From 006e4709d1b9cb8cdc41b3f7091f1805f7c77a51 Mon Sep 17 00:00:00 2001
From: Matt Westcott <matt@west.co.tt>
Date: Fri, 9 Jan 2015 12:10:08 +0000
Subject: [PATCH] hook up JS initializer code

---
 wagtail/wagtailadmin/widgets.py | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/wagtail/wagtailadmin/widgets.py b/wagtail/wagtailadmin/widgets.py
index 8f39a7d7a..e7b2ffb31 100644
--- a/wagtail/wagtailadmin/widgets.py
+++ b/wagtail/wagtailadmin/widgets.py
@@ -63,7 +63,19 @@ class StreamWidget(widgets.Widget):
 
     def render(self, name, value, attrs=None):
         bound_block = self.block_def.bind(json.loads(value), prefix=name)
-        return bound_block.render_form()
+        js_initializer = self.block_def.js_initializer()
+        if js_initializer:
+            js_snippet = """
+                <script>
+                $(function() {
+                    var initializer = %s;
+                    initializer('%s');
+                })
+                </script>
+            """ % (js_initializer, name)
+        else:
+            js_snippet = ''
+        return mark_safe(bound_block.render_form() + js_snippet)
 
     @property
     def media(self):