From 8cb536206d106b30230c1d9f3f862985498e4662 Mon Sep 17 00:00:00 2001
From: Vivien Nicolas <21@vingtetun.org>
Date: Tue, 12 Feb 2013 16:31:08 -0800
Subject: [PATCH] Bug 839473 - Return early in form.js for non editable content
 r=fabrice

---
 b2g/chrome/content/forms.js | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/b2g/chrome/content/forms.js b/b2g/chrome/content/forms.js
index 5a35fe680285..20a64878d576 100644
--- a/b2g/chrome/content/forms.js
+++ b/b2g/chrome/content/forms.js
@@ -237,12 +237,20 @@ let FormAssistant = {
 
     switch (evt.type) {
       case "focus":
-        if (target && isContentEditable(target)) {
+        if (!target) {
+          break;
+        }
+
+        if (target instanceof HTMLDocument || target == content) {
+          break;
+        }
+
+        if (isContentEditable(target)) {
           this.showKeyboard(this.getTopLevelEditable(target));
           break;
         }
 
-        if (target && this.isFocusableElement(target))
+        if (this.isFocusableElement(target))
           this.showKeyboard(target);
         break;