react-native/Libraries/NativeAnimation/Nodes/RCTPropsAnimatedNode.m

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/**
* 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 "RCTPropsAnimatedNode.h"
#import "RCTAnimationUtils.h"
#import "RCTNativeAnimatedModule.h"
#import "RCTStyleAnimatedNode.h"
#import "RCTViewPropertyMapper.h"
@implementation RCTPropsAnimatedNode
{
RCTStyleAnimatedNode *_parentNode;
}
- (void)onAttachedToNode:(RCTAnimatedNode *)parent
{
[super onAttachedToNode:parent];
if ([parent isKindOfClass:[RCTStyleAnimatedNode class]]) {
_parentNode = (RCTStyleAnimatedNode *)parent;
}
}
- (void)onDetachedFromNode:(RCTAnimatedNode *)parent
{
[super onDetachedFromNode:parent];
if (_parentNode == parent) {
_parentNode = nil;
}
}
- (void)connectToView:(NSNumber *)viewTag animatedModule:(RCTNativeAnimatedModule *)animationModule
{
_propertyMapper = [[RCTViewPropertyMapper alloc] initWithViewTag:viewTag animationModule:animationModule];
}
- (void)disconnectFromView:(NSNumber *)viewTag
{
_propertyMapper = nil;
}
- (void)performUpdate
{
[super performUpdate];
[self performViewUpdatesIfNecessary];
}
- (void)performViewUpdatesIfNecessary
{
NSDictionary *updates = [_parentNode updatedPropsDictionary];
if (updates.count) {
[_propertyMapper updateViewWithDictionary:updates];
}
}
@end