From 00e9f3c6ae2d4092f0c9270d113d7e6dd47ddf0b Mon Sep 17 00:00:00 2001
From: kumavis <aaron@kumavis.me>
Date: Sun, 22 May 2016 15:23:16 -0700
Subject: inpage - refactor for modularity

---
 app/scripts/lib/auto-reload.js | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 app/scripts/lib/auto-reload.js

(limited to 'app/scripts/lib/auto-reload.js')

diff --git a/app/scripts/lib/auto-reload.js b/app/scripts/lib/auto-reload.js
new file mode 100644
index 000000000..95a744b2c
--- /dev/null
+++ b/app/scripts/lib/auto-reload.js
@@ -0,0 +1,37 @@
+const once = require('once')
+const ensnare = require('./ensnare.js')
+
+module.exports = setupDappAutoReload
+
+
+function setupDappAutoReload(web3, controlStream){
+
+  // export web3 as a global, checking for usage
+  var pageIsUsingWeb3 = false
+  var resetWasRequested = false
+  global.web3 = ensnare(web3, once(function(){
+    // if web3 usage happened after a reset request, trigger reset late
+    if (resetWasRequested) return triggerReset()
+    // mark web3 as used
+    pageIsUsingWeb3 = true
+    // reset web3 reference
+    global.web3 = web3
+  }))
+
+  // listen for reset requests from metamask
+  controlStream.once('data', function(){
+    resetWasRequested = true
+    // ignore if web3 was not used
+    if (!pageIsUsingWeb3) return
+    // reload after short timeout
+    triggerReset()
+  })
+
+  // reload the page
+  function triggerReset(){
+    setTimeout(function(){
+      global.location.reload()
+    }, 500)
+  }
+
+}
\ No newline at end of file
-- 
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