From 21efb90b4c6b0e0e446b73e3fad3f13336cc0d8a Mon Sep 17 00:00:00 2001
From: Alexander Ljungberg <aljungberg@slevenbits.com>
Date: Fri, 8 Feb 2013 11:46:08 +0000
Subject: [PATCH] Refs #1700. Fixed: setItemPrototype crash.

Setting the item prototype without first adding the collection view to a view would cause a crash, as would reloadContent.

This fix makes sure the collection view doesn't try to tile itself unless it has a frame.
---
 AppKit/CPCollectionView.j | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/AppKit/CPCollectionView.j b/AppKit/CPCollectionView.j
index 6b28e452a..ef0b2f811 100644
--- a/AppKit/CPCollectionView.j
+++ b/AppKit/CPCollectionView.j
@@ -492,6 +492,10 @@ var HORIZONTAL_MARGIN = 2;
         oldItemSize         = _itemSize,
         storedFrameSize     = _storedFrameSize;
 
+    // No need to tile if we are not yet placed in the view hierarchy.
+    if (!frameSize)
+        return;
+
     [self _updateMinMaxItemSizeIfNeeded];
 
     [self _computeGridWithSize:frameSize count:AT_REF(count)];