feat(editor): seed Find from selected text (#9982)

src/renderer/src/components/editor/DiffSectionBody.tsx

@@ -10,6 +10,7 @@ import type { DiffSection } from './diff-section-types'
 import { translate } from '@/i18n/i18n'
 import { LargeDiffFallback } from './LargeDiffFallback'
 import { buildDiffEditorWordWrapOptions } from './diff-editor-word-wrap-options'
+import { monacoFindOptions } from './monaco-find-options'
 
 const ImageDiffViewer = lazy(() => import('./ImageDiffViewer'))
 
@@ -198,11 +199,7 @@ export function DiffSectionBody({
             renderOverviewRuler: false,
             scrollbar: combinedDiffSectionScrollbarOptions,
             hideUnchangedRegions: { enabled: true },
-            find: {
-              addExtraSpaceOnTop: false,
-              autoFindInSelection: 'never',
-              seedSearchStringFromSelection: 'never'
-            }
+            find: monacoFindOptions
           }}
         />
       )}

src/renderer/src/components/editor/DiffViewer.tsx

@@ -26,6 +26,7 @@ import type { DiffViewerProps } from './diff-viewer-props'
 import { buildDiffEditorWordWrapOptions } from './diff-editor-word-wrap-options'
 import { useDiffEditorRegistration } from './diff-navigation-context'
 import { preserveDiffViewStateAcrossModelSwaps } from './diff-model-swap-view-state'
+import { monacoFindOptions } from './monaco-find-options'
 
 export default function DiffViewer({
   modelKey,
@@ -429,11 +430,7 @@ export default function DiffViewer({
               renderOverviewRuler: true,
               scrollbar: diffEditorScrollbarOptions,
               padding: { top: 0 },
-              find: {
-                addExtraSpaceOnTop: false,
-                autoFindInSelection: 'never',
-                seedSearchStringFromSelection: 'never'
-              }
+              find: monacoFindOptions
             }}
           />
         )}

src/renderer/src/components/editor/MonacoEditor.tsx

@@ -65,6 +65,7 @@ import {
   isMonacoAutoHeightCapped
 } from './monaco-auto-height'
 import { installMonacoE2EProbe } from './monaco-e2e-probe'
+import { monacoFindOptions } from './monaco-find-options'
 
 type MonacoEditorProps = {
   fileId: string
@@ -848,11 +849,7 @@ export default function MonacoEditor({
           smoothScrolling: true,
           cursorSmoothCaretAnimation: 'off',
           padding: { top: 0 },
-          find: {
-            addExtraSpaceOnTop: false,
-            autoFindInSelection: 'never',
-            seedSearchStringFromSelection: 'never'
-          },
+          find: monacoFindOptions,
           // Why: Monaco owns its rendered line surface, so align its selection-clipboard with the app opt-out (the global DOM hook can't).
           selectionClipboard: settings?.primarySelectionMiddleClickPaste ?? isLinuxUserAgent()
         }}

src/renderer/src/components/editor/monaco-find-options.test.ts

@@ -0,0 +1,12 @@
+import { describe, expect, it } from 'vitest'
+import { monacoFindOptions } from './monaco-find-options'
+
+describe('monacoFindOptions', () => {
+  it('seeds Find only from an explicit selection without changing its layout or scope', () => {
+    expect(monacoFindOptions).toEqual({
+      addExtraSpaceOnTop: false,
+      autoFindInSelection: 'never',
+      seedSearchStringFromSelection: 'selection'
+    })
+  })
+})

src/renderer/src/components/editor/monaco-find-options.ts

@@ -0,0 +1,7 @@
+import type { editor } from 'monaco-editor'
+
+export const monacoFindOptions = {
+  addExtraSpaceOnTop: false,
+  autoFindInSelection: 'never',
+  seedSearchStringFromSelection: 'selection'
+} satisfies editor.IEditorFindOptions