From c074006a69db73a116dc04ec78844468a8cea7d3 Mon Sep 17 00:00:00 2001
From: Oleg Gaidarenko <markelog@gmail.com>
Date: Wed, 13 May 2015 01:15:19 +0300
Subject: Event: provide verbose comment for focus(in | out) & rename support
 prop

Closes gh-2312
---
 src/event.js         | 16 +++++++++++-----
 src/event/support.js |  2 +-
 2 files changed, 12 insertions(+), 6 deletions(-)

(limited to 'src')

diff --git a/src/event.js b/src/event.js
index 584ba9073..361a5489f 100644
--- a/src/event.js
+++ b/src/event.js
@@ -748,15 +748,21 @@ jQuery.each({
 	};
 });
 
-// Support: Firefox, Chrome, Safari
-// Create "bubbling" focus and blur events
-if ( !support.focusinBubbles ) {
+// Support: Firefox
+// Firefox doesn't have focus(in | out) events
+// Related ticket - https://bugzilla.mozilla.org/show_bug.cgi?id=687787
+//
+// Support: Chrome, Safari
+// focus(in | out) events fire after focus & blur events,
+// which is spec violation - http://www.w3.org/TR/DOM-Level-3-Events/#events-focusevent-event-order
+// Related ticket - https://code.google.com/p/chromium/issues/detail?id=449857
+if ( !support.focusin ) {
 	jQuery.each({ focus: "focusin", blur: "focusout" }, function( orig, fix ) {
 
 		// Attach a single capturing handler on the document while someone wants focusin/focusout
 		var handler = function( event ) {
-				jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ), true );
-			};
+			jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ), true );
+		};
 
 		jQuery.event.special[ fix ] = {
 			setup: function() {
diff --git a/src/event/support.js b/src/event/support.js
index 85060db77..7ddca6a8d 100644
--- a/src/event/support.js
+++ b/src/event/support.js
@@ -2,7 +2,7 @@ define([
 	"../var/support"
 ], function( support ) {
 
-support.focusinBubbles = "onfocusin" in window;
+support.focusin = "onfocusin" in window;
 
 return support;
 
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