From cd858d12f3adcb7067ae922a6d205abde3fe0807 Mon Sep 17 00:00:00 2001
From: YUKI Hiroshi <shimoda@clear-code.com>
Date: Tue, 5 Mar 2013 18:48:49 +0900
Subject: [PATCH] Find pseudo drop target tab from the drop position for
 dragging on the top or bottom of the tab bar (#461)

---
 modules/tabbarDNDObserver.js | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/modules/tabbarDNDObserver.js b/modules/tabbarDNDObserver.js
index 2c00fb05..ec74c789 100644
--- a/modules/tabbarDNDObserver.js
+++ b/modules/tabbarDNDObserver.js
@@ -321,6 +321,17 @@ catch(e) {
 								b.tabContainer._getDropIndex(aEvent) ;
 				if (DEBUG) dump('  on the tab '+index+'\n');
 				info.target = tab = tabs[Math.min(index, lastTabIndex)];
+				if (index == tab._tPos) {
+					if (index > 0)
+						info.target = tab = tabs[index - 1];
+					info.position = sv.kDROP_AFTER;
+					if (DEBUG) dump('  => after the last tab\n');
+				} else if (index == firstTab._tPos) {
+					if (index < tabs.length-1)
+						info.target = tab = tabs[index + 1];
+					info.position = sv.kDROP_BEFORE;
+					if (DEBUG) dump('  => before the first tab\n');
+				}
 				if (DEBUG) dump('  info.target = '+info.target._tPos+'\n');
 			}
 		}