ui/base/gestures/gesture_sequence.cc - Issue 11299276: Bound the maximum touchscreen fling velocity.

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Unified Diff: ui/base/gestures/gesture_sequence.cc

Issue 11299276: Bound the maximum touchscreen fling velocity. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src

Patch Set: proof-reading nits Created 8 years, 1 month ago

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Index: ui/base/gestures/gesture_sequence.cc

diff --git a/ui/base/gestures/gesture_sequence.cc b/ui/base/gestures/gesture_sequence.cc

index 115229ab71a4c71069272d4239656878e0e836f1..07d42eda3f74e8e4ea95ac081e387cdb67aea8e0 100644

--- a/ui/base/gestures/gesture_sequence.cc

+++ b/ui/base/gestures/gesture_sequence.cc

@@ -296,7 +296,10 @@ float CalibrateFlingVelocity(float velocity) {

nu += x * a;

x *= normalized_velocity;

}

- return nu * velocity;

+ if (velocity < 0.f)

+ return std::max(nu * velocity, -GestureConfiguration::fling_velocity_cap());

+ else

+ return std::min(nu * velocity, GestureConfiguration::fling_velocity_cap());

}

} // namespace