react-native/Libraries/NativeAnimation/RCTViewPropertyMapper.m

95 lines
2.4 KiB
Objective-C

/**
* 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 "RCTViewPropertyMapper.h"
#import <UIKit/UIKit.h>
#import "RCTBridge.h"
#import "RCTUIManager.h"
#import "RCTNativeAnimatedModule.h"
@implementation RCTViewPropertyMapper
{
CGFloat _translateX;
CGFloat _translateY;
CGFloat _scaleX;
CGFloat _scaleY;
CGFloat _rotation;
RCTNativeAnimatedModule *_animationModule;
}
- (instancetype)initWithViewTag:(NSNumber *)viewTag
animationModule:(RCTNativeAnimatedModule *)animationModule
{
if ((self = [super init])) {
_animationModule = animationModule;
_viewTag = viewTag;
_translateX = 0;
_translateY = 0;
_scaleX = 1;
_scaleY = 1;
_rotation = 0;
}
return self;
}
RCT_NOT_IMPLEMENTED(- (instancetype)init)
- (void)updateViewWithDictionary:(NSDictionary<NSString *, NSNumber *> *)updates
{
if (updates.count) {
UIView *view = [_animationModule.bridge.uiManager viewForReactTag:_viewTag];
if (!view) {
return;
}
NSNumber *opacity = updates[@"opacity"];
if (opacity) {
view.alpha = opacity.doubleValue;
}
NSNumber *scale = updates[@"scale"];
if (scale) {
_scaleX = scale.doubleValue;
_scaleY = scale.doubleValue;
}
NSNumber *scaleX = updates[@"scaleX"];
if (scaleX) {
_scaleX = scaleX.doubleValue;
}
NSNumber *scaleY = updates[@"scaleY"];
if (scaleY) {
_scaleY = scaleY.doubleValue;
}
NSNumber *translateX = updates[@"translateX"];
if (translateX) {
_translateX = translateX.doubleValue;
}
NSNumber *translateY = updates[@"translateY"];
if (translateY) {
_translateY = translateY.doubleValue;
}
NSNumber *rotation = updates[@"rotate"];
if (rotation) {
_rotation = rotation.doubleValue;
}
if (translateX || translateY || scale || scaleX || scaleY || rotation) {
CATransform3D xform = CATransform3DMakeScale(_scaleX, _scaleY, 0);
xform = CATransform3DTranslate(xform, _translateX, _translateY, 0);
xform = CATransform3DRotate(xform, _rotation, 0, 0, 1);
view.layer.allowsEdgeAntialiasing = YES;
view.layer.transform = xform;
}
}
}
@end