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

58 lines
1.6 KiB
Objective-C

/**
* Copyright (c) 2015-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
#import "RCTTransformAnimatedNode.h"
#import "RCTValueAnimatedNode.h"
@implementation RCTTransformAnimatedNode
{
NSMutableDictionary<NSString *, NSObject *> *_propsDictionary;
}
- (instancetype)initWithTag:(NSNumber *)tag
config:(NSDictionary<NSString *, id> *)config;
{
if ((self = [super initWithTag:tag config:config])) {
_propsDictionary = [NSMutableDictionary new];
}
return self;
}
- (NSDictionary *)propsDictionary
{
return _propsDictionary;
}
- (void)performUpdate
{
[super performUpdate];
NSArray<NSDictionary *> *transformConfigs = self.config[@"transforms"];
NSMutableArray<NSDictionary *> *transform = [NSMutableArray arrayWithCapacity:transformConfigs.count];
for (NSDictionary *transformConfig in transformConfigs) {
NSString *type = transformConfig[@"type"];
NSString *property = transformConfig[@"property"];
NSNumber *value;
if ([type isEqualToString: @"animated"]) {
NSNumber *nodeTag = transformConfig[@"nodeTag"];
RCTAnimatedNode *node = [self.parentNodes objectForKey:nodeTag];
if (![node isKindOfClass:[RCTValueAnimatedNode class]]) {
continue;
}
RCTValueAnimatedNode *parentNode = (RCTValueAnimatedNode *)node;
value = @(parentNode.value);
} else {
value = transformConfig[@"value"];
}
[transform addObject:@{property: value}];
}
_propsDictionary[@"transform"] = transform;
}
@end