134 строки
3.7 KiB
Objective-C
134 строки
3.7 KiB
Objective-C
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#import <React/RCTPropsAnimatedNode.h>
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#import <React/RCTLog.h>
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#import <React/RCTSurfacePresenterStub.h>
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#import <React/RCTUIManager.h>
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#import <React/RCTAnimationUtils.h>
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#import <React/RCTStyleAnimatedNode.h>
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#import <React/RCTValueAnimatedNode.h>
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@implementation RCTPropsAnimatedNode
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{
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NSNumber *_connectedViewTag;
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NSNumber *_rootTag;
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NSString *_connectedViewName;
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__weak RCTBridge *_bridge;
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NSMutableDictionary<NSString *, NSObject *> *_propsDictionary; // TODO: use RawProps or folly::dynamic directly
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BOOL _managedByFabric;
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}
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- (instancetype)initWithTag:(NSNumber *)tag
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config:(NSDictionary<NSString *, id> *)config
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{
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if (self = [super initWithTag:tag config:config]) {
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_propsDictionary = [NSMutableDictionary new];
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}
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return self;
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}
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- (BOOL)isManagedByFabric
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{
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return _managedByFabric;
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}
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- (void)connectToView:(NSNumber *)viewTag
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viewName:(NSString *)viewName
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bridge:(RCTBridge *)bridge
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{
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_bridge = bridge;
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_connectedViewTag = viewTag;
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_connectedViewName = viewName;
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_managedByFabric = RCTUIManagerTypeForTagIsFabric(viewTag);
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_rootTag = nil;
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}
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- (void)disconnectFromView:(NSNumber *)viewTag
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{
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_bridge = nil;
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_connectedViewTag = nil;
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_connectedViewName = nil;
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_managedByFabric = NO;
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_rootTag = nil;
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}
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- (void)updateView
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{
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if (_managedByFabric) {
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[_bridge.surfacePresenter synchronouslyUpdateViewOnUIThread:_connectedViewTag
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props:_propsDictionary];
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} else {
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[_bridge.uiManager synchronouslyUpdateViewOnUIThread:_connectedViewTag
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viewName:_connectedViewName
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props:_propsDictionary];
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}
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}
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- (void)restoreDefaultValues
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{
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// Restore the default value for all props that were modified by this node.
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for (NSString *key in _propsDictionary.allKeys) {
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_propsDictionary[key] = [NSNull null];
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}
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if (_propsDictionary.count) {
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[self updateView];
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}
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}
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- (NSString *)propertyNameForParentTag:(NSNumber *)parentTag
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{
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__block NSString *propertyName;
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[self.config[@"props"] enumerateKeysAndObjectsUsingBlock:^(NSString *_Nonnull property, NSNumber *_Nonnull tag, BOOL *_Nonnull stop) {
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if ([tag isEqualToNumber:parentTag]) {
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propertyName = property;
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*stop = YES;
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}
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}];
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return propertyName;
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}
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- (void)performUpdate
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{
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[super performUpdate];
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// Since we are updating nodes after detaching them from views there is a time where it's
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// possible that the view was disconnected and still receive an update, this is normal and we can
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// simply skip that update.
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if (!_connectedViewTag) {
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return;
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}
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for (NSNumber *parentTag in self.parentNodes.keyEnumerator) {
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RCTAnimatedNode *parentNode = [self.parentNodes objectForKey:parentTag];
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if ([parentNode isKindOfClass:[RCTStyleAnimatedNode class]]) {
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[self->_propsDictionary addEntriesFromDictionary:[(RCTStyleAnimatedNode *)parentNode propsDictionary]];
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} else if ([parentNode isKindOfClass:[RCTValueAnimatedNode class]]) {
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NSString *property = [self propertyNameForParentTag:parentTag];
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id animatedObject = [(RCTValueAnimatedNode *)parentNode animatedObject];
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if (animatedObject) {
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self->_propsDictionary[property] = animatedObject;
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} else {
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CGFloat value = [(RCTValueAnimatedNode *)parentNode value];
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self->_propsDictionary[property] = @(value);
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}
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}
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}
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if (_propsDictionary.count) {
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[self updateView];
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}
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}
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@end
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