From 185ad5e747950ad90dcf4a445d3915e39991d8e9 Mon Sep 17 00:00:00 2001
From: Alexandre Wilhelm <contact.dogild@gmail.com>
Date: Mon, 4 Apr 2016 06:48:26 -0700
Subject: [PATCH] Fixed: crash when having a CPTableViewHeader without a
 CPTableView

Previously, when having a CPTableViewHeader without a CPTableView, cappuccino just crashed.
We now check if _tableView is set before iterating on the tableview's columns.
---
 AppKit/CPTableHeaderView.j | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/AppKit/CPTableHeaderView.j b/AppKit/CPTableHeaderView.j
index 58f5cb152..a9ec28a28 100644
--- a/AppKit/CPTableHeaderView.j
+++ b/AppKit/CPTableHeaderView.j
@@ -466,9 +466,12 @@ var CPTableHeaderViewResizeZone = 3.0,
 - (void)updateTrackingAreas
 {
     [self removeAllTrackingAreas];
-    
+
     var options = CPTrackingCursorUpdate | CPTrackingActiveInKeyWindow;
-    
+
+    if (!_tableView)
+      return;
+
     for (var i = 0; i < _tableView._tableColumns.length; i++)
         [self addTrackingArea:[[CPTrackingArea alloc] initWithRect:[self _cursorRectForColumn:i]
                                                            options:options