From 7bfc979594b083c36f6a08e49273ef7c9ad7b13a Mon Sep 17 00:00:00 2001
From: Adam Cohen <adamcohen@google.com>
Date: Fri, 28 Jan 2011 13:52:37 -0800
Subject: [PATCH] Clamping maximum overscroll amount

- It was possible to crash launcher if you pulled really really far
  to the right

Change-Id: I3ec45c7cbda2c4036e2e2359f2aa617ce7091bcd
---
 src/com/android/launcher2/PagedView.java | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/com/android/launcher2/PagedView.java b/src/com/android/launcher2/PagedView.java
index c9044b4d06..ede029b05b 100644
--- a/src/com/android/launcher2/PagedView.java
+++ b/src/com/android/launcher2/PagedView.java
@@ -879,6 +879,11 @@ public abstract class PagedView extends ViewGroup {
         if (f == 0) return;
         f = f / (Math.abs(f)) * (overScrollInfluenceCurve(Math.abs(f)));
 
+        // Clamp this factor, f, to -1 < f < 1
+        if (Math.abs(f) >= 1) {
+            f /= Math.abs(f);
+        }
+
         int overScrollAmount = (int) Math.round(OVERSCROLL_DAMP_FACTOR * f * screenSize);
         if (amount < 0) {
             mScrollX = overScrollAmount;