Build ChatListUI

submodules/LegacyComponents/Sources/POPCustomAnimation.mm

@@ -0,0 +1,56 @@
+/**
+ 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 "POPCustomAnimation.h"
+#import "POPAnimationInternal.h"
+
+@interface POPCustomAnimation ()
+@property (nonatomic, copy) POPCustomAnimationBlock animate;
+@end
+
+@implementation POPCustomAnimation
+@synthesize currentTime = _currentTime;
+@synthesize elapsedTime = _elapsedTime;
+@synthesize animate = _animate;
+
++ (instancetype)animationWithBlock:(BOOL(^)(id target, POPCustomAnimation *))block
+{
+  POPCustomAnimation *b = [[self alloc] _init];
+  b.animate = block;
+  return b;
+}
+
+- (id)_init
+{
+  self = [super _init];
+  if (nil != self) {
+    _state->type = kPOPAnimationCustom;
+  }
+  return self;
+}
+
+- (CFTimeInterval)beginTime
+{
+  POPAnimationState *s = POPAnimationGetState(self);
+  return s->startTime > 0 ? s->startTime : s->beginTime;
+}
+
+- (BOOL)_advance:(id)object currentTime:(CFTimeInterval)currentTime elapsedTime:(CFTimeInterval)elapsedTime
+{
+  _currentTime = currentTime;
+  _elapsedTime = elapsedTime;
+  return _animate(object, self);
+}
+
+- (void)_appendDescription:(NSMutableString *)s debug:(BOOL)debug
+{
+  [s appendFormat:@"; elapsedTime = %f; currentTime = %f;", _elapsedTime, _currentTime];
+}
+
+@end