制${mediaLabel}信息`}
+            actionSurface="platform"
+            actionFullWidth
+            className="image-canvas-editor__metadata-copy-button sm:w-auto"
+            onClick={copyMetadata}
+          />
+        ) : null
+      }
     >
       {layer ? (
         <dl className="image-canvas-editor__metadata-grid">
@@ -90,10 +162,7 @@ export function ImageCanvasMetadataModalView({
             <>
               <dt>时长</dt>
               <dd>
-                {formatCanvasDurationMetric(layer.durationSeconds).replace(
-                  /^时长\s*/u,
-                  '',
-                )}
+                {formatLayerDurationForDisplay(layer)}
               </dd>
             </>
           ) : (

src/index.css

@@ -8418,6 +8418,9 @@ button.image-canvas-editor__reference-chip:disabled {
 
 .image-canvas-editor__metadata-body {
   padding: 0;
+  -webkit-touch-callout: default;
+  -webkit-user-select: text;
+  user-select: text;
 }
 
 .image-canvas-editor__generate-dialog-body {
@@ -8549,6 +8552,14 @@ button.image-canvas-editor__reference-chip:disabled {
   overflow-wrap: anywhere;
 }
 
+.image-canvas-editor__metadata-footer {
+  padding: 0.72rem 0.85rem;
+}
+
+.image-canvas-editor__metadata-copy-button {
+  justify-content: center;
+}
+
 @media (max-width: 760px) {
   .image-canvas-editor {
     flex-direction: column;