From bcec9636292bbbd0e793ee1e188251bc689d638f Mon Sep 17 00:00:00 2001
From: Brandon Smith <brandon@16cards.com>
Date: Mon, 21 Nov 2016 10:14:46 -0500
Subject: [PATCH] Support running realm-js in Electron renderer (#667)

Electron is a combination of a node and
Chromium processes. Chromium processes
can have node bindings enabled and can
therefore run most npm modules seamlessly.

The current `lib/index.js` bootstrapping
logic results in a ReferenceError on the
following statement:

    typeof Realm != 'undefined'

Thus, checking whether running under node
first allows realm-js to run inside the
Electron renderer (Chromium) process.
---
 lib/index.js | 34 +++++++++++++++++++++++-----------
 1 file changed, 23 insertions(+), 11 deletions(-)

diff --git a/lib/index.js b/lib/index.js
index b176d768..7c2273a8 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -22,26 +22,38 @@ function node_require(module) {
     return require(module);
 }
 
-var realmConstructor;
+function isNode() {
+    return typeof process == 'object' && (('' + process) == '[object process]' || typeof jest == 'object')
+}
 
-if (typeof Realm != 'undefined') {
-    // The global Realm constructor should be available on device (using JavaScriptCore).
-    realmConstructor = Realm;  // eslint-disable-line no-undef
-// eslint-disable-next-line
-} else if (typeof window != 'undefined') {
-    // The userAgent will be defined when running in a browser (such as Chrome debugging mode).
-    realmConstructor = require('./browser').default; // (exported as ES6 module)
-// eslint-disable-next-line
-} else if (typeof process == 'object' && (('' + process) == '[object process]' || typeof jest == 'object')) {
+// function isElectronRenderer() {
+//     return isNode() && process.type === 'renderer'
+// }
+
+var realmConstructor;
+if (isNode()) {
     // If process is defined, we're running in node.
     require('./submit-analytics')('Run'); 
 
     // Prevent React Native packager from seeing this module.
     var binary = node_require('node-pre-gyp');
     var path = node_require('path');
-    var binding_path = binary.find(path.resolve(path.join(__dirname,'../package.json')));
+    var pkg = path.resolve(path.join(__dirname,'../package.json'));
+    var binding_path = binary.find(pkg);
     realmConstructor = require(binding_path).Realm;
 } else {
+    if (typeof Realm != 'undefined') {
+        // The global Realm constructor should be available on device (using JavaScriptCore).
+        realmConstructor = Realm;  // eslint-disable-line no-undef
+    // eslint-disable-next-line
+    } else if (typeof window != 'undefined') {
+        // The userAgent will be defined when running in a browser (such as Chrome debugging mode).
+        realmConstructor = require('./browser').default; // (exported as ES6 module)
+    // eslint-disable-next-line
+    }
+}
+
+if (!realmConstructor) {
     throw new Error('Missing Realm constructor - please ensure RealmReact framework is included!');
 }