Fix error with png-js

Author: inokawa

package-lock.json

@@ -60,7 +60,6 @@
     "linebreak": "^1.1.0",
     "mdast-util-definitions": "^6.0.0",
     "pako": "^2.1.0",
-    "png-js": "^1.0.0",
     "readable-stream": "^4.7.0",
     "svg-to-pdfkit": "^0.1.8",
     "unist-util-visit": "^5.0.0"
@@ -88,6 +87,7 @@
     "pdf-to-img": "^5.0.0",
     "pdfjs-dist": "^5.4.296",
     "pdfkit": "0.17.2",
+    "png-js": "^1.0.0",
     "react": "^19.2.1",
     "react-dom": "^19.2.1",
     "react-is": "^19.2.1",

package.json

@@ -23,7 +23,7 @@ const injectString = (fontPath, isBase64) => {
 
 const publishDir = dirname(pkg.module);
 
-for (const [k, v] of Object.entries(pdfkitPkg.dependencies)) {
+for (const [k, v] of Object.entries(pdfkitPkg.dependencies).filter(([p]) => p !== 'png-js')) {
   const dep = pkg.dependencies[k];
   if (!dep || dep !== v) {
     throw new Error(`${pkg.name} doesn't have ${k}@${v} in dependencies`)
@@ -35,7 +35,7 @@ const externals = [
   ...Object.keys(pkg.devDependencies),
   ...Object.keys(pkg.imports),
   ...Object.keys(pdfkitPkg.dependencies)
-].filter(d => !d.startsWith('pdfkit'));
+].filter(d => !d.startsWith('pdfkit') && !d.startsWith('png-js'));
 
 const hasBuffer = (id) => id === 'index';
 

rollup.config.js

@@ -6,4 +6,12 @@ export default {
   deflateSync: (input: ArrayBuffer) => {
     return Buffer.from(pako.deflate(input));
   },
+  inflate: (buffer: Buffer, cb: (error: Error | null, result: NonSharedBuffer) => void) => {
+    try {
+      const result = pako.inflate(buffer);
+      cb(null, Buffer.from(result));
+    } catch (err) {
+      cb(err as Error, null!)
+    }
+  }
 };

src/shim/zlib/browser.ts

@@ -1,2 +1,2 @@
-import { deflateSync } from "node:zlib";
-export default { deflateSync };
+import { deflateSync, inflate } from "node:zlib";
+export default { deflateSync, inflate };