🐛 fix(vscode): 代码阅读注释里的链接指到别的文件时用预览打开，和 ⌘ 点击跳到定义走同一条路

vscode/src/codeReader/index.ts

@@ -9,6 +9,7 @@ import { shellCommandRules } from './commands/shellCommands'
 import { systemCommandRules } from './commands/systemCommands'
 import { BlockFilter } from './editor/blockFilter'
 import { NEXT_OCCURRENCE, PREVIOUS_OCCURRENCE } from './editor/occurrenceNavigation'
+import { languageOf, openingFor } from './editor/openTarget'
 import { PATH_PREVIEW_SCHEME } from './editor/pathPreview'
 import { PREVIEW_VIEW_TYPE, PreviewEditorProvider } from './editor/previewEditor'
 import { showPreview, showSource } from './editor/switchEditor'
@@ -59,20 +60,10 @@ const LANGUAGE_IDS_CONTEXT = 'superpowers.codeReader.languageIds'
 const FILES_VIEW = 'superpowers.codeReader.files'
 const OPEN_COMMAND = 'superpowers.codeReader.open'
 
-/** 按 VS Code 的判断（含 files.associations）取文件的 languageId；图片等二进制文件打不开成文本，返回 undefined。 */
-async function languageOf(uri: Uri): Promise<string | undefined> {
-  try {
-    return (await workspace.openTextDocument(uri)).languageId
-  }
-  catch {
-    return undefined
-  }
-}
-
-/** 侧栏点文件：语言受支持就用预览打开，否则用普通编辑器。 */
+/** 侧栏点文件：语言受支持就用预览打开，否则用 VS Code 默认的打开方式（见 openingFor）。 */
 async function openFile(uri: Uri, registry: CodeReaderRegistry): Promise<void> {
-  const languageId = await languageOf(uri)
-  if (languageId !== undefined && registry.languageFor(languageId))
+  const opening = openingFor(await languageOf(uri), languageId => registry.languageFor(languageId) !== undefined)
+  if (opening.kind === 'preview')
     // 和 vscode.open 一样按「预览标签」打开（用户关了 workbench.editor.enablePreview 时 VS Code 自会固定）
     await commands.executeCommand('vscode.openWith', uri, PREVIEW_VIEW_TYPE, { preview: true })
   else