Build ChatListUI

submodules/LegacyComponents/Sources/POPAnimationExtras.h

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+/**
+ Copyright (c) 2014-present, Facebook, Inc.
+ All rights reserved.
+ 
+ This source code is licensed under the BSD-style license found in the
+ LICENSE file in the root directory of this source tree. An additional grant
+ of patent rights can be found in the PATENTS file in the same directory.
+ */
+
+#import <QuartzCore/CAAnimation.h>
+
+#import "POPDefines.h"
+#import "POPSpringAnimation.h"
+
+/**
+ @abstract The current drag coefficient.
+ @discussion A value greater than 1.0 indicates Simulator slow-motion animations are enabled. Defaults to 1.0.
+ */
+extern CGFloat POPAnimationDragCoefficient();
+
+@interface CAAnimation (POPAnimationExtras)
+
+/**
+ @abstract Apply the current drag coefficient to animation speed.
+ @discussion Convenience utility to respect Simulator slow-motion animation settings.
+ */
+- (void)pop_applyDragCoefficient;
+
+@end
+
+@interface POPSpringAnimation (POPAnimationExtras)
+
+/**
+ @abstract Converts from spring bounciness and speed to tension, friction and mass dynamics values.
+ */
++ (void)convertBounciness:(CGFloat)bounciness speed:(CGFloat)speed toTension:(CGFloat *)outTension friction:(CGFloat *)outFriction mass:(CGFloat *)outMass;
+
+/**
+ @abstract Converts from dynamics tension, friction and mass to spring bounciness and speed values.
+ */
++ (void)convertTension:(CGFloat)tension friction:(CGFloat)friction toBounciness:(CGFloat *)outBounciness speed:(CGFloat *)outSpeed;
+
+@end