Build ChatListUI

submodules/LegacyComponents/Sources/TGAnimationUtils.m

@@ -0,0 +1,146 @@
+#import "TGAnimationUtils.h"
+
+#import <LegacyComponents/LegacyComponents.h>
+
+NSString *kCAMediaTimingFunctionSpring = @"kCAMediaTimingFunctionSpring";
+
+@interface TGLayerAnimationDelegate : NSObject <CAAnimationDelegate> {
+    void (^_completion)(bool);
+}
+
+@end
+
+@implementation TGLayerAnimationDelegate
+
+- (instancetype)initWithCompletion:(void (^)(bool))completion {
+    self = [super init];
+    if (self != nil) {
+        _completion = [completion copy];
+    }
+    return self;
+}
+
+- (void)animationDidStop:(__unused CAAnimation *)anim finished:(BOOL)flag {
+    if (_completion) {
+        _completion(flag);
+    }
+}
+
+@end
+
+@interface CAAnimation (AnimationUtils)
+
+@end
+
+@implementation CAAnimation (AnimationUtils)
+
+- (void)setCompletionBlock:(void (^)(bool))block {
+    self.delegate = [[TGLayerAnimationDelegate alloc] initWithCompletion:block];
+}
+
+@end
+
+
+static CABasicAnimation * _Nonnull makeSpringAnimation(NSString * _Nonnull keyPath) {
+    CASpringAnimation *springAnimation = [CASpringAnimation animationWithKeyPath:keyPath];
+    springAnimation.mass = 3.0f;
+    springAnimation.stiffness = 1000.0f;
+    springAnimation.damping = 500.0f;
+    springAnimation.duration = 0.5;//springAnimation.settlingDuration;
+    springAnimation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear];
+    return springAnimation;
+}
+
+static CABasicAnimation * _Nonnull makeExtendedSpringAnimation(NSString * _Nonnull keyPath, CGFloat damping) {
+    CASpringAnimation *springAnimation = [CASpringAnimation animationWithKeyPath:keyPath];
+    springAnimation.mass = 3.0f;
+    springAnimation.stiffness = 1000.0f;
+    springAnimation.damping = damping;
+    springAnimation.duration = 0.5;//springAnimation.settlingDuration;
+    springAnimation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear];
+    return springAnimation;
+}
+
+@implementation CALayer (AnimationUtils)
+
+- (void)animateFrom:(id)from to:(id)to keyPath:(NSString *)keyPath timingFunction:(NSString *)timingFunction duration:(NSTimeInterval)duration removeOnCompletion:(bool)removeOnCompletion completion:(void (^)(bool))completion {
+    if ([timingFunction isEqualToString:kCAMediaTimingFunctionSpring]) {
+        CABasicAnimation *animation = makeSpringAnimation(keyPath);
+        animation.fromValue = from;
+        animation.toValue = to;
+        animation.removedOnCompletion = removeOnCompletion;
+        animation.fillMode = kCAFillModeForwards;
+        if (completion != nil) {
+            [animation setCompletionBlock:completion];
+        }
+        
+        float k = (float)TGAnimationSpeedFactor();
+        float speed = 1.0f;
+        if (k != 0 && k != 1) {
+            speed = 1.0f / k;
+        }
+        
+        animation.speed = speed * (float)(animation.duration / duration);
+        
+        [self addAnimation:animation forKey:keyPath];
+    } else {
+        float k = (float)TGAnimationSpeedFactor();
+        float speed = 1.0f;
+        if (k != 0 && k != 1) {
+            speed = 1.0f / k;
+        }
+        
+        CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:keyPath];
+        animation.fromValue = from;
+        animation.toValue = to;
+        animation.duration = duration;
+        animation.timingFunction = [CAMediaTimingFunction functionWithName: timingFunction];
+        animation.removedOnCompletion = removeOnCompletion;
+        animation.fillMode = kCAFillModeForwards;
+        animation.speed = speed;
+        if (completion != nil) {
+            [animation setCompletionBlock:completion];
+        }
+        
+        [self addAnimation:animation forKey:keyPath];
+    }
+}
+
+- (void)animateSpringFrom:(id)from to:(id)to keyPath:(NSString *)keyPath duration:(NSTimeInterval)duration removeOnCompletion:(bool)removeOnCompletion completion:(void (^)(bool))completion {
+    CABasicAnimation *animation = makeExtendedSpringAnimation(keyPath, 75.0f);
+    animation.fromValue = from;
+    animation.toValue = to;
+    animation.removedOnCompletion = removeOnCompletion;
+    animation.fillMode = kCAFillModeForwards;
+    if (completion != nil) {
+        [animation setCompletionBlock:completion];
+    }
+    
+    float k = (float)TGAnimationSpeedFactor();
+    float speed = 1.0f;
+    if (k != 0 && k != 1) {
+        speed = 1.0f / k;
+    }
+    
+    animation.speed = speed * (float)(animation.duration / duration);
+    
+    [self addAnimation:animation forKey:keyPath];
+}
+
+- (void)animateAlphaFrom:(CGFloat)from to:(CGFloat)to duration:(NSTimeInterval)duration timingFunction:(NSString *)timingFunction removeOnCompletion:(bool)removeOnCompletion completion:(void (^)(bool))completion {
+    [self animateFrom:@(from) to:@(to) keyPath:@"opacity" timingFunction:timingFunction duration:duration removeOnCompletion:removeOnCompletion completion:completion];
+}
+
+- (void)animateScaleFrom:(CGFloat)from to:(CGFloat)to duration:(NSTimeInterval)duration timingFunction:(NSString *)timingFunction removeOnCompletion:(bool)removeOnCompletion completion:(void (^)(bool))completion {
+    [self animateFrom:@(from) to:@(to) keyPath:@"transform.scale" timingFunction:timingFunction duration:duration removeOnCompletion:removeOnCompletion completion:completion];
+}
+
+- (void)animateSpringScaleFrom:(CGFloat)from to:(CGFloat)to duration:(NSTimeInterval)duration removeOnCompletion:(bool)removeOnCompletion completion:(void (^)(bool))completion {
+    [self animateSpringFrom:@(from) to:@(to) keyPath:@"transform.scale" duration:duration removeOnCompletion:removeOnCompletion completion:completion];
+}
+
+- (void)animatePositionFrom:(CGPoint)from to:(CGPoint)to duration:(NSTimeInterval)duration timingFunction:(NSString *)timingFunction removeOnCompletion:(bool)removeOnCompletion completion:(void (^)(bool))completion {
+    [self animateFrom:[NSValue valueWithCGPoint:from] to:[NSValue valueWithCGPoint:to] keyPath:@"position" timingFunction:timingFunction duration:duration removeOnCompletion:removeOnCompletion completion:completion];
+}
+
+@end