Added error handling

firejune · Nov 15, 2017 · 4b59c11 · 4b59c11
1 parent 22c7866
commit 4b59c11
Showing 1 changed file with 10 additions and 2 deletions.
diff --git a/api.js b/api.js
@@ -3,15 +3,23 @@ const electron = require('electron')
 // devtools-extension install
 exports.install = () => {
   if (!electron.remote) {
-    throw new Error('React DevTools cannot be installed from within the main process.')
+    throw new Error('React DevTools can only be installed from an renderer process.')
   }
 
+  const extensions = electron.remote.BrowserWindow.getDevToolsExtensions()
+  if (extensions && extensions['React Developer Tools']) return
+
+
+  const path = electron.remote.BrowserWindow.addDevToolsExtension(__dirname)
   console.log(`Installing React DevTools from ${__dirname}`)
 
-  return electron.remote.BrowserWindow.addDevToolsExtension(__dirname)
+  return path
 }
 
 // devtools-extension uninstall
 exports.uninstall = () => {
+  if (!electron.remote) {
+    throw new Error('React DevTools can only be uninstalled from an renderer process.')
+  }
   return electron.remote.BrowserWindow.removeDevToolsExtension('React Developer Tools')
 }