Modulo node

Summary:
This diff adds ModuloAnimatedNode on iOS. It separates out code originally submitted in facebook#9048.

Test plan (required)

Set up an animation with a modulo node, and `useNativeModule: true`. Compare results with `useNativeModule: false`.
Closes facebook#9626

Differential Revision: D3799636

fbshipit-source-id: 594499f11be41bf3ee709249056a3feedeace9eb

Author: ryangomba

Libraries/Animated/src/AnimatedImplementation.js

@@ -1176,6 +1176,11 @@ class AnimatedModulo extends AnimatedWithChildren {
     this._modulus = modulus;
   }
 
+  __makeNative() {
+    super.__makeNative();
+    this._a.__makeNative();
+  }
+
   __getValue(): number {
     return (this._a.__getValue() % this._modulus + this._modulus) % this._modulus;
   }
@@ -1191,6 +1196,14 @@ class AnimatedModulo extends AnimatedWithChildren {
   __detach(): void {
     this._a.__removeChild(this);
   }
+
+  __getNativeConfig(): any {
+    return {
+      type: 'modulus',
+      input: this._a.__getNativeTag(),
+      modulus: this._modulus,
+    };
+  }
 }
 
 class AnimatedDiffClamp extends AnimatedWithChildren {

Libraries/NativeAnimation/Nodes/RCTModuloAnimatedNode.h

@@ -0,0 +1,14 @@
+/**
+ * Copyright (c) 2015-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 "RCTValueAnimatedNode.h"
+
+@interface RCTModuloAnimatedNode : RCTValueAnimatedNode
+
+@end

Libraries/NativeAnimation/Nodes/RCTModuloAnimatedNode.m

@@ -0,0 +1,23 @@
+/**
+ * Copyright (c) 2015-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 "RCTModuloAnimatedNode.h"
+
+@implementation RCTModuloAnimatedNode
+
+- (void)performUpdate
+{
+  [super performUpdate];
+  NSNumber *inputNode = self.config[@"input"];
+  NSNumber *modulus = self.config[@"modulus"];
+  RCTValueAnimatedNode *parent = (RCTValueAnimatedNode *)self.parentNodes[inputNode];
+  self.value = fmodf(parent.value, modulus.floatValue);
+}
+
+@end

Libraries/NativeAnimation/RCTAnimation.xcodeproj/project.pbxproj

@@ -19,6 +19,7 @@
 		13E501EE1D07A6C9005F35D8 /* RCTStyleAnimatedNode.m in Sources */ = {isa = PBXBuildFile; fileRef = 13E501E31D07A6C9005F35D8 /* RCTStyleAnimatedNode.m */; };
 		13E501EF1D07A6C9005F35D8 /* RCTTransformAnimatedNode.m in Sources */ = {isa = PBXBuildFile; fileRef = 13E501E51D07A6C9005F35D8 /* RCTTransformAnimatedNode.m */; };
 		13E501F01D07A6C9005F35D8 /* RCTValueAnimatedNode.m in Sources */ = {isa = PBXBuildFile; fileRef = 13E501E71D07A6C9005F35D8 /* RCTValueAnimatedNode.m */; };
+		94DAE3F91D7334A70059942F /* RCTModuloAnimatedNode.m in Sources */ = {isa = PBXBuildFile; fileRef = 94DAE3F81D7334A70059942F /* RCTModuloAnimatedNode.m */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXCopyFilesBuildPhase section */
@@ -59,6 +60,8 @@
 		13E501E51D07A6C9005F35D8 /* RCTTransformAnimatedNode.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = RCTTransformAnimatedNode.m; sourceTree = "<group>"; };
 		13E501E61D07A6C9005F35D8 /* RCTValueAnimatedNode.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = RCTValueAnimatedNode.h; sourceTree = "<group>"; };
 		13E501E71D07A6C9005F35D8 /* RCTValueAnimatedNode.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = RCTValueAnimatedNode.m; sourceTree = "<group>"; };
+		94DAE3F71D7334A70059942F /* RCTModuloAnimatedNode.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = RCTModuloAnimatedNode.h; sourceTree = "<group>"; };
+		94DAE3F81D7334A70059942F /* RCTModuloAnimatedNode.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = RCTModuloAnimatedNode.m; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -91,6 +94,8 @@
 				13E501DB1D07A6C9005F35D8 /* RCTAnimationDriverNode.m */,
 				13E501DC1D07A6C9005F35D8 /* RCTInterpolationAnimatedNode.h */,
 				13E501DD1D07A6C9005F35D8 /* RCTInterpolationAnimatedNode.m */,
+				94DAE3F71D7334A70059942F /* RCTModuloAnimatedNode.h */,
+				94DAE3F81D7334A70059942F /* RCTModuloAnimatedNode.m */,
 				13E501DE1D07A6C9005F35D8 /* RCTMultiplicationAnimatedNode.h */,
 				13E501DF1D07A6C9005F35D8 /* RCTMultiplicationAnimatedNode.m */,
 				13E501E01D07A6C9005F35D8 /* RCTPropsAnimatedNode.h */,
@@ -176,6 +181,7 @@
 			buildActionMask = 2147483647;
 			files = (
 				13E501F01D07A6C9005F35D8 /* RCTValueAnimatedNode.m in Sources */,
+				94DAE3F91D7334A70059942F /* RCTModuloAnimatedNode.m in Sources */,
 				13E501EE1D07A6C9005F35D8 /* RCTStyleAnimatedNode.m in Sources */,
 				13E501CC1D07A644005F35D8 /* RCTAnimationUtils.m in Sources */,
 				13E501CF1D07A644005F35D8 /* RCTNativeAnimatedModule.m in Sources */,

Libraries/NativeAnimation/RCTNativeAnimatedModule.m

@@ -15,6 +15,7 @@
 #import "RCTConvert.h"
 #import "RCTInterpolationAnimatedNode.h"
 #import "RCTLog.h"
+#import "RCTModuloAnimatedNode.h"
 #import "RCTMultiplicationAnimatedNode.h"
 #import "RCTPropsAnimatedNode.h"
 #import "RCTStyleAnimatedNode.h"
@@ -69,6 +70,7 @@ - (dispatch_queue_t)methodQueue
             @"interpolation" : [RCTInterpolationAnimatedNode class],
             @"addition" : [RCTAdditionAnimatedNode class],
             @"multiplication" : [RCTMultiplicationAnimatedNode class],
+            @"modulus" : [RCTModuloAnimatedNode class],
             @"transform" : [RCTTransformAnimatedNode class]};
   });