react-native/React/Fabric/Mounting/RCTComponentViewProtocol.h

65 lines
1.9 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 <UIKit/UIKit.h>
#import <fabric/core/Props.h>
#import <fabric/core/LayoutMetrics.h>
#import <React/RCTPrimitives.h>
NS_ASSUME_NONNULL_BEGIN
/**
* Represents a `UIView` instance managed by React.
* All methods are non-@optional.
* `UIView+ComponentViewProtocol` category provides default implementation
* for all of them.
*/
@protocol RCTComponentViewProtocol <NSObject>
/*
* Called for mounting (attaching) a child component view inside `self`
* component view.
* Receiver must add `childComponentView` as a subview.
*/
- (void)mountChildComponentView:(UIView<RCTComponentViewProtocol> *)childComponentView
index:(NSInteger)index;
/*
* Called for unmounting (detaching) a child component view from `self`
* component view.
* Receiver must remove `childComponentView` as a subview.
*/
- (void)unmountChildComponentView:(UIView<RCTComponentViewProtocol> *)childComponentView
index:(NSInteger)index;
/*
* Called for updating component's props.
* Receiver must update native view props accordingly changed props.
*/
- (void)updateProps:(facebook::react::SharedProps)props
oldProps:(facebook::react::SharedProps)oldProps;
/*
* Called for updating component's layout metrics.
* Receiver must update `UIView` layout-related fields (such as `frame`,
* `bounds`, `layer.zPosition`, and so on) accordingly.
*/
- (void)updateLayoutMetrics:(facebook::react::LayoutMetrics)layoutMetrics
oldLayoutMetrics:(facebook::react::LayoutMetrics)oldLayoutMetrics;
/*
* Called right after the component view is moved to a recycle pool.
* Receiver must reset any local state and release associated
* non-reusable resources.
*/
- (void)prepareForRecycle;
@end
NS_ASSUME_NONNULL_END