From 12e8d4635d3e412801d0ddf3e19122de6a041600 Mon Sep 17 00:00:00 2001
From: Piro / SHIMODA Hiroshi <piro@p.club.ne.jp>
Date: Thu, 13 Jan 2011 01:36:14 +0900
Subject: [PATCH] pinned tabs are wrongly positioned if "auto hide" is enabled.

---
 content/treestyletab/treestyletabbrowser.js | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/content/treestyletab/treestyletabbrowser.js b/content/treestyletab/treestyletabbrowser.js
index 312226c7..02cffd42 100644
--- a/content/treestyletab/treestyletabbrowser.js
+++ b/content/treestyletab/treestyletabbrowser.js
@@ -204,7 +204,11 @@ TreeStyleTabBrowser.prototype = {
 	{
 		var b = this.mTabBrowser;
 		var tabbar = b.tabContainer;
-		if (!tabbar || !tabbar._positionPinnedTabs)
+		if (
+			!tabbar ||
+			!tabbar._positionPinnedTabs ||
+			!tabbar.boxObject.width
+			)
 			return;
 
 		if (!this.isVertical) {
@@ -213,10 +217,13 @@ TreeStyleTabBrowser.prototype = {
 			return;
 		}
 
+		var maxWidth = this._tabStripPlaceHolder.boxObject.width ||
+						this.tabStrip.boxObject.width;
+
 		var count  = this.pinnedTabsCount;
 		var width  = aWidth || this.PINNED_TAB_DEFAULT_WIDTH;
 		var height = aHeight || this.PINNED_TAB_DEFAULT_HEIGHT;
-		var maxCol = Math.floor(this.tabStrip.boxObject.width / width);
+		var maxCol = Math.floor(maxWidth / width);
 		var maxRow = Math.ceil(count / maxCol);
 		var col    = 0;
 		var row    = 0;