130 lines
3.3 KiB
Objective-C
130 lines
3.3 KiB
Objective-C
// Copyright 2004-present Facebook. All Rights Reserved.
|
|
|
|
#import "RCTWrapperViewControllerHostingView.h"
|
|
|
|
#import <React/UIView+React.h>
|
|
|
|
#pragma mark - UIViewController+Children
|
|
|
|
@interface UIViewController (Children)
|
|
|
|
@property (nonatomic, readonly) BOOL isAttached;
|
|
- (void)attachChildViewController:(UIViewController *)childViewController toContainerView:(UIView *)containerView;
|
|
- (void)detachChildViewController:(UIViewController *)childViewController;
|
|
|
|
@end
|
|
|
|
@implementation UIViewController (Children)
|
|
|
|
- (BOOL)isAttached
|
|
{
|
|
return self.parentViewController != nil;
|
|
}
|
|
|
|
- (void)attachChildViewController:(UIViewController *)childViewController toContainerView:(UIView *)containerView
|
|
{
|
|
[self addChildViewController:childViewController];
|
|
// `[childViewController willMoveToParentViewController:self]` is calling automatically
|
|
[containerView addSubview:childViewController.view];
|
|
childViewController.view.frame = containerView.bounds;
|
|
childViewController.view.translatesAutoresizingMaskIntoConstraints = YES;
|
|
childViewController.view.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
|
|
[childViewController didMoveToParentViewController:self];
|
|
|
|
[childViewController beginAppearanceTransition:true animated:false];
|
|
[childViewController endAppearanceTransition];
|
|
}
|
|
|
|
- (void)detachChildViewController:(UIViewController *)childViewController
|
|
{
|
|
[childViewController beginAppearanceTransition:false animated: false];
|
|
[childViewController endAppearanceTransition];
|
|
|
|
[childViewController willMoveToParentViewController:nil];
|
|
[childViewController.view removeFromSuperview];
|
|
[childViewController removeFromParentViewController];
|
|
// `[childViewController didMoveToParentViewController:nil]` is calling automatically
|
|
}
|
|
|
|
@end
|
|
|
|
@implementation RCTWrapperViewControllerHostingView {
|
|
UIViewController *_Nullable _contentViewController;
|
|
}
|
|
|
|
#pragma mark - `contentViewController`
|
|
|
|
- (nullable UIViewController *)contentViewController
|
|
{
|
|
return _contentViewController;
|
|
}
|
|
|
|
- (void)setContentViewController:(UIViewController *)contentViewController
|
|
{
|
|
|
|
if (_contentViewController) {
|
|
[self detachContentViewControllerIfNeeded];
|
|
}
|
|
|
|
_contentViewController = contentViewController;
|
|
|
|
if (_contentViewController) {
|
|
[self attachContentViewControllerIfNeeded];
|
|
}
|
|
}
|
|
|
|
#pragma mark - Attaching and Detaching
|
|
|
|
- (void)attachContentViewControllerIfNeeded
|
|
{
|
|
if (self.contentViewController.isAttached) {
|
|
return;
|
|
}
|
|
|
|
[self.reactViewController attachChildViewController:self.contentViewController toContainerView:self];
|
|
}
|
|
|
|
- (void)detachContentViewControllerIfNeeded
|
|
{
|
|
if (!self.contentViewController.isAttached) {
|
|
return;
|
|
}
|
|
|
|
[self.reactViewController detachChildViewController:self.contentViewController];
|
|
}
|
|
|
|
#pragma mark - Life cycle
|
|
|
|
- (void)willMoveToWindow:(UIWindow *)newWindow
|
|
{
|
|
if (newWindow == nil) {
|
|
[self detachContentViewControllerIfNeeded];
|
|
}
|
|
}
|
|
|
|
- (void)didMoveToWindow
|
|
{
|
|
[super didMoveToWindow];
|
|
[self attachContentViewControllerIfNeeded];
|
|
}
|
|
|
|
#pragma mark - Layout
|
|
|
|
- (void)setNeedsLayout
|
|
{
|
|
[super setNeedsLayout];
|
|
[self.superview setNeedsLayout];
|
|
}
|
|
|
|
- (CGSize)intrinsicContentSize
|
|
{
|
|
return self.contentViewController.view.intrinsicContentSize;
|
|
}
|
|
|
|
- (CGSize)sizeThatFits:(CGSize)size
|
|
{
|
|
return [self.contentViewController.view sizeThatFits:size];
|
|
}
|
|
|
|
@end
|