mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Valentin Shergin
00eab3d6fb
Summary: ComponentDescriptorProvider represents unified way to create a particular descriptor. Now all ComponentViews (which support RCTComponentViewProtocol) expose a `ComponentDescriptorProvider` which will allow creating and registering ComponentDescriptor instances for all visual components automatically as a part of ComponentView registration process. Don't panic, everything is still being as explicit as it always was, no magic involved; we just will have only one registration step instead of two parallel. That also opens a way to register components on the fly. Reviewed By: JoshuaGross Differential Revision: D14963488 fbshipit-source-id: 9e9d9166fabaf7b30b35b8647faa6e3a19cd2435
91 lines
3.0 KiB
Plaintext
91 lines
3.0 KiB
Plaintext
/**
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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 "RCTActivityIndicatorViewComponentView.h"
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#import <react/components/rncore/ComponentDescriptors.h>
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#import <react/components/rncore/EventEmitters.h>
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#import <react/components/rncore/Props.h>
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using namespace facebook::react;
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static UIActivityIndicatorViewStyle convertActivityIndicatorViewStyle(const ActivityIndicatorViewSize &size)
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{
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switch (size) {
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case ActivityIndicatorViewSize::Small:
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return UIActivityIndicatorViewStyleWhite;
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case ActivityIndicatorViewSize::Large:
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return UIActivityIndicatorViewStyleWhiteLarge;
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}
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}
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@implementation RCTActivityIndicatorViewComponentView {
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UIActivityIndicatorView *_activityIndicatorView;
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}
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#pragma mark - RCTComponentViewProtocol
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+ (ComponentDescriptorProvider)componentDescriptorProvider
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{
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return concreteComponentDescriptorProvider<ActivityIndicatorViewComponentDescriptor>();
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}
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- (instancetype)initWithFrame:(CGRect)frame
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{
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if (self = [super initWithFrame:frame]) {
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static const auto defaultProps = std::make_shared<const ActivityIndicatorViewProps>();
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_props = defaultProps;
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_activityIndicatorView = [[UIActivityIndicatorView alloc] initWithFrame:self.bounds];
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_activityIndicatorView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
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if (defaultProps->animating) {
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[_activityIndicatorView startAnimating];
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} else {
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[_activityIndicatorView stopAnimating];
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}
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_activityIndicatorView.color = [UIColor colorWithCGColor:defaultProps->color.get()];
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_activityIndicatorView.hidesWhenStopped = defaultProps->hidesWhenStopped;
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_activityIndicatorView.activityIndicatorViewStyle = convertActivityIndicatorViewStyle(defaultProps->size);
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[self addSubview:_activityIndicatorView];
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}
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return self;
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}
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- (void)updateProps:(SharedProps)props oldProps:(SharedProps)oldProps
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{
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const auto &oldViewProps = *std::static_pointer_cast<const ActivityIndicatorViewProps>(oldProps ?: _props);
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const auto &newViewProps = *std::static_pointer_cast<const ActivityIndicatorViewProps>(props);
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[super updateProps:props oldProps:oldProps];
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if (oldViewProps.animating != newViewProps.animating) {
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if (newViewProps.animating) {
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[_activityIndicatorView startAnimating];
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} else {
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[_activityIndicatorView stopAnimating];
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}
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}
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if (oldViewProps.color.get() != newViewProps.color.get()) {
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_activityIndicatorView.color = [UIColor colorWithCGColor:newViewProps.color.get()];
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}
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// TODO: This prop should be deprecated.
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if (oldViewProps.hidesWhenStopped != newViewProps.hidesWhenStopped) {
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_activityIndicatorView.hidesWhenStopped = newViewProps.hidesWhenStopped;
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}
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if (oldViewProps.size != newViewProps.size) {
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_activityIndicatorView.activityIndicatorViewStyle = convertActivityIndicatorViewStyle(newViewProps.size);
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}
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}
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@end
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