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fix: move Prism global setup to entry-point module

Browse Source 
The previous approach imported prismjs component files directly in
MarkdownComposer.tsx.  In Vite dev mode, each component is served
as a separate ESM module whose IIFE references a bare 'Prism' global
that doesn't exist yet, crashing the app.

Fix: create a dedicated prismSetup module that imports prismjs and
assigns globalThis.Prism, then import it from the renderer entry
point (main.tsx) before any component that loads @lexical/code-prism.
ESM evaluation order guarantees the global is set before the
tokenizer captures its reference.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
This commit is contained in:
David Kaya
2026-03-25 20:03:02 +01:00
co-authored by Copilot
parent 860876172e
commit 5dc86426b1
3 changed files with 16 additions and 23 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/renderer/components/MarkdownComposer.tsx
-23
View File
@@ -21,29 +21,6 @@ import {
$convertToMarkdownString,
} from '@lexical/markdown';
import { $isCodeNode, $createCodeNode, CodeNode } from '@lexical/code';
// Prism must be on `globalThis` before @lexical/code-prism initializes its
// tokenizer reference. Vite's dev-mode esbuild CJS shim can race the global
// assignment, so we force it here before importing the module.
import Prism from 'prismjs';
import 'prismjs/components/prism-clike';
import 'prismjs/components/prism-javascript';
import 'prismjs/components/prism-markup';
import 'prismjs/components/prism-markdown';
import 'prismjs/components/prism-c';
import 'prismjs/components/prism-css';
import 'prismjs/components/prism-objectivec';
import 'prismjs/components/prism-sql';
import 'prismjs/components/prism-python';
import 'prismjs/components/prism-rust';
import 'prismjs/components/prism-swift';
import 'prismjs/components/prism-typescript';
import 'prismjs/components/prism-java';
import 'prismjs/components/prism-cpp';
if (typeof globalThis !== 'undefined') {
// eslint-disable-next-line @typescript-eslint/no-explicit-any
(globalThis as any).Prism = Prism;
}
import { registerCodeHighlighting } from '@lexical/code-prism';
import {
$isListNode,
src/renderer/lib/prismSetup.ts
+15
View File
@@ -0,0 +1,15 @@
/**
* Ensures the PrismJS global is available before @lexical/code-prism
* captures its tokenizer reference.
*
* @lexical/code-prism reads `globalThis.Prism` at module-evaluation time.
* In Vite dev mode the esbuild CJS shim may not have set the global yet,
* so we force it here. This module must be imported before any module
* that transitively loads @lexical/code-prism.
*/
import Prism from 'prismjs';
if (typeof globalThis !== 'undefined' && !globalThis.Prism) {
// eslint-disable-next-line @typescript-eslint/no-explicit-any
(globalThis as any).Prism = Prism;
}
src/renderer/main.tsx
+1
View File
@@ -1,6 +1,7 @@
import { StrictMode } from 'react';
import { createRoot } from 'react-dom/client';
import '@renderer/lib/prismSetup';
import App from '@renderer/App';
import '@renderer/styles.css';